Wi-Fi Integration to the 4G Mobile Network

Wi-Fi Integration to the 4G Mobile Network

by Andre Perez

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Product Details

ISBN-13: 9781786301734
Publisher: Wiley
Publication date: 05/08/2018
Pages: 288
Product dimensions: 6.30(w) x 9.40(h) x 0.80(d)

About the Author

PEREZ, ANDRE - Consultant

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Table of Contents

List of Abbreviations xi

Introduction xxiii

Chapter 1 Architecture Based on Wi-Fi Access 1

1.1 Functional architecture 1

1.1.1 Architecture based on the S2a interface 1

1.1.2 Architecture based on the S2b interface 4

1.1.3 Architecture based on the S2c interface 7

1.2 Tunnel establishment 8

1.2.1 Architecture based on the S2a interface 8

1.2.2 Architecture based on the S2b interface 12

1.2.3 Architecture based on the S2c interface 13

1.3 DIAMETER protocol 14

1.3.1 AAA server interfaces 15

1.3.2 PCRF interfaces 20

Chapter 2 MAC Layer 23

2.1 Frame structure 23

2.1.1 Frame header 23

2.1.2 Structure of control frames 25

2.1.3 Structure of management frames 26

2.2 Procedures 30

2.2.1 Timers 30

2.2.2 Mobile registration 30

2.2.3 Data transfer 32

2.2.4 Clear channel assessment 34

2.2.5 Frame fragmentation 36

2.2.6 Standby management 36

2.3 Security 38

2.3.1 Security mechanism 38

2.3.2 Security policies 39

2.3.3 MAC header extension 39

2.4 Quality of service 46

2.4.1 EDCA mechanism 46

2.4.2 Impact on the MAC header 48

Chapter 3 802.11a/g Interfaces 49

3.1 802.11a interface 49

3.1.1 PLCP sub-layer 49

3.1.2 PMD sub-layer 51

3.2 802.11g interface 58

3.2.1 PLCP sub-layer 58

3.2.2 PMD sub-layer 61

Chapter 4 802.11n Interface 63

4.1 MAC layer evolution 63

4.1.1 Management frames 64

4.1.2 Structure of the MAC header 66

4.1.3 Frame aggregation 68

4.1.4 Control frames 70

4.2 PLCP sub-layer 72

4.3 PMD sub-layer 75

4.3.1 Transmission chain 75

4.3.2 Frequency plan 78

4.3.3 Frequency multiplexing 78

4.3.4 Space multiplexing 79

4.3.5 Modulation and coding scheme 81

Chapter 5 802.11ac Interface 85

5.1 MAC layer 85

5.1.1 Management frame evolution 85

5.1.2 Control frames 89

5.1.3 MAC header structure 90

5.2 PLCP sub-layer 92

5.3 PMD sub-layer 94

5.3.1 Transmission chain 94

5.3.2 Frequency plan 99

5.3.3 Frequency multiplexing 100

5.3.4 Spatial multiplexing 101

5.3.5 Modulation and coding scheme 102

Chapter 6 Mutual Authentication 105

6.1 802.1x mechanism 105

6.1.1 EAPOL protocol 107

6.1.2 EAP 109

6.1.3 RADIUS messages 111

6.1.4 Authentication procedure 112

6.2 Key management 114

6.2.1 Key hierarchy 114

6.2.2 Four-way handshake procedure 115

6.2.3 Group Key Handshake procedure 116

6.3 Application to the 4G mobile network 117

6.3.1 EAP-AKA method 117

6.3.2 Mutual authentication procedure 118

6.3.3 Procedure for rapid renewal of authentication 121

6.3.4 Application to the MIPv4 FA mechanism 122

Chapter 7 SWu Tunnel Establishment 125

7.1 IPSec mechanism 125

7.1.1 Header extensions 127

7.1.2 IKEv2 protocol 131

7.1.3 Procedure 137

7.2 Application to the 4G mobile network 142

7.2.1 SWu tunnel establishment procedure 142

7.2.2 Procedure for rapid renewal of authentication 145

Chapter 8 S2a/S2b Tunnel Establishment 147

8.1 PMIPv6 mechanism 147

8.1.1 Mobility extension 148

8.1.2 Procedures 149

8.1.3 Application to the 4G mobile network 151

8.2 GTPv2 mechanism 155

8.2.1 Trusted Wi-Fi access 156

8.2.2 Untrusted Wi-Fi access 158

8.3 MIPv4 FA mechanism 158

8.3.1 Components of mobility 158

8.3.2 Foreign agent discovery 159

8.3.3 Registration 160

8.3.4 Procedure 160

8.3.5 Application to the 4G mobile network 162

Chapter 9 S2c Tunnel Establishment 165

9.1 MIPv6 mechanism 165

9.1.1 IPv6 header extensions 166

9.1.2 ICMPv6 messages 169

9.1.3 Procedures 171

9.2 DSMIPv6 mechanism 177

9.3 Application to the 4G mobile network 178

9.3.1 Trusted Wi-Fi access 178

9.3.2 Untrusted Wi-Fi access 179

9.3.3 IFOM function 180

Chapter 10 Network Discovery and Selection 183

10.1 Mechanisms defined by 3GPP organization 183

10.1.1 ANDSF function 183

10.1.2 RAN assistance 191

10.2 Mechanisms defined by IEEE and WFA organizations 192

10.2.1 Information elements provided by the beacon 194

10.2.2 Information elements provided by the ANQP server 195

Chapter 11 Carrier Aggregation 201

11.1 Functional architecture 201

11.2 Protocol architecture 202

11.2.1 LWA 202

11.2.2 LWIP aggregation 205

11.2.3 LAA aggregation 207

11.3 Procedures 207

11.3.1 LWA 207

11.3.2 LWIP aggregation 211

11.3.3 LAA aggregation 212

11.4 PDCP 214

Chapter 12 MPTCP Aggregation 217

12.1 Functional architecture 217

12.2 TCP 218

12.2.1 TCP header 218

12.2.2 Opening and closing a connection 220

12.2.3 Data transfer 221

12.2.4 Slow Start and Congestion Avoidance mechanisms 221

12.2.5 Fast Retransmit and Fast Recovery mechanisms 222

12.2.6 ECN mechanism 224

12.3 MPTCP 226

12.3.1 Establishment of MPTCP connection 227

12.3.2 Adding a TCP connection 227

12.3.3 Data transfer 229

12.3.4 Closing an MPTCP connection 231

12.3.5 Adding and removing an address 233

12.3.6 Return to the TCP connection 234

Bibliography 235

Index 239

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