Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
Patent
1996-02-22
1999-07-27
Chin, Wellington
Telecommunications
Transmitter and receiver at separate stations
Plural transmitters or receivers
455500, 455524, 455442, 455561, H04Q 720, H04Q 730, H04Q 728
Patent
active
059307226
ABSTRACT:
A digital mobile communication system wherein a master clock of a mobile communication system for offering audio or data service using a code division multiple access (CDMA) is set as a global positioning system (GPS) clock provided in a GPS and the interface and timing between various subsystems using the GPS clock and an exchanger are redesigned to achieve an exact timing schedule, and a timing design method between various subsystems. In order to maintain frequency and time synchronization between various subsystems in a CDMA system using an exchanger therefor, the respective subsystems are designed based on the clock supplied from a GPS, a hardware interconnection between the systems is designed based on the GPS clock to attain an exact timing, thereby achieving a fast and exact frame transmission.
REFERENCES:
patent: 5195091 (1993-03-01), Farwell et al.
patent: 5343498 (1994-08-01), Toy et al.
patent: 5550992 (1996-08-01), Hashimoto
patent: 5574983 (1996-11-01), Douzono et al.
patent: 5640386 (1997-06-01), Wiedeman
patent: 5664006 (1997-09-01), Monte et al.
Cho Byong Jin
Han Jin Soo
Chin Wellington
Ferguson Keith
Hyundai Electronics Industries Co,. Ltd.
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