Dynamic Cell Mode Switching for 5G User Equipment

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Solution Overview

Problem

Current virtualized Radio Access Network (vRAN) architectures face challenges in managing radio access for user equipment (UE) devices, particularly in efficiently switching between unique cell and shared cell operating modes based on application traffic, leading to inefficient use of RAN resources in hybrid application environments like factory floors.

Innovation Solution

The implementation of dynamic switching techniques that allow user equipment (UE) to switch between unique cell and shared cell operating modes based on Quality of Service (QoS) flows and 5G QoS Identifiers (5QI) values, triggered by network elements, enabling efficient use of RAN resources by adapting to different application traffic types.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If shared cell operating mode is used to improve RAN resource efficiency, then resource utilization improves, but QoS for specific application traffic deteriorates

Engineering Contradiction:
ImproveRAN resource efficiencyVSAvoidQoS for application traffic
Core Design Contradiction:
Loss of energyVSReliability

Solution Approach 1:

The patent implements dynamic switching between shared cell and unique cell operating modes based on real-time application traffic detection. The network element monitors traffic flows and automatically transitions UEs from shared cell mode (for general traffic) to unique cell mode (for specific applications requiring guaranteed QoS), resolving the contradiction between resource efficiency and service reliability through adaptive mode selection.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the operating mode parameter of UEs based on application traffic characteristics. By detecting specific traffic patterns and modifying the cell assignment parameter dynamically, the system optimizes both resource utilization and QoS guarantees without requiring separate network infrastructures for different service types.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If unique cell operating mode is used for each UE, then QoS and reliability improve, but RAN resource efficiency deteriorates

Engineering Contradiction:
ImproveQoS for user equipmentVSAvoidRAN resource efficiency
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

Instead of statically assigning unique cells to all UEs, the system dynamically selects between shared and unique cell modes based on application requirements. This dynamic approach ensures QoS is guaranteed only when necessary (for specific applications), while maintaining resource efficiency for general traffic, thus resolving the contradiction between reliability and resource efficiency.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent applies different cell operating modes to different UEs or different traffic flows of the same UE based on local requirements. Specifically, unique cell mode is applied locally to UEs or flows requiring guaranteed QoS, while shared cell mode is used for others, optimizing the overall system by matching resource allocation to local needs rather than applying a uniform approach.

Inventive Principle:
Principle #3Local quality

3Adaptability or versatility

If dynamic switching between operating modes is implemented, then adaptability to different application traffic improves, but system complexity increases

Engineering Contradiction:
ImproveAdaptability to application trafficVSAvoidSystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The network element automatically detects application traffic types and autonomously determines the appropriate operating mode without requiring complex manual configuration or user intervention. This self-service approach enables high adaptability while keeping system complexity manageable by leveraging automated traffic analysis and policy-based decision-making rather than complex control mechanisms.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system implements feedback loops where the network element continuously monitors application traffic characteristics and adjusts operating modes accordingly. This feedback mechanism enables the system to adapt to changing traffic conditions automatically, achieving high versatility through simple monitor-detect-switch cycles rather than complex predictive algorithms.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS11871271B2Dynamic switching for user equipment between unique cell and shared cell operating modes based on application traffic
Publication Date: 2024.01.09 CISCO TECHNOLOGY INC
  • US11871271B2 patent drawing
  • US11871271B2 patent drawing
  • US11871271B2 patent drawing

AI summary

Presented herein are techniques to facilitate dynamic switching for user equipment between unique cell and shared cell operating modes based on application traffic. In one example, a method may include determining, a quality of service (QoS) to be provided for a traffic flow of a user equipment (UE) in which the mobile network includes a radio access network (RAN) including a plurality of radio units (RUs) in which at least two RUs provides a shared cell and each RU provides a unique cell; identifying an operating mode for the UE based on the QoS in which the operating mode indicates whether the traffic flow is to be communicated using a shared cell or a unique cell operating mode; and causing the UE to communicate the traffic flow using the shared cell the unique cell operating mode.