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：US20170085396A1

公开(公告)日：2017-03-23

申请号：US14861345

申请日：2015-09-22

Applicant: QUALCOMM Incorporated

Inventor： Zixia HU ,  Kai SHI ,  Chin-Hung CHEN

IPC: H04L25/02 ,  H04L5/00 ,  H04W72/04 ,  H04W24/08

CPC classification number: H04L5/0007 ,  H04L25/0222 ,  H04L25/0256

Abstract: Systems and methods for wireless communications are disclosed. More particularly, aspects generally relate to techniques for wireless communications by an apparatus comprising receiving a packet via a wireless channel, determining a parameter indicative of frequency selectivity of the channel, selecting a smoothing filter based on the parameter; and applying the smoothing filter to process at least one portion of the packet.

公开(公告)号：US20190141717A1

公开(公告)日：2019-05-09

申请号：US16157945

申请日：2018-10-11

Applicant: QUALCOMM Incorporated

Inventor： Lin YANG ,  Bin TIAN ,  Jialing Li CHEN ,  Lochan VERMA ,  Sameer VERMANI ,  Ning ZHANG ,  Kai SHI ,  Youhan KIM ,  Vincent Knowles JONES, IV

IPC: H04W72/08 ,  H04L5/00 ,  H04L1/00 ,  H03M13/11 ,  H03M13/00

Abstract: Aspects of the present disclosure provide techniques for interleaving in single user (SU) preamble puncturing in wireless local area networks (WLANs). In one implementation, a wireless device can identify an SU preamble puncture transmission, encode information for the SU preamble puncture transmission to produce encoded bits, parse the encoded bits into multiple segments, parse the encoded bits among multiple resource units (RUs) within each of the multiple segments, and perform a tone interleaving of the encoded bits within each of the multiple RUs. These techniques can be used in a 6 GHz band, as well as a 2.4 GHz band or a 5 GHz band.

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。