A method of sidelink communication and apparatuses thereof

Abstract

The embodiment of the disclosure discloses a kind of sidelink communication method and its device. Wherein method includes: for sidelink authorization, terminal determines at least one target address support for the carrier used for sidelink SL data reception and / or transmission;Based on at least one target address support for the carrier used for SL data reception and / or transmission, from at least one target address, determine the first target address of the sidelink medium access control protocol data unit SL MAC PDU sent by terminal, and / or determine the logical channel included in SL MAC PDU;Wherein, the first target address supports SL data reception on the carrier associated with sidelink authorization. By implementing the embodiment of the disclosure, the problem that the influence of limited receiving terminal capability on logical channel priority LCP process is unclear in NR Sidelink carrier aggregation scenario can be solved.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a sidelink communication method and apparatus. Background Technology

[0002] To support direct communication between terminals, a direct communication method (also called sidelink, SL) was introduced, with the PC-5 interface between terminals. New Radio (NR) Sidelink supports carrier aggregation, but currently lacks an effective means to perform LCP (Logical Channel Prioritization) in NR Sidelink carrier aggregation scenarios. Summary of the Invention

[0003] This disclosure presents a side-link communication method and apparatus.

[0004] According to a first aspect of the embodiments of this disclosure, a side-link communication method is proposed, comprising: For sidelink licensing, the terminal determines at least one carrier supported by the target address for SL data reception and / or transmission; Based on the carriers supported by the at least one target address for SL data reception and / or transmission, determine the first target address of the sidelink media access control protocol data unit (SL MAC PDU) transmitted by the terminal from the at least one target address, and / or determine the logical channel contained in the SL MAC PDU; The first target address supports SL data reception on the carrier associated with the side link authorization.

[0005] According to a second aspect of the embodiments of this disclosure, a side-link communication method is proposed, comprising: The network device sends first configuration information to the terminal, the first configuration information being used by the terminal to determine at least one carrier supported by a target address for SL data reception and / or transmission, so that the terminal determines a first target address of the sidelink Media Access Control Protocol Data Unit (SL MAC PDU) to be transmitted by the terminal based on the carrier supported by the at least one target address for SL data reception and / or transmission, and / or determines the logical channel contained in the SL MAC PDU; wherein, the first target address supports SL data reception on a carrier associated with a sidelink license.

[0006] According to a third aspect of the present disclosure, a first communication device is provided, comprising: The processing module is used to determine, for side link authorization, at least one carrier supported by a target address for SL data reception and / or transmission. The processing module is further configured to determine, based on the carriers supported by the at least one target address for receiving and / or transmitting SL data, a first target address for the sidelink media access control protocol data unit (SL MAC PDU) transmitted by the first communication device, and / or determine the logical channel contained in the SL MAC PDU; The first target address supports SL data reception on the carrier associated with the side link authorization.

[0007] According to a fourth aspect of the embodiments of this disclosure, a second communication device is provided, comprising: The transceiver module is configured to send first configuration information to the terminal. The first configuration information is used by the terminal to determine at least one carrier supported by a target address for receiving and / or transmitting SL data, so that the terminal determines a first target address of the sidelink Media Access Control Protocol Data Unit (SL MAC PDU) to be transmitted by the terminal based on the carrier supported by the at least one target address for receiving and / or transmitting SL data, and / or determines the logical channel contained in the SL MAC PDU; wherein the first target address supports SL data reception on a carrier associated with a sidelink license.

[0008] According to a fifth aspect of the embodiments of this disclosure, a communication system is provided, comprising: The terminal is configured to execute the optional implementation of the first aspect described above; The network device is configured to perform an optional implementation of the second aspect described above.

[0009] According to a sixth aspect of the present disclosure, a communication device is provided, comprising: one or more processors; The processor is used to invoke instructions to cause the communication device to execute the optional implementations of the first and second aspects mentioned above.

[0010] According to a seventh aspect of the present disclosure, a storage medium is provided that stores instructions which, when executed on a communication device, cause the communication device to perform optional implementations of the first and second aspects described above.

[0011] According to the technical solution disclosed herein, the problem of unclear impact of limited receiving terminal capabilities on the Logical Channel Priority (LCP) process in NR Sidelink carrier aggregation scenarios can be solved. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings required for the description of the embodiments are introduced below. The following drawings are only some embodiments of this disclosure and do not impose specific limitations on the protection scope of this disclosure.

[0013] Figure 1 This is a schematic diagram of the architecture of a communication system provided in an embodiment of this disclosure; Figure 2 This is an interactive schematic diagram of a side-link communication method according to an embodiment of the present disclosure; Figure 3A This is a schematic flowchart illustrating a side-link communication method according to an embodiment of the present disclosure; Figure 3B This is a schematic flowchart illustrating a side-link communication method according to an embodiment of the present disclosure; Figure 4A This is a flowchart illustrating a side-link communication method according to an embodiment of the present disclosure; Figure 5 This is an interactive schematic diagram of the side-link communication method proposed in the embodiments of this disclosure; Figure 6A This is a schematic diagram of the terminal structure proposed in the embodiments of this disclosure; Figure 6B This is a schematic diagram of the structure of the network device proposed in the embodiments of this disclosure; Figure 7A This is a schematic diagram of the structure of the communication device 7100 proposed in the embodiments of this disclosure; Figure 7B This is a schematic diagram of the structure of the chip 7200 proposed in the embodiments of this disclosure. Detailed Implementation

[0014] This disclosure presents a side-link communication method and apparatus.

[0015] In a first aspect, embodiments of this disclosure propose a side-link communication method, including: For sidelink licensing, the terminal determines at least one carrier supported by the target address for SL data reception and / or transmission; Based on the carriers supported by the at least one target address for SL data reception and / or transmission, determine the first target address of the sidelink media access control protocol data unit (SL MAC PDU) transmitted by the terminal from the at least one target address, and / or determine the logical channel contained in the SL MAC PDU; The first target address supports SL data reception on the carrier associated with the side link authorization.

[0016] In the above embodiments, during the LCP process, the limited receiving capabilities of the target address (i.e., which carriers(s) at the target address support SL data reception and / or transmission) are considered. This ensures that the selected target address supports SL data reception on carriers associated with the sidelink grant. This avoids the problem of degraded data transmission quality caused by not considering which carriers(s) at the target address support SL data reception and / or transmission during the LCP process. Thus, it can solve the problem of unclear impact of limited receiving terminal capabilities on the logical channel priority LCP process in NR Sidelink carrier aggregation scenarios, improve transmission rate, and ensure the transmission quality of the sidelink.

[0017] In conjunction with some embodiments of the first aspect, in some embodiments, the at least one target address includes a second target address, the service type associated with the second target address being a unicast service; the terminal determines a carrier supported by at least one target address for SL data reception and / or transmission, including: Receive capability information sent by the second target address, the capability information including carriers that support SL data reception and / or transmission; Based on the capability information and / or the first configuration information of the network device configuration, determine the carriers supported by the second target address for SL data reception and / or transmission, wherein the first configuration information includes a list of carriers supported by the terminal.

[0018] In the above embodiments, for unicast services, the terminal can interact with the receiving terminal associated with the unicast service to determine the carriers supported by the receiving terminal for SL data reception and / or transmission based on the terminal capabilities and the configuration information of the network device. This facilitates the terminal to perform the LCP process based on the carriers supported by the receiving terminal for SL data reception and / or transmission, thereby ensuring the transmission quality of the side link while also improving the transmission rate.

[0019] In conjunction with some embodiments of the first aspect, in some embodiments, determining the carriers supported by the second target address for SL data reception and / or transmission based on the capability information and / or the first configuration information configured by the network device includes: Based on the first configuration information configured in the network device, a list of carriers supported by the terminal is determined; Based on the intersection of the capability information and the list of carriers supported by the terminal, the carriers supported by the second target address for SL data reception and / or transmission are determined.

[0020] In conjunction with some embodiments of the first aspect, in some embodiments, the at least one target address includes a third target address, and the service type associated with the third target address is a multicast service or a broadcast service; The terminal determines at least one carrier supported by the target address for SL data reception and / or transmission, including: Based on the first configuration information of the network device configuration and / or the second configuration information of the higher layer configuration, determine the carriers supported by the third target address for SL data reception and / or transmission.

[0021] In the above embodiments, for broadcast or multicast services, higher layers and / or network devices can be relied upon to determine which service is of interest and receive data only on the carrier associated with the service of interest, thereby improving the transmission rate while ensuring the transmission quality of the side link.

[0022] In conjunction with some embodiments of the first aspect, in some embodiments, determining the carriers supported by the third target address for SL data reception and / or transmission based on the first configuration information and / or the second configuration information of the higher-layer configuration includes: Based on the second configuration information, the mapping relationship from the first service to the carrier and / or the mapping relationship from the first service to the third target address are determined, wherein the first service includes multicast service and / or broadcast service; Based on the mapping relationship from the first service to the carrier and / or the mapping relationship from the first service to the third target address, determine the mapping relationship from the third target address to the carrier; Based on the mapping relationship between the third target address and the carrier, determine the carriers supported by the third target address for SL data reception and / or transmission.

[0023] In conjunction with some embodiments of the first aspect, in some embodiments, determining the carriers supported by the third target address for SL data reception and / or transmission based on the first configuration information and / or the second configuration information of the higher-layer configuration includes: Based on the intersection of the first configuration information and the second configuration information, the carriers supported by the third target address for receiving data are determined.

[0024] In conjunction with some embodiments of the first aspect, in some embodiments, the first configuration information is included in the System Information Block (SIB) or pre-configuration information.

[0025] In conjunction with some embodiments of the first aspect, in some embodiments, determining the first target address of the sidelink media access control protocol data unit (SL MAC PDU) transmitted by the terminal from the at least one target address based on a carrier supported by the at least one target address for SL data reception and / or transmission includes: Based on the carriers supported by the at least one target address for SL data reception and / or transmission and / or the first condition, a first target address for the SL MAC PDU transmitted by the terminal is determined from the at least one target address.

[0026] In the above embodiments, in the NR Sidelink carrier aggregation scenario, by combining the carrier capability of the receiving terminal and / or selecting the target address under the first condition, the problem that the limited receiving terminal capability has an unclear impact on the logical channel priority (LCP) process in the NR Sidelink carrier aggregation scenario can be solved, thereby improving the transmission rate and ensuring the transmission quality of the sidelink.

[0027] In conjunction with some embodiments of the first aspect, in some embodiments, the first condition includes any one or more of the following: The discontinuous reception SL DRX of the sidelink is applicable to the first target address, the sidelink grant is during the activation time of the first target address, and the sidelink grant is used to send the SL MAC PDU; The first target address has at least one logical channel or MAC CE with the highest priority in at least one first logical channel and / or first media access control layer control unit MAC CE, wherein the first logical channel and / or the first MAC CE satisfies the second condition.

[0028] In conjunction with some embodiments of the first aspect, in some embodiments, the second condition includes any one or more of the following: It contains SL data waiting to be sent; The first logical channel has a token SBj in the side link transmission buffer, where SBj > 0; The sidelink grant is configuration grant type 1, and the Media Access Control Service Data Unit (MAC SDU) of the logical channel associated with the first logical channel is configured to allow transmission on the configuration grant type 1 sidelink configuration grant type 1 sl-configuredGrantType1Allowed parameter to the logical channel. A list of allowed configuration licenses is configured, which includes the configuration license identifier associated with the side-link license; The side link grant does not have associated physical side link feedback channel (PSFCH) resources, and the hybrid automatic repeat request (HARQ) attribute of the first logical channel is HARQ-disabled. It is configured to support transmission on carriers associated with the licensed side link.

[0029] In conjunction with some embodiments of the first aspect, in some embodiments, determining the logical channel included in the SL MAC PDU includes: Select a logical channel that satisfies the third condition from the logical channels belonging to the first target address; The logical channel that satisfies the third condition is multiplexed into the SL MAC PDU.

[0030] In conjunction with some embodiments of the first aspect, in some embodiments, the third condition includes any one or more of the following: 1) The selected logical channel has SL data that can be transmitted; and, 2) The sl-configuredGrantType1Allowed parameter of the selected logical channel is configured, and when the side-link grant is the configured grant type 1, the sl-configuredGrantType1Allowed parameter is set to true; and, 3) The allowed sidelink uplink unlicensed list SL-allowedcg-list for the selected logical channel is configured, wherein the SL-allowedcg-list includes a configuration license index associated with the sidelink license; and, 4) The selected logical channel's side-link hybrid automatic repeat request feedback enable (sl-HARQ-FeedbackEnabled) is set to a value that satisfies the following conditions: A) The sidechain authorization associated with the sidelink control information (SCI) is configured with a PSFCH, and the terminal receives the PSFCH: I) If the highest priority logical channel among at least one selected logical channel has its sl-HARQ-FeedbackEnabled enabled, then the next selected logical channel also has its sl-HARQ-FeedbackEnabled enabled; or... II) The sl-HARQ-FeedbackEnabled corresponding to the highest priority logical channel among at least one selected logical channel is set to disabled, and the sl-HARQ-FeedbackEnabled of the next selected logical channel is also disabled; B) The sidechain license associated with SCI is not configured with PSFCH, and / or the terminal does not receive PSFCH: The selected logical channel's sl-HARQ-FeedbackEnabled is set to disabled; 5) Configured to support transmission on carriers associated with the licensed side link.

[0031] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: Send sidelink control information (SCI) to the first target address; wherein... The carrier associated with the sidelink grant is the carrier in which the SCI transmission is located, or the carrier associated with the sidelink grant is the carrier in which the Physical Sidelink Shared Channel (PSSCH) indicated by the SCI is located.

[0032] Secondly, embodiments of this disclosure propose a side-link communication method, including: The network device sends first configuration information to the terminal, the first configuration information being used by the terminal to determine at least one carrier supported by a target address for SL data reception and / or transmission, so that the terminal determines a first target address of the sidelink Media Access Control Protocol Data Unit (SL MAC PDU) to be transmitted by the terminal based on the carrier supported by the at least one target address for SL data reception and / or transmission, and / or determines the logical channel contained in the SL MAC PDU; wherein, the first target address supports SL data reception on a carrier associated with a sidelink license.

[0033] Thirdly, embodiments of this disclosure provide a terminal, including at least one of a transceiver module and a processing module; wherein the terminal is used to execute an optional implementation of the first aspect.

[0034] Fourthly, embodiments of this disclosure provide a network device, including at least one of a transceiver module and a processing module; wherein the network device is used to execute an optional implementation of the second aspect.

[0035] Fifthly, embodiments of this disclosure provide a communication system, including: The terminal is configured as an optional implementation of the first aspect mentioned above; The network device is configured to perform an optional implementation of the second aspect described above.

[0036] In a sixth aspect, embodiments of this disclosure provide a communication device, comprising: one or more processors; wherein the processors are configured to invoke instructions to cause the communication device to perform an optional implementation of the first aspect described above.

[0037] In a seventh aspect, embodiments of this disclosure provide a communication device, comprising: one or more processors; wherein the processors are configured to invoke instructions to cause the communication device to perform an optional implementation of the second aspect described above.

[0038] Eighthly, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform optional implementations of the first and second aspects described above.

[0039] Ninthly, embodiments of this disclosure provide a program product that, when executed by a communication device, causes the communication device to perform the method as described in the optional implementations of the first and second aspects.

[0040] In a tenth aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the methods described in alternative implementations of the first and second aspects.

[0041] Eleventhly, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the methods described according to optional implementations of the first and second aspects above.

[0042] It is understood that the aforementioned terminals, network devices, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0043] This disclosure provides a sidelink communication method and apparatus. In some embodiments, terms such as sidelink communication method, information processing method, and communication method can be used interchangeably; terms such as sidelink communication apparatus, information processing apparatus, and communication apparatus can be used interchangeably; and terms such as sidelink communication system, information processing system, and communication system can be used interchangeably.

[0044] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0045] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0046] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0047] In this disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular or a plural expression.

[0048] In the embodiments disclosed herein, "multiple" refers to two or more.

[0049] In some embodiments, the terms “at least one of,” “one or more,” “a plurality of,” and “multiple” may be used interchangeably.

[0050] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (executes A regardless of B); in some embodiments, B (executes B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, both A and B are executed. The same applies when there are more branches such as A, B, C, etc.

[0051] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execution of A regardless of B); in some embodiments, B (execution of B regardless of A); in some embodiments, selective execution from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, and C.

[0052] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0053] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0054] In some embodiments, terms such as "time / frequency" and "time-frequency domain" refer to the time domain and / or frequency domain.

[0055] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0056] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0057] In some embodiments, the apparatus and device may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "body", etc.

[0058] In some embodiments, "network" can be interpreted as devices included in the network, such as access network devices, core network devices, etc.

[0059] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)," "base station (BS)," "radio base station," or "fixed station." In some embodiments, it may also be understood as "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission and / or reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cellgroup," "serving cell," "carrier," "component carrier," or "bandwidth part (BWP)," etc.

[0060] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)," "user terminal," "mobile station (MS)," "mobile terminal (MT)," "subscriber station," "mobile unit," "subscriber unit," "wireless unit," "remote unit," "mobile device," "wireless device," "wireless communication device," "remote device," "mobile subscriber station," "access terminal," "mobile terminal," "wireless terminal," "remote terminal," "handset," "user agent," "mobile client," "client," etc.

[0061] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0062] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0063] Figure 1 This is a schematic diagram of the architecture of a communication system according to an embodiment of this disclosure. The communication system may include, but is not limited to, a terminal and a network device. Figure 1 The number and form of devices shown are for illustrative purposes only and do not constitute a limitation on the embodiments of this disclosure. In actual applications, two or more terminals or two or more network device terminals may be included. Figure 1 The communication system 100 shown is exemplified by including a terminal 101 and a network device 102.

[0064] In some embodiments, the terminal 101 described herein can be a user-side entity used for receiving or transmitting signals, such as a mobile phone. It can also be referred to as a terminal, user equipment (UE), mobile station (MS), mobile terminal (MT), etc. The terminal can be at least one of the following: a car with communication capabilities, a smart car, a mobile phone, a wearable device, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. The embodiments of this disclosure do not limit the specific technology or device form used in the terminal.

[0065] In some embodiments, network device 102 may be an access network device. In some embodiments, the access network device may be, for example, a node or device that connects a terminal to a wireless network. The access network device may include, but is not limited to, at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), radio backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system.

[0066] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0067] In some embodiments, the access network device may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure can separate the protocol layer of the access network device. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.

[0068] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions proposed in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions proposed in this disclosure are also applicable to similar technical problems.

[0069] The following embodiments of this disclosure can be applied to Figure 1 The communication system 100 shown, or a part thereof, but not limited to it. Figure 1 The entities shown are illustrative; a communication system may include... Figure 1 All or part of the main body, or may include Figure 1 Other entities besides the main body, the number and form of each entity are arbitrary, each entity can be physical or virtual, the connection relationship between the entities is illustrative, the entities can be unconnected or connected, and the connection can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection.

[0070] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Futuregeneration radio access (FX), Global System for Mobile communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0071] In some embodiments, the link for direct communication between terminals is a PC-5 interface. Based on the correspondence between the sending and receiving terminals, three transmission modes are supported on the Sidelink: unicast, multicast, and broadcast. The sending terminal transmits Sidelink Control Information (SCI) on the Physical Sidelink Control Channel (PSCCH) and a second-stage SCI on the Physical Sidelink Shared Channel (PSSCH), which carries the resource location of the transmitted data and source and destination identifiers. For packets with Hybrid Automatic Repeat Request (HARQ) feedback enabled, the receiving terminal provides Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) feedback to the PSSCH on the Physical Sidelink Feedback Channel (PSFCH).

[0072] In some embodiments, Sidelink communication employs two transmission resource allocation methods: dynamic scheduling by the network (mode 1) and autonomous selection by the terminal from a network-configured or pre-configured resource pool (mode 2). Dynamic scheduling involves the network dynamically allocating transmission resources on the Sidelink to the terminal based on the terminal's reported cached data. Autonomous selection allows the terminal to randomly select transmission resources from the network-configured or pre-configured resource pool. The network can configure multiple resource pools for a single BWP (Bandwidth Part). The specific allocation method used is configured by the network side via RRC (Radio Resource Control) signaling.

[0073] Carrier aggregation is a key technology in LTE-A. To meet the requirements of increased peak data rates for single users and improved system capacity, one of the most direct methods is to increase the system transmission bandwidth. Therefore, LTE-Advanced systems introduce a technology to increase transmission bandwidth, namely CA (Carrier Aggregation). CA technology can aggregate multiple carriers (Component Carriers, CCs) together, effectively improving uplink and downlink transmission rates. Optionally, each carrier participating in carrier aggregation can also be called a component carrier (CC).

[0074] In some embodiments, the multiplexing function of the transmitting terminal's MAC (Media Access Control) layer loads data from multiple logical channels into a single transport channel, that is, multiple MAC SDUs (MAC Service Data Units) are multiplexed into a single MAC PDU (MAC Protocol Data Unit), which is then transmitted through the physical layer channel. When multiple logical channels are transmitting data, and the total data volume exceeds the currently authorized transmission capacity, the question arises of which logical channel should be prioritized for transmission; this is called Logical Channel Prioritization (LCP). Each logical channel has a priority for logical channel scheduling, which is configured by the network based on the QoS (Quality of Service) of the data carried by the logical channel. When the terminal receives a scheduling opportunity, i.e., obtains the resource for sidelink data transmission on a certain carrier, the terminal first selects a target address, and then selects an SL LCH (Sidelink Logical Channel) belonging to the target address and meeting certain conditions, multiplexing it into an SL MAC PDU (Sidelink MAC Protocol Data Unit).

[0075] In some embodiments, for broadcast and / or multicast services, the NR (New Radio) Sidelink provides the AS (access stratum) layer with a mapping from service to frequency, and a mapping from service to destination L2 ID. The AS layer can then use these two mappings to determine the mapping from L2 ID to frequency.

[0076] In some embodiments, the network device can be configured to provide a list of frequencies supported by the terminal. In carrier aggregation scenarios, this list may include one or more entries, each entry associated with a frequency.

[0077] In some embodiments, for a target Layer 2 address, the terminal determines the available frequency (carrier / band) by the intersection of the higher-layer configuration and the network configuration.

[0078] LTE V2X already supports sidelink carrier aggregation technology. Due to limitations in transmission and reception capabilities, receiving terminals may only be able to receive sidelink services on one or a few carriers. Similarly, transmitting terminals may only be able to transmit sidelink services on one or a few carriers due to limitations in transmission capabilities. LTE V2X does not introduce any carrier selection / reselection enhancement schemes to address the limited transmission / reception capabilities of terminals. The reason is that LTE V2X only supports broadcast services, and can rely on higher layers to determine which service is of interest and receive data only on the carriers associated with the service of interest.

[0079] NR sidelink also supports carrier aggregation. In related technologies, under NR sidelink carrier aggregation scenarios, the default is that terminals supporting carrier aggregation can transmit and receive on all carriers. However, this approach does not consider the limited capabilities of terminals, meaning that the impact of limited receiving terminal capabilities on the LCP process is unclear, which may lead to a deterioration in data transmission quality.

[0080] Therefore, this disclosure provides a sidelink communication method and apparatus that can solve the problem of unclear impact of limited receiving terminal capabilities on the LCP process, improve transmission rate, and ensure data transmission quality.

[0081] Figure 2 This is an interactive schematic diagram of a side-link communication method according to an embodiment of this disclosure. For example... Figure 2 As shown, the information processing method disclosed in this embodiment can be applied to the communication system 100, and the above method includes, but is not limited to, the following steps.

[0082] In step S2101, network device 102 sends the first configuration information.

[0083] In some embodiments, network device 102 sends first configuration information to terminal 101. Optionally, terminal 101 obtains the first configuration information configured by network device 102.

[0084] In some embodiments, terminal 101 can obtain the first configuration information configured by network device 102 through dedicated RRC signaling. For example, when terminal 101 is in RRC connected state, terminal 101 can obtain the first configuration information configured by network device 102 through dedicated RRC signaling. The sidelink transmission resource allocation method of terminal 101 can be a network dynamic scheduling allocation method (such as mode 1 above), or it can be a terminal-selected allocation method (such as mode 2 above).

[0085] In some embodiments, the first configuration information is contained in a SIB (System Information Block). For example, the first configuration information may be contained in SIB12, and terminal 101 can obtain the first configuration information configured by network device 102 through the SIB. For example, terminal 101 may be in RRC connected state (RRC_CONNECTED), RRC idle state (RRC_IDLE), or RRC inactive state (RRC_INACTIVE), and terminal 101 can obtain the first configuration information configured by network device 102 through the SIB. Optionally, the side-link transmission resource allocation method of terminal 101 may be a network dynamic scheduling allocation method (such as mode 1 above) or a terminal-selected allocation method (such as mode 2 above).

[0086] In some embodiments, the first configuration information is included in the pre-configuration information, and the terminal 101 can obtain the first configuration information configured by the network device 102 through the pre-configuration information. For example, when the terminal 101 is in an OOC (Out Of Coverage) state, the terminal 101 obtains the first configuration information configured by the network device 102 through the pre-configuration information. Optionally, the side-link transmission resource allocation method of the terminal 101 can be a network dynamic scheduling allocation method (such as mode 1 described above).

[0087] In some embodiments, the first configuration information includes a frequency band / carrier list containing at least one frequency band / carrier. In some embodiments, the first configuration information is used by terminal 101 to determine the frequency band / carrier used for sidelink communication. For example, the first configuration information is used by terminal 101 to determine the frequency band / carrier for sidelink communication transmission and / or reception. For example, terminal 101 determines a first target address of the SL MAC PDU transmitted by terminal 101 based on carriers supported by at least one target address for SL data reception and / or transmission, and / or determines the logical channel contained in the SL MAC PDU. The first target address supports SL data reception on carriers associated with sidelink licenses.

[0088] In some embodiments, the terms "carrier", "band", "frequency", and "frequency" can be used interchangeably.

[0089] In some embodiments, the carrier list described above may also be referred to as a carrier set. For example, network device 102 is configured to support one or more carriers, which can be described as a list or a set.

[0090] In some embodiments, at least one target address includes a second target address, the service type associated with the second target address being a unicast service. In some embodiments, at least one target address includes a third target address, the service type associated with the third target address being a multicast service and / or a broadcast service.

[0091] Optionally, the aforementioned target address can be understood as a target address that has a service relationship with terminal 101. This target address may include a second target address with which terminal 101 has a unicast service; for example, the second target address can be any target address with a unicast connection to terminal 101. It may also include a third target address of broadcast and / or multicast services associated with terminal 101; for example, the third target address can be the target address of broadcast and / or multicast services that terminal 101 is interested in sending and / or receiving. In this case, when terminal 101 has data to send, it needs to perform an LCP process. During the LCP process, terminal 101 first needs to determine the first target address of the SL MAC PDU to be sent by terminal 101 and / or determine the logical channel contained in the SL MAC PDU from at least one target address.

[0092] In some embodiments, when performing the LCP process, the terminal 101 needs to combine the target address-restricted reception capability so that the selected target address supports SL data reception on the carrier associated with the sidelink license.

[0093] In step S2102, terminal 101 receives capability information sent by the second target address.

[0094] In some embodiments, the second target address sends capability information. Terminal 101 receives the capability information sent by the second target address.

[0095] In some embodiments, the second target address may be included among the at least one target address mentioned above. Optionally, the target address can be understood as a target address that has a service relationship with terminal 101, wherein the target address may include a second target address that has a unicast service with terminal 101. For example, the second target address can be any target address that has a unicast connection with terminal 101. In a unicast scenario, terminal 101 can interact with the second target address to exchange terminal capabilities, informing the peer of the carriers supported for SL data reception and / or transmission. For example, in a unicast scenario, terminal 101, as a transmitting terminal, can send its capability information to the second target address, informing the second target address of the carriers supported by terminal 101 for SL data reception and / or transmission. The second target address, as a receiving terminal, sends capability information to terminal 101, which may include carriers supporting SL data reception and / or transmission. Terminal 101 can determine the carriers supported by the second target address for SL data reception and / or transmission through the capability information sent by the second target address.

[0096] In some embodiments, terminal 101 can receive capability information sent by a second target address via sidelink information. For example, terminal 101 can receive capability information sent by a second target address via SCI.

[0097] In some embodiments, terminal 101 can obtain the capability information sent by the second target address via PC5-RRC signaling. Alternatively, it can receive the capability information sent by the second target address through other means, which are not specifically limited here and will not be elaborated further.

[0098] In step S2103, for sidelink authorization, terminal 101 determines at least one carrier supported by a target address for receiving and / or transmitting SL data. Exemplarily, terminal 101 determines at least one carrier supported by a target address for receiving and / or transmitting SL data. In this disclosure, a supported carrier for receiving and / or transmitting SL data can be understood as a carrier that supports receiving and / or transmitting SL data.

[0099] In some embodiments, the at least one target address may include a second target address, wherein the service type associated with the second target address is a unicast service. Optionally, the target address can be understood as a target address that has a service relationship with terminal 101, wherein the target address may include a second target address that has a unicast service with terminal 101. For example, the second target address may be any target address that has a unicast connection with terminal 101. For unicast service scenarios, during the LCP process, terminal 101 may determine the carriers supported by the second target address for SL data reception and / or transmission based on the capability information sent by the second target address and / or the first configuration information configured by the network device, wherein the first configuration information includes a list of carriers supported by the terminal. For unicast service scenarios, since terminal 101 can receive capability information sent by the second target address, and the network device can also configure a list of carriers supported by the terminal, terminal 101 can first combine the capability information sent by the second target address and / or the first configuration information configured by the network device to determine at least one carrier supported by the second target address for SL data reception and / or transmission. For example, it can determine whether the second target address supports receiving SL data on the carrier associated with the side link authorization.

[0100] For example, terminal 101 may determine the carriers supported by the second target address for receiving and / or transmitting SL data based on first configuration information configured by the network device. Alternatively, terminal 101 may determine the carriers supported by the second target address for receiving and / or transmitting SL data based on capability information transmitted by the second target address. Alternatively, terminal 101 may determine the carriers supported by the second target address for receiving and / or transmitting SL data based on the capability information transmitted by the second target address and the first configuration information configured by the network device, for example, determining whether the second target address supports receiving SL data on the carriers associated with the side link authorization.

[0101] In one possible implementation, the method by which terminal 101 determines the carriers supported by the second target address for SL data reception and / or transmission based on the capability information transmitted by the second target address and the first configuration information configured by the network device may include: terminal 101 determining a list of carriers supported for transmission and / or reception based on the first configuration information configured by the network device; and determining the carriers supported by the second target address for SL data reception and / or transmission based on the intersection of the capability information transmitted by the second target address and the list of carriers supported for transmission and / or reception by terminal 101. For example, if terminal 101 and terminal 103 have unicast services, taking the second target address as the address of terminal 103 as an example, terminal 101 can determine the list of carriers that terminal 101 supports for transmission and / or reception based on the first configuration information configured by network device 102, that is, including carriers that terminal 101 and / or terminal 103 support for SL data reception and / or transmission. Based on the intersection of the capability information transmitted by terminal 103 and the first configuration information configured by network device 102, terminal 101 determines the carriers supported by terminal 103 for SL data reception and / or transmission, that is, the carriers supported by the second target address for SL data reception and / or transmission. For example, it determines whether the second target address supports receiving SL data on the carriers associated with the side link authorization.

[0102] In another possible implementation, the terminal 101 determines the carriers supported by the second target address for SL data reception and / or transmission based on the capability information transmitted by the second target address. This can be achieved by the terminal 101 determining the carriers supported by the second target address for SL data reception and / or transmission based on the capability information transmitted by the second target address. For example, it can be determined whether the second target address supports receiving SL data on the carriers associated with the side link authorization.

[0103] In another possible implementation, the method by which terminal 101 determines the carriers supported by the second target address for SL data reception and / or transmission based on the first configuration information configured by the network device may include: terminal 101 determining the carriers supported by the second target address for SL data reception and / or transmission based on the first configuration information configured by the network device. For example, if terminal 101 and terminal 103 have a unicast service, taking the second target address as the address of terminal 103, terminal 101 can determine a list of carriers supported for transmission and / or reception based on the first configuration information configured by network device 102. This list includes carriers supported by terminal 101 and / or terminal 103 for SL data reception and / or transmission. Therefore, terminal 101 can determine the carriers supported by terminal 103 for SL data reception and / or transmission, i.e., the carriers supported by the second target address for SL data reception and / or transmission. For example, it can determine whether the second target address supports receiving SL data on the carriers associated with the side-link authorization.

[0104] In some embodiments, the at least one target address may include a second target address, and the service type associated with the second target address is a unicast service. Optionally, the target address can be understood as a target address that has a service relationship with terminal 101, wherein the target address may include a second target address that has a unicast service with terminal 101. For example, the second target address may be any target address that has a unicast connection with terminal 101. For a unicast service scenario, in the LCP process, terminal 101 may determine the carriers supported by the second target address for SL data reception and / or transmission based on at least one of the capability information sent by the second target address, the first configuration information configured by the network device, and the second configuration information configured by the higher layer, wherein the first configuration information includes a list of carriers supported by the terminal; the second configuration information includes a mapping relationship from the second service to the carrier and / or a mapping relationship from the second service to the second target address, wherein the second service is a unicast service. Based on the mapping relationship from the second service to the carrier and / or the mapping relationship from the second service to the second target address, a mapping relationship from the second target address to the carrier is determined; based on the mapping relationship from the second target address to the carrier, a carrier supported by the second target address for SL data reception and / or transmission is determined. Optionally, the carrier supported by the second target address for SL data transmission may refer to the carrier supported by the unicast service associated with the second target address transmitted by terminal 101. For example, it can be determined whether terminal 101 supports transmitting the unicast service associated with the second target address on the carrier associated with the side link license.

[0105] For example, in a unicast service scenario, during the LCP process, terminal 101 can determine the carriers supported by the second target address for receiving and / or transmitting SL data based on the first configuration information configured in the network device. Specifically, it can determine whether the second target address supports receiving SL data on the carrier associated with the side-link license and / or whether terminal 101 supports transmitting the unicast service associated with the second target address on the carrier associated with the side-link license. Alternatively, terminal 101 can determine the carriers supported by the second target address for receiving and / or transmitting SL data based on the capability information transmitted by the second target address. Specifically, it can determine whether the second target address supports receiving SL data on the carrier associated with the side-link license and / or whether terminal 101 supports transmitting the unicast service associated with the second target address on the carrier associated with the side-link license. Alternatively, terminal 101, based on the capability information transmitted by the second target address and the first configuration information configured by the network device, determines the carriers supported by the second target address for receiving and / or transmitting SL data. For example, it determines whether the second target address supports receiving SL data on the carrier associated with the side-link license and / or whether terminal 101 supports transmitting unicast services associated with the second target address on the carrier associated with the side-link license. Alternatively, terminal 101 may, based on the second configuration information configured by a higher layer, determine the carriers supported by the second target address for receiving and / or transmitting SL data. For example, it determines whether the second target address supports receiving SL data on the carrier associated with the side-link license and / or whether terminal 101 supports transmitting unicast services associated with the second target address on the carrier associated with the side-link license. Alternatively, terminal 101 can determine the carriers supported by the second target address for receiving and / or transmitting SL data based on the capability information transmitted by the second target address and the second configuration information configured by higher layers. For example, it can determine whether the second target address supports receiving SL data on the carrier associated with the side-link license and / or whether terminal 101 supports transmitting unicast services associated with the second target address on the carrier associated with the side-link license. Alternatively, terminal 101 can determine the carriers supported by the second target address for receiving and / or transmitting SL data based on the first configuration information configured by the network device and the second configuration information configured by higher layers. For example, it can determine whether the second target address supports receiving SL data on the carrier associated with the side-link license and / or whether terminal 101 supports transmitting unicast services associated with the second target address on the carrier associated with the side-link license.Alternatively, based on the capability information sent by the second target address, the first configuration information of the network device configuration, and the second configuration information of the higher layer configuration, the terminal 101 determines the carriers supported by the second target address for receiving and / or transmitting SL data. For example, it determines whether the second target address supports receiving SL data on the carrier associated with the side link license and / or whether the terminal 101 supports transmitting unicast services associated with the second target address on the carrier associated with the side link license.

[0106] In some embodiments, at least one target address includes a third target address, and the service type associated with the third target address is a multicast service or a broadcast service. Terminal 101 determines the carriers supported by the third target address for SL data reception and / or transmission based on first configuration information configured by the network device and / or second configuration information configured by higher layers (such as the V2X layer). For example, it determines whether the third target address supports receiving SL data on the carriers associated with the side-link license. Optionally, the aforementioned target address can be understood as a target address with a service relationship to terminal 101, wherein the target address may include a third target address of a broadcast and / or multicast service associated with terminal 101. For example, terminal 101 is interested in sending and / or receiving a third target address of a broadcast and / or multicast service. For broadcast and / or multicast service scenarios, during the LCP process, terminal 101 can determine the carriers supported by the third target address for SL data reception and / or transmission based on the first configuration information configured by the network device and / or the second configuration information configured by higher layers. The first configuration information includes a list of carriers supported by the terminal; the second configuration information includes the mapping relationship between the first service and the carrier and / or the mapping relationship between the first service and the third target address. Specifically, the carriers supported by the third target address for receiving and / or transmitting SL data refer to the carriers for broadcast and / or multicast services associated with the third target address transmitted by the terminal 101, and / or the carriers for broadcast and / or multicast services associated with the third target address received by the terminal 101.

[0107] For example, terminal 101 may determine, based on second configuration information configured at higher layers, the carriers supported by the third target address for receiving and / or transmitting SL data. For example, it may determine whether the third target address supports receiving SL data on the carriers associated with the sidelink license and / or whether terminal 101 supports transmitting broadcast / multicast services associated with the third target address on the carriers associated with the sidelink license. Alternatively, terminal 101 may determine, based on first configuration information configured at the network device, the carriers supported by the third target address for receiving and / or transmitting SL data. For example, it may determine whether the third target address supports receiving SL data on the carriers associated with the sidelink license and / or whether terminal 101 supports transmitting broadcast / multicast services associated with the third target address on the carriers associated with the sidelink license. Alternatively, terminal 101 may determine the carriers supported by the third target address for receiving and / or transmitting SL data based on the first configuration information of the network device configuration and the second configuration information of the higher layer configuration. For example, it may determine whether the third target address supports receiving SL data on the carrier associated with the side link license and / or whether terminal 101 supports transmitting broadcast / multicast services associated with the third target address on the carrier associated with the side link license.

[0108] In one implementation, the method by which terminal 101 determines the carriers supported by the third target address for SL data reception and / or transmission based on second configuration information configured at higher layers may include: terminal 101 determining a mapping relationship between a first service and a carrier and / or a mapping relationship between the first service and the third target address based on the second configuration information, wherein the first service includes multicast services and / or broadcast services; determining a mapping relationship between the third target address and a carrier based on the mapping relationship between the first service and the carrier and / or the mapping relationship between the first service and the third target address; and determining the carriers supported by the third target address for SL data reception and / or transmission based on the mapping relationship between the third target address and the carrier. For example, determining whether the third target address supports receiving SL data on the carrier associated with the side-link license and / or whether terminal 101 supports transmitting broadcast / multicast services associated with the third target address on the carrier associated with the side-link license.

[0109] For example, the higher layers of terminal 101 can provide a mapping relationship from the first service to the carrier, and the higher layers of terminal 101 can also provide a mapping relationship from the first service to the third target address. Terminal 101 can determine the mapping relationship from the third target address to the carrier based on the mapping relationship from the first service to the carrier and the mapping relationship from the first service to the third target address, thereby determining the carriers supported by the third target address for SL data reception and / or transmission. For example, it can determine whether the third target address supports receiving SL data on the carrier associated with the side-link license and / or whether terminal 101 supports transmitting broadcast / multicast services associated with the third target address on the carrier associated with the side-link license.

[0110] In another implementation, the method by which terminal 101 determines the carriers supported by the third target address for receiving and / or transmitting SL data based on the first configuration information of the network device configuration and the second configuration information of the higher layer configuration may include: terminal 101 determining the carriers supported by the third target address for receiving and / or transmitting data based on the intersection of the first and second configuration information. For example, determining whether the third target address supports receiving SL data on the carriers associated with the side-link license and / or whether terminal 101 supports transmitting broadcast / multicast services associated with the third target address on the carriers associated with the side-link license. For instance, based on the first configuration information of the network device configuration, terminal 101 determines that the carrier list supported by terminal 101 for receiving and / or transmitting SL data is carrier 1 and carrier 2; based on the second configuration information of the higher layer configuration, it determines that the carriers supported by the third target address for receiving and / or transmitting SL data are carrier 1, carrier 2, and carrier 3; terminal 101 may determine that the carriers supported by the third target address for receiving and / or transmitting SL data are carrier 1 and carrier 2 based on the intersection of the first configuration information of the network device configuration and the second configuration information of the higher layer configuration. Therefore, in the LCP process, considering the selection of the target address of the SL MAC PDU in conjunction with the limited transmit and / or receive capabilities can solve the problem that the impact of limited transmit and / or receive capabilities on the LCP process is unclear in NRsidelink carrier aggregation scenarios.

[0111] In step S2104, terminal 101 determines the first target address of the SL MAC PDU sent by terminal 101 from the at least one target address based on the carriers supported by the at least one target address for receiving and / or transmitting SL data, and / or determines the logical channel contained in the SL MAC PDU.

[0112] In some embodiments, the first target address supports SL data reception on the carrier associated with the sidelink license.

[0113] In some embodiments, the first target address satisfies the first condition.

[0114] In some embodiments, the first target address supports SL data reception on the carrier associated with the sidelink license and the first target address satisfies a first condition.

[0115] In some embodiments, the first condition described above may include any one or more of the following: Condition a: The discontinuous reception of SL DRX on the side link is applicable to the first target address, the side link grant is in the active time of the first target address, and the side link grant is used to send SL MAC PDU; Condition b: The first target address has at least one logical channel or MAC CE with the highest priority in at least one first logical channel and / or first media access control layer control unit MAC CE, wherein the first logical channel and / or first MAC CE satisfies the second condition.

[0116] Optionally, in some embodiments, the second condition described above includes any one or more of the following: It contains SL data waiting to be sent; The first logical channel has SBj (the token of the side link transmit buffer), SBj>0; Sidelink grant is configured grant type 1, and the first logical channel is associated with the allow sl-configuredGrantType1Allowed parameter configuration, which allows the MACSDU of the logical channel to be transmitted on the configured grant type 1. A list of allowed configuration licenses is configured, which includes configuration license identifiers associated with sidelink licenses; The side link grant has no associated PSFCH resources, and the HARQ attribute of the first logical channel is HARQ-disabled. It is configured to support transmission on the carriers associated with the aforementioned sidelink authorization.

[0117] For example, based on the second configuration information described above in the higher-level configuration, it can be determined whether terminal 101 supports transmitting SL data associated with the first destination address on the carrier associated with the side-link license. For example, the first destination address can be a destination address among the second destination addresses associated with unicast services, or it can be a destination address among the third destination addresses associated with broadcast / multicast services.

[0118] For example, based on the first configuration information of the network device described above, it can be determined whether terminal 101 supports transmitting SL data associated with the first destination address on the carrier associated with the side link license. The first destination address can be one of the destination addresses associated with a second destination address for unicast services, or it can be one of the destination addresses associated with a third destination address for broadcast / multicast services.

[0119] For example, based on the first configuration information of the network device and the second configuration information of the higher layer configuration, it can be determined whether the terminal 101 supports transmitting SL data associated with the first destination address on the carrier associated with the side link license. The first destination address can be a destination address among the second destination addresses associated with unicast services, or it can be a destination address among the third destination addresses associated with broadcast / multicast services.

[0120] In some embodiments, terminal 101 may determine the first target address of the SL MAC PDU transmitted by the terminal from at least one target address based on a carrier supported by at least one target address for SL data reception and / or transmission and / or the aforementioned first condition. For example, terminal 101 may determine the first target address of the SL MAC PDU transmitted by the terminal from at least one target address based on a carrier supported by at least one target address for SL data reception and / or transmission and the aforementioned first condition.

[0121] In other words, terminal 101 can select a first target address of SL MAC PDU from at least one target address based on the first condition and a carrier supported by at least one target address for SL data reception and / or transmission. The selected first target address satisfies the first condition and has at least one logical channel or MAC CE with the highest priority among the logical channels and / or media access control layer control unit MAC CEs that satisfy the second condition.

[0122] In some embodiments, the implementation of the logical channel contained in the SL MAC PDU by the terminal 101 may include: the terminal 101 selecting a logical channel that satisfies a third condition from the logical channels belonging to the first target address; and multiplexing the logical channel that satisfies the third condition into the SL MAC PDU.

[0123] Optionally, in some embodiments, the third condition above includes any one or more of the following: 1) The selected logical channel has SL data that can be transmitted; and, 2) The sl-configuredGrantType1Allowed parameter of the selected logical channel is configured. If the side-link grant is configured with grant type 1, the sl-configuredGrantType1Allowed parameter is set to true; and, 3) The allowed sidelink uplink unlicensed list (SL-allowedcg-list) for the selected logical channel is configured, and SL-allowedcg-list includes a configuration license index associated with the sidelink license; and, 4) Set the side-link hybrid automatic repeat request feedback enable (sl-HARQ-FeedbackEnabled) of the selected logical channel to a value that meets the following conditions: A) The sidechain authorization associated with the sidelink control information (SCI) is configured with PSFCH, and the terminal receives the PSFCH: I) If the highest priority logical channel among at least one selected logical channel has its sl-HARQ-FeedbackEnabled enabled, then the next selected logical channel also has its sl-HARQ-FeedbackEnabled enabled; or... II) The sl-HARQ-FeedbackEnabled corresponding to the highest priority logical channel among at least one selected logical channel is set to disabled, and the sl-HARQ-FeedbackEnabled of the next selected logical channel is also disabled; B) The sidechain license associated with SCI is not configured with PSFCH, and / or the terminal does not receive PSFCH: The selected logical channel's sl-HARQ-FeedbackEnabled is set to disabled; 5. It is configured to support transmission on the carrier / frequency associated with the SL grant (if configured).

[0124] For example, based on the second configuration information described above in the higher-level configuration, it can be determined whether terminal 101 supports transmitting SL data associated with the first destination address on the carrier associated with the side-link license. For example, the first destination address can be a destination address among the second destination addresses associated with unicast services, or it can be a destination address among the third destination addresses associated with broadcast / multicast services.

[0125] For example, based on the first configuration information of the network device described above, it can be determined whether terminal 101 supports transmitting SL data associated with the first destination address on the carrier associated with the side link license. The first destination address can be one of the destination addresses associated with a second destination address for unicast services, or it can be one of the destination addresses associated with a third destination address for broadcast / multicast services.

[0126] For example, based on the first configuration information of the network device and the second configuration information of the higher layer configuration, it can be determined whether the terminal 101 supports transmitting SL data associated with the first destination address on the carrier associated with the side link license. The first destination address can be a destination address among the second destination addresses associated with unicast services, or it can be a destination address among the third destination addresses associated with broadcast / multicast services.

[0127] In other words, terminal 101 can select a first target address for the SL MAC PDU from at least one target address based on the first condition and carriers supported by at least one target address for SL data reception and / or transmission. It can also select a logical channel satisfying the third condition from logical channels belonging to the first target address, and multiplex the logical channel satisfying the third condition into the SL MAC PDU to complete the packetization of the SL MAC PDU. Optionally, terminal 101 can transmit the SL MAC PDU on a carrier associated with a sidelink license. The target receiving terminal of the SL MAC PDU (i.e., the first target address) can receive the SL MAC PDU on a carrier associated with a sidelink license.

[0128] In step S2105, terminal 101 sends SCI to the aforementioned first target address.

[0129] In some embodiments, the carrier associated with the sidelink grant is the carrier where the SCI transmission is located, or the carrier associated with the sidelink grant is the carrier where the PSSCH indicated by the SCI is located.

[0130] For example, in the case of non-cross-carrier scheduling, the carrier associated with the sidelink grant is the carrier on which the SCI transmission is located.

[0131] For example, in the case of cross-carrier scheduling, the carrier associated with the sidelink grant is the carrier on which the PSSCH indicated by the SCI is located.

[0132] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0133] In some embodiments, the terms "uplink", "uplink", and "physical uplink" can be used interchangeably, as can the terms "downlink", "downlink", and "physical downlink", as well as the terms "sidelink", "sidelink", "sidelink communication", "sidelink communication", "direct connection", "direct link", "direct communication", and "direct link communication".

[0134] In some embodiments, “get,” “obtain,” “receive,” “transmit,” “bidirectional transmission,” and “send and / or receive” can be used interchangeably and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining through self-processing, or autonomous implementation, among other meanings.

[0135] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transfer,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0136] In some embodiments, terms such as "certain", "preset", "default", "set", "indicated", "a certain", "any", and "first" can be used interchangeably. "Certain A", "preset A", "default A", "set A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.

[0137] In some embodiments, the determination or judgment can be made by a value represented by 1 bit (0 or 1), or by a true or false value (boolean), or by a comparison of numerical values ​​(e.g., a comparison with a predetermined value), but is not limited thereto.

[0138] The method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2105. For example, step S2103 + step S2104 can be implemented as an independent embodiment, step S2101 + step S2103 + step S2104 can be implemented as an independent embodiment, step S2102 + step S2103 + step S2104 can be implemented as an independent embodiment, step S2101 + step S2102 + step S2103 + step S2104 can be implemented as an independent embodiment, and step S2103 + step S2104 + step S2105 can be implemented as an independent embodiment. Step S2105 can be implemented as an independent embodiment, and steps S2101+S2103+S2104+S2105 can be implemented as an independent embodiment, as can steps S2102+S2103+S2104+S2105, as can steps S2101+S2102+S2103+S2104+S2105, but are not limited thereto.

[0139] In some embodiments, steps S2101 and S2102 may be performed in an alternate order or simultaneously.

[0140] In some embodiments, steps S2101, S2102, and S2105 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0141] In some embodiments, steps S2102 and S2105 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0142] In some embodiments, steps S2101 and S2105 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0143] In some embodiments, step S2105 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0144] In some embodiments, steps S2101 and S2102 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0145] In some embodiments, step S2101 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0146] In some embodiments, step S2102 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0147] In some embodiments, see Figure 2 Other optional implementation methods described before or after the corresponding instruction manual.

[0148] Figure 3A This is a schematic flowchart illustrating a side-link communication method according to an embodiment of this disclosure. Figure 3A As shown, the embodiments of this disclosure relate to a side link communication method, which can be executed by terminal 101, and the above method may include, but is not limited to, the following steps.

[0149] Step S3101: Receive the first configuration information.

[0150] In some embodiments, terminal 101 receives first configuration information sent by network device 102. Optionally, network device 102 sends the first configuration information, and terminal 101 receives the first configuration information sent by network device 102.

[0151] In some embodiments, the aforementioned first configuration information is contained in a SIB (System Information Block), and terminal 101 can obtain the first configuration information configured by network device 102 through the SIB. For example, when terminal 101 is in an RRC idle state (RRC_IDLE) / RRC inactive state (RRC_INACTIVE), terminal 101 obtains the first configuration information configured by network device 102 through the SIB. Optionally, the side-link transmission resource allocation method of terminal 101 can be a network dynamic scheduling allocation method (such as mode 1 described above).

[0152] In some embodiments, the first configuration information is included in the pre-configuration information, and the terminal 101 can obtain the first configuration information configured by the network device 102 through the pre-configuration information. For example, when the terminal 101 is in an OOC state, the terminal 101 obtains the first configuration information configured by the network device 102 through the pre-configuration information. Optionally, the side-link transmission resource allocation method of the terminal 101 can be a network dynamic scheduling allocation method (such as mode 1 described above).

[0153] In some embodiments, the first configuration information is used by terminal 101 to determine at least one carrier supported by a target address for SL data reception and / or transmission, so that terminal 101 determines a first target address of the SL MAC PDU transmitted by terminal 101 based on the carrier supported by at least one target address for SL data reception and / or transmission, and / or determines the logical channel contained in the SL MAC PDU. The first target address supports SL data reception on a carrier associated with a sidelink license.

[0154] For optional implementations of step S3101, please refer to [link / reference]. Figure 2 Optional implementation methods of step S2101, and Figure 2 Other related parts in the embodiments involved will not be described in detail here.

[0155] Step S3102: Receive capability information sent by the second target address.

[0156] In some embodiments, the capability information described above may include carriers that support SL data reception and / or transmission.

[0157] For optional implementations of step S3102, please refer to [link / reference]. Figure 2 Optional implementation methods of step S2102, and Figure 2 Other related parts in the embodiments involved will not be described in detail here.

[0158] Step S3103, for side link authorization, determine at least one carrier supported by the target address for SL data reception and / or transmission.

[0159] In some embodiments, the at least one target address may include a second target address, wherein the service type associated with the second target address is a unicast service. Terminal 101 may determine the carriers supported by the second target address for SL data reception and / or transmission based on the capability information transmitted by the second target address and / or the first configuration information configured by the network device. Optional implementations can be found in [reference needed]. Figure 2 Optional implementation methods of step S2103, and Figure 2 Other related parts in the embodiments involved will not be described in detail here.

[0160] In some embodiments, at least one target address includes a third target address, and the service type associated with the third target address is a multicast service or a broadcast service. Based on first configuration information configured by the network device and / or second configuration information configured by higher layers (such as the V2X layer), the carriers supported by the third target address for SL data reception and / or transmission are determined. Optional implementations can be found in [reference needed]. Figure 2 Optional implementation methods of step S2103, and Figure 2Other related parts in the embodiments involved will not be described in detail here.

[0161] Step S3104: Based on the carriers supported by the at least one target address for SL data reception and / or transmission, determine the first target address of the SL MAC PDU sent by terminal 101 from the at least one target address, and / or determine the logical channel contained in the SL MAC PDU.

[0162] For optional implementations of step S3104, please refer to [link / reference]. Figure 2 Optional implementation methods of step S2104, and Figure 2 Other related parts in the embodiments involved will not be described in detail here.

[0163] Step S3105: Send SCI to the first target address mentioned above.

[0164] In some embodiments, the carrier associated with the sidelink grant is the carrier where the SCI transmission is located, or the carrier associated with the sidelink grant is the carrier where the PSSCH indicated by the SCI is located.

[0165] For optional implementations of step S3105, please refer to [link / reference]. Figure 2 Optional implementation methods of step S2105, and Figure 2 Other related parts in the embodiments involved will not be described in detail here.

[0166] The method involved in the embodiments of this disclosure may include at least one of steps S3101 to S3105. For example, step S3103 + step S3104 can be implemented as an independent embodiment, step S3101 + step S3103 + step S3104 can be implemented as an independent embodiment, step S3102 + step S3103 + step S3104 can be implemented as an independent embodiment, step S3101 + step S3102 + step S3103 + step S3104 can be implemented as an independent embodiment, and step S3103 + step S3104 + step S3105 can be implemented as an independent embodiment. Step S3105 can be implemented as an independent embodiment, and steps S3101+S3103+S3104+S3105 can be implemented as an independent embodiment, as can steps S3102+S3103+S3104+S3105, as can steps S3101+S3102+S3103+S3104+S3105, but are not limited thereto.

[0167] In some embodiments, steps S3101 and S3102 may be performed in an alternate order or simultaneously.

[0168] In some embodiments, steps S3101, S3102, and S3105 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0169] In some embodiments, steps S3102 and S3105 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0170] In some embodiments, steps S3101 and S3105 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0171] In some embodiments, step S3105 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0172] In some embodiments, steps S3101 and S3102 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0173] In some embodiments, step S3101 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0174] In some embodiments, step S3102 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0175] Figure 3B This is a flowchart illustrating an information processing method according to an embodiment of the present disclosure. Figure 3B As shown, the embodiments of this disclosure relate to an information processing method, which can be executed by terminal 101. The method may include, but is not limited to, the following steps.

[0176] Step S3201: For side link authorization, determine at least one carrier supported by the target address for SL data reception and / or transmission.

[0177] In some embodiments, the at least one target address may include a second target address, and the service type associated with the second target address is a unicast service. An optional implementation of terminal 101 determining carriers supported by at least one target address for SL data reception and / or transmission includes: receiving capability information transmitted by the second target address, the capability information including carriers supporting SL data reception and / or transmission; and determining carriers supported by the second target address for SL data reception and / or transmission based on the capability information transmitted by the second target address and / or first configuration information configured by the network device, wherein the first configuration information includes a list of carriers supported by the terminal. Optional implementations can be found in [reference needed]. Figure 2 Optional implementation methods of step S2103, and Figure 2 Other related parts in the embodiments involved will not be described in detail here.

[0178] In one possible implementation, the terminal 101 determines the carriers supported by the second target address for SL data reception and / or transmission based on the capability information and / or the first configuration information of the network device configuration. This can be achieved by: determining a list of carriers supported by the terminal based on the first configuration information of the network device configuration; and determining the carriers supported by the second target address for SL data reception and / or transmission based on the intersection of the capability information and the list of carriers supported by the terminal.

[0179] In some embodiments, at least one target address includes a third target address, and the service type associated with the third target address is a multicast service or a broadcast service. The optional implementation method for terminal 101 to determine the carriers supported by at least one target address for SL data reception and / or transmission includes: determining the carriers supported by the third target address for SL data reception and / or transmission based on first configuration information configured by the network device and / or second configuration information configured by higher layers (such as the V2X layer). Optional implementation methods can be found in [reference needed]. Figure 2 Optional implementation methods of step S2103, and Figure 2 Other related parts in the embodiments involved will not be described in detail here.

[0180] In one possible implementation, the terminal 101 determines the carriers supported by the third target address for SL data reception and / or transmission based on first configuration information configured by the network device and / or second configuration information configured by higher layers. This determination may include: based on the second configuration information, determining the mapping relationship between a first service and a carrier and / or the mapping relationship between the first service and the third target address, wherein the first service includes multicast services and / or broadcast services; determining the mapping relationship between the third target address and a carrier based on the mapping relationship between the first service and the carrier and / or the mapping relationship between the first service and the third target address; and determining the carriers supported by the third target address for SL data reception and / or transmission based on the mapping relationship between the third target address and the carrier. Optional implementations can be found in [reference needed]. Figure 2 Optional implementation methods of step S2103, and Figure 2 Other related parts in the embodiments involved will not be described in detail here.

[0181] In one possible implementation, the terminal 101 determines the carriers supported by the third target address for SL data reception and / or transmission based on the first configuration information of the network device configuration and / or the second configuration information of the higher-layer configuration. This can be achieved by determining the carriers supported by the third target address for receiving data based on the intersection of the first and second configuration information. Optional implementations can be found in [reference needed]. Figure 2 Optional implementation methods of step S2103, and Figure 2 Other related parts in the embodiments involved will not be described in detail here.

[0182] In some embodiments, the first configuration information described above is included in the SIB or pre-configuration information.

[0183] Step S3202: Based on the carriers supported by at least one target address for SL data reception and / or transmission, determine the first target address of the sidelink media access control protocol data unit SL MAC PDU transmitted by the terminal from at least one target address, and / or determine the logical channel contained in the SL MAC PDU.

[0184] In some embodiments, the first target address supports SL data reception on carriers associated with sidelink licenses.

[0185] In some embodiments, terminal 101 determines the first target address of the SL MAC PDU to be transmitted by the terminal from at least one target address based on a carrier and / or a first condition supported by at least one target address for SL data reception and / or transmission.

[0186] In some embodiments, the first condition includes any one or more of the following: The discontinuous reception SL DRX of the side link is applicable to the first destination address, the side link grant is during the active time of the first destination address, and the side link grant is used to send SL MAC PDU; The first target address has at least one logical channel or MAC CE with the highest priority in at least one first logical channel and / or first media access control layer control unit MACCE, wherein the first logical channel and / or first MACCE satisfies the second condition.

[0187] In some embodiments, the second condition above includes any one or more of the following: It contains SL data waiting to be sent; The first logical channel has a token SBj in the side link transmit buffer, where SBj>0; The sidelink grant is configured grant type 1, and the first logical channel is associated with the sidelink configuration grant type 1 sl-configuredGrantType1Allowed parameter configuration allows the Media Access Control Service Data Unit (MAC SDU) of the logical channel to be transmitted on the configuration grant type 1. A list of allowed configuration licenses is configured, which includes configuration license identifiers associated with sidelink licenses; The side-link grant does not have associated physical side-link feedback channel PSFCH resources, and the hybrid automatic repeat request (HARQ) attribute of the first logical channel is HARQ-disabled. It is configured to support transmission on carriers associated with sidelink licenses.

[0188] In some embodiments, the terminal 101 may determine the implementation of the logical channels contained in the SL MAC PDU by: selecting a logical channel that satisfies a third condition from the logical channels belonging to the first target address; and multiplexing the logical channel that satisfies the third condition into the SL MAC PDU.

[0189] In some embodiments, the third condition above includes any one or more of the following: 1) The selected logical channel has SL data that can be transmitted; and, 2) The sl-configuredGrantType1Allowed parameter of the selected logical channel is configured. If the side-link grant is configured with grant type 1, the sl-configuredGrantType1Allowed parameter is set to true; and, 3) The allowed sidelink uplink unlicensed list (SL-allowedcg-list) for the selected logical channel is configured, and SL-allowedcg-list includes a configuration license index associated with the sidelink license; and, 4) Set the side-link hybrid automatic repeat request feedback enable (sl-HARQ-FeedbackEnabled) of the selected logical channel to a value that meets the following conditions: A) The sidechain authorization associated with the sidelink control information (SCI) is configured with PSFCH, and the terminal receives the PSFCH: I) If the highest priority logical channel among at least one selected logical channel has its sl-HARQ-FeedbackEnabled enabled, then the next selected logical channel also has its sl-HARQ-FeedbackEnabled enabled; or... II) The sl-HARQ-FeedbackEnabled corresponding to the highest priority logical channel among at least one selected logical channel is set to disabled, and the sl-HARQ-FeedbackEnabled of the next selected logical channel is also disabled; B) The sidechain license associated with SCI is not configured with PSFCH, and / or the terminal does not receive PSFCH: The selected logical channel's sl-HARQ-FeedbackEnabled is set to disabled; 5) It is configured to support transmission on the carrier / frequency associated with the SL grant, if configured by upper layers.

[0190] For optional implementations of step S3202, please refer to [link / reference]. Figure 2 Optional implementation methods of step S2104, and Figure 2 Other related parts in the embodiments involved will not be described in detail here.

[0191] In some embodiments, terminal 101 sends an SCI to a first target address. The carrier associated with the sidelink grant is either the carrier where the SCI is transmitted, or the carrier associated with the sidelink grant is the carrier where the PSSCH indicated by the SCI is located. Optional implementations can be found in [reference needed]. Figure 2 Optional implementation methods of step S2105, and Figure 2 Other related parts in the embodiments involved will not be described in detail here.

[0192] Figure 4A This is a flowchart illustrating a side-link communication method according to embodiments of this disclosure. Figure 4A As shown, the method disclosed in this embodiment can be applied to network device 102, and the method includes, but is not limited to, the following steps.

[0193] Step S4101: Send the first configuration information.

[0194] In some embodiments, the first configuration information is configured by the network device 102 for the terminal 101. The network device 102 sends the first configuration information to the terminal 101. Optionally, the terminal 101 receives the first configuration information, such as when the terminal 101 receives the first configuration information sent by the network device 101.

[0195] In some embodiments, the first configuration information is used by terminal 101 to determine at least one carrier supported by a target address for SL data reception and / or transmission, so that terminal 101 determines the first target address of the SL MAC PDU transmitted by terminal 101 based on the carrier supported by the at least one target address for SL data reception and / or transmission, and / or determines the logical channel contained in the SL MAC PDU; wherein the first target address supports SL data reception on a carrier associated with a sidelink license. Optional implementations can be found in [reference needed]. Figure 2 Optional implementation methods of steps S2103 and S2104, and Figure 2 Other related parts in the embodiments involved will not be described in detail here.

[0196] Optionally, in some embodiments, at least one target address includes a second target address, the service type associated with the second target address being a unicast service; the terminal 101 determines, based on the capability information sent by the second target address and / or the first configuration information configured by the network device 102, the carriers supported by the second target address for SL data reception and / or transmission, wherein the first configuration information includes a list of carriers supported by the terminal. Optional implementations can be found in [reference needed]. Figure 2 Optional implementation methods of step S2103, and Figure 2 Other related parts in the embodiments involved will not be described in detail here.

[0197] Optionally, in some embodiments, at least one target address includes a third target address, the service type associated with the third target address being a multicast service or a broadcast service; the terminal 101 determines the carriers supported by the third target address for SL data reception and / or transmission based on the first configuration information configured by the network device and / or the second configuration information configured by the higher layer. Optional implementations can be found in [reference needed]. Figure 2 Optional implementation methods of step S2103, and Figure 2Other related parts in the embodiments involved will not be described in detail here.

[0198] For optional implementations of step S4101, please refer to [link / reference]. Figure 2 Optional implementation methods of step S2101, and Figure 2 Other related parts in the embodiments involved will not be described in detail here.

[0199] Figure 5 This is an interactive schematic diagram of a side-link communication method according to an embodiment of this disclosure. For example... Figure 5 As shown, the method disclosed in this embodiment can be applied to the communication system 100, and the method includes, but is not limited to, the following steps.

[0200] In step S5101, network device 102 sends first configuration information to terminal 101.

[0201] In some embodiments, the first configuration information described above is used by terminal 101 to determine at least one carrier supported by a target address for SL data reception and / or transmission, so that terminal 101 determines a first target address of the sidelink Media Access Control Protocol Data Unit (SL MAC PDU) transmitted by the terminal based on the carrier supported by at least one target address for SL data reception and / or transmission, and / or determines the logical channel contained in the SL MAC PDU; wherein the first target address supports SL data reception on a carrier associated with a sidelink license.

[0202] For optional implementations of step S5101, please refer to [link / reference]. Figure 2 Optional implementation methods of step S2101, and Figure 2 Other related parts in the embodiments involved will not be described in detail here.

[0203] In step S5102, for sidelink authorization, terminal 101 determines at least one carrier supported by a target address for SL data reception and / or transmission.

[0204] Optional implementations of step S5102 can be found in [reference]. Figure 2 Optional implementation methods of step S2103, and Figure 2 Other related parts in the embodiments involved will not be described in detail here.

[0205] In step S5103, terminal 101 determines the first target address of the sidelink media access control protocol data unit SL MACPDU to be transmitted by the terminal from at least one target address based on the carrier supported by at least one target address for SL data reception and / or transmission, and / or determines the logical channel contained in the SL MAC PDU.

[0206] For optional implementations of step S5103, please refer to [link / reference]. Figure 2 Optional implementation methods of step S2104, and Figure 2 Other related parts in the embodiments involved will not be described in detail here.

[0207] In some embodiments, the above method may include the method described in the embodiments on the terminal side, network device side, etc., which will not be repeated here.

[0208] It should be noted that, in the embodiments disclosed herein, when the transmitting terminal selects the target terminal / address during the LCP process, it needs to consider the receiving capability of the target terminal on the carrier associated with the authorized cross link on that side.

[0209] It should be noted that, in the embodiments disclosed herein, when the transmitting terminal selects the target terminal / address during the LCP process, it needs to consider whether the side-link logical channel supports transmission on the carrier associated with the side-link license.

[0210] It should be noted that, in the embodiments disclosed herein, when LCP selects a sidelink logical channel belonging to the target address, it needs to consider whether the sidelink logical channel supports transmission on the carrier associated with the sidelink license.

[0211] In some embodiments, the target terminal / address selected by the transmitting terminal during the LCP process (such as the first target address mentioned above) supports reception on the carrier associated with the licensed link on that side.

[0212] In one implementation, the target terminal / address supports reception on the carrier associated with the side-link license. Optionally, this implementation (i.e., an example of a scheme where the target terminal / address supports reception on the carrier associated with the side-link license) may only be applicable to unicast. For example, the transmitting terminal can obtain the carriers / frequency bands supported by the peer terminal (such as the terminal associated with the second target address mentioned above) through PC5-RRC signaling. The peer terminal is a terminal that has a unicast connection with the transmitting terminal. This disclosure does not specifically limit how this information is obtained.

[0213] Optionally, this implementation (i.e., an example of a scheme where the target terminal / address supports reception on the carrier associated with the side link authorization) can be applied to both unicast and multicast and / or broadcast. For example, the transmitting terminal can obtain the carrier / frequency band that the target Layer 2 address (such as the third target address mentioned above) associated with multicast and / or broadcast services supports for transmission and / or reception through the second configuration information configured at the higher layer (V2X layer) and / or the first configuration information configured by the network device. This disclosure does not specifically limit how to obtain this information.

[0214] Optionally, the above association has two meanings. For example, in the case of non-cross-carrier scheduling, the carrier associated with the sidelink grant is the carrier where the SCI transmission is located. In the case of cross-carrier scheduling, the carrier associated with the sidelink grant is the carrier where the PSSCH indicated by the SCI is located.

[0215] In some embodiments, the SL LCH associated with the target terminal / address selected by the transmitting terminal during the LCP process supports transmission on the carrier associated with the downlink license on that side.

[0216] In one implementation, the target terminal / address has at least one MAC CE or logical channel with the highest priority among all logical channels and MAC CEs that satisfy the following conditions (such as the second condition above): It contains SL data to be transmitted; If any logical channel has SBj, then SBj > 0; If the sidelink grant is configured grant type 1, the sl-configuredGrantType1Allowed configuration associated with the logical channel allows the MAC SDU of the logical channel to be transmitted on configured grant type 1; If a list of allowed configuration licenses is configured, the list contains the configuration license identifier associated with the side-link license; If the side-link grant does not have an associated PSFCH resource, the HARQ attribute of the logical channel is HARQ-disabled; It supports transmission on carriers associated with sidelink licenses, if configured by higher layers and / or network devices.

[0217] The above conditions (such as the second condition above) may be applicable to one or more of the following: unicast, multicast, broadcast. For example, the sending terminal may obtain the target layer 2 address associated with unicast and / or multicast and / or broadcast services and / or the carrier / band supported by the SL LCH associated with the target layer 2 address through higher layer configuration and / or network device configuration. This disclosure does not specifically limit how to obtain this information.

[0218] In some embodiments, the LCP selects a side-link logical channel belonging to the target address and supports transmission on a carrier associated with the side-link license.

[0219] Optionally, when selecting a side-link logical channel belonging to the target address, a logical channel satisfying the following third condition can be selected, wherein the selected logical channel supports transmission on the carrier associated with the side-link license. For example, the third condition includes any one or more of the following: 1) The selected logical channel has SL data that can be transmitted; and, 2) The sl-configuredGrantType1Allowed parameter of the selected logical channel is configured, and when the side-link grant is the configured grant type 1, the sl-configuredGrantType1Allowed parameter is set to true; and, 3) The allowed sidelink uplink unlicensed list SL-allowedcg-list for the selected logical channel is configured, wherein the SL-allowedcg-list includes a configuration license index associated with the sidelink license; and, 4) The selected logical channel's side-link hybrid automatic repeat request feedback enable (sl-HARQ-FeedbackEnabled) is set to a value that satisfies the following conditions: A) The sidechain authorization associated with the sidelink control information (SCI) is configured with a PSFCH, and the terminal receives the PSFCH: I) If the highest priority logical channel among at least one selected logical channel has its sl-HARQ-FeedbackEnabled enabled, then the next selected logical channel also has its sl-HARQ-FeedbackEnabled enabled; or... II) The sl-HARQ-FeedbackEnabled corresponding to the highest priority logical channel among at least one selected logical channel is set to disabled, and the sl-HARQ-FeedbackEnabled of the next selected logical channel is also disabled; B) The sidechain license associated with SCI is not configured with PSFCH, and / or the terminal does not receive PSFCH: The selected logical channel's sl-HARQ-FeedbackEnabled is set to disabled; 5) Supports transmission on carriers associated with sidelink licenses, if configured by higher layers and / or network devices.

[0220] Optionally, the third condition described above may be applied to unicast and / or multicast and / or broadcast. For example, the transmitting terminal may obtain the target layer 2 address associated with unicast and / or multicast and / or broadcast services and / or the carrier / band supported by the SL LCH associated with the target layer 2 address through higher layer configuration and / or network device configuration. This disclosure does not specifically limit how to obtain this information.

[0221] Therefore, the embodiments disclosed herein can solve the problem that the impact of limited transmitting and / or receiving terminal capabilities on the LCP process is unclear in NR Sidelink carrier aggregation scenarios. This disclosure also provides embodiments of an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Furthermore, another apparatus is provided that includes units or modules for implementing the steps performed by the network device in any of the above methods.

[0222] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC), and the functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD), such as a field-programmable gate array (FPGA), which can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0223] In this embodiment, the processor is a circuit with information processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).

[0224] Figure 6A This is a schematic diagram of the terminal structure proposed in an embodiment of this disclosure. For example... Figure 6AAs shown, terminal 6100 may include at least one of a transceiver module 6101, a processing module 6102, etc. In some embodiments, the processing module is configured to determine, for a sidelink grant, at least one carrier supported by a target address for receiving and / or transmitting SL data; the processing module is further configured to determine, based on the carrier supported by the at least one target address for receiving and / or transmitting SL data, a first target address of the sidelink Media Access Control Protocol Data Unit (SL MAC PDU) transmitted by the terminal, and / or determine the logical channel contained in the SL MAC PDU; wherein the first target address supports SL data reception on the carrier associated with the sidelink grant. Optionally, the transceiver module is configured to perform at least one of the communication steps (e.g., steps S2102, S2105, but not limited thereto) performed by terminal 101 in any of the above methods, which will not be described in detail here. Optionally, the above processing module is used to execute at least one of the other steps (such as step S2103, step S2104, but not limited thereto) executed by terminal 101 in any of the above methods, which will not be described in detail here.

[0225] Figure 6B This is a schematic diagram of the network device proposed in an embodiment of this disclosure. Figure 6B As shown, network device 6200 may include at least one of a transceiver module 6201, a processing module 6202, etc. In some embodiments, the transceiver module is configured to send first configuration information to a terminal. The first configuration information is used by the terminal to determine at least one carrier supported by a target address for receiving and / or transmitting SL data, so that the terminal determines a first target address of a sidelink Media Access Control Protocol Data Unit (SL MAC PDU) transmitted by the terminal based on the carrier supported by at least one target address for receiving and / or transmitting SL data, and / or determines the logical channel contained in the SL MAC PDU; wherein the first target address supports SL data reception on a carrier associated with a sidelink license. Optionally, the transceiver module is configured to perform at least one of the communication steps (e.g., step S2101, but not limited thereto) performed by network device 6200 in any of the above methods, which will not be elaborated here. Optionally, the processing module is configured to perform at least one of the other steps performed by network device 102 in any of the above methods, which will not be elaborated here.

[0226] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, which may be separate or integrated. Optionally, the transceiver module may be interchangeable with a transceiver.

[0227] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module. Optionally, the processing module may be interchangeable with a processor.

[0228] Figure 7A This is a schematic diagram of the structure of the communication device 7100 proposed in this embodiment. The communication device 7100 can be a terminal, a network device, a chip, chip system, or processor that supports the terminal in implementing any of the above methods, or a chip, chip system, or processor that supports the network device in implementing any of the above methods. The communication device 7100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0229] like Figure 7A As shown, the communication device 7100 includes one or more processors 7101. The processor 7101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. The communication device 7100 is used to execute any of the above methods.

[0230] In some embodiments, the communication device 7100 further includes one or more memories 7102 for storing instructions. Optionally, all or part of the memories 7102 may also be located outside the communication device 7100.

[0231] In some embodiments, the communication device 7100 further includes one or more transceivers 7103. When the communication device 7100 includes one or more transceivers 7103, the transceivers 7103 perform at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2101, S2102, and S2105, but not limited thereto), and the processor 7101 performs at least one of other steps (e.g., steps S2103 and S2104, but not limited thereto).

[0232] In some embodiments, a transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, etc., may be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., may be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., may be used interchangeably.

[0233] In some embodiments, the communication device 7100 may include one or more interface circuits 7104. Optionally, the interface circuit 7104 is connected to the memory 7102, and the interface circuit 7104 can be used to receive signals from the memory 7102 or other devices, and can be used to send signals to the memory 7102 or other devices. For example, the interface circuit 7104 can read instructions stored in the memory 7102 and send the instructions to the processor 7101.

[0234] The communication device 7100 described in the above embodiments may be a terminal or a network device, but the scope of the communication device 7100 described in this disclosure is not limited thereto, and the structure of the communication device 7100 may vary. Figure 7A The limitations. The communication device can be a standalone device or part of a larger device. For example, the communication device can be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally including storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0235] Figure 7B This is a schematic diagram of the structure of chip 7200 according to an embodiment of this disclosure. For cases where the communication device 7100 can be a chip or a chip system, please refer to... Figure 7B The diagram shown is a schematic representation of the structure of chip 7200, but it is not limited to this.

[0236] Chip 7200 includes one or more processors 7201, which are used to perform any of the above methods.

[0237] In some embodiments, chip 7200 further includes one or more interface circuits 7202. Optionally, the interface circuit 7202 is connected to memory 7203, and the interface circuit 7202 can be used to receive signals from memory 7203 or other devices, and the interface circuit 7202 can be used to send signals to memory 7203 or other devices. For example, the interface circuit 7202 can read instructions stored in memory 7203 and send the instructions to processor 7201.

[0238] In some embodiments, the interface circuit 7202 performs at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2101, S2102, and S2105, but not limited thereto), and the processor 7201 performs at least one of other steps (e.g., steps S2103 and S2104, but not limited thereto).

[0239] In some embodiments, the terms interface circuit, interface, transceiver pin, transceiver, etc., can be used interchangeably.

[0240] In some embodiments, chip 7200 further includes one or more memories 7203 for storing instructions. Optionally, all or part of the memories 7203 may be located outside of chip 7200.

[0241] This disclosure also proposes a storage medium storing instructions that, when executed on the communication device 7100, cause the communication device 7100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0242] This disclosure also provides a program product that, when executed by the communication device 7100, causes the communication device 7100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0243] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

[0244] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this disclosure are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program can be transferred from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVDs)), or semiconductor media (e.g., solid-state disks (SSDs)).

[0245] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0246] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0247] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A side-link communication method, characterized in that, include: For sidelink licensing, the terminal determines at least one carrier supported by the target address for sidelink SL data reception and / or transmission; Based on the carriers supported by the at least one target address for SL data reception and / or transmission, determine the first target address of the sidelink media access control protocol data unit (SL MAC PDU) transmitted by the terminal from the at least one target address, and determine the logical channel contained in the SL MAC PDU; Wherein, the first target address supports SL data reception and / or transmission on the carrier associated with the side link authorization; The terminal determines at least one carrier supported by the target address for SL data reception and / or transmission, including: Based on the first configuration information of the network device configuration and the second configuration information of the higher layer configuration, determine the carriers supported by the at least one target address for SL data reception and / or transmission; The first configuration information includes a frequency band / carrier list, which contains at least one frequency band / carrier. The first configuration information is used by the terminal to determine the frequency band / carrier supported for SL data transmission and / or reception. The second configuration information includes the mapping relationship between the second service and the carrier, and the mapping relationship between the second service and the second target address.

2. The method as described in claim 1, characterized in that, The at least one target address includes a second target address, wherein the service type associated with the second target address is a unicast service; The determination of carriers supported by the at least one target address for SL data reception and / or transmission, based on the first configuration information of the network device configuration and the second configuration information of the higher-layer configuration, includes: Receive capability information sent by the second target address, the capability information including carriers that support SL data reception and / or transmission; Based on the first configuration information of the network device, the frequency band / carrier list is determined; Based on the capability information, the first configuration information of the network device configuration, and the second configuration information of the higher layer configuration, the carriers supported by the second target address for SL data reception and / or transmission are determined.

3. The method as described in claim 1, characterized in that, The at least one target address includes a third target address, and the service type associated with the third target address is a multicast service or a broadcast service; The determination of carriers supported by the at least one target address for SL data reception and / or transmission, based on the first configuration information of the network device configuration and the second configuration information of the higher-layer configuration, includes: Based on the first configuration information of the network device configuration and the second configuration information of the higher layer configuration, the carriers supported by the third target address for SL data reception and / or transmission are determined.

4. The method as described in claim 1, characterized in that, The determination of carriers supported by the at least one target address for SL data reception and / or transmission, based on the first configuration information of the network device configuration and the second configuration information of the higher-layer configuration, includes: Based on the second configuration information, the mapping relationship between the first service and the carrier and the mapping relationship between the first service and the at least one target address are determined, wherein the first service includes unicast service, multicast service and / or broadcast service; Based on the mapping relationship between the first service and the carrier and the mapping relationship between the first service and the at least one target address, the mapping relationship between the at least one target address and the carrier is determined; Based on the mapping relationship between the at least one target address and the carrier, determine the carriers supported by the at least one target address for SL data reception and / or transmission.

5. The method as described in claim 3, characterized in that, The step of determining the carriers supported by the third target address for SL data reception and / or transmission based on the first configuration information and the second configuration information of the higher-layer configuration includes: Based on the intersection of the first configuration information and the second configuration information, the carriers supported by the third target address for receiving and / or transmitting data are determined.

6. The method according to any one of claims 1-5, characterized in that, The first configuration information is contained in the System Information Block (SIB), pre-configuration information, or dedicated RRC signaling.

7. The method according to any one of claims 1, characterized in that, The step of determining the first target address of the sidelink media access control protocol data unit (SL MAC PDU) transmitted by the terminal from the at least one target address based on the carriers supported by the at least one target address for SL data reception and / or transmission includes: Based on the carrier and / or first condition supported by the at least one target address for SL data reception and / or transmission, a first target address for the SL MAC PDU transmitted by the terminal is determined from the at least one target address.

8. The method as described in claim 7, characterized in that, The first condition includes any one or more of the following: The discontinuous reception SL DRX of the sidelink is applicable to the first target address, the sidelink grant is during the activation time of the first target address, and the sidelink grant is used to send the SL MAC PDU; The first target address has at least one logical channel or MAC CE with the highest priority in at least one first logical channel and / or first media access control layer control unit (MACCE), wherein the first logical channel and / or the first MAC CE satisfies the second condition.

9. The method as described in claim 8, characterized in that, The second condition includes any one or more of the following: It contains SL data waiting to be sent; The first logical channel has a token SBj in the side link transmission buffer, where SBj > 0; The sidelink grant is configuration grant type 1, and the Media Access Control Service Data Unit (MAC SDU) of the logical channel associated with the first logical channel is configured to allow transmission on the configuration grant type 1 sidelink configuration grant type 1 sl-configuredGrantType1Allowed parameter to the logical channel. A list of allowed configuration licenses is configured, which includes the configuration license identifier associated with the side-link license; The side link grant does not have associated physical side link feedback channel (PSFCH) resources, and the hybrid automatic repeat request (HARQ) attribute of the first logical channel is HARQ-disabled. It is configured to support transmission and / or reception on carriers associated with the side link authorization.

10. The method as described in claim 1, characterized in that, The step of determining the logical channel contained in the SL MAC PDU includes: Select a logical channel that satisfies the third condition from the logical channels belonging to the first target address; The logical channel that satisfies the third condition is multiplexed into the SL MAC PDU.

11. The method as described in claim 10, characterized in that, The third condition includes any one or more of the following: 1) The selected logical channel has SL data that can be transmitted; 2) The sl-configuredGrantType1Allowed parameter of the selected logical channel is configured, and when the side-link grant is configured as grant type 1, the sl-configuredGrantType1Allowed parameter is set to true; 3) The allowed sidelink uplink unlicensed list SL-allowedcg-list for the selected logical channel is configured, and the SL-allowedcg-list includes a configuration license index associated with the sidelink license; 4) The selected logical channel's side-link hybrid automatic repeat request feedback enable (sl-HARQ-FeedbackEnabled) is set to a value that satisfies the following conditions: A) The sidechain authorization associated with the sidelink control information (SCI) is configured with a PSFCH, and the terminal receives the PSFCH: I) If the highest priority logical channel among at least one selected logical channel has its sl-HARQ-FeedbackEnabled enabled, then the next selected logical channel also has its sl-HARQ-FeedbackEnabled enabled; or... II) The sl-HARQ-FeedbackEnabled corresponding to the highest priority logical channel among at least one selected logical channel is set to disabled, and the sl-HARQ-FeedbackEnabled of the next selected logical channel is also disabled; B) The sidechain license associated with SCI is not configured with PSFCH, and / or the terminal does not receive PSFCH: The selected logical channel's sl-HARQ-FeedbackEnabled is set to disabled; 5) Configured to support transmission and / or reception on carriers associated with the side link authorization.

12. The method according to any one of claims 1-5, characterized in that, The method further includes: Send sidelink control information (SCI) to the first target address; wherein... The carrier associated with the sidelink grant is the carrier in which the SCI transmission is located, or the carrier associated with the sidelink grant is the carrier in which the Physical Sidelink Shared Channel (PSSCH) indicated by the SCI is located.

13. A side-link communication method, characterized in that, include: The network device sends first configuration information to the terminal. The first configuration information is used by the terminal to determine at least one carrier supported by a target address for receiving and / or transmitting sidelink SL data. This enables the terminal to determine a first target address for a sidelink Media Access Control Protocol Data Unit (SL MAC PDU) transmitted by the terminal based on the carrier supported by the at least one target address for receiving and / or transmitting SL data, and to determine the logical channel contained in the SL MAC PDU. The first target address supports receiving and / or transmitting SL data on a carrier associated with a sidelink license. The terminal determines at least one carrier supported by the target address for SL data reception and / or transmission, including: Based on the first configuration information and the second configuration information of the higher layer configuration, the terminal determines the carriers supported by the at least one target address for SL data reception and / or transmission. The first configuration information includes a frequency band / carrier list, which contains at least one frequency band / carrier. The first configuration information is used by the terminal to determine the frequency band / carrier supported for SL data transmission and / or reception. The second configuration information includes the mapping relationship between the second service and the carrier, and the mapping relationship between the second service and the second target address.

14. A communication system, characterized in that, Includes at least one of the following: The terminal is configured to perform the side link communication method as described in any one of claims 1-12; A network device is configured to perform the sidelink communication method as described in claim 13.

15. A first communication device, characterized in that, include: The processing module is used to determine, for side link authorization, at least one carrier supported by a target address for side link SL data reception and / or transmission; The processing module is further configured to determine, based on the carriers supported by the at least one target address for receiving and / or transmitting SL data, a first target address of the sidelink media access control protocol data unit (SL MAC PDU) transmitted by the first communication device, and to determine the logical channel contained in the SL MAC PDU. Wherein, the first target address supports SL data reception and / or transmission on the carrier associated with the side link authorization; The processing module is also used for: Based on the first configuration information of the network device configuration and the second configuration information of the higher layer configuration, determine the carriers supported by the at least one target address for SL data reception and / or transmission; The first configuration information includes a frequency band / carrier list, which contains at least one frequency band / carrier. The first configuration information is used by the terminal to determine the frequency band / carrier supported for SL data transmission and / or reception. The second configuration information includes the mapping relationship between the second service and the carrier, and the mapping relationship between the second service and the second target address.

16. A second communication device, characterized in that, include: A transceiver module is configured to send first configuration information to a terminal. The first configuration information is used by the terminal to determine at least one carrier supported by a target address for receiving and / or transmitting sidelink SL data, so that the terminal determines a first target address of a sidelink Media Access Control Protocol Data Unit (SL MAC PDU) to be transmitted by the terminal based on the carrier supported by the at least one target address for receiving and / or transmitting SL data, and determines the logical channel contained in the SL MAC PDU; wherein the first target address supports receiving and / or transmitting SL data on a carrier associated with a sidelink license. The terminal determines at least one carrier supported by the target address for SL data reception and / or transmission, including: Based on the first configuration information and the second configuration information of the higher layer configuration, the terminal determines the carriers supported by the at least one target address for SL data reception and / or transmission. The first configuration information includes a frequency band / carrier list, which contains at least one frequency band / carrier. The first configuration information is used by the terminal to determine the frequency band / carrier supported for SL data transmission and / or reception. The second configuration information includes the mapping relationship between the second service and the carrier, and the mapping relationship between the second service and the second target address.

17. A communication device, characterized in that, include: One or more processors; The processor is used to invoke instructions to cause the communication device to execute the side link communication method according to any one of claims 1-12 and 13.

18. A storage medium storing instructions, characterized in that, When the instruction is executed on the communication device, the communication device performs the side link communication method according to any one of claims 1-12 and 13.

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