CN114667769A

CN114667769A - DRX-based lateral feedback method and related device

Info

Publication number: CN114667769A
Application number: CN202080078346.7A
Authority: CN
Inventors: 赵振山; 卢前溪
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-02-07
Filing date: 2020-02-07
Publication date: 2022-06-24
Anticipated expiration: 2040-02-07
Also published as: WO2021155603A1; CN114667769B

Abstract

The embodiment of the application discloses a DRX-based sideline feedback method and a related device, wherein the method comprises the following steps: the method comprises the steps that a first device sends side row data to a second device at a first moment; the first device receives feedback information aiming at the sidestream data from the second device at a second moment, wherein the second moment is within a continuous monitoring range of the first device. The embodiment of the application can improve the data interaction stability and the success rate of the receiving and transmitting end.

Description

DRX-based lateral feedback method and related device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a DRX-based sidestream feedback method and a related apparatus.

Background

In the existing sidelink-based transmission, a Discontinuous Reception (DRX) mechanism is not introduced, and considering that the car networking service may be transmitted in a broadcast manner, all terminals are in a receiving state when not transmitting data, but this may cause the power consumption of the terminals to be very large, and particularly for handheld terminals, how to reduce the power consumption is a problem to be solved. In the issue of sidelink enhancement, it is discussed to introduce a DRX mechanism in sidelink transmission, where the terminal is not in a receiving state all the time, but receives within a continuous monitoring time (i.e. on duration) according to the DRX configuration, and if no data is received, the terminal will switch to DRX, i.e. stop continuous monitoring (off duration), thereby achieving the purpose of power saving. However, for unicast and multicast communication, a sending end sends side-line data to a receiving end, and expects to receive side-line feedback information from the receiving end, and at this time, how to ensure that the side-line feedback information sent by the receiving end is located in a continuous monitoring range of the sending end, so that the feedback information can be correctly received is a problem to be solved.

Disclosure of Invention

The embodiment of the application provides a DRX-based sidestream feedback method and a related device, aiming to improve the data interaction stability and the success rate of a receiving and transmitting terminal.

In a first aspect, an embodiment of the present application provides a DRX-based sidestream feedback method, including:

the method comprises the steps that a first device sends side row data to a second device at a first moment;

the first device receives feedback information aiming at the sidestream data from the second device at a second moment, wherein the second moment is within a continuous monitoring range of the first device.

In a second aspect, an embodiment of the present application provides a DRX-based sidestream feedback method, including:

the second equipment receives the sideline data sent by the first equipment at the first time;

and the second equipment sends feedback information aiming at the sidestream data to the first equipment, wherein the feedback information is received by the first equipment at a second moment, and the second moment is within the continuous monitoring range of the first equipment.

In a third aspect, an embodiment of the present application provides a DRX-based sidestream feedback apparatus, applied to a first device, the apparatus including a processing unit and a communication unit, wherein,

the processing unit is used for sending the collateral data to the second equipment at the first moment through the communication unit; and receiving, by the communication unit, feedback information for the sidestream data from the second device at a second time, the second time being within a continuous listening range of the first device.

In a fourth aspect, the present application provides a DRX-based sidestream feedback apparatus, which is applied to a network device, and includes a processing unit and a communication unit, wherein,

the processing unit is used for receiving the sideline data sent by the first equipment at the first moment through the communication unit; and sending feedback information aiming at the sidestream data to the first equipment through the communication unit, wherein the feedback information is received by the first equipment at a second moment, and the second moment is within a continuous monitoring range of the first equipment.

In a fifth aspect, embodiments of the present application provide a terminal, including a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for performing the steps of any of the methods of the first aspect of the embodiments of the present application.

In a sixth aspect, embodiments of the present application provide a network device, including a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for performing the steps of any of the methods of the second aspect of the embodiments of the present application.

In a seventh aspect, an embodiment of the present application provides a chip, including: and the processor is used for calling and running the computer program from the memory so that the device provided with the chip executes part or all of the steps described in the method of any one of the first aspect and the second aspect of the embodiment of the application.

In an eighth aspect, the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program causes a computer to perform some or all of the steps described in the method of any one of the first aspect or the second aspect of the embodiments of the present application.

In a ninth aspect, embodiments of the present application provide a computer program, where the computer program is operable to cause a computer to perform some or all of the steps as described in any of the methods of the first or second aspects of the embodiments of the present application. The computer program may be a software installation package.

It can be seen that, in the embodiment of the present application, a first device sends sidestream data to a second device at a first time, the first device receives feedback information, which is from the second device and is specific to the sidestream data, at a second time, and the second time is within a continuous monitoring range of the first device, so that the sidestream feedback information sent by a receiving end is located within the continuous monitoring range of the sending end, and thus the sending end can correctly receive the feedback information, and the data interaction stability and the success rate of the receiving and sending ends are improved.

Drawings

Reference will now be made in brief to the drawings that are needed in describing embodiments or prior art.

FIG. 1A is a schematic diagram of a mode A provided by an embodiment of the present application;

FIG. 1B is a schematic diagram of a mode B provided in the embodiments of the present application

Fig. 1C is a schematic diagram of unicast transmission provided by an embodiment of the present application;

fig. 1D is a schematic diagram of multicast transmission provided in an embodiment of the present application;

FIG. 1E is a diagram of a broadcast transmission provided by an embodiment of the present application;

fig. 1F is a schematic diagram of resources of a sidelink feedback channel provided in an embodiment of the present application;

fig. 1G is a schematic diagram of a basic mechanism of DRX provided in an embodiment of the present application;

FIG. 1H is a schematic diagram illustrating information interaction between a UE1 and a UE2 according to an embodiment of the present disclosure;

fig. 2A is a schematic flowchart of a DRX-based sidestream feedback method according to an embodiment of the present disclosure;

fig. 2B is a schematic diagram of transmission resources under a continuous listening state switching according to an embodiment of the present application;

fig. 2C is a schematic transmission resource diagram of a UE1 and a UE2 under the constraint of a second timer according to an embodiment of the present application;

fig. 2D is a schematic transmission resource diagram of a UE1 and a UE2 with the same DRX configuration information according to an embodiment of the present disclosure;

fig. 2E is a schematic transmission resource diagram of a UE1 and a UE2 with different DRX configuration information according to an embodiment of the present disclosure;

fig. 2F is a schematic diagram of transmission resources and PSFCH of sidestream data provided in an embodiment of the present application;

fig. 2G is a schematic diagram of timeslot resources of a PSFCH under a continuous listening range constraint according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a first device according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a second apparatus provided in an embodiment of the present application;

fig. 5 is a block diagram illustrating functional units of a DRX-based sidestream feedback apparatus according to an embodiment of the present disclosure;

fig. 6 is a block diagram illustrating functional units of a DRX-based sidestream feedback apparatus according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

The first device and the second device in the embodiments of the present application may refer to a user equipment, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a relay device, a vehicle-mounted device, a wearable device, a terminal in a future 5G network or a terminal in a future evolved Public Land Mobile Network (PLMN), and the like, which are not limited in this embodiment.

The network device in the embodiment of the present application may be a device for communicating with a terminal, the network device may be a Base Transceiver Station (BTS) in a global system for mobile communications (GSM) system or a Code Division Multiple Access (CDMA) system, may also be a base station (NB, NodeB) in a Wideband Code Division Multiple Access (WCDMA) system, may also be an evolved NodeB (eNB, or eNodeB) in an LTE system, may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or may be a relay device, an access point, a vehicle-mounted device, a wearable device, and a network device in a future 5G network or a network device in a future evolved PLMN network, one or a set of antenna panels (including multiple antenna panels) of a base station in a 5G system, alternatively, the network node may also be a network node that forms a gNB or a transmission point, such as a baseband unit (BBU), a Distributed Unit (DU), or the like, and the embodiment of the present application is not limited.

In some deployments, the gNB may include a Centralized Unit (CU) and a DU. The gNB may further include an Active Antenna Unit (AAU). The CU implements part of the function of the gNB and the DU implements part of the function of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, and implements functions of a Radio Resource Control (RRC) layer and a Packet Data Convergence Protocol (PDCP) layer. The DU is responsible for processing a physical layer protocol and a real-time service, and implements functions of a Radio Link Control (RLC) layer, a Medium Access Control (MAC) layer, and a Physical (PHY) layer. The AAU implements part of the physical layer processing functions, radio frequency processing and active antenna related functions. Since the information of the RRC layer eventually becomes or is converted from the information of the PHY layer, the higher layer signaling, such as the RRC layer signaling, may also be considered to be transmitted by the DU or by the DU + AAU under this architecture. It is to be understood that the network device may be a device comprising one or more of a CU node, a DU node, an AAU node. In addition, the CU may be divided into network devices in an access network (RAN), or may be divided into network devices in a Core Network (CN), which is not limited in this application.

The car networking is a Sidelink transmission technology (SL) based on Device-to-Device (D2D), and unlike the traditional cellular system in which communication data is received or sent through a base station, the car networking system adopts a terminal-to-terminal direct communication mode, which has higher spectral efficiency and lower transmission delay. The technology of car networking is standardized in the Third Generation partnership Project (3 GPP) release 14(Rel-14), defining two transmission modes: mode a and mode B.

Mode A: referring to fig. 1A, transmission resources of a terminal are allocated by a base station, and the terminal transmits data on a sidelink according to the resources allocated by the base station; the base station can allocate resources for single transmission to the terminal and can also allocate resources for semi-static transmission to the terminal; the base station allocates the side link transmission resource through Downlink (DL) control signaling.

And (3) mode B: referring to fig. 1B, the terminal uses a transmission mode of listening (sensing) and reserving (reserving). The terminal acquires an available transmission resource set in a resource pool in an interception mode, and randomly selects a resource from the set to transmit data. Because the service in the car networking system has a periodic characteristic, the terminal generally adopts a semi-static transmission mode, that is, after the terminal selects one transmission resource, the resource is continuously used in a plurality of transmission cycles, so that the probability of resource reselection and resource conflict is reduced. The terminal can carry the information of the reserved secondary transmission resource in the control information transmitted this time, so that other terminals can judge whether the resource is reserved and used by the user by detecting the control information of the user, and the purpose of reducing resource conflict is achieved.

In New Radio (NR) -Vehicle to other devices (V2X), automatic driving needs to be supported, and therefore higher requirements are placed on data interaction between vehicles, such as higher throughput, lower latency, higher reliability, larger coverage, more flexible resource allocation, and the like. In Long Term Evolution (LTE) -V2X, a broadcast transmission scheme is supported, and in NR-V2X, unicast and multicast transmission schemes are introduced. For unicast transmission, the receiving end has only one terminal, as in fig. 1C, unicast transmission is performed between the UE1 and the UE 2; for multicast transmission, the receiving end is all terminals in a communication group, or all terminals within a certain transmission distance, as shown in fig. 1D, UE1, UE2, UE3, and UE4 form a communication group, where UE1 sends data, and other terminal devices in the group are all receiving ends; for the broadcast transmission scheme, the receiving end is any one of the terminals, as shown in fig. 1E, where UE1 is the transmitting end and other terminals around it are all receiving ends.

Side feedback channel: in NR-V2X, a side-row feedback channel is introduced for improved reliability. For example, for unicast transmission, a transmitting end transmits sideline data (including a Physical Sideline Control Channel (PSCCH) and a Physical sideline Shared Channel (psch)) to a receiving end, the receiving end transmits Hybrid Automatic Repeat Request (HARQ) feedback information to the transmitting end, and the transmitting end determines whether retransmission is required according to the feedback information of the receiving end. The HARQ Feedback information is carried in a Sidelink Feedback Channel, such as a Physical Sidelink Feedback Channel (PSFCH). Side line feedback can be activated or deactivated through preconfigured information or network configuration information, if the side line feedback is activated, the receiving end receives side line data sent by the sending end, HARQ ACK or NACK is fed back to the sending end according to a detection result, and the sending end determines to send retransmission data or new data according to the feedback information of the receiving end; if the side-line feedback is deactivated, the receiving end does not need to send feedback information, and the sending end usually sends data in a blind retransmission manner, for example, the sending end repeatedly sends each side-line data for K times, instead of determining whether to send retransmission data according to the feedback information of the receiving end.

Resources of the side feedback channel: in order to reduce the overhead of the PSFCH channel, it is defined that one slot in every N slots includes the PSFCH transmission resource, i.e. the period of the sidelink feedback resource is N slots, where N is 1, 2, 4, the parameter N is pre-configured or network configured, and N is 4, as shown in fig. 1F, where the PSSCHs transmitted in slots 2, 3, 4, 5 have their feedback information transmitted in slot7, so that slot {2, 3, 4, 5} can be regarded as a slot set in which the transmitted PSSCH is corresponding to the PSFCH in the same slot. The transmitting end (TX UE) transmits PSCCH/PSCCH at time slot n, the receiving end (RX UE) transmits PSFCH at the first available time slot after time slot n + k, where k is a configuration parameter, k is 2 or k is 3, e.g., in fig. 1F, network configuration k is 2, TX UE transmits PSCCH/PSCCH at time slot4, and the receiving end transmits PSFCH at the first available time slot after time slot 6, i.e., time slot 7.

DRX mechanism of NR Uu port: in a wireless network, when data needs to be transmitted, a User Equipment (UE) always monitors a Physical Downlink Control Channel (PDCCH) and transmits and receives the data according to an indication message sent by a network side, which causes large power consumption of the UE and large delay of data transmission. Therefore, the 3GPP standard protocol introduces a Discontinuous Reception (DRX) power saving policy in the LTE system.

As shown in fig. 1G, the basic mechanism of DRX is to configure one DRX cycle for a UE in RRC _ CONNECTED state. The DRX cycle is composed of an active period "On Duration" and a dormant period "Opportunity for DRX": in the "On Duration" time, the UE monitors and receives the PDCCH (active period); during the "Opportunity for DRX" time, the UE does not receive the PDCCH to reduce power consumption (sleep period).

In DRX operation, the terminal controls the terminal to activate on duration and deactivate off duration according to some timer parameters configured by the network.

As shown in fig. 1H: the UE1 transmits the PSCCH/PSCCH to the UE2 at a time within the continuous listening range of the UE2 and thus can be received by the UE2, and the UE2 transmits the feedback information PSFCH for the sidestream data to the UE1, but the time of the PSFCH transmission is not within the continuous listening range of the UE1, so that the UE1 cannot receive the feedback information.

In view of the above problem, an embodiment of the present invention provides a DRX-based sidelink feedback method, which is described in detail below with reference to the accompanying drawings.

Referring to fig. 2A, fig. 2A is a schematic flowchart illustrating a DRX-based sidestream feedback method according to an embodiment of the present disclosure, where as shown in the figure, the method includes:

step 201, the first device sends the sidelink data to the second device at a first time.

The side-line data includes first-transmitted or retransmitted side-line data, and may specifically be data carried on PSCCH/PSCCH.

In step 202, the second device receives the sideline data sent by the first device at the first time.

The first time is any one of the transmission periods of the first device transmitting the sideline data, and the first time may be in or not in the continuous monitoring range of the second device, which is not limited herein. In addition, the time when the second device receives the sidelink data is in the continuous listening range of the second device.

Step 203, the second device sends feedback information for the sidestream data to the first device, where the feedback information is received by the first device at a second time, and the second time is within a continuous monitoring range of the first device.

Step 204, the first device receives feedback information for the sidestream data from the second device at a second time, where the second time is within a continuous listening range of the first device.

Wherein the feedback information of the sidestream data may be data carried on the PSFCH.

Wherein, the continuous monitoring range refers to a time range in which the device is in a continuous monitoring state. The second time is a time after the first time, specifically, any one time in a receiving period of the feedback information of the sidestream data, for example, a data receiving completion time of the feedback information of the sidestream data, and the receiving period is within a continuous monitoring range of the first device.

In one possible example, the method further comprises: and the first equipment is converted into a continuous monitoring state. Correspondingly, the first device is converted into a continuous monitoring state after sending the sidestream data.

Wherein the first device may be initially in a sleep period (also referred to as an inactive period) of the DRX mechanism, such as in a sleep state before performing a transmit-side data operation.

In a specific implementation, the first device executes an operation of changing to a continuous monitoring state before a data reception start time of the feedback information of the sidestream data.

As can be seen, in this example, the first device may actively perform DRX state switching, thereby ensuring that feedback information of the sidelink from the second device can be received, and improving stability and success rate of data interaction of the sidelink.

In one possible example, the transitioning of the first device to the continuous listening state includes: and the first equipment is converted into a continuous monitoring state after the sidestream data is sent.

The sending of the sideline data specifically refers to a data sending completion time of the sideline data. The transmission duration of the sidelink data may be 1 slot, 2 slots, 1 sub-slot, 1 sub-frame, etc., and is not limited herein.

For example, as shown in fig. 2B, assuming that the UE1 starts to transmit the PSCCH/PSCCH at time H1 and finishes transmitting the PSCCH/PSCCH at time H2, the second device goes to the continuous listening state at time H2, and the time interval between time H1 and time H2 is one timeslot.

Therefore, in this example, the first device can be switched to the continuous monitoring state after the sidestream data transmission is completed, so that the influence of state switching on the data transmission stability and efficiency is avoided, and the data transmission efficiency is ensured.

In one possible example, the transitioning of the first device to the continuous listening state includes: and the first equipment opens a first timer after sending the sidestream data, and the first equipment is switched to a continuous monitoring state under the condition that the first timer is overtime.

In this possible example, the duration of the first timer is determined according to the time interval between the transmission resource of the sidelink data and the physical sidelink feedback channel PSFCH corresponding to the transmission resource of the sidelink data.

Wherein the transmission resource comprises PSSCH or PSCCH. The duration of the first timer is determined according to the time interval between the sideline data and the corresponding sideline feedback channel. Since the transmission resource of the side-line feedback information is configured for each PSSCH resource pool, the sending end (corresponding to the first device) sends the side-line data in the resource pool, and can know the transmission resource of the side-line feedback corresponding to the resource pool, so that when the sending end sends the side-line data, the sending end can know the transmission time of the side-line feedback channel PSFCH, and therefore, the sending end is switched to the continuous monitoring state before the transmission time of the PSFCH.

As can be seen, in this example, the first timer restricts the state switching of the first device, so that the first device can be switched to the continuous monitoring state before the PSFCH transmission time, and the success rate of the sidelink information interaction is ensured.

In one possible example, the transitioning of the first device to the continuous listening state includes: and the first equipment is switched to a continuous monitoring state at a third moment after the first moment, wherein the time length between the first moment and the third moment is a time length N1.

In this possible example, the duration N1 is determined according to the time interval between the transmission resource of the sideline data and the corresponding PSFCH.

Wherein the transmission resource comprises a psch or PSCCH, and the duration N1 may be determined according to a time interval between the sidelink data and the sidelink feedback channel. Since the transmission resource of the sidelink feedback information is configured for each PSSCH resource pool, the transmitting end (corresponding to the first device) transmits the sidelink data in the resource pool, and can know the transmission resource of the corresponding sidelink feedback in the resource pool, so that when the transmitting end transmits the sidelink data, the transmitting end can know the transmission time of the sidelink feedback channel PSFCH, and therefore, the transmitting end is switched to the continuous monitoring state before the transmission time of the PSFCH.

As can be seen, in this example, by constraining the state switching of the first device by the duration N1, the first device can be changed to the continuous monitoring state before the PSFCH transmission time, so as to ensure the success rate of the sidelink information interaction.

In one possible example, the continuous monitoring state is a first continuous monitoring state, and the first continuous monitoring state is a continuous monitoring state determined according to the first downlink DRX configuration parameter.

In this possible example, the time ranges of the first continuous monitoring state and the second continuous monitoring state are different, the second continuous monitoring state is a continuous monitoring state determined according to a second sidestream DRX configuration parameter, and the first sidestream DRX configuration parameter is different from the second sidestream DRX configuration parameter.

The network device may configure a first sidelink DRX configuration parameter and a second sidelink DRX configuration parameter for the first device, where the first sidelink DRX configuration parameter and the second sidelink DRX configuration parameter may include at least one of the following parameters:

the first DRX parameter: a timer for determining a continuous listening range, e.g., drx-onDurationTimer;

the second DRX parameter: when receiving the PSCCH, the terminal opens a second timer, and before the second timer expires, the terminal is in a continuous monitoring state, for example, drx-inactivytytimer;

a third DRX parameter: for determining the location or time domain offset of the DRX cycle (cycle) and/or starting subframe, e.g., DRX-LongCycleStartOffset;

a fourth DRX parameter: a slot offset, e.g., drx-SlotOffset, for determining a continuous listening range;

a fifth DRX parameter: a timer, e.g., drx-onDurationTimer1, for determining when the terminal goes into the continuous listening state.

The first device may determine the second continuous monitoring according to the second sidelink DRX configuration parameter, for example, the first DRX parameter, where the second continuous monitoring is performed within a time range in which the DRX-on duration timer is activated, and may further be configured with the first sidelink DRX configuration parameter, for example, the fifth DRX parameter, and determine the first continuous monitoring state started after the first device transmits the sidelink data (at the data transmission completion time or the third time) according to the first sidelink DRX configuration parameter.

For example, the network device may configure drx-onDurationTimer1 for determining a first continuous listening range (corresponding to a first continuous listening state), i.e., a continuous listening range of the first device.

As can be seen, in this example, the first device may be configured with differentiated sidestream DRX configuration parameters to flexibly adapt to an application scenario after sidestream data is sent, so as to improve flexibility of use of a DRX mechanism.

In one possible example, the method further comprises: and the first equipment starts a second timer after the data transmission starting time of the sidestream data, and stops the continuous monitoring state when the second timer is over time.

Optionally, the first device is in a continuous listening state before the second timer times out.

Optionally, the duration of the second timer is determined according to a maximum time interval between sidelink transmission resources that can be indicated in the sidelink control information SCI.

In a specific implementation, the first device indicates, by an SCI, time-frequency information of transmission resources, and the SCI of the first device may indicate N _ max transmission resources, where the N _ max transmission resources are used to transmit the same-side row data (including first transmission and retransmission), where N _ max may be configured to be 2 or 3, and when N _ max is 2, the SCI may indicate at most 2 transmission resources; when N _ max is 3, SCI may indicate 3 transmission resources at most, but whether N _ max is 2 or 3, the time interval between the first transmission resource and the last transmission resource is 31 (or 32) slots at most. Therefore, T2-31 or T2-32 is preferred.

For example, as shown in fig. 2C, the UE1 (corresponding to the first device) sends the sidelink data to the UE2 at time h1, and is the first transmission of the sidelink data, after sending the sidelink data (for example, at the time of completing data sending), the UE1 turns to the continuous listening state, and turns on the second timer, where the duration of the second timer is N2 ═ 31 slots; the UE2 sends PSFCH to the UE1 at the time h2, the channel carries NACK information, the UE1 sends retransmission data at the time h3 and restarts a second timer, the UE2 feeds back ACK information to the UE1 at the time h4, the UE1 stops the continuous monitoring state and stops the second timer; or the UE1 receives the ACK and does not stop the continuous listening, does not stop the second timer, and stops the continuous listening when the second timer times out.

Optionally, the duration of the second timer is determined according to a time interval between sideline transmission resources indicated in the SCI sent by the first device.

For example, the transmitting end sends SCI to the receiving end, the SCI indicates 2 transmission resources, the time interval is 10 slots (32 slots at the maximum slot interval indicated by the SCI), and therefore the value of the timer is 10.

As can be seen, in this example, the first device can stop the continuous listening state under the constraint of the second timer to save power, thereby improving the endurance.

Further, the method may further include: and the first equipment starts a second timer at the data transmission starting moment of the sidestream data and stops the continuous monitoring state when the second timer is overtime.

In this possible example, the method further comprises: and the first equipment starts a second timer at the data transmission completion moment of the sidestream data, and stops the continuous monitoring state when the second timer is overtime.

Specifically, after the side row data is sent, that is, after the first device sends the side row data, if the sending time of the side row data is 1 time slot, the first device sends the side row data in the time slot n, and when the sending in the time slot n +1 is completed, the second timer is started.

Therefore, in this example, the first device opens the second timer after the sideline data transmission is completed, so that the problem that the data transmission stability is affected by the second timer when the sideline data transmission is not completed is avoided, and the information interaction stability is improved.

In this possible example, the first device turning on a second timer after the data transmission start time of the sideline data includes: the first device turns on a second timer at a fourth time after the first time.

Optionally, a time duration between the first time and the fourth time is a time duration N2, where the time duration N2 is determined according to a time interval between the transmission resource of the sideline data and the PSFCH corresponding to the transmission resource.

The transmission resource includes a psch or PSCCH, and the duration N2 is determined according to a time interval between the sidelink data and the sidelink feedback channel corresponding thereto. Since the transmission resource of the side-line feedback information is configured for each PSSCH resource pool, the sending end (corresponding to the first device) sends the side-line data in the resource pool, and can know the transmission resource of the side-line feedback corresponding to the resource pool, so that when the sending end sends the side-line data, the sending end can know the transmission time of the side-line feedback channel PSFCH, and therefore, the sending end opens the second timer before the transmission time of the PSFCH to ensure that the continuous monitoring state is not stopped.

As can be seen, in this example, the first device restricts the opening time of the second timer by the duration N2, so as to avoid that the sending end is enabled by the second timer to stop the continuous listening state before the PSFCH transmission time, and improve the stability of information interaction.

Optionally, the fourth time is a time when the first timer times out, or the fourth time is a next time slot when the first timer times out.

As can be seen, in this example, the second timer is opened after the first timer expires, so that the continuous listening state of the first device is synchronously timed from the time when the second timer is opened.

In this possible example, the feedback information of the side-line data is a negative acknowledgement NACK; the method further comprises the following steps: the first device restarts the second timer.

As can be seen, in this example, when the first device receives the NACK feedback information and confirms that the sideline data needs to be retransmitted, restarting the second timer can ensure that the continuous monitoring state is not stopped too early, and ensure the success rate of information interaction.

In this possible example, the method further comprises: and restarting the second timer when the first equipment retransmits the sideline data.

As can be seen, in this example, restarting the second timer when the first device retransmits the sidestream data can ensure that the continuous monitoring state is not stopped too early, and ensure the success rate of information interaction.

In this possible example, the feedback information of the sideline data is a positive acknowledgement ACK; the method further comprises the following steps: the first device stops the second timer.

As can be seen, in this example, the first device does not retransmit the sidestream data after receiving the ACK, and therefore the second timer is stopped to stop the continuous listening state of the local device, which can save power and improve endurance.

In this possible example, the method further comprises: and the first equipment stops the continuous monitoring state when the second timer is stopped and the third timer is over time.

Wherein, the third timer is the first DRX parameter DRX _ onDurationTimer, before the timer expires, the first device is in a continuous monitoring state, when any one of the second timer and the third timer is still in an active state, the first device is required to be in the continuous monitoring state all the time, and only when both timers expire, the continuous monitoring state is ended, and the DRX state is converted to the DRX state.

In this possible example, the method further comprises: and the first equipment stops the continuous monitoring state when the second timer is overtime and the third timer is overtime.

In one possible example, the feedback information of the sideline data is a positive acknowledgement ACK; the method further comprises the following steps: the first device stops the continuous listening state.

As can be seen, in this example, the first device does not retransmit the sidestream data after receiving the ACK, and thus stops the continuous monitoring state, which can save power and improve endurance.

In one possible example, the method further comprises: and the first equipment stops the continuous monitoring state after receiving the feedback information of the sidestream data.

As can be seen, in this example, the first device may stop the continuous monitoring state after receiving the feedback information, which may save power and improve endurance.

In one possible example, the method further comprises: and when receiving the feedback information of the sidestream data, the first equipment opens or restarts a fourth timer, and continuously monitors before the fourth timer is overtime.

Wherein the fourth timer may be a drx-inactivity timer.

As can be seen, in this example, the first device keeps continuously monitoring until the DRX-inactivity timer times out, so as to ensure the accuracy of the DRX mechanism.

In one possible example, the continuous listening range is determined according to a first DRX parameter of the first device.

Wherein the first DRX parameter may be a DRX-onDurationTimer.

In this possible example, the sending, by the first device, the sidestream data to the second device at the first time includes: the first device selects a first transmission resource, and sends the sideline data to the second device through the first transmission resource, wherein the time domain starting position of the first transmission resource is the first moment. Correspondingly, the first time is a time domain starting position of the first transmission resource selected by the first device.

The time domain resource of the first transmission resource may be 1 time slot, 2 time slots, 1 sub-time slot, 1 sub-frame, or the like, which is not limited herein.

As can be seen, in this example, the first device actively selects the selected transmission resource, and ensures that the received feedback information is located within the continuous monitoring range.

In this possible example, the first transmission resource is within the continuous listening range, and a time interval between a time domain start position of the first transmission resource and an end time of the continuous listening range is greater than or equal to a duration N3, where the duration N3 is determined according to a time interval between the first transmission resource and its corresponding PSFCH.

In this possible example, the first device and the second device have the same DRX configuration information.

Wherein the first device and the second device have the same DRX configuration.

For example, a group head terminal in multicast communication coordinates DRX configuration information of all terminals in a group, so that all terminals in the group have the same DRX configuration; or in unicast communication, the transmitting end and the receiving end coordinate the DRX configuration when establishing connection (coordinate the DRX configuration information through SCI information or PC5-RRC signaling), so that the transmitting end and the receiving end have the same DRX configuration.

In this possible example, the continuous listening range is [ T1, T2], where T1 is determined according to the start time of the continuous listening range and T2 is determined according to the end time of the continuous listening range; the second time is within the time range [ T1, T2 ].

T1 and T2 may correspond to the start time and the end time, or to the start positions of the first slot and the last slot of the continuous listening range.

In this possible example, the time domain range of the first transmission resource is [ t1, t2], where the side row feedback information corresponding to the side row data sent by the first device at time t1 is sent or received at time t3, and the side row feedback information corresponding to the side row data sent by the first device at time t2 is sent or received at time t 4. The time t1 corresponds to the first available psch transmission resource in the continuous monitoring range, and the time t4 corresponds to the last available PSFCH transmission resource in the continuous monitoring range.

For example, as shown in fig. 2D, the PSSCHs transmitted by the UE1 within the range of [ t1, t2] are all within the continuous listening range of the UE2 and thus can be received by the UE2, while the PSFCHs transmitted by the UE2 are within the continuous listening range of the UE1 and thus can be received by the UE 1. The PSFCH transmitted by the UE2 at time t3 is the sidelink feedback for the PSSCH transmitted by the UE1 at time t1, and the PSFCH transmitted by the UE2 at time t4 is the sidelink feedback for the PSSCH transmitted by the UE1 at time t 2. t1 corresponds to the first available PSSCH slot in a continuous listening range; t4 corresponds to the last available PSFCH slot in the continuous listening range. Therefore, the transmitting end selects transmission resources within the range of [ t1, t2] for transmitting the PSCCH/PSCCH, and the transmission time of the corresponding PSFCH is within the continuous listening range of the UE 1.

For another example, as shown in fig. 2E, the DRX configurations of the UE1 and the UE2 are different, the continuous listening range of the UE1 is [ Q1, Q2], the UE1 selects the first transmission resource in [ P1, P2], its corresponding PSFCH is in [ Q1, Q2], the time slot s5 is the earliest PSFCH of [ Q1, Q2] (assuming that the transmission duration of the PSFCH is one time slot), the time slot s6 is the latest PSFCH of [ Q1, Q2], where the time P1 corresponds to the earliest transmission time slot of the PSSCH associated with the PSFCH transmitted in the time slot s5, and the time P2 corresponds to the latest transmission time slot of the PSSCH associated with the PSFCH transmitted in the time slot s6, so that the PSSCH transmitted in [ P1, P2] is in the continuous listening range of the UE 1.

For another example, as shown in fig. 2F, the sender selects transmission resources at time S3 (which indicates the starting time of a slot in the continuous listening range) in the continuous listening range, sends sideline data, and according to the resource pool configuration information, the receiver starts to send PSFCH at time S3, for example, S3 is S3+2 slots, and the S3 time selected by the sender needs to make the PSFCH sent at time S3 be in the continuous listening range.

Assuming that the selected time instant for transmitting the PSSCH is S3, T _ gap represents the minimum time interval between the PSSCH and the corresponding PSFCH, and S3, which is used for transmitting the PSFCH, is the first available slot greater than or equal to S3+ T _ gap, as shown in fig. 2G, if S3 is slot2, T _ gap is 2 slots, and each 4 slots include one slot for transmitting the PSFCH, as shown in the corresponding relationship in fig. 2G, the PSSCH transmitted at the start time of S3 slot2 and its corresponding PSFCH is transmitted at the first available slot (i.e., S3 slot7 start time) after slot4, so that, in order to enable the PSFCH to be received by the transmitting end, slot7 should be located in the continuous monitoring range of the transmitting end.

In this possible example, the first transmission resource is within a continuous listening range of the second device.

In this possible example, the first device starts a fifth timer after receiving the sidestream feedback information at the second time, and is in a continuous listening state before the fifth timer expires.

The fifth timer may be, for example, a drx-inactivytytimer. After the first device receives the data (i.e., the feedback information) sent by the second device, the fifth timer is turned on/started to extend the continuous listening range, so as to ensure that more data (or feedback information) sent by the second device can be received.

Wherein, the selected first transmission resource is located in a continuous listening range [ T1, T2], and the continuous listening range may be determined based on the first DRX parameter (i.e., DRX _ onDurationTimer), or may be determined according to a fifth timer (i.e., DRX-inactivtytimer); after receiving the feedback information, a timer is started to prolong the continuous monitoring range, and the transmission resource can be selected in the range.

For example, a first transmission resource is selected to transmit side-line data in the continuous monitoring range determined according to the drx on duration timer, feedback information (e.g., NACK) is received, a fifth timer is started, a second transmission resource (which may be located in the extended continuous monitoring range) is further selected to transmit retransmission data, and if NACK is received, the fifth timer is restarted again, and retransmission resources continue to be selected; and if the ACK is received, stopping the fifth timer or stopping the continuous monitoring state.

As can be seen, in this example, by selecting an appropriate transmission resource, the transmission time of the PSFCH corresponding to the PSSCH that is transmitted on the transmission resource is located within the continuous monitoring range of the transmitting end, so that the PSFCH can be received.

Consistent with the embodiment shown in fig. 2A, please refer to fig. 3, where fig. 3 is a schematic structural diagram of a first device 300 provided in an embodiment of the present application, as shown, the first device 300 includes a processor 310, a memory 320, a communication interface 330, and one or more programs 321, where the one or more programs 321 are stored in the memory 320 and configured to be executed by the processor 310, and the one or more programs 321 include instructions for performing the following operations.

Sending side row data to second equipment at a first moment; and receiving feedback information aiming at the sidestream data from the second equipment at a second moment, wherein the second moment is in a continuous listening range of the first equipment.

It can be seen that, in the embodiment of the present application, the first device sends the sidestream data to the second device at the first time, the first device receives the feedback information for the sidestream data from the second device at the second time, and the second time is within the continuous monitoring range of the first device, so that the sidestream feedback information sent by the receiving end is located within the continuous monitoring range of the sending end, and thus the sending end can correctly receive the feedback information, and the stability and the success rate of data interaction at the receiving and sending ends are improved.

In one possible example, the program further includes instructions for: and the state is changed into a continuous monitoring state.

In one possible example, in terms of the transition to the continuous listening state, the instructions in the program are specifically configured to: and after the sidestream data is sent, the sidestream data is converted into a continuous monitoring state.

In one possible example, in terms of the transition to the continuous listening state, the instructions in the program are specifically configured to: and opening a first timer after the sidestream data is sent, and converting the first equipment into a continuous monitoring state under the condition that the first timer is overtime.

In one possible example, the duration of the first timer is determined according to a time interval between the transmission resource of the sidelink data and the corresponding physical sidelink feedback channel PSFCH.

In one possible example, in terms of the transition to the continuous listening state, the instructions in the program are specifically configured to: and switching to a continuous monitoring state at a third moment after the first moment, wherein the time length between the first moment and the third moment is a time length N1.

In one possible example, the duration N1 is determined according to a time interval between the transmission resource of the sidelink data and its corresponding PSFCH.

In one possible example, the continuous monitoring state is a first continuous monitoring state, and the first continuous monitoring state is a continuous monitoring state determined according to first sidelink DRX configuration parameters.

In one possible example, the time ranges of the first continuous monitoring state and the second continuous monitoring state are different, the second continuous monitoring state is a continuous monitoring state determined according to a second lateral DRX configuration parameter, and the first lateral DRX configuration parameter is different from the second lateral DRX configuration parameter.

In one possible example, the program further includes instructions for: and starting a second timer after the data transmission starting time of the sideline data, and stopping the continuous monitoring state when the second timer is overtime.

In one possible example, the program further includes instructions for: and starting a second timer at the data transmission completion moment of the sideline data, and stopping the continuous monitoring state when the second timer is overtime.

In one possible example, in terms of turning on the second timer after the data transmission start time of the sideline data, the instructions in the program are specifically configured to: turning on a second timer at a fourth time after the first time.

In one possible example, the time duration between the first time and the fourth time is a time duration N2, and the time duration N2 is determined according to the time interval between the transmission resource of the sidelink data and the PSFCH corresponding to the transmission resource.

In one possible example, the fourth time is a time when a first timer expires, or the fourth time is a next time slot when the first timer expires.

In one possible example, the feedback information of the sidelink data is a negative acknowledgement, NACK; the program further includes instructions for: restarting the second timer.

In one possible example, the program further includes instructions for: and restarting the second timer when the lateral data is retransmitted.

In one possible example, the feedback information of the sidelink data is a positive acknowledgement ACK; the program further includes instructions for: stopping the second timer.

In one possible example, the program further includes instructions for: and stopping the continuous monitoring state when the second timer is stopped and the third timer is overtime.

In one possible example, the program further includes instructions for: and stopping the continuous monitoring state when the second timer is overtime and the third timer is overtime.

In one possible example, the duration of the second timer is determined according to the maximum time interval between sidelink transmission resources that can be indicated in the sidelink control information SCI.

In one possible example, the duration of the second timer is determined according to a time interval between sidelink transmission resources indicated in the SCI transmitted by the first device.

In one possible example, the feedback information of the sidelink data is a positive acknowledgement ACK; the program further includes instructions for: the continuous listening state is stopped.

In one possible example, the program further includes instructions for: and stopping the continuous listening state after receiving the feedback information of the sidestream data.

In one possible example, the program further includes instructions for: and opening or restarting a fourth timer when the feedback information of the sidestream data is received, and continuously monitoring before the fourth timer is overtime.

In one possible example, in the aspect of sending the collateral data to the second device at the first time, the instructions in the program are specifically configured to: selecting a first transmission resource, and sending the sideline data to the second device through the first transmission resource, wherein the time domain starting position of the first transmission resource is the first moment.

In one possible example, the first transmission resource is within the continuous listening range, and a time interval between a time domain start position of the first transmission resource and an end time of the continuous listening range is greater than or equal to a duration N3, wherein the duration N3 is determined according to a time interval between the first transmission resource and its corresponding PSFCH.

In one possible example, the first device and the second device have the same DRX configuration information.

In one possible example, the continuous listening range is [ T1, T2], where T1 is determined according to the start time of the continuous listening range and T2 is determined according to the end time of the continuous listening range; the second time is within the time range [ T1, T2 ].

In one possible example, the time domain range of the first transmission resource is [ T1, T2], where the side row feedback information corresponding to the side row data sent by the first device at time T1 is sent or received at time T1, and the side row feedback information corresponding to the side row data sent by the first device at time T2 is sent or received at time T2.

In one possible example, the first transmission resource is within a continuous listening range of the second device.

In one possible example, the first device starts a fifth timer after receiving the sidestream feedback information at the second time, and is in a continuous listening state before the fifth timer expires.

In one possible example, the sideline data comprises sideline data transmitted for the first time or retransmitted.

Referring to fig. 4, fig. 4 is a schematic structural diagram of a second device 400 according to an embodiment of the present disclosure, and as shown in the drawing, the second device 400 includes a processor 410, a memory 420, a communication interface 430, and one or more programs 421, where the one or more programs 421 are stored in the memory 420 and configured to be executed by the processor 410, and the one or more programs 421 include instructions for performing the following operations.

Receiving sideline data sent by first equipment at a first time; and sending feedback information aiming at the sidestream data to the first equipment, wherein the feedback information is received by the first equipment at a second moment, and the second moment is within a continuous monitoring range of the first equipment.

In one possible example, the first device changes to a continuous listening state after sending the sidestream data.

In one possible example, the continuous monitoring state is a first continuous monitoring state, and the first continuous monitoring state is a continuous monitoring state determined according to a first sidelink DRX configuration parameter.

In one possible example, the first time is a time domain starting position of the first transmission resource selected by the first device.

In one possible example, the time domain range of the first transmission resource is [ T1, T2], where the side row feedback information corresponding to the side row data transmitted by the first device at time T1 is transmitted or received at time T1, and the side row feedback information corresponding to the side row data transmitted by the first device at time T2 is transmitted or received at time T2.

The above-mentioned scheme of the embodiment of the present application is introduced mainly from the perspective of interaction between network elements. It is understood that the terminal includes corresponding hardware structures and/or software modules for performing the respective functions in order to implement the above-described functions. Those of skill in the art would readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the terminal may be divided into the functional units according to the method example, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The integrated unit may be implemented in the form of hardware, or may be implemented in the form of a software program module. It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

In case of using an integrated unit, fig. 5 shows a block diagram of a possible functional unit of the DRX-based sidestream feedback apparatus involved in the above-described embodiments. The DRX-based sidestream feedback apparatus 500 is applied to a first device, and specifically includes: a processing unit 502 and a communication unit 503. The processing unit 502 is configured to control and manage actions of the first device, for example, the processing unit 502 is configured to support the terminal to perform relevant processes of the technology described herein. The communication unit 503 is configured to support communication between the first device and other devices. The first device may further comprise a storage unit 501 for storing program codes and data of the first device.

The Processing Unit 502 may be a Processor or a controller, such as a Central Processing Unit (CPU), 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 device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs, and microprocessors, among others. The communication unit 503 may be a communication interface, a transceiver, a transceiving circuit, etc., and the storage unit 501 may be a memory. When the processing unit 502 is a processor, the communication unit 503 is a communication interface, and the storage unit 501 is a memory, the terminal according to the embodiment of the present application may be the first device shown in fig. 3.

In a specific implementation, the processing unit 502 is configured to perform any one of the steps performed by the first device in the above method embodiments, and when performing data transmission such as sending, the communication unit 503 is optionally invoked to complete the corresponding operation. The details will be described below.

The processing unit 502 is configured to send sidestream data to a second device at a first time through the communication unit; and receiving, by the communication unit, feedback information for the sidestream data from the second device at a second time, the second time being within a continuous listening range of the first device.

In one possible example, the processing unit is further to: and the state is changed into a continuous monitoring state.

In one possible example, in the aspect of the transition to the continuous monitoring state, the processing unit is specifically configured to: and after the sidestream data is sent, the sidestream data is converted into a continuous monitoring state.

In a possible example, in terms of the transition to the continuous listening state, the processing unit is specifically configured to: and opening a first timer after the sidestream data is sent, and switching to a continuous monitoring state under the condition that the first timer is overtime.

In one possible example, in the aspect of the transition to the continuous monitoring state, the processing unit is specifically configured to: and switching to a continuous monitoring state at a third moment after the first moment, wherein the time length between the first moment and the third moment is a time length N1.

In one possible example, the processing unit is further to: and starting a second timer after the data transmission starting time of the sideline data, and stopping the continuous monitoring state when the second timer is overtime.

In one possible example, the processing unit is further to: and starting a second timer at the data transmission completion moment of the sideline data, and stopping the continuous monitoring state when the second timer is overtime.

In one possible example, in terms of turning on the second timer after the data transmission start time of the sideline data, the processing unit is specifically configured to: turning on a second timer at a fourth time after the first time.

In one possible example, the feedback information of the sidelink data is a negative acknowledgement NACK; the processing unit is further to: restarting the second timer.

In one possible example, the processing unit is further to: and restarting the second timer when the lateral data is retransmitted.

In one possible example, the feedback information of the sidelink data is a positive acknowledgement ACK; the processing unit is further to: stopping the second timer.

In one possible example, the processing unit is further to: and stopping the continuous monitoring state when the second timer is stopped and the third timer is overtime.

In one possible example, the processing unit is further to: and stopping the continuous monitoring state when the second timer is overtime and the third timer is overtime.

In one possible example, the feedback information of the sidelink data is a positive acknowledgement ACK; the processing unit is further to: the continuous listening state is stopped.

In one possible example, the continuous listening state is stopped after receiving feedback information of the sidestream data.

In one possible example, a fourth timer is turned on or restarted when feedback information of the sidestream data is received, and continuous listening is performed before the fourth timer times out.

In one possible example, in the aspect of sending, by the communication unit, the sidelink data to the second device at the first time, the processing unit is specifically configured to: selecting a first transmission resource, and sending the sideline data to the second device through the communication unit through the first transmission resource, wherein the time domain starting position of the first transmission resource is the first moment.

In one possible example, the first transmission resource is within the continuous listening range, and a time interval between a time domain start position of the first transmission resource and an end time of the continuous listening range is greater than or equal to duration N3, wherein the duration N3 is determined according to a time interval between the first transmission resource and its corresponding PSFCH.

In case of using an integrated unit, fig. 6 shows a block diagram of a possible functional unit of the DRX-based sidestream feedback apparatus involved in the above-described embodiments. The DRX-based sidestream feedback apparatus 600 is applied to a second device, which includes: a processing unit 602 and a communication unit 603. Processing unit 602 is configured to control and manage actions of the second device, e.g., processing unit 502 is configured to support a network device to perform processes associated with the techniques described herein. The communication unit 603 is configured to support communication between the second device and other devices. The second device may further comprise a storage unit 601 for storing program codes and data of the second device.

The Processing Unit 602 may be a Processor or a controller, such as a Central Processing Unit (CPU), 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 device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs, and microprocessors, among others. The communication unit 603 may be a communication interface, a transceiver, a transceiving circuit, etc., and the storage unit 601 may be a memory. When the processing unit 602 is a processor, the communication unit 603 is a communication interface, and the storage unit 601 is a memory, the terminal according to the embodiment of the present application may be the second device shown in fig. 4.

The processing unit 602 is configured to receive, through the communication unit, sidestream data sent by a first device at a first time; and sending feedback information aiming at the sidestream data to the first equipment through the communication unit, wherein the feedback information is received by the first equipment at a second moment, and the second moment is in a continuous monitoring range of the first equipment.

It can be understood that, since the method embodiment and the apparatus embodiment are different presentation forms of the same technical concept, the content of the method embodiment portion in the present application should be synchronously adapted to the apparatus embodiment portion, and is not described herein again.

The embodiment of the present application further provides a chip, where the chip includes a processor, configured to call and run a computer program from a memory, so that a device in which the chip is installed performs some or all of the steps described in the terminal in the above method embodiment.

The embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program makes a computer perform some or all of the steps described in the terminal in the above method embodiment.

The embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program causes a computer to perform some or all of the steps described in the above method embodiment for a network-side device.

Embodiments of the present application further provide a computer program product, where the computer program product includes a computer program, and the computer program is operable to cause a computer to perform some or all of the steps described in the terminal in the above method embodiments. The computer program product may be a software installation package.

The steps of a method or algorithm described in the embodiments of the present application may be implemented in hardware, or may be implemented by a processor executing software instructions. The software instructions may be comprised of corresponding software modules that may be stored in Random Access Memory (RAM), flash Memory, Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), registers, a hard disk, a removable disk, a compact disc Read Only Memory (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. Additionally, the ASIC may reside in an access network device, a target network device, or a core network device. Of course, the processor and the storage medium may reside as discrete components in an access network device, a target network device, or a core network device.

Those skilled in the art will appreciate that in one or more of the examples described above, the functionality described in the embodiments of the present application may be implemented, in whole or in part, by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that includes one or more available media. The usable medium may be a magnetic medium (e.g., a floppy Disk, a hard Disk, a magnetic tape), an optical medium (e.g., a Digital Video Disc (DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.

The above-mentioned embodiments, objects, technical solutions and advantages of the embodiments of the present application are further described in detail, it should be understood that the above-mentioned embodiments are only specific embodiments of the present application, and are not intended to limit the scope of the embodiments of the present application, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the embodiments of the present application should be included in the scope of the embodiments of the present application.

Claims

A sidelink feedback method based on Discontinuous Reception (DRX) is characterized by comprising the following steps:

the method comprises the steps that a first device sends side row data to a second device at a first moment;

and the first equipment receives feedback information aiming at the sidestream data from the second equipment at a second moment, wherein the second moment is in a continuous monitoring range of the first equipment.
The method of claim 1, further comprising:

and the first equipment is converted into a continuous monitoring state.
The method of claim 2, wherein transitioning the first device to the continuous listening state comprises:

and the first equipment is converted into a continuous monitoring state after the sidestream data is sent.
The method of claim 2, wherein transitioning the first device to the continuous listening state comprises:

and the first equipment opens a first timer after sending the sidestream data, and the first equipment is switched to a continuous monitoring state under the condition that the first timer is overtime.
The method of claim 4, wherein the duration of the first timer is determined according to a time interval between the transmission resource of the sidelink data and the corresponding physical sidelink feedback channel PSFCH.
The method of claim 2, wherein transitioning the first device to the continuous listening state comprises:

and the first equipment is switched to a continuous monitoring state at a third moment after the first moment, wherein the time length between the first moment and the third moment is a time length N1.
The method according to claim 6, wherein the duration N1 is determined according to a time interval between the transmission resource of the sidestream data and its corresponding PSFCH.
The method according to any of claims 2-7, wherein the continuous listening state is a first continuous listening state, and wherein the first continuous listening state is a continuous listening state determined according to first lateral DRX configuration parameters.
The method of claim 8, wherein the first continuous listening state and the second continuous listening state have different time ranges, wherein the second continuous listening state is a continuous listening state determined according to a second lateral DRX configuration parameter, and wherein the first lateral DRX configuration parameter is different from the second lateral DRX configuration parameter.
The method according to any one of claims 2-9, further comprising:

and the first equipment starts a second timer after the data transmission starting time of the sidestream data, and stops the continuous monitoring state when the second timer is over time.
The method of claims 2-9, further comprising:

and the first equipment starts a second timer at the moment of finishing the data transmission of the sidestream data, and stops the continuous monitoring state when the second timer is overtime.
The method of claim 10, wherein the first device starts a second timer after the start time of the data transmission of the sidelink data, comprising:

the first device turns on a second timer at a fourth time after the first time.
The method of claim 12, wherein a time duration between the first time and the fourth time is a time duration N2, and wherein the time duration N2 is determined according to a time interval between transmission resources of the sidelink data and its corresponding PSFCH.
The method of claim 12, wherein the fourth time is a time when a first timer expires or a next time slot when the first timer expires.
The method according to any of the claims 10-14, wherein the feedback information of the sidestream data is a negative acknowledgement, NACK; the method further comprises the following steps:

the first device restarts the second timer.
The method according to any one of claims 10-14, further comprising:

and restarting the second timer when the first equipment retransmits the sideline data.
The method according to any of claims 10-14, wherein the feedback information of the sidestream data is a positive acknowledgement ACK; the method further comprises the following steps:

the first device stops the second timer.
The method according to any one of claims 10-14, further comprising:

and the first equipment stops the continuous monitoring state when the second timer is stopped and the third timer is over time.
The method according to any one of claims 10-14, further comprising:

and when the second timer is overtime and the third timer is overtime, the first equipment stops the continuous monitoring state.
The method according to any of claims 10-19, wherein the duration of said second timer is determined according to the maximum time interval between sidelink transmission resources that can be indicated in the sidelink control information SCI.
The method of any of claims 10-19, wherein the duration of the second timer is determined according to a time interval between sidelink transmission resources indicated in the SCI sent by the first device.
The method according to any of claims 2-21, wherein the feedback information of the sidestream data is a positive acknowledgement ACK; the method further comprises the following steps:

the first device stops the continuous listening state.
The method according to any one of claims 2-21, further comprising:

and the first equipment stops the continuous monitoring state after receiving the feedback information of the sidestream data.
The method according to any one of claims 2-21, further comprising:

and when receiving the feedback information of the sidestream data, the first equipment opens or restarts a fourth timer, and continuously monitors before the fourth timer is overtime.
The method of claim 1, wherein the continuous listening range is determined according to a first DRX parameter of the first device.
The method of claim 25, wherein the first device sends sidestream data to the second device at the first time, comprising:

the first device selects a first transmission resource, and sends the sideline data to the second device through the first transmission resource, wherein the time domain starting position of the first transmission resource is the first moment.
The method of claim 26, wherein the first transmission resource is within the continuous listening range, and wherein a time interval between a time domain start position of the first transmission resource and an end time of the continuous listening range is greater than or equal to a duration N3, wherein the duration N3 is determined according to a time interval between the first transmission resource and its corresponding PSFCH.
The method of claim 27, wherein the first device and the second device have the same DRX configuration information.
The method of claim 26, wherein the continuous listening range is [ T1, T2], wherein T1 is determined according to the start time of the continuous listening range, and wherein T2 is determined according to the end time of the continuous listening range; the second time is within the time range [ T1, T2 ].
The method of claim 29, wherein the first transmission resource has a time domain range of [ T1, T2], and wherein the side row feedback information corresponding to the side row data transmitted by the first device at time T1 is transmitted or received at time T1, and the side row feedback information corresponding to the side row data transmitted by the first device at time T2 is transmitted or received at time T2.
The method according to claim 29 or 30, wherein the first transmission resource is within a continuous listening range of the second device.
The method according to any of claims 25-31, wherein the first device starts a fifth timer after receiving the sidelink feedback information at the second time, and is in a continuous listening state before the fifth timer expires.
The method according to any of claims 1-32, wherein the sideline data comprises sideline data transmitted for the first time or retransmitted.
A DRX-based sidestream feedback method, comprising:

the second equipment receives the sideline data sent by the first equipment at the first time;

and the second equipment sends feedback information aiming at the sidestream data to the first equipment, wherein the feedback information is received by the first equipment at a second moment, and the second moment is within the continuous monitoring range of the first equipment.
The method of claim 34, wherein the first device transitions to a continuous listening state after sending the sidestream data.
The method of claim 35, wherein the continuous listening state is a first continuous listening state, and wherein the first continuous listening state is a continuous listening state determined according to first lateral DRX configuration parameters.
The method of claim 36, wherein the first continuous listening state and the second continuous listening state have different time ranges, wherein the second continuous listening state is a continuous listening state determined according to a second lateral DRX configuration parameter, and wherein the first lateral DRX configuration parameter is different from the second lateral DRX configuration parameter.
The method of claim 34, wherein the continuous listening range is determined according to a first DRX parameter of the first device.
The method of claim 38, wherein the first time is a time domain starting position of the first transmission resource selected by the first device.
The method of claim 39, wherein the first transmission resource is within the continuous listening range, and wherein a time interval between a time domain start position of the first transmission resource and an end time of the continuous listening range is greater than or equal to a time duration N3, wherein the time duration N3 is determined according to a time interval between the first transmission resource and its corresponding PSFCH.
The method of claim 40, wherein the first device and the second device have the same DRX configuration information.
The method of claim 39, wherein the continuous listening range is [ T1, T2], wherein T1 is determined according to the start time of the continuous listening range, and T2 is determined according to the end time of the continuous listening range; the second time is within the time range [ T1, T2 ].
The method of claim 42, wherein the first transmission resource has a time domain range of [ T1, T2], and wherein the side row feedback information corresponding to the side row data transmitted by the first device at time T1 is transmitted or received at time T1, and the side row feedback information corresponding to the side row data transmitted by the first device at time T2 is transmitted or received at time T2.
The method of claim 42 or 43, wherein the first transmission resource is within a continuous listening range of the second device.
The method of any of claims 34-44, wherein the sideline data comprises sideline data transmitted for the first time or retransmitted.
A DRX-based sidestream feedback apparatus, applied to a first device, comprising a processing unit and a communication unit, wherein,

the processing unit is used for sending the collateral data to the second equipment at the first moment through the communication unit; and receiving, by the communication unit, feedback information for the sidestream data from the second device at a second time, the second time being within a continuous listening range of the first device.
The apparatus as claimed in claim 46, wherein said processing unit is further configured to: and the state is changed into a continuous monitoring state.
The apparatus of claim 47, wherein in connection with the transition to the continuous listening state, the processing unit is specifically configured to: and after the sidestream data is sent, the sidestream data is converted into a continuous monitoring state.
The apparatus of claim 47, wherein in connection with the transition to the continuous listening state, the processing unit is specifically configured to: and opening a first timer after the sidestream data is sent, and switching to a continuous monitoring state under the condition that the first timer is overtime.
The apparatus of claim 49, wherein the duration of the first timer is determined according to a time interval between the transmission resource of the sidelink data and the corresponding Physical Sidelink Feedback Channel (PSFCH).
The apparatus of claim 47, wherein in connection with the transition to the continuous listening state, the processing unit is specifically configured to: and switching to a continuous monitoring state at a third moment after the first moment, wherein the time length between the first moment and the third moment is a time length N1.
The apparatus according to claim 51, wherein the duration N1 is determined according to a time interval between a transmission resource of the sidestream data and its corresponding PSFCH.
The apparatus according to any of claims 46-52, wherein the continuous listening state is a first continuous listening state, and wherein the first continuous listening state is a continuous listening state determined according to first lateral DRX configuration parameters.
The apparatus of claim 53, wherein the first continuous listening state and the second continuous listening state have different time ranges, wherein the second continuous listening state is a continuous listening state determined according to a second lateral DRX configuration parameter, and wherein the first lateral DRX configuration parameter is different from the second lateral DRX configuration parameter.
The apparatus according to any one of claims 47-54, wherein the processing unit is further configured to: and starting a second timer after the data transmission starting time of the sideline data, and stopping the continuous monitoring state when the second timer is overtime.
The apparatus according to any one of claims 47-54, wherein the processing unit is further configured to: and starting a second timer at the data transmission completion moment of the sideline data, and stopping the continuous monitoring state when the second timer is overtime.
The apparatus according to claim 54, wherein, in turning on a second timer after the data transmission start time of the sideline data, the processing unit is specifically configured to: turning on a second timer at a fourth time after the first time.
The apparatus of claim 57, wherein a time duration between the first time and the fourth time is a time duration N2, and wherein the time duration N2 is determined according to a time interval between transmission resources of the sidelink data and its corresponding PSFCH.
The apparatus of claim 57, wherein the fourth time is a time when a first timer expires or a next time slot when the first timer expires.
The apparatus according to any of the claims 55-59, wherein the feedback information of the sidelink data is a negative acknowledgement, NACK; the processing unit is further to: restarting the second timer.
The apparatus according to any one of claims 55-59, wherein the processing unit is further configured to: and restarting the second timer when the lateral data is retransmitted.
The apparatus according to any of claims 55-59, wherein the feedback information of the sidelining data is a positive Acknowledgement (ACK); the processing unit is further to: stopping the second timer.
The apparatus according to any one of claims 55-59, wherein the processing unit is further configured to: and when the second timer is stopped and the third timer is overtime, stopping the continuous monitoring state.
The apparatus according to any one of claims 55-59, wherein the processing unit is further configured to: and stopping the continuous monitoring state when the second timer is overtime and the third timer is overtime.
The apparatus of any of claims 55-64, wherein the duration of the second timer is determined according to a maximum time interval between sidelink transmission resources that can be indicated in the sidelink control information SCI.
The apparatus of any of claims 55-64, wherein the duration of the second timer is determined according to the time interval between sidelink transmission resources indicated in the SCI sent by the first device.
The apparatus according to any of claims 47-66, wherein the feedback information of the sidelining data is a positive Acknowledgement (ACK); the processing unit is further to: the continuous listening state is stopped.
The apparatus according to any of claims 47-66, wherein the continuous listening state is stopped after receiving feedback information for the sidestream data.
The apparatus according to any of claims 47-66, wherein upon receiving feedback information of the sidestream data, a fourth timer is turned on or restarted, and wherein continuous listening is performed before the fourth timer times out.
The apparatus of claim 46, wherein the continuous listening range is determined according to a first DRX parameter of the first device.
The apparatus according to claim 70, wherein, in said sending, by the communication unit, the sidelink data to the second device at the first time, the processing unit is specifically configured to: selecting a first transmission resource, and sending the sideline data to the second device through the communication unit through the first transmission resource, wherein a time domain starting position of the first transmission resource is the first moment.
The apparatus of claim 71, wherein the first transmission resource is within the continuous listening range, and wherein a time interval between a time domain start position of the first transmission resource and an end time of the continuous listening range is greater than or equal to a time duration N3, wherein the time duration N3 is determined according to a time interval between the first transmission resource and its corresponding PSFCH.
The apparatus of claim 72, wherein the first device and the second device have the same DRX configuration information.
The apparatus of claim 71, wherein the continuous listening range is [ T1, T2], wherein T1 is determined according to the start time of the continuous listening range, and T2 is determined according to the end time of the continuous listening range; the second time is within the time range [ T1, T2 ].
The apparatus of claim 74, wherein the first transmission resource has a time domain range of [ T1, T2], and wherein side row feedback information corresponding to side row data transmitted by the first device at time T1 is transmitted or received at time T1, and side row feedback information corresponding to side row data transmitted by the first device at time T2 is transmitted or received at time T2.
The apparatus of claim 74 or 75, wherein the first transmission resource is within a continuous listening range of the second device.
The apparatus of any of claims 70-76, wherein the first device starts a fifth timer after receiving the sidelink feedback information at the second time and is in a continuous listening state before the fifth timer expires.
The apparatus according to any of claims 46-77, wherein the sidelink data comprises sidelink data for a first transmission or a retransmission.
A DRX-based sidestream feedback apparatus, applied to a second device, comprising a processing unit and a communication unit, wherein,

the processing unit is used for receiving the sideline data sent by the first equipment at the first moment through the communication unit; and sending feedback information aiming at the sidestream data to the first equipment through the communication unit, wherein the feedback information is received by the first equipment at a second moment, and the second moment is in a continuous monitoring range of the first equipment.
The apparatus of claim 79, wherein the first device transitions to a listen-on-continuous state after sending the sidestream data.
The apparatus of claim 80, wherein the continuous listening state is a first continuous listening state, and wherein the first continuous listening state is a continuous listening state determined according to first lateral DRX configuration parameters.
The apparatus of claim 81, wherein the first continuous listening state and the second continuous listening state have different time ranges, wherein the second continuous listening state is a continuous listening state determined according to a second lateral DRX configuration parameter, and wherein the first lateral DRX configuration parameter is different from the second lateral DRX configuration parameter.
The apparatus of claim 79, wherein the continuous listening range is determined according to a first DRX parameter of the first device.
The apparatus of claim 83, wherein the first time is a time domain starting position of the first transmission resource selected by the first device.
The apparatus of claim 84, wherein the first transmission resource is within the continuous listening range, and wherein a time interval between a time domain start position of the first transmission resource and an end time of the continuous listening range is greater than or equal to a time duration N3, wherein the time duration N3 is determined according to a time interval between the first transmission resource and its corresponding PSFCH.
The apparatus of claim 85, wherein the first device and the second device have the same DRX configuration information.
The apparatus of claim 84, wherein the continuous listening range is [ T1, T2], wherein T1 is determined according to the start time of the continuous listening range, and wherein T2 is determined according to the end time of the continuous listening range; the second time is within the time range [ T1, T2 ].
The apparatus of claim 87, wherein the first transmission resource has a time domain range of [ T1, T2], and wherein side row feedback information corresponding to side row data transmitted by the first device at time T1 is transmitted or received at time T1, and side row feedback information corresponding to side row data transmitted by the first device at time T2 is transmitted or received at time T2.
The apparatus of claim 87 or 88, wherein the first transmission resource is within a continuous listening range of the second device.
The apparatus according to any of claims 79-89, wherein the sideline data comprises sideline data for a first transmission or a retransmission.
A first device comprising a processor, memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in the method of any of claims 1-33.
A second device comprising a processor, memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs including instructions for performing the steps in the method of any of claims 34-45.
A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any of claims 1-33 or 34-45.
A computer-readable storage medium, characterized in that it stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method according to any one of claims 1-33 or 34-45.
A computer program for causing a computer to perform the method of any one of claims 1-33 or 34-45.