Mobile Terminal Registration Synchronization for Battery Life
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Solution Overview
Problem
Mobile terminals in radio communication systems face reduced battery life and increased resource usage due to frequent transmitter activations for periodic registrations, which shorten stand-by time and inefficiently occupy system resources.
Innovation Solution
Implementing a method where a mobile terminal synchronizes periodic registrations with the first timer to expire, allowing for simultaneous updates with both the mobile radio communication core network and IMS core network without repeated transmitter activations, and using a network node to provide new timer values and registration update subscribe messages to manage these processes efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the mobile terminal performs periodic registrations with each timer expiry, then the registration is performed timely and the system resource occupation is reduced, but the transmitter activation frequency increases leading to reduced battery life
Solution Approach 1:
The patent merges multiple periodic registration procedures (mobile radio communication core network registration and IMS core network registration) into a single unified registration process. When the first timer expires, the terminal performs both registrations simultaneously through one transmitter activation, rather than activating the transmitter separately for each timer expiry. This combining of operations reduces the frequency of transmitter activations while ensuring both registrations are performed timely.
2Measurement precision
If the mobile terminal performs periodic registrations with each timer expiry, then the location information is updated accurately, but the stand-by time is reduced due to frequent transmitter activations
Solution Approach 1:
The patent combines multiple registration procedures into a single operation that updates location information for both the mobile radio communication core network and the IMS core network simultaneously. This unified approach ensures accurate location information is maintained in both networks while reducing the frequency of transmitter activations, thereby extending the terminal's stand-by time.
3Reliability
If the mobile terminal performs separate periodic registrations for each network, then each network receives timely updates, but the system resources are occupied inefficiently
Solution Approach 1:
The patent merges separate registration procedures for the mobile radio communication core network and the IMS core network into a single unified registration process. This allows both networks to receive timely location updates through one coordinated operation, rather than through separate independent procedures. The result is improved system resource utilization efficiency, as the terminal activates the transmitter less frequently while both networks remain properly updated.
Data Source
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AI summary
The present invention relates to a method for registering a mobile terminal in a mobile radio communication system. The mobile radio communication system comprises at least one mobile radio communication core network and at least one IMS core network. The mobile terminal is located within a radio access network associated to the at least one mobile radio communication core network and comprises at least a first and a second periodic registration timer for respectively registering the mobile terminal with the at least one mobile radio communication core network and the at least one IMS core network upon their respective expiry. The method comprises the step of registering the mobile terminal with the mobile radio communication core network and with the at least one second network as any one of the at least first and second periodic registration timers, which is first to expire, expires.