Data distribution method, apparatus, and system

Patent metadata

Field	Value
Publication number	US-11115871-B2
Application number	US-201916684047-A
Country	US
Kind code	B2
Filing date	Nov 14, 2019
Priority date	May 22, 2017
Publication date	Sep 7, 2021
Grant date	Sep 7, 2021

Abstract

The present disclosure relates to data distribution methods. One example method includes receiving an access policy, where the access policy includes flow description information, quality information of at least two links, and a data distribution policy on the at least two links, receiving a service data flow, and in response to determining that the access policy includes flow description information of the service data flow, determining link quality information of a link used for transmitting the service data flow, and distributing the service data on the link according to the data distribution policy, where the data distribution policy is a data distribution policy that is determined based on the access policy and that is corresponding to the link quality information and the flow description information of the service data flow.

First claim

What is claimed is:

1. A data distribution method, comprising:
receiving, by a communications device, an access policy from a session management function entity, wherein the access policy comprises flow description information, quality information of at least two links, and a data distribution policy on the at least two links;
receiving, by the communications device, a service data flow; and
in response to determining that the access policy comprises flow description information of the service data flow;
determining, by the communications device, link quality information of a link used for transmitting the service data flow; and
distributing, by the communications device, the service data flow on the link according to the data distribution policy, wherein the data distribution policy is a data distribution policy that is determined based on the access policy and that is corresponding to the link quality information and the flow description information of the service data flow.

2. The method according to claim 1 , wherein the data distribution policy comprises a data flow distribution ratio on the at least two links; and
wherein distributing, by the communications device, the service data flow on the link according to the data distribution policy comprises sending, by the communications device and based on the data flow distribution ratio on the at least two links, service data on the link.

3. The method according to claim 2 , wherein the data distribution policy further comprises a waiting latency for a receiving party to perform data reordering.

4. The method according to claim 2 , wherein the data distribution policy further comprises a data sending sequence.

5. The method according to claim 2 , wherein the service data further comprises a data packet sequence number, and wherein the data packet sequence number is used by a receiving party to reorder received service data.

6. The method according to claim 1 , wherein the method further comprises receiving, by the communications device, an updated access policy from the session management function entity.

7. The method according to claim 1 , wherein before the distributing, by the communications device, the service data flow on the link according to the data distribution policy, the method further comprises:
determining, by the communications device and based on the access policy, a data distribution policy corresponding to the link quality information and the flow description information of the service data flow.

8. A communications device, comprising:
at least one processor; and
a non-transitory computer-readable storage medium coupled to the at least one processor and storing programming instructions for execution by the at least one processor, the programming instructions instruct the at least one processor to:
receive an access policy from a session management function entity, wherein the access policy comprises flow description information, quality information of at least two links, and a data distribution policy on the at least two links;
receive a service data flow; and
in response to determining that the access policy comprises flow description information of the service data flow:
determine link quality information of a link used for transmitting the service data flow; and
distribute the service data flow on the link according to the data distribution policy, wherein the data distribution policy is a data distribution policy that is determined based on the access policy and that is corresponding to the link quality information and the flow description information of the service data flow.

9. The communications device according to claim 8 , wherein the programming instructions instruct the at least one processor to:
send, based on a data flow distribution ratio on the at least two links, service data on the link.

10. The communications device according to claim 9 , wherein the data distribution policy further comprises a waiting latency for a receiving party to perform data reordering.

11. The communications device according to claim 8 , wherein the programming instructions instruct the at least one processor to:
receive an updated access policy from the session management function entity.

12. The communications device according to claim 8 , wherein the programming instructions instruct the at least one processor to:
determine, based on the access policy, a data distribution policy corresponding to the link quality information and the flow description information of the service data flow.

13. The communications device according to claim 8 , wherein the communications device is a user plane function entity or user equipment.

14. A data distribution system, comprising:
a communications device; and
a session management function entity, wherein the session management function entity is configured to send an access policy to the communication device; and
wherein the communications device is configured to:
receive the access policy, wherein the access policy comprises flow description information, quality information of at least two links, and a data distribution policy on the at least two links;
receive a service data flow; and
in response to determining that the access policy comprises flow description information of the service data flow:
determine link quality information of a link used for transmitting the service data flow; and
distribute the service data flow on the link according to the data distribution policy, wherein the data distribution policy is a data distribution policy that is determined based on the access policy and that is corresponding to the link quality information and the flow description information of the service data flow.

15. The data distribution system according to claim 14 , wherein the data distribution policy comprises a data flow distribution ratio on the at least two links, and wherein the communications device is configured to:
send, based on the data flow distribution ratio on the at least two links, service data on the link.

16. The data distribution system according to claim 15 , wherein the data distribution policy further comprises a waiting latency for a receiving party to perform data reordering.

17. The data distribution system according to claim 15 , wherein the data distribution policy further comprises a data sending sequence.

18. The data distribution system according to claim 15 , wherein the service data further comprises a data packet sequence number, and wherein the data packet sequence number is used by a receiving party to reorder received service data.

19. The data distribution system according to claim 14 , wherein the communications device is configured to:
receive an updated access policy from the session management function entity.

20. The data distribution system according to claim 14 , wherein the communications device is configured to:
determine, based on the access policy, a data distribution policy corresponding to the link quality information and the flow description information of the service data flow.

Assignees

• Huawei Tech Co Ltd

Inventors

• Xu Qing
• Yu Youyang
• Zhou Han

Classifications

• H04W48/16

  Discovering, processing access restriction or access information · CPC title

• H04L67/14

  Session management (for real-time applications in data packet communications networks H04L65/1066) · CPC title

• H04W80/10

  adapted for {application} session management, e.g. SIP [Session Initiation Protocol] {(connection management H04W76/00; arrangements for session management H04L67/14)} · CPC title

• H04W76/15

  Setup of multiple wireless link connections · CPC title

• H04L47/34

  ensuring sequence integrity, e.g. using sequence numbers · CPC title