Communication Device Spectrum Sensing Adaptation
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Solution Overview
Problem
Devices struggle to accurately sense the surrounding communication environment for secondary usage of a spectrum, leading to potential adverse effects on primary communication services, and existing methods increase processing load when multiple devices sense the environment uniformly.
Innovation Solution
A communication device with a detection unit, data acquisition unit, and determination unit that senses or receives data on the communication environment based on the state of communication connection with a server, allowing for efficient determination of secondary usage availability by adjusting sensing methods and data acquisition ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple devices uniformly sense the surrounding communication environment to determine secondary usage availability, then the sensing accuracy and reliability improve, but the processing load and energy consumption increase significantly
Solution Approach 1:
The patent divides the sensing task into two segments: a first device performs comprehensive sensing to generate environment data, while a second device receives and processes this data to determine secondary usage availability. This segmentation allows the sensing function to be distributed, reducing the processing load on individual devices while maintaining reliable determination through collaborative operation.
Solution Approach 2:
The patent introduces an intermediary mechanism where the first device acts as a sensing node that collects and processes communication environment data, then transmits this data to the second device. This intermediary approach allows the second device to make accurate availability determinations without performing the computationally intensive sensing operations itself, thereby reducing its processing load while maintaining reliability.
2Measurement precision
If a device performs comprehensive sensing of the communication environment by itself, then the determination accuracy improves, but the device cannot always accurately sense the environment due to limitations in standalone sensing capability
Solution Approach 1:
The patent merges the sensing capabilities of multiple devices by having the first device collect environment data and the second device process this data for availability determination. This combination allows the system to overcome the limitations of standalone sensing, achieving both accurate measurement and reliable determination through collaborative operation between devices.
Solution Approach 2:
The patent implements a feedback mechanism where the first device provides sensed environment data to the second device, which then uses this feedback information to make informed availability determinations. This feedback loop ensures that the determination process is based on accurate, real-time sensing data collected by specialized sensing nodes, improving both measurement precision and determination reliability.
3Measurement precision
If devices acquire communication environment data from a server through communication connection, then the data accuracy improves, but the system becomes dependent on server availability and communication infrastructure
Solution Approach 1:
The patent implements a dynamic data acquisition approach where devices can switch between receiving data from a server via communication connection and acquiring data through local sensing operations. This dynamic adaptability allows the system to maintain data accuracy through server data when available, while also ensuring operational independence when server connection is unavailable, thereby balancing measurement precision with system versatility.
Data Source
AI summary
There is provided a communication device comprising: a detection unit that detects presence or absence of communication connection with a server storing data related to a communication environment of a communication area where a first communication service is provided; a data acquisition unit that acquires data related to a surrounding communication environment; and a determination unit that determines availability of usage of a second communication service using a part or whole of a spectrum assigned to the first communication service based on the data acquired by the data acquisition unit, wherein when communication connection with the server is not detected by the detection unit, the data acquisition unit senses a communication environment surrounding the communication device or receives data related to a communication environment from another communication device located near the communication device.