Bandwidth Capability Reporting in Multi-Band Terminals
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Solution Overview
Problem
Current bandwidth capability designs in multi-band communications systems lack flexibility, as they often require a uniform minimum threshold for all frequency bands, which can lead to reduced resource configuration flexibility and increased design complexity.
Innovation Solution
A method where terminals report bandwidth capability information to radio access network nodes, with thresholds determined based on maximum bandwidth capabilities or subcarrier spacings, allowing for dynamic resource allocation and ensuring signal transmission reliability across different frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a uniform minimum threshold is applied for bandwidth capability across all frequency bands, then system simplicity is maintained, but resource configuration flexibility is reduced
Solution Approach 1:
The patent applies local quality by allowing different minimum threshold values for bandwidth capability in different frequency bands. Specifically, the first minimum threshold value applies to a first frequency band while a second minimum threshold value applies to a second frequency band, where these threshold values can differ. This enables the system to optimize resource configuration for each frequency band's specific characteristics without imposing a one-size-fits-all constraint, thereby improving resource configuration flexibility while maintaining manageable design complexity through structured differentiation.
2Reliability
If bandwidth capability threshold is increased to ensure signal transmission reliability, then transmission reliability improves, but resource configuration flexibility decreases
Solution Approach 1:
The patent employs parameter changes by establishing different minimum threshold values for bandwidth capability depending on the frequency band. The first minimum threshold value for the first frequency band and the second minimum threshold value for the second frequency band are configured based on the specific characteristics of each band. This allows the system to ensure adequate signal transmission reliability for each frequency band while maintaining the flexibility to allocate resources according to actual network conditions and service requirements, thus resolving the contradiction between reliability and flexibility.
Data Source
AI summary
Various embodiments provide a signal transmission method and apparatus, and is applied to a multi-band communications system. Under the method, a terminal reports bandwidth capability information of a first frequency band in a plurality of frequency bands to a radio access network node. An operating band of the terminal includes the first frequency band, the bandwidth capability information of the first frequency band indicates a bandwidth capability of the terminal in the first frequency band, the bandwidth capability in the first frequency band is not less than a first threshold, and the first threshold is determined based on a maximum bandwidth capability of the terminal, the first frequency band, or a subcarrier spacing of the first frequency band. The terminal can send or receive a signal on a resource allocated by the radio access network node based on the bandwidth capability information.