公开(公告)号：US12167469B2

公开(公告)日：2024-12-10

申请号：US18321135

申请日：2023-05-22

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  James Simon Cho ,  George Cherian ,  Simone Merlin ,  Abhishek Pramod Patil

IPC: H04W74/0833 ,  H04L69/323 ,  H04W74/00 ,  H04W84/12 ,  H04W88/08

Abstract: An access point (AP) may prioritize the allocation of uplink resources between multiple basic service sets (BSSs). In some aspects, the AP may select one of a plurality of BSSs, may allocate one or more random-access resource units (RUs) to only the selected BSS, and may transmit, for each of the selected BSSs, a respective frame indicating the random-access RUs allocated to that BSS. Wireless devices belonging to the selected BSS may contend for access to the random-access RUs allocated by the frame, and then transmit uplink data using the random-access RUs.

公开(公告)号：US20200015181A1

公开(公告)日：2020-01-09

申请号：US16505506

申请日：2019-07-08

Applicant: QUALCOMM Incorporated

Inventor： Abhishek Pramod Patil ,  Yongchun Xiao ,  Ravi Gidvani ,  Sandip HomChaudhuri ,  Pradeep Kumar Yenganti ,  Arul Davidson Emmanuel ,  James Simon Cho ,  Padmanabhan Venkataraman Karthic ,  George Cherian ,  Alfred Asterjadhi ,  Jouni Kalevi Malinen

IPC: H04W56/00 ,  H04L5/00 ,  H04W84/12

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for analyzing management frames for multiple basic service sets (BSSs). In one aspect, a wireless node may obtain a first management frame from a wireless local area network (WLAN) apparatus, the WLAN apparatus operating multiple virtual access points (VAPs) respectively corresponding to multiple BSSs. The wireless node may determine whether the first management frame includes a BSS profile of a BSS associated with the wireless node based, at least in part, on an arrangement of a plurality of BSS profiles within one or more management frames. The wireless node may determine to further process the first management frame based, at least in part, on a determination that the first management frame includes the BSS profile of the BSS associated with the wireless node.

公开(公告)号：US20190306790A1

公开(公告)日：2019-10-03

申请号：US15938784

申请日：2018-03-28

Applicant: QUALCOMM Incorporated

Inventor： Sanoop Kottontavida ,  Xiaolong Huang ,  Yongchun Xiao ,  Naveen Gangadharan ,  Srinivas Katar ,  Sandip Homchaudhuri ,  James Simon Cho

IPC: H04W52/02 ,  H04W28/02 ,  H04W76/28 ,  H04W72/12

Abstract: Various aspects of the disclosure provide for Target Wake Time (TWT) slot scheduling in a communication network. The various aspects includes determining a number of stations in the basic service set (BSS) of an access point (AP) exceeding a minimum number of stations, determining whether to establish TWT slot scheduling for at least one or more of the stations based on one or more operational condition of the communication network, and establishing a TWT slot scheduling of the one or more of the stations if the one or more operational condition of the communication network, individually or collectively, satisfy a threshold.

公开(公告)号：US20170265205A1

公开(公告)日：2017-09-14

申请号：US15249344

申请日：2016-08-26

Applicant: QUALCOMM Incorporated

Inventor： Sandip HomChaudhuri ,  Gangadhar Burra ,  Eric Y. Tsou ,  Chintan Shirish Shah ,  Francis Ming-Meng Ngai ,  Alexei Yurievitch Gorokhov ,  Pattabiraman Subramanian ,  Ning Zhang ,  James Simon Cho

IPC: H04W72/08 ,  H04W24/08 ,  H04B7/04 ,  H04W72/04 ,  H04W28/02

CPC classification number: H04W72/085 ,  H04B7/0413 ,  H04B7/063 ,  H04B7/0691 ,  H04W16/14 ,  H04W24/08 ,  H04W28/0289 ,  H04W72/042 ,  H04W72/0446

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may be communicating on a radio frequency spectrum band of a first radio access technology (RAT) using a set of antennas. The UE may reconfigure at least one antenna of the set of antennas to perform a first scan on the radio frequency spectrum band of a second RAT. The UE may determine, based on the first scan, whether to reconfigure a remaining portion of the antennas of the set of antennas to perform a second scan on the radio frequency spectrum band of the second RAT.

公开(公告)号：US20160088567A1

公开(公告)日：2016-03-24

申请号：US14491936

申请日：2014-09-19

Applicant: QUALCOMM Incorporated

Inventor： Sandip HomChaudhuri ,  Fnu Rajkumar Samuel ,  Nitin Ashok Changlani ,  Arunkumar Jayaraman ,  Pradeep Baliganapalli Nagaraju ,  Sumeet Kumar ,  Lian Chen ,  James Simon Cho

IPC: H04W52/02 ,  H04L12/807 ,  H04B17/30

CPC classification number: H04W52/0274 ,  H04B17/30 ,  H04L47/27 ,  H04W28/02 ,  H04W52/0216 ,  H04W52/0238 ,  H04W52/0241 ,  H04W52/0245 ,  H04W72/12 ,  Y02D70/142 ,  Y02D70/22

Abstract: Methods, systems, and devices are described for adapting blind reception duration for range and congestion. A wireless station may measure channel conditions (e.g., range to an access point (AP) and channel congestion), and adjust one or more sleep timers based on the conditions. The sleep timers may each be associated with a window for reception of an expected transmission. If the transmission is not received in the window, the station may enter a sleep state to conserve power. In one example, a beacon miss timer is adjusted, and the expected wireless transmission is a delivery traffic indication message (DTIM). In another example, a content after beacon (CAB) timer is adjusted and the expected wireless transmission is the CAB. In some cases, the station may measure a delay for a number of beacons and determine the adjustment based on the delays.

Abstract translation: 描述了用于适应范围和拥塞的盲接收持续时间的方法，系统和设备。 无线站可以测量信道条件（例如，到接入点（AP）的范围和信道拥塞），并且基于条件来调整一个或多个睡眠定时器。 睡眠定时器可以各自与用于接收预期传输的窗口相关联。 如果窗口中没有接收到传输，则站可能进入睡眠状态以节省电力。 在一个示例中，调整信标缺失定时器，并且期望的无线传输是传送业务指示消息（DTIM）。 在另一示例中，调整了信标（CAB）定时器之后的内容，并且预期的无线传输是CAB。 在某些情况下，车站可以测量多个信标的延迟，并根据延迟确定调整。

公开(公告)号：US09236978B2

公开(公告)日：2016-01-12

申请号：US14541120

申请日：2014-11-13

Applicant: QUALCOMM Incorporated

Inventor： Sandip Homchaudhuri ,  Guido Robert Frederiks ,  Geeta Hiremath ,  James Simon Cho ,  Alireza Raissinia ,  Didier Johannes Richard Van Nee

IPC: G01R31/08 ,  H04L1/20 ,  H04L1/00 ,  H04W52/02 ,  H04L1/24 ,  H04W24/08

CPC classification number: H04L1/201 ,  H04L1/0045 ,  H04L1/0053 ,  H04L1/0054 ,  H04L1/20 ,  H04L1/242 ,  H04W24/08 ,  H04W52/0216 ,  H04W52/0245 ,  H04W88/08 ,  Y02D70/1224 ,  Y02D70/1262 ,  Y02D70/142

Abstract: This disclosure describes techniques for operating a client device to communicate with a wireless access point to validate data within a frame by comparing channel quality metrics and duration metrics to thresholds. Information received within a validity window may be treated as correctly received even if the frame fails a subsequent verification process or if reception of the frame is terminated prior to the end of the frame.

Abstract translation: 本公开描述了用于操作客户端设备以与无线接入点通信以通过将信道质量度量和持续时间度量与阈值进行比较来验证帧内的数据的技术。 在有效性窗口内接收到的信息可以被视为正确接收，即使帧失败了后续的验证过程，或者如果在帧结束之前终止帧的接收。

公开(公告)号：US09161330B2

公开(公告)日：2015-10-13

申请号：US13970382

申请日：2013-08-19

Applicant: QUALCOMM Incorporated

Inventor： Sandip Homchaudhuri ,  Carlos Horacio Aldana ,  Xiaoxin Zhang ,  James Simon Cho

IPC: H04L1/00 ,  H04W64/00

CPC classification number: H04W64/00

Abstract: A system and method are disclosed for performing ranging operations between two wireless devices without employing cyclic shift diversity (CSD) compensation techniques. For some embodiments, a first wireless device sends a negotiation request frame requesting the second wireless device to respond to subsequently received frames of a specified type using a selected one of the transmit chains in the second wireless device. Thereafter, the first wireless device sends a data frame to the second wireless device to initiate a ranging operation. The second wireless device sends a response frame of the specified type to the first wireless device using the selected one of the transmit chains.

Abstract translation: 公开了一种在两个无线设备之间执行测距操作而不采用循环移位分集（CSD）补偿技术的系统和方法。 对于一些实施例，第一无线设备发送协商请求帧，请求第二无线设备使用第二无线设备中的所选发送链中的所选择的一个响应所接收的指定类型的帧。 此后，第一无线设备向第二无线设备发送数据帧以发起测距操作。 第二无线设备使用所选择的发送链之一向第一无线设备发送指定类型的响应帧。

公开(公告)号：US20150181535A1

公开(公告)日：2015-06-25

申请号：US14588444

申请日：2015-01-01

Applicant: QUALCOMM Incorporated

Inventor： James Simon Cho ,  Shiwei Zhao

IPC: H04W52/18 ,  H04L12/26 ,  H04W52/38

CPC classification number: H04W52/18 ,  H04L1/1671 ,  H04L1/1874 ,  H04L43/065 ,  H04L47/14 ,  H04L47/30 ,  H04W28/02 ,  H04W28/22 ,  H04W52/38 ,  H04W84/12

Abstract: System and method for improving channel efficiency in a wireless link between an access-point transceiver and a first transceiver. The first transceiver may have a first data throughput rate that is lower than the maximum possible data throughput rate of the wireless link. The first transceiver may include a first receive buffer. An indication of the first data throughput rate and a size of the first receive buffer may be received and stored by the access-point transceiver. A first size of a first data packet for transmission to the first transceiver may be determined by the access-point transceiver based on one or more of the first data throughput rate and/or the size of the first receive buffer. The first data packet of the first size may be transmitted to the first transceiver by the access-point transceiver at a data rate that is higher than the first data throughput rate.

Abstract translation: 用于提高接入点收发器和第一收发器之间的无线链路中的信道效率的系统和方法。 第一收发器可以具有低于无线链路的最大可能数据吞吐速率的第一数据吞吐率。 第一收发器可以包括第一接收缓冲器。 可以由接入点收发器接收并存储第一数据吞吐率的指示和第一接收缓冲器的大小。 用于传输到第一收发器的第一数据分组的第一大小可以由接入点收发机基于第一数据吞吐率和/或第一接收缓冲器的大小中的一个或多个来确定。 第一大小的第一数据分组可以以高于第一数据吞吐率的数据速率由接入点收发器发送到第一收发器。

公开(公告)号：US20140341098A1

公开(公告)日：2014-11-20

申请号：US14277613

申请日：2014-05-14

Applicant: QUALCOMM Incorporated

Inventor： James Simon Cho ,  Arunkumar Jayaraman ,  Guido Robert Frederiks ,  Zhanfeng Jia ,  Shu Du ,  Alireza Raissinia ,  Jibing Wang ,  Sandip HomChaudhuri

IPC: H04W52/02 ,  H04L1/08

CPC classification number: H04W52/0238 ,  H04L1/08 ,  H04W52/0206 ,  H04W52/0216 ,  H04W52/0235 ,  H04W72/02 ,  H04W84/12 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22

Abstract: Methods, systems, and devices are described for power conservation in a wireless communications system through efficient transmissions and acknowledgements of information between an AP and a station. The time between a determination by a station to enter a power saving mode and entering network sleep mode by the station may be reduced through a transmission, by an AP, of an MPDU to the station successive to an SIFS after transmission of an acknowledgement to the station of a PS-Poll frame from the station. The time to enter a power saving mode by a station may also be reduced through transmission of A-MPDUs in which a last MPDU of the A-MPDU has an indicator bit cleared to indicate no additional data is to be transmitted. An AP may prevent a retransmission of an MPDU to the station in the absence of an acknowledgement from the station, to further enhance efficiency.

Abstract translation: 描述了无线通信系统中的功率节省的方法，系统和设备，通过AP和站之间的有效传输和信息确认。 在站点确定进入节电模式并进入网络睡眠模式之间的时间可以通过AP向MPI发送确认之后的MPDU向连续的SIFS的站传输而减少 站点的PS-Poll帧。 由站点进入省电模式的时间也可以通过A-MPDU的传输来减少，其中A-MPDU的最后一个MPDU被清除以指示不发送附加数据。 在没有来自站的确认的情况下，AP可以阻止对站的MPDU的重传，以进一步提高效率。

公开(公告)号：US20140269964A1

公开(公告)日：2014-09-18

申请号：US14059073

申请日：2013-10-21

Applicant: QUALCOMM Incorporated

Inventor： Shu Du ,  Qinghai Gao ,  James Simon Cho ,  Chin-Hung Chen ,  Didier Johannes Richard Van Nee

IPC: H04B7/04

CPC classification number: H04B7/0452 ,  H04B7/0617 ,  H04B7/0691 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/009 ,  H04L1/06 ,  H04L1/1621 ,  H04L1/1685

Abstract: An access point can include an array of antennas and a smart antenna selector. The smart antenna selector is configured to select a subset of antennas from the antenna array for use in multi-user multiple-input multiple-output (MU MIMO) data transmissions. Stations that are communicatively coupled to the access point can be selected for inclusion in a multi-user group based, at least in part, on performance measurements of the stations. Performance measurements are determined directly and indirectly from data transmissions sent in response to sounding packets. Antennas for use in MU MIMO data transmissions are selected for the antenna array based, at least in part, on previous antenna selections used for single user data transmissions.

Abstract translation: 接入点可以包括天线阵列和智能天线选择器。 智能天线选择器被配置为从天线阵列中选择天线的子集，以用于多用户多输入多输出（MU MIMO）数据传输。 可以至少部分地基于站的性能测量来选择通信地耦合到接入点的站点以包括在多用户组中。 性能测量直接和间接地从响应于声音分组发送的数据传输确定。 至少部分地基于用于单用户数据传输的先前天线选择天线阵列来选择用于MU MIMO数据传输的天线。