Multicarrier communication method and device for sidelink

Abstract

A multicarrier communication method and device for sidelink communication, the method comprising: a first terminal device determines a first carrier set according to first information, the first carrier set being a subset of a second carrier set for sidelink communication; and the first terminal device operates the carriers in the first carrier set. According to the embodiments of the present application, in a carrier set which can be used for a first terminal device to perform sidelink transmission, a first carrier set is screened through first information, and carriers in the first carrier set are operated. Therefore, the number of carriers needing to be monitored in the working process of the first terminal equipment is reduced, and the power consumption of the first terminal equipment is reduced.

Description

[0001] This application is a divisional application of the PCT international patent application PCT / CN2021 / 111108 with an application date of August 6, 2021, which has entered the Chinese national phase with Chinese patent application number 202180100243.0 and the invention name being “A multi-carrier communication method and device for sidelink”. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to the field of multi-carrier communication technology in a sidelink. Background Art

[0003] In existing systems that support multi-carrier communications, such as the Vehicle to Everything (V2X) system in the Long Term Evolution (LTE) technology, different carriers have equal status in the system. Users process available carriers independently, which results in too many carriers that users need to detect, resulting in increased power consumption. Summary of the invention

[0004] The present application provides a multi-carrier communication method and apparatus for a side link that can reduce the power consumption of a terminal device.

[0005] This application provides the following technical solutions:

[0006] On the one hand, a multi-carrier communication method for a sidelink is provided, comprising: a first terminal device determines a first carrier set based on first information, wherein the first carrier set is a subset of a second carrier set used for sidelink communication; and the first terminal device operates carriers in the first carrier set.

[0007] On the other hand, a multi-carrier communication method for a sidelink is provided, comprising: configuring a correspondence between first information and a first carrier set for a first terminal device, so that the first terminal device can determine the first carrier set based on the first information, and operate on the carriers in the first carrier set; wherein the first carrier set is a subset of a second carrier set used for sidelink communication.

[0008] On the other hand, a multi-carrier communication device for a sidelink is provided, comprising: a determination unit for determining a first carrier set based on first information, wherein the first carrier set is a subset of a second carrier set used for sidelink communication; and a processing unit for operating carriers in the first carrier set.

[0009] On the other hand, a multi-carrier communication device for a sidelink is provided, comprising: a configuration unit, for configuring a correspondence between first information and a first carrier set for a first terminal device, so that the first terminal device can determine the first carrier set according to the first information, and operate on the carriers in the first carrier set; wherein the first carrier set is a subset of the second carrier set used for sidelink communication.

[0010] On the other hand, a multi-carrier communication device for a side link is provided, comprising: a processor and a memory; the processor calls a program in the memory to execute a multi-carrier communication method for a side link provided by any one embodiment of the present application.

[0011] On the other hand, a chip is provided, comprising: a processor, configured to call and run a computer program from a memory, and a device equipped with the chip executes the multi-carrier communication method for a side link provided in any one of the embodiments of the present application.

[0012] On the other hand, a computer-readable storage medium is provided, wherein a program of a multi-carrier communication method for a side link is stored on the computer-readable storage medium, and the program of the multi-carrier communication method for the side link is executed by a processor. The multi-carrier communication method for the side link provided by any embodiment of the present application.

[0013] On the other hand, a computer program product is provided, wherein the computer program product is stored in a non-transitory computer-readable storage medium, and when the computer program is executed, it implements the multi-carrier communication method for the side link provided by any embodiment of the present application.

[0014] The beneficial effect of the present application is that: through the first information, a first carrier set is screened out from a carrier set that can be used for sidelink transmission by the first terminal device, and only the carriers in the first carrier set are operated. Thus, the number of carriers that need to be monitored during the operation of the first terminal device is reduced, thereby reducing its power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1A and Figure 1B This is a system architecture diagram for the implementation scheme of this application.

[0016] Figure 2 A multi-carrier communication method for a side link is provided in embodiment 1 of the present application.

[0017] Figure 3 A schematic structural diagram of a multi-carrier communication device for a side link provided in Embodiment 2 of the present application.

[0018] Figure 4 A schematic structural diagram of a multi-carrier communication device for a side link provided in Embodiment 3 of the present application.

[0019] Figure 5 A schematic structural diagram of a multi-carrier communication device for a side link provided in Embodiment 4 of the present application. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are only used to explain the present application and are not intended to limit the present application. However, the present application can be implemented in a variety of different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] The embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system, New Radio (NR) system, NR system evolution system, LTE on unlicensed spectrum (LTE-U) system, NR on unlicensed spectrum (NR-based access to unlicensed spectrum, NR-U) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), next generation communication system or other communication systems, etc.

[0023] Optionally, the communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, or a standalone (SA) networking scenario.

[0024] Device-to-Device (D2D) and Vehicle to Everything (V2X) systems are a type of side link (SL) transmission technology. Unlike traditional cellular systems where communication data is received or sent by base stations, D2D / V2X uses direct terminal-to-terminal communication.

[0025] In LTE, 3GPP defines two sidelink transmission modes: Mode A and Mode B.

[0026] Figure 1AA wireless communication system 100A, i.e., mode A, to which an embodiment of the present application is applied is shown. The wireless communication system 100 includes a network device 110 and terminal devices 120 and 130. The transmission resources of the terminal devices 120 and 130 are allocated by the network device 110, and the terminal devices 120 and 130 perform data transmission on the sidelink according to the resources allocated by the network device 110; the network device 110 can allocate resources for single transmission to the terminal devices 120 and 130, and can also allocate resources for semi-static transmission to the terminal devices 120 and 130.

[0027] Figure 1B Another wireless communication system 100B to which the embodiment of the present application is applied is shown, namely, mode B. The wireless communication system 100 includes terminal devices 120 and 130. The terminal devices 120 and 130 select a resource in a resource pool to perform data transmission on a side link.

[0028] Optionally, the wireless communication system 100 may include multiple network devices and each network device may include other number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0029] In NR, D2D is studied in different stages. In Rel-12 / 13, D2D is studied for ProSe (Proximity based Service) scenarios, which mainly targets public safety services. In Rel-14 / 15, vehicle-to-vehicle communication scenarios of V2X are studied, which mainly target relatively high-speed vehicle-to-vehicle and vehicle-to-person communication services. In Rel-14, the scenario of wearable devices (FeD2D, Further Enhancements to LTE Device to Device) accessing the network through mobile phones is studied, which mainly targets low mobile speed and low-power access scenarios.

[0030] On the basis of LTE V2X, NR V2X is no longer limited to broadcast scenarios, but further expanded to unicast and multicast scenarios, and studies the application of V2X in these scenarios. Similar to LTE V2X, NR V2X will also define the above-mentioned two resource authorization modes, mode A and B. Furthermore, the user may be in a mixed mode, that is, it can use mode A to obtain resources and mode B to obtain resources at the same time. The resource acquisition is indicated by the sidelink authorization, that is, the sidelink authorization indicates the time-frequency position of the corresponding PSCCH (Physical Sidelink Control Channel) and PSSCH (Physical sidelink shared CHannel) resources. Different from LTE V2X, in addition to the non-feedback, UE-initiated HARQ (Hybrid Automatic RepeatreQuest) retransmission, NR (New Radio) V2X introduces feedback-based HARQ retransmission, which is not limited to unicast communication, but also includes multicast communication.

[0031] The network device 110 can provide communication coverage for a specific geographical area, and can communicate with a terminal device (User Equipment, UE) located in the coverage area. Optionally, the network device 100 can be a satellite, a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, an evolutionary base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device can be a relay station, an access point, a vehicle-mounted device, a wearable device, a network-side device in a 5G network, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.

[0032] The terminal devices 120, 130 may be mobile or fixed. Optionally, the terminal device 120 may refer to an access terminal, a terminal device, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a terminal device, a terminal, a wireless communication device, a user agent or a user device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a Wireless Local Loop (Wireless Local Loop, WLL) station, a Personal Digital Assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network or a terminal device in a future evolved PLMN, etc.

[0033] The following embodiments of the present application will elaborate on how to perform multi-carrier communication in the sidelink.

[0034] Implementation Method 1

[0035] Please see Figure 2 , a multi-carrier communication method for a side link provided in Embodiment 1 of the present application, the multi-carrier communication method comprising:

[0036] S210, the first terminal device determines a first carrier set according to the first information, where the first carrier set is a subset of the second carrier set used for sidelink communication;

[0037] S220: The first terminal device operates the carriers in the first carrier set.

[0038] Optionally, there is a certain correspondence between the first information and the first carrier set. The correspondence can be configured to the first terminal device in the following manner: by pre-configuration, network configuration, or by configuration through signaling of a second terminal device.

[0039] Optionally, the pre-configuration method is:

[0040] Preconfiguring the correspondence between the first information and the first carrier set in the first terminal device, specifically, in a card of the first terminal device, such as a memory card, etc.; or,

[0041] The correspondence between the pre-configured first information and the first carrier set is configured to the first terminal device through signaling of the core network network element. In this pre-configuration method, the core network network element sends a signal to the first terminal, and the signal pre-configures the correspondence between the first information and the first carrier set to the first terminal. Optionally, the signaling through the core network network element includes a management terminal device policy command (ManageUEPolicyCommand).

[0042] Optionally, the network configuration method is: configuring the correspondence between the first information and the first carrier set to the first terminal device through a system message or a dedicated radio resource control (Radio Resource Control, RRC) signaling. In this pre-configuration method, the network device sends a system message or a dedicated RRC signaling to the first terminal device, and the system message or the dedicated RRC signaling configures the correspondence between the first information and the first carrier set to the first terminal device. Optionally, the dedicated RRC signaling includes a reconfiguration signaling RRCReconfiguration.

[0043] Optionally, the configuration method through the signaling of the second terminal device is: the correspondence between the first information and the first carrier set is configured to the first terminal device through the PC5-RRC signaling of the second terminal device. In this configuration method, the second terminal device sends PC5-RRC (RRC of PC5 interface) signaling to the first terminal device, and the correspondence between the first information and the first carrier set is configured to the first terminal device through the PC5-RRC signaling. Optionally, the second terminal device is a terminal device at the opposite end that performs sidelink communication with the first terminal device. Optionally, the PC5-RRC signaling of the second terminal device includes PC5-RRC signaling.

[0044] Optionally, the first information includes part or all of at least one of the following information:

[0045] The first application identifier Application ID, the first service identifier Service ID, the first service provider identifier (Provider Service I dentifier, PSID) / Intelligent Transportation System Application Identifier (Intelligent Transportation System Application Identifier, ITS-AID), the first quality of service (Quality of Service, QoS) attribute, the first layer 2 identifier (L2 ID), the first bearer, and the first logical channel. Among them, the first L2 ID includes the L2 ID of the source terminal device, and may also include the L2ID of the destination terminal device / opposite terminal device. Optionally, the first information may include at least one of the above information, and may also include only a part of the at least one information, for example: the first information includes the first L2 ID, and if the L2 ID length is 24 bytes, only 16 bytes of it may be used.

[0046] In a specific implementation of the present application, the set of sidelink carriers available to the first terminal device is the second carrier set. The terminal device uses the first information to filter the carriers in the second carrier set, and the filtered carrier set is the first carrier set. Therefore, the first carrier set is a subset of the second carrier set. The first information can implement different screening schemes for the sidelink carriers available to the terminal device through different information combinations.

[0047] For example: If the first information uses identification information to filter the side link carrier, assuming that the side link carrier corresponding to the first application identifier Application ID with a value of 1 is to be used as the first carrier set, then when the first terminal device receives information (including data, information, signals, etc.), the first application identifier Application ID is obtained. If the first application identifier Application ID is 1, the first terminal device only processes the information on the first carrier set, for example, only sends and receives the data on the first carrier set.

[0048] If the first information uses Qos attributes to filter the sidelink carriers, at least one dimension of the Qos attributes is used as a filtering condition, and different dimension combinations correspond to different first carrier sets. The dimensions of the Qos attributes include at least one of the following: PC5 QoS parameters, such as PQI, PC5 Flow Bit Rates, PC5 Link Aggregated BitRates, Range, Default Values; PC5 QoS features, such as Resource Type, Priority Level, Packet Delay Budget, Packet Error Rate, Averaging Window, Maximum Data Burst Volume.

[0049] If the first information uses a bearer or a logical channel to filter the sidelink carrier, different bearers correspond to different first carrier sets, that is, different bearers, that is, different Packet Data Convergence Protocol (PDCP) entities correspond to different first carrier sets; or, different logical channels can correspond to different first carrier sets, that is, different Radio Link Layer Control Protocol (Radio Link Control, RLC) entities correspond to different first carrier sets.

[0050] Optionally, the above-mentioned information included in the first information may be in an AND relationship or an OR relationship, and in actual use, it can be determined according to needs. For example: the first information includes the first Application ID and the first Service ID, then the set of carriers corresponding to both the first Application ID and the first Service ID is the first carrier set, that is, the carriers in the first carrier set need to correspond to both the first Application ID and the first Service ID. For another example, if the first information includes the first Application ID or the first Service ID, then the carrier corresponding to the first Application ID and the carrier corresponding to the first Service ID together constitute the first carrier set, that is, the carriers in the first carrier set only need to correspond to one of the first Application ID and the first Service ID.

[0051] Optionally, S220, the first terminal device operates on the carrier in the first carrier set, including: the first terminal device detects a first message carried by the carrier in the first carrier set; and / or the first terminal device sends a first message via the carrier in the first carrier set.

[0052] Optionally, the first message includes at least one of the following: a first physical layer channel, such as PSCCH, PSFCH; a first media access layer control element (Media Access Control Control Element, MAC CE), such as: Sidelink CSI report; a first radio link control (Radio Link Control, RLC) / packet data aggregation protocol (Packet Data Convergence Protocol, PDCP) controlled protocol data unit (Protocol Data Unit, PDU), such as: status report; a first PC5-RRC message; a first PC5-S message; or; a first discovery message (Discovery Message).

[0053] In a specific implementation of the present application, the first terminal device only needs to detect the first message carried by the carrier in the first carrier set; and / or, send the first message through the carrier in the first carrier set. For example: when the first carrier set is used to carry PSCCH and PSFCH, that is, PSCCH and PSFCH will only be triggered on the first carrier set. If the terminal device needs to receive the corresponding information, it only needs to detect the first carrier set. In this way, the power consumption of the first terminal device can be reduced.

[0054] Optionally, S220, the first terminal device operates on the carriers in the first carrier set, including: the first terminal device operates on the first carrier set, including: the first terminal device detects the first carrier set to complete a first function.

[0055] Optionally, the first function includes a measurement or detection function.

[0056] Optionally, the measurement or detection function includes at least one of the following:

[0057] Determine whether a radio link failure RLF occurs;

[0058] Performing RSRP measurement on the sidelink of the second terminal device; wherein the RSRP measurement can be used by the first terminal device to select or reselect a relay terminal device, or report to the second terminal device (such as a peer terminal device) for the second terminal device to perform transmit power control;

[0059] Performing channel state information CSI measurement on the second terminal device; wherein the CSI measurement can be used to report to the second terminal device (such as the opposite terminal device) for the second terminal device to perform transmit power control, modulation and coding mode selection, etc.;

[0060] Perform beam measurement on the second terminal device; wherein the beam measurement can be used to report to the second terminal device (such as the opposite terminal device) for the second terminal device to perform transmission beam selection, etc.

[0061] Optionally, the first terminal device detecting the first carrier set to determine whether RLF occurs includes:

[0062] The first terminal device detects the carriers in the first carrier set, and if the physical sidelink feedback channel PSFCH is not received, increases the counter value until the counter reaches a maximum value, and then determines that RLF has occurred. Optionally, if the PSFCH is received, the counter is reset.

[0063] In a specific implementation of the present application, the first terminal device detects the first carrier set to complete the first function. For example, if it is to be determined whether RLF has occurred, only the first carrier set needs to be detected. Thus, the power consumption of the first terminal device can be reduced.

[0064] Optionally, if it is determined that the authorized carrier in the second carrier set is the first carrier set; then S220, the first terminal device operates the carrier in the first carrier set, including: the first terminal device uses the first carrier for transmission. When the unauthorized carrier has a lot of interference and cannot obtain a transmission opportunity, the transmission quality cannot be guaranteed. If the authorized carrier is screened out from the second carrier set as the first carrier set and transmission is performed on the first carrier set, the transmission quality can be better guaranteed in comparison. Therefore, using the authorized carrier as an embodiment of the first carrier set can not only reduce the power consumption of the first terminal device, but also improve the transmission quality of the side link.

[0065] Optionally, if it is determined that the carrier with a low congestion level in the second carrier set is the first carrier set; then S220, the first terminal device operates the carrier in the first carrier set, including: the first terminal device uses the first carrier for transmission. The carriers in the second carrier set have different congestion levels. In the carrier with a higher congestion level, more transmission opportunities cannot be obtained, so the transmission quality cannot be guaranteed. If the carrier with a low congestion level is screened out from the second carrier set as the first carrier set and transmitted on the first carrier set, the transmission quality can be better guaranteed in comparison. Therefore, using a carrier with a low congestion level as an embodiment of the first carrier set can not only reduce the power consumption of the first terminal device, but also improve the transmission quality of the side link.

[0066] Optionally, the second carrier set corresponds to the second information. That is, the second carrier set may also be a carrier set for sidelink transmission selected in the same way. On this basis, the first carrier set is screened for the second time.

[0067] The second information includes all or part of at least one of the following: a second application ID, a second service ID, a second service provider ID / intelligent transmission system application ID PSID / ITS-AID, a second quality of service QoS attribute, a second layer 2 ID L2 ID, a second bearer, and a second logical channel. Optionally, the second information may include at least one of the above information, and may also include only a part of the at least one information, for example: the second information includes a second L2 ID, and if the L2 ID length is 24 bytes, only 16 bytes of it may be used.

[0068] Optionally, the above-mentioned information included in the second information may be in an AND relationship or an OR relationship, and in actual use, it can be determined according to needs. For example: the second information includes a second Application ID and a second Service ID, then the set of carriers corresponding to both the second Application ID and the second Service ID is the second carrier set, that is, the carriers in the second carrier set need to correspond to both the second Application ID and the second Service ID. For another example, if the second information includes a second Application ID or a second Service ID, then the carrier corresponding to the second Application ID and the carrier corresponding to the second Service ID together constitute the second carrier set, that is, the carriers in the second carrier set only need to correspond to one of the second Application ID and the second Service ID.

[0069] In the first implementation mode of the present application, a first carrier set is selected from a carrier set that can be used for sidelink transmission by a first terminal device through the first information, and only the carriers in the first carrier set are operated. Thus, the number of carriers that need to be monitored during the operation of the first terminal device is reduced, thereby reducing its power consumption.

[0070] Implementation Method 2

[0071] Please see Figure 3 , is a schematic diagram of the structure of a multi-carrier communication device 300 for a side link provided in Embodiment 2 of the present application, and the multi-carrier communication device 300 may be the first terminal device in Embodiment 1. The multi-carrier communication device 300 includes:

[0072] The determining unit 310 is configured to determine a first carrier set according to the first information, where the first carrier set is a subset of a second carrier set used for sidelink communication;

[0073] The processing unit 320 is configured to operate on the carriers in the first carrier set.

[0074] Optionally, the correspondence between the first information and the first carrier set is configured to the first terminal device in a pre-configuration manner, a network configuration manner, or a configuration manner through signaling of the second terminal device.

[0075] Optionally, the preconfiguration method is to preconfigure the correspondence between the first information and the first carrier set in the multi-carrier communication device, or to preconfigure it in the card of the multi-carrier communication device; or, to configure the correspondence between the preconfigured first information and the first carrier set to the multi-carrier communication device through signaling of a core network element.

[0076] Optionally, the signaling of the core network element includes a terminal equipment policy management command ManageUEPolicyCommand.

[0077] Optionally, the network configuration is performed by configuring the corresponding relationship between the first information and the first carrier set to the multi-carrier communication device through a system message or a dedicated radio resource control (RRC) signaling. Optionally, the dedicated RRC signaling includes a reconfiguration signaling (RRCReconfiguration).

[0078] Optionally, the configuration is performed by signaling of the second terminal device by configuring the correspondence between the first information and the first carrier set to the multi-carrier communication apparatus through PC5-RRC signaling of the second terminal device. Optionally, the PC5-RRC signaling of the second terminal device includes PC5-RRC signaling.

[0079] Optionally, the first information includes part or all of at least one of the following information:

[0080] A first application ID, a first service ID, a first service provider ID / intelligent transmission system application ID PSID / ITS-AID, a first quality of service QoS attribute, a first layer 2 ID L2 ID, a first bearer, and a first logical channel.

[0081] Optionally, the processing unit is specifically used to detect a first message carried by a carrier in the first carrier set; and / or send the first message via a carrier in the first carrier set.

[0082] Optionally, the first message includes at least one of the following: a first physical layer channel, a first media access layer control unit MAC CE, a first radio link control / packet data aggregation protocol controlled protocol data unit RLC / PDCPControl PDU, a first PC5-RRC message, a first PC5-S message, or a first discovery message Discovery Message.

[0083] Optionally, the processing unit is specifically configured to detect the first carrier set to complete a first function. Optionally, the first function includes: a measurement or detection function.

[0084] Optionally, the measurement or detection function includes at least one of the following:

[0085] Determine whether a radio link failure RLF occurs;

[0086] Performing a reference signal received power (RSRP) measurement on a sidelink of the second terminal device;

[0087] Performing channel state information CSI measurement on the second terminal device;

[0088] Perform beam measurement on the second terminal device.

[0089] Optionally, the processing unit 320 is specifically used to detect the carriers in the first carrier set, and if the physical sidelink feedback channel PSFCH is not received, increase the counter value until the counter reaches a maximum value, and then determine that RLF has occurred.

[0090] Optionally, the processing unit 320 is further specifically configured to reset the counter if the PSFCH is received.

[0091] Optionally, the authorized carrier in the second carrier set is the first carrier set; then the processing unit 320 is specifically configured to use the first carrier for transmission.

[0092] Optionally, the carrier with a low congestion level in the second carrier set is the first carrier set; then the processing unit 320 is specifically configured to use the first carrier for transmission.

[0093] Optionally, the second carrier set corresponds to second information. The second information includes at least one of the following: a second application ID, a second service ID, a second service provider ID / intelligent transmission system application ID PSID / ITS-AID, a second quality of service QoS attribute, a second layer 2 ID L2 ID, a second bearer, and a second logical channel.

[0094] For any incomplete details in the second embodiment, please refer to the same or corresponding parts in the first embodiment above, and no repetition will be made here.

[0095] Implementation Method 3

[0096] Please see Figure 4 , a schematic diagram of the structure of a multi-carrier communication device 400 for a side link provided in Embodiment 3 of the present application. The multi-carrier communication device 400 may be a network device, a second terminal device, a core network element, or other device of Embodiment 1. The multi-carrier communication device 400 includes:

[0097] The configuration unit 410 is used to configure the correspondence between the first information and the first carrier set for the first terminal device, so that the first terminal device can determine the first carrier set according to the first information and operate the carriers in the first carrier set; wherein the first carrier set is a subset of the second carrier set used for sidelink communication.

[0098] Optionally, the configuration unit 410 is configured to configure, for the first terminal device, a correspondence between the first information and the first carrier set, including:

[0099] The configuration unit 410 is specifically used to configure the correspondence between the first information and the first carrier set to the first terminal device through pre-configuration, network configuration, or configuration through signaling of the second terminal device.

[0100] Optionally, the preconfiguration method is to preconfigure the correspondence between the first information and the first carrier set in the first terminal device, or to preconfigure it in a card of the first terminal device; or, to configure the correspondence between the preconfigured first information and the first carrier set to the first terminal device through signaling of a core network element.

[0101] Optionally, the signaling of the core network element includes a terminal equipment policy management command ManageUEPolicyCommand.

[0102] Optionally, the network configuration method is to configure the correspondence between the first information and the first carrier set to the first terminal device through a system message or a dedicated radio resource control RRC signaling.

[0103] Optionally, the dedicated RRC signaling includes reconfiguration signaling RRCReconfiguration.

[0104] Optionally, the configuration is performed through signaling of the second terminal device by configuring the correspondence between the first information and the first carrier set to the first terminal device through PC5-RRC signaling of the second terminal device.

[0105] Optionally, the PC5-RRC signaling of the second terminal device includes PC5-RRC signaling.

[0106] Optionally, the first information includes part or all of at least one of the following information: a first application identifier Application ID, a first service identifier Service ID, a first service provider identifier / intelligent transmission system application identifier PSID / ITS-AID, a first quality of service QoS attribute, a first layer 2 identifier L2 ID, a first bearer, and a first logical channel.

[0107] Optionally, the first terminal device operates the first carrier set, including: the first terminal device detects a first message carried by a carrier in the first carrier set; and / or the first terminal device sends a first message via a carrier in the first carrier set.

[0108] Optionally, the first message includes at least one of the following: a first physical layer channel, a first media access layer control unit MAC CE, a first radio link control / packet data aggregation protocol controlled protocol data unit RLC / PDCPControl PDU, a first PC5-RRC message, a first PC5-S message, or a first discovery message Discovery Message.

[0109] Optionally, the first terminal device operates the first carrier set, including: the first terminal device detects the first carrier set to complete a first function. Optionally, the first function includes: a measurement or detection function.

[0110] Optionally, the measurement or detection function includes at least one of the following:

[0111] Determine whether a radio link failure RLF occurs;

[0112] Performing a reference signal received power (RSRP) measurement on a sidelink of the second terminal device;

[0113] Performing channel state information CSI measurement on the second terminal device;

[0114] Perform beam measurement on the second terminal device.

[0115] Optionally, the first terminal device detecting the first carrier set to determine whether RLF occurs includes:

[0116] The first terminal device detects the carriers in the first carrier set, and if the physical sidelink feedback channel PSFCH is not received, increases the counter value until the counter reaches a maximum value, and then determines that RLF has occurred. Optionally, if the PSFCH is received, the counter is reset.

[0117] Optionally, the authorized carrier in the second carrier set is the first carrier set; then the first terminal device operates the first carrier set, including: the first terminal device uses the first carrier for transmission.

[0118] Optionally, the carrier with a low congestion level in the second carrier set is the first carrier set; then the first terminal device operates the first carrier set, including: the first terminal device uses the first carrier for transmission.

[0119] Optionally, the second carrier set corresponds to second information. The second information includes at least one of the following: a second application ID, a second service ID, a second service provider ID / intelligent transmission system application ID PSID / ITS-AID, a second quality of service QoS attribute, a second layer 2 ID L2 ID, a second bearer, and a second logical channel.

[0120] For any incomplete details in the third embodiment, please refer to the same or corresponding parts in the first embodiment above, and no repetition will be made here.

[0121] Implementation Method 4

[0122] Please see Figure 5 , a schematic diagram of a multi-carrier communication device 500 for a side link provided in Embodiment 4 of the present application. The multi-carrier communication device 500 includes: a processor 510 and a memory 520. The processor 510 and the memory 520 are connected to each other through a bus system.

[0123] The memory 520 is a computer-readable storage medium storing a program that can be run on the processor 510. The processor 510 calls the program in the memory 520 to execute the corresponding process in the multi-carrier communication method for the sidelink provided in the first embodiment.

[0124] The processor 510 may be an independent component or a collective term for multiple processing elements, for example, a CPU, an ASIC, or one or more integrated circuits configured to implement the above method, such as at least one microprocessor DSP, or at least one programmable gate array FPGA, etc.

[0125] Those skilled in the art should be aware that in one or more of the above examples, the functions described in the specific embodiments of the present application can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented by a processor executing software instructions. Software instructions can be composed of corresponding software modules. The software module can be stored in a computer-readable storage medium, which can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a digital video disc (Digital Video Disc, DVD)), or a semiconductor medium (e.g., a solid-state drive (Solid State Disk, SSD)), etc. The computer-readable storage medium includes, but is not limited to, random access memory (RAM), flash memory, read-only memory (ROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), registers, hard disks, mobile hard disks, read-only compact disks (CD-ROMs), or any other form of storage medium known in the art. An exemplary computer-readable storage medium is coupled to a processor so that the processor can read information from the computer-readable storage medium and write information to the computer-readable storage medium. Of course, the computer-readable storage medium can also be a component of the processor. The processor and the computer-readable storage medium can be located in an ASIC. In addition, the ASIC can be located in an access network device, a target network device, or a core network device. Of course, the processor and the computer-readable storage medium can also exist as discrete components in an access network device, a target network device, or a core network device. When implemented using software, it can also be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer or chip, the processes or functions described in the specific implementation of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.The computer program instructions may be stored in the above-mentioned computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from one website site, computer, server or data center to another website site, computer, server or data center via wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means.

[0126] The above embodiments illustrate but do not limit the present invention, and those skilled in the art can design multiple alternative examples within the scope of the claims. Those skilled in the art should be aware that the present application is not limited to the precise structure described above and shown in the drawings, and that appropriate adjustments, modifications, equivalent substitutions, improvements, etc. can be made to the specific implementation schemes without violating the scope of the present invention as defined in the attached claims. Therefore, any modifications and changes made according to the concept and principle of the present invention are within the scope of the present invention as defined in the attached claims.

Claims

1. A multi-carrier communication method for a side link, characterized in that: The multi-carrier communication method comprises: The first terminal device determines a first carrier set according to the first information, where the first carrier set is a subset of the second carrier set used for sidelink communication; The first terminal device operates on the carriers in the first carrier set.

2. The multi-carrier communication method according to claim 1, wherein: The correspondence between the first information and the first carrier set is configured to the first terminal device in a network configuration manner.

3. The multi-carrier communication method according to claim 2, wherein: The network configuration method is to configure the corresponding relationship between the first information and the first carrier set to the first terminal device through a system message or a dedicated radio resource control RRC signaling, The dedicated RRC signaling includes reconfiguration signaling RRCReconfiguration.

4. The multi-carrier communication method according to any one of claims 1 to 3, characterized in that: The first information includes part or all of at least one of the following information: First bearer, first logical channel.

5. The multi-carrier communication method according to any one of claims 1 to 3, characterized in that: The first terminal device operates the first carrier set, including: The first terminal device sends a first message through a carrier in the first carrier set, The first message includes at least one of the following: a first PC5-RRC message, a first PC5-S message.

6. The multi-carrier communication method according to any one of claims 1 to 3, characterized in that: The first terminal device operates the first carrier set, including: The first terminal device detects the first carrier set to perform a first function, Wherein, the first function includes: detection function, The detection function includes: determining whether a radio link failure RLF occurs.

7. The multi-carrier communication method according to claim 6, wherein: The first terminal device detects the first carrier set to determine whether RLF occurs, including: The first terminal device detects the carriers in the first carrier set, and if the physical sidelink feedback channel PSFCH is not received, increases the counter value until the counter reaches a maximum value, and determines that RLF has occurred.

8. The multi-carrier communication method according to claim 7, wherein: The first terminal device detects the first carrier set to determine whether RLF occurs, further comprising: If the PSFCH is received, the counter is reset.

9. A multi-carrier communication method for a sidelink, characterized in that: The method comprises: A correspondence between first information and a first carrier set is configured for a first terminal device, so that the first terminal device can determine the first carrier set according to the first information and operate on the carriers in the first carrier set; wherein the first carrier set is a subset of the second carrier set used for sidelink communication.

10. The multi-carrier communication method according to claim 9, wherein: The correspondence between the first information and the first carrier set is configured to the first terminal device in a network configuration manner.

11. The multi-carrier communication method according to claim 10, wherein: The network configuration method is to configure the corresponding relationship between the first information and the first carrier set to the first terminal device through a system message or a dedicated radio resource control RRC signaling, The dedicated RRC signaling includes reconfiguration signaling RRCReconfiguration.

12. The multi-carrier communication method according to any one of claims 9 to 11, characterized in that: The first information includes part or all of at least one of the following information: First bearer, first logical channel.

13. The multi-carrier communication method according to any one of claims 9 to 11, characterized in that: The first terminal device operates the first carrier set, including: The first terminal device sends a first message through a carrier in the first carrier set, The first message includes at least one of the following: a first PC5-RRC message, a first PC5-S message.

14. The multi-carrier communication method according to any one of claims 9 to 11, characterized in that: The first terminal device operates the first carrier set, including: The first terminal device detects the first carrier set to perform a first function, Wherein, the first function includes: detection function, The detection function includes: determining whether a radio link failure RLF occurs.

15. The multi-carrier communication method according to claim 14, wherein: The first terminal device detects the first carrier set to determine whether RLF occurs, including: The first terminal device detects the carriers in the first carrier set, and if the physical sidelink feedback channel PSFCH is not received, increases the counter value until the counter reaches a maximum value, and determines that RLF has occurred.

16. The multi-carrier communication method according to claim 15, wherein: The first terminal device detects the first carrier set to determine whether RLF occurs, further comprising: If the PSFCH is received, the counter is reset.

17. A multi-carrier communication device for a side link, characterized in that: The multi-carrier communication device comprises: a determining unit, configured to determine a first carrier set according to the first information, wherein the first carrier set is a subset of the second carrier set used for sidelink communication; A processing unit is used to operate on the carriers in the first carrier set.

18. The multi-carrier communication device according to claim 17, wherein: The correspondence between the first information and the first carrier set is configured to the first terminal device in a network configuration manner.

19. The multi-carrier communication device according to claim 18, wherein: The network configuration method is to configure the corresponding relationship between the first information and the first carrier set to the multi-carrier communication device through a system message or a dedicated radio resource control RRC signaling, The dedicated RRC signaling includes reconfiguration signaling RRCReconfiguration.

20. The multi-carrier communication device according to any one of claims 17 to 19, characterized in that: The first information includes part or all of at least one of the following information: First bearer, first logical channel.

21. The multi-carrier communication device according to any one of claims 17 to 19, characterized in that: The processing unit sends a first message through a carrier in the first carrier set, The first message includes at least one of the following: a first PC5-RRC message, a first PC5-S message.

22. The multi-carrier communication device according to any one of claims 17 to 19, characterized in that: The processing unit is specifically configured to detect the first carrier set to complete a first function, Wherein, the first function includes: detection function, The detection function includes: determining whether a radio link failure RLF occurs.

23. The multi-carrier communication device according to claim 22, wherein: The processing unit is specifically used to detect the carriers in the first carrier set, and if the physical sidelink feedback channel PSFCH is not received, increase the counter value until the counter reaches a maximum value, and then determine that RLF has occurred.

24. The multi-carrier communication device according to claim 23, wherein: The processing unit is further specifically configured to reset the counter if the PSFCH is received.

25. A multi-carrier communication device for a side link, characterized in that: The multi-carrier communication device comprises: A configuration unit, used to configure a correspondence between first information and a first carrier set for a first terminal device, so that the first terminal device can determine the first carrier set according to the first information and operate on the carriers in the first carrier set; wherein the first carrier set is a subset of a second carrier set used for sidelink communication.

26. The multi-carrier communication device according to claim 25, wherein: The configuration unit is used to configure the correspondence between the first information and the first carrier set for the first terminal device, including: The configuration unit is specifically used to configure the correspondence between the first information and the first carrier set to the first terminal device through network configuration.

27. The multi-carrier communication device according to claim 26, wherein: The network configuration method is to configure the correspondence between the first information and the first carrier set to the first terminal device through a system message or a dedicated radio resource control RRC signaling, The dedicated RRC signaling includes reconfiguration signaling RRCReconfiguration.

28. The multi-carrier communication device according to any one of claims 25 to 27, characterized in that: The first information includes part or all of at least one of the following information: First bearer, first logical channel.

29. The multi-carrier communication device according to any one of claims 25 to 27, characterized in that: The first terminal device operates the first carrier set, including: The first terminal device sends a first message through a carrier in the first carrier set, The first message includes at least one of the following: a first PC5-RRC message, a first PC5-S message.

30. The multi-carrier communication device according to any one of claims 25 to 27, characterized in that: The first terminal device operates the first carrier set, including: The first terminal device detects the first carrier set to perform a first function, Wherein, the first function includes: detection function, The detection function includes: determining whether a radio link failure RLF occurs.

31. The multi-carrier communication device according to claim 30, wherein: The first terminal device detects the first carrier set to determine whether RLF occurs, including: The first terminal device detects the carriers in the first carrier set, and if the physical sidelink feedback channel PSFCH is not received, increases the counter value until the counter reaches a maximum value, and determines that RLF has occurred.

32. The multi-carrier communication device according to claim 31, wherein: The first terminal device detects the first carrier set to determine whether RLF occurs, further comprising: If the PSFCH is received, the counter is reset.

33. A multi-carrier communication device for a side link, characterized in that: The device includes: a processor and a memory; the processor calls a program in the memory to execute the multi-carrier communication method for the side link as described in any one of claims 1 to 16.

34. A chip, characterized in that: include: A processor is used to call and run a computer program from a memory, and a device equipped with the chip executes the multi-carrier communication method for a side link as described in any one of claims 1 to 16.

35. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a program for a multi-carrier communication method for a side link, and when the program for the multi-carrier communication method for a side link is executed by a processor, the multi-carrier communication method for a side link described in any one of claims 1 to 16 is implemented.

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