WO2020164433A1 - 电子装置、无线通信方法和计算机可读介质 - Google Patents

电子装置、无线通信方法和计算机可读介质 Download PDF

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Publication number
WO2020164433A1
WO2020164433A1 PCT/CN2020/074416 CN2020074416W WO2020164433A1 WO 2020164433 A1 WO2020164433 A1 WO 2020164433A1 CN 2020074416 W CN2020074416 W CN 2020074416W WO 2020164433 A1 WO2020164433 A1 WO 2020164433A1
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Prior art keywords
information
data
retransmission
feedback
electronic device
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PCT/CN2020/074416
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English (en)
French (fr)
Inventor
侯延昭
朱敏
高磊
郭欣
孙晨
王冰
陶小峰
Original Assignee
索尼公司
侯延昭
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.)
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Application filed by 索尼公司, 侯延昭 filed Critical 索尼公司
Priority to EP20755774.5A priority Critical patent/EP3926871A4/en
Priority to CN202080013772.2A priority patent/CN113439403B/zh
Priority to US17/424,167 priority patent/US12040900B2/en
Publication of WO2020164433A1 publication Critical patent/WO2020164433A1/zh
Priority to US18/672,082 priority patent/US20240313892A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
    • H04L1/1678—Details of the supervisory signal the supervisory signal being transmitted together with control information where the control information is for timing, e.g. time stamps
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1887—Scheduling and prioritising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • 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
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1896—ARQ related signaling
    • 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
    • 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
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • 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 present disclosure generally relates to the field of wireless communication, and more specifically, to electronic devices, wireless communication methods, and computer-readable media for wireless communication.
  • TS 36.213 of 3GPP defines that user equipment (UE) is used to transmit PSCCH (Physical Direct Link Control Channel) and corresponding PSSCH in LTE (Long Term Evolution) V2X (vehicle and other equipment) communication.
  • the determination method of the time-frequency resource of the (Physical Direct Link Shared Channel) and the UE process of receiving PSCCH also define the information field and configuration method of SCI (direct link control information).
  • TS 36.321 defines the retransmission-based direct link HARQ (hybrid automatic repeat request) process at the MAC (Media Access Control) layer in LTE V2X.
  • MAC Media Access Control
  • an electronic device for wireless communication which includes a processing circuit.
  • the processing circuit is configured to control to send data and information related to the retransmission of the data to the target user equipment through the through link.
  • the processing circuit is also configured to control operations for retransmission of data.
  • a wireless communication method includes a step of sending data and information related to retransmission of the data to a target user equipment through a through link. The method also includes the step of performing operations for retransmission of data.
  • an electronic device for wireless communication which includes a processing circuit.
  • the processing circuit is configured to control to receive data and information related to the retransmission of the data from the source user equipment through the through link.
  • the processing circuit is also configured to control operations for retransmission of data.
  • a wireless communication method includes a step of receiving data and information related to retransmission of data from a source user equipment through a through link. The method also includes the step of performing operations for retransmission of data.
  • an electronic device for wireless communication which includes a processing circuit.
  • the processing circuit is configured to set through link control information, where the through link control information is used to indicate information related to data retransmission from the source user equipment to the target user equipment through the through link.
  • the processing circuit is also configured to perform control to notify the source user equipment of the set through link control information.
  • the information related to the data retransmission includes the time interval between the initial transmission and retransmission of the data by the source user equipment or the time domain location information of the data feedback by the target user equipment.
  • a wireless communication method includes a step of setting through link control information.
  • the direct link control information is used to indicate information related to data retransmission from the source user equipment to the target user equipment through the direct link.
  • the method also includes the step of notifying the source user equipment of the set through link control information.
  • the information related to the data retransmission includes the time interval between the initial transmission and retransmission of the data by the source user equipment or the time domain location information of the data feedback by the target user equipment.
  • a computer-readable medium including executable instructions, which when executed by an information processing device, cause the information processing device to perform the above method.
  • FIG. 1 is a block diagram showing a configuration example of an electronic device for wireless communication according to an embodiment of the present invention
  • FIG. 2 is a flowchart showing a process example of a wireless communication method according to an embodiment of the present invention
  • FIG. 3 is a block diagram showing a configuration example of an electronic device for wireless communication according to another embodiment of the present invention.
  • FIG. 4 is a flowchart showing a process example of a wireless communication method according to another embodiment of the present invention.
  • FIG. 5 is a block diagram showing a configuration example of an electronic device for wireless communication according to still another embodiment of the present invention.
  • FIG. 6 is a flowchart showing a process example of a wireless communication method according to another embodiment of the present invention.
  • FIG. 7 is a block diagram showing an exemplary structure of a computer implementing the method and device of the present disclosure
  • FIG. 8 is a block diagram showing an example of a schematic configuration of a smart phone to which the technology of the present disclosure can be applied;
  • FIG. 9 is a block diagram showing an example of a schematic configuration of a gNB to which the technology of the present disclosure can be applied;
  • FIG. 10 is a block diagram of an example of a schematic configuration of a car navigation device to which the technology of the present disclosure can be applied;
  • FIG. 11 is a flowchart showing an example of a configuration manner of direct link control information
  • FIG. 12 is a flowchart showing another example of the configuration of the through link control information
  • FIG. 13 is a flowchart showing an example of a through link data transmission based on retransmission
  • FIG. 14 is a flowchart showing an example of feed-through-link data transmission based on feedback
  • 15 is a schematic diagram showing through link data transmission based on code block groups
  • FIG. 16 is a schematic diagram for explaining an example of video resources of through link feedback information
  • FIG. 17 is a schematic diagram for explaining another example of the video resource of the direct link feedback information.
  • FIG. 18 is a schematic diagram for explaining another example of video resources of through link feedback information
  • 19 is a flowchart for explaining an example of feedback processing on the receiving user side
  • 20 is a flowchart for explaining an example of feedback processing in the case of multiple transmission users
  • 21 is a flowchart for explaining another example of feedback processing in the case of multiple transmission users
  • 22 is a flowchart for explaining another example of feedback processing in the case of multiple sending users
  • FIG. 23 is a flowchart for explaining an example of a process related to retransmission resource configuration.
  • Fig. 24 is a flowchart for explaining an example of a process related to retransmission resource selection.
  • the electronic device 100 for wireless communication includes a processing circuit 110.
  • the processing circuit 110 may be implemented as a specific chip, a chipset, or a central processing unit (CPU), for example.
  • the electronic device may be implemented on the user equipment side. More specifically, the user equipment may include a vehicle, for example.
  • the present invention is not limited to this, but can be used in various application scenarios of new wireless (NR) direct links (Sidelink), such as machine type communication (MTC), device-to-device (D2D) communication, vehicles and other devices ( V2X) communications, Internet of Things (IOT) communications, drone communications, etc.
  • NR new wireless
  • V2X communication may include vehicle-to-vehicle (V2V) communication, vehicle-to-pedestrian (V2P) communication, and vehicle-to-infrastructure (V2I) communication.
  • the processing circuit 110 includes a transmission control unit 111 and an operation control unit 113. It should be pointed out that although the figure shows the transmission control unit 111 and the operation control unit 113 in the form of functional blocks, it should be understood that the functions of each unit can also be realized by the processing circuit as a whole, and not necessarily through Realize the discrete actual components in the processing circuit. In addition, although the processing circuit is shown in one block in the figure, the electronic device may include multiple processing circuits, and the functions of each unit may be distributed to the multiple processing circuits, so that the multiple processing circuits cooperate to perform these functions.
  • the transmission control unit 111 is configured to perform control to transmit data and information related to the retransmission of the data to the target user equipment through the through link.
  • the electronic device can be implemented on the side of the source user equipment (that is, the user equipment as the transmission source of the transmitted data, which may also be referred to as the sending user in this document), which sends the data to the target user
  • the device that is, the user equipment that is the sending target of the transmitted data, and may also be referred to as the receiving user in this document) side.
  • the source user equipment may, for example, send information related to data retransmission as direct link control information (SCI) to the target user equipment.
  • SCI direct link control information
  • the operation control unit 113 is configured to control an operation for retransmission of data.
  • the operation for retransmission of data may include a direct link hybrid automatic repeat request (SL HARQ) operation based on retransmission or an SL HARQ operation based on feedback.
  • SL HARQ based on retransmission refers to a way for the sending user to ensure the reliability of communication through multiple retransmissions.
  • Feedback-based SL HARQ is a way in which the receiving user feeds back acknowledgement (ACK) or non-acknowledgement (NACK) information to the sending user through the direct link feedback channel (PSFCH), for example, to determine whether the sending user needs retransmission to ensure communication reliability.
  • ACK back acknowledgement
  • NACK non-acknowledgement
  • the information related to the retransmission of data may include the time interval between initial transmission and retransmission of data. Accordingly, the operation for retransmission of data may include retransmission of data according to a time interval.
  • FIG. 13 shows an example manner of SL HARQ based on retransmission.
  • the sending device sends the SCI and data to the receiving user, and retransmits the data after the initial transmission and retransmission interval.
  • SCI can also include one or more of the following information: service priority, resource reservation, source ID information, destination ID information, initial transmission and retransmission frequency Domain location, modulation and coding method, retransmission index, etc.
  • Mode 1 base station assisted mode users can configure its content according to the base station instructions
  • Mode 2 no base station assisted mode users can configure its content according to higher-level instructions.
  • Mode 1 users can configure their content according to the base station instructions, and Mode 2 users can configure their content according to higher-level instructions.
  • the user can send services without retransmission.
  • the information related to the retransmission of the data may include time domain location information for the target user to set a feedback on the data.
  • the operation for retransmission of data may include receiving feedback information of the target user equipment on the data based on the time domain location information, and retransmitting the data based on the feedback information.
  • Fig. 14 shows an example manner of SL HARQ based on feedback. As shown in Figure 14, assuming that the receiving user receives and successfully decodes the relevant transport block (TB), the receiving user feeds back ACK information to the sending user. If the receiving user fails to decode the relevant transport block after receiving it, the receiving user feeds back the NACK information to the sending user, and the sending user retransmits after receiving the NACK feedback.
  • TB transport block
  • feedback and retransmission are performed in units of transmission blocks in this example, the present invention is not limited to this.
  • feedback and reception can also be performed in units of code block groups (CBG).
  • CBG code block groups
  • Fig. 15 is a schematic diagram of direct link data transmission based on code block groups. As shown in FIG. 15, a TB contains multiple code blocks (CB), and several code blocks can form a code block group.
  • CB code blocks
  • the information related to the retransmission of data may also include information indicating the unit of retransmission (transmission block or code block group), and the operation for retransmission of data may include taking the transmission block or code block group as a unit Receive data feedback and retransmit data.
  • the receiving user can generate 1-bit ACK information for the CBG ; If the receiving user does not successfully receive and decode the codeword in the CBG, the receiving user can generate 1-bit NACK information for the CBG.
  • the codebook may include N bits of ACK/NACK information.
  • the receiving user feeds back the codebook information to the sending user.
  • the SCI may include, for example, service priority, resource reservation, source ID information, destination ID information, initial transmission and feedback transmission frequency domain position, initial transmission and feedback transmission time domain position, modulation and coding mode, retransmission index , HARQ ID, CBG transmission information, etc.
  • the CBG transmission information can be used to indicate the unit (TB or CBG) for the receiving user to perform SL HARQ feedback.
  • CBG unit
  • the receiving user will feed back ACK/NACK information to the sending user through the direct link feedback channel (PSFCH).
  • PSFCH direct link feedback channel
  • the SCI sent from the sending user to the receiving user may include the feedback transmission frequency domain position and the feedback transmission time domain position.
  • the time domain location information may include one or more time domain locations for receiving feedback information.
  • the time-domain location information may include one or more time windows for receiving feedback information.
  • the sending user indicates the time-frequency resource for the direct link feedback information to be used for receiving the user's feedback ACK/NACK information.
  • the sending user indicates n (n greater than or equal to 1) time domain and frequency domain positions for the through link feedback information.
  • the sending user feedbacks information for the through link indicating the connection frequency domain location and the feedback time window.
  • the sending user indicates a time-frequency position and feedback time window for the through link feedback information.
  • the sending user can configure PSFCH resources for the receiving user in a similar manner.
  • the difference is that the time-frequency resource indicated by the sending user for the direct link feedback information can be used to feed back codebook information.
  • the SL HARQ feedback resource can be determined.
  • the sending user waits to receive SL HARQ feedback information at the PSFCH resource location configured for the receiving user.
  • the time-domain location information used for data retransmission may include multiple time-domain locations for receiving feedback information, and the operation for data retransmission may include successively receiving feedback information at multiple time-domain locations. , Until the feedback information is received; if no feedback information is received at multiple time domain locations, retransmission is performed.
  • Figure 19 shows an example process, where N is the number of SL HARQ feedback information configuration resources, and the SL HARQ feedback resources are called the first SL HARQ resource, the second SL HARQ resource, etc. in chronological order.
  • the receiving user determines through detection that the first SL HARQ feedback resource configured by the sending user is not occupied, and the domain location can be in the sending state at this time, the receiving user sends SL HARQ feedback information on the first SL HARQ feedback resource. Otherwise, continue to detect the next feedback resource.
  • the receiving user will not feedback this transmission.
  • the sending user receives the SL HARQ feedback information at the first SL HARQ resource location, the sending user receives the ACK information and the transmission is completed, and the sending user receives the NACK information and retransmits.
  • the sending user does not receive the SL HARQ feedback information at the first SL HARQ resource location, the sending user continues to wait to receive the SL HARQ feedback at the next SL HARQ resource location. If SL HARQ is received, the feedback is received successfully, otherwise, continue to perform this step until the feedback information is received at the location of the SL HARQ feedback resource.
  • the sending user does not receive SL HARQ feedback at the PSFCH resource location configured for the receiving user, the retransmission step is performed.
  • the time-domain location information used for data retransmission may include multiple time windows for receiving feedback information
  • the operation for data retransmission may include successively receiving feedback information in multiple time windows, Until the feedback information is received; if the feedback information is not received within multiple time windows, retransmission is performed.
  • the receiving user detects the time-frequency resources that can perform SL HARQ feedback within the feedback time window configured by the sending user, and selects the time domain resources for SL HARQ feedback according to the delay requirements of the service, and performs SL HARQ feedback. Otherwise, the receiving user will not give feedback on this transmission.
  • the sending user waits to receive the SL HARQ feedback within the time window of the PSFCH configured for the receiving user, and if the sending user receives the SL HARQ feedback information, the receiving feedback is successful. If the sending user does not receive the SL HARQ feedback in the resource part of the PSFCH time window, the retransmission step is performed.
  • the time-domain location information used for data retransmission includes a time-domain location and a time window for receiving feedback information
  • the operation for data retransmission may include successively at the time-domain location and within the time window The feedback information is received until the feedback information is received; if the feedback information is not received in the time domain position and within the time window, retransmission is performed.
  • the receiving user detects that the first SL HARQ feedback resource configured by the sending user is not occupied, and the domain location can be in the sending state at this time, the receiving user sends SL HARQ feedback information on the first SL HARQ feedback resource .
  • the receiving user detects that the first SL HARQ feedback resource configured by the sending user is occupied, or the domain location cannot be in the sending state at this time, and the sending user indicates an SL HARQ feedback time window, the receiving user continues to detect the SL HARQ feedback time For the resources in the window, select the time-domain resources for SL HARQ feedback according to the delay requirements of the service, and perform SL HARQ feedback.
  • the sending user receives the SL HARQ feedback information at the first SL HARQ resource location, the sending user receives the ACK information and the transmission is completed, and the sending user receives the NACK information and retransmits.
  • the sending user does not receive the SL HARQ feedback information at the first SL HARQ resource location, the sending user continues to wait to receive the SL HARQ feedback within the SL HARQ resource time window. If SL HARQ is received, the receiving feedback is successful, otherwise the sending user performs the retransmission step.
  • sending user 1 and sending user 2 select sending resources through resource awareness, and communicate with receiving user 3 through link 1 and link 2, respectively, sending user 1 and sending user 2 are the PSFCHs determined by receiving user 3
  • the resources may overlap in whole or in part.
  • the receiving user detects that the PSFCH resources of link 1 and link 2 collide, the receiving user will process the SL HARQ feedback information of link 1 and link 2 and send it to sending user 1 and sending user respectively 2.
  • the sending user can detect the signal on the PSFCH resource, and decode and receive the feedback signal using the information on the sending user side.
  • the sending user can only decode the feedback information of the link where it is located, so that the problem of feedback resource collision can be solved.
  • the operation for data retransmission on the sending user side may include decoding the received feedback information, and determining whether the decoded feedback information is feedback information for the data sent by the sending user .
  • the processing of SL HARQ feedback information may include sending the user ID or HARQ ID using respective links.
  • a method of scrambling through a codebook or the like can be adopted.
  • the operation for data retransmission on the transmitting user side may include data feedback and retransmission in units of code block groups, and the feedback information may include codebook information.
  • the maximum number of feedback links M supported on the same resource can be set.
  • the data can be configured through system information or RRC (Radio Resource Control) signaling, selected based on location, or pre-configured, for example.
  • RRC Radio Resource Control
  • each link adopts the scheme in the foregoing embodiment for feedback. If M ⁇ m, for example, by comparing the priority of each link, feedback on the PSFCH resource for M links with high priority can be performed, and the remaining links can be fed back on other feedback resources of this link. , Or if there are no other feedback resources, no feedback is required.
  • the sending user can perform the relevant transport block (TB) for this HARQ for retransmission.
  • the sending user can retransmit the CBG fed back as NACK in the codebook.
  • the sending user can retransmit the data through the same resource or a different resource as that of the initial data transmission.
  • the sending user can determine the resource for data retransmission according to the feedback information of the receiving user.
  • the receiving user may transmit the retransmission feedback information while transmitting the SL HARQ feedback information including the NACK information, so as to assist the sending user to select the resources for the SL HARQ retransmission.
  • the retransmission feedback information may include, for example, a retransmission resource candidate set, a measurement result (part or all) of resource sensing performed by the receiving user, channel busy ratio (CBR) measurement information, channel state information (CSI), and the like.
  • CBR channel busy ratio
  • CSI channel state information
  • the feedback information from the receiving user may include information related to the retransmission resource of the data
  • the operation for the retransmission of the data may include determining the retransmission resource for the data according to the information related to the retransmission resource. Retransmission resources.
  • the base station can configure retransmission resources for the sending user according to the resource pool situation and the resource report.
  • the sending user can select the retransmission resource based on the resource measurement report and the retransmission feedback information of the receiving user.
  • information such as the retransmission index and HARQ ID can be set in the SCI to distinguish between initial transmission and retransmission.
  • Figure 23 shows an example process in which a sending user of Mode 1 obtains retransmission resources according to the base station configuration and resource report information.
  • the sending user receives and decodes the SL HARQ feedback information and retransmission feedback information of the receiving user.
  • the Mode 1 user sends a resource request and resource report to the base station after receiving the NACK.
  • the base station allocates retransmission resources according to the retransmission request of the Mode 1 user and notifies the sending user.
  • Mode 1 users retransmit on the retransmission resources.
  • Fig. 24 shows an example process of a Mode 2 sending user selecting retransmission resources.
  • the sending user receives and decodes the SL HARQ feedback information and retransmission feedback information of the receiving user.
  • the Mode 2 user selects appropriate retransmission resources based on the retransmission feedback request and the resource measurement results, and retransmits on the retransmission resources.
  • the wireless communication method includes a step S210 of sending data and information related to retransmission of data to a target user equipment through a through link, and a step of performing an operation for retransmission of data S220.
  • This method can be implemented on the sending user side.
  • the present invention also includes a device and method implemented on the receiving user side.
  • a device and method implemented on the receiving user side is described above for the sending user side.
  • the electronic device 300 for wireless communication includes a processing circuit 310.
  • the processing circuit 310 includes a receiving control unit 311 and an operation control unit 313.
  • the electronic device can be implemented on the user equipment side such as a vehicle, and can be applied to the aforementioned various application scenarios of the through link.
  • the receiving control unit 311 is configured to control to receive data and information related to the retransmission of the data from the source user equipment through the through link.
  • the operation control unit 313 is configured to control an operation for retransmission of data.
  • the information related to the retransmission of data may include the time interval of initial transmission and retransmission of data, and the operation for retransmission of data may include receiving retransmission of data according to the time interval.
  • the information related to the retransmission of the data may include the time-domain location information of the data feedback, and the operation for the data retransmission may include the feedback information of sending the data to the source user equipment based on the time-domain location information .
  • the information related to the retransmission of data may also include information indicating the unit of retransmission, and the operation for retransmission of data may include feedback of data in units of transmission blocks or code block groups.
  • the time domain location information may include one or more time domain locations for sending feedback information and/or one or more time windows for sending feedback information, and may be in one of the one or more time domain locations Or send feedback within one or more time windows.
  • the information related to the retransmission of the data may include the service priority of the data, and the operation for the retransmission of the data may include sending feedback information and receiving other data based on the service priority, or may include multiple Send feedback information for each link.
  • the link to which feedback information is to be sent may be selected according to priority.
  • the receiving user detects that the SL HARQ feedback resource of the first link 1 is restricted by the half-duplex because the second link is receiving information
  • the feedback of each link can also be performed according to the priority.
  • the receiving user when the receiving user detects that the SL HARQ feedback is restricted by half-duplex, the receiving user selects the preferentially processed link according to the link 1 and link 2 service priority or QoS (Quality of Service) level.
  • QoS Quality of Service
  • the receiving user preferentially executes the SL HARQ feedback of link 1 and interrupts the receiving of link 2 information.
  • the link 2 supports CBG SL HARQ
  • the link 2 information can still be received after the SL HARQ feedback ends, the receiving user continues to receive it.
  • the NACK information is fed back to the unreceived CBG, and retransmission is requested.
  • link 2 supports non-CBG SL HARQ
  • the link 2 information can still be received after the SL HARQ feedback ends, the receiving user can continue to receive it.
  • the NACK information is fed back to the sending user 2.
  • the receiving user preferentially receives the information of the link 2 without performing the SL HARQ feedback of the link 1.
  • the receiving user executes the SL HARQ feedback of link 1 according to the SCI instruction, as shown in Figure 21.
  • the feedback information may be scrambled by including the identification information of the corresponding source user equipment in the feedback information or using a codebook.
  • the feedback information may also include information related to the retransmission resources of the data, and the retransmission of the data may be received based on the retransmission resources.
  • Fig. 4 shows a process example of the corresponding wireless communication method.
  • the method includes a step S410 of receiving data and information related to the retransmission of the data from a source user equipment through a through link, and a step S420 of performing an operation for retransmission of the data.
  • the present invention also includes a device and method implemented on the base station side.
  • a device and method implemented on the base station side Next, without repeating the details corresponding to the details described above for the user side, an explanation of the embodiments of the apparatus and method implemented in the base station is given.
  • the electronic device 500 for wireless communication includes a processing circuit 510.
  • the processing circuit 510 includes a setting unit 511 and a notification unit 513.
  • the setting unit 511 is configured to set the through link control information.
  • the direct link control information is used to indicate information related to the data retransmission from the source user equipment to the target user equipment through the direct link, which may include the time interval between the source user equipment's initial transmission and retransmission of data or the target user The time domain location information of the device's data feedback.
  • the set SCI format may include the SCI format used for retransmission-based SL HARQ and the SCI format used for feedback-based SL HARQ.
  • user assistance information may also be set, which may include, for example, information such as the maximum transmission block size of service transmission data, service priority information, service SL HARQ mechanism preferences, and so on.
  • the notification unit 513 is configured to perform control to notify the source user equipment of the set through link control information.
  • the base station can configure the SCI format and the content of the transmission resource-related fields in the SCI according to the user assistance information and channel measurement information reported by the user, as shown in FIG. 11.
  • the resource-related fields in SCI can include initial transmission and retransmission time interval, initial transmission and retransmission frequency domain position or initial transmission time domain position, initial transmission frequency domain position, SL HARQ feedback time domain indicator, SL HARQ feedback frequency domain indication and other information.
  • the user senior level can configure the SCI format and the content of the SCI and transmission resource related fields for the user according to the user assistance information and channel measurement information reported by the user, as shown in Figure 12.
  • Fig. 6 shows a process example of the corresponding wireless communication method.
  • the method includes step S610 of setting the through link control information.
  • the direct link control information is used to indicate information related to the data retransmission from the source user equipment to the target user equipment through the direct link, which may include the time interval between the source user equipment's initial transmission and retransmission of data or the target user The time domain location information of the device's data feedback.
  • the method further includes a step S620 of notifying the source user equipment of the set through link control information.
  • embodiments of the present disclosure also include a computer-readable medium, which includes executable instructions, and when the executable instructions are executed by an information processing device, the information processing device executes the foregoing method.
  • the foregoing embodiment relates to the SL HARQ feedback mechanism when the HARQ feedback of multiple links is performed based on the SL HARQ configuration and when the receiving user is restricted by half-duplex, so as to ensure the reliability of communication.
  • the foregoing embodiment also involves the selection method of SL HARQ retransmission resources to ensure the validity of the retransmission resources of the user.
  • each step of the foregoing method and each component module and/or unit of the foregoing apparatus may be implemented as software, firmware, hardware, or a combination thereof.
  • a computer with a dedicated hardware structure such as the general-purpose computer 1400 shown in FIG. 7 can be installed from a storage medium or network to a program that constitutes the software for implementing the above method.
  • various programs various functions can be executed.
  • a central processing unit (ie, CPU) 1401 performs various processes in accordance with a program stored in a read only memory (ROM) 1402 or a program loaded from a storage part 1408 to a random access memory (RAM) 1403.
  • the RAM 1403 also stores data required when the CPU 1401 executes various processes and the like as necessary.
  • the CPU 1401, the ROM 1402, and the RAM 1403 are linked to each other via a bus 1404.
  • the input/output interface 1405 is also linked to the bus 1404.
  • the following components are linked to the input/output interface 1405: input part 1406 (including keyboard, mouse, etc.), output part 1407 (including display, such as cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.) , Storage part 1408 (including hard disk, etc.), communication part 1409 (including network interface card such as LAN card, modem, etc.).
  • the communication section 1409 performs communication processing via a network such as the Internet.
  • the driver 1410 can also be linked to the input/output interface 1405 according to needs.
  • Removable media 1411 such as magnetic disks, optical disks, magneto-optical disks, semiconductor memories, etc. are mounted on the drive 1410 as needed, so that the computer programs read from them are installed into the storage portion 1408 as needed.
  • a program constituting the software is installed from a network such as the Internet or a storage medium such as a removable medium 1411.
  • this storage medium is not limited to the detachable medium 1411 shown in FIG. 7 in which the program is stored and distributed separately from the device to provide the program to the user.
  • removable media 1411 include magnetic disks (including floppy disks (registered trademarks)), optical disks (including compact disk read-only memory (CD-ROM) and digital versatile disks (DVD)), magneto-optical disks (including mini disks (MD) (registered trademarks) )) and semiconductor memory.
  • the storage medium may be a ROM 1402, a hard disk included in the storage portion 1408, etc., in which programs are stored and distributed to users together with the devices containing them.
  • the embodiment of the present invention also relates to a program product storing machine-readable instruction codes.
  • the instruction code is read and executed by a machine, the above method according to the embodiment of the present invention can be executed.
  • a storage medium for carrying the above-mentioned program product storing machine-readable instruction codes is also included in the disclosure of the present invention.
  • the storage medium includes, but is not limited to, a floppy disk, an optical disk, a magneto-optical disk, a memory card, a memory stick, and so on.
  • the electronic device can be implemented as any type of gNB, evolved Node B (eNB), such as a macro eNB and a small eNB.
  • eNB evolved Node B
  • a small eNB may be an eNB covering a cell smaller than a macro cell, such as a pico eNB, a micro eNB, and a home (femto) eNB.
  • the electronic device may be implemented as any other type of base station, such as NodeB and base transceiver station (BTS).
  • BTS base transceiver station
  • the electronic device may include: a main body (also referred to as a base station device) configured to control wireless communication; and one or more remote wireless heads (RRH) arranged in a place different from the main body.
  • a main body also referred to as a base station device
  • RRH remote wireless heads
  • various types of terminals to be described below can all operate as base stations by temporarily or semi-persistently performing base station functions.
  • the electronic device When the electronic device is used on the user equipment side, it can be implemented as a mobile terminal (such as a smart phone, a tablet personal computer (PC), a notebook PC, a portable game terminal, a portable/dongle type mobile router, and a digital camera) or Vehicle terminal (such as car navigation equipment).
  • the electronic device may be a wireless communication module (such as an integrated circuit module including a single or multiple chips) installed on each of the aforementioned terminals.
  • FIG. 8 is a block diagram showing an example of a schematic configuration of a smart phone 2500 to which the technology of the present disclosure can be applied.
  • the smart phone 2500 includes a processor 2501, a memory 2502, a storage device 2503, an external connection interface 2504, a camera 2506, a sensor 2507, a microphone 2508, an input device 2509, a display device 2510, a speaker 2511, a wireless communication interface 2512, one or more An antenna switch 2515, one or more antennas 2516, a bus 2517, a battery 2518, and an auxiliary controller 2519.
  • the processor 2501 may be, for example, a CPU or a system on a chip (SoC), and controls the functions of the application layer and other layers of the smart phone 2500.
  • the memory 2502 includes RAM and ROM, and stores data and programs executed by the processor 2501.
  • the storage device 2503 may include a storage medium such as a semiconductor memory and a hard disk.
  • the external connection interface 2504 is an interface for connecting external devices such as memory cards and universal serial bus (USB) devices to the smart phone 2500.
  • the camera 2506 includes an image sensor, such as a charge coupled device (CCD) and a complementary metal oxide semiconductor (CMOS), and generates a captured image.
  • the sensor 2507 may include a group of sensors, such as a measurement sensor, a gyroscope sensor, a geomagnetic sensor, and an acceleration sensor.
  • the microphone 2508 converts the sound input to the smart phone 2500 into an audio signal.
  • the input device 2509 includes, for example, a touch sensor, a keypad, a keyboard, a button, or a switch configured to detect a touch on the screen of the display device 2510, and receives operations or information input from the user.
  • the display device 2510 includes a screen such as a liquid crystal display (LCD) and an organic light emitting diode (OLED) display, and displays an output image of the smart phone 2500.
  • the speaker 2511 converts the audio signal output from the smart phone 2500 into sound.
  • the wireless communication interface 2512 supports any cellular communication scheme (such as LTE and LTE-Advanced), and performs wireless communication.
  • the wireless communication interface 2512 may generally include, for example, a baseband (BB) processor 2513 and a radio frequency (RF) circuit 2514.
  • the BB processor 2513 may perform, for example, encoding/decoding, modulation/demodulation, and multiplexing/demultiplexing, and perform various types of signal processing for wireless communication.
  • the RF circuit 2514 may include, for example, a mixer, a filter, and an amplifier, and transmit and receive wireless signals via the antenna 2516.
  • the wireless communication interface 2512 may be a chip module on which a BB processor 2513 and an RF circuit 2514 are integrated. As shown in FIG.
  • the wireless communication interface 2512 may include multiple BB processors 2513 and multiple RF circuits 2514.
  • FIG. 8 shows an example in which the wireless communication interface 2512 includes a plurality of BB processors 2513 and a plurality of RF circuits 2514, the wireless communication interface 2512 may also include a single BB processor 2513 or a single RF circuit 2514.
  • the wireless communication interface 2512 may support another type of wireless communication scheme, such as a short-range wireless communication scheme, a near field communication scheme, and a wireless local area network (LAN) scheme.
  • the wireless communication interface 2512 may include a BB processor 2513 and an RF circuit 2514 for each wireless communication scheme.
  • Each of the antenna switches 2515 switches the connection destination of the antenna 2516 among a plurality of circuits included in the wireless communication interface 2512 (for example, circuits for different wireless communication schemes).
  • Each of the antennas 2516 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna), and is used for the wireless communication interface 2512 to transmit and receive wireless signals.
  • the smart phone 2500 may include multiple antennas 2516.
  • FIG. 8 shows an example in which the smart phone 2500 includes a plurality of antennas 2516, the smart phone 2500 may also include a single antenna 2516.
  • the smart phone 2500 may include an antenna 2516 for each wireless communication scheme.
  • the antenna switch 2515 may be omitted from the configuration of the smart phone 2500.
  • the bus 2517 connects the processor 2501, memory 2502, storage device 2503, external connection interface 2504, camera 2506, sensor 2507, microphone 2508, input device 2509, display device 2510, speaker 2511, wireless communication interface 2512, and auxiliary controller 2519 to each other. connection.
  • the battery 2518 supplies power to each block of the smart phone 2500 shown in FIG. 8 via a feeder line, and the feeder line is partially shown as a dashed line in the figure.
  • the auxiliary controller 2519 operates the minimum necessary functions of the smartphone 2500 in the sleep mode, for example.
  • the transceiver device of the wireless communication device on the user equipment side may be implemented by the wireless communication interface 2512.
  • at least part of the processing circuit of the electronic device on the user equipment side or the wireless communication device and/or the functions of each unit may also be implemented by the processor 2501 or the auxiliary controller 2519.
  • the power consumption of the battery 2518 can be reduced by executing part of the functions of the processor 2501 by the auxiliary controller 2519.
  • the processor 2501 or the auxiliary controller 2519 can execute the processing circuit and/or the processing circuit of each unit of the electronic device or the wireless communication device on the user equipment side according to the embodiment of the present invention by executing the program stored in the memory 2502 or the storage device 2503. At least part of the function.
  • FIG. 9 is a block diagram showing an example of a schematic configuration of a gNB to which the technology of the present disclosure can be applied.
  • the gNB 2300 includes one or more antennas 2310 and base station equipment 2320.
  • the base station device 2320 and each antenna 2310 may be connected to each other via a radio frequency (RF) cable.
  • RF radio frequency
  • Each of the antennas 2310 includes a single or multiple antenna elements (such as multiple antenna elements included in a multiple input multiple output (MIMO) antenna), and is used for the base station device 2320 to transmit and receive wireless signals.
  • the gNB 2300 may include multiple antennas 2310.
  • multiple antennas 2310 may be compatible with multiple frequency bands used by gNB 2300.
  • FIG. 9 shows an example in which the gNB 2300 includes multiple antennas 2310, the gNB 2300 may also include a single antenna 2310.
  • the base station equipment 2320 includes a controller 2321, a memory 2322, a network interface 2323, and a wireless communication interface 2325.
  • the controller 2321 may be, for example, a CPU or a DSP, and operates various functions of a higher layer of the base station apparatus 2320. For example, the controller 2321 generates a data packet based on data in a signal processed by the wireless communication interface 2325, and transmits the generated packet via the network interface 2323. The controller 2321 may bundle data from a plurality of baseband processors to generate a bundled packet, and transfer the generated bundled packet. The controller 2321 may have a logic function for performing control such as wireless resource control, radio bearer control, mobility management, admission control, and scheduling. This control can be performed in conjunction with nearby gNB or core network nodes.
  • the memory 2322 includes RAM and ROM, and stores programs executed by the controller 2321 and various types of control data (such as a terminal list, transmission power data, and scheduling data).
  • the network interface 2323 is a communication interface for connecting the base station device 2320 to the core network 2324.
  • the controller 2321 can communicate with the core network node or another gNB via the network interface 2323.
  • the gNB 2300 and the core network node or other gNB may be connected to each other through logical interfaces (such as the S1 interface and the X2 interface).
  • the network interface 2323 may also be a wired communication interface or a wireless communication interface for a wireless backhaul line. If the network interface 2323 is a wireless communication interface, the network interface 2323 can use a higher frequency band for wireless communication than the frequency band used by the wireless communication interface 2325.
  • the wireless communication interface 2325 supports any cellular communication scheme, such as Long Term Evolution (LTE) and LTE-Advanced, and provides wireless connection to terminals located in the cell of the gNB 2300 via the antenna 2310.
  • the wireless communication interface 2325 may generally include, for example, a BB processor 2326 and an RF circuit 2327.
  • the BB processor 2326 can perform, for example, encoding/decoding, modulation/demodulation, and multiplexing/demultiplexing, and perform layers (such as L1, medium access control (MAC), radio link control (RLC), and packet data convergence protocol (PDCP)) various types of signal processing.
  • the BB processor 2326 may have part or all of the above-mentioned logical functions.
  • the BB processor 2326 may be a memory storing a communication control program, or a module including a processor and related circuits configured to execute the program.
  • the update program can change the function of the BB processor 2326.
  • the module may be a card or a blade inserted into the slot of the base station device 2320. Alternatively, the module can also be a chip mounted on a card or blade.
  • the RF circuit 2327 may include, for example, a mixer, a filter, and an amplifier, and transmit and receive wireless signals via the antenna 2310.
  • the wireless communication interface 2325 may include multiple BB processors 2326.
  • multiple BB processors 2326 may be compatible with multiple frequency bands used by gNB 2300.
  • the wireless communication interface 2325 may include a plurality of RF circuits 2327.
  • multiple RF circuits 2327 may be compatible with multiple antenna elements.
  • FIG. 9 shows an example in which the wireless communication interface 2325 includes a plurality of BB processors 2326 and a plurality of RF circuits 2327, the wireless communication interface 2325 may also include a single BB processor 2326 or a single RF circuit 2327.
  • the transceiver device of the wireless communication device on the base station side may be implemented by the wireless communication interface 2325.
  • the controller 2321 may execute at least a part of the functions of the electronic device or wireless communication device and/or the processing circuit of each unit on the base station side according to the embodiment of the present invention by executing a program stored in the memory 2322.
  • FIG. 10 is a block diagram showing an example of a schematic configuration of a car navigation device 2120 to which the technology of the present disclosure can be applied.
  • the car navigation device 2120 includes a processor 2121, a memory 2122, a global positioning system (GPS) module 2124, a sensor 2125, a data interface 2126, a content player 2127, a storage medium interface 2128, an input device 2129, a display device 2130, a speaker 2131, a wireless A communication interface 2133, one or more antenna switches 2136, one or more antennas 2137, and a battery 2138.
  • GPS global positioning system
  • the processor 2121 may be, for example, a CPU or SoC, and controls the navigation function and other functions of the car navigation device 2120.
  • the memory 2122 includes RAM and ROM, and stores data and programs executed by the processor 2121.
  • the GPS module 2124 uses GPS signals received from GPS satellites to measure the position (such as latitude, longitude, and altitude) of the car navigation device 2120.
  • the sensor 2125 may include a group of sensors, such as a gyroscope sensor, a geomagnetic sensor, and an air pressure sensor.
  • the data interface 2126 is connected to, for example, an in-vehicle network 2141 via a terminal not shown, and acquires data (such as vehicle speed data) generated by the vehicle.
  • the content player 2127 reproduces content stored in a storage medium (such as CD and DVD), which is inserted into the storage medium interface 2128.
  • the input device 2129 includes, for example, a touch sensor, a button, or a switch configured to detect a touch on the screen of the display device 2130, and receives an operation or information input from the user.
  • the display device 2130 includes a screen such as an LCD or an OLED display, and displays images of navigation functions or reproduced content.
  • the speaker 2131 outputs the sound of the navigation function or the reproduced content.
  • the wireless communication interface 2133 supports any cellular communication scheme such as LTE and LTE-Advanced, and performs wireless communication.
  • the wireless communication interface 2133 may generally include, for example, a BB processor 2134 and an RF circuit 2135.
  • the BB processor 2134 may perform, for example, encoding/decoding, modulation/demodulation, and multiplexing/demultiplexing, and perform various types of signal processing for wireless communication.
  • the RF circuit 2135 may include, for example, a mixer, a filter, and an amplifier, and transmit and receive wireless signals via the antenna 2137.
  • the wireless communication interface 2133 may also be a chip module on which the BB processor 2134 and the RF circuit 2135 are integrated. As shown in FIG.
  • the wireless communication interface 2133 may include multiple BB processors 2134 and multiple RF circuits 2135.
  • FIG. 10 shows an example in which the wireless communication interface 2133 includes a plurality of BB processors 2134 and a plurality of RF circuits 2135, the wireless communication interface 2133 may also include a single BB processor 2134 or a single RF circuit 2135.
  • the wireless communication interface 2133 may support another type of wireless communication scheme, such as a short-range wireless communication scheme, a near field communication scheme, and a wireless LAN scheme.
  • the wireless communication interface 2133 may include a BB processor 2134 and an RF circuit 2135.
  • Each of the antenna switches 2136 switches the connection destination of the antenna 2137 among a plurality of circuits included in the wireless communication interface 2133, such as circuits for different wireless communication schemes.
  • Each of the antennas 2137 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna), and is used for the wireless communication interface 2133 to transmit and receive wireless signals.
  • the car navigation device 2120 may include multiple antennas 2137.
  • FIG. 10 shows an example in which the car navigation device 2120 includes a plurality of antennas 2137, the car navigation device 2120 may also include a single antenna 2137.
  • the car navigation device 2120 may include an antenna 2137 for each wireless communication scheme.
  • the antenna switch 2136 may be omitted from the configuration of the car navigation device 2120.
  • the battery 2138 supplies power to each block of the car navigation device 2120 shown in FIG. 10 via a feeder line, and the feeder line is partially shown as a dashed line in the figure.
  • the battery 2138 accumulates power supplied from the vehicle.
  • the transceiving device or transceiving unit of the wireless communication device according to the embodiment of the present invention may be implemented by the wireless communication interface 2133. At least a part of the functions of the processing circuit and/or each unit of the electronic device or wireless communication device according to the embodiment of the present invention may also be implemented by the processor 2121.
  • the technology of the present disclosure may also be implemented as an in-vehicle system (or vehicle) 2140 including one or more blocks in a car navigation device 2120, an in-vehicle network 2141, and a vehicle module 2142.
  • vehicle module 2142 generates vehicle data (such as vehicle speed, engine speed, and failure information), and outputs the generated data to the vehicle network 2141.
  • the method of the present invention is not limited to be executed according to the time sequence described in the specification, and can also be executed in other time sequence, in parallel or independently. Therefore, the execution order of the methods described in this specification does not limit the technical scope of the present invention.
  • the embodiment of the present invention further includes:
  • An electronic device for wireless communication which includes a processing circuit configured to:
  • the operation includes retransmission of the data according to the time interval.
  • the operation includes receiving feedback information of the target user equipment on the data based on the time domain location information, and retransmitting the data based on the feedback information.
  • the operation includes receiving feedback of the data in units of transmission blocks or code block groups and performing retransmission of the data.
  • time domain location information includes:
  • One or more time domain locations for receiving feedback information are One or more time domain locations for receiving feedback information.
  • One or more time windows for receiving feedback information are One or more time windows for receiving feedback information.
  • time domain position information includes a plurality of time domain positions for receiving feedback information
  • operation includes:
  • time domain location information includes multiple time windows for receiving feedback information
  • operation includes:
  • time domain location information includes a time domain location and a time window for receiving feedback information
  • operation includes:
  • the code block group transmits information.
  • the operation further includes determining a retransmission resource for the data according to information related to the retransmission resource.
  • a wireless communication method including:
  • An electronic device for wireless communication which includes a processing circuit configured to:
  • Control to receive data and information related to the retransmission of the data from the source user equipment through the through link
  • the operation includes receiving a retransmission of the data according to the time interval.
  • the operation includes sending feedback information of the data to the source user equipment based on the time domain location information.
  • the operation includes performing feedback of the data in units of transmission blocks or code block groups.
  • time-domain location information includes one or more time-domain locations for sending feedback information and/or one or more time-domain locations for sending feedback information Time window;
  • the operation includes sending the feedback information at one of the one or more time domain locations or within one of the one or more time windows.
  • the link to which the feedback information is to be sent is selected according to the priority.
  • the feedback information includes the identification information of the corresponding source user equipment; and/or
  • the codebook is used to scramble the feedback information.
  • the feedback information includes information related to retransmission resources of the data.
  • the retransmission of the data is received based on the retransmission resource.
  • a wireless communication method including:
  • An electronic device for wireless communication including a processing circuit configured to:
  • the direct link control information being used to indicate information related to data retransmission from the source user equipment to the target user equipment through the direct link;
  • the information related to the data retransmission includes the time interval of the initial transmission and retransmission of the data by the source user equipment or the time domain location information of the feedback of the target user equipment on the data.
  • a wireless communication method including:
  • the direct link control information being used to indicate information related to data retransmission from the source user equipment to the target user equipment through the direct link;
  • the information related to the data retransmission includes the time interval of the initial transmission and retransmission of the data by the source user equipment or the time domain location information of the feedback of the target user equipment on the data.

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Abstract

本公开涉及电子装置、无线通信方法和计算机可读介质。根据一个实施例的用于无线通信的电子装置包括处理电路。处理电路被配置为进行控制以通过直通链路向目标用户设备发送数据以及与数据的重传有关的信息。处理电路还被配置为控制用于数据的重传的操作。

Description

电子装置、无线通信方法和计算机可读介质
本申请要求于2019年2月13日提交中国专利局、申请号为201910112921.X、发明名称为“电子装置、无线通信方法和计算机可读介质”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本公开一般涉及无线通信领域，更具体地，涉及用于无线通信的电子装置、无线通信方法以及计算机可读介质。
背景技术
3GPP(第三代合作伙伴项目)的TS 36.213中定义了在LTE(长期演进)V2X(车辆与其他设备)通信中用户设备(UE)用于传输PSCCH(物理直通链路控制信道)和相应PSSCH(物理直通链路共享信道)的时频资源的确定方式和接收PSCCH的UE过程，还定义了SCI(直通链路控制信息)的信息域和配置方式。TS 36.321中定义了在LTE V2X中MAC(媒体访问控制)层基于重传的直通链路HARQ(混合自动重传请求)的过程。TS 36.300中定义了LTE V2X中的多链路传输。
发明内容
在下文中给出了关于本发明实施例的简要概述，以便提供关于本发明的某些方面的基本理解。应当理解，以下概述并不是关于本发明的穷举性概述。它并不是意图确定本发明的关键或重要部分，也不是意图限定本发明的范围。其目的仅仅是以简化的形式给出某些概念，以此作为稍后论述的更详细描述的前序。
根据一个实施例，提供一种用于无线通信的电子装置，其包括处理电路。处理电路被配置为进行控制以通过直通链路向目标用户设备发送数据以及与数据的重传有关的信息。处理电路还被配置为控制用于数据的重传的操作。
根据一个实施例，一种无线通信方法包括通过直通链路向目标用户设备发送数据以及与所述数据的重传有关的信息的步骤。该方法还包括进行用于数据的重传的操作的步骤。
根据一个实施例，提供一种用于无线通信的电子装置，其包括处理电路。处理电路被配置为进行控制以通过直通链路从源用户设备接收数据以及与数据的重传有关的信息。处理电路还被配置为控制用于数据的重传的操作。
根据一个实施例，一种无线通信方法包括通过直通链路从源用户设备接收数据以及与数据的重传有关的信息的步骤。该方法还包括进行用于数据的重传的操作的步骤。
根据一个实施例，提供一种用于无线通信的电子装置，其包括处理电路。处理电路被配置为设置直通链路控制信息，直通链路控制信息用于指示与通过直通链路从源用户设备向目标用户设备进行的数据重传有关的信息。处理电路还被配置为进行控制以将所设置的直通链路控制信息通知给源用户设备。与数据重传有关的信息包括源用户设备对数据的初传和重传的时间间隔或目标用户设备对数据的反馈的时域位置信息。
根据一个实施例，一种无线通信方法包括设置直通链路控制信息的步骤。直通链路控制信息用于指示与通过直通链路从源用户设备向目标用户设备进行的数据重传有关的信息。该方法还包括将所设置的直通链路控制信息通知给源用户设备的步骤。与数据重传有关的信息包括源用户设备对数据的初传和重传的时间间隔或目标用户设备对数据的反馈的时域位置信息。
根据另一个实施例，提供一种计算机可读介质，其包括可执行指令，当可执行指令被信息处理设备执行时，使得信息处理设备执行上述方法。
通过本发明实施例，能够有效地进行直通链路通信中的数据反馈和/或数据重传，从而保障直通链路通信的可靠性。
附图说明
本发明可以通过参考下文中结合附图所给出的描述而得到更好的理解，其中在所有附图中使用了相同或相似的附图标记来表示相同或者相似的部件。所述附图连同下面的详细说明一起包含在本说明书中并且形成本说明书的一部分，而且用来进一步举例说明本发明的优选实施例和解释本发明的原理和优点。在附图中：
图1是示出根据本发明一个实施例的用于无线通信的电子装置的配置示例的框图；
图2是示出根据本发明的一个实施例的无线通信方法的过程示例的流程图；
图3是示出根据本发明的另一个实施例的用于无线通信的电子装置的配置示例的框图；
图4是示出根据本发明的另一个实施例的无线通信方法的过程示例的流程图；
图5是示出根据本发明的又一个实施例的用于无线通信的电子装置的配置示例的框图；
图6是示出根据本发明的又一个实施例的无线通信方法的过程示例的流程图；
图7是示出实现本公开的方法和设备的计算机的示例性结构的框图；
图8是示出可以应用本公开内容的技术的智能电话的示意性配置的示例的框图；
图9是示出可以应用本公开内容的技术的gNB的示意性配置的示例的框图；
图10是可以应用本公开内容的技术的汽车导航设备的示意性配置的示例的框图；
图11是示出直通链路控制信息的配置方式的一个示例的流程图；
图12是示出直通链路控制信息的配置方式的另一个示例的流程图；
图13是示出基于重传的直通链路数据传输的一个示例的流程图；
图14是示出基于反馈的直通链路数据传输的一个示例的流程图；
图15是示出基于码块组的直通链路数据传输的示意图；
图16是用于说明直通链路反馈信息的视频资源的一个示例的示意图；
图17是用于说明直通链路反馈信息的视频资源的另一个示例的示意图；
图18是用于说明直通链路反馈信息的视频资源的另一个示例的示意图；
图19是用于说明接收用户侧的反馈处理的示例的流程图；
图20是用于说明多发送用户情况下的反馈处理的示例的流程图；
图21是用于说明多发送用户情况下的反馈处理的另一示例的流程图；
图22是用于说明多发送用户情况下的反馈处理的又一示例的流程图；
图23是用于说明与重传资源配置有关的过程示例的流程图；以及
图24是用于说明与重传资源选择有关的过程示例的流程图。
具体实施方式
下面将参照附图来说明本发明的实施例。在本发明的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。应当注意，为了清楚的目的，附图和说明中省略了与本发明无关的、本领域普通技术人员已知的部件和处理的表示和描述。
下面参照图1说明根据本公开的一个实施例的用于无线通信的电子装置的配置示例。如图1所示，根据本实施例的用于无线通信的电子装置100包括处理电路110。处理电路110例如可以实现为特定芯片、芯片组或者中央处理单元(CPU)等。
根据本实施例的电子装置可以实现在用户设备侧。更具体地，用户设备例如可以包括车辆。然而本发明不限于此，而是可以用于新无线(NR)直通链路(Sidelink)的各种应用场景，例如机器类通信(MTC)、设备至设备(D2D)通信、车辆与其他设备(V2X)通信、物联网(IOT)通信、无人机通信等。V2X通信可以包括车辆与车辆(V2V)通信、车辆与行人(V2P)通信以及车辆与基础设施(V2I)通信等。
如图1所示，处理电路110包括发送控制单元111和操作控制单元113。需要指出，虽然附图中以功能块的形式示出了发送控制单元111和操作控制单元113，然而应理解，各单元的功能也可以由处理电路作为一个整体来实现，而并不一定是通过处理电路中分立的实际部件来实现。另外，虽然图中以一个框示出处理电路，然而电子装置可以包括多个处理电路，并且可以各单元的功能分布到多个处理电路中，从而由多个处理电路协同操作来执行这些功能。
发送控制单元111被配置为进行控制以通过直通链路向目标用户设备发送数据以及与数据的重传有关的信息。
也就是说，根据本实施例的电子装置可以实现在源用户设备(即作为所传输的数据的发送源的用户设备，在本文中也可称为发送用户)侧，其将数据发送给目标用户设备(即作为所传输的数据的发送目标的用户设备，在本文中也可称为接收用户)侧。
源用户设备例如可以将与数据的重传有关的信息作为直通链路控制信息 (SCI)发送给目标用户设备。
操作控制单元113被配置为控制用于数据的重传的操作。
作为示例，用于数据的重传的操作可以包括基于重传的直通链路混合自动重传请求(SL HARQ)操作或者基于反馈的SL HARQ操作。基于重传的SL HARQ是指发送用户通过多次重传来保证通信的可靠性的方式。基于反馈的SL HARQ是接收用户例如通过直通链路反馈信道(PSFCH)向发送用户反馈确认(ACK)或非确认(NACK)信息，以判断发送用户是否需要重传来保证通信可靠性的方式。
对应于基于重传的SL HARQ，根据一个实施例，与数据的重传有关的信息可以包括数据的初传和重传的时间间隔。相应地，用于数据的重传的操作可以包括根据时间间隔进行数据的重传。
图13示出了基于重传的SL HARQ的示例方式。如图13所示，发送设备将SCI和数据发送给接收用户，并在初传重传时间间隔之后对数据进行重传。
除了初传和重传的时间间隔之外，SCI中还可以包括以下信息中的一项或更多项：业务优先级、资源预留、源ID信息、目的ID信息、初传和重传频域位置、调制与编码方式、重传索引等。
关于SCI中的初传和重传频域位置域，Mode 1(基站辅助模式)用户可以根据基站指示来配置其内容，Mode 2(无基站辅助模式)用户可以根据高层指示来配置其内容。
类似地，关于SCI中的初传和重传时间间隔域，Mode 1用户可以根据基站指示来配置其内容，Mode 2用户可以根据高层指示来配置其内容。特别地，例如当初传和重传时间间隔域被配置为0时，用户可以送业务而无需进行重传。
对应于基于反馈的SL HARQ，根据另一个实施例，与数据的重传有关的信息可以包括用于目标用户设个被对数据进行的反馈的时域位置信息。相应地，用于数据的重传的操作可以包括基于时域位置信息接收目标用户设备对数据的反馈信息，以及基于反馈信息进行数据的重传。
图14示出了基于反馈的SL HARQ的示例方式。如图14所示，假设接收用户接收并成功解码相关传输块(TB)，接收用户向发送用户反馈ACK信息。若接收用户接收后未成功解码相关传输块，则接收用户向发送用户反馈NACK 信息，发送用户在接收到NACK反馈后进行重传。
尽管该示例中以传输块为单位进行反馈和重传，然而本发明不限于此。例如，也可以以码块组(CBG)为单位进行反馈和接收。
图15是基于码块组的直通链路数据传输的示意图。如图15所示，在一个TB中包含多个码块(CB)，若干码块可以构成一个码块组。
根据一个实施例，与数据的重传有关的信息还可以包括指示重传单位(传输块或码块组)的信息，用于数据的重传的操作可以包括以传输块或码块组为单位接收数据的反馈和进行数据的重传。
更具体地，对于以码块组为单位接收数据的反馈和进行数据的重传的情况，若接收用户成功接收并解码CBG中的码字，则接收用户可以针对该CBG生成1比特的ACK信息；若接收用户未成功接收并解码CBG中的码字，则接收用户可以针对该CBG生成1比特的NACK信息。
若每个TB包含N个CBG，则码本可以包括N比特的ACK/NACK信息。接收用户向发送用户反馈该码本信息。
相应地，SCI中例如可以包括业务优先级、资源预留、源ID信息、目的ID信息、初传和反馈传输频域位置、初传和反馈传输时域位置、调制与编码方式、重传索引、HARQ ID、CBG传输信息等。
CBG传输信息可以用于指示接收用户进行SL HARQ反馈的单位(TB或CBG)。例如，当CBG域为空时表示为非CBG SL HARQ，否则表示为CBG SL HARQ。
此外，在单播和组播通信中，若通信用户都支持基于反馈的SL HARQ方式，则接收用户通过直通链路反馈信道(PSFCH)向发送用户反馈ACK/NACK信息。关于PSFCH的资源配置，从发送用户发送给接收用户的SCI中可以包括反馈传输频域位置以及反馈传输时域位置。
根据一个实施例，时域位置信息可以包括用于接收反馈信息的一个或更多个时域位置。此外，时域位置信息可以包括用于接收反馈信息的一个或更多个时间窗口。
接下来，首先说明非CBG SL HARQ中发送用户为接收用户配置PSFCH资源的示例方式。发送用户为直通链路反馈信息指示时频资源以用于接收用户反馈ACK/NACK信息。
如图16所示，根据一个示例方式，在SCI中，发送用户为直通链路反馈信息指示n个(n大于等于1)时域和频域位置。
如图17所示，根据另一个示例方式，在SCI中，发送用户为直通链路反馈信息指示接频域位置和反馈时间窗。
如图18所示，根据又一个示例方式，在SCI中，发送用户为直通链路反馈信息指示一个时频位置和反馈时间窗。
另外，对于CBG SL HARQ，发送用户可以以类似的方式为接收用户配置PSFCH资源，区别在于发送用户为直通链路反馈信息指示的时频资源可以用于反馈码本信息。
接收用户在接收到SCI信息并根据SCI域中的指示进行解码后，可以确定SL HARQ反馈资源。发送用户在为接收用户配置的PSFCH资源位置等待接收SL HARQ反馈信息。
接下来，分别对应于上述反馈资源配置方式来说明SL HARQ反馈的示例方式。
根据一个实施例，用于数据重传的时域位置信息可以包括用于接收反馈信息的多个时域位置，并且用于数据重传的操作可以包括相继在多个时域位置上接收反馈信息，直至接收到反馈信息；若在多个时域位置上均未收到反馈信息，则执行重传。
图19示出了示例过程，其中N为SL HARQ反馈信息配置资源数目，将SL HARQ反馈资源以时间先后顺序称为第一SL HARQ资源、第二SL HARQ资源等。
若接收用户通过检测确定发送用户配置的第一SL HARQ反馈资源未被占用，并在此时域位置可为发送状态，则接收用户在第一SL HARQ反馈资源上发送SL HARQ反馈信息。否则，继续检测下一反馈资源。
若发送用户指示的N个反馈资源都不可进行SL HARQ反馈，则接收用户不对此次传输进行反馈。
相应地，若发送用户在第一SL HARQ资源位置接收到SL HARQ反馈信息，发送用户收到ACK信息则传输完成，发送用户收到NACK信息则进行重传。
若发送用户未在第一SL HARQ资源位置接收到SL HARQ反馈信息，发 送用户继续在下一个SL HARQ资源位置等待接收SL HARQ反馈。若收到SL HARQ则接收反馈成功，否则继续执行此步骤至在SL HARQ反馈资源位置上接收到反馈信息为止。
若发送用户在为接收用户配置的PSFCH资源位置上皆未收到SL HARQ反馈，则执行重传步骤。
根据另一个实施例，用于数据重传的时域位置信息可以包括用于接收反馈信息的多个时间窗口，并且用于数据重传的操作可以包括相继在多个时间窗口内接收反馈信息，直至接收到反馈信息；若在多个时间窗口内均未收到反馈信息，则执行重传。
更具体地，例如接收用户在发送用户配置的反馈时间窗内检测可以进行SL HARQ反馈的时频资源，并根据业务的时延需求选择SL HARQ反馈的时域资源，进行SL HARQ反馈。否则，接收用户不对此次传输进行反馈。
相应地，发送用户在为接收用户配置的PSFCH的时间窗内等待接收SL HARQ反馈，若发送用户接收到SL HARQ反馈信息则接收反馈成功。若发送用户在PSFCH时间窗内的资源部分未收到SL HARQ反馈，则执行重传步骤。
根据又一个实施例，用于数据重传的时域位置信息包括用于接收反馈信息的时域位置和时间窗口，并且用于数据重传的操作可以包括相继在时域位置上和时间窗口内接收反馈信息，直至接收到反馈信息；若时域位置上和时间窗口内均未收到反馈信息，则执行重传。
更具体地，若接收用户检测在发送用户配置的第一SL HARQ反馈资源未被占用，并在此时域位置可为发送状态，则接收用户在第一SL HARQ反馈资源上发送SL HARQ反馈信息。
若接收用户检测在发送用户配置的第一SL HARQ反馈资源已被占用，或在此时域位置不可为发送状态，且发送用户指示一个SL HARQ反馈时间窗，则接收用户继续检测SL HARQ反馈时间窗内的资源，根据业务的时延需求选择SL HARQ反馈的时域资源，进行SL HARQ反馈。
否则，接收用户不对此次传输进行反馈。
相应地，若发送用户在第一SL HARQ资源位置接收到SL HARQ反馈信息，发送用户收到ACK信息则传输完成，发送用户收到NACK信息则进行重传。
若发送用户未在第一SL HARQ资源位置接收到SL HARQ反馈信息，发送用户继续在SL HARQ资源时间窗内等待接收SL HARQ反馈。若收到SL HARQ则接收反馈成功，否则发送用户执行重传步骤。
上面结合具体示例说明了反馈和重传的方式。此外，在发送用户1和发送用户2通过资源感知选择发送资源，分别通过链路一和链路二与接收用户3进行通信的情况下，发送用户1和发送用户2为接收用户3确定的PSFCH的资源有可能发生全部或部分重合的情况。接下来，说明针对反馈资源碰撞情况的示例实施例。
参照图22，假设接收用户检测到链路一和链路二的PSFCH资源发生碰撞，接收用户将对链路一和链路二的SL HARQ反馈信息进行处理后分别发给发送用户1和发送用户2。
发送用户可以在PSFCH资源上检测信号，利用发送用户侧的信息对反馈信号进行解码接收。发送用户仅能解码所在链路的反馈信息，从而能够解决反馈资源碰撞的问题。
相应地，根据一个实施例，发送用户侧的用于数据重传的操作可以包括对所接收的反馈信息进行解码，以及确定经解码的反馈信息是否是针对该发送用户所发送的数据的反馈信息。
更具体地，对SL HARQ反馈信息的处理可以包括使用各自链路发送用户的ID或HARQ ID。或者，可以采用通过码本等进行加扰的方式。
相应地，根据一个实施例，发送用户侧的用于数据重传的操作可以包括以码块组为单位进行数据的反馈和重传，并且反馈信息可以包括码本信息。
此外，对于接收用户通过多条链路进行数据接收的情况，考虑到用户的功率限制，可以设置在同一资源上支持的最多反馈链路数目M。该数据例如可以通过系统信息或RRC(无线资源控制)信令配置、基于位置选择或者预配置。
假设接收用户检测PSFCH发生碰撞的链路为m(m＞1)条链路，若M≥m，则每条链路采用前述实施例中的方案进行反馈。若M＜m,则例如可以通过比较各条链路的优先级，对优先级高的M条链路在此PSFCH资源上执行反馈，剩余链路可以在此链路的其他反馈资源上进行反馈，或者如果没有其他反馈资源则可以不进行反馈。
接下来，说明基于反馈对数据进行重传的示例方式。
对于非CBG SL HARQ，当发送用户接收到接收用户反馈的NACK信息后，发送用户可以对此HARQ进行相关的传输块(TB)进行重传。对于CBG SL HARQ，当发送用户接收到接收用户反馈的码本信息后，发送用户可以对此码本中反馈为NACK的CBG进行重传。
发送用户可以通过与数据初传的资源相同的资源或不同的资源进行数据的重传。此外，发送用户可以根据接收用户的反馈信息来确定用于数据重传的资源。
例如，接收用户可以在传输SL HARQ反馈信息中包含NACK信息的同时传输重传反馈信息，以辅助发送用户选择SL HARQ重传的资源。重传反馈信息例如可以包括重传资源候选集合、接收用户执行资源感知的测量结果(部分或全部)、信道忙碌比率(CBR)测量信息、信道状态信息(CSI)等。
相应地，根据一个实施例，来自接收用户的反馈信息可以包括与数据的重传资源有关的信息，并且用于数据的重传的操作可以包括根据与重传资源有关的信息来确定用于数据的重传资源。
在发送用户是Mode 1用户的情况下，基于发送用户对资源的测量报告和接收用户的重传反馈信息，基站可以根据资源池情况和资源报告为发送用户配置重传资源。在发送用户是Mode 2用户的情况下，发送用户可以基于对资源的测量报告和接收用户的重传反馈信息来选择重传资源。
此外，在数据重传中，例如可以在SCI中设置重传索引和HARQ ID等信息，以区分初传和重传。
图23示出了Mode 1发送用户根据基站配置和资源报告信息获得重传资源的示例过程。
首先，发送用户接收并解码接收用户的SL HARQ反馈信息和重传反馈信息。接下来，Mode 1用户接收到NACK后向基站发送资源请求和资源报告。基站根据Mode 1用户的重传请求分配重传资源，并通知给发送用户。Mode 1用户在重传资源上进行重传。
图24示出了Mode 2发送用户选择重传资源的示例过程。
首先，发送用户接收并解码接收用户的SL HARQ反馈信息和重传反馈信息。接下来，Mode 2用户根据重传反馈请求和对资源的测量结果选择合适的 重传资源，并在重传资源上进行重传。
在前面针对根据本发明实施例的电子装置的说明过程中，显然也公开了以下过程和方法。接下来，在不重复前面已描述的细节的情况下，给出对根据本发明实施例的无线通信方法的说明。
如图2所示，根据本实施例的无线通信方法包括通过直通链路向目标用户设备发送数据以及与数据的重传有关的信息的步骤S210，以及进行用于数据的重传的操作的步骤S220。
该方法可以实现在上述发送用户侧。
此外，本发明还包括实现在接收用户侧的装置和方法。接下来，在不重复与前面针对发送用户侧描述的细节相应的细节的情况下，给出对实现在接收用户侧的装置和方法的实施例的说明。
如图3所示，根据本实施例的用于无线通信的电子装置300包括处理电路310。处理电路310包括接收控制单元311和操作控制单元313。
根据本实施例的电子装置可以实现在诸如车辆的用户设备侧，并且可以应用于直通链路的前述各种应用场景。
接收控制单元311被配置为进行控制以通过直通链路从源用户设备接收数据以及与数据的重传有关的信息。
操作控制单元313被配置为控制用于数据的重传的操作。
根据一个实施例，与数据的重传有关的信息可以包括数据的初传和重传的时间间隔，用于数据的重传的操作可以包括根据时间间隔接收数据的重传。
根据另一个实施例，与数据的重传有关的信息可以包括对数据的反馈的时域位置信息，用于数据的重传的操作可以包括基于时域位置信息向源用户设备发送数据的反馈信息。
与数据的重传有关的信息还可以包括指示重传单位的信息，用于数据的重传的操作可以包括以传输块或码块组为单位进行数据的反馈。
时域位置信息可以包括用于发送反馈信息的一个或更多个时域位置和/或用于发送反馈信息的一个或更多个时间窗口，并且可以在一个或更多个时域位置之一上或者在一个或更多个时间窗口之一内发送反馈信息。
根据一个实施例，与数据的重传有关的信息可以包括数据的业务优先级，用于数据的重传的操作可以包括基于业务优先级进行反馈信息的发送与其他 数据的接收，或者可以包括多个链路的反馈信息的发送。
更具体地，在多个链路的数量超过预定阈值的情况下，可以根据优先级选择要发送反馈信息的链路。
此外，当接收用户检测到第一链路一的SL HARQ反馈资源由于第二链路正在接收信息而受到半双工限制时，也可以根据优先级进行各链路的反馈。
如图20所示，在接收用户检测到SL HARQ反馈受到半双工限制的情况下，接收用户根据链路一和链路二业务优先级或QoS(服务质量)等级选择优先处理的链路。
若链路一优先级高于链路二优先级，则接收用户优先执行链路一的SL HARQ反馈，中断接收链路二的信息。
若链路二支持CBG SL HARQ，如果在SL HARQ反馈结束后链路二信息仍可接收，则接收用户继续进行接收。在链路二传输结束后对未接收的CBG反馈NACK信息，请求重传。若链路二支持非CBG SL HARQ，如果在SL HARQ反馈结束后链路二信息仍可接收，则接收用户可以接续进行接收。在链路二传输结束后，向发送用户2反馈NACK信息。
另一方面，若链路二优先级高于链路一优先级，则接收用户优先接收链路二信息，而不执行链路一的SL HARQ反馈。当接收用户对链路二信息接收完毕时，接收用户根据SCI指示执行链路一的SL HARQ反馈，如图21所示。
为了区分多个链路的反馈信息，根据一个实施例，可以通过在反馈信息中包含相应源用户设备的标识信息或者利用码本对反馈信息进行加扰。
此外，还可以在反馈信息中包含与数据的重传资源有关的信息，并且基于重传资源来接收数据的重传。
图4示出了相应无线通信方法的过程示例。该方法包括通过直通链路从源用户设备接收数据以及与数据的重传有关的信息的步骤S410，以及进行用于数据的重传的操作的步骤S420。
此外，本发明还包括实现在基站侧的装置和方法。接下来，在不重复与前面针对用户侧描述的细节相应的细节的情况下，给出对实现在基站的装置和方法的实施例的说明。
如图5所示，根据本实施例的用于无线通信的电子装置500包括处理电路510。处理电路510包括设置单元511和通知单元513。
设置单元511被配置为设置直通链路控制信息。直通链路控制信息用于指示与通过直通链路从源用户设备向目标用户设备进行的数据重传有关的信息，其可以包括源用户设备对数据的初传和重传的时间间隔或目标用户设备对数据的反馈的时域位置信息。
换句话说，所设置的SCI格式可以包括用于基于重传的SL HARQ的SCI格式和用于基于反馈的SL HARQ的SCI格式。
此外，还可以设置用户辅助信息，其例如可以包括业务传输数据最大传输块大小、业务优先级信息、业务SL HARQ机制偏好等信息。
通知单元513被配置为进行控制以将所设置的直通链路控制信息通知给源用户设备。
更具体地，对于Mode 1用户，基站可以根据用户上报的用户辅助信息和信道测量等信息为用户配置SCI格式和SCI内和传输资源相关字段的内容，如图11所示。
对于Mode 1用户，SCI中的资源相关域可以包括初传和重传时间间隔、初传和重传频域位置或初传时域位置、初传频域位置、SL HARQ反馈时域指示、SL HARQ反馈频域指示等信息。
此外，对于Mode 2用户，用户高层可以根据用户上报的用户辅助信息和信道测量等信息为用户配置SCI格式和SCI和传输资源相关字段的内容，如图12所示。
图6示出了相应的无线通信方法的过程示例。该方法包括设置直通链路控制信息的步骤S610。直通链路控制信息用于指示与通过直通链路从源用户设备向目标用户设备进行的数据重传有关的信息，其可以包括源用户设备对数据的初传和重传的时间间隔或目标用户设备对数据的反馈的时域位置信息。该方法还包括将所设置的直通链路控制信息通知给源用户设备的步骤S620。
此外，本公开实施例还包括计算机可读介质，其包括可执行指令，当可执行指令被信息处理设备执行时，使得信息处理设备执行上述方法。
上述实施例中涉及在基于SL HARQ配置执行多条链路HARQ反馈时以及接收用户受到半双工限制时的SL HARQ反馈机制，以保证通信的可靠性。
此外，上述实施例中还涉及了SL HARQ重传资源的选择方式，以保证用户重传资源的有效性。
作为示例，上述方法的各个步骤以及上述装置的各个组成模块和/或单元可以实施为软件、固件、硬件或其组合。在通过软件或固件实现的情况下，可以从存储介质或网络向具有专用硬件结构的计算机(例如图7所示的通用计算机1400)安装构成用于实施上述方法的软件的程序，该计算机在安装有各种程序时，能够执行各种功能等。
在图7中，中央处理单元(即CPU)1401根据只读存储器(ROM)1402中存储的程序或从存储部分1408加载到随机存取存储器(RAM)1403的程序执行各种处理。在RAM 1403中，也根据需要存储当CPU 1401执行各种处理等等时所需的数据。CPU 1401、ROM 1402和RAM 1403经由总线1404彼此链路。输入/输出接口1405也链路到总线1404。
下述部件链路到输入/输出接口1405：输入部分1406(包括键盘、鼠标等等)、输出部分1407(包括显示器，比如阴极射线管(CRT)、液晶显示器(LCD)等，和扬声器等)、存储部分1408(包括硬盘等)、通信部分1409(包括网络接口卡比如LAN卡、调制解调器等)。通信部分1409经由网络比如因特网执行通信处理。根据需要，驱动器1410也可链路到输入/输出接口1405。可拆卸介质1411比如磁盘、光盘、磁光盘、半导体存储器等等根据需要被安装在驱动器1410上，使得从中读出的计算机程序根据需要被安装到存储部分1408中。
在通过软件实现上述系列处理的情况下，从网络比如因特网或存储介质比如可拆卸介质1411安装构成软件的程序。
本领域的技术人员应当理解，这种存储介质不局限于图7所示的其中存储有程序、与设备相分离地分发以向用户提供程序的可拆卸介质1411。可拆卸介质1411的例子包含磁盘(包含软盘(注册商标))、光盘(包含光盘只读存储器(CD-ROM)和数字通用盘(DVD))、磁光盘(包含迷你盘(MD)(注册商标))和半导体存储器。或者，存储介质可以是ROM 1402、存储部分1408中包含的硬盘等等，其中存有程序，并且与包含它们的设备一起被分发给用户。
本发明的实施例还涉及一种存储有机器可读取的指令代码的程序产品。所述指令代码由机器读取并执行时，可执行上述根据本发明实施例的方法。
相应地，用于承载上述存储有机器可读取的指令代码的程序产品的存储介 质也包括在本发明的公开中。所述存储介质包括但不限于软盘、光盘、磁光盘、存储卡、存储棒等等。
本申请的实施例还涉及以下电子设备。在电子设备用于基站侧的情况下，电子设备可以被实现为任何类型的gNB、演进型节点B(eNB)，诸如宏eNB和小eNB。小eNB可以为覆盖比宏小区小的小区的eNB，诸如微微eNB、微eNB和家庭(毫微微)eNB。代替地，电子设备可以被实现为任何其他类型的基站，诸如NodeB和基站收发台(BTS)。电子设备可以包括：被配置为控制无线通信的主体(也称为基站设备)；以及设置在与主体不同的地方的一个或多个远程无线头端(RRH)。另外，下面将描述的各种类型的终端均可以通过暂时地或半持久性地执行基站功能而作为基站工作。
电子设备用于用户设备侧的情况下，可以被实现为移动终端(诸如智能电话、平板个人计算机(PC)、笔记本式PC、便携式游戏终端、便携式/加密狗型移动路由器和数字摄像装置)或者车载终端(诸如汽车导航设备)。此外，电子设备可以为安装在上述终端中的每个终端上的无线通信模块(诸如包括单个或多个晶片的集成电路模块)。
[关于终端设备的应用示例]
图8是示出可以应用本公开内容的技术的智能电话2500的示意性配置的示例的框图。智能电话2500包括处理器2501、存储器2502、存储装置2503、外部连接接口2504、摄像装置2506、传感器2507、麦克风2508、输入装置2509、显示装置2510、扬声器2511、无线通信接口2512、一个或多个天线开关2515、一个或多个天线2516、总线2517、电池2518以及辅助控制器2519。
处理器2501可以为例如CPU或片上系统(SoC)，并且控制智能电话2500的应用层和另外层的功能。存储器2502包括RAM和ROM，并且存储数据和由处理器2501执行的程序。存储装置2503可以包括存储介质，诸如半导体存储器和硬盘。外部连接接口2504为用于将外部装置(诸如存储卡和通用串行总线(USB)装置)连接至智能电话2500的接口。
摄像装置2506包括图像传感器(诸如电荷耦合器件(CCD)和互补金属氧化物半导体(CMOS))，并且生成捕获图像。传感器2507可以包括一组传感器，诸如测量传感器、陀螺仪传感器、地磁传感器和加速度传感器。麦克风 2508将输入到智能电话2500的声音转换为音频信号。输入装置2509包括例如被配置为检测显示装置2510的屏幕上的触摸的触摸传感器、小键盘、键盘、按钮或开关，并且接收从用户输入的操作或信息。显示装置2510包括屏幕(诸如液晶显示器(LCD)和有机发光二极管(OLED)显示器)，并且显示智能电话2500的输出图像。扬声器2511将从智能电话2500输出的音频信号转换为声音。
无线通信接口2512支持任何蜂窝通信方案(诸如LTE和LTE-先进)，并且执行无线通信。无线通信接口2512通常可以包括例如基带(BB)处理器2513和射频(RF)电路2514。BB处理器2513可以执行例如编码/解码、调制/解调以及复用/解复用，并且执行用于无线通信的各种类型的信号处理。同时，RF电路2514可以包括例如混频器、滤波器和放大器，并且经由天线2516来传送和接收无线信号。无线通信接口2512可以为其上集成有BB处理器2513和RF电路2514的一个芯片模块。如图8所示，无线通信接口2512可以包括多个BB处理器2513和多个RF电路2514。虽然图8示出其中无线通信接口2512包括多个BB处理器2513和多个RF电路2514的示例，但是无线通信接口2512也可以包括单个BB处理器2513或单个RF电路2514。
此外，除了蜂窝通信方案之外，无线通信接口2512可以支持另外类型的无线通信方案，诸如短距离无线通信方案、近场通信方案和无线局域网(LAN)方案。在此情况下，无线通信接口2512可以包括针对每种无线通信方案的BB处理器2513和RF电路2514。
天线开关2515中的每一个在包括在无线通信接口2512中的多个电路(例如用于不同的无线通信方案的电路)之间切换天线2516的连接目的地。
天线2516中的每一个均包括单个或多个天线元件(诸如包括在MIMO天线中的多个天线元件)，并且用于无线通信接口2512传送和接收无线信号。如图8所示，智能电话2500可以包括多个天线2516。虽然图8示出其中智能电话2500包括多个天线2516的示例，但是智能电话2500也可以包括单个天线2516。
此外，智能电话2500可以包括针对每种无线通信方案的天线2516。在此情况下，天线开关2515可以从智能电话2500的配置中省略。
总线2517将处理器2501、存储器2502、存储装置2503、外部连接接口 2504、摄像装置2506、传感器2507、麦克风2508、输入装置2509、显示装置2510、扬声器2511、无线通信接口2512以及辅助控制器2519彼此连接。电池2518经由馈线向图8所示的智能电话2500的各个块提供电力，馈线在图中被部分地示为虚线。辅助控制器2519例如在睡眠模式下操作智能电话2500的最小必需功能。
在图8所示的智能电话2500中，根据本发明实施例的用户设备侧无线通信设备的收发装置可以由无线通信接口2512实现。根据本发明实施例的用户设备侧的电子装置或无线通信设备的处理电路和/或各单元的功能的至少一部分也可以由处理器2501或辅助控制器2519实现。例如，可以通过由辅助控制器2519执行处理器2501的部分功能而减少电池2518的电力消耗。此外，处理器2501或辅助控制器2519可以通过执行存储器2502或存储装置2503中存储的程序而执行根据本发明实施例的用户设备侧的电子装置或无线通信设备的处理电路和/或各单元的功能的至少一部分。
[关于基站的应用示例]
图9是示出可以应用本公开内容的技术的gNB的示意性配置的示例的框图。gNB 2300包括一个或多个天线2310以及基站设备2320。基站设备2320和每个天线2310可以经由射频(RF)线缆彼此连接。
天线2310中的每一个均包括单个或多个天线元件(诸如包括在多输入多输出(MIMO)天线中的多个天线元件)，并且用于基站设备2320发送和接收无线信号。如图9所示，gNB 2300可以包括多个天线2310。例如，多个天线2310可以与gNB 2300使用的多个频带兼容。虽然图9示出其中gNB 2300包括多个天线2310的示例，但是gNB 2300也可以包括单个天线2310。
基站设备2320包括控制器2321、存储器2322、网络接口2323以及无线通信接口2325。
控制器2321可以为例如CPU或DSP，并且操作基站设备2320的较高层的各种功能。例如，控制器2321根据由无线通信接口2325处理的信号中的数据来生成数据分组，并经由网络接口2323来传递所生成的分组。控制器2321可以对来自多个基带处理器的数据进行捆绑以生成捆绑分组，并传递所生成的捆绑分组。控制器2321可以具有执行如下控制的逻辑功能：该控制诸如为无 线资源控制、无线承载控制、移动性管理、接纳控制和调度。该控制可以结合附近的gNB或核心网节点来执行。存储器2322包括RAM和ROM，并且存储由控制器2321执行的程序和各种类型的控制数据(诸如终端列表、传输功率数据以及调度数据)。
网络接口2323为用于将基站设备2320连接至核心网2324的通信接口。控制器2321可以经由网络接口2323而与核心网节点或另外的gNB进行通信。在此情况下，gNB 2300与核心网节点或其他gNB可以通过逻辑接口(诸如S1接口和X2接口)而彼此连接。网络接口2323还可以为有线通信接口或用于无线回程线路的无线通信接口。如果网络接口2323为无线通信接口，则与由无线通信接口2325使用的频带相比，网络接口2323可以使用较高频带用于无线通信。
无线通信接口2325支持任何蜂窝通信方案(诸如长期演进(LTE)和LTE-先进)，并且经由天线2310来提供到位于gNB 2300的小区中的终端的无线连接。无线通信接口2325通常可以包括例如BB处理器2326和RF电路2327。BB处理器2326可以执行例如编码/解码、调制/解调以及复用/解复用，并且执行层(例如L1、介质访问控制(MAC)、无线链路控制(RLC)和分组数据汇聚协议(PDCP))的各种类型的信号处理。代替控制器2321，BB处理器2326可以具有上述逻辑功能的一部分或全部。BB处理器2326可以为存储通信控制程序的存储器，或者为包括被配置为执行程序的处理器和相关电路的模块。更新程序可以使BB处理器2326的功能改变。该模块可以为插入到基站设备2320的槽中的卡或刀片。可替代地，该模块也可以为安装在卡或刀片上的芯片。同时，RF电路2327可以包括例如混频器、滤波器和放大器，并且经由天线2310来传送和接收无线信号。
如图9所示，无线通信接口2325可以包括多个BB处理器2326。例如，多个BB处理器2326可以与gNB 2300使用的多个频带兼容。如图9所示，无线通信接口2325可以包括多个RF电路2327。例如，多个RF电路2327可以与多个天线元件兼容。虽然图9示出其中无线通信接口2325包括多个BB处理器2326和多个RF电路2327的示例，但是无线通信接口2325也可以包括单个BB处理器2326或单个RF电路2327。
在图9所示的gNB 2300中，根据本发明实施例的基站侧的无线通信设备 的收发装置可以由无线通信接口2325实现。根据本发明实施例的基站侧的电子装置或无线通信设备的处理电路和/或各单元的功能的至少一部分也可以由控制器2321实现。例如，控制器2321可以通过执行存储在存储器2322中的程序而执行根据本发明实施例的基站侧的电子装置或无线通信设备的处理电路和/或各单元的功能的至少一部分。
[关于汽车导航设备的应用示例]
图10是示出可以应用本公开内容的技术的汽车导航设备2120的示意性配置的示例的框图。汽车导航设备2120包括处理器2121、存储器2122、全球定位系统(GPS)模块2124、传感器2125、数据接口2126、内容播放器2127、存储介质接口2128、输入装置2129、显示装置2130、扬声器2131、无线通信接口2133、一个或多个天线开关2136、一个或多个天线2137以及电池2138。
处理器2121可以为例如CPU或SoC，并且控制汽车导航设备2120的导航功能和另外的功能。存储器2122包括RAM和ROM，并且存储数据和由处理器2121执行的程序。
GPS模块2124使用从GPS卫星接收的GPS信号来测量汽车导航设备2120的位置(诸如纬度、经度和高度)。传感器2125可以包括一组传感器，诸如陀螺仪传感器、地磁传感器和空气压力传感器。数据接口2126经由未示出的终端而连接到例如车载网络2141，并且获取由车辆生成的数据(诸如车速数据)。
内容播放器2127再现存储在存储介质(诸如CD和DVD)中的内容，该存储介质被插入到存储介质接口2128中。输入装置2129包括例如被配置为检测显示装置2130的屏幕上的触摸的触摸传感器、按钮或开关，并且接收从用户输入的操作或信息。显示装置2130包括诸如LCD或OLED显示器的屏幕，并且显示导航功能的图像或再现的内容。扬声器2131输出导航功能的声音或再现的内容。
无线通信接口2133支持任何蜂窝通信方案(诸如LTE和LTE-先进)，并且执行无线通信。无线通信接口2133通常可以包括例如BB处理器2134和RF电路2135。BB处理器2134可以执行例如编码/解码、调制/解调以及复用/解复用，并且执行用于无线通信的各种类型的信号处理。同时，RF电路2135可以包括例如混频器、滤波器和放大器，并且经由天线2137来传送和接收无 线信号。无线通信接口2133还可以为其上集成有BB处理器2134和RF电路2135的一个芯片模块。如图10所示，无线通信接口2133可以包括多个BB处理器2134和多个RF电路2135。虽然图10示出其中无线通信接口2133包括多个BB处理器2134和多个RF电路2135的示例，但是无线通信接口2133也可以包括单个BB处理器2134或单个RF电路2135。
此外，除了蜂窝通信方案之外，无线通信接口2133可以支持另外类型的无线通信方案，诸如短距离无线通信方案、近场通信方案和无线LAN方案。在此情况下，针对每种无线通信方案，无线通信接口2133可以包括BB处理器2134和RF电路2135。
天线开关2136中的每一个在包括在无线通信接口2133中的多个电路(诸如用于不同的无线通信方案的电路)之间切换天线2137的连接目的地。
天线2137中的每一个均包括单个或多个天线元件(诸如包括在MIMO天线中的多个天线元件)，并且用于无线通信接口2133传送和接收无线信号。如图10所示，汽车导航设备2120可以包括多个天线2137。虽然图10示出其中汽车导航设备2120包括多个天线2137的示例，但是汽车导航设备2120也可以包括单个天线2137。
此外，汽车导航设备2120可以包括针对每种无线通信方案的天线2137。在此情况下，天线开关2136可以从汽车导航设备2120的配置中省略。
电池2138经由馈线向图10所示的汽车导航设备2120的各个块提供电力，馈线在图中被部分地示为虚线。电池2138累积从车辆提供的电力。
在图10示出的汽车导航设备2120中，根据本发明实施例的无线通信设备的收发装置或收发单元可以由无线通信接口2133实现。根据本发明实施例的电子装置或无线通信设备的处理电路和/或各单元的功能的至少一部分也可以由处理器2121实现。
本公开内容的技术也可以被实现为包括汽车导航设备2120、车载网络2141以及车辆模块2142中的一个或多个块的车载系统(或车辆)2140。车辆模块2142生成车辆数据(诸如车速、发动机速度和故障信息)，并且将所生成的数据输出至车载网络2141。
在上面对本发明具体实施例的描述中，针对一种实施方式描述和/或示出 的特征可以用相同或类似的方式在一个或更多个其它实施方式中使用，与其它实施方式中的特征相组合，或替代其它实施方式中的特征。
应该强调，术语“包括/包含”在本文使用时指特征、要素、步骤或组件的存在，但并不排除一个或更多个其它特征、要素、步骤或组件的存在或附加。
在上述实施例和示例中，采用了数字组成的附图标记来表示各个步骤和/或单元。本领域的普通技术人员应理解，这些附图标记只是为了便于叙述和绘图，而并非表示其顺序或任何其他限定。
此外，本发明的方法不限于按照说明书中描述的时间顺序来执行，也可以按照其他的时间顺序地、并行地或独立地执行。因此，本说明书中描述的方法的执行顺序不对本发明的技术范围构成限制。
尽管上面已经通过对本发明的具体实施例的描述对本发明进行了披露，但是，应该理解，上述的所有实施例和示例均是示例性的，而非限制性的。本领域的技术人员可在所附权利要求的精神和范围内设计对本发明的各种修改、改进或者等同物。这些修改、改进或者等同物也应当被认为包括在本发明的保护范围内。
此外，本发明实施例还包括：
(1)一种用于无线通信的电子装置，其包括处理电路，所述处理电路被配置为：
进行控制以通过直通链路向目标用户设备发送数据以及与所述数据的重传有关的信息；以及
控制用于所述数据的重传的操作。
(2)根据(1)所述的电子装置，其中，所述信息包括所述数据的初传和重传的时间间隔；并且
所述操作包括根据所述时间间隔进行所述数据的重传。
(3)根据(1)所述的电子装置，其中，所述信息包括对所述数据的反馈的时域位置信息；并且
所述操作包括基于所述时域位置信息接收所述目标用户设备对所述数据的反馈信息，以及基于所述反馈信息进行所述数据的重传。
(4)根据(3)所述的电子装置，其中，所述信息还包括指示重传单位的信息；并且
所述操作包括以传输块或码块组为单位接收所述数据的反馈和进行所述数据的重传。
(5)根据(3)所述的电子装置，其中，所述时域位置信息包括：
用于接收反馈信息的一个或更多个时域位置；以及/或者
用于接收反馈信息的一个或更多个时间窗口。
(6)根据(5)所述的电子装置，其中，所述时域位置信息包括用于接收反馈信息的多个时域位置，并且所述操作包括：
相继在所述多个时域位置上接收反馈信息，直至接收到反馈信息；以及
若在所述多个时域位置上均未收到反馈信息，则执行重传。
(7)根据(5)所述的电子装置，其中，所述时域位置信息包括用于接收反馈信息的多个时间窗口，并且所述操作包括：
相继在所述多个时间窗口内接收反馈信息，直至接收到反馈信息；以及
若在所述多个时间窗口内均未收到反馈信息，则执行重传。
(8)根据(5)所述的电子装置，其中，所述时域位置信息包括用于接收反馈信息的时域位置和时间窗口，并且所述操作包括：
相继在所述时域位置上和所述时间窗口内接收反馈信息，直至接收到反馈信息；以及
若所述时域位置上和所述时间窗口内均未收到反馈信息，则执行重传。
(9)根据(1)所述的电子装置，其中，所述信息包括以下信息中的一项或更多项：
所述数据的业务优先级、资源预留、源用户设备标识、目标用户设备标识、初传和重传频域位置、初传和反馈传输频域位置、调制与编码方式、重传索引、以及码块组传输信息。
(10)根据(3)所述的电子装置，其中，所述操作还包括：
对所接收的反馈信息进行解码；以及
确定经解码的反馈信息是否是针对所述数据的反馈信息。
(11)根据(4)所述的电子装置，其中，所述操作包括以码块组为单位进行所述数据的反馈和重传，并且所述反馈信息包括码本信息。
(12)根据(3)所述的电子装置，其中，所述反馈信息包括与所述数据的重传资源有关的信息，并且
所述操作还包括根据与所述重传资源有关的信息来确定用于所述数据的重传资源。
(13)一种无线通信方法，包括：
通过直通链路向目标用户设备发送数据以及与所述数据的重传有关的信息；以及
进行用于所述数据的重传的操作。
(14)一种用于无线通信的电子装置，其包括处理电路，所述处理电路被配置为：
进行控制以通过直通链路从源用户设备接收数据以及与所述数据的重传有关的信息；以及
控制用于所述数据的重传的操作。
(15)根据(14)所述的电子装置，其中，所述信息包括所述数据的初传和重传的时间间隔；并且
所述操作包括根据所述时间间隔接收所述数据的重传。
(16)根据(14)所述的电子装置，其中，所述信息包括对所述数据的反馈的时域位置信息；并且
所述操作包括基于所述时域位置信息向所述源用户设备发送所述数据的反馈信息。
(17)根据(16)所述的电子装置，其中，所述信息还包括指示重传单位的信息；并且
所述操作包括以传输块或码块组为单位进行所述数据的反馈。
(18)根据(16)所述的电子装置，其中，所述时域位置信息包括用于发送反馈信息的一个或更多个时域位置和/或用于发送反馈信息的一个或更多个时间窗口；并且
所述操作包括在所述一个或更多个时域位置之一上或者在所述一个或更多个时间窗口之一内发送所述反馈信息。
(19)根据(16)所述的电子装置，其中，所述信息包括所述数据的业务优先级，并且
所述操作包括基于所述业务优先级进行：
所述反馈信息的发送与其他数据的接收；以及/或者
多个链路的所述反馈信息的发送。
(20)根据(19)所述的电子装置，其中，所述操作还包括：
在所述多个链路的数量超过预定阈值的情况下，根据所述优先级选择要发送所述反馈信息的链路。
(21)根据(19)所述的电子装置，其中，所述操作还包括通过以下方式区分所述多个链路的反馈信息：
在所述反馈信息中包含相应源用户设备的标识信息；以及/或者
利用码本对所述反馈信息进行加扰。
(22)根据(16)所述的电子装置，其中，所述操作还包括：
在所述反馈信息中包含与所述数据的重传资源有关的信息；以及
基于所述重传资源来接收所述数据的重传。
(23)一种无线通信方法，包括：
通过直通链路从源用户设备接收数据以及与所述数据的重传有关的信息；以及
进行用于所述数据的重传的操作。
(24)一种用于无线通信的电子装置，其包括处理电路，所述处理电路被配置为：
设置直通链路控制信息，所述直通链路控制信息用于指示与通过直通链路从源用户设备向目标用户设备进行的数据重传有关的信息；以及
进行控制以将所设置的直通链路控制信息通知给所述源用户设备，
其中，与所述数据重传有关的信息包括所述源用户设备对所述数据的初传和重传的时间间隔或所述目标用户设备对所述数据的反馈的时域位置信息。
(25)一种无线通信方法，包括：
设置直通链路控制信息，所述直通链路控制信息用于指示与通过直通链路从源用户设备向目标用户设备进行的数据重传有关的信息；以及
将所设置的直通链路控制信息通知给所述源用户设备，
其中，与所述数据重传有关的信息包括所述源用户设备对所述数据的初传和重传的时间间隔或目标用户设备对所述数据的反馈的时域位置信息。
(26)一种计算机可读介质，其包括可执行指令，当所述可执行指令被信息处理设备执行时，使得所述信息处理设备执行根据(13)、(23)和(25) 中任一项所述的方法。

Claims (26)

  1. 一种用于无线通信的电子装置，其包括处理电路，所述处理电路被配置为：
    进行控制以通过直通链路向目标用户设备发送数据以及与所述数据的重传有关的信息；以及
    控制用于所述数据的重传的操作。
  2. 根据权利要求1所述的电子装置，其中，所述信息包括所述数据的初传和重传的时间间隔；并且
    所述操作包括根据所述时间间隔进行所述数据的重传。
  3. 根据权利要求1所述的电子装置，其中，所述信息包括对所述数据的反馈的时域位置信息；并且
    所述操作包括基于所述时域位置信息接收所述目标用户设备对所述数据的反馈信息，以及基于所述反馈信息进行所述数据的重传。
  4. 根据权利要求3所述的电子装置，其中，所述信息还包括指示重传单位的信息；并且
    所述操作包括以传输块或码块组为单位接收所述数据的反馈和进行所述数据的重传。
  5. 根据权利要求3所述的电子装置，其中，所述时域位置信息包括：
    用于接收反馈信息的一个或更多个时域位置；以及/或者
    用于接收反馈信息的一个或更多个时间窗口。
  6. 根据权利要求5所述的电子装置，其中，所述时域位置信息包括用于接收反馈信息的多个时域位置，并且所述操作包括：
    相继在所述多个时域位置上接收反馈信息，直至接收到反馈信息；以及
    若在所述多个时域位置上均未收到反馈信息，则执行重传。
  7. 根据权利要求5所述的电子装置，其中，所述时域位置信息包括用于接收反馈信息的多个时间窗口，并且所述操作包括：
    相继在所述多个时间窗口内接收反馈信息，直至接收到反馈信息；以及
    若在所述多个时间窗口内均未收到反馈信息，则执行重传。
  8. 根据权利要求5所述的电子装置，其中，所述时域位置信息包括用于接收反馈信息的时域位置和时间窗口，并且所述操作包括：
    相继在所述时域位置上和所述时间窗口内接收反馈信息，直至接收到反馈信息；以及
    若所述时域位置上和所述时间窗口内均未收到反馈信息，则执行重传。
  9. 根据权利要求1所述的电子装置，其中，所述信息包括以下信息中的一项或更多项：
    所述数据的业务优先级、资源预留、源用户设备标识、目标用户设备标识、初传和重传频域位置、初传和反馈传输频域位置、调制与编码方式、重传索引、以及码块组传输信息。
  10. 根据权利要求3所述的电子装置，其中，所述操作还包括：
    对所接收的反馈信息进行解码；以及
    确定经解码的反馈信息是否是针对所述数据的反馈信息。
  11. 根据权利要求4所述的电子装置，其中，所述操作包括以码块组为单位进行所述数据的反馈和重传，并且所述反馈信息包括码本信息。
  12. 根据权利要求3所述的电子装置，其中，所述反馈信息包括与所述数据的重传资源有关的信息，并且
    所述操作还包括根据与所述重传资源有关的信息来确定用于所述数据的重传资源。
  13. 一种无线通信方法，包括：
    通过直通链路向目标用户设备发送数据以及与所述数据的重传有关的信息；以及
    进行用于所述数据的重传的操作。
  14. 一种用于无线通信的电子装置，其包括处理电路，所述处理电路被配置为：
    进行控制以通过直通链路从源用户设备接收数据以及与所述数据的重传有关的信息；以及
    控制用于所述数据的重传的操作。
  15. 根据权利要求14所述的电子装置，其中，所述信息包括所述数据的初传和重传的时间间隔；并且
    所述操作包括根据所述时间间隔接收所述数据的重传。
  16. 根据权利要求14所述的电子装置，其中，所述信息包括对所述数据的反馈的时域位置信息；并且
    所述操作包括基于所述时域位置信息向所述源用户设备发送所述数据的反馈信息。
  17. 根据权利要求16所述的电子装置，其中，所述信息还包括指示重传单位的信息；并且
    所述操作包括以传输块或码块组为单位进行所述数据的反馈。
  18. 根据权利要求16所述的电子装置，其中，所述时域位置信息包括用于发送反馈信息的一个或更多个时域位置和/或用于发送反馈信息的一个或更多个时间窗口；并且
    所述操作包括在所述一个或更多个时域位置之一上或者在所述一个或更多个时间窗口之一内发送所述反馈信息。
  19. 根据权利要求16所述的电子装置，其中，所述信息包括所述数据的业务优先级，并且
    所述操作包括基于所述业务优先级进行：
    所述反馈信息的发送与其他数据的接收；以及/或者
    多个链路的所述反馈信息的发送。
  20. 根据权利要求19所述的电子装置，其中，所述操作还包括：
    在所述多个链路的数量超过预定阈值的情况下，根据所述优先级选择要发送所述反馈信息的链路。
  21. 根据权利要求19所述的电子装置，其中，所述操作还包括通过以下方式区分所述多个链路的反馈信息：
    在所述反馈信息中包含相应源用户设备的标识信息；以及/或者
    利用码本对所述反馈信息进行加扰。
  22. 根据权利要求16所述的电子装置，其中，所述操作还包括：
    在所述反馈信息中包含与所述数据的重传资源有关的信息；以及
    基于所述重传资源来接收所述数据的重传。
  23. 一种无线通信方法，包括：
    通过直通链路从源用户设备接收数据以及与所述数据的重传有关的信息；以及
    进行用于所述数据的重传的操作。
  24. 一种用于无线通信的电子装置，其包括处理电路，所述处理电路被配置为：
    设置直通链路控制信息，所述直通链路控制信息用于指示与通过直通链路从源用户设备向目标用户设备进行的数据重传有关的信息；以及
    进行控制以将所设置的直通链路控制信息通知给所述源用户设备，
    其中，与所述数据重传有关的信息包括所述源用户设备对所述数据的初传 和重传的时间间隔或所述目标用户设备对所述数据的反馈的时域位置信息。
  25. 一种无线通信方法，包括：
    设置直通链路控制信息，所述直通链路控制信息用于指示与通过直通链路从源用户设备向目标用户设备进行的数据重传有关的信息；以及
    将所设置的直通链路控制信息通知给所述源用户设备，
    其中，与所述数据重传有关的信息包括所述源用户设备对所述数据的初传和重传的时间间隔或目标用户设备对所述数据的反馈的时域位置信息。
  26. 一种计算机可读介质，其包括可执行指令，当所述可执行指令被信息处理设备执行时，使得所述信息处理设备执行根据权利要求13、23和25中任一项所述的方法。
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