Dual-Receiver Paging Monitoring for Low-Power Coverage Reliability
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Solution Overview
Problem
The limited coverage and high signal quality requirements of almost zero power (AZP) receivers in wireless communication systems lead to potential loss of paging messages when terminals move out of coverage, and the use of main radio devices for monitoring wake-up indications consumes significant power.
Innovation Solution
Implementing a dual-receiver system with a main radio device and an AZP receiver, utilizing different paging monitoring periods to minimize power consumption while maintaining message reception, where the main radio device operates in longer periods and the AZP receiver operates in shorter periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the AZP receiver is used for paging monitoring, then power consumption is reduced, but coverage is limited and signal reception quality requirements are high
Solution Approach 1:
The paging monitoring function is segmented between two receivers: the AZP receiver handles low-power monitoring during idle periods, while the main radio device handles full-function monitoring when activated. This segmentation allows the system to achieve low power consumption during idle states while maintaining reliable coverage when needed.
Solution Approach 2:
The system dynamically switches between different monitoring modes based on conditions. The AZP receiver operates during idle paging monitoring periods, and the main radio device is activated when the wake-up indication is detected or when moving out of AZP coverage, creating a dynamic adaptation to varying operational requirements.
2Reliability
If the main radio device is used for monitoring wake-up indications, then coverage is improved, but power consumption increases significantly
Solution Approach 1:
The main radio device operates periodically rather than continuously. It is activated at specific intervals to monitor for wake-up indications and then returns to a low-power state. This periodic operation significantly reduces overall power consumption while maintaining the ability to detect paging messages when needed.
Solution Approach 2:
The AZP receiver acts as an intermediary that performs initial paging monitoring and triggers the main radio device only when necessary. This intermediary approach allows the system to maintain good coverage capability through the main radio device while minimizing its power consumption by limiting its operation to specific trigger events.
3Use of energy by moving object
If the AZP receiver is configured for the terminal, then power saving is achieved, but the terminal is likely to move out of coverage, resulting in loss of paging message
Solution Approach 1:
The system uses feedback from the AZP receiver's monitoring results to control activation of the main radio device. When the AZP receiver detects a wake-up indication or when monitoring conditions indicate potential loss of coverage, it triggers the main radio device to activate and perform full monitoring, ensuring paging messages are not lost while the terminal moves.
Solution Approach 2:
The main radio device is activated in advance based on predictions or indicators from the AZP receiver before actual paging message loss occurs. This preliminary activation ensures that when the terminal moves out of AZP coverage, the main radio device is already operational to receive paging messages, preventing information loss.
Data Source
AI summary
A paging monitoring method, performed by a terminal, includes receiving first and second paging monitoring configuration information, using a first receiver to perform paging monitoring using a first paging monitoring period, and using a second receiver to perform paging monitoring using a second paging monitoring period, and triggering the first receiver to perform paging monitoring within the second paging monitoring period, in cases where, within the second paging monitoring period, a condition for triggering the first receiver to perform paging monitoring is satisfied. The first paging monitoring period is greater than the second paging monitoring period, and power consumption of the first receiver is greater than power consumption of the second receiver. The first and second paging monitoring configuration information is configured to use the first and second receiver to perform paging monitoring using the first and second paging monitoring period, respectively.