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E-grāmata: Voice over LTE: VoLTE

4.08/5 (23 ratings by Goodreads)
(Nokia Siemens Networks), (Nokia, Finland), (Nokia, Finland), (Nokia, Finland), (Nokia Siemens Networks)
  • Formāts: EPUB+DRM
  • Izdošanas datums: 30-Jan-2012
  • Izdevniecība: John Wiley & Sons Inc
  • Valoda: eng
  • ISBN-13: 9781119945765
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  • Formāts: EPUB+DRM
  • Izdošanas datums: 30-Jan-2012
  • Izdevniecība: John Wiley & Sons Inc
  • Valoda: eng
  • ISBN-13: 9781119945765
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"Describes the Voice over LTE (VoLTE) technological solutions and standards which will enable the migration of voice and SMS services over to LTE/SAE networksCovering radio, packet core and IMS, this book gives a holistic and system-wide view on how voice and SMS services will be provided in 4G mobile networks. Starting from the existing standards, it then gives readers an unbiased and end-to-end view of the standardized future voice technology. The various elements are described from a functional and logical perspective, before the authors explain how the system works from the perspective of call setup and mobility. It also takes an in-depth look at the most important technological issues, and allows readers to judge which of the different alternatives should be chosen for real network scenarios. Covering the technical and practical elements of Voice over LTE (VoLTE), this book explains the various approaches for providing voice services over LTE, a key network due for imminent roll out Focuses on the most important technological issues and allows readers to judge which of the different alternatives should be chosen for a real network Brings vital information for decision makers and those working on the technology and related products, as LTE has substantial cost-saving potential Authors bring a mixed of standards and product background, guaranteeing in-depth practical and standards information Whether a decision maker or technology analyst, this book explains a topic of substantial global market interest in the topic both now and in years to come. It gives a good technical introduction in the area of Voice over LTE and is useful for operators who think of deploying VoLTE, product managers responsible for VoLTE products and also those who work in implementation and standardization of related technologies. "--



Describes the technological solutions and standards which will enable the migration of voice and SMS services over to LTE/EPC networks

Main drivers for the introduction of Long Term Evolution of UTRAN (LTE) is to provide far better end user experience for mobile broadband services. However, service providers also need to have a clear strategy of how to offer voice and messaging services for consumers and enterprises. The voice service over LTE is becoming increasingly important when the smartphone penetration is increasing rapidly. Smartphones require both good quality voice and high speed broadband data.

This book provides the exhaustive view to industry-approved technologies and standards behind the Voice over LTE (VoLTE). Whether a decision maker or technology analyst, this book explains a topic of substantial global market interest. It provides a good introduction to the technology and is useful for operators who may be deploying VoLTE, product managers responsible for VoLTE products and those who work in implementation and standardization of related technologies.

  • Provides a comprehensive overview of industry-approved technologies and standards, providing vital information for decision makers and those working on the technology
  • Written by authors working at the cutting edge of mobile communications technology today, bringing a mix of standards and product background, guaranteeing in-depth practical and standards information
  • Covering the technical and practical elements of VoLTE, explaining the various approaches for providing voice services over LTE

Recenzijas

It provides a good introduction to the technology and is useful for operators who may be deploying VoLTE, product managers responsible for VoLTE products and those who work in implementation and standardization of related technologies.  (Radio Electronics, 1 August 2012)

Preface ix
Acknowledgements xi
List of Abbreviations
xiii
1 Background
1(4)
2 VoLTE Deployment Strategies
5(4)
2.1 Common Networks Everywhere
5(1)
2.2 GSM/WCDMA View
6(1)
2.3 CDMA View
6(3)
3 VoLTE System Architecture
9(38)
3.1 Overview
9(1)
3.2 LTE Radio
10(4)
3.2.1 LTE Radio Background
10(1)
3.2.2 LTE Radio Architecture
11(3)
3.3 Evolved Packet Core
14(8)
3.3.1 What is the Evolved Packet Core?
14(1)
3.3.2 EPC Entities and Functionalities
14(3)
3.3.3 EPS Mobility Management
17(3)
3.3.4 EPS Session Management and QoS
20(2)
3.4 Control
22(22)
3.4.1 What is an IP Multimedia Subsystem?
22(1)
3.4.2 IMS Development History
23(3)
3.4.3 IMS Fundamentals
26(6)
3.4.4 IMS Entities
32(10)
3.4.5 Home Subscriber Server
42(1)
3.4.6 Policy and Charging Rule Function
43(1)
3.5 Summary
44(3)
4 VoLTE Functionality
47(52)
4.1 Overview
47(1)
4.2 Radio Functionalities
47(11)
4.2.1 Bearers and Scheduling
47(2)
4.2.2 Mobility
49(2)
4.2.3 Circuit Switched Fallback Handover
51(3)
4.2.4 Mobility from 2G/3G Back to LTE
54(1)
4.2.5 Power Saving Features
55(1)
4.2.6 Positioning Solutions
56(1)
4.2.7 UE Radio Access Capabilities for VoLTE
57(1)
4.3 EPC Functionalities
58(7)
4.3.1 LTE subscriber identification
59(1)
4.3.2 PDN Connectivity Establishment for the VoLTE User
60(5)
4.3.3 EPS Dedicated Bearer Setup
65(1)
4.4 IMS Identification
65(6)
4.4.1 IP Multimedia Services Identity Module
66(1)
4.4.2 Public User Identity
67(1)
4.4.3 Private User Identity
67(1)
4.4.4 Relationship between Private and Public User Identities
67(1)
4.4.5 Identification of User's Device
68(2)
4.4.6 Identification of Network Entities
70(1)
4.4.7 Identification of Services (Public Service Identities)
70(1)
4.4.8 Identification Without ISIM
70(1)
4.5 IMS Service Provisioning
71(8)
4.5.1 Enforcement of Allowed Services
72(1)
4.5.2 Service-Triggering Information
73(2)
4.5.3 Selection of AS
75(1)
4.5.4 AS Behaviour
75(1)
4.5.5 Service Provisioning in Action
76(3)
4.6 IMS Multimedia Telephony
79(20)
4.6.1 Introduction
79(1)
4.6.2 Multimedia Communication
80(1)
4.6.3 Supplementary Services
81(18)
5 VoLTE End to End and Signalling
99(118)
5.1 Overview
99(1)
5.2 VoLTE Subscription and Device Configuration
100(2)
5.3 EPS Attach for CSFB/IMS VoIP and Default Bearer Activation
102(5)
5.4 IMS Registration
107(11)
5.4.1 Constructing the REGISTER Request
109(1)
5.4.2 From the UE to the P-CSCF
110(1)
5.4.3 From the P-CSCF to the I-CSCF
110(1)
5.4.4 From the I-CSCF to the S-CSCF
111(1)
5.4.5 S-CSCF Challenges the UE
111(1)
5.4.6 UE's Response to the Challenge
112(1)
5.4.7 Registration at the S-CSCF
113(1)
5.4.8 The 200 (OK) Response
113(1)
5.4.9 Third-Party Registration to Application Servers
114(1)
5.4.10 Subscription to Registration Event Package
115(1)
5.4.11 Re-Registration and Re-Authentication
115(1)
5.4.12 De-Registration
116(1)
5.4.13 Related Standards
117(1)
5.5 IMS VoIP Session
118(26)
5.5.1 Constructing the INVITE Request
120(2)
5.5.2 Routing
122(5)
5.5.3 Media Negotiation
127(2)
5.5.4 Media Resource Reservation and Policy Control
129(6)
5.5.5 Charging
135(6)
5.5.6 Session Release
141(2)
5.5.7 Related Standards
143(1)
5.6 Voice Continuity
144(16)
5.6.1 PS-PS Intersystem Handover
144(1)
5.6.2 Single Radio Voice Call Continuity
145(12)
5.6.3 Summary
157(3)
5.7 IMS Emergency Session
160(4)
5.7.1 PDN Connection Setup for Emergency Session
160(1)
5.7.2 Emergency Registration
161(2)
5.7.3 Emergency Session
163(1)
5.8 CS Fallback for Evolved Packet System Call Case(s)
164(30)
5.8.1 Architecture of CS Fallback for EPS
166(2)
5.8.2 Description of SGs Interface
168(1)
5.8.3 Idle Mode Signalling Reduction and Use of CS Fallback for EPS
169(3)
5.8.4 Idle Mode versus Active Mode UE with CS Fallback for EPS
172(1)
5.8.5 CS Fallback Attachment
173(1)
5.8.6 Mobile Originating Call Using CSFB
174(6)
5.8.7 Mobile Terminating Call Using CSFB
180(7)
5.8.8 Call Unrelated CSFB Procedures
187(2)
5.8.9 Mobile Terminating Roaming Retry and Forwarding
189(4)
5.8.10 Summary
193(1)
5.9 VoLTE Messaging
194(23)
5.9.1 Native IMS Messaging
194(2)
5.9.2 SMS Interworking
196(18)
5.9.3 Multimedia Messaging Service
214(1)
5.9.4 Unstructured Supplementary Services Data Simulation in IMS
214(1)
5.9.5 Summary
215(2)
6 IMS Centralized Services
217(6)
7 VoLTE Radio Performance
223(6)
7.1 Coverage
223(1)
7.2 Capacity
224(2)
7.3 Latency
226(2)
7.4 Summary
228(1)
8 HSPA Voice over IP
229(4)
References 233(4)
Index 237
Miikka Poikselkä, Program Manager, NSN, Finland.

Harri Holma, Principal Engineer, NSN (NSN Fellow), Finland.

Jukka Hongisto, Solution Architect, NSN, Finland.

Juha Kallio, Architect, NSN, Finland.

Antti Toskala, Head of 3GPP Radio Standardization, Finland. The authors are all with Nokia Siemens Networks (NSN) in Finland working on the cutting edge technologies for mobile communications today. They are involved with 3GPP Standardisation, and technical aspects, ensuring they are a in key position to write on this important topic.