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    Reverse channel switch request from stations to access points for LTE/Wi-Fi coexistence
    21.
    发明授权
    Reverse channel switch request from stations to access points for LTE/Wi-Fi coexistence 有权
    从站到LTE / Wi-Fi共存的接入点的反向信道切换请求

    公开(公告)号：US09565685B2

    公开(公告)日：2017-02-07

    申请号：US14015783

    申请日：2013-08-30

    Applicant: QUALCOMM Incorporated

    Inventor： Sandip Homchaudhuri ,  Richard G. Bahr ,  Arunkumar Jayaraman

    IPC: H04W72/00 ,  H04W72/08 ,  H04W84/00 ,  H04W36/00 ,  H04W36/32

    CPC classification number: H04W72/082 ,  H04W36/0016 ,  H04W36/32 ,  H04W84/005

    Abstract: Methods and apparatuses are described for wireless communications coexistence. In one aspect, a first device may detect an interference produced by a second device co-located with the first device. The first device may communicate with an access point (AP) using a free or open band and the second device may communicate with a cellular network (e.g., LTE network). In response to the detected interference, a message may be transmitted to the AP from the first device with information for the AP to determine whether to switch to a different channel in the open band to communicate with the first device. The AP may receive such a message from each terminal in at least a subset of associated terminals. The AP may determine, from the messages received, to switch to the different channel in the open band and may transmit a message to the associated terminals indicating the switch.

    Abstract translation: 描述了用于无线通信共存的方法和装置。 在一个方面，第一设备可以检测由与第一设备共同定位的第二设备产生的干扰。 第一设备可以使用免费或开放频带与接入点（AP）进行通信，并且第二设备可以与蜂窝网络（例如，LTE网络）进行通信。 响应于检测到的干扰，可以从具有AP的信息的第一设备向AP发送消息，以确定是否切换到开放频带中的与第一设备通信的不同信道。 AP可以在相关终端的至少一个子集中从每个终端接收这样的消息。 AP可以从接收到的消息中确定切换到开放频带中的不同信道，并且可以向指示交换机的相关终端发送消息。

    Systems and methods of offloaded positioning for determining location of WLAN nodes
    23.
    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
    24.
    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。

    Managing hopping target wake times for wireless networks
    26.
    发明授权
    Managing hopping target wake times for wireless networks 有权

    公开(公告)号：US12250587B2

    公开(公告)日：2025-03-11

    申请号：US18349808

    申请日：2023-07-10

    Applicant: QUALCOMM Incorporated

    Inventor： Srikant Kuppa ,  Sandip Homchaudhuri ,  Yongchun Xiao ,  Hao-Jen Cheng

    IPC: H04B7/26 ,  H04B1/713 ,  H04W28/02

    Abstract: Methods, systems, and devices for wireless communications are described. A station (STA) may receive a first signal including an indication of a set of frequency channels for a set of target wake time (TWT) sessions that recur according to a service interval. In some examples, the first signal may indicate a respective frequency channel of the set of frequency channels for each TWT session of the set of target wake time sessions. Each TWT session of the set of TWT sessions may have an associated service period that the STA may be in an awake state. The STA may switch, for the first TWT session, from the first frequency channel to the second frequency channel. In some examples, based on the switching, the STA may communicate a signal during a service period associated with the first TWT session over the second frequency channel.

    Station performance enhancement with multi-link operations (MLO)
    27.
    发明授权
    Station performance enhancement with multi-link operations (MLO) 有权

    公开(公告)号：US11936473B2

    公开(公告)日：2024-03-19

    申请号：US17233341

    申请日：2021-04-16

    Applicant: QUALCOMM Incorporated

    Inventor： Sandip Homchaudhuri ,  Srinivas Katar ,  Chao Zou ,  Alireza Raissinia ,  Lei Li ,  Deepak Nagawade

    IPC: H04L1/00 ,  H04W28/02 ,  H04W28/08

    CPC classification number: H04L1/0018 ,  H04W28/0284 ,  H04W28/0958

    Abstract: This disclosure provides systems, methods, apparatus, including computer programs encoded on computer storage media that support station performance enhancement with multi-link operations. An example method may include determining at least one network metric related to at least one link between a station (STA) and access points (APs) and determining at least one connection parameter related to at least one application operating on the STA. The method may include selecting a mode of multi-link operations based at least in part on the network metric and the connection parameter, wherein the mode of multi-link operations comprises one or more of: a multi-link mode in which the STA operates over a first link and a second link at a same time or a single-link mode in which the STA operates over one of the first or second links and communicating with the one or more APs according to the selected mode.

    Adjustable leak guard for power save during wireless communications
    28.
    发明授权
    Adjustable leak guard for power save during wireless communications 有权

    公开(公告)号：US11917542B2

    公开(公告)日：2024-02-27

    申请号：US17752103

    申请日：2022-05-24

    Applicant: QUALCOMM Incorporated

    Inventor： Sandip Homchaudhuri ,  Steve Saed ,  Srikant Kuppa ,  Guido Robert Frederiks ,  Lian Chen ,  Deepak Shahaji Nagawade ,  Vishwanath Tantry

    IPC: H04W52/02

    CPC classification number: H04W52/0229

    Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for adjusting a time period to delay entering a power save mode (leak guard) for wireless communications. In one aspect, a wireless communication device may adjust a time period to delay entering a power save mode. The time period is associated with the wireless communication device remaining awake to prevent an access point from transmitting to the wireless communication device while the wireless communication device is in the power save mode. The wireless communication device also may provide, to the AP, an indication that the wireless communication device is entering a power save mode, and the wireless communication device may enter the power save mode. Entering the power save mode is at least the adjusted time period after providing the indication to the AP.

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