Uplink Resource Allocation for Shared Spectrum Bands
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Solution Overview
Problem
Wireless communication systems face challenges in efficiently allocating uplink resources across different shared radio frequency spectrum bands, particularly in meeting varying transmission parameters and emission limits, leading to suboptimal performance and potential compliance issues with regulatory requirements.
Innovation Solution
The implementation of techniques that allow base stations to select appropriate frequency bands and configure user equipment (UE) to use specific resource allocation schemes, such as uniformly or non-uniformly spaced resource blocks, to ensure compliance with transmission parameters of each band, and mapping resources from one band to another to optimize uplink transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a uniform resource allocation scheme is used across all shared radio frequency spectrum bands, then device complexity is reduced and ease of operation is improved, but transmission compliance with band-specific emission limits deteriorates and manufacturing precision is worsened
Solution Approach 1:
The patent implements dynamic resource allocation schemes that adapt to different shared radio frequency spectrum bands. The base station configures different resource allocation parameters (such as interlace patterns, resource block assignments, and power spectral density limits) based on the specific transmission characteristics and emission requirements of each band, allowing the system to transition from static to dynamic configuration
Solution Approach 2:
The patent applies local quality by configuring band-specific resource allocation parameters tailored to each shared spectrum band's characteristics. Each band receives customized allocation schemes that match its emission limits and transmission properties, rather than applying a uniform configuration across all bands
2Productivity
If higher transmission power is used to enhance data transmission capacity, then productivity is improved, but out-of-band emissions increase causing harmful effects
Solution Approach 1:
The patent changes transmission parameters by implementing band-specific power spectral density limits and resource allocation patterns. By adjusting parameters such as subcarrier spacing, cyclic prefix length, and resource block distribution according to each band's characteristics, the system optimizes power utilization while controlling out-of-band emissions
Solution Approach 2:
The patent converts the potential harm of high power transmissions into benefit by using band-specific resource allocation to direct energy more efficiently. The customized allocation schemes ensure that transmission power is concentrated in authorized bands while minimizing spurious emissions, effectively transforming what could be harmful interference into useful signal energy
Data Source
AI summary
Disclosed techniques provide for different uplink resource allocation schemes in transmissions that use different shared radio frequency spectrum bands. In some cases, the different shared radio frequency spectrum bands may have different transmission characteristics or parameters, and associated resource allocation schemes may be selected to provide transmissions that are more likely to comply with the transmission characteristics or parameters associated with a particular band. In some cases, resource allocation types may be identified based on one band and mapped to identify uplink resources for an uplink transmission on a different shared radio frequency spectrum band.