公开(公告)号：US20150003434A1

公开(公告)日：2015-01-01

申请号：US13931320

申请日：2013-06-28

Applicant: QUALCOMM Incorporated

Inventor： Kai SHI ,  James Simon CHO ,  Ning ZHANG

IPC: H04W24/10

CPC classification number: H04W24/08 ,  H04L69/22 ,  H04W24/10 ,  H04W40/244 ,  H04W48/16 ,  H04W84/12

Abstract: Systems and methods are provided for preferentially locating a candidate channel likely to have an active network during a WLAN scanning process of an increased bandwidth. The candidate channel may be detected using spectral analysis of a received signal that may involve any combination FFT captures and correlation operations associated with detecting packets. Upon identification of a candidate channel, a wireless communications device may switch to that channel to receive and process one or more packets to determine the existence of a BSS available for association.

Abstract translation: 提供了系统和方法，用于在增加的带宽的WLAN扫描过程期间优先地定位可能具有活动网络的候选信道。 可以使用可能涉及与检测分组相关联的任何组合FFT捕获和相关操作的接收信号的频谱分析来检测候选信道。 在识别候选信道之后，无线通信设备可以切换到该信道以接收和处理一个或多个分组，以确定可用于关联的BSS的存在。

公开(公告)号：US20140073352A1

公开(公告)日：2014-03-13

申请号：US14023098

申请日：2013-09-10

Applicant: QUALCOMM Incorporated

Inventor： Carlos Horacio ALDANA ,  Ning ZHANG

IPC: G01S5/10

CPC classification number: G01S5/10 ,  G01S13/876

Abstract: According to embodiments, methods are presented to for determining precise location of a device by exchanging a plurality of messages with one or more devices (e.g., access points or mobile devices) in vicinity. Embodiments may calculate distance between the devices using round trip time that takes to transmit and receive signals to/from each of the devices. Using definitions that account for multiple input multiple output (MIMO) transmission, the embodiments determine precise location of a device.

Abstract translation: 根据实施例，呈现用于通过在附近与一个或多个设备（例如，接入点或移动设备）交换多个消息来确定设备的精确位置的方法。 实施例可以使用往返于每个设备发送和接收信号的往返时间来计算设备之间的距离。 使用考虑多输入多输出（MIMO）传输的定义，这些实施例确定设备的精确位置。

公开(公告)号：US20190007180A1

公开(公告)日：2019-01-03

申请号：US16022250

申请日：2018-06-28

Applicant: QUALCOMM Incorporated

Inventor： Kai SHI ,  Bin TIAN ,  Youhan KIM ,  Rashmi NANDA ,  Lochan VERMA ,  Ning ZHANG

IPC: H04L5/00

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for sub-channel selection in a wireless network. In one aspect, a first message is generated at a first electronic device of a wireless network in response to a number of electronic devices of a wireless network being less than a threshold number. The first message indicates particular sub-channels of a transmission band that are to be used for a transmission in a single user (SU) mode of operation to a second electronic device of the wireless network. The method further includes sending the first message to the second electronic device. The first message indicates that a second message is to be sent to the second electronic device using the particular sub-channels. The method further includes sending the second message to the second electronic device via the transmission using the particular sub-channels.

公开(公告)号：US20170265210A1

公开(公告)日：2017-09-14

申请号：US15456128

申请日：2017-03-10

Applicant: QUALCOMM Incorporated

Inventor： Xiaolong HUANG ,  Srinivas KATAR ,  Hao ZHU ,  James CHO ,  Alireza RAISSINIA ,  Chao ZOU ,  Sabita NAHATA ,  Guido Robert FREDERIKS ,  Raja BANERJEA ,  Chao CHENG ,  Ning ZHANG ,  Zhanfeng JIA

IPC: H04W72/12 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04W72/121 ,  H04L5/0007 ,  H04W72/0453 ,  H04W72/0486 ,  H04W72/10 ,  H04W72/1247 ,  H04W72/1252 ,  H04W74/04 ,  H04W84/12 ,  H04W88/08

Abstract: Apparatuses and methods for separately scheduling and grouping multiple wireless local area network (WLAN) users are disclosed. The apparatuses and methods include scheduling, at an access point (AP), multiple wireless stations (STAs) associated with the AP; identifying based at least in part on the ranking, a group of STAs from the STAs for transmission of data over a single orthogonal frequency-division multiple access (OFDMA) frame in a WLAN; and providing information resulting from scheduling the STAs and identifying the group of STAs to at least one of the STAs. In others aspects, the apparatuses and methods include receiving at an STA from an AP, scheduling information for a group of STAs including the STA; and transmitting based on the scheduling information, data over an OFDMA frame in an unlicensed or shared spectrum, the STA having a traffic load different from the traffic load of the at least one additional STA.