发明名称 |
A packet processing relay agent to provide link layer forwarding in one-way cable/wireless/satellite modems |
摘要 |
<p>A method and apparatus for allowing a personal computer to receive data from a computer network such as the Internet via a broadcast channel of a cable or satellite television network, while transmitting data upstream to the computer network via a telephone line. A packet processing relay agent (PPRA) forwards data at the data link layer between a one-way network adapter, such as a cable modem that receives Internet data via a cable network, and a two-way return path adapter, such as a telephone modem that communicates with Internet servers and other users via a telephone network. The system provides compatibility with TCP/IP routing/addressing conventions by forwarding upstream IP packets with a cable modem source address over the telephone modem. The PPRA can enhance functionality by incorporating higher layer functions at the data link layer. <IMAGE></p> |
申请公布号 |
EP0915591(A2) |
申请公布日期 |
1999.05.12 |
申请号 |
EP19980121137 |
申请日期 |
1998.11.10 |
申请人 |
GENERAL INSTRUMENT CORPORATION |
发明人 |
ADRIANO, RICHARD;LALWANEY, POOMIMA;HO SON, YONG |
分类号 |
H04L29/06;H04L12/28;(IPC1-7):H04L12/18 |
主分类号 |
H04L29/06 |
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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