Radio Link Connection in Wireless Private Network Cells

Solution Overview

Problem

In wireless communication systems, mobile terminals face significant time delays and increased power consumption when selecting a suitable cell after failing to connect a radio link, as they must measure signal strengths for all cells, including intra-frequency and inter-frequency cells.

Innovation Solution

The method involves prestoring radio link connection information for overlapping public cells, using a timer to detect radio link failures, and selecting a suitable cell based on this stored information, thereby reducing the need for extensive measurements and minimizing power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the mobile terminal measures signal strengths for all cells including intra-frequency and inter-frequency cells, then the cell selection reliability is improved, but the cell selection time and power consumption increase significantly

Engineering Contradiction:

Improvecell selection reliabilityVSAvoidcell selection time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by pre-storing radio link connection information for overlapping public cells before radio link failure occurs. When failure happens, the terminal can directly use this pre-stored information for rapid cell selection without performing extensive measurements, thus resolving the contradiction between reliability and selection time.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent extracts only the necessary radio link connection information for overlapping public cells and stores it in advance, rather than measuring all cells. This selective extraction of needed information reduces measurement overhead while maintaining reliable cell selection capability.

Inventive Principle:

Principle #2Taking out (Extraction)

2Reliability

If the mobile terminal measures signal strengths for all cells including intra-frequency and inter-frequency cells, then the cell selection reliability is improved, but the power consumption increases significantly

Engineering Contradiction:

Improvecell selection reliabilityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent applies preliminary action by pre-storing radio link connection information for overlapping public cells before radio link failure occurs. When failure happens, the terminal can directly use this pre-stored information for rapid cell selection without performing extensive measurements, thus resolving the contradiction between reliability and power consumption.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent performs partial measurement by only measuring overlapping public cells that have pre-stored information, rather than measuring all cells. This partial action is sufficient for reliable cell selection while significantly reducing power consumption compared to exhaustive measurement of all cells.

Inventive Principle:

Principle #16Partial or excessive action

3Loss of time

If the terminal uses pre-stored radio link connection information for cell selection, then the cell selection time and power consumption are reduced, but the adaptability to changing channel conditions may be compromised

Engineering Contradiction:

Improvecell selection timeVSAvoidadaptability to channel conditions

Core Design Contradiction:

Loss of timeVSAdaptability or versatility

Solution Approach 1:

The patent performs partial measurement by only measuring overlapping public cells that have pre-stored information, rather than measuring all cells. This partial action is sufficient for reliable cell selection while significantly reducing power consumption compared to exhaustive measurement of all cells.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS8700043B2Apparatus and method for connecting radio link in wireless communication system having private network cell

Publication Date: 2014.04.15 SAMSUNG ELECTRONICS CO LTD

AI summary

Disclosed is a method of connecting a radio link of a UE in a wireless communication system including a first cell and a second cell partially or completely overlapping the first cell, the method including the steps of, when the UE fails in connecting a radio link to the first cell for a given time, performing measurement for the second cell by using prestored radio link connection information for the second cell; and if a result of the measurement satisfies given cell selection conditions, selecting the second cell.