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LOGO 1 Alfin Hikmaturokhman.,ST.,MT
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Page 1: LOGO - alfin.dosen.st3telkom.ac.idalfin.dosen.st3telkom.ac.id/.../sites/8/2015/12/2G-3G-RF-Planning.pdf · BCCH carriers dan TCH carriers . LOGO ... Requirements for SC planning 1.

LOGO

1 Alfin Hikmaturokhman.,ST.,MT

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LOGO

Personal Data

Name : ALFIN HIKMATUROKHMAN,ST.,MT.

E-Mail : [email protected]

FB : https://www.facebook.com/alfinh

Website : http://rfoptimisation.blogspot.com/

Linkedin : http://www.linkedin.com/in/alfin

Alfin Hikmaturokhman.,ST.,MT 2

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LOGO

Formal Education

2009 – 2011

Electrical Engineering Majoring in Telecommunication IT TELKOM Bandung, Master Degree (S2)

2000 – 2002

Electrical Engineering Majoring in Telecommunication Gadjah Mada University (UGM) Yogyakarta, Bachelor Degree (S1)

1997- 2000

Electrical Engineering Majoring in Telecommunication Gadjah Mada University (UGM) Yogyakarta, Diploma (D3)

1994 – 1997 SMAN I Purwokerto Banyumas

1991 –1994 SMPN 2 Ajibarang Banyumas

1985 –1991 SD MIMA Ajibarang Banyumas

Alfin Hikmaturokhman.,ST.,MT 3

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LOGO Work Experiences

1 November 2003 – Now

TELCO TRAINER (PT Telkom, PT Huawei Services, PT Inti, PT LEN Indonesia, PT Alita Praya Mitra , PT Moratelindo , PT Lexcorp, PT Bali Tower , Balmon Kominfo Kendari, UGM, Pens ITS , UII Yogyakarta dll)

4G Lte RF Planning for 4 Big City (Jakarta, Bandung, Surabaya and Semarang)

LECTURER at STT Telematika Telkom Purwokerto and Cisco Instructure

Sept - Dec 2015 Joint Research Between Universitas Indonesia (UI) and BP3TI (Kominfo)

1 February 2011 Wireless Huawei Single RAN GSM and UMTS Trainer for Asia Pacifik Area

June - Oktober 2003 RF Optimization Engineer at PT Infocom Transmedia Utama (Samsung)

June 2002 – June 2003 PT INDOSAT BATAM working on Technical Support and Account Executive

Alfin Hikmaturokhman.,ST.,MT 4

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LOGO Pembicara Perguruan Tinggi

Alfin Hikmaturokhman.,ST.,MT 5

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LOGO Pembicara Industri

6 Alfin Hikmaturokhman.,ST.,MT

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LOGO

2G Frequency Allocation

Alfin Hikmaturokhman.,ST.,MT 7

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LOGO

2G – 900 Mhz & 1800 Mhz

Alfin Hikmaturokhman.,ST.,MT 8

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LOGO

Indonesia Frequency Usage on 800-900 MHz

Alfin Hikmaturokhman.,ST.,MT 9

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LOGO Indonesia Frequency Usage on 1400-1800 MHz

Alfin Hikmaturokhman.,ST.,MT 10

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LOGO

Alokasi Frekuensi 900 Mhz dan 1800 Mhz

11 Alfin Hikmaturokhman.,ST.,MT

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Penataan frekuensi1800 Mhz

12 Alfin Hikmaturokhman.,ST.,MT

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Konsep Kanal GSM

A. KanalFisik

1 TS dalam frame TDMA merupakan1 kanal fisik.

B. Kanal Logik

- Ditumpangkan dikanal fisik

- Tergantung dari jenis informasi yang ditransmisikan antara MS dan

BTS

- Jenis data : data user dan signaling / kontrol

Alfin Hikmaturokhman.,ST.,MT 13

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LOGO

TDMA Frame

Pada setiap 200 kHz frekuensi band terbagi

menjadi 8 TDMA time slot.

Jadi pada setiap satu frekuensi band

memungkinkan 8 panggilan telepon (atau 16

panggilan telepon apabila disetting halfrate

penuh) secara bersamaan.

Satu urut-urutan 8 TDMA timeslot disebut

sebagai TDMA frame. TDMA frame berdurasi

4.615 ms sehingga durasi per tiap timeslot

adalah 0.577 ms

Alfin Hikmaturokhman.,ST.,MT 14

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LOGO

Band Frekuensi GSM

Alfin Hikmaturokhman.,ST.,MT 15

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LOGO

Alfin Hikmaturokhman.,ST.,MT 16

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LOGO

ARFCN Table

Alfin Hikmaturokhman.,ST.,MT 17

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Quiz

Berapa Frekeunsi Downlink dan Uplink yang di gunakan oleh

Operator GSM, apabil ARFCN yang dipakai adalah sbb :

1. 24

2. 100

3. 530

4. 800

Alfin Hikmaturokhman.,ST.,MT 18

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3G Frequency Allocation

.. Alokasi frekuensi untuk sistem

3G dibagi menjadi dua yaitu

sistem TDD dan sistem FDD.

Pada saat ini sistem 3G di

Indonesia menggunakan sistem

FDD.

Dengan bandwidth 5 Mhz

sistem FDD memiliki lebih

banyak frequency carrier.

Sejumlah 12 frequency carrier

sedangkan sistem TDD yang

hanya 7 frequency carrier. Alfin Hikmaturokhman.,ST.,MT 19

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LOGO

3G

Alfin Hikmaturokhman.,ST.,MT 20

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LOGO

Alfin Hikmaturokhman.,ST.,MT 21

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LOGO

Alfin Hikmaturokhman.,ST.,MT 22

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LOGO STEP BY STEP PROSES RF PLANNING

Alfin Hikmaturokhman.,ST.,MT 23

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LOGO

Analisis trafik dan coverage

Alfin Hikmaturokhman.,ST.,MT 24

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LOGO

2G Frequency Planning

Alfin Hikmaturokhman.,ST.,MT 25

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LOGO

ARFCN

Setiap operator seluler akan mendapatkan sekumpulan

ARFCN (satu ARFCN = 200 kHz) dan dibagi menjadi dua

kelompok yaitu BCCH carriers dan TCH carriers.

Alfin Hikmaturokhman.,ST.,MT 26

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Alfin Hikmaturokhman.,ST.,MT 27

BCCH Group

TCHGroup

a. 15 carriers digunakan untuk BCCH frequency

b. 24 carriers digunakan untuk TCH frequency

c. 1 carrier digunakan untuk guard band antara

BCCH carriers dan TCH carriers

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Sektor yang saling berhadapan atau berada dalam satu site

minimal harus berselisih 2 ARFCN, sektor yang memiliki

azimuth sama dan bersebelahan langsung juga harus

berselisih 2 ARFCN.

Alfin Hikmaturokhman.,ST.,MT 28

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LOGO

Concept of Frequency Reuse

Penggunaan ulang frek yang sama pada jarak tertentu.

Alfin Hikmaturokhman.,ST.,MT 29

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LOGO

Alfin Hikmaturokhman.,ST.,MT 30

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Reason Example

Frequency resource is limited. If there is 8MHz frequency

resource, 8 MHz = 40 channels * 8 timeslots = 320

==> max. 320 users can access the network at the same time

Alfin Hikmaturokhman.,ST.,MT 31

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LOGO

GSM Interference

Alfin Hikmaturokhman.,ST.,MT 32

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LOGO

Alfin Hikmaturokhman.,ST.,MT 33

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LOGO

Co-Channel Interference

Co-Channel Interference adalah interferensi yang

disebabkan karena penggunaan frequensi yang sama oleh

cell carrier dan juga cell yang lain.

Setiap frekuensi ARFCN pada GSM mempunyai bandwidth

200 kHz.

Alfin Hikmaturokhman.,ST.,MT 34

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LOGO

Adjacent-Channel Interference

Adjacent-Channel Interference adalah interferensi yang

disebabkan karena penggunaan frequensi yang berdekatan

Setiap frequency yang adjacent (berbeda 200 kHz atau 1

ARFCN) tidak diperbolehkan memiliki sinyal yang terlalu kuat

juga. Meskipun berbeda frekuensi beberapa sinyal yang

berhimpitan frekuensinya dapat mempengaruhi kualitas.

Alfin Hikmaturokhman.,ST.,MT 35

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LOGO

Scrambling Code Planning Overview

Alfin Hikmaturokhman.,ST.,MT 36

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Scrambling Code Planning Overview

Scrambling Code are used to distinguish between different

cells on the downlink and different UE’s on the uplink.

Uplink : no planning (Order by RNC)

Downlink : Be Plan with 512 Primary SC

Alfin Hikmaturokhman.,ST.,MT 37

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Requirements for SC planning

1. All cells that a mobile station is able to measure in any location of

the network service area should have different scrambling codes.

2. No cell should have the same code as any of its neighbour cells

3. No two cells in one neighbour list should have the same code

4. When cell A and cell B both have cell C in their respective neighbour

lists, cell A and cell B should have different scrambling codes

5. In a neighbour list the number of code groups used by the neighbour

cells should be kept at minimum and consequently the number of

codes per group should be maximised

Alfin Hikmaturokhman.,ST.,MT 38

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Code Allocation

k\j 0 1 2 … 63

0 0 8 16 504

1 1 9 17 505

2 2 10 18 506

3 3 11 19 507

4 4 12 20 508

5 5 13 21 509

6 6 14 22 510

7 7 15 23 511

Scrambling codes numbering

• 512 Primary Scrambling Code

• For 512 PSC, we can create 63

group SC.

• And in one group SC have 8 PSC.

39 Alfin Hikmaturokhman.,ST.,MT

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LOGO

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Scrambling Code Strategy

Code groups

00 01 … 09 10 … 19 20 … 31 32 … 41 42 … 51 52 … 59 60 … 63

Test Reserved (9) Macro Layer (50) Pico layer (4)

Code groups

00 01 … 09 10 … 19 20 … 31 32 … 41 42 … 51 52 … 59 60 … 63

Test Reserved (9) Outdoor Layer (50) indoor layer (4)

41 Alfin Hikmaturokhman.,ST.,MT

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LOGO

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Pada saat proses plan

Scrambling Code pada

jaringan UMTS/3G. Perlu

diperhatikan re-use

scrambling code jangan

sampai scrambling code

yang sama dipakai dalam

jarak yang berdekatan.

44 Alfin Hikmaturokhman.,ST.,MT


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