Multi-Carrier Cell Reselection Threshold Configuration

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Solution Overview

Problem

In cellular mobile communication, user equipment (UE) in a multi-carrier serving cell faces challenges in determining when to perform cell reselection across multiple carriers, as existing methods only consider a single carrier's signal quality, leading to inefficient power management and communication processes.

Innovation Solution

The method involves sending reselection configuration information from an access network device to the UE, which includes multiple reselection thresholds for different carriers, allowing the UE to evaluate signal quality and perform cell reselection based on these thresholds, thereby improving flexibility and reliability in multi-carrier scenarios.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the UE monitors signal quality of multiple carriers to determine cell reselection, then the reliability of cell reselection is improved, but the power consumption increases

Engineering Contradiction:
Improvecell reselection reliabilityVSAvoidUE power consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent segments the cell reselection process by introducing separate reselection thresholds for different carriers (first reselection threshold for first carrier, second reselection threshold for second carrier). This allows the UE to evaluate each carrier independently against its specific threshold, improving reliability through comprehensive multi-carrier evaluation while enabling power optimization by allowing early termination when thresholds are not met.

Inventive Principle:
Principle #1Segmentation

2Use of energy by moving object

If the UE performs cell reselection based on single carrier signal quality, then the power consumption is reduced, but the adaptability to multi-carrier scenarios deteriorates

Engineering Contradiction:
ImproveUE power consumptionVSAvoidmulti-carrier scenario adaptability
Core Design Contradiction:
Use of energy by moving objectVSAdaptability or versatility

Solution Approach 1:

The patent applies local quality by assigning different reselection thresholds to different carriers based on their specific characteristics. The first reselection threshold is configured for the first carrier and the second reselection threshold for the second carrier, allowing each carrier to have optimized evaluation criteria suited to its local conditions, thereby improving multi-carrier adaptability without requiring uniform monitoring of all carriers.

Inventive Principle:
Principle #3Local quality

3Adaptability or versatility

If the access network device configures multiple reselection thresholds for different carriers, then the flexibility of cell reselection is improved, but the device complexity increases

Engineering Contradiction:
Improvecell reselection flexibilityVSAvoidaccess network device complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements universality by designing a standardized reselection configuration mechanism that can be applied across multiple carriers. The access network device uses a unified approach to configure reselection thresholds for different carriers through standard signaling messages, allowing the same basic framework to handle multi-carrier scenarios without requiring complex carrier-specific processing logic.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS20240340732A1Cell re-selection configuration method and apparatus, and communication device and storage medium
Publication Date: 2024.10.10 BEIJING XIAOMI MOBILE SOFTWARE CO LTD
  • US20240340732A1 patent drawing
  • US20240340732A1 patent drawing
  • US20240340732A1 patent drawing

AI summary

A cell reselection configuration method is performed by an access network device of a multi-carrier cell, and includes: sending reselection configuration information of the multi-carrier cell, wherein the reselection configuration information at least indicates at least one reselection threshold for a user equipment (UE) to perform cell reselection.