Dynamic Control and User Plane Data Transmission Switching
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Solution Overview
Problem
Current systems lack the ability for dynamic switching between Control Plane (CP) and User Plane (UP) data transmission, leading to inefficiencies and increased signaling load and delay, particularly when handling large data sizes or changing data patterns, which can impact user experience.
Innovation Solution
Implementing a method that allows for dynamic switching between CP and UP transmission based on data size and radio conditions, using a core network node to determine the optimal transmission method and adjust resources accordingly, including transmitting UE context setup requests and modify resources requests to radio access network nodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If Control Plane CIoT EPS Optimization is used for data transmission, then signaling efficiency is improved for small data, but handling capability deteriorates for large data sizes
Solution Approach 1:
The patent implements dynamic switching between Control Plane and User Plane transmission modes based on real-time data size assessment. The core network node determines whether to use CP or UP by evaluating the size of incoming data, allowing the system to adapt its transmission path dynamically rather than being fixed in one mode.
Solution Approach 2:
The system changes the transmission mode parameter (from CP to UP or vice versa) based on the data size parameter. When data size exceeds a threshold, the system switches from Control Plane to User Plane transmission, and when data size is small, it switches back to Control Plane, optimizing resource utilization based on varying data characteristics.
2Productivity
If dynamic switching between CP and UP is implemented, then network performance is improved, but signaling load and switching delay increase
Solution Approach 1:
The core network node performs preliminary assessment of data size before initiating transmission mode switching. By evaluating whether the data size exceeds the threshold in advance, the system can prepare for the appropriate transmission mode (CP or UP) before actual data transmission begins, reducing the switching delay and avoiding last-minute mode changes.
3Productivity
If Control Plane transmission is used, then resource utilization is improved for small data, but bandwidth overload occurs in NB-IoT control plane
Solution Approach 1:
The patent extracts large data traffic from the Control Plane and redirects it to the User Plane when data size exceeds the threshold. This separation prevents large data transmissions from overloading the NB-IoT control plane bandwidth, while small data transmissions continue to utilize the efficient Control Plane path, thus eliminating the harmful bandwidth overload effect.
Data Source
AI summary
The invention describes a method for dynamic switching between a control plane data transmission and user plane data transmission avoiding the Detach and consecutive re-attach procedure or TAU procedure. In particular the decision for switch between the different transmission schemes is based on various criteria like the size of the data packet or on total amount of data, etc.