MME Priority-Based Paging Bypass for LTE Signaling Load

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Solution Overview

Problem

In LTE networks, the aggregation of paging messages leads to increased CPU usage and signaling load, causing aggregation delays that negatively impact the service experience of user equipment with high priority.

Innovation Solution

A method where the mobility management entity (MME) receives a downlink data notification message, enables an aggregate paging function, and directly sends a paging message to the base station if the user equipment's priority is higher than a preset level, without using aggregate paging.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If aggregate paging is used to reduce CPU usage and signaling load, then resource efficiency is improved, but aggregation delay increases affecting high priority user equipment service experience

Engineering Contradiction:

ImproveCPU usage and signaling loadVSAvoidaggregation delay

Core Design Contradiction:

Loss of energyVSLoss of time

Solution Approach 1:

The patent segments the paging message handling into two distinct paths: a default aggregate paging path for normal priority users, and a direct paging path for high priority users. This segmentation allows the system to apply different processing strategies based on user priority, thereby reducing aggregation delay for high priority users while maintaining resource efficiency for normal users.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces dynamic priority-based routing where the paging message transmission path is dynamically selected based on the priority level of the user equipment. High priority users are dynamically routed through the direct paging path while normal users use the aggregate paging path, making the system adaptable to different service requirements and reducing aggregation delay for time-sensitive communications.

Inventive Principle:

Principle #15Dynamics

2Loss of time

If paging messages are processed one by one, then high priority user equipment service experience is maintained, but CPU usage and signaling load increase

Engineering Contradiction:

Improveservice response time for high priority usersVSAvoidCPU usage and signaling load

Core Design Contradiction:

Loss of timeVSLoss of energy

Solution Approach 1:

The patent applies local quality by providing differentiated paging message handling based on user priority. High priority users receive immediate individual paging message processing ensuring fast service response, while normal priority users are processed through aggregate paging to reduce overall CPU usage and signaling load. This localized quality adjustment optimizes resource allocation according to service requirements.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS10448362B2Paging message sending method and device

Publication Date: 2019.10.15 HUAWEI TECH CO LTD

AI summary

Embodiments of the present disclosure include a mobility management entity (MME) receives a downlink data notification (DDN) message sent by a serving gateway (SGW), where the DDN message carries an identity of user equipment, and the DDN message is used to instruct the MME to send a paging message to a base station in a tracking area list (TA list) of the user equipment. After enabling an aggregate paging function, the MME determines, according to the DDN message, whether a priority of the user equipment is higher than a preset level. If the priority of the user equipment is higher than the preset level, the MME directly sends the paging message to the base station. The present disclosure is applicable to a paging message sending process.