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Patent Searching and Data


Title:
DATA TRANSMISSION METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/000799
Kind Code:
A1
Abstract:
The present application provides a data transmission method and apparatus. The method comprises: a terminal device sends a status report to a network device, the status report comprising first indication information, and the first indication information being used for indicating that a link exception occurs to a first cell; and the terminal device receives first data from the network device on a second cell, the first data being data that has failed to be transmitted on the first cell. The first cell is a cell in a primary cell group and the second cell is a cell in a secondary cell group, or the first cell is a cell in a secondary cell group and the second cell is a cell in a primary cell group. On the basis of the solution, when an exception occurs to a cell in a secondary cell group, data that has failed to be transmitted on the cell in the secondary cell group is retransmitted by means of a cell in a primary cell group, or when an exception occurs to a cell in a primary cell group, data that has failed to be transmitted on the cell in the primary cell is retransmitted by means of a cell in a secondary cell group, so that the data transmission efficiency can be improved.

Inventors:
XIAO JIEHUA (CN)
LI XINXIAN (CN)
TANG HAO (CN)
WANG YI (CN)
Application Number:
CN2020/098615
Publication Date:
January 07, 2021
Filing Date:
June 28, 2020
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04W24/10
Foreign References:
CN108667571A2018-10-16
CN107197520A2017-09-22
CN108075870A2018-05-25
CN106549736A2017-03-29
US20180167190A12018-06-14
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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