Method and apparatus for radio handset spectrum range registrati

Details Method and apparatus for radio handset spectrum range registrati Method and apparatus for radio handset spectrum range registrati

1993-06-28

1994-12-13

Kuntz, Curtis

Telephonic communications

Audio message storage, retrieval, or synthesis

379 59, 455 334, H04M 1100, H04Q 700

Patent

active

053735471

ABSTRACT:
A method for handset spectrum registration in cordless telephone systems having base stations operating in a first spectrum (102) and a second spectrum (101) where the first and second spectrums have a portion (103) of overlapping spectrum ranges comprises the steps at a handset (206) of scanning (18) the portion of overlapping spectrum ranges provided by a base station which is either a first base station having the first spectrum range or a second base station having the second spectrum and then choosing (20) a channel within the overlapping spectrum ranges substantially free from interference and designating the channel as the initial link establishment channel and as a re-establishment channel for subsequent re-establishment links. The handset then sends (22) a re-establishment link request to the base station to have the base re-establish a link with the re-establishment channel on the handset. Then, the handset determines (24) if the re-establishment channel was for a base station operating in the first spectrum range or a base station operating in the second spectrum range by measuring the amount of time it takes to achieve the re-establishment.

REFERENCES:
patent: 5218630 (1993-06-01), Patsiokas et al.
patent: 5280541 (1994-01-01), Marko et al.

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