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    Method and system for re-acquiring signals of a wireless broadcast network
    1.
    发明申请
    Method and system for re-acquiring signals of a wireless broadcast network 有权
    用于重新获取无线广播网络信号的方法和系统

    公开(公告)号：US20060252420A1

    公开(公告)日：2006-11-09

    申请号：US11398202

    申请日：2006-04-04

    申请人： Ashok Mantravadi ,  Dhinakar Radhakrishnan ,  Murali Chari

    发明人： Ashok Mantravadi ,  Dhinakar Radhakrishnan ,  Murali Chari

    IPC分类号： H04Q7/20

    CPC分类号： H04H20/12 ,  H04H20/71 ,  H04H40/18 ,  H04W4/06

    摘要： The disclosure is directed to a mobile communication device that determines when a performance disruption indicates a loss of synchronization with a broadcast signal and, in response, initiates reacquisition of the signal. Reacquisition techniques may include identifying and decoding only select portions of header information in the broadcast signal. Reacquisition may also be initiated in response to one or more deterministic triggers and during a test mode of operation.

    摘要翻译： 本公开涉及一种移动通信设备，其确定性能中断何时表示与广播信号的同步丢失，并且响应地启动信号的重新获取。 重新获取技术可以包括仅在广播信号中识别和解码标题信息的选择部分。 还可以响应于一个或多个确定性触发而在测试操作模式期间启动重新获取。

    Method and system for re-acquiring signals of a wireless broadcast network
    2.
    发明授权
    Method and system for re-acquiring signals of a wireless broadcast network 有权
    用于重新获取无线广播网络信号的方法和系统

    公开(公告)号：US08280368B2

    公开(公告)日：2012-10-02

    申请号：US11398202

    申请日：2006-04-04

    申请人： Ashok Mantravadi ,  Dhinakar Radhakrishnan ,  Murali Ramaswamy Chari

    发明人： Ashok Mantravadi ,  Dhinakar Radhakrishnan ,  Murali Ramaswamy Chari

    IPC分类号： H04W24/00

    CPC分类号： H04H20/12 ,  H04H20/71 ,  H04H40/18 ,  H04W4/06

    摘要： The disclosure is directed to a mobile communication device that determines when a performance disruption indicates a loss of synchronization with a broadcast signal and, in response, initiates reacquisition of the signal. Reacquisition techniques may include identifying and decoding only select portions of header information in the broadcast signal. Reacquisition may also be initiated in response to one or more deterministic triggers and during a test mode of operation.

    摘要翻译： 本公开涉及一种移动通信设备，其确定性能中断何时表示与广播信号的同步丢失，并且响应地启动信号的重新获取。 重新获取技术可以包括仅在广播信号中识别和解码标题信息的选择部分。 还可以响应于一个或多个确定性触发而在测试操作模式期间启动重新获取。

    Selective network switching in a wireless broadcast network
    3.
    发明申请
    Selective network switching in a wireless broadcast network 有权
    无线广播网络中的选择性网络切换

    公开(公告)号：US20060227718A1

    公开(公告)日：2006-10-12

    申请号：US11343380

    申请日：2006-01-30

    申请人： Michael Wang ,  Ashok Mantravadi ,  Murali Chari

    发明人： Michael Wang ,  Ashok Mantravadi ,  Murali Chari

    IPC分类号： H04J1/16 ,  H04Q7/00

    CPC分类号： H04B1/3805 ,  H04H20/26 ,  H04H40/18

    摘要： The disclosure is directed to a mobile communication device that may receive wireless broadcast signals from a number of different base stations or transmitters. As the location of the device moves relative to the transmitters, one transmitter will likely be identified as the transmitter broadcast the strongest, or highest quality, signal. When that determination is made, the user of the mobile device is presented the opportunity to switch to receiving that transmitters signal. Based on the user's reply, the device may remain with the current transmitter, even though it does not have the strongest signal, or the device may be configured to acquire and start receiving the new transmitter's signal. The measuring of the quality of a transmitter's signal may be based on a composite score that combines a number of individual measurements made over a predetermined period of time.

    摘要翻译： 本公开针对可从多个不同基站或发射机接收无线广播信号的移动通信设备。 随着设备的位置相对于发射机移动，一个发射机可能被识别为发射机广播最强或最高质量的信号。 当进行该确定时，向移动设备的用户呈现切换到接收该发射机信号的机会。 基于用户的答复，即使设备没有最强的信号，设备仍然可以保持当前的发射机，或者设备可能被配置为获取和开始接收新的发射机的信号。 发射机信号的质量的测量可以基于组合在预定时间段内进行的多个单独测量的综合得分。

    Method and apparatus to facilitate support for multi-radio coexistence
    5.
    发明授权
    Method and apparatus to facilitate support for multi-radio coexistence 有权
    便于支持多无线电共存的方法和装置

    公开(公告)号：US09578649B2

    公开(公告)日：2017-02-21

    申请号：US13351739

    申请日：2012-01-17

    申请人： Pranav Dayal ,  Tamer Adel Kadous ,  Rajat Prakash ,  Ashok Mantravadi ,  Ahmed K. Sadek

    发明人： Pranav Dayal ,  Tamer Adel Kadous ,  Rajat Prakash ,  Ashok Mantravadi ,  Ahmed K. Sadek

    IPC分类号： H04L12/28 ,  H04W72/12 ,  H04W88/06

    CPC分类号： H04W72/1215 ,  H04W88/06

    摘要： To improve performance in devices capable of communication using multiple radio access technologies (RATs), a gap pattern may be constructed in which a first RAT is quieted during certain times to allow for a second RAT to operate without interference. Gap patterns may be constructed based on timeline constraints, such as grant scheduling and HARQ performance, or based on desired performance levels of one or more of the RATs. Gap patterns may be selected by a user equipment or base station. Gap patterns may be selected to protect information in certain subframes. Potential gap patterns may be assigned weights indicating their desirability.

    摘要翻译： 为了提高能够使用多个无线电接入技术（RAT）进行通信的设备的性能，可以构建间隙模式，其中第一RAT在特定时间内被安静，以允许第二RAT在没有干扰的情况下运行。 间隙模式可以基于诸如授权调度和HARQ性能之类的时间线约束，或者基于一个或多个RAT的期望的性能水平来构建。 间隙模式可以由用户设备或基站选择。 可以选择间隙模式来保护某些子帧中的信息。 潜在的差距模式可以分配权重，指示其可取性。

    Multi-radio coexistence of a broadband radio and a broadcast stream receiver that receives broadcast stream data
    7.
    发明授权
    Multi-radio coexistence of a broadband radio and a broadcast stream receiver that receives broadcast stream data 有权
    宽带无线电的多无线电共存和接收广播流数据的广播流接收机

    公开(公告)号：US09113488B2

    公开(公告)日：2015-08-18

    申请号：US13207745

    申请日：2011-08-11

    申请人： Seyfullah Halit Oguz ,  Tamer Adel Kadous ,  Ashok Mantravadi ,  Prasanna Kannan

    发明人： Seyfullah Halit Oguz ,  Tamer Adel Kadous ,  Ashok Mantravadi ,  Prasanna Kannan

    IPC分类号： H04W4/00 ,  H04W72/12 ,  H04W16/14

    CPC分类号： H04W72/1215 ,  H04W16/14

    摘要： A multi-radio device, such as User Equipment (UE), may experience coexistence issues among various ones of its constituent radio devices that operate at the same time. Various aspects of the disclosure provide techniques to mitigate coexistence issues in multi-radio devices, where significant in-device coexistence problems can exist. In particular, a method for coexistence of multi-radio devices is described. The method includes identifying, at an upper layer of a multi-radio UE, a type of incoming broadcast stream data. The method further includes determining a coexistence policy for operation of communication resources within the multi-radio UE based on the type of the incoming broadcast stream data. The method also includes arbitrating, at a lower layer of the multi-radio UE, between the communication resources based on the coexistence policy.

    摘要翻译： 诸如用户设备（UE）的多无线电设备可能在其同时操作的其组成无线电设备的各种设备之间经历共存问题。 本公开的各个方面提供了减少多无线电设备中共存问题的技术，其中存在显着的设备内共存问题。 特别地，描述了一种用于多无线电设备共存的方法。 该方法包括在多无线电UE的上层识别输入的广播流数据的类型。 该方法还包括基于输入的广播流数据的类型来确定用于在多无线电UE内的通信资源的操作的共存策略。 该方法还包括在多无线电UE的较低层处，基于共存策略在通信资源之间进行仲裁。

    Methods and apparatus for timing synchronization based on transitional pilot symbols
    8.
    发明授权
    Methods and apparatus for timing synchronization based on transitional pilot symbols 有权
    基于过渡导频符号的定时同步的方法和装置

    公开(公告)号：US09008198B2

    公开(公告)日：2015-04-14

    申请号：US11765428

    申请日：2007-06-19

    申请人： Bojan Vrcelj ,  Krishna Kiran Mukkavilli ,  Ashok Mantravadi ,  Raghuraman Krishnamoorthi

    发明人： Bojan Vrcelj ,  Krishna Kiran Mukkavilli ,  Ashok Mantravadi ,  Raghuraman Krishnamoorthi

    IPC分类号： H04K1/10 ,  H04L27/28 ,  H04L27/26 ,  H04L5/00 ,  H04L7/08 ,  H04L25/02

    CPC分类号： H04L27/2662 ,  H04L5/0048 ,  H04L7/08 ,  H04L25/0216 ,  H04L25/023 ,  H04L27/2613 ,  H04L27/2675 ,  H04L27/2695

    摘要： Methods and apparatus for timing synchronization based on transitional pilot symbols. In an aspect, a method is provided for time tracking synchronization in an OFDM system. The method includes receiving at least one TDM pilot symbol comprising a plurality of modulated sub-carriers that are configured to provide a channel estimate having a length that extends up to a duration of an FFT used for data transmission. The method also includes determining one or both of an instantaneous and averaged channel estimates from the plurality of modulated sub-carriers, and calculating a timing offset based on one or both of the channel estimates. An apparatus includes a receiver configured to receive the at least one TDM pilot symbol, a channel estimator configured to determine the instantaneous and averaged channel estimates, and a time synchronizer configured to calculate a timing offset based on the channel estimates.

    摘要翻译： 基于过渡导频符号的定时同步的方法和装置。 在一方面，提供了一种用于OFDM系统中的时间跟踪同步的方法。 该方法包括：接收至少一个TDM导频符号，该TDM导频符号包括多个经调制的子载波，其被配置为提供具有延伸到用于数据传输的FFT的持续时间的长度的信道估计。 该方法还包括确定来自多个调制子载波的瞬时和平均信道估计中的一个或两个，以及基于信道估计中的一个或两个来计算定时偏移。 一种装置包括被配置为接收所述至少一个TDM导频符号的接收机，被配置为确定瞬时和平均信道估计的信道估计器，以及被配置为基于信道估计来计算定时偏移的时间同步器。

    Mitigating impact of power imbalance on remote data rate in wireless local area network
    9.
    发明授权
    Mitigating impact of power imbalance on remote data rate in wireless local area network 有权
    电力不平衡对无线局域网远程数据速率的影响

    公开(公告)号：US08879445B2

    公开(公告)日：2014-11-04

    申请号：US13547696

    申请日：2012-07-12

    申请人： Ahmed K. Sadek ,  Ashok Mantravadi ,  Tamer Adel Kadous

    发明人： Ahmed K. Sadek ,  Ashok Mantravadi ,  Tamer Adel Kadous

    IPC分类号： H04B7/00 ,  H04L1/16 ,  H04W52/32 ,  H04W52/24 ,  H04L1/00 ,  H04L1/18

    CPC分类号： H04W52/325 ,  H04L1/0001 ,  H04L1/1692 ,  H04L1/1854 ,  H04W52/244

    摘要： A method for mitigating the impact of a power imbalance on a remote data rate in a wireless local area network (WLAN) includes transmitting a wireless local area network (WLAN) acknowledgement (ACK) packet at a first transmit power level to a remote device. The method further includes transmitting, to the remote device, a WLAN data packet at a second transmit power level that is lower than the first transmit power level of the WLAN ACK packet. Another method for mitigating the impact of a power imbalance on a remote data rate in a wireless local area network (WLAN) may include selecting a wireless local area network (WLAN) acknowledgement (ACK) packet transmit rate independent from a rate at which a WLAN data packet is received. This method further includes transmitting, to a remote device, a WLAN ACK packet at the selected WLAN ACK packet transmit rate.

    摘要翻译： 一种用于减轻功率不平衡对无线局域网（WLAN）中的远程数据速率的影响的方法包括以第一发射功率电平向远程设备发送无线局域网（WLAN）确认（ACK）分组。 该方法还包括以低于WLAN ACK分组的第一发射功率电平的第二发射功率电平向远程设备发送WLAN数据分组。 用于减轻功率不平衡对无线局域网（WLAN）中的远程数据速率的影响的另一种方法可以包括：选择无线局域网（WLAN）确认（ACK）分组传输速率，与WLAN的速率无关 接收数据包。 该方法还包括以所选择的WLAN ACK分组传输速率向远程设备发送WLAN ACK分组。