Measurement Relaxation Mechanism for Connected-Mode Power Reduction
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Solution Overview
Problem
In mobile communication systems, excessive radio resource management (RRM) measurements increase power consumption and affect terminal endurance, particularly in connected states where current measurement relaxation mechanisms are not effectively applied.
Innovation Solution
A communication method and device that utilize measurement relaxation criteria, such as non-cell edge, low mobility, and stationary criteria, to determine when to perform or stop RRM measurements and report relaxation indications based on specific threshold conditions, optimizing power usage in connected states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If excessive RRM measurements are performed to obtain current cell channel conditions in a timely manner, then the reliability of channel condition information is improved, but the power consumption of the terminal increases and endurance capacity deteriorates
Solution Approach 1:
The patent implements dynamic adjustment of measurement parameters (measurement cycle extension, stopping neighboring cell measurements) based on terminal mobility state and cell edge conditions. The network device configures different measurement relaxation parameters according to real-time terminal movement status, making the measurement system adaptable rather than static, thus resolving the contradiction between maintaining reliable channel information and reducing power consumption.
Solution Approach 2:
The patent changes measurement parameters (measurement cycle duration, measurement object set) based on terminal state. When terminal mobility is low and at non-cell edge, the measurement cycle is extended and neighboring cell measurements are stopped. This parameter adaptation allows the system to maintain necessary measurement reliability while significantly reducing power consumption in stable conditions.
2Use of energy by moving object
If RRM measurement relaxation is applied to extend measurement cycle or stop neighboring cell measurements, then power consumption is reduced, but the timeliness of channel condition information deteriorates
Solution Approach 1:
The system dynamically switches between relaxed and normal measurement modes based on terminal mobility state changes. When the terminal enters high mobility or cell edge conditions, measurement relaxation is stopped and normal frequent measurements resume, ensuring timeliness is maintained when needed while allowing power savings during stable periods.
Solution Approach 2:
The network device monitors terminal measurement reports and mobility state feedback to determine when to apply or stop measurement relaxation. This feedback mechanism ensures that measurement timeliness is maintained by detecting when channel conditions change sufficiently to require updated measurements, even during relaxed measurement periods.
3Adaptability or versatility
If measurement relaxation criterion information is configured and reported using new IE parameters, then the adaptability of measurement relaxation is improved, but the device complexity increases
Solution Approach 1:
The patent uses existing measurement report mechanisms and IE parameter structures to carry measurement relaxation criterion information, making the solution universally applicable to existing NR terminal and network device implementations. The new IE parameters are integrated into existing RRC message frameworks, allowing multi-functional use of communication protocols without requiring entirely new signaling mechanisms.
Data Source
AI summary
A communication method based on a measurement relaxation mechanism includes: obtaining measurement relaxation criterion information sent by a network device, the measurement relaxation criterion information indicating a measurement relaxation criterion for performing measurement relaxation when a terminal is in a connected state.