Paging Method for Prioritizing High-Priority Packets During Network Congestion
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Solution Overview
Problem
Conventional mobile communication systems fail to page user terminals in an idle state, even when high-priority packets need to be received, due to paging restrictions during congestion states.
Innovation Solution
A paging method that involves setting reception type information in a paging request signal by a gateway apparatus and sending it to a core network apparatus, allowing the apparatus to determine whether to page the user terminal based on this information, even during congestion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If paging restriction is applied during congestion state, then network load is reduced, but high-priority packets cannot be delivered to idle user terminals
Solution Approach 1:
The patent applies different paging strategies based on packet priority levels. High-priority packets trigger paging even during congestion, while low-priority packets are subject to paging restriction. This local differentiation resolves the contradiction by allowing selective packet delivery without increasing overall network load.
Solution Approach 2:
The patent introduces a packet priority parameter that changes the paging behavior based on packet characteristics. By classifying packets into different priority levels, the system can dynamically adjust paging decisions to ensure high-priority packet delivery while maintaining congestion control for lower-priority traffic.
2Productivity
If paging restriction is applied to all packets, then congestion control is achieved, but flexible packet delivery is lost
Solution Approach 1:
The patent implements differentiated paging policies based on packet priority classes. High-priority packets receive preferential treatment with relaxed paging restrictions, while low-priority packets are subject to strict paging control. This local quality approach maintains congestion control effectiveness while providing flexible delivery for critical traffic.
Solution Approach 2:
The patent introduces dynamic paging decision-making based on packet priority attributes. The system can adapt its paging behavior in real-time based on the priority level of incoming packets, allowing flexible response to different service requirements while maintaining overall congestion management.
3Device complexity
If uniform paging is applied to all user terminals, then system simplicity is maintained, but packet type differentiation is lost
Solution Approach 1:
The patent attaches priority information to individual packets, enabling the paging system to differentiate treatment based on packet characteristics. This localized quality approach allows the system to maintain relative simplicity while gaining the ability to distinguish and handle different packet types appropriately.
Solution Approach 2:
The patent uses packet priority information as an intermediary element that carries differentiation data without fundamentally changing the paging architecture. This intermediary approach enables packet type awareness while maintaining system simplicity by leveraging existing packet header fields rather than introducing complex new mechanisms.
Data Source
AI summary
A paging method of the present invention is a paging method for paging a UE (10) in an idle state when a P-GW (20) receives a packet for the UE (10) and includes the steps of: in a S-GW (30), setting reception type information of the packet received by the P-GW (20) in “Downlink Data Notification” and sending the “Downlink Data Notification” to an MME (40) and an SGSN (60), and in the MME (40) and SGSN (60), determining whether or not to page the UE (10) based on the reception type information included in the “Downlink Data Notification” from the S-GW (30).