Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2007-12-04
2007-12-04
Anderson, Matthew (Department: 2618)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S423000, C455S063400, C342S368000, C342S371000
Reexamination Certificate
active
10221185
ABSTRACT:
A connection request signal issued from a terminal (PS2) corresponding to a new call and received by an array antenna (2) is supplied to an adaptive array (14) and a parameter estimating unit (15). The parameter estimating unit (15) lowers a send power of a terminal (PS1) corresponding to an existing call by a predetermined level when it is detected from an output of the adaptive array (14) and a signal supplied from the antenna (2) that the connection request signal is received via a C-channel.
REFERENCES:
patent: 6564036 (2003-05-01), Kasapi
patent: 6836673 (2004-12-01), Trott
patent: 2000-82987 (2000-03-01), None
patent: 2001-148656 (2001-05-01), None
patent: WO 99/40689 (1999-08-01), None
B. Widrow et al.; Proceedings of the IEEE, vol. 55, No. 12, pp. 2143-2159, Dec. 1967. Discussed in the spec.
S. P. Applebaum; IEEE Transactions on Antennas and Propagation, vol. AP-24, No. 5, pp. 585-598, Sep. 1976. Discussed in the spec.
B. Widrow et al.; Adaptive Signal Processing; Chapter 6, pp. 99-116, 1985. Discussed in the spec.
R. A. Monzingo et al.; Introduction to Adaptive Arrays, A Wiley-Interscience Publication, Chapter 3, pp. 78-105, 1980. Discussed in the spec.
J. E. Hudson, IEE Electromagnetic Wave Series II, Chapter 3, pp. 59-154.
R. T. Compton, Jr., Adaptive Antennas, The Ohio State Univ., Prentice Hall, vol. 2, pp. 6-11, 1988. Discussed in the spec.
E. Nicolau et al.; Adaptive Arrays, ELSEVIER, Chapter 8, pp. 122-163, 1989. Discussed in the spec.
Association of Radio Industries and Businesses—RCR STD-28, Dec. 1993.
D. Tanaka et al.; Blocking Rate Performance of SDMA with a 3-element Adaptive Array; The Institute of Electronics; English abstract, 1998.
Anderson Matthew
Pan Yuwen
Sanyo Electric Co,. Ltd.
Westerman, Hattori, Daniels & Adrian , LLP.
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