Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2008-07-22
2008-07-22
Anderson, Matthew (Department: 2618)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S562100, C455S272000, C455S273000, C455S101000, C455S137000
Reexamination Certificate
active
07403798
ABSTRACT:
Antennas in an entire radio base station system are divided into two antenna groups so that each group has antennas in the number that allows convergence of reception directivity using a reference signal length. Reception weight vector calculators (112, 212) corresponding to respective antenna groups perform adaptive array processings, and corresponding array outputs are provided to a maximum ratio combining circuit (18). The maximum ratio combining circuit (18) performs maximum ratio combining of the array outputs corresponding to two antenna groups, based on weight information output from the reception weight vector calculators (112, 212).
REFERENCES:
patent: 5752173 (1998-05-01), Tsujimoto
patent: 6061553 (2000-05-01), Matsuoka et al.
patent: 6347234 (2002-02-01), Scherzer
patent: 6624784 (2003-09-01), Yamaguchi
patent: 6665286 (2003-12-01), Maruta et al.
patent: 6714584 (2004-03-01), Ishii et al.
patent: 6771988 (2004-08-01), Matsuoka et al.
patent: 0 984 507 (2000-03-01), None
patent: 1 014 485 (2000-06-01), None
patent: 1 041 670 (2000-10-01), None
patent: 2000-082982 (2000-03-01), None
patent: 2000-201012 (2000-07-01), None
patent: WO 00/26988 (2000-05-01), None
Nobuyoshi Kikuma, Kagaku Gijutsu Shuppan, pp. 35-49, Nov. 1998, “Adaptive Signal Processing by Array Antenna” together with Partial English Translation.
Hiroshi Suzuki, et al. IEICE Transactions, B-II, vol. J76-B-II, No. 4, pp. 189-201, Apr. 1993, “Dynamic Performance Analysis on RLS Adaptive Equalizers for Mobile Radio Transmission” with Partial English Translation.
Anderson Matthew
Huang Wen W
Sanyo Electric Co,. Ltd.
Westerman, Hattori, Daniels & Adrian , LLP.
LandOfFree
Wireless base system, and directivity control method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wireless base system, and directivity control method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wireless base system, and directivity control method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2763512