Parameter configuration method, user equipment and storage medium

Abstract

The present application discloses a sidelink parameter configuration method, user equipment, and storage medium. The method includes: a sidelink parameter configuration method, applied to a first user equipment, comprising: determining a recommended discontinuous reception (DRX) configuration for the first user equipment, the DRX configuration depending on an implementation mode 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 for the first user equipment based on the configuration response; and performing discontinuous reception on data sent by the second user equipment based on the first DRX configuration.

Description

[0001] Cross-references

[0002] This divisional application is a divisional application of PCT international application No. PCT / CN2021 / 071915, which entered the Chinese national phase, and Chinese patent application No. 202180079955.9, which entered the Chinese national phase on May 29, 2023, and whose invention name is “A side link parameter configuration method, device and user equipment”. Technical Field

[0003] The present invention relates to the field of communications, and in particular to a sidelink parameter configuration method, user equipment, and storage medium. Background Art

[0004] Discontinuous Reception (DRX) is an energy-saving and power-saving method used in uplink and downlink systems. User Equipment (UE) monitors the PDCCH channel according to the DRX cycle configured by the network.

[0005] However, the existing DRX mechanism is for the DRX mechanism in the uplink and downlink systems. The standard has not yet discussed how to use DRX in all communication systems implemented through sidelink (SL) transmission technology, such as device to device (D2D), vehicle to vehicle (V2V), and vehicle to everything (V2X). Summary of the Invention

[0006] To solve the above technical problems, embodiments of the present invention provide a sidelink parameter configuration method, user equipment, and storage medium.

[0007] According to one aspect of the present invention, a sidelink parameter configuration method is provided, which is applied to a first user equipment, comprising: determining a recommended discontinuous reception (DRX) configuration for the first user equipment, wherein the DRX configuration depends on an implementation mode of the first user equipment;

[0008] The method includes 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; and performing discontinuous reception on data sent by the second user equipment according to the first DRX configuration.

[0009] According to a second aspect of the present invention, a side link parameter configuration method is provided, which is applied to a second user equipment, including: receiving a recommended discontinuous reception DRX configuration 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, so that the first user equipment performs discontinuous reception of data sent by the second user equipment according to the first DRX configuration determined by the configuration response.

[0010] According to a third aspect of the present invention, a first user device is provided, comprising: a processor and a memory for storing a computer program that can be run on the processor, wherein the memory is used to store the computer program, and the processor is used to call and run the computer program stored in the memory to execute the method according to the first aspect.

[0011] According to a fourth aspect of the present invention, a second user device is provided, comprising: a processor and a memory for storing a computer program that can be run on the processor, wherein the memory is used to store the computer program, and the processor is used to call and run the computer program stored in the memory to execute the method according to the second aspect.

[0012] According to a fifth aspect of the present invention, there is provided a computer-readable storage medium for storing a computer program, wherein the computer program enables a computer to execute the method according to the first aspect or the method according to the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of a discontinuous cycle;

[0014] Figure 2 This is a schematic diagram of a first device-to-device communication mode;

[0015] Figure 3 is a schematic diagram of a second device-to-device communication mode;

[0016] Figure 4 Schematic diagram of the communication framework between devices;

[0017] Figure 5 It is a comparative diagram of two different non-continuous cycles;

[0018] Figure 6 This is a schematic diagram of a first flow chart of a method for configuring parameters of a sidelink in an embodiment of the present application;

[0019] Figure 7 Schematic diagram of DRX configuration in an embodiment of the present application;

[0020] Figure 8This is a second flow chart of the sidelink parameter configuration method according to an embodiment of the present application;

[0021] Figure 9 Schematic diagram of the process of determining the first DRX configuration in an embodiment of the present application;

[0022] Figure 10 This is a schematic diagram of the NR sidelink physical layer structure;

[0023] Figure 11 Schematic diagram of the third flow chart of the sidelink parameter configuration method in an embodiment of the present application;

[0024] Figure 12 This is a schematic diagram of a fourth flow chart of a method for configuring sidelink parameters in an embodiment of the present application;

[0025] Figure 13 This is a fifth flow chart of the sidelink parameter configuration method according to an embodiment of the present application;

[0026] Figure 14 This is a sixth flow chart of the sidelink parameter configuration method according to an embodiment of the present application;

[0027] Figure 15 This is a schematic diagram of the first component structure of the sidelink parameter configuration device in an embodiment of the present application;

[0028] Figure 16 This is a schematic diagram of the second component structure of the sidelink parameter configuration device in an embodiment of the present application;

[0029] Figure 17 This is a schematic diagram of the composition structure of the first user equipment in an embodiment of the present application;

[0030] Figure 18 This is a schematic diagram of the composition structure of the second user equipment in an embodiment of the present application;

[0031] Figure 19 is a schematic structural diagram of a chip according to an embodiment of the present application;

[0032] Figure 20 It is a schematic diagram of the composition structure of a communication system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0033] The following will describe the technical solutions in the embodiments of this application in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0034] In the uplink and downlink systems, the UE monitors the Physical Downlink Control Channel (PDCCH) only during the On Duration (activation period) in the DRX Cycle and can enter the sleep state during the remaining period in the DRX Cycle. The DRX Cycle is periodic, such as Figure 1 The network can be configured with only one level of DRX cycle or two levels of DRX cycle, including Long DRX cycle and Short DRX cycle. Figure 1 In the case of only one level of DRX Cycle, when only one level of DRX Cycle is configured, DRX Cycle refers to Long DRX Cycle, that is, the network only configures Long DRX Cycle.

[0035] The technical solution of the embodiment of the present application can be applied to all communication systems implemented by sidelink (SL) transmission technology, such as device to device (D2D), vehicle to vehicle (V2V), and vehicle to everything (V2X). SL transmission technology is different from the way in which communication data is received or sent by base stations in traditional cellular systems. This method of direct device-to-device communication has higher spectrum efficiency and lower transmission delay. Regarding device-to-device communication, 3GPP defines two transmission modes: Mode A and Mode B.

[0036] Mode A (such as Figure 2 As shown): The transmission resources of device 1 and device 2 are allocated by the base station, and the two devices transmit data on the side link according to the resources allocated by the base station; the base station can allocate resources for a single transmission to the device, or allocate resources for a semi-static transmission to the device.

[0037] Mode B (such as Figure 3 (as shown): Two devices independently select a resource in the resource pool to transmit data. Specifically, the devices can select a transmission resource in the resource pool by listening or by random selection.

[0038] The above-mentioned monitoring method means that the device excludes the corresponding resources in the resource selection window based on resource monitoring in the past period of time (including decoding the first sidelink control information sent by other devices and measuring SL-RSRP), and selects resources for transmission from the remaining resources that have not been excluded.

[0039] In SL, the transmitter configures a DRX pattern for the receiver. If there is a unicast or multicast service between a receiver and multiple transmitters, and multiple transmitters configure different DRX patterns for the same receiver, it is very likely that the receiver will be in a listening state and cannot sleep. Figure 4 As shown in the figure, UE A and UE B have unicast connections with UE C at the same time. UE A and UE B are unaware of each other's existence and each configures a DRX Pattern for UE C, which are denoted as DRX Pattern 1 and DRX Pattern 2. If DRX Pattern 1 and DRX Pattern 2 are orthogonal (e.g. Figure 5 As shown), UE C is always in the On duration state, and is always monitoring the physical sidelink control channel (PSCCH) and / or the physical sidelink shared channel (PSSCH). It cannot sleep to save power and consumes high power.

[0040] It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and / or" is simply a description of an association between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " generally indicates that the related objects are in an "or" relationship.

[0041] An embodiment of the present application provides a sidelink parameter configuration method, which is applied to a user device, and the device can be any user device that communicates via a sidelink. In order to more fully understand the characteristics and technical content of the embodiment of the present invention, the implementation of the embodiment of the present invention is described in detail below with reference to the accompanying drawings. The attached drawings are for reference only and are not intended to limit the embodiment of the present invention.

[0042] An embodiment of the present invention provides a sidelink parameter configuration method, which is applied to a first user equipment. Figure 6 This is a first flow chart of the sidelink parameter configuration method in an embodiment of the present application, as shown in FIG. Figure 6 As shown, including:

[0043] Step 101: Determine a first DRX configuration of the first user equipment according to a preset configuration rule;

[0044] It should be noted that the preset configuration rules are used to limit the selection range of DRX configuration information for the first user equipment. The preset configuration rules are used to pre-plan the DRX configuration range and limit the selectable DRX configurations to a smaller range. In this way, when the first user equipment, as a receiving end, performs discontinuous reception of other user equipment, it can select the first DRX configuration within the smaller DRX configuration range. This prevents different user equipment from configuring different DRX configurations for the first user equipment, causing the first user equipment to be continuously in the monitoring state and unable to sleep. This ensures that the first user equipment has sufficient sleep period, thereby saving energy consumption of the first user equipment.

[0045] In actual applications, the preset configuration rule may be any rule that limits the selection range of the DRX configuration.

[0046] In some embodiments, determining the first DRX configuration of the first user equipment according to a preset configuration rule includes: determining a DRX configuration recommended by the first user equipment; and determining the first DRX configuration of the first user equipment according to the recommended DRX configuration.

[0047] Here, the preset configuration rule is that a second user equipment (also referred to as UE2) generates a first DRX configuration based on a DRX configuration recommended by a first user equipment (also referred to as UE1). The second user equipment sends the first DRX configuration to the first user equipment, and the first user equipment performs discontinuous reception based on the first DRX configuration. The DRX configuration recommended by the first user equipment may be configured or pre-configured by a network device for the first user equipment, or the recommended DRX configuration may depend on implementation by the first user equipment. For example, when the first user equipment is connected to other user equipment, the recommended DRX configuration is obtained based on the DRX configuration corresponding to the other connection.

[0048] It should be noted that the first user equipment serves as the receiving end and the second user equipment serves as the transmitting end. The receiving end can receive data from multiple transmitting ends non-continuously, that is, the first user equipment corresponds to one or more second user equipment, and the DRX configuration corresponding to each connection between the first user equipment and the second user equipment can be determined by the parameter configuration method provided in the embodiment of the present application.

[0049] In some other embodiments, determining the first DRX configuration of the first user equipment according to a preset configuration rule includes: receiving the first DRX configuration determined by the second user equipment according to geographic location information or cell information.

[0050] Here, the preset configuration rule is that the second user equipment determines the first DRX configuration based on its own geographic location or cell. In actual applications, the network may pre-divide the geographic location into multiple geographic zones (ZONEs), then configure one or more DRX configurations for each geographic zone, determine which geographic zone the second user equipment is in based on its geographic location (represented by a ZONE or ZONE ID), and then determine one or more corresponding DRX configurations based on the ZONE or ZONE ID (geographic zone identifier). If multiple DRX configurations are determined, one is determined from the multiple as the first DRX configuration. The network may pre-divide the cell into multiple cell groups (Cell Groups), then configure one or more DRX configurations for each cell group, determine which cell group the second user equipment is in based on its cell information (represented by a Cell Group or Cell Group ID), and then determine one or more corresponding DRX configurations based on the Cell Group or Cell Group ID (cell group identifier). If multiple DRX configurations are determined, one is determined from the multiple as the first DRX configuration. The network may also directly configure one or more DRX configurations for a cell. The second user equipment determines the corresponding one or more DRX configurations according to the cell or cell ID (cell ID). If multiple DRX configurations are determined, one is determined from the multiple as the first DRX configuration.

[0051] In this way, the DRX configuration range is pre-planned using preset configuration rules, limiting the selectable DRX configurations to a smaller range. When the first user equipment, as a receiving end, performs discontinuous reception of other user equipment, it can select the first DRX configuration within the smaller DRX configuration range. This prevents different user equipment from configuring different DRX configurations for the first user equipment, causing the first user equipment to be continuously in a listening state and unable to sleep. This ensures that the first user equipment has a sufficient sleep period, thereby saving energy consumption of the first user equipment.

[0052] Step 102: Perform discontinuous reception on data sent by the second user equipment according to the first DRX configuration.

[0053] In some embodiments, the DRX configuration (including the DRX configuration suggested in the embodiments of the present application, the first DRX configuration, the second DRX configuration, and other DRX configurations) includes at least one of the following parameters: a first parameter, a second parameter, a third parameter, a fourth parameter, a fifth parameter, and a sixth parameter;

[0054] The first parameter is used to indicate a first time length, and the first time length is a time length during which the first user equipment monitors a physical sidelink control channel PSCCH and / or a physical sidelink shared channel PSSCH in a DRX cycle;

[0055] The second parameter is used to indicate a second time length, where the second time length is the time length for which the first user equipment needs to continue monitoring the PSCCH and / or PSSCH after monitoring the PSCCH and / or PSSCH;

[0056] The third parameter is used to indicate a third time length and / or a first offset, where the third time length is the time length of the long DRX cycle, and the first offset is a time offset relative to the time domain reference point 1;

[0057] The fourth parameter is used to indicate a second offset, where the second offset is an offset of the long DRX cycle and / or the short DRX cycle at the time slot level;

[0058] The fifth parameter is used to indicate a fourth time length, where the fourth time length is the time length of the short DRX cycle;

[0059] The sixth parameter is used to indicate a first cycle number. The first user equipment does not monitor the PSCCH and / or PSSCH in the short DRX cycle indicated by the first cycle number and is ready to enter a long DRX cycle.

[0060] For example, the first parameter (drx-onDurationTimer) indicates the duration of the On Duration state. If a two-stage DRX cycle is configured, the On Duration state has the same duration in both stages. In both Long and Short DRX cycles, the On Duration state precedes the Sleep state. This parameter is expressed in units of 1 / 32 milliseconds, or milliseconds.

[0061] The second parameter (drx-InactivityTimer): is used to indicate the length of time the UE should continue to monitor the uplink and downlink scheduling or transmission after receiving the PSCCH and / or PSSCH. Assuming that the UE monitors the PSCCH and / or PSSCH in the last time slot of the On duration time period, the UE will enter the sleep state in the next time slot. If the data scheduled by the PSCCH and / or PSSCH or the indicated retransmission is not completed in the current time slot or the transmission is not completed in the current time slot, the UE will not be able to receive data after entering the sleep state. Therefore, the UE should continue to wait for a period of time after monitoring the PSCCH and / or PSSCH before entering the sleep state (that is, continue to monitor the uplink and downlink scheduling or transmission). The length of this period is the length of time indicated by this parameter. The unit of this parameter is milliseconds.

[0062] The third parameter (drx-LongCycleStartOffset) indicates the duration of the Long DRX Cycle and its offset relative to time domain reference point 1, denoted as drxStartOffset. Optionally, time domain reference point 1 is SFN 0, the starting boundary of SFN 0, the first timeslot in SFN 0, or the first subframe in SFN 0. drxStartOffset is used to determine the time domain starting position of the Long DRX Cycle and / or Short DRX Cycle. Both parameters are expressed in milliseconds.

[0063] The fourth parameter (drx-SlotOffset) is used to indicate the offset of the Long DRX Cycle and / or Short DRX Cycle at the time slot level. Because the units of the above parameters are all milliseconds, 1 millisecond (one subframe) can be equal to several time slots in NR. This is related to the subcarrier spacing. For example, when the subcarrier spacing is 15kHz / 30kHz / 60kHz / 120kHz, one millisecond corresponds to 1 / 2 / 4 / 8 time slots. In order to describe the time slot in which the Long DRX Cycle and / or Short DRX Cycle starts, this parameter is introduced in NR. The unit of this parameter is 1 / 32 millisecond.

[0064] The fifth parameter (drx-ShortCycle) indicates the duration of the Short DRX Cycle. This parameter is in milliseconds. It should be noted that the fifth parameter is an optional configuration parameter.

[0065] The sixth parameter (drx-ShortCycleTimer) is used to indicate the number of Short DRX Cycles in which the UE fails to monitor the PSCCH and / or PSSCH before entering the Long DRX Cycle. It should be noted that the sixth parameter is an optional configuration parameter.

[0066] The following uses an example to illustrate the working mechanism of the above DRX configuration in the sidelink system.

[0067] Assuming that the subcarrier spacing is 15 kHz, one subframe is equal to one millisecond, and one subframe contains only one time slot.

[0068] The DRX configuration parameters are: drx-onDurationTimer: 2ms, drx-InactivityTimer: 2ms, drx-LongCycleStartOffset: Long DRX cycle is 10ms and drxStartOffset is 1ms, drx-SlotOffset: 0ms, drx-ShortCycle: 5ms, drx-ShortCycleTimer: 2.

[0069] Figure 7 This is a schematic diagram of the DRX configuration in an embodiment of the present application, as shown in FIG. Figure 7 As shown, SFN (System Frame Number) is the system frame number, On Duration Timer is the On Duration timer used to time the first time length in the first parameter, Inactivity Timer is the Inactivity timer used to time the second time length in the second parameter, and PSCCH and / or PSSCH indicate PSCCH monitoring, or PSSCH monitoring, or PSCCH and PSSCH monitoring in the On duration state. Specifically, infinite frame 0 subframe 1 is recorded as (0, 1). At (0, 1), the UE (referring to the first user equipment) meets the conditions for entering the Long DRX Cycle, so (0, 1) (0, 2) is the On duration state. The UE detects PSCCH and / or PSSCH at (0, 2) and starts the Inactivity timer. Therefore, it continues to monitor PSCCH and / or PSSCH at (0, 3) and (0, 4). After the Inactivity timer expires, the UE will first prepare to enter the Short DRX Cycle (SDC). At (0,6), the UE meets the conditions for entering the Short DRX Cycle and enters the Short DRX Cycle multiple times thereafter. Since the drx-ShortCycleTimer is 2, the UE does not detect the PSCCH and / or PSSCH in two consecutive Short DRX cycles (i.e., from (0,6) to (1,5)), and the UE will prepare to enter the Long DRX Cycle (LDC). At (2,1), the UE meets the conditions for entering the Long DRX Cycle and does not detect the PSCCH and / or PSSCH in this cycle. At (3,1), it enters the Long DRX Cycle again and starts the On duration state. At (3,1), it detects the PSCCH and / or PSSCH, starts the Inactivity timer again, and selects to enter the Short DRX Cycle.

[0070] In some embodiments, the above-mentioned condition for entering the Long DRX Cycle is [SFN*10+subframe number] mod (time length of the Long DRX Cycle) = drxStartOffset. In other words, the periodic starting subframe position of the Long DRX Cycle is [SFN*10+subframe number] mod (time length of the Long DRX Cycle) = drxStartOffset. For example Figure 7 In the subframe (0, 1) (1, 1) (2, 1) (3, 1), the UE can enter the Long DRX Cycle.

[0071] The above-mentioned condition for entering the Short DRX Cycle is that [SFN*10+subframe number] mod (time length of the Short DRX Cycle) = drxStartOffset mod (time length of the Short DRX Cycle). In other words, the periodic starting subframe position of the Short DRX Cycle is [SFN*10+subframe number] mod (time length of the Short DRX Cycle) = drxStartOffset mod (time length of the Short DRX Cycle). For example Figure 7 In the subframe (0, 1) (0, 6) (1, 1) (1, 6) (2, 1) (2, 6) (3, 1) (3, 6) the UE may enter the Short DRX Cycle.

[0072] Optionally, the starting position of the specific time slot granularity may be offset according to the above configuration parameter drx-SlotOffset based on the determination of the subframe starting position.

[0073] By adopting the above solution, the DRX configuration range is pre-planned through preset configuration rules, and the selectable DRX configurations are limited to a smaller range. The first DRX configuration determined by the first user equipment according to the preset configuration rules can solve the problem of different user equipment configuring different DRX configurations for the first user equipment, avoid the first user equipment being in the Onduration state all the time, and save energy consumption.

[0074] The following further illustrates how to determine the first DRX configuration in the embodiment of the present application. Figure 8 This is a second flow chart of the sidelink parameter configuration method in an embodiment of the present application, such as Figure 8 As shown, including:

[0075] Step 201: Determine the DRX configuration recommended by the first user equipment;

[0076] Here, the preset configuration rule is that the second user equipment (also referred to as UE2) generates a configuration response based on the DRX configuration recommended by 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.

[0077] Specifically, determining the DRX configuration recommended by the first user equipment includes at least the following three methods.

[0078] Method 1: Determining the DRX configuration recommended by the first user equipment includes: when the first user equipment has at least one connection with at least one other user equipment, determining the recommended DRX configuration according to at least one DRX configuration corresponding to the at least one connection.

[0079] That is, when the first user equipment determines a recommended DRX configuration for the second user equipment, the first user equipment may use at least one DRX configuration corresponding to at least one connection as a reference for determination.

[0080] In some embodiments, the determining of the recommended DRX configuration based on at least one DRX configuration corresponding to the at least one connection includes: when there is one connection, using the target parameters of the corresponding DRX configuration as the target parameters of the recommended DRX configuration; when there are at least two connections, using the target parameters of one DRX configuration in the corresponding at least two DRX configurations as the target parameters of the recommended DRX configuration; or, when there are at least two connections, determining the target parameters in the recommended DRX configuration based on at least two target parameters in the corresponding at least two DRX configurations.

[0081] That is to say, different numbers of connections correspond to different determination methods. When there is one connection, there is only one reference DRX configuration. The target parameters in the recommended DRX configuration are determined based on the target parameters in a reference DRX configuration. Here, the target parameter is any parameter in the DRX configuration, 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.

[0082] When there are more than two connections, one target parameter from at least two DRX configurations is used as the target parameter for the recommended DRX configuration; or the target parameter for the recommended DRX configuration is determined based on two or more target parameters from at least two DRX configurations. Exemplarily, the target parameter from any or a specific DRX configuration from the two DRX configurations may be selected.

[0083] In some embodiments, determining the target parameter in the recommended DRX configuration based on at least two target parameters in at least two DRX configurations includes:

[0084] using a maximum value of the at least two target parameters as a target parameter in the recommended DRX configuration;

[0085] Alternatively, using a minimum value of the at least two target parameters as the target parameter in the recommended DRX configuration;

[0086] Alternatively, an average of the at least two target parameters is used as the target parameter in the recommended DRX configuration;

[0087] Alternatively, using the parameter with the largest number among the at least two target parameters as the target parameter in the recommended DRX configuration;

[0088] Alternatively, the greatest common divisor of the at least two target parameters is used as the target parameter in the recommended DRX configuration;

[0089] Alternatively, the least common multiple of the at least two target parameters is used as the target parameter in the recommended DRX configuration.

[0090] In some embodiments, the DRX configuration (including the DRX configuration suggested in the embodiments of the present application, the first DRX configuration, the second DRX configuration, and other DRX configurations) includes at least one of the following parameters: a first parameter, a second parameter, a third parameter, a fourth parameter, a fifth parameter, and a sixth parameter;

[0091] The first parameter is used to indicate a first time length, where the first time length is a time length for the first user equipment to monitor the PSCCH and / or PSSCH in the DRX cycle;

[0092] The second parameter is used to indicate a second time length, where the second time length is the time length for which the first user equipment needs to continue monitoring the PSCCH and / or PSSCH after monitoring the PSCCH and / or PSSCH;

[0093] The third parameter is used to indicate a third time length and / or a first offset, where the third time length is the time length of the long DRX cycle, and the first offset is a time offset relative to the time domain reference point 1;

[0094] The fourth parameter is used to indicate a second offset, where the second offset is an offset of the long DRX cycle and / or the short DRX cycle at the time slot level;

[0095] The fifth parameter is used to indicate a fourth time length, where the fourth time length is the time length of the short DRX cycle;

[0096] The sixth parameter is used to indicate a first cycle number. The first user equipment does not monitor the PSCCH and / or PSSCH in the short DRX cycle indicated by the first cycle number and is ready to enter a long DRX cycle.

[0097] Here, the method of determining the target parameter is also a method of determining the time length or offset in the target parameter.

[0098] Specifically, when determining the first parameter, the first time length may depend on network configuration or pre-configuration or depend on a preset value implemented by the UE or specified by a standard.

[0099] Optionally, when UE 1 already has a unicast or multicast connection with another UE, it is recorded as connection 1. The first time length is the first time length indicated by the DRX configuration corresponding to connection 1.

[0100] Optionally, when UE 1 already has multiple unicast or multicast connections with other UEs, these are recorded as connections 1-N. The first duration is the first duration indicated by the DRX configuration corresponding to one of the connections 1-N. Alternatively, the first duration is the maximum, minimum, average, or most frequently indicated value, greatest common divisor, or least common multiple of the first durations indicated by the DRX configuration corresponding to multiple connections in connections 1-N. Connections 1-N may be partially unicast and partially multicast.

[0101] When determining the second parameter, the second time length may depend on network configuration or pre-configuration or depend on a preset value implemented by the UE or specified by a standard.

[0102] Optionally, when UE 1 already has a unicast or multicast connection with another UE, it is recorded as connection 1. The second time length is the second time length indicated by the DRX configuration corresponding to connection 1.

[0103] Optionally, when UE 1 already has multiple unicast or multicast connections with other UEs, these are recorded as connections 1-N. The second duration is the second duration indicated by the DRX configuration corresponding to one of the connections 1-N. Alternatively, the second duration is the maximum, minimum, average, or most frequently indicated value, greatest common divisor, or least common multiple of the second durations indicated by the DRX configuration corresponding to multiple connections in connections 1-N. Connections 1-N may be partially unicast and partially multicast.

[0104] When determining the third parameter, the time domain reference point 1 is SFN 0 or the starting boundary of SFN 0 or the first time slot in SFN 0 or the first subframe in SFN 0. The first offset is used to determine the time domain starting position of the long DRX cycle and / or the short DRX cycle.

[0105] Optionally, the third time length may depend on network configuration or pre-configuration or depend on UE implementation or a preset value specified by the standard.

[0106] Optionally, when UE 1 already has a unicast or multicast connection with another UE, it is recorded as connection 1. The third time length is the third time length indicated by the DRX configuration corresponding to connection 1.

[0107] Optionally, when UE 1 already has multiple unicast or multicast connections with other UEs, these are recorded as connections 1-N. The third duration is the third duration indicated by the DRX configuration corresponding to one of the connections 1-N. Alternatively, the third duration is the maximum, minimum, average, or most frequently indicated value, greatest common divisor, or least common multiple of the third durations indicated by the DRX configuration corresponding to multiple connections in connections 1-N. (Connections 1-N may be partially unicast and partially multicast.)

[0108] Optionally, the first offset may depend on network configuration, pre-configuration, UE implementation, or a preset value specified in a standard. Optionally, the first offset is 0. Optionally, when UE 1 already has a unicast or multicast connection with another UE, this is recorded as connection 1. The first offset is the first offset indicated by the DRX configuration corresponding to connection 1.

[0109] Optionally, when UE 1 already has multiple unicast or multicast connections with other UEs, these are referred to as connections 1-N. The first offset is the first offset of the DRX configuration indicator corresponding to one of the connections 1-N. Alternatively, the first offset is the maximum, minimum, average, or most frequently indicated first offset of the DRX configuration indicators corresponding to multiple connections in connections 1-N. Connections 1-N may be partially unicast and partially multicast.

[0110] When determining the fourth parameter, the second offset may depend on network configuration, pre-configuration, UE implementation, or a preset value specified in a standard. Optionally, the second offset is 0. Optionally, when UE 1 already has a unicast or multicast connection with another UE, this is referred to as connection 1. The second offset is the second offset indicated by the DRX configuration corresponding to connection 1.

[0111] Optionally, when UE 1 already has multiple unicast or multicast connections with other UEs, these are referred to as connections 1-N. The second offset is the second offset of the DRX configuration indicator corresponding to one of the connections 1-N. Alternatively, the second offset is the maximum, minimum, average, or most frequently indicated second offset of the DRX configuration indicators corresponding to multiple connections in connections 1-N. Connections 1-N may be partially unicast and partially multicast.

[0112] Assuming the subcarrier spacing is 30 kHz and one subframe contains two time slots, the starting positions of the long DRX cycle determined by the third parameter are subframe 5, subframe 10, and subframe 15. If the value indicated by the fourth parameter is equal to one time slot, the starting position of the long DRX cycle is the second time slot in subframe 5, the second time slot in subframe 10, and the second time slot in subframe 15.

[0113] When determining the fifth parameter, the fourth time length may depend on network configuration or pre-configuration or depend on a preset value implemented by the UE or specified by a standard.

[0114] Optionally, when UE 1 already has a unicast or multicast connection with another UE, it is recorded as connection 1, 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.

[0115] Optionally, when UE 1 already has multiple unicast or multicast connections with other UEs, these are recorded as connections 1-N. The fourth duration is the fourth duration indicated by the DRX configuration corresponding to one of the connections 1-N. Alternatively, the fourth duration is the maximum, minimum, average, or most frequently indicated value, greatest common divisor, or least common multiple of the fourth durations indicated by the DRX configuration corresponding to multiple connections in connections 1-N. Connections 1-N may be partially unicast and partially multicast.

[0116] When determining the fifth parameter, the first cycle number may depend on network configuration or preconfiguration, or on a UE implementation or a preset value specified in a standard. Optionally, the first cycle number is 0. Optionally, when UE 1 already has a unicast or multicast connection with another UE, it is recorded as connection 1, and the DRX configuration corresponding to connection 1 indicates the first cycle number. The first cycle number is the first cycle number indicated by the DRX configuration corresponding to connection 1.

[0117] Optionally, when UE 1 already has multiple unicast or multicast connections with other UEs, these are recorded as connections 1-N. The first cycle number is the first cycle number indicated by the DRX configuration corresponding to one of the connections 1-N. Alternatively, the first cycle number is the maximum, minimum, average, or most frequently indicated value of the first cycle numbers indicated by the DRX configuration corresponding to multiple connections in connections 1-N. Connections 1-N may be partially unicast and partially multicast.

[0118] Mode 2: The determining of the DRX configuration recommended by the first user equipment includes: determining the recommended DRX configuration according to a network device configuration or pre-configuration.

[0119] Specifically, the recommended DRX configuration is determined based on the network's periodic configuration or aperiodic configuration. For example, the network pre-configuration may be to use the DRX configuration fixed in the chip of the user equipment before leaving the factory as the recommended DRX configuration, or to configure a DRX configuration for the UE when the UE is within the coverage of the base station. If the UE moves to a location without network coverage, the UE still uses the previous base station configuration as the recommended DRX configuration. Alternatively, the recommended DRX configuration is determined based on the first user equipment, and the first user equipment configures itself based on specific communication conditions.

[0120] Mode 3: The determining of the DRX configuration recommended by the first user equipment includes: determining the recommended DRX configuration according to geographic location information or cell information of the first user equipment.

[0121] In this way, the DRX configuration range is pre-planned using preset configuration rules, limiting the selectable DRX configurations to a smaller range. When the first user equipment, as a receiving end, performs discontinuous reception of other user equipment, it can select the first DRX configuration within the smaller DRX configuration range. This prevents different user equipment from configuring different DRX configurations for the first user equipment, causing the first user equipment to be continuously in a listening state and unable to sleep. This ensures that the first user equipment has a sufficient sleep period, thereby saving energy consumption of the first user equipment.

[0122] In some embodiments, determining the recommended DRX configuration based on the geographic location information or cell information of the first user equipment includes: searching for at least one corresponding DRX configuration in a first correspondence relationship based on the geographic location information of the first user equipment, and determining the recommended DRX configuration from the at least one DRX configuration; or searching for at least one corresponding DRX configuration in a second correspondence relationship based on the cell information where the first user equipment is located, and determining the recommended DRX configuration from the at least one DRX configuration; wherein the first correspondence relationship includes a correspondence between geographic location information and DRX configuration; and the second correspondence relationship includes a correspondence between cell information and DRX configuration.

[0123] In some embodiments, determining the recommended DRX configuration from the at least one DRX configuration includes: selecting a DRX configuration from the at least one DRX configuration as the recommended DRX configuration based on the service type, service cycle or service priority of the received service; or randomly selecting a DRX configuration from the at least one DRX configuration as the recommended DRX configuration.

[0124] In practical applications, the network may pre-divide the geographic location into multiple geographic zones (ZONEs), then configure one or more DRX configurations for each geographic zone. Based on the geographic location of the first user equipment, the network determines which geographic zone (represented by a ZONE or ZONE ID) the first user equipment is in. Based on the ZONE or ZONE ID (geographic zone identifier), the network determines one or more corresponding DRX configurations. If multiple DRX configurations are determined, the network determines one as a recommended DRX configuration. The network may pre-divide the cells into multiple cell groups (Cell Groups), then configure one or more DRX configurations for each cell group. Based on information about the cell in which the first user equipment is located (represented by a Cell Group or Cell Group ID), the network determines one or more corresponding DRX configurations based on the Cell Group or Cell Group ID (cell group identifier). If multiple DRX configurations are determined, the network determines one as a recommended DRX configuration. The network may also directly configure one or more DRX configurations for a cell. The first user equipment determines one or more corresponding DRX configurations based on the cell in which the first user equipment is located or the cell ID (cell ID). If multiple DRX configurations are determined, the network determines one as a recommended DRX configuration.

[0125] Exemplarily, UE 1 determines one or more DRX configurations based on a first correspondence, where the first correspondence includes a correspondence between a geographic zone (ZONE) or zone ID and one or more DRX configurations. A second correspondence includes a correspondence between a cell (cell ID) and one or more DRX configurations. The DRX configuration includes one or more of the first to sixth parameters. The first correspondence and the second correspondence are network configurations or pre-configurations.

[0126] Furthermore, UE 1 first determines its own geographical location based on the positioning system, and then determines which geographical zone it is in based on its own geographical location, and then determines one or more DRX configurations based on the zone or zone ID and the first corresponding relationship. If UE 1 determines multiple DRX configurations, UE 1 determines one DRX configuration from them. For example, UE 1 randomly determines a DRX configuration from them, or UE 1 determines a DRX configuration from them based on the type of service received (such as periodic service or non-periodic service, etc.) or the period of the service received or the priority of the service received. The above-mentioned geographical area division information, exemplarily, the length and width of each zone, the absolute or relative offset of longitude and latitude, the accuracy and latitude reference point, etc., are configured or pre-configured by the network.

[0127] UE 1 determines one or more DRX configurations based on the cell in which it is located or the ID of the cell in which it is located and the second correspondence. If UE 1 determines multiple DRX configurations, UE 1 determines one DRX configuration from among them. For example, UE 1 randomly determines a DRX configuration from among them, or UE 1 determines a DRX configuration from among them based on the type of received service (such as periodic service or non-periodic service), the period of the received service, or the priority of the received service.

[0128] Step 202: Determine a first DRX configuration of the first user equipment according to the recommended DRX configuration;

[0129] In some embodiments, if the recommended DRX configuration is determined using the above-described method 3, determining the first DRX configuration of the first user equipment based on the recommended DRX configuration includes: using the recommended DRX configuration as the first DRX configuration. That is, if the recommended DRX configuration is determined using the above-described method 3, the recommended DRX configuration is the first DRX configuration.

[0130] If the above-mentioned 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 sent by the second user equipment according to the recommended DRX configuration.

[0131] Figure 9 This is a flow chart of a method for determining a first DRX configuration in an embodiment of the present application. Figure 9 As shown, determining the first DRX configuration of the first user equipment according to the recommended DRX configuration includes:

[0132] Step 301: Send one or more recommended DRX configurations to the second user equipment;

[0133] That is, the first user equipment determines one or more recommended DRX configurations according to the above-mentioned recommended DRX configuration determination method, and sends the determined one or more recommended DRX configurations to the second user equipment to determine the first DRX configuration.

[0134] Optionally, when there is a connection with other UEs, one or more recommended DRX configurations are sent to the second terminal device.

[0135] Optionally, when there is no connection with other UEs, one or more recommended DRX configurations are sent to the second terminal device.

[0136] Step 302: Receive a configuration response from the second user equipment;

[0137] In some embodiments, the 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.

[0138] Specifically, the receiving of the first DRX configuration generated by the second user equipment according to the recommended DRX configuration and / or the second DRX configuration includes: the second user equipment determines that the recommended DRX configuration is available, and receives the first DRX configuration generated by the second user equipment according to the recommended DRX configuration; or, the second user equipment determines that the recommended DRX configuration is unavailable, and receives the first DRX configuration generated by the second user equipment according to the second DRX configuration; or, receiving the first DRX configuration generated by the second user equipment according to the recommended DRX configuration and the second DRX configuration.

[0139] It should be noted that when the first DRX configuration is generated based on the recommended DRX configuration and the second DRX configuration, it may be related to whether the recommended DRX configuration is available, or it may be unrelated. In other words, the second user equipment may directly generate the first DRX configuration based on the two, or, when determining that the recommended DRX configuration is available, generate the first DRX configuration based on the recommended DRX configuration and the second DRX configuration.

[0140] In some embodiments, the second DRX configuration is configured or pre-configured by a network device.

[0141] In some embodiments, the method by which the second user equipment determines whether the recommended DRX configuration is available may be: determining whether the long or short DRX cycle length of the recommended DRX configuration can meet the service requirements of the second user equipment. For example, determining whether the long DRX cycle or short DRX cycle indicated by the recommended DRX configuration is less than the service cycle; if so, the service requirement is met; otherwise, the service requirement is not met; or determining whether the long DRX cycle or short DRX cycle indicated by the recommended DRX configuration is less than or equal to the service cycle; otherwise, the service requirement is not met.

[0142] In some embodiments, when sending a recommended DRX configuration to the second user equipment, receiving a configuration response from the second user equipment includes: when the second user equipment determines that the recommended DRX configuration is available, receiving a first response from the second user equipment; wherein 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.

[0143] In some embodiments, when sending multiple recommended DRX configurations to the second user equipment, receiving a configuration response from the second user equipment includes: receiving a second response from the second user equipment; wherein the second response is used to indicate a target DRX configuration from 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. Here, the target DRX configuration is the first DRX configuration.

[0144] Step 303: Determine the first DRX configuration according to the configuration response.

[0145] 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.

[0146] If the configuration response is the first response, and the recommended DRX configuration is determined to be available based on the first response, then the recommended DRX configuration is the first DRX configuration; if it is not available, the network-configured or pre-configured DRX configuration is used as the first DRX configuration, or the first DRX configuration is obtained based on the current or standard provisions of the first user equipment.

[0147] If the configuration is a second response, if the second response contains index information, the first DRX configuration is determined based on the index information; if it does not contain it, the network-configured or pre-configured DRX configuration is used as the first DRX configuration, or the first DRX configuration is obtained based on the current or standard provisions of the first user equipment.

[0148] Exemplarily, the configuration response can be sent to the first user equipment via a PC5 Radio Resource Control (PC5 RRC) connection or a MAC control unit (MAC Control Element, MAC CE) or the second sidelink control information or the first sidelink control information or a physical sidelink feedback channel (PSFCH).

[0149] Step 203: Perform discontinuous reception on data sent by the second user equipment according to the first DRX configuration.

[0150] In some embodiments, the DRX configuration (including the DRX configuration suggested in the embodiments of the present application, the first DRX configuration, the second DRX configuration, and other DRX configurations) includes at least one of the following parameters: a first parameter, a second parameter, a third parameter, a fourth parameter, a fifth parameter, and a sixth parameter;

[0151] The first parameter is used to indicate a first time length, and the first time length is a time length during which the first user equipment monitors a physical sidelink control channel PSCCH and / or a physical sidelink shared channel PSSCH in a DRX cycle;

[0152] The second parameter is used to indicate a second time length, where the second time length is the time length for which the first user equipment needs to continue monitoring the PSCCH and / or PSSCH after monitoring the PSCCH and / or PSSCH;

[0153] The third parameter is used to indicate a third time length and / or a first offset, where the third time length is the time length of the long DRX cycle, and the first offset is a time offset relative to the time domain reference point 1;

[0154] The fourth parameter is used to indicate a second offset, where the second offset is an offset of the long DRX cycle and / or the short DRX cycle at the time slot level;

[0155] The fifth parameter is used to indicate a fourth time length, where the fourth time length is the time length of the short DRX cycle;

[0156] The sixth parameter is used to indicate a first cycle number. The first user equipment does not monitor the PSCCH and / or PSSCH in the short DRX cycle indicated by the first cycle number and is ready to enter a long DRX cycle.

[0157] The specific implementation process can be referred to Figure 7 The corresponding text part will not be repeated here.

[0158] By adopting the above technical solution, the first user equipment can determine the first DRX configuration based on the recommended DRX configuration. In this way, when the first user equipment acts as a receiving end to perform discontinuous reception of data from different second user equipment, the selectable DRX configuration is limited to a smaller range. This can solve the problem of different user equipment configuring different DRX configurations for the first user equipment, avoid the first user equipment being in the On duration state all the time, and save energy consumption.

[0159] Figure 10 This is a schematic diagram of the NR sidelink physical layer structure, as shown in Figure 10As shown, the physical layer includes PSCCH and PSSCH, where PSCCH is used to transmit first sidelink control information, and PSSCH is used to carry data and second sidelink control information. PSCCH and PSSCH are sent in the same time slot. The first sidelink control information mainly includes fields related to resource sensing, which facilitates other UEs to obtain the time-frequency resources indicated by the first sidelink control information after decoding, thereby excluding the corresponding resources during the resource selection process and avoiding resource collisions. The second sidelink control information mainly includes fields related to data demodulation, which facilitates other UEs to demodulate the data in the corresponding PSSCH.

[0160] In actual applications, UE 2 sends a configuration response to UE 1 via PC5-RRC connection, MAC CE, second sidelink control information, first sidelink control information, or PSFCH. UE 1 performs discontinuous reception according to the received DRX configuration.

[0161] UE 1 is connected to other UEs through unicast or multicast, with UE 1 serving as a receiver. In practical applications, the unicast or multicast connection is a PC5 RRC connection.

[0162] In some embodiments, when UE1 sends a recommended DRX configuration to UE2, the recommended DRX configuration may be carried through a PC5-RRC connection or a MAC CE or a second sidelink control information bearer.

[0163] Figure 11 This is a third flow chart of the sidelink parameter configuration method in an embodiment of the present application, as shown in FIG. Figure 11 As shown, including:

[0164] Step 401: Receive the first DRX configuration determined by the second user equipment according to geographic location information or cell information;

[0165] In some embodiments, the receiving of the first DRX configuration determined by the second user equipment based on the geographic location information or the cell information includes: receiving the first DRX configuration found by the second user equipment in a first correspondence relationship based on the geographic location information; or receiving the first DRX configuration found by the second user equipment in a second correspondence relationship based on the cell information; wherein the first correspondence relationship includes the correspondence between the geographic location information and the DRX configuration; and the second correspondence relationship includes the correspondence between the cell information and the DRX configuration.

[0166] In actual applications, the preset configuration rule is that the second user equipment determines the first DRX configuration based on its own geographic location or cell. In actual applications, the network may pre-divide the geographic location into multiple geographic zones (ZONEs), then configure one or more DRX configurations for each geographic zone, determine which geographic zone the second user equipment is in based on its geographic location (represented by a ZONE or ZONE ID), and then determine one or more corresponding DRX configurations based on the ZONE or ZONE ID (geographic zone identifier). If multiple DRX configurations are determined, one is determined from the multiple as the first DRX configuration. The network may pre-divide the cell into multiple cell groups (Cell Groups), then configure one or more DRX configurations for each cell group, determine which cell group the second user equipment is in based on its cell information (represented by a Cell Group or Cell Group ID), and then determine one or more corresponding DRX configurations based on the Cell Group or Cell Group ID (cell group identifier). If multiple DRX configurations are determined, one is determined from the multiple as the first DRX configuration. The network may also directly configure one or more DRX configurations for a cell. The second user equipment determines the corresponding one or more DRX configurations according to the cell or cell ID (cell ID). If multiple DRX configurations are determined, one is determined from the multiple as the first DRX configuration.

[0167] Exemplarily, UE 2 determines one or more DRX configurations based on a first correspondence, where the first correspondence includes a correspondence between a geographic zone (ZONE) or zone ID and one or more DRX configurations. A second correspondence includes a correspondence between a cell (Cell ID) or cell ID and one or more DRX configurations. The DRX configuration includes one or more of the first to sixth parameters. The first correspondence and the second correspondence are network configurations or pre-configurations.

[0168] Furthermore, UE 2 first determines its own geographical location based on the positioning system, and then determines which geographical zone it is in based on its own geographical location, and then determines one or more DRX configurations based on the zone or zone ID and the first corresponding relationship. If UE 2 determines multiple DRX configurations, UE 2 determines one DRX configuration from them. For example, UE 2 determines a DRX configuration from multiple DRX configurations based on its own service type (periodic service or non-periodic service, etc.) or service cycle or service priority, or UE 2 randomly determines a DRX configuration from them. The above-mentioned geographical area division information, illustratively, the length and width of each zone, the absolute or relative offset of longitude and latitude, the accuracy and latitude reference point, etc., are configured or pre-configured by the network.

[0169] UE 2 determines one or more DRX configurations based on the cell it is in or the ID of the cell it is in and the second correspondence. If UE 2 determines multiple DRX configurations, UE 2 determines one DRX configuration from among them. For example, UE 2 determines one DRX configuration from among the multiple DRX configurations based on its service type (periodic service or aperiodic service, etc.), service cycle, or service priority, or UE 2 randomly determines a DRX configuration from among the multiple DRX configurations.

[0170] In actual applications, UE 2 sends the determined first DRX configuration to UE 1 via PC5 RRC connection or MAC CE or second sidelink control information or first sidelink control information or sidelink feedback channel PSFCH. UE 1 performs discontinuous reception according to the received first DRX configuration.

[0171] Step 402: Perform discontinuous reception on data sent by the second user equipment according to the first DRX configuration.

[0172] In some embodiments, the DRX configuration (including the DRX configuration suggested in the embodiments of the present application, the first DRX configuration, the second DRX configuration, and other DRX configurations) includes at least one of the following parameters: a first parameter, a second parameter, a third parameter, a fourth parameter, a fifth parameter, and a sixth parameter;

[0173] The first parameter is used to indicate a first time length, and the first time length is a time length during which the first user equipment monitors a physical sidelink control channel PSCCH and / or a physical sidelink shared channel PSSCH in a DRX cycle;

[0174] The second parameter is used to indicate a second time length, where the second time length is the time length for which the first user equipment needs to continue monitoring the PSCCH and / or PSSCH after monitoring the PSCCH and / or PSSCH;

[0175] The third parameter is used to indicate a third time length and / or a first offset, where the third time length is the time length of the long DRX cycle, and the first offset is a time offset relative to the time domain reference point 1;

[0176] The fourth parameter is used to indicate a second offset, where the second offset is an offset of the long DRX cycle and / or the short DRX cycle at the time slot level;

[0177] The fifth parameter is used to indicate a fourth time length, where the fourth time length is the time length of the short DRX cycle;

[0178] The sixth parameter is used to indicate a first cycle number. The first user equipment does not monitor the PSCCH and / or PSSCH in the short DRX cycle indicated by the first cycle number and is ready to enter a long DRX cycle.

[0179] The specific implementation process can be referred to Figure 7 The corresponding text part will not be repeated here.

[0180] By adopting the above technical solution, by pre-setting the correspondence between the geographical area or cell and one or more DRX configurations, the first DRX configuration is determined according to the geographical location information or cell information of the second user equipment. In this way, the second user equipment in the same geographical area or the same cell can be configured with the same or similar DRX configuration for the first user equipment, and the selectable DRX configuration is limited to a smaller range. This can solve the problem of different user equipment configuring different DRX configurations for the first user equipment, avoid the first user equipment from being in the On duration state all the time, and save energy consumption.

[0181] Based on the same inventive concept, the embodiment of the present application further provides another sidelink parameter configuration method, which is applied to a second user equipment. Figure 12 This is a fourth flow chart of the sidelink parameter configuration method in an embodiment of the present application, as shown in FIG. Figure 12 As shown, including:

[0182] Step 501: Determine a first DRX configuration of a first user equipment according to a preset configuration rule, and generate a configuration response;

[0183] It should be noted that the preset configuration rules are used to limit the selection range of DRX configuration information for the first user equipment. The preset configuration rules are used to pre-plan the DRX configuration range and limit the selectable DRX configurations to a smaller range. In this way, when the first user equipment, as a receiving end, performs discontinuous reception of other user equipment, it can select the first DRX configuration within the smaller DRX configuration range. This prevents different user equipment from configuring different DRX configurations for the first user equipment, causing the first user equipment to be continuously in the monitoring state and unable to sleep. This ensures that the first user equipment has sufficient sleep period, thereby saving energy consumption of the first user equipment.

[0184] In actual applications, the preset configuration rule may be any rule that limits the selection range of the DRX configuration.

[0185] In some embodiments, determining the first DRX configuration of the first user equipment according to a preset configuration rule and generating a configuration response includes: receiving one or more recommended DRX configurations of the first user equipment; determining the first DRX configuration of the first user equipment according to the recommended DRX configuration, and generating a configuration response.

[0186] Here, the preset configuration rule is that a second user equipment (also referred to as UE2) generates a first DRX configuration based on the DRX configuration recommended by a first user equipment (also referred to as UE1), the second user equipment sends a configuration response to the first user equipment, and the first user equipment performs discontinuous reception based on the first DRX configuration. The DRX configuration recommended by the first user equipment may be configured or pre-configured by a network device for the first user equipment, or the recommended DRX configuration may depend on the implementation of the first user equipment. For example, when the first user equipment is connected to other user equipment, the recommended DRX configuration is obtained based on the DRX configuration corresponding to the other connection.

[0187] It should be noted that the first user equipment serves as the receiving end and the second user equipment serves as the transmitting end. The receiving end can receive data from multiple transmitting ends non-continuously, that is, the first user equipment corresponds to one or more second user equipment, and the DRX configuration corresponding to each connection between the first user equipment and the second user equipment can be determined by the parameter configuration method provided in the embodiment of the present application.

[0188] In some embodiments, determining the first DRX configuration of the first user equipment according to a preset configuration rule and generating a configuration response includes: receiving the DRX configuration recommended by 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.

[0189] Here, the preset configuration rule is that the second user equipment reports the recommended DRX configuration to the network device, and the network device determines the first DRX configuration according to the recommended DRX configuration, or the network device configures the first DRX configuration according to actual communication requirements.

[0190] Exemplarily, the network device determines that the recommended DRX configuration is available, and generates a first DRX configuration based on the recommended DRX configuration; or, the network device determines that the recommended DRX configuration is unavailable, and generates a first DRX configuration based on the second DRX configuration; or, generates the first DRX configuration based on the recommended DRX configuration and the second DRX configuration; or, generates the first DRX configuration based on the second DRX configuration.

[0191] In some embodiments, determining the first DRX configuration of the first user equipment according to a preset configuration rule and generating a configuration response includes: determining the first DRX configuration according to the geographic location information or cell information of the second user equipment; and using the first DRX configuration as the configuration response.

[0192] Here, the preset configuration rule is that the second user equipment determines the first DRX configuration according to its own geographical location or cell.

[0193] In this way, the DRX configuration range is pre-planned using preset configuration rules, limiting the selectable DRX configurations to a smaller range. When the first user equipment, as a receiving end, performs discontinuous reception of other user equipment, it can select the first DRX configuration within the smaller DRX configuration range. This prevents different user equipment from configuring different DRX configurations for the first user equipment, causing the first user equipment to be continuously in a listening state and unable to sleep. This ensures that the first user equipment has a sufficient sleep period, thereby saving energy consumption of the first user equipment.

[0194] Step 502: Send the configuration response to the first user equipment, so that the first user equipment performs discontinuous reception on data sent by the second user equipment according to the first DRX configuration determined in the configuration response.

[0195] In some embodiments, the DRX configuration (including the DRX configuration suggested in the embodiments of the present application, the first DRX configuration, the second DRX configuration, and other DRX configurations) includes at least one of the following parameters: a first parameter, a second parameter, a third parameter, a fourth parameter, a fifth parameter, and a sixth parameter;

[0196] The first parameter is used to indicate a first time length, and the first time length is a time length during which the first user equipment monitors a physical sidelink control channel PSCCH and / or a physical sidelink shared channel PSSCH in a DRX cycle;

[0197] The second parameter is used to indicate a second time length, where the second time length is the time length for which the first user equipment needs to continue monitoring the PSCCH and / or PSSCH after monitoring the PSCCH and / or PSSCH;

[0198] The third parameter is used to indicate a third time length and / or a first offset, where the third time length is the time length of the long DRX cycle, and the first offset is a time offset relative to the time domain reference point 1;

[0199] The fourth parameter is used to indicate a second offset, where the second offset is an offset of the long DRX cycle and / or the short DRX cycle at the time slot level;

[0200] The fifth parameter is used to indicate a fourth time length, where the fourth time length is the time length of the short DRX cycle;

[0201] The sixth parameter is used to indicate a first cycle number. The first user equipment does not monitor the PSCCH and / or PSSCH in the short DRX cycle indicated by the first cycle number and is ready to enter a long DRX cycle.

[0202] The specific implementation process can be referred to Figure 7 The corresponding text part will not be repeated here.

[0203] By adopting the above solution, the DRX configuration range is pre-planned through preset configuration rules, and the selectable DRX configurations are limited to a smaller range. The first DRX configuration determined by the second user equipment according to the preset configuration rules can solve the problem of different user equipment configuring different DRX configurations for the first user equipment, avoid the first user equipment being in the Onduration state all the time, and save energy consumption.

[0204] The following further illustrates how to determine the first DRX configuration in the embodiment of the present application. Figure 13 This is a fifth flow chart of the sidelink parameter configuration method in the embodiment of the present application, as shown in FIG. Figure 13 As shown, including:

[0205] Step 601: Receive one or more recommended DRX configurations of the first user equipment;

[0206] It should be noted that the method for generating the recommended DRX configuration may refer to the embodiment corresponding to the above-mentioned first user equipment, which will not be described in detail here.

[0207] Step 602: Determine a first DRX configuration for the first user equipment according to the recommended DRX configuration, and generate a configuration response;

[0208] In some embodiments, when receiving a recommended DRX configuration sent by the first user equipment, determining the first DRX configuration of the first user equipment based on the recommended DRX configuration and generating a configuration response includes: generating a first DRX configuration based on the recommended DRX configuration and / or the second DRX configuration; and using the first DRX configuration as the configuration response.

[0209] Specifically, the generating of the first DRX configuration based on the recommended DRX configuration and / or the second DRX configuration includes: determining that the recommended DRX configuration is available, and generating the first DRX configuration based on the recommended DRX configuration; or, determining that the recommended DRX configuration is unavailable, and generating the first DRX configuration based on the second DRX configuration; or, generating the first DRX configuration based on the recommended DRX configuration and the second DRX configuration.

[0210] It should be noted that when the first DRX configuration is generated based on the recommended DRX configuration and the second DRX configuration, it may be related to whether the recommended DRX configuration is available, or it may be unrelated. In other words, the second user equipment may directly generate the first DRX configuration based on the two, or, when determining that the recommended DRX configuration is available, generate the first DRX configuration based on the recommended DRX configuration and the second DRX configuration.

[0211] In some embodiments, the second DRX configuration is configured or pre-configured by a network device.

[0212] In some embodiments, the method by which the second user equipment determines whether the recommended DRX configuration is available may be: determining whether the long or short DRX cycle length of the recommended DRX configuration can meet the service requirements of UE 2. For example, whether the long DRX cycle or short DRX cycle indicated by the recommended DRX configuration is less than the service cycle; if so, the service requirement is met; otherwise, the service requirement is not met; or if less than or equal to the service requirement, the service requirement is met; otherwise, the service requirement is not met.

[0213] In some other embodiments, upon receiving a recommended DRX configuration sent by the first user equipment, determining a first DRX configuration for the first user equipment based on the recommended DRX configuration and generating a configuration response includes: determining that the recommended DRX configuration is available, generating a first response; wherein the first response is used to indicate that the recommended DRX configuration is available; and using the first response as the configuration response. 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.

[0214] In other embodiments, upon receiving multiple recommended DRX configurations sent by the first user equipment, determining the first DRX configuration of the first user equipment based on 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; wherein the second response is used to indicate a target DRX configuration from the multiple recommended DRX configurations; and using the second response as the configuration response. For example, the second response includes index information of the target DRX configuration, or does not include any index information. Here, the target DRX configuration is the first DRX configuration.

[0215] Step 603: Send the configuration response to the first user equipment.

[0216] In the embodiment of the present application, after receiving the configuration response, the first user equipment performs discontinuous reception on data sent by the second user equipment according to the first DRX configuration determined in the configuration response.

[0217] Specifically, if the configuration response is the first DRX configuration, step 602 may be replaced by determining the 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.

[0218] If the configuration response is the first response, and the recommended DRX configuration is determined to be available based on the first response, then the recommended DRX configuration is the first DRX configuration; if it is not available, the network-configured or pre-configured DRX configuration is used as the first DRX configuration, or the first DRX configuration is obtained based on the current or standard provisions of the first user equipment.

[0219] If the configuration is a second response, if the second response contains index information, the first DRX configuration is determined based on the index information; if it does not contain it, the network-configured or pre-configured DRX configuration is used as the first DRX configuration, or the first DRX configuration is obtained based on the current or standard provisions of the first user equipment.

[0220] Using the above technical solution, the first user equipment sends a recommended DRX configuration to the second user equipment, and the second user equipment determines the first DRX configuration based on the recommended DRX configuration. This limits the DRX configurations that can be selected by the second user equipment to a smaller range, and can solve the problem of different user equipment configuring different DRX configurations for the first user equipment, thereby avoiding the first user equipment being in the On duration state all the time, and saving energy consumption.

[0221] Figure 14 This is a sixth flow chart of the sidelink parameter configuration method in an embodiment of the present application, as shown in FIG. Figure 14 As shown, including:

[0222] Step 701: Determine the first DRX configuration according to the geographic location information or cell information of the second user equipment;

[0223] In some embodiments, determining the first DRX configuration based on the geographic location information or the cell information of the second user equipment includes: searching for at least one corresponding DRX configuration in a first correspondence relationship based on the geographic location information, and determining the first DRX configuration from the at least one DRX configuration; or searching for at least one corresponding DRX configuration in a second correspondence relationship based on the cell information, and determining the first DRX configuration from the at least one DRX configuration; wherein the first correspondence relationship includes the correspondence between the geographic location information and the DRX configuration; and the second correspondence relationship includes the correspondence between the cell information and the DRX configuration.

[0224] In some embodiments, determining the first DRX configuration from the at least one DRX configuration includes: selecting a DRX configuration from the at least one DRX configuration as the first DRX configuration based on the service type, service cycle or service priority of the transmitted service; or randomly selecting a DRX configuration from the at least one DRX configuration as the first DRX configuration.

[0225] In practical applications, the network may pre-divide the geographic location into multiple geographic zones (ZONEs), then configure one or more DRX configurations for each geographic zone, determine which geographic zone the second user equipment is in based on its geographic location (represented by a ZONE or ZONE ID), and then determine one or more corresponding DRX configurations based on the ZONE or ZONE ID (geographic zone identifier). If multiple DRX configurations are determined, one of the multiple configurations is determined as the first DRX configuration. The network may pre-divide the cell into multiple cell groups (Cell Groups), then configure one or more DRX configurations for each cell group, determine which cell group the second user equipment is in based on information about the cell it is in (represented by a Cell Group or Cell Group ID), and then determine one or more corresponding DRX configurations based on the Cell Group or Cell Group ID (cell group identifier). If multiple DRX configurations are determined, one of the multiple configurations is determined as the first DRX configuration. The network may also directly configure one or more DRX configurations for a cell, and the second user equipment determines one or more corresponding DRX configurations based on the cell it is in or its cell ID (cell ID). If multiple DRX configurations are determined, one of the multiple configurations is determined as the first DRX configuration.

[0226] Exemplarily, UE 2 determines one or more DRX configurations based on a first correspondence, where the first correspondence includes a correspondence between a geographic zone (ZONE) or zone ID and one or more DRX configurations. A second correspondence includes a correspondence between a cell (Cell ID) or cell ID and one or more DRX configurations. The DRX configuration includes one or more of the first to sixth parameters. The first correspondence and the second correspondence are network configurations or pre-configurations.

[0227] Furthermore, UE 2 first determines its own geographical location based on the positioning system, and then determines which geographical zone it is in based on its own geographical location, and then determines one or more DRX configurations based on the zone or zone ID and the first corresponding relationship. If UE 2 determines multiple DRX configurations, UE 2 determines one DRX configuration from them. For example, UE 2 determines a DRX configuration from multiple DRX configurations based on its own service type (periodic service or non-periodic service, etc.) or service cycle or service priority, or UE 2 randomly determines a DRX configuration from them. The above-mentioned geographical area division information, illustratively, the length and width of each zone, the absolute or relative offset of longitude and latitude, the accuracy and latitude reference point, etc., are configured or pre-configured by the network.

[0228] UE 2 determines one or more DRX configurations based on the cell it is in or the ID of the cell it is in and the second correspondence. If UE 2 determines multiple DRX configurations, UE 2 determines one DRX configuration from among them. For example, UE 2 determines one DRX configuration from among the multiple DRX configurations based on its service type (periodic service or aperiodic service, etc.), service cycle, or service priority, or UE 2 randomly determines a DRX configuration from among the multiple DRX configurations.

[0229] In actual applications, UE 2 sends the determined DRX configuration to UE 1 via PC5 RRC connection, MAC CE, second sidelink control information, first sidelink control information, or sidelink feedback channel PSFCH. UE 1 performs discontinuous reception according to the received DRX configuration.

[0230] Step 702: Use the first DRX configuration as a configuration response;

[0231] Step 703: Send the configuration response to the first user equipment.

[0232] In the embodiment of the present application, after receiving the configuration response, the first user equipment performs discontinuous reception on data sent by the second user equipment according to the first DRX configuration determined in the configuration response.

[0233] Specifically, if the configuration response is the first DRX configuration, step 702 and step 703 may be replaced by sending the first DRX configuration to the first user equipment.

[0234] By adopting the above technical solution, by pre-setting the correspondence between the geographical area or cell and one or more DRX configurations, the first DRX configuration is determined according to the geographical location information or cell information of the second user equipment. In this way, the second user equipment in the same geographical area or the same cell can be configured with the same or similar DRX configuration for the first user equipment, and the selectable DRX configuration is limited to a smaller range. This can solve the problem of different user equipment configuring different DRX configurations for the first user equipment, avoid the first user equipment from being in the On duration state all the time, and save energy consumption.

[0235] Based on the same inventive concept, an embodiment of the present application further provides a sidelink parameter configuration device, which is applied to a first user equipment. Figure 15 This is a schematic diagram of the first component structure of the side link parameter configuration device in the embodiment of the present application, as shown in FIG. Figure 15 As shown, the device 80 includes:

[0236] The first processing unit 801 is configured to determine a first DRX configuration of the first user equipment according to a preset configuration rule;

[0237] The first communication unit 802 is configured to perform discontinuous reception on data sent by the second user equipment according to the first DRX configuration.

[0238] In some embodiments, the first processing unit 801 is configured to determine a DRX configuration recommended by the first user equipment; and determine a first DRX configuration of the first user equipment according to the recommended DRX configuration.

[0239] In some embodiments, the first processing unit 801 is configured to determine the recommended DRX configuration according to at least one DRX configuration corresponding to the at least one connection when the first user equipment has at least one connection with at least one other user equipment.

[0240] In some embodiments, the first processing unit 801 is configured to, when there is one connection, use the target parameters of a corresponding DRX configuration as the target parameters of the recommended DRX configuration; when there are at least two connections, use the target parameters of one DRX configuration in the corresponding at least two DRX configurations as the target parameters of the recommended DRX configuration; or, when there are at least two connections, determine the target parameters in the recommended DRX configuration based on at least two target parameters in the corresponding at least two DRX configurations.

[0241] 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 the parameter with the largest number among the at least two target parameters 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.

[0242] In some embodiments, the first processing unit 801 is configured to determine the recommended DRX configuration according to a network device configuration or pre-configuration.

[0243] In some embodiments, the first processing unit 801 is configured to determine the recommended DRX configuration according to geographic location information or cell information of the first user equipment.

[0244] In some embodiments, the first processing unit 801 is configured to search for at least one corresponding DRX configuration in a first correspondence relationship based on the geographic location information of the first user equipment, and determine the recommended DRX configuration from the at least one DRX configuration; or, search for at least one corresponding DRX configuration in a second correspondence relationship based on the cell information where the first user equipment is located, and determine the recommended DRX configuration from the at least one DRX configuration; wherein the first correspondence relationship includes the correspondence between the geographic location information and the DRX configuration; and the second correspondence relationship includes the correspondence between the cell information and the DRX configuration.

[0245] In some embodiments, the first processing unit 801 is configured to select a DRX configuration from the at least one DRX configuration as the recommended DRX configuration based on the service type or service cycle or service priority of the received service; or to randomly select a DRX configuration from the at least one DRX configuration as the recommended DRX configuration.

[0246] In some embodiments, the first processing unit 801 is configured to use the recommended DRX configuration as the first DRX configuration.

[0247] In some embodiments, the first communication unit 802 is configured to send one or more recommended DRX configurations to the second user equipment; receive a configuration response from the second user equipment; and the first processing unit 801 is configured to determine the first DRX configuration based on the configuration response.

[0248] 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 and / or the second DRX configuration.

[0249] In some embodiments, the first communication unit 802 is configured to determine that the second user equipment is available and receive a first DRX configuration generated by the second user equipment based on the recommended DRX configuration; or, the second user equipment determines that the recommended DRX configuration is unavailable and receives a first DRX configuration generated by the second user equipment based on the second DRX configuration; or, receive a first DRX configuration generated by the second user equipment based on the recommended DRX configuration and the second DRX configuration.

[0250] In some embodiments, the second DRX configuration is configured or pre-configured by a network device.

[0251] 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; wherein the first response is used to indicate that the recommended DRX configuration is available.

[0252] In some embodiments, the first communication unit 802 is configured to receive a second response from the second user equipment; wherein the second response is used to indicate a target DRX configuration among the multiple recommended DRX configurations.

[0253] In some embodiments, the first communication unit 802 is configured to receive the first DRX configuration determined by the second user equipment according to geographic location information or cell information.

[0254] In some embodiments, the first communication unit 802 is configured to receive the first DRX configuration found by the second user equipment in the first correspondence relationship based on the geographic location information; or, to receive the first DRX configuration found by the second user equipment in the second correspondence relationship based on the cell information where it is located; wherein the first correspondence relationship includes the correspondence between the geographic location information and the DRX configuration; and the second correspondence relationship includes the correspondence between the cell information and the DRX configuration.

[0255] In some embodiments, the DRX configuration includes at least one of the following parameters: a first parameter, a second parameter, a third parameter, a fourth parameter, a fifth parameter, and a sixth parameter;

[0256] The first parameter is used to indicate a first time length, and the first time length is a time length during which the first user equipment monitors a physical sidelink control channel PSCCH and / or a physical sidelink shared channel PSSCH in a DRX cycle;

[0257] The second parameter is used to indicate a second time length, where the second time length is the time length for which the first user equipment needs to continue monitoring the PSCCH and / or PSSCH after monitoring the PSCCH and / or PSSCH;

[0258] The third parameter is used to indicate a third time length and / or a first offset, where the third time length is the time length of the long DRX cycle, and the first offset is a time offset relative to the time domain reference point 1;

[0259] The fourth parameter is used to indicate a second offset, where the second offset is an offset of the long DRX cycle and / or the short DRX cycle at the time slot level;

[0260] The fifth parameter is used to indicate a fourth time length, where the fourth time length is the time length of the short DRX cycle;

[0261] The sixth parameter is used to indicate a first cycle number. The first user equipment does not monitor the PSCCH and / or PSSCH in the short DRX cycle indicated by the first cycle number and is ready to enter a long DRX cycle.

[0262] By using the above-mentioned device, the DRX configuration range is pre-planned through preset configuration rules, and the selectable DRX configurations are limited to a smaller range. The first DRX configuration determined by the first user equipment according to the preset configuration rules can solve the problem of different user equipment configuring different DRX configurations for the first user equipment, avoid the first user equipment being in the Onduration state all the time, and save energy consumption.

[0263] The embodiment of the present application further provides another sidelink parameter configuration device, which is applied to a second user equipment. Figure 16 This is a schematic diagram of the second component structure of the side link parameter configuration device in the embodiment of the present application, as shown in FIG. Figure 16 As shown, the device 90 includes:

[0264] The second processing unit 901 is configured to determine a first DRX configuration of the first user equipment according to a preset configuration rule, and generate a configuration response;

[0265] The second communication unit 902 is configured to send the configuration response to the first user equipment, so that the first user equipment performs discontinuous reception on data sent by the second user equipment according to the first DRX configuration determined in the configuration response.

[0266] In some embodiments, the second communication unit 902 is configured to receive one or more recommended DRX configurations of the first user equipment; the second processing unit 901 is configured to determine the first DRX configuration of the first user equipment according to the recommended DRX configuration and generate a configuration response.

[0267] In some embodiments, when the second communication unit 902 is configured to receive a recommended DRX configuration sent by the first user equipment, the second processing unit 901 is configured to generate a first DRX configuration based on the recommended DRX configuration and / or the second DRX configuration; and use the first DRX configuration as the configuration response.

[0268] In some embodiments, the second processing unit 901 is configured to determine that the recommended DRX configuration is available and generate a first DRX configuration based on the recommended DRX configuration; or, determine that the recommended DRX configuration is unavailable and generate a first DRX configuration based on the second DRX configuration; or, generate the first DRX configuration based on the recommended DRX configuration and the second DRX configuration.

[0269] In some embodiments, the second DRX configuration is configured or pre-configured by a network device.

[0270] In some embodiments, when the second communication unit 902 is configured to receive a 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 and generate a first response; wherein the first response is used to indicate that the recommended DRX configuration is available; and the first response is used as the configuration response.

[0271] In some embodiments, when the second communication unit 902 is configured to receive multiple recommended DRX configurations sent by the first user equipment, the second processing unit 901 is configured to determine a target DRX configuration from the multiple recommended DRX configurations and generate a second response; wherein the second response is used to indicate a target DRX configuration among the multiple recommended DRX configurations; and the second response is used as the configuration response.

[0272] In some embodiments, the second communication unit 902 is configured to receive the DRX configuration suggested by the first user equipment; send the suggested DRX configuration to the network device; receive the first DRX configuration sent by the network device; and use the first DRX configuration as the configuration response.

[0273] In some embodiments, the second processing unit 901 is configured to determine the first DRX configuration according to geographic location information or cell information of the second user equipment; and use the first DRX configuration as the configuration response.

[0274] In some embodiments, the second processing unit 901 is configured to search for at least one corresponding DRX configuration in a first correspondence relationship based on geographic location information, and determine the first DRX configuration from the at least one DRX configuration; or, search for at least one corresponding DRX configuration in a second correspondence relationship based on cell information, and determine the first DRX configuration from the at least one DRX configuration; wherein the first correspondence relationship includes a correspondence between geographic location information and DRX configuration; and the second correspondence relationship includes a correspondence between cell information and DRX configuration.

[0275] In some embodiments, the second processing unit 901 is configured to select a DRX configuration from the at least one DRX configuration as the first DRX configuration based on the service type, service cycle or service priority of the sending service; or to randomly select a DRX configuration from the at least one DRX configuration as the first DRX configuration.

[0276] In some embodiments, the DRX configuration includes at least one of the following parameters: a first parameter, a second parameter, a third parameter, a fourth parameter, a fifth parameter, and a sixth parameter;

[0277] The first parameter is used to indicate a first time length, and the first time length is a time length during which the first user equipment monitors a physical sidelink control channel PSCCH and / or a physical sidelink shared channel PSSCH in a DRX cycle;

[0278] The second parameter is used to indicate a second time length, where the second time length is the time length for which the first user equipment needs to continue monitoring the PSCCH and / or PSSCH after monitoring the PSCCH and / or PSSCH;

[0279] The third parameter is used to indicate a third time length and / or a first offset, where the third time length is the time length of the long DRX cycle, and the first offset is a time offset relative to the time domain reference point 1;

[0280] The fourth parameter is used to indicate a second offset, where the second offset is an offset of the long DRX cycle and / or the short DRX cycle at the time slot level;

[0281] The fifth parameter is used to indicate a fourth time length, where the fourth time length is the time length of the short DRX cycle;

[0282] The sixth parameter is used to indicate a first cycle number. The first user equipment does not monitor the PSCCH and / or PSSCH in the short DRX cycle indicated by the first cycle number and is ready to enter a long DRX cycle.

[0283] By using the above-mentioned device, the DRX configuration range is pre-planned through preset configuration rules, and the selectable DRX configurations are limited to a smaller range. The first DRX configuration determined by the second user equipment according to the preset configuration rules can solve the problem of different user equipment configuring different DRX configurations for the first user equipment, avoid the first user equipment being in the Onduration state all the time, and save energy consumption.

[0284] The embodiment of the present application also provides a user equipment, Figure 17 This is a schematic diagram of the composition structure of the first user equipment in an embodiment of the present application. Figure 17 As shown, the first user equipment 100 includes: a processor 1001 and a memory 1002 configured to store a computer program that can be run on the processor;

[0285] The processor 1001 is configured to execute the method steps in the aforementioned embodiment when running the computer program. Optionally, 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 equipment.

[0286] The transceiver 1003 may include a transmitter and a receiver. The transceiver 1003 may further include an antenna, and the number of antennas may be one or more.

[0287] Of course, in actual application, the various components in the first user device are coupled together via a bus system. It is understood that the bus system is used to enable communication between these components. In addition to a data bus, the bus system also includes a power bus, a control bus, and a status signal bus.

[0288] Figure 18 This is a schematic diagram of the structure of the second user equipment in an embodiment of the present application. Figure 18 As shown, the second user equipment 110 includes: a processor 1101 and a memory 1102 configured to store a computer program that can be run on the processor;

[0289] The processor 1101 is configured to execute the method steps in the aforementioned embodiment when running a computer program.

[0290] Optionally, 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. The transceiver 1103 may include a transmitter and a receiver. The transceiver 1103 may further include one or more antennas.

[0291] Of course, in actual application, the various components in the first user device are coupled together via a bus system. It is understood that the bus system is used to enable communication between these components. In addition to a data bus, the bus system also includes a power bus, a control bus, and a status signal bus.

[0292] The embodiment of the present application further provides a chip, Figure 19 It is a schematic structural diagram of the chip of an embodiment of the present application. Figure 19 The chip 120 shown includes a processor 1201, which can call and run a computer program from a memory to implement the method in the embodiment of the present application. Figure 19 As shown, the chip 120 may further include a memory 1202. The processor 1201 may call and run a computer program from the memory 1202 to implement the method in the embodiment of the present application. The memory 1202 may be a separate device independent of the processor 1201, or may be integrated into the processor 1201. Optionally, the chip 120 may further include an input interface 1203. The processor 1201 may control the input interface 1203 to communicate with other devices or chips, specifically, to obtain information or data sent by other devices or chips. Optionally, the chip 120 may further include an output interface 1204. The processor 1201 may control the output interface 1204 to communicate with other devices or chips, specifically, to output information or data to other devices or chips.

[0293] Optionally, the chip can be applied to the first user device or the second user device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the first user device or the second user device in the various methods of the embodiments of the present application. For the sake of brevity, no further description is given here. It should be understood that the chip mentioned in the embodiments of the present application can also be referred to as a system-level chip, a system chip, a chip system, or a system-on-chip chip, etc.

[0294] Figure 20 This is a schematic diagram of the structure of a communication system provided by an embodiment of the present application. Figure 20 As shown, the communication system 130 includes a first user equipment 1301 and a second user equipment 1302 .

[0295] Among them, the first user equipment 1301 is used to implement the corresponding functions implemented by the first user equipment in the above method, and the second user equipment 1302 is used to implement the corresponding functions implemented by the second user equipment in the above method, which will not be repeated here.

[0296] In actual applications, the first user equipment 1301 serves as a receiving end, and the second user equipment 1302 serves as a sending end. The communication system 130 may further include other user equipments that are communicatively connected to the first user equipment 1301 .

[0297] It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiment can be completed by hardware integrated logic circuits in the processor or software instructions. The above processor can 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, or discrete hardware components. The various methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application can be directly implemented as a hardware decoding processor, or can be implemented by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0298] It is understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, 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), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0299] The present application also provides a computer-readable storage medium for storing a computer program. Optionally, the computer-readable storage medium may be applied to the first user device or the second user device in the present application, and the computer program causes a computer to execute the corresponding processes implemented by the first user device or the second user device in the various methods of the present application. For the sake of brevity, these are not further described here.

[0300] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0301] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0302] In the several embodiments provided in this application, the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0303] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0304] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0305] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application.

[0306] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person 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 based on the scope of protection of the claims.

Claims

1. A sidelink parameter configuration method, applied to a first user equipment, comprising: determining a recommended discontinuous reception (DRX) configuration for the first user equipment; Sending the recommended DRX configuration to the 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; as well as performing discontinuous reception on data sent by the second user equipment according to the first DRX configuration, wherein the recommended DRX configuration is sent by using a PC5 radio resource control connection, The DRX configuration includes a first parameter, a second parameter, a third parameter, and a fourth parameter; The first parameter is used to indicate a first time length, where the first time length is a time length during which the first user equipment monitors 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, where the second time length is the 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, the third time length is the time length of the long DRX cycle, and the first offset is a time offset relative to the time domain reference point 1; and The fourth parameter is used to indicate a second offset, where the second offset is an offset of the long DRX cycle and / or the short DRX cycle at the time slot level. The determining the recommended DRX configuration of the first user equipment includes: searching, according to the geographic location information of the first user equipment, for at least one corresponding DRX configuration in a first correspondence, and determining the recommended DRX configuration from the at least one DRX configuration according to the priority or cycle of the received service; or searching, according to the cell identifier ID of the first user equipment, for at least one corresponding DRX configuration in a second correspondence relationship, and determining the recommended DRX configuration from the at least one DRX configuration; The first corresponding relationship includes the corresponding relationship between geographic location information and DRX configuration; the second corresponding relationship includes the corresponding relationship between cell ID and DRX configuration.

2. The method according to claim 1, wherein The configuration response is sent using a PC5 radio resource control connection.

3. The method according to claim 1, wherein The receiving a configuration response of 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.

4. The method according to claim 3, wherein: The second DRX configuration is configured or pre-configured by a network device.

5. A sidelink parameter configuration method, applied to a second user equipment, comprising: Determining a first DRX configuration for the first user equipment and generating a configuration response; sending the configuration response to the first user equipment, so that the first user equipment performs discontinuous reception of data sent by the second user equipment according to the first DRX configuration determined by the configuration response, The determining the first DRX configuration of the first user equipment and generating a configuration response includes: searching for at least one corresponding DRX configuration in the first correspondence according to the geographic location information of the second user equipment, and determining the first DRX configuration from the at least one DRX configuration according to the priority or cycle of the transmitted service; or searching, according to the cell identifier ID of the second user equipment, for at least one corresponding DRX configuration in a second correspondence, and determining the first DRX configuration from the at least one DRX configuration; The first correspondence includes a correspondence between geographic location information and DRX configuration; the second correspondence includes a correspondence between cell ID and DRX configuration; The first DRX configuration is used as the configuration response.

6. A first user equipment, comprising: a processor and a memory for storing a computer program capable of being executed on the processor, The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the steps of the method according to any one of claims 1 to 4.

7. A second user equipment, comprising: a processor and a memory for storing a computer program capable of being executed on the processor, The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the steps of the method as claimed in claim 5.

8. A computer-readable storage medium, wherein the computer-readable storage medium is used to store a computer program, wherein the computer program enables a computer to execute the steps of the method according to any one of claims 1 to 4.

9. A computer-readable storage medium for storing a computer program, wherein the computer program causes a computer to execute the steps of the method according to claim 5.

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