Mobile subscriber station operable in a plurality of universal mobile telephone systems
First Claim
1. A mobile subscriber station, operable to execute a selected one of a plurality of different cellular communication standards to enable a subscriber to exchange data with a cell site of a cellular communication system, comprising:
- memory means for storing a plurality of program files, each of which represents a predetermined protocol conversion usable to format data into a predefined protocol for use by said subscriber and said cell site of a cellular communication system in a manner defined by a corresponding to said one of said plurality of different cellular communication standards;
transmitter/receiver means for communicating via radio frequency communication signals with a cell site of a cellular communication system;
means for converting between said radio frequency communication signals and subscriber data to exchange data between said subscriber and said cell site of a cellular communication system, using a one of said plurality of different cellular communication standards, comprising;
means, responsive to receipt of radio frequency communication signals from said cell site, for determining which one of said plurality of different cellular communication standards corresponds to said received radio frequency communication signals, means, responsive to said means for determining, for selecting a one of said plurality of program files corresponding to said one of said plurality of different cellular communication standards, and cellular communications protocol converter means to execute said selected one of said plurality of program files to implement said one of said plurality of different cellular communication standards in the exchange of data between said subscriber and said cell site of a cellular communication system.
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Accused Products
Abstract
The universal UMTS telephone automatically transitions among the plurality of standards implemented by Universal Mobile Telephone Systems as a function of the present location of the universal UMTS telephone. The subscriber therefore can use the universal UMTS telephone in all locations for uninterrupted wireless communications services. A digital signal processor included in the universal UMTS telephone functions to detect the signaling transmitted by the serving Universal Mobile Telephone System. The digital signal processor loads a particular software module that corresponds to the standard that is implemented by the serving Universal Mobile Telephone System and enables the universal set of communication hardware to process the voice and data signals that are transmitted between the subscriber and the serving Universal Mobile Telephone System.
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Citations
8 Claims
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1. A mobile subscriber station, operable to execute a selected one of a plurality of different cellular communication standards to enable a subscriber to exchange data with a cell site of a cellular communication system, comprising:
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memory means for storing a plurality of program files, each of which represents a predetermined protocol conversion usable to format data into a predefined protocol for use by said subscriber and said cell site of a cellular communication system in a manner defined by a corresponding to said one of said plurality of different cellular communication standards;
transmitter/receiver means for communicating via radio frequency communication signals with a cell site of a cellular communication system;
means for converting between said radio frequency communication signals and subscriber data to exchange data between said subscriber and said cell site of a cellular communication system, using a one of said plurality of different cellular communication standards, comprising;
means, responsive to receipt of radio frequency communication signals from said cell site, for determining which one of said plurality of different cellular communication standards corresponds to said received radio frequency communication signals, means, responsive to said means for determining, for selecting a one of said plurality of program files corresponding to said one of said plurality of different cellular communication standards, and cellular communications protocol converter means to execute said selected one of said plurality of program files to implement said one of said plurality of different cellular communication standards in the exchange of data between said subscriber and said cell site of a cellular communication system. - View Dependent Claims (2, 3, 4)
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5. A method of operating a mobile subscriber station, operable to execute a selected one of a plurality of different cellular communication standards to enable a subscriber to exchange data with a cell site of a cellular communication system, comprising:
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storing in a memory a plurality of program files, each of which represents a predetermined protocol conversion usable to format data into a predefined protocol for use by said subscriber and said cell site of a cellular communication system in a manner defined by a corresponding to said one of said plurality of different cellular communication standards;
communicating via radio frequency communication signals with a cell site of a cellular communication system;
converting between said radio frequency communication signals and subscriber data to exchange data between said subscriber and said cell site of a cellular communication system, using a one of said plurality of different cellular communication standards, comprising;
determining, in response to receipt of radio frequency communication signals from said cell site, which one of said plurality of different cellular communication standards corresponds to said received radio frequency communication signals, selecting, in response to said step of determining, a one of said plurality of program files corresponding to said one of said plurality of different cellular communication standards, and executing said selected one of said plurality of program files to implement said one of said plurality of different cellular communication standards in the exchange of data between said subscriber and said cell site of a cellular communication system. - View Dependent Claims (6, 7, 8)
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Specification