Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2007-08-28
2007-08-28
Nguyen, Lee (Department: 2618)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S342000
Reexamination Certificate
active
10473877
ABSTRACT:
A spread code to be allocated to transmission data is changed at a previous transmitting time and a next transmission time. For example, at transmission of the first packet (first transmission), symbols “1” to “4” are spread by spread code #0, while at transmission of the second packet (retransmission), symbols “1” to “4 ” are spread by spread code #1. As a result, since despread signals of the respective symbols obtained by a plurality of reception times on a receiver side are synthesized, it is possible to eliminate a reception symbol having an extremely small reception level, so that reception quality can be improved.
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Matsushita Electric - Industrial Co., Ltd.
Nguyen Lee
Stevens Davis Miller & Mosher LLP
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