Unlicensed Carrier Spanning Multiple Bands With Segmented Regulation
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Solution Overview
Problem
Current wireless communication systems face limitations in utilizing unlicensed spectrum due to the inability of unlicensed carriers to span multiple bands with different regulation requirements, leading to underutilization of communication resources.
Innovation Solution
The system allows a user equipment (UE) to receive resource allocation for an unlicensed carrier that spans multiple unlicensed bands, enabling the application of varying sets of regulation requirement parameters based on the specific band or bandwidth part, ensuring compliance with the most stringent requirements for efficient resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an unlicensed carrier is configured to operate in a single unlicensed band, then the device complexity and regulation compliance are simplified, but the communication resource utilization and spectral efficiency are reduced
Solution Approach 1:
The unlicensed carrier is divided into multiple bandwidth parts (BWPs), each associated with specific regulation requirement parameters. This segmentation allows different portions of the carrier to be configured with different parameter sets corresponding to different unlicensed bands, enabling multi-band operation while maintaining manageable complexity through structured parameter organization.
Solution Approach 2:
Different regulation requirement parameters are applied to different bandwidth parts of the unlicensed carrier based on their specific unlicensed band locations. Each BWP can have customized parameters such as maximum power spectral density, maximum power, and other regulation-specific settings, allowing localized optimization for each band's requirements rather than applying uniform parameters across the entire carrier.
2Productivity
If multiple sets of regulation requirement parameters are configured for different bandwidth parts, then the communication resource utilization is improved, but the device complexity and parameter management overhead increase
Solution Approach 1:
The network device pre-configures multiple sets of regulation requirement parameters for different bandwidth parts before the UE performs transmissions. The UE receives and stores these parameter sets in advance, along with indications of which parameters apply to which BWPs. This preliminary configuration eliminates the need for real-time parameter negotiation during transmission, reducing operational complexity while enabling flexible multi-band resource utilization.
Solution Approach 2:
The UE is designed to handle multiple sets of regulation requirement parameters through a unified parameter management mechanism. The same UE apparatus can operate across multiple unlicensed bands with different parameter sets, making the device universally capable of complying with various band-specific regulations without requiring separate hardware or software configurations for each band.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a plurality regulation requirement parameters corresponding to an unlicensed carrier, where the unlicensed carrier spans at least a portion of a first unlicensed band associated with a first set of regulation requirements and at least a portion of a second unlicensed band associated with a second set of regulation requirements. The UE may identify, from the plurality of regulation requirement parameters, a set of regulation requirement parameters for an uplink transmission based at least in part on whether a set of frequency resources for the uplink transmission overlaps with the first unlicensed band and the second unlicensed band. The UE may transmit the uplink transmission using the set of regulation requirement parameters.