Method and system for forward link beam forming in wireless...

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail

Reexamination Certificate

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Details

C455S025000, C342S368000

Reexamination Certificate

active

07054662

ABSTRACT:
According to one embodiment, an antenna beam pattern is used to send a communication signal to a user. For example, the antenna beam pattern can be formed using adaptive antenna array technology on the forward link of a wireless communication system. A control signal from the user is used to determine a statistic. For example, the control signal can be a power control bit sent by the user on the return link. The statistic can be an average of the power control bit values over a specified time interval. The statistic is used to narrow the antenna beam pattern and direct it toward the user. For example, a dithering algorithm can be used to optimize the antenna beam pattern. After a call is completed, an optimized antenna beam pattern specific to each user can be stored for the next call to make the optimizing process faster and more efficient.

REFERENCES:
patent: 4901307 (1990-02-01), Gilhousen et al.
patent: 5103459 (1992-04-01), Gilhousen et al.
patent: 5634199 (1997-05-01), Gerlach et al.
patent: 5848358 (1998-12-01), Forssen et al.
patent: 5889494 (1999-03-01), Reudink et al.
patent: 6006110 (1999-12-01), Raleigh
patent: RE37218 (2001-06-01), Densmore et al.
patent: 6400335 (2002-06-01), Weaver et al.
patent: 6421005 (2002-07-01), Weaver et al.
patent: 6574211 (2003-06-01), Padovani et al.
patent: 2002/0077111 (2002-06-01), Spaling et al.
patent: 2003/0050071 (2003-03-01), Shurvinton
patent: 2335115 (1999-09-01), None
patent: 98/14024 (1998-04-01), None
patent: 0072465 (2000-11-01), None
S. Yoshimoto, et al. “Research and Development Project for Efficient Use of the Radio Spectrum Through Intelligent Technology,” Sep. 1995, vol. 41, No. 3 (pp. 245-252).
K. Nakamura, et al., “A System of Compensation of Rain Attenuation for Satellite Broadcasting With the Multi-Beam Antenna,” Kagoshima University, ITE Technical Report, Jan. 1997. vol. 21 No. 5 (pp. 15-20).
Y. Hara et al., “Power control Scheme for CDMA Systems with Multibeam Antenna,” Mitsubishi Electric Corporation, Kanagawa (Japan). The Institute of Electronics, Information and Communication Engineers, Technical Report of IEICE, Feb. 1999 (pp. 111-116).

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