Method of switching voice channels in a mobile communication sys

Details Method of switching voice channels in a mobile communication sys Method of switching voice channels in a mobile communication sys

1993-11-26

1995-10-03

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at separate stations

455 561, 379 60, H04M 1100

Patent

active

054559634

ABSTRACT:
If the present voice channel activity ratio (.alpha.) of a first radio base station used as an original radio base station is smaller than a threshold (.DELTA.CH) and the present voice channel activity ratio (.beta.) of a second radio base station used as a destination radio base station is equal to or greater than the threshold (.DELTA.CH), a predetermined threshold (.DELTA.AB) for determining the difference between the levels (Ra) and (Rb) of electric fields received from a mobile terminal by the first and second radio base stations is corrected with a value (X) to produce a new threshold (.DELTA.AB+X). If the present voice channel activity ratio (.alpha.) of the first radio base station is equal to or greater than the threshold (.DELTA.CH) and the present voice channel activity ratio (.beta.) of the second radio base station is smaller than the threshold (.DELTA.CH), the threshold (.DELTA.AB) is corrected with a value (Y) to produce a new threshold (.DELTA.-Y). If the difference between the levels (Rb) and (Ra) is equal to or greater than the threshold for determining the difference between the levels (Rb) and (Ra), a call is rerouted from the first radio base station to the second radio base station.

REFERENCES:
patent: 5175867 (1992-12-01), Wejke et al.
patent: 5241685 (1993-08-01), Bodin et al.
patent: 5276907 (1994-01-01), Meidan
patent: 5319795 (1994-06-01), Hamabe et al.

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