Method for selecting a preferable wireless communications service provider in a multi-service provider environment
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United States of America Patent
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-
Mar 18, 2008
Grant Date -
Nov 4, 2004
app pub date -
May 26, 2004
filing date -
Dec 12, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A communication device locates a preferable wireless service provider in a multi-service provider environment using a frequency or frequency band search schedule. Initially, the communication device registers with a less preferred service provider in a first frequency. While remaining registered with the less preferred service provider, the device examines several frequencies in the order specified by the frequency search schedule. The device determines whether the last frequency used by the communication device has a more preferred service provider. If the last frequency used does not have a more preferred service provider, the device examines each of the plurality of frequencies in the predetermined order in the search schedule. The examination continues until another frequency band having a more preferred service provider is located. The communication device then registers with the more preferred service provider.
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