Terminal Registration Area Segmentation for Low-Power Network Updates
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Solution Overview
Problem
Zero-power terminals in communication systems experience frequent registration update processes, leading to significant battery energy consumption, which contradicts their low-power requirements.
Innovation Solution
A network device sends a message to a terminal device to determine its location within predefined registration update areas, allowing the terminal device to trigger updates only when moving between these areas, thereby reducing unnecessary energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE performs registration update processes when moving out of the registration area, then the network can track the UE location, but the frequency of registration updates increases significantly, leading to high energy consumption
Solution Approach 1:
The patent divides the registration area into multiple sub-registration areas. The terminal device only triggers registration update when moving between sub-registration areas, not when moving between all registration areas. This segmentation reduces the frequency of registration updates while maintaining network tracking capability.
Solution Approach 2:
The patent implements partial monitoring by allowing the terminal device to perform registration updates only in certain conditions (when moving between sub-registration areas) rather than continuously monitoring all registration area boundaries. This partial action reduces energy consumption while maintaining sufficient network tracking.
2Loss of information
If the terminal device continuously monitors registration area boundaries, then the network can maintain accurate location information, but the terminal device experiences frequent registration updates and high power consumption
Solution Approach 1:
By segmenting the registration area into sub-registration areas, the system maintains location information accuracy at a finer granularity without requiring continuous monitoring of all registration area boundaries. The terminal device only needs to monitor sub-registration area transitions, reducing energy loss.
Solution Approach 2:
The patent changes the monitoring parameter from registration area boundaries to sub-registration area boundaries. This parameter change allows the system to maintain location accuracy while reducing the frequency of registration updates and associated energy consumption.
Data Source
AI summary
A network device and a terminal device are provided. The network device includes a processor, a transceiver and a memory. The transceiver is configured to send a first message to a terminal device, where the first message is used by the terminal device to determine whether the terminal device is located in a first registration update area. The first registration update area is an area where the terminal device triggers a registration update process, and the first registration update area is one of multiple registration areas of the terminal device. Each of the plurality of registration areas is a candidate area where the terminal device can trigger the registration update process.