Network Selection Adaptation for MTC Power Optimization
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Solution Overview
Problem
Next-generation mobile communications networks face challenges in efficiently managing the increased capacity and variety of devices, particularly with machine type communications (MTC) devices, which require optimized network selection based on power consumption, mobility, and data transmission characteristics.
Innovation Solution
A communications system where an access server provides selection information to terminals, allowing them to measure and select wireless networks based on preferred characteristics such as power consumption, mobility, and data transmission requirements, adapting rules and measurements to ensure optimal network choice.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a communications terminal uses traditional network selection methods based on general rules from ANDSF, then network coverage and basic connectivity are maintained, but power consumption is not optimized and network selection efficiency deteriorates for MTC devices
Solution Approach 1:
The patent changes the parameters of network selection by introducing communication characteristic-based adaptation. The access server modifies selection information and measurement parameters according to the terminal's communication characteristics (e.g., MTC devices with delay tolerance select networks optimized for power saving), thereby optimizing power consumption while maintaining selection efficiency through characteristic-matched parameter sets
Solution Approach 2:
The terminal performs self-service by autonomously adapting measurement parameters and selection criteria based on its own communication characteristics. The device automatically adjusts which measurements to perform and how to interpret them according to its power constraints and communication requirements, eliminating the need for manual configuration while achieving optimized network selection
2Productivity
If the access server provides generic selection information to all terminals, then system complexity is reduced, but network selection performance deteriorates for specific device types like MTC
Solution Approach 1:
The access server applies local quality by providing customized selection information tailored to each terminal's communication characteristics. Instead of uniform generic rules, the server delivers adapted selection criteria specific to MTC devices, smartphones, or other device types, thereby improving network selection performance for each device category while managing complexity through characteristic-based classification
Solution Approach 2:
The system implements dynamics by making selection information adaptive rather than static. The access server dynamically adjusts selection criteria and measurement parameters based on the terminal's communication characteristics, allowing the system to flexibly respond to different device requirements without requiring completely separate configuration sets for each device type
3Measurement precision
If measurements are performed according to fixed parameters, then measurement process simplicity is maintained, but measurement accuracy deteriorates for different communication scenarios
Solution Approach 1:
The patent applies parameter changes by adapting measurement parameters according to communication characteristics. For example, MTC devices with delay tolerance use different measurement timing and thresholds compared to real-time communication devices, thereby improving measurement accuracy for each scenario while the access server manages the complexity of parameter adaptation based on device classification
Data Source
AI summary
A communications system communicating data to/from a communications terminal includes plural wireless communications networks to transmit/receive signals to/from the communications terminal via wireless access interfaces. The communications terminal receives from an access server selection information for selecting one of the wireless communications networks, for transmitting or receiving the data in accordance with the selection information in combination with one or more determined measurements of the wireless access interface of the wireless communications networks. The access server includes an indication of a preferred communications characteristic for transmitting or receiving the signals representing the data, and in accordance with the preferred communications characteristic the communications terminal adapts the determined measurements and selects one of the wireless communications networks which most closely satisfy the preferred communications characteristic in accordance with the adapted-determined measurements.