Terminal Device Paging State Management for IoT Power Reduction
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Solution Overview
Problem
In communications technology networks, especially in the Internet of Things, terminal devices experience high power consumption due to frequent switching between non-activated and connected states to listen for paging messages, leading to increased power dissipation.
Innovation Solution
Implementing a method where terminal devices can be set to a first or second non-activated state that listens to paging messages only within a preset time or quantity of times, and then remains in that state, reducing unnecessary power usage by minimizing state switches and only connecting when uplink data needs to be sent or system information is updated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal device constantly switches between non-activated state and connected state to listen for paging messages, then the terminal device can receive downlink data, but the power consumption increases significantly
Solution Approach 1:
The terminal device listens for paging messages periodically at predetermined time intervals rather than continuously. The device alternates between listening for paging messages and entering sleep mode, creating a periodic pattern that reduces power consumption while still allowing reception of downlink data when paging messages indicate data availability.
Solution Approach 2:
The terminal device dynamically adjusts its operational state based on network conditions and data reception needs. The device transitions between non-activated state, connected state, and sleep mode according to whether downlink data is available, optimizing power consumption while maintaining reliable data reception capability.
2Reliability
If the terminal device enters connected state frequently to check for paging messages, then the terminal device can receive system information updates, but the state switching causes high power dissipation
Solution Approach 1:
The terminal device checks for system information updates periodically at predetermined intervals rather than continuously monitoring. This periodic checking mechanism reduces the frequency of state transitions between non-activated and connected states, thereby reducing power dissipation while ensuring system information updates are received when available.
Solution Approach 2:
The terminal device autonomously determines when to wake up and check for paging messages and system information updates based on predetermined time intervals stored in its memory. This self-service approach eliminates the need for continuous network interaction, reducing state switching and power dissipation while maintaining up-to-date system information.
Data Source
AI summary
A data transmission method, apparatus, and system, a network side device, and a terminal device. The data transmission method is applied to the terminal device and includes: setting the terminal device to be in a first non-activated state or a second non-activated state, where in the first non-activated state, the terminal device does not listen to a paging message, and in the second non-activated state, the terminal device listens to a paging message within a first preset listening time or a first preset quantity of listening times, and does not listen to a paging message when the first listening time or the first quantity of listening times is exceeded, setting the terminal device to be in a connected state, and sending, by the terminal device, the uplink data after updating system information; and receiving downlink data that is buffered by the network side device.