Interlaced Paging for 5G IoT Terminals

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Solution Overview

Problem

In 5G networks, the high number of beams in cells with high-frequency deployment leads to increased signaling load and power consumption for terminal devices, particularly for delay-tolerant IoT devices that do not require immediate network access.

Innovation Solution

Implementing an interleaved paging message sending method based on terminal type, where high-latency terminals receive paging messages on specific beams during designated paging occasions, reducing the frequency and density of transmitted messages.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If paging message is sent on each beam in each cell for high-frequency deployment, then the paging coverage is improved, but the signaling load of the network increases

Engineering Contradiction:

Improvepaging coverageVSAvoidsignaling load

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The patent segments the paging process by dividing terminals into different types (delay-tolerant and non delay-tolerant) and applying different paging strategies to each segment. For delay-tolerant terminals, interlaced paging is used where the same paging message is transmitted on different beams at different time intervals, reducing the overall signaling load while maintaining coverage.

Inventive Principle:

Principle #1Segmentation

2Reliability

If paging message is sent on each beam in each cell for high-frequency deployment, then the paging coverage is improved, but the power consumption of terminal devices increases

Engineering Contradiction:

Improvepaging coverageVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent implements periodic interlaced paging for delay-tolerant terminals, where paging messages are transmitted at regular time intervals across different beams. Terminals can enter sleep modes between paging occasions, significantly reducing power consumption while still being able to receive paging messages when transmitted.

Inventive Principle:

Principle #19Periodic action

3Quantity of substance

If interlaced paging is used for delay-tolerant terminals, then the signaling load is reduced, but the paging delay increases

Engineering Contradiction:

Improvesignaling loadVSAvoidpaging delay

Core Design Contradiction:

Quantity of substanceVSLoss of time

Solution Approach 1:

The patent applies different paging qualities to different terminal types. Delay-tolerant terminals receive interlaced paging with reduced frequency and higher delay tolerance, while non delay-tolerant terminals receive immediate paging on all beams. This local differentiation optimizes signaling load for IoT devices without impacting time-sensitive services.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS11363562B2Method for sending and receiving paging message, network device and user device

Publication Date: 2022.06.14 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD

AI summary

Disclosed in the present invention are a method for sending and receiving a paging message, a network device, a terminal device and a computer storage medium. The method includes: when paging for a terminal device is triggered, determining whether to interlacedly send the paging message to the terminal device based on a terminal type of the terminal device.