Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2002-03-27
2008-08-05
Jung, Min (Department: 2616)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S342000, C370S350000, C455S502000
Reexamination Certificate
active
07408903
ABSTRACT:
The invention discloses a selecting method of synchronization codes for a mobile communication synchronization system. The method selects binary codes with zero correlation window as the synchronization codes for a mobile communication synchronization system, i.e. selects binary codes whose periodic autocorrelation and periodic cross-correlation have the zero correlation window, or whose aperiodic autocorrelation and aperiodic cross-correlation have the zero correlation window; and for former transmitting the synchronization codes uses cyclic and continuous mode and for later a guard period is added to each synchronization code for transmitting. A width of the zero correlation window is determined to be greater than time delay spread of a multipath signal. Using the method, the selected synchronization codes can implement more accurate synchronization.
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Huawei Technologies Co. Ltd.
Jung Min
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