Delayed Paging for Mobile Terminals in Weak Radio Coverage
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Solution Overview
Problem
Existing wireless communication systems face high transmission (TX) power consumption during data exchanges, which significantly contributes to overall UE power consumption, especially in weak coverage and high latency conditions.
Innovation Solution
Implementing a delayed paging feature in the core network and UE for delay-tolerant services, where the network sends a delayed paging indication, and the UE responds only when radio coverage conditions are good, with fallback to normal paging if delayed attempts fail.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous monitoring and polling methods are used to ensure message delivery, then message delivery reliability is improved, but network traffic increases and battery life decreases
Solution Approach 1:
The system implements periodic action by using scheduled transmission windows and periodic monitoring instead of continuous polling. Messages are transmitted at predetermined intervals or when specific conditions are met, rather than continuously checking for delivery status. This reduces energy consumption while maintaining acceptable delivery reliability through periodic status checks and scheduled retransmissions.
Solution Approach 2:
The system applies self-service by enabling devices to autonomously determine their own transmission opportunities based on local conditions and pre-configured parameters. Each device independently manages its message queue, determines optimal transmission times, and handles retransmissions without requiring continuous network coordination or polling, thereby reducing overall network traffic and energy consumption.
2Reliability
If continuous monitoring and polling methods are used to ensure message delivery, then message delivery reliability is improved, but network traffic increases
Solution Approach 1:
The system replaces continuous polling with periodic status checks and scheduled transmission attempts. Messages are transmitted during predetermined windows or when buffer conditions are met, reducing the frequency of network interactions. Acknowledgments and status updates are exchanged only at these periodic intervals rather than continuously, significantly reducing network traffic while maintaining delivery reliability.
Solution Approach 2:
The system implements preliminary action by pre-scheduling transmission windows and pre-configuring message queues before actual data transmission is needed. Devices prepare message buffers in advance and determine optimal transmission times based on predicted network conditions, allowing batched transmissions that reduce overall network traffic compared to immediate on-demand polling and transmission.
3Adaptability or versatility
If IP-based communication protocols are used, then interoperability and routing capabilities are improved, but overhead and complexity increase
Solution Approach 1:
The system applies segmentation by dividing the communication protocol into distinct functional layers: a simplified application layer for delay-tolerant message exchange and a lower layer that handles IP routing when available. This segmentation allows the device to use only the necessary IP functionality for routing while maintaining a lightweight application protocol, reducing overall complexity and overhead while preserving interoperability benefits.
Solution Approach 2:
The system extracts and utilizes only the essential IP routing and addressing capabilities needed for interoperability, while removing unnecessary IP protocol overhead and complexity. The message protocol is designed to work with minimal IP infrastructure, extracting only the core routing and addressing functions required for network communication while simplifying the overall protocol stack for delay-tolerant applications.
Data Source
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AI summary
A delayed paging feature is disclosed to address issues associated with situations in which a UE is paged in low radio coverage conditions and the UE would therefore consume much more power to exchange data with the network in because of the low coverage conditions. The delayed paging feature allows the UE to answer to paging from the network when the coverage conditions improve.