NIDD Port Consistency Check for SCEF Resource Conservation

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Solution Overview

Problem

In communication systems, the transfer of non-internet protocol data delivery (NIDD) messages with mismatched port numbers leads to wastage of communication resources and undesired actions due to the SCEF not verifying the consistency of Reliable Data Service (RDS) port numbers, resulting in invalid data transmission.

Innovation Solution

Implement a method to check the consistency of RDS port numbers in NIDD messages by determining if they are within a configured RDS port list, and if not, discard the message or send an error indication, allowing for an updated configuration or message to be transmitted.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the SCEF directly transfers NIDD messages without verifying port number consistency, then the ease of operation is improved, but network resources are wasted and undesired actions occur

Engineering Contradiction:

Improveease of operationVSAvoidnetwork resources

Core Design Contradiction:

Ease of operationVSLoss of energy

Solution Approach 1:

The patent applies preliminary action by performing port number consistency verification before transferring NIDD messages. The SCEF checks whether source and destination port numbers match the configured RDS port list before allowing message transfer, preventing waste of network resources on invalid messages while maintaining operational simplicity through automated verification.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If the SCEF verifies port number consistency in NIDD messages, then the reliability is improved, but the device complexity increases

Engineering Contradiction:

ImprovereliabilityVSAvoiddevice complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies self-service by having the SCEF automatically perform port number verification using pre-configured RDS port lists. The system serves itself by maintaining configuration data and autonomously checking message port consistency without requiring external verification mechanisms, thereby improving reliability while minimizing additional complexity.

Inventive Principle:

Principle #25Self-service

3Loss of information

If the SCEF checks and discards messages with mismatched port numbers, then the loss of information is reduced, but the productivity decreases

Engineering Contradiction:

Improveloss of informationVSAvoidproductivity

Core Design Contradiction:

Loss of informationVSProductivity

Solution Approach 1:

The patent applies feedback by implementing a verification loop where the SCEF checks port number consistency and provides feedback through error indications to the AF or SCS/AS when mismatches are detected. This feedback mechanism prevents loss of information by identifying invalid messages while allowing the system to maintain productivity through automated error reporting and configuration updates.

Inventive Principle:

Principle #23Feedback

Data Source

PatentEP4340334B1Method and entity for checking port consistency of NIDD message

Publication Date: 2025.11.12 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

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AI summary

Embodiments of the present disclosure provide a method and an entity for checking port consistency of NIDD message. A first aspect of the present disclosure provides a method performed at a first entity (100), comprising: receiving (S101), from a second entity, a non-internet protocol data delivery, NIDD, message including one or more RDS port numbers; and determining (S102) whether the one or more RDS port numbers are within a configured RDS port list. According to embodiments of the present disclosure, network resources for transmitting the invalid NIDD data may be saved, and undesired actions in the communication system may be avoided.