Method for optimal selection among multiple providers in a wirel

Details Method for optimal selection among multiple providers in a wirel Method for optimal selection among multiple providers in a wirel

1996-06-28

1998-12-01

Cuchlinski, Jr., William A.

Telecommunications

Transmitter and receiver at separate stations

4551541, 4551611, 4551681, 4551801, H04Q 700, H04Q 900

Patent

active

058451986

ABSTRACT:
A communication device locates a preferable wireless service provider in a multi-service provider environment using a frequency band search schedule. Initially, the communications device registers with a less preferred service provider in a first frequency band. While remaining registered with the less preferred service provider, the device examines several frequency bands in the order specified by the frequency band search schedule. A frequency band is examined by dividing the frequency band into many sub-bands, and by locating the strongest signal above a threshold within the sub-band being examined. The examination continues until a second frequency band having a more preferred service provider is located. The communication device then registers with the more preferred service provider. The order of search of the frequency spectrum may be based upon registration history of the communication device.

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