Base Station Load Balancing via Weighted Inter-Station Data
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Solution Overview
Problem
In mobile communication systems, existing MLB technologies fail to adequately balance loads between base stations, leading to insufficient service quality when the load of a neighboring base station increases due to radio terminals moving from adjacent cells, as they do not consider the load of next neighboring base stations effectively.
Innovation Solution
A mobile communication system that includes a first base station, a second base station adjacent to the first, and at least one third base station, where the second base station transmits weighted load information of itself to the first base station using load information from the third base station, allowing for communication control that considers the potential load of the next neighboring base station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a base station reduces coverage based on low neighboring base station load, then the load of the self base station is reduced, but the service quality deteriorates when the neighboring base station load increases due to radio terminals moving from next neighboring cells
Solution Approach 1:
The patent applies preliminary action by having the second base station pre-weight its load information using the load information of the third base station (next neighboring base station) before transmitting to the first base station. This allows the first base station to make proactive load balancing decisions that anticipate future load changes, thereby maintaining service quality while avoiding the complexity of real-time reactive adjustments.
Solution Approach 2:
The patent uses the load information of the third base station (next neighboring base station) as an intermediary to influence the load balancing decisions between the first and second base stations. By weighting the second base station's load information with the third base station's load data, the system indirectly accounts for potential load migrations from beyond the immediate neighborhood, resolving the contradiction between simple control and service quality.
2Productivity
If load information from next neighboring base stations is not considered, then the communication control is simple, but the load balancing effectiveness deteriorates when radio terminals move from adjacent cells
Solution Approach 1:
The patent extracts only the necessary load information from the third base station (next neighboring base station) and uses it to weight the load information of the second base station. This selective extraction approach improves load balancing effectiveness by incorporating relevant future load indicators while avoiding the complexity of transmitting and processing complete load information from all neighboring base stations.
Solution Approach 2:
The patent changes the parameter representation of load information by applying weighting factors. Instead of transmitting raw load information from the second base station, the system transforms it into weighted load information that incorporates the third base station's load status. This parameter transformation improves productivity by enabling more accurate load balancing decisions without increasing the fundamental complexity of the information transmission mechanism.
Data Source
AI summary
A mobile communication system capable of communication control on the basis of load information transmitted/received between base stations by using inter-base-station communication, comprises: a base station eNB1; a base station eNB2 adjacent to the base station eNB1; and at least one base station eNB3 adjacent to the base station eNB2, wherein after receiving load information 3 of the base station eNB3 from the base station eNB3, the base station eNB2 transmits, to the base station eNB1, load information 2 of the base station eNB2 weighted by using the load information 3 of the base station eNB3.