Using Base-Station Location to Assist Mobile-Device system Acquisition
First Claim
1. A method for a mobile station to select a carrier frequency, wherein the mobile station stores a mobile-station network identifier, the method comprising:
- receiving, from a base station on a first carrier frequency, geographic coordinates of the base station and a base-station network identifier;
determining whether the base-station network identifier matches the mobile-station network identifier;
if the base-station network identifier matches the mobile-station network identifier, selecting a home carrier frequency; and
if the base-station network identifier does not match the mobile-station network identifier, using the geographic coordinates of the base station to identify a market area and selecting a most-preferred carrier frequency from the identified market area.
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Accused Products
Abstract
Methods and systems are provided for using base-station location to assist mobile-device system acquisition. A mobile station, which stores a network identifier, selects a carrier frequency. The mobile station receives, from a base station on a first carrier frequency, geographic coordinates of the base station and a base-station network identifier, and determines whether the base-station network identifier matches the mobile-station network identifier. If the base-station network identifier matches the mobile-station network identifier, the mobile station will scan the indicated home frequency bands and will connect to one of the home frequencies, and if the base-station network identifier does not match the mobile-station network identifier, the geographic coordinates of the base station are used to identify a market area and a most-preferred carrier frequency is selected from the identified market area.
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Citations
20 Claims
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1. A method for a mobile station to select a carrier frequency, wherein the mobile station stores a mobile-station network identifier, the method comprising:
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receiving, from a base station on a first carrier frequency, geographic coordinates of the base station and a base-station network identifier; determining whether the base-station network identifier matches the mobile-station network identifier; if the base-station network identifier matches the mobile-station network identifier, selecting a home carrier frequency; and if the base-station network identifier does not match the mobile-station network identifier, using the geographic coordinates of the base station to identify a market area and selecting a most-preferred carrier frequency from the identified market area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A mobile-station comprising:
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a wireless-communication interface; a processor; and data storage comprising a mobile-station network identifier and instructions executable by the processor for; receiving, from a base station on a first carrier frequency, geographic coordinates of the base station and a base-station network identifier; determining whether the base-station network identifier matches the mobile-station network identifier; if the base-station network identifier matches the mobile-station network identifier, selecting a home carrier frequency; and if the base-station network identifier does not match the mobile-station network identifier, using the geographic coordinates of the base station to identify a market area and selecting a most-preferred carrier frequency from the identified market area. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for a mobile station to select a carrier frequency, wherein the mobile station stores a mobile-station network identifier, the method comprising:
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receiving, from a base station on a first carrier frequency, geographic coordinates of the base station and a base-station network identifier; determining whether the base-station network identifier matches the mobile-station network identifier; if the base-station network identifier matches the mobile-station network identifier, selecting a home carrier frequency; and if the base-station network identifier does not match the mobile-station network identifier; correlating the geographic coordinates of the base station with a corresponding market area; determining whether the corresponding market area comprises (a) at least one roaming carrier frequency and at least one home carrier frequency or (b) at least one roaming carrier frequency and no home carrier frequencies; and selecting a most-preferred carrier frequency from the corresponding market area, wherein if the market area comprises at least one roaming carrier frequency and at least one home carrier frequency, the most-preferred carrier frequency is a home carrier frequency. - View Dependent Claims (20)
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Specification