Method and system for providing a soft handoff in communications

Details Method and system for providing a soft handoff in communications Method and system for providing a soft handoff in communications

1989-11-07

1992-03-31

Kuntz, Curtis

Telecommunications

Transmitter and receiver at separate stations

455 34, 455 56, 379 60, 375 1, H04Q 700, H04M 1100

Patent

active

051015013

ABSTRACT:
In a cellular telephone system a system for directing communications between a mobile user and cell-sites as a mobile user changes cell-site service areas. The mobile user includes an apparatus for, while in communication with another system user via one cell-site, determining a transition of the mobile user from the cell-site service area to the service area of another cell-site. The system includes circuitry responsive to the indication for coupling communications between the mobile user and the other system user via the new cell-site while the mobile user also remains in communication with the system user via the first cell-site. The system further includes apparatus responsive to the coupling of the communications between the mobile user and the other system user via the new cell-site for terminating the communications between the mobile user and another system user via cell-site with communications continuing between the mobile user and the system user via the new cell-site.

REFERENCES:
patent: 3819872 (1974-06-01), Hamrick
patent: 4112257 (1978-09-01), Frost
patent: 4222115 (1980-09-01), Cooper et al.
patent: 4398063 (1983-08-01), Hass et al.
patent: 4608711 (1986-08-01), Goldman
patent: 4765753 (1988-08-01), Schmidt

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