Voice over LTE (VoLTE)

ISBN-10: 1119951682
ISBN-13: 9781119951681
Edition: 2012
List price: $165.95 Buy it from $116.51
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Description: 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  More...

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Book details

List price: $165.95
Copyright year: 2012
Publisher: John Wiley & Sons, Limited
Publication date: 2/17/2012
Binding: Hardcover
Pages: 266
Size: 6.75" wide x 9.50" long x 0.75" tall
Weight: 1.188
Language: English

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 outFocuses on the most important technological issues and allows readers to judge which of the different alternatives should be chosen for a real networkBrings vital information for decision makers and those working on the technology and related products, as LTE has substantial cost–saving potentialAuthors bring a mixed of standards and product background, guaranteeing in–depth practical and standards informationWhether 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. 

Preface
Acknowledgements
List of Abbreviations
Background
VoLTE Deployment Strategies
Common Networks Everywhere
GSM/WCDMA View
CDMA View
VoLTE System Architecture
Overview
LTE Radio
LTE Radio Background
LTE Radio Architecture
Evolved Packet Core
What is the Evolved Packet Core?
EPC Entities and Functionalities
EPS Mobility Management
EPS Session Management and QoS
Control
What is an IP Multimedia Subsystem?
IMS Development History
IMS Fundamentals
IMS Entities
Home Subscriber Server
Policy and Charging Rule Function
Summary
VoLTE Functionality
Overview
Radio Functionalities
Bearers and Scheduling
Mobility
Circuit Switched Fallback Handover
Mobility from 2G/3G Back to LTE
Power Saving Features
Positioning Solutions
UE Radio Access Capabilities for VoLTE
EPC Functionalities
LTE subscriber identification
PDN Connectivity Establishment for the VoLTE User
EPS Dedicated Bearer Setup
IMS Identification
IP Multimedia Services Identity Module
Public User Identity
Private User Identity
Relationship between Private and Public User Identities
Identification of User's Device
Identification of Network Entities
Identification of Services (Public Service Identities)
Identification Without ISIM
IMS Service Provisioning
Enforcement of Allowed Services
Service-Triggering Information
Selection of AS
AS Behaviour
Service Provisioning in Action
IMS Multimedia Telephony
Introduction
Multimedia Communication
Supplementary Services
VoLTE End to End and Signalling
Overview
VoLTE Subscription and Device Configuration
EPS Attach for CSFB/IMS VoIP and Default Bearer Activation
IMS Registration
Constructing the REGISTER Request
From the UE to the P-CSCF
From the P-CSCF to the I-CSCF
From the I-CSCF to the S-CSCF
S-CSCF Challenges the UE
UE's Response to the Challenge
Registration at the S-CSCF
The 200 (OK) Response
Third-Party Registration to Application Servers
Subscription to Registration Event Package
Re-Registration and Re-Authentication
De-Registration
Related Standards
IMS VoIP Session
Constructing the INVITE Request
Routing
Media Negotiation
Media Resource Reservation and Policy Control
Charging
Session Release
Related Standards
Voice Continuity
PS-PS Intersystem Handover
Single Radio Voice Call Continuity
Summary
IMS Emergency Session
PDN Connection Setup for Emergency Session
Emergency Registration
Emergency Session
CS Fallback for Evolved Packet System Call Case(s)
Architecture of CS Fallback for EPS
Description of SGs Interface
Idle Mode Signalling Reduction and Use of CS Fallback for EPS
Idle Mode versus Active Mode UE with CS Fallback for EPS
CS Fallback Attachment
Mobile Originating Call Using CSFB
Mobile Terminating Call Using CSFB
Call Unrelated CSFB Procedures
Mobile Terminating Roaming Retry and Forwarding
Summary
VoLTE Messaging
Native IMS Messaging
SMS Interworking
Multimedia Messaging Service
Unstructured Supplementary Services Data Simulation in IMS
Summary
IMS Centralized Services
VoLTE Radio Performance
Coverage
Capacity
Latency
Summary
HSPA Voice over IP
References
Index

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