发明授权
- 专利标题: Transmit diversity using low code rate spatial multiplexing
- 专利标题(中): 使用低码率空间复用的发射分集
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申请号: US12684817申请日: 2010-01-08
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公开(公告)号: US08331478B2公开(公告)日: 2012-12-11
- 发明人: Robert Mark Harrison , Hua Xu , Andrew Mark Earnshaw , Zhijun Cai
- 申请人: Robert Mark Harrison , Hua Xu , Andrew Mark Earnshaw , Zhijun Cai
- 申请人地址: CA Waterloo, Ontario
- 专利权人: Research In Motion Limited
- 当前专利权人: Research In Motion Limited
- 当前专利权人地址: CA Waterloo, Ontario
- 代理机构: Conley Rose, P.C.
- 代理商 J. Robert Brown, Jr.
- 主分类号: H04B7/02
- IPC分类号: H04B7/02
摘要:
A system is provided for transmitting a low code rate spatially multiplexed channel on multiple antennas. The system includes a transmitter and a processor. The processor is configured such that the processor encodes a block of information bits to form channel coded bits, wherein the ratio of the number of channel coded bits to the number of information bits is greater than one; and the processor maps the channel coded bits to modulation symbols, and each channel coded bit is mapped once to a modulation symbol. The transmitter is configured to transmit a first portion of the modulation symbols using a spreading sequence on a first antenna of the multiple antennas and to transmit a second portion of the modulation symbols using the spreading sequence on a second antenna of the multiple antennas.
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