PEI-Based Common Channel Updates for Energy-Efficient Paging
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Solution Overview
Problem
Existing 5G NR networks face inefficiencies in adapting common signals and channels due to the high frequency of SIB1 updates and the limitations of paging early indicators (PEIs) in conveying adaptation information, leading to excessive signaling and energy waste.
Innovation Solution
Utilizing paging early indications (PEIs) to signal the presence or absence of adaptations in common signals or channels, with actual adaptations communicated during designated paging occasions, thereby optimizing energy efficiency by reducing unnecessary transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If SIB1 updates are performed at high frequency to ensure timely configuration changes, then configuration adaptability is improved, but signaling overhead and energy consumption increase
Solution Approach 1:
The patent segments the configuration update mechanism into two parts: PEI provides early indication of upcoming changes, while SIB1 carries the actual configuration details. This segmentation allows UEs to prepare for changes without requiring frequent full SIB1 transmissions, reducing energy consumption while maintaining adaptability.
Solution Approach 2:
The PEI is transmitted before the actual SIB1 configuration update to preliminarily inform UEs of upcoming changes. This preliminary action allows UEs to wake up and prepare for the configuration update in advance, enabling timely adaptation without requiring high-frequency SIB1 transmissions.
2Loss of energy
If PEI is used to indicate paging occasions to reduce unnecessary transmissions, then energy efficiency is improved, but the ability to convey adaptation information is limited
Solution Approach 1:
The patent introduces PEI as an intermediary that bridges the gap between paging indication and configuration update. The PEI carries an adaptation indication field that mediates the transmission of adaptation information, allowing UEs to be informed of configuration changes without requiring full SIB1 content in every PEI transmission.
Solution Approach 2:
The PEI is enhanced to serve multiple functions: it indicates paging occasions, provides wake-up signals, and conveys adaptation information through the adaptation indication field. This multi-functionality allows the PEI to convey essential adaptation information while maintaining energy efficiency.
3Speed
If frequent paging occasions are used to deliver configuration updates, then information delivery timeliness is improved, but signaling overhead increases
Solution Approach 1:
The patent extracts the adaptation indication from the full SIB1 content and places it in the PEI. This extraction allows the essential timing and indication information to be delivered frequently through PEI, while the actual configuration details are transmitted less frequently in SIB1, reducing overall signaling overhead.
Data Source
AI summary
This disclosure provides approaches for the adaptation of common signal and channel transmissions indicated through paging early indications (PEIs) in wireless networks. The disclosed methods and apparatuses allow for improved energy efficiency through on-demand operations and the use of PEIs in the management of paging occasions and signal configurations. Methods of wireless communication performable at a user equipment (UE) are accordingly provided which allow the UE to obtain a PEI indicating a paging occasion (PO), the PEI further indicating a presence or absence of an updated configuration for a common signal or a common channel, monitor the PO based on the PEI, and receive the updated configuration in the PO or in the PEI in response to the monitoring. This approach allows for efficient monitoring and receiving of updated configurations for common signals or channels, thereby improving the efficiency of the communication process and saving network energy.