Mobile Terminal Network Selection Using Motion Data
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Solution Overview
Problem
Existing mobile terminals face power consumption issues due to frequent scanning for available wireless access networks, which affects battery life and is inefficient in determining the most suitable network based on geographical location and motion information.
Innovation Solution
A mobile terminal with transceivers and processing apparatus that accesses a database for motion information of wireless access networks, dynamically determining which network to use based on this information, reducing unnecessary scanning and optimizing network selection based on factors like quality, motion, and location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the mobile terminal performs frequent scanning for available wireless access networks, then the network availability information is updated, but the power consumption increases
Solution Approach 1:
The system performs preliminary actions by using GPS to determine the terminal's location and querying a database for motion information about access networks at that location before scanning. This preliminary check allows the system to avoid unnecessary scanning when no suitable networks are expected to be available, thereby reducing power consumption while maintaining network availability information.
Solution Approach 2:
The scanning frequency and behavior are made dynamic based on the terminal's motion state and the motion information of access networks. When the terminal is stationary and no motion is detected in the database, scanning is reduced or suspended. When motion is detected or the terminal moves to a new location, scanning is activated or increased, optimizing the balance between information accuracy and power consumption.
2Measurement precision
If the mobile terminal scans all available networks periodically, then the network selection accuracy is improved, but the time consumption increases
Solution Approach 1:
Before performing a full network scan, the system first determines the terminal's location using GPS and queries the database for motion information about access networks at that location. This preliminary action filters out locations where no suitable networks are expected, allowing the system to skip scanning in those areas and thus reduce time consumption while maintaining accurate network selection where networks are actually available.
Solution Approach 2:
The system applies different scanning strategies based on local conditions - specifically, whether motion information exists in the database for the current location. In locations with known stationary networks, scanning is minimized. In locations where networks are moving or unknown, scanning is performed to ensure accurate network selection. This localized adaptation optimizes both accuracy and time efficiency.
3Reliability
If the mobile terminal uses conventional scanning methods, then the network detection capability is maintained, but the efficiency of determining suitable networks decreases
Solution Approach 1:
The system performs preliminary actions by determining terminal location via GPS and querying the database for motion information before initiating scanning. This preliminary step enables the system to intelligently decide whether scanning is necessary, maintaining network detection capability when needed while significantly improving the efficiency of determining suitable networks by avoiding unnecessary scans.
Solution Approach 2:
The system uses feedback from the database containing motion information of access networks to guide the scanning process. By continuously comparing the terminal's current location with known network positions and their motion states, the system can feedback-controlled when to scan and when to skip scanning, thereby maintaining reliable network detection while improving overall selection efficiency.
Data Source
AI summary
Methods and systems for selecting access networks are disclosed. In one aspects, a mobile terminal includes one or more transceivers configured to selectively connect to the plurality of wireless access networks, and hardware processing circuitry configured to perform operations including obtaining, via one of the plurality of wireless access networks, motion information for one or more other access networks of the plurality of access networks, the motion information indicating motion of one or more connection points; and controlling activation of the one or more transceivers to scan for availability of one or more of the other access networks in dependence on the motion information of the other access networks, wherein the scanning for availability comprises powering up at least one of the one or more transceivers to determine which access networks are present within a proximity of the mobile terminal.