Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2006-06-27
2006-06-27
Patel, Ajit (Department: 2664)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S347000, C370S503000, C375S231000, C375S347000, C455S303000, C455S450000
Reexamination Certificate
active
07068631
ABSTRACT:
The present invention employs training sequence hopping in a cellular communications system to permit tight frequency reuse by minimizing or avoiding co-channel interference and/or other signal degrading phenomena. During a first portion of a transmission, e.g., a first burst, a first training sequence is used. During a second portion of that transmission, e.g., a second burst, a second different training sequence is used. Different training sequences are used for different portions of the transmission according to a predetermined training sequence hopping pattern and with a predetermined number of training sequences. The portion duration can extend for the length of a burst, for more than one burst, for a speech frame, or for some other time period.
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Eriksson Mathias
Lindheimer Christofer
Molnö Johan
Tidestav Claes
Nixon & Vanderhye P.C.
Patel Ajit
Shah Chirag
Telefonaktiebolaget LM Ericsson (publ)
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