Telecommunications – Radiotelephone system – Programming control
Patent
1997-12-08
2000-10-17
Chin, Wellington
Telecommunications
Radiotelephone system
Programming control
455418, 370335, H04L 1226
Patent
active
061344346
ABSTRACT:
A system and method for providing subscriber unit or base station initiated service negotiation in a wireless communication system. Message generators in the mobile switching center, base station, and subscriber unit compose messages to be transmitted in association with the service negotiation, while message processors analyze received messages in order to direct the message generators to compose the appropriate response messages. In a subscriber unit initiated service negotiation, the subscriber unit initiates service negotiation by sending a Service Request Message to the base station containing the requested service configuration. The base station then checks with the mobile switching center to ensure that the requested service configuration is authorized for use by the particular subscriber unit. In a base station initiated service negotiation, the base station determines the appropriate service configuration to be used, and includes it in a Change Service Request message transmitted to the mobile switching center. The mobile switching center checks the service configuration to ensure that it is authorized for the particular subscriber unit. The present invention also provides support for service negotiation during soft handoff. In soft handoff using circuit mode transport for inter base station communication, the new service configuration is presented to all target base stations via the mobile switching center.
REFERENCES:
patent: 5420863 (1995-05-01), Taketsugu et al.
patent: 5664004 (1997-09-01), Durchman et al.
patent: 5751802 (1998-05-01), Carr et al.
patent: 5878036 (1999-03-01), Spartz et al.
patent: 5887254 (1999-03-01), Halonen
Hsu Chih-ping
Krishnamurthi Rajeev
Mohanty Bibhu P.
Quick, Jr. Roy F.
Chin Wellington
English Sean
Miller Russell B.
Qualcomm Incorporated
Tran Pablo
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