Data-Link Status Reporting With Direct Application Subscriptions

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Solution Overview

Problem

Providing dynamic status information (DSI) on data links using existing RNIS protocols experiences significant latency due to indirect communication paths and resource overheads.

Innovation Solution

Establish direct subscriptions between reporting nodes and application nodes for DSI, bypassing exposure nodes to reduce latency and computational overhead, while utilizing APIs to manage and control data links.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If indirect communication path through exposure node is used for providing DSI, then service provisioning is simplified, but latency increases significantly

Engineering Contradiction:

Improveservice provisioning simplicityVSAvoidlatency

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The exposure node acts as an intermediary that registers reporting services and facilitates subscription establishment, but does not mediate the actual DSI communication path. The intermediary enables simplified service provisioning while allowing direct low-latency communication between reporting and application nodes.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Loss of time

If direct subscription between reporting node and application node is established, then latency is reduced, but device complexity increases

Engineering Contradiction:

ImprovelatencyVSAvoidsubscription management complexity

Core Design Contradiction:

Loss of timeVSDevice complexity

Solution Approach 1:

The system segments subscription management into two parts: service registration is centralized at the exposure node, while subscription establishment and DSI communication are decentralized between reporting nodes and application nodes. This segmentation reduces latency for DSI delivery while distributing complexity across multiple components.

Inventive Principle:

Principle #1Segmentation

3Reliability

If exposure node mediates all DSI communication, then security control is centralized, but computational overhead increases

Engineering Contradiction:

Improvesecurity controlVSAvoidcomputational overhead

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The exposure node serves as a security intermediary that performs centralized authentication and authorization during service registration and subscription establishment. Once security is verified, the intermediary steps out of the critical DSI communication path, reducing computational overhead for time-sensitive operations while maintaining centralized security control.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentEP4085595B1Reporting service for dynamic status information on a data link

Publication Date: 2025.10.29 SONY GROUP CORP

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AI summary

A method of operating a node of a communications network is provided. The node is configured to support at least one data link. The at least one data link is between the communications network and a UE. The method includes providing registration data to an exposure node of the communications network. The registration data is for a reporting service on DSI of the at least one data link. The method also includes, upon receiving a subscription request for a subscription to the reporting service, establishing the subscription to the reporting service between the node and an external application node. The external application node is associated with the subscription request. The method furthermore includes providing the DSI in accordance with the subscription to the external application node.