Terminal Mobility Reporting for Low-Power IoT Management
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Solution Overview
Problem
The challenge of effectively managing mobility for IoT devices with limited power and small movement ranges in communication systems is not adequately addressed by conventional systems, particularly in scenarios involving device-to-device, machine-to-machine, and vehicle-to-everything communications.
Innovation Solution
A terminal device is configured to report mobility information to a network device based on target information or indication information, enabling efficient mobility management without requiring a connected state, and a network device sends registration requests with indication information to identify IoT devices capable of ambient power operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If conventional mobility management procedures are used for IoT devices, then mobility information can be reported, but power consumption increases and registration overhead increases
Solution Approach 1:
The patent extracts the essential mobility management function from the conventional registration procedure. Instead of requiring full registration, the network device obtains mobility information through streamlined mechanisms such as using IP address changes as mobility indicators, or through simplified reporting triggered only by significant mobility events. This extraction reduces power consumption while maintaining adequate mobility management capability.
Solution Approach 2:
The patent implements partial mobility management by reporting only essential mobility information rather than complete device state. The terminal device reports mobility information selectively - for example, only when crossing registration areas or when IP address changes occur - rather than continuously or excessively. This partial action approach reduces power consumption and signaling overhead while maintaining sufficient mobility tracking.
2Measurement precision
If mobility information is reported frequently, then mobility management accuracy improves, but power consumption and signaling overhead increase
Solution Approach 1:
The patent implements periodic mobility information reporting based on triggered events rather than continuous reporting. The terminal device reports mobility information periodically when specific conditions are met, such as when leaving a registration area, when IP address changes occur, or when mobility-triggered data packets need to be sent. This event-driven periodic action maintains mobility management accuracy while significantly reducing power consumption compared to continuous reporting.
3Adaptability or versatility
If ambient power-enabled IoT devices are supported, then device versatility improves, but system complexity increases
Solution Approach 1:
The patent implements universal mobility management procedures that work for both traditional powered IoT devices and ambient power-enabled devices. The network device receives mobility information from ambient power devices through the same interfaces and protocols used for other devices, such as using IP address allocation and release events as mobility indicators. This universal approach increases device versatility while avoiding the need for separate complex management systems.
Data Source
AI summary
A terminal device and a network device are disclosed. The terminal device includes a processor and a memory configured to store a computer program, which when executed by the processor, causes the terminal device to report mobility information of the terminal device to a target network device according to target information or first indication information, wherein the target information is configuration information for the terminal device to report the mobility information, and the first indication information indicates that the terminal device is to report the mobility information.