Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2006-11-28
2006-11-28
Milord, Marceau (Department: 2618)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S524000, C455S063400, C455S067130, C455S103000, C455S501000, C455S452100, C455S450000, C370S280000, C370S347000, C370S348000, C348S460000, C348S461000, C348S464000, C375S130000, C375S146000, C375S147000
Reexamination Certificate
active
07142888
ABSTRACT:
The object of the present invention is to improve the accuracy of channel estimation and increase downlink capacity when a base station transmits an individual channel using directional beams. The base station10according to the present invention comprises an individual channel transmitter15configured to transmit an individual channel into which pilot symbols are inserted; and an individual channel format creator14configured to create a format of the individual channel. The individual channel format creator14changes between a format of an individual channel which is to be transmitted using directional beams and a format of an individual channel which is to be transmitted using non-directional beams.
REFERENCES:
patent: 5673260 (1997-09-01), Umeda et al.
patent: 5926747 (1999-07-01), Komara et al.
patent: 5953325 (1999-09-01), Willars
patent: 6011787 (2000-01-01), Nakano et al.
patent: 6108323 (2000-08-01), Gray
patent: 6181941 (2001-01-01), McCarthy
patent: 6330460 (2001-12-01), Wong et al.
patent: 6345046 (2002-02-01), Tanaka
patent: 6385181 (2002-05-01), Tsutsui et al.
patent: 6504515 (2003-01-01), Holt et al.
patent: 6542484 (2003-04-01), Ovesjo et al.
patent: 6694155 (2004-02-01), Chin et al.
patent: 6784838 (2004-08-01), Howell
patent: 6804216 (2004-10-01), Kuwahara et al.
patent: 6882681 (2005-04-01), Sano
patent: 1242894 (2000-01-01), None
patent: 0 674 451 (1995-09-01), None
S. Tanaka, et al., IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol. E80-A, No. 12, pp. 2445-2454, “Pilot Symbol-Assisted Decision-Directed Coherent Adaptive Array Diversity for DS-CDMA Mobile Radio Reverse Link”, Dec. 1997.
H. Taoka, et al., IEEE Wireless Communications, pp. 34-41, “Adaptive Antenna Array Transmit Diversity in FDD Forward Link for W-CDMA and Broadband Packet Wireless Access”, Apr. 2002.
Nakamura Takehiro
Okawa Koichi
Tanaka Shinya
LandOfFree
Radio communication method, base station and mobile station does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Radio communication method, base station and mobile station, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radio communication method, base station and mobile station will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3635800