Mobile communication system and inter-bases station synchronzing method
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United States of America Patent
Stats
-
Feb 5, 2002
Grant Date -
Jun 28, 2001
app pub date -
Dec 21, 2000
filing date -
Dec 22, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A plurality of base stations each calculate a distance function value with respect to a mobile station by detecting up signal therefrom in their own receiver (step S15), and transmit the calculated value to a base station controller (step S16). When a base station as reference base station receives, from the mobile station, the difference of timings of base station down signal reception (steps S17 and S18), it transmits the reception timing difference to the controller (step S19). The controller calculates, from data from an in-question base station, the difference of up signal reception timings in the reference and in-question base stations, and reports the difference to other base stations than the reference base station, thus causing down signal transmission timing updating.
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