发明名称 |
Framing for an adaptive modulation communication system |
摘要 |
A system and method for mapping a combined frequency division duplexing (FDD) Time Division Multiplexing (TDM)/Time Division Multiple Access (TDMA) downlink subframe for use with half-duplex and full-duplex terminals in a communication system. Embodiments of the downlink subframe vary Forward Error Correction (FEC) types for a given modulation scheme as well as support the implementation of a smart antennae at a base station in the communication system. Embodiments of the system are also used in a TDD communication system to support the implementation of smart antennae. A scheduling algorithm allows TDM and TDMA portions of a downlink to efficiently co-exist in the same downlink subframe and simultaneously support full and half-duplex terminals. The algorithm further allows the TDM of multiple terminals in a TDMA burst to minimize the number of map entries in a downlink map. The algorithm limits the number of downlink map entries to not exceed 2n+1, where n is the number of DL PHY modes (modulation/FEC combinations) employed by the communication system.
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申请公布号 |
US8165046(B2) |
申请公布日期 |
2012.04.24 |
申请号 |
US20080035549 |
申请日期 |
2008.02.22 |
申请人 |
STANWOOD KENNETH L.;KLEIN ISRAEL JAY;LIN GEORGE;CHEN AN;WI-LAN, INC. |
发明人 |
STANWOOD KENNETH L.;KLEIN ISRAEL JAY;LIN GEORGE;CHEN AN |
分类号 |
H04J3/00;H04B7/26;H04L1/00;H04W72/14 |
主分类号 |
H04J3/00 |
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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