公开(公告)号：US20170034707A1

公开(公告)日：2017-02-02

申请号：US14810301

申请日：2015-07-27

Applicant: QUALCOMM Incorporated

Inventor： Michael Richard Green ,  Meriam Rezk ,  Youhan Kim ,  Mahboobul Alem

IPC: H04W16/10 ,  H04W16/14 ,  G01S7/02

CPC classification number: H04W16/10 ,  G01S7/021 ,  H04W16/14

Abstract: Methods, systems, and apparatuses are described for wireless communications. More particularly, an access point may assign a channel weighting factor to each channel in a candidate channel list. The access point may identify an attribute of a radar signal detected on a current operating channel. The access point may adjust, based at least in part on the identified attribute, the channel weighting factor assigned to a channel of the candidate channel list adjacent to the current operating channel. The access point may select a new operating channel from the candidate channel list based at least in part on the assigned channel weighting factor.

Abstract translation: 为无线通信描述了方法，系统和装置。 更具体地，接入点可以向候选信道列表中的每个信道分配信道加权因子。 接入点可以识别在当前操作信道上检测到的雷达信号的属性。 接入点可以至少部分地基于所识别的属性来调整分配给与当前操作信道相邻的候选信道列表的信道的信道加权因子。 接入点可以至少部分地基于分配的信道加权因子从候选信道列表中选择新的操作信道。

公开(公告)号：US11632273B1

公开(公告)日：2023-04-18

申请号：US17457402

申请日：2021-12-02

Applicant: QUALCOMM Incorporated

Inventor： Meriam Rezk ,  Deniz Rende ,  Kapil Rai ,  Chin-Hung Chen

IPC: H04L1/02 ,  H04L25/02 ,  H04B7/0452 ,  H04B7/0426 ,  H04L1/00

Abstract: This disclosure provides methods, devices and systems for determining unavailable spatial streams in uplink multiuser (MU) multiple-in multiple-out (MIMO) communication. In one example, a device transmits, to wireless stations including a first wireless station, a trigger frame configured to elicit a joint transmission, to the device, of a MU packet over spatial streams respectively associated with the wireless stations. The device receives the MU packet over the spatial streams, where each spatial stream of the spatial streams is received by receive chains of the device. The device performs a channel estimation associated with each spatial stream of the spatial streams using each receive chain of the receive chains. The device determines that at least one spatial stream associated with the first wireless station is unavailable based on the channel estimation. The device processes the MU packet from the plurality of spatial streams without the at least one spatial stream.