UE Multi-Beam Steering for Simultaneous Uplink Transmission
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Solution Overview
Problem
Conventional beam steering solutions in 5G networks are limited by the inability to efficiently utilize multiple beams simultaneously with the same set of antenna elements for uplink transmissions, which can impact network performance and connectivity.
Innovation Solution
A method for multibeam steering in user equipment (UE) that determines and generates multiple beams using optimized amplitude and phase values, allowing simultaneous uplink transmissions through multiple beams, facilitated by genetic algorithms and transmission configuration indications (TCI states) for enhanced connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional beam steering solutions are used, then single beam transmission is achieved, but the ability to transmit multiple beams simultaneously is limited
Solution Approach 1:
The patent combines multiple beamforming weight sets (first weight set for first beam, second weight set for second beam) to enable simultaneous multi-beam transmission using the same antenna elements. This merging approach allows the system to achieve multi-beam capability without adding separate antenna sets for each beam direction.
Solution Approach 2:
The same set of antenna elements is made multi-functional by applying different beamforming weight sets at different time instances or for different transmission purposes. The antenna array can dynamically switch between single-beam and multi-beam modes, serving both conventional and advanced transmission requirements with the same hardware.
2Productivity
If multiple beams are generated simultaneously, then uplink transmission performance is improved, but computational complexity increases
Solution Approach 1:
The patent pre-determines multiple beamforming weight sets corresponding to different beam directions before actual transmission. These weight sets are calculated in advance based on channel state information and stored for rapid application. This preliminary computation reduces real-time processing complexity during actual multi-beam transmission.
Solution Approach 2:
The system dynamically selects and applies appropriate beamforming weight sets based on current transmission requirements, channel conditions, and target directions. This dynamic adaptation allows the system to optimize performance for each transmission scenario without requiring exhaustive real-time calculations for all possible beam configurations.
Data Source
AI summary
A method of multibeam steering includes determining, by a user equipment (UE) equipped with a plurality of antenna elements, a plurality of amplitude values and a plurality of phase values for the multibeam steering; and generating, simultaneously, a first beam and a second beam based on the plurality of amplitude values and the plurality of phase values.