Radio Base Station Blockade Control via Coordinated Power Adjustment
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Solution Overview
Problem
Conventional radio communication systems experience service quality deterioration during blockade processing, where ongoing calls are forcefully disconnected and communication areas become unavailable, leading to poor service coverage and quality.
Innovation Solution
A radio communication system where a first radio base station reduces transmission power while neighboring base stations increase theirs, with coordinated power adjustments and notifications to maintain service quality by preventing disconnection and expanding coverage areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the radio base station performs blockade processing to turn off transmission power for maintenance, then the maintenance can be performed, but the communication service quality deteriorates and coverage areas become unavailable
Solution Approach 1:
The system performs preliminary actions by notifying neighboring base stations before the actual blockade processing begins. The notification includes advance information about the upcoming transmission power reduction, allowing neighboring base stations to prepare for potential handovers and maintain coverage continuity during the maintenance period.
Solution Approach 2:
The notification mechanism acts as an intermediary between the blockaded base station and neighboring base stations. It transmits critical information about the blockade processing to neighboring base stations, enabling coordinated response and maintaining service quality through collaborative action rather than isolated disruption.
2Reliability
If the radio base station waits for ongoing calls to terminate before turning off transmission power, then call completion is ensured, but the blockade processing time is extended
Solution Approach 1:
The system notifies neighboring base stations in advance of the blockade processing, allowing them to prepare for potential call handovers before the transmission power is actually reduced. This preliminary coordination enables the blockaded base station to turn off power more quickly while still ensuring call completion, reducing overall processing time.
3Loss of time
If the radio base station forcefully disconnects ongoing calls after a predetermined time period, then the blockade processing can be completed, but the communication service quality deteriorates
Solution Approach 1:
The notification to neighboring base stations serves as an intermediary mechanism that coordinates the blockade processing with ongoing calls. By informing neighboring base stations in advance, the system can manage call handovers more smoothly, reducing the need for forceful disconnection and maintaining service quality while still completing the blockade processing within acceptable time frames.
4Adaptability or versatility
If the radio terminal makes a request to accept a new call to a different radio base station when the current base station is blockaded, then new calls can be established, but the communication quality may be deteriorated due to distance
Solution Approach 1:
The system performs preliminary notification to neighboring base stations before the blockade begins, allowing them to prepare their transmission parameters and coverage areas. This advance preparation enables smoother handovers and maintains communication quality even when terminals need to connect to neighboring base stations during the blockade.
Data Source
AI summary
A radio base station (1), which is to be pre-blockaded, transmits a pre-blockade initiate notification to radio base stations (2A-2F) neighboring the radio base station (1). Further, the radio base station (1) reduces the transmission power thereof at a predetermined reduction rate at a initiation time of the pre-blockade. Meanwhile, each of the radio base stations (2A-2F) receives the pre-blockade initiate notification and increases the transmission power at a predetermined increase rate at the initiation time of the pre-blockade, the absolute value of predetermined increase rate being equal to that of the predetermined reduction rate at the radio base station (1).