Network Device SSB Indication for UE Access Optimization

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Solution Overview

Problem

The initial searching process for User Equipment (UE) to access a network device is prolonged due to the time-consuming search for Synchronization Signal Blocks (SSBs) within a frequency range, leading to increased access time and power consumption.

Innovation Solution

A method where a network device sends an indication to the UE about the presence or absence of SSBs within a specific frequency range, allowing the UE to focus its search on relevant areas and avoid unnecessary scanning, thereby accelerating the initial access process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the UE performs a comprehensive search for SSB within the entire frequency range, then the reliability of network access is improved, but the access time is increased

Engineering Contradiction:

Improvenetwork access reliabilityVSAvoidinitial access time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The network device performs preliminary action by determining in advance whether an SSB exists within a first frequency range and sends an indication to the UE. This preliminary information allows the UE to skip unnecessary searching in frequency ranges where no SSB exists, thereby reducing initial access time while maintaining access reliability.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If the UE performs a comprehensive search for SSB within the entire frequency range, then the reliability of network access is improved, but the power consumption is increased

Engineering Contradiction:

Improvenetwork access reliabilityVSAvoidUE power consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The network device performs preliminary action by determining in advance whether an SSB exists within a first frequency range and sends an indication to the UE. This preliminary information allows the UE to skip unnecessary searching in frequency ranges where no SSB exists, thereby reducing power consumption while maintaining access reliability.

Inventive Principle:

Principle #10Preliminary action

3Productivity

If the network device sends indication information about SSB presence, then the search efficiency is improved, but the signaling overhead is increased

Engineering Contradiction:

Improvesearch efficiencyVSAvoidsignaling overhead

Core Design Contradiction:

ProductivityVSQuantity of substance

Solution Approach 1:

The patent changes the parameter of indication information by encoding the SSB presence/absence status in a compact format. The network device sends indication information that efficiently conveys whether an SSB exists in the first frequency range, improving search efficiency while minimizing signaling overhead through optimized parameter representation.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS11849414B2Indication method, detection method, and related device

Publication Date: 2023.12.19 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD

AI summary

Implementations of the present disclosure provide an indication method, a detection method, and a related device. In the present disclosure, a network device indicates to user equipment, within what frequency domain ranges there is no SSB transmission, thereby preventing the user equipment from performing useless searches in the frequency domain ranges in which there is no SSB.