Control method and device for discontinuous reception of secondary link

Abstract

The present application discloses a method and device for controlling discontinuous reception of a sidelink, the method comprising: obtaining a detection condition of a first physical layer signaling and / or a first wake-up configuration; and controlling Sidelink DRX according to the detection condition of the first physical layer signaling and / or the first wake-up configuration. In an embodiment of the present application, Sidelink DRX is controlled by physical layer signaling or wake-up configuration to achieve more efficient and flexible control of Sidelink DRX, such as startup control, wake-up time extension, etc.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a method and device for controlling sidelink (SL) discontinuous reception (DRX). Background Art

[0002] In the past, the related designs based on Uu DRX can reduce unnecessary downlink control channel monitoring by the terminal as much as possible. For Sidelink, if Sidelink DRX is also introduced on PC5 to realize the monitoring or sending control of Sidelink control channel, the purpose of power saving can also be achieved.

[0003] How to control the monitoring or sending of the Sidelink control channel is an urgent problem to be solved. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a method and device for controlling discontinuous reception of a sidelink, so as to solve the problem of how to control the monitoring or sending of a Sidelink control channel.

[0005] In a first aspect, a Sidelink DRX control method is provided, which is applied to a terminal and includes:

[0006] Acquire a detection condition of a first physical layer signaling and / or a first wake-up configuration;

[0007] Sidelink DRX is controlled according to the detection status of the first physical layer signaling and / or the first wake-up configuration.

[0008] In a second aspect, a Sidelink DRX control device is provided, which is applied to a terminal and includes:

[0009] An acquisition module, used to acquire a detection condition of a first physical layer signaling and / or a first wake-up configuration;

[0010] A control module is used to control Sidelink DRX according to the detection status of the first physical layer signaling and / or the first wake-up configuration.

[0011] In a third aspect, a terminal is provided, comprising: a processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the steps of the method described in the first aspect.

[0012] In a fourth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented.

[0013] According to a fifth aspect, a program product is provided. The program product is stored in a non-volatile storage medium and is executed by at least one processor to implement the steps of the processing method described in the first aspect.

[0014] In a sixth aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the processing method described in the first aspect.

[0015] In the embodiment of the present application, the Sidelink DRX is controlled through physical layer signaling or wake-up configuration to achieve more efficient and flexible control of the Sidelink DRX, such as startup control, wake-up time extension, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of a DRX cycle;

[0017] Figure 2 is a schematic diagram of the timeline flow of the wake-up signal before the CDRX on duration;

[0018] Figure 3 This is a schematic diagram of LTE Uplink, Downlink and Sidelink;

[0019] Figure 4 A block diagram of a wireless communication system to which the embodiments of the present application can be applied;

[0020] Figure 5 is a schematic diagram of a control method for discontinuous reception of a secondary link according to an embodiment of the present application;

[0021] Figure 6 is a schematic diagram of a control device for discontinuous reception of a secondary link according to an embodiment of the present application;

[0022] Figure 7 It is a schematic diagram of a terminal according to an embodiment of the present application. DETAILED DESCRIPTION

[0023] In order to facilitate understanding of the embodiments of the present application, the following technical points are first introduced below:

[0024] (1) Regarding DRX in the RRC_IDLE state:

[0025] In a Long Term Evolution (LTE) or fifth generation mobile communication technology (5th generation, 5G) communication system, a UE in an RRC_IDLE state needs to detect a paging signal sent by a base station at a preconfigured time, and the process of detecting a paging signal is as follows:

[0026] Blindly detect the physical downlink control channel (PDCCH) corresponding to the paging radio network temporary identifier (Paging-RNTI, P-RNTI). If the PDCCH is not detected, then end this detection; if the PDCCH is detected, further detect the physical downlink shared channel (PDSCH) indicated by the PDCCH. If the detected PDSCH is not the paging signal of this terminal, then end the detection; otherwise, the detected PDSCH is the paging signal of this terminal.

[0027] The terminal in the RRC_IDLE state periodically detects paging signals, and the probability of receiving the paging signal belonging to the UE is relatively low. The power consumption of PDCCH and PDSCH detected each time is relatively large, which is not conducive to power saving of the terminal.

[0028] (2) Regarding DRX in the RRC connected state:

[0029] The purpose of discontinuous reception (DRX) is to save power. Terminals in the DRX state do not need to connect to monitor the control channel. However, if the terminal does not monitor the control channel for a long time, once data arrives, the data transmission delay will increase. In order to balance power saving and transmission delay, 5G Media Access Control (MAC) supports two DRX cycles, DRX long cycle and DRX short cycle, according to the length of time the terminal monitors the channel. If the terminal data volume is predicted to arrive frequently or the service is sensitive to latency, the network can configure the terminal to use the DRX short cycle; if the terminal data volume is predicted to be sparse and not sensitive to latency, the network can configure the terminal to use only the DRX long cycle. In order to facilitate the terminal to switch between the DRX long cycle / DRX short cycle, the DRX long cycle is required to be an integer multiple of the DRX short cycle, so as to ensure that the continuous monitoring time (onduration) of the two is aligned.

[0030] To support the DRX mechanism, the base station configures DRX-related timers and parameters for the terminal, including:

[0031] -drx-LongCycleStartOffset: used to configure the period and offset of the long DRX cycle. The units of period and offset are milliseconds.

[0032] -drx-ShortCycle: used to configure the period and offset of the short DRX cycle. The units of period and offset are milliseconds.

[0033] -drx-ShortCycleTimer: used to control the duration of the terminal using the short DRX cycle, the unit is an integer, indicating that once the terminal enters the short DRX cycle, it must maintain the integer multiple of the short cycle;

[0034] -drx-onduration Timer: DRX continuous monitoring timer. During the operation of this timer, the terminal needs to continuously monitor the PDCCH control channel of the network. The timer unit is milliseconds;

[0035] -drx-SlotOffset: The delay of the terminal starting the drx-onduration timer. This parameter is used to set the offset of the start time of DRXonduration relative to the start point of the subframe. The offset is an integer multiple of 1 / 32 milliseconds.

[0036] -drx-InactivityTimer: DRX inactivity timer. This timer starts at the first symbol after the terminal receives the PDCCH signaling for new uplink / downlink data scheduling. During the operation of this timer, the terminal needs to continuously monitor the control channel. The unit of this timer is milliseconds;

[0037] -drx-HARQ-RTT-TimerDL: Downlink Hybrid Automatic RepeatreQuest (HARQ) round-trip time (RTT) timer, maintained based on each downlink process, the timer length is the minimum time interval from the HARQ feedback moment to the receipt of the HARQ retransmission for the process. Only if the data corresponding to the downlink process is not successfully decoded, the terminal will start the timer at the first symbol after the HARQ negative acknowledgment (NACK) feedback of the process. If the current terminal only has drx-HARQ-RTT-TimerDL and / or drx-HARQ-RTT-TimerUL running, the terminal does not need to monitor the PDCCH control channel, and the timer unit is symbol;

[0038] -drx-HARQ-RTT-TimerUL: Uplink HARQ RTT timer, maintained on a per-uplink process basis. The length of this timer is the minimum time interval between the physical uplink shared channel (PUSCH) transmission time and the receipt of the HARQ retransmission for this process. After the uplink PUSCH transmission, the terminal starts the uplink HARQ RTT timer for this uplink process. If the PUSCH transmission uses PUSCH repetition, the uplink HARQ RTT timer starts after the first PUSCH repetition to ensure that the base station can terminate the PUSCH repetition transmission in time after parsing the PUSCH in advance. The timer unit is symbol;

[0039] -drx-RetransmissionTimerDL: Downlink retransmission timer. The timer is started at the next symbol after the drx-HARQ-RTT-TimerDL times out. During the operation of the timer, the terminal monitors the control channel of the network. If it receives downlink scheduling information or downlink configuration authorization (configured grant) for the process, it stops the timer. The timer unit is time slot;

[0040] -drx-RetransmissionTimerUL: Uplink retransmission timer. The timer is started at the next symbol after drx-HARQ-RTT-TimerUL times out. During the operation of this timer, the terminal monitors the control channel of the network. If it receives uplink scheduling information or uplink configured grant for the process, it stops running. The timer unit is time slot.

[0041] The above are the basic mechanisms of existing DRX and the related parameters involved. All these parameters constitute a set of DRX configurations, and the UE performs corresponding discontinuous reception operations according to the configurations.

[0042] See also Figure 1 ,In the time domain, time is divided into continuous DRX cycles.

[0043] In order to further save power consumption of blindly detecting Paging signals or PDCCHs under the above two DRX cycles, the concepts of wake-up signal (WUS) and sleep signal (collectively referred to as power saving signal) are proposed.

[0044] (3) Energy saving signal for RRC_IDLE or RRC_inactive state:

[0045] In each paging cycle in an idle state, before a paging occasion (PO), the base station transmits a power-saving signal to the terminal, and the terminal detects the power-saving signal at a corresponding time.

[0046] If the energy-saving signal instructs the terminal to detect the PDCCH at the PO time, the terminal detects the PDCCH;

[0047] If the energy-saving signal does not instruct the terminal to detect the PDCCH at the PO time, the terminal does not detect the PDCCH;

[0048] Optionally, detecting the wake-up signal is less complex and more power-saving than blindly detecting the Paging signal or the PDCCH.

[0049] (4) Energy saving signal in RRC_connected state:

[0050] See also Figure 2 In each connected discontinuous reception (CDRX) cycle in the RRC_CONNECTED state, before onduration or at the beginning of onduration, the base station transmits a power-saving signal to the terminal, and the terminal detects the power-saving signal at a corresponding time.

[0051] If the energy-saving signal instructs the terminal to detect the PDCCH of onduration, the terminal detects the PDCCH;

[0052] If the energy-saving signal does not instruct the terminal to detect the PDCCH of onduration, the terminal does not detect the PDCCH;

[0053] Optionally, detecting the wake-up signal is less complex and more power-saving than blindly detecting the Paging signal or the PDCCH.

[0054] The energy-saving signal may be a signal similar to PDCCH, or a sequence-related signal such as a channel-state information reference signal (Channel-state information RS, CSI-RS), or an on-offkeying (OOK) signal.

[0055] (5) About Sidelink:

[0056] See also Figure 3The Long Term Evolution (LTE) system has supported sidelinks since its 12th release, which are used for direct data transmission between terminals (User Equipment, UE) without going through network devices.

[0057] LTE Sidelink is designed for specific public safety matters (such as emergency communications in disaster sites such as fires or earthquakes), or vehicle to everything (V2X) communications. Vehicle to everything communications include various services, such as basic safety communications, advanced (autonomous) driving, platooning, sensor expansion, etc. Since LTE Sidelink only supports broadcast communications, it is mainly used for basic safety communications. Other advanced V2X services with strict quality of service (QoS) requirements in terms of latency, reliability, etc. will be supported by New Radio (NR) Sidelink.

[0058] The 5G NR system can be used in operating frequency bands above 6 GHz that are not supported by LTE, and supports a larger operating bandwidth. However, the current version of the NR system only supports the interface between base stations and terminals, and does not yet support the Sidelink interface for direct communication between terminals.

[0059] (6) About Sidelink transmission mode:

[0060] The current sidelink transmission is mainly divided into broadcast, groupcast, and unicast transmission forms. Unicast, as the name implies, is one-to-one transmission. Multicast is one-to-many transmission. Broadcast is also one-to-many transmission, but broadcast does not have the concept of UE belonging to the same group.

[0061] Currently, Sidelink unicast and multicast communications support the physical layer Hybrid Automatic Repeat reQuest (HARQ) feedback mechanism.

[0062] 1. Resource allocation mode Mode 1 and Mode 2

[0063] The resource allocation modes of Sidelink UE are divided into two categories:

[0064] 1) Base station scheduling mode (Mode 1): The network side device (base station) controls and allocates resources to each UE.

[0065] 2) UE autonomous mode (Mode 2): Each UE independently selects resources.

[0066] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0067] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specified order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first" and "second" are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, the "and" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0068] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. However, the following description describes a New Radio (NR) system for illustrative purposes, and the NR terminology is used in most of the following descriptions, although these technologies can also be applied to applications other than NR system applications, such as the 6th generation (6 th Generation, 6G) communication system.

[0069] Figure 4 A block diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a terminal 41 and a network side device 42. Among them, the terminal 41 can also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 41 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), a wearable device (Wearable Device) or a vehicle-mounted device (VUE), a pedestrian terminal (PUE) and other terminal side devices, and the wearable device includes: a bracelet, a headset, glasses, etc. It should be noted that the specific type of the terminal 41 is not limited in the embodiment of the present application. The network side device 42 can be a base station or a core network, wherein the base station can be referred to as a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting and receiving point (Transmitting Receiving Point, TRP) or some other suitable term in the field. As long as the same technical effect is achieved, the base station is not limited to the specified technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0070] The Sidelink DRX control method and device provided in the embodiment of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios.

[0071] See also Figure 5 An embodiment of the present application provides a method for controlling Sidelink DRX. The execution subject of the method may be a terminal. The specific steps include: step 501 and step 502.

[0072] Step 501: Acquire a detection condition of a first physical layer signaling and / or a first wake-up configuration;

[0073] Step 502: Control Sidelink DRX according to the detection status of the first physical layer signaling and / or the first wake-up configuration.

[0074] In some embodiments of the present application, if the detection condition of the first physical layer signaling and / or the first wake-up configuration satisfies a first condition, Sidelink DRX is controlled;

[0075] The first condition includes at least one of:

[0076] (1) detecting the first physical layer signaling;

[0077] (2) performing a specified action at a location for monitoring the first physical layer signaling, and the distance from the last location for monitoring the first physical layer signaling is less than N time units, where N is an integer;

[0078] (3) The first wake-up configuration is a first value;

[0079] (4) the first physical layer signaling is not detected;

[0080] (5) The terminal is configured with a position for monitoring the first physical layer signaling, but fails to detect the first physical layer signaling;

[0081] (6) The first wake-up configuration is a second value, and the second value is different from the first value.

[0082] For example, the first value can be true, and the second value can be false, blank, or other default value.

[0083] In some implementations of the present application, controlling the Sidelink DRX includes:

[0084] (1) Execute the operation of Sidelink drx-onduration timer;

[0085] (2) Selecting a Sidelink DRX configuration to be used from multiple sets of Sidelink DRX configurations;

[0086] (3) Monitoring the Physical Uplink Control Channel (PUCCH) or the Physical Sidelink Control Channel (PSCCH) used to receive sidelink information;

[0087] During the running of the Sidelink drx-onduration Timer, the PUCCH or the PSCCH for receiving the Sidelink information is monitored; or, the PUCCH or the PSCCH for receiving the Sidelink information is monitored immediately.

[0088] Optionally, the Sidelink information may include one or more of the following:

[0089] (1) Physical layer messages;

[0090] Physical layer signaling may include: Sidelink Control Information (SCI) (including first step SCI and / or second step SCI), synchronization signal, broadcast message, system message, feedback message, etc.

[0091] (2) High-level signaling;

[0092] The high-level signaling may include: PC5-S message, PC5-RRC message or Sidelink Media Access Control layer (Media Access Control, MAC) control element (Control Element, CE) and the like.

[0093] (3) Data;

[0094] (4) Reference signal.

[0095] The reference signal may include: CSI Reference Signal (CSI-RS), Synchronization Signal and PBCH block (SSB), etc.

[0096] (4) Activate the semi-static scheduling resources on the Physical SideLink Shared Channel (PSSCH).

[0097] It is understandable that after activating a resource, if there is data during resource activation, corresponding sending or receiving can be performed.

[0098] In some implementations of the present application, performing an operation on a Sidelink drx-onduration Timer includes one of the following:

[0099] (1) Start the Sidelink drx-onduration Timer;

[0100] For example, after the Sidelink DRX offset value, the Sidelink drx-onduration Timer is started; or, according to the protocol agreement and the network side configuration, the Sidelink drx-onduration Timer is started, that is, whether the UE receives the first physical layer signaling or not has no effect on the Sidelink drx-onDurationTimer.

[0101] (2) Do not start the Sidelink drx-onduration Timer.

[0102] In some implementations of the present application, the description of the first physical layer signaling and the first wake-up configuration includes one of the following:

[0103] (1) The first physical layer signaling is a physical layer signaling for Uu DRX, and the first wake-up configuration corresponds to the physical layer signaling for Uu DRX;

[0104] For example, the physical layer signaling may be DCI format 2-6 scrambled by PS-RNTI, such as downlink control signaling scrambled by PS-RNTI (DCI with CRC scrambled by PS-RNTI, DCP) or DCI format 1-1, or DCI format 0-1.

[0105] For DCI format 1-1 or 0-1, the UE can be instructed to switch to dormant BWP. If it is TDD, after the DL BWP is switched, the UL BWP will also be switched. At this time, if the SL BWP is deactivated, the UE enters drx-off. If it is FDD, after the DL BWP is switched, the UL BWP will not be switched. At this time, the UE can enter drx-off or not.

[0106] (2) the first physical layer signaling is physical layer signaling for UuDRX, and the first wake-up configuration is a new wake-up configuration for Sidelink DRX;

[0107] The new wake-up configuration for Sidelink DRX refers to a wake-up configuration different from the wake-up configuration (ps-Wakeup) for Uu DRX, that is, a new configuration IE is used, such as ps-wakeupSidelink. (3) The first physical layer signaling is the new physical layer signaling for Sidelink DRX, and the first wake-up configuration is the wake-up configuration for Uu DRX;

[0108] (4) The first physical layer signaling is a new physical layer signaling for Sidelink DRX, and the first wake-up configuration is a new wake-up configuration for Sidelink DRX.

[0109] In some implementations of the present application, the new physical layer signaling for Sidelink DRX includes one of the following:

[0110] (1) first downlink control information (DCI), having a new DCI format;

[0111] The new DCI format may be other formats different from DCI formats 2-6, such as DCI format 3-0, DCI format 3-1, etc.

[0112] (2) a second DCI, wherein the format of the second DCI is the same as the format of the DCI used for UuDRX, and the second DCI is scrambled with a new Radio Network Temporary Identifier (RNTI);

[0113] For example, the new RNTI may be another RNTI different from the Power Saving RNTI (PS-RNTI), such as a newly defined SL-PS-RNTI.

[0114] (3) a first SCI having a new secondary link control information (SCI) format;

[0115] The new SCI format refers to other formats that are different from the currently defined SCI formats 0-1 and SCI formats 0-2, such as the newly defined SCI formats 0-3.

[0116] (4) A second SCI, which has the same format as the SCI used for the Sidelink, such as SCI format 0-1 or SCI format 0-2, and the second SCI is scrambled with a new physical layer identifier.

[0117] The new physical layer identifier refers to another RNTI different from the PS-RNTI, such as a newly defined SL-PS-RNTI.

[0118] It can be understood that in addition to the above-mentioned ones, it can also be CSI-RS, position reference signal (P-RS), phase tracking reference signal (Phase-tracking RS, PT-RS), demodulation reference signal (Demodulation Reference Signal, DMRS) and other reference signals (Reference Signal, RS) or other sequences.

[0119] In the embodiment of the present application, the Sidelink DRX is controlled through physical layer signaling or wake-up configuration to achieve more efficient and flexible control of the Sidelink DRX, such as startup control, wake-up time extension, etc.

[0120] The following describes the embodiments of the present application in combination with Schemes 1 to 4.

[0121] Solution 1: Control of Sidelink DRX is achieved by reusing existing physical layer signaling for Uu DRX and corresponding wake-up configuration (also called wake-up configuration or high-layer wake-up configuration).

[0122] The base station may send physical layer signaling to the UE, indicating whether the UE starts the drx-onduration Timer after the Uu DRX offset value (drx-SlotOffset).

[0123] When the UE is configured with Sidelink DRX, the physical layer signaling may indicate at least one of the following:

[0124] (1) The base station instructs the UE to send Sidelink information on port PC5;

[0125] a. The sidelink information is scheduled by the base station through dynamic configuration of authorized resources.

[0126] b. The sidelink information will be scheduled by the base station through semi-static configuration of authorized resources.

[0127] Optionally, the Sidelink information may include one or more of the following: (1) physical layer message; physical layer signaling may include SCI (including first step SCI and / or second step SCI), synchronization signal, broadcast message, system message, feedback message, etc. (2) high-layer signaling; high-layer signaling may include: PC5-S message, PC5-RRC message or Sidelink Media Access Control Layer (Media Access Control, MAC) control element (Control Element, CE), etc. (3) data; (4) reference signal; reference signal may include: CSI-RS, SSB, etc.

[0128] (2) The base station instructs the UE to monitor and / or receive Sidelink messages on port PC5;

[0129] (3) The base station indicates that it will send Sidelink configuration information to the UE at the Uu interface;

[0130] Optionally, the configuration information of the Sidelink may include at least one of the following: Sidelink bearer-related configuration; Sidelink sending resource configuration; Sidelink receiving resource configuration; Sidelink discontinuous reception-related configuration.

[0131] (4) When the UE is configured with multiple sets of Sidelink DRX configurations, indicating the Sidelink DRX configuration to be used, such as including identification information corresponding to a DRX configuration;

[0132] Case 1: When the UE meets at least one of the following conditions:

[0133] (1) When the UE detects physical layer signaling;

[0134] Detecting physical layer signaling may refer to whether the physical layer has received the physical layer signaling, or whether the higher layer has received the physical layer signaling indication from the physical layer.

[0135] There is a situation where the physical layer does not detect the physical layer signaling, but still sends a physical layer signaling indication to the upper layer, such as the UE does not go to the location where it needs to monitor the physical layer signaling for other reasons, or the location for monitoring the physical layer signaling is not configured.

[0136] (2) The UE receives at least one of the following actions: grant resource reception, scheduling signaling reception, DRX command MAC CE reception, Long DRX command MAC CE reception, or scheduling request transmission at a location where it needs to monitor physical layer signaling, resulting in the time from the last location (occasion) for monitoring physical layer signaling being less than N milliseconds (ms) or N time slots (slots), where N is an integer;

[0137] (3) The UE does not detect physical layer signaling, but the wakeup configuration is set to true (ps-Wakeup is configured with value true).

[0138] At this time, the UE may take at least one of the following actions:

[0139] (1) The UE performs operations on the Sidelink drx-onduration Timer.

[0140] a. When any of the above conditions is met, the UE starts the Sidelink drx-onduration Timer normally; optionally, a Sidelink DRX offset value can be configured, and the Sidelink drx-onduration Timer will start after the Sidelink DRX offset value.

[0141] b. When any of the above conditions is met, the UE does not start the Sidelink drx-onduration Timer.

[0142] The above "not starting" may only mean not starting in this cycle. The next cycle determines whether the Sidelink drx-onduration Timer is started in the next cycle based on the detection of the physical layer signaling and the wake-up configuration before the start of the next cycle. If there is not a listening position related to the physical layer signaling before each cycle, then not starting can continue until the next cycle with a listening position related to the physical layer signaling, and then determine whether the Sidelink drx-onduration Timer is started in this cycle based on the detection of the physical layer signaling and the wake-up configuration.

[0143] c. When any of the above conditions is met, it does not affect whether the UE starts the Sidelink drx-onduration Timer. Whether the Sidelink drx-onduration Timer is started is determined by other protocol agreements or base station configuration or pre-configured conditions.

[0144] (2) The UE selects the Sidelink DRX configuration to be used from the multiple configurations according to the instruction.

[0145] (3) The UE immediately monitors the PSCCH to receive Sidelink information.

[0146] In addition to PSCCH, other Sidelink physical channels may also be monitored, including at least one of the following: Physical SideLink Broadcast Channel (PSBCH), PSSCH, and Physical SideLink Feedback Channel (PSFCH).

[0147] (4) When the next Sidelink drx-onduration Timer starts, the UE monitors the PSCCH for receiving Sidelink information.

[0148] The above "start" may be started after the UE meets the above conditions, or it may be started due to other reasons. If the UE does not start after meeting the above conditions, then "when the next Sidelinkdrx-onduration Timer starts" here may refer to the start in the next cycle, or the content here is no longer applicable.

[0149] (5) The UE activates the semi-persistent scheduling resources on the PSSCH and sends the sidelink information on the next resource that can be used for transmission.

[0150] (6) The UE activates the semi-persistent scheduling resources on the PSSCH, and sends the Sidelink information on the resources that can be used for transmission when the next Sidelink drx-ondurationTimer starts.

[0151] (7) The UE immediately monitors the PUCCH to receive configuration information about the Sidelink or other Uu signaling not related to Sidelink communication.

[0152] (8) When the next Uu drx-onduration Timer starts, the UE monitors the PUCCH to receive configuration information about the Sidelink or other Uu signaling not related to Sidelink communication.

[0153] (9) When the next Sidelink drx-onduration Timer starts, the UE monitors the PUCCH to receive Sidelink configuration information or other Uu signaling not related to Sidelink communication.

[0154] Case 2: When the UE meets at least one of the following conditions:

[0155] (1) The UE does not detect physical layer signaling;

[0156] (2) The UE is configured with a location for listening to physical layer signaling, but no physical layer signaling is detected;

[0157] (3) The UE's higher-layer wake-up configuration is set to false, or is blank, or to other default values;

[0158] At this time, the UE may take at least one of the following actions:

[0159] (1) The UE performs operations on the Sidelink drx-onduration Timer.

[0160] a. When any of the above conditions is met, the UE starts the Sidelink drx-onduration Timer normally. Optionally, a Sidelink DRX offset value can be configured. The Sidelink drx-onduration Timer will start after the Sidelink DRX offset value.

[0161] b. When any of the above conditions is met, the UE does not start the Sidelink drx-onduration Timer.

[0162] c. When any of the above conditions is met, it does not affect whether the UE starts the Sidelink drx-onduration Timer. Whether the Sidelink drx-onduration Timer is started is determined by other protocol agreements or base station configuration or pre-configured conditions.

[0163] (2) The UE selects the Sidelink DRX configuration to be used from the multiple configurations according to the instruction.

[0164] (3) The UE immediately monitors the PSCCH to receive Sidelink information.

[0165] (4) When the next Sidelink drx-onduration Timer starts, the UE monitors the PSCCH for receiving Sidelink information.

[0166] (5) The UE activates the semi-persistent scheduling resources on the PSSCH and sends the sidelink information on the next resource that can be used for transmission.

[0167] (6) The UE activates the semi-persistent scheduling resources on the PSSCH, and sends the Sidelink information on the resources that can be used for transmission when the next Sidelink drx-ondurationTimer starts.

[0168] (7) The UE immediately monitors the PUCCH to receive configuration information about the Sidelink or other Uu signaling not related to Sidelink communication.

[0169] (8) When the next Uu drx-onduration Timer starts, the UE monitors the PUCCH to receive configuration information about the Sidelink or other Uu signaling not related to Sidelink communication.

[0170] (9) When the next Sidelink drx-onduration Timer starts, the UE monitors the PUCCH to receive Sidelink configuration information or other Uu signaling not related to Sidelink communication.

[0171] Solution 2: Control of Sidelink DRX is achieved by reusing the existing physical layer signaling for Uu DRX and designing a new wake-up configuration for Sidelink DRX.

[0172] Case 1: Therefore, when the UE meets at least one of the following conditions:

[0173] (1) When the UE detects physical layer signaling for Uu DRX;

[0174] (2) The UE receives at least one of the following actions: grant resource reception, scheduling signaling reception, DRX command MAC CE reception, Long DRX command MAC CE reception, and scheduling request transmission at a location where it needs to monitor physical layer signaling for Uu DRX, resulting in a time difference of less than N ms or N slots (N is an integer) from the last location (occasion) where it needs to monitor physical layer signaling for Uu DRX.

[0175] (3) The UE does not detect physical layer signaling;

[0176] (4) When the wakeup configuration for Sidelink DRX received by the UE is set to true (ps-Wakeup is configured with value true)

[0177] (5) The wake-up configuration for Sidelink DRX received by the UE is set to false, or blank, or other default values; optionally, the wake-up configuration for Sidelink DRX may also include the L2 ID of the UE's peer UE (when the UE is in unicast communication), or the group ID corresponding to the UE.

[0178] The scenarios of conditions (1) to (5) above include:

[0179] Scenario 1: The UE detects the physical layer signaling for Uu DRX and performs the following actions:

[0180] Scenario 2: The UE performs the following actions if it does not detect the physical layer signaling for Uu DRX, resulting in the last position for monitoring the physical layer signaling for Uu DRX being less than Nms / slot, which is also regarded as not detecting the physical layer signaling.

[0181] Scenario 3: The UE receives the wake-up configuration for sidelink DRX set to true.

[0182] Scenario 4: The wake-up configuration for sidelink DRX received by the UE is set to false, or empty, or to other default values.

[0183] Scenario 5: Scenario 1 + Scenario 3.

[0184] Scenario 6: Scenario 1 + Scenario 4.

[0185] Scenario 7: Scenario 2 + Scenario 3.

[0186] Scenario 8: Scenario 2 + Scenario 4.

[0187] At this time, the UE may take at least one of the following actions:

[0188] (1) The UE performs operations on the Uu drx-onduration Timer;

[0189] a. When any of the above conditions is met, the UE starts the Uu drx-onduration Timer normally; optionally, the Uu DRX offset value can be configured, and the Sidelink drx-onduration Timer will start after the Sidelink DRX offset value;

[0190] b. When any of the above conditions is met, the UE does not start the Uu drx-onduration Timer;

[0191] c. When any of the above conditions is met, it does not affect whether the UE starts the Uu drx-onduration Timer. Whether the Sidelink drx-onduration Timer is started is determined by other protocol agreements or base station configuration or pre-configured conditions.

[0192] (2) The UE selects the Sidelink DRX configuration to be used from the multiple configurations according to the instruction.

[0193] (3) The UE immediately monitors the PSCCH to receive Sidelink information.

[0194] In addition to PSCCH, other Sidelink physical channels may also be monitored, including at least one of the following: Physical SideLink Broadcast Channel (PSBCH), PSSCH, and Physical SideLink Feedback Channel (PSFCH).

[0195] (4) When the next Sidelink drx-onduration Timer starts, the UE monitors the PSCCH for receiving Sidelink information.

[0196] The above "start" may be started after the UE meets the above conditions, or it may be started due to other reasons. If the UE does not start after meeting the above conditions, then "when the next Sidelinkdrx-onduration Timer starts" here may refer to the start in the next cycle, or the content here is no longer applicable.

[0197] (5) The UE activates the semi-persistent scheduling resources on the PSSCH and sends the sidelink information on the next resource that can be used for transmission.

[0198] (6) The UE activates the semi-persistent scheduling resources on the PSSCH, and sends the Sidelink information on the resources that can be used for transmission when the next Sidelink drx-ondurationTimer starts.

[0199] (7) The UE immediately monitors the PUCCH to receive configuration information about the Sidelink or other Uu signaling not related to Sidelink communication.

[0200] (8) When the next Uu drx-onduration Timer starts, the UE monitors the PUCCH to receive configuration information about the Sidelink or other Uu signaling not related to Sidelink communication.

[0201] (9) When the next Sidelink drx-onduration Timer starts, the UE monitors the PUCCH to receive Sidelink configuration information or other Uu signaling not related to Sidelink communication.

[0202] Case 2: Referring to Case 2 in Solution 1, the wake-up configuration of the UE in Case 2 in Solution 1 is replaced with a new wake-up configuration for Sidelink DRX.

[0203] When the UE meets at least one of the following conditions:

[0204] (1) The UE does not detect the physical layer signaling for Uu DRX;

[0205] (2) The UE is configured with a location for listening to physical layer signaling, but no physical layer signaling is detected;

[0206] (3) The UE's new wake-up configuration for Sidelink DRX is set to false, or empty, or to other default values.

[0207] At this time, the UE may take at least one of the following actions:

[0208] (1) The UE performs operations on the Sidelink drx-onduration Timer;

[0209] a. When any of the above conditions is met, the UE starts the Sidelink drx-onduration Timer normally; optionally, a Sidelink DRX offset value can be configured, and the Sidelink drx-onduration Timer will start after the Sidelink DRX offset value.

[0210] b. When any of the above conditions is met, the UE does not start the Sidelink drx-onduration Timer;

[0211] c. When any of the above conditions is met, it does not affect whether the UE starts the Sidelink drx-onduration Timer. Whether the Sidelink drx-onduration Timer is started or not is determined by other protocol agreements or base station configuration or pre-configured conditions;

[0212] (2) The UE selects the Sidelink DRX configuration to be used from multiple configurations according to the instruction;

[0213] (3) The UE immediately monitors the PSCCH to receive sidelink information;

[0214] (4) When the next Sidelink drx-onduration Timer starts, the UE monitors the PSCCH for receiving Sidelink information;

[0215] (5) The UE activates the semi-persistent scheduling resources on the PSSCH and sends the sidelink information on the next resource that can be used for transmission;

[0216] (6) The UE activates the semi-persistent scheduling resources on the PSSCH and sends the Sidelink information on the resources that can be used for transmission when the next Sidelink drx-ondurationTimer starts.

[0217] (7) The UE immediately monitors the PUCCH to receive configuration information about the Sidelink or other Uu signaling not related to Sidelink communication;

[0218] (8) When the next Uu drx-onduration Timer starts, the UE monitors the PUCCH to receive configuration information about the Sidelink or other Uu signaling not related to Sidelink communication;

[0219] (9) When the next Sidelink drx-onduration Timer starts, the UE monitors the PUCCH to receive Sidelink configuration information or other Uu signaling not related to Sidelink communication.

[0220] Solution 3: Design a new physical layer signaling for Sidelink DRX, but reuse the wake-up configuration of Uu to control Sidelink DRX

[0221] It can be understood that Solution 3 refers to Solution 2, and replaces the physical layer signaling in Solution 2 with new physical layer signaling for Sidelink DRX, and replaces the wake-up configuration for Sidelink DRX with the original Uu wake-up configuration.

[0222] New physical layer signaling for Sidelink DRX, which can be one of the following:

[0223] (1) A DCI using a new DCI format;

[0224] (2) A DCI that uses the same format as the DCI for UuDRX (DCI format 2_6), but is scrambled with a new RNTI.

[0225] (3) an SCI using the new SCI format;

[0226] (4) An SCI that uses the same format as the SCI for Sidelink, but is scrambled with a new physical layer identifier.

[0227] Case 1: Therefore, when the UE meets at least one of the following conditions:

[0228] (1) When the UE detects new physical layer signaling for Sidelink DRX;

[0229] (2) The UE receives at least one of the following actions: grant resource reception, scheduling signaling reception, DRX command MAC CE reception, Long DRX command MAC CE reception, and scheduling request transmission at a location where it needs to monitor new physical layer signaling for Sidelink DRX, resulting in a time interval of less than N ms or N slots (N is an integer) from the last location (occasion) where it needs to monitor new physical layer signaling for Sidelink DRX.

[0230] (3) The UE does not detect new physical layer signaling for Sidelink DRX;

[0231] (4) When the UE receives a higher-level wakeup configuration set to true (ps-Wakeup is configured with valuetrue)

[0232] (5) The high-level wake-up configuration received by the UE is set to false, or empty, or to other default values; optionally, the wake-up configuration for Sidelink DRX may also include the L2 ID of the UE's peer UE (when the UE is in unicast communication), or the group ID corresponding to the UE.

[0233] At this time, the UE may take at least one of the following actions:

[0234] (1)UE performs operations on Uu drx-onduration Timer

[0235] a. When any of the above conditions is met, the UE starts the Uu drx-onduration Timer normally. Optionally, the Uu DRX offset value can be configured, and the Sidelink drx-onduration Timer will start after the Sidelink DRX offset value;

[0236] b. When any of the above conditions is met, the UE does not start the Uu drx-onduration Timer;

[0237] c. When any of the above conditions is met, it does not affect whether the UE starts the Uu drx-onduration Timer. Whether the Sidelink drx-onduration Timer is started is determined by other protocol agreements or base station configuration or pre-configured conditions;

[0238] (2) The UE selects the Sidelink DRX configuration to be used from the multiple configurations according to the instruction.

[0239] (3) The UE immediately monitors the PSCCH to receive Sidelink information.

[0240] In addition to PSCCH, other Sidelink physical channels may also be monitored, including at least one of the following: Physical SideLink Broadcast Channel (PSBCH), PSSCH, and Physical SideLink Feedback Channel (PSFCH).

[0241] (4) When the next Sidelink drx-onduration Timer starts, the UE monitors the PSCCH for receiving Sidelink information.

[0242] The above "start" may be started after the UE meets the above conditions, or it may be started due to other reasons. If the UE does not start after meeting the above conditions, then "when the next Sidelinkdrx-onduration Timer starts" here may refer to the start in the next cycle, or the content here is no longer applicable.

[0243] (5) The UE activates the semi-persistent scheduling resources on the PSSCH and sends the sidelink information on the next resource that can be used for transmission.

[0244] (6) The UE activates the semi-persistent scheduling resources on the PSSCH, and sends the Sidelink information on the resources that can be used for transmission when the next Sidelink drx-ondurationTimer starts.

[0245] (7) The UE immediately monitors the PUCCH to receive configuration information about the Sidelink or other Uu signaling not related to Sidelink communication.

[0246] (8) When the next Uu drx-onduration Timer starts, the UE monitors the PUCCH to receive configuration information about the Sidelink or other Uu signaling not related to Sidelink communication.

[0247] (9) When the next Sidelink drx-onduration Timer starts, the UE monitors the PUCCH to receive Sidelink configuration information or other Uu signaling not related to Sidelink communication.

[0248] Case 2: When the UE meets at least one of the following conditions:

[0249] (1) The UE does not detect new physical layer signaling for Sidelink DRX;

[0250] (2) The UE is configured with a location for listening to new physical layer signaling for Sidelink DRX, but no physical layer signaling is detected;

[0251] (3) The UE's higher layer wake-up configuration is set to false, or empty, or to other default values.

[0252] At this time, the UE may take at least one of the following actions:

[0253] (1) The UE performs operations on the Sidelink drx-onduration Timer;

[0254] a. When any of the above conditions is met, the UE starts the Sidelink drx-onduration Timer normally; optionally, a Sidelink DRX offset value can be configured, and the Sidelink drx-onduration Timer will start after the Sidelink DRX offset value;

[0255] b. When any of the above conditions is met, the UE does not start the Sidelink drx-onduration Timer;

[0256] c. When any of the above conditions is met, it does not affect whether the UE starts the Sidelink drx-onduration Timer. Whether the Sidelink drx-onduration Timer is started or not is determined by other protocol agreements or base station configuration or pre-configured conditions;

[0257] (2) The UE selects the Sidelink DRX configuration to be used from multiple configurations according to the instructions.

[0258] (3) The UE immediately monitors the PSCCH to receive sidelink information.

[0259] (4) When the next Sidelink drx-onduration Timer starts, the UE monitors the PSCCH for receiving Sidelink information.

[0260] (5) The UE activates the semi-static scheduling resources on the PSSCH and sends the sidelink information on the next resource available for transmission.

[0261] (6) The UE activates the semi-static scheduling resources on the PSSCH and sends the Sidelink information on the resources available for transmission when the next Sidelink drx-ondurationTimer starts.

[0262] (7) The UE immediately monitors the PUCCH to receive configuration information about the Sidelink or other Uu signaling not related to Sidelink communication.

[0263] (8) When the next Uu drx-onduration timer starts, the UE monitors the PUCCH to receive configuration information about the Sidelink or other Uu signaling not related to Sidelink communication.

[0264] (9) When the next Sidelink drx-onduration Timer starts, the UE monitors the PUCCH to receive Sidelink configuration information or other Uu signaling not related to Sidelink communication.

[0265] Solution 4: Control the Sidelink DRX by designing a new physical layer signaling for the Sidelink DRX and a new wake-up configuration for the Sidelink DRX.

[0266] It can be understood that Solution 3 refers to Solution 2, and replaces the physical layer signaling used for Uu DRX in Solution 2 with new physical layer signaling used for Sidelink DRX.

[0267] Case 1: Therefore, when the UE meets at least one of the following conditions:

[0268] (1) When the UE detects new physical layer signaling for Sidelink DRX;

[0269] (2) The UE receives at least one of the following actions: grant resource reception, scheduling signaling reception, DRX command MAC CE reception, Long DRX command MAC CE reception, and scheduling request transmission at a location where it needs to monitor new physical layer signaling for Sidelink DRX, resulting in a time interval of less than N ms or N slots (N is an integer) from the last location (occasion) for monitoring DCP.

[0270] (3) The UE does not detect physical layer signaling;

[0271] (4) When the wakeup configuration for Sidelink DRX received by the UE is set to true (ps-Wakeup is configured with value true)

[0272] (5) The wake-up configuration for Sidelink DRX received by the UE is set to false, or blank, or other default values; optionally, the wake-up configuration for Sidelink DRX may also include the L2 ID of the UE's peer UE (when the UE is in unicast communication), or the group ID corresponding to the UE.

[0273] At this time, the UE may take at least one of the following actions:

[0274] (1) The UE performs operations on the Uu drx-onduration Timer;

[0275] a. When any of the above conditions is met, the UE starts the Uu drx-onduration Timer normally. Optionally, the Uu DRX offset value can be configured, and the Sidelink drx-onduration Timer will start after the Sidelink DRX offset value;

[0276] b. When any of the above conditions is met, the UE does not start the Uu drx-onduration Timer;

[0277] c. When any of the above conditions is met, it does not affect whether the UE starts the Uu drx-onduration Timer. Whether the Sidelink drx-onduration Timer is started is determined by other protocol agreements or base station configuration or pre-configured conditions.

[0278] (2) The UE selects the Sidelink DRX configuration to be used from the multiple configurations according to the instruction.

[0279] (3) The UE immediately monitors the PSCCH to receive Sidelink information.

[0280] In addition to PSCCH, other Sidelink physical channels may also be monitored, including at least one of the following: Physical SideLink Broadcast Channel (PSBCH), PSSCH, and Physical SideLink Feedback Channel (PSFCH).

[0281] (4) When the next Sidelink drx-onduration Timer starts, the UE monitors the PSCCH for receiving Sidelink information.

[0282] The above "start" may be started after the UE meets the above conditions, or it may be started due to other reasons. If the UE does not start after meeting the above conditions, then "when the next Sidelinkdrx-onduration Timer starts" here may refer to the start in the next cycle, or the content here is no longer applicable.

[0283] (5) The UE activates the semi-persistent scheduling resources on the PSSCH and sends the sidelink information on the next resource that can be used for transmission.

[0284] (6) The UE activates the semi-persistent scheduling resources on the PSSCH, and sends the Sidelink information on the resources that can be used for transmission when the next Sidelink drx-ondurationTimer starts.

[0285] (7) The UE immediately monitors the PUCCH to receive configuration information about the Sidelink or other Uu signaling not related to Sidelink communication.

[0286] (8) When the next Uu drx-onduration Timer starts, the UE monitors the PUCCH to receive configuration information about the Sidelink or other Uu signaling not related to Sidelink communication.

[0287] (9) When the next Sidelink drx-onduration Timer starts, the UE monitors the PUCCH to receive Sidelink configuration information or other Uu signaling not related to Sidelink communication.

[0288] Case 2: Same as Case 2 in Solution 1, except that the UE wake-up configuration in Case 2 in Solution 1 is replaced with a new wake-up configuration for Sidelink DRX.

[0289] When the UE meets at least one of the following conditions:

[0290] (1) The UE does not detect new physical layer signaling for Sidelink DRX

[0291] (2) The UE is configured with a location for listening to physical layer signaling, but no physical layer signaling is detected;

[0292] (3) The UE's new wake-up configuration for Sidelink DRX is set to false, or empty, or to other default values.

[0293] At this time, the UE may take at least one of the following actions:

[0294] (1) The UE performs operations on the Sidelink drx-onduration Timer;

[0295] a. When any of the above conditions is met, the UE starts the Sidelink drx-onduration Timer normally. Optionally, a Sidelink DRX offset value can be configured. The Sidelink drx-onduration Timer will start after the Sidelink DRX offset value.

[0296] b. When any of the above conditions is met, the UE does not start the Sidelink drx-onduration Timer;

[0297] c. When any of the above conditions is met, it does not affect whether the UE starts the Sidelink drx-onduration Timer. Whether the Sidelink drx-onduration Timer is started is determined by other protocol agreements or base station configuration or pre-configured conditions.

[0298] (2) The UE selects the Sidelink DRX configuration to be used from multiple configurations according to the instruction;

[0299] (3) The UE immediately monitors the PSCCH to receive sidelink information;

[0300] (4) When the next Sidelink drx-onduration Timer starts, the UE monitors the PSCCH for receiving Sidelink information;

[0301] (5) The UE activates the semi-persistent scheduling resources on the PSSCH and sends the sidelink information on the next resource that can be used for transmission;

[0302] (6) The UE activates the semi-persistent scheduling resources on the PSSCH and sends the Sidelink information on the resources that can be used for transmission when the next Sidelink drx-ondurationTimer starts.

[0303] (7) The UE immediately monitors the PUCCH to receive configuration information about the Sidelink or other Uu signaling not related to Sidelink communication;

[0304] (8) When the next Uu drx-onduration timer starts, the UE monitors the PUCCH to receive configuration information about the Sidelink or other Uu signaling not related to Sidelink communication.

[0305] (9) When the next Sidelink drx-onduration Timer starts, the UE monitors the PUCCH to receive Sidelink configuration information or other Uu signaling not related to Sidelink communication.

[0306] Embodiment 1: Case 1 in Solution 2, the existing physical layer signaling for Uu DRX is reused, but a new wake-up configuration for Sidelink DRX is designed.

[0307] Step 1: The base station configures a search space for monitoring physical layer signaling for the UE; the base station configures a DRX-related configuration for the UE, including at least one of the following:

[0308] (1) Power saving wake-up configuration for Uu DRX;

[0309] (2) Power saving wake-up configuration for Sidelink DRX.

[0310] Step 2: When the UE meets at least one of the following conditions, the UE higher layer is informed:

[0311] (1) The physical layer detects physical layer signaling;

[0312] (2) The UE receives at least one of the following actions: grant resource reception, scheduling signaling reception, DRX command MAC CE reception, Long DRX command MAC CE reception, or scheduling request transmission at a location where it needs to monitor physical layer signaling, resulting in a time interval of less than N ms or N slots (N is an integer) from the last location (occasion) where it needs to monitor physical layer signaling.

[0313] Step 3: When the UE upper layer receives the physical layer's indication about the physical layer signaling, if the power saving wake-up configuration for Sidelink DRX is a specific value (such as true, false, empty, default value, etc.), the UE starts the Sidelink drx-onduration Timer after the Sidelink DRX offset value;

[0314] Step 4: The UE monitors the PSCCH while the Sidelink drx-onduration Timer is running.

[0315] Embodiment 2: Solution 3, using a DCI scrambled with a new RNTI.

[0316] Step 1: The base station configures a search space for monitoring DCP for the UE; the base station configures a DRX-related configuration for the UE, including at least one of the following:

[0317] (1) Power saving wake-up configuration for Uu DRX;

[0318] (2) Power Saving RNTI (PS-RNTI);

[0319] (3) RNTI related to Sidelink power saving;

[0320] (4) Sidelink DRX related parameter configuration.

[0321] Step 2: When the UE meets at least one of the following conditions, the UE higher layer is informed:

[0322] (1) The physical layer detects a DCI scrambled with the Sidelink power saving-related RNTI

[0323] (2) The UE receives at least one of the following actions: grant resource reception, scheduling signaling reception, DRX command MAC CE reception, Long DRX command MAC CE reception, and scheduling request transmission at a location where it needs to monitor DCI scrambled with the RNTI related to Sidelink power saving, resulting in a location (occasion) less than N ms or N slots (N is an integer) from the last location (occasion) where it needs to monitor DCI scrambled with the RNTI related to Sidelink power saving;

[0324] Step 3: When the UE upper layer receives the physical layer's indication about the DCI scrambled with the RNTI related to Sidelink power saving, the UE starts the Sidelink drx-onduration Timer after the Sidelink DRX offset value

[0325] Step 4: The UE monitors the PSCCH while the Sidelink drx-onduration Timer is running.

[0326] Embodiment 3: Solution 4 uses a DCI scrambled with a new RNTI and uses a new wake-up configuration for Sidelink DRX.

[0327] Step 1: The base station configures a search space for monitoring DCP for the UE; the base station configures a DRX-related configuration for the UE, including at least one of the following:

[0328] (1) Power saving wake-up configuration for Uu DRX;

[0329] (2) Power saving wake-up configuration for Sidelink DRX;

[0330] (3)PS-RNTI;

[0331] (4) RNTI related to Sidelink power saving;

[0332] (5) Sidelink DRX related parameter configuration.

[0333] Step 2: When the UE meets at least one of the following conditions, the UE higher layer is informed:

[0334] (1) The physical layer detects the DCI scrambled with the Sidelink power saving related RNTI;

[0335] (2) The UE receives at least one of the following actions: grant resource reception, scheduling signaling reception, DRX command MAC CE reception, Long DRX command MAC CE reception, and scheduling request transmission at a location where it needs to monitor DCI scrambled with the RNTI related to Sidelink power saving, resulting in a location (occasion) less than N ms or N slots (N is an integer) from the last location (occasion) where it monitors DCI scrambled with the RNTI related to Sidelink power saving;

[0336] Step 3: When the UE upper layer receives the physical layer's indication about the DCI scrambled with the RNTI related to Sidelink power saving, if the power saving wake-up configuration for Sidelink DRX is a specific value (such as true, false, empty, default value, etc.), the UE starts the Sidelink drx-onduration Timer after the Sidelink DRX offset value;

[0337] Step 4: The UE monitors the PSCCH while the Sidelink drx-onduration Timer is running.

[0338] See also Figure 6 The embodiment of the present application provides a Sidelink DRX control device, which is applied to a terminal. The control device 600 includes:

[0339] An acquisition module 601 is used to acquire a detection condition of a first physical layer signaling and / or a first wake-up configuration;

[0340] The control module 602 is used to control Sidelink DRX according to the detection status of the first physical layer signaling and / or the first wake-up configuration.

[0341] In the embodiment of the present application, the control module 602 is further used to:

[0342] If the detection condition of the first physical layer signaling and / or the first wake-up configuration meets a first condition, controlling Sidelink DRX;

[0343] The first condition includes at least one of:

[0344] (1) detecting the first physical layer signaling;

[0345] (2) performing a specified action at a location for monitoring the first physical layer signaling, and the distance from the last location for monitoring the first physical layer signaling is less than N time units, where N is an integer;

[0346] (3) The first wake-up configuration is a first value;

[0347] (4) the first physical layer signaling is not detected;

[0348] (5) The terminal is configured with a position for monitoring the first physical layer signaling, but fails to detect the first physical layer signaling;

[0349] (6) The first wake-up configuration is a second value, and the second value is different from the first value.

[0350] In the embodiment of the present application, the controlling of the Sidelink DRX includes:

[0351] (1) Execute the operation on the Sidelink drx-onduration timer drx-onduration Timer;

[0352] (2) Selecting a Sidelink DRX configuration to be used from multiple sets of Sidelink DRX configurations;

[0353] (3) Monitoring the physical uplink control channel PUCCH or the physical sidelink control channel PSCCH used to receive sidelink information;

[0354] (4) Activate the semi-static scheduling resources on PSSCH.

[0355] In the embodiment of the present application, performing an operation on the Sidelink drx-onduration Timer includes: starting the Sidelink drx-onduration Timer; or not starting the Sidelink drx-onduration Timer.

[0356] In an embodiment of the present application, starting the Sidelink drx-onduration Timer includes: starting the Sidelink drx-onduration Timer after the Sidelink DRX offset value; or, starting the Sidelink drx-onduration Timer according to a protocol agreement or a network side configuration.

[0357] In the embodiment of the present application, the monitoring of the PUCCH or the PSCCH for receiving the Sidelink information includes: monitoring the PUCCH or the PSCCH for receiving the Sidelink information during the operation of the Sidelink drx-onduration Timer; or, immediately monitoring the PUCCH or the PSCCH for receiving the Sidelink information.

[0358] In some implementations of the present application, the description of the first physical layer signaling and the first wake-up configuration includes one of the following:

[0359] (1) The first physical layer signaling is a physical layer signaling for Uu DRX, and the first wake-up configuration corresponds to the physical layer signaling for Uu DRX;

[0360] (2) the first physical layer signaling is physical layer signaling for Uu DRX, and the first wake-up configuration is a new wake-up configuration for Sidelink DRX;

[0361] (3) The first physical layer signaling is new physical layer signaling for Sidelink DRX, and the first wake-up configuration is a wake-up configuration for UuDRX;

[0362] (4) The first physical layer signaling is a new physical layer signaling for Sidelink DRX, and the first wake-up configuration is a new wake-up configuration for Sidelink DRX.

[0363] In some implementations of the present application, the new physical layer signaling for Sidelink DRX includes one of the following:

[0364] (1) first downlink control information (DCI), having a new DCI format;

[0365] (2) a second DCI, where the format of the second DCI is the same as the format of the DCI used for UuDRX, and the second DCI is scrambled with a new RNTI;

[0366] (3) The first SCI has a new secondary link control information SCI format;

[0367] (4) A second SCI, which has the same format as the SCI used for the Sidelink and is scrambled with a new physical layer identifier.

[0368] The control device provided in the embodiment of the present application can achieve Figure 5 The various processes implemented by the method embodiment shown achieve the same technical effect and will not be described again here to avoid repetition.

[0369] Figure 7 A schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application.

[0370] The terminal 700 includes but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 710.

[0371] Those skilled in the art will appreciate that the terminal 700 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 710 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Figure 7 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0372] It should be understood that in the embodiment of the present application, the input unit 704 may include a graphics processor (Graphics Processing Unit, GPU) 7041 and a microphone 7042, and the graphics processor 7041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 may include two parts: a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0373] In the embodiment of the present application, the radio frequency unit 701 receives downlink data from the network side device and sends it to the processor 710 for processing; in addition, the uplink data is sent to the network side device. Generally, the radio frequency unit 701 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0374] The memory 709 can be used to store software programs or instructions and various data. The memory 709 can mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area can store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 709 can include a high-speed random access memory, and can also include a non-volatile memory, wherein the non-volatile memory can be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or a flash memory. For example, at least one disk storage device, a flash memory device, or other non-volatile solid-state storage devices.

[0375] The processor 710 may include one or more processing units; optionally, the processor 710 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and application programs or instructions, etc., and the modem processor mainly processes wireless communications, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 710.

[0376] The terminal provided in the embodiment of the present application can achieve Figure 5 The various processes implemented by the method embodiment shown achieve the same technical effect and will not be described again here to avoid repetition.

[0377] The embodiment of the present application also provides a program product, which is stored in a non-volatile storage medium and is executed by at least one processor to implement the following Figure 2 The steps of the processing method.

[0378] The embodiment of the present application also provides a readable storage medium on which a program or instruction is stored. When the program or instruction is executed by a processor, the above Figure 2 The various processes of the method embodiment shown can achieve the same technical effect, and will not be described again here to avoid repetition.

[0379] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0380] The present application also provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a network side device program or instruction to implement the above Figure 2 The various processes of the method embodiment shown can achieve the same technical effect, and will not be described again here to avoid repetition.

[0381] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0382] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0383] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0384] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A method for controlling sidelink DRX, applied to a terminal, characterized in that: include: Obtaining detection status of first physical layer signaling; Controlling the Sidelink DRX according to the detection of the first physical layer signaling; The controlling the Sidelink DRX according to the detection condition of the first physical layer signaling includes: If the detection condition of the first physical layer signaling satisfies a first condition, controlling the Sidelink DRX; The first condition includes: A specified behavior is performed at a position for monitoring the first physical layer signaling, and the distance from the last position for monitoring the first physical layer signaling is less than N time units, where N is an integer; The first physical layer signaling is a physical layer signaling for Uu DRX; or, The first physical layer signaling is a new physical layer signaling for Sidelink DRX The controlling of the Sidelink DRX includes at least one of the following: Execute the operation on Sidelink drx-onduration Timer; Select the Sidelink DRX configuration to use from multiple Sidelink DRX configurations; Monitor the physical uplink control channel PUCCH or the physical sidelink control channel PSCCH used to receive sidelink information; Activate the semi-persistent scheduling resources on the physical secondary link shared channel PSSCH.

2. The method according to claim 1, characterized in that The new physical layer signaling for Sidelink DRX includes one of the following: The first downlink control information DCI has a new DCI format; A second DCI, where the format of the second DCI is the same as the format of the DCI for DRX of Uu, and the second DCI is scrambled with a new radio network temporary identifier RNTI; The first sub-link control information SCI has a new SCI format; The second SCI has the same format as the SCI used for Sidelink, and the second SCI is scrambled with a new physical layer identifier.

3. The method according to claim 1, characterized in that: Perform operations on the Sidelink drx-onduration Timer, including: Start Sidelink drx-onduration Timer; or, Do not start the Sidelink drx-onduration Timer.

4. The method according to claim 3, characterized in that Start Sidelink drx-onduration Timer, including: After the Sidelink DRX offset value, start the Sidelink drx-onduration Timer; or, Start the Sidelink drx-onduration Timer according to the protocol agreement and network configuration.

5. The method according to claim 1, characterized in that The monitoring of the PUCCH or the PSCCH for receiving the sidelink information includes: During the operation of the Sidelink drx-onduration Timer, the PUCCH or the PSCCH used to receive Sidelink information is monitored; or, Immediately monitor the PUCCH or the PSCCH used to receive Sidelink information.

6. The method according to claim 1, characterized in that If the detection condition of the first physical layer signaling satisfies the first condition, controlling the Sidelink DRX includes: If the detection condition of the first physical layer signaling and the first wake-up configuration meet a first condition, controlling Sidelink DRX; The first condition further includes at least one of the following: the first physical layer signaling is detected; the first wake-up configuration is a first value; the first physical layer signaling is not detected; the terminal is configured with a position for monitoring the first physical layer signaling, but the first physical layer signaling is not detected; the first wake-up configuration is a second value, and the second value is different from the first value; The first wake-up configuration corresponds to the physical layer signaling for Uu DRX, or the first wake-up configuration is a new wake-up configuration for Sidelink DRX.

7. A Sidelink DRX control device, applied to a terminal, characterized in that: include: An acquisition module, used to acquire detection status of the first physical layer signaling; A control module, configured to control the Sidelink DRX according to the detection status of the first physical layer signaling; The control module is further configured to: control Sidelink DRX if the detection condition of the first physical layer signaling satisfies a first condition; The first condition includes: A specified behavior is performed at a position for monitoring the first physical layer signaling, and the distance from the last position for monitoring the first physical layer signaling is less than N time units, where N is an integer; in, The first physical layer signaling is a physical layer signaling for Uu DRX or, The first physical layer signaling is a new physical layer signaling for Sidelink DRX The controlling of the Sidelink DRX includes at least one of the following: Execute the operation on Sidelink drx-onduration Timer; Select the Sidelink DRX configuration to use from multiple Sidelink DRX configurations; Monitor the physical uplink control channel PUCCH or the physical sidelink control channel PSCCH used to receive sidelink information; Activate the semi-persistent scheduling resources on the physical secondary link shared channel PSSCH.

8. The control device according to claim 7, characterized in that: The new physical layer signaling for Sidelink DRX includes one of the following: A first DCI, having a new DCI format; a second DCI, wherein the format of the second DCI is the same as the format of the DCI for DRX of Uu, and the second DCI is scrambled with a new RNTI; The first sub-link control information SCI has a new SCI format; The second SCI has the same format as the SCI used for Sidelink, and the second SCI is scrambled with a new physical layer identifier.

9. The control device according to claim 7, characterized in that: Perform operations on Sidelink drx-ondurationTimer, including: Start Sidelink drx-onduration Timer; or, Do not start the Sidelink drx-onduration Timer.

10. The control device according to claim 9, characterized in that: Start Sidelink drx-ondurationTimer, including: After the Sidelink DRX offset value, start the Sidelink drx-onduration Timer; or, Start the Sidelink drx-onduration Timer according to the protocol agreement and network configuration.

11. The control device according to claim 7, characterized in that: The monitoring of the PUCCH or the PSCCH for receiving the sidelink information includes: During the operation of the Sidelink drx-onduration Timer, the PUCCH or the PSCCH used to receive Sidelink information is monitored; or, Immediately monitor the PUCCH or the PSCCH used to receive Sidelink information.

12. The control device according to claim 7, characterized in that: If the detection condition of the first physical layer signaling satisfies the first condition, controlling the Sidelink DRX includes: If the detection condition of the first physical layer signaling and the first wake-up configuration meet a first condition, controlling Sidelink DRX; The first condition further includes at least one of the following: the first physical layer signaling is detected; the first wake-up configuration is a first value; the first physical layer signaling is not detected; the terminal is configured with a position for monitoring the first physical layer signaling, but the first physical layer signaling is not detected; the first wake-up configuration is a second value, and the second value is different from the first value; The first wake-up configuration corresponds to the physical layer signaling for Uu DRX, or the first wake-up configuration is a new wake-up configuration for Sidelink DRX.

13. A terminal, characterized in that: include: A processor, a memory, and a program stored in the memory and executable on the processor, wherein the program implements the steps of the method according to any one of claims 1 to 6 when executed by the processor.

14. A readable storage medium, characterized in that: The readable storage medium stores a program or an instruction, and when the program or the instruction is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

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