公开(公告)号：US20230319691A1

公开(公告)日：2023-10-05

申请号：US18043006

申请日：2021-02-23

Applicant: QUALCOMM Incorporated

Inventor： Sandip HOMCHAUDHURI ,  Alireza RAISSINIA ,  Javier DEL PRADO PAVON ,  Shuibing DAI ,  Zhao LI ,  Vikram PHOGAT ,  Prasanna BASARALU SUBRAMANYA

IPC: H04W48/16 ,  H04W48/12

CPC classification number: H04W48/16 ,  H04W48/12

Abstract: This disclosure provides methods, devices, and systems for performing passive scanning operations on one or more wireless channels. In some implementations, a wireless communication device configures an off-channel scan time and a passive scanning period for passive scanning operations based on latency requirements of a low-latency application, and selects a home channel dwell time for the passive scanning operations. The wireless communication device may perform the passive scanning operation by alternating between listening for beacon frames on one or more second wireless channels for the configured off-channel scan time and dwelling on a home channel for the selected home channel dwell time during a first portion of the configured scanning period. The wireless communication device also may listen for beacon frames on the one or more second wireless channels during a second portion of the configured scanning period that is defined by the selected home channel dwell time.

公开(公告)号：US20190253967A1

公开(公告)日：2019-08-15

申请号：US15896799

申请日：2018-02-14

Applicant: QUALCOMM Incorporated

Inventor： Yongchun XIAO ,  Sandip HOMCHAUDHURI ,  Pradeep Kumar YENGANTI ,  Sanoop KOTTONTAVIDA ,  James Simon CHO ,  Srinivas KATAR ,  Shuibing DAI

IPC: H04W52/02 ,  H04W28/02

CPC classification number: H04W52/0216 ,  H04W28/0284 ,  H04W28/0289 ,  H04W52/0219 ,  H04W76/28

Abstract: Various aspects provide a wireless station (STA) to implement congestion sensitive target wake time (TWT) communications scheduling and enable the STA to determine whether to engage in communications between TWT service periods. A method described includes identifying a congestion metric, determining whether the congestion metric meets a congestion threshold, and transmitting a request to establish TWT communications in response to determining that the congestion metric meets the congestion threshold. Another method described includes terminating a scheduled service period of a TWT communications, receiving an indication that a threshold number of frames is available for transmission to an STA from an access point (AP) or an indication that one or more frames are present in a transmission queue at the STA, and transmitting, by the STA to the AP an indication that a communications link is to remain active between the terminated scheduled service period and a subsequent scheduled service period.