WO2021088926A1 - 数据传输方法、设备及介质 - Google Patents

数据传输方法、设备及介质 Download PDF

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Publication number
WO2021088926A1
WO2021088926A1 PCT/CN2020/126765 CN2020126765W WO2021088926A1 WO 2021088926 A1 WO2021088926 A1 WO 2021088926A1 CN 2020126765 W CN2020126765 W CN 2020126765W WO 2021088926 A1 WO2021088926 A1 WO 2021088926A1
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Prior art keywords
information
feedback
terminal device
service
harq
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PCT/CN2020/126765
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English (en)
French (fr)
Inventor
鲍炜
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维沃移动通信有限公司
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Priority to BR112022007810A priority Critical patent/BR112022007810A2/pt
Priority to KR1020227016757A priority patent/KR20220085808A/ko
Priority to EP20884190.8A priority patent/EP4057540A4/en
Publication of WO2021088926A1 publication Critical patent/WO2021088926A1/zh
Priority to US17/728,057 priority patent/US20220247517A1/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1861—Physical mapping arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1621—Group acknowledgement, i.e. the acknowledgement message defining a range of identifiers, e.g. of sequence numbers
    • 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
    • H04L1/1825—Adaptation of specific ARQ protocol parameters according to transmission conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1858—Transmission or retransmission of more than one copy of acknowledgement message
    • 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
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/04—Error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
    • 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
    • H04L1/1835—Buffer management
    • H04L1/1838—Buffer management for semi-reliable protocols, e.g. for less sensitive applications such as streaming video

Definitions

  • the embodiments of the present disclosure relate to the field of communication technology, and in particular, to a data transmission method, device, and medium.
  • Both the Long Term Evolution (LTE) system and the New Radio (NR) system can support sidelinks.
  • Sidelink can be used to directly transmit data between terminal devices without using network devices, such as vehicle to everything (V2X) communication.
  • V2X vehicle to everything
  • LTE sidelink is mainly based on broadcast services and does not have a Hybrid Automatic Repeat Request (HARQ) feedback mechanism, which makes data transmission quality and data transmission efficiency low.
  • HARQ Hybrid Automatic Repeat Request
  • the NR sidelink introduces the HARQ feedback mechanism, the configured feedback type is relatively single, resulting in low feedback efficiency, and thus low data transmission quality and data transmission efficiency.
  • the embodiments of the present disclosure provide a data transmission method, device, and medium to solve the problem of low data transmission quality and data transmission efficiency in related technologies.
  • embodiments of the present disclosure provide a data transmission method, which is applied to a sending terminal device, including:
  • the HARQ feedback type configuration information is configured according to the service information of the service, and the service information includes the service quality (Quality of Service, QoS) parameters of the service and/or the group information to which the service belongs;
  • QoS Quality of Service
  • the data packet is sent to the receiving terminal device.
  • the embodiments of the present disclosure provide a data transmission method, which is applied to a network device, and includes:
  • the embodiments of the present disclosure provide a data transmission method, which is applied to a receiving terminal device, including:
  • Receive a data packet sent by a sending terminal device where the data packet includes feedback indication information corresponding to the data packet, the feedback indication information is generated by the sending terminal device according to the HARQ feedback type configuration information, and the HARQ feedback type configuration information is configured according to the service information of the service,
  • the service information includes the QoS parameters of the service and/or the group information to which the service belongs;
  • HARQ feedback is performed to the sending terminal device.
  • a sending terminal device including:
  • the feedback type determining module is used to determine the HARQ feedback type configuration information configured by the network device to which the terminal device belongs.
  • the HARQ feedback type configuration information is configured according to the service information of the service, and the service information includes the QoS parameters of the service and/or the service Group information to which they belong;
  • the service data sending module is used to send data packets to the receiving terminal device according to the HARQ feedback type configuration information.
  • embodiments of the present disclosure provide a network device, including:
  • the service information receiving module is configured to receive the service information sent by the sending terminal device, where the service information includes the QoS parameters of the service and/or the group information to which the service belongs;
  • the feedback type configuration module is used to configure the HARQ feedback type configuration information according to the service information
  • the feedback type sending module is used to send HARQ feedback type configuration information to the sending terminal device.
  • embodiments of the present disclosure provide a receiving terminal device, including:
  • the service data receiving module is used to receive the data packet sent by the sending terminal device, where the data packet includes feedback indication information corresponding to the data packet, and the feedback indication information is generated by the sending terminal device according to the HARQ feedback type configuration information, and the HARQ feedback type configuration information According to the service information configuration of the service, the service information includes the QoS parameters of the service and/or the group information to which the service belongs;
  • the receiving result feedback module is used to perform HARQ feedback to the sending terminal device according to the feedback indication information.
  • embodiments of the present disclosure provide a terminal device, including a processor, a memory, and a computer program stored in the memory and running on the processor.
  • the computer program is executed by the processor to implement the first aspect or The steps of the data transmission method described in the third aspect.
  • the embodiments of the present disclosure provide a network device, including a processor, a memory, and a computer program stored on the memory and running on the processor.
  • the computer program is executed by the processor, the implementation is as described in the second aspect. The steps of the data transfer method.
  • embodiments of the present disclosure provide a computer-readable storage medium, and a computer program is stored on the computer-readable storage medium.
  • the computer program is executed by a processor, the implementation is as described in the first, second, or third aspect. The steps of the data transfer method.
  • the HARQ feedback type configuration information of the sending terminal device can be determined based on the QoS parameters of the service in the service information and/or the group information to which the service belongs, and the HARQ feedback type configuration information can be sent to the receiving terminal device according to the HARQ feedback type configuration information.
  • the data packet realizes the flexible configuration of multiple feedback types of the HARQ mechanism using business information, improves the feedback efficiency in the data transmission process, and thereby improves the data transmission quality and data transmission efficiency.
  • FIG. 1 is a schematic flowchart of a data transmission method provided by an embodiment of the first aspect of the present disclosure
  • FIG. 2 is a schematic flowchart of a data transmission method provided by an embodiment of the second aspect of the present disclosure
  • FIG. 3 is a schematic flowchart of a data transmission method provided by an embodiment of the third aspect of the disclosure.
  • FIG. 4 is a schematic structural diagram of a transmitting terminal device provided by an embodiment of the fourth aspect of the present disclosure.
  • FIG. 5 is a schematic structural diagram of a network device provided by an embodiment of the fifth aspect of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a receiving terminal device provided by an embodiment of the sixth aspect of the disclosure.
  • FIG. 7 is a schematic diagram of the hardware structure of an example of a terminal device provided by an embodiment of the seventh aspect of the present disclosure.
  • the embodiments of the present disclosure provide a data transmission method, device, and medium, which can be applied to a scenario where a 5G NR sidelink is used for data transmission between a sending terminal device and a receiving terminal device without using a network device.
  • service information can be used to flexibly configure multiple feedback types of the HARQ mechanism. This avoids the low feedback efficiency under a single feedback type, thereby reducing the problem of data transmission quality and data transmission efficiency.
  • the sending terminal equipment and the receiving terminal equipment may both be user equipment (User Equipment, UE), or may be other terminal equipment, which is not limited herein.
  • the network equipment may be a base station or other network equipment, which is not limited here.
  • the following description is given by taking the sending terminal device as the sending end UE, the receiving terminal device as the receiving end UE, and the network device as the base station as examples.
  • Fig. 1 shows a schematic flowchart of a data transmission method provided by an embodiment of the first aspect of the present disclosure.
  • the data transmission method can be executed by a sending terminal device, such as a sending end UE.
  • the data transmission method may include:
  • S101 Determine the HARQ feedback type configuration information of the hybrid automatic repeat request of the sending terminal device, where the HARQ feedback type configuration information is configured according to the service information of the service, and the service information includes the service quality QoS parameters of the service and/or the group information to which the service belongs ;
  • S102 Send a data packet to the receiving terminal device according to the HARQ feedback type configuration information.
  • the HARQ feedback type configuration information of the sending terminal device can be determined based on the QoS parameters of the service in the service information and/or the group information to which the service belongs, and the HARQ feedback type configuration information can be sent to the receiving terminal device according to the HARQ feedback type configuration information.
  • the data packet realizes the flexible configuration of multiple feedback types of the HARQ mechanism using business information, improves the feedback efficiency in the data transmission process, and thereby improves the data transmission quality and data transmission efficiency.
  • the quality of service QoS parameter may include at least one of the following:
  • Service rate information For Service rate information, delay information, priority information, and block error rate information.
  • the group information may at least include the size of the group that the service needs to send, that is, the total number of terminal devices in the group.
  • the service information may be obtained from the V2X layer by the sending terminal device.
  • the current sidelink transmission mainly includes transmission forms such as broadcast, groupcast, and unicast. Among them, both unicast and multicast transmission forms support the physical layer HARQ feedback mechanism.
  • the HARQ feedback type configuration information configured according to the service information of the service may include any one of the following:
  • the receiving terminal device that successfully receives the data packet feeds back the confirmation ACK signal at the corresponding feedback position, and the receiving terminal device that fails to receive the data packet feeds back the NACK signal information at the corresponding feedback position.
  • the HARQ feedback type configuration information configured according to the service information of the service may include any one of the following:
  • the receiving terminal equipment in each group that successfully receives the data packet feeds back the ACK signal at the feedback position corresponding to the group, and the receiving terminal equipment in each group that fails to receive the data packet corresponds to the group.
  • the feedback position of the feedback NACK signal information is used to indicate the grouping feedback of receiving terminal equipment.
  • HARQ feedback only needs one feedback position. Therefore, when it is determined that HARQ feedback is required, only A HARQ feedback type configuration scheme: a receiving terminal device that fails to receive a data packet feeds back a negative acknowledgement NACK signal at the same feedback position.
  • HARQ feedback may require one or more feedback positions. Therefore, when it is determined that HARQ feedback is required, any of the above-mentioned HARQ feedback type configurations can be provided. Program.
  • the current Sidelink UE resource allocation modes are divided into two categories: base station scheduling mode (Mode 1) and UE autonomous mode (Mode 2). Among them, in Mode 1, the base station to which the UE belongs controls and allocates resources; in Mode 2, the UE independently selects resources.
  • determining the HARQ feedback type configuration information of the sending terminal device in S101 may include:
  • the sending-end UE when it needs to initiate a unicast service or a multicast service, if the sending-end UE is in the connected state, the sending-end UE can directly interact with the network equipment to which it belongs, namely the base station.
  • the sending end UE may send to the base station the QoS parameters of the service corresponding to the data packet to be sent and/or the group information to which the service belongs to request the base station to configure the HARQ feedback type configuration information for it.
  • the base station can be based on the QoS parameters, QoS parameters and group information, QoS parameters and the feedback resource configuration of the transmission resource pool, group information and feedback resource configuration, or QoS parameters, group information and feedback resource configuration, for the data to be sent
  • the HARQ feedback type configuration information of the package configuration The method for the base station to configure the HARQ feedback type configuration information will be described in detail below, and will not be repeated here.
  • the HARQ feedback type configuration information configured by the network device may also include transmission resource pool information so that the sending end UE can transmit The data packet is transmitted in the resource pool according to the HARQ feedback type configuration information.
  • the transmission resource pool information includes feedback resource configuration information, and the transmission resource pool corresponds to the HARQ feedback type in the HARQ feedback type configuration information.
  • the network device may not configure the corresponding transmission resource pool for the sending end UE, the HARQ feedback type configuration information configured by the network device does not include the transmission resource pool information, so that the sending end UE needs to be in the public In the transmission resource pool, a resource pool that satisfies the HARQ feedback type configuration information is selected for data packet transmission.
  • the specific method for determining the HARQ feedback type configuration information of the sending terminal device in S101 may include:
  • the HARQ feedback type configuration information corresponding to the service information is determined based on the mapping rule in the system message sent by the network device.
  • the system message sent by the network device is the system message sent by the network device that is accepted when the sending terminal device is in the connected state.
  • the transmitting UE may also determine the HARQ feedback type configuration information corresponding to the service information based on the pre-configured mapping rule.
  • the sending end UE can directly determine the HARQ feedback type configuration corresponding to the data packet to be sent based on the stored or pre-configured mapping rules and service information in the system message sent by the home network device information.
  • the data transmission method may further include:
  • the transmitting terminal device In the case that the feedback resource configuration of the common transmission resource pool does not meet the feedback requirement corresponding to the HARQ feedback type configuration information, it is determined whether the transmitting terminal device is allowed to switch from the non-connected state to the connected state.
  • the common transmission resource pool cannot provide transmission resources for the corresponding feedback position for the sender UE, that is, the feedback resource configuration of the common transmission resource pool does not satisfy the HARQ feedback type configuration information correspondence It needs to determine whether the sending end UE can be switched from the non-connected state to the connected state.
  • the sending end UE in a disconnected state its transmission position is generally obtained from the public transmission resource pool, and the public transmission resource pool is sent in the system message broadcast.
  • the public transmission resource pool in the network can be divided into the following categories:
  • the public transmission resource pool without feedback position can be used for data transmission without HARQ feedback
  • Each transmission location has a common transmission resource pool with a fixed feedback location, which can be used for HARQ feedback that requires a feedback location, where the feedback location and the transmission location are in a configuration or a standard-prescribed relationship, for example, the feedback location is the transmission location
  • the time domain position 1ms or 3ms after the final boundary, the frequency domain is derived from the transmission position;
  • Each transmission location has a common transmission resource pool with multiple feedback locations, which can be used for HARQ feedback that requires multiple feedback locations.
  • the feedback location and the transmission location are related to each other that is configured or specified by the standard, for example, the feedback location is the transmission location.
  • the time domain position 1ms or 3ms after the final boundary, and the frequency domain positions of multiple feedback positions are continuous, which are all deduced from the transmission position.
  • the sender UE When the sender UE is allowed to receive HARQ feedback from multiple feedback positions, the sender UE selects a common transmission resource pool that matches the number of receiving terminal devices in the group information from the common transmission resource pool for transmission, for example, the maximum feedback allowed by the common transmission resource The number of locations is greater than or equal to the number of receiving terminal devices. If there is no common transmission resource that meets the number of receiving terminal devices, for example, the maximum number of feedback positions allowed in all public transmission resources is less than the number of receiving terminal devices, you need to determine whether the transmitting UE can be switched from the non-connected state to the connected state .
  • the data transmission method may further include:
  • the sending terminal device If the feedback resource configuration does not meet the feedback requirement and the sending terminal device is allowed to switch from the non-connected state to the connected state, the sending terminal device is converted from the non-connected state to the connected state.
  • the HARQ feedback mode is multiple feedback, and the maximum number of feedback positions allowed by the common transmission resource pool is less than the number of receiving terminal devices in the group information, and at the same time, the HARQ feedback allows the transmitting terminal device to switch from a non-connected state to a connected state
  • the UE at the sending end can be converted from the unconnected state to the connected state.
  • the sending end UE may perform a radio resource control (Radio Resource Control, RRC) connection establishment, switch to a connected state, and request appropriate resources from the network device through dedicated signaling.
  • RRC Radio Resource Control
  • the sending UE when it needs to send a multicast service, it can first obtain the HARQ feedback mode allowed by the network side according to the mapping relationship between the QoS parameters of the service and the HARQ feedback mode.
  • mapping rule may include at least one of the following:
  • mapping relationship between standardized QoS parameters and the maximum number of HARQ feedback positions supported
  • the standardized QoS parameters are a group of QoS parameters with specific values defined in the standard, and each group of standardized QoS parameters has a standardized label, for example, QoS ID1-QoS ID8 is the corresponding standardized QoS parameter list value in the standard.
  • the system message can specify the mapping relationship between standardized QoS parameters and HARQ feedback requirements: QoS ID 1, 3, 4 do not require HARQ feedback, and other QoS IDs require HARQ feedback; or, system messages can specify standardized QoS parameters and multiple
  • the mapping relationship between the HARQ feedback requirements for each feedback position is: QoS ID 1, 3, and 4 do not require HARQ feedback, and other QoS IDs require HARQ feedback for multiple feedback positions.
  • the transmitting end UE determines the HARQ feedback for one location or the HARQ feedback for multiple feedback locations according to other conditions, or directly determines a location according to the mapping relationship
  • the HARQ feedback is also the HARQ feedback of multiple feedback positions, and the maximum number of supported HARQ feedback positions can also be determined according to the mapping relationship.
  • the sending end UE After the sending end UE determines the HARQ feedback mode according to the QoS parameters, if it is determined that HARQ feedback is not required, the sending end UE determines that the HARQ feedback type configuration information is that all receiving terminal devices do not feedback. If HARQ feedback is really not needed, the sending UE may also determine the HARQ feedback type configuration information according to at least one of the HARQ feedback mode, group information, the maximum number of feedback positions of the service, and the number of feedback positions of the input resource pool.
  • mapping rule may further include at least one of the following:
  • the HARQ feedback type configuration information is determined, where the group information mainly includes the total number of terminal devices in the group. For example, if there is no group information, the receiving terminal device is supported to perform HARQ feedback at the same feedback position; if there is group information, each receiving terminal device is supported to perform HARQ feedback at its corresponding feedback position, but it is not allowed to specify that it does not support multiple
  • the sender UE at a feedback position uses multiple feedback positions, that is, group information exists, but the service corresponding to the group information does not satisfy multiple feedback positions for HARQ feedback adjustment.
  • the HARQ feedback type configuration information configures a feedback If HARQ feedback is performed at a location, multiple feedback locations cannot be used for HARQ feedback;
  • the HARQ feedback type configuration information according to the number of receiving terminal devices in the group information and the maximum number of feedback positions of the service; for example, if the number of receiving terminal devices in the group information is less than or equal to the maximum number of feedback resources for the service, each receiving terminal is supported The device performs HARQ feedback at its corresponding feedback position; if the number of receiving terminal devices in the group information is greater than the maximum number of feedback resources for the service, the receiving terminal device is supported for group feedback, that is, each group of receiving terminal devices is in the feedback position corresponding to the group Perform HARQ feedback;
  • the HARQ feedback type configuration information according to the number of receiving terminal devices in the group information, the maximum number of feedback positions of the service, and the number of feedback positions of the transmission resource pool; for example, if the number of receiving terminal devices in the group information is less than or equal to the maximum feedback of the service The number of resources and the number of receiving terminal devices in the group information is less than or equal to the number of feedback positions in the transmission resource pool, and the resource is determined to be appropriate to support each receiving terminal device for HARQ feedback at its corresponding feedback position; if the receiving terminal device in the group information The number is less than or equal to the maximum number of feedback resources for the service and the number of receiving terminal devices in the group information is greater than the number of feedback positions in the transmission resource pool.
  • the receiving terminal devices are grouped according to the number of feedback positions to support each group of receiving terminal devices in The feedback position corresponding to the group performs HARQ feedback. Specifically, if the service can support no more than 10 feedback positions, and the number of receiving terminal devices is exactly 10, then the number of feedback positions in the transmission resource pool is 10, then the resource is considered appropriate; otherwise, if the number of feedback positions in the transmission resource pool is less than 10, the resource is considered inappropriate, and the HARQ feedback type configuration information corresponding to the 10 feedback positions of the 10 receiving end UEs cannot be selected, or if the number of feedback positions in the transmission resource pool is 5, then 10 can be received at this time.
  • the end UE is divided into 5 groups for feedback.
  • sending a data packet to the receiving terminal device according to the HARQ feedback type configuration information in S102 may include:
  • the feedback indication information may include at least one of the following:
  • HARQ feedback requirement indication information HARQ feedback requirement indication information, feedback resource configuration information, HARQ feedback requirement indication information for multiple feedback positions, number of feedback positions information, group feedback parameter information, and group feedback signal type information.
  • the UE at the transmitting end may select an appropriate feedback type and transmission resource according to the HARQ feedback type configuration information, and perform data transmission.
  • the receiving UE can obtain the group information to which the service corresponding to the data packet belongs from the higher-level V2X layer.
  • the group information may include the total number of terminal devices in the group and the identity (Identity, ID) of the receiving end UE in the group.
  • the receiving UE is not enough to know which of the following feedback types will be used for the data packet to be received: no HARQ feedback, HARQ feedback, HARQ feedback at one feedback location, and HARQ feedback at multiple feedback locations , HARQ feedback of group feedback, etc. Therefore, the sending end UE needs to notify the receiving end UE of specific feedback indication information when sending a data packet, and the feedback indication information may specifically include the following content:
  • HARQ feedback requirement indication information used to inform the receiving end UE whether HARQ feedback is required
  • the feedback resource configuration information is used to inform the receiving end UE of the feedback position of HARQ feedback, for example, 1ms after the last time of reception, or 3ms after the HARQ feedback, or specific feedback frequency domain position information, etc.;
  • the HARQ feedback requirement indication information of multiple feedback positions is used to inform the receiving end whether the UE needs multiple feedback. If the HARQ feedback requirement indication information of multiple feedback positions is only 1 bit, then the HARQ feedback of multiple feedback positions can only be based on The total number of well-known terminal devices in the group to which the service belongs, and each receiving end UE is assigned a feedback position for HARQ feedback;
  • the number of feedback positions is used to inform the receiving end UE of the number of multiple feedback positions. If the number of feedback positions is displayed as a number, then further group feedback is allowed for the receiving end UEs in the group to which the service belongs, for example, group There are a total of 20 receiving end UEs, but there are only 5 feedback positions, and group feedback is required;
  • Grouping feedback parameters used to inform the receiving end UE of the grouping feedback parameters, such as group feedback based on the receiving end UE ID in the group, or group feedback based on the distance between the receiving end UE and the sending end UE in the group, etc.;
  • the type of the packet feedback signal used to inform the receiving end UE in the packet feedback whether to feed back the NACK signal only when the data packet reception fails, or it can feed back the ACK signal when the data packet reception fails and the NACK signal when the data packet reception fails .
  • the data transmission method may further include:
  • the sending terminal device may determine its maximum number of transmissions for a data packet based on the maximum number of HARQ transmissions.
  • sending a data packet to the receiving terminal device in S102 may include:
  • the data packet including the maximum HARQ transmission frequency indication information is sent to the receiving terminal device, where the maximum HARQ transmission frequency indication information is used to indicate whether the current transmission frequency is the maximum HARQ transmission frequency.
  • HARQ feedback is to accurately retransmit according to the ACK signal and/or the NACK signal, so as to achieve the purpose of improving the transmission success rate and reducing resource consumption.
  • HARQ retransmission is required to achieve the purpose of enabling the receiving end UE to receive the data correctly.
  • retransmissions cannot be performed indefinitely, and a maximum number of times is required.
  • the maximum number of HARQ retransmissions is generally related to the QoS parameters of the service. For example, services with higher block error rate requirements generally require more retransmissions. The more retransmissions, the more resource consumption and the longer the delay. Therefore, priority and delay requirements need to be considered at the same time to determine The maximum number of HARQ transmissions that can make data transmission less resource consumption, less time delay, and higher transmission success rate.
  • each time the transmitting terminal device sends a data packet it will determine whether the current transmission times of the data packet is the maximum HARQ transmission times of the service corresponding to the data packet, and generate the maximum HARQ transmission times indication information according to the judgment result, to The receiving terminal device can determine whether the current number of transmissions is the maximum number of HARQ transmissions based on the maximum HARQ transmission number indication information.
  • the sending terminal device when it sends a data packet for the first time, it may send a data packet including indication information of the maximum number of HARQ transmissions to the receiving end UE.
  • the transmitting terminal device when the transmitting terminal device receives the NACK signal fed back by the receiving end UE and the current number of transmissions is not the maximum number of HARQ transmissions, it may send data including the indication information of the maximum number of HARQ transmissions to the receiving end UE that has fed back the NACK signal. package.
  • determining the maximum number of HARQ transmissions for a service may include:
  • the transmitting end UE in the connected state can report the QoS parameters to the network equipment to which it belongs, namely the base station, and obtain the configuration of the maximum HARQ transmission times from the base station value.
  • the network device When the network device configures the HARQ feedback request indication information for the service, and the sending terminal device has already sent QoS parameters to the network device, the network device can directly use the QoS parameters sent by the sending terminal device without the sending terminal device sending the QoS parameters again .
  • the maximum number of HARQ transmissions determined as a service may include:
  • the maximum number of HARQ transmission times corresponding to the service is determined based on the mapping relationship between the QoS parameter and the transmission parameter in the system message sent by the network device.
  • the Idle/inactive sender UE can obtain the data to be sent through the mapping relationship between the QoS parameters and the transmission parameters in the system message sent by the network device to which it belongs.
  • the configuration value of the maximum HARQ transmission times corresponding to the QoS parameter of the service corresponding to the packet the off-network sender UE can obtain the configuration value of the maximum HARQ transmission frequency through the mapping relationship between the QoS parameter and the transmission parameter in a pre-configured manner.
  • the maximum HARQ transmission times can be used as the upper limit to send a data packet multiple times.
  • the sending end UE suspends the HARQ retransmission in advance, for example, a higher priority service occupies the resource, or the transmission delay of the service has almost exceeded the requirement, or the current resource pool is relatively congested. These situations can cause the UE at the sending end to terminate the retransmission early before reaching the maximum number of retransmissions.
  • FIG. 2 shows a schematic flowchart of a data transmission method provided by an embodiment of the second aspect of the present disclosure.
  • the data transmission method can be executed by a network device, such as a base station.
  • the data transmission method may include:
  • S201 Receive service information sent by a sending terminal device, where the service information includes QoS parameters of the service and/or group information to which the service belongs;
  • S203 Send HARQ feedback type configuration information to the sending terminal device.
  • the HARQ feedback type configuration information of the sending terminal device can be determined based on the QoS parameters of the service in the service information and/or the group information to which the service belongs, and the HARQ feedback type configuration information can be sent to the receiving terminal device according to the HARQ feedback type configuration information.
  • the data packet realizes the flexible configuration of multiple feedback types of the HARQ mechanism using business information, improves the feedback efficiency in the data transmission process, and thereby improves the data transmission quality and data transmission efficiency.
  • the QoS parameters may include at least one of the following:
  • Service rate information For Service rate information, delay information, priority information, and block error rate information.
  • the group information may at least include the size of the group that the service needs to send, that is, the total number of terminal devices in the group.
  • the HARQ feedback type configuration information may include information used to instruct all receiving terminal devices not to perform feedback;
  • the configured HARQ feedback type configuration information may include any of the following:
  • the receiving terminal equipment in each group that successfully receives the data packet feeds back the ACK signal at the feedback position corresponding to the group, and the receiving terminal equipment in each group that fails to receive the data packet corresponds to the group.
  • the feedback position of the feedback NACK signal information is used to indicate the grouping feedback of receiving terminal equipment.
  • the receiving terminal device that fails to receive the data packet feeds back a negative acknowledgement NACK signal at the same feedback position, which is the HARQ feedback of one feedback position, and the other HARQ feedback type configuration information is the HARQ feedback of multiple feedback positions.
  • the sender UE does not obtain the service group information from the V2X layer, that is, the sender UE only knows that this is a multicast service, but the total number of terminal devices in the group and the ID of the terminal devices in the group are not clear, and there is no information about the group.
  • the group information is reported to the base station, at this time, only one HARQ feedback position can be selected;
  • the reporting service information of the sending end UE includes group information, and the group information includes at least the total number of terminal devices in the group, HARQ feedback at multiple feedback positions can be selected;
  • the HARQ feedback type configuration information will be configured as follows: the receiving terminal device that successfully receives the data packet is The corresponding feedback position feedback acknowledgement ACK signal, the receiving terminal device that fails to receive the data packet feeds back the NACK signal at the corresponding feedback position, so that each receiving end UE has a special feedback position for more accurate feedback. Once there is one or Several receiving end UEs fail to receive, that is, NACK signals are fed back, and the retransmission can be focused on them.
  • group feedback is a compromise method, and the effect and overhead are both between the feedback of all receiving end UEs at one feedback position and the feedback of each receiving end UE at their respective feedback positions.
  • grouping methods can be used to group the receiving end UEs:
  • the feedback position selection for grouped feedback is performed according to the ID of the terminal equipment in the group. For example, there are a total of 40 receiving end UEs in the group, and there are 4 feedback positions, then the receiving end UE with ID sequence 1-10 (for example, ID 0-9) Use feedback position 1, the receiving end UE with ID order 11-20 (for example, ID 10-19) use feedback position 2, and so on; or each receiving end UE uses its own ID to perform modulo 4 operation, and the result is 0 Use feedback position 1 if the result is 1, use feedback position 2 if the result is 1, use feedback position 3 if the result is 2, and use feedback position 4 if the result is 3;
  • the feedback position selection for group feedback is performed according to the distance from the sending end UE.
  • the communication distance of this service is 100 meters, and there are 4 feedback positions, then the receiving end UE within the range of 0-25 meters from the sending end UE uses feedback Position 1, the receiving end UE within 25-50 meters from the transmitting end UE uses feedback position 2, and the receiving end UE within 50-75 meters away from the transmitting end UE uses feedback position 3, and the transmitting end UE 75-100
  • the receiving end UE within the range of meters uses feedback position 4; or adopts other algorithms of non-equal distance to determine the way of grouping by distance.
  • the way of grouping by distance can be specified in the standard or in the configuration signaling
  • the specific content and label of the grouping method are specified in the standard, and the label is notified to the receiving end UE in the configuration signaling or dynamic signaling;
  • the feedback position selection for group feedback is performed according to the received signal strength, for example, the received signal strength is within a certain range is divided into a group of receiving end UEs, and the feedback is performed at the common position of the group.
  • the base station After the base station has performed the aforementioned decision-making process, it needs to send specific HARQ feedback type configuration information to the sending end UE.
  • the data transmission method may further include:
  • sending HARQ feedback type configuration information to the sending terminal device may include:
  • the base station can also carry corresponding resources to the sending end UE, for example, send a transmission resource pool corresponding to the feedback type to the sending end UE through RRC signaling, for the sending end UE to select appropriate resources in the transmission resource pool Perform data transfer.
  • FIG. 3 shows a schematic flowchart of a data transmission method provided by an embodiment of the third aspect of the present disclosure.
  • the data transmission method can be executed by a receiving terminal device, such as a receiving end UE.
  • the data transmission method may include:
  • S301 Receive a data packet sent by a sending terminal device, where the data packet includes feedback indication information corresponding to the data packet, the feedback indication information is generated by the sending terminal device according to HARQ feedback type configuration information, and the HARQ feedback type configuration information is based on service information Configuration, service information includes QoS parameters of the service and/or group information to which the service belongs;
  • S302 Perform HARQ feedback to the sending terminal device according to the feedback indication information.
  • the HARQ feedback type configuration information of the sending terminal device can be determined based on the QoS parameters of the service in the service information and/or the group information to which the service belongs, and the HARQ feedback type configuration information can be sent to the receiving terminal device according to the HARQ feedback type configuration information.
  • the data packet realizes the flexible configuration of multiple feedback types of HARQ mechanism using service information, and enables the receiving terminal device to perform HARQ feedback according to the feedback indication information generated based on the HARQ feedback type configuration information, which improves the feedback during the data transmission process Efficiency, thereby improving data transmission quality and data transmission efficiency.
  • the feedback indication information may include at least one of the following:
  • HARQ feedback requirement indication information HARQ feedback requirement indication information, feedback resource configuration information, HARQ feedback requirement indication information for multiple feedback positions, number of feedback positions information, group feedback parameter information, and group feedback signal type information.
  • the receiving end UE When the receiving end UE is receiving data, it can obtain feedback indication information, so as to perform feedback in a correct manner. For example, if the feedback indication information indicates that no feedback is required, the receiving end UE only receives data; if the feedback indication information needs to be fed back and the feedback is performed at a feedback position, the receiving end UE will feed back NACK at the feedback position when the data packet reception fails Signal; If the feedback indication information needs to be fed back and the respective feedback position of each receiving end UE is fed back, the receiving end UE finds the corresponding feedback position according to its own ID, and feeds back an ACK signal or a NACK signal according to whether the reception is successful or not; if The feedback indication information needs to be fed back and the receiving end UE performs group feedback, then the receiving end UE will feed back the NACK signal at its corresponding feedback position according to the grouping mode notified by the grouping feedback parameter, according to the case of the data packet acceptance failure, or, The ACK signal is fed back when the data packet is received successfully and the
  • the data packet further includes maximum HARQ transmission times indication information, the maximum HARQ transmission times indication information is used to indicate whether the current number of retransmissions is equal to the maximum HARQ transmission times of the service corresponding to the data packet, and the maximum HARQ transmission times are based on QoS parameter configuration of the service.
  • the data transmission method may further include:
  • the receiving end UE cannot accurately obtain the QoS parameters of the service before it successfully decodes the data, and cannot know the maximum number of HARQ transmissions. Secondly, even in the unicast situation, the sending end UE can use the RRC signaling. The maximum number of HARQ transmissions on the link is configured for the receiving end UE. Because the sending end UE may also terminate the retransmission attempt early. Based on the above reasons, the receiving end UE is not clear about the HARQ retransmission attempt behavior, so after feeding back the NACK signal, The HARQ process can only be kept waiting for possible retransmissions by the sender UE, because the total number of HARQ processes is limited, and other services cannot be received once they are occupied. Therefore, unnecessary waiting for retransmission of the HARQ process needs to be avoided.
  • the sending end UE when it sends a data packet, it may include whether the data packet is the maximum HARQ transmission number of the last transmission attempt, that is, indicating whether the current transmission number is the maximum HARQ transmission number.
  • the indication information of the maximum HARQ transmission times is carried in the control information, and the success rate of receiving the control information is higher than that of the data.
  • the received control information such as Sidelink control indicator (SCI)
  • SCI Sidelink control indicator
  • the data transmission method of the embodiments of the present disclosure can enable sidelink to efficiently support HARQ feedback, and can select or configure different HARQ feedback types according to different situations, so as to better perform HARQ feedback and data retransmission.
  • resource overhead can be reduced at the same time, thereby improving the overall data transmission efficiency and user experience.
  • Fig. 4 shows a schematic structural diagram of a transmitting terminal device provided by an embodiment of the fifth aspect of the present disclosure.
  • the sending terminal device 400 is, for example, a sending end UE, and as shown in FIG. 4, the sending terminal device 400 may include:
  • the feedback type determining module 401 is configured to determine the HARQ feedback type configuration information of the sending terminal device, where the HARQ feedback type configuration information is configured according to the service information of the service, and the service information includes the QoS parameters of the service and/or the group information to which the service belongs;
  • the service data sending module 402 is configured to send data packets to the receiving terminal device according to the HARQ feedback type configuration information.
  • the HARQ feedback type configuration information of the sending terminal device can be determined based on the QoS parameters of the service in the service information and/or the group information to which the service belongs, and the HARQ feedback type configuration information can be sent to the receiving terminal device according to the HARQ feedback type configuration information.
  • Sending data packets realizes the flexible configuration of multiple feedback types of HARQ mechanism using business information, improves the feedback efficiency in the data transmission process, and thus improves the data transmission quality and data transmission efficiency.
  • the quality of service QoS parameter may include at least one of the following:
  • Service rate information For Service rate information, delay information, priority information, and block error rate information.
  • the group information may at least include the size of the group that the service needs to send, that is, the total number of terminal devices in the group.
  • the HARQ feedback type configuration information may include any of the following:
  • the receiving terminal equipment in each group that successfully receives the data packet feeds back the ACK signal at the feedback position corresponding to the group, and the receiving terminal equipment in each group that fails to receive the data packet corresponds to the group.
  • the feedback position of the feedback NACK signal information is used to indicate the grouping feedback of receiving terminal equipment.
  • the feedback type determining module 401 may include:
  • the service information sending unit is used to send service information to the network device when the sending terminal device is in a connected state;
  • the feedback type receiving unit is configured to receive HARQ feedback type configuration information configured by the network device.
  • the sending UE when it needs to initiate a unicast service or a multicast service, if the sending UE is in a connected state, the sending UE can directly interact with the base station, and the sending UE can communicate with the base station.
  • the QoS parameters of the service corresponding to the data packet to be sent and/or the group information to which the service belongs are sent to request the base station to configure the HARQ feedback type configuration information for it.
  • the HARQ feedback type configuration information received by the feedback type receiving unit further includes transmission resource pool information, and the transmission resource pool information includes feedback resource configuration information, wherein the transmission resource pool corresponds to the HARQ feedback type.
  • the HARQ feedback type configuration information configured by the network device for the service may also include transmission resource pool information, so that the sending UE can follow the HARQ feedback type in the transmission resource pool.
  • the configuration information is used for the transmission of data packets.
  • the feedback type determining module 401 may include:
  • the feedback type matching unit is used to determine the HARQ feedback type configuration information corresponding to the service information based on the mapping rule in the system message sent by the network device when the sending terminal device is in a disconnected state.
  • the sending UE when it needs to initiate a unicast service or a multicast service, if the sending UE is in a disconnected state, that is, the sending UE is an Idle/inactive sending UE, then the sending UE does not need to When interacting with the base station, the sending UE can directly determine the HARQ feedback type configuration information corresponding to the data packet to be sent based on the stored or pre-configured mapping rules and service information in the system message.
  • the sending terminal device 400 may further include:
  • the state transition determination module is used to determine whether the sending terminal device is allowed to transition from the non-connected state to the connected state when the feedback resource configuration of the common transmission resource pool does not meet the feedback requirements corresponding to the HARQ feedback type configuration information.
  • the common transmission resource pool cannot provide transmission resources for the corresponding feedback position for the sender UE, that is, the feedback resource configuration of the common transmission resource pool does not satisfy the HARQ feedback type configuration information correspondence It needs to determine whether the sending end UE can be switched from the non-connected state to the connected state.
  • the sending terminal device 400 may further include:
  • the state transition execution module is used for converting the transmitting terminal device from the non-connected state to the connected state if the feedback resource configuration does not meet the feedback requirement and the transmitting terminal device is allowed to change from the non-connected state to the connected state.
  • the HARQ feedback mode is multiple feedback, and the maximum number of feedback positions allowed by the common transmission resource pool is less than the number of receiving terminal devices in the group information, and at the same time, the HARQ feedback allows the transmitting terminal device to switch from a non-connected state to a connected state
  • the UE at the sending end can be converted from the unconnected state to the connected state.
  • the sender UE may be allowed to establish an RRC connection, switch to a connected state, and request appropriate resources from the network device through dedicated signaling.
  • the mapping rule may include at least one of the following:
  • mapping relationship between standardized QoS parameters and the maximum number of HARQ feedback positions supported
  • mapping rule may further include at least one of the following:
  • the group information determine the HARQ feedback type configuration information
  • the HARQ feedback type configuration information is determined.
  • the service data sending module 402 may include:
  • An indication information generating unit configured to generate feedback indication information according to the HARQ feedback type configuration information
  • the first data sending unit is configured to send a data packet carrying feedback indication information to the receiving terminal device.
  • the sending end UE when it needs to send a data packet, it can directly inform the receiving end UE how to perform feedback through the feedback indication information.
  • the feedback indication information may include at least one of the following:
  • HARQ feedback requirement indication information HARQ feedback requirement indication information, feedback resource configuration information, HARQ feedback requirement indication information for multiple feedback positions, number of feedback positions information, group feedback parameter information, and group feedback signal type information.
  • the sending terminal device 400 may further include:
  • the transmission times determination module is used to determine the maximum HARQ transmission times of the service.
  • the service data sending module 402 may include:
  • the second data sending unit is configured to send a data packet including maximum HARQ transmission times indication information to the receiving terminal device, where the maximum HARQ transmission times indication information is used to indicate whether the current transmission times are the maximum HARQ transmission times.
  • each time the transmitting terminal device sends a data packet it will determine whether the current transmission times of the data packet is the maximum HARQ transmission times, and generate the maximum HARQ transmission times indication information according to the judgment result, so that the receiving terminal device can be based on the maximum HARQ transmission times.
  • the HARQ transmission times indication information determines whether the current transmission times is the maximum HARQ transmission times.
  • the transmission number determining module may include:
  • the demand parameter sending unit is used to send the QoS parameters of the service to the network device when the sending terminal device is in the connected state;
  • the transmission times receiving unit is configured to receive the maximum HARQ transmission times configured by the network device.
  • the transmitting end UE in the connected state can report the QoS parameters to the base station, and obtain the configuration value of the maximum HARQ transmission times from the base station.
  • the transmission number determining module may include:
  • the transmission times matching unit is used to determine the maximum HARQ transmission times corresponding to the service based on the mapping relationship between the QoS parameters and the transmission parameters in the system message sent by the network device when the sending terminal device is in a disconnected state.
  • the maximum number of HARQ transmission times corresponding to the service is determined based on the mapping relationship between the QoS parameter and the transmission parameter in the system message sent by the network device.
  • the sending terminal device provided in the embodiment of the present disclosure implements the various processes implemented by the terminal device in the method embodiment in FIG. 1. To avoid repetition, details are not described herein again.
  • Fig. 5 shows a schematic structural diagram of a network device provided by an embodiment of the fifth aspect of the present disclosure.
  • the network device 500 may be, for example, a base station, and as shown in FIG. 5, the network device 500 may include:
  • the service information receiving module 501 is configured to receive service information sent by a sending terminal device, where the service information includes QoS parameters of the service and/or group information to which the service belongs;
  • the feedback type configuration module 502 is configured to configure HARQ feedback type configuration information according to service information
  • the feedback type sending module 503 is configured to send HARQ feedback type configuration information to the sending terminal device.
  • the HARQ feedback type configuration information of the sending terminal device can be determined based on the QoS parameters of the service in the service information and/or the group information to which the service belongs, and the HARQ feedback type configuration information can be sent to the receiving terminal device according to the HARQ feedback type configuration information.
  • the data packet realizes the flexible configuration of multiple feedback types of the HARQ mechanism using business information, improves the feedback efficiency in the data transmission process, and thereby improves the data transmission quality and data transmission efficiency.
  • the QoS parameters may include at least one of the following:
  • Service rate information For Service rate information, delay information, priority information, and block error rate information.
  • the group information may at least include the size of the group that the service needs to send, that is, the total number of terminal devices in the group.
  • the network device 500 may further include:
  • the resource information determining module is used to determine the transmission resource pool information corresponding to the determined HARQ feedback type, and the transmission resource pool information includes feedback resource configuration information;
  • the feedback type sending module 503 may be specifically configured to send HARQ feedback type configuration information including transmission resource pool information to the sending terminal device.
  • the network device provided by the embodiment of the present disclosure implements the various processes implemented by the terminal device in the method embodiment of FIG. 2. To avoid repetition, details are not described herein again.
  • Fig. 6 shows a schematic structural diagram of a receiving terminal device provided by an embodiment of the sixth aspect of the present disclosure.
  • the receiving terminal device 600 may be, for example, a receiving end UE, and as shown in FIG. 6, the receiving terminal device 600 may include:
  • the service data receiving module 601 is used to receive a data packet sent by a sending terminal device, where the data packet includes feedback indication information corresponding to the data packet, and the feedback indication information is generated by the sending terminal device according to the HARQ feedback type configuration information, and the HARQ feedback type configuration
  • the information is configured according to the service information of the service, and the service information includes the QoS parameters of the service and/or the group information to which the service belongs;
  • the receiving result feedback module 602 is configured to perform HARQ feedback to the sending terminal device according to the feedback indication information.
  • the HARQ feedback type configuration information of the sending terminal device can be determined based on the QoS parameters of the service in the service information and/or the group information to which the service belongs, and the HARQ feedback type configuration information can be sent to the receiving terminal device according to the HARQ feedback type configuration information.
  • the data packet realizes the flexible configuration of multiple feedback types of the HARQ mechanism using business information, improves the feedback efficiency in the data transmission process, and thereby improves the data transmission quality and data transmission efficiency.
  • the data packet may also include maximum HARQ transmission times indication information.
  • the maximum HARQ transmission times indication information is used to indicate whether the current number of retransmissions is equal to the maximum HARQ transmission times of the service corresponding to the data packet, and the maximum HARQ transmission times Configure according to the QoS parameters of the business.
  • the receiving terminal device 600 further includes:
  • the waiting transmission determination module is used to wait for the sending terminal device to resend the data packet when the data packet reception fails and the maximum HARQ transmission times indication information indicates that the current transmission times are not equal to the maximum HARQ transmission times; when the data packet reception fails and the maximum HARQ transmission times The transmission times indication information indicates that when the current transmission times are equal to the maximum HARQ transmission times, stop waiting to send the terminal device to re-send the data packet.
  • the sending end UE when it sends a data packet, it can carry the indication information of whether the data packet is the maximum HARQ transmission number of the last transmission attempt, that is, indicating whether the current transmission number is the maximum HARQ transmission number.
  • the indication information of the maximum HARQ transmission times is carried in the control information, and the success rate of receiving the control information is higher than that of the data.
  • the received control information such as in the SCI
  • the receiving end UE indicates that this is not the last retransmission
  • the receiving end UE if the receiving end UE does not receive successfully, it will continue to wait. If it indicates that this is the last retransmission, And if the receiving end UE does not receive successfully, it will give up waiting and release the HARQ process.
  • the receiving terminal device provided by the embodiment of the present disclosure implements the various processes implemented by the terminal device in the method embodiment of FIG. 3, and in order to avoid repetition, details are not described herein again.
  • the embodiments of the present disclosure further provide a terminal device, including a processor, a memory, and a computer program stored in the memory and capable of running on the processor.
  • a terminal device including a processor, a memory, and a computer program stored in the memory and capable of running on the processor.
  • the computer program is executed by the processor, the above-mentioned first aspect of the present disclosure is realized by
  • Each process of the embodiment of the data transmission method executed by the sending terminal device or the process of the embodiment of the data transmission method executed by the receiving terminal device of the third aspect of the present disclosure can achieve the same technical effect. In order to avoid repetition, I won't repeat it here.
  • FIG. 7 is a schematic diagram of the hardware structure of an example of a terminal device provided by the seventh aspect of the disclosure.
  • the terminal device 700 may be, for example, a sending terminal device or a receiving terminal device, which is not limited here.
  • the terminal device 700 includes but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, and a memory 709 , Processor 710, and power supply 711 and other components.
  • a radio frequency unit 701 a radio frequency unit 701
  • a network module 702 an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, and a memory 709 , Processor 710, and power supply 711 and other components.
  • the structure of the terminal device shown in FIG. 7 does not constitute a limitation on the terminal device, and the terminal device may include more or fewer components than those shown in the figure, or a combination of certain components, or different components. Layout.
  • terminal devices include, but are not limited to, mobile phones, tablet computers, notebook computers, palmtop computers, vehicle-mounted terminals, wearable devices,
  • the processor 710 is the control center of the terminal device. It uses various interfaces and lines to connect the various parts of the entire terminal device, runs or executes software programs and/or modules stored in the memory 709, and calls data stored in the memory 709. , Perform various functions of the terminal equipment and process data, so as to monitor the terminal equipment as a whole.
  • the processor 710 may include one or more processing units; optionally, the processor 710 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface, application programs, etc., and the modem
  • the adjustment processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 710.
  • the memory 709 can be used to store software programs and various data.
  • the memory 709 may mainly include a program storage area and a data storage area.
  • the program storage area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data created by the use of mobile phones (such as audio data, phone book, etc.), etc.
  • the memory 709 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
  • the processor 710 may run a software program stored in the memory 709 to implement the operation of the above-mentioned data transmission method.
  • the processor 710 may be used to:
  • the HARQ feedback type configuration information is configured according to the service information of the service, and the service information includes the service quality QoS parameters of the service and/or the group information to which the service belongs; HARQ feedback type configuration information, sending data packets to the receiving terminal device;
  • the feedback indication information is generated by the sending terminal device according to the HARQ feedback type configuration information, and the HARQ feedback type configuration information is based on the service of the service.
  • Information configuration the service information includes the QoS parameters of the service and/or the group information to which the service belongs; and the HARQ feedback is performed to the sending terminal device according to the feedback indication information.
  • the HARQ feedback type configuration information of the sending terminal device can be determined based on the QoS parameters of the service in the service information and/or the group information to which the service belongs, and the HARQ feedback type configuration information can be sent to the receiving terminal device according to the HARQ feedback type configuration information.
  • the data packet realizes the flexible configuration of multiple feedback types of the HARQ mechanism using business information, improves the feedback efficiency in the data transmission process, and thereby improves the data transmission quality and data transmission efficiency.
  • the radio frequency unit 701 can be used for receiving and sending signals in the process of sending and receiving information or talking. Specifically, after receiving the downlink data from the base station, it is processed by the processor 710; Uplink data is sent to the base station.
  • the radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the radio frequency unit 701 can also communicate with the network and other devices through a wireless communication system.
  • the terminal device provides users with wireless broadband Internet access through the network module 702, such as helping users to send and receive emails, browse web pages, and access streaming media.
  • the audio output unit 703 may convert the audio data received by the radio frequency unit 701 or the network module 702 or stored in the memory 709 into an audio signal and output it as sound. Moreover, the audio output unit 703 may also provide audio output related to a specific function performed by the terminal device 700 (for example, call signal reception sound, message reception sound, etc.).
  • the audio output unit 703 includes a speaker, a buzzer, a receiver, and the like.
  • the input unit 704 is used to receive audio or video signals.
  • the input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042.
  • the graphics processor 7041 is used for the image of a still picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode.
  • the data is processed.
  • the processed image frame may be displayed on the display unit 706.
  • the image frame processed by the graphics processor 7041 may be stored in the memory 709 (or other storage medium) or sent via the radio frequency unit 701 or the network module 702.
  • the microphone 7042 can receive sound, and can process such sound into audio data.
  • the processed audio data can be converted into a format that can be sent to the mobile communication base station via the radio frequency unit 701 for output in the case of a telephone call mode.
  • the terminal device 700 further includes at least one sensor 705, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor includes an ambient light sensor and a proximity sensor.
  • the ambient light sensor can adjust the brightness of the display panel 7061 according to the brightness of the ambient light.
  • the proximity sensor can turn off the display panel 7061 and the display panel 7061 when the terminal device 700 is moved to the ear. / Or backlight.
  • the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three-axis), and can detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of the terminal device (such as horizontal and vertical screen switching, related games) , Magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tap), etc.; sensor 705 can also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, Infrared sensors, etc., will not be repeated here.
  • the display unit 706 is used to display information input by the user or information provided to the user.
  • the display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc.
  • LCD liquid crystal display
  • OLED organic light-emitting diode
  • the user input unit 707 can be used to receive inputted numeric or character information, and generate key signal input related to user settings and function control of the terminal device.
  • the user input unit 707 includes a touch panel 7071 and other input devices 7072.
  • the touch panel 7071 also known as the touch screen, can collect the user's touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch panel 7071 or near the touch panel 7071. operating).
  • the touch panel 7071 may include two parts: a touch detection device and a touch controller.
  • the touch detection device detects the user's touch position, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 710, the command sent by the processor 710 is received and executed.
  • the touch panel 7071 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave.
  • the user input unit 707 may also include other input devices 7072.
  • other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackball, mouse, and joystick, which will not be repeated here.
  • the touch panel 7071 can be overlaid on the display panel 7061.
  • the touch panel 7071 detects a touch operation on or near it, it is transmitted to the processor 710 to determine the type of the touch event, and then the processor 710 determines the type of the touch event according to the touch.
  • the type of event provides corresponding visual output on the display panel 7061.
  • the touch panel 7071 and the display panel 7061 are used as two independent components to implement the input and output functions of the terminal device, in some embodiments, the touch panel 7071 and the display panel 7061 can be integrated
  • the implementation of the input and output functions of the terminal device is not specifically limited here.
  • the interface unit 708 is an interface for connecting an external device and the terminal device 700.
  • the external device may include a wired or wireless headset port, an external power source (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (I/O) port, video I/O port, headphone port, etc.
  • the interface unit 708 can be used to receive input (for example, data information, power, etc.) from an external device and transmit the received input to one or more elements in the terminal device 700 or can be used to connect to the terminal device 700 and an external device. Transfer data between devices.
  • the terminal device 700 may also include a power source 711 (such as a battery) for supplying power to various components.
  • a power source 711 such as a battery
  • the power source 711 may be logically connected to the processor 710 through a power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions.
  • the terminal device 700 includes some functional modules not shown, which will not be repeated here.
  • the embodiments of the present disclosure also provide a network device, including a processor, a memory, and a computer program stored on the memory and running on the processor.
  • the computer program is executed by the processor, the second aspect of the present disclosure is realized by the network device.
  • Each process of the implemented data transmission method embodiment can achieve the same technical effect. In order to avoid repetition, it will not be repeated here.
  • the embodiments of the present disclosure also provide a computer-readable storage medium, and a computer program is stored on the computer-readable storage medium.
  • a computer program is stored on the computer-readable storage medium.
  • the computer program is executed by a processor, each process of the above-mentioned data transmission method embodiment is realized, and the same technology can be achieved. The effect, in order to avoid repetition, will not be repeated here.
  • the computer-readable storage medium include non-transitory computer-readable storage media, such as read-only memory (Read-Only Memory, ROM for short), Random Access Memory (RAM for short), and magnetic CD or CD, etc.
  • Such a processor can be, but is not limited to, a general-purpose processor, a dedicated processor, a special application processor, or a field programmable logic circuit. It can also be understood that each block in the block diagram and/or flowchart and the combination of the blocks in the block diagram and/or flowchart can also be implemented by dedicated hardware that performs specified functions or actions, or can be implemented by dedicated hardware and A combination of computer instructions.

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Abstract

本发明提供一种数据传输方法、设备及介质。其中，数据传输方法包括：确定发送终端设备的混合自动重传请求HARQ反馈类型配置信息，其中，HARQ反馈类型配置信息根据业务的业务信息进行配置，业务信息包括业务的服务质量QoS参数和/或业务所属的组信息；根据HARQ反馈类型配置信息，向接收终端设备发送数据包。

Description

数据传输方法、设备及介质
相关申请的交叉引用
本申请主张在2019年11月06日在中国提交的中国专利申请号201911078540.0的优先权，其全部内容通过引用包含于此。
技术领域
本公开实施例涉及通信技术领域，尤其涉及一种数据传输方法、设备及介质。
背景技术
长期演进(Long Term Evolution，LTE)系统和新空口(New Radio，NR)系统均可以支持副链路(sidelink)。Sidelink可以用于终端设备之间不通过网络设备而直接进行数据传输，例如车联网(vehicle to everything，V2X)通信等。
但是，LTE sidelink以广播业务为主，不具有混合自动重传请求(Hybrid Automatic Repeat Request，HARQ)反馈机制，使得数据传输质量和数据传输效率较低。而NR sidelink虽然引入了HARQ反馈机制，但是所配置的反馈类型比较单一，导致反馈效率较低，从而使数据传输质量和数据传输效率较低。
发明内容
本公开实施例提供一种数据传输方法、设备及介质，以解决相关技术中数据传输质量和数据传输效率较低的问题。
为此，第一方面，本公开实施例提供了一种数据传输方法，应用于发送终端设备，包括：
确定发送终端设备的HARQ反馈类型配置信息，其中，HARQ反馈类 型配置信息根据业务的业务信息进行配置，业务信息包括业务的服务质量(Quality of Service，QoS)参数和/或业务所属的组信息；
根据HARQ反馈类型配置信息，向接收终端设备发送数据包。
第二方面，本公开实施例提供了一种数据传输方法，应用于网络设备，包括：
接收发送终端设备发送的业务信息，其中，业务信息包括业务的QoS参数和/或业务所属的组信息；
根据业务信息，配置HARQ反馈类型配置信息；
向发送终端设备发送HARQ反馈类型配置信息。
第三方面，本公开实施例提供了一种数据传输方法，应用于接收终端设备，包括：
接收发送终端设备所发送的数据包，其中，数据包包括数据包对应的反馈指示信息，反馈指示信息由发送终端设备根据HARQ反馈类型配置信息生成，HARQ反馈类型配置信息根据业务的业务信息配置，业务信息包括业务的QoS参数和/或业务所属的组信息；
根据反馈指示信息，向发送终端设备进行HARQ反馈。
第四方面，本公开实施例提供了一种发送终端设备，包括：
反馈类型确定模块，用于确定发送终端设备所归属的网络设备配置的HARQ反馈类型配置信息，其中，HARQ反馈类型配置信息根据业务的业务信息进行配置，业务信息包括业务的QoS参数和/或业务所属的组信息；
业务数据发送模块，用于根据HARQ反馈类型配置信息，向接收终端设备发送数据包。
第五方面，本公开实施例提供了一种网络设备，包括：
业务信息接收模块，用于接收发送终端设备发送的业务信息，其中，业务信息包括业务的QoS参数和/或业务所属的组信息；
反馈类型配置模块，用于根据业务信息，配置HARQ反馈类型配置信息；
反馈类型发送模块，用于向发送终端设备发送HARQ反馈类型配置信 息。
第六方面，本公开实施例提供了一种接收终端设备，包括：
业务数据接收模块，用于接收发送终端设备所发送的数据包，其中，数据包包括数据包对应的反馈指示信息，反馈指示信息由发送终端设备根据HARQ反馈类型配置信息生成，HARQ反馈类型配置信息根据业务的业务信息配置，业务信息包括业务的QoS参数和/或业务所属的组信息；
接收结果反馈模块，用于根据反馈指示信息，向发送终端设备进行HARQ反馈。
第七方面，本公开实施例提供了一种终端设备，包括处理器、存储器及存储在存储器上并可在处理器上运行的计算机程序，计算机程序被处理器执行时实现如第一方面或者如第三方面所述的数据传输方法的步骤。
第八方面，本公开实施例提供了一种网络设备，包括处理器、存储器及存储在存储器上并可在处理器上运行的计算机程序，计算机程序被处理器执行时实现如第二方面所述的数据传输方法的步骤。
第九方面，本公开实施例提供了一种计算机可读存储介质，计算机可读存储介质上存储计算机程序，计算机程序被处理器执行时实现如第一方面、第二方面或者第三方面所述的数据传输方法的步骤。
在本公开实施例中，能够基于业务信息中的业务的QoS参数和/或业务所属的组信息，确定发送终端设备的HARQ反馈类型配置信息，并根据HARQ反馈类型配置信息，向接收终端设备发送数据包，实现了利用业务信息对HARQ机制的多种反馈类型的灵活配置，提高了数据传输过程中的反馈效率，从而提高了数据传输质量和数据传输效率。
附图说明
从下面结合附图对本公开的具体实施方式的描述中可以更好地理解本公开其中，相同或相似的附图标记表示相同或相似的特征。
图1为本公开第一方面实施例提供的数据传输方法的流程示意图；
图2为本公开第二方面实施例提供的数据传输方法的流程示意图；
图3为本公开第三方面实施例提供的数据传输方法的流程示意图；
图4为本公开第四方面实施例提供的发送终端设备的结构示意图；
图5为本公开第五方面实施例提供的网络设备的结构示意图；
图6为本公开第六方面实施例提供的接收终端设备的结构示意图；
图7为本公开第七方面实施例提供的终端设备的示例的硬件结构示意图。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
本公开实施例提供一种数据传输方法、设备及介质，可应用于发送终端设备与接收终端设备之间基于5G NR sidelink不通过网络设备进行数据传输的场景中。采用本公开实施例的数据传输方法，能够利用业务信息对HARQ机制的多种反馈类型进行灵活配置。从而避免了在单一反馈类型下，反馈效率较低，从而降低了数据传输质量和数据传输效率的问题。其中，发送终端设备和接收终端设备可以均为用户终端(User Equipment，UE)，也可为其他终端设备，在此并不限定。网络设备可以为基站，也可以为其它网络设备，在此并不限定。为了便于说明，下面以发送终端设备为发送端UE、接收终端设备为接收端UE以及网络设备为基站为例进行说明。
图1示出了本公开第一方面实施例提供的数据传输方法的流程示意图。如图1所示，该数据传输方法可以由发送终端设备执行，如发送端UE执行。具体地，该数据传输方法可以包括：
S101：确定发送终端设备的混合自动重传请求HARQ反馈类型配置信息，其中，HARQ反馈类型配置信息根据业务的业务信息进行配置，业务信息包括业务的服务质量QoS参数和/或业务所属的组信息；
S102：根据HARQ反馈类型配置信息，向接收终端设备发送数据包。
在本公开实施例中，能够基于业务信息中的业务的QoS参数和/或业务所属的组信息，确定发送终端设备的HARQ反馈类型配置信息，并根据HARQ反馈类型配置信息，向接收终端设备发送数据包，实现了利用业务信息对HARQ机制的多种反馈类型的灵活配置，提高了数据传输过程中的反馈效率，从而提高了数据传输质量和数据传输效率。
在本公开一些实施例中，服务质量QoS参数至少可以包括下列中的一项：
业务速率信息、时延信息、优先级信息以及误块率信息。
在本公开一些实施例中，组信息至少可以包括业务所需要发送的组的大小，即组内终端设备总数。
在本公开一些实施例中，业务信息可以由发送终端设备从V2X层(layer)获取。
目前的sidelink传输主要包括广播(broadcast)、组播(groupcast)和单播(unicast)等传输形式。其中，单播和组播两种传输形式均支持物理层HARQ反馈机制。
因此，下面将针对单播和组播两种传输形式对本公开实施例的数据传输方法进行详细说明。
在本公开一些实施例中，根据业务的业务信息所配置的HARQ反馈类型配置信息可以包括下列中的任一项：
用于指示所有接收终端设备不进行反馈的信息；
用于指示数据包接收失败的接收终端设备在同一个反馈位置反馈否定确认NACK信号的信息；
用于指示数据包接收成功的接收终端设备在与其对应的反馈位置反馈确认ACK信号，数据包接收失败的接收终端设备在与其对应的反馈位置反馈NACK信号的信息。
由于传输资源池的反馈位置数量也会限制HARQ反馈所能够利用的反馈位置。因此，在本公开另一些实施例中，根据业务的业务信息所配置的HARQ反馈类型配置信息可以包括下列中的任一项：
用于指示所有接收终端设备不进行反馈的信息；
用于指示数据包接收失败的接收终端设备在同一个反馈位置反馈否定确认NACK信号的信息；
用于指示数据包接收成功的接收终端设备在与其对应的反馈位置反馈确认ACK信号，数据包接收失败的接收终端设备在与其对应的反馈位置反馈NACK信号的信息；
用于指示接收终端设备分组反馈，每组中的数据包接收失败的接收终端设备在与该组对应的反馈位置反馈NACK信号的信息；
用于指示接收终端设备分组反馈，每组中的数据包接收成功的接收终端设备在与该组对应的反馈位置反馈ACK信号，每组中的数据包接收失败的接收终端设备在与该组对应的反馈位置反馈NACK信号的信息。
其中，各项HARQ反馈类型配置信息的具体确定方法将在下文详细描述，在此不做赘述。
需要说明的是，在单播传输方式中，由于只有一个接收端UE，因此，在单播传输方式中，HARQ反馈仅需要一个反馈位置，因此，在确定需要进行HARQ反馈的情况下，仅具有一种HARQ反馈类型配置方案：数据包接收失败的接收终端设备在同一个反馈位置反馈否定确认NACK信号。而在组播传输方式中，由于由多个接收端UE，HARQ反馈可能需要一个或多个反馈位置，因此，在确定需要进行HARQ反馈的情况下，可以具有上述的任一种HARQ反馈类型配置方案。
目前的Sidelink UE的资源分配模式分为两类：基站调度模式(Mode 1)和UE自主模式(Mode 2)。其中，在Mode 1下，由UE所属的基站控制并为其分配资源；在Mode 2下，由UE自主选择资源。
下面，将根据两种不同的资源分配模式，分别说明发送端UE如何确定其所归属的基站为待发送的数据包对应的业务所配置的HARQ反馈类型配置信息。
一、在Mode 1下
在本公开一些实施例中，S101中的确定发送终端设备的HARQ反馈类型配置信息，可以包括：
在发送终端设备处于连接态的情况下，向网络设备发送业务信息；
接收网络设备配置的HARQ反馈类型配置信息。
对于一个发送端UE而言，当它需要发起一个单播业务或者组播业务时，如果该发送端UE处于连接态，则该发送端UE可以直接与所归属的网络设备即基站进行交互，该发送端UE可以向基站发送待发送的数据包对应的业务的QoS参数和/或业务所属的组信息，以请求基站为其配置HARQ反馈类型配置信息。具体地，基站可以基于QoS参数、QoS参数和组信息、QoS参数和传输资源池的反馈资源配置、组信息和反馈资源配置，或者，QoS参数、组信息和反馈资源配置，为待发送的数据包配置的HARQ反馈类型配置信息。基站配置HARQ反馈类型配置信息的方法将在下文详细描述，在此不做赘述。
在本公开一些实施例中，如果网络设备同时为发送端UE配置了对应的传输资源池，则网络设备配置的HARQ反馈类型配置信息还可以包括传输资源池信息，使得发送端UE可以在该传输资源池中按照HARQ反馈类型配置信息进行数据包的传输。其中，传输资源池信息包括反馈资源配置信息，传输资源池与HARQ反馈类型配置信息中的HARQ反馈类型相对应。
在本公开另一些实施例中，如果网络设备还可以不为发送端UE配置对应的传输资源池，则网络设备配置的HARQ反馈类型配置信息不包括传输资源池信息，使得发送端UE需要在公共传输资源池中选择满足HARQ反馈类型配置信息的资源池进行数据包的传输。
二、在Mode 2下
在本公开另一些实施例中，S101中的确定发送终端设备的HARQ反馈类型配置信息的具体方法可以包括：
在发送终端设备处于非连接态的情况下，基于网络设备所发送的系统消息中的映射规则，确定业务信息对应的HARQ反馈类型配置信息。
其中，网络设备所发送的系统消息为在发送终端设备处于连接态的情况下所接受的、网络设备所发送的系统消息。
在这些实施例中，发送端UE还可以基于预配置的映射规则，确定业务信息对应的HARQ反馈类型配置信息。
对于一个发送端UE而言，当它需要发起一个单播业务或者组播业务时，如果该发送端UE处于非连接态，即发送的UE为Idle/inactive发送端UE，则该发送端UE无需与基站进行交互，该发送端UE可以直接基于所存储的所归属的网络设备发送的系统消息中的或者预配置的映射规则以及业务信息，来自行决定待发送的数据包对应的HARQ反馈类型配置信息。
在本公开一些实施例中，在基于网络设备所发送的系统消息中的映射规则确定业务信息对应的HARQ反馈类型配置信息之后，该数据传输方法还可以包括：
在公共传输资源池的反馈资源配置不满足HARQ反馈类型配置信息对应的反馈需求的情况下，确定是否允许发送终端设备由非连接态转换为连接态。
例如在需要多个反馈位置进行HARQ反馈的情况下，如果公共传输资源池不能为发送端UE提供相应的反馈位置的传输资源，即公共传输资源池的反馈资源配置不满足HARQ反馈类型配置信息对应的反馈需求，需要确定是否能够使发送端UE由非连接态切换为连接态。
在本公开实施例中，对于非连接态的发送端UE，一般从公共传输资源池来获得自己的传输位置，公共传输资源池为系统消息广播中发送的。
例如，网络中的公共传输资源池可以分为以下几类：
没有反馈位置的公共传输资源池，可以用于无需HARQ反馈的情况下，进行数据传输；
每个传输位置具有一个固定的反馈位置的公共传输资源池，可以用于需要一个反馈位置的HARQ反馈，其中，反馈位置与传输位置是配置好或者标准规定的相互关系，例如反馈位置为传输位置最后边界之后1ms或者3ms的时域位置，频域由传输位置推导出；
每个传输位置具有多个反馈位置的公共传输资源池，可以用于需要多个反馈位置的HARQ反馈，其中，反馈位置与传输位置是配置好或者标准规定的相互关系，例如反馈位置为传输位置最后边界之后1ms或者3ms的时域位置，多个反馈位置的频域位置连续，均由传输位置推导出。
当发送端UE被允许多个反馈位置的HARQ反馈时，发送端UE在公 共传输资源池中选择符合组信息中的接收终端设备数量的公共传输资源池进行传输，例如公共传输资源允许的最大反馈位置数量大于或等于接收终端设备数量。如果找不到符合接收终端设备数量的公共传输资源，例如所有公共传输资源中允许的最大反馈位置数量均小于接收终端设备数量，则需要确定是否能够使发送端UE由非连接态切换为连接态。
在本公开另一些实施例中，在确定是否允许发送终端设备由非连接态转换为连接态之后，该数据传输方法还可以包括：
若反馈资源配置不满足反馈需求且允许发送终端设备由非连接态转换为连接态，将发送终端设备由非连接态转换为连接态。
具体地，若HARQ反馈方式为多个反馈，并且公共传输资源池所允许的最大反馈位置数量小于组信息中的接收终端设备数量，同时HARQ反馈允许发送终端设备由非连接态转换为连接态，可以使发送端UE由非连接态转换为连接态。例如，可以使发送端UE进行无线资源控制(Radio Resource Control，RRC)连接建立，转入连接态，以专用信令向网络设备请求合适的资源。
在本公开一些实施例中，当发送端UE需要发送一个组播业务时，可以首先根据该业务的QoS参数与HARQ反馈方式的映射关系，获得网络侧允许的HARQ反馈方式。
在这些实施例中，映射规则可以包括下列中的至少一项：
标准化QoS参数与HARQ反馈需求之间的映射关系；
标准化QoS参数与多个反馈位置的HARQ反馈需求之间的映射关系；
标准化QoS参数与所支持的HARQ反馈的最大反馈位置数量之间的映射关系；
满足预定条件的一个或者多个QoS参数与HARQ反馈需求之间的映射关系；
满足预定条件的一个或者多个QoS参数与多个反馈位置的HARQ反馈需求之间的映射关系；
满足预定条件的一个或者多个QoS参数与所支持的HARQ反馈的最 大反馈位置数量之间的映射关系。
其中，标准化QoS参数为标准中定义的一组特定取值的QoS参数，每组标准化QoS参数有一个标准化的标号，例如QoS ID1-QoS ID8为在标准中对应标准化的QoS参数列表值。那么系统消息中可以规定标准化QoS参数与HARQ反馈需求之间的映射关系为：QoS ID1，3，4不需要HARQ反馈，其它QoS ID需要HARQ反馈；或者，系统消息中可以规定标准化QoS参数与多个反馈位置的HARQ反馈需求之间的映射关系为：QoS ID1，3，4不需要HARQ反馈，其它QoS ID需要多个反馈位置的HARQ反馈。
由此，可以根据映射关系只进行有是否需要HARQ反馈的配置区分，并且由发送端UE根据其它条件决定一个位置的HARQ反馈还是多个反馈位置的HARQ反馈，也可以根据映射关系直接决定一个位置的HARQ反馈还是多个反馈位置的HARQ反馈，还可以根据映射关系决定所支持的HARQ反馈的最大反馈位置数量等。从而能够提高配置HARQ反馈方式的灵活性。
当发送端UE根据QoS参数，决定了HARQ反馈方式之后，如果确定不需要进行HARQ反馈，则发送端UE确定HARQ反馈类型配置信息为所有接收终端设备不进行反馈。如果确不需要进行HARQ反馈，则发送端UE还可以根据HARQ反馈方式、组信息、业务的最大反馈位置数量和输资源池的反馈位置数量中的至少一项，确定HARQ反馈类型配置信息。
在本公开另一些实施例中，映射规则还可以包括下列中的至少一项：
根据组信息，确定HARQ反馈类型配置信息，其中，组信息主要包括组内终端设备总数。例如，若不存在组信息，支持接收终端设备在同一个反馈位置进行HARQ反馈；若存在组信息，支持每个接收终端设备在与其对应的反馈位置进行HARQ反馈，但不允许明确规定不支持多个反馈位置的发送端UE，使用多个反馈位置，即：存在组信息，但是该组信息对应的业务不满足多个反馈位置进行HARQ反馈的调节，例如HARQ反馈类型配置信息配置的是一个反馈位置进行HARQ反馈，则不能使用多个反馈位置进行HARQ反馈；
根据组信息中的接收终端设备数量和业务的最大反馈位置数量，确定HARQ反馈类型配置信息；例如，若组信息中的接收终端设备数量小于或等于业务的最大反馈资源数量，支持每个接收终端设备在与其对应的反馈位置进行HARQ反馈；若组信息中的接收终端设备数量大于业务的最大反馈资源数量，支持接收终端设备进行分组反馈，即每组接收终端设备在与该组对应的反馈位置进行HARQ反馈；
根据组信息中的接收终端设备数量和传输资源池的反馈位置数量，确定HARQ反馈类型配置信息；
根据组信息中的接收终端设备数量、业务的最大反馈位置数量和传输资源池的反馈位置数量，确定HARQ反馈类型配置信息；例如，若组信息中的接收终端设备数量小于或等于业务的最大反馈资源数量且组信息中的接收终端设备数量小于或等于传输资源池的反馈位置数量，确定资源合适，支持每个接收终端设备在与其对应的反馈位置进行HARQ反馈；若组信息中的接收终端设备数量小于或等于业务的最大反馈资源数量且组信息中的接收终端设备数量大于传输资源池的反馈位置数量，确定资源不合适，将接收终端设备按照反馈位置数量分组，支持每组接收终端设备在与该组对应的反馈位置进行HARQ反馈。具体地，如果业务可以支持不超过10个反馈位置，接收终端设备恰好为10个，此时传输资源池的反馈位置数量为10个，则认为资源合适；否则如果传输资源池的反馈位置数量小于10个，则认为资源不合适，不能选择10个接收端UE对应10个反馈位置的HARQ反馈类型配置信息，或者，如果传输资源池的反馈位置数量为5个，则此时可以将10个接收端UE分成5组进行反馈。
在本公开一些实施例中，S102中的根据HARQ反馈类型配置信息向接收终端设备发送数据包，可以包括：
根据HARQ反馈类型配置信息，生成反馈指示信息；
向接收终端设备发送携带反馈指示信息的数据包，以使接收终端设备可以获取反馈指示信息，并根据反馈指示信息进行HARQ反馈。
在本公开一些实施例中，反馈指示信息可以包括下列中的至少一项：
HARQ反馈需求指示信息、反馈资源配置信息、多个反馈位置的 HARQ反馈需求指示信息、反馈位置数量信息、分组反馈参数信息、分组反馈的信号类型信息。
具体地，发送端UE可以根据HARQ反馈类型配置信息，选择合适的反馈类型和发送资源，并进行数据传输。
对于接收端UE来说，接收端UE在正确解码数据包之前，是不清楚数据包对应的业务信息的。一般来说，接收端UE也和发送端UE一样，可以从高层V2X layer，获得数据包对应的业务所属的组信息。具体地，组信息可以包括组内终端设备总数以及接收端UE在组内的标识(Identity，ID)。
但是，接收端UE根据组信息，并不足以获知将要接收到的数据包采用下列的哪种反馈类型：不进行HARQ反馈、进行HARQ反馈，一个反馈位置进行HARQ反馈，多个反馈位置的HARQ反馈，分组反馈的HARQ反馈等。因此，发送端UE需要在发送数据包时，将具体的反馈指示信息告知给接收端UE，反馈指示信息可以具体包括如下内容：
HARQ反馈需求指示信息，用于告知接收端UE是否需要HARQ反馈；
反馈资源配置信息，用于告知接收端UE进行HARQ反馈的反馈位置，例如在接收最后时刻1ms之后，还是3ms之后进行HARQ反馈，或者具体反馈的频域位置信息等；
多个反馈位置的HARQ反馈需求指示信息，用于告知接收端UE是否需要多个反馈，如果多个反馈位置的HARQ反馈需求指示信息只有1bit，那么，多个反馈位置的HARQ反馈只能是基于业务所属的组内公知的组内终端设备总数，为每个接收端UE分配一个反馈位置的方式进行HARQ反馈；
反馈位置数量，用于告知接收端UE是多个反馈位置的个数，如果反馈位置数量显示为个数，则可以允许对业务所属的组内的接收端UE进行进一步的分组反馈，例如，组内的接收端UE一共有20个，但只有5个反馈位置的情况，则需要进行分组反馈；
分组反馈参数，用于告知接收端UE分组反馈的参数，例如是基于组 内的接收端UE ID进行分组反馈，还是基于组内的接收端UE与发送端UE之间的距离进行分组反馈等；
分组反馈的信号类型，用于告知接收端UE在分组反馈中，是只在数据包接收失败时反馈NACK信号，还是可以在数据包接收成功时反馈ACK信号并且在数据包接收失败时反馈NACK信号。
在本公开一些实施例中，该数据传输方法还可以包括：
确定业务的最大HARQ传输次数。
其中，发送终端设备可以基于最大HARQ传输次数确定其针对一个数据包的最大传输次数。
在本公开一些实施例中，S102中的向接收终端设备发送数据包，可以包括：
向接收终端设备发送包括最大HARQ传输次数指示信息的数据包，其中，最大HARQ传输次数指示信息用于指示当前传输次数是否为最大HARQ传输次数。
HARQ反馈是为了根据ACK信号和/或NACK信号进行精确重传，从而达到提升传输成功率和降低资源消耗的目的。一般来说，无论是组播传输方式还是单播传输方式，在接收到NACK信号之后，均需要进行HARQ重传，以达到使接收端UE正确接收数据的目的。但重传不能无限制进行，需要有个最大次数的限制。HARQ最大重传次数一般与业务的QoS参数是相关的。例如，误块率要求较高的业务一般需要较多的重传次数，重传次数越多，资源消耗越多，时延也越长，因此还需要同时考虑优先级和时延需求，以确定能够使数据传输的资源消耗较少、时延较少且传输成功率较高的最大HARQ传输次数。
具体地，发送终端设备在每次发送数据包之前，都会判断该数据包的当前传输次数是否为该数据包对应的业务的最大HARQ传输次数，并根据判断结果生成最大HARQ传输次数指示信息，以使接收终端设备能够基于最大HARQ传输次数指示信息确定当前传输次数是否为最大HARQ传输次数。
在一些实施例中，发送终端设备在首次发送数据包时，可以向接收端 UE发送包括最大HARQ传输次数指示信息的数据包。
在另一些实施例中，发送终端设备在接收到接收端UE反馈的NACK信号且当前传输次数不是最大HARQ传输次数时，可以向反馈NACK信号的接收端UE发送包括最大HARQ传输次数指示信息的数据包。
下面，将根据两种不同的资源分配模式，分别说明发送端UE如何确定其所归属的基站为待发送的数据包对应的业务所配置的最大HARQ传输次数。
一、在Mode 1下
在本公开一些实施例中，确定业务的最大HARQ传输次数，可以包括：
在发送终端设备处于连接态的情况下，向网络设备发送业务的QoS参数；
接收网络设备配置的最大HARQ传输次数。
在发送终端设备处于连接态的情况下，由于最大HARQ传输次数根据QoS参数配置的，连接态的发送端UE可以上报QoS参数给所归属的网络设备即基站，从基站获得最大HARQ传输次数的配置值。
在网络设备为业务配置HARQ反馈需求指示信息时，发送终端设备已向网络设备发送过QoS参数的情况下，网络设备可以直接利用发送终端设备所发送的QoS参数，无需发送终端设备再次发送QoS参数。
二、在Mode 2下
在本公开另一些实施例中，确定为业务的最大HARQ传输次数，可以包括：
在发送终端设备处于非连接态的情况下，基于网络设备所发送的系统消息中的QoS参数与传输参数之间的映射关系，确定业务对应的最大HARQ传输次数。
具体地，针对非连接态的发送端UE而言，Idle/inactive发送端UE可以通过所归属的网络设备所发送的系统消息中的QoS参数与传输参数之间的映射关系，获得待发送的数据包对应的业务的QoS参数对应的最大HARQ传输次数的配置值，脱网的发送端UE可以通过预配置的方式QoS 参数与传输参数之间的映射关系，获得最大HARQ传输次数的配置值。
一般情况下，发送端UE获得最大HARQ传输次数之后，可以将该最大HARQ传输次数作为上限，对一个数据包进行多次发送。但是也不排除发送端UE提前中止HARQ重传，例如有更高优先级的业务抢占了资源，或者该业务的传输时延已经快超过要求，或者目前资源池比较拥塞。这些情况，都可以造成发送端UE在到达最大重传次数之前，提前终止重传。
图2示出了本公开第二方面实施例提供的数据传输方法的流程示意图。如图2所示，该数据传输方法可以由网络设备执行，如基站执行。具体地，该数据传输方法可以包括：
S201：接收发送终端设备发送的业务信息，其中，业务信息包括业务的QoS参数和/或业务所属的组信息；
S202：根据业务信息，配置HARQ反馈类型配置信息；
S203：向发送终端设备发送HARQ反馈类型配置信息。
在本公开实施例中，能够基于业务信息中的业务的QoS参数和/或业务所属的组信息，确定发送终端设备的HARQ反馈类型配置信息，并根据HARQ反馈类型配置信息，向接收终端设备发送数据包，实现了利用业务信息对HARQ机制的多种反馈类型的灵活配置，提高了数据传输过程中的反馈效率，从而提高了数据传输质量和数据传输效率。
在本公开一些实施例中，QoS参数至少可以包括下列中的一项：
业务速率信息、时延信息、优先级信息以及误块率信息。
在本公开一些实施例中，组信息至少可以包括业务所需要发送的组的大小，即组内终端设备总数。
在本公开一些实施例的S202中，在基站接收到业务信息之后，可以进行如下操作：
首先，根据业务的QoS参数，决定是否需要进行HARQ反馈，一般只有误块率信息要求比较高的业务才需要支持HARQ反馈，例如10^-1误块率的业务不需要支持HARQ反馈，低于10^-3误块率的需要进行HARQ反馈；如果决定不进行HARQ反馈，则HARQ反馈类型配置信息可以包括用于指示所有接收终端设备不进行反馈的信息；
其次，如果决定进行HARQ反馈，还需要根据业务的组信息，配置HARQ反馈类型配置信息，所配置的HARQ反馈类型配置信息可以包括下列中的任一项：
用于指示数据包接收失败的接收终端设备在同一个反馈位置反馈否定确认NACK信号的信息；
用于指示数据包接收成功的接收终端设备在与其对应的反馈位置反馈确认ACK信号，数据包接收失败的接收终端设备在与其对应的反馈位置反馈NACK信号的信息；
用于指示接收终端设备分组反馈，每组中的数据包接收失败的接收终端设备在与该组对应的反馈位置反馈NACK信号的信息；
用于指示接收终端设备分组反馈，每组中的数据包接收成功的接收终端设备在与该组对应的反馈位置反馈ACK信号，每组中的数据包接收失败的接收终端设备在与该组对应的反馈位置反馈NACK信号的信息。
其中，数据包接收失败的接收终端设备在同一个反馈位置反馈否定确认NACK信号，为一个反馈位置的HARQ反馈，其他的HARQ反馈类型配置信息为多个反馈位置的HARQ反馈。
一般来说，当发送端UE没有从V2X layer获得业务的组信息，即发送端UE只知道这是一个组播业务，但组内终端设备总数以及组内终端设备ID都不清楚，并且没有将组信息上报给基站，此时就只能选择一个反馈位置的HARQ反馈；
当发送端UE的上报业务信息中包含了组信息，并且组信息至少包括组内终端设备总数，则可以选择多个反馈位置的HARQ反馈；
对是否分组反馈的选择，除了需要考虑组内终端设备总数，还需要进一步考虑传输资源池的资源情况，因为组内终端设备总数越大，需要的反馈位置越多，开销也越大，只有在业务要求比较高的情况下，例如优先级较高和/或误块率要求高，同时资源负荷可以承受，此时，才会配置HARQ反馈类型配置信息为：数据包接收成功的接收终端设备在与其对应的反馈位置反馈确认ACK信号，数据包接收失败的接收终端设备在与其对应的反馈位置反馈NACK信号，让每个接收端UE有一个专门的反馈位置，更 精确的反馈，一旦有一个或者几个接收端UE发生接收失败，即反馈了NACK信号，则可以针对他们重点重传。
由此，分组反馈是一种折中方式，效果和开销均处于所有接收端UE在一个反馈位置进行反馈和每个接收端UE在各自的反馈位置进行反馈之间。具体地，可以采用如下的分组方式对接收端UE进行分组：
根据组内终端设备ID进行分组反馈的反馈位置选择，例如组内一共40个接收端UE，现有4个反馈位置，那么ID顺序为1-10的接收端UE(例如ID为0-9)使用反馈位置1，ID顺序为11-20的接收端UE(例如ID为10-19)使用反馈位置2，依次类推；或者每个接收端UE用自己的ID进行模4的操作，结果为0的使用反馈位置1，结果为1的使用反馈位置2，结果为2的使用反馈位置3，结果为3的使用反馈位置4；
根据与发送端UE的距离进行分组反馈的反馈位置选择，例如这个业务的通信距离为100米，现有4个反馈位置，那么距离发送端UE 0-25米范围之内的接收端UE用反馈位置1，距离发送端UE 25-50米范围之内的接收端UE用反馈位置2，距离发送端UE 50-75米范围之内的接收端UE用反馈位置3，距离发送端UE 75-100米范围之内的接收端UE用反馈位置4；或者采取非等分距离的其它算法，决定按距离分组的方式，其中，按照距离分组的方式，可以在标准中规定好，或者在配置信令里通知，或者在标准中规定分组方式的具体内容和标号，在配置信令或者动态信令里将标号通知给接收端UE；
根据接收信号强度进行分组反馈的反馈位置选择，例如，将接收信号强度在一定范围之内的划分为一组接收端UE，在该组的共同位置进行反馈。
基站在进行了上述决策过程之后，需要将具体的HARQ反馈类型配置信息发送给发送端UE。
在本公开一些实施例中，该数据传输方法还可以包括：
确定所确定的HARQ反馈类型对应的传输资源池信息，传输资源池信息包括反馈资源配置信息。
在一些实施例中，向发送终端设备发送HARQ反馈类型配置信息，可 以包括：
向发送终端设备发送包括传输资源池信息的HARQ反馈类型配置信息。
由此，基站还可以携带对应的资源给发送端UE，例如，通过RRC信令发送给发送端UE一个与反馈类型对应的传输资源池，供发送端UE在该传输资源池中选择合适的资源进行数据传输。
图3示出了本公开第三方面实施例提供的数据传输方法的流程示意图。如图3所示，该数据传输方法可以由接收终端设备执行，如接收端UE执行。具体地，该数据传输方法可以包括：
S301：接收发送终端设备所发送的数据包，其中，数据包包括数据包对应的反馈指示信息，反馈指示信息由发送终端设备根据HARQ反馈类型配置信息生成，HARQ反馈类型配置信息根据业务的业务信息配置，业务信息包括业务的QoS参数和/或业务所属的组信息；
S302：根据反馈指示信息，向发送终端设备进行HARQ反馈。
在本公开实施例中，能够基于业务信息中的业务的QoS参数和/或业务所属的组信息，确定发送终端设备的HARQ反馈类型配置信息，并根据HARQ反馈类型配置信息，向接收终端设备发送数据包，实现了利用业务信息对HARQ机制的多种反馈类型的灵活配置，并且使接收终端设备根据基于该HARQ反馈类型配置信息生成的反馈指示信息进行HARQ反馈，提高了数据传输过程中的反馈效率，从而提高了数据传输质量和数据传输效率。
在本公开一些实施例中，反馈指示信息可以包括下列中的至少一项：
HARQ反馈需求指示信息、反馈资源配置信息、多个反馈位置的HARQ反馈需求指示信息、反馈位置数量信息、分组反馈参数信息、分组反馈的信号类型信息。
当接收端UE在接收数据的同时，可以获得反馈指示信息，从而按照正确方式进行反馈。例如，如果反馈指示信息指示不需要反馈，则接收端UE只接收数据；如果反馈指示信息需要反馈且在一个反馈位置进行反馈，则接收端UE在数据包接收失败时，在该反馈位置反馈NACK信号； 如果反馈指示信息需要反馈且每个接收端UE各自的反馈位置进行反馈，则接收端UE按照自己的ID，找到对应的反馈位置，根据接收成功与否，反馈ACK信号或者NACK信号；如果反馈指示信息需要反馈且接收端UE进行分组反馈，则接收端UE根据分组反馈参数所告知的分组方式，在自己对应的反馈位置，根据在数据包接受失败的情况下反馈NACK信号，或者，在数据包接收成功的情况下反馈ACK信号以及在数据包接收失败的情况下反馈NACK信号。
在本公开一些实施例中，数据包还包括最大HARQ传输次数指示信息，最大HARQ传输次数指示信息用于指示当前重传输数是否等于数据包对应的业务的最大HARQ传输次数，最大HARQ传输次数根据业务的QoS参数配置。
在本公开一些实施例中，该数据传输方法还可以包括：
在数据包接收失败且最大HARQ传输次数指示信息指示当前传输次数不等于最大HARQ传输次数的情况下，等待发送终端设备重新发送数据包；
在数据包接收失败且最大HARQ传输次数指示信息指示当前传输次数等于最大HARQ传输次数的情况下，停止等待发送终端设备重新发送数据包。
对于接收端UE来说，首先接收端UE在未成功解码数据之前无法精确获得业务的QoS参数，无法知道最大HARQ传输次数，其次即使单播情况，通过RRC信令，发送端UE可以将这条链路上的最大HARQ传输次数配置给接收端UE，由于发送端UE还有可能提前终止重传尝试，基于上述原因，接收端UE不清楚HARQ重传的尝试行为，因此在反馈NACK信号之后，只能保持该HARQ进程一直等待发送端UE可能的重传，因为HARQ进程总数是有限的，一旦都占用，其它的业务就不能接收，因此需要避免对于重传HARQ进程的无谓等待。
由此，在发送端UE发送数据包时，可以包括该数据包是否为最后一次尝试传输的最大HARQ传输次数指示信息，即指示当前传输次数是否为最大HARQ传输次数的情况。一般来说，最大HARQ传输次数指示信息 携带在控制信息中，控制信息接收成功率高于数据。对于接收端UE来说，如果接收到的控制信息里，例如副链路控制信息(Sidelink control indicator，SCI)中，如果指示这不是最后一次重传，且接收端UE如果接收未成功，则继续等待，如果指示这是最后一次重传，且接收端UE如果未接收成功，则放弃等待，释放HARQ进程。
综上所述，本公开实施例的数据传输方法，可以使sidelink高效地支持HARQ反馈，并且能够根据不同情况选择或配置不同的HARQ反馈类型，从而更好的进行HARQ反馈和数据重传，在提升发送成功率的基础上，同时能够降低资源开销，从而提升整个数据传输效率和用户体验。
图4示出了本公开第五方面实施例提供的发送终端设备的结构示意图。该发送终端设备400例如为发送端UE，并且如图4所示，发送终端设备400可以包括：
反馈类型确定模块401，用于确定发送终端设备的HARQ反馈类型配置信息，其中，HARQ反馈类型配置信息根据业务的业务信息进行配置，业务信息包括业务的QoS参数和/或业务所属的组信息；
业务数据发送模块402，用于根据HARQ反馈类型配置信息，向接收终端设备发送数据包。
在本公开实施例中，能够基于业务信息中的业务的QoS参数和/或业务所属的组信息，确定发送终端设备所的HARQ反馈类型配置信息，并根据HARQ反馈类型配置信息，向接收终端设备发送数据包，实现了利用业务信息对HARQ机制的多种反馈类型的灵活配置，提高了数据传输过程中的反馈效率，从而提高了数据传输质量和数据传输效率。
在本公开一些实施例中，服务质量QoS参数至少可以包括下列中的一项：
业务速率信息、时延信息、优先级信息以及误块率信息。
在本公开一些实施例中，组信息至少可以包括业务所需要发送的组的大小，即组内终端设备总数。
在本公开一些实施例中，HARQ反馈类型配置信息可以包括下列的任一项：
用于指示所有接收终端设备不进行反馈的信息；
用于指示数据包接收失败的接收终端设备在同一个反馈位置反馈否定确认NACK信号的信息；
用于指示数据包接收成功的接收终端设备在与其对应的反馈位置反馈确认ACK信号，数据包接收失败的接收终端设备在与其对应的反馈位置反馈NACK信号的信息；
用于指示接收终端设备分组反馈，每组中的数据包接收失败的接收终端设备在与该组对应的反馈位置反馈NACK信号的信息；
用于指示接收终端设备分组反馈，每组中的数据包接收成功的接收终端设备在与该组对应的反馈位置反馈ACK信号，每组中的数据包接收失败的接收终端设备在与该组对应的反馈位置反馈NACK信号的信息。
在本公开一些实施例中，反馈类型确定模块401可以包括：
业务信息发送单元，用于在发送终端设备处于连接态的情况下，向网络设备发送业务信息；
反馈类型接收单元，用于接收网络设备配置的HARQ反馈类型配置信息。
对于一个发送端UE而言，当它需要发起一个单播业务或者组播业务时，如果该发送端UE处于连接态，则该发送端UE可以直接与基站进行交互，该发送端UE可以向基站发送待发送的数据包对应的业务的QoS参数和/或业务所属的组信息，以请求基站为其配置HARQ反馈类型配置信息。
进一步地，在一些实施例中，反馈类型接收单元所接收的HARQ反馈类型配置信息还包括传输资源池信息，传输资源池信息包括反馈资源配置信息，其中，传输资源池与HARQ反馈类型相对应。
如果网络设备同时为该业务配置了对应的传输资源池，则网络设备为业务配置的HARQ反馈类型配置信息还可以包括传输资源池信息，使得发送端UE可以在该传输资源池中按照HARQ反馈类型配置信息进行数据包的传输。
在本公开另一些实施例中，反馈类型确定模块401可以包括：
反馈类型匹配单元，用于在发送终端设备处于非连接态的情况下，基于网络设备所发送的系统消息中的映射规则，确定业务信息对应的HARQ反馈类型配置信息。
对于一个发送端UE而言，当它需要发起一个单播业务或者组播业务时，如果该发送端UE处于非连接态，即发送的UE为Idle/inactive发送端UE，则该发送端UE无需与基站进行交互，该发送端UE可以直接基于所存储的系统消息中的或者预配置的映射规则以及业务信息，来自行决定待发送的数据包对应的HARQ反馈类型配置信息。
进一步地，在一些实施例中，该发送终端设备400还可以包括：
状态转换确定模块，用于在公共传输资源池的反馈资源配置不满足HARQ反馈类型配置信息对应的反馈需求的情况下，确定是否允许发送终端设备由非连接态转换为连接态。
例如在需要多个反馈位置进行HARQ反馈的情况下，如果公共传输资源池不能为发送端UE提供相应的反馈位置的传输资源，即公共传输资源池的反馈资源配置不满足HARQ反馈类型配置信息对应的反馈需求，需要确定是否能够使发送端UE由非连接态切换为连接态。
进一步地，在一些实施例中，该发送终端设备400还可以包括：
状态转换执行模块，用于若反馈资源配置不满足反馈需求且允许发送终端设备由非连接态转换为连接态，将发送终端设备由非连接态转换为连接态。
具体地，若HARQ反馈方式为多个反馈，并且公共传输资源池所允许的最大反馈位置数量小于组信息中的接收终端设备数量，同时HARQ反馈允许发送终端设备由非连接态转换为连接态，可以使发送端UE由非连接态转换为连接态。例如，可以使发送端UE进行RRC连接建立，转入连接态，以专用信令向网络设备请求合适的资源。
在本公开一些实施例中，映射规则可以包括下列中的至少一项：
标准化QoS参数与HARQ反馈需求之间的映射关系；
标准化QoS参数与多个反馈位置的HARQ反馈需求之间的映射关系；
标准化QoS参数与所支持的HARQ反馈的最大反馈位置数量之间的映射关系；
满足预定条件的一个或者多个QoS参数与HARQ反馈需求之间的映射关系；
满足预定条件的一个或者多个QoS参数与多个反馈位置的HARQ反馈需求之间的映射关系；
满足预定条件的一个或者多个QoS参数与所支持的HARQ反馈的最大反馈位置数量之间的映射关系。
在本公开另一些实施例中，映射规则还可以包括下列中的至少一项：
根据组信息，确定HARQ反馈类型配置信息；
根据组信息中的接收终端设备数量和业务的最大反馈位置数量，确定HARQ反馈类型配置信息；
根据组信息中的接收终端设备数量和传输资源池的反馈位置数量，确定HARQ反馈类型配置信息；
根据组信息中的接收终端设备数量、业务的最大反馈位置数量和传输资源池的反馈位置数量，确定HARQ反馈类型配置信息。
在本公开一些实施例中，业务数据发送模块402可以包括：
指示信息生成单元，用于根据HARQ反馈类型配置信息，生成反馈指示信息；
第一数据发送单元，用于向接收终端设备发送携带反馈指示信息的数据包。
因此，发送端UE需要在发送数据包时，可以直接通过反馈指示信息告知给接收端UE如何进行反馈。
在本公开一些实施例中，反馈指示信息可以包括下列中的至少一项：
HARQ反馈需求指示信息、反馈资源配置信息、多个反馈位置的HARQ反馈需求指示信息、反馈位置数量信息、分组反馈参数信息、分组反馈的信号类型信息。
在本公开一些实施例中，该发送终端设备400还可以包括：
传输次数确定模块，用于确定为业务的最大HARQ传输次数。
进一步地，在一些实施例中，业务数据发送模块402可以包括：
第二数据发送单元，用于向接收终端设备发送包括最大HARQ传输次数指示信息的数据包，其中，最大HARQ传输次数指示信息用于指示当前传输次数是否为最大HARQ传输次数。
具体地，发送终端设备在每次发送数据包之前，都会判断该数据包的当前传输次数是否为最大HARQ传输次数，并根据判断结果生成最大HARQ传输次数指示信息，以使接收终端设备能够基于最大HARQ传输次数指示信息确定当前传输次数是否为最大HARQ传输次数。
在本公开一些实施例中，传输次数确定模块可以包括：
需求参数发送单元，用于在发送终端设备处于连接态的情况下，向网络设备发送业务的QoS参数；
传输次数接收单元，用于接收网络设备配置的最大HARQ传输次数。
在发送终端设备处于连接态的情况下，由于最大HARQ传输次数根据QoS参数配置的，连接态的发送端UE可以上报QoS参数给基站，从基站获得最大HARQ传输次数的配置值。
在本公开另一些实施例中，传输次数确定模块可以包括：
传输次数匹配单元，用于在发送终端设备处于非连接态的情况下，基于网络设备所发送的系统消息中的QoS参数与传输参数之间的映射关系，确定业务对应的最大HARQ传输次数。
在发送终端设备处于非连接态的情况下，基于网络设备所发送的系统消息中的QoS参数与传输参数之间的映射关系，确定业务对应的最大HARQ传输次数。
本公开实施例提供的发送终端设备实现图1的方法实施例中终端设备实现的各个过程，为避免重复，这里不再赘述。
图5示出了本公开第五方面实施例提供的网络设备的结构示意图。该网络设备500例如可以为基站，并且如图5所示，网络设备500可以包括：
业务信息接收模块501，用于接收发送终端设备发送的业务信息，其中，业务信息包括业务的QoS参数和/或业务所属的组信息；
反馈类型配置模块502，用于根据业务信息，配置HARQ反馈类型配置信息；
反馈类型发送模块503，用于向发送终端设备发送HARQ反馈类型配置信息。
在本公开实施例中，能够基于业务信息中的业务的QoS参数和/或业务所属的组信息，确定发送终端设备的HARQ反馈类型配置信息，并根据HARQ反馈类型配置信息，向接收终端设备发送数据包，实现了利用业务信息对HARQ机制的多种反馈类型的灵活配置，提高了数据传输过程中的反馈效率，从而提高了数据传输质量和数据传输效率。
在本公开一些实施例中，QoS参数至少可以包括下列中的一项：
业务速率信息、时延信息、优先级信息以及误块率信息。
在本公开一些实施例中，组信息至少可以包括业务所需要发送的组的大小，即组内终端设备总数。
在本公开一些实施例中，该网络设备500还可以包括：
资源信息确定模块，用于确定所确定的HARQ反馈类型对应的传输资源池信息，传输资源池信息包括反馈资源配置信息；
进一步地，在一些实施例中，反馈类型发送模块503具体可以用于：向发送终端设备发送包括传输资源池信息的HARQ反馈类型配置信息。
本公开实施例提供的网络设备实现图2的方法实施例中终端设备实现的各个过程，为避免重复，这里不再赘述。
图6示出了本公开第六方面实施例提供的接收终端设备的结构示意图。该接收终端设备600例如可以为接收端UE，并且如图6所示，接收终端设备600可以包括：
业务数据接收模块601，用于接收发送终端设备所发送的数据包，其中，数据包包括数据包对应的反馈指示信息，反馈指示信息由发送终端设备根据HARQ反馈类型配置信息生成，HARQ反馈类型配置信息根据业务的业务信息配置，业务信息包括业务的QoS参数和/或业务所属的组信息；
接收结果反馈模块602，用于根据反馈指示信息，向发送终端设备进 行HARQ反馈。
在本公开实施例中，能够基于业务信息中的业务的QoS参数和/或业务所属的组信息，确定发送终端设备的HARQ反馈类型配置信息，并根据HARQ反馈类型配置信息，向接收终端设备发送数据包，实现了利用业务信息对HARQ机制的多种反馈类型的灵活配置，提高了数据传输过程中的反馈效率，从而提高了数据传输质量和数据传输效率。
在本公开一些实施例中，数据包还可以包括最大HARQ传输次数指示信息，最大HARQ传输次数指示信息用于指示当前重传输数是否等于数据包对应的业务的最大HARQ传输次数，最大HARQ传输次数根据业务的QoS参数配置。
进一步地，在一些实施例中，该接收终端设备600还包括：
等待传输确定模块，用于在数据包接收失败且最大HARQ传输次数指示信息指示当前传输次数不等于最大HARQ传输次数的情况下，等待发送终端设备重新发送数据包；在数据包接收失败且最大HARQ传输次数指示信息指示当前传输次数等于最大HARQ传输次数的情况下，停止等待发送终端设备重新所述数据包。
由此，在发送端UE发送数据包时，可以携带该数据包是否为最后一次尝试传输的最大HARQ传输次数指示信息，即指示当前传输次数是否为最大HARQ传输次数的情况。一般来说，最大HARQ传输次数指示信息携带在控制信息中，控制信息接收成功率高于数据。对于接收端UE来说，如果接收到的控制信息里，例如SCI中，如果指示这不是最后一次重传，且接收端UE如果接收未成功，则继续等待，如果指示这是最后一次重传，且接收端UE如果未接收成功，则放弃等待，释放HARQ进程。
本公开实施例提供的接收终端设备实现图3的方法实施例中终端设备实现的各个过程，为避免重复，这里不再赘述。
本公开实施例还提供一种终端设备，包括处理器，存储器，存储在存储器上并可在所述处理器上运行的计算机程序，该计算机程序被处理器执行时实现上述本公开第一方面由发送终端设备所执行的数据传输方法实施例的各个过程或实现上述本公开第三方面由接收终端设备所执行的数据传 输方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
图7为本公开第七方面提供的终端设备的示例的硬件结构示意图。如图7所示，该终端设备700例如可以为发送终端设备或者接收终端设备，在此不做限制。
如图7所示，该终端设备700包括但不限于：射频单元701、网络模块702、音频输出单元703、输入单元704、传感器705、显示单元706、用户输入单元707、接口单元708、存储器709、处理器710、以及电源711等部件。本领域技术人员可以理解，图7中示出的终端设备结构并不构成对终端设备的限定，终端设备可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。在本公开实施例中，终端设备包括但不限于手机、平板电脑、笔记本电脑、掌上电脑、车载终端、可穿戴设备、以及计步器等。
处理器710是终端设备的控制中心，利用各种接口和线路连接整个终端设备的各个部分，通过运行或执行存储在存储器709内的软件程序和/或模块，以及调用存储在存储器709内的数据，执行终端设备的各种功能和处理数据，从而对终端设备进行整体监控。处理器710可包括一个或多个处理单元；可选地，处理器710可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器710中。
存储器709可用于存储软件程序以及各种数据。存储器709可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等；存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外，存储器709可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
在本实施例中，处理器710可运行存储在存储器709中存储的软件程 序，以实现上述数据传输方法的操作。例如，处理器710可以用于：
确定发送终端设备的混合自动重传请求HARQ反馈类型配置信息，其中，HARQ反馈类型配置信息根据业务的业务信息进行配置，业务信息包括业务的服务质量QoS参数和/或业务所属的组信息；根据HARQ反馈类型配置信息，向接收终端设备发送数据包；
或者，
可以用于接收发送终端设备所发送的数据包，其中，数据包包括数据包对应的反馈指示信息，反馈指示信息由发送终端设备根据HARQ反馈类型配置信息生成，HARQ反馈类型配置信息根据业务的业务信息配置，业务信息包括业务的QoS参数和/或业务所属的组信息；根据反馈指示信息，向发送终端设备进行HARQ反馈。
在本公开实施例中，能够基于业务信息中的业务的QoS参数和/或业务所属的组信息，确定发送终端设备的HARQ反馈类型配置信息，并根据HARQ反馈类型配置信息，向接收终端设备发送数据包，实现了利用业务信息对HARQ机制的多种反馈类型的灵活配置，提高了数据传输过程中的反馈效率，从而提高了数据传输质量和数据传输效率。
应理解的是，本公开实施例中，射频单元701可用于收发信息或通话过程中，信号的接收和发送，具体的，将来自基站的下行数据接收后，给处理器710处理；另外，将上行的数据发送给基站。通常，射频单元701包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。此外，射频单元701还可以通过无线通信系统与网络和其他设备通信。
终端设备通过网络模块702为用户提供了无线的宽带互联网访问，如帮助用户收发电子邮件、浏览网页和访问流式媒体等。
音频输出单元703可以将射频单元701或网络模块702接收的或者在存储器709中存储的音频数据转换成音频信号并且输出为声音。而且，音频输出单元703还可以提供与终端设备700执行的特定功能相关的音频输出(例如，呼叫信号接收声音、消息接收声音等等)。音频输出单元703包括扬声器、蜂鸣器以及受话器等。
输入单元704用于接收音频或视频信号。输入单元704可以包括图形处理器(Graphics Processing Unit，GPU)7041和麦克风7042，图形处理器7041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。处理后的图像帧可以显示在显示单元706上。经图形处理器7041处理后的图像帧可以存储在存储器709(或其它存储介质)中或者经由射频单元701或网络模块702进行发送。麦克风7042可以接收声音，并且能够将这样的声音处理为音频数据。处理后的音频数据可以在电话通话模式的情况下转换为可经由射频单元701发送到移动通信基站的格式输出。
终端设备700还包括至少一种传感器705，比如光传感器、运动传感器以及其他传感器。具体地，光传感器包括环境光传感器及接近传感器，其中，环境光传感器可根据环境光线的明暗来调节显示面板7061的亮度，接近传感器可在终端设备700移动到耳边时，关闭显示面板7061和/或背光。作为运动传感器的一种，加速计传感器可检测各个方向上(一般为三轴)加速度的大小，静止时可检测出重力的大小及方向，可用于识别终端设备姿态(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等；传感器705还可以包括指纹传感器、压力传感器、虹膜传感器、分子传感器、陀螺仪、气压计、湿度计、温度计、红外线传感器等，在此不再赘述。
显示单元706用于显示由用户输入的信息或提供给用户的信息。显示单元706可包括显示面板7061，可以采用液晶显示器(Liquid Crystal Display，LCD)、有机发光二极管(Organic Light-Emitting Diode,OLED)等形式来配置显示面板7061。
用户输入单元707可用于接收输入的数字或字符信息，以及产生与终端设备的用户设置以及功能控制有关的键信号输入。具体地，用户输入单元707包括触控面板7071以及其他输入设备7072。触控面板7071，也称为触摸屏，可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板7071上或在触控面板7071附近的操作)。触控面板7071可包括触摸检测装置和触摸控制器两个部分。其 中，触摸检测装置检测用户的触摸方位，并检测触摸操作带来的信号，将信号传送给触摸控制器；触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再送给处理器710，接收处理器710发来的命令并加以执行。此外，可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板7071。除了触控面板7071，用户输入单元707还可以包括其他输入设备7072。具体地，其他输入设备7072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
进一步的，触控面板7071可覆盖在显示面板7061上，当触控面板7071检测到在其上或附近的触摸操作后，传送给处理器710以确定触摸事件的类型，随后处理器710根据触摸事件的类型在显示面板7061上提供相应的视觉输出。虽然在图7中，触控面板7071与显示面板7061是作为两个独立的部件来实现终端设备的输入和输出功能，但是在某些实施例中，可以将触控面板7071与显示面板7061集成而实现终端设备的输入和输出功能，具体此处不做限定。
接口单元708为外部装置与终端设备700连接的接口。例如，外部装置可以包括有线或无线头戴式耳机端口、外部电源(或电池充电器)端口、有线或无线数据端口、存储卡端口、用于连接具有识别模块的装置的端口、音频输入/输出(I/O)端口、视频I/O端口、耳机端口等等。接口单元708可以用于接收来自外部装置的输入(例如，数据信息、电力等等)并且将接收到的输入传输到终端设备700内的一个或多个元件或者可以用于在终端设备700和外部装置之间传输数据。
终端设备700还可以包括给各个部件供电的电源711(比如电池)，可选地，电源711可以通过电源管理系统与处理器710逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。
另外，终端设备700包括一些未示出的功能模块，在此不再赘述。
本公开实施例还提供一种网络设备，包括处理器、存储器及存储在存储器上并可在处理器上运行的计算机程序，计算机程序被处理器执行时实现上述本公开第二方面由由网络设备所执行的数据传输方法实施例的各个 过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
本公开实施例还提供一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现上述数据传输方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，所述的计算机可读存储介质的示例包括非暂态计算机可读存储介质，如只读存储器(Read-Only Memory，简称ROM)、随机存取存储器(Random Access Memory，简称RAM)、磁碟或者光盘等。
上面参考根据本公开的实施例的方法、装置(系统)和计算机程序产品的流程图和/或框图描述了本公开的各方面。应当理解，流程图和/或框图中的每个方框以及流程图和/或框图中各方框的组合可以由计算机程序指令实现。这些计算机程序指令可被提供给通用计算机、专用计算机、或其它可编程数据处理装置的处理器，以产生一种机器，使得经由计算机或其它可编程数据处理装置的处理器执行的这些指令使能对流程图和/或框图的一个或多个方框中指定的功能/动作的实现。这种处理器可以是但不限于是通用处理器、专用处理器、特殊应用处理器或者现场可编程逻辑电路。还可理解，框图和/或流程图中的每个方框以及框图和/或流程图中的方框的组合，也可以由执行指定的功能或动作的专用硬件来实现，或可由专用硬件和计算机指令的组合来实现。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
上面结合附图对本公开的实施例进行了描述，但是本公开并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本公开的启示下，在不脱离本公开宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本公开的保护之内。

Claims (37)

  1. 一种数据传输方法，应用于发送终端设备，包括：
    确定所述发送终端设备的混合自动重传请求HARQ反馈类型配置信息，其中，所述HARQ反馈类型配置信息根据业务的业务信息进行配置，所述业务信息包括所述业务的服务质量QoS参数和/或所述业务所属的组信息；
    根据所述HARQ反馈类型配置信息，向接收终端设备发送数据包。
  2. 根据权利要求1所述的方法，其中，所述HARQ反馈类型配置信息包括下列的任一项：
    用于指示所有所述接收终端设备不进行反馈的信息；
    用于指示所述数据包接收失败的接收终端设备在同一个反馈位置反馈否定确认NACK信号的信息；
    用于指示所述数据包接收成功的接收终端设备在与其对应的反馈位置反馈确认ACK信号，所述数据包接收失败的接收终端设备在与其对应的反馈位置反馈NACK信号的信息；
    用于指示所述接收终端设备分组反馈，每组中的所述数据包接收失败的接收终端设备在与该组对应的反馈位置反馈NACK信号的信息；
    用于指示所述接收终端设备分组反馈，每组中的所述数据包接收成功的接收终端设备在与该组对应的反馈位置反馈ACK信号，每组中的所述数据包接收失败的接收终端设备在与该组对应的反馈位置反馈NACK信号的信息。
  3. 根据权利要求1所述的方法，其中，所述确定所述发送终端设备的HARQ反馈类型配置信息，包括：
    在所述发送终端设备处于连接态的情况下，向网络设备发送所述业务信息；
    接收所述网络设备配置的所述HARQ反馈类型配置信息。
  4. 根据权利要求3所述的方法，其中，所述HARQ反馈类型配置信息还包括传输资源池信息，所述传输资源池信息包括反馈资源配置信息，其中，传输资源池与HARQ反馈类型相对应。
  5. 根据权利要求1所述的方法，其中，所述确定所述发送终端设备的HARQ反馈类型配置信息，包括：
    在所述发送终端设备处于非连接态的情况下，基于网络设备所发送的系统消息中的映射规则，确定所述业务信息对应的所述HARQ反馈类型配置信息。
  6. 根据权利要求5所述的方法，其中，在所述基于网络设备所发送的系统消息中的映射规则，确定所述业务信息对应的所述HARQ反馈类型配置信息之后，还包括：
    在公共传输资源池的反馈资源配置不满足所述HARQ反馈类型配置信息对应的反馈需求的情况下，确定是否允许所述发送终端设备由所述非连接态转换为连接态。
  7. 根据权利要求6所述的方法，其中，在所述确定是否允许所述发送终端设备由所述非连接态转换为连接态之后，还包括：
    若所述反馈资源配置不满足所述反馈需求且允许所述发送终端设备由所述非连接态转换为所述连接态，将所述发送终端设备由所述非连接态转换为所述连接态。
  8. 根据权利要求5所述的方法，其中，所述映射规则包括下列中的至少一项：
    标准化QoS参数与HARQ反馈需求之间的映射关系；
    标准化QoS参数与多个反馈位置的HARQ反馈需求之间的映射关系；
    标准化QoS参数与所支持的HARQ反馈的最大反馈位置数量之间的映射关系；
    满足预定条件的一个或者多个QoS参数与HARQ反馈需求之间的映射关系；
    满足预定条件的一个或者多个QoS参数与多个反馈位置的HARQ反馈需求之间的映射关系；
    满足预定条件的一个或者多个QoS参数与所支持的HARQ反馈的最大反馈位置数量之间的映射关系。
  9. 根据权利要求8所述的方法，其中，所述映射规则还包括下列中的至少一项：
    根据所述组信息，确定所述HARQ反馈类型配置信息；
    根据所述组信息中的接收终端设备数量和所述业务的最大反馈位置数量，确定所述HARQ反馈类型配置信息；
    根据所述组信息中的接收终端设备数量和传输资源池的反馈位置数量，确定所述HARQ反馈类型配置信息；
    根据所述组信息中的接收终端设备数量、所述业务的最大反馈位置数量和所述传输资源池的反馈位置数量，确定所述HARQ反馈类型配置信息。
  10. 根据权利要求1所述的方法，其中，所述根据所述HARQ反馈类型配置信息，向接收终端设备发送数据包，包括：
    根据所述HARQ反馈类型配置信息，生成反馈指示信息；
    向所述接收终端设备发送包括所述反馈指示信息的所述数据包。
  11. 根据权利要求10所述的方法，其中，所述反馈指示信息包括下列中的至少一项：
    HARQ反馈需求指示信息、反馈资源配置信息、多个反馈位置的HARQ反馈需求指示信息、反馈位置数量信息、分组反馈参数信息、分组反馈的信号类型信息。
  12. 根据权利要求1所述的方法，其中，还包括：
    确定所述业务的最大HARQ传输次数。
  13. 根据权利要求12所述的方法，其中，所述向接收终端设备发送数据包，包括：
    向所述接收终端设备发送包括最大HARQ传输次数指示信息的所述数据包，其中，所述最大HARQ传输次数指示信息用于指示当前传输次数是否为所述最大HARQ传输次数。
  14. 根据权利要求12所述的方法，其中，所述确定所述业务的最大HARQ传输次数，包括：
    在所述发送终端设备处于连接态的情况下，向网络设备发送所述业务的QoS参数；
    接收所述网络设备配置的所述最大HARQ传输次数。
  15. 根据权利要求12所述的方法，其中，所述确定所述业务的最大HARQ传输次数，包括：
    在所述发送终端设备处于非连接态的情况下，基于网络设备所发送的系统消息中的QoS参数与传输参数之间的映射关系，确定所述业务对应的所述最大HARQ传输次数。
  16. 一种数据传输方法，应用于网络设备，包括：
    接收发送终端设备发送的业务信息，其中，所述业务信息包括业务的QoS参数和/或所述业务所属的组信息；
    根据所述业务信息，配置HARQ反馈类型配置信息；
    向所述发送终端设备发送所述HARQ反馈类型配置信息。
  17. 根据权利要求16所述的方法，其中，还包括：
    确定所确定的HARQ反馈类型对应的传输资源池信息，所述传输资源池信息包括反馈资源配置信息；
    其中，所述向所述发送终端设备发送所述HARQ反馈类型配置信息，包括：
    向所述发送终端设备发送包括所述传输资源池信息的HARQ反馈类型配置信息。
  18. 一种数据传输方法，应用于接收终端设备，包括：
    接收发送终端设备所发送的数据包，其中，所述数据包包括所述数据包对应的反馈指示信息，所述反馈指示信息由所述发送终端设备根据HARQ反馈类型配置信息生成，所述HARQ反馈类型配置信息根据业务的业务信息配置，所述业务信息包括所述业务的QoS参数和/或所述业务所属的组信息；
    根据所述反馈指示信息，向所述发送终端设备进行HARQ反馈。
  19. 根据权利要求18所述的方法，其中，所述数据包还包括最大HARQ传输次数指示信息，所述最大HARQ传输次数指示信息用于指示当前重传输数是否等于所述数据包对应的业务的最大HARQ传输次数，所述最大HARQ传输次数根据所述业务的QoS参数配置。
  20. 根据权利要求19所述的方法，其中，还包括：
    在所述数据包接收失败且所述最大HARQ传输次数指示信息指示所述当前传输次数不等于所述最大HARQ传输次数的情况下，等待所述发送终端设备重新发送所述数据包；
    在所述数据包接收失败且所述最大HARQ传输次数指示信息指示所述当前传输次数等于所述最大HARQ传输次数的情况下，停止等待所述发送终端设备重新发送所述数据包。
  21. 一种发送终端设备，包括：
    反馈类型确定模块，用于确定所述发送终端设备的HARQ反馈类型配置信息，其中，所述HARQ反馈类型配置信息根据业务的业务信息进行配置，所述业务信息包括所述业务的QoS参数和/或所述业务所属的组信息；
    业务数据发送模块，用于根据所述HARQ反馈类型配置信息，向接收终端设备发送数据包。
  22. 根据权利要求21所述的发送终端设备，其中，所述反馈类型确定模块，包括：
    业务信息发送单元，用于在所述发送终端设备处于连接态的情况下，向网络设备发送所述业务信息；
    反馈类型接收单元，用于接收所述网络设备配置的所述HARQ反馈类型配置信息。
  23. 根据权利要求21所述的发送终端设备，其中，所述反馈类型确定模块，包括：
    反馈类型匹配单元，用于在所述发送终端设备处于非连接态的情况下，基于网络设备所发送的系统消息中的映射规则，确定所述业务信息对应的所述HARQ反馈类型配置信息。
  24. 根据权利要求21所述的发送终端设备，其中，所述发送终端设备，还包括：
    状态转换确定模块，用于在公共传输资源池的反馈资源配置不满足所述HARQ反馈类型配置信息对应的反馈需求的情况下，确定是否允许所述发送终端设备由所述非连接态转换为连接态。
  25. 根据权利要求24所述的发送终端设备，其中，所述发送终端设备，还包括：
    状态转换执行模块，用于若所述反馈资源配置不满足所述反馈需求且允许所述发送终端设备由所述非连接态转换为所述连接态，将所述发送终端设备由所述非连接态转换为所述连接态。
  26. 根据权利要求24所述的发送终端设备，其中，其中，所述业务数据发送模块，包括：
    指示信息生成单元，用于根据所述HARQ反馈类型配置信息，生成反馈指示信息；
    第一数据发送单元，用于向所述接收终端设备发送包括所述反馈指示信息的所述数据包。
  27. 根据权利要求21所述的发送终端设备，其中，所述发送终端设备还包括：
    传输次数确定模块，用于确定所述业务的最大HARQ传输次数。
  28. 根据权利要求27所述的发送终端设备，其中，所述发送终端设备还包括：
    第二数据发送单元，用于向所述接收终端设备发送包括最大HARQ传输次数指示信息的所述数据包，其中，所述最大HARQ传输次数指示信息用于指示当前传输次数是否为所述最大HARQ传输次数。
  29. 根据权利要求27所述的发送终端设备，其中，传输次数确定模块，包括：
    需求参数发送单元，用于在所述发送终端设备处于连接态的情况下，向网络设备发送所述业务的QoS参数；
    传输次数接收单元，用于接收所述网络设备配置的所述最大HARQ传输次数。
  30. 根据权利要求27所述的发送终端设备，其中，传输次数确定模块，包括：
    传输次数匹配单元，用于在所述发送终端设备处于非连接态的情况下，基于网络设备所发送的系统消息中的QoS参数与传输参数之间的映射关系，确定所述业务对应的所述最大HARQ传输次数。
  31. 一种网络设备，包括：
    业务信息接收模块，用于接收发送终端设备发送的业务信息，其中，所述业务信息包括业务的QoS参数和/或所述业务所属的组信息；
    反馈类型配置模块，用于根据所述业务信息，配置HARQ反馈类型配置信息；
    反馈类型发送模块，用于向所述发送终端设备发送所述HARQ反馈类型配置信息。
  32. 根据权利要求31所述的网络设备，其中，所述网络设备，还包括：
    资源信息确定模块，用于确定所确定的HARQ反馈类型对应的传输资源池信息，所述传输资源池信息包括反馈资源配置信息；
    所述反馈类型发送模块，具体用于：
    向所述发送终端设备发送包括所述传输资源池信息的HARQ反馈类型配置信息。
  33. 一种接收终端设备，包括：
    业务数据接收模块，用于接收发送终端设备所发送的数据包，其中，所述数据包包括所述数据包对应的反馈指示信息，所述反馈指示信息由所述发送终端设备根据HARQ反馈类型配置信息生成，所述HARQ反馈类型配置信息根据业务的业务信息配置，所述业务信息包括所述业务的QoS参数和/或所述业务所属的组信息；
    接收结果反馈模块，用于根据所述反馈指示信息，向所述发送终端设备进行HARQ反馈。
  34. 根据权利要求33所述的接收终端设备，其中，所述数据包还包括最大HARQ传输次数指示信息，所述最大HARQ传输次数指示信息用于指示当前重传输数是否等于所述数据包对应的业务的最大HARQ传输次数，所述最大HARQ传输次数根据所述业务的QoS参数配置；
    所述接收终端设备，还包括：
    等待传输确定模块，用于在所述数据包接收失败且所述最大HARQ传输次数指示信息指示所述当前传输次数不等于所述最大HARQ传输次数的情况下，等待所述发送终端设备重新发送所述数据包；
    在所述数据包接收失败且所述最大HARQ传输次数指示信息指示所述当前传输次数等于所述最大HARQ传输次数的情况下，停止等待所述发送终端设备重新发送所述数据包。
  35. 一种终端设备，包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求1至15任一项所述的数据传输方法的步骤或者如权利要求18至20中任一项所述的数据传输方法的步骤。
  36. 一种网络设备，包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求16或17所述的数据传输方法的步骤。
  37. 一种计算机可读存储介质，所述计算机可读存储介质上存储计算机程序，所述计算机程序被处理器执行时实现如权利要求1至20中任一项所述的数据传输方法的步骤。
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