Pulse or digital communications – Equalizers – Automatic
Reexamination Certificate
2008-04-22
2008-04-22
Phu, Phuong (Department: 2611)
Pulse or digital communications
Equalizers
Automatic
C375S231000, C375S296000, C375S285000
Reexamination Certificate
active
10903353
ABSTRACT:
A method and system for interactive channel equalization uses channel status information included in data packets. The system includes a first station adapted to transmit a first data packet including a channel status information segment over a radio communication channel as a first signal. A second station in the system includes a static pre-equalizer and an adaptive equalizer. The second station is adapted to receive the first signal and adaptively equalize the first signal using the adaptive equalizer and the channel status information to create a post hoc status estimate of the channel. The second station is further adapted to transmit a second data packet over the channel as a second signal, where the second signal is pre-equalized by the pre-equalizer using the post hoc status estimate of the channel. The method and system thus enable parameters of the channel equalization to be adjusted in real-time in response to varying channel conditions.
REFERENCES:
patent: 6219378 (2001-04-01), Wu
patent: 6252914 (2001-06-01), Yamamoto
patent: 6336041 (2002-01-01), Vatalaro et al.
patent: 6516025 (2003-02-01), Warke et al.
Huang Xiaojing
Lowe Darryn
Motorola Inc.
Phu Phuong
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