Adaptive PCC Switching in Massive MIMO Beamforming Calibration
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Solution Overview
Problem
In Massive MIMO networks, user equipment (UE) may fail to receive high data transfer benefits when its primary component carrier (PCC) fails a calibration check, leading to suboptimal performance until the PCC is recalibrated.
Innovation Solution
A system and method that dynamically pairs the UE with an alternative component carrier (CC) as its PCC if the original PCC fails a calibration check, based on factors such as available bandwidth or uplink capacity, ensuring continuous high data transfer until the original PCC is recalibrated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the UE communicates with the original PCC after calibration failure, then the system maintains simple pairing management, but the data transfer performance deteriorates
Solution Approach 1:
The patent implements dynamic PCC pairing by enabling the UE to switch between original and alternative PCCs based on calibration status. The system dynamically adjusts the active PCC configuration without requiring complex manual intervention, resolving the contradiction between simple management and high performance through automated adaptive switching.
Solution Approach 2:
The system changes the operational parameter of PCC pairing status based on calibration results. When calibration fails, the parameter switches from original PCC to alternative PCC, maintaining optimal data transfer performance while keeping the pairing management mechanism simple through automated parameter adjustment.
2Measurement precision
If the system performs routine calibration checks on CCs, then the beamforming accuracy is improved, but the network operation time increases due to calibration interruptions
Solution Approach 1:
The system performs calibration checks on alternative PCCs in advance before they are needed. When the original PCC fails calibration, a pre-calibrated alternative PCC is already available for immediate switching, eliminating calibration interruption time while maintaining calibration accuracy.
Solution Approach 2:
The patent prepares alternative PCCs with pre-performed calibration checks as a cushion against potential original PCC calibration failures. This beforehand preparation ensures that when calibration is needed, a ready-to-use alternative exists, preventing operation time loss while maintaining calibration precision.
3Productivity
If the UE switches to an alternative PCC when the original PCC fails calibration, then the data transfer performance is maintained, but the system complexity increases
Solution Approach 1:
The UE autonomously monitors calibration status and performs self-service switching between PCCs without requiring complex external control mechanisms. The system enables itself to detect calibration failures and automatically switch to alternative PCCs, maintaining high data transfer performance while minimizing the complexity of the switching mechanism through self-managed operations.
Data Source
AI summary
Methods, systems, and media for improving pairing of user equipment (UE) in a Massive multiple-input multiple-output (MIMO) system using carrier aggregation are provided. Component carriers (CC) used for communication with UEs in the network may undergo routine beamforming calibration checks to determine if the CCs are calibrated. If a CC fails calibration, then UEs that communicate with the CC as their primary component carrier (PCC) may not be receiving the high data throughput typically experienced through the PCC. In response to determining that a CC fails calibration, a computing device may pair UEs with another CC as their PCC until the original CC passes a calibration check. The computing device may determine which CC to pair to the UEs based on uplink capacity, bandwidth, or a passed calibration check.