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