CN-115643625-B - Multipath data transmission method, device and equipment

Abstract

The application discloses a multipath data transmission method, a device and equipment, belonging to the technical field of communication, wherein the multipath data transmission method comprises the steps that an access network equipment acquires a first multipath data transmission rule, and the first multipath data transmission rule is used for prescribing N transmission paths for transmitting data streams or QoS streams; the access network device sends data flow or QoS flow to the remote terminal on N transmission paths based on the first multi-path data sending rule, wherein the N transmission paths are transmission paths in M transmission paths established by the access network device and the remote terminal, M is an integer greater than 1, and N is a positive integer.

Inventors

• WANG WEN
• XIE ZHENHUA
• KE XIAOWAN

Assignees

• 维沃移动通信有限公司

Dates

Publication Date

20260512

Application Date

20210719

Claims (20)

1. 1. A multi-path data transmission method, comprising: The method comprises the steps that an access network device obtains a first multi-path data transmission rule, wherein the first multi-path data transmission rule is used for specifying N transmission paths for transmitting data streams or QoS streams; the access network equipment sends data streams or QoS streams to a far-end terminal on the N transmission paths based on the first multi-path data sending rule; The N transmission paths are transmission paths in M transmission paths established by the access network equipment and the remote terminal, M is an integer greater than 1, and N is a positive integer; After the step of the access network device obtaining the first multipath data transmission rule, the method further includes: the access network equipment sends a second multi-path data sending rule to the remote terminal; the second multi-path data transmission rule is used for defining a transmission path for transmitting an uplink data stream or an uplink QoS stream and a data radio bearer DRB of the transmission path.
2. 2. The method of claim 1, wherein the first multipath data transmission rule comprises at least one of: Mapping relation between data stream or QoS stream and N transmission path identifiers, each transmission path identifier is used for indicating a transmission path; A backup transmission path communication rule, wherein the backup transmission path communication rule comprises a backup transmission path identifier, and when transmission paths in the N transmission paths are interrupted or unavailable, the transmission paths indicated by the backup transmission path identifier are started to transmit data streams or QoS streams; a minimum time delay rule; Load balancing rules; Minimum packet loss rate rule, and Replication indication information of the data flow or QoS flow.
3. 3. The method of claim 2, wherein the minimum latency rule is used to instruct the access network device to perform at least one of: Performing time delay detection on the M transmission paths; and sending the data stream or the QoS stream through the transmission path with the minimum delay among the M transmission paths.
4. 4. The method of claim 2, wherein the load balancing rule comprises a load percentage for each of the M transmission paths, and wherein the access network device determines the transmission path for the data flow or QoS flow based on the load percentages.
5. 5. The method of claim 2, wherein the minimum packet loss rate rule is used to instruct the access network device to perform at least one of: Detecting packet loss rate of the M transmission paths; And sending the data stream or QoS stream through the transmission path with the minimum packet loss rate in the M transmission paths.
6. 6. The method of claim 1, wherein prior to the step of the access network device obtaining the first multipath data transmission rule, the method further comprises: The access network equipment sends multipath communication information to core network equipment, wherein the multipath communication information is used for indicating that multipath communication is established between the remote terminal and the access network equipment; The access network device obtains a first multipath data sending rule, which comprises the following steps: the access network device receives the first multi-path data transmission rule transmitted by the core network device.
7. 7. The method of claim 6, wherein the multipath communication information comprises at least one of: m transmission path identifiers, each of which is used for indicating one of the M transmission paths; The multipath communication includes a number M of transmission paths.
8. 8. The method of claim 1, wherein prior to the step of the access network device obtaining the first multipath data transmission rule, the method further comprises: The access network equipment receives multi-path communication requirement indication information, wherein the multi-path communication requirement indication information is used for indicating the access network equipment to generate a first multi-path data transmission rule; the access network device obtains the first multipath data sending rule, which includes: and the access network equipment generates the first multipath data transmission rule according to the first information.
9. 9. The method of claim 8, wherein the first information comprises at least one of: load information of each of the M transmission paths; local policy information; QoS parameters of QoS flows.
10. 10. The method of claim 1, wherein the access network device obtaining the first multipath data transmission rule comprises: the access network device receives the first multi-path data transmission rule transmitted by the remote terminal.
11. 11. The method of claim 1, wherein the second multipath data transmission rule comprises: mapping relation among uplink data stream, transmission path identification and DRB, or Mapping relation among uplink QoS flow, transmission path identification and DRB.
12. 12. The method of claim 1, wherein prior to the step of the access network device obtaining the first multipath data transmission rule, the method further comprises: the access network device generates M transmission path identifications, each transmission path identification being used to indicate one of the M transmission paths.
13. 13. A method according to claim 2,7, 11 or 12, characterized in that a transmission path identification comprises any of the following: A remote terminal identifier and a relay terminal identifier; a transmission path identifier allocated by the access network equipment; A transmission path identifier allocated by the remote terminal; And the transmission path identifier is distributed to the core network equipment.
14. 14. The method according to claim 12, wherein in case the access network device establishes a new transmission path with the remote terminal, before the step of the access network device generating M transmission path identifications, the method further comprises: The access network equipment adds path information corresponding to the new transmission path; Wherein the M transmission path identifications include a transmission path identification for indicating the new transmission path.
15. 15. The method of claim 1, wherein prior to the step of the access network device obtaining the first multipath data transmission rule, the method further comprises: and the access network equipment generates the association relation between the M transmission paths and the remote terminal.
16. 16. A multi-path data transmission method, comprising: The core network equipment transmits a first multipath data transmission rule to the access network equipment; the first multi-path data sending rule is used for defining N transmission paths of a data stream or a quality of service QoS stream, the N transmission paths are transmission paths in M transmission paths established by the access network equipment and a far-end terminal, M is an integer greater than 1, and N is a positive integer; before the step of the core network device sending the first multipath data sending rule to the access network device, the method further comprises: The core network equipment generates a multipath selection strategy according to the second information; the core network device sends the multi-path selection strategy to a remote terminal; The multipath selection strategy comprises the following steps: mapping relation between service type and transmission path identification.
17. 17. The method of claim 16, wherein the first multipath data transmission rule comprises at least one of: Mapping relation between data stream or QoS stream and N transmission path identifiers, each transmission path identifier is used for indicating a transmission path; A backup transmission path communication rule, wherein the backup transmission path communication rule comprises a backup transmission path identifier, and when transmission paths in the N transmission paths are interrupted or unavailable, the transmission paths indicated by the backup transmission path identifier are started to transmit data streams or QoS streams; a minimum time delay rule; Load balancing rules; Minimum packet loss rate rule, and Replication indication information of the data flow or QoS flow.
18. 18. The method of claim 17, wherein the minimum latency rule is used to instruct the access network device to at least one of: Performing time delay detection on the M transmission paths; and sending the data stream or the QoS stream through the transmission path with the minimum delay among the M transmission paths.
19. 19. The method of claim 17, wherein the load balancing rule comprises a load percentage for each of the M transmission paths, and wherein the access network device determines the transmission path for the data flow or QoS flow based on the load percentages.
20. 20. The method of claim 17, wherein the minimum packet loss rate rule is used to instruct the access network device to at least one of: Detecting packet loss rate of the M transmission paths; And sending the data stream or QoS stream through the transmission path with the minimum packet loss rate in the M transmission paths.

Description

Multipath data transmission method, device and equipment Technical Field The application belongs to the technical field of communication, and particularly relates to a multipath data sending method, device and equipment. Background In order to effectively extend network coverage, a relay communication scheme is introduced in a communication system. That is, a terminal (hereinafter, referred to as a far-end terminal) at the edge of network coverage or not under network coverage may access the network through a relay device (e.g., a relay terminal), thereby improving coverage of the network. Currently, in order to improve the reliability of data transmission (including transmission and reception) of a remote terminal in relay communication and the throughput of the remote terminal, rel-18 introduces multi-path communication in a relay scene, that is, the throughput and the data transmission reliability of the remote terminal can be improved by transmitting data on different transmission paths. Therefore, how to determine which data is transmitted on which transmission path is a problem to be solved. Disclosure of Invention The embodiment of the application provides a multi-path data transmission method, device and equipment, which can solve the problem of how to determine which data are transmitted on which transmission path in a multi-path communication scene. The first aspect provides a multi-path data sending method, which comprises the steps that an access network device obtains a first multi-path data sending rule, the first multi-path data sending rule is used for specifying N transmission paths for sending data streams or service quality (quality of service, qoS) streams, the access network device sends the data streams or the QoS streams to a remote terminal on the N transmission paths based on the first multi-path data sending rule, wherein the N transmission paths are transmission paths in M transmission paths established by the access network device and the remote terminal, M is an integer greater than 1, and N is a positive integer. The second aspect provides a multi-path data sending device, which is used for obtaining a first multi-path data sending rule, wherein the first multi-path data sending rule is used for prescribing N transmission paths for sending a data stream or a QoS stream, the sending module is used for sending the data stream or the QoS stream to a remote terminal on the N transmission paths based on the first multi-path data sending rule, the N transmission paths are transmission paths in M transmission paths established by an access network device and the remote terminal, M is an integer greater than 1, and N is a positive integer. In a third aspect, a multi-path data transmission method is provided, where the method includes that a core network device sends a first multi-path data transmission rule to an access network device, where the first multi-path data transmission rule is used to specify N transmission paths of a data stream or a QoS stream. In a fourth aspect, a multi-path data transmitting apparatus is provided, which includes a transmitting module configured to transmit a first multi-path data transmission rule to an access network device, where the first multi-path data transmission rule is used to specify N transmission paths of a data stream or a QoS stream. In a fifth aspect, a multi-path data transmission method is provided, where the method includes that a remote terminal receives a second multi-path data transmission rule sent by an access network device, and the remote terminal sends an uplink data stream or an uplink QoS stream to the access network device based on the second multi-path data transmission rule, where the second multi-path data transmission rule is used to specify a transmission path for sending the uplink data stream or the uplink QoS stream, and a data radio bearer (data radio bearer, DRB) of the transmission path. In a sixth aspect, a multipath data transmitting apparatus is provided, which includes a receiving module configured to receive a second multipath data transmission rule sent by an access network device, and a transmitting module configured to send an uplink data stream or an uplink QoS stream to the access network device based on the second multipath data transmission rule, where the second multipath data transmission rule is configured to specify a transmission path for sending the uplink data stream or the uplink QoS stream, and a DRB of the transmission path. In a seventh aspect, there is provided an access network device comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as in the first aspect. An eighth aspect provides an access network device, which includes a processor and a communication interface, where the processor is configured to obtain a first multipath d