Book contents
- Frontmatter
- Contents
- Preface
- List of abbreviations
- Introduction
- Part I Voice-quality foundations
- Part II Applications
- Part III Wireless architectures
- Part IV A network operator's guide for selecting, appraising, and testing a VQS
- 9 A network operator's guide to testing and appraising voice-quality systems
- 10 Service provider's system, management, and delivery requirements
- 11 Making economically sound investment decisions concerning voice-quality systems
- Part V Managing the network
- Part VI Afterthoughts and some fresh ideas
- Part VII Recordings
- Glossary of common voice-quality systems terminology
- Brief summary of echo cancelation and VQS major standards
- Brief summary of key voice-quality assessment standards
- Bibliography
- Index
10 - Service provider's system, management, and delivery requirements
Published online by Cambridge University Press: 24 May 2010
- Frontmatter
- Contents
- Preface
- List of abbreviations
- Introduction
- Part I Voice-quality foundations
- Part II Applications
- Part III Wireless architectures
- Part IV A network operator's guide for selecting, appraising, and testing a VQS
- 9 A network operator's guide to testing and appraising voice-quality systems
- 10 Service provider's system, management, and delivery requirements
- 11 Making economically sound investment decisions concerning voice-quality systems
- Part V Managing the network
- Part VI Afterthoughts and some fresh ideas
- Part VII Recordings
- Glossary of common voice-quality systems terminology
- Brief summary of echo cancelation and VQS major standards
- Brief summary of key voice-quality assessment standards
- Bibliography
- Index
Summary
Introduction
Chapter 10 presents a basic template that may be used by service providers as part of their request for information from vendors. The chapter elaborates on the various elements beyond voice performance that make the VQS easy to manage and easy to integrate within the operation of the network. The information is rather dry, but highly useful as a reference. Readers of the book who are not interested in the system engineering and operational requirements may skip this chapter in their pursuit for understanding of the magic that make voice-quality systems enhance speech communications.
Management-systems overview
General requirements
Owing to business requirements, a centralized network-management system for VQS is necessary. A VQS management system is an integral part of the operations-support system, which provides the management backbone for the entire service offered by the mobile carrier. As a rule, a management-system architecture operates in a hierarchical structure, as shown in Figure 10.1. The lowest level in the hierarchy is the element-management system (EMS). It allows network operators to monitor the alarm status of individual systems from a centralized (remote) location; it reviews current and historical alarm records; it controls individual systems; it examines equipment-inventory information; it provides equipment parameters; it operates equipment functions; and it analyzes alarm information.
The second level in the hierarchy is the network-management system. This system collects information from all EMS in the network to provide a network view.
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- Fundamentals of Voice-Quality Engineering in Wireless Networks , pp. 221 - 248Publisher: Cambridge University PressPrint publication year: 2006