PASS TIMING DETECTING METHOD, PASS TIMING DETECTOR AND ADAPTIVE ARRAY ANTENNA SYSTEM

Title:

PASS TIMING DETECTING METHOD, PASS TIMING DETECTOR AND ADAPTIVE ARRAY ANTENNA SYSTEM

Document Type and Number:

Japanese Patent JP3856126

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To simplify a pass timing detection process to achieve superior detection characteristics.
SOLUTION: A signal is despread over a plurality of chip timings for every antenna. A despread signal series for every antenna is received with a multi- beam to output a signal series for every beam and generate a delayed profile for every beam averaged over a constant period. A plurality of pass timings are detected in a process of selecting high-level chip timings one after another from the delayed profiles of all beams, without selecting those chip timings of less than a minimum selection timing interval centering around already selected chip timings in the following pass timing detection, and without selecting those chip timings of less than a minimum selection timing interval centering around beams of already selected chip timings with beams of less than a minimum selecting beam interval in the following pass timing detection.

Inventors:

Naomasa Yoshida

Application Number:

JP2002146813A

Publication Date:

December 13, 2006

Filing Date:

May 21, 2002

Export Citation:

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Assignee:

NEC

International Classes:

H04B1/707; H04B1/7113; H04B1/7117; H04B1/712; H04B7/08; H04B7/26; H04W16/28; H04W56/00; H04W76/02; (IPC1-7): H04B1/707; H04B7/26; H04Q7/38

Domestic Patent References:

JP2001036451A
JP2000022587A
JP2001308764A

Other References:

Zheng Zhaohui; Pei Aihua; Hu Jiandong;,A RAKE type receiver structure for CDMA mobile communication systems using antenna arrays,Communications, 1996. ICC 96, Conference Record, Converging Technologies for Tomorrow's Applications. 1996 IEEE International Conference on,IEEE,1996年,pp.528-530

Attorney, Agent or Firm:

Yasuo Suzuki
Yasunobu Usuda

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