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    OPTIMIZING NETWORK CONNECTION AND ROAMING USING RANGING INFORMATION
    11.
    发明申请
    OPTIMIZING NETWORK CONNECTION AND ROAMING USING RANGING INFORMATION 审中-公开

    公开(公告)号：US20170171833A1

    公开(公告)日：2017-06-15

    申请号：US15373560

    申请日：2016-12-09

    Applicant: QUALCOMM Incorporated

    Inventor： Santosh Vamaraju ,  Hoonki Lee ,  Carlos Horacio Aldana ,  Ravi Gidvani

    IPC: H04W60/04 ,  H04W48/20 ,  H04W36/30 ,  H04W36/00 ,  H04W8/14

    CPC classification number: H04W60/04 ,  H04W8/14 ,  H04W36/0094 ,  H04W36/30 ,  H04W48/16 ,  H04W48/20

    Abstract: This disclosure provides systems, methods and apparatus for establishing and maintaining network connections based on ranging information. In one aspect, a wireless device is configured to identify one or more candidate access points (APs) within a vicinity of the wireless device, and exchange fine timing measurement (FTM) frames with candidate APs to determine respective distances between the wireless device and each of the candidate APs. In some aspects, the exchange of FTM frames may be performed when the wireless device is not associated with any AP. In some other aspects, the exchange of FTM frames may be performed when the wireless device is already associated with an existing AP, for example, to determine whether a roaming condition is satisfied. The wireless device then selects one of the candidate APs, based at least in part on the FTM frames, and associates with the selected candidate AP.

    EFFICIENT PROTECTION OF BASIC SERVICE SET TRAFFIC
    12.
    发明申请
    EFFICIENT PROTECTION OF BASIC SERVICE SET TRAFFIC 审中-公开
    有效保护基本服务集交通

    公开(公告)号：US20160373955A1

    公开(公告)日：2016-12-22

    申请号：US14745343

    申请日：2015-06-19

    Applicant: QUALCOMM Incorporated

    Inventor： Ravi Gidvani ,  Srinivasa Kumar Duvvuri

    IPC: H04W28/02 ,  H04W72/08 ,  H04L5/00

    CPC classification number: H04L5/0055 ,  H04L47/266 ,  H04W28/0205 ,  H04W74/006 ,  H04W74/0816 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/22

    Abstract: Methods, systems, and devices are described for wireless communication. An access point may use a protection mechanism to cause stations to defer from accessing the wireless medium during a quiet duration. During the quiet duration the access point may transmit data packets to stations. After the quiet duration, a contention period may be present to allow stations to monitor the medium to make sure the medium is continuously idle before attempting a transmission. The access point may determine a quiet duration based on a number of data packets pending transmission to at least one station. Furthermore, the access point may transmit data packets to a number of stations during the quiet duration. By determining the quiet duration based on a number of data packets, the access point may reduce the overall number of contention periods which may increase throughput and decrease power consumption.

    Abstract translation: 描述了用于无线通信的方法，系统和设备。 接入点可以使用保护机制来在安静的持续时间期间导致站延迟接入无线介质。 在静音期间，接入点可以向站发送数据分组。 在平静的持续时间之后，可能存在竞争时段，以允许站监控介质，以确保介质在尝试传输之前连续空闲。 接入点可以基于待发送到至少一个站的数据分组的数量来确定安静的持续时间。 此外，接入点可以在安静持续时间期间将数据分组发送到多个站。 通过基于多个数据分组确定安静持续时间，接入点可以减少竞争周期的总数，这可能增加吞吐量并降低功耗。

    Band preference in wireless networks
    17.
    发明授权
    Band preference in wireless networks 有权

    公开(公告)号：US10912088B2

    公开(公告)日：2021-02-02

    申请号：US15994798

    申请日：2018-05-31

    Applicant: QUALCOMM Incorporated

    Inventor： Srinivas Katar ,  Amod Bodas ,  Ramaswamy Venkateshwaran ,  Farrukh Usmani ,  Ravi Gidvani ,  Hang Su

    IPC: H04W72/04 ,  H04W76/10 ,  H04W48/16 ,  H04W8/02

    Abstract: Method, systems, and apparatuses are described for wireless communications. More particularly, a wireless station may connect to a wireless network using a first radio frequency (RF) band and detect a signal strength of the first RF band is greater than a roaming threshold. The wireless station may perform a plurality of scans for support by the wireless network of a second RF band in response to the detected signal strength. Each scan may occur when the signal strength of the first RF band is greater than the roaming threshold. The wireless station may selectively connect to the wireless network using the second RF band based at least in part on the scanning and a throughput supported by the wireless network over the second RF band. The first RF band may be a 2.4 GHz band and the second RF band may be a 5 GHz band.

    MULTIPLE BASIC SERVICE SETS FOR EXTENDED RANGE OPERATION
    19.
    发明申请
    MULTIPLE BASIC SERVICE SETS FOR EXTENDED RANGE OPERATION 审中-公开

    公开(公告)号：US20180184365A1

    公开(公告)日：2018-06-28

    申请号：US15849461

    申请日：2017-12-20

    Applicant: QUALCOMM Incorporated

    Inventor： Ravi Gidvani ,  Alireza Raissinia ,  Ning Zhang ,  Ramaswamy Venkateshwaran

    IPC: H04W48/16 ,  H04W24/02

    CPC classification number: H04W48/16 ,  H04W16/00 ,  H04W24/02 ,  H04W48/12 ,  H04W84/12

    Abstract: Methods, systems, and devices for wireless communication are described. Devices in a wireless network may be grouped into a basic service set (BSS), which may enable coordination of communications within the network. A BSS may have an associated coverage area. Some devices may be operable to communicate using extended range (ER) transmissions, which may increase the size of the coverage area associated with the BSS. In some cases, an access point (AP) may support multiple BSSs with equivalent security profiles. A first BSS may exclusively support ER transmissions, while a second BSS may support non-ER transmissions. Techniques are described for a wireless device to discover one or more of the BSSs associated with a given AP, associate with at least one of the discovered BSSs, and in some cases switch between the BSSs with equivalent security profiles. The discussed techniques may provide more efficient communications in the wireless network.

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