US 12,256,409 B2
Data transmission using uplink carrier switching method
Zhe Fu, Guangdong (CN)
Assigned to GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Guangdong (CN)
Filed by GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Guangdong (CN)
Filed on Jun. 7, 2022, as Appl. No. 17/834,472.
Application 17/834,472 is a continuation of application No. PCT/CN2019/124371, filed on Dec. 10, 2019.
Prior Publication US 2022/0304043 A1, Sep. 22, 2022
Int. Cl. H04W 4/00 (2018.01); H04W 72/1268 (2023.01); H04W 72/23 (2023.01)
CPC H04W 72/23 (2023.01) [H04W 72/1268 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A data transmission method, comprising:
determining, by a terminal device, a first uplink carrier used by uplink data to be transmitted according to first information; wherein the first uplink carrier is a carrier of a normal uplink (NUL) or a carrier of a supplementary uplink (SUL); wherein the first information is used to indicate time limit information used when selecting an uplink carrier, and the time limit information comprises a switching delay required for the terminal device to switch from a second uplink carrier currently used to another uplink carrier of the SUL or the NUL; and
sending, by the terminal device, the uplink data by using the first uplink carrier;
wherein before the determining the first uplink carrier used by the uplink data to be transmitted the method further comprises:
receiving, by the terminal device, first indication information, wherein the first indication information comprises a start time of a resource of a second to-be-switched carrier; and
wherein the determining, by the terminal device, the first uplink carrier used by the uplink data to be transmitted according to the first information comprises;
determining, by the terminal device, whether to take the second to-be-switched carrier as the first uplink carrier according to the start time of the resource of the second to-be-switched carrier comprised in the first indication information and the switching delay comprised in the first information.