Base Station Cell Adjustment via Position-Based Power Control
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Solution Overview
Problem
In disaster-stricken or poor communication environments, existing base stations face challenges in suppressing radio wave interference when multiple base stations are used together, making it difficult to maintain effective communication coverage.
Innovation Solution
A base station system that includes position information acquisition, state information sharing, decision-making, and cell adjustment units, allowing adjacent base stations to autonomously adjust transmission power and radio wave directivity to minimize interference by sharing position and state information, thereby optimizing cell coverage without prior precise calculations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple base stations are deployed in disaster-stricken or poor communication environments, then communication coverage is improved, but radio wave interference between base stations increases
Solution Approach 1:
The base station performs autonomous cell formation by acquiring position information of peripheral base stations, calculating transmission power based on this information, and adjusting its own transmission power accordingly. This feedback mechanism allows the base station to adapt to the radio wave environment created by other base stations and suppress interference while maintaining communication coverage.
Solution Approach 2:
The base station autonomously determines its own transmission power by acquiring position information of other base stations, calculating appropriate power levels, and adjusting its own settings without requiring manual configuration or external control. This self-service capability enables rapid deployment in disaster-stricken areas where precise installation is not feasible.
2Ease of operation
If autonomous cell formation is performed using address assignment rules, then base station setup is simplified, but radio wave interference suppression capability is insufficient
Solution Approach 1:
The base station dynamically adjusts its transmission power based on real-time position information of other base stations. Instead of using fixed address assignment rules alone, the system continuously adapts transmission power levels to the current radio wave environment, enabling both easy setup and effective interference suppression.
Solution Approach 2:
The base station changes the transmission power parameter based on acquired position information of other base stations. By calculating appropriate power levels from position data and adjusting this key parameter, the system achieves both simplified autonomous setup and effective interference suppression.
Data Source
AI summary
The base station includes: a position information acquisition unit that acquires position information of the base station; a state information sharing unit that shares the position information of the base station and state information including a transmission power amount and a radio wave directivity of the base station with adjacent base stations, and acquires position information of the adjacent base station and state information of the adjacent base station; a decision unit that decides whether cell adjustment is necessary, based on position information and acquired state information of the adjacent base station, position information and acquired state information of the base station; a calculation unit that calculates a transmission power amount or a radio wave directivity of the base station when cell adjustment is necessary; and a cell adjustment unit that adjusts a cell by changing to the calculated transmission power amount or radio wave directivity.