Base Station Restricted Mode for Wireless Interference
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Solution Overview
Problem
Existing methods for enhancing communication resource utilization efficiency in wireless communication networks, such as those described in NPL 1, still face challenges in effectively managing radio communication apparatus assignments to base stations, leading to inefficiencies like the exposed node and deafness problems.
Innovation Solution
A base station device and communication control system that switch to a restricted mode based on information about radio communication apparatus assignments, lowering the priority level for assignment and preventing mutual interference by directing connections to base stations with non-restricted settings, thereby concentrating wireless connections on base stations with optimal settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a base station device operates in a standard mode accepting all connection requests, then the availability of communication services is improved, but the interference with other base stations in overlapping coverage areas increases
Solution Approach 1:
The base station dynamically switches between standard mode and restricted mode based on real-time assignment information received from other base stations. This dynamic adaptation allows the system to optimize between service availability and interference reduction by adjusting the base station's acceptance behavior according to the current network state
Solution Approach 2:
The system implements a feedback mechanism where base stations exchange assignment information about radio communication apparatuses in overlapping coverage areas. This feedback loop enables each base station to make informed decisions about mode switching, ensuring that service availability is maintained while coordinating with neighboring base stations to minimize interference
2Object-generated harmful factors
If the base station device switches to restricted mode to reduce interference, then the harmful interference effects are reduced, but the complexity of the control mechanism increases
Solution Approach 1:
The system introduces a base station management device as an intermediary that coordinates the restricted mode operations. This mediator simplifies the control complexity by centralizing the decision-making logic for mode switching, where the management device processes assignment information and generates appropriate control signals for participating base stations
Solution Approach 2:
The complex control logic for managing restricted mode operations is extracted from individual base stations and placed in a dedicated base station management device. This separation allows base stations to focus on their primary communication function while the management device handles the complexity of coordination and mode management
3Ease of operation
If radio communication apparatuses are allowed to connect to any base station in coverage area, then the ease of connection is improved, but the utilization efficiency of communication resources deteriorates
Solution Approach 1:
The system applies different connection policies to different spatial locations by implementing restricted mode in specific base stations based on their coverage overlap and current assignment status. This local differentiation allows the network to optimize resource utilization in interference-prone areas while maintaining easy connection availability in other areas
Data Source
AI summary
This base station device is provided with: receiving means for receiving first information indicating that a radio communication apparatus has been assigned to another base station device present in a radio wave coverage area where communication with the base station device is possible; and control means for switching, based on the first information, a setting of the base station device to a restricted mode, wherein the restricted mode is a setting according to which the base station device receives, from at least one of the another base station device and a radio communication apparatus having issued a connection request, second information indicating that a response to the connection request issued by the radio communication apparatus has been issued by the another base station device, and performs, based on the second information, an operation for lowering a priority level for assignment to the base station device.