eDRX Parameter Selection for RRC State Transitions
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Solution Overview
Problem
In 5G network environments, there is a need to clarify how to transition from the RRC_INACTIVE state to the RRC_IDLE state using appropriate eDRX configuration parameters to manage power consumption and service latency effectively.
Innovation Solution
A method and apparatus are provided to determine whether to use a first or second extended Discontinuous Reception (eDRX) configuration parameter after entering from the inactive state to the idle state, with the first parameter corresponding to the inactive state and the second to the idle state, allowing flexible control of the terminal's monitoring state to conserve power without affecting latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the terminal uses the first eDRX configuration parameter (corresponding to inactive state) after transitioning to idle state, then power saving is improved, but service latency increases
Solution Approach 1:
The patent applies dynamics by making the eDRX configuration parameter selection adaptive based on the transition cause. The terminal dynamically chooses between the first eDRX parameter (for power saving in inactive state) and the second eDRX parameter (for lower latency in idle state) based on whether the transition was network-initiated or terminal-initiated, thereby optimizing the trade-off between power saving and latency according to actual usage scenarios
Solution Approach 2:
The patent changes the parameter selection strategy based on transition conditions. By detecting the transition cause (network-initiated vs. terminal-initiated), the system changes which eDRX configuration parameter is applied, allowing optimization of either power saving or latency depending on the specific scenario
2Loss of time
If the terminal uses the second eDRX configuration parameter (corresponding to idle state) after transitioning from inactive state, then service latency is improved, but power consumption increases
Solution Approach 1:
The system dynamically selects the appropriate eDRX parameter based on the transition cause. When the transition from inactive to idle state is network-initiated, the terminal uses the second eDRX parameter to minimize latency. When terminal-initiated, it uses the first eDRX parameter to save power, thus dynamically optimizing the latency-power trade-off
Solution Approach 2:
The patent implements parameter change by selecting different eDRX configuration parameters based on the transition condition. The terminal changes its parameter selection behavior according to whether the transition was triggered by network or terminal, allowing optimization of service latency when needed and power saving when appropriate
3Loss of time
If the terminal continuously monitors the monitoring state to ensure service quality, then service latency is improved, but power consumption increases
Solution Approach 1:
The patent changes the monitoring parameter (eDRX configuration) based on the transition cause. By selecting the appropriate eDRX parameter (first for power saving, second for latency optimization), the system dynamically adjusts the monitoring behavior to balance between continuous monitoring for service quality and power-saving discontinuous monitoring
Data Source
AI summary
Provided in the embodiments of the disclosure are a method and apparatus for determining a configuration parameter, and a terminal. The method includes that: a terminal determines, after entering from an inactive state to an idle state, to use a first extended Discontinuous Reception (eDRX) configuration parameter or a second eDRX configuration parameter to control a monitoring state of the terminal. The first eDRX configuration parameter is an eDRX configuration parameter corresponding to the inactive state, and the second eDRX configuration parameter is an eDRX configuration parameter corresponding to the idle state.