Patent Description:
There are an increasing number of multi-SIM (multiple subscriber identification modules) terminals such as multi-SIM mobile phones on the market as wireless communication technologies continue to develop. Typical scenarios of multi-SIM mobile phones include the following. A business user can have a private SIM and a business SIM and the two SIMs are placed on the same phone. An ordinary user can have multiple private SIMs and can choose a SIM from the multiple SIMs to use according to a communication service.

For a multi-SIM terminal, a network currently considers different SIMs as different terminals, and each SIM communicates with the network independently. There is no interconnection communication relationship among multiple SIMs. The prior art may include the following:.

<CIT> describes techniques that provide network assisted multi-subscription physical layer sharing at a user equipment (UE) by transmitting a multi-subscription capability indication to a network, establishing a link for a first subscription with the network based on the multi-subscription capability indication, and establishing a second subscription with the network using the link based on the multi-subscription capability indication, the first subscription is associated with the second subscription.

<CIT> describes that a user equipment (UE) may determine a capability of the UE to support multiple subscriber identity modules (SIMs). The multiple SIMs may enable the UE to communicate with multiple network nodes. The UE may notify at least one network node of the multiple network nodes of the multiple SIM capability of the UE.

The invention is defined by the attached set of claims.

In view of this, the disclosure provides a method for information transmission, a communication device and a storage medium.

According to a first aspect of the disclosure, a method for information transmission is provided, which is applicable to a terminal and includes sending indication information that the terminal has multiple SIMs to a base station in a process of establishing a radio resource control (RRC) connection.

The method further includes: receiving a multi-SIM information request sent by the base station based on the indication information; and sending module information of at least one of the multiple SIMs in response to the multi-SIM information request.

Receiving the multi-SIM information request sent by the base station based on the indication information includes receiving a UEInformationRequest signaling carrying the multi-SIM information request from the base station; and sending the module information of the at least one of the multiple SIMs includes sending a UEInformationResponse signaling carrying the module information.

Optionally, the method further includes receiving request content indication information, in which the request content indication information is configured to indicate module information of a SIM requested by the base station; and sending the module information of the at least one of the multiple SIMs includes sending module information of at least one SIM indicated by the request content indication information.

Optionally, receiving the request content indication information includes receiving a MUSIMInfoReportConfig signaling, in which the MUSIMInfoReportConfig signaling carries the request content indication information.

Optionally, the module information of the SIM includes identity information, and/or international mobile equipment identity (IMEI) information.

Optionally, in response to a connection between the terminal and the base station being a first network standard, sending the indication information that the terminal has the multiple SIMs to the base station includes: sending a RRCConnectionReconfigurationComplete signaling, a RRCConnectionReestablishmentComplete signaling, a RRCConnectionResumeComplete signaling, or a RRCConnectionSetupComplete signaling, that carries the indication information.

Optionally, in response to a connection between the terminal and the base station being a second network standard, sending the indication information that the terminal has the multiple SIMs to the base station includes: sending a RRCReconfigurationComplete signaling, a RRCReestablishmentComplete signaling, a RRCResumeComplete signaling, or a RRCSetupComplete signaling, that carries the indication information.

According to a second aspect of the disclosure, a method for information transmission is provided, which is applicable to a base station and includes: receiving indication information in a process of establishing a RRC connection by a terminal, in which the indication information is sent by the terminal in response to having at least two SIMs; and determining that the terminal has the at least two SIMs according to the indication information.

The method further includes: sending a multi-SIM information request in response to determining that the terminal has the at least two SIMs, in which the multi-SIM information request is configured to indicate the terminal to send module information of at least one SIM; and receiving the module information of the at least one SIM sent by the terminal in response to the multi-SIM information request.

Sending the multi-SIM information request includes sending a UEInformationRequest signaling carrying the multi-SIM information request; and receiving the module information of the at least one SIM sent by the terminal in response to the multi-SIM information request includes receiving a UEInformationResponse signaling carrying the module information.

Optionally, the method further includes sending request content indication information, in which the request content indication information is configured to indicate module information of a SIM; and receiving the module information of the at least one SIM sent by the terminal in response to the multi-SIM information request includes receiving module information of at least one SIM indicated by the request content indication information.

Optionally, sending the request content indication information includes sending a MUSIMInfoReportConfig signaling, in which the MUSIMInfoReportConfig signaling carries the request content indication information.

Optionally, the module information of the SIM includes identity information, and/or IMEI information.

Optionally, in response to a connection between the terminal and the base station being a first network standard, receiving the indication information includes: receiving a RRCConnectionReconfigurationComplete signaling, a RRCConnectionReestablishmentComplete signaling, a RRCConnectionResumeComplete signaling, or RRCConnectionSetupComplete signaling, that carries the indication information.

Optionally, in response to a connection between the terminal and the base station being a second network standard, receiving the indication information includes: receiving a RRCReconfigurationComplete signaling, a RRCReestablishmentComplete signaling, a RRCResumeComplete signaling, or a RRCSetupComplete signaling, that carries the indication information.

According to a third aspect of the disclosure, an apparatus for information transmission is provided, which is applicable to a terminal and includes a first sending module configured to send indication information that the terminal has multiple SIMs to a base station in a process of establishing a RRC connection.

The apparatus further includes: a first receiving module configured to receive a multi-SIM information request sent by the base station based on the indication information; and a second sending module configured to send module information of at least one of the multiple SIMs in response to the multi-SIM information request.

The first receiving module includes: a first receiving submodule configured to receive a UEInformationRequest signaling carrying the multi-SIM information request from the base station; and the second sending module includes a first sending submodule configured to send a UEInformationResponse signaling carrying the module information.

Optionally, the apparatus further includes: a second receiving module configured to receive request content indication information, in which the request content indication information is configured to indicate module information of a SIM requested by the base station; and the second sending module includes a second sending submodule configured to send module information of at least one SIM indicated by the request content indication information.

Optionally, the second receiving module includes a second receiving submodule configured to receive a MUSIMInfoReportConfig signaling, in which the MUSIMInfoReportConfig signaling carries the request content indication information.

Optionally, the first sending module includes: a third sending submodule configured to, in response to a connection between the terminal and the base station being a first network standard, send a RRCConnectionReconfigurationComplete signaling, a RRCConnectionReestablishmentComplete signaling, a RRCConnectionResumeComplete signaling, or RRCConnectionSetupComplete signaling, that carries the indication information.

Optionally, the first sending module includes: a fourth sending submodule configured to, in response to a connection between the terminal and the base station being a second network standard, send a RRCReconfigurationComplete signaling, a RRCReestablishmentComplete signaling, a RRCResumeComplete signaling, or a RRCSetupComplete signaling, that carries the indication information.

According to a fourth aspect of the disclosure, an apparatus for information transmission is provided, which is applicable to a base station and includes: a third receiving module configured to receive indication information in a process of establishing a RRC connection by a terminal, in which the indication information is sent by the terminal in response to having at least two SIMs; and a determining module configured to determine that the terminal has the at least two SIMs according to the indication information.

The apparatus further includes: third sending module configured to send a multi-SIM information request in response to determining that the terminal has the at least two SIMs, in which multi-SIM information request is configured to indicate the terminal to send module information of at least one SIM; and a fourth receiving module configured to receive the module information of the at least one SIM sent by the terminal in response to the multi-SIM information request.

The third sending module includes: a fifth sending submodule configured to send a UEInformationRequest signaling carrying the multi-SIM information request; and the fourth receiving module includes: a third receiving submodule configured to receive a UEInformationResponse signaling carrying the module information.

Optionally, the apparatus further includes: a fourth sending module configured to send request content indication information, wherein the request content indication information is configured to indicate module information of a SIM; and the fourth receiving module includes a fourth receiving submodule configured to receive module information of at least one SIM indicated by the request content indication information.

Optionally, the fourth sending module includes a sixth sending submodule configured to send a MUSIMInfoReportConfig signaling, in which the MUSIMInfoReportConfig signaling carries the request content indication information.

Optionally, the third receiving module includes a fifth receiving submodule configured to, in response to a connection between the terminal and the base station being a first network standard, receive a RRCConnectionReconfigurationComplete signaling, a RRCConnectionReestablishmentComplete signaling, a RRCConnectionResumeComplete signaling, or RRCConnectionSetupComplete signaling, that carries the indication information.

Optionally, the third receiving module includes a sixth receiving submodule configured to, in response to a connection between the terminal and the base station being a second network standard, receive a RRCReconfigurationComplete signaling, a RRCReestablishmentComplete signaling, a RRCResumeComplete signaling, or a RRCSetupComplete signaling, that carries the indication information.

According to a fifth aspect of the disclosure, a communication device is provided, which includes a processor, a transceiver, a memory, and an executable program stored on the memory and capable of being executed by the processor. The processor is configured to execute the executable program to perform the method as described in the first aspect or the second aspect.

According to a sixth aspect of the disclosure, a storage medium is provided, which has stored therein an executable program that executed by a processor, causes the processor to perform the method as described in the first aspect or the second aspect.

According to the method for information transmission, the apparatus for information transmission and the storage medium provided by embodiments of the disclosure, the terminal sends the indication information that the terminal has the multiple SIMs to the base station during the process of establishing the RRC connection. In this way, when establishing the RRC connection, the terminal can explicitly inform the base station of the event that it has the multiple SIMs, through the indication information of the multiple SIMs, which improves the transparency of states of the multiple SIMs of the terminal and increases the convenience of obtaining by the base station the multiple SIMs of the terminal. The base station can obtain the above-mentioned indication information report when establishing the RRC connection with the terminal. In this way, the base station learns whether the terminal supports the multiple SIMs earlier so as to facilitate the follow-up coordination scheduling to the multiple SIMs in the multiple SIMs of the terminal.

Reference will now be made in detail to some embodiments, examples of which are illustrated in the accompanying drawings. The implementations set forth in the following description of some embodiments do not represent all implementations consistent with the disclosure. Instead, they are merely examples of apparatuses and methods consistent with aspects related to the disclosure as recited in the appended claims.

The terms used in embodiments of the disclosure are only for the purpose of describing specific embodiments, and are not intended to limit the disclosure. The singular forms of "a", "said" and "the" used in the disclosure and appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and/or" as used herein refers to and includes any or all possible combinations of one or more associated listed items.

It should be understood that although the terms first, second, and third may be used in this disclosure to describe various information, the information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if' as used herein can be interpreted as "when", "while" or "in response to determining".

<FIG> illustrates a schematic diagram of a wireless communication system according to some embodiments of the disclosure. As illustrated in <FIG>, the wireless communication system is a communication system based on cellular mobile communication technologies. The wireless communication system includes terminals <NUM> and base stations <NUM>.

The terminal <NUM> may be a device that provides voice and/or data connectivity to a user. The terminal <NUM> may communicate with one or more core networks via a radio access network (RAN). The terminal <NUM> may be an Internet of Things (IoT) UE such as a sensor device, a mobile phone (or "cellular" phone) and a computer with the IoT UE. The terminal <NUM> may be a fixed, portable, pocket, hand-held, computer built-in or a vehicle-mounted device, for example, a station (STA), a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, a user device, or a UE. Alternatively, the UE <NUM>, terminal <NUM> may also be a device of an unmanned aerial vehicle. Alternatively, the terminal <NUM> may also be a vehicle-mounted device, for example, an engine control unit (ECU) with a wireless communication function or a wireless communication device externally connected to the ECU. Alternatively, the terminal <NUM> may also be a roadside device, for example, a streetlight, a signal light, or other roadside devices with a wireless communication function.

The base station <NUM> may be a network-side device in the wireless communication system. The wireless communication system may be a <NUM>th generation (<NUM>) mobile communication system, also known as a long term evolution (LTE) system. Or, the wireless communication system may also be a <NUM>th generation (<NUM>) mobile communication system, also known as a new radio (NR) system or <NUM> NR system. Alternatively, the wireless communication system may also be a next-generation system of the <NUM> system. The access network in the <NUM> system may be called new generation-radio access network (NG-RAN), or machine-type communication (MTC) system.

The base station <NUM> may be an evolved base station (eNB) employed in the <NUM> system. Alternatively, the base station <NUM> may also be a base station (gNB) that adopts a centralized distributed architecture in the <NUM> system. When the base station <NUM> adopts the centralized distributed architecture, it usually includes a central unit (CU) and at least two distributed units (DUs). The central unit is provided with protocol stacks of a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, and a media access control (MAC) layer. A protocol stack of a physical (PHY) layer is set in the DU. The specific implementation manner of the base station <NUM> is not limited in embodiments of the disclosure.

A wireless connection can be established between the base station <NUM> and the terminal <NUM> through a radio air interface. In different embodiments, the radio air interface may be a radio air interface based on the <NUM> mobile communication network technology standard, or the radio air interface may be a radio air interface based on the <NUM> mobile communication network technology standard, for example, the radio air interface is a NR, or, the radio air interface may also be a radio air interface based on a next generation of <NUM> mobile communication network technology standard.

Optionally, an end to end (E2E) connection may also be established between the terminals <NUM>, for example, scenes of vehicle to vehicle (V2V) communication, vehicle to infrastructure (V2I) communication and vehicle to pedestrian (V2P) communication in vehicle to everything (V2X) communication.

Optionally, the above wireless communication system may further include a network management device <NUM>.

Base stations <NUM> are connected to the network management device <NUM> respectively. The network management device <NUM> may be a core network device in the wireless communication system, for example, the network management device <NUM> may be a mobility management entity (MME) in an evolved packet core (EPC). Alternatively, the network management device may also be other core network devices, such as a serving gateway (SGW), a public data network gateway (PGW), a policy and charging rules function (PCRF) or a home subscriber server (HSS). The implementation form of the network management device <NUM> is not limited according to the disclosure.

Execution subjects involved in embodiments of the disclosure include, but are not limited to terminals that support multi-SIM and base stations.

Scenarios of embodiments of the disclosure may be that, currently, manners of processing multi-SIM mobile phones are based on implementation of various terminal manufacturers and there is no unified regulation standard, which leads to different terminal behaviors and processing manners, for example, dual-SIM single-standby, dual-SIM dual-standby single-pass, and dual-SIM dual-standby dual-pass. Also, it may cause the following problems.

The reason for the above problems is that the communication network side may not determine that the terminal has multiple SIMs, and thus may not coordinate communication of multiple SIMs.

As illustrated in <FIG>, a method for information transmission is provided in some embodiments. The method for information transmission can be applicable to a wireless communication device such as a terminal. The method includes the following.

In step <NUM>, indication information that the terminal has multiple SIMs is sent to a base station in a process of establishing a RRC connection.

Herein the terminal may be a multi-SIM terminal. The behavior mode of the terminal may be dual-SIM dual-standby single-pass, dual-SIM dual-standby dual-pass or the like.

The SIM may be an SIM that exists in a separate individual form or an embedded SIM (e-SIM) that exists inside the terminal in an integrated form.

When the terminal has multiple SIMs, the terminal sends the indication information that the terminal has the multiple SIMs to the base station, to indicate the base station that it has the multiple SIMs. Herein the multiple SIMs may be two or more SIMs. The terminal carries the indication information of the multiple SIMs in an uplink RRC signaling during establishing the RRC connection. The terminal may use any one of its own communication networks connected by the multiple SIMs to send the indication information of the multiple SIMs.

In the process of establishing the RRC connection with the base station, such as switching from the idle state to the connected state or from the inactive state to the connected state, the terminal sends the indication information that it has the multiple SIMs through the RRC signaling to the base station that establishes the RRC connection.

For example, an information unit may be set in the uplink RRC signaling during the RRC connection process for setting the indication information. For example, "<NUM>" can be used in the reserved bit of the uplink RRC signaling to indicate that the terminal has multiple SIMs and "<NUM>" can be used to indicate that the terminal has one SIM, or "<NUM>" can be used to indicate that the terminal has multiple SIMs and " <NUM>" can be used to indicate that the terminal has one SIM. Using the RRC signaling to carry request content indication information can improve the utilization efficiency of the RRC signaling, reduce the interaction complexity caused by the newly added signaling and reduce the development workload.

The indication information of the multiple SIMs may also be used to indicate the number of SIMs that the terminal has. For example, two bits can be used to indicate the number of SIMs, "<NUM>" is used to indicate that the terminal has one SIM, "<NUM>" is used to indicate that the terminal has two SIMs, "<NUM>" is used to indicate that the terminal has three SIMs and "<NUM>" is used to indicate that the terminal has four SIMs.

After receiving the indication information of the multiple SIMs, the base station can determine that the terminal has the multiple SIMs. If the base station has different configurations or different communication manners for the single-SIM terminal and the multi-SIM terminal, it can perform different configurations or adopt different communication manners based on the indication information of the multiple SIMs.

In this way, when establishing the RRC connection, the terminal can explicitly inform the base station of the event that it has the multiple SIMs, through the indication information of the multiple SIMs, which improves the transparency of states of the multiple SIMs of the terminal and increases the convenience of obtaining by the base station the multiple SIMs of the terminal. The base station can obtain the above-mentioned indication information report when establishing the RRC connection with the terminal. In this way, the base station learns whether the terminal supports the multiple SIMs earlier so as to facilitate the follow-up coordination scheduling to the multiple SIMs in the multiple SIMs of the terminal.

In some embodiments, as illustrated in <FIG>, the method for information transmission may further include the following.

In step <NUM>, a multi-SIM information request sent by the base station based on the indication information is received.

In step <NUM>, module information of at least one of the multiple SIMs is sent in response to the multi-SIM information request.

After determining that the terminal has the multiple SIMs, the base station can request to obtain module information of one or more SIMs by sending the multi-SIM information request. Herein the module information may include: identity information of the SIM and/or operator information accessible by the SIM and the like. The module information may also include state information of the SIM, for example, the SIM is in an on or off state.

After receiving the multi-SIM information request, the terminal can send the module information of one or more SIMs to the base station.

After obtaining the module information, the base station can determine the communication network, the operator and the working state of each SIM and then can coordinate communication of each SIM. The base station can configure communication resources for each SIM through downlink commands and the like. The allocated communication resources of each SIM may not overlap. In this way, conflicts in configuration of communication resources of each SIM can be reduced.

For example, when the first SIM is paged, the communication of the second SIM may be suspended. It reduces the invalid paging for the second SIM caused by the terminal responding to the paging of the first SIM and the second SIM being disconnected from the communication network.

In some embodiments, step <NUM> includes: receiving a UEInformationRequest signaling carrying the multi-SIM information request from the base station.

Step <NUM> may include: sending a UEInformationResponse signaling carrying the module information.

The base station carries the multi-SIM information request in the UEInformationRequest signaling, to request the terminal to obtain module information of multiple SIMs. The multi-SIM information request may be carried in the UEInformationRequest signaling in the form of a MUSIMInfoReq information unit.

The terminal sends the module information to the base station through the UEInformationResponse signaling. The module information can be carried in the UEInformationResponse signaling in the form of a MUSIMInfoReport information unit.

Carrying the multi-SIM information request and/or module information in the RRC signaling can improve the utilization efficiency of the RRC signaling, reduce the interaction complexity caused by the newly added signaling and reduce the development workload.

In some embodiments, the method for information transmission may further include: receiving request content indication information, in which the request content indication information is configured to indicate module information of a SIM requested by the base station.

Step <NUM> includes: sending module information of at least one SIM indicated by the request content indication information.

Herein the request content indication information. The module information may include: identity information of the SIM, and/or operator information accessible by the SIM, and/or state information of the SIM. The base station may receive the module information requested by the request content indication information based on communication requirements of the SIM.

For example, it may indicate that only the identity information of the SIM is required. The multi-SIM information request and the request content indication information can be sent to the terminal through the same signaling.

After receiving the request content indication information, the terminal sends the corresponding SIM module information to the base station based on the module information requested by the base station.

In some embodiments, receiving the request content indication information includes: receiving a MUSIMInfoReportConfig signaling, in which the MUSIMInfoReportConfig signaling carries the request content indication information.

The base station carries the multi-SIM information request in the UEInformationRequest signaling to request the terminal to obtain module information of multiple SIMs. The UEInformationRequest signaling may also carry the request content indication information to indicate the module information requested. The multi-SIM information request may be carried in the UEInformationRequest signaling in the form of a MUSIMInfoReq information unit, and the request content indication information may be carried in the UEInformationRequest signaling in the form of a MUSIMInfoReq information unit.

Carrying the request content indication information in the RRC signaling, or carrying the request content indication information at the same time as the multi-SIM information request, can improve the utilization efficiency of the RRC signaling, reduce the interaction complexity caused by the new added signaling and reduce the development workload.

In some embodiments, the module information of the SIM includes: identity information and/or IMEI information.

The module information may include: identity information and/or IMEI information and the like, and the base station may determine the communication network to which each SIM belongs based on the identity information and/or IMEI information and the like.

For different cellular mobile communication networks, the indication information that the terminal has the multiple SIMs can be carried in different signalings.

For example, for a fourth generation (<NUM>) network, the indication information of the multiple SIMs may be carried in a RRCConnectionReconfigurationComplete signaling, a RRCConnectionReestablishmentComplete signaling, a RRCConnectionResumeComplete signaling, or a RRCConnectionSetupComplete signaling. The indication information of the multiple SIMs may be the MUSIMInfoAvailable information unit in the above-mentioned signalings.

Therefore, in some embodiments, step <NUM> may include: sending a RRCConnectionReconfigurationComplete signaling, a RRCConnectionReestablishmentComplete signaling, a RRCConnectionResumeComplete signaling, or a RRCConnectionSetupComplete signaling, that carries the indication information.

For example, using the MUSIMInfoAvailable information unit to carry the indication information may use the following code: MUSIMInfoAvailable-r17 ENUMERATED {true} OPTIONAL.

If the terminal has multiple SIMs, MUSIMInfoAvailable-r17 in the RRCConnectionReconfigurationComplete-v1700-IEs may be set to True. If the terminal does not have multiple SIMs, MUSIMInfoAvailable-r17 may be not included in the RRCConnectionReconfigurationComplete-v1700-IEs.

Carrying the request content indication information in the RRC signaling can improve the utilization efficiency of the RRC signaling, reduce the interaction complexity caused by the newly added signaling and reduce the development workload.

For example, for a fifth generation (<NUM>) network, a RRCReconfigurationComplete signaling, a RRCReestablishmentComplete signaling, a RRC ResumeComplete, or a RRCSetupComplete signaling may carry the indication information of the multiple SIMs. Specifically, the indication information of the multiple SIMs may be the MUSIMInfoAvailable information unit in the above-mentioned signalings.

In some embodiments, step <NUM> may include: sending a RRCReconfigurationComplete signaling, a RRCReestablishmentComplete signaling, a RRCResumeComplete signaling, or a RRCSetupComplete signaling, that carries the indication information.

For example, using the MUSIMInfoAvailable information unit to carry the indication information may use the following code:
MUSIMInfoAvailable-r17 ENUMERATED {true} OPTIONAL.

If the terminal has multiple SIMs, MUSIMInfoAvailable-r17 in the RRCConnectionReconfigurationComplete-v1700-IEs can be set to True. If the terminal does not have multiple SIMs, MUSIMInfoAvailable-r17 is not included in the RRCConnectionReconfigurationComplete-v1700-IEs.

As illustrated in <FIG>, some embodiments provide a method for information transmission. The method for information transmission may be used in wireless communication. The method for information transmission may include the following.

In step <NUM>, indication information is received in a process of establishing a RRC connection by a terminal, in which the indication information is sent by the terminal in response to having at least two SIMs.

In step <NUM>, it is determined that the terminal has the at least two SIMs according to the indication information.

For example, an information unit may be set in the uplink RRC signaling during the RRC connection process for setting the indication information. For example, "<NUM>" can be used in the reserved bit of the uplink RRC signaling to indicate that the terminal has multiple SIMs and "<NUM>" can be used to indicate that the terminal has one SIM, or "<NUM>" can be used to indicate that the terminal has multiple SIMs and "<NUM>" can be used to indicate that the terminal has one SIM. Using the RRC signaling to carry request content indication information can improve the utilization efficiency of the RRC signaling, reduce the interaction complexity caused by the newly added signaling and reduce the development workload.

In some embodiments, the method for information transmission may further include: sending a multi-SIM information request in response to determining that the terminal has the at least two SIMs, in which the multi-SIM information request is configured to indicate the terminal to send module information of at least one SIM; and receiving the module information of the at least one SIM sent by the terminal in response to the multi-SIM information request.

In some embodiments, sending the multi-SIM information request includes sending a UEInformationRequest signaling carrying the multi-SIM information request. Receiving the module information of the at least one SIM sent by the terminal in response to the multi-SIM information request includes receiving a UEInformationResponse signaling carrying the module information.

The base station may carry the multi-SIM information request in the UEInformationRequest signaling, to request the terminal to obtain module information of multiple SIMs. The multi-SIM information request may be carried in the UEInformationRequest signaling in the form of a MUSIMInfoReq information unit.

The terminal can send the module information to the base station through the UEInformationResponse signaling. The module information can be carried in the UEInformationResponse signaling in the form of a MUSIMInfoReport information unit.

In some embodiments, the method for information transmission further includes: sending request content indication information, in which the request content indication information is configured to indicate module information of a SIM; receiving the module information of the at least one SIM sent by the terminal in response to the multi-SIM information request includes receiving module information of at least one SIM indicated by the request content indication information.

Herein module information may include: identity information of the SIM, and/or operator information accessible by the SIM, and/or state information of the SIM. The base station may receive the module information requested by the request content indication information based on communication requirements of the SIM. The request content indication information, for example, may indicate that only the identity information of the SIM is required. The multi-SIM information request and the request content indication information can be sent to the terminal through the same signaling.

In some embodiment, step <NUM> may include: sending a MUSIMInfoReportConfig signaling, in which the MUSIMInfoReportConfig signaling carries the request content indication information.

The base station may carry the multi-SIM information request in the UEInformationRequest signaling to request the terminal to obtain module information of multiple SIMs. The UEInformationRequest signaling may also carry the request content indication information to indicate the module information requested. The multi-SIM information request may be carried in the UEInformationRequest signaling in the form of a MUSIMInfoReq information unit, and the request content indication information may be carried in the UEInformationRequest signaling in the form of a MUSIMInfoReq information unit.

For example, for a <NUM> network, the indication information of the multiple SIMs may be carried in a RRCConnectionReconfigurationComplete signaling, a RRCConnectionReestablishmentComplete signaling, a RRCConnectionResumeComplete signaling, or a RRCConnectionSetupComplete signaling. The indication information of the multiple SIMs may be the MUSIMInfoAvailable information unit in the above-mentioned signalings.

Therefore, in some embodiments, step <NUM> may include: receiving a RRCConnectionReconfigurationComplete signaling, a RRCConnectionReestablishmentComplete signaling, a RRCConnectionResumeComplete signaling, or a RRCConnectionSetupComplete signaling, that carries the indication information.

Therefore, in some embodiments, step <NUM> may include: receiving a RRCReconfigurationComplete signaling, a RRCReestablishmentComplete signaling, a RRCResumeComplete signaling, or a RRCSetupComplete signaling, that carries the indication information.

An example is provided below in conjunction with any of the foregoing embodiments.

The disclosure proposes a method for interacting information of dual SIMs. When a multi-SIM terminal establishes an RRC connection with a base station (that is, becomes a connected state), it can notify the base station establishing the RRC connection, of the multi-SIM event through the RRC signaling. For the <NUM> network, it can be notified through a RRCConnectionReconfigurationComplete signaling, a RRCConnectionReestablishmentComplete signaling, a RRCConnectionResumeComplete, or a RRCConnectionSetupComplete signaling. In detail, it can be notified through the MUSIMInfoAvailable information unit in these signalings. For <NUM> networks, it can be notified through a RRCReconfigurationComplete signaling, a RRCReestablishmentComplete signaling, a RRCResumeComplete signaling or a RRCSetupComplete. In detail, it can be notified through the MUSIMInfoAvailable information unit in these signalings.

Taking the RRCConnectionReconfigurationComplete signaling as an example, the RRCConnectionReconfigurationComplete signaling is used to confirm the successful completion of the RRC connection reconfiguration. The content of the RRCConnectionReconfigurationComplete signaling may include:
<IMG>
<IMG>.

After receiving the RRC signaling, the base station learns that the terminal has multi-SIM information. If the base station wants to obtain information about multiple SIMs of the terminal, such as identity information, it requests the terminal to obtain the multi-SIM information of the terminal through the RRC signaling. It can also specify in the signaling which information want to obtain, such as identity information, IMEI information, etc., such as, in the UEInformationRequest signaling, more specifically, through the MUSIMInfoReq information unit in the UEInformationRequest signaling to request. Optionally, it can also use the MUSIMInfoReportConfig signaling to indicate the specific information want to obtain.

Taking the UEInformationRequest signaling as an example, the UEInformationRequest signaling is a command used by the base station to retrieve information from the terminal. The content of UEInformationRequest signaling may include:
<IMG>.

After receiving the RRC signaling with the multi-SIM information request sent by the base station, the terminal with multi-SIM information sends its own multi-SIM information to the base station through the RRC signaling. Specifically, it can use the UEInformationResponse signaling. More specifically, it can be sent through the MUSIMInfoReport information unit in UEInformationResponse signaling.

Taking the UEInformationResponse signaling as an example, the terminal uses the UEInformationResponse signaling to transmit information requested by the base station. The content of the signaling may include:
<IMG>.

Some embodiments of the disclosure also provide an apparatus for information transmission, which is applicable to a terminal. <FIG> is a block diagram of an apparatus <NUM> for information transmission according to some embodiments of the disclosure. As illustrated in <FIG>, the apparatus <NUM> includes a first sending module <NUM>.

The first sending module <NUM> is configured to send indication information that the terminal has multiple SIMs to a base station in a process of establishing a RRC connection.

In some embodiments, the apparatus <NUM> further includes a first receiving module <NUM> and a second sending module <NUM>. The first receiving module <NUM> is configured to receive a multi-SIM information request sent by the base station based on the indication information. The second sending module <NUM> is configured to send module information of at least one of the multiple SIMs in response to the multi-SIM information request.

In some embodiment, the first receiving module <NUM> includes: a first receiving submodule <NUM> configured to receive a UEInformationRequest signaling carrying the multi-SIM information request from the base station; and the second sending module <NUM> includes a first sending submodule <NUM> configured to send a UEInformationResponse signaling carrying the module information.

In some embodiment, the apparatus <NUM> further includes a second receiving module <NUM> configured to receive request content indication information, wherein the request content indication information is configured to indicate module information of a SIM requested by the base station. The second sending module <NUM> includes a second sending submodule <NUM> configured to send module information of at least one SIM indicated by the request content indication information.

In some embodiment, the second receiving module <NUM> includes a second receiving submodule <NUM> configured to receive a MUSIMInfoReportConfig signaling, in which the MUSIMInfoReportConfig signaling carries the request content indication information.

In some embodiment, the module information of the SIM includes identity information, and/or IMEI information.

In some embodiment, the first sending module <NUM> includes a third sending submodule <NUM> configured to, in response to a connection between the terminal and the base station being a first network standard, send a RRCConnectionReconfigurationComplete signaling, a RRCConnectionReestablishmentComplete signaling, a RRCConnectionResumeComplete signaling, or RRCConnectionSetupComplete signaling, that carries the indication information.

In some embodiment, the first sending module <NUM> includes a fourth sending submodule <NUM> configured to, in response to a connection between the terminal and the base station being a second network standard, send a RRCReconfigurationComplete signaling, a RRCReestablishmentComplete signaling, a RRCResumeComplete signaling, or a RRCSetupComplete signaling, that carries the indication information.

Some embodiments of the disclosure also provide an apparatus for information transmission, which is applicable to a base station. <FIG> is a block diagram of an apparatus <NUM> for information transmission according to some embodiments of the disclosure. As illustrated in <FIG>, the apparatus <NUM> includes a third receiving module <NUM> and a determining module <NUM>.

The third receiving module <NUM> is configured to receive indication information in a process of establishing a RRC connection by a terminal, in which the indication information is sent by the terminal in response to having at least two SIMs.

The determining module <NUM> is configured to determine that the terminal has the at least two SIMs according to the indication information.

In some embodiment, the apparatus <NUM> further includes a third sending module <NUM> configured to send a multi-SIM information request in response to determining that the terminal has the at least two SIMs, in which the multi-SIM information request is configured to indicate the terminal to send module information of at least one SIM; and a fourth receiving module <NUM> configured to receive the module information of the at least one SIM sent by the terminal in response to the multi-SIM information request.

In some embodiment, the third sending module <NUM> includes a fifth sending submodule <NUM> configured to send a UEInformationRequest signaling carrying the multi-SIM information request; and the fourth receiving module <NUM> includes a third receiving submodule <NUM> configured to receive a UEInformationResponse signaling carrying the module information.

In some embodiment, the apparatus further includes a fourth sending module <NUM> configured to send request content indication information, in which the request content indication information is configured to indicate module information of a SIM; and the fourth receiving module <NUM> includes a fourth receiving submodule <NUM> configured to receive module information of at least one SIM indicated by the request content indication information.

In some embodiment, the fourth sending module <NUM> includes a sixth sending submodule <NUM> configured to send a MUSIMInfoReportConfig signaling, in which the MUSIMInfoReportConfig signaling carries the request content indication information.

In some embodiment, the third receiving module <NUM> includes a fifth receiving submodule <NUM> configured to, in response to a connection between the terminal and the base station being a first network standard, receive a RRCConnectionReconfigurationComplete signaling, a RRCConnectionReestablishmentComplete signaling, a RRCConnectionResumeComplete signaling, or RRCConnectionSetupComplete signaling, that carries the indication information.

In some embodiment, the third receiving module <NUM> includes a sixth receiving submodule <NUM> configured to, in response to a connection between the terminal and the base station being a second network standard, receive a RRCReconfigurationComplete signaling, a RRCReestablishmentComplete signaling, a RRCResumeComplete signaling, or a RRCSetupComplete signaling, that carries the indication information.

In some embodiments, the above modules and submodules may be implemented by one or more central processing units (CPU), a graphics processing unit (GPU), a baseband processor (BP), an application specific integrated circuit (ASIC), DSP, a programmable logic device (PLD), a complex programmable logic device (CPLD), a field programmable gate array (FPGA), a general purpose processor, a controller, a micro controller unit (MCU), a microprocessor or other electronic components in combination with one or more radio frequency (RF) antennas to perform the foregoing methods.

<FIG> is a block diagram of a device <NUM> for information transmission according to some embodiments. For example, the device <NUM> may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a gaming console, a tablet, a medical device, exercise equipment, a personal digital assistant, and the like.

Referring to FIG. <NUM>, the device <NUM> may include one or more of the following components: a processing component <NUM>, a memory <NUM>, a power component <NUM>, a multimedia component <NUM>, an audio component <NUM>, an input/output (I/O) interface <NUM>, a sensor component <NUM>, and a communication component <NUM>.

Examples of such data include instructions for any disclosures or methods operated on the device <NUM>, contact data, phonebook data, messages, pictures, video, etc. The memory <NUM> may be implemented using any type of volatile or non-volatile memory devices, or a combination thereof, such as a static random access memory (SRAM), an electrically erasable programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a programmable read-only memory (PROM), a read-only memory (ROM), a magnetic memory, a flash memory, a magnetic or optical disk.

The audio component <NUM> is configured to output and/or input audio signals. For example, the audio component <NUM> includes a microphone ("MIC") configured to receive an external audio signal when the device <NUM> is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may be further stored in the memory <NUM> or transmitted via the communication component <NUM>. In some embodiments, the audio component <NUM> further includes a speaker to output audio signals.

The sensor component <NUM> may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging disclosures.

The communication component <NUM> is configured to facilitate communication, wired or wirelessly, between the device <NUM> and other devices. The device <NUM> can access a wireless network based on a communication standard, such as WiFi, <NUM>, or <NUM>, <NUM>/LTE, <NUM>/NR or a combination thereof. In one exemplary embodiment, the communication component <NUM> receives a broadcast signal or broadcast associated information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component <NUM> further includes a near field communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on a radio frequency identification (RFID) technology, an infrared data association (IrDA) technology, an ultra-wideband (UWB) technology, a Bluetooth (BT) technology, and other technologies.

In exemplary embodiments, the device <NUM> may be implemented with one or more disclosure specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, micro-controllers, microprocessors, or other electronic components, for performing the above described methods.

In exemplary embodiments, there is also provided a non-transitory computer-readable storage medium including instructions, such as included in the memory <NUM>, executable by the processor <NUM> in the device <NUM>, for performing the above-described methods. For example, the non-transitory computer-readable storage medium may be a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disc, an optical data storage device, and the like.

Claim 1:
A method for information transmission, performed by a terminal, comprising:
sending (<NUM>) indication information that the terminal has multiple subscriber identification modules, SIMs, to a base station in a process of establishing a radio resource control, RRC, connection;
being characterized in:
receiving (<NUM>) a multi-SIM information request sent by the base station based on the indication information; and
sending (<NUM>) module information of at least one of the multiple SIMs in response to the multi-SIM information request;
wherein receiving (<NUM>) the multi-SIM information request sent by the base station based on the indication information comprises:
receiving a UEInformationRequest signaling carrying the multi-SIM information request from the base station;
sending (<NUM>) the module information of the at least one of the multiple SIMs comprises:
sending a UEInformationResponse signaling carrying the module information.