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A correlation energy detector detects a magnitude of a correlation between a first signal series (Ii, Qi) described by I-Q orthogonal components and a predetermined second signal series (HJ). The correlation energy detector includes a correlation computing section for computing correlation values (I

A correlation energy detector detects a magnitude of a correlation between a first signal series (Ii, Qi) described by I-Q orthogonal components and a predetermined second signal series (HJ). The correlation energy detector includes a correlation computing section for computing correlation values (Iij,Qij) between the first signal series (Ii, Qi) and the predetermined second signal series (HJ), and a root computing section for computing { (Iij2+Qij2)} as a root value of a sum of squares of the correlation values (Iij,Qij) obtained from the correlation computing section.

대표청구항 ▼

A correlation energy detector detects a magnitude of a correlation between a first signal series (Ii, Qi) described by I-Q orthogonal components and a predetermined second signal series (HJ). The correlation energy detector includes a correlation computing section for computing correlation values (I

A correlation energy detector detects a magnitude of a correlation between a first signal series (Ii, Qi) described by I-Q orthogonal components and a predetermined second signal series (HJ). The correlation energy detector includes a correlation computing section for computing correlation values (Iij,Qij) between the first signal series (Ii, Qi) and the predetermined second signal series (HJ), and a root computing section for computing { (Iij2+Qij2)} as a root value of a sum of squares of the correlation values (Iij,Qij) obtained from the correlation computing section. , 19930900, Hall; US-5253268, 19931000, Omura et al.; US-5253347, 19931000, Bagnoli et al.; US-5257283, 19931000, Gilhousen et al.; US-5258940, 19931100, Coker et al.; US-5260967, 19931100, Schilling; US-5262974, 19931100, Hausman et al.; US-5265119, 19931100, Gilhousen et al.; US-5267262, 19931100, Wheatley, III; US-5274474, 19931200, Medina; US-5276684, 19940100, Pearson; US-5283536, 19940200, Wheatley, III; US-5287299, 19940200, Lin; US-5287463, 19940200, Frame et al.; US-5295152, 19940300, Gudmundson et al.; US-5297162, 19940300, Lee et al.; US-5299228, 19940300, Hall; US-5305349, 19940400, Dent; US-5309474, 19940500, Gilhousen et al.; US-5311459, 19940500, D'Luna et al.; US-5321721, 19940600, Yamaura et al., 375/141; US-5327455, 19940700, De Gaudenzi et al.; US-5327467, 19940700, De Gaudenzi et al.; US-5339174, 19940800, Harris; US-5341396, 19940800, Higgins et al.; US-5343335, 19940800, Hara; US-5345598, 19940900, Dent; US-5347536, 19940900, Meehan; US-5349606, 19940900, Lovell et al.; US-5351134, 19940900, Yaguchi et al.; US-5353302, 19941000, Bi; US-5353352, 19941000, Dent et al.; US-5355453, 19941000, Row et al.; US-5361276, 19941100, Subramanian; US-5363377, 19941100, Sharpe; US-5365585, 19941100, Puhl et al.; US-5367533, 19941100, Schilling; US-5373502, 19941200, Turban; US-5377183, 19941200, Dent; US-5379242, 19950100, Rose et al.; US-5392287, 19950200, Tiedemann, Jr. et al.; US-5396516, 19950300, Padovani et al.; US-5396539, 19950300, Slekys et al.; US-5398243, 19950300, Aguilhon et al.; US-5404376, 19950400, Dent; US-5406559, 19950400, Edem et al.; US-5414728, 19950500, Zehavi; US-5414729, 19950500, Fenton; US-5414732, 19950500, Kaufmann; US-5416797, 19950500, Gilhousen et al.; US-5418624, 19950500, Ahmed; US-5420864, 19950500, Dahlin et al.; US-5420896, 19950500, Schilling; US-5430724, 19950700, Fall et al.; US-5430760, 19950700, Dent; US-5440597, 19950800, Chung et al.; US-5442662, 19950800, Fukasawa et al.; US-5446683, 19950800, Mullen et al.; US-5446756, 19950800, Mallinckrodt, 375/130; US-5448600, 19950900, Lucas; US-5459759, 19951000, Schilling; US-5483549, 19960100, Weinberg et al.; US-5487089, 19960100, Misaizu et al.; US-5488629, 19960100, Takahashi et al.; US-5509126, 19960400, Oprescu et al.; US-5519736, 19960500, Ishida; US-5528593, 19960600, English et al.; US-5544156, 19960800, Teder et al.; US-5548613, 19960800, Kaku et al.; US-5550811, 19960800, Kaku et al.; US-5559790, 19960900, Yano et al.; US-5561669, 19961000, Lenney et al.; US-5563912, 19961000, Yasunaga et al.; US-5594718, 19970100, Weaver, Jr. et al.; US-5596570, 19970100, Soliman; US-5619524, 19970400, Ling et al.; US-5654980, 19970800, Latva-aho et al.; US-5657343, 19970800, Schilling; US-5673286, 19970900, Lomp; US-5692008, 19971100, Van Nee; US-5712869, 19980100, Lee et al.; US-5745484, 19980400, Scott; US-5841768, 19981100, Ozluturk et al.; US-5872810, 19990200, Philips et al.; US-5875400, 19990200, Madhavapeddy et al.; US-5878329, 19990300, Mallinckrodt; US-5881368, 19990300, Grob et al.; US-5898665, 19990400, Sawahashi et al.; US-5940382, 19990800, Haim; US-5953346, 19990900, Luddy; US-5991332, 19991100, Lomp et al.; US-6018528, 20000100, Gitlin et al.; US-6072787, 20000600, Hamalainen et al.; US-6088335, 20000700, I et al.; US-6122292, 20000900, Watanabe et al.; US-6229843, 20010500, Lomp et al. hitectures for the down-link in a DS-CDMA mobile system;" IEEE; pp. 51-55; Sep. 1994. Patent Abstracts of Japan, vol. 015, No. 003 (E-1019), Jan. 7, 1991 & JP 02 256331 A (Sharp Corp.), Oct. 17, 1990, see abstract. Raymond W. Nettleton, "Spectral Efficiency in Cellular Land-Mobile Communications: A Spread-Spectrum Approach," UMI Dissertation Information Service, (1978), 204 pp. Hossein Al Avi, "Power Control and Interference Management in a Spread-Spectrum Cellular Mobile Radio System," UMI Dissertation Information Services, (1984), 129pp. "Code Division Multiple Access (CDMA)", Franz Josef Hagmanns, Volker Hespelt, 8273 ANT Nachrichtentechnische Berichte (1993) Aug., No. 10, Backnang, DE, pp. 64-71. "CDMA and ATM-zwei Technologien, ein Ziel", 2323 Telcom Report (Siemens) 18 (1995) Maerz/Apr., No. 2, Munchen, DE, pp. 60-63. Zhao Liu et al., "SIR-Based Call Admission Control for DS-CDMA Cellular Systems", IEEE Journal on Selected Areas in Communications, US, IEEE Inc. New York, vol. 12, No. 4, May 1, 1994, pp. 638-644.