Communication Terminal PC5 Resource Validity Time Limit

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Solution Overview

Problem

Current radio communication technologies face challenges in supporting V2X communication and Device-to-Device communication within Non-Public Networks (NPNs), particularly in indoor settings like factories, where access control and service availability are unclear, leading to difficulties in establishing appropriate communication technologies for various industries.

Innovation Solution

A communication system where a base station supports Non-Public Networks, and communication terminals determine service availability using identification information, allowing for the implementation of Device-to-Device communication services by identifying accessible NPNs and configuring services accordingly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a base station supports Non-Public Networks with Device-to-Device communication services, then service availability and accessibility are improved, but device complexity and network configuration complexity increase

Engineering Contradiction:
Improveservice availabilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The network information is segmented into multiple SIBs (System Information Blocks) with specific numbering (SIB1, SIB2, etc.), where each SIB carries specific types of information. This segmentation allows the base station to provide comprehensive NPN support information without overwhelming the terminal device with a single large information block, thereby improving service availability while managing device complexity through organized information presentation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

System Information Blocks act as intermediaries that carry and transmit NPN support information from the base station to terminal devices. These SIBs serve as a structured medium that organizes complex network information into accessible formats, enabling terminals to determine service availability without directly processing raw, unstructured data from the base station.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If communication terminals determine service availability using identification information from base stations, then access control precision is improved, but information processing time and complexity increase

Engineering Contradiction:
Improveaccess control precisionVSAvoidinformation processing time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The base station performs preliminary action by pre-configuring and broadcasting System Information Blocks containing NPN support identification information before any terminal device needs to access the network. This advance preparation allows terminals to quickly determine service availability without performing complex real-time analysis, thereby improving access control precision while minimizing information processing time during actual access attempts.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The information is transformed into standardized parameters within SIB structures, where NPN support is represented as specific identification information with defined formats and locations. This parameterization allows terminals to efficiently search and interpret network capabilities using predetermined data structures, reducing processing time while maintaining precise access control through structured information comparison.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20240365211A1Communication terminal apparatus and communication system
Publication Date: 2024.10.31 MITSUBISHI ELECTRIC CORP
  • US20240365211A1 patent drawing
  • US20240365211A1 patent drawing
  • US20240365211A1 patent drawing

AI summary

A communication terminal apparatus in a communication system includes a plurality of communication terminal apparatuses including the communication terminal apparatus. The communication terminal apparatus is configured to perform PC5 communication, which is communication via a PC5 interface, with another communication terminal apparatus of the plurality of communication terminal apparatuses. The communication terminal apparatus is configured to configure a validity time limit for a resource of the PC5 communication.