公开(公告)号：WO2019161189A1

公开(公告)日：2019-08-22

申请号：PCT/US2019/018205

申请日：2019-02-15

Applicant: QUALCOMM INCORPORATED

Inventor： VERMA, Lochan ,  TIAN, Bin ,  VERMANI, Sameer ,  YANG, Lin ,  CHEN, Jialing Li ,  KIM, Youhan

IPC: H04L5/00

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for partial bandwidth feedback based on punctured sounding. Punctured sounding is used by a transmitting device that omits portions of a channel bandwidth based on a puncturing pattern. The puncturing pattern may be based on an exclusion bandwidth zone to avoid transmissions on portions of channels that may interfere with an incumbent system transmission. The puncturing pattern may be indicated in a null data packet announcement (NDPA) to inform the receiving device that a subsequent NDP will be punctured. The receiving device may determine the feedback by measuring the portions of the NDP that are not punctured. Beamforming may be enhanced by using punctured sounding between two beamforming endpoints.

公开(公告)号：WO2019089598A3

公开(公告)日：2019-05-09

申请号：PCT/US2018/058216

申请日：2018-10-30

Applicant: QUALCOMM INCORPORATED

Inventor： VERMA, Lochan ,  TIAN, Bin ,  YANG, Lin ,  CHEN, Jialing Li ,  VERMANI, Sameer ,  KIM, Youhan

IPC: H04L5/00

Abstract: The present disclosure provides techniques for preamble puncturing in wireless local area networks (WLANs). In one implementation, an access point (AP) can identify, within a channel width, one or more bandwidth regions associated with incumbent technologies. The AP can broadcast or advertise, to a basic service set (BSS) initiated or started by the AP, a preamble puncture pattern in one or more management frames, the preamble puncture pattern being based on the bandwidth regions associated with incumbent technologies. In another implementation, an AP can identify a single user (SU) preamble puncture transmission, and can signal in a common portion of a SIG-B field of a multi-user (MU) PPDU format that a resource unit (RU) size is assigned to a same user to indicate the SU preamble puncture transmission. Although these techniques may be used in any frequency band, typical frequency bands may include, but are not limited to, a 2.4 GHz band, a 5 GHz band, and/or a 6 GHz band.

公开(公告)号：WO2019089598A2

公开(公告)日：2019-05-09

申请号：PCT/US2018/058216

申请日：2018-10-30

Applicant: QUALCOMM INCORPORATED

Inventor： VERMA, Lochan ,  TIAN, Bin ,  YANG, Lin ,  CHEN, Jialing Li ,  VERMANI, Sameer ,  KIM, Youhan

Abstract: The present disclosure provides techniques for preamble puncturing in wireless local area networks (WLANs). In one implementation, an access point (AP) can identify, within a channel width, one or more bandwidth regions associated with incumbent technologies. The AP can broadcast or advertise, to a basic service set (BSS) initiated or started by the AP, a preamble puncture pattern in one or more management frames, the preamble puncture pattern being based on the bandwidth regions associated with incumbent technologies. In another implementation, an AP can identify a single user (SU) preamble puncture transmission, and can signal in a common portion of a SIG-B field of a multi-user (MU) PPDU format that a resource unit (RU) size is assigned to a same user to indicate the SU preamble puncture transmission. Although these techniques may be used in any frequency band, typical frequency bands may include, but are not limited to, a 2.4 GHz band, a 5 GHz band, and/or a 6 GHz band.

公开(公告)号：WO2018111518A1

公开(公告)日：2018-06-21

申请号：PCT/US2017/063093

申请日：2017-11-22

Applicant: QUALCOMM INCORPORATED

Inventor： HU, Zixia ,  KIM, Youhan ,  SHI, Kai

IPC: H04L25/02 ,  H04W84/12

CPC classification number: H04L25/0202 ,  H04B1/16 ,  H04L27/01 ,  H04L27/261 ,  H04W84/12

Abstract: A receiver includes power estimation circuitry configured to estimate a first power associated with a first field of a packet and a second power associated with a second field of the packet. The receiver additionally includes channel estimation circuitry configured to determine a second channel estimation of a channel associated with communication of the packet. The second channel estimation is determined based on the first power, the second power, and a first channel estimation of the channel.

公开(公告)号：WO2017192203A1

公开(公告)日：2017-11-09

申请号：PCT/US2017/020736

申请日：2017-03-03

Applicant: QUALCOMM INCORPORATED

Inventor： EMADI, Mohammad ,  KHALILI, Alireza ,  TAGHIVAND, Mazhareddin ,  KIM, Youhan ,  DIETZE, Kai ,  KOHLMANN, Michael ,  GARDNER, James ,  YUCEK, Tevfik ,  KIM, Beomsup

IPC: H04W52/02

CPC classification number: H04W52/0245 ,  H04B17/318 ,  H04W84/12 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/164 ,  Y02D70/22

Abstract: Power conservation in a radio frequency front end of a user equipment (UE) during wireless local area network (WLAN) communication is achieved by adjusting a power mode of the radio frequency front end. In one instance, the UE determines a signal strength of a received frame of a packet during a short training field of a preamble of the received frame. The determining occurs when a WLAN receiver is operating in a low power mode. The UE then switches the WLAN receiver to a high power mode during the short training field of the preamble or during a first segment of a long training field of the preamble when the signal strength is above a predetermined signal strength.

Abstract translation: 在无线局域网（WLAN）通信期间用户设备（UE）的射频前端中的功率节省是通过调整射频前端的功率模式来实现的。 在一个实例中，UE在接收帧的前导码的短训练字段期间确定分组的接收帧的信号强度。 当WLAN接收器在低功率模式下运行时，确定发生。 然后，当信号强度高于预定信号强度时，UE在前导码的短训练字段期间或在前导码的长训练字段的第一段期间将WLAN接收器切换到高功率模式。

公开(公告)号：WO2017180845A1

公开(公告)日：2017-10-19

申请号：PCT/US2017/027376

申请日：2017-04-13

Applicant: QUALCOMM INCORPORATED

Inventor： BANERJEA, Raja ,  GREEN, Michael Richard ,  TIAN, Bin ,  JONES IV, Vincent Knowles ,  KIM, Youhan ,  VERMANI, Sameer

IPC: H04B1/713

Abstract: Method and systems are disclosed for qualifying a wireless device as frequency hopping device. In some aspects, an access point (AP) may determine a frequency hopping pattern for the wireless device, and then allocate a sequence of unique resource units to the wireless device based on the frequency hopping pattern. Each of the unique resource units include a different set of frequency subcarriers. The AP may receive a series of uplink orthogonal frequency-division multiple access (OFDMA) transmissions from the wireless device on the allocated sequence of unique resource units.

Abstract translation: 公开了用于将无线设备限定为跳频设备的方法和系统。 在一些方面，接入点（AP）可以确定无线设备的跳频模式，然后基于跳频模式向无线设备分配唯一资源单元的序列。 每个唯一资源单元包括不同的一组频率副载波。 AP可以在分配的唯一资源单元序列上从无线设备接收一系列上行链路正交频分多址（OFDMA）传输。

公开(公告)号：WO2017143201A1

公开(公告)日：2017-08-24

申请号：PCT/US2017/018388

申请日：2017-02-17

Applicant: QUALCOMM INCORPORATED

Inventor： YANG, Lin ,  TIAN, Bin ,  KIM, Youhan

IPC: H04L5/00 ,  H04L1/00

CPC classification number: H04W40/02 ,  H04L1/0005 ,  H04L1/0011 ,  H04L1/0015 ,  H04L1/20 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/0073 ,  H04W28/20 ,  H04W52/22 ,  H04W72/044

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, an apparatus is configured to determine an RU allocated to the apparatus within a communication bandwidth for OFDMA transmission. The apparatus is configured to transmit a data packet on the allocated RU based on requirements associated with an amount of inter-RU interference to other RUs allocated to other wireless devices. In an aspect, the requirements may include at least one of an error vector magnitude (EVM) requirement or a spectral mask requirement.

Abstract translation: 提供了一种用于无线通信的方法，装置和计算机可读介质。 在一个方面中，一种装置被配置为确定在用于OFDMA传输的通信带宽内分配给该装置的RU。 该装置被配置为基于与分配给其他无线设备的其他RU相关联的与RU间干扰量相关联的要求，在分配的RU上传送数据分组。 在一个方面，要求可以包括误差矢量幅度（EVM）要求或频谱掩模要求中的至少一个。

公开(公告)号：WO2017136036A1

公开(公告)日：2017-08-10

申请号：PCT/US2016/065804

申请日：2016-12-09

Applicant: QUALCOMM INCORPORATED

Inventor： CHEN, Chin-Hung ,  KIM, Youhan ,  VAN ZELST, Albert ,  ZHANG, Ning

IPC: H04B7/06

CPC classification number: H04B7/0626 ,  H04B7/0617 ,  H04B17/318 ,  H04L25/0204 ,  H04L25/0228 ,  H04W52/241 ,  H04W84/12

Abstract: A method of adjusting single-stream transmissions by a wireless device based on channel state information (CSI). The wireless device generates a sounding packet formatted for transmission via multiple spatial streams, and transmits the sounding packet to a receiving device via a single one of the multiple spatial streams. For example, the wireless device may be a single-antenna device. The wireless device further receives channel state information (CSI) from the receiving device based at least in part on the sounding packet. The wireless device then adjusts one or more characteristics of single-stream transmissions to the receiving device based at least in part on the received CSI.

Abstract translation: 基于信道状态信息（CSI）调整无线设备的单流传输的方法。 无线设备生成格式化用于经由多个空间流的传输的探测包，并且经由多个空间流中的单个空间流将探测包发送到接收设备。 例如，无线设备可以是单天线设备。 无线设备还至少部分地基于探测分组进一步接收来自接收设备的信道状态信息（CSI）。 无线设备然后至少部分地基于所接收的CSI来调整到接收设备的单流传输的一个或多个特性。

公开(公告)号：WO2017074569A1

公开(公告)日：2017-05-04

申请号：PCT/US2016/051110

申请日：2016-09-09

Applicant: QUALCOMM INCORPORATED

Inventor： YANG, Lin ,  TIAN, Bin ,  KIM, Youhan

IPC: H04W52/36 ,  G01R23/16 ,  H04L27/26

CPC classification number: H04L43/0876 ,  G01R23/16 ,  H04L27/2602 ,  H04L43/18 ,  H04W52/36 ,  H04W52/367 ,  H04W72/0453 ,  H04W84/12 ,  H04W88/02

Abstract: Methods, systems, and devices are described for wireless communications. A wireless station includes a transmitter to generate a wideband contiguous waveform in a band. The transmitter transmits the waveform that conforms to spectral masking attributes and spectral flatness attributes. The wireless station, or another device supporting spectrum analysis functions, detects a wideband contiguous waveform and performs spectrum analysis of the waveform. The wireless station includes a resolution bandwidth of 25 KHz and a video bandwidth of 7.5 KHz.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 无线站包括发射机以在频带中生成宽带连续波形。 发射机发射符合频谱屏蔽属性和频谱平坦度属性的波形。 无线站或支持频谱分析功能的其他设备检测宽带连续波形并执行波形的频谱分析。 无线站的分辨率带宽为25 KHz，视频带宽为7.5 KHz。

公开(公告)号：WO2017023480A1

公开(公告)日：2017-02-09

申请号：PCT/US2016/041194

申请日：2016-07-06

Applicant: QUALCOMM INCORPORATED

Inventor： HOMCHAUDHURI, Sandip ,  KIM, Youhan ,  JASTI, Srinivas ,  CHOI, Sunghun ,  PHOGAT, Vikram ,  YUAN, Ye ,  PATEL, Umang Sureshbhai ,  CHEN, Lian ,  KUMAR, Sumeet ,  CHO, James Simon ,  AIDA, Sreepathy ,  JIA, Zhanfeng ,  YENGANTI, Pradeep Kumar

IPC: H04W52/02 ,  H04B7/00

CPC classification number: H04W52/0206 ,  H04B7/00 ,  H04B7/0689 ,  H04B7/0871 ,  H04W52/0258 ,  H04W52/028 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/23 ,  Y02D70/444

Abstract: Systems and methods for wireless communications are disclosed. More particularly, aspects generally relate to an apparatus for wireless communications. The apparatus generally includes an interface for communicating with a plurality of wireless nodes via a plurality of antennas, and a processing system configured to determine a power state of each of the plurality of wireless nodes, and change from a first antenna mode used for communicating with the wireless nodes using a first number of spatial streams to a second antenna mode used for communicating with the wireless nodes using a second number of spatial streams, based on the determined power states of the wireless nodes

Abstract translation: 公开了用于无线通信的系统和方法。 更具体地，方面通常涉及用于无线通信的装置。 该装置通常包括用于经由多个天线与多个无线节点进行通信的接口，以及配置为确定多个无线节点中的每一个的功率状态并且从用于与 所述无线节点基于所确定的无线节点的功率状态，使用第二数量的空间流到第二天线模式，所述第二天线模式用于使用第二数量的空间流与所述无线节点进行通信