Dynamic Uplink MU-MIMO Pairing via Deep Packet Inspection
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Solution Overview
Problem
Current cellular network technologies face challenges in meeting high Quality of Service (QoS) demands due to a shortage of wireless spectrum, as they prioritize User Equipment (UE) pairing for Multiple-Input-Multiple-Output (MIMO) schemes solely based on channel orthogonality and Signal-to-Interference-Plus-Noise (SINR) ratios, ignoring data usage factors, which reduces overall network efficiency and cell-throughput.
Innovation Solution
The system selects UEs for Uplink MU-MIMO pairing by detecting channel orthogonality and using Deep Packet Inspection (DPI) to prioritize UEs based on data content, ensuring that UEs with high-priority data applications are scheduled together on the same Resource Block (RB) to maximize average cell-throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UEs are prioritized for pairing based on channel orthogonality and SINR ratio only, then link quality and reliability are improved, but network efficiency and cell-throughput are reduced
Solution Approach 1:
The patent changes the selection parameters for UE pairing by introducing data usage factors (QCI, 5QI, data rate, packet loss rate) alongside traditional channel quality metrics (SINR, channel orthogonality). This multi-parameter approach allows the system to dynamically adjust pairing decisions based on both link quality requirements and network efficiency goals, resolving the contradiction between reliability and productivity.
Solution Approach 2:
The system implements dynamic UE pairing by continuously monitoring data usage factors and channel conditions, then adjusting pairing decisions in real-time. The network entity dynamically selects UEs for MU-MIMO pairing based on current QoS requirements and channel orthogonality, rather than using static pairing criteria, thereby optimizing both link quality and network efficiency adaptively.
2Power
If UEs are paired based on channel orthogonality only, then signal-capturing power is increased, but overall network efficiency is reduced
Solution Approach 1:
The patent extends the pairing criteria beyond channel orthogonality to include data usage parameters such as QCI, 5QI, data rate, and packet loss rate. This multi-dimensional parameter selection enables the system to maintain high signal-capturing power through orthogonal channel pairing while simultaneously optimizing network efficiency by considering QoS requirements and data characteristics.
Solution Approach 2:
The network entity performs preliminary assessment of UEs based on data usage factors before final pairing decisions are made. By pre-evaluating QoS requirements, data rates, and packet loss rates alongside channel orthogonality, the system prepares optimal pairing candidates in advance, ensuring both high signal-capturing power and network efficiency are achieved.
Data Source
AI summary
Systems and methods are described for selecting User Equipment(s) (UEs) for pairing in a cellular network. A channel orthogonality of one or more UEs may be determined at an Access Node (AN) for a condition. The one or more UEs may be inspected for a criteria. At least one of the one or more UEs whose data content meets the criteria may be scheduled with at least one other UE for Uplink (UL) Multi-User Multiple-Input-Multiple-Output (MU-MIMO) pairing.