公开(公告)号：US20170308710A1

公开(公告)日：2017-10-26

申请号：US15643720

申请日：2017-07-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhenguo DU ,  Weishan LU ,  Yunsong YANG ,  Zhigang RONG

IPC: G06F21/60 ,  H04W28/16 ,  H04W92/10

CPC classification number: G06F21/606 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0094 ,  H04L25/03866 ,  H04L27/2602 ,  H04W28/16 ,  H04W72/042 ,  H04W84/12 ,  H04W88/08 ,  H04W92/10

Abstract: A data transmission protection method includes: receiving, by a station, resource allocation information sent by an access point; obtaining, according to a status of mutual overlap between an allocated transmission channel and multiple subchannels, at least one overlapping subchannel used by the station to send a transmission protection message; and sending the transmission protection message on a current overlapping subchannel according to a status of whether each overlapping subchannel in the at least one overlapping subchannel used by the station to send the transmission protection message is used only by the station to send the transmission protection message, where the transmission protection message is used to protect downlink data transmission from the access point to the station, the transmission protection message includes duration, and the duration is used to indicate an exclusive time of the station for the transmission channel allocated to the station.

公开(公告)号：US20180213424A1

公开(公告)日：2018-07-26

申请号：US15743197

申请日：2016-07-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhenguo DU ,  Zhigang RONG

IPC: H04W24/10 ,  H04L5/00

CPC classification number: H04W24/10 ,  H04L5/0048 ,  H04W24/00 ,  H04W74/0808 ,  H04W84/12

Abstract: The present disclosure provides a channel measurement method and a STA to ensure that a sub-channel on which channel measurement is performed is idle, thereby preventing, to some extent, transmission in an OBSS from being affected by UL channel measurement. The method includes: receiving, by a station STA, a measurement notification message sent by an access point AP, where the measurement notification message carries identifier information of a channel that needs to be measured; and sending, by the STA, a sounding reference signal by using M idle sub-channels, so that the AP measures the M idle sub-channels according to the received sounding reference signal, where the M idle sub-channels are M idle sub-channels determined by the STA from at least one sub-channel included in a channel indicated in the identifier information of the channel that needs to be measured, and M is an integer greater than or equal to 1.