Service restriction control for mobile communications

Details Service restriction control for mobile communications Service restriction control for mobile communications

2005-05-03

2005-05-03

Trost, William (Department: 2683)

Telecommunications

Radiotelephone system

Programming control

C455S414100, C455S420000, C455S450000, C370S466000

Reexamination Certificate

active

06889040

ABSTRACT:
The possibility of incompatibility between wireless communication system stations having the most recent protocol revisions is addressed by transmitting from the base station to a mobile station characteristics that identify a mobile station group that is restricted to using less than the most recent protocol revision. Using less than the most recent protocol revision may involve using an earlier revision or a subset of the most current protocol revision. This permits a base station to direct mobiles to avoid using protocol revisions or features of protocol revisions that have been insufficiently tested or that have a history of problems for a particular base station/mobile station combination.Additionally, when a mobile station receives a message from a base station identifying which mobile stations are subject to what set of restrictions, the mobile station then sends a message to the base station requesting service that matches the restrictions that were identified associated with the group to which the mobile station belongs.

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European Search Report.

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