发明名称 Space-time coded OFDM system for MMDS applications
摘要 A communications system includes a base station that is configured to transmit a signal that is modulated according to a predetermined modulation scheme and an orthogonal frequency division multiplexing scheme, wherein the signal is encoded using space-frequency coding. The base station includes a plurality of multiple-input multiple-output (MIMO) transceivers. The system includes a terminal that is configured to receive the modulated signal. The above arrangement is particularly applicable to providing multichannel multipoint distribution services (MMDS) over a radio communications system.
申请公布号 US7342875(B2) 申请公布日期 2008.03.11
申请号 US20010012066 申请日期 2001.11.05
申请人 THE DIRECTV GROUP, INC. 发明人 HAMMONS, JR. A. ROGER;EL-GAMAL HESHAM;LEE LIN-NAN;KAY STAN;MACDONALD ANDREW;ROZMARYN JACK;BEIDAS BASSEL
分类号 G01R31/08;H04L1/06;H04L27/26 主分类号 G01R31/08
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