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    Standby time improvement for stations in wireless network
    21.
    发明专利
    Standby time improvement for stations in wireless network 有权
    无线网络中站台的时间改进

    公开(公告)号：JP2013059076A

    公开(公告)日：2013-03-28

    申请号：JP2012236762

    申请日：2012-10-26

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： MEYLAN ARNAUD ,  MANOJ M DESHPANDE ,  NANDA SANJIV

    IPC: H04W52/02 ,  H04W84/12

    CPC classification number: H04W52/0225 ,  H04W52/0216 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/23

    Abstract: PROBLEM TO BE SOLVED: To improve the standby time of a station in a wireless network.SOLUTION: An access point advertises or conveys a maximum listen interval and/or an association timeout supported by that access point. A station operates in a power-save mode and wakes up every listen interval to receive a beacon and any potential traffic for the station. The station selects a suitable listen interval on the basis of the maximum listen interval. The station is dormant for a longer duration than the listen interval and becomes active at least once in every association timeout in order to keep the association with the access point alive.

    Abstract translation: 要解决的问题：提高无线网络中车站的待机时间。 解决方案：接入点通告或传达由该接入点支持的最大监听间隔和/或关联超时。 一个电台工作在省电模式，并唤醒每个监听间隔，以接收电台和车站的任何潜在的流量。 该站根据最大监听间隔选择合适的监听间隔。 该站比监听间隔更长的持续时间休眠，并且在每个关联超时中至少活动一次，以便保持与接入点的关联。 版权所有（C）2013，JPO＆INPIT

    Efficient operation for co-located wlan and bluetooth(r)
    22.
    发明专利
    Efficient operation for co-located wlan and bluetooth(r) 有权
    有效的WLAN和蓝牙（R）

    公开(公告)号：JP2012257286A

    公开(公告)日：2012-12-27

    申请号：JP2012166948

    申请日：2012-07-27

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： MEYLAN ARNAUD ,  YANG MIN

    IPC: H04W16/14 ,  H04W52/02 ,  H04W88/06

    CPC classification number: H04W16/14 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/0238 ,  H04W88/06 ,  Y02D70/00 ,  Y02D70/12 ,  Y02D70/122 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/23

    Abstract: PROBLEM TO BE SOLVED: To provide techniques to enable efficient operation of co-located WLAN and Bluetooth(R) devices.SOLUTION: A station (e.g., a cellular phone or a laptop computer) determines the activity of a Bluetooth device and ascertains idle periods of the Bluetooth device. The station communicates with an access point in a WLAN during the idle periods of the Bluetooth device. The station operates in a power save mode with the access point, sends a poll frame to the access point during an idle period, and retrieves the buffered data from the access point during the idle period. The station also operates in an unscheduled APSD mode with the access point, sends a trigger frame to the access point during an idle period to start a service period, and exchanges data with the access point during the service period.

    Abstract translation: 要解决的问题：提供技术来实现共同部署的WLAN和蓝牙（R）设备的高效运行。

    解决方案：站（例如，蜂窝电话或膝上型计算机）确定蓝牙设备的活动并确定蓝牙设备的空闲时段。 在蓝牙设备的空闲期间，站与WLAN中的接入点进行通信。 该站在具有接入点的省电模式下操作，在空闲时段期间向接入点发送轮询帧，并且在空闲时段期间从接入点检索缓冲的数据。 该站还以接入点的非调度APSD模式工作，在空闲期间向接入点发送触发帧，开始服务周期，并在服务期间与接入点交换数据。 版权所有（C）2013，JPO＆INPIT

    Optimizing in-order delivery of data packets during wireless communication handover
    23.
    发明专利
    Optimizing in-order delivery of data packets during wireless communication handover 审中-公开
    在无线通信切换期间优化数据包的交付

    公开(公告)号：JP2012257264A

    公开(公告)日：2012-12-27

    申请号：JP2012157377

    申请日：2012-07-13

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： MEYLAN ARNAUD

    IPC: H04W36/02

    CPC classification number: H04W36/023 ,  H04L1/1841 ,  H04L47/34 ,  H04L69/321 ,  H04W36/02

    Abstract: PROBLEM TO BE SOLVED: To process service data units (SDU) in order during communication handover in wireless networks.SOLUTION: For mobile devices using re-transmission schemes, SDUs can be processed in order by indicating to a target base station a last SDU received in order before handing off communication to the target base station. Additionally, SDUs received subsequent to one or more non-acknowledged SDUs can be forwarded to the target base station. Utilizing this information, the target base station determines one or more SDUs the mobile device is preparing to re-transmit and waits for transmission of the determined SDUs before processing subsequently received SDUs. Also, a timer can be utilized to end a period of waiting for the SDUs.

    Abstract translation: 要解决的问题：在无线网络中的通信切换期间按顺序处理业务数据单元（SDU）。 解决方案：对于使用重传方案的移动设备，可以通过向目标基站指示在切换与目标基站的通信之前顺序接收的最后一个SDU，来顺序地处理SDU。 此外，在一个或多个未确认的SDU之后接收的SDU可以被转发到目标基站。 利用该信息，目标基站在处理随后的接收的SDU之前，确定移动设备正在准备重发的一个或多个SDU，并等待所确定的SDU的传输。 此外，可以使用定时器来结束等待SDU的周期。 版权所有（C）2013，JPO＆INPIT

    Method and system for providing beamforming feedback in wireless communication systems
    24.
    发明专利
    Method and system for providing beamforming feedback in wireless communication systems 有权
    在无线通信系统中提供波束形成反馈的方法和系统

    公开(公告)号：JP2012199943A

    公开(公告)日：2012-10-18

    申请号：JP2012107726

    申请日：2012-05-09

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： KETCHUM JOHN W ,  NANDA SANJIV ,  MEYLAN ARNAUD ,  SHRAVAN K SURINENI

    IPC: H04B7/04 ,  H04J99/00 ,  H04W16/28 ,  H04W84/12

    CPC classification number: H04B7/0643 ,  H04B7/0421 ,  H04B7/0617 ,  H04B7/0634 ,  H04B7/0636 ,  H04L25/0204 ,  H04L25/0228 ,  H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03802

    Abstract: PROBLEM TO BE SOLVED: To provide techniques to support beamforming for stations in a wireless network.SOLUTION: A station supports beamforming with implicit or explicit feedback by responding to training request though sending a sounding frame, and by responding to request for explicit feedback. In one explicit beamforming embodiment, the station sends a first frame with an explicit feedback request and also sends a Null Data Packet (NDP) having at least one training field but no data field. The station receives a second frame with explicit feedback, which may be derived based on the NDP. The station derives steering information based on explicit feedback and then sends a steered frame with beamforming based on the steering information. The station performs implicit beamforming using NDP for sounding.

    Abstract translation: 要解决的问题：提供技术来支持无线网络中的站的波束成形。 解决方案：站通过响应训练请求而支持隐式或显式反馈，支持波束成形，通过发送探测帧，并响应显式反馈请求。 在一个明确的波束成形实施例中，站发送具有显式反馈请求的第一帧，并且还发送具有至少一个训练场但不包括数据字段的空数据分组（NDP）。 该站接收到具有显式反馈的第二帧，其可以基于NDP导出。 车站基于显式反馈导出转向信息，然后基于转向信息发送具有波束成形的转向帧。 该站使用NDP进行声音的隐式波束成形。 版权所有（C）2013，JPO＆INPIT

    Open loop rate control for tdd communication system
    26.
    发明专利
    Open loop rate control for tdd communication system 有权
    用于TDD通信系统的开环速率控制

    公开(公告)号：JP2010213290A

    公开(公告)日：2010-09-24

    申请号：JP2010086977

    申请日：2010-04-05

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： WALTON JAY RODNEY ,  SURINENI SHRAVAN K ,  MEYLAN ARNAUD ,  NANDA SANJIV

    IPC: H04W28/18 ,  H04J99/00 ,  H04W28/06 ,  H04W28/22

    CPC classification number: H04L1/0015 ,  H04B17/309 ,  H04L1/0002 ,  H04L1/1607 ,  Y02D50/10

    Abstract: PROBLEM TO BE SOLVED: To provide techniques for performing open-loop rate control in a TDD communication system. SOLUTION: In the open-loop rate control, the channel quality of a first link (B, A) is estimated based on a transmission received via the first link (B, A). The channel quality of a second link (A, B) is estimated based on the estimated channel quality of the first link (B, A) and an asymmetric parameter. A sub-band for a data transmission via the second link (A, B) is selected based on the estimated channel quality of the second link (A, B). The estimated channel quality for each link may be given by a set of SNR estimates for a set of transmission channels on that link. The asymmetric parameter may be determined based on (1) the capabilities (e.g., transmission power, receiver noise figure, and number of antennas) of the transmitting and receiving stations or (2) received SNRs for the first link (B, A) and second link (A, B). COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题：提供在TDD通信系统中执行开环速率控制的技术。 解决方案：在开环速率控制中，基于经由第一链路（B，A）接收的传输来估计第一链路（B，A）的信道质量。 基于第一链路（B，A）的估计信道质量和非对称参数来估计第二链路（A，B）的信道质量。 基于第二链路（A，B）的估计信道质量来选择经由第二链路（A，B）进行数据传输的子带。 每个链路的估计信道质量可以由对该链路上的一组传输信道的一组SNR估计给出。 可以基于（1）发射和接收站的能力（例如，发射功率，接收机噪声系数和天线数量）来确定非对称参数，或者（2）第一链路（B，A）和 第二连接（A，B）。 版权所有（C）2010，JPO＆INPIT

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