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    System and method for obtaining a message type identifier through an in-band modem
    13.
    发明授权
    System and method for obtaining a message type identifier through an in-band modem 有权
    通过带内调制解调器获取消息类型标识符的系统和方法

    公开(公告)号：US08364482B2

    公开(公告)日：2013-01-29

    申请号：US12825087

    申请日：2010-06-28

    申请人： Christian Sgraja ,  Christoph A Joetten ,  Marc W Werner ,  Christian Pietsch

    发明人： Christian Sgraja ,  Christoph A Joetten ,  Marc W Werner ,  Christian Pietsch

    IPC分类号： G10L11/02

    CPC分类号： H04L7/042 ,  G10L19/00 ,  G10L19/0019 ,  H04J3/0611 ,  H04L5/1415 ,  H04L5/1423 ,  H04L5/1453 ,  H04L7/027 ,  H04L25/03834 ,  H04L25/4902

    摘要： A system and method is provided for obtaining a message type identifier embedded in a vocoder packet via a speech codec (in-band) such as found in a wireless communication network. The vocoder packet is received and decoded. The decoded vocoder packet is filtered until a synchronization signal is detected, with the filtering comprising correlating the decoded vocoder packet with a predetermined sequence to generate the synchronization signal. The polarity of the synchronization signal is determined, and the message type identifier is derived based on the polarity of the detected synchronization signal. A first polarity identifies a first message type, and a second polarity identifies a second message type.

    摘要翻译： 提供了一种系统和方法，用于经由诸如在无线通信网络中找到的语音编解码器（带内））来获得嵌入在声码器分组中的消息类型标识符。 声码器包被接收和解码。 解码的声码器包被过滤直到检测到同步信号，滤波包括将解码的声码器包与预定的序列进行相关，以产生同步信号。 确定同步信号的极性，并且基于检测到的同步信号的极性导出消息类型标识符。 第一极性识别第一消息类型，第二极性识别第二消息类型。

    DATA TRANSMISSION AND RECEPTION WITH HARQ AND NETWORK CODING
    17.
    发明申请
    DATA TRANSMISSION AND RECEPTION WITH HARQ AND NETWORK CODING 审中-公开
    数据传输和接收HARQ和网络编码

    公开(公告)号：US20120314655A1

    公开(公告)日：2012-12-13

    申请号：US13493828

    申请日：2012-06-11

    申请人： FENG XUE ,  Stefan Brueck ,  Siddhartha Mallik ,  Kiran K. Somasundaram ,  Christian Pietsch

    发明人： FENG XUE ,  Stefan Brueck ,  Siddhartha Mallik ,  Kiran K. Somasundaram ,  Christian Pietsch

    IPC分类号： H04W40/00

    CPC分类号： H04L1/1819 ,  H04L1/0076 ,  H04L1/1845 ,  H04L1/1887 ,  H04L25/067 ,  H04L2001/0093

    摘要： Techniques for transmitting and receiving data with hybrid automatic retransmission (HARQ) and network coding via block operation are disclosed. In one design, a transmitter transmits a first block of packets to multiple receivers and receives ACK/NAK feedback for the first block of packets from the receivers. The transmitter identifies candidate packets for network coding based on the ACK/NAK feedback. A pool of candidate packets changes over time as more ACK/NAK feedback for transmitted packets is received from the receivers. The transmitter generates at least one network-coded packet based on the candidate packets. Each network-coded packet may be generated by channel coding each of at least two packets and combining the at least two packets after channel coding. The transmitter transmits another block of packets to the receivers. This block includes the at least one network-coded packet and may also include pending packets and/or new packets.

    摘要翻译： 公开了利用混合自动重传（HARQ）和通过块操作的网络编码来发送和接收数据的技术。 在一种设计中，发射机将多个分组的第一块发送到多个接收机，并且从接收机接收第一个分组块的ACK / NAK反馈。 发射机基于ACK / NAK反馈识别用于网络编码的候选分组。 候选分组池随着时间的推移而改变，因为从接收机接收到更多的发送分组的ACK / NAK反馈。 发射机基于候选分组生成至少一个网络编码分组。 可以通过对至少两个分组中的每一个进行信道编码来生成每个网络编码分组，并且在信道编码之后组合至少两个分组。 发射机向接收机发送另一个数据包。 该块包括至少一个网络编码分组，并且还可以包括未决分组和/或新分组。

    TRANSMISSION SCHEMES FOR RELAY
    18.
    发明申请
    TRANSMISSION SCHEMES FOR RELAY 审中-公开
    传输方案继电器

    公开(公告)号：US20120300680A1

    公开(公告)日：2012-11-29

    申请号：US13480368

    申请日：2012-05-24

    申请人： Christian Pietsch ,  Stefan Brueck

    发明人： Christian Pietsch ,  Stefan Brueck

    IPC分类号： H04W88/04

    CPC分类号： H04B7/15557 ,  H04B7/15585 ,  H04L1/0077 ,  H04L1/0606 ,  H04L1/0668 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/0256 ,  H04L2001/0097

    摘要： Techniques for processing and forwarding transmissions by a relay are disclosed. In one aspect, an orthogonal distributed space-time frequency code (DSTFC) scheme that supports full-duplex relay operation and mitigates self-interference is disclosed. With the orthogonal DSTFC scheme, a source node transmits a same modulation symbol on two subcarriers in one symbol period. The relay obtains two received symbols from the two subcarriers and generates two output symbols based on these received symbols such that the output symbols and the modulation symbol are orthogonal at the relay and a destination node. In another aspect, a distributed Alamouti scheme is disclosed in which the source node transmits two modulation symbols on two subcarriers in each of two consecutive symbol periods. The relay obtains two received symbols from the two subcarriers in one symbol period and generates two output symbols based on the received symbols and in accordance with an Alamouti code.

    摘要翻译： 公开了用于处理和转发由继电器传输的技术。 在一方面，公开了一种支持全双工中继操作并减轻自干扰的正交分布式空时频率码（DSTFC）方案。 使用正交DSTFC方案，源节点在一个符号周期中在两个子载波上发送相同的调制符号。 继电器从两个子载波中获得两个接收到的符号，并且基于这些接收的符号产生两个输出符号，使得输出符号和调制符号在中继站和目的地节点处是正交的。 在另一方面，公开了一种分布式Alamouti方案，其中源节点在两个连续符号周期中的每一个中在两个子载波上发送两个调制符号。 继电器在一个符号周期内从两个子载波中获得两个接收符号，并根据接收的符号并根据Alamouti码产生两个输出符号。

    Methods and systems for allocating resources in a network with optical and coaxial components
    20.
    发明授权
    Methods and systems for allocating resources in a network with optical and coaxial components 有权
    用于在具有光学和同轴组件的网络中分配资源的方法和系统

    公开(公告)号：US08997165B2

    公开(公告)日：2015-03-31

    申请号：US13609198

    申请日：2012-09-10

    申请人： Andrea Garavaglia ,  Juan Montojo ,  Christian Pietsch ,  Stephen J. Shellhammer ,  Nicola Varanese

    发明人： Andrea Garavaglia ,  Juan Montojo ,  Christian Pietsch ,  Stephen J. Shellhammer ,  Nicola Varanese

    IPC分类号： H04N7/173 ,  H04N21/61

    CPC分类号： H04N21/61 ,  H04Q11/0067 ,  H04Q11/0071 ,  H04Q2011/0064 ,  H04Q2011/0079

    摘要： A media converter is to be coupled to an optical line terminal via an optical link and to a plurality of coax network units via coax links in a cable plant. The media converter includes an optical physical-layer device to receive and transmit optical signals via the optical link and a coax physical-layer device to receive and transmit electrical signals via the coax links. The media converter also includes an implementation of an optical-coax convergence layer to schedule transmissions of electrical signals from the plurality of coax network units by allocating coax resources among the plurality of coax network units in accordance with resource allocation for the optical link.

    摘要翻译： 媒体转换器将经由光链路耦合到光线路终端，并通过电缆设备中的同轴电缆连接到多个同轴电缆网络单元。 媒体转换器包括用于经由光链路接收和发送光信号的光物理层设备和同轴电缆物理层设备，以经由同轴电缆链路接收和发送电信号。 媒体转换器还包括光同轴会聚层的实现，以根据光链路的资源分配来分配多个同轴电缆网络单元之间的同轴电缆资源来调度来自多个同轴电缆网络单元的电信号的传输。