WO2020133505A1 - 直连通信的数据传输方法、装置、设备及系统 - Google Patents

直连通信的数据传输方法、装置、设备及系统 Download PDF

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Publication number
WO2020133505A1
WO2020133505A1 PCT/CN2018/125826 CN2018125826W WO2020133505A1 WO 2020133505 A1 WO2020133505 A1 WO 2020133505A1 CN 2018125826 W CN2018125826 W CN 2018125826W WO 2020133505 A1 WO2020133505 A1 WO 2020133505A1
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WIPO (PCT)
Prior art keywords
directly connected
terminal
transmission
harq feedback
feedback information
Prior art date
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PCT/CN2018/125826
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English (en)
French (fr)
Inventor
赵群
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北京小米移动软件有限公司
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Filing date
Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to EP18944184.3A priority Critical patent/EP3905836B1/en
Priority to CN201880002700.0A priority patent/CN109792369B/zh
Priority to CN202111314724.XA priority patent/CN113972977B/zh
Priority to US17/418,751 priority patent/US11936482B2/en
Priority to ES18944184T priority patent/ES2958062T3/es
Priority to PL18944184.3T priority patent/PL3905836T3/pl
Priority to PCT/CN2018/125826 priority patent/WO2020133505A1/zh
Publication of WO2020133505A1 publication Critical patent/WO2020133505A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
    • 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
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057—Physical resource allocation for CQI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/23—Manipulation of direct-mode connections
    • 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
    • H04L2001/0092—Error control systems characterised by the topology of the transmission link
    • H04L2001/0097—Relays

Definitions

  • the present disclosure relates to the field of communications, and in particular, to a data transmission method, device, equipment, and system for direct communication.
  • V2X Internet of Vehicles
  • in-vehicle devices and other devices can communicate directly through sidelinks.
  • Direct connection communication has the characteristics of short delay and low overhead.
  • the direct connection communication method based on the scheduling of the access network device includes: the access network device sends the scheduling information to the user equipment of the direct communication communication sending end (Downlink Control Information) (DCI): Terminal), the first terminal sends the directly connected data to the directly connected communication receiving end user equipment (abbreviated as: the second terminal) according to the scheduling information of the access network device and the sidelink.
  • DCI Downlink Control Information
  • Embodiments of the present disclosure provide a data transmission method, device, device, and system for direct communication.
  • the technical solution is as follows:
  • a data transmission method of direct connection communication including:
  • the first terminal is in the same physical layer in the target time unit Sending the directly connected HARQ feedback information and the uplink information to the access network device on the uplink channel;
  • the directly connected HARQ feedback information is used to indicate a receiving state corresponding to the directly connected data
  • the directly connected data is physical layer data sent by the first terminal to the second terminal through the directly connected link.
  • the uplink information includes at least one of scheduling request SR, feedback response information ACK/NACK, channel state information CSI, channel quality indicator CQI, and uplink service data.
  • the predetermined timing relationship includes:
  • the first moment is earlier than the second moment, and the absolute value of the difference between the first moment and the second moment is greater than the predetermined processing duration;
  • the first moment is the end transmission moment of the directly connected HARQ feedback information in the directly connected feedback channel (Physical Sidelink Feedback Channel, PSFCH), and the second moment is the upstream of the uplink information on the physical layer The initial transmission moment in the channel.
  • PSFCH Physical Sidelink Feedback Channel
  • the predetermined processing time includes:
  • the first constant constant or,
  • the predefined duration of the communication protocol or,
  • the pre-configured duration of the access network device is not limited
  • the method further includes:
  • the DCI is used to indicate the start transmission moment of the direct-connected HARQ feedback information, and the start of the direct-connected HARQ feedback information
  • the transmission time is the time when the second terminal starts to send the directly connected HARQ feedback information to the first terminal
  • the first time is determined according to the start time of the directly connected HARQ feedback information and the predetermined transmission duration.
  • the method further includes:
  • the DCI is used to indicate the end transmission time of the direct connection data, and the end transmission time of the direct connection data is the first The moment when the second terminal receives the directly connected data sent by the first terminal;
  • the first time is determined according to the end transmission time of the directly connected data and the predetermined time interval.
  • the predetermined time interval includes:
  • the predefined time interval of the communication protocol or,
  • the pre-configured time interval of the access network device is the pre-configured time interval of the access network device.
  • the predetermined time interval includes:
  • the maximum time interval between the transmission of the directly connected data reported by the first terminal and the transmission of the directly connected HARQ feedback information corresponding to the directly connected data is the maximum time interval between the transmission of the directly connected data reported by the first terminal and the transmission of the directly connected HARQ feedback information corresponding to the directly connected data.
  • the method further includes:
  • the first terminal reports the predetermined time interval to the access network device; or,
  • the first terminal receives downlink signaling sent by the access network device, and feeds back the predetermined time interval to the access network device according to the downlink signaling.
  • a data transmission method for direct connection communication including:
  • the access network device receives the first The directly connected HARQ feedback information and the uplink information sent by the terminal on the same physical layer uplink channel in the target time unit;
  • the directly connected HARQ feedback information is used to indicate a receiving state corresponding to the directly connected data
  • the directly connected data is physical layer data sent by the first terminal to the second terminal through the directly connected link.
  • the uplink information includes at least one of scheduling request SR, feedback response information ACK/NACK, channel state information CSI, channel quality indicator CQI, and uplink service data.
  • the predetermined timing relationship includes:
  • the first moment is earlier than the second moment, and the absolute value of the difference between the first moment and the second moment is greater than the predetermined processing duration;
  • the first time is the end transmission time of the directly connected HARQ feedback information in the PSFCH
  • the second time is the start transmission time of the uplink information in the physical layer uplink channel.
  • the predetermined processing time includes:
  • the first constant constant or,
  • the predefined duration of the communication protocol or,
  • the pre-configured duration of the access network device is not limited
  • the method further includes:
  • the first time is determined according to the start time of the directly connected HARQ feedback information and the predetermined transmission duration.
  • the method further includes:
  • the access network device sends a DCI for scheduling the direct connection data transmission to the first terminal, the DCI is used to indicate an end transmission time of the direct connection data, and an end transmission time of the direct connection data The moment when the second terminal receives the directly connected data sent by the first terminal;
  • the first time is determined according to the end transmission time of the directly connected data and the predetermined time interval.
  • the predetermined time interval includes:
  • the predefined time interval of the communication protocol or,
  • the pre-configured time interval of the access network device is the pre-configured time interval of the access network device.
  • the predetermined time interval includes:
  • the maximum time interval between the transmission of the directly connected data reported by the first terminal and the transmission of the directly connected HARQ feedback information corresponding to the directly connected data is the maximum time interval between the transmission of the directly connected data reported by the first terminal and the transmission of the directly connected HARQ feedback information corresponding to the directly connected data.
  • the method further includes:
  • a data transmission apparatus for direct communication which is used in a first terminal, and the apparatus includes:
  • the sending module is configured to send the directly connected HARQ feedback information and the uplink information within the target time unit, and the direct connected HARQ feedback information and the uplink information satisfy a predetermined timing relationship, within the target time unit Sending the directly connected HARQ feedback information and the uplink information to the access network device on the uplink channel of the same physical layer;
  • the directly connected HARQ feedback information is used to indicate a receiving state corresponding to the directly connected data
  • the directly connected data is physical layer data sent by the first terminal to the second terminal through the directly connected link.
  • the uplink information includes at least one of scheduling request SR, feedback response information ACK/NACK, channel state information CSI, channel quality indicator CQI, and uplink service data.
  • the predetermined timing relationship includes:
  • the first moment is earlier than the second moment, and the absolute value of the difference between the first moment and the second moment is greater than the predetermined processing duration;
  • the first time is the end transmission time of the directly connected HARQ feedback information in the PSFCH
  • the second time is the start transmission time of the uplink information in the physical layer uplink channel.
  • the predetermined processing time includes:
  • the first constant constant or,
  • the predefined duration of the communication protocol or,
  • the pre-configured duration of the access network device is not limited
  • the device further includes: a receiving module and a processing module;
  • the receiving module is configured to receive a DCI sent by the access network device to schedule the direct connection data transmission, and the DCI is used to indicate a starting transmission time of the direct connection HARQ feedback information, the The starting transmission time of the directly connected HARQ feedback information is the time when the second terminal starts to send the directly connected HARQ feedback information to the first terminal;
  • the processing module is configured to obtain a predetermined transmission duration of the directly connected HARQ feedback information; and determine the first time according to the starting time of the directly connected HARQ feedback information and the predetermined transmission time.
  • the device further includes: a receiving module and a processing module;
  • the receiving module is configured to receive a DCI sent by the access network device for scheduling the direct connection data transmission, the DCI is used to indicate an end transmission time of the direct connection data, the direct connection data Is the moment when the second terminal receives the directly connected data sent by the first terminal;
  • the processing module is configured to obtain a predetermined time interval between the transmission of the directly-connected data and the transmission of the directly-connected HARQ feedback information corresponding to the directly-connected data;
  • the predetermined time interval determines the first moment.
  • the predetermined time interval includes:
  • the predefined time interval of the communication protocol or,
  • the pre-configured time interval of the access network device is the pre-configured time interval of the access network device.
  • the predetermined time interval includes:
  • the maximum time interval between the transmission of the directly connected data reported by the first terminal and the transmission of the directly connected HARQ feedback information corresponding to the directly connected data is the maximum time interval between the transmission of the directly connected data reported by the first terminal and the transmission of the directly connected HARQ feedback information corresponding to the directly connected data.
  • the device further includes:
  • the sending module is further configured to report the predetermined time interval to the access network device by the first terminal; or,
  • the first terminal receives downlink signaling sent by the access network device, and feeds back the predetermined time interval to the access network device according to the downlink signaling.
  • a data transmission apparatus for direct communication which is used in an access network device, and the apparatus includes:
  • the receiving module is further configured to receive the direct connection HARQ feedback information and uplink information sent by the first terminal within a target time unit, and the direct connection HARQ feedback information and the uplink information satisfy a predetermined timing relationship.
  • the directly connected HARQ feedback information is used to indicate a receiving state corresponding to the directly connected data
  • the directly connected data is physical layer data sent by the first terminal to the second terminal through the directly connected link.
  • the uplink information includes at least one of scheduling request SR, feedback response information ACK/NACK, channel state information CSI, channel quality indicator CQI, and uplink service data.
  • the predetermined timing relationship includes:
  • the first moment is earlier than the second moment, and the absolute value of the difference between the first moment and the second moment is greater than a predetermined processing time
  • the first time is the end transmission time of the directly connected HARQ feedback information in the PSFCH
  • the second time is the start transmission time of the uplink information in the physical layer uplink channel.
  • the predetermined processing time includes:
  • the first constant constant or,
  • the predefined duration of the communication protocol or,
  • the pre-configured duration of the access network device is not limited
  • the device further includes: a sending module and a processing module;
  • the sending module is configured to send DCI for scheduling the direct connection data transmission to the first terminal, the DCI is used to indicate a starting transmission time of the direct connection HARQ feedback information, the direct connection
  • the initial transmission moment of HARQ feedback information is the moment when the second terminal starts sending the directly connected HARQ feedback information to the first terminal;
  • the processing module is configured to obtain a predetermined transmission duration of the directly connected HARQ feedback information; and determine the first time according to the starting time of the directly connected HARQ feedback information and the predetermined transmission time.
  • the device further includes: a sending module and a processing module;
  • the sending module is configured to send a DCI for scheduling the direct connection data transmission to the first terminal, the DCI is used to indicate an end transmission time of the direct connection data, and an end of the direct connection data
  • the transmission time is the time when the second terminal receives the directly connected data sent by the first terminal;
  • the processing module is configured to obtain a predetermined time interval between the transmission of the directly-connected data and the transmission of the directly-connected HARQ feedback information corresponding to the directly-connected data;
  • the predetermined time interval determines the first moment.
  • the predetermined time interval includes:
  • the predefined time interval of the communication protocol or,
  • the pre-configured time interval of the access network device is the pre-configured time interval of the access network device.
  • the predetermined time interval includes:
  • the maximum time interval between the transmission of the directly connected data reported by the first terminal and the transmission of the directly connected HARQ feedback information corresponding to the directly connected data is the maximum time interval between the transmission of the directly connected data reported by the first terminal and the transmission of the directly connected HARQ feedback information corresponding to the directly connected data.
  • the device further includes:
  • the receiving module is further configured to receive the predetermined time interval between the direct connection data transmission reported by the first terminal and the direct connection HARQ feedback information transmission corresponding to the direct connection data; or,
  • a terminal includes:
  • a transceiver connected to the processor
  • Memory for storing processor executable instructions
  • the processor is configured to load and execute the executable instructions to implement the steps of the data transmission method of direct connection communication as described in the first aspect or any possible implementation manner of the first aspect.
  • an access network device includes:
  • a transceiver connected to the processor
  • Memory for storing processor executable instructions
  • the processor is configured to load and execute the executable instructions to implement the steps of the data transmission method of the direct communication as described in the second aspect or any possible implementation manner of the second aspect.
  • a data transmission system for direct communication includes a terminal and an access network device;
  • the terminal is the data transmission device according to the third aspect or any possible implementation manner of the third aspect;
  • the access network is the data transmission device described in the fourth aspect or any possible implementation manner of the fourth aspect.
  • a data transmission system for direct communication includes a terminal and an access network device;
  • the data transmission device according to the fifth aspect of the terminal.
  • the access network is the data transmission device according to the sixth aspect.
  • a computer-readable storage medium in which at least one instruction, at least one program, code set, or instruction set is stored, and the at least one instruction, The at least one program, the code set or the instruction set is loaded and executed by the processor to implement the data transmission method of the direct connection communication described in the first aspect or any possible implementation manner of the first aspect Steps, or the steps of implementing the data transmission method of direct connection communication as described in any possible implementation manner of the second aspect or the first aspect.
  • the direct connection HARQ feedback information and the uplink information need to be sent within the target time unit
  • the direct connection HARQ feedback information and the uplink information at least satisfy the predetermined timing relationship to ensure that the first terminal can handle the uplink multiplex transmission in time, that is, the first terminal Use the same physical layer uplink channel in the target time unit to report, avoid the problem of resource conflict caused by the overlap of direct connection HARQ feedback and other uplink data transmission in the related art in the time domain, and fully ensure the information in the direct connection communication scenario
  • FIG. 1 is a schematic diagram of a network architecture to which an embodiment of the present disclosure may be applicable;
  • Fig. 2 is a flowchart of a data transmission method for direct communication according to an exemplary embodiment
  • Fig. 3 is a schematic diagram showing data transmission involved in a data transmission method of direct communication according to another exemplary embodiment
  • Fig. 4 is a flowchart of a data transmission method for direct communication according to another exemplary embodiment
  • Fig. 5 is a flow chart showing a data transmission method of direct connection communication according to another exemplary embodiment
  • Fig. 6 is a schematic diagram of data transmission involved in a data transmission method for direct communication according to another exemplary embodiment
  • Fig. 7 is a schematic diagram showing data transmission involved in a data transmission method of direct communication according to another exemplary embodiment
  • Fig. 8 is a block diagram of a data transmission device for direct communication according to an exemplary embodiment
  • Fig. 9 is a block diagram of a data transmission device for direct communication according to another exemplary embodiment.
  • Fig. 10 is a block diagram of a terminal according to an exemplary embodiment
  • Fig. 11 is a block diagram of an access network device according to an exemplary embodiment.
  • the network architecture and business scenarios described in the embodiments of the present disclosure are to more clearly explain the technical solutions of the embodiments of the present disclosure, and do not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. And the emergence of new business scenarios, the technical solutions provided by the embodiments of the present disclosure are also applicable to similar technical problems.
  • FIG. 1 shows a schematic diagram of a network architecture to which the embodiments of the present disclosure may be applicable.
  • the network architecture may be a network architecture of a C-V2X system.
  • C refers to cellular (English: Cellular)
  • C-V2X system is based on 3G, 4G or 5G cellular network communication system evolution formed by the vehicle-mounted wireless communication system.
  • the network architecture may include: a core network 11, an access network 12, a terminal 13, and a vehicle 14.
  • the core network 11 includes several core network devices.
  • the function of the core network equipment is mainly to provide user connections, manage users, and complete bearers for services, as an interface provided by the bearer network to an external network.
  • the core network of the Long Term Evolution (LTE) system may include Mobility Management Entity (MME), Serving Gateway (Serving Gateway, S-GW), PDN Gateway (PDN Gateway, P-GW) Other equipment.
  • MME Mobility Management Entity
  • S-GW Serving Gateway
  • PDN Gateway PDN Gateway
  • the core network of the 5G NR system can include access and mobility management (Access and Mobility Management Function, AMF) entities, user plane function (User Plane Function, UPF) entities, and session management function (Session Management Function, SMF) entities Other equipment.
  • AMF Access and Mobility Management Function
  • UPF User Plane Function
  • Session Management Function Session Management Function
  • the access network 12 includes several access network devices 120.
  • the access network device 120 and the core network device 110 communicate with each other through some interface technology, such as the S1 interface in the LTE system and the NG interface in the 5G NR system.
  • the access network device 120 may be a base station (Base), which is a device deployed in the access network to provide a wireless communication function for the terminal.
  • the base station may include various forms of macro base stations, micro base stations, relay stations, access points, and so on.
  • the names of devices with base station functions may be different.
  • eNodeB or eNB in the LTE system, it is called eNodeB or eNB; in the 5G NR system, it is called gNodeB or gNB.
  • the name "base station” may change.
  • the above devices that provide wireless communication functions for terminals are collectively referred to as access network equipment.
  • the terminal 13 may include various handheld devices with wireless communication functions, in-vehicle devices, wearable devices, computing devices, or other processing devices connected to a wireless modem, as well as various forms of user equipment (User Equipment, UE), mobile stations ( Mobile Station, MS), terminal (English: terminal) and so on. For convenience of description, the devices mentioned above are collectively referred to as terminals.
  • the access network device 120 and the terminal 13 communicate with each other through a certain air interface technology, such as a Uu interface.
  • the vehicle 14 may be an autonomous vehicle or a non-autonomous vehicle.
  • the vehicle 14 is equipped with a vehicle-mounted device, and the vehicle 14 communicates with other vehicles, terminals 13 or other devices through the vehicle-mounted device, such as a road side unit (RSU).
  • the in-vehicle device may also be called an in-vehicle terminal, an in-vehicle communication device, or other names, which are not limited in the embodiments of the present disclosure.
  • the vehicle-mounted device may be a device integrated in a telematics box (T-BOX) or a device separated from the vehicle body.
  • T-BOX telematics box
  • the vehicle-mounted device may be assembled in the vehicle 14 before the vehicle 14 is shipped, or may be assembled in the vehicle 14 after the vehicle 14 is shipped.
  • the vehicle-mounted device of the vehicle 14 and other devices can communicate with each other through a directly connected communication interface (such as a PC5 interface). Accordingly, the communication link established based on the directly connected communication interface It can be called a direct link or a sidelink.
  • the vehicle-mounted device of the vehicle 14 and other devices can also be transferred through the access network 12 and the core network 11, that is, the communication link between the terminal 13 and the access network device 120 in the original cellular network is used for communication .
  • communication based on direct communication interface has the characteristics of short time delay and low overhead, and is suitable for communication between vehicle-mounted equipment and other peripheral devices with close geographical location.
  • the above network architecture shown in FIG. 1 can implement V2X service scenarios.
  • the above network architecture may also include devices such as RSU, V2X application server, and V2X control function node, which are not limited in the embodiments of the present disclosure.
  • the technical solutions described in the embodiments of the present disclosure may be applicable to the 5G NR system, and may also be applicable to the subsequent evolution system of the 5G NR system.
  • a data transmission method of direct connection communication is provided to solve the problem of resource conflicts.
  • the first terminal and the second terminal are V2X service scenarios, and are devices at both ends of the direct connection communication, and the first terminal and the second terminal may be established through a direct connection communication interface (such as a PC5 interface) Side link, and then perform user plane data and control plane signaling interaction through this side link.
  • the first terminal may be the vehicle-mounted device of the vehicle 14 in the network architecture shown in FIG. 1, and the second terminal may be the vehicle-mounted device of another vehicle, or may be the terminal 13 or the RSU.
  • the first terminal may be the terminal 13 in the network architecture shown in FIG. 1, and the second terminal may be another terminal, or may be an on-board device or RSU of the vehicle 14.
  • the same device such as the same in-vehicle device or the same terminal
  • it can be used as the first terminal in some scenarios and can also be used as the second terminal in other scenarios.
  • the first terminal is also referred to as a user equipment of a directly connected communication transmitting end
  • the second terminal is also referred to as a user equipment of a directly connected communication receiving end.
  • Fig. 2 is a flowchart of a data transmission method for direct communication according to an exemplary embodiment. This method can be applied to the network architecture shown in FIG. 1. The method may include the following steps.
  • step 201 the access network device sends DCI to the first terminal, and the DCI carries data transmission parameters.
  • the access network device sends DCI to the first terminal through the downlink channel.
  • the DCI is a DCI used for scheduling direct data transmission.
  • the downlink channel includes a physical downlink control channel (Physical Downlink Control Channel, PDCCH).
  • PDCCH Physical Downlink Control Channel
  • the data transmission parameters are used to indicate time-frequency resources and/or modulation and coding methods.
  • step 202 the first terminal sends direct connection data to the second terminal through the direct connection link according to the data transmission parameters.
  • the first terminal receives the DCI sent by the access network device through the downlink channel, and according to the time-frequency resources and/or modulation and coding methods indicated by the data transmission parameters in the DCI, sends the direct terminal to the second terminal through the direct link Even the data.
  • the directly connected data is physical layer data sent by the first terminal to the second terminal through the directly connected link.
  • the first terminal uses the target time-frequency resource of the direct connection link to send the direct connection data to the second terminal.
  • the target time-frequency resource is a predefined or pre-configured time-frequency resource.
  • the first terminal may also send control information to the second terminal before the direct connection data is sent or at the same time as the direct connection data is sent, where the control information is used to indicate information about receiving physical layer data.
  • the receiving related information includes: a time domain position and/or a frequency domain position of a target time-frequency resource used to carry physical layer data.
  • the receiving related information further includes: modulation and coding mode (Modulation and Coding Scheme, MCS) of physical layer data, hybrid automatic repeat request process identification (Hybrid ARQ Process Number, HARQ-ID), and new data indication ( New-Data Indicator (NDI) and other information.
  • MCS Modulation and Coding Scheme
  • HARQ-ID hybrid automatic repeat request process identification
  • NDI New-Data Indicator
  • step 203 the second terminal feeds back the directly connected HARQ feedback information to the first terminal.
  • the second terminal receives the directly connected data sent by the first terminal.
  • the second terminal receives the direct connection data sent by the first terminal using the target time-frequency resource of the direct connection link.
  • the second terminal feeds back the directly connected HARQ feedback information to the first terminal, and the directly connected HARQ feedback information includes HARQ feedback bits corresponding to at least one directly connected data transmission.
  • the number of HARQ feedback bits corresponding to a direct connection data transmission is 1 bit (English: bit) or 2 bits.
  • the directly connected HARQ feedback information is used to indicate the reception status corresponding to the directly connected data.
  • the reception status corresponding to the directly connected data includes: an acknowledged reception status (Acknowledgement, ACK) or a non-acknowledged reception status (Non-Acknowledgement, NACK).
  • ACK is used to indicate that the directly connected data is correctly received by the second terminal.
  • NACK includes an unreceived state and/or an incorrectly received state.
  • the unreceived state is used to indicate that the directly connected data is not received by the second terminal;
  • the incorrectly received state is used to indicate that although the directly connected data is received by the second terminal, the directly connected data received by the second terminal is transmitted with the first terminal
  • the directly connected data is different, that is, the wrong directly connected data is received.
  • the second terminal After receiving the directly connected data, the second terminal processes the received directly connected data, for example, the second terminal performs demodulation and decoding on the directly connected data. During the processing, the second terminal will determine the reception status of the directly connected data.
  • the second terminal sends direct connection HARQ feedback information to the first terminal through the direct connection channel.
  • the direct connection channel is PSFCH.
  • step 204 the first terminal receives direct HARQ feedback information fed back by the second terminal.
  • the first terminal receives the directly connected HARQ feedback information sent by the second terminal through the PSFCH.
  • the direct connection communication method between the first terminal and the second terminal is a direct connection communication method scheduled based on the access network device. That is, the first terminal performs data transmission based on the scheduling of the access network device.
  • the direct connection HARQ feedback information corresponding to the direct connection data needs to be transmitted from the second terminal back to the access network device to facilitate access
  • the network access device schedules data retransmission or new data transmission.
  • the directly connected HARQ feedback information needs to be transmitted from the second terminal to the first terminal first, and then The first terminal reports to the access network device.
  • step 205 when direct HARQ feedback information and uplink information need to be sent within the target time unit, and the direct HARQ feedback information and uplink information satisfy a predetermined timing relationship, the first terminal uplinks on the same physical layer within the target time unit Send directly connected HARQ feedback information and uplink information to the access network device on the channel.
  • the first terminal receives the directly connected HARQ feedback information sent by the second terminal, and before the first terminal reports the directly connected HARQ feedback information to the access network device, the first terminal needs to perform the directly connected HARQ feedback information Processing, the processing process of the first terminal will take some time.
  • the first terminal cannot multiplex the uplink information with the directly connected HARQ feedback or the first terminal needs to exit the existing transmission process to re-multiplex, which will greatly Increase chip complexity.
  • the direct connection HARQ feedback information and the uplink information need to be sent in the target time unit, the direct connection HARQ feedback information and the uplink information satisfy at least a predetermined timing relationship to ensure that the first terminal can process the uplink multiplexed transmission in time.
  • the direct connection HARQ feedback information is used to indicate the reception status corresponding to the direct connection data, and the direct connection data is physical layer data sent by the first terminal to the second terminal through the direct connection link.
  • the uplink information includes uplink control information (Uplink Control Information, UCI) and/or uplink service data sent by the first terminal to the access network device.
  • uplink control information Uplink Control Information, UCI
  • UCI Uplink Control Information
  • UCI includes at least one of the following information:
  • Scheduling Request (Scheduling Request, SR);
  • Channel State Information Channel State Information
  • Channel Quality Indicator Channel Quality Indicator, CQI
  • the predetermined timing relationship is a timing relationship between pre-configured or predefined direct-connected HARQ feedback information and uplink information.
  • the target time unit refers to a time unit corresponding to when the terminal device needs to send uplink HARQ feedback bits and direct HARQ feedback information.
  • the target time unit is a symbol (English: symbol), b symbol group (English: symbol), c time slot (English: slot) or d subframe (English: subframe), a, b , C and d are positive integers, which are not limited in this embodiment.
  • the first terminal receives the configuration information sent by the access network device, and determines the physical resource of the same physical layer uplink channel in the target time unit according to the configuration information.
  • the physical layer uplink channel is an uplink channel used to send uplink HARQ feedback bits to the access network device.
  • the physical layer uplink channel is an uplink channel based on the first communication protocol or the second communication protocol.
  • the first communication protocol includes the LTE protocol
  • the second communication protocol includes the NR protocol.
  • the physical layer uplink channel is PUCCH.
  • the PUCCH channel format is any one of PUCCH format 1, PUCCH format 1a, PUCCH format 1b, PUCCH format 2, PUCUC format 2a, PUCCH format 2b, PUCCH format 3, PUCCH format 4 and PUCCH format 5.
  • the first terminal sends the directly connected HARQ feedback information and the uplink information to the access network device in the physical resources of the same physical layer uplink channel in the target time unit.
  • the access network device receives the directly connected HARQ feedback information and uplink information sent by the first terminal on the same physical layer uplink channel within the target time unit.
  • the access network device receives Directly connected HARQ feedback information and uplink information sent on the same PUCCH in a time unit.
  • the access network device needs to perform the same timing judgment as the first terminal, that is, judge whether the directly connected HARQ feedback information and the uplink information satisfy the predetermined timing relationship.
  • the timing judgment process of the access network device may be analogized with reference to the relevant details of the timing judgment process of the first terminal, which will not be repeated here.
  • the direct connection HARQ feedback information and the uplink information need to be sent within the target time unit
  • the direct connection HARQ feedback information and the uplink information at least satisfy the predetermined timing relationship to ensure that the first terminal can process the uplink reply in time.
  • Transmission that is, the first terminal can use the same physical layer uplink channel in the target time unit to report, avoiding the problem of resource conflicts caused by the overlap of directly connected HARQ feedback and other uplink data transmission in the time domain in the related art, fully ensuring The success rate of information transmission and reception in the direct connection communication scenario is improved, and it helps to improve the efficiency of data transmission.
  • the above-mentioned uplink multiplexing transmission of directly connected HARQ feedback information and uplink information at least satisfies a predetermined timing relationship.
  • the predetermined timing relationship includes: the first time is earlier than the second time, and the absolute value of the difference between the first time and the second time is greater than the predetermined processing duration;
  • the first moment is the end transmission moment of the directly connected HARQ feedback information in the PSFCH, and the second moment is the beginning transmission moment of the uplink information in the physical layer uplink channel.
  • the first moment is the end moment when the directly connected HARQ feedback information is transmitted in the PSFCH, that is, the moment when the first terminal receives the directly connected HARQ feedback information sent by the second terminal.
  • the second moment is the starting moment when the uplink information is transmitted in the uplink channel of the physical layer, that is, the moment when the first terminal starts to send the uplink information to the access network device.
  • the scheduled processing time includes:
  • the first constant constant or,
  • the predefined duration of the communication protocol or,
  • the pre-configured duration of the access network equipment is the pre-configured duration of the access network equipment.
  • the predetermined processing time is a predetermined fixed time length of the communication protocol, for example, the predetermined processing time is 1 orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) time domain symbol length, or the predetermined processing time is 15KHz One OFDM time-domain symbol length with subcarrier spacing.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the first terminal receives the DCI sent by the access network device for scheduling direct connection data transmission, and performs direct connection data transmission to the second terminal according to the data transmission parameters in the DCI ,
  • the first terminal receives the directly connected HARQ feedback information transmitted by the second terminal through the PSFCH.
  • the first terminal determines that the first time is T0 and the predetermined processing duration is D0.
  • the first terminal needs to send the directly connected HARQ feedback information within the target time unit
  • the uplink information after the initial transmission time is after T0+D0
  • the first terminal sends directly connected HARQ feedback information and uplink information to the access network device on the same physical layer uplink channel in the target time unit.
  • the above step 205 includes the following steps: the first terminal determines the first moment, when it is necessary to send directly connected HARQ feedback information and uplink information within the target time unit, the first moment is earlier than the starting transmission moment of the uplink information And when the absolute value of the difference between the end transmission time and the start transmission time is greater than the predetermined processing duration, the first terminal sends the directly connected HARQ feedback information and uplink to the access network device on the same physical layer uplink channel in the target time unit information.
  • the manner in which the first terminal determines the first moment includes but is not limited to the following possible implementation manners.
  • step 401 the access network device sends a DCI for scheduling direct connection data transmission to the first terminal, and the DCI is used to indicate the start transmission time of the direct connection HARQ feedback information.
  • the starting transmission time of the directly connected HARQ feedback information is the time when the second terminal starts to send the directly connected HARQ feedback information to the first terminal.
  • the start transmission time of the directly connected HARQ feedback information is the start time of the transmission of the directly connected HARQ feedback information on the PSFCH.
  • step 402 the first terminal receives the DCI sent by the access network device for scheduling direct connection data transmission.
  • the first terminal receives the DCI sent by the access network device, where the DCI is used to indicate the starting transmission moment of the directly connected HARQ feedback information.
  • step 403 the first terminal obtains the predetermined transmission duration of the directly connected HARQ feedback information.
  • the first terminal acquires the predetermined transmission duration of the directly connected HARQ feedback information.
  • the predetermined transmission duration is a predetermined or pre-configured duration of directly connected HARQ feedback information transmitted on the PSFCH.
  • step 404 the first terminal determines the first time according to the start time of the directly connected HARQ feedback information and the predetermined transmission duration.
  • the first terminal determines the sum of the start time of the directly connected HARQ feedback information and the predetermined transmission duration as the first time.
  • the first moment is the moment when the directly connected HARQ feedback information ends in the PSFCH.
  • the access network device needs to perform the same timing judgment as the first terminal, that is, the access network device is sending DCI used to schedule the direct connection data transmission to the first terminal, and the DCI is used to indicate the start of direct connection HARQ feedback information.
  • the access network device acquires the predetermined transmission duration of the directly connected HARQ feedback information; the first time is determined according to the initial transmission time of the directly connected HARQ feedback information and the predetermined transmission time.
  • the process of determining the first moment by the access network device according to the start moment of the directly connected HARQ feedback information and the predetermined transmission duration may be analogous to the process of determining the first moment with reference to the first terminal, and is not described here Repeat again.
  • FIG. 5 it includes but is not limited to the following steps:
  • step 501 the access network device sends DCI for scheduling direct connection data transmission to the first terminal, and the DCI is used to indicate the end transmission time of the direct connection data.
  • the end transmission time of the directly connected data is the time when the second terminal receives the directly connected data sent by the first terminal.
  • the end transmission time of the directly connected data is the end time of the transmission of the directly connected data on the directly connected channel.
  • step 502 the first terminal receives the DCI sent by the access network device for scheduling direct connection data transmission.
  • the first terminal receives the DCI sent by the access network device to schedule the direct connection data transmission, and determines the end transmission time of the direct connection data according to the DCI.
  • step 503 the first terminal obtains a predetermined time interval between the direct connection data transmission and the direct connection HARQ feedback information transmission corresponding to the direct connection data.
  • the predetermined time interval is a time interval between the end transmission time of the directly connected data and the start transmission time of the corresponding directly connected HARQ feedback information.
  • the predetermined time interval may be determined by a static or semi-static method such as protocol definition or access network device configuration, or may be determined by the first terminal or the second terminal and reported to the access network device.
  • the predetermined time interval includes:
  • the predefined time interval of the communication protocol or,
  • the pre-configured interval of access network equipment is the pre-configured interval of access network equipment.
  • the predetermined time interval includes:
  • the maximum time interval between the transmission of the directly connected data reported by the first terminal and the transmission of the directly connected HARQ feedback information corresponding to the directly connected data is the maximum time interval between the transmission of the directly connected data reported by the first terminal and the transmission of the directly connected HARQ feedback information corresponding to the directly connected data.
  • the timing of the terminal reporting the predetermined time interval includes but is not limited to the following two possible Method to realize.
  • the first terminal actively reports the predetermined time interval to the access network device. That is, the first terminal reports the predetermined time interval to the access network device.
  • the predetermined time interval is a predetermined time interval between the direct connection data transmission and the direct connection HARQ feedback information transmission corresponding to the direct connection data.
  • the first terminal receives downlink signaling sent by the access network device, and the downlink signaling is used to instruct the first terminal to feed back a predetermined time interval to the access network device.
  • the first feeds back a predetermined time interval to the access network device according to downlink signaling, and correspondingly, the access network device receives the predetermined time interval.
  • step 504 the first terminal determines the first time according to the end transmission time of the directly connected data and a predetermined time interval.
  • the first moment is the end moment when the directly connected HARQ feedback information is transmitted on the PSFCH.
  • the first terminal determines the sum of the end transmission time of the directly connected data and the predetermined time interval as the first time.
  • the access network device needs to perform the same timing judgment as the first terminal, that is, the access network device sends the DCI used to schedule the direct connection data transmission to the first terminal, and the DCI is used to indicate the end transmission time of the direct connection data, and then obtain Direct connection data transmission
  • the predetermined time interval between direct connection HARQ feedback information transmission corresponding to the direct connection data; the first time is determined according to the end transmission time of the direct connection data and the predetermined time interval.
  • the access network device determines the first moment according to the end transmission time of the directly connected data and the predetermined time interval. The process of the moment will not be repeated here.
  • the first terminal receives the DCI sent by the access network device to schedule the direct connection data transmission.
  • the DCI is used to indicate the end transmission time T1 of the direct connection data.
  • the terminal performs direct connection data transmission to the second terminal according to the scheduling of the access network device, and the first terminal receives direct connection HARQ feedback information transmitted by the second terminal through the PSFCH.
  • the first terminal obtains a predetermined time interval C0 predefined by the communication protocol, and determines the first time T0 according to the sum of the end transmission time T1 of the directly connected data and the predetermined time interval C0.
  • the first terminal receives the DCI sent by the access network device to schedule the direct connection data transmission.
  • the DCI is used to indicate the end transmission time T1 of the direct connection data.
  • a terminal performs direct connection data transmission to the second terminal according to the scheduling of the access network device, and the first terminal receives direct connection HARQ feedback information transmitted by the second terminal through the PSFCH.
  • the first terminal obtains the predetermined time interval C1 determined independently, and the first terminal determines the first time T0 according to the sum of the end transmission time T1 of the directly connected data and the predetermined time interval C1.
  • the embodiment of the present disclosure also determines the first time through the first terminal.
  • the first time is earlier than the start transmission time of the uplink information and ends
  • the first terminal sends directly connected HARQ feedback information and uplink information to the access network device on the same physical layer uplink channel within the target time unit; It avoids the situation that some uplink information is just generated when the directly connected HARQ feedback information is just generated when the uplink channel starts to be transmitted, resulting in the first terminal being unable to multiplex or exiting the existing transmission process to re-multiplex, which simplifies the chip complexity, It further ensures that the first terminal can process the uplink multiplex transmission in time.
  • Fig. 8 is a block diagram of a data transmission device for direct communication according to an exemplary embodiment.
  • the device has the function of realizing the above-mentioned method example on the first terminal side, and the function may be implemented by hardware, or may be implemented by hardware executing corresponding software.
  • the device 800 may include a receiving module 810, a processing module 820, and a sending module 830.
  • the sending module 830 is configured to send the directly connected HARQ feedback information and the uplink information in the target time unit, and when the directly connected HARQ feedback information and the uplink information satisfy the predetermined timing relationship, the same physical layer uplink channel in the target time unit Send directly connected HARQ feedback information and uplink information to the access network device;
  • the direct connection HARQ feedback information is used to indicate the reception status corresponding to the direct connection data, and the direct connection data is physical layer data sent by the first terminal to the second terminal through the direct connection link.
  • the uplink information includes at least one of scheduling request SR, feedback response information ACK/NACK, channel state information CSI, channel quality indicator CQI, and uplink service data.
  • the predetermined timing relationship includes:
  • the first moment is earlier than the second moment, and the absolute value of the difference between the first moment and the second moment is greater than the predetermined processing duration;
  • the first time is the end transmission time of the directly connected HARQ feedback information in the PSFCH
  • the second time is the start transmission time of the uplink information in the physical layer uplink channel.
  • the scheduled processing time includes:
  • the first constant constant or,
  • the predefined duration of the communication protocol or,
  • the pre-configured duration of the access network equipment is the pre-configured duration of the access network equipment.
  • the receiving module 810 is configured to receive the DCI sent by the access network device to schedule the direct connection data transmission, the DCI is used to indicate the starting transmission time of the direct connection HARQ feedback information, and the start of the direct connection HARQ feedback information
  • the initial transmission moment is the moment when the second terminal starts sending direct HARQ feedback information to the first terminal;
  • the processing module 820 is configured to obtain the predetermined transmission duration of the directly connected HARQ feedback information; and determine the first time according to the start time and the predetermined transmission duration of the directly connected HARQ feedback information.
  • the receiving module 810 is configured to receive the DCI sent by the access network device for scheduling direct connection data transmission, and the DCI is used to indicate the end transmission time of the direct connection data, and the end transmission time of the direct connection data is the second The moment when the terminal receives the directly connected data sent by the first terminal;
  • the processing module 820 is configured to obtain a predetermined time interval between direct connection data transmission and direct connection HARQ feedback information transmission corresponding to the direct connection data; and determine the first time according to the end transmission time of the direct connection data and the predetermined time interval.
  • the predetermined time interval includes:
  • the predefined time interval of the communication protocol or,
  • the pre-configured interval of access network equipment is the pre-configured interval of access network equipment.
  • the predetermined time interval includes:
  • the maximum time interval between the transmission of the directly connected data reported by the first terminal and the transmission of the directly connected HARQ feedback information corresponding to the directly connected data is the maximum time interval between the transmission of the directly connected data reported by the first terminal and the transmission of the directly connected HARQ feedback information corresponding to the directly connected data.
  • the device further includes:
  • the sending module 830 is further configured to report the first terminal to the access network device at a predetermined time interval; or,
  • the first terminal receives the downlink signaling sent by the access network device, and feeds back the predetermined time interval to the access network device according to the downlink signaling.
  • the direct connection HARQ feedback information and the uplink information need to be sent within the target time unit
  • the direct connection HARQ feedback information and the uplink information at least satisfy the predetermined timing relationship to ensure that the first terminal can process the uplink reply in time.
  • Transmission that is, the first terminal can use the same physical layer uplink channel in the target time unit to report, avoiding the problem of resource conflicts caused by the overlap of directly connected HARQ feedback and other uplink data transmission in the time domain in the related art, fully ensuring The success rate of information transmission and reception in the direct connection communication scenario is improved, and it helps to improve the efficiency of data transmission.
  • Fig. 9 is a block diagram of a data transmission device for direct communication according to another exemplary embodiment.
  • the device has the function of implementing the above method example on the access network device side.
  • the function may be implemented by hardware, or may be implemented by hardware executing corresponding software.
  • the apparatus 900 may include a receiving module 910, a processing module 920, and a sending module 930.
  • the receiving module 910 is further configured to receive the first terminal when the direct connection HARQ feedback information and the uplink information sent by the first terminal need to be received within the target time unit, and the direct connection HARQ feedback information and the uplink information satisfy the predetermined timing relationship. Directly connected HARQ feedback information and uplink information sent on the same physical layer uplink channel in the target time unit;
  • the direct connection HARQ feedback information is used to indicate the reception status corresponding to the direct connection data, and the direct connection data is physical layer data sent by the first terminal to the second terminal through the direct connection link.
  • the uplink information includes at least one of scheduling request SR, feedback response information ACK/NACK, channel state information CSI, channel quality indicator CQI, and uplink service data.
  • the predetermined timing relationship includes:
  • the first moment is earlier than the second moment, and the absolute value of the difference between the first moment and the second moment is greater than a predetermined processing time
  • the first time is the end transmission time of the directly connected HARQ feedback information in the PSFCH
  • the second time is the start transmission time of the uplink information in the physical layer uplink channel.
  • the scheduled processing time includes:
  • the first constant constant or,
  • the predefined duration of the communication protocol or,
  • the pre-configured duration of the access network equipment is the pre-configured duration of the access network equipment.
  • the sending module 930 is configured to send DCI for scheduling direct connection data transmission to the first terminal, the DCI is used to indicate the start transmission time of the direct connection HARQ feedback information, and the start transmission of the direct connection HARQ feedback information Time is the time when the second terminal starts to send the directly connected HARQ feedback information to the first terminal;
  • the processing module 920 is configured to obtain the predetermined transmission duration of the directly connected HARQ feedback information; and determine the first time according to the starting time and the predetermined transmission duration of the directly connected HARQ feedback information.
  • the sending module 930 is configured to send DCI used to schedule the direct connection data transmission to the first terminal, the DCI is used to indicate the end transmission time of the direct connection data, and the end transmission time of the direct connection data is received by the second terminal To the time of the directly connected data sent by the first terminal;
  • the processing module 920 is configured to obtain a predetermined time interval between direct connection data transmission and direct connection HARQ feedback information transmission corresponding to the direct connection data; and determine the first time according to the end transmission time of the direct connection data and the predetermined time interval.
  • the predetermined time interval includes:
  • the predefined time interval of the communication protocol or,
  • the pre-configured interval of access network equipment is the pre-configured interval of access network equipment.
  • the predetermined time interval includes:
  • the maximum time interval between the transmission of the directly connected data reported by the first terminal and the transmission of the directly connected HARQ feedback information corresponding to the directly connected data is the maximum time interval between the transmission of the directly connected data reported by the first terminal and the transmission of the directly connected HARQ feedback information corresponding to the directly connected data.
  • the receiving module 910 is further configured to receive a predetermined time interval between the direct connection data transmission reported by the first terminal and the direct connection HARQ feedback information transmission corresponding to the direct connection data; or,
  • the downlink signaling is used to instruct the first terminal to feed back a predetermined time interval to the access network device; receive the predetermined time interval fed back by the first terminal.
  • the device provided in the above embodiment realizes its function, it is only exemplified by the division of the above functional modules.
  • the above functions can be allocated by different functional modules according to actual needs. That is, the content structure of the device is divided into different functional modules to complete all or part of the functions described above.
  • the devices include hardware structures and/or software modules corresponding to performing each function.
  • the embodiments of the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is performed by hardware or computer software driven hardware depends on the specific application of the technical solution and design constraints. A person skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the technical solutions of the embodiments of the present disclosure.
  • Fig. 10 is a block diagram of a terminal 1000 according to an exemplary embodiment.
  • the terminal 1000 may be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, or the like.
  • the terminal 1000 may include one or more of the following components: a processing component 1002, a memory 1004, a power supply component 1006, a multimedia component 1008, an audio component 1010, an input/output (I/O) interface 1012, a sensor component 1014, ⁇ 1016 ⁇ Communication components 1016.
  • the processing component 1002 generally controls the overall operations of the terminal 1000, such as operations associated with display, telephone calls, data communication, camera operations, and recording operations.
  • the processing element 1002 may include one or more processors 1020 to execute instructions to complete all or part of the steps in the above method.
  • the processing component 1002 may include one or more modules to facilitate interaction between the processing component 1002 and other components.
  • the processing component 1002 may include a multimedia module to facilitate interaction between the multimedia component 1008 and the processing component 1002.
  • the memory 1004 is configured to store various types of data to support operation at the device 1000. Examples of these data include instructions for any application or method operating on the terminal 1000, contact data, phone book data, messages, pictures, videos, and so on.
  • the memory 1004 may be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable and removable Programmable read only memory (EPROM), programmable read only memory (PROM), read only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM erasable and removable Programmable read only memory
  • PROM programmable read only memory
  • ROM read only memory
  • magnetic memory flash memory
  • flash memory magnetic disk or optical disk.
  • the power component 1006 provides power to various components of the terminal 1000.
  • the power component 1006 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the terminal 1000.
  • the multimedia component 1008 includes a screen that provides an output interface between the terminal 1000 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touch, swipe, and gestures on the touch panel. The touch sensor may not only sense the boundary of the touch or sliding action, but also detect the duration and pressure related to the touch or sliding operation.
  • the multimedia component 1008 includes a front camera and/or a rear camera. When the device 1000 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data.
  • Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.
  • the audio component 1010 is configured to output and/or input audio signals.
  • the audio component 1010 includes a microphone (MIC), and when the terminal 1000 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode, the microphone is configured to receive an external audio signal.
  • the received audio signal may be further stored in the memory 1004 or sent via the communication component 1016.
  • the audio component 1010 further includes a speaker for outputting audio signals.
  • the I/O interface 1012 provides an interface between the processing component 1002 and a peripheral interface module.
  • the peripheral interface module may be a keyboard, a click wheel, or a button. These buttons may include, but are not limited to: home button, volume button, start button, and lock button.
  • the sensor assembly 1014 includes one or more sensors for providing the terminal 1000 with status assessment in various aspects.
  • the sensor component 1014 can detect the on/off state of the device 1000, and the relative positioning of the components, for example, the component is the display and keypad of the terminal 1000, and the sensor component 1014 can also detect the position change of the terminal 1000 or a component of the terminal 1000 The presence or absence of user contact with the terminal 1000, the orientation or acceleration/deceleration of the terminal 1000, and the temperature change of the terminal 1000.
  • the sensor assembly 1014 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact.
  • the sensor assembly 1014 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor assembly 1014 may further include an acceleration sensor, a gyro sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • the communication component 1016 is configured to facilitate wired or wireless communication between the terminal 1000 and other devices.
  • the terminal 1000 may access a wireless network based on a communication standard, such as WiFi, 2G, or 3G, or a combination thereof.
  • the communication part 1016 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 1016 further includes a near field communication (NFC) module to facilitate short-range communication.
  • NFC near field communication
  • the terminal 1000 may be one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor or other electronic component is implemented to perform the above method.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor or other electronic component is implemented to perform the above method.
  • non-transitory computer-readable storage medium including instructions, for example, a memory 1004 including instructions, which can be executed by the processor 1020 of the terminal 1000 to complete the above method.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, or the like.
  • a non-transitory computer-readable storage medium when instructions in the non-transitory computer storage medium are executed by a processor of a first terminal, enable the first terminal to execute the above-mentioned data transmission method.
  • Fig. 11 is a block diagram of an access network device 1100 according to an exemplary embodiment.
  • the access network device 1100 may include a processor 1101, a receiver 1102, a transmitter 1103, and a memory 1104.
  • the receiver 1102, the transmitter 1103, and the memory 1104 are connected to the processor 1101 through a bus, respectively.
  • the processor 1101 includes one or more processing cores, and the processor 1101 executes the method performed by the access network device in the transmission configuration method provided by the embodiment of the present disclosure by running software programs and modules.
  • the memory 1104 may be used to store software programs and modules. Specifically, the memory 1104 may store an operating system 11041 and an application program module 11042 required for at least one function.
  • the receiver 1102 is used to receive communication data sent by other devices, and the transmitter 1103 is used to send communication data to other devices.
  • An exemplary embodiment of the present disclosure also provides a data transmission system for direct communication, the data transmission system includes a terminal and an access network device;
  • the data transmission device provided by the terminal as shown in the embodiment shown in FIG. 8;
  • the access network is shown in the data transmission device provided in the embodiment shown in FIG. 9.
  • An exemplary embodiment of the present disclosure also provides a data transmission system for direct communication, the data transmission system includes a terminal and an access network device;
  • the terminal is as provided in the embodiment shown in FIG. 10;
  • the access network is shown in FIG. 11 as the access network device provided in the embodiment.
  • An exemplary embodiment of the present disclosure also provides a computer-readable storage medium that stores at least one instruction, at least one program, code set, or instruction set in the computer-readable storage medium, the at least one instruction, the At least one program, the code set or the instruction set is loaded and executed by the processor to implement the steps performed by the first terminal or the access network device in the data transmission method of the direct connection communication provided by the foregoing method embodiments.

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Abstract

本公开是关于一种直连通信的直连通信的数据传输方法、装置、设备及系统，属于通信领域。所述方法包括：当需要在目标时间单元内发送直连混合自动重传请求HARQ反馈信息和上行信息，且所述直连HARQ反馈信息与所述上行信息满足预定时序关系时，第一终端在所述目标时间单元内的同一物理层上行信道上向接入网设备发送所述直连HARQ反馈信息和所述上行信息。本公开通过上述方式，当需要在目标时间单元内发送直连HARQ反馈信息和上行信息时，直连HARQ反馈信息与上行信息至少满足预定时序关系才能保证第一终端能够及时处理上行复用传输，充分确保了在直连通信场景中信息收发的成功率。

Description

直连通信的数据传输方法、装置、设备及系统 技术领域
本公开涉及通信领域，特别涉及一种直连通信的数据传输方法、装置、设备及系统。
背景技术
在车联网(Vehicle to Everything，V2X)技术中，车载设备与其它设备(如其它车载设备、路侧基础设施等)之间可以通过侧链路(英文：sidelink)进行直连通信。直连通信具有时延短、开销小等特点。
相关技术中，基于接入网设备调度的直连通信方式包括：接入网设备通过下行控制信息(Downlink Control Information，DCI)将调度信息发送至直连通信发送端用户设备(简称为：第一终端)，第一终端根据接入网设备的调度信息与通过sidelink将直连数据发送至直连通信接收端用户设备(简称为：第二终端)。
由于基于接入网设备调度的终端可能同时存在上下行业务和直连通信业务，因此在同一时间单元内直连混合自动重传请求(Hybrid Auto Repeat Req uest，HARQ)反馈的传输可能会和其他上行数据的传输在时间域上重合，导致资源冲突的问题，目前还没有合适的解决方案。
发明内容
本公开实施例提供了一种直连通信的数据传输方法、装置、设备及系统。所述技术方案如下：
根据本公开实施例的第一方面，提供了一种直连通信的数据传输方法，所述方法包括：
当需要在目标时间单元内发送直连HARQ反馈信息和上行信息，且所述直连HARQ反馈信息与所述上行信息满足预定时序关系时，第一终端在所述目标时间单元内的同一物理层上行信道上向接入网设备发送所述直连HARQ 反馈信息和所述上行信息；
其中，所述直连HARQ反馈信息用于指示直连数据对应的接收状态，所述直连数据为所述第一终端过直连链路向第二终端发送的物理层数据。
可选的，所述上行信息，包括：调度请求SR、反馈应答信息ACK/NACK、信道状态信息CSI、信道质量指示CQI和上行业务数据中的至少一种。
可选的，所述预定时序关系，包括：
第一时刻早于第二时刻，且所述第一时刻与所述第二时刻之间的差值绝对值大于预定处理时长；
其中，所述第一时刻为所述直连HARQ反馈信息在直连反馈信道(Physical Sidelink Feedback Channel，PSFCH)中的结束传输时刻，所述第二时刻为所述上行信息在所述物理层上行信道中的起始传输时刻。
可选的，所述预定处理时长，包括：
第一恒定常数；或，
通信协议预定义的时长；或，
所述接入网设备预配置的时长。
可选的，所述方法还包括：
接收所述接入网设备发送的用于调度所述直连数据传输的DCI，所述DCI用于指示所述直连HARQ反馈信息的起始传输时刻，所述直连HARQ反馈信息的起始传输时刻为所述第二终端向所述第一终端开始发送所述直连HARQ反馈信息的时刻；
获取所述直连HARQ反馈信息的预定传输时长；
根据直连HARQ反馈信息的起始时刻和所述预定传输时长，确定所述第一时刻。
可选的，所述还包括：
接收所述接入网设备发送的用于调度所述直连数据传输的DCI，所述DCI用于指示所述直连数据的结束传输时刻，所述直连数据的结束传输时刻为所述第二终端接收到所述第一终端发送的所述直连数据的时刻；
获取所述直连数据传输与所述直连数据对应的所述直连HARQ反馈信息传输之间的预定时间间隔；
根据所述直连数据的结束传输时刻和所述预定时间间隔，确定所述第一时刻。
可选的，所述预定时间间隔，包括：
第二恒定常数；或，
通信协议预定义的时间间隔；或，
所述接入网设备预配置的时间间隔。
可选的，所述预定时间间隔，包括：
所述第一终端上报的所述直连数据传输与所述直连数据对应的所述直连HARQ反馈信息传输之间最大的时间间隔。
可选的，所述方法还包括：
所述第一终端向所述接入网设备上报所述预定时间间隔；或者，
所述第一终端接收所述接入网设备发送的下行信令，根据所述下行信令向所述接入网设备反馈所述预定时间间隔。
根据本公开实施例的第二方面，提供了一种直连通信的数据传输方法，所述方法包括：
当需要在目标时间单元内接收第一终端发送的直连HARQ反馈信息和上行信息，且所述直连HARQ反馈信息与所述上行信息满足预定时序关系时，接入网设备接收所述第一终端在所述目标时间单元内的同一物理层上行信道上发送的所述直连HARQ反馈信息和所述上行信息；
其中，所述直连HARQ反馈信息用于指示直连数据对应的接收状态，所述直连数据为所述第一终端过直连链路向第二终端发送的物理层数据。
可选的，所述上行信息，包括：调度请求SR、反馈应答信息ACK/NACK、信道状态信息CSI、信道质量指示CQI和上行业务数据中的至少一种。
可选的，所述预定时序关系，包括：
第一时刻早于第二时刻，且所述第一时刻与所述第二时刻之间的差值绝对值大于预定处理时长；
其中，所述第一时刻为所述直连HARQ反馈信息在PSFCH中的结束传输时刻，所述第二时刻为所述上行信息在所述物理层上行信道中的起始传输时刻。
可选的，所述预定处理时长，包括：
第一恒定常数；或，
通信协议预定义的时长；或，
所述接入网设备预配置的时长。
可选的，所述方法还包括：
向所述第一终端发送用于调度所述直连数据传输的DCI，所述DCI用于指示所述直连HARQ反馈信息的起始传输时刻，所述直连HARQ反馈信息的起始传输时刻为所述第二终端向所述第一终端开始发送所述直连HARQ反馈信息的时刻；
获取所述直连HARQ反馈信息的预定传输时长；
根据直连HARQ反馈信息的起始时刻和所述预定传输时长，确定所述第一时刻。
可选的，所述还包括：
所述接入网设备向所述第一终端发送用于调度所述直连数据传输的DCI，所述DCI用于指示所述直连数据的结束传输时刻，所述直连数据的结束传输时刻为所述第二终端接收到所述第一终端发送的所述直连数据的时刻；
获取所述直连数据传输与所述直连数据对应的所述直连HARQ反馈信息传输之间的预定时间间隔；
根据所述直连数据的结束传输时刻和所述预定时间间隔，确定所述第一时刻。
可选的，所述预定时间间隔，包括：
第二恒定常数；或，
通信协议预定义的时间间隔；或，
所述接入网设备预配置的时间间隔。
可选的，所述预定时间间隔，包括：
所述第一终端上报的所述直连数据传输与所述直连数据对应的所述直连HARQ反馈信息传输之间最大的时间间隔。
可选的，所述方法还包括：
接收所述第一终端上报的所述直连数据传输与所述直连数据对应的所述直连HARQ反馈信息传输之间的所述预定时间间隔；或者，
向所述第一终端发送下行信令，所述下行信令用于指示所述第一终端向所述接入网设备反馈所述预定时间间隔；接收所述第一终端反馈的所述预定时间间隔。
根据本公开实施例的第三方面，提供了一种直连通信的数据传输装置，用于第一终端中，所述装置包括：
发送模块，被配置为当需要在目标时间单元内发送直连HARQ反馈信息和上行信息，且所述直连HARQ反馈信息与所述上行信息满足预定时序关系时，在所述目标时间单元内的同一物理层上行信道上向接入网设备发送所述直连HARQ反馈信息和所述上行信息；
其中，所述直连HARQ反馈信息用于指示直连数据对应的接收状态，所述直连数据为所述第一终端过直连链路向第二终端发送的物理层数据。
可选的，所述上行信息，包括：调度请求SR、反馈应答信息ACK/NACK、信道状态信息CSI、信道质量指示CQI和上行业务数据中的至少一种。
可选的，所述预定时序关系，包括：
第一时刻早于第二时刻，且所述第一时刻与所述第二时刻之间的差值绝对值大于预定处理时长；
其中，所述第一时刻为所述直连HARQ反馈信息在PSFCH中的结束传输时刻，所述第二时刻为所述上行信息在所述物理层上行信道中的起始传输时刻。
可选的，所述预定处理时长，包括：
第一恒定常数；或，
通信协议预定义的时长；或，
所述接入网设备预配置的时长。
可选的，所述装置还包括：接收模块和处理模块；
所述接收模块，被配置为接收所述接入网设备发送的用于调度所述直连数据传输的DCI，所述DCI用于指示所述直连HARQ反馈信息的起始传输时刻，所述直连HARQ反馈信息的起始传输时刻为所述第二终端向所述第一终端开始发送所述直连HARQ反馈信息的时刻；
所述处理模块，被配置为获取所述直连HARQ反馈信息的预定传输时长；根据直连HARQ反馈信息的起始时刻和所述预定传输时长，确定所述第一时刻。
可选的，所述装置还包括：接收模块和处理模块；
所述接收模块，被配置为接收所述接入网设备发送的用于调度所述直连数据传输的DCI，所述DCI用于指示所述直连数据的结束传输时刻，所述直连数据的结束传输时刻为所述第二终端接收到所述第一终端发送的所述直连数据的时刻；
所述处理模块，被配置为获取所述直连数据传输与所述直连数据对应的所述直连HARQ反馈信息传输之间的预定时间间隔；根据所述直连数据的结束传输时刻和所述预定时间间隔，确定所述第一时刻。
可选的，所述预定时间间隔，包括：
第二恒定常数；或，
通信协议预定义的时间间隔；或，
所述接入网设备预配置的时间间隔。
可选的，所述预定时间间隔，包括：
所述第一终端上报的所述直连数据传输与所述直连数据对应的所述直连HARQ反馈信息传输之间最大的时间间隔。
可选的，所述装置还包括：
所述发送模块，还被配置为所述第一终端向所述接入网设备上报所述预定时间间隔；或者，
所述第一终端接收所述接入网设备发送的下行信令，根据所述下行信令向所述接入网设备反馈所述预定时间间隔。
根据本公开实施例的第四方面，提供了一种直连通信的数据传输装置，用于接入网设备中，所述装置包括：
接收模块，还被配置为当需要在目标时间单元内接收第一终端发送的直连HARQ反馈信息和上行信息，且所述直连HARQ反馈信息与所述上行信息满足预定时序关系时，接收所述第一终端在所述目标时间单元内的同一物理层上行信道上发送的所述直连HARQ反馈信息和所述上行信息；
其中，所述直连HARQ反馈信息用于指示直连数据对应的接收状态，所述直连数据为所述第一终端过直连链路向第二终端发送的物理层数据。
可选的，所述上行信息，包括：调度请求SR、反馈应答信息ACK/NACK、信道状态信息CSI、信道质量指示CQI和上行业务数据中的至少一种。
可选的，所述预定时序关系，包括：
第一时刻早于第二时刻，且所述第一时刻与所述第二时刻之间的差值绝对值大于预定处理时长；
其中，所述第一时刻为所述直连HARQ反馈信息在PSFCH中的结束传输时刻，所述第二时刻为所述上行信息在所述物理层上行信道中的起始传输时刻。
可选的，所述预定处理时长，包括：
第一恒定常数；或，
通信协议预定义的时长；或，
所述接入网设备预配置的时长。
可选的，所述装置还包括：发送模块和处理模块；
所述发送模块，被配置为向所述第一终端发送用于调度所述直连数据传输的DCI，所述DCI用于指示所述直连HARQ反馈信息的起始传输时刻，所述直连HARQ反馈信息的起始传输时刻为所述第二终端向所述第一终端开始发送所述直连HARQ反馈信息的时刻；
所述处理模块，被配置为获取所述直连HARQ反馈信息的预定传输时长；根据直连HARQ反馈信息的起始时刻和所述预定传输时长，确定所述第一时刻。
可选的，所述装置还包括：发送模块和处理模块；
所述发送模块，被配置为向所述第一终端发送用于调度所述直连数据传输的DCI，所述DCI用于指示所述直连数据的结束传输时刻，所述直连数据的结束传输时刻为所述第二终端接收到所述第一终端发送的所述直连数据的时刻；
所述处理模块，被配置为获取所述直连数据传输与所述直连数据对应的所述直连HARQ反馈信息传输之间的预定时间间隔；根据所述直连数据的结束传输时刻和所述预定时间间隔，确定所述第一时刻。
可选的，所述预定时间间隔，包括：
第二恒定常数；或，
通信协议预定义的时间间隔；或，
所述接入网设备预配置的时间间隔。
可选的，所述预定时间间隔，包括：
所述第一终端上报的所述直连数据传输与所述直连数据对应的所述直连HARQ反馈信息传输之间最大的时间间隔。
可选的，所述装置还包括：
所述接收模块，还被配置为接收所述第一终端上报的所述直连数据传输与所述直连数据对应的所述直连HARQ反馈信息传输之间的所述预定时间间隔；或者，
向所述第一终端发送下行信令，所述下行信令用于指示所述第一终端向所 述接入网设备反馈所述预定时间间隔；接收所述第一终端反馈的所述预定时间间隔。
根据本公开实施例的第五方面，提供了一种终端，所述终端包括：
处理器；
与所述处理器相连的收发器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为加载并执行所述可执行指令以实现如第一方面或者第一方面的任意一种可能的实现方式所述的直连通信的数据传输方法的步骤。
根据本公开实施例的第六方面，提供了一种接入网设备，所述接入网设备包括：
处理器；
与所述处理器相连的收发器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为加载并执行所述可执行指令以实现如第二方面或者第二方面的任意一种可能的实现方式所述的直连通信的数据传输方法的步骤。
根据本公开实施例的第七方面，提供了一种直连通信的数据传输系统，所述数据传输系统包括终端和接入网设备；
所述终端如第三方面或者第三方面的任意一种可能的实现方式所述的数据传输装置；
所述接入网如第四方面或者第四方面的任意一种可能的实现方式所述的数据传输装置。
根据本公开实施例的第八方面，提供了一种直连通信的数据传输系统，所述数据传输系统包括终端和接入网设备；
所述终端如第五方面所述的数据传输装置；
所述接入网如第六方面所述的数据传输装置。
根据本公开实施例的第九方面，提供了一种计算机可读存储介质，所述计算机可读存储介质中存储有至少一条指令、至少一段程序、代码集或指令集，所述至少一条指令、所述至少一段程序、所述代码集或指令集由所述处理器加载并执行以实现如第一方面或者第一方面的任意一种可能的实现方式所述的 直连通信的数据传输方法的步骤，或者实现如第二方面或者第一方面的任意一种可能的实现方式所述的直连通信的数据传输方法的步骤。
本公开实施例提供的技术方案可以包括以下有益效果：
通过当需要在目标时间单元内发送直连HARQ反馈信息和上行信息时，直连HARQ反馈信息与上行信息至少满足预定时序关系才能保证第一终端能够及时处理上行复用传输，即第一终端可以使用目标时间单元内的同一个物理层上行信道上报，避免了相关技术中直连HARQ反馈和其他上行数据的传输在时间域上重合导致资源冲突的问题，充分确保了在直连通信场景中信息收发的成功率，且有助于提高数据传输的效率。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是本公开实施例可能适用的一种网络架构的示意图；
图2是根据一示例性实施例示出的一种直连通信的数据传输方法的流程图；
图3是根据另一示例性实施例示出的一种直连通信的数据传输方法涉及的数据传输情况的示意图；
图4是根据另一示例性实施例示出的一种直连通信的数据传输方法的流程图；
图5是根据另一示例性实施例示出的一种直连通信的数据传输方法的流程图；
图6是根据另一示例性实施例示出的一种直连通信的数据传输方法涉及的数据传输情况的示意图；
图7是根据另一示例性实施例示出的一种直连通信的数据传输方法涉及的数据传输情况的示意图；
图8是根据一示例性实施例示出的一种直连通信的数据传输装置的框图；
图9是根据另一示例性实施例示出的一种直连通信的数据传输装置的框 图；
图10是根据一示例性实施例示出的一种终端的框图；
图11是根据一示例性实施例示出的一种接入网设备的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
本公开实施例描述的网络架构以及业务场景是为了更加清楚地说明本公开实施例的技术方案，并不构成对本公开实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本公开实施例提供的技术方案对于类似的技术问题，同样适用。
图1示出了本公开实施例可能适用的一种网络架构的示意图。该网络架构可以是一种C-V2X系统的网络架构。其中，C是指蜂窝(英文：Cellular)，C-V2X系统是基于3G、4G或5G等蜂窝网通信系统演进形成的车载无线通信系统。该网络架构可以包括：核心网11、接入网12、终端13和车辆14。
核心网11中包括若干核心网设备。核心网设备的功能主要是提供用户连接、对用户的管理以及对业务完成承载，作为承载网络提供到外部网络的接口。例如，长期演进(Long Term Evolution，LTE)系统的核心网中可以包括移动管理节点(Mobility Management Entity，MME)、服务网关(Serving Gateway，S-GW)、PDN网关(PDN Gateway，P-GW)等设备。5G NR系统的核心网中可以包括接入和移动性管理功能(Access and Mobility Management Function，AMF)实体、用户平面功能(User Plane Function，UPF)实体和会话管理功能(Session Management Function，SMF)实体等设备。
接入网12中包括若干接入网设备120。接入网设备120与核心网设备110之间通过某种接口技术互相通信，例如LTE系统中的S1接口，5G NR系统中的NG接口。接入网设备120可以是基站(Base Station，BS)，所述基站是一种部署在接入网中用以为终端提供无线通信功能的装置。所述基站可以包括各 种形式的宏基站，微基站，中继站，接入点等等。在采用不同的无线接入技术的系统中，具备基站功能的设备的名称可能会有所不同，例如在LTE系统中，称为eNodeB或者eNB；在5G NR系统中，称为gNodeB或者gNB。随着通信技术的演进，“基站”这一名称可能会变化。为方便描述，本公开实施例中，上述为终端提供无线通信功能的装置统称为接入网设备。
终端13可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其他处理设备，以及各种形式的用户设备(User Equipment，UE)，移动台(Mobile Station，MS)，终端(英文：terminal device)等等。为方便描述，上面提到的设备统称为终端。接入网设备120与终端13之间通过某种空口技术互相通信，例如Uu接口。
车辆14可以是自动驾驶车辆，也可以是非自动驾驶车辆。车辆14具备一车载设备，车辆14通过车载设备实现和其它车辆、终端13或者其它设备的通信，例如路侧单元(Road Side Unit，RSU)。该车载设备也可以称为车载终端、车载通信装置或其它名称，本公开实施例对此不作限定。车载设备可以是一集成在车载通信盒(Telematics BOX，T-BOX)里的装置，也可以是一跟车体分离的装置。此外，车载设备可以在车辆14出厂前装配在车辆14中，也可以在车辆14出厂后装配在车辆14中。
车辆14的车载设备与其它设备(如其它车载设备、终端13、RSU等)之间可以通过直连通信接口(如PC5接口)互相通信，相应地，该基于直连通信接口建立的通信链路可以称为直连链路或侧链路(sidelink)。此外，车辆14的车载设备与其它设备之间还可以通过接入网12以及核心网11进行中转，即利用原有的蜂窝网络中终端13与接入网设备120之间的通信链路进行通信。与基于Uu接口通信相比，基于直连通信接口通信具有时延短、开销小等特点，适合用于车载设备和地理位置接近的其它周边设备之间的通信。
上述图1所示的网络架构可以实现V2X业务场景，上述网络架构中还可以包括RSU、V2X应用服务器、V2X控制功能节点等设备，本公开实施例对此不作限定。另外，本公开实施例描述的技术方案可以适用于5G NR系统，也可以适用于5G NR系统后续的演进系统。
在本公开实施例中，针对上述V2X业务场景中的直连通信场景，提供了一种直连通信的数据传输方法，以解决资源冲突的问题。
在本公开实施例中，第一终端和第二终端是V2X业务场景中，进行直连 通信的两端设备，第一终端和第二终端之间可以通过直连通信接口(如PC5接口)建立侧链路，然后通过该侧链路进行用户面数据和控制面信令的交互。例如，第一终端可以是图1所示网络架构中的车辆14的车载设备，第二终端可以是其它车辆的车载设备，也可以是终端13或者RSU等。又例如，第一终端可以是图1所示网络架构中的终端13，第二终端可以是其它终端，也可以是车辆14的车载设备或者RSU等。在一些实施例中，对于同一设备(如同一车载设备或同一终端)来讲，其在某些场景下可以作为第一终端，在另一些场景下也可以作为第二终端。
在本公开实施例中，第一终端也称为直连通信发送端用户设备，第二终端也称为直连通信接收端用户设备。
下面，通过几个示例性实施例对本公开技术方案进行介绍说明。
图2是根据一示例性实施例示出的一种直连通信的数据传输方法的流程图。该方法可应用于图1所示的网络架构中。该方法可以包括如下几个步骤。
在步骤201中，接入网设备向第一终端发送DCI，DCI中携带有数据传输参数。
可选的，接入网设备通过下行信道向第一终端发送DCI。该DCI为用于调度直连数据传输的DCI。
示意性的，下行信道包括物理下行控制信道(Physical Downlink Control Channel,PDCCH)。
可选的，数据传输参数用于指示时频资源和/或调制编码方式。
在步骤202中，第一终端根据数据传输参数通过直连链路向第二终端发送直连数据。
可选的，第一终端接收接入网设备通过下行信道发送的DCI，根据DCI中的数据传输参数所指示的时频资源和/或调制编码方式，通过直连链路向第二终端发送直连数据。
其中，直连数据为第一终端过直连链路向第二终端发送的物理层数据。
第一终端使用直连链路的目标时频资源将直连数据发送至第二终端。
可选的，目标时频资源为预定义或者预配置的时频资源。
可选的，第一终端还会在直连数据发送之前或直连数据发送的同时，向第二终端发送控制信息，该控制信息用于指示物理层数据的接收相关信息。
可选的，接收相关信息包括：用于承载物理层数据的目标时频资源的时域位置和/或频域位置。在一些实施例中，接收相关信息还包括：物理层数据的调制编码方式(Modulation and Coding Scheme，MCS)、混合自动重传请求进程标识(Hybrid ARQ Process Number，HARQ-ID)、新数据指示(New-Data Indicator，NDI)等信息。
在步骤203中，第二终端向第一终端反馈直连HARQ反馈信息。
对应的，第二终端接收第一终端发送的直连数据。可选的，第二终端接收第一终端使用直连链路的目标时频资源发送的直连数据。
第二终端向第一终端反馈直连HARQ反馈信息，直连HARQ反馈信息包括至少一次直连数据传输对应的HARQ反馈比特。
示意的，一次直连数据传输对应的HARQ反馈比特的数量为1比特(英文：bit)或者2bit。
其中，直连HARQ反馈信息用于指示直连数据对应的接收状态。直连数据对应的接收状态包括：确认接收状态(Acknowledgement，ACK)或非确认接收状态(Non-Acknowledgement，NACK)。
ACK用于指示直连数据被第二终端正确接收到。
NACK包括未接收状态和/或未正确接收状态。未接收状态用于指示直连数据未被第二终端接收到；未正确接收状态用于指示直连数据虽然被第二终端接收到，但是第二终端接收到的直连数据与第一终端发送的直连数据不同，即，接收到错误的直连数据。
第二终端在接收到直连数据后，对接收到的直连数据进行处理，比如：第二终端对直连数据进行解调、译码等处理。在处理过程中，第二终端会确定出直连数据的接收状态。
可选的，第二终端通过直连信道向第一终端发送直连HARQ反馈信息。示意性的，直连信道为PSFCH。
在步骤204中，第一终端接收第二终端反馈的直连HARQ反馈信息。
对应的，第一终端接收第二终端通过PSFCH发送的直连HARQ反馈信息。
需要说明的是，本公开实施例中第一终端与第二终端的直连通信方式是基于接入网设备调度的直连通信方式。即第一终端基于接入网设备的调度进行数据发送。对于基于接入网设备调度的直连通信方式，由于调度是由接入网设备侧完成的，直连数据对应的直连HARQ反馈信息需要从第二终端传回接入网 设备，以方便接入网设备侧调度数据重传或者新数据的发送。考虑到第一终端可能和第二终端处在不同的接入网设备覆盖范围之下，或者处在网络覆盖之外，直连HARQ反馈信息需要先从第二终端传给第一终端，再由第一终端上报给接入网设备。
在步骤205中，当需要在目标时间单元内发送直连HARQ反馈信息和上行信息，且直连HARQ反馈信息与上行信息满足预定时序关系时，第一终端在目标时间单元内的同一物理层上行信道上向接入网设备发送直连HARQ反馈信息和上行信息。
需要说明的是，第一终端接收到第二终端发送的直连HARQ反馈信息，在第一终端向接入网设备上报该直连HARQ反馈信息之前，第一终端需要对直连HARQ反馈信息进行处理，第一终端的处理过程会占用一些时长，当需要在目标时间单元内发送直连HARQ反馈信息和上行信息时，若某些上行信息在第一终端处理该直连HARQ反馈的过程中已经传输或者正在传输至接入网设备，则第一终端无法将这些上行信息与该直连HARQ反馈复用起来一起上报或者第一终端需要退出已有的传输流程才能重新进行复用，这样会大大增加芯片复杂度。因此，当需要在目标时间单元内发送直连HARQ反馈信息和上行信息时，直连HARQ反馈信息和上行信息至少满足预定时序关系时保证了第一终端能够及时处理上行复用传输。
其中，直连HARQ反馈信息用于指示直连数据对应的接收状态，直连数据为第一终端过直连链路向第二终端发送的物理层数据。
可选的，上行信息包括第一终端向接入网设备发送的上行控制信息(Uplink ControlInformation，UCI)和/或上行业务数据。
其中，UCI包括如下信息中的至少一种：
调度请求(Scheduling Request，SR)；
反馈应答信息：确认应答(Acknowledgement，ACK)或非确认应答(Non-Acknowledgement，NACK)；
信道状态信息(Channel State Information，CSI)；
信道质量指示(Channel Quality Indicator，CQI)。
预定时序关系为预配置的或者预定义的直连HARQ反馈信息与上行信息之间的时序关系。
可选的，目标时间单元是指终端设备需要发送上行HARQ反馈比特和直 连HARQ反馈信息时对应的时间单元。示意性的，目标时间单元为a个符号(英文：symbol)、b个符号组(英文：symbol group)、c个时隙(英文：slot)或d个子帧(英文：subframe)，a、b、c、d为正整数，本实施例对此不加以限定。
可选的，第一终端接收到接入网设备发送的配置信息，根据配置信息确定目标时间单元内的同一个物理层上行信道的物理资源。
可选的，物理层上行信道为用于向接入网设备发送上行HARQ反馈比特的上行信道。
可选的，物理层上行信道是基于第一通信协议或第二通信协议的上行信道。第一通信协议包括LTE协议，第二通信协议包括NR协议。
可选的，物理层上行信道是PUCCH。示意性的，PUCCH信道格式为PU CCH format 1、PUCCH format 1a、PUCCH format 1b、PUCCH format 2、P UCCHformat 2a、PUCCH format 2b、PUCCH format 3、PUCCH format 4和PUCCH format 5中的任意一种。
第一终端在目标时间单元内的同一个物理层上行信道的物理资源中向接入网设备发送直连HARQ反馈信息和上行信息。
在步骤206中，接入网设备接收第一终端在目标时间单元内的同一物理层上行信道上发送的直连HARQ反馈信息和上行信息。
对应的，当需要在目标时间单元内接收第一终端发送的直连HARQ反馈信息和上行信息，且直连HARQ反馈信息与上行信息满足预定时序关系时，接入网设备接收第一终端在目标时间单元内的同一PUCCH上发送的直连HARQ反馈信息和上行信息。
需要说明的是，在本公开实施例中，接入网设备需要进行与第一终端相同的时序判断，即判断直连HARQ反馈信息与上行信息是否满足预定时序关系。接入网设备的时序判断过程可类比参考第一终端的时序判断过程的相关细节，在此不再赘述。
综上所述，本实施例通过当需要在目标时间单元内发送直连HARQ反馈信息和上行信息时，直连HARQ反馈信息与上行信息至少满足预定时序关系才能保证第一终端能够及时处理上行复用传输，即第一终端可以使用目标时间单元内的同一个物理层上行信道上报，避免了相关技术中直连HARQ反馈和其他上行数据的传输在时间域上重合导致资源冲突的问题，充分确保了在直连通信场景中信息收发的成功率，且有助于提高数据传输的效率。
可选的，上述将直连HARQ反馈信息和上行信息进行上行复用传输至少满足预定时序关系。预定时序关系，包括：第一时刻早于第二时刻，且第一时刻与第二时刻之间的差值绝对值大于预定处理时长；
其中，第一时刻为直连HARQ反馈信息在PSFCH中的结束传输时刻，第二时刻为上行信息在物理层上行信道中的起始传输时刻。
可选的，第一时刻为直连HARQ反馈信息在PSFCH中传输的结束时刻，即为第一终端接收到第二终端发送的直连HARQ反馈信息的时刻。
可选的，第二时刻为上行信息在物理层上行信道中传输的起始时刻，即为第一终端向接入网设备开始发送上行信息的时刻。
可选的，预定处理时长，包括：
第一恒定常数；或，
通信协议预定义的时长；或，
接入网设备预配置的时长。
示意性的，预定处理时长为通信协议预定义的固定时间长度，比如，预定处理时长为1个正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)时域符号长度，或者预定处理时长为15KHz子载波间隔情况下的1个OFDM时域符号长度。
在一个示意性的例子中，如图3所示，第一终端接收接入网设备发送的用于调度直连数据传输的DCI，根据DCI中的数据传输参数向第二终端进行直连数据传输，第一终端接收第二终端通过PSFCH传输的直连HARQ反馈信息，第一终端确定第一时刻为T0，预定处理时长为D0，当第一终端需要在目标时间单元内发送直连HARQ反馈信息和起始传输时刻在T0+D0之后的上行信息时，第一终端在目标时间单元内的同一物理层上行信道上向接入网设备发送直连HARQ反馈信息和上行信息。
可选的，上述步骤205包括如下几个步骤：第一终端确定第一时刻，当需要在目标时间单元内发送直连HARQ反馈信息和上行信息，第一时刻早于上行信息的起始传输时刻且结束传输时刻与起始传输时刻之间的差值绝对值大于预定处理时长时，第一终端在目标时间单元内的同一物理层上行信道上向接入网设备发送直连HARQ反馈信息和上行信息。
其中，第一终端确定第一时刻的方式包括但不限于以下几种可能的实现方式。
在一种可能的实现方式中，如图4所示，包括但不限于以下几个步骤：
在步骤401中，接入网设备向第一终端发送用于调度直连数据传输的DCI，DCI用于指示直连HARQ反馈信息的起始传输时刻。
其中，直连HARQ反馈信息的起始传输时刻为第二终端向第一终端开始发送直连HARQ反馈信息的时刻。
可选的，直连HARQ反馈信息的起始传输时刻为直连HARQ反馈信息在PSFCH上传输的开始时刻。
在步骤402中，第一终端接收接入网设备发送的用于调度直连数据传输的DCI。
可选的，第一终端接收接入网设备发送的DCI，该DCI用于指示直连HARQ反馈信息的起始传输时刻。
在步骤403中，第一终端获取直连HARQ反馈信息的预定传输时长。
第一终端获取直连HARQ反馈信息的预定传输时长。
可选的，预定传输时长为预定义或者预配置的直连HARQ反馈信息在PSFCH上传输的时长。
在步骤404中，第一终端根据直连HARQ反馈信息的起始时刻和预定传输时长，确定第一时刻。
可选的，第一终端将直连HARQ反馈信息的起始时刻和预定传输时长的和确定为第一时刻。其中，第一时刻为直连HARQ反馈信息在PSFCH中的结束传输时刻。
接入网设备需要进行与第一终端相同的时序判断，即接入网设备在向第一终端发送用于调度所述直连数据传输的DCI，该DCI用于指示直连HARQ反馈信息的起始传输时刻之后，接入网设备获取所述直连HARQ反馈信息的预定传输时长；根据直连HARQ反馈信息的起始时刻和所述预定传输时长，确定所述第一时刻。
需要说明的是，接入网设备根据直连HARQ反馈信息的起始时刻和所述预定传输时长，确定所述第一时刻的过程可类比参考第一终端确定第一时刻的过程，在此不再赘述。
在另一种可能的实现方式中，如图5所示，包括但不限于以下几个步骤：
在步骤501中，接入网设备向第一终端发送用于调度直连数据传输的DCI，DCI用于指示直连数据的结束传输时刻。
其中，直连数据的结束传输时刻为第二终端接收到第一终端发送的直连数据的时刻。
可选的，直连数据的结束传输时刻为直连数据在直连信道上传输的结束时刻。
在步骤502中，第一终端接收接入网设备发送的用于调度直连数据传输的DCI。
第一终端接收接入网设备发送的用于调度直连数据传输的DCI，根据DCI确定直连数据的结束传输时刻。
在步骤503中，第一终端获取直连数据传输与直连数据对应的直连HARQ反馈信息传输之间的预定时间间隔。
可选的，预定时间间隔为直连数据的结束传输时刻与对应的直连HARQ反馈信息的开始传输时刻之间的时间间隔。
预定时间间隔可以是通过协议定义或者接入网设备配置等静态或者半静态的方式确定的，也可以是第一终端或者第二终端自主决定并上报至接入网设备的。
可选的，预定时间间隔，包括：
第二恒定常数；或，
通信协议预定义的时间间隔；或，
接入网设备预配置的时间间隔。
可选的，预定时间间隔，包括：
第一终端上报的直连数据传输与直连数据对应的直连HARQ反馈信息传输之间最大的时间间隔。
当预定时间间隔为第一终端上报的直连数据传输与直连数据对应的直连HARQ反馈信息传输之间最大的时间间隔时，终端上报预定时间间隔的时机包括但不限于以下两种可能的实现方式。
在一种可能的实现方式中，第一终端主动向接入网设备上报预定时间间隔。即第一终端向接入网设备上报预定时间间隔。
预定时间间隔为直连数据传输与直连数据对应的直连HARQ反馈信息传 输之间的预定时间间隔。
在另一种可能的实现方式中，第一终端接收接入网设备发送的下行信令，下行信令用于指示第一终端向接入网设备反馈预定时间间隔。第一根据下行信令向接入网设备反馈预定时间间隔，对应的，接入网设备接收该预定时间间隔。
在步骤504中，第一终端根据直连数据的结束传输时刻和预定时间间隔，确定第一时刻。
可选的，第一时刻为直连HARQ反馈信息在PSFCH上传输的结束时刻。
可选的，第一终端将直连数据的结束传输时刻与预定时间间隔之和确定为第一时刻。
接入网设备需要进行与第一终端相同的时序判断，即接入网设备在向第一终端发送用于调度直连数据传输的DCI，DCI用于指示直连数据的结束传输时刻之后，获取直连数据传输与直连数据对应的直连HARQ反馈信息传输之间的预定时间间隔；根据直连数据的结束传输时刻和预定时间间隔，确定第一时刻。
需要说明的是，接入网设备根据直连数据的结束传输时刻和预定时间间隔，确定第一时刻的过程可类比参考第一终端根据直连数据的结束传输时刻和预定时间间隔，确定第一时刻的过程，在此不再赘述。
在一个示意性的例子中，如图6所示，第一终端接收接入网设备发送的用于调度直连数据传输的DCI，该DCI用于指示直连数据的结束传输时刻T1，第一终端根据接入网设备的调度向第二终端进行直连数据传输，第一终端接收第二终端通过PSFCH传输的直连HARQ反馈信息。第一终端获取通信协议预定义的预定时间间隔C0，根据直连数据的结束传输时刻T1和预定时间间隔C0之和确定为第一时刻T0。在第一终端确定出第一时刻T0＝“T1+C0”且预定处理时长为D0之后，执行当第一终端需要在目标时间单元内发送直连HARQ反馈信息和起始传输时刻在T0+D0之后的上行信息时，第一终端在目标时间单元内的同一物理层上行信道上向接入网设备发送直连HARQ反馈信息和上行信息。
在另一个示意性的例子中，如图7所示，第一终端接收接入网设备发送的用于调度直连数据传输的DCI，该DCI用于指示直连数据的结束传输时刻T1，第一终端根据接入网设备的调度向第二终端进行直连数据传输，第一终端接收第二终端通过PSFCH传输的直连HARQ反馈信息。第一终端获取自主决定的 预定时间间隔C1，第一终端根据直连数据的结束传输时刻T1和预定时间间隔C1之和确定为第一时刻T0。在第一终端确定出第一时刻T0＝“T1+C1”且预定处理时长为D0之后，执行当第一终端需要在目标时间单元内发送直连HARQ反馈信息和起始传输时刻在T0+D0之后的上行信息时，第一终端在目标时间单元内的同一物理层上行信道上向接入网设备发送直连HARQ反馈信息和上行信息。
综上所述，本公开实施例还通过第一终端确定第一时刻，当需要在目标时间单元内发送直连HARQ反馈信息和上行信息，第一时刻早于上行信息的起始传输时刻且结束传输时刻与起始传输时刻之间的差值绝对值大于预定处理时长时，第一终端在目标时间单元内的同一物理层上行信道上向接入网设备发送直连HARQ反馈信息和上行信息；避免了某些上行信息在上行信道上开始传输时直连HARQ反馈信息才刚刚生成而导致第一终端无法复用或者退出已有的传输流程才能重新进行复用的情况，简化了芯片复杂度，进一步保证了第一终端能够及时处理上行复用传输。
下述为本公开装置实施例，可以用于执行本公开方法实施例。对于本公开装置实施例中未披露的细节，请参照本公开方法实施例。
图8是根据一示例性实施例示出的一种直连通信的数据传输装置的框图。该装置具有实现上述第一终端侧的方法示例的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该装置800可以包括：接收模块810、处理模块820和发送模块830。
发送模块830，被配置为当需要在目标时间单元内发送直连HARQ反馈信息和上行信息，且直连HARQ反馈信息与上行信息满足预定时序关系时，在目标时间单元内的同一物理层上行信道上向接入网设备发送直连HARQ反馈信息和上行信息；
其中，直连HARQ反馈信息用于指示直连数据对应的接收状态，直连数据为第一终端过直连链路向第二终端发送的物理层数据。
可选的，上行信息，包括：调度请求SR、反馈应答信息ACK/NACK、信道状态信息CSI、信道质量指示CQI和上行业务数据中的至少一种。
可选的，预定时序关系，包括：
第一时刻早于第二时刻，且所述第一时刻与所述第二时刻之间的差值绝对 值大于预定处理时长；
其中，所述第一时刻为所述直连HARQ反馈信息在PSFCH中的结束传输时刻，所述第二时刻为所述上行信息在所述物理层上行信道中的起始传输时刻。
可选的，预定处理时长，包括：
第一恒定常数；或，
通信协议预定义的时长；或，
接入网设备预配置的时长。
可选的，接收模块810，被配置为接收接入网设备发送的用于调度直连数据传输的DCI，DCI用于指示直连HARQ反馈信息的起始传输时刻，直连HARQ反馈信息的起始传输时刻为第二终端向第一终端开始发送直连HARQ反馈信息的时刻；
处理模块820，被配置为获取直连HARQ反馈信息的预定传输时长；根据直连HARQ反馈信息的起始时刻和预定传输时长，确定第一时刻。
可选的，接收模块810，被配置为接收接入网设备发送的用于调度直连数据传输的DCI，DCI用于指示直连数据的结束传输时刻，直连数据的结束传输时刻为第二终端接收到第一终端发送的直连数据的时刻；
处理模块820，被配置为获取直连数据传输与直连数据对应的直连HARQ反馈信息传输之间的预定时间间隔；根据直连数据的结束传输时刻和预定时间间隔，确定第一时刻。
可选的，预定时间间隔，包括：
第二恒定常数；或，
通信协议预定义的时间间隔；或，
接入网设备预配置的时间间隔。
可选的，预定时间间隔，包括：
第一终端上报的直连数据传输与直连数据对应的直连HARQ反馈信息传输之间最大的时间间隔。
可选的，装置还包括：
发送模块830，还被配置为第一终端向接入网设备上报预定时间间隔；或者，
第一终端接收接入网设备发送的下行信令，根据下行信令向接入网设备反 馈预定时间间隔。
综上所述，本实施例通过当需要在目标时间单元内发送直连HARQ反馈信息和上行信息时，直连HARQ反馈信息与上行信息至少满足预定时序关系才能保证第一终端能够及时处理上行复用传输，即第一终端可以使用目标时间单元内的同一个物理层上行信道上报，避免了相关技术中直连HARQ反馈和其他上行数据的传输在时间域上重合导致资源冲突的问题，充分确保了在直连通信场景中信息收发的成功率，且有助于提高数据传输的效率。
图9是根据另一示例性实施例示出的一种直连通信的数据传输装置的框图。该装置具有实现上述接入网设备侧的方法示例的功能，功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该装置900可以包括：接收模块910、处理模块920和发送模块930。
接收模块910，还被配置为当需要在目标时间单元内接收第一终端发送的直连HARQ反馈信息和上行信息，且直连HARQ反馈信息与上行信息满足预定时序关系时，接收第一终端在目标时间单元内的同一物理层上行信道上发送的直连HARQ反馈信息和上行信息；
其中，直连HARQ反馈信息用于指示直连数据对应的接收状态，直连数据为第一终端过直连链路向第二终端发送的物理层数据。
可选的，上行信息，包括：调度请求SR、反馈应答信息ACK/NACK、信道状态信息CSI、信道质量指示CQI和上行业务数据中的至少一种。
可选的，预定时序关系，包括：
第一时刻早于第二时刻，且所述第一时刻与所述第二时刻之间的差值绝对值大于预定处理时长；
其中，所述第一时刻为所述直连HARQ反馈信息在PSFCH中的结束传输时刻，所述第二时刻为所述上行信息在所述物理层上行信道中的起始传输时刻。
可选的，预定处理时长，包括：
第一恒定常数；或，
通信协议预定义的时长；或，
接入网设备预配置的时长。
可选的，发送模块930，被配置为向第一终端发送用于调度直连数据传输 的DCI，DCI用于指示直连HARQ反馈信息的起始传输时刻，直连HARQ反馈信息的起始传输时刻为第二终端向第一终端开始发送直连HARQ反馈信息的时刻；
处理模块920，被配置为获取直连HARQ反馈信息的预定传输时长；根据直连HARQ反馈信息的起始时刻和预定传输时长，确定第一时刻。
可选的，发送模块930，被配置为向第一终端发送用于调度直连数据传输的DCI，DCI用于指示直连数据的结束传输时刻，直连数据的结束传输时刻为第二终端接收到第一终端发送的直连数据的时刻；
处理模块920，被配置为获取直连数据传输与直连数据对应的直连HARQ反馈信息传输之间的预定时间间隔；根据直连数据的结束传输时刻和预定时间间隔，确定第一时刻。
可选的，预定时间间隔，包括：
第二恒定常数；或，
通信协议预定义的时间间隔；或，
接入网设备预配置的时间间隔。
可选的，预定时间间隔，包括：
第一终端上报的直连数据传输与直连数据对应的直连HARQ反馈信息传输之间最大的时间间隔。
可选的，接收模块910，还被配置为接收第一终端上报的直连数据传输与直连数据对应的直连HARQ反馈信息传输之间的预定时间间隔；或者，
向第一终端发送下行信令，下行信令用于指示第一终端向接入网设备反馈预定时间间隔；接收第一终端反馈的预定时间间隔。
需要说明的一点是，上述实施例提供的装置在实现其功能时，仅以上述各个功能模块的划分进行举例说明，实际应用中，可以根据实际需要而将上述功能分配由不同的功能模块完成，即将设备的内容结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
上述主要从接入网设备、第一终端和第二终端之间交互的角度对本公开实施例提供的方案进行了介绍。可以理解的是，设备(包括接入网设备、第一终 端和第二终端)为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。结合本公开中所公开的实施例描述的各示例的单元及算法步骤，本公开实施例能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。本领域技术人员可以对每个特定的应用来使用不同的方法来实现所描述的功能，但是这种实现不应认为超出本公开实施例的技术方案的范围。
图10是根据一示例性实施例示出的一种终端1000的框图。例如，终端1000可以是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图10，终端1000可以包括以下一个或多个组件：处理组件1002，存储器1004，电源组件1006，多媒体组件1008，音频组件1010，输入/输出(I/O)的接口1012，传感器组件1014，以及通信组件1016。
处理组件1002通常控制终端1000的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理元件1002可以包括一个或多个处理器1020来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件1002可以包括一个或多个模块，便于处理组件1002和其他组件之间的交互。例如，处理部件1002可以包括多媒体模块，以方便多媒体组件1008和处理组件1002之间的交互。
存储器1004被配置为存储各种类型的数据以支持在设备1000的操作。这些数据的示例包括用于在终端1000上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器1004可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电力组件1006为终端1000的各种组件提供电力。电力组件1006可以包括电源管理系统，一个或多个电源，及其他与为终端1000生成、管理和分配电力相关联的组件。
多媒体组件1008包括在所述终端1000和用户之间的提供一个输出接口的 屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件1008包括一个前置摄像头和/或后置摄像头。当设备1000处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件1010被配置为输出和/或输入音频信号。例如，音频组件1010包括一个麦克风(MIC)，当终端1000处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器1004或经由通信组件1016发送。在一些实施例中，音频组件1010还包括一个扬声器，用于输出音频信号。
I/O接口1012为处理组件1002和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件1014包括一个或多个传感器，用于为终端1000提供各个方面的状态评估。例如，传感器组件1014可以检测到设备1000的打开/关闭状态，组件的相对定位，例如所述组件为终端1000的显示器和小键盘，传感器组件1014还可以检测终端1000或终端1000一个组件的位置改变，用户与终端1000接触的存在或不存在，终端1000方位或加速/减速和终端1000的温度变化。传感器组件1014可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件1014还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件1014还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件1016被配置为便于终端1000和其他设备之间有线或无线方式的通信。终端1000可以接入基于通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信部件1016经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述 通信部件1016还包括近场通信(NFC)模块，以促进短程通信。
在示例性实施例中，终端1000可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器1004，上述指令可由终端1000的处理器1020执行以完成上述方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
一种非临时性计算机可读存储介质，当所述非临时性计算机存储介质中的指令由第一终端的处理器执行时，使得第一终端能够执行上述数据传输方法。
图11是根据一示例性实施例示出的一种接入网设备1100的框图。
接入网设备1100可以包括：处理器1101、接收机1102、发射机1103和存储器1104。接收机1102、发射机1103和存储器1104分别通过总线与处理器1101连接。
其中，处理器1101包括一个或者一个以上处理核心，处理器1101通过运行软件程序以及模块以执行本公开实施例提供的传输配置方法中接入网设备所执行的方法。存储器1104可用于存储软件程序以及模块。具体的，存储器1104可存储操作系统11041、至少一个功能所需的应用程序模块11042。接收机1102用于接收其他设备发送的通信数据，发射机1103用于向其他设备发送通信数据。
本公开一示例性实施例还提供了一种直连通信的数据传输系统，所述数据传输系统包括终端和接入网设备；
所述终端如图8所示实施例提供的数据传输装置；
所述接入网如图9所示实施例提供的数据传输装置。
本公开一示例性实施例还提供了一种直连通信的数据传输系统，所述数据传输系统包括终端和接入网设备；
所述终端如如图10所示实施例提供的终端；
所述接入网如图11所示实施例提供的接入网设备。
本公开一示例性实施例还提供了一种计算机可读存储介质，所述计算机可读存储介质中存储有至少一条指令、至少一段程序、代码集或指令集，所述至少一条指令、所述至少一段程序、所述代码集或指令集由所述处理器加载并执行以实现上述各个方法实施例提供的直连通信的数据传输方法中由第一终端或者接入网设备执行的步骤。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (41)

  1. 一种直连通信的数据传输方法，其特征在于，所述方法包括：
    当需要在目标时间单元内发送直连混合自动重传请求HARQ反馈信息和上行信息，且所述直连HARQ反馈信息与所述上行信息满足预定时序关系时，第一终端在所述目标时间单元内的同一物理层上行信道上向接入网设备发送所述直连HARQ反馈信息和所述上行信息；
    其中，所述直连HARQ反馈信息用于指示直连数据对应的接收状态，所述直连数据为所述第一终端过直连链路向第二终端发送的物理层数据。
  2. 根据权利要求1所述的方法，其特征在于，所述上行信息，包括：调度请求SR、反馈应答信息ACK/NACK、信道状态信息CSI、信道质量指示CQI和上行业务数据中的至少一种。
  3. 根据权利要求1或2所述的方法，其特征在于，所述预定时序关系，包括：
    第一时刻早于第二时刻，且所述第一时刻与所述第二时刻之间的差值绝对值大于预定处理时长；
    其中，所述第一时刻为所述直连HARQ反馈信息在直连反馈信道PSFCH中的结束传输时刻，所述第二时刻为所述上行信息在所述物理层上行信道中的起始传输时刻。
  4. 根据权利要求3所述的方法，其特征在于，所述预定处理时长，包括：
    第一恒定常数；或，
    通信协议预定义的时长；或，
    所述接入网设备预配置的时长。
  5. 根据权利要求3所述的方法，其特征在于，所述方法还包括：
    接收所述接入网设备发送的用于调度所述直连数据传输的DCI，所述DCI用于指示所述直连HARQ反馈信息的起始传输时刻，所述直连HARQ反馈信息的起始传输时刻为所述第二终端向所述第一终端开始发送所述直连HARQ反馈 信息的时刻；
    获取所述直连HARQ反馈信息的预定传输时长；
    根据直连HARQ反馈信息的起始时刻和所述预定传输时长，确定所述第一时刻。
  6. 根据权利要求3所述的方法，其特征在于，所述还包括：
    接收所述接入网设备发送的用于调度所述直连数据传输的DCI，所述DCI用于指示所述直连数据的结束传输时刻，所述直连数据的结束传输时刻为所述第二终端接收到所述第一终端发送的所述直连数据的时刻；
    获取所述直连数据传输与所述直连数据对应的所述直连HARQ反馈信息传输之间的预定时间间隔；
    根据所述直连数据的结束传输时刻和所述预定时间间隔，确定所述第一时刻。
  7. 根据权利要求6所述的方法，其特征在于，所述预定时间间隔，包括：
    第二恒定常数；或，
    通信协议预定义的时间间隔；或，
    所述接入网设备预配置的时间间隔。
  8. 根据权利要求6所述的方法，其特征在于，所述预定时间间隔，包括：
    所述第一终端上报的所述直连数据传输与所述直连数据对应的所述直连HARQ反馈信息传输之间最大的时间间隔。
  9. 根据权利要求6所述的方法，其特征在于，所述方法还包括：
    所述第一终端向所述接入网设备上报所述预定时间间隔；或者，
    所述第一终端接收所述接入网设备发送的下行信令，根据所述下行信令向所述接入网设备反馈所述预定时间间隔。
  10. 一种直连通信的数据传输方法，其特征在于，所述方法包括：
    当需要在目标时间单元内接收第一终端发送的直连混合自动重传请求HARQ反馈信息和上行信息，且所述直连HARQ反馈信息与所述上行信息满足 预定时序关系时，接入网设备接收所述第一终端在所述目标时间单元内的同一物理层上行信道上发送的所述直连HARQ反馈信息和所述上行信息；
    其中，所述直连HARQ反馈信息用于指示直连数据对应的接收状态，所述直连数据为所述第一终端过直连链路向第二终端发送的物理层数据。
  11. 根据权利要求10所述的方法，其特征在于，所述上行信息，包括：调度请求SR、反馈应答信息ACK/NACK、信道状态信息CSI、信道质量指示CQI和上行业务数据中的至少一种。
  12. 根据权利要求10或11所述的方法，其特征在于，所述预定时序关系，包括：
    第一时刻早于第二时刻，且所述第一时刻与所述第二时刻之间的差值绝对值大于预定处理时长；
    其中，所述第一时刻为所述直连HARQ反馈信息在直连反馈信道PSFCH中的结束传输时刻，所述第二时刻为所述上行信息在所述物理层上行信道中的起始传输时刻。
  13. 根据权利要求12所述的方法，其特征在于，所述预定处理时长，包括：
    第一恒定常数；或，
    通信协议预定义的时长；或，
    所述接入网设备预配置的时长。
  14. 根据权利要求12所述的方法，其特征在于，所述方法还包括：
    向所述第一终端发送用于调度所述直连数据传输的DCI，所述DCI用于指示所述直连HARQ反馈信息的起始传输时刻，所述直连HARQ反馈信息的起始传输时刻为所述第二终端向所述第一终端开始发送所述直连HARQ反馈信息的时刻；
    获取所述直连HARQ反馈信息的预定传输时长；
    根据直连HARQ反馈信息的起始时刻和所述预定传输时长，确定所述第一时刻。
  15. 根据权利要求12所述的方法，其特征在于，所述还包括：
    所述接入网设备向所述第一终端发送用于调度所述直连数据传输的DCI，所述DCI用于指示所述直连数据的结束传输时刻，所述直连数据的结束传输时刻为所述第二终端接收到所述第一终端发送的所述直连数据的时刻；
    获取所述直连数据传输与所述直连数据对应的所述直连HARQ反馈信息传输之间的预定时间间隔；
    根据所述直连数据的结束传输时刻和所述预定时间间隔，确定所述第一时刻。
  16. 根据权利要求15所述的方法，其特征在于，所述预定时间间隔，包括：
    第二恒定常数；或，
    通信协议预定义的时间间隔；或，
    所述接入网设备预配置的时间间隔。
  17. 根据权利要求15所述的方法，其特征在于，所述预定时间间隔，包括：
    所述第一终端上报的所述直连数据传输与所述直连数据对应的所述直连HARQ反馈信息传输之间最大的时间间隔。
  18. 根据权利要求15所述的方法，其特征在于，所述方法还包括：
    接收所述第一终端上报的所述直连数据传输与所述直连数据对应的所述直连HARQ反馈信息传输之间的所述预定时间间隔；或者，
    向所述第一终端发送下行信令，所述下行信令用于指示所述第一终端向所述接入网设备反馈所述预定时间间隔；接收所述第一终端反馈的所述预定时间间隔。
  19. 一种直连通信的数据传输装置，其特征在于，用于第一终端中，所述装置包括：
    发送模块，被配置为当需要在目标时间单元内发送直连混合自动重传请求HARQ反馈信息和上行信息，且所述直连HARQ反馈信息与所述上行信息满足预定时序关系时，在所述目标时间单元内的同一物理层上行信道上向接入网设备发送所述直连HARQ反馈信息和所述上行信息；
    其中，所述直连HARQ反馈信息用于指示直连数据对应的接收状态，所述直连数据为所述第一终端过直连链路向第二终端发送的物理层数据。
  20. 根据权利要求19所述的装置，其特征在于，所述上行信息，包括：调度请求SR、反馈应答信息ACK/NACK、信道状态信息CSI、信道质量指示CQI和上行业务数据中的至少一种。
  21. 根据权利要求19或20所述的装置，其特征在于，所述预定时序关系，包括：
    第一时刻早于第二时刻，且所述第一时刻与所述第二时刻之间的差值绝对值大于预定处理时长；
    其中，所述第一时刻为所述直连HARQ反馈信息在直连反馈信道PSFCH中的结束传输时刻，所述第二时刻为所述上行信息在所述物理层上行信道中的起始传输时刻。
  22. 根据权利要求21所述的装置，其特征在于，所述预定处理时长，包括：
    第一恒定常数；或，
    通信协议预定义的时长；或，
    所述接入网设备预配置的时长。
  23. 根据权利要求21所述的装置，其特征在于，所述装置还包括：接收模块和处理模块；
    所述接收模块，被配置为接收所述接入网设备发送的用于调度所述直连数据传输的DCI，所述DCI用于指示所述直连HARQ反馈信息的起始传输时刻，所述直连HARQ反馈信息的起始传输时刻为所述第二终端向所述第一终端开始发送所述直连HARQ反馈信息的时刻；
    所述处理模块，被配置为获取所述直连HARQ反馈信息的预定传输时长；根据直连HARQ反馈信息的起始时刻和所述预定传输时长，确定所述第一时刻。
  24. 根据权利要求21所述的装置，其特征在于，所述装置还包括：接收模块和处理模块；
    所述接收模块，被配置为接收所述接入网设备发送的用于调度所述直连数据传输的DCI，所述DCI用于指示所述直连数据的结束传输时刻，所述直连数据的结束传输时刻为所述第二终端接收到所述第一终端发送的所述直连数据的时刻；
    所述处理模块，被配置为获取所述直连数据传输与所述直连数据对应的所述直连HARQ反馈信息传输之间的预定时间间隔；根据所述直连数据的结束传输时刻和所述预定时间间隔，确定所述第一时刻。
  25. 根据权利要求24所述的装置，其特征在于，所述预定时间间隔，包括：
    第二恒定常数；或，
    通信协议预定义的时间间隔；或，
    所述接入网设备预配置的时间间隔。
  26. 根据权利要求24所述的装置，其特征在于，所述预定时间间隔，包括：
    所述第一终端上报的所述直连数据传输与所述直连数据对应的所述直连HARQ反馈信息传输之间最大的时间间隔。
  27. 根据权利要求24所述的装置，其特征在于，所述装置还包括：
    所述发送模块，还被配置为所述第一终端向所述接入网设备上报所述预定时间间隔；或者，
    所述第一终端接收所述接入网设备发送的下行信令，根据所述下行信令向所述接入网设备反馈所述预定时间间隔。
  28. 一种直连通信的数据传输装置，其特征在于，用于接入网设备中，所述装置包括：
    接收模块，还被配置为当需要在目标时间单元内接收第一终端发送的直连混合自动重传请求HARQ反馈信息和上行信息，且所述直连HARQ反馈信息与所述上行信息满足预定时序关系时，接收所述第一终端在所述目标时间单元内的同一物理层上行信道上发送的所述直连HARQ反馈信息和所述上行信息；
    其中，所述直连HARQ反馈信息用于指示直连数据对应的接收状态，所述直连数据为所述第一终端过直连链路向第二终端发送的物理层数据。
  29. 根据权利要求28所述的装置，其特征在于，所述上行信息，包括：调度请求SR、反馈应答信息ACK/NACK、信道状态信息CSI、信道质量指示CQI和上行业务数据中的至少一种。
  30. 根据权利要求28或29所述的装置，其特征在于，所述预定时序关系，包括：
    第一时刻早于第二时刻，且所述第一时刻与所述第二时刻之间的差值绝对值大于预定处理时长；
    其中，所述第一时刻为所述直连HARQ反馈信息在直连反馈信道PSFCH中的结束传输时刻，所述第二时刻为所述上行信息在所述物理层上行信道中的起始传输时刻。
  31. 根据权利要求30所述的装置，其特征在于，所述预定处理时长，包括：
    第一恒定常数；或，
    通信协议预定义的时长；或，
    所述接入网设备预配置的时长。
  32. 根据权利要求30所述的装置，其特征在于，所述装置还包括：发送模块和处理模块；
    所述发送模块，被配置为向所述第一终端发送用于调度所述直连数据传输的DCI，所述DCI用于指示所述直连HARQ反馈信息的起始传输时刻，所述直连HARQ反馈信息的起始传输时刻为所述第二终端向所述第一终端开始发送所述直连HARQ反馈信息的时刻；
    所述处理模块，被配置为获取所述直连HARQ反馈信息的预定传输时长；根据直连HARQ反馈信息的起始时刻和所述预定传输时长，确定所述第一时刻。
  33. 根据权利要求30所述的装置，其特征在于，所述装置还包括：发送模块和处理模块；
    所述发送模块，被配置为向所述第一终端发送用于调度所述直连数据传输的DCI，所述DCI用于指示所述直连数据的结束传输时刻，所述直连数据的结 束传输时刻为所述第二终端接收到所述第一终端发送的所述直连数据的时刻；
    所述处理模块，被配置为获取所述直连数据传输与所述直连数据对应的所述直连HARQ反馈信息传输之间的预定时间间隔；根据所述直连数据的结束传输时刻和所述预定时间间隔，确定所述第一时刻。
  34. 根据权利要求33所述的装置，其特征在于，所述预定时间间隔，包括：
    第二恒定常数；或，
    通信协议预定义的时间间隔；或，
    所述接入网设备预配置的时间间隔。
  35. 根据权利要求33所述的装置，其特征在于，所述预定时间间隔，包括：
    所述第一终端上报的所述直连数据传输与所述直连数据对应的所述直连HARQ反馈信息传输之间最大的时间间隔。
  36. 根据权利要求33所述的装置，其特征在于，所述装置还包括：
    所述接收模块，还被配置为接收所述第一终端上报的所述直连数据传输与所述直连数据对应的所述直连HARQ反馈信息传输之间的所述预定时间间隔；或者，
    向所述第一终端发送下行信令，所述下行信令用于指示所述第一终端向所述接入网设备反馈所述预定时间间隔；接收所述第一终端反馈的所述预定时间间隔。
  37. 一种终端，其特征在于，所述终端包括：
    处理器；
    与所述处理器相连的收发器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为加载并执行所述可执行指令以实现如权利要求1至9任一所述的直连通信的数据传输方法。
  38. 一种接入网设备，其特征在于，所述接入网设备包括：
    处理器；
    与所述处理器相连的收发器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为加载并执行所述可执行指令以实现如权利要求10至18任一所述的直连通信的数据传输方法。
  39. 一种直连通信的数据传输系统，其特征在于，所述数据传输系统包括终端和接入网设备；
    所述终端如权利要求19至27任一所述的数据传输装置；
    所述接入网设备如权利要求28至36任一所述的数据传输装置。
  40. 一种直连通信的数据传输系统，其特征在于，所述数据传输系统包括终端和接入网设备；
    所述终端如权利要求37所述的终端；
    所述接入网设备如权利要求38所述的接入网设备。
  41. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有至少一条指令、至少一段程序、代码集或指令集，所述至少一条指令、所述至少一段程序、所述代码集或指令集由所述处理器加载并执行以实现如权利要求1至18任一所述的直连通信的数据传输方法。
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