Wireless Paging via Selected SSBs to Cut Signaling Overhead

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Solution Overview

Problem

Existing communication systems incur unnecessary signaling overhead and power consumption by transmitting paging messages on every synchronization signal block (SSB) within a cell when paging user equipment (UE) in RRC_IDLE or RRC_INACTIVE states.

Innovation Solution

A network device obtains and transmits information about specific SSBs to be used for paging, allowing the network to determine which SSBs to page the UE on, thereby reducing the need to transmit on all SSBs and conserving energy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the base station transmits paging messages on every synchronization signal block (SSB) within the cell, then the terminal device can be reliably paged regardless of which SSB it is monitoring, but unnecessary signaling overhead and power consumption are generated

Engineering Contradiction:

Improvepaging reliabilityVSAvoidnetwork power consumption

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The base station performs preliminary actions by determining which SSBs the terminal device is monitoring before transmitting the paging message. The network device obtains first information indicating at least one SSB used to page the terminal device, and transmits the paging message containing this first information to the second network device. This preliminary determination avoids the need to transmit paging messages on all SSBs, thereby reducing energy consumption while maintaining reliable paging.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If the base station transmits paging messages on every synchronization signal block (SSB) within the cell, then all terminal devices can be reached, but signaling overhead increases unnecessarily

Engineering Contradiction:

Improvepaging coverageVSAvoidsignaling overhead

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The invention extracts only the necessary SSB information from the complete set of SSBs in the cell. The network device obtains first information indicating at least one SSB used to page the terminal device, extracting precisely the SSBs that are relevant for paging this specific terminal device. This extraction approach eliminates the need to include all SSBs in the paging transmission, thereby reducing signaling overhead while maintaining complete paging coverage for the target device.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS20250374240A1Communication method, network device, communication system, medium, chip, and program product

Publication Date: 2025.12.04 HUAWEI TECH CO LTD

AI summary

This disclosure relates to a wireless communication method, a network device, a communication system, a computer-readable storage medium, a chip, and a computer program product. According to an example of the wireless communication method, a first network device obtains first information of a terminal device. The first information indicates at least one synchronization signal block used to page the terminal device. The first network device transmits, to a second network device, a paging message used to page the terminal device. The paging message includes the first information.