Mobility Manager Optimizes Power Consumption in Mobile Terminals
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Solution Overview
Problem
Mobile terminals face challenges in managing power consumption while maintaining seamless communication services as they roam across multiple access networks, leading to significant battery drain due to the need to maintain multiple active connections.
Innovation Solution
A telecommunications system with a mobility manager that evaluates network quality and power consumption to selectively switch between available access networks, maintaining a current and backup connection in busy mode and a single connection in idle mode, optimizing power usage while ensuring uninterrupted service.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mobile terminal maintains multiple active connections to different access networks to ensure seamless communication service, then service continuity and reliability are improved, but power consumption increases significantly
Solution Approach 1:
The mobility manager performs preliminary evaluation of multiple access networks before the terminal actually switches, assessing communication quality and power consumption metrics in advance. This allows the system to pre-determine the optimal target network, enabling seamless switching without requiring the terminal to maintain multiple active connections simultaneously, thus ensuring service continuity while reducing power consumption.
Solution Approach 2:
The system implements a feedback mechanism where the mobility manager continuously receives communication quality indicators from the terminal and adjusts network selection decisions based on this feedback. This dynamic adjustment allows the system to maintain reliable service by switching to alternative networks when quality degrades, while avoiding unnecessary multiple active connections that would increase power consumption.
2Reliability
If the mobility manager evaluates and switches between multiple access networks based on communication quality, then service quality is improved, but system complexity increases
Solution Approach 1:
The mobility manager serves as an intermediary entity that centralizes the complex task of evaluating multiple access networks and making switching decisions. Instead of the terminal itself performing complex evaluations, the mobility manager receives simple communication quality indicators from the terminal, performs the sophisticated analysis, and returns switching instructions. This mediator approach improves communication quality through intelligent evaluation while keeping the terminal relatively simple.
3Reliability
If the terminal selects access networks based on communication quality alone, then service quality is maximized, but power consumption is not optimized
Solution Approach 1:
The mobility manager changes the selection parameters from considering only communication quality to a dual-parameter approach that includes both communication quality and power consumption metrics. By evaluating networks on multiple parameters simultaneously, the system can select networks that provide adequate communication quality while consuming less power, thus optimizing the trade-off between service quality and energy efficiency.
Data Source
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AI summary
A telecommunications system comprises a plurality of access networks, each of which can provide a facility for mobile terminals to communicate data in accordance with a communications service when in a coverage area provided by the access network. The telecommunications system also comprises a mobility manager which receives network evaluation messages from a mobile terminal which provide an indication of a quality of communications available via a communications link with one or more of the plurality of access networks, which are currently available for communicating data. The mobility manager identifies one of the access networks with which the mobile terminal should be affiliated for communicating the data via a communications link provided with the access network, and communicates an instruction to the mobile terminal to change affiliation to the identified access network. The mobility manager identifies the access network with which the mobile terminal should become affiliated in accordance with an amount of power, which the mobile terminal may consume when communicating via the identified access network. In this way, service continuity can be provided to the mobile terminal whilst reducing power consumption.