>> Study Group 11 : Signalling requirements and protocols
Question 8/11 – Protocol Test Specifications for NGN
(Continuation of Question 14/11 of 2001-2004)
- Motivation
Under the conditions surrounding the conversion of public telecommunication networks from circuit-switched digital networks into packet-switched ones, besides resolving the issues of building the network architecture, quality of service, network management, etc., the issues of NGN equipment testing both in terms of compatibility for various manufacturers and in terms of the compatibility of new services with the existing ones under NGN equipment operation are gaining paramount importance.
Several simultaneously proceeding processes are contributing to that:
- The increase in the range of equipment manufacturers due to the growth of the software product share in the implementation of telecommunication technical means and a greater market openness.
- The reduction of the new service development and introduction period.
- The increase in the testing cost as compared to the circuit-switched networks as a result of the equipment’s greater functionality.
The whole set of these processes leads to the testing on model networks being an expedient and efficient testing form.
Many organizations involved in NGN equipment testing now. However, under the conditions surrounding the conversion of public telephone networks into public packet telecommunication networks, unified recommendations are lacking. Such a state of things may cause difficulties to telecommunication operators, testing centers, manufacturers as long as the introduction of NGN technical means on public telecommunication networks gets expanded.
Besides, in the course of public telecommunication network development, in our view, elements of different generation networks as well as the signaling system SS No.7 and, in some cases, also CAS and NGN protocols will keep coexisting for a lengthy period of time.
- Question
Study items to be considered include, but are not limited to:
- What is the architecture of a model network for testing of NGN technical means for public telecommunication networks? Is the distributed structure relevant for NGN protocols testing?
- What types of equipment could be tested on model and/or operator networks?
- What types of services could be tested on model and/or operator networks?
- What is the list and types of tests for model network?
- What is the list and types of tests for operator network?
- What are the testing scenarios for compatibility tests?
- What are the testing scenarios for interworking tests?
- Tasks
Tasks include, but are not limited to:
- Determination of the architecture of a model network for the testing of NGN technical means for public telecommunication networks.
- Determination of the composition and types of equipment, services to be tested on model and/or operator networks for the introduction of NGN technical means on public telecommunication networks.
- Determination of the list and types of tests for model and/or operator networks during the testing of NGN technical means for their use on public telecommunication networks.
- Development of the testing programs for model networks for compatibility tests of the NGN protocols by different vendors for their use on public telecommunication networks.
- Development of the testing programs for model and/or operator networks for interworking tests between NGN protocols and existing protocols (SS ?7, CAS and so on) for their use on public telecommunication network.
- Relationships
Recommendations: Q, H, I, M Series.
Questions: 1/11 – 5/11, 7/11.
Study Groups:
ITU-T Study Group(s) responsible for NGN architecture
ITU-T Study Group(s) responsible for TMN aspects
ITU-T Study Group(s) responsible for multimedia services and applications
Standardization bodies, fora and consortia:
Organizations such as; IETF, ETSI, regional SDOs dealing with NGN
1 The word “service” in this context is not meant necessarily to represent an ITU-T-defined Service.
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