FR2 MU-MIMO UE Pairing With Beam Steering for Coverage
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Solution Overview
Problem
The implementation of multi-user multiple-input multiple-output (MU-MIMO) in frequency range 2 (FR2) is hindered by power constraints and reduced coverage, which limits its potential for enhancing throughput and coverage compared to FR1.
Innovation Solution
Implementing a method to pair user equipment (UEs) in MU-MIMO topology using beam-forming and beam-steering operations, enabling efficient utilization of FR2 frequencies by assigning each paired UE to a common carrier, thereby increasing cell coverage and throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If MU-MIMO is implemented in FR2 frequency bands, then throughput is improved, but power consumption increases and coverage is reduced
Solution Approach 1:
The patent applies local quality by enabling MU-MIMO only for specific UEs that meet certain criteria (e.g., sufficient receive power, appropriate beam conditions) rather than all UEs in the cell. This selective application allows throughput improvement for capable UEs while avoiding excessive power consumption for UEs where MU-MIMO would be inefficient.
Solution Approach 2:
The system dynamically determines whether to apply MU-MIMO based on real-time channel conditions, beam quality, and UE capabilities. The network can switch between MU-MIMO and non-MU-MIMO modes adaptively, optimizing the balance between throughput and power consumption according to current network conditions.
2Productivity
If MU-MIMO is implemented in FR2 frequency bands, then throughput is improved, but coverage is reduced
Solution Approach 1:
MU-MIMO is applied selectively to local areas or specific UEs with good channel conditions rather than uniformly across the entire coverage area. This allows high throughput in favorable locations while maintaining basic coverage services in more distant or challenging locations.
Solution Approach 2:
The cell coverage area is effectively segmented into different service zones: a core region where MU-MIMO provides high throughput, and peripheral regions where traditional single-user or non-MU-MIMO modes ensure basic coverage. This segmentation resolves the contradiction by providing different service levels in different spatial zones.
3Reliability
If beam-forming is used to reduce interference in MU-MIMO, then signal quality is improved, but device complexity increases
Solution Approach 1:
The patent leverages existing beamforming capabilities and procedures from FR1 and existing 5G standards, essentially copying proven techniques to FR2 MU-MIMO implementation. This reduces the need to develop entirely new complex beamforming algorithms, thereby improving signal quality while limiting the increase in device complexity.
Data Source
AI summary
Aspects of the subject disclosure may include, for example, performing a first analysis in respect of a first carrier, the first carrier operative in accordance with a frequency included in a frequency range from 24.25 GHz to 52.60 GHz, inclusive, determining, based on the performing of the first analysis, that a first user equipment (UE) is to be paired with at least one other UE as part of a multi-user multiple-input multiple-output (MU-MIMO) topology in the first carrier, resulting in a first determination, and subjecting the first UE to the MU-MIMO in the first carrier in accordance with the first determination. Other embodiments are disclosed.