CN114503780A

CN114503780A - Method and device for establishing terminal connection

Info

Publication number: CN114503780A
Application number: CN202080069952.2A
Authority: CN
Inventors: 刘建华
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-01-02
Filing date: 2020-01-02
Publication date: 2022-05-13
Also published as: WO2021134754A1

Abstract

The application discloses a method and a device for establishing terminal connection. The method comprises the following steps: and the third equipment sends connection information, wherein the connection information is used for the first terminal to establish connection with the second terminal through the third equipment. And the third equipment sends connection information, wherein the connection information is used for the first terminal to establish connection with the second terminal through the third equipment. Therefore, the first terminal is connected with the second terminal through the third equipment through the connection information sent by the third equipment, and the technical problem that a relay terminal required by connection with a target terminal cannot be found is solved.

Description

Method and device for establishing terminal connection

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for establishing a terminal connection.

Background

In the process of establishing a connection between two terminals through a relay terminal in the prior art, when a plurality of remote terminals establish a connection with the relay terminal, or when a plurality of remote terminals store context (the context includes identification information of the terminal and corresponding Internet Protocol (IP) address information allocated to the terminal) at the relay terminal, a certain remote terminal does not know which relay terminal has a context of a target terminal to establish a connection, and therefore, the technical problem exists that a relay terminal required for establishing a connection with the target terminal cannot be found.

Disclosure of Invention

The application provides a method and a device for establishing terminal connection, which are used for solving the technical problem that a relay terminal required by establishing connection with a target terminal cannot be found.

In a first aspect, a method for establishing a terminal connection is provided in a specific embodiment of the present application, including:

and the third equipment sends connection information, and the connection information is used for the first terminal to establish connection with the second terminal through the third equipment.

In a second aspect, a method for establishing a terminal connection is provided in an embodiment of the present application, including:

and the first terminal establishes connection with the second terminal through the third equipment according to the connection information sent by the third equipment.

In a third aspect, an embodiment of the present application provides an apparatus for establishing a terminal connection, including:

and the sending module is used for sending connection information by the third equipment, and the connection information is used for establishing connection between the first terminal and the second terminal through the third equipment.

In a fourth aspect, an embodiment of the present application provides an apparatus for establishing a terminal connection, including:

and the connection module is used for establishing connection between the first terminal and the second terminal through the third equipment according to the connection information sent by the third equipment.

In a fifth aspect, a specific embodiment of the present application provides a terminal device, where the terminal device includes: the processor, the memorizer, the transmission program which can run on the processor is stored on the memorizer, and when the processor executes the program, the method for establishing the terminal connection is realized.

In a sixth aspect, the present application provides a computer-readable storage medium, which stores a computer program, wherein the computer program, when executed, implements any one of the above methods for establishing a terminal connection.

In a seventh aspect, embodiments of the present application provide a computer program product stored on a non-transitory computer readable storage medium, where the computer program is executed to implement any one of the above methods for establishing a terminal connection.

In an eighth aspect, embodiments of the present application provide a chip, which includes: and the processor is used for calling and running the computer program from the memory, and the equipment provided with the chip executes any one of the methods for establishing the terminal connection.

In a ninth aspect, the present invention provides a computer program, which when executed implements any one of the above methods for establishing a terminal connection.

The technical scheme provided by the specific implementation mode of the application can have the following beneficial effects:

and the third equipment sends connection information, and the connection information is used for the first terminal to establish connection with the second terminal through the third equipment. Therefore, the first terminal is connected with the second terminal through the third equipment through the connection information sent by the third equipment, and the technical problem that a relay terminal required by connection with a target terminal cannot be found is solved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

FIG. 1 is a diagram of a network architecture of a communication system to which embodiments of the present application may be applied;

fig. 2 is a flowchart of a method for establishing a terminal connection according to a first embodiment of the present application;

fig. 3 is a flowchart of a method for establishing a terminal connection according to a second embodiment of the present application;

fig. 4 is a block diagram of an apparatus for establishing a terminal connection according to a third embodiment of the present application;

fig. 5 is a block diagram of an apparatus for establishing a terminal connection according to a fourth embodiment of the present disclosure;

fig. 6 is a schematic hardware structure diagram of an apparatus for establishing a terminal connection according to a fifth application embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the embodiments of the present application. Rather, they are merely examples of methods and apparatus consistent with certain aspects of the present application, as detailed in the appended claims. All other embodiments, which can be derived by a person skilled in the art from the detailed description herein without making any creative effort, shall fall within the scope of protection of the present application.

Fig. 1 is a system architecture of a communication system to which the following detailed description of the present application may be applied. The system architecture includes: terminal equipment A, terminal equipment B and relay terminal C.

In the prior art, the following procedure may be adopted for establishing a connection between two terminal devices a and B via the relay terminal C.

Authorization and configuration: only the terminal Equipment (UE) authorized by the Service authorization configuration can be used as a relay terminal C from the terminal to the terminal (UE-to-UE) in the Proximity-based Service (ProSe) 5G (the 5th Generation, fifth Generation communication technology). These terminal devices will be configured to operate UE-to-UE relays in compliance with the service authorization and mechanism defined in TS 23.287[5 ].

The ProSe 5G UE-to-UE relay terminal C periodically sends relay Discovery information (Discovery message) announcing that it is available for other terminal devices in the service area.

The ProSe 5G UE-to-UE relay terminal C also supports the query and response mode, and the ProSe 5G UE-to-UE relay terminal C monitors the query on the configured Layer2-ID (Layer2-Identity, Layer2 identifier), and responds with its address and corresponding information, so that other terminal devices can establish a unicast (Link) Link with the relay terminal C. This procedure is similar to the unicast L2 link establishment procedure defined in TS 23.287[4] clause 6.3.3.

A terminal device that wants to use the relay terminal C needs to establish a unicast L2 (layer 2) link with the relay terminal C through IP (Internet Protocol) configuration, and the relay terminal C allocates an IP address/prefix to other terminal devices.

As part of the unicast L2 link establishment procedure, the relay terminal C stores the identification information of the remote terminal device and the corresponding IP address/prefix assigned to the terminal device into a DNS (Domain Name Server) entry (entries), the relay terminal C acting as a DNS Server for other terminal devices.

When a source terminal device A needs to establish connection with a target terminal device B through a relay terminal C, a DNS query is sent to the relay terminal C on a unicast link based on the identification information of the target terminal device B, and the relay terminal C responds to the IP address/prefix of the target terminal device B and gives the source terminal device A.

The source terminal device a sends IP data or non-IP data encapsulated in IP to the target terminal device B over a unicast L2 link. The relay terminal C acts as an IP router and sends the packet to the unicast L2 link corresponding to the destination terminal B. Each unicast L2 link is considered an IP interface.

If multiple relay terminals are in proximity, the terminal device may select one or more relay terminals to implement establishment of a unicast L2 link based on the terminal device.

The specific protocol is as follows:

-Authorization and configuration:

-Only the UE authorized by the service authorization configuration can act as a ProSe 5G UE-to-UE Relay.These UEs will be configured according to the service authorization and provisioning mechanism defined in TS 23.287[5]to operate in the UE-to-UE Relay mode.

-ProSe 5G UE-to-UE Relay discovery:

-The ProSe 5G UE-to-UE Relay sends out a Relay Discovery message periodically, announcing its availability for serving other UEs in the area.

-The ProSe 5G UE-to-UE Relay also supports the query and response mode for discovery. The ProSe 5G UE-to-UE Relay listens on a configured Layer2-ID for the query,and would respond with its address and corresponding information to enable to other UE to establish a unicast connection with it. This process is similar to the unicast L2 link establishment process as defined in TS 23.287[4]clause 6.3.3.

-ProSe 5G UE-to-UE Relay operation:

-Any UE that wants to make use of the ProSe 5G UE-to-UE Relay needs to establish a unicast L2 link with the UE-to-UE Relay,with IP configuration. The ProSe 5G UE-to-UE Relay allocates IP address/prefix to the other UEs.

-As part of the unicast L2 link establishment process,the ProSe 5G UE-to-UE Relay stores an associaton of the User Info of the remote UE and the IP address/prefix allocated to the UE into its DNS entries. The ProSe 5G UE-to-UE Relay acts as a DNS server to other UEs.

-When a(source)UE needs to communicate with another(target)UE via the ProSe 5G UE-to-UE Relay,it sends a DNS query for the target UE(based on Target User Info)to the ProSe 5G UE-to-UE Relay over the unicast link,which will return the IP address/prefix for the target UE.

-The source UE sends the IP data or non-IP data encapsulated in IP to the target UE via the unicast L2 link to UE-to-UE Relay.The ProSe 5G UE-to-UE Relay act as an IP router,and forward the packets to the corresponding unicast L2 link towards the target UE.Each of the unicast L2 link is treated as an IP interface.

-If there are multiple ProSe 5G UE-to-UE Relays in the proximity,UE can choose either one or more ProSe 5G UE-to-UE Relays to establish the unicast L2link based on UE implementation.For example,the source UE may choose to use the first ProSe 5G UE-to-UE Relay that returns a positive DNS query for the target UE.

after a plurality of terminal devices establish connection with a relay terminal, or when a plurality of remote terminals store context (the context includes identification information of the terminal device and corresponding IP address allocated to the terminal) in the relay terminal, a certain terminal device does not know which relay terminal has the context of a target terminal to establish connection, and therefore, the technical problem that the relay terminal required for establishing connection with the target terminal cannot be found exists.

The following detailed description of the present application will describe in detail how to find a relay terminal required when establishing a connection with a target terminal, so as to solve the technical problem that a relay terminal required when establishing a connection with a target terminal cannot be found.

In the System architecture, the exemplary communication System may be a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (Long Term Evolution, LTE) System, a Frequency Division Duplex (Frequency Division Duplex, FDD) System, a Time Division Duplex (TDD) System, a Long Term Evolution (Advanced Long Term Evolution, LTE-a) System, a New Radio (NR) System, an Evolution System of an NR System, an Evolution System of an unlicensed band, an unlicensed band (unlicensed band) System of an LTE-to-unlicensed band, an unlicensed band (non-NR) System, a Radio-to-unlicensed band (unlicensed band) System, a Radio-to-unlicensed band (NR) System, a Radio-to-unlicensed band (Radio-to-unlicensed band) System, a Radio-to-unlicensed band (LTE-to-unlicensed band) System, a Radio-to-unlicensed band (NR) System, a Radio-to-unlicensed band (Radio-to-NR) System, a Radio-to-band System, a Radio-to-band (NR) System, a Radio-to-band System, a Radio-to-, Universal Mobile Telecommunications System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication System, Wireless Local Area Network (WLAN), Wireless Fidelity (WiFi), next generation communication System, other communication systems, and the like.

Generally, the conventional Communication system supports a limited number of connections and is easy to implement, however, with the development of Communication technology, the mobile Communication system will support not only conventional Communication, but also, for example, Proximity-based Service (ProSe), Device-to-Device (D2D) Communication, Machine-to-Machine (M2M) Communication, Machine Type Communication (MTC), Vehicle-to-Vehicle (V2V) Communication, and Vehicle networking (V2X), etc., and the embodiments of the present application can also be applied to these Communication systems.

The User terminal according to the embodiments of the present application may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem, and various forms of User Equipment (UE), Mobile Stations (MS), terminal devices (terminal device), and so on. For convenience of description, the above-mentioned devices are collectively referred to as terminal devices.

Additionally, the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association 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.

It should be understood that in the present detailed description, "B corresponding to a" means that B is associated with a, from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.

Fig. 2 is a flowchart of a method for establishing a terminal connection according to a first embodiment of the present application. As shown in fig. 2, the method for establishing a terminal connection may include the following steps:

in step 110, the third device transmits connection information.

Optionally, the connection information includes: discovery information and/or response information.

And the connection information is used for the first terminal to establish connection with the second terminal through the third equipment. The first terminal is a source terminal device, the second terminal is a target terminal device, the third device is a relay terminal, and the first terminal, namely the source terminal device, is connected with the second terminal, namely the target terminal device through the third device, namely the relay terminal.

Optionally, the discovery information includes:

a second terminal to which a third device is connectable; or the like, or, alternatively,

a second terminal to which a third device has been connected; or the like, or, alternatively,

a context stored in the third device, the context comprising identification information of the second terminal and a corresponding internet protocol, IP, address assigned to the second terminal.

Optionally, the Discovery message (Discovery message) includes information of the second terminal, where the information of the second terminal is used to determine a second terminal to which the third device is connectable or has been connected. Optionally, the information of the second terminal includes: user ID (Identity) information on the second terminal and/or device ID information of the second terminal.

Optionally, the discovery information is preconfigured or obtained from the second terminal and stored in the third device by the third device.

Wherein the discovery information may be preconfigured. When the third device periodically transmits discovery information announcing that it is available for other terminal devices in the service area, it can announce, through the discovery information, a second terminal to which the third device is connectable or a second terminal to which the third device has been connected. The specific protocol is as follows:

the ProSe 5G UE-to-UE Relay can anounce the Ues it can connects or it already connects with.

the discovery information may also be obtained by the third device from the second terminal and stored in the third device. As part of the unicast L2 link establishment procedure, the third device stores a context, including identification information of the second terminal and a corresponding IP address assigned to the second terminal, in DNS entries, at which time the third device can announce, through discovery information, the second terminal to which the third device can connect, or the second terminal to which the third device has connected, or a context stored in the third device, including identification information of the second terminal and a corresponding internet protocol IP address assigned to the second terminal. The specific protocol is as follows:

the ProSe 5G UE-to-UE Relay can anounce the UEs it can connects or it already connects or it has the context(User Info of the remote UE and corresponding IP address/prefic allocated to the UE)with in the discovery message.

optionally, the step 110 may include the following steps.

And the third equipment sends response information to the first terminal according to the query information sent by the first terminal.

Optionally, the query information further includes:

pre-configured identification information of the third device.

Optionally, the query information is PC5 information.

The query information comprises identification information of the second terminal, and the response information comprises an Internet Protocol (IP) address which corresponds to the identification information of the second terminal and is distributed to the second terminal. When the first terminal needs to communicate with the second terminal through the third device, the first terminal sends query information to search for the third device connected with the second terminal, the query information may be PC5 information, and the PC5 is a defined interface between the terminal and the terminal, or between the device and the device. And if the DNS entries of the third device store the identification information of the second terminal and the IP address which is corresponding to the identification information of the second terminal and is allocated to the second terminal, the third device sends response information to the first terminal, wherein the response information comprises the IP address which is corresponding to the identification information of the second terminal and is allocated to the second terminal. If the identification information of the third device is configured to the first terminal in advance, the query information may further include the identification information of the third device configured in advance, for example, Layer2-ID in the PC5 information, so that the third device may be directly searched through the identification information of the third device.

The specific protocol is as follows:

When a(source)UE needs to communicate with another(target)UE via a ProSe 5G UE-to-UE Relay,it sends a PC5 message to find a ProSe 5G UE-to-UE Relay which connects with the target UE.In the PC5 message,the source UE includes the Target User Info.If a ProSe 5G UE-to-UE Relay has the association of the Target User Info and the IP address/prefix allocated to the target UE in its DNS entries,the ProSe 5G UE-to-UE Relay responds to the source UE with the IP address/prefix for the target UE.If there is preconfigured ProSe 5G UE-to-UE Relay in the source UE,the source UE includes the ProSe5G UE-to-UE Relay information e.g.Layer2-ID in the PC5message.

in this embodiment, a third device sends connection information, where the connection information is used for the first terminal to establish a connection with the second terminal through the third device. Therefore, the first terminal is connected with the second terminal through the third equipment through the connection information sent by the third equipment, and the technical problem that a relay terminal required by connection with a target terminal cannot be found is solved.

Fig. 3 is a flowchart of a method for establishing a terminal connection according to a second embodiment of the present application. As shown in fig. 3, the method for establishing a terminal connection may include the following steps:

in step 210, the first terminal establishes a connection with the second terminal through the third device according to the connection information sent by the third device.

Optionally, the discovery information includes:

Optionally, the discovery information is preconfigured and/or the third device obtains from the second terminal and stores in the third device.

Optionally, the method for establishing a terminal connection may further include the following steps:

in step 230, the first terminal sends query information to the third device, where the query information is used for the third device to send response information to the first terminal according to the query information;

the query information comprises identification information of the second terminal, and the response information comprises an Internet Protocol (IP) address which corresponds to the identification information of the second terminal and is distributed to the second terminal.

Optionally, the query information further includes:

pre-configured identification information of the third device.

Optionally, the query information is PC5 information.

The implementation process of the method for establishing a terminal connection is detailed in the implementation process of the corresponding step in any one of the methods for establishing a terminal connection provided in the foregoing embodiment, and is not described herein again.

Fig. 4 is a block diagram of an apparatus for establishing a terminal connection according to a third embodiment of the present application. As shown in fig. 4, the apparatus is a third device, which may be a relay terminal, and may include but is not limited to: a sending module 310.

A sending module 310, configured to send, by the third device, connection information, where the connection information is used for the first terminal to establish a connection with the second terminal through the third device.

Optionally, the discovery information includes:

Optionally, the sending module 310 is further configured to:

the third equipment sends response information to the first terminal according to the query information sent by the first terminal;

the query information includes identification information of the second terminal, and the response information includes an internet protocol IP address assigned to the second terminal corresponding to the identification information of the second terminal.

Optionally, the query information further includes:

pre-configured identification information of the third device.

Optionally, the query information is PC5 information.

The implementation process of the function and action of each module and other parts not elaborated or defined in detail in this embodiment are elaborated in the first embodiment, and are not described herein again.

Fig. 5 is a block diagram of an apparatus for establishing a terminal connection according to a fourth embodiment of the present application. As shown in fig. 5, the apparatus is a first terminal, and may include but is not limited to: a connection module 410.

A connection module 410, configured to establish, by the first terminal, a connection with the second terminal through the third device according to the connection information sent by the third device.

Optionally, the discovery information includes:

Optionally, the apparatus may further include, but is not limited to:

a sending module 430, configured to send, by the first terminal, query information to the third device, where the query information is used by the third device to send response information to the first terminal according to the query information;

Optionally, the query information further includes:

pre-configured identification information of the third device.

Optionally, the query information is PC5 information.

The implementation process of the function and action of each module and other parts not elaborated or defined in detail in this embodiment are elaborated in the first and second embodiments, and are not described herein again.

Fig. 6 is a schematic hardware structure diagram of an apparatus for establishing a terminal connection according to a fifth application embodiment. As shown in fig. 6, the apparatus includes: the processor 510, the memory 520, the above components of the device are connected to each other by a bus system.

The memory 520 stores a program that can be executed on the processor 510, and when the program is executed by the processor 510, part or all of the steps of the method for establishing the terminal connection in the first embodiment of the method are implemented.

The processor 510 may also be a single component or may be a collection of processing elements. For example, it may be a CPU, an ASIC, or one or more integrated circuits configured to implement the above method, such as at least one microprocessor DSP, or at least one programmable gate array FPGA, or the like.

The present application further provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and when the computer program is executed, the computer program implements part or all of the steps of the method for establishing a terminal connection in the above method embodiments.

Embodiments of the present application also provide a computer program product, wherein the computer program product is stored on a non-transitory computer readable storage medium, and when executed, the computer program product implements part or all of the steps of the method for establishing a terminal connection as in the above method embodiments. The computer program product may be a software installation package.

The specific embodiment of the present application further provides a chip, including: and the processor is used for calling and running the computer program from the memory, and the equipment provided with the chip executes part or all of the steps of the method for establishing the terminal connection in the method embodiment.

The embodiments of the present application also provide a computer program that when executed implements part or all of the steps of the method of establishing a terminal connection as in the method embodiments described above.

The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied in hardware or may be embodied in software instructions executed by a processor. The software instructions may be comprised of corresponding software modules that may be stored in Random Access Memory (RAM), flash Memory, Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), registers, a hard disk, a removable disk, a compact disc Read Only Memory (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. Additionally, the ASIC may reside in an access network device, a target network device, or a core network device. Of course, the processor and the storage medium may reside as discrete components in an access network device, a target network device, or a core network device.

Those skilled in the art will appreciate that in one or more of the examples described above, the functionality described in the detailed description of the present application can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in the detailed description of the present application are generated in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., Digital Video Disk (DVD)), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

The above-mentioned embodiments, objects, technical solutions and advantages of the present embodiments are further described in detail, it should be understood that the above-mentioned embodiments are only specific embodiments of the present embodiments, and are not intended to limit the scope of the present embodiments, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the present embodiments should be included in the scope of the present embodiments.

It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims

A method for establishing a terminal connection, the method comprising:

and the third equipment sends connection information, wherein the connection information is used for the first terminal to establish connection with the second terminal through the third equipment.
The method of claim 1, wherein the connection information comprises: discovery information and/or response information.
The method of claim 2, wherein the discovery information comprises:

the second terminal to which the third device is connectable; or the like, or, alternatively,

the second terminal to which the third device has been connected; or the like, or, alternatively,

a context stored in the third device, the context including identification information of the second terminal and a corresponding internet protocol, IP, address assigned to the second terminal.
The method according to claim 2 or 3, wherein the discovery information is preconfigured and/or the third device obtains from the second terminal and stores in the third device.
The method of claim 2, wherein sending connection information by the third device comprises:

the third equipment sends the response information to the first terminal according to the query information sent by the first terminal;

the query information includes identification information of the second terminal, and the response information includes an internet protocol IP address allocated to the second terminal corresponding to the identification information of the second terminal.
The method of claim 5, wherein querying information further comprises:

preconfigured identification information of the third device.
The method of claim 5 or 6, wherein the query information is PC5 information.
A method for establishing a terminal connection, the method comprising:

and the first terminal establishes connection with the second terminal through the third equipment according to the connection information sent by the third equipment.
The method of claim 8, wherein the connection information comprises: discovery information and/or response information.
The method of claim 9, wherein the discovery information comprises:

the second terminal to which the third device is connectable; or the like, or, alternatively,

the second terminal to which the third device has been connected; or the like, or, alternatively,

a context stored in the third device, the context including identification information of the second terminal and a corresponding internet protocol, IP, address assigned to the second terminal.
The method according to claim 9 or 10, wherein the discovery information is preconfigured and/or the third device obtains from the second terminal and stores in the third device.
The method of claim 9, further comprising:

the first terminal sends query information to the third equipment, wherein the query information is used for the third equipment to send the response information to the first terminal according to the query information;

the query information includes identification information of the second terminal, and the response information includes an internet protocol IP address allocated to the second terminal corresponding to the identification information of the second terminal.
The method of claim 12, wherein querying information further comprises:

preconfigured identification information of the third device.
The method of claim 12 or 13, wherein the query information is PC5 information.
An apparatus for establishing a terminal connection, the apparatus comprising:

and the sending module is used for sending connection information by the third equipment, wherein the connection information is used for establishing connection between the first terminal and the second terminal through the third equipment.
The apparatus of claim 15, wherein the connection information comprises: discovery information and/or response information.
The apparatus of claim 16, wherein the discovery information comprises:

the second terminal to which the third device is connectable; or the like, or, alternatively,

the second terminal to which the third device has been connected; or the like, or, alternatively,

a context stored in the third device, the context including identification information of the second terminal and a corresponding internet protocol, IP, address assigned to the second terminal.
The apparatus according to claim 16 or 17, wherein the discovery information is preconfigured and/or obtained from the second terminal and stored in the third device by the third device.
The apparatus of claim 16, wherein the sending module is further configured to:

the third equipment sends the response information to the first terminal according to the query information sent by the first terminal;

the query information includes identification information of the second terminal, and the response information includes an internet protocol IP address allocated to the second terminal corresponding to the identification information of the second terminal.
The apparatus of claim 19, wherein the query information further comprises:

preconfigured identification information of the third device.
The apparatus of claim 19 or 20, wherein the query information is PC5 information.
An apparatus for establishing a terminal connection, the apparatus comprising:

and the connection module is used for establishing connection between the first terminal and the second terminal through the third equipment according to the connection information sent by the third equipment.
The apparatus of claim 22, wherein the connection information comprises: discovery information and/or response information.
The apparatus of claim 23, wherein the discovery information comprises:

the second terminal to which the third device is connectable; or the like, or, alternatively,

the second terminal to which the third device has been connected; or the like, or, alternatively,

a context stored in the third device, the context including identification information of the second terminal and a corresponding internet protocol, IP, address assigned to the second terminal.
The apparatus according to claim 23 or 24, wherein the discovery information is preconfigured and/or obtained from the second terminal and stored in the third device by the third device.
The apparatus of claim 23, further comprising:

a sending module, configured to send, by a first terminal, query information to the third device, where the query information is used by the third device to send, according to the query information, the response information to the first terminal;

the query information includes identification information of the second terminal, and the response information includes an internet protocol IP address allocated to the second terminal corresponding to the identification information of the second terminal.
The apparatus of claim 26, wherein the query information further comprises:

preconfigured identification information of the third device.
The apparatus of claim 26 or 27, wherein the query information is PC5 information.
A terminal device, the terminal device comprising: processor, memory, characterized in that said memory stores a program that is executable on said processor, said processor implementing the method of establishing a terminal connection according to any of the preceding claims 1 to 14 when executing said program.
A computer-readable storage medium, characterized in that it stores a computer program, wherein the computer program, when executed, implements the method of establishing a terminal connection according to any one of claims 1 to 14.
A computer program product stored on a non-transitory computer readable storage medium, the computer program when executed implementing a method of establishing a terminal connection according to any one of claims 1 to 14.
A chip, comprising: a processor for calling and running a computer program from a memory, the device on which the chip is installed performing the method of establishing a terminal connection according to any one of claims 1 to 14.
A computer program, characterized in that it implements a method of establishing a terminal connection according to any one of claims 1 to 14 when executed.