Communication Control Device Interference Margin Management
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Solution Overview
Problem
The existing frequency management databases face a high operational load due to periodic exchanges of information, leading to inconvenience when communication devices need to quickly start operations despite interference, as they must wait until the next scheduled period for permission, resulting in increased recalculation loads and potential interference control complexities.
Innovation Solution
A communication control device and method that reduce the recalculation load of interference control by setting three types of margins: allocation margin, arbitrary extra margin, and common extra margin, allowing flexible operation of secondary systems within the wireless system, thereby minimizing interactions and calculations between databases during periodical exchanges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If real-time management is performed by exchanging individual information recorded in the frequency management databases as appropriate, then the operation speed and responsiveness of the system is improved, but the operational load on the databases increases significantly
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing interference margins in the database before actual communication occurs. The database pre-computes the interference margin based on historical data and system parameters, so that when a communication device requests permission, the decision can be made quickly without performing complex real-time calculations, thus resolving the contradiction between fast operation and high computational load
2Power
If the exchange of information between databases is performed periodically, then the operational load on the databases is reduced, but the communication device must wait until the next scheduled period for permission even when interference conditions have changed
Solution Approach 1:
The patent implements feedback by having communication devices report their actual measured interference levels back to the database. The database uses this feedback information to dynamically adjust interference margins and make real-time permission decisions. This allows the system to maintain low operational load through periodic updates while enabling quick response to changing conditions through feedback-based adaptive control
3Reliability
If the database performs interference control recalculation frequently to accommodate changes in wireless system operation states, then the accuracy and reliability of interference control is improved, but the recalculation load and system complexity increases
Solution Approach 1:
The patent applies parameter changes by introducing an interference margin parameter that is pre-calculated and stored in the database. Instead of performing complex recalculation of interference control every time conditions change, the system adjusts the interference margin parameter based on reported actual interference levels. This simple parameter adjustment maintains reliable interference control while avoiding the complexity of frequent recalculation
Data Source
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AI summary
[Problem] A communication control device is provided. The communication control device can reduce a recalculation load of interference control that may occur due to a change in an operation state of a wireless system within a time interval between periodical exchanges of information between databases in secondary use by the wireless system. [Solutio] A communication control device is provided. The communication control device includes a controller that sets an acceptable interference amount of a primary system that is acceptable by a secondary system that secondarily uses a radio wave in a predetermined frequency band allocated to the primary system. In the setting of the acceptable interference amount, the controller sets a first margin to be allocated to the secondary system that is operating, a second margin that absorbs a change in the first margin that has been caused by a change in the total number of secondary systems, and a third margin to be commonly set between the communication control device and another communication control device.