Beam-Specific Gain Adjustments for Ultra-Wide Band Beam Squinting
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Solution Overview
Problem
Ultra-wide band wireless communication systems face challenges with beam squinting errors that affect beam management, particularly due to limited RF component chains and impairments leading to signal transmission losses and unpredictable link margins.
Innovation Solution
Implementing beam-specific gain adjustments for wireless communication beams with different spatial orientation parameters, stored in lookup tables and applied by network nodes and access terminals to refine beamforming and mitigate beam squinting issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If beamforming is implemented in ultra-wide band systems, then directional communication capability is improved, but beam squinting errors occur due to frequency-dependent beam variations
Solution Approach 1:
The patent applies parameter changes by adjusting beam-specific gain adjustments based on frequency ranges and beamformed spatial orientation parameters. Different gain adjustments are applied to different beams within ultra-wide bandwidth to compensate for frequency-dependent beam variations and reduce beam squinting errors, thereby maintaining reliable beam management across the wide frequency spectrum.
2Device complexity
If RF component chains are reduced, then device complexity is reduced, but signal transmission losses increase due to limited RF components
Solution Approach 1:
The patent applies local quality by implementing beam-specific gain adjustments tailored to different spatial orientations and frequency ranges. Instead of uniformly increasing RF component chains, the system applies localized gain compensation to specific beams that experience transmission losses, thereby maintaining signal quality without adding overall device complexity.
3Reliability
If beam-specific gain adjustments are applied, then beam squinting errors are reduced, but system complexity increases due to additional adjustment mechanisms
Solution Approach 1:
The patent applies preliminary action by pre-determining beam-specific gain adjustments for different beams and frequency ranges before actual communication occurs. The network node or access terminal stores and applies these pre-calculated adjustments, avoiding the need for complex real-time calculations and reducing the complexity of the adjustment mechanism while maintaining high beam management accuracy.
4Productivity
If ultra-wide bandwidth is used, then data transmission capacity is improved, but beam squinting errors increase due to larger frequency range
Solution Approach 1:
The patent applies parameter changes by implementing frequency-dependent beam-specific gain adjustments across the ultra-wide bandwidth. The system divides the wide bandwidth into different frequency ranges and applies appropriate gain adjustments for each range and beam, thereby maintaining beam management accuracy while utilizing the full data transmission capacity of the ultra-wide band system.
Data Source
AI summary
Aspects of the disclosure relate to beam management systems and procedures. In one example, a network node is configured to determine beam-specific gain adjustments for use with a set of wireless communication beams, wherein the wireless communication beams have one or more different beamformed spatial orientation parameters. The network node is also configured to apply the beam-specific gain adjustments to wireless communications with an access terminal. In another example, an access terminal is configured to receive beam-specific gain adjustments from a network node for use with a set of wireless communication beams, wherein the wireless communication beams have one or more different beamformed spatial orientation parameters. The access terminal is also configured to apply the beam-specific gain adjustments to wireless communications with the network node. Hierarchical beam management systems and procedures are also described. Illustrative examples exploit frequencies above 24.25 gigahertz (GHz).