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    Systems and methods of offloaded positioning for determining location of WLAN nodes
    11.
    发明授权
    Systems and methods of offloaded positioning for determining location of WLAN nodes 有权
    卸载定位的系统和方法，用于确定WLAN节点的位置

    公开(公告)号：US09332523B2

    公开(公告)日：2016-05-03

    申请号：US14272844

    申请日：2014-05-08

    Applicant: QUALCOMM Incorporated

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

    IPC: H04W64/00 ,  G01S5/02

    CPC classification number: H04W64/003 ,  G01S5/0205 ,  H04W64/00

    Abstract: This disclosure includes systems and methods for determining the location of each of a plurality of STAs of a WLAN where an AP measures the round-trip time (RTT) and the angle of arrival (AOA) to each STA from implicit packet exchange, such as data frame and ACK frame. The AP may then report the RTT and AOA measurements to each STA using a dedicated beacon information element (IE) which multicasts RTT and AOA measurements to the STAs. By employing an additional parameter, namely, angle of arrival AOA, a single AP may compute the two-dimensional location of each associated STA. Further, another beacon IE may multicast mapping of the AIDs to MAC addresses so that the associated STAs can understand such mapping for STAs in a network so that one STA may know the location of other STAs. Encryption may be employed to achieve privacy.

    Abstract translation: 本公开包括用于确定WLAN的多个STA中的每一个的位置的系统和方法，其中AP从隐式分组交换测量到每个STA的往返时间（RTT）和到达角（AOA），例如 数据帧和ACK帧。 然后，AP可以使用将RTT和AOA测量多播到STA的专用信标信息元素（IE）向每个STA报告RTT和AOA测量。 通过采用附加参数，即到达角AOA，单个AP可以计算每个相关STA的二维位置。 此外，另一个信标IE可以将AID多播到MAC地址，使得相关联的STA可以理解网络中的STA的这种映射，使得一个STA可以知道其他STA的位置。 可以采用加密来实现隐私。

    POWER SAVING WITH ADAPTIVE INACTIVITY TIME OUT
    12.
    发明申请
    POWER SAVING WITH ADAPTIVE INACTIVITY TIME OUT 有权
    节省自适应无效时间

    公开(公告)号：US20150098374A1

    公开(公告)日：2015-04-09

    申请号：US14045443

    申请日：2013-10-03

    Applicant: QUALCOMM Incorporated

    Inventor： Sandip Homchaudhuri ,  Pradeep Baliganapalli Nagaraju ,  Nitin Ashok Changlani ,  Jason Alexander Young ,  Arunkumar Jayaraman

    IPC: H04W52/02

    CPC classification number: H04W52/0238 ,  H04W28/0284 ,  H04W52/0216 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146

    Abstract: Power saving for wireless communication devices by adjusting the amount of time, after a last transmission/reception of data, that the device remains in an awake mode listening for more data before the device enters a sleep mode. This time period may be referred to as inactivity time interval or inactivity timeout (ITO). The described features may be employed to improve power savings by taking metrics of channel congestion into account for determining the ITO. The appropriate ITO may be determined to be commensurate with ongoing transmission and/or reception activity. Because error may occur in estimating channel congestion and/or transmission/reception activity, latency bounds based on estimation errors may be managed by classifying the operational mode into multiple regions and employing techniques for mitigating error in congestion estimation based at least in part on the operational mode.

    Abstract translation: 通过在设备进入休眠模式之后，通过调整数据的最后一次发送/接收之后的时间量，使设备保持在唤醒模式中监听更多的数据，从而为无线通信设备省电。 该时间段可以称为不活动时间间隔或不活动超时（ITO）。 所描述的特征可以用于通过考虑信道拥塞的度量来确定ITO来提高功率节省。 可以确定适当的ITO与正在进行的传输和/或接收活动相当。 由于在估计信道拥塞和/或发送/接收活动中可能发生错误，所以可以通过将操作模式分类为多个区域并采用用于减轻拥塞估计中的错误的技术来管理基于估计误差的等待时间范围，所述技术至少部分地基于操作 模式。

    Managed MU-MIMO enablement for real-world applications
    14.
    发明授权
    Managed MU-MIMO enablement for real-world applications 有权

    公开(公告)号：US12267726B2

    公开(公告)日：2025-04-01

    申请号：US17722564

    申请日：2022-04-18

    Applicant: QUALCOMM Incorporated

    Inventor： Ahmed Ragab Elsherif ,  Nicholas Kucharewski ,  Simon Jan Brand ,  Srinivas Katar ,  Xiaolong Huang ,  Sandip Homchaudhuri ,  Nathaniel David Houghton ,  Aravind Seetharaman

    IPC: H04W28/10 ,  H04B7/0452 ,  H04W28/24 ,  H04W84/12

    Abstract: Systems and methods for selectively enabling multi-user (MU) communications are disclosed. In some implementations, an access point (AP) obtains packets associated with a traffic flow, and obtains at least one of service-level agreement (SLA) parameters associated with the traffic flow, attributes of the traffic flow, or network parameters associated with a basic service set (BSS) that includes the AP. The AP provides an indication of whether the traffic flow is suitable for transmission as a single-user (SU) multiple-input multiple output (MIMO) (SU-MIMO) communication, as an MU-MIMO communication, as an orthogonal frequency division multiple access (OFDMA) communication, or as a partial bandwidth (BW) MU-MIMO communication to a WLAN subsystem of the AP, the indication being based on one or more of the SLA parameters, the traffic flow attributes, or the network parameters. The AP initiates transmission of the one or more packets based on the indication.

    UPLINK FLOW CONTROL
    16.
    发明公开
    UPLINK FLOW CONTROL 审中-公开

    公开(公告)号：US20240089791A1

    公开(公告)日：2024-03-14

    申请号：US17944978

    申请日：2022-09-14

    Applicant: QUALCOMM Incorporated

    Inventor： Xiaolong Huang ,  Srinivas Katar ,  Sandip Homchaudhuri ,  Guido Robert Frederiks ,  Bhaskara Peela ,  James Simon Cho ,  Patrick Poon-Cheuk Chan

    IPC: H04W28/02 ,  H04L5/00 ,  H04W24/08

    CPC classification number: H04W28/0273 ,  H04L5/0053 ,  H04W24/08 ,  H04W28/0284

    Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a wireless device may buffer uplink communications. However, such approaches may be improved. An access point (AP) may receive, from a station, uplink traffic of a traffic flow for forwarding to a backhaul network via a backhaul link. The AP may monitor a buffer of the AP to determine that a quantity of buffered uplink traffic received from the station exceeds a buffer quota, the buffer quota set for the traffic flow based on a traffic throughput capacity of the backhaul link and a throughput parameter for the traffic flow. The AP may modify, based on the quantity of buffered uplink traffic exceeding the buffer quota, an uplink communication scheme to reduce the quantity of uplink traffic from the station. The AP may communicate with the station based on the modified uplink communication scheme

    NETWORK TIME SECTORING
    17.
    发明公开
    NETWORK TIME SECTORING 审中-公开

    公开(公告)号：US20230337217A1

    公开(公告)日：2023-10-19

    申请号：US17722641

    申请日：2022-04-18

    Applicant: QUALCOMM Incorporated

    Inventor： Nicholas KUCHAREWSKI ,  Ahmed Ragab Elsherif ,  Simon Jan Brand ,  Srinivas Katar ,  Xiaolong Huang ,  Sandip Homchaudhuri ,  Harinder Singh

    IPC: H04W72/12 ,  H04W72/04 ,  H04B7/0491 ,  H04B7/0452

    CPC classification number: H04W72/1263 ,  H04W72/0446 ,  H04W72/1236 ,  H04B7/0491 ,  H04B7/0452

    Abstract: This disclosure provides methods, devices and systems for provisioning resources for wireless communications. Some implementations more specifically relate to provisioning such resources based on a mapping of wireless communication devices to a number of time sectors that occur periodically and do not overlap other time sectors. In some aspects, each wireless stations (STAs) in a basic service set (BSS) may be mapped to a respective time sector based on attributes associated with the BSS so that communications between a STA and its associated access point (AP) can only occur within the respective time sector(s) to which the STA is mapped. In some other aspects, each AP in a multi-AP environment may be mapped to a respective time sector based on attributes associated with the multi-AP environment so that communications between an AP and its associated STAs can only occur within the respective time sector(s) to which the AP is mapped.

    ASYNCHRONOUS CHANNEL ACCESS CONTROL OF A WIRELESS SYSTEM
    18.
    发明申请
    ASYNCHRONOUS CHANNEL ACCESS CONTROL OF A WIRELESS SYSTEM 有权

    公开(公告)号：US20220279601A1

    公开(公告)日：2022-09-01

    申请号：US17188165

    申请日：2021-03-01

    Applicant: QUALCOMM Incorporated

    Inventor： Qi Xue ,  Srinivas Katar ,  Chao Zou ,  Naveen Gangadharan ,  Neelakantan Nurani Krishnan ,  Sandip Homchaudhuri ,  Xiaolong Huang ,  Anish Ashok

    IPC: H04W74/08

    Abstract: This disclosure provides systems, methods and apparatus for asynchronous channel access control of a wireless system. In some aspects, a device may adjust the priority of one or more PPDUs and may perform other operations to ensure control of a wireless medium at certain times while still allowing for other devices to communicate on the wireless medium. For example, the device may adjust a backoff counter or one or more EDCA parameters to ensure obtaining control of the wireless medium to transmit a first PPDU of an application file. For one or more subsequent PPDUs of the application file, the device may again adjust a backoff counter or one or more EDCA parameters to allow other devices to obtain control of the wireless medium in certain scenarios (such as a second device to provide information back to the device or to otherwise transmit using the shared wireless medium).

    MANAGING TARGET WAKE TIME SCHEDULING USING CONGESTION METRICS
    20.
    发明申请
    MANAGING TARGET WAKE TIME SCHEDULING USING CONGESTION METRICS 审中-公开

    公开(公告)号：US20190253968A1

    公开(公告)日：2019-08-15

    申请号：US15896859

    申请日：2018-02-14

    Applicant: QUALCOMM Incorporated

    Inventor： Yongchun Xiao ,  Sandip Homchaudhuri ,  Pradeep Kumar Yenganti ,  Sanoop Kottontavida ,  James 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.

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