Carrier Aggregation QoS Management for Multiple PDNs
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Solution Overview
Problem
There is a need for a method and apparatus to ensure Quality of Service (QoS) when a terminal is connected to multiple Packet Data Networks (PDNs) in a wireless communication system using the Carrier Aggregation (CA) technique, as existing systems face challenges in managing and optimizing the connection to multiple PDNs effectively.
Innovation Solution
The method involves transmitting and receiving information regarding CA carriers and operation policies between an electronic device and a core network, configuring a radio bearer for data communication based on the received operation policy, and dynamically managing bandwidths to ensure QoS across multiple PDNs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If Carrier Aggregation technique is used to connect to multiple PDNs, then bandwidth and data transmission capacity are improved, but device complexity and network management difficulty increase
Solution Approach 1:
The patent changes the parameter of operation policy management by introducing dynamic operation policies that can be transmitted from the core network to the terminal. These policies include parameters such as PDN connection status, bandwidth allocation, and carrier activation states, allowing the system to adapt to different network conditions and service requirements without increasing terminal complexity
Solution Approach 2:
The patent segments the network management functionality by separating the operation policy determination into two parts: the core network generates and transmits operation policies, while the terminal executes these policies. This segmentation allows complex management logic to remain in the network infrastructure rather than burdening the terminal device
2Adaptability or versatility
If multiple PDNs are connected simultaneously, then service versatility and user experience are improved, but QoS management difficulty and resource allocation complexity increase
Solution Approach 1:
The patent implements feedback mechanisms where the terminal reports its operational status and network conditions back to the core network. The core network uses this feedback to adjust operation policies dynamically, ensuring QoS requirements are met while managing multiple PDN connections. This feedback loop enables automated QoS management without requiring complex terminal-side decision-making
Solution Approach 2:
The patent introduces dynamic operation policies that can change based on network conditions, service requirements, and terminal state. Rather than static configuration, the system continuously adapts bandwidth allocation, carrier activation, and PDN connection states to optimize both service versatility and QoS management
Data Source
AI summary
Various embodiments of the present disclosure relate to a method and apparatus for connecting to multiple Packet Data Networks (PDNs) in a wireless communication system using a Carrier Aggregation (CA) technique. In the wireless communication system using the CA technique for aggregating multiple carriers into one carrier, the wireless communication system may ensure Quality of Service (QoS) of a subscriber by mapping multiple carriers and multiple PDNs on the basis of a dynamic CA carrier. Various embodiments are possible.