Reliance 2G-3G PS Core HLD ver 2.0.pdf

7/26/2019 Reliance 2G-3G PS Core HLD ver 2.0.pdf

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2G/3G Mobile Packet Core Solution Document Page 2 of 36

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1 Introduction ....................................................................................................................... 4

2 ASR5000 Overview .......................................................................................................... 4

3 Hardware Configuration and Redundancy ........................................................................ 7

4 inPilot Platform .................................................................................................................. 8

4.1 Inline Services Reporting Solution (inPilot) ....................................................................... 9

4.2 inPilot Reports .................................................................................................................. 9

5 Network Overview ........................................................................................................... 10

6 Interface Support ............................................................................................................ 14

7 Current 2G Network ........................................................................................................ 18

7.1 SGSN (Serving GPRS Support Node) ............................................................................ 18

7.2 GGSN (Gateway GPRS Support Node) ......................................................................... 19

7.3 Charging Gateway .......................................................................................................... 20

7.4 Lawful Interception .......................................................................................................... 20

7.5 HLR ................................................................................................................................. 21

7.6 Intelligent Network .......................................................................................................... 21

7.7 NMS (Network Monitoring System) ................................................................................ 21

8 ASR5000 CGSN Deployment and 2G APN Migration (Soft-Launch) ............................. 22

8.1 Charging ......................................................................................................................... 23

8.1.1 Post-paid Charging ......................................................................................................... 23

8.1.2 Pre-paid Charging ........................................................................................................... 24

8.2 Services .......................................................................................................................... 26

8.2.1 Internet ............................................................................................................................ 26

8.2.2 WAP ................................................................................................................................ 268.2.3 MMS ............................................................................................................................... 26

8.2.4 Blackberry ....................................................................................................................... 26

8.2.5 WDVPN .......................................................................................................................... 27

8.2.6 Roaming ......................................................................................................................... 27

8.3 Deep Packet Inspection (DPI) ........................................................................................ 27

8.4 PCRF .............................................................................................................................. 27

8.5 Mediation Interface for CDR Handling ............................................................................ 28

9 WAP/MIG Integration ...................................................................................................... 29

9.1 Challenge ........................................................................................................................ 29

9.2 Physical Connectivity ...................................................................................................... 299.3 Logical Link and Routing Protocol .................................................................................. 29

9.4 Solution and Role of Cisco ............................................................................................. 29

9.5 Charging ......................................................................................................................... 30

9.6 Scope Classification for MIG / Dependencies ................................................................ 30

10 GERAN Migration from Huawei SGSN to ASR5000 CGSN (Phase-2) .......................... 31

11 CGSN Expansion 1 (Jan2014) .................................................................................... 32

11.1 Hardware & Software Augmentation .............................................................................. 32

11.2 Capacity Details .............................................................................................................. 33

11.3 Features and Functionality ............................................................................................. 35


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GGSN

Cisco

7609-A

Cisco

7609-B

Firewall-A Firewall-B

Big F5-A

Big F5-B

VLAN-MIG-A1

VLAN-MIG-A2

VLAN-MIG-A1

VLAN-MIG-A2

Ingress and Egress will flow using the same VLAN

Ingress and Egress will flow using the same VLAN

Common Trunk

Reliance InternetNetwork (RIN)

Reliance DataNetwork (RDN)

10-GigE

Interface

10-GigE

Interface

10-GigE

Interface

10-GigE

Interface

10-GigE

Interface

10-GigE

Interface

10-GigE

Interface

10-GigE

Interface

! NAT of 221.5 (Old WAP) IP with MIG IP at

Packet core Firewall

! Primary Local NAT IP of MIG to be routed

towards Big F5

! Secondary MIG DR NAT IP to be routed

towards RDN

Ingress to MIG

egress from MIG


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Reliance 2G-3G PS Core HLD ver 2.0.pdf

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