发明名称 |
Method of, and apparatus for data communication. |
摘要 |
<p>A method of data communication, particularly for long data messages, is disclosed. The data code words of a message are arranged in segments, each with its own header, and are assigned message and segment identification. A receiver reconstructs the data message segment by segment and in the non-group call situation transmits an acknowledgement after the receipt of a segment. The receiver comprises a resettable timer which is set on the receipt of an acceptable segment and runs for a pre-determined duration. If another segment is received within the duration of the timer and has the same identification as said acceptable segment, then it is treated as a retransmission. Efficiency of the data communication method can be increased by retransmitted data code words being included with new data code words in a segment rather than being transmitted in a separate segment requiring its own header. Optionally an efficient form of bit interleaving may be used. </p> |
申请公布号 |
EP0213682(A2) |
申请公布日期 |
1987.03.11 |
申请号 |
EP19860201492 |
申请日期 |
1986.09.01 |
申请人 |
PHILIPS ELECTRONIC AND ASSOCIATED INDUSTRIES LIMITED;N.V. PHILIPS' GLOEILAMPENFABRIEKEN |
发明人 |
MABEY, PETER JOHN PYE TELECOMMUNICATIONS LTD;MERVART, ROMAN PYE TELECOMMUNICATIONS LTD |
分类号 |
H04L9/00;H04L1/00;H04L1/16;H04L1/18;H04L9/32;(IPC1-7):H04L1/16 |
主分类号 |
H04L9/00 |
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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