US 12,238,773 B2
Frame transmission method and apparatus, communication end, and storage medium
Yajun Zhu, Beijing (CN); Wei Hong, Beijing (CN); Junli Li, Beijing (CN); and Yong Li, Beijing (CN)
Assigned to Beijing Xiaomi Mobile Software Co., Ltd., Beijing (CN); and Beijing University of Posts and Telecommunications, Beijing (CN)
Appl. No. 17/779,544
Filed by BEIJING XIAOMI MOBILE SOFTWARE CO., LTD., Beijing (CN); and BEIJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS, Beijing (CN)
PCT Filed Nov. 29, 2019, PCT No. PCT/CN2019/122105
§ 371(c)(1), (2) Date May 24, 2022,
PCT Pub. No. WO2021/102960, PCT Pub. Date Jun. 3, 2021.
Prior Publication US 2023/0007689 A1, Jan. 5, 2023
Int. Cl. H04W 74/0816 (2024.01); H04W 74/00 (2009.01)
CPC H04W 74/0816 (2013.01) [H04W 74/002 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A frame transmission method, comprising:
sending, by a first communication end to a second communication end, a first request to send (RTS) on an unlicensed channel, wherein the first RTS carries a licensed frequency band source indication;
receiving, by the first communication end according to the licensed frequency band source indication, an assist-clear to send (A-CTS) that is sent by the second communication end in a retreat state on a licensed channel; and
sending, by the first communication end according to the A-CTS, a first clear-request to send (C-RTS) on the unlicensed channel, wherein the first C-RTS is configured for instructing a third communication end to exit the retreat state entered based on the first RTS.