Composite channel quality estimation techniques for wireless receivers
    5.
    发明授权
    Composite channel quality estimation techniques for wireless receivers 失效
    无线接收机的复合信道质量估计技术

    公开(公告)号:US07016330B2

    公开(公告)日:2006-03-21

    申请号:US10703265

    申请日:2003-11-07

    IPC分类号: H04Q7/00 H04B17/00

    摘要: Enhanced methods for channel quality estimation utilize soft symbol output data to generate a statistic or set of statistics that are representative of BER for each of a plurality of bursts corresponding to a composite channel. The statistics are mapped into a BER estimate to generate individual BER estimates for each of the plurality of bursts. The individual BER estimates are combined to obtain an estimate of the BER for the entire composite channel. Alternatively, the BER estimate for the composite channel may then be mapped into a quality estimate for the composite channel using a monotonic function.

    摘要翻译: 用于信道质量估计的增强方法利用软符号输出数据来产生对应于复合信道的多个突发中的每个的代表BER的统计量或统计量集合。 统计量被映射到BER估计中以针对多个突发中的每一个生成单个BER估计。 单个BER估计被组合以获得整个复合信道的BER估计。 或者,然后可以使用单调函数将复合信道的BER估计映射到复合信道的质量估计。

    Physical layer network coding using forward error correction codes
    8.
    发明授权
    Physical layer network coding using forward error correction codes 有权
    使用前向纠错码的物理层网络编码

    公开(公告)号:US09088351B2

    公开(公告)日:2015-07-21

    申请号:US14005730

    申请日:2012-03-16

    摘要: Two network nodes may exchange messages through a relay using physical-layer network coding combined with forward error correction coding (FEC). The relay determines a prime field order based on the channel condition and communicates the field order to the network nodes. Each network node encodes an outgoing message with linear codes over a field such as finite field of the field order, and transmits a signal carrying the encoded outgoing message. The relay receives a composite signal carrying the summation of the messages from the two network nodes. The relay decodes the composite signal and extracts a composite message with linear codes over finite field of field order, and broadcasts a signal carrying the composite message. Each network node receives the signal from the relay and extracts the message intended for it using linear subtraction over finite field of field order.

    摘要翻译: 两个网络节点可以使用结合前向纠错编码(FEC)的物理层网络编码通过中继交换消息。 继电器基于信道条件确定主场顺序,并将该场顺序传送到网络节点。 每个网络节点通过诸如场顺序的有限域的字段编码具有线性码的输出消息,并且发送携带编码的输出消息的信号。 继电器接收携带来自两个网络节点的消息总和的复合信号。 中继解码复合信号,并通过有限场场顺序提取具有线性码的复合消息,并广播携带复合消息的信号。 每个网络节点接收来自中继器的信号,并通过有限场域顺序使用线性减法提取预期的消息。

    Method and apparatus for a two-way relaying scheme with physical layer network coding
    10.
    发明授权
    Method and apparatus for a two-way relaying scheme with physical layer network coding 有权
    用于具有物理层网络编码的双向中继方案的方法和装置

    公开(公告)号:US08908624B2

    公开(公告)日:2014-12-09

    申请号:US13503258

    申请日:2010-10-22

    摘要: A two-way relay wireless communication method and device may combine multiple bit steams, for one source node and two target nodes, and broadcasting a network coded combined bit sequence to reduce the number of time slots for transmission. A first device may receive a signal from the source node and a target node simultaneously in a time slot. The first device may receive subsequent signals from the source node and multiple target nodes simultaneously in successive time slots. Hierarchical modulation may be applied to the received signals. The first device may decode the received signals and generate a plurality of intermediate bit sequences (IBS)s for a broadcast transmission. The generated IBSs may be grouped according to a channel condition. A second device may be configured to receive the broadcast transmission and decode a portion of the broadcast transmission that is intended for the second device.

    摘要翻译: 双向中继无线通信方法和装置可以对一个源节点和两个目标节点组合多个比特流,并且广播网络编码的组合比特序列以减少用于传输的时隙数量。 第一设备可以在时隙中同时从源节点和目标节点接收信号。 第一设备可以在连续的时隙中同时从源节点和多个目标节点接收后续信号。 可以对接收的信号应用分层调制。 第一设备可以对接收的信号进行解码,并生成用于广播传输的多个中间比特序列(IBS)。 所生成的IBS可以根据信道条件进行分组。 第二设备可以被配置为接收广播传输并解码旨在用于第二设备的广播传输的一部分。