Patent EP0779754A2 successfully refreshed from Google Patents.
EP0779754A2
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EP
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A method for selecting a wireless communications service provider in a multi-service provider environment
Assignee: AT&T Mobility II LLC
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Filing: 1996-12-12
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Granted: —
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Expires: 2016-12-12
Abstract
Abstract A communication device locates a wireless service provider in a multi-service provider environment using a frequency band search schedule. The frequency band search schedule has a first or home band and a several other frequency bands in a predetermined order. The order of the frequency bands may be programmed by the user or by a home service provider over the air. The communication device searches for an acceptable service provider by examining the home band and then the other bands listed in the frequency band search schedule. The bands are examined in the order specified by the frequency band search schedule. An acceptable service provider is identified by comparing the identity of a service provider specified by an identifier received from a band being examined with a list of acceptable service providers.
Inventors
- 👤 Michael D. Bamburak
- 👤 John J. Daly
- 👤 Christopher Gregory Lawrence
- 👤 Michael Edward Prise
- 👤 Michael Allen Raffel
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 19:00
CPC Classifications
H; H04; H04W; H04W48/00; H04W48/16; H04B; H04B7/00; H04B7/24; H04B7/26; H04B7/2621; H04W48/18; H04W88/00; H04W88/02; H04W88/06
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
81 words
A method by which a communication device locates a wireless service provider in a multi-service provider environment, comprising the steps of: storing a frequency band search schedule, the frequency band search schedule having a first band and a plurality of bands in a predetermined order; and examining frequency bands until a frequency band having an acceptable service provider is located by examining the first band and then the plurality of bands in the order specified by the frequency band search schedule.
Claim 2
Dependent Claim
40 words
The method of claim 1 further comprising the step of: identifying an acceptable service provider by comparing the identity of a service provider specified by an identifier received from a band being examined with a list of acceptable service providers.
Claim 3
Independent Claim
30 words
The method of claims 1 or 2, wherein the first band is a last frequency band that the communication device used for service registration when the communication device was deactivated.
Claim 4
Independent Claim
31 words
The method of claims 1 or 2, wherein the first band is a frequency band that the communication device used for service registration when the communication device was last powered up.
Claim 5
Independent Claim
107 words
A method by which a communication device locates a wireless service provider in a multi-service provider environment, comprising the steps of: storing a frequency band search schedule, the frequency band search schedule having a plurality of bands in a predetermined order; examining a last frequency band used during a preceding period of communication device activity; forming a modified frequency band search schedule by duplicating the frequency band search schedule with the last frequency band removed; and examining frequency bands until a frequency band having an acceptable service provider is located by examining the plurality of bands in the order specified by the modified frequency band search schedule.
Claim 6
Dependent Claim
40 words
The method of claim 5, further comprising the step of identifying an acceptable service provider by comparing the identity of a service provider specified by an identifier received from a band being examined with a list of acceptable service providers.
Claim 7
Independent Claim
30 words
The method of claims 5 or 6, wherein the last band is a last frequency band that the communication device used for service registration when the communication device was deactivated.
Claim 8
Independent Claim
31 words
The method of claims 5 or 6, wherein the last band is a frequency band that the communication device used for service registration when the communication device was last powered up.
Claim 9
Independent Claim
27 words
The method of claims 1, 2, 5 or 6, further comprising the step of modifying the frequency band search schedule using information transmitted over a wireless interface.
Claim 10
Independent Claim
25 words
The method of claims 1, 2, 5 or 6, further comprising the step of modifying the frequency band search schedule using information from a keypad.
References Cited (Backward Citations)
No citation records indexed.
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