7/31/2019 1. Gsm1 (Basic Concept & Evolution)

1/22

The MobileNetwork

7/31/2019 1. Gsm1 (Basic Concept & Evolution)

2/22

Basic Concepts

7/31/2019 1. Gsm1 (Basic Concept & Evolution)

3/22

Wireless Communications Fixed Communication Mobile communication

Konsep Wireless Technology Paging (informasi one way) Cordless Telephone system (rumah) Celullar Telephone System

Konsep Celullar Jenis cell

Omni cell, pancaran kesemua arah

Sectoral Cell, lebih terarah pada satu area

Ukuran CellMacro cell , menggunakan satelit

Micro cell: AMPS, GSM, CDMA.Pico Cell : DEX, PHS, radius s/d 200 m.

7/31/2019 1. Gsm1 (Basic Concept & Evolution)

4/22

Celullar ServiceNarrowband Services Broadband Services, digunakan teknologi xDSL dll

Celullar Design & FacilitiesFrequency Re-use Roaming facility Hand over facility

Multiple Access for Wireless Comm AMPS FDMA/FDD GSM TDMA/FDD USDC TDMA/FDD JDC(Jepang) TDMA/FDD CT2 TDMA/TDD DECT TDMA/TDD

CDMA(IS-95) CDMA/TDD - USA

7/31/2019 1. Gsm1 (Basic Concept & Evolution)

5/22

A

NMSNMS

NSSNSSBSSBSS

O&M

Air

MS

7/31/2019 1. Gsm1 (Basic Concept & Evolution)

6/22

Air A

O & M

VLRMSC

VLRMSC

HLR

7/31/2019 1. Gsm1 (Basic Concept & Evolution)

7/22

LA 1

VLRMSC

LA 5

LA 4

LA 3LA 2

7/31/2019 1. Gsm1 (Basic Concept & Evolution)

8/22

BTS

TC

BSC

BSC

TCBTS

BTS

7/31/2019 1. Gsm1 (Basic Concept & Evolution)

9/22

BSC

HLR/AC/EIR

TCSM

MSC/VLR

Unix

Workstations

Database and

Communications

Servers

NMS/2000

GSM Network

Router

DataCommunicationsNetwork (DCN)

7/31/2019 1. Gsm1 (Basic Concept & Evolution)

10/22

FDMA : Frequency Division Multiple Access

SDMA : Space Division Multiple Access

TDMA : Time Division Multiple Access

CDMA : Code Division Multiple Access

7/31/2019 1. Gsm1 (Basic Concept & Evolution)

11/22

7/31/2019 1. Gsm1 (Basic Concept & Evolution)

12/22

7/31/2019 1. Gsm1 (Basic Concept & Evolution)

13/22

Generasi Teknologi Mobile Comm.

Analog Hanya layanan suara

(voice)

Beralih ke digital Layanan utama masih

voice

Layanan SMS

Utk sambungankomputer dg modem,kecepatan rendah (7-14 Kbps)

Teknologi antara (2G ke 3G) Perubahan thd arsitektur 2G

(mis. GSM ke GPRS)

Layanan data yang lebih maju(mis. WAP, ring tone, logo)

Arsitektur radio berubah utkmeng-handle peningkatanbandwidth

Human Machine Interface

mulai berubah (mis. PDA) Color display

Bluetooth dan Wireless LAN

Standar IMT-2000 Kecepatan data 144 Kbps

sampai 2 Mbps

Multimedia messaging

MPEG-4 Video

Akses internet kecepatantinggi

1G 2G 2.5G 3G

7/31/2019 1. Gsm1 (Basic Concept & Evolution)

14/22

World Subscriber, August 2000

TDMA IS-

13610%

PDC

9%

CDMA_On

e

13%

GSM

68%

Evolution of GSM to the 3rd Generation

7/31/2019 1. Gsm1 (Basic Concept & Evolution)

15/22

Evolution of GSM to the 3rd GenerationMobile System

CircuitSwitchedData

GPRS

3rd GenerationUMTS

EDGE

7/31/2019 1. Gsm1 (Basic Concept & Evolution)

16/22

7/31/2019 1. Gsm1 (Basic Concept & Evolution)

17/22

... ...

Multiple Bursts fromeach Mobile Station

One Time Slot

BTS

7/31/2019 1. Gsm1 (Basic Concept & Evolution)

18/22

7/31/2019 1. Gsm1 (Basic Concept & Evolution)

19/22

I Mode

7/31/2019 1. Gsm1 (Basic Concept & Evolution)

20/22

I-Mode

In Japan, NTT DoCoMo wanted to start earlier indelivering wireless multimedia applications

In PDC network, they add packet data extension, amarkup language (c-HTML) and lots of contentpartners.

Launching in March 1999, the number of subscribers

reached 15 millions at the end of Y2000 ( 1 millionnew subscriber per month )

Killer applications are games, horoscopes andcartoon ( entertainment!)

7/31/2019 1. Gsm1 (Basic Concept & Evolution)

21/22

Learning points from I-Mode

7/31/2019 1. Gsm1 (Basic Concept & Evolution)

22/22

What makes mobile internet take off ?

Availability of compelling content and

application

Availability of mass-market device atreasonable prices

Ease of use and hassle-free connection