Method of transmitting timing advance data to a mobile station i

Details Method of transmitting timing advance data to a mobile station i Method of transmitting timing advance data to a mobile station i

1993-09-14

1995-12-26

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

379 60, 455 332, 3701001, H04J 316

Patent

active

054794099

ABSTRACT:
A method and system for transmitting timing advance data to a mobile station in cellular mobile radio network and corresponding mobile station, base station controller and transmission system. The method and system of the invention applied to a cellular mobile radio network including a mobile station, at least two base transceiver stations and a base station controller. The exchanges of information between the mobile station and the stations are of the time-division multiple access type. The controller transmits to the mobile station via a first station with which the mobile station is communicating an instruction telling it to interrupt communication with the first station in order to send a sequence of synchronization signals to a second station, enabling the second station to calculate a timing advance. The instruction is transmitted when the mobile station moves from a cell defined by a geographical coverage area of the first station to a second cell defined by the geographical coverage of the second station. The calculated timing advance is supplied to the mobile station. The instruction supplied to the mobile station also indicates that the mobile station must continue to communicate with the first station immediately after sending the first sequence of synchronization signals to the second station, and the calculated timing advance is transmitted from the second station to the controller and from the controller to the mobile station via the first station.

REFERENCES:
patent: 3713025 (1973-01-01), McNair
patent: 4494211 (1985-01-01), Schwartz
patent: 5285447 (1994-02-01), Hulsebosch
patent: 5293380 (1994-03-01), Kondo

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