System and method for updating a time remaining value

Details System and method for updating a time remaining value System and method for updating a time remaining value

1997-12-23

2000-03-28

Trost, William G.

Telecommunications

Radiotelephone system

Usage measurement

455406, 455407, 455408, 455409, H04M 1500

Patent

active

060442581

ABSTRACT:
A method is provided for updating a time-remaining value representative of the time remaining during a predetermined period of time for communication between a mobile communications device and a radio telecommunications network, the mobile communications device having a memory site in which the time-remaining value may be stored. The method has the step of communicating an update request signal from the mobile communications device to the radio telecommunications network. The method also has the step of communicating an initialization value representative of the time remaining within the predetermined period of time for communication between the mobile communications device and the radio telecommunications network from the radio telecommunications network to the mobile communications device in response to the update request signal. The method has the further step of storing the initialization value in the memory site. Also provided are a system for a carrying out the method of updating a time-remaining value, including a mobile communications device and a radio telecommunications network.

REFERENCES:
patent: 5138650 (1992-08-01), Stahl et al.
patent: 5577100 (1996-11-01), McGregor et al.
patent: 5631947 (1997-05-01), Wittstein et al.
patent: 5826185 (1998-10-01), Wise et al.

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