TVWS Device Availability Check via Time Parameter
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Solution Overview
Problem
The inefficiency of government-driven frequency allocation in television white space (TVWS) networks leads to frequency depletion, especially with the rise of radio data traffic and complex communication systems, necessitating a method to check the availability of peer entities to prevent resource waste.
Innovation Solution
A method for checking the availability of TVWS devices and management devices through registration requests and check request messages with a time parameter, determining availability based on response times to optimize resource allocation and prevent resource waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If frequency sharing schemes are implemented to solve frequency depletion, then frequency utilization efficiency is improved, but the complexity of detecting and measuring peer entity availability increases
Solution Approach 1:
The system performs preliminary registration of peer entities before actual communication. The management device receives registration requests from TVWS devices and maintains a registration table, thereby pre-establishing knowledge of available peer entities. This preliminary action enables efficient frequency sharing by preventing communication attempts with unavailable devices, thus improving frequency utilization without requiring complex real-time detection during communication.
Solution Approach 2:
The system implements a feedback mechanism where TVWS devices send registration requests to the management device, which then provides feedback by updating the registration table. This feedback loop allows the network to maintain current information about peer entity availability, enabling efficient frequency sharing while keeping detection complexity manageable through structured information exchange.
2Ease of operation
If TVWS devices attempt communication procedures with peer entities regardless of session state, then communication procedures are simplified, but frequency and power resources are wasted
Solution Approach 1:
The system performs preliminary registration of peer entities before actual communication. The management device receives registration requests from TVWS devices and maintains a registration table, thereby pre-establishing knowledge of available peer entities. This preliminary action enables efficient frequency sharing by preventing communication attempts with unavailable devices, thus improving frequency utilization without requiring complex real-time detection during communication.
Solution Approach 2:
The system dynamically updates the registration table when TVWS devices register or unregister. This dynamic maintenance of availability information allows the network to adapt to changing device states, enabling simple communication procedures by consulting the current registration status before initiating communication, thereby avoiding waste of power and frequency resources on unavailable devices.
Data Source
AI summary
A method for checking availability of one of Television White Space (TVWS) devices by a management device for managing the TVWS devices to co-exist in a TVWS according to one embodiment of the present invention can comprise the following steps: receiving a registration request message for registering the TVWS device or updating the registration of the TVWS device from the TVWS device; registering the TVWS device or updating the registration of the TVWS device; transmitting a check request message for checking the availability of the TVWS device to the TVWS device after registering the TVWS device or updating the registration of the TVWS device, the check request message including a time parameter; and determining the availability of the TVWS device on the basis of the time parameter.