Data-over-NAS Signalling Trigger Mechanism
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Solution Overview
Problem
Current communication systems face inefficiencies in 'small data' scenarios due to high overhead and difficulties in dynamic switching between data-over-NAS and regular bearer mechanisms, leading to increased signalling load and error cases, especially for devices with infrequent data transmissions.
Innovation Solution
A method for signalling activation or deactivation of the data-over-NAS transmission scheme based on trigger conditions, using filters to determine when to switch between data-over-NAS and regular bearers, allowing for explicit signalling to optimize bearer usage and reduce NAS signalling load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If data-over-NAS transmission scheme is used for small data scenarios, then overhead is reduced and energy consumption is lowered, but dynamic switching between data-over-NAS and regular bearer mechanisms becomes difficult
Solution Approach 1:
The patent implements dynamic switching between data-over-NAS and regular bearer mechanisms by introducing a trigger condition evaluation mechanism. The system can transition from static configuration to dynamic selection based on real-time traffic conditions, allowing the transmission scheme to adapt to changing data requirements while maintaining the overhead reduction benefits of data-over-NAS when appropriate.
Solution Approach 2:
The patent changes the operational parameters of the transmission system by introducing trigger conditions that monitor traffic characteristics. When specific parameter thresholds are met (such as data volume, frequency, or pattern), the system switches between transmission modes, enabling flexible adaptation without permanently committing to one scheme.
2Adaptability or versatility
If dynamic switching between data-over-NAS and regular bearer is implemented, then adaptability improves, but signalling load increases and error cases increase
Solution Approach 1:
The patent applies preliminary action by pre-defining trigger conditions and evaluation criteria for switching between transmission schemes. Instead of making complex decisions in real-time, the system evaluates pre-established conditions, which reduces the signalling overhead associated with dynamic switching while maintaining adaptability.
Solution Approach 2:
The system performs self-service by autonomously evaluating trigger conditions and making switching decisions based on predefined criteria. This self-contained mechanism reduces the need for extensive network signalling and external control, thereby lowering signalling load while maintaining dynamic adaptability.
3Use of energy by moving object
If data-over-NAS transmission is used, then energy consumption is reduced for infrequent data transmissions, but system complexity increases due to special packet delivery mechanisms
Solution Approach 1:
The patent applies local quality by implementing data-over-NAS transmission selectively for specific scenarios (infrequent, small data transmissions) rather than universally. The trigger condition mechanism ensures that this energy-efficient mode is activated only where appropriate, reducing overall system complexity while maintaining energy savings for targeted use cases.
Data Source
AI summary
A technique for signalling activation or deactivation of a data-over-non-access-stratum, NAS, transmission scheme is disclosed, the transmission scheme being for transmitting data packets over the NAS between a terminal and a base station, and being started in an idle mode. In a method aspect, there are steps of determining a trigger condition indicating a need for the data-over-NAS transmission scheme, and signalling an indication for activation or deactivation in response to fulfilment or non-fulfilment of the determined trigger condition. In another method aspect, there may be steps of receiving the indication for activation or deactivation, and activating or deactivating the data-over-NAS transmission scheme in response to the signalled indication.