WO2023151090A1 - 一种定时器启动方法/装置/设备及存储介质 - Google Patents

一种定时器启动方法/装置/设备及存储介质 Download PDF

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Publication number
WO2023151090A1
WO2023151090A1 PCT/CN2022/076241 CN2022076241W WO2023151090A1 WO 2023151090 A1 WO2023151090 A1 WO 2023151090A1 CN 2022076241 W CN2022076241 W CN 2022076241W WO 2023151090 A1 WO2023151090 A1 WO 2023151090A1
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WIPO (PCT)
Prior art keywords
timer
retransmission timer
information
terminal device
data
Prior art date
Application number
PCT/CN2022/076241
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English (en)
French (fr)
Inventor
杨星
Original Assignee
北京小米移动软件有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN202280000303.6A priority Critical patent/CN114731240A/zh
Priority to PCT/CN2022/076241 priority patent/WO2023151090A1/zh
Publication of WO2023151090A1 publication Critical patent/WO2023151090A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1887—Scheduling and prioritising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

Definitions

  • the present disclosure relates to the technical field of communications, and in particular to a timer starting method/apparatus/equipment and a storage medium.
  • a SL (Sidelink, side link) communication mode is introduced to realize direct communication between terminal devices.
  • the second terminal device such as the sending terminal device
  • the first terminal device will give feedback or not, and if the first terminal If the device fails to receive the data and/or information, it usually needs to start a retransmission timer to retransmit the data and/or information.
  • the timer starting method/apparatus/equipment and storage medium proposed in the present disclosure provide a timer starting method for the situation that the first terminal device does not perform feedback.
  • the timer starting method proposed by the embodiment is applied to the first terminal device, including:
  • the timer starting method proposed in another embodiment of the present disclosure is applied to the second terminal device, including:
  • the timer starting device proposed by the embodiment includes:
  • a receiving module configured to receive data and/or information sent by the second terminal device through the SL;
  • a processing module configured to determine whether to feed back the data and/or information; and to start a first retransmission timer when determining not to feed back the data and/or information;
  • the receiving module is further configured to monitor a physical sidelink control channel PSCCH during the running of the first retransmission timer.
  • the timer starting device proposed by the embodiment includes:
  • a sending module configured to send data and/or information to the first terminal device through SL;
  • a processing module configured to determine whether the first terminal device feeds back the received data and/or information; and to determine whether the first terminal device does not feed back the received data and/or information, and to start the first retransmission timer;
  • the sending module is further configured to send data and/or information to the first terminal device through the PSCCH during the running of the first retransmission timer.
  • an embodiment provides a communication device, the device includes a processor and a memory, a computer program is stored in the memory, and the processor executes the computer program stored in the memory, so that the The device executes the method provided in the embodiment of the foregoing aspect.
  • an embodiment provides a communication device, the device includes a processor and a memory, a computer program is stored in the memory, and the processor executes the computer program stored in the memory, so that the The device executes the method provided in the embodiment of the foregoing aspect.
  • a communication device provided by an embodiment of another aspect of the present disclosure includes: a processor and an interface circuit;
  • the interface circuit is used to receive code instructions and transmit them to the processor
  • the processor is configured to run the code instructions to execute the method provided in one embodiment.
  • a communication device provided by an embodiment of another aspect of the present disclosure includes: a processor and an interface circuit;
  • the interface circuit is used to receive code instructions and transmit them to the processor
  • the processor is configured to run the code instructions to execute the method provided in one embodiment.
  • the computer-readable storage medium provided by another embodiment of the present disclosure is used to store instructions, and when the instructions are executed, the method provided by the first embodiment is implemented.
  • the computer-readable storage medium provided by another embodiment of the present disclosure is used to store instructions, and when the instructions are executed, the method provided by the first embodiment is implemented.
  • the first terminal device will receive the data and/or information sent by the second terminal device through the SL, and determine and/or whether the information is fed back, and when it is determined not to feed back the data and/or information, start the first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • FIG. 1 is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure
  • FIG. 2 is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • FIG. 3 is a schematic flowchart of a method for starting a timer provided in another embodiment of the present disclosure
  • Fig. 4a is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 4b is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 5a is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 5b is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 6a is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 6b is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 7a is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 7b is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 8a is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 8b is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 9a is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • FIG. 9b is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 10a is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 10b is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 11a is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 11b is a schematic flowchart of a method for starting a timer provided by another embodiment of the present disclosure.
  • Fig. 12a is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 12b is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • FIG. 13 is a schematic flowchart of a method for starting a timer provided by another embodiment of the present disclosure.
  • FIG. 14 is a schematic flowchart of a method for starting a timer provided by another embodiment of the present disclosure.
  • FIG. 15 is a schematic flowchart of a method for starting a timer provided by another embodiment of the present disclosure.
  • Fig. 16a is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 16b is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 17a is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 17b is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 18a is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 18b is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 19a is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 19b is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 20a is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • FIG. 20b is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 21a is a schematic flowchart of a method for starting a timer provided by another embodiment of the present disclosure.
  • Fig. 21b is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 22a is a schematic flowchart of a method for starting a timer provided by another embodiment of the present disclosure.
  • Fig. 22b is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 23a is a schematic flowchart of a method for starting a timer provided by another embodiment of the present disclosure.
  • Fig. 23b is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 24a is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 24b is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • FIG. 25 is a schematic flowchart of a timer starting method provided by another embodiment of the present disclosure.
  • Fig. 26 is a schematic structural diagram of a timer starting device provided by an embodiment of the present disclosure.
  • Fig. 27 is a schematic structural diagram of a timer starting device provided by another embodiment of the present disclosure.
  • Fig. 28 is a block diagram of a user equipment provided by an embodiment of the present disclosure.
  • Fig. 29 is a block diagram of a network side device provided by an embodiment of the present disclosure.
  • first, second, third, etc. may use the terms first, second, third, etc. to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the embodiments of the present disclosure, first information may also be called second information, and similarly, second information may also be called first information.
  • first information may also be called second information
  • second information may also be called first information.
  • the words "if” and "if” as used herein may be interpreted as “at” or "when” or "in response to a determination.”
  • FIG. 1 is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a first terminal device. As shown in FIG. 1 , the method for starting a timer may include the following steps:
  • Step 101 Receive data and/or information sent by a second terminal device through SL.
  • a terminal device may be a device that provides voice and/or data connectivity to a user.
  • Terminal devices can communicate with one or more core networks via RAN (Radio Access Network, wireless access network).
  • Terminal devices can be IoT terminals, such as sensor devices, mobile phones (or called "cellular" phones) and
  • the computer of the IoT terminal for example, may be a fixed, portable, pocket, hand-held, built-in computer or vehicle-mounted device.
  • station Station, STA
  • subscriber unit subscriber unit
  • subscriber station subscriber station
  • mobile station mobile station
  • remote station remote station
  • access point remote terminal
  • remote terminal access terminal, user terminal, or user agent.
  • the terminal device may also be a device of an unmanned aerial vehicle.
  • the terminal device may also be a vehicle-mounted device, for example, it may be a trip computer with a wireless communication function, or a wireless terminal connected externally to the trip computer.
  • the terminal device may also be a roadside device, for example, it may be a street lamp, a signal lamp, or other roadside devices with a wireless communication function.
  • the first terminal device may be a receiving terminal device
  • the second terminal device may be a sending terminal device.
  • the second terminal device may send data and/or information to the first terminal device in any form of multicast, unicast, or broadcast.
  • the above data and/or information may be sent through a PSSCH (Physical Sidelink Shared Channel, Physical Sidelink Shared Channel) in an SL channel.
  • PSSCH Physical Sidelink Shared Channel, Physical Sidelink Shared Channel
  • the sending of data and/or information by the above-mentioned second terminal device may specifically be a new transmission of the data and/or information (new transmission), wherein the new The transmission specifically refers to the initial transmission, that is, specifically refers to: the initial transmission of a certain data and/or information.
  • Step 102 Determine whether to feed back data and/or information.
  • the above determination of whether to feed back data and/or information may include:
  • Step a Receive SCI (sidelink control information, sidelink control information) sent by the second terminal device, where the SCI may be used to indicate whether the first terminal device needs to give feedback on the received data and/or information.
  • SCI sidelink control information, sidelink control information
  • the above SCI may be sent through a PSCCH (Physical Sidelink Control Channel, Physical Sidelink Control Channel) in an SL channel.
  • PSCCH Physical Sidelink Control Channel, Physical Sidelink Control Channel
  • Step b Determine whether to feed back the data and/or information based on the indication of the SCI.
  • the above determination of whether to feed back data and/or information may also include:
  • Whether to feed back the data and/or information is determined according to whether the resource pool corresponding to the received data and/or information is configured with feedback resources. Wherein, if the resource pool is configured with feedback resources, it is determined to perform feedback on the received data and/or information; if the resource pool is not configured with feedback resources, it is determined to perform feedback on the received data and/or information.
  • Step 103 Start a first retransmission timer when it is determined not to feed back data and/or information.
  • the terminal device after receiving the data and/or information, the terminal device also needs to decode the received data and/or information If the decoding is successful, the data and/or information is considered to be successfully received, and if the decoding fails, the data and/or information is considered to have failed to be received. At this time, the first retransmission timer needs to be started to retransmit the data and/or information.
  • the embodiment of the present disclosure is mainly aimed at the situation that "the first terminal device does not give feedback on the received newly transmitted data and/or information", and provides a specific method for starting a first retransmission timer, wherein, A specific method for starting the first retransmission timer will be described in detail in subsequent embodiments.
  • starting a retransmission timer may include the method shown in any of the subsequent Figures 2-12.
  • the method may be configured to the first terminal device by the base station or the second terminal device, and at the same time, the base station or the second terminal device may also configure the first terminal device whether each method is applied to feedback or applies without feedback.
  • the first terminal device can determine the method for starting the retransmission timer based on the configuration of the base station or the second terminal device.
  • Step 104 monitor the PSCCH during the running of the first retransmission timer.
  • the data and/or information retransmitted by the second terminal device can be received, and the retransmission success rate can be ensured.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • FIG. 2 is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a first terminal device. As shown in FIG. 2 , the method for starting a timer may include the following steps:
  • Step 201 Receive data and/or information sent by a second terminal device through SL.
  • Step 202 Determine whether to feed back data and/or information.
  • Step 203 when it is determined that data and/or information are not fed back, the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position starts the first RTT (Round Trip Time, round trip delay) timing device.
  • RTT Random Trip Time, round trip delay
  • Step 204 determine that the first RTT timer expires, and start the first retransmission timer.
  • Step 205 monitor the PSCCH during the running of the first retransmission timer.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • FIG. 3 is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a first terminal device. As shown in FIG. 3 , the method for starting a timer may include the following steps:
  • Step 301 Receive data and/or information sent by a second terminal device through SL.
  • Step 302. Determine whether to feed back data and/or information.
  • Step 303 when it is determined that there is no data and/or information feedback, start a first retransmission timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 304 monitor the PSCCH during the running of the first retransmission timer.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 4a is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a first terminal device. As shown in Fig. 4a, the method for starting a timer may include the following steps:
  • Step 401a receiving data and/or information sent by the second terminal device through the SL.
  • Step 402a determine whether to perform feedback on the received data and/or information.
  • Step 403a when it is determined that there is no data and/or information feedback, start the first RTT timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 404a determine that the first RTT timer expires, and start the first retransmission timer.
  • Step 405a monitor the PSCCH during the running of the first retransmission timer.
  • Step 406a determine that data and/or information is received and successfully decoded during the running of the first retransmission timer, and stop the first retransmission timer.
  • the first retransmission timer may be stopped to end the retransmission.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 4b is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a first terminal device. As shown in Fig. 4b, the method for starting a timer may include the following steps:
  • Step 401b receiving data and/or information sent by the second terminal device through the SL.
  • Step 402b Determine whether to feed back data and/or information.
  • Step 403b when it is determined that there is no data and/or information feedback, start the first retransmission timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 404b monitor the PSCCH during the running of the first retransmission timer.
  • Step 405b determine that data and/or information is received and successfully decoded during the running of the first retransmission timer, and stop the first retransmission timer.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 5a is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a first terminal device. As shown in Fig. 5a, the method for starting a timer may include the following steps:
  • Step 501a receiving data and/or information sent by the second terminal device through the SL.
  • Step 502a Determine whether to feed back data and/or information.
  • Step 503a when it is determined not to feed back data and/or information, start a first RTT timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 504a determine that the first RTT timer expires, and start the first retransmission timer.
  • Step 505a monitor the PSCCH during the running of the first retransmission timer.
  • steps 501a-505a For other detailed introductions about steps 501a-505a, reference may be made to the descriptions of the above embodiments, and the embodiments of the present disclosure will not repeat them here.
  • Step 506a determine that no data and/or information in the PSCCH is monitored during the running of the first retransmission timer, and start a second RTT timer when the first retransmission timer expires.
  • Step 507a determine that the second RTT timer expires, and start a second retransmission timer.
  • Step 508a during the running of the second retransmission timer, at least monitor the PSCCH.
  • Data and/or information based on this, in order to further prolong the retransmission time and avoid transmission failure, when the first retransmission timer expires, start the second RTT timer, and determine that the second RTT timer expires, and then restart the second RTT timer Two retransmission timers, and continue to monitor the PSCCH during the running of the second retransmission timer, so as to increase the retransmission success rate.
  • the second RTT timer may be an RTT timer.
  • the first RTT timer and the second RTT timer may be the same or different, and the first retransmission timer and the second retransmission timer may be the same or different.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 5b is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a first terminal device. As shown in Fig. 5b, the method for starting a timer may include the following steps:
  • Step 501b Receive data and/or information sent by the second terminal device through the SL.
  • Step 502b Determine whether to feed back data and/or information.
  • Step 503b when it is determined that there is no data and/or information feedback, start a first retransmission timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 504b monitor the PSCCH during the running of the first retransmission timer.
  • Step 505b Determine that no data and/or information in the PSCCH is monitored during the running of the first retransmission timer, and start a second RTT timer when the first retransmission timer expires.
  • Step 506b Determine that the second RTT timer expires, and start a second retransmission timer.
  • Step 507b monitor the PSCCH during the running of the second retransmission timer.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 6a is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a first terminal device. As shown in Fig. 6a, the method for starting a timer may include the following steps:
  • Step 601a Receive data and/or information sent by the second terminal device through the SL.
  • Step 602a Determine whether to feed back data and/or information.
  • Step 603a when it is determined that there is no data and/or information feedback, start the first RTT timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 604a determine that the first RTT timer expires, and start the first retransmission timer.
  • Step 605a monitor the PSCCH while the first retransmission timer is running.
  • Step 606a determine that no data and/or information in the PSCCH is monitored during the running of the first retransmission timer, and start a second RTT timer when the first retransmission timer expires.
  • Step 607a determine that the second RTT timer expires, and start a second retransmission timer.
  • Step 608a during the running of the second retransmission timer, at least monitor the PSCCH.
  • Step 609a determine that data and/or information is received and successfully decoded during the running of the second retransmission timer, and stop the second retransmission timer.
  • the second retransmission timer may be stopped to end the retransmission.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 6b is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a first terminal device. As shown in Fig. 6b, the method for starting a timer may include the following steps:
  • Step 601b Receive data and/or information sent by the second terminal device through the SL.
  • Step 602b Determine whether to feed back data and/or information.
  • Step 603b when it is determined that there is no data and/or information feedback, start a first retransmission timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 604b monitor the PSCCH during the running of the first retransmission timer.
  • Step 605b Determine that no data and/or information in the PSCCH is monitored during the running of the first retransmission timer, and start a second RTT timer when the first retransmission timer expires.
  • Step 606b Determine that the second RTT timer expires, and start a second retransmission timer.
  • Step 607b during the running of the second retransmission timer, at least monitor the PSCCH.
  • Step 608b Determine that data and/or information is received and successfully decoded during the running of the second retransmission timer, and stop the second retransmission timer.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 7a is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a first terminal device. As shown in Fig. 7a, the method for starting a timer may include the following steps:
  • Step 701a receiving data and/or information sent by the second terminal device through the SL.
  • Step 702a Determine whether to feed back data and/or information.
  • Step 703a when it is determined that there is no data and/or information feedback, start the first RTT timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 704a determine that the first RTT timer expires, and start the first retransmission timer.
  • Step 705a monitor the PSCCH during the running of the first retransmission timer.
  • Step 706a determine that no data and/or information in the PSCCH is monitored during the running of the first retransmission timer, and start a second RTT timer when the first retransmission timer expires.
  • Step 707a determine that the second RTT timer expires, and start a second retransmission timer.
  • Step 708a during the running of the second retransmission timer, at least monitor the PSCCH.
  • Step 709a determine that no data and/or information in the PSCCH is monitored during the running of the second retransmission timer, and start a second RTT timer when the second retransmission timer expires.
  • Step 710a determine that the second RTT timer expires, and start a second retransmission timer.
  • Step 711a during the running of the second retransmission timer, at least monitor the PSCCH.
  • steps 709a-711a may be executed cyclically.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 7b is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a first terminal device. As shown in Fig. 7b, the method for starting a timer may include the following steps:
  • Step 701b Receive data and/or information sent by the second terminal device through the SL.
  • Step 702b Determine whether to feed back data and/or information.
  • Step 703b when it is determined that there is no data and/or information feedback, start a first retransmission timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 704b monitor the PSCCH during the running of the first retransmission timer.
  • Step 705b Determine that no data and/or information in the PSCCH is monitored during the running of the first retransmission timer, and start a second RTT timer when the first retransmission timer expires.
  • Step 706b Determine that the second RTT timer expires, and start a second retransmission timer.
  • Step 707b during the running of the second retransmission timer, at least monitor the PSCCH.
  • Step 708b Determine that no data and/or information in the PSCCH is monitored during the running of the second retransmission timer, and start a second RTT timer when the second retransmission timer expires.
  • Step 709b Determine that the second RTT timer expires, and start a second retransmission timer.
  • Step 710b during the running of the second retransmission timer, at least monitor the PSCCH.
  • step 708b-step 710b may be executed cyclically.
  • steps 701b-710b reference may be made to the descriptions of the foregoing embodiments, and details are not described in this embodiment of the present disclosure.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 8a is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a first terminal device. As shown in Fig. 8a, the method for starting a timer may include the following steps:
  • Step 801a receiving data and/or information sent by the second terminal device through the SL.
  • Step 802a determine whether to feed back data and/or information.
  • Step 803a when it is determined not to feed back data and/or information, start a first RTT timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 804a determine that the first RTT timer expires, and start the first retransmission timer.
  • Step 805a monitor the PSCCH during the running of the first retransmission timer.
  • Step 806a determine that no data and/or information in the PSCCH is monitored during the running of the first retransmission timer, and start a second RTT timer when the first retransmission timer expires.
  • Step 807a determine that the second RTT timer expires, and start a second retransmission timer.
  • Step 808a during the running of the second retransmission timer, at least monitor the PSCCH.
  • Step 809a determine that no data and/or information in the PSCCH is monitored during the running of the second retransmission timer, and start a second RTT timer when the second retransmission timer expires.
  • Step 810a determine that the second RTT timer expires, and start a second retransmission timer.
  • Step 811a during the running of the second retransmission timer, at least monitor the PSCCH.
  • Step 812a Count the times of starting the second RTT timer or the second retransmission timer.
  • Step 813a when the start times of the second RTT timer or the start times of the second retransmission timer is greater than or equal to the first threshold, stop starting the second RTT timer or the second retransmission timer.
  • the first threshold may be configured by the second terminal device through a sidelink RRC (Radio Resource Control, radio resource control) message, or may also be configured by the base station through a Uu RRC message.
  • RRC Radio Resource Control, radio resource control
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 8b is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a first terminal device. As shown in Fig. 8b, the method for starting a timer may include the following steps:
  • Step 801b Receive data and/or information sent by the second terminal device through the SL.
  • Step 802b Determine whether to feed back data and/or information.
  • Step 803b when it is determined that there is no data and/or information feedback, start a first retransmission timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 804b monitor the PSCCH during the running of the first retransmission timer.
  • Step 805b Determine that no data and/or information in the PSCCH is monitored during the running of the first retransmission timer, and start a second RTT timer when the first retransmission timer expires.
  • Step 806b Determine that the second RTT timer expires, and start a second retransmission timer.
  • Step 807b during the running of the second retransmission timer, at least monitor the PSCCH.
  • Step 808b determine that no data and/or information in the PSCCH is monitored during the running of the second retransmission timer, and start a second RTT timer when the second retransmission timer expires.
  • step 809b it is determined that the second RTT timer expires, and a second retransmission timer is started.
  • Step 810b during the running of the second retransmission timer, at least monitor the PSCCH.
  • Step 811b Count the times of starting the second RTT timer or the second retransmission timer.
  • Step 812b Stop starting the second RTT timer or the second retransmission timer when the number of times the second RTT timer is started or the number of times the second retransmission timer is started is greater than or equal to the first threshold.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 9a is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a first terminal device. As shown in Fig. 9a, the method for starting a timer may include the following steps:
  • Step 901a Receive data and/or information sent by the second terminal device through the SL.
  • Step 902a Determine whether to feed back data and/or information.
  • Step 903a when it is determined that there is no data and/or information feedback, start the first RTT timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 904a determine that the first RTT timer expires, and start the first retransmission timer.
  • Step 905a monitor the PSCCH during the running of the first retransmission timer.
  • Step 906a determine that no data and/or information in the PSCCH is monitored during the running of the first retransmission timer, and start a third retransmission timer when the first retransmission timer expires.
  • Step 907a during the running of the third retransmission timer, at least monitor the PSCCH.
  • the first retransmission timer and the third retransmission timer may be the same or different.
  • the third retransmission timer is started, and during the running of the third retransmission timer, continue At least monitor the PSCCH.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 9b is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a first terminal device. As shown in Fig. 9b, the method for starting a timer may include the following steps:
  • Step 901b Receive data and/or information sent by the second terminal device through the SL.
  • Step 902b Determine whether to feed back data and/or information.
  • Step 903b when it is determined that there is no data and/or information feedback, start a first retransmission timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 904b monitor the PSCCH during the running of the first retransmission timer.
  • Step 905b Determine that no data and/or information in the PSCCH is monitored during the running of the first retransmission timer, and start a third retransmission timer when the first retransmission timer expires.
  • Step 906b during the running of the third retransmission timer, at least monitor the PSCCH.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 10a is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a first terminal device. As shown in Fig. 10a, the method for starting a timer may include the following steps:
  • Step 1001a receiving data and/or information sent by the second terminal device through SL.
  • Step 1002a determine whether to feed back data and/or information.
  • Step 1003a when it is determined not to feed back data and/or information, start a first RTT timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 1004a determine that the first RTT timer expires, and start the first retransmission timer.
  • Step 1005a monitor the PSCCH during the running of the first retransmission timer.
  • Step 1006a determine that no data and/or information in the PSCCH is monitored during the running of the first retransmission timer, and start a third retransmission timer when the first retransmission timer expires.
  • Step 1007a during the running of the third retransmission timer, at least monitor the PSCCH.
  • Step 1008a determine that data and/or information is received and successfully decoded during the running of the third retransmission timer, and stop the third retransmission timer.
  • the third retransmission timer may be stopped to end the retransmission.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 10b is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a first terminal device. As shown in Fig. 10b, the method for starting a timer may include the following steps:
  • Step 1001b receiving data and/or information sent by the second terminal device through SL.
  • Step 1002b determine whether to feed back data and/or information.
  • Step 1003b when it is determined that there is no data and/or information feedback, start a first retransmission timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 1004b monitor the PSCCH during the running of the first retransmission timer.
  • Step 1005b Determine that no data and/or information in the PSCCH is monitored during the running of the first retransmission timer, and start a third retransmission timer when the first retransmission timer expires.
  • Step 1006b during the running of the third retransmission timer, at least monitor the PSCCH.
  • Step 1007b Determine that data and/or information is received and successfully decoded during the running of the third retransmission timer, and stop the third retransmission timer.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 11a is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a first terminal device. As shown in Fig. 11a, the method for starting a timer may include the following steps:
  • Step 1101a receiving data and/or information sent by the second terminal device through SL.
  • Step 1102a determine whether to feed back data and/or information.
  • Step 1103a when it is determined not to feed back data and/or information, start a first RTT timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 1104a determine that the first RTT timer expires, and start the first retransmission timer.
  • Step 1105a monitor the PSCCH during the running of the first retransmission timer.
  • Step 1106a determine that no data and/or information in the PSCCH is monitored during the running of the first retransmission timer, and start a third retransmission timer when the first retransmission timer expires.
  • Step 1107a during the running of the third retransmission timer, at least monitor the PSCCH.
  • Step 1108a determine that no data and/or information in the PSCCH is monitored during the running of the third retransmission timer, and start the third retransmission timer when the third retransmission timer expires.
  • Step 1109a during the running of the third retransmission timer, at least monitor the PSCCH.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 11b is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a first terminal device. As shown in Fig. 11b, the method for starting a timer may include the following steps:
  • Step 1101b receiving data and/or information sent by the second terminal device through SL.
  • Step 1102b determine whether to feed back data and/or information.
  • Step 1103b when it is determined not to feed back data and/or information, start a first retransmission timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 1104b monitor the PSCCH during the running of the first retransmission timer.
  • Step 1105b determine that no data and/or information in the PSCCH is monitored during the running of the first retransmission timer, and start a third retransmission timer when the first retransmission timer expires.
  • Step 1106b during the running of the third retransmission timer, at least monitor the PSCCH.
  • Step 1107b determine that no data and/or information in the PSCCH is monitored during the running of the third retransmission timer, and start the third retransmission timer when the third retransmission timer expires;
  • Step 1108b during the running of the third retransmission timer, at least monitor the PSCCH.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 12a is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a first terminal device. As shown in Fig. 12a, the method for starting a timer may include the following steps:
  • Step 1201a receiving data and/or information sent by the second terminal device through SL.
  • Step 1202a determine whether to feed back data and/or information.
  • Step 1203a when it is determined not to feed back data and/or information, start a first RTT timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 1204a determine that the first RTT timer expires, and start the first retransmission timer.
  • Step 1205a monitor the PSCCH during the running of the first retransmission timer.
  • Step 1206a determine that no data and/or information in the PSCCH is monitored during the running of the first retransmission timer, and start a third retransmission timer when the first retransmission timer expires.
  • Step 1207a during the running of the third retransmission timer, at least monitor the PSCCH.
  • Step 1208a determine that no data and/or information in the PSCCH is monitored during the running of the third retransmission timer, and start the third retransmission timer when the third retransmission timer expires.
  • Step 1209a during the running of the third retransmission timer, at least monitor the PSCCH.
  • Step 1210a count the times of starting the third retransmission timer.
  • Step 1211a when the number of starts of the third retransmission timer is greater than or equal to the second threshold, stop starting the third retransmission timer.
  • the second threshold may be configured by the second terminal device through a sidelink RRC message, or may also be configured by the base station through a Uu RRC message.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 12b is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a first terminal device. As shown in Fig. 12b, the method for starting a timer may include the following steps:
  • Step 1201b receiving data and/or information sent by the second terminal device through SL.
  • Step 1202b determine whether to feed back data and/or information.
  • Step 1203b when it is determined that there is no data and/or information feedback, start a first retransmission timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 1204b monitor the PSCCH during the running of the first retransmission timer.
  • Step 1205b Determine that no data and/or information in the PSCCH is monitored during the running of the first retransmission timer, and start a third retransmission timer when the first retransmission timer expires.
  • Step 1206b during the running of the third retransmission timer, at least monitor the PSCCH.
  • Step 1207b Determine that no data and/or information in the PSCCH is monitored during the running of the third retransmission timer, and start the third retransmission timer when the third retransmission timer expires.
  • Step 1208b during the running of the third retransmission timer, at least monitor the PSCCH.
  • Step 1209b Count the times of starting the third retransmission timer.
  • Step 1210b Stop starting the third retransmission timer when the number of starts of the third retransmission timer is greater than or equal to the second threshold.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • FIG. 13 is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a second terminal device. As shown in FIG. 13 , the method for starting a timer may include the following steps:
  • Step 1301. Send data and/or information to the first terminal device through the SL.
  • Step 1302. Determine whether the first terminal device feeds back the received data and/or information.
  • Step 1303 determine that the first terminal device does not feed back the received data and/or information, and start a first retransmission timer.
  • Step 1304 during the running period of the first retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • FIG. 14 is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a second terminal device. As shown in FIG. 14 , the method for starting a timer may include the following steps:
  • Step 1401. Send data and/or information to the first terminal device through the SL.
  • Step 1402 determine whether the first terminal device feeds back the received data and/or information.
  • Step 1403 Determine that the first terminal device does not feed back the received data and/or information, and start the first RTT timer in the first time slot after the PSSCH resource position or in the first time slot after the PSCCH resource position.
  • Step 1404 determine that the first RTT timer expires, and start the first retransmission timer.
  • Step 1405 during the running period of the first retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • FIG. 15 is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a second terminal device. As shown in FIG. 15 , the method for starting a timer may include the following steps:
  • Step 1501. Send data and/or information to the first terminal device through the SL.
  • Step 1502 determine whether the first terminal device feeds back the received data and/or information.
  • Step 1503 Determine that the first terminal device does not feed back the received data and/or information, and start a first retransmission timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 1504 during the running period of the first retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 16a is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a second terminal device. As shown in Fig. 16a, the method for starting a timer may include the following steps:
  • Step 1601a send data and/or information to the first terminal device through SL.
  • Step 1602a determine whether the first terminal device feeds back the received data and/or information.
  • Step 1603a determine that the first terminal device does not feed back the received data and/or information, and start the first RTT timer in the first time slot after the PSSCH resource position or in the first time slot after the PSCCH resource position.
  • Step 1604a determine that the first RTT timer expires, and start the first retransmission timer.
  • Step 1605a during the running period of the first retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 1606a stop the first retransmission timer.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 16b is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a second terminal device. As shown in Fig. 16b, the method for starting a timer may include the following steps:
  • Step 1601b sending data and/or information to the first terminal device through SL.
  • Step 1602b determine whether the first terminal device feeds back the received data and/or information.
  • Step 1603b determine that the first terminal device does not feed back the received data and/or information, and start a first retransmission timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 1604b during the running period of the first retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 1605b stop the first retransmission timer.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 17a is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a second terminal device. As shown in Fig. 17a, the method for starting a timer may include the following steps:
  • Step 1701a send data and/or information to the first terminal device through SL.
  • Step 1702a determine whether the first terminal device feeds back the received data and/or information.
  • Step 1703a determine that the first terminal device does not feed back the received data and/or information, and start the first RTT timer in the first time slot after the PSSCH resource position or in the first time slot after the PSCCH resource position.
  • Step 1704a determine that the first RTT timer expires, and start the first retransmission timer.
  • Step 1705a during the running period of the first retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 1706a determine that the first retransmission timer expires, and start the second RTT timer
  • Step 1707a determine that the second RTT timer expires, and start the second retransmission timer
  • Step 1708a during the running of the second retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 17b is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a second terminal device. As shown in Fig. 17b, the method for starting a timer may include the following steps:
  • Step 1701b sending data and/or information to the first terminal device through SL.
  • Step 1702b Determine whether the first terminal device feeds back the received data and/or information.
  • Step 1703b determine that the first terminal device does not feed back the received data and/or information, and start a first retransmission timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 1704b during the running period of the first retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 1705b determine that the first retransmission timer expires, and start the second RTT timer
  • Step 1706b determine that the second RTT timer expires, and start the second retransmission timer
  • Step 1707b during the running of the second retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 18a is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a second terminal device. As shown in Fig. 18a, the method for starting a timer may include the following steps:
  • Step 1801a send data and/or information to the first terminal device through SL.
  • Step 1802a determine whether the first terminal device feeds back the received data and/or information.
  • Step 1803a determine that the first terminal device does not feed back the received data and/or information, and start the first RTT timer in the first time slot after the PSSCH resource position or in the first time slot after the PSCCH resource position.
  • Step 1804a determine that the first RTT timer expires, and start the first retransmission timer.
  • Step 1805a during the running period of the first retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 1806a determine that the first retransmission timer expires, and start a second RTT timer.
  • Step 1807a determine that the second RTT timer expires, and start a second retransmission timer.
  • Step 1808a during the running of the second retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 1809a stop the second retransmission timer.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 18b is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a second terminal device. As shown in Fig. 18b, the method for starting a timer may include the following steps:
  • Step 1801b sending data and/or information to the first terminal device through SL.
  • Step 1802b determine whether the first terminal device feeds back the received data and/or information.
  • Step 1803b Determine that the first terminal device does not feed back the received data and/or information, and start a first retransmission timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 1804b during the running period of the first retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 1805b Determine that the first retransmission timer expires, and start a second RTT timer.
  • Step 1806b determine that the second RTT timer expires, and start a second retransmission timer.
  • Step 1807b during the running of the second retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 1808b stop the second retransmission timer.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 19a is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a second terminal device. As shown in Fig. 19a, the method for starting a timer may include the following steps:
  • Step 1901a send data and/or information to the first terminal device through SL.
  • Step 1902a determine whether the first terminal device feeds back the received data and/or information.
  • Step 1903a determine that the first terminal device does not feed back the received data and/or information, and start the first RTT timer in the first time slot after the PSSCH resource position or in the first time slot after the PSCCH resource position.
  • Step 1904a determine that the first RTT timer expires, and start the first retransmission timer.
  • Step 1905a during the running period of the first retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 1906a determine that the first retransmission timer expires, and start the second RTT timer
  • Step 1907a determine that the second RTT timer expires, and start the second retransmission timer
  • Step 1908a during the running of the second retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 1909a determine that the second retransmission timer expires, and start the second RTT timer.
  • Step 1910a determine that the second RTT timer expires, and start a second retransmission timer.
  • Step 1911a during the running of the second retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feed back the data and/or information, and When it is determined that the data and/or information is not fed back, the first retransmission timer is started, and the PSCCH is monitored during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 19b is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a second terminal device. As shown in Fig. 19b, the method for starting a timer may include the following steps:
  • Step 1901b sending data and/or information to the first terminal device through SL.
  • Step 1902b determine whether the first terminal device feeds back the received data and/or information.
  • Step 1903b Determine that the first terminal device does not feed back the received data and/or information, and start a first retransmission timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 1904b during the running period of the first retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • step 1905b it is determined that the first retransmission timer expires, and the second RTT timer is started.
  • Step 1906b determine that the second RTT timer expires, and start a second retransmission timer.
  • Step 1907b during the running of the second retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • step 1908b it is determined that the second retransmission timer expires, and the second RTT timer is started.
  • Step 1909b determine that the second RTT timer expires, and start a second retransmission timer.
  • Step 1910b during the running of the second retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 20a is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a second terminal device. As shown in Fig. 20a, the method for starting a timer may include the following steps:
  • Step 2001a sending data and/or information to the first terminal device through SL.
  • Step 2002a determine whether the first terminal device feeds back the received data and/or information.
  • Step 2003a determine that the first terminal device does not feed back the received data and/or information, and start the first RTT timer in the first time slot after the PSSCH resource position or in the first time slot after the PSCCH resource position.
  • Step 2004a determine that the first RTT timer expires, and start the first retransmission timer.
  • Step 2005a during the running period of the first retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 2006a determine that the first retransmission timer expires, and start a second RTT timer.
  • Step 2007a determine that the second RTT timer expires, and start the second retransmission timer.
  • Step 2008a during the running of the second retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 2009a determine that the second retransmission timer expires, and start the second RTT timer.
  • Step 2010a determine that the second RTT timer expires, and start a second retransmission timer.
  • Step 2011a during the running of the second retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 2012a count the times of starting the second RTT timer or the second retransmission timer.
  • Step 2013a when the start times of the second RTT timer or the start times of the second retransmission timer is greater than or equal to the first threshold, stop starting the second RTT timer or the second retransmission timer.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 20b is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a second terminal device. As shown in Fig. 20b, the method for starting a timer may include the following steps:
  • Step 2001b sending data and/or information to the first terminal device through SL.
  • Step 2002b determine whether the first terminal device feeds back the received data and/or information.
  • Step 2003b determine that the first terminal device does not feed back the received data and/or information, and start a first retransmission timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 2004b during the running period of the first retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • step 2005b it is determined that the first retransmission timer expires, and a second RTT timer is started.
  • Step 2006b determine that the second RTT timer expires, and start a second retransmission timer.
  • Step 2007b during the running of the second retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • step 2008b it is determined that the second retransmission timer expires, and the second RTT timer is started.
  • step 2009b it is determined that the second RTT timer expires, and a second retransmission timer is started.
  • Step 2010b during the running of the second retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 2011b count the times of starting the second RTT timer or the second retransmission timer.
  • Step 2012b Stop starting the second RTT timer or the second retransmission timer when the number of starts of the second RTT timer or the number of starts of the second retransmission timer is greater than or equal to the first threshold.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 21a is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a second terminal device. As shown in Fig. 21a, the method for starting a timer may include the following steps:
  • Step 2101a sending data and/or information to the first terminal device through SL.
  • Step 2102a determine whether the first terminal device feeds back the received data and/or information.
  • Step 2103a determine that the first terminal device does not feed back the received data and/or information, and start the first RTT timer in the first time slot after the PSSCH resource position or in the first time slot after the PSCCH resource position.
  • Step 2104a determine that the first RTT timer expires, and start the first retransmission timer.
  • Step 2105a during the running period of the first retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 2106a when the first retransmission timer expires, start a third retransmission timer.
  • Step 2107a during the running of the third retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 2105a when the first retransmission timer expires, start a third retransmission timer, and send data and/or information to the first terminal device through the PSCCH during the running of the third retransmission timer.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 21b is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a second terminal device. As shown in Fig. 21b, the method for starting a timer may include the following steps:
  • Step 2101b sending data and/or information to the first terminal device through SL.
  • Step 2102b determine whether the first terminal device feeds back the received data and/or information.
  • Step 2103b determine that the first terminal device does not feed back the received data and/or information, and start the first retransmission timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 2104b during the running period of the first retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 2105b when the first retransmission timer expires, start a third retransmission timer.
  • Step 2106b during the running of the third retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 22a is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a second terminal device. As shown in Fig. 22a, the method for starting a timer may include the following steps:
  • Step 2201a send data and/or information to the first terminal device through SL.
  • Step 2202a determine whether the first terminal device feeds back the received data and/or information.
  • Step 2203a determine that the first terminal device does not feed back the received data and/or information, and start the first RTT timer in the first time slot after the PSSCH resource position or in the first time slot after the PSCCH resource position.
  • Step 2204a determine that the first RTT timer expires, and start the first retransmission timer.
  • Step 2205a during the running period of the first retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 2206a when the first retransmission timer expires, start a third retransmission timer.
  • Step 2207a during the running of the third retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 2208a stop the third retransmission timer.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 22b is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a second terminal device. As shown in Fig. 22b, the method for starting a timer may include the following steps:
  • Step 2201b sending data and/or information to the first terminal device through SL.
  • Step 2202b determine whether the first terminal device feeds back the received data and/or information.
  • Step 2203b Determine that the first terminal device does not feed back the received data and/or information, and start a first retransmission timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 2204b during the running period of the first retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 2205b when the first retransmission timer expires, start a third retransmission timer.
  • Step 2206b during the running of the third retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 2207b stop the third retransmission timer.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 23a is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a second terminal device. As shown in Fig. 23a, the method for starting a timer may include the following steps:
  • Step 2301a send data and/or information to the first terminal device through SL.
  • Step 2302a determine whether the first terminal device feeds back the received data and/or information.
  • Step 2303a determine that the first terminal device does not feed back the received data and/or information, and start the first RTT timer in the first time slot after the PSSCH resource position or in the first time slot after the PSCCH resource position.
  • Step 2304a determine that the first RTT timer expires, and start the first retransmission timer.
  • Step 2305a during the running period of the first retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 2306a when the first retransmission timer expires, start a third retransmission timer.
  • Step 2307a during the running of the third retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 2308a when the third retransmission timer expires, start the third retransmission timer.
  • Step 2309a during the running of the third retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 23b is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a second terminal device. As shown in Fig. 23b, the method for starting a timer may include the following steps:
  • Step 2301b sending data and/or information to the first terminal device through SL.
  • Step 2302b determine whether the first terminal device feeds back the received data and/or information.
  • Step 2303b determine that the first terminal device does not feed back the received data and/or information, and start a first retransmission timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 2304b during the running period of the first retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 2305b when the first retransmission timer expires, start a third retransmission timer.
  • Step 2306b during the running of the third retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 2307b when the third retransmission timer expires, start the third retransmission timer.
  • Step 2308b during the running of the third retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 24a is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a second terminal device. As shown in Fig. 24a, the method for starting a timer may include the following steps:
  • Step 2401a send data and/or information to the first terminal device through SL.
  • Step 2402a determine whether the first terminal device feeds back the received data and/or information.
  • Step 2403a determine that the first terminal device does not feed back the received data and/or information, and start the first RTT timer in the first time slot after the PSSCH resource position or in the first time slot after the PSCCH resource position.
  • Step 2404a determine that the first RTT timer expires, and start the first retransmission timer.
  • Step 2405a during the running period of the first retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 2406a when the first retransmission timer expires, start a third retransmission timer.
  • Step 2407a during the running of the third retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 2408a when the third retransmission timer expires, start the third retransmission timer.
  • Step 2409a during the running of the third retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 2410a count the times of starting the third retransmission timer.
  • Step 2411a when the number of starts of the third retransmission timer is greater than or equal to the second threshold, stop starting the third retransmission timer.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 24b is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a second terminal device. As shown in Fig. 24b, the method for starting a timer may include the following steps:
  • Step 2401b send data and/or information to the first terminal device through SL.
  • Step 2402b determine whether the first terminal device feeds back the received data and/or information.
  • Step 2403b Determine that the first terminal device does not feed back the received data and/or information, and start a first retransmission timer in the first time slot after the PSSCH resource position or the first time slot after the PSCCH resource position.
  • Step 2404b during the running period of the first retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 2405b when the first retransmission timer expires, start a third retransmission timer.
  • Step 2406b during the running of the third retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 2407b when the third retransmission timer expires, start the third retransmission timer.
  • Step 2408b during the running of the third retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • Step 2409b Count the times of starting the third retransmission timer.
  • Step 2410b Stop starting the third retransmission timer when the number of starts of the third retransmission timer is greater than or equal to the second threshold.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • FIG. 25 is a schematic flowchart of a method for starting a timer provided by an embodiment of the present disclosure, which is applied to a second terminal device. As shown in FIG. 25 , the method for starting a timer may include the following steps:
  • Step 2501 Send an SCI to the first terminal device, where the SCI is used to indicate whether the first terminal device needs to feed back received data and/or information.
  • Step 2502 Send data and/or information to the first terminal device through the SL.
  • Step 2503 determine whether the first terminal device feeds back the received data and/or information.
  • Step 2504 determine that the first terminal device does not feed back the received data and/or information, and start a first retransmission timer.
  • Step 2505 during the running period of the first retransmission timer, send data and/or information to the first terminal device through the PSCCH.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • Fig. 26 is a schematic structural diagram of a timer starting device provided by an embodiment of the present disclosure. As shown in Fig. 26, the device may include:
  • a receiving module 2601 configured to receive data and/or information sent by the second terminal device through SL;
  • a processing module 2602 configured to determine whether to feed back the data and/or information; and to start a first retransmission timer when determining not to feed back the data and/or information;
  • the receiving module 2601 is further configured to monitor a physical sidelink control channel PSCCH during the running of the first retransmission timer.
  • the first terminal device will receive the data and/or information sent by the second terminal device through SL, and determine whether to feedback the data and/or information , and when it is determined that there is no feedback for data and/or information, start a first retransmission timer, and monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • the processing module is also used for:
  • the first RTT timer is a round trip time RTT timer.
  • the processing module is also used for:
  • the device is also used for:
  • the device is also used for:
  • the device is also used for:
  • the device is also used for:
  • the device is also used for:
  • start times of the second RTT timer or the start times of the second retransmission timer are greater than or equal to the first threshold, stop starting the second RTT timer or the second retransmission timer.
  • the device is also used for:
  • the device is also used for:
  • the device is also used for:
  • the determining module is also used for:
  • the determining module is also used for:
  • Whether to perform feedback on the received data and/or information is determined according to whether the resource pool corresponding to the received data and/or information is configured with feedback resources.
  • the determining module is also used for:
  • Whether to feed back the data and/or information is determined according to whether the resource pool corresponding to the received data and/or information is configured with feedback resources.
  • Fig. 27 is a schematic structural diagram of a timer starting device provided by an embodiment of the present disclosure. As shown in Fig. 27, the device may include:
  • a sending module 2701 configured to send data and/or information to the first terminal device through SL;
  • the processing module 2702 is configured to determine whether the first terminal device feeds back the received data and/or information; and is configured to determine that the first terminal device does not feed back the received data and/or information, and starts the second a retransmission timer;
  • the sending module 2701 is further configured to send data and/or information to the first terminal device through the PSCCH while the first retransmission timer is running.
  • the first terminal device will receive a new transmission of data and/or information from the second terminal device, and determine that the received data and/or Whether the information is fed back, and when it is determined not to feed back the received data and/or information, start a first retransmission timer, and at least monitor the PSCCH during the running of the first retransmission timer. It can be seen from this that the embodiment of the present disclosure provides a method for starting a timer for the situation that the first terminal device does not perform feedback.
  • the processing module is also used for:
  • the first RTT timer is a round trip time RTT timer.
  • the processing module is also used for:
  • the first terminal device does not feed back the received data and/or information, and starts a first retransmission timer in the first time slot after the PSSCH resource position or in the first time slot after the PSCCH resource position.
  • the device is also used for:
  • the device is also used for:
  • the device is also used for:
  • the device is also used for:
  • the device is also used for:
  • start times of the second RTT timer or the start times of the second retransmission timer are greater than or equal to the first threshold, stop starting the second RTT timer or the second retransmission timer.
  • the device is also used for:
  • the device is also used for:
  • the device is also used for:
  • the device is also used for:
  • the device is also used for:
  • Fig. 28 is a block diagram of a user equipment terminal device 2800 provided by an embodiment of the present disclosure.
  • the terminal device 2800 may be a mobile phone, a computer, a digital broadcasting terminal device, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.
  • a terminal device 2800 may include at least one of the following components: a processing component 2802, a memory 2804, a power supply component 2806, a multimedia component 2808, an audio component 2810, an input/output (I/O) interface 2812, a sensor component 2813, and Communication component 2816.
  • the processing component 2802 generally controls the overall operations of the terminal device 2800, such as operations associated with display, telephone calls, data communication, camera operations, and recording operations.
  • the processing component 2802 may include at least one processor 2820 to execute instructions, so as to complete all or part of the steps of the above method.
  • processing component 2802 can include at least one module that facilitates interaction between processing component 2802 and other components.
  • processing component 2802 may include a multimedia module to facilitate interaction between multimedia component 2808 and processing component 2802 .
  • the memory 2804 is configured to store various types of data to support operations at the terminal device 2800 . Examples of such data include instructions for any application or method operating on the terminal device 2800, contact data, phonebook data, messages, pictures, videos, etc.
  • the memory 2804 can be realized by any type of volatile or non-volatile storage device or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic or Optical Disk Magnetic Disk
  • the power supply component 2806 provides power to various components of the terminal device 2800 .
  • Power components 2806 may include a power management system, at least one power supply, and other components associated with generating, managing, and distributing power for end device 2800 .
  • the multimedia component 2808 includes a screen providing an output interface between the terminal device 2800 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user.
  • the touch panel includes at least one touch sensor to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense a boundary of a touch or slide action, but also detect a wake-up time and pressure related to the touch or slide operation.
  • the multimedia component 2808 includes a front camera and/or a rear camera. When the terminal device 2800 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capability.
  • the audio component 2810 is configured to output and/or input audio signals.
  • the audio component 2810 includes a microphone (MIC), which is configured to receive an external audio signal when the terminal device 2800 is in an operation mode, such as a call mode, a recording mode and a voice recognition mode. Received audio signals may be further stored in memory 2804 or sent via communication component 2816 .
  • the audio component 2810 also includes a speaker for outputting audio signals.
  • the I/O interface 2812 provides an interface between the processing component 2802 and a peripheral interface module, which may be a keyboard, a click wheel, a button, and the like. These buttons may include, but are not limited to: a home button, volume buttons, start button, and lock button.
  • the sensor component 2813 includes at least one sensor, which is used to provide the terminal device 2800 with status assessments of various aspects.
  • the sensor component 2813 can detect the open/close state of the device 2800, the relative positioning of the components, for example, the components are the display and the keypad of the terminal device 2800, the sensor component 2813 can also detect the terminal device 2800 or a component of the terminal device 2800 The position change of the terminal device 2800, the presence or absence of the user's contact with the terminal device 2800, the orientation or acceleration/deceleration of the terminal device 2800 and the temperature change of the terminal device 2800.
  • the sensor assembly 2813 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact.
  • the sensor assembly 2813 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 2813 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.
  • the communication component 2816 is configured to facilitate wired or wireless communication between the terminal device 2800 and other devices.
  • the terminal device 2800 can access a wireless network based on communication standards, such as WiFi, 2G or 3G, or a combination thereof.
  • the communication component 2816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 2816 also includes a near field communication (NFC) module to facilitate short-range communication.
  • the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID Radio Frequency Identification
  • IrDA Infrared Data Association
  • UWB Ultra Wideband
  • Bluetooth Bluetooth
  • the terminal device 2800 may be implemented by at least one Application Specific Integrated Circuit (ASIC), Digital Signal Processor (DSP), Digital Signal Processing Device (DSPD), Programmable Logic Device (PLD), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic implementations for performing the methods described above.
  • ASIC Application Specific Integrated Circuit
  • DSP Digital Signal Processor
  • DSPD Digital Signal Processing Device
  • PLD Programmable Logic Device
  • FPGAs Field Programmable Gate Arrays
  • controllers microcontrollers, microprocessors or other electronic implementations for performing the methods described above.
  • Fig. 29 is a block diagram of a network side device 2900 provided by an embodiment of the present disclosure.
  • the network side device 2900 may be provided as a network side device.
  • the network side device 2900 includes a processing component 2911, which further includes at least one processor, and a memory resource represented by a memory 2932 for storing instructions executable by the processing component 2922, such as application programs.
  • the application programs stored in memory 2932 may include one or more modules each corresponding to a set of instructions.
  • the processing component 2910 is configured to execute instructions, so as to execute any method of the foregoing method applied to the network side device, for example, the method shown in FIG. 1 .
  • the network side device 2900 may also include a power supply component 2926 configured to perform power management of the network side device 2900, a wired or wireless network interface 2950 configured to connect the network side device 2900 to the network, and an input and output (I/O ) interface 2958.
  • the network side device 2900 can operate based on the operating system stored in the memory 2932, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, Free BSDTM or similar.
  • the methods provided in the embodiments of the present disclosure are introduced from the perspectives of the network side device and the terminal device respectively.
  • the network-side device and the terminal device may include a hardware structure and a software module, and realize the above-mentioned functions in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • a certain function among the above-mentioned functions may be implemented in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • the methods provided in the embodiments of the present disclosure are introduced from the perspectives of the network side device and the terminal device respectively.
  • the network-side device and the terminal device may include a hardware structure and a software module, and realize the above-mentioned functions in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • a certain function among the above-mentioned functions may be implemented in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • the communication device may include a transceiver module and a processing module.
  • the transceiver module may include a sending module and/or a receiving module, the sending module is used to realize the sending function, the receiving module is used to realize the receiving function, and the sending and receiving module can realize the sending function and/or the receiving function.
  • the communication device may be a terminal device (such as the terminal device in the foregoing method embodiments), may also be a device in the terminal device, and may also be a device that can be matched and used with the terminal device.
  • the communication device may be a network device, or a device in the network device, or a device that can be matched with the network device.
  • the communication device may be a network device, or a terminal device (such as the terminal device in the foregoing method embodiments), or a chip, a chip system, or a processor that supports the network device to implement the above method, or it may be a terminal device that supports A chip, a chip system, or a processor for realizing the above method.
  • the device can be used to implement the methods described in the above method embodiments, and for details, refer to the descriptions in the above method embodiments.
  • a communications device may include one or more processors.
  • the processor may be a general purpose processor or a special purpose processor or the like.
  • it can be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data
  • the central processor can be used to control communication devices (such as network side equipment, baseband chips, terminal equipment, terminal equipment chips, DU or CU, etc.)
  • a computer program that processes data for a computer program.
  • the communication device may further include one or more memories, on which computer programs may be stored, and the processor executes the computer programs, so that the communication device executes the methods described in the foregoing method embodiments.
  • data may also be stored in the memory.
  • the communication device and the memory can be set separately or integrated together.
  • the communication device may further include a transceiver and an antenna.
  • the transceiver may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., and is used to implement a transceiver function.
  • the transceiver may include a receiver and a transmitter, and the receiver may be called a receiver or a receiving circuit for realizing a receiving function; the transmitter may be called a transmitter or a sending circuit for realizing a sending function.
  • the communication device may further include one or more interface circuits.
  • the interface circuit is used to receive code instructions and transmit them to the processor.
  • the processor executes the code instructions to enable the communication device to execute the methods described in the foregoing method embodiments.
  • the communication device is a terminal device (such as the terminal device in the foregoing method embodiments): the processor is configured to execute any of the methods shown in FIGS. 1-4 .
  • the communication device is a network device: the transceiver is used to execute the method shown in any one of Fig. 5-Fig. 7 .
  • the processor may include a transceiver for implementing receiving and transmitting functions.
  • the transceiver may be a transceiver circuit, or an interface, or an interface circuit.
  • the transceiver circuits, interfaces or interface circuits for realizing the functions of receiving and sending can be separated or integrated together.
  • the above-mentioned transceiver circuit, interface or interface circuit may be used for reading and writing code/data, or the above-mentioned transceiver circuit, interface or interface circuit may be used for signal transmission or transfer.
  • the processor may store a computer program, and the computer program runs on the processor to enable the communication device to execute the methods described in the foregoing method embodiments.
  • a computer program may be embedded in a processor, in which case the processor may be implemented by hardware.
  • the communication device may include a circuit, and the circuit may implement the function of sending or receiving or communicating in the foregoing method embodiments.
  • the processors and transceivers described in this disclosure can be implemented on integrated circuits (integrated circuits, ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed-signal ICs, application specific integrated circuits (ASICs), printed circuit boards ( printed circuit board, PCB), electronic equipment, etc.
  • the processor and transceiver can also be fabricated using various IC process technologies such as complementary metal oxide semiconductor (CMOS), nMetal-oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS nMetal-oxide-semiconductor
  • PMOS P-type Metal oxide semiconductor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device described in the above embodiments may be a network device or a terminal device (such as the terminal device in the foregoing method embodiments), but the scope of the communication device described in this disclosure is not limited thereto, and the structure of the communication device may not be limited limits.
  • a communication device may be a stand-alone device or may be part of a larger device.
  • the communication device may be:
  • a set of one or more ICs may also include storage components for storing data and computer programs;
  • ASIC such as modem (Modem);
  • the communications device may be a chip or system-on-a-chip
  • the chip includes a processor and an interface.
  • the number of processors may be one or more, and the number of interfaces may be more than one.
  • the chip also includes a memory, which is used to store necessary computer programs and data.
  • An embodiment of the present disclosure also provides a system for determining the duration of a side link, the system includes a communication device as a terminal device (such as the first terminal device in the method embodiment above) in the foregoing embodiments and a communication device as a network device, Alternatively, the system includes the communication device as the terminal device in the foregoing embodiments (such as the first terminal device in the foregoing method embodiment) and the communication device as a network device.
  • the present disclosure also provides a readable storage medium on which instructions are stored, and when the instructions are executed by a computer, the functions of any one of the above method embodiments are realized.
  • the present disclosure also provides a computer program product, which implements the functions of any one of the above method embodiments when executed by a computer.
  • all or part of them may be implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product comprises one or more computer programs. When the computer program is loaded and executed on the computer, all or part of the processes or functions according to the embodiments of the present disclosure will be generated.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices.
  • the computer program can be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer program can be downloaded from a website, computer, server or data center Transmission to another website site, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media.
  • the available medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk (solid state disk, SSD)) etc.
  • a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
  • an optical medium for example, a high-density digital video disc (digital video disc, DVD)
  • a semiconductor medium for example, a solid state disk (solid state disk, SSD)
  • At least one in the present disclosure can also be described as one or more, and a plurality can be two, three, four or more, and the present disclosure is not limited.
  • the technical feature is distinguished by "first”, “second”, “third”, “A”, “B”, “C” and “D”, etc.
  • the technical features described in the “first”, “second”, “third”, “A”, “B”, “C” and “D” have no sequence or order of magnitude among the technical features described.

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Abstract

本公开提出一种定时器启动方法及设备/存储介质/装置，属于通信技术领域。其中，该方法包括：第一终端设备会接收第二终端设备通过SL发送的数据和/或信息（101），确定对数据和/或信息是否进行反馈（102），确定对数据和/或信息不反馈时，启动第一重传定时器（103），在第一重传定时器运行期间，监听PSCCH（104）。本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法，且可以进一步延长重传时间，避免传输失败。

Description

一种定时器启动方法/装置/设备及存储介质 技术领域
本公开涉及通信技术领域，尤其涉及一种定时器启动方法/装置/设备及存储介质。
背景技术
在通信系统中，通过引入SL(Sidelink，侧行链路)通信方式，以实现终端设备之间的直接通信。其中，当第二终端设备(如发送终端设备)向第一终端设备(如接收终端设备)发送数据和/或信息后，第一终端设备会进行反馈或不进行反馈，以及，若第一终端设备未成功接收数据和/或信息，通常还需要启动重传定时器以重传数据和/或信息。
但是，相关技术中，针对于第一终端设备不进行反馈这一情况，不存在有“如何启动重传定时器”的具体方法。
发明内容
本公开提出的定时器启动方法/装置/设备及存储介质，针对于第一终端设备不进行反馈这一情况，提供一种定时器启动方法。
本公开一方面实施例提出的定时器启动方法，应用于第一终端设备，包括：
接收第二终端设备通过SL发送的数据和/或信息；
确定对数据和/或信息是否进行反馈；
确定对数据和/或信息不反馈时，启动第一重传定时器；
在第一重传定时器运行期间，监听PSCCH。
本公开另一方面实施例提出的定时器启动方法，应用于第二终端设备，包括：
通过SL向第一终端设备发送数据和/或信息；
确定第一终端设备对接收到的数据和/或信息是否进行反馈；
确定第一终端设备对接收到的数据和/或信息不反馈，启动第一重传定时器；
在第一重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
本公开又一方面实施例提出的定时器启动装置，包括：
接收模块，用于接收第二终端设备通过SL发送的数据和/或信息；
处理模块，用于确定对所述数据和/或信息是否进行反馈；以及用于确定对所述数据和/或信息不反馈时，启动第一重传定时器；
所述接收模块，还用于在所述第一重传定时器运行期间，监听物理侧行控制信道PSCCH。
本公开又一方面实施例提出的定时器启动装置，包括：
发送模块，用于通过SL向第一终端设备发送数据和/或信息；
处理模块，用于确定所述第一终端设备对接收到的数据和/或信息是否进行反馈；以及用于确定所述第一终端设备对接收到的数据和/或信息不反馈，启动第一重传定时器；
所述发送模块，还用于在所述第一重传定时器运行期间，通过PSCCH向所述第一终端设备发送数据和/或信息。
本公开又一方面实施例提出的一种通信装置，所述装置包括处理器和存储器，所述存储器中存储有计算机程序，所述处理器执行所述存储器中存储的计算机程序，以使所述装置执行如上一方面实施例提出的方法。
本公开又一方面实施例提出的一种通信装置，所述装置包括处理器和存储器，所述存储器中存储有计算机程序，所述处理器执行所述存储器中存储的计算机程序，以使所述装置执行如上一方面实施例提出的方法。
本公开又一方面实施例提出的通信装置，包括：处理器和接口电路；
所述接口电路，用于接收代码指令并传输至所述处理器；
所述处理器，用于运行所述代码指令以执行如一方面实施例提出的方法。
本公开又一方面实施例提出的通信装置，包括：处理器和接口电路；
所述接口电路，用于接收代码指令并传输至所述处理器；
所述处理器，用于运行所述代码指令以执行如一方面实施例提出的方法。
本公开又一方面实施例提出的计算机可读存储介质，用于存储有指令，当所述指令被执行时，使如一方面实施例提出的方法被实现。
本公开又一方面实施例提出的计算机可读存储介质，用于存储有指令，当所述指令被执行时，使如一方面实施例提出的方法被实现。
综上所述，在本公开实施例提供的定时器启动方法及设备/存储介质/装置之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
本公开附加的方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本公开的实践了解到。
附图说明
本公开上述的和/或附加的方面和优点从下面结合附图对实施例的描述中将变得明显和容易理解，其中：
图1为本公开一个实施例所提供的定时器启动方法的流程示意图；
图2为本公开另一个实施例所提供的定时器启动方法的流程示意图；
图3为本公开再一个实施例所提供的定时器启动方法的流程示意图；
图4a为本公开又一个实施例所提供的定时器启动方法的流程示意图；
图4b为本公开又一个实施例所提供的定时器启动方法的流程示意图；
图5a为本公开又一个实施例所提供的定时器启动方法的流程示意图；
图5b为本公开又一个实施例所提供的定时器启动方法的流程示意图；
图6a为本公开又一个实施例所提供的定时器启动方法的流程示意图；
图6b为本公开又一个实施例所提供的定时器启动方法的流程示意图；
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图16b为本公开又一个实施例所提供的定时器启动方法的流程示意图；
图17a为本公开又一个实施例所提供的定时器启动方法的流程示意图；
图17b为本公开又一个实施例所提供的定时器启动方法的流程示意图；
图18a为本公开又一个实施例所提供的定时器启动方法的流程示意图；
图18b为本公开又一个实施例所提供的定时器启动方法的流程示意图；
图19a为本公开又一个实施例所提供的定时器启动方法的流程示意图；
图19b为本公开又一个实施例所提供的定时器启动方法的流程示意图；
图20a为本公开又一个实施例所提供的定时器启动方法的流程示意图；
图20b为本公开又一个实施例所提供的定时器启动方法的流程示意图；
图21a为本公开又一个实施例所提供的定时器启动方法的流程示意图；
图21b为本公开又一个实施例所提供的定时器启动方法的流程示意图；
图22a为本公开又一个实施例所提供的定时器启动方法的流程示意图；
图22b为本公开又一个实施例所提供的定时器启动方法的流程示意图；
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图23b为本公开又一个实施例所提供的定时器启动方法的流程示意图；
图24a为本公开又一个实施例所提供的定时器启动方法的流程示意图；
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图28是本公开一个实施例所提供的一种用户设备的框图；
图29为本公开一个实施例所提供的一种网络侧设备的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开实施例相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开实施例的一些方面相一致的装置和方法的例子。
在本公开实施例使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本公开实施例。在本公开实施例和所附权利要求书中所使用的单数形式的“一种”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解，尽管在本公开实施例可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本公开实施例范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，如在此所使用的词语“如果”及“若”可以被解释成为“在……时”或“当……时”或“响应于确定”。
下面参考附图对本公开实施例所提供的定时器启动方法、装置、用户设备、网络侧设备及存储介质进行详细描述。
图1为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第一终端设备，如图1所示，该定时器启动方法可以包括以下步骤：
步骤101、接收第二终端设备通过SL发送的数据和/或信息。
需要说明的是，在本公开的一个实施例之中，终端设备可以是指向用户提供语音和/或数据连通性的设备。终端设备可以经RAN(Radio Access Network，无线接入网)与一个或多个核心网进行通信，终端设备可以是物联网终端，如传感器设备、移动电话(或称为“蜂窝”电话)和具有物联网终端的计算机，例如，可以是固定式、便携式、袖珍式、手持式、计算机内置的或者车载的装置。例如，站(Station，STA)、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、移动台(mobile)、 远程站(remote station)、接入点、远程终端(remoteterminal)、接入终端(access terminal)、用户装置(user terminal)或用户代理(useragent)。或者，终端设备也可以是无人飞行器的设备。或者，终端设备也可以是车载设备，比如，可以是具有无线通信功能的行车电脑，或者是外接行车电脑的无线终端。或者，终端设备也可以是路边设备，比如，可以是具有无线通信功能的路灯、信号灯或者其它路边设备等。
其中，在本公开的一个实施例之中，该第一终端设备可以为接收终端设备，该第二终端设备可以为发送终端设备。以及，第二终端设备可以是以组播、单播、广播中的任一种形式向第一终端设备发送数据和/或信息。
以及，在本公开的一个实施例之中，上述的数据和/或信息可以是通过SL信道中的PSSCH(Physical Sidelink Shared Channel，物理侧行共享信道)发送的。
以及需要说明的是，在本公开的一个实施例之中，上述的第二终端设备对于数据和/或信息的发送具体可以是该数据和/或信息的新传输(new transmission)，其中，新传输具体是指初次传输，即具体是指：针对某一数据和/或信息的初次传输。
步骤102、确定对数据和/或信息是否进行反馈。
其中，在本公开的一个实施例之中，上述的确定对数据和/或信息是否进行反馈可以包括：
步骤a、接收第二终端设备发送的SCI(sidelink control information，侧行链路控制信息)，该SCI可以用于指示第一终端设备是否需要针对接收到的数据和/或信息进行反馈。
其中，在本公开的一个实施例之中，上述的SCI可以是通过SL信道中的PSCCH(Physical Sidelink Control Channel,物理侧行控制信道)发送的。
步骤b、基于SCI的指示确定对数据和/或信息是否进行反馈。
以及，在本公开的另一个实施例之中，上述的确定对数据和/或信息是否进行反馈还可以包括：
根据接收的数据和/或信息对应的资源池是否配置了反馈资源来确定对数据和/或信息是否进行反馈。其中，若资源池配置了反馈资源则确定针对接收到的数据和/或信息进行反馈；若资源池未配置了反馈资源则确定针对接收到的数据和/或信息进行反馈。
步骤103、确定对数据和/或信息不反馈时，启动第一重传定时器。
其中，在本公开的一个实施例之中，针对于上述的数据和/或信息的新传输，终端设备在接收到数据和/或信息后，还需要对接收到的数据和/或信息进行解码，若解码成功则认为该数据和/或信息接收成功，若解码失败，则认为该数据和/或信息接收失败，此时需要启动第一重传定时器以重新传输该数据和/或信息。
以及，本公开实施例主要是针对“第一终端设备对接收到的新传输的数据和/或信息不进行反馈”这一情况，来提供一第一重传定时器的具体启动方法，其中，关于该第一重传定时器的具体启动方法会在后续实施例进行详细描述。
进一步地，需要说明的是，参考后续撰写内容可知，在本公开的一个实施例之中，启动重传定时器(如第一重传定时器或第二重传定时器或第三重传定时器)的方法可以包括如后续图2-图12任一所示的方法。其中，该方法可以是由基站或第二终端设备配置至第一终端设备的，同时，基站或第二终端设备还可以向第一终端设备配置每一方法是应用于进行反馈的情况下或者应用于不进行反馈的情况下。由此，第一终端设备可以基于基站或第二终端设备的配置来确定重传定时器的启动方法。
步骤104、在第一重传定时器运行期间，监听PSCCH。
其中，在本公开的一个实施例之中，通过在第一重传定时器运行期间，监听PSCCH，可以接收到第二终端设备重传的数据和/或信息，则可以确保重传成功率。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图2为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第一终端设备，如图2所示，该定时器启动方法可以包括以下步骤：
步骤201、接收第二终端设备通过SL发送的数据和/或信息。
步骤202、确定对数据和/或信息是否进行反馈。
步骤203、确定对数据和/或信息不反馈时，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一RTT(Round Trip Time，往返时延)定时器。
步骤204、确定第一RTT定时器超时，启动第一重传定时器。
步骤205、在第一重传定时器运行期间，监听PSCCH。
其中，关于步骤201-205的其他详细介绍可以参考上述实施例描述，本公开实施例在此不做赘述。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图3为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第一终端设备，如图3所示，该定时器启动方法可以包括以下步骤：
步骤301、接收第二终端设备通过SL发送的数据和/或信息。
步骤302、确定对数据和/或信息是否进行反馈。
步骤303、确定对数据和/或信息不反馈时，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一重传定时器。
步骤304、在第一重传定时器运行期间，监听PSCCH。
其中，关于步骤301-304的其他详细介绍可以参考上述实施例描述，本公开实施例在此不做赘述。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图4a为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第一终端设备，如图4a所示，该定时器启动方法可以包括以下步骤：
步骤401a、接收第二终端设备通过SL发送的数据和/或信息。
步骤402a、确定针对接收到的数据和/或信息是否进行反馈。
步骤403a、确定对数据和/或信息不反馈时，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一RTT定时器。
步骤404a、确定第一RTT定时器超时，启动第一重传定时器。
步骤405a、在第一重传定时器运行期间，监听PSCCH。
其中，关于步骤401a-405a的其他详细介绍可以参考上述实施例描述，本公开实施例在此不做赘述。
步骤406a、确定在第一重传定时器运行期间接收到数据和/或信息并成功解码，停止第一重传定时器。
其中，在本公开的一个实施例之中，若在第一重传定时器运行期间接收到数据和/或信息并成功解码，则说明该数据和/或信息被第一终端设备成功接收，此时可以停止第一重传定时器，以结束重传。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图4b为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第一终端设备，如图4b所示，该定时器启动方法可以包括以下步骤：
步骤401b、接收第二终端设备通过SL发送的数据和/或信息。
步骤402b、确定对数据和/或信息是否进行反馈。
步骤403b、确定对数据和/或信息不反馈时，在PSSCH资源位置之后的第一个时隙或PSCCH资源 位置之后的第一个时隙启动第一重传定时器。
步骤404b、在第一重传定时器运行期间，监听PSCCH。
步骤405b、确定在第一重传定时器运行期间接收到数据和/或信息并成功解码，停止第一重传定时器。
其中，关于步骤401b-405b的其他详细介绍可以参考上述实施例描述，本公开实施例在此不做赘述。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图5a为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第一终端设备，如图5a所示，该定时器启动方法可以包括以下步骤：
步骤501a、接收第二终端设备通过SL发送的数据和/或信息。
步骤502a、确定对数据和/或信息是否进行反馈。
步骤503a、确定对数据和/或信息不反馈时，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一RTT定时器。
步骤504a、确定第一RTT定时器超时，启动第一重传定时器。
步骤505a、在第一重传定时器运行期间，监听PSCCH。
其中，关于步骤501a-505a的其他详细介绍可以参考上述实施例描述，本公开实施例在此不做赘述。
步骤506a、确定在第一重传定时器运行期间未监听到PSCCH中的数据和/或信息，当第一重传定时器超时，启动第二RTT定时器。
步骤507a、确定第二RTT定时器超时，启动第二重传定时器。
步骤508a、在第二重传定时器运行期间，至少监听PSCCH。
其中，在本公开的一个实施例之中，若在第一重传定时器运行期间未监听到PSCCH中的数据和/或信息，即说明第一终端设备未接收到第二终端设备重传的数据和/或信息，基于此，为了进一步延长重传时间，避免传输失败，当第一重传定时器超时，启动第二RTT定时器，以及，确定第二RTT定时器超时，再重新启动第二重传定时器，并在第二重传定时器运行期间，继续监听PSCCH，以提高重传成功率。
其中，在本公开的一个实施例之中，该第二RTT定时器可以为RTT定时器。以及，在本公开的一个实施例之中，该第一RTT定时器与第二RTT定时器可以相同或不同，该第一重传定时器与第二重传定时器可以相同或不同。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图5b为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第一终端设备，如图5b所示，该定定时器启动方法可以包括以下步骤：
步骤501b、接收第二终端设备通过SL发送的数据和/或信息。
步骤502b、确定对数据和/或信息是否进行反馈。
步骤503b、确定对数据和/或信息不反馈时，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一重传定时器。
步骤504b、在第一重传定时器运行期间，监听PSCCH。
步骤505b、确定在第一重传定时器运行期间未监听到PSCCH中的数据和/或信息，当第一重传定时器超时，启动第二RTT定时器。
步骤506b、确定第二RTT定时器超时，启动第二重传定时器。
步骤507b、在第二重传定时器运行期间，监听PSCCH。
其中，关于步骤501b-507b的其他详细介绍可以参考上述实施例描述，本公开实施例在此不做赘述。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图6a为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第一终端设备，如图6a所示，该定时器启动方法可以包括以下步骤：
步骤601a、接收第二终端设备通过SL发送的数据和/或信息。
步骤602a、确定对数据和/或信息是否进行反馈。
步骤603a、确定对数据和/或信息不反馈时，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一RTT定时器。
步骤604a、确定第一RTT定时器超时，启动第一重传定时器。
步骤605a、在第一重传定时器运行期间，监听PSCCH。
步骤606a、确定在第一重传定时器运行期间未监听到PSCCH中的数据和/或信息，当第一重传定时器超时，启动第二RTT定时器。
步骤607a、确定第二RTT定时器超时，启动第二重传定时器。
步骤608a、在第二重传定时器运行期间，至少监听PSCCH。
其中，关于步骤601a-608a的其他详细介绍可以参考上述实施例描述，本公开实施例在此不做赘述。
步骤609a、确定在第二重传定时器运行期间接收到数据和/或信息并成功解码，停止第二重传定时器。
其中，在本公开的一个实施例之中，若在第二重传定时器运行期间接收到数据和/或信息并成功解码，则说明该数据和/或信息被第一终端设备成功接收，此时可以停止第二重传定时器，以结束重传。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图6b为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第一终端设备，如图6b所示，该定时器启动方法可以包括以下步骤：
步骤601b、接收第二终端设备通过SL发送的数据和/或信息。
步骤602b、确定对数据和/或信息是否进行反馈。
步骤603b、确定对数据和/或信息不反馈时，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一重传定时器。
步骤604b、在第一重传定时器运行期间，监听PSCCH。
步骤605b、确定在第一重传定时器运行期间未监听到PSCCH中的数据和/或信息，当第一重传定时器超时，启动第二RTT定时器。
步骤606b、确定第二RTT定时器超时，启动第二重传定时器。
步骤607b、在第二重传定时器运行期间，至少监听PSCCH。
步骤608b、确定在第二重传定时器运行期间接收到数据和/或信息并成功解码，停止第二重传定时器。
其中，关于步骤601b-608b的其他详细介绍可以参考上述实施例描述，本公开实施例在此不做赘述。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图7a为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第一终端设备，如图7a 所示，该定时器启动方法可以包括以下步骤：
步骤701a、接收第二终端设备通过SL发送的数据和/或信息。
步骤702a、确定对数据和/或信息是否进行反馈。
步骤703a、确定对数据和/或信息不反馈时，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一RTT定时器。
步骤704a、确定第一RTT定时器超时，启动第一重传定时器。
步骤705a、在第一重传定时器运行期间，监听PSCCH。
步骤706a、确定在第一重传定时器运行期间未监听到PSCCH中的数据和/或信息，当第一重传定时器超时，启动第二RTT定时器。
步骤707a、确定第二RTT定时器超时，启动第二重传定时器。
步骤708a、在第二重传定时器运行期间，至少监听PSCCH。
步骤709a、确定在第二重传定时器运行期间未监听到PSCCH中的数据和/或信息，当第二重传定时器超时，启动第二RTT定时器。
步骤710a、确定第二RTT定时器超时，启动第二重传定时器。
步骤711a、在第二重传定时器运行期间，至少监听PSCCH。
其中，在本公开的一个实施例之中，可以循环执行上述步骤709a-711a。
以及，关于步骤701a-711a的其他详细介绍可以参考上述实施例描述，本公开实施例在此不做赘述。综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图7b为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第一终端设备，如图7b所示，该定时器启动方法可以包括以下步骤：
步骤701b、接收第二终端设备通过SL发送的数据和/或信息。
步骤702b、确定对数据和/或信息是否进行反馈。
步骤703b、确定对数据和/或信息不反馈时，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一重传定时器。
步骤704b、在第一重传定时器运行期间，监听PSCCH。
步骤705b、确定在第一重传定时器运行期间未监听到PSCCH中的数据和/或信息，当第一重传定时器超时，启动第二RTT定时器。
步骤706b、确定第二RTT定时器超时，启动第二重传定时器。
步骤707b、在第二重传定时器运行期间，至少监听PSCCH。
步骤708b、确定在第二重传定时器运行期间未监听到PSCCH中的数据和/或信息，当第二重传定时器超时，启动第二RTT定时器。
步骤709b、确定第二RTT定时器超时，启动第二重传定时器。
步骤710b、在第二重传定时器运行期间，至少监听PSCCH。
其中，在本公开的一个实施例之中，可以循环执行上述步骤708b-步骤710b。
以及，关于步骤701b-710b的其他详细介绍可以参考上述实施例描述，本公开实施例在此不做赘述。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图8a为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第一终端设备，如图8a所示，该定时器启动方法可以包括以下步骤：
步骤801a、接收第二终端设备通过SL发送的数据和/或信息。
步骤802a、确定对数据和/或信息是否进行反馈。
步骤803a、确定对数据和/或信息不反馈时，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一RTT定时器。
步骤804a、确定第一RTT定时器超时，启动第一重传定时器。
步骤805a、在第一重传定时器运行期间，监听PSCCH。
其中，关于步骤801a-805a的其他详细介绍可以参考上述实施例描述，本公开实施例在此不做赘述。
步骤806a、确定在第一重传定时器运行期间未监听到PSCCH中的数据和/或信息，当第一重传定时器超时，启动第二RTT定时器。
步骤807a、确定第二RTT定时器超时，启动第二重传定时器。
步骤808a、在第二重传定时器运行期间，至少监听PSCCH。
步骤809a、确定在第二重传定时器运行期间未监听到PSCCH中的数据和/或信息，当第二重传定时器超时，启动第二RTT定时器。
步骤810a、确定第二RTT定时器超时，启动第二重传定时器。
步骤811a、在第二重传定时器运行期间，至少监听PSCCH。
步骤812a、对第二RTT定时器或第二重传定时器的启动次数进行计数。
步骤813a、当第二RTT定时器的启动次数或第二重传定时器的启动次数大于或等于第一阈值，停止启动第二RTT定时器或第二重传定时器。
其中，在本公开的一个实施例之中，该第一阈值可以是第二终端设备通过sidelink RRC(Radio Resource Control，无线资源控制)消息配置的，或者，也可以基站通过Uu RRC消息配置。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图8b为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第一终端设备，如图8b所示，该定时器启动方法可以包括以下步骤：
步骤801b、接收第二终端设备通过SL发送的数据和/或信息。
步骤802b、确定对数据和/或信息是否进行反馈。
步骤803b、确定对数据和/或信息不反馈时，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一重传定时器。
步骤804b、在第一重传定时器运行期间，监听PSCCH。
步骤805b、确定在第一重传定时器运行期间未监听到PSCCH中的数据和/或信息，当第一重传定时器超时，启动第二RTT定时器。
步骤806b、确定第二RTT定时器超时，启动第二重传定时器。
步骤807b、在第二重传定时器运行期间，至少监听PSCCH。
步骤808b、确定在第二重传定时器运行期间未监听到PSCCH中的数据和/或信息，当第二重传定时器超时，启动第二RTT定时器。
步骤809b、确定第二RTT定时器超时，启动第二重传定时器。
步骤810b、在第二重传定时器运行期间，至少监听PSCCH。
步骤811b、对第二RTT定时器或第二重传定时器的启动次数进行计数。
步骤812b、当第二RTT定时器的启动次数或第二重传定时器的启动次数大于或等于第一阈值，停止启动第二RTT定时器或第二重传定时器。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图9a为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第一终端设备，如图9a所示，该定时器启动方法可以包括以下步骤：
步骤901a、接收第二终端设备通过SL发送的数据和/或信息。
步骤902a、确定对数据和/或信息是否进行反馈。
步骤903a、确定对数据和/或信息不反馈时，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一RTT定时器。
步骤904a、确定第一RTT定时器超时，启动第一重传定时器。
步骤905a、在第一重传定时器运行期间，监听PSCCH。
步骤906a、确定在第一重传定时器运行期间未监听到PSCCH中的数据和/或信息，当第一重传定时器超时，启动第三重传定时器。
步骤907a、在第三重传定时器运行期间，至少监听PSCCH。
其中，在本公开的一个实施例之中，该第一重传定时器与第三重传定时器可以相同或不同。
以及，在本公开的一个实施例之中，若在第一重传定时器运行期间未监听到PSCCH中的数据和/或信息，即说明第一终端设备侧未接收到第二终端设备重传的数据和/或信息，基于此，为了进一步延长重传时间，避免传输失败，当第一重传定时器超时，启动第三重传定时器，并在第三重传定时器运行期间，继续至少监听PSCCH。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图9b为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第一终端设备，如图9b所示，该定时器启动方法可以包括以下步骤：
步骤901b、接收第二终端设备通过SL发送的数据和/或信息。
步骤902b、确定对数据和/或信息是否进行反馈。
步骤903b、确定对数据和/或信息不反馈时，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一重传定时器。
步骤904b、在第一重传定时器运行期间，监听PSCCH。
步骤905b、确定在第一重传定时器运行期间未监听到PSCCH中的数据和/或信息，当第一重传定时器超时，启动第三重传定时器。
步骤906b、在第三重传定时器运行期间，至少监听PSCCH。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图10a为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第一终端设备，如图10a所示，该定时器启动方法可以包括以下步骤：
步骤1001a、接收第二终端设备通过SL发送的数据和/或信息。
步骤1002a、确定对数据和/或信息是否进行反馈。
步骤1003a、确定对数据和/或信息不反馈时，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一RTT定时器。
步骤1004a、确定第一RTT定时器超时，启动第一重传定时器。
步骤1005a、在第一重传定时器运行期间，监听PSCCH。
步骤1006a、确定在第一重传定时器运行期间未监听到PSCCH中的数据和/或信息，当第一重传定时器超时，启动第三重传定时器。
步骤1007a、在第三重传定时器运行期间，至少监听PSCCH。
步骤1008a、确定在第三重传定时器运行期间接收到数据和/或信息并成功解码，停止第三重传定时器。
其中，在本公开的一个实施例之中，若在第三重传定时器运行期间接收到数据和/或信息并成功解码，则说明该数据和/或信息被第一终端设备成功接收，此时可以停止第三重传定时器，以结束重传。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图10b为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第一终端设备，如图10b所示，该定时器启动方法可以包括以下步骤：
步骤1001b、接收第二终端设备通过SL发送的数据和/或信息。
步骤1002b、确定对数据和/或信息是否进行反馈。
步骤1003b、确定对数据和/或信息不反馈时，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一重传定时器。
步骤1004b、在第一重传定时器运行期间，监听PSCCH。
步骤1005b、确定在第一重传定时器运行期间未监听到PSCCH中的数据和/或信息，当第一重传定时器超时，启动第三重传定时器。
步骤1006b、在第三重传定时器运行期间，至少监听PSCCH。
步骤1007b、确定在第三重传定时器运行期间接收到数据和/或信息并成功解码，停止第三重传定时器。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图11a为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第一终端设备，如图11a所示，该定时器启动方法可以包括以下步骤：
步骤1101a、接收第二终端设备通过SL发送的数据和/或信息。
步骤1102a、确定对数据和/或信息是否进行反馈。
步骤1103a、确定对数据和/或信息不反馈时，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一RTT定时器。
步骤1104a、确定第一RTT定时器超时，启动第一重传定时器。
步骤1105a、在第一重传定时器运行期间，监听PSCCH。
步骤1106a、确定在第一重传定时器运行期间未监听到PSCCH中的数据和/或信息，当第一重传定时器超时，启动第三重传定时器。
步骤1107a、在第三重传定时器运行期间，至少监听PSCCH。
步骤1108a、确定在第三重传定时器运行期间未监听到PSCCH中的数据和/或信息，当第三重传定时器超时，启动第三重传定时器。
步骤1109a、在第三重传定时器运行期间，至少监听PSCCH。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图11b为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第一终端设备，如图11b所示，该定时器启动方法可以包括以下步骤：
步骤1101b、接收第二终端设备通过SL发送的数据和/或信息。
步骤1102b、确定对数据和/或信息是否进行反馈。
步骤1103b、确定对数据和/或信息不反馈时，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一重传定时器。
步骤1104b、在第一重传定时器运行期间，监听PSCCH。
步骤1105b、确定在第一重传定时器运行期间未监听到PSCCH中的数据和/或信息，当第一重传定时器超时，启动第三重传定时器。
步骤1106b、在第三重传定时器运行期间，至少监听PSCCH。
步骤1107b、确定在第三重传定时器运行期间未监听到PSCCH中的数据和/或信息，当第三重传定时器超时，启动第三重传定时器；
步骤1108b、在第三重传定时器运行期间，至少监听PSCCH。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图12a为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第一终端设备，如图12a所示，该定时器启动方法可以包括以下步骤：
步骤1201a、接收第二终端设备通过SL发送的数据和/或信息。
步骤1202a、确定对数据和/或信息是否进行反馈。
步骤1203a、确定对数据和/或信息不反馈时，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一RTT定时器。
步骤1204a、确定第一RTT定时器超时，启动第一重传定时器。
步骤1205a、在第一重传定时器运行期间，监听PSCCH。
步骤1206a、确定在第一重传定时器运行期间未监听到PSCCH中的数据和/或信息，当第一重传定时器超时，启动第三重传定时器。
步骤1207a、在第三重传定时器运行期间，至少监听PSCCH。
步骤1208a、确定在第三重传定时器运行期间未监听到PSCCH中的数据和/或信息，当第三重传定时器超时，启动第三重传定时器。
步骤1209a、在第三重传定时器运行期间，至少监听PSCCH。
步骤1210a、对第三重传定时器的启动次数进行计数。
步骤1211a、当第三重传定时器的启动次数大于或等于第二阈值，停止启动第三重传定时器。
在本公开的一个实施例之中，该第二阈值可以是第二终端设备通过sidelink RRC消息配置的，或者，也可以基站通过Uu RRC消息配置。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图12b为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第一终端设备，如图12b所示，该定时器启动方法可以包括以下步骤：
步骤1201b、接收第二终端设备通过SL发送的数据和/或信息。
步骤1202b、确定对数据和/或信息是否进行反馈。
步骤1203b、确定对数据和/或信息不反馈时，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一重传定时器。
步骤1204b、在第一重传定时器运行期间，监听PSCCH。
步骤1205b、确定在第一重传定时器运行期间未监听到PSCCH中的数据和/或信息，当第一重传定时器超时，启动第三重传定时器。
步骤1206b、在第三重传定时器运行期间，至少监听PSCCH。
步骤1207b、确定在第三重传定时器运行期间未监听到PSCCH中的数据和/或信息，当第三重传定时器超时，启动第三重传定时器。
步骤1208b、在第三重传定时器运行期间，至少监听PSCCH。
步骤1209b、对第三重传定时器的启动次数进行计数。
步骤1210b、当第三重传定时器的启动次数大于或等于第二阈值，停止启动第三重传定时器。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图13为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第二终端设备，如图13所示，该定时器启动方法可以包括以下步骤：
步骤1301、通过SL向第一终端设备发送数据和/或信息。
步骤1302、确定第一终端设备对接收到的数据和/或信息是否进行反馈。
步骤1303、确定第一终端设备对接收到的数据和/或信息不反馈，启动第一重传定时器。
步骤1304、在第一重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图14为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第二终端设备，如图14所示，该定时器启动方法可以包括以下步骤：
步骤1401、通过SL向第一终端设备发送数据和/或信息。
步骤1402、确定第一终端设备对接收到的数据和/或信息是否进行反馈。
步骤1403、确定第一终端设备对接收到的数据和/或信息不反馈，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙先启动第一RTT定时器。
步骤1404、确定第一RTT定时器超时，启动第一重传定时器。
步骤1405、在第一重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图15为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第二终端设备，如图15所示，该定时器启动方法可以包括以下步骤：
步骤1501、通过SL向第一终端设备发送数据和/或信息。
步骤1502、确定第一终端设备对接收到的数据和/或信息是否进行反馈。
步骤1503、确定第一终端设备对接收到的数据和/或信息不反馈，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一重传定时器。
步骤1504、在第一重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图16a为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第二终端设备，如图16a所示，该定时器启动方法可以包括以下步骤：
步骤1601a、通过SL向第一终端设备发送数据和/或信息。
步骤1602a、确定第一终端设备对接收到的数据和/或信息是否进行反馈。
步骤1603a、确定第一终端设备对接收到的数据和/或信息不反馈，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙先启动第一RTT定时器。
步骤1604a、确定第一RTT定时器超时，启动第一重传定时器。
步骤1605a、在第一重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤1606a、停止第一重传定时器。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图16b为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第二终端设备，如图16b所示，该定时器启动方法可以包括以下步骤：
步骤1601b、通过SL向第一终端设备发送数据和/或信息。
步骤1602b、确定第一终端设备对接收到的数据和/或信息是否进行反馈。
步骤1603b、确定第一终端设备对接收到的数据和/或信息不反馈，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一重传定时器。
步骤1604b、在第一重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤1605b、停止第一重传定时器。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图17a为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第二终端设备，如图17a所示，该定时器启动方法可以包括以下步骤：
步骤1701a、通过SL向第一终端设备发送数据和/或信息。
步骤1702a、确定第一终端设备对接收到的数据和/或信息是否进行反馈。
步骤1703a、确定第一终端设备对接收到的数据和/或信息不反馈，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙先启动第一RTT定时器。
步骤1704a、确定第一RTT定时器超时，启动第一重传定时器。
步骤1705a、在第一重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤1706a、确定第一重传定时器超时，启动第二RTT定时器；
步骤1707a、确定第二RTT定时器超时，启动第二重传定时器；
步骤1708a、在第二重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图17b为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第二终端设备，如图17b所示，该定时器启动方法可以包括以下步骤：
步骤1701b、通过SL向第一终端设备发送数据和/或信息。
步骤1702b、确定第一终端设备对接收到的数据和/或信息是否进行反馈。
步骤1703b、确定第一终端设备对接收到的数据和/或信息不反馈，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一重传定时器。
步骤1704b、在第一重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤1705b、确定第一重传定时器超时，启动第二RTT定时器；
步骤1706b、确定第二RTT定时器超时，启动第二重传定时器；
步骤1707b、在第二重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图18a为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第二终端设备，如图18a所示，该定时器启动方法可以包括以下步骤：
步骤1801a、通过SL向第一终端设备发送数据和/或信息。
步骤1802a、确定第一终端设备对接收到的数据和/或信息是否进行反馈。
步骤1803a、确定第一终端设备对接收到的数据和/或信息不反馈，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙先启动第一RTT定时器。
步骤1804a、确定第一RTT定时器超时，启动第一重传定时器。
步骤1805a、在第一重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤1806a、确定第一重传定时器超时，启动第二RTT定时器。
步骤1807a、确定第二RTT定时器超时，启动第二重传定时器。
步骤1808a、在第二重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤1809a、停止第二重传定时器。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图18b为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第二终端设备，如图18b所示，该定时器启动方法可以包括以下步骤：
步骤1801b、通过SL向第一终端设备发送数据和/或信息。
步骤1802b、确定第一终端设备对接收到的数据和/或信息是否进行反馈。
步骤1803b、确定第一终端设备对接收到的数据和/或信息不反馈，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一重传定时器。
步骤1804b、在第一重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤1805b、确定第一重传定时器超时，启动第二RTT定时器。
步骤1806b、确定第二RTT定时器超时，启动第二重传定时器。
步骤1807b、在第二重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤1808b、停止第二重传定时器。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图19a为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第二终端设备，如图19a所示，该定时器启动方法可以包括以下步骤：
步骤1901a、通过SL向第一终端设备发送数据和/或信息。
步骤1902a、确定第一终端设备对接收到的数据和/或信息是否进行反馈。
步骤1903a、确定第一终端设备对接收到的数据和/或信息不反馈，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙先启动第一RTT定时器。
步骤1904a、确定第一RTT定时器超时，启动第一重传定时器。
步骤1905a、在第一重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤1906a、确定第一重传定时器超时，启动第二RTT定时器；
步骤1907a、确定第二RTT定时器超时，启动第二重传定时器；
步骤1908a、在第二重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤1909a、确定第二重传定时器超时，启动第二RTT定时器。
步骤1910a、确定第二RTT定时器超时，启动第二重传定时器。
步骤1911a、在第二重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
综上所述，在本公开实施例提供的定时器启动方法，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图19b为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第二终端设备，如图19b所示，该定时器启动方法可以包括以下步骤：
步骤1901b、通过SL向第一终端设备发送数据和/或信息。
步骤1902b、确定第一终端设备对接收到的数据和/或信息是否进行反馈。
步骤1903b、确定第一终端设备对接收到的数据和/或信息不反馈，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一重传定时器。
步骤1904b、在第一重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤1905b、确定第一重传定时器超时，启动第二RTT定时器。
步骤1906b、确定第二RTT定时器超时，启动第二重传定时器。
步骤1907b、在第二重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤1908b、确定第二重传定时器超时，启动第二RTT定时器。
步骤1909b、确定第二RTT定时器超时，启动第二重传定时器。
步骤1910b、在第二重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图20a为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第二终端设备，如图20a所示，该定时器启动方法可以包括以下步骤：
步骤2001a、通过SL向第一终端设备发送数据和/或信息。
步骤2002a、确定第一终端设备对接收到的数据和/或信息是否进行反馈。
步骤2003a、确定第一终端设备对接收到的数据和/或信息不反馈，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙先启动第一RTT定时器。
步骤2004a、确定第一RTT定时器超时，启动第一重传定时器。
步骤2005a、在第一重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤2006a、确定第一重传定时器超时，启动第二RTT定时器。
步骤2007a、确定第二RTT定时器超时，启动第二重传定时器。
步骤2008a、在第二重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤2009a、确定第二重传定时器超时，启动第二RTT定时器。
步骤2010a、确定第二RTT定时器超时，启动第二重传定时器。
步骤2011a、在第二重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤2012a、对第二RTT定时器或第二重传定时器的启动次数进行计数。
步骤2013a、当第二RTT定时器的启动次数或第二重传定时器的启动次数大于或等于第一阈值，停止启动第二RTT定时器或第二重传定时器。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图20b为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第二终端设备，如图20b所示，该定时器启动方法可以包括以下步骤：
步骤2001b、通过SL向第一终端设备发送数据和/或信息。
步骤2002b、确定第一终端设备对接收到的数据和/或信息是否进行反馈。
步骤2003b、确定第一终端设备对接收到的数据和/或信息不反馈，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一重传定时器。
步骤2004b、在第一重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤2005b、确定第一重传定时器超时，启动第二RTT定时器。
步骤2006b、确定第二RTT定时器超时，启动第二重传定时器。
步骤2007b、在第二重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤2008b、确定第二重传定时器超时，启动第二RTT定时器。
步骤2009b、确定第二RTT定时器超时，启动第二重传定时器。
步骤2010b、在第二重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤2011b、对第二RTT定时器或第二重传定时器的启动次数进行计数。
步骤2012b、当第二RTT定时器的启动次数或第二重传定时器的启动次数大于或等于第一阈值，停止启动第二RTT定时器或第二重传定时器。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图21a为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第二终端设备，如图21a所示，该定时器启动方法可以包括以下步骤：
步骤2101a、通过SL向第一终端设备发送数据和/或信息。
步骤2102a、确定第一终端设备对接收到的数据和/或信息是否进行反馈。
步骤2103a、确定第一终端设备对接收到的数据和/或信息不反馈，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙先启动第一RTT定时器。
步骤2104a、确定第一RTT定时器超时，启动第一重传定时器。
步骤2105a、在第一重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤2106a、当第一重传定时器超时，启动第三重传定时器。
步骤2107a、在第三重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤2105a、当第一重传定时器超时，启动第三重传定时器，并在第三重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图21b为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第二终端设备，如图21b所示，该定时器启动方法可以包括以下步骤：
步骤2101b、通过SL向第一终端设备发送数据和/或信息。
步骤2102b、确定第一终端设备对接收到的数据和/或信息是否进行反馈。
步骤2103b、确定第一终端设备对接收到的数据和/或信息不反馈，在PSSCH资源位置之后的第一 个时隙或PSCCH资源位置之后的第一个时隙启动第一重传定时器。
步骤2104b、在第一重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤2105b、当第一重传定时器超时，启动第三重传定时器。
步骤2106b、在第三重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图22a为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第二终端设备，如图22a所示，该定时器启动方法可以包括以下步骤：
步骤2201a、通过SL向第一终端设备发送数据和/或信息。
步骤2202a、确定第一终端设备对接收到的数据和/或信息是否进行反馈。
步骤2203a、确定第一终端设备对接收到的数据和/或信息不反馈，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙先启动第一RTT定时器。
步骤2204a、确定第一RTT定时器超时，启动第一重传定时器。
步骤2205a、在第一重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤2206a、当第一重传定时器超时，启动第三重传定时器。
步骤2207a、在第三重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤2208a、停止第三重传定时器。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图22b为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第二终端设备，如图22b所示，该定时器启动方法可以包括以下步骤：
步骤2201b、通过SL向第一终端设备发送数据和/或信息。
步骤2202b、确定第一终端设备对接收到的数据和/或信息是否进行反馈。
步骤2203b、确定第一终端设备对接收到的数据和/或信息不反馈，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一重传定时器。
步骤2204b、在第一重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤2205b、当第一重传定时器超时，启动第三重传定时器。
步骤2206b、在第三重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤2207b、停止第三重传定时器。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图23a为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第二终端设备，如图23a所示，该定时器启动方法可以包括以下步骤：
步骤2301a、通过SL向第一终端设备发送数据和/或信息。
步骤2302a、确定第一终端设备对接收到的数据和/或信息是否进行反馈。
步骤2303a、确定第一终端设备对接收到的数据和/或信息不反馈，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙先启动第一RTT定时器。
步骤2304a、确定第一RTT定时器超时，启动第一重传定时器。
步骤2305a、在第一重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤2306a、当第一重传定时器超时，启动第三重传定时器。
步骤2307a、在第三重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤2308a、当第三重传定时器超时，启动第三重传定时器。
步骤2309a、在第三重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图23b为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第二终端设备，如图23b所示，该定时器启动方法可以包括以下步骤：
步骤2301b、通过SL向第一终端设备发送数据和/或信息。
步骤2302b、确定第一终端设备对接收到的数据和/或信息是否进行反馈。
步骤2303b、确定第一终端设备对接收到的数据和/或信息不反馈，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一重传定时器。
步骤2304b、在第一重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤2305b、当第一重传定时器超时，启动第三重传定时器。
步骤2306b、在第三重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤2307b、当第三重传定时器超时，启动第三重传定时器。
步骤2308b、在第三重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图24a为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第二终端设备，如图24a所示，该定时器启动方法可以包括以下步骤：
步骤2401a、通过SL向第一终端设备发送数据和/或信息。
步骤2402a、确定第一终端设备对接收到的数据和/或信息是否进行反馈。
步骤2403a、确定第一终端设备对接收到的数据和/或信息不反馈，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙先启动第一RTT定时器。
步骤2404a、确定第一RTT定时器超时，启动第一重传定时器。
步骤2405a、在第一重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤2406a、当第一重传定时器超时，启动第三重传定时器。
步骤2407a、在第三重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤2408a、当第三重传定时器超时，启动第三重传定时器。
步骤2409a、在第三重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤2410a、对第三重传定时器的启动次数进行计数。
步骤2411a、当第三重传定时器的启动次数大于或等于第二阈值，停止启动第三重传定时器。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图24b为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第二终端设备，如图24b所示，该定时器启动方法可以包括以下步骤：
步骤2401b、通过SL向第一终端设备发送数据和/或信息。
步骤2402b、确定第一终端设备对接收到的数据和/或信息是否进行反馈。
步骤2403b、确定第一终端设备对接收到的数据和/或信息不反馈，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一重传定时器。
步骤2404b、在第一重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤2405b、当第一重传定时器超时，启动第三重传定时器。
步骤2406b、在第三重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤2407b、当第三重传定时器超时，启动第三重传定时器。
步骤2408b、在第三重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
步骤2409b、对第三重传定时器的启动次数进行计数。
步骤2410b、当第三重传定时器的启动次数大于或等于第二阈值，停止启动第三重传定时器。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图25为本公开实施例所提供的一种定时器启动方法的流程示意图，应用于第二终端设备，如图25所示，该定时器启动方法可以包括以下步骤：
步骤2501、向第一终端设备发送SCI，该SCI用于指示第一终端设备是否需要对接收到的数据和/或信息进行反馈。
步骤2502、通过SL向第一终端设备发送数据和/或信息。
步骤2503、确定第一终端设备对接收到的数据和/或信息是否进行反馈。
步骤2504、确定第一终端设备对接收到的数据和/或信息不反馈，启动第一重传定时器。
步骤2505、在第一重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
综上所述，在本公开实施例提供的定时器启动方法之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
图26为本公开实施例所提供的一种定时器启动装置的结构示意图，如图26所示，装置可以包括：
接收模块2601，用于接收第二终端设备通过SL发送的数据和/或信息；
处理模块2602，用于确定对所述数据和/或信息是否进行反馈；以及用于确定对所述数据和/或信息不反馈时，启动第一重传定时器；
所述接收模块2601，还用于在所述第一重传定时器运行期间，监听物理侧行控制信道PSCCH。
综上所述，在本公开实施例提供的定时器启动装置之中，第一终端设备会接收第二终端设备通过SL发送的数据和/或信息，并确定对数据和/或信息是否进行反馈，以及当确定对数据和/或信息不反馈时，启动第一重传定时器，在第一重传定时器运行期间，监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
在本公开一个实施例之中，所述处理模块还用于：
确定对数据和/或信息不反馈时，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一RTT定时器；
确定第一RTT定时器超时，启动第一重传定时器。
在本公开一个实施例之中，所述第一RTT定时器为往返时间RTT定时器。
在本公开一个实施例之中，所述处理模块还用于：
确定对数据和/或信息不反馈时，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一重传定时器。
在本公开一个实施例之中，所述装置还用于：
确定在第一重传定时器运行期间接收到数据和/或信息并成功解码，停止第一重传定时器。
在本公开一个实施例之中，所述装置还用于：
确定在第一重传定时器运行期间未监听到PSCCH中的数据和/或信息，当第一重传定时器超时，启动第二RTT定时器；
确定第二RTT定时器超时，启动第二重传定时器；
在第二重传定时器运行期间，至少监听PSCCH。
在本公开一个实施例之中，所述装置还用于：
确定在第二重传定时器运行期间接收到数据和/或信息并成功解码，停止第二重传定时器。
在本公开一个实施例之中，所述装置还用于：
确定在第二重传定时器运行期间未监听到PSCCH中的数据和/或信息，当第二重传定时器超时，启动第二RTT定时器；
确定第二RTT定时器超时，启动第二重传定时器；
在第二重传定时器运行期间，至少监听PSCCH。
在本公开一个实施例之中，所述装置还用于：
对第二RTT定时器或第二重传定时器的启动次数进行计数；
当第二RTT定时器的启动次数或第二重传定时器的启动次数大于或等于第一阈值，停止启动第二RTT定时器或第二重传定时器。
在本公开一个实施例之中，所述装置还用于：
确定在第三重传定时器运行期间接收到数据和/或信息并成功解码，停止第三重传定时器。
在本公开一个实施例之中，所述装置还用于：
确定在第三重传定时器运行期间未监听到PSCCH中的数据和/或信息，当第三重传定时器超时，启动第三重传定时器；
在第三重传定时器运行期间，至少监听PSCCH。
在本公开一个实施例之中，所述装置还用于：
对第三重传定时器的启动次数进行计数。
当第三重传定时器的启动次数大于或等于第二阈值，停止启动第三重传定时器。
在本公开一个实施例之中，所述确定模块还用于：
接收第二终端设备发送的侧行控制信息SCI，SCI用于指示第一终端设备是否需要对接收到的数据和/或信息进行反馈；
基于SCI的指示确定对接收到的数据和/或信息是否进行反馈。
在本公开一个实施例之中，所述确定模块还用于：
根据接收的数据和/或信息对应的资源池是否配置了反馈资源来确定针对接收到的数据和/或信息是否进行反馈。
在本公开一个实施例之中，所述确定模块还用于：
根据接收的数据和/或信息对应的资源池是否配置了反馈资源来确定对数据和/或信息是否进行反馈。
图27为本公开实施例所提供的一种定时器启动装置的结构示意图，如图27所示，装置可以包括：
发送模块2701，用于通过SL向第一终端设备发送数据和/或信息；
处理模块2702，用于确定所述第一终端设备对接收到的数据和/或信息是否进行反馈；以及用于确定所述第一终端设备对接收到的数据和/或信息不反馈，启动第一重传定时器；
所述发送模块2701，还用于在所述第一重传定时器运行期间，通过PSCCH向所述第一终端设备发送数据和/或信息。
综上所述，在本公开实施例提供的定时器启动装置之中，第一终端设备会接收第二终端设备对一数据和/或信息的新传输，并确定针对接收到的数据和/或信息是否进行反馈，以及当确定针对接收到的数据和/或信息不进行反馈，启动第一重传定时器，并在第一重传定时器运行期间，至少监听PSCCH。由此可知，本公开实施例针对于第一终端设备不进行反馈这一情况，提供了一种定时器启动方法。
在本公开一个实施例之中，所述处理模块还用于：
确定第一终端设备对接收到的数据和/或信息不反馈，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙先启动第一RTT定时器；
确定第一RTT定时器超时，启动第一重传定时器。
在本公开一个实施例之中，所述第一RTT定时器为往返时间RTT定时器。
在本公开一个实施例之中，所述处理模块还用于：
确定第一终端设备对接收到的数据和/或信息不反馈，在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一重传定时器。
在本公开一个实施例之中，所述装置还用于：
停止所述第一重传定时器。
在本公开一个实施例之中，所述装置还用于：
确定第一重传定时器超时，启动第二RTT定时器；
确定第二RTT定时器超时，启动第二重传定时器；
在第二重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
在本公开一个实施例之中，所述装置还用于：
停止所述第二重传定时器。
在本公开一个实施例之中，所述装置还用于：
确定第二重传定时器超时，启动第二RTT定时器；
确定第二RTT定时器超时，启动第二重传定时器；
在第二重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
在本公开一个实施例之中，所述装置还用于：
对第二RTT定时器或第二重传定时器的启动次数进行计数。
当第二RTT定时器的启动次数或第二重传定时器的启动次数大于或等于第一阈值，停止启动第二RTT定时器或第二重传定时器。
在本公开一个实施例之中，所述装置还用于：
当第一重传定时器超时，启动第三重传定时器；
在第三重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
在本公开一个实施例之中，所述装置还用于：
停止所述第三重传定时器。
在本公开一个实施例之中，所述装置还用于：
当第三重传定时器超时，启动第三重传定时器；
在第三重传定时器运行期间，通过PSCCH向第一终端设备发送数据和/或信息。
在本公开一个实施例之中，所述装置还用于：
对第三重传定时器的启动次数进行计数；
当第三重传定时器的启动次数大于或等于第二阈值，停止启动第三重传定时器。
在本公开一个实施例之中，所述装置还用于：
向第一终端设备发送SCI，SCI用于指示第一终端设备是否需要对接收到的数据和/或信息进行反馈。图28是本公开一个实施例所提供的一种用户设备终端设备2800的框图。例如，终端设备2800可以是移动电话，计算机，数字广播终端设备，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图28，终端设备2800可以包括以下至少一个组件：处理组件2802，存储器2804，电源组件2806，多媒体组件2808，音频组件2810，输入/输出(I/O)的接口2812，传感器组件2813，以及通信组件2816。
处理组件2802通常控制终端设备2800的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件2802可以包括至少一个处理器2820来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件2802可以包括至少一个模块，便于处理组件2802和其他组件之 间的交互。例如，处理组件2802可以包括多媒体模块，以方便多媒体组件2808和处理组件2802之间的交互。
存储器2804被配置为存储各种类型的数据以支持在终端设备2800的操作。这些数据的示例包括用于在终端设备2800上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器2804可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电源组件2806为终端设备2800的各种组件提供电力。电源组件2806可以包括电源管理系统，至少一个电源，及其他与为终端设备2800生成、管理和分配电力相关联的组件。
多媒体组件2808包括在所述终端设备2800和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括至少一个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的唤醒时间和压力。在一些实施例中，多媒体组件2808包括一个前置摄像头和/或后置摄像头。当终端设备2800处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件2810被配置为输出和/或输入音频信号。例如，音频组件2810包括一个麦克风(MIC)，当终端设备2800处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器2804或经由通信组件2816发送。在一些实施例中，音频组件2810还包括一个扬声器，用于输出音频信号。
I/O接口2812为处理组件2802和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件2813包括至少一个传感器，用于为终端设备2800提供各个方面的状态评估。例如，传感器组件2813可以检测到设备2800的打开/关闭状态，组件的相对定位，例如所述组件为终端设备2800的显示器和小键盘，传感器组件2813还可以检测终端设备2800或终端设备2800一个组件的位置改变，用户与终端设备2800接触的存在或不存在，终端设备2800方位或加速/减速和终端设备2800的温度变化。传感器组件2813可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件2813还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件2813还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件2816被配置为便于终端设备2800和其他设备之间有线或无线方式的通信。终端设备2800可以接入基于通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件2816经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件2816还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，终端设备2800可以被至少一个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
图29是本公开实施例所提供的一种网络侧设备2900的框图。例如，网络侧设备2900可以被提供为一网络侧设备。参照图29，网络侧设备2900包括处理组件2911，其进一步包括至少一个处理器，以及由存储器2932所代表的存储器资源，用于存储可由处理组件2922的执行的指令，例如应用程序。存储器2932中存储的应用程序可以包括一个或一个以上的每一个对应于一组指令的模块。此外，处理组件2910被配置为执行指令，以执行上述方法前述应用在所述网络侧设备的任意方法，例如，如图1所示方法。
网络侧设备2900还可以包括一个电源组件2926被配置为执行网络侧设备2900的电源管理，一个 有线或无线网络接口2950被配置为将网络侧设备2900连接到网络，和一个输入输出(I/O)接口2958。网络侧设备2900可以操作基于存储在存储器2932的操作系统，例如Windows Server TM，Mac OS XTM，Unix TM,Linux TM，Free BSDTM或类似。
上述本公开提供的实施例中，分别从网络侧设备、终端设备的角度对本公开实施例提供的方法进行了介绍。为了实现上述本公开实施例提供的方法中的各功能，网络侧设备和终端设备可以包括硬件结构、软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能可以以硬件结构、软件模块、或者硬件结构加软件模块的方式来执行。
上述本公开提供的实施例中，分别从网络侧设备、终端设备的角度对本公开实施例提供的方法进行了介绍。为了实现上述本公开实施例提供的方法中的各功能，网络侧设备和终端设备可以包括硬件结构、软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能可以以硬件结构、软件模块、或者硬件结构加软件模块的方式来执行。
本公开实施例提供的一种通信装置。通信装置可包括收发模块和处理模块。收发模块可包括发送模块和/或接收模块，发送模块用于实现发送功能，接收模块用于实现接收功能，收发模块可以实现发送功能和/或接收功能。
通信装置可以是终端设备(如前述方法实施例中的终端设备)，也可以是终端设备中的装置，还可以是能够与终端设备匹配使用的装置。或者，通信装置可以是网络设备，也可以是网络设备中的装置，还可以是能够与网络设备匹配使用的装置。
本公开实施例提供的另一种通信装置。通信装置可以是网络设备，也可以是终端设备(如前述方法实施例中的终端设备)，也可以是支持网络设备实现上述方法的芯片、芯片系统、或处理器等，还可以是支持终端设备实现上述方法的芯片、芯片系统、或处理器等。该装置可用于实现上述方法实施例中描述的方法，具体可以参见上述方法实施例中的说明。
通信装置可以包括一个或多个处理器。处理器可以是通用处理器或者专用处理器等。例如可以是基带处理器或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信装置(如，网络侧设备、基带芯片，终端设备、终端设备芯片，DU或CU等)进行控制，执行计算机程序，处理计算机程序的数据。
可选的，通信装置中还可以包括一个或多个存储器，其上可以存有计算机程序，处理器执行所述计算机程序，以使得通信装置执行上述方法实施例中描述的方法。可选的，所述存储器中还可以存储有数据。通信装置和存储器可以单独设置，也可以集成在一起。
可选的，通信装置还可以包括收发器、天线。收发器可以称为收发单元、收发机、或收发电路等，用于实现收发功能。收发器可以包括接收器和发送器，接收器可以称为接收机或接收电路等，用于实现接收功能；发送器可以称为发送机或发送电路等，用于实现发送功能。
可选的，通信装置中还可以包括一个或多个接口电路。接口电路用于接收代码指令并传输至处理器。处理器运行所述代码指令以使通信装置执行上述方法实施例中描述的方法。
通信装置为终端设备(如前述方法实施例中的终端设备)：处理器用于执行图1-图4任一所示的方法。
通信装置为网络设备：收发器用于执行图5-图7任一所示的方法。
在一种实现方式中，处理器中可以包括用于实现接收和发送功能的收发器。例如该收发器可以是收发电路，或者是接口，或者是接口电路。用于实现接收和发送功能的收发电路、接口或接口电路可以是分开的，也可以集成在一起。上述收发电路、接口或接口电路可以用于代码/数据的读写，或者，上述收发电路、接口或接口电路可以用于信号的传输或传递。
在一种实现方式中，处理器可以存有计算机程序，计算机程序在处理器上运行，可使得通信装置执行上述方法实施例中描述的方法。计算机程序可能固化在处理器中，该种情况下，处理器可能由硬件实现。
在一种实现方式中，通信装置可以包括电路，所述电路可以实现前述方法实施例中发送或接收或者通信的功能。本公开中描述的处理器和收发器可实现在集成电路(integrated circuit，IC)、模拟IC、 射频集成电路RFIC、混合信号IC、专用集成电路(application specific integrated circuit，ASIC)、印刷电路板(printed circuit board，PCB)、电子设备等上。该处理器和收发器也可以用各种IC工艺技术来制造，例如互补金属氧化物半导体(complementary metal oxide semiconductor，CMOS)、N型金属氧化物半导体(nMetal-oxide-semiconductor，NMOS)、P型金属氧化物半导体(positive channel metal oxide semiconductor，PMOS)、双极结型晶体管(bipolar junction transistor，BJT)、双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。
以上实施例描述中的通信装置可以是网络设备或者终端设备(如前述方法实施例中的终端设备)，但本公开中描述的通信装置的范围并不限于此，而且通信装置的结构可以不受的限制。通信装置可以是独立的设备或者可以是较大设备的一部分。例如所述通信装置可以是：
(1)独立的集成电路IC，或芯片，或，芯片系统或子系统；
(2)具有一个或多个IC的集合，可选的，该IC集合也可以包括用于存储数据，计算机程序的存储部件；
(3)ASIC，例如调制解调器(Modem)；
(4)可嵌入在其他设备内的模块；
(5)接收机、终端设备、智能终端设备、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络设备、云设备、人工智能设备等等；
(6)其他等等。
对于通信装置可以是芯片或芯片系统的情况，芯片包括处理器和接口。其中，处理器的数量可以是一个或多个，接口的数量可以是多个。
可选的，芯片还包括存储器，存储器用于存储必要的计算机程序和数据。
本领域技术人员还可以了解到本公开实施例列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、电脑软件，或两者的结合进行实现。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个系统的设计要求。本领域技术人员可以对于每种特定的应用，可以使用各种方法实现所述的功能，但这种实现不应被理解为超出本公开实施例保护的范围。
本公开实施例还提供一种确定侧链路时长的系统，该系统包括前述实施例中作为终端设备(如前述方法实施例中的第一终端设备)的通信装置和作为网络设备的通信装置，或者，该系统包括前述实施例中作为终端设备(如前述方法实施例中的第一终端设备)的通信装置和作为网络设备的通信装置。
本公开还提供一种可读存储介质，其上存储有指令，该指令被计算机执行时实现上述任一方法实施例的功能。
本公开还提供一种计算机程序产品，该计算机程序产品被计算机执行时实现上述任一方法实施例的功能。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机程序。在计算机上加载和执行所述计算机程序时，全部或部分地产生按照本公开实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机程序可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机程序可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，高密度数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。
本领域普通技术人员可以理解：本公开中涉及的第一、第二等各种数字编号仅为描述方便进行的区分，并不用来限制本公开实施例的范围，也表示先后顺序。
本公开中的至少一个还可以描述为一个或多个，多个可以是两个、三个、四个或者更多个，本公开 不做限制。在本公开实施例中，对于一种技术特征，通过“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”等区分该种技术特征中的技术特征，该“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”描述的技术特征间无先后顺序或者大小顺序。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本发明的其它实施方案。本公开旨在涵盖本发明的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本发明的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (35)

  1. 一种定时器启动方法，其特征在于，所述方法由第一终端设备执行，包括：
    接收第二终端设备通过侧行链路SL发送的数据和/或信息；
    确定对所述数据和/或信息是否进行反馈；
    确定对所述数据和/或信息不反馈时，启动第一重传定时器；
    在所述第一重传定时器运行期间，监听物理侧行控制信道PSCCH。
  2. 如权利要求1所述的方法，其特征在于，所述启动第一重传定时器，包括：
    在物理侧行共享信道PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一往返时间RTT定时器；
    确定所述第一RTT定时器超时，启动所述第一重传定时器。
  3. 如权利要求1所述的方法，其特征在于，所述启动第一重传定时器，包括：
    在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动所述第一重传定时器。
  4. 如权利要求2或3所述的方法，其特征在于，所述方法还包括：
    确定在所述第一重传定时器运行期间接收到数据和/或信息并成功解码，停止所述第一重传定时器。
  5. 如权利要求2或3所述的方法，其特征在于，所述方法还包括：
    确定在所述第一重传定时器运行期间未监听到PSCCH中的数据和/或信息，当所述第一重传定时器超时，启动第二RTT定时器；
    确定所述第二RTT定时器超时，启动第二重传定时器；
    在所述第二重传定时器运行期间，监听所述PSCCH。
  6. 如权利要求5所述方法，其特征在于，所述方法还包括：
    确定在所述第二重传定时器运行期间接收到数据和/或信息并成功解码，停止所述第二重传定时器。
  7. 如权利要求5所述方法，其特征在于，所述方法还包括：
    确定在所述第二重传定时器运行期间未监听到PSCCH中的数据和/或信息，当所述第二重传定时器超时，启动所述第二RTT定时器；
    确定所述第二RTT定时器超时，启动所述第二重传定时器；
    在所述第二重传定时器运行期间，监听所述PSCCH。
  8. 如权利要求7所述方法，其特征在于，所述方法还包括：
    对所述第二RTT定时器或所述第二重传定时器的启动次数进行计数；
    当所述第二RTT定时器的启动次数或所述第二重传定时器的启动次数大于或等于第一阈值，停止启动所述第二RTT定时器或第二重传定时器。
  9. 如权利要求2或3所述的方法，其特征在于，所述方法还包括：
    确定在所述第一重传定时器运行期间未监听到PSCCH中的数据和/或信息，当所述第一重传定时器超时，启动第三重传定时器；
    在所述第三重传定时器运行期间，监听所述PSCCH。
  10. 如权利要求9所述的方法，其特征在于，所述方法还包括：
    确定在所述第三重传定时器运行期间接收到数据和/或信息并成功解码，停止所述第三重传定时器。
  11. 如权利要求9所述方法，其特征在于，所述方法还包括：
    确定在所述第三重传定时器运行期间未监听到PSCCH中的数据和/或信息，当所述第三重传定时器超时，启动所述第三重传定时器；
    在所述第三重传定时器运行期间，监听所述PSCCH。
  12. 如权利要求11所述方法，其特征在于，所述方法还包括：
    对所述第三重传定时器的启动次数进行计数；
    当所述第三重传定时器的启动次数大于或等于第二阈值，停止启动所述第三重传定时器。
  13. 如权利要求1所述的方法，其特征在于，所述确定对所述数据和/或信息是否进行反馈，包括：
    接收所述第二终端设备发送的侧行链路控制信息SCI，所述SCI用于指示所述第一终端设备是否需要对接收到的数据和/或信息进行反馈；
    基于所述SCI的指示确定对接收到的数据和/或信息是否进行反馈。
  14. 如权利要求1所述的方法，其特征在于，所述确定对所述数据和/或信息是否进行反馈，包括：
    根据接收的数据和/或信息对应的资源池是否配置了反馈资源来确定对接收到的数据和/或信息是否进行反馈。
  15. 一种定时器启动方法，其特征在于，所述方法由第二终端设备执行，包括：
    通过SL向第一终端设备发送数据和/或信息；
    确定所述第一终端设备对接收到的数据和/或信息是否进行反馈；
    确定所述第一终端设备对接收到的数据和/或信息不反馈，启动第一重传定时器；
    在所述第一重传定时器运行期间，通过PSCCH向所述第一终端设备发送数据和/或信息。
  16. 如权利要求15所述的方法，其特征在于，所述启动第一重传定时器，包括：
    在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动第一RTT定时器；
    确定所述第一RTT定时器超时，启动所述第一重传定时器。
  17. 如权利要求15所述的方法，其特征在于，所述启动第一重传定时器，包括：
    在PSSCH资源位置之后的第一个时隙或PSCCH资源位置之后的第一个时隙启动所述第一重传定时器。
  18. 如权利要求16或17所述的方法，其特征在于，所述方法还包括：
    停止所述第一重传定时器。
  19. 如权利要求16或17所述的方法，其特征在于，所述方法还包括：
    确定所述第一重传定时器超时，启动第二RTT定时器；
    确定所述第二RTT定时器超时，启动第二重传定时器；
    在所述第二重传定时器运行期间，通过所述PSCCH向所述第一终端设备发送数据和/或信息。
  20. 如权利要求19所述方法，其特征在于，所述方法还包括：
    停止所述第二重传定时器。
  21. 如权利要求19所述方法，其特征在于，所述方法还包括：
    确定所述第二重传定时器超时，启动所述第二RTT定时器；
    确定所述第二RTT定时器超时，启动所述第二重传定时器；
    在所述第二重传定时器运行期间，通过所述PSCCH向所述第一终端设备发送数据和/或信息。
  22. 如权利要求21所述方法，其特征在于，所述方法还包括：
    对所述第二RTT定时器或所述第二重传定时器的启动次数进行计数；
    当所述第二RTT定时器的启动次数或所述第二重传定时器的启动次数大于或等于第一阈值，停止启动所述第二RTT定时器或第二重传定时器。
  23. 如权利要求16或17所述的方法，其特征在于，所述方法还包括：
    当所述第一重传定时器超时，启动第三重传定时器；
    在所述第三重传定时器运行期间，通过所述PSCCH向所述第一终端设备发送数据和/或信息。
  24. 如权利要求23所述的方法，其特征在于，所述方法还包括：
    停止所述第三重传定时器。
  25. 如权利要求23所述方法，其特征在于，所述方法还包括：
    当所述第三重传定时器超时，启动所述第三重传定时器；
    在所述第三重传定时器运行期间，通过所述PSCCH向所述第一终端设备发送数据和/或信息。
  26. 如权利要求25所述方法，其特征在于，所述方法还包括：
    对所述第三重传定时器的启动次数进行计数；
    当所述第三重传定时器的启动次数大于或等于第二阈值，停止启动所述第三重传定时器。
  27. 如权利要求15所述的方法，其特征在于，所述方法还包括：
    向所述第一终端设备发送SCI，所述SCI用于指示所述第一终端设备是否需要对接收到的数据和/或信息进行反馈。
  28. 一种定时器启动装置，其特征在于，包括：
    接收模块，用于接收第二终端设备通过SL发送的数据和/或信息；
    处理模块，用于确定对所述数据和/或信息是否进行反馈；以及用于确定对所述数据和/或信息不反馈时，启动第一重传定时器；
    所述接收模块，还用于在所述第一重传定时器运行期间，监听物理侧行控制信道PSCCH。
  29. 一种定时器启动装置，其特征在于，包括：
    发送模块，用于通过SL向第一终端设备发送数据和/或信息；
    处理模块，用于确定所述第一终端设备对接收到的数据和/或信息是否进行反馈；以及用于确定所述第一终端设备对接收到的数据和/或信息不反馈，启动第一重传定时器；
    所述发送模块，还用于在所述第一重传定时器运行期间，通过PSCCH向所述第一终端设备发送数据和/或信息。
  30. 一种通信装置，其特征在于，所述装置包括处理器和存储器，其中，所述存储器中存储有计算机程序，所述处理器执行所述存储器中存储的计算机程序，以使所述装置执行如权利要求1至14中任一项所述的方法。
  31. 一种通信装置，其特征在于，所述装置包括处理器和存储器，其中，所述存储器中存储有计算机程序，所述处理器执行所述存储器中存储的计算机程序，以使所述装置执行如权利要求15至27中任一项所述的方法。
  32. 一种通信装置，其特征在于，包括：处理器和接口电路，其中
    所述接口电路，用于接收代码指令并传输至所述处理器；
    所述处理器，用于运行所述代码指令以执行如权利要求1至14中任一项所述的方法。
  33. 一种通信装置，其特征在于，包括：处理器和接口电路，其中
    所述接口电路，用于接收代码指令并传输至所述处理器；
    所述处理器，用于运行所述代码指令以执行如权利要求15至27中任一项所述的方法。
  34. 一种计算机可读存储介质，用于存储有指令，当所述指令被执行时，使如权利要求1至14中任一项所述的方法被实现。
  35. 一种计算机可读存储介质，用于存储有指令，当所述指令被执行时，使如权利要求18至27中任一项所述的方法被实现。
PCT/CN2022/076241 2022-02-14 2022-02-14 一种定时器启动方法/装置/设备及存储介质 WO2023151090A1 (zh)

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