Telecommunications – Transmitter and receiver at separate stations – Having measuring – testing – or monitoring of system or part
Reexamination Certificate
2006-06-27
2006-06-27
Craver, Charles (Department: 2682)
Telecommunications
Transmitter and receiver at separate stations
Having measuring, testing, or monitoring of system or part
C455S114200, C455S562100, C455S226300, C455S273000, C455S278100
Reexamination Certificate
active
07068977
ABSTRACT:
A method and system is disclosed for reducing interference in a wireless communication system utilizing an antenna array. The antenna array uses one or more signal channels for communicating with one or more mobile terminals. First, at least one channel is assigned as an empty channel in which no desired signal is carried so as to provide a representation of all relevant interference. Since the spatial characteristics of the empty channel and the regular signal channels should be very similar, the spatial signature of the signal channels is analyzed based on the interference received on the empty channel and the desired signals received on at least one signal channel. The analyzed spatial signature is then used for reducing the interference on all signal channels.
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Xu Guanghan
Yang Weidong
Craver Charles
Navini Networks, Inc.
Preston Gates & Ellis LLP
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