Multi-Band Beam Codebooks for Shared 5G Antenna Arrays
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Solution Overview
Problem
Due to form factor constraints, UE devices often lack dedicated antenna arrays for each frequency band, leading to inefficiencies in managing antennas operating across multiple frequency bands in 5G networks.
Innovation Solution
The implementation of multi-band beamforming codebooks that can be applied to an antenna array operating across a combination of two or more frequency parts, allowing for effective management of antennas in 5G networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dedicated antenna arrays are provided for each frequency band, then communication performance in each band is improved, but device complexity and size increase
Solution Approach 1:
The patent implements a universal antenna array that can operate across multiple frequency bands (e.g., 24 GHz, 28 GHz, 39 GHz) by using a single set of antenna elements with configurable beamforming codebooks. This allows the same hardware infrastructure to serve multiple frequency bands, eliminating the need for separate dedicated antenna arrays for each band while maintaining communication performance.
Solution Approach 2:
The patent merges multiple frequency band operations into a single antenna array system. By combining the functionality of what would otherwise be separate antenna arrays into one unified structure with shared beamforming resources, the system reduces overall device complexity while supporting multi-band operations.
2Reliability
If separate antenna arrays are used for each frequency band, then frequency-specific optimization is improved, but manufacturing cost and device size increase
Solution Approach 1:
The patent creates a universal antenna array design that can be manufactured once and deployed across multiple frequency bands. The single antenna array with programmable beamforming codebooks eliminates the need to manufacture and deploy separate antenna arrays for each frequency band, significantly reducing manufacturing costs and device size.
Solution Approach 2:
The patent achieves frequency-specific optimization through parameter changes in the beamforming codebooks rather than through hardware changes. By adjusting the phase and amplitude parameters in the codebooks, the same physical antenna array can be optimized for different frequency bands without requiring separate hardware designs.
3Device complexity
If a single antenna array operates across multiple frequency bands, then device complexity is reduced, but beamforming accuracy may deteriorate
Solution Approach 1:
The patent applies local quality by creating frequency-specific beamforming codebooks tailored to each operating frequency band. Each codebook contains parameters optimized for its specific frequency range, allowing the single antenna array to achieve accurate beamforming performance at each frequency despite the hardware being shared across all bands.
Solution Approach 2:
The patent compensates for the potential loss in beamforming accuracy by dynamically changing the beamforming parameters (phase shifts, amplitudes) in the codebooks according to the operating frequency. This parameter adaptation ensures that the single antenna array maintains high beamforming accuracy across different frequency bands.
Data Source
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AI summary
The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). An electronic device and method for managing an antenna operating in a combination of frequency bands. The electronic device comprises at least one antenna including a plurality of antenna elements, a transceiver operably connected with the at least one antenna and configured for communication over multiple frequency parts. The electronic device also comprises a processor operably connected to the transceiver, the processor configured to determine the multiple frequency parts; identify, from a configuration received in response to the multiple frequency parts reported in the PUCCH, a combination of one or more frequency parts from the multiple frequency parts for performing the communication; obtain a beamforming codebook; and apply one or more beams within the beamforming codebook for performing the communication.