WO2024031463A1 - Sl通信方法、装置、设备、存储介质及程序产品 - Google Patents

Sl通信方法、装置、设备、存储介质及程序产品 Download PDF

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Publication number
WO2024031463A1
WO2024031463A1 PCT/CN2022/111551 CN2022111551W WO2024031463A1 WO 2024031463 A1 WO2024031463 A1 WO 2024031463A1 CN 2022111551 W CN2022111551 W CN 2022111551W WO 2024031463 A1 WO2024031463 A1 WO 2024031463A1
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Prior art keywords
carrier
information
terminal
carriers
transmission
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PCT/CN2022/111551
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English (en)
French (fr)
Inventor
马腾
赵振山
张世昌
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Oppo广东移动通信有限公司
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Priority to PCT/CN2022/111551 priority Critical patent/WO2024031463A1/zh
Publication of WO2024031463A1 publication Critical patent/WO2024031463A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation

Definitions

  • the embodiments of the present application relate to the field of communication technology, and in particular to an SL (Sidelink, sidelink) communication method, device, equipment, storage medium and program product.
  • SL idelink, sidelink
  • Carrier aggregation supported by SL communication requires UE (User Equipment) to independently perform SL sensing and resource selection on each carrier component.
  • UE User Equipment
  • the UE needs to receive SL data on all supported carrier components before determining the correlation.
  • Embodiments of the present application provide an SL communication method, device, equipment, storage medium and program product.
  • the technical solutions are as follows:
  • a SL communication method includes:
  • the first terminal sends first information on the first carrier, where the first information is used to indicate the SL transmission situation on at least one second carrier, and the first carrier and the second carrier are different carriers.
  • a SL communication method includes:
  • the second terminal receives the first information sent by the first terminal on the first carrier.
  • the first information is used to indicate the SL transmission situation on at least one second carrier.
  • the first carrier and the second carrier are different carrier wave.
  • an SL communication device includes:
  • a sending module configured to send first information on a first carrier, where the first information is used to indicate the SL sending situation on at least one second carrier, where the first carrier and the second carrier are different carriers.
  • an SL communication device includes:
  • a receiving module configured to receive the first information sent by the first terminal on the first carrier, the first information being used to indicate the SL transmission situation on at least one second carrier, the first carrier and the second carrier are different carriers.
  • a terminal device includes a processor and a memory.
  • a computer program is stored in the memory.
  • the processor executes the computer program to implement the above-mentioned first terminal.
  • a computer-readable storage medium is provided, and a computer program is stored in the storage medium, and the computer program is used to be executed by a processor to implement the above-mentioned SL communication on the first terminal side. method, or the above-mentioned SL communication method on the second terminal side.
  • a chip including programmable logic circuits and/or program instructions, when the chip is running, used to implement the above-mentioned SL communication method on the first terminal side, or The above-mentioned SL communication method on the second terminal side.
  • a computer program product includes computer instructions.
  • the computer instructions are stored in a computer-readable storage medium.
  • a processor reads the computer-readable storage medium from the computer-readable storage medium.
  • the computer instructions are obtained and executed to implement the above-mentioned SL communication method on the first terminal side or the above-mentioned SL communication method on the second terminal side.
  • the sending end sends the first information on a certain carrier, and the first information is used to indicate the SL transmission situation on other carriers except the above-mentioned carrier, so that the receiving end can learn the SL on other carriers without receiving information on other carriers.
  • the sending situation greatly reduces the complexity of receiving SL sent information when the receiving end operates on multi-carriers.
  • the receiving end does not need to perform sensing/decoding/blind detection on each carrier. It only receives the above-mentioned carriers and the first information.
  • the SL transmission status on other carriers can be clarified, which reduces the sensing steps, reduces the complexity of blind detection, and further saves power energy.
  • Figure 1 is a schematic diagram of a network architecture provided by an embodiment of the present application.
  • Figure 2 is a schematic diagram of intranet communication within network coverage provided by an embodiment of the present application.
  • Figure 3 is a schematic diagram of partial network coverage sidelink communication provided by an embodiment of the present application.
  • Figure 4 is a schematic diagram of communication outside network coverage provided by an embodiment of the present application.
  • Figure 5 is a schematic diagram of side communication with a central control node provided by an embodiment of the present application.
  • Figure 6 is a schematic diagram of unicast transmission provided by an embodiment of the present application.
  • Figure 7 is a schematic diagram of multicast transmission provided by an embodiment of the present application.
  • Figure 8 is a schematic diagram of broadcast transmission provided by an embodiment of the present application.
  • Figure 9 is a schematic diagram of resource selection provided by an embodiment of the present application.
  • Figure 10 is a timing diagram of resource selection and resource reservation based on interception provided by an embodiment of the present application.
  • Figure 11 is a schematic diagram of the time slot structure in NR-V2X provided by an embodiment of the present application.
  • Figure 12 is a schematic diagram of PSSCH transmission provided by an embodiment of the present application.
  • Figure 13 is a schematic diagram of the second-order SCI mapping method provided by an embodiment of the present application.
  • Figure 14 is a flow chart of an SL communication method provided by an embodiment of the present application.
  • Figure 15 is a schematic diagram of multi-carrier SL transmission provided by an embodiment of the present application.
  • Figure 16 is a flow chart of an SL communication method provided by another embodiment of the present application.
  • Figure 17 is a block diagram of an SL communication device provided by an embodiment of the present application.
  • Figure 18 is a block diagram of an SL communication device provided by another embodiment of the present application.
  • Figure 19 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • the network architecture may include: core network 11, access network 12 and terminal equipment 13.
  • the core network 11 includes several core network devices.
  • the functions of core network equipment are mainly to provide user connections, manage users, and carry services.
  • As a bearer network it provides an interface to external networks.
  • the core network of the 5G (5th Generation, fifth generation mobile communication technology) NR (New Radio) system can include AMF (Access and Mobility Management Function) entities, UPF (User Devices such as Plane Function (user plane function) entity and SMF (Session Management Function) entity.
  • AMF Access and Mobility Management Function
  • UPF User Devices such as Plane Function (user plane function) entity
  • SMF Session Management Function
  • the access network 12 includes a number of access network devices 14.
  • the access network in the 5G NR system can be called NG-RAN (New Generation-Radio Access Network).
  • the access network device 14 is a device deployed in the access network 12 to provide wireless communication functions for the terminal device 13 .
  • the access network equipment 14 may include various forms of macro base stations, micro base stations, relay stations, access points, etc.
  • the names of devices with access network device functions may be different. For example, in 5G NR systems, they are called gNodeB or gNB. As communication technology evolves, the name "access network equipment" may change.
  • access network devices For convenience of description, in the embodiment of the present application, the above-mentioned devices that provide wireless communication functions for the terminal device 13 are collectively referred to as access network devices.
  • the number of terminal devices 13 is usually multiple, and one or more terminal devices 13 may be distributed in the cell managed by each access network device 14 .
  • the terminal device 13 may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems, as well as various forms of user equipment (UE), mobile stations (Mobile Station). , MS) and so on.
  • UE user equipment
  • MS mobile stations
  • terminal devices For convenience of description, the devices mentioned above are collectively referred to as terminal devices.
  • the access network equipment 14 and the core network equipment communicate with each other through some air technology, such as the NG interface in the 5G NR system.
  • the access network device 14 and the terminal device 13 communicate with each other through some air technology, such as the Uu interface.
  • terminal equipment and "UE” are usually used interchangeably, but those skilled in the art can understand that the two usually express the same meaning.
  • Terminal equipment 13 and terminal equipment 13 can communicate with each other through a direct communication interface (such as PC5 interface) ,
  • a direct communication interface such as PC5 interface
  • the communication link established based on the direct communication interface may be called a direct link or SL.
  • SL transmission is the direct transmission of communication data between terminal devices through side links. Unlike traditional cellular systems in which communication data is received or sent through access network equipment, SL transmission has short delay and low overhead.
  • SL technology can be applied to scenarios where various terminal devices communicate directly.
  • the terminal device in this application refers to any device that communicates using SL technology.
  • the "5G NR system" in the embodiments of this application may also be called a 5G system or an NR system, but those skilled in the art can understand its meaning.
  • the technical solution described in the embodiments of this application can be applied to the 5G NR system, and can also be applied to the subsequent evolution system of the 5G NR system.
  • side-link communication according to the network coverage of the communicating terminal device, it can be divided into side-link communication within the network coverage, side-link communication with partial network coverage, and side-link communication outside the network coverage.
  • some terminal devices that perform side-link communication are located within the coverage of access network equipment (such as base stations). These terminal devices can receive configuration information from the access network equipment. command, and perform sideline communication according to the configuration of the access network equipment.
  • the terminal equipment located outside the network coverage cannot receive the configuration signaling of the access network equipment. In this case, the terminal equipment outside the network coverage will be based on the pre-Configuration information and is located within the network coverage.
  • the information carried in the PSBCH (Physical Sidelink Broadcast Channel) sent by the terminal device determines the sidelink configuration and performs sidelink communication.
  • PSBCH Physical Sidelink Broadcast Channel
  • all terminal devices performing side-link communication are located outside the network coverage, and all terminal devices determine the side-link configuration based on preconfiguration information for side-link communication.
  • multiple terminal devices (such as UE1, UE2, UE3) form a communication group.
  • the communication group has a central control node (such as UE1), which can also be called CH UE (Cluster Header UE, group head user equipment), the central control node (such as UE1) has at least one of the following functions: responsible for the establishment of communication groups; joining/leaving group members; performing resource coordination and providing services to other terminals Allocate sideline transmission resources, receive sideline feedback information from other terminals, coordinate resources with other communication groups, etc.
  • Device-to-device communication is a side link transmission technology based on D2D, so it has higher spectrum efficiency and more Low transmission delay.
  • the Internet of Vehicles system uses direct communication from terminal device to terminal device. Two transmission modes are defined in 3GPP (3rd Generation Partnership Project): Mode A and Mode B.
  • Mode A The transmission resources of the terminal equipment are allocated by the access network equipment.
  • the terminal equipment transmits communication data on the side link according to the transmission resources allocated by the access network equipment.
  • the access network equipment can be either a terminal or a terminal.
  • the device allocates transmission resources for a single transmission, and can also allocate transmission resources for semi-static transmission to the terminal device. As shown in Figure 2, the terminal device is located within the network coverage, and the access network device allocates transmission resources for sidelink transmission to the terminal device.
  • Mode B The terminal device selects transmission resources from the resource pool to transmit communication data. Specifically, the terminal device may select transmission resources from the resource pool by listening, or select transmission resources from the resource pool by random selection. As shown in Figure 4, the terminal device is located outside the network coverage, and the terminal device independently selects transmission resources from the preconfigured resource pool for side transmission; or as shown in Figure 2, the terminal device is located within the network coverage, and the terminal device is Transmission resources are independently selected from the resource pool configured in the network for side transmission.
  • the above-mentioned mode A is called mode 3 in LTE-V2X and is called mode 1 in NR-V2X;
  • the above-mentioned mode B is called mode 4 in LTE-V2X and is called mode 2 in NR-V2X.
  • terminal devices need to support autonomous driving functions, which puts forward higher requirements for data interaction between terminal devices, such as higher throughput, lower latency, higher reliability, and more Large coverage area, more flexible resource allocation, etc.
  • LTE-V2X supports broadcast transmission methods, and NR-V2X introduces unicast and multicast transmission methods.
  • unicast transmission there is only one terminal device at the receiving end.
  • the receiving end is all terminal devices in a communication group, or all terminal devices within a certain transmission distance.
  • UE1, UE2, UE3 and UE4 form a communication group, where UE1 To send data, other terminal devices UE2, UE3 and UE4 in the communication group are all terminal devices at the receiving end.
  • the receiving end is any terminal device around the sending end terminal device.
  • UE1 is the sending end terminal device, and the other terminal devices UE2-UE6 around it are all receiving end terminal devices.
  • Full listening means that the terminal device can listen to the data sent by other terminal devices in all time slots (or subframes) except the time slot in which the data is sent.
  • Partial Sensing is to save energy for terminal equipment. The terminal equipment only needs to listen to part of the time slots (or subframes), and select resources based on the results of partial sensing.
  • the terminal device treats all available resources in the selection window as a set A.
  • the terminal device detects PSCCH (Physical Sidelink Control Channel) within the listening window, measure the RSRP (Reference Signal Received) of the PSSCH (Physical Sidelink Shared Channel) scheduled by the PSCCH. Power, reference signal received power), if the measured PSSCH-RSRP is higher than the PSSCH-RSRP threshold, and whether there is a resource conflict between the reserved transmission resources and the data to be transmitted determined according to the reservation information in the control information, if there is a conflict , then the resource is excluded from set A.
  • the selection of the PSSCH-RSRP threshold is determined by the priority information carried in the detected PSCCH and the priority of the data to be transmitted by the terminal equipment.
  • the terminal device will increase the PSSCH-RSRP threshold by 3dB and repeat steps (1) to (3) until the number of remaining resources in set A is The number is greater than 20% of the total number of resources.
  • the terminal device performs S-RSSI (Sidelink Received Signal Strength Indicator, Sidelink Received Signal Strength Indicator) detection on the remaining resources in set A, and sorts them according to the energy level, and the 20% with the lowest energy (relative to the set The number of resources in A) resources are put into set B.
  • S-RSSI idelink Received Signal Strength Indicator, Sidelink Received Signal Strength Indicator
  • the terminal device selects a resource from set B with medium probability for data transmission.
  • each transmitted SCI Sidelink Control Information, sidelink control information
  • P_CMAX terminal predefined The maximum total transmission power
  • each transmitted SCI contains a priority information field , the larger the value in the priority information field, the lower the priority, the smaller the value, the higher the priority; the terminal device adjusts the transmit power of the sidelink with the lowest priority (the largest priority value) to ensure multi-carrier The total transmit power does not exceed P_CMAX.
  • the terminal equipment should discard the sidelink transmission on the carrier with the lowest priority (the highest priority value); if the total transmission power is still higher than P_CMAX , repeat the above steps on the remaining carriers.
  • the protocol does not regulate it, and the terminal device decides on its own which carrier to adjust the sidelink transmission on.
  • the resource selection algorithm of NR-V2X Mode 2 is also divided into two main steps, that is, the terminal device first determines the candidate resource set, and then selects resources from the candidate resource set to send data.
  • Figure 10 shows the timing diagram of resource selection and resource reservation based on listening in NR V2X.
  • the resource selection mechanisms of NR-V2X Mode 2 and LTE-V2X Mode 4 are similar, but there are the following differences:
  • Periodic reservations between TBs (Transport Blocks) in NR-V2X can be activated or deactivated in units of resource pools. These two situations determine whether there will be resource reservations in the first-level SCI received by the terminal device. time domain, and whether the terminal device needs to periodically reserve the selected time-frequency resources. These make the design of NR-V2X Mode 2 cover both activation and deactivation periodic reservations.
  • NR-V2X needs to support a large number of non-periodic services, and the calculation of average SL-RSSI is calculated by taking the average after periodic measurements at a certain time interval. Therefore, NR-V2X Mode 2 cancels the basis for resource exclusion in LTE-V2X. Steps to rank resources by average SL-RSSI.
  • NR-V2X mode 2 is more flexible than LTE-V2X mode 4.
  • the SL-RSRP and RSRP threshold comparison according to PSSCH and/or PSCCH is configurable, and X in X*M total can be ⁇ 20, 35 , one of 50 ⁇ %, the possible values of the resource reservation time domain include 1 to 99 milliseconds, and the length of the resource listening window can be 100 or 1100 milliseconds, etc.
  • step 2 of NR-V2X mode 2 the terminal device determines several transmission resources in the candidate resource set Some time domain constraints must be met.
  • SL-RSRP is the sum of the SL-RSRP measured by each port.
  • Figure 11(a) shows the time slot structure that does not include PSFCH (Physical Sidelink Feedback Channel, physical sidelink feedback channel) in the time slot;
  • Figure 11(b) shows the time slot structure that includes PSFCH.
  • PSFCH Physical Sidelink Feedback Channel, physical sidelink feedback channel
  • the PSCCH in NR-V2X starts from the second sidelink symbol of the time slot in the time domain and occupies 2 or 3 OFDM (Orthogonal Frequency Division) Multiplexing (Orthogonal Frequency Division Multiplexing) symbols can occupy ⁇ 10,12 15,20,25 ⁇ PRBs (Physical Resource Blocks) in the frequency domain.
  • OFDM Orthogonal Frequency Division
  • PRBs Physical Resource Blocks
  • PSSCH also starts from the second sidelink symbol of the time slot in the time domain.
  • the last time domain symbol in the time slot is the GP (Guard period, protection interval) symbol, and the remaining symbols map to PSSCH.
  • the first siderow symbol in this time slot is a repetition of the second siderow symbol.
  • the receiving terminal uses the first siderow symbol as an AGC (Automatic Gain Control) symbol. The symbol on this symbol The data is generally not used for data demodulation.
  • PSSCH occupies K sub-channels in the frequency domain, and each sub-channel includes N consecutive PRBs.
  • PSSCH is used to carry second-order SCI and data information.
  • the second-order SCI uses Polar coding and fixed QPSK (Quadrature Phase Shift Keying) modulation.
  • the data part of PSSCH uses LDPC (Low Density Parity Check, low-density parity check code), and the highest modulation order supported is 256QAM (Quadrature Amplitude Modulation, quadrature amplitude modulation).
  • PSSCH supports up to two stream transmissions, and uses a unit precoding matrix to map data on two layers to two antenna ports. Only one TB can be sent in one PSSCH.
  • the modulation symbols sent by the second-order SCI on the two streams are exactly the same. This design can ensure the performance of the second-order SCI under high correlation channels. reception performance.
  • the OFDM symbols available in the time slots where different transmissions of a PSSCH are located Changes may occur, as shown in Figure 12. If calculated according to the actual number of OFDM symbols in a time slot Q′ SCI2 may be different due to the different number of symbols available for PSSCH transmission in a time slot, and changes in Q′ SCI2 will cause changes in the size of the TB carried by PSSCH, as described below.
  • PSSCH DMRS Demodulation Reference Signal, demodulation reference signal
  • PT-RS Phase-Tracking Reference Signal, phase tracking reference signal
  • the code rate of the second-order SCI can be dynamically adjusted within a certain range.
  • the specific code rate used is indicated by the first-order SCI, so even after the code rate changes, the receiving end does not need to perform the second-order SCI.
  • the modulation symbols of the second-order SCI are mapped from the symbol where the first PSSCH DMRS is located in the frequency domain first and then the time domain.
  • the second-order SCI is mapped to the RE not occupied by the DMRS on the OFDM symbol where the DMRS is located.
  • the data part of PSSCH in a resource pool can use multiple different MCS (Modulation and Coding Scheme, modulation and coding strategy) tables, including conventional 64QAM MCS table, 256QAM MCS table, and low spectrum efficiency 64QAM MCS table, and in one transmission
  • MCS Modulation and Coding Scheme, modulation and coding strategy
  • the specific MCS table used in the SCI is indicated by the "MCS table indication" field in the first-level SCI.
  • PAPR Peak-to-Average Power Ratio, peak-to-average ratio
  • PSSCH In order to control PAPR (Peak-to-Average Power Ratio, peak-to-average ratio), PSSCH must use continuous PRB transmission. Since the sub-channel is the minimum frequency domain resource granularity of PSSCH, this requires PSSCH to occupy continuous sub-channels.
  • the carrier aggregation supported by SL requires the terminal device to independently perform SL sensing on each carrier component, which requires the terminal device to include multiple carrier components or even all possible supported carrier components when sensing and receiving SL.
  • the terminal device taking into account the half-duplex problem of the terminal device (the terminal device cannot receive when sending and cannot send when receiving), it will have a greater impact on the perception/reception effect.
  • terminal equipment independently selects resources on each carrier component, and the time gap between the resources selected on each carrier component varies. Although the system capacity and peak rate can be improved, the delay cannot be guaranteed.
  • this application proposes a SL communication method.
  • the sending end sends at least one SL transmission information on other carriers on a certain carrier, so that the receiving end can learn the SL data on other carriers without sensing/receiving SL data on other carriers.
  • SL delivery status
  • Figure 14 shows a flow chart of an SL communication method provided by an embodiment of the present application. This method can be applied to the network architecture shown in Figure 1. The method can include the following steps:
  • Step 1410 The first terminal sends first information on the first carrier.
  • the first information is used to indicate the SL transmission situation on at least one second carrier.
  • the first carrier and the second carrier are different carriers.
  • the first carrier can be any carrier, and the first carrier is used to carry the first information.
  • the second carrier is a carrier different from the first carrier, and the number of the second carrier may be one or multiple (that is, two or more).
  • the first terminal sends first information on the first carrier, and the first information is used to indicate the SL transmission situation on a second carrier. For example, as shown in Figure 15, assuming that CC#1 is the first carrier and CC#2 is the second carrier, the first terminal sends first information on CC#1, and the first information is used to indicate CC#2 SL delivery status on the.
  • the first terminal sends first information on the first carrier, and the first information is used to indicate SL transmission conditions on at least two second carriers. For example, as shown in Figure 15, assuming that CC#1 is the first carrier, CC#2, CC#3, and CC#4 are all second carriers, and the first terminal sends the first information on CC#1, the The first information is used to indicate the SL transmission status on CC#2, CC#3 and CC#4.
  • the first information includes at least one of the following: an index list of second carriers in an activated state; a BWP (Band Width Part, partial bandwidth) index corresponding to at least one second carrier; The resource pool index; the time domain offset corresponding to at least one second carrier; the frequency domain offset corresponding to at least one second carrier; the SL transmission resource reservation period corresponding to at least one second carrier; at least one second carrier Corresponding parameter set; resource pool information available on at least one second carrier.
  • the above index can also be called ID (Identifier, identifier), and the two have the same meaning.
  • the first terminal sends first information on the first carrier, and the first information is used to indicate an index list of the second carrier in an activated state.
  • the first terminal sends first information on the first carrier, and the first information is used to indicate the BWP index corresponding to at least one second carrier.
  • the above BWP is a subset of the entire bandwidth, and each BWP is a set of continuous PRBs (Physical Resource Blocks) under a given carrier and a given Numerology.
  • the first terminal sends first information on the first carrier, and the first information is used to indicate the resource pool index corresponding to at least one second carrier.
  • the resource pool is a collection of resources
  • the resource pool of the sidelink link is a collection of time-frequency resources used for sidelink transmission.
  • the first terminal sends first information on the first carrier, and the first information is used to indicate the time domain offset corresponding to at least one second carrier.
  • the first information is used to indicate the time domain offset corresponding to at least one second carrier.
  • CC#1 is the first carrier
  • CC#2, CC#3, and CC#4 are all second carriers.
  • the above time domain offset corresponding to the second carrier refers to the offset between the time domain starting position corresponding to the second carrier and the time domain starting position corresponding to the first carrier.
  • the first terminal sends first information on the first carrier, and the first information is used to indicate the frequency domain offset corresponding to at least one second carrier.
  • the first information is used to indicate the frequency domain offset corresponding to at least one second carrier.
  • CC#1 is the first carrier
  • CC#2, CC#3, and CC#4 are all second carriers.
  • the above-mentioned frequency domain offset corresponding to the second carrier refers to the offset between the frequency domain starting position corresponding to the second carrier and the frequency domain starting position corresponding to the first carrier.
  • the first terminal sends first information on the first carrier, and the first information is used to indicate the SL transmission resource reservation period corresponding to at least one second carrier.
  • the above-mentioned transmission resource reservation period may be set according to the TB (Transport Block) transmission interval.
  • the first terminal sends first information on the first carrier, and the first information is used to indicate a parameter set corresponding to at least one second carrier.
  • the above parameter set includes sub-carrier space (Sub-Carrier Space, SCS).
  • the first terminal sends first information on the first carrier, and the first information is used to indicate available resource pool information on at least one second carrier.
  • the first information is also used to indicate the transmission situation on the first carrier.
  • the first information includes at least one of the following: the index of the first carrier, the BWP index corresponding to the first carrier, the resource pool index corresponding to the first carrier, the SL transmission resource reservation period corresponding to the first carrier, the first The parameter set corresponding to the carrier and the resource pool information available on the first carrier.
  • the above index list of the second carrier in the activated state may also be an index list of the carriers in the activated state.
  • the index list of carriers in the active state includes: the index of the second carrier in the active state and the index of the first carrier.
  • the above-mentioned first information also includes an index list of all carriers.
  • the index list of all carriers includes the index of the carrier in the active state and the index of the carrier in the inactive state.
  • the number of first carriers is one or more.
  • the number of first carriers is one. As shown in Figure 15, there are four carriers CC#1, CC#2, CC#3 and CC#4 in SL communication, where the first carrier is CC#1. , then the second carrier is one of CC#2, CC#3 and CC#4.
  • the first terminal sends first information on CC#1, and the first information is used to indicate the SL transmission situation on at least one carrier among CC#2, CC#3 and CC#4.
  • first carriers there are multiple first carriers. As shown in Figure 15, there are four carriers CC#1, CC#2, CC#3 and CC#4 in SL communication, where the first carrier is CC#. 1 and CC#2, then the second carrier is one of CC#3 and CC#4.
  • the first terminal sends the first information on CC#1, and the first terminal also sends the first information on CC#2.
  • the first information is used to indicate the SL transmission situation on at least one carrier of CC#3 and CC#4. .
  • the first carrier is preconfigured or configured by the network device or anchor terminal.
  • Preconfiguration refers to preconfiguring the first carrier in the first terminal.
  • CC#1, CC#2, CC#3 and CC#4 there are four carriers CC#1, CC#2, CC#3 and CC#4 in SL communication, and the network device or anchor terminal configures CC#1 as the first carrier.
  • the first carrier supports semi-static changes, or supports dynamic changes.
  • the first carrier supports semi-static changes. For example, as shown in Figure 15, the first terminal determines the first carrier to be CC#1 based on the first configuration information, and the first terminal determines the first carrier to be CC# based on the second configuration information. 2. Before the first terminal receives the second configuration information, CC#1 is always used as the first carrier. After receiving the second configuration information, the first terminal changes the first carrier from CC#1 to CC#2.
  • the first carrier supports dynamic changes. For example, as shown in Figure 15, in SL communication, the first carrier changes dynamically among CC#1, CC#2, CC#3 and CC#4.
  • the first terminal may determine the first carrier by itself, and the first carrier determined by the first terminal may change dynamically.
  • the first carrier is the primary carrier.
  • the main carrier may also be called an anchor carrier.
  • the first terminal sends first information on the primary carrier, and the first information is used to indicate the SL transmission situation on at least one second carrier, and the primary carrier and the second carrier are different carriers.
  • the number of primary carriers is one or more.
  • the number of main carriers is one. As shown in Figure 15, there are four carriers CC#1, CC#2, CC#3 and CC#4 in SL communication. Among them, the main carrier is CC#1, then The second carrier is one of CC#2, CC#3 and CC#4. The first terminal sends first information on CC#1, and the first information is used to indicate the SL transmission situation on at least one carrier among CC#2, CC#3 and CC#4.
  • the number of main carriers is multiple. As shown in Figure 15, there are four carriers CC#1, CC#2, CC#3 and CC#4 in SL communication, where the main carriers are CC#1 and CC#2, then the second carrier is one of CC#3 and CC#4.
  • the first terminal sends first information on CC#1 and CC#2 respectively, and the first information is used to indicate the SL transmission situation on at least one carrier of CC#3 and CC#4.
  • the primary carrier is preconfigured or configured by the network device or anchor terminal.
  • CC#1, CC#2, CC#3, and CC#4 there are four carriers CC#1, CC#2, CC#3, and CC#4 in SL communication, and CC#1 is preconfigured as the main carrier.
  • CC#1, CC#2, CC#3 and CC#4 there are four carriers CC#1, CC#2, CC#3 and CC#4 in SL communication, and the network device or anchor terminal configures CC#1 as the main carrier.
  • the primary carrier supports semi-static changes, or supports dynamic changes.
  • the main carrier supports semi-static changes. For example, as shown in Figure 15, the first terminal determines that the main carrier is CC#1 based on the first configuration information, and the first terminal determines that the main carrier is CC#2 based on the second configuration information. Before receiving the second configuration information, the first terminal always uses CC#1 as the main carrier. After receiving the second configuration information, the first terminal changes the primary carrier from CC#1 to CC#2.
  • the main carrier supports dynamic changes. For example, as shown in Figure 15, in SL communication, the main carrier changes dynamically among CC#1, CC#2, CC#3 and CC#4.
  • the first terminal may determine the main carrier by itself, and the main carrier determined by the first terminal may change dynamically.
  • the first information is carried in the SCI, or in MAC CE (MAC Control Element, Media Access Control Unit) signaling, or in PC5-RRC (Radio Resource Control, wireless) based on the PC5 interface. resource control) signaling.
  • MAC CE MAC Control Element, Media Access Control Unit
  • PC5-RRC Radio Resource Control, wireless
  • the above-mentioned SCI may be the first-stage SCI (1st-stage-SCI) or the second-stage SCI (2st-stage-SCI), which is not limited in this application.
  • the first information is carried in the SCI carried on the PSCCH channel, or the first information is carried in the MAC CE signaling carried on the PSSCH channel, or in the PC5-RRC signaling based on the PC5 interface.
  • the SL transmission situation on the second carrier includes the SL transmission situation of the first terminal on the second carrier; and/or, at least one other terminal other than the first terminal is on the second carrier. SL delivery situation.
  • CC#1 is the first carrier
  • CC#2 is the second carrier. example.
  • the SL transmission situation on the second carrier includes the SL transmission situation of the first terminal on the second carrier, then the SL transmission situation on the second carrier includes the SL transmission situation of the first terminal on CC#2 .
  • the SL transmission situation on the second carrier includes the SL transmission situation on the second carrier by at least one other terminal except the first terminal, then the SL transmission situation on the second carrier may include the third terminal on the second carrier.
  • the third terminal is a terminal device different from the first terminal.
  • the SL transmission situation on the second carrier includes: the SL transmission situation of the first terminal on the second carrier, and the SL transmission situation of at least one other terminal other than the first terminal on the second carrier. Then the SL transmission situation on the second carrier includes: the SL transmission situation of the first terminal on CC#2, and the SL transmission situation of the third terminal on CC#2, and the first terminal and the third terminal are on CC#2.
  • the time-frequency resources occupied by sending SL data do not overlap.
  • the first terminal and the third terminal do not send SL data on the same carrier.
  • the first terminal sends SL data on CC#1 and CC#2
  • the third terminal sends SL data on CC#. 3 where the first carrier is CC#1, then the SL transmission situation on the second carrier includes: the SL transmission situation of the first terminal on CC#2 and the SL transmission situation of the third terminal on CC#3 Condition.
  • the SL transmission situation on the second carrier includes: the SL transmission situation of the first terminal on at least one second carrier, and/or at least one other than the first terminal. SL transmission status of other terminals on at least one second carrier.
  • the SL transmission situation on the second carrier includes the SL transmission situation of the first terminal on at least one second carrier, then the SL transmission situation on the second carrier includes the first terminal on CC#2, CC SL transmission situation on at least one carrier in #3 and CC#4.
  • the SL transmission situation on the second carrier includes the SL transmission situation of at least one other terminal except the first terminal on at least one second carrier, then the SL transmission situation on the second carrier includes the third The terminal’s SL transmission situation on at least one carrier among CC#2, CC#3 and CC#4.
  • the SL transmission situation on the second carrier includes the SL transmission situation of the first terminal on at least one second carrier, and at least one other terminal other than the first terminal on at least one second carrier.
  • the SL transmission situation on the second carrier includes: the SL transmission situation of the first terminal on at least one carrier among CC#2, CC#3 and CC#4, and the SL transmission situation of the third terminal on CC#2, CC#2, CC#4.
  • the first terminal can learn the SL transmission situation of at least one other terminal other than the first terminal on the second carrier through sensing, or it can also send at least one other terminal other than the first terminal on the second carrier.
  • the SL sending situation is configured in the first terminal, and this application does not limit this.
  • the technical solution provided by the embodiments of this application uses the sending end to send the first information on a certain carrier.
  • the first information is used to indicate the SL transmission status on other carriers except the above-mentioned carriers.
  • the receiving end does not need to perform this on every carrier. Sensing/decoding/blind detection, only by receiving the above carrier and the first information, the SL transmission situation on other carriers can be clarified, which greatly reduces the complexity of receiving SL data at the receiving end when operating on multi-carriers, and reduces the sensing steps. , reducing the complexity of blind inspection and further saving power.
  • Figure 16 shows a flow chart of an SL communication method provided by another embodiment of the present application. This method can be applied to the network architecture shown in Figure 1, and the method can include at least one of the following steps 1410 to 1430:
  • Step 1410 The first terminal sends first information on the first carrier.
  • the first information is used to indicate the SL transmission situation on at least one second carrier.
  • the first carrier and the second carrier are different carriers.
  • the above-mentioned carrier is used as the first carrier
  • the second carrier is a carrier among the n carriers except the first carrier
  • n is an integer greater than 1.
  • the first terminal sends the first information on CC#1, and the first information Used to indicate the SL transmission situation on at least one carrier among CC#2, CC#3 and CC#4; and the first terminal uses CC#2 as the first carrier, and the second carrier is CC#1, CC#3 and CC
  • the first terminal sends the first information on CC#2, and the first information is used to indicate the SL transmission situation on at least one carrier among CC#1, CC#3 and CC#4; and the first The terminal uses CC#3 as the first carrier, and the second carrier is one of CC#1, CC#2, and CC#4.
  • the first terminal sends the first information on CC#3, and the first information is used to indicate CC SL transmission situation on at least one carrier among #1, CC#2 and CC#4; and the first terminal uses CC#4 as the first carrier, and the second carrier is among CC#1, CC#2 and CC#3 One carrier, the first terminal sends the first information on CC#4, and the first information is used to indicate the SL transmission situation on at least one carrier among CC#1, CC#2 and CC#3.
  • the above-mentioned carrier is used as the first carrier
  • the second carrier is a carrier among the n carriers except the first carrier
  • n is an integer greater than 1.
  • the first terminal sends first information on the first carrier, and the first information is used to indicate the SL transmission status on the n carriers (including the first carrier and at least one second carrier).
  • each One carrier serves as the first carrier.
  • the first terminal sends first information on the first carrier.
  • the first information is used to indicate the SL transmission status on the above four carriers. That is, the first terminal uses CC#1 as the first carrier, and the first terminal sends the first information on CC#1, and the first information is used to indicate CC#1, CC#2, CC#3, and CC#4.
  • the first terminal uses CC#2 as the first carrier, the first terminal sends the first information on CC#1, and the first information is used to indicate CC#1, CC#2, CC#3 and CC
  • all carriers are used as the first carrier to send the first information, and the receiving end receives the first information sent on any carrier to obtain the SL transmission status on other carriers, without limiting a certain carrier as the first carrier. .
  • one carrier among the n carriers is used as the first carrier
  • the second carrier is a carrier among the n carriers except the first carrier
  • n is an integer greater than 1.
  • the first terminal sends the first information on CC#1, and the first information Used to indicate the SL transmission situation on at least one carrier among CC#2, CC#3 and CC#4; or the first terminal uses CC#2 as the first carrier and the second carrier is CC#1, CC#3 and CC
  • the first terminal sends the first information on CC#2, and the first information is used to indicate the SL transmission situation on at least one carrier among CC#1, CC#3 and CC#4; or the first The terminal uses CC#3 as the first carrier, and the second carrier is one of CC#1, CC#2, and CC#4.
  • the first terminal sends the first information on CC#3, and the first information is used to indicate CC SL transmission situation on at least one carrier among #1, CC#2, and CC#4; or the first terminal uses CC#4 as the first carrier, and the second carrier is among CC#1, CC#2, and CC#3 One carrier, the first terminal sends the first information on CC#4, and the first information is used to indicate the SL transmission situation on at least one carrier among CC#1, CC#2 and CC#3.
  • the first information is only sent on one first carrier, and the receiving end only needs the first information on the first carrier to obtain the SL transmission status on other carriers. Compared with sending each carrier as The first carrier sends the first information, saving signaling resources.
  • the information sent on the first carrier carries first indication information, and the first indication information is used to indicate that the carrier where the above information is located is the first carrier.
  • the first carrier is CC#1 and the second carrier is CC#2 , one carrier in CC#3 and CC#4.
  • the information sent on CC#1 carries first indication information, and the first indication information is used to indicate that the carrier CC#1 where the above information is located is the first carrier.
  • the first carrier is the main carrier, and the first indication information is used to indicate that the carrier CC#1 where the above information is located is the main carrier.
  • the first indication information can be represented by 1 bit. For example, 0 means that the carrier CC#1 where the above information is located is not the first carrier, and 1 means that the carrier CC#1 where the above information is located is the first carrier.
  • the information sent on the first carrier carries indication information indicating that the carrier is the first carrier.
  • the receiving end senses the carrier, it can determine that the carrier is the first carrier, and then receive the first information transmitted on the carrier. Reduced perception steps.
  • the information sent on any carrier carries second indication information, and the second indication information is used to determine the first carrier.
  • the first carrier is CC#1 and the second carrier is CC#2 , one carrier in CC#3 and CC#4.
  • the information sent on any one or more carriers among CC#1, CC#2, CC#3 and CC#4 carries second indication information, and the second indication information is used to indicate that carrier CC#1 is the first carrier.
  • the second indication information may be represented by at least one bit.
  • the second indication information may be the index of the first carrier.
  • Information sent on all carriers carries indication information to indicate the first carrier.
  • the receiving end can determine the first carrier by sensing the indication information on any carrier, thus reducing sensing steps.
  • the first indication information is carried in the SCI, or in MAC CE signaling, or in PC5-RRC signaling based on the PC5 interface.
  • the second indication information is carried in the SCI, or in MAC CE signaling, or in PC5-RRC signaling based on the PC5 interface.
  • the first indication information or the second indication information is updated accordingly.
  • the first terminal sends SL data on four carriers CC#1, CC#2, CC#3 and CC#4, and the first carrier changes from CC#1 to CC#2. Then the first terminal no longer carries the first indication information in the information sent on CC#1, but carries the first indication information in the information sent on CC#2.
  • the first terminal sends SL data on four carriers CC#1, CC#2, CC#3 and CC#4, and the first carrier changes from CC#1 to CC#2. Then the first terminal carries the second indication information in the information sent on any one or more carriers among CC#1, CC#2, CC#3 and CC#4, and the second indication information is the indication carrier CC#1.
  • One carrier is changed to indicate that carrier CC#2 is the first carrier.
  • Step 1420 The second terminal receives SL data sent on at least one second carrier according to the SL sending situation on at least one second carrier.
  • the second terminal receives and decodes the first information sent by the first terminal on CC#1, and learns the SL transmission situation on at least one carrier among CC#2, CC#3 and CC#4 through the first information.
  • the second terminal receives the SL data sent on at least one carrier of CC#2, CC#3 and CC#4 according to the SL transmission situation on at least one carrier of CC#2, CC#3 and CC#4.
  • the second carrier is CC#2.
  • the second terminal receives and decodes the first information sent by the first terminal on CC#1, and learns the SL transmission situation on CC#2 through the first information.
  • the second terminal receives the SL data sent on CC#2 according to the SL sending situation on CC#2.
  • the SL data on CC#2 may be sent by the first terminal, or by at least one other terminal except the first terminal, or by the first terminal and at least one other terminal except the first terminal, This application does not limit this.
  • Step 1430 The second terminal performs resource exclusion and/or resource selection related to the second carrier according to the SL transmission situation of the first terminal on the second carrier.
  • the second terminal receives and decodes the first information sent by the first terminal on CC#1, and learns the SL transmission situation on at least one carrier among CC#2, CC#3 and CC#4 through the first information.
  • the second terminal performs resource exclusion and/or resource related to at least one carrier among CC#2, CC#3 and CC#4 based on the SL transmission situation on at least one carrier among CC#2, CC#3 and CC#4. choose.
  • the second terminal when the second terminal performs resource exclusion related to at least one carrier among CC#2, CC#3, and CC#4, based on the SL transmission situation on at least one carrier among CC#2, CC#3, and CC#4, The resources reserved/occupied on at least one carrier among CC#2, CC#3 and CC#4 are excluded from the set of available candidate resources corresponding to the second terminal.
  • the second terminal when the second terminal performs resource selection related to at least one carrier among CC#2, CC#3, and CC#4, based on the SL transmission situation on at least one carrier among CC#2, CC#3, and CC#4, The resources reserved/occupied on at least one carrier among CC#2, CC#3 and CC#4 are excluded from the set of available candidate resources corresponding to the second terminal, and then resource selection is performed in the set of corresponding available candidate resources.
  • step 1420 and step 1430 can be executed either one or both, and this application does not limit this; step 1420 can be executed before step 1430, after step 1430, or at the same time. This application does not limit this.
  • the technical solution provided by the embodiments of this application uses the sending end to send the first information on a certain carrier.
  • the first information is used to indicate the SL transmission status on other carriers except the above-mentioned carriers.
  • the receiving end does not need to perform this on every carrier. Sensing/decoding/blind detection, only by receiving the above carrier and the first information, the SL transmission situation on other carriers can be clarified, which greatly reduces the complexity of receiving SL data at the receiving end when operating on multi-carriers, and reduces the sensing steps. , reducing the complexity of blind inspection and further saving power.
  • the receiving end can receive SL data on other carriers except the above-mentioned carriers according to the SL transmission situation on other carriers except the above-mentioned carriers, or perform resource exclusion/resource selection with other carriers except the above-mentioned carriers, reducing perception. steps, reducing the complexity of blind inspection and further saving power.
  • the above-mentioned steps performed by the first device can be independently implemented as a SL communication method on the first device side; and the above-mentioned steps performed by the second device can be independently implemented as an SL communication method on the second device side.
  • FIG. 17 shows a block diagram of an SL communication device provided by an embodiment of the present application.
  • the device has the function of realizing the above SL communication method example, and the function can be realized by hardware, or can also be realized by hardware executing corresponding software.
  • the device can be the terminal equipment introduced above, or can be set in the terminal equipment.
  • the device 1700 may include: a sending module 1710.
  • the apparatus 1700 includes:
  • Sending module 1710 configured to send first information on a first carrier, where the first information is used to indicate the SL transmission situation on at least one second carrier, where the first carrier and the second carrier are different carriers.
  • the first information includes at least one of the following:
  • Resource pool information available on the at least one second carrier is available on the at least one second carrier.
  • the number of the first carriers is one or more.
  • the first carrier is preconfigured or configured by a network device or anchor terminal.
  • the first carrier supports semi-static changes, or supports dynamic changes.
  • the first carrier is the main carrier of the first terminal.
  • the information sent on the first carrier carries first indication information, and the first indication information is used to indicate that the carrier where the information is located is the first carrier;
  • the information sent on any carrier carries second indication information, and the second indication information is used to determine the first carrier.
  • the first information is carried in the sidelink control information SCI, or in the media access control unit MAC CE signaling, or in the radio link control PC5-RRC signaling based on the PC5 interface. middle.
  • n is an integer greater than 1.
  • one carrier among n carriers is used as the first carrier, the second carrier is a carrier among the n carriers except the first carrier, and n is greater than 1. integer.
  • the SL transmission situation on the second carrier includes:
  • the SL transmission situation of at least one other terminal except the first terminal on the second carrier is not limited.
  • the technical solution provided by the embodiments of this application uses the sending end to send the first information on a certain carrier.
  • the first information is used to indicate the SL transmission status on other carriers except the above-mentioned carriers.
  • the receiving end does not need to send the first information every time. Sensing/decoding/blind detection is performed on each carrier. Only by receiving the above carriers and the first information, the SL transmission situation on other carriers can be clarified, which greatly reduces the complexity of receiving SL data at the receiving end when operating on multiple carriers. , reducing the sensing steps, reducing the complexity of blind detection, and further saving power.
  • FIG. 18 shows a block diagram of an SL communication device provided by another embodiment of the present application.
  • the device has the function of realizing the above SL communication method example, and the function can be realized by hardware, or can also be realized by hardware executing corresponding software.
  • the device can be the terminal equipment introduced above, or can be set in the terminal equipment.
  • the device 1800 may include: a first receiving module 1810.
  • the apparatus 1800 includes:
  • the first receiving module 1810 is configured to receive the first information sent by the first terminal on the first carrier, where the first information is used to indicate the SL transmission situation on at least one second carrier, the first carrier and the The second carrier is a different carrier.
  • the first information includes at least one of the following:
  • Resource pool information available on the at least one second carrier is available on the at least one second carrier.
  • the number of the first carriers is one or more.
  • the first carrier is preconfigured or configured by a network device or anchor terminal.
  • the first carrier supports semi-static changes, or supports dynamic changes.
  • the first carrier is the main carrier of the first terminal.
  • the information sent on the first carrier carries first indication information, and the first indication information is used to indicate that the carrier where the information is located is the first carrier;
  • the information sent on any carrier carries second indication information, and the second indication information is used to determine the first carrier.
  • the first information is carried in the sidelink control information SCI, or in the media access control unit MAC CE signaling, or in the radio link control PC5-RRC signaling based on the PC5 interface. middle.
  • n is an integer greater than 1.
  • one carrier among n carriers is used as the first carrier, the second carrier is a carrier among the n carriers except the first carrier, and n is greater than 1. integer.
  • the SL transmission situation on the second carrier includes:
  • the receiving module 1810 is further configured to receive SL data sent on the at least one second carrier according to the SL sending situation on the second carrier;
  • the apparatus 1800 further includes: a processing module 1820, configured to perform resource exclusion and/or resource selection related to the at least one second carrier according to the SL transmission situation on the second carrier.
  • the terminal device 1900 may include: a processor 1901, a transceiver 1902, and a memory 1903. Among them, the processor 1901 is used to implement the functions of the above-mentioned processing module, and the transceiver 1902 is used to implement the functions of the above-mentioned sending module and receiving module.
  • the processor 1901 includes one or more processing cores.
  • the processor 1901 executes various functional applications and information processing by running software programs and modules.
  • the transceiver 1902 may include a receiver and a transmitter.
  • the receiver and the transmitter may be implemented as the same wireless communication component, and the wireless communication component may include a wireless communication chip and a radio frequency antenna.
  • Memory 1903 may be connected to processor 1901 and transceiver 1902.
  • the memory 1903 can be used to store a computer program executed by the processor, and the processor 1901 is used to execute the computer program to implement each step in the above method embodiment.
  • the transceiver 1902 is used to send the first information on the first carrier, and the first information is used to indicate at least one second carrier.
  • the first carrier and the second carrier are different carriers.
  • the transceiver 1902 is used to receive the first information sent by the first terminal on the first carrier, and the first information is used to indicate at least In the case of SL transmission on a second carrier, the first carrier and the second carrier are different carriers.
  • memory may be implemented by any type of volatile or non-volatile storage device, or combination thereof, including but not limited to: magnetic or optical disks, electrically erasable programmable only Read memory, erasable programmable read-only memory, static ready-access memory, read-only memory, magnetic memory, flash memory, programmable read-only memory.
  • Embodiments of the present application also provide a computer-readable storage medium.
  • a computer program is stored in the storage medium.
  • the computer program is used to be executed by a processor to implement the SL communication executed by the first terminal or the second terminal.
  • the computer-readable storage medium may include: ROM (Read-Only Memory), RAM (Random-Access Memory), SSD (Solid State Drives, solid state drive) or optical disk, etc.
  • random access memory can include ReRAM (Resistance Random Access Memory, resistive random access memory) and DRAM (Dynamic Random Access Memory, dynamic random access memory).
  • Embodiments of the present application also provide a chip, which includes programmable logic circuits and/or program instructions. When the chip is running, it is used to implement the SL communication method executed by the first terminal or the second terminal.
  • Embodiments of the present application also provide a computer program product.
  • the computer program product includes computer instructions.
  • the computer instructions are stored in a computer-readable storage medium.
  • the processor reads and executes the instructions from the computer-readable storage medium.
  • the computer instructions are used to implement the SL communication method executed by the first terminal or the second terminal.
  • the "instruction” mentioned in the embodiments of this application may be a direct instruction, an indirect instruction, or an association relationship.
  • a indicates B which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B. relation.
  • correlate can mean that there is a direct correspondence or indirect correspondence between the two, it can also mean that there is an associated relationship between the two, or it can mean indicating and being instructed, configuration and being. Configuration and other relationships.
  • predefined can be realized by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in devices (for example, including terminal devices and network devices).
  • devices for example, including terminal devices and network devices.
  • predefined can refer to what is defined in the protocol.
  • the "protocol” may refer to a standard protocol in the communication field, which may include, for example, LTE protocol, NR protocol, and related protocols applied in future communication systems. This application is not limited to this.
  • the "plurality” mentioned in this article means two or more than two.
  • “And/or” describes the relationship between related objects, indicating that there can be three relationships.
  • a and/or B can mean: A exists alone, A and B exist simultaneously, and B exists alone.
  • the character “/” generally indicates that the related objects are in an "or” relationship.
  • step numbers described in this article only illustrate a possible execution sequence between the steps.
  • the above steps may not be executed in the numbering sequence, such as two different numbers.
  • the steps are executed simultaneously, or two steps with different numbers are executed in the reverse order as shown in the figure, which is not limited in the embodiments of the present application.
  • Computer-readable media includes computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • Storage media can be any available media that can be accessed by a general purpose or special purpose computer.

Abstract

本申请涉及通信技术领域。本申请公开了一种侧行链路SL通信方法、装置、设备、存储介质及程序产品。上述通信方法包括:第一终端在第一载波上发送第一信息,第一信息用于指示至少一个第二载波上的SL发送情况,第一载波和第二载波是不同的载波。通过发送端在某个载波上发送第一信息,第一信息用于指示除上述载波外其他载波上的SL发送情况,接收端无需在每个载波上都进行感知/解码/盲检,仅通过接收上述载波和第一信息,就可以明确其他载波上的SL发送情况,大大降低了接收端在多载波操作时,接收SL数据的复杂度,减少了感知步骤,降低了盲检复杂度,进一步节约了电能。

Description

SL通信方法、装置、设备、存储介质及程序产品 技术领域
本申请实施例涉及通信技术领域,特别涉及一种SL(Sidelink,侧行链路)通信方法、装置、设备、存储介质及程序产品。
背景技术
SL通信所支持的载波聚合要求UE(User Equipment,用户设备)在每个载波分量上独立进行SL感知和资源选择。
相关技术中,针对多载波SL通信,UE需要接收所有支持的载波分量上的SL数据后,才能确定其中的关联性。
发明内容
本申请实施例提供了一种SL通信方法、装置、设备、存储介质及程序产品。所述技术方案如下:
根据本申请实施例的一个方面,提供了一种SL通信方法,所述方法包括:
第一终端在第一载波上发送第一信息,所述第一信息用于指示至少一个第二载波上的SL发送情况,所述第一载波和所述第二载波是不同的载波。
根据本申请实施例的一个方面,提供了一种SL通信方法,所述方法包括:
第二终端接收第一终端在第一载波上发送的第一信息,所述第一信息用于指示至少一个第二载波上的SL发送情况,所述第一载波和所述第二载波是不同的载波。
根据本申请实施例的一个方面,提供了一种SL通信装置,所述装置包括:
发送模块,用于在第一载波上发送第一信息,所述第一信息用于指示至少一个第二载波上的SL发送情况,所述第一载波和所述第二载波是不同的载波。
根据本申请实施例的一个方面,提供了一种SL通信装置,所述装置包括:
接收模块,用于接收第一终端在第一载波上发送的第一信息,所述第一信息用于指示至少一个第二载波上的SL发送情况,所述第一载波和所述第二载波是不同的载波。
根据本申请实施例的一个方面,提供了一种终端设备,所述终端设备包括处理器和存储器,所述存储器中存储有计算机程序,所述处理器执行所述计算机程序以实现上述第一终端侧的SL通信方法,或者上述第二终端侧的SL通信方法。
根据本申请实施例的一个方面,提供了一种计算机可读存储介质,所述存储介质中存储有计算机程序,所述计算机程序用于被处理器执行,以实现上述第一终端侧的SL通信方法,或者上述第二终端侧的SL通信方法。
根据本申请实施例的一个方面,提供了一种芯片,所述芯片包括可编程逻辑电路和/或程序指令,当所述芯片运行时,用于实现上述第一终端侧的SL通信方法,或者上述第二终端侧的SL通信方法。
根据本申请实施例的一个方面,提供了一种计算机程序产品,所述计算机程序产品包括计算机指令,所述计算机指令存储在计算机可读存储介质中,处理器从所述计算机可读存储介质读取并执行所述计算机指令,以实现上述第一终端侧的SL通信方法,或者上述第二终端侧的SL通信方法。
本申请实施例提供的技术方案可以包括如下有益效果:
通过发送端在某个载波上发送第一信息,第一信息用于指示除上述载波外其他载波上的SL发送情况,使得接收端无需接收其他载波上的信息,即可获知其他载波上的SL发送情况,大大降低了接收端在多载波操作时,接收SL发送信息的复杂度,接收端无需在每个载波上都进行感知/解码/盲检,仅通过接收上述载波和第一信息,就可以明确其他载波上的SL发送情况,减少了感知步骤,降低了盲检复杂度,进一步节约了电能。
附图说明
图1是本申请一个实施例提供的网络架构的示意图;
图2是本申请一个实施例提供的网络覆盖内侧行通信的示意图;
图3是本申请一个实施例提供的部分网络覆盖侧行通信的示意图;
图4是本申请一个实施例提供的网络覆盖外侧行通信的示意图;
图5是本申请一个实施例提供的有中央控制节点的侧行通信的示意图;
图6是本申请一个实施例提供的单播传输的示意图;
图7是本申请一个实施例提供的组播传输的示意图;
图8是本申请一个实施例提供的广播传输的示意图;
图9是本申请一个实施例提供的资源选取的示意图;
图10是本申请一个实施例提供的基于侦听的资源选择、资源预约的时序示意图;
图11是本申请一个实施例提供的NR-V2X中的时隙结构的示意图;
图12的本申请一个实施例提供的PSSCH传输示意图;
图13是本申请一个实施例提供的第二阶SCI映射方式的示意图;
图14是本申请一个实施例提供的SL通信方法的流程图;
图15是本申请一个实施例提供的多载波SL发送情况的示意图;
图16是本申请另一个实施例提供的SL通信方法的流程图;
图17是本申请一个实施例提供的SL通信装置的框图;
图18是本申请另一个实施例提供的SL通信装置的框图;
图19是本申请一个实施例提供的终端设备的结构示意图。
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,下面将结合附图对本申请实施方式作进一步地详细描述。
本申请实施例描述的网络架构以及业务场景是为了更加清楚地说明本申请实施例的技术方案,并不构成对本申请实施例提供的技术方案的限定,本领域普通技术人员可知,随着网络架构的演变和新业务场景的出现,本申请实施例提供的技术方案对于类似的技术问题,同样适用。
请参考图1,其示出了本申请一个实施例提供的网络架构的示意图。该网络架构可以包括:核心网11、接入网12和终端设备13。
核心网11中包括若干核心网设备。核心网设备的功能主要是提供用户连接、对用户的管理以及对业务完成承载,作为承载网络提供到外部网络的接口。例如,5G(5th Generation,第五代移动通信技术)NR(New Radio,新空口)系统的核心网中可以包括AMF(Access and Mobility Management Function,接入和移动性管理功能)实体、UPF(User Plane Function,用户平面功能)实体和SMF(Session Management Function,会话管理功能)实体等设备。
接入网12中包括若干接入网设备14。5G NR系统中的接入网可以称为NG-RAN(New Generation-Radio Access Network,新一代无线接入网)。接入网设备14是一种部署在接入网12中用以为终端设备13提供无线通信功能的装置。接入网设备14可以包括各种形式的宏基站,微基站,中继站,接入点等等。在采用不同的无线接入技术的系统中,具备接入网设备功能的设备的名称可能会有所不同,例如在5G NR系统中,称为gNodeB或者gNB。随着通信技术的演进,“接入网设备”这一名称可能会变化。为方便描述,本申请实施例中,上述为终端设备13提供无线通信功能的装置统称为接入网设备。
终端设备13的数量通常为多个,每一个接入网设备14所管理的小区内可以分布一个或多个终端设备13。终端设备13可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其他处理设备,以及各种形式的用户设备(UE)、移动台(Mobile Station,MS)等等。为方便描述,上面提到的设备统称为终端设备。接入网设备14与核心网设备之间通过某种空中技术相互通信,例如5G NR系统中的NG接口。接入网设备14与终端设备13之间通过某种空中技术互相通信,例如Uu接口。在本申请中,通常将“终端设备”和“UE”混用,但本领域技术人员可以理解,两者通常表达同一含义。
终端设备13和终端设备13(例如车载设备与其它设备(如其它车载设备、手机、RSU(Road Side Unit,路侧单元)等))之间可以通过直连通信接口(如PC5接口)互相通信,相应地,该基于直连通信接口建立的通信链路可以称为直连链路或SL。SL传输即为终端设备与终端设备之间通过侧行链路直接进行通信数据传输,不同于传统的蜂窝系统中通信数据通过接入网设备接收或者发送,SL传输具有时延短、开销小等特点,适合用于地理位置接近的两个终端设备(如车载设备和地理位置接近的其它周边设备)之间的通信。需要说明的是,在图1中,仅以V2X(vehicle to everything,车联网)场景下的车对车通信为示例,SL技术可以应用于各种终端设备之间直接进行通信的场景。或者说,本申请中的终端设备是指任意一种利用SL技术通信的设备。
本申请实施例中的“5G NR系统”也可以称为5G系统或者NR系统,但本领域技术人员可以理解其含义。本申请实施例描述的技术方案可以适用于5G NR系统,也可以适用于5G NR系统后续的演进系统。
在介绍本申请技术方案之前,先对本申请涉及的一些背景技术知识进行介绍说明。以下相关技术作为可选方案与本申请实施例的技术方案可以进行任意结合,其均属于本申请实施例的保护范围。本申请实施例包括以下内容中的至少部分内容。
1.不同网络覆盖环境下的侧行通信
在侧行通信中,根据进行通信的终端设备所处的网络覆盖情况,可以分为网络覆盖内侧行通信,部分网络覆盖侧行通信,及网络覆盖外侧行通信。
对于网络覆盖内侧行通信,如图2所示,所有进行侧行通信的终端设备均处于同一接入网设备(如基站)的覆盖范围内,因此上述终端设备均可以通过接收接入网设备的配置信令,基于相同的侧行配置进行侧行通信。
对于部分网络覆盖侧行通信,如图3所示,部分进行侧行通信的终端设备位于接入网设备(如基站)的覆盖范围内,这部分终端设备能够接收到接入网设备的配置信令,而且根据接入网设备的配置进行侧行通信。而位于网络覆盖范围外的终端设备,无法接收接入网设备的配置信令,在这种情况下,网络覆盖范围外的终端设备将根据预配置(pre-Configuration)信息及位于网络覆盖范围内的终端设备发送的PSBCH(Physical Sidelink Broadcast Channel,物理侧行广播信道)中携带的信息确定侧行配置,进行侧行通信。
对于网络覆盖外侧行通信,如图4所示,所有进行侧行通信的终端设备均位于网络覆盖范围外,所有终端设备均根据预配置信息确定侧行配置进行侧行通信。
对于有中央控制节点的侧行通信,如图5所示,多个终端设备(如UE1、UE2、UE3)构成一个通信组,该通信组内具有中央控制节点(如UE1),又可以称为CH UE(Cluster Header UE,组头用户设备),该中央控制节点(如UE1)具有以下功能中的至少之一:负责通信组的建立;组成员的加入/离开;进行资源协调,为其他终端分配侧行传输资源,接收其他终端的侧行反馈信息;与其他通信组进行资源协调等等。
2.D2D/V2X
与传统的蜂窝系统中通信数据通过接入网设备(如基站)接收或者发送的方式不同,设备到设备通信是基于D2D的一种侧行链路传输技术,因此具有更高的频谱效率以及更低的传输时延。车联网系统采用终端设备到终端设备直接通信的方式,3GPP(3rd Generation Partnership Project,第3代合作伙伴计划)中定义了两种传输模式:模式A和模式B。
模式A:终端设备的传输资源是由接入网设备分配的,终端设备根据接入网设备分配的传输资源在侧行链路上进行通信数据的传输,其中,接入网设备既可以为终端设备分配单次传输的传输资源,也可以为终端设备分配半静态传输的传输资源。如图2所示,终端设备位于网络覆盖范围内,接入网设备为终端设备分配侧行传输使用的传输资源。
模式B:终端设备自行在资源池中选取传输资源进行通信数据的传输。具体地,终端设备可以通过侦听的方式在资源池中选取传输资源,或者通过随机选取的方式在资源池中选取传输资源。如图4所示,终端设备位于网络覆盖范围外,终端设备在预配置的资源池中自主选取传输资源进行侧行传输;或者如图2所示,终端设备位于网络覆盖范围内,终端设备在网络配置的资源池中自主选取传输资源进行侧行传输。
上述模式A在LTE-V2X中称为模式3,在NR-V2X中称为模式1;上述模式B在LTE-V2X中称为模式4,在NR-V2X中称为模式2。
3.NR-V2X
在NR-V2X中,终端设备需要支持自动驾驶的功能,因此对终端设备之间数据交互提出了更高的要求,如更高的吞吐量、更低的时延、更高的可靠性、更大的覆盖范围、更灵活的资源分配等。
LTE-V2X中支持广播传输方式,NR-V2X中引入了单播和组播的传输方式。对于单播传输,其接收端只有一个终端设备,如图6所示,UE1、UE2之间进行单播传输。对于组播传输,其接收端是一个通信组内的所有终端设备,或者是在一定传输距离内的所有终端设备,如图7所示,UE1、UE2、UE3和UE4构成一个通信组,其中UE1发送数据,该通信组内的其他终端设备UE2、UE3和UE4都是接收端的终端设备。对于广播传输方式,其接收端是发送端的终端设备周围的任意一个终 端设备,如图8所示,UE1是发送端的终端设备,其周围的其他终端设备UE2-UE6,都是接收端的终端设备。
4.LTE-V2X基于侦听(SL sensing)的资源选择
在LTE-V2X中,支持完全侦听或部分侦听,其中,完全侦听即终端设备可以侦听除了发送数据的时隙之外所有的时隙(或子帧)中其他终端设备发送的数据;而部分侦听(Partial Sensing)是为了终端设备节能,终端设备只需要侦听部分时隙(或子帧),并且根据部分侦听的结果进行资源选取。
当时刻n有新的数据包到达,需要进行资源选取时,终端设备会根据过去1秒中的侦听结果,在[n+T 1,n+T 2]毫秒内进行资源选取,其中T 1<=4;T 2min(prio TX)≤T 2≤100,并且T 1的选取应该大于终端的处理时延,T 2的选取需要在业务的时延要求范围内,例如,如果业务的时延要求是50ms,则20<=T 2<=50,业务的时延要求是100ms,则20<=T 2<=100。
如图9所示,终端设备在选择窗内进行资源选取的过程如下:
(1)终端设备将选择窗内所有可用的资源作为一个集合A。
(2)如果终端设备在侦听窗内某些子帧没有侦听到结果,则排除掉上述子帧在选择窗内对应的子帧上的资源;
(3)如果终端设备侦听窗内检测到PSCCH(Physical Sidelink Control Channel,物理侧行控制信道),测量该PSCCH调度的PSSCH(Physical Sidelink Shared Channel,物理侧行共享信道)的RSRP(Reference Signal Received Power,参考信号接收功率),如果测量的PSSCH-RSRP高于PSSCH-RSRP门限,并且根据该控制信息中预留信息确定的其预留的传输资源与待传输数据是否存在资源冲突,若存在冲突,则将资源在集合A中排除掉。其中,PSSCH-RSRP门限的选取是由检测到的PSCCH中携带的优先级信息和终端设备待传输数据的优先级确定的。
(4)如果集合A中剩余的资源个数小于总资源个数20%,终端设备会提升PSSCH-RSRP的门限3dB,并且重复步骤(1)~(3),直到集合A中剩余的资源个数大于总资源数的20%。
(5)终端设备对集合A中剩余的资源进行S-RSSI(Sidelink Received Signal Strength Indicator,侧行接收信号场强指示)检测,并且按照能量高低进行排序,把能量最低的20%(相对于集合A中的资源个数)资源放入集合B。
(6)终端设备从集合B中等概率地选取一个资源进行数据传输。
5.LTE-V2X中侧行链路多载波发送
在LTE V2X的资源选择模式3和4中,当一个终端设备的侧行链路在一个载波上的发送和其他载波的发送有时域重叠,并且这些载波的发送总功率超过了P_CMAX(终端预定义发送最大总功率),终端设备应当调整发送功率;在多载波的多个侧行链路的发送中,每个发送的SCI(Sidelink Control Information,侧行控制信息)中都包含优先级的信息域,优先级信息域的数值越大,优先级越低,数值越小,优先级越高;终端设备调整优先级最低(优先级数值最大)的侧行链路的发送功率,来保证多载波的发送总功率不超过P_CMAX。如果经过功率调整,终端设备在多载波上的发送总功率仍然超过P_CMAX,终端设备应当丢弃优先级最低(优先级数值最大)的载波上的侧行链路发送;如果发送总功率仍然高于P_CMAX,在剩余载波上按照上述步骤重复操作。当有两个或多个载波上的侧行链路发送,具有相同优先级时,协议不做规范,终端设备自行实现决定调整哪个载波上的侧行链路发送。
6.NR-V2X基于侦听的资源选择
与LTE-V2X模式4类似,NR-V2X模式2的资源选择算法也分为两个主要步骤,即终端设备首先确定候选资源集合,再从候选资源集合中选择资源发送数据。图10中给出了NR V2X中基于侦听的资源选择、资源预约的时序示意图。NR-V2X模式2与LTE-V2X模式4的资源选择机制类似,但有如下几点不同:
NR-V2X中TB(Transport Block,传输块)间的周期性预留可以以资源池为单位激活或去激活,这两种情况决定终端设备收到的第一阶SCI中是否会有资源预留时域,以及终端设备是否要周期性预留已选择的时频资源。这些使得NR-V2X模式2的设计要覆盖激活与去激活周期性预留两种情况。
NR-V2X需要支持大量非周期性业务,而平均SL-RSSI的计算是以一定的时间间隔周期性测量后取平均来计算的,所以NR-V2X模式2取消了LTE-V2X中资源排除后依据平均SL-RSSI对资源进行排序的步骤。
NR-V2X模式2与LTE-V2X模式4相比较更为灵活,比如根据PSSCH和/或PSCCH的SL- RSRP与RSRP阈值比较是可配置的,X*M total中的X可以为{20,35,50}%中的一种,资源预留时域可能的取值包括1~99毫秒,资源侦听窗的长度可以是100或者1100毫秒等。
由于NR-V2X中重传次数的增多以及HARQ(Hybrid Automatic Repeat Request,混合自动重传请求)反馈的引入,在NR-V2X模式2的步骤2中,终端设备在候选资源集合中确定若干传输资源时要满足一些时域上的限制。
在NR-V2X中支持终端设备使用最多两个天线端口传输数据,当PSSCH采用两端口传输时,上述SL-RSRP为各个端口测量得到的SL-RSRP之和。
7.NR-V2X系统帧结构
NR-V2X中的时隙结构如图11所示。
图11(a)表示时隙中不包括PSFCH(Physical Sidelink Feedback Channel,物理侧行反馈信道)的时隙结构;图11(b)表示包括PSFCH的时隙结构。
如图11(a)所示,当时隙中不包括PSFCH时,NR-V2X中PSCCH在时域上从该时隙的第二个侧行符号开始,占用2个或3个OFDM(Orthogonal Frequency Division Multiplexing,正交频分复用)符号,在频域上可以占用{10,12 15,20,25}个PRB(Physical Resource Block,物理资源块)。为了降低终端设备对PSCCH的盲检测的复杂度,在一个资源池内只允许配置一个PSCCH符号个数和PRB个数。另外,因为子信道为NR-V2X中PSSCH资源分配的最小粒度,PSCCH占用的PRB个数必须小于或等于资源池内一个子信道中包含的PRB个数,以免对PSSCH资源选择或分配造成额外的限制。PSSCH在时域上也是从该时隙的第二个侧行符号开始,该时隙中的最后一个时域符号为GP(Guard period,保护间隔)符号,其余符号映射PSSCH。该时隙中的第一个侧行符号是第二个侧行符号的重复,通常接收端终端将第一个侧行符号用作AGC(Automatic Gain Control,自动增益控制)符号,该符号上的数据通常不用于数据解调。PSSCH在频域上占据K个子信道,每个子信道包括N个连续的PRB。
如图11(b)所示,当时隙中包括PSFCH信道时,该时隙中倒数第二个和倒数第三个符号用作PSFCH信道传输,在PSFCH信道之前的一个时域符号用作GP符号。
8.Sidelink PSSCH
在NR-V2X中PSSCH用于承载第二阶SCI和数据信息。第二阶SCI采用Polar编码方式,固定采用QPSK(Quadrature Phase Shift Keying,正交相移键控)调制。PSSCH的数据部分采用LDPC(Low Density Parity Check,低密度奇偶校验码),支持的最高调制阶数为256QAM(Quadrature Amplitude Modulation,正交振幅调制)。
在NR-V2X中PSSCH最多支持两个流传输,并且采用单位预编码矩阵将两个层上的数据映射到两个天线端口,在一个PSSCH中最多只能发送一个TB。然而,和PSSCH数据部分的发送方式不同,当PSSCH采用双流发送方式时,第二阶SCI在两个流上发送的调制符号完全相同,这样的设计可以保证第二阶SCI在高相关信道下的接收性能。
由于在NR-V2X中一个PSSCH的最大重传次数为32次,如果资源池内存在PSFCH资源,而且PSFCH资源的配置周期为2或4,则一个PSSCH的不同传输所在的时隙内可用的OFDM符号可能会发生变化,如图12所示。如果按照一个时隙内真实的OFDM符号数计算
Figure PCTCN2022111551-appb-000001
可能会由于一个时隙内可用于PSSCH传输的符号个数不同导致Q′ SCI2不同,而Q′ SCI2的改变会导致PSSCH承载的TB的大小的变化,如下文所述。为了保证PSSCH多次传输中TBS保持不变,在计算
Figure PCTCN2022111551-appb-000002
时并没有采用真实的PSFCH符号数,另外在计算
Figure PCTCN2022111551-appb-000003
时,可能在重传过程中发生变化的PSSCH DMRS(Demodulation Reference Signal,解调参考信号)占用的RE(Resource Element,资源元素)个数和PT-RS(Phase-Tracking Reference Signal,相位跟踪参考信号)占用的RE个数也没有考虑在内。
如图13所示,第二阶SCI的码率可以在一定范围内动态调整,具体采用的码率由第一阶SCI指示,所以即使在码率改变后接收端也无需对第二阶SCI进行盲检测。第二阶SCI的调制符号从第一个PSSCH DMRS所在的符号采用先频域后时域的方式开始映射,在DMRS所在的OFDM符号上第二阶SCI映射到未被DMRS占用的RE上。
在一个资源池内PSSCH的数据部分可以采用多个不同的MCS(Modulation and Coding Scheme,调制与编码策略)表格,包括常规64QAM MCS表格,256QAM MCS表格,和低频谱效率64QAM  MCS表格,而在一次传输中具体采用的MCS表格由第一阶SCI中的“MCS表格指示”域指示。为了控制PAPR(Peak-to-Average Power Ratio,峰平比),PSSCH必须采用连续的PRB发送,由于子信道为PSSCH的最小频域资源粒度,这就要求PSSCH必须占用连续的子信道。
相关技术中,SL所支持的载波聚合要求终端设备在每个载波分量上独立进行SL感知,这就要求终端设备在感知、接收SL时必须包含多个载波分量甚至所有可能支持的载波分量,这对于终端设备的感知能力和接收能力都是一个非常高的要求,不仅增加了感知/接收的复杂程度,而且费电。同时考虑到终端设备的半双工问题(终端设备发送时不能接收,接收时不能发送),会对感知/接收的效果带来较大的影响。此外,终端设备在各个载波分量上独立进行资源选择,各个载波分量上选择的资源之间的时间差距长短不一,虽说可以提升系统容量和峰值速率,但是在时延上却无法得到保证。最后,多个载波分量上的SL发送,相互之间并没有明确指示性信息进行关联,这对于终端设备的感知或者接收来说,带来了较大不便,因为终端设备需要将所有支持的载波分量上的SL数据全部接收下来、解码之后才能知道其中的关联性,然后进行合并。因此本申请提出了一种SL通信方法,发送端在某个载波上发送至少一个其他载波上的SL发送信息,使得接收端无需感知/接收其他载波上的SL数据,即可获知其他载波上的SL发送情况。
请参考图14,其示出了本申请一个实施例提供的SL通信方法的流程图。该方法可应用于图1所示的网络架构中,该方法可以包括如下步骤:
步骤1410,第一终端在第一载波上发送第一信息,第一信息用于指示至少一个第二载波上的SL发送情况,第一载波和第二载波是不同的载波。
第一载波可以是任意一个载波,第一载波用于承载第一信息。第二载波是不同于第一载波的载波,第二载波的数量可以是一个,也可以是多个(即两个或者两个以上)。
在一些实施例中,第一终端在第一载波上发送第一信息,第一信息用于指示一个第二载波上的SL发送情况。示例性地,如图15所示,假设CC#1为第一载波,CC#2为第二载波,第一终端在CC#1上发送第一信息,该第一信息用于指示CC#2上的SL发送情况。
在一些实施例中,第一终端在第一载波上发送第一信息,第一信息用于指示至少两个第二载波上的SL发送情况。示例性地,如图15所示,假设CC#1为第一载波,CC#2、CC#3和CC#4均为第二载波,第一终端在CC#1上发送第一信息,该第一信息用于指示CC#2、CC#3和CC#4上的SL发送情况。
在一些实施例中,第一信息包括以下至少之一:处于激活状态的第二载波的索引列表;至少一个第二载波对应的BWP(Band Width Part,部分带宽)索引;至少一个第二载波对应的资源池索引;至少一个第二载波对应的时域偏移量;至少一个第二载波对应的频域偏移量;至少一个第二载波对应的SL传输资源预留周期;至少一个第二载波对应的参数集;至少一个第二载波上可用的资源池信息。上述索引也可以称为ID(Identifier,标识符),二者的含义相同。
示例性地,第一终端在第一载波上发送第一信息,第一信息用于指示处于激活状态的第二载波的索引列表。
示例性地,第一终端在第一载波上发送第一信息,第一信息用于指示至少一个第二载波对应的BWP索引。上述BWP是整个带宽上的一个子集,每个BWP是在给定载波和给定Numerology(命理)条件下的一组连续的PRB(Physical Resource Block,物理资源块)。
示例性地,第一终端在第一载波上发送第一信息,第一信息用于指示至少一个第二载波对应的资源池索引。资源池即资源的集合,侧行链路的资源池即用于侧行传输的时频资源的集合。
示例性地,第一终端在第一载波上发送第一信息,第一信息用于指示至少一个第二载波对应的时域偏移量。如图15所示,假设CC#1为第一载波,CC#2、CC#3和CC#4均为第二载波。上述第二载波对应的时域偏移量是指第二载波对应的时域起始位置与第一载波对应的时域起始位置之间的偏移量。
示例性地,第一终端在第一载波上发送第一信息,第一信息用于指示至少一个第二载波对应的频域偏移量。如图15所示,假设CC#1为第一载波,CC#2、CC#3和CC#4均为第二载波。上述第二载波对应的频域偏移量是指第二载波对应的频域起始位置与第一载波对应的频域起始位置之间的偏移量。
示例性地,第一终端在第一载波上发送第一信息,第一信息用于指示至少一个第二载波对应的 SL传输资源预留周期。上述传输资源预留周期可以是根据TB(Transport Block,传输块)传输间隔设置的。
示例性地,第一终端在第一载波上发送第一信息,第一信息用于指示至少一个第二载波对应的参数集。可选地,上述参数集包括子载波间隔(Sub-Carrier Space,SCS)。
示例性地,第一终端在第一载波上发送第一信息,第一信息用于指示至少一个第二载波上可用的资源池信息。
在一些实施例中,第一信息还用于指示第一载波上的发送情况。示例性地,第一信息包括以下至少之一:第一载波的索引、第一载波对应的BWP索引、第一载波对应的资源池索引、第一载波对应的SL传输资源预留周期、第一载波对应的参数集以及第一载波上可用的资源池信息。
上述处于激活状态的第二载波的索引列表,也可以是处于激活状态的载波的索引列表。处于激活状态的载波的索引列表包括:处于激活状态的第二载波的索引和第一载波的索引。
在一些实施例中,上述第一信息还包括所有载波的索引列表。所有载波的索引列表包括处于激活状态的载波的索引和处于非激活状态的载波的索引。
在一些实施例中,第一载波的数量为一个或多个。
示例性地,第一载波的数量为一个,如图15所示,SL通信中存在CC#1、CC#2、CC#3和CC#4四个载波,其中,第一载波为CC#1,则第二载波为CC#2、CC#3和CC#4中的一个载波。第一终端在CC#1上发送第一信息,第一信息用于指示CC#2、CC#3和CC#4中至少一个载波上的SL发送情况。
示例性地,第一载波的数量为多个,如图15所示,SL通信中存在CC#1、CC#2、CC#3和CC#4四个载波,其中,第一载波为CC#1和CC#2,则第二载波为CC#3和CC#4中的一个载波。第一终端在CC#1上发送第一信息,且第一终端也在CC#2上发送第一信息,第一信息用于指示CC#3和CC#4中至少一个载波上的SL发送情况。
在一些实施例中,第一载波是预配置的,或者由网络设备或锚点终端配置的。
示例性地,如图15所示,SL通信中存在CC#1、CC#2、CC#3和CC#4四个载波,将CC#1预配置为第一载波。预配置是指将第一载波预先配置在第一终端中。
示例性地,如图15所示,SL通信中存在CC#1、CC#2、CC#3和CC#4四个载波,网络设备或锚点终端将CC#1配置为第一载波。
在一些实施例中,第一载波支持半静态变化,或者支持动态变化。
第一载波支持半静态变化,示例性地,如图15所示,第一终端根据第一配置信息确定第一载波为CC#1,第一终端根据第二配置信息确定第一载波为CC#2,在第一终端接收到第二配置信息之前,一直将CC#1作为第一载波。第一终端接收到第二配置信息之后,将第一载波由CC#1更改为CC#2。
第一载波支持动态变化,示例性地,如图15所示,在SL通信中,第一载波在CC#1、CC#2、CC#3和CC#4中动态变化。例如,第一终端可以自行确定第一载波,且第一终端确定的第一载波可以是动态变化的。
在一些实施例中,第一载波为主载波。在一些实施例中,主载波也可以称为锚点载波。
示例性地,第一终端在主载波上发送第一信息,第一信息用于指示至少一个第二载波上的SL发送情况,主载波和第二载波是不同的载波。
在一些实施例中,主载波的数量为一个或多个。
示例性地,主载波的数量为一个,如图15所示,SL通信中存在CC#1、CC#2、CC#3和CC#4四个载波,其中,主载波为CC#1,则第二载波为CC#2、CC#3和CC#4中的一个载波。第一终端在CC#1上发送第一信息,第一信息用于指示CC#2、CC#3和CC#4中至少一个载波上的SL发送情况。
示例性地,主载波的数量为多个,如图15所示,SL通信中存在CC#1、CC#2、CC#3和CC#4四个载波,其中,主载波为CC#1和CC#2,则第二载波为CC#3和CC#4中的一个载波。第一终端在CC#1和CC#2上分别发送第一信息,第一信息用于指示CC#3和CC#4中至少一个载波上的SL发送情况。
在一些实施例中,主载波是预配置的,或者由网络设备或锚点终端配置的。
示例性地,如图15所示,SL通信中存在CC#1、CC#2、CC#3和CC#4四个载波,预配置CC#1为主载波。
示例性地,如图15所示,SL通信中存在CC#1、CC#2、CC#3和CC#4四个载波,网络设备或 锚点终端将CC#1配置为主载波。
在一些实施例中,主载波支持半静态变化,或者支持动态变化。
主载波支持半静态变化,示例性地,如图15所示,第一终端根据第一配置信息确定主载波为CC#1,第一终端根据第二配置信息确定主载波为CC#2,在第一终端接收到第二配置信息之前,一直将CC#1作为主载波。第一终端接收到第二配置信息之后,将主载波由CC#1更改为CC#2。
主载波支持动态变化,示例性地,如图15所示,SL通信中,主载波在CC#1、CC#2、CC#3和CC#4中动态变化。例如,第一终端可以自行确定主载波,且第一终端确定的主载波可以是动态变化的。
在一些实施例中,第一信息携带于SCI中,或者携带于MAC CE(MAC Control Element,媒体接入控制单元)信令中,或者携带于基于PC5接口的PC5-RRC(Radio Resource Control,无线资源控制)信令中。
上述SCI可以是第一阶SCI(1st-stage-SCI),也可以是第二阶SCI(2st-stage-SCI),本申请对此不作限定。
示例性地,第一信息携带于承载在PSCCH信道的SCI中,或者第一信息携带于承载在PSSCH信道的MAC CE信令中,或者携带于基于PC5接口的PC5-RRC信令中。
在一些实施例中,第二载波上的SL发送情况,包括第一终端在该第二载波上的SL发送情况;和/或,除第一终端外的至少一个其他终端在该第二载波上的SL发送情况。
示例性地,如图15所示,SL通信中存在CC#1、CC#2、CC#3和CC#4四个载波,以CC#1为第一载波,CC#2为第二载波为例。
在一些实施例中,第二载波上的SL发送情况包括第一终端在第二载波上的SL发送情况,则第二载波上的SL发送情况包括第一终端在CC#2上的SL发送情况。
在一些实施例中,第二载波上的SL发送情况包括除第一终端外的至少一个其他终端在第二载波上的SL发送情况,则第二载波上的SL发送情况可以包括第三终端在CC#2上的SL发送情况,第三终端是不同于第一终端的终端设备。
在一些实施例中,第二载波上的SL发送情况包括:第一终端在第二载波上的SL发送情况,以及除第一终端外的至少一个其他终端在第二载波上的SL发送情况。则第二载波上的SL发送情况包括:第一终端在CC#2上的SL发送情况,和第三终端在CC#2上的SL发送情况,第一终端和第三终端在CC#2上发送SL数据占用的时频资源不重叠。
在一些实施例中,第一终端和第三终端不在相同的载波上发送SL数据,如图15所示,第一终端在CC#1和CC#2上发送SL数据,第三终端在CC#3上发送SL数据,其中第一载波为CC#1,则第二载波上的SL发送情况包括:第一终端在CC#2上的SL发送情况和第三终端在CC#3上的SL发送情况。
在一些实施例中,第二载波为多个,第二载波上的SL发送情况包括:第一终端在至少一个第二载波上的SL发送情况,和/或,除第一终端外的至少一个其他终端在至少一个第二载波上的SL发送情况。
示例性地,如图15所示,SL通信中存在CC#1、CC#2、CC#3和CC#4四个载波,第一终端和第三终端均在上述四个载波上发送SL数据,以CC#1为第一载波为例。
在一些实施例中,第二载波上的SL发送情况,包括第一终端在至少一个第二载波上的SL发送情况,则第二载波上的SL发送情况包括第一终端在CC#2、CC#3和CC#4中至少一个载波上的SL发送情况。
在一些实施例中,第二载波上的SL发送情况,包括除第一终端外的至少一个其他终端在至少一个第二载波上的SL发送情况,则第二载波上的SL发送情况包括第三终端在CC#2、CC#3和CC#4中至少一个载波上的SL发送情况。
在一些实施例中,第二载波上的SL发送情况,包括第一终端在至少一个第二载波上的SL发送情况,以及,除第一终端外的至少一个其他终端在至少一个第二载波上的SL发送情况,则第二载波上的SL发送情况包括:第一终端在CC#2、CC#3和CC#4中至少一个载波上的SL发送情况,以及第三终端在CC#2、CC#3和CC#4中至少一个载波上的SL发送情况。
需要说明的一点是,第一终端可以通过感知获知除第一终端外的至少一个其他终端在第二载波上的SL发送情况,也可以将除第一终端外的至少一个其他终端在第二载波上的SL发送情况配置在 第一终端中,本申请对此不作限定。
本申请实施例提供的技术方案,通过发送端在某个载波上发送第一信息,第一信息用于指示除上述载波外其他载波上的SL发送情况,接收端无需在每个载波上都进行感知/解码/盲检,仅通过接收上述载波和第一信息,就可以明确其他载波上的SL发送情况,大大降低了接收端在多载波操作时,接收SL数据的复杂度,减少了感知步骤,降低了盲检复杂度,进一步节约了电能。
请参考图16,其示出了本申请另一个实施例提供的SL通信方法的流程图。该方法可应用于图1所示的网络架构中,该方法可以包括如下步骤1410~1430中的至少一个步骤:
步骤1410,第一终端在第一载波上发送第一信息,第一信息用于指示至少一个第二载波上的SL发送情况,第一载波和第二载波是不同的载波。
在一些实施例中,对于n个载波中的每一个载波,将上述载波作为第一载波,第二载波为n个载波中除第一载波之外的一个载波,n为大于1的整数。
示例性地,如图15所示,SL通信中存在CC#1、CC#2、CC#3和CC#4四个载波,n=4;对于上述四个载波中的每一个载波,将每一个载波都作为第一载波,对于每个第一载波,第二载波为四个载波中除第一载波之外的一个载波。即,第一终端将CC#1作为第一载波,第二载波为CC#2、CC#3和CC#4中的一个载波,第一终端在CC#1上发送第一信息,第一信息用于指示CC#2、CC#3和CC#4中至少一个载波上的SL发送情况;且第一终端将CC#2作为第一载波,第二载波为CC#1、CC#3和CC#4中的一个载波,第一终端在CC#2上发送第一信息,第一信息用于指示CC#1、CC#3和CC#4中至少一个载波上的SL发送情况;且第一终端将CC#3作为第一载波,第二载波为CC#1、CC#2和CC#4中的一个载波,第一终端在CC#3上发送第一信息,第一信息用于指示CC#1、CC#2和CC#4中至少一个载波上的SL发送情况;且第一终端将CC#4作为第一载波,第二载波为CC#1、CC#2和CC#3中的一个载波,第一终端在CC#4上发送第一信息,第一信息用于指示CC#1、CC#2和CC#3中至少一个载波上的SL发送情况。
在一些实施例中,对于n个载波中的每一个载波,将上述载波作为第一载波,第二载波为n个载波中除第一载波之外的一个载波,n为大于1的整数。第一终端在第一载波上发送第一信息,第一信息用于指示上述n个载波(包括第一载波和至少一个第二载波)上的SL发送情况。
示例性地,如图15所示,SL通信中存在CC#1、CC#2、CC#3和CC#4四个载波,n=4;对于上述四个载波中的每一个载波,将每一个载波都作为第一载波,对于每个第一载波,第一终端在第一载波上发送第一信息,第一信息用于指示上述四个载波上的SL发送情况。即,第一终端将CC#1作为第一载波,第一终端在CC#1上发送第一信息,第一信息用于指示CC#1、CC#2、CC#3和CC#4中上的SL发送情况;且第一终端将CC#2作为第一载波,第一终端在CC#1上发送第一信息,第一信息用于指示CC#1、CC#2、CC#3和CC#4中上的SL发送情况;且第一终端将CC#3作为第一载波,第一终端在CC#1上发送第一信息,第一信息用于指示CC#1、CC#2、CC#3和CC#4中上的SL发送情况;且第一终端将CC#4作为第一载波,第一终端在CC#1上发送第一信息,第一信息用于指示CC#1、CC#2、CC#3和CC#4中上的SL发送情况。
通过上述方式,将所有载波均作为第一载波发送第一信息,接收端接收任一载波上发送的第一信息,即可获取其他载波上的SL发送情况,无需限定某一载波为第一载波。
在一些实施例中,将n个载波中的一个载波作为第一载波,第二载波为n个载波中除第一载波之外的一个载波,n为大于1的整数。
示例性地,如图15所示,SL通信中存在CC#1、CC#2、CC#3和CC#4四个载波,n=4;将上述四个载波中的一个载波作为第一载波,第二载波为四个载波中除第一载波之外的一个载波。即,第一终端将CC#1作为第一载波,第二载波为CC#2、CC#3和CC#4中的一个载波,第一终端在CC#1上发送第一信息,第一信息用于指示CC#2、CC#3和CC#4中至少一个载波上的SL发送情况;或者第一终端将CC#2作为第一载波,第二载波为CC#1、CC#3和CC#4中的一个载波,第一终端在CC#2上发送第一信息,第一信息用于指示CC#1、CC#3和CC#4中至少一个载波上的SL发送情况;或者第一终端将CC#3作为第一载波,第二载波为CC#1、CC#2和CC#4中的一个载波,第一终端在CC#3上发送第一信息,第一信息用于指示CC#1、CC#2和CC#4中至少一个载波上的SL发送情况;或者第一终端将CC#4作为第一载波,第二载波为CC#1、CC#2和CC#3中的一个载波,第一终端在CC#4上发送第一信息,第一信息用于指示CC#1、CC#2和CC#3中至少一个载波上的SL发送情况。
通过上述方式,仅在一个第一载波上发送第一信息,接收端仅需该第一载波上的第一信息,即 可获取其他载波上的SL发送情况,相比于将每个载波均作为第一载波发送第一信息,节约了信令资源。
在一些实施例中,在第一载波上发送的信息中携带第一指示信息,第一指示信息用于指示上述信息所在的载波为第一载波。
示例性地,如图15所示,SL通信中存在CC#1、CC#2、CC#3和CC#4四个载波,其中,第一载波为CC#1,第二载波为CC#2、CC#3和CC#4中的一个载波。在CC#1上发送的信息中携带第一指示信息,第一指示信息用于指示上述信息所在的载波CC#1为第一载波。在一些实施例中,第一载波为主载波,第一指示信息用于指示上述信息所在的载波CC#1为主载波。第一指示信息可以用1bit来表示,示例性地,0代表上述信息所在的载波CC#1不是第一载波,1代表上述信息所在的载波CC#1为第一载波。
在第一载波上发送的信息中携带指示信息,指示该载波为第一载波,接收端感知到该载波,即可确定该载波为第一载波,然后再接收该载波上传输的第一信息,减少了感知步骤。
在一些实施例中,在任一载波上发送的信息中携带第二指示信息,第二指示信息用于确定第一载波。
示例性地,如图15所示,SL通信中存在CC#1、CC#2、CC#3和CC#4四个载波,其中,第一载波为CC#1,第二载波为CC#2、CC#3和CC#4中的一个载波。在CC#1、CC#2、CC#3和CC#4中任意一个或多个载波上发送的信息中携带第二指示信息,第二指示信息用于指示载波CC#1为第一载波。第二指示信息可以用至少一个bit表示,例如第二指示信息可以是第一载波的索引。
在所有载波上发送的信息中携带指示信息,指示第一载波,接收端感知到任一载波上的指示信息即可确定第一载波,减少感知步骤。
在一些实施例中,第一指示信息携带于SCI中,或者携带于MAC CE信令中,或者携带于基于PC5接口的PC5-RRC信令中。
在一些实施例中,第二指示信息携带于SCI中,或者携带于MAC CE信令中,或者携带于基于PC5接口的PC5-RRC信令中。
在一些实施例中,当第一载波发生变化时,第一指示信息或者第二指示信息对应更新。
示例性地,如图15所示,第一终端在CC#1、CC#2、CC#3和CC#4四个载波上发送SL数据,第一载波由CC#1变为CC#2,则第一终端不再在CC#1上发送的信息中携带第一指示信息,而是在CC#2上发送的信息中携带第一指示信息。
示例性地,如图15所示,第一终端在CC#1、CC#2、CC#3和CC#4四个载波上发送SL数据,第一载波由CC#1变为CC#2,则第一终端在CC#1、CC#2、CC#3和CC#4中任意一个或多个载波上发送的信息中携带第二指示信息,第二指示信息由指示载波CC#1为第一载波更改为指示载波CC#2为第一载波。
步骤1420,第二终端根据至少一个第二载波上的SL发送情况,接收至少一个第二载波上发送的SL数据。
示例性地,如图15所示,SL通信中存在CC#1、CC#2、CC#3和CC#4四个载波,其中,第一载波为CC#1,第二载波为CC#2、CC#3和CC#4中的一个载波。第二终端接收并解码第一终端在CC#1上发送的第一信息,通过第一信息获知CC#2、CC#3和CC#4中至少一个载波上的SL发送情况。第二终端根据CC#2、CC#3和CC#4中至少一个载波上的SL发送情况,接收CC#2、CC#3和CC#4中至少一个载波上发送的SL数据。例如,第二载波为CC#2。第二终端接收并解码第一终端在CC#1上发送的第一信息,通过第一信息获知CC#2上的SL发送情况。第二终端根据CC#2上的SL发送情况,接收CC#2上发送的SL数据。CC#2上的SL数据可以是第一终端发送的,也可以是除第一终端外的至少一个其他终端发送的,还可以是第一终端和除第一终端外至少一个其他终端发送的,本申请对此不作限定。
步骤1430,第二终端根据第一终端在第二载波上的SL发送情况,执行与第二载波相关的资源排除和/或资源选择。
示例性地,如图15所示,SL通信中存在CC#1、CC#2、CC#3和CC#4四个载波,其中,第一载波为CC#1,第二载波为CC#2、CC#3和CC#4中的一个载波。第二终端接收并解码第一终端在CC#1上发送的第一信息,通过第一信息获知CC#2、CC#3和CC#4中至少一个载波上的SL发送情况。第二终端根据CC#2、CC#3和CC#4中至少一个载波上的SL发送情况,执行与CC#2、CC#3和 CC#4中至少一个载波相关的资源排除和/或资源选择。例如,第二终端执行与CC#2、CC#3和CC#4中至少一个载波相关的资源排除时,根据CC#2、CC#3和CC#4中至少一个载波上的SL发送情况,将CC#2、CC#3和CC#4中至少一个载波上预约/占用的资源排除出第二终端对应的可用候选资源集合。例如,第二终端执行与CC#2、CC#3和CC#4中至少一个载波相关的资源选择时,根据CC#2、CC#3和CC#4中至少一个载波上的SL发送情况,将CC#2、CC#3和CC#4中至少一个载波上预约/占用的资源排除出第二终端对应的可用候选资源集合,再在其对应的可用候选资源集合中进行资源选择。
需要说明的一点是,上述步骤1420和步骤1430可以择一执行,也可以都执行,本申请对此不作限定;步骤1420可以在步骤1430之前执行,也可以在步骤1430之后执行,或者同时执行,本申请对此不作限定。
本申请实施例提供的技术方案,通过发送端在某个载波上发送第一信息,第一信息用于指示除上述载波外其他载波上的SL发送情况,接收端无需在每个载波上都进行感知/解码/盲检,仅通过接收上述载波和第一信息,就可以明确其他载波上的SL发送情况,大大降低了接收端在多载波操作时,接收SL数据的复杂度,减少了感知步骤,降低了盲检复杂度,进一步节约了电能。且接收端可以根据除上述载波外其他载波上的SL发送情况,针对除上述载波外其他载波上的SL数据进行接收,或者执行与除上述载波外其他载波的资源排除/资源选择,减少了感知步骤,降低了盲检复杂度,进一步节约了电能。
需要说明的是,上述有关第一设备执行的步骤,可以单独实现成为第一设备侧的SL通信方法;上述有关第二设备执行的步骤,可以单独实现成为第二设备侧的SL通信方法。
下述为本申请装置实施例,可以用于执行本申请方法实施例。对于本申请装置实施例中未披露的细节,请参照本申请方法实施例。
请参考图17,其示出了本申请一个实施例提供的SL通信装置的框图。该装置具有实现上述SL通信方法示例的功能,所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。该装置可以是上文介绍的终端设备,也可以设置在终端设备中。如图17所示,该装置1700可以包括:发送模块1710。
在一些实施例中,所述装置1700包括:
发送模块1710,用于在第一载波上发送第一信息,所述第一信息用于指示至少一个第二载波上的SL发送情况,所述第一载波和所述第二载波是不同的载波。
在一些实施例中,所述第一信息包括以下至少之一:
处于激活状态的至少一个第二载波的索引列表;
所述至少一个第二载波对应的部分带宽BWP索引;
所述至少一个第二载波对应的资源池索引;
所述至少一个第二载波对应的时域偏移量;
所述至少一个第二载波对应的频域偏移量;
所述至少一个第二载波对应的SL传输资源预留周期;
所述至少一个第二载波对应的参数集;
所述至少一个第二载波上可用的资源池信息。
在一些实施例中,所述第一载波的数量为一个或多个。
在一些实施例中,所述第一载波是预配置的,或者由网络设备或锚点终端配置的。
在一些实施例中,所述第一载波支持半静态变化,或者支持动态变化。
在一些实施例中,所述第一载波为所述第一终端的主载波。
在一些实施例中,在所述第一载波上发送的信息中携带第一指示信息,所述第一指示信息用于指示所述信息所在的载波为所述第一载波;
或者,
在任一载波上发送的信息中携带第二指示信息,所述第二指示信息用于确定所述第一载波。
在一些实施例中,所述第一信息携带于侧行控制信息SCI中,或者携带于媒体接入控制单元MAC CE信令中,或者携带于基于PC5接口的无线链路控制PC5-RRC信令中。
在一些实施例中,对于n个载波中的每一个载波,将所述载波作为所述第一载波,所述第二载波为所述n个载波中除所述第一载波之外的一个载波,n为大于1的整数。
在一些实施例中,将n个载波中的一个载波作为所述第一载波,所述第二载波为所述n个载波中除所述第一载波之外的一个载波,n为大于1的整数。
在一些实施例中,所述第二载波上的SL发送情况,包括:
第一终端在所述第二载波上的SL发送情况;
和/或,
除第一终端外的至少一个其他终端在所述第二载波上的SL发送情况。
综上所述,本申请实施例提供的技术方案,通过发送端在某个载波上发送第一信息,第一信息用于指示除上述载波外其他载波上的SL发送情况,接收端无需在每个载波上都进行感知/解码/盲检,仅通过接收上述载波和第一信息,就可以明确其他载波上的SL发送情况,大大降低了接收端在多载波操作时,接收SL数据的复杂度,减少了感知步骤,降低了盲检复杂度,进一步节约了电能。
请参考图18,其示出了本申请另一个实施例提供的SL通信装置的框图。该装置具有实现上述SL通信方法示例的功能,所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。该装置可以是上文介绍的终端设备,也可以设置在终端设备中。如图18所示,该装置1800可以包括:第一接收模块1810。
在一些实施例中,所述装置1800包括:
第一接收模块1810,用于接收第一终端在第一载波上发送的第一信息,所述第一信息用于指示至少一个第二载波上的SL发送情况,所述第一载波和所述第二载波是不同的载波。
在一些实施例中,所述第一信息包括以下至少之一:
处于激活状态的至少一个第二载波的索引列表;
所述至少一个第二载波对应的部分带宽BWP索引;
所述至少一个第二载波对应的资源池索引;
所述至少一个第二载波对应的时域偏移量;
所述至少一个第二载波对应的频域偏移量;
所述至少一个第二载波对应的SL传输资源预留周期;
所述至少一个第二载波对应的参数集;
所述至少一个第二载波上可用的资源池信息。
在一些实施例中,所述第一载波的数量为一个或多个。
在一些实施例中,所述第一载波是预配置的,或者由网络设备或锚点终端配置的。
在一些实施例中,所述第一载波支持半静态变化,或者支持动态变化。
在一些实施例中,所述第一载波为所述第一终端的主载波。
在一些实施例中,在所述第一载波上发送的信息中携带第一指示信息,所述第一指示信息用于指示所述信息所在的载波为所述第一载波;
或者,
在任一载波上发送的信息中携带第二指示信息,所述第二指示信息用于确定所述第一载波。
在一些实施例中,所述第一信息携带于侧行控制信息SCI中,或者携带于媒体接入控制单元MAC CE信令中,或者携带于基于PC5接口的无线链路控制PC5-RRC信令中。
在一些实施例中,对于n个载波中的每一个载波,将所述载波作为所述第一载波,所述第二载波为所述n个载波中除所述第一载波之外的一个载波,n为大于1的整数。
在一些实施例中,将n个载波中的一个载波作为所述第一载波,所述第二载波为所述n个载波中除所述第一载波之外的一个载波,n为大于1的整数。
在一些实施例中,所述第二载波上的SL发送情况,包括:
所述第一终端在所述第二载波上的SL发送情况;
和/或,
除所述第一终端外的至少一个其他终端在所述第二载波上的SL发送情况。
在一些实施例中,接收模块1810,还用于根据所述第二载波上的SL发送情况,接收所述至少一个第二载波上发送的SL数据;
和/或,
所述装置1800还包括:处理模块1820,用于根据所述第二载波上的SL发送情况,执行与所述至少一个第二载波相关的资源排除和/或资源选择。
需要说明的是,上述实施例提供的装置在实现其功能时,仅以上述各个功能模块的划分进行举例说明,实际应用中,可以根据实际需要而将上述功能分配由不同的功能模块完成,即将设备的内容结构划分成不同的功能模块,以完成以上描述的全部或者部分功能。
关于上述实施例中的装置,其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述,此处将不做详细阐述说明。有关装置实施例中未详细说明的细节,可参考上述方法实施例。
请参考图19,其示出了本申请一个实施例提供的终端设备的结构示意图。该终端设备1900可以包括:处理器1901、收发器1902以及存储器1903。其中,处理器1901用于实现上述处理模块的功能,收发器1902用于实现上述发送模块和接收模块的功能。
处理器1901包括一个或者一个以上处理核心,处理器1901通过运行软件程序以及模块,从而执行各种功能应用以及信息处理。
收发器1902可以包括接收器和发射器,比如,该接收器和发射器可以实现为同一个无线通信组件,该无线通信组件可以包括一块无线通信芯片以及射频天线。
存储器1903可以与处理器1901以及收发器1902相连。
存储器1903可用于存储处理器执行的计算机程序,处理器1901用于执行该计算机程序,以实现上述方法实施例中的各个步骤。
在一些实施例中,在终端设备为上文实施例介绍的第一终端的情况下,收发器1902用于在第一载波上发送第一信息,第一信息用于指示至少一个第二载波上的SL发送情况,第一载波和第二载波是不同的载波。
在一些实施例中,在终端设备为上文实施例介绍的第二终端的情况下,收发器1902用于接收第一终端在第一载波上发送的第一信息,第一信息用于指示至少一个第二载波上的SL发送情况,第一载波和第二载波是不同的载波。
对于本实施例中未详细说明的细节,可参见上文实施例,此处不再一一赘述。
此外,存储器可以由任何类型的易失性或非易失性存储设备或者它们的组合实现,易失性或非易失性存储设备包括但不限于:磁盘或光盘,电可擦除可编程只读存储器,可擦除可编程只读存储器,静态随时存取存储器,只读存储器,磁存储器,快闪存储器,可编程只读存储器。
本申请实施例还提供了一种计算机可读存储介质,所述存储介质中存储有计算机程序,所述计算机程序用于被处理器执行,以实现上述第一终端或第二终端执行的SL通信方法。可选地,该计算机可读存储介质可以包括:ROM(Read-Only Memory,只读存储器)、RAM(Random-Access Memory,随机存储器)、SSD(Solid State Drives,固态硬盘)或光盘等。其中,随机存取记忆体可以包括ReRAM(Resistance Random Access Memory,电阻式随机存取记忆体)和DRAM(Dynamic Random Access Memory,动态随机存取存储器)。
本申请实施例还提供了一种芯片,所述芯片包括可编程逻辑电路和/或程序指令,当所述芯片运行时,用于实现上述第一终端或第二终端执行的SL通信方法。
本申请实施例还提供了一种计算机程序产品,所述计算机程序产品包括计算机指令,所述计算机指令存储在计算机可读存储介质中,处理器从所述计算机可读存储介质读取并执行所述计算机指令,以实现上述第一终端或第二终端执行的SL通信方法。
应理解,在本申请的实施例中提到的“指示”可以是直接指示,也可以是间接指示,还可以是表示具有关联关系。举例说明,A指示B,可以表示A直接指示B,例如B可以通过A获取;也可以表示A间接指示B,例如A指示C,B可以通过C获取;还可以表示A和B之间具有关联关系。
在本申请实施例的描述中,术语“对应”可表示两者之间具有直接对应或间接对应的关系,也可以表示两者之间具有关联关系,也可以是指示与被指示、配置与被配置等关系。
在本申请一些实施例中,“预定义的”可以通过在设备(例如,包括终端设备和网络设备)中预先保存相应的代码、表格或其他可用于指示相关信息的方式来实现,本申请对于其具体的实现方式不作限定。比如预定义的可以是指协议中定义的。
在本申请一些实施例中,所述“协议”可以指通信领域的标准协议,例如可以包括LTE协议、NR协议以及应用于未来的通信系统中的相关协议,本申请对此不作限定。
在本文中提及的“多个”是指两个或两个以上。“和/或”,描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
在本文中提及的“大于或等于”可表示大于等于或大于,“小于或等于”可表示小于等于或小于。
另外,本文中描述的步骤编号,仅示例性示出了步骤间的一种可能的执行先后顺序,在一些其它实施例中,上述步骤也可以不按照编号顺序来执行,如两个不同编号的步骤同时执行,或者两个不同编号的步骤按照与图示相反的顺序执行,本申请实施例对此不作限定。
本领域技术人员应该可以意识到,在上述一个或多个示例中,本申请实施例所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时,可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质,其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
以上所述仅为本申请的示例性实施例,并不用以限制本申请,凡在本申请的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本申请的保护范围之内。

Claims (50)

  1. 一种侧行链路SL通信方法,其特征在于,所述方法包括:
    第一终端在第一载波上发送第一信息,所述第一信息用于指示至少一个第二载波上的SL发送情况,所述第一载波和所述第二载波是不同的载波。
  2. 根据权利要求1所述的方法,其特征在于,所述第一信息包括以下至少之一:
    处于激活状态的第二载波的索引列表;
    所述至少一个第二载波对应的部分带宽BWP索引;
    所述至少一个第二载波对应的资源池索引;
    所述至少一个第二载波对应的时域偏移量;
    所述至少一个第二载波对应的频域偏移量;
    所述至少一个第二载波对应的SL传输资源预留周期;
    所述至少一个第二载波对应的参数集;
    所述至少一个第二载波上可用的资源池信息。
  3. 根据权利要求1或2所述的方法,其特征在于,所述第一载波的数量为一个或多个。
  4. 根据权利要求1至3任一项所述的方法,其特征在于,所述第一载波是预配置的,或者由网络设备或锚点终端配置的。
  5. 根据权利要求1至4任一项所述的方法,其特征在于,所述第一载波支持半静态变化,或者支持动态变化。
  6. 根据权利要求1至5任一项所述的方法,其特征在于,所述第一载波为所述第一终端的主载波。
  7. 根据权利要求1至6任一项所述的方法,其特征在于,
    在所述第一载波上发送的信息中携带第一指示信息,所述第一指示信息用于指示所述信息所在的载波为所述第一载波;
    或者,
    在任一载波上发送的信息中携带第二指示信息,所述第二指示信息用于确定所述第一载波。
  8. 根据权利要求1至7任一项所述的方法,其特征在于,所述第一信息携带于侧行控制信息SCI中,或者携带于媒体接入控制单元MAC CE信令中,或者携带于基于PC5接口的无线链路控制PC5-RRC信令中。
  9. 根据权利要求1至8任一项所述的方法,其特征在于,对于n个载波中的每一个载波,将所述载波作为所述第一载波,所述第二载波为所述n个载波中除所述第一载波之外的一个载波,n为大于1的整数。
  10. 根据权利要求1至8任一项所述的方法,其特征在于,将n个载波中的一个载波作为所述第一载波,所述第二载波为所述n个载波中除所述第一载波之外的一个载波,n为大于1的整数。
  11. 根据权利要求1至10任一项所述的方法,其特征在于,所述第二载波上的SL发送情况,包括:
    所述第一终端在所述第二载波上的SL发送情况;
    和/或,
    除所述第一终端外的至少一个其他终端在所述第二载波上的SL发送情况。
  12. 一种侧行链路SL通信方法,其特征在于,所述方法包括:
    第二终端接收第一终端在第一载波上发送的第一信息,所述第一信息用于指示至少一个第二载波上的SL发送情况,所述第一载波和所述第二载波是不同的载波。
  13. 根据权利要求12所述的方法,其特征在于,所述第一信息包括以下至少之一:
    处于激活状态的第二载波的索引列表;
    所述至少一个第二载波对应的部分带宽BWP索引;
    所述至少一个第二载波对应的资源池索引;
    所述至少一个第二载波对应的时域偏移量;
    所述至少一个第二载波对应的频域偏移量;
    所述至少一个第二载波对应的SL传输资源预留周期;
    所述至少一个第二载波对应的参数集;
    所述至少一个第二载波上可用的资源池信息。
  14. 根据权利要求12或13所述的方法,其特征在于,所述第一载波的数量为一个或多个。
  15. 根据权利要求12至14任一项所述的方法,其特征在于,所述第一载波是预配置的,或者由网络设备或锚点终端配置的。
  16. 根据权利要求12至15任一项所述的方法,其特征在于,所述第一载波支持半静态变化,或者支持动态变化。
  17. 根据权利要求12至16任一项所述的方法,其特征在于,所述第一载波为所述第一终端的主载波。
  18. 根据权利要求12至17任一项所述的方法,其特征在于,
    在所述第一载波上发送的信息中携带第一指示信息,所述第一指示信息用于指示所述信息所在的载波为所述第一载波;
    或者,
    在任一载波上发送的信息中携带第二指示信息,所述第二指示信息用于确定所述第一载波。
  19. 根据权利要求12至18任一项所述的方法,其特征在于,所述第一信息携带于侧行控制信息SCI中,或者携带于媒体接入控制单元MAC CE信令中,或者携带于基于PC5接口的无线链路控制PC5-RRC信令中。
  20. 根据权利要求12至19任一项所述的方法,其特征在于,对于n个载波中的每一个载波,将所述载波作为所述第一载波,所述第二载波为所述n个载波中除所述第一载波之外的一个载波,n为大于1的整数。
  21. 根据权利要求12至19任一项所述的方法,其特征在于,将n个载波中的一个载波作为所述第一载波,所述第二载波为所述n个载波中除所述第一载波之外的一个载波,n为大于1的整数。
  22. 根据权利要求12至21任一项所述的方法,其特征在于,所述第二载波上的SL发送情况,包括:
    所述第一终端在所述第二载波上的SL发送情况;
    和/或,
    除所述第一终端外的至少一个其他终端在所述第二载波上的SL发送情况。
  23. 根据权利要求12至22任一项所述的方法,其特征在于,所述第二终端接收第一终端在第一载波上发送的第一信息之后,还包括:
    所述第二终端根据所述第二载波上的SL发送情况,接收所述至少一个第二载波上发送的SL数据;
    和/或,
    所述第二终端根据所述第二载波上的SL发送情况,执行与所述至少一个第二载波相关的资源排除和/或资源选择。
  24. 一种侧行链路SL通信装置,其特征在于,所述装置包括:
    发送模块,用于在第一载波上发送第一信息,所述第一信息用于指示至少一个第二载波上的SL发送情况,所述第一载波和所述第二载波是不同的载波。
  25. 根据权利要求24所述的装置,其特征在于,所述第一信息包括以下至少之一:
    处于激活状态的第二载波的索引列表;
    所述至少一个第二载波对应的部分带宽BWP索引;
    所述至少一个第二载波对应的资源池索引;
    所述至少一个第二载波对应的时域偏移量;
    所述至少一个第二载波对应的频域偏移量;
    所述至少一个第二载波对应的SL传输资源预留周期;
    所述至少一个第二载波对应的参数集;
    所述至少一个第二载波上可用的资源池信息。
  26. 根据权利要求24或25所述的装置,其特征在于,所述第一载波的数量为一个或多个。
  27. 根据权利要求24至26任一项所述的装置,其特征在于,所述第一载波是预配置的,或者由网络设备或锚点终端配置的。
  28. 根据权利要求24至27任一项所述的装置,其特征在于,所述第一载波支持半静态变化,或者支持动态变化。
  29. 根据权利要求24至28任一项所述的装置,其特征在于,所述第一载波为第一终端的主载波。
  30. 根据权利要求24至29任一项所述的装置,其特征在于,
    在所述第一载波上发送的信息中携带第一指示信息,所述第一指示信息用于指示所述信息所在的载波为所述第一载波;
    或者,
    在任一载波上发送的信息中携带第二指示信息,所述第二指示信息用于确定所述第一载波。
  31. 根据权利要求24至30任一项所述的装置,其特征在于,所述第一信息携带于侧行控制信息SCI中,或者携带于媒体接入控制单元MAC CE信令中,或者携带于基于PC5接口的无线链路控制PC5-RRC信令中。
  32. 根据权利要求24至31任一项所述的装置,其特征在于,对于n个载波中的每一个载波,将所述载波作为所述第一载波,所述第二载波为所述n个载波中除所述第一载波之外的一个载波,n为大于1的整数。
  33. 根据权利要求24至31任一项所述的装置,其特征在于,将n个载波中的一个载波作为所述第一载波,所述第二载波为所述n个载波中除所述第一载波之外的一个载波,n为大于1的整数。
  34. 根据权利要求24至33任一项所述的装置,其特征在于,所述第二载波上的SL发送情况,包括:
    第一终端在所述第二载波上的SL发送情况;
    和/或,
    除第一终端外的至少一个其他终端在所述第二载波上的SL发送情况。
  35. 一种侧行链路SL通信装置,其特征在于,所述装置包括:
    接收模块,用于接收第一终端在第一载波上发送的第一信息,所述第一信息用于指示至少一个第二载波上的SL发送情况,所述第一载波和所述第二载波是不同的载波。
  36. 根据权利要求35所述的装置,其特征在于,所述第一信息包括以下至少之一:
    处于激活状态的第二载波的索引列表;
    所述至少一个第二载波对应的部分带宽BWP索引;
    所述至少一个第二载波对应的资源池索引;
    所述至少一个第二载波对应的时域偏移量;
    所述至少一个第二载波对应的频域偏移量;
    所述至少一个第二载波对应的SL传输资源预留周期;
    所述至少一个第二载波对应的参数集;
    所述至少一个第二载波上可用的资源池信息。
  37. 根据权利要求35或36所述的装置,其特征在于,所述第一载波的数量为一个或多个。
  38. 根据权利要求35至37任一项所述的装置,其特征在于,所述第一载波是预配置的,或者由网络设备或锚点终端配置的。
  39. 根据权利要求35至38任一项所述的装置,其特征在于,所述第一载波支持半静态变化,或者支持动态变化。
  40. 根据权利要求35至39任一项所述的装置,其特征在于,所述第一载波为所述第一终端的主载波。
  41. 根据权利要求35至40任一项所述的装置,其特征在于,
    在所述第一载波上发送的信息中携带第一指示信息,所述第一指示信息用于指示所述信息所在的载波为所述第一载波;
    或者,
    在任一载波上发送的信息中携带第二指示信息,所述第二指示信息用于确定所述第一载波。
  42. 根据权利要求35至41任一项所述的装置,其特征在于,所述第一信息携带于侧行控制信息SCI中,或者携带于媒体接入控制单元MAC CE信令中,或者携带于基于PC5接口的无线链路控制PC5-RRC信令中。
  43. 根据权利要求35至42任一项所述的装置,其特征在于,对于n个载波中的每一个载波,将 所述载波作为所述第一载波,所述第二载波为所述n个载波中除所述第一载波之外的一个载波,n为大于1的整数。
  44. 根据权利要求35至42任一项所述的装置,其特征在于,将n个载波中的一个载波作为所述第一载波,所述第二载波为所述n个载波中除所述第一载波之外的一个载波,n为大于1的整数。
  45. 根据权利要求35至44任一项所述的装置,其特征在于,所述第二载波上的SL发送情况,包括:
    所述第一终端在所述第二载波上的SL发送情况;
    和/或,
    除所述第一终端外的至少一个其他终端在所述第二载波上的SL发送情况。
  46. 根据权利要求35至45任一项所述的装置,其特征在于,
    所述接收模块还用于根据所述第二载波上的SL发送情况,接收所述至少一个第二载波上发送的SL数据;
    和/或,
    所述装置还包括处理模块,用于根据所述第二载波上的SL发送情况,执行与所述至少一个第二载波相关的资源排除和/或资源选择。
  47. 一种终端设备,其特征在于,所述终端设备包括处理器和存储器,所述存储器中存储有计算机程序,所述处理器执行所述计算机程序以实现如权利要求1至11任一项所述的方法,或者如权利要求12至23任一项所述的方法。
  48. 一种计算机可读存储介质,其特征在于,所述存储介质中存储有计算机程序,所述计算机程序用于被处理器执行,以实现如权利要求1至11任一项所述的方法,或者如权利要求12至23任一项所述的方法。
  49. 一种芯片,其特征在于,所述芯片包括可编程逻辑电路和/或程序指令,当所述芯片运行时,用于实现如权利要求1至11任一项所述的方法,或者如权利要求12至23任一项所述的方法。
  50. 一种计算机程序产品,其特征在于,所述计算机程序产品包括计算机指令,所述计算机指令存储在计算机可读存储介质中,处理器从所述计算机可读存储介质读取并执行所述计算机指令,以实现如权利要求1至11任一项所述的方法,或者如权利要求12至23任一项所述的方法。
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018177109A1 (zh) * 2017-03-28 2018-10-04 中兴通讯股份有限公司 数据传输方法、装置、终端及存储介质
CN110149183A (zh) * 2018-02-13 2019-08-20 华为技术有限公司 通信设备
WO2020047856A1 (zh) * 2018-09-07 2020-03-12 Oppo广东移动通信有限公司 配置信息的传输方法和终端设备
WO2022110188A1 (zh) * 2020-11-30 2022-06-02 华为技术有限公司 侧行链路载波管理方法、装置和系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018177109A1 (zh) * 2017-03-28 2018-10-04 中兴通讯股份有限公司 数据传输方法、装置、终端及存储介质
CN110149183A (zh) * 2018-02-13 2019-08-20 华为技术有限公司 通信设备
WO2020047856A1 (zh) * 2018-09-07 2020-03-12 Oppo广东移动通信有限公司 配置信息的传输方法和终端设备
WO2022110188A1 (zh) * 2020-11-30 2022-06-02 华为技术有限公司 侧行链路载波管理方法、装置和系统

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CATT: "Multi-Carrier Operation for Sidelink V2X", 3GPP DRAFT; R2-168109_MULTI-CARRIER OPERATION FOR PC5-BASED V2X, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. Reno, USA; 20161114 - 20161118, 13 November 2016 (2016-11-13), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051177800 *

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