Radio communication system and method and mobile communication terminal device
First Claim
1. A communication method for transmitting and receiving information between an information center and a communication terminal device via an intermediate station, comprising the steps of:
- regularly transmitting over a first channel an information packet identifying a type of information to be provided and a version number from said information center to said communication terminal device via said intermediate station;
determining at said communication terminal device whether said type of information corresponds to a user requested information and whether said version number indicates that said user requested information has been updated;
communicating from said communication terminal device to said information center instructions concerning the type of information over a second channel outside of said first channel; and
downloading said user requested information to said communication terminal device from said information center via said intermediate station over said second channel when a result of said step of determining is positive.
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Accused Products
Abstract
In a radio communication system, efficient information provision services obtained, where various information is provided to mobile communication terminal devices separately from call services, update information on information to be provided is transmitted from a base station unit, and a mobile communication terminal device receives the update information and then receives the desired information upon confirming that the desired information has been updated. Consequently, due to the ability to easily determine whether or not the information to be provided has been updated, the mobile communication terminal device need not receive all the information or connect to an information service center, but can efficiently use the information provision services.
31 Citations
4 Claims
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1. A communication method for transmitting and receiving information between an information center and a communication terminal device via an intermediate station, comprising the steps of:
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regularly transmitting over a first channel an information packet identifying a type of information to be provided and a version number from said information center to said communication terminal device via said intermediate station;
determining at said communication terminal device whether said type of information corresponds to a user requested information and whether said version number indicates that said user requested information has been updated;
communicating from said communication terminal device to said information center instructions concerning the type of information over a second channel outside of said first channel; and
downloading said user requested information to said communication terminal device from said information center via said intermediate station over said second channel when a result of said step of determining is positive. - View Dependent Claims (2, 3)
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4. A communication method for transmitting and receiving information between an information center and a communication terminal through an intermediate network, comprising the steps of:
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transmitting from the information center over a first channel an information packet identifying information to be provided to said communication terminal through said intermediate network;
determining at said communication terminal whether the information to be provided is user desired information;
communicating from said communication terminal to said information center instructions concerning the information to be provided over a second channel outside of said first channel; and
transmitting said information to be provided from said information center to said communication terminal via said intermediate network over said second channel in response to said instructions.
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Specification