Wireless Link Selection Using Interference-Corrected Performance

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing communication systems with multiple wireless sections face instability due to interference between radio sections, which current methods fail to adequately address.

Innovation Solution

A communication system that calculates and corrects communication-time performance parameters based on interference levels between wireless links, allowing for optimal link selection to stabilize wireless communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple wireless links are used in a communication apparatus, then communication versatility and capacity are improved, but interference between radio sections occurs causing communication instability

Engineering Contradiction:

Improvewireless link selection capabilityVSAvoidcommunication stability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent implements a feedback mechanism where the communication apparatus measures communication performance parameters (such as received power, error rate, or signal quality) on each wireless link, uses these measurements to calculate interference levels, and then selects wireless links based on this feedback information. This closed-loop approach enables the system to adapt to interference conditions and maintain reliable communication while utilizing multiple wireless links.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent changes the parameter used for wireless link selection from simple signal strength measurement to a calculated interference level derived from communication performance parameters. By transforming the selection criterion based on measured performance data, the system can identify and avoid wireless links suffering from mutual interference, thus maintaining both versatility and reliability.

Inventive Principle:

Principle #35Parameter changes

2Device complexity

If traditional channel selection methods are used, then implementation simplicity is maintained, but interference between wireless sections within the same apparatus is not adequately considered

Engineering Contradiction:

Improvechannel selection processVSAvoidinterference consideration accuracy

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent performs preliminary measurement of communication performance parameters on wireless links before final link selection. By预先 measuring parameters such as received power or error rate on candidate wireless links and calculating interference levels based on these measurements, the system prepares interference information in advance to guide the selection process, avoiding the need for complex real-time calculations during link establishment.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS12538178B2Communication system, communication device, wireless link selection method

Publication Date: 2026.01.27 NEC CORP

AI summary

A communication system including a processor, which acquires a communication-time performance parameter and a non-communication-time performance parameter for each of a first wireless link and a second wireless link, calculates a degree of interference based on the communication-time performance parameter and the non-communication-time performance parameter of the second wireless link, corrects the communication-time performance parameter in accordance with a bandwidth which is identified based on the degree of interference, and selects a wireless link to be used for communication from among the first wireless link and the second wireless link, based on the corrected communication-time performance parameter.