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    TECHNIQUES FOR GROUPING IN MU-MIMO SYSTEMS BASED ON LIMITED PROBING
    11.
    发明申请
    TECHNIQUES FOR GROUPING IN MU-MIMO SYSTEMS BASED ON LIMITED PROBING 审中-公开

    公开(公告)号：US20180337709A1

    公开(公告)日：2018-11-22

    申请号：US15599971

    申请日：2017-05-19

    Applicant: QUALCOMM Incorporated

    Inventor： Chao ZOU ,  Ahmed Ragab ELSHERIF ,  Hao ZHU ,  Srinivas KATAR

    IPC: H04B7/024 ,  H04B7/0452 ,  H04L1/00 ,  H04W88/06 ,  H04W24/08 ,  H04L25/08

    CPC classification number: H04L1/0003 ,  H04B7/0456 ,  H04L1/0009 ,  H04L1/203

    Abstract: The present disclosure provides techniques for grouping in multi-user multiple-input-multiple-output (MU-MIMO) systems by using limited probing. With more wireless stations (STAs) being used in MU-MIMO groups, the probing used to obtain packet error metrics to determine the throughput for selecting the MU-MIMO groups for transmission can become more complex and involve a larger overhead. To reduce the probing overhead, various techniques are described in this disclosure. For example, an access point (AP) can identify a trigger to initiate a packet error probing. In response to the trigger, the AP embeds one or more probing packets that are part of the packet error probing within a short interframe space (SIFS)-burst data transmission process to take advantage of the existing structure of the process. Then, the AP can update at least one packet error metric (e.g., packet error rate or PER) based on feedback received in response to the probing packets.

    ADAPTIVE CHANNEL REUSE MECHANISM IN COMMUNICATION NETWORKS
    12.
    发明申请
    ADAPTIVE CHANNEL REUSE MECHANISM IN COMMUNICATION NETWORKS 有权
    通信网络中的自适应信道重用机制

    公开(公告)号：US20140169186A1

    公开(公告)日：2014-06-19

    申请号：US13713672

    申请日：2012-12-13

    Applicant: QUALCOMM INCORPORATED

    Inventor： Hao ZHU ,  Srinivas KATAR ,  Lawrence W. YONGE, III

    IPC: H04L5/00

    CPC classification number: H04L5/00 ,  H04B3/542 ,  H04B2203/5495 ,  H04L5/006 ,  H04W16/14 ,  H04W74/0808

    Abstract: A feature-capable device that supports channel reuse can execute operations for determining whether to reuse or share a communication channel with a neighbor network when a local network (that comprises the feature-capable device) and/or the neighbor network comprise legacy devices that do not support adaptive channel reuse feature. The feature-capable device can determine channel performance measurements associated with each legacy device in the local network and/or the neighbor network and can compare the channel performance measurements against corresponding performance thresholds. The local network and the neighbor network can reuse the channel if the channel performance measurements associated with all the legacy devices are in accordance with the corresponding performance thresholds. The local network and the neighbor network can share the channel if the channel performance measurements of at least one of the legacy devices is not in accordance with the corresponding performance thresholds.

    Abstract translation: 当本地网络（包括具有能力的设备）和/或邻居网络包括执行的传统设备时，支持信道重用的功能特征的设备可以执行用于确定是否重新使用或与邻居网络共享通信信道的操作 不支持自适应通道重用功能。 具有功能的设备可以确定与本地网络和/或相邻网络中的每个传统设备相关联的信道性能测量，并且可以将信道性能测量值与相应的性能阈值进行比较。 如果与所有传统设备相关联的信道性能测量符合相应的性能阈值，则本地网络和邻居网络可以重用该信道。 如果传统设备中的至少一个的信道性能测量不符合相应的性能阈值，则本地网络和邻居网络可以共享信道。

    DYNAMIC MU-MIMO STAGING FOR REAL-WORLD APPLICATIONS
    14.
    发明公开
    DYNAMIC MU-MIMO STAGING FOR REAL-WORLD APPLICATIONS 审中-公开

    公开(公告)号：US20230337044A1

    公开(公告)日：2023-10-19

    申请号：US17722601

    申请日：2022-04-18

    Applicant: QUALCOMM Incorporated

    Inventor： Nicholas KUCHAREWSKI ,  Ahmed Ragab ELSHERIF ,  Simon Jan BRAND ,  Srinivas KATAR ,  Sandip HOMCHAUDHURI

    IPC: H04W28/02 ,  H04B7/0452

    CPC classification number: H04W28/0268 ,  H04B7/0452 ,  H04W28/0236 ,  H04W84/12

    Abstract: An AP obtains service-level agreement (SLA) parameters indicating at least a delay bound for each of a plurality of traffic flows. The AP receives first packets of a first traffic flow, and delays their transmission for a delay period based on the data carried in the first packets being less than a first threshold. During the delay period, the AP receives second packets of the first traffic flow while also receiving packets of a second traffic flow, groups the second traffic flow with the first traffic flow for an MU-MIMO transmission based on the data carried in the first and second packets of the first traffic flow being greater than the first threshold and the data carried in the packets of the second traffic flow being greater than a second threshold, and transmits the first and second packets traffic flows as an MU-MIMO communication.

    TECHNIQUES FOR HANDLING DATA STALL IN WLAN
    18.
    发明申请
    TECHNIQUES FOR HANDLING DATA STALL IN WLAN 有权

    公开(公告)号：US20170245190A1

    公开(公告)日：2017-08-24

    申请号：US15047385

    申请日：2016-02-18

    Applicant: QUALCOMM Incorporated

    Inventor： Srinivas KATAR ,  Arnaud MEYLAN ,  Farrukh USMANI ,  Srikant KUPPA ,  Subramania Sharma THANDAVESWARAN ,  Ramaswamy VENKATESHWARAN ,  Hoonki LEE ,  Viral MODI

    IPC: H04W36/30 ,  H04W36/36 ,  H04W84/12

    CPC classification number: H04W36/30 ,  H04W36/14 ,  H04W36/26 ,  H04W36/36 ,  H04W84/12

    Abstract: Aspects of the present disclosure describe various techniques for handling data stall in wireless local area networks (WLANs). These techniques include, for example, a method in which wireless communications are switched at a wireless station from a first network device associated with a first radio access technology (RAT) (e.g., WLAN technology) to a second network device associated with a second RAT (e.g., wireless wide area network (WWAN) technology). The wireless station may then monitor network devices associated with the first RAT, including the first network device. The wireless station may filter results from the monitoring based at least in part on one or more threshold value and identify, based on the filtered results, one of the network devices as suitable for the wireless communications. The wireless communications may then be switched at the wireless station from the second network device to the one network device identified as suitable for the wireless communications.

    BACK-TO-BACK TRANSMISSIONS VIA A MULTI-HOP RELAY PATH USING FLOW-SPECIFIC RESOURCE RESERVATION
    20.
    发明申请
    BACK-TO-BACK TRANSMISSIONS VIA A MULTI-HOP RELAY PATH USING FLOW-SPECIFIC RESOURCE RESERVATION 有权

    公开(公告)号：US20250008552A1

    公开(公告)日：2025-01-02

    申请号：US18344011

    申请日：2023-06-29

    Applicant: QUALCOMM Incorporated

    Inventor： Srinivas KATAR ,  Xiaolong HUANG ,  Gyanranjan HAZARIKA ,  Manish SHUKLA ,  Sandip HOMCHAUDHURI

    IPC: H04W74/00 ,  H04B7/155 ,  H04W74/08

    Abstract: This disclosure provides methods, components, devices and systems for back-to-back transmissions via a multi-hop relay path using flow-specific resource reservation. Some aspects more specifically relate to flow-specific transmission opportunity (TXOP) sharing and/or orthogonal channel reservation in combination with a flow-specific sequence of time slots. In implementations in which flow-specific TXOP sharing is employed in combination with a flow-specific sequence of time slots, one or more wireless communication devices may determine whether a shared TXOP supersedes the flow-specific sequence of time slots in accordance with whether the shared TXOP is associated with a same flow as the sequence of time slots. In implementations in which orthogonal channel reservation is employed in combination with a flow-specific sequence of time slots, each wireless communication device of a multi-hop relay path may receive an indication of or otherwise be configured with a frequency channel via which to transmit.

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