Millimeter-Wave Beam Correlation for Inter-Band Carrier Aggregation
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Solution Overview
Problem
Wireless communications systems face challenges in managing beam correlation across different millimeter wave frequency bands, particularly in inter-band carrier aggregation, due to environmental degradation and differences in beam quality, leading to inefficiencies and reduced reliability.
Innovation Solution
A method and apparatus for wireless communications that utilize a beam correlation parameter based on a carrier aggregation configuration to determine and use correlated beams across different millimeter wave frequency bands, such as FR2 and FR4, for improved communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam correlation is managed across different millimeter wave frequency bands in inter-band carrier aggregation, then communication reliability is improved, but system complexity increases due to environmental degradation and beam quality differences
Solution Approach 1:
The patent changes the parameter of beam management by introducing a beam correlation parameter that adapts to different millimeter wave frequency bands. This parameter enables the system to adjust beamforming operations based on environmental conditions and frequency-specific characteristics, thereby improving reliability without requiring complete redesign of the beam management architecture.
Solution Approach 2:
The beam correlation parameter acts as an intermediary that bridges different frequency bands (FR2 and FR4) in inter-band carrier aggregation. It mediates between the environmental degradation effects and beam quality differences across bands, enabling coordinated beam management while simplifying the overall system complexity through a unified parameter-based approach.
2Productivity
If carrier aggregation configuration is implemented across multiple frequency bands, then communication efficiency is improved, but signaling overhead increases
Solution Approach 1:
The beam correlation parameter serves a universal function across multiple frequency bands in carrier aggregation. Instead of implementing separate beam management mechanisms for each band, this single parameter enables multi-functional beam coordination across FR2 and FR4 bands, improving communication efficiency while reducing redundant signaling overhead.
3Reliability
If beam quality differences across frequency bands are addressed, then communication reliability is improved, but device complexity increases
Solution Approach 1:
The patent applies local quality by allowing the beam correlation parameter to be frequency-band-specific, enabling each frequency band (FR2 and FR4) to have optimized beam characteristics tailored to its environmental conditions and propagation characteristics. This localized approach improves reliability for each band while maintaining overall system manageability.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A first wireless device may receive, from a second wireless device, a carrier aggregation configuration including two millimeter wave frequency bands for communications. The first wireless device may determine a beam correlation parameter based on the carrier aggregation configuration. The first wireless device may determine beams, based on the beam correlation parameter, in the two frequency bands. The first wireless device and the second wireless device may communicate in carrier aggregation using a beam on a first frequency band and a second beam on a second frequency band.