Wireless Carrier Selection Using CBR Thresholds for V2X Reliability

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Solution Overview

Problem

Existing wireless communication systems face challenges in effectively selecting a transmission carrier, particularly in vehicle-to-everything (V2X) systems, to ensure reliable data transmission in super-high frequency bands.

Innovation Solution

A method and apparatus for selecting a transmission carrier in a wireless communication system that involves acquiring threshold values for channel busy ratio (CBR), measuring CBR for multiple carriers, and determining the optimal carrier based on these thresholds to ensure efficient resource allocation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple carriers are used in V2X systems to improve data transmission reliability, then transmission reliability is improved, but carrier selection complexity increases

Engineering Contradiction:
Improvedata transmission reliabilityVSAvoidcarrier selection complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies parameter changes by using CBR threshold values as decision criteria to select transmission carriers. The terminal compares measured CBR values against predefined thresholds (first threshold and second threshold) to determine carrier selection, transforming the complex carrier selection problem into a parameter-based decision process that simplifies the terminal's operation while maintaining reliable data transmission across multiple carriers

Inventive Principle:
Principle #35Parameter changes

2Productivity

If CBR measurement for multiple carriers is performed to ensure reliable resource allocation, then resource allocation efficiency is improved, but measurement time increases

Engineering Contradiction:
Improveresource allocation efficiencyVSAvoidmeasurement time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by configuring multiple CBR threshold values in advance before the actual carrier selection process. The terminal stores these pre-configured thresholds (first threshold and second threshold) and uses them during CBR measurement to quickly determine carrier selection without performing complex real-time calculations, thus improving resource allocation efficiency while minimizing measurement time

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12382432B2Method and apparatus for selecting carrier in wireless communication system
Publication Date: 2025.08.05 SAMSUNG ELECTRONICS CO LTD
  • US12382432B2 patent drawing
  • US12382432B2 patent drawing
  • US12382432B2 patent drawing

AI summary

The present disclosure relates to 5G (5th generation) or pre-5G communication systems to support the higher data rate after 4G (4th generation) communication systems such as LTE (Long Term Evolution). The present disclosure provides an apparatus and a method for effectively selecting a transmission carrier in a wireless communication system. The present disclosure relates to an operating method of a terminal in a wireless communication system, which including receiving configuration information from a base station and selecting a transmission carrier and a resource pool on the basis of the configuration information.