Terminal Bandwidth Selection for FR3 and FR4 Frame Structure
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Solution Overview
Problem
The challenge of determining the radio frame structure in new frequency bands, such as FR3 and FR4, is not adequately addressed in existing wireless communication systems, necessitating the definition of channel bandwidths, waveforms, and subcarrier spacings to support efficient communication.
Innovation Solution
A terminal is equipped with a control unit to determine channel bandwidths, waveforms, and subcarrier spacings specific to the frequency band, enabling efficient communication by applying these parameters in FR3 and potentially FR4.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing wireless communication systems are used for new frequency bands, then communication in established bands is maintained, but the radio frame structure for new frequency bands (FR3, FR4) is not adequately addressed
Solution Approach 1:
The patent defines specific channel bandwidth parameters for new frequency bands FR3 and FR4, establishing that the maximum channel bandwidth for FR3 is 100 MHz and for FR4 is 200 MHz. These parameter definitions resolve the contradiction by adapting the system to new frequency bands while maintaining reliable, well-defined radio frame structures through standardized parameter specifications.
2Adaptability or versatility
If channel bandwidths are determined from a certain frequency width range, then flexibility in bandwidth selection is improved, but determination accuracy for specific bandwidth values deteriorates
Solution Approach 1:
The patent segments the frequency bands into distinct ranges (FR3 with maximum 100 MHz, FR4 with maximum 200 MHz) and defines specific channel bandwidth values for each segment. This segmentation approach provides flexibility within each band while maintaining precise determination of allowable bandwidth values through explicit specifications.
Solution Approach 2:
The patent establishes specific parameter values for channel bandwidths in different frequency ranges, defining maximum values of 100 MHz for FR3 and 200 MHz for FR4. This parameter standardization resolves the contradiction by providing both flexibility in selection within defined ranges and precision through explicit maximum value specifications.
Data Source
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AI summary
A terminal includes: a control unit configured to determine channel bandwidths that are supported in a specific frequency band; and a communication unit configured to perform communications in the specific frequency band by applying the determined channel bandwidths. The control unit determines the channel bandwidths from a certain frequency width range, determines the channel bandwidths that are less than a certain frequency width, or determines the channel bandwidths that exceed a certain frequency width.