CAMEL Relay Function for Roaming Service Execution

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Solution Overview

Problem

Current CAMEL architectures in telecommunications networks require sub-optimal inter-PLMN connections for roaming users, leading to inefficient use of resources and increased costs when executing web services, as they necessitate establishing 'call legs' from the visited network to the home network for service execution.

Innovation Solution

A method and apparatus for relaying CAMEL related messages that involve analyzing and translating these messages into non-CAMEL formats, allowing them to be processed within a service delivery framework, and then re-translating responses back into standard CAMEL operations, thereby enabling efficient execution of web services in the visited network without unnecessary homing of subscriber calls.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If CAMEL homing service is used to execute web services in home network, then service execution capability is improved, but inter-PLMN connection complexity increases and resource utilization deteriorates

Engineering Contradiction:
Improveservice execution capabilityVSAvoidinter-PLMN connection complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent introduces a CAMEL relay function as an intermediary component that mediates between the visited network and home network. This relay function translates CAMEL operations into web service operations and relays them through the service delivery framework, eliminating the need for direct complex inter-PLMN call legs while maintaining service execution capability.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the traditional mechanical call leg establishment mechanism with a message relay mechanism. Instead of forcing call legs to be established for service execution, the system uses CAMEL operation translation and relay through the service delivery framework, substituting the mechanical routing approach with a more flexible message-based approach.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If call legs are established from visited network to home network for service execution, then service delivery is ensured, but resource utilization deteriorates

Engineering Contradiction:
Improveservice deliveryVSAvoidresource utilization
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The patent extracts the service execution logic from the traditional call leg-based architecture and places it within the service delivery framework. By taking out the service execution capability from the home network and embedding it in the visited network's service delivery framework, the system eliminates unnecessary call legs and optimizes resource utilization while maintaining service delivery reliability.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The visited network's service delivery framework performs service execution locally without requiring continuous backhaul to the home network. The CAMEL relay function enables the visited network to self-service by translating and executing CAMEL operations locally, reducing dependency on home network resources and optimizing overall resource utilization.

Inventive Principle:
Principle #25Self-service

3Loss of energy

If CAMEL operations are translated and relayed through service delivery framework, then resource utilization is improved, but message processing complexity increases

Engineering Contradiction:
Improveresource utilizationVSAvoidmessage processing complexity
Core Design Contradiction:
Loss of energyVSDevice complexity

Solution Approach 1:

The CAMEL relay function is designed with multi-functionality, handling both CAMEL operation translation and relay operations within a single integrated component. This universal approach consolidates multiple functions into one element, reducing overall system complexity while achieving improved resource utilization through efficient message processing.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS8811981B2Method, apparatus and computer program product for relaying CAMEL related messages in a telecommunications network
Publication Date: 2014.08.19 NOKIA SOLUTIONS & NETWORKS OY
  • US8811981B2 patent drawing
  • US8811981B2 patent drawing
  • US8811981B2 patent drawing

AI summary

The present invention refers to a method, an apparatus and a computer program product for relaying CAMEL related messages in a telecommunication network, wherein received CAMEL related messages and corresponding subscriber data are analyzed (S3), the received CAMEL related messages are translated (S5) in non-Camel messages, the non-Camel messages are relayed (S6) to a service delivery framework on the basis of the ana-lyzing result and non-CAMEL responses are received (S8) from the service delivery framework. The non-CAMEL responses are re-translated into standard CAMEL operation responses (S9), which are sent to initiator of the received CAMEL related message (S11).