Quality of service implementation method, relay transmission system and storage medium

Abstract

The invention provides a service quality implementation method, a relay transmission system and a storage medium, and relates to the technical field of communication. The service quality implementation method disclosed by the invention is executed by each relay terminal on a relay path, and comprises the following steps: taking information from a previous node on the relay path as first service quality information; generating second service quality information and third service quality information according to the first service quality information; the second service quality information is sent to the previous node, the third service quality information is sent to the next node on the relay path, and the number of the relay terminals on the relay path is larger than 1.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a method for implementing quality of service, a relay transmission system, and a storage medium. Background Art

[0002] The terminal devices at the end of the network are connected through inter-device communication technology to form a near-field communication network, and incorporated into the operation range of the operator's 6G network system, which can jointly form a near-field communication system controlled by the operator's network. This new 6G-oriented near-field communication system uses U2N (UE to Network) Relay to improve the high-frequency coverage capability of the 6G network system.

[0003] The current 3GPP involves a scenario in which terminals communicate with each other via a one-hop relay. Summary of the invention

[0004] One objective of the present disclosure is to propose a QoS (Quality of Service) implementation scheme in multi-hop relay communication.

[0005] According to one aspect of some embodiments of the present disclosure, a QoS implementation method is proposed, which is executed by each relay terminal on the relay path, including: using information from the previous node on the relay path as first service quality information; generating second service quality information and third service quality information based on the first service quality information; sending the second service quality information to the previous node, and sending the third service quality information to the next node on the relay path, wherein the number of relay terminals on the relay path is greater than 1.

[0006] In some embodiments, generating second quality of service information and third quality of service information based on first quality of service information includes: acquiring a first quality of service parameter between a previous node and a target terminal of a relay path based on the first quality of service information; dividing the first quality of service parameter into a second quality of service parameter and a third quality of service parameter; generating second quality of service information based on the second quality of service parameter, and generating third quality of service information based on the third quality of service parameter.

[0007] In some embodiments, the second quality of service parameter is a quality of service parameter between the current node and the previous node; and the third quality of service parameter is a quality of service parameter between the current node and a target terminal of the relay path.

[0008] In some embodiments, the first quality of service information also includes a layer 2 identifier of the source terminal and a layer 2 identifier of the target terminal.

[0009] In some embodiments, the first quality of service information also includes an expected quality of service parameter between the previous node and the current terminal; dividing the quality of service parameter into a second quality of service parameter and a third quality of service parameter includes: the current terminal determines the second quality of service parameter based on the expected quality of service parameter between the previous node and the current terminal, and determines the third quality of service parameter based on the first quality of service parameter and the second quality of service parameter.

[0010] In some embodiments, information from a previous node on a relay path includes: information acquired through at least one of a link establishment or link modification process; sending second quality of service information to the previous node includes: sending the second quality of service information to the previous node through at least one of a link establishment or link modification process; sending third quality of service information to a next node on the relay path includes: sending the third quality of service information to the next node through at least one of a link establishment or link modification process.

[0011] In some embodiments, when the previous node is a source terminal, the current terminal and the next node are relay terminals; and when the previous node and the current terminal are relay terminals, the next node is a relay terminal or a target terminal.

[0012] In some embodiments, sending the third quality of service information to the next node on the relay path includes: sending the third quality of service information to the next node as the target terminal; the method also includes: receiving a fourth quality of service parameter between the target terminal and the current terminal fed back by the target terminal, wherein, after receiving the fourth quality of service parameter, performing an operation of sending the second quality of service information to the previous node.

[0013] According to one aspect of some embodiments of the present disclosure, a relay transmission system is proposed, comprising a plurality of relay terminals located on a relay path between a source terminal and a target terminal and connected in series, wherein each relay terminal is configured to: use information from a previous node on the relay path as first quality of service information; generate second quality of service information and third quality of service information based on the first quality of service information; send the second quality of service information to the previous node, and send the third quality of service information to the next node on the relay path.

[0014] In some embodiments, the relay terminal is configured to: obtain a first quality of service parameter between the previous node and the target terminal of the relay path based on the first quality of service information; split the first quality of service parameter into a second quality of service parameter and a third quality of service parameter; generate second quality of service information based on the second quality of service parameter, and generate third quality of service information based on the third quality of service parameter.

[0015] In some embodiments, the second quality of service parameter is a quality of service parameter between the current node and the previous node; and the third quality of service parameter is a quality of service parameter between the current node and a target terminal of the relay path.

[0016] In some embodiments, the first quality of service information also includes a layer 2 identifier of the source terminal and a layer 2 identifier of the target terminal.

[0017] In some embodiments, the first quality of service information also includes expected quality of service parameters between the previous node and the current terminal; the relay terminal is configured to: determine the second quality of service parameter based on the expected quality of service parameters between the previous node and the relay terminal; and determine the third quality of service parameter based on the first quality of service parameter and the second quality of service parameter.

[0018] In some embodiments, the relay terminal is configured to: use the information sent by the previous node obtained through at least one of the link establishment or link modification processes as the first service quality information; send the second service quality information to the previous node through at least one of the link establishment or link modification processes; and send the third service quality information to the next node through at least one of the link establishment or link modification processes.

[0019] In some embodiments, the system further includes: a source terminal configured to generate end-to-end service quality information and send it to a relay terminal as a next node, wherein the end-to-end service quality information includes a service quality parameter between the source terminal and the target terminal.

[0020] In some embodiments, the system also includes: a target terminal, configured to, after receiving the third quality of service information, feedback a fourth quality of service parameter between the target terminal and the current terminal to a relay terminal that is a previous node on the relay path; and the relay node is configured to, after receiving the fourth quality of service parameter, execute an operation of sending the second quality of service information to the previous node.

[0021] According to one aspect of some embodiments of the present disclosure, a relay transmission system is proposed, comprising: a memory; and a processor coupled to the memory, wherein the processor is configured to execute any one of the above QoS implementation methods based on instructions stored in the memory.

[0022] According to one aspect of some embodiments of the present disclosure, a computer-readable storage medium is provided, on which computer program instructions are stored, and when the instructions are executed by a processor, the steps of any one of the above QoS implementation methods are implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of the present disclosure. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation on the present disclosure. In the drawings:

[0024] Figure 1 The present invention is a flowchart of some embodiments of the QoS implementation method of the present invention.

[0025] Figure 2 The present invention is a signaling interaction diagram of some embodiments of the QoS implementation method of the present invention.

[0026] Figure 3 Schematic diagram of some embodiments of the relay transmission system disclosed in the present invention.

[0027] Figure 4 Schematic diagrams of other embodiments of the relay transmission system disclosed in the present invention.

[0028] Figure 5 Schematic diagrams of some further embodiments of the relay transmission system disclosed herein. DETAILED DESCRIPTION

[0029] The technical solution of the present disclosure is further described in detail below through the accompanying drawings and embodiments.

[0030] The present disclosure proposes a QoS implementation method, a relay transmission system and a storage medium to solve the problem of QoS implementation when there are multi-hop relay terminals between terminals.

[0031] The flowcharts of some embodiments of the QoS implementation method disclosed in the present invention are as follows: Figure 1 As shown, it is executed by each relay terminal on the relay path, where the number of relay terminals on the relay path is greater than one.

[0032] In step 101, the current relay terminal uses information from the previous node on the relay path as the first service quality information. In some embodiments, when the previous node is a source terminal, the current terminal and the next node are relay terminals. In some embodiments, when the previous node and the current terminal are relay terminals, the next node is a relay terminal or a target terminal.

[0033] In some embodiments, the information sent from the source terminal may include delay information between the source terminal and the target terminal, and the delay information is used as the service quality requirement between the source terminal and the target terminal, thereby avoiding excessive delay caused by relay service and affecting user experience.

[0034] In some embodiments, the service quality information as the first service quality information is transmitted through at least one of the link establishment process or the link modification process, so that the service quality information is transmitted based on the signaling process in the related technology, which is conducive to compatibility with related technologies and promotion and application.

[0035] In some embodiments, the information from the previous node also includes a layer 2 identifier of the source terminal and a layer 2 identifier of the target terminal, so as to determine the relay path corresponding to the quality of service information and improve the accuracy of QoS implementation.

[0036] In step 102, second quality of service information and third quality of service information are generated according to the first quality of service information.

[0037] In some embodiments, the first quality of service information carries the quality of service parameters between the previous node and the target terminal of the relay path, such as the delay parameter. The current terminal obtains the first quality of service parameter between the previous node and the target terminal of the relay path according to the first quality of service information, and then divides the first quality of service parameter into a second quality of service parameter and a third quality of service parameter, wherein the second quality of service parameter is the quality of service parameter between the current node and the previous node, and the third quality of service parameter is the quality of service parameter between the current node and the target terminal of the relay path. The current terminal generates the second quality of service information according to the second quality of service parameter, and generates the third quality of service information according to the third quality of service parameter, thereby realizing the transmission of the quality of service parameter.

[0038] Through this method, the relay terminal divides the received service quality parameters into two parts, namely the service quality parameters from the previous hop to the current terminal, and the service quality parameters from the current terminal to the target terminal, so that the next relay node can perform similar operations, thereby realizing the service quality parameter allocation between every two adjacent nodes on the entire path.

[0039] In some embodiments, the first quality of service information also includes an expected quality of service parameter between the previous node and the current terminal, that is, the expected quality of service between the previous node and the current terminal. In some embodiments, when the relay terminal divides the quality of service parameter, it determines the second quality of service parameter according to the expected quality of service parameter between the previous node and the current terminal, and then determines the third quality of service parameter according to the first quality of service parameter and the second quality of service parameter. In some embodiments, the relay terminal can use the first quality of service parameter as a reference, and make the second quality of service parameter the same as or close to the expected quality of service value when dividing the parameter, so as to meet the quality of service expectation as much as possible on the basis of meeting the end-to-end QoS requirements.

[0040] In step 103, the second quality of service information is sent to the previous node, and the third quality of service information is sent to the next node on the relay path. When the next node is a relay node, the next node uses the third quality of service information as the first quality of service information and repeats the operation starting from step 101.

[0041] In some embodiments, the relay node sends the second service quality information to the previous node through at least one of the link establishment or modification processes; and sends the third service quality information to the next node through at least one of the link establishment or link modification processes, which is conducive to compatibility with related technologies and promotion and application.

[0042] Based on the method in the embodiment shown above, when the relay path between the source terminal and the target terminal includes multiple relay terminals, each relay terminal uses itself as the only relay terminal, uses the previous node as the source node, uses the next node as the target node, divides the remaining QoS parameters into two sections, and then uses itself as the source terminal to repeat the QoS implementation process executed by a single relay terminal, thereby realizing continuous QoS parameter segmentation between relay terminals, thereby making full use of the terminal resources (including processing power and spectrum) and completing QoS implementation in multi-hop relay communication.

[0043] In some embodiments, if the next node of the current relay terminal is a relay terminal, the relay terminal can send the second and third service quality information to the previous node and the next node synchronously or asynchronously after generating the second and third service quality information. In some embodiments, if the next node of the current relay terminal is a target terminal, the relay terminal can first send the third service quality information to the next node as the target terminal after generating the second and third service quality information, and then receive the fourth service quality parameter between the target terminal and the current terminal fed back by the target terminal. After receiving the fourth service quality parameter, the operation of sending the second service quality information to the previous node is performed.

[0044] Such a QoS implementation method can match the QoS implementation process in the relay path with only one hop relay in the related technology, thereby being further compatible with the related technology, facilitating the rapid deployment of applications without affecting the existing network, and saving network deployment costs.

[0045] The signaling interaction diagrams of some embodiments of the QoS implementation method of the present disclosure are as follows: Figure 2 shown.

[0046] In 200, the proximity service discovery between terminals is completed under the source terminal-relay (multi-hop)-target terminal architecture, and the source terminal (source UE) and the target terminal (target UE) obtain end-to-end QoS parameters, such as PQI (QoS identifier), GFBR (Guaranteed Flow Bit Rate), MFBR (Maximum Flow Bit Rate), etc.

[0047] In 201, the source terminal sends the acquired QoS information to the first relay terminal Relay1 on the relay path through a link establishment process or a link modification process. The parameters include the QoS parameters of S (source terminal) -T (target terminal), the layer 2 identifier L2ID of the source and target terminals. In some embodiments, the QoS information also includes the expected QoS parameters between the source terminal and relay 1.

[0048] In 202, Relay1 performs segmentation based on the QoS parameters obtained in step 201, and segments the QoS parameters from the source terminal to Relay1. <s-r1>+QoS parameters from Relay1 to the target terminal <r1-t>.

[0049] In 203, Relay1 returns QoS information to the source UE through the link establishment process or link modification process. The QoS information includes <s-r1>.

[0050] In 204, Relay1 uses the link establishment process or link modification process to connect the <r1-t>The QoS information is sent to the first relay terminal Relay2 on the relay path. In addition, the QoS information sent to Relay2 may also include some other parameters, such as: L2 IDs of the source and destination terminals. In some embodiments, the QoS information also includes the expected QoS parameters between Relay1 and Relay2.

[0051] In 205, in some embodiments, the QoS information also includes segmentation based on the QoS parameters obtained from the above step 204, and the QoS parameters between Relay1 and Relay2 are segmented. <r1-r2>+QoS parameters between Relay2 and target node T <r2-t>.

[0052] In 206, Relay2 returns QoS information to Relay1 through the link establishment process or link modification process. The QoS information includes <r1-r2>.

[0053] Next, in steps 207-210, other relay terminals except the nth relay terminal on the relay path (there are n relay terminals on the relay path, and n is a positive integer greater than 2) repeat the operations in steps 201-206.

[0054] When the service quality information reaches Relay n-1, Relay n-1 divides the QoS parameters and feeds back to Relay n-2.<R(n-2)-R(n-1)> , and then execute steps 211-215.

[0055] In 211, Relay n-1 sends QoS information to relay terminal Relay n through a link establishment process or a link modification process, and the information includes QoS parameters from Relay n-1 to the target terminal and L2 IDs of the source and target terminals. In some embodiments, the QoS information also includes the desired QoS parameters between relay terminal n-1 and relay terminal n.

[0056] In step 212, Relay n performs segmentation based on the QoS information obtained from step 211, and segments the QoS parameters from Relay n-1 to Relay n.<R(n-1)-R(n)> +QoS parameters from Relay n to target terminal T<R(n)-T> .

[0057] In 213, Relay n uses the link establishment process or link modification process to connect the relay in step 212 to the relay.<R(n)-T> In some embodiments, the QoS information sent also includes some other parameters, such as the L2 IDs of the source and destination terminals. In some embodiments, the QoS information also includes the expected QoS parameters between the Relay n and the destination terminal.

[0058] In 214, the target terminal returns QoS information through a link establishment process or a link modification process, and the QoS information includes QoS parameters between Relay n and the target terminal.

[0059] In 215, Relay n returns QoS parameters to Relay n-1 through the link establishment process or link modification process. The parameters include<R(n-1)-R(n)> .

[0060] Through the method in the embodiment shown above, for the scenario where terminal to terminal communicates through a multi-hop relay, QoS is implemented between every two hops, thereby ensuring end-to-end QoS requirements; in particular, for the last two hops from the source terminal to the target terminal, it matches the process of a single relay in the relevant technology, thereby further being compatible with the relevant technology, which is conducive to the rapid deployment of applications without affecting the existing network and saving network deployment costs.

[0061] Schematic diagrams of some embodiments of the relay transmission system disclosed in the present invention are as follows Figure 3 shown.

[0062] The relay transmission system includes a plurality of relay terminals 321-32n, where n is an integer greater than 1. In some embodiments, the relay terminals are located on the same relay path and are connected in series. Each relay terminal can use the information from the previous node on the relay path as the first quality of service information, and then generate the second quality of service information and the third quality of service information according to the first quality of service information, send the second quality of service information to the previous node, and send the third quality of service information to the next node on the relay path. In some embodiments, the relay transmission system can execute any one of the QoS implementation methods described above.

[0063] In such a relay transmission system, each relay terminal regards itself as the only relay terminal, the previous node as the source node, the next node as the target node, divides the remaining QoS parameters into two sections, and then regards itself as the source terminal to repeat the QoS implementation process executed by the relay terminal, thereby realizing continuous QoS parameter segmentation between relay terminals, thereby making full use of the terminal's resources (including processing power and spectrum) and completing QoS implementation in multi-hop relay communications.

[0064] In some embodiments, the relay terminal can obtain the first service quality parameter between the previous node and the target terminal of the relay path according to the first service quality information, and divide the first service quality parameter into a second service quality parameter and a third service quality parameter, wherein the second service quality parameter is the service quality parameter between the current node and the previous node, and the third service quality parameter is the service quality parameter between the current node and the target terminal of the relay path. The current terminal generates the second service quality information according to the second service quality parameter, and generates the third service quality information according to the third service quality parameter, thereby realizing the transmission of the service quality parameter.

[0065] In such a relay transmission system, the relay terminal divides the received service quality parameters into two parts, namely the service quality parameters from the previous hop to the current terminal, and the service quality parameters from the current terminal to the target terminal, so that the next relay node can perform similar operations, thereby realizing the service quality parameter allocation between every two adjacent nodes on the entire path.

[0066] In some embodiments, the first quality of service information also includes a layer 2 identifier of a source terminal and a layer 2 identifier of a target terminal. Such a relay transmission system can facilitate determination of a relay path corresponding to the QoS information and improve the accuracy of QoS implementation.

[0067] In some embodiments, the first quality of service information also includes a quality of service expectation parameter between the previous node and the current terminal. The relay terminal can determine the second quality of service parameter based on the quality of service expectation parameter between the previous node and the relay terminal, and then determine the third quality of service parameter based on the first quality of service parameter and the second quality of service parameter, so as to meet the quality of service expectations as much as possible on the basis of meeting the end-to-end QoS requirements.

[0068] In some embodiments, the terminals of the relay transmission system transmit quality of service information based on at least one of the link establishment or link modification processes, which is conducive to utilizing the signaling and processes in related technologies, facilitating the rapid deployment of applications, and avoiding increasing the signaling burden.

[0069] In some embodiments, the relay transmission system also includes a source terminal 310, which can generate end-to-end service quality information and send it to the relay terminal serving as the next node. The end-to-end service quality information includes source-end service quality parameters between the source terminal and the target terminal. The source-end service quality parameters are determined based on the end-to-end service quality requirements, thereby facilitating determination of the service quality parameters between each two nodes based on the source-end service quality parameters, thereby ensuring end-to-end service quality assurance.

[0070] In some embodiments, the relay transmission system further includes a target terminal 330, which can feed back a fourth service quality parameter between the target terminal and the current terminal to the relay terminal as the previous node on the relay path after receiving the third service quality information. After receiving the fourth service quality parameter, the relay node 32n (n is the number of relay nodes on the relay path, n is greater than or equal to 2) adjacent to the target terminal 330 performs an operation of sending the second service quality information to the previous node, thereby further being compatible with related technologies, facilitating rapid deployment of applications without affecting the existing network, and saving network deployment costs.

[0071] A schematic diagram of a structure of an embodiment of the relay transmission system disclosed in the present invention is shown in FIG. Figure 4 As shown. Each network element in the relay transmission system includes a memory 401 and a processor 402. Among them: the memory 401 can be a disk, a flash memory or any other non-volatile storage medium. The memory is used to store the instructions in the corresponding embodiment of the QoS implementation method above. The processor 402 is coupled to the memory 401 and can be implemented as one or more integrated circuits, such as a microprocessor or a microcontroller. The processor 402 is used to execute the instructions stored in the memory, and can complete the QoS implementation in the multi-hop relay communication.

[0072] In one embodiment, it is also possible to Figure 5 As shown, each network element 500 in the relay transmission system includes a memory 501 and a processor 502. The processor 502 is coupled to the memory 501 via a BUS 503. Each network element 500 in the relay transmission system can also be connected to an external storage device 505 via a storage interface 504 to call external data, and can also be connected to a network or another computer system (not shown) via a network interface 506. No detailed description will be given here.

[0073] In this embodiment, the memory stores data instructions, and the processor processes the instructions, so that QoS implementation in multi-hop relay communication can be completed.

[0074] In another embodiment, a computer-readable storage medium stores computer program instructions, which, when executed by a processor, implement the steps of the method in the corresponding embodiment of the QoS implementation method. It should be understood by those skilled in the art that the embodiments of the present disclosure may be provided as methods, devices, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present disclosure may take the form of a computer program product implemented on one or more computer-usable non-transient storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0075] The present disclosure is described with reference to flowcharts and / or block diagrams of methods, devices (systems) and computer program products according to embodiments of the present disclosure. It should be understood that each process and / or block in the flowchart and / or block diagram and the combination of processes and / or blocks in the flowchart and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0076] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0077] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0078] So far, the present disclosure has been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0079] The method and apparatus of the present disclosure may be implemented in many ways. For example, the method and apparatus of the present disclosure may be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware. The above order of steps for the method is for illustration only, and the steps of the method of the present disclosure are not limited to the order specifically described above, unless otherwise specifically stated. In addition, in some embodiments, the present disclosure may also be implemented as a program recorded in a recording medium, which includes machine-readable instructions for implementing the method according to the present disclosure. Therefore, the present disclosure also covers a recording medium storing a program for executing the method according to the present disclosure.

[0080] It should be noted that the terms "first", "second", etc. in the specification, claims, and drawings of the present disclosure are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present disclosure described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products, or devices.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present disclosure rather than to limit it. Although the present disclosure has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present disclosure can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present disclosure, which should be included in the scope of the technical solution for protection of the present disclosure.

Claims

1. A method for implementing quality of service, executed by each relay terminal on a relay path, comprising: Using information from a previous node on the relay path as first quality of service information; generating second quality of service information and third quality of service information according to the first quality of service information; and sending the second quality of service information to the previous node, and sending the third quality of service information to the next node on the relay path, The number of relay terminals on the relay path is greater than one.

2. The method according to claim 1, wherein: Generating the second quality of service information and the third quality of service information according to the first quality of service information includes: Acquire a first quality of service parameter between the previous node and the target terminal of the relay path according to the first quality of service information; splitting the first quality of service parameter into a second quality of service parameter and a third quality of service parameter; and Second quality of service information is generated according to the second quality of service parameter, and third quality of service information is generated according to the third quality of service parameter.

3. The method according to claim 2, wherein: The second quality of service parameter is a quality of service parameter between the current node and the previous node; and The third quality of service parameter is a quality of service parameter between the current node and a target terminal of the relay path.

4. The method according to claim 2, wherein: The first service quality information also includes a layer 2 identifier of a source terminal and a layer 2 identifier of a target terminal.

5. The method according to any one of claims 2 to 4, wherein: The first service quality information also includes a service quality expectation parameter between the previous node and the current terminal; The dividing the service quality parameter into a second service quality parameter and a third service quality parameter includes: the current terminal determines the second service quality parameter according to the service quality expectation parameter between the previous node and the current terminal, and determines the third service quality parameter according to the first service quality parameter and the second service quality parameter.

6. The method according to claim 1, wherein: The information from the previous node on the relay path includes: information obtained through at least one of a link establishment process or a link modification process; The sending the second quality of service information to the previous node comprises: sending the second quality of service information to the previous node through at least one of a link establishment process or a link modification process; and The sending the third quality of service information to the next node on the relay path includes: sending the third quality of service information to the next node through at least one of a link establishment process and a link modification process.

7. The method according to claim 1, wherein: In the case where the previous node is a source terminal, the current terminal and the next node are relay terminals; and In the case that the previous node and the current terminal are relay terminals, the next node is a relay terminal or a target terminal.

8. The method according to claim 1, wherein: The sending the third quality of service information to the next node on the relay path comprises: sending the third quality of service information to the next node as the target terminal; The method further includes: receiving a fourth quality of service parameter between the target terminal and the current terminal fed back by the target terminal, wherein after receiving the fourth quality of service parameter, performing the operation of sending the second quality of service information to the previous node.

9. A relay transmission system, comprising a plurality of relay terminals connected in series on a relay path between a source terminal and a target terminal, wherein: Each of the relay terminals is configured as: Using information from a previous node on the relay path as first quality of service information; generating second quality of service information and third quality of service information according to the first quality of service information; and The second quality of service information is sent to the previous node, and the third quality of service information is sent to the next node on the relay path.

10. The system according to claim 9, wherein: The relay terminal is configured as follows: Acquire a first quality of service parameter between the previous node and the target terminal of the relay path according to the first quality of service information; dividing the first quality of service parameter into a second quality of service parameter and a third quality of service parameter; and Second quality of service information is generated according to the second quality of service parameter, and third quality of service information is generated according to the third quality of service parameter.

11. The system according to claim 10, wherein: The second quality of service parameter is a quality of service parameter between the current node and the previous node; and The third quality of service parameter is a quality of service parameter between the current node and a target terminal of the relay path.

12. The system according to claim 10, wherein: The first service quality information from the previous node also includes a layer 2 identifier of a source terminal and a layer 2 identifier of a target terminal.

13. The system according to any one of claims 10 to 12, wherein: The first service quality information from the previous node also includes a service quality expectation parameter between the previous node and the current terminal; The relay terminal is configured as follows: Determine the second quality of service parameter according to the expected quality of service parameter between the previous node and the relay terminal; and The third quality of service parameter is determined according to the first quality of service parameter and the second quality of service parameter.

14. The system according to any one of claims 10 to 12, wherein: The relay terminal is configured as follows: The first quality of service information sent by a previous node obtained through at least one of a link establishment or modification process; Sending the second quality of service information to the previous node through at least one of a link establishment or modification process; and The third quality of service information is sent to the next node through at least one of a link establishment or modification process.

15. The system according to any one of claims 9 to 12, further comprising: The source terminal is configured to generate end-to-end service quality information and send it to a relay terminal as a next node, wherein the end-to-end service quality information includes a service quality parameter between the source terminal and the target terminal.

16. The system according to any one of claims 9 to 12, further comprising: The target terminal is configured to feed back a fourth quality of service parameter between the target terminal and the current terminal to the relay terminal that is a previous node on the relay path after receiving the third quality of service information; The relay node is configured to execute the operation of sending the second quality of service information to the previous node after receiving the fourth quality of service parameter.

17. A relay transmission system, comprising: Memory; as well as A processor coupled to the memory, the processor being configured to execute the method according to any one of claims 1 to 8 based on instructions stored in the memory.

18. A computer-readable storage medium having computer program instructions stored thereon, which, when executed by a processor, implement the steps of the method according to any one of claims 1 to 8.

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