Control Plane Small Data Containers for Low-Overhead IoT Transport

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Solution Overview

Problem

Existing 5G communication systems face challenges in managing control plane messages, which impact network performance, particularly in the context of machine type communications for IoT devices, where efficient management of small data transfers is crucial for battery life and network efficiency.

Innovation Solution

Implementing a control plane-based user data transport methodology using designated payload container types, such as CIoT small data containers, to optimize data transfer for IoT devices, minimizing overhead and energy consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If control plane messages are used for data transport in 5G networks, then network performance is improved, but message management complexity increases

Engineering Contradiction:
Improvenetwork performanceVSAvoidmessage management complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent segments control plane messages into different message types (e.g., service request, service reject, uplink NAS transport) and uses designated payload container types (CIoT small data container, CIoT user data container) to categorize data transport scenarios. This segmentation allows the network to manage complexity by handling different message types through standardized procedures, improving overall network performance while maintaining manageable complexity through structured classification.

Inventive Principle:
Principle #1Segmentation

2Productivity

If existing 5G control plane approaches are used, then data transport is supported, but overhead and energy consumption increase

Engineering Contradiction:
Improvedata transport capabilityVSAvoidenergy consumption
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The patent changes the parameter of payload container types by introducing CIoT small data container and CIoT user data container as designated container types for control plane data transport. This parameter change enables efficient data transport for IoT devices by optimizing the container structure and selection criteria, reducing overhead and energy consumption while maintaining data transport capability.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent applies partial action by selectively using control plane data transport only for small data transfers from IoT devices, rather than implementing full data transport for all scenarios. This partial application reduces overhead and energy consumption for the majority of IoT communications while maintaining the option for full data plane transport when necessary, achieving energy efficiency without compromising data transport capability.

Inventive Principle:
Principle #16Partial or excessive action

3Productivity

If control plane optimization is enabled for PDU sessions, then network efficiency is improved, but implementation complexity increases

Engineering Contradiction:
Improvenetwork efficiencyVSAvoidimplementation complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent implements universality by designing the control plane optimization mechanism to work across multiple PDU session types and network scenarios. The designated payload container types (CIoT small data container, CIoT user data container) can be used in various contexts including idle mode, connected mode, and different network slices. This multi-functional approach improves network efficiency for IoT devices while reducing implementation complexity through a unified, universally applicable framework.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP4274276B1User data transport over control plane in communication system using designated payload container types
Publication Date: 2025.12.24 NOKIA TECHNOLOGIES OY
  • EP4274276B1 patent drawingFigure 1
  • EP4274276B1 patent drawingFigure 2
  • EP4274276B1 patent drawingFigure 3

AI summary

Improved techniques for user data transport over a control plane in a communication system are provided. For example, a method comprises determining a size of user data to be transmitted over a control plane between user equipment and at least one network entity of a communication system. The method also comprises, in response to determining that the size of the user data to be transmitted is below at least a threshold for small data transport, generating a control plane message comprising the user data to be transmitted in a small data container for transport of user data over the control plane. The method further comprises transmitting the generated control plane message between the user equipment and the at least one network entity of the communication system.