METHOD OF REGISTERING SERVICES IN MOBILE-COMMUNICATION SYSTEM

• US 20020177438A1
• Filed: 07/14/1999
• Published: 11/28/2002
• Est. Priority Date: 10/13/1998
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: TAKUBO, HIROSHI, SAKAI, KENICHIRO
• Granted Patent: US 7,010,296 B2
• Time in Patent Office: Days
• US Class Current: 455/432.1
• CPC Class Codes: H04W 8/183 Processing at user equipment or user record carrier

Abstract

A method of registering a service whereby a mobile-communication terminal of a given communication-service provider roaming in a network of a foreign communication-service provider registers a service includes the steps of sending a provider identifier of the foreign communication-service provider from the network to the mobile-communication terminal, storing the provider identifier in the mobile-communication terminal, providing a service-code-correspondence table in the mobile-communication terminal, the table showing correspondences of service codes between a plurality of communication-service providers including the given communication-service provider and the foreign communication-service provider, identifying a service code of the foreign communication-service provider corresponding to a service code of the given communication-service provider by referring to the table and the provider identifier when the service code of the given communication-service provider is entered in the mobile-communication terminal, and sending the service code of the foreign communication-service provider from the mobile-communication terminal to the network.

Claims

1. A method of registering a service whereby a mobile-communication terminal of a given communication-service provider roaming in a network of a foreign communication-service provider registers a service, said method comprising the steps of:

sending a provider identifier of the foreign communication-service provider from the network to the mobile-communication terminal;

storing the provider identifier in the mobile-communication terminal;

providing a service-code-correspondence table in the mobile-communication terminal, the table showing correspondences of service codes between a plurality of communication-service providers including the given communication-service provider and the foreign communication-service provider;

identifying a service code of the foreign communication-service provider corresponding to a service code of the given communication-service provider by referring to the table and the provider identifier when the service code of the given communication-service provider is entered in the mobile-communication terminal; and

sending the service code of the foreign communication-service provider from the mobile-communication terminal to the network.

2. The method a claimed in claim 1, wherein the step of sending a provider identifier of the foreign communication-service provider is performed at constant intervals.

3. The method as claimed in claim 1, further comprising the steps of:

receiving by a switch of the network the service code of the foreign communication-service provider sent from the mobile-communication terminal; and

registering data of the received service code in subscriber data stored in the switch.

4. A method of registering a service whereby a mobile-communication terminal of a given communication-service provider roaming in a network of a foreign communication-service provider registers a service, said method comprising the steps of:

sending a correspondence table from the network to the mobile-communication terminal, the table showing correspondences between service codes of the foreign communication-service provider and service codes of a plurality of communication-service providers including the given communication-service provider;

storing the table in the mobile-communication terminal;

identifying a service code of the foreign communication-service provider corresponding to a service code of the given communication-service provider by referring to the table when the service code of the given communication-service provider is entered in the mobile-communication terminal; and

sending the service code of the foreign communication-service provider from the mobile-communication terminal to the network.

5. The method as claimed in claim 4, further comprising the steps of:

receiving by a switch of the network the service code of the foreign communication-service provider sent from the mobile-communication terminal; and

registering data of the received service code in subscriber data stored in the switch.

6. A method of registering a service whereby a mobile-communication terminal of a given communication-service provider roaming in a network of a foreign communication-service provider registers a service, said method comprising the steps of:

sending a service code of the given communication-service provider and a provider identifier directly indicating the given communication-service provider from the mobile-communication terminal to a switch of the network when the service code of the given communication-service provider is entered in the mobile-communication terminal; and

identifying a service code of the foreign communication-service provider corresponding to the service code of the given communication-service provider by referring to the provider identifier and a table which shows correspondences of service codes between a plurality of communication-service providers including the given communication-service provider and the foreign communication-service provider.

7. A method of registering a service whereby a mobile-communication terminal of a given communication-service provider roaming in a network of a foreign communication-service provider registers a service, said method comprising the steps of:

sending information from the network to the mobile-communication terminal, the information being configured to enable the mobile-communication terminal to identify service codes used by the foreign communication-service provider;

identifying a service code of the foreign communication-service provider corresponding to a service code of the given communication-service provider based on said information when the service code of the given communication-service provider is entered in the mobile-communication terminal; and

sending the service code of the foreign communication-service provider from the mobile-communication terminal to the network.

8. A system for mobile communication, comprising:

a base-station-and-switch device which belongs to a first communication-service provider, and includes a provider-identifier-notification unit which transmits a provider identifier of the first communication-service provider; and

a mobile-communication terminal which belongs to a second communication-service provider, and includes;

a provider-identifier-storage unit which stores the provider identifier received from the base-station-and-switch device;

a service-code-correspondence-table storage unit which stores a service-code-correspondence table showing correspondences of service codes between a plurality of communication-service providers including the first and second communication-service providers;

a service-code-analysis unit which identifies a service code of the first communication-service provider corresponding to a service code of the second communication-service provider by referring to the table and the provider identifier when the service code of the given communication-service provider is entered in the mobile-communication terminal; and

a signal-output unit which transmits the service code of the first communication-service provider to the base-station-and-switch device.

9. A system for mobile communication, comprising:

a base-station-and-switch device which belongs to a first communication-service provider, and includes a service-code-correspondence-table notifying unit which transmits a service-code-correspondence table, the table showing correspondences between service codes of the first communication-service provider and service codes of other communication-service providers; and

a mobile-communication terminal which belongs to a second communication-service provider that is one of said other communication service providers, and includes;

a correspondence-table-storage unit which stores the table sent from the base-station-and-switch device;

a service-code-analysis unit which identifies a service code of the first communication-service provider corresponding to a service code of the second communication-service provider by referring to the table stored in the correspondence-table-storage unit when the service code of the second communication-service provider is entered; and

a signal-output unit which transmits the service code of the first communication-service provider to the base-station-and-switch device.