Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2005-11-21
2009-11-24
Ghayour, Mohammad H (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C370S334000, C370S441000, C455S456500, C455S525000, C455S560000, C455S561000, C706S024000
Reexamination Certificate
active
07623563
ABSTRACT:
An apparatus and method for detecting a space-time multi-user signal are disclosed. The apparatus includes: an RF/IF processing unit for converting received signals through an array antenna into digital baseband signals; a splitting unit for dividing the digital baseband signals into data signals and reference signals; a estimating unit for estimating a delay time information and a channel impulse response; a vector generating unit for receiving the reference signals and the delay time information of to thereby generate a beamforming weight vector; a matrix generating unit for receiving the channel impulse response and the beamforming weight vector to there by generate a system matrix; a filtering unit for receiving the data signals and the system matrix to multiply the system matrix to data per each antenna; a antenna combining unit for combining signals outputted from the filtering unit; and an interference cancelling unit for cancelling an interference signal.
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Bang Seung-Chan
Jwa Hye-Kyung
Kim Young-Hoon
Nam Sang-Woo
Park Kyung
Blakely & Sokoloff, Taylor & Zafman
Dsouza Adolf
Electronics and Telecommunications Research Institute
Ghayour Mohammad H
LandOfFree
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