Antenna switching for data transmission in a communication system using a plurality of transmission antennas
    42.
    发明授权
    Antenna switching for data transmission in a communication system using a plurality of transmission antennas 有权
    用于使用多个发送天线的通信系统中的数据传输的天线切换

    公开(公告)号:US08774736B2

    公开(公告)日:2014-07-08

    申请号:US12449240

    申请日:2008-01-21

    IPC分类号: H04B1/02

    摘要: A closed-loop antenna switching method, a reference signal allocating method, and a feedback signal transmitting method for the same are disclosed. Namely, by transmitting a reference signal via the plurality of transmitting antennas via the antenna switching for reference signal transmission for each prescribed multiple period of an antenna selection period, efficient antenna index information can be fed back. By setting an antenna switching period to a prescribed multiple of an antenna selection period, it is able to prevent power loss and data decoding performance degradation. And, the present invention includes transmitting a sounding reference signal (SRS) for each band selection period via at least one of the plurality of transmitting antennas and transmitting at least one data demodulation reference signal (DMRS) between the band selection periods via an antenna for not transmitting data by reference signal transmission antenna switching.

    摘要翻译: 公开了一种闭环天线切换方法,参考信号分配方法及其反馈信号发送方法。 即,通过天线选择期间的规定的多个周期,经由用于参考信号发送的天线切换,经由多个发送天线发送参考信号,可以反馈有效的天线索引信息。 通过将天线切换周期设定为规定的天线选择周期的倍数,能够防止功率损耗和数据解码性能下降。 并且,本发明包括经由多个发送天线中的至少一个发送用于每个频带选择周期的探测参考信号(SRS),并且经由天线发送在频带选择周期之间的至少一个数据解调参考信号(DMRS),用于 不通过参考信号发送天线切换发送数据。

    METHOD AND APPARATUS FOR TURBO ENCODING
    47.
    发明申请
    METHOD AND APPARATUS FOR TURBO ENCODING 有权
    用于涡轮编码的方法和装置

    公开(公告)号:US20100199145A1

    公开(公告)日:2010-08-05

    申请号:US12377841

    申请日:2007-08-16

    IPC分类号: H03M13/27 G06F11/10

    摘要: An apparatus for encoding an information bit stream using turbo code is provided. The apparatus includes a temporary bit generator for creating a temporary bit stream, an interleaver for independently receiving the information bit stream and the temporary bit stream, a first constituent encoder for independently receiving the information bit stream and the temporary bit stream and generating a first parity bit stream and a second constituent encoder for receiving an output of the interleaver and generating a second parity bit stream. Performance of a turbo code can be enhanced without changing a code rate by making a decoded bit stream longer.

    摘要翻译: 提供了一种使用turbo码对信息比特流进行编码的装置。 该装置包括用于创建临时比特流的临时比特发生器,用于独立地接收信息比特流和临时比特流的交织器,用于独立地接收信息比特流和临时比特流并产生第一奇偶校验的第一组合编码器 以及第二组成编码器,用于接收交织器的输出并产生第二奇偶校验位流。 可以通过使解码比特流更长而不改变码率来增强turbo码的性能。