Ericsson Gmbh

Richard Michael Abdella

Raymond C Henry

Scott Gordon Hicks

Amish Kirit Shah

A paging channel may be monitored for incoming calls to a mobile terminal by determining a current operating environment of the mobile terminal and then adjusting the paging channel monitoring frequency based on the current operating environment. Realizing that decreased power consumption may be preferred to improved responsiveness to incoming calls in some operating environments while improved responsiveness to incoming calls may be preferred to decreased power consumption in other operating environments, a mobile terminal may dynamically balance responsiveness to incoming calls with power consumption in accordance with its operating environment rather than being limited to a static or semi-static balance between the two performance criteria.

Systems, methods, and computer program products for dynamically adjusting the paging channel monitoring frequency of a mobile terminal based on the operating environment

An improved band scan method is claimed which allows a mobile unit to more quickly locate appropriate control channels in a wireless communications system operating on a communications spectrum having channel bands. The method includes storing a list of acceptable service providers in the mobile unit, receiving service provider information identifying the service provider for a particular control channel, receiving minimum acceptable signal strength information for the control channel, determining the acceptability of the service provider by comparing the received service provider information against the acceptable service provider list, and, if the service provider is acceptable, comparing the received signal strength for the control channel against the minimum acceptable level. If the control channel is allocated to an unacceptable service provider, the mobile unit terminates the band scan and returns to the procedure invoking the band scan without comparing the received signal strength for the control channel against the minimum acceptable level. By checking the service provider information earlier than in prior art methods, the present method allows for the checking of received signal strength against the minimum acceptable level to be deferred or avoided in many circumstances. The method helps reduce the time required and otherwise increases the efficiency of control channel scanning, particularly in IS-136 cellular telephone systems.

Method for reducing control channel scan time

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.

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Raleigh, NC, United States of America

Richard Michael Abdella