PATENT DOCUMENT

Publication Number: US-11399273-B2
Application Number: US-202016920489-A
Country: US
Kind Code: B2

Title: Multiple SIM card operation of an electronic device

Abstract:
An electronic device discussed herein may communicatively couple to a base station. The base station may receive a first paging cycle assignment corresponding to a first subscriber identification module (SIM) card and determine a second paging cycle assignment for use with a second SIM card. The second paging cycle assignment may be generated based on the first paging cycle assignment. The base station may communicate with the electronic device using the second paging cycle assignment. The second paging cycle assignment may guide the base station to transmit data to the electronic device without interrupting a transmission made according to the first paging cycle assignment.

Claims:
What is claimed is: 
     
       1. A method of operating an electronic device, comprising:
 registering a first subscriber identification module (SIM) to a first network, wherein the electronic device comprises the first SIM and a second SIM; 
 registering the second SIM to a second network after registering the first SIM to the first network; 
 transmitting a first indication of a preferred transmission band to the second network after registering to the second network, the preferred transmission band being based on information received from the first network via registration; 
 receiving a second indication of a transmission band from the second network in response to the second network determining the transmission band based on the preferred transmission band; 
 receiving a third indication of a first paging cycle for the first SIM from the first network and a fourth indication of a second paging cycle for the second SIM from the second network, the first paging cycle defining a first set of reception periods for the electronic device to receive paging data from the first network, the second paging cycle defining a second set of reception periods for the electronic device to receive paging data from the second network, the second paging cycle being determined by the second network, and wherein timing of the second paging cycle is generated based on the first paging cycle; and 
 communicating with the first network using the first SIM on a first frequency range based on the first paging cycle and communicating with the second network using the second SIM on a second frequency range of the transmission band based on the second paging cycle, the first frequency range different than the second frequency range. 
 
     
     
       2. The method of  claim 1 , wherein communicating with the first network comprises determining a first time within the first paging cycle to operate first receiving circuitry operably coupled to the first SIM to receive data from the first network, and wherein communicating with the second network comprises determining a second time within the second paging cycle to operate second receiving circuitry operably coupled to the second SIM to receive data from the second network. 
     
     
       3. The method of  claim 2 , wherein determining the first time within the first paging cycle comprises identifying an end of a connected discontinuous receive mode (C-DRX) gap corresponding to transition between a transmission period of the first paging cycle and an idle period of the first paging cycle, the method comprising switching an operating frequency of radio frequency circuitry from the first frequency range to the second frequency range. 
     
     
       4. The method of  claim 1 , comprising, in response to registering the second SIM to the second network, transmitting the first paging cycle to the second network, wherein receiving the second paging cycle from the second network occurs after the second network uses the first paging cycle to generate the second paging cycle. 
     
     
       5. The method of  claim 1 , wherein the second network is configured to receive the first paging cycle from the first network. 
     
     
       6. The method of  claim 1 , comprising:
 selecting a transmission frequency from a plurality of transmission frequencies of the transmission band; and 
 communicating with the second network using the transmission frequency. 
 
     
     
       7. The method of  claim 1 , comprising:
 receiving the information from the first network regarding operation of the first SIM after the registration to the first network; and 
 determining the preferred transmission band based on the information from the first network, wherein the preferred transmission band enables communication using the second network without conflict with communications using the first network. 
 
     
     
       8. The method of  claim 1 , wherein registering the second SIM to the second network comprises:
 activating the second SIM after activating the first SIM, and 
 in response to activating the second SIM, registering the second SIM to the second network. 
 
     
     
       9. The method of  claim 1 , comprising reducing power supplied to receiving circuitry during idle periods of the first paging cycle. 
     
     
       10. A method of operating a first base station, comprising:
 registering a first subscriber identification module (SIM) of an electronic device to a first network; 
 receiving a first indication of a preferred transmission band from the electronic device after registering the first SIM; 
 determining a transmission band from plurality of transmission bands to assign to the first SIM based on the preferred transmission band; 
 transmitting a second indication of the transmission band to the electronic device after assigning the first SIM to the transmission band; 
 generating a first paging cycle corresponding to the first SIM; 
 transmitting a third indication of the first paging cycle corresponding to the first SIM to a second base station or to the electronic device; and 
 communicating with the electronic device using the first SIM on a first frequency range according to the first paging cycle, the electronic device using a second SIM on a second frequency range different than the first frequency range. 
 
     
     
       11. The method of  claim 10 , wherein generating the first paging cycle comprises:
 transmitting information associated with the first SIM to a second network; 
 receiving information associated with the second SIM from the second network; and 
 generating the first paging cycle based on the information associated with the second SIM. 
 
     
     
       12. The method of  claim 10 , wherein generating the first paging cycle is performed without consideration for a second paging cycle of the second SIM, and wherein the first paging cycle is transmitted to the electronic device. 
     
     
       13. The method of  claim 10 , wherein generating the first paging cycle comprises allocating transmission gaps to enable the electronic device to switch between using the first SIM and using the second SIM. 
     
     
       14. The method of  claim 13 , wherein allocating the transmission gaps comprises generating connected mode discontinuous receive mode (C-DRX) gaps, wherein the first SIM is configured to stop transmission, reception, or both during a respective C-DRX gap corresponding to a transmission duration corresponding to using the second SIM. 
     
     
       15. The method of  claim 10 , comprising communicating with the electronic device using the first SIM during a transmission period of the first paging cycle without interrupting a transmission between the electronic device and the second base station. 
     
     
       16. The method of  claim 15 , comprising communicating with the electronic device using the first SIM through a same radio frequency communication component chain as used by the second SIM, the same radio frequency communication component chain being configured to communicate using a first frequency for the first SIM different from a second frequency for the second SIM. 
     
     
       17. An electronic device, comprising:
 a first subscriber identification module (SIM) configured to receive first data according to a first paging cycle from a first network; 
 a second SIM configured to receive second data according to a second paging cycle from a second network; and 
 a radio frequency chain configured to:
 communicatively couple to a base station, 
 transmit a first indication of a preferred transmission band to the second network, the preferred transmission band being based on information received from the first network during registration of the first SIM, 
 receive a second indication of a transmission band from the second network in response to the second network determining the transmission band based on the preferred transmission band, 
 receive data from the first network using the first SIM according to the first paging cycle, and 
 send a third indication of the first paging cycle to the base station, the base station being configured to:
 receive the third indication of the first paging cycle from the electronic device, 
 determine the second paging cycle for use with the second SIM based on the first paging cycle, and 
 communicate with the electronic device using the second SIM according to the second paging cycle on a first frequency range, wherein the second paging cycle is configured to cause the base station to transmit data to the electronic device without interrupting a transmission mode using the first SIM according to the first paging cycle on a second frequency range different than the first frequency range. 
 
 
 
     
     
       18. The electronic device of  claim 17 , comprising receiving circuitry corresponding to the second SIM configured to receive the second data from the second network according to the second paging cycle before receiving a paging notification from the second network. 
     
     
       19. The electronic device of  claim 17 , comprising:
 receiving circuitry corresponding to the first SIM; and 
 a controller configured to reduce power supplied to the receiving circuitry in response to the second paging cycle indicating a transmission period.

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application is a non-provisional application claiming priority to U.S. Provisional Application No. 62/910,843, entitled “MULTIPLE SIM CARD OPERATION OF AN ELECTRONIC DEVICE,” filed Oct. 4, 2019, which is hereby incorporated by reference in its entirety for all purposes. 
    
    
     BACKGROUND 
     The present disclosure relates generally to electronic devices, and more particularly, to electronic devices that utilize radio frequency signals, transmitters, and receivers in various processes, such as cellular and wireless communication processes. 
     This section is intended to introduce the reader to various aspects of art that may be related to various aspects of the present disclosure, which are described and/or claimed below. This discussion is believed to be helpful in providing the reader with background information to facilitate a better understanding of the various aspects of the present disclosure. Accordingly, it should be understood that these statements are to be read in this light, and not as admissions of prior art. 
     Wireless communication systems are rapidly growing in usage. In recent years, wireless devices such as smartphones and tablet computers have become increasingly sophisticated. In addition to supporting telephone calls, many mobile devices now provide access to the internet, email, text messaging, and navigation using the global positioning system (GPS), and are capable of operating sophisticated applications that utilize these functionalities. 
     Transmitters and/or receivers may be included in various electronic devices to enable communication between user equipment (e.g., user electronic devices, transmitting or receiving electronic devices) and core networks on said wireless networks, deployed through a variety of technologies including but not limited to access network base stations (e.g., network access nodes), such as an eNodeB (eNB) for long-term evolution (LTE) access networks and/or a next generation NodeB (gNB) for 5 th  generation (5G) access networks. In some electronic devices, a transmitter and a receiver are combined to form a transceiver. Transceivers may transmit and/or receive wireless signals by way of an antenna coupled to the transceiver, such as radio frequency (RF) signals indicative of data. Indeed, a transceiver may include a subscriber identification module (SIM) card to communicate with a core network of a provider. The transceiver, however, may not have the capability to use multiple SIM cards to simultaneously communicate with multiple core networks. 
     By way of example, an electronic device may include a transceiver to transmit and/or receive the RF signals over one or more frequencies of a wireless network. The information to be transmitted is typically modulated onto the RF signal before transmission. In other words, the information to be transmitted is typically embedded in an envelope of a carrier signal that has a frequency in a frequency range of a network being used for communication. To embed or extract the information in or from the envelope of the carrier signal, processing may be performed on a received RF signal according to transmission parameters. For example, an electronic device (e.g., user equipment) may demodulate the RF signal (e.g., to remove the carrier signal) to recover the embedded information in the envelope based on a frequency of the received RF signal. 
     The transmission parameters and other settings, such as information used to authenticate an electronic device to a network, may be provided to the electronic device by way of a subscriber identification module (SIM) card and/or by way of an embedded SIM (eSIM) that includes a digital information sometimes included in a SIM card that permits activation to a cellular plan from a carrier without having use a physical SIM card. The SIM card (or eSIM) enables the electronic device to communicate with a core network of a provider. The core network may be a wireless network, such as Wi-Fi or Ethernet, that facilitates the wireless transmission of information between the electronic device and the provider. In some cases, it may be desired to communicate with two or more core networks using the same electronic device. To do so, multiple SIM cards may be installed in the same electronic device. 
     However, when an electronic device tries to use multiple SIM cards, issues sometimes arise, including missed communications (e.g., missed paging notification) and/or device unavailability. For example, when a first SIM card of the electronic device is active, a second SIM card of the electronic device may deactivate and be unavailable. As such, if a core network transmits a paging notification to the second SIM card while the first SIM card is active (where the paging notification may initiate a communication window that enables the second SIM card to communicate with the core network), the second SIM card may miss the paging request and/or may not respond to an incoming data packet from the core network because the second SIM card may be unavailable. 
     SUMMARY 
     A summary of certain embodiments disclosed herein is set forth below. It should be understood that these aspects are presented merely to provide the reader with a brief summary of these certain embodiments and that these aspects are not intended to limit the scope of this disclosure. Indeed, this disclosure may encompass a variety of aspects that may not be set forth below. 
     Embodiments of the present disclosure generally relate to a transceiver of an electronic device (e.g., user equipment) that receives and/or transmits wireless data signals, such as radio frequency (RF) signals. In certain embodiments, the transceiver may include RF circuitry (e.g., Wi-Fi and/or LTE RF circuitry, front end circuitry) that is used, for example, to support transmission and/or reception of RF signals that follow various wireless communication standards or additional communication standards. The RF circuitry may include two or more subscriber identification module (SIM) cards, such as physical SIM cards and/or embedded SIM (eSIM) cards. A SIM card enables the electronic device to communicate with a core network of a network provider via base stations (e.g., network access nodes), and an eSIM card includes similar or same information as the SIM card but is embedded in the phone as to not specifically be a physical SIM card removable from the hardware. The core network may be a cellular network (e.g., long term evolution (LTE), 3 rd  Generation (3G), 4 th  Generation (4G), 5 th  Generation (5G)) that facilitates the wireless transmission of information between the electronic device and the provider. 
     The electronic device may operate according to various processes to enable communication with respective core networks via corresponding SIM cards. In each case, the electronic device is assigned paging cycles (e.g., provided a paging cycle assignment) that define when each SIM card is to operate in a transmission mode, when each SIM card is to operate in a reduced power mode, and/or the amount of time the SIM card is to spend operating in each mode. In this way, the paging cycle assignments define communication patterns for each of the SIM cards used by the electronic device when communicating with multiple core networks. Following or conforming to the paging cycle assignments may reduce or eliminate missed communications between the core network and the corresponding SIM card due to conflicting transmission patterns (such as when the core network attempts to communicate with the electronic device via the corresponding SIM card when the corresponding SIM card is unavailable). 
     Indeed, in a first embodiment, a method of operating an electronic device may include registering a first subscriber identification module (SIM) card to a first core network. The electronic device may include the first SIM card and a second SIM card. The method may involve registering the second SIM card to a second core network after registering the first SIM card to the first core network and receiving a first paging cycle for the first SIM card from the first core network and a second paging cycle for the second SIM card from the second core network. The first paging cycle may define a first set of transmission periods for the electronic device to transmit data to the first core network. The second paging cycle may define a second set of transmission periods for the electronic device to transmit data to the second core network, and the second paging cycle may be determined based on the first paging cycle. The method may include communicating with the first core network using the first SIM card based on the first paging cycle and communicating with the second core network using the second SIM card based on the second paging cycle. 
     In another embodiment, a method of operating a first base station may include registering a first subscriber identification module (SIM) card of an electronic device to a first core network. The method may include generating a first paging cycle corresponding to the first SIM card and transmitting the first paging cycle corresponding to the first SIM card to a second base station or to the electronic device. Furthermore, the method may include communicating with the electronic device according to the first paging cycle without interrupting a transmission of information between a second SIM card of the electronic device and the second base station. 
     In yet another embodiment, an electronic device may include a first subscriber identification module (SIM) card that receives a first paging cycle and a second SIM card that receives a second paging cycle. The electronic device may include a radio frequency chain that communicatively couples to a base station, that receives data from a first core network using the first SIM card according to the first paging cycle, and that sends the first paging cycle to the base station. In some cases, the base station may receive the first paging cycle from the electronic device, determine the second paging cycle for use with the second SIM card based on the first paging cycle, and communicate with the electronic device using the second SIM card according to the second paging cycle. The second paging cycle may cause the base station to transmit data to the electronic device without interrupting a transmission made according to the first paging cycle. 
     Various refinements of the features noted above may exist in relation to various aspects of the present disclosure. Further features may also be incorporated in these various aspects as well. These refinements and additional features may exist individually or in any combination. For instance, various features discussed below in relation to one or more of the illustrated embodiments may be incorporated into any of the above-described aspects of the present disclosure alone or in any combination. The brief summary presented above is intended to familiarize the reader with certain aspects and contexts of embodiments of the present disclosure without limitation to the claimed subject matter. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Various aspects of this disclosure may be better understood upon reading the following detailed description and upon reference to the drawings in which: 
         FIG. 1  is a schematic block diagram of an electronic device including a transceiver, in accordance with an embodiment; 
         FIG. 2  is a perspective view of a notebook computer representing a first embodiment of the electronic device of  FIG. 1 ; 
         FIG. 3  is a front view of a hand-held device representing a second embodiment of the electronic device of  FIG. 1 ; 
         FIG. 4  is a front view of another hand-held device representing a third embodiment of the electronic device of  FIG. 1 ; 
         FIG. 5  is a front view of a desktop computer representing a fourth embodiment of the electronic device of  FIG. 1 ; 
         FIG. 6  is a front view and side view of a wearable electronic device representing a fifth embodiment of the electronic device of  FIG. 1 ; 
         FIG. 7  is a block diagram of multiple base stations communicating with the electronic device of  FIG. 1  that includes one radio frequency (RF) component chain (RF chain), in accordance with an embodiment; 
         FIG. 8  is a block diagram of multiple base stations communicating with the electronic device of  FIG. 1  that includes two RF chains, in accordance with an embodiment; 
         FIG. 9  is an example paging cycle diagram depicting a non-conflicting transmission pattern assigned to each of a first subscriber identification module (SIM) card and a second SIM card of the electronic device of  FIG. 1 , in accordance with an embodiment; 
         FIG. 10  is a flow chart illustrating a method for operating the electronic device of  FIG. 1  to communicate with the first base station and the second base station of  FIG. 7  or  FIG. 8  as part of a first example multi-SIM operation, in accordance with an embodiment; 
         FIG. 11  is a flow chart illustrating a method for operating the first base station of  FIG. 7  or  FIG. 8  to communicate with the electronic device of  FIG. 1  and the second base station of  FIG. 7  or  FIG. 8  as part of the first example multi-SIM operation, in accordance with an embodiment; 
         FIG. 12  is a flow chart illustrating a method for operating the second base station of  FIG. 7  or  FIG. 8  to communicate with the electronic device of  FIG. 1  and the first base station of  FIG. 7  or  FIG. 8  as part of the first example multi-SIM operation, in accordance with an embodiment; 
         FIG. 13  is a flow chart illustrating a method for operating the electronic device of  FIG. 1  to communicate with the first base station and the second base station of  FIG. 7  or  FIG. 8  as part of a second example multi-SIM operation, in accordance with an embodiment; 
         FIG. 14  is a flow chart illustrating a method for operating the first base station of  FIG. 7  or  FIG. 8  to communicate with the electronic device of  FIG. 1  as part of the second example multi-SIM operation, in accordance with an embodiment; 
         FIG. 15  is a flow chart illustrating a method for operating the second base station of  FIG. 7  or  FIG. 8  to communicate with the electronic device of  FIG. 1  as part of a second example multi-SIM operation, in accordance with an embodiment; 
         FIG. 16  is a flow chart illustrating a method for operating the electronic device of  FIG. 1  to communicate with the first base station and the second base station of  FIG. 7  or  FIG. 8  as part of a third example multi-SIM operation, in accordance with an embodiment; 
         FIG. 17  is a flow chart illustrating a method for operating the first base station of  FIG. 7  or  FIG. 8  to communicate with the electronic device of  FIG. 1  and the second base station of  FIG. 7  or  FIG. 8  as part of the third example multi-SIM operation, in accordance with an embodiment; 
         FIG. 18  is a flow chart illustrating a method for operating the second base station of  FIG. 7  or  FIG. 8  to communicate with the electronic device of  FIG. 1  and the first base station of  FIG. 7  or  FIG. 8  as part of the third example multi-SIM operation, in accordance with an embodiment; 
         FIG. 19  is a flow chart illustrating a method for operating the electronic device of  FIG. 1  to communicate with the first base station and the second base station of  FIG. 7  or  FIG. 8  as part of a fourth example multi-SIM operation, in accordance with an embodiment; 
         FIG. 20  is a flow chart illustrating a method for operating the first base station of  FIG. 7  or  FIG. 8  to communicate with the electronic device of  FIG. 1  as part of the fourth example multi-SIM operation, in accordance with an embodiment; 
         FIG. 21  is a flow chart illustrating a method for operating the second base station of  FIG. 7  or  FIG. 8  to communicate with the electronic device of  FIG. 1  as part of the fourth example multi-SIM operation, in accordance with an embodiment; 
         FIG. 22  is a flow chart illustrating a method for operating the electronic device of  FIG. 1  to communicate with the first base station and the second base station of  FIG. 7  or  FIG. 8  as part of a fifth example multi-SIM operation, in accordance with an embodiment; 
         FIG. 23  is a flow chart illustrating a method for operating an electronic device in accordance with any one of the five examples of  FIGS. 18-22  to communicate with the first base station and the second base station of  FIG. 7  or  FIG. 8 , in accordance with an embodiment; and 
         FIG. 24  is a flow chart illustrating a method for operating a base station in accordance with any one of the five examples of  FIGS. 18-22  to communicate with another base station and an electronic device of  FIG. 7  or  FIG. 8 , in accordance with an embodiment. 
     
    
    
     DETAILED DESCRIPTION 
     One or more specific embodiments of the present disclosure will be described below. These described embodiments are examples of the presently disclosed techniques. Additionally, in an effort to provide a concise description of these embodiments, all features of an actual implementation may not be described in the specification. It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers&#39; specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another. Moreover, it should be appreciated that such a development effort might be complex and time-consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure. 
     When introducing elements of various embodiments of the present disclosure, the articles “a,” “an,” and “the” are intended to mean that there are one or more of the elements. The terms “comprising,” “including,” and “having” are intended to be inclusive and mean that there may be additional elements other than the listed elements. Additionally, it should be understood that references to “one embodiment” or “an embodiment” of the present disclosure are not intended to be interpreted as excluding the existence of additional embodiments that also incorporate the recited features. 
     Various processes may be used to determine the paging cycle assignments. The processes may apply to a variety of electronic devices, including electronic devices that have one RF chain and/or electronic devices that have two or more RF chains. Some processes may use communication and cooperation between core networks (and thus between providers of the core networks), while additional or alternative processes use the electronic device as a way to facilitate the transmission of information between the core networks. 
     Various processes are disclosed that may adjust operation of user equipment (e.g., electronic devices). The processes may apply to a variety of electronic devices. These processes may be combined to bring certain advantages to operation, as is described herein. With the foregoing in mind, a general description of suitable electronic devices that may include such a transceiver is provided below. 
     Turning first to  FIG. 1 , an electronic device  10  according to an embodiment of the present disclosure may include, among other things, one or more of processor(s)  12 , memory  14 , nonvolatile storage  16 , a display  18 , input structures  22 , an input/output (I/O) interface  24 , a network interface  26 , a transceiver  28 , and a power source  29 . The various functional blocks shown in  FIG. 1  may include hardware elements (including circuitry), software elements (including computer code stored on a computer-readable medium) or a combination of both hardware and software elements. Furthermore, a combination of elements may be included in tangible, non-transitory, and machine-readable medium that include machine-readable instructions. The instructions may be executed by one or more processors and may cause the one or more processors to perform operations as described herein. It should be noted that  FIG. 1  is merely one example of a particular embodiment and is intended to illustrate the types of elements that may be present in the electronic device  10 . 
     By way of example, the electronic device  10  may represent a block diagram of the notebook computer depicted in  FIG. 2 , the handheld device depicted in  FIG. 3 , the handheld device depicted in  FIG. 4 , the desktop computer depicted in  FIG. 5 , the wearable electronic device depicted in  FIG. 6 , or similar devices. It should be noted that the processor(s)  12  and other related items in  FIG. 1  may be generally referred to herein as “data processing circuitry.” Such data processing circuitry may be embodied wholly or in part as software, firmware, hardware, or any combination thereof. Furthermore, the data processing circuitry may be a single contained processing module or may be incorporated wholly or partially within any of the other elements within the electronic device  10 . 
     In the electronic device  10  of  FIG. 1 , the processor(s)  12  may operably couple with the memory  14  and the nonvolatile storage  16  to perform various algorithms. Such programs or instructions executed by the processor(s)  12  may be stored in any suitable article of manufacture that includes one or more tangible, computer-readable media at least collectively storing the instructions or processes, such as the memory  14  and the nonvolatile storage  16 . The memory  14  and the nonvolatile storage  16  may include any suitable articles of manufacture for storing data and executable instructions, such as random-access memory, read-only memory, rewritable flash memory, hard drives, and optical discs. Also, programs (e.g., an operating system) encoded on such a computer program product may also include instructions executable by the processor(s)  12  to enable the electronic device  10  to provide various functionalities. 
     In certain embodiments, the display  18  may be a liquid crystal display (LCD), which may facilitate users to view images generated on the electronic device  10 . In some embodiments, the display  18  may include a touch screen, which may facilitate user interaction with a user interface of the electronic device  10 . Furthermore, it should be appreciated that, in some embodiments, the display  18  may include one or more organic light emitting diode (OLED) displays, or some combination of LCD panels and OLED panels. 
     The input structures  22  of the electronic device  10  may enable a user to interact with the electronic device  10  (e.g., pressing a button to increase or decrease a volume level). The I/O interface  24  may enable the electronic device  10  to interface with various other electronic devices, as may the network interface  26 . The network interface  26  may include, for example, one or more interfaces for a personal area network (PAN), such as a Bluetooth network, for a local area network (LAN) or wireless local area network (WLAN), such as an 802.11x Wi-Fi network, and/or for a wide area network (WAN), such as a 3 rd  generation (3G) cellular network, 4 th  generation (4G) cellular network, long term evolution (LTE) cellular network, long term evolution license assisted access (LTE-LAA) cellular network, or 5 th  generation (5G) cellular network. The network interface  26  may also include one or more interfaces for, for example, broadband fixed wireless access networks (WiMAX), mobile broadband Wireless networks (mobile WiMAX), asynchronous digital subscriber lines (e.g., ADSL, VDSL), digital video broadcasting-terrestrial (DVB-T) and its extension DVB Handheld (DVB-H), ultra-wideband (UWB), alternating current (AC) power lines, and so forth. 
     In some embodiments, the electronic device  10  communicates over the aforementioned wireless networks (e.g., Wi-Fi, WiMAX, mobile WiMAX, 4G, LTE, 5G, and so forth) using the transceiver  28 . The transceiver  28  may include circuitry useful in both wirelessly receiving and wirelessly transmitting signals (e.g., data signals, wireless data signals, wireless carrier signals, RF signals), such as a transmitter and/or a receiver. Indeed, in some embodiments, the transceiver  28  may include a transmitter and a receiver combined into a single unit, or, in other embodiments, the transceiver  28  may include a transmitter separate from a receiver. The transceiver  28  may transmit and receive RF signals to support voice and/or data communication in wireless applications such as, for example, PAN networks (e.g., Bluetooth), WLAN networks (e.g., 802.11x Wi-Fi), WAN networks (e.g., 3G, 4G, 5G, and LTE and LTE-LAA cellular networks), WiMAX networks, mobile WiMAX networks, ADSL and VDSL networks, DVB-T and DVB-H networks, UWB networks, and so forth. As further illustrated, the electronic device  10  may include the power source  29 . The power source  29  may include any suitable source of power, such as a rechargeable lithium polymer (Li-poly) battery and/or an alternating current (AC) power converter. 
     In certain embodiments, the electronic device  10  may take the form of a computer, a portable electronic device, a wearable electronic device, or other type of electronic device. Such computers may be generally portable (such as laptop, notebook, and tablet computers) and/or those that are generally used in one place (such as conventional desktop computers, workstations and/or servers). In certain embodiments, the electronic device  10  in the form of a computer may be a model of a MacBook®, MacBook® Pro, MacBook Air®, iMac®, Mac® mini, or Mac Pro® available from Apple Inc. of Cupertino, Calif. By way of example, the electronic device  10 , taking the form of a notebook computer  10 A, is illustrated in  FIG. 2  in accordance with one embodiment of the present disclosure. The notebook computer  10 A may include a housing or the enclosure  36 , the display  18 , the input structures  22 , and ports associated with the I/O interface  24 . In one embodiment, the input structures  22  (such as a keyboard and/or touchpad) may enable interaction with the notebook computer  10 A, such as starting, controlling, or operating a graphical user interface (GUI) and/or applications running on the notebook computer  10 A. For example, a keyboard and/or touchpad may facilitate user interaction with a user interface, GUI, and/or application interface displayed on display  18 . 
       FIG. 3  depicts a front view of a handheld device  10 B, which represents one embodiment of the electronic device  10 . The handheld device  10 B may represent, for example, a portable phone, a media player, a personal data organizer, a handheld game platform, or any combination of such devices. By way of example, the handheld device  10 B may be a model of an iPod® or iPhone® available from Apple Inc. of Cupertino, Calif. The handheld device  10 B may include the enclosure  36  to protect interior elements from physical damage and to shield them from electromagnetic interference. The enclosure  36  may surround the display  18 . The I/O interface  24  may open through the enclosure  36  and may include, for example, an I/O port for a hard wired connection for charging and/or content manipulation using a standard connector and protocol, such as the Lightning connector provided by Apple Inc. of Cupertino, Calif., a universal serial bus (USB), or other similar connector and protocol. 
     The input structures  22 , in combination with the display  18 , may enable user control of the handheld device  10 B. For example, the input structures  22  may activate or deactivate the handheld device  10 B, navigate a user interface to a home screen, present a user-editable application screen, and/or activate a voice-recognition feature of the handheld device  10 B. Other of the input structures  22  may provide volume control, or may toggle between vibrate and ring modes. The input structures  22  may also include a microphone to obtain a user&#39;s voice for various voice-related features, and a speaker to enable audio playback. The input structures  22  may also include a headphone input to enable input from external speakers and/or headphones. 
       FIG. 4  depicts a front view of another handheld device  10 C, which represents another embodiment of the electronic device  10 . The handheld device  10 C may represent, for example, a tablet computer, or one of various portable computing devices. By way of example, the handheld device  10 C may be a tablet-sized embodiment of the electronic device  10 , which may be, for example, a model of an iPad® available from Apple Inc. of Cupertino, Calif. 
     Turning to  FIG. 5 , a computer  10 D may represent another embodiment of the electronic device  10  of  FIG. 1 . The computer  10 D may be any computer, such as a desktop computer, a server, or a notebook computer, but may also be a standalone media player or video gaming machine. By way of example, the computer  10 D may be an iMac®, a MacBook®, or other similar device by Apple Inc. of Cupertino, Calif. It should be noted that the computer  10 D may also represent a personal computer (PC) by another manufacturer. The enclosure  36  may protect and enclose internal elements of the computer  10 D, such as the display  18 . In certain embodiments, a user of the computer  10 D may interact with the computer  10 D using various peripheral input devices, such as keyboard  22 A or mouse  22 B (e.g., input structures  22 ), which may operatively couple to the computer  10 D. 
     Similarly,  FIG. 6  depicts a wearable electronic device  10 E representing another embodiment of the electronic device  10  of  FIG. 1 . By way of example, the wearable electronic device  10 E, which may include a wristband  43 , may be an Apple Watch® by Apple Inc. of Cupertino, Calif. However, in other embodiments, the wearable electronic device  10 E may include any wearable electronic device such as, a wearable exercise monitoring device (e.g., pedometer, accelerometer, heart rate monitor), or other device by another manufacturer. The display  18  of the wearable electronic device  10 E may include a touch screen version of the display  18  (e.g., LCD, OLED display, active-matrix organic light emitting diode (AMOLED) display, and so forth), as well as the input structures  22 , which may facilitate user interaction with a user interface of the wearable electronic device  10 E. In certain embodiments, as previously noted above, each embodiment (e.g., notebook computer  10 A, handheld device  10 B, handheld device  10 C, computer  10 D, and wearable electronic device  10 E) of the electronic device  10  may include the transceiver  28 . 
     With the foregoing in mind,  FIG. 7  is a block diagram of a first example communication system  50 A that includes access network nodes, such as base stations  52  ( 52 A,  52 B) communicating via core networks  54  ( 54 A,  54 B) and radio access networks  56  ( 56 A,  56 B) with user equipment, such as an electronic device  10  that includes one radio frequency (RF) component chain (RF chain)  58 , according to embodiments of the present disclosure. It is noted that user equipment able to communicate with the access nodes may include any of various types of computer systems device which are mobile or portable and which performs wireless communications. Examples of user equipment any suitable portable electronic devices, mobile telephones, smart phones, portable gaming devices, laptops, wearable devices, or the like. In general, the term “UE” or “UE device” can be broadly defined to encompass any electronic, computing, and/or telecommunications device (or combination of devices) which is easily transported by a user and capable of wireless communication. 
     The term “base station” has the full breadth of its ordinary meaning, and at least includes a wireless communication station installed at a fixed location and used to communicate as part of a wireless telephone system or radio system. The base stations  52  and the electronic device  10  may be configured to communicate over the transmission medium using any of various radio access technologies (RATs), also referred to as wireless communication technologies, or telecommunication standards, such as Global System for Mobile Communications (GSM), Universal Mobile Telecommunications Service (UMTS) (e.g., associated with wide-band Code-Division Multiple Access (WCDMA) or time division (TD) short-band Code-Division Multiple Access (SCDMA) air interfaces), LTE, LTE-Advanced (LTE-A), 5G New Radio (5G NR), High Speed Packet Access (HSPA), 3GPP2 CDMA2000 (e.g., real-time text (1×RTT), Evolution-Data Optimized (1×EV-DO), High Rate Packet Data (HRPD), evolved HRPD (eHRPD)), or the like. Note that if a respective base station of the base stations  52  is implemented in the context of LTE, it may alternately be referred to as an “eNodeB” or “eNB”. Note that if a respective base station of the base stations is implemented in the context of 5G NR, it may alternately be referred to as “gNodeB” or “gNB”. 
     Thus, while base stations  52  may act as a “serving cell” for electronic devices as illustrated in  FIG. 7 , an electronic device  10  may also be capable of receiving signals from (and possibly within communication range of) one or more other cells (which might be provided by base stations  52  and/or any other base stations), which may be referred to as “neighboring cells.” Such cells may also be capable of facilitating communication between user devices and/or between user devices and the network. Such cells may include “macro” cells, “micro” cells, “pico” cells, and/or cells which provide any of various other granularities of service area size. 
     In the illustrated embodiment, the RF chain  58  includes a receiver circuitry  60  separate from a transmitter circuitry  62 . The RF chain  58  may be included in the transceiver  28  and may be coupled to an antenna. In some embodiments, the receiver circuitry  60  and the transmitter circuitry  62  may be combined into a single unit within the transceiver  28 . Further, the various functional blocks shown in  FIG. 7  may include hardware elements (including circuitry), software elements (including computer code stored on a computer-readable medium) or a combination of both hardware and software elements. It should also be noted that  FIG. 7  is merely one example of a particular implementation and is intended to illustrate the types of components that may be present. As such, functional blocks may be added or omitted, and their arrangement within the first example communication system  50 A may be modified. 
     The electronic device  10  may include SIM cards  64  ( 64 A,  64 B) and may be cell phone or other user equipment that communicates via provided networks (e.g., the core networks  54 ). In particular, each SIM card  64  may correspond to a respective core network  54  that the electronic device  10  uses to send and/or receive data. Each base station  52  may generate and/or maintain a respective core network  54  that interfaces with the electronic device  10  via a respective radio access network  56 . A control system  66  of the electronic device  10  may generate control signals to control incoming and outgoing communications, and may use information stored on each SIM card  64  for encryption and/or decryption operations. Each base station  52  may be an electronic device (e.g., similar to electronic device  10 ), and thus may include memory  14 , processors  12 , network interfaces  26 , displays  18 , I/O interfaces  24 , or the like (e.g., as shown in  FIG. 1 ), for performing processing operations associated with maintaining the communication network and for communicating with the electronic device  10 . 
     The core networks  54  may be considered backbone networks. In this way, each core network  54  may interconnect various pieces of its network, providing a data transmission path for the exchange of information between transmitting circuitry and receiving circuitry. Examples of core networks  54  may include wireless networks, Ethernet networks, or the like. The radio access networks  56  may manage terminals (e.g., including the electronic device  10 ) to facilitate communicating with the electronic device  10 . The radio access networks  56  may use different transmission frequencies or transmission bands (e.g., frequency bands) when exchanging data with the SIM cards  64  and/or the electronic device  10 . Examples of radio access networks  56  include GSM radio access network (GRAN, GERAN), UMTS radio access network (UTRAN), and Long Term Evolution (LTE) radio access network (E-UTRAN). In alternative or additional embodiments, the electronic device  10  may directly communicate with the core network  54  without the use of a radio access network  56 . In some cases, the radio access network  56  (e.g., radio access network  56 A, radio access network  56 B) may receive preferred transmission bands from the electronic device  10  and may select a transmission frequency or a transmission band from the preferred transmission bands, which may include one or more frequencies as part of a frequency range. The electronic device  10  may, in turn, receive the transmission band or transmission frequency form the radio access network  56  and use the transmission band or transmission frequency in communicating with the radio access network  56 . In some cases, the electronic device  10  may receive a transmission band from the radio access network  56  and select a transmission frequency from the transmission band. 
     During operation of the first example communication system  50 A, the electronic device  10  communicates with the base stations  52  via the radio access network  56  and/or the core network  54  to receive or transmit data, such as data associated with receiving or transmitting a phone call, a text message, browsing the internet, or the like. To do so, the receiver circuitry  60  may receive an input signal from the base station  52  that may be processed and/or modified. The input signal may be wirelessly received via an antenna operably connected to the receiver circuitry  60 . The input signal may include data transmitted via a carrier waveform. The carrier waveform may be modulated to store the data, and thus data may be retrieved from the input signal for use by the electronic device. In some cases, the electronic device  10  may generate data for transmission to the base station  52 . The transmitter circuitry  62  may use similar but reverse modulation and amplification operations as the receiver circuitry  60  to transmit the generated data as a RF signal to the base station  52  via the radio access network  56  and/or the core network  54 . 
     The receiver circuitry  60  may include circuitry to use for processing of the input signal. For example, the receiver circuitry  60  may include a low noise power amplifier (LNA), an analog-to-digital converter (ADC), a baseband filter, or the like, to use to process the input signal. For example, the LNA may receive a relatively low-power signal from the antenna and increase its magnitude without significantly increasing noise of the input signal, generating a modified input signal. The receiver circuitry  60  may sometimes regulate power supplied to the LNA according to average power tracking of the modified input signal or envelope tracking of the input signal. Signals output from the LNA or other circuitry of the receiver circuitry  60  may be transmitted to an ADC for additional processing. For example, the ADC may use any suitable conversion method to convert the output into digital data usable by the electronic device  10 . In some embodiments, a baseband filter may receive an output from the ADC and perform additional processing on the initial data recovered from the carrier waveform. The transmitter circuitry  62  may work in a similar but reverse fashion. For example, data to be transmitted to one of the base stations  52  may be modulated onto a carrier signal, amplified for transmission to one of the radio access networks  56 , and ultimately received by one of the base stations  52  for use. 
     The SIM cards  64  may each include circuitry that stores an identity number (e.g., international mobile subscriber identity (IMSI)) used to identify the respective SIM card from other SIM cards. A base station  52  may use the identity number to verify that the SIM card  64  has permission or an authority to receive information via a corresponding core network  54  and/or radio access network  56 . For example, the first SIM card  64 A may store an identity number that the first base station  52 A uses to verify that the first SIM card  64 A is authorized to communicate with the first base station  52 A via the core network  54 A. Since each SIM card  64  corresponds to a different network, each SIM card  64  may include respective identity numbers to identify that particular SIM card  64  to the corresponding base station  52 . 
     The SIM cards  64  may operate according to a 3rd Generation Partnership Project (3GPP)-based communication standard. As part of the communication standard and/or other communication standards, SIM cards  64  may sometimes operate in an RRC_IDLE/RRC_INACTIVE state and may sometimes operate in an RRC_CONNECTED state, wherein RRC refers to radio resource control (RRC) parameters defined in some standards. While one of the SIM cards (e.g.,  64 A) is in the RRC_CONNECTED state, data may be transmitted between the electronic device  10  and one of the base stations  52 . However, while this happens, the other SIM card (e.g.,  64 B) may not detect paging notifications. A paging notification may be a request for the electronic device  10  to communicatively couple to and communicate with the base station  52  that originated the paging notification. When the SIM cards  64  are both operating in the RRC_IDLE/RRC_INACTIVE state, either of the SIM cards  64  may detect a paging notification from one of the base stations  52 . 
       FIG. 7  depicts one RF chain  58 . However, sometimes multiple RF chains  58  are included in the electronic device  10 . It is noted that, in some embodiments, RF chains  58  may include multiple different receiver circuitries  60  (e.g., each corresponding to a respective SIM card  64 ) but share a transmitter circuitry  62 .  FIG. 8  is a block diagram of a second example communication system  50 B that includes multiple base stations  52  communicating with an electronic device  10  that includes two RF chains  58 , according to embodiments of the present disclosure. The various functional blocks shown in  FIG. 8  may include hardware elements (including circuitry), software elements (including computer code stored on a computer-readable medium), or a combination of both hardware and software elements. It should also be noted that  FIG. 8  is merely one example of a particular implementation and is intended to illustrate the types of components that may be present. As such, functional blocks may be added or omitted, and their arrangement within the second example communication system  50 B may be modified. 
     Each RF chain  58  may correspond to a particular network provided by a particular base station  52 , a particular core network  54 , and/or a particular radio access network  56 . The first core network  54 A, the first base station  52 A, and the first radio access network  56 A may correspond to the first SIM card  64 A and the first RF chain  58 A. The second base station  52 B, the second core network  54 B, and the second radio access network  56 B may correspond to the second SIM card  64 B and the second RF chain  58 B. 
     While some electronic devices may provide some functionality to operate multiple SIM cards  64  as described above, this does not guarantee suitable operation of the multiple SIM cards  64 . In particular, sometimes these electronic devices may miss a paging notification transmitted for one of the SIM cards  64 . As described above, another common problem is “device unavailability,” which may affect an electronic device  10  when one of the SIM cards  64  has an active session since any other SIM cards  64  are unusable. 
     The presently described systems, devices, and methods may address these shortcomings and enable increased and more flexible usage of multiple SIM cards  64 . In particular, as described herein, the manner in which paging notifications are issued may be adjusted to reduce or eliminate collisions. That is, a base station  52  (e.g., second base station  52 B) may adjust a paging cycle assignment based on a paging cycle assignment of another base station  52  (e.g., first base station  52 A) such that the issued paging notifications are non-conflicting transmissions (e.g., do not collide in the time domain). In particular, the paging cycle assignments may control when the first SIM card  64 A and the second SIM card  64 B are each operated on or off. In this way, the respective SIM cards  64  may be operated in a non-conflicting manner, such that more than base stations  52  are not attempting to communicate to the respective SIM card  64  at a time. 
     To help explain,  FIG. 9  is an example paging cycle diagram  74  depicting a non-conflicting transmission pattern (e.g., row  76 A, row  76 B) assigned to each of the first SIM card  64 A and a second SIM card  64 B, according to embodiments of the present disclosure. Each SIM card  64  may be assigned a paging cycle via a paging cycle assignment. Each paging cycle may include alternating transmission periods  78  (e.g., “on” periods) and idle periods  80  (e.g., “off” periods). The RF chains  58  may receive data from the core networks  54  during the transmission period  78  (and operate one of the SIM cards  64  in the RRC_CONNECTED state), but may be idle and not able to receive data during the idle period  80  (and operate one of the SIM cards  64  in the RRC_IDLE/RRC_INACTIVE state). In some embodiments, when an RF chain  58  is idle and not in use (e.g., during the idle period  80 , when the corresponding of the SIM cards  64  is in the RRC_IDLE/RRC_INACTIVE state), power may not be supplied to the RF chain  58  or power supplied to the RF chain  58  may be reduced, realizing power savings for the electronic device  10 . It is noted that, in some cases, the idle periods  80  are generated in response to, coincide with, are contained within, or include connected discontinuous receive mode (C-DRX) gaps. The C-DRX gaps may signal to the electronic device  10  when to switch operating frequencies of the RF chain  58  to communicate with a different core network  54  during a transmission period  78 . The C-DRX gaps may corresponding to idle periods  80  of a paging cycle assignment, and thus map be considered transmission gaps. When entering a respective idle period  80  of a first paging cycle assignment, if a second paging cycle assignment enters a transmission period  78 , the electronic device  10  may switch between use of the first SIM card  64 A and use of the second SIM card  64 B. In some embodiments, when a paging cycle assignment is in an idle period  80 , the electronic device  10  may reduce power supplied (e.g., relatively less power, zero power) to at least a portion of the RF chain  58  circuitry and/or the SIM card  64  assigned the paging cycle assignment. 
     When paging cycle assignments (e.g., corresponding to different SIM cards  64 ) conflict, communications between the electronic device  10  and the base stations  52  may be missed when an incoming transmission overlaps with a current ongoing transmission or reception operation of the electronic device  10 . However, according to the present embodiments, a base station  52  may select a paging cycle assignment to organize conflicting transmission patterns into non-conflicting transmission patterns (e.g., by assigning the paging cycle to not overlap with another paging cycle assignment). When the electronic device  10  operates the SIM cards  64  in accordance with non-conflicting paging cycle assignments, the electronic device  10  reduces or eliminates a likelihood of missing data to be transmitted between a core network  54  and a corresponding SIM card  64  since a likelihood of conflicting transmission patterns is reduced or eliminated. 
     Thus, at least some of the presently disclosed embodiments are directed processes for determining the paging cycle assignments. The processes may apply to a variety of electronic devices, including electronic devices that have one RF chain  58  and electronic devices that have two or more RF chains  58  (as indicated by “No. RF Component Chain” of Table 1 below). Some processes may use communication and cooperation between core networks  54  (as indicated by “Direct Core Network Intercommunication” of Table 1), and thus between providers of the core networks  54 , while some processes use the electronic device  10  to facilitate the transmission of information between the core networks  54 . Furthermore, some processes use the radio access networks  56  to select a transmission band or transmission frequency (as indicated by “Radio Access Network Selecting Transmission Frequency” of Table 1). These processes may be combined to bring certain advantages to operation, as is described herein. Table 1 summarizes example combinations and may be useful to reference as discussion continues into  FIG. 10  through  FIG. 23 . 
     
       
         
           
               
               
               
               
               
             
               
                 TABLE 1 
               
               
                   
               
               
                   
                   
                   
                 Radio Access 
                   
               
               
                 Embodi- 
                   
                 Direct Core 
                 Network 
               
               
                 ment 
                 No. RF 
                 Network 
                 Selecting 
               
               
                 Number 
                 Component 
                 Intercom- 
                 Transmission 
                 Supported 
               
               
                 (No.) 
                 Chain 
                 munication 
                 Frequency 
                 RRC States 
               
               
                   
               
             
            
               
                 1 
                 1 
                 Yes 
                 No 
                 IDLE 
               
               
                 2 
                 1 
                 No 
                 No 
                 IDLE 
               
               
                 3 
                 2 
                 Yes 
                 Yes 
                 IDLE, 
               
               
                   
                   
                   
                   
                 CONNECTED 
               
               
                 4 
                 2 
                 No 
                 Yes 
                 IDLE, 
               
               
                   
                   
                   
                   
                 CONNECTED 
               
               
                 5 
                 1 
                 No 
                 Yes 
                 CONNECTED 
               
               
                   
               
            
           
         
       
     
     To summarize, in the first embodiment (e.g., Embodiment No. 1 from Table 1), a single RF chain  58  is used to switch between two transmission frequencies corresponding to two SIM cards  64 . The core networks  54  exchange information related to the electronic device  10  to generate non-conflicting paging cycle assignments for the different SIM cards  64 . In the first embodiment, the radio access networks  56  may not necessarily select a transmission frequency (unless the first embodiment is combined with the fifth embodiment), wherein the selected transmission frequency may enable communication using the second core network  54 B without conflict with communications using the first core network  54 A. Also, the first embodiment may be used when the SIM cards  64  are in an RRC_IDLE/RRC_INACTIVE state but not necessarily when the SIM cards  64  are in an RRC_CONNECTED state. 
     In the second embodiment (e.g., Embodiment No. 2 from Table 1), a single RF chain  58  is used to switch between two transmission frequencies corresponding to two SIM cards  64 , and upon registration to the second core network  54 B, the electronic device may indicate that it has an active first SIM card  64 A and may provide the paging cycle assignment for the first SIM card  64 A to the second base station  52 B. The second core network  54 B may generate a paging cycle assignment for the second SIM card  64 B using the paging cycle assignment for the first SIM card  64 A as to generate a non-conflicting paging cycle assignment for the second SIM card  64 B. In this way, the second embodiment may not include core networks  54  that exchange information to generate non-conflicting paging cycle assignments for the different SIM cards  64  and the radio access networks  56  may not necessarily select a transmission frequency (unless the first embodiment is combined with the fifth embodiment). It is noted that the second embodiment may be used when the SIM cards  64  are in an RRC_IDLE/RRC_INACTIVE state but not necessarily when the SIM cards  64  are in an RRC_CONNECTED state. 
     In the third embodiment (e.g., Embodiment No. 3 from Table 1), two RF chains  58  are used to substantially simultaneously monitor two frequencies, and thus transmissions from two radio access networks  56 . The electronic device  10  may indicate to both base stations  52  that it has multiple SIM cards  64  via the core networks  54 . The electronic device  10  may use non-access stratum (NAS) signaling to indicate to the base stations  52  the multi-SIM capability of the electronic device  10 , where the NAS is a functional layer between telecommunication protocol stacks of the core networks  54  and the electronic device  10 . The electronic device  10  may also indicate to the base stations  52  preferred transmission bands or transmission frequencies. The radio access networks  56  may coordinate to redirect the electronic device  10  to either a first frequency or a second frequency that the electronic device  10  is able to monitor simultaneous based on the preferred transmission bands or transmission frequencies. The first frequency and the second frequency may be defined by hardware parameters of the RF chains  58  and/or SIM cards  64  of the electronic device  10  (e.g., a combination of circuitry of a RF chain  58  may set the first or second frequency). It is noted that in the third embodiment, the core networks  54  directly communicate (e.g., directly intercommunicate) with each other to determine non-conflicting paging cycle assignments, and the third embodiment supports both an RRC_IDLE/RRC_INACTIVE state and an RRC_CONNECTED state. 
     In the fourth embodiment (e.g., Embodiment No. 4 from Table 1), two RF chains  58  are used to substantially simultaneously monitor two frequencies, and thus transmissions from two radio access networks  56 . The electronic device  10  may indicate to both base stations  52  that it has multiple SIM cards  64  via the radio access networks  56 . The electronic device  10  may use access stratum (AS) signaling to indicate to the base stations  52  the multi-SIM capability of the electronic device  10 , where the AS is a functional layer between telecommunication protocol stacks of the radio access networks  56  and the electronic device  10 . The electronic device  10  may also indicate to the base stations  52  preferred transmission bands or transmission frequencies. The radio access networks  56  may coordinate to redirect the electronic device  10  to either a first frequency or a second frequency that the electronic device  10  is able to monitor simultaneous based on the preferred transmission bands or transmission frequencies. The first frequency and the second frequency, as well as the preferred transmission bands or transmission frequencies, may be defined by hardware parameters of the RF chains  58  and/or SIM cards  64  of the electronic device  10  (e.g., a combination of circuitry of a RF chain  58  may set the first or second frequency). It is noted that in the fourth embodiment, the core networks  54  do not communicate (e.g., directly intercommunicate) with each other to determine non-conflicting paging cycle assignments and instead use signals from the electronic device  10  to determine non-conflicting paging cycle assignments. The fourth embodiment supports both an RRC_IDLE/RRC_INACTIVE state and an RRC_CONNECTED state. 
     In the fifth embodiment (e.g., Embodiment No. 5 from Table 1), a single RF chain  58  is used to switch between two transmission frequencies corresponding to two SIM cards  64 . The second radio access network  56 B may generate transmission/reception gaps, such as connected mode DRX, for the second SIM card  64 B using the paging cycle assignment for the first SIM card  64 A as to generate non-conflicting reception opportunities. In this way, the second embodiment may not include core networks  54  that exchange information to generate non-conflicting paging cycle assignments for the different SIM cards  64 . In the fifth embodiment, the radio access networks  56  may select a transmission frequency and may be used when the SIM cards  64  are in an RRC_CONNECTED state but not necessarily when the SIM cards  64  are in an RRC_IDLE/RRC_INACTIVE state. 
     Certain combinations of the above examples may be useful too. For example, the second example and the fourth example may co-exist and co-manage the electronic device  10 . In this way, the core networks  54  may operate to generate non-conflicting paging cycle assignments while the radio access networks  56  may operate to select transmission bands or transmission frequencies in accordance with preferences of the electronic device  10 . The fifth example and the fourth example may also be combined if for any reason an electronic device  10  is unable to listen simultaneously to a particular transmission frequency combination. When determining combinations of the examples, care may be taken to combine operations that supports both an “IDLE” state (e.g., RRC_IDLE state and/or RRC_INACTIVE state of SIM card  64 ) and a “CONNECTED” state (e.g., RRC_CONNECTED state of SIM card  64 ). This may be shown in the last column of the Table 1 (e.g., “Supported States”). For example, the second example may have a relatively low architectural impact but may be combined with the fifth example to support each of the SIM cards  64  operational states. It is noted that if the electronic device  10  has two RF chains  58 , the fourth example may have the least architectural impact of the five examples and may support each operational state of the SIM cards  64 . Other combinations include the first example and the fifth example, and/or the second example and the fifth example. With the forgoing in mind, the discussion now turns to more detailed description of the five examples described in Table 1. 
     Embodiment No. 1: One RF Chain with Core Network Intercommunication 
       FIG. 10 ,  FIG. 11 , and  FIG. 12  describe processes that use intercommunication between the core networks  54  to enable paging cycle assignment and registration to the SIM cards  64 . Turning now to  FIG. 10 , a flow chart illustrates a method  92  for operating the electronic device  10  to communicate with the first base station  52 A and the second core network  54 B as part of a first example multi-SIM operation (e.g., Embodiment No. 1 from Table 1). In the case when the electronic device  10  is not able to listen substantially simultaneously to two or more frequencies (or frequency bands) at the same time, the method  92  may be used to tune between a first transmission frequency corresponding to the first core network  54 A and a second transmission frequency corresponding to the second core network  54 B. In this first example, the core networks  54  exchange information related to the electronic device  10  and generate paging cycle assignments that do not overlap (e.g., conflict) in the time domain. In this way, conflicting transmission or reception durations are reduced and/or eliminated. Thus, it may be said that the burden of generating non-conflicting paging cycle assignments is on the core networks  54  for the first example multi-SIM operation (e.g., Embodiment No. 1 from Table 1). 
     In some embodiments, the method  92  may be implemented at least in part by executing instructions stored in a tangible, non-transitory, computer-readable medium, such as the memory  14 , using processing circuitry, such as processors  12 , or the like. However, as described herein, the method  92  is described as being performed by the electronic device  10 . It is noted that although depicted and/or described in a particular order, many operations described herein may be performed in any suitable order, and some operations may be skipped altogether. 
     Keeping this in mind, at block  94 , the electronic device  10  may register to the first core network  54 A using the first SIM card  64 A to register to the first base station  52 A. To do so, the electronic device  10  may obtain an identity number, such as an IMSI, from the first SIM card  64 A, and may transmit the identity number to the first core network  54 A. Transmitting the identity number from the first SIM card  64 A enables the electronic device  10  to request access and authentication to the first base station  52 A. In some embodiments, the electronic device  10  may pass an additional identity number, such as a personal identification number (PIN), to the first SIM card  64 A before the first SIM card  64 A reveals the identity number to the electronic device  10 . The first base station  52 A may search the memory  14  to determine an encryption key corresponding to the identity number of the first SIM card  64 A. The electronic device  10  may use the encryption key to encrypt and/or decrypt future communications with the first base station  52 A. Registering to the first base station  52 A may permit the electronic device  10  access to information transmitted via the first core network  54 A and/or the first radio access network  56 A. This process may be repeated for registration to the second core network  54 B. 
     At block  96 , the electronic device  10  may activate the second SIM card  64 B and, at block  98 , may register to the second core network  54 B using the second SIM card  64 B to register to the second base station  52 B. Activating the second SIM card  64 B may permit the electronic device  10  to retrieve the identity number from the second SIM card  64 B for use in registration with the second base station  52 B. Similar to the first base station  52 A at block  94 , the second core network  54 B may determine an authentication key to use in encryption and/or decryption operations with the electronic device  10 . In some embodiments, some credentials of the first base station  52 A are shared with the second base station  52 B to permit the second SIM card  64 B and the electronic device  10  access to information transmitted via the second core network  54 B and/or the second radio access network  56 B. 
     At block  100 , the electronic device  10  may receive the respective paging cycle assignments for the first SIM card  64 A corresponding to the first core network  54 A and for the second SIM card  64 B corresponding to the second core network  54 B. The electronic device  10  may receive the paging cycle assignments after the electronic device  10  registers with the second base station  52 B. As described further with respect to  FIG. 11  and/or  FIG. 12 , the paging cycle assignment for the first core network  54 A is determined based on the paging cycle assignment for the second core network  54 B, and vice versa, for the first example multi-SIM operation (e.g., Embodiment No. 1 from Table 1). For each example of Table 1, the paging cycle assignments may be communicated between components of the communication networks  50  by indication of a period or by implementation of a single frequency network (SFN). If using a single frequency network, scanning operations may be performed by the electronic device  10  to determine a frequency and/or gain direction to use when communicating with the core network  54 . The scanning operations may determine the frequency and/or gain direction based on relative signal strengths detected during the scanning. In some embodiments, the electronic device  10  may initially communicate with the core networks  54  according to an initial and/or a default paging cycle assignment until the electronic device  10  receives the paging cycle assignments from the first base station  52 A and/or the second base station  52 B. 
     In response to receiving the page cycle assignments, the electronic device  10 , at block  102 , may communicate with the first base station  52 A or with the second base station  52 B based at least in part on the paging cycle assignment. Communication with the first base station  52 A may include sending authentication or encryption data stored on the first SIM card  64 A (e.g., one or more keys to use in decrypting or encrypting of data exchanged between the electronic device  10  and the first base station  52 A), similar to how communication with the second base station  52 B may include sending data stored on the second SIM card  64 B. In this way, the electronic device  10  may communicate with the first base station  52 A using the paging cycle assignment attributed to the first SIM card  64 A and communicate with the second base station  52 B using the paging cycle assignment attributed to the second SIM card  64 B as a way to reduce or eliminate a likelihood of conflicting data transmissions (e.g., reducing occurrences of paging cycle overlap) between the electronic device  10  and the second core network  54 B. 
     To elaborate on how the first base station  52 A may interact with the electronic device  10  and/or the second base station  52 B,  FIG. 11  is a flow chart illustrating a method  124  for operating the first base station  52 A to communicate with the electronic device  10  and the second base station  52 B as part of the first example multi-SIM operation (e.g., Embodiment No. 1 from Table 1). In some embodiments, the method  124  may be implemented at least in part by executing instructions stored in a tangible, non-transitory, computer-readable medium, such as the memory  14 , using processing circuitry, such as processors  12 , or the like. However, as described herein, the method  124  is described as being performed by the first base station  52 A. It is noted that although depicted and/or described in a particular order, many operations described herein may be performed in any suitable order, and some operations may be skipped altogether. 
     At block  126 , the first base station  52 A may register to the first SIM card  64 A of the electronic device  10 . Similar to operations described at block  94  of method  92  (e.g.,  FIG. 10 ), the registration process includes verifying identity and permission of the first SIM card  64 A to confirm that the electronic device  10  is authorized to access data of the first core network  54 A and/or the first base station  52 A. The first base station  52 A may authenticate the first SIM card  64 A using one or more keys transmitted from the first SIM card  64 A. The first base station  52 A may use the keys to verify that the electronic device  10  has an authority to access data of the first core network  54 A. Registering to the first base station  52 A may permit the electronic device  10  access to information transmitted via the first core network  54 A. 
     When the first base station  52 A is registered to the first SIM card  64 A, at block  128 , the first base station  52 A may transmit information associated with the first SIM card  64 A, first core network  54 A and/or the electronic device  10  to the second base station  52 B. For example, the first base station  52 A may transmit paging cycle preferences to the second base station  52 B. The second base station  52 B may use the paging cycle assignment of the first core network  54 A when assigning a paging cycle to the second core network  54 B, such as to determine a non-conflicting paging cycle assignment relative to the paging cycle preferences of the first core network  54 A. 
     At block  130 , the first base station  52 A may receive information associated with the second SIM card  64 B, the second core network  54 B, and/or the electronic device  10  from the second base station  52 B. The information from the second base station  52 B may include paging cycle preferences for data sent via the second core network  54 B. The first base station  52 A may consider the preferences from the second base station  52 B when determining a paging cycle to use to communicate with the electronic device  10  via the first core network  54 A. 
     Thus, at block  132 , the first base station  52 A may assign a paging cycle for the first SIM card  64 A corresponding to the first core network  54 A based on the information from the second base station  52 B, and may transmit the paging cycle assignment to the electronic device  10 . After the electronic device  10  implements the paging cycle assignment for the first core network  54 A, the first base station  52 A may, at block  134 , communicate with the electronic device  10  using the first core network  54 A according to the paging cycle assignment. 
     To elaborate on how the second base station  52 B may interact with the electronic device  10  and/or the first base station  52 A,  FIG. 12  is a flow chart illustrating a method  146  for operating the second base station  52 B to communicate with the electronic device  10  and the first base station  52 A as part of the first example multi-SIM operation (e.g., Embodiment No. 1 from Table 1). In some embodiments, the method  146  may be implemented at least in part by executing instructions stored in a tangible, non-transitory, computer-readable medium, such as the memory  14 , using processing circuitry, such as processors  12 , or the like. However, as described herein, the method  146  is described as being performed by the second base station  52 B. It is noted that although depicted and/or described in a particular order, many operations described herein may be performed in any suitable order, and some operations may be skipped altogether. 
     At block  148 , the second base station  52 B may receive information from the first base station  52 A associated with the first SIM card  64 A, the first core network  54 A, and/or the electronic device  10 . The information from the first base station  52 A may include credentials of the first SIM card  64 A to verify permission of the electronic device  10  to communicate with the second core network  54 B. 
     At block  150 , the second base station  52 B may register the second SIM card  64 B of the electronic device  10 . Similar to operations described at block  98  of method  92  (e.g.,  FIG. 10 ), the registration process includes verifying identity and permission of the second SIM card  64 B to confirm that the electronic device  10  is authorized to access data of the second core network  54 B and/or the second base station  52 B. To register to the second SIM card  64 B, the second core network  54 B may authenticate the second SIM card  64 B using one or more keys from the second SIM card  64 B and transmitted by the electronic device  10 . The second core network  54 B may use the keys to verify that the electronic device  10  has an authority to access data of the second core network  54 B. Registering to the second base station  52 B may permit the electronic device  10  access to information transmitted via the second core network  54 B. The second base station  52 B may reference information from the first base station  52 A (e.g., credential of the first SIM card  64 A) when registering the second SIM card  64 B. It is noted that each example described herein may authenticate the second SIM card  64 B based on one or more credentials or information associated with the first SIM card  64 A. 
     At block  152 , the second base station  52 B may transmit information associated with the second SIM card  64 B, the second core network  54 B, and/or the electronic device  10  to the first base station  52 A. The information from the second base station  52 B may include paging cycle preferences for the second core network  54 B. As described above with respect to block  132  of method  124  (e.g.,  FIG. 11 ), at block  154 , the first base station  52 A may use the paging cycle preferences for the second core network  54 B to determine a non-conflicting paging cycle assignment for the first core network  54 A to use when communicating with the electronic device  10 . After assignment, the second base station  52 B may transmit the paging cycle assignment to the electronic device  10 . After the electronic device  10  implements the paging cycle assignment for the second core network  54 B, the second base station  52 B may, at block  156 , communicate with the electronic device  10  using the second core network  54 B according to the paging cycle assignment. 
     Embodiment No. 2: One RF Chain without Core Network Intercommunication 
       FIG. 13 ,  FIG. 14 , and  FIG. 15  describe processes that use the electronic device  10  as a communicative mediator between the core networks  54  to enable assignment of non-conflicting paging cycles without using direct intercommunication between the core networks  54 . Turning now to  FIG. 13 , a flow chart illustrates a method  168  for operating the electronic device  10  to communicate with the first base station  52 A and the second core network  54 B as part of a second example multi-SIM operation (e.g., Embodiment No. 2 from Table 1). In the case when the electronic device  10  is not able to listen substantially simultaneously to two or more frequencies, the method  168  may be used to tune between a first transmission frequency corresponding to the first SIM card  64 A and a second transmission frequency corresponding to the second SIM card  64 B. In this second example, the electronic device  10  facilitates exchange of information related to the first base station  52 A to the second core network which generates the paging cycle assignment for the second core network  54 B based on the page cycle assignment for the first base station  52 A. In this way, conflicting transmission or reception durations are reduced and/or eliminated. Thus, it may be said that the burden of generating non-conflicting paging cycle assignments is on the second core network  54 B for the second example multi-SIM operation (e.g., Embodiment No. 2 from Table 1). It is noted that although depicted and/or described in a particular order, many operations described herein may be performed in any suitable order, and some operations may be skipped altogether. 
     In some embodiments, the method  168  may be implemented at least in part by executing instructions stored in a tangible, non-transitory, computer-readable medium, such as the memory  14 , using processing circuitry, such as processors  12 , or the like. However, as described herein, the method  168  is described as being performed by the electronic device  10 . 
     At block  170 , the electronic device  10  may register to the first core network  54 A using the first SIM card  64 A to register to the first base station  52 A. Operations performed at block  94  of  FIG. 10  may be performed at block  170  of  FIG. 13 , and thus are incorporated herein. Registering to the first base station  52 A may permit the electronic device  10  access to information transmitted via the first core network  54 A and/or the first radio access network  56 A. 
     At block  172 , the electronic device  10  may receive the paging cycle assignment for the first SIM card  64 A corresponding to the first core network  54 A from the first base station  52 A. In response to the first base station  52 A registering the first SIM card  64 A, the first base station  52 A may determine the paging cycle assignment corresponding to the first core network  54 A without consideration for the paging cycle assignment of the second core network  54 B. 
     At block  174 , the electronic device  10  may activate the second SIM card  64 B and, at block  176 , may register to the second core network  54 B using the second SIM card  64 B to register to the second base station  52 B. Operations performed at block  96  and at block  98  of  FIG. 10  may be performed at block  174  and block  176  of  FIG. 13 , and thus are incorporated herein. Registering to the second base station  52 B may permit the electronic device  10  access to information transmitted via the second core network  54 B and/or the second radio access network  56 B. Furthermore, at block  174 , the electronic device  10  may transmit the paging cycle assignment associated with the first SIM card  64 A and corresponding to the first core network  54 A to the second base station  52 B. In this way, the electronic device  10  may facilitate information exchange between the base stations  52  without the base stations  52  directly communicating. The second base station  52 B may determine a paging cycle assignment for the second SIM card  64 B based on the paging cycle assignment associated with the first SIM card  64 A. 
     After the second base station  52 B determines the paging cycle assignment for the second SIM card  64 B, at block  178 , the electronic device  10  may receive the paging cycle assignment for the second SIM card  64 B from the second base station  52 B. Using the paging cycle assignment for the first SIM card  64 A and the paging cycle assignment for the second SIM card  64 B, the electronic device  10  may, at block  180 , communicate with the first base station  52 A or the second base station  52 B. Because the paging cycle assignment for the second SIM card  64 B is generated based on the paging cycle assignment for the first SIM card  64 A, the paging cycles used by the electronic device  10  to communicate with each core network  54  may be non-conflicting and reduce or eliminate a likelihood of conflicting transmission patterns happening. 
     To elaborate on how the first base station  52 A may interact with the electronic device  10 ,  FIG. 14  is a flow chart illustrating a method  182  for operating the first base station  52 A to communicate with the electronic device  10  and the second base station  52 B as part of the second example multi-SIM operation (e.g., Embodiment No. 2 from Table 1). In some embodiments, the method  182  may be implemented at least in part by executing instructions stored in a tangible, non-transitory, computer-readable medium, such as the memory  14 , using processing circuitry, such as processors  12 , or the like. However, as described herein, the method  182  is described as being performed by the first base station  52 A. It is noted that although depicted and/or described in a particular order, many operations described herein may be performed in any suitable order, and some operations may be skipped altogether. 
     At block  184 , the first base station  52 A may register to the first SIM card  64 A of the electronic device  10 . Operations performed at block  126  of  FIG. 11  may be performed at block  184  of  FIG. 14 , and thus are incorporated herein. Registering to the first base station  52 A may permit the electronic device  10  access to information transmitted via the first core network  54 A and/or the first radio access network  56 A. 
     At block  186 , the first base station  52 A may assign a paging cycle for the first SIM card  64 A corresponding the first core network  54 A without consideration for the paging cycle of the second SIM card  64 B corresponding to the second core network  54 B and may transmit the paging cycle assignment to the electronic device  10 . In this way, the first base station  52 A may use a default or otherwise defined paging cycle for the first SIM card  64 A. Thus, the burden of establishing a non-conflicting paging cycle is on the second base station  52 B. Once the paging cycle is established for the first core network  54 A for use by the electronic device  10 , at block  188 , the first base station  52 A may communicate with the electronic device  10  using the first core network  54 A according to the paging cycle assignment. 
     To elaborate on how the second base station  52 B may interact with the electronic device  10 ,  FIG. 15  is a flow chart illustrating a method  192  for operating the second base station  52 B to communicate with the electronic device  10  and the first base station  52 A as part of the second example multi-SIM operation (e.g., Embodiment No. 2 from Table 1). In some embodiments, the method  192  may be implemented at least in part by executing instructions stored in a tangible, non-transitory, computer-readable medium, such as the memory  14 , using processing circuitry, such as processors  12 , or the like. However, as described herein, the method  192  is described as being performed by the second core network  54 B. It is noted that although depicted and/or described in a particular order, many operations described herein may be performed in any suitable order, and some operations may be skipped altogether. 
     At block  194 , the second base station  52 B may receive information associated with the first SIM card  64 A, the first core network  54 A, and/or the electronic device  10  from the electronic device. The second base station  52 B may also receive an alert that the first SIM card  64 A is active. The information associated with the first core network  54 A includes the paging cycle assignment for the first SIM card  64 A. In some embodiments, the information includes credentials of the first SIM card  64 A to be used in authenticating the second SIM card  64 B. 
     At block  196 , the second base station  52 B may register to the second SIM card  64 B based on information from the electronic device  10 . To register the second SIM card  64 B, the second base station  52 B may authenticate the second SIM card  64 B using one or more keys from the second SIM card  64 B and transmitted by the electronic device  10 . The second core network  54 B may use the keys to verify that the electronic device  10  has an authority to access data of the second core network  54 B. In some embodiments, the second base station  52 B may also use credentials from the first SIM card  64 A when authenticating the second SIM card  64 B. Registering to the second base station  52 B may permit the electronic device  10  access to information transmitted via the second core network  54 B. 
     Using the paging cycle assignment received at block  194 , the second base station  52 B, at block  198 , may assign a paging cycle for the second SIM card  64 B corresponding to the second core network  54 B. The second base station  52 B may assign a paging cycle to the second core network  54 B that does not conflict with the paging cycle assignment of the first SIM card  64 A corresponding to the first core network  54 A. The second base station  52 B may determine a non-conflicting paging cycle assignment without direct communication with the first base station  52 A. In some embodiments, the second base station  52 B may assign a non-conflicting paging cycle assignment to the second SIM card  64 B by applying an offset to the paging cycle assignment of the first SIM card  64 A (e.g., an offset in time). The second base station  52 B may also transmit the paging cycle assignment for the second SIM card  64 B to the electronic device  10 . Using the non-conflicting paging cycle assignment, at block  200 , the second base station  52 B may communicate with the electronic device  10  without interrupting communications between the first base station  52 A and the electronic device  10 . 
     Embodiment No. 3: Two RF Chains with Core Network Intercommunication and Radio Access Network Frequency Selection 
       FIG. 16 ,  FIG. 17 , and  FIG. 18  describe processes that use direct communication between the core networks  54  to enable paging cycle assignment and registration to the SIM cards  64 , but further include operations that enable the electronic device  10  to indicate communication preferences (e.g., transmission band, transmission frequency) to the second base station  52 B to cause the second base station to redirect its communications to the electronic device  10 , such as to not conflict with other operations of the electronic device  10  and/or the first base station  52 A. 
     Turning now to  FIG. 16 , a flow chart illustrates a method  202  for operating the electronic device  10  to communicate with the first base station  52 A and the second base station  52 B as part of a third example multi-SIM operation (e.g., Embodiment No. 3 from Table 1). In the case when the electronic device  10  is able to listen substantially simultaneously to two or more frequencies, the method  202  may be used to tune between a first transmission frequency corresponding to the first core network  54 A and a second transmission frequency corresponding to the second core network  54 B. In this third example, the base stations  52  exchange information related to the electronic device  10 , including frequency preferences, and generate paging cycle assignments that do not overlap (e.g., conflict) in the time domain. In this way, conflicting transmission or reception durations are reduced and/or eliminated. Thus, it may be said that the burden of generating non-conflicting paging cycle assignments is on both of the base stations  52  for the third example multi-SIM operation (e.g., Embodiment No. 3 from Table 1). 
     In some embodiments, the method  202  may be implemented at least in part by executing instructions stored in a tangible, non-transitory, computer-readable medium, such as the memory  14 , using processing circuitry, such as processors  12 , or the like. However, as described herein, the method  202  is described as being performed by the electronic device  10 . It is noted that although depicted and/or described in a particular order, many operations described herein may be performed in any suitable order, and some operations may be skipped altogether. 
     At block  204 , the electronic device  10  may register to the first core network  54 A using the first SIM card  64 A to register to the first base station  52 A and, at block  206 , the electronic device  10  may activate the second SIM card  64 B. Operations performed at block  94  and block  96  of  FIG. 10  may be performed at block  204  and block  206  of  FIG. 16 , and thus are incorporated herein. The first base station  52 A may authenticate the first SIM card  64 A using one or more keys from the first SIM card  64 A and transmitted by the electronic device  10 . The first base station  52 A may use the keys to verify that the electronic device  10  has an authority to access data of the first core network  54 A. Registering to the first base station  52 A may permit the first SIM card  64 A and the electronic device  10  access to information transmitted via the first core network  54 A. 
     At block  208 , the electronic device  10  may register to the second core network  54 B using the second SIM card  64 B, and may indicate one or more transmission bands or transmission frequencies preferences of the electronic device  10  to the second base station  52 B. The electronic device  10  may also indicate to the second core network  54 B that it includes multiple SIM cards  64 . The second base station  52 B may authenticate the second SIM card  64 B using one or more keys from the second SIM card  64 B and transmitted by the electronic device  10 . The second base station  52 B may use the keys to verify that the electronic device  10  has an authority to access data of the second core network  54 B. Registering to the second base station  52 B may permit the electronic device  10  access to information transmitted via the second core network  54 B and/or the second radio access network  56 B. When the electronic device  10  transmits the transmission bands or transmission frequencies preferences, the electronic device  10  generates and send a set of preferred transmission bands and/or preferred transmission frequencies that the second base station  52 B may use when determining the transmission band or transmission frequency to use to communicate with the electronic device  10 . The electronic device  10  may exclude transmission bands or transmission frequencies that conflict with an operation of the electronic device  10 , are unsupported by the electronic device  10  and/or an operation of the first core network  54 A, or otherwise may conflict with a transmission from the electronic device  10 . Furthermore, the electronic device  10  may know the transmission band or transmission frequency of the first core network  54 A after registering to the first core network  54 A. In this way, the electronic device  10  may additionally or alternatively indicate the transmission band or the transmission frequency of the first core network  54 A to the second base station  52 B such that the second base station  52 B may not assign a conflicting transmission band or transmission frequency. 
     At block  210 , the electronic device  10  may receive the paging cycle assignment for the first SIM card  64 A corresponding to the first core network  54 A and may receive the paging cycle assignment for the second SIM card  64 B corresponding to the second core network  54 B. The electronic device  10  may receive the paging cycle assignment corresponding to the first core network  54 A from the first base station  52 A before or after (or substantially simultaneous to) receiving the paging cycle assignment corresponding to the second core network  54 B from the second base station  52 B. At block  212 , the electronic device  10  may use the paging cycle assignments to communicate with the first base station  52 A and/or the second base station  52 B. Operations performed at block  102  of  FIG. 10  may be performed at block  212  of  FIG. 16 , and thus are incorporated herein. 
     To elaborate on how the first base station  52 A may interact with the electronic device  10  and/or the second base station  52 B,  FIG. 17  is a flow chart illustrating a method  224  for operating the first base station  52 A to communicate with the electronic device  10  and the second core network  54 B as part of the third example multi-SIM operation (e.g., Embodiment No. 3 from Table 1). In some embodiments, the method  224  may be implemented at least in part by executing instructions stored in a tangible, non-transitory, computer-readable medium, such as the memory  14 , using processing circuitry, such as processors  12 , or the like. However, as described herein, the method  224  is described as being performed by the first base station  52 A. It is noted that although depicted and/or described in a particular order, many operations described herein may be performed in any suitable order, and some operations may be skipped altogether. 
     At block  226 , the first base station  52 A may register to the first SIM card  64 A of the electronic device  10 . At block  228 , the first base station  52 A may transmit information associated with the first SIM card  64 A, first core network  54 A, and/or the electronic device  10  to the second base station  52 B. At block  230 , the first base station  52 A may receive information associated with the second SIM card  64 B, the second core network  54 B, and/or the electronic device  10  from the second base station  52 B. Finally, at block  232 , the first base station  52 A may assign a paging cycle for the first core network  54 A based on the information from the second base station  52 B, and may transmit the paging cycle assignment for the first SIM card  64 A to the electronic device  10 . After the electronic device  10  implements the paging cycle assignment for the first core network  54 A, the first base station  52 A may, at block  234 , communicate with the electronic device  10  using the first core network  54 A and/or the first radio access network  56 A. 
     To elaborate on how the second core network  54 B may interact with the electronic device  10  and/or the first base station  52 A,  FIG. 18  is a flow chart illustrating a method  246  for operating the second core network  54 B to communicate with the electronic device  10  and the first base station  52 A as part of the third example multi-SIM operation (e.g., Embodiment No. 3 from Table 1). In some embodiments, the method  246  may be implemented at least in part by executing instructions stored in a tangible, non-transitory, computer-readable medium, such as the memory  14 , using processing circuitry, such as processors  12 , or the like. However, as described herein, the method  246  is described as being performed by the second core network  54 B. It is noted that although depicted and/or described in a particular order, many operations described herein may be performed in any suitable order, and some operations may be skipped altogether. 
     At block  248 , the second base station  52 B may receive information from the first base station  52 A associated with the first SIM card  64 A, the first core network  54 A, and/or the electronic device  10 , and may receive transmission bands or transmission frequencies preferences from the electronic device  10 . The information from the first base station  52 A may include credentials of the first SIM card  64 A to verify permission of the electronic device  10  to communicate with the second core network  54 B. The indicated band or frequency preferences may be used by the second base station to determine a transmission band or a transmission frequency compatible with the preferences of the electronic device  10  (e.g., non-conflicting with other operations or the first core network  54 A). 
     At block  250 , the second base station  52 B may register the second SIM card  64 B of the electronic device  10 . The second base station  52 B may reference information from the first base station  52 A (e.g., credential of the first SIM card  64 A) when registering the second SIM card  64 B. Operations performed of block  250  (of  FIG. 18 ) are the same as operations of block  150  of method  146  (e.g.,  FIG. 12 ), and are thus incorporated herein. 
     At block  252 , the second base station  52 B may transmit the transmission bands or transmission frequencies preferences of the electronic device  10  to the radio access network  56 B for use in selecting a transmission band or transmission frequency. The radio access network  56 B may redirect the transmission frequency or the transmission band of the second base station  52 B to accommodate one of the indicated band or frequency preferences of the electronic device  10 . In this way, the second base station  52 B may transmit the transmission bands or transmission frequencies preferences as one or more control signals to the radio access network  56 B. When the electronic device  10  indicates the transmission band or transmission frequency preferences, the electronic device  10  may generate a set of transmission bands and/or transmission frequencies that the second base station  52 B and/or radio access network  56 B may use when determining the transmission band or transmission frequency to use to communicate with the electronic device  10 . The second base station  52 B and/or the radio access network  56 B then may select non-conflicting transmission bands or transmission frequencies based on the indicated transmission bands or transmission frequencies preferences. 
     At block  254 , the second base station  52 B may assign a paging cycle for the second SIM card  64 B corresponding to the second core network  54 B, and may transmit the paging cycle assignment to the electronic device  10 . Operations performed of block  254  (of  FIG. 18 ) are the same as operations of block  154  of method  146  (e.g.,  FIG. 12 ), and are thus incorporated herein. After the electronic device  10  implements the paging cycle assignment, at block  256 , the second base station  52 B may communicate with the electronic device  10  using the second core network  54 B and/or the radio access network  56 B based on the paging cycle assignment and using the selected transmission band or transmission frequency. In this way, the second base station  52 B may transmit data to or receive data from the electronic device  10  during a transmission period  78  assigned via the paging cycle assignment for the second core network  54 B. In some embodiments, the electronic device  10  may receive an indication of the selected transmission band or transmission frequency from the second base station  52 B and/or may calibrate to the selected transmission band or transmission frequency before communicating with the second base station  52 B. In some cases, the electronic device  10  may not reference an indication of the selected transmission band or transmission frequency when calibrating to the selected transmission band or transmission frequency. 
     Embodiment No. 4: Two RF Chains with Radio Access Network Frequency Selection and without Core Network Intercommunication 
     Similar to  FIG. 13 ,  FIG. 14 , and  FIG. 15 , which describe processes that use the electronic device  10  as a communicative mediator between the core networks  54  to enable assignment of non-conflicting paging cycles without using direct intercommunication between the core networks  54 ,  FIG. 19 ,  FIG. 20 , and  FIG. 21  describe processes that enable the electronic device  10  to indicate communication preferences (e.g., transmission band, transmission frequency) to the second base station  52 B to cause the second base station to redirect its communications to the electronic device  10 , such as not to conflict with other operations of the electronic device  10  and/or the first base station  52 A. 
     Turning now to  FIG. 19 , a flow chart illustrates a method  268  for operating the electronic device  10  to communicate with the first base station  52 A and the second core network  54 B as part of a fourth example multi-SIM operation (e.g., Embodiment No. 2 from Table 1). In the case when the electronic device  10  is able to listen substantially simultaneously to two or more frequencies, the method  268  may be used to tune between a first transmission frequency corresponding to the first core network  54 A and a second transmission frequency corresponding to the second core network  54 B. In this fourth example, the electronic device  10  facilities exchange of information related to the first base station  52 A and/or the first core network  54 A to the second base station  52 B. The information may include frequency preferences and may enable the second core network  54 B to generate paging cycle assignments that do not overlap (e.g., conflict) in the time domain with the page cycle assignment for the first core network  54 A. In this way, conflicting transmission or reception durations are reduced and/or eliminated. Thus, it may be said that the burden of generating non-conflicting paging cycle assignments is on the second core network  54 B for the fourth example multi-SIM operation (e.g., Embodiment No. 4 from Table 1). 
     In some embodiments, the method  268  may be implemented at least in part by executing instructions stored in a tangible, non-transitory, computer-readable medium, such as the memory  14 , using processing circuitry, such as processors  12 , or the like. However, as described herein, the method  268  is described as being performed by the electronic device  10 . It is noted that although depicted and/or described in a particular order, many operations described herein may be performed in any suitable order, and some operations may be skipped altogether. 
     At block  270 , the electronic device  10  may register to the first core network  54 A using the first SIM card  64 A to register to the first base station  52 A. The electronic device  10  may, at block  272 , receive the paging cycle assignment for the first SIM card  64 A corresponding to the first core network  54 A from the first base station  52 A. At block  270 , the electronic device  10  may activate the second SIM card  64 B. Operations performed at block  170 , block  172 , and block  174  of  FIG. 13  may be performed at block  270 , block  272 , and block  274  of  FIG. 19 , and thus are incorporated herein. 
     At block  276 , the electronic device  10  may register to the second core network  54 B using with the second SIM card  64 B, and may indicate one or more transmission bands or transmission frequencies preferences to the second base station  52 B. Operations performed at block  208  of  FIG. 16  may be performed at block  276  of  FIG. 19 , and thus are incorporated herein. Also, at block  276 , the electronic device  10  may transmit information associated with the first SIM card  64 A, the first core network  54 A, and/or the electronic device  10  to the second base station  52 B, such as a paging cycle assignment for the first SIM card  64 A (e.g., received at block  272 ). The information may include credentials of the first SIM card  64 A which the second base station  52 B may reference when registering the second SIM card  64 B. It is noted that although not explicitly described as a part of each example process, each example process described herein may authenticate the second SIM card  64 B based on one or more credentials or information associated with the first SIM card  64 A. 
     At block  278 , the electronic device  10  may receive the paging cycle assignment for the second SIM card  64 B corresponding to the second core network  54 B from the second base station  52 B. Operations performed at block  178  of  FIG. 13  may be performed at block  278  of  FIG. 19 , and thus are incorporated herein. At block  278 , the electronic device  10  may also receive the selected transmission band or transmission frequency. Additionally or alternatively, the electronic device  10  may automatically tune or calibrate to a detected transmission band or transmission frequency of the second base station  52 B corresponding to the selected transmission band or transmission frequency, such as part of a sweeping operation. 
     At block  280 , the electronic device  10  may communicate with the first base station  52 A or the second base station  52 B based on the paging cycle assignment. Operations performed at block  180  of  FIG. 13  may be performed at block  280  of  FIG. 19 , and thus are incorporated herein. The second base station  52 B may communicate with electronic device  10  over the second core network  54 B and/or the radio access network  56 B using the selected transmission band or transmission frequency. The first base station  52 A may communicate with the electronic device  10  over the first core network  54 A and/or the radio access network  56 A using a default or otherwise determined transmission band or transmission frequency. In this way, the burden of accommodating transmission preferences of the first base station  52 A and/or the electronic device  10  is on the second base station  52 B. 
     To elaborate on how the first base station  52 A may interact with the electronic device  10 ,  FIG. 20  is a flow chart illustrating a method  292  for operating the first base station  52 A to communicate with the electronic device  10  and the second core network  54 B as part of the fourth example multi-SIM operation (e.g., Embodiment No. 4 from Table 1). In some embodiments, the method  292  may be implemented at least in part by executing instructions stored in a tangible, non-transitory, computer-readable medium, such as the memory  14 , using processing circuitry, such as processors  12 , or the like. However, as described herein, the method  292  is described as being performed by the first base station  52 A. It is noted that although depicted and/or described in a particular order, many operations described herein may be performed in any suitable order, and some operations may be skipped altogether. 
     At block  294 , the first base station  52 A may register to the first SIM card  64 A of the electronic device  10 . At block  296 , the first base station  52 A may assign a paging cycle for the first SIM card  64 A corresponding to the first core network  54 A without consideration for the paging cycle for the second SIM card  64 B corresponding to the second core network  54 B. Also, at block  296 , the first base station  52 A may transmit the paging cycle assignment for the first SIM card  64 A to the electronic device  10 . Finally, at block  298 , in response to the electronic device  10  implementing the paging cycle of the first SIM card  64 A, the first core network  54 A may communicate with the electronic device  10  based on the paging cycle assignment for the first SIM card  64 A. Operations performed at block  184 , block  186 , and block  188  of  FIG. 14  may be performed at block  294 , block  296 , and block  298  of  FIG. 19 , and thus are incorporated herein. 
     To elaborate on how the second core network  54 B may interact with the electronic device  10 ,  FIG. 21  is a flow chart illustrating a method  310  for operating the second core network  54 B to communicate with the electronic device  10  and the first base station  52 A as part of the fourth example multi-SIM operation (e.g., Embodiment No. 4 from Table 1). In some embodiments, the method  310  may be implemented at least in part by executing instructions stored in a tangible, non-transitory, computer-readable medium, such as the memory  14 , using processing circuitry, such as processors  12 , or the like. However, as described herein, the method  310  is described as being performed by the second core network  54 B. It is noted that although depicted and/or described in a particular order, many operations described herein may be performed in any suitable order, and some operations may be skipped altogether. 
     At block  312 , the second base station  52 B may receive information associated with the first SIM card  64 A, the first core network  54 A, and/or the electronic device  10  from the electronic device  10 , such as a paging cycle assignment for the first SIM card  64 A. The information from the electronic device  10  may also include credentials of the first SIM card  64 A to verify permission of the electronic device  10  to communicate with the second core network  54 B. Also, at block  312 , the second base station  52 B may receive indicated transmission bands or transmission frequencies preferences from the electronic device  10 . The indicated band or frequency preferences may be used by the second base station  52 B to determine a transmission band or a transmission frequency compatible with the preferences of the electronic device  10  (e.g., non-conflicting with other operations or the first core network  54 A). 
     At block  314 , the second base station  52 B may register the second SIM card  64 B based on the information associated with the first SIM card  64 A and received from the electronic device (e.g., credentials of the first SIM card  64 A). At block  316 , the second base station  52 B may transmit the transmission bands or transmission frequencies preferences of the electronic device  10  to the radio access network  56 B for selecting a transmission band or transmission frequency. At block  318 , the second base station  52 B may assign a paging cycle for the second SIM card  64 B based on information associated with the first SIM card  64 A (e.g., paging cycle assignment for the first SIM card  64 A) and may transmit the paging cycle assignment for the second SIM card  64 B to the electronic device  10 . At block  320 , the second base station may communicate with the electronic device  10  based on the paging cycle assignment for the second SIM card  64 B and the selected transmission band or transmission frequency. Operations performed at block  250 , block  252 , block  254 , and block  256  of  FIG. 18  may be performed at block  314 , block  316 , block  318 , and block  320  of  FIG. 21 , and thus are incorporated herein. 
     Embodiment No. 5: One RF Chain with Radio Access Network Frequency Selection and without Core Network Intercommunication 
     Turning now to  FIG. 22 , a flow chart illustrates a method  334  for operating the electronic device  10  to communicate with the first base station  52 A and the second core network  54 B as part of a fifth example multi-SIM operation (e.g., Embodiment No. 5 from Table 1) that may be used in combination with the first example and the second examples (e.g., Embodiment No. 1 and Embodiment No. 2 from Table 1). In the case when the electronic device  10  is not able to listen substantially simultaneously to two or more frequencies, the method  334  may be used to tune between a first transmission frequency corresponding to the first SIM card  64 A and a second transmission frequency corresponding to the second SIM card  64 B. In this first example, the radio access networks  56  may generate transmission/reception gaps to the electronic device  10  that do not overlap (e.g., conflict) in the time domain, providing suitable time for the electronic device  10  to change the RF component chain between the first transmission frequency and the second transmission frequency. In some embodiments, the method  334  may be implemented at least in part by executing instructions stored in a tangible, non-transitory, computer-readable medium, such as the memory  14 , using processing circuitry, such as processors  12 , or the like. However, as described herein, the method  334  is described as being performed by the electronic device  10 . It is noted that although depicted and/or described in a particular order, many operations described herein may be performed in any suitable order, and some operations may be skipped altogether. 
     At block  336 , the electronic device  10  may register to the first core network  54 A using the first SIM card  64 A. Operations performed at block  94  of  FIG. 10  may be performed at block  336  of  FIG. 22 , and thus are incorporated herein. At block  338 , the electronic device  10  may activate the second SIM card  64 B and, at block  340 , may register to the second core network  54 B using the second SIM card  64 B. Operations performed at block  96  and block  98  of  FIG. 10  may be performed at block  338  and block  340  of  FIG. 22 , and thus are incorporated herein. 
     At block  342 , the electronic device  10  may receive the respective paging cycle assignments for the first SIM card  64 A and the second SIM card  64 B. In some cases, the electronic device  10  may receive both of the paging cycle assignments after the electronic device  10  registers with the second base station  52 B. However, in some embodiments, the electronic device  10  receives the paging cycle assignment for the first SIM card  64 A before the electronic device  10  registers with the second base station  52 B. The electronic device  10  may initially communicate with the core networks  54  according to an initial and/or a default paging cycle assignment until the electronic device  10  receives the paging cycle assignments from the first base station  52 A and/or the second base station  52 B. In some embodiments, the second base station  52 B may generate the paging cycle assignment for the second SIM card  64 B corresponding to the second core network  54 B based on information transmitted directly to the second base station  52 B by the first base station  52 A (e.g., following operations of Embodiment No. 1). However, in some embodiments, the second base station  52 B may generate the paging cycle assignment for the second core network  54 B based on information transmitted to the second base station  52 B by the electronic device  10  (e.g., following operations of Embodiment No. 2). The electronic device  10  may, at block  344 , communicate with the first core network  54 A or the second core network  54 B based on the paging cycle assignments. Since the paging cycle assignments may not overlap in the time domain (e.g., are non-conflicting in the time domain), communications between the electronic device  10  and the core networks  54  sent according to the paging cycle assignments are not interrupted, thereby permitting use of multiple SIM cards  64  operated to have a negligible or zero likelihood of missing or dropped communications. 
     In some cases, the electronic device  10  includes the first SIM card  64 A and the second SIM card  64 B, where the second SIM card  64 B has a higher priority associated with its communications. For example, the second SIM card  64 B may correspond to a cellular network that broadcasts relatively high priority information (e.g., police communications). When the electronic device  10  is communicating with the first core network  54 A, some communications may be missed by the electronic device  10  since the electronic device  10  may not be operated in a transmission period  78  when the communication is sent to the electronic device  10 . To fix this, the second base station  52 B may use the first radio access network  56 A to allocate a transmission period  78  in the paging cycle assignment for the first SIM card  64 A, such as by generating connected discontinuous receive mode (C-DRX) gaps, in response to receiving a notification that the second base station  52 B has relatively high priority data to transmit to the electronic device  10 . The electronic device  10  may, in response to identifying the transmission period  78 , may switch frequencies and/or other configurations of the RF chains  58  to permit communication with the second base station  52 B. After conclusion of the relatively high priority communication, the second base station  52 B may prolong the transmission period  78  for the second SIM card  64 B until a subsequent transition into an idle period  80  for the paging cycle assignment of the second SIM card  64 B, such that normal operation may continue according to the paging cycle assignments. 
     Continued Discussions 
       FIG. 23  is a flow chart illustrating a method  356  for operating the electronic device  10  to communicate with the first base station  52 A and the second core network  54 B that summarizes operations described above with reference to Embodiments Nos. 1-5 from Table 1. In some embodiments, the method  356  may be implemented at least in part by executing instructions stored in a tangible, non-transitory, computer-readable medium, such as the memory  14 , using processing circuitry, such as processors  12 , or the like. However, as described herein, the method  356  is described as being performed by the electronic device  10 . It is noted that although depicted and/or described in a particular order, many operations described herein may be performed in any suitable order, and some operations may be skipped altogether. 
     At block  358 , the electronic device  10  may register to the first core network  54 A using the first SIM card  64 A. Operations performed at block  94  of  FIG. 10  may be performed at block  358  of  FIG. 23 , and thus are incorporated herein. At block  360 , the electronic device  10  may activate the second SIM card  64 B and, at block  362 , may register to the second core network  54 B using the second SIM card  64 B. Operations performed at block  96  and block  98  of  FIG. 10  may be performed at block  360  and block  362  of  FIG. 23 , and thus are incorporated herein. 
     At block  364 , the electronic device  10  may receive respective paging cycle assignments for the first SIM card  64 A and the second SIM card  64 B. In some cases, the electronic device  10  may receive both of the paging cycle assignments after the electronic device  10  registers with the second base station  52 B, however, in some embodiments, the paging cycle assignment associated with the first core network  54 A before the electronic device  10  registers with the second base station  52 B. The electronic device  10  may initially communicate with the core networks  54  according to an initial and/or a default paging cycle assignment until the electronic device  10  receives the paging cycle assignments from the first base station  52 A and/or the second base station  52 B. In some embodiments, the second base station  52 B may generate the paging cycle assignment for the second SIM card  64 B based on information transmitted directly to the second base station  52 B by the first base station  52 A (e.g., following operations of Embodiment No. 1, following operations of Embodiment No. 3). However, in some embodiments, the second base station  52 B may generate the paging cycle assignment for the second SIM card  64 B based on information transmitted to the second base station  52 B by the electronic device  10  (e.g., following operations of Embodiment No. 2, following operations of Embodiment No. 4). 
     Furthermore, in some embodiments, at block  364 , the electronic device  10  may receive a transmission band assignment or a transmission frequency assignment from the second core network  54 B. The second core network  54 B may select the transmission band assignment or the transmission frequency assignment from a set of preferred transmission bands or a set of preferred transmission frequencies transmitted to the second core network  54 B by the electronic device  10 . The electronic device  10  may identify compatible transmission bands or transmission frequencies to a transmission band or transmission frequency already assigned or allocated to the first SIM card  64 A and/or the first core network  54 A. 
     At block  366 , the electronic device  10  may communicate with the first core network  54 A or the second core network  54 B based on the paging cycle assignments. Since the paging cycle assignments may not overlap (e.g., are non-conflicting), communication between the electronic device  10  and the core networks  54  are not interrupted, thereby permitting use of multiple SIM cards  64 . 
       FIG. 24  is a flow chart illustrating a method  378  for operating a base station  52  to communicate with another base station  52  and the electronic device  10  as part of a that summarizes operations described above with reference to Embodiments Nos. 1-5 from Table 1. In some embodiments, the method  378  may be implemented at least in part by executing instructions stored in a tangible, non-transitory, computer-readable medium, such as the memory  14 , using processing circuitry, such as processors  12 , or the like. However, as described herein, the method  378  is described as being performed by a base station  52 . It is noted that although depicted and/or described in a particular order, many operations described herein may be performed in any suitable order, and some operations may be skipped altogether. 
     At block  380 , the base station  52  may register to a SIM card  64 . As described above, registration may include verifying or authenticating a SIM card  64  of an electronic device  10  for communication with a core network  54  of the base station  52 . To do so, the base station  52  may receive an identity number, such as an IMSI, from the SIM card  64  and/or electronic device  10 . In some embodiments, the electronic device  10  may transmit a second identity number, such as a personal identification number (PIN), to the first SIM card  64 A before the first SIM card  64 A reveals the identity number to the electronic device  10 . The base station  52  may include a memory  14 , and thus may search the memory  14  to determine an encryption key corresponding to the identity number of the SIM card  64 . The electronic device  10  and the base station may use the encryption key to encrypt and/or decrypt future communications with the first base station  52 A. Registering to the first base station  52 A may permit the electronic device  10  access to information transmitted via the first core network  54 A. 
     At block  382 , the base station  52  may receive a first paging cycle assignment for another core network  54 . The base station  52  may use the first paging cycle assignment of the other core network  54  when determining a second paging cycle to assign for the core network  54 , such as to determine a non-conflicting paging cycle assignment relative to preferences of the core network  54 . The paging cycle assignment may define one or more transmission or communication periods for the electronic device  10  to transmit the data to a core network (e.g., the core network  54 ) and/or to receive data from a core network. In this way, the base station  52 , at block  384 , may determine a second paging cycle assignment based on the first paging cycle assignment, such that the second paging cycle assignment does not conflict with the first paging cycle assignment. The base station  52  thus reduces or eliminates a likelihood of dropped, interrupted, or missed communications between the core network  54  and the electronic device  10  by modifying transmission patterns of the core network  54  in response to the transmission patterns of the other core network  54 . This may be considered a type of preemptive consideration to counteract transmission conflicts before a transmission conflict happens between the core networks  54 . 
     At block  386 , when the radio access network  56  is not considered, the base station  52  may, at block  388 , communicate with the electronic device  10  based on the first paging cycle assignment and the second paging cycle assignment. In this way, the base station  52  does not transmit data to the electronic device  10  during a transmission period of the first paging cycle assignment and waits until a transmission period of the second paging cycle assignment. 
     However, when, at block  386 , the radio access network  56  is considered, the base station  52  may, at block  390 , receive a set of preferred transmission bands or transmission frequencies from the electronic device  10 . The electronic device  10  may identify compatible transmission bands or transmission frequencies to a transmission band or transmission frequency already assigned or allocated to the first SIM card  64 A and/or the first core network  54 A. The base station  52  may, at block  392 , determine the transmission band assignment or the transmission frequency assignment from a set of preferred transmission bands or a set of preferred transmission frequencies transmitted to the base station  52  by the electronic device  10 . Then, at block  388 , when the base station  52  communicates with the electronic device  10  using the second paging assignment, the base station  52  may also use the selected transmission band or transmission frequency when transmitting with the electronic device  10 . 
     Technical effects of the present disclosure include systems and methods for adjusting transmission patterns of a base station based at least in part on determined transmission patterns of a base station or parameters associated with a first SIM card. By using paging cycle assignments to control when a base station transmits or receives information from an electronic device, the electronic device reduces or eliminates a likelihood of dropped or missing data transmitted (e.g., a communication) from the base station. This is at least in part because other base stations also communicatively coupled to the electronic device use non-conflicting transmission patterns when transmitting data to the electronic device, and thus may not transmit data at a time that may conflict with an ongoing communications. 
     The specific embodiments described above have been shown by way of example, and it should be understood that these embodiments may be susceptible to various modifications and alternative forms. It should be further understood that the claims are not intended to be limited to the particular forms disclosed, but rather to cover all modifications, equivalents, and alternatives falling within the spirit and scope of this disclosure. 
     The techniques presented and claimed herein are referenced and applied to material objects and concrete examples of a practical nature that demonstrably improve the present technical field and, as such, are not abstract, intangible or purely theoretical. Further, if any claims appended to the end of this specification contain one or more elements designated as “means for [perform]ing [a function] . . . ” or “step for [perform]ing [a function] . . . ”, it is intended that such elements are to be interpreted under 35 U.S.C. 112(f). However, for any claims containing elements designated in any other manner, it is intended that such elements are not to be interpreted under 35 U.S.C. 112(f).

Metadata:
Filing Date: 20200703
Publication Date: 20220726
Grant Date: 20220726
Priority Date: 20191004
Inventors: IOFFE, ANATOLIY SERGEY
SAYENKO, ALEXANDER
WAGNER, ELMAR
Assignee: APPLE INC
CPC Classifications: [{"code": "H04W76/28", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04W8/183", "inventive": true, "first": true, "tree": "[]"}, {"code": "H04W88/06", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04W76/28", "inventive": false, "first": false, "tree": "[]"}, {"code": "H04W8/24", "inventive": false, "first": false, "tree": "[]"}, {"code": "H04W76/27", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04W68/00", "inventive": false, "first": false, "tree": "[]"}, {"code": "H04W8/183", "inventive": true, "first": true, "tree": "[]"}, {"code": "H04W60/00", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04W68/02", "inventive": true, "first": true, "tree": "[]"}, {"code": "H04W60/005", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04W68/005", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04W68/005", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04W76/28", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04W8/183", "inventive": true, "first": true, "tree": "[]"}, {"code": "H04W60/00", "inventive": true, "first": false, "tree": "[]"}]
Family ID: 72717666