发明名称 |
COMMUNICATION SYSTEM WITH MULTICARRIER TELEPHONY TRANSPORT |
摘要 |
The communication system includes a hybrid fiber/coax distribution network. A head end provides for downstream transmission of telephony and control data in a first frequency bandwidth over the hybrid fiber/coax distribution network and reception of upstream telephony and control data in a second frequency bandwidth over the hybrid fiber/coax distribution network. The head end includes a head end multicarrier modem for modulating downstream telephony information on a plurality of orthogonal carriers in the first frequency bandwidth and demodulating upstream telephony information modulated on a plurality of orthogonal carriers in the second frequency bandwidth. The system includes service units, operatively connected to the hybrid fiber/coax distribution network for upstream transmission of telephony and control data and for receipt of the downstream control data and telephony. Also provided is a method and apparatus for performing a Fast Fourier Transform (FFT).
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申请公布号 |
CA2757201(C) |
申请公布日期 |
2013.08.27 |
申请号 |
CA19972757201 |
申请日期 |
1997.01.24 |
申请人 |
ADC TELECOMMUNICATIONS, INC. |
发明人 |
GEILE, MICHAEL J.;ROBERTS, HAROLD A. |
分类号 |
H04L27/26;H04J11/00;H04L1/00;H04W76/04 |
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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