WO2019201165A1 - 实现边链路资源配置的方法、装置及系统 - Google Patents

实现边链路资源配置的方法、装置及系统 Download PDF

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Publication number
WO2019201165A1
WO2019201165A1 PCT/CN2019/082415 CN2019082415W WO2019201165A1 WO 2019201165 A1 WO2019201165 A1 WO 2019201165A1 CN 2019082415 W CN2019082415 W CN 2019082415W WO 2019201165 A1 WO2019201165 A1 WO 2019201165A1
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Prior art keywords
symbol
link
symbols
edge
resource
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PCT/CN2019/082415
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English (en)
French (fr)
Inventor
杨瑾
邢卫民
卢有雄
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ZTE Corp
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ZTE Corp
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Priority to KR1020207033436A priority Critical patent/KR102466107B1/ko
Priority to EP19788752.4A priority patent/EP3783960B1/en
Priority to JP2020557930A priority patent/JP7199449B2/ja
Priority to CA3097606A priority patent/CA3097606C/en
Priority to US17/048,226 priority patent/US11601936B2/en
Publication of WO2019201165A1 publication Critical patent/WO2019201165A1/zh
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signalling, i.e. of overhead other than pilot signals
    • H04L5/0057Physical resource allocation for CQI
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signalling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094Indication of how sub-channels of the path are allocated
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/25Control channels or signalling for resource management between terminals via a wireless link, e.g. sidelink
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/16Interfaces between hierarchically similar devices
    • H04W92/18Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the present application relates to, but is not limited to, a next-generation communication technology, and more particularly to a method, device, and system for implementing edge link resource configuration.
  • the fifth generation mobile communication (5G, 5th Generation) technology has become the trend of future network development.
  • FIG. 1 is a schematic diagram of a Sidelink communication structure in the related art. As shown in FIG. 1 , the mode of direct communication between the UE and the UE is significantly different from the traditional cellular.
  • Sidelink communication not only saves the wireless spectrum resources, but also reduces the data transmission pressure of the core network, can reduce the system resource occupation, and increase the spectrum efficiency of the cellular communication system. Reduce the power consumption of the terminal transmission and save network operation costs to a large extent.
  • the present application provides a method, device and system for implementing edge link resource configuration, which can provide guarantee for implementing Sidelink communication in a next generation communication system.
  • the present application provides a method for implementing edge link resource configuration, including:
  • the network side indicates a time domain resource of an edge link resource pool for side link communication, wherein the edge link resource pool includes at least one time slot in the time domain, and at least one time domain symbol in the time slot Used for side link communication;
  • the time domain resource of the edge link resource pool is a side link communication dedicated resource, or is a side link communication and a cellular link shared resource.
  • the present application further provides a computer readable storage medium storing computer executable instructions for performing the method for implementing edge link resource configuration described in the foregoing embodiments.
  • the present application further provides an apparatus for implementing resource configuration, including a processor, a memory, and a computer program stored on the processor and operable on the processor, and implementing the implementation of the side link resource configuration described in the foregoing embodiment when the computer program is running Methods.
  • the application further provides a method for implementing edge link resource configuration, including:
  • the user equipment UE determines the time domain resource of the edge link resource pool used for the edge link communication according to the configuration indication information of the edge link resource pool;
  • the edge link resource pool includes at least one time slot in the time domain, and at least one time domain symbol in the time slot is used for edge link communication; wherein the time domain resource of the edge link resource pool is edge Link communication dedicated resources, or sharing resources with cellular links for side link communication.
  • the present application also provides a computer readable storage medium storing computer executable instructions for performing the method for implementing edge link resource configuration described in any of the above embodiments.
  • the present application further provides an apparatus for implementing resource configuration, including a processor, a memory, and a computer program stored on the memory and operable on the processor, the computer program running to implement the implementation side chain described in any of the above embodiments.
  • the method of road resource configuration including a processor, a memory, and a computer program stored on the memory and operable on the processor, the computer program running to implement the implementation side chain described in any of the above embodiments.
  • the present application further provides an apparatus for implementing edge link resource configuration, including a configuration module and a sending module, where
  • a configuration module configured to configure a time domain resource of an edge link resource pool for side link communication, wherein the edge link resource pool includes at least one time slot in the time domain, at least one of the time slots The time domain symbol is used for edge link communication; the time domain resource of the edge link resource pool is a side link communication dedicated resource, or the edge link communication and the cellular link share resources;
  • the sending module is configured to send configuration indication information of the time domain resource of the edge link resource pool of the edge link communication to the user equipment.
  • the present application further provides another apparatus for implementing edge link resource configuration, including: a receiving module and a processing module; wherein
  • a receiving module configured to receive resource configuration indication information of a time domain resource of an edge link resource pool used for edge link communication, where the edge link resource pool includes at least one time slot in the time domain, in the time slot At least one time domain symbol is used for edge link communication; wherein the time domain resource of the edge link resource pool is a side link communication dedicated resource, or the edge link communication shares resources with the cellular link;
  • the processing module is configured to determine a time domain resource for the side link Sidelink communication according to the resource configuration indication information.
  • the present application further provides a system for implementing resource configuration, including: a network side and a user equipment, where the network side includes the foregoing apparatus for implementing edge link resource configuration; and the user equipment includes the foregoing another implementation side link resource. Configured device.
  • FIG. 1 is a schematic diagram of a Sidelink communication structure in the related art
  • FIG. 2 is a schematic diagram showing the display of time slots in a 5G system
  • FIG. 3 is a schematic diagram of an embodiment of a symbol type configuration in a time slot in a 5G system
  • FIG. 4 is a schematic diagram of an embodiment of implementing a time slot indication in an edge link resource pool configuration according to the present application
  • 5(a) is a schematic diagram of a first embodiment of indicating the meaning of the number n of link symbols in a slot in the method for indicating the edge link resource pool configuration of the present application;
  • FIG. 5(b) is a schematic diagram of a second embodiment of indicating the meaning of the number n of link symbols in a slot in the method for indicating the edge link resource pool configuration of the present application;
  • FIG. 5(c) is a schematic diagram of a third embodiment of indicating the meaning of the number n of link symbols in a slot in the method for indicating the edge link resource pool configuration of the present application;
  • FIG. 5(d) is a schematic diagram showing a fourth embodiment of the meaning of the number n of link symbols in a slot in the method for indicating the edge link resource pool configuration of the present application;
  • FIG. 5(e) is a schematic diagram of a fifth embodiment of the meaning of the number n of link symbols in a slot in the method for indicating the edge link resource pool configuration of the present application;
  • FIG. 6(a) is a schematic diagram of a first embodiment of indicating a Sidelink symbol by using SFI in the edge link resource pool configuration indication method of the present application;
  • 6(b) is a schematic diagram of a second embodiment of indicating a Sidelink symbol by using SFI in the edge link resource pool configuration indication method of the present application;
  • 6(c) is a schematic diagram of a third embodiment of indicating a Sidelink symbol by using SFI in the edge link resource pool configuration indication method of the present application;
  • FIG. 7 is a schematic diagram of a fourth embodiment of indicating a Sidelink symbol by using SFI in the edge link resource pool configuration indication method of the present application;
  • FIG. 8(a) is a schematic diagram of a first embodiment of the indication meaning of the number of side link symbols n and the start symbol position k in the edge link resource pool configuration indication method of the present application;
  • FIG. 8(b) is a schematic diagram of a second embodiment of the indication meaning of the number of side link symbols n and the start symbol position k in the edge link resource pool configuration indication method of the present application;
  • FIG. 9(a) is a schematic diagram of a first embodiment of implementing an edge link triggering indication information in an edge link resource pool configuration indication method according to the present application.
  • FIG. 9(b) is a schematic diagram of a second embodiment of implementing edge link triggering indication information in the edge link resource pool configuration indication method of the present application.
  • FIG. 10(a) is a schematic diagram of a third embodiment of implementing edge link trigger indication information in the edge link resource pool configuration indication method of the present application;
  • FIG. 10(b) is a schematic diagram of a fourth embodiment of implementing edge link triggering indication information in the edge link resource pool configuration indication method of the present application;
  • 11(a) is a schematic diagram of a fifth embodiment of implementing edge link trigger indication information in the edge link resource pool configuration indication method of the present application;
  • 11(b) is a schematic diagram of a sixth embodiment of implementing edge link trigger indication information in the edge link resource pool configuration indication method of the present application;
  • FIG. 12 is a schematic flowchart of a first embodiment of implementing resource configuration by system signaling in an edge link resource pool configuration indication method according to the present application;
  • FIG. 13 is a schematic diagram of a second embodiment of implementing resource configuration by using RRC signaling in the method for indicating an edge link resource pool configuration of the present application;
  • FIG. 14 is a schematic flowchart of a third embodiment of implementing resource configuration by using RRC signaling in the method for indicating an edge link resource pool configuration of the present application;
  • 15 is a schematic structural diagram of a device for implementing an edge link resource pool configuration according to the present application.
  • FIG. 16 is a schematic structural diagram of another apparatus for implementing an edge link resource pool configuration according to the present application.
  • Sidelink communication the UE uses Sidelink resources for information transmission.
  • Sidelink communication methods include but are not limited to: Device to Device (D2D) communication, vehicle to vehicle. (V2V, Vehicle to Vehicle) communication, etc.
  • D2D Device to Device
  • V2V Vehicle to Vehicle
  • the UE transmits a Sidelink signal using a resource in a Sidelink resource pool.
  • the edge link resource pool includes:
  • a physical side link control channel (PSCCH) resource pool is used to carry side link control information; a physical side link shared channel (PSSCH) resource pool is used to carry side link data.
  • Service information a physical side link broadcast channel (PSBCH) resource pool for carrying the Sidelink broadcast information; a physical side link discovery channel (PSDCH, Physical Sidelink Discovery Channel) resource pool for carrying the Sidelink discovery signal .
  • PSBCH physical side link broadcast channel
  • PSDCH Physical Sidelink Discovery Channel
  • the network side configures the Sidelink resource pool for the Sidelink UE according to the specific scenario requirements, or the system further pre-configures the Sidelink resource pool.
  • the UE uses the resources in the Sidelink resource pool to carry the Sidelink information.
  • any one or more of the above various types of Sidelink resource pools may be configured for the Sidelink UE.
  • the system may be a wireless communication network system, which may be considered to be determined by nodes of a higher level, and the Sidelink resource pool is a set of resources of a predefined configuration.
  • the transmitting UE When the UE performs the information exchange on the Sidelink, the transmitting UE sends the Sidelink Control Information (SCI, Sidelink Control Information) on the PSCCH resource, and indicates to the receiving UE, the PSSCH resource used by the transmitted Sidelink data information, and related control. Information, such as Modulation and Coding Scheme (MCS), power control indication, data retransmission indication, and the like. Further, the transmitting UE transmits the Sidelink data on the PSSCH resource indicated by the SCI. In addition, the UE may also send Sidelink broadcast information on the PSBCH resource and Sendlink discovery information on the PSDCH resource.
  • SCI Sidelink Control Information
  • Sidelink Control Information such as Modulation and Coding Scheme (MCS), power control indication, data retransmission indication, and the like.
  • MCS Modulation and Coding Scheme
  • the transmitting UE transmits the Sidelink data on the PSSCH resource indicated by the SCI.
  • the UE may also send Sidelink broadcast information on the PSBCH resource and Sendlink discovery information on
  • the present application provides a method for implementing resource configuration, including:
  • the network side indicates a time domain resource of an edge link resource pool for Sidelink communication, wherein the edge link resource pool includes at least one time slot in the time domain, and at least one time domain symbol in the time slot is used for the edge chain For road communication, the indicated time domain symbols are also referred to as side link symbols.
  • the time domain resource of the edge link resource pool is a dedicated resource for the edge link communication, or shared resources for the edge link communication and the cellular link.
  • the UE includes: determining, according to the configuration indication information of the edge link resource pool, the time domain resource of the edge link resource pool used for the side link Sidelink communication.
  • the edge link resource pool includes at least one time slot, and at least one time domain symbol in the time slot is used for edge link communication; wherein the time domain resource of the edge link resource pool is an edge link Communication-specific resources, or sharing resources with cellular links for side-link communication.
  • the entity on the network side may include, but is not limited to, an evolved Node B (eNB), a Relay Node (RN), a Multi-cell Coordination Entity (MCE), and a Gateway (Gateway, GW), Mobility Management Entity (MME), Evolved Universal Terrestrial Radio Access Network (EUTRAN) Operation Administration and Maintenance (OAM) Manager, and the like.
  • eNB evolved Node B
  • RN Relay Node
  • MCE Multi-cell Coordination Entity
  • GW Gateway
  • EUTRAN Evolved Universal Terrestrial Radio Access Network
  • OAM Operation Administration and Maintenance
  • the minimum granularity of time domain resources is a symbol, and the symbols can be classified into: Cyclic Prefix-OFDM Orthogonal Frequency Division Multiplex (CP-OFDM), or based on discrete Fourier transform OFDM symbol (DFT-S-OFDM, Discrete Fourier Transform Spread OFDM).
  • CP-OFDM Cyclic Prefix-OFDM Orthogonal Frequency Division Multiplex
  • DFT-S-OFDM discrete Fourier transform OFDM symbol
  • Discrete Fourier Transform Spread OFDM Discrete Fourier Transform Spread OFDM
  • a slot includes: 12 consecutive cyclic prefixes (extend Cyclic Prefix) or 14 regular cyclic prefix (normal CP) consecutive symbols, as shown in FIG. 2.
  • a mini-slot may be constructed from one or more consecutive symbols (less than or equal to 7 symbols).
  • the minimum granularity of resources is a sub-carrier.
  • each subcarrier includes a different frequency domain width, including any one or more of the following: 15 kHz, 30 kHz, 60 kHz, 120 kHz, 240kHz.
  • a frequency domain resource block (RB) can be formed by 12 consecutive subcarriers.
  • a symbol or a time slot or a mini-slot is a resource unit configured in a time domain resource in a 5G system
  • an RB is a resource unit configured in a frequency domain resource.
  • the configuration of the Sidelink resource is implemented in this basic unit.
  • the base station indicates the time domain and frequency domain resource configuration for cellular communication for the cellular link UE. It includes symbols and slot division in the time domain, and the type of each symbol; the frequency domain includes the division of subcarriers and RBs. Among them, in the time domain, there are three symbol types: a DL symbol, an UL symbol, and a flexible symbol (X symbol). Each symbol in each slot can be configured as any of the above three symbol types. As shown in the example shown in Figure 3, slot#n contains 5 DL symbols (as shown by the small shaded square in Figure 3), and 5 UL symbols (as shown in Figure 3, the shaded small squares) Show), and 4 Flexible symbols (shown in the blank squares in Figure 3).
  • the DL symbol is used to carry the downlink signal, that is, the signal sent from the base station to the UE; the UL symbol is used to carry the uplink signal, that is, the signal sent by the UE to the base station;
  • the Flexible symbol is a flexible reconfigurable symbol, that is, X
  • the symbol can be further reconfigured as a DL symbol or a UL symbol.
  • symbols that have been configured as DL symbol or UL symbol cannot change the symbol type.
  • the symbol type and location in each slot is indicated by the system through signaling configuration. Other configurations of the symbols in the slot are shown in Figure 3, and are not described here.
  • the Sidelink resource pool is a group of resources for carrying Sidelink information or signals, configured by the network side through physical layer and/or high layer signaling, or pre-configured by the system.
  • Each Sidelink resource pool may include one or more time domain resource units in the time domain, and the time domain resource unit includes any one or more of the following: symbol, slot, mini-slot; one or more in the frequency domain RB, the plurality of RBs included may be continuous or discontinuous.
  • the PSCCH resource pool, the PSSCH resource pool, the PSBCH resource pool, and the PSDCH resource pool are all ones of the Sidelink resource pool.
  • the configuration indication mode of the Sidelink resource pool in this application can be applied to any one or more of the foregoing resource pool configurations. .
  • the resources of the Sidelink resource pool share the time domain and frequency domain resources of the cellular communication, it needs to be configured based on the existing time domain and frequency domain resources in the cellular link. For example, the symbol and slot division indicated by the cellular link are based on the type of the symbol, and the time domain resources in the Sidelink resource pool are further configured.
  • a UE performing cellular communication in a cell can determine a symbol type of each symbol in each slot in the time domain by receiving corresponding configuration signaling of a network side node (e.g., a base station). Further, according to the scheduling indication of the base station, the UE receives or transmits a signal using a symbol of a corresponding symbol type.
  • a network side node e.g., a base station
  • the Union symbol resource pool should adopt the UL symbol and/or the Flexible symbol, and avoid Use DL symbol.
  • the UL symbol or the flexible symbol refers to a UL symbol or a flexible symbol configured by a base station for a cellular link in cellular communication.
  • the resource indicated for the Sidelink communication does not include at least the DL symbol in the time domain, that is, the Sidelink resource pool.
  • the symbols indicated in the figure contain the UL symbol and/or the Flexible symbol.
  • the time domain resource indicating the edge link resource pool used for the Sidelink communication includes:
  • the resource indication period T may be: a period in which the base station indicates the configuration of the common resource of the cell, indicating a time domain resource configuration period of the cellular communication cell; or the resource indication period T may also be a period of the Sidelink resource pool, and the configuration indicates the Sidelink resource.
  • the dedicated configuration period of the pool indicating the repeat interval of the indicated Sidelink resource pool configuration.
  • the Sidelink resource pool period may be different from the cell resource configuration period.
  • the above-mentioned indicated slot index may be the sequence number of multiple slots included in the Sidelink resource pool period.
  • N is an integer greater than or equal to 1.
  • the base station when indicating the Sidelink resource pool, indicates the slot index corresponding to one or more slots included in the Sidelink resource pool.
  • the slot corresponding to the indicated slot index indicates that in the time domain, some or all of the symbols in the slot can be used for Sidelink communication.
  • the indication of one or more slots included in the Sidelink resource pool may sequentially indicate the slot index of each slot configured in sequence; or, the bitmap may be indicated in a bitmap manner, where The length of the bitmap is the number N of slots included in the period T. For example, when the corresponding indication bit of the bitmap is "1", the corresponding bit "1" is defined as a valid indication, indicating that the corresponding slot is included in the Sidelink resource pool. Conversely, it is reasonable to define the corresponding indication bit to be “0”.
  • the UE determines, according to the configuration indication information of the edge link resource pool, the time domain resources of the edge link resource pool used for the edge link communication, including:
  • the UE determines, according to the slot index, at least one time domain symbol in the slot corresponding to the slot index in the resource indication period T.
  • Time domain resources of the edge link resource pool
  • the UE determines, according to the indicated slot bitmap of the Sidelink resource pool configuration, in the resource indication period. At least one time domain symbol in the time slot corresponding to the bit indicated as valid in the bitmap is a time domain resource of the edge link resource pool.
  • the UE determines, according to the predefined information, part or all of the symbols in the slot corresponding to the slot index as the Sidelink symbol in the resource indication period T.
  • the method for implementing resource configuration in this embodiment further includes:
  • edge link resource pool In the time slot included in the edge link resource pool, indicating an edge link symbol, that is, a time domain symbol used for edge link communication;
  • the edge link symbols in the time slots included in the edge link resource pool are predefined, including the number of predefined edge chain symbols and the location in the time slot.
  • the method further includes: determining, by the UE according to the indicated edge link symbols for the edge link communication, that the indicated edge link symbols are symbol positions where the time domain resources for Sidelink communication are located.
  • indicating the edge link symbol in the time slot included in the edge chain resource pool includes: indicating the number n of the edge link symbols in the time slot, where n is a positive integer.
  • consecutive n symbols are the edge link symbols, or starting from the last symbol of the time slot, the n consecutive symbols consecutively backward are the side links symbol;
  • the number n of side link symbols indicates: starting from the first symbol after the last downlink symbol in the time slot, consecutive n symbols are The side link symbol;
  • the number n of side link symbols indicates: starting from a symbol before the first uplink symbol in the time slot, n consecutive backwards consecutive n The symbol is the side link symbol;
  • the number n of side link symbols indicates that consecutive n symbols starting from the first flexible symbol in the time slot are edge link symbols; or The consecutive n symbols that are counted backward from the last flexible symbol are the side link symbols.
  • indicating the edge link symbol in the time slot included in the edge chain resource pool includes: indicating, according to the slot format, that the SFI indicates the edge link symbol.
  • determining, by the UE according to the SFI indication, the edge link symbols includes:
  • the UE determines that, in the slot corresponding to the SFI, the symbol indicated by the SFI as the preset symbol type is an edge link symbol; wherein the symbol of the preset symbol type includes: a downlink symbol or an uplink symbol or a flexible symbol.
  • indicating the edge link symbol based on the SFI includes:
  • the symbol indicated by the SFI as the preset symbol type is the edge link symbol;
  • the SFI is indicated as a first symbol type, and a symbol that is overlapped with a cellular link configuration as a second symbol type is used as the side link symbol.
  • determining, by the UE according to the SFI indication, the edge link symbols includes:
  • the UE In the slot corresponding to the SFI, the UE indicates the slot format indication SFI as the first symbol type, and the symbol that the cellular link is configured to overlap with the second symbol type as the side link symbol.
  • the first symbol type is a system-predefined specified symbol type in the SFI for indicating the edge link resource; the second symbol type is specified in the cellular link resource configuration indicated by the system predefined or the network side configuration indication. Symbol type.
  • the symbol of the fixed symbol type comprises: a downlink symbol or an uplink symbol or a flexible symbol; the first symbol type is the same symbol type as the second symbol type, or is a different symbol type.
  • indicating the edge link symbol in the time slot included in the edge chain resource pool includes: indicating the number n of the edge link symbols in the time slot, and the start symbol position #k.
  • the indication n of the number of side link symbols and the indication meaning of the start symbol position #k includes: consecutive n symbols starting from the start symbol position #k in the slot are the side chain Road symbol.
  • indicating the edge link symbol in the time slot included in the edge chain resource pool includes: indicating a number m of symbols in the time slot not used for edge link communication, where the number of symbols m is a non-negative integer .
  • the indication meaning of the number m of symbols includes:
  • the number m of symbols indicates that starting from the first symbol after the last downlink symbol in the time slot, consecutive m symbols are not used for the edge chain.
  • the number of symbols m indicates that starting from a symbol before the first uplink symbol in the time slot, the m consecutive symbols that are consecutively backward are not used.
  • the number m of symbols indicates that consecutive m symbols from the first flexible symbol in the time slot are not used for edge link communication; or, The last flexible symbol begins with a countdown of consecutive m symbols that are not used for side link communication.
  • the manner of indicating the symbol position for Sidelink communication in a slot includes but is not limited to:
  • SFI Slot Format Indication
  • the third way in a slot, indicates the number n of symbols used for Sidelink communication, and the starting symbol position k for Sidelink communication.
  • the fourth way, in a slot, indicates the number m of symbols that are not used for Sidelink communication.
  • the indication meaning of the number of side link symbols n may include the following:
  • consecutive n symbols are used for the side link symbol of the Sidelink communication, or from The last symbol in the slot starts, and the n consecutive symbols that are consecutively backward are used for the side link symbol of Sidelink communication, 1 ⁇ n ⁇ 14.
  • n the first symbol after the last DL symbol in the slot. Initially, consecutive n symbols are used for the side link symbols of the Sidelink communication.
  • the indication of n is: the first one before the first UL symbol in the slot.
  • the symbol begins with the reciprocal forward n consecutive symbols for the side link symbols of the Sidelink communication.
  • the indication of n is: starting from the first flexible symbol in the slot.
  • the symbol is used for the side link symbol of the Sidelink communication; or, the last n consecutive symbols from the last Flexible symbol are used for the side link symbol of the Sidelink communication.
  • the consecutive n symbols are edge link symbols, or starting from the last symbol in the time slot, and the n consecutive symbols consecutively backward are edge link symbols;
  • the number n of the side link symbols indicates: starting from the first symbol after the last DL symbol in the time slot, consecutive n symbols are edge links symbol;
  • the number n of the side link symbols indicates: starting from the first symbol before the first UL symbol in the time slot, and reciprocating the n consecutive symbols For the side link symbol;
  • the number n of the side link symbols indicates that the consecutive n symbols starting from the first flexible symbol Flexible symbol in the time slot are edge link symbols; or Starting from the last flexible symbol Flexible symbol, the consecutive n consecutive symbols are edge link symbols.
  • the number n of edge link symbols may be uniformly configured, that is, the value of the number n of symbols in each slot is the same;
  • the number n of edge link symbols may also be independently configured for each slot, that is, the value of the number of side link symbols n in different slots may be different.
  • the Sidelink symbol configuration adapted to the slot situation is implemented by different definitions of the number of side link symbols n, and the configuration of consecutive n symbols for Sidelink communication is achieved, so that the configuration of the Sidelink resource is flexible. Sex and adaptability.
  • the base station indicates multiple slots included in the Sidelink resource pool and indicates the symbols available for Sidelink communication in each slot, ie, the value indicating the number n of symbols.
  • the UE can determine the slot for the Sidelink communication from the received resource configuration information, and can also determine the specific available symbol position according to the number of symbols n available for the Sidelink communication in each slot indicated.
  • the meaning is indicated according to the number of symbols n in the above different cases, as shown in FIG. 5:
  • the small shaded hatched square indicates that the cellular link resource is configured as a DL symbol
  • the horizontally shaded small square indicates that the cellular link resource is configured as a UL symbol.
  • the blank small square indicates that the cellular link resource is configured as a flexible symbol
  • the snowflake dot shaded small square indicates the Sidelink symbol used for Sidelink communication.
  • the symbols are used for Sidelink communication as shown in Figure 5(b).
  • the symbols used for the Sidelink communication are as shown in FIG. 5(c), and are used for Sidelink communication according to the indication meaning of the number n of symbols in the third case.
  • the symbol is as shown in Fig. 5(d)
  • the symbol for the Sidelink communication is as shown in Fig. 5(e) according to the indication meaning of the number n of symbols in the fourth case.
  • an SFI list for indicating DL/X/UL symbol configuration in a slot is defined, which includes a plurality of SFI indexes, each SFI index corresponding to a fixed DL/X/UL configuration, indicating The symbol position of the three symbol types in a slot.
  • one of the symbol types can be defined to indicate the Sidelink symbol, which is called Sidelink SFI.
  • the symbol in the slot indicating the Sidelink communication in the Sidelink SFI is a symbol of a preset symbol type (such as DL symbol or UL symbol or Flexible symbol) as a Sidelink symbol.
  • the symbol of the first symbol type corresponding to the slot index number in the Sidelink SFI and the second symbol type in the same slot on the system cellular link are used as the Sidelink communication.
  • Sidelink symbol the symbol of the first symbol type corresponding to the slot index number in the Sidelink SFI and the second symbol type in the same slot on the system cellular link.
  • the first symbol type is a system-predefined specified symbol type in an SFI for indicating edge link resources; and the second symbol type is a cellular link resource indicated by a system predefined or network side configuration indication.
  • the specified symbol type in the configuration is a system-predefined specified symbol type in an SFI for indicating edge link resources; and the second symbol type is a cellular link resource indicated by a system predefined or network side configuration indication.
  • the specified symbol type in the configuration is a system-predefined specified symbol type in an SFI for indicating edge link resources
  • the second symbol type is a cellular link resource indicated by a system predefined or network side configuration indication.
  • the specified symbol type in the configuration.
  • the UE indicates the slot format indication SFI as a first symbol type, and a symbol that is overlapped with a cellular link configuration as a second symbol type, as the edge chain Road symbol.
  • the system may pre-define any of the symbol types in the Sidelink SFI indication for indicating the configured Sidelink symbol in the Sidelink resource configuration.
  • the example of the "Sidelink symbol" in the case of the Slotlink SFI in the resource allocation information indicated by the base station indicates that the symbol of the UL symbol is the Sidelink symbol in the slot symbol structure corresponding to the indicated Sidelink SFI index.
  • the base station indicates multiple slots included in the Sidelink resource pool and indicates the symbols available for Sidelink in each slot, indicating the Sidelink SFI index. Then, the UE can determine the slot included in the indicated Sidelink resource pool from the received resource configuration information, and can also determine a specific available symbol location according to the indicated Sidelink SFI index.
  • the Sidelink SFI index can be a unified configuration, that is, the same SFI index is used for each slot, and each slot can be independently configured, that is, the SFI indexes on different slots can be different.
  • the 4th, 5th, and 6th symbols in the slot with the SFI index of 42 are configured.
  • the Sidelink symbol, as shown in Figure 6(c), shows the small square of the snowflake dot.
  • the system pre-defines a certain symbol type of the Sidelink SFI as the first symbol type; on the other hand, the system pre-defined or configuration indication determines that a certain symbol type in the cellular link resource configuration is the second symbol type.
  • the symbol type may be a DL symbol or a UL symbol or a flexible symbol, and the first symbol type and the second symbol type may be the same symbol type or different symbol types.
  • any one or more of the following cases as shown in Table 2 are included:
  • the meaning of the second case in the second mode includes: on the Sidelink slot, when the first symbol type indicated in the Sidelink SFI has an overlapping symbol with the second symbol type indicated by the cellular link configuration in the same slot, Overlapping symbols are used as resources for Sidelink communications. Take the combination option 3-2 in the table as an example, that is, the first symbol type is Flexible symbol, and the second symbol type is UL symbol. At this time, it indicates that the Flexible symbol indicated by Sidelink SFI and the cellular link resource configuration on the same slot. When the UL symbols in the overlap, the overlapping symbols are Sidelink time domain resources.
  • the UE obtains the resource configuration in the cellular link from the base station, indicating that the first 10 symbols in slot#n are Flexible Symbol, and the last 4 symbols are UL symbol, and the first 6 symbols in slot#n+1 For Flexible symbol, the next 8 symbols are UL symbol.
  • symbols in which the first symbol type overlaps with the second symbol type include symbol #10, #11; in slot #n+1, the overlapping symbols include symbol #6, #7, #8, #9, #10 and #11, these overlapping symbols are the resources used for Sidelink communication.
  • the horizontally-lined small square indicates the Uplink symbol indicated by the cellular link configuration
  • the small square of the snowflake dot indicates the Sidelink symbol
  • the small white square indicates the Flexible symbol indicated by the cellular link configuration.
  • the embodiment of the present invention provides a more flexible Sidelink time domain symbol configuration indication effect by predefining a combination of different first symbol types and second symbol types.
  • the SFI index in the NR system is used to indicate the symbol position actually used for the Sidelink communication in the slot contained in the Sidelink resource pool, which is advantageous for reducing the indication.
  • Overhead on the other hand, combined with the resource configuration of the existing cellular link, also achieves a more flexible indication effect.
  • the SFI is used to indicate the configuration of the Sidelink resource in the first case of the second mode or the second case in the second mode, and the cell is indicated in the cellular communication.
  • the SFI indication of the link UE has different meanings.
  • the manner of determining the Sidelink symbol based on the SFI indication in the second manner further includes any one of the following or a combination of any of the following:
  • the Sidelink symbol indicated by the SFI is indicated by the network side as the base station indicates the DL symbol of the cellular link, the Sidelink symbol indicated by the SFI is invalid;
  • the Sidelink symbol indicated by the SFI is indicated by the network side as the base station as the UL symbol of the cellular link, the Sidelink symbol indicated by the SFI is invalid;
  • the Sidelink symbol indicated by the SFI is indicated by the network side as the base station as the UL symbol of the cellular link, and the UL symbol schedules the UE to perform cellular uplink transmission, the Sidelink symbol indicated by the SFI is invalid;
  • the Sidelink symbol indicated by the SFI can be used for Sidelink communication when the SFI indicates that the Sidelink symbol is indicated by the network side as the base station as the UL symbol of the cellular link, and when the UL symbol does not schedule the UE for cellular link uplink transmission.
  • the method further includes:
  • the UE determines that the side link symbol indicated by the SFI is invalid
  • the method further includes:
  • the UE determines that the side link symbol indicated by the SFI is invalid
  • the method further includes:
  • the UE determines that the side link symbol indicated by the SFI is invalid
  • the method further includes:
  • the UE determines that the side link symbols indicated by the SFI are available for side link communication.
  • the third way in a slot, indicates the number n of side link symbols used for Sidelink communication, and the starting symbol position k for Sidelink communication.
  • the UE determining the side link symbol includes: obtaining, in the configuration indication information of the edge chain resource pool, the number n of the edge link symbols in the time slot, and the start symbol position k The indication; the UE determines the consecutive n symbols starting from the symbol k in the time slot as a Sidelink symbol.
  • the indication meanings of the number of side link symbols n and the starting symbol position #k may include:
  • the consecutive n symbols starting from the symbol #k in the slot corresponding to the slot index number are used for the side link symbols of the Sidelink communication, that is, the consecutive n symbols indicating the symbol #k in the slot are in the Sidelink resource pool. symbol.
  • #k is the sequential number of the symbols of the start symbol in a slot.
  • the base station indicates a plurality of slots included in the Sidelink resource pool, and indicates the symbols available for Sidelink communication in each slot, that is, the value indicating the number of symbols n and the value of the start symbol position k.
  • the slot included in the indicated Sidelink resource pool can be determined, and the symbol position available in the slot is determined according to the indicated number of symbols n and the starting symbol position k.
  • symbol #5 means starting from symbol #5.
  • symbol #5, symbol #6, symbol #7, and symbol #8 are Sidelink symbols, as shown in Figure 8 ( a)
  • the fourth way, in a slot, indicates the number m of symbols that are not used for Sidelink communication.
  • the meaning of the indication of the number m of symbols may include the following:
  • the indication of m is: the first symbol after the last DL symbol in the slot. Initially, consecutive m symbols are not used for Sidelink communication, ie the remaining symbols can be used for Sidelink communication in addition to the DL symbol and the indicated m symbols.
  • the indication of m is: the first one before the first UL symbol in the slot.
  • the m consecutive symbols that are consecutively backward are not used for Sidelink communication, ie the remaining symbols can be used for Sidelink communication except for the UL symbol and the indicated m symbols.
  • the indication of m is: starting from the first flexible symbol in the slot.
  • the symbols are not used for Sidelink communication, ie the remaining Flexible symbols can be used for Sidelink communication in addition to the indicated m symbols; or, consecutively m consecutive symbols from the last Flexible symbol are not used for Sidelink communication, ie In addition to the indicated m symbols, the remaining Flexible symbols can be used for Sidelink communication.
  • the number of symbols m may be uniformly configured, that is, the values for the number m of symbols in each slot are the same.
  • the number of symbols m may also be independently configured for each slot, that is, the values of the number of symbols m in different slots may be different.
  • Determining, by the UE side, the edge link symbol includes: obtaining, in the configuration indication information of the edge chain resource pool, an indication of a number m of symbols in the time slot not used for edge link communication; The number of symbols m determines the side link symbols. Wherein, the number m of symbols is a non-negative integer.
  • the configuration of the Sidelink symbol adapted to the slot situation is realized by different definitions of the number of symbols m, and the configuration of the continuous m symbols is not used for the Sidelink communication, so that the configuration of the Sidelink resource has certain flexibility and adaptability. Sex.
  • the method for implementing resource configuration in the application further includes:
  • the network side indicates trigger indication information, which is used to indicate that the time domain resource of the configured edge link resource pool is triggered or not triggered.
  • the UE determines, according to the trigger indication information, a time domain resource that triggers or does not trigger the configured edge link resource pool.
  • the network side indicates that all or part of resources in the edge link resource pool are triggered or not triggered by triggering indication information.
  • the meaning that the trigger information can indicate includes any one or any combination of the following:
  • Trigger SFI Indicates that Sidelink triggers SFI (Trigger SFI), and the symbol corresponding to the symbol of the third symbol type indicated in the edge link Trigger SFI overlaps with the symbol included in the Sidelink resource pool, indicating that the Sidelink resource is available or unavailable.
  • the third symbol type is predefined by the system or configured by the network side, and the third symbol type is any one of DL symbol or UL symbol or /Flexible symbol.
  • the method further includes: when the network side does not send the trigger indication information, or the trigger indication information indicates that the corresponding resource is unavailable, indicating that the corresponding edge link resource pool Resources cannot be used to carry side link signals.
  • the UE determines that the time domain resource that triggers or does not trigger the configured edge link resource pool includes any one or any combination of the following:
  • the UE determines, according to the trigger indication information, that the resources in the Sidelink resource pool are available or unavailable within a certain time range, where the value of the time range is predefined by the system or indicated by the network side;
  • the UE determines, according to the trigger indication information, that resources in the Sidelink resource pool are available or unavailable after a certain time interval, where the value of the time interval is predefined by the system or indicated by the network side;
  • the UE determines, according to the trigger indication information, that the symbol corresponding to the symbol corresponding to the third symbol type indicated by the Sidelink trigger SFI and the symbol overlapped by the symbol included in the Sidelink resource pool are available or unavailable Sidelink resources; wherein, the third The symbol type is predefined by the system or configured on the network side, and the third symbol type is any one of DL symbol or uplink symbol UL symbol or Flexible symbol.
  • the resources in the Sidelink resource pool configuration within the t slots are valid, and can be used for bearer of the Sidelink signal.
  • the predefined Sidelink resource pool configuration of the system is as shown in FIG. 9(a), and the snowflake dot shades the Sidelink resource that can be used for Sidelink communication in the Sidelink resource pool configuration; whether the resources in the Sidelink resource pool are indeed Available, depending on the indication of the trigger information.
  • the resources in the Sidelink resource pool in the t slots starting from slot#n+1 can be used for sending or The Sidelink signal is received as shown by the shaded vertical line in Figure 9(b).
  • the resources in the corresponding Sidelink resource pool may not be used to carry the Sidelink signal.
  • the system pre-defined the time interval as t slots, the t slots after the UE receives the trigger indication information start, and the resources in the Sidelink resource pool configuration are valid, and can be used for bearer of the Sidelink signal.
  • the predefined Sidelink resource pool configuration of the system is as shown in FIG. 10(a), and the snowflake dots indicate the Sidelink resources included in the configured Sidelink resource pool; whether the resources in the Sidelink resource pool are actually available, Depends on the indication of the trigger indication information.
  • the UE when the UE receives the trigger indication information in slot#n, indicating that it is available, the resources in the Sidelink resource pool after slot#n+t are available, that is, it can be used to send or receive a Sidelink signal, such as The hatched portion of the vertical line in Fig. 10(b) is shown.
  • the system pre-defines the third symbol type as Flexible symbol
  • the symbol of the overlapping portion of the flexible symbol indicated in the Sidelink trigger SFI and the symbol included in the Sidelink resource pool configuration is represented as a trigger indication.
  • the predefined Sidelink resource pool configuration of the system is as shown in FIG. 11(a), and the snowflake points are shaded to represent the Sidelink resources of the Sidelink resource pool configuration for Sidelink communication, including the six symbols at the end of the slot. Whether the resources in the Sidelink resource pool are actually available depends on the indication of the trigger indication.
  • the Flexible symbol is three symbols: symbol #10, symbol #11, and symbol #12. It can be seen that the overlapping symbol of the third symbol type indicated in the Trigger SFI and the symbol in the Sidelink resource pool in this embodiment is symbol #10, symbol #11, symbol #12, that is, the three symbols are actually available Sidelink resources, such as The vertical hatched portion of Figure 11(b) is shown, while other symbols included in the Sidelink resource pool are not available for Sidelink signaling.
  • the method for implementing resource configuration in the application further includes:
  • the network side indicates resource configuration information of the time domain resource of the edge link resource pool by signaling.
  • the UE obtains resource configuration information of the time domain resource of the edge link resource pool according to the received signaling.
  • the signaling may include but is not limited to one or any combination of the following:
  • DCI Downlink Control Information
  • SCI Sidelink Control Indication
  • the cell common configuration information includes but is not limited to one or any combination of the following:
  • SI System Information
  • MIB Main System Message Block
  • SIB System information block
  • OSI OSI, Other System Information
  • RMSI Remain System Information
  • the dedicated high layer signaling may include, but is not limited to, dedicated radio resource control (RRC) signaling.
  • RRC dedicated radio resource control
  • the manner of carrying the indication information of the resources for the Sidelink communication may use any one of the above system signaling or a combination of any multiple.
  • the UE may determine the type of signaling to be received according to the system pre-defined or network-side configuration, and obtain the resource configuration information of the corresponding Sidelink resource from the UE.
  • the resource configuration information includes any one or more of the following combinations:
  • An edge link resource indicating an edge link symbol in the edge link resource pool indicates a preset symbol type in the SFI
  • An edge link resource indicating an edge link symbol in the edge link resource pool indicating a first symbol type in the SFI
  • a Radio Network Tempory Identity for indicating edge link resource configuration.
  • the resource configuration information is carried in the cell common configuration signaling, and the UE obtains resource configuration information of the resource used for the Sidelink communication according to the received cell common configuration signaling.
  • the base station can perform unified resource configuration for the intra-cell UE through the cell common configuration signaling, including the time domain slot and the symbol type in the slot, and the indication of the frequency domain RB division. Since the Sidelink resource pool can be shared by multiple UEs performing Sidelink communication in the cell, the resources used for the Sidelink communication can carry the resource configuration information by using the cell common configuration signaling.
  • the Sidelink obtains resource configuration information of resources for Sidelink communication according to the received cell common configuration signaling, and then performs reception and/or transmission of the Sidelink signal according to the configured resources.
  • the UE obtains resource configuration information of the resources for the Sidelink communication from the common configuration signaling according to the predefined rules of the system, and performs corresponding reception according to the specific signaling bearer manner.
  • the resource configuration information of the resource for the Sidelink communication is carried by the base station through the system message (SI), and then includes:
  • Step 1200 The UE periodically receives the SI.
  • Step 1201 The UE obtains indication information of resources for Sidelink communication from the received SI, such as: a Sidelink slot index list, a Sidelink SFI, a Sidelink RBs, and the like.
  • Step 1202 The UE determines resources for Sidelink communication according to the meaning of the indication information.
  • it also includes:
  • Step 1203 The UE sends a Sidelink signal on the indicated resource for Sidelink communication, and/or receives a Sidelink signal of other UEs.
  • the resource configuration information is carried in the dedicated high-layer signaling, and the UE obtains the resource configuration information of the resource for the Sidelink communication according to the received dedicated high-level signaling.
  • the network side such as the base station, can configure the Sidelink resource pool of each UE more flexibly, which is beneficial to improving resource allocation efficiency, thereby improving the fineness of resource management control on the network side.
  • the UE After establishing a connection with the base station, the UE receives the dedicated RRC signaling from the base station, and obtains resource configuration information of the resources for the Sidelink communication.
  • one or more UEs may be grouped into one group according to the attributes of the UE, and the RRC signaling is configured to be the same for the Sidelink UEs belonging to the same group.
  • the resources used for Sidelink communication are the same Sidelink resource pool.
  • the UE receives the RRC signaling from the base station, where the RRC signaling is the Sidelink dedicated configuration signaling, and carries the configuration information such as the Sidelink resource pool, the Sidelink signal mode, the Sidelink transmission and/or the receiving parameters.
  • the indication in the RRC signaling includes: a Sidelink resource pool period, and a slot index configured as a Sidelink time domain resource in the Sidelink resource pool period, including one or more slots.
  • the RRC signaling further indicates that the symbol position of the Sidelink can be used in each slot configured as a Sidelink resource.
  • the UE receives the RRC signaling, and the following configuration information is obtained by parsing: the Sidelink resource pool period is 80 slots; the slot index list included in the Sidelink resource pool is [0, 5, 10, 15, 20, 25 , 30]; the symbolic indication for Sidelink communication in each Sidelink slot includes: 4 symbols starting at the beginning of each slot for Sidelink communication. Then, the resource configuration information of the time domain resource used by the UE for Sidelink communication is as shown in FIG.
  • the resource configuration information is carried in the DCI signaling as an example. Accordingly, the UE obtains resource configuration information of the resource used for the Sidelink communication according to the received DCI signaling. Specifically, after the UE establishes a connection with the base station, the base station performs a Sidelink communication configuration (RNTI, Radio Network Temporary Identifier), which is called a side link RNTI (SL-RNTI, Sidelink RNTI). Thus, with the SL-RNTI as the identifier, the UE receives the DCI signaling related to the Sidelink control and obtains indication information related to the resources for the Sidelink communication.
  • RNTI Radio Network Temporary Identifier
  • the UE receives the RRC configuration signaling from the base station, and indicates the configuration of the Sidelink resource pool.
  • the UE also needs to receive the Sidelink resource trigger signaling according to the SL-RNTI, and is used to trigger the resource in the Sidelink resource pool configured in the RRC signaling. Is it really available? It is assumed that the trigger signaling indicates whether the Sidelink resource of the current slot is triggered. For example, in the DCI identified by the SL-RNTI, 1 bit is used to indicate whether the resources in the Sidelink resource pool in the current slot are available, and when the indication bit is “ When 1" indicates that the trigger indication is activated, the resources in the resource pool are valid resources and can be used for the Sidelink signal bearer. As shown in FIG. 14, the specific includes:
  • Step 1400 The UE receives the RRC signaling and obtains a Sidelink resource pool configuration therefrom.
  • Step 1401 In this embodiment, it is assumed that the UE receives the DCI indication from the base station in slot #n.
  • Step 1402 In this embodiment, it is assumed that the trigger indication bit bit is "1", indicating that the Sidelink resource is available on the current slot.
  • Step 1403 The UE receives the Sidelink signal on the corresponding Sidelink resource.
  • Step 1404 The UE receives the DCI indication from the base station in slot #n+1, and the trigger indication bit bit is “0”, indicating that the Sidelink resource is unavailable on the current slot.
  • Step 1405 The UE does not receive the Sidelink signal on slot #n+1.
  • the resource configuration information is carried in the Sidelink broadcast message as an example.
  • the UE obtains resource configuration information of the resource used for the Sidelink communication according to the received Sidelink broadcast message.
  • the Sidelink broadcast message is sent by a Sidelink node, including but not limited to: a Sidelink UE, a Sidelink relay node, and the like.
  • the resource configuration information for the indication mode of the Sidelink resource pool configuration which is used in any one or any combination of the foregoing, may be included to indicate the related Sidelink resource pool configuration to the surrounding Sidelink UE.
  • the UE cannot obtain the Sidelink resource pool configuration from the network side.
  • the Sidelink can be shared. Resource pool configuration information to achieve effective Sidelink resource configuration effects. For example, it is assumed that the UE obtains resource configuration information of resources for Sidelink communication, that is, Sidelink resource pool related configuration information, from the received Sidelink Control Indication (SCI) message. Among them, the SCI is sent by the Sidelink node.
  • SCI Sidelink Control Indication
  • the SCI message is point-to-point unicast information, for example, sent from the SCI sender UE to the corresponding receiver UE, and the SCI may include any one or any combination of the foregoing.
  • the resource configuration information of the indication mode configured in the Sidelink resource pool is used to indicate the configuration of the Sidelink resource pool associated with the UE at the receiving end.
  • the SCI message is used to instruct the Sidelink resource pool to configure related information, thereby achieving a more flexible resource allocation effect.
  • a signaling bearer manner for carrying resource configuration information indicating that more than one time slot is a time domain resource for Sidelink communication is carried in system signaling, and
  • the manner of indicating the resource configuration information of the time domain resource used for the Sidelink communication may be any one of the foregoing signaling bearers, or any combination of the foregoing.
  • the system message signaling bearer is used, and the combination is used to indicate the symbol configuration in the indicated Sidelink slot; for example, the indicated Sidelink SFI index can be RRC signaling bearer, etc., and other situations can be similarly combined. Let me repeat.
  • the method for implementing resource configuration in the application further includes:
  • the network side indicates the frequency domain resources included in the Sidelink resource pool, thereby realizing the indication of the configuration of the Sidelink resource pool in the next generation communication system such as the 5G system.
  • the present application provides a computer readable storage medium storing computer executable instructions for performing the method of implementing resource configuration according to any of the embodiments.
  • the present application provides an apparatus for implementing resource configuration, including a processor, a memory, and a computer program executable on the processor and stored on the processor, including the steps of the method for implementing resource configuration according to any one of the embodiments. .
  • FIG. 15 is a schematic structural diagram of a device for implementing edge link resource configuration according to the present application, as shown in FIG. 15 , including: a configuration module, a sending module, where
  • a configuration module configured to configure a time domain resource of an edge link resource pool for edge link communication, where the edge link resource pool includes at least one time slot in the time domain, at least one of the time slots The time slot symbol is used for edge link communication;
  • the time domain resource of the edge link resource pool is a dedicated resource for the edge link communication, or the edge link communication and the cellular link share resources;
  • a sending module configured to send configuration indication information of the time domain resource of the edge link resource pool used for the edge link communication to the user equipment.
  • the configuration module is specifically configured to:
  • a time slot indicating a time slot in the resource indication period wherein at least one time domain symbol in the time slot corresponding to the bit indicated as valid in the bitmap is a time domain resource of the edge link resource pool.
  • the configuration module is further configured to: indicate, in a time slot included in the edge link resource pool, an edge link symbol used for edge link communication;
  • the edge link symbols in the time slots included in the edge link resource pool are predefined, including the number of predefined edge link symbols and the location in the time slot.
  • indicating the edge link symbols in the time slots included in the edge chain resource pool includes:
  • n is a positive integer
  • the configuration module is further configured to: indicate trigger indication information, used to indicate that the time domain resource of the configured edge link resource pool is triggered or not triggered.
  • the sending module is specifically configured to: send, by using signaling, resource configuration indication information indicating a time domain resource of the edge link resource pool.
  • FIG. 16 is a schematic structural diagram of another apparatus for implementing edge link resource configuration according to the present application. As shown in FIG. 16, the method includes: a receiving module and a processing module;
  • a receiving module configured to receive resource configuration indication information of a time domain resource of an edge link resource pool used for edge link communication, where the edge link resource pool includes at least one time slot in the time domain, where the time slot is in the time slot At least one time slot symbol is used for side link communication; wherein the time domain resource of the edge link resource pool is a side link communication dedicated resource, or the edge link communication shares resources with the cellular link;
  • a processing module configured to determine, according to the resource configuration indication information, a time domain resource used for side link Sidelink communication.
  • the time domain resource indicating the edge link resource pool includes: indicating a slot index number in a resource indication period, where at least one time domain symbol in the slot corresponding to the indicated slot index number is selected a time domain resource of the edge link resource pool; or a bitmap indicating a time slot within a resource indication period, wherein at least one time domain symbol in the time slot corresponding to the bit indicated as valid in the bitmap a time domain resource of the edge link resource pool; correspondingly,
  • the processing module is configured to determine, according to the slot index number indicated in the resource configuration indication information, that at least one time domain symbol in the slot corresponding to the slot index number is the edge in the resource indication period Time domain resources of the link resource pool;
  • processing module is further configured to:
  • edge link symbol used for edge link communication in a time slot included in the edge link resource pool Determining, according to the resource configuration indication information, an edge link symbol used for edge link communication in a time slot included in the edge link resource pool; or, according to a predefined time when the edge link resource pool is included
  • the edge link symbols in the slot determine the number of predefined edge link symbols and their position in the time slot.
  • the determining the edge link symbol included in the edge link resource pool includes:
  • the number m of symbols in the time slot that are not used for side link communication is determined, wherein the number m of symbols is a non-negative integer.
  • processing module is further configured to:
  • the receiving module is specifically configured to:
  • the present application further provides a system for implementing resource configuration, including: a network side and a user equipment, where the network side includes the apparatus described in any one of the foregoing FIG. 15; the user equipment includes any one of the foregoing FIG. The device described.
  • the technical solution of the present application includes: the network side indicates that at least one time slot is a time domain resource for Sidelink communication. Through the present application, it provides a guarantee for implementing Sidelink communication in a next generation communication system.

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Abstract

本文公开了一种实现边链路资源配置的方法及装置,该方法包括:网络侧指示用于边链路(Sidelink)通信的边链路资源池的时域资源,其中,所述边链路资源池在时域上包括至少一个时隙,所述时隙包括至少一个时域符号;所述边链路资源池的时域资源为边链路通信专用资源,或者为边链路通信与蜂窝链路共享资源。本文还公开了一种实现资源配置的系统及存储介质。

Description

实现边链路资源配置的方法、装置及系统
本申请要求在2018年04月19日提交中国专利局、申请号为201810354828.5的中国专利申请的优先权,该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及但不限于下一代通信技术,尤指一种实现边链路资源配置的方法、装置及系统。
背景技术
随着无线通信技术的发展和用户对通信需求的日益增加,为了满足更高、更快和更新的通信需要,第五代移动通信(5G,5th Generation)技术已成为未来网络发展的趋势。
在边链路(Sidelink)通信系统中,用户设备(UE)之间有业务需要传输时,UE之间的业务数据不经过网络侧,即不经过UE与基站之间的蜂窝链路的转发,而是直接由数据源UE通过Sidelink传输给目标UE,图1为相关技术中Sidelink通信结构的示意图,如图1所示,这种UE与UE之间直接进行通信的模式具有明显区别于传统蜂窝系统通信模式的特征,对于能够应用Sidelink通信的近距离通信用户来说,Sidelink通信不但节省了无线频谱资源,而且降低了核心网的数据传输压力,能够减少系统资源占用,增加蜂窝通信系统频谱效率,降低终端发射功耗,并在很大程度上节省网络运营成本。
在5G通信系统中,由于采用了更精细的资源粒度,以及更灵活的调度指示方式,相关技术中Sidelink通信中的资源定义及管理方式不能适用于5G系统,从而导致5G系统中UE之间无法进行Sidelink通信。
发明内容
本申请提供一种实现边链路资源配置的方法、装置及系统,能够为在下一代通信系统中实现Sidelink通信提供保障。
本申请提供了一种实现边链路资源配置的方法,包括:
网络侧指示用于边链路通信的边链路资源池的时域资源,其中,所述边链路资源池在时域上包括至少一个时隙,所述时隙中的至少一个时域符号用于边链路通信;
所述边链路资源池的时域资源为边链路通信专用资源,或者为边链路通信与蜂窝链路共享资源。
本申请还提供了一种计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令用于执行上述实施例所述的实现边链路资源配置的方法。
本申请又提供了一种实现资源配置的装置,包括处理器、存储器以及存储在存储器上可在处理器上运行的计算机程序该计算机程序运行时实现上述实施例所述的实现边链路资源配置的方法。
本申请又提供了一种实现边链路资源配置的方法,包括:
用户设备UE根据边链路资源池的配置指示信息确定用于边链路通信的边链路资源池的时域资源;
其中,所述边链路资源池在时域上包括至少一个时隙,所述时隙中的至少一个时域符号用于边链路通信;其中,边链路资源池的时域资源为边链路通信专用资源,或者为边链路通信与蜂窝链路共享资源。
本申请还提供了一种计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令用于执行上述任一实施例所述的实现边链路资源配置的方法。
本申请又提供了一种实现资源配置的装置,包括处理器、存储器以及存储在存储器上可在处理器上运行的计算机程序,该计算机程序运行时实现上述任一实施例所述的实现边链路资源配置的方法。
本申请再提供了一种实现边链路资源配置的装置,包括配置模块,发送模块;其中,
配置模块,设置为配置用于边链路通信的边链路资源池的时域资源,其中,所述边链路资源池在时域上包括至少一个时隙,所述时隙中的至少一个时域符号用于边链路通信;所述边链路资源池的时域资源为边链路通信专用资源,或者为边链路通信与蜂窝链路共享资源;
发送模块,设置为将所述边链路通信的边链路资源池的时域资源的配置指示信息发送给用户设备。
本申请还提供了另一种实现边链路资源配置的装置,包括:接收模块、处理模块;其中,
接收模块,设置为接收用于边链路通信的边链路资源池的时域资源的资源配置指示信息,其中,边链路资源池在时域上包括至少一个时隙,所述时隙中的至少一个时域符号用于边链路通信;其中,边链路资源池的时域资源为边链路通信专用资源,或者为边链路通信与蜂窝链路共享资源;
处理模块,设置为根据所述资源配置指示信息确定用于边链路Sidelink通信的时域资源。
本申请还提供了一种实现资源配置的系统,包括:网络侧和用户设备,其中,网络侧包括上述一种实现边链路资源配置的装置;用户设备包括上述另一种实现边链路资源配置的装置。
附图说明
此处所说明的附图用来提供对本申请的进一步理解,构成本申请的一部分,本申请的示意性实施例及其说明用于解释本申请,并不构成对本申请的不当限定。在附图中:
图1为相关技术中Sidelink通信结构的示意图;
图2为5G系统中时隙的展示示意图;
图3为5G系统中时隙中符号类型配置的实施例的示意图;
图4为本申请实现边链路资源池配置中的时隙指示的一个实施例的示意图;
图5(a)为本申请的边链路资源池配置指示方法中,时隙中边链路符号数量n的指示含义的第一实施例的示意图;
图5(b)为本申请的边链路资源池配置指示方法中,时隙中边链路符号数量n的指示含义的第二实施例的示意图;
图5(c)为本申请的边链路资源池配置指示方法中,时隙中边链路符号数量n的指示含义的第三实施例的示意图;
图5(d)为本申请的边链路资源池配置指示方法中,时隙中边链路符号数量n的指示含义的第四实施例的示意图;
图5(e)为本申请的边链路资源池配置指示方法中,时隙中边链路符号数量n的指示含义的第五实施例的示意图;
图6(a)为本申请的边链路资源池配置指示方法中,利用SFI指示Sidelink符号的第一实施例的示意图;
图6(b)为本申请的边链路资源池配置指示方法中,利用SFI指示Sidelink符号的第二实施例的示意图;
图6(c)为本申请的边链路资源池配置指示方法中,利用SFI指示Sidelink符号的第三实施例的示意图;
图7为本申请的边链路资源池配置指示方法中,利用SFI指示Sidelink符号的第四实施例的示意图;
图8(a)为本申请的边链路资源池配置指示方法中,边链路符号数量n和起始符号位置k的指示含义的第一实施例的示意图;
图8(b)为本申请的边链路资源池配置指示方法中,边链路符号数量n和起始符号位置k的指示含义的第二实施例的示意图;
图9(a)为本申请的边链路资源池配置指示方法中,边链路触发指示信息的实现的第一实施例的示意图;
图9(b)为本申请的边链路资源池配置指示方法中,边链路触发指示信息的实现的第二实施例的示意图;
图10(a)为本申请的边链路资源池配置指示方法中,边链路触发指示信息的实现的第三实施例的示意图;
图10(b)为本申请的边链路资源池配置指示方法中,边链路触发指示信息的实现的第四实施例的示意图;
图11(a)为本申请的边链路资源池配置指示方法中,边链路触发指示信息的实现的第五实施例的示意图;
图11(b)为本申请的边链路资源池配置指示方法中,边链路触发指示信息的 实现的第六实施例的示意图;
图12为本申请的边链路资源池配置指示方法中,通过系统信令实现资源配置的第一实施例的流程示意图;
图13为本申请的边链路资源池配置指示方法中,通过RRC信令实现资源配置的第二实施例的示意图;
图14为本申请的边链路资源池配置指示方法中,通过RRC信令实现资源配置的第三实施例的流程示意图;
图15为本申请实现边链路资源池配置的一种装置的组成结构示意图;
图16为本申请实现边链路资源池配置的另一种装置的组成结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚明白,下文中将结合附图对本申请的实施例进行详细说明。需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互任意组合。
在Sidelink通信系统中,UE之间使用Sidelink资源进行信息的传输,根据具体的应用场景及业务类型等,Sidelink通信方式包括但不限于:设备到设备(D2D,Device to Device)通信,车辆到车辆(V2V,Vehicle to Vehicle)通信等。在相关技术的Sidelink通信中,UE使用边链路资源池(Sidelink resource pool)中的资源发送Sidelink信号。其中,边链路资源池包括:
物理边链路控制信道(PSCCH,Physical Sidelink Control Channel)资源池,用于承载边链路控制信息;物理边链路共享信道(PSSCH,Physical Sidelink Shared Channel)资源池,用于承载边链路数据业务信息;物理边链路广播信道(PSBCH,Physical Sidelink Broadcast Channel)资源池,用于承载Sidelink广播信息;物理边链路发现信道(PSDCH,Physical Sidelink Discovery Channel)资源池,用于承载Sidelink发现信号。
通常,根据具体的场景需求,网络侧会为Sidelink UE配置Sidelink资源池,或者由系统预配置Sidelink资源池,UE使用Sidelink资源池中的资源承载Sidelink信息。网络侧配置或系统预定义配置中,可以为Sidelink UE配置上述 多种类型的Sidelink资源池中的任意一个或多个。其中,系统可以是无线通信网络系统,这里可以认为是由更高层级的节点确定,Sidelink资源池是预定义配置的资源集合。
当UE在Sidelink进行信息的交互时,发送端UE在PSCCH资源上发送Sidelink控制信息(SCI,Sidelink Control Information),向接收端UE指示所传输的Sidelink数据信息所使用的PSSCH资源,以及相关的控制信息,如调制编码方式(MCS,Modulation and Coding Scheme),功率控制指示,数据重传指示等。进一步地,发送端UE在SCI所指示的PSSCH资源上发送Sidelink数据。另外,UE还可以在PSBCH资源上发送Sidelink广播信息,在PSDCH资源上发送Sidelink发现信息。
为了在下一代(New Radio,NR)通信系统中实现Sidelink通信,本申请提供一种实现资源配置的方法,包括:
网络侧指示用于Sidelink通信的边链路资源池的时域资源,其中,边链路资源池在时域上包括至少一个时隙,所述时隙中的至少一个时域符号用于边链路通信,所指示的时域符号也称为边链路符号。
其中,边链路资源池的时域资源为边链路通信专用资源,或者为边链路通信与蜂窝链路共享资源。
对应UE侧,包括:UE根据边链路资源池的配置指示信息确定用于边链路Sidelink通信的边链路资源池的时域资源。其中,用于边链路资源池在上包括至少一个时隙,所述时隙中的至少一个时域符号用于边链路通信;其中,边链路资源池的时域资源为边链路通信专用资源,或者为边链路通信与蜂窝链路共享资源。
可选地,网络侧的实体可以包括但不限于:演进型基站(evolved Node B,eNB)、中继站(Relay Node,RN)、小区协作实体(Multi-cell Coordination Entity,MCE)、网关(Gateway,GW)、移动性管理设备(Mobility Management Entity,MME)、演进型通用陆地无线接入网(Evolved Universal Terrestrial Radio Access Network,EUTRAN)操作管理及维护(Operation Administration and Maintenance,OAM)管理器等。为了方便,本文以基站为例进行描述。
在5G通信系统中,时域资源的最小粒度是符号(symbol),符号可以分为:循环前缀正交频分复用符号(CP-OFDM,Cyclic Prefix-OFDM Orthogonal Frequency Division Multiplex),或者基于离散傅氏变换的OFDM符号(DFT-S-OFDM,Discrete Fourier Transform Spread OFDM)。
进一步地,一个时隙(slot)包括:12个长循环前缀(extend CP,extend Cyclic Prefix)或14个普通循环前缀(normal CP)的连续符号,如图2所示。或者,可以由一个或多个连续的符号(小于或等于7个符号)构成迷你时隙(mini-slot)。频域上,资源的最小粒度为子载波(sub-carrier),根据不同的系统配置,每个子载波包含的频域宽度不同,包括以下任意一种或多种:15kHz,30kHz,60kHz,120kHz,240kHz。由12个连续子载波可构成一个频域资源块(RB,resource block)。如上所述,符号或时隙或mini-slot是5G系统中的时域资源配置的资源单元,RB是频域资源配置的资源单元,本文中,以这种为基本单元实现Sidelink资源的配置。
在5G系统中,基站会为蜂窝链路UE指示用于蜂窝通信的时域和频域资源配置。包括时域上的符号及slot划分,以及每个符号的类型;频域上包括子载波和RB的划分。其中,时域上,有三种符号类型:下行符号(DL symbol),上行符号(UL symbol),以及灵活(Flexible)符号(X symbol)。每个slot中的每个符号都可配置为上述三种符号类型中的任意一种。如图3所示的示例,slot#n中包含5个DL symbol(如图3中的斜线阴影小方格所示),5个UL symbol(如图3中的横线阴影小方格所示),以及4个Flexible symbol(如图3中的空白小方格所示)。其中,DL symbol用于承载下行信号,即从基站发送给UE的信号;UL symbol用于承载上行信号,即UE发送给基站的信号;Flexible符号为灵活可重配置的符号,也就是说,X symbol可进一步被重配置为DL symbol或UL symbol。之外,已被配置为DL symbol或UL symbol的符号不能改变符号类型。每个slot中的符号类型及位置由系统通过信令配置指示。slot中符号的其他配置情况如图3所示,这里不再赘述。
可选地,Sidelink资源池为用于承载Sidelink信息或信号的一组资源,由网络侧通过物理层和/或高层信令配置,或者由系统预配置。每个Sidelink资源池在时域上可以包含一个或多个时域资源单元,时域资源单元包括以下任意一项或多项:符号,slot,mini-slot;在频域上包含一个或多个RB,所包含的多个 RB可以连续或不连续。其中,PSCCH资源池,PSSCH资源池,PSBCH资源池,PSDCH资源池都是Sidelink资源池的一种,本申请中对Sidelink资源池的配置指示方式可应用于上述任意一种或多种资源池配置。
当Sidelink资源池的资源共享蜂窝通信时域及频域资源时,需要以蜂窝链路中已有的时域和频域资源为基础进行配置。比如:在蜂窝链路已指示的符号及slot划分,符号的类型为基础,进一步配置Sidelink资源池中的时域资源。
由于UE可以同时保持蜂窝通信与Sidelink通信,因此Sidelink资源池的配置需要尽量避免与蜂窝通信资源冲突,也就是说,Sidelink资源池中包含的时域和频域资源应尽可能不影响蜂窝链路的资源配置。在新一代通信系统如5G系统中,小区内进行蜂窝通信的UE可以通过接收网络侧节点(如基站)的相应配置信令确定时域上每个slot中的每个符号的符号类型。进一步的,根据基站的调度指示,UE使用相应符号类型的符号接收或发送信号。
还需要说明的是,由于Sidelink通信的信号由UE发送,由周围其他支持Sidelink通信的UE接收,为了避免受到蜂窝下行信号的干扰,Sidelink资源池中应采用UL symbol和/或Flexible symbol,而避免使用DL symbol。其中,这里所说的UL symbol或Flexible symbol是指蜂窝通信中,基站为蜂窝链路所配置的UL symbol或Flexible symbol。
而且,由于Sidelink资源池配置不能与蜂窝网络用户的资源配置冲突,因此,在Sidelink资源池的配置中,指示出的用于Sidelink通信的资源在时域上至少不包含DL symbol,即Sidelink资源池中指示出的符号包含UL symbol和/或Flexible symbol。
在一个实施例中,本申请实现资源配置的方法中,指示用于Sidelink通信的边链路资源池的时域资源,包括:
指示在资源指示周期T内用于Sidelink通信的时隙的时隙索引号(slot index),其中,指示的时隙索引号对应的时隙中的至少一个时域符号为所述边链路资源池的时域资源;
或者,以位图(bitmap)指示在资源指示周期内T内的时隙,其中,所述位图中对应bit位指示为有效的bit对应的时隙中至少一个时域符号为所述边链路资源池的时域资源。
可选地,资源指示周期T可以为:基站指示小区公共资源配置的周期,表示蜂窝通信小区的时域资源配置周期;或者,资源指示周期T也可以为Sidelink资源池的周期,配置指示Sidelink资源池的专用配置周期,表示所指示的Sidelink资源池配置的重复时间间隔。
可选地,Sidelink资源池周期可以与蜂窝小区资源配置周期不同。
当配置有Sidelink资源池周期时,上述指示的slot index可以是Sidelink资源池周期中包含的多个slot的顺序编号。
指示周期T在时域上,以slot为单位,包含N个slot,例如周期为40slot,80slot,160slot,320slot等。则在每个周期内可依次为每个slot顺序编号,确定为slot index。比如:一个周期内的第一个slot对应的slot index=0,第二个slot对应的slot index=1,依次类推,直到slot index=N-1。N为大于或等于1的整数。
本实施例中,基站在指示Sidelink资源池时,指示包含在Sidelink资源池中的一个或多个slot对应的slot index。指示出的slot index对应的slot即表示在时域上,该slot中的部分或全部符号可以用于Sidelink通信。其中,对Sidelink资源池中包含的一个或多个slot的指示,可以逐个依次指示所配置的每个slot的slot index;或者,也可以以位图(bitmap)方式指示所配置的slot,其中,bitmap的长度为指示周期T内包含的slot的数量N,比如:bitmap相应指示位为“1”时,即定义相应bit位“1”为有效指示,表示对应的slot包含在Sidelink资源池中,反之定义相应指示位为“0”同理可得。
对应UE侧,可选地,UE根据边链路资源池的配置指示信息确定用于边链路通信的边链路资源池的时域资源包括:
当边链路资源池的配置指示信息指示了在资源指示周期内的时隙索引号,UE根据slot index,在资源指示周期T内确定slot index对应的时隙中的至少一个时域符号为所述边链路资源池的时域资源;
或者,当边链路资源池的配置指示信息以位图指示了在资源指示周期内的时隙,所述UE根据所指示的Sidelink资源池配置的slot位图,在所述资源指示周期内确定位图中指示为有效的bit位对应的时隙中至少一个时域符号为所述边链路资源池的时域资源。
可选地,采用预配置的方式,确定由slot index所指示出的slot中,是slot的全部符号还是部分符号用于Sidelink通信。比如:系统预定义指示出的Sidelink slot中的全部符号可用于Sidelink通信;或者,预定义所指示的Sidelink slot中的部分符号可用于Sidelink通信,而且,每个slot中可用的符号数量及位置可以预定义确定,比如:预定义:每个slot中的最后4个符号作为Sidelink通信的时域资源。
可选地,UE根据预定义的信息,在资源指示周期T内确定slot index对应的slot中的部分或全部符号作为Sidelink符号。
举个例子来看,假设UE从接收到的资源配置信息中获得:指示周期T=160slot,slot index=[20,21,22,23,24,56,57,58,59,60]。那么,UE可以获知,每个指示周期T之内的时隙20,时隙21,时隙22,时隙23,时隙24,时隙56,时隙57,时隙58,时隙59和时隙60为用于Sidelink通信的时域资源,如图4中斜线阴影小方格所示。
可选地,本实施例实现资源配置的方法,还包括:
在所述边链路资源池包含的时隙中,指示边链路符号,即用于边链路通信的时域符号;
或者,预定义在所述边链路资源池包含的时隙中的边链路符号,包括预定义边链符号的数量及在时隙中的位置。
对应UE侧,还包括:UE根据指示出的用于边链路通信的边链路符号,确定这些指示出的边链路符号为用于Sidelink通信的时域资源所在的符号位置。
可选地,当指示出的slot中的全部符号都作为用于Sidelink通信的Sidelink资源时,不需要额外指示;当指示出的slot中的部分符号可作为用于Sidelink通信的Sidelink资源时,则需要指示出相应slot中的可用于Sidelink通信的符号位置。
可选地,在所述边路链资源池包含的时隙中指示边链路符号包括:指示所述时隙中的所述边链路符号数量n,其中,n为正整数。
进一步地,边链路符号数量n表示:
从所述时隙的起始符号开始,连续的n个符号为所述边链路符号,或者从 所述时隙的最后一个符号开始,倒数向前连续的n个符号为所述边链路符号;
或者,当所述时隙中有部分符号配置为下行符号时,所述边链路符号数量n表示:从该时隙中最后一个下行符号之后的第一个符号开始,连续的n个符号为所述边链路符号;
或者,当所述时隙中有部分符号配置为上行符号时,所述边链路符号数量n表示:从该时隙中第一个上行符号之前的一个符号开始,倒数向前连续的n个符号为所述边链路符号;
或者,当所述时隙中有部分符号配置为灵活符号时,所述边链路符号数量n表示:从该时隙中第一个灵活符号开始连续的n个符号为边链路符号;或者,从最后一个灵活符号开始倒数向前的连续n个符号为所述边链路符号。
可选地,在所述边路链资源池包含的时隙中指示边链路符号包括:基于时隙格式指示SFI指示所述边链路符号。
对于UE侧,UE根据SFI指示确定边链路符号包括:
UE确定在SFI对应的时隙中,SFI指示为预设符号类型的符号为边链路符号;其中,预设符号类型的符号包括:下行符号或上行符号或灵活符号。
进一步地,基于SFI指示所述边链路符号包括:
在所述SFI对应的时隙中,SFI指示为预设符号类型的符号为所述边链路符号;或者,
在所述SFI对应的时隙中,将所述SFI指示为第一符号类型,并且与蜂窝链路配置为第二符号类型重叠的符号,作为所述边链路符号。
对于UE侧,UE根据SFI指示确定边链路符号包括:
在SFI对应的时隙中,UE将所述时隙格式指示SFI指示为第一符号类型,并且与蜂窝链路配置为第二符号类型重叠的符号,作为所述边链路符号。
可选地,第一符号类型为系统预定义的用于指示边链路资源的SFI中的指定符号类型;第二符号类型为系统预定义或网络侧配置指示的蜂窝链路资源配置中的指定符号类型。
可选地,定符号类型的符号包括:下行符号或上行符号或灵活符号;第一 符号类型与所述第二符号类型是相同符号类型,或者是不同的符号类型。
可选地,在所述边路链资源池包含的时隙中指示边链路符号包括:指示所述时隙中的所述边链路符号的数量n,以及起始符号位置#k。
进一步地,所述边链路符号的数量n与所述起始符号位置#k的指示含义包括:从所述时隙中的起始符号位置#k开始的连续n个符号为所述边链路符号。
可选地,在所述边路链资源池包含的时隙中指示边链路符号包括:指示所述时隙中不用于边链路通信的符号数量m,其中,符号数量m为非负整数。
进一步地,所述符号数量m的指示含义包括:
从所述时隙的起始符号开始,连续的m个符号不用于边链路通信,或者从所述时隙的最后一个符号开始,倒数向前连续的m个符号不用于边链路通信;
或者,当所述时隙中有部分符号配置为下行符号时,所述符号数量m表示:从该时隙中最后一个下行符号之后的第一个符号开始,连续的m个符号不用于边链路通信;
或者,当所述时隙中有部分符号配置为上行符号时,所述符号数量m表示:从该时隙中第一个上行符号之前的一个符号开始,倒数向前连续的m个符号不用于边链路通信;
或者,当所述时隙中有部分符号配置为灵活符号时,所述符号数量m表示:从该时隙中第一个灵活符号开始连续的m个符号不用于边链路通信;或者,从最后一个灵活符号开始倒数向前的连续m个符号不用于边链路通信。
以用于Sidelink通信的Sidelink资源池中的一个slot为例,指示一个slot中用于Sidelink通信的符号位置的方式包括但不限于:
第一种方式:在一个slot中,指示用于Sidelink通信的边链路符号数量n。
第二种方式:在一个slot中,基于时隙格式指示(SFI,Slot Format Indication)指示用于Sidelink通信的符号。
第三种方式:在一个slot中,指示用于Sidelink通信的符号数量n,以及用于Sidelink通信的起始符号位置k。
第四种方式,在一个slot中,指示不用于Sidelink通信的符号数量m。
下面分别对上述四种指示一个slot中用于Sidelink通信的可用符号的方式分别进行详细描述。
第一种方式:在一个slot中,指示用于Sidelink通信的边链路符号数量n,其中n为大于或等于1的正整数。
可选地,边链路符号数量n的指示含义可以包括下述情况:
第一种方式中的第一种情况,从时隙索引号对应的slot中的起始符号(即第一个符号)开始,连续的n个符号用于Sidelink通信的边链路符号,或者从slot中的最后一个符号开始,倒数向前连续的n个符号用于Sidelink通信的边链路符号,1≦n≦14。
第一种方式中的第二种情况,当某时隙索引号对应的slot中有部分符号配置为DL symbol时,n的指示含义为:从该slot中最后一个DL symbol之后的第一个符号开始,连续的n个符号用于Sidelink通信的边链路符号。
第一种方式中的第三种情况,当某时隙索引号对应的slot中有部分符号配置为UL symbol时,n的指示含义为:从该slot中第一个UL symbol之前的第一个符号开始,倒数向前连续的n个符号用于Sidelink通信的边链路符号。
第一种方式中的第四种情况,当某时隙索引号对应的slot中有部分符号配置为Flexible symbol时,n的指示含义为:从该slot中第一个Flexible symbol开始连续的n个符号用于Sidelink通信的边链路符号;或者,从最后一个Flexible symbol开始倒数向前的连续n个符号用于Sidelink通信的边链路符号。
对应UE侧,则包括:
从时隙中的起始符号开始,连续的n个符号为边链路符号,或者从时隙中的最后一个符号开始,倒数向前连续的n个符号为边链路符号;
或者,当时隙中有部分符号配置为DL symbol时,所述边链路符号数量n表示:从该时隙中最后一个DL symbol之后的第一个符号开始,连续的n个符号为边链路符号;
或者,当时隙中有部分符号配置为UL symbol时,所述边链路符号数量n表示:从该时隙中第一个UL symbol之前的第一个符号开始,倒数向前连续的n个符号为边链路符号;
或者,当时隙中有部分符号配置为Flexible symbol时,所述边链路符号数量n表示:从该时隙中第一个灵活符号Flexible symbol开始连续的n个符号为边链路符号;或者,从最后一个灵活符号Flexible symbol开始倒数向前的连续n个符号为边链路符号。
可选地,边链路符号数量n可以是统一配置的,即针对每个slot中的符号数量n的值均相同;
可选地,边链路符号数量n也可以是为每个slot分别独立配置的,即不同slot中的边链路符号数量n的值可以不同。
本发明实施例通过对边链路符号数量n的不同定义,实现了适应于slot情况的Sidelink symbol配置,达到了配置连续n个符号用于Sidelink通信的作用,使得Sidelink资源的配置具有一定的灵活性和适应性。
举个例子来看,假设基站指示了Sidelink资源池包括的多个slot,并且指示了每个slot中可用于Sidelink通信的符号,即指示了符号数量n的值。那么,UE从接收到的资源配置信息,即可确定用于Sidelink通信的slot,并且根据所指示每个slot中可用于Sidelink通信的符号数量n还能确定具体可用的符号位置。这里,以符号数量n的值为统一配置为例,并假设符号数量n=5,那么,根据上述不同情况中符号数量n指示含义,如图5所示:
结合图5(a)~图5(e)所示,其中,斜线阴影小方格表示蜂窝链路资源中配置为DL symbol,横线阴影小方格表示蜂窝链路资源中配置为UL symbol,空白小方格表示蜂窝链路资源中配置为Flexible symbol,雪花点阴影小方格表示用于Sidelink通信的Sidelink symbol。对于第一种情况中符号数量n的指示含义,n=5表示从slot的起始符号开始,连续n个符号用于Sidelink通信,如图5(a)所示;或结尾符号开始,连续n个符号用于Sidelink通信,如图5(b)所示。类似地,根据第二种情况中符号数量n的指示含义,用于Sidelink通信的符号如如图5(c)所示,根据第三种情况中符号数量n的指示含义,用于Sidelink通信的符号如如图5(d),根据第四种情况中符号数量n的指示含义,用于Sidelink通信的符号如如图5(e)所示。
第二种方式:在一个slot中,基于SFI指示用于Sidelink通信的符号。
在NR系统中,定义了用于指示一个slot中DL/X/UL符号配置的SFI列表,其中包含多个SFI index,每个SFI index对应于一种固定的DL/X/UL配置,指示了一个slot中三种符号类型的符号位置。
一个SFI列表的示例如表1所示:
表1
Figure PCTCN2019082415-appb-000001
本申请中,利用SFI,可以定义其中的某符号类型用于指示Sidelink symbol,本文中的这种方式称为Sidelink SFI。
可选地,可以采用下述情况来指示Sidelink SFI:
第二种方式中的第一种情况,Sidelink SFI中的指示用于Sidelink通信的slot中的符号为预设符号类型的符号(如DL symbol或UL symbol或Flexible symbol)作为Sidelink symbol。
第二种方式中的第二种情况,将Sidelink SFI中时隙索引号对应的指示的第一符号类型与系统蜂窝链路上同一slot中的第二符号类型重叠的符号,作为用于Sidelink通信的Sidelink symbol。
可选地,所述第一符号类型为系统预定义的用于指示边链路资源的SFI中的指定符号类型;所述第二符号类型为系统预定义或网络侧配置指示的蜂窝链路资源配置中的指定符号类型。
对应UE侧,则包括:
所述UE确定在所述SFI对应的时隙中,SFI指示为预设符号类型的符号为所述边链路符号;
或者,在所述SFI对应的时隙中,所述UE将所述时隙格式指示SFI指示为第一符号类型,并且与蜂窝链路配置为第二符号类型重叠的符号,作为所述边链路符号。
可选地,对于第二种方式中的第一种情况:
系统可预定义采用Sidelink SFI指示中的任意一种符号类型,用于在Sidelink资源配置中指示所配置的Sidelink symbol。比如:以Sidelink SFI中的UL symbol指示Sidelink symbol为例,则表示基站指示的资源配置信息中,指示出的Sidelink SFI index对应的slot符号结构中,定义为UL symbol的符号作为Sidelink symbol。
举个例子来看,假设基站指示了Sidelink资源池包括的多个slot,并且指示了每个slot中可用于Sidelink的符号,即指示Sidelink SFI index。那么,UE从接收到的资源配置信息,即可确定指示出的Sidelink资源池中包括的slot,并且根据所指示的Sidelink SFI index还能确定具体可用的符号位置。其中,Sidelink SFI index可以是统一配置,即针对每个slot使用相同的SFI index,也可以为每个slot分别独立配置,即不同slot上的SFI index可以不同。这里,以Sidelink SFI index统一配置为例,并假设系统预定义采用Sidelink SFI中的DL symbol指示为Sidelink symbol,以SFI index=18(如表1所示)为例,则表示配置了SFI index为18的slot中的前三个符号为Sidelink symbol,如图6(a)中雪花点阴影小方格所示;当系统预定义采用Sidelink SFI中的UL symbol指示为Sidelink symbol时,以SFI index=24(如表1所示)为例,则表示配置了SFI index为24的slot中的最后两个符号为Sidelink symbol,如图6(b)中雪花点阴影小方格所示;当系 统预定义采用Sidelink SFI中的Flexible symbol指示为Sidelink symbol时,以SFI index=42(如表1所示)为例,则表示配置了SFI index为42的slot中的第4,5,6个符号为Sidelink symbol,如图6(c)中雪花点阴影小方格所示。
可选地,对于第二种方式中的第二种情况:
一方面,系统预定义Sidelink SFI的某种符号类型为第一符号类型;另一方面,系统预定义或配置指示确定蜂窝链路资源配置中的某种符号类型为第二符号类型。其中,某种符号类型可以是DL symbol或UL symbol或Flexible symbol,并且,第一符号类型与第二符号类型可以是相同符号类型,也可以是不同的符号类型。可选地,包括如表2所示的以下情况中的任意一种或多种:
表2
Figure PCTCN2019082415-appb-000002
第二种方式中的第二种情况的指示含义包括:在Sidelink slot上,当Sidelink SFI中指示的第一符号类型与同一slot中蜂窝链路配置指示出的第二符号类型有重叠符号时,重叠符号即作为用于Sidelink通信的资源。以表中的组合option 3-2为例,即第一符号类型为Flexible symbol,第二符号类型为UL symbol,此时,即表示当Sidelink SFI指示的Flexible symbol与同一slot上蜂窝链路资源配置中的UL symbol重叠时,重叠的符号为Sidelink时域资源。举例来看,假设UE从基站获得蜂窝链路中的资源配置,指示slot#n中的前10个符号为Flexible symbol,最后4个符号为UL symbol,slot#n+1中的前6个符号为Flexible symbol,后面8个符号为UL symbol。而且,UE从Sidelink资源配置信令中获得Sidelink SFI指示,指示SFI index=24(如表1所示),且Sidelink SFI为统一指示,即对所有Sidelink slot都有效。那么,
如图7所示,在slot#n中,第一符号类型与第二符号类型重叠的符号包括symbol#10,#11;在slot#n+1中,重叠符号包括symbol#6,#7,#8,#9,#10 和#11,这些重叠符号即为用于Sidelink通信的资源。图7中,横线阴影小方格表示蜂窝链路配置指示出的Uplink symbol,雪花点阴影小方格表示Sidelink symbol,白色小方格表示蜂窝链路配置指示出的Flexible symbol。
本发明实施例通过预定义不同的第一符号类型与第二符号类型的组合,提供了更灵活的Sidelink时域符号配置指示效果。
在指示slot中用于Sidelink通信的符号位置的第二种方式中,采用NR系统中的SFI index指示Sidelink资源池中包含的slot中实际用于Sidelink通信的符号位置,一方面有利于减小指示开销,另一方面,结合已有的蜂窝链路的资源配置,也达到了更灵活的指示效果。需要说明的是,本文中是使用SFI以上述第二种方式中的第一种情况或第二种方式中的第二种情况的含义来指示用于配置指示Sidelink资源,与蜂窝通信中指示蜂窝链路UE的SFI指示含义不同。
可选地,第二种方式中基于SFI指示来确定Sidelink symbol的方式还包括以下任意一项或任意多项的组合:
当SFI指示的Sidelink symbol被网络侧如基站指示为蜂窝链路的DL symbol时,SFI指示的Sidelink symbol无效;
当SFI指示的Sidelink symbol被网络侧如基站指示为蜂窝链路的UL symbol时,SFI指示的Sidelink symbol无效;
当SFI指示的Sidelink symbol被网络侧如基站指示为蜂窝链路的UL symbol,且该UL symbol调度UE进行蜂窝上行传输时,SFI指示的Sidelink symbol无效;
当SFI指示的Sidelink symbol被网络侧如基站指示为蜂窝链路的UL symbol,并且在该UL symbol没有调度UE进行蜂窝链路上行传输时,SFI指示的Sidelink symbol可用于Sidelink通信。
对应UE侧,则还包括:
当SFI指示的边链路符号已被网络侧指示为蜂窝链路的DL symbol时,所述方法还包括:
UE确定SFI指示的边链路符号无效;
当SFI指示的边链路符号已被网络侧指示为蜂窝链路的UL symbol时,所述方法还包括:
UE确定SFI指示的边链路符号无效;
当SFI指示的边链路符号已被网络侧指示为蜂窝链路的UL symbol,且该UL symbol上调度UE进行蜂窝链路上行传输时,所述方法还包括:
所述UE确定SFI指示的边链路符号无效;
当SFI指示的边链路符号已被网络侧指示为蜂窝链路的UL symbol,但在该UL symbol上没有调度UE进行蜂窝链路上行传输时,所述方法还包括:
UE确定SFI指示的边链路符号可用于边链路通信。
第三种方式:在一个slot中,指示用于Sidelink通信的边链路符号数量n,以及用于Sidelink通信的起始符号位置k。
对应UE侧,UE确定所述边链路符号包括:在所述边路链资源池的配置指示信息中获得对所述时隙中的所述边链路符号数量n,以及起始符号位置k的指示;UE将所述时隙中的符号k开始连续n个符号确定为Sidelink符号。
可选地,边链路符号数量n与起始符号位置#k的指示含义可以包括:
从时隙索引号对应的slot中的符号#k开始的连续n个符号用于Sidelink通信的边链路符号,即指示从slot中的符号#k开始的连续n个符号为Sidelink资源池中的符号。其中,#k为起始符号在一个slot中的符号的顺序编号。
举例来看,假设基站指示了Sidelink资源池包括的多个slot,并且指示了每个slot中可用于Sidelink通信的符号,即指示了符号数量n的值和起始符号位置k的值。这样,当UE接收资源配置信息后,即可确定出指示出的Sidelink资源池中包含的slot,并且根据所指示的符号数量n和起始符号位置k确定出slot中可用的符号位置。本实施例中,假设n=4,k=5,那么,相应slot中所指示的Sidelink symbol为:
如果slot中的符号是从0开始编号的,那么,k=5表示从符号#5开始,此时,符号#5,符号#6,符号#7,符号#8为Sidelink symbol,如图8(a)中雪花点阴影小方格所示;或者,如果slot中的符号是从1开始编号的,那么,k=5表示从符号#5开始,此时,符号#5,符号#6,符号#7,符号#8为Sidelink symbol,如图8(b)中雪花点阴影小方格所示。
第四种方式,在一个slot中,指示不用于Sidelink通信的符号数量m。
可选地,符号数量m的指示含义可以包括下述情况:
第四种方式中的第一种情况,从时隙索引号对应的slot中的起始符号(即第一个符号)开始,连续的m个符号不用于Sidelink通信,或者从slot中的最后一个符号开始,倒数向前连续的m个符号不用于Sidelink通信,0≦n≦14。
第四种方式中的第二种情况,当某时隙索引号对应的slot中有部分符号配置为DL symbol时,m的指示含义为:从该slot中最后一个DL symbol之后的第一个符号开始,连续的m个符号不用于Sidelink通信,即除了DL symbol与所指示的m个符号之外,剩余的符号可以用于Sidelink通信。
第四种方式中的第三种情况,当某时隙索引号对应的slot中有部分符号配置为UL symbol时,m的指示含义为:从该slot中第一个UL symbol之前的第一个符号开始,倒数向前连续的m个符号不用于Sidelink通信,即除了UL symbol与所指示的m个符号之外,剩余的符号可以用于Sidelink通信。
第四种方式中的第四种情况,当某时隙索引号对应的slot中有部分符号配置为Flexible symbol时,m的指示含义为:从该slot中第一个Flexible symbol开始连续的m个符号不用于Sidelink通信,即除了指示出的m个符号之外,剩余的Flexible symbol可以用于Sidelink通信;或者,从最后一个Flexible symbol开始倒数向前的连续m个符号不用于Sidelink通信,即除了指示出的m个符号之外,剩余的Flexible symbol可以用于Sidelink通信。
可选地,符号数量m可以是统一配置的,即针对每个slot中的符号数量m的值均相同。
可选地,符号数量m也可以是为每个slot分别独立配置的,即不同slot中的符号数量m的值可以不同。
对于UE侧,UE确定所述边链路符号包括:在所述边路链资源池的配置指示信息中获得对所述时隙中不用于边链路通信的符号数量m的指示;根据获得的符号数量m确定所述边链路符号。其中,符号数量m为非负整数。
本发明实施例通过对符号数量m的不同定义,实现了适应于slot情况的Sidelink symbol配置,达到了配置连续m个符号不用于Sidelink通信的作用,使得Sidelink资源的配置具有一定的灵活性和适应性。
可选地,本申请实现资源配置的方法,还包括:
网络侧指示触发指示信息,用于指示触发或不触发所配置的所述边链路资源池的时域资源。
对应UE侧,还包括:
UE根据触发指示信息,确定触发或不触发所配置的所述边链路资源池的时域资源。
可选地,网络侧通过触发指示信息,指示触发或不触发使用所述边链路资源池中的全部或部分资源。
可选地,以配置的Sidelink资源池为基础,触发信息可指示的含义包括以下任意一种或任意多种的组合:
指示在一定时间范围内,所述Sidelink资源池中的资源可用或不可用,其中,时间范围的值可以是系统预定义的,或者,也可以是由网络侧指示的;
指示在一定时间间隔之后的Sidelink资源池中的资源可用或不可用,其中,时间间隔的值可以是系统预定义的,或者也可以是由网络侧指示的;
指示当前slot中的Sidelink资源池中的资源可用或不可用;
指示Sidelink触发SFI(Trigger SFI),边链路Trigger SFI中指示出的第三符号类型对应的符号与Sidelink资源池中包含的symbol重叠的符号,指示为可用或不可用的Sidelink资源。其中,第三符号类型由系统预定义或网络侧配置,第三符号类型为DL symbol或UL symbol或/Flexible symbol中的任意一种。
可选地,所述方法还包括:当所述网络侧未发送所述触发指示信息,或者所述触发指示信息中指示为相应资源不可用,则表示相应的所述边链路资源池中的资源不可以用于承载边链路信号。
对应UE侧,则包括:
UE确定触发或不触发所配置的所述边链路资源池的时域资源包括以下任意一种或任意多种的组合:
UE根据触发指示信息,确定在一定时间范围内,所述Sidelink资源池中的资源可用或不可用,其中,时间范围的值为系统预定义,或者由所述网络侧指示;
所述UE根据触发指示信息,确定在一定时间间隔之后的所述Sidelink资源池中的资源可用或不可用,其中,时间间隔的值为系统预定义,或者由所述网络侧指示的;
所述UE根据触发指示信息,确定当前时隙中的所述Sidelink资源池中的资源可用或不可用;
所述UE根据触发指示信息,确定在Sidelink触发SFI中指示出的第三符号类型对应的符号与所述Sidelink资源池中包括的符号重叠的符号为可用或不可用的Sidelink资源;其中,第三符号类型由系统预定义或网络侧配置,第三符号类型为DL symbol或上行符号UL symbol或Flexible symbol中的任意一种。
下面结合具体示例对触发指示信息的实现进行描述。
一个实施例中,假设系统预定义了时间范围为t个slot,则,UE接收到触发指示信息后,t个slot之内的Sidelink资源池配置中的资源有效,可以用于Sidelink信号的承载。本实施例中,再假设系统预定义的Sidelink资源池配置如图9(a)所示,雪花点阴影出表示Sidelink资源池配置的可用于Sidelink通信的Sidelink资源;Sidelink资源池中的资源是否确实可用,依赖于触发信息的指示。本实施例中,当UE在slot#n收到触发指示信息,指示为可用时,则从slot#n+1开始的t个slot中的Sidelink资源池中的资源可用即确实可以用于发送或接收Sidelink信号,如图9(b)中的竖线阴影部分所示。
可选地,如果UE未收到触发指示信息,或者触发指示信息中指示为相应资源不可用,那么,相应的Sidelink资源池中的资源不可以用于承载Sidelink信号。
另一个实施例中,假设系统预定义了时间间隔为t个slot,则,UE接收到触发指示信息后的t个slot开始,Sidelink资源池配置中的资源有效,可以用于Sidelink信号的承载。本实施例中,再假设系统预定义的Sidelink资源池配置如图10(a)所示,雪花点阴影出表示配置的Sidelink资源池中包含的Sidelink资源;Sidelink资源池中的资源是否确实可用,依赖于触发指示信息的指示。本实施例中,当UE在slot#n收到触发指示信息,指示为可用时,则从slot#n+t之后的 Sidelink资源池中的资源可用即确实可以用于发送或接收Sidelink信号,如图10(b)中的竖线阴影部分所示。
又一个实施例中,假设系统预定义了第三符号类型为Flexible symbol,则,在Sidelink trigger SFI中指示出的Flexible symbol与Sidelink资源池配置中包含的symbol重叠部分的符号,表示为触发指示信息所指示的可用或不可用资源。本实施例中,再假设系统预定义的Sidelink资源池配置如图11(a)所示,雪花点阴影出表示Sidelink资源池配置的可用于Sidelink通信的Sidelink资源,包括slot中末尾的6个符号;Sidelink资源池中的资源是否确实可用,依赖于触发指示信息的指示。本实施例中,当UE收到触发指示信信为:指示Sidelink trigger SFI为SFI index=30(如表1所示),Flexible符号为符号#10,符号#11,符号#12三个符号,可见,本实施例中Trigger SFI中指示的第三符号类型与Sidelink资源池中符号的重叠符号为符号#10,符号#11,符号#12,即这三个符号为确实可用的Sidelink资源,如图11(b)中的竖线阴影部分所示,而Sidelink资源池中包括的其它符号不可用于Sidelink信号传输。
可选地,本申请实现资源配置的方法还包括:
网络侧通过信令指示所述边链路资源池的时域资源的资源配置信息。
对应UE侧,还包括:
UE根据接收到的信令获得边链路资源池的时域资源的资源配置信息。
可选地,信令可以包括但不限于以下一种或任意组合:
小区公共配置信令;
专用高层信令;
下行控制信息(DCI,Downlink Control information)信令;
Sidelink广播消息;
Sidelink控制指示(SCI)信令。
可选地,小区公共配置信息包括但不限于以下一种或任意组合:
系统消息(SI,System Information);
主系统消息块(MIB,Master Information Block);
系统消息块(SIB,System information Block);
其他系统消息(OSI,Other System Information);
剩余系统消息(RMSI,Remain System Information)。
可选地,专用高层信令可以包括但不限于:专用的无线资源控制(RRC,Radio Resource Control)信令。
需要说明的是,在不冲突的前提下,承载用于Sidelink通信的资源的指示信息的方式可以使用上述系统信令中的任意一种或任意多种的组合。UE可根据系统预定义或网络侧的配置,确定应接收的信令类型,并从中获得相应的Sidelink资源的资源配置信息。
可选地,资源配置信息包括以下任意一项或多项的组合:
所述边链路资源池的周期;
所述边链路资源池中包含的时隙列表;
指示所述边链路资源池中的边链路符号的边链路资源指示SFI;
指示所述边链路资源池中的边链路符号的边链路资源指示SFI中的预设符号类型;
指示所述边链路资源池中的边链路符号的边链路资源指示SFI中的第一符号类型;
蜂窝链路的第二符号类型;
指示所述边链路资源池中的资源触发的边链路触发SFI中的第三符号类型;
所述边链路资源池中指示的边链路符号所在时隙中的所述链路链符号的数量n;
所述边链路资源池中指示的边链路符号所在时隙中的所述链路链符号的起始符号位置#k;
用于指示边链路资源配置的无线网络临时标识(Radio Network Tempory Identity,RNTI)。
下面结合实施例对将资源配置信息携带在系统信令中发送的具体实现。
一个实施例中,将资源配置信息携带在小区公共配置信令中发送为例,相应地,UE会根据接收到的小区公共配置信令获得用于Sidelink通信的资源的资源配置信息。
在蜂窝通信系统中,基站可以通过小区公共配置信令为小区内UE进行统一的资源配置,包括时域slot及slot内符号类型,频域RB划分的指示等。由于Sidelink资源池可以被小区内多个进行Sidelink通信的UE共享,因此,用于Sidelink通信的资源可以采用小区公共配置信令携带资源配置信息。Sidelink会根据接收到的小区公共配置信令获得用于Sidelink通信的资源的资源配置信息,进而根据所配置的资源进行Sidelink信号的接收和/或发送。
可选地,根据系统预定义的规则,UE从公共配置信令中获得用于Sidelink通信的资源的资源配置信息,并按照具体的信令承载方式进行相应接收。
如图12所示,本实施例中,假设系统预定义用于Sidelink通信的资源的资源配置信息由基站通过系统消息(SI)携带,那么,包括:
步骤1200:UE周期性接收SI。
步骤1201:UE从接收到的SI中获得用于Sidelink通信的资源的指示信息,比如:Sidelink slot index列表、Sidelink SFI、Sidelink RBs等。
步骤1202:UE根据指示信息的含义,确定用于Sidelink通信的资源。
可选地,还包括:
步骤1203:UE在指示的用于Sidelink通信的资源上发送Sidelink信号,和/或接收其他UE的Sidelink信号。
另一个实施例中,将资源配置信息携带在专用的高层信令中发送为例,相应地,UE会根据接收到的专用的高层信令获得用于Sidelink通信的资源的资源配置信息。这种方式下,网络侧如基站可以更灵活的调度配置每个UE的Sidelink资源池,有利于提高资源配置效率,从而提高网络侧资源管理控制的精细度。
以专用的高层信令为专用的RRC信令为例,UE与基站建立连接后,接收来自基站的专用的RRC信令,并从中获得用于Sidelink通信的资源的资源配置信息。
可选地,以RRC信令携带用于Sidelink通信的资源的资源配置信息时,可以根据UE的属性,将一个或多个UE划分为一组,RRC信令为属于同一组的Sidelink UE配置相同的用于Sidelink通信的资源即相同的Sidelink资源池。
举例来看,假设UE从基站接收到RRC信令,这里RRC信令为Sidelink专用配置信令,携带有Sidelink资源池,Sidelink信号模式,Sidelink发送和/或接收参数等配置指示信息。其中,对于Sidelink资源池的配置,假设RRC信令中指示包括:Sidelink资源池周期,以及在Sidelink资源池周期中配置为Sidelink时域资源的slot index,包含一个或多个slot。进一步的地,假设RRC信令中还指示:在每个配置为Sidelink资源的slot中,可用于Sidelink的符号位置。本实施例中,假设UE接收到RRC信令,从中解析可获得如下配置信息:Sidelink资源池周期为80slots;Sidelink资源池中包含的slot index列表=[0,5,10,15,20,25,30];每个Sidelink slot中用于Sidelink通信的符号指示包括:在每个slot中的起始位置开始的4个符号用于Sidelink通信。那么,UE获得的用于Sidelink通信的时域资源的资源配置信息如图13所示。
又一实施例中,将资源配置信息携带在DCI信令中发送为例,相应地,UE会根据接收到的DCI信令获得用于Sidelink通信的资源的资源配置信息。具体地,可以在UE与基站建立连接后,基站为UE进行Sidelink通信配置专用的无线网络临时标识(RNTI,Radio Network Temporary Identifier),称为边链路RNTI(SL-RNTI,Sidelink RNTI)。这样,以SL-RNTI为标识,UE接收与Sidelink控制相关的DCI信令并从中获得与用于Sidelink通信的资源相关的指示信息。
举例来看,假设UE从基站接收RRC配置信令,指示Sidelink资源池配置;UE还需要根据SL-RNTI接收Sidelink资源触发信令,用于触发指示RRC信令中配置的Sidelink资源池中的资源是否确实可用。其中,假设触发信令指示为当前slot的Sidelink资源是否触发可用,比如:在以SL-RNTI标识的DCI中以1bit指示当前slot中的Sidelink资源池中的资源是否可用,当指示bit位为“1”时,表示触发指示激活,资源池中的资源为有效资源,可用于Sidelink信号承载。如图14所示,具体包括:
步骤1400:UE接收RRC信令中并从中获得了Sidelink资源池配置。
步骤1401:本实施例中,假设UE在slot#n收到来自基站的DCI指示。
步骤1402:本实施例中,假设确定出触发指示bit位为“1”,表示当前slot上Sidelink资源可用。
步骤1403:UE在相应的Sidelink资源上接收Sidelink信号。
步骤1404:UE在slot#n+1收到来自基站的DCI指示,且触发指示bit位为“0”,表示当前slot上Sidelink资源不可用。
步骤1405:UE在slot#n+1上不接收Sidelink信号。
再一实施例中,将资源配置信息携带在Sidelink广播消息中发送为例,相应地,UE会根据接收到的Sidelink广播消息,获得用于Sidelink通信的资源的资源配置信息。其中,Sidelink广播消息由Sidelink节点发送,Sidelink节点包括但不限于:Sidelink UE,Sidelink中继节点(Relay node)等。
在Sidelink广播消息中,可以包括采用本申请中任意一种或任意多种组合的用于Sidelink资源池配置的指示方式的资源配置信息,用于向周围Sidelink UE指示相关的Sidelink资源池配置。
在蜂窝网络信息配置无效的场景下,比如:无蜂窝网络覆盖,或者Sidelink专用资源上等情况,UE无法从网络侧获得Sidelink资源池配置,此时,基于Sidelink节点之间的传输,可以共享Sidelink资源池配置信息来达到有效的Sidelink资源配置效果。举例来看,假设UE从接收到的Sidelink控制指示(SCI)消息中获得用于Sidelink通信的资源的资源配置信息即Sidelink资源池相关配置信息。其中,SCI由Sidelink节点发送。与Sidelink广播消息不同,SCI消息是点到点的单播信息,比如:从SCI发送端UE发给相应的接收端UE,SCI中可以包括采用本申请中任意一种或任意多种组合的用于Sidelink资源池配置的指示方式的资源配置信息,用于指示接收端UE相关的Sidelink资源池配置。利用SCI消息指示Sidelink资源池配置相关信息,达到了更灵活的资源配置效果。
需要说明的是,在不冲突的前提下,本申请中对将用于指示一个以上时隙为用于Sidelink通信的时域资源的资源配置信息承载在系统信令中的信令承载方式,和用于指示用于Sidelink通信的时域资源的资源配置信息的方式,可以采用上述任意一种信令承载方式,或者任意多种的组合。比如:采用系统消息信令承载,组合使用对所指示的Sidelink slot中的符号配置进行指示;再如:所指 示的Sidelink SFI index可以采用RRC信令承载等,其他情况可类似组合使用,这里不再赘述。
可选地,本申请实现资源配置的方法还包括:
网络侧指示Sidelink资源池中包括的频域资源,从而实现了对下一代通信系统如5G系统中Sidelink资源池配置的指示。
本申请提供了一种计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令用于执行本实施例中任一项所述的实现资源配置的方法。
本申请提供了一种实现资源配置的装置,包括处理器、存储器以及存储在存储器上可在处理器上运行的计算机程序包括:本实施例中任一项所述的实现资源配置的方法的步骤。
图15为本申请实现边链路资源配置的一种装置的组成结构示意图,如图15所示,包括:配置模块,发送模块;其中,
配置模块,用于配置用于边链路通信的边链路资源池的时域资源,其中,所述边链路资源池在时域上包括至少一个时隙,所述时隙中的至少一个时隙符号用于边链路通信;所述边链路资源池的时域资源为边链路通信专用资源,或者为边链路通信与蜂窝链路共享资源;
发送模块,用于将用于边链路通信的边链路资源池的时域资源的配置指示信息发送给用户设备。
可选地,配置模块具体用于:
配置在资源指示周期内的时隙索引号;其中,指示所述时隙索引号对应的时隙中的至少一个时域符号为所述边链路资源池的时域资源;
或者,以位图指示在资源指示周期内的时隙,其中,所述位图中指示为有效的位对应的时隙中至少一个时域符号为所述边链路资源池的时域资源。
可选地,配置模块还用于:在所述边链路资源池包含的时隙中指示用于边链路通信的边链路符号;
或者,预定义在所述边链路资源池包含的时隙中的边链路符号,包括预定义边链路符号的数量及在时隙中的位置。
可选地,在所述边路链资源池包含的时隙中指示边链路符号包括:
指示所述时隙中的所述边链路符号数量n,其中,n为正整数;或者,
基于时隙格式指示SFI指示所述边链路符号;或者,
指示所述时隙中的所述边链路符号数量n,以及起始符号位置k;或者,
指示所述时隙中不用于边链路通信的符号数量m,其中,符号数量m为非负整数。
可选地,配置模块还用于:指示触发指示信息,用于指示触发或不触发所配置的所述边链路资源池的时域资源。
可选地,发送模块具体用于:通过信令发送指示所述边链路资源池的时域资源的资源配置指示信息。
图16为本申请实现边链路资源配置的另一种装置的组成结构示意图,如图16所示,包括:接收模块、处理模块;其中,
接收模块,用于接收用于边链路通信的边链路资源池的时域资源的资源配置指示信息,其中,边链路资源池在时域上包括至少一个时隙,所述时隙中的至少一个时隙符号用于边链路通信;其中,边链路资源池的时域资源为边链路通信专用资源,或者为边链路通信与蜂窝链路共享资源;
处理模块,用于根据所述资源配置指示信息确定用于边链路Sidelink通信的时域资源。
可选地,上述指示边链路资源池的时域资源包括:指示在资源指示周期内的时隙索引号,其中,指示的所述时隙索引号对应的时隙中的至少一个时域符号为所述边链路资源池的时域资源;或者,以位图指示在资源指示周期内的时隙,其中,所述位图中指示为有效的位对应的时隙中至少一个时域符号为所述边链路资源池的时域资源;相应地,
处理模块具体用于:根据所述资源配置指示信息中指示的时隙索引号,在所述资源指示周期内确定所述时隙索引号对应的时隙中的至少一个时域符号为所述边链路资源池的时域资源;
或者,根据资源配置指示信息中指示的位图,在所述资源指示周期内确定 位图中指示为有效的位对应的时隙中至少一个时域符号为所述边链路资源池的时域资源。
可选地,所述处理模块还用于:
根据所述资源配置指示信息,在所述边链路资源池包含的时隙中确定用于边链路通信的边链路符号;或者,根据预定义在所述边链路资源池包含的时隙中的边链路符号,确定预定义边链路符号的数量及在时隙中的位置。
可选地,所述确定所述边链路资源池包含的所述边链路符号包括:
确定所述时隙中的所述边链路符号数量n,其中,n为正整数;或者,
基于时隙格式指示SFI指示确定所述边链路符号;或者,
确定所述时隙中的所述边链路符号数量n,以及起始符号位置k;或者,
确定所述时隙中不用于边链路通信的符号数量m,其中,符号数量m为非负整数。
可选地,处理模块还用于:
根据触发指示信息,确定触发或不触发所配置的所述边链路资源池的时域资源。
可选地,接收模块具体用于:
接收信令获得所述边链路资源池的时域资源的资源配置指示信息。
本申请还提供一种实现资源配置的系统,包括:网络侧和用户设备,其中,网络侧包括上述图15所示任一项所述的装置;用户设备包括上述图16所示任一项所述的装置。
本申请技术方案包括:网络侧指示至少一个时隙为用于Sidelink通信的时域资源。通过本申请,为在下一代通信系统中实现Sidelink通信提供了保障。

Claims (56)

  1. 一种实现边链路资源配置的方法,包括:
    网络侧指示用于边链路通信的边链路资源池的时域资源,其中,所述边链路资源池在时域上包括至少一个时隙,所述时隙中的至少一个时域符号用于边链路通信;
    所述边链路资源池的时域资源为边链路通信专用资源,或者为边链路通信与蜂窝链路共享资源。
  2. 根据权利要求1所述的方法,其中,所述指示用于边链路通信的边链路资源池的时域资源包括:
    指示在资源指示周期内的时隙索引号;其中,指示的所述时隙索引号对应的时隙中的至少一个时域符号为所述边链路资源池的时域资源;
    或者,以位图指示在资源指示周期内的时隙,其中,所述位图中指示为有效的位对应的时隙中至少一个时域符号为所述边链路资源池的时域资源。
  3. 根据权利要求2所述的方法,其中,所述资源指示周期包括:
    所述网络侧指示小区公共资源配置的周期;
    或者,所述边链路资源池的周期,表示所指示的边链路资源池配置的重复时间间隔。
  4. 根据权利要求1所述的方法,所述方法还包括:
    在所述边链路资源池包含的时隙中指示用于边链路通信的边链路符号;
    或者,预定义在所述边链路资源池包含的时隙中的边链路符号,包括预定义边链路符号的数量及在时隙中的位置。
  5. 根据权利要求4所述的方法,其中,在所述边路链资源池包含的时隙中指示边链路符号包括:指示所述时隙中的所述边链路符号数量n,其中,n为正整数。
  6. 根据权利要求5所述的方法,其中,所述边链路符号数量n表示:
    从所述时隙的起始符号开始,连续的n个符号为所述边链路符号,或者从所述时隙的最后一个符号开始,倒数向前连续的n个符号为所述边链路符号;
    或者,当所述时隙中有部分符号配置为下行符号时,所述边链路符号数量n表示:从该时隙中最后一个下行符号之后的第一个符号开始,连续的n个符号为所述边链路符号;
    或者,当所述时隙中有部分符号配置为上行符号时,所述边链路符号数量n表示:从该时隙中第一个上行符号之前的一个符号开始,倒数向前连续的n个符号为所述边链路符号;
    或者,当所述时隙中有部分符号配置为灵活符号时,所述边链路符号数量n表示:从该时隙中第一个灵活符号开始连续的n个符号用于边链路通信;或者,从最后一个灵活符号开始倒数向前的连续n个符号为所述边链路符号。
  7. 根据权利要求4所述的方法,其中,在所述边链路资源池包含的时隙中指示所述边链路符号包括:基于时隙格式指示SFI指示所述边链路符号。
  8. 根据权利要求7所述的方法,其中,所述基于SFI指示所述边链路符号包括:
    在所述SFI对应的时隙中,SFI指示为预设符号类型的符号为所述边链路符号;其中,所述预设符号类型的符号包括:下行符号或上行符号或灵活符号。
  9. 根据权利要求7所述的方法,其中,所述基于SFI指示所述边链路符号包括:
    在所述SFI对应的时隙中,将所述SFI指示为第一符号类型,并且与蜂窝链路配置为第二符号类型重叠的符号,作为所述边链路符号。
  10. 根据权利要求9所述的方法,其中,所述第一符号类型为系统预定义的用于指示边链路资源的SFI中的指定符号类型;
    所述第二符号类型为系统预定义或网络侧配置指示的蜂窝链路资源配置中的指定符号类型。
  11. 根据权利要求10所述的方法,其中,所述指定符号类型的符号包括:下行符号或上行符号或灵活符号;
    所述第一符号类型与所述第二符号类型是相同符号类型,或者是不同的符号类型。
  12. 根据权利要求7所述的方法,所述方法还包括:
    当所述SFI指示的所述边链路符号被所述网络侧指示为蜂窝链路的下行符号时,所述SFI指示的所述边链路符号无效;
    当所述SFI指示的所述边链路符号被所述网络侧指示为蜂窝链路的上行符号时,所述SFI指示的所述边链路符号无效;
    当所述SFI指示的所述边链路符号被网络侧指示为蜂窝链路的上行符号,且该上行符号调度用于用户设备UE进行蜂窝链路上行传输时,所述SFI指示的所述边链路符号无效;
    当所述SFI指示的所述边链路符号被网络侧指示为蜂窝链路的上行符号,且该上行符号没有调度UE进行蜂窝链路上行传输时,所述SFI指示的所述边链路符号可用于边链路通信。
  13. 根据权利要求4所述的方法,其中,在所述边链路资源池包含的时隙中指示所述边链路符号包括:
    指示所述时隙中的所述边链路符号数量n,以及起始符号位置#k。
  14. 根据权利要求13所述的方法,其中,所述边链路符号数量n与所述起始符号位置#k的指示含义包括:
    从所述时隙中的起始符号位置#k开始的连续n个符号为所述边链路符号。
  15. 根据权利要求14所述的方法,其中,所述起始符号位置#k为所述起始符号在所述时隙中的符号的顺序编号。
  16. 根据权利要求4所述的方法,其中,在所述边链路资源池包含的时隙中指示所述边链路符号包括:
    指示所述时隙中不用于边链路通信的符号数量m,其中,所述符号数量m为非负整数。
  17. 根据权利要求16所述的方法,其中,所述符号数量m的指示含义包括:
    从所述时隙的起始符号开始,连续的m个符号不用于边链路通信,或者从所述时隙的最后一个符号开始,倒数向前连续的m个符号不用于边链路通信;
    或者,当所述时隙中有部分符号配置为下行符号时,所述符号数量m表示: 从该时隙中最后一个下行符号之后的第一个符号开始,连续的m个符号不用于边链路通信;
    或者,当所述时隙中有部分符号配置为上行符号时,所述符号数量m表示:从该时隙中第一个上行符号之前的一个符号开始,倒数向前连续的m个符号不用于边链路通信;
    或者,当所述时隙中有部分符号配置为灵活符号时,所述符号数量m表示:从该时隙中第一个灵活符号开始连续的m个符号不用于边链路通信;或者,从最后一个灵活符号开始倒数向前的连续m个符号不用于边链路通信。
  18. 根据权利要求5或16所述的方法,其中,不同时隙的所述边链路符号数量n的值相同或不相同;
    或者,所述不同时隙的所述符号数量m的值相同或不相同。
  19. 根据权利要求1所述的方法,所述方法还包括:
    所述网络侧指示触发指示信息,用于指示触发或不触发所配置的所述边链路资源池的时域资源。
  20. 根据权利要求19所述的方法,其中,所述网络侧通过所述触发指示信息,指示触发或不触发使用所述边链路资源池中的全部或部分资源。
  21. 根据权利要求20所述的方法,其中,所述网络侧通过所述触发指示信息指示包括以下任意一种或任意多种的组合:
    指示在一定时间范围内,所述边链路资源池中的资源可用或不可用,其中,所述时间范围的值为系统预定义,或者由所述网络侧指示;
    指示在一定时间间隔之后的所述边链路资源池中的资源可用或不可用,其中,所述时间间隔的值为系统预定义,或者由所述网络侧指示;
    指示当前时隙中的所述边链路资源池中的资源可用或不可用;
    指示边链路触发时隙格式指示SFI,其中,所述边链路触发SFI中指示出的第三符号类型对应的符号与所述边链路资源池中包含的符号重叠的符号,指示为可用或不可用边链路资源;其中,所述第三符号类型由系统预定义或网络侧配置,所述第三符号类型为下行符号或上行符号或灵活符号中的任意一种。
  22. 根据权利要求21所述的方法,所述方法还包括:当所述网络侧未发送所述触发指示信息,或者所述触发指示信息中指示为相应资源不可用,则表示相应的所述边链路资源池中的资源不可以用于承载边链路信号。
  23. 根据权利要求1、2、4或19所述的方法,所述方法还包括:
    网络侧通过信令指示所述边链路资源池的时域资源的资源配置信息。
  24. 根据权利要求23所述的方法,其中,所述信令包括以下一种或任意组合:
    小区公共配置信令;
    专用高层信令;
    下行控制信息DCI信令;
    边链路广播消息;
    边链路控制指示SCI信令;
    所述资源配置信息包括以下任意一项或多项的组合:
    所述边链路资源池的周期;
    所述边链路资源池中包含的时隙列表;
    指示所述边链路资源池中的边链路符号的边链路资源指示SFI;
    指示所述边链路资源池中的边链路符号的边链路资源指示SFI中的预设符号类型;
    指示所述边链路资源池中的边链路符号的边链路资源指示SFI中的第一符号类型;
    蜂窝链路的第二符号类型;
    指示所述边链路资源池中的资源触发的边链路触发SFI中的第三符号类型;
    所述边链路资源池中指示的边链路符号所在时隙中的所述链路链符号的数量n;
    所述边链路资源池中指示的边链路符号所在时隙中的所述链路链符号的起始符号位置#k;
    用于指示边链路资源配置的无线网络临时标识RNTI。
  25. 根据权利要求24所述的方法,其中,所述小区公共配置信息包括以下一种或任意组合:
    系统消息SI;
    主系统消息块MIB;
    系统消息块SIB;
    其他系统消息OSI;
    剩余系统消息RMSI。
  26. 根据权利要求24所述的方法,其中,所述专用高层信令包括:专用的无线资源控制RRC信令。
  27. 一种计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令用于执行上述权利要求1~权利要求26任一项所述的实现边链路资源配置的方法。
  28. 一种实现资源配置的装置,包括处理器、存储器以及存储在存储器上可在所述处理器上运行的计算机程序,所述计算机程序运行时实现上述权利要求1~权利要求26任一项所述的实现边链路资源配置的方法。
  29. 一种实现边链路资源配置的方法,包括:
    用户设备UE根据边链路资源池的配置指示信息确定用于边链路通信的边链路资源池的时域资源;
    其中,所述边链路资源池在时域上包括至少一个时隙,所述时隙中的至少一个时域符号用于边链路通信;其中,边链路资源池的时域资源为边链路通信专用资源,或者为边链路通信与蜂窝链路共享资源。
  30. 根据权利要求29所述的方法,其中,所述UE根据所述边链路资源池的配置指示信息确定所述边链路资源池的时域资源包括:
    当所述边链路资源池的配置指示信息指示在资源指示周期内的时隙索引号,所述UE根据所述时隙索引号,在所述资源指示周期内确定所述时隙索引号对应的时隙中的至少一个时域符号为所述边链路资源池的时域资源;
    或者,当所述边链路资源池的配置指示信息以位图指示在资源指示周期内的时隙,所述UE根据所述位图,在所述资源指示周期内确定所述位图中指示为有效的位对应的时隙中至少一个时域符号为所述边链路资源池的时域资源。
  31. 根据权利要求30所述的方法,其中,所述资源指示周期包括:
    所述网络侧指示小区公共资源配置的周期;
    或者,所述边链路资源池的周期,表示所指示的边链路资源池配置的重复时间间隔。
  32. 根据权利要求30所述的方法,所述边链路资源池的配置指示信息中还包括:
    在所述边链路资源池包含的时隙中指示用于边链路通信的边链路符号;
    或者,预定义在所述边链路资源池包含的时隙中的边链路符号,包括预定义边链路符号的数量及在时隙中的位置;
    所述UE根据所述边链路资源池的配置指示信息确定所述边链路资源池的时域资源包括:
    所述UE根据所述指示出的所述边链路符号或者预定义的所述边链路符号,确定所述边链路符号为用于边链路通信的时域资源。
  33. 根据权利要求32所述的方法,其中,所述UE确定所述边链路符号包括:在所述边路链资源池的配置指示信息中获得对所述时隙中的所述边链路符号数量n的指示,其中,n为正整数;根据边链路符号数量n确定所述边链路符号。
  34. 根据权利要求33所述的方法,其中,所述边链路符号数量n表示:
    从所述时隙的起始符号开始,连续的n个符号为所述边链路符号,或者从所述时隙的最后一个符号开始,倒数向前连续的n个符号为所述边链路符号;
    或者,当所述时隙中有部分符号配置为下行符号时,所述边链路符号数量n表示:从该时隙中最后一个下行符号之后的第一个符号开始,连续的n个符号为所述边链路符号;
    或者,当所述时隙中有部分符号配置为上行符号时,所述边链路符号数量n 表示:从该时隙中第一个上行符号之前的一个符号开始,倒数向前连续的n个符号为所述边链路符号;
    或者,当所述时隙中有部分符号配置为灵活符号时,所述边链路符号数量n表示:从该时隙中第一个灵活符号开始连续的n个符号为边链路符号;或者,从最后一个灵活符号开始倒数向前的连续n个符号为所述边链路符号。
  35. 根据权利要求32所述的方法,其中,所述UE确定所述边链路符号包括:在所述边路链资源池的配置指示信息中获得基于时隙格式指示SFI对所述边链路符号的指示;根据获得的指示确定所述边链路符号。
  36. 根据权利要求35所述的方法,所述UE根据所述SFI指示确定所述边链路符号包括:
    所述UE确定在所述SFI对应的时隙中,SFI指示为预设符号类型的符号为所述边链路符号;其中,所述预设符号类型的符号包括:下行符号或上行符号或灵活符号。
  37. 根据权利要求35所述的方法,其中,所述UE根据所述SFI指示确定所述边链路符号包括:
    在所述SFI对应的时隙中,所述UE将所述时隙格式指示SFI指示为第一符号类型,并且与蜂窝链路配置为第二符号类型重叠的符号,作为所述边链路符号。
  38. 根据权利要求37所述的方法,其中,所述第一符号类型为系统预定义的用于指示边链路资源的所述SFI中的指定符号类型;
    所述第二符号类型为系统预定义或网络侧配置指示的蜂窝链路资源配置中的指定符号类型。
  39. 根据权利要求38所述的方法,其中,所述指定符号类型的符号包括:下行符号或上行符号或灵活符号;
    所述第一符号类型与所述第二符号类型是相同符号类型,或者是不同的符号类型。
  40. 根据权利要求35所述的方法,所述UE根据所述SFI指示确定所述边链路符号包括:
    当所述SFI指示的边链路符号被所述网络侧指示为蜂窝链路中的下行符号时,所述UE确定所述SFI指示的边链路符号无效;
    当所述SFI指示的边链路符号被所述网络侧指示为蜂窝链路的上行符号时,所述UE确定所述SFI指示的边链路符号无效;
    当所述SFI指示的边链路符号被网络侧指示为蜂窝链路的上行符号,且该上行符号调度UE进行蜂窝链路上行传输时,所述UE确定所述SFI指示的边链路符号无效;
    当所述SFI指示的边链路符号被网络侧指示为蜂窝链路的上行符号,且该上行符号没有调度UE进行蜂窝链路上行传输时,所述UE确定所述SFI指示的边链路符号可用于边链路通信。
  41. 根据权利要求32所述的方法,其中,所述UE确定所述边链路符号包括:在所述边路链资源池的配置指示信息中获得对所述时隙中的所述边链路符号数量n,以及起始符号位置#k的指示;
    所述UE将所述时隙中的起始符号位置#k开始的连续n个符号确定为所述边链路符号。
  42. 根据权利要求41所述的方法,其中,所述起始符号位置#k为所述起始符号在所述时隙中的符号的顺序编号。
  43. 根据权利要求32所述的方法,其中,所述UE确定所述边链路符号包括:在所述边路链资源池的配置指示信息中获得对所述时隙中不用于边链路通信的符号数量m的指示;根据获得的符号数量m确定所述边链路符号;其中,符号数量m为非负整数。
  44. 根据权利要求43所述的方法,其中,所述不用于边链路通信的符号数量m表示:
    从所述时隙索引号对应的时隙的起始符号开始,连续的m个符号不用于边链路通信,或者从所述时隙索引号对应的时隙中的最后一个符号开始,倒数向前连续的m个符号不用于边链路通信;
    或者,当所述时隙索引号对应的时隙中有部分符号配置为下行符号时,所述符号数量m表示:从该时隙中最后一个下行符号之后的第一个符号开始,连 续的m个符号不用于边链路通信;
    或者,当所述时隙索引号对应的时隙中有部分符号配置为上行符号时,所述符号数量m表示:从该时隙中第一个上行符号之前的第一个符号开始,倒数向前连续的m个符号不用于边链路通信;
    或者,当所述时隙索引号对应的时隙中有部分符号配置为灵活符号时,所述符号数量m表示:从该时隙中第一个灵活符号开始连续的m个符号不用于边链路通信;或者,从最后一个灵活符号开始倒数向前的连续m个符号不用于边链路通信。
  45. 根据权利要求29所述的方法,所述方法还包括:
    所述UE根据触发指示信息,确定触发或不触发所配置的所述边链路资源池的时域资源。
  46. 根据权利要求45所述的方法,所述触发指示信息指示触发或不触发使用所述边链路资源池中的全部或部分资源;
    所述UE确定触发或不触发所配置的所述边链路资源池的时域资源包括以下任意一种或任意多种的组合:
    所述UE根据所述触发指示信息,确定在一定时间范围内,所述边链路资源池中的资源可用或不可用,其中,所述时间范围的值为系统预定义,或者由所述网络侧指示;
    所述UE根据所述触发指示信息,确定在一定时间间隔之后的所述边链路资源池中的资源可用或不可用,其中,所述时间间隔的值为系统预定义,或者由所述网络侧指示的;
    所述UE根据所述触发指示信息,确定当前时隙中的所述边链路资源池中的资源可用或不可用;
    所述UE根据所述触发指示信息,确定在边链路触发时隙格式指示SFI中指示出的第三符号类型对应的符号与所述边链路资源池中包含的符号重叠的符号为可用或不可用的边链路资源;其中,所述第三符号类型由系统预定义或网络侧配置,所述第三符号类型为下行符号或上行符号或灵活符号中的任意一种。
  47. 根据权利要求46所述的方法,所述方法还包括:
    所述UE未收到所述触发指示信息,或者所述触发指示信息中指示为相应资源不可用,则所述边链路资源池中的资源不可以用于承载边链路信号。
  48. 根据权利要求29、30、32或45所述的方法,所述方法还包括:
    所述UE根据接收到的信令获得所述边链路资源池的配置信息。
  49. 根据权利要求48所述的方法,其中,所述信令包括以下一种或任意组合:
    小区公共配置信令;
    专用高层信令;
    下行控制信息DCI信令;
    边链路广播消息;
    边链路控制指示SCI信令;
    所述资源配置信息包括以下任意一项或多项的组合:
    所述边链路资源池的周期;
    所述边链路资源池中包含的时隙列表;
    指示所述边链路资源池中的边链路符号的边链路资源指示SFI;
    指示所述边链路资源池中的边链路符号的边链路资源指示SFI中的预设符号类型;
    指示所述边链路资源池中的边链路符号的边链路资源指示SFI中的第一符号类型;
    蜂窝链路的第二符号类型;
    指示所述边链路资源池中的资源触发的边链路触发SFI中的第三符号类型;
    所述边链路资源池中指示的边链路符号所在时隙中的所述链路链符号的数量n;
    所述边链路资源池中指示的边链路符号所在时隙中的所述链路链符号的起始符号位置#k;
    用于指示边链路资源配置的无线网络临时标识RNTI。
  50. 根据权利要求49所述的方法,其中,所述小区级公共配置信息包括以下一种或任意组合:
    系统消息SI;
    主系统消息块MIB;
    系统消息块SIB;
    其他系统消息OSI;
    剩余系统消息RMSI。
  51. 根据权利要求49所述的方法,其中,所述专用高层信令包括:专用的无线资源控制RRC信令。
  52. 一种计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令用于执行上述权利要求29~权利要求51任一项所述的实现边链路资源配置的方法。
  53. 一种实现资源配置的装置,包括处理器、存储器以及存储在存储器上可在所述处理器上运行的计算机程序,所述计算机程序运行时实现上述权利要求29~权利要求51任一项所述的实现边链路资源配置的方法。
  54. 一种实现边链路资源配置的装置,包括配置模块,发送模块;其中,
    配置模块,设置为配置用于边链路通信的边链路资源池的时域资源,其中,所述边链路资源池在时域上包括至少一个时隙,所述时隙中的至少一个时域符号用于边链路通信;所述边链路资源池的时域资源为边链路通信专用资源,或者为边链路通信与蜂窝链路共享资源;
    发送模块,设置为将所述边链路通信的边链路资源池的时域资源的配置指示信息发送给用户设备。
  55. 一种实现边链路资源配置的装置,包括:接收模块、处理模块;其中,
    接收模块,设置为接收用于边链路通信的边链路资源池的时域资源的资源配置指示信息,其中,边链路资源池在时域上包括至少一个时隙,所述时隙中的至少一个时域符号用于边链路通信;其中,边链路资源池的时域资源为边链路通信专用资源,或者为边链路通信与蜂窝链路共享资源;
    处理模块,设置为根据所述资源配置指示信息确定用于边链路Sidelink通信的时域资源。
  56. 一种实现资源配置的系统,包括:网络侧和用户设备,其中,
    所述网络侧设置为实现权利要求1-26中任一项所述的方法;
    所述用户设备设置为实现权利要求29-51中任一项所述的方法。
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CN110392431B (zh) 2024-07-30
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US11601936B2 (en) 2023-03-07
CN110392431A (zh) 2019-10-29
CA3097606A1 (en) 2019-10-24
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US20210176747A1 (en) 2021-06-10
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