WO2020206616A1 - 直连通信的重传反馈方法、装置及存储介质 - Google Patents

直连通信的重传反馈方法、装置及存储介质 Download PDF

Info

Publication number
WO2020206616A1
WO2020206616A1 PCT/CN2019/081956 CN2019081956W WO2020206616A1 WO 2020206616 A1 WO2020206616 A1 WO 2020206616A1 CN 2019081956 W CN2019081956 W CN 2019081956W WO 2020206616 A1 WO2020206616 A1 WO 2020206616A1
Authority
WO
WIPO (PCT)
Prior art keywords
repeated transmission
terminal
feedback
transmission
repeated
Prior art date
Application number
PCT/CN2019/081956
Other languages
English (en)
French (fr)
Inventor
赵群
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 US17/601,811 priority Critical patent/US20220182206A1/en
Priority to EP19924137.3A priority patent/EP3955601A4/en
Priority to CN201980000625.9A priority patent/CN110169093B/zh
Priority to PCT/CN2019/081956 priority patent/WO2020206616A1/zh
Publication of WO2020206616A1 publication Critical patent/WO2020206616A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • 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
    • H04L1/1607—Details of the supervisory signal
    • 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
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • 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
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements
    • 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
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1861—Physical mapping arrangements
    • 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
    • H04L1/189—Transmission or retransmission of more than one copy of a message
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/16—Half-duplex systems; Simplex/duplex switching; Transmission of break signals non-automatically inverting the direction of transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the embodiments of the present disclosure relate to the field of communication technologies, and in particular, to a retransmission feedback method, device and storage medium for direct communication.
  • V2x vehicle to everything
  • a retransmission feedback method for direct communication the method is executed by a first terminal, and the method includes:
  • Transmission includes at least one repeated transmission
  • the generating feedback information for each repeated transmission in the repeated transmission during the repeated transmission of the direct data with the second terminal includes:
  • the generating feedback information corresponding to the i-th repeated transmission after performing the i-th repeated transmission in the repeated transmission includes:
  • the first transmission result is used to indicate whether the direct data is correctly received during the i-th repeated transmission.
  • the generating feedback information corresponding to the i-th repeated transmission after performing the i-th repeated transmission in the repeated transmission includes:
  • the second transmission result is used to indicate whether the direct data is correctly received during the first i repeated transmissions in the repeated transmission.
  • the acquiring the feedback resource of each repeated transmission in the repeated transmission includes:
  • the feedback time interval is a time interval pre-configured in the first terminal
  • the feedback time interval is a time interval carried in a configuration instruction sent by the configuration device to the first terminal.
  • the repeated transmission process is a repeated transmission process performed by the first terminal in a half-duplex working state.
  • the repeated transmission process is a partial repeated transmission process of at least two repeated transmission processes performed between the second terminal and the first terminal for the direct connection data.
  • a retransmission feedback method for direct communication the method is executed by a second terminal, and the method includes:
  • the acquiring the feedback resource of each repeated transmission in the repeated transmission during the repeated transmission of the direct data with the first terminal includes:
  • the feedback time interval is a time interval preconfigured in the second terminal
  • the feedback time interval is a time interval carried in a configuration instruction sent by the configuration device to the second terminal.
  • the method further includes:
  • the repeated transmission process is a repeated transmission process performed by the second terminal in a half-duplex working state.
  • the repeated transmission process is a blind repeated transmission process.
  • a retransmission feedback device for direct communication is used in a first terminal, and the device includes:
  • the generating module is configured to generate feedback information for each repeated transmission in the repeated transmission during the repeated transmission of the direct connection data with the second terminal, the feedback information being used to indicate whether the direct connection is correctly received Data, the repeated transmission includes at least one repeated transmission;
  • the first obtaining module is configured to obtain feedback resources of each repeated transmission in the repeated transmission
  • the first sending module is configured to send feedback information corresponding to one repeated transmission to the second terminal on the respective feedback resources of each repeated transmission.
  • the generating module is used to:
  • the first transmission result is used to indicate whether the direct data is correctly received during the i-th repeated transmission.
  • the generating module is used to:
  • the second transmission result is used to indicate whether the direct data is correctly received during the first i repeated transmissions in the repeated transmission.
  • the first acquisition module includes a first acquisition sub-module and a second acquisition sub-module;
  • the first obtaining submodule is configured to obtain time-frequency information of the transmission resource used for the jth repeated transmission in the repeated transmission, where j is an integer greater than or equal to 1;
  • the second acquisition submodule is configured to acquire the feedback resource of the jth repeated transmission according to the time-frequency information of the transmission resource used for the jth repeated transmission and the feedback time interval.
  • the feedback time interval is a time interval pre-configured in the first terminal
  • the feedback time interval is a time interval carried in a configuration instruction sent by the configuration device to the first terminal.
  • the repeated transmission process is a partial repeated transmission process of at least two repeated transmission processes performed between the second terminal and the first terminal for the direct connection data.
  • the repeated transmission process is a blind repeated transmission process.
  • the second acquiring module is configured to acquire the feedback resource of each repeated transmission in the repeated transmission during the repeated transmission of the direct data with the first terminal, and the repeated transmission includes at least one repeated transmission;
  • the second acquisition module includes a third acquisition sub-module and a fourth acquisition sub-module;
  • the third acquiring submodule is configured to acquire time-frequency information of the transmission resource used for the j-th repeated transmission in the repeated transmission, where j is an integer greater than or equal to 1;
  • the fourth acquiring submodule is configured to acquire the feedback resource of the jth repeated transmission according to the time-frequency information of the transmission resource used for the jth repeated transmission and the feedback time interval.
  • the feedback time interval is a time interval preconfigured in the second terminal
  • the device further includes:
  • the repeated transmission process is a repeated transmission process performed by the second terminal in a half-duplex working state.
  • the repeated transmission process is a partial repeated transmission process of at least two repeated transmission processes performed between the second terminal and the first terminal for the direct connection data.
  • the repeated transmission process is a blind repeated transmission process.
  • a retransmission feedback device for direct communication the device is used in a first terminal, and the device includes:
  • a memory for storing executable instructions of the processor
  • the processor is configured to:
  • Transmission includes at least one repeated transmission
  • a retransmission feedback device for direct communication The device is used in a second terminal, and the device includes:
  • a memory for storing executable instructions of the processor
  • the processor is configured to:
  • the feedback information sent by the first terminal corresponding to one repeated transmission is received on the respective feedback resources of each repeated transmission, and the feedback information is used to indicate whether the direct connection data is correctly received.
  • a computer-readable storage medium containing executable instructions, and a processor in the first terminal invokes the executable instructions to implement The retransmission feedback method for direct communication described in the first aspect or any optional solution of the first aspect.
  • the first terminal During the repeated transmission of the direct data with the second terminal, the first terminal generates feedback information for each repeated transmission in the repeated transmission.
  • the feedback information is used to indicate whether the direct data is correctly received.
  • the repeated transmission process includes Repeat the transmission at least once; and obtain the feedback resource of each repeated transmission in the repeated transmission; send the feedback information of each repeated transmission to the second terminal on the feedback resource of each repeated transmission.
  • the first terminal when direct communication is performed between terminals, the first terminal feedbacks the direct data repeatedly transmitted by the second terminal every time, which prevents the terminal from interacting with multiple other terminals in a half-duplex state.
  • the feedback information conflicts with other information, which improves the success rate of feedback on retransmitted data between terminals.
  • Fig. 1 is a schematic diagram showing an implementation environment involved in a retransmission feedback method for direct communication according to some exemplary embodiments
  • FIG. 3 is a schematic diagram of a structure including a transmission block in a time slot structure according to an embodiment of the present disclosure
  • FIG. 4 is a method flowchart of a retransmission feedback method for direct communication provided by an embodiment of the present disclosure
  • FIG. 7 is a schematic diagram of the position of a feedback time slot involved in an embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram of a time slot structure during multiple direct data transmission involved in an embodiment of the present disclosure.
  • Fig. 10 is a block diagram showing a retransmission feedback device for direct communication according to an exemplary embodiment
  • Fig. 11 is a block diagram showing a retransmission feedback device for direct communication according to an exemplary embodiment
  • Fig. 12 is a schematic structural diagram showing a wireless communication device according to an exemplary embodiment.
  • Half-duplex refers to the fact that wireless communication devices cannot receive or send data at the same time on the same frequency band due to the existence of transceiver interference. That is, a wireless communication device may have multiple services at the same time. Some services require the wireless communication device to send service data, and some services require the wireless communication device to receive service data; if the wireless communication device sends data on a certain time domain symbol, then The wireless communication device cannot receive data sent by other wireless communication devices on the same time domain symbol, even if the data and the frequency domain resources occupied by the data sent by the wireless communication device are orthogonal.
  • Blind re-transmission that is, in the process of data transmission, the wireless communication device as the sending end does not receive the feedback information from the wireless communication device as the receiving end, and directly responds to the data transmission block of the physical layer (Transport Block). ) Repeat transmission multiple times.
  • FIG. 1 is a schematic diagram of an implementation environment involved in a retransmission feedback method for direct communication according to some exemplary embodiments. As shown in FIG. 1, the implementation environment may include several terminals 110 and base stations 120.
  • the terminal 110 is a wireless communication device that can transmit data using wireless access technology.
  • the terminal 110 may support cellular mobile communication technology, for example, it may support the 4th generation mobile communication (4G) technology and 5G technology.
  • the terminal 110 may also support a next-generation mobile communication technology of 5G technology.
  • the terminal 110 may be an in-vehicle device, for example, it may be a trip computer with a wireless communication function, or a wireless communication device connected to the trip computer.
  • the terminal 110 may also be a user terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal.
  • a mobile phone or "cellular" phone
  • it may be a portable, pocket-sized, handheld, built-in computer or vehicle-mounted mobile device.
  • station Station, STA
  • subscriber unit subscriber station
  • mobile station mobile station
  • mobile station mobile
  • remote station remote station
  • access terminal access terminal
  • user device user terminal
  • user agent user agent
  • user equipment user device
  • UE user equipment
  • the terminal 110 may be a mobile terminal such as a smart phone, a tablet computer, or an e-book reader, or may be a smart wearable device such as smart glasses, a smart watch, or a smart bracelet.
  • the terminal 110 is a wireless communication device supporting half-duplex technology.
  • terminals 110 support wireless communication via direct communication.
  • a wireless connection can be established between the base station 120 and the terminal 110 through a wireless air interface.
  • the wireless air interface is a wireless air interface based on the fourth-generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth-generation mobile communication network technology (5G) standard, such as The wireless air interface is a new air interface; or, the wireless air interface may also be a wireless air interface based on 5G-based next-generation mobile communication network technology standards.
  • the foregoing wireless communication system may further include a network management device 130.
  • the communication between vehicle-mounted equipment and other equipment can be transferred through the base station and the core network, that is, the communication link between the terminal and the base station in the original cellular network is used for communication (uplink or downlink communication); Communicate directly through direct links between devices (Sidelink secondary link communication).
  • Sidelink communication Compared with Uu interface communication, Sidelink communication has the characteristics of short delay and low overhead, and is very suitable for direct communication between vehicle-mounted equipment and other peripheral equipment that is close to the geographical position.
  • RAN1 has decided to support the use of physical layer HARQ (Hybrid Automatic Repeat Request) for unicast services and multicast services of direct communication in wireless communication scenarios.
  • Request feedback retransmission mechanism
  • blind retransmission technology is also used, so that even one transmission during multiple retransmissions is due to half-duplex reasons (That is, the wireless communication device as the receiving end is sending data on the same time domain resource) is not correctly received by the wireless communication device as the receiving end, but the wireless communication device as the receiving end can also get it correctly by receiving repeated transmissions on other time domain resources Data, thereby ensuring the reliability of data transmission.
  • RAN1 decides to support the setting of the feedback information transmission distance corresponding to the data transmission time interval through a pre-configuration or configuration method. That is, after the wireless communication device at the receiving end performs blind repetitive transmission, the wireless communication device at the receiving end feedbacks the transmission block of this blind repetitive transmission, and the wireless communication device at the sending end also responds to the wireless communication device at the receiving end. Feedback to determine whether to further HARQ retransmission.
  • a wireless communication device often needs to send data through blind repetitive transmission.
  • the wireless communication device at the receiving end also needs to send data through blind repetitive transmission in time slot 2 shown in FIG. 2, and The time domain resources occupied by the data sent in this blind repetitive transmission overlap with the time domain resources occupied by the transmission block shown in Figure 2, and it is also in the last transmission of this blind repetitive transmission, because the wireless communication device at the receiving end It works through half-duplex, and can only receive data or send data in time slot 2.
  • FIG. 3 shows a schematic diagram of a structure including a transmission block in a time slot structure involved in an embodiment of the present disclosure.
  • FIG. 3 it contains time slot 1, time slot 2, time slot 3, time slot m, time slot 1 and the transmission block contained in time slot 3.
  • One is the wireless communication sent by the wireless communication device at the transmitting end to the receiving end.
  • the second is the transmission block that the wireless communication device at the receiving end needs to send to other wireless communication devices
  • the time slot m is the time slot after the interval pre-configured value.
  • the wireless communication device at the end needs to send feedback information 1 to the wireless communication device at the transmitting end in time slot m.
  • the wireless communication device at the receiving end is used as the transmitting end of transmission block two and needs to be in time slot m.
  • the wireless communication device at the receiving end works through half-duplex, corresponding to this time slot m, it can only send feedback information 1 or receive feedback information 2. Whichever wireless communication device at the receiving end selects, lacks another kind of feedback information for blind repeated transmission, which leads to errors in the transmission process.
  • FIG. 4 shows a method flowchart of a retransmission feedback method for direct communication provided by an embodiment of the present disclosure.
  • the method can be applied to the wireless communication scenario shown in FIG. 1, and executed by the wireless communication device in the scenario shown in FIG. 1.
  • the method may include the following steps:
  • step 401 the first terminal generates feedback information for each repeated transmission in the repeated transmission during the repeated transmission of the direct data with the second terminal.
  • the feedback information is used to indicate whether the direct connection data is correctly received, and the above repeated transmission process includes at least one repeated transmission.
  • the feedback information is feedback information based on the HARQ mechanism.
  • step 402 the first terminal obtains feedback resources for each repeated transmission in the repeated transmission.
  • step 403 the first terminal sends feedback information corresponding to one repeated transmission to the second terminal on each repeated transmission of its feedback resource.
  • generating feedback information for each repeated transmission in the repeated transmission during the repeated transmission of the direct data with the second terminal includes:
  • the first terminal when sending feedback information corresponding to one repeated transmission to the second terminal on each repeated transmission of the respective feedback resources, for the i-th repeated transmission in each repeated transmission, the first terminal performs the i-th repeated transmission. On the feedback resource of the repeated transmission, the feedback information of the i-th repeated transmission is sent to the second terminal.
  • generating feedback information corresponding to the i-th repeated transmission after performing the i-th repeated transmission in the above-mentioned repeated transmission includes:
  • the first transmission result is used to indicate whether the direct data is correctly received during the i-th repeated transmission.
  • generating feedback information corresponding to the i-th repeated transmission after performing the i-th repeated transmission in the above-mentioned repeated transmission includes:
  • the second transmission result is used to indicate whether the direct data is correctly received during the first i repeated transmissions in the repeated transmission.
  • the foregoing obtaining feedback resources for each repeated transmission in the repeated transmission includes:
  • the feedback resource for the jth repeated transmission is obtained.
  • the feedback time interval is the time interval carried in the configuration instruction sent by the configuration device to the first terminal.
  • the foregoing repeated transmission process is a repeated transmission process performed by the first terminal in a half-duplex working state.
  • the foregoing repeated transmission process is a partial repeated transmission process of at least two repeated transmission processes performed between the second terminal and the first terminal for the direct connection data.
  • step 404 the second terminal obtains feedback resources for each repeated transmission in the repeated transmission during the repeated transmission of the direct data with the first terminal.
  • acquiring the feedback resource of each repeated transmission in the repeated transmission during the repeated transmission of the direct data with the first terminal includes:
  • the feedback resource for the jth repeated transmission is obtained.
  • the feedback time interval is a time interval pre-configured in the second terminal
  • the feedback time interval is the time interval carried in the configuration instruction sent by the configuration device to the second terminal.
  • the method further includes:
  • the foregoing repeated transmission process is a repeated transmission process performed by the second terminal in a half-duplex working state.
  • the foregoing repeated transmission process is a partial repeated transmission process of at least two repeated transmission processes performed between the second terminal and the first terminal for the direct connection data.
  • the foregoing repeated transmission process is a blind repeated transmission process.
  • the first terminal when direct communication is performed between terminals, the first terminal feedbacks the direct data repeatedly transmitted by the second terminal every time, which prevents the terminal from being in a half-duplex state.
  • the feedback information conflicts with other information, which improves the success rate of feedback on retransmitted data between terminals.
  • step 501 the second terminal sends direct data to the first terminal through repeated transmission.
  • the repeated transmission process includes at least one repeated transmission.
  • the above-mentioned first terminal and second terminal may be two terminals performing direct communication.
  • the second terminal is a wireless communication device that sends directly connected data in a wireless communication scenario, that is, the above-mentioned wireless communication device as the sending end;
  • the first terminal is a wireless communication device that receives the directly connected data sent by the second terminal, that is, The above-mentioned wireless communication device as the receiving end.
  • the second terminal may be the two terminals in the wireless communication environment shown in FIG. 1 above. Further, the second terminal may be the vehicle-mounted device, roadside device, user terminal device, etc. in FIG. 1 above. And the second terminal may use HARQ retransmission technology of the physical layer to transmit data to other wireless communication devices in the wireless communication environment.
  • the first terminal may also be a terminal in the wireless communication environment shown in Figure 1 above, and may receive data retransmitted by the second terminal.
  • the retransmission technology adopted by the second terminal may also be an automatic repeat request (ARQ) of a radio link control (Radio Link Control, RLC) layer.
  • ARQ automatic repeat request
  • RLC Radio Link Control
  • the foregoing repeated transmission process may be a blind repeated transmission process.
  • the second terminal can directly perform multiple repeated transmissions on one data block according to the blind repeated transmission mechanism in combination with a preset retransmission strategy. For example, according to the predetermined number of retransmissions, the same data block is repeatedly transmitted on multiple continuous or discontinuous time-frequency resources.
  • the first terminal can also retransmit the second terminal according to the blind retransmission mechanism. The transmission block is received.
  • the process in which the second terminal sends the repeated transmission to the first terminal through repeated transmission may be a repeated transmission process performed by the second terminal in a half-duplex working state.
  • the first terminal may also receive the direct connection data sent by the second terminal in a half-duplex working state.
  • the first terminal or the second terminal may also receive or send data through a full duplex mechanism.
  • step 502 the first terminal generates feedback information for each repeated transmission in the repeated transmission during the repeated transmission of the direct data with the second terminal.
  • the feedback information is used to indicate whether the direct data is correctly received.
  • the first terminal When the first terminal receives the direct data sent by the second terminal, it can generate a feedback message for the direct data transmitted this time, so as to further inform the second terminal whether it has successfully and correctly received the direct data.
  • the feedback information may be NACK (Negative Acknowledgement, negative character) or ACK (Acknowledgement, confirmation character). That is, when the first terminal successfully receives the direct data sent by the second terminal and correctly recovers the direct data sent by the second terminal, at this time, the first terminal can generate an ACK for the direct data transmitted this time; The first terminal fails to receive the direct connection data sent by the second terminal, or does not correctly restore the direct connection data sent by the second terminal. In this case, the first terminal may generate a NACK for the direct connection data transmitted this time.
  • NACK Negative Acknowledgement, negative character
  • ACK Acknowledgement, confirmation character
  • the first terminal may feed back an ACK to the second terminal when the direct data is correctly restored; when the first terminal does not correctly restore the direct data, it may The second terminal feeds back NACK.
  • the first terminal may feed back an ACK to the second terminal when receiving the direct data correctly; when the first terminal receives the direct data incorrectly, it may feed back a NACK to the second terminal.
  • the first terminal only feeds back NACK to the second terminal when it receives the direct data incorrectly; when the first terminal receives the direct data correctly, it may not feed back the second terminal.
  • the first terminal may generate feedback information corresponding to the i-th repeated transmission after performing the i-th repeated transmission in the repeated transmission, where i is an integer greater than or equal to 1.
  • the first terminal may generate feedback information corresponding to the repeated transmission for any one of the repeated transmissions. For example, once the second terminal sends the direct connection data to the first terminal through 4 repeated transmissions, the first terminal can generate the feedback information corresponding to the first repeated transmission for the first repeated transmission among the 4 repeated transmissions. The second repeated transmission among the four repeated transmissions generates feedback information corresponding to the second repeated transmission, and so on.
  • the first terminal may generate feedback information corresponding to the i-th repeated transmission according to the first transmission result at the end of the i-th repeated transmission.
  • the first transmission result is used to indicate whether the direct data is correctly received during the i-th repeated transmission.
  • the first terminal may obtain the first transmission result of the i-th repeated transmission, and generate feedback information corresponding to the i-th repeated transmission according to the first transmission result. That is, when the first transmission result indicates that the first terminal correctly receives the directly connected data during the i-th repeated transmission, the first terminal may generate feedback information corresponding to the first transmission result.
  • the feedback The information may be the above-mentioned ACK.
  • the first terminal may also generate feedback information corresponding to the first transmission result.
  • the feedback The information may be the above-mentioned NACK.
  • the first terminal may obtain the second transmission result of the previous i-th repeated transmission, and generate feedback information corresponding to the i-th repeated transmission according to the second transmission result. That is, when the second transmission result indicates that the first terminal correctly received the direct data during the previous i repeated transmissions, the first terminal may generate feedback information corresponding to the second transmission result.
  • the feedback The information can also be the aforementioned ACK.
  • the second transmission result indicates that the first terminal did not correctly receive the direct data during the previous i repeated transmissions
  • the first terminal may also generate feedback information corresponding to the second transmission result.
  • the feedback The information may also be the aforementioned NACK.
  • FIG. 6 shows a schematic diagram of a time slot in a repeated transmission process involved in an embodiment of the present disclosure.
  • it contains a first time slot 601, a second time slot 602, a third time slot 603, and a fourth time slot 604.
  • the second terminal transmits direct data to the first terminal through 4 repeated transmissions.
  • the time slot for these 4 repeated transmissions is shown in Figure 6.
  • the first terminal failed to receive the direct data in the first repeated transmission performed by the second terminal, and fed back NACK to the second terminal.
  • the direct connection data is successfully received and an ACK is fed back to the second terminal.
  • the first terminal when the feedback information corresponding to the third repeated transmission is generated, the first terminal can follow the second According to the transmission result, it is determined that the first terminal has correctly received the direct data 1 before this repeated transmission. Therefore, the first terminal can select the ACK generated the second time as the feedback information for the third repeated transmission and send it to The second terminal performs feedback.
  • the third repeated transmission can be referred to in the fourth repeated transmission. Furthermore, even if the fourth repeated transmission fails to receive the direct data first, the fourth repeated transmission can also be sent to the first The second terminal performs feedback according to receiving correct feedback information.
  • the repeated transmission process performed by the second terminal and the first terminal may be a partial repeated transmission process in at least two repeated transmission processes performed between the second terminal and the first terminal for the direct connection data.
  • the first terminal may Part of the repetitive transmission process is fed back, while for other repetitive transmission processes, no feedback is required.
  • the number of times of the foregoing repeated transmission process is 4 times, and the first terminal may only give feedback on part of the repeated transmission process in these 4 repeated transmission processes. Accordingly, the second terminal may only provide feedback on the part of the repeated transmission process during these 4 times. Partially repeat the transmission process to monitor the corresponding feedback information. For example, the first terminal can only feed back the reception results of the second and fourth repeated transmissions among the four repeated transmissions. Correspondingly, the second terminal only responds to the second one of the four repeated transmissions. The transmission results of the second and fourth repeat transmission process are monitored.
  • the first terminal and the second terminal may determine in a pre-configured manner which of the transmission processes in the at least two repeated transmission processes of the same piece of directly connected data.
  • the second terminal may also inform the first terminal through indication signaling that the above-mentioned repeated transmission process refers to which transmission processes in the at least two repeated transmission processes of the same piece of direct data.
  • step 503 the first terminal obtains feedback resources for each repeated transmission in the repeated transmission.
  • the feedback resource may include time domain resources, frequency domain resources, or both.
  • the first terminal may obtain the time-frequency information of the transmission resource used for the jth repeated transmission in the repeated transmission, where j is an integer greater than or equal to 1, and the first terminal may obtain the time-frequency information used for the jth repeated transmission according to the The time-frequency information of the transmission resource and the feedback time interval are used to obtain the feedback resource of the j-th repeated transmission.
  • FIG. 7 shows a schematic diagram of the position of a feedback slot involved in an embodiment of the present disclosure.
  • the first terminal receives the j-th repeated transmission of the direct connection data sent by the second terminal in the first time slot 701, and the first terminal can obtain the first time slot 701 according to the first time slot 701 and the feedback time interval.
  • the second time slot 702 is a feedback resource corresponding to the j-th repeated transmission, that is, the first terminal may send the generated feedback information to the second terminal in the second time slot 702.
  • the foregoing feedback time interval is a time interval preconfigured in the first terminal; that is, the first terminal may calculate the feedback resource through the time interval preset in its own chip.
  • the preset time intervals between different wireless devices may be the same, so that the wireless communication device at the sending end receives the feedback information in the time slot, and the wireless communication device at the receiving end is also at the same time. The corresponding feedback information is fed back to the wireless communication device at the transmitting end in the slot.
  • the feedback time interval may be a time interval carried in a configuration instruction sent by the configuration device to the first terminal.
  • the configuration device may be a base station. That is, when the two vehicle network communication devices in the V2x communication scenario are performing repeated data transmission, the feedback time interval between the two can be notified in advance by the base station through configuration instructions to the two vehicle network communication devices.
  • step 504 the first terminal sends feedback information corresponding to one repeated transmission to the second terminal on each repeated transmission of its feedback resource.
  • the first terminal when the above-mentioned first terminal and the second terminal perform part of the repeated transmission process for at least two repeated transmissions of the directly connected data in the repeated transmission, the first terminal is also corresponding On the feedback resource of the partially repeated transmission, the feedback information corresponding to the partially repeated transmission is sent to the second terminal.
  • taking the feedback time interval obtained by the first terminal as an example is 1 time slot please refer to FIG. 8, which shows the repeated transmission process of the first terminal involved in the embodiment of the present disclosure.
  • FIG. 8 shows the repeated transmission process of the first terminal involved in the embodiment of the present disclosure.
  • the second terminal sends the direct data one to the first terminal in four time slots (first time slot 801, second time slot 802, third time slot 803, and fourth time slot 804) respectively.
  • Direct connection data When the first terminal needs to feed back the direct connection data one received each time, the first terminal can obtain the corresponding feedback resource according to the time slot of the direct connection data one received each time and the feedback time interval.
  • the feedback resource one 805, the feedback resource two 806, the feedback resource three 807, and the feedback resource four 808 shown in Fig. 8 respectively feed back corresponding feedback information to the second terminal on each feedback resource.
  • the position of the symbol fed back by the first terminal may also be preset.
  • the first terminal when the first terminal feedbacks to the second terminal, the feedback information is sent on the penultimate symbol and the third symbol in the time slot corresponding to each feedback resource. That is, when the first terminal obtains the time slot for sending the feedback information, it can send the feedback information to the second terminal at the corresponding symbol position in the corresponding time slot.
  • step 505 the second terminal obtains feedback resources for each repeated transmission in the repeated transmission during the repeated transmission of the direct data with the first terminal.
  • step 503 For obtaining feedback resources in this step, reference may be made to the description in step 503 above, which will not be repeated here.
  • step 506 the second terminal receives the feedback information sent by the first terminal corresponding to one repeated transmission on its respective feedback resource for each repeated transmission.
  • the second terminal when the above-mentioned first terminal and the second terminal perform at least two repeated transmissions for the direct connection data in the repeated transmission, the second terminal is also corresponding On the feedback resource of the partially repeated transmission, the feedback information sent by the first terminal for the partially repeated transmission is received.
  • the second terminal when the second terminal receives the feedback information of the k-th repeated transmission in the repeated transmission, if the feedback information of the k-th repeated transmission indicates that the direct data is correctly received, the connection is cancelled.
  • Repeated transmission of directly connected data that has not yet been completed. For example, the second terminal needs to perform 4 repeated transmissions of the directly connected data to the first terminal. After receiving the feedback information of the first terminal for the second repeated transmission, the feedback information indicates that the first terminal has correctly received this The direct data transmission for the second time. At this time, if the second terminal has not completed the third and fourth repeated transmissions of the direct data one, the second terminal can cancel the third and fourth transmissions of the direct data one. The fourth repeat transmission.
  • the second terminal may also use the time domain resources of the third and fourth repeated transmissions of the direct data one to transmit the direct data two. That is, select other data to be transmitted for transmission, thereby improving the utilization of time domain resources.
  • the above k may also be equal to the above i or j.
  • the foregoing single wireless communication device when it is the first terminal or the second terminal, it may also need to send data to other wireless communication devices at the same time.
  • the second terminal transmits data to other wireless communication devices through two repeated transmissions.
  • the first terminal sends the direct connection data 1
  • the second terminal may also receive the direct connection data 2 sent by the third device at the same time.
  • the third device may be other than the first terminal and the second terminal in the above wireless communication scenario.
  • the wireless communication device also uses the third device to send the direct connection data 2 to the second terminal through two repeated transmissions as an example.
  • FIG. 9 shows a schematic diagram of a time slot structure during multiple direct data transmission involved in an embodiment of the present disclosure.
  • the second time slot 902 and the third time slot 903 there is a direct connection data sent by the second terminal to the first terminal, and there is a second time slot in the first time slot 901 and the third time slot 903.
  • the terminal receives the direct connection data 2 sent by the third device.
  • the feedback time interval is 1 time slot
  • the second terminal acts as the transmission device of the direct connection data 1 in the corresponding fourth time slot 904 and fifth time slot 905
  • the feedback information (respectively feedback information 906 and feedback information 907) fed back by the first terminal is received.
  • the second terminal as the receiving device of the direct data two, sends the feedback information corresponding to the direct data two to the third device in the third time slot 903 and the fifth time slot 905 (respectively feedback information 908 and feedback information 909) .
  • the second terminal can only receive direct data two or send direct data one in the third time slot 903 to send the service priority of direct data one
  • the second terminal can choose to send direct data one in the third time slot 903 instead of receiving the direct data two sent by the third device.
  • the second terminal only receives the feedback information fed back by the first terminal, and does not send feedback information to the third device in the fifth time slot 905.
  • the terminal sends, when the second terminal’s feedback information for the first repeated transmission of direct data 2 in the third time slot indicates that the second terminal has not successfully received the direct data 2, the third device can reselect subsequent available The transmission resource of sending direct data two to the second terminal.
  • the first terminal when direct communication is performed between terminals, the first terminal feedbacks the direct data repeatedly transmitted by the second terminal every time, which prevents the terminal from being in a half-duplex state.
  • the feedback information conflicts with other information, which improves the success rate of feedback on retransmitted data between terminals.
  • Fig. 10 is a block diagram showing a retransmission feedback device for direct communication according to another exemplary embodiment.
  • the device has the function of realizing the above example of the method of the first terminal, and the function can be realized by hardware, or by hardware executing corresponding software.
  • the device may be the base station described above, or it may be set in the base station; or it may be the terminal described above, or it may be set in the terminal.
  • the device 1000 may include: a generating module 1010, a first acquiring module 1020, and a first sending module 1030.
  • the generating module 1010 is configured to generate feedback information for each repeated transmission in the repeated transmission during the repeated transmission of the data directly connected to the second terminal, and the feedback information is used to indicate whether the data is received correctly.
  • the repeated transmission includes at least one repeated transmission;
  • the first obtaining module 1020 is configured to obtain feedback resources of each repeated transmission in the repeated transmission
  • the first sending module 1030 is configured to send feedback information corresponding to one repeated transmission to the second terminal on the respective feedback resources of each repeated transmission.
  • the generating module 1010 is configured to:
  • the generating module 1010 is configured to:
  • the first transmission result is used to indicate whether the direct data is correctly received during the i-th repeated transmission.
  • the generating module 1010 is configured to:
  • the second transmission result is used to indicate whether the direct data is correctly received during the first i repeated transmissions in the repeated transmission.
  • the second acquisition submodule is configured to acquire the feedback resource of the jth repeated transmission according to the time-frequency information of the transmission resource used for the jth repeated transmission and the feedback time interval.
  • the feedback time interval is a time interval pre-configured in the first terminal
  • the feedback time interval is a time interval carried in a configuration instruction sent by the configuration device to the first terminal.
  • the repeated transmission process is a repeated transmission process performed by the first terminal in a half-duplex working state.
  • the repeated transmission process is a partial repeated transmission process of at least two repeated transmission processes performed between the second terminal and the first terminal for the direct connection data.
  • the repeated transmission process is a blind repeated transmission process.
  • Fig. 11 is a block diagram showing a retransmission feedback device for direct communication according to an exemplary embodiment.
  • the device has the function of realizing the above-mentioned method example of the second terminal, and the function can be realized by hardware, or by hardware executing corresponding software.
  • the device may be the base station described above, or it may be set in the base station; or it may be the terminal described above, or it may be set in the terminal.
  • the apparatus 1100 may include: a second acquiring module 1110 and a second sending module 1120.
  • the second acquiring module 1110 is configured to acquire the feedback resource of each repeated transmission in the repeated transmission during the repeated transmission of the direct data with the first terminal;
  • the second sending module 1120 is configured to receive the feedback information sent by the first terminal corresponding to one repeated transmission on the respective feedback resources of each repeated transmission, and the feedback information is used to indicate whether it is received correctly
  • the repeated transmission includes at least one repeated transmission.
  • the second acquiring module 1110 includes a third acquiring sub-module and a fourth acquiring sub-module;
  • the third acquiring submodule is configured to acquire time-frequency information of the transmission resource used for the j-th repeated transmission in the repeated transmission, where j is an integer greater than or equal to 1;
  • the fourth acquiring submodule is configured to acquire the feedback resource of the jth repeated transmission according to the time-frequency information of the transmission resource used for the jth repeated transmission and the feedback time interval.
  • the feedback time interval is a time interval preconfigured in the second terminal
  • the feedback time interval is a time interval carried in a configuration instruction sent by the configuration device to the second terminal.
  • the device further includes:
  • the canceling module is configured to, when receiving the feedback information of the k-th repeated transmission in the repeated transmission, if the feedback information of the k-th repeated transmission indicates that the direct data is correctly received, cancel the Repeated transmission of directly connected data that has not yet been completed.
  • the repeated transmission process is a partial repeated transmission process of at least two repeated transmission processes performed between the second terminal and the first terminal for the direct connection data.
  • the repeated transmission process is a blind repeated transmission process.
  • the device provided in the above embodiment realizes its functions, only the division of the above functional modules is used for illustration. In actual applications, the above functions can be allocated by different functional modules according to actual needs. That is, the content structure of the device is divided into different functional modules to complete all or part of the functions described above.
  • An exemplary embodiment of the present disclosure also provides a retransmission feedback device, which can implement the retransmission feedback method of the first terminal provided in the present disclosure.
  • the device can be the base station described above, or it can be set in the base station; or it can be the terminal described above, or it can be set in the terminal.
  • the device includes a processor, and a memory for storing executable instructions of the processor. Wherein, the processor is configured to:
  • Transmission includes at least one repeated transmission
  • the processor is configured to:
  • the first transmission result is used to indicate whether the direct data is correctly received during the i-th repeated transmission.
  • the processor is configured to:
  • the second transmission result is used to indicate whether the direct data is correctly received during the first i repeated transmissions in the repeated transmission.
  • the acquiring the feedback resource of each repeated transmission in the repeated transmission includes:
  • the feedback time interval is a time interval pre-configured in the first terminal
  • the repeated transmission process is a repeated transmission process performed by the first terminal in a half-duplex working state.
  • the repeated transmission process is a partial repeated transmission process of at least two repeated transmission processes performed between the second terminal and the first terminal for the direct connection data.
  • the repeated transmission process is a blind repeated transmission process.
  • An exemplary embodiment of the present disclosure also provides a retransmission feedback device, which can implement the retransmission feedback method on the base station side provided in the present disclosure.
  • the device may be the base station described above, or it may be set in the base station; or it may be the terminal described above, or it may be set in the terminal.
  • the device includes a processor, and a memory for storing executable instructions of the processor. Wherein, the processor is configured to:
  • the feedback information sent by the first terminal corresponding to one repeated transmission is received on the respective feedback resources of each repeated transmission, and the feedback information is used to indicate whether the direct connection data is correctly received.
  • the feedback time interval is a time interval preconfigured in the second terminal
  • the feedback time interval is a time interval carried in a configuration instruction sent by the configuration device to the second terminal.
  • the processor is further configured to:
  • the repeated transmission process is a partial repeated transmission process of at least two repeated transmission processes performed between the second terminal and the first terminal for the direct connection data.
  • the repeated transmission process is a blind repeated transmission process.
  • the first terminal and the second terminal include hardware structures and/or software modules corresponding to each function.
  • the embodiments of the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Those skilled in the art can use different methods for each specific application to implement the described functions, but such implementation should not be considered as going beyond the scope of the technical solutions of the embodiments of the present disclosure.
  • the wireless communication device 1200 includes a transmitter 1201, a receiver 1202 and a processor 1203.
  • the processor 1203 may also be a controller, which is represented as "controller/processor 1203" in FIG. 12.
  • the wireless communication device 1200 may further include a modem processor 1205, where the modem processor 1205 may include an encoder 1206, a modulator 1207, a decoder 1208, and a demodulator 1209.
  • the transmitter 1201 adjusts (for example, analog conversion, filtering, amplification and up-conversion, etc.) the output samples and generates an uplink signal, which is transmitted via an antenna to the base station described in the above embodiment .
  • the antenna receives the downlink signal transmitted by the base station in the above embodiment.
  • the receiver 1202 adjusts (eg, filters, amplifies, downconverts, and digitizes, etc.) the signal received from the antenna and provides input samples.
  • the encoder 1206 receives service data and signaling messages to be transmitted on the uplink, and processes the service data and signaling messages (for example, formatting, encoding, and interleaving).
  • the modulator 1207 further processes (for example, symbol mapping and modulation) the encoded service data and signaling messages and provides output samples.
  • the demodulator 1209 processes (e.g., demodulates) the input samples and provides symbol estimates.
  • the decoder 1208 processes (eg, deinterleaves and decodes) the symbol estimation and provides decoded data and signaling messages sent to the wireless communication device 1200.
  • the encoder 1206, the modulator 1207, the demodulator 1209, and the decoder 1208 can be implemented by a synthesized modem processor 1205. These units are processed according to the wireless access technology adopted by the wireless access network (for example, the access technology of LTE and other evolved systems). It should be noted that when the wireless communication device 1200 does not include the modem processor 1205, the foregoing functions of the modem processor 1205 may also be performed by the processor 1203.
  • the embodiment of the present disclosure also provides a computer-readable storage medium on which a computer program is stored, and the computer program is executed by the processor of the first terminal to realize the retransmission of the direct communication of the first terminal as described above. Feedback method.
  • the embodiment of the present disclosure also provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by the processor of the second terminal, the retransmission of the direct communication of the second terminal as described above is realized. Feedback method.

Abstract

本公开是关于一种直连通信的重传反馈方法、装置及存储介质，属于通信技术领域。所述方法由第一终端执行，所述方法包括：在与第二终端进行直连数据的重复传输过程中，生成重复传输中的每一次重复传输的反馈信息，反馈信息用于指示是否正确接收到直连数据，该重复传输包含至少一次重复传输；获取重复传输中的每一次重复传输的反馈资源；在每一次重复传输的反馈资源上，向第二终端发送每一次重复传输的反馈信息。本公开在终端之间进行直连通信时，通过第一终端对第二终端每一次重复传输的直连数据均进行反馈，避免了终端在半双工状态下与多个其他设备进行数据传输时，反馈信息与其它信息发生冲突的问题，提高了终端之间对重传数据进行反馈的成功率。

Description

直连通信的重传反馈方法、装置及存储介质 技术领域
本公开实施例涉及通信技术领域，特别涉及一种直连通信的重传反馈方法、装置及存储介质。
背景技术
新一代互联网应用的不断涌现，驱使着无线通信技术的不断演进，从而也对无线通信技术提出了更高的要求。
在车联网通信(vehicle to everything，V2x)的通信场景下，单个设备可以通过半双工技术与其他设备之间实现数据传输，并且，在数据传输过程中有而反馈重传的需求。在相关技术中，对于半双工状态下的设备之间的反馈重传机制尚未有完善的解决方案。
发明内容
本公开实施例提供了一种直连通信的重传反馈方法、装置及存储介质。所述技术方案如下：
根据本公开实施例的第一方面，提供了一种直连通信的重传反馈方法，所述方法由第一终端执行，所述方法包括：
在与第二终端进行直连数据的重复传输过程中，生成所述重复传输中的每一次重复传输的反馈信息，所述反馈信息用于指示是否正确接收到所述直连数据，所述重复传输包含至少一次重复传输；
获取所述重复传输中的每一次重复传输的反馈资源；
在所述每一次重复传输各自的反馈资源上，向所述第二终端发送对应一次重复传输的反馈信息。
可选的，所述在与第二终端进行直连数据的重复传输过程中，生成所述重复传输中的每一次重复传输的反馈信息，包括：
在进行所述重复传输中的第i次重复传输后，生成所述第i次重复传输对应的反馈信息，i为大于或者等于1的整数。
可选的，所述在进行所述重复传输中的第i次重复传输后，生成所述第i次重复传输对应的反馈信息，包括：
在进行所述第i次重复传输后，根据在所述第i次重复传输的结束时刻的第一传输结果，生成所述第i次重复传输对应的反馈信息；
其中，所述第一传输结果用于指示在所述第i次重复传输过程中是否正确接收到所述直连数据。
可选的，所述在进行所述重复传输中的第i次重复传输后，生成所述第i次重复传输对应的反馈信息，包括：
在进行所述第i次重复传输后，根据在所述第i次重复传输的结束时刻的第二传输结果，生成所述第i次重复传输对应的反馈信息；
其中，所述第二传输结果用于指示在所述重复传输中前i次重复传输过程中是否正确接收到所述直连数据。
可选的，所述获取所述重复传输中的每一次重复传输的反馈资源，包括：
获取所述重复传输中的第j次重复传输所使用的传输资源的时频信息，j为大于或者等于1的整数；
根据所述第j次重复传输所使用的传输资源的时频信息以及反馈时间间隔，获取所述第j次重复传输的反馈资源。
可选的，所述反馈时间间隔是所述第一终端中预配置的时间间隔；
或者，
所述反馈时间间隔是配置设备发送给所述第一终端的配置指令中携带的时间间隔。
可选的，所述重复传输过程是所述第一终端在半双工工作状态下进行的重复传输过程。
可选的，所述重复传输过程，是所述第二终端与所述第一终端之间针对所述直连数据执行的至少两次重复传输过程中的部分重复传输过程。
可选的，所述重复传输过程是盲重复传输过程。
根据本公开实施例的第二方面，提供了一种直连通信的重传反馈方法，所述方法由第二终端执行，所述方法包括：
在与第一终端进行直连数据的重复传输过程中，获取所述重复传输中的每一次重复传输的反馈资源，所述重复传输包含至少一次重复传输；
在所述每一次重复传输的各自反馈资源上接收所述第一终端发送的，对应一次重复传输的反馈信息，所述反馈信息用于指示是否正确接收到所述直连数据。
可选的，所述在与第一终端进行直连数据的重复传输过程中，获取所述重复传输中的每一次重复传输的反馈资源，包括：
获取所述重复传输中的第j次重复传输所使用的传输资源的时频信息，j为大于或者等于1的整数；
根据所述第j次重复传输所使用的传输资源的时频信息以及反馈时间间隔，获取所述第j次重复传输的反馈资源。
可选的，所述反馈时间间隔是所述第二终端中预配置的时间间隔；
或者，
所述反馈时间间隔是配置设备发送给所述第二终端的配置指令中携带的时间间隔。
可选的，所述方法还包括：
在接收到所述重复传输中的第k次重复传输的反馈信息时，若所述第k次重复传输的反馈信息指示正确接收到所述直连数据，则取消对所述直连数据的、尚未完成的重复传输。
可选的，所述重复传输过程是所述第二终端在半双工工作状态下进行的重复传输过程。
可选的，所述重复传输过程，是所述第二终端与所述第一终端之间针对所述直连数据执行的至少两次重复传输过程中的部分重复传输过程。
可选的，所述重复传输过程是盲重复传输过程。
根据本公开实施例的第三方面，提供了一种直连通信的重传反馈装置，所述装置用于第一终端中，所述装置包括：
生成模块，用于在与第二终端进行直连数据的重复传输过程中，生成所述重复传输中的每一次重复传输的反馈信息，所述反馈信息用于指示是否正确接收到所述直连数据，所述重复传输包含至少一次重复传输；
第一获取模块，用于获取所述重复传输中的每一次重复传输的反馈资源；
第一发送模块，用于在所述每一次重复传输各自的反馈资源上，向所述第二终端发送对应一次重复传输的反馈信息。
可选的，所述生成模块，用于，
在进行所述重复传输中的第i次重复传输后，生成所述第i次重复传输对应的反馈信息，i为大于或者等于1的整数。
可选的，所述生成模块，用于，
在进行所述第i次重复传输后，根据在所述第i次重复传输的结束时刻的第一传输结果，生成所述第i次重复传输对应的反馈信息；
其中，所述第一传输结果用于指示在所述第i次重复传输过程中是否正确接收到所述直连数据。
可选的，所述生成模块，用于，
在进行所述第i次重复传输后，根据在所述第i次重复传输的结束时刻的第二传输结果，生成所述第i次重复传输对应的反馈信息；
其中，所述第二传输结果用于指示在所述重复传输中前i次重复传输过程中是否正确接收到所述直连数据。
可选的，所述第一获取模块，包括第一获取子模块和第二获取子模块；
所述第一获取子模块，用于获取所述重复传输中的第j次重复传输所使用的传输资源的时频信息，j为大于或者等于1的整数；
所述第二获取子模块，用于根据所述第j次重复传输所使用的传输资源的时频信息以及反馈时间间隔，获取所述第j次重复传输的反馈资源。
可选的，所述反馈时间间隔是所述第一终端中预配置的时间间隔；
或者，
所述反馈时间间隔是配置设备发送给所述第一终端的配置指令中携带的时间间隔。
可选的，所述重复传输过程是所述第一终端在半双工工作状态下进行的重复传输过程。
可选的，所述重复传输过程，是所述第二终端与所述第一终端之间针对所述直连数据执行的至少两次重复传输过程中的部分重复传输过程。
可选的，所述重复传输过程是盲重复传输过程。
根据本公开实施例的第四方面，提供了一种直连通信的重传反馈装置，所述装置用于第二终端中，所述装置包括：
第二获取模块，用于在与第一终端进行直连数据的重复传输过程中，获取 所述重复传输中的每一次重复传输的反馈资源，所述重复传输包含至少一次重复传输；
第二发送模块，用于在所述每一次重复传输的各自反馈资源上接收所述第一终端发送的，对应一次重复传输的反馈信息，所述反馈信息用于指示是否正确接收到所述直连数据。
可选的，第二获取模块，包括第三获取子模块和第四获取子模块；
所述第三获取子模块，用于获取所述重复传输中的第j次重复传输所使用的传输资源的时频信息，j为大于或者等于1的整数；
所述第四获取子模块，用于根据所述第j次重复传输所使用的传输资源的时频信息以及反馈时间间隔，获取所述第j次重复传输的反馈资源。
可选的，所述反馈时间间隔是所述第二终端中预配置的时间间隔；
或者，
所述反馈时间间隔是配置设备发送给所述第二终端的配置指令中携带的时间间隔。
可选的，所述装置还包括：
取消模块，用于在接收到所述重复传输中的第k次重复传输的反馈信息时，若所述第k次重复传输的反馈信息指示正确接收到所述直连数据，则取消对所述直连数据的、尚未完成的重复传输。
可选的，所述重复传输过程是所述第二终端在半双工工作状态下进行的重复传输过程。
可选的，所述重复传输过程，是所述第二终端与所述第一终端之间针对所述直连数据执行的至少两次重复传输过程中的部分重复传输过程。
可选的，所述重复传输过程是盲重复传输过程。
根据本公开实施例的第五方面，提供了一种直连通信的重传反馈装置，所述装置用于第一终端中，所述装置包括：
处理器；
用于存储所述处理器的可执行指令的存储器；
其中，所述处理器被配置为：
在与第二终端进行直连数据的重复传输过程中，生成所述重复传输中的每一次重复传输的反馈信息，所述反馈信息用于指示是否正确接收到所述直连数 据，所述重复传输包含至少一次重复传输；
获取所述重复传输中的每一次重复传输的反馈资源；
在所述每一次重复传输各自的反馈资源上，向所述第二终端发送对应一次重复传输的反馈信息。
根据本公开实施例的第六方面，提供了一种直连通信的重传反馈装置，所述装置用于第二终端中，所述装置包括：
处理器；
用于存储所述处理器的可执行指令的存储器；
其中，所述处理器被配置为：
在与第一终端进行直连数据的重复传输过程中，获取所述重复传输中的每一次重复传输的反馈资源，所述重复传输包含至少一次重复传输；
在所述每一次重复传输的各自反馈资源上接收所述第一终端发送的，对应一次重复传输的反馈信息，所述反馈信息用于指示是否正确接收到所述直连数据。
根据本公开实施例的第七方面，提供了一种计算机可读存储介质，所述计算机可读存储介质中包含可执行指令，所述第一终端中的处理器调用所述可执行指令以实现上述第一方面或者第一方面的任一可选方案所述的直连通信的重传反馈方法。
根据本公开实施例的第八方面，提供了一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中包含可执行指令，所述第二终端中的处理器调用所述可执行指令以实现上述第二方面或者第二方面的任一可选方案所述的直连通信的重传反馈方法。
本公开实施例提供的技术方案可以至少包括以下有益效果：
第一终端在与第二终端进行直连数据的重复传输过程中，生成重复传输中的每一次重复传输的反馈信息，该反馈信息用于指示是否正确接收到直连数据，该重复传输过程包含至少一次重复传输；并获取重复传输中的每一次重复传输的反馈资源；在每一次重复传输的反馈资源上，向第二终端发送每一次重复传 输的反馈信息。本公开所示的方案，在终端之间进行直连通信时，通过第一终端对第二终端每一次重复传输的直连数据均进行反馈，避免了终端在半双工状态下与多个其他设备进行数据传输时，反馈信息与其它信息发生冲突的问题，提高了终端之间对重传数据进行反馈的成功率。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是根据部分示例性实施例示出的一种直连通信的重传反馈方法所涉及的实施环境的示意图；
图2是本公开实施例涉及的一种通过盲重复传输的传输块的时隙分布示意图；
图3是本公开实施例涉及的一种时隙结构中包含传输块的结构示意图；
图4是本公开实施例提供的一种直连通信的重传反馈方法的方法流程图；
图5是本公开实施例提供的一种直连通信的重传反馈方法的方法流程图；
图6是本公开实施例涉及的一种重复传输过程的时隙示意图；
图7是本公开实施例涉及的一种反馈时隙的位置示意图；
图8是本公开实施例涉及的一种第一终端在重复传输过程中收发数据的示意图；
图9是本公开实施例涉及的一种多个直连数据传输时的时隙结构示意图；
图10是根据一示例性实施例示出的一种直连通信的重传反馈装置的框图；
图11是根据一示例性实施例示出的一种直连通信的重传反馈装置的框图；
图12是根据一示例性实施例示出的一种无线通信设备的结构示意图。
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、本公开的一些方面相一致的装置和方法的例子。
本公开实施例描述的网络架构以及业务场景是为了更加清楚地说明本公开实施例的技术方案，并不构成对本公开实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本公开实施例提供的技术方案对于类似的技术问题，同样适用。
为了便于理解，下面先对本公开实施例即将涉及的一些名词以及应用场景进行简单介绍。
半双工，指由于收发干扰的存在，无线通信设备在同一频段上不能同时接收或者发送数据。即，无线通信设备可能同时存在多种业务，有的业务需要无线通信设备发送业务数据，有的业务需要无线通信设备接收业务数据；如果无线通信设备在某一个时域符号上发送数据，那么该无线通信设备就无法在同一个时域符号上接收其他无线通信设备发送的数据，即使这些数据和该无线通信设备发送的数据占据的频域资源正交。
盲重复传输(blind re-transmission)，即在数据传输过程中，作为发送端的无线通信设备在没有接收到作为接收端的无线通信设备反馈的反馈信息，就直接对物理层的数据传输块(Transport Block)重复传输多次。
图1是根据部分示例性实施例示出的一种直连通信的重传反馈方法所涉及的实施环境的示意图，如图1所示，该实施环境可以包括：若干个终端110和基站120。
终端110是可以利用无线接入技术传输数据的无线通信设备。比如，终端110可以支持蜂窝移动通信技术，比如，可以支持第四代移动通信技术(the 4th generation mobile communication，4G)技术以及5G技术。或者，终端110也可以支持5G技术的更下一代移动通信技术。
例如，终端110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通信设备。
或者，终端110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。
或者，终端110也可以是用户终端设备，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置。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(remote terminal)、接入终端(access terminal)、用户装置(user terminal)、用户代理(user agent)、用户设备(user device)、或用户终端(user equipment，UE)。具体比如，终端110可以是智能手机、平板电脑、电子书阅读器等移动终端，或者，可以是智能眼镜、智能手表或者智能手环等智能可穿戴设备。
可选的，终端110是支持半双工技术的无线通信设备。
可选的，若干个终端110之间支持通过直连通信方式进行无线通信。
基站120可以是无线通信系统中的网络侧设备。其中，该无线通信系统可以是第四代移动通信技术系统，又称长期演进LTE(Long Term Evolution)系统；或者，该无线通信系统也可以是5G系统，又称新空口NR(New Radio)系统。或者，该无线通信系统也可以是5G系统的再下一代系统。
其中，基站120可以是4G系统中采用的演进型基站(eNB)。或者，基站120也可以是5G系统中采用集中分布式架构的基站(gNB)。当基站120采用集中分布式架构时，通常包括集中单元(central unit，CU)和至少两个分布单元(distributed unit，DU)。集中单元中设置有分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)层、无线链路层控制协议(Radio Link Control，RLC)层、媒体访问控制(Media Access Control，MAC)层的协议栈；分布单元中设置有物理(Physical，PHY)层协议栈，本公开实施例对基站120的具体实现方式不加以限定。
基站120和终端110之间可以通过无线空口建立无线连接。在不同的实施方式中，该无线空口是基于第四代移动通信网络技术(4G)标准的无线空口；或者，该无线空口是基于第五代移动通信网络技术(5G)标准的无线空口，比如该无线空口是新空口；或者，该无线空口也可以是基于5G的更下一代移动通信网络技术标准的无线空口。
可选的，上述无线通信系统还可以包含网络管理设备130。
若干个基站120分别与网络管理设备130相连。其中，网络管理设备130可以是无线通信系统中的核心网设备，比如，该网络管理设备130可以是演进的数据分组核心网(Evolved Packet Core，EPC)中的移动性管理实体(Mobility Management Entity，MME)。或者，该网络管理设备也可以是其它的核心网设备，比如服务网关(Serving GateWay，SGW)、公用数据网网关(Public Data Network  GateWay，PGW)、策略与计费规则功能单元(Policy and Charging Rules Function，PCRF)或者归属签约用户服务器(Home Subscriber Server，HSS)等。对于网络管理设备130的实现形态，本公开实施例不做限定。
在图1所示的无线通信场景中，多个终端之间同时进行通信是非常普遍的，例如，在V2x中，支持车载设备和车载设备(vehicle to vehicle，V2V)之间，车载设备和路边设备(vehicle to Infrastructure，V2I)之间，以及车载设备和手持设备(vehicle to pedestrian，V2P)之间的通信等。为了提高V2x的通信效率，相关技术提供了蜂窝网络对于车联网V2x通信的支持，即C-V2x(cellular based V2x)。在C-V2x中车载设备和其他设备之间的通信可以通过基站以及核心网进行中转，即利用原有蜂窝网络中终端和基站之间的通信链路进行通信(上行或者下行通信)；也可以直接通过设备之间的直连链路进行通信(Sidelink副链路通信)。Sidelink通信与Uu接口通信相比，Sidelink通信具有时延短，开销小等特点，非常适合用于车载设备和地理位置接近的其他周边设备直接的通信。
相关技术中，LTE中V2x的Sidelink通信只能支持一些基础的安全方面的V2x应用，如交换CAM(Cooperative Awareness Messages)或DENM(Decentralized Environmental Notification Message)等基础安全信息(BSM–Basic Safety Message)进行语音广播通信等。随着自动驾驶等技术的发展，为了支持新的V2x业务，对于V2x技术的性能又提出了新的要求。利用5G NR系统支持新的V2x的通信服务和场景已经被3GPP(3rd Generation Partnership Project，第三代合作伙伴计划)计划为Rel16的一项重要内容。3GPP SA1(Service Requirement)工作组已经设立了一些新的V2x通信需要满足的业务需求，其中包括车队管理(Vehicles Platooning)，感知扩展(Extended Sensors)，先进驾驶(Advanced Driving)，和远程驾驶(remote driving)等。总体来说，对5G NR系统的V2x中的Sidelink通信提出了更高的要求。
目前，关于对5G NR系统的V2x中的Sidelink通信的讨论中，RAN1决议支持对于无线通信场景中直连通信的单播业务以及组播业务使用物理层HARQ(Hybrid Automatic Repeat Request，混合自动重传请求)的反馈重传机制；同时，为了解决无线通信设备支持半双工而存在的问题，还采用了盲重复传输技术，这样即使在多次重传过程中的一次传输由于半双工的原因(即作为接收端的无线通信设备在同一时域资源上正在发送数据)没有被作为接收端的无线通信设 备正确接收，但是作为接收端的无线通信设备也可以通过接收其他时域资源上的重复传输正确得到数据，从而保证了数据传输的可靠性。并且，对于上述直连通信的物理层HARQ的反馈，RAN1决议支持通过预配置或者配置的方法设定反馈信息传输距离对应数据传输的时间间隔。即，接收端的无线通信设备在发送端的无线通信设备进行盲重复传输之后，接收端的无线通信设备对本次盲重复传输的传输块进行反馈，而发送端的无线通信设备也根据接收端的无线通信设备的反馈，确定是否进一步进行HARQ重传。
请参考图2，其示出了本公开实施例涉及的一种通过盲重复传输的传输块的时隙分布示意图。如图2所示，发送端的无线通信设备进行的盲重复传输的次数为两次，且分别在时隙1和时隙2中，当接收端的无线通信设备在最后一次传输的时隙(时隙2)之后，在时隙m中，对本次盲重复传输进行HARQ的反馈，该时隙m和时隙2之间的时间间隔即为上述通过预配置或者配置的方法设定反馈信息传输距离对应数据传输的时间间隔，可选的，在本公开实施例中，将该预配置或者配置的方法设定反馈信息传输距离对应数据传输的时间间隔称为预配值。
由于在无线通信场景中，一个无线通信设备往往还需要通过盲重复传输发送数据，例如，当接收端的无线通信设备在图2所示的时隙2中也有需要通过盲重复传输发送的数据，且此次盲重复传输发送的数据所占据的时域资源与图2所示的传输块占据的时域资源有重复，也处于本次盲重复传输的最后一次传输时，由于该接收端的无线通信设备是通过半双工工作的，在时隙2中只能接收数据或者发送数据。请参考图3，其示出了本公开实施例涉及的一种时隙结构中包含传输块的结构示意图。如图3所示，其中包含了时隙1，时隙2，时隙3，时隙m，时隙1和时隙3中包含的传输块一是发送端的无线通信设备发送给接收端的无线通信设备的传输块，时隙2和时隙3中包含的传输块二是接收端的无线通信设备需要发送给其他无线通信设备的传输块，时隙m是间隔预配值之后的时隙，该接收端的无线通信设备作为传输块一的接收端，需要在时隙m中向发送端的无线通信设备发送反馈信息一，该接收端的无线通信设备作为传输块二的发送端，又需要在时隙m中接收其他无线通信设备的反馈信息二，此时，由于该接收端的无线通信设备是通过半双工工作的，对应在该时隙m中，也只能发送反馈信息一或者接收反馈信息二，无论该接收端的无线通信设备选择了哪种，都缺少另一种盲重复传输的反馈信息，导致传输过程中出现错误。
为了解决上述无线通信设备盲重复传输过程中存在的问题，下面，将通过几个实施例，对本公开提供的技术方案进行介绍说明。
请参考图4，其示出了本公开实施例提供的一种直连通信的重传反馈方法的方法流程图。该方法可应用于图1所示的无线通信场景中，由图1所示场景中的无线通信设备执行，如图4所示，该方法可以包括如下几个步骤：
在步骤401中，第一终端在与第二终端进行直连数据的重复传输过程中，生成重复传输中的每一次重复传输的反馈信息。
其中，反馈信息用于指示是否正确接收到直连数据，上述重复传输过程包含至少一次重复传输。
可选的，该反馈信息是基于HARQ机制的反馈信息。
在步骤402中，第一终端获取重复传输中的每一次重复传输的反馈资源。
在步骤403中，第一终端在每一次重复传输各自的反馈资源上，向第二终端发送对应一次重复传输的反馈信息。
可选的，上述在与第二终端进行直连数据的重复传输过程中，生成重复传输中的每一次重复传输的反馈信息，包括：
在进行重复传输中的第i次重复传输后，生成第i次重复传输对应的反馈信息，i为大于或者等于1的整数。
可选的，在每一次重复传输各自的反馈资源上，向第二终端发送对应一次重复传输的反馈信息时，对于上述每一次重复传输中的第i次重复传输，第一终端在第i次重复传输的反馈资源上，向第二终端发送第i次重复传输的反馈信息。
可选的，上述在进行重复传输中的第i次重复传输后，生成第i次重复传输对应的反馈信息，包括：
在进行第i次重复传输后，根据在第i次重复传输的结束时刻的第一传输结果，生成第i次重复传输对应的反馈信息；
其中，第一传输结果用于指示在第i次重复传输过程中是否正确接收到直连数据。
可选的，上述在进行重复传输中的第i次重复传输后，生成第i次重复传输对应的反馈信息，包括：
在进行第i次重复传输后，根据在第i次重复传输的结束时刻的第二传输结果，生成第i次重复传输对应的反馈信息；
其中，第二传输结果用于指示在重复传输中前i次重复传输过程中是否正确接收到直连数据。
可选的，上述获取重复传输中的每一次重复传输的反馈资源，包括：
获取重复传输中的第j次重复传输所使用的传输资源的时频信息，j为大于或者等于1的整数；
根据第j次重复传输所使用的传输资源的时频信息以及反馈时间间隔，获取第j次重复传输的反馈资源。
可选的，该反馈时间间隔是第一终端中预配置的时间间隔；
或者，
该反馈时间间隔是配置设备发送给第一终端的配置指令中携带的时间间隔。
可选的，上述重复传输过程是第一终端在半双工工作状态下进行的重复传输过程。
可选的，上述重复传输过程，是所述第二终端与所述第一终端之间针对所述直连数据执行的至少两次重复传输过程中的部分重复传输过程。
可选的，上述重复传输过程是盲重复传输过程。
在步骤404中，第二终端在与第一终端进行直连数据的重复传输过程中，获取重复传输中的每一次重复传输的反馈资源。
在步骤405中，第二终端在每一次重复传输的各自反馈资源上接收第一终端发送的，对应一次重复传输的反馈信息。
可选的，上述在与第一终端进行直连数据的重复传输过程中，获取重复传输中的每一次重复传输的反馈资源，包括：
获取重复传输中的第j次重复传输所使用的传输资源的时频信息，j为大于或者等于1的整数；
根据第j次重复传输所使用的传输资源的时频信息以及反馈时间间隔，获取第j次重复传输的反馈资源。
可选的，该反馈时间间隔是第二终端中预配置的时间间隔；
或者，
该反馈时间间隔是配置设备发送给第二终端的配置指令中携带的时间间隔。
可选的，该方法还包括：
在接收到重复传输中的第k次重复传输的反馈信息时，若第k次重复传输的反馈信息指示正确接收到直连数据，则取消对直连数据的、尚未完成的重复传输。
可选的，上述重复传输过程是第二终端在半双工工作状态下进行的重复传输过程。
可选的，上述重复传输过程，是第二终端与第一终端之间针对直连数据执行的至少两次重复传输过程中的部分重复传输过程。
可选的，上述重复传输过程是盲重复传输过程。
综上所述，本公开所示的方案，在终端之间进行直连通信时，通过第一终端对第二终端每一次重复传输的直连数据均进行反馈，避免了终端在半双工状态下与多个其他设备进行数据传输时，反馈信息与其它信息发生冲突的问题，提高了终端之间对重传数据进行反馈的成功率。
在一种可能实现的方式中，当图4所示的第一终端与第二终端应用于上述图1所示的无线通信场景中时，请参考图5，其示出了本公开实施例提供的一种直连通信的重传反馈方法的方法流程图。该方法可由图1所示场景中的无线通信设备执行，如图5所示，该方法可以包括如下几个步骤：
在步骤501中，第二终端通过重复传输向第一终端发送直连数据。
相应的，第一终端接收第二终端通过重复传输发送的直连数据。
其中，该重复传输过程包含至少一次重复传输。
上述第一终端和第二终端可以是进行直连通信的两个终端。其中，第二终端是无线通信场景中发送直连数据的无线通信设备，即是上述作为发送端的无线通信设备；第一终端是接收该第二终端发送的直连数据的无线通信设备，即是上述作为接收端的无线通信设备。
可选的，第二终端可以是上图1所示无线通信环境中的两个终端，进一步的，第二终端可以是上述图1中的车载设备、路边设备、用户终端设备等。并且该第二终端可以采用物理层的HARQ重传技术向该无线通信环境中的其他无线通信设备传输数据。第一终端也可以是上图1所示无线通信环境中的终端，并且可以对第二终端重传的数据进行接收。
可选的，第二终端采用的重传技术还可以是无线链路控制(Radio Link Control，RLC)层的自动重复请求(Automatic Repeat Request，ARQ)。
其中，上述重复传输过程可以是盲重复传输过程。第二终端可以按照盲重复传输机制，结合预先设置的重传策略，直接对一个数据块进行多次重复传输。比如，按照预先确定的重传次数，在多个连续或者不连续的时频资源上，对同一数据块进行多次重复传输，第一终端也可以按照盲重复传输机制对第二终端重传的传输块进行接收。
可选的，该第二终端通过重复传输向第一终端发送重复传输的过程可以是该第二终端在半双工工作状态下进行的重复传输过程。第一终端也可以是在半双工工作状态下接收该第二终端发送的直连数据。
可选的，本公开实施例提供的方案中，第一终端或者第二终端也可以通过全双工机制进行数据的接收或发送。
在步骤502中，第一终端在与第二终端进行直连数据的重复传输过程中，生成重复传输中的每一次重复传输的反馈信息。
其中，该反馈信息用于指示是否正确接收到直连数据。
第一终端在接收到第二终端发送的直连数据时，可以针对本次传输的该直连数据生成一个反馈信息，从而进一步告知第二终端自己是否成功正确接收到该直连数据。
可选的，对应于物理层HARQ重传机制，该反馈信息可以是NACK(Negative Acknowledgement，否定字符)或者ACK(Acknowledgement，确认字符)。即，当第一终端成功接收到第二终端发送的直连数据，并且正确恢复出第二终端发送的直连数据，此时，第一终端可以针对本次传输的直连数据生成ACK；当第一终端接收到第二终端发送的直连数据失败，或者并未将第二终端发送的直连数据正确恢复，此时，第一终端可以针对本次传输的直连数据生成NACK。
可选的，在无线通信场景中，对于单播通信，第一终端在正确恢复出直连数据时，可以向第二终端反馈ACK；第一终端未正确恢复出直连数据时，可以向第二终端反馈NACK。可选的，对于组播通信，第一终端在正确接收到直连数据时，可以向第二终端反馈ACK；第一终端在错误接收直连数据时，可以向第二终端反馈NACK。或者，对于组播通信，第一终端只在错误接收直连数据时，向第二终端反馈NACK；第一终端在正确接收直连数据时，可以对第二终端不做反馈。
可选的，第一终端可以在进行重复传输中的第i次重复传输后，生成第i次重复传输对应的反馈信息，i为大于或者等于1的整数。
即，当第二终端通过重复传输多次将直连数据发送给第一终端，第一终端可以对其中任何一次重复传输生成该次重复传输对应的反馈信息。比如，第二终端将直连数据一通过4次重复传输向第一终端发送，第一终端可以对这4次重复传输中的第一次重复传输生成第一次重复传输对应的反馈信息，对这4次重复传输中的第二次重复传输生成第二次重复传输对应的反馈信息，以此类推。
在一种可能实现的方式中，上述第一终端在进行第i次重复传输后，可以根据在第i次重复传输的结束时刻的第一传输结果，生成第i次重复传输对应的反馈信息。其中，第一传输结果用于指示在第i次重复传输过程中是否正确接收到直连数据。
可选的，第一终端可以得到第i次重复传输的第一传输结果，根据该第一传输结果生成第i次重复传输对应的反馈信息。即，当第一传输结果指示第一终端在第i次重复传输过程中正确接收到直连数据时，该第一终端可以生成与该第一传输结果对应的反馈信息，可选的，该反馈信息可以是上述ACK。当第一传输结果指示第一终端在第i次重复传输过程中未正确接收到直连数据时，该第一终端也可以生成与该第一传输结果对应的反馈信息，可选的，该反馈信息可以是上述NACK。
在一种可能实现的方式中，第一终端在进行第i次重复传输后，可以根据在第i次重复传输的结束时刻的第二传输结果，生成第i次重复传输对应的反馈信息。其中，第二传输结果用于指示在重复传输中前i次重复传输过程中是否正确接收到直连数据。
可选的，第一终端可以得到前i次重复传输的第二传输结果，根据该第二传输结果生成第i次重复传输对应的反馈信息。即，当第二传输结果指示第一终端在前i次重复传输过程中正确接收到直连数据时，该第一终端可以生成与该第二传输结果对应的反馈信息，可选的，该反馈信息也可以是上述ACK。当第二传输结果指示第一终端在前i次重复传输过程中未正确接收到直连数据时，该第一终端也可以生成与该第二传输结果对应的反馈信息，可选的，该反馈信息也可以是上述NACK。
也就是说，当第一终端在某一次重复传输过程中正确接收到直连数据时，第一终端在向第二终端反馈后续各次重复传输的反馈信息时，均可以采用对该次重复传输生成的反馈信息进行反馈。
请参考图6，其示出了本公开实施例涉及的一种重复传输过程的时隙示意 图。如图6所示，其中包含了第一时隙601，第二时隙602，第三时隙603，第四时隙604，第二终端通过4次重复传输向第一终端传输直连数据一，这4次重复传输所在的时隙如图6所示，第一终端在第二终端进行的第一次重复传输中接收该直连数据一失败了，并向第二终端反馈了NACK，在第二次重复传输中接收直连数据一成功了，并向第二终端反馈了ACK，在第三次重复传输中，生成第三次重复传输对应的反馈信息时，第一终端可以根据第二传输结果，确定出在该次重复传输之前，第一终端已经正确接收到直连数据一了，因此，第一终端可以选择第二次生成的ACK作为第三次重复传输的反馈信息，并向第二终端进行反馈。可选的，在第四次重复传输中可以参考第三次重复传输，进而，即使第四次重复传输过程中，对第四次重复传输的直连数据一也接收失败了，也可以向第二终端按照接收正确的反馈信息进行反馈。
可选的，上述第二终端与第一终端进行的重复传输过程，可以是第二终端与第一终端之间针对直连数据执行的至少两次重复传输过程中的部分重复传输过程。
在本公开实施例所示的方案中，第一终端和第二终端在按照盲重复传输机制进行重复传输的过程中，对于同一份直连数据的至少两次重复传输，第一终端可以对其中部分重复传输过程进行反馈，而对于其它重复传输过程则可以不反馈。
例如，上述重复传输过程的次数为4次，第一终端可以只对这4次重复传输过程中的部分重复传输过程进行反馈，相应的，第二终端可以只对这4次重复传输过程中的部分重复传输过程进行相应的反馈信息的监听。比如，第一终端可以只对这4次重复传输过程中的第二次和第四次重复传输过程的接收结果进行反馈，相应的，第二终端只针对这4次重复传输过程中的第二次和第四次重复传输过程的传输结果进行监听。
其中，第一终端和第二终端中可以通过预先配置的方式确定上述重复传输过程是对同一份直连数据的至少两次重复传输过程中的哪些传输过程。
可选的，第二终端也可以通过指示信令告知第一终端，上述重复传输过程是对同一份直连数据的至少两次重复传输过程中的哪些传输过程。
在步骤503中，第一终端获取重复传输中的每一次重复传输的反馈资源。
第一终端在对第二终端通过重复传输发送的直连数据进行反馈之前，除了生成相应的反馈信息，还需要确定相应次数的反馈资源，在相应的反馈资源上 将生成的反馈信息反馈给第二终端。该反馈资源可以包括时域资源，也可以包括频域资源，也可以两者都包括。
可选的，第一终端可以通过获取重复传输中的第j次重复传输所使用的传输资源的时频信息，j为大于或者等于1的整数，第一终端根据第j次重复传输所使用的传输资源的时频信息以及反馈时间间隔，获取第j次重复传输的反馈资源。
以获取传输资源的时频信息为当前第j次重复传输的时隙为例，当第一终端需要对第j次重复传输进行反馈时，第一终端可以得知第j次重复传输的时隙位置，并根据反馈时间间隔，计算出第j次重复传输的反馈时隙，在该反馈时隙内，将生成的反馈信息反馈给第二终端。即，该反馈时隙便是第一终端获取的反馈资源。
例如，请参考图7，其示出了本公开实施例涉及的一种反馈时隙的位置示意图。如图7所示，第一终端在第一时隙701内接收到第二终端发送的第j次重复传输的直连数据，第一终端可以根据第一时隙701以及反馈时间间隔获取到第二时隙702为对应于第j次重复传输的反馈资源，即，第一终端可以在第二时隙702内向第二终端发送生成的反馈信息。
可选的，该第j次重复传输过程可以是上述重复传输过程中的任一传输过程。
其中，该第j次重复传输可以是上述第i次重复传输，即j可以等于i。
在一种可能实现的方式中，上述反馈时间间隔是第一终端中预配置的时间间隔；即，第一终端可以通过自身芯片中预先设置的时间间隔来计算出反馈资源。可选的，在上述无线通信场景中，不同无线设备之间预先设置的时间间隔可以相同，以便于发送端的无线通信设备在接收反馈信息的时隙内，接收端的无线通信设备也在相同的时隙内向发送端的无线通信设备反馈相应的反馈信息。
在一种可能实现的方式中，该反馈时间间隔可以是配置设备发送给第一终端的配置指令中携带的时间间隔。
其中，该配置设备可以是基站。即，当V2x通信场景下的两个车辆网通信设备在进行数据的重复传输时，两者的反馈时间间隔可以由基站通过配置指令预先告知这两个车辆网通信设备。
或者，上述配置设备也可以是第一终端和第二终端中的任一终端。比如， 作为接收直连数据的第一终端可以直接接收发送直连数据的第二终端发送的配置指令，得到该反馈时间间隔；或者，第二终端可以接收第一终端发送的配置指令，得到该反馈时间间隔。
在步骤504中，第一终端在每一次重复传输各自的反馈资源上，向第二终端发送对应一次重复传输的反馈信息。
可选的，该步骤中，当上述第一终端与第二终端之间是针对重复传输中的直连数据执行的至少两次重复传输过程中的部分重复传输过程时，第一终端也在相应的部分重复传输的反馈资源上，向第二终端发送部分重复传输对应的反馈信息。
在一种可能实现的方式中，以第一终端获得的反馈时间间隔是1个时隙为例，请参考图8，其示出了本公开实施例涉及的一种第一终端在重复传输过程中收发数据的示意图。如图8所示，第二终端将直连数据一分别在四个时隙(第一时隙801，第二时隙802，第三时隙803，第四时隙804)内向第一终端发送直连数据，当第一终端需要对每次接收的直连数据一进行反馈时，第一终端可以根据每次接收到直连数据一的时隙以及反馈时间间隔得到相应的反馈资源，即图8中所示的反馈资源一805，反馈资源二806，反馈资源三807，反馈资源四808，并在各个反馈资源上分别向第二终端反馈相应的反馈信息。
可选的，上述第一终端进行反馈的符号位置也可以预先设置。例如，如上述图8所示，第一终端在向第二终端进行反馈时，均在各个反馈资源对应的时隙中的倒数第二个符号以及倒数第三个符号上发送反馈信息。即，第一终端在得到发送反馈信息的时隙时，便可以在相应的时隙内对应的符号位置向第二终端发送反馈信息。
在步骤505中，第二终端在与第一终端进行直连数据的重复传输过程中，获取重复传输中的每一次重复传输的反馈资源。
其中，该步骤反馈资源的获取，可以参考上述步骤503中的描述，此处不再赘述。
在步骤506中，第二终端在每一次重复传输各自的反馈资源上接收第一终端发送的，对应一次重复传输的反馈信息。
可选的，该步骤中，当上述第一终端与第二终端之间是针对重复传输中的直连数据执行的至少两次重复传输过程中的部分重复传输过程时，第二终端也在相应的部分重复传输的反馈资源上，接收第一终端针对部分重复传输发送的 反馈信息。
在一种可能实现的方式中，第二终端可以在接收到重复传输中的第k次重复传输的反馈信息时，若第k次重复传输的反馈信息指示正确接收到直连数据，则取消对直连数据的、尚未完成的重复传输。例如，第二终端需要将直连数据一对第一终端进行4次重复传输，在接收到第一终端对第2次重复传输的反馈信息，且该反馈信息指示第一终端已经正确接收到本次传输的直连数据，此时，如果第二终端尚未完成对直连数据一的第三次以及第四次重复传输时，则该第二终端可以取消对直连数据一的第三次以及第四次的重复传输。进一步的，第二终端还可以利用对直连数据一的第三次以及第四次的重复传输的时域资源，对直连数据二进行传输。即，选择其他需要传输的数据进行传输，从而提高时域资源的利用率。可选的，上述k也可以等于上述的i或者j。
可选的，上述单个无线通信设备(无论是第一终端还是第二终端)在进行数据接收时，还可能同时需要向其他无线通信设备发送数据，例如，第二终端通过两次重复传输在向第一终端发送直连数据一时，该第二终端还可能同时接收到第三设备发送的直连数据二，该第三设备可以是上述无线通信场景中不同于第一终端和第二终端的其他无线通信设备，也以第三设备向第二终端通过两次重复传输发送直连数据二为例。
请参考图9，其示出了本公开实施例涉及的一种多个直连数据传输时的时隙结构示意图。如图9所示，在第二时隙902和第三时隙903中有第二终端向第一终端发送的直连数据一，在第一时隙901和第三时隙903中有第二终端接收第三设备发送的直连数据二，在反馈时间间隔均为1个时隙时，第二终端作为直连数据一的发送设备，在相应的第四时隙904和第五时隙905内，接收第一终端反馈的反馈信息(分别是反馈信息906和反馈信息907)。第二终端作为直连数据二的接收设备，在第三时隙903和第五时隙905内，向第三设备发送直连数据二对应的反馈信息(分别是反馈信息908和反馈信息909)。可选的，当第二终端处于半双工工作状态时，第二终端在第三时隙903内只能接收直连数据二或者发送直连数据一，以发送直连数据一的业务优先级高于接收直连数据二的业务优先级为例，第二终端可以在第三时隙903内选择发送直连数据一，而不接收第三设备发送的直连数据二，相应的在第五时隙905内，第二终端也只接收第一终端反馈的反馈信息，而不会在第五时隙905内向第三设备发送反馈信息。
虽然第三设备在第五时隙内的反馈资源上没有接收到第二终端对第二次重复传输直连数据二的反馈信息，但是，第三设备可以根据第二终端在第三时隙内对第一次重复传输直连数据二的反馈信息，确定自己是否仍然需要向第二终端发送直连数据二。可选的，当第二终端在第三时隙内对第一次重复传输直连数据二的反馈信息指示第二终端成功接收到该直连数据二时，第三设备可以不需要向第二终端发送，当第二终端在第三时隙内对第一次重复传输直连数据二的反馈信息指示第二终端并未成功接收到该直连数据二时，第三设备可以重新选择后续可用的传输资源向第二终端发送直连数据二。
综上所述，本公开所示的方案，在终端之间进行直连通信时，通过第一终端对第二终端每一次重复传输的直连数据均进行反馈，避免了终端在半双工状态下与多个其他设备进行数据传输时，反馈信息与其它信息发生冲突的问题，提高了终端之间对重传数据进行反馈的成功率。
下述为本公开装置实施例，可以用于执行本公开方法实施例。对于本公开装置实施例中未披露的细节，请参照本公开方法实施例。
图10是根据另一示例性实施例示出的一种直连通信的重传反馈装置的框图。该装置具有实现上述第一终端的方法示例的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该装置可以是上文介绍的基站，也可以设置在基站中；或者也可以是上文介绍的终端，也可以设置在终端中。该装置1000可以包括：生成模块1010、第一获取模块1020和第一发送模块1030。
所述生成模块1010，用于在与第二终端进行直连数据的重复传输过程中，生成所述重复传输中的每一次重复传输的反馈信息，所述反馈信息用于指示是否正确接收到所述直连数据，所述重复传输包含至少一次重复传输；
所述第一获取模块1020，用于获取所述重复传输中的每一次重复传输的反馈资源；
所述第一发送模块1030，用于在所述每一次重复传输各自的反馈资源上，向所述第二终端发送对应一次重复传输的反馈信息。
可选的，所述生成模块1010，用于，
在进行所述重复传输中的第i次重复传输后，生成所述第i次重复传输对应的反馈信息，i为大于或者等于1的整数。
可选的，所述生成模块1010，用于，
在进行所述第i次重复传输后，根据在所述第i次重复传输的结束时刻的第一传输结果，生成所述第i次重复传输对应的反馈信息；
其中，所述第一传输结果用于指示在所述第i次重复传输过程中是否正确接收到所述直连数据。
可选的，所述生成模块1010，用于，
在进行所述第i次重复传输后，根据在所述第i次重复传输的结束时刻的第二传输结果，生成所述第i次重复传输对应的反馈信息；
其中，所述第二传输结果用于指示在所述重复传输中前i次重复传输过程中是否正确接收到所述直连数据。
可选的，所述第一获取模块1020，包括第一获取子模块和第二获取子模块；
所述第一获取子模块，用于获取所述重复传输中的第j次重复传输所使用的传输资源的时频信息，j为大于或者等于1的整数；
所述第二获取子模块，用于根据所述第j次重复传输所使用的传输资源的时频信息以及反馈时间间隔，获取所述第j次重复传输的反馈资源。
可选的，所述反馈时间间隔是所述第一终端中预配置的时间间隔；
或者，
所述反馈时间间隔是配置设备发送给所述第一终端的配置指令中携带的时间间隔。
可选的，所述重复传输过程是所述第一终端在半双工工作状态下进行的重复传输过程。
可选的，所述重复传输过程，是所述第二终端与所述第一终端之间针对所述直连数据执行的至少两次重复传输过程中的部分重复传输过程。
可选的，所述重复传输过程是盲重复传输过程。
图11是根据一示例性实施例示出的一种直连通信的重传反馈装置的框图。该装置具有实现上述第二终端的方法示例的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该装置可以是上文介绍的基站，也可以设置在基站中；或者也可以是上文介绍的终端，也可以设置在终端中。该装置1100可以包括：第二获取模块1110和第二发送模块1120。
所述第二获取模块1110，用于在与第一终端进行直连数据的重复传输过程中，获取所述重复传输中的每一次重复传输的反馈资源；
所述第二发送模块1120，用于在所述每一次重复传输的各自反馈资源上接收所述第一终端发送的，对应一次重复传输的反馈信息，所述反馈信息用于指示是否正确接收到所述直连数据，所述重复传输包含至少一次重复传输。
可选的，所述第二获取模块1110，包括第三获取子模块和第四获取子模块；
所述第三获取子模块，用于获取所述重复传输中的第j次重复传输所使用的传输资源的时频信息，j为大于或者等于1的整数；
所述第四获取子模块，用于根据所述第j次重复传输所使用的传输资源的时频信息以及反馈时间间隔，获取所述第j次重复传输的反馈资源。
可选的，所述反馈时间间隔是所述第二终端中预配置的时间间隔；
或者，
所述反馈时间间隔是配置设备发送给所述第二终端的配置指令中携带的时间间隔。
可选的，所述装置还包括：
取消模块，用于在接收到所述重复传输中的第k次重复传输的反馈信息时，若所述第k次重复传输的反馈信息指示正确接收到所述直连数据，则取消对所述直连数据的、尚未完成的重复传输。
可选的，所述重复传输过程是所述第二终端在半双工工作状态下进行的重复传输过程。
可选的，所述重复传输过程，是所述第二终端与所述第一终端之间针对所述直连数据执行的至少两次重复传输过程中的部分重复传输过程。
可选的，所述重复传输过程是盲重复传输过程。
需要说明的一点是，上述实施例提供的装置在实现其功能时，仅以上述各个功能模块的划分进行举例说明，实际应用中，可以根据实际需要而将上述功能分配由不同的功能模块完成，即将设备的内容结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
本公开一示例性实施例还提供了一种重传反馈装置，能够实现本公开提供的第一终端的重传反馈方法。该装置可以是上文介绍的基站，也可以设置在基 站中；或者也可以是上文介绍的终端，也可以设置在终端中。该装置包括：处理器，以及用于存储处理器的可执行指令的存储器。其中，所述处理器被配置为：
在与第二终端进行直连数据的重复传输过程中，生成所述重复传输中的每一次重复传输的反馈信息，所述反馈信息用于指示是否正确接收到所述直连数据，所述重复传输包含至少一次重复传输；
获取所述重复传输中的每一次重复传输的反馈资源；
在所述每一次重复传输各自的反馈资源上，向所述第二终端发送对应一次重复传输的反馈信息。
可选的，所述在与第二终端进行直连数据的重复传输过程中，生成所述重复传输中的每一次重复传输的反馈信息，所述处理器被配置为：
在进行所述重复传输中的第i次重复传输后，生成所述第i次重复传输对应的反馈信息，i为大于或者等于1的整数。
可选的，所述在进行所述重复传输中的第i次重复传输后，生成所述第i次重复传输对应的反馈信息，所述处理器被配置为：
在进行所述第i次重复传输后，根据在所述第i次重复传输的结束时刻的第一传输结果，生成所述第i次重复传输对应的反馈信息；
其中，所述第一传输结果用于指示在所述第i次重复传输过程中是否正确接收到所述直连数据。
可选的，所述在进行所述重复传输中的第i次重复传输后，生成所述第i次重复传输对应的反馈信息，所述处理器被配置为：
在进行所述第i次重复传输后，根据在所述第i次重复传输的结束时刻的第二传输结果，生成所述第i次重复传输对应的反馈信息；
其中，所述第二传输结果用于指示在所述重复传输中前i次重复传输过程中是否正确接收到所述直连数据。
可选的，所述获取所述重复传输中的每一次重复传输的反馈资源，包括：
获取所述重复传输中的第j次重复传输所使用的传输资源的时频信息，j为大于或者等于1的整数；
根据所述第j次重复传输所使用的传输资源的时频信息以及反馈时间间隔，获取所述第j次重复传输的反馈资源。
可选的，所述反馈时间间隔是所述第一终端中预配置的时间间隔；
或者，
所述反馈时间间隔是配置设备发送给所述第一终端的配置指令中携带的时间间隔。
可选的，所述重复传输过程是所述第一终端在半双工工作状态下进行的重复传输过程。
可选的，所述重复传输过程，是所述第二终端与所述第一终端之间针对所述直连数据执行的至少两次重复传输过程中的部分重复传输过程。
可选的，所述重复传输过程是盲重复传输过程。
本公开一示例性实施例还提供了一种重传反馈装置，能够实现本公开提供的基站侧的重传反馈方法。该装置可以是上文介绍的基站，也可以设置在基站中；或者也可以是上文介绍的终端，也可以设置在终端中。该装置包括：处理器，以及用于存储处理器的可执行指令的存储器。其中，所述处理器被配置为：
在与第一终端进行直连数据的重复传输过程中，获取所述重复传输中的每一次重复传输的反馈资源，所述重复传输包含至少一次重复传输；
在所述每一次重复传输的各自反馈资源上接收所述第一终端发送的，对应一次重复传输的反馈信息，所述反馈信息用于指示是否正确接收到所述直连数据。
可选的，所述在与第一终端进行直连数据的重复传输过程中，获取所述重复传输中的每一次重复传输的反馈资源，所述处理器被配置为：
获取所述重复传输中的第j次重复传输所使用的传输资源的时频信息，j为大于或者等于1的整数；
根据所述第j次重复传输所使用的传输资源的时频信息以及反馈时间间隔，获取所述第j次重复传输的反馈资源。
可选的，所述反馈时间间隔是所述第二终端中预配置的时间间隔；
或者，
所述反馈时间间隔是配置设备发送给所述第二终端的配置指令中携带的时间间隔。
可选的，所述处理器还被配置为：
在接收到所述重复传输中的第k次重复传输的反馈信息时，若所述第k次重复传输的反馈信息指示正确接收到所述直连数据，则取消对所述直连数据的、 尚未完成的重复传输。
可选的，所述重复传输过程是所述第二终端在半双工工作状态下进行的重复传输过程。
可选的，所述重复传输过程，是所述第二终端与所述第一终端之间针对所述直连数据执行的至少两次重复传输过程中的部分重复传输过程。
可选的，所述重复传输过程是盲重复传输过程。
上述主要从第一终端和第二终端交互的角度，对本公开实施例提供的方案进行了介绍。可以理解的是，第一终端和第二终端为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。结合本公开中所公开的实施例描述的各示例的单元及算法步骤，本公开实施例能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。本领域技术人员可以对每个特定的应用来使用不同的方法来实现所描述的功能，但是这种实现不应认为超出本公开实施例的技术方案的范围。
图12是根据一示例性实施例示出的一种无线通信设备的结构示意图。
所述无线通信设备1200包括发射器1201，接收器1202和处理器1203。其中，处理器1203也可以为控制器，图12中表示为“控制器/处理器1203”。可选的，所述无线通信设备1200还可以包括调制解调处理器1205，其中，调制解调处理器1205可以包括编码器1206、调制器1207、解码器1208和解调器1209。
在一个示例中，发射器1201调节(例如，模拟转换、滤波、放大和上变频等)该输出采样并生成上行链路信号，该上行链路信号经由天线发射给上述实施例中所述的基站。在下行链路上，天线接收上述实施例中基站发射的下行链路信号。接收器1202调节(例如，滤波、放大、下变频以及数字化等)从天线接收的信号并提供输入采样。在调制解调处理器1205中，编码器1206接收要在上行链路上发送的业务数据和信令消息，并对业务数据和信令消息进行处理(例如，格式化、编码和交织)。调制器1207进一步处理(例如，符号映射和调制)编码后的业务数据和信令消息并提供输出采样。解调器1209处理(例如，解调)该输入采样并提供符号估计。解码器1208处理(例如，解交织和解码)该符号估计并提供发送给无线通信设备1200的已解码的数据和信令消息。编码器1206、调制器 1207、解调器1209和解码器1208可以由合成的调制解调处理器1205来实现。这些单元根据无线接入网采用的无线接入技术(例如，LTE及其他演进系统的接入技术)来进行处理。需要说明的是，当无线通信设备1200不包括调制解调处理器1205时，调制解调处理器1205的上述功能也可以由处理器1203完成。
处理器1203对无线通信设备1200的动作进行控制管理，用于执行上述本公开实施例中由无线通信设备1200进行的处理过程。例如，处理器1203还用于执行上述方法实施例中的无线通信设备侧的各个步骤，和/或本公开实施例所描述的技术方案的其它步骤。
进一步的，无线通信设备1200还可以包括存储器1204，存储器1204用于存储用于无线通信设备1200的程序代码和数据。
可以理解的是，图12仅仅示出了无线通信设备1200的简化设计。在实际应用中，无线通信设备1200可以包含任意数量的发射器，接收器，处理器，调制解调处理器，存储器等，而所有可以实现本公开实施例的无线通信设备都在本公开实施例的保护范围之内。
本公开实施例还提供了一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被第一终端的处理器执行时实现如上文介绍的第一终端的直连通信的重传反馈方法。
本公开实施例还提供了一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被第二终端的处理器执行时实现如上文介绍的第二终端的直连通信的重传反馈方法。
应当理解的是，在本文中提及的“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、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公开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 (36)

  1. 一种直连通信的重传反馈方法，其特征在于，所述方法由第一终端执行，所述方法包括：
    在与第二终端进行直连数据的重复传输过程中，生成所述重复传输中的每一次重复传输的反馈信息，所述反馈信息用于指示是否正确接收到所述直连数据，所述重复传输包含至少一次重复传输；
    获取所述重复传输中的每一次重复传输的反馈资源；
    在所述每一次重复传输各自的反馈资源上，向所述第二终端发送对应一次重复传输的反馈信息。
  2. 根据权利要求1所述的方法，其特征在于，所述在与第二终端进行直连数据的重复传输过程中，生成所述重复传输中的每一次重复传输的反馈信息，包括：
    在进行所述重复传输中的第i次重复传输后，生成所述第i次重复传输对应的反馈信息，i为大于或者等于1的整数。
  3. 根据权利要求2所述的方法，其特征在于，所述在进行所述重复传输中的第i次重复传输后，生成所述第i次重复传输对应的反馈信息，包括：
    在进行所述第i次重复传输后，根据在所述第i次重复传输的结束时刻的第一传输结果，生成所述第i次重复传输对应的反馈信息；
    其中，所述第一传输结果用于指示在所述第i次重复传输过程中是否正确接收到所述直连数据。
  4. 根据权利要求2所述的方法，其特征在于，所述在进行所述重复传输中的第i次重复传输后，生成所述第i次重复传输对应的反馈信息，包括：
    在进行所述第i次重复传输后，根据在所述第i次重复传输的结束时刻的第二传输结果，生成所述第i次重复传输对应的反馈信息；
    其中，所述第二传输结果用于指示在所述重复传输中前i次重复传输过程中是否正确接收到所述直连数据。
  5. 根据权利要求1至4任一所述的方法，其特征在于，所述获取所述重复传输中的每一次重复传输的反馈资源，包括：
    获取所述重复传输中的第j次重复传输所使用的传输资源的时频信息，j为大于或者等于1的整数；
    根据所述第j次重复传输所使用的传输资源的时频信息以及反馈时间间隔，获取所述第j次重复传输的反馈资源。
  6. 根据权利要求5所述的方法，其特征在于，
    所述反馈时间间隔是所述第一终端中预配置的时间间隔；
    或者，
    所述反馈时间间隔是配置设备发送给所述第一终端的配置指令中携带的时间间隔。
  7. 根据权利要求1至4任一所述的方法，其特征在于，所述重复传输过程是所述第一终端在半双工工作状态下进行的重复传输过程。
  8. 根据权利要求1至4任一所述的方法，其特征在于，
    所述重复传输过程，是所述第二终端与所述第一终端之间针对所述直连数据执行的至少两次重复传输过程中的部分重复传输过程。
  9. 根据权利要求1至4任一所述的方法，其特征在于，所述重复传输过程是盲重复传输过程。
  10. 一种直连通信的重传反馈方法，其特征在于，所述方法由第二终端执行，所述方法包括：
    在与第一终端进行直连数据的重复传输过程中，获取所述重复传输中的每一次重复传输的反馈资源，所述重复传输包含至少一次重复传输；
    在所述每一次重复传输的各自反馈资源上接收所述第一终端发送的，对应一次重复传输的反馈信息，所述反馈信息用于指示是否正确接收到所述直连数据。
  11. 根据权利要求10所述的方法，其特征在于，所述在与第一终端进行直连数据的重复传输过程中，获取所述重复传输中的每一次重复传输的反馈资源，包括：
    获取所述重复传输中的第j次重复传输所使用的传输资源的时频信息，j为大于或者等于1的整数；
    根据所述第j次重复传输所使用的传输资源的时频信息以及反馈时间间隔，获取所述第j次重复传输的反馈资源。
  12. 根据权利要求11所述的方法，其特征在于，
    所述反馈时间间隔是所述第二终端中预配置的时间间隔；
    或者，
    所述反馈时间间隔是配置设备发送给所述第二终端的配置指令中携带的时间间隔。
  13. 根据权利要求10至12任一所述的方法，其特征在于，所述方法还包括：
    在接收到所述重复传输中的第k次重复传输的反馈信息时，若所述第k次重复传输的反馈信息指示正确接收到所述直连数据，则取消对所述直连数据的、尚未完成的重复传输。
  14. 根据权利要求10至12任一所述的方法，其特征在于，所述重复传输过程，是所述第二终端与所述第一终端之间针对所述直连数据执行的至少两次重复传输过程中的部分重复传输过程。
  15. 根据权利要求10至12任一所述的方法，其特征在于，所述重复传输过程是所述第二终端在半双工工作状态下进行的重复传输过程。
  16. 根据权利要求10至12任一所述的方法，其特征在于，所述重复传输过程是盲重复传输过程。
  17. 一种直连通信的重传反馈装置，其特征在于，所述装置用于第一终端中，所述装置包括：
    生成模块，用于在与第二终端进行直连数据的重复传输过程中，生成所述重复传输中的每一次重复传输的反馈信息，所述反馈信息用于指示是否正确接收到所述直连数据，所述重复传输包含至少一次重复传输；
    第一获取模块，用于获取所述重复传输中的每一次重复传输的反馈资源；
    第一发送模块，用于在所述每一次重复传输各自的反馈资源上，向所述第二终端发送对应一次重复传输的反馈信息。
  18. 根据权利要求17所述的装置，其特征在于，所述生成模块，用于，
    在进行所述重复传输中的第i次重复传输后，生成所述第i次重复传输对应的反馈信息，i为大于或者等于1的整数。
  19. 根据权利要求18所述的装置，其特征在于，所述生成模块，用于，
    在进行所述第i次重复传输后，根据在所述第i次重复传输的结束时刻的第一传输结果，生成所述第i次重复传输对应的反馈信息；
    其中，所述第一传输结果用于指示在所述第i次重复传输过程中是否正确接收到所述直连数据。
  20. 根据权利要求18所述的装置，其特征在于，所述生成模块，用于，
    在进行所述第i次重复传输后，根据在所述第i次重复传输的结束时刻的第二传输结果，生成所述第i次重复传输对应的反馈信息；
    其中，所述第二传输结果用于指示在所述重复传输中前i次重复传输过程中是否正确接收到所述直连数据。
  21. 根据权利要求17至20任一所述的装置，其特征在于，所述第一获取模块，包括第一获取子模块和第二获取子模块；
    所述第一获取子模块，用于获取所述重复传输中的第j次重复传输所使用的传输资源的时频信息，j为大于或者等于1的整数；
    所述第二获取子模块，用于根据所述第j次重复传输所使用的传输资源的时频信息以及反馈时间间隔，获取所述第j次重复传输的反馈资源。
  22. 根据权利要求21所述的装置，其特征在于，
    所述反馈时间间隔是所述第一终端中预配置的时间间隔；
    或者，
    所述反馈时间间隔是配置设备发送给所述第一终端的配置指令中携带的时间间隔。
  23. 根据权利要求17至20任一所述的装置，其特征在于，所述重复传输过程是所述第一终端在半双工工作状态下进行的重复传输过程。
  24. 根据权利要求17至20任一所述的装置，其特征在于，
    所述重复传输过程，是所述第二终端与所述第一终端之间针对所述直连数据执行的至少两次重复传输过程中的部分重复传输过程。
  25. 根据权利要求17至20任一所述的装置，其特征在于，所述重复传输过程是盲重复传输过程。
  26. 一种直连通信的重传反馈装置，其特征在于，所述装置用于第二终端中，所述装置包括：
    第二获取模块，用于在与第一终端进行直连数据的重复传输过程中，获取所述重复传输中的每一次重复传输的反馈资源，所述重复传输包含至少一次重复传输；
    第二发送模块，用于在所述每一次重复传输的各自反馈资源上接收所述第一终端发送的，对应一次重复传输的反馈信息，所述反馈信息用于指示是否正确接收到所述直连数据。
  27. 根据权利要求26所述的装置，其特征在于，所述第二获取模块，包括第三获取子模块和第四获取子模块；
    所述第三获取子模块，用于获取所述重复传输中的第j次重复传输所使用的传输资源的时频信息，j为大于或者等于1的整数；
    所述第四获取子模块，用于根据所述第j次重复传输所使用的传输资源的时频信息以及反馈时间间隔，获取所述第j次重复传输的反馈资源。
  28. 根据权利要求27所述的装置，其特征在于，
    所述反馈时间间隔是所述第二终端中预配置的时间间隔；
    或者，
    所述反馈时间间隔是配置设备发送给所述第二终端的配置指令中携带的时间间隔。
  29. 根据权利要求26至28任一所述的装置，其特征在于，所述装置还包括：
    取消模块，用于在接收到所述重复传输中的第k次重复传输的反馈信息时，若所述第k次重复传输的反馈信息指示正确接收到所述直连数据，则取消对所述直连数据的、尚未完成的重复传输。
  30. 根据权利要求26至28任一所述的装置，其特征在于，所述重复传输过程是所述第二终端在半双工工作状态下进行的重复传输过程。
  31. 根据权利要求26至28任一所述的装置，其特征在于，所述重复传输过程，是所述第二终端与所述第一终端之间针对所述直连数据执行的至少两次重复传输过程中的部分重复传输过程。
  32. 根据权利要求26至28任一所述的装置，其特征在于，所述重复传输过程是盲重复传输过程。
  33. 一种直连通信的重传反馈装置，其特征在于，所述装置用于第一终端中，所述装置包括：
    处理器；
    用于存储所述处理器的可执行指令的存储器；
    其中，所述处理器被配置为：
    在与第二终端进行直连数据的重复传输过程中，生成所述重复传输中的每一次重复传输的反馈信息，所述反馈信息用于指示是否正确接收到所述直连数据，所述重复传输包含至少一次重复传输；
    获取所述重复传输中的每一次重复传输的反馈资源；
    在所述每一次重复传输各自的反馈资源上，向所述第二终端发送对应一次重复传输的反馈信息。
  34. 一种直连通信的重传反馈装置，其特征在于，所述装置用于第二终端中，所述装置包括：
    处理器；
    用于存储所述处理器的可执行指令的存储器；
    其中，所述处理器被配置为：
    在与第一终端进行直连数据的重复传输过程中，获取所述重复传输中的每一次重复传输的反馈资源，所述重复传输包含至少一次重复传输；
    在所述每一次重复传输的各自反馈资源上接收所述第一终端发送的，对应一次重复传输的反馈信息，所述反馈信息用于指示是否正确接收到所述直连数据。
  35. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中包含可执行指令，所述第一终端中的处理器调用所述可执行指令以实现上述权利要求1至9任一所述的直连通信的重传反馈方法。
  36. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中包含可执行指令，所述第二终端中的处理器调用所述可执行指令以实现上述权利要求10至16任一所述的直连通信的重传反馈方法。
PCT/CN2019/081956 2019-04-09 2019-04-09 直连通信的重传反馈方法、装置及存储介质 WO2020206616A1 (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US17/601,811 US20220182206A1 (en) 2019-04-09 2019-04-09 Retransmission feedback method and device for sidelink communication, and storage medium
EP19924137.3A EP3955601A4 (en) 2019-04-09 2019-04-09 METHOD AND DEVICE FOR FORWARDING FEEDBACK FOR DIRECT CONNECTION COMMUNICATION, AND STORAGE MEDIUM
CN201980000625.9A CN110169093B (zh) 2019-04-09 2019-04-09 直连通信的重传反馈方法、装置及存储介质
PCT/CN2019/081956 WO2020206616A1 (zh) 2019-04-09 2019-04-09 直连通信的重传反馈方法、装置及存储介质

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/081956 WO2020206616A1 (zh) 2019-04-09 2019-04-09 直连通信的重传反馈方法、装置及存储介质

Publications (1)

Publication Number Publication Date
WO2020206616A1 true WO2020206616A1 (zh) 2020-10-15

Family

ID=67637860

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/081956 WO2020206616A1 (zh) 2019-04-09 2019-04-09 直连通信的重传反馈方法、装置及存储介质

Country Status (4)

Country Link
US (1) US20220182206A1 (zh)
EP (1) EP3955601A4 (zh)
CN (1) CN110169093B (zh)
WO (1) WO2020206616A1 (zh)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019210559A1 (de) * 2019-04-15 2020-10-15 Technische Universität Dresden Verfahren zur Kontrolle einer Fahrzeugkolonne mittels Fahrzeug-zu-Fahrzeug-Kommunikation
KR20220002342A (ko) * 2019-04-23 2022-01-06 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 사이드링크 데이터를 전송하는 방법 및 단말기 디바이스
CN112152760B (zh) * 2019-06-27 2022-03-29 华为技术有限公司 一种psfch的发送方法及装置
US11671917B2 (en) * 2019-08-19 2023-06-06 Qualcomm Incorporated Power saving techniques for sidelink communication
WO2021051218A1 (zh) * 2019-09-16 2021-03-25 张波 一种侧链路重传方法
CN112583536B (zh) * 2019-09-30 2022-10-11 华为技术有限公司 反馈信息处理方法及通信装置
CN115085873A (zh) * 2019-09-30 2022-09-20 维沃移动通信有限公司 Harq反馈方式的指示、确定方法及装置
CN114402693B (zh) * 2019-10-18 2023-09-26 Oppo广东移动通信有限公司 无线通信的方法和终端设备
CN114731230A (zh) * 2019-11-28 2022-07-08 华为技术有限公司 一种数据传输的方法及装置
CN115189823A (zh) * 2021-04-01 2022-10-14 维沃移动通信有限公司 重复传输的处理方法、装置、终端及网络侧设备
WO2024000584A1 (en) * 2022-07-01 2024-01-04 Nec Corporation Method, device and computer readable medium for sidelink communication

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014110467A1 (en) * 2013-01-11 2014-07-17 Interdigital Patent Holdings, Inc. System and method for adaptive modulation
WO2018195826A1 (zh) * 2017-04-26 2018-11-01 华为技术有限公司 一种信息反馈的方法和装置
CN109075908A (zh) * 2018-08-10 2018-12-21 北京小米移动软件有限公司 车联网设备之间的反馈信息传输方法、装置及系统

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0608753D0 (en) * 2006-05-03 2006-06-14 Nokia Corp User equipment
US8068457B2 (en) * 2007-03-13 2011-11-29 Samsung Electronics Co., Ltd. Methods for transmitting multiple acknowledgments in single carrier FDMA systems
WO2008153367A1 (en) * 2007-06-15 2008-12-18 Samsung Electronics Co., Ltd. Method and apparatus for allocating and acquiring ack/nack resources in a mobile communication system
US8548483B2 (en) * 2010-10-04 2013-10-01 Nokia Corporation Feedback mapping for D2D control signals
US9185690B2 (en) * 2012-02-29 2015-11-10 Sharp Kabushiki Kaisha Allocating and determining resources for a device-to-device link
EP2866360B1 (en) * 2012-06-24 2020-03-25 Lg Electronics Inc. Method and device for performing direct communication between terminals in wireless communication system
KR20140128728A (ko) * 2013-04-29 2014-11-06 삼성전자주식회사 디바이스 대 디바이스 통신 시스템에서 재전송을 수행하는 방법 및 장치
CN105991247A (zh) * 2015-02-16 2016-10-05 中兴通讯股份有限公司 一种设备到设备发送、接收、调度方法和相应装置
CN107359971A (zh) * 2016-05-10 2017-11-17 北京信威通信技术股份有限公司 V2x的消息盲重传次数确定方法、系统及决策节点
CN107370576B (zh) * 2016-05-12 2019-11-19 中国移动通信有限公司研究院 一种确定混合自动重传请求反馈时序的方法及装置
US10298362B2 (en) * 2016-11-24 2019-05-21 Samsung Electronics Co., Ltd Method and apparatus for partial retransmission in wireless cellular communication system
CN108616339B (zh) * 2016-12-12 2021-02-12 普天信息技术有限公司 一种v2x通信系统中sc-ptm反馈资源的确定方法
CN108923894B (zh) * 2017-03-23 2023-04-18 中兴通讯股份有限公司 一种信息传输的方法、用户设备、基站、存储介质和系统

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014110467A1 (en) * 2013-01-11 2014-07-17 Interdigital Patent Holdings, Inc. System and method for adaptive modulation
WO2018195826A1 (zh) * 2017-04-26 2018-11-01 华为技术有限公司 一种信息反馈的方法和装置
CN109075908A (zh) * 2018-08-10 2018-12-21 北京小米移动软件有限公司 车联网设备之间的反馈信息传输方法、装置及系统

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3955601A4 *

Also Published As

Publication number Publication date
CN110169093A (zh) 2019-08-23
US20220182206A1 (en) 2022-06-09
EP3955601A1 (en) 2022-02-16
EP3955601A4 (en) 2022-04-20
CN110169093B (zh) 2022-11-22

Similar Documents

Publication Publication Date Title
WO2020206616A1 (zh) 直连通信的重传反馈方法、装置及存储介质
US20180198565A1 (en) Providing Acknowledgement Information by a Wireless Device
JP7426479B2 (ja) Ｈａｒｑプロセスごとにフィードバックを有効化／無効化するｈａｒｑコードブック構築
WO2018059282A1 (en) System and method for d2d communication
WO2018171378A1 (zh) 一种数据传输方法、通信设备和数据传输系统
JP2010045790A (ja) Ｔｔｉバンドルの再送を処理する方法及び通信装置
EP3751914B1 (en) Communication method, communication apparatus and readable storage medium
EP3780447B1 (en) Harq technology-based communication method, device, and system
EP3526920A1 (en) Base stations, user equipments and a system for wireless communication, as well as the corresponding methods
WO2020143731A1 (zh) 用于传输数据的方法、通信设备和网络设备
CN109327905A (zh) 数据传输的方法、终端及计算机可读介质
US20230231665A1 (en) Method for feeding back hybrid automatic repeat request acknowledgement (harq-ack) and terminal device
WO2020210940A1 (zh) 无线局域网的通信方法、装置、终端及可读存储介质
Antonopoulos et al. Network coding-based cooperative ARQ scheme for VANETs
CN114788204B (zh) Harq进程的状态确定方法、装置及设备
US20170288742A1 (en) Wireless data transmission method, network side device, user equipment, and system
EP3902170B1 (en) Communication method, apparatus and system
CN108781135B (zh) 物联网的传输优化方法、装置和设备
US20210409161A1 (en) Multiple access point operation of a wireless network
WO2022021007A1 (zh) 无线通信方法、终端设备和网络设备
US11463907B2 (en) Base station equipment, communication terminal, communication system, program, frame transmitting method, and data structure
US20220368505A1 (en) Data feedback method and apparatus
WO2022099555A1 (zh) 无线通信的方法、终端设备和网络设备
US9768936B2 (en) Message transmission in an unlicensed spectrum
WO2022001797A1 (zh) 数据传输方法及装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19924137

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2019924137

Country of ref document: EP

Effective date: 20211109