Patent ID: 11968125
Assignee: CHINA UNIONPAY CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A data transmission method, comprising:
determining, by a regional access device, a message that needs to be transmitted includes M pieces of QoS information, wherein the M pieces of QoS information are generated according to QoS values set by each regional access device for the message that needs to be transmitted, the M pieces of QoS information are located in an extension header of the message that needs to be transmitted, and M is an integer greater than 1; and
after the regional access device determines that a device identifier in a first piece of QoS information is consistent with a device identifier of the regional access device, updating a QoS value of the message that needs to be transmitted with a first QoS value in the first piece of QoS information, and forwarding the updated message that needs to be transmitted, wherein the first piece of QoS information is any one of the M pieces of QoS information.