Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2006-06-27
2006-06-27
Milord, Marceau (Department: 2682)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S101000, C455S277200, C455S561000, C455S575700, C455S272000, C375S347000, C375S267000, C375S299000, C370S334000, C370S336000
Reexamination Certificate
active
07069050
ABSTRACT:
A transmitter of a base station includes a data serial-to-parallel converter, M modulators, M beam formers, and transmission antennas. The data serial-to-parallel converter converts transmission data into M sequences. Each modulator modulates the transmission data. Each beam former weights the modulation signal to form directional beams. The transmission antennas narrow the beams and transmit the modulation signals in parallel (MIMO transmission). In a mobile station, a receiver has reception antennas for receiving data transmitted in parallel and an MIMO demodulator for demodulating the data.
REFERENCES:
patent: 5903238 (1999-05-01), Sokat et al.
patent: 5914946 (1999-06-01), Avidor et al.
patent: 5940769 (1999-08-01), Nakajima et al.
patent: 5966670 (1999-10-01), Keskitalo et al.
patent: 6073032 (2000-06-01), Keskitalo et al.
patent: 6091788 (2000-07-01), Keskitalo et al.
patent: 6128476 (2000-10-01), Fujita
patent: 6144652 (2000-11-01), Avidor et al.
patent: 6144711 (2000-11-01), Raleigh et al.
Huang, H., et al., “Achieving high data rates on the UMTS downlink shared channel using multiple antennas”, 3G Mobile Communication Technologies, pp. 373-377 (Mar. 2001).
N. Ishii, et al., “Performance Comparison between Beamforming and MIMO in W-CDMA HSDPA” Proceedings of the 2002 IEICE General Conference, p. 561 (Mar. 2002).
English translation of Chinese Office Action dated Apr. 1, 2005.
Milord Marceau
NEC Corporation
Whitham Curtis Christofferson & Cook, P.C.
LandOfFree
Antenna transmission and reception system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Antenna transmission and reception system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Antenna transmission and reception system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3648085