Method, device and user equipment for configuring sidelink parameters

Abstract

The present application discloses a sidelink parameter configuration method, an apparatus, a user equipment, a chip, and a storage medium, the method including: determining a first DRX configuration of the first user equipment; and performing discontinuous reception for data transmitted by a second user equipment according to the first DRX configuration. In this way, by planning a DRX configuration range in advance based on a predetermined configuration rule, it is possible to limit selectable DRX configurations to a small range, and by the first user equipment determining the first DRX configuration according to the predetermined configuration rule, it is possible to solve the problem that different user equipments specify different DRX configurations for the first user equipment, and it is possible to avoid the first user equipment always being in an On duration state and reduce power consumption.

Description

[Technical Field]

[0001] The present invention relates to the field of communications, and in particular to a method, device, user equipment, chip and storage medium for configuring sidelink parameters. [Background technology]

[0002] Discontinuous Reception (DRX) is an energy-saving and power-saving method used in uplink and downlink systems, in which a User Equipment (UE) monitors the PDCCH channel according to a discontinuous reception cycle (DRX Cycle) set by the network.

[0003] However, the existing DRX mechanism is a DRX mechanism for uplink and downlink systems, and the current standard has not yet discussed how to use DRX in all communication systems realized by sidelink (SL) transmission technology, such as Device to Device (D2D), Vehicle to Vehicle (V2V), and Vehicle to Everything (V2X). Summary of the Invention

[0004] To solve the above technical problems, embodiments of the present invention provide a method, an apparatus, a user equipment, a chip, and a storage medium for configuring sidelink parameters.

[0005] According to a first aspect, an embodiment of the present application provides a method for configuring sidelink parameters, applied to a first user equipment, the method including: determining a first DRX configuration of the first user equipment according to a predetermined configuration rule; and performing discontinuous reception on data transmitted by a second user equipment according to the first DRX configuration.

[0006] According to a second aspect, an embodiment of the present application provides a method for configuring sidelink parameters, applied to a second user equipment, the method including: determining a first DRX configuration of a first user equipment according to a predetermined configuration rule, generating a configuration response, and transmitting the configuration response to the first user equipment, thereby causing the first user equipment to perform discontinuous reception on data transmitted by the second user equipment according to the first DRX configuration determined by the configuration response.

[0007] According to a third aspect, an embodiment of the present application provides an apparatus for configuring sidelink parameters, applied to a first user equipment, the apparatus comprising: a first processing unit configured to determine a first DRX configuration of the first user equipment according to a predetermined configuration rule; and a first communication unit configured to perform discontinuous reception on data transmitted by a second user equipment according to the first DRX configuration.

[0008] According to a fourth aspect, an embodiment of the present application provides an apparatus for configuring sidelink parameters, applied to a second user equipment (UE), the apparatus comprising: a second processing unit configured to determine a first DRX configuration of a first user equipment (UE) according to a predetermined configuration rule and to generate a configuration response; and a second communication unit configured to transmit the configuration response to the first user equipment (UE), thereby causing the first user equipment (UE) to perform discontinuous reception on data transmitted by the second user equipment (UE) according to the first DRX configuration determined by the configuration response.

[0009] According to a fifth aspect, an embodiment of the present application provides a first user device comprising a processor and a memory, the memory being configured to store a computer program, and the processor being configured to execute the method of the first aspect or any of its embodiments by calling and executing the computer program stored in the memory.

[0010] According to a sixth aspect, embodiments of the present application provide a second user device comprising a processor and a memory, the memory being configured to store a computer program, and the processor being configured to execute the method of the second aspect or any of its embodiments by calling and executing the computer program stored in the memory.

[0011] According to a seventh aspect, there is provided a chip configured to carry out the method of any one of the first to fourth aspects above or each embodiment thereof.

[0012] Specifically, the chip includes a processor that calls up and executes a computer program from memory, thereby causing the device in which the chip is mounted to execute the method of any one of the first and second aspects or their respective embodiments.

[0013] In an eighth aspect, there is provided a computer-readable storage medium having stored thereon a computer program, the computer program causing a computer to perform the method of any one of the first to second aspects above or each embodiment thereof.

[0014] According to the technical solution of an embodiment of the present invention, by planning the DRX setting range in advance based on a predetermined setting rule, the selectable DRX settings can be limited to a small range, and the first user equipment determines the first DRX setting according to the predetermined setting rule, thereby solving the problem that different user equipments specify different DRX settings for the first user equipment, preventing the first user equipment from always being in the On duration state, and reducing power consumption. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 1 is a schematic diagram of a discontinuous period. [Figure 2] FIG. 2 is a schematic diagram of a first device-to-device communication mode. [Figure 3] FIG. 10 is a schematic diagram of a second device-to-device communication mode. [Figure 4] 1 is a schematic diagram of a device-to-device communication framework. [Figure 5] FIG. 1 is a schematic diagram of a comparison of two different discontinuous periods. [Figure 6] 1 is a first exemplary flowchart of a method for configuring sidelink parameters according to an embodiment of the present application; [Figure 7] FIG. 1 is a schematic diagram of a DRX setting according to an embodiment of the present invention. [Figure 8] 10 is a second exemplary flowchart of a method for configuring sidelink parameters according to an embodiment of the present application; [Figure 9] 10 is an exemplary flowchart of a method for determining a first DRX configuration according to an embodiment of the present application. [Figure 10] 1 is a schematic structural diagram of the physical layer of the NR sidelink. [Figure 11] 10 is a third exemplary flowchart of a method for configuring sidelink parameters according to an embodiment of the present application; [Figure 12] 10 is a fourth exemplary flowchart of a method for configuring sidelink parameters according to an embodiment of the present application; [Figure 13] 5 is a fifth exemplary flowchart of a method for configuring sidelink parameters according to an embodiment of the present application; [Figure 14] 6 is a sixth exemplary flowchart of a method for configuring sidelink parameters according to an embodiment of the present application; [Figure 15] FIG. 1 is a first schematic structural diagram of a sidelink parameter configuration device according to an embodiment of the present application; [Figure 16] FIG. 2 is a second schematic structural diagram of a sidelink parameter configuration device according to an embodiment of the present application; [Figure 17] 2 is a schematic structural diagram of a first user equipment according to an embodiment of the present application; [Figure 18] FIG. 2 is a schematic structural diagram of a second user equipment according to an embodiment of the present application; [Figure 19] 1 is a schematic structural diagram of a chip according to an embodiment of the present invention. [Figure 20]1 is a schematic structural diagram of a communication system according to an embodiment of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, the technical solutions in the embodiments of the present invention will be described with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

[0017] As shown in Figure 1, in an uplink and downlink system, a UE detects a physical downlink control channel (PDCCH) only during the activation duration (On Duration) of a DRX cycle, and can enter a dormant state for the remaining duration of the DRX cycle. As shown in Figure 1, the DRX cycle is periodic. The network can configure only a one-level DRX cycle, or a two-level DRX cycle including a long DRX cycle and a short DRX cycle. Figure 1 shows the case where only a one-level DRX cycle exists. When only a one-level DRX cycle is configured, the DRX cycle refers to the long DRX cycle, that is, the network configures only the long DRX cycle.

[0018] The technical solutions of the embodiments of the present application can be applied to all communication systems realized by sidelink (SL) transmission technology, such as device-to-device (D2D), vehicle-to-vehicle (V2V), and vehicle-to-everything (V2X). The SL transmission technology is different from the method of receiving or transmitting communication data via a base station in a conventional cellular system. This D2D direct communication method has higher spectral efficiency and lower transmission delay. For D2D communication, 3GPP defines two transmission modes: Mode A and Mode B.

[0019] Mode A (see Figure 2): The transmission resources of device 1 and device 2 are allocated by the base station, and the two devices transmit data on the sidelink based on the resources allocated by the base station. The base station can allocate resources to the devices for one-time transmission or semi-static transmission.

[0020] Mode B (see FIG. 3): Two devices each select one resource from the resource pool to transmit data. Specifically, the devices can select a transmission resource from the resource pool through sensing or random selection.

[0021] The above detection method refers to the device excluding corresponding resources in the resource selection window according to resource detection within a certain period in the past (including the encoding of the first sidelink control information sent by other devices and the measurement of SL-RSRP), and selecting resources from the remaining resources that are not excluded for transmission.

[0022] In SL, the transmitter sets a DRX pattern for the receiver. Assuming that a unicast or multicast service exists between one receiver and multiple transmitters, if multiple transmitters set different DRX patterns for the same receiver, the receiver may be constantly in a monitoring state and unable to enter a dormant state. As shown in FIG. 4, UE A and UE B are each unicast-connected to UE C. UE A and UE B are unaware of each other's existence and each sets a DRX pattern for UE C, denoted as DRX Pattern 1 and DRX Pattern 2. When DRX Pattern 1 and DRX Pattern 2 are orthogonal (see FIG. 5), UE C is always in an on-duration state, constantly monitoring the physical sidelink control channel (PSCCH) and / or the physical sidelink shared channel (PSSCH). Therefore, UE C cannot enter a dormant state to save power, resulting in high power consumption.

[0023] It should be understood that the terms "system" and "network" are always used interchangeably herein. The term "and / or" herein is simply an association relationship describing related objects, and indicates that three relationships can exist, for example, A and / or B represents three cases: A exists independently, A and B exist simultaneously, and B exists independently. Furthermore, the symbol " / " herein generally indicates that the related objects before and after are in an "or" relationship.

[0024] The present embodiment provides a method for configuring sidelink parameters, which is applied to a user equipment (UE), which may be any UE that communicates via a sidelink. In order to more fully understand the features and technical contents of the embodiments of the present invention, the following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings. The accompanying drawings are for reference purposes only and are not intended to limit the embodiments of the present invention.

[0025] An embodiment of the present invention provides a method for configuring sidelink parameters, applied to a first user equipment. FIG. 6 is a first exemplary flowchart of the method for configuring sidelink parameters according to the embodiment. As shown in FIG. 6 , the method may include the following steps:

[0026] In step 101, a first DRX configuration of the first user equipment is determined according to a predetermined configuration rule.

[0027] It should be noted that the predetermined configuration rule is used to limit a selection range of the DRX configuration information of the first user equipment, and by planning the DRX configuration range in advance based on the predetermined configuration rule, the selectable DRX configuration can be limited to a relatively small range. In this way, when the first user equipment as a receiver performs discontinuous reception for other user equipments, it can select a first DRX configuration within the relatively small DRX configuration range, thereby avoiding the first user equipment being in a continuous monitoring state and being unable to enter a dormant state due to different user equipments specifying different DRX configurations for the first user equipment, ensuring that the first user equipment has a sufficient dormant period, and saving power consumption of the first user equipment.

[0028] In practical applications, the predetermined setting rule may be any rule that limits the selection range of the DRX setting.

[0029] In some embodiments, determining a first DRX configuration of the first user equipment according to a predetermined configuration rule includes determining a recommended DRX configuration of the first user equipment, and determining the first DRX configuration of the first user equipment according to the recommended DRX configuration.

[0030] Here, the predetermined configuration rule is that the second user equipment (UE2) generates a first DRX configuration according to the recommended DRX configuration of the first user equipment (UE1), the second user equipment sends the first DRX configuration to the first user equipment, and the first user equipment performs discontinuous reception according to the first DRX configuration. The recommended DRX configuration of the first user equipment may be configured or pre-configured by the network equipment for the first user equipment, or the recommended DRX configuration depends on the implementation of the first user equipment. For example, when the first user equipment is connected to another user equipment, the recommended DRX configuration may be obtained according to the DRX configuration corresponding to the other connection.

[0031] It should be noted that the first user equipment functions as a receiver and the second user equipment functions as a transmitter, and the receiver can perform discontinuous reception for data from multiple transmitters, that is, the first user equipment corresponds to one or more second user equipments, and the DRX configuration corresponding to each connection between the first user equipment and the second user equipment can be determined by adopting the parameter setting method according to the embodiment of the present application.

[0032] In some other embodiments, determining the first DRX configuration of the first user equipment according to the predetermined configuration rule comprises receiving the first DRX configuration determined by the second user equipment according to geographical location information or located cell information.

[0033] Here, the predetermined configuration rule is that the second user equipment determines the first DRX configuration according to the geographic location or the cell where it is located. In practical application, the network can divide the geographic location into multiple geographical regions (ZONE) in advance, then specify one or more DRX configurations for each geographical region, determine which geographical region (indicated by ZONE or ZONE ID) the second user equipment is located in according to the geographical location of the second user equipment, and determine the corresponding one or more DRX configurations according to the ZONE or ZONE ID (geographical region identifier). If multiple DRX configurations are determined, one of the multiple DRX configurations can be determined as the first DRX configuration. Alternatively, the network may divide cells into multiple cell groups in advance, then specify one or more DRX configurations for each cell group, determine which cell group (indicated by a cell group or a cell group ID) the second user equipment is located in according to cell information about the cell in which the second user equipment is located, and then specify one or more corresponding DRX configurations according to the cell group or cell group ID (cell group identifier). If multiple DRX configurations are determined, the network may specify one or more DRX configurations for a cell directly, and the second user equipment may specify one or more corresponding DRX configurations according to the cell or cell ID (cell ID) in which the second user equipment is located, and if multiple DRX configurations are determined, the network may specify one or more DRX configurations as the first DRX configuration.

[0034] In this way, by planning the DRX setting range in advance based on the predetermined setting rule, it is possible to limit the selectable DRX setting to a relatively small range. When the first user equipment as a receiver performs discontinuous reception for other user equipments, it can select the first DRX setting within the relatively small DRX setting range, thereby avoiding a situation in which the first user equipment is in a continuous monitoring state and is unable to enter a dormant state due to different user equipments specifying different DRX settings for the first user equipment, ensuring that the first user equipment has a sufficient dormant period, and saving power consumption of the first user equipment.

[0035] In step 102, discontinuous reception is performed on data transmitted by the second user equipment according to the first DRX configuration.

[0036] In some embodiments, the DRX configuration (including the recommended DRX configuration, the first DRX configuration, the second DRX configuration, and other DRX configurations in the embodiments of the present application) includes at least one parameter from among a first parameter, a second parameter, a third parameter, a fourth parameter, a fifth parameter, and a sixth parameter; wherein the first parameter is used to indicate a first time length, and the first time length is a time length for the first user equipment to monitor a physical sidelink control channel (PSCCH) and / or a physical sidelink shared channel (PSSCH) in a DRX cycle; The second parameter is used to indicate a second time length, and the second time length is a time length for which the first user equipment needs to continue monitoring the PSCCH and / or PSSCH after monitoring the PSCCH and / or PSSCH; the third parameter is used to indicate a third time length and / or a first offset amount, the third time length being a time length of a long DRX cycle, and the first offset amount being a time offset amount relative to time domain reference point 1; the fourth parameter is used to indicate a second offset amount, and the second offset amount is an offset amount at a time slot level of a long DRX cycle and / or a short DRX cycle; the fifth parameter is used to indicate a fourth time length, and the fourth time length is a time length of a short DRX cycle; The sixth parameter is used to indicate a first period number, and the first user equipment prepares to enter a long DRX period if it has not monitored the PSCCH and / or PSSCH in the short DRX period indicated by the first period number.

[0037] For example, the first parameter (drx-onDurationTimer) is used to indicate the duration of the On duration state. When a two-level DRX cycle is set, the duration of the On duration state in the two-level DRX cycle is the same. Whether the Long DRX cycle or the Short DRX cycle is used, the On duration state is followed by a sleep state. This parameter is expressed in units of 1 / 32 milliseconds or milliseconds.

[0038] The second parameter (drx-InactivityTimer) is used to indicate the length of time that the UE should continue to monitor uplink and downlink scheduling or transmission after receiving the PSCCH and / or PSSCH. Assuming that the UE has monitored the PSCCH and / or PSSCH in the last time slot of the On duration period, the UE enters the dormant state in the next time slot. If there is no data scheduled in the PSCCH and / or PSSCH in the current time slot, or if the retransmission indicated in the PSCCH and / or PSSCH has not been completed in the current time slot, the UE will not be able to receive data after entering the dormant state. Therefore, after monitoring the PSCCH and / or PSSCH, the UE should wait a certain time before entering the dormant state (i.e., continue to monitor uplink and downlink scheduling or transmission). This length of time is indicated by this parameter. The unit of this parameter is milliseconds.

[0039] The third parameter (drx-LongCycleStartOffset) is used to indicate the time length of the Long DRX Cycle and its offset (denoted as drxStartOffset) relative to time domain reference point 1. Optionally, the above time domain reference point 1 is SFN 0, the starting boundary of SFN 0, the first time slot in SFN 0, or the first subframe in SFN 0. drxStartOffset is used to determine the time domain start position of the Long DRX Cycle and / or the Short DRX Cycle. The unit of these two parameters is milliseconds.

[0040] The fourth parameter (drx-SlotOffset) is used to indicate the time slot-level offset of the long DRX cycle and / or short DRX cycle. Since the units of the above parameters are all milliseconds, in NR, 1 millisecond (1 subframe) may include several time slots. This is related to the subcarrier spacing. For example, if the subcarrier spacing is 15 kHz, 30 kHz, 60 kHz, or 120 kHz, 1 millisecond includes 1, 2, 4, or 8 time slots. This parameter is introduced in NR to indicate which time slot the start position of the long DRX cycle and / or short DRX cycle is located in. The unit of this parameter is 1 / 32 millisecond.

[0041] The fifth parameter (drx-ShortCycle) is used to indicate the time length of the Short DRX Cycle. The unit of this parameter is milliseconds. It should be noted that the fifth parameter is an optional setting parameter.

[0042] The sixth parameter (drx-ShortCycleTimer) is used to indicate how many Short DRX Cycles the UE must have not monitored the PSCCH and / or PSSCH before preparing to enter the Long DRX Cycle. It should be noted that the sixth parameter is an optional configuration parameter.

[0043] The following takes an example to explain the operation mechanism of the above DRX configuration in a sidelink system.

[0044] Assume that the subcarrier spacing is 15 kHz, one subframe is equal to 1 millisecond, and one subframe contains only one time slot.

[0045] The DRX configuration parameters are set as follows: drx-onDurationTimer is set to 2ms, drx-InactivityTimer is set to 2ms, in drx-LongCycleStartOffset, Long DRX cycle is set to 10ms, drxStartOffset is set to 1ms, drx-SlotOffset is set to 0ms, drx-ShortCycle is set to 5ms, and drx-ShortCycleTimer is set to 2.

[0046] 7 is a schematic diagram of DRX configuration according to an embodiment of the present application. As shown in FIG. 7, SFN (System Frame Number) is an abbreviation for system frame number, On Duration Timer is used to time a first duration within a first parameter, and Inactivity Timer is used to time a second duration within a second parameter. The PSCCH and / or PSSCH indicate that PSCCH monitoring, or PSSCH monitoring, or PSCCH and PSSCH monitoring is performed in the On duration state. Specifically, subframe 1 of radio frame 0 is denoted as (0,1). Since a UE (referring to a first user equipment) satisfies the condition for entering a long DRX cycle at (0,1), it is in the On duration state at (0,1) and (0,2). The UE detects the PSCCH and / or PSSCH at (0,2) and starts the inactivity timer, thereby continuing to monitor the PSCCH and / or PSSCH at (0,3) and (0,4). After the inactivity timer expires, the UE first prepares to enter the short DRX cycle (SDC). At (0,6), the UE meets the conditions for entering the short DRX cycle and then enters the short DRX cycle multiple times. Because drx-ShortCycleTimer is 2, if the UE does not monitor the PSCCH and / or PSSCH for two consecutive short DRX cycles (i.e., (0,6) to (1,5)), the UE prepares to enter the long DRX cycle (LDC). At (2,1), the UE meets the conditions for entering the long DRX cycle, and the PSCCH and / or PSSCH are not detected during that cycle. At (3,1), the UE re-enters the long DRX cycle and begins the on duration state. At (3,1), the UE monitors the PSCCH and / or PSSCH, restarts the inactivity timer, and enters the short DRX cycle.

[0047] In some embodiments, the condition for entering the above Long DRX Cycle is satisfied when [SFN*10+subframe number] mod (time length of Long DRX Cycle) = drxStartOffset. That is, the periodic start subframe position of the Long DRX Cycle is [SFN*10+subframe number] mod (time length of Long DRX Cycle) = drxStartOffset. For example, in Figure 7, the UE can enter the Long DRX Cycle at subframes (0,1), (1,1), (2,1), and (3,1).

[0048] The above condition for entering the short DRX cycle is satisfied by [SFN*10+subframe number] mod (time length of short DRX cycle) = drxStartOffset mod (time length of short DRX cycle). That is, the periodic start subframe position of the short DRX cycle is [SFN*10+subframe number] mod (time length of short DRX cycle) = drxStartOffset mod (time length of short DRX cycle). For example, in Figure 7, the UE can enter the short DRX cycle at subframes (0,1), (0,6), (1,1), (1,6), (2,1), (2,6), (3,1), and (3,6).

[0049] Optionally, the specific start position of a particular timeslot granularity can be determined by the subframe start position and then offset according to the configuration parameter drx-SlotOffset described above.

[0050] According to the above technical solution, by planning the DRX setting range in advance based on a predetermined setting rule, the selectable DRX settings can be limited to a small range, and the first user equipment determines the first DRX setting according to the predetermined setting rule, thereby solving the problem that different user equipments specify different DRX settings for the first user equipment, preventing the first user equipment from always being in the On duration state, and reducing power consumption.

[0051] The following provides a further example of how to determine the first DRX configuration in the present embodiment. FIG. 8 is a second exemplary flowchart of a method for configuring sidelink parameters according to the present embodiment. As shown in FIG. 8, the method may include the following steps:

[0052] In step 201, a recommended DRX configuration for the first user equipment is determined.

[0053] Here, the predetermined configuration rule is that the second user equipment (also referred to as UE2) generates a configuration response according to the recommended DRX configuration of the first user equipment (also referred to as UE1), the second user equipment sends the configuration response to the first user equipment, and the first user equipment performs discontinuous reception according to the first DRX configuration.

[0054] Specifically, determining the recommended DRX configuration of the first user equipment includes at least the following three ways:

[0055] Method 1: Determining the recommended DRX setting for the first user equipment includes, when at least one connection exists between the first user equipment and at least one other user equipment, determining the recommended DRX setting according to at least one DRX setting corresponding to the at least one connection.

[0056] That is, when the first user equipment determines a recommended DRX configuration for the second user equipment, it may use at least one DRX configuration corresponding to at least one connection as a reference.

[0057] In some embodiments, determining the recommended DRX setting according to at least one DRX setting corresponding to the at least one connection includes: if one connection exists, using a target parameter of the corresponding one DRX setting as a target parameter of the recommended DRX setting; if at least two connections exist, using a target parameter of one DRX setting of at least two corresponding DRX settings as a target parameter of the recommended DRX setting; or if at least two connections exist, determining a target parameter of the recommended DRX setting according to at least two target parameters of at least two corresponding DRX settings.

[0058] That is, if the number of connections is different, the determination method is also different. When there is one connection, there is only one reference DRX setting, and the target parameter in the recommended DRX setting is determined according to the target parameter in the one reference DRX setting, where the target parameter is any parameter in the DRX setting, for example, the target parameter is the first parameter, the second parameter, the third parameter, the fourth parameter, the fifth parameter or the sixth parameter.

[0059] When two or more connections exist, the target parameter of one of the at least two DRX settings is used as the target parameter of the recommended DRX setting, or the target parameter of the recommended DRX setting is determined according to two or more target parameters of the at least two DRX settings. Exemplarily, the target parameter of any or a specific DRX setting of the two DRX settings can be selected.

[0060] In some embodiments, determining a target parameter in the recommended DRX configuration according to at least two target parameters of the at least two DRX configurations comprises: using the maximum value of the at least two target parameters as the target parameter in the recommended DRX configuration; or using the minimum value of the at least two target parameters as the target parameter in the recommended DRX configuration; or using an average value of the at least two target parameters as the target parameter in the recommended DRX configuration; or using the most numerous parameter of the at least two target parameters as the target parameter in the recommended DRX configuration; or using the greatest common divisor of the at least two target parameters as a target parameter in the recommended DRX configuration; or Using the least common multiple of the at least two target parameters as a target parameter in the recommended DRX configuration.

[0061] In some embodiments, the DRX configuration (including the recommended DRX configuration, the first DRX configuration, the second DRX configuration, and other DRX configurations in the embodiments of the present application) includes at least one parameter from among a first parameter, a second parameter, a third parameter, a fourth parameter, a fifth parameter, and a sixth parameter; wherein the first parameter is used to indicate a first time length, and the first time length is a time length for the first user equipment to monitor a PSCCH and / or a PSSCH in a DRX cycle; The second parameter is used to indicate a second time length, and the second time length is a time length for which the first user equipment needs to continue monitoring the PSCCH and / or PSSCH after monitoring the PSCCH and / or PSSCH; the third parameter is used to indicate a third time length and / or a first offset amount, the third time length being a time length of a long DRX cycle, and the first offset amount being a time offset amount relative to time domain reference point 1; the fourth parameter is used to indicate a second offset amount, and the second offset amount is an offset amount at a time slot level of a long DRX cycle and / or a short DRX cycle; the fifth parameter is used to indicate a fourth time length, and the fourth time length is a time length of a short DRX cycle; The sixth parameter is used to indicate a first period number, and the first user equipment prepares to enter a long DRX period if it has not monitored the PSCCH and / or the PSSCH in the short DRX period indicated by the first period number.

[0062] Here, the method for determining the target parameter is also a method for determining the time length or offset amount in the target parameter.

[0063] Specifically, when determining the first parameter, the first time length may depend on a setting or pre-setting by the network, or may depend on a predetermined value specified in the UE implementation or standard.

[0064] Alternatively, assuming that UE1 already has one unicast or multicast connection (denoted as connection 1) with another UE, the first time length is the first time length indicated by the DRX setting corresponding to connection 1.

[0065] Alternatively, assuming that UE1 already has multiple unicast or multicast connections (denoted as connections 1-N) with other UEs, the first length of time may be the first length of time indicated by a DRX configuration corresponding to one of connections 1-N, or the first length of time may be the maximum, minimum, average, greatest common divisor, or least common multiple of the first lengths of time indicated by the DRX configurations corresponding to the multiple connections in connections 1-N, or the value most frequently indicated by the DRX configurations corresponding to the multiple connections in connections 1-N. Connections 1-N may be partly unicast and partly multicast.

[0066] When determining the second parameter, the second time length may depend on a setting or pre-setting by the network, or may depend on a predetermined value specified in the UE implementation or standard.

[0067] Alternatively, assuming that UE1 already has one unicast or multicast connection (denoted as connection 1) with another UE, the second time length is the second time length indicated by the DRX setting corresponding to connection 1.

[0068] Alternatively, assuming that UE1 already has multiple unicast or multicast connections (denoted as connections 1-N) with other UEs, the second length of time may be the second length of time indicated by a DRX configuration corresponding to one of connections 1-N, or the second length of time may be the maximum, minimum, average, greatest common divisor, or least common multiple of the second lengths of time indicated by the DRX configurations corresponding to the multiple connections in connections 1-N, or the value most frequently indicated by the DRX configurations corresponding to the multiple connections in connections 1-N. Connections 1-N may be partly unicast and partly multicast.

[0069] When determining the third parameter, the above-mentioned time domain reference point 1 is SFN 0, the starting boundary of SFN 0, the first time slot in SFN 0, or the first subframe in SFN 0. The above-mentioned first offset amount is used to determine the time domain starting position of the long DRX cycle and / or the short DRX cycle.

[0070] Alternatively, the third period of time may be dependent on a configuration or pre-configuration by the network, or may be dependent on a predetermined value specified in the UE implementation or standard.

[0071] Alternatively, assuming that UE1 already has one unicast or multicast connection (denoted as connection 1) with another UE, the third time length is the third time length indicated by the DRX setting corresponding to connection 1.

[0072] Alternatively, assuming that UE1 already has multiple unicast or multicast connections (denoted as connections 1-N) with other UEs, the third length of time may be the third length of time indicated by the DRX configuration corresponding to one of connections 1-N, or may be the maximum, minimum, average, greatest common divisor, or least common multiple of the third lengths of time indicated by the DRX configurations corresponding to the multiple connections in connections 1-N, or may be the value most frequently indicated by the DRX configurations corresponding to the multiple connections in connections 1-N (Connections 1-N may be partly unicast and partly multicast). Optionally, the first offset amount may depend on a configuration or pre-configuration by the network, or on a predetermined value specified in the UE implementation or standard. Optionally, the first offset amount is 0. Optionally, assuming that UE1 already has one unicast or multicast connection (denoted as connection 1) with another UE, the first offset amount is the first offset amount indicated by the DRX configuration corresponding to connection 1.

[0073] Alternatively, assuming that UE1 already has multiple unicast or multicast connections (denoted as connections 1-N) with other UEs, the first offset amount is the first offset amount indicated by the DRX configuration corresponding to one of connections 1-N, or the first offset amount is the maximum, minimum, or average of the first offset amounts indicated by the DRX configurations corresponding to the multiple connections in connections 1-N, or the value most frequently indicated by the DRX configurations corresponding to the multiple connections in connections 1-N. Connections 1-N may be partly unicast and partly multicast.

[0074] When determining the fourth parameter, the second offset amount may depend on a setting or pre-setting by the network, or on a predetermined value specified in the UE implementation or standard. Optionally, the second offset amount is 0. Optionally, assuming that UE1 already has one unicast or multicast connection (denoted as connection 1) with another UE, the second offset amount is the second offset amount indicated by the DRX configuration corresponding to connection 1.

[0075] Alternatively, assuming that UE1 already has multiple unicast or multicast connections (denoted as connections 1-N) with other UEs, the second offset amount is the second offset amount indicated by the DRX configuration corresponding to one of connections 1-N, or the second offset amount is the maximum, minimum, or average value of the second offset amounts indicated by the DRX configurations corresponding to the multiple connections in connections 1-N, or the value most frequently indicated by the DRX configurations corresponding to the multiple connections in connections 1-N. Connections 1-N may be partly unicast and partly multicast.

[0076] Assuming that the subcarrier spacing is 30 kHz and one subframe includes two time slots, the start positions of the long DRX cycle determined according to the third parameter are subframe 5, subframe 10, and subframe 15. If the length of the value indicated by the fourth parameter is equal to one time slot, the start positions of the long DRX cycle are the second time slot of subframe 5, the second time slot of subframe 10, and the second time slot of subframe 15.

[0077] When determining the fifth parameter, the fourth time length may depend on a setting or pre-setting by the network, or may depend on a predetermined value specified in the UE implementation or standard.

[0078] Alternatively, assuming that UE1 already has one unicast or multicast connection (denoted as connection 1) with another UE, and the DRX configuration corresponding to connection 1 indicates a fourth time length, the fourth time length is the fourth time length indicated by the DRX configuration corresponding to connection 1. Exemplarily, the unicast or multicast connection refers to a PC5-RRC connection.

[0079] Alternatively, assuming that UE1 already has multiple unicast or multicast connections (denoted as connections 1-N) with other UEs, the fourth length of time may be the fourth length of time indicated by a DRX configuration corresponding to one of connections 1-N, or may be the maximum, minimum, average, greatest common divisor, or least common multiple of the fourth lengths of time indicated by the DRX configurations corresponding to the multiple connections in connections 1-N, or may be the value most frequently indicated by the DRX configurations corresponding to the multiple connections in connections 1-N. Connections 1-N may be partly unicast and partly multicast.

[0080] When determining the fifth parameter, the first period number depends on the setting or pre-setting by the network, or depends on the implementation of the UE or a predetermined value specified in a standard. Optionally, the first period number is 0. Optionally, assuming that UE1 already has one unicast or multicast connection (denoted as connection 1) with another UE and the DRX configuration corresponding to connection 1 indicates the first period number, the first period number is the first period number indicated by the DRX configuration corresponding to connection 1.

[0081] Alternatively, assuming that UE1 already has multiple unicast or multicast connections (denoted as connections 1-N) with other UEs, the first period number may be the first period number indicated by the DRX configuration corresponding to one of connections 1-N, or the first period number may be the maximum, minimum, or average value of the first period numbers indicated by the DRX configurations corresponding to the multiple connections in connections 1-N, or the value most frequently indicated by the DRX configurations corresponding to the multiple connections in connections 1-N. Connections 1-N may be partly unicast and partly multicast.

[0082] Manner 2: Determining the recommended DRX configuration of the first user equipment includes determining the recommended DRX configuration according to a configuration or pre-configuration by a network device.

[0083] Specifically, the recommended DRX setting may be determined by periodic or aperiodic configuration by the network. For example, the above-mentioned network pre-configuration may involve the user equipment using a DRX setting hardened on a chip before shipping as the recommended DRX setting, or the network may configure one DRX setting for the UE when the UE is within the coverage range of a base station, and even if the UE moves to an area not covered by the network, the UE may continue to use the DRX setting previously configured by the base station as the recommended DRX setting. Alternatively, the recommended DRX setting may be determined by implementation in the first user equipment, and the first user equipment itself may determine the recommended DRX setting according to specific communication conditions.

[0084] Manner 3: Determining the recommended DRX configuration of the first user equipment includes determining the recommended DRX configuration according to geographical location information or located cell information of the first user equipment.

[0085] In this way, by planning the DRX setting range in advance based on the predetermined setting rule, it is possible to limit the selectable DRX setting to a relatively small range. When the first user equipment as a receiver performs discontinuous reception for other user equipments, it can select the first DRX setting within the relatively small DRX setting range, thereby avoiding a situation in which the first user equipment is in a continuous monitoring state and is unable to enter a dormant state due to different user equipments specifying different DRX settings for the first user equipment, ensuring that the first user equipment has a sufficient dormant period, and saving power consumption of the first user equipment.

[0086] In some embodiments, determining the recommended DRX configuration according to geographical location information or located cell information of the first user equipment includes: finding at least one corresponding DRX configuration from a first correspondence relationship according to geographical location information of the first user equipment and determining the recommended DRX configuration from the at least one DRX configuration; or finding at least one corresponding DRX configuration from a second correspondence relationship according to cell information in which the first user equipment is located and determining the recommended DRX configuration from the at least one DRX configuration, where the first correspondence relationship includes a correspondence relationship between geographical location information and DRX configurations, and the second correspondence relationship includes a correspondence relationship between cell information and DRX configurations.

[0087] In some embodiments, determining the recommended DRX configuration from the at least one DRX configuration includes selecting one DRX configuration from the at least one DRX configuration as the recommended DRX configuration according to a service type, a service periodicity, or a service priority of a service to be received, or randomly selecting one DRX configuration from the at least one DRX configuration as the recommended DRX configuration.

[0088] In practical application, the network can divide the geographical location into multiple geographical regions (ZONE) in advance, and then specify one or more DRX configurations for each geographical region. According to the geographical location of the first user equipment, the network determines which geographical region (indicated by ZONE or ZONE ID) the first user equipment is located in, and then determines corresponding one or more DRX configurations according to the ZONE or ZONE ID (geographical region identifier). If multiple DRX configurations are determined, the network can determine one of the multiple DRX configurations as the recommended DRX configuration. Alternatively, the network may divide cells into multiple cell groups in advance, and then specify one or more DRX configurations for each cell group. The network may determine which cell group (indicated by a cell group or a cell group ID) the first user equipment is located in according to cell information about the cell in which the first user equipment is located, and then determine one or more corresponding DRX configurations according to the cell group or cell group ID. If multiple DRX configurations are determined, the network may determine one of the multiple DRX configurations as the recommended DRX configuration. Alternatively, the network may directly specify one or more DRX configurations for a cell, and the first user equipment may determine one or more corresponding DRX configurations according to the cell or cell ID in which the first user equipment is located, and if multiple DRX configurations are determined, the network may determine one of the multiple DRX configurations as the recommended DRX configuration.

[0089] Exemplarily, UE1 determines one or more DRX configurations according to a first correspondence relationship, where the first correspondence relationship includes a correspondence relationship between a geographical region ZONE or ZONE ID and one or more DRX configurations. The second correspondence relationship includes a correspondence relationship between a cell or cell ID and one or more DRX configurations. The DRX configurations include one or more of the first to sixth parameters. The first and second correspondence relationships are set or pre-set by the network.

[0090] Furthermore, UE1 first determines its geographic location according to the positioning system, determines which geographic area ZONE it is located in according to its geographic location, and then determines one or more DRX configurations according to the ZONE or ZONE ID and the first correspondence. If UE1 determines multiple DRX configurations, UE1 determines one DRX configuration from the multiple DRX configurations. For example, UE1 randomly determines one DRX configuration from the multiple DRX configurations, or UE1 determines one DRX configuration from the multiple DRX configurations according to the type of service to be received (e.g., periodic service or aperiodic service), the periodicity of the service to be received, or the priority of the service to be received. The division information of the above geographic areas, such as the length and width of each ZONE, the absolute or relative offsets of longitude and latitude, and the reference points of longitude and latitude, is configured or pre-configured by the network.

[0091] UE1 determines one or more DRX configurations according to the cell in which it is located or the ID of the cell in which it is located and the second correspondence relationship. If UE1 determines multiple DRX configurations, UE1 determines one DRX configuration from the multiple DRX configurations. For example, UE1 randomly determines one DRX configuration from the multiple DRX configurations, or UE1 determines one DRX configuration from the multiple DRX configurations according to the type of service to be received (e.g., periodic service or aperiodic service), the periodicity of the service to be received, or the priority of the service to be received.

[0092] In step 202, a first DRX configuration of the first user equipment is determined according to the recommended DRX configuration.

[0093] In some embodiments, when the above-mentioned method 3 is employed to determine the recommended DRX configuration, determining a first DRX configuration of the first user equipment according to the recommended DRX configuration includes using the recommended DRX configuration as the first DRX configuration. That is, when the above-mentioned method 3 is employed to determine the recommended DRX configuration, the recommended DRX configuration is used as the first DRX configuration.

[0094] When the above method 3 is adopted to determine the recommended DRX configuration, step 202 and step 203 may be replaced by performing discontinuous reception on the data transmitted by the second user equipment according to the recommended DRX configuration.

[0095] FIG. 9 is an exemplary flowchart of a method for determining a first DRX setting according to an embodiment of the present application. As shown in FIG. 9, determining the first DRX setting of the first user equipment according to the recommended DRX setting may include the following steps:

[0096] In step 301, one or more recommended DRX configurations are sent to the second user equipment.

[0097] In other words, the first user equipment determines one or more recommended DRX settings according to the above-mentioned method for determining the recommended DRX setting, and determines the first DRX setting by transmitting the determined one or more recommended DRX settings to the second user equipment.

[0098] Optionally, if a connection with another UE exists, send one or more recommended DRX configurations to the second terminal device.

[0099] Optionally, if there is no connection with another UE, send one or more recommended DRX configurations to the second terminal device.

[0100] In step 302, a setup response is received from the second user equipment.

[0101] In some embodiments, receiving a configuration response from the second user equipment includes receiving a first DRX configuration generated by the second user equipment according to the recommended DRX configuration and / or the second DRX configuration.

[0102] Specifically, receiving a first DRX configuration generated by the second user equipment according to the recommended DRX configuration and / or the second DRX configuration includes receiving a first DRX configuration generated by the second user equipment according to the recommended DRX configuration when the second user equipment determines that the recommended DRX configuration is available, or receiving a first DRX configuration generated by the second user equipment according to the second DRX configuration when the second user equipment determines that the recommended DRX configuration is unavailable, or receiving a first DRX configuration generated by the second user equipment according to the recommended DRX configuration and the second DRX configuration.

[0103] It should be mentioned that the first DRX configuration generated according to the recommended DRX configuration and the second DRX configuration may or may not be related to whether the recommended DRX configuration is available, that is, the second user equipment may directly generate the first DRX configuration according to the recommended DRX configuration and the second DRX configuration, or may generate the first DRX configuration according to the recommended DRX configuration and the second DRX configuration if it determines that the recommended DRX configuration is available.

[0104] In some embodiments, the second DRX configuration is configured or pre-configured by a network device.

[0105] In some embodiments, the method for the second user equipment to determine whether the recommended DRX configuration is available may be to determine whether the length of the long DRX cycle or the short DRX cycle of the recommended DRX configuration satisfies the service requirements of the second user equipment. For example, determine whether the long DRX cycle or the short DRX cycle indicated by the recommended DRX configuration is smaller than the period of the service, and if it is smaller than the period of the service, determine that the service requirements of the second user equipment are satisfied; otherwise, determine that the service requirements of the second user equipment are not satisfied; or if the long DRX cycle or the short DRX cycle indicated by the recommended DRX configuration is equal to or smaller than the period of the service, determine that the service requirements of the second user equipment are satisfied; otherwise, determine that the service requirements of the second user equipment are not satisfied.

[0106] In some embodiments, when a recommended DRX configuration is sent to the second user equipment, receiving a configuration response from the second user equipment includes receiving a first response from the second user equipment when the second user equipment determines that the recommended DRX configuration is available, where the first response is used to indicate that the recommended DRX configuration is available, for example, the first response includes identification information indicating that the recommended DRX configuration is available or identification information indicating that the recommended DRX configuration is unavailable.

[0107] In some embodiments, when multiple recommended DRX configurations are sent to the second user equipment, receiving a configuration response from the second user equipment includes receiving a second response from the second user equipment, where the second response is used to indicate a target DRX configuration of one of the multiple recommended DRX configurations, for example, the second response includes index information of the target DRX configuration or does not include any index information, where the target DRX configuration is the first DRX configuration.

[0108] In step 303, the first DRX configuration is determined according to the configuration response.

[0109] Specifically, if the configuration response is the first DRX configuration, step 302 and step 303 may be replaced by receiving the first DRX configuration sent by the second user equipment.

[0110] If the configuration response is a first response and it is determined according to the first response that a recommended DRX setting is available, the recommended DRX setting is used as the first DRX setting, and if it is determined that the recommended DRX setting is unavailable, the DRX setting configured or pre-configured by the network is used as the first DRX setting, or the first DRX setting is obtained according to the implementation of the first user equipment or according to the provisions of the standard.

[0111] If the setting is a second response and the second response includes index information, determine the first DRX setting according to the index information; if the second response does not include index information, use the DRX setting configured or pre-configured by the network as the first DRX setting, or obtain the first DRX setting according to the implementation of the first user equipment or the provisions of the standard.

[0112] Exemplarily, the configuration response can be transmitted to the first user equipment by carrying a PC5 Radio Resource Control (PC5 RRC) connection, a MAC Control Element (MAC CE), second sidelink control information, first sidelink control information, or a Physical Sidelink Feedback Channel (PSFCH).

[0113] In step 203, discontinuous reception is performed on data transmitted by the second user equipment according to the first DRX configuration.

[0114] In some embodiments, the DRX configuration (including the recommended DRX configuration, the first DRX configuration, the second DRX configuration, and other DRX configurations in the embodiments of the present application) includes at least one parameter from among a first parameter, a second parameter, a third parameter, a fourth parameter, a fifth parameter, and a sixth parameter; wherein the first parameter is used to indicate a first time length, and the first time length is a time length for the first user equipment to monitor a physical sidelink control channel (PSCCH) and / or a physical sidelink shared channel (PSSCH) in a DRX cycle; The second parameter is used to indicate a second time length, and the second time length is a time length for which the first user equipment needs to continue monitoring the PSCCH and / or PSSCH after monitoring the PSCCH and / or PSSCH; the third parameter is used to indicate a third time length and / or a first offset amount, the third time length being a time length of a long DRX cycle, and the first offset amount being a time offset amount relative to time domain reference point 1; the fourth parameter is used to indicate a second offset amount, and the second offset amount is an offset amount at a time slot level of a long DRX cycle and / or a short DRX cycle; the fifth parameter is used to indicate a fourth time length, and the fourth time length is a time length of a short DRX cycle; The sixth parameter is used to indicate a first period number, and the first user equipment prepares to enter a long DRX period if it has not monitored the PSCCH and / or the PSSCH in the short DRX period indicated by the first period number.

[0115] For the specific implementation process, please refer to FIG. 7 and the corresponding description, and the description will not be repeated here.

[0116] According to the above technical solution, the first user equipment can determine the first DRX setting according to the recommended DRX setting. In this way, when the first user equipment as a receiving side performs discontinuous reception on data of a different second user equipment, the selectable DRX setting can be limited to a small range, thereby solving the problem that different user equipments specify different DRX settings for the first user equipment, preventing the first user equipment from always being in the On duration state, and reducing power consumption.

[0117] Figure 10 shows a schematic structure of the NR sidelink physical layer. As shown in Figure 10, the physical layer includes a PSCCH and a PSSCH. The PSCCH is used to transmit first sidelink control information, and the PSSCH is used to carry data and second sidelink control information. The PSCCH and PSSCH are transmitted in the same timeslot. The first sidelink control information mainly includes a field related to resource detection, which facilitates other UEs to acquire the time-frequency resources indicated by the first sidelink control information by encoding the first sidelink control information. This allows resource collisions to be avoided by excluding the corresponding resources in the resource selection process. The second sidelink control information mainly includes a field related to data demodulation, which facilitates other UEs to demodulate the data in the corresponding PSSCH.

[0118] In practical application, UE2 sends a configuration response to UE1 via PC5-RRC connection, MAC CE, secondary sidelink control information, primary sidelink control information, or PSFCH, and UE1 performs discontinuous reception according to the received DRX configuration.

[0119] UE1 is connected to other UEs in a unicast or multicast manner, and UE1 acts as a receiver. In practical application, the unicast or multicast connection is a PC5 RRC connection.

[0120] In some embodiments, when UE1 sends a recommended DRX configuration to UE2, the recommended DRX configuration may be carried by the PC5-RRC connection, the MAC CE, or the second sidelink control information.

[0121] FIG. 11 is a third exemplary flowchart of a method for configuring sidelink parameters according to an embodiment of the present application. As shown in FIG. 11 , the method may include the following steps:

[0122] In step 401, the first DRX configuration determined by the second user equipment according to geographical location information or located cell information is received.

[0123] In some embodiments, receiving the first DRX configuration determined by the second user equipment according to geographical location information or located cell information comprises receiving the first DRX configuration found by the second user equipment from a first correspondence relationship according to geographical location information, or receiving the first DRX configuration found by the second user equipment from a second correspondence relationship according to located cell information, wherein the first correspondence relationship comprises a correspondence relationship between geographical location information and DRX configurations, and the second correspondence relationship comprises a correspondence relationship between cell information and DRX configurations.

[0124] In practical application, the predetermined configuration rule here is that the second user equipment determines the first DRX configuration according to the geographical location or the cell it is located in. In practical application, the network can divide the geographical location into multiple geographical regions (ZONE) in advance, then specify one or more DRX configurations for each geographical region, determine which geographical region (indicated by ZONE or ZONE ID) the second user equipment is located in according to the geographical location of the second user equipment, and determine the corresponding one or more DRX configurations according to the ZONE or ZONE ID (geographical region identifier). If multiple DRX configurations are determined, one of the multiple DRX configurations can be determined as the first DRX configuration. Alternatively, the network may divide cells into multiple cell groups in advance, then specify one or more DRX configurations for each cell group, determine which cell group (indicated by a cell group or a cell group ID) the second user equipment is located in according to cell information about the cell in which the second user equipment is located, and then specify one or more corresponding DRX configurations according to the cell group or cell group ID (cell group identifier). If multiple DRX configurations are determined, the network may specify one or more DRX configurations for a cell directly, and the second user equipment may specify one or more corresponding DRX configurations according to the cell or cell ID (cell ID) in which the second user equipment is located, and if multiple DRX configurations are determined, the network may specify one or more DRX configurations as the first DRX configuration.

[0125] Exemplarily, the UE2 determines one or more DRX configurations according to a first correspondence relationship, where the first correspondence relationship includes a correspondence relationship between a geographical region ZONE or ZONE ID and one or more DRX configurations. The second correspondence relationship includes a correspondence relationship between a cell or cell ID and one or more DRX configurations. The DRX configurations include one or more of the first to sixth parameters. The first and second correspondence relationships are set by the network or preset.

[0126] Furthermore, the UE2 first determines its geographic location according to the positioning system, determines which geographic area ZONE it is located in according to its geographic location, and then determines one or more DRX configurations according to the ZONE or ZONE ID and the first correspondence relationship. If the UE2 determines multiple DRX configurations, the UE2 determines one DRX configuration from the multiple DRX configurations. For example, the UE2 determines one DRX configuration from the multiple DRX configurations according to its service type (such as periodic service or aperiodic service), service periodicity, or service priority, or the UE2 randomly determines one DRX configuration from the multiple DRX configurations. The division information of the above geographic areas, such as the length and width of each ZONE, absolute or relative offsets of longitude and latitude, and reference points of longitude and latitude, is configured or pre-configured by the network.

[0127] The UE2 determines one or more DRX configurations according to the cell in which it is located or the ID of the cell in which it is located and the second correspondence relationship. If the UE2 determines multiple DRX configurations, the UE2 determines one DRX configuration from the multiple DRX configurations. For example, the UE2 determines one DRX configuration from the multiple DRX configurations according to its own service type (such as periodic service or aperiodic service), service periodicity, or service priority, or the UE2 randomly determines one DRX configuration from the multiple DRX configurations.

[0128] In practical application, UE2 transmits the determined first DRX configuration to UE1 via PC5 RRC connection, MAC CE, second sidelink control information, first sidelink control information, or sidelink feedback channel (PSFCH), and UE1 performs discontinuous reception according to the received first DRX configuration.

[0129] In step 402, discontinuous reception is performed on data transmitted by a second user equipment according to the first DRX configuration.

[0130] In some embodiments, the DRX configuration (including the recommended DRX configuration, the first DRX configuration, the second DRX configuration, and other DRX configurations in the embodiments of the present application) includes at least one parameter from among a first parameter, a second parameter, a third parameter, a fourth parameter, a fifth parameter, and a sixth parameter; wherein the first parameter is used to indicate a first time length, and the first time length is a time length for the first user equipment to monitor a physical sidelink control channel (PSCCH) and / or a physical sidelink shared channel (PSSCH) in a DRX cycle; The second parameter is used to indicate a second time length, and the second time length is a time length for which the first user equipment needs to continue monitoring the PSCCH and / or PSSCH after monitoring the PSCCH and / or PSSCH; the third parameter is used to indicate a third time length and / or a first offset amount, the third time length being a time length of a long DRX cycle, and the first offset amount being a time offset amount relative to time domain reference point 1; the fourth parameter is used to indicate a second offset amount, and the second offset amount is an offset amount at a time slot level of a long DRX cycle and / or a short DRX cycle; the fifth parameter is used to indicate a fourth time length, and the fourth time length is a time length of a short DRX cycle; The sixth parameter is used to indicate a first period number, and the first user equipment prepares to enter a long DRX period if it has not monitored the PSCCH and / or the PSSCH in the short DRX period indicated by the first period number.

[0131] For the specific implementation process, please refer to FIG. 7 and the corresponding description, and the description will not be repeated here.

[0132] According to the above technical solution, a correspondence between a geographical area or a cell and one or more DRX settings is pre-configured, and a first DRX setting is determined according to the geographical location information or cell information of the second user equipment. In this way, the second user equipment located in the same geographical area or the same cell can specify the same or similar DRX setting for the first user equipment, thereby limiting the selectable DRX settings to a small range and solving the problem that different user equipments specify different DRX settings for the first user equipment, thereby avoiding the first user equipment from always being in the On duration state and reducing power consumption.

[0133] Based on the same inventive concept, the present embodiment further provides another method for configuring sidelink parameters, applied to a second user equipment. FIG. 12 is a fourth exemplary flowchart of the method for configuring sidelink parameters according to the present embodiment. As shown in FIG. 12 , the method may include the following steps:

[0134] In step 501, a first DRX configuration of a first user equipment is determined according to a predetermined configuration rule, and a configuration response is generated.

[0135] It should be noted that the predetermined configuration rule is used to limit a selection range of the DRX configuration information of the first user equipment, and by planning the DRX configuration range in advance based on the predetermined configuration rule, the selectable DRX configuration can be limited to a relatively small range. In this way, when the first user equipment as a receiver performs discontinuous reception for other user equipments, it can select a first DRX configuration within the relatively small DRX configuration range, thereby avoiding the first user equipment being in a continuous monitoring state and being unable to enter a dormant state due to different user equipments specifying different DRX configurations for the first user equipment, ensuring that the first user equipment has a sufficient dormant period, and saving power consumption of the first user equipment.

[0136] In practical applications, the predetermined setting rule may be any rule that limits the selection range of the DRX setting.

[0137] In some embodiments, determining a first DRX configuration of a first user equipment and generating a configuration response in accordance with the predetermined configuration rule includes receiving one or more recommended DRX configurations of the first user equipment; and determining a first DRX configuration of the first user equipment according to the recommended DRX configurations and generating a configuration response.

[0138] Here, the predetermined configuration rule is that the second user equipment (UE2) generates a first DRX configuration according to the recommended DRX configuration of the first user equipment (UE1), the second user equipment sends a configuration response to the first user equipment, and the first user equipment performs discontinuous reception according to the first DRX configuration. The recommended DRX configuration of the first user equipment may be configured or pre-configured by the network equipment for the first user equipment, or the recommended DRX configuration depends on the implementation of the first user equipment, for example, when the first user equipment is connected to another user equipment, it obtains the recommended DRX configuration according to the DRX configuration corresponding to the other connection.

[0139] It should be noted that the first user equipment functions as a receiver and the second user equipment functions as a transmitter, and the receiver can perform discontinuous reception for data from multiple transmitters, that is, the first user equipment corresponds to one or more second user equipments, and the DRX configuration corresponding to each connection between the first user equipment and the second user equipment can be determined by adopting the parameter setting method according to the embodiment of the present application.

[0140] In some embodiments, determining a first DRX configuration for a first user equipment and generating a configuration response in accordance with the predetermined configuration rule includes receiving a recommended DRX configuration for the first user equipment, sending the recommended DRX configuration to a network device, receiving the first DRX configuration issued by the network device, and using the first DRX configuration as the configuration response.

[0141] Here, the predetermined setting rule is that the second user equipment reports a recommended DRX setting to the network equipment, and the network equipment determines the first DRX setting according to the recommended DRX setting, or the network equipment specifies the first DRX setting according to actual communication requirements.

[0142] Illustratively, the network device determines that the recommended DRX setting is available and generates a first DRX setting according to the recommended DRX setting, or the network device determines that the recommended DRX setting is unavailable and generates a first DRX setting according to the second DRX setting, or generates a first DRX setting according to the recommended DRX setting and the second DRX setting, or generates a first DRX setting according to the second DRX setting.

[0143] In some embodiments, determining a first DRX configuration of the first user equipment and generating a configuration response according to the predetermined configuration rule comprises determining the first DRX configuration according to geographical location information or located cell information of the second user equipment, and using the first DRX configuration as the configuration response.

[0144] Here, the predetermined configuration rule is that the second user equipment determines the first DRX configuration according to the geographical location or the cell where it is located.

[0145] In this way, by planning the DRX setting range in advance based on the predetermined setting rule, it is possible to limit the selectable DRX setting to a relatively small range. When the first user equipment as a receiver performs discontinuous reception for other user equipments, it can select the first DRX setting within the relatively small DRX setting range, thereby avoiding a situation in which the first user equipment is in a continuous monitoring state and is unable to enter a dormant state due to different user equipments specifying different DRX settings for the first user equipment, ensuring that the first user equipment has a sufficient dormant period, and saving power consumption of the first user equipment.

[0146] In step 502, the configuration response is sent to the first user equipment, causing the first user equipment to perform discontinuous reception on data transmitted by the second user equipment according to the first DRX configuration determined by the configuration response.

[0147] In some embodiments, the DRX configuration (including the recommended DRX configuration, the first DRX configuration, the second DRX configuration, and other DRX configurations in the embodiments of the present application) includes at least one parameter from among a first parameter, a second parameter, a third parameter, a fourth parameter, a fifth parameter, and a sixth parameter; wherein the first parameter is used to indicate a first time length, and the first time length is a time length for the first user equipment to monitor a physical sidelink control channel (PSCCH) and / or a physical sidelink shared channel (PSSCH) in a DRX cycle; The second parameter is used to indicate a second time length, and the second time length is a time length for which the first user equipment needs to continue monitoring the PSCCH and / or PSSCH after monitoring the PSCCH and / or PSSCH; the third parameter is used to indicate a third time length and / or a first offset amount, the third time length being a time length of a long DRX cycle, and the first offset amount being a time offset amount relative to time domain reference point 1; the fourth parameter is used to indicate a second offset amount, and the second offset amount is an offset amount at a time slot level of a long DRX cycle and / or a short DRX cycle; the fifth parameter is used to indicate a fourth time length, and the fourth time length is a time length of a short DRX cycle; The sixth parameter is used to indicate a first period number, and the first user equipment prepares to enter a long DRX period if it has not monitored the PSCCH and / or the PSSCH in the short DRX period indicated by the first period number.

[0148] For the specific implementation process, please refer to FIG. 7 and the corresponding description, and the description will not be repeated here.

[0149] According to the above technical solution, the DRX setting range is planned in advance based on a predetermined setting rule, so that the selectable DRX settings can be limited to a small range, and the second user equipment determines the first DRX setting according to the predetermined setting rule, so that the problem of different user equipments assigning different DRX settings to the first user equipment can be solved, and the first user equipment can be prevented from always being in the On duration state, thereby reducing power consumption.

[0150] The following provides further examples of how to determine the first DRX configuration in the present embodiment. FIG. 13 is a fifth exemplary flowchart of a method for configuring sidelink parameters according to the present embodiment. As shown in FIG. 13, the method may include the following steps:

[0151] In step 601, one or more recommended DRX configurations for the first user equipment are received.

[0152] It should be noted that the method for generating the recommended DRX configuration can be referred to the embodiment corresponding to the first user equipment above, and will not be described again here.

[0153] In step 602, determine a first DRX configuration of the first user equipment according to the recommended DRX configuration, and generate a configuration response.

[0154] In some embodiments, when receiving one recommended DRX configuration transmitted by the first user equipment, determining a first DRX configuration of the first user equipment according to the recommended DRX configuration and generating a configuration response includes generating a first DRX configuration according to the recommended DRX configuration and / or a second DRX configuration, and using the first DRX configuration as the configuration response.

[0155] Specifically, generating a first DRX setting according to the recommended DRX setting and / or the second DRX setting includes generating a first DRX setting according to the recommended DRX setting when it is determined that the recommended DRX setting is available, or generating a first DRX setting according to the second DRX setting when it is determined that the recommended DRX setting is unavailable, or generating a first DRX setting according to the recommended DRX setting and the second DRX setting.

[0156] It should be mentioned that the first DRX configuration generated according to the recommended DRX configuration and the second DRX configuration may or may not be related to whether the recommended DRX configuration is available, that is, the second user equipment may directly generate the first DRX configuration according to the recommended DRX configuration and the second DRX configuration, or may generate the first DRX configuration according to the recommended DRX configuration and the second DRX configuration if it determines that the recommended DRX configuration is available.

[0157] In some embodiments, the second DRX configuration is configured or pre-configured by a network device.

[0158] In some embodiments, the method by which the second user equipment determines whether the recommended DRX configuration is available may be to determine whether the length of the long DRX cycle or the short DRX cycle of the recommended DRX configuration satisfies the service requirements of the UE 2. For example, the method may determine whether the long DRX cycle or the short DRX cycle indicated by the recommended DRX configuration is smaller than the service cycle, and if it is smaller than the service cycle, determine that the service requirements of the UE 2 are met; otherwise, determine that the service requirements of the UE 2 are not met; or if the length of the long DRX cycle or the short DRX cycle of the recommended DRX configuration is equal to or shorter than the service cycle, determine that the service requirements of the UE 2 are met; otherwise, determine that the service requirements of the UE 2 are not met.

[0159] In some other embodiments, when receiving a recommended DRX configuration transmitted by the first user equipment, determining a first DRX configuration of the first user equipment according to the recommended DRX configuration and generating a configuration response includes determining that the recommended DRX configuration is available, generating a first response, and using the first response as the configuration response, where the first response is used to indicate that the recommended DRX configuration is available. For example, the first response includes identification information indicating that the recommended DRX configuration is available or identification information indicating that the recommended DRX configuration is unavailable.

[0160] In some other embodiments, when receiving multiple recommended DRX configurations transmitted by the first user equipment, determining a first DRX configuration of the first user equipment according to the recommended DRX configurations and generating a configuration response includes determining a target DRX configuration from the multiple recommended DRX configurations and generating a second response, and using the second response as the configuration response, where the second response is used to indicate one target DRX configuration of the multiple recommended DRX configurations. For example, the second response may include index information of a target DRX configuration or may not include any index information. Here, the target DRX configuration is the first DRX configuration.

[0161] In step 603, the configuration response is sent to the first user equipment.

[0162] In this embodiment, after the first user equipment receives the configuration response, the first user equipment performs discontinuous reception on the data transmitted by the second user equipment according to the first DRX configuration determined by the configuration response.

[0163] Specifically, if the configuration response is a first DRX configuration, step 602 may be replaced by determining a first DRX configuration of the first user equipment according to the recommended DRX configuration, and step 603 may be replaced by sending the first DRX configuration to the first user equipment.

[0164] If the configuration response is a first response and it is determined according to the first response that a recommended DRX setting is available, the recommended DRX setting is used as the first DRX setting, and if it is determined that the recommended DRX setting is unavailable, the DRX setting configured or pre-configured by the network is used as the first DRX setting, or the first DRX setting is obtained according to the implementation of the first user equipment or according to the provisions of the standard.

[0165] If the configuration response is a second response and the second response includes index information, determine the first DRX configuration according to the index information; if the second response does not include index information, use the DRX configuration configured or pre-configured by the network as the first DRX configuration, or obtain the first DRX configuration according to the implementation of the first user equipment or the provisions of the standard.

[0166] According to the above technical solution, the first user equipment sends a recommended DRX setting to the second user equipment, and the second user equipment determines the first DRX setting according to the recommended DRX setting. In this way, the selectable DRX setting of the second user equipment can be limited to a small range, the problem that different user equipments specify different DRX settings for the first user equipment can be solved, the first user equipment can be prevented from always being in the On duration state, and power consumption can be reduced.

[0167] FIG. 14 is a sixth exemplary flowchart of a method for configuring sidelink parameters according to an embodiment of the present application. As shown in FIG. 14 , the method may include the following steps:

[0168] In step 701, the first DRX configuration is determined according to geographical location information or located cell information of the second user equipment.

[0169] In some embodiments, determining the first DRX configuration according to geographical location information or located cell information of the second user equipment includes: finding at least one corresponding DRX configuration from a first correspondence relationship according to geographical location information and determining the first DRX configuration from the at least one DRX configuration; or finding at least one corresponding DRX configuration from a second correspondence relationship according to located cell information and determining the first DRX configuration from the at least one DRX configuration, where the first correspondence relationship includes a correspondence relationship between geographical location information and DRX configurations, and the second correspondence relationship includes a correspondence relationship between cell information and DRX configurations.

[0170] In some embodiments, determining the first DRX configuration from the at least one DRX configuration includes selecting one DRX configuration from the at least one DRX configuration as the first DRX configuration according to a service type, a service periodicity, or a service priority of a service to be transmitted, or randomly selecting one DRX configuration from the at least one DRX configuration as the first DRX configuration.

[0171] In practical application, the network can divide the geographical location into multiple geographical regions (ZONE) in advance, and then specify one or more DRX configurations for each geographical region. According to the geographical location of the second user equipment, the network determines which geographical region (indicated by ZONE or ZONE ID) the second user equipment is located in, and then determines corresponding one or more DRX configurations according to the ZONE or ZONE ID (geographical region identifier). If multiple DRX configurations are determined, the network can determine one of the multiple DRX configurations as the first DRX configuration. Alternatively, the network may divide cells into multiple cell groups in advance, then specify one or more DRX configurations for each cell group, determine which cell group (indicated by a cell group or a cell group ID) the second user equipment is located in according to cell information about the cell in which the second user equipment is located, and then specify one or more corresponding DRX configurations according to the cell group or cell group ID (cell group identifier). If multiple DRX configurations are determined, the network may specify one or more DRX configurations for a cell directly, and the second user equipment may specify one or more corresponding DRX configurations according to the cell or cell ID (cell ID) in which the second user equipment is located, and if multiple DRX configurations are determined, the network may specify one or more DRX configurations as the first DRX configuration.

[0172] Exemplarily, the UE2 determines one or more DRX configurations according to a first correspondence relationship, where the first correspondence relationship includes a correspondence relationship between a geographical region ZONE or ZONE ID and one or more DRX configurations. The second correspondence relationship includes a correspondence relationship between a cell or cell ID and one or more DRX configurations. The DRX configurations include one or more of the first to sixth parameters. The first and second correspondence relationships are set by the network or preset.

[0173] Furthermore, the UE2 first determines its geographic location according to the positioning system, determines which geographic area ZONE it is located in according to its geographic location, and then determines one or more DRX configurations according to the ZONE or ZONE ID and the first correspondence relationship. If the UE2 determines multiple DRX configurations, the UE2 determines one DRX configuration from the multiple DRX configurations. For example, the UE2 determines one DRX configuration from the multiple DRX configurations according to its service type (such as periodic service or aperiodic service), service periodicity, or service priority, or the UE2 randomly determines one DRX configuration from the multiple DRX configurations. The division information of the above geographic areas, such as the length and width of each ZONE, absolute or relative offsets of longitude and latitude, and reference points of longitude and latitude, is configured or pre-configured by the network.

[0174] The UE2 determines one or more DRX configurations according to the cell in which it is located or the ID of the cell in which it is located and the second correspondence relationship. If the UE2 determines multiple DRX configurations, the UE2 determines one DRX configuration from the multiple DRX configurations. For example, the UE2 determines one DRX configuration from the multiple DRX configurations according to its own service type (such as periodic service or aperiodic service), service periodicity, or service priority, or the UE2 randomly determines one DRX configuration from the multiple DRX configurations.

[0175] In practical application, UE2 transmits the determined DRX configuration to UE1 via PC5 RRC connection, MAC CE, second sidelink control information, first sidelink control information, or sidelink feedback channel (PSFCH), and UE1 performs discontinuous reception according to the received DRX configuration.

[0176] In step 702, the first DRX configuration is used as a configuration response.

[0177] In step 703, the setup response is sent to the first user equipment.

[0178] In this embodiment, after the first user equipment receives the configuration response, the first user equipment performs discontinuous reception on the data transmitted by the second user equipment according to the first DRX configuration determined by the configuration response.

[0179] Specifically, if the configuration response is a first DRX configuration, step 702 and step 703 may be replaced by sending the first DRX configuration to the first user equipment.

[0180] According to the above technical solution, a correspondence between a geographical area or a cell and one or more DRX settings is pre-configured, and a first DRX setting is determined according to the geographical location information or cell information of the second user equipment. In this way, the second user equipment located in the same geographical area or the same cell can specify the same or similar DRX setting for the first user equipment, thereby limiting the selectable DRX settings to a small range and solving the problem that different user equipments specify different DRX settings for the first user equipment, thereby avoiding the first user equipment from always being in the On duration state and reducing power consumption.

[0181] Based on the same inventive concept, the present embodiment further provides a device 80 for configuring sidelink parameters, applied to a first user equipment. FIG. 15 is a first schematic structural diagram of the device 80 for configuring sidelink parameters according to the present embodiment. As shown in FIG. 15 , the device 80 includes: a first processing unit 801 configured to determine a first DRX configuration of the first user equipment according to a predetermined configuration rule; a first communication unit 802 configured to perform discontinuous reception on data transmitted by a second user equipment according to the first DRX configuration.

[0182] In some embodiments, the first processing unit 801 is configured to determine a recommended DRX configuration for the first user equipment, and determine a first DRX configuration for the first user equipment according to the recommended DRX configuration.

[0183] In some embodiments, the first processing unit 801 is configured to, when at least one connection exists between the first user equipment and at least one other user equipment, determine the recommended DRX setting according to at least one DRX setting corresponding to the at least one connection.

[0184] In some embodiments, the first processing unit 801 is configured to: if one connection exists, use a target parameter of one corresponding DRX setting as a target parameter of the recommended DRX setting; if at least two connections exist, use a target parameter of one DRX setting of at least two corresponding DRX settings as a target parameter of the recommended DRX setting; or if at least two connections exist, determine the target parameter of the recommended DRX setting according to at least two target parameters of at least two corresponding DRX settings.

[0185] In some embodiments, the first processing unit 801 is configured to use the maximum value of the at least two target parameters as the target parameter in the recommended DRX configuration, or use the minimum value of the at least two target parameters as the target parameter in the recommended DRX configuration, or use the average value of the at least two target parameters as the target parameter in the recommended DRX configuration, or use one of the at least two target parameters that has the largest number as the target parameter in the recommended DRX configuration, or use the greatest common divisor of the at least two target parameters as the target parameter in the recommended DRX configuration, or use the least common multiple of the at least two target parameters as the target parameter in the recommended DRX configuration.

[0186] In some embodiments, the first processing unit 801 is configured to determine the recommended DRX configuration according to a configuration or pre-configuration by a network device.

[0187] In some embodiments, the first processing unit 801 is configured to determine the recommended DRX configuration according to geographical location information or located cell information of the first user equipment.

[0188] In some embodiments, the first processing unit 801 is configured to: find at least one corresponding DRX setting from a first correspondence relationship according to geographical location information of the first user equipment, and determine the recommended DRX setting from the at least one DRX setting; or find at least one corresponding DRX setting from a second correspondence relationship according to cell information in which the first user equipment is located, and determine the recommended DRX setting from the at least one DRX setting, where the first correspondence relationship includes a correspondence relationship between geographical location information and DRX settings, and the second correspondence relationship includes a correspondence relationship between cell information and DRX settings.

[0189] In some embodiments, the first processing unit 801 is configured to select one DRX setting from the at least one DRX setting as the recommended DRX setting according to a service type, a service periodicity, or a service priority of a service to be received, or to randomly select one DRX setting from the at least one DRX setting as the recommended DRX setting.

[0190] In some embodiments, the first processing unit 801 is configured to use the recommended DRX setting as the first DRX setting.

[0191] In some embodiments, the first communication unit 802 is configured to send one or more recommended DRX configurations to the second user equipment and receive a configuration response from the second user equipment, and the first processing unit 801 is configured to determine the first DRX configuration according to the configuration response.

[0192] In some embodiments, the first communication unit 802 is configured to receive a first DRX configuration generated by a second user equipment according to the recommended DRX configuration and / or the second DRX configuration.

[0193] In some embodiments, the first communication unit 802 is configured to: receive a first DRX configuration generated by the second user equipment according to the recommended DRX configuration when the second user equipment determines that the recommended DRX configuration is available; receive a first DRX configuration generated by the second user equipment according to the second DRX configuration when the second user equipment determines that the recommended DRX configuration is unavailable; or receive a first DRX configuration generated by the second user equipment according to the recommended DRX configuration and the second DRX configuration.

[0194] In some embodiments, the second DRX configuration is configured or pre-configured by a network device.

[0195] In some embodiments, the first communication unit 802 is configured to receive a first response from the second user equipment when the second user equipment determines that the recommended DRX configuration is available, where the first response is used to indicate that the recommended DRX configuration is available.

[0196] In some embodiments, the first communication unit 802 is configured to receive a second response from the second user equipment, where the second response is used to indicate a target DRX configuration of one of the plurality of recommended DRX configurations.

[0197] In some embodiments, the first communication unit 802 is configured to receive the first DRX configuration determined by the second user equipment according to geographical location information or located cell information.

[0198] In some embodiments, the first communication unit 802 is configured to receive the first DRX configuration found by the second user equipment from a first correspondence relationship according to geographical location information, or receive the first DRX configuration found by the second user equipment from a second correspondence relationship according to located cell information, where the first correspondence relationship includes a correspondence relationship between geographical location information and DRX configurations, and the second correspondence relationship includes a correspondence relationship between cell information and DRX configurations.

[0199] In some embodiments, the DRX configuration includes at least one parameter from a first parameter, a second parameter, a third parameter, a fourth parameter, a fifth parameter, and a sixth parameter; wherein the first parameter is used to indicate a first time length, and the first time length is a time length for the first user equipment to monitor a physical sidelink control channel (PSCCH) and / or a physical sidelink shared channel (PSSCH) in a DRX cycle; The second parameter is used to indicate a second time length, and the second time length is a time length for which the first user equipment needs to continue monitoring the PSCCH and / or PSSCH after monitoring the PSCCH and / or PSSCH; the third parameter is used to indicate a third time length and / or a first offset amount, the third time length being a time length of a long DRX cycle, and the first offset amount being a time offset amount relative to time domain reference point 1; the fourth parameter is used to indicate a second offset amount, and the second offset amount is an offset amount at a time slot level of a long DRX cycle and / or a short DRX cycle; the fifth parameter is used to indicate a fourth time length, and the fourth time length is a time length of a short DRX cycle; The sixth parameter is used to indicate a first period number, and the first user equipment prepares to enter a long DRX period if it has not monitored the PSCCH and / or the PSSCH in the short DRX period indicated by the first period number.

[0200] According to the above device, by planning the DRX setting range in advance based on a predetermined setting rule, it is possible to limit the selectable DRX settings to a small range, and by the first user equipment determining the first DRX setting in accordance with the predetermined setting rule, it is possible to solve the problem of different user equipments specifying different DRX settings for the first user equipment, thereby preventing the first user equipment from always being in the On duration state and reducing power consumption.

[0201] The present embodiment further provides another device 90 for configuring sidelink parameters, which is applied to a second user equipment. FIG. 16 is a second schematic structural diagram of the device 90 for configuring sidelink parameters according to the present embodiment. As shown in FIG. 16 , the device 90 includes: a second processing unit 901 configured to determine a first DRX configuration of the first user equipment according to a predetermined configuration rule and generate a configuration response; and a second communication unit 902 configured to send the configuration response to the first user equipment, thereby causing the first user equipment to perform discontinuous reception on data transmitted by a second user equipment according to the first DRX configuration determined by the configuration response.

[0202] In some embodiments, the second communication unit 902 is configured to receive one or more recommended DRX configurations of the first user equipment, and the second processing unit 901 is configured to determine a first DRX configuration of the first user equipment according to the recommended DRX configurations and generate a configuration response.

[0203] In some embodiments, when the second communication unit 902 is configured to receive one recommended DRX configuration sent by the first user equipment, the second processing unit 901 is configured to generate a first DRX configuration according to the recommended DRX configuration and / or the second DRX configuration, and use the first DRX configuration as the configuration response.

[0204] In some embodiments, the second processing unit 901 is configured to determine that the recommended DRX setting is available and generate a first DRX setting according to the recommended DRX setting, or to determine that the recommended DRX setting is unavailable and generate a first DRX setting according to the second DRX setting, or to generate a first DRX setting according to the recommended DRX setting and the second DRX setting.

[0205] In some embodiments, the second DRX configuration is configured or pre-configured by a network device.

[0206] In some embodiments, when the second communication unit 902 is configured to receive one recommended DRX configuration sent by the first user equipment, the second processing unit 901 is configured to determine that the recommended DRX configuration is available, generate a first response, and use the first response as the configuration response, where the first response is used to indicate that the recommended DRX configuration is available.

[0207] In some embodiments, when the second communication unit 902 is configured to receive a plurality of recommended DRX settings transmitted by the first user equipment, the second processing unit 901 is configured to determine one target DRX setting from the plurality of recommended DRX settings, generate a second response, and use the second response as the setting response, where the second response is used to indicate one target DRX setting of the plurality of recommended DRX settings.

[0208] In some embodiments, the second communication unit 902 is configured to receive a recommended DRX configuration of the first user equipment, send the recommended DRX configuration to a network device, receive the first DRX configuration issued by the network device, and use the first DRX configuration as the configuration response.

[0209] In some embodiments, the second processing unit 901 is configured to determine the first DRX configuration according to geographical location information or located cell information of the second user equipment, and use the first DRX configuration as the configuration response.

[0210] In some embodiments, the second processing unit 901 is configured to: find at least one corresponding DRX setting from a first correspondence relationship according to geographical location information, and determine the first DRX setting from the at least one DRX setting; or find at least one corresponding DRX setting from a second correspondence relationship according to located cell information, and determine the first DRX setting from the at least one DRX setting, where the first correspondence relationship includes a correspondence relationship between geographical location information and DRX settings, and the second correspondence relationship includes a correspondence relationship between cell information and DRX settings.

[0211] In some embodiments, the second processing unit 901 is configured to select one DRX setting from the at least one DRX setting as the first DRX setting according to a service type, a service periodicity, or a service priority of a service to be transmitted, or to randomly select one DRX setting from the at least one DRX setting as the first DRX setting.

[0212] In some embodiments, the DRX configuration includes at least one parameter from a first parameter, a second parameter, a third parameter, a fourth parameter, a fifth parameter, and a sixth parameter; wherein the first parameter is used to indicate a first time length, and the first time length is a time length for the first user equipment to monitor a physical sidelink control channel (PSCCH) and / or a physical sidelink shared channel (PSSCH) in a DRX cycle; The second parameter is used to indicate a second time length, and the second time length is a time length for which the first user equipment needs to continue monitoring the PSCCH and / or PSSCH after monitoring the PSCCH and / or PSSCH; the third parameter is used to indicate a third time length and / or a first offset amount, the third time length being a time length of a long DRX cycle, and the first offset amount being a time offset amount relative to time domain reference point 1; the fourth parameter is used to indicate a second offset amount, and the second offset amount is an offset amount at a time slot level of a long DRX cycle and / or a short DRX cycle; the fifth parameter is used to indicate a fourth time length, and the fourth time length is a time length of a short DRX cycle; The sixth parameter is used to indicate a first period number, and the first user equipment prepares to enter a long DRX period if it has not monitored the PSCCH and / or the PSSCH in the short DRX period indicated by the first period number.

[0213] According to the above device, by planning the DRX setting range in advance based on a predetermined setting rule, it is possible to limit the selectable DRX settings to a small range, and by having the second user equipment determine the first DRX setting in accordance with the predetermined setting rule, it is possible to solve the problem of different user equipments specifying different DRX settings for the first user equipment, thereby preventing the first user equipment from always being in the On duration state and reducing power consumption.

[0214] The present embodiment further provides a user equipment. FIG. 17 is a schematic structural diagram of a first user equipment according to the present embodiment. As shown in FIG. 17, the first user equipment 100 includes: a processor 1001; and a memory 1002 configured to store a computer program executable by the processor; Here, the processor 1001 is configured to execute the method in the above embodiment by executing a computer program. Illustratively, the first user equipment 100 may further include a transceiver 1003, and the processor 1001 may control the transceiver 1003 to communicate with other user equipments.

[0215] Here, the transceiver 1003 may include a transmitter and a receiver, and may further include an antenna, the number of which may be one or more.

[0216] Of course, in a practical application, the components of the first user equipment are coupled by a bus system. As can be understood, the bus system is used to realize the connection and communication between these components. In addition to a data bus, the bus system includes a power bus, a control bus, and a status signal bus.

[0217] FIG. 18 is a schematic structural diagram of a second user device according to an embodiment of the present application. As shown in FIG. 18, the second user device 110 includes: a processor 1101; and a memory 1102 configured to store a computer program executable by the processor; Here, the processor 1101 is configured to execute the method in the above embodiments by executing a computer program.

[0218] For example, the first user equipment 110 may further include a transceiver 1103, and the processor 1101 may control the transceiver 1103 to communicate with other user equipments. Here, the transceiver 1103 may include a transmitter and a receiver. The transceiver 1103 may further include an antenna, and the number of antennas may be one or more.

[0219] Of course, in a practical application, the components of the first user equipment are coupled by a bus system. As can be understood, the bus system is used to realize the connection and communication between these components. In addition to a data bus, the bus system includes a power bus, a control bus, and a status signal bus.

[0220] The present embodiment further provides a chip, and FIG. 19 is a schematic structural diagram of the chip of the present embodiment. The chip 120 shown in FIG. 19 includes a processor 1201, which can implement the method of the present embodiment by calling and executing a computer program from a memory. Exemplarily, as shown in FIG. 19, the chip 120 can further include a memory 1202. The processor 1201 can implement the method of the present embodiment by calling and executing a computer program from the memory 1202. The memory 1202 can be a separate device independent of the processor 1201 or can be integrated into the processor 1201. Exemplarily, the chip 120 can further include an input interface 1203. The processor 1201 can control the input interface 1203 to communicate with other devices or chips, specifically, to obtain information or data transmitted by other devices or chips. Exemplarily, the chip 120 can further include an output interface 1204. Here, the processor 1201 can control the output interface 1204 to communicate with other devices or chips, specifically, to output information or data to other devices or chips.

[0221] For example, the chip may be applied to the first user device or the second user device in the embodiments of the present application, and may implement the corresponding processes implemented by the first user device or the second user device in each method of the embodiments of the present application, which will not be described again for brevity. It should be understood that the chip referred to in the embodiments of the present application may also be referred to as a system-level chip, a system chip, a chip system, or a system-on-chip.

[0222] 20 is a schematic structural diagram of a communication system according to an embodiment of the present invention. As shown in FIG. 20, the communication system 130 includes a first user device 1301 and a second user device 1302.

[0223] Here, the first user equipment 1301 is configured to realize the corresponding functions realized by the first user equipment in the above method, and the second user equipment 1302 is configured to realize the corresponding functions realized by the second user equipment in the above method, which will not be repeated here.

[0224] In a practical application, the first user equipment 1301 functions as a receiver, the second user equipment 1302 functions as a transmitter, and the communication system 130 may further include other user equipment communicatively connected to the first user equipment 1301.

[0225] It should be understood that the processor in the present embodiment may be an integrated circuit chip having signal processing capabilities. In the implementation process, each step of the above method embodiment may be completed by instructions in the form of software or by hardware integrated logic circuits in the processor. The processor may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc., and may implement or execute each method, step, and logic block diagram disclosed in the present embodiment. The general-purpose processor may be a microprocessor, or the processor may be any conventional processor, etc. The steps of the method disclosed in the present embodiment may be performed directly by a hardware decoding processor or by a combination of hardware and software modules in the decoding processor. The software modules may be located in conventional storage media such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is placed in a memory, and a processor reads the information in the memory and completes the steps of the above method in combination with the hardware.

[0226] As can be appreciated, memory in the present embodiments may be volatile or nonvolatile memory, or may include both volatile and nonvolatile memory. Here, nonvolatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory may be random access memory (RAM), used as an external cache. By way of illustrative, but non-limiting example, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchlink dynamic random access memory (SLDRAM), and direct memory bus random access memory (DR RAM). Note that memory in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0227] The present embodiment further provides a computer-readable storage medium storing a computer program. For example, the computer-readable storage medium may be applied to the first user device or the second user device in the present embodiment, and the computer program causes a computer to execute corresponding processes implemented by the first user device or the second user device in each method of the present embodiment, and for convenience' sake, the processes will not be described again here.

[0228] It is obvious to those skilled in the art that the units and algorithm steps of each embodiment described with reference to the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are implemented in the form of hardware or software depends on the specific application and design constraints of the technical solution. Professionals may use different methods to implement the described functions according to each specific application, but such implementation should not be deemed to exceed the protection scope of the present application.

[0229] As can be understood by those skilled in the art, for convenience and conciseness of description, the specific working processes of the above systems, devices and units can refer to the corresponding processes in the above method embodiments, and will not be repeated here.

[0230] In some embodiments of the present application, the disclosed system, device, and method can be realized in other ways. For example, the device embodiments described above are merely exemplary, and the division of the units is merely a division of logical functions. In actual implementation, other division methods can be adopted. For example, multiple units or components can be combined or integrated into another system, and some features can be ignored or not implemented. Furthermore, the shown or discussed mutual couplings or direct couplings or communication connections can be realized using some interfaces, and indirect couplings or communication connections between devices or units can be in electrical, mechanical, or other forms.

[0231] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, i.e., they may be located in one place or distributed across multiple network units. According to actual needs, some or all of the units can be selected to achieve the objective of the solution of this embodiment.

[0232] Furthermore, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may be a separate, independent physical unit, or two or more units may be integrated into one unit.

[0233] When the functions are realized in the form of a software functional unit and sold or used as an independent product, they can be stored in a computer-readable storage medium. Based on this understanding, an essential part of the technical solution of the present application, i.e., a part contributing to the prior art, or a part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in one storage medium and includes several instructions for causing one computer device (which may be a personal computer, a server, a network device, etc.) to execute all or part of the steps of the methods described in each embodiment of the present application.

[0234] The above content is merely a specific embodiment of the present application, and the scope of protection of the present application is not limited thereto. Any modifications or replacements that can be easily thought of by those skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be subject to the scope of protection of the claims.

Claims

1. 1. A method for configuring sidelink parameters, applied to a first user equipment, comprising: determining a recommended DRX setting for the first user equipment, the recommended DRX setting being dependent on an implementation of the first user equipment; sending the recommended DRX configuration to a second user equipment; receiving a configuration response from the second user equipment; determining a first DRX configuration of the first user equipment according to the configuration response; performing discontinuous reception on data transmitted by the second user equipment according to the first DRX configuration; Determining a recommended DRX configuration for the first user equipment comprises: locating at least one corresponding DRX configuration from a second correspondence relationship according to cell information in which the first user equipment is located, and determining the recommended DRX configuration from the at least one DRX configuration, wherein the second correspondence relationship includes a correspondence relationship between cell information and DRX configurations.

2. The configuration response is sent using a PC5 Radio Resource Control (PC5 RRC) connection. The method of claim 1.

3. The recommended DRX setting is transmitted using a PC5-RRC connection. The method of claim 1.

4. Receiving a configuration response from the second user equipment includes: receiving a first DRX configuration generated by the second user equipment according to the recommended DRX configuration and / or a second DRX configuration; The method of claim 1.

5. the second DRX configuration is configured or pre-configured by a network device; The method of claim 4.

6. each of the recommended DRX setting, the first DRX setting, and the second DRX setting includes at least one parameter from a first parameter, a second parameter, a third parameter, and a fourth parameter; the first parameter is used to indicate a first time length, the first time length being a time length for which the first user equipment monitors a physical sidelink control channel (PSCCH) and / or a physical sidelink shared channel (PSSCH) during a DRX cycle; The second parameter is used to indicate a second length of time, the second length of time being a length of time for which the first user equipment needs to continue monitoring the PSCCH and / or the PSSCH after monitoring the PSCCH and / or the PSSCH; the third parameter is used to indicate a third time length and / or a first offset amount, the third time length being a time length of a long DRX cycle, and the first offset amount being a time offset amount relative to Time Domain Reference Point 1; the fourth parameter is used to indicate a second offset amount, and the second offset amount is an offset amount at a time slot level of a long DRX cycle and / or a short DRX cycle; 6. The method of claim 4 or 5.

7. A method for configuring sidelink parameters, applied to a second user equipment, comprising: receiving a recommended DRX setting sent by a first user equipment; determining a first DRX configuration of the first user equipment and generating a configuration response; sending the configuration response to the first user equipment, thereby causing the first user equipment to perform discontinuous reception on data transmitted by a second user equipment according to the first DRX configuration determined by the configuration response; Determining a first DRX configuration of the first user equipment comprises: locating at least one corresponding DRX configuration from a second correspondence relationship according to cell information of the second user equipment, and determining the first DRX configuration from the at least one DRX configuration, wherein the second correspondence relationship includes a correspondence relationship between cell information and DRX configurations.

8. Determining a first DRX configuration of the first user equipment and generating a configuration response includes: determining a first DRX configuration of the first user equipment according to the recommended DRX configuration and generating a configuration response; The method of claim 7.

9. When receiving one recommended DRX configuration sent by the first user equipment, determining a first DRX configuration of the first user equipment according to the recommended DRX configuration and generating a configuration response includes: generating a first DRX configuration according to the recommended DRX configuration and / or a second DRX configuration; and using the first DRX configuration as the configuration response. The method of claim 8.

10. The second DRX setting is configured or pre-configured by a network device.

10. The method of claim 9.

11. When receiving one recommended DRX configuration sent by the first user equipment, determining a first DRX configuration of the first user equipment according to the recommended DRX configuration and generating a configuration response includes: determining that the recommended DRX setting is available and generating a first response, the first response being used to indicate that the recommended DRX setting is available; and and using the first response as the configured response. The method of claim 8.

12. Determining a first DRX configuration of the first user equipment and generating a configuration response includes: transmitting the recommended DRX setting to a network device; receiving the first DRX configuration issued by the network device; and using the first DRX configuration as the configuration response. The method of claim 7.

13. a first user equipment, a processor and a memory configured to store a computer program executable by the processor; The first user equipment, wherein the memory is configured to store a computer program, and the processor is configured to execute the method of any one of claims 1 to 6 by calling and executing the computer program stored in the memory.

14. a second user equipment, a processor and a memory configured to store a computer program executable by the processor; 13. The second user equipment, wherein the memory is configured to store a computer program, and wherein the processor is configured to execute the method of any one of claims 7 to 12 by calling and executing the computer program stored in the memory.

15. A computer-readable storage medium having stored thereon a computer program for causing a computer to carry out the method according to any one of claims 1 to 12.

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