Code division multiple access mobile communication system

Details Code division multiple access mobile communication system Code division multiple access mobile communication system

2005-04-12

2005-04-12

Pham, Chi (Department: 2663)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S342000

Reexamination Certificate

active

06879571

ABSTRACT:
In a mobile communication system using a code division multiple access (CDMA) method, spreading code detection and frame/slot timing synchronization (cell search) is conducted by using a long code masked symbol. The spreading factor of the long code masked symbol is set to a value lower than spreading factors of other ordinary symbols. As a result, it becomes possible to reduce the circuit scale and power dissipation of the mobile terminal and raise the speed of cell search.

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Translation of The Institute of Electronics, Information and Communication Engineers, Technical Report of IEICE DSP98-116, SAT96-111, RCS96-122 (1997-01).
Higuchi, K. et al, “Rast Cell Search Algorithm in DS-DCMA Mobile Radio Using Long Spreading Codes”, IEEE, 47th, May 4-7, 1997, pp. 1430-1434.
IEEE, K. Higushi et al., “Fast Cell Research Algorithum in DS-CDMA Mobile Radio Using Long Spreading Codes,” May 4, 1997, pp. 1430-1434.

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