3G IP Architecture Muhamad Yopan, MBA, CCIE

Ericsson IndonesiaDec 21, 2013

GSM Node DefinitionsMS: Mobile Subscriber

The subscriber and the mobile device. BTS: Base Station Transceiver

Mobile wireless transceiver used to aggregate discrete mobile systems in the BSS. BSC: Base Station Controller

BTS aggregator and controller. Termination point for the Abis interface. BSS: Base Station Subsystem

The MS, BTS and BSC. MSC: Mobile Switching Center

Main call processing element in the mobile wireless network. Equivalent to a Class 5 switch.

VLR: Visitor Location RegisterA database that stores information related to the MSs associated with the MSC to which it is attached.

HLR: Home Location RegisterA central database that stores the subscriber information for all mobile subscribers authorized to use a given GSM network.

UMTS Node Definitions

UE User Equipment (the mobile device).

NodeBAnalogous to the BTS in the GSM/GPRS BSS, the NodeB is responsible for Ueaggregation. Uses W-CDMA for the air interface.

Radio Access Controller (RNC)Analogous to the BSC in the GSM/GPRS BSS, the RNC aggregates Iub traffic from the NodeBs in a particular region of the RAN. Responsible for air encryption, mobility management (handover), and voice/data transmission to the circuit-switched and packet-switched core.

Media Gateway (MGW) The element responsible for interworking voice traffic between and among formats (e.g. ATM AAL2 RTP/IP).

SGSN/GGSN

SGSN: Serving GPRS Support Node An interworking element responsible for providing packet access between the RAN and the Packet Switched Network (PSN). Encapsulates subscriber traffic in GTP for transmission across the Gn interface.

GGSN: Gateway GPRS Support Node An IP element responsible for de-encapsulating GTP traffic from the Gn interface and interfacing with external networks (such as the Internet).

GSM

MS

MS

BTS

BTS

MSS

CS CORE

Um

Um

Abis

Abis

A

Nb

Mc

MSS

Mc

Nc

FE C,D

gsmSSF-gsmSCF

GRAN

BSC

IN EIR SMS-C HLR

MSC-S

M-MGW

MSC-S

M-MGW

PS CORE

IP PDN

GbGiGn

GPRS

MS

MS

BTS

BTS

MSS

CS CORE

Um

Um

Abis

Abis

A

Nb

Mc

MSS

Mc

Nc

FE C,D

gsmSSF-gsmSCF

GRAN

BSC

IN EIR SMS-C HLR

MSC-S

M-MGW

MSC-S

M-MGW

SGSN GGSN

IuPS

IuCS

IP PDN

Gb

GiGn

3G

MSS

A

Nb

Mc

MSS

Mc

Nc

FE C,D

gsmSSF-gsmSCF

IN EIR SMS-C HLR

MSC-S

M-MGW

MSC-S

M-MGW

SGSN GGSN

MSBTS

Um Abis

UE

UE

Uu

Uu

Iub

Iub

IurUTRAN

BSC

RNC

RNCNodeB

NodeB

Network Schematic

RNC

PE-1

PE-2

SW-1SW-2

P-1 P-2

SGSN

PE-1

MPLS RAN

MPLS CORE

CE

Gi Network

TATA

Google

EquinixIX

Internet Gateway

GGSN

BSCMetroE

SW-1 SW-2PE-2

IN

PE-1SW-1

SW-2 PE-2

HLR MSC MGW

P-1 P-2

PCRF RADIUS

Facebook

IuB & Abis

MetroE

BTSBTS BTS

RNC

BSC

Vendors

Telecommunication companies

Sample Careers

• http://www.ericsson.com/careers

Network Engineer• Apply now • Date: Dec 2, 2013

• Ericsson Overview • Ericsson is world’s leading provider of communications technology and services. Our offerings include services, consulting, software and

infrastructure within Information and Communications Technology.Using innovation to empower people, business and society, Ericsson is working towards the Networked Society: a world connected in real time that will open up opportunities to create freedom, transform society and drive solutions to some of our planet’s greatest challenges. We are truly a global company, operating across borders in over 180 countries, offering a diverse, performance-driven culture and an innovative and engaging environment. As an Ericsson employee, you will have freedom to think big and the support to turn ideas into achievements. Continuous learning and growth opportunities allow you to acquire the knowledge and skills necessary to progress and reach your career goals. We invite you to join our team.

• Job Summary • The Network Engineer performs design, optimization and audit of a network to meet the customer requirements. The Network Engineer

role is applicable for design & optimization of RAN, Transmission, Core, OM and Services Networks. The Network Engineer can be engaged in the whole process from pre-sales of services and networks to service delivery and acceptance. The role is focused on executing design, audit and optimization services, where the network engineer is responsible for part of the solution and part of the service process. Hereby, the Network Engineer is responsible to keep time, performance and quality according to Ericsson requirements and Customer contract.

• Responsibilities & Tasks: • Identify add-on sales opportunities • Participate in knowledge sharing activities • Assist in development of a service proposal • Collect and document customer requirements

• Position Qualifications • Core Competences• Ericsson Portfolio Knowledge • Creating & Innovating • Entrepreneurial & Commercial Thinking • Applying Expertise & Technology • Analyzing • Learning & Researching • Delivering Results & Meeting Customer Expectations

Minimum Qualififcation & Experience Requirements•

Preferred Qualification & Experience Requirements• Planning, organization and executing skills. • Good communication and documentation skills. • Ability to handle customer meetings and discussions.

Open Positions for:• RNC Network Design• Radio Network Optimization• Field Project Coordination (SACME) • Document Controller• Field Project Management• Field Project Coordination (TI)• Commissioning and Integration• BSC Connectivity Design

Work Location : Sumatera & KalimantanExperience > 1 year

IP RAN System Integration Engineer

Tangent International are currently seeking a IP RAN System Integration Engineer for a 3 month rolling contract based in Singapore

Summary:- Looking for a IPRAN SI (system integrator) working on routers modernization in the IPRAN from Cisco 7609 to Cisco ASR9K.- Duration is 3 months from Jan 2014. Extendable

Responsibilities:- To start up, test, configure, integrate and commission two Cisco ASR9K routers customers exchange - To install Cisco ASR9K at customers exchange complete with cabling works, power, signal and fibers- To actively involved in POC, perform all the required test cases in UAT document- To assist IPRAN SA in producing MOP and UAT document- To work on router side for RBS and Core nodes migration to Cisco ASR9K- Shutdown of old Cisco 7609 router

Competence:- In-depth knowledge of IP networks, features and functions. - Must have an onsite IP integration experience from previous project/assignments- Requires Cisco ASR experience- Cisco certification (eg: CCIE) is added advantage- Strong customer engagement & communication skills

Please note we will not be able to consider candidate who are currently permanent at Ericsson or that have been permanent within the last 2 years