WO2020087365A1 - 边链路数据的发送和配置方法以及装置 - Google Patents

边链路数据的发送和配置方法以及装置 Download PDF

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Publication number
WO2020087365A1
WO2020087365A1 PCT/CN2018/113088 CN2018113088W WO2020087365A1 WO 2020087365 A1 WO2020087365 A1 WO 2020087365A1 CN 2018113088 W CN2018113088 W CN 2018113088W WO 2020087365 A1 WO2020087365 A1 WO 2020087365A1
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Prior art keywords
target
terminal device
information
side link
identification
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PCT/CN2018/113088
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English (en)
French (fr)
Inventor
李国荣
纪鹏宇
张健
Original Assignee
富士通株式会社
李国荣
纪鹏宇
张健
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 富士通株式会社, 李国荣, 纪鹏宇, 张健 filed Critical 富士通株式会社
Priority to PCT/CN2018/113088 priority Critical patent/WO2020087365A1/zh
Priority to JP2021517678A priority patent/JP7279778B2/ja
Priority to CN201880097691.8A priority patent/CN112703809B/zh
Priority to EP18938425.8A priority patent/EP3876648A4/en
Publication of WO2020087365A1 publication Critical patent/WO2020087365A1/zh
Priority to US17/208,585 priority patent/US12047961B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1822—Automatic repetition systems, e.g. Van Duuren systems involving configuration of automatic repeat request [ARQ] with parallel processes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1896—ARQ related signaling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/121—Wireless traffic scheduling for groups of terminals or users
    • 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
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H04W76/16—Involving different core network technologies, e.g. a packet-switched [PS] bearer in combination with a circuit-switched [CS] bearer
    • 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

Definitions

  • Embodiments of the present invention relate to the field of communication technologies, and in particular, to a method and device for sending and configuring side link data.
  • LTE Long-term evolution
  • V2X Vehicle to Everything
  • V2V vehicle-to-vehicle
  • V2I vehicle-to-roadside equipment
  • V2P vehicle-to-pedestrian
  • V2X services can be provided through the PC5 interface and / or Uu interface.
  • V2X services transmitted through the PC5 interface are provided by V2X sidelink (SL, sidelink) communication.
  • SL, sidelink V2X sidelink
  • This is a communication mode in which terminal devices can directly communicate with each other through the PC5 interface.
  • LTE supports this communication mode when the terminal equipment is served by E-UTRAN and when the terminal equipment is outside the coverage of E-UTRA.
  • the side link communication mainly considers the use of broadcast (broadcast) to send side link data.
  • broadcast broadcast
  • NR V2X in order to support more advanced V2X application scenarios and services, unicast (unicast), multicast (groupcast) and broadcast (broadcast) methods can be used to send sidelink data.
  • NR V2X For NR V2X, it was agreed in the 3GPP physical layer discussion that the physical layer needs to know whether specific data is sent on the side link in unicast, multicast or broadcast mode. And for unicast or multicast, the physical layer passes layer 1 (layer 1) destination (or destination) ID (destination ID) and another layer 1 ID (probably source ID) in the control information on the side link. And for unicast or multicast, the physical layer supports side chain hybrid automatic repeat request (HARQ, Hybrid Automatic Repeat reQuest) feedback and HARQ merge operations.
  • HARQ Hybrid Automatic Repeat reQuest
  • the target identification for a specific group for multicast (which may be called the target terminal device group identification) and the target identification for unicast for the target terminal device (which may be called target terminal device identification) need to be Visible in layer 2, the source terminal device ID should also be visible in layer 2.
  • the side link grant (SL grant) sent by the network device to the sending terminal device in LTE can be used by the sending terminal device to send To the side link data to any other terminal device, the media access control (MAC, Media) Control layer of the sending terminal device selects the target address for the side link transmission according to the priority of the logical channel with the data to be sent, and uses The sidelink resource indicated by SL sends the logical channel data corresponding to the target address.
  • SL grant side link grant
  • MAC Media
  • the terminal device may have unicast services for more than one target terminal device at the same time, or have multicast services for more than one target terminal device group at the same time, or have both unicast and multicast services. Since HARQ operations are supported for the unicast or multicast services on Sidelink, the sending terminal device needs to know whether the SL sent by the network device is used to send HARQ initial transmission data for a certain target terminal device or for sending a specific HARQ retransmission data of the target terminal device.
  • the prior art cannot achieve that the network device indicates the information of the target terminal device to the sending terminal device, so it is difficult for the sending terminal device to use appropriate resources for side link transmission in response to the target terminal device's feedback or status report, which may reduce
  • the channel utilization rate or transmission reliability cannot meet the quality of service (QoS) requirements of V2X services.
  • QoS quality of service
  • embodiments of the present invention provide a method and apparatus for sending and configuring side link data.
  • a method for transmitting side link data including:
  • the terminal device receives control information sent by the network device and includes a side link authorization (SL grant), where the control information further indicates at least one target information targeted by the side link authorization;
  • SL grant side link authorization
  • an apparatus for transmitting side link data including:
  • a receiving unit which receives control information including side link authorization sent by the network device, wherein the control information also indicates at least one target information targeted by the side link authorization;
  • a target determination unit that determines at least one target and / or logical channel based on the target information
  • a sending unit which sends the side link data of the at least one target and / or logical channel according to the side link authorization.
  • a method for configuring side link data including:
  • the network device sends control information including SL to the terminal device, where the control information also indicates at least one target information targeted by the SL.
  • an apparatus for configuring side link data including:
  • a sending unit that sends control information including a side link authorization to the terminal device, where the control information also indicates at least one target information for which the side link authorization is targeted.
  • a communication system including:
  • a network device that sends control information including side link authorization to the first terminal device, where the control information also indicates at least one target information targeted by the side link authorization;
  • a first terminal device that determines at least one target and / or logical channel based on the target information; and transmits side link data of the at least one target and / or logical channel according to the side link authorization;
  • a second terminal device that receives the side link data sent by the first terminal device.
  • the beneficial effect of the embodiment of the present invention is: by including the control information of the side link authorization to indicate the target information targeted by the side link authorization, the network device can be used to schedule the HARQ initial transmission or retransmission resources for different target terminal devices Let the sending terminal equipment know the target terminal equipment corresponding to the side link authorization, and use appropriate resources for side link transmission, so as to improve channel utilization or transmission reliability and meet the service quality requirements of V2X services.
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a method for transmitting side link data according to an embodiment of the present invention
  • FIG. 3 is an exemplary scene diagram of an embodiment of the present invention.
  • FIG. 4 is an exemplary diagram of a process of determining at least one target and / or logical channel according to an embodiment of the present invention
  • FIG. 5 is another exemplary diagram of a process of determining at least one target and / or logical channel according to an embodiment of the present invention
  • FIG. 6 is another exemplary diagram of a process of determining at least one target and / or logical channel according to an embodiment of the present invention
  • FIG. 7 is a schematic diagram of configuration, transmission, and reception of side link data according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a method for configuring side link data according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of an apparatus for transmitting side link data according to an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of an apparatus for configuring side link data according to an embodiment of the present invention.
  • FIG. 11 is a schematic diagram of a network device according to an embodiment of the present invention.
  • FIG. 12 is a schematic diagram of a terminal device according to an embodiment of the present invention.
  • the terms “first”, “second”, etc. are used to distinguish different elements in terms of titles, but do not mean the spatial arrangement or chronological order of these elements, and these elements should not be used by these terms Restricted.
  • the term “and / or” includes any and all combinations of one or more of the associated listed terms.
  • the terms “comprising”, “including”, “having”, etc. refer to the presence of stated features, elements, elements or components, but do not exclude the presence or addition of one or more other features, elements, elements or components.
  • the term “communication network” or “wireless communication network” may refer to a network that conforms to any of the following communication standards, such as Long Term Evolution (LTE, Long Term Evolution), Enhanced Long Term Evolution (LTE-A, LTE- Advanced), wideband code division multiple access (WCDMA, Wideband Code Division Multiple Access), high-speed message access (HSPA, High-Speed Packet Access) and so on.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution
  • LTE-A Long Term Evolution-A
  • LTE- Advanced wideband code division multiple access
  • WCDMA Wideband Code Division Multiple Access
  • High-speed message access High-Speed Packet Access
  • the communication between devices in the communication system can be performed according to any stage of the communication protocol, for example, it can include but is not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, and 5G , New Radio (NR, New Radio), etc., and / or other communication protocols that are currently known or will be developed in the future.
  • Network device refers to, for example, a device that connects a terminal device to a communication network and provides services for the terminal device in a communication system.
  • Network equipment may include but is not limited to the following equipment: base station (BS, Base Station), access point (AP, Access Point), transmission and reception point (TRP, Transmission Reception Point), broadcast transmitter, mobile management entity (MME, Mobile Management), gateway, server, radio network controller (RNC, Radio Network Controller), base station controller (BSC, Base Station Controller), etc.
  • the base station may include but is not limited to: Node B (NodeB or NB), evolved Node B (eNodeB or eNB) and 5G base station (gNB), etc., and may also include a remote radio head (RRH, Remote Radio Head) , Remote Radio Unit (RRU, Remote Radio Unit), relay (relay) or low power node (such as femeto, pico, etc.).
  • NodeB Node B
  • eNodeB or eNB evolved Node B
  • gNB 5G base station
  • RRH Remote Radio Head
  • RRU Remote Radio Unit
  • relay relay
  • low power node such as femeto, pico, etc.
  • base station may include some or all of their functions, and each base station may provide communication coverage for a specific geographic area.
  • the term "cell” may refer to a base station and / or its coverage area, depending on the context in which the term is used.
  • the term "user equipment” (UE, User Equipment) or “terminal equipment” (TE, Terminal Equipment or Terminal Device) refers to, for example, a device that accesses a communication network through a network device and receives network services.
  • the terminal device may be fixed or mobile, and may also be called a mobile station (MS, Mobile Station), terminal, subscriber station (SS, Subscriber Station), access terminal (AT, Access Terminal), station, and so on.
  • terminal devices may include but are not limited to the following devices: cellular phones (Cellular), in-vehicle communication modules, personal digital assistants (PDA, Personal Digital Assistant), wireless modems, wireless communication devices, handheld devices, machine-type communication devices, laptops Computers, cordless phones, smart phones, smart watches, digital cameras, etc.
  • Cellular Cellular
  • PDA Personal Digital Assistant
  • wireless modems wireless communication devices
  • handheld devices machine-type communication devices
  • laptops Computers laptops Computers
  • cordless phones smart phones
  • smart watches digital cameras
  • the terminal device may also be a machine or device that performs monitoring or measurement.
  • the terminal device may include but is not limited to: machine type communication (MTC, Machine Type Communication) terminal, Vehicle-mounted communication terminals, device-to-device (D2D, Device to Device) terminals, machine-to-machine (M2M, Machine to Machine) terminals, and so on.
  • MTC Machine Type Communication
  • D2D Device to Device
  • M2M Machine to Machine
  • network side or “network device side” refers to a side of the network, which may be a certain base station, or may include one or more network devices as above.
  • user side or “terminal side” or “terminal device side” refers to the side of the user or terminal, which may be a certain UE or may include one or more terminal devices as above.
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present invention, and schematically illustrates a case where a terminal device and a network device are taken as an example.
  • the communication system 100 may include a network device 101 and terminal devices 102, 103.
  • FIG. 1 only uses two terminal devices and one network device as examples, but the embodiment of the present invention is not limited thereto.
  • the network device 101 and the terminal devices 102 and 103 may perform existing service or service transmission that can be implemented in the future.
  • these services may include but are not limited to: enhanced mobile broadband (eMBB, enhanced Mobile Broadband), large-scale machine type communication (mMTC, massive Machine Type Communication), and highly reliable low-latency communication (URLLC, Ultra-Reliable and Low -Latency Communication), etc.
  • eMBB enhanced mobile broadband
  • mMTC large-scale machine type communication
  • URLLC Ultra-Reliable and Low -Latency Communication
  • FIG. 1 shows that both terminal devices 102 and 103 are within the coverage of the network device 101, but the present invention is not limited thereto. Neither terminal device 102, 103 may be within the coverage of the network device 101, or one terminal device 102 may be within the coverage of the network device 101 and the other terminal device 103 may be outside the coverage of the network device 101.
  • side link transmission can be performed between the two terminal devices 102 and 103.
  • both terminal devices 102 and 103 may perform side-link transmission within the coverage of the network device 101 to realize V2X communication, or may perform side-link transmission outside the coverage of the network device 101 to achieve V2X.
  • one terminal device 102 may be within the coverage of the network device 101 and another terminal device 103 to perform side-chain transmission outside the coverage of the network device 101 to achieve V2X communication.
  • An embodiment of the present invention provides a method for transmitting side link data, which will be described from the side of a transmitting device (also referred to as a first device).
  • the sending device is a terminal device, but the present invention is not limited to this, for example, it may also be a roadside device or a network device.
  • FIG. 2 is a schematic diagram of a method for transmitting side link data according to an embodiment of the present invention. As shown in FIG. 2, the method includes:
  • Step 201 The terminal device receives control information including the side link authorization sent by the network device, where the control information further indicates at least one target information targeted by the side link authorization;
  • Step 202 the terminal device determines at least one target and / or logical channel according to the target information
  • Step 203 The terminal device sends the side link data of the at least one target and / or logical channel according to the side link authorization.
  • the target information includes at least one of the following: target terminal device identification, target terminal device group identification, link identification or connection identification, hybrid automatic repeat request (HARQ) entity identification, hybrid automatic repeat request (HARQ) Process ID, source terminal device ID and target terminal device (group) ID, ID calculated based on the target terminal device (group) ID, and ID calculated based on the source terminal device ID and target terminal device (group) ID.
  • HARQ hybrid automatic repeat request
  • HARQ hybrid automatic repeat request
  • Process ID source terminal device ID and target terminal device (group) ID
  • ID calculated based on the target terminal device (group) ID ID calculated based on the source terminal device ID and target terminal device (group) ID
  • the present invention is not limited to this, and may also be other information indicating the target.
  • the target information when the target information includes the target terminal device identification, the target information may include the Destination ID of the target terminal device provided by the V2X application layer, or the target address or identification of the target terminal device configured by the core network, or the target terminal device configured by the base station
  • the target address or identifier of the network such as the temporary identifier of the wireless network (RNTI, Radio Network Identifier), but not limited to this;
  • the target terminal device identification is the provided Destination ID or a part of the configured target address or identification, for example, the target terminal device identification is the highest or lowest of the Y bits corresponding to the provided Destination ID or the configured target address or identification Or X bits, X and Y are positive integers.
  • the target terminal device group identifier may be the Destination ID of the target terminal device group provided by the V2X application layer, or the target group address of the target terminal device group configured by the core network or The identification, or the target group address or identification of the target terminal equipment group configured by the base station, such as the group radio network temporary identification (group RNTI), but not limited to this;
  • group RNTI group radio network temporary identification
  • the target terminal device group ID is a part of the provided Destination ID or configured target group address or ID; for example, the target terminal device group ID is the Y bit corresponding to the provided Destination ID or the configured target group address or ID
  • the highest or lowest or X bits, X, Y are positive integers.
  • the target information when the target information includes a link identifier or a connection identifier, the target information may include the link identifier or the link identifier of the sender terminal device for the target terminal device and / or for the target terminal device group and / or for the broadcast side link or Connection logo.
  • the sending terminal device can know in advance the correspondence between the link identifier or the connection identifier and the sidelink transmission.
  • the corresponding relationship may be provided by the V2X application layer, or allocated by the core network, or allocated by the base station, or pre-configured or predefined.
  • the terminal device sends the correspondence to the base station, for example, through an RRC message such as a Sidelink UEInformation message or a UEAssistantInformation message.
  • the core network or the terminal device sends the corresponding relationship to the base station.
  • the terminal device may send the link identifier or the connection identifier of the logical channel group to the base station in the side link buffer status report (SL BSR).
  • SL BSR side link buffer status report
  • the target information when the target information includes a hybrid automatic repeat request (HARQ) entity identifier and / or HARQ process identifier, the target information may include the HARQ entity identifier and / or HARQ process identifier in the terminal device at the sending end.
  • the terminal device at the sending end may know the correspondence between the HARQ entity and the HARQ entity identifier in advance, and the correspondence is configured by the base station to the terminal device, for example, through an RRCreconfiguration message.
  • the source terminal device identification and the target terminal device (group) identification included in the target information may be the Source ID and Destination (Destination ( group) ID, or the address or identification of the source terminal device configured by the core network and the address or identification of the target terminal device (group), or the address or identification of the source terminal device configured by the base station and the address or identification of the target terminal device (group);
  • the target information includes the provided Source ID + Destination (group) ID or the configured source terminal device address or identifier + target terminal device (group) address or identifier corresponding to the highest or lowest of the Y bits or X Bits, X and Y are positive integers.
  • the identification may be calculated through a specific function (eg, a hash function) based on the target terminal device's C-RNTI or destination ID; and / or
  • the target information includes the identification calculated based on the source terminal device identification and the target terminal device (group) identification, it can be based on the source terminal device's SL-RNTI or C-RNTI or Source ID and the target terminal device (group) C-RNTI or destination ID, which is calculated by a specific function (such as a hash function).
  • a specific function such as a hash function
  • the sending terminal device may know in advance the correspondence between the target terminal device (group) ID and the calculated ID, or the correspondence between the source terminal device ID and the target terminal device (group) ID and the calculated ID .
  • the corresponding relationship may be configured by the base station to the terminal device (for example, through an RRC reconfiguration message), or provided by the V2X application layer, or configured by the core network to the terminal.
  • FIG. 3 is an exemplary scenario diagram of an embodiment of the present invention.
  • a mode (mode-1) scheduled by a base station
  • exemplary transmission of side link data is described.
  • the base station gNB or eNB
  • DCI downlink control information
  • the sending device such as UE1
  • DCI1, DCI2, and DCI3 each Each DCI contains SL grant.
  • the UE 1 uses the received resources and / or parameters indicated by the SL grant to transmit V2X or D2D data on the side link.
  • unicast transmission is used between UE1 and UE2 for sidelink transmission.
  • the base station decides that the sidelink authorization corresponding to the sidelink transmission is included in DCI1.
  • Indicate the target information (such as UE 2 identification) for the side link authorization.
  • multicast is used for sidelink transmission.
  • the base station determines that the sidelink authorization corresponding to the sidelink transmission is included in DCI2, then DCI2 sent by the base station also indicates the sidelink authorization Targeted information (for example, the group ID of group 1).
  • the target information may be included in the control information.
  • DCI contains a field to indicate the target information; for example: destination ID field, its size can be 8bits, 16bits, 24bits, etc.
  • the target information may be indicated by the resource where the control information is located.
  • there is a mapping relationship between the physical resources where the DCI is located and the target information and the mapping relationship is configurable.
  • there is a mapping relationship between the time start position or frequency start position of the search space where the DCI is located and the target information, and / or the time start position or frequency of the control resource set (CORESET) where the DCI is located There is a mapping relationship between the starting position and the target information.
  • the target information may be indicated by scrambling the cyclic redundancy check (CRC) of the control information using the target information.
  • CRC cyclic redundancy check
  • the DCI CRC is scrambled by the target information, that is, the DCI can address the target information (for example, RNTI).
  • the target information may indicate that the side link authorization uses broadcast to send the side link data.
  • the MAC entity of the terminal device is in the process of determining at least one target and / or logical channel (for example, logical channel priority processing (LCP, Logical Channel Prioritization) process, you need to select the target address or logical channel selection; you can select at least one logical channel (LCH) from the logical channels with data to be transmitted, and assign the side chain in descending order of logical channel priority
  • LCP logical channel priority processing
  • LCH logical channel priority processing
  • the target information may be layer 2 information or information of a layer higher than layer 2 (that is, high-level information).
  • Layer 1 includes, for example, the physical layer
  • layer 2 includes, for example, the MAC layer, the radio link control (RLC, Radio Link Control) layer, etc.
  • the layer higher than layer 2 may include radio resource control (RRC) , Radio (Resource) Control layer, V2X application layer (V2X application layer), the layer above the access layer, etc .; for the specific definition of each protocol layer, please refer to related technologies.
  • FIG. 4 is an exemplary diagram of a process (for example, LCP process) for determining at least one target and / or logical channel according to an embodiment of the present invention; where the side link authorization includes the target ID or group ID of layer 2 or higher layers.
  • the terminal device at the transmitting end uses the resources indicated by the side link authorization in DCI 1 to send data directed to the multicast target ID 2.
  • DCI2 including the side link authorization indicates the unicast target ID 1
  • the terminal device at the transmitting end uses the resources indicated by the side link authorization in DCI 2 to send the data for the unicast target ID of 1, and so on.
  • a target address related to the target information indicated by the side link authorization and its logical channel may be selected.
  • the determining at least one target and / or logical channel according to the target information includes: selecting at least one target whose identity is consistent with the target information (eg, the same ID); and determining the corresponding to the selected at least one target Logical channel.
  • the selection of the target address may be as follows:
  • a logical channel related to the target information indicated by the side link authorization may be selected.
  • the determining at least one target and / or logical channel according to the target information includes selecting at least one logical channel with a corresponding target identifier that is consistent with the target information (for example, having the same ID).
  • the modification of the MAC specification taking the target ID as an example, for example, regarding the selection of a logical channel may be as follows:
  • the target information is layer 1 information; the terminal device may map the layer 1 information to at least one layer 2 information or information of a layer higher than layer 2 (high-level information).
  • the terminal device may receive the mapping relationship information between the layer 1 information and the layer 2 information or the layer information higher than layer 2 sent by the network device; or the mapping relationship may also be predefined.
  • the mapping relationship is: L1ID is the high X bits or low X bits (X is a positive integer) of L2 destination ID or high-level destination ID.
  • FIG. 5 is another exemplary diagram of a process (for example, an LCP process) of determining at least one target and / or logical channel according to an embodiment of the present invention; wherein the side link authorization includes the target ID or group ID of layer 1.
  • the side link authorization includes the target ID or group ID of layer 1.
  • DCI 1 including the side link authorization indicates the multicast target ID 2
  • the transmitting terminal device maps it and uses the resources indicated by the side link authorization in DCI 1 to send the multicast targeting Data with a target ID of 2.
  • DCI2 including the sidelink authorization indicates the unicast target ID1
  • the transmitting terminal device maps it and uses the resources indicated by the sidelink authorization in DCI2 to send the data for the unicast target ID of 1, And so on.
  • FIG. 6 is another exemplary diagram of a process (for example, an LCP process) of determining at least one target and / or logical channel according to an embodiment of the present invention; wherein the side link authorization includes the target ID or group ID of layer 1.
  • the layer 1 ID included in DCI 2 can be mapped to two layer 2 IDs (unicast target ID 1 and multicast target ID 2).
  • the selection of the target address may be as follows:
  • the modification of the MAC specification taking the target ID as an example, for example, regarding the selection of a logical channel may be as follows:
  • the target information may be a link identifier or a connection identifier; the terminal device may select at least one target and / or logical channel according to the link identifier or the connection identifier. For example, a link or target address and a logical channel related to (or corresponding to) the link identifier or connection identifier indicated by the control information may be selected; for another example, a identifier whose identifier is consistent with the target information (such as the same ID) may be selected At least one target, and determining the logical channel corresponding to the selected at least one target.
  • the terminal device may select a logical channel related to the target information indicated by the control information. For example, at least one logical channel whose corresponding link identifier is consistent with the target information (for example, with the same ID) is selected.
  • the target information is a hybrid automatic repeat request (HARQ) entity identifier; the HARQ entity identifier may be a HARQ entity ID.
  • the terminal device may send the initial transmission or retransmission data of the HARQ process of the HARQ entity whose identifier is the same as the HARQ entity identifier (for example, the same ID) in the resource indicated by the side link authorization according to the HARQ entity identifier. For example, if the control information indicates HARQ retransmission, the MAC layer retransmits the last transmitted MAC PDU of the HARQ process of the HARQ entity without selecting the logical channel.
  • HARQ hybrid automatic repeat request
  • the target information is a hybrid automatic repeat request (HARQ) process identifier; the HARQ process identifier may be a HARQ process ID.
  • the terminal device may send the initial transmission or retransmission data of the HARQ process whose identifier is the same as the HARQ process identifier (for example, the same ID) in the resource indicated by the side link authorization according to the HARQ process identifier.
  • HARQ hybrid automatic repeat request
  • the target information is a hybrid automatic repeat request (HARQ) entity ID and a process ID; the HARQ entity ID may be a HARQ entity ID, and the HARQ process ID may be a HARQ process ID.
  • the terminal device may send, according to the HARQ entity identifier and the HARQ process identifier, the HARQ entity identifier whose identity is the same as the HARQ entity identifier and the HARQ process identifier (for example, the same ID) in the resource indicated by the side link authorization Initial transmission or retransmission of data in the HARQ process.
  • HARQ hybrid automatic repeat request
  • the target information is a source terminal device identification and a target terminal device (group) identification.
  • the target information is an identifier calculated according to the target terminal device (group) identifier, or an identifier calculated based on the source terminal device identifier and the target terminal device (group) identifier; the terminal device may map the calculated identifier to at least one Target terminal device (group) identification, or source terminal device identification and target terminal device (group) identification.
  • the target address related to the target information indicated by the control information and its logical channel may be selected.
  • the determining at least one target and / or logical channel according to the target information includes: selecting at least one target whose identity is consistent with the target information (eg, the same ID); and determining the corresponding to the selected at least one target Logical channel.
  • a logical channel related to the target information indicated by the control information may be selected.
  • the determining at least one target and / or logical channel according to the target information includes selecting at least one logical channel whose corresponding target identifier is consistent with the target information (for example, the same ID).
  • the above has schematically described the control information and target information of the embodiment of the present invention, but the present invention is not limited thereto.
  • the interaction process of the network device (such as a base station), the first terminal device (the sending end of the side link data), and the second terminal device (the receiving end of the side link data) is schematically described below.
  • FIG. 7 is a schematic diagram of configuration, transmission, and reception of side link data according to an embodiment of the present invention. As shown in FIG. 7, the process may include:
  • Step 701 providing V2X service information
  • the first terminal device may provide the base station with at least one of the following information in an RRC message (such as Sidelink UE Information or UE Assistant Information): QoS characteristics of the V2X service of interest, service type, target address and frequency, link identification or connection Correspondence between the identifier and the transmission of the sidelink, correspondence between the identifier of the target terminal device and the calculated identifier, correspondence between the identifier of the source terminal device and the identifier of the target terminal device and the calculated identifier, etc.
  • RRC message such as Sidelink UE Information or UE Assistant Information
  • Step 702 perform RRC configuration
  • the base station configures side link related information through RRC messages (such as RRC Reconfiguration messages), such as at least one of the following information: logical channel, logical channel group, QoS parameter, radio bearer, resource pool, side link target terminal device Group's target address or ID, link ID or connection ID and sidelink transmission correspondence, HARQ entity and HARQ entity ID correspondence, source terminal device address or ID and target terminal device (group) address or ID, target terminal The correspondence between the device (group) ID and the calculated ID, etc.
  • RRC messages such as RRC Reconfiguration messages
  • RRC Reconfiguration messages such as at least one of the following information: logical channel, logical channel group, QoS parameter, radio bearer, resource pool, side link target terminal device Group's target address or ID, link ID or connection ID and sidelink transmission correspondence, HARQ entity and HARQ entity ID correspondence, source terminal device address or ID and target terminal device (group) address or ID, target terminal The correspondence between the device (group) ID and the calculated ID, etc.
  • the process may also include:
  • Step 703 When the first terminal device needs to send side link data, it sends a scheduling request to the network device;
  • the terminal device may send a scheduling request (SR, Scheduling Request) to the base station.
  • SR Scheduling Request
  • the SR may correspond to at least one (eg, specific) sidelink logical channel.
  • the correspondence between the SR configuration and the sidelink logical channel is pre-configured by the base station, or is pre-defined.
  • Step 704 the network device sends control information including uplink authorization
  • the base station sends a physical downlink control channel (PDCCH, Physical Downlink Control Channel), which carries DCI containing UL grant.
  • PDCCH Physical Downlink Control Channel
  • Step 705 The first terminal device sends an edge link buffer status report to the network device according to the uplink authorization to request the edge link authorization.
  • the terminal device sends SL BSR (Buffer status) report on the uplink resource indicated by UL grant.
  • the BSR carries information such as target identification, LCG ID (logical channel group identification), buffer size (buffer size) and so on.
  • the target identification includes, for example, at least one of the following: a target address to send data to, a link identification, a connection identification, a HARQ entity identification, a HARQ process identification, an identification calculated based on the target terminal device (group) identification, and a source terminal device identification and The target terminal device (group) identifies the calculated identifier.
  • Step 706 The network device sends control information including the side link authorization to the first terminal device, where the control information further indicates target information targeted by the side link authorization;
  • the base station After receiving the SL BSR sent by the terminal device (UE1), the base station knows that the terminal device may also have unicast data for another terminal device (UE2) and multicast data for another group (group 1) And broadcast data to neighboring terminal devices.
  • the base station sends a PDCCH to the terminal device (UE1), which carries DCI containing SL grant.
  • the base station may send a SL grant for each target identifier (such as a target ID or link ID, etc.) that UE1 has data to send, or it may send a SL grant for more than one target identifier (such as a target ID or link ID, etc.). .
  • Step 707 The first terminal device determines at least one target and / or logical channel according to the target information
  • the terminal device can organize MAC PDUs according to resources and identification information indicated by SL grant.
  • Step 708 The first terminal device sends the side link data of the at least one target and / or logical channel according to the side link authorization.
  • the first terminal device sends the MAC PDU to the second terminal device on the resources indicated by the side link authorization.
  • FIG. 7 only schematically illustrates the embodiments of the present invention, but the present invention is not limited thereto.
  • the execution order between the various steps can be adjusted appropriately, and in addition, other steps can be added or some of the steps can be reduced.
  • Those skilled in the art can make appropriate modifications based on the above content, and are not limited to the description in FIG. 7 described above.
  • the side link grant may also be associated with (or correspond to) at least one of the following: subcarrier spacing, physical side link shared channel (PSSCH) transmission length, and carrier information.
  • subcarrier spacing may also be associated with (or correspond to) at least one of the following: subcarrier spacing, physical side link shared channel (PSSCH) transmission length, and carrier information.
  • PSSCH physical side link shared channel
  • the subcarrier interval configured for the logical channel may include the subcarrier interval associated with the side link grant, and / or the PSSCH transmission length configured for the logical channel may be greater than or equal to the The transmission length of the PSSCH associated with the side link authorization, and / or the allowed carrier on which the logical channel is configured may include carrier information associated with the side link authorization.
  • the network device can schedule different resources for different target terminal devices, so that the sending terminal device knows the The target terminal equipment corresponding to the side link authorization, and using appropriate resources for side link transmission, can improve channel utilization or transmission reliability and meet the service quality requirements of V2X services.
  • the network device and the sending terminal device can also agree on the corresponding relationship between the resources indicated by the side link authorization and the target terminal device, and the target ID can no longer be carried in the MAC PDU subheader of the side link data Or, the length of the target ID can be reduced, the overhead of the MAC PDU can be reduced, and the processing of the MAC PDU by the terminal device at the receiving end can be simplified.
  • An embodiment of the present invention provides a method for configuring side link data, which will be described from the network device side, and the same content as that in Embodiment 1 will not be repeated.
  • FIG. 8 is a schematic diagram of a method for configuring side link data according to an embodiment of the present invention, and shows the situation on the network device side. As shown in Figure 8, the method includes:
  • step 804 the network device sends control information including SL to the terminal device, where the control information also indicates at least one target information targeted by the SL.
  • the method may further include:
  • Step 801 the network device receives a scheduling request sent by the terminal device
  • Step 802 the network device sends control information including uplink authorization to the terminal device.
  • Step 803 The network device receives a side link buffer status report sent by the terminal device to request the side link authorization.
  • FIG. 8 only schematically illustrates the embodiments of the present invention, but the present invention is not limited thereto.
  • the execution order between the various steps can be adjusted appropriately, and in addition, other steps can be added or some of the steps can be reduced.
  • Those skilled in the art can make appropriate modifications based on the above content, and are not limited to the description of FIG. 8 described above.
  • the target information includes at least one of the following: target terminal device identification, target terminal device group identification, link identification or connection identification, hybrid automatic repeat request (HARQ) entity identification, hybrid automatic repeat request (HARQ) Process ID, source terminal device ID and target terminal device ID, source terminal device ID and target terminal device group ID, ID calculated based on the target terminal device ID, ID calculated based on the target terminal device group ID, based on the source terminal device
  • the logo and the target terminal device logo are calculated based on the source terminal device logo and the target terminal device group logo.
  • the target information is included in the control information.
  • the target information is indicated by the resource where the control information is located.
  • the target information corresponds to the time start position and / or frequency start position of the search space where the control information is located, and / or, the target information corresponds to the time start of the control resource set where the control information is located Position and / or frequency start position.
  • the target information is indicated by scrambling the cyclic redundancy check (CRC) of the control information using the target information.
  • CRC cyclic redundancy check
  • the target information is layer 2 information or information of a layer higher than layer 2.
  • the target information is layer 1 information; the method further includes: sending between the layer 1 information of the target information and layer 2 information or information of a layer higher than layer 2 to the terminal device Mapping information.
  • the network device can schedule different resources for different target terminal devices, so that the sending terminal device knows the The target terminal device corresponding to the side link authorization and adopting appropriate resources for side link transmission can improve channel utilization or transmission reliability and meet the service quality requirements of the V2X service.
  • the network device and the sending terminal device can also agree on the corresponding relationship between the resources indicated by the side link authorization and the target terminal device, and the target ID can no longer be carried in the MAC PDU subheader of the side link data Or, the length of the target ID can be reduced, the overhead of the MAC PDU can be reduced, and the processing of the MAC PDU by the terminal device at the receiving end can be simplified.
  • An embodiment of the present invention provides an apparatus for transmitting side link data.
  • the apparatus may be, for example, a terminal device, or may be one or some components or components configured on the terminal device.
  • the present invention is not limited to this, for example, it may be a roadside device or a network device, or it may be one or some components or components configured on the roadside device or the network device.
  • the same content of this embodiment 3 as that of embodiment 1 will not be repeated here.
  • FIG. 9 is a schematic diagram of an apparatus for transmitting side link data according to an embodiment of the present invention.
  • the apparatus 900 for transmitting side link data includes:
  • a receiving unit 901 which receives control information sent by a network device and includes side link authorization, where the control information further indicates at least one target information targeted by the side link authorization;
  • a target determination unit 902 which determines at least one target and / or logical channel based on the target information
  • a sending unit 903 which sends the side link data of the at least one target and / or logical channel according to the side link authorization.
  • the target information includes at least one of the following: target terminal device identification, target terminal device group identification, link identification or connection identification, hybrid automatic retransmission request entity identification, hybrid automatic retransmission request process identification, Source terminal device ID and target terminal device ID, source terminal device ID and target terminal device group ID, ID calculated based on target terminal device ID, ID calculated based on target terminal device group ID, based on source terminal device ID and target terminal device ID
  • the calculated identifier is an identifier calculated based on the source terminal device identifier and the target terminal device group identifier. Refer to Embodiment 1 for the specific content of the target information.
  • the target information is included in the control information.
  • the target information is indicated by the resource where the control information is located.
  • the target information corresponds to the time start position and / or frequency start position of the search space where the control information is located, and / or, the target information corresponds to the set of control resources where the control information is located The time start position and / or frequency start position.
  • the target information is indicated by scrambling the cyclic redundancy check of the control information using the target information.
  • the target information is layer 2 information or information of a layer higher than layer 2.
  • the target information is layer 1 information
  • the apparatus 900 for transmitting side link data may further include:
  • the mapping unit 904 maps the layer 1 information to at least one layer 2 information or information of a layer higher than layer 2.
  • the receiving unit 901 is further configured to: receive the mapping relationship information between the layer 1 information and the layer 2 information or the information of the layer higher than layer 2 sent by the network device .
  • the target determination unit 902 is configured to: select at least one target that is consistent with the target information; and determine a logical channel corresponding to the selected at least one target.
  • the target determination unit 902 is configured to select at least one logical channel corresponding to the target identifier and the target information.
  • the target determination unit 902 selects at least one logical channel from the logical channels with data to be transmitted, and allocates the resources of the side link authorization indication to the selected Describe at least one logical channel.
  • the side link authorization is also associated with at least one of the following: subcarrier spacing, physical side link shared channel transmission length, and carrier information.
  • the sub-carrier interval configured for the logical channel includes the sub-carrier interval associated with the side link authorization; and / or
  • the transmission length of the physical side link shared channel where the logical channel is configured is greater than or equal to the transmission length of the physical side link shared channel associated with the side link authorization; and / or
  • the allowed carrier on which the logical channel is configured includes carrier information associated with the side link authorization.
  • the sending unit 903 is further configured to send a scheduling request to the network device when the side link data needs to be sent; the receiving unit 901 is further configured to receive the Control information of uplink authorization; and the sending unit 903 is further configured to send a side link buffer status report to the network device according to the uplink authorization to request the side link authorization.
  • the side link buffer status report includes a target identification.
  • the target identification includes, for example, at least one of the following: a target address to send data to, a link identification, a connection identification, a HARQ entity identification, a HARQ process identification, an identification calculated based on the target terminal device (group) identification, and a source terminal device identification and The target terminal device (group) identifies the calculated identifier.
  • the apparatus 900 for transmitting side link data may further include other components or modules.
  • the apparatus 900 for transmitting side link data may further include other components or modules.
  • FIG. 9 only exemplarily shows the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection may be used.
  • the above components or modules may be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc .; the implementation of the present invention does not limit this.
  • the network device can schedule different resources for different target terminal devices, so that the sending terminal device knows the The target terminal device corresponding to the side link authorization and adopting appropriate resources for side link transmission can improve channel utilization or transmission reliability and meet the service quality requirements of the V2X service.
  • the network device and the sending terminal device can also agree on the correspondence between the resources indicated by the side link authorization and the target terminal device, and the target ID can no longer be carried in the MAC PDU subheader of the side link data Or, the length of the target ID can be reduced, the overhead of the MAC PDU can be reduced, and the processing of the MAC PDU by the terminal device at the receiving end can be simplified.
  • An embodiment of the present invention provides a device for configuring side link data.
  • the apparatus may be, for example, a network device, or may be one or some components or components configured on the network device; Or some parts or components.
  • the same content of this Embodiment 4 as that of Embodiment 2 will not be repeated here.
  • an apparatus 1000 for configuring side link data includes:
  • a sending unit 1001 which sends control information including a side link authorization to a terminal device, where the control information also indicates at least one target information targeted by the side link authorization.
  • the device 1000 for configuring side link data may further include:
  • a receiving unit 1002 which receives the scheduling request sent by the terminal device
  • the sending unit 1001 may also be used to send control information including uplink authorization to the terminal device; and the receiving unit 1002 may also be used to receive an edge sent by the terminal device for requesting the side link authorization Link cache status report.
  • the target information includes at least one of the following: target terminal device identification, target terminal device group identification, link identification or connection identification, hybrid automatic retransmission request entity identification, hybrid automatic retransmission request process identification, Source terminal device ID and target terminal device ID, source terminal device ID and target terminal device group ID, ID calculated based on target terminal device ID, ID calculated based on target terminal device group ID, source terminal device ID and target terminal device ID
  • the calculated identifier is an identifier calculated based on the source terminal device identifier and the target terminal device group identifier. Refer to Embodiment 1 for the specific content of the target information.
  • the device 1000 for configuring side link data may further include other components or modules.
  • the device 1000 for configuring side link data may further include other components or modules.
  • FIG. 10 only exemplarily shows the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection may be used.
  • the above components or modules may be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc .; the implementation of the present invention does not limit this.
  • the network device can schedule different resources for different target terminal devices, so that the sending terminal device knows the The target terminal device corresponding to the side link authorization and adopting appropriate resources for side link transmission can improve channel utilization or transmission reliability and meet the service quality requirements of the V2X service.
  • the network device and the sending terminal device can also agree on the corresponding relationship between the resources indicated by the side link authorization and the target terminal device, and the target ID can no longer be carried in the MAC PDU subheader of the side link data Or, the length of the target ID can be reduced, the overhead of the MAC PDU can be reduced, and the processing of the MAC PDU by the terminal device at the receiving end can be simplified.
  • an embodiment of the present invention also provides a communication system.
  • the communication system 100 may include:
  • the network device 101 which sends control information including the side link authorization to the first terminal device 102, wherein the control information further indicates at least one target information targeted by the side link authorization;
  • the first terminal device 102 which determines at least one target and / or logical channel based on the target information; and transmits side link data of the at least one target and / or logical channel according to the side link authorization; and
  • the second terminal device 103 receives the side link data sent by the first terminal device 102.
  • An embodiment of the present invention further provides a network device, which may be, for example, a base station, but the present invention is not limited to this, and may also be other network devices.
  • a network device which may be, for example, a base station, but the present invention is not limited to this, and may also be other network devices.
  • FIG. 11 is a schematic diagram of a network device according to an embodiment of the present invention.
  • the network device 1100 may include: a processor 1110 (for example, a central processing unit CPU) and a memory 1120; the memory 1120 is coupled to the processor 1110.
  • the memory 1120 can store various data; in addition, an information processing program 1130 is stored, and the program 1130 is executed under the control of the processor 1110.
  • the processor 1110 may be configured to execute a program to implement the method for configuring side link data as described in Embodiment 2.
  • the processor 1110 may be configured to perform the following control: sending control information including a side link authorization to the terminal device, where the control information further indicates at least one target information targeted by the side link authorization.
  • the network device 1100 may further include: a transceiver 1140 and an antenna 1150, etc .; wherein, the functions of the above components are similar to those in the prior art, and will not be repeated here. It is worth noting that the network device 1100 does not necessarily include all the components shown in FIG. 11; in addition, the network device 1100 may also include components not shown in FIG. 11, and reference may be made to the prior art.
  • An embodiment of the present invention further provides a terminal device, but the present invention is not limited to this, and may also be other devices.
  • the terminal device 1200 may include a processor 1210 and a memory 1220; the memory 1220 stores data and programs, and is coupled to the processor 1210. It is worth noting that the figure is exemplary; other types of structures can also be used to supplement or replace the structure to achieve telecommunications functions or other functions.
  • the processor 1210 may be configured to execute a program to implement the method for transmitting side link data as described in Embodiment 1.
  • the processor 1210 may be configured to perform the following control: receiving control information sent by a network device and including side link authorization, where the control information further indicates at least one target information targeted by the side link authorization; The target information determines at least one target and / or logical channel; and the side link data of the at least one target and / or logical channel is sent according to the side link authorization.
  • the terminal device 1200 may further include: a communication module 1230, an input unit 1240, a display 1250, and a power supply 1260. Among them, the functions of the above components are similar to those in the prior art, and will not be repeated here. It is worth noting that the terminal device 1200 does not necessarily include all the components shown in FIG. 12, and the above components are not necessary; in addition, the terminal device 1200 may also include components not shown in FIG. Have technology.
  • An embodiment of the present invention further provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to execute the method for transmitting side link data described in Embodiment 1.
  • An embodiment of the present invention further provides a storage medium storing a computer program, wherein the computer program causes the terminal device to execute the method for transmitting side link data described in Embodiment 1.
  • An embodiment of the present invention also provides a computer program, wherein when the program is executed in a network device, the program causes the network device to execute the method for configuring side link data described in Embodiment 2.
  • An embodiment of the present invention further provides a storage medium storing a computer program, wherein the computer program causes the network device to execute the method for configuring side link data described in Embodiment 2.
  • the above device and method of the present invention may be implemented by hardware, or may be implemented by hardware in combination with software.
  • the present invention relates to such a computer-readable program which, when executed by a logic component, enables the logic component to implement the above-described device or component, or enables the logic component to implement the various methods described above Or steps.
  • the invention also relates to storage media for storing the above programs, such as hard disks, magnetic disks, optical disks, DVDs, flash memories, and so on.
  • the method / device described in conjunction with the embodiments of the present invention may be directly embodied as hardware, a software module executed by a processor, or a combination of both.
  • one or more of the functional block diagrams and / or one or more combinations of the functional block diagrams shown in the figures may correspond to each software module of the computer program flow or each hardware module.
  • These software modules can respectively correspond to the steps shown in the figure.
  • These hardware modules can be realized by solidifying these software modules using a field programmable gate array (FPGA), for example.
  • FPGA field programmable gate array
  • the software module may be located in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.
  • a storage medium may be coupled to the processor, so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium may be an integral part of the processor.
  • the processor and the storage medium may be located in the ASIC.
  • the software module can be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal.
  • the software module may be stored in the MEGA-SIM card or a larger-capacity flash memory device.
  • the functional blocks described in the drawings and / or one or more combinations of the functional blocks it may be implemented as a general-purpose processor, digital signal processor (DSP) for performing the functions described in the present invention ), Application specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, or any suitable combination thereof.
  • DSP digital signal processor
  • ASIC Application specific integrated circuit
  • FPGA field programmable gate array
  • One or more of the functional blocks described in the drawings and / or one or more combinations of the functional blocks can also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, multiple microprocessing Processor, one or more microprocessors in communication with the DSP, or any other such configuration.
  • Appendix 1 A method for transmitting side link data, including:
  • the terminal device receives the control information sent by the network device and includes the side link authorization (SL grant), where the control information further indicates at least one target information targeted by the side link authorization;
  • SL grant side link authorization
  • Appendix 2 The method according to Appendix 1, wherein the target information includes at least one of the following: target terminal device identification, target terminal device group identification, link identification or connection identification, hybrid automatic retransmission request (HARQ ) Entity identification, hybrid automatic repeat request (HARQ) process identification, source terminal device identification and target terminal device identification, source terminal device identification and target terminal device group identification, identification calculated based on the target terminal device identification, based on the target terminal device group
  • the logo calculated by the logo is calculated according to the source terminal device ID and the target terminal device ID, and the logo calculated based on the source terminal device ID and the target terminal device group ID.
  • Appendix 3 The method according to Appendix 2, wherein the target terminal device identification includes one of the following: the target identification of the target terminal device provided by the V2X application layer, the target address or identification of the target terminal device configured by the core network 3. The target address or identification of the target terminal device configured by the network device;
  • the target terminal device identification is a part of the provided target identification or the configured target address or identification.
  • Appendix 4 The method according to Appendix 2, wherein the target terminal device group identifier includes one of the following: the target group device identifier of the target terminal device group provided by the V2X application layer, the target terminal device group configuration of the core network configuration Target group address or ID, target group address or ID of the target terminal device group configured by the network device;
  • the target terminal device group identifier is part of the provided target group identifier or the configured target group address or identifier.
  • Appendix 5 The method according to Appendix 2, wherein the link identifier or connection identifier includes a side chain of the sending terminal device for different target terminal devices and / or for different target terminal device groups and / or for broadcasting Link identification or connection identification of the road.
  • Appendix 6 The method according to Appendix 2, wherein the hybrid automatic repeat request (HARQ) entity identifier includes a HARQ entity identifier in the terminal device at the sending end, and the hybrid automatic repeat request (HARQ) process identifier Including the HARQ process identifier in the terminal device at the sending end.
  • HARQ hybrid automatic repeat request
  • Appendix 7 The method according to Appendix 2, wherein the source terminal device identification and the target terminal device (group) identification include at least one of the following: the source identification and target (group) identification provided by the V2X application layer, and the core The address or identification of the source terminal device configured on the network and the address or identification of the target terminal device (group), the address or identification of the source terminal device configured on the network device and the address or identification of the target terminal device (group);
  • the source terminal device identification and the target terminal device (group) identification include a part of the multiple bits corresponding to the provided source identification and target (group) identification or the configured address or identification.
  • Appendix 8 The method according to Appendix 2, wherein the identification calculated based on the target terminal device (group) identification includes: according to the C-RNTI or target identification of the target terminal device (group), through a specific function (e.g. hash function) the calculated identifier;
  • a specific function e.g. hash function
  • the identification calculated based on the source terminal device identification and the target terminal device (group) identification includes: according to the source terminal device's SL-RNTI or C-RNTI or the source identification and the target terminal device (group) C-RNTI or target identification,
  • the identifier calculated by a specific function for example, a hash function.
  • Appendix 9 The method according to any one of Appendixes 1 to 8, wherein the target information is included in the control information.
  • Appendix 10 The method according to any one of Appendixes 1 to 8, wherein the target information is indicated by the resource where the control information is located.
  • Appendix 11 The method according to Appendix 10, wherein the target information corresponds to the time start position and / or frequency start position of the search space where the control information is located; and / or
  • the target information corresponds to the time start position and / or frequency start position of the control resource set (CORESET) where the control information is located.
  • CORESET control resource set
  • Appendix 12 The method according to any one of Appendixes 1 to 8, wherein the target information is indicated by scrambling a cyclic redundancy check (CRC) of the control information using the target information.
  • CRC cyclic redundancy check
  • Appendix 13 The method according to any one of Appendixes 1 to 12, wherein the target information is layer 2 information or information of a layer (higher layer) higher than layer 2.
  • Appendix 14 The method according to any one of Appendixes 1 to 12, wherein the target information is layer 1 information; the method further includes:
  • the layer 1 information is mapped to at least one layer 2 information or information of a layer higher than layer 2 (high layer information).
  • Appendix 15 The method according to Appendix 14, wherein the method further comprises:
  • Appendix 16 The method according to any one of Appendixes 1 to 15, wherein the target information is a link identifier or a connection identifier;
  • the terminal device selects a link or target address and a logical channel related to the link identifier or connection identifier indicated by the control information; or, the terminal device selects the link indicated by the control information Logical channels related to link identification or connection identification.
  • Appendix 17 The method according to any one of Appendixes 1 to 15, wherein the target information is a hybrid automatic repeat request (HARQ) entity identifier and / or a hybrid automatic repeat request (HARQ) process identifier;
  • HARQ hybrid automatic repeat request
  • HARQ hybrid automatic repeat request
  • the terminal device sends, according to the HARQ entity identifier and / or process identifier, a HARQ entity whose identifier is the same as the HARQ entity identifier and / or process identifier in the resource indicated by the side link authorization (for example, the same ID)
  • the initial transmission or retransmission of the HARQ process is not limited to the HARQ entity identifier and / or process identifier.
  • Appendix 18 The method according to any one of Appendixes 1 to 17, wherein the determining at least one target and / or logical channel according to the target information includes:
  • Appendix 19 The method according to any one of Appendixes 1 to 17, wherein the determining at least one target and / or logical channel according to the target information includes:
  • At least one target whose identifier is consistent with the target information (for example, the same ID) is selected.
  • Appendix 20 The method according to any one of Appendixes 1 to 17, wherein the determining at least one target and / or logical channel according to the target information includes:
  • Appendix 21 The method according to any one of Appendixes 1 to 20, wherein at least one logical channel is selected from logical channels with data to be transmitted, and the method further comprises:
  • the resources of the side link grant indication are allocated to the selected at least one logical channel in descending order of logical channel priority.
  • Appendix 22 The method according to any one of Appendixes 1 to 21, wherein the side link grant is also associated (or corresponding) with at least one of the following: subcarrier spacing, physical side link shared channel (PSSCH) Transmission length, carrier information.
  • PSSCH physical side link shared channel
  • Appendix 23 The method according to any one of Appendixes 18 to 22, wherein the subcarrier interval where the logical channel is configured includes the subcarrier interval associated with the side link authorization; and / or
  • the configured PSSCH transmission length of the logical channel is greater than or equal to the PSSCH transmission length associated with the side link authorization; and / or
  • the allowed carrier on which the logical channel is configured includes carrier information associated with the side link authorization.
  • Appendix 24 The method according to any one of Appendixes 1 to 23, wherein the method further comprises:
  • Appendix 25 The method according to Appendix 24, wherein the scheduling request corresponds to at least one side link logical channel.
  • Appendix 26 The method according to Appendix 25, wherein the correspondence between the configuration of the scheduling request and the at least one side link logical channel is pre-configured by the network device, or the correspondence Pre-defined.
  • Appendix 27 The method according to any one of Appendixes 24 to 26, wherein the side link cache status report includes at least a target identifier.
  • Appendix 28 The method according to Appendix 27, wherein the target identification includes at least one of the following: a target address to which side link data is to be sent, a link identification, a connection identification, a HARQ entity identification, a HARQ process identification, An ID calculated based on the target terminal device ID, an ID calculated based on the target terminal device group ID, an ID calculated based on the source terminal device ID and the target terminal device ID, and an ID calculated based on the source terminal device ID and target terminal device group ID.
  • Appendix 29 The method according to Appendix 27 or 28, wherein the side link buffer status report further includes a logical channel group identifier and / or buffer size.
  • Appendix 30 A method for requesting side link data, including:
  • the terminal device When the terminal device needs to send the side link data, it sends a scheduling request to the network device;
  • the scheduling request corresponds to at least one side link logical channel.
  • Appendix 31 The method according to Appendix 30, wherein the correspondence between the configuration of the scheduling request and the at least one side link logical channel is pre-configured by the network device, or the correspondence Pre-defined.
  • Appendix 32 A method for requesting side link data, including:
  • the terminal device receives the control information including the uplink authorization sent by the network device.
  • the edge link buffer status report includes at least a target identifier.
  • Appendix 33 The method according to Appendix 32, wherein the target identification includes at least one of the following: a target address to send side link data, a link identification, a connection identification, a HARQ entity identification, a HARQ process identification, An ID calculated based on the target terminal device ID, an ID calculated based on the target terminal device group ID, an ID calculated based on the source terminal device ID and the target terminal device ID, and an ID calculated based on the source terminal device ID and the target terminal device group ID.
  • Appendix 34 The method according to Appendix 32 or 33, wherein the side link buffer status report further includes a logical channel group identifier and / or buffer size.
  • Appendix 35 A method for configuring side link data, including:
  • the network device sends control information including SL to the terminal device, where the control information also indicates at least one target information targeted by the SL.
  • Appendix 36 The method according to Appendix 35, wherein the method further comprises:
  • the network device receives the scheduling request sent by the terminal device
  • Appendix 37 The method according to Appendix 35 or 36, wherein the target information includes at least one of the following: target terminal device identification, target terminal device group identification, link identification or connection identification, hybrid automatic retransmission request (HARQ) entity identification, hybrid automatic repeat request (HARQ) process identification, source terminal device identification and target terminal device identification, source terminal device identification and target terminal device group identification, identification calculated based on the target terminal device identification, based on the target terminal
  • the identifier calculated by the device group identifier is the identifier calculated based on the source terminal device identifier and the target terminal device identifier, and the identifier calculated based on the source terminal device identifier and the target terminal device group identifier.
  • Appendix 38 The method according to any one of Appendixes 35 to 37, wherein the target information is included in the control information.
  • Appendix 39 The method according to any one of Appendixes 35 to 37, wherein the target information is indicated by a resource where the control information is located.
  • Appendix 40 The method according to Appendix 39, wherein the target information corresponds to the time start position and / or frequency start position of the search space where the control information is located; and / or
  • the target information corresponds to the time start position and / or frequency start position of the control resource set where the control information is located.
  • Appendix 41 The method according to any one of Appendixes 35 to 37, wherein the target information is indicated by scrambling a cyclic redundancy check (CRC) of the control information using the target information.
  • CRC cyclic redundancy check
  • Appendix 42 The method according to any one of Appendixes 35 to 41, wherein the target information is layer 2 information or information of a layer higher than layer 2.
  • Appendix 43 The method according to any one of Appendixes 35 to 41, wherein the target information is layer 1 information; the method further includes:
  • mapping relationship information between the layer 1 information of the target information and the layer 2 information or the information of the layer higher than layer 2 is sent to the terminal device.
  • Appendix 44 A terminal device, including a memory and a processor, the memory stores a computer program, the processor is configured to execute the computer program to implement the edge according to any one of Appendix 1 to 29 A method of transmitting link data or a method of requesting side link data as described in any of Appendixes 30 to 34.
  • Appendix 45 A network device, including a memory and a processor, the memory stores a computer program, the processor is configured to execute the computer program to implement the edge according to any one of Appendix 35 to 43 Link data configuration method.

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Abstract

一种边链路数据的发送和配置方法以及装置。所述方法包括：终端设备接收网络设备发送的包括边链路授权的控制信息，其中所述控制信息还指示所述边链路授权所针对的至少一个目标信息；根据所述目标信息确定至少一个目标和/或逻辑信道；以及根据所述边链路授权发送所述至少一个目标和/或逻辑信道的边链路数据。由此，能够让网络设备针对不同目标终端设备调度不同的资源，能够提高信道利用率或传输可靠性。

Description

边链路数据的发送和配置方法以及装置 技术领域
本发明实施例涉及通信技术领域，特别涉及一种边链路数据的发送和配置方法以及装置。
背景技术
长期演进(LTE，Long Term Evolution)的车联网(V2X，Vehicle to Everything)是一种车辆通信技术，能够实现车辆与车辆(V2V)、车辆与路侧设备(V2I)以及车辆与行人(V2P)之间的信息交互。
V2X业务可以通过PC5接口和/或Uu接口提供。对通过PC5接口传输的V2X业务，由V2X边链路(SL，sidelink)通信提供，这是一种终端设备能直接通过PC5接口彼此通信的通信模式。LTE中在终端设备被E-UTRAN服务时和终端设备在E-UTRA覆盖之外时，都支持这个通信模式。
在LTE V2X中，对边链路通信主要考虑采用广播(broadcast)方式发送边链路数据。对NR V2X，为了支持更多先进V2X应用场景和业务，可以采用单播(unicast)方式、组播(groupcast)方式和广播(broadcast)方式发送边链路数据。
应该注意，上面对技术背景的介绍只是为了方便对本发明的技术方案进行清楚、完整的说明，并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本发明的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。
发明内容
对于NR V2X，在3GPP物理层讨论中同意，物理层需要知道特定的数据以单播、组播还是广播的方式在边链路上被发送。而且对于单播或组播，物理层在边链路上的控制信息中传递层1(layer 1)目标(或称为目的)标识(destination ID)和另一个层1ID(可能是源ID)，而且对于单播或组播，物理层支持边链路混合自动重传请求(HARQ，Hybrid Automatic Repeat reQuest)反馈和HARQ合并等操作。在RAN2中同意，对组播的针对一个特定组的目标标识(可称为目标终端设备组标识)和对单播的针对目标终端设备的目标标识(可称为目标终端设备标识)需要分别在层2中可见， 源终端设备ID也应当对层2可见。
发明人发现：例如对于网络设备(例如基站)调度的方式(mode-1)，目前LTE中网络设备发送给发送端终端设备的边链路授权(SL grant)可被发送端终端设备用来发送到任何其他终端设备的边链路数据，发送端终端设备的介质访问控制(MAC，Media Access Control)层根据有数据要发送的逻辑信道的优先级来选择边链路发送的目标地址，并使用SL grant指示的边链路资源发送该目标地址对应的逻辑信道数据。
但是，终端设备可能同时有针对多于一个目标终端设备的单播业务，或同时有针对多于一个目标终端设备组的组播业务，或同时有单播和组播业务等。由于对Sidelink上的单播或组播业务支持HARQ操作，因此发送端终端设备需要知道网络设备发送的SL grant是用于发送针对某个目标终端设备的HARQ初传数据还是用于发送针对某个目标终端设备的HARQ重传数据。现有技术无法实现让网络设备向发送端终端设备指示目标终端设备的信息，因此难以让发送端终端设备针对目标终端设备的反馈或状态上报来采用合适的资源进行边链路传输，从而可能降低信道利用率或传输可靠性，无法达到V2X业务的服务质量(QoS，Quality of Service)要求。
针对上述问题，本发明实施例提供一种边链路数据的发送和配置方法以及装置。
根据本发明实施例的第一个方面，提供一种边链路数据的发送方法，包括：
终端设备接收网络设备发送的包括边链路授权(SL grant)的控制信息，其中所述控制信息还指示所述边链路授权所针对的至少一个目标信息；
根据所述目标信息确定至少一个目标和/或逻辑信道；以及
根据所述边链路授权发送所述至少一个目标和/或逻辑信道的边链路数据。
根据本发明实施例的第二个方面，提供一种边链路数据的发送装置，包括：
接收单元，其接收网络设备发送的包括边链路授权的控制信息，其中所述控制信息还指示所述边链路授权所针对至少一个的目标信息；
目标确定单元，其根据所述目标信息确定至少一个目标和/或逻辑信道；以及
发送单元，其根据所述边链路授权发送所述至少一个目标和/或逻辑信道的边链路数据。
根据本发明实施例的第三个方面，提供一种边链路数据的配置方法，包括：
网络设备向终端设备发送包括边链路授权(SL grant)的控制信息，其中所述控制信息还指示所述边链路授权所针对的至少一个目标信息。
根据本发明实施例的第四个方面，提供一种边链路数据的配置装置，包括：
发送单元，其向终端设备发送包括边链路授权的控制信息，其中所述控制信息还指示所述边链路授权所针对的至少一个目标信息。
根据本发明实施例的第五个方面，提供一种通信***，包括：
网络设备，其向第一终端设备发送包括边链路授权的控制信息，其中所述控制信息还指示所述边链路授权所针对的至少一个目标信息；
第一终端设备，其根据所述目标信息确定至少一个目标和/或逻辑信道；以及根据所述边链路授权发送所述至少一个目标和/或逻辑信道的边链路数据；以及
第二终端设备，其接收所述第一终端设备发送的所述边链路数据。
本发明实施例的有益效果在于：通过包括边链路授权的控制信息指示所述边链路授权所针对的目标信息，能够让网络设备调度针对不同目标终端设备的HARQ初传或重传的资源，让发送端终端设备知晓该边链路授权所对应的目标终端设备，并采用合适的资源进行边链路发送，从而能够提高信道利用率或传输可靠性，满足V2X业务的服务质量要求。
参照后文的说明和附图，详细公开了本发明的特定实施方式，指明了本发明的原理可以被采用的方式。应该理解，本发明的实施方式在范围上并不因而受到限制。在所附权利要求的精神和条款的范围内，本发明的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和/或示出的特征可以以相同或类似的方式在一个或更多个其它实施方式中使用，与其它实施方式中的特征相组合，或替代其它实施方式中的特征。
应该强调，术语“包括/包含”在本文使用时指特征、整件、步骤或组件的存在，但并不排除一个或更多个其它特征、整件、步骤或组件的存在或附加。
附图说明
在本发明实施例的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。此外，在附图中，类似的标号表示几个附图中对应的部件，并可用于指示多于一种实施方式中使用的对应部件。
图1是本发明实施例的通信***的示意图；
图2是本发明实施例的边链路数据的发送方法的示意图；
图3是本发明实施例的场景示例图；
图4是本发明实施例的确定至少一个目标和/或逻辑信道过程的示例图；
图5是本发明实施例的确定至少一个目标和/或逻辑信道过程的另一示例图；
图6是本发明实施例的确定至少一个目标和/或逻辑信道过程的另一示例图；
图7是本发明实施例的边链路数据的配置、发送和接收的示意图；
图8是本发明实施例的边链路数据的配置方法的示意图；
图9是本发明实施例的边链路数据的发送装置的示意图；
图10是本发明实施例的边链路数据的配置装置的示意图；
图11是本发明实施例的网络设备的示意图；
图12是本发明实施例的终端设备的示意图。
具体实施方式
参照附图，通过下面的说明书，本发明的前述以及其它特征将变得明显。在说明书和附图中，具体公开了本发明的特定实施方式，其表明了其中可以采用本发明的原则的部分实施方式，应了解的是，本发明不限于所描述的实施方式，相反，本发明包括落入所附权利要求的范围内的全部修改、变型以及等同物。
在本发明实施例中，术语“第一”、“第二”等用于对不同元素从称谓上进行区分，但并不表示这些元素的空间排列或时间顺序等，这些元素不应被这些术语所限制。术语“和/或”包括相关联列出的术语的一种或多个中的任何一个和所有组合。术语“包含”、“包括”、“具有”等是指所陈述的特征、元素、元件或组件的存在，但并不排除存在或添加一个或多个其他特征、元素、元件或组件。
在本发明实施例中，单数形式“一”、“该”等包括复数形式，应广义地理解为“一种”或“一类”而并不是限定为“一个”的含义；此外术语“所述”应理解为既包括单数形式也包括复数形式，除非上下文另外明确指出。此外术语“根据”应理解为“至少部分根据……”，术语“基于”应理解为“至少部分基于……”，除非上下文另外明确指出。
在本发明实施例中，术语“通信网络”或“无线通信网络”可以指符合如下任意通信标准的网络，例如长期演进(LTE，Long Term Evolution)、增强的长期演进(LTE-A，LTE-Advanced)、宽带码分多址接入(WCDMA，Wideband Code Division Multiple  Access)、高速报文接入(HSPA，High-Speed Packet Access)等等。
并且，通信***中设备之间的通信可以根据任意阶段的通信协议进行，例如可以包括但不限于如下通信协议：1G(generation)、2G、2.5G、2.75G、3G、4G、4.5G以及5G、新无线(NR，New Radio)等等，和/或其他目前已知或未来将被开发的通信协议。
在本发明实施例中，术语“网络设备”例如是指通信***中将终端设备接入通信网络并为该终端设备提供服务的设备。网络设备可以包括但不限于如下设备：基站(BS，Base Station)、接入点(AP、Access Point)、发送接收点(TRP，Transmission Reception Point)、广播发射机、移动管理实体(MME、Mobile Management Entity)、网关、服务器、无线网络控制器(RNC，Radio Network Controller)、基站控制器(BSC，Base Station Controller)等等。
其中，基站可以包括但不限于：节点B(NodeB或NB)、演进节点B(eNodeB或eNB)以及5G基站(gNB)，等等，此外还可包括远端无线头(RRH，Remote Radio Head)、远端无线单元(RRU，Remote Radio Unit)、中继(relay)或者低功率节点(例如femeto、pico等等)。并且术语“基站”可以包括它们的一些或所有功能，每个基站可以对特定的地理区域提供通信覆盖。术语“小区”可以指的是基站和/或其覆盖区域，这取决于使用该术语的上下文。
在本发明实施例中，术语“用户设备”(UE，User Equipment)或者“终端设备”(TE，Terminal Equipment或Terminal Device)例如是指通过网络设备接入通信网络并接收网络服务的设备。终端设备可以是固定的或移动的，并且也可以称为移动台(MS，Mobile Station)、终端、用户台(SS，Subscriber Station)、接入终端(AT，Access Terminal)、站，等等。
其中，终端设备可以包括但不限于如下设备：蜂窝电话(Cellular Phone)、车载通信模块、个人数字助理(PDA，Personal Digital Assistant)、无线调制解调器、无线通信设备、手持设备、机器型通信设备、膝上型计算机、无绳电话、智能手机、智能手表、数字相机，等等。
再例如，在物联网(IoT，Internet of Things)等场景下，终端设备还可以是进行监控或测量的机器或装置，例如可以包括但不限于：机器类通信(MTC，Machine Type Communication)终端、车载通信终端、设备到设备(D2D，Device to Device)终端、 机器到机器(M2M，Machine to Machine)终端，等等。
此外，术语“网络侧”或“网络设备侧”是指网络的一侧，可以是某一基站，也可以包括如上的一个或多个网络设备。术语“用户侧”或“终端侧”或“终端设备侧”是指用户或终端的一侧，可以是某一UE，也可以包括如上的一个或多个终端设备。
以下通过示例对本发明实施例的场景进行说明，但本发明不限于此。
图1是本发明实施例的通信***的示意图，示意性说明了以终端设备和网络设备为例的情况，如图1所示，通信***100可以包括网络设备101和终端设备102、103。为简单起见，图1仅以两个终端设备和一个网络设备为例进行说明，但本发明实施例不限于此。
在本发明实施例中，网络设备101和终端设备102、103之间可以进行现有的业务或者未来可实施的业务传输。例如，这些业务可以包括但不限于：增强的移动宽带(eMBB，enhanced Mobile Broadband)、大规模机器类型通信(mMTC，massive Machine Type Communication)和高可靠低时延通信(URLLC，Ultra-Reliable and Low-Latency Communication)，等等。
值得注意的是，图1示出了两个终端设备102、103均处于网络设备101的覆盖范围内，但本发明不限于此。两个终端设备102、103可以均不在网络设备101的覆盖范围内，或者一个终端设备102在网络设备101的覆盖范围之内而另一个终端设备103在网络设备101的覆盖范围之外。
在本发明实施例中，两个终端设备102、103之间可以进行边链路传输。例如，两个终端设备102、103可以都在网络设备101的覆盖范围之内进行边链路传输以实现V2X通信，也可以都在网络设备101的覆盖范围之外进行边链路传输以实现V2X通信，还可以一个终端设备102在网络设备101的覆盖范围之内而另一个终端设备103在网络设备101的覆盖范围之外进行边链路传输以实现V2X通信。
本发明实施例将以边链路和V2X为例进行说明，但本发明不限于此。
实施例1
本发明实施例提供一种边链路数据的发送方法，从发送设备(也可称为第一设备)侧进行说明。其中该发送设备是终端设备，但本发明不限于此，例如也可以是路侧设备或者网络设备。
图2是本发明实施例的边链路数据的发送方法的一示意图，如图2所示，所述方法包括：
步骤201，终端设备接收网络设备发送的包括边链路授权的控制信息，其中所述控制信息还指示所述边链路授权所针对的至少一个目标信息；
步骤202，终端设备根据所述目标信息确定至少一个目标和/或逻辑信道；以及
步骤203，终端设备根据所述边链路授权发送所述至少一个目标和/或逻辑信道的边链路数据。
在一个实施例中，所述目标信息包括如下至少之一：目标终端设备标识，目标终端设备组标识，链路标识或连接标识，混合自动重传请求(HARQ)实体标识，混合自动重传请求(HARQ)进程标识，源终端设备标识和目标终端设备(组)标识，根据目标终端设备(组)标识计算的标识，根据源终端设备标识和目标终端设备(组)标识计算的标识。本发明不限于此，还可以是其他表示目标的信息。
例如，当目标信息包括目标终端设备标识时，该目标信息可以包括V2X应用层提供的目标终端设备的Destination ID、或核心网配置的目标终端设备的目标地址或标识、或基站配置的目标终端设备的目标地址或标识，例如无线网络临时标识(RNTI，Radio Network Temporary Identifier)，但不限于此；
或者，该目标终端设备标识是提供的Destination ID或配置的目标地址或标识的一部分，例如目标终端设备标识是提供的Destination ID或配置的目标地址或标识所对应的Y个比特中的最高或最低或其中的X个bit，X、Y是正整数。
再例如，当目标信息包括目标终端设备组标识时，该目标终端设备组标识可以是V2X应用层提供的目标终端设备组的Destination group ID、或核心网配置的目标终端设备组的目标组地址或标识、或基站配置的目标终端设备组的目标组地址或标识，例如组无线网络临时标识(group RNTI)，但不限于此；
或者，该目标终端设备组标识是提供的Destination ID或配置的目标组地址或标识的一部分；例如目标终端设备组标识是提供的Destination ID或配置的目标组地址或标识所对应的Y个比特中的最高或最低或其中的X个bit，X、Y是正整数。
再例如，当目标信息包括链路标识或连接标识时，该目标信息可以包括发送端终端设备针对目标终端设备和/或针对目标终端设备组和/或针对广播的边链路的链路标识或连接标识。为了使发送端终端设备确定控制信息中指示的链路标识或连接标识对 应到哪个或哪些目标终端设备的sidelink传输，发送端终端设备可以提前知道链路标识或连接标识与sidelink传输的对应关系。
该对应关系可以由V2X应用层提供、或者由核心网分配、或者由基站分配、或者是预配置的、或者是预定义的。当该对应关系由终端设备的V2X应用层提供时、或该对应关系是预配置的或是预定义的时，终端设备向基站发送该对应关系，例如通过SidelinkUEInformation消息或UEAssistantInformation消息等RRC消息。当该对应关系由核心网分配给终端设备时，核心网或终端设备向基站发送该对应关系。此外，终端设备可以在边链路缓存状态报告(SL BSR)中向基站发送逻辑信道组所属的链路标识或连接标识。
再例如，当目标信息包括混合自动重传请求(HARQ)实体标识和/或HARQ进程标识时，该目标信息可以包括发送端终端设备内的HARQ实体标识和/或HARQ进程标识。对于包括HARQ实体标识的情况，发送端终端设备可以提前知道HARQ实体与HARQ实体标识的对应关系，该对应关系由基站配置给终端设备，例如通过RRCreconfiguration消息。
再例如，当目标信息包括源终端设备标识和目标终端设备(组)标识时，该目标信息包括的源终端设备标识和目标终端设备(组)标识可以是V2X应用层提供的Source ID和Destination(group)ID、或核心网配置的源终端设备地址或标识和目标终端设备(组)的地址或标识、或基站配置的源终端设备地址或标识和目标终端设备(组)的地址或标识；
或者，目标信息包括提供的Source ID+Destination(group)ID或配置的源终端设备地址或标识+目标终端设备(组)的地址或标识所对应的Y个比特中的最高或最低或其中的X个bit，X、Y是正整数。
再例如，当目标信息包括根据目标终端设备(组)标识计算的标识时，可以根据目标终端设备的C-RNTI或destination ID，通过特定函数(例如hash函数)计算出该标识；和/或
当目标信息包括根据源终端设备标识和目标终端设备(组)标识计算的标识时，可以根据源终端设备的SL-RNTI或C-RNTI或Source ID和目标终端设备(组)的C-RNTI或destination ID，通过特定函数(例如hash函数)计算出该标识。
此外，发送端终端设备可以提前知道目标终端设备(组)标识与该计算的标识之 间的对应关系、或源终端设备标识和目标终端设备(组)标识与该计算的标识之间的对应关系。该对应关系可以由基站配置给终端设备(例如通过RRC reconfiguration消息)，或者由V2X应用层提供，或者由核心网配置给终端。
值得注意的是，以上附图2仅对本发明实施例进行了示意性说明，但本发明不限于此。例如可以适当地调整各个步骤之间的执行顺序，此外还可以增加其他的一些步骤或者减少其中的某些步骤。本领域的技术人员可以根据上述内容进行适当地变型，而不仅限于上述附图2的记载。
图3是本发明实施例的场景示例图，在采用基站调度的方式(mode-1)的情况下，对于边链路数据的发送进行示例性说明。如图3所示，基站(gNB或eNB)向发送设备(例如UE 1)发送下行控制信息(DCI，downlink control information)，例如如图3所示，包括DCI 1、DCI 2和DCI 3；每个DCI中包含边链路授权(SL grant)。UE 1采用接收到的SL grant指示的资源和/或参数在边链路上进行V2X或D2D数据的发送。
如图3所示，UE 1和UE 2之间采用单播方式进行边链路传输，例如基站决定该边链路传输对应的边链路授权包含在DCI 1中，则基站发送的DCI 1还指示该边链路授权所针对的目标信息(例如UE 2标识)。UE 1和组1之间采用组播方式进行边链路传输，例如基站决定该边链路传输对应的边链路授权包含在DCI 2中，则基站发送的DCI 2还指示该边链路授权所针对的目标信息(例如组1的组标识)。
在一个实施例中，所述目标信息可以被包含在所述控制信息中。例如，DCI中包含一个域来指示该目标信息；例如：destination ID域，它的大小可以是8bits、16bits、24bits等。
在另一个实施例中，所述目标信息可以由所述控制信息所在的资源指示。例如，DCI所在的物理资源与该目标信息存在映射关系，该映射关系是可配置的。例如：DCI所在的搜索空间(search space)的时间起始位置或频率起始位置与该目标信息存在映射关系，和/或，DCI所在的控制资源集合(CORESET)的时间起始位置或频率起始位置与该目标信息存在映射关系。
在另一个实施例中，可以通过使用所述目标信息对所述控制信息的循环冗余校验(CRC)进行加扰来指示所述目标信息。例如，DCI的CRC被该目标信息加扰，即该DCI可以寻址该目标信息(例如RNTI)。
在一个实施例中，如果物理层信令中不包含该目标信息，则可以表示该边链路授权采用广播方式发送边链路数据。
在本发明实施例中，终端设备接收到该边链路授权后，该终端设备的MAC实体在确定至少一个目标和/或逻辑信道的过程(例如边链路的逻辑信道优先级处理(LCP，Logical Channel Prioritization)过程)中，需要进行目标地址选择或逻辑信道选择；可以从有数据要传输的逻辑信道中选择至少一个逻辑信道(LCH)，并且按照逻辑信道优先级的降序分配所述边链路授权指示的资源给所选择的所述至少一个逻辑信道。
在一个实施例中，所述目标信息可以为层2信息或者高于层2的层的信息(即高层信息)。层1(L1)例如包括物理层，层2(L2)例如包括MAC层、无线链路控制(RLC，Radio Link Control)层等，高于层2的层(高层)可以包括无线资源控制(RRC，Radio Resource Control)层、V2X应用层(V2X application layer)、接入层之上的层等；关于各协议层的具体定义可以参考相关技术。
图4是本发明实施例的确定至少一个目标和/或逻辑信道的过程(例如LCP过程)的一示例图；其中边链路授权中包含层2或高层的目标ID或组ID。如图4所示，假设包括边链路授权的DCI 1指示组播目标ID 2，则发送端终端设备采用DCI 1中的边链路授权所指示的资源发送针对组播目标ID为2的数据。假设包括边链路授权的DCI2指示单播目标ID 1，则发送端终端设备采用DCI 2中的边链路授权所指示的资源发送针对单播目标ID为1的数据，以此类推。
在一个实施例中，可以选择与该边链路授权所指示的目标信息相关的目标地址及其逻辑信道。所述根据所述目标信息确定至少一个目标和/或逻辑信道，包括：选择标识与所述目标信息一致(例如ID相同)的至少一个目标；以及确定所选择的所述至少一个目标所对应的逻辑信道。
例如，对MAC规范的修改，以目标ID为例，关于选择目标地址可以如下：
Figure PCTCN2018113088-appb-000001
在另一个实施例中，可以选择与该边链路授权所指示的目标信息相关的逻辑信道。所述根据所述目标信息确定至少一个目标和/或逻辑信道，包括：选择对应的目 标标识与所述目标信息一致(例如ID相同)的至少一个逻辑信道。
例如，对MAC规范的修改，以目标ID为例，例如关于选择逻辑信道可以如下：
Figure PCTCN2018113088-appb-000002
在一个实施例中，所述目标信息为层1信息；终端设备可以将所述层1信息映射为至少一个层2信息或者高于层2的层的信息(高层信息)。终端设备可以接收所述网络设备发送的所述层1信息与所述层2信息或者所述高于层2的层的信息之间的映射关系信息；或者该映射关系也可以是预定义的。例如，该映射关系为：L1ID是L2destination ID或高层destination ID的高X bits或低X bits(X为正整数)等。
图5是本发明实施例的确定至少一个目标和/或逻辑信道的过程(例如LCP过程)的另一示例图；其中边链路授权中包含层1的目标ID或组ID。如图5所示，假设包括边链路授权的DCI 1指示组播目标ID 2，则发送端终端设备对其进行映射，并采用DCI 1中的边链路授权所指示的资源发送针对组播目标ID为2的数据。假设包括边链路授权的DCI 2指示单播目标ID 1，则发送端终端设备对其进行映射，并采用DCI2中的边链路授权所指示的资源发送针对单播目标ID为1的数据，以此类推。
图6是本发明实施例的确定至少一个目标和/或逻辑信道的过程(例如LCP过程)的另一示例图；其中边链路授权中包含层1的目标ID或组ID。如图6所示，DCI 2中包括的层1ID 1可以被映射到两个层2ID(单播目标ID1和组播目标ID2)。
例如，对MAC规范的修改，以目标ID为例，关于选择目标地址可以如下：
Figure PCTCN2018113088-appb-000003
例如，对MAC规范的修改，以目标ID为例，例如关于选择逻辑信道可以如下：
Figure PCTCN2018113088-appb-000004
在一个实施例中，所述目标信息可以是链路标识或连接标识；终端设备可以根据所述链路标识或连接标识选择至少一个目标和/或逻辑信道。例如，可以选择与该控制信息所指示的链路标识或连接标识相关(或者对应)的链路或目标地址、以及逻辑信道；再例如，选择标识与所述目标信息一致(例如ID相同)的至少一个目标，以及确定所选择的所述至少一个目标所对应的逻辑信道。或者，终端设备可以选择与该控制信息所指示的目标信息相关的逻辑信道。例如，选择对应的链路标识与所述目标信息一致(例如ID相同)的至少一个逻辑信道。
在一个实施例中，所述目标信息为混合自动重传请求(HARQ)实体标识；HARQ实体标识可以是HARQ entity ID。终端设备可以根据所述HARQ实体标识，在边链路授权所指示的资源中发送标识与所述HARQ实体标识一致(例如ID相同)的HARQ实体的HARQ进程的初传或重传数据。例如，如果控制信息指示HARQ重传，则MAC层重发该HARQ实体的该HARQ进程的上一次传输的MAC PDU，不用再进行逻辑信道的选择。
在一个实施例中，所述目标信息为混合自动重传请求(HARQ)进程标识；HARQ进程标识可以是HARQ process ID。终端设备可以根据所述HARQ进程标识，在边链路授权所指示的资源中发送标识与所述HARQ进程标识一致(例如ID相同)的HARQ进程的初传或重传数据。
在一个实施例中，所述目标信息为混合自动重传请求(HARQ)实体标识和进程标识；HARQ实体标识可以是HARQ entity ID，HARQ进程标识可以是HARQ processID。终端设备可以根据所述HARQ实体标识和所述HARQ进程标识，在边链路授权所指示的资源中发送标识与所述HARQ实体标识和所述HARQ进程标识一致(例如ID相同)的HARQ实体的HARQ进程的初传或重传数据。
在一个实施例中，所述目标信息为源终端设备标识和目标终端设备(组)标识。 或者，所述目标信息为根据目标终端设备(组)标识计算的标识、或根据源终端设备标识和目标终端设备(组)标识计算的标识；终端设备可以将所述计算的标识映射为至少一个目标终端设备(组)标识、或源终端设备标识和目标终端设备(组)标识。
在一个实施例中，可以选择与该控制信息所指示的目标信息相关的目标地址及其逻辑信道。所述根据所述目标信息确定至少一个目标和/或逻辑信道，包括：选择标识与所述目标信息一致(例如ID相同)的至少一个目标；以及确定所选择的所述至少一个目标所对应的逻辑信道。
在另一个实施例中，可以选择与该控制信息所指示的目标信息相关的逻辑信道。所述根据所述目标信息确定至少一个目标和/或逻辑信道，包括：选择对应的目标标识与所述目标信息一致(例如ID相同)的至少一个逻辑信道。
以上示意性说明了本发明实施例的控制信息和目标信息，但本发明不限于此。以下对网络设备(例如基站)、第一终端设备(边链路数据的发送端)、第二终端设备(边链路数据的接收端)的交互过程进行示意性说明。
图7是本发明实施例的边链路数据的配置、发送和接收的一示意图，如图7所示，该过程可以包括：
步骤701，提供V2X业务的信息；
例如，第一终端设备在RRC消息(例如SidelinkUEInformation或者UEAssistant Information)中可以向基站提供如下信息的至少之一：感兴趣的V2X业务的QoS特性、业务类型、目标地址和频率、链路标识或连接标识与sidelink传输的对应关系、目标终端设备标识与该计算的标识之间的对应关系、源终端设备标识和目标终端设备标识与该计算的标识之间的对应关系等。
步骤702，进行RRC配置；
例如，基站通过RRC消息(例如RRC Reconfiguration消息)配置边链路相关的信息，例如如下信息的至少之一：逻辑信道、逻辑信道组、QoS参数、无线承载、资源池、边链路目标终端设备组的目标地址或标识、链路标识或连接标识与sidelink传输的对应关系、HARQ实体与HARQ实体标识的对应关系、源终端设备地址或标识和目标终端设备(组)的地址或标识、目标终端设备(组)标识与该计算的标识之间的对应关系等。
如图7所示，该过程还可以包括：
步骤703，第一终端设备在需要发送边链路数据时，向网络设备发送调度请求；
例如，当发送端终端设备有V2X业务要被发送时，该终端设备可以发送调度请求(SR，Scheduling Request)给基站。为了让基站分配合适的sidelink资源，SR可以对应于至少一个(例如是特定的)sidelink逻辑信道。例如，SR配置与sidelink逻辑信道之间的对应关系由基站预先配置，或者是预先定义的。
步骤704，所述网络设备发送包括上行授权的控制信息；
例如，基站发送物理下行控制信道(PDCCH，Physical Downlink Control Channel)，其中携带包含UL grant的DCI。
步骤705，第一终端设备根据所述上行授权向所述网络设备发送边链路缓存状态报告以请求所述边链路授权。
例如，该终端设备在UL grant指示的上行资源上发送SL BSR(Buffer status report)。其中，该BSR携带有目标标识、LCG ID(逻辑信道组标识)、缓存大小(buffer size)等信息。该目标标识例如包括如下至少之一：数据要发送的目标地址、链路标识、连接标识、HARQ实体标识、HARQ进程标识、根据目标终端设备(组)标识计算的标识、根据源终端设备标识和目标终端设备(组)标识计算的标识。
步骤706，网络设备向第一终端设备发送包括边链路授权的控制信息，其中所述控制信息还指示所述边链路授权所针对的目标信息；
例如，基站收到终端设备(UE 1)发送的SL BSR后，知道该终端设备可能同时存在给另一终端设备(UE 2)的单播数据、给另一组(group 1)的组播数据和给邻近终端设备的广播数据。
基站向该终端设备(UE 1)发送PDCCH，其中携带包含SL grant的DCI。基站可以针对UE 1有数据要发送的目标标识(例如目标ID或链路ID等)各自发送一个SL grant，也可以对多于一个目标标识(例如目标ID或链路ID等)发送一个SL grant。
步骤707，第一终端设备根据所述目标信息确定至少一个目标和/或逻辑信道；
关于LCP过程和HARQ操作可以参考上述内容。该终端设备可以根据SL grant指示的资源和标识信息等，组织MAC PDU。
步骤708，第一终端设备根据所述边链路授权发送所述至少一个目标和/或逻辑信道的边链路数据。
例如，第一终端设备在该边链路授权所指示的资源上将该MAC PDU发送给第二 终端设备。
值得注意的是，以上附图7仅对本发明实施例进行了示意性说明，但本发明不限于此。例如可以适当地调整各个步骤之间的执行顺序，此外还可以增加其他的一些步骤或者减少其中的某些步骤。本领域的技术人员可以根据上述内容进行适当地变型，而不仅限于上述附图7的记载。
在一个实施例中，所述边链路授权还可以关联(或者对应)以下的至少一个：子载波间隔，物理边链路共享信道(PSSCH)传输长度，载波信息。
在一个实施例中，所述逻辑信道被配置的子载波间隔可以包括所述边链路授权关联的子载波间隔，和/或，所述逻辑信道被配置的PSSCH传输长度可以大于或等于所述边链路授权关联的PSSCH传输长度，和/或，所述逻辑信道被配置的允许的载波可以包括所述边链路授权关联的载波信息。
以上各个实施例或实施方式仅对本发明实施例进行了示例性说明，但本发明不限于此，还可以在以上各个实施例或实施方式的基础上进行适当的变型。例如，可以单独使用上述各个实施例或实施方式，也可以将以上各个实施例或实施方式中的一种或多种结合起来。
由上述实施例可知，通过包括边链路授权的控制信息指示所述边链路授权所针对的目标信息，能够让网络设备针对不同目标终端设备调度不同的资源，因此让发送端终端设备知晓该边链路授权所对应的目标终端设备，并采用合适的资源进行边链路发送，从而能够提高信道利用率或传输可靠性，满足V2X业务的服务质量要求。
此外，网络设备和发送端终端设备之间也可以对边链路授权所指示的资源与目标终端设备的对应关系达成一致，在边链路数据的MAC PDU子头中也可以不再携带目标ID，或者可以减少目标ID的长度，能够减少MAC PDU的开销并能够简化接收端终端设备对MAC PDU处理。
实施例2
本发明实施例提供一种边链路数据的配置方法，从网络设备侧进行说明，与实施例1相同的内容不再赘述。
图8是本发明实施例的边链路数据的配置方法的示意图，示出了网络设备侧的情况。如图8所示，该方法包括：
步骤804，网络设备向终端设备发送包括边链路授权(SL grant)的控制信息，其中所述控制信息还指示所述边链路授权所针对的至少一个目标信息。
如图8所示，该方法还可以包括：
步骤801，所述网络设备接收所述终端设备发送的调度请求；
步骤802，所述网络设备向所述终端设备发送包括上行授权的控制信息；以及
步骤803，所述网络设备接收所述终端设备发送的用于请求所述边链路授权的边链路缓存状态报告。
值得注意的是，以上附图8仅对本发明实施例进行了示意性说明，但本发明不限于此。例如可以适当地调整各个步骤之间的执行顺序，此外还可以增加其他的一些步骤或者减少其中的某些步骤。本领域的技术人员可以根据上述内容进行适当地变型，而不仅限于上述附图8的记载。
在一个实施例中，所述目标信息包括如下至少之一：目标终端设备标识，目标终端设备组标识，链路标识或连接标识，混合自动重传请求(HARQ)实体标识，混合自动重传请求(HARQ)进程标识，源终端设备标识和目标终端设备标识，源终端设备标识和目标终端设备组标识，根据目标终端设备标识计算的标识，根据目标终端设备组标识计算的标识，根据源终端设备标识和目标终端设备标识计算的标识，根据源终端设备标识和目标终端设备组标识计算的标识。关于目标信息的具体内容可以参考
实施例1。
在一个实施例中，所述目标信息被包含在所述控制信息中。
在一个实施例中，所述目标信息由所述控制信息所在的资源指示。例如，所述目标信息对应于所述控制信息所在搜索空间的时间起始位置和/或频率起始位置，和/或，所述目标信息对应于所述控制信息所在控制资源集合的时间起始位置和/或频率起始位置。
在一个实施例中，通过使用所述目标信息对所述控制信息的循环冗余校验(CRC)进行加扰来指示所述目标信息。
在一个实施例中，所述目标信息为层2信息或者高于层2的层的信息。
在一个实施例中，所述目标信息为层1信息；所述方法还包括：向所述终端设备发送所述目标信息的层1信息与层2信息或者高于层2的层的信息之间的映射关系信息。
以上各个实施方式或实施例仅对本发明实施例进行了示例性说明，但本发明不限于此，还可以在以上各个实施方式或实施例的基础上进行适当的变型。例如，可以单独使用上述各个实施方式或实施例，也可以将以上各个实施方式或实施例中的一种或多种结合起来。
由上述实施例可知，通过包括边链路授权的控制信息指示所述边链路授权所针对的目标信息，能够让网络设备针对不同目标终端设备调度不同的资源，因此让发送端终端设备知晓该边链路授权所对应的目标终端设备，并采用合适的资源进行边链路传输，从而能够提高信道利用率或传输可靠性，满足V2X业务的服务质量要求。
此外，网络设备和发送端终端设备之间也可以对边链路授权所指示的资源与目标终端设备的对应关系达成一致，在边链路数据的MAC PDU子头中也可以不再携带目标ID，或者可以减少目标ID的长度，能够减少MAC PDU的开销并能够简化接收端终端设备对MAC PDU处理。
实施例3
本发明实施例提供一种边链路数据的发送装置。该装置例如可以是终端设备，也可以是配置于终端设备的某个或某些部件或者组件。但本发明不限于此，例如可以是路侧设备或者网络设备，也可以是配置于路侧设备或者网络设备的某个或某些部件或者组件。本实施例3与实施例1相同的内容不再赘述。
图9是本发明实施例的边链路数据的发送装置的示意图，如图9所示，边链路数据的发送装置900包括：
接收单元901，其接收网络设备发送的包括边链路授权的控制信息，其中所述控制信息还指示所述边链路授权所针对的至少一个目标信息；
目标确定单元902，其根据所述目标信息确定至少一个目标和/或逻辑信道；以及
发送单元903，其根据所述边链路授权发送所述至少一个目标和/或逻辑信道的边链路数据。
在一个实施例中，所述目标信息包括如下至少之一：目标终端设备标识，目标终端设备组标识，链路标识或连接标识，混合自动重传请求实体标识，混合自动重传请求进程标识，源终端设备标识和目标终端设备标识，源终端设备标识和目标终端设备组标识，根据目标终端设备标识计算的标识，根据目标终端设备组标识计算的标识， 根据源终端设备标识和目标终端设备标识计算的标识，根据源终端设备标识和目标终端设备组标识计算的标识。关于目标信息的具体内容可以参考实施例1。
在一个实施例中，所述目标信息被包含在所述控制信息中。
在一个实施例中，所述目标信息由所述控制信息所在的资源指示。
在一个实施例中，所述目标信息对应于所述控制信息所在搜索空间的时间起始位置和/或频率起始位置，和/或，所述目标信息对应于所述控制信息所在控制资源集合的时间起始位置和/或频率起始位置。
在一个实施例中，通过使用所述目标信息对所述控制信息的循环冗余校验进行加扰来指示所述目标信息。
在一个实施例中，所述目标信息为层2信息或者高于层2的层的信息。
在一个实施例中，所述目标信息为层1信息；
如图9所示，边链路数据的发送装置900还可以包括：
映射单元904，其将所述层1信息映射为至少一个层2信息或者高于层2的层的信息。
在一个实施例中，所述接收单元901还用于：接收所述网络设备发送的所述层1信息与所述层2信息或者所述高于层2的层的信息之间的映射关系信息。
在一个实施例中，所述目标确定单元902用于：选择标识与所述目标信息一致的至少一个目标；以及确定所选择的所述至少一个目标所对应的逻辑信道。
在一个实施例中，所述目标确定单元902用于：选择对应的目标标识与所述目标信息一致的至少一个逻辑信道。
在一个实施例中，所述目标确定单元902从有数据要传输的逻辑信道中选择至少一个逻辑信道，并且按照逻辑信道优先级的降序分配所述边链路授权指示的资源给所选择的所述至少一个逻辑信道。
在一个实施例中，所述边链路授权还关联以下的至少一个：子载波间隔，物理边链路共享信道传输长度，载波信息。
在一个实施例中，所述逻辑信道被配置的子载波间隔包括所述边链路授权关联的子载波间隔；和/或
所述逻辑信道被配置的物理边链路共享信道传输长度大于或等于所述边链路授权关联的物理边链路共享信道传输长度；和/或
所述逻辑信道被配置的允许的载波包括所述边链路授权关联的载波信息。
在一个实施例中，所述发送单元903还用于在需要发送所述边链路数据时，向所述网络设备发送调度请求；所述接收单元901还用于接收所述网络设备发送的包括上行授权的控制信息；以及所述发送单元903还用于根据所述上行授权向所述网络设备发送边链路缓存状态报告以请求所述边链路授权。
在一个实施例中，所述边链路缓存状态报告包括目标标识。该目标标识例如包括如下至少之一：数据要发送的目标地址、链路标识、连接标识、HARQ实体标识、HARQ进程标识、根据目标终端设备(组)标识计算的标识、根据源终端设备标识和目标终端设备(组)标识计算的标识。
值得注意的是，以上仅对与本发明相关的各部件或模块进行了说明，但本发明不限于此。边链路数据的发送装置900还可以包括其他部件或者模块，关于这些部件或者模块的具体内容，可以参考相关技术。
此外，为了简单起见，图9中仅示例性示出了各个部件或模块之间的连接关系或信号走向，但是本领域技术人员应该清楚的是，可以采用总线连接等各种相关技术。上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现；本发明实施并不对此进行限制。
以上各个实施方式或实施例仅对本发明实施例进行了示例性说明，但本发明不限于此，还可以在以上各个实施方式或实施例的基础上进行适当的变型。例如，可以单独使用上述各个实施方式或实施例，也可以将以上各个实施方式或实施例中的一种或多种结合起来。
由上述实施例可知，通过包括边链路授权的控制信息指示所述边链路授权所针对的目标信息，能够让网络设备针对不同目标终端设备调度不同的资源，因此让发送端终端设备知晓该边链路授权所对应的目标终端设备，并采用合适的资源进行边链路传输，从而能够提高信道利用率或传输可靠性，满足V2X业务的服务质量要求。
此外，网络设备和发送端终端设备之间也可以对边链路授权所指示的资源与目标终端设备的对应关系达成一致，在边链路数据的MAC PDU子头中也可以不再携带目标ID，或者可以减少目标ID的长度，能够减少MAC PDU的开销并能够简化接收端终端设备对MAC PDU处理。
实施例4
本发明实施例提供一种边链路数据的配置装置。该装置例如可以是网络设备，也可以是配置于网络设备的某个或某些部件或者组件；但本发明不限于此，例如可以是路侧设备，也可以是配置于路侧设备的某个或某些部件或者组件。本实施例4与实施例2相同的内容不再赘述。
图10是本发明实施例的边链路数据的配置装置的示意图，如图10所示，边链路数据的配置装置1000包括：
发送单元1001，其向终端设备发送包括边链路授权的控制信息，其中所述控制信息还指示所述边链路授权所针对的至少一个目标信息。
如图10所示，边链路数据的配置装置1000还可以包括：
接收单元1002，其接收所述终端设备发送的调度请求；
所述发送单元1001还可以用于向所述终端设备发送包括上行授权的控制信息；以及所述接收单元1002还可以用于接收所述终端设备发送的用于请求所述边链路授权的边链路缓存状态报告。
在一个实施例中，所述目标信息包括如下至少之一：目标终端设备标识，目标终端设备组标识，链路标识或连接标识，混合自动重传请求实体标识，混合自动重传请求进程标识，源终端设备标识和目标终端设备标识，源终端设备标识和目标终端设备组标识，根据目标终端设备标识计算的标识，根据目标终端设备组标识计算的标识，根据源终端设备标识和目标终端设备标识计算的标识，根据源终端设备标识和目标终端设备组标识计算的标识。关于目标信息的具体内容可以参考实施例1。
值得注意的是，以上仅对与本发明相关的各部件或模块进行了说明，但本发明不限于此。边链路数据的配置装置1000还可以包括其他部件或者模块，关于这些部件或者模块的具体内容，可以参考相关技术。
此外，为了简单起见，图10中仅示例性示出各个部件或模块之间的连接关系或信号走向，但是本领域技术人员应该清楚的是，可以采用总线连接等各种相关技术。上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现；本发明实施并不对此进行限制。
以上各个实施方式或实施例仅对本发明实施例进行了示例性说明，但本发明不限于此，还可以在以上各个实施方式或实施例的基础上进行适当的变型。例如，可以单 独使用上述各个实施方式或实施例，也可以将以上各个实施方式或实施例中的一种或多种结合起来。
由上述实施例可知，通过包括边链路授权的控制信息指示所述边链路授权所针对的目标信息，能够让网络设备针对不同目标终端设备调度不同的资源，因此让发送端终端设备知晓该边链路授权所对应的目标终端设备，并采用合适的资源进行边链路传输，从而能够提高信道利用率或传输可靠性，满足V2X业务的服务质量要求。
此外，网络设备和发送端终端设备之间也可以对边链路授权所指示的资源与目标终端设备的对应关系达成一致，在边链路数据的MAC PDU子头中也可以不再携带目标ID，或者可以减少目标ID的长度，能够减少MAC PDU的开销并能够简化接收端终端设备对MAC PDU处理。
实施例5
本发明实施例还提供一种通信***，可以参考图1，与实施例1至4相同的内容不再赘述。在本实施例中，通信***100可以包括：
网络设备101，其向第一终端设备102发送包括边链路授权的控制信息，其中所述控制信息还指示所述边链路授权所针对的至少一个目标信息；
第一终端设备102，其根据所述目标信息确定至少一个目标和/或逻辑信道；以及根据所述边链路授权发送所述至少一个目标和/或逻辑信道的边链路数据；以及
第二终端设备103，其接收所述第一终端设备102发送的所述边链路数据。
本发明实施例还提供一种网络设备，例如可以是基站，但本发明不限于此，还可以是其他的网络设备。
图11是本发明实施例的网络设备的构成示意图。如图11所示，网络设备1100可以包括：处理器1110(例如中央处理器CPU)和存储器1120；存储器1120耦合到处理器1110。其中该存储器1120可存储各种数据；此外还存储信息处理的程序1130，并且在处理器1110的控制下执行该程序1130。
例如，处理器1110可以被配置为执行程序而实现如实施例2所述的边链路数据的配置方法。例如处理器1110可以被配置为进行如下的控制：向终端设备发送包括边链路授权的控制信息，其中所述控制信息还指示所述边链路授权所针对的至少一个目标信息。
此外，如图11所示，网络设备1100还可以包括：收发机1140和天线1150等；其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，网络设备1100也并不是必须要包括图11中所示的所有部件；此外，网络设备1100还可以包括图11中没有示出的部件，可以参考现有技术。
本发明实施例还提供一种终端设备，但本发明不限于此，还可以是其他的设备。
图12是本发明实施例的终端设备的示意图。如图12所示，该终端设备1200可以包括处理器1210和存储器1220；存储器1220存储有数据和程序，并耦合到处理器1210。值得注意的是，该图是示例性的；还可以使用其他类型的结构，来补充或代替该结构，以实现电信功能或其他功能。
例如，处理器1210可以被配置为执行程序而实现如实施例1所述的边链路数据的发送方法。例如处理器1210可以被配置为进行如下的控制：接收网络设备发送的包括边链路授权的控制信息，其中所述控制信息还指示所述边链路授权所针对的至少一个目标信息；根据所述目标信息确定至少一个目标和/或逻辑信道；以及根据所述边链路授权发送所述至少一个目标和/或逻辑信道的边链路数据。
如图12所示，该终端设备1200还可以包括：通信模块1230、输入单元1240、显示器1250、电源1260。其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，终端设备1200也并不是必须要包括图12中所示的所有部件，上述部件并不是必需的；此外，终端设备1200还可以包括图12中没有示出的部件，可以参考现有技术。
本发明实施例还提供一种计算机程序，其中当在终端设备中执行所述程序时，所述程序使得所述终端设备执行实施例1所述的边链路数据的发送方法。
本发明实施例还提供一种存储有计算机程序的存储介质，其中所述计算机程序使得终端设备执行实施例1所述的边链路数据的发送方法。
本发明实施例还提供一种计算机程序，其中当在网络设备中执行所述程序时，所述程序使得所述网络设备执行实施例2所述的边链路数据的配置方法。
本发明实施例还提供一种存储有计算机程序的存储介质，其中所述计算机程序使得网络设备执行实施例2所述的边链路数据的配置方法。
本发明以上的装置和方法可以由硬件实现，也可以由硬件结合软件实现。本发明涉及这样的计算机可读程序，当该程序被逻辑部件所执行时，能够使该逻辑部件实现 上文所述的装置或构成部件，或使该逻辑部件实现上文所述的各种方法或步骤。本发明还涉及用于存储以上程序的存储介质，如硬盘、磁盘、光盘、DVD、flash存储器等。
结合本发明实施例描述的方法/装置可直接体现为硬件、由处理器执行的软件模块或二者组合。例如，图中所示的功能框图中的一个或多个和/或功能框图的一个或多个组合，既可以对应于计算机程序流程的各个软件模块，亦可以对应于各个硬件模块。这些软件模块，可以分别对应于图中所示的各个步骤。这些硬件模块例如可利用现场可编程门阵列(FPGA)将这些软件模块固化而实现。
软件模块可以位于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、移动磁盘、CD-ROM或者本领域已知的任何其它形式的存储介质。可以将一种存储介质耦接至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息；或者该存储介质可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。该软件模块可以存储在移动终端的存储器中，也可以存储在可***移动终端的存储卡中。例如，若设备(如移动终端)采用的是较大容量的MEGA-SIM卡或者大容量的闪存装置，则该软件模块可存储在该MEGA-SIM卡或者大容量的闪存装置中。
针对附图中描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，可以实现为用于执行本发明所描述功能的通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件或者其任意适当组合。针对附图描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，还可以实现为计算设备的组合，例如，DSP和微处理器的组合、多个微处理器、与DSP通信结合的一个或多个微处理器或者任何其它这种配置。
以上结合具体的实施方式对本发明进行了描述，但本领域技术人员应该清楚，这些描述都是示例性的，并不是对本发明保护范围的限制。本领域技术人员可以根据本发明的精神和原理对本发明做出各种变型和修改，这些变型和修改也在本发明的范围内。
关于包括以上实施例的实施方式，还公开下述的附记：
附记1、一种边链路数据的发送方法，包括：
终端设备接收网络设备发送的包括边链路授权(SL grant)的控制信息，其中所 述控制信息还指示所述边链路授权所针对的至少一个目标信息；
根据所述目标信息确定至少一个目标和/或逻辑信道；以及
根据所述边链路授权发送所述至少一个目标和/或逻辑信道的边链路数据。
附记2、根据附记1所述的方法，其中，所述目标信息包括如下至少之一：目标终端设备标识，目标终端设备组标识，链路标识或连接标识，混合自动重传请求(HARQ)实体标识，混合自动重传请求(HARQ)进程标识，源终端设备标识和目标终端设备标识，源终端设备标识和目标终端设备组标识，根据目标终端设备标识计算的标识，根据目标终端设备组标识计算的标识，根据源终端设备标识和目标终端设备标识计算的标识，根据源终端设备标识和目标终端设备组标识计算的标识。
附记3、根据附记2所述的方法，其中，所述目标终端设备标识包括如下之一：V2X应用层提供的目标终端设备的目标标识、核心网配置的目标终端设备的目标地址或标识、网络设备配置的目标终端设备的目标地址或标识；
或者，所述目标终端设备标识是所述提供的目标标识或所述配置的目标地址或标识的一部分。
附记4、根据附记2所述的方法，其中，所述目标终端设备组标识包括如下之一：V2X应用层提供的目标终端设备组的目标组标识、核心网配置的目标终端设备组的目标组地址或标识、网络设备配置的目标终端设备组的目标组地址或标识；
或者，该目标终端设备组标识是所述提供的目标组标识或所述配置的目标组地址或标识的一部分。
附记5、根据附记2所述的方法，其中，所述链路标识或连接标识包括发送端终端设备针对不同目标终端设备和/或针对不同目标终端设备组和/或针对广播的边链路的链路标识或连接标识。
附记6、根据附记2所述的方法，其中，所述混合自动重传请求(HARQ)实体标识包括发送端终端设备内的HARQ实体标识，所述混合自动重传请求(HARQ)进程标识包括发送端终端设备内的HARQ进程标识。
附记7、根据附记2所述的方法，其中，所述源终端设备标识和目标终端设备(组)标识包括如下至少之一：V2X应用层提供的源标识和目标(组)标识、核心网配置的源终端设备地址或标识和目标终端设备(组)的地址或标识、网络设备配置的源终端设备地址或标识和目标终端设备(组)的地址或标识；
或者，所述源终端设备标识和目标终端设备(组)标识包括所述提供的源标识和目标(组)标识或所述配置的地址或标识所对应的多个比特中的一部分。
附记8、根据附记2所述的方法，其中，所述根据目标终端设备(组)标识计算的标识包括：根据目标终端设备(组)的C-RNTI或目标标识，通过特定函数(例如hash函数)计算出的标识；
所述根据源终端设备标识和目标终端设备(组)标识计算的标识包括：根据源终端设备的SL-RNTI或C-RNTI或源标识和目标终端设备(组)的C-RNTI或目标标识，通过特定函数(例如hash函数)计算出的标识。
附记9、根据附记1至8任一项所述的方法，其中，所述目标信息被包含在所述控制信息中。
附记10、根据附记1至8任一项所述的方法，其中，所述目标信息由所述控制信息所在的资源指示。
附记11、根据附记10所述的方法，其中，所述目标信息对应于所述控制信息所在搜索空间的时间起始位置和/或频率起始位置；和/或
所述目标信息对应于所述控制信息所在控制资源集合(CORESET)的时间起始位置和/或频率起始位置。
附记12、根据附记1至8任一项所述的方法，其中，通过使用所述目标信息对所述控制信息的循环冗余校验(CRC)进行加扰来指示所述目标信息。
附记13、根据附记1至12任一项所述的方法，其中，所述目标信息为层2信息或者高于层2的层(高层)的信息。
附记14、根据附记1至12任一项所述的方法，其中，所述目标信息为层1信息；所述方法还包括：
将所述层1信息映射为至少一个层2信息或者高于层2的层的信息(高层信息)。
附记15、根据附记14所述的方法，其中，所述方法还包括：
接收所述网络设备发送的所述层1信息与所述层2信息或者所述高于层2的层的信息之间的映射关系信息。
附记16、根据附记1至15任一项所述的方法，其中，所述目标信息是链路标识或连接标识；
所述终端设备选择与所述控制信息所指示的所述链路标识或连接标识相关的链 路或目标地址、以及逻辑信道；或者，所述终端设备选择与所述控制信息所指示的所述链路标识或连接标识相关的逻辑信道。
附记17、根据附记1至15任一项所述的方法，其中，所述目标信息是混合自动重传请求(HARQ)实体标识和/或混合自动重传请求(HARQ)进程标识；
所述终端设备根据所述HARQ实体标识和/或进程标识，在所述边链路授权所指示的资源中发送标识与所述HARQ实体标识和/或进程标识一致(例如ID相同)的HARQ实体的HARQ进程的初传或重传数据。
附记18、根据附记1至17任一项所述的方法，其中，所述根据所述目标信息确定至少一个目标和/或逻辑信道，包括：
选择标识与所述目标信息一致(例如ID相同)的至少一个目标；以及
确定所选择的所述至少一个目标所对应的逻辑信道。
附记19、根据附记1至17任一项所述的方法，其中，所述根据所述目标信息确定至少一个目标和/或逻辑信道，包括：
选择标识与所述目标信息一致(例如ID相同)的至少一个目标。
附记20、根据附记1至17任一项所述的方法，其中，所述根据所述目标信息确定至少一个目标和/或逻辑信道，包括：
选择对应的目标标识与所述目标信息一致(例如ID相同)的至少一个逻辑信道。
附记21、根据附记1至20任一项所述的方法，其中，从有数据要传输的逻辑信道中选择至少一个逻辑信道，并且所述方法还包括：
按照逻辑信道优先级的降序分配所述边链路授权指示的资源给所选择的所述至少一个逻辑信道。
附记22、根据附记1至21任一项所述的方法，其中，所述边链路授权还关联(或者对应)以下的至少一个：子载波间隔，物理边链路共享信道(PSSCH)传输长度，载波信息。
附记23、根据附记18至22任一项所述的方法，其中，所述逻辑信道被配置的子载波间隔包括所述边链路授权关联的子载波间隔；和/或
所述逻辑信道被配置的PSSCH传输长度大于或等于所述边链路授权关联的PSSCH传输长度；和/或
所述逻辑信道被配置的允许的载波包括所述边链路授权关联的载波信息。
附记24、根据附记1至23任一项所述的方法，其中，所述方法还包括：
所述终端设备在需要发送所述边链路数据时，向所述网络设备发送调度请求；
接收所述网络设备发送的包括上行授权的控制信息；以及
根据所述上行授权向所述网络设备发送边链路缓存状态报告以请求所述边链路授权。
附记25、根据附记24所述的方法，其中，所述调度请求对应于至少一个边链路逻辑信道。
附记26、根据附记25所述的方法，其中，所述调度请求的配置与所述至少一个边链路逻辑信道之间的对应关系由所述网络设备预先配置，或者所述对应关系被预先定义。
附记27、根据附记24至26任一项所述的方法，其中，所述边链路缓存状态报告至少包括目标标识。
附记28、根据附记27所述的方法，其中，所述目标标识包括如下至少之一：边链路数据要发送的目标地址、链路标识、连接标识、HARQ实体标识、HARQ进程标识、根据目标终端设备标识计算的标识、根据目标终端设备组标识计算的标识、根据源终端设备标识和目标终端设备标识计算的标识、根据源终端设备标识和目标终端设备组标识计算的标识。
附记29、根据附记27或28所述的方法，其中，所述边链路缓存状态报告还包括逻辑信道组标识和/或缓存大小。
附记30、一种边链路数据的请求方法，包括：
终端设备在需要发送边链路数据时，向网络设备发送调度请求；
其中，所述调度请求对应于至少一个边链路逻辑信道。
附记31、根据附记30所述的方法，其中，所述调度请求的配置与所述至少一个边链路逻辑信道之间的对应关系由所述网络设备预先配置，或者所述对应关系被预先定义。
附记32、一种边链路数据的请求方法，包括：
终端设备接收网络设备发送的包括上行授权的控制信息；以及
根据所述上行授权向所述网络设备发送边链路缓存状态报告以请求所述边链路授权；其中，所述边链路缓存状态报告至少包括目标标识。
附记33、根据附记32所述的方法，其中，所述目标标识包括如下至少之一：边链路数据要发送的目标地址、链路标识、连接标识、HARQ实体标识、HARQ进程标识、根据目标终端设备标识计算的标识、根据目标终端设备组标识计算的标识、根据源终端设备标识和目标终端设备标识计算的标识、根据源终端设备标识和目标终端设备组标识计算的标识。
附记34、根据附记32或33所述的方法，其中，所述边链路缓存状态报告还包括逻辑信道组标识和/或缓存大小。
附记35、一种边链路数据的配置方法，包括：
网络设备向终端设备发送包括边链路授权(SL grant)的控制信息，其中所述控制信息还指示所述边链路授权所针对的至少一个目标信息。
附记36、根据附记35所述的方法，其中，所述方法还包括：
所述网络设备接收所述终端设备发送的调度请求；
向所述终端设备发送包括上行授权的控制信息；以及
接收所述终端设备发送的用于请求所述边链路授权的边链路缓存状态报告。
附记37、根据附记35或36所述的方法，其中，所述目标信息包括如下至少之一：目标终端设备标识，目标终端设备组标识，链路标识或连接标识，混合自动重传请求(HARQ)实体标识，混合自动重传请求(HARQ)进程标识，源终端设备标识和目标终端设备标识，源终端设备标识和目标终端设备组标识，根据目标终端设备标识计算的标识，根据目标终端设备组标识计算的标识，根据源终端设备标识和目标终端设备标识计算的标识，根据源终端设备标识和目标终端设备组标识计算的标识。
附记38、根据附记35至37任一项所述的方法，其中，所述目标信息被包含在所述控制信息中。
附记39、根据附记35至37任一项所述的方法，其中，所述目标信息由所述控制信息所在的资源指示。
附记40、根据附记39所述的方法，其中，所述目标信息对应于所述控制信息所在搜索空间的时间起始位置和/或频率起始位置；和/或
所述目标信息对应于所述控制信息所在控制资源集合的时间起始位置和/或频率起始位置。
附记41、根据附记35至37任一项所述的方法，其中，通过使用所述目标信息 对所述控制信息的循环冗余校验(CRC)进行加扰来指示所述目标信息。
附记42、根据附记35至41任一项所述的方法，其中，所述目标信息为层2信息或者高于层2的层的信息。
附记43、根据附记35至41任一项所述的方法，其中，所述目标信息为层1信息；所述方法还包括：
向所述终端设备发送所述目标信息的层1信息与层2信息或者高于层2的层的信息之间的映射关系信息。
附记44、一种终端设备，包括存储器和处理器，所述存储器存储有计算机程序，所述处理器被配置为执行所述计算机程序而实现如附记1至29任一项所述的边链路数据的发送方法或者如附记30至34任一项所述的边链路数据的请求方法。
附记45、一种网络设备，包括存储器和处理器，所述存储器存储有计算机程序，所述处理器被配置为执行所述计算机程序而实现如附记35至43任一项所述的边链路数据的配置方法。

Claims (20)

  1. 一种边链路数据的发送装置，包括：
    接收单元，其接收网络设备发送的包括边链路授权的控制信息，其中所述控制信息还指示所述边链路授权所针对的至少一个目标信息；
    目标确定单元，其根据所述目标信息确定至少一个目标和/或逻辑信道；以及
    发送单元，其根据所述边链路授权发送所述至少一个目标和/或逻辑信道的边链路数据。
  2. 根据权利要求1所述的装置，其中，所述目标信息包括如下至少之一：目标终端设备标识，目标终端设备组标识，链路标识或连接标识，混合自动重传请求实体标识，混合自动重传请求进程标识，源终端设备标识和目标终端设备标识，源终端设备标识和目标终端设备组标识，根据目标终端设备标识计算的标识，根据目标终端设备组标识计算的标识，根据源终端设备标识和目标终端设备标识计算的标识，根据源终端设备标识和目标终端设备组标识计算的标识。
  3. 根据权利要求1所述的装置，其中，所述目标信息被包含在所述控制信息中。
  4. 根据权利要求1所述的装置，其中，所述目标信息由所述控制信息所在的资源指示。
  5. 根据权利要求4所述的装置，其中，所述目标信息对应于所述控制信息所在搜索空间的时间起始位置和/或频率起始位置；和/或
    所述目标信息对应于所述控制信息所在控制资源集合的时间起始位置和/或频率起始位置。
  6. 根据权利要求1所述的装置，其中，通过使用所述目标信息对所述控制信息的循环冗余校验进行加扰来指示所述目标信息。
  7. 根据权利要求1所述的装置，其中，所述目标信息为层2信息或者高于层2的层的信息。
  8. 根据权利要求1所述的装置，其中，所述目标信息为层1信息；所述装置还包括：
    映射单元，其将所述层1信息映射为至少一个层2信息或者高于层2的层的信息。
  9. 根据权利要求8所述的装置，其中，所述接收单元还用于：接收所述网络设 备发送的所述层1信息与所述层2信息或者所述高于层2的层的信息之间的映射关系信息。
  10. 根据权利要求1所述的装置，其中，所述目标确定单元用于：选择标识与所述目标信息一致的至少一个目标；以及确定所选择的所述至少一个目标所对应的逻辑信道。
  11. 根据权利要求1所述的装置，其中，所述目标确定单元用于：选择对应的目标标识与所述目标信息一致的至少一个逻辑信道。
  12. 根据权利要求1所述的装置，其中，所述目标确定单元从有数据要传输的逻辑信道中选择至少一个逻辑信道，并且按照逻辑信道优先级的降序分配所述边链路授权指示的资源给所选择的所述至少一个逻辑信道。
  13. 根据权利要求1所述的装置，其中，所述边链路授权还关联以下的至少一个：子载波间隔，物理边链路共享信道传输长度，载波信息。
  14. 根据权利要求13所述的装置，其中，所述逻辑信道被配置的子载波间隔包括所述边链路授权关联的子载波间隔；和/或
    所述逻辑信道被配置的物理边链路共享信道传输长度大于或等于所述边链路授权关联的物理边链路共享信道传输长度；和/或
    所述逻辑信道被配置的允许的载波包括所述边链路授权关联的载波信息。
  15. 根据权利要求1所述的装置，其中，所述发送单元还用于在需要发送所述边链路数据时，向所述网络设备发送调度请求；
    所述接收单元还用于接收所述网络设备发送的包括上行授权的控制信息；以及
    所述发送单元还用于根据所述上行授权向所述网络设备发送边链路缓存状态报告以请求所述边链路授权。
  16. 根据权利要求15所述的装置，其中，所述边链路缓存状态报告包括至少一个链路标识。
  17. 一种边链路数据的配置装置，包括：
    发送单元，其向终端设备发送包括边链路授权的控制信息，其中所述控制信息还指示所述边链路授权所针对的至少一个目标信息。
  18. 根据权利要求17所述的装置，其中，所述装置还包括：
    接收单元，其接收所述终端设备发送的调度请求；
    所述发送单元还用于向所述终端设备发送包括上行授权的控制信息；以及
    所述接收单元还用于接收所述终端设备发送的用于请求所述边链路授权的边链路缓存状态报告。
  19. 根据权利要求17所述的装置，其中，所述目标信息包括如下至少之一：目标终端设备标识，目标终端设备组标识，链路标识或连接标识，混合自动重传请求实体标识，混合自动重传请求进程标识，源终端设备标识和目标终端设备标识，源终端设备标识和目标终端设备组标识，根据目标终端设备标识计算的标识，根据目标终端设备组标识计算的标识，根据源终端设备标识和目标终端设备标识计算的标识，根据源终端设备标识和目标终端设备组标识计算的标识。
  20. 一种通信***，包括：
    网络设备，其向第一终端设备发送包括边链路授权的控制信息，其中所述控制信息还指示所述边链路授权所针对的至少一个目标信息；
    第一终端设备，其根据所述目标信息确定至少一个目标和/或逻辑信道；以及根据所述边链路授权发送所述至少一个目标和/或逻辑信道的边链路数据；以及
    第二终端设备，其接收所述第一终端设备发送的所述边链路数据。
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