Network Entity Selection via Pre-Selection and Verification

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Solution Overview

Problem

Current media gateway selection procedures in communication systems are prone to compatibility issues due to optional implementation and lack of standardized encoding for media gateway identities, leading to suboptimal selection and resource mismanagement in circuit-switched core networks.

Innovation Solution

A method and apparatus for network entity selection that involves pre-selecting a network entity, furnishing its identity, and providing verification information to ensure the identity's applicability at subsequent network apparatuses, using Session Initiation Protocol (SIP) messages with Session Description Protocol (SDP) attributes to encode and verify the network address, thereby preventing misguidance and ensuring optimal resource allocation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If media gateway selection procedures are implemented optionally without standardized encoding, then implementation flexibility is improved, but compatibility and reliability deteriorate

Engineering Contradiction:

Improveimplementation flexibilityVSAvoidselection reliability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent changes the parameter of media gateway identity encoding from optional/non-standardized to standardized format. By defining a specific encoding structure for media gateway identities in SIP-I messages, the invention ensures that all network elements interpret and process these identities consistently, thereby improving reliability while maintaining implementation flexibility through the standardized framework.

Inventive Principle:

Principle #35Parameter changes

2Speed

If media gateway identity is pre-selected and transmitted without verification, then selection speed is improved, but accuracy deteriorates

Engineering Contradiction:

Improveselection speedVSAvoididentity accuracy

Core Design Contradiction:

SpeedVSMeasurement precision

Solution Approach 1:

The patent implements a verification mechanism where the receiving network element checks the pre-selected media gateway identity against its own capabilities and current network state. This feedback loop ensures that the pre-selected identity is valid and appropriate, correcting any mismatches while maintaining the speed benefit of pre-selection. The verification process acts as a sanity check that prevents incorrect selections.

Inventive Principle:

Principle #23Feedback

3Reliability

If standardized encoding for media gateway identities is implemented, then compatibility is improved, but device complexity increases

Engineering Contradiction:

ImprovecompatibilityVSAvoidencoding complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies universality by designing a standardized media gateway identity encoding that can be used across different network elements and scenarios. The encoding format is crafted to be broadly applicable in various SIP-I message types and network configurations, reducing the need for element-specific customizations. This universal approach improves compatibility while limiting complexity growth through reuse and standardization.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS11388202B2Network entity selection

Publication Date: 2022.07.12 NOKIA SOLUTIONS & NETWORKS OY

AI summary

There are disclosed measures of network entity selection, for example including furnishing an identity of a network entity being pre-selected by a first network apparatus, and providing verification information for said pre-selected network entity identity, enabling to verify whether the pre-selected network entity identity is applicable for network entity selection at a second network apparatus.