Voice over LTE (VoLTE)
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品牌: Miikka PoikselkäHarri HolmaJukka HongistoJuha KallioAntti Toskala
基本信息出版社:Wiley; 1 (2012年3月27日)精装:256页正文语种:英语ISBN:1119951682条形码:9781119951681商品尺寸:17.5 x 2.1 x 24.7 cm商品重量:612 gASIN:1119951682商品描述内容简介Describes the technological solutions and standards which will enable the migration of voice and SMS services over to LTE/EPC networksMain 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
目录PrefaceAcknowledgementsList of Abbreviations1 Background2 VoLTE Deployment Strategies2.1 Common Networks Everywhere2.2 GSM/WCDMA View2.3 CDMA View3 VoLTE System Architecture3.1 Overview3.2 LTE Radio3.2.1 LTE Radio Background3.2.2 LTE Radio Architecture3.3 Evolved Packet Core3.3.1 What is the Evolved Packet Core?3.3.2 EPC Entities and Functionalities3.3.3 EPS Mobility Management3.3.4 EPS Session Management and QoS3.4 Control3.4.1 What is an IP Multimedia Subsystem?3.4.2 IMS Development History3.4.3 IMS Fundamentals3.4.4 IMS Entities3.4.5 Home Subscriber Server3.4.6 Policy and Charging Rule Function3.5 Summary4 VoLTE Functionality4.1 Overview4.2 Radio Functionalities4.2.1 Bearers and Scheduling4.2.2 Mobility4.2.3 Circuit Switched Fallback Handover4.2.4 Mobility from 2G/3G Back to LTE4.2.5 Power Saving Features4.2.6 Positioning Solutions4.2.7 UE Radio Access Capabilities for VoLTE4.3 EPC Functionalities4.3.1 LTE subscriber identification4.3.2 PDN Connectivity Establishment for the VoLTE User4.3.3 EPS Dedicated Bearer Setup4.4 IMS Identification4.4.1 IP Multimedia Services Identity Module4.4.2 Public User Identity4.4.3 Private User Identity4.4.4 Relationship between Private and Public User Identities4.4.5 Identification of User’s Device4.4.6 Identification of Network Entities4.4.7 Identification of Services (Public Service Identities)4.4.8 Identification Without ISIM4.5 IMS Service Provisioning4.5.1 Enforcement of Allowed Services4.5.2 Service-Triggering Information4.5.3 Selection of AS4.5.4 AS Behaviour4.5.5 Service Provisioning in Action4.6 IMS Multimedia Telephony4.6.1 Introduction4.6.2 Multimedia Communication4.6.3 Supplementary Services5 VoLTE End to End and Signalling5.1 Overview5.2 VoLTE Subscription and Device Configuration5.3 EPS Attach for CSFB/IMS VoIP and Default Bearer Activation5.4 IMS Registration5.4.1 Constructing the REGISTER Request5.4.2 From the UE to the P-CSCF5.4.3 From the P-CSCF to the I-CSCF5.4.4 From the I-CSCF to the S-CSCF5.4.5 S-CSCF Challenges the UE5.4.6 UE’s Response to the Challenge5.4.7 Registration at the S-CSCF5.4.8 The 200 (OK) Response5.4.9 Third-Party Registration to Application Servers5.4.10 Subscription to Registration Event Package5.4.11 Re-Registration and Re-Authentication5.4.12 De-Registration5.4.13 Related Standards5.5 IMS VoIP Session5.5.1 Constructing the INVITE Request5.5.2 Routing5.5.3 Media Negotiation5.5.4 Media Resource Reservation and Policy Control5.5.5 Charging5.5.6 Session Release5.5.7 Related Standards5.6 Voice Continuity5.6.1 PS-PS Intersystem Handover5.6.2 Single Radio Voice Call Continuity5.6.3 Summary5.7 IMS Emergency Session5.7.1 PDN Connection Setup for Emergency Session5.7.2 Emergency Registration5.7.3 Emergency Session5.8 CS Fallback for Evolved Packet System Call Case(s)5.8.1 Architecture of CS Fallback for EPS5.8.2 Description of SGs Interface5.8.3 Idle Mode Signalling Reduction and Use of CS Fallback for EPS5.8.4 Idle Mode versus Active Mode UE with CS Fallback for EPS5.8.5 CS Fallback Attachment5.8.6 Mobile Originating Call Using CSFB5.8.7 Mobile Terminating Call Using CSFB5.8.8 Call Unrelated CSFB Procedures5.8.9 Mobile Terminating Roaming Retry and Forwarding5.8.10 Summary5.9 VoLTE Messaging5.9.1 Native IMS Messaging5.9.2 SMS Interworking5.9.3 Multimedia Messaging Service5.9.4 Unstructured Supplementary Services Data Simulation in IMS5.9.5 Summary6 IMS Centralized Services7 VoLTE Radio Performance7.1 Coverage7.2 Capacity7.3 Latency7.4 Summary8 HSPA Voice over IPReferencesIndex
