发明名称 |
Scattered pilot pattern and channel estimation method for MIMO-OFDM systems |
摘要 |
Methods and apparatus are provided for inserting data symbols and pilot symbols in an OFDM (orthogonal frequency division multiplexing) transmission resource utilizing frequency hopping patterns for the data symbols and/or the pilot symbols. Data symbols and pilot symbols are allocated for down link (base station to mobile station) and up link (mobile station to base station) transmission resources in a two-dimensional time-frequency pattern. For each antenna of a MIMO-OFDM (multiple input multiple output OFDM) communication system, pilot symbols are inserted in a scattered pattern in time-frequency and data symbols are inserted in an identical frequency-hopping pattern in time-frequency as that of other antennas.
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申请公布号 |
US8325836(B2) |
申请公布日期 |
2012.12.04 |
申请号 |
US201113108443 |
申请日期 |
2011.05.16 |
申请人 |
TONG WEN;ZHU PEIYING;MA JIANGLEI;JIA MING;RESEARCH IN MOTION LIMITED |
发明人 |
TONG WEN;ZHU PEIYING;MA JIANGLEI;JIA MING |
分类号 |
H04K1/10;H04B7/04;H04L1/06;H04L5/02;H04L25/02;H04L27/26;H04L27/28 |
主分类号 |
H04K1/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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