Network Slice Attachment Signaling Overhead Reduction
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Solution Overview
Problem
In wireless communication systems, networks do not provide clear indications of when features are temporarily unavailable, leading to unnecessary signaling overhead due to repeated requests from communication devices for services that were previously rejected.
Innovation Solution
A communication device and network system that includes processing circuits and storage devices to handle network slice attachments by sending specific NAS messages with timer values indicating when a network slice is unavailable, allowing devices to suspend requests during this time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the network does not indicate feature unavailability duration, then the network can maintain simple signaling protocols, but communication devices will repeatedly request rejected services causing unnecessary signaling overhead
Solution Approach 1:
The network performs preliminary action by providing a timer value in the rejection message before the device would otherwise retry. This timer value indicates the duration of feature unavailability, allowing the device to suspend requests during this period and avoid generating unnecessary signaling overhead from repeated retry attempts.
2Productivity
If the network provides timer values indicating feature unavailability, then unnecessary requests from communication devices are reduced, but the network signaling complexity increases
Solution Approach 1:
The network changes the parameter of the rejection message by including an additional timer value parameter. This parameter indicates the duration for which the feature is unavailable, transforming a simple rejection message into an informative message that guides device behavior and improves network resource usage efficiency by reducing unnecessary retry requests.
Data Source
AI summary
The present invention provides methods and devices for a network to inform a user equipment which network slice is attached successfully and which network slice is prohibited to attach.