LTE Base Station Load Information Transmission Control

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

The existing method for coverage adjustment in LTE radio communication systems, based on load information exchange between radio base stations, increases the load on the backhaul transmission path, leading to inefficiencies.

Innovation Solution

A radio communication system where radio base stations adjust their coverage based on their own and neighboring stations' load levels, with controlled transmission of load information only when the load is below a threshold, reducing unnecessary data exchange and thus the load on the transmission path.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If load information is constantly exchanged between radio base stations for coverage adjustment, then coverage optimization is improved, but the load on the backhaul transmission path increases

Engineering Contradiction:

Improvecoverage optimizationVSAvoidload on transmission path

Core Design Contradiction:

Adaptability or versatilityVSLoss of energy

Solution Approach 1:

The patent implements periodic action by having radio base stations transmit load information only at specific intervals or under specific conditions (when load exceeds a threshold) rather than continuously. This reduces the frequency of transmissions on the backhaul while still providing sufficient information for coverage optimization, thereby reducing transmission path load while maintaining optimization effectiveness

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The patent extracts only the necessary load information that is relevant for coverage optimization decisions and transmits only this specific information between base stations. By filtering and transmitting only essential data rather than all possible information, the transmission path load is reduced while still enabling effective coverage adjustment

Inventive Principle:

Principle #2Taking out (Extraction)

2Measurement precision

If load information is transmitted frequently between radio base stations, then load balancing accuracy is improved, but transmission path load increases

Engineering Contradiction:

Improveload balancing accuracyVSAvoiddata transmission volume

Core Design Contradiction:

Measurement precisionVSQuantity of substance

Solution Approach 1:

The patent applies parameter changes by dynamically adjusting the transmission frequency and content of load information based on current network conditions and load thresholds. When load conditions change significantly or exceed thresholds, more frequent or detailed information is transmitted; otherwise, transmissions are reduced. This adapts the data transmission volume to actual needs, maintaining load balancing accuracy while minimizing unnecessary transmissions

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS8812010B2Radio communication system, radio base station, and communication control method

Publication Date: 2014.08.19 KYOCERA CORP

AI summary

A radio base station (eNB10-1) transmits a Resource Status Update message including first load information indicating the load level thereof to a radio base station (eNB10-2) when the load level thereof is less than a first threshold, and omits the transmission of the Resource Status Update message including the first load information when the load level thereof is the first threshold or more.