WO2022022237A1 - 侧链协调资源指示方法及装置、存储介质、终端 - Google Patents

侧链协调资源指示方法及装置、存储介质、终端 Download PDF

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WO2022022237A1
WO2022022237A1 PCT/CN2021/104612 CN2021104612W WO2022022237A1 WO 2022022237 A1 WO2022022237 A1 WO 2022022237A1 CN 2021104612 W CN2021104612 W CN 2021104612W WO 2022022237 A1 WO2022022237 A1 WO 2022022237A1
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recommended
sci
resources
resource
information
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English (en)
French (fr)
Inventor
周欢
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Beijing Ziguang Zhanrui Communication Technology Co Ltd
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Beijing Ziguang Zhanrui Communication Technology Co Ltd
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Priority to JP2023504134A priority Critical patent/JP7520210B2/ja
Priority to KR1020237006808A priority patent/KR102922869B1/ko
Priority to EP21848922.7A priority patent/EP4192049B1/en
Publication of WO2022022237A1 publication Critical patent/WO2022022237A1/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H04L1/1819—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of additional or different redundancy
    • 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
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1864—ARQ related signaling
    • 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
    • H04L1/1893—Physical mapping arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • H04L5/0035—Resource allocation in a cooperative multipoint environment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/563—Allocation or scheduling criteria for wireless resources based on priority criteria of the wireless resources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/25—Control channels or signalling for resource management between terminals via a wireless link, e.g. sidelink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria

Definitions

  • the present invention relates to the field of communication technologies, and in particular, to a side chain coordination resource indication method and device, a storage medium and a terminal.
  • V2X Vehicle to Everything
  • NR also known as New Wireless
  • V2X technology includes vehicle-to-vehicle (V2V), vehicle-to-person (V2P), vehicle-to-network (V2N), vehicle-to-road (V2I), vehicle and surrounding any node (V2X) technology, which refers to the use of wireless communication
  • Sensing detection and other technologies collect road traffic environment information, and provide reliable traffic information for vehicle drivers and pedestrians through real-time, efficient, and two-way information interaction and sharing between vehicles, vehicles, people, and infrastructure. Effectively improve the safety of the road system and improve the traffic environment.
  • UE-A User Equipment
  • UE-B Sidelink
  • SL Sidelink
  • the UE may select an unavailable side chain resource, resulting in communication delay or failure.
  • the technical problem solved by the present invention is how to provide a side chain coordination resource indication method and device, a storage medium and a terminal in a V2X system, which can coordinate the resources used by each UE for side chain communication and avoid communication delay or failure.
  • an embodiment of the present invention provides a side chain coordination resource indication method, the method includes: receiving a resource coordination request sent by a requesting UE, and determining recommended/non-recommended resources according to the resource coordination request; The information of the recommended/non-recommended resources is sent to the requesting UE, so that the requesting UE obtains the recommended/non-recommended resources and determines the resources for sending data to other UEs; wherein, the information of the recommended/non-recommended resources carried by SCI.
  • the information of the recommended/non-recommended resources includes a time-domain position and/or a frequency-domain position of the recommended/non-recommended resource in a preset resource pool.
  • the recommended/non-recommended resources are located within a time-domain window, and the time-domain window is a period of time region obtained by dividing the time-domain positions of the available resources.
  • the information of the recommended/non-recommended resources further includes the priorities of the recommended/non-recommended resources.
  • the sending the information of the recommended/non-recommended resources to the requesting UE includes: using the same PSCCH to send the information of the recommended/non-recommended resources corresponding to multiple requesting UEs.
  • the SCI carries an identifier of the requesting UE, so that each requesting UE can identify its corresponding SCI according to the identifier.
  • the SCI includes an identification part and an indication part
  • the identification part is used to instruct the SCI to carry the information of the recommended/non-recommended resources
  • the indication part is used to carry the information of the recommended/non-recommended resources. information.
  • the SCI adopts a 1-A format
  • the SCI includes a first-stage SCI
  • the identifying unit includes a bit field corresponding to the frequency domain resource allocation in the first-stage SCI.
  • the SCI also includes a second stage SCI
  • the indicating section includes a bit field corresponding to the time domain resource allocation in the first stage SCI and the Beta offset indicator, the number of DMRS ports, and the Beta offset indicator in the second stage SCI.
  • the information of the recommended/non-recommended resources is carried by one or more of the bit fields corresponding to the HARQ process ID, the new data indicator, the redundancy version, the source identifier, the destination identifier, the area identifier, and the communication area requirement. .
  • An embodiment of the present invention also provides a side chain coordination resource indication method, the method includes: when data needs to be transmitted to other UEs, generating a resource coordination request, and sending the resource coordination request to the coordinating UE, so that the The coordinating UE determines recommended/non-recommended resources according to the resource coordination request; receives the recommended/non-recommended resource information returned by the coordinating UE, and acquires the recommended/non-recommended resources; Resources for other UEs to send data; wherein, the information of the recommended/non-recommended resources is carried by the SCI.
  • the acquiring the recommended/non-recommended resource includes: acquiring a time-domain location and/or a frequency-domain location of the recommended/non-recommended resource in a preset resource pool according to information of the recommended/non-recommended resource.
  • the recommended/non-recommended resources are located in the same time domain window, and the time domain window is a period of time region obtained by dividing the time domain positions of the available resources.
  • the information of the recommended/non-recommended resources further includes the priorities of the recommended/non-recommended resources.
  • multiple requesting UEs monitor the same PSCCH to obtain information of respective recommended/non-recommended resources.
  • the receiving the recommended/non-recommended resource information returned by the coordination UE includes: monitoring its own PSCCH to receive the corresponding SCI.
  • the SCI carries the identity of the corresponding requesting UE, and after receiving the corresponding SCI, the method further includes: identifying whether the received SCI is the corresponding SCI according to the identity of the requesting UE in the SCI.
  • the SCI includes an identification unit and an indication unit
  • the method further includes: identifying the SCI to carry the information of the recommended/non-recommended resource according to the identification unit; acquiring the recommended/non-recommended resource according to the indication unit Information on non-recommended resources.
  • the SCI adopts a 1-A format
  • the SCI includes a first-stage SCI
  • the identifying unit includes a bit field corresponding to the frequency domain resource allocation in the first-stage SCI.
  • the SCI also includes a second stage SCI
  • the indicating section includes a bit field corresponding to the time domain resource allocation in the first stage SCI and the Beta offset indicator, the number of DMRS ports, and the Beta offset indicator in the second stage SCI.
  • the information of the recommended/non-recommended resources is carried by one or more of the bit fields corresponding to the HARQ process ID, the new data indicator, the redundancy version, the source identifier, the destination identifier, the area identifier, and the communication area requirement. .
  • An embodiment of the present invention further provides a side chain coordination resource indication device, the device includes: a resource coordination module, configured to receive a resource coordination request sent by a requesting UE, and determine recommended/non-recommended resources according to the resource coordination request; resources an instruction module, configured to send the information of the recommended/non-recommended resources to the requesting UE, so that the requesting UE obtains the recommended/non-recommended resources and determines the resources for sending data to other UEs; wherein, the The information of recommended/non-recommended resources is carried through SCI.
  • An embodiment of the present invention further provides a side chain coordination resource indication device, the device includes: a coordination request module, configured to generate a resource coordination request when data needs to be transmitted to other UEs, and send the resource coordination request to the coordination UE, so that the coordinating UE determines recommended/non-recommended resources according to the resource coordination request; a coordination resource acquisition module is configured to receive the recommended/non-recommended resource information returned by the coordinating UE, and acquire the recommended/non-recommended resources Recommended resources; a data sending module, configured to determine resources for sending data to other UEs according to the recommended/non-recommended resources; wherein, the information of the recommended/non-recommended resources is carried by the SCI.
  • a coordination request module configured to generate a resource coordination request when data needs to be transmitted to other UEs, and send the resource coordination request to the coordination UE, so that the coordinating UE determines recommended/non-recommended resources according to the resource coordination request
  • a coordination resource acquisition module is configured to receive the recommended/
  • An embodiment of the present invention further provides a storage medium, on which a computer program is stored, and the computer program executes the steps of the above method when the computer program is run by a processor.
  • An embodiment of the present invention further provides a UE, including the apparatus, or, including a memory and a processor, where the memory stores a computer program that can run on the processor, and the processor runs the computer When the program executes the steps of the above method.
  • An embodiment of the present invention provides a side chain coordination resource indication method, the method includes: receiving a resource coordination request sent by a requesting UE, and determining recommended/non-recommended resources according to the resource coordination request; The information of the requesting UE is sent to the requesting UE, so that the requesting UE obtains the recommended/non-recommended resources and determines the resources for sending data to other UEs; wherein, the information of the recommended/non-recommended resources is carried by the SCI.
  • the embodiment of the present invention provides a side chain resource coordination mechanism for SL transmission, and the coordinating UE can provide information of recommended and/or non-recommended resources for one or more requesting UEs, and the requesting UE can /Non-recommended resources Select their own appropriate resources to transmit data with other UEs, so as to avoid requesting UEs to select unavailable sidechain resources, causing communication delays or failures.
  • the requesting UE can decode the time domain position and the frequency domain position of the recommended/non-recommended resources indicated by the SCI in the resource pool respectively, so as to determine the recommended/non-recommended resources.
  • the recommended/non-recommended resources determined by the coordinating UE for each requesting UE are located in the same time domain window, so that the recommended or non-recommended resources of each requesting UE are relatively separate and will not interfere with each other.
  • the time domain position of the SCI indicating recommended/non-recommended resources is located within a time domain window, which can effectively save signaling overhead.
  • the SCI also indicates the priority of recommended/non-recommended resources, so that the UE can select appropriate resources to transmit data from multiple recommended/non-recommended resource blocks.
  • the coordinating UE uses different PSCCHs to send the SCI corresponding to each requesting UE, thereby saving channel resources.
  • this solution may cause conflicts among multiple requesting UEs.
  • each requesting UE has its own PSCCH, and each requesting UE can identify whether it is its own SCI according to the target ID carried in it, and decode it if it is its own SCI, which can effectively avoid conflicts between requesting UEs.
  • FIG. 1 is a schematic flowchart of a side chain coordination resource indication method according to an embodiment of the present invention
  • FIG. 2 is an application schematic diagram of a side chain coordination resource indication method according to an embodiment of the present invention
  • FIG. 3 is a time-domain schematic diagram of a side chain coordination resource indication method according to an embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of another side chain coordination resource indication method according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a side chain coordination resource indication device according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of another side chain coordination resource indication apparatus according to an embodiment of the present invention.
  • the UE may select an unavailable sidechain resource, resulting in communication delay or failure.
  • an embodiment of the present invention provides a side chain coordination resource indication method, the method includes: receiving a resource coordination request sent by a requesting UE, and determining recommended/non-recommended resources according to the resource coordination request; The information of recommended/non-recommended resources is sent to the requesting UE, so that the requesting UE obtains the recommended/non-recommended resources and determines the resources for sending data to other UEs; wherein, the information of the recommended/non-recommended resources is passed through SCI bearer. Therefore, resources used for SL communication between UEs can be coordinated, and communication delay or failure can be avoided.
  • the recommended/non-recommended resources refer to recommended resources and/or non-recommended resources.
  • the embodiment of the present invention provides a side chain coordination resource indication method.
  • the method for requesting sidechain coordination resources in this embodiment can be applied to a typical V2X system, where there are multiple UEs, at least one of which is a coordination UE for coordinating sidechain transmission resources of surrounding UEs.
  • a resource coordination request may be sent to the coordinating UE to request resource assistance information (Resource Assistance Information, RAI for short), that is, information about recommended/non-recommended resources.
  • RAI Resource Assistance Information
  • the UE that sends the resource coordination request at this time is called the requesting UE.
  • one or more coordinating UEs may be included in a V2X UE group to coordinate side chain transmission resources in the entire group.
  • Multiple requesting UEs may send resource coordination requests to one coordinating UE, and the coordinating UE may send RAI to the UE according to the identifier of each requesting UE or the time when the requesting UE needs to transmit data.
  • the other UE refers to each UE other than the requesting UE, and more specifically, it may be a UE other than the requesting UE, the coordinating UE, and may also be the coordinating UE in some cases.
  • FIG. 2 is a schematic diagram of an application of a method for requesting side chain coordination resources according to an embodiment of the present invention.
  • Multiple requesting UEs ie, UE-B in UE-A
  • the method includes the following steps:
  • Step S101 Receive a resource coordination request sent by a requesting UE, and determine recommended/non-recommended resources according to the resource coordination request.
  • Recommended resources are the resources used by the requesting UE to transmit data in the following period of time
  • non-recommended resources are the resources that can be used by the requesting UE to transmit data in the following period of time and cannot be used by the requesting UE to transmit data.
  • Resources The result of coordinating the UE to coordinate resources for each requesting UE is to provide the UE with recommended/non-recommended resources, so that the requesting UE can use the recommended resources to transmit data, or to prevent the requesting UE from selecting non-recommended resources when selecting resources for data transmission. resource, causing the transmission to fail.
  • the RAI may indicate one or more physical resource blocks (Physical Resource Blocks, PRBs for short) in the resource pool as recommended/non-recommended resources.
  • PRBs Physical Resource Blocks
  • side chain resources for communication between UEs are obtained from a preset resource pool, and the resource pool includes one or more PRBs, which are referred to as resource blocks for short.
  • the information on the location (including the time domain location, frequency domain location, offset, etc.) of each PRB in the preset resource pool is consistent with the understanding of each requesting UE and the coordinating UE.
  • the location of each PRB in the preset resource pool (including time domain location, frequency domain location, offset, etc.) is configured by high-level signaling, and the high-level signaling may include a time domain indication of resource blocks in the resource pool. and the frequency domain indication, the resource blocks in the resource pool can be determined according to the two parts indicated by the high-level signaling.
  • the high-layer signaling may be radio resource control (Radio Resource Control, RRC for short) signaling or broadcast signaling.
  • Step S102 Send the information of the recommended/non-recommended resources to the requesting UE, so that the requesting UE obtains the recommended/non-recommended resources and determines resources for sending data to other UEs.
  • the information of the recommended/non-recommended resources is carried by the SCI.
  • the coordinating UE sends the information of recommended/non-recommended resources (that is, RAI) to the requesting UE, and the RAI can be carried by the side chain control information (Sidelink Control Information, referred to as SCI), for example, in the V2X system, the coordinating UE transmits to the requesting UE.
  • SCI Side Chain Control Information
  • the coordinating UE transmits to the requesting UE.
  • RAI's SCI may refer to the related design of the SCI in the prior art.
  • the sidechain coordination resource indication method in FIG. 1 is performed on the side of the coordinating UE.
  • This solution provides a sidechain resource coordination mechanism for SL transmission.
  • the coordinating UE can provide recommended and/or non-recommended resources for one or more requesting UEs. information, the requesting UE can select its own suitable resources to transmit data with other UEs according to the recommended and/or non-recommended resources, thereby avoiding the requesting UE to select unavailable sidechain resources, causing communication delay or failure.
  • the SCI indicates a time domain position and/or a frequency domain position of the recommended/non-recommended resource within a preset resource pool.
  • the recommended/non-recommended resource indicated in the SCI is one or more PRBs in the resource pool, and the time-domain location/frequency-domain location of the recommended/non-recommended resource is the time-domain location/frequency-domain location of the PRB in the resource pool.
  • the SCI may only indicate the time domain location of the recommended/non-recommended resources in the above resource pool, or may only indicate the frequency domain location of the recommended/non-recommended resources in the resource pool, or may simultaneously indicate the time domain location of the recommended/non-recommended resources and frequency domain location.
  • the data domain of the SCI can be divided into a time domain indication domain and a frequency domain indication domain, and the requesting UE can decode them respectively, and obtain recommendations from the time domain indication domain.
  • the time domain position of the non-recommended resource, and the frequency domain position of the recommended/non-recommended resource is obtained from the frequency domain indication domain.
  • the requesting UE can decode the time domain position and frequency domain position of the recommended/non-recommended resources indicated by the SCI respectively, so as to determine the recommended/non-recommended resources.
  • the recommended/non-recommended resources are located within a time-domain window, and the time-domain window is a period of time region obtained by dividing the time-domain positions of the available resources.
  • the available resources are resources available for each requesting UE to perform SL transmission, and the available resources may correspond to multiple PRBs in the resource pool, which are also referred to as available PRBs.
  • the available resources are divided into multiple time-domain windows according to the distribution of their time-domain locations.
  • the time domain span of each time domain window (also referred to as the window length of the time domain window) can take the same value or different values.
  • the window length is configured by high-level signaling, coordinating the UE and the requesting UE on the time domain window and its window length. understand the same.
  • the SCI indicates the time domain window where the recommended/non-recommended resources are located and the relative time domain positions of the recommended/non-recommended resources within the time domain window.
  • the recommended/non-recommended resources determined by the coordinating UE for each requesting UE are located in the same time domain window, thereby making the recommended or non-recommended resources of each requesting UE relatively separate and will not interfere with each other.
  • the time domain position of the SCI indicating recommended/non-recommended resources is located within a time domain window, which can effectively save signaling overhead. Specifically, the smaller the window length of the set time domain window is, the smaller the signaling overhead is.
  • the logical time slot (Logical slot) of the available PRB is called the available logical time slot, and the time domain granularity indicated by the SCI is an integer multiple of the available logical time slot.
  • the number of bits in the time domain indication field of the SCI is determined by the window length of the time domain window.
  • FIG. 3 is a time-domain schematic diagram of a method for requesting a side chain coordination resource according to an embodiment of the present invention
  • the logical time slots of available PRBs in the resource pool correspond to Slot n, Slot n+1,..., Slot n+11.
  • This part is divided into multiple time-domain windows (as a non-limiting example, 3 time-windows in Figure 3, namely time-domain window m, time-domain window m+1, time-domain window m+2)
  • each time-domain window includes multiple Slots (as a non-limiting example, each time window in FIG. 3 includes 4 Slots).
  • the coordinating UE ie UE-A in FIG.
  • UE-B1 and UE-B2 send a resource coordination request to UE-A in Slot n, and UE-A returns RAI to UE-B1 and UE-B2 in Slot n+2, the RAI indicates UE-B2's Both the recommended resource and the non-recommended resource are within the time domain window m+1, and both the recommended resource and the non-recommended resource of UE-B1 are within the time domain window m+2.
  • the high layer signaling divides the available channel into several subchannels (Subchannels) by frequency, and the subchannel is the frequency domain granularity of the available resources, and the frequency domain granularity indicated by the SCI is an integer multiple of the subchannel.
  • the subchannel may correspond to the frequency domain position of the resource pool, and the corresponding relationship is indicated by high-level signaling.
  • the number of bits in the frequency domain indication field of the SCI is determined by the frequency domain granularity and the resource pool.
  • the time-domain granularity and frequency-domain granularity indicated by the SCI are configured by high-layer signaling.
  • the information of the recommended/non-recommended resources further includes the priorities of the recommended/non-recommended resources.
  • the priority of the recommended or non-recommended resource is used to indicate the recommendation or non-recommendation degree of the coordinated UE for each PRB.
  • the requesting UE may first select recommended resources with high priority or preferentially filter out non-recommended resources with high priority.
  • the SCI also indicates the priority of recommended/non-recommended resources, so that the UE can select appropriate resources to transmit data from multiple recommended/non-recommended resource blocks.
  • the sending the information of the recommended/non-recommended resources to the requesting UE includes: using the same PSCCH to send the information of the recommended/non-recommended resources corresponding to multiple requesting UEs.
  • a single coordinating UE can use the same Physical Sidelink Control Channel (PSCCH) to send SCIs carrying recommended/non-recommended resource information to multiple requesting UEs.
  • PSCCH Physical Sidelink Control Channel
  • multiple requesting UEs need to monitor the PSCCH for Receive an SCI carrying information about recommended/non-recommended resources.
  • the information of the recommended/non-recommended resources corresponding to multiple requesting UEs may be carried in the same SCI.
  • each requesting UE needs to decode the SCI of the PSCCH to determine whether the recommended/non-recommended resources it needs are carried in the SCI. Information.
  • information of recommended/non-recommended resources corresponding to each requesting UE is carried in different SCIs, and multiple requesting UEs monitor the PSCCH. If the SCI carrying the information of recommended/non-recommended resources is monitored, identify whether the SCI is your own SCI; if the identification result is yes, decode the SCI to obtain the information of recommended/non-recommended resources; if the identification result is no, then Does not decode SCI.
  • the SCI carrying the information of recommended/non-recommended resources carries the identifier of the requesting UE, so that each requesting UE can identify its corresponding SCI according to the identifier.
  • the SCI carries an identification (Identify, ID for short) of the requesting UE, also called a destination (destination, also called a destination) ID, which can be generated for the physical layer ID or the group ID of the requesting UE.
  • the coordinating UE uses different PSCCHs to send the SCI corresponding to each requesting UE, thereby saving channel resources.
  • this solution may cause conflicts among multiple requesting UEs.
  • the coordinating UE sends the SCI corresponding to each requesting UE using different PSCCHs.
  • the SCI carries an identifier of the requesting UE, so that each requesting UE can identify its corresponding SCI according to the identifier.
  • Each requesting UE has its own PSCCH, and each requesting UE can identify whether it is its own SCI according to the target ID carried in it, and decode it if it is its own SCI.
  • the SCI includes an identification part and an indication part
  • the identification part is used to instruct the SCI to carry the information of the recommended/non-recommended resources
  • the indication part is used to carry the recommended/non-recommended resources resource information.
  • the requesting UE can decode the recommendation based on the coding rules of the SCI carrying the information of the recommended/non-recommended resources / Information about non-recommended resources.
  • the identification part can be several bits preset in the SCI, and these bits can be set to a preset value (for example, all 1s or all 0s), and when the UE is requested to decode these bits to the preset value, That is, it is known that the SCI is the SCI carrying the RAI.
  • a preset value for example, all 1s or all 0s
  • the SCI adopts a 1-A format
  • the SCI includes a first-stage SCI
  • the first-stage SCI is used to schedule PSSCH
  • the identification section includes frequency domain resource allocation in the first-stage SCI corresponding bit field.
  • the SCI is SCI format 1-A
  • the first-stage SCI is used to schedule the Physical Sidelink Shared Channel (PSSCH) and the second-stage SCI (ie 2nd-stage-SCI) on PSSCH.
  • PSSCH Physical Sidelink Shared Channel
  • 2nd-stage-SCI 2nd-stage-SCI
  • the frequency domain resource assignment (Frequency resource assignment) field in the first stage SCI format 1-A is set as the identification part. For example, when the frequency domain resource assignment field is all 1s, the SCI is the SCI carrying the RAI.
  • the SCI also includes a second stage SCI
  • the indicating section includes a bit field corresponding to the time domain resource allocation in the first stage SCI and the Beta offset indicator, the number of DMRS ports, and the Beta offset indicator in the second stage SCI.
  • Other parts of the data field of the first stage SCI format 1-A can be used as an indication part to carry the information of recommended/non-recommended resources.
  • bit fields in the first-stage SCI may refer to the design of the SCI in the prior art.
  • priority Priority
  • resource reservation period Resource reservation period
  • demodulation reference signal demodulation reference signal, DMRS for short
  • pattern pattern
  • Beta offset indicator (Beta_offset indicator), demodulation reference signal (DMRS for short) port number (Number of DMRS port), modulation and Modulation and coding scheme
  • DMRS demodulation reference signal
  • Port number Number of DMRS port
  • modulation and Modulation and coding scheme These bit fields can be used to carry information about recommended/non-recommended resources.
  • modulation and coding strategy Modulation and Coding Scheme, MCS for short
  • table indicator table indicator
  • the information of the recommended/non-recommended resources is composed of one or more of the HARQ process ID, new data indicator, redundancy version, source identifier, destination identifier, area identifier, and bit fields corresponding to communication area requirements. a load.
  • the SCI carrying RAI can also adopt the 2-A or 2-B format, which is called SCI format 2-A and SCI format 2-B at this time.
  • SCI format 2-A is used for PSSCH decoding, and the reply signaling corresponding to the HARQ operation may include transmission confirmation reply ACK and transmission failure reply (NACK), or there may be no reply when transmission fails.
  • NACK transmission failure reply
  • SCI format 2-B is used for PSSCH decoding, and the reply signaling corresponding to the HARQ operation is only included in the transmission failure reply (NACK).
  • the hybrid automatic repeat request Hybrid Automatic Repeat reQuest, HARQ
  • process ID HARQ Process ID for short
  • new data indicator New data indicator
  • redundant Redundancy version source ID
  • Source ID Source ID
  • destination ID Destination ID
  • channel state information request Channel State Information request, CSI request for short
  • the HARQ process ID new data indicator, redundancy version, source ID, destination ID, zone ID (zone ID), and communication range requirement (Communication range requirement) Both bit fields can be used to carry information about recommended/non-recommended resources.
  • an embodiment of the present invention further provides a side chain coordination resource indication method, the method includes:
  • Step S401 when data needs to be transmitted to other UEs, generate a resource coordination request, and send the resource coordination request to the coordination UE, so that the coordination UE determines recommended/non-recommended resources according to the resource coordination request;
  • Step S402 receiving the recommended/non-recommended resource information returned by the coordination UE, and acquiring the recommended/non-recommended resource;
  • Step S403 determining resources for sending data to other UEs according to the recommended/non-recommended resources
  • the information of the recommended/non-recommended resources is carried by the SCI.
  • the acquiring the recommended/non-recommended resource includes: acquiring a time-domain location and/or a frequency-domain location of the recommended/non-recommended resource in a preset resource pool according to information of the recommended/non-recommended resource.
  • the recommended/non-recommended resources are located in the same time domain window, and the time domain window is a period of time region obtained by dividing the time domain positions of the available resources.
  • the information of the recommended/non-recommended resources further includes the priorities of the recommended/non-recommended resources.
  • multiple requesting UEs monitor the same PSCCH to obtain information of respective recommended/non-recommended resources.
  • the receiving the recommended/non-recommended resource information returned by the coordination UE includes: monitoring its own PSCCH to receive the corresponding SCI.
  • the SCI carries an identifier of the corresponding requesting UE, and after receiving the corresponding SCI, the method further includes: identifying whether the received SCI is the corresponding SCI according to the identifier of the requesting UE in the SCI.
  • the SCI includes an identification unit and an indication unit
  • the method further includes: identifying the SCI to carry the information of the recommended/non-recommended resource according to the identification unit; acquiring the recommended/non-recommended resource according to the indication unit Information on non-recommended resources.
  • the SCI adopts a 1-A format
  • the SCI includes a first-stage SCI
  • the identifying unit includes a bit field corresponding to the frequency domain resource allocation in the first-stage SCI.
  • the SCI also includes a second stage SCI
  • the indicating section includes a bit field corresponding to the time domain resource allocation in the first stage SCI and the Beta offset indicator, the number of DMRS ports, and the Beta offset indicator in the second stage SCI.
  • the information of the recommended/non-recommended resources is carried by one or more of the bit fields corresponding to the HARQ process ID, the new data indicator, the redundancy version, the source identifier, the destination identifier, the area identifier, and the communication area requirement. .
  • An embodiment of the present invention further provides a side chain coordination resource indicating device, please refer to FIG. 5 , the side chain coordination resource indicating device 50 includes:
  • a resource coordination module 501 configured to receive a resource coordination request sent by a requesting UE, and determine recommended/non-recommended resources according to the resource coordination request;
  • a resource indication module 502 configured to send the information of the recommended/non-recommended resource to the requesting UE, so that the requesting UE obtains the recommended/non-recommended resource and determines the resource for sending data to other UEs;
  • the information of the recommended/non-recommended resources is carried by the SCI.
  • the above-mentioned side chain coordination resource requesting apparatus 50 may correspond to a chip with a side chain coordination resource request function in the UE, or a chip with a data processing function, such as a system-on-a-chip (System-On-a-Chip) , SOC), baseband chip, etc.; or corresponds to a chip module including a chip with a side chain coordination resource request function in the UE; or corresponds to a chip module with a data processing function chip, or corresponds to the UE.
  • a chip with a side chain coordination resource request function in the UE or a chip with a data processing function, such as a system-on-a-chip (System-On-a-Chip) , SOC), baseband chip, etc.
  • a chip module including a chip with a side chain coordination resource request function in the UE or corresponds to a chip module with a data processing function chip, or corresponds to the UE.
  • An embodiment of the present invention further provides a side chain coordination resource indicating device, please refer to FIG. 6 , the side chain coordination resource indicating device 60 includes:
  • a coordination request module 601 configured to generate a resource coordination request when data needs to be transmitted to other UEs, and send the resource coordination request to the coordination UE, so that the coordination UE determines recommendation/non-recommendation according to the resource coordination request resource;
  • a coordination resource acquisition module 602 configured to receive the information of recommended/non-recommended resources returned by the coordination UE, and acquire the recommended/non-recommended resources;
  • a data sending module 603, configured to determine resources for sending data to other UEs according to the recommended/non-recommended resources
  • the information of the recommended/non-recommended resources is carried by the SCI.
  • the above-mentioned side chain coordination resource requesting device 60 may correspond to a chip with a side chain coordination resource request function in the UE, or a chip with a data processing function, such as a system-on-a-chip (System-On-a-Chip) , SOC), baseband chip, etc.; or corresponds to a chip module including a chip with a side chain coordination resource request function in the UE; or corresponds to a chip module with a data processing function chip, or corresponds to the UE.
  • a chip with a side chain coordination resource request function in the UE or a chip with a data processing function, such as a system-on-a-chip (System-On-a-Chip) , SOC), baseband chip, etc.
  • a chip module including a chip with a side chain coordination resource request function in the UE or corresponds to a chip module with a data processing function chip, or corresponds to the UE.
  • each module/unit included in each device and product described in the above embodiments it may be a software module/unit, a hardware module/unit, or a part of a software module/unit, a part of which is a software module/unit. is a hardware module/unit.
  • each module/unit included therein may be implemented by hardware such as circuits, or at least some of the modules/units may be implemented by a software program.
  • Running on the processor integrated inside the chip the remaining (if any) part of the modules/units can be implemented by hardware such as circuits; for each device and product applied to or integrated in the chip module, the modules/units contained therein can be They are all implemented by hardware such as circuits, and different modules/units can be located in the same component of the chip module (such as chips, circuit modules, etc.) or in different components, or at least some of the modules/units can be implemented by software programs.
  • the software program runs on the processor integrated inside the chip module, and the remaining (if any) part of the modules/units can be implemented by hardware such as circuits; for each device and product applied to or integrated in the terminal, each module contained in it
  • the units/units may all be implemented in hardware such as circuits, and different modules/units may be located in the same component (eg, chip, circuit module, etc.) or in different components in the terminal, or at least some of the modules/units may be implemented by software programs Realization, the software program runs on the processor integrated inside the terminal, and the remaining (if any) part of the modules/units can be implemented in hardware such as circuits.
  • the embodiments of the present application further provide a storage medium, on which computer instructions are stored, and when the computer instructions are executed, the steps of the methods described in FIG. 1 to FIG. 3 or FIG. 4 are executed.
  • the storage medium may be a computer-readable storage medium, for example, may include non-volatile memory (non-volatile) or non-transitory (non-transitory) memory, and may also include optical disks, mechanical hard disks, solid-state disks, and the like.
  • An embodiment of the present application further provides a terminal, including the side chain coordination resource requesting apparatus as shown in FIG. 5 or FIG. 6 , or including a memory and a processor, where the memory stores data that can run on the processor.
  • a computer program the processor executes the steps of the method described in FIG. 1 to FIG. 3 or FIG. 4 when the computer program is executed.
  • the terminal includes, but is not limited to, terminal equipment such as mobile phones, computers, and tablet computers.
  • the core network described in the embodiments of the present application may be an evolved packet core (EPC for short), a 5G Core Network (5G core network), or a new type of core network in a future communication system.
  • the 5G Core Network consists of a group of devices, and implements access and mobility management functions (Access and Mobility Management Function, AMF) for functions such as mobility management, provides packet routing and forwarding and quality of service (Quality of Service, referred to as QoS) ) management and other functions of the user plane function (User Plane Function, UPF), providing session management, IP address allocation and management and other functions of the session management function (Session Management Function, referred to as SMF) and so on.
  • AMF Access and Mobility Management Function
  • QoS Quality of Service
  • UPF User Plane Function
  • SMF Session Management Function
  • a base station (base station, BS for short) in the embodiments of the present application which may also be referred to as base station equipment, is a device deployed in a radio access network (RAN) to provide a wireless communication function.
  • the equipment that provides base station functions in 2G networks includes base transceiver stations (English: base transceiver station, referred to as BTS), the equipment that provides base station functions in 3G networks includes NodeB (NodeB), and the equipment that provides base station functions in 4G networks.
  • eNB evolved Node B
  • WLAN wireless local area networks
  • AP access point
  • 5G new wireless New Radio (NR for short) is a device gNB that provides base station functions
  • ng-eNB node B
  • E-UTRA Evolved Universal Terrestrial Radio Access
  • the base station in the embodiment of the present application also includes a device that provides a base station function in a new communication system in the future, and the like.
  • the network side network in the embodiments of the present application refers to a communication network that provides communication services for terminals, including a base station of a radio access network, a base station controller of a radio access network, and a device on the core network side.
  • the terminals in the embodiments of this application may refer to various forms of user equipment (user equipment, UE for short), access terminals, subscriber units, subscriber stations, mobile stations, and mobile stations (mobile stations, built as MSs) ), remote station, remote terminal, mobile device, user terminal, terminal equipment, wireless communication device, user agent or user device.
  • user equipment user equipment
  • UE user equipment
  • access terminals subscriber units, subscriber stations, mobile stations, and mobile stations (mobile stations, built as MSs)
  • remote station remote terminal, mobile device, user terminal, terminal equipment, wireless communication device, user agent or user device.
  • the terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), Handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices with wireless communication capabilities, terminal devices in future 5G networks or future evolved public land mobile communication networks (Public Land Mobile Network, referred to for short) PLMN), which is not limited in this embodiment of the present application.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the embodiment of this application defines the unidirectional communication link from the access network to the terminal as the downlink, the data transmitted on the downlink is the downlink data, and the transmission direction of the downlink data is called the downlink direction ; And the one-way communication link from the terminal to the access network is the uplink, the data transmitted on the uplink is the uplink data, and the transmission direction of the uplink data is called the uplink direction.
  • connection in the embodiments of this application refers to various connection modes such as direct connection or indirect connection to realize communication between devices, which is not limited in this embodiment of the application.
  • the processor may be a central processing unit (central processing unit, CPU for short), and the processor may also be other general-purpose processors, digital signal processors (digital signal processor, DSP for short) , application specific integrated circuit (ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be read-only memory (ROM for short), programmable read-only memory (PROM for short), erasable programmable read-only memory (EPROM for short) , Electrically Erasable Programmable Read-Only Memory (electrically EPROM, EEPROM for short) or flash memory.
  • Volatile memory may be random access memory (RAM), which acts as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous Dynamic random access memory
  • SDRAM synchronous Dynamic random access memory
  • DDR SDRAM double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM Synchronous connection dynamic random access memory
  • DR RAM direct memory bus random access memory
  • the above embodiments may be implemented in whole or in part by software, hardware, firmware or any other combination.
  • the above-described embodiments may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated.
  • the computer may be a general purpose computer, special purpose computer, computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server, or data center Transmission by wire or wireless to another website site, computer, server or data center.
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like that contains one or more sets of available media.
  • the usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media.
  • the semiconductor medium may be a solid state drive.
  • the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be dealt with in the embodiments of the present application. implementation constitutes any limitation.
  • the disclosed method, apparatus and system may be implemented in other manners.
  • the device embodiments described above are only illustrative; for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation; for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units.
  • the above-mentioned integrated units implemented in the form of software functional units can be stored in a computer-readable storage medium.
  • the above-mentioned software function unit is stored in a storage medium, and includes several instructions to cause a terminal (which may be a personal computer, a server, or a network device, etc.) to execute some steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM for short), Random Access Memory (RAM for short), magnetic disk or CD, etc. that can store program codes medium.

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Abstract

一种侧链协调资源指示方法及装置、存储介质、终端，其中，所述方法包括：接收请求UE发送的资源协调请求，并根据所述资源协调请求确定推荐/非推荐资源；根据所述推荐/非推荐资源生成资源辅助SCI，并将所述资源辅助SCI发送至所述请求UE，以使所述请求UE根据所述资源辅助SCI确定向其他UE发送数据的资源。通过该方法，能够协调各个UE之间进行侧链通信使用的资源，避免通信延迟或失败。

Description

侧链协调资源指示方法及装置、存储介质、终端
本申请要求2020年7月29日提交中国专利局、申请号为202010747168.4、发明名称为“侧链协调资源指示方法及装置、存储介质、终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域，尤其涉及一种侧链协调资源指示方法及装置、存储介质、终端。
背景技术
2018年，第三代合作伙伴计划(3rd Generation Partnership Project，简称3GPP)第80次全会通过了5G新空口(New Radio，简称NR，也称新无线)车联网(Vehicle to Everything，简称V2X)的研究项目。V2X技术包括车与车(V2V)、车与人(V2P)、车与网络(V2N)、车与路(V2I)间、车与周围任意节点(V2X)技术，它指的是使用无线通信、传感探测等技术收集道路交通环境信息，通过车与车、车与人、车与基础设施之间实时、高效、双向的信息交互和共享，为车辆驾驶员和行人提供可靠的交通信息，从而有效提高道路系统安全、改善交通环境。
然而，在现有的V2X系统中不支持让一个用户设备(User Equipment，简称UE)(记作UE-A)向另一个UE(记作UE-B)指示侧链(Sidelink，简称SL)传输资源的机制。在UE-A与UE-B之间进行通信时，可能导致UE选到了不可用的侧链资源，造成通信延迟或失败。
发明内容
本发明解决的技术问题是在V2X系统中，如何提供一种侧链协 调资源指示方法及装置、存储介质、终端，能够协调各个UE之间进行侧链通信使用的资源，避免通信延迟或失败。
为解决上述技术问题，本发明实施例提供一种侧链协调资源指示方法，所述方法包括：接收请求UE发送的资源协调请求，并根据所述资源协调请求确定推荐/非推荐资源；将所述推荐/非推荐资源的信息发送至所述请求UE，以使所述请求UE获取所述推荐/非推荐资源并确定向其他UE发送数据的资源；其中，所述推荐/非推荐资源的信息通过SCI承载。
可选的，所述推荐/非推荐资源的信息包括所述推荐/非推荐资源在预设资源池内的时域位置和/或频域位置。
可选的，所述推荐/非推荐资源位于一时域窗内，所述时域窗为对可用资源的时域位置划分得到的一段时间区域。
可选的，所述推荐/非推荐资源的信息还包括推荐/非推荐资源的优先级。
可选的，所述将所述推荐/非推荐资源的信息发送至所述请求UE，包括：使用同一PSCCH发送多个请求UE对应的推荐/非推荐资源的信息。
可选的，使用不同的PSCCH发送各个请求UE对应的SCI。
可选的，所述SCI中携带请求UE的标识，以使各个请求UE根据所述标识识别自己对应的SCI。
可选的，所述SCI包括识别部和指示部，所述识别部用于指示所述SCI承载所述推荐/非推荐资源的信息，所述指示部用于承载所述推荐/非推荐资源的信息。
可选的，所述SCI采用1-A格式，所述SCI包括第一阶段SCI，所述识别部包括第一阶段SCI中的频域资源分配对应的比特域。
可选的，所述SCI还包括第二阶段SCI,所述指示部包括第一阶段SCI中的时域资源分配对应的比特域以及第二阶段SCI中的Beta偏移指示器、DMRS端口数量、调制和编码方案对应的比特域中的一个或多个。
可选的，所述推荐/非推荐资源的信息由HARQ进程ID、新数据指示器、冗余版本、源标识、目的标识、区域标识、通信区域要求对应的比特域中的一个或多个承载。
本发明实施例还提供一种侧链协调资源指示方法，所述方法包括：当需要向其他UE传输数据时，生成资源协调请求，并将所述资源协调请求发送至协调UE，以使所述协调UE根据所述资源协调请求确定推荐/非推荐资源；接收所述协调UE返回的推荐/非推荐资源的信息，并获取所述推荐/非推荐资源；根据所述推荐/非推荐资源确定向其他UE发送数据的资源；其中，所述推荐/非推荐资源的信息通过SCI承载。
可选的，所述获取所述推荐/非推荐资源，包括：根据推荐/非推荐资源的信息获取所述推荐/非推荐资源在预设资源池内的时域位置和/或频域位置。
可选的，所述推荐/非推荐资源位于同一时域窗内，所述时域窗为对可用资源的时域位置划分得到的一段时间区域。
可选的，所述推荐/非推荐资源的信息还包括推荐/非推荐资源的优先级。
可选的，多个请求UE监听同一PSCCH以获取各自对应的推荐/非推荐资源的信息。
可选的，所述接收所述协调UE返回的推荐/非推荐资源的信息，包括：监听自己的PSCCH以接收对应的SCI。
可选的，所述SCI中携带对应的请求UE的标识，所述接收对应 的SCI之后，还包括：根据SCI中请求UE的标识识别接收的SCI是否为自己对应的SCI。
可选的，所述SCI包括识别部和指示部，所述方法还包括：根据所述识别部识别所述SCI承载所述推荐/非推荐资源的信息；根据所述指示部获取所述推荐/非推荐资源的信息。
可选的，所述SCI采用1-A格式，所述SCI包括第一阶段SCI，所述识别部包括第一阶段SCI中的频域资源分配对应的比特域。
可选的，所述SCI还包括第二阶段SCI,所述指示部包括第一阶段SCI中的时域资源分配对应的比特域以及第二阶段SCI中的Beta偏移指示器、DMRS端口数量、调制和编码方案对应的比特域中的一个或多个。
可选的，所述推荐/非推荐资源的信息由HARQ进程ID、新数据指示器、冗余版本、源标识、目的标识、区域标识、通信区域要求对应的比特域中的一个或多个承载。
本发明实施例还提供一种侧链协调资源指示装置，所述装置包括：资源协调模块，用于接收请求UE发送的资源协调请求，并根据所述资源协调请求确定推荐/非推荐资源；资源指示模块，用于将所述推荐/非推荐资源的信息发送至所述请求UE，以使所述请求UE获取所述推荐/非推荐资源并确定向其他UE发送数据的资源；其中，所述推荐/非推荐资源的信息通过SCI承载。
本发明实施例还提供一种侧链协调资源指示装置，所述装置包括：协调请求模块，用于当需要向其他UE传输数据时，生成资源协调请求，并将所述资源协调请求发送至协调UE，以使所述协调UE根据所述资源协调请求确定推荐/非推荐资源；协调资源获取模块，用于接收所述协调UE返回的推荐/非推荐资源的信息，并获取所述推荐/非推荐资源；数据发送模块，用于根据所述推荐/非推荐资源确定向其他UE发送数据的资源；其中，所述推荐/非推荐资源的信息通过 SCI承载。
本发明实施例还提供一种存储介质，其上存储有计算机程序，所述计算机程序被处理器运行时执行上述方法的步骤。
本发明实施例还提供一种UE，包括所述的装置，或者，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，所述处理器运行所述计算机程序时执行上述方法的步骤。
与现有技术相比，本发明实施例的技术方案具有以下有益效果：
本发明实施例提供一种侧链协调资源指示方法，所述方法包括：接收请求UE发送的资源协调请求，并根据所述资源协调请求确定推荐/非推荐资源；将所述推荐/非推荐资源的信息发送至所述请求UE，以使所述请求UE获取所述推荐/非推荐资源并确定向其他UE发送数据的资源；其中，所述推荐/非推荐资源的信息通过SCI承载。较之现有技术，本发明实施例为SL传输提供了一种侧链资源协调的机制，协调UE可以为一个或多个请求UE提供推荐和/或非推荐资源的信息，请求UE可以依据推荐/非推荐资源选择自己合适的资源与其他UE进行数据传输，从而避免请求UE选到了不可用的侧链资源，造成通信延迟或失败。
进一步地，请求UE能够分别解码SCI指示的推荐/非推荐资源在资源池内的时域位置和频域位置，以确定推荐/非推荐资源。
进一步地，协调UE为各个请求UE确定的推荐/非推荐资源位于同一时域窗内，由此，使得各个请求UE的推荐或非推荐资源相对分立，不会相互干扰。且SCI指示推荐/非推荐资源的时域位置位于一个时域窗内，能够有效节省信令开销。
进一步地，SCI还指示推荐/非推荐资源的优先级，以使得UE能够从多个推荐/非推荐的资源块中选择合适的资源传输数据。
进一步地，协调UE使用不同的PSCCH发送各个请求UE对应 的SCI，由此能够节省信道资源。然而该方案可能会造成多个请求UE之间发生冲突。进而，每一请求UE均有自己的PSCCH，各个请求UE可根据中携带的目标ID识别是否为自己的SCI，若为自己的SCI则对其进行解码，能够有效避免请求UE之间的冲突。
附图说明
图1是本发明实施例的一种侧链协调资源指示方法的流程示意图；
图2是本发明实施例的一种侧链协调资源指示方法的应用示意图；
图3是本发明实施例的一种侧链协调资源指示方法的时域示意图；
图4是本发明实施例的另一种侧链协调资源指示方法的流程示意图；
图5是本发明实施例的一种侧链协调资源指示装置的结构示意图；
图6是本发明实施例的另一种侧链协调资源指示装置的结构示意图。
具体实施方式
如背景技术所言，在现有的V2X网络中的UE进行侧链通信时，可能导致UE选到了不可用的侧链资源，造成通信延迟或失败。
为解决上述问题，本发明实施例提供一种侧链协调资源指示方法，所述方法包括：接收请求UE发送的资源协调请求，并根据所述资源协调请求确定推荐/非推荐资源；将所述推荐/非推荐资源的信息发送至所述请求UE，以使所述请求UE获取所述推荐/非推荐资源并确定向其他UE发送数据的资源；其中，所述推荐/非推荐资源的信息 通过SCI承载。从而，能够协调各个UE之间进行SL通信使用的资源，避免通信延迟或失败。其中，推荐/非推荐资源是指推荐资源和/或非推荐资源。
为使本申请的上述目的、特征和有益效果能够更为明显易懂，下面结合附图对本申请的具体实施例做详细的说明。
本发明实施例提供一种侧链协调资源指示方法。
本实施例的侧链协调资源请求方法可以应用于典型的V2X系统中，该系统中具有多个UE，其中至少一个UE是协调UE，用于协调其周围的UE的侧链传输资源。在UE需要与其周围的其他UE进行数据传输之前，可先向协调UE发送资源协调请求以请求资源辅助信息(Resource Assistance Information，简称RAI)，也即推荐/非推荐资源的信息。此时发送资源协调请求的UE称为请求UE。可选的，在一个V2X的UE组内可包含一个或多个协调UE以协调整组内的侧链传输资源。多个请求UE可向一个协调UE发送资源协调请求，协调UE根据各个请求UE的标识或者请求UE需要传输数据的时间，向该UE发送RAI。此外，其他UE指的是请求UE以外的各个UE，更具体而言，其可以是请求UE、协调UE以外的UE，在某些情况下也可以是协调UE。
请参见图2，图2为本发明实施例的一种侧链协调资源请求方法的应用示意图，多个请求UE(也即图2中的UE-B)可向同一协调UE(图2中的UE-A)发送资源协调请求。
请参见图1，所该方法包括下述步骤：
步骤S101，接收请求UE发送的资源协调请求，并根据所述资源协调请求确定推荐/非推荐资源。
推荐资源为在之后的一段时间内被该请求UE用以传输数据的资源，非推荐资源为在之后的一段时间内可被该请求UE用以传输数据 的资源不可被该请求UE用以传输数据的资源。协调UE为各个请求UE协调资源的结果是为该UE提供推荐/非推荐资源，以使得该请求UE能够使用推荐资源传输数据，或者使得该请求UE在选取传输数据的资源时避免选到非推荐资源，造成传输失败。
可选的，RAI可指示资源池内的一个或多个物理资源块(Physical Resource Block，简称PRB)作为推荐/非推荐资源。
在V2X系统中，UE之间通信的侧链资源从预设的资源池中获取，资源池内包括一个或多个PRB，简称资源块。预设的资源池中各个PRB的位置(包括时域位置、频域位置、偏移量等)信息在各个请求UE和协调UE的理解一致。可选的，预设的资源池中各个PRB的位置(包括时域位置、频域位置、偏移量等)由高层信令配置，该高层信令可包括对资源池内资源块的时域指示和频域指示两部分，资源池内的资源块可根据高层信令指示的两部分确定。可选的，高层信令可以为无线资源控制(Radio Resource Control，简称RRC)信令或广播信令等。
步骤S102，将所述推荐/非推荐资源的信息发送至所述请求UE，以使所述请求UE获取所述推荐/非推荐资源并确定向其他UE发送数据的资源。
其中，所述推荐/非推荐资源的信息通过SCI承载。
协调UE将推荐/非推荐资源的信息(也即RAI)发送至请求UE，该RAI可通过侧链控制信息(Sidelink Control Information，简称SCI)承载，例如在V2X系统中增加协调UE向请求UE传输RAI的SCI。除承载信息的不同外，所述增加的SCI的其他定义以及实现方式可以参照现有技术中的SCI的相关设计。
图1中的侧链协调资源指示方法于协调UE侧执行，该方案为SL传输提供了一种侧链资源协调的机制，协调UE可以为一个或多个请求UE提供推荐和/或非推荐资源的信息，请求UE可以依据推荐和/ 或非推荐资源选择自己合适的资源与其他UE进行数据传输，从而避免请求UE选到了不可用的侧链资源，造成通信延迟或失败。
在一个实施例中，所述SCI指示所述推荐/非推荐资源在预设资源池内的时域位置和/或频域位置。
SCI中指示的推荐/非推荐资源为资源池中的一个或多个PRB，则推荐/非推荐资源的时域位置/频域位置为该PRB在资源池中的时域位置/频域位置。
SCI可仅指示推荐/非推荐资源的在上述资源池内的时域位置，也可仅指示推荐/非推荐资源的在资源池内的频域位置，也可同时指示推荐/非推荐资源的时域位置和频域位置。
其中，当SCI同时指示时域位置和频域位置时，可将该SCI的数据域划分为时域指示域和频域指示域，请求UE可对其分别进行解码，从时域指示域获取推荐/非推荐资源的时域位置，从频域指示域获取推荐/非推荐资源的频域位置。
本实施例中，请求UE能够分别解码SCI指示的推荐/非推荐资源的时域位置和频域位置，以确定推荐/非推荐资源。
可选的，所述推荐/非推荐资源位于一时域窗内，所述时域窗为对可用资源的时域位置划分得到的一段时间区域。
可用资源为可供各个请求UE进行SL传输的资源，可用资源可对应资源池中的多个PRB，也称可用PRB。
将可用资源按照其时域位置的分布划分为多个时域窗。每一时域窗的时域跨度(也称该时域窗的窗长)可取相同值，也可取不同值，该窗长由高层信令配置，协调UE与请求UE对时域窗及其窗长理解一致。此时，SCI指示推荐/非推荐资源所在的时域窗以及推荐/非推荐资源在该时域窗内的相对时域位置。
本实施例中，协调UE为各个请求UE确定的推荐/非推荐资源位 于同一时域窗内，由此，使得各个请求UE的推荐或非推荐资源相对分立，不会相互干扰。且SCI指示推荐/非推荐资源的时域位置位于一个时域窗内，能够有效节省信令开销。具体地，设置的时域窗的窗长越小，信令开销越小。
可用PRB的逻辑时隙(Logical slot)称为可用逻辑时隙，则SCI指示的时域粒度为可用逻辑时隙的整数倍。
可选的，SCI的时域指示域的比特数由时域窗的窗长确定。
请参见图3，图3为本发明实施例的一种侧链协调资源请求方法的时域示意图；资源池内的可用PRB的逻辑时隙对应图3中的Slot n,Slot n+1,…,Slot n+11。这一部分被分为多个时域窗(作为一个非限制性的例子，如图3中的3个时间窗，分别为时域窗m，时域窗m+1，时域窗m+2)，每一时域窗中包含多个Slot(作为一个非限制性的例子，图3中每一时间窗包含4个Slot)。协调UE(即图3中UE-A)为各个请求UE(作为一个非限制性的例子，图3中示出了2个请求UE，即UE-B1和UE-B2)分配的推荐资源和非推荐资源都处于同一个时域窗内。图3中UE-B1和UE-B2在Slot n中向UE-A发送资源协调请求，UE-A在Slot n+2中向UE-B1和UE-B2返回RAI，该RAI指示UE-B2的推荐资源和非推荐资源都处于时域窗m+1内，UE-B1的推荐资源和非推荐资源都处于时域窗m+2内。
可选的，高层信令将可用信道按频率划分为若干个子信道(Subchannel)，该子信道即为可用资源的频域粒度，SCI指示的频域粒度为子信道的整数倍。
可选的，子信道可对应资源池的频域位置，该对应关系由高层信令指示。
可选的，SCI的频域指示域的比特数由频域粒度和资源池确定。
可选的，SCI指示的时域粒度和频域粒度由高层信令配置。
在一个具体实施例中，所述推荐/非推荐资源的信息还包括推荐/非推荐资源的优先级。
若推荐资源或非推荐资源为多个资源块，推荐或非推荐资源的优先级用以表示协调UE对各个PRB的推荐或非推荐程度。对应地，请求UE接收到SCI后，可先选择优先级高的推荐资源或优先滤除优先级高的非推荐资源。
本实施例中，SCI还指示推荐/非推荐资源的优先级，以使得UE能够从多个推荐/非推荐的资源块中选择合适的资源传输数据。
在一个实施例中，所述将所述推荐/非推荐资源的信息发送至所述请求UE，包括：使用同一PSCCH发送多个请求UE对应的推荐/非推荐资源的信息。
单个协调UE可以使用相同物理侧链控制信道(Physical Sidelink Control Channel，简称PSCCH)向多个请求UE发送承载推荐/非推荐资源的信息的SCI，此时，多个请求UE都需监听该PSCCH以接收承载推荐/非推荐资源的信息的SCI。
可选的，多个请求UE对应的推荐/非推荐资源的信息可承载于同一SCI，此时各个请求UE需要对PSCCH的SCI进行解码，以确定SCI中是否承载其需要的推荐/非推荐资源的信息。
可选的，各个请求UE对应的推荐/非推荐资源的信息承载于不同的SCI，多个请求UE监听该PSCCH。若监听到承载推荐/非推荐资源的信息的SCI时，识别该SCI是否为自己的SCI；若识别结果为是，则对SCI解码获取推荐/非推荐资源的信息；若识别结果为否，则不对SCI解码。
可选的，承载推荐/非推荐资源的信息的SCI中携带请求UE的标识，以使各个请求UE根据所述标识识别自己对应的SCI。
其中，SCI中携带请求UE的标识(Identify，简称ID)，也称目 标(destination，也称目的)ID，可以为该请求UE的物理层ID或者组内标识ID生成。
本实施例中，协调UE使用不同的PSCCH发送各个请求UE对应的SCI，由此能够节省信道资源。然而该方案可能会造成多个请求UE之间发生冲突。
在一个实施例中，协调UE使用不同的PSCCH发送各个请求UE对应的SCI。
可选的，所述SCI中携带请求UE的标识，以使各个请求UE根据所述标识识别自己对应的SCI。
每一请求UE均有自己的PSCCH，各个请求UE可根据中携带的目标ID识别是否为自己的SCI，若为自己的SCI则对其进行解码。
本实施例中，能够有效避免请求UE之间的冲突。
在一个实施例中，所述SCI包括识别部和指示部，所述识别部用于指示所述SCI承载所述推荐/非推荐资源的信息，所述指示部用于承载所述推荐/非推荐资源的信息。
也即，将承载推荐/非推荐资源的信息的SCI中的部分比特作为识别部，以使得请求UE在解码该识别部后，可基于承载推荐/非推荐资源的信息的SCI的编码规则解码推荐/非推荐资源的信息。
所述识别部可以为SCI中预设的若干个比特位，可将这些比特位设置为预设值(例如全1或全0)，当请求UE在这些比特位解码到该预设值时，即知道该SCI为承载RAI的SCI。
在一个实施例中，所述SCI采用1-A格式，所述SCI包括第一阶段SCI，所述第一阶段SCI用于调度PSSCH，所述识别部包括第一阶段SCI中的频域资源分配对应的比特域。
此时SCI为SCI format 1-A，其第一阶段SCI用于调度物理侧链 共享信道(Physical Sidelink Shared Channel，简称PSSCH)和位于PSSCH上的第二阶段SCI(也即2nd-stage-SCI)。关于SCI format 1-A的详细设计请参见协议版本Release 16(也可简称R16)。
将第一阶段SCI format 1-A中的频域资源分配(Frequency resource assignment)域设置为识别部，例如，当频域资源分配域为全1时，则该SCI为承载RAI的SCI。
可选的，所述SCI还包括第二阶段SCI,所述指示部包括第一阶段SCI中的时域资源分配对应的比特域以及第二阶段SCI中的Beta偏移指示器、DMRS端口数量、调制和编码方案对应的比特域中的一个或多个。
将第一阶段SCI format 1-A的数据域的其他部分(如时域资源分配(Time resource assignment)域)可作为指示部，承载推荐/非推荐资源的信息。
如果采用上述的比特域承载推荐/非推荐资源的信息，第一阶段SCI中的其他比特域可参照现有技术中的SCI的设计。例如，优先级(Priority)、资源预留期间(Resource reservation period)、解调参考信号(demodulation reference signal，简称DMRS)模式(pattern)等。
可选的，第二阶段SCI(2nd-stage SCI format)中的Beta偏移指示器(Beta_offset indicator)、解调参考信号(demodulation reference signal，简称DMRS)端口数量(Number of DMRS port)、调制和编码方案(Modulation and coding scheme)这些比特域都可用于承载推荐/非推荐资源的信息。
其他不承载推荐/非推荐资源的信息的比特域，如调制与编码策略(Modulation and Coding Scheme，简称MCS)表格指示符(table indicator)等可参照现有技术中的SCI的设计。
在一个实施例中，所述推荐/非推荐资源的信息由HARQ进程ID、 新数据指示器、冗余版本、源标识、目的标识、区域标识、通信区域要求对应的比特域中的一个或多个承载。
其中，承载RAI的SCI还可以采用2-A或2-B格式，此时称为SCI format 2-A，SCI format 2-B。
SCI format 2-A用于PSSCH的解码，其HARQ操作对应的回复信令可包括传输确认回复ACK和传输失败回复(NACK)，也可在传输失败时无回复。
SCI format 2-B用于PSSCH的解码，其HARQ操作对应的回复信令仅包括在传输失败回复(NACK)。
其中，当承载RAI的SCI为SCI format 2-A时，其中的混合自动重传请求(Hybrid Automatic Repeat reQuest，HARQ)进程ID(简称HARQ Process ID)、新数据指示器(New data indicator)、冗余版本(Redundancy version)、源ID(Source ID)、目的ID(Destination ID)、信道状态信息请求(Channel State Information request，简称CSI request)这些比特域都可用于承载推荐/非推荐资源的信息。
当承载RAI的SCI为SCI format 2-B时，其中的HARQ进程ID、新数据指示器、冗余版本、源ID、目的ID、区域ID(zone ID)、通信区域要求(Communication range requirement)这些比特域都可用于承载推荐/非推荐资源的信息。
关于SCI format 2-A，SCI format 2-B的具体设计可参见协议版本Release 16中的相关说明。
请参见图4，本发明实施例还提供一种侧链协调资源指示方法，所述方法包括：
步骤S401，当需要向其他UE传输数据时，生成资源协调请求，并将所述资源协调请求发送至协调UE，以使所述协调UE根据所述资源协调请求确定推荐/非推荐资源；
步骤S402，接收所述协调UE返回的推荐/非推荐资源的信息，并获取所述推荐/非推荐资源；
步骤S403，根据所述推荐/非推荐资源确定向其他UE发送数据的资源；
其中，所述推荐/非推荐资源的信息通过SCI承载。
可选的，所述获取所述推荐/非推荐资源，包括：根据推荐/非推荐资源的信息获取所述推荐/非推荐资源在预设资源池内的时域位置和/或频域位置。
可选的，所述推荐/非推荐资源位于同一时域窗内，所述时域窗为对可用资源的时域位置划分得到的一段时间区域。
可选的，所述推荐/非推荐资源的信息还包括推荐/非推荐资源的优先级。
可选的，多个请求UE监听同一PSCCH以获取各自对应的推荐/非推荐资源的信息。
可选的，所述接收所述协调UE返回的推荐/非推荐资源的信息，包括：监听自己的PSCCH以接收对应的SCI。
可选的，所述SCI中携带对应的请求UE的标识，所述接收对应的SCI之后，还包括：根据SCI中请求UE的标识识别接收的SCI是否为自己对应的SCI。
可选的，所述SCI包括识别部和指示部，所述方法还包括：根据所述识别部识别所述SCI承载所述推荐/非推荐资源的信息；根据所述指示部获取所述推荐/非推荐资源的信息。
可选的，所述SCI采用1-A格式，所述SCI包括第一阶段SCI，所述识别部包括第一阶段SCI中的频域资源分配对应的比特域。
可选的，所述SCI还包括第二阶段SCI,所述指示部包括第一阶段 SCI中的时域资源分配对应的比特域以及第二阶段SCI中的Beta偏移指示器、DMRS端口数量、调制和编码方案对应的比特域中的一个或多个。
可选的，所述推荐/非推荐资源的信息由HARQ进程ID、新数据指示器、冗余版本、源标识、目的标识、区域标识、通信区域要求对应的比特域中的一个或多个承载。
关于图4中侧链协调资源指示方法的原理、具体实现和有益效果请参照前文及图1至图3示出的所述方法中关于请求UE(或者UE-B)的相关描述，此处不再赘述。
本发明实施例还提供一种侧链协调资源指示装置，请参见图5，所述侧链协调资源指示装置50包括：
资源协调模块501，用于接收请求UE发送的资源协调请求，并根据所述资源协调请求确定推荐/非推荐资源；
资源指示模块502，用于将所述推荐/非推荐资源的信息发送至所述请求UE，以使所述请求UE获取所述推荐/非推荐资源并确定向其他UE发送数据的资源；
其中，所述推荐/非推荐资源的信息通过SCI承载。
关于该侧链协调资源请求装置50的原理、具体实现和有益效果请参照前文及图1至图3示出的所述方法的相关描述，此处不再赘述。
在具体实施中，上述的侧链协调资源请求装置50可以对应于UE中具有侧链协调资源请求功能的芯片，或者对应于具有数据处理功能的芯片，例如片上系统(System-On-a-Chip，SOC)、基带芯片等；或者对应于UE中包括具有侧链协调资源请求功能芯片的芯片模组；或者对应于具有数据处理功能芯片的芯片模组，或者对应于UE。
本发明实施例还提供一种侧链协调资源指示装置，请参见图6，所述侧链协调资源指示装置60包括：
协调请求模块601，用于当需要向其他UE传输数据时，生成资源协调请求，并将所述资源协调请求发送至协调UE，以使所述协调UE根据所述资源协调请求确定推荐/非推荐资源；
协调资源获取模块602，用于接收所述协调UE返回的推荐/非推荐资源的信息，并获取所述推荐/非推荐资源；
数据发送模块603，用于根据所述推荐/非推荐资源确定向其他UE发送数据的资源；
其中，所述推荐/非推荐资源的信息通过SCI承载。
关于该侧链协调资源请求装置60的原理、具体实现和有益效果请参照前文及图4示出的所述方法的相关描述，此处不再赘述。
在具体实施中，上述的侧链协调资源请求装置60可以对应于UE中具有侧链协调资源请求功能的芯片，或者对应于具有数据处理功能的芯片，例如片上系统(System-On-a-Chip，SOC)、基带芯片等；或者对应于UE中包括具有侧链协调资源请求功能芯片的芯片模组；或者对应于具有数据处理功能芯片的芯片模组，或者对应于UE。
在具体实施中，关于上述实施例中描述的各个装置、产品包含的各个模块/单元，其可以是软件模块/单元，也可以是硬件模块/单元，或者也可以部分是软件模块/单元，部分是硬件模块/单元。
例如，对于应用于或集成于芯片的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于芯片内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现；对于应用于或集成于芯片模组的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，不同的模块/单元可以位于芯片模组的同一组件(例如芯片、电路模块等)或者不同组件中，或者，至少部分模块/单元可以采用软件程序的方式实现， 该软件程序运行于芯片模组内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现；对于应用于或集成于终端的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，不同的模块/单元可以位于终端内同一组件(例如，芯片、电路模块等)或者不同组件中，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于终端内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现。
本申请实施例还提供了一种存储介质，其上存储有计算机指令，所述计算机指令运行时执行图1至图3或图4所述方法的步骤。所述存储介质可以是计算机可读存储介质，例如可以包括非挥发性存储器(non-volatile)或者非瞬态(non-transitory)存储器，还可以包括光盘、机械硬盘、固态硬盘等。
本申请实施例还提供了一种终端，包括如图5或图6所述的侧链协调资源请求装置，或者，包括存储器和处理器，所述存储器上存储有能够在所述处理器上运行的计算机程序，所述处理器运行所述计算机程序时执行图1至图3或图4中所述方法的步骤。该终端包括但不限于手机、计算机、平板电脑等终端设备。
本申请实施例中所述核心网可以是演进型分组核心网(evolved packet core，简称EPC)、5G Core Network(5G核心网)，还可以是未来通信系统中的新型核心网。5G Core Network由一组设备组成，并实现移动性管理等功能的接入和移动性管理功能(Access and Mobility Management Function，简称AMF)、提供数据包路由转发和服务质量(Quality of Service，简称QoS)管理等功能的用户面功能(User Plane Function,UPF)、提供会话管理、IP地址分配和管理等功能的会话管理功能(Session Management Function，简称SMF)等。
本申请实施例中的基站(base station，简称BS)，也可称为基站设备，是一种部署在无线接入网(RAN)用以提供无线通信功能的装置。例如在2G网络中提供基站功能的设备包括基地无线收发站(英 文：base transceiver station,简称BTS)，3G网络中提供基站功能的设备包括节点B(NodeB)，在4G网络中提供基站功能的设备包括演进的节点B(evolved NodeB，简称eNB)，在无线局域网络(wireless local area networks，简称WLAN)中，提供基站功能的设备为接入点(access point，简称AP)，5G新无线(New Radio，简称NR)中的提供基站功能的设备gNB,以及继续演进的节点B(ng-eNB)，其中gNB和终端之间采用NR技术进行通信，ng-eNB和终端之间采用E-UTRA(Evolved Universal Terrestrial Radio Access)技术进行通信，gNB和ng-eNB均可连接到5G核心网。本申请实施例中的基站还包含在未来新的通信系统中提供基站功能的设备等。
本申请实施例中的网络侧network是指为终端提供通信服务的通信网络，包含无线接入网的基站，还可以包含无线接入网的基站控制器，还可以包含核心网侧的设备。
常用词汇的定义或说明：
【涉及终端的称呼】本申请实施例中的终端可以指各种形式的用户设备(user equipment，简称UE)、接入终端、用户单元、用户站、移动站、移动台(mobile station，建成MS)、远方站、远程终端、移动设备、用户终端、终端设备(terminal equipment)、无线通信设备、用户代理或用户装置。终端设备还可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，简称SIP)电话、无线本地环路(Wireless Local Loop，简称WLL)站、个人数字处理(Personal Digital Assistant，简称PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(Public Land Mobile Network，简称PLMN)中的终端设备等，本申请实施例对此并不限定。
【涉及上行、下行的定义】本申请实施例定义接入网到终端的单向通信链路为下行链路，在下行链路上传输的数据为下行数据，下行 数据的传输方向称为下行方向；而终端到接入网的单向通信链路为上行链路，在上行链路上传输的数据为上行数据，上行数据的传输方向称为上行方向。
【和或或的定义】应理解，本文中术语“和或或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“或”，表示前后关联对象是一种“或”的关系。
【多个的定义】本申请实施例中出现的“多个”是指两个或两个以上。
【第一、第二的定义】本申请实施例中出现的第一、第二等描述，仅作示意与区分描述对象之用，没有次序之分，也不表示本申请实施例中对设备个数的特别限定，不能构成对本申请实施例的任何限制。
【连接的定义】本申请实施例中出现的“连接”是指直接连接或者间接连接等各种连接方式，以实现设备间的通信，本申请实施例对此不做任何限定。
应理解，本申请实施例中，所述处理器可以为中央处理单元(central processing unit，简称CPU)，该处理器还可以是其他通用处理器、数字信号处理器(digital signal processor，简称DSP)、专用集成电路(application specific integrated circuit，简称ASIC)、现成可编程门阵列(field programmable gate array，简称FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
还应理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，简称ROM)、可编程只读存储器(programmable ROM，简称PROM)、可擦除可编程只读存储器(erasable PROM，简称EPROM)、电可擦除可编程只读存 储器(electrically EPROM，简称EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，简称RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的随机存取存储器(random access memory，简称RAM)可用，例如静态随机存取存储器(static RAM，简称SRAM)、动态随机存取存储器(DRAM)、同步动态随机存取存储器(synchronous DRAM，简称SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，简称DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，简称ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，简称SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，简称DR RAM)。
上述实施例，可以全部或部分地通过软件、硬件、固件或其他任意组合来实现。当使用软件实现时，上述实施例可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令或计算机程序。在计算机上加载或执行所述计算机指令或计算机程序时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以为通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线或无线方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集合的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质。半导体介质可以是固态硬盘。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑 确定，而不应对本申请实施例的实施过程构成任何限定。
在本申请所提供的几个实施例中，应该理解到，所揭露的方法、装置和系统，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的；例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式；例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理包括，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
上述以软件功能单元的形式实现的集成的单元，可以存储在一个计算机可读取存储介质中。上述软件功能单元存储在一个存储介质中，包括若干指令用以使得一台终端(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，简称ROM)、随机存取存储器(Random Access Memory，简称RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
虽然本发明披露如上，但本发明并非限定于此。任何本领域技术人员，在不脱离本发明的精神和范围内，均可作各种更动与修改，因此本发明的保护范围应当以权利要求所限定的范围为准。

Claims (26)

  1. 一种侧链协调资源指示方法，其特征在于，所述方法包括：
    接收请求UE发送的资源协调请求，并根据所述资源协调请求确定推荐/非推荐资源；
    将所述推荐/非推荐资源的信息发送至所述请求UE，以使所述请求UE获取所述推荐/非推荐资源并确定向其他UE发送数据的资源；
    其中，所述推荐/非推荐资源的信息通过SCI承载。
  2. 根据权利要求1所述的方法，其特征在于，所述推荐/非推荐资源的信息包括所述推荐/非推荐资源在预设资源池内的时域位置和/或频域位置。
  3. 根据权利要求2所述的方法，其特征在于，所述推荐/非推荐资源位于一时域窗内，所述时域窗为对可用资源的时域位置划分得到的一段时间区域。
  4. 根据权利要求1所述的方法，其特征在于，所述推荐/非推荐资源的信息还包括推荐/非推荐资源的优先级。
  5. 根据权利要求1所述的方法，其特征在于，所述将所述推荐/非推荐资源的信息发送至所述请求UE，包括：
    使用同一PSCCH发送多个请求UE对应的推荐/非推荐资源的信息。
  6. 根据权利要求1所述的方法，其特征在于，使用不同的PSCCH发送各个请求UE对应的SCI。
  7. 根据权利要求5或6所述的方法，其特征在于，所述SCI中携带请求UE的标识，以使各个请求UE根据所述标识识别自己对应的SCI。
  8. 根据权利要求1所述的方法，其特征在于，所述SCI包括识别部 和指示部，所述识别部用于指示所述SCI承载所述推荐/非推荐资源的信息，所述指示部用于承载所述推荐/非推荐资源的信息。
  9. 根据权利要求8所述的方法，其特征在于，所述SCI采用1-A格式，所述SCI包括第一阶段SCI，所述识别部包括第一阶段SCI中的频域资源分配对应的比特域。
  10. 根据权利要求9所述的方法，其特征在于，所述SCI还包括第二阶段SCI,所述指示部包括第一阶段SCI中的时域资源分配对应的比特域以及第二阶段SCI中的Beta偏移指示器、DMRS端口数量、调制和编码方案对应的比特域中的一个或多个。
  11. 根据权利要求1所述的方法，其特征在于，所述推荐/非推荐资源的信息由HARQ进程ID、新数据指示器、冗余版本、源标识、目的标识、区域标识、通信区域要求对应的比特域中的一个或多个承载。
  12. 一种侧链协调资源指示方法，其特征在于，所述方法包括：
    当需要向其他UE传输数据时，生成资源协调请求，并将所述资源协调请求发送至协调UE，以使所述协调UE根据所述资源协调请求确定推荐/非推荐资源；
    接收所述协调UE返回的推荐/非推荐资源的信息，并获取所述推荐/非推荐资源；
    根据所述推荐/非推荐资源确定向其他UE发送数据的资源；
    其中，所述推荐/非推荐资源的信息通过SCI承载。
  13. 根据权利要求12所述的方法，其特征在于，所述获取所述推荐/非推荐资源，包括：
    根据推荐/非推荐资源的信息获取所述推荐/非推荐资源在预设资源池内的时域位置和/或频域位置。
  14. 根据权利要求13所述的方法，其特征在于，所述推荐/非推荐资源位于同一时域窗内，所述时域窗为对可用资源的时域位置划分得到的一段时间区域。
  15. 根据权利要求12所述的方法，其特征在于，所述推荐/非推荐资源的信息还包括推荐/非推荐资源的优先级。
  16. 根据权利要求12所述的方法，其特征在于，多个请求UE监听同一PSCCH以获取各自对应的推荐/非推荐资源的信息。
  17. 根据权利要求12所述的方法，其特征在于，所述接收所述协调UE返回的推荐/非推荐资源的信息，包括：
    监听自己的PSCCH以接收对应的SCI。
  18. 根据权利要求16或17所述的方法，其特征在于，所述SCI中携带对应的请求UE的标识，所述接收对应的SCI之后，还包括：
    根据SCI中请求UE的标识识别接收的SCI是否为自己对应的SCI。
  19. 根据权利要求12所述的方法，其特征在于，所述SCI包括识别部和指示部，所述方法还包括：
    根据所述识别部识别所述SCI承载所述推荐/非推荐资源的信息；
    根据所述指示部获取所述推荐/非推荐资源的信息。
  20. 根据权利要求19所述的方法，其特征在于，所述SCI采用1-A格式，所述SCI包括第一阶段SCI，所述识别部包括第一阶段SCI中的频域资源分配对应的比特域。
  21. 根据权利要求20所述的方法，其特征在于，所述SCI还包括第二阶段SCI,所述指示部包括第一阶段SCI中的时域资源分配对应的比特域以及第二阶段SCI中的Beta偏移指示器、DMRS端口数量、调制和编码方案对应的比特域中的一个或多个。
  22. 根据权利要求12所述的方法，其特征在于，所述推荐/非推荐资源的信息由HARQ进程ID、新数据指示器、冗余版本、源标识、目的标识、区域标识、通信区域要求对应的比特域中的一个或多个承载。
  23. 一种侧链协调资源指示装置，其特征在于，所述装置包括：
    资源协调模块，用于接收请求UE发送的资源协调请求，并根据所述资源协调请求确定推荐/非推荐资源；
    资源指示模块，用于将所述推荐/非推荐资源的信息发送至所述请求UE，以使所述请求UE获取所述推荐/非推荐资源并确定向其他UE发送数据的资源；
    其中，所述推荐/非推荐资源的信息通过SCI承载。
  24. 一种侧链协调资源指示装置，其特征在于，所述装置包括：
    协调请求模块，用于当需要向其他UE传输数据时，生成资源协调请求，并将所述资源协调请求发送至协调UE，以使所述协调UE根据所述资源协调请求确定推荐/非推荐资源；
    协调资源获取模块，用于接收所述协调UE返回的推荐/非推荐资源的信息，并获取所述推荐/非推荐资源；
    数据发送模块，用于根据所述推荐/非推荐资源确定向其他UE发送数据的资源；
    其中，所述推荐/非推荐资源的信息通过SCI承载。
  25. 一种存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被处理器运行时执行权利要求1至11任一项所述方法，或权利要求12至22任一项所述方法的步骤。
  26. 一种终端，包括如权利要求23或24所述的装置，或者，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计 算机程序，其特征在于，所述处理器运行所述计算机程序时执行权利要求1至11中任一项所述方法，或权利要求12至22任一项所述方法的步骤。
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