all types gprs call flow

8/10/2019 All Types GPRS Call Flow

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Confidentiality level on title masterVersion number on title masterDepartment on title master

1 Presentation title in footer 14 November 2014

Call Flow


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GPRS - Packet Domain

GGSN

Internet

Corporate

Intranet

SGSN

BGw(GRX)

Other PLMN

Gd

Gb Gr

Gp GiGp

Gn

Gf Gc

Gi

PCU

Gs

BSC

BSC

BTS

BTS

BTS

BSS

AuC

ISDN

PSTN

EIR SMSC HLR

MSC GMSC

VLRMS

Um

GPRSNode Connectivity


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Basic Call Flow

BSC

FIREWALL

GGSN

Gi DNS

Internet

IE DNS

SGSN

HLR

IP Allocated toHandset

Eg203.88.12.10


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Vodafone APNs

Product APN Name Services

Vodafone Live portalnmms WAP/Vodafone Live and MMS

Vodafone Mobile Connect www Laptop access/Vodafone mail Enterprise

VodafoneMail Ind mail.vodafone.in Vodafone mail Individual / Laptop access

Blackberry Blackberry.net Blackberry services (Enterprise / Prosumer)

iPhone iphone For iPhone devices

Vodafone VPN vpn.vodafone.in Same as WWW APN, additionally

required for configuring VPN client

> APN : Access Point Name


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SGSNBSC

FIREWALL

VodafoneLive Portal

1

2 4

6

5

7

910

portalnmms


Vodafone Live Portal - WAP(WML) Browsing

Internet

APN = portalnmms

Gateway IP Address = 10.10.1.100

URL = http://live.vodafone.in

GPRS

User

1-3) URL Send (Payload)

4-5) GGSN routes the Payload to WAP G/W via Firewall ( Routed using G/w IP Address)

6-7)WAP G/w resolves the URL name using DNS and forwards the Payload to Portal

8-10) Content of the Vodafone Live Portal is downloaded to User

3

Access to Internet via

WAP Gateway

WAPGw

Gi DNS

8


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Vodafone Mobile Connect - Web (HTML) Browsing

GPRS

User

SGSNBSC GGSN

FIREWALL

1

3 4

www.yahoo.co.in

5

APN = www

DNS

7

Access to Internet

1-3) URL Send (Payload)

4-5) GGSN routes the URL to DNS via Firewall to resolve IP

6)Payload request is forwarded to Yahoo server

7-8) Content of the yahoo web site is downloaded to User

Internet

8

6


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MMS Submission

GPRS

SGSNBSC GGSN

SMS

SMSC

SMS notification

FIREWALL MMSC

GPRS

1

2 3 4 9

6

8

10

User B

WAP G/w

5 7

User A

APN = portalnmms


Message Server = http://mms1.live.vodafone.in/mms/

Message

storage

Gi DNS

1-3) MMS Send (Payload)

4-5) GGSN routes the Payload to WAP G/W via Firewall ( Routed using G/w IP Address)

6-7)WAP G/w resolves the MMSC name using DNS and forwards the Payload to MMSC

8) MMS stores the Payload (MMS Message )

9-10) SMS notification is sent to the User B


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MMS Delivery

GPRS

User B

SGSNBSC GGSN SMSC

Delivery

notification

FIREWALLMMSC

GPRS

User AMessage

storage

7 6 5 9

2

10

WAP G/w

4 3

1

portalnmms

APN = portalnmms


Message Server = http://mms1.live.vodafone.in/mms/

1) MMS Retrieve (Payload)

2-3) MMSC retrieves the content from storage and forwards to WAPGw

6-7)WAP G/w forwards the request to GGSN through Gi firewall

6-8) User A retrieves the Payload (MMS Message )

9-10) SMS Delivery report is sent to the User A (if requested)

Gi DNS

8


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Blackberry

Internet

Enterprise Network

Blackberry

Enterprise serverMail Server

Exchange/Lotus

Outbound

SRP

port 3101

Wireless Network

RouterGGSNSGSNBSC

Handheld APN= blackberry.net

Blackberry NOC

Registration Server

Relay Server

Router

Relay Server

Listens for

SRP Connections

on port 3101

Leased Line

2x4 Mbps

Firewall


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Roaming Senario


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Call Flow - In roamer

BSC

GpFirewall

E DNSIE DNS

SGSN

HLRSTP/GMSC SRS Server

Site Router

Belgacom /

Aicent DNS

Operators EDNS

Operator

GGSN

Belgacom /

Aicent Router

GRX Router

Internet(Operator)

Gn backbone IP

203.88.2.0/23

203.88.4.0/23

AS number - 64721

Local SGSN GT converted to Mumbai GT

Non Recursive Query for DNS

SGSN SourceDestination port33824 to

40932


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Call Flow - Out roamer

BSC

GpFirewall

E DNS

(Operator)

IE DNS

(Operator)

SGSN

HLRSTP/GMSC SRS Server

Operators

Router

Operator's

forwarded DNS

Vodafone EDNS

Vodafone

GGSN

Belgacom /

Aicent Router

GRX Router

Internet(Vodafone)


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Charging Flow


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GGSN

Mumbai

EMM

Filter bases on

Region

MumbaiEMM

KolkataEMM

DelhiEMM

CDR Flow

BangaloreEMM

Bangalore

EMM

Prepaid / Postpaid IMSI

separation for Circle

PrepaidIN

system (Blr)

Postpaid -

Pune

If the circle doenot have IMSI

separationPre & Post CDR will beforwarded to both systems


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GboIP Architecture


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BSC 1

(VLAN 1)

Huawei

Switch

Primary

Secondary

Transmission

Media &

Equipment

MPBN

Extreme SW 1RedBack

Router1

IB

GP

Uplink to GPRS Core Switches for

SGSN connectivity

aggregate L3 switch

MPBN

Extreme SW 2Redback

Router2

EBGP with

Redback-2

SGSN location

EBGP with

Redback1

BSC 10

(VLAN 10)

BSC 40

(VLAN 40)

BSC 50

(VLAN 50)

GORS core

switches at

GPRS room at

Ground floor

SGSN

GboIP Architecture


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Thank you

all types gprs call flow

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