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    Logical channel mapping for increased utilization of transmission resources
    1.
    发明授权
    Logical channel mapping for increased utilization of transmission resources 有权
    用于增加传输资源利用率的逻辑信道映射

    公开(公告)号：US09036567B2

    公开(公告)日：2015-05-19

    申请号：US12699596

    申请日：2010-02-03

    申请人： Raghuraman Krishnamoorthi ,  Gordon Kent Walker ,  Fuyun Ling

    发明人： Raghuraman Krishnamoorthi ,  Gordon Kent Walker ,  Fuyun Ling

    IPC分类号： H04W72/04 ,  H04N21/63 ,  H04N21/2383 ,  H04N21/2385 ,  H04N21/438

    CPC分类号： H04N21/631 ,  H04N21/2383 ,  H04N21/2385 ,  H04N21/4382

    摘要： Methods, systems, and apparatus, including computer programs encoded on computer readable storage media, for increasing utilization of transmission resources by mapping data from a block of layered codec data onto a plurality of logical channels for transmission of the mapped data. Resource utilization may also be improved by mapping data from at least two layers of a block of layered of codec data onto a logical channel that supports only a single data channel carried by a transmit modulation scheme.

    摘要翻译： 方法，系统和装置，包括在计算机可读存储介质上编码的计算机程序，用于通过将来自分层编解码器数据块的数据映射到用于传输映射数据的多个逻辑信道上的数据来增加传输资源的利用。 也可以通过将来自编解码器数据分层的至少两层的数据映射到仅支持由发送调制方案承载的单个数据信道的逻辑信道上来提高资源利用。

    Frequency division multiplexing of multiple data streams in a wireless multi-carrier communication system
    2.
    发明授权
    Frequency division multiplexing of multiple data streams in a wireless multi-carrier communication system 有权
    无线多载波通信系统中多个数据流的频分复用

    公开(公告)号：US08526412B2

    公开(公告)日：2013-09-03

    申请号：US10968614

    申请日：2004-10-18

    申请人： Rajiv Vijayan ,  Gordon Kent Walker ,  Raghuraman Krishnamoorthi ,  Murali R. Chari

    发明人： Rajiv Vijayan ,  Gordon Kent Walker ,  Raghuraman Krishnamoorthi ,  Murali R. Chari

    IPC分类号： H04B7/288

    CPC分类号： H04L27/0008 ,  H04L5/0007 ,  H04L5/0041 ,  H04L5/0044 ,  H04L5/0051 ,  H04L5/0064 ,  H04L25/022 ,  H04L25/0226 ,  H04L25/0228 ,  H04L27/2604 ,  H04L27/2605 ,  H04L27/2647 ,  Y02D70/10

    摘要： Techniques for multiplexing multiple data streams using frequency division multiplexing (FDM) in an OFDM system are described. M disjoint “interlaces” are formed with U usable subbands. Each interlace is a different set of S subbands, where U=M·S. The subbands for each interlace are interlaced with the subbands for each of the other M−1 interlaces. M slots may be defined for each symbol period and assigned slot indices 1 through M. The slot indices may be mapped to interlaces such that (1) frequency diversity is achieved for each slot index and (2) the interlaces used for pilot transmission have varying distances to the interlaces used for each slot index, which improves channel estimation performance. Each data stream may be processed as data packets of a fixed size, and different numbers of slots may be used for each data packet depending on the coding and modulation scheme used for the data packet.

    摘要翻译： 描述了在OFDM系统中使用频分复用（FDM）来复用多个数据流的技术。 M个不相交的“交错”与U个可用的子带形成。 每个交错是不同的S个子带集合，其中U = M·S。 用于每个交错的子带与用于其它M-1交错的每个子带进行隔行扫描。 可以为每个符号周期和分配的时隙索引1到M定义M个时隙。时隙索引可以被映射到交织，使得（1）针对每个时隙索引实现频率分集，以及（2）用于导频传输的交织具有不同的 到每个时隙索引用于交织的距离，这提高了信道估计性能。 每个数据流可以被处理为固定大小的数据分组，并且根据用于数据分组的编码和调制方案，每个数据分组可以使用不同数量的时隙。

    Channel handoff methods in wireless broadcast systems
    3.
    发明授权
    Channel handoff methods in wireless broadcast systems 有权
    无线广播系统中的信道切换方法

    公开(公告)号：US09554319B2

    公开(公告)日：2017-01-24

    申请号：US11828333

    申请日：2007-07-25

    申请人： Linbo Li ,  Ashok Mantravadi ,  Fuyun Ling ,  Raghuraman Krishnamoorthi

    发明人： Linbo Li ,  Ashok Mantravadi ,  Fuyun Ling ,  Raghuraman Krishnamoorthi

    IPC分类号： H04Q7/20 ,  H04W36/28 ,  H04W36/30 ,  H04W72/08

    CPC分类号： H04W36/28 ,  H04W36/30 ,  H04W72/085

    摘要： Systems and methodologies are described that facilitate monitoring RF channels in a wireless communication environment to determine whether one or more channels comprise a forward-link-only (FLO) signal. A receiver can receive a first RF channel with a FLO signal and can monitor other RF channels for FLO signals. Upon a determination that a monitored RF channel comprises a FLO signal, the receiver can switch between the first RF channel and the monitored RF channel, employing information on current MLC decoding status, to facilitate providing seamless reception of the FLO signal, which can be superframe synchronized between RF channels. FLO signal detection can be performed using one or more of a wide-area identification channel energy detection protocol and a wide-area overhead information symbol decoding error detection protocol.

    摘要翻译： 描述了便于在无线通信环境中监视RF信道以确定一个或多个信道是包括仅前向链路（FLO）信号的系统和方法。 接收机可以接收具有FLO信号的第一RF信道，并且可以监视FLO信号的其他RF信道。 在确定被监视的RF信道包括FLO信号之后，接收机可以使用关于当前MLC解码状态的信息在第一RF信道和被监控的RF信道之间切换，以便于提供FLO信号的无缝接收，其可以是超帧 在RF信道之间同步。 可以使用广域识别信道能量检测协议和广域开销信息符号解码错误检测协议中的一个或多个来执行FLO信号检测。

    CHANNEL MONITORING METHODS IN A WIRELESS BROADCAST SYSTEM
    9.
    发明申请
    CHANNEL MONITORING METHODS IN A WIRELESS BROADCAST SYSTEM 审中-公开
    无线广播系统中的信道监测方法

    公开(公告)号：US20080020751A1

    公开(公告)日：2008-01-24

    申请号：US11828336

    申请日：2007-07-25

    申请人： Linbo Li ,  Ashok Mantravadi ,  Fuyun Ling ,  Raghuraman Krishnamoorthi

    发明人： Linbo Li ,  Ashok Mantravadi ,  Fuyun Ling ,  Raghuraman Krishnamoorthi

    IPC分类号： H04Q7/20

    CPC分类号： H04W72/005

    摘要： Systems and methodologies are described that facilitate monitoring RF channels in a wireless communication environment to determine whether one or more channels comprise a forward-link-only (FLO) signal. A receiver can receive a first RF channel with a FLO signal and can monitor other RF channels for FLO signals. Upon a determination that a monitored RF channel comprises a FLO signal, the receiver can switch between the first RF channel and the monitored RF channel. FLO signal detection can be performed using one or more of a wide-area identification channel energy detection protocol and a wide-area overhead information symbol decoding error detection protocol.

    摘要翻译： 描述了便于在无线通信环境中监视RF信道以确定一个或多个信道是包括仅前向链路（FLO）信号的系统和方法。 接收机可以接收具有FLO信号的第一RF信道，并且可以监视FLO信号的其他RF信道。 在确定被监视的RF信道包括FLO信号之后，接收机可以在第一RF信道和所监视的RF信道之间切换。 可以使用广域识别信道能量检测协议和广域开销信息符号解码错误检测协议中的一个或多个来执行FLO信号检测。