BSNL 3G Roll Out Rajeev Bansal DGM (GSM & 3G), ALTTC, Ghaziabad.

BSNL 3G Roll Out

Rajeev BansalDGM (GSM amp 3G) ALTTC Ghaziabad

3GPP Network Reference Model

GMSCGMSC

GGSNGGSN

HLRHLR

EIREIR

AUCAUC

SCFSCF

SMS-IWMSC

SMS-IWMSCRNCBSUu

CN ExternalNetworks

Iur

D

USIMUSIM MEME

RNCBSUuUSIMUSIM MEME

Iub

Iub

Iu

GdGpGn+

SGSNSGSN

MSCMSC

EG

Cu

Cu

SMS-GMSC

SMS-GMSC

SGSNSGSN

MSCMSC

Gb

SMS-SC

ISDNPSTNPSPDNCSPDNPDN-Intranet-Extranet-Internet

Iu

ANUE

BSCBTSUmSIMSIM MTMT Abis A

BSS

RNS

RNS

UTRAN

NoteNot all interfaces are shown and named

F

Gf

Gr

Gn+

H

GMSCGMSC

GGSNGGSN

HLRHLR

EIREIR

AUCAUC

SCFSCF

SMS-IWMSC

SMS-IWMSCRNCBSUu

CN ExternalNetworks

Iur

D

USIMUSIM MEME

RNCBSUuUSIMUSIM MEME

Iub

Iub

Iu

GdGpGn+

SGSNSGSN

MSCMSC-S

EG

Cu

Cu

SMS-GMSC

SMS-GMSC

SGSNSGSN

MSCMGW

Gb

SMS-SC

ISDNPSTNPSPDNCSPDNPDN-Intranet-Extranet-Internet

Iu

ANUE

BSCBTSUmSIMSIM MTMT Abis A

BSS

Iu

ANUE

BSCBTSUmSIMSIM MTMT Abis A

BSS

RNS

RNS

UTRAN

NoteNot all interfaces are shown and named

F

Gf

Gr

Gn+

H

bullPrimary Site is the highest level site in the core networkndash Contains nodes both controlling and switching nodes for CS and PS respectively as well as BSC access nodesndash MSC-S M-MGw SGSN BSC nodes

bullSecondary Site are sites with local switching capability and RANaccessndash M-MGw and BSC nodes

Primary Sites Vs Secondary Sites

Primary Sites Vs Secondary Sites

Monolithic vs Layered Architecture

Monolithic vs Layered Architecture

MSC

MSC-S

MGW

MSCServer

MGW

MSC(Monolithic)

Call Control

Bearer

Migration from Monolithic to Layered architecture

GCP SIGTRAN

Control Signaling between MSC-S and M-MGw is using SS7 over IP (SIGTRAN)

BSC is connected to one M-MGw only

Each monolithic MSC is connected to SGw over TDM

Signaling between Monolithic MSC and MSC-S will be via SGw

Design Principle

MSC

MGW

MSC-S MSC-S

Monolithic MSC

SIGTRAN

BICC

TDM

Design Principle

Design Criteria1048707 Up to 6 Node-Bs grouped into one cluster of a Sub-hub1048707 Up to 4 Sub-Hub clusters grouped into 1 hub1048707 STM-1 from HubSub-Hub to RNC through BSNL media

Interfaces1048707 End node-B E1 interface1048707 Sub-Hub E1 interface STM-1 interface1048707 Hub STM-1 interface

Transport Design

Hub- Sub-HUB Architecture

3E1 for Each Node B sitesSTM-1 between RNC and Hub RBS site STM-1 between Hub RBS and Sub Hub RBS sites as STM-1 between RNC and Core networkPool of IPs for OampM Purposes and GTPU Links (RNC to SGSN) ndash 16 IP per node-B ndash 64 IPs per RNC128 IPs for OSSSeparate IMSI series for USIMSTM from Every Circle to ViG

Requirement from BSNL

1048707 Video Gateway (ViG) interconnects WCDMA core network on one side and an IP network on other It supports IP-based Video Messaging systems and Multiparty Conferencing Systems1048707 Proposed ViG offers following servicesndash Mobile to Mobile Video Callsndash Mobile to IP client (PC) video callsndash Circuit Switched Streamingndash Multi-party Video Conferencing

Video Gateway (ViG)

ViG Basic Connectivity

bull Used for Mobile to PC and PC to Mobile Video Callsbull Video Conferencing

Key Services being offered

bull1048707 Mobile to Mobile Video Call

bull1048707 Mobile Broadband (High Speed Data)

bull1048707 Video Streaming (ClipsMovies etc)

bull1048707 Mobile TV (Live TV Channels)