发明名称 Method for frequency division duplex communications
摘要 The high quality PCS communications are enabled in environments where adjacent PCS service bands operate with out-of-band harmonics that would otherwise interfere with the system's operation. The highly bandwidth-efficient communications method combines a form of time division duplex (TDD), frequency division duplex (FDD), time division multiple access (TDMA), orthogonal frequency division multiplexing (OFDM), spatial diversity, and polarization diversity in various unique combinations. The method provides excellent fade resistance. The method enables changing a user's available bandwidth on demand by assigning additional TDMA slots during the user's session.
申请公布号 US7450542(B2) 申请公布日期 2008.11.11
申请号 US20040022048 申请日期 2004.12.22
申请人 AT&T MOBILITY II LLC 发明人 ALAMOUTI SIAVASH;CASAS EDUARDO F.;HIRANO MICHAEL;HOOLE ELLIOTT;JESSE MARY;MICHELSON DAVID G.;POON PATRICK;VEINTIMILLA GREGORY J.;ZHANG HONGLIANG
分类号 H04J99/00;H04B7/08;H04B7/10;H04B7/24;H04B7/26;H04J1/00;H04J3/00;H04J3/06;H04J11/00;H04L1/06;H04L5/02;H04L5/14;H04W16/14;H04W72/04;H04W72/08;H04W74/00;H04W74/04 主分类号 H04J99/00
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