Paging Hyper-Frame Segmentation for eDRX Power and Reliability
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing power consumption and ensuring reliable paging for devices operating with extended discontinuous reception (eDRX), particularly for machine-type communications, where devices may miss pages due to long sleep cycles and relocation, leading to delayed or missed notifications.
Innovation Solution
The implementation of paging hyper-frames and hyper-frame structures allows for more efficient power management by determining specific paging hyper-frames based on user equipment identification, enabling devices to monitor for paging signals within designated subframes and adjust paging cycles, thereby improving reliability and reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If devices operate with extended discontinuous reception (eDRX) to reduce power consumption, then energy efficiency is improved, but paging reliability deteriorates as devices may miss pages due to long sleep cycles and relocation
Solution Approach 1:
The paging cycle is segmented into multiple paging hyper-frames, each containing multiple radio frames. This segmentation allows the device to sleep through non-critical periods while maintaining the ability to be paged at specific hyper-frame boundaries, thus reducing power consumption while preserving paging reliability.
Solution Approach 2:
The network determines and signals paging hyper-frames in advance to the device. The device uses this information to wake up only at these predetermined hyper-frames for paging monitoring, rather than continuously or at more frequent intervals, thereby reducing power consumption while ensuring reliable page reception.
2Reliability
If devices monitor for paging signals more frequently to improve paging reliability, then paging reliability is improved, but power consumption increases
Solution Approach 1:
The device monitors for paging signals periodically at paging hyper-frames rather than continuously or at traditional DRX intervals. This periodic monitoring at extended intervals reduces power consumption while maintaining acceptable paging reliability for machine-type communications.
3Productivity
If paging hyper-frames are determined based on UE identification to improve paging efficiency, then resource utilization is improved, but system complexity increases
Solution Approach 1:
Each UE is assigned specific paging hyper-frames based on its identification (such as IMSI or S-TMSI). This local customization of paging timing for each device allows efficient resource utilization by distributing paging loads across different hyper-frames, while the determination follows standardized formulas that limit the increase in system complexity.
Data Source
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AI summary
Aspects of the present disclosure provide techniques that may be used wireless network communication devices to support devices operating with extended discontinuous reception (eDRX). An exemplary method, performed by a BS, generally includes determining at least one paging hyper-frame for paging a user equipment (UE) based on an identification (ID) of the UE, the paging hyper-frame determined from a set of periodically occurring hyper-frames that each span a number of radio frames, receiving a request to page the UE, and transmitting a paging signal to the UE in at least one subframe within a radio frame of the paging hyper-frame.