Terminal Radio Frame Adaptation for FR3 and FR4 Bands
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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 modulation methods and subcarrier spacings specific to a frequency band, enabling efficient communication by applying these determinations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing wireless communication systems are used for new frequency bands, then system compatibility is maintained, but radio frame structure parameters (channel bandwidths, waveforms, subcarrier spacings) are not optimized for the new bands
Solution Approach 1:
The patent applies parameter changes by defining specific channel bandwidths, waveforms, and subcarrier spacings for new frequency bands (FR3 and FR4). This resolves the contradiction by adapting the radio frame structure parameters to suit the characteristics of new bands while maintaining system compatibility through standardized parameter definitions.
2Quantity of substance
If new frequency bands (FR3, FR4) are deployed to improve traffic capacity, then bandwidth capacity is increased, but radio frame structure must be redefined
Solution Approach 1:
The patent segments the frequency spectrum into distinct ranges (FR3: 3 GHz-10 GHz, FR4: 10 GHz-100 GHz) and defines appropriate radio frame structure parameters for each segment. This allows each frequency band to be optimized independently while maintaining overall system coherence, resolving the contradiction between expanding bandwidth capacity and managing structure definition complexity.
Data Source
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AI summary
A terminal includes: a control unit configured to determine modulation methods and subcarrier spacings 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 modulation methods and the subcarrier spacings. The control unit determines the supported modulation methods for downlink and for uplink and determines a combination of the supported subcarrier spacings.