US 12,255,672 B2
Data transmission method, apparatus, device, and storage medium
Xiandong Dong, Beijing (CN)
Assigned to BEIJING XIAOMI MOBILE SOFTWARE CO., LTD., Beijing (CN)
Appl. No. 17/612,908
Filed by BEIJING XIAOMI MOBILE SOFTWARE CO., LTD., Beijing (CN)
PCT Filed May 23, 2019, PCT No. PCT/CN2019/088138
§ 371(c)(1), (2) Date Nov. 19, 2021,
PCT Pub. No. WO2020/232700, PCT Pub. Date Nov. 26, 2020.
Prior Publication US 2022/0278699 A1, Sep. 1, 2022
Int. Cl. H04B 1/00 (2006.01); H04L 5/00 (2006.01)
CPC H04B 1/005 (2013.01) [H04L 5/0055 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A data transmission method, comprising:
establishing, by a first device, a data transmission connection on a first frequency band with a second device;
generating, by the first device, a first message frame, wherein first capability information is carried by the first message frame, and the first capability information is used to indicate that simultaneous data transmission on at least two frequency bands is supported by the first device; and the at least two frequency bands comprise the first frequency band and a second frequency band different from the first frequency band;
sending, by the first device on the first frequency band on which the first device and the second device establish the data transmission connection, the first message frame to the second device;
receiving, by the first device, a second message frame sent by the second device on the first frequency band, wherein second capability information is carried by the second message frame, and the second capability information is used to indicate that the simultaneous data transmission on the at least two frequency bands is supported by the second device; and
sending, by the first device, data on the at least two frequency bands according to the first capability information and the second capability information; wherein
the first capability information and the second capability information comprise following information items:
frequency band identifications of the at least two frequency bands;
an operating bandwidth;
a modulation and coding scheme (MCS); and
key reuse information.