Dynamic QoS Handover via Policy Control Function in 5G Networks
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Solution Overview
Problem
Current 5G wireless telecommunication networks face challenges in dynamically managing Quality of Service (QoS) during handovers, particularly in distinguishing between different types of user equipment (UE) and allocating appropriate network resources effectively, which can lead to inefficiencies and service quality issues.
Innovation Solution
The implementation of a Policy Control Function (PCF) that modifies policy rules based on UE priorities, location, and network characteristics, allowing dynamic allocation of QoS parameters such as 5QI, ARP, and bitrate values to ensure optimal service delivery, whether in public or private 5G networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dynamic QoS management is implemented during handovers, then service quality and network efficiency are improved, but device complexity and signaling overhead increase
Solution Approach 1:
The patent introduces a Policy Control Function (PCF) as an intermediary component that manages QoS policy rules and coordinates handover decisions between the UE and network. This mediator handles the complexity of dynamic QoS management centrally, reducing the burden on individual devices while maintaining improved service quality through standardized policy enforcement mechanisms.
2Speed
If QoS parameters are dynamically allocated during handover, then data transmission speed increases, but signaling overhead increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring QoS policy rules and parameters before handover events occur. The PCF establishes QoS profiles and allocation rules in advance, allowing rapid QoS parameter application during handover without extensive real-time signaling negotiations, thus maintaining high data transmission speeds while reducing signaling overhead.
3Reliability
If priority-based resource allocation is implemented, then emergency responder service quality improves, but network resource allocation complexity increases
Solution Approach 1:
The patent implements local quality by applying differentiated QoS policies to specific UE types based on their priority levels. Emergency responders receive enhanced QoS parameters (higher bitrates, lower latency) while regular users receive standard service. This localized quality adjustment for specific user groups improves emergency responder service quality without requiring complex global resource allocation mechanisms.
Data Source
AI summary
Techniques for performing a handover with dynamic Quality of Service (QoS) in a 5th generation (5G) network are described herein. A user equipment (UE) undergoing a handover is communicatively coupled to the 5G network based on a subscription type of the UE. The 5G network modifies policies and determines modified policies with dynamic QoS associated with the UE based on whether the subscription type restricts access for the UE to a public 5G network or allows the UE to access a private 5G network. The modified policies with dynamic QoS are utilized to determine communication parameters associated with the UE, which are provided to the UE based on a policy control create request transmitted to a policy control function (PCF), a policy modification request transmitted by the PCF to a session management function (SMF), a policy modification response transmitted by the SMF and to the PCF, and/or a policy control create response transmitted by the PCF.