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1. (WO2018145348) METHOD AND APPARATUS FOR DETERMINING BUSY OR IDLE CHANNEL STATE

Pub. No.:    WO/2018/145348    International Application No.:    PCT/CN2017/076831
Publication Date: Fri Aug 17 01:59:59 CEST 2018 International Filing Date: Thu Mar 16 00:59:59 CET 2017
IPC: H04W 74/08
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: DU, Zhenguo
杜振国
Title: METHOD AND APPARATUS FOR DETERMINING BUSY OR IDLE CHANNEL STATE
Abstract:
A method and an apparatus for determining a busy or idle channel state, used for reducing the possibility of WUR PPDU transmission failure in prior art mechanisms for determining a busy or idle channel state. The method comprises: when determining that a first physical layer convergence procedure protocol data unit (PPDU) needs to be sent, a sending device performs a first CCA on a first channel to obtain a first CCA result and performs a second CCA on a second channel to obtain a second CCA result; and, when the first CCA result indicates that the first channel is in an idle state and the second CCA result indicates that the second channel is in an idle state, determining that the channel for sending the first PPDU is in an idle state. The busy or idle state of the channel used for sending the first PPDU is determined by means of determining the busy or idle state of the two channels, and therefore, compared to the prior art, the determination results are more accurate, increasing the likelihood of success when transmitting the first PPDU.