Radio link parameter control in wireless personal communications

Details Radio link parameter control in wireless personal communications Radio link parameter control in wireless personal communications

1993-01-07

1995-11-28

Urban, Edward F.

Telecommunications

Transmitter and receiver at separate stations

With control signal

379 63, 34082516, 455 88, H04B 140, H04B 726, G05B 2302

Patent

active

054716500

ABSTRACT:
In personal communications systems, a wireless handset user is not generally aware of the quality of the radio link to the base station when a call is in progress. Novel mechanisms are disclosed by which the handset user is given up-to-date information concerning radio link parameters. According to the invention, the base station continuously analyzes the received signal of a handset and sends back to the handset a signal indicative of the link parameters. Upon receiving the signal, the handset informs the user by way of either processed sidetone or other indications.

REFERENCES:
patent: 4788712 (1988-11-01), Umemoto
patent: 4890332 (1989-12-01), Takahashi
patent: 4939766 (1990-07-01), Umemoto et al.
patent: 4974251 (1990-11-01), Ohta et al.
patent: 5014294 (1991-05-01), Kromenaker et al.
patent: 5212823 (1993-05-01), Fujii et al.
patent: 5289459 (1994-02-01), Brownlie
patent: 5386589 (1995-01-01), Kanai

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