Patent ID: 6216001
Filing Date: 2001-04-10
Classification: H04L,H04W

Abstract:
A method of transitioning between service modes and indicating a current service mode to a user of a wireless communication device, the method comprising:determining a status of a signal associated with a forward channel from a messaging system to the wireless communication device;determining a quality metric based upon the status over a predetermined period of time;providing a full service mode, a basic service modes and a storing service mode;if the current service mode is the storing service mode, transitioning to the basic service mode after determining the quality metric is better than a first predetermined threshold;if the current service mode is the basic service mode, transitioning to the full service mode after verification of a reverse channel from the wireless communication device to the messaging system,if the current service mode is the full service mode, transitioning to the basic service mode after determining the reverse channel has become degraded;providing an indication of the current service mode to the user; anddetermining an initial value for the current service mode by inspecting the signal for synchronization information,initializing the current service mode to the storing service mode if no synchronization information is found, andinitializing the current service mode to the basic service mode if synchronization information is found.