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Method and apparatus for efficient MIMO reception with reduced complexity

机译:用于以降低的复杂度进行有效的MIMO接收的方法和装置

摘要

A receiver (200) for receiving for receiving encoded data transmitted simultaneously as a plurality of M different sequences of transmitted symbols from different transmit antennas using a plurality of m modulation levels, where M and m are integers and each of the transmitted symbols represents a plurality of bits of the encoded data, comprises a demodulator (210) arranged to provide N received symbol combinations by receiving at a plurality of N receive antennas (202, 204), where N is an integer, the plurality of M different sequences of transmitted symbols, wherein each received symbol combination comprises M simultaneously received ones of the transmitted symbols. An equaliser (230) is arranged to generate from the N received symbol combinations M pre-processed signals by performing interference cancellation, in which interference cancellation a different symbol of the respective received symbol combination is a wanted signal and the other symbols of the respective received symbol combination are interfering signals. The equaliser (230) is also arranged to generate from each of the M pre-processed signals a list of up to m initial candidate symbol combinations by, for each of the up to m initial candidate symbol combinations, selecting a first initial symbol indicative of a different one of the m modulation levels and selecting M-1 further initial symbols. The equaliser (230) is further arranged to generate from the lists of initial candidate symbol combinations an initial estimate of the transmitted symbols. A decoder (260) is arranged to decode bits represented by the initial estimate of the transmitted symbols.
机译:接收器(200),用于接收使用多个m个调制电平从不同的发射天线作为多个M个不同的发射符号序列同时发射的编码数据,其中M和m是整数,每个发射的符号表示多个编码数据的比特,包括解调器(210),该解调器(210)被配置为通过在多个N个接收天线(202、204)处接收来提供N个接收符号组合,其中N是整数,多个M个不同的发射符号序列,其中每个接收到的符号组合包括M个同时接收到的发射符号。均衡器(230)被布置为通过执行干扰消除从N个接收符号组合中生成M个预处理信号,其中,干扰消除中各个接收符号组合的不同符号是有用信号,以及各个接收符号的其他符号。符号组合是干扰信号。均衡器(230)还被布置为通过针对多达m个初始候选符号组合中的每一个,选择表示以下项的第一初始符号,从M个预处理信号中的每一个生成多达m个初始候选符号组合的列表。在m个调制电平中选择一个不同的值,并选择M-1个其他初始符号。均衡器(230)还被布置为从初始候选符号组合的列表中生成所发送的符号的初始估计。解码器(260)被安排为解码由所传输符号的初始估计表示的比特。

著录项

  • 公开/公告号EP2680520B1

    专利类型

  • 公开/公告日2015-11-18

    原文格式PDF

  • 申请/专利权人 TELEFONAKTIEBOLAGET L M ERICSSON (PUBL);

    申请/专利号EP20120174386

  • 发明设计人 PAKER ÖZGÜN;

    申请日2012-06-29

  • 分类号H04L25/03;H04L25/02;

  • 国家 EP

  • 入库时间 2022-08-21 14:50:10

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