CN113491162A

CN113491162A - Communication method and communication device

Info

Publication number: CN113491162A
Application number: CN201980093415.9A
Authority: CN
Inventors: 卢前溪; 杨皓睿; ***
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2021-10-08
Also published as: WO2021031030A1

Abstract

The embodiment of the application discloses a communication method, which comprises the following steps: the method comprises the steps that relay terminal equipment determines first information, wherein the first information comprises first Radio Access Technology (RAT) information and/or first coverage area information of first terminal equipment, and the first terminal equipment is far-end terminal equipment; and the relay terminal equipment sends the first information to network equipment. In the method, after receiving the first information, the network device formulates a proper control strategy according to the first RAT information and/or the first coverage area information of the first terminal device, so that the communication quality of the remote terminal device in a complex communication scene is improved.

Description

Communication method and communication device

Technical Field

The present application relates to the field of communications, and in particular, to a communication method and a communication apparatus.

Background

The fifth generation (5th generation, 5G) communication system supports vehicle to everything (V2X) communication, and V2X communication is a sidelink transmission technology, and one terminal device can directly communicate with another terminal device without forwarding through a network device, thereby having higher spectral efficiency and lower transmission delay.

A side link transmission method comprises the following steps: the terminal device A and the terminal device B establish a sidelink, and communicate with the network device through the terminal device B. Terminal device a may be referred to as a remote terminal device, and terminal device B may be referred to as a relay terminal device. The relay terminal device may report an Identifier (ID) and Internet Protocol (IP) information of the remote terminal device to the network device, and based on the information, the network device may identify the remote terminal device and manage and maintain the bearer and/or session of the remote terminal device.

However, when the remote terminal device faces a complex scenario, for example, when the signal quality of the cell in which the remote terminal device is located is degraded, the network device cannot further manage the remote terminal device based on the above information. How to enhance the management capability of the network device to the remote terminal device is a problem that needs to be solved currently.

Disclosure of Invention

The application provides a communication method and a communication device, which can enhance the management capability of network equipment to remote terminal equipment.

In a first aspect, a communication method is provided, including: the method comprises the steps that relay terminal equipment determines first information, wherein the first information comprises first Radio Access Technology (RAT) information and/or first coverage area information of first terminal equipment, and the first terminal equipment is far-end terminal equipment; and the relay terminal equipment sends the first information to network equipment.

In a second aspect, another communication method is provided, including: the method comprises the steps that first information is sent to relay terminal equipment by first terminal equipment, the first information comprises first Radio Access Technology (RAT) information and/or first coverage area information of the first terminal equipment, and the first terminal equipment is far-end terminal equipment.

In a third aspect, a further communication method is provided, including: the network device receives first information from a relay terminal device, wherein the first information includes first Radio Access Technology (RAT) information and/or first coverage area information of a first terminal device, and the first terminal device is a far-end terminal device.

In a fourth aspect, a communication device is provided for performing the method of the first aspect. In particular, the apparatus comprises functional modules for performing the method in the first aspect.

In a fifth aspect, a communication device is provided for performing the method of the second aspect. In particular, the apparatus comprises functional modules for performing the method in the second aspect.

In a sixth aspect, a communication device is provided for performing the method of the third aspect. In particular, the apparatus comprises functional means for performing the method in the third aspect.

In a seventh aspect, a terminal device is provided that includes 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 to execute the method in the first aspect.

In an eighth aspect, a terminal device is provided that includes 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 to execute the method in the second aspect.

In a ninth aspect, a network device is provided that includes 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 to execute the method in the third aspect.

In a tenth aspect, a chip is provided for performing the method of the first aspect. Specifically, the chip includes: a processor for calling and running the computer program from the memory so that the device on which the chip is installed is used for executing the method of the first aspect.

In an eleventh aspect, a chip is provided for performing the method of the second aspect. Specifically, the chip includes: a processor for calling and running the computer program from the memory so that the device on which the chip is installed is used for executing the method of the second aspect.

In a twelfth aspect, a chip is provided for performing the method of the third aspect. Specifically, the chip includes: a processor for calling and running the computer program from the memory so that the device on which the chip is installed is used for executing the method of the third aspect.

In a thirteenth aspect, a computer-readable storage medium is provided for storing a computer program for causing a computer to perform the method of the first aspect.

In a fourteenth aspect, a computer-readable storage medium is provided for storing a computer program for causing a computer to perform the method of the second aspect.

In a fifteenth aspect, a computer-readable storage medium is provided for storing a computer program for causing a computer to perform the method of the third aspect.

In a sixteenth aspect, there is provided a computer program product comprising computer program instructions for causing a computer to perform the method of the first aspect.

In a seventeenth aspect, a computer program product is provided, comprising computer program instructions for causing a computer to perform the method of the second aspect.

In an eighteenth aspect, there is provided a computer program product comprising computer program instructions for causing a computer to perform the method of the third aspect described above.

In a nineteenth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of the first aspect described above.

In a twentieth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of the second aspect described above.

In a twenty-first aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of the above-mentioned third aspect.

In the communication method provided by the application, after receiving the first information, the network device formulates a proper control strategy according to the first RAT information and/or the first coverage information of the first terminal device, so as to improve the communication quality of the remote terminal device (i.e., the first terminal device) in a complex communication scene.

Drawings

FIG. 1 is a schematic diagram of a communication system suitable for use in the present application;

FIG. 2 is a schematic diagram of a communication method provided herein;

FIG. 3 is a schematic diagram of another communication method provided herein;

FIG. 4 is a schematic diagram of a communication device provided herein;

FIG. 5 is a schematic diagram of another communication device provided herein;

fig. 6 is a schematic diagram of yet another communication device provided herein;

fig. 7 is a schematic diagram of a communication device provided in the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Fig. 1 shows a schematic diagram of a communication system 100 suitable for use in the present application.

System 100 includes network device 110, terminal device 121, and terminal device 122. Terminal device 121 and terminal device 122 may be vehicles with communication functions, vehicle-mounted electronic systems, cell phones, wearable electronic devices, and other communication devices that execute V2X protocols.

The network device 110 may be an evolved node B (eNB) in an LTE system, and may also be a base station (gNB) in a 5G communication system, which are merely examples, and the network device 110 may also be a relay station, an access point, a vehicle-mounted device, a wearable device, and other types of devices.

Before transmitting data through the sidelink, terminal device 121 and terminal device 122 may determine the sidelink transmission resource through an instruction of network device 110. Terminal device 121 and terminal device 122 may not determine the sidelink transmission resource through the instruction of network device 110.

The two examples mentioned above are two transmission modes of sidelink communication, a centralized scheduling transmission Mode (also referred to as Mode a) and a distributed transmission Mode (also referred to as Mode B). In the following, two transmission modes are briefly introduced:

centralized scheduling transmission mode: in this mode, before the terminal device sends data each time, it needs to apply for resources from the network device, and send V2X service data according to the resources allocated by the network device. Because the resources of the terminal equipment are uniformly distributed by the network equipment, the condition that the same resources are distributed by adjacent terminal equipment does not occur, and therefore, a centralized transmission mode can ensure better transmission reliability. However, since signaling interaction is required between the terminal device and the network device each time, the transmission delay for transmitting data in the centralized scheduling transmission mode is relatively longer than that in the distributed transmission mode.

Distributed transmission mode: in a scenario with network coverage, when a network device configures a resource pool for a terminal device through a System Information Block (SIB) or Radio Resource Control (RRC) signaling, the terminal device transmits V2X data, the data may be transmitted through at least part of resources acquired from a master resource pool, randomly selected, based on an interception reservation mechanism, or based on a partial interception reservation mechanism. Under the scene without network coverage, the terminal device autonomously sends data from at least part of resources acquired from the resource pool in the pre-configuration information. The pre-configuration information may be a resource pool configured in the terminal when the terminal is shipped from a factory, or may be information pre-configured by the network device and stored in the terminal. Since the terminal device autonomously selects the resource, a situation may occur in which different terminal devices select the same resource to transmit data, and therefore, transmission collision may occur.

The communication system 100 is only an example, and a communication system applicable to the present application is not limited thereto.

Next, a communication method of the V2X communication system provided by the present application will be described in detail.

Fig. 2 is a communication method provided in the present application. The method 200 comprises the following steps:

s201, establishing connection (link initialization).

The first terminal device is a far-end terminal device, and the first terminal device establishes a sidelink connection with the relay terminal device, wherein the sidelink connection may use a centralized scheduling transmission mode or a distributed transmission mode.

In the present application, "first" and "second" are used to distinguish two different individuals in an object of the same type, and for example, "first terminal device" and "second terminal device" described below mean two different terminal devices, except that there is no other limitation.

S202, the first terminal device sends first information to the relay terminal device.

The first information includes first Radio Access Technology (RAT) information and/or first coverage information.

The first RAT information is used for indicating information of a RAT used by a side link of the first terminal device, for example, the first RAT information may be Long Term Evolution (LTE) side link connection information and/or New Radio (NR) side link connection information.

The first coverage information is used to indicate at least one of:

whether the first terminal device is within a coverage area of the cellular network device;

an identity of a Public Land Mobile Network (PLMN) overlaying the first terminal device;

an identifier covering a Tracking Area (TA) of the first terminal device;

an identity of a Mobility Management Entity (MME) of the first terminal device;

an identity of an access and mobility management function (AMF) of the first terminal device;

a cell identity or a base station identity to which the first terminal device belongs.

The first coverage area information may be current coverage area information of the first terminal device, or coverage area information of the first terminal device when communicating with the network device last time. If the first coverage information is coverage information when the first terminal device last communicates with the network device, the first coverage information may be carried in identification information of the first terminal device, for example, the first coverage information is an identifier of an MME, and the identifier may be carried in a globally unique temporary user equipment identifier (GUTI).

Optionally, the first information may further include at least one of the following information:

a user encrypted identifier (SUCI), a user permanent identifier (SUPI), a Permanent Equipment Identifier (PEI), and a general public user identifier (GPSI).

Optionally, the first information may further include IP information or port information of the first terminal device.

S203, the relay terminal device receives the first information from the first terminal device and sends the first information to the network device.

The network device includes an access network device and/or a core network device. If the relay terminal device sends the first information to the access network device, the access network device may send the first information to the core network device through the S1 interface or the N2 interface. The core network device may store the first information, and send the first information to another network element, for example, to a packet data network gateway (PGW) or a User Plane Function (UPF), so that the PGE or the UPF controls the first terminal device based on a specific policy.

The relay terminal device may also send coverage information of the relay terminal device to the network device, so that the network device formulates a control policy more suitable for the first terminal device. The coverage area information of the relay terminal device may be transmitted together with the first information or may not be transmitted together with the first information.

In some cases, the first information sent by the relay terminal device to the network device may be determined by the relay terminal device itself, for example, after the relay terminal device establishes a connection with the first terminal device, the first RAT information may be determined; for another example, when it is necessary to report the coverage information of the first terminal device when communicating with the network device for the last time, the relay terminal device may report the coverage information of the first terminal device received for the last time to the network device.

After receiving the first information, the network device formulates a proper control strategy according to the first RAT information and/or the first coverage information of the first terminal device, and improves the communication quality of the remote terminal device (i.e., the first terminal device) in a complex communication scene.

After receiving the first information, the network device may further perform the following steps.

S204, sending an Acknowledgement (ACK) to the relay terminal device.

The above method is an example in which the relay terminal device directly receives the first information from the first terminal device, optionally, the relay terminal device may also receive the first information of the first terminal device through other remote terminal devices, as shown in fig. 3, the method 300 includes:

and S301, the second terminal equipment establishes connection with the relay terminal equipment. And the second terminal equipment is the next hop terminal equipment of the first terminal equipment.

S302, the second terminal device establishes connection with the first terminal device.

The present application does not limit the execution sequence of S302 to S301.

S303, the first terminal device sends the first information to the second terminal device.

S303 may be performed before S301, after S301, or simultaneously with S301. The first information in the method 300 is the same as the first information in the method 200, and is not described herein again.

S304, the second terminal device sends the first information to the relay terminal device.

Optionally, the second terminal device may further send second information to the relay terminal device, where the second information includes second RAT information and/or second coverage information of the second terminal device. The second RAT information may be RAT information of a connection between the second terminal device and the first terminal device, and may also be RAT information of a connection between the second terminal device and the relay terminal device.

S305, the relay terminal device sends the first information to the network device.

S306, sends ACK to the relay terminal device.

Examples of the communication methods provided herein are described in detail above. It is to be understood that the communication device includes hardware structures and/or software modules for performing the respective functions in order to realize the above functions. Those of skill in the art would readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware 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.

The communication device may be divided into functional units according to the above method examples, for example, each function may be divided into each functional unit, or two or more functions may be integrated into one processing unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. It should be noted that the division of the units in the present application is schematic, and is only one division of logic functions, and there may be another division manner in actual implementation.

Fig. 4 is a schematic structural diagram of a communication device provided in the present application. The apparatus 400 includes a processing unit 410, and optionally, may further include a transmitting unit 420 and a receiving unit 430, where the transmitting unit 420 can perform the transmitting step under the control of the processing unit 410, and the receiving unit 430 can perform the receiving step (or the obtaining step) under the control of the processing unit 410.

The processing unit 410 is configured to: determining first information, wherein the first information comprises first RAT information and/or first coverage area information of first terminal equipment, and the first terminal equipment is far-end terminal equipment;

the sending unit 420 is configured to: and sending the first information to a network device.

Optionally, the first RAT information comprises RAT information of a sidelink between the first terminal device and the apparatus 400.

Optionally, the first RAT information comprises NR information and/or LTE information.

Optionally, the first coverage information is used to indicate at least one of: whether the first terminal device is within a coverage area of a cellular network device; an identity of a PLMN covering the first terminal device; an identity of a TA covering the first terminal device; an identity of an MME of the first terminal device; an identity of the AMF of the first terminal device; the cell identity or base station identity of the first terminal device.

Optionally, the first coverage area information is current coverage area information of the first terminal device.

Optionally, the first coverage area information is coverage area information when the first terminal device communicates with the network device last time.

Optionally, the first coverage area information is carried in the identification information of the first terminal device.

Optionally, the identification information of the first terminal device is a GUTI.

Optionally, the first information further includes at least one of the following information: SUCI, SUPI, PEI, GPSI.

Optionally, the network device includes an access network device and/or a core network device.

Optionally, the processing unit 410 is specifically configured to: the receiving unit 430 is configured to receive the first information of the first terminal device from a second terminal device, where the second terminal device is a remote terminal device.

Optionally, the processing unit 410 is further configured to: and determining that the second terminal equipment is the next hop terminal equipment of the first terminal equipment according to the first information of the first terminal equipment received from the second terminal equipment.

Optionally, the processing unit 410 is further configured to: receiving, by the receiving unit, second information from the second terminal device, where the second information includes second RAT information and/or second coverage information of the second terminal device; the second information is sent to the network device through the sending unit 420.

Optionally, the sending unit 420 is further configured to: and sending the coverage range information of the device to the network equipment.

Fig. 5 is a schematic structural diagram of another communication device provided in the present application. The apparatus 500 comprises a processing unit 510 and a transmitting unit 520, the transmitting unit 520 being capable of performing the transmitting step under the control of the processing unit 510.

The sending unit 520 is configured to perform: and sending first information to the relay terminal equipment, wherein the first information comprises first RAT information and/or first coverage area information of the device, and the device is remote terminal equipment.

Optionally, the first RAT information comprises RAT information of a sidelink between the apparatus and the relay terminal device.

Optionally, the first coverage information is used to indicate at least one of: whether the apparatus is within a coverage area of a cellular network device; an identification of a PLMN overlaying the device; an identity of a TA overlaying the apparatus; an identity of an MME of the apparatus; an identity of an access and mobility management function, AMF, of the apparatus; a cell identity or a base station identity of the apparatus.

Optionally, the first coverage area information is current coverage area information of the device.

Optionally, the first coverage information is coverage information of the last time the apparatus communicates with the network device.

Optionally, the first coverage information is carried in identification information of the apparatus.

Optionally, the identification information of the apparatus is a GUTI.

Optionally, the sending unit 520 is specifically configured to: and sending the first information to the relay terminal equipment through second terminal equipment, wherein the second terminal equipment is far-end terminal equipment.

Fig. 6 is a schematic structural diagram of a communication device provided in the present application. The apparatus 600 includes a processing unit 610, and optionally, may further include a transmitting unit 620 and a receiving unit 630, where the transmitting unit 620 is capable of performing the transmitting step under the control of the processing unit 610, and the receiving unit 630 is capable of performing the receiving step (or the obtaining step) under the control of the processing unit 610.

The processing unit 610 is configured to control the receiving unit 630 to perform:

receiving first information from a relay terminal device, wherein the first information includes first RAT information and/or first coverage information of a first terminal device, and the first terminal device is a far-end terminal device.

Optionally, the first RAT information includes RAT information of a sidelink between the first terminal device and the relay terminal device.

Optionally, the first coverage information is coverage information of the first terminal device when communicating with the apparatus last time.

Optionally, the apparatus is a core network device, and the receiving unit 630 is specifically configured to: receiving the first information through an S1 interface or an N2 interface.

Optionally, the apparatus is an access network device, and the sending unit 620 is configured to: and sending the first information of the first terminal equipment to core network equipment through an S1 interface or an N2 interface.

Optionally, the receiving unit 630 is further configured to: receiving, from the relay terminal device, coverage information of the relay terminal device.

Optionally, the receiving unit 630 is further configured to: and receiving second information from the relay terminal device, where the second information includes second RAT information and/or second coverage information of a second terminal device, and the second terminal device is a next hop terminal device of the first terminal device.

Optionally, the sending unit 620 is further configured to: and sending feedback information to the relay terminal equipment, wherein the feedback information is used for indicating that the first information is successfully received.

Fig. 7 shows a schematic structural diagram of a communication device provided in the present application. The dashed lines in fig. 7 indicate that the unit or the module is optional. The apparatus 700 may be used to implement the methods described in the method embodiments above. The device 700 may be an end device or a network device or chip.

The apparatus 700 includes one or more processors 701, and the one or more processors 701 may enable the apparatus 700 to implement the method in the method embodiment corresponding to fig. 2 or fig. 3. The processor 701 may be a general purpose processor or a special purpose processor. For example, the processor 701 may be a Central Processing Unit (CPU). The CPU may be configured to control the apparatus 700, execute software programs, and process data of the software programs. The device 700 may further include a communication unit 705 to enable input (reception) and output (transmission) of signals.

For example, the device 700 may be a chip and the communication unit 705 may be an input and/or output circuit of the chip, or the communication unit 705 may be a communication interface of the chip, and the chip may be a component of a terminal device or a network device or other wireless communication device.

Also for example, the device 700 may be a terminal device or a network device, and the communication unit 705 may be a transceiver of the terminal device or the network device, or the communication unit 705 may be a transceiver circuit of the terminal device or the network device.

The device 700 may comprise one or more memories 702 on which programs 704 are stored, the programs 704 being executable by the processor 701 to generate instructions 703, such that the processor 701 performs the method described in the above method embodiments according to the instructions 703. Optionally, data may also be stored in the memory 702. Alternatively, the processor 701 may also read data stored in the memory 702, the data may be stored at the same memory address as the program 704, or the data may be stored at a different memory address from the program 704.

The processor 701 and the memory 702 may be separately configured, or may be integrated together, for example, on a single board of a network device or a System On Chip (SOC) of a terminal device.

Device 700 may also include an antenna 706. The communication unit 705 is used for performing transceiving functions of the device 700 through the antenna 706.

The specific manner in which the processor 701 executes the communication method may be as described in relation to the method embodiments.

It should be understood that the steps of the above-described method embodiments may be performed by logic circuits in the form of hardware or instructions in the form of software in the processor 701. The processor 701 may be a CPU, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or other programmable logic device, such as a discrete gate, a transistor logic device, or a discrete hardware component.

The application also provides a computer program product which, when executed by the processor 701, implements the method according to any of the method embodiments of the application.

The computer program product may be stored in the memory 702, for example, as the program 704, and the program 704 is finally converted into an executable object file capable of being executed by the processor 701 through preprocessing, compiling, assembling, linking and the like.

The present application also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a computer, implements the method of any of the method embodiments of the present application. The computer program may be a high-level language program or an executable object program.

Such as memory 702. Memory 702 may be either volatile memory or nonvolatile memory, or memory 702 may include both volatile and nonvolatile memory. The non-volatile 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. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes and the generated technical effects of the above-described apparatuses and devices may refer to the corresponding processes and technical effects in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, the disclosed system, apparatus and method can be implemented in other ways. For example, some features of the method embodiments described above may be omitted, or not performed. The above-described embodiments of the apparatus are merely exemplary, the division of the unit is only one logical function division, and there may be other division ways in actual implementation, and a plurality of units or components may be combined or integrated into another system. In addition, the coupling between the units or the coupling between the components may be direct coupling or indirect coupling, and the coupling includes electrical, mechanical or other connections.

It should be understood that, in the various embodiments of the present application, the sequence numbers of the processes do not mean the execution sequence, and the execution sequence of the processes should be determined by the functions and the inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Additionally, the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association relationship describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In short, the above description is only a preferred embodiment of the present disclosure, and is not intended to limit the scope of the present disclosure. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

A method of communication, comprising:

the method comprises the steps that relay terminal equipment determines first information, wherein the first information comprises first Radio Access Technology (RAT) information and/or first coverage area information of first terminal equipment, and the first terminal equipment is far-end terminal equipment;

and the relay terminal equipment sends the first information to network equipment.
The method of claim 1, wherein the first RAT information comprises RAT information for a sidelink between the first terminal device and the relay terminal device.
The method according to claim 1 or 2, wherein the first RAT information comprises new radio NR information and/or long term evolution, LTE, information.
The method according to any of claims 1 to 3, wherein the first coverage information is used to indicate at least one of:

whether the first terminal device is within a coverage area of a cellular network device;

an identity of a public land mobile network, PLMN, overlaying the first terminal device;

an identifier covering a tracking area TA of the first terminal device;

an identity of a mobility management entity, MME, of the first terminal device;

an identifier of an access and mobility management function (AMF) of the first terminal device;

the cell identity or base station identity of the first terminal device.
The method according to any of claims 1 to 4, wherein the first coverage information is current coverage information of the first terminal device.
The method according to any of claims 1 to 4, wherein the first coverage information is coverage information of the last time the first terminal device communicated with the network device.
The method of claim 6, wherein the first coverage information is carried in identification information of the first terminal device.
The method according to claim 7, wherein the identification information of the first terminal device is a globally unique temporary user equipment identity, GUTI.
The method according to any one of claims 1 to 8, wherein the first information further comprises at least one of the following information:

a user encryption identity SUCI, a user permanent identity SUPI, a permanent device identity PEI, a generic public user identity GPSI.
The method according to any of claims 1 to 9, wherein the network device comprises an access network device and/or a core network device.
The method according to any of claims 1 to 10, wherein the relay terminal device determines the first information, comprising:

the relay terminal device receives first information of the first terminal device from a second terminal device, wherein the second terminal device is a far-end terminal device.
The method of claim 11, further comprising:

and the relay terminal equipment determines that the second terminal equipment is the next hop terminal equipment of the first terminal equipment according to the first information of the first terminal equipment received from the second terminal equipment.
The method of claim 11 or 12, further comprising:

the relay terminal device receives second information from the second terminal device, wherein the second information comprises second RAT information and/or second coverage area information of the second terminal device;

and the relay terminal equipment sends the second information to the network equipment.
The method according to any one of claims 1 or 13, further comprising:

and the relay terminal equipment sends the coverage area information of the relay terminal equipment to the network equipment.
A method of communication, comprising:

the method comprises the steps that first information is sent to relay terminal equipment by first terminal equipment, the first information comprises first Radio Access Technology (RAT) information and/or first coverage area information of the first terminal equipment, and the first terminal equipment is far-end terminal equipment.
The method of claim 15, wherein the first RAT information comprises RAT information for a sidelink between the first terminal device and the relay terminal device.
The method according to claim 15 or 16, wherein the first RAT information comprises new radio NR information and/or long term evolution, LTE, information.
The method according to any of claims 15 to 17, wherein the first coverage information is used to indicate at least one of:

whether the first terminal device is within a coverage area of a cellular network device;

an identity of a public land mobile network, PLMN, overlaying the first terminal device;

an identifier covering a tracking area TA of the first terminal device;

an identity of a mobility management entity, MME, of the first terminal device;

an identifier of an access and mobility management function (AMF) of the first terminal device;

the cell identity or base station identity of the first terminal device.
The method of claim 18, wherein the first coverage information is current coverage information of the first terminal device.
The method of claim 18, wherein the first coverage information is coverage information of the last time the first terminal device communicated with a network device.
The method of claim 20, wherein the first coverage information is carried in identification information of the first terminal device.
The method according to claim 21, wherein the identification information of the first terminal device is a globally unique temporary user equipment identity, GUTI.
The method according to any of claims 20 to 22, wherein the network device comprises an access network device and/or a core network device.
The method according to any one of claims 15 to 23, wherein the first information further comprises at least one of the following information:

a user encryption identity SUCI, a user permanent identity SUPI, a user equipment identity PEI and a general public user identity GPSI.
The method according to any of claims 15 to 24, wherein the first terminal device sends first information to a relay terminal device, comprising:

and the first terminal equipment sends the first information to the relay terminal equipment through second terminal equipment, wherein the second terminal equipment is far-end terminal equipment.
A method of communication, comprising:

the network device receives first information from a relay terminal device, wherein the first information includes first Radio Access Technology (RAT) information and/or first coverage area information of a first terminal device, and the first terminal device is a far-end terminal device.
The method of claim 26, wherein the first RAT information comprises RAT information for a sidelink between the first terminal device and the relay terminal device.
The method according to claim 26 or 27, wherein the first RAT information comprises new radio NR information and/or long term evolution, LTE, information.
The method according to any of the claims 26 to 28, wherein the first coverage information is used to indicate at least one of the following:

whether the first terminal device is within a coverage area of a cellular network device;

an identity of a public land mobile network, PLMN, overlaying the first terminal device;

an identifier covering a tracking area TA of the first terminal device;

an identity of a mobility management entity, MME, of the first terminal device;

an identifier of an access and mobility management function (AMF) of the first terminal device;

the cell identity or base station identity of the first terminal device.
The method of claim 29, wherein the first coverage information is current coverage information of the first terminal device.
The method of claim 29, wherein the first coverage information is coverage information of the last time the first terminal device communicated with the network device.
The method of claim 31, wherein the first coverage information is carried in identification information of the first terminal device.
The method according to claim 32, wherein the identification information of the first terminal device is a globally unique temporary user equipment identity, GUTI.
The method according to any one of claims 26 to 33, wherein the network device is a core network device, and the network device receives first information from a relay terminal device, and the method comprises:

the core network device receives the first information through an S1 interface or an N2 interface.
The method of any one of claims 26 to 33, wherein the network device is an access network device, the method further comprising:

and the access network equipment sends the first information of the first terminal equipment to core network equipment through an S1 interface or an N2 interface.
The method of any one of claims 26 to 35, further comprising:

the network device receives coverage information of the relay terminal device from the relay terminal device.
The method of any one of claims 26 to 36, further comprising:

the network device receives second information from the relay terminal device, where the second information includes second RAT information and/or second coverage information of a second terminal device, and the second terminal device is a next hop terminal device of the first terminal device.
The method according to any one of claims 26 to 37, wherein the first information further comprises at least one of the following information:

a user encryption identity SUCI, a user permanent identity SUPI, a permanent device identity PEI, a generic public user identity GPSI.
The method of any one of claims 26 to 38, further comprising:

and the network equipment sends feedback information to the relay terminal equipment, wherein the feedback information is used for indicating that the first information is successfully received.
A communication device, comprising a processing unit and a transmitting unit,

the processing unit is configured to: determining first information, wherein the first information comprises first Radio Access Technology (RAT) information and/or first coverage area information of first terminal equipment, and the first terminal equipment is far-end terminal equipment;

the sending unit is used for: and sending the first information to a network device.
The apparatus of claim 40, wherein the first RAT information comprises RAT information for a sidelink between the first terminal device and the apparatus.
The apparatus of claim 40 or 41, wherein the first RAT information comprises new radio NR information and/or Long Term Evolution (LTE) information.
The apparatus according to any of claims 40-42, wherein the first coverage information is used to indicate at least one of:

whether the first terminal device is within a coverage area of a cellular network device;

an identity of a public land mobile network, PLMN, overlaying the first terminal device;

an identifier covering a tracking area TA of the first terminal device;

an identity of a mobility management entity, MME, of the first terminal device;

an identifier of an access and mobility management function (AMF) of the first terminal device;

the cell identity or base station identity of the first terminal device.
The apparatus according to any of claims 40-43, wherein the first coverage information is current coverage information of the first terminal device.
The apparatus according to any of claims 40-43, wherein the first coverage information is coverage information of the last time the first terminal device communicated with the network device.
The apparatus of claim 45, wherein the first coverage information is carried in identification information of the first terminal device.
The apparatus of claim 46, wherein the identification information of the first terminal device is a globally unique temporary user equipment identification (GUTI).
The apparatus according to any one of claims 40 to 47, wherein the first information further comprises at least one of:

a user encryption identity SUCI, a user permanent identity SUPI, a permanent device identity PEI, a generic public user identity GPSI.
The apparatus according to any of claims 40 to 48, wherein the network device comprises an access network device and/or a core network device.
The apparatus according to any one of claims 40 to 49, wherein the apparatus further comprises a receiving unit, the processing unit being specifically configured to:

and receiving the first information of the first terminal equipment from a second terminal equipment through the receiving unit, wherein the second terminal equipment is a far-end terminal equipment.
The apparatus as recited in claim 50, wherein said processing unit is further configured to:

and determining that the second terminal equipment is the next hop terminal equipment of the first terminal equipment according to the first information of the first terminal equipment received from the second terminal equipment.
The apparatus according to claim 50 or 51, wherein the processing unit is further configured to:

receiving, by the receiving unit, second information from the second terminal device, where the second information includes second RAT information and/or second coverage information of the second terminal device;

and sending the second information to the network equipment through the sending unit.
The apparatus according to any of claims 40 or 52, wherein the sending unit is further configured to:

and sending the coverage range information of the device to the network equipment.
A communication apparatus, comprising a processing unit and a transmitting unit, wherein the processing unit is configured to control the transmitting unit to perform:

and sending first information to a relay terminal device, wherein the first information comprises first Radio Access Technology (RAT) information and/or first coverage area information of the device, and the device is a remote terminal device.
The apparatus of claim 54, wherein the first RAT information comprises RAT information for a sidelink between the apparatus and the relay terminal device.
The apparatus of claim 54 or 55, wherein the first RAT information comprises new radio NR information and/or Long Term Evolution (LTE) information.
The apparatus according to any of claims 54-56, wherein the first coverage information is indicative of at least one of:

whether the apparatus is within a coverage area of a cellular network device;

an identity of a public land mobile network, PLMN, overlaying the apparatus;

an identification of a tracking area TA covering the apparatus;

an identity of a mobility management entity, MME, of the apparatus;

an identity of an access and mobility management function, AMF, of the apparatus;

a cell identity or a base station identity of the apparatus.
The apparatus of claim 57, wherein the first coverage information is current coverage information of the apparatus.
The apparatus of claim 57, wherein the first coverage information is coverage information of a last time the apparatus communicates with a network device.
The apparatus according to claim 59, wherein the first coverage information is carried in identification information of the apparatus.
The apparatus of claim 60, wherein the identification information of the apparatus is a globally unique temporary user equipment identification (GUTI).
The apparatus according to any of claims 59 to 61, wherein the network device comprises an access network device and/or a core network device.
The apparatus according to any one of claims 54-62, wherein the first information further comprises at least one of:

a user encryption identity SUCI, a user permanent identity SUPI, a user equipment identity PEI and a general public user identity GPSI.
The apparatus according to any one of claims 54 to 63, wherein the sending unit is specifically configured to:

and sending the first information to the relay terminal equipment through second terminal equipment, wherein the second terminal equipment is far-end terminal equipment.
A communication apparatus, comprising a processing unit and a receiving unit, wherein the processing unit is configured to control the receiving unit to perform:

receiving first information from a relay terminal device, wherein the first information includes first Radio Access Technology (RAT) information and/or first coverage information of a first terminal device, and the first terminal device is a far-end terminal device.
The apparatus of claim 65, wherein the first RAT information comprises RAT information for a sidelink between the first terminal device and the relay terminal device.
The apparatus of claim 65 or 66, wherein the first RAT information comprises new radio NR information and/or Long Term Evolution (LTE) information.
The apparatus according to any of claims 65 to 67, wherein the first coverage information is indicative of at least one of:

whether the first terminal device is within a coverage area of a cellular network device;

an identity of a public land mobile network, PLMN, overlaying the first terminal device;

an identifier covering a tracking area TA of the first terminal device;

an identity of a mobility management entity, MME, of the first terminal device;

an identifier of an access and mobility management function (AMF) of the first terminal device;

the cell identity or base station identity of the first terminal device.
The apparatus of claim 68, wherein the first coverage information is current coverage information of the first terminal device.
The apparatus of claim 68, wherein the first coverage information is coverage information of the last time the first terminal device communicated with the apparatus.
The apparatus of claim 70, wherein the first coverage information is carried in identification information of the first terminal device.
The apparatus of claim 71, wherein the identification information of the first terminal device is a globally unique temporary user equipment identification (GUTI).
The apparatus according to any one of claims 65 to 72, wherein the apparatus is a core network device, and the receiving unit is specifically configured to:

receiving the first information through an S1 interface or an N2 interface.
The apparatus according to any of claims 65 to 72, wherein the apparatus is an access network device, the apparatus further comprising a sending unit configured to:

and sending the first information of the first terminal equipment to core network equipment through an S1 interface or an N2 interface.
The apparatus according to any one of claims 65 to 74, wherein the receiving unit is further configured to:

receiving, from the relay terminal device, coverage information of the relay terminal device.
The apparatus according to any one of claims 65 to 75, wherein the receiving unit is further configured to:

and receiving second information from the relay terminal device, where the second information includes second RAT information and/or second coverage information of a second terminal device, and the second terminal device is a next hop terminal device of the first terminal device.
The apparatus according to any one of claims 65 to 76, wherein the first information further comprises at least one of:

a user encryption identity SUCI, a user permanent identity SUPI, a permanent device identity PEI, a generic public user identity GPSI.
The apparatus according to any one of claims 65 to 77, further comprising a transmitting unit configured to:

and sending feedback information to the relay terminal equipment, wherein the feedback information is used for indicating that the first information is successfully received.
A terminal device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory, to perform the method of any of claims 1 to 14, or to perform the method of any of claims 15 to 25.
A network device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 26 to 39.
A chip, comprising: a processor for calling and running the computer program from the memory so that the device in which the chip is installed performs: the method of any one of claims 1 to 14, or the method of any one of claims 15 to 25.
A chip, comprising: a processor for calling and running the computer program from the memory so that the device in which the chip is installed performs: the method of any one of claims 26 to 39.
A computer-readable storage medium storing a computer program for causing a computer to execute: the method of any one of claims 1 to 14, or the method of any one of claims 15 to 25.
A computer-readable storage medium storing a computer program for causing a computer to execute: the method of any one of claims 26 to 39.
A computer program product comprising computer program instructions that cause a computer to perform: the method of any one of claims 1 to 14, or the method of any one of claims 15 to 25.
A computer program product comprising computer program instructions that cause a computer to perform: the method of any one of claims 26 to 39.
A computer program, characterized in that the computer program causes a computer to execute: the method of any one of claims 1 to 14, or the method of any one of claims 15 to 25.
A computer program, characterized in that the computer program causes a computer to execute: the method of any one of claims 26 to 39.