Patent Publication Number: US-2023164876-A1

Title: Discontinuous Reception Processing Method and Apparatus, Terminal, and Network-Side Device

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a Bypass Continuation Application of PCT/CN2021/112460 filed Aug. 13, 2021, and claims priority to Chinese Patent Application No. 202010845164.X filed Aug. 20, 2020, the disclosures of which are hereby incorporated by reference in their entireties. 
    
    
     BACKGROUND OF THE INVENTION 
     Field of the Invention 
     This disclosure relates to the field of communications technologies, and in particular relates to a discontinuous reception DRX processing method and apparatus, a terminal, and a network-side device. 
     Description of Related Art 
     Sidelink (SL) has been supported by long term evolution (LTE) systems since release  12 , and is used for direct data transmission between user equipment (UE) without a network device. 
     The design of LTE sidelink is applicable to particular public safety affairs (for example, emergency communication in disaster sites such as fire or earthquake) or vehicle to everything (V2X) communication. Vehicle to everything communication includes various services, such as basic safety communication, advanced (autonomous) driving, platooning, and sensor expansion. LTE sidelink supports only broadcast communication, and therefore is mainly used for basic safety communication. Other advanced V2X services with strict quality of service (QoS) requirements in terms of delay and reliability are supported by 5G new radio (NR) sidelink. 
     At present, sidelink transmission is mainly divided into the following transmission modes: broadcast, groupcast, and unicast. Unicast, as the name implies, is one-to-one transmission. Groupcast is one-to-many transmission. Broadcast is also one-to-many transmission but does not have the concept of terminals belonging to one group. At present, sidelink unicast and groupcast communication supports the physical layer hybrid automatic repeat request (HARQ) feedback mechanism. 
     The discontinuous reception (DRX) mechanism is supported in both LTE and NR, and DRX on and off durations are configured to implement power saving for the terminal. 
     In the process of implementing this application, the inventors have found that the prior art has at least the following problem: 
     At present, the SL DRX mechanism is introduced for power saving in NR SL. To ensure normal operation of SL DRX, impact of Uu DRX needs to be considered. To be specific, when SL DRX and Uu DRX of an SL terminal operate simultaneously, alignment of two types of DRX configurations (mainly their on-durations) need to be ensured. However, there is no clear solution in the prior art to achieve this purpose. 
     SUMMARY OF THE INVENTION 
     According to a first aspect, an embodiment of this application provides a discontinuous reception DRX processing method, applied to a terminal and including: 
     sending DRX configuration preference information to a network-side device; where the DRX configuration preference information is used to assist the network-side device in configuring at least one of sidelink SL DRX or Uu DRX for the terminal. 
     According to a second aspect, an embodiment of this application provides a discontinuous reception DRX processing method, applied to a network-side device and including: 
     receiving DRX configuration preference information sent by a terminal; and 
     configuring at least one of sidelink SL DRX or Uu DRX for the terminal according to the DRX configuration preference information. 
     According to a third aspect, an embodiment of this application provides a discontinuous reception DRX processing apparatus, applied to a terminal and including: 
     a first sending module, configured to send DRX configuration preference information to a network-side device; where the DRX configuration preference information is used to assist the network-side device in configuring at least one of sidelink SL DRX or Uu DRX for the terminal. 
     According to a fourth aspect, an embodiment of this application provides a discontinuous reception DRX processing apparatus, applied to a network-side device and including: 
     a second receiving module, configured to receive DRX configuration preference information sent by a terminal; and 
     a configuration module, configured to configure at least one of sidelink SL DRX or Uu DRX for the terminal according to the DRX configuration preference information. 
     According to a fifth aspect, an embodiment of this application provides a terminal, where the terminal includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, and when the program or the instructions are executed by the processor, the steps of the method according to the first aspect are implemented. 
     According to a sixth aspect, an embodiment of this application provides a network-side device, where the network-side device includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, and when the program or the instructions are executed by the processor, the steps of the method according to the second aspect are implemented. 
     According to a seventh aspect, an embodiment of this application provides a non-transitory readable storage medium, where a program or instructions are stored in the non-transitory readable storage medium, and when the program or the instructions are executed by a processor, the steps of the method according to the first aspect are implemented, or the steps of the method according to the second aspect are implemented. 
     According to an eighth aspect, an embodiment of the application provides a chip, where the chip includes a processor and a communications interface, the communications interface is coupled to the processor, and the processor is configured to run a program or instructions of a network-side device to implement the method according to the first aspect or the method according to the second aspect. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG.  1    is a block diagram of a wireless communications system to which the embodiments of this application are applicable; 
         FIG.  2    is a first schematic diagram of steps of a discontinuous reception DRX processing method according to an embodiment of this application; 
         FIG.  3    is a second schematic diagram of steps of a discontinuous reception DRX processing method according to an embodiment of this application; 
         FIG.  4    is a first schematic structural diagram of a discontinuous reception DRX processing apparatus according to an embodiment of this application; 
         FIG.  5    is a second schematic structural diagram of a discontinuous reception DRX processing apparatus according to an embodiment of this application; 
         FIG.  6    is a schematic structural diagram of a communications device according to an embodiment of this application; 
         FIG.  7    is a schematic structural diagram of a terminal according to an embodiment of this application; and 
         FIG.  8    is a schematic structural diagram of a network-side device according to an embodiment of this application. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     The following clearly describes the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Apparently, the described embodiments are only some rather than all of the embodiments of this application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of this application shall fall within the protection scope of this application. 
     In the specification and claims of this application, the terms such as “first”, “second”, and the like are intended to distinguish between similar objects but do not necessarily indicate a specific order or sequence. It should be understood that the data used in this way is interchangeable in appropriate circumstances so that the embodiments of this application can be implemented in other orders than the order illustrated or described herein, and “first”, “second”, and the like are usually for distinguishing same-type objects but not limiting the number of objects, for example, a first object may be one or multiple. In addition, “and/or” in this specification and claims indicates at least one of connected objects, and the symbol “/” generally indicates that the associated objects are in an “or” relationship. 
     It should be noted that technologies described in the embodiments of this application are not limited to a long term evolution (LTE)/LTE-advanced (LTE-A) system, and may also be used in various wireless communications systems, such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), single-carrier frequency-division multiple access (SC-FDMA), and other systems. The terms “system” and “network” in the embodiments of this application are usually used interchangeably. Techniques described herein may be used in the afore-mentioned systems and radio technologies, and may also be used in other systems and radio technologies. However, in the following descriptions, a new radio (NR) system is described for an illustration purpose, and NR terms are used in most of the following descriptions, although these technologies may also be applied to other applications than an NR system application, for example, the 6-th generation (6G) communications system. 
       FIG.  1    is a block diagram of a wireless communications system to which the embodiments of this application are applicable. The wireless communications system includes a terminal  11  and a network-side device  12 . The terminal  11  may also be referred to as a terminal device or user equipment (UE), and the terminal  11  may be a terminal-side device, such as a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer or a notebook computer, a personal digital assistant (PDA), a palmtop computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (MID), a wearable device or vehicle user equipment (VUE), or pedestrian user equipment (PUE). The wearable device includes: a wrist band, earphones, glasses, or the like. It should be noted that a type of the terminal  11  is not limited in the embodiments of this application. The network-side device  12  may be a base station or a core network. The base station may be referred to as an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a NodeB, an evolved NodeB (eNB), a home NodeB, a home evolved NodeB, a WLAN access point, a Wi-Fi node, a transmission and reception Point (TRP), or another appropriate term in the art. Provided that a same technical effect is achieved, the base station is not limited to a technical term. It should be noted that in the embodiments of this application, the base station in the NR system is merely used as an example, and a type of the base station is not limited. 
     With reference to the accompanying drawings, the following describes in detail, by using some embodiments and application scenarios thereof, a discontinuous reception DRX processing method and apparatus, a terminal, and a network-side device provided in the embodiments of this application. 
     As shown in  FIG.  2   , an embodiment of this application further provides a discontinuous reception DRX processing method, applied to a terminal and including the following step. 
     Step  201 : Send DRX configuration preference information to a network-side device; where the DRX configuration preference information is used to assist the network-side device in configuring at least one of sidelink SL DRX or Uu DRX for the terminal. 
     In this embodiment of this application, the DRX configuration preference information includes at least one of the following: 
     Uu DRX being preferentially guaranteed or SL DRX being preferentially guaranteed; 
     whether switching of SL resource allocation mode is allowed, where the SL resource allocation mode includes a base-station-scheduled mode and a terminal autonomous selection mode, and working does not need to rely on Uu DRX in the terminal autonomous selection mode; 
     power saving being preferentially guaranteed; 
     quality of service QoS being preferentially guaranteed; 
     offset relative to SL DRX on-duration, that is, the terminal may wake up at a time with an offset relative to the SL DRX on-duration to check whether there are scheduling resources for the base station scheduling mode; or 
     whether wake-up of SL DRX is allowed, that is, whether the terminal needs to additionally monitor wake-up signals at the physical layer to determine whether to wake up in the SL DRX on-duration. 
     In an optional embodiment, before step  201 , the method further includes: 
     determining whether a first condition for sending the DRX configuration preference information is satisfied. 
     Correspondingly, step  201  includes: 
     in a case that the first condition is satisfied, sending the DRX configuration preference information to the network-side device; otherwise, skipping sending the DRX configuration preference information to the network-side device. 
     The first condition includes at least one of the following: 
     an indication of allowing the terminal to send DRX assistance information having been received; 
     a prohibit timer being not running or having expired; or 
     DRX assistance information having changed, for example, SL DRX assistance information has changed and/or Uu DRX assistance information has changed. 
     The DRX assistance information includes at least the DRX configuration preference information; and the DRX assistance information may also include configuration information of DRX. The DRX includes: SL DRX and/or Uu DRX. 
     It should be noted that the indication of allowing the terminal to send the DRX assistance information and the time length of the prohibit timer are configured by the network-side device, so that the network can control a process of reporting the DRX assistance information by the terminal. This prevents the terminal from frequently reporting the DRX assistance information, achieving the purpose of power saving. 
     In another optional embodiment, the method further includes: 
     receiving configuration information sent by the network-side device, where the configuration information includes at least one of the following: 
     first indication information, where the first indication information is used to indicate whether the terminal is allowed to send the DRX assistance information, for example, a 1-bit indication is introduced, “1 or true” indicates that the terminal is allowed to send the DRX assistance information, and “0 or false” indicates that the terminal is not allowed to send the DRX assistance information; or vice versa; or 
     a time length of the prohibit timer, where, for example, after the terminal sends the DRX configuration preference information, the prohibit timer is started, and then whether the prohibit timer is running is determined each time before sending the DRX configuration preference information is triggered; and if the prohibit timer is running, sending the DRX assistance information is not allowed, or if the prohibit timer is not running or has expired, the terminal is allowed to send the DRX assistance information. 
     In an optional embodiment, the receiving configuration information sent by the network-side device includes: 
     receiving a radio resource control RRC reconfiguration message or system information block SIB sent by the network-side device, where the RRC reconfiguration message or the SIB carries the configuration information. 
     In another optional embodiment, step  201  includes: 
     if the first condition is satisfied when the terminal is in a current serving cell, sending the DRX configuration preference information in the current serving cell; 
     or, 
     if the first condition is not satisfied when the terminal is in the current serving cell, reselecting to or handing over to a cell satisfying the first condition, and sending the DRX configuration preference information. 
     The first condition includes at least one of the following: 
     an indication of allowing the terminal to send DRX assistance information having been received; 
     a prohibit timer being not running or having expired; or 
     DRX assistance information having changed, for example, SL DRX assistance information has changed and/or Uu DRX assistance information has changed. 
     For example, for a terminal in a connected state, the terminal first determines whether the first condition is satisfied; and if yes, sends DRX configuration preference information in the current serving cell; or if not, hands over to a cell satisfying the condition, and sends the DRX configuration preference information. 
     For another example, for a terminal in an idle state or an inactive state, the terminal first determines whether the first condition is satisfied; and if yes, initiates an RRC connection establishment or recovery procedure in the current serving cell and then sends the DRX configuration preference information; or if not, performs cell reselection to reselect to a cell satisfying the first condition, initiates an RRC connection establishment or recovery procedure, and then sends the DRX configuration preference information. 
     To sum up, in this embodiment of this application, the terminal reports the DRX configuration preference information to the network-side device to assist the network-side device in configuring at least one of SL DRX or Uu DRX for the terminal, so as to implement alignment processing of two types of DRX configurations and alignment failure handling. This ensures normal operation of SL DRX, and achieves the purpose of power saving for SL terminals. 
     As shown in  FIG.  3   , an embodiment of this application further provides a discontinuous reception DRX processing method, applied to a network-side device and including the following steps. 
     Step  301 : Receive DRX configuration preference information sent by a terminal. 
     Step  302 : Configure at least one of sidelink SL DRX or Uu DRX for the terminal according to the DRX configuration preference information. 
     Optionally, in a case that alignment of SL DRX and Uu DRX can be implemented according to the DRX configuration preference information, the network-side device configures at least one of SL DRX or Uu DRX for the terminal. 
     In this embodiment of this application, the DRX configuration preference information includes at least one of the following: 
     Uu DRX being preferentially guaranteed or SL DRX being preferentially guaranteed; 
     whether switching of SL resource allocation mode is allowed, where the SL resource allocation mode includes a base-station-scheduled mode and a terminal autonomous selection mode, and working does not need to rely on Uu DRX in the terminal autonomous selection mode; 
     power saving being preferentially guaranteed; 
     quality of service QoS being preferentially guaranteed; 
     offset relative to SL DRX on-duration, that is, the terminal may wake up at a time with an offset relative to the SL DRX on-duration to check whether there are scheduling resources for the base station scheduling mode; or 
     whether wake-up of SL DRX is allowed, that is, whether the terminal needs to additionally monitor wake-up signals at the physical layer to determine whether to wake up in the SL DRX on-duration. 
     It should be noted that, in this embodiment of this application, the network-side device can configure for the terminal the indication of allowing the terminal to send DRX assistance information and the time length of the prohibit timer, so that the network can control a process of reporting the DRX assistance information by the terminal. This prevents the terminal from frequently reporting the DRX assistance information, achieving the purpose of power saving. 
     The method further includes: 
     sending configuration information, where the configuration information includes at least one of the following: 
     first indication information, where the first indication information is used to indicate whether the terminal is allowed to send the DRX assistance information, and the DRX assistance information includes at least the DRX configuration preference information; for example, a 1-bit indication is introduced, “1 or true” indicates that the terminal is allowed to send the DRX assistance information, and “0 or false” indicates that the terminal is not allowed to send the DRX assistance information; or vice versa; or 
     a time length of the prohibit timer, where, for example, after the terminal sends the DRX configuration preference information, the prohibit timer is started, and then whether the prohibit timer is running is determined before each time sending the DRX configuration preference information is triggered; and if the prohibit timer is running, sending the DRX assistance information is not allowed, or if the prohibit timer is not running or has expired, the terminal is allowed to send the DRX assistance information. 
     In an optional embodiment, the sending configuration information includes: 
     sending a radio resource control RRC reconfiguration message or system information block SIB, where the RRC reconfiguration message or the SIB carries the configuration information. 
     In another optional embodiment, in a case that alignment of the SL DRX and the Uu DRX fails, the method further includes: 
     sending second indication information to the terminal according to the DRX configuration preference information, where the second indication information is used to indicate at least one of the following: 
     indicating switching an SL resource allocation mode of the terminal from a base-station-scheduled mode to a terminal autonomous selection mode; or 
     indicating the terminal disabling SL DRX function or Uu DRX function. 
     To sum up, in this embodiment of this application, the terminal reports the DRX configuration preference information to the network-side device to assist the network-side device in configuring at least one of SL DRX or Uu DRX for the terminal, so as to implement alignment processing of two types of DRX configurations and alignment failure handling. This ensures normal operation of SL DRX, and achieves the purpose of power saving for SL terminals. 
     It should be noted that the discontinuous reception DRX processing method in the embodiments of this application may be executed by a discontinuous reception DRX processing apparatus, or by a control module for executing the discontinuous reception DRX processing method in the discontinuous reception DRX processing apparatus. In the embodiments of this application, the discontinuous reception DRX processing apparatus provided by the embodiments of this application is described by using the discontinuous reception DRX processing method being executed by the discontinuous reception DRX processing apparatus as an example. 
     As shown in  FIG.  4   , an embodiment of this application further provides a discontinuous reception DRX processing apparatus, applied to a terminal and including: 
     a first sending module  401 , configured to send DRX configuration preference information to a network-side device; where the DRX configuration preference information is used to assist the network-side device in configuring at least one of sidelink SL DRX or Uu DRX for the terminal. 
     In an optional embodiment, the DRX configuration preference information includes at least one of the following: 
     Uu DRX being preferentially guaranteed or SL DRX being preferentially guaranteed; 
     whether switching of SL resource allocation mode is allowed; 
     power saving being preferentially guaranteed; 
     quality of service QoS being preferentially guaranteed; 
     offset relative to SL DRX on-duration; or 
     whether wake-up of SL DRX is allowed. 
     In an optional embodiment, the apparatus further includes: 
     a determining module, configured to determine whether a first condition for sending the DRX configuration preference information is satisfied. 
     In an optional embodiment, the first sending module includes: 
     a first sending submodule, configured to: in a case that the first condition is satisfied, send the DRX configuration preference information to the network-side device. 
     In an optional embodiment, the first condition includes at least one of the following: 
     an indication of allowing the terminal to send DRX assistance information having been received; 
     a prohibit timer being not running or having expired; or 
     DRX assistance information having changed; where 
     the DRX assistance information includes at least the DRX configuration preference information. 
     In an optional embodiment, the apparatus further includes: 
     a first receiving module, configured to receive configuration information sent by the network-side device, where the configuration information includes at least one of the following: 
     first indication information, where the first indication information is used to indicate whether the terminal is allowed to send the DRX assistance information; or 
     a time length of the prohibit timer. 
     In an optional embodiment, the first receiving module includes: 
     a first receiving submodule, configured to: receive a radio resource control RRC reconfiguration message or system information block SIB sent by the network-side device, where the RRC reconfiguration message or the SIB carries the configuration information. 
     In an optional embodiment, the first sending module includes: 
     a second sending submodule, configured to: if the first condition is satisfied when the terminal is in a current serving cell, send the DRX configuration preference information in the current serving cell; or 
     configured to: if the first condition is not satisfied when the terminal is in the current serving cell, reselect to or hand over to a cell satisfying the first condition, and send the DRX configuration preference information. 
     In this embodiment of this application, the terminal reports the DRX configuration preference information to the network-side device to assist the network-side device in configuring at least one of SL DRX or Uu DRX for the terminal, so as to implement alignment processing of two types of DRX configurations and alignment failure handling. This ensures normal operation of SL DRX, and achieves the purpose of power saving for SL terminals. 
     It should be noted that the discontinuous reception DRX processing apparatus provided by this embodiment of this application is an apparatus capable of executing the discontinuous reception DRX processing method, and all embodiments of the discontinuous reception DRX processing method are applicable to the apparatus, with the same or similar beneficial effects achieved. 
     As shown in  FIG.  5   , an embodiment of this application further provides a discontinuous reception DRX processing apparatus  500 , applied to a network-side device and including: 
     a second receiving module  501 , configured to receive DRX configuration preference information sent by a terminal; and 
     a configuration module  502 , configured to configure at least one of sidelink SL DRX or Uu DRX for the terminal according to the DRX configuration preference information. 
     In an optional embodiment, the DRX configuration preference information includes at least one of the following: 
     Uu DRX being preferentially guaranteed or SL DRX being preferentially guaranteed; 
     whether switching of SL resource allocation mode is allowed; 
     power saving being preferentially guaranteed; 
     quality of service QoS being preferentially guaranteed; 
     offset relative to SL DRX on-duration; or whether wake-up of SL DRX is allowed. 
     In an optional embodiment, the apparatus further includes: 
     a second sending module, configured to send configuration information, where the configuration information includes at least one of the following: 
     first indication information, where the first indication information is used to indicate whether the terminal is allowed to send DRX assistance information, and the DRX assistance information includes at least the DRX configuration preference information; or 
     a time length of the prohibit timer. 
     In an optional embodiment, the second sending module includes: 
     a third sending submodule, configured to send a radio resource control RRC reconfiguration message or system information block SIB, where the RRC reconfiguration message or the SIB carries the configuration information. 
     In an optional embodiment, in a case that alignment of SL DRX and Uu DRX fails, the apparatus further includes: 
     a third sending module, configured to send second indication information to the terminal according to the DRX configuration preference information, where the second indication information is used to indicate at least one of the following: 
     indicating switching an SL resource allocation mode of the terminal from a base-station-scheduled mode to a terminal autonomous selection mode; or 
     indicating the terminal disabling SL DRX function or Uu DRX function. 
     In this embodiment of this application, the terminal reports the DRX configuration preference information to the network-side device to assist the network-side device in configuring at least one of SL DRX or Uu DRX for the terminal, so as to implement alignment processing of two types of DRX configurations and alignment failure handling. This ensures normal operation of SL DRX, and achieves the purpose of power saving for SL terminals. 
     It should be noted that the discontinuous reception DRX processing apparatus provided by this embodiment of this application is an apparatus capable of executing the discontinuous reception DRX processing method, and all embodiments of the discontinuous reception DRX processing method are applicable to the apparatus, with the same or similar beneficial effects achieved. 
     The discontinuous reception DRX processing apparatus in this embodiment of this application may be an apparatus, or may be a component, an integrated circuit, or a chip in a terminal. The apparatus may be a mobile electronic device or a non-mobile electronic device. For example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palmtop computer, an in-vehicle electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, a personal digital assistant (PDA), or the like. The non-mobile electronic device may be a server, a network-attached storage (NAS), a personal computer (PC), a television (TV), a teller machine, a self-service machine, or the like. This is not limited in the embodiments of this application. 
     The discontinuous reception DRX processing apparatus in this embodiment of this application may be an apparatus having an operating system. The operating system may be an Android operating system, an iOS operating system, or other possible operating systems, and is not limited in the embodiments of this application. 
     The discontinuous reception DRX processing apparatus provided in this embodiment of this application is capable of implementing the processes in the method embodiments in  FIG.  1    to  FIG.  3   . To avoid repetition, details are not described herein again. 
     Optionally, as shown in  FIG.  6   , an embodiment of this application further provides a communications device  600 , including a processor  601 , a memory  602 , and a program or instructions stored in the memory  602  and executable on the processor  601 . For example, when the communications device  600  is a terminal and when the program or the instructions are executed by the processor  601 , the processes of the foregoing embodiment of the DRX processing method are implemented, with the same technical effects achieved. When the communications device  600  is a network-side device and when the program or the instructions are executed by the processor  601 , the processes of the foregoing embodiment of the DRX processing method are implemented, with the same technical effects achieved. To avoid repetition, details are not described herein again. 
       FIG.  7    is a schematic diagram of a hardware structure of a terminal for implementing the embodiments of this application. 
     The terminal  700  includes but is not limited to components such as a radio frequency unit  701 , a network module  702 , an audio output unit  703 , an input unit  704 , a sensor  705 , a display unit  706 , a user input unit  707 , an interface unit  708 , a memory  709 , and a processor  710 . 
     Persons skilled in the art can understand that the terminal  700  may further include a power supply (for example, a battery) supplying power to the components, and the power supply may be logically connected to the processor  710  through a power management system. In this way, functions such as charge management, discharge management, and power consumption management are implemented by using the power management system. The structure of the terminal shown in  FIG.  7    does not constitute any limitation on the terminal. The terminal may include more or fewer components than shown in  FIG.  7   , or a combination of some components, or the components disposed differently. Details are not described herein again. 
     It can be understood that in this embodiment of this application, the input unit  704  may include a graphics processing unit (GPU)  7041  and a microphone  7042 . The graphics processing unit  7041  processes image data of a still picture or video obtained by an image capture apparatus (such as a camera) in a video capture mode or an image capture mode. The display unit  706  may include a display panel  7061 , and the display panel  7061  may be configured in a form of a liquid crystal display, an organic light-emitting diode, and the like. The user input unit  707  may include a touch panel  7071  and other input devices  7072 . The touch panel  7071  is also referred to as a touchscreen. The touch panel  7071  may include two parts: a touch detection apparatus and a touch controller. The other input devices  7072  may include but are not limited to a physical keyboard, a function key (such as a volume control key or a power on/off key), a trackball, a mouse, a joystick, and the like. Details are not described herein. 
     In this embodiment of this application, the radio frequency unit  701  receives downlink data from a network-side device, and then sends the downlink data to the processor  710  for processing; and also sends uplink data to the network-side device. Generally, the radio frequency unit  701  includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. 
     The memory  709  may be configured to store software programs or instructions and various data. The memory  709  may include a program or instruction storage area and a data storage area. The program or instruction storage area may store an operating system, an application program or instructions required by at least one function (for example, a sound playback function or an image playback function), and the like. In addition, the memory  709  may include a high-speed random access memory, and may further include a non-volatile memory. The non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory, for example, at least one disk storage device, a flash memory device, or another volatile solid-state storage device. 
     The processor  710  may include one or more processing units. Optionally, an application processor and a modem processor may be integrated in the processor  710 . The application processor primarily processes an operating system, user interfaces, application programs or instructions, and the like. The modem processor primarily processes radio communication, for example, being a baseband processor. It can be understood that the modem processor may alternatively be not integrated in the processor  710 . 
     The radio frequency unit  701  is configured to send DRX configuration preference information to a network-side device; where the DRX configuration preference information is used to assist the network-side device in configuring at least one of sidelink SL DRX or Uu DRX for the terminal. 
     In this embodiment of this application, the terminal reports the DRX configuration preference information to the network-side device to assist the network-side device in configuring at least one of SL DRX or Uu DRX for the terminal, so as to implement alignment processing of two types of DRX configurations and alignment failure handling. This ensures normal operation of SL DRX, and achieves the purpose of power saving for SL terminals. 
     It should be noted that the terminal provided in this embodiment of this application is a terminal capable of executing the discontinuous reception DRX processing method, and all embodiments of the foregoing discontinuous reception DRX processing method are applicable to the terminal, with the same or similar beneficial effects achieved. 
     Illustratively, an embodiment of this application further provides a network-side device. As shown in  FIG.  8   , the network device  800  includes an antenna  81 , a radio frequency apparatus  82 , and a baseband apparatus  83 . The antenna  81  is connected to the radio frequency apparatus  82 . In an uplink direction, the radio frequency apparatus  82  receives information by using the antenna  81 , and sends the received information to the baseband apparatus  83  for processing. In a downlink direction, the baseband apparatus  83  processes to-be-sent information, and sends the information to the radio frequency apparatus  82 ; and the radio frequency apparatus  82  processes the received information and then sends the information out by using the antenna  81 . 
     The frequency band processing apparatus may be located in the baseband apparatus  83 . The method performed by the network-side device in the foregoing embodiments may be implemented in the baseband apparatus  83 , and the baseband apparatus  83  includes a processor  84  and a memory  85 . 
     The baseband apparatus  83  may include, for example, at least one baseband processing unit, where a plurality of chips are disposed on the baseband processing unit. As shown in  FIG.  8   , one of the chips is, for example, the processor  84 , connected to the memory  85 , to invoke a program in the memory  85  to perform the operation of the network-side device shown in the foregoing method embodiment. 
     The baseband apparatus  83  may further include a network interface  86 , configured to exchange information with the radio frequency apparatus  82 , where the interface is, for example, a common public radio interface (CPRI). 
     Illustratively, the network-side device in this embodiment of this application further includes: instructions or a program stored in the memory  85  and executable on the processor  84 . The processor  84  invokes the instructions or program in the memory  85  to execute the method executed by the modules shown in  FIG.  8   , with the same technical effects achieved. To avoid repetition, details are not described herein again. 
     An embodiment of the present invention further provides a non-transitory readable storage medium, where a program or instructions are stored in the non-transitory readable storage medium. When the program or instructions are executed by a processor, the processes of the foregoing discontinuous reception DRX processing method embodiment can be implemented, with same technical effects achieved. To avoid repetition, details are not described herein again. 
     The processor is a processor in the electronic device described in the foregoing embodiments. The non-transitory readable storage medium includes a non-transitory computer-readable storage medium, for example, a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disc. 
     An embodiment of this application further provides a chip, where the chip includes a processor and a communications interface, the communications interface is coupled to the processor, and the processor is configured to run a program or instructions to implement the processes of the foregoing discontinuous reception DRX processing method embodiments, with the same technical effects achieved. To avoid repetition, details are not repeated herein. 
     It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-level chip, a system chip, a chip system, a system-on-chip, or the like. 
     An embodiment of this application provides a computer program product, where the computer program product is stored in a non-volatile storage medium, and when being executed by at least one processor, the computer program product is configured to implement the processes of the foregoing discontinuous reception DRX processing method embodiments, with the same technical effects achieved. To avoid repetition, details are not repeated herein. 
     It may be understood that the embodiments described in this disclosure may be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, a module, a unit, a submodule, a subunit, and the like may be implemented in one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing devices (DSP Device, DSPD), programmable logic devices (PLD), field-programmable gate arrays (FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, and other electronic units for performing the functions described in this application, or a combination thereof. 
     It should be noted that the terms “include”, “comprise”, or any of their variants are intended to cover a non-exclusive inclusion, such that a process, a method, an article, or an apparatus that includes a list of elements not only includes those elements but also includes other elements that are not expressly listed, or further includes elements inherent to such process, method, article, or apparatus. In absence of more constraints, an element preceded by “includes a . . . ” does not preclude the existence of other identical elements in the process, method, article, or apparatus that includes the element. In addition, it should be noted that the scope of the method and the apparatus in the embodiments of this application is not limited to executing the functions in an order shown or discussed, but may also include executing the functions in a substantially simultaneous manner or in a reverse order, depending on the functions involved. For example, the described methods may be performed in an order different from that described, and steps may alternatively be added, omitted, or combined. In addition, features described with reference to some examples may be combined in other examples. 
     According to the foregoing description of the implementations, a person skilled in the art may clearly understand that the methods in the foregoing embodiments may be implemented by using software in combination with a necessary common hardware platform, and certainly may alternatively be implemented by using hardware. However, in most cases, the former is a preferred implementation. Based on such an understanding, the technical solutions of this application essentially or the part contributing to the prior art may be implemented in a form of a software product. The software product is stored in a storage medium (such as a ROM/RAM, a magnetic disk, or an optical disc), and includes several instructions for instructing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, a network device, or the like) to perform the methods described in the embodiments of this application. 
     The foregoing describes the embodiments of this application with reference to the accompanying drawings. However, this application is not limited to the foregoing embodiments. The foregoing embodiments are merely illustrative rather than restrictive. As instructed by this application, persons of ordinary skill in the art may develop many other manners without departing from principles of this application and the protection scope of the claims, and all such manners fall within the protection scope of this application. 
     The above is only the implementation mode of the application and not intended to limit the scope of protection of the application. Any variations or replacements apparent to those skilled in the art within the technical scope disclosed by the application shall fall within the scope of protection of the application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.