Secondary System Database Registration for TVWS Interference Control
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Solution Overview
Problem
The lack of a registration process for secondary systems in the cognitive radio technology leads to interference between secondary systems and the master system, making it difficult to track the source of interference and coordinate the use of TVWS, resulting in reduced network performance.
Innovation Solution
A method and system for secondary systems to register in a database, which involves sending a registration request with necessary parameters, processing the registration, and assigning a unique registration code, ensuring the system is authorized and does not interfere with the master system, allowing for effective coordination and interference reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If secondary systems opportunistically occupy spectrum resources without registration, then spectrum utilization is improved, but interference control and source tracking become difficult
Solution Approach 1:
The patent implements a registration mechanism where secondary systems must register with the database before occupying spectrum resources. This preliminary action records the identity, location, and operational parameters of secondary systems, enabling later interference source tracking and coordination while maintaining efficient spectrum utilization through authorized opportunistic access.
2Ease of operation
If multiple secondary systems operate without coordination, then access to TVWS is simplified, but interference between secondary systems increases
Solution Approach 1:
The patent establishes a feedback mechanism where the database stores registration information of all secondary systems and provides this information to each secondary system. This enables secondary systems to receive feedback about other systems operating in the same area, allowing them to adjust their operations to avoid interference while maintaining easy access through automated database queries.
3Reliability
If a registration process is implemented for secondary systems, then interference source tracking is improved, but system complexity increases
Solution Approach 1:
The patent introduces a centralized database as an intermediary between secondary systems and the master system. The database handles all registration, information storage, and coordination functions, simplifying the complexity for individual secondary systems while enabling comprehensive interference source tracking. The database acts as a mediator that manages the registration process and provides necessary information to all parties.
Data Source
AI summary
A method, apparatus and system for a secondary system registering in a database, the method includes: a database receiving a registration request sent by a secondary system; and the database processing the registration of the secondary system. A database device includes: a receiving module, a registration processing module and a sending module; the secondary system includes: a network element device, a reconfiguration management node and a registration requesting module.