WO2021081898A1 - 通信方法和通信装置 - Google Patents

通信方法和通信装置 Download PDF

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Publication number
WO2021081898A1
WO2021081898A1 PCT/CN2019/114727 CN2019114727W WO2021081898A1 WO 2021081898 A1 WO2021081898 A1 WO 2021081898A1 CN 2019114727 W CN2019114727 W CN 2019114727W WO 2021081898 A1 WO2021081898 A1 WO 2021081898A1
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WIPO (PCT)
Prior art keywords
slrb
domain
carrier
terminal device
information
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PCT/CN2019/114727
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English (en)
French (fr)
Inventor
彭文杰
王君
戴明增
范强
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2019/114727 priority Critical patent/WO2021081898A1/zh
Priority to CN201980100390.0A priority patent/CN114402637A/zh
Publication of WO2021081898A1 publication Critical patent/WO2021081898A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management

Definitions

  • This application relates to the field of communication, and more specifically, to a communication method and communication device.
  • the Internet of Vehicles (vehicle to everthing, V2X) is the key technology of the intelligent transportation system. It is considered to be one of the fields with the most industrial potential and the clearest market demand in the Internet of Things system. It has wide application space, large industrial potential, and social benefits. Strong characteristics, to promote the innovation and development of the automobile and information and communication industries, to build new models and new business formats for automobiles and transportation services, and to promote unmanned driving, assisted driving, intelligent driving, connected driving, intelligent connected driving, autonomous driving, car sharing, etc. The innovation and application of technology to improve the efficiency and safety of traffic is of great significance.
  • the Internet of Vehicles generally refers to the realization of vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to-infrastructure (V2I), vehicle-to-infrastructure (V2I), vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), and vehicle-to-network (V2V) through the provision of vehicle information through sensors and on-board terminal equipment mounted on the vehicle to Network, V2N) and a communication network for mutual communication between vehicles to pedestrians (V2P).
  • V2N vehicle to Network
  • V2P vehicle-to-network
  • the communication link for direct communication between a terminal device and other terminal devices can be called a side link or a side link (SL).
  • the present application provides a communication method and communication device, which can improve the reliability of side-chain data transmission by configuring a repetition function for a sidelink radio bearer (SLRB).
  • SLRB sidelink radio bearer
  • a communication method including: a terminal device receives SL carrier configuration information sent by a network device, where the SL carrier configuration information includes information of n SL carriers, n ⁇ 2, and n is an integer. Then, the terminal device selects a corresponding SL carrier from the n SL carriers for each of the m logical channels corresponding to the first SLRB, m ⁇ 1, and m is an integer, and the first SLRB is configured Repeat function, the first SLRB is a radio bearer between the terminal device and other terminal devices.
  • the network device configures the SLRB of the terminal device with a repeat function, and the terminal device selects a suitable SL carrier for the logical channel corresponding to the SLRB from the SL carrier configured by the network device.
  • exemplary beneficial effects include: Reliability of chain data transmission.
  • the configuration of the repetition function of the first SLRB is specifically as follows: the first SLRB corresponds to multiple logical channels, and the multiple logical channels are used to transmit the same data.
  • exemplary beneficial effects include: enabling the terminal device to send data and its copies through different logical channels, which can improve the reliability of side chain data transmission and reduce the delay caused by subsequent retransmissions that may occur.
  • the n SL carriers are all SL carriers configured by the network device for the first SLRB.
  • exemplary beneficial effects include: the SL carrier selection range that can make the terminal device select the SL carrier for the logical channel corresponding to the SLRB is larger, and avoids that the terminal device cannot select the SL carrier due to the pre-restriction of the network device.
  • the problem of selecting the appropriate SL carrier for the logical channel corresponding to the SLRB helps to ensure that the logical channel corresponding to the SLRB can correspond to the appropriate SL carrier.
  • the m logical channels are part or all of all logical channels corresponding to the first SLRB.
  • exemplary beneficial effects include: enabling the terminal device to select the corresponding SL carrier for all the logical channels corresponding to the first SLRB at one time, or enabling the terminal device to assign all the logical channels corresponding to the first SLRB one by one Selecting the corresponding SL carrier increases the flexibility of SL carrier selection.
  • each logical channel of all logical channels corresponding to the first SLRB corresponds to at least one SL carrier among the n SL carriers, and any two of all logical channels corresponding to the first SLRB There is no intersection between the SL carriers corresponding to each logical channel.
  • exemplary beneficial effects include: the data and repeated data of the SLRB can be transmitted through different SL carriers, thereby ensuring the frequency diversity gain.
  • the SL carrier configuration information further includes information of at least one SL transmission resource pool corresponding to each SL carrier of the n SL carriers.
  • exemplary beneficial effects include: the SL can be more specifically instructed to send resources.
  • the terminal device selects a corresponding SL carrier from the n SL carriers for each of the m logical channels corresponding to the first SLRB, including : The terminal device determines from the n SL carriers the carrier corresponding to the transmission resource pool with available SL resources; the terminal device determines the m logical channels from the carriers corresponding to the transmission resource pool with available SL resources Each logical channel in selects the corresponding SL carrier.
  • exemplary beneficial effects include: it is possible to ensure that the terminal device selects an SL carrier with available SL resources for the logical channel corresponding to the SLRB.
  • the terminal device selects a corresponding SL carrier from the n SL carriers for each of the m logical channels corresponding to the first SLRB, including :
  • the terminal device determines the w SL carriers with the best measurement results among the measurement results corresponding to the n SL carriers, and the measurement results are channel busy ratio (CBR) or channel quality indication (CQI) , W ⁇ n, and w is an integer;
  • the terminal device selects at least one SL carrier for each of the m logical channels from the w SL carriers, where the at least one SL carrier is the logical channel Part or all of the corresponding SL carriers.
  • exemplary beneficial effects include: it can be ensured that the different logical channels corresponding to the SLRB correspond to the SL carriers with the SL resources with better measurement results, or in other words, the SL carriers with the SL resources with better measurement results can be
  • the different logical channels corresponding to the SLRB are evenly distributed in correspondence, which can prevent the link quality gap between the SL carriers corresponding to the different logical channels corresponding to the SLRB from being too large, thereby improving the reliability of side chain transmission.
  • the w SL carriers with the best measurement results may mean that the w measurement results are better than the remaining n-w measurement results.
  • the terminal device selects a corresponding logical channel from the n SL carriers for each of the m logical channels corresponding to the first side-chain radio bearer SLRB
  • the SL carrier includes: when the terminal device satisfies the trigger condition, selecting a corresponding SL carrier from the n SL carriers for each of the m logical channels corresponding to the first SLRB.
  • exemplary beneficial effects include: under certain conditions, the terminal device can select the SL carrier for the logical channel corresponding to the SLRB, which improves the flexibility of the execution subject of the SL carrier selection.
  • the trigger condition may be that the network device activates the repetition function of the first SLRB, or the SL carrier with the best measurement result among the n SL carriers does not correspond to any logical channel in the first SLRB, or
  • the measurement results of the SL carriers corresponding to the first SLRB are worse than those of the SL carriers that do not correspond to the first SLRB, or there are measurement results in the SL carriers that do not correspond to the first SLRB than the SL corresponding to the first SLRB
  • the carrier measurement results are all good SL carriers.
  • exemplary beneficial effects include: the SL carrier selection can be triggered at an appropriate time, and it can better ensure that the logical channel corresponding to the SLRB can correspond to the appropriate SL carrier.
  • the terminal device receiving side-chain SL carrier configuration information sent by the network device includes: the terminal device receives the SL configuration information sent by the network device, and the SL configuration information includes the SL carrier configuration information, where the SL configuration information is also used to indicate the initial correspondence between each logical channel and the SL carrier among all the logical channels corresponding to the first SLRB.
  • exemplary beneficial effects include: it can be ensured that the data and copy of the SLRB can be sent according to the initial correspondence before the terminal device selects the SL carrier.
  • the method further includes: the terminal device sends first indication information to the network device, where the first indication information is used to indicate each of the m logical channels Correspondence between logical channels and SL carriers.
  • exemplary beneficial effects include: the terminal device reports to the network device the corresponding relationship between the logical channel and the SL carrier determined by the terminal device, which is beneficial for the network device to perform subsequent resource allocation according to the corresponding relationship between the logical channel and the SL carrier. So that the network equipment can better manage the SL carrier, for example, better configure the above-mentioned initial correspondence.
  • the method further includes: after the terminal device selects the corresponding SL carrier for the first logical channel of the m logical channels, the terminal device transmits on the first SL carrier the buffer corresponding to the first SL carrier is not transmitted Finished data.
  • exemplary beneficial effects include: it can be ensured that after the corresponding relationship changes, the data that has not been sent before the change can be sent in time.
  • the correspondence between each logical channel of all logical channels corresponding to the first SLRB and the SL carrier is such that at least one of the following is satisfied: repeated grouping
  • the data convergence protocol (packet data convergence protocol, PDCP) protocol data unit (protocol data unit, PDU) is placed in the buffer corresponding to different SL carriers; the repeated PDCP PDU is encapsulated in different media access control protocol data units ( media access element (MAC) PDU.
  • PDCP packet data convergence protocol
  • PDU protocol data unit
  • MAC media access element
  • the SL carrier configuration information may be carried by a radio resource control (radio resource control, RRC) message or a broadcast message.
  • RRC radio resource control
  • the RRC message may also be referred to as RRC signaling.
  • exemplary beneficial effects include: the network device can flexibly deliver the SL carrier configuration information.
  • a communication method including: a network device sends side-chain SL carrier configuration information, the SL carrier configuration information includes information about n SL carriers, n ⁇ 2, and n is an integer; the network device receives the terminal The first indication information sent by the device, the first indication information is used to indicate the correspondence between each logical channel of the m logical channels corresponding to the SLRB of the first side chain radio bearer and the SL carrier, m ⁇ 1, and m is an integer .
  • the first SLRB is configured with a repeat function
  • the first SLRB is a radio bearer between the terminal device and other terminal devices.
  • the reliability of data transmission can be improved.
  • the data in the logical channel can be sent through a suitable SL carrier, thereby further improving the reliability of data transmission.
  • the terminal device reports the determined correspondence between the logical channel and the SL carrier to the network device, which is beneficial for the network device to perform subsequent resource allocation according to the correspondence between the logical channel and the SL carrier.
  • a communication method including: a terminal device receives SL carrier configuration information and SLRB configuration information sent by a network device, where the SL carrier configuration information is used to configure n SL carriers, and the SLRB configuration information is used to The first SLRB is configured, and the SLRB configuration information is used to indicate that the first SLRB corresponds to a first destination identifier (DST ID), the first SLRB is configured with a repeat function, and the first SLRB is for the terminal device and other For the radio bearer between terminal devices, n ⁇ 2, and n is an integer.
  • the terminal device receives first information sent by the network device, where the first information is used to indicate the first destination identifier and the corresponding relationship between each of the m logical channels corresponding to the first SLRB and the SL carrier , M ⁇ 1, and m is an integer.
  • a communication method including: a network device sends SL carrier configuration information and SLRB configuration information to a terminal device, where the SL carrier configuration information is used to configure n SL carriers, and the SLRB configuration information is used to configure The first SLRB, and the SLRB configuration information is used to indicate that the first SLRB corresponds to the first destination identifier, the first SLRB is configured with a repeat function, and the first SLRB is a radio bearer between the terminal device and other terminal devices.
  • ⁇ 2 and n is an integer.
  • the network device sends first information to the terminal device, where the first information is used to indicate the first destination identifier and the corresponding relationship between each of the m logical channels corresponding to the first SLRB and the SL carrier, m ⁇ 1, and m is an integer.
  • exemplary beneficial effects include: the network device can flexibly adjust the correspondence between the logical channel of the SLRB and the SL carrier, and it can better ensure that the logical channel corresponding to the SLRB can correspond to a suitable SL carrier.
  • the configuration of the repetition function of the first SLRB is specifically as follows: the first SLRB corresponds to multiple logical channels, and the multiple logical channels are used to transmit the same data.
  • the m logical channels are some or all of the logical channels corresponding to the first SLRB
  • the SL carrier configuration information and the SLRB configuration information may be carried in an RRC message or a broadcast message.
  • the RRC message may also be referred to as RRC signaling.
  • each logical channel of all logical channels corresponding to the first SLRB corresponds to at least one SL carrier among the n SL carriers, and any two of all logical channels corresponding to the first SLRB There is no intersection between the SL carriers corresponding to each logical channel.
  • the first information is a media access control control element (MAC CE).
  • MAC CE media access control control element
  • the first information including a first domain, the second domain and a second domain corresponding to F i v domain.
  • the first domain includes information indicating the first destination identifier.
  • the second field includes the first SLRB identifier, or the second field includes an index corresponding to the first SLRB identifier.
  • F i for each field occupies at least one bit, the value i is 0 to v-1, and i is an integer, the number of carriers v SL can support up for the terminal device, v ⁇ n, and v is an integer, the domain F i corresponding to i + 1-th carrier SL SL SL carrier identification carrier identifier indicated in the list, and instructs the carrier to which the logical channel SL corresponding to the m logical channel, the F i v a corresponding domain
  • the v SL carriers include the n SL carriers.
  • the first information includes a first field, m and each second second region domain F i corresponding to the v-domain.
  • the first domain includes information indicating the first destination identifier.
  • the m second domains have a one-to-one correspondence with the m logical channels, and the second domain includes the corresponding logical channel identifier, or the second domain includes the position of the corresponding logical channel identifier in the logical channel identifier list.
  • Each F i domain occupies one bit, the value of i is 0 to v-1, and i is an integer, v is the maximum number of SL carriers that the terminal device can support, v ⁇ n, and v is an integer, the F The i domain corresponds to the SL carrier indicated by the i+1th SL carrier identifier in the SL carrier identifier list, and indicates whether the SL carrier corresponds to the logical channel corresponding to the second domain corresponding to the F i domain.
  • the v F The v SL carriers corresponding to the i domain include the n SL carriers.
  • the first information further includes a reserved bit, and the reserved bit is used to maintain byte alignment.
  • the method before the terminal device receives the first information sent by the network device, the method further includes: the terminal device reports the first destination identifier and the first destination to the network device Identifies the corresponding SL frequency information.
  • the method before the network device sends the first information to the terminal device, the method further includes: the network device receives the first destination identifier and the first destination identifier reported by the terminal device Corresponding SL frequency information.
  • a communication method including: a terminal device receives side-chain radio bearer SLRB configuration information sent by a network device, where the SLRB configuration information is used to configure p SLRBs and to indicate the p SLRBs and the first purpose Corresponding to the identifier, the p SLRBs are configured with a repeat function, p ⁇ 1, and p is an integer; the terminal device receives the first information sent by the network device, and the first information is used to indicate the first destination identifier and the p The SLRB that activates the repeat function in the SLRB, and/or the SLRB that deactivates the repeat function.
  • exemplary beneficial effects include: the network device can flexibly adjust the SLRB repeat function, and can help the terminal device better manage the SLRB configured by the network device.
  • a communication method including: a network device sends side-chain bearer SLRB configuration information to a terminal device, where the SLRB configuration information is used to configure p SLRBs and to indicate that the p SLRBs correspond to a first destination identifier ,
  • the p SLRBs are configured with a repeat function, p ⁇ 1, and p is an integer
  • the network device sends first information to the terminal device, and the first information is used to indicate the first destination identifier and the activation of the p SLRBs Repeat function SLRB and/or deactivate repeat function SLRB.
  • exemplary beneficial effects include: the network device can flexibly activate/deactivate the repetitive function of the SLRB according to actual needs, thereby helping to improve system performance.
  • the configuration of the repetition function of the first SLRB is specifically as follows: the first SLRB corresponds to multiple logical channels, and the multiple logical channels are used to transmit the same data.
  • the SLRB configuration information may be carried in an RRC message or a broadcast message.
  • the RRC message may also be referred to as RRC signaling.
  • the first information is MAC CE.
  • exemplary beneficial effects include: the repetitive function of SLRB can be quickly activated/deactivated.
  • the first information includes the first domain and p B i domains.
  • the first domain includes information indicating the first destination identifier.
  • Each B i domain occupies one bit. The value of i is 0 to p-1, and i is an integer.
  • the B i domain corresponds to the SLRB indicated by the i+1th SLRB identifier in the SLRB identifier list, and indicates Whether the repeat function of the SLRB is in the activated state or the deactivated state, the p SLRB identifiers in the SLRB identifier list are arranged in ascending or descending order of the SLRB identifiers.
  • the first information includes the first domain and v B i domains, where v is the maximum number of SLRBs that can be configured for the destination address corresponding to each destination identifier, v> p, and v is an integer.
  • the first domain includes information indicating the first destination identifier.
  • Each B i domain occupies one bit. The value of i is 0 to v-1, and i is an integer.
  • the B i domain corresponds to the SLRB indicated by the i+1th SLRB identifier in the SLRB identifier list.
  • the SLRB corresponding to the B i domain is configured with a repetition function, and the B i domain indicates whether the repetition function of the corresponding SLRB is in an activated state or a deactivated state, and the v SLRBs corresponding to the v B i domains include the p SLRBs.
  • the first information is also used to indicate the SLRB that activates the repeat function and/or the SLRB that deactivates the repeat function in the SLRBs corresponding to the w-1 target identifiers other than the first target identifier.
  • 1 ⁇ w ⁇ n, n is a preset integer.
  • exemplary beneficial effects include: when w is small, the SLRB that activates the repeat function and/or the SLRB that deactivates the repeat function is indicated through such a format, which can save signaling overhead.
  • the terminal device ignores the B i domain; and/or, If the SLRB corresponding to the B i domain is not configured with a repeat function, the terminal device ignores the B i domain.
  • the network device sets the B i domain to include a default value; and /Or, if the SLRB corresponding to the B i domain is not configured with a repeat function, the network device sets the B i domain to include the default value.
  • the first information further includes a reserved bit, and the reserved bit is used to maintain byte alignment.
  • the first information includes s DST j fields and r groups of v B i fields, 2 ⁇ r ⁇ s, and s and r are both integers, s It is the maximum number of destination identifiers that the terminal device can support or the number of destination identifiers configured for the terminal device for the network device.
  • each DST j field occupies one bit, the value of j is 0 to s-1, and j is an integer.
  • the DST j field corresponds to the j+1th destination identifier in the destination identifier list, and the DST j
  • the domain is used to indicate whether there is a group of v B i domains corresponding to the DST j domain in the first information, and the destination identifiers corresponding to the s DST j domains include the first destination identifier.
  • the group of v r and the r B i fields correspond to the fields DST j s DST j th domain, the domain r a DST j of v there is a set of fields corresponding to the B i s a field indicating DST j Of the r DST j fields, each B i field occupies one bit, the value of i is from 0 to v-1, and i is an integer, v is the maximum number of SLRBs that the purpose identifier can correspond to, and v is an integer.
  • the SLRB corresponding to a set of v B i domains corresponding to the DST j domain of the first destination identifier includes the p SLRBs.
  • the first information is also used to indicate the SLRB that activates the repeat function and/or the SLRB that deactivates the repeat function in the SLRBs corresponding to the w-1 target identifiers other than the first target identifier.
  • W>n W>n
  • n is a preset integer.
  • the terminal device ignores the B i domain; and/or, If the SLRB corresponding to the B i domain is not configured with a repeat function, the terminal device ignores the B i domain.
  • the network device sets the Bi domain to include a default value; and/ Or, if the SLRB corresponding to the B i domain is not configured with a repeat function, the network device sets the B i domain to include the default value.
  • a communication device including a method for executing the method in any one of the first, third, or fifth aspects, or any one of the first, third, or fifth aspects. Individual modules or units.
  • a communication device including a method for executing the method in any one of the second, fourth, or sixth aspects, or any one of the second, fourth, or sixth aspects. Individual modules or units.
  • an apparatus including a processor.
  • the processor may be used to execute the related instructions, so that the device executes the method in any one of the foregoing first, third, or fifth aspects, or any one of the first, third, or fifth aspects.
  • the device may further include a memory coupled with the processor, and further related instructions are stored in the memory.
  • the device may further include an interface circuit, and the interface circuit is coupled with the processor.
  • an apparatus including a processor.
  • the processor may be used to execute related instructions, so that the device executes the method in any one of the foregoing second, fourth, or sixth aspects, or the second, fourth, or sixth aspect.
  • the device may further include a memory coupled with the processor, and further related instructions are stored in the memory.
  • the device may further include an interface circuit, and the interface circuit is coupled with the processor.
  • a processor including: an input circuit, an output circuit, and a processing circuit.
  • the processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor executes the method in any one of the first aspect to the sixth aspect or any one of the first aspect to the sixth aspect .
  • the above-mentioned device or processor may be a chip
  • the input circuit may be an input pin
  • the output circuit may be an output pin
  • the processing circuit may be a transistor, a gate circuit, a flip-flop, and various logic circuits.
  • the input signal received by the input circuit may be received and input by, for example, but not limited to, a receiver
  • the signal output by the output circuit may be, for example, but not limited to, output to the transmitter and transmitted by the transmitter
  • the circuit can be the same circuit, which is used as an input circuit and an output circuit at different times.
  • the embodiments of the present application do not limit the specific implementation manners of the processor and various circuits.
  • a processing device including a processor and a memory.
  • the processor is used to read instructions stored in the memory, receive signals through a receiver, and transmit signals through a transmitter to execute any one of the first to sixth aspects or any one of the first to sixth aspects. In the method.
  • processors there are one or more processors and one or more memories.
  • the memory may be integrated with the processor, or the memory and the processor may be provided separately.
  • the memory can be a non-transitory (non-transitory) memory, such as a read only memory (ROM), which can be integrated with the processor on the same chip, or can be set in different On the chip, the embodiment of the present application does not limit the type of the memory and the setting mode of the memory and the processor.
  • ROM read only memory
  • sending SL carrier configuration information may be a process of outputting control information from the processor
  • receiving SL carrier configuration information may be a process of receiving SL carrier configuration information by the processor.
  • the processed output data may be output to the transmitter, and the input data received by the processor may come from the receiver.
  • the transmitter and receiver can be collectively referred to as a transceiver.
  • the processing device in the above-mentioned twelfth aspect may be a chip, and the processor may be implemented by hardware or software.
  • the processor When implemented by hardware, the processor may be a logic circuit, an integrated circuit, etc.; When implemented, the processor may be a general-purpose processor, which is implemented by reading software codes stored in the memory.
  • the memory may be integrated in the processor, may be located outside the processor, and exist independently.
  • a computer program product includes: a computer program (also called code, or instruction), when the computer program is executed, the computer executes the first to sixth aspects. Aspect and the method in any one of the possible implementation manners of the first aspect to the sixth aspect.
  • a computer-readable medium stores a computer program (also called code, or instruction) when it runs on a computer, so that the computer executes the first aspect to the first aspect.
  • a computer program also called code, or instruction
  • the method in the six aspects and any one of the possible implementation manners of the first aspect to the sixth aspect.
  • a communication system including the aforementioned network equipment and/or terminal equipment.
  • FIG. 1 is a schematic diagram of the V2X communication architecture
  • Fig. 2 is a schematic flowchart of the communication method provided by the present application.
  • Figure 3 is a schematic diagram of the correspondence between PDCP and logical channels
  • Figure 4 is a schematic diagram before and after the corresponding relationship between the logical channel and the SL carrier is changed;
  • FIG. 5 is a schematic flowchart of another communication method provided by the present application.
  • FIG. 6 to 11 are schematic diagrams of the format of the first information provided by this application.
  • FIG. 12 is a schematic flowchart of another communication method provided by the present application.
  • FIG. 13 to 21 are schematic diagrams of the format of the first information provided by this application.
  • Fig. 22 is a schematic block diagram of a device provided by the present application.
  • FIG. 23 is a schematic structural diagram of a terminal device provided by the present application.
  • Fig. 24 is a schematic block diagram of another device provided by the present application.
  • LTE Long Term Evolution
  • FDD frequency division duplex
  • UMTS time division duplex
  • WiMAX worldwide interoperability for microwave access
  • 5G mobile communication system may include non-standalone (NSA) and/or standalone (SA).
  • the technical solution provided in this application can also be applied to machine type communication (MTC), inter-machine communication long-term evolution technology (Long Term Evolution-machine, LTE-M), and device to device (device to device, D2D) networks , Machine-to-machine (M2M) network, Internet of things (IoT) network or other networks.
  • MTC machine type communication
  • LTE-M inter-machine communication long-term evolution technology
  • D2D device to device
  • M2M Machine-to-machine
  • IoT Internet of things
  • the IoT network may include, for example, the Internet of Vehicles.
  • V2X vehicle to other devices
  • V2X vehicle to other devices
  • V2X vehicle to other devices
  • V2X vehicle to other devices
  • the V2X may include: vehicle to vehicle (V2V) communication, and the vehicle communicates with Infrastructure (vehicle to infrastructure, V2I) communication, vehicle to pedestrian communication (V2P) or vehicle to network (V2N) communication, etc.
  • V2V vehicle to vehicle
  • V2I infrastructure
  • V2P vehicle to pedestrian communication
  • V2N vehicle to network
  • the network device may be any device with a wireless transceiver function.
  • This equipment includes but is not limited to: evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC) , Base transceiver station (BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (BBU), wireless fidelity (wireless fidelity, WiFi) system Access point (AP), wireless relay node, wireless backhaul node, transmission point (TP), or transmission and reception point (TRP), etc., can also be 5G, such as NR ,
  • the gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include an active antenna unit (AAU).
  • CU implements some functions of gNB
  • DU implements some functions of gNB.
  • CU is responsible for processing non-real-time protocols and services, implementing radio resource control (RRC), and packet data convergence protocol (PDCP) The function of the layer.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • the DU is responsible for processing the physical layer protocol and real-time services, and realizes the functions of the radio link control (RLC) layer, the media access control (MAC) layer, and the physical (PHY) layer.
  • RLC radio link control
  • MAC media access control
  • PHY physical layer
  • the network device may be a device that includes one or more of a CU node, a DU node, and an AAU node.
  • the CU can be divided into network equipment in the access network (radio access network, RAN), and the CU can also be divided into network equipment in the core network (core network, CN), which is not limited in the embodiment of this application. .
  • the terminal equipment may be referred to as user equipment (UE), terminal (terminal), mobile station (MS), mobile terminal (mobile terminal), etc.; the terminal equipment may also be A radio access network (RAN) communicates with one or more core networks.
  • the terminal device can also be called an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device.
  • the terminal device can also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, vehicles with communication capabilities, wearable devices, and terminal devices in the future 5G network.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • Figure 1 shows a schematic diagram of the V2X communication architecture.
  • the system includes at least two terminal devices (such as terminal device 110 and terminal device 120) and one network device 130.
  • the terminal device 110 can transmit to the terminal device 120 through the PC5 interface, and the network device 130 can communicate with the terminal device 110 through the Uu interface.
  • the PC5 interface is a direct communication interface between terminal devices with V2X communication function, and the direct communication link between terminal devices with V2X communication function is also defined as a side link or side link (SL) .
  • SL side link or side link
  • the communication method provided in this application can be applied to the system shown in FIG. 1.
  • the terminal device may correspond to the terminal device 110 in FIG. 1
  • the network device may correspond to the network device 130 in FIG. 1.
  • the communication method provided in this application will be described below.
  • the embodiments shown below take the interaction between a network device and a terminal device as an example to describe in detail the method provided by the embodiment of the present application. But this should not constitute any limitation to this application.
  • the terminal device shown in the following embodiments may be replaced with a component (such as a chip, a chip system, or a circuit, etc.) configured in the terminal device.
  • the network device shown in the following embodiments can also be replaced with a component (such as a chip, a chip system, or a circuit, etc.) configured in the network device.
  • the embodiments shown below do not specifically limit the specific structure of the execution body of the method provided in the embodiments of the application, as long as the program can be run and recorded with the code of the method provided in the embodiments of the application to provide the method according to the embodiments of the application.
  • the execution subject of the method provided in the embodiments of the present application may be a terminal device or a network device, or a functional module in the terminal device or the network device that can call and execute the program.
  • Fig. 2 is a schematic flowchart of the communication method provided by the present application. The steps in the method 200 shown in FIG. 2 will be described below.
  • the terminal device reports the side chain information to the network device.
  • the network device receives the side chain information sent by the terminal device.
  • the side chain information may include relevant information of at least one service that the terminal device is interested in, for example, may include the destination identifier (DST ID) of the at least one service and the SL frequency information corresponding to each DST ID.
  • the service can be a broadcast service, a unicast service or a multicast service, which is not limited in this application. Further, the service may be a V2X service.
  • the DST ID corresponding to the service may be the default layer 2 (L2) ID corresponding to the service; if a certain service is a unicast service, the corresponding DST ID of the service It may be the L2 identifier assigned to the unicast connection by the peer terminal device of the unicast connection; if a certain service is a multicast service, the DST ID corresponding to the service may be the L2 identifier of the group.
  • L2 layer 2
  • the side chain information may also include quality of service (QoS) information corresponding to each DST ID.
  • QoS information may also be reported to the network device through another message, which is not limited in this application.
  • the side-chain information may be a Sidelink UE Information (side-chain UE information) message in the protocol, but this application does not limit this.
  • S220 The network device sends SL configuration information to the terminal device.
  • the network device may determine and provide SL configuration information for the terminal device according to the corresponding relationship between the DST ID and the SL frequency information and the QoS information corresponding to the DST ID.
  • the SL configuration information may be carried through RRC signaling or broadcast messages, which is not limited in this application.
  • the SL configuration information may include SLRB configuration information and SL carrier configuration information.
  • the SLRB configuration information is used to configure at least one SLRB.
  • the SLRB configuration information may include at least one SLRB indication information and the logical channel corresponding to each SLRB.
  • the indication information of the SLRB may be SLRB ID
  • the indication information of the logical channel may be a logical channel identifier (logical channel identifier, LCID), but this application is not limited, but it should be noted that for ease of description In the following description, SLRB ID indicates SLRB and LCID indicates logical channel as examples.
  • the SLRB configuration information may also indicate the DST ID corresponding to each SLRB, where one DST ID may correspond to one or more SLRBs.
  • part or all of the SLRB in the SLRB configured by the network device through the SL configuration information may correspond to part or all of the DST ID in at least one DST ID reported by the terminal device to the network device.
  • the SLRB configuration information when the SL configuration information is carried by a broadcast message, the SLRB configuration information may only indicate at least one SLRB and the logical channel corresponding to each SLRB. At this time, the method may not include S210.
  • the SLRB configuration information when the SL configuration information is carried by the RRC message, the SLRB configuration information can also be used to indicate the DST ID corresponding to each SLRB. At this time, the method may include S210.
  • the SLRB configuration information may also indicate whether each SLRB is configured with a repeat function.
  • the SLRB configured with the repeat function can correspond to multiple logical channels, and the multiple logical channels can transmit the same data.
  • the SLRB that is not configured with the repeat function corresponds to only one logical channel.
  • the SLRB configured with the repetition function corresponds to a packet data convergence protocol (PDCP) entity with the repetition function enabled and multiple radio link control (RLC) entities, each The RLC entity corresponds to a logical channel, and the PDCP entity can copy a PDCP protocol data unit (protocol data unit, PDU) into multiple copies, and deliver them to the multiple RLC entities for transmission.
  • PDCP packet data convergence protocol
  • RLC radio link control
  • the first SLRB is a radio bearer between the terminal device and other terminal devices.
  • the first SLRB can correspond to two RLC entities.
  • One RLC entity corresponds to logical channel #1
  • the other RLC entity corresponds to logical channel #2.
  • the same PDCP PDU can pass through logical channel #1 and logical channel #. 2 send.
  • the SL carrier configuration information is used to configure n SL carriers.
  • the SL carrier configuration information may include n frequencies, and each frequency corresponds to one SL carrier. Wherein, n ⁇ 2, and n is an integer. It should be understood that the SL carrier is used for SL communication.
  • the SL carrier configuration information may further include one or two of the following: frequency information of each SL carrier in the n SL carriers; At least one SL sends information about the resource pool.
  • the terminal device After obtaining the SL configuration information, the terminal device can determine the correspondence between some or all of the logical channels corresponding to the SLRB configured with the repeat function and the SL carrier.
  • the first SLRB is taken as an example, and description is made in conjunction with S230.
  • the terminal device determines the correspondence between the m logical channels and the SL carrier.
  • the terminal device selects a corresponding SL carrier for each of the m logical channels corresponding to the first SLRB from the n SL carriers, where 1 ⁇ m ⁇ n, and m is an integer.
  • the m logical channels are part or all of the logical channels of all logical channels corresponding to the first SLRB. That is to say, at a certain moment, the terminal device can determine (that is, autonomously determine) the correspondence between some or all of the logical channels and the SL carrier among all the logical channels corresponding to the first SLRB. For example, at time t1, the terminal device can independently determine the corresponding relationship between each logical channel and SL carrier in all the logical channels corresponding to the first SLRB.
  • the terminal device can determine the logical channel and SL carrier at time t1. For example, the terminal device can only change the corresponding relationship between some logical channels and SL carriers in all the logical channels corresponding to the first SLRB, or change all the logical channels and SL carriers in all the logical channels corresponding to the first SLRB. Correspondence of the carrier.
  • the n SL carriers may be all SL carriers configured by the network device for the first SLRB, or the network device may only configure n SL carriers for the first SLRB.
  • This can avoid pre-restrictions, such as protocols or network equipment stipulating that part of the SL carriers configured by the network equipment can only correspond to part of the logical channels of the SLRB, and the other part of the carriers can only correspond to another part of the logical channels of the SLRB, causing the terminal
  • the device cannot select a suitable SL carrier for any logical channel corresponding to the SLRB within the range of the SL carrier configured by the network device.
  • each logical channel among all logical channels corresponding to the first SLRB corresponds to at least one SL carrier among the n SL carriers, and any two logical channels among all logical channels corresponding to the first SLRB correspond to There is no intersection between the SL carriers.
  • each logical channel corresponds to an SL carrier set
  • the SL carrier set includes one or more of the n SL carriers
  • two SL carrier sets corresponding to any two logical channels have no intersection. It should be understood that the number of SL carriers corresponding to any two logical channels may be the same or different, which is not limited in this application.
  • S210 and S220 are optional steps, that is, the execution of S230 may not depend on S210 and S220. What this means here is that the terminal device only needs to know the n SL carriers and the logical channel (or LCID) corresponding to the first SLRB, and can execute S230 at an appropriate time, and does not need to execute S210 and S220 before executing S230. step.
  • S230 may be executed when the trigger condition is met.
  • the trigger condition may be that the network device activates the repetition function of the first SLRB, or the SL carrier with the best measurement result among the n SL carriers does not correspond to any logical channel in the first SLRB, or corresponds to the first SLRB The measurement results of the SL carriers are worse than those of the SL carriers that do not correspond to the first SLRB.
  • the SL configuration information may include the initial corresponding relationship of each logical channel SL carrier in all logical channels corresponding to the first SLRB. If the terminal device considers that the initial correspondence is not appropriate, S230 may be executed.
  • the reliability of data transmission can be improved.
  • the data in the logical channel can be sent through a suitable SL carrier, thereby further improving the reliability of data transmission.
  • the method may include:
  • the terminal device sends first information to the network device, where the first information is used to indicate the correspondence between each logical channel of the m logical channels and the SL carrier.
  • the terminal device reports the determined correspondence between the logical channel and the SL carrier to the network device, which is beneficial for the network device to perform subsequent resource allocation according to the correspondence between the logical channel and the SL carrier. For example, after learning that the terminal device has determined the corresponding relationship between the logical channel and the SL carrier, the network device will further receive a buffer status report (BSR) that the terminal device requests resource scheduling. According to the logical channel group carried in the BSR and the The correspondence between logical channels, based on the correspondence between logical channels and SL carriers, can determine which SL resources on the SL carriers are requested by the terminal device, and then schedule the SL resources on the corresponding SL carriers for the terminal device.
  • BSR buffer status report
  • the first information may be carried in an RRC message, but this application does not limit this.
  • the terminal device may select a corresponding SL carrier for each of the m logical channels from among the SL carriers corresponding to the resource pools with available SL resources in the resource pools corresponding to the n SL carriers.
  • the terminal device can determine which resource pools in the resource pools corresponding to the n SL carriers have available SL resources through sensing (sensing), and then the terminal device selects the resource pools corresponding to the available SL resources from the resource pools corresponding to the n SL carriers. Among the SL carriers, a corresponding SL carrier is selected for each of the m logical channels.
  • SL carrier #1 corresponds to resource pool #1
  • SL Carrier #2 corresponds to resource pool #2
  • SL carrier #3 corresponds to resource pool #3.
  • the terminal device can select from SL carrier #1 and SL carrier #2, which are logical channel #1 and logical channel, respectively #2 Select the corresponding SL carrier.
  • the terminal device can select SL carrier #1 to correspond to logical channel #1, and SL carrier #2 to correspond to logical channel #2.
  • the terminal device determines w SL carriers with the best measurement results among the measurement results corresponding to the n SL carriers, and then selects at least one of the w SL carriers for each of the m logical channels SL carrier, the at least one SL carrier is part or all of the SL carriers corresponding to the logical channel.
  • the measurement result is the channel busy ratio CBR or the channel quality indicator CQI, m ⁇ w ⁇ n, and w is an integer.
  • the terminal device may determine the measurement result of each SL carrier by measuring the n SL carriers.
  • the terminal device at the opposite end of the first SLRB may measure the n SL carriers, and report the measurement result of each SL carrier to the terminal device. Then, the terminal device can sort the obtained n measurement results, and select w measurement results with the best measurement results. It should be understood that the w measurement results are better than the remaining n-w measurement results. For example, if the measurement result is a CQI, the terminal device can sort the obtained n CQIs in the descending order of the CQI to determine the top w CQIs.
  • the terminal device can sort the obtained n CBRs in the order of CBR from small to large, and determine the top w CBRs.
  • w that is, the value of w
  • the terminal device may select at least one SL carrier for each logical channel from among the w SL carriers corresponding to the w measurement results, as part or all of the SL carriers corresponding to the logical channel.
  • the SL carrier corresponding to each logical channel may only include at least one of the w SL carriers, or the SL carrier corresponding to each logical channel may include not only at least one of the w SL carriers, but also Among the n SL carriers, other SL carriers other than the w SL carriers.
  • the opposite terminal may also directly report the w measurement results with the best measurement results and the corresponding SL carriers.
  • the terminal device determines an SL carrier whose measurement result is greater than or equal to a first preset threshold among the measurement results corresponding to the n SL carriers. If the number of SL carriers greater than or equal to the first preset threshold is greater than or equal to m, then from the SL carriers greater than or equal to the first preset threshold, or from the corresponding SL carriers greater than or equal to the first preset threshold Among the w SL carriers with the best measurement results, a corresponding SL carrier is selected for each of the m logical channels.
  • the terminal device will select the m logical from among the w SL carriers with the best measurement results from the measurement results corresponding to the n SL carriers.
  • Each logical channel in the channel selects the corresponding SL carrier. That is to say, if the number of SL carriers greater than or equal to the first preset threshold is less than m, the second method is used to determine the correspondence between the logical channel and the SL carrier.
  • the channel quality of the measurement result indicates CQI.
  • the first preset threshold and w can be configured by the network device or set by the terminal device itself, m ⁇ w ⁇ n, and w is an integer.
  • the terminal device may determine the measurement result of each SL carrier by measuring the n SL carriers.
  • the terminal device at the opposite end of the first SLRB may measure the n SL carriers, and report the measurement result of each SL carrier to the terminal device. Then, the terminal device determines a measurement result that is greater than or equal to the first preset threshold among the obtained n measurement results. If the number of measurement results that are greater than or equal to the first preset threshold is greater than or equal to m, the terminal device is the SL carrier corresponding to the measurement result that is greater than or equal to the first preset threshold.
  • Each logical channel selects the corresponding SL carrier, or the terminal device selects the SL carriers corresponding to the w measurement results with the best measurement results from the measurement results greater than or equal to the first preset threshold, among the m logical channels Each logical channel selects the corresponding SL carrier. If the number of measurement results greater than or equal to the first preset threshold is less than m, method 2 is used to select a corresponding SL carrier for each of the m logical channels.
  • the opposite terminal may also directly report greater than or equal to the first preset threshold.
  • the threshold measurement result and the corresponding SL carrier or report the w measurement results with the best measurement results among the measurement results greater than or equal to the first preset threshold and the corresponding SL carrier.
  • the terminal device determines the SL carriers whose measurement results are less than or equal to a second preset threshold in the measurement results corresponding to the n SL carriers, and then selects the m logical channels from the SL carriers less than or equal to the second preset threshold At least one SL carrier is selected for each logical channel in, and the at least one SL carrier is part or all of the SL carriers corresponding to the logical channel. If the number of SL carriers that is less than or equal to the second preset threshold is less than m, the terminal device will select the m logical from the w SL carriers with the best measurement results from the measurement results corresponding to the n SL carriers Each logical channel in the channel selects the corresponding SL carrier.
  • the second method is used to determine the correspondence between the logical channel and the SL carrier.
  • the measurement result is the channel busy ratio CBR.
  • the second preset threshold and w can be configured by the network device or set by the terminal device itself, m ⁇ w ⁇ n, and w is an integer. This method is similar to the third method and will not be detailed here.
  • the correspondence between the m logical channels and the SL carrier can be determined, that is, each logical channel of the m logical channels can be determined Corresponding SL carrier.
  • each logical channel and the SL carrier in all logical channels corresponding to the first SLRB satisfies one of the following conditions or satisfies both conditions at the same time:
  • Repeated PDCP PDUs are placed in the buffers corresponding to different SL carriers. That is, repeated PDCP PDUs will not be placed in the buffer corresponding to the same SL carrier.
  • the corresponding relationship between the logical channel of the first SLRB and the SL carrier may change.
  • the first SL carrier corresponds to the first logical channel of the first SLRB.
  • the first SL carrier corresponds to the first SLRB.
  • the second logical channel In order to improve the reliability of data transmission, it is required that repeated PDCP PDUs cannot be sent through the same SL carrier, that is, they cannot be placed in the same SL carrier buffer.
  • the corresponding relationship becomes that the second logical channel corresponds to the first SL carrier
  • the data to be transmitted on the second logical channel includes the PDCP PDU transmitted by the first logical channel on the first SL carrier
  • the PDCP PDU cannot be sent through the first SL carrier, or when changing the corresponding relationship, it is necessary to make sure that the data to be transmitted on the second logical channel does not overlap with the data transmitted by the first logical channel on the first SL carrier to determine the second
  • the logical channel corresponds to the first SL carrier.
  • duplicate PDCP PDUs of two logical channels may be allowed to be transmitted on one SL carrier.
  • the terminal device may also The unsent data in the buffer is sent on the SL carrier.
  • the first logical channel may be any logical channel among the logical channels corresponding to the first SLRB.
  • the terminal device executes S230 to determine the correspondence between the logical channel and the SL carrier as follows: logical channel #n corresponds to SL carrier #1, and logical channel #m corresponds to SL carrier #4. Based on this correspondence, when there are available resources on the SL carrier #1, the terminal device can put the data to be transmitted on the logical channel #n into the buffer 1 corresponding to the SL carrier #1 for transmission. Similarly, when there are available resources on the SL carrier #4, the terminal device can put the data to be transmitted on the logical channel #m into the buffer 4 corresponding to the SL carrier #4 for transmission. At time t2, the terminal device executes S230 again.
  • the terminal device changes the SL carrier corresponding to logical channel #m to SL carrier #2.
  • the data of the logical channel #m placed in the buffer 4 corresponding to the SL carrier #4 may not have been sent. This part of the data can be kept in the buffer 4 and continue to be sent in the SL carrier #4.
  • the data of logical channel #m can be put into buffer 2 corresponding to SL carrier #2, and sent on SL carrier #2.
  • Fig. 5 is a schematic flowchart of another communication method provided by the present application. The steps in the method 300 shown in FIG. 5 are described below.
  • the terminal device reports side chain information to the network device, and the network device sends SL configuration information to the terminal device.
  • Steps S310 to S320 are the same as S210 to S220. For details, refer to the above description of S210 to S220. It should be noted here that in the method 300, the SL configuration information is sent in the RRC connected state.
  • the network device After the network device sends the SL configuration information to the terminal device, it can configure the terminal device to configure the correspondence between some or all of the logical channels corresponding to the SLRB with the repeated function and the SL carrier.
  • the first SLRB is taken as an example, and description is made in conjunction with S330.
  • S330 The network device sends the first information to the terminal device.
  • the first information is used to indicate the first DST ID and the corresponding relationship between each of the m logical channels corresponding to the first SLRB and the SL carrier, 1 ⁇ m ⁇ n, and m is an integer.
  • the m logical channels are part or all of the logical channels of all logical channels corresponding to the first SLRB. That is, at a certain moment, the network device may configure the correspondence between some or all of the logical channels and the SL carrier among all the logical channels corresponding to the first SLRB. For example, at time t1, the network device can configure the corresponding relationship between each logical channel of all logical channels corresponding to the first SLRB and the SL carrier.
  • the network device can configure the relationship between the logical channel configured at time t1 and the SL carrier.
  • the corresponding relationship is changed.
  • the network device can only change the corresponding relationship between part of the logical channels and the SL carrier in all the logical channels corresponding to the first SLRB, or change all the logical channels and the SL carrier in all the logical channels corresponding to the first SLRB. The corresponding relationship.
  • each logical channel among all logical channels corresponding to the first SLRB corresponds to at least one SL carrier among the n SL carriers, and any two logical channels among all logical channels corresponding to the first SLRB correspond to There is no intersection between the SL carriers.
  • the reliability of data transmission can be improved.
  • the network device by configuring the corresponding relationship between the logical channel and the SL carrier by the network device, it is beneficial to realize that the data in the logical channel is sent through a suitable SL carrier, thereby further improving the reliability of data transmission.
  • the first information may be MAC CE.
  • the correspondence between the logical channel and the SL carrier can be quickly and flexibly adjusted.
  • the SL configuration information may include the initial corresponding relationship of each logical channel SL carrier in all logical channels corresponding to the first SLRB. That is, the SL configuration information may include the corresponding relationship of each logical channel SL carrier in all logical channels corresponding to the first SLRB. Subsequently, the network device can change the initial correspondence.
  • the network device can flexibly adjust the correspondence between the SL carriers and the logical channels based on the measurement results of the n SL carriers. That is, the network device may determine the correspondence between each logical channel of the m logical channels and the SL carrier based on the measurement result of the n SL carriers.
  • the network device may first determine the w SL carriers with the best measurement results among the measurement results corresponding to the n SL carriers, and then, from the w SL carriers, determine the m logical At least one SL carrier is selected for each logical channel in the channels, and the at least one SL carrier is part or all of the SL carriers corresponding to the logical channel.
  • the measurement result is the channel busy ratio CBR or the channel quality indicator CQI, m ⁇ w ⁇ n, and w is an integer.
  • This method is similar to "Method 2" in method 200, except that the measurement result in method 200 does not need to be fed back to the network device, while in this method, the measurement result needs to be fed back to the network device.
  • the terminal device can measure the SL carrier and feed back the measurement result to the network device, or the opposite terminal device of the first SLRB can measure the SL carrier and feed back the measurement result to the terminal device, and then the The terminal equipment feeds back to the network equipment.
  • the network device may also refer to "Method 3" and/or “Method 4" in the method 200 to determine the correspondence between each logical channel of the m logical channels and the SL carrier.
  • Method 3 and/or “Method 4" in the method 200 to determine the correspondence between each logical channel of the m logical channels and the SL carrier.
  • First information includes a first field, a second and second domain F i corresponding to the v-domain.
  • the first field includes information indicating the first DST ID.
  • the information indicating the first DST ID may be the first DST ID.
  • the information indicating the first DST ID may be an index corresponding to the first DST ID.
  • the index corresponding to the first DST ID may be indicated by the network device, or the index corresponding to the first DST ID is related to the position of the first DST ID in the DST ID list.
  • the index corresponding to the first DST ID is the position of the first DST ID in the DST ID list minus 1
  • the index corresponding to the first DST ID is the position of the first DST ID in the DST ID list.
  • the DST ID list is ⁇ DST ID#1, DST ID#2, DST ID#3,... ⁇ , assuming that the first DST ID is DST ID#2, then the first DST ID in the DST ID list The position is 2.
  • the index corresponding to DST ID in the DST ID list starts from 1, that is, the index corresponding to DST ID#1 is 1, then the index corresponding to the first DST ID is 2; if the index of the DST ID in the DST ID list starts from 0, That is, the index corresponding to DST ID#1 is 0, and the index corresponding to the first DST ID is 1.
  • the DST ID list is jointly maintained by terminal equipment and network equipment, and the DST ID list can include all current DST IDs.
  • the second field includes information indicating the first SLRB.
  • the information indicating the first SLRB may be the first SLRB ID or the index corresponding to the first SLRB ID.
  • the index corresponding to the first SLRB ID may be indicated by the network device, or the index corresponding to the first SLRB ID is related to the position of the first SLRB ID in the SLRB ID list.
  • the index corresponding to the first SLRB ID is the position of the first SLRB ID in the SLRB ID list minus 1
  • the index corresponding to the first SLRB ID is the position of the first SLRB ID in the SLRB ID list.
  • the SLRB ID list is ⁇ SLRB ID#1, SLRB ID#2, SLRB ID#3,... ⁇ , assuming that the first SLRB ID is SLRB ID#2, then the first SLRB ID in the SLRB ID list The position is 2.
  • the index of the SLRB ID in the SLRB ID list starts from 1, that is, the index corresponding to SLRB ID#1 is 1, then the index corresponding to the first SLRB ID is 2; if the index of the SLRB ID in the SLRB ID list starts from 0, That is, the index corresponding to SLRB ID#1 is 0, and the index corresponding to the first SLRB ID is 1.
  • the SLRB ID list is jointly maintained by the terminal device and the network device, and the SLRB ID list may include all SLRB IDs corresponding to the first DST ID or all SLRB IDs configured with the repetition function corresponding to the first DST ID.
  • the value of i can start from 0, can also start from 1, or can also start from any other integer.
  • the domain F i corresponding to the carrier list SL The i-th SL carrier.
  • F i corresponding relationship between the SL domain is similar to the carrier.
  • Field indicates F i corresponding to the carrier and SL corresponding to the m logical channels which logical channel.
  • the 7 field does not have a corresponding SL carrier.
  • the F 7 field can be set as a default value, and the terminal device will ignore the value of the F 7 field by default. No other carrier F i corresponding to the SL domain performs the same processing.
  • the SL carrier list is jointly maintained by the terminal device and the network device, and it may include all the SL carriers currently configured, or it may only include all the SL carriers corresponding to the first DST ID, or it may only include all the SL carriers corresponding to the first SLRB.
  • SL carrier exemplary, the n SL carriers may be all SL carriers currently configured, or all SL carriers corresponding to the first DST ID, or may be all SL carriers corresponding to the first SLRB. It should be understood that the number of SL carriers in the SL carrier list may be greater than or equal to n. It should also be understood that the SL carrier list may specifically be a list of frequencies corresponding to the SL carrier, but this application does not limit it.
  • the SL carrier list may be an SL carrier ID or index list, and the ID or index may be that the terminal device is SL. Carrier allocation.
  • each field F i may occupy one bit, the bit value may be 0 and 1, and two values 2 There is a corresponding relationship between the two logical channels.
  • one of the two logical channels can be called the primary logical channel, and the other can be called the secondary logical channel.
  • the F i field is 0, it means that the SL carrier corresponding to the F i field corresponds to the main logical channel.
  • i field is 1, it indicates that the domain F i corresponding to the logical channel corresponding to the secondary carrier and SL, or the meaning of 0 and 1 may be reversed.
  • F i indicates that the domain ID corresponding to the larger carrier and SL corresponding to the logical channel
  • F i indicates that the smaller the domain ID corresponding to the carrier-SL Corresponding to the logical channel, or the meaning of 0 and 1 can also be reversed.
  • each field F i may occupy 2 bits
  • the 2 bits of the value may be 01, 10 and 11, taking the four
  • the four values of 00, 01, 10, and 11 can correspond to the logical channels with IDs from small to large among the four logical channels in sequence.
  • the terminal device may determine that the domain corresponding to F i F i based on the value of the field corresponding to the logical channel SL carriers four logical channels.
  • F i field is merely a name, which can be replaced by other names, such as "A i Domain", “LC i domain” and the like, does not respond to the name of the present application constitutes any limitation.
  • the corresponding IDs in the list involved in this application are arranged in ascending or descending order.
  • the DST IDs in the DST ID list are arranged in ascending or descending order according to the value of the DST ID.
  • the DST ID list includes DST ID#0, DST ID#1 and DST ID#2.
  • the order of ID in the DST ID list can be: DST ID#0, DST ID#1, DST ID#2, or it can also be: DST ID#2, DST ID#1, DST ID#0.
  • the SLRB IDs in the SLRB ID list are arranged in ascending or descending order according to the value of the SLRB ID.
  • the SL carriers in the SL carrier list are arranged in ascending or descending order according to the frequency corresponding to the SL carrier.
  • the arrangement order of the corresponding IDs in the list referred to below (if it is a carrier list, it may also be the frequency corresponding to the carrier) can also refer to the description here, which will not be repeated in the following.
  • FIG. 6 shows an example when the first information is format one.
  • the first DST ID index that is, the index corresponding to the first DST ID
  • the first DST ID index can also be replaced with the first DST ID.
  • the first SLRB ID corresponds to the aforementioned second domain.
  • the first SLRB ID can also be replaced with an index corresponding to the first SLRB ID.
  • the network device may F 5 to F 7 domain field set to the default, the terminal apparatus ignores F 5 F 7 domain to domain.
  • F i value of the field 0 and a 1 if F i 0 indicates that the corresponding domain carrier # 1 and SL corresponding to the logical channel # 1, 1 represents the domain F i corresponding to the logical channel # 2 and SL corresponding to the carrier, Then, if the F 0 to F 4 fields are 11000, logical channel #1 corresponds to SL carrier #3, SL carrier #4, and SL carrier #5, and logical channel #2 corresponds to SL carrier #1 and SL carrier #2 .
  • FIG. 6 is only an exemplary illustration, and the present application does not limit the relative position between each domain and the number of bits occupied by each domain.
  • the F 0 domain to the F 7 domain may also follow the first domain.
  • the first field may also occupy 8 bits.
  • the first information shown in FIG. 6 may also include other content not shown in the figure.
  • the network device may also configure the corresponding relationship between the logical channel and the SL carrier corresponding to the other SLRB configured with the repetition function corresponding to the first DST ID through the first information.
  • the first information may further include a second domain and a second domain corresponding to the domain F i v a similar domain.
  • the first DST ID corresponds to a total of 5 SLRBs (that is, the first SLRB to the fifth SLRB), and 2 of the SLRBs (that is, the first SLRB and the second SLRB) are configured with a repetitive function as an example for description.
  • FIG. 7, shows a possible format of the first information.
  • the first information includes information shown in FIG. 6, may further comprise a second and a second SLRB ID SLRB ID F i corresponding to the v-domain.
  • the second SLRB ID can also be replaced with an index corresponding to the second SLRB ID, and the index corresponding to the second SLRB ID is related to the position of the second SLRB in the SLRB ID list.
  • the index corresponding to the first SLRB ID The description of the index will not be explained here.
  • the second SLRB the v domain corresponding to F i corresponding to the sequence corresponding to the first carrier list SL 1 to SL v-th carrier, which field indicates the F i corresponding to the carrier SL corresponding to the second logical channel SLRB Which logical channel corresponds to.
  • FIG. 7 is only an exemplary illustration, and the present application does not limit the relative position between each domain and the number of bits occupied by each domain. It should also be understood that the first information shown in FIG. 7 may also include other content not shown in the figure.
  • the information indicating the SLRB in the first information may be sorted in the ascending or descending order of the index corresponding to the SLRB ID or the SLRB ID. For example, in FIG. 7, if the first SLRB ID is smaller than the second SLRB ID, the first SLRB ID may follow the first domain; on the contrary, the second SLRB ID may follow the first domain, that is, in FIG. The positions of the first SLRB ID and the second SLRB ID are exchanged.
  • the format of the first information may be as shown in FIG. 8.
  • FIG. 8 shows another possible format of the first information.
  • the first information may comprise a first domain and the domain of s and r groups SLRB j F i v a domain 8 as shown in FIG. 1 ⁇ r ⁇ s, and s and r are integers, and s is the maximum number of SLRBs corresponding to each DST ID or the maximum number of SLRBs with repetitive functions.
  • Each SLRB j domain occupies one bit, and the value of j can start from 0, can also start from 1, or can also start from any other integer.
  • the s SLRB j domains are SLRB 0 domain to SLRB s-1 domain, the SLRB j domain and the jth in the SLRB ID list +1 SLRB ID corresponding.
  • the s SLRB j domains are SLRB 1 domain to SLRB s domain, and the SLRB j domain corresponds to the jth SLRB ID in the SLRB ID list .
  • the SLRB ID list here includes all SLRBs corresponding to the first DST ID or all SLRBs configured with a repeat function. If the number of SLRB IDs in a SLRB ID list is less than s, the network device sets the corresponding SLRB j field as a default value, and the terminal device ignores the SLRB j field. In addition, if the SLRB configured by the network device for the DST corresponding to a DST ID does not include an SLRB corresponding to a certain SLRB j domain, the terminal device ignores the SLRB j domain.
  • SLRB J domain for determining whether there exists a set of v F i SLRB J domain and domain SLRB indicated by the first information corresponding indication. For example, when J SLRB domain 1, showing a set of v F i corresponding to the domain SLRB J SLRB field indicated by the presence of the first information, when a domain SLRB J is 0, the first information indicates the absence of a set of v F i corresponding SLRB J SLRB domain indicated by the domain, or the meaning of 0 and 1 may be reversed.
  • the SLRB 0 to SLRB 4 fields correspond to the first SLRB to the fifth SLRB one-to-one, and the SLRB 5 to SLRB 7 fields are set as default values.
  • the SLRB 0 field corresponds to the first SLRB
  • the SLRB 1 field corresponds to the second SLRB
  • the SLRB 4 field corresponds to the fifth SLRB
  • the SLRB j field is 1
  • SLRB J represents a group of v F i corresponding to the domain SLRB SLRB J domain information indicated by the absence of the first, then, SLRB 0.
  • Fields F 0 to F 7 in the first row correspond to SLRB 0 , indicating the correspondence between the logical channel corresponding to the first SLRB and the SL carrier; Fields F 0 to F 7 in the second row correspond to SLRB 2 , indicating that the second SLRB corresponds The corresponding relationship between the logical channel and the SL carrier.
  • FIG. 8 is only an exemplary illustration, and the present application does not limit the relative position between each domain and the number of bits occupied by each domain. It should also be understood that the first information shown in FIG. 8 may also include other content not shown in the figure.
  • the network device can also configure other one or more DST IDs respectively through the first information. Correspondence between the logical channel corresponding to the SLRB configured with the repetition function and the SL carrier. This will be described with reference to FIG. 9.
  • each of the DST ID information comprises a first index (i.e., DST ID corresponding to the index), each one corresponding to one or more of DST ID SLRB ID, and each SLRB ID 8 F i corresponding domain.
  • the DST ID index in FIG. 9 can also be replaced with a DST ID, and the SLRB ID can also be replaced with an index corresponding to the SLRB ID.
  • DST IDs shown in Figure 9 is z, and the number of SLRBs is also z. That is, in Figure 9 it is assumed that one DST ID corresponds to only one SLRB configured with a repeat function, but in reality, one DST ID can correspond to one or more A SLRB configured with a repeat function.
  • the format of the first information may also be similar to that shown in FIG. 8
  • the format is that one DST ID shown in FIG. 8 is extended to multiple DST IDs, and the content related to each DST ID is similar to that shown in FIG. 8 and will not be repeated here.
  • First information includes a first field, m and each second second region domain F i corresponding to the v-domain.
  • the first field includes information indicating the first DST ID, which is the same as the first field in Format 1. For details, refer to the above description of the first field.
  • the m second domains have a one-to-one correspondence with the m logical channels.
  • the second field includes its corresponding LCID or an index corresponding to its corresponding LCID.
  • the index corresponding to the LCID may be indicated by the network device, or the index corresponding to the LCID is related to the position of the LCID in the LCID list. For example, if the index of the LCID in the LCID list starts from 0, the index corresponding to a certain LCID is the position of the LCID in the LCID list minus 1. If the index of the LCID in the LCID list starts from 1, then a certain LCID corresponds to The index of is the position of the LCID in the LCID list.
  • the LCID list is ⁇ LCID#1, LCID#2, LCID#3,... ⁇ , assuming that a certain LCID is LCID#2, then the position of the LCID in the LCID list is 2. If the index of the LCID in the LCID list starts from 1, that is, the index corresponding to LCID#1 is 1, then the index corresponding to the LCID is 2; if the index of the LCID in the LCID list starts from 0, that is, the index corresponding to LCID#1 If it is 0, the index corresponding to the LCID is 1.
  • the LCID list is jointly maintained by the terminal device and the network device.
  • the LCID list may include all currently configured LCIDs, or include all LCIDs corresponding to the first SLRB.
  • the m second domains are ascending or descending according to the LCID corresponding to the m logical channels, or ascending according to the index corresponding to the LCID corresponding to the m logical channels Or from large to small, there is a one-to-one correspondence with the m logical channels.
  • the value of i can start from 0, can also start from 1, or can also start from any other integer.
  • the domain F i corresponding to the carrier list SL The i-th SL carrier.
  • F i corresponding relationship between the SL domain is similar to the carrier.
  • F i corresponding to the second field indicates which carrier the SL field domain corresponds to F i corresponding to the corresponding logical channel.
  • field F i is 0, SL indicates a logical channel corresponding to a carrier domain and a second domain corresponding to F i as indicated, is a field F i, F i represents a domain corresponding to the second carrier and the SL domain
  • the indicated logical channel does not correspond, or the meaning of 0 and 1 can be reversed.
  • the SL carrier list is jointly maintained by the terminal device and the network device, and it may include all current SL carriers, or may only include all SL carriers corresponding to the first DST ID, or may only include all SL carriers corresponding to the first SLRB .
  • the n SL carriers may be all SL carriers currently in effect, or all SL carriers corresponding to the first DST ID, or may be all SL carriers corresponding to the first SLRB.
  • F i field is merely a name, which can be replaced by other names, such as "A i Domain", “LC i domain” and the like, does not respond to the name of the present application constitutes any limitation.
  • LCID is used as an example to represent logical channels.
  • other information can also be used to represent logical channels.
  • an index allocated by a terminal device for logical channels can be used to represent logical channels.
  • LCID The list is replaced with a logical channel index list.
  • the first DST ID index that is, the index corresponding to the first DST ID
  • the first DST ID index can also be replaced with the first DST ID.
  • LCID#1 to LCID#m are the m second domains.
  • the SL carrier list is ⁇ SL carrier #1, SL carrier #2,...SL carrier #8 ⁇ .
  • the F 0 domain corresponds to SL carrier #1
  • the F 1 domain corresponds to SL carrier #2
  • the F 2 domain corresponds to SL carrier #3
  • the F 3 domain corresponds to SL carrier #4
  • the F 4 domain corresponds to SL carrier #5.
  • the network device may F 5 to F 7 domain field set to the default, the terminal apparatus ignores F 5 F 7 domain to domain.
  • F i value of the field 0 and a 1, 1 indicates the logical channel if the F i corresponding to the domain corresponding to the carrier with the SL domain corresponding to F i, F i 0 indicates that the corresponding field of the carrier is not SL F The logical channel corresponding to the i domain corresponds. Then, if the F 0 to F 4 fields corresponding to LCID #1 are 11000, then logical channel #1 corresponds to SL carrier #1 and SL carrier #2. If the F 0 to F 4 fields corresponding to LCID#2 are 00011, logical channel #1 corresponds to SL carrier #4 and SL carrier #5.
  • FIG. 10 is only an exemplary illustration, and the present application does not limit the relative position between each domain and the number of bits occupied by each domain. It should also be understood that the first information shown in FIG. 10 may also include other content not shown in the figure.
  • the first information can also be used to indicate the corresponding relationship between other logical channels corresponding to the first SLRB and the SL carrier. . Further, the first information may also indicate the correspondence between one or more logical channels and SL carriers corresponding to other SLRBs corresponding to the first DST ID. In an example, for specific instructions, please refer to the format 2 shown above or refer to FIG. 10. In another example, the format of the first information at this time may be as shown in FIG. 11.
  • FIG. 11 shows a possible format of the first information.
  • the first information may comprise a first domain and the domain of s and r groups LCID j F i v a domain. 1 ⁇ r ⁇ s, and s and r are both integers, and s is the maximum number of logical channels corresponding to each DST ID.
  • Each LCID j domain occupies one bit, and the value of j can start from 0, can also start from 1, or can also start from any other integer.
  • the s LCID j domains are LCID 0 domain to LCID s-1 domain, the LCID j domain and the j+th in the LCID list Corresponds to 1 LCID.
  • the value of j starts from 1
  • the value of j is 1 to s
  • the s LCID j fields are from the LCID 1 field to the LCID s field
  • the LCID j field corresponds to the jth LCID in the LCID list.
  • the LCID list here includes all LCIDs corresponding to the first DST ID. If the number of LCIDs in an LCID list is less than s, the network device sets the corresponding LCID j field as a default value, and the terminal device ignores the LCID j field. In addition, if the LCID configured by the network device for the DST corresponding to a DST ID does not include an LCID corresponding to a certain LCID j field, the terminal device ignores the LCID j field.
  • LCID j a corresponding set of logical channels F i v a domain indicated by the domain LCID j indicating the first information.
  • the LCID j field is 1, it means that there are a set of v Fi fields corresponding to the logical channel indicated by the LCID j field in the first information.
  • the LCID j field is 0, it means that there are no F i fields in the first information.
  • F i domain format meaning or meanings two F i in FIG. 10 of the same domain.
  • the first DST ID corresponds to a total of 5 logical channels (that is, the first logical channel to the fifth logical channel), and the SLRB configuration corresponding to 2 logical channels (that is, the first logical channel and the second logical channel) is repeated
  • the function is taken as an example, and Fig. 11 will be described.
  • the LCID 0 domain to the LCID 4 domain correspond to the first logical channel to the fifth logical channel one-to-one
  • the LCID 5 domain to the LCID 7 domain are set as default values.
  • the LCID 0 field corresponds to the first logical channel
  • the LCID 1 field corresponds to the second logical channel
  • the LCID 4 field corresponds to the fifth logical channel.
  • the LCID j field is 1, it means that the first information indicates the presence of the LCID j field.
  • FIG. 11 is only an exemplary illustration, and the present application does not limit the relative position between each domain and the number of bits occupied by each domain. It should also be understood that the first information shown in FIG. 11 may also include other content not shown in the figure.
  • the first information may also indicate the correspondence between one or more logical channels corresponding to one or more SLRBs corresponding to other DST IDs other than the first DST ID and the SL carrier.
  • the first information may also indicate the correspondence between one or more logical channels corresponding to one or more SLRBs corresponding to other DST IDs other than the first DST ID and the SL carrier.
  • FIG. 12 is a schematic flowchart of another communication method provided by the present application. The steps in the method 400 shown in FIG. 12 will be described below.
  • S410 The network device sends SLRB configuration information to the terminal device.
  • the SLRB configuration information may be carried by RRC signaling (or RRC message) or broadcast message, which is not limited in this application.
  • the SLRB configuration information may configure p SLRBs, and indicate that the p SLRBs correspond to the first DST ID.
  • p SLRBs are all configured with a repeat function.
  • the meaning of SLRB configured with the repeat function can refer to the above description.
  • the p SLRBs may be all SLRBs configured with a repetitive function among all SLRBs corresponding to the first DST ID, but this application does not limit this.
  • S420 The network device sends the first information to the terminal device.
  • the first information is used to indicate the first DST ID.
  • the first indication information further indicates the SLRB that activates the repeat function and/or the SLRB that deactivates the repeat function among the p SLRBs. That is, the first information may indicate which of the p SLRBs need to be activated, or the first information may indicate which of the p SLRBs need to be deactivated, or the first indication information It can indicate at the same time which of the p SLRBs whose repetitive functions need to be activated, and which of the SLRBs need to be deactivated.
  • the first information may be MAC CE, but this application is not limited thereto.
  • the network device can flexibly activate/deactivate the repetitive function of the SLRB according to actual needs, which is beneficial to improving system performance.
  • the first information may include the first domain and p B i domains.
  • the first field includes information indicating the first DST ID.
  • the first domain here is the same as the first domain in the methods 200 and 300, and will not be repeated here.
  • Each B i domain occupies one bit, and i is an integer.
  • the value of i can start from 0, can also start from 1, or can also start from any other integer.
  • the p B i domains are B 0 domains B p-1 domains
  • B i domains correspond to the i+th in the SLRB ID list
  • the p B i domains are B 1 domain to B p domain
  • the B i domain corresponds to the i-th SLRB ID in the SLRB ID list.
  • the indicated SLRB When i is another value, the corresponding relationship between the B i field and the SLRB ID is similar.
  • the SLRB ID list includes the p SLRB IDs, and the SLRB ID list is jointly maintained by the network device and the terminal device.
  • the B i domain indicates whether the repetition function of its corresponding SLRB (that is, the SLRB indicated by the SLRB ID corresponding to the B i domain) is in an active state, that is, the B i domain indicates whether the repetition function of its corresponding SLRB is activated. .
  • the B i domain when the B i domain is 0, it means activating the repetitive function of the SLRB corresponding to the B i domain, or when the B i domain is 1, it means activating the repetitive function of the SLRB corresponding to the B i domain.
  • the B i field indicates whether the repetition function of the corresponding SLRB is in a deactivated state, that is, the B i field indicates whether the repetition function of the corresponding SLRB is deactivated. For example, when the B i field is 0, it means that the repetition function of the SLRB corresponding to the B i domain is deactivated, or when the B i field is 1, it means that the repetition function of the SLRB corresponding to the B i domain is deactivated.
  • the B i field indicates whether the repetitive function of the corresponding SLRB is activated or deactivated, that is, the B i field indicates whether the repetitive function of the corresponding SLRB is activated or deactivated.
  • B i field is 0, the repeat function is activated B i field corresponding SLRB needs, B i field is 1, the deactivation B i field corresponding repeat function SLRB, or the meaning of 0 and 1 may be in turn.
  • FIG. 13 shows an example when the first information is format one.
  • the first DST ID index that is, the index corresponding to the first DST ID
  • the p SLRBs are SLRB#1 to SLRB#5, and the B 0 to B 4 domains correspond to SLRB#1 to SLRB#5 in sequence. Assume that the domains B 0 to B 5 are 10100. If B i field is 1, represents a repeat function activated B i field corresponding SLRB needs, B i field is 0, the deactivation SLRB the repeat function B i domain corresponds, then, B 0 field to B 5 domain Indicates to activate the repeat function of SLRB#1 and SLRB#3, and deactivate the repeat function of other SLRBs.
  • B i field is 1, represents a repeat function activated B i field corresponding SLRB needs, B i field is 0, it indicates not activate B i field corresponding repeat function SLRB, then, B 0 field to B 5 domain Indicates to activate the repeat function of SLRB#1 and SLRB#3. If the field is a B i, B i represents the activation domain corresponds to the repeat function SLRB need, field B i is 0, B i represents the activation domain corresponding to not repeat function SLRB, then, field B 0 to B Field 5 means to deactivate the repeat function of SLRB#1 and SLRB#3.
  • FIG. 13 is only an exemplary illustration, and the present application does not limit the relative position between each domain and the number of bits occupied by each domain.
  • the relative positions of the first field, B 0 to B 4 fields, and reserved bits can also be shown in FIG. 14 or FIG. 15.
  • the first information shown in FIG. 13 may also include other content not shown in the figure.
  • the network device can also use the first information to configure one or more DST IDs other than the first DST ID to activate the repeat function SLRB and/or deactivate the repeat function in the SLRB configured with the repeat function. SLRB. This will be described with reference to FIG. 16.
  • the first information includes each DST ID index (that is, the index corresponding to the DST ID) and 5 B i domains corresponding to each DST ID.
  • the number of DST IDs shown in FIG. 16 is z.
  • the DST ID index in the figure can also be replaced with DST ID.
  • the 5 SLRBs indicated by the 5 B i fields corresponding to each DST ID are the 5 SLRBs configured with a repetitive function among the SLRBs corresponding to the DST ID.
  • the number of SLRBs configured with the repetitive function corresponding to each DST ID may be different.
  • the number of SLRBs configured with the repetitive function corresponding to each DST ID is 5 as an example for description.
  • FIG. 14 or FIG. 15 can also be expanded to indicate the SLRB that activates the repeat function and/or the SLRB that deactivates the repeat function among the SLRBs configured with the repeat function respectively corresponding to the DST ID.
  • the first information may include the first domain and v B i domains, where v is the maximum number of SLRBs that can be configured for the DST (or service) corresponding to each DST ID, v ⁇ p, and v is an integer.
  • the first field is information indicating the first DST ID.
  • the first domain here is the same as the first domain in the methods 200 and 300, and will not be repeated here.
  • Each B i domain occupies one bit, and i is an integer.
  • the value of i can start from 0, can also start from 1, or can also start from any other integer.
  • the value of i starts from 0, the value of i is 0 to v-1, the v B i domains are B 0 domains and B v-1 domains, and the B i domains correspond to the i+th in the SLRB ID list.
  • the value of i starts from 1, the value of i is 1 to v, the v B i domains are B 1 domain to B v domain, and the B i domain corresponds to the i-th SLRB ID in the SLRB ID list.
  • the indicated SLRB is indicated by one SLRB ID.
  • the SLRB ID list is jointly maintained by the network device and the terminal device.
  • the SLRB ID list may include all SLRB IDs corresponding to the first DST ID, or the SLRB ID list may include all current SLRBs (that is, the SLRB IDs corresponding to all DST IDs). It should be understood that the v SLRBs corresponding to the v B i domains include the p SLRBs.
  • SLRB ID number SLRB ID list is less than or equal to v, if the number of SLRB ID SLRB ID list is less than v, the network device corresponding to F i field is set to a default value, the terminal apparatus ignores the field F i.
  • the terminal device ignores the B i domain; and/or if a certain B i domain If the corresponding SLRB is not configured with a repeat function, the terminal device ignores the B i domain.
  • the B i field indicates whether the repetition function of the corresponding SLRB is in the activated state, that is, the B i field indicates whether the repetition function of the corresponding SLRB is activated. For example, when the B i domain is 0, it means activating the repetitive function of the SLRB corresponding to the B i domain, or when the B i domain is 1, it means activating the repetitive function of the SLRB corresponding to the B i domain.
  • the B i field indicates whether the repetition function of the corresponding SLRB is in a deactivated state, that is, the B i field indicates whether the repetition function of the corresponding SLRB is deactivated. For example, when the B i field is 0, it means that the repetition function of the SLRB corresponding to the B i domain is deactivated, or when the B i field is 1, it means that the repetition function of the SLRB corresponding to the B i domain is deactivated.
  • the B i field indicates whether the repetitive function of the corresponding SLRB is activated or deactivated, that is, the B i field indicates whether the repetitive function of the corresponding SLRB is activated or deactivated.
  • B i field is 0, the repeat function is activated B i field corresponding SLRB needs, B i field is 1, the deactivation B i field corresponding repeat function SLRB, or the meaning of 0 and 1 may be in turn.
  • FIG. 17 shows an example when the first information is format one.
  • the first DST ID index that is, the index corresponding to the first DST ID
  • B i represents the activation domain corresponding to the repeat function SLRB
  • B i field is 0, the deactivation-repeat domain of B i corresponding to SLRB.
  • the B 0 domain to the B 7 domain are 10100001, it means that SLRB#1, SLRB#3, and SLRB#8 are activated, and other SLRBs are deactivated.
  • FIG. 17 is only an exemplary illustration, and the present application does not limit the relative position between each domain and the number of bits occupied by each domain.
  • the relative positions of the first field, B 0 to B 7 fields, and reserved bits can also be as shown in FIG. 18 or FIG. 19.
  • the first information shown in FIG. 17 may also include other content not shown in the figure.
  • F i field is merely a name, which can be replaced with another name, which is not limited in this application.
  • the network device can also use the first information to configure one or more DST IDs other than the first DST ID to activate the repeat function SLRB and/or deactivate the repeat function in the SLRB configured with the repeat function. SLRB. This will be described with reference to FIG. 20.
  • FIG. 20 shows a possible format of the first information.
  • the first information includes each DST ID index (that is, the index corresponding to the DST ID) and 8 B i domains corresponding to each DST ID.
  • the number of DST IDs shown in FIG. 20 is z.
  • DST ID index in the figure can also be replaced with DST ID.
  • the maximum number of SLRBs that a network device can configure for one DST ID may not be 8.
  • only the maximum number of SLRBs that a network device can configure for one DST ID is 8 as an example for description.
  • Fig. 18 or Fig. 19 can also be expanded to indicate the SLRB that activates the repetition function and/or the SLRB that deactivates the repetition function in the SLRBs configured with the repetition function corresponding to the DST ID respectively.
  • the first information includes s DST j domains and r group v B i domains, 2 ⁇ r ⁇ s, and s and r are both integers, and s is the maximum number of DST IDs that the terminal device can support or is determined by the network device. The number of DST IDs configured by the terminal device. It should be understood that a group includes v B i domains.
  • Each DST j domain occupies one bit, and j is an integer.
  • the value of j can start from 0, can also start from 1, or can also start from any other integer.
  • the s DST j domains are DST 0 domain to DST s-1 domain, and the DST j domain and the jth in the DST ID list +1 DST ID corresponding.
  • the s DST j domains are DST 1 domain to DST s domain, and the DST j domain corresponds to the jth DST ID in the DST ID list .
  • DST j DST ID field is used if there DST j corresponding to the domain indicated by a set of v B i field indicates the first information, DST ID DST j s of the domain corresponding to the first object comprises identification.
  • DST field of r j r correspond to the group B i v a s a domain and the domain DST j
  • r number of the DST field is j s j th DST field indicating that the corresponding set of the v The r DST j domains of the B i domain.
  • Each B i domain occupies one bit, and i is an integer.
  • the value of i can start from 0, can also start from 1, or can also start from any other integer.
  • the value of i from 0 the value of i is 0 to v-1
  • domain B i B i be the corresponding domain DST j
  • v can be the maximum number of SLRBs that one DST ID can correspond to, or the maximum number of SLRBs that can be configured with a repetitive function for one DST ID, which is not limited in this application.
  • the SLRB ID list is jointly maintained by the network device and the terminal device, and the SLRB ID list corresponding to a certain DST ID may include all SLRB IDs corresponding to the DST ID. It should be understood that the v SLRBs corresponding to the v B i domains corresponding to the first DST ID include the p SLRBs. If a number of SLRB ID SLRB ID list is less than v, the network device B i corresponding field is set to a default value, the terminal apparatus ignores the field F i.
  • the terminal device ignores the B i domain; and/or if the SLRB corresponding to a certain B i domain If the repeat function is not configured, the terminal device ignores the B i domain.
  • the B i field indicates whether the repetition function of the corresponding SLRB is in an active state; in another example, the B i domain indicates it Whether the repetition function of the corresponding SLRB is in the deactivated state; in another example, the B i field indicates whether the repetition function of the corresponding SLRB is in the activated state or the deactivated state.
  • the DST 0 domain corresponds to the first DST ID in the DST ID list.
  • the DST 1 domain corresponds to the second DST ID in the DST ID list. Other similarities will not be repeated. If the DST 0 domain is 1, it means that there are corresponding v B i domains, that is, B 0 to B 7 domains. If the DST 0 domain is 0, it means that there are no corresponding v B i domains, or 0 and 1 The meaning can be reversed.
  • B 0 field to B 7 domain representation 8 SLRB B i field indicates activated B i field corresponding SLRB
  • B i field is the deactivation of the B i field corresponding SLRB 1 to 0, or 0
  • the meaning of and 1 can also be reversed.
  • the DST 0 field is 1, it means that there are corresponding v B i fields. Assuming that the DST 1 field corresponds to the first DST ID, and the DST 1 field is 1, if the DST 0 field is also 1, the second row of B 0 to B 7 fields in FIG. 21 corresponds to the DST 1 field.
  • the list of SLRB IDs corresponding to the first DST ID is ⁇ SLRB ID#1, SLRB ID#2, SLRB ID#3, SLRB ID#4 ⁇
  • B i represents the activation domain of the domain corresponding to the B i SLRB
  • domain B i B i represents deactivates the corresponding SLRB domain
  • the B 4 domain to B 7 domain in the second row are set as default values.
  • the first information may adopt format one or format two.
  • the first information may adopt format three.
  • n ⁇ 1, and n is an integer.
  • the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic.
  • the various numerical numbers or serial numbers involved in the foregoing processes are only for easy distinction for description, and should not constitute any limitation on the implementation process of the embodiments of the present application.
  • FIG. 22 is a schematic block diagram of a communication device provided by an embodiment of the present application. As shown in FIG. 22, the communication device 1000 may include a transceiving unit 1100 and a processing unit 1200.
  • the transceiver unit 1100 can be used to receive information sent by other devices, and can also be used to send information to other devices. For example, sending SL carrier configuration information or receiving SL carrier configuration information.
  • the processing unit 1200 may be used to perform part of the processing of the device, such as selecting the corresponding SL carrier for the logical channel.
  • the communication device 1000 may correspond to the terminal device in the foregoing method embodiment.
  • the communication device 1000 may correspond to the terminal device in any one of the aforementioned methods 200 to 400, the communication device 1000 may include a unit for performing operations performed by the terminal device in the corresponding method, and the communication Each unit in the apparatus 1000 is to implement the operations performed by the terminal device in the corresponding method.
  • the transceiver unit 1100 is configured to receive side-chain SL carrier configuration information sent by the network device, where the SL carrier configuration information includes information about n SL carriers , N ⁇ 2, and n is an integer; the processing unit 1200 is configured to select a corresponding SL carrier from the n SL carriers for each of the m logical channels corresponding to the first side-chain radio bearer SLRB , M ⁇ 1, and m is an integer; wherein, the first SLRB is configured with a repeat function, and the first SLRB is a radio bearer between the communication device 1000 and other terminal equipment.
  • the transceiving unit 1100 is configured to receive the side-chain SL carrier configuration information and the side-chain radio bearer SLRB configuration information sent by the network device.
  • the SL carrier configuration information is used to configure n SL carriers
  • the SLRB configuration information is used to configure a first SLRB
  • the SLRB configuration information is used to indicate that the first SLRB corresponds to a first destination identifier
  • the first The SLRB is configured with a repeat function.
  • the first SLRB is a radio bearer between the communication device 1000 and other terminal devices, n ⁇ 2, and n is an integer; receiving the first information sent by the network device, the first SLRB A piece of information is used to indicate the first destination identifier and the corresponding relationship between each of the m logical channels corresponding to the first SLRB and the SL carrier, m ⁇ 1, and m is an integer.
  • the transceiver unit 1100 is configured to receive side-chain radio bearer SLRB configuration information sent by the network device, where the SLRB configuration information is used to configure p SLRBs and Used to indicate that the p SLRBs correspond to the first destination identifier, the p SLRBs are configured with a repeat function, p ⁇ 1, and p is an integer; receiving the first information sent by the network device, the first information It is used to indicate the first destination identifier and the SLRB that activates the repeat function among the p SLRBs, and/or the SLRB that deactivates the repeat function.
  • the communication device 1000 may correspond to the network device in the foregoing method embodiment, for example, it may be a network device or a chip configured in the network device.
  • the communication device 1000 may correspond to the network device in any of the methods 200 to 400, the communication device 1000 may include a unit for performing operations performed by the network device in the corresponding method, and the communication device Each unit in 1000 is to implement the operations performed by the network device in the corresponding method.
  • the transceiver unit 1100 is configured to send side-chain SL carrier configuration information, where the SL carrier configuration information includes information about n SL carriers, and n ⁇ 2 , And n is an integer; receiving the first indication information sent by the terminal device, the first indication information is used to indicate the correspondence between each logical channel of the m logical channels corresponding to the first side-chain radio bearer SLRB and the SL carrier , M ⁇ 1, and m is an integer, wherein the first SLRB is configured with a repeat function, and the first SLRB is a radio bearer between the terminal device and other terminal devices.
  • the transceiver unit 1100 is configured to send side-chain SL carrier configuration information and side-chain radio bearer SLRB configuration information to the terminal device, where the SL carrier
  • the configuration information is used to configure n SL carriers
  • the SLRB configuration information is used to configure a first SLRB
  • the SLRB configuration information is used to indicate that the first SLRB corresponds to a first destination identifier, and the first SLRB is configured Repeat function
  • the first SLRB is the radio bearer between the terminal device and other terminal devices n ⁇ 2, and n is an integer
  • the first information is sent to the terminal device, and the first information is used to indicate all
  • the first destination identifier and the corresponding relationship between each logical channel and the SL carrier indicating the m logical channels corresponding to the first SLRB, m ⁇ 1, and m is an integer.
  • the transceiver unit 1100 is configured to send side chain bearer SLRB configuration information to the terminal device, where the SLRB configuration information is used to configure p SLRBs and Indicate that the p SLRBs correspond to the first destination identifier, the p SLRBs are configured with a repeat function, p ⁇ 1, and p is an integer; send first information to the terminal device, and the first information is used to indicate The first destination identifier and the SLRB that activates the repeat function and/or the SLRB that deactivates the repeat function among the p SLRBs.
  • the transceiver unit 1100 in the communication device 1000 may correspond to the transceiver 2020 in the terminal device 2000 shown in FIG. 23, and the processing unit 1200 in the communication device 1000 may It corresponds to the processor 2010 in the terminal device 2000 shown in FIG. 23.
  • the transceiver unit 1200 in the communication device 1000 may be an input/output interface.
  • the transceiver unit 1100 in the communication device 1000 may correspond to the transceiver 3200 in the network device 3000 shown in FIG. 24, and the processing unit 1200 in the communication device 1000 may It corresponds to the processor 3100 in the network device 3000 shown in FIG. 24.
  • the transceiver unit 1100 in the communication device 1000 may be an input/output interface.
  • FIG. 23 is a schematic structural diagram of a terminal device 2000 provided by an embodiment of the present application.
  • the terminal device 2000 can be applied to the system shown in FIG. 1 to perform the functions of the terminal device in the foregoing method embodiment.
  • the terminal device 2000 includes a processor 2010 and a transceiver 2020.
  • the terminal device 2000 further includes a memory 2030.
  • the processor 2010, the transceiver 2002, and the memory 2030 can communicate with each other through internal connection paths to transfer control or data signals.
  • the memory 2030 is used to store computer programs, and the processor 2010 is used to call and transfer from the memory 2030. Run the computer program to control the transceiver 2020 to send and receive signals.
  • the terminal device 2000 may further include an antenna 2040 for transmitting the uplink data or uplink control signaling output by the transceiver 2020 through a wireless signal.
  • the above-mentioned processor 2010 and the memory 2030 may be combined into a processing device, and the processor 2010 is configured to execute the program code stored in the memory 2030 to realize the above-mentioned functions.
  • the memory 2030 may also be integrated in the processor 2010 or independent of the processor 2010.
  • the processor 2010 may correspond to the processing unit in FIG. 22.
  • the above transceiver 2020 may correspond to the communication unit in FIG. 22, and may also be referred to as a transceiver unit.
  • the transceiver 2020 may include a receiver (or receiver, receiving circuit) and a transmitter (or transmitter, transmitting circuit). Among them, the receiver is used to receive signals, and the transmitter is used to transmit signals.
  • the terminal device 2000 shown in FIG. 23 can implement various processes involving the terminal device in any of the methods 200 to 400.
  • the operation or function of each module in the terminal device 2000 is to implement the corresponding process in the foregoing method embodiment.
  • the above-mentioned processor 2010 can be used to execute the actions described in the previous method embodiments implemented by the terminal device, and the transceiver 2020 can be used to execute the terminal device described in the previous method embodiments to send to or receive from the network device. action.
  • the transceiver 2020 can be used to execute the terminal device described in the previous method embodiments to send to or receive from the network device. action.
  • the aforementioned terminal device 2000 may further include a power supply 2050 for providing power to various devices or circuits in the terminal device.
  • the terminal device 2000 may also include one or more of an input unit 2060, a display unit 2070, an audio circuit 2080, a camera 2090, and a sensor 2100.
  • the audio circuit It may also include a speaker 2082, a microphone 2084, and so on.
  • FIG. 24 is a schematic structural diagram of a network device provided by an embodiment of the present application, for example, may be a schematic structural diagram of a base station.
  • the base station 3000 can be applied to the system shown in FIG. 1 to perform the functions of the network equipment in the foregoing method embodiment.
  • the base station 3000 may include one or more radio frequency units, such as a remote radio unit (RRU) 3100 and one or more baseband units (BBU) (also known as distributed unit (DU) )) 3200.
  • RRU 3100 may be called a transceiving unit or a communication unit, and corresponds to the transceiving unit 1100 in FIG. 22.
  • the transceiver unit 3100 may also be called a transceiver, a transceiver circuit, or a transceiver, etc., and it may include at least one antenna 3101 and a radio frequency unit 3102.
  • the transceiver unit 3100 may include a receiving unit and a transmitting unit, the receiving unit may correspond to a receiver (or receiver, receiving circuit), and the transmitting unit may correspond to a transmitter (or transmitter or transmitting circuit).
  • the RRU 3100 part is mainly used for receiving and sending radio frequency signals and converting radio frequency signals and baseband signals.
  • the 3200 part of the BBU is mainly used for baseband processing, control of the base station, and so on.
  • the RRU 3100 and the BBU 3200 may be physically set together, or may be physically separated, that is, a distributed base station.
  • the BBU 3200 is the control center of the base station, and may also be referred to as a processing unit, which may correspond to the processing unit 1200 in FIG. 22, and is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, and spreading.
  • the BBU processing unit
  • the BBU may be used to control the base station to execute the operation procedure of the network device in the foregoing method embodiment.
  • the BBU 3200 may be composed of one or more single boards, and multiple single boards may jointly support a radio access network (such as an LTE network) of a single access standard, or support different access standards. Wireless access network (such as LTE network, 5G network or other networks).
  • the BBU 3200 also includes a memory 3201 and a processor 3202.
  • the memory 3201 is used to store necessary instructions and data.
  • the processor 3202 is configured to control the base station to perform necessary actions, for example, to control the base station to execute the operation procedure of the network device in the foregoing method embodiment.
  • the memory 3201 and the processor 3202 may serve one or more single boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.
  • the base station 3000 shown in FIG. 24 can implement various processes involving network devices in the foregoing method embodiments.
  • the operation or function of each module in the base station 3000 is to implement the corresponding process in the foregoing method embodiment.
  • the above-mentioned BBU 3200 can be used to perform the actions described in the previous method embodiments implemented by the network device, and the RRU 3100 can be used to perform the actions described in the previous method embodiments that the network device sends to or receives from the terminal device.
  • the RRU 3100 can be used to perform the actions described in the previous method embodiments that the network device sends to or receives from the terminal device.
  • the present application also provides a computer program product, the computer program product includes: computer program code, when the computer program code runs on a computer, the computer executes any of the foregoing method embodiments The method on the side of the terminal device.
  • the present application also provides a computer-readable medium storing program code, which when the program code runs on a computer, causes the computer to execute the network in the foregoing method embodiment The method on the device side.
  • the present application also provides a system, which includes the aforementioned one or more terminal devices and the aforementioned one or more network devices.
  • An embodiment of the present application also provides a processing device, including a processor and an interface; the processor is configured to execute the communication method in any of the foregoing method embodiments.
  • the processing device may be a chip.
  • the processing device may be a field programmable gate array (FPGA), a general-purpose processor, a digital signal processor (digital signal processor, DSP), or an application specific integrated circuit (ASIC) , Ready-made programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, or system on chip (SoC), or central processing
  • the central processor unit (CPU) can also be a network processor (NP), a digital signal processing circuit (digital signal processor, DSP), or a microcontroller (microcontroller unit, MCU) It can also be a programmable logic device (PLD) or other integrated chips.
  • NP network processor
  • DSP digital signal processor
  • MCU microcontroller
  • PLD programmable logic device
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • dynamic RAM dynamic RAM
  • DRAM dynamic random access memory
  • synchronous dynamic random access memory synchronous DRAM, SDRAM
  • double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • synchronous connection dynamic random access memory serial DRAM, SLDRAM
  • direct rambus RAM direct rambus RAM
  • the computer may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it can be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk (solid state disc), SSD)) etc.
  • the network equipment in each of the above-mentioned device embodiments corresponds completely to the network equipment or terminal equipment in the terminal equipment and method embodiments, and the corresponding modules or units execute the corresponding steps.
  • the communication unit executes the receiving or the terminal equipment in the method embodiments.
  • the processing unit executes the functions of specific units, refer to the corresponding method embodiments. Among them, there may be one or more processors.
  • a component may be, but is not limited to, a process, a processor, an object, an executable file, an execution thread, a program, or a computer running on the processor.
  • the application running on the computing device and the computing device can be components.
  • One or more components can reside in a process or thread of execution, and the components can be located on one computer or distributed between two or more computers.
  • these components can be executed from various computer readable media having various data structures stored thereon.
  • a component can pass a local signal based on a signal having one or more data packets (for example, data from two components that interact with another component in a local system, a distributed system, or a network, such as the Internet that interacts with other systems through a signal). Or remote process to communicate.
  • a signal having one or more data packets for example, data from two components that interact with another component in a local system, a distributed system, or a network, such as the Internet that interacts with other systems through a signal.
  • remote process to communicate for example, data from two components that interact with another component in a local system, a distributed system, or a network, such as the Internet that interacts with other systems through a signal.
  • a corresponding to B means that B is associated with A, and B can be determined according to A.
  • determining B based on A does not mean that B is determined only based on A, and B can also be determined based on A and/or other information.
  • the terminal device and/or the network device can perform some or all of the steps in the embodiment of this application. These steps or operations are only examples, and the embodiments of this application can also perform other operations or various Deformation of the operation. In addition, each step may be executed in a different order presented in the embodiment of the present application, and it may not be necessary to perform all the operations in the embodiment of the present application.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read only memory ROM, random access memory RAM, magnetic disk or optical disk and other media that can store program codes.

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Abstract

本申请提供了一种通信方法和通信装置，由网络设备向终端设备发送包括n个SL载波的信息的SL载波配置信息，终端设备可以从该n个SL载波中，为配置了重复功能的第一SLRB对应的m个逻辑信道中的每个逻辑信道选择对应的SL载波。通过为SLRB配置重复功能，并由终端设备选择与逻辑信道对应的SL载波，使得逻辑信道中的数据可以通过合适的SL载波发送，能够提高数据传输的可靠性。

Description

通信方法和通信装置 技术领域
本申请涉及通信领域，并且更具体地，涉及一种通信方法和通信装置。
背景技术
车联网(vehicle to everthing，V2X)是智能交通运输系统的关键技术，被认为是物联网体系中最有产业潜力、市场需求最明确的领域之一，具有应用空间广、产业潜力大、社会效益强的特点，对促进汽车和信息通信产业创新发展，构建汽车和交通服务新模式新业态，推动无人驾驶、辅助驾驶、智能驾驶、网联驾驶、智能网联驾驶、自动驾驶、汽车共享等技术的创新和应用，提高交通效率和安全水平具有重要意义。车联网一般是指通过装载在车上的传感器、车载终端设备等提供车辆信息，实现车辆到车辆(vehicle to vehicle，V2V)，车辆到基础设施(vehicle to infrastructure，V2I)，车辆到网络(vehicle to Network，V2N)以及车辆到行人(vehicle to pedestrian，V2P)之间的相互通信的通信网络。一般的，在V2X场景下，终端设备与其他终端设备之间进行直连通信的通信链路可以称之为边链或者侧链(sidelink，SL)。
当侧链数据传输失败时，发送端会重新传输需要发送的侧链数据。然而，这种侧链重传机制会带来时延，不能满足侧链的低时延业务的需求。为减少重传，则需要进一步提高侧链数据传输的可靠性。
发明内容
有鉴于此，本申请提供一种通信方法和通信装置，通过为侧链无线承载(sidelink radio bearer，SLRB)配置重复功能，能够提高侧链数据传输的可靠性。
第一方面，提供了一种通信方法，包括：终端设备接收网络设备发送的SL载波配置信息，该SL载波配置信息包括n个SL载波的信息，n≥2，且n为整数。然后，该终端设备从该n个SL载波中，为第一SLRB对应的m个逻辑信道中的每个逻辑信道选择对应的SL载波，m≥1，且m为整数，该第一SLRB配置了重复功能，该第一SLRB为该终端设备与其他终端设备之间的无线承载。通过本设计，网络设备为终端设备的SLRB配置重复功能，终端设备从网络设备配置的SL载波中，为该SLRB对应的逻辑信道选择合适的SL载波，示例性的有益效果，包括：能够提高侧链数据传输的可靠性。
在一种可行的设计中，该第一SLRB配置了重复功能具体为：该第一SLRB对应多个逻辑信道，并且该多个逻辑信道用于传输相同的数据。通过本设计，示例性的有益效果，包括：使得终端设备可以通过不同的逻辑信道发送数据及其副本，可以提高侧链数据传输的可靠性，减少后续可能发生的重传带来的时延。
在一种可行的设计中，该n个SL载波为网络设备为该第一SLRB配置的全部SL载波。通过本设计，示例性的有益效果，包括：可以使得终端设备为该SLRB对应的逻辑信 道选择SL载波的SL载波选择范围更大，避免由于网络设备的预先限制，终端设备无法在该n个SL载波范围内，为该SLRB对应的逻辑信道选择到合适的SL载波的问题，有利于保证该SLRB对应的逻辑信道能够对应合适的SL载波。
在一种可行的设计中，该m个逻辑信道为该第一SLRB对应的所有逻辑信道中的部分或全部逻辑信道。通过本设计，示例性的有益效果，包括：可以使得终端设备一次性给该第一SLRB对应的所有逻辑信道选择对应的SL载波，也可以使得终端设备逐一给该第一SLRB对应的所有逻辑信道选择对应的SL载波，增加了SL载波选择的灵活性。
在一种可行的设计中，该第一SLRB对应的所有逻辑信道中的每个逻辑信道对应该n个SL载波中的至少一个SL载波，且该第一SLRB对应的所有逻辑信道中的任意两个逻辑信道所对应的SL载波之间没有交集。通过本设计，示例性的有益效果，包括：可以使得SLRB的数据与重复数据可以通过不同的SL载波发送，从而保证了频率分集增益。
结合第一方面，在第一方面的某些实现方式中，该SL载波配置信息还包括该n个SL载波中的每个SL载波对应的至少一个SL发送资源池的信息。通过本设计，示例性的有益效果，包括：可以更具体的指示SL发送资源。
结合第一方面，在第一方面的某些实现方式中，该终端设备从该n个SL载波中，为第一SLRB对应的m个逻辑信道中的每个逻辑信道选择对应的SL载波，包括：该终端设备从该n个SL载波中确定有可用SL资源的发送资源池所对应的载波；该终端设备从该有可用SL资源的发送资源池所对应的载波中，为该m个逻辑信道中的每个逻辑信道选择对应的SL载波。通过本设计，示例性的有益效果，包括：可以保证终端设备为该SLRB对应的逻辑信道选择有可用SL资源的SL载波。
结合第一方面，在第一方面的某些实现方式中，该终端设备从该n个SL载波中，为第一SLRB对应的m个逻辑信道中的每个逻辑信道选择对应的SL载波，包括：该终端设备确定该n个SL载波对应的测量结果中测量结果最好的w个SL载波，该测量结果为信道忙碌比率(channel busy ratio，CBR)或信道质量指示(channel quality indication，CQI)，w≤n，且w为整数；该终端设备从该w个SL载波中，为该m个逻辑信道中的每个逻辑信道选择至少一个SL载波，其中，该至少一个SL载波为该逻辑信道所对应的部分或全部SL载波。通过本设计，示例性的有益效果，包括：可以保证该SLRB对应的不同逻辑信道均对应有测量结果较好的SL资源的SL载波，或者说可以使得测量结果较好的SL资源的SL载波在该SLRB对应的不同逻辑信道中均匀分布对应，可以避免该SLRB对应的不同逻辑信道所对应的SL载波之间的链路质量差距过大，从而可以提高侧链传输可靠性。
应理解，该测量结果最好的w个SL载波，可以指的是该w个测量结果比剩余的n-w个测量结果都要好即可。
结合第一方面，在第一方面的某些实现方式中，该终端设备从该n个SL载波中，为第一侧链无线承载SLRB对应的m个逻辑信道中的每个逻辑信道选择对应的SL载波，包括：该终端设备在满足触发条件的情况下，从该n个SL载波中，为第一SLRB对应的m个逻辑信道中的每个逻辑信道选择对应的SL载波。通过本设计，示例性的有益效果，包括：可以在一定条件下，由终端设备为该SLRB对应的逻辑信道选择SL载波，提高了SL载波选择的执行主体的灵活性。
在一种可行的设计中，触发条件可以是网络设备激活了第一SLRB的重复功能，或者 n个SL载波中测量结果最好的SL载波没有与第一SLRB中的任一逻辑信道对应，或者与第一SLRB对应的SL载波的测量结果都比那些没有与第一SLRB对应的SL载波的测量结果差，或者没有与第一SLRB对应的SL载波中存在测量结果比与第一SLRB对应的SL载波的测量结果都好的SL载波。通过本设计，示例性的有益效果，包括：可以使得SL载波选择在合适的时机被触发，可以更好的保证该SLRB对应的逻辑信道能够对应合适的SL载波。
结合第一方面，在第一方面的某些实现方式中，终端设备接收网络设备发送的侧链SL载波配置信息，包括：该终端设备接收网络设备发送的SL配置信息，该SL配置信息包括该SL载波配置信息，该SL配置信息还用于指示该第一SLRB对应的所有逻辑信道中的每个逻辑信道与SL载波的初始对应关系。通过本设计，示例性的有益效果，包括：可以保证在终端设备进行SL载波选择前，该SLRB的数据及副本就可以根据该初始对应关系发送。
结合第一方面，在第一方面的某些实现方式中，该方法还包括：该终端设备向网络设备发送第一指示信息，该第一指示信息用于指示该m个逻辑信道中的每个逻辑信道与SL载波的对应关系。通过本设计，示例性的有益效果，包括：终端设备通过向网络设备上报自己所确定的逻辑信道与SL载波的对应关系，有利于网络设备根据逻辑信道与SL载波的对应关系进行后续资源分配，以便网络设备更好的进行SL载波管理，例如更好地配置上述初始对应关系。
结合第一方面，在第一方面的某些实现方式中，在该终端设备为该m个逻辑信道中的第一逻辑信道选择对应的SL载波之前，该第一逻辑信道对应第一SL载波，该方法还包括：在该终端设备为该m个逻辑信道中的第一逻辑信道选择对应的SL载波之后，该终端设备在该第一SL载波上发送该第一SL载波对应的缓存中未发送完的数据。通过本设计，示例性的有益效果，包括：可以保证对应关系变化后，变化之前未发送完的数据及时发送。
结合第一方面，在第一方面的某些实现方式中，该第一SLRB对应的所有逻辑信道中的每个逻辑信道与SL载波的对应关系使得下述中的至少一项满足：重复的分组数据汇聚协议(packet data convergence protocol，PDCP)协议数据单元(protocol data unit，PDU)被放在不同的SL载波对应的缓存中；重复的PDCP PDU被封装在不同的媒体接入控制协议数据单元(media access element，MAC)PDU中。通过本设计，示例性的有益效果，包括：可以使得SLRB的数据与重复数据可以通过不同的SL载波或者MAC PDU发送，从而保证了分集增益。
在一种可行的设计中，该SL载波配置信息可以通过无线资源控制(radio resource control，RRC)消息或者广播消息携带。其中，RRC消息也可以称为RRC信令。通过本设计，示例性的有益效果，包括：网络设备可以灵活的下发该SL载波配置信息。
第二方面，提供了一种通信方法，包括：网络设备发送侧链SL载波配置信息，该SL载波配置信息包括n个SL载波的信息，n≥2，且n为整数；该网络设备接收终端设备发送的第一指示信息，该第一指示信息用于指示第一侧链无线承载SLRB对应的m个逻辑信道中的每个逻辑信道与SL载波的对应关系，m≥1，且m为整数。其中，该第一SLRB配置了重复功能，该第一SLRB为该终端设备与其他终端设备之间的无线承载。
根据本申请提供的方法，通过为SLRB配置重复功能，可以提高数据传输的可靠性。另一方面，通过由终端设备选择与逻辑信道对应的SL载波，使得逻辑信道中的数据可以通过合适的SL载波发送，从而能够进一步提高数据传输的可靠性。此外，终端设备通过向网络设备上报自己所确定的逻辑信道与SL载波的对应关系，有利于网络设备根据逻辑信道与SL载波的对应关系进行后续资源分配。
第三方面，提供了一种通信方法，包括：终端设备接收网络设备发送的SL载波配置信息和SLRB配置信息，其中，该SL载波配置信息用于配置n个SL载波，该SLRB配置信息用于配置第一SLRB，并且该SLRB配置信息用于指示该第一SLRB与第一目的标识(destination identifier，DST ID)对应，该第一SLRB配置了重复功能，该第一SLRB为该终端设备与其他终端设备之间的无线承载，n≥2，且n为整数。该终端设备接收该网络设备发送的第一信息，该第一信息用于指示该第一目的标识，以及指示该第一SLRB对应的m个逻辑信道中的每个逻辑信道与SL载波的对应关系，m≥1，且m为整数。
第四方面，提供了一种通信方法，包括：网络设备向终端设备发送SL载波配置信息和SLRB配置信息，其中，该SL载波配置信息用于配置n个SL载波，该SLRB配置信息用于配置第一SLRB，并且该SLRB配置信息用于指示该第一SLRB与第一目的标识对应，该第一SLRB配置了重复功能，该第一SLRB为该终端设备与其他终端设备之间的无线承载n≥2，且n为整数。该网络设备向该终端设备发送第一信息，该第一信息用于指示该第一目的标识，以及指示该第一SLRB对应的m个逻辑信道中的每个逻辑信道与SL载波的对应关系，m≥1，且m为整数。通过本设计，示例性的有益效果，包括：可以使得网络设备可以灵活调整该SLRB的逻辑信道与SL载波的对应关系，可以更好的保证该SLRB对应的逻辑信道能够对应合适的SL载波。
在一种可行的设计中，该第一SLRB配置了重复功能具体为：该第一SLRB对应多个逻辑信道，并且该多个逻辑信道用于传输相同的数据。
在一种可行的设计中，该m个逻辑信道为该第一SLRB对应的所有逻辑信道中的部分或全部逻辑信道
在一种可行的设计中，该SL载波配置信息和SLRB配置信息可以通过RRC消息或者广播消息携带。其中，RRC消息也可以称为RRC信令。
在一种可行的设计中，该第一SLRB对应的所有逻辑信道中的每个逻辑信道对应该n个SL载波中的至少一个SL载波，且该第一SLRB对应的所有逻辑信道中的任意两个逻辑信道所对应的SL载波之间没有交集。
结合第三方面和第四方面，在某些实现方式中，该第一信息为媒体接入控制控制单元(media access control control element，MAC CE)。通过本设计，示例性的有益效果，包括：通过MAC CE配置逻辑信道与SL载波的对应关系，而不是其他消息(例如RRC消息)，可以快速灵活调整逻辑信道与SL载波的对应关系。
结合第三方面和第四方面，在某些实现方式中，该第一信息包括第一域、第二域和该第二域对应的v个F i域。其中，该第一域包括指示该第一目的标识的信息。该第二域包括该第一SLRB标识，或者，该第二域包括该第一SLRB标识对应的索引。每个F i域占用至少一个比特位，i的取值为0至v-1，且i为整数，v为该终端设备最多能够支持的SL载波数量，v≥n，且v为整数，该F i域对应SL载波标识列表中的第i+1个SL载波标识所指 示的SL载波，并指示该SL载波与该m个逻辑信道中的哪个逻辑信道对应，该v个F i域所对应的v个SL载波包括该n个SL载波。
结合第三方面和第四方面，在某些实现方式中，该第一信息包括第一域、m个第二域和每个第二域对应的v个F i域。其中，该第一域包括指示该第一目的标识的信息。该m个第二域与该m个逻辑信道一一对应，该第二域包括其对应的逻辑信道标识，或者该第二域包括其对应的逻辑信道标识在逻辑信道标识列表中的位置。每个F i域占用一个比特位，i的取值为0至v-1，且i为整数，v为该终端设备最多能够支持的SL载波数量，v≥n，且v为整数，该F i域对应SL载波标识列表中的第i+1个SL载波标识所指示的SL载波，并指示该SL载波是否与该F i域对应的第二域所对应的逻辑信道对应，该v个F i域所对应的v个SL载波包括该n个SL载波。
结合第三方面和第四方面，在某些实现方式中，该第一信息还包括保留位，该保留位用于保持字节对齐。
结合第三方面，在某些实现方式中，在该终端设备接收该网络设备发送的第一信息之前，该方法还包括：该终端设备向该网络设备上报该第一目的标识及该第一目的标识对应的SL频率信息。
结合第四方面，在某些实现方式中，该网络设备向该终端设备发送第一信息之前，该方法还包括：该网络设备接收该终端设备上报的该第一目的标识及该第一目的标识对应的SL频率信息。
第五方面，提供了一种通信方法，包括：终端设备接收网络设备发送的侧链无线承载SLRB配置信息，该SLRB配置信息用于配置p个SLRB以及用于指示该p个SLRB与第一目的标识对应，该p个SLRB配置了重复功能，p≥1，且p为整数；该终端设备接收该网络设备发送的第一信息，该第一信息用于指示该第一目的标识以及该p个SLRB中激活重复功能的SLRB，和/或，去激活重复功能的SLRB。通过本设计，示例性的有益效果，包括：可以使得网络设备灵活调整SLRB的重复功能，可以帮助终端设备更好的管理网络设备配置的SLRB。
第六方面，提供了一种通信方法，包括：网络设备向终端设备发送侧链承载SLRB配置信息，该SLRB配置信息用于配置p个SLRB以及用于指示该p个SLRB与第一目的标识对应，该p个SLRB配置了重复功能，p≥1，且p为整数；该网络设备向该终端设备发送第一信息，该第一信息用于指示该第一目的标识以及该p个SLRB中激活重复功能的SLRB和/或去激活重复功能的SLRB。通过本设计，示例性的有益效果，包括：网络设备可以根据实际需求，灵活激活/去激活SLRB的重复功能，从而有利于提高系统性能。
在一种可行的设计中，该第一SLRB配置了重复功能具体为：该第一SLRB对应多个逻辑信道，并且该多个逻辑信道用于传输相同的数据。
在一种可行的设计中，该SLRB配置信息可以通过RRC消息或者广播消息携带。其中，RRC消息也可以称为RRC信令。
结合第五方面和第六方面，在某些实现方式中，该第一信息为MAC CE。通过本设计，示例性的有益效果，包括：可以快速激活/去激活SLRB的重复功能。
结合第五方面和第六方面，在某些实现方式中，该第一信息包括第一域和p个B i域。其中，该第一域包括指示该第一目的标识的信息。每个B i域占用一个比特位，i的取值为 0至p-1，且i为整数，该B i域对应SLRB标识列表中的第i+1个SLRB标识所指示的SLRB，并指示该SLRB的重复功能处于激活状态还是去激活状态，该SLRB标识列表中的该p个SLRB标识按照SLRB标识升序或者降序排列。
结合第五方面和第六方面，在某些实现方式中，该第一信息包括第一域和v个B i域，v为每个目的标识对应的目的地址最多能够配置的SLRB数量，v>p，且v为整数。其中，该第一域包括指示该第一目的标识的信息。每个B i域占用一个比特位，i的取值为0至v-1，且i为整数，该B i域对应SLRB标识列表中的第i+1个SLRB标识所指示的SLRB，若该B i域对应的SLRB配置有重复功能，该B i域指示其对应的SLRB的重复功能处于激活状态还是去激活状态，该v个B i域所对应的v个SLRB包括该p个SLRB。
在一种可行的设计中，该第一信息还用于指示除该第一目的标识以外的其他w-1个目的标识分别对应的SLRB中激活重复功能的SLRB和/或去激活重复功能的SLRB，1≤w≤n，n为预设的整数。通过本设计，示例性的有益效果，包括：在w较小时，通过这样的格式指示激活重复功能的SLRB和/或去激活重复功能的SLRB，可以节省信令开销。
结合第五方面，在某些实现方式中，若该网络设备为该第一目的标识配置的SLRB中不包括该B i域所对应的SLRB，该终端设备忽略该B i域；和/或，若该B i域对应的SLRB没有配置重复功能，该终端设备忽略该B i域。
结合第六方面，在某些实现方式中，若该网络设备为该第一目的标识配置的SLRB中不包括该B i域所对应的SLRB，该网络设备设置该B i域包括默认值；和/或，若该B i域对应的SLRB没有配置重复功能，该网络设备设置该B i域包括默认值。
结合第五方面和第六方面，在某些实现方式中，该第一信息还包括保留位，该保留位用于保持字节对齐。
结合第五方面和第六方面，在某些实现方式中，该第一信息包括s个DST j域和r组v个B i域，2≤r≤s，且s和r均为整数，s为该终端设备最多能够支持的目的标识的数量或者为该网络设备为该终端设备配置的目的标识的数量。其中，每个DST j域占用一个比特位，j的取值为0至s-1，且j为整数，该DST j域与目的标识列表中的第j+1个目的标识对应，该DST j域用于指示该第一信息中是否存在与该DST j域对应的一组v个B i域，该s个DST j域所对应的目的标识中包括该第一目的标识。该r组v个B i域与该s个DST j域中的r个DST j域一一对应，该r个DST j域为s个DST j域中指示存在对应的一组v个B i域的r个DST j域，每个B i域占用一个比特位，i的取值为0至v-1，且i为整数，v为目的标识最多能够对应的SLRB数量，v为整数，该B i域对应该B i域对应的DST j域所对应的SLRB标识列表中的第i+1个SLRB标识所指示的SLRB，若该B i域对应的SLRB配置有重复功能，该B i域指示其对应的SLRB的重复功能处于激活状态还是去激活状态，该第一目的标识的DST j域所对应的一组v个B i域对应的SLRB包括该p个SLRB。
在一种可行的设计中，该第一信息还用于指示除该第一目的标识以外的其他w-1个目的标识分别对应的SLRB中激活重复功能的SLRB和/或去激活重复功能的SLRB，w＞n，n为预设的整数。通过本设计，示例性的有益效果，包括：在w较大时，通过这样的格式指示激活重复功能的SLRB和/或去激活重复功能的SLRB，可以节省信令开销。
结合第五方面，在某些实现方式中，若该网络设备为该第一目的标识配置的SLRB中不包括该B i域所对应的SLRB，该终端设备忽略该B i域；和/或，若该B i域对应的SLRB 没有配置重复功能，该终端设备忽略该B i域。
结合第六方面，在某些实现方式中，若该网络设备为该第一目的标识配置的SLRB中不包括该B i域所对应的SLRB，该网络设备设置该Bi域包括默认值；和/或，若该B i域对应的SLRB没有配置重复功能，该网络设备设置该B i域包括默认值。
第七方面，提供了一种通信装置，包括用于执行第一方面、第三方面或第五方面、或第一方面、第三方面或第五方面中任一种可能实现方式中的方法的各个模块或单元。
第八方面，提供了一种通信装置，包括用于执行第二方面、第四方面或第六方面、或第二方面、第四方面或第六方面中任一种可能实现方式中的方法的各个模块或单元。
第九方面，提供了一种装置，包括处理器。该处理器可用于执行涉及的指令，以使得该装置执行上述第一方面、第三方面或第五方面、或第一方面、第三方面或第五方面中任一种可能实现方式中的方法。可选地，该装置还可以包括存储器，该存储器与处理器耦合，该存储器中存储有还涉及的指令。可选地，该装置还可以包括接口电路，接口电路与处理器耦合。
第十方面，提供了一种装置，包括处理器。该处理器可用于执行涉及的指令，以使得该装置执行上述第二方面、第四方面或第六方面、或第二方面、第四方面或第六方面中任一种可能实现方式中的方法。可选地，该装置还可以包括存储器，该存储器与处理器耦合，该存储器中存储有还涉及的指令。可选地，该装置还可以包括接口电路，接口电路与处理器耦合。
第十一方面，提供了一种处理器，包括：输入电路、输出电路和处理电路。该处理电路用于通过该输入电路接收信号，并通过该输出电路发射信号，使得该处理器执行第一方面至第六方面或第一方面至第六方面中任一种可能实现方式中的方法。
在具体实现过程中，上述装置或处理器可以为芯片，输入电路可以为输入管脚，输出电路可以为输出管脚，处理电路可以为晶体管、门电路、触发器和各种逻辑电路等。输入电路所接收的输入的信号可以是由例如但不限于接收器接收并输入的，输出电路所输出的信号可以是例如但不限于输出给发射器并由发射器发射的，且输入电路和输出电路可以是同一电路，该电路在不同的时刻分别用作输入电路和输出电路。本申请实施例对处理器及各种电路的具体实现方式不做限定。
第十二方面，提供了一种处理装置，包括处理器和存储器。该处理器用于读取存储器中存储的指令，并可通过接收器接收信号，通过发射器发射信号，以执行第一方面至第六方面或第一方面至第六方面中任一种可能实现方式中的方法。
在一种可行的设计中，该处理器为一个或多个，该存储器为一个或多个。
在一种可行的设计中，该存储器可以与该处理器集成在一起，或者该存储器与处理器分离设置。
在具体实现过程中，存储器可以为非瞬时性(non-transitory)存储器，例如只读存储器(read only memory，ROM)，其可以与处理器集成在同一块芯片上，也可以分别设置在不同的芯片上，本申请实施例对存储器的类型以及存储器与处理器的设置方式不做限定。
应理解，相关的信息交互过程例如发送SL载波配置信息可以为从处理器输出上控制信息的过程，接收SL载波配置信息可以为处理器接收SL载波配置信息的过程。具体地， 处理输出的数据可以输出给发射器，处理器接收的输入数据可以来自接收器。其中，发射器和接收器可以统称为收发器。
上述第十二方面中的处理装置可以是一个芯片，该处理器可以通过硬件来实现也可以通过软件来实现，当通过硬件实现时，该处理器可以是逻辑电路、集成电路等；当通过软件来实现时，该处理器可以是一个通用处理器，通过读取存储器中存储的软件代码来实现，该存储器可以集成在处理器中，可以位于该处理器之外，独立存在。
第十三方面，提供了一种计算机程序产品，该计算机程序产品包括：计算机程序(也可以称为代码，或指令)，当该计算机程序被运行时，使得计算机执行上述第一方面至第六方面以及第一方面至第六方面中任一种可能实现方式中的方法。
第十四方面，提供了一种计算机可读介质，该计算机可读介质存储有计算机程序(也可以称为代码，或指令)当其在计算机上运行时，使得计算机执行上述第一方面至第六方面以及第一方面至第六方面中任一种可能实现方式中的方法。
第十五方面，提供了一种通信系统，包括前述的网络设备和/或终端设备。
附图说明
图1是V2X通信架构的一个示意图；
图2是本申请提供的通信方法的示意性流程图；
图3是PDCP与逻辑信道的对应关系的示意图；
图4是逻辑信道与SL载波对应关系更改前后的示意图；
图5是本申请提供的另一通信方法的示意性流程图；
图6至图11分别是本申请提供的第一信息的格式示意图；
图12是本申请提供的另一通信方法的示意性流程图；
图13至图21分别是本申请提供的第一信息的格式示意图；
图22是本申请提供的一种装置的示意性框图；
图23是本申请提供的一种终端设备的结构示意图；
图24是本申请提供的另一种装置的示意性框图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。示例性的，本申请实施例所涉及附图中的以虚线标识的特征或内容可理解为实施例可选的操作或者可选的结构。
本申请实施例的技术方案可以应用于各种通信系统，例如：长期演进(Long Term Evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)、通用移动通信系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统、未来的第五代(5th generation，5G)移动通信系统或新无线接入技术(new radio access technology，NR)。其中，5G移动通信系统可以包括非独立组网(non-standalone，NSA)和/或独立组网(standalone，SA)。
本申请提供的技术方案还可以应用于机器类通信(machine type communication，MTC)、机器间通信长期演进技术(Long Term Evolution-machine，LTE-M)、设备到设 备(device to device，D2D)网络、机器到机器(machine to machine，M2M)网络、物联网(internet of things，IoT)网络或者其他网络。其中，IoT网络例如可以包括车联网。其中，车联网系统中的通信方式统称为车到其他设备(vehicle to X，V2X，X可以代表任何事物)，例如，该V2X可以包括：车辆到车辆(vehicle to vehicle，V2V)通信，车辆与基础设施(vehicle to infrastructure，V2I)通信、车辆与行人之间的通信(vehicle to pedestrian，V2P)或车辆与网络(vehicle to network，V2N)通信等。
本申请提供的技术方案还可以应用于未来的通信系统，如第六代移动通信系统等。本申请对此不做限定。
本申请实施例中，网络设备可以是任意一种具有无线收发功能的设备。该设备包括但不限于：演进型节点B(evolved Node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(Node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(例如，home evolved NodeB，或home Node B，HNB)、基带单元(baseband unit，BBU)，无线保真(wireless fidelity，WiFi)系统中的接入点(access point，AP)、无线中继节点、无线回传节点、传输点(transmission point，TP)或者发送接收点(transmission and reception point，TRP)等，还可以为5G，如，NR，系统中的gNB，或，传输点(TRP或TP)，5G系统中的基站的一个或一组(包括多个天线面板)天线面板，或者，还可以为构成gNB或传输点的网络节点，如基带单元(BBU)，或，分布式单元(distributed unit，DU)等。
在一些部署中，gNB可以包括集中式单元(centralized unit，CU)和DU。gNB还可以包括有源天线单元(active antenna unit，AAU)。CU实现gNB的部分功能，DU实现gNB的部分功能，比如，CU负责处理非实时协议和服务，实现无线资源控制(radio resource control，RRC)，分组数据汇聚层协议(packet data convergence protocol，PDCP)层的功能。DU负责处理物理层协议和实时服务，实现无线链路控制(radio link control，RLC)层、媒体接入控制(media access control，MAC)层和物理(physical，PHY)层的功能。AAU实现部分物理层处理功能、射频处理及有源天线的相关功能。由于RRC层的信息最终会变成PHY层的信息，或者，由PHY层的信息转变而来，因而，在这种架构下，高层信令，如RRC层信令，也可以认为是由DU发送的，或者，由DU+AAU发送的。可以理解的是，网络设备可以为包括CU节点、DU节点、AAU节点中一项或多项的设备。此外，可以将CU划分为接入网(radio access network，RAN)中的网络设备，也可以将CU划分为核心网(core network，CN)中的网络设备，本申请实施例对此不做限定。
在本申请实施例中，终端设备可以称之为用户设备(user equipment，UE)、终端(terminal)、移动台(mobile station，MS)和移动终端(mobile terminal)等；该终端设备还可以经无线接入网(radio access network，RAN)与一个或多个核心网进行通信。该终端设备还可称为接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。终端设备还可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字处理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、具有通信功能的车辆、可穿戴设备以及未来5G网络中的终端设备等。本申请实施例对此 不做限定。
图1示出了V2X通信架构的一个示意图。如图1所示，该系统包括至少两个终端设备(如终端设备110和终端设备120)以及一个网络设备130。终端设备110可以通过PC5接口向终端设备120进行传输，网络设备130可以通过Uu接口与终端设备110进行通信。其中，PC5接口是具有V2X通信功能的终端设备之间直连通信接口，具有V2X通信功能的终端设备之间的直连通信链路也被定义为侧行链路或侧链(sidelink，SL)。
下面对本申请提供的通信方法进行说明。
应理解，本申请提供的通信方法可以应用于图1所示的系统中，例如，终端设备可以对应于图1中的终端设备110，网络设备可以对应图1中的网络设备130。下面对本申请提供的通信方法进行说明。
还应理解，下文示出的实施例以网络设备和终端设备之间的交互为例，详细说明了本申请实施例提供的方法。但这不应对本申请构成任何限定。例如，下文实施例中示出的终端设备可以替换为配置在终端设备中的部件(比如芯片、芯片系统或电路等)。下文实施例示出的网络设备也可以替换为配置在网络设备中的部件(比如芯片、芯片系统或电路等)。下文示出的实施例并未对本申请实施例提供的方法的执行主体的具体结构特别限定，只要能够通过运行记录有本申请实施例的提供的方法的代码的程序，以根据本申请实施例提供的方法进行通信即可，例如，本申请实施例提供的方法的执行主体可以是终端设备或网络设备，或者，是终端设备或网络设备中能够调用程序并执行程序的功能模块。
图2是本申请提供的通信方法的示意性流程图。下面对图2所示的方法200中的各步骤进行说明。
S210，终端设备向网络设备上报侧链信息。相应地，网络设备接收终端设备发送的侧链信息。
该侧链信息可以包括终端设备感兴趣的至少一个业务的相关信息，比如可以包括至少一个业务的目的标识(destination identifier，DST ID)和每个DST ID对应的SL频率信息。所述业务可以广播业务、单播业务或者组播业务，本申请不做限定。进一步地，所述业务可以是V2X业务。示例性的，若某一业务为广播业务，该业务对应的DST ID可以是该业务对应的默认层2(layer 2，L2)标识；若某一业务为单播业务，该业务对应的DST ID可以是单播连接的对端终端设备为该单播连接分配的L2标识；若某一业务为组播业务，该业务对应的DST ID可以是该组的L2标识。
可选地，该侧链信息还可以包括每个DST ID对应的服务质量(quality of service，QoS)信息。所述QoS信息也可以通过另外一条消息上报给网络设备，本申请不做限定。
示例性的，所述侧链信息可以是协议中的SidelinkUEInformation(侧链UE信息)消息，但本申请对此不作限定。
S220，网络设备向终端设备发送SL配置信息。
示例性的，网络设备可以根据DST ID与SL频率信息的对应关系以及DST ID对应的QoS信息，确定并为终端设备提供SL配置信息。
示例性的，SL配置信息可以通过RRC信令或者广播消息携带，本申请不作限定。
其中，SL配置信息可以包括SLRB配置信息和SL载波配置信息。
所述SLRB配置信息用于配置至少一个SLRB。比如，SLRB配置信息可以包括至少 一个SLRB的指示信息和每个SLRB对应的逻辑信道的指示信息。示例性的，SLRB的指示信息可以是SLRB ID，所述逻辑信道的指示信息可以是逻辑信道标识(logical channel identifier，LCID)，但本申请对此不作限定，但需要说明的是，为便于描述，下文中均以SLRB ID指示SLRB，LCID指示逻辑信道为例进行说明。
可选地，SLRB配置信息还可以指示每个SLRB对应的DST ID，其中一个DST ID可以对应一个或多个SLRB。示例性的，网络设备通过SL配置信息所配置的SLRB中的部分或全部SLRB可以对应终端设备向网络设备上报的至少一个DST ID中的部分或全部DST ID。
示例性的，当SL配置信息通过广播消息携带时，SLRB配置信息可以仅指示至少一个SLRB和每个SLRB对应的逻辑信道。此时该方法可以不包括S210。当SL配置信息通过RRC消息携带时，SLRB配置信息还可以用于指示每个SLRB对应的DST ID。此时该方法可以包括S210。
所述SLRB配置信息还可以指示每个SLRB是否配置了重复功能。其中，配置了重复功能的SLRB可以对应多个逻辑信道，这多个逻辑信道可以传输相同的数据。未配置重复功能的SLRB仅对应一个逻辑信道。具体来讲，配置了重复功能的SLRB对应的有一个开启重复功能的分组数据汇聚层协议(packet data convergence protocol，PDCP)实体和多个无线链路控制(radio link control，RLC)实体，每个RLC实体对应有一个逻辑信道，该PDCP实体可以将一个PDCP协议数据单元(protocol data unit，PDU)复制成多份，分别传递给这多个RLC实体发送。
以配置了重复功能的其中一个SLRB为例进行说明。为便于描述，将该SLRB记作：第一SLRB。第一SLRB为该终端设备与其他终端设备之间的无线承载。如图3所示，第一SLRB可以对应两个RLC实体，其中一个RLC实体对应逻辑信道#1，另一个RLC实体对应逻辑信道#2，同一个PDCP PDU可以通过逻辑信道#1和逻辑信道#2发送。
所述SL载波配置信息用于配置n个SL载波，比如，SL载波配置信息可以包括n个频率，每个频率对应一个SL载波。其中，n≥2，且n为整数。应理解，SL载波用于SL通信。
可选地，SL载波配置信息还可以包括下述中的一项或两项：所述n个SL载波中的每个SL载波的频率信息；所述n个SL载波中每个SL载波对应的至少一个SL发送资源池的信息。
在获得SL配置信息后，终端设备可以决定配置了重复功能的SLRB所对应的部分或全部逻辑信道与SL载波的对应关系。同样地，为便于理解，以第一SLRB为例，结合S230进行说明。
S230，终端设备确定m个逻辑信道与SL载波的对应关系。
具体地，终端设备从所述n个SL载波中，为第一SLRB对应的m个逻辑信道中的每个逻辑信道选择对应的SL载波，1≤m≤n，且m为整数。其中，所述m个逻辑信道为第一SLRB对应的所有逻辑信道中的部分或全部逻辑信道。也就是说，在某一时刻，终端设备可以决定(即，自主确定)第一SLRB对应的所有逻辑信道中的部分或全部逻辑信道与SL载波的对应关系。比如，在t1时刻，终端设备可以自主确定第一SLRB对应的所有逻辑信道中的每个逻辑信道与SL载波的对应关系，在t2时刻，终端设备可以对t1时刻所确 定的逻辑信道与SL载波的对应关系进行更改，比如终端设备可以仅更改第一SLRB对应的所有逻辑信道中的部分逻辑信道与SL载波的对应关系，也可以更改第一SLRB对应的所有逻辑信道中的全部逻辑信道与SL载波的对应关系。
本申请中，该n个SL载波可以为网络设备为该第一SLRB配置的全部SL载波，或者网络设备只为该第一SLRB配置了n个SL载波。这样可以避免由于预先限制，例如协议或者网络设备规定该网络设备配置的SL载波中的一部分载波只可能对应该SLRB的一部分逻辑信道，另一部分载波只可能对应该SLRB的另一部分逻辑信道，导致终端设备无法在网络设备配置的SL载波范围内，为该SLRB对应的任一逻辑信道选择到合适的SL载波的问题。这样可以使得终端设备为该SLRB对应的逻辑信道选择SL载波的SL载波选择范围更大，可以使得该终端设备可以在该网络设备为该第一SLRB配置的全部SL载波中，为该SLRB对应的任一逻辑信道选择到合适的SL载波。
本申请中，第一SLRB对应的所有逻辑信道中的每个逻辑信道对应所述n个SL载波中的至少一个SL载波，并且第一SLRB对应的所有逻辑信道中的任意两个逻辑信道所对应的SL载波之间没有交集。
比如，我们可以称每个逻辑信道对应一个SL载波集合，该SL载波集合包括所述n个SL载波中的一个或多个载波，并且任意两个逻辑信道对应的两个SL载波集合没有交集。应理解，任意两个逻辑信道对应的SL载波的数量可以相同，也可以不同，本申请不作限定。
应理解S210和S220为可选步骤，即S230的执行可以不依赖于S210和S220。这里的意思是，终端设备只需要获知所述n个SL载波以及第一SLRB对应的逻辑信道(或者LCID)，就可以在合适的时机执行S230，而不需要在执行S230之前都执行S210和S220步骤。
示例性的，S230可以在满足触发条件时执行。比如，该触发条件可以是网络设备激活了第一SLRB的重复功能，或者n个SL载波中测量结果最好的SL载波没有与第一SLRB中的任一逻辑信道对应，或者与第一SLRB对应的SL载波的测量结果都比那些没有与第一SLRB对应的SL载波的测量结果差。再如，所述SL配置信息可以包括第一SLRB对应的所有逻辑信道中的每个逻辑信道SL载波的初始对应关系。若终端设备认为该初始对应关系不合适，则可以执行S230。
根据本申请提供的方法，通过为SLRB配置重复功能，可以提高数据传输的可靠性。另一方面，通过由终端设备选择与逻辑信道对应的SL载波，使得逻辑信道中的数据可以通过合适的SL载波发送，从而能够进一步提高数据传输的可靠性。
可选地，该方法可以包括：
S240，终端设备向网络设备发送第一信息，第一信息用于指示所述m个逻辑信道中的每个逻辑信道与SL载波的对应关系。
终端设备通过向网络设备上报自己所确定的逻辑信道与SL载波的对应关系，有利于网络设备根据逻辑信道与SL载波的对应关系进行后续资源分配。举例来说，网络设备在获知终端设备确定逻辑信道与SL载波对应关系后，进一步会收到终端设备请求资源调度的缓存状态报告(buffer status report，BSR)，根据BSR中携带的逻辑信道组与逻辑信道的对应关系，依据逻辑信道与SL载波的对应关系，能够确定终端设备请求的是哪些SL 载波上的SL资源，进而为终端设备调度相应SL载波上的SL资源。
可选地，第一信息可以通过RRC消息携带，但本申请对此不作限定。
下面对S230的可能的实现方式进行说明。
方式一
终端设备可以从所述n个SL载波对应的资源池中有可用SL资源的资源池所对应的SL载波中，为所述m个逻辑信道中的每个逻辑信道选择对应的SL载波。
具体来讲，终端设备可以通过监听(sensing)，确定与该n个SL载波分别对应的资源池中哪些资源池中有可用SL资源，然后终端设备再从有可用SL资源的资源池所对应的SL载波中，为所述m个逻辑信道中的每个逻辑信道选择对应的SL载波。
举例来说，假设m＝2，m个逻辑信道为逻辑信道#1和逻辑信道#2；n＝3，n个SL载波与资源池的对应关系为SL载波#1对应资源池#1，SL载波#2对应资源池#2，SL载波#3对应资源池#3。若终端设备通过监听，确定有可用SL资源的资源池为资源池#1和资源池#2，则终端设备可以从SL载波#1和SL载波#2中，分别为逻辑信道#1和逻辑信道#2选择对应的SL载波。比如，终端设备可以选择SL载波#1与逻辑信道#1对应，SL载波#2与逻辑信道#2对应。
方式二
终端设备确定所述n个SL载波对应的测量结果中测量结果最好的w个SL载波，然后从所述w个SL载波中，为所述m个逻辑信道中的每个逻辑信道选择至少一个SL载波，所述至少一个SL载波为所述逻辑信道所对应的部分或全部SL载波。其中，所述测量结果为信道忙碌比率CBR或信道质量指示CQI，m≤w≤n，且w为整数。
举例来说，该终端设备可以通过对该n个SL载波进行测量，确定每个SL载波的测量结果。或者，可以由第一SLRB的对端终端设备对该n个SL载波进行测量，并将每个SL载波的测量结果上报给该终端设备。然后，终端设备可以对得到的n个测量结果进行排序，选择出测量结果最好的w个测量结果。应理解，所述w个测量结果比剩余的n-w个测量结果好。比如，若测量结果为CQI，终端设备可以按照CQI由大至小的顺序，对得到的n个CQI进行排序，确定出排序靠前的w个CQI。又如，若测量结果为CBR，终端设备可以按照CBR由小至大的顺序，对得到的n个CBR进行排序，确定出排序靠前的w个CBR。w(即w的取值)可以由网络设备配置或者终端设备自己设定。接着，终端设备可以从该w个测量结果对应的w个SL载波中，为每个逻辑信道选择至少一个SL载波，作为该逻辑信道对应的部分或全部SL载波。即，每个逻辑信道对应的SL载波可以仅包括该w个SL载波中的至少一个载波，或者，每个逻辑信道对应的SL载波不仅可以包括该w个SL载波中的至少一个载波，还包括所述n个SL载波中除该w个SL载波以外的其他SL载波。
可选地，在测量结果由所述对端终端上报的情况下，对端终端也可以直接上报测量结果最好的w个测量结果以及对应的SL载波。
方式三
终端设备确定所述n个SL载波对应的测量结果中测量结果大于或等于第一预设门限的SL载波。若大于或等于第一预设门限的SL载波的数量大于或等于m，则从大于或等于第一预设门限的SL载波中，或从大于或等于第一预设门限的SL载波中对应的测量结 果最好的w个SL载波中，为所述m个逻辑信道中的每个逻辑信道选择对应的SL载波。若大于或等于第一预设门限的SL载波的数量小于m，则终端设备将从所述n个SL载波对应的测量结果中测量结果最好的w个SL载波中，为所述m个逻辑信道中的每个逻辑信道选择对应的SL载波。也就是说，若大于或等于第一预设门限的SL载波的数量小于m，则采用方式二确定逻辑信道与SL载波的对应关系。其中，所述测量结果信道质量指示CQI。第一预设门限和w可以由网络设备配置或者该终端设备自己设定，m≤w≤n，且w为整数。
比如，该终端设备可以通过对该n个SL载波进行测量，确定每个SL载波的测量结果。或者，可以由第一SLRB的对端终端设备对该n个SL载波进行测量，并将每个SL载波的测量结果上报给该终端设备。然后，终端设备确定得到的n个测量结果中大于或等于第一预设门限的测量结果。若大于或等于第一预设门限的测量结果的数量大于或等于m，则终端设备从大于或等于第一预设门限的测量结果所对应的SL载波中，为所述m个逻辑信道中的每个逻辑信道选择对应的SL载波，或者，终端设备从大于或等于第一预设门限的测量结果中测量结果最好的w个测量结果对应的SL载波中，为所述m个逻辑信道中的每个逻辑信道选择对应的SL载波。若大于或等于第一预设门限的测量结果的数量小于m，则采用方式二为所述m个逻辑信道中的每个逻辑信道选择对应的SL载波。
可选地，在测量结果由所述对端终端上报的情况下，若大于或等于第一预设门限的测量结果的数量大于或等于m，对端终端也可以直接上报大于或等于第一预设门限的测量结果以及对应的SL载波，或者上报大于或等于第一预设门限的测量结果中测量结果最好的w个测量结果以及对应的SL载波。
方式四
终端设备确定所述n个SL载波对应的测量结果中测量结果小于或等于第二预设门限的SL载波，然后从小于或等于第二预设门限的SL载波中，为所述m个逻辑信道中的每个逻辑信道选择至少一个SL载波，所述至少一个SL载波为所述逻辑信道所对应的部分或全部SL载波。若小于或等于第二预设门限的SL载波的数量小于m，则终端设备将从所述n个SL载波对应的测量结果中测量结果最好的w个SL载波中，为所述m个逻辑信道中的每个逻辑信道选择对应的SL载波。也就是说，若小于或等于第一预设门限的SL载波的数量小于m，则采用方式二确定逻辑信道与SL载波的对应关系。其中，所述测量结果为信道忙碌比率CBR。第二预设门限和w可以由网络设备配置或者该终端设备自己设定，m≤w≤n，且w为整数。该方式与方式三类似，这里不再详述。
综上，通过上述方式一至方式四中的任一种方式或多种方式的结合，可以确定所述m个逻辑信道与SL载波的对应关系，即确定所述m个逻辑信道中每个逻辑信道对应的SL载波。
应理解，本申请并不限定具体如何确定所述m个逻辑信道与SL载波的对应关系，任何合理确定所述m个逻辑信道与SL载波的对应关系的方式，都应落入本申请的保护范围。
可选地，作为本申请一个示例，所述第一SLRB对应的所有逻辑信道中的每个逻辑信道与SL载波的对应关系满足下述条件中的一个或同时满足两个条件：
(1)重复的PDCP PDU被放在不同的SL载波对应的缓存中。即，重复的PDCP PDU不会放在同一个SL载波对应的缓存中。
(2)重复的PCDP PDU被封装在不同的MAC PDU中。即，重复的PCDP PDU不会封装到同一个MAC PDU中。
举例来说，第一SLRB的逻辑信道与SL载波对应关系可能会发生改变，在变化前，第一SL载波对应第一SLRB的第一逻辑信道，在变化后，第一SL载波对应第一SLRB的第二逻辑信道。为了提高数据传输的可靠性，要求重复的PDCP PDU不能通过同一个SL载波进行发送，即不能放入同一个SL载波缓存中。可以理解为，当对应关系变为第二逻辑信道对应第一SL载波时，若第二逻辑信道上的待传数据包括第一逻辑信道在第一SL载波上传输过的PDCP PDU，则该PDCP PDU不能通过第一SL载波进行发送，或者在改变对应关系时，需要确定第二逻辑信道上的待传数据不与第一逻辑信道在第一SL载波上传输过的数据重复，才能确定第二逻辑信道与第一SL载波对应。可选的，可以允许两个逻辑信道的重复PDCP PDU在一个SL载波上进行发送，但是，如果两个重复的PDCP PDU一起传输，就可能两个PDCP PDU一起发送失败，导致可靠性降低。为了避免出现这种情况，可以要求如果出现两个重复的PDCP PDU通过一个SL载波进行传输时，要保证两个重复的PDCP PDU不会放到一起传输，即不会封装在一个MAC PDU中。
可选地，作为本申请一个示例，若在执行S230之前，第一逻辑信道对应的第一SL载波对应的缓存中的数据还未发送完成，则在执行S230之后，终端设备还可以在第一SL载波上发送所述缓存中未发送完的数据。第一逻辑信道可以是第一SLRB对应的逻辑信道中的任一逻辑信道。
结合图4进行说明。如图4所示，在t1时刻，终端设备执行S230，确定逻辑信道与SL载波的对应关系为：逻辑信道#n对应SL载波#1，逻辑信道#m对应SL载波#4。基于这样的对应关系，当SL载波#1上有可用资源时，终端设备可以将逻辑信道#n上的待传数据放入SL载波#1对应的缓存1中进行发送。类似地，当SL载波#4上有可用资源时，终端设备可以将逻辑信道#m上的待传数据放入SL载波#4对应的缓存4中进行发送。在t2时刻，终端设备再次执行S230，此时终端设备将逻辑信道#m对应的SL载波更改为SL载波#2。在此之前，放在SL载波#4对应的缓存4中的逻辑信道#m的数据可能还未发送完，这部分数据可以保留在缓存4中，继续在SL载波#4中发送。在t2时刻之后，逻辑信道#m的数据可以放入SL载波#2对应的缓存2，在SL载波#2上发送。
上文结合图2至图4，描述了由终端设备自主确定逻辑信道与SL载波的对应关系的方案。下面结合图5至图11，对本申请提供的由网络设备确定逻辑信道与SL载波的对应关系的方案，进行说明。
图5是本申请提供的另一通信方法的示意性流程图。下面对图5所示的方法300中的各步骤进行说明。
S310至S320，终端设备向网络设备上报侧链信息，网络设备向终端设备发送SL配置信息。
步骤S310至S320与S210至S220相同，具体参照上述对S210至S220所作的说明。这里需要说明的是，在方法300中，SL配置信息是在RRC连接态时发送的。
网络设备在向终端设备发送SL配置信息之后，可以向终端设备配置，配置了重复功能的SLRB所对应的部分或全部逻辑信道与SL载波的对应关系。同样地，为便于理解， 以第一SLRB为例，结合S330进行说明。
S330，网络设备向终端设备发送第一信息。
其中，第一信息用于指示第一DST ID，以及指示第一SLRB对应的m个逻辑信道中的每个逻辑信道与SL载波的对应关系，1≤m≤n，且m为整数。其中，所述m个逻辑信道为第一SLRB对应的所有逻辑信道中的部分或全部逻辑信道。也就是说，在某一时刻，网络设备可以配置第一SLRB对应的所有逻辑信道中的部分或全部逻辑信道与SL载波的对应关系。比如，在t1时刻，网络设备可以配置第一SLRB对应的所有逻辑信道中的每个逻辑信道与SL载波的对应关系，在t2时刻，网络设备可以对t1时刻所配置的逻辑信道与SL载波的对应关系进行更改，比如网络设备可以仅更改第一SLRB对应的所有逻辑信道中的部分逻辑信道与SL载波的对应关系，也可以更改第一SLRB对应的所有逻辑信道中的全部逻辑信道与SL载波的对应关系。
本申请中，第一SLRB对应的所有逻辑信道中的每个逻辑信道对应所述n个SL载波中的至少一个SL载波，并且第一SLRB对应的所有逻辑信道中的任意两个逻辑信道所对应的SL载波之间没有交集。
根据本申请提供的方法，通过为SLRB配置重复功能，可以提高数据传输的可靠性。另一方面，通过由网络设备配置逻辑信道与SL载波的对应关系，有利于实现逻辑信道中的数据通过合适的SL载波发送，从而有利于进一步提高数据传输的可靠性。
可选地，第一信息可以是MAC CE。通过MAC CE配置逻辑信道与SL载波的对应关系，可以快速灵活调整逻辑信道与SL载波的对应关系。
可选地，所述SL配置信息可以包括第一SLRB对应的所有逻辑信道中的每个逻辑信道SL载波的初始对应关系。即，所述SL配置信息可以包括第一SLRB对应的所有逻辑信道中的每个逻辑信道SL载波的对应关系。后续，网络设备可以对该初始对应关系进行更改。
在一个示例中，网络设备可以基于所述n个SL载波的测量结果，灵活调整SL载波与逻辑信道的对应关系。也就是说，网络设备可以基于所述n个SL载波的测量结果，确定所述m个逻辑信道中的每个逻辑信道与SL载波的对应关系。
例如，在一种方式中，网络设备可以首先确定所述n个SL载波对应的测量结果中测量结果最好的w个SL载波，然后从所述w个SL载波中，为所述m个逻辑信道中的每个逻辑信道选择至少一个SL载波，所述至少一个SL载波为所述逻辑信道所对应的部分或全部SL载波。其中，所述测量结果为信道忙碌比率CBR或信道质量指示CQI，m≤w≤n，且w为整数。
该方式与方法200中的“方式二”类似，不同的是，方法200中测量结果不需要反馈给网络设备，而在该方式中，测量结果需要反馈给网络设备。比如，终端设备可以对SL载波进行测量，将测量结果反馈给网络设备，或者，第一SLRB的对端终端设备可以对SL载波进行测量，并将测量结果反馈给该终端设备，然后再由该终端设备反馈给网络设备。
再如，网络设备还可以参照方法200中的“方式三”和/或“方式四”，确定所述m个逻辑信道中的每个逻辑信道与SL载波的对应关系。具体内容可以参考上文描述，这里不再赘述。
下面对第一信息的可能的格式进行说明。
格式一
第一信息包括第一域、第二域和第二域对应的v个F i域。
其中，第一域包括指示第一DST ID的信息。示例性的，指示第一DST ID的信息可以是第一DST ID。或者，指示第一DST ID的信息可以是第一DST ID对应的索引。第一DST ID对应的索引可以由网络设备指示，或者，第一DST ID对应的索引与第一DST ID在DST ID列表中的位置相关。比如，若DST ID列表中的DST ID的索引从0开始，则第一DST ID对应的索引为第一DST ID在DST ID列表中的位置减1，若DST ID列表中的DST ID的索引从1开始，则第一DST ID对应的索引为第一DST ID在DST ID列表中的位置。举例来说，DST ID列表为{DST ID#1，DST ID#2，DST ID#3，……}，假设第一DST ID为DST ID#2，则第一DST ID在DST ID列表中的位置为2。若DST ID列表中的DST ID的索引从1开始，即DST ID#1对应的索引为1，则第一DST ID对应的索引为2；若DST ID列表中的DST ID的索引从0开始，即DST ID#1对应的索引为0，则第一DST ID对应的索引为1。DST ID列表由终端设备和网络设备共同维护，DST ID列表可以包括当前所有DST ID。
第二域包括指示第一SLRB的信息。示例性的，指示第一SLRB的信息可以是第一SLRB ID或者第一SLRB ID对应的索引。第一SLRB ID对应的索引可以由网络设备指示，或者，第一SLRB ID对应的索引与第一SLRB ID在SLRB ID列表中的位置相关。比如，若SLRB ID列表中的SLRB ID的索引从0开始，则第一SLRB ID对应的索引为第一SLRB ID在SLRB ID列表中的位置减1，若SLRB ID列表中的SLRB ID的索引从1开始，则第一SLRB ID对应的索引为第一SLRB ID在SLRB ID列表中的位置。举例来说，SLRB ID列表为{SLRB ID#1，SLRB ID#2，SLRB ID#3，……}，假设第一SLRB ID为SLRB ID#2，则第一SLRB ID在SLRB ID列表中的位置为2。若SLRB ID列表中的SLRB ID的索引从1开始，即SLRB ID#1对应的索引为1，则第一SLRB ID对应的索引为2；若SLRB ID列表中的SLRB ID的索引从0开始，即SLRB ID#1对应的索引为0，则第一SLRB ID对应的索引为1。SLRB ID列表由终端设备和网络设备共同维护，SLRB ID列表可以包括第一DST ID对应的所有SLRB ID或者包括第一DST ID对应的所有配置了重复功能的SLRB ID。
所述v个F i域中的每个F i域占用至少一个比特位，i为整数，v为终端设备最多能够支持的SL载波数量，v≥n，且v为整数。i的取值可以从0开始，也可以从1开始，或者还可以从其他任一整数开始。当i的取值从0开始时，i的取值为0至v-1，所述v个F i域为F 0域至F v-1域，F i域对应SL载波列表中的第i+1个SL载波；当i的取值从1开始时，i的取值为1至v，所述v个F i域为F 1域至F v域，F i域对应SL载波列表中的第i个SL载波。i为其他取值时，F i域与SL载波的对应关系类似。F i域指示其对应的SL载波与所述m个逻辑信道中的哪个逻辑信道对应。应理解，所述v个F i域所对应的v个SL载波包括所述n个SL载波。还应理解，若n＜v，例如v＝8，n＝7，若i的取值从0开始，这意味着F 7域并不对应所述n个SL载波中的任一载波，即F 7域没有对应的SL载波，在此情况下，F 7域可以设置为默认值，终端设备默认会无视F 7域的取值。对于其他没有对应SL载波的F i域也进行相同的处理。
所述SL载波列表由终端设备和网络设备共同维护，其可以包括当前配置的所有SL载波，或者，可以仅包括第一DST ID对应的所有SL载波，或者，可以仅包括第一SLRB对应的所有SL载波。示例性的，所述n个SL载波可以是当前配置的所有SL载波，或者是第一DST ID对应的所有SL载波，或者可以是第一SLRB对应的所有SL载波。应理解，所述SL载波列表中的SL载波的数量可以大于或者等于n。还应理解，SL载波列表具体可以是SL载波对应的频率的列表，但本申请对此不作限定，比如，SL载波列表可以是SL载波ID或索引列表，该ID或索引可以是终端设备为SL载波分配的。
举例对F i域进行说明。假设SL载波列表为{SL载波#1，SL载波#2，SL载波#3，SL载波#4}，则F 0域对应SL载波#1，F 1域对应SL载波#2，F 2域对应SL载波#3，F 3域对应SL载波#4。
结合上段举例，示例性的，若第一SLRB共对应2个逻辑信道，则每个F i域可以占用一个比特位，该比特位的取值可以是0和1，这两个取值与2个逻辑信道之间具有对应关系。比如，这2个逻辑信道中其中一个可以称为主逻辑信道，另一个可以称为辅逻辑信道，若F i域为0，则表示F i域对应的SL载波与主逻辑信道对应，若F i域为1，则表示F i域对应的SL载波与辅逻辑信道对应，或者0和1的含义也可以反过来。再如，若F i域为0，则表示该F i域对应的SL载波与ID较大的逻辑信道对应，若F i域为1，则表示该F i域对应的SL载波与ID较小的逻辑信道对应，或者0和1的含义也可以反过来。
示例性的，若第一SLRB共对应4个逻辑信道，则每个F i域可以占用2个比特位，这2个比特位的取值可以是00,01,10和11，这四个取值与4个逻辑信道之间具有对应关系，比如，00,01,10，11这4个取值可以依次对应这4个逻辑信道中ID从小到大的逻辑信道。终端设备可以根据F i域的取值确定该F i域对应的SL载波与4个逻辑信道中的哪个逻辑信道对应。
应理解，所述“F i域”仅是一个名称，其可以替换为其他的名称，如“A i域”、“LC i域”等，名称并不应对本申请构成任何限定。
另外，本申请中所涉及的列表中相应的ID(若为载波列表，也可以是载波对应的频率)按照升序或者降序的顺序排列。比如，DST ID列表中的DST ID按照DST ID的取值升序或者降序排列，如DST ID列表共包括DST ID#0，DST ID#1和DST ID#2这三个DST ID，这三个DST ID在DST ID列表中的排列顺序可以是：DST ID#0，DST ID#1，DST ID#2，或者也可以是：DST ID#2，DST ID#1，DST ID#0。类似地，SLRB ID列表中的SLRB ID按照SLRB ID的取值升序或者降序排列。SL载波列表中的SL载波按照SL载波对应的频率升序或者降序排列。下文中所涉及的列表中相应的ID(若为载波列表，也可以是载波对应的频率)的排列顺序也可以参照此处的说明，下文中将不再赘述。
参见图6，图6示出了第一信息为格式一时的一个示例。图6中，第一DST ID索引，即第一DST ID对应的索引即为上述的第一域。如上文所述，第一DST ID索引也可以替换为第一DST ID。第一SLRB ID对应上述的第二域，如上文所述，第一SLRB ID也可以替换为第一SLRB ID对应的索引。F 0域至F 7域对应上述的v个F i域。应理解，这里仅以v＝8为例，本申请并不限定v的取值。
举例来说，假设所述n个SL载波为SL载波#1至SL载波#5，第一SLRB对应2个逻辑信道，即逻辑信道#1和逻辑信道#2，SL载波列表为{SL载波#1，SL载波#2，……SL 载波#8}。F 0域对应SL载波#1，F 1域对应SL载波#2，F 2域对应SL载波#3，F 3域对应SL载波#4，F 4域对应SL载波#5。由于所述n个SL载波中并不包括SL载波#6至SL载波#8，因此网络设备可以将F 5域至F 7域设置为默认值，终端设备忽略F 5域至F 7域。F i域取值为0和1中的一个，若0表示该F i域对应的SL载波#1与逻辑信道#1对应，1表示该F i域对应的SL载波与逻辑信道#2对应，那么，若F 0域至F 4域为11000，则逻辑信道#1与SL载波#3、SL载波#4和SL载波#5对应，逻辑信道#2与SL载波#1和SL载波#2对应。
应理解，图6仅是示例性说明，本申请并不限定各个域之间的相对位置，以及各个域所占用的比特位数量。比如，F 0域至F 7域也可以紧随第一域之后。比如，第一域也可以占用8个比特位。还应理解，图6所示的第一信息还可以包括图中未示出的其他内容。
上文中仅以网络设备配置第一SLRB对应的m个逻辑信道中的每个逻辑信道与SL载波的对应关系为例进行说明。在实践中，网络设备还可以通过第一信息配置第一DST ID对应的其他配置了重复功能的SLRB对应的逻辑信道与SL载波的对应关系。
在此情况下，在一个示例中，第一信息还可以包括与第二域以及第二域对应的v个F i域类似的域。下面以第一DST ID总共对应5个SLRB(即，第一SLRB至第五SLRB)，其中2个SLRB(即，第一SLRB和第二SLRB)配置了重复功能为例进行说明。
参见图7，图7示出了第一信息的可能的格式。如图7所示，第一信息除包括图6所示的信息外，还可以包括第二SLRB ID以及第二SLRB ID对应的v个F i域。第二SLRB ID也可以替换为第二SLRB ID对应的索引，第二SLRB ID对应的索引与第二SLRB在所述SLRB ID列表中的位置相关，具体可以参见上文对第一SLRB ID对应的索引的描述，这里不再说明。第二SLRB对应的v个F i域对应依次对应所述SL载波列表中的第1个至第v个SL载波，F i域指示其对应的SL载波与所述第二SLRB对应的逻辑信道中的哪个逻辑信道对应。第二SLRB对应的v个F i域的含义与第一SLRB对应的v个F i域的含义类似，具体可以参见上文对第一SLRB对应的v个F i域的说明，这里不再赘述。应理解，为了保持字节对齐，图7中可以设置相应的保留位R。
应理解，图7仅是示例性说明，本申请并不限定各个域之间的相对位置，以及各个域所占用的比特位数量。还应理解，图7所示的第一信息还可以包括图中未示出的其他内容。
可选地，在第一信息仅包括配置了重复功能的SLRB的相关信息的情况下，第一信息中指示SLRB的信息可以按照SLRB ID或SLRB ID对应的索引升序或者降序的顺序排序。比如，图7中，若第一SLRB ID小于第二SLRB ID，则第一SLRB ID可以紧随第一域之后；相反，则第二SLRB ID可以紧随第一域之后，即，图7中第一SLRB ID和第二SLRB ID位置互换。
在另一个示例中，第一信息的格式可以如图8所示。
参见图8，图8示出了第一信息的可能的另一种格式。如图8所示，第一信息可以包括第一域以及s个SLRB j域和r组v个F i域。1≤r≤s，且s和r均为整数，s为每个DST ID最多对应的SLRB数量或最多对应的具有重复功能的SLRB。图8中v＝8，j＝8，r＝2。
每个SLRB j域占用一个比特位，j的取值可以从0开始，也可以从1开始，或者还可以从其他任一整数开始。当j的取值从0开始时，j的取值为0至s-1，所述s个SLRB j域为SLRB 0域至SLRB s-1域，SLRB j域与SLRB ID列表中的第j+1个SLRB ID对应。当j的取值从1开始时，j的取值为1至s，所述s个SLRB j域为SLRB 1域至SLRB s域，SLRB j 域与SLRB ID列表中的第j个SLRB ID对应。j为其他取值时，SLRB j域与SLRB ID的对应关系类似。应理解，这里的SLRB ID列表包括第一DST ID对应的所有SLRB或所有配置了重复功能的SLRB。若一个SLRB ID列表中的SLRB ID的数量小于s，则网络设备将对应的SLRB j域设置为默认值，终端设备忽略该SLRB j域。另外，若网络设备为一个DST ID对应的DST配置的SLRB中不包括某个SLRB j域所对应的SLRB，则终端设备忽略该SLRB j域。
SLRB j域用于指示第一信息中是否存在与SLRB j域所指示的SLRB对应的一组v个F i域。比如，当SLRB j域为1时，表示第一信息中存在该SLRB j域所指示的SLRB对应的一组v个F i域，当SLRB j域为0时，表示第一信息中不存在该SLRB j域所指示的SLRB对应的一组v个F i域，或者0和1的含义也可以反过来。
r组v个F i域与s个SLRB j域中的r个SLRB j域一一对应，所述r个SLRB j域为s个SLRB j域中指示存在对应的一组v个F i域的r个SLRB j域。F i域的含义与上文中的F i域的含义相同。
同样以第一DST ID总共对应5个SLRB(即，第一SLRB至第五SLRB)，其中2个SLRB(即，第一SLRB和第二SLRB)配置了重复功能为例，对图8进行说明。
参见图8，SLRB 0域至SLRB 4域与第一SLRB至第五SLRB一一对应，SLRB 5域至SLRB 7域设置为默认值。假设SLRB 0域对应第一SLRB，SLRB 1域对应第二SLRB，……SLRB 4域对应第五SLRB，当SLRB j域为1时，表示第一信息中存在该SLRB j域所指示的SLRB对应的一组v个F i域，当SLRB j域为0时，表示第一信息中不存在该SLRB j域所指示的SLRB对应的一组v个F i域，那么，SLRB 0域和SLRB 1域为1，SLRB 2域至SLRB 4域为0。第一行F 0域至F 7域与SLRB 0对应，表示第一SLRB对应的逻辑信道与SL载波的对应关系；第二行F 0域至F 7域与SLRB 2对应，表示第二SLRB对应的逻辑信道与SL载波的对应关系。
应理解，为了保持字节对齐，图8中可以设置相应的保留位R。
应理解，图8仅是示例性说明，本申请并不限定各个域之间的相对位置，以及各个域所占用的比特位数量。还应理解，图8所示的第一信息还可以包括图中未示出的其他内容。
可以理解，网络设备除配置第一DST ID对应的一个或多个配置了重复功能的SLRB对应的逻辑信道与SL载波的对应关系以外，还可以通过第一信息配置其他一个或多个DST ID分别对应的配置了重复功能的SLRB对应的逻辑信道与SL载波的对应关系。结合图9进行说明。
参见图9，图9示出了第一信息的一种可能的格式。如图9所示，第一信息包括每个DST ID索引(即DST ID对应的索引)、每个DST ID对应的一个或多个SLRB ID，以及每个SLRB ID对应的8个F i域。图9中的DST ID索引也可以替换为DST ID，SLRB ID也可以替换为SLRB ID对应的索引。
应理解，图9中示出的DST ID数量为z，SLRB数量也为z，即图9中假设一个DST ID仅对应一个配置了重复功能的SLRB，但实际中一个DST ID可以对应一个或多个配置了重复功能的SLRB。
还应理解，在通过第一信息配置其多个DST ID分别对应的配置了重复功能的SLRB对应的逻辑信道与SL载波的对应关系时，第一信息的格式还可以是类似图8所示的格式， 即将图8所示的一个DST ID扩展到多个DST ID，与每个DST ID相关的内容都与图8所示类似，这里不再赘述。
上述中对第一信息的一种格式，即格式一进行了说明，下面对第一信息的另一种格式，即格式二进行说明。
格式二
第一信息包括第一域、m个第二域和每个第二域对应的v个F i域。
第一域包括指示第一DST ID的信息，其与格式一中的第一域相同，具体参见上述对第一域所作的说明。
m个第二域与所述m个逻辑信道一一对应。第二域包括其对应的LCID，或者其对应的LCID对应的索引。LCID对应的索引可以由网络设备指示，或者，LCID对应的索引与LCID在LCID列表中的位置相关。比如，若LCID列表中的LCID的索引从0开始，则某一个LCID对应的索引为该LCID在LCID列表中的位置减1，若LCID列表中的LCID的索引从1开始，则某一个LCID对应的索引为该LCID在LCID列表中的位置。举例来说，LCID列表为{LCID#1，LCID#2，LCID#3，……}，假设某个LCID为LCID#2，则该LCID在LCID列表中的位置为2。若LCID列表中的LCID的索引从1开始，即LCID#1对应的索引为1，则该LCID对应的索引为2；若LCID列表中的LCID的索引从0开始，即LCID#1对应的索引为0，则该LCID对应的索引为1。LCID列表由终端设备和网络设备共同维护，LCID列表可以包括当前配置的所有LCID，或者包括第一SLRB对应的所有LCID。在一个示例中，所述m个第二域按照所述m个逻辑信道对应的LCID由小至大或者由大至小，或者按照所述m个逻辑信道对应的LCID对应的索引由小至大或者由大至小，与所述m个逻辑信道一一对应。
所述v个F i域中的每个F i域占用至少一个比特位，i为整数，v为终端设备最多能够支持的SL载波数量，v≥n，且v为整数。i的取值可以从0开始，也可以从1开始，或者还可以从其他任一整数开始。当i的取值从0开始时，i的取值为0至v-1，所述v个F i域为F 0域至F v-1域，F i域对应SL载波列表中的第i+1个SL载波；当i的取值从1开始时，i的取值为1至v，所述v个F i域为F 1域至F v域，F i域对应SL载波列表中的第i个SL载波。i为其他取值时，F i域与SL载波的对应关系类似。F i域指示其对应的SL载波与该F i域对应的第二域所对应的逻辑信道对应。例如，F i域为0时，表示F i域所对应的SL载波与第二域所指示的逻辑信道对应，F i域为1时，表示F i域所对应的SL载波与第二域所指示的逻辑信道不对应，或者0和1的含义也可以反过来。应理解，所述v个F i域所对应的v个SL载波包括所述n个SL载波。若n＜v，例如v＝8，n＝7，若i的取值从0开始，这意味着F 7域并不对应所述n个SL载波中的任一载波，即F 7域没有对应的SL载波，在此情况下，F域可以设置为默认值，终端设备默认会无视F 7域的取值。对于其他没有对应SL载波的F i域也进行相同的处理。
所述SL载波列表由终端设备和网络设备共同维护，其可以包括当前所有SL载波，或者，可以仅包括第一DST ID对应的所有SL载波，或者，可以仅包括第一SLRB对应的所有SL载波。示例性的，所述n个SL载波可以是当前生效的所有SL载波，或者是第一DST ID对应的所有SL载波，或者可以是第一SLRB对应的所有SL载波。
应理解，所述“F i域”仅是一个名称，其可以替换为其他的名称，如“A i域”、“LC i域” 等，名称并不应对本申请构成任何限定。
需要说明的是，本申请中以LCID表示逻辑信道为例进行说明，实际中，也可以采用其他的信息表示逻辑信道，比如可以采用终端设备为逻辑信道分配的索引表示逻辑信道，相应地，LCID列表则替换为逻辑信道索引列表。
参见图10，图10示出了第一信息为格式二时的一个示例。图10中，第一DST ID索引，即第一DST ID对应的索引即为上述的第一域，如上文所述，第一DST ID索引也可以替换为第一DST ID。LCID#1至LCID#m为所述m个第二域。每个第二域对应8个F i域，即每个第二域对应一组F 0域至F 7域。应理解，这里仅以v＝8为例，本申请并不限定v的取值。
举例来说，假设所述n个SL载波为SL载波#1至SL载波#5，第一SLRB对应2个逻辑信道，m＝2，这2个逻辑信道为逻辑信道#1(对应LCID#1)和逻辑信道#2(对应LCID#2)，SL载波列表为{SL载波#1，SL载波#2，……SL载波#8}。F 0域对应SL载波#1，F 1域对应SL载波#2，F 2域对应SL载波#3，F 3域对应SL载波#4，F 4域对应SL载波#5。由于所述n个SL载波中并不包括SL载波#6至SL载波#8，因此网络设备可以将F 5域至F 7域设置为默认值，终端设备忽略F 5域至F 7域。F i域取值为0和1中的一个，若1表示该F i域对应的SL载波与该F i域所对应的逻辑信道对应，0表示该F i域对应的SL载波不与该F i域所对应的逻辑信道对应。那么，若LCID#1对应的F 0域至F 4域为11000，则逻辑信道#1与SL载波#1和SL载波#2对应。若LCID#2对应的F 0域至F 4域为00011，则逻辑信道#1与SL载波#4和SL载波#5对应。
应理解，图10仅是示例性说明，本申请并不限定各个域之间的相对位置，以及各个域所占用的比特位数量。还应理解，图10所示的第一信息还可以包括图中未示出的其他内容。
可以理解，第一信息除用于指示所述m个逻辑信道中的每个逻辑信道与SL载波的对应关系之外，还可以用于指示第一SLRB对应的其他逻辑信道与SL载波的对应关系。进一步地，第一信息还可以指示第一DST ID对应的其他SLRB对应的一个或多个逻辑信道与SL载波的对应关系。在一个示例中，具体如何指示，可以参考上述所示的格式二或者参考图10。在另一个示例中，此时第一信息的格式可以如图11所示。
参见图11，图11示出了第一信息的一种可能的格式。如图11所示，第一信息可以包括第一域以及s个LCID j域和r组v个F i域。1≤r≤s，且s和r均为整数，s为每个DST ID最多对应的逻辑信道的数量。图11中v＝8，j＝8，r＝2。
每个LCID j域占用一个比特位，j的取值可以从0开始，也可以从1开始，或者还可以从其他任一整数开始。当j的取值从0开始时，j的取值为0至s-1，所述s个LCID j域为LCID 0域至LCID s-1域，LCID j域与LCID列表中的第j+1个LCID对应。当j的取值从1开始时，j的取值为1至s，所述s个LCID j域为LCID 1域至LCID s域，LCID j域与LCID列表中的第j个LCID对应。j为其他取值时，LCID j域与LCID的对应关系类似。应理解，这里的LCID列表包括第一DST ID对应的所有LCID。若一个LCID列表中的LCID的数量小于s，则网络设备将对应的LCID j域设置为默认值，终端设备忽略该LCID j域。另外，若网络设备为一个DST ID对应的DST配置的LCID中不包括某个LCID j域所对应的LCID，则终端设备忽略该LCID j域。
LCID j域用于指示第一信息中是否存在与LCID j域所指示的逻辑信道对应的一组v个F i域。比如，当LCID j域为1时，表示第一信息中存在该LCID j域所指示的逻辑信道对应的一组v个F i域，当LCID j域为0时，表示第一信息中不存在该LCID j域所指示的逻辑信道对应的一组v个F i域，或者0和1的含义也可以反过来。
r组v个F i域与s个LCID j域中的r个LCID j域一一对应，所述r个LCID j域为s个LCID j域中指示存在对应的一组v个F i域的r个LCID j域。F i域的含义与格式二或图10中的F i域的含义相同。
同样以第一DST ID总共对应5个逻辑信道(即，第一逻辑信道至第五逻辑信道)，其中2个逻辑信道(即，第一逻辑信道和第二逻辑信道)对应的SLRB配置了重复功能为例，对图11进行说明。
参见图11，LCID 0域至LCID 4域与第一逻辑信道至第五逻辑信道一一对应，LCID 5域至LCID 7域设置为默认值。假设LCID 0域对应第一逻辑信道，LCID 1域对应第二逻辑信道，……LCID 4域对应第五逻辑信道，当LCID j域为1时，表示第一信息中存在该LCID j域所指示的逻辑信道对应的一组v个F i域，当LCID j域为0时，表示第一信息中不存在该LCID j域所指示的逻辑信道对应的一组v个F i域，那么，LCID 0域和LCID 1域为1，LCID 2域至LCID 4域为0。第一行F 0域至F 7域与LCID 0对应，表示第一逻辑信道与SL载波的对应关系；第二行F 0域至F 7域与LCID 2对应，表示第二逻辑信道与SL载波的对应关系。
应理解，为了保持字节对齐，图11中可以设置相应的保留位R。
应理解，图11仅是示例性说明，本申请并不限定各个域之间的相对位置，以及各个域所占用的比特位数量。还应理解，图11所示的第一信息还可以包括图中未示出的其他内容。
此外，第一信息还可以指示除第一DST ID之外的其他DST ID对应的一个或多个SLRB对应的一个或多个逻辑信道与SL载波的对应关系。具体如何指示，均可以参考上述所示的格式二或者参考图10或图11，本文中不再赘述。
上文中结合图5至图11描述了网络设备配置逻辑信道与SL载波的对关系的方案。下面对本申请提供的另一种用于激活或去激活SLRB的方案进行说明。
图12是本申请提供的另一通信方法的示意性流程图。下面对图12所示的方法400中的各步骤进行说明。
S410，网络设备向终端设备发送SLRB配置信息。
示例性的，SLRB配置信息可以通过RRC信令(或称，RRC消息)或者广播消息携带，本申请不作限定。
SLRB配置信息可以配置p个SLRB，并且指示所述p个SLRB与第一DST ID对应。其中，p个SLRB均配置了重复功能。SLRB配置了重复功能的含义可以参照上述描述。所述p个SLRB可以是第一DST ID对应的所有SLRB中所有配置了重复功能的SLRB，但本申请对此不作限定。
S420，网络设备向终端设备发送第一信息。
其中，第一信息用于指示第一DST ID。第一指示信息还指示所述p个SLRB中激活重复功能的SLRB和/或去激活重复功能的SLRB。也就是说，第一信息可以指示所述p个SLRB中哪些SLRB的重复功能需要激活，或者，第一信息可以指示所述p个SLRB中哪 些SLRB的重复功能需要去激活，或者第一指示信息可以同时指示所述p个SLRB中哪些SLRB的重复功能需要激活，以及哪些SLRB的重复功能需要去激活。
可选地，第一信息可以是MAC CE，但本申请对此不作限定。
根据本申请提供的方法，网络设备可以根据实际需求，灵活激活/去激活SLRB的重复功能，从而有利于提高系统性能。
下面对第一信息的可能的格式进行举例说明。
格式一
第一信息可以包括第一域和p个B i域。
其中，第一域为包括指示第一DST ID的信息。这里的第一域与方法200和300中的第一域相同，不再赘述。
每个B i域占用一个比特位，i为整数。i的取值可以从0开始，也可以从1开始，或者还可以从其他任一整数开始。当i的取值从0开始时，i的取值为0至p-1，所述p个B i域为B 0域B p-1域，B i域对应SLRB ID列表中的第i+1个SLRB ID所指示的SLRB。当i的取值从1开始时，i的取值为1至p，所述p个B i域为B 1域至B p域，B i域对应SLRB ID列表中的第i个SLRB ID所指示的SLRB。i为其他取值时，B i域与SLRB ID的对应关系类似。SLRB ID列表包括所述p个SLRB ID，SLRB ID列表由网络设备和终端设备共同维护。
在一个示例中，B i域指示其对应的SLRB(即，B i域对应的SLRB ID所指示的SLRB)的重复功能是否处于激活状态，即B i域指示是否激活其对应的SLRB的重复功能。例如，当B i域为0时，表示激活该B i域所对应的SLRB的重复功能，或者，当B i域为1时，表示激活该B i域所对应的SLRB的重复功能。
在另一示例中，B i域指示其对应的SLRB的重复功能是否处于去激活状态，即B i域指示是否去激活其对应的SLRB的重复功能。例如，当B i域为0时，表示去激活该B i域所对应的SLRB的重复功能，或者，当B i域为1时，表示去激活该B i域所对应的SLRB的重复功能。
在又一示例中，B i域指示其对应的SLRB的重复功能处于激活状态还是去激活状态，即，B i域指示激活还是去激活其对应的SLRB的重复功能。比如，B i域为0时，表示激活B i域对应的SLRB的重复功能需，B i域为1时，表示去激活B i域对应的SLRB的重复功能，或者0和1的含义也可以反过来。
参见图13，图13示出了第一信息为格式一时的一个示例。图13中，第一DST ID索引，即第一DST ID对应的索引即为上述的第一域。B 0域至B 4域对应上述的p个B i域。应理解，这里仅以p＝5为例，本申请并不限定p的取值。应理解，为保持字节对齐，第一信息还可以包括保留位R。
举例来说，所述p个SLRB为SLRB#1至SLRB#5，B 0域至B 4域依次对应SLRB#1至SLRB#5。假设B 0域至B 5域为10100。若B i域为1时，表示激活B i域对应的SLRB的重复功能需，B i域为0时，表示去激活B i域对应的SLRB的重复功能，那么，B 0域至B 5域表示激活SLRB#1和SLRB#3的重复功能，去激活其他的SLRB的重复功能。若B i域为1时，表示激活B i域对应的SLRB的重复功能需，B i域为0时，表示不激活B i域对应的SLRB的重复功能，那么，B 0域至B 5域表示激活SLRB#1和SLRB#3的重复功能。若 B i域为1时，表示去激活B i域对应的SLRB的重复功能需，B i域为0时，表示不去激活B i域对应的SLRB的重复功能，那么，B 0域至B 5域表示去激活SLRB#1和SLRB#3的重复功能。
应理解，图13仅是示例性说明，本申请并不限定各个域之间的相对位置，以及各个域所占用的比特位数量。比如，第一域、B 0域至B 4域以及保留位的相对位置还可以如图14或图15所示。还应理解，图13所示的第一信息还可以包括图中未示出的其他内容。
还应理解，本文中“B i域”仅是一个名称，其可以替换为其他名称，本申请对此不作限定。
上文中仅以网络设备配置第一DST ID对应的p个SLRB中激活重复功能的SLRB和/或去激活重复功能的SLRB为例进行说明。在实践中，网络设备还可以通过第一信息配置除第一DST ID之外的其他一个或多个DST ID分别对应的配置了重复功能的SLRB中激活重复功能的SLRB和/或去激活重复功能的SLRB。结合图16进行说明。
参见图16，图16示出了第一信息的一种可能的格式。如图16所示，第一信息包括每个DST ID索引(即DST ID对应的索引)以及每个DST ID对应的5个B i域。图16中示出的DST ID数量为z。
应理解，图中的DST ID索引也可以替换为DST ID。另外，每个DST ID对应的5个B i域所指示的5个SLRB为该DST ID所对应的SLRB中配置了重复功能的5个SLRB。实际中，每个DST ID对应的配置了重复功能的SLRB的数量可以不同，这里仅以每个DST ID对应的配置了重复功能的SLRB的数量为5为例进行说明。
还应理解，也可以通过扩展图14或图15所示的格式，指示DST ID分别对应的配置了重复功能的SLRB中激活重复功能的SLRB和/或去激活重复功能的SLRB。
格式二
第一信息可以包括第一域和v个B i域，v为每个DST ID对应的DST(或业务)最多能够配置的SLRB数量，v≥p，且v为整数。
其中，第一域为指示第一DST ID的信息。这里的第一域与方法200和300中的第一域相同，不再赘述。
每个B i域占用一个比特位，i为整数。i的取值可以从0开始，也可以从1开始，或者还可以从其他任一整数开始。当i的取值从0开始时，i的取值为0至v-1，所述v个B i域为B 0域B v-1域，B i域对应SLRB ID列表中的第i+1个SLRB ID所指示的SLRB。当i的取值从1开始时，i的取值为1至v，所述v个B i域为B 1域至B v域，B i域对应SLRB ID列表中的第i个SLRB ID所指示的SLRB。i为其他取值时，B i域与SLRB ID的对应关系类似。SLRB ID列表由网络设备和终端设备共同维护，SLRB ID列表可以包括第一DST ID对应的所有SLRB ID，或者SLRB ID列表可以包括当前所有SLRB(即，所有DST ID对应的SLRB ID)。应理解，所述v个B i域所对应的v个SLRB包括所述p个SLRB。SLRB ID列表中的SLRB ID的数量小于或者等于v，若SLRB ID列表中的SLRB ID的数量小于v，则网络设备将对应的F i域设置为默认值，终端设备忽略该F i域。另外，若网络设备为所述第一DST ID对应的DST配置的SLRB中不包括某个B i域所对应的SLRB，则终端设备忽略该B i域；和/或，若某个B i域对应的SLRB没有配置重复功能，则终端设备忽略该B i域。
在一个示例中，B i域指示其对应的SLRB的重复功能是否处于激活状态，即B i域指示是否激活其对应的SLRB的重复功能。例如，当B i域为0时，表示激活该B i域所对应的SLRB的重复功能，或者，当B i域为1时，表示激活该B i域所对应的SLRB的重复功能。
在另一示例中，B i域指示其对应的SLRB的重复功能是否处于去激活状态，即B i域指示是否去激活其对应的SLRB的重复功能。例如，当B i域为0时，表示去激活该B i域所对应的SLRB的重复功能，或者，当B i域为1时，表示去激活该B i域所对应的SLRB的重复功能。
在又一示例中，B i域指示其对应的SLRB的重复功能处于激活状态还是去激活状态，即，B i域指示激活还是去激活其对应的SLRB的重复功能。比如，B i域为0时，表示激活B i域对应的SLRB的重复功能需，B i域为1时，表示去激活B i域对应的SLRB的重复功能，或者0和1的含义也可以反过来。
应理解，与格式一不同的是，格式一中与第一DST ID对应的B i域为p个，p为第一DST ID对应的配置了重复功能的SLRB的数量。格式二中与第一DST ID对应的B i域为v个，p为网络设备为一个DST ID最多能够配置的SLRB的数量。
参见图17，图17示出了第一信息为格式一时的一个示例。图17中，第一DST ID索引，即第一DST ID对应的索引即为上述的第一域。B 0域至B 7域对应上述的p个B i域。应理解，这里仅以p＝8为例，本申请并不限定p的取值。应理解，为保持字节对齐，第一信息还可以包括保留位R。
举例来说，所述p个SLRB为SLRB#1至SLRB#8，B 0域至B 7域依次对应SLRB#1至SLRB#8。假设B i域为1时，表示激活B i域对应的SLRB的重复功能，B i域为0时，表示去激活B i域对应的SLRB的重复功能。那么，若B 0域至B 7域为10100001，则表示激活SLRB#1、SLRB#3和SLRB#8，去激活其他的SLRB。
应理解，图17仅是示例性说明，本申请并不限定各个域之间的相对位置，以及各个域所占用的比特位数量。比如，第一域、B 0域至B 7域以及保留位的相对位置还可以如图18或图19所示。还应理解，图17所示的第一信息还可以包括图中未示出的其他内容。
还应理解，本文中“F i域”仅是一个名称，其可以替换为其他名称，本申请对此不作限定。
上文中仅以网络设备配置第一DST ID对应的p个SLRB中激活重复功能的SLRB和/或去激活重复功能的SLRB为例进行说明。在实践中，网络设备还可以通过第一信息配置除第一DST ID之外的其他一个或多个DST ID分别对应的配置了重复功能的SLRB中激活重复功能的SLRB和/或去激活重复功能的SLRB。结合图20进行说明。
参见图20，图20示出了第一信息的一种可能的格式。如图20所示，第一信息包括每个DST ID索引(即DST ID对应的索引)以及每个DST ID对应的8个B i域。图20中示出的DST ID数量为z。
应理解，图中的DST ID索引也可以替换为DST ID。网络设备为一个DST ID最多能够配置的SLRB的数量也可以不是8，这里仅以网络设备为一个DST ID最多能够配置的SLRB的数量为8为例进行说明。
还应理解，也可以通过扩展图18或图19所示的格式，指示DST ID分别对应的配置 了重复功能的SLRB中激活重复功能的SLRB和/或去激活重复功能的SLRB。
格式三
第一信息包括s个DST j域和r组v个B i域，2≤r≤s，且s和r均为整数，s为终端设备最多能够支持的DST ID的数量或者为网络设备为所述终端设备配置的DST ID的数量。应理解，一组包括v个B i域。
每个DST j域占用一个比特位，j为整数。j的取值可以从0开始，也可以从1开始，或者还可以从其他任一整数开始。当j的取值从0开始时，j的取值为0至s-1，所述s个DST j域为DST 0域至DST s-1域，DST j域与DST ID列表中的第j+1个DST ID对应。当j的取值从1开始时，j的取值为1至s，所述s个DST j域为DST 1域至DST s域，DST j域与DST ID列表中的第j个DST ID对应。j为其他取值时，DST j域与DST ID的对应关系类似。DST j域用于指示第一信息中是否存在与DST j域所指示的DST ID对应的一组v个B i域，所述s个DST j域所对应的DST ID中包括第一目的标识。
所述r组v个B i域与所述s个DST j域中的r个DST j域一一对应，所述r个DST j域为s个DST j域中指示存在对应的一组v个B i域的r个DST j域。
每个B i域占用一个比特位，i为整数。i的取值可以从0开始，也可以从1开始，或者还可以从其他任一整数开始。当i的取值从0开始时，i的取值为0至v-1，所述v个B i域为B 0域B v-1域，B i域对应该B i域对应的DST j域所对应的SLRB ID列表中的第i+1个SLRB ID所指示的SLRB。当i的取值从1开始时，i的取值为1至v，所述v个B i域为B 1域至B v域，B i域对应该B i域对应的DST j域所对应的SLRB ID列表中的第i个SLRB ID所指示的SLRB。i为其他取值时，B i域与SLRB ID的对应关系类似。v可以是一个DST ID最多能够对应的SLRB的数量，也可以是一个DST ID最多能够配置重复功能的SLRB的数量，本申请对此不作限定。
SLRB ID列表由网络设备和终端设备共同维护，某个DST ID所对应的SLRB ID列表可以包括该DST ID对应的所有SLRB ID。应理解，与所述第一DST ID对应的v个B i域所对应的v个SLRB包括所述p个SLRB。若一个SLRB ID列表中的SLRB ID的数量小于v，则网络设备将对应的B i域设置为默认值，终端设备忽略该F i域。另外，若网络设备为一个DST ID对应的DST配置的SLRB中不包括某个B i域所对应的SLRB，则终端设备忽略该B i域；和/或，若某个B i域对应的SLRB没有配置重复功能，则终端设备忽略该B i域。
若所述B i域对应的SLRB配置有重复功能，在一个示例中，所述B i域指示其对应的SLRB的重复功能是否处于激活状态；在另一示例中，所述B i域指示其对应的SLRB的重复功能是否处于去激活状态；在又一示例中，所述B i域指示其对应的SLRB的重复功能是处于激活状态还是去激活状态。
以B i域指示其对应的SLRB的重复功能是处于激活状态还是去激活状态，结合图21所示的格式进行举例说明。图21中，假设s＝16，v＝8。DST 0域对应DST ID列表中的第1个DST ID，类似地，DST 1域对应DST ID列表中的第2个DST ID，其他类似不再赘述。若DST 0域为1，则表示存在对应的v个B i域，即B 0域至B 7域，若DST 0域为0，则表示不存在对应的v个B i域，或者0和1的含义反过来也可以。B 0域至B 7域表示8个SLRB，B i域为0时表示激活该B i域所对应的SLRB，B i域为1时表示去激活该B i域所对应的SLRB， 或者，0和1的含义也可以反过来。
举例来说，若DST 0域为1，则表示存在对应的v个B i域。假设DST 1域对应第一DST ID，且DST 1域为1，若DST 0域也为1，则图21中的第二行B 0域至B 7域与DST 1域对应。若所述p个SLRB为SLRB#1至SLRB#4，第一DST ID对应的SLRB ID列表为{SLRB ID#1，SLRB ID#2，SLRB ID#3，SLRB ID#4}，并假设B i域为1时表示激活该B i域所对应的SLRB，B i域为0时表示去激活该B i域所对应的SLRB，则若第二行B 0域至B 3域为1001，表示激活SLRB ID#1和SLRB ID#4所指示的SLRB，去激活SLRB ID#2和SLRB ID#3所指示的SLRB。其中，第二行B 4域至B 7域设置为默认值。
可选地，在一种方式中，若只有小于或者等于n个DST ID对应的SLRB的重复功能需要激活和/或去激活，第一信息可以采用格式一或格式二。
可选地，在另一种方式中，若有大于n个DST ID对应的SLRB的重复功能需要激活和/或去激活，第一信息可以采用格式三。
示例性的，n≥1，且n为整数。n可以由协议规定，比如n＝2，但本申请对此不作限定。
应理解，图6至图11以及图13至21中任一附图中所示的“Oct x”表示第x个字节，比如，“Oct 1”表示第1个字节。另外，任何对图6至图11以及图13至21中任一附图的等同的变形，都应落入本申请保护氛围内。
应理解，本申请实施例的各个方案可以进行合理的组合使用，并且实施例中出现的各个术语的解释或说明可以在各个实施例中互相参考或解释，对此不作限定。
还应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定。上述各个过程涉及的各种数字编号或序号仅为描述方便进行的区分，而不应对本申请实施例的实施过程构成任何限定。
以上，结合图2至图21详细说明了本申请实施例提供的方法。以下，结合图22至图24详细说明本申请实施例提供的装置。
图22是本申请实施例提供的通信装置的示意性框图。如图22所示，该通信装置1000可以包括收发单元1100和处理单元1200。
其中，收发单元1100可以用于接收其他装置发送的信息，还可以用于向其他装置发送信息。比如，发送SL载波配置信息或接收SL载波配置信息。处理单元1200可以用于进行装置的部分处理，比如为逻辑信道选择对应的SL载波等。
在一种可能的设计中，该通信装置1000可对应于上述方法实施例中的终端设备。
具体地，该通信装置1000可对应于上述方法200至400中任一方法中的终端设备，该通信装置1000可以包括用于执行相应方法中由终端设备所执行的操作的单元，并且，该通信装置1000中的各单元分别为了实现相应方法中由终端设备所执行的操作。
示例性的，在该通信装置1000对应于方法200中的终端设备时，收发单元1100用于，接收网络设备发送的侧链SL载波配置信息，所述SL载波配置信息包括n个SL载波的信息，n≥2，且n为整数；处理单元1200用于，从所述n个SL载波中，为第一侧链无线承载SLRB对应的m个逻辑信道中的每个逻辑信道选择对应的SL载波，m≥1，且m为整数；其中，所述第一SLRB配置了重复功能，所述第一SLRB为所述通信装置1000与其他终端设备之间的无线承载。
示例性的，在该通信装置1000对应于方法300中的终端设备时，所述收发单元1100用于，接收网络设备发送的侧链SL载波配置信息和侧链无线承载SLRB配置信息，其中，所述SL载波配置信息用于配置n个SL载波，所述SLRB配置信息用于配置第一SLRB，并且所述SLRB配置信息用于指示所述第一SLRB与第一目的标识对应，所述第一SLRB配置了重复功能，所述第一SLRB为所述通信装置1000与其他终端设备之间的无线承载，n≥2，且n为整数；接收所述网络设备发送的第一信息，所述第一信息用于指示所述第一目的标识，以及指示所述第一SLRB对应的m个逻辑信道中的每个逻辑信道与SL载波的对应关系，m≥1，且m为整数。
示例性的，在该通信装置1000对应于方法400中的终端设备时，收发单元1100用于，接收网络设备发送的侧链无线承载SLRB配置信息，所述SLRB配置信息用于配置p个SLRB以及用于指示所述p个SLRB与第一目的标识对应，所述p个SLRB配置了重复功能，p≥1，且p为整数；接收所述网络设备发送的第一信息，所述第一信息用于指示所述第一目的标识以及所述p个SLRB中激活重复功能的SLRB，和/或，去激活重复功能的SLRB。
在另一种可能的设计中，该通信装置1000可对应于上述方法实施例中的网络设备，例如可以为网络设备或者配置于网络设备中的芯片。
具体地，该通信装置1000可对应于方法200至400中任一方法中的网络设备，该通信装置1000可以包括用于执行相应方法中由网络设备所执行的操作的单元，并且，该通信装置1000中的各单元分别为了实现相应方法中由网络设备所执行的操作。
示例性的，在该通信装置1000对应于方法200中的网络设备时，收发单元1100用于，发送侧链SL载波配置信息，所述SL载波配置信息包括n个SL载波的信息，n≥2，且n为整数；接收终端设备发送的第一指示信息，所述第一指示信息用于指示第一侧链无线承载SLRB对应的m个逻辑信道中的每个逻辑信道与SL载波的对应关系，m≥1，且m为整数，其中，所述第一SLRB配置了重复功能，所述第一SLRB为所述终端设备与其他终端设备之间的无线承载。
示例性的，在该通信装置1000对应于方法300中的网络设备时，收发单元1100用于，向终端设备发送侧链SL载波配置信息和侧链无线承载SLRB配置信息，其中，所述SL载波配置信息用于配置n个SL载波，所述SLRB配置信息用于配置第一SLRB，并且所述SLRB配置信息用于指示所述第一SLRB与第一目的标识对应，所述第一SLRB配置了重复功能，所述第一SLRB为所述终端设备与其他终端设备之间的无线承载n≥2，且n为整数；向所述终端设备发送第一信息，所述第一信息用于指示所述第一目的标识，以及指示所述第一SLRB对应的m个逻辑信道中的每个逻辑信道与SL载波的对应关系，m≥1，且m为整数。
示例性的，在该通信装置1000对应于方法400中的网络设备时，收发单元1100用于，向终端设备发送侧链承载SLRB配置信息，所述SLRB配置信息用于配置p个SLRB以及用于指示所述p个SLRB与第一目的标识对应，所述p个SLRB配置了重复功能，p≥1，且p为整数；向所述终端设备发送第一信息，所述第一信息用于指示所述第一目的标识以及所述p个SLRB中激活重复功能的SLRB和/或去激活重复功能的SLRB。
应理解，各单元执行上述相应步骤的具体过程在上述方法实施例中已经详细说明，为 了简洁，在此不再赘述。
还应理解，该通信装置1000为终端设备时，该通信装置1000中的收发单元1100可对应于图23中示出的终端设备2000中的收发器2020，该通信装置1000中的处理单元1200可对应于图23中示出的终端设备2000中的处理器2010。
还应理解，该通信装置1000为配置于终端设备中的芯片时，该通信装置1000中的收发单元1200可以为输入/输出接口。
还应理解，该通信装置1000为网络设备时，该通信装置1000中的收发单元1100可对应于图24中示出的网络设备3000中的收发器3200，该通信装置1000中的处理单元1200可对应于图24中示出的网络设备3000中的处理器3100。
还应理解，该通信装置1000为配置于网络设备中的芯片时，该通信装置1000中的收发单元1100可以为输入/输出接口。
图23是本申请实施例提供的终端设备2000的结构示意图。该终端设备2000可应用于如图1所示的系统中，执行上述方法实施例中终端设备的功能。如图23所示，该终端设备2000包括处理器2010和收发器2020。可选地，该终端设备2000还包括存储器2030。其中，处理器2010、收发器2002和存储器2030之间可以通过内部连接通路互相通信，传递控制或数据信号，该存储器2030用于存储计算机程序，该处理器2010用于从该存储器2030中调用并运行该计算机程序，以控制该收发器2020收发信号。可选地，终端设备2000还可以包括天线2040，用于将收发器2020输出的上行数据或上行控制信令通过无线信号发送出去。
上述处理器2010可以和存储器2030可以合成一个处理装置，处理器2010用于执行存储器2030中存储的程序代码来实现上述功能。具体实现时，该存储器2030也可以集成在处理器2010中，或者独立于处理器2010。该处理器2010可以与图22中的处理单元对应。
上述收发器2020可以与图22中的通信单元对应，也可以称为收发单元。收发器2020可以包括接收器(或称接收机、接收电路)和发射器(或称发射机、发射电路)。其中，接收器用于接收信号，发射器用于发射信号。
应理解，图23所示的终端设备2000能够实现方法200至400中任一方法中涉及终端设备的各个过程。终端设备2000中的各个模块的操作或功能，分别为了实现上述方法实施例中的相应流程。具体可参见上述方法实施例中的描述，为避免重复，此处适当省略详细描述。
上述处理器2010可以用于执行前面方法实施例中描述的由终端设备内部实现的动作，而收发器2020可以用于执行前面方法实施例中描述的终端设备向网络设备发送或从网络设备接收的动作。具体请见前面方法实施例中的描述，此处不再赘述。
可选地，上述终端设备2000还可以包括电源2050，用于给终端设备中的各种器件或电路提供电源。
除此之外，为了使得终端设备的功能更加完善，该终端设备2000还可以包括输入单元2060、显示单元2070、音频电路2080、摄像头2090和传感器2100等中的一个或多个，所述音频电路还可以包括扬声器2082、麦克风2084等。
图24是本申请实施例提供的网络设备的结构示意图，例如可以为基站的结构示意图。 该基站3000可应用于如图1所示的系统中，执行上述方法实施例中网络设备的功能。如图所示，该基站3000可以包括一个或多个射频单元，如远端射频单元(remote radio unit，RRU)3100和一个或多个基带单元(BBU)(也可称为分布式单元(DU))3200。所述RRU 3100可以称为收发单元或通信单元，与图22中的收发单元1100对应。可选地，该收发单元3100还可以称为收发机、收发电路、或者收发器等等，其可以包括至少一个天线3101和射频单元3102。可选地，收发单元3100可以包括接收单元和发送单元，接收单元可以对应于接收器(或称接收机、接收电路)，发送单元可以对应于发射器(或称发射机、发射电路)。所述RRU 3100部分主要用于射频信号的收发以及射频信号与基带信号的转换。所述BBU 3200部分主要用于进行基带处理，对基站进行控制等。所述RRU 3100与BBU 3200可以是物理上设置在一起，也可以物理上分离设置的，即分布式基站。
所述BBU 3200为基站的控制中心，也可以称为处理单元，可以与图22中的处理单元1200对应，主要用于完成基带处理功能，如信道编码，复用，调制，扩频等等。例如所述BBU(处理单元)可以用于控制基站执行上述方法实施例中关于网络设备的操作流程。
在一个示例中，所述BBU 3200可以由一个或多个单板构成，多个单板可以共同支持单一接入制式的无线接入网(如LTE网)，也可以分别支持不同接入制式的无线接入网(如LTE网，5G网或其他网)。所述BBU 3200还包括存储器3201和处理器3202。所述存储器3201用以存储必要的指令和数据。所述处理器3202用于控制基站进行必要的动作，例如用于控制基站执行上述方法实施例中关于网络设备的操作流程。所述存储器3201和处理器3202可以服务于一个或多个单板。也就是说，可以每个单板上单独设置存储器和处理器。也可以是多个单板共用相同的存储器和处理器。此外每个单板上还可以设置有必要的电路。
应理解，图24所示的基站3000能够实现前述方法实施例中涉及网络设备的各个过程。基站3000中的各个模块的操作或功能，分别为了实现上述方法实施例中的相应流程。具体可参见上述方法实施例中的描述，为避免重复，此处适当省略详细描述。
上述BBU 3200可以用于执行前面方法实施例中描述的由网络设备内部实现的动作，而RRU 3100可以用于执行前面方法实施例中描述的网络设备向终端设备发送或从终端设备接收的动作。具体请见前面方法实施例中的描述，此处不再赘述。
根据本申请实施例提供的方法，本申请还提供一种计算机程序产品，该计算机程序产品包括：计算机程序代码，当该计算机程序代码在计算机上运行时，使得该计算机执行前述任一方法实施例中终端设备侧的方法。
根据本申请实施例提供的方法，本申请还提供一种计算机可读介质，该计算机可读介质存储有程序代码，当该程序代码在计算机上运行时，使得该计算机执行前述方法实施例中网络设备侧的方法。
根据本申请实施例提供的方法，本申请还提供一种系统，其包括前述的一个或多个终端设备以及前述的一个或多个网络设备。
本申请实施例还提供了一种处理装置，包括处理器和接口；所述处理器用于执行上述任一方法实施例中的通信的方法。
应理解，上述处理装置可以是一个芯片。例如，该处理装置可以是现场可编程门阵列 (field programmable gate array，FPGA)，可以是通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件，还可以是系统芯片(system on chip，SoC)，还可以是中央处理器(central processor unit，CPU)，还可以是网络处理器(network processor，NP)，还可以是数字信号处理电路(digital signal processor，DSP)，还可以是微控制器(micro controller unit，MCU)，还可以是可编程控制器(programmable logic device，PLD)或其他集成芯片。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。应注意，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，高密度数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，固态硬盘(solid state disc，SSD))等。
上述各个装置实施例中网络设备与终端设备和方法实施例中的网络设备或终端设备 完全对应，由相应的模块或单元执行相应的步骤，例如通信单元(收发器)执行方法实施例中接收或发送的步骤，除发送、接收外的其它步骤可以由处理单元(处理器)执行。具体单元的功能可以参考相应的方法实施例。其中，处理器可以为一个或多个。
在本说明书中使用的术语“部件”、“模块”、“系统”等用于表示计算机相关的实体、硬件、固件、硬件和软件的组合、软件、或执行中的软件。例如，部件可以是但不限于，在处理器上运行的进程、处理器、对象、可执行文件、执行线程、程序或计算机。通过图示，在计算设备上运行的应用和计算设备都可以是部件。一个或多个部件可驻留在进程或执行线程中，部件可位于一个计算机上或分布在2个或更多个计算机之间。此外，这些部件可从在上面存储有各种数据结构的各种计算机可读介质执行。部件可例如根据具有一个或多个数据分组(例如来自与本地系统、分布式系统或网络间的另一部件交互的二个部件的数据，例如通过信号与其它系统交互的互联网)的信号通过本地或远程进程来通信。
应理解，说明书通篇中提到的“实施例”意味着与实施例有关的特定特征、结构或特性包括在本申请的至少一个实施例中。因此，在整个说明书各个实施例未必一定指相同的实施例。此外，这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。
应理解，在本申请实施例中，编号“第一”、“第二”…仅仅为了区分不同的对象，比如为了区分不同的网络设备，并不对本申请实施例的范围构成限制，本申请实施例并不限于此。
还应理解，在本申请中，“当…时”、“若”以及“如果”均指在某种客观情况下网元会做出相应的处理，并非是限定时间，且也不要求网元实现时一定要有判断的动作，也不意味着存在其它限定。
还应理解，在本申请中，“至少一个”是指一个或者多个，“多个”是指两个或两个以上。
还应理解，在本申请各实施例中，“A对应的B”表示B与A相关联，根据A可以确定B。但还应理解，根据A确定B并不意味着仅仅根据A确定B，还可以根据A和/或其它信息确定B。
还应理解，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
本申请中出现的类似于“项目包括如下中的一项或多项：A，B，以及C”表述的含义，如无特别说明，通常是指该项目可以为如下中任一个：A；B；C；A和B；A和C；B和C；A，B和C；A和A；A，A和A；A，A和B；A，A和C，A，B和B；A，C和C；B和B，B，B和B，B，B和C，C和C；C，C和C，以及其他A，B和C的组合。以上是以A，B和C共3个元素进行举例来说明该项目的可选用条目，当表达为“项目包括如下中至少一种：A，B，……，以及X”时，即表达中具有更多元素时，那么该项目可以适用的条目也可以按照前述规则获得。
可以理解的，本申请实施例中，终端设备和/或网络设备可以执行本申请实施例中的部分或全部步骤，这些步骤或操作仅是示例，本申请实施例还可以执行其它操作或者各种操作的变形。此外，各个步骤可以按照本申请实施例呈现的不同的顺序来执行，并且有可能并非要执行本申请实施例中的全部操作。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器ROM、随机存取存储器RAM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (41)

  1. 一种通信方法，其特征在于，包括：
    终端设备接收网络设备发送的侧链SL载波配置信息，所述SL载波配置信息包括n个SL载波的信息，n≥2，且n为整数；
    所述终端设备从所述n个SL载波中，为第一侧链无线承载SLRB对应的m个逻辑信道中的每个逻辑信道选择对应的SL载波，m≥1，且m为整数；
    其中，所述第一SLRB配置了重复功能，所述第一SLRB为所述终端设备与其他终端设备之间的无线承载。
  2. 如权利要求1所述的方法，其特征在于，所述第一SLRB对应的所有逻辑信道中的每个逻辑信道对应所述n个SL载波中的至少一个SL载波，且所述第一SLRB对应的所有逻辑信道中的任意两个逻辑信道所对应的SL载波之间没有交集，所述m个逻辑信道为所述第一SLRB对应的所有逻辑信道中的部分或全部逻辑信道。
  3. 如权利要求1或2所述的方法，其特征在于，所述第一SLRB配置了重复功能具体为：所述第一SLRB对应多个逻辑信道，并且所述多个逻辑信道用于传输相同的数据。
  4. 如权利要求1至3中任一项所述的方法，其特征在于，所述SL载波配置信息还包括所述n个SL载波中的每个SL载波对应的至少一个SL发送资源池的信息。
  5. 如权利要求4所述的方法，其特征在于，所述终端设备从所述n个SL载波中，为第一侧链承载SLRB对应的m个逻辑信道中的每个逻辑信道选择对应的SL载波，包括：
    所述终端设备从所述n个SL载波中确定有可用SL资源的发送资源池所对应的载波；
    所述终端设备从所述有可用SL资源的发送资源池所对应的载波中，为所述m个逻辑信道中的每个逻辑信道选择对应的SL载波。
  6. 如权利要求1至5中任一项所述的方法，其特征在于，所述终端设备从所述n个SL载波中，为第一侧链承载SLRB对应的m个逻辑信道中的每个逻辑信道选择对应的SL载波，包括：
    所述终端设备确定所述n个SL载波对应的测量结果中测量结果最好的w个SL载波，所述测量结果为信道忙碌比率CBR或信道质量指示CQI，w≤n，且w为整数；
    所述终端设备从所述w个SL载波中，为所述m个逻辑信道中的每个逻辑信道选择至少一个SL载波，其中，所述至少一个SL载波为所述逻辑信道所对应的部分或全部SL载波。
  7. 如权利要求6所述的方法，其特征在于，所述w个测量结果比剩余的n-w个测量结果好。
  8. 如权利要求1至7中任一项所述的方法，其特征在于，所述终端设备从所述n个SL载波中，为第一侧链无线承载SLRB对应的m个逻辑信道中的每个逻辑信道选择对应的SL载波，包括：
    所述终端设备在满足触发条件的情况下，从所述n个SL载波中，为第一SLRB对应的m个逻辑信道中的每个逻辑信道选择对应的SL载波。
  9. 如权利要求1至8中任一项所述的方法，其特征在于，终端设备接收网络设备发 送的侧链SL载波配置信息，包括：
    所述终端设备接收网络设备发送的SL配置信息，所述SL配置信息包括所述SL载波配置信息，所述SL配置信息还用于指示所述第一SLRB对应的所有逻辑信道中的每个逻辑信道与SL载波的初始对应关系。
  10. 如权利要求1至9中任一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备向网络设备发送第一指示信息，所述第一指示信息用于指示所述m个逻辑信道中的每个逻辑信道与SL载波的对应关系。
  11. 如权利要求1至10中任一项所述的方法，其特征在于，在所述终端设备为所述m个逻辑信道中的第一逻辑信道选择对应的SL载波之前，所述第一逻辑信道对应第一SL载波，所述方法还包括：
    在所述终端设备为所述m个逻辑信道中的第一逻辑信道选择对应的SL载波之后，所述终端设备在所述第一SL载波上发送所述第一SL载波对应的缓存中未发送完的数据。
  12. 如权利要求1至11中任一项所述的方法，其特征在于，所述第一SLRB对应的所有逻辑信道中的每个逻辑信道与SL载波的对应关系使得下述中的至少一项满足：
    重复的分组数据汇聚协议协议数据单元PDCP PDU被放在不同的SL载波对应的缓存中；
    重复的PCDP PDU被封装在不同的媒体接入控制协议数据单元MAC PDU中。
  13. 一种通信方法，其特征在于，包括：
    网络设备发送侧链SL载波配置信息，所述SL载波配置信息包括n个SL载波的信息，n≥2，且n为整数；
    所述网络设备接收终端设备发送的第一指示信息，所述第一指示信息用于指示第一侧链无线承载SLRB对应的m个逻辑信道中的每个逻辑信道与SL载波的对应关系，m≥1，且m为整数，其中，所述第一SLRB配置了重复功能，所述第一SLRB为所述终端设备与其他终端设备之间的无线承载。
  14. 一种通信方法，其特征在于，包括：
    终端设备接收网络设备发送的侧链SL载波配置信息和侧链无线承载SLRB配置信息，其中，所述SL载波配置信息用于配置n个SL载波，所述SLRB配置信息用于配置第一SLRB，并且所述SLRB配置信息用于指示所述第一SLRB与第一目的标识对应，所述第一SLRB配置了重复功能，所述第一SLRB为所述终端设备与其他终端设备之间的无线承载，n≥2，且n为整数；
    所述终端设备接收所述网络设备发送的第一信息，所述第一信息用于指示所述第一目的标识，以及指示所述第一SLRB对应的m个逻辑信道中的每个逻辑信道与SL载波的对应关系，m≥1，且m为整数。
  15. 一种通信方法，其特征在于，包括：
    网络设备向终端设备发送侧链SL载波配置信息和侧链无线承载SLRB配置信息，其中，所述SL载波配置信息用于配置n个SL载波，所述SLRB配置信息用于配置第一SLRB，并且所述SLRB配置信息用于指示所述第一SLRB与第一目的标识对应，所述第一SLRB配置了重复功能，所述第一SLRB为所述终端设备与其他终端设备之间的无线承载n≥2，且n为整数；
    所述网络设备向所述终端设备发送第一信息，所述第一信息用于指示所述第一目的标识，以及指示所述第一SLRB对应的m个逻辑信道中的每个逻辑信道与SL载波的对应关系，m≥1，且m为整数。
  16. 如权利要求14或15所述的方法，其特征在于，所述第一SLRB对应的所有逻辑信道中的每个逻辑信道对应所述n个SL载波中的至少一个SL载波，且所述第一SLRB对应的所有逻辑信道中的任意两个逻辑信道所对应的SL载波之间没有交集，所述m个逻辑信道为所述第一SLRB对应的所有逻辑信道中的部分或全部逻辑信道。
  17. 如权利要求14至16中任一项所述的方法，其特征在于，所述第一SLRB配置了重复功能具体为：所述第一SLRB对应多个逻辑信道，并且所述多个逻辑信道用于传输相同的数据。
  18. 如权利要求14至17中任一项所述的方法，其特征在于，所述第一信息为媒体接入控制控制单元MAC CE。
  19. 如权利要求14至18中任一项所述的方法，其特征在于，所述第一信息包括第一域、第二域和所述第二域对应的v个F i域；其中，
    所述第一域包括指示所述第一目的标识的信息；
    所述第二域包括所述第一SLRB标识，或者，所述第二域包括所述第一SLRB标识对应的索引；
    每个F i域占用至少一个比特位，i的取值为0至v-1，且i为整数，v为所述终端设备最多能够支持的SL载波数量，v≥n，且v为整数，所述F i域对应SL载波标识列表中的第i+1个SL载波标识所指示的SL载波，并指示所述SL载波与所述m个逻辑信道中的哪个逻辑信道对应，所述v个F i域所对应的v个SL载波包括所述n个SL载波。
  20. 如权利要求14至18中任一项所述的方法，其特征在于，所述第一信息包括第一域、m个第二域和每个第二域对应的v个F i域；其中，
    所述第一域包括指示所述第一目的标识的信息；
    所述m个第二域与所述m个逻辑信道一一对应，所述第二域包括其对应的逻辑信道标识，或者所述第二域包括其对应的逻辑信道标识在逻辑信道标识列表中的位置；
    每个F i域占用一个比特位，i的取值为0至v-1，且i为整数，v为所述终端设备最多能够支持的SL载波数量，v≥n，且v为整数，所述F i域对应SL载波标识列表中的第i+1个SL载波标识所指示的SL载波，并指示所述SL载波是否与所述F i域对应的第二域所对应的逻辑信道对应，所述v个F i域所对应的v个SL载波包括所述n个SL载波。
  21. 如权利要求14至20中任一项所述的方法，其特征在于，所述第一信息还包括保留位，所述保留位用于保持字节对齐。
  22. 如权利要求14所述的方法，其特征在于，在所述终端设备接收所述网络设备发送的第一信息之前，所述方法还包括：
    所述终端设备向所述网络设备上报所述第一目的标识及所述第一目的标识对应的SL频率信息。
  23. 如权利要求15所述的方法，其特征在于，所述网络设备向所述终端设备发送第一信息之前，所述方法还包括：
    所述网络设备接收所述终端设备上报的所述第一目的标识及所述第一目的标识对应 的SL频率信息。
  24. 一种通信方法，其特征在于，包括：
    终端设备接收网络设备发送的侧链无线承载SLRB配置信息，所述SLRB配置信息用于配置p个SLRB以及用于指示所述p个SLRB与第一目的标识对应，所述p个SLRB配置了重复功能，p≥1，且p为整数；
    所述终端设备接收所述网络设备发送的第一信息，所述第一信息用于指示所述第一目的标识以及所述p个SLRB中激活重复功能的SLRB，和/或，去激活重复功能的SLRB。
  25. 一种通信方法，其特征在于，包括：
    网络设备向终端设备发送侧链承载SLRB配置信息，所述SLRB配置信息用于配置p个SLRB以及用于指示所述p个SLRB与第一目的标识对应，所述p个SLRB配置了重复功能，p≥1，且p为整数；
    所述网络设备向所述终端设备发送第一信息，所述第一信息用于指示所述第一目的标识以及所述p个SLRB中激活重复功能的SLRB和/或去激活重复功能的SLRB。
  26. 如权利要求24或25所述的方法，其特征在于，所述第一SLRB配置了重复功能具体为：所述第一SLRB对应多个逻辑信道，并且所述多个逻辑信道用于传输相同的数据。
  27. 如权利要求24至26中任一项所述的方法，其特征在于，所述第一信息为媒体接入控制控制单元MAC CE。
  28. 如权利要求24至27中任一项所述的方法，其特征在于，所述第一信息包括第一域和p个B i域；其中，
    所述第一域包括指示所述第一目的标识的信息；
    每个B i域占用一个比特位，i的取值为0至p-1，且i为整数，所述B i域对应SLRB标识列表中的第i+1个SLRB标识所指示的SLRB，并指示所述SLRB的重复功能处于激活状态还是去激活状态，所述SLRB标识列表中的所述p个SLRB标识按照SLRB标识升序或者降序排列。
  29. 如权利要求24至27中任一项所述的方法，其特征在于，所述第一信息包括第一域和v个B i域，v为每个目的标识对应的目的地址最多能够配置的SLRB数量，v>p，且v为整数；其中，
    所述第一域包括指示所述第一目的标识的信息；
    每个B i域占用一个比特位，i的取值为0至v-1，且i为整数，所述B i域对应SLRB标识列表中的第i+1个SLRB标识所指示的SLRB，若所述B i域对应的SLRB配置有重复功能，所述B i域指示其对应的SLRB的重复功能处于激活状态还是去激活状态，所述v个B i域所对应的v个SLRB包括所述p个SLRB。
  30. 如权利要求29所述的方法，其特征在于，包括：
    若所述网络设备为所述第一目的标识配置的SLRB中不包括所述B i域所对应的SLRB，所述终端设备忽略所述B i域；和/或，
    若所述B i域对应的SLRB没有配置重复功能，所述终端设备忽略所述B i域。
  31. 如权利要求29所述的方法，其特征在于，包括：
    若所述网络设备为所述第一目的标识配置的SLRB中不包括所述B i域所对应的SLRB，所述网络设备设置所述B i域包括默认值；和/或，
    若所述B i域对应的SLRB没有配置重复功能，所述网络设备设置所述B i域包括默认值。
  32. 如权利要求28至31中任一项所述的方法，其特征在于，所述第一信息还用于指示除所述第一目的标识以外的其他w-1个目的标识分别对应的SLRB中激活重复功能的SLRB和/或去激活重复功能的SLRB，1≤w≤n，n为预设的整数。
  33. 如权利要求28至32中任一项所述的方法，其特征在于，所述第一信息还包括保留位，所述保留位用于保持字节对齐。
  34. 如权利要求24至27中任一项所述的方法，其特征在于，所述第一信息包括s个DST j域和r组v个B i域，2≤r≤s，且s和r均为整数，s为所述终端设备最多能够支持的目的标识的数量或者为所述网络设备为所述终端设备配置的目的标识的数量；其中，
    每个DST j域占用一个比特位，j的取值为0至s-1，且j为整数，所述DST j域与目的标识列表中的第j+1个目的标识对应，所述DST j域用于指示所述第一信息中是否存在与所述DST j域对应的一组v个B i域，所述s个DST j域所对应的目的标识中包括所述第一目的标识；
    所述r组v个B i域与所述s个DST j域中的r个DST j域一一对应，所述r个DST j域为s个DST j域中指示存在对应的一组v个B i域的r个DST j域，每个B i域占用一个比特位，i的取值为0至v-1，且i为整数，v为目的标识最多能够对应的SLRB数量，v为整数，所述B i域对应该B i域对应的DST j域所对应的SLRB标识列表中的第i+1个SLRB标识所指示的SLRB，若所述B i域对应的SLRB配置有重复功能，所述B i域指示其对应的SLRB的重复功能处于激活状态还是去激活状态，所述第一目的标识的DST j域所对应的一组v个B i域对应的SLRB包括所述p个SLRB。
  35. 如权利要求34所述的方法，其特征在于，包括：
    若所述网络设备为所述第一目的标识配置的SLRB中不包括所述B i域所对应的SLRB，所述终端设备忽略所述B i域；和/或，
    若所述B i域对应的SLRB没有配置重复功能，所述终端设备忽略所述B i域。
  36. 如权利要求34所述的方法，其特征在于，包括：
    若所述网络设备为所述第一目的标识配置的SLRB中不包括所述B i域所对应的SLRB，所述网络设备设置所述Bi域包括默认值；和/或，
    若所述B i域对应的SLRB没有配置重复功能，所述网络设备设置所述B i域包括默认值。
  37. 如权利要求34至36中任一项所述的方法，其特征在于，所述第一信息还用于指示除所述第一目的标识以外的其他w-1个目的标识分别对应的SLRB中激活重复功能的SLRB和/或去激活重复功能的SLRB，w＞n，n为预设的整数。
  38. 一种通信装置，其特征在于，所述装置用于执行如权利要求1至37中任一项所述的方法。
  39. 一种装置，其特征在于，包括：处理器，所述处理器与存储器耦合，所述存储器用于存储程序或指令，当所述程序或指令被所述处理器执行时，使得所述装置执行如权利要求1至37中任一项所述的方法。
  40. 一种可读存储介质，其上存储有计算机程序或指令，其特征在于，所述计算机程 序或指令被执行时使得计算机执行如权利要求1至37中任一项所述的方法。
  41. 一种计算机程序产品，其特征在于，包括计算机程序指令，该计算机程序指令使得计算机执行：如权利要求1至37中任一项所述的方法。
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