CN113557758B

CN113557758B - Method for reporting side-link capacity, terminal device and network device

Info

Publication number: CN113557758B
Application number: CN201980093901.0A
Authority: CN
Inventors: 卢前溪; 赵振山; 林晖闵
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2023-08-25
Anticipated expiration: 2039-08-09
Also published as: WO2021026708A1; CN113557758A

Abstract

The embodiment of the application relates to a method, terminal equipment and network equipment for reporting the capacity of a side uplink, which comprises the following steps: the first terminal equipment reports at least one first index to the first network equipment, wherein the at least one first index is used for identifying first side communication capacity supported by the first terminal equipment. The method for reporting the capacity of the side uplink, the terminal equipment and the network equipment provided by the embodiment of the application can realize reporting of the capacity of the terminal equipment in the Internet of vehicles system with lower signaling overhead.

Description

Method for reporting side-link capacity, terminal device and network device

Technical Field

The present application relates to the field of communications, and in particular, to a method for reporting a capability of a side uplink, a terminal device, and a network device.

Background

The internet of vehicles system adopts a Device-to-Device (D2D) based Side Link (SL) transmission technology, which is different from the conventional long term evolution (Long Term Evolution, LTE) system in the manner that communication data is received or transmitted through a base station, and the internet of vehicles system adopts the manner that terminal devices are directly communicated with terminal devices, so that the system has higher spectral efficiency and lower transmission delay.

After the terminal device accesses the network, the network device needs to schedule the terminal device. The capabilities supported by different terminal devices may be different, and when the network device schedules the terminal devices, the network device needs to know the capabilities supported by the terminal devices, and then reasonably schedules the terminal devices according to the capabilities supported by the terminal devices. Therefore, it is crucial that the terminal device reports its supported capabilities to the network device.

Therefore, in the internet of vehicles system, how to report the self-supported capability of the terminal device with smaller signaling overhead is a problem to be solved.

Disclosure of Invention

The embodiment of the application provides a method for reporting the capacity of a side uplink, terminal equipment and network equipment, which can realize reporting of the capacity of the terminal equipment in a vehicle networking system with lower signaling overhead.

In a first aspect, a method for capability reporting of a side-link is provided, the method comprising: the first terminal equipment reports at least one first index to the first network equipment, wherein the at least one first index is used for identifying first side communication capacity supported by the first terminal equipment.

In a second aspect, a method for capability reporting of a side-link is provided, the method comprising: the first terminal equipment receives at least one third index sent by the second terminal equipment, and the at least one third index is used for identifying second side communication capacity of communication between the second terminal equipment and the first terminal equipment.

In a third aspect, a method for capability reporting of a side-link is provided, the method comprising: the second terminal device sends at least one third index to the first terminal device, wherein the at least one third index is used for identifying a second side communication capability of communication between the second terminal device and the first terminal device.

In a fourth aspect, a method for capability reporting of a side-link is provided, the method comprising: the first network equipment receives at least one first index reported by first terminal equipment, wherein the at least one first index is used for identifying first side communication capacity supported by the first terminal equipment.

In a fifth aspect, a terminal device is provided for performing the method of the first aspect or each implementation manner thereof.

Specifically, the terminal device comprises functional modules for performing the method of the first aspect or its implementation manner.

In a sixth aspect, a terminal device is provided for performing the method of the second aspect or each implementation manner thereof.

In particular, the network device comprises functional modules for performing the method of the second aspect or implementations thereof described above.

A seventh aspect provides a terminal device for performing the method of the third aspect or implementations thereof.

In particular, the network device comprises functional modules for performing the method of the third aspect described above or implementations thereof.

In an eighth aspect, a network device is provided for performing the method of the fourth aspect or implementations thereof.

In particular, the network device comprises functional modules for performing the method of the fourth aspect described above or in implementations thereof.

In a ninth aspect, a terminal device is provided, comprising a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory and executing the method in the first aspect or various implementation manners thereof.

In a tenth aspect, a terminal device is provided, comprising a processor and a memory. The memory is for storing a computer program and the processor is for calling and running the computer program stored in the memory for performing the method of the second aspect or implementations thereof described above.

In an eleventh aspect, a terminal device is provided that includes a processor and a memory. The memory is for storing a computer program and the processor is for calling and running the computer program stored in the memory for performing the method of the third aspect or implementations thereof.

In a twelfth aspect, a network device is provided that includes a processor and a memory. The memory is for storing a computer program and the processor is for calling and running the computer program stored in the memory for performing the method of the fourth aspect or implementations thereof.

A thirteenth aspect provides an apparatus for implementing the method of any one of the first to fourth aspects or each implementation thereof.

Specifically, the device comprises: a processor for calling and running a computer program from a memory, causing a device in which the apparatus is installed to perform the method as in any one of the first to fourth aspects or implementations thereof described above.

Optionally, the device is a chip.

In a fourteenth aspect, there is provided a computer-readable storage medium storing a computer program for causing a computer to perform the method of any one of the above first to fourth aspects or implementations thereof.

In a fifteenth aspect, there is provided a computer program product comprising computer program instructions for causing a computer to perform the method of any one of the above first to fourth aspects or implementations thereof.

In a sixteenth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of any one of the first to fourth aspects or implementations thereof.

According to the technical scheme, in the Internet of vehicles system, when the terminal equipment needs to report the self-supported sidestream communication capacity to the network equipment, the terminal equipment can report the index corresponding to the sidestream communication capacity to the network equipment without reporting the specific sidestream communication capacity. Because the signaling overhead occupied by the reporting index is smaller than the signaling overhead occupied by the reporting side traffic capacity, the reporting of the terminal equipment capacity in the Internet of vehicles system can be realized with lower signaling overhead.

Drawings

Fig. 1 is an application scenario diagram of a side-link according to an embodiment of the present application.

Fig. 2 is another application scenario diagram of a side-link according to an embodiment of the present application.

Fig. 3 is a schematic flow chart of a method for capability reporting of a side-link according to an embodiment of the application.

Fig. 4 is a flowchart showing a specific implementation of a method for capability reporting of a side-link according to an embodiment of the present application.

Fig. 5 is a schematic diagram of another method for capability reporting of a side-link according to an embodiment of the present application.

Fig. 6 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 7 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 8 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 9 is a schematic block diagram of a network device according to an embodiment of the present application.

Fig. 10 is a schematic block diagram of a communication device according to an embodiment of the present application.

Fig. 11 is a schematic block diagram of an apparatus according to an embodiment of the present application.

Fig. 12 is a schematic block diagram of a communication system according to an embodiment of the present application.

Detailed Description

The following description of the technical solutions according to the embodiments of the present application will be given with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The technical scheme of the embodiment of the application can be applied to various communication systems, such as: global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) systems, general packet radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) systems, LTE frequency division duplex (Frequency Division Duplex, FDD) systems, LTE time division duplex (Time Division Duplex, TDD), universal mobile telecommunications system (Universal Mobile Telecommunication System, UMTS), worldwide interoperability for microwave access (Worldwide Interoperability for Microwave Access, wiMAX) communication systems, or 5G systems, and the like.

Embodiments of the present application describe various embodiments in connection with a network device. The network device may provide communication coverage for a particular geographic area and may communicate with terminal devices located within the coverage area. Alternatively, the network device may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or a base station gNB in a New Radio, NR, system, or a Radio controller in a cloud Radio access network (Cloud Radio Access Network, CRAN), or the network device may be a mobile switching center, a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a network-side device in a 5G network, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.

The embodiments of the present application have been described in connection with a terminal device. Terminal devices include, but are not limited to, connections via wireline, such as via public-switched telephone network (Public Switched Telephone Networks, PSTN), digital subscriber line (Digital Subscriber Line, DSL), digital cable, direct cable connection; and/or another data connection/network; and/or via a wireless interface, e.g., for a cellular network, a wireless local area network (Wireless Local Area Network, WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter; and/or means of the other terminal device arranged to receive/transmit communication signals; and/or internet of things (Internet of Things, ioT) devices. Terminal devices arranged to communicate over a wireless interface may be referred to as "wireless communication terminals", "wireless terminals" or "mobile terminals". Examples of mobile terminals include, but are not limited to, satellites or cellular telephones; a personal communications system (Personal Communications System, PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; a PDA that can include a radiotelephone, pager, internet/intranet access, web browser, organizer, calendar, and/or a global positioning system (Global Positioning System, GPS) receiver; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A terminal device may refer to an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network or a terminal device in a future evolved PLMN, etc.

Fig. 1 and fig. 2 are schematic diagrams of an application scenario according to an embodiment of the present application. Fig. 1 exemplarily shows one network device and two terminal devices, alternatively, the communication system may include a plurality of network devices and each network device may include other number of terminal devices within a coverage area of the network device, which is not limited by the embodiment of the present application.

Specifically, the terminal device 20 and the terminal device 30 may communicate in a D2D communication mode, and at the time of D2D communication, the terminal device 20 and the terminal device 30 directly communicate through a D2D link, that is, SL, for example, as shown in fig. 1 or fig. 2. In fig. 1, the transmission resources of the terminal device 20 and the terminal device 30 are allocated by the network device through the side-link communication. In fig. 2, the transmission resources between the terminal device 20 and the terminal device 30 are selected autonomously by the terminal device through the side-link communication, and the network device is not required to allocate the transmission resources.

Alternatively, the scenario shown in fig. 1 may be used in a vehicle-to-vehicle (Vehicle to Vehicle, V2V) scenario, and the mode shown in fig. 1 may be referred to as mode 3, where transmission resources of the vehicle-mounted terminal are allocated by the base station, and the vehicle-mounted terminal may perform data transmission on the side link according to the resources allocated by the base station. It should be understood that the base station may allocate resources for a single transmission to the terminal, or may allocate resources for a semi-static transmission to the terminal.

Alternatively, the scenario shown in fig. 2 may be used in a V2V scenario, and the mode shown in fig. 2 may be referred to as mode 4, where the vehicle terminal adopts a transmission manner of interception (sensing) +reservation (reservation). The vehicle-mounted terminal can acquire an available transmission resource set in a resource pool in a interception mode, and then can randomly select one resource from the set to transmit data. Because the service in the internet of vehicles system has a periodic characteristic, the terminal equipment generally adopts a semi-static transmission mode, namely, after the terminal equipment selects one transmission resource, the resource can be continuously used in a plurality of transmission periods, so that the probability of resource reselection and resource conflict can be reduced. The terminal equipment can carry the information of the reserved secondary transmission resources in the control information of the current transmission, so that other terminal equipment can judge whether the resources are reserved and used by the user or not by detecting the control information of the user, and the purpose of reducing resource conflict is achieved.

The D2D communication mode may be used for V2V communication or vehicle-to-other device (Vehicle to Everything, V2X) communication, or enhanced (cellular) internet of vehicles (enhanced Vehicle to Everything, eV 2X). In V2X communications, X may refer broadly to any device having wireless receiving and transmitting capabilities, such as, but not limited to, a slow moving wireless device, a fast moving vehicle device, or a network control node having wireless transmitting and receiving capabilities, etc. It should be understood that the embodiment of the present application is mainly applied to the scenario of V2X communication, but may also be applied to any other D2D communication scenario, and the embodiment of the present application is not limited in any way.

The terminal device will typically have a variety of capabilities, which may include, for example, baseband capabilities, radio frequency capabilities, measurement capabilities, terminal levels (category), resource allocation capabilities, support for various optional functions, and the like. Different terminal devices may have different capabilities, and after the terminal device accesses the network, the terminal device may send capability information of the terminal device to the network device, so that the network device may reasonably schedule the terminal device according to the capabilities supported by the terminal device. For example, the network device may allocate appropriate time-frequency resources, power, modulation coding schemes, and the like to the terminal device according to the capabilities supported by the terminal device.

Taking the NR system as an example, the baseband capability of the terminal device may include the capability of the terminal device to support different subcarrier widths, where the subcarrier width supported by the terminal device may be, for example, 7.5kHz, 15kHz, 30kHz, or 60 kHz. The transmission parameters corresponding to different subcarrier widths may be different. The wider the subcarrier is, the shorter the corresponding symbol time is, the lower the time delay is, and the method can be suitable for scenes with higher time delay requirements; the narrower the subcarrier, the longer the corresponding symbol time, and the relatively higher the delay. The network device can reasonably schedule the terminal device according to the subcarrier width reported by the terminal device.

For example, when the network device schedules the terminal device, the network device may consider the subcarrier width supported by the terminal device, and when the subcarrier width of the terminal device is smaller, the network device may schedule according to the smaller subcarrier width. When the subcarrier width of the terminal device is larger, the network device may schedule the terminal device according to the larger subcarrier width.

The network device may schedule the terminal device according to the uplink and downlink preparation time of the terminal device, for example, when the network device schedules the uplink signal, the time interval for scheduling the uplink signal cannot be smaller than the uplink preparation time of the terminal device. When the uplink preparation time of the terminal equipment is smaller, the network equipment can schedule the uplink signal at smaller time intervals; when the uplink preparation time of the terminal device is larger, the network device can schedule the uplink signal at larger time intervals.

In LTE or NR systems, the radio frequency capability of a terminal device may include the supporting capability of the terminal device for different frequency band combinations, the number of transmit antennas of the terminal device, and so on. The network device may schedule the terminal device according to the radio frequency capabilities of the terminal device.

For example, if the number of antennas of the terminal device is 2, when the network device transmits data to the terminal device, the network device transmits data according to the receiving capability of 2 antennas, for example, the network device can transmit data to the terminal device at a smaller transmission rate; if the number of the antennas of the terminal device is 4, the network device will transmit according to the receiving capability of the 4 antennas when transmitting data to the terminal device, for example, the network device can transmit data to the terminal device at a larger transmission rate.

In the LTE-V2X system, when the terminal device reports the sidelink related capability (for convenience of description, the embodiment of the present application is referred to as sidelink communication capability) to the network device, the reporting is performed by the subband group. For example, the terminal device may communicate on band combination 1 and band combination 2, and the terminal device may report the sidestream communication capabilities on band combination 1 and band combination 2 to the network device, respectively. However, the sidestream communication capability on each frequency band in different frequency band combinations and even one frequency band combination has a considerable repetition portion, and if the terminal device reports each repeated sidestream communication capability to the network device, this portion of information may cause a relatively large signaling overhead occupied by the sidestream communication capability.

In view of this, the embodiment of the application provides a method for reporting the capability of a side uplink, which can realize reporting the capability of a terminal device with smaller signaling overhead in a vehicle networking system.

Hereinafter, the side link will be also referred to as side communication, and the uplink and downlink will be also referred to as cellular communication.

Fig. 3 is a schematic flow chart of a method 200 for capability reporting for a side-link in accordance with an embodiment of the application. The method 200 includes at least some of the following.

In 210, the first terminal device reports at least one first index to the first network device, where the at least one first index is used to identify a first side-line communication capability supported by the first terminal device.

In 220, the first network device receives at least one first index reported by the first terminal device.

In embodiments of the present application, the sidestream communication capability may include the radio frequency capability, baseband capability, measurement capability, discontinuous resource allocation capability, and the like mentioned above.

Version 14 (Rel-14) standardizes the internet of vehicles (V2X), the main standardized content being single carrier transmission. In Rel-15LTE, eV2X extends to a multi-carrier scenario, i.e. one terminal device can transmit and receive on more than one carrier at the same time. Thus, the sidestream communication capabilities of embodiments of the present application may also include carrier aggregation (Carrier Aggregation, CA) capabilities. If the first terminal device has the capability of supporting CA, the network device can schedule the first terminal device according to the capability of supporting CA so as to improve the data transmission rate.

In addition, the sidestream communication capabilities may also include communication mode capabilities. The communication mode may be a unicast communication mode, a multicast communication mode or a broadcast communication mode. If the first terminal device supports the unicast communication mode capability, the first terminal device can communicate with one terminal device in a unicast mode; if the first terminal equipment supports the multicast communication mode capability, the first terminal equipment can communicate with a group of terminal equipment in a multicast mode; if the first terminal device supports the broadcast communication mode capability, the first terminal device may communicate with other terminal devices in a broadcast manner.

Optionally, the first mapping set includes a mapping relationship between at least one side line capability identifier and at least one side line communication capability supported by the terminal device, and the second mapping set includes a mapping relationship between a combination of at least one side line capability identifier and at least one index, and the at least one first index has a mapping relationship with a combination of at least one side line capability identifier for identifying the first side line communication capability.

That is, the first mapping set represents the capability of the terminal device on a single frequency band and/or a single carrier, and the second mapping set represents the capability of the terminal device on multiple frequency bands, i.e. the first mapping set enumerates possible sidelink communication capability sets of the sidelink for the frequency band and/or the carrier, and the second mapping set enumerates possible sidelink communication capability combinations of the first terminal device on different frequency band combinations when the first terminal device performs multi-band transmission or reception.

It should be appreciated that in embodiments of the present application, the first set of mappings may also be referred to as a Feature set (Feature Sets), and the second set of mappings may also be referred to as a Feature combination set (Feature Set Combinations).

In the embodiment of the present application, the first terminal device may periodically report at least one first index to the first network device, for example, report at least one first index to the first network device every 10 ms.

Alternatively, the reporting of the at least one first index by the first terminal device to the first network device may be triggered by a specific event. For example, a particular event may require the terminal device to report capability information for the network device.

Or, before the first terminal device reports at least one first index to the first network device, the first terminal device may acquire first indication information, where the first indication information is used to instruct the first terminal device to report the first lateral communication capability to the first network device. The first indication information may be sent by the first network device, or the first indication information may be acquired by the terminal device through system information.

In the case that the first network device sends the first indication information to the first terminal device, the first indication information may also indicate capability information that needs to be reported by the first terminal device, that is, the first indication information may indicate capability information that is supported or needed by the first network device. In this way, it may be avoided that at least part of the capability reported by the first terminal device is not supported or not needed by the first network device, so that signaling overhead may be saved.

Wherein the capability information may include, but is not limited to, at least one of: public land mobile network (Public Land Mobile Network, PLMN) information, radio access technology (Radio Access Technology, RAT) information, frequency information, terminal type information.

Alternatively, the frequency information may include information of a frequency band, a frequency point, a frequency band range, and the like.

When the first indication information indicates that the first terminal device needs to report the capability information, as an example, the first indication information may indicate that the capability information that the UE needs to report is for sidestream communication. For example, the first indication information indicates LTE-side line communication or NR-side line communication.

As another example, the first indication information does not indicate whether capability information for the sidestream communication needs to be reported. In this case, the first terminal device may report the first side-link communication capability and the first cellular communication capability to the first network device based on the first indication information.

Or, the first terminal device may report the first cellular communication capability to the first network device based on the capability information, and determine, according to other messages, whether the first side-line communication capability related to the capability information needs to be reported.

The other message may be fifth indication information sent by the first network device to the first terminal device, where the fifth indication information is used to indicate the first terminal device to report the side-line communication capability related to the capability information. Alternatively, the other message may be a mapping relationship between capability information of cellular communication and capability information of sidestream communication. Or, the other message may be a protocol rule preset on the first terminal device, where the protocol rule reports the side communication capability while the first terminal device reports the cellular communication capability.

The capability information is described by taking RAT as an example. The first indication information indicates that the first terminal device reports LTE-related communication capabilities, but does not indicate sidelink communication, and in one implementation, the first terminal device may report LTE-related cellular communication capabilities and LTE-related sidelink communication capabilities. In another implementation manner, the first terminal device may report LTE-related cellular communication capability, and then determine, according to a mapping relationship between at least one RAT of cellular communication and a RAT of sidelink communication, and according to the RAT of cellular communication indicated by the first indication information, the RAT of sidelink communication reported to the first network device. For example, in a mapping relationship between at least one RAT of cellular communication and a RAT of sidelink communication, uplink and downlink of LTE correspond to sidelink of LTE and sidelink of NR, and the first terminal device may further report the sidelink communication capability of LTE and the sidelink communication capability of NR to the first network device.

Optionally, prior to 210, the method 200 may further include: the first terminal device determines at least one first index according to the first mapping set, the second mapping set and the supported first side communication capability.

Specifically, the first terminal device may determine, according to the first sidestream capability and the first mapping set, a sidestream capability identifier corresponding to the sidestream capability on the single frequency band, and then determine, according to the sidestream capability identifier on the single frequency band and the second mapping set, at least one first index corresponding to a combination of the sidestream capability identifiers. For example, the first sidestream communication capability is XXY, and the first terminal device determines, according to the first mapping set, that a sidestream capability identifier corresponding to the sidestream communication capability X is a, and that a sidestream capability identifier corresponding to the sidestream communication capability Y is b. And then, the first terminal equipment determines that the index corresponding to the combination aab of the sidestream capability identification is 1 in the second mapping set, and the first index reported to the first network equipment by the first terminal equipment is 1.

Optionally, the first terminal device reports at least one first index to the first network device, which may include: the first terminal device reports at least one first index associated with at least one sidestream band combination to the first network device.

The following description is made regarding band combining. If there are 3 bands, band a, band B, and band C, the first terminal device may communicate on a single band, where the single band is: band a, band B or band C; alternatively, the first terminal device may communicate on a dual band: band a + band B, band a + band C, or band B + band C; alternatively, the first terminal device may communicate on three frequency bands, i.e. the first terminal device may communicate on frequency band a + frequency band B + frequency band C. As can be seen, the band combinations are 7 in total, respectively: (1) band a; (2) band B; (3) band C; (4) band a+band B; (5) band a+band C; (6) band b+band C; (7) band A+band B+band C.

Specifically, the first terminal device may report the set of frequency band combinations to the first network device based on the second set of mappings. The set of band combinations may include band combinations for which the side-by-side communication capabilities of the terminal device are for multi-band transmission or reception, and indexes corresponding to different band combinations, which may reference indexes of the second set of mappings to indicate the side-by-side communication capability combinations available on the different band combinations.

The first terminal device mentioned above reports the first cellular communication capability to the first network device, in particular the first terminal device may determine the at least one second index from the third set of mappings, the fourth set of mappings and the supported first cellular communication capability. The first terminal device then reports at least one second index to the first network device.

Wherein the third mapping set comprises a mapping relationship between at least one cellular capability identity and at least one cellular communication capability, and the fourth mapping set comprises a mapping relationship between a combination of at least one cellular capability identity and at least one index having a mapping relationship between at least one second index and a combination of at least one cellular capability identity for identifying the first cellular communication capability, the at least one index comprising at least one second index.

Alternatively, the second set of mappings may be independent of the fourth set of mappings, i.e. the second set of mappings may be defined separately for sidestream communications than for fourth set of mappings for cellular communications.

Alternatively, the second set of mappings may be defined jointly with the fourth set of mappings.

In this case, the total set in which the second and fourth mapping sets are located may distinguish the index in the second mapping set from the index in the fourth mapping set in some specific way.

For example, the total set of the total sets of the second mapping set and the fourth mapping set may include third information, and the third information may display an index indicating that a certain index is an index in the second mapping set or an index in the fourth set. For example, the third information may indicate that the first N indices are indices in the second mapping set, the last N indices are indices in the fourth mapping set, and N is a positive integer. Alternatively, the third information may indicate that the even index is an index in the second mapping set and the odd index is an index in the fourth mapping set.

Further exemplary, the first terminal device may negotiate in advance with the first network device which indexes are indexes in the second mapping set or indexes in the fourth set.

In this way, upon receipt of at least one first index and/or at least one second index, the first network device may determine whether the received index is for sidestream communication or for cellular communication.

Alternatively, the first set of mappings may be in a different message element (Information Element, IE) than the third set of mappings.

The first terminal device reporting at least one second index to the first network device may include: the first terminal device reports at least one second index associated with the at least one cellular band combination to the first network device.

With respect to the above-mentioned set of frequency band combinations, in one possible embodiment, the set of frequency band combinations may include at least one side line frequency band combination and at least one cellular frequency band combination, i.e. the set of frequency band combinations where the cellular frequency band combination is located (for descriptive convenience, referred to as a first set of frequency band combinations) is defined in combination with the set of frequency band combinations where the side line frequency band combination is located (for descriptive convenience, referred to as a second set of frequency band combinations). In this case, the index in the second mapping set and the index in the fourth mapping set may be referenced within one band combination.

In another possible embodiment, the set of band combinations may include only at least one side line of band combinations, i.e. the first set of band combinations is independent of the second set of band combinations.

In this case, first information may be included in the first set of band combinations, which may be used to indicate a sidelink band combination that is simultaneously supported by each of the at least one cellular band combination. That is, the first information may indicate which cellular band combination may be collocated with which sidelink band combination. While the first information may indicate side-line band combinations that are supported simultaneously by each cellular band combination, the first information may illustratively indicate the numbering of the side-line band combinations supported by the cellular band combination in the second set of band combinations.

Alternatively, the second set of frequency band combinations may include second information therein, which may be used to indicate cellular frequency band combinations that are simultaneously supported by each of the at least one sidelink frequency band combinations.

In Rel-16NR, the V2X scenario extends to cross-RAT (Inter-RAT), i.e., both LTE and NR can control the LTE PC5 (LTE-based PC 5) interface, and both LTE and NR can control the NR PC5 (NR-based PC 5) interface.

Based on this, the RAT of the sidelink communication for the second mapping set and the RAT of the cellular traffic for the fourth mapping set may be different, e.g., the RAT of the sidelink communication is NR and the RAT of the cellular communication is LTE. Of course, the RAT of the sidelink communication for the second mapping set and the RAT of the cellular traffic for the fourth mapping set may be the same, which is not particularly limited in the embodiment of the present application.

Similarly, the RAT for cellular communication for the first band combination set and the RAT for sidelink communication for the second band combination set may be different or the same.

Optionally, the first terminal device may further report Uu interface information for controlling sidestream communication to the first network device. I.e. the first terminal device may report to the first network device what network control from the Uu interface the sidestream communication may support.

Wherein the Uu interface information may include, but is not limited to, at least one of: RAT related information of the Uu interface, cell group related information of the Uu interface, frequency band related information of the Uu interface, cell related information of the Uu interface, mode related information of the Uu interface and carrier related information of the Uu interface.

For example, the first terminal device may report to the first network device whether the Uu interface may control sidestream communications. For example, the first terminal device may report to the first network device that the Uu interface cannot control sidestream communication, or the Uu interface may control sidestream communication.

Further, in the case that the Uu interface may control the sidestream communication, the first terminal device may report to the first network device in what mode the Uu interface may control the sidestream communication, e.g. the Uu interface may control the sidestream communication in mode 1 and/or mode 2.

Still further, the first terminal device may report to the first network device which Uu-RAT may control the sidestream communication. For example, the first network device may control sidelink communications using the Uu interface of LTE and/or NR. When LTE-Uu controls NR-V2X, the Uu interface may be configured as the case for LTE-LTE DC; when NR-Uu controls LTE-V2X, the Uu interface may be configured as the case for NR-NR DC.

Still further, the first terminal device may report to the first network device which Uu frequency range may control the sidestream communication.

Still further, the first terminal device may report to the first network device which Uu cell group may control the sidelink communication. For example, the first network device may control sidelink communications using a Uu interface of a primary cell group (Master Cell Group, MCG) and/or a secondary cell group (Secondary Cell Group, SCG).

It should be understood that the term "and/or" is also used herein to describe only one association relationship of associated objects, meaning that there may be three relationships, e.g., a and/or B, which may represent: a exists alone, A and B exist together, and B exists alone.

In the scenario of cross-RAT control side uplink communication of the cellular network, when the first terminal device reports the communication capability to the first network device, for example, the first terminal device reports at least one first index corresponding to the first side communication capability to the first network device, the first terminal device may place the communication capability in any one of the following capability containers: the Capability container of LTE UE-EUTRA-Capability, namely UE-evolved universal terrestrial radio Access (Evolved Universal Terrestrial Radio Access, E-UTRA) -Capability (Capability), the Capability container of NR UE-NR-Capability or the Capability container of Multi-radio Access technology Dual connectivity (Multi-Radio Access Technology Dual Connectivity, MR-DC) UE-MRDC-Capability.

That is, the first terminal device may place an indication of the relevant communication capabilities in the Capability container UE-EUTRA-Capability. At this time, if LTE-Uu controls NR-V2X, for each LTE cellular band combination (LTE downlink band and/or uplink band combination), one or more NR side band combinations may be associated.

Alternatively, the first terminal device may place an indication of the relevant communication capabilities in the Capability container UE-NR-Capability. At this time, if LTE-Uu controls NR-V2X, one or more LTE cellular band combinations (LTE downlink band combinations and/or uplink band combinations) may be associated with each NR-side band combination.

Still alternatively, the first terminal device may place an indication of the relevant communication capabilities in a Capability container UE-MRDC-Capability. At this time, if the LTE-Uu controls NR-V2X, the correlation between the LTE cellular band combination and the NR side band combination can be defined. Since this situation can be used for cases where the sidelink band combines more than one RAT, e.g. LTE side-link and NR side-link, there is a greater flexibility in placing an indication of the relevant communication capabilities in the Capability container UE-MRDC-Capability.

In different scenarios, the communication capabilities supported by the first terminal device may be different. For example, in scenario 1, the first terminal device supports a unicast communication mode, and in scenario 2, the first terminal device supports a multicast communication mode.

Thus, for each content reported by the first terminal device to the first network device mentioned in the foregoing, for example, the first terminal device reporting Uu interface information for controlling sidestream communication to the first network device may be that the first terminal device reports at least one of the following granularity: at least one of a terminal device, a frequency band, a combination of frequency bands, or a carrier.

For example, if the first terminal device reports Uu interface information for controlling sidestream communication to the first network device with the terminal device as granularity, the first terminal device may only need one bit, for example, bit "1" indicates that the Uu interface can control sidestream communication, and bit "0" indicates that the Uu interface cannot control sidestream communication. If the first terminal device reports Uu interface information for controlling sidestream communication to the first network device with the frequency band as granularity, the number of bits of the Uu interface information reported by the first terminal device may be the same as the number of frequency bands.

For the first network device, after the first network device receives at least one first index reported by the first terminal device, the first network device may determine the first side communication capability according to the first mapping set, the second mapping set and the at least one first index.

Specifically, the first network device may determine, according to the second mapping set and the at least one first index, a combination of at least one side line capability identifier corresponding to the at least one first index, and then determine, according to the first mapping set, a side line communication capability represented by each side line capability identifier, so as to determine the first side line communication capability. For example, if the first index received by the first network device is 1, the first network device determines, according to the second mapping set, that the combination of the sidestream capability identifiers corresponding to the index 1 is aab, then, the first network device determines, according to the first mapping set, that the sidestream capability identifier a corresponds to the sidestream communication capability X, that the sidestream capability identifier b corresponds to the sidestream communication capability Y, and then, the first network device may determine that the first sidestream communication capability is XXY.

Optionally, the method 200 may further include: the first network device obtains a first set of mappings and a second set of mappings.

As an example, the first terminal device may report the first mapping set and the second mapping combination to the first network device. For example, the first terminal device may report the first mapping set to the first network device, and then report the second mapping set to the first network device based on the first mapping set.

As another example, the first and second sets of mappings are preset on the first network device such that the first network device can obtain the first and second sets of mappings.

It should be appreciated that the implementation of the first network device to determine the first cellular communication capability according to the third mapping set, the fourth mapping set, and the at least one second index may refer to the implementation of the first network device to determine the first sidelink communication capability, which will not be described herein in detail for brevity.

It should also be appreciated that in this embodiment, the first terminal device may determine at least one first index from only one mapping set (e.g., the fifth mapping set). Wherein the fifth mapping set includes a mapping relationship between at least one sidestream communication capability and at least one index, the sidestream capability in the fifth mapping set may include a sidestream communication capability on a single frequency band and a sidestream communication capability on multiple frequency bands. If the first side line communication capability is XXY, and in the fifth mapping set, an index corresponding to the side line communication capability XXY is 1, and a first index reported by a next first network device of the first terminal device is 1. In this case, the first terminal device may also report the fifth mapping set to the first network device.

Similarly, the first terminal device may determine at least one second index from the sixth set of mappings. Wherein the sixth mapping set includes a mapping relationship between at least one cellular communication capability and at least one index, and the sidelink capability in the sixth mapping set may include a cellular communication capability on a single frequency band and a cellular communication capability on multiple frequency bands.

Optionally, the method 200 may further include: after the first terminal device reports at least one first index to the first network device, the first terminal device receives at least one third index sent by the second terminal device, where the at least one third index is used to identify a second sidestream communication capability of communication between the second terminal device and the first terminal device.

Before the second terminal device sends the at least one third index to the first terminal device, the second terminal device may determine the second sidestream communication capability according to at least one of the following capabilities:

the second network device may be configured to communicate with the second terminal device via a second cellular communication capability of communication between the second terminal device and the second network device, a sidestream communication capability of communication between the second terminal device and other terminal devices than the first terminal device, a sidestream communication capability available to the second terminal device, and a sidestream communication capability that the second terminal device needs to report to the first terminal device.

Specifically, in one implementation, after the second terminal device reports the supported communication capability to the second network device, the second network device may send third indication information to the second terminal device based on the communication capability reported by the second terminal device.

As an example, the third indication information may be used to indicate the second cellular communication configuration.

Since there may be a coupling relationship between the cellular communication configuration of the terminal device and the capabilities available for side-link communication, i.e. there may be situations where the terminal device shares communication capabilities between cellular communication and side-link communication. Accordingly, the second terminal device may determine the available sidestream communication capability according to the second cellular communication configuration indicated by the third indication information. For example, the frequency band combination available to the first terminal device is a frequency band combination 1 and a frequency band combination 2, and the frequency band combination configured by the second network device for cellular communication of the second terminal device is a frequency band combination 1, and then the frequency band combination available for side communication of the second terminal device is limited to be a frequency band combination 2.

As another example, the third indication information may be used to indicate a sidestream communication capability or configuration that may be used by the second terminal device.

Wherein the third indication information may be, but is not limited to, a radio resource control (Radio Resource Control, RRC) connection reconfiguration message.

In another implementation, the first terminal device may send fourth indication information to the second terminal device, which may be used to indicate that the second terminal device needs a sidestream communication capability to be sent to the first terminal device, i.e. the fourth indication information may be used to indicate a communication capability from the second terminal device that is needed or of interest to the first terminal device, e.g. a communication capability of a specific RAT or a communication capability of a specific frequency band.

Further, the second terminal device may also determine a second sidestream capability in combination with quality of service (Quality of Service, qoS) attribute information, traffic information, etc. By way of example, the service information may be carrier information, traffic volume, service type, etc. to which the service is applicable.

Optionally, the method 200 may further include: the first network device sends first configuration information to the first terminal device, the first configuration information including a communication configuration for communication between the first terminal device and the second terminal device.

In this step, there are two implementations, which are described below, respectively.

Mode one: the first network device transmits the first configuration information without obtaining the second sidestream communication capability.

At least one candidate value for the first parameter of the sidestream communication may be included in the first configuration information. Alternatively, the first parameter may be configured by the first network device according to the first sidestream communication capability. At this time, the first parameter may satisfy the first sidestream communication capability of the first terminal device, but does not necessarily satisfy the second sidestream communication capability.

The first terminal device may determine a usage value for the first parameter based on the second sidestream communication capability and the at least one candidate value.

As an example, if a first candidate value of the at least one candidate value is suitable for the second side row communication capability, the first terminal device may determine the first candidate value as a use value for the first parameter.

When the first candidate value includes a plurality of values, optionally, the first terminal device may randomly select one value among the plurality of values as the use value of the first parameter.

Alternatively, the first configuration information may include usage priorities of a plurality of candidate values. At this time, the first terminal device may determine the usage value of the first parameter according to the usage priority of the plurality of values. For example, the first terminal device may determine, from among the plurality of values, a value with the highest priority as the usage value of the first parameter.

As another example, if the at least one candidate value is not applicable to the second sidestream communication capability, the first terminal device may send second indication information to the first network device, where the second indication information is used to indicate that the at least one candidate value is not applicable to the second sidestream communication capability.

Alternatively, the first terminal device may reestablish a connection with the first network device.

Alternatively, the first terminal device may determine the candidate value for the first parameter as the use value. Wherein the candidate value of the first parameter may be a default value of the first parameter given in the protocol.

Further, when the at least one candidate value includes a plurality of candidate values, the first configuration information may further include a value that the first terminal device rolls back to the first network device in a case that the plurality of candidate values are not applicable to the second sidestream communication capability. For example, the first configuration information may include that the first terminal device returns all the plurality of candidate values to the first network device, or the first terminal device may return half of the plurality of candidate values with the lowest priority to the first network device.

The first configuration information may further include a capability applicability condition of the plurality of candidate values. For example, the first configuration information may include a value that should be used under what capabilities of the second terminal device. For example, the plurality of candidate values may include a plurality of candidate values 1 and candidate value 2, and the first configuration information may include that the first terminal device may determine the candidate value 1 as a use value of the first parameter in a case where the second terminal device supports CA; in case the second terminal device does not support CA, the first terminal device may determine the candidate value 2 as the usage value of the first parameter.

Alternatively, if at least one candidate value includes one candidate value, the one candidate value may be a value supporting the most basic communication capability.

Mode two: the first network device sends the first configuration information under the condition that the first terminal device reports the second sidestream communication capability.

The first network device may send the first configuration information to the first network device for the second sidestream communication capability, if the first terminal device reports the second sidestream communication capability to the first network device.

The first terminal device may report the second sidelink communication capability to the first network device using the sidelink information.

After the first terminal device obtains the sidestream communication configuration for communication with the second terminal device, second configuration information may be sent to the second terminal device, where the second configuration information includes the sidestream communication configuration for communication between the first terminal device and the second terminal device.

It should be understood that, in the embodiment of the present application, the first terminal device may also send, to the second terminal device, a sidestream communication capability for communication between the first terminal device and the second terminal device, and then, the second network device may send, to the second terminal device, a sidestream communication configuration for communication between the first terminal device and the second terminal device, and the specific implementation may refer to the foregoing description and will not be repeated herein.

A specific implementation of the method for reporting a capability of a side link according to an embodiment of the present application is described below with reference to fig. 4.

S311, the first network device (NW 1) sends first indication information to the first terminal device (UE 1), where the first indication information is used to instruct the UE1 to report the first sidestream communication capability to NW 1.

S312, UE1 reports at least one first index to NW1 based on the first indication information.

S321, the second network device (NW 2) sends capability acquisition information to the second terminal device (UE 2), where the capability acquisition information is used to instruct the UE2 to report, to the NW2, the sidestream communication capability supported by the UE 2.

S322, the UE2 reports an index corresponding to the supported sidestream communication capability to the NW2 based on the capability acquisition information.

S331, NW2 sends third indication information to UE2, indicating a second cellular communication configuration for cellular communication by UE 2.

S332, UE1 sends fourth indication information to UE2, indicating the sidestream communication capability from UE2 required by UE 1.

S333, UE2 determines a second sidestream communication capability for UE1-UE2 communications that need to be sent to UE1 based on the second cellular communication capability and the sidestream communication capability from UE2 that is needed for UE 1.

S340, UE2 sends at least one third index for identifying the second sidestream communication capability to UE 1.

At S351, UE1 reports one less third index to NW 1.

S352, NW1 sends first configuration information to UE1 based on the second sidestream communication capability, where the first configuration information includes sidestream communication configurations for communication between UE1 and UE 1.

S353, UE1 obtains a sidestream communication configuration for communication with UE 2.

S360, the UE1 sends second configuration information to the UE1, where the second configuration information includes a side communication configuration for communication between the UE1 and the UE 1.

It should be understood that, in the embodiment of the present application, reporting a communication capability, for example, a first terminal device reports a first side communication capability and/or a first cellular communication capability to a first network device, which refers to an index corresponding to the reporting communication capability.

It should also be understood that in the embodiments of the present application, "first," "second," and "third," etc. are merely for distinguishing between different objects, and do not limit the scope of the embodiments of the present application.

In the vehicle networking system, when the terminal equipment needs to report the self-supported sidestream communication capability to the network equipment, the terminal equipment can report the index corresponding to the sidestream communication capability to the network equipment without reporting the specific sidestream communication capability. Because the signaling overhead occupied by the reporting index is smaller than the signaling overhead occupied by the reporting side traffic capacity, the reporting of the terminal equipment capacity in the Internet of vehicles system can be realized with lower signaling overhead.

Optionally, the embodiment of the present application further includes another method 400 for capability reporting of a side link. As shown in fig. 5, the method 400 may include at least some of the following.

In 410, the second terminal device sends at least one third index to the first terminal device, wherein the at least one third index is used to identify a second sidestream communication capability of the communication between the second terminal device and the first terminal device.

In 420, the first terminal device receives at least one third index sent by the second terminal device.

Optionally, in an embodiment of the present application, the method 400 may further include: the first terminal equipment receives first configuration information sent by the first network equipment, wherein the first configuration information comprises side communication configuration for communication between the first terminal equipment and the second terminal equipment.

Optionally, in an embodiment of the present application, the first configuration information includes at least one candidate value for the first parameter.

In this case, the method 400 further includes: the first terminal device determines a usage value for the first parameter based on the second sidestream communication capability and the at least one candidate value.

Optionally, in an embodiment of the present application, the determining, by the first terminal device, a usage value for the first parameter according to the second sidestream communication capability and at least one candidate value includes: if a first candidate value of the at least one candidate value is suitable for the second sidestream communication capability, the first terminal device determines the first candidate value as a use value for the first parameter.

Optionally, in an embodiment of the present application, if at least one candidate value is not applicable to the second sidestream communication capability, the method further includes: the first terminal equipment sends second indication information to the first network equipment, wherein the second indication information is used for indicating that at least one candidate value is not applicable to the second sidestream communication capability; or (b)

The first terminal device reestablishes a connection with the first network device.

Optionally, in an embodiment of the present application, the determining, by the first terminal device, a usage value for the first parameter according to the second sidestream communication capability and at least one candidate value includes: if at least one candidate value is not suitable for the second sidestream communication capability, the first terminal device determines a default value of the first parameter as a use value.

Optionally, in an embodiment of the present application, the method 400 may further include: the second terminal device determines the second sidestream communication capability according to at least one of the following capabilities:

the second network device may be configured to communicate with the second terminal device via a second cellular communication capability or configuration of communication between the second terminal device and the second network device, a sidestream communication capability or configuration of communication between the second terminal device and other terminal devices than the first terminal device, a sidestream communication capability or configuration available to the second terminal device, and a sidestream communication capability that the second terminal device needs to report to the first terminal device.

Optionally, in an embodiment of the present application, the method 400 may further include: the second terminal device receives third indication information sent by the second network device, where the third indication information is used to indicate the second cellular communication configuration.

Optionally, in an embodiment of the present application, the method 400 may further include: and the second terminal equipment receives third indication information sent by the second network equipment, wherein the third indication information is used for indicating the sidestream communication capability or sidestream communication configuration which can be used by the second terminal equipment.

Optionally, in an embodiment of the present application, the method 400 may further include: the second terminal equipment receives fourth indication information sent by the first terminal equipment, wherein the fourth indication information is used for indicating the sidestream communication capability which needs to be reported to the first terminal equipment by the second terminal equipment.

Optionally, in an embodiment of the present application, the method 400 may further include: the second terminal equipment receives second configuration information sent by the first terminal equipment, wherein the second information comprises side communication configuration for communication between the first terminal equipment and the second terminal equipment.

It should be understood that although methods 200 and 400 are described above as separate, this does not mean that methods 200 and 400 are independent and the descriptions of the respective methods may be referred to each other. For example, the relevant descriptions in method 200 may apply to method 400. For brevity of the disclosure, embodiments of the present application do not describe the method 400 too much.

The preferred embodiments of the present application have been described in detail above with reference to the accompanying drawings, but the present application is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present application within the scope of the technical concept of the present application, and all the simple modifications belong to the protection scope of the present application.

For example, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.

As another example, any combination of the various embodiments of the present application may be made without departing from the spirit of the present application, which should also be regarded as the disclosure of the present application.

It should be understood that, in the various method embodiments of the present application, the sequence number of each process described above does not mean that the execution sequence of each process should be determined by its functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

Having described the method for reporting the capability of the side link in detail in the foregoing, the communication device according to the embodiment of the present application will be described with reference to fig. 6 to 9, and technical features described in the method embodiment are applicable to the following device embodiments.

Fig. 6 shows a schematic block diagram of a terminal device 500 of an embodiment of the application. As shown in fig. 6, the terminal device 500 includes:

a communication unit 510, configured to report at least one first index to a first network device, where the at least one first index is used to identify a first sidestream communication capability supported by the terminal device 500.

Optionally, in an embodiment of the present application, the communication unit 510 is further configured to: reporting a first mapping set and a second mapping set to the first network device;

the first mapping set comprises a mapping relation between at least one side line capability identifier and at least one side line communication capability supported by the terminal equipment, and the second mapping set comprises a mapping relation between at least one combination of the side line capability identifiers and at least one index, and the at least one index comprises the at least one first index.

Optionally, in an embodiment of the present application, the communication unit 510 is specifically configured to: reporting the at least one first index associated with at least one sidelink combination to the first network device.

Optionally, in an embodiment of the present application, the communication unit 510 is further configured to: and reporting Uu interface information for controlling sidestream communication to the first network equipment.

Optionally, in an embodiment of the present application, the Uu interface information includes at least one of the following: radio Access Technology (RAT) information of a Uu interface, cell group information of the Uu interface, frequency band information of the Uu interface, cell information of the Uu interface, mode information of the Uu interface and carrier information of the Uu interface.

Optionally, in an embodiment of the present application, the communication unit 510 is specifically configured to: reporting the Uu interface information to the first network device based on at least one of: at least one of a terminal device, a side-line frequency band combination, and a side-line frequency band combination.

Optionally, in an embodiment of the present application, the communication unit 510 is further configured to: and receiving first indication information sent by the first network device, where the first indication information is used to instruct the terminal device 500 to report the first sidestream communication capability to the first network device.

Optionally, in the embodiment of the present application, the first indication information is used to indicate capability information of side communication that needs to be reported by the terminal device 500.

Optionally, in an embodiment of the present application, the capability information includes RAT information of sidestream communication, and/or band information of sidestream communication.

Optionally, in the embodiment of the present application, the first indication information is used to indicate RAT information that needs to be reported by the terminal device 500.

Optionally, in an embodiment of the present application, the terminal device 500 further includes: and a processing unit 520, configured to determine, according to the RAT of cellular communication indicated by the first indication information, a RAT of sidestream communication reported to the first network device.

Optionally, in an embodiment of the present application, the processing unit 520 is specifically configured to: and determining the lateral communication RAT reported to the first network equipment according to the association relation between at least one cellular communication RAT and the lateral communication RAT and the cellular communication RAT indicated by the first indication information.

Optionally, in an embodiment of the present application, the communication unit 510 is further configured to: at least one second index is reported to the first network device, the at least one second index being used to identify the first cellular communication capability supported by the terminal device 500.

Optionally, in an embodiment of the present application, the communication unit 510 is further configured to: reporting a third mapping set and a fourth mapping set to the first network device;

wherein the third mapping set comprises a mapping relation between at least one cellular capability identity and at least one cellular communication capability supported by the terminal device, the fourth mapping set comprises a mapping relation between at least one combination of the cellular capability identities and at least one index, and the at least one index comprises the at least one second index.

Optionally, in an embodiment of the present application, the second set of mappings is independent of the fourth set of mappings;

the second mapping set includes a mapping relationship between a combination of at least one sidestream capability identifier supported by the terminal device and at least one index, where the at least one index includes the at least one first index.

Optionally, in an embodiment of the present application, the second mapping set and the fourth mapping set are defined jointly;

Optionally, in an embodiment of the present application, the RAT of the sidelink communication for which the second mapping set is directed is different from the RAT of the cellular communication for which the fourth mapping set is directed.

Optionally, in an embodiment of the present application, the communication unit 510 is specifically configured to: reporting the at least one second index associated with at least one cellular band combination to the first network device.

Optionally, in an embodiment of the present application, a first set of frequency band combinations where the at least one cellular frequency band combination is located is defined in combination with a second set of frequency band combinations where the at least one sidelink frequency band combination is located.

Optionally, in an embodiment of the present application, the first set of frequency band combinations where the at least one cellular frequency band combination is located is independent of the second set of frequency band combinations where the at least one sideline frequency band combination is located.

Optionally, in an embodiment of the present application, the first set of frequency band combinations includes first information, where the first information is used to indicate a side-row frequency band combination that is simultaneously supported by a cellular frequency band combination in the at least one cellular frequency band combination.

Optionally, in an embodiment of the present application, the second set of frequency band combinations includes second information, where the second information is used to indicate a cellular frequency band combination that is simultaneously supported by a side-line frequency band combination in the at least one side-line frequency band combination.

Optionally, in an embodiment of the present application, the RAT of cellular communication for which the first set of band combinations is intended and the RAT of sidelink communication for which the second set of band combinations is intended are different.

Optionally, in an embodiment of the present application, the communication unit 510 is further configured to: at least one third index sent by a second terminal device is received, where the at least one third index is used to identify a second sidestream communication capability of a communication between the second terminal device and the terminal device 500.

Optionally, in an embodiment of the present application, the communication unit 510 is further configured to: reporting a fifth mapping set to the first network device, wherein the fifth mapping set comprises a mapping relation between at least one sidestream communication capability and at least one index, and the at least one index comprises the at least one first index.

Optionally, in an embodiment of the present application, the communication unit 510 is further configured to: and receiving first configuration information sent by the first network device, wherein the first configuration information comprises side communication configuration for communication between the terminal device 500 and the second terminal device.

Optionally, in an embodiment of the present application, the first configuration information includes at least one candidate value for the first parameter;

the terminal device 500 further includes: a processing unit 520, configured to determine a usage value for the first parameter according to the second sidestream communication capability and the at least one candidate value.

Optionally, in an embodiment of the present application, the processing unit 520 is specifically configured to: and if a first candidate value in the at least one candidate value is suitable for the second side line communication capability, determining the first candidate value as a use value for the first parameter.

Optionally, in an embodiment of the present application, if the at least one candidate value is not applicable to the second sidestream communication capability, the communication unit 510 is further configured to: transmitting second indication information to the first network device, wherein the second indication information is used for indicating that the at least one candidate value is not applicable to the second sidestream communication capability; or (b)

The processing unit 520 is further configured to reestablish a connection with the first network device.

Optionally, in an embodiment of the present application, the processing unit 520 is specifically configured to: and if the at least one candidate value is not suitable for the second sidestream communication capability, determining the default value of the first parameter as the use value.

Optionally, in an embodiment of the present application, the communication unit 510 is further configured to: and reporting the information of the second sidestream communication capability to the first network device.

Optionally, in an embodiment of the present application, the communication unit 510 is further configured to: and sending second configuration information to the second terminal equipment, wherein the second configuration information comprises side communication configuration for communication between the terminal equipment 500 and the second terminal equipment.

It should be understood that the terminal device 500 may correspond to a terminal device in the method 200, and the corresponding operation of the terminal device in the method 200 may be implemented, which is not described herein for brevity.

Fig. 7 shows a schematic block diagram of a terminal device 600 of an embodiment of the application. As shown in fig. 7, the terminal apparatus 600 includes:

a communication unit 610, configured to receive at least one third index sent by a second terminal device, where the at least one third index is used to identify a second sidestream communication capability of communication between the second terminal device and the terminal device 600.

Optionally, in an embodiment of the present application, the communication unit 610 is further configured to: and receiving first configuration information sent by the first network device, where the first configuration information includes a sidestream communication configuration of communication between the terminal device 600 and the second terminal device.

the terminal device 600 further includes: a processing unit 620, configured to determine a usage value for the first parameter according to the second sidestream communication capability and the at least one candidate value.

Optionally, in an embodiment of the present application, the processing unit 620 is specifically configured to: and if a first candidate value in the at least one candidate value is suitable for the second side line communication capability, determining the first candidate value as a use value for the first parameter.

Optionally, in an embodiment of the present application, if the at least one candidate value is not applicable to the second sidestream communication capability, the communication unit 610 is further configured to: transmitting second indication information to the first network device, wherein the second indication information is used for indicating that the at least one candidate value is not applicable to the second sidestream communication capability; or (b)

The processing unit 620 is further configured to reestablish a connection with the first network device.

Optionally, in an embodiment of the present application, the processing unit 620 is specifically configured to: and if the at least one candidate value is not suitable for the second sidestream communication capability, determining the default value of the first parameter as the use value.

It should be understood that the terminal device 600 may correspond to a terminal device in the method 400, and the corresponding operation of the terminal device in the method 400 may be implemented, which is not described herein for brevity.

Fig. 8 shows a schematic block diagram of a terminal device 700 of an embodiment of the application. As shown in fig. 8, the terminal device 700 includes:

a communication unit 710, configured to send at least one third index to the first terminal device, where the at least one third index is used to identify a second sidestream communication capability of the communication between the terminal device 700 and the first terminal device.

Optionally, in an embodiment of the present application, the terminal device 700 further includes: a processing unit 720, configured to determine the second sidestream communication capability according to at least one of the following capabilities:

a second cellular communication capability or second cellular communication configuration of communication between the terminal device 700 and a second network device, a sidestream communication capability of communication between the terminal device 700 and other terminal devices than the first terminal device, a sidestream communication capability or sidestream communication configuration usable by the terminal device 700, and a sidestream communication capability that the terminal device 700 needs to report to the first terminal device.

Optionally, in an embodiment of the present application, the communication unit 710 is further configured to: and receiving third indication information sent by the second network equipment, wherein the third indication information is used for indicating the second cellular communication configuration.

Optionally, in an embodiment of the present application, the communication unit 710 is further configured to: and receiving third indication information sent by the second network device, where the third indication information is used to indicate a sidestream communication capability or sidestream communication configuration that can be used by the terminal device 700.

Optionally, in an embodiment of the present application, the communication unit 710 is further configured to: and receiving fourth indication information sent by the first terminal equipment, wherein the fourth indication information is used for indicating the side communication capability which needs to be reported to the first terminal equipment by the terminal equipment 700.

Optionally, in an embodiment of the present application, the communication unit 710 is further configured to: and receiving second configuration information sent by the first terminal equipment, wherein the second information comprises side communication configuration for communication between the first terminal equipment and the terminal equipment 700.

It should be understood that the terminal device 700 may correspond to a terminal device in the method 400, and the corresponding operation of the terminal device in the method 400 may be implemented, which is not described herein for brevity.

Fig. 9 shows a schematic block diagram of a network device 800 of an embodiment of the application. As shown in fig. 9, the network device 800 includes:

the communication unit 810 is configured to receive at least one first index reported by a first terminal device, where the at least one first index is used to identify a first side communication capability supported by the first terminal device.

Optionally, in an embodiment of the present application, the communication unit 810 is further configured to: receiving a first mapping set and a second mapping set reported by the first terminal equipment;

Optionally, in an embodiment of the present application, the network device 800 further includes: a processing unit 820, configured to determine the first sidestream communication capability according to the first mapping set, the second mapping set and the at least one first index.

Optionally, in an embodiment of the present application, the communication unit 810 is specifically configured to: and receiving the at least one first index which is reported by the first terminal equipment and is associated with at least one sidestream band combination.

Optionally, in an embodiment of the present application, the communication unit 810 is further configured to: and receiving Uu interface information which is reported by the first terminal equipment and used for controlling sidestream communication.

Optionally, in an embodiment of the present application, the communication unit 810 is specifically configured to: receiving Uu interface information reported by the first terminal equipment based on at least one granularity of the following: at least one of a terminal device, a side-line frequency band combination, and a side-line frequency band combination.

Optionally, in an embodiment of the present application, the communication unit 810 is further configured to: and sending first indication information to the first terminal device, where the first indication information is used to instruct the first terminal device to report the first sidestream communication capability to the network device 800.

Optionally, in the embodiment of the present application, the first indication information is used to indicate capability information of sidestream communication that needs to be reported by the first terminal device.

Optionally, in the embodiment of the present application, the first indication information is used to indicate RAT information that needs to be reported by the first terminal device.

Optionally, in an embodiment of the present application, the communication unit 810 is further configured to: and receiving at least one second index reported by the first terminal equipment, wherein the at least one second index is used for identifying the first cellular communication capability supported by the first terminal equipment.

Optionally, in an embodiment of the present application, the communication unit 810 is further configured to: receiving a third mapping set and a fourth mapping set reported by the first terminal equipment;

Optionally, in an embodiment of the present application, the network device 800 further includes: a processing unit 820 is configured to determine the first cellular communication capability according to the third mapping set, the fourth mapping set and the at least one second index.

Optionally, in an embodiment of the present application, the communication unit 810 is specifically configured to: and receiving the at least one second index which is reported by the first terminal equipment and is associated with at least one cellular frequency band combination.

Optionally, in an embodiment of the present application, the communication unit 810 is further configured to: and receiving a fifth mapping set reported by the first terminal equipment, wherein the fifth mapping set comprises a mapping relation between at least one sidestream communication capability and at least one index, and the at least one index comprises the at least one first index.

Optionally, in an embodiment of the present application, the communication unit 810 is further configured to: and sending first configuration information to the first terminal equipment, wherein the first configuration information comprises side communication configuration for communication between the first terminal equipment and the second terminal equipment.

Optionally, in an embodiment of the present application, the communication unit 810 is further configured to: and receiving second indication information sent by the first terminal equipment, wherein the second indication information is used for indicating that at least one candidate value is not applicable to second sidestream communication capability, and the second sidestream communication capability is the sidestream communication capability of communication between the first terminal equipment and the second terminal equipment.

Optionally, in an embodiment of the present application, the communication unit 810 is further configured to: and receiving at least one third index reported by the first terminal equipment, wherein the at least one third index is used for identifying the sidestream communication capability of communication between the first terminal equipment and the second terminal equipment.

Optionally, in an embodiment of the present application, the communication unit 810 is specifically configured to: and sending the configuration information to the first terminal equipment according to the second side communication capability.

It should be understood that the network device 800 may correspond to the network device in the method 200, and the corresponding operations of the network device in the method 200 may be implemented, which are not described herein for brevity.

Fig. 10 is a schematic block diagram of a communication device 900 according to an embodiment of the present application. The communication device 900 shown in fig. 10 comprises a processor 910, from which the processor 910 may call and run a computer program to implement the method in an embodiment of the application.

Optionally, as shown in fig. 10, the communication device 900 may also include a memory 920. Wherein the processor 910 may invoke and run a computer program from the memory 920 to implement the method in the embodiments of the present application.

Wherein the memory 920 may be a separate device from the processor 910 or may be integrated in the processor 910.

Optionally, as shown in fig. 9, the communication device 900 may further include a transceiver 930, and the processor 910 may control the transceiver 930 to communicate with other devices, and in particular, may send information or data to other devices, or receive information or data sent by other devices.

Wherein transceiver 930 may include a transmitter and a receiver. Transceiver 930 may further include antennas, the number of which may be one or more.

Optionally, the communication device 900 may be specifically a network device in the embodiment of the present application, such as the first network device, and the communication device 900 may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the communication device 900 may be specifically a terminal device in the embodiment of the present application, such as a first terminal device or a second terminal device, and the communication device 900 may implement a corresponding flow implemented by the terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

Fig. 11 is a schematic structural view of an apparatus of an embodiment of the present application. The apparatus 1000 shown in fig. 11 comprises a processor 1010, from which the processor 1010 may call and run a computer program to implement the method in an embodiment of the application.

Optionally, as shown in fig. 11, the apparatus 1000 may further comprise a memory 1020. Wherein the processor 1010 may call and run a computer program from the memory 1020 to implement the methods in embodiments of the present application.

The memory 1020 may be a separate device from the processor 1010 or may be integrated into the processor 1010.

Optionally, the apparatus 1000 may further comprise an input interface 1030. The processor 1010 may control the input interface 1030 to communicate with other devices or chips, and in particular, may obtain information or data sent by the other devices or chips.

Optionally, the apparatus 1000 may further include an output interface 1040. Wherein the processor 1010 may control the output interface 1040 to communicate with other devices or chips, and in particular, may output information or data to other devices or chips.

Optionally, the apparatus may be applied to a terminal device in the embodiment of the present application, such as a first terminal device or a second terminal device, and the apparatus may implement a corresponding flow implemented by the terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the apparatus may be applied to a network device in the embodiment of the present application, such as the first network device, and the apparatus may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Alternatively, the device may be a chip. It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

It should be appreciated that the processor of an embodiment of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will be appreciated that the memory in embodiments of the application may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memory is illustrative but not restrictive, and for example, the memory in the embodiments of the present application may be Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), direct RAM (DR RAM), and the like. That is, the memory in embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

Fig. 12 is a schematic block diagram of a communication system 1100 provided by an embodiment of the present application. As shown in fig. 12, the communication system 1100 includes a first terminal device 1110 and a first network device 1120.

The first terminal device 1110 may be used to implement the corresponding function implemented by the first terminal device in the above method, and the first network device 1120 may be used to implement the corresponding function implemented by the first network device in the above method, which are not described herein for brevity.

The embodiment of the application also provides a computer readable storage medium for storing a computer program.

Optionally, the computer readable storage medium may be applied to a terminal device in the embodiment of the present application, such as a first terminal device or a second terminal device, and the computer program causes a computer to execute a corresponding flow implemented by the terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the computer readable storage medium may be applied to a network device in the embodiment of the present application, such as the first network device, and the computer program causes a computer to execute a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

The embodiment of the application also provides a computer program product comprising computer program instructions.

Optionally, the computer program product may be applied to a terminal device in the embodiment of the present application, such as the first terminal device or the second terminal device, and the computer program instructions cause the computer to execute corresponding processes implemented by the terminal device in each method in the embodiment of the present application, which are not described herein for brevity.

Optionally, the computer program product may be applied to a network device in the embodiment of the present application, such as the first network device, and the computer program instructions cause a computer to execute a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to a terminal device in the embodiment of the present application, such as the first terminal device or the second terminal device, and when the computer program runs on a computer, the computer is caused to execute a corresponding flow implemented by the terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the computer program may be applied to a network device in the embodiment of the present application, such as the first network device, and when the computer program runs on a computer, the computer is caused to execute a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for capability reporting of a side-link, the method comprising:

the method comprises the steps that a first terminal device reports at least one first index to a first network device, wherein the at least one first index is used for identifying first side communication capacity supported by the first terminal device;

the method further comprises the steps of:

the first terminal equipment reports a first mapping set and a second mapping set to the first network equipment;

wherein the first mapping set is used for representing the capability of the first terminal device on a single frequency band and comprises a mapping relation between at least one sidestream capability identifier and at least one sidestream communication capability supported by the terminal device, and the second mapping set is used for representing the capability of the first terminal device on multiple frequency bands and comprises a mapping relation between at least one combination of the sidestream capability identifiers and at least one index, and the at least one index comprises the at least one first index;

the method further comprises the steps of:

the first terminal equipment firstly determines a sidestream capability identifier corresponding to the sidestream communication capability on a single frequency band according to the first sidestream communication capability and the first mapping set, and then determines at least one first index corresponding to a combination of the sidestream capability identifiers according to the sidestream capability identifier on the single frequency band and the second mapping set.

2. The method of claim 1, wherein the first terminal device reporting at least one first index to a first network device, comprises:

the first terminal device reports the at least one first index associated with at least one sidestream band combination to the first network device.

3. The method according to claim 1 or 2, characterized in that the method further comprises:

and the first terminal equipment reports Uu interface information for controlling sidestream communication to the first network equipment.

4. A method according to claim 3, wherein the Uu interface information comprises at least one of: radio Access Technology (RAT) information of a Uu interface, cell group information of the Uu interface, frequency band information of the Uu interface, cell information of the Uu interface, mode information of the Uu interface and carrier information of the Uu interface.

5. A method according to claim 3, wherein the first terminal device reporting Uu interface information for controlling sidestream communication to the first network device, comprising:

the first terminal device reports the Uu interface information to the first network device based on at least one granularity of:

At least one of a terminal device, a side-line frequency band combination, and a side-line frequency band combination.

6. The method according to claim 1 or 2, characterized in that the method further comprises:

the first terminal equipment receives first indication information sent by the first network equipment, wherein the first indication information is used for indicating the first terminal equipment to report the first sidestream communication capability to the first network equipment.

7. The method of claim 6, wherein the first indication information is used to indicate capability information of sidestream communication that needs to be reported by the first terminal device.

8. The method of claim 7, wherein the capability information comprises RAT information for sidestream communication, and/or frequency band information for sidestream communication.

9. The method of claim 6, wherein the first indication information is used to indicate RAT information that needs to be reported by the first terminal device.

10. The method according to claim 9, wherein the method further comprises:

and the first terminal equipment determines the RAT of the sidestream communication reported to the first network equipment according to the RAT of the cellular communication indicated by the first indication information.

11. The method of claim 10, wherein the first terminal device determining the RAT of the sidestream communication reported to the first network device based on the RAT of the cellular communication, comprising:

and the first terminal equipment determines the lateral communication RAT reported to the first network equipment according to the association relation between at least one cellular communication RAT and the lateral communication RAT and according to the cellular communication RAT indicated by the first indication information.

12. The method according to claim 1 or 2, characterized in that the method further comprises:

the first terminal device reports at least one second index to the first network device, where the at least one second index is used to identify a first cellular communication capability supported by the first terminal device.

13. The method according to claim 12, wherein the method further comprises:

the first terminal equipment reports a third mapping set and a fourth mapping set to the first network equipment;

14. The method of claim 13, wherein a second set of mappings is independent of the fourth set of mappings;

15. The method of claim 13, wherein a second set of mappings and the fourth set of mappings are defined jointly;

16. The method of claim 14, wherein a RAT for side row communication for the second set of mappings is different from a RAT for cellular communication for the fourth set of mappings.

17. The method of claim 12, wherein the first terminal device reporting at least one second index to the first network device comprises:

the first terminal device reports the at least one second index associated with at least one cellular band combination to the first network device.

18. The method of claim 17, wherein a first set of band combinations where the at least one cellular band combination is located is defined in conjunction with a second set of band combinations where at least one sidelink band combination is located.

19. The method of claim 17, wherein a first set of frequency band combinations where the at least one cellular frequency band combination is located is independent of a second set of frequency band combinations where the at least one sidelink frequency band combination is located.

20. The method of claim 19, wherein the first set of frequency band combinations includes first information indicating side-row frequency band combinations that are simultaneously supported by a cellular frequency band combination of the at least one cellular frequency band combination.

21. The method of claim 19, wherein the second set of frequency band combinations includes second information indicating a combination of cellular frequency bands that is simultaneously supported by a side-row frequency band combination of the at least one side-row frequency band combination.

22. The method of claim 18, wherein a RAT for cellular communication for the first set of band combinations is different from a RAT for sidelink communication for the second set of band combinations.

23. The method according to claim 1, wherein the method further comprises:

the first terminal device reports a fifth mapping set to the first network device, wherein the fifth mapping set comprises a mapping relation between at least one sidestream communication capability and at least one index, and the at least one index comprises the at least one first index.

24. The method according to claim 1 or 2, characterized in that the method further comprises:

the first terminal equipment receives at least one third index sent by the second terminal equipment, and the at least one third index is used for identifying second side communication capacity of communication between the second terminal equipment and the first terminal equipment.

25. The method of claim 24, wherein the method further comprises:

the first terminal equipment receives first configuration information sent by the first network equipment, wherein the first configuration information comprises sidestream communication configuration for communication between the first terminal equipment and the second terminal equipment.

26. The method of claim 25, wherein the first configuration information includes at least one candidate value for a first parameter;

The method further comprises the steps of:

and the first terminal equipment determines a use value for the first parameter according to the second sidestream communication capability and the at least one candidate value.

27. The method of claim 26, wherein the first terminal device determining a usage value for the first parameter based on the second sidestream communication capability and the at least one candidate value comprises:

and if a first candidate value in the at least one candidate value is suitable for the second side communication capability, the first terminal equipment determines the first candidate value as a use value for the first parameter.

28. The method of claim 26, wherein if the at least one candidate value is not applicable to the second sidestream communication capability, the method further comprises:

the first terminal device sends second indication information to the first network device, wherein the second indication information is used for indicating that the at least one candidate value is not applicable to the second sidestream communication capability; or (b)

29. The method of claim 26, wherein the first terminal device determining a usage value for the first parameter based on the second sidestream communication capability and the at least one candidate value comprises:

And if the at least one candidate value is not suitable for the second sidestream communication capability, the first terminal device determines the default value of the first parameter as the use value.

30. The method of claim 25, wherein the method further comprises:

and the first terminal equipment reports the information of the second sidestream communication capability to the first network equipment.

31. The method of claim 25, wherein the method further comprises:

the first terminal equipment sends second configuration information to the second terminal equipment, wherein the second configuration information comprises side communication configuration for communication between the first terminal equipment and the second terminal equipment.

32. A method for capability reporting of a side-link, the method comprising:

the method comprises the steps that first network equipment receives at least one first index reported by first terminal equipment, wherein the at least one first index is used for identifying first side communication capacity supported by the first terminal equipment;

the method further comprises the steps of:

the first network equipment receives a first mapping set and a second mapping set reported by the first terminal equipment;

the method further comprises the steps of:

the first network device determines a combination of at least one sidestream capability identifier corresponding to the at least one first index according to the second mapping set and the at least one first index, and then determines sidestream communication capability represented by each sidestream capability identifier according to the first mapping set so as to determine the first sidestream communication capability.

33. The method of claim 32, wherein the method further comprises:

the first network device determines the first sidestream communication capability according to the first mapping set, the second mapping set, and the at least one first index.

34. The method according to claim 32 or 33, wherein the first network device receives at least one first index reported by the first terminal device, comprising:

the first network device receives the at least one first index associated with at least one sidestream band combination reported by the first terminal device.

35. The method according to claim 32 or 33, characterized in that the method further comprises:

and the first network equipment receives Uu interface information which is reported by the first terminal equipment and is used for controlling sidestream communication.

36. The method of claim 35, wherein the Uu interface information includes at least one of: radio Access Technology (RAT) information of a Uu interface, cell group information of the Uu interface, frequency band information of the Uu interface, cell information of the Uu interface, mode information of the Uu interface and carrier information of the Uu interface.

37. The method of claim 35, wherein the first network device receives Uu interface information for controlling sidestream communication reported by the first terminal device, including:

the first network equipment receives Uu interface information reported by the first terminal equipment based on at least one granularity of the following:

38. The method according to claim 32 or 33, characterized in that the method further comprises:

the first network device sends first indication information to the first terminal device, wherein the first indication information is used for indicating the first terminal device to report the first sidestream communication capability to the first network device.

39. The method of claim 38, wherein the first indication information is used to indicate capability information of a sidestream communication that needs to be reported by the first terminal device.

40. The method of claim 39, wherein the capability information comprises RAT information for sidestream communication, and/or band information for sidestream communication.

41. The method of claim 38, wherein the first indication information is used to indicate RAT information that needs to be reported by the first terminal device.

42. The method according to claim 32 or 33, characterized in that the method further comprises:

the first network device receives at least one second index reported by the first terminal device, wherein the at least one second index is used for identifying a first cellular communication capability supported by the first terminal device.

43. The method of claim 42, further comprising:

the first network equipment receives a third mapping set and a fourth mapping set reported by the first terminal equipment;

44. The method of claim 43, further comprising:

the first network device determines the first cellular communication capability based on the third set of mappings, the fourth set of mappings, and the at least one second index.

45. The method of claim 43, wherein a second set of mappings is independent of the fourth set of mappings;

46. The method of claim 43, wherein a second set of mappings is defined jointly with the fourth set of mappings;

47. The method of claim 45, wherein a RAT for side row communication for the second set of mappings is different from a RAT for cellular communication for the fourth set of mappings.

48. The method of claim 42, wherein the first network device receiving at least one second index reported by the first terminal device comprises:

the first network device receives the at least one second index associated with at least one cellular band combination reported by the first terminal device.

49. The method of claim 48, wherein a first set of band combinations where the at least one cellular band combination is located is defined in conjunction with a second set of band combinations where the at least one sidelink combination is located.

50. The method of claim 48, wherein a first set of frequency band combinations where said at least one cellular frequency band combination is located is independent of a second set of frequency band combinations where said at least one sidelink frequency band combination is located.

51. The method of claim 50 wherein the first set of frequency band combinations includes first information indicating side-row frequency band combinations that are simultaneously supported by a cellular frequency band combination of the at least one cellular frequency band combination.

52. The method of claim 50, wherein the second set of frequency band combinations includes second information indicating which of the at least one sidelink frequency band combinations is simultaneously supported by the supported cellular frequency band combinations.

53. The method of claim 49, wherein a RAT for cellular communication for the first set of band combinations is different from a RAT for side-by-side communication for the second set of band combinations.

54. The method of claim 32, wherein the method further comprises:

the first network device receives a fifth mapping set reported by the first terminal device, wherein the fifth mapping set comprises a mapping relation between at least one sidestream communication capability and at least one index, and the at least one index comprises the at least one first index.

55. The method according to claim 32 or 33, characterized in that the method further comprises:

The first network device sends first configuration information to the first terminal device, wherein the first configuration information comprises side communication configuration for communication between the first terminal device and the second terminal device.

56. The method of claim 55, wherein the first configuration information includes at least one candidate value for a first parameter.

57. The method of claim 56, further comprising:

the first network device receives second indication information sent by the first terminal device, wherein the second indication information is used for indicating that at least one candidate value is not applicable to second sidestream communication capability, and the second sidestream communication capability is sidestream communication capability of communication between the first terminal device and the second terminal device.

58. The method of claim 55, further comprising:

the first network device receives at least one third index reported by the first terminal device, and the at least one third index is used for identifying the sidestream communication capability of communication between the first terminal device and the second terminal device.

59. The method of claim 57, wherein the first network device sending configuration information to the first terminal device comprises:

And the first network equipment sends the configuration information to the first terminal equipment according to the second sidestream communication capability.

60. A terminal device, comprising:

the communication unit is used for reporting at least one first index to the first network equipment, and the at least one first index is used for identifying first side communication capacity supported by the terminal equipment;

the communication unit is further configured to:

reporting a first mapping set and a second mapping set to the first network device;

wherein the first mapping set is used for representing the capability of the terminal device on a single frequency band and comprises a mapping relation between at least one sidestream capability identifier and at least one sidestream communication capability supported by the terminal device, and the second mapping set is used for representing the capability of the terminal device on multiple frequency bands and comprises a mapping relation between at least one combination of the sidestream capability identifiers and at least one index, and the at least one index comprises the at least one first index;

the terminal device further includes:

and the processing unit is used for determining the sidestream capability identification corresponding to the sidestream communication capability on the single frequency band according to the first sidestream communication capability and the first mapping set, and determining the at least one first index corresponding to the combination of the sidestream capability identification on the single frequency band according to the sidestream capability identification on the single frequency band and the second mapping set.

61. The terminal device of claim 60, wherein the communication unit is specifically configured to:

reporting the at least one first index associated with at least one sidelink combination to the first network device.

62. The terminal device of claim 60 or 61, wherein the communication unit is further configured to:

and reporting Uu interface information for controlling sidestream communication to the first network equipment.

63. The terminal device of claim 62, wherein the Uu interface information includes at least one of: radio Access Technology (RAT) information of a Uu interface, cell group information of the Uu interface, frequency band information of the Uu interface, cell information of the Uu interface, mode information of the Uu interface and carrier information of the Uu interface.

64. The terminal device of claim 62, wherein the communication unit is specifically configured to:

reporting the Uu interface information to the first network device based on at least one of:

65. The terminal device of claim 60 or 61, wherein the communication unit is further configured to:

And receiving first indication information sent by the first network equipment, wherein the first indication information is used for indicating the terminal equipment to report the first sidestream communication capability to the first network equipment.

66. The terminal device of claim 65, wherein the first indication information is used to indicate capability information of side-by-side communication that the terminal device needs to report.

67. The terminal device of claim 66, wherein the capability information includes RAT information for sidestream communication and/or band information for sidestream communication.

68. The terminal device of claim 65, wherein the first indication information is used to indicate RAT information that the terminal device needs to report.

69. The terminal device of claim 68, wherein the processing unit is further configured to:

and determining the RAT of the sidestream communication reported to the first network equipment according to the RAT of the cellular communication indicated by the first indication information.

70. The terminal device of claim 69, wherein the processing unit is configured to:

and determining the lateral communication RAT reported to the first network equipment according to the association relation between at least one cellular communication RAT and the lateral communication RAT and the cellular communication RAT indicated by the first indication information.

71. The terminal device of claim 60 or 61, wherein the communication unit is further configured to:

and reporting at least one second index to the first network device, wherein the at least one second index is used for identifying the first cellular communication capability supported by the terminal device.

72. The terminal device of claim 71, wherein the communication unit is further configured to:

reporting a third mapping set and a fourth mapping set to the first network device;

73. The terminal device of claim 72, wherein the second set of mappings is independent of the fourth set of mappings;

74. The terminal device of claim 72, wherein a second set of mappings is defined jointly with the fourth set of mappings;

75. The terminal device of claim 73, wherein a RAT for side row communication for the second set of mappings is different from a RAT for cellular communication for the fourth set of mappings.

76. The terminal device of claim 71, wherein the communication unit is specifically configured to:

reporting the at least one second index associated with at least one cellular band combination to the first network device.

77. The terminal device of claim 76, wherein a first set of band combinations where the at least one cellular band combination is located is defined in conjunction with a second set of band combinations where the at least one sidelink band combination is located.

78. The terminal device of claim 76, wherein a first set of frequency band combinations where the at least one cellular frequency band combination is located is independent of a second set of frequency band combinations where the at least one sidelink frequency band combination is located.

79. The terminal device of claim 78, wherein the first set of frequency band combinations includes first information indicating side-row frequency band combinations that are simultaneously supported by a cellular frequency band combination of the at least one cellular frequency band combination.

80. The terminal device of claim 78, wherein the second set of combinations of frequency bands includes second information indicating combinations of frequency bands supported simultaneously by ones of the at least one side-row band combination.

81. The terminal device of claim 77, wherein the RAT for cellular communication for the first set of band combinations is different than the RAT for side-by-side communication for the second set of band combinations.

82. The terminal device of claim 60, wherein the communication unit is further configured to:

reporting a fifth mapping set to the first network device, wherein the fifth mapping set comprises a mapping relation between at least one sidestream communication capability and at least one index, and the at least one index comprises the at least one first index.

83. The terminal device of claim 60 or 61, wherein the communication unit is further configured to:

And receiving at least one third index sent by the second terminal equipment, wherein the at least one third index is used for identifying second side communication capability of communication between the second terminal equipment and the terminal equipment.

84. The terminal device of claim 83, wherein the communication unit is further configured to:

and receiving first configuration information sent by the first network equipment, wherein the first configuration information comprises side communication configuration for communication between the terminal equipment and the second terminal equipment.

85. The terminal device of claim 84, wherein the first configuration information includes at least one candidate value for a first parameter;

the processing unit is further configured to:

and determining a use value for the first parameter according to the second side communication capability and the at least one candidate value.

86. The terminal device of claim 85, wherein the processing unit is configured to:

and if a first candidate value in the at least one candidate value is suitable for the second side line communication capability, determining the first candidate value as a use value for the first parameter.

87. The terminal device of claim 85, wherein if the at least one candidate value is not applicable to the second sidestream communication capability, the communication unit is further configured to:

Transmitting second indication information to the first network device, wherein the second indication information is used for indicating that the at least one candidate value is not applicable to the second sidestream communication capability; or (b)

The processing unit is further configured to reestablish a connection with the first network device.

88. The terminal device of claim 85, wherein the processing unit is configured to:

and if the at least one candidate value is not suitable for the second sidestream communication capability, determining the default value of the first parameter as the use value.

89. The terminal device of claim 84, wherein the communication unit is further configured to:

and reporting the information of the second sidestream communication capability to the first network device.

90. The terminal device of claim 84, wherein the communication unit is further configured to:

and sending second configuration information to the second terminal equipment, wherein the second configuration information comprises side communication configuration for communication between the terminal equipment and the second terminal equipment.

91. A network device, comprising:

a communication unit, configured to receive at least one first index reported by a first terminal device, where the at least one first index is used to identify a first side communication capability supported by the first terminal device,

The communication unit is further configured to:

receiving a first mapping set and a second mapping set reported by the first terminal equipment;

the network device further includes:

and the processing unit is used for determining the combination of at least one sidestream capability identifier corresponding to the at least one first index according to the second mapping set and the at least one first index, and determining the sidestream communication capability represented by each sidestream capability identifier according to the first mapping set so as to determine the first sidestream communication capability.

92. The network device of claim 91, wherein the network device further comprises:

and the processing unit is used for determining the first sidestream communication capability according to the first mapping set, the second mapping set and the at least one first index.

93. The network device of claim 91 or 92, wherein the communication unit is specifically configured to:

and receiving the at least one first index which is reported by the first terminal equipment and is associated with at least one sidestream band combination.

94. The network device of claim 91 or 92, wherein the communication unit is further configured to:

and receiving Uu interface information which is reported by the first terminal equipment and used for controlling sidestream communication.

95. The network device of claim 94, wherein the Uu interface information comprises at least one of: radio Access Technology (RAT) information of a Uu interface, cell group information of the Uu interface, frequency band information of the Uu interface, cell information of the Uu interface, mode information of the Uu interface and carrier information of the Uu interface.

96. The network device of claim 94, wherein the communication unit is configured to:

receiving Uu interface information reported by the first terminal equipment based on at least one granularity of the following:

97. The network device of claim 91 or 92, wherein the communication unit is further configured to:

And sending first indication information to the first terminal equipment, wherein the first indication information is used for indicating the first terminal equipment to report the first sidestream communication capability to the network equipment.

98. The network device of claim 97, wherein the first indication information is used to indicate capability information of a sidestream communication that the first terminal device needs to report.

99. The network device of claim 98, wherein the capability information comprises RAT information for sidestream communication and/or band information for sidestream communication.

100. The network device of claim 97, wherein the first indication information is used to indicate RAT information that the first terminal device needs to report.

101. The network device of claim 91 or 92, wherein the communication unit is further configured to:

and receiving at least one second index reported by the first terminal equipment, wherein the at least one second index is used for identifying the first cellular communication capability supported by the first terminal equipment.

102. The network device of claim 101, wherein the communication unit is further configured to:

Receiving a third mapping set and a fourth mapping set reported by the first terminal equipment;

103. The network device of claim 102, wherein the network device further comprises:

a processing unit configured to determine the first cellular communication capability according to the third mapping set, the fourth mapping set and the at least one second index.

104. The network device of claim 102, wherein a second set of mappings is independent of the fourth set of mappings;

105. The network device of claim 102, wherein a second set of mappings and the fourth set of mappings are defined jointly;

106. The network device of claim 104, wherein a RAT for side row communication for the second set of mappings is different from a RAT for cellular communication for the fourth set of mappings.

107. The network device of claim 101, wherein the communication unit is specifically configured to:

and receiving the at least one second index which is reported by the first terminal equipment and is associated with at least one cellular frequency band combination.

108. The network device of claim 107, wherein a first set of band combinations where the at least one cellular band combination is located is defined in conjunction with a second set of band combinations where at least one sidelink band combination is located.

109. The network device of claim 107, wherein a first set of band combinations where the at least one cellular band combination is located is independent of a second set of band combinations where the at least one sidelink band combination is located.

110. The network device of claim 109, wherein the first set of frequency band combinations comprises first information indicating side-line frequency band combinations that are simultaneously supported by a cellular frequency band combination of the at least one cellular frequency band combination.

111. The network device of claim 109, wherein the second set of frequency band combinations includes second information indicating a combination of cellular frequency bands that is simultaneously supported by a side-row frequency band combination of the at least one side-row frequency band combination.

112. The network device of claim 108, wherein the RAT for cellular communication for the first set of band combinations is different than the RAT for side-by-side communication for the second set of band combinations.

113. The network device of claim 91, wherein the communication unit is further configured to:

and receiving a fifth mapping set reported by the first terminal equipment, wherein the fifth mapping set comprises a mapping relation between at least one sidestream communication capability and at least one index, and the at least one index comprises the at least one first index.

114. The network device of claim 91 or 92, wherein the communication unit is further configured to:

And sending first configuration information to the first terminal equipment, wherein the first configuration information comprises side communication configuration for communication between the first terminal equipment and the second terminal equipment.

115. The network device of claim 114, wherein the first configuration information includes at least one candidate value for a first parameter.

116. The network device of claim 115, wherein the communication unit is further configured to:

and receiving second indication information sent by the first terminal equipment, wherein the second indication information is used for indicating that at least one candidate value is not applicable to second sidestream communication capability, and the second sidestream communication capability is the sidestream communication capability of communication between the first terminal equipment and the second terminal equipment.

117. The network device of claim 114, wherein the communication unit is further configured to:

and receiving at least one third index reported by the first terminal equipment, wherein the at least one third index is used for identifying the sidestream communication capability of communication between the first terminal equipment and the second terminal equipment.

118. The network device of claim 117, wherein the communication unit is configured to:

And sending the configuration information to the first terminal equipment according to the second side communication capability.

119. A terminal device, comprising: a processor and a memory for storing a computer program, the processor being for invoking and running the computer program stored in the memory, performing the method of any of claims 1 to 31.

120. A network device, comprising: a processor and a memory for storing a computer program, the processor for invoking and running the computer program stored in the memory, performing the method of any of claims 32 to 59.

121. An apparatus, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any one of claims 1 to 31.

122. An apparatus, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any one of claims 32 to 59.

123. A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 31.

124. A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 32 to 59.