发明名称 |
Two-dimensional channel bonding in a hybrid CDMA/FDMA fixed wireless access system to provide finely variable rate channels |
摘要 |
A communications system employs the use of both synchronous CDMA and FDMA to provide a variable bandwidth waveform with multiple bonded transmitters and receivers that are agile in both frequency and PN code to permit a variable bandwidth and variable rate multiple access system. In a first aspect the teachings provide the use of both CDMA and FDMA together to enable an improved concentration efficiency by making a larger pool of bandwidth available to each user. In a second aspect these teachings enable channel bonding across both code space and frequency space, thus making the system capable of operating within a variable (not necessarily contiguous) bandwidth and at a finely variable rate.
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申请公布号 |
US7190683(B2) |
申请公布日期 |
2007.03.13 |
申请号 |
US20010829360 |
申请日期 |
2001.04.09 |
申请人 |
L-3 COMMUNICATIONS CORPORATION |
发明人 |
GIALLORENZI THOMAS R.;HALL ERIC K.;ERTEL RICHARD B.;STEPHENSON PHILIP L.;GRIFFIN DAN M.;BUTTERFIELD LEE A. |
分类号 |
H04B7/216;H04B7/155;H04B7/208;H04B7/26;H04J1/00;H04J13/00;H04L27/00 |
主分类号 |
H04B7/216 |
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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