Synchronization Signal Block System Information Reception

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Solution Overview

Problem

In the context of 5G wireless communication systems, there is a challenge in efficiently receiving system information when it does not exist in the synchronization raster from which a synchronization signal block is detected, leading to increased overhead and reduced communication efficiency.

Innovation Solution

The method involves detecting a first synchronization signal block configured with PSS, SSS, and PBCH at a specific frequency position, determining the presence or absence of system information within a first synchronization raster, and if system information is absent, determining a second synchronization raster with existing system information based on a system information indicator in the PBCH.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the base station transmits system information on all frequency bands, then the user equipment can receive system information, but the overhead increases and communication efficiency decreases

Engineering Contradiction:
Improvesystem information receptionVSAvoidoverhead
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The patent applies local quality by differentiating the transmission of system information across different frequency bands. Instead of uniformly transmitting system information on all bands, the base station transmits system information only on specific bands where it is needed, while omitting it from other bands. This selective transmission approach reduces overhead in bands where system information is not required, while maintaining reliable reception in bands where it is necessary.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent implements partial action by having the base station transmit system information only on a subset of frequency bands rather than all available bands. The base station determines which frequency bands require system information transmission based on network conditions and user equipment requirements, thereby avoiding excessive transmission on bands where system information is not needed.

Inventive Principle:
Principle #16Partial or excessive action

2Reliability

If the base station transmits system information on all frequency bands, then the user equipment can access the network, but the time required for system information acquisition increases

Engineering Contradiction:
Improvenetwork accessVSAvoidsystem information acquisition time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent applies local quality by transmitting system information only on specific frequency bands where network access is actually needed. This localized transmission approach allows user equipment to quickly identify and acquire system information from the appropriate bands without wasting time searching through all frequency bands, thereby reducing the overall time required for system information acquisition while maintaining reliable network access.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The base station performs preliminary determination of which frequency bands require system information transmission before actually transmitting the information. This preliminary action allows the system to prepare and transmit system information only when and where needed, reducing the time user equipment spends acquiring system information by avoiding unnecessary transmissions on irrelevant bands.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS20250081207A1Method and apparatus for receiving system information in the wireless communication
Publication Date: 2025.03.06 LG ELECTRONICS INC
  • US20250081207A1 patent drawing
  • US20250081207A1 patent drawing
  • US20250081207A1 patent drawing

AI summary

The present invention discloses a method for a user equipment to receive system information in a wireless communication system. Particularly, the method is characterized in detecting a first synchronization signal block configured with a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS) and a Physical Broadcasting Channel (PBCH) at a specific frequency position, determining a presence or non-presence of system information corresponding to the first synchronization signal block within a first synchronization raster corresponding to a specific frequency position based on a system information indicator included in the PBCH, and if the system information corresponding to the first synchronization signal block is determined as not existing, determining a second synchronization raster having system information exist therein based on the system information indicator.