发明名称 |
Method and apparatus for adaptive data allocation in a multicarrier communication system |
摘要 |
<p>An xDSL modem having an adaptively adjustable guard band comprising a finite number of spaced-apart frequency bins between the upstream and downstream frequencies. The guard band is adjusted by selecting one from among a plurality of filters belonging to a filter bank of the receiver circuitry. A weighted loss in data capacity is calculated when each of the candidate filters are used, and the filter which gives the lowest loss in data capacity, subject to certain criteria, is used. The adjustment is made pursuant to noise and signal characteristics measured during start or restart of an xDSL communications session.</p> |
申请公布号 |
EP1143690(A2) |
申请公布日期 |
2001.10.10 |
申请号 |
EP20010302279 |
申请日期 |
2001.03.13 |
申请人 |
VIRATA CORPORATION |
发明人 |
STISCIA, JAMES J.;CHEN, RAYMOND |
分类号 |
H04L27/26;(IPC1-7):H04M11/06;H04L5/00 |
主分类号 |
H04L27/26 |
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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