Server-Based Frequency Band Coordination for Heterogeneous Access Point Coexistence
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Solution Overview
Problem
Heterogeneous communication systems face challenges in coexisting due to differences in frequency bands, making it difficult to find idle frequency bands for efficient communication, especially with the increasing demand for wireless data traffic and depletion of frequency resources.
Innovation Solution
A method and system that enable different types of access points to coexist by receiving frequency information, generating and transmitting available frequency bands, and registering access points, using a server to manage and provide information for coexistence, including operating channels and transmit power limitations, to facilitate shared use of radio resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heterogeneous communication systems use different frequency bands, then each system can operate independently with excellent communication performance, but it becomes very difficult to find idle frequency bands and systems cannot coexist efficiently
Solution Approach 1:
The patent introduces a server as an intermediary that manages frequency band information for multiple heterogeneous communication systems. The server receives frequency information from broadcast database servers, determines available frequency bands considering multiple systems' requirements, and provides this information to access points. This mediator enables systems using different frequency bands to coexist by coordinating their operations through centralized information management.
2Reliability
If frequency resources are allocated in a fixed manner to provide excellent communication techniques and services, then communication quality is improved, but frequency resources become severely depleted
Solution Approach 1:
The patent implements dynamic frequency band determination by having access points receive available frequency band information from the server and adapt their operations accordingly. Instead of fixed frequency allocation, the system dynamically identifies and utilizes idle frequency bands based on current conditions, allowing the same frequency resources to serve multiple purposes at different times and locations, thereby preventing severe depletion while maintaining communication quality.
3Adaptability or versatility
If cognitive radio technology is applied to TV white space with centralized management, then frequency sharing is improved, but it is difficult to implement in heterogeneous communication systems that use different frequency bands
Solution Approach 1:
The patent applies cognitive radio technology to heterogeneous systems by introducing a server as an intermediary that centralizes the complex task of frequency band determination. Instead of requiring each access point in heterogeneous systems to independently perform complex cognitive radio functions across different frequency bands, the server consolidates this functionality, receiving frequency information from multiple broadcast database servers and providing simplified available band information to access points, thereby enabling frequency sharing while managing implementation complexity.
Data Source
AI summary
Disclosed is a method for providing information for enabling different types of access points to coexist. The information providing method includes: receiving frequency information for broadcasting from a broadcast database server; obtaining information regarding different types of access points located in a certain area; generating information regarding one or more frequency bands that may be used by the different types of access points located in the certain area based on the frequency information for a broadcast; and transmitting information regarding the one or more available frequency bands to the different types of access points.