planning scheme for gsm project of reliance

Wireless Network Planning Scheme for GSM/GPRS/EDGE project of Reliance

Wireless Network Planning Scheme

for Reliance Project in Mumbai city

Prepared by Chen Ni Date 2006-05-30

Reviewed by Date

Cosigned by Date

Approved by Date

2023-4-10


Contents

1 OVERVIEW.....................................................................................................................................................4

2 SYSTEM REQUIREMENT ANALYSIS FOR THIS PLANNING............................................................5

2.1 Available Spectrum required for This Planning...........................................................5

2.2 Service Grade of Planning Network..........................................................................6

2.3 Traffic Requirement...............................................................................................6

2.4 Communication Probability in Covered Areas.............................................................6

2.5 GPRS/EDGE Channel Requirements.......................................................................7

3 RADIO COVERAGE PLANNING...............................................................................................................7

3.1 Terrain and Landmark Description for the Planning Stations.........................................7

3.2 Station and Cell Planning.......................................................................................7

3.3 Valuation of Some Calculation Parameters................................................................8

3.4 Uplink/Downlink Budget Balance.............................................................................8

3.4.1 Uplink/Downlink Budget for Voice Service in city area...........................................................8

3.4.2 Uplink/Downlink Budget for Voice Service in Highway...........................................................9

3.5 Cell Coverage Radius Prediction...........................................................................10

3.6 Radio Coverage Prediction in the Planning Area......................................................11

4 NETWORK CAPACITY PLANNING........................................................................................................12

4.1 Channel Planning................................................................................................12

4.1.1 SDCCH Channel Planning........................................................................................................12

4.1.2 GPRS/EDGE Capacity Planning..............................................................................................12

4.1.3 TCH Channel Planning..............................................................................................................13

4.2 Capacity Planning...............................................................................................14

4.2.1 Capacity Planning for Scenario1 (Part A and Part B)............................................................15

4.2.2 Capacity Planning for Scenarios3 (Part A and Part B)..........................................................15

5 ROLLOUT.....................................................................................................................................................16

5.1 Rollout for Scenarios1 (Part A and Part B)...............................................................16

5.2 Rollout for Scenarios2..........................................................................................16

5.3 Rollout for Scenarios3 (Part A and Part B)...............................................................16

5.4 Comparison of Scenarios1 and Scenarios3.............................................................17

6 SIMULATION...............................................................................................................................................18

6.1 Sites Distribution.................................................................................................18

6.1.1 South Mumbai (Crawford Market / Masjid Bunder area)......................................................18

6.1.2 Navi Mumbai................................................................................................................................19

6.1.3 Highway（Delhi-Ludhiana section）.......................................................................................196.2 coverage prediction results...................................................................................23

6.2.1 South Mumbai (Crawford Market / Masjid Bunder area)......................................................23


6.2.2 Navi Mumbai................................................................................................................................23

6.2.3 Highway（Delhi-Ludhiana section）.......................................................................................24

7 FREQUENCY PLANNING.........................................................................................................................28

7.1 Site Frequency Planning......................................................................................28

7.2 Anti-interference Measures...................................................................................28


1 Overview

This is a RF network planning proposal designed by ZTE Corporation for GSM/GPRS/EDGE

Project of Reliance, in India.

There are totally three scenarios set by Reliance Company in the IFQ, which can be divided

into further five scenarios in detail, and all situations are separately described as follows:

Scenarios1-Part A:

A typical GSM coverage (without considering capacity requirement), capacity & growth plans for

next three years in 1800 MHz for South Mumbai specific area (Crawford market / Masjid Bunder)

with following assumptions: -

i) Area- 2 sq Km

ii) Expected busy hour traffic – 3500 Er

iii) Yearly traffic growth- 15%

iv) Usage per sub- 45 mE

v) BHCA per sub- 3

vi) In-building penetration loss – 30 dB

vii) Outdoor Coverage probability- 99%

viii) Indoor Coverage probability- 90%

ix) Network should use EFR

Scenarios1-Part B:

A typical GSM coverage (without considering capacity requirement), capacity & growth plans for

next three years in 1800 MHz for Navi Mumbai specific area with following assumptions:

a. Area- 174 sq Km

b. Expected busy hour traffic – 5000 Er

c. Yearly traffic growth- 25 %

d. Usage per sub- 45 mE

e. BHCA per sub- 3

f. In-building penetration loss – 20 dB

g. Coverage probability- 99%

h. Indoor Coverage probability- 90%

i. Network should use EFR

Scenarios2:

A highway coverage plan (for Delhi – Ludhiana section) for 1800 MHz band assuming antenna

height of 38 meter, in-car penetration loss of 6 dB.

Scenarios3-Part A:

The plan for data requirement of scenarios1-part A, under the following assumptions (Data traffic

is in addition to voice traffic as given above): -

a. 100% subscribers are data user


b. Average usage per sub in per month – 125 MB.

c. Active PDP context – 10%

Scenarios3-Part B:

The plan for data requirement of scenarios1-part B, under the following assumptions (Data traffic

is in addition to voice traffic as given above): -




According to the upper assumptions, our wireless network planning scheme are composed of

three scenarios, each of which will be described in details in following chapters.

This document provides the wireless network planning scheme of phase x in xxx project,

including the site & cell configuration. If not provided here, all the wireless network

parameters are the defaults of the ZXG10-BSS system. Some radio parameters may be

properly adjusted in the phase of network optimization.

The parameter adjustment in the network optimization phase may effectively improve the

operation quality of the network. Network optimization is an indispensable part of the GSM

project.

The information in this document may involve commercial and technical confidential of both

ZTE and Reliance. Either party should bear the disclosure responsibility.

2 System Requirement Analysis for This Planning

2.1 Available Spectrum required for This Planning

To satisfy the capacity requirement in city A (South Mumbai), S12/12/12 will be implemented as

the max configuration, while in city B (Navi Mumbai), S888 can meet the requirement. So, in both

South Mumbai (Crawford market / Masjid Bunder) and Navi Mumbai area, we adopt 4*3

frequency reuse pattern for BCCH for GSM1800 network, and 1*3 frequency hopping for TCH,

considering 50% hopping load capability, reserving 1 frequency for isolation between BCCH and

TCH. On above assumption, the spectrum required for each scenario is listed below:

Scenarios1-Part A:

For voice service services in city South Mumbai (Crawford market / Masjid Bunder area), the

spectrum required is 15.8 MHz for GSM1800.

Scenarios1-Part B:

For voice service service in city Navi Mumbai, the spectrum required is 9.8 MHz for GSM1800.

Scenarios2:

According to IFQ of Reliance, spectrum requirement for GSM1800 on highway (for Delhi-

Ludhiana section) is not under our consideration.


Scenarios3-Part A:

For voice&data service in city South Mumbai (Crawford market/Masjid Bunder area), the

spectrum required is 15.8 MHz for GSM1800.

Scenarios3-Part B:

For voice&data service in city Navi Mumbai, the spectrum required is 11 MHz for GSM1800.

To sum up, the spectrum required by each scenario is shown as follows: (for GSM1800)

ScenariosScenarios1 -

Part A

Scenarios1 -

Part BScenarios2

Scenarios3

-Part A

Scenarios3

-Part B

Spectrum 15.8 MHz 9.8 MHz 15.8 MHz 11 MHz

2.2 Service Grade of Planning NetworkAccording to the requirements of Reliance project, the grade of service (GOS) of this planning

network and the per subscriber traffic are as follows:

ScenariosScenarios1 -

Part A

Scenarios1 -

Part BScenarios2

Scenarios3

-Part A

Scenarios3

-Part B

GOS 2% 2% 2% 2%

Traffic per

subscriber 45 mErl 45 mErl 45 mErl 45 mErl

2.3 Traffic Requirement The network will be built in 3 phases for each four situation in Scenarios1&3, which we call

“planning for cities”. And only 1 phase is taken into consideration in scenarios 2, which we call

“planning for highway” and where there’s no traffic requirement in IFQ.

The traffic for phase1 in South Mumbai (situations in Scenarios1-Part A and in Scenarios3-Part A)

is 3500 Erl, with 15% yearly traffic growth. And for planning in city Navi Mumbai (situations in

Scenarios1-Part B and in Scenarios3-Part B), the traffic requirement in phase1 is 5000 Erl, with

25% yearly traffic growth.

The voice traffic requirements in IFQ by Reliance is shown as below table:

ScenariosScenarios1 -Part

A

Scenarios1 -Part

BScenarios2

Scenarios3

-Part A

Scenarios3

-Part B

Phase1 3500 Erl 5000Erl 3500 5000

Phase2 3500*1.15 Erl 5000*1.25 Erl 3500*1.15 Erl 5000*1.25 Erl

Phase3 3500*1.15*1.15

Erl

5000*1.25*1.25

Erl

3500*1.15*1.15

Erl

5000*1.25*1.25

Erl

2.4 Communication Probability in Covered AreasIn this planning, the communication available ratio at the wireless coverage edge can be determined

as follows:

ScenariosScenarios1 -Part

A

Scenarios1 -Part

BScenarios2

Scenarios3

-Part A

Scenarios3

-Part B


Indoor

Coverage

Probability

90% 90% 90% 90%

Outdoor

Coverage

Probability

99% 99% 99% 99%

2.5 GPRS/EDGE Channel Requirements In Scenarios3 (both Part A and Part B), there are GPRS/EDGE service requirement, and our

planning scheme is based on following assumptions:




3 Radio Coverage Planning

3.1 Terrain and Landmark Description for the Planning Stations South Mumbai, the southern-most precinct of the city of Mumbai, India, comprises downtown

Mumbai and its adjoining business districts. It is the richest urban precinct in India. Our planning

area in South Mumbai (Scenarios1-Part B and Scenarios3-Part B) is called Crawford

market/Masjid Bunder area, which is sized of 2 square kilometers. It is covered by dense

buildings and thickset trees, and can be considered as dense urban area.

Navi Mumbai has been planned as a counter magnet to the present city of Mumbai. In fact, Navi

Mumbai is a planned, well balanced landscaped modern city. The new city is being developed as

a series of nodes (settlements), strung along an efficient Mass Transport System in the form of

Commuter Railway Network well connected to Mumbai, Thane and adjoining areas. The Central

Business District (CBD) of Navi Mumbai is being developed in the central part of the city, while

the residential areas are located along the four arms of Mass Transport System. Our target

planning areas in Navi Mumbai are regions where subscribers actually distribute. So there’s

no necessary to cover all 174 square km region, including swamps, forests, water, open and

quasi open areas. Instead, we focus on coverage requirements of urban, suburban, village,

industrial area and airport, with the help of Google Earth. In our planning, the target region

can be regarded as two landmark types: urban (including urban area in digital map) and

sub&rural area (including suburban, village, industrial area in digital map).

Besides, the planning Highway from Delhi to Ludhiana (Scenarios2) is about 350km long.

3.2 Station and Cell Planning For each landmark type, the coverage planning for new sites built in 3 phases is based on

following hypothesis (condition).

http://www.answers.com/main/ntquery;jsessionid=10jms9tgo5g8w?dsid=2222&dekey=Central+business+district&sbid=lc02b

http://www.answers.com/main/ntquery;jsessionid=10jms9tgo5g8w?dsid=2222&dekey=India&sbid=lc02b

http://www.answers.com/main/ntquery;jsessionid=10jms9tgo5g8w?dsid=2222&dekey=Mumbai&sbid=lc02b


Area Model

Antenna

Gain (dBi)

Antenna Half

Power Beam

width

(Horizontal)

Antenna

Height (m)

Antenna

azimuth

Antenna

downtilt

Crawford

market/Masjid

Bunder

General

Model for

macrocell

15.5 6525 0/120/240 6

Navi Mumbai

(Urban)

General

Model for

macrocell

15.5 6525

0/120/2404

Navi Mumbai

(Sub&Rural)

General

Model for

macrocell

17 6530

0/120/2402

Highway (Delhi-

Ludhiana)

General

Model for

macrocell

20 3038

Along the

highway road0

For planning of South Mumbai city (Crawford market/Masjid Bunder area) and Navi Mumbai

city, since those two areas have both voice and data traffic requirements, we adopt EDGE

carriers, with transmission power of 60w in voice service. While for highway planning, there

is only voice service requirement, so we adopt general voice carriers, with transmitted power

of 80w, adding TMA equipment and passing CDU to enhance its coverage range.

3.3 Valuation of Some Calculation Parameters In this planning, since there’s no coverage requirement of data service, we only think of coverage

planning for voice service. Parameters of the radio coverage planning for voice services are

valued as follows:

Scenarios

Crawford Market/

Masjid BunderNavi

Mumbai

Highway(Delhi-Ludhiana)

MS

Transmission

Power

1w 1w 1w

BTS

Transmission

Power

47.8dBm 47.8dBm 49dBm

MS Received

Sensitivity

-102dBm -102dBm -102dBm

BTS Received

Sensiti

-110dBm -110dBm -110dBm

Body loss 3dB 3dB 3dB

Building loss 30dB 20dB 6dB (in car loss)


Duplexer Loss 1dB 1dB 1dB

BTS Antenna

Gain

15.5dBi 15.5dBi 20dBi

Combiner Loss 4.7dB 4.7dB 1.15dB

Rayleigh Fading

Margin

3dB 3dB 3dB

Long-term

Fading Margin

8.39dB 8.39dB 4.39dB

Interference

Margin

3dB 3dB 3dB

3.4 Uplink/Downlink Budget Balance According to the system parameters and design parameters available in the context, it is possible

to analyze the uplink/downlink power balance under different conditions, as detailed below.

3.4.1 Uplink/Downlink Budget for Voice Service in city area3.4.1.1 Uplink budget

Uplink

　Crawford

market/Masjid

Bunder area

Navi Mumbai

(Urban)

Navi Mumbai

(Sub&Rural)

MS Transmission Power(1w) 30 30 30

Body Loss 3 3 3

Building Loss 30 20 20

BTS Receiving Sensitivity -110 -110 -110

BTS Antenna Gain 15.5 15.5 17

Feeder and Connector Loss 2.4025 2.4025 2.71

Duplexer Loss 1 1 1

Rayleigh Fading Margin 3 3 3

Long-term Fading Margin 8.39 8.39 8.39

Interference Margin 3 3 3

Allowed Indoor Coverage

Path Loss 104.7075 114.7075 115.91

Allowed Outdoor Coverage

Path Loss 134.7075 134.7075 135.91

3.4.1.2 Downlink budget

Downlink

　Crawford

market/Masjid

Bunder area

Navi Mumbai

(Urban)

Navi Mumbai

(Sub&Rural)

BTS Transmission

Power(60W) 47.8 47.8 47.8


Combiner Loss 4.7 4.7 4.7

BTS Antenna Gain 15.5 15.5 17

Feeder and Connector Loss 2.4025 2.4025 2.71

MS Receiving Sensitivity -102 -102 -102

Body Loss 3 3 3

Building Loss 30 20 20

Rayleigh Fading Margin 3 3 3

Long-term Fading Margin 8.39 8.39 8.39

Interference Margin 3 3 3

Allowed Indoor Coverage

Path Loss 110.8075 120.8075 122.01

Allowed Outdoor Coverage

Path Loss 140.8075 140.8075 142.01

3.4.1.3 Synthetic Uplink/Downlink Analysis

　Crawford

market/Masjid

Bunder area

Navi Mumbai

（Urban）

Navi Mumbai

（Sub&Rural）

Isotropic Path loss(indoor)

(dB) 104.7075 114.7075 115.91

Isotropic Path

loss(outdoor) (dB) 134.7075 134.7075 135.91

3.4.2 Uplink/Downlink Budget for Voice Service in Highway

3.4.2.1 Uplink budget

Uplink 　Highway(Delhi-Ludhiana)

MS Transmission Power(1w) 30

Body Loss 3

Car Penetration Loss 6

BTS Receiving Sensitivity -110

BTS Antenna Gain 20

TMA Contribution 4.634

Duplexer Loss 1

Rayleigh Fading Margin 3

Long-term Fading Margin 4.39

Interference Margin 3

Allowed Indoor Coverage Path Loss 144.244

Allowed Outdoor Coverage Path Loss 150.244


3.4.2.2 Downlink budget

Downlink 　Highway(Delhi-Ludhiana)

BTS Transmission Power(80W) 49

Combiner Loss 1.15

BTS Antenna Gain 20

Feeder and Connector Loss 3.252

MS Receiving Sensitivity -102

Body Loss 3

In-Car Loss 6

Rayleigh Fading Margin 3

Long-term Fading Margin 4.39

Interference Margin 3

Allowed Indoor Coverage Path Loss 147.208

Allowed Outdoor Coverage Path Loss 153.208

3.4.2.3 Synthetic Uplink/Downlink Analysis

　Highway(Delhi-Ludhiana)

Isotropic Path loss(indoor) (dB) 144.244

Isotropic Path loss(outdoor) (dB) 150.244

3.5 Cell Coverage Radius Prediction Since there is no coverage requirement for data service in South Mumbai (Crawford

market/Masjid Bunder area), Navi Mumbai and Highway (Delhi-Ludhiana section), we only

take into account the cell coverage radius of voice service, that is to say, coverage radius

prediction in scenarios1-Part A, scenarios1-Part B and scenarios2.

Of all communication propagation environments, the radio communication environment is the

worst and most complicated. In addition to the path loss in free space, it also affected by

slow fading and multi-path propagation, while may cause the occurrence of space selective

fading, time selective fading and frequency selective fading, and thus greatly deteriorates the

uplink/downlink receiving signals. In the design of wireless network, therefore, choosing an

approximate propagation model will lay a foundation for coverage planning and prediction

emulation.

The radius prediction in our planning is depending on General Model for macrocell:

Received Power(dBm)=Transmit Power(dBm)-Path loss(dB)

And,

Path loss=k1+k2log(d)+k3(Hms)+k4log(Hms)+k5log(Heff)+k6log(Heff)log(d)+k7diffn+C_loss

Where:

d Distance from the base station to mobile station (km).

Hms Height of the mobile station above the ground (m). This figure may be specified

either globally or for individual clutter categories.


Heff Effective base station antenna height (m).

diffn Diffraction loss calculated using either Epstein, Peterson, Deygout or Bullington

equivalent knife edge mathods.

K1&k2 Intercept and slope. These factors correspond to a constant offset (in dBm) and a

multiplying factor for the log of the distance between the base station and mobile

station.

K3 Mobile antenna height factor. Correction factor used to take into account the effective

mobile antenna height.

K4 Okumura-Hata multiplying factor for Hms.

K5 Effective antenna height gain. This is the multiplying factor for the log of the effective

antenna height.

K6 log(Heff)log(d). This is the Okumura-Hata type multiplying factor for log(Heff)log(d)

K7 Diffraction. This is a multiplying factor for diffraction calculations. A choice of

diffraction methods is available.

C_loss Clutter specifications such as heights and separation are also taken into account in

the calculation process.

Generally, k1~k7 values are various in different situation. We consider Crawford

Market/Masjid Bunder area as typical dense urban area, while viewing Navi Mumbai area as

typical urban area. Here we choose k1~k7 equivalent values as the typical dense urban and

urban areas for GSM 1800 in our prediction, which is listed as follows:

Crawford Market/

Masjid Bunder

Navi Mumbai

K1 153.36 146.03

K2 49.95 49.48

K3 -2.55 -2.55

K4 0 0

K5 -13.82 -13.82

K6 -6.55 -6.55

K7 0.65 0.8

Get the maximum allowed path loss according to the synthetic uplink/downlink signal

analysis. By using the correctional electric wave propagation empirical model,

estimate the cell coverage radius under different terrains in this planning as follow

table: (for voice service only)

For voice service only

　Crawford

market/Masjid

Bunder area

Navi Mumbai

(Urban)

Navi Mumbai

(Sub&Rural)

Highway

(Delhi-

Ludhiana)

Indoor Radius (km) 0.23 0.562 0.64 3.642

Outdoor Radius (km) 1.25 1.76 2.03 5.184


3.6 Radio Coverage Prediction in the Planning AreaTo satisfy the required in-building coverage by outdoor BTS in 1800MHz, Indoor coverage

radius in above table is viewed as benchmark in coverage planning. Coverage prediction

results in planning areas are shown below:

For voice service only

　Crawford

market/Masjid

Bunder area

Navi Mumbai

(Urban)

Navi Mumbai

(Sub&Rural)

Highway

(Delhi-

Ludhiana)

Indoor Radius (km) 0.23 0.562 0.64 3.642

Outdoor Radius (km) 1.25 1.76 2.03 5.184

The coverage simulation results are shown in chapter 6.

4 Network Capacity Planning

4.1 Channel Planning4.1.1 SDCCH Channel Planning

In addition to the service channel TCH in the GSM system, there is another important

channel: Standalone Dedicated control channel (SDCCH). It is largely related with the user

location update, IMSI attachment/detachment, call setup, short message, fax service setup

and various supplementary services. As a result, every cell should be configured with

SDCCHs of certain quantity according to the cell capacity.

As per that principle, the configured quantities of SDCCH channels in the cells with various

numbers of carriers are listed in the table below:

Number

of

Carriers

Number of

Channels

SDCCH

Channel Structure

Number of Control

Channels

(BCCH+SDCCH)

1 8 SDCCH/8 2

2 16 SDCCH/8 2

3 24 SDCCH/8 2

4 32 2×SDCCH/8 3

5 40 2×SDCCH/8 3

6 48 2×SDCCH/8 3

7 56 3×SDCCH/8 4

8 64 3×SDCCH/8 4

9 72 3×SDCCH/8 4

10 80 3×SDCCH/8 4

11 88 4×SDCCH/8 5

12 96 4×SDCCH/8 5


4.1.2 GPRS/EDGE Capacity Planning

GPRS/EDGE related requirements referred in IFQ are listed below:




The data service is in addition to the voice service in South Mumbai (Crawford market/Masjid

Bunder area) and Navi Mumbai. We adopt GPRS/EDGE co-existing network architecture

and suppose that the four coding types of GPRS (CS1, CS2, CS3 and CS4) and three

families of EDGE (Family C, B, A) are proportioned as below:

GPRS/EDGE Coding

Type

load rate of IP layer at

Um interface per

PDCH

Proportion

GPRS

CS1 6.4 0.1

CS2 9.41 0.15

CS3 11.11 0.15

CS4 15.09 0.1

FAMILY

C

MCS1 7.020.1

MCS4 13.33

FAMILY

B

MCS2 9.76

0.15MCS5 16.67

MCS7 29.63

FAMILY

A

MCS3 11.43

0.25MCS6 21.05

MCS8 36.36

MCS9 38.1

According to the above results, the average load rate of IP layer at Um interface per PDCH

can be figured out as about 20kbps.

It is supposed that there are 30 days in every month and 10 hours are busy in one day, the

average usage per subscriber per busy hour can be calculated like this:

125 (MB/sub./month) /30 (days/month) /24 (hours/day) *10 (busy hours/day) /3600

(seconds/hour) *10^6=482(bps/sub./busy hour)

Since it’s known that the GPRS/EDGE subscriber penetration ratio is 100% to GSM

subscriber and PDP active content rate is 10%, so the PDCH channel configuration is as

follows:

TRX

Number

per cell

average

load rate

of IP layer

at Um

interface

per PDCH

(kbps)

GSM

subscriber

Number

per cell

GPRS/

EDGE

PDP

Active

subscrib

er ratio

GPRS/

EDGE

subscri

ber

Number

per cell

Average

usage per

subscriber

per busy

hour(bps)

Average usage

for all

GPRS/EDGE

subscribers per

cell in busy

hour （kpbs）

PDCH

Number

per cell

PDCH

channel

Configurat

ion

(Static+Dy

namic)


1 20 50 10% 5 482 2.41 1 1+3

2 20 182 10% 18.2 482 8.7724 1 1+3

3 20 331 10% 33.1 482 15.9542 1 1+3

4 20 467 10% 46.7 482 22.5094 2 2+2

5 20 628 10% 62.8 482 30.2696 2 2+2

6 20 791 10% 79.1 482 38.1262 2 2+2

7 20 936 10% 93.6 482 45.1152 3 3+1

8 20 1103 10% 110.3 482 53.1646 3 3+1

9 20 1271 10% 127.1 482 61.2622 4 3+1

10 20 1441 10% 144.1 482 69.4562 4 3+1

11 20 1590 10% 159 482 76.638 4 3+1

12 20 1761 10% 176.1 482 84.8802 5 4+2

4.1.3 TCH Channel Planning

Here, TCH Channel Planning is considered in two different conditions.

One is TCH channel planning for only voice service requirements, that’s scenarios1-Part A in

Crawford Market/Masjid Bunder area, scenarios1 Part B in Navi Mumbai, and scenarios2 on

Delhi-Ludhiana highway section. We view it as Condition 1.

The other is for voice service with additional data services requirement, that’s scenarios3-

Part A in Crawford market/Masjid Bunder area and scenarios3 Part B in Navi Mumbai. We

regard it as Condition 2.

The quantity of TCH channels under every carrier and the subscriber per cell for Condition 1

are planned as follows:

Number

of

Number

of

SDCCH

Channel

Structure

Number of

Control Channels

Number

of PDCH

Static

Channels

Number

of TCH

Channel

Traffic/

cell

(Erl)

Subscriber

Number/

Cell

1 8 SDCCH/8 2 0 6 2.28 50

2 16 SDCCH/8 2 0 14 8.2 182

3 24 SDCCH/8 2 0 22 14.9 331

4 32 2×SDCCH/8 3 0 29 21.04 467

5 40 2×SDCCH/8 3 0 37 28.26 628

6 48 2×SDCCH/8 3 0 45 35.61 791

7 56 3×SDCCH/8 4 0 52 42.13 936

8 64 3×SDCCH/8 4 0 60 49.64 1103

9 72 3×SDCCH/8 4 0 68 57.22 1271

10 80 3×SDCCH/8 4 0 76 64.85 1441

11 88 4×SDCCH/8 5 0 83 71.57 1590

12 96 4×SDCCH/8 5 0 91 79.27 1761


The quantity of TCH channels under every carrier and the subscriber per cell for Condition 2

are planned as follows:

Number

of

Carriers

Number

of

Channels

SDCCH

Channel

Structure

Number of

Control Channels

(BCCH+SDCCH)

Number

of PDCH

Static

Channels

Number

of TCH

Channel

Traffic/

cell

(Erl)

Subscriber

Number/

Cell

1 8 SDCCH/8 2 1 5 1.66 36

2 16 SDCCH/8 2 1 13 7.4 164

3 24 SDCCH/8 2 1 21 14.03 311

4 32 2×SDCCH/8 3 2 27 19.27 428

5 40 2×SDCCH/8 3 2 35 26.43 587

6 48 2×SDCCH/8 3 2 43 33.76 750

7 56 3×SDCCH/8 4 3 49 39.33 874

8 64 3×SDCCH/8 4 3 57 46.82 1040

9 72 3×SDCCH/8 4 3 65 54.38 1208

10 80 3×SDCCH/8 4 3 73 61.99 1377

11 88 4×SDCCH/8 5 3 80 68.69 1526

12 96 4×SDCCH/8 5 4 87 75.41 1675

4.2 Capacity PlanningAccording to the IFQ, capacity planning is only taken into account in planning areas of two

cities, as well as coverage demand for voice service. As for Delhi-Ludhiana highway section,

coverage is the one and only thing we’ll consider. As a result, on the base of the given traffic

model, the target capacity in Crawford market/Masjid Bunder area and Navi Mumbai city is

shown as follows, both for voice service only and for voice & data services.

City Name

Crawford market/

Masjid Bunder

Navi Mumbai

PHASE1 77778 111112

PHASE2 89445 138891

PHASE3 102862 173614

4.2.1 Capacity Planning for Scenario1 (Part A and Part B)

Scenario1 (Part A and Part B) is for voice service only in two cities.

It is obvious that Crawford market/ Masjid Bunder area belongs to dense urban region, while

Navi Mumbai consists of urban region and Sub&Rural region. Considering the system

expansion capability to some degree and uneven distribution of actual subscribers, it’s

necessary to avoid using the single configuration only. On the basis of that rule, we’ll use two


or more types of site configuration to meet the capacity requirements in each phase. So, the

rollout can be shown as follows:

Crawfor

d market

/ Masjid

Bunder

S8/8/8 S9/9/9 S10/10/10 S12/12/12BTS

Number

TRX

Number

Adde

d TRX

Designed

Capacity

Target

Capacity

Target

Traffic

(Erl)

PHASE1 4 17 　　 21 555 0 78057 77778 3500

PHASE2 　 2 19 　 21 624 69 89763 89445 4025

PHASE3 　　 8 13 21 708 84 103263 102862 4628.75

city

TypeSuburban&Rural Urban BTS

Numb

er

TRX

Numb

er

Added

TRX

Designed

Capacity

Target

Capacity

Target

Traffic

(Erl)Navi

Mumbai S222 S333 S444 S555 S666 S777 S888

PHASE1 57 　　 15 22 　　 94 963 0 111204 111112 5000

PHASE2 　 57 　 11 26 　　 94 1146 183 138924 138891 6250

PHASE3 　　 57 　 23 14 　 94 1392 246 173640 173614 7812.5

From upper two tables, it’s clear that totally 21 BTSs are to be built in Crawford

Market/Masjid Bunder area and 94 ones for Navi Mumbai. All of them need to be finished

building in phase1, expanding capacity by adding TRXs in next 2 phases.

4.2.2 Capacity Planning for Scenarios3 (Part A and Part B)

Scenario3 (Part A and Part B) is for voice and data services in two cities.

It is obvious that Crawford market/ Masjid Bunder area belongs to dense urban region, while

Navi Mumbai belongs to urban region. Considering the system expansion capability to some

degree and uneven distribution of actual subscribers, it’s necessary to avoid using the single

configuration only. On the basis of that rule, we’ll use two types of site configuration to meet

the capacity requirements in each phase. So, the rollout can be shown as follows:

Crawfor

d market

/ Masjid

Bunder

S9/9/9 S10/10/10 S11/11/11 S12/12/12

BTS

Number

TRX

Number

Added

TRX

Designed

Capacity

Target

CapacityTarget

Traffic

(Erl)

PHASE1 17 4 　　 21 579 0 78132 77778 3500

PHASE2 　 14 7 　 21 651 72 89880 89445 4025

PHASE3 　　 5 16 21 741 90 103290 102862 4628.75

city

Type

Suburban&Rural Urban BTS

Numb

TRX

Numb

Added

TRX

Designed

Capacity

Target

Capacity

Target

Traffic


er er (Erl)Navi

Mumbai S222 S333 S444 S555 S666 S777 S888

PHASE1 57 　　　 37 　　 94 1008 0 111294 111112 5000

PHASE2 　 57 　　 30 7 　 94 1200 192 139035 138891 6250

PHASE3

　　 57 　　 30 7 94 1482 282 173688 173614

7812.

5

From upper two tables, it’s clear that totally 21 BTSs are to be built in Crawford

Market/Masjid Bunder area and 94 ones for Navi Mumbai. All of them need to be finished

building in phase1, expanding capacity by adding TRXs in next 2 phases.

5 Rollout

5.1 Rollout for Scenarios1 (Part A and Part B)Crawford market /

Masjid BunderS8/8/8 S9/9/9 S10/10/10 S12/12/12

BTS

Number

TRX

Number

Added

TRX

PHASE1 4 17 　　 21 555 0

PHASE2 　 2 19 　 21 624 69

PHASE3 　　 8 13 21 708 84

city Type Suburban&Rural UrbanBTS

Number

TRX

Number

Added

TRXNavi

Mumbai S222 S333 S444 S555 S666 S777 S888

PHASE1 57 　　 15 22 　　 94 963 0

PHASE2 　 57 　 11 26 　　 94 1146 183

PHASE3 　　 57 　 23 14 　 94 1392 246

5.2 Rollout for Scenarios2

Roadlength

（km）

Configuratio

n

BTS

Number

TRX

Number

Highway (Delhi-

Ludhiana)350 S1/1 48 96

5.3 Rollout for Scenarios3 (Part A and Part B)Crawford market /

Masjid BunderS9/9/9 S10/10/10 S11/11/11 S12/12/12

BTS

Number

TRX

Number

Added

TRX

PHASE1 17 4 　　 21 579 0

PHASE2 　 14 7 　 21 651 72

PHASE3 　　 5 16 21 741 90

city Suburban&Rural Urban BTS TRX Added


Type

Number Number TRXNavi

Mumbai S222 S333 S444 S555 S666 S777 S888

PHASE1 57 　　　 37 　　 94 1008 0

PHASE2 　 57 　　 30 7 　 94 1200 192

PHASE3 　　 57 　　 30 7 94 1482 282

5.4 Comparison of Scenarios1 and Scenarios3From the upper rollouts, it’s easy to see that the TRX number is various when GPRS/EDGE

data service is added to voice service. The specific differences in TRX quantity is listed as

follows:

City/Road Name

Crawford market / Masjid Bunder Navi MumbaiHighway(Delhi

-Ludhiana)

Voice

Service

Data&Voice

ServiceDifference

Voice

Service

Data&Voice

ServiceDifference Voice Service

Total BTS

Number 21 21 0 94 94 0 48

Total

TRX

Number

Phase1 555 579 24 963 1008 45 96

Phase2 624 651 27 1146 1200 54 　Phase3 708 741 33 1392 1482 90 　

As for spectrum requirement, there are no differences in Crawford Market/Masjid Bunder

area, after data service is added to voice service. However, in Navi Mumbai area, data

service demands additional 1.2MHz spectrum for GSM1800. Follow table see more details:

City Name

Crawford market / Masjid Bunder Navi Mumbai

Voice

Service

Data&Voice

Service

DifferenceVoice

Service

Data&Voice

Service

Difference

Spectrum

Requirement

(MHz)

15.8 15.8 0 9.8 11 1.2


6 Simulation

6.1 Sites Distribution6.1.1 South Mumbai (Crawford Market / Masjid Bunder area)

There are totally 21 sites distributed in South Mumbai (Crawford Market/Masjid Bunder area),

sized of 2 sq.km.


6.1.2 Navi Mumbai

There are totally 94 sites distributing in Navi Mumbai area, sized of 174 sq. km. Total 37

sites are in Urban area (shown as red sites), while 57 else are distributed in Sub&Rural area

(shown as blue sites). The blue polygon shows the region of the urban, while the red one

shows the whole Navi Mumbai planning region.

6.1.3 Highway （ Delhi-Ludhiana section ）

Totally 48 sites are distributed along this section of highway, crossing 3 city-states (Delhi,

Haryana and Punjab). The results are given by sites of section within each state.

1 Sites in Delhi section (totally 4 sites)


2 Sites in Haryana section (totally 25 sites)

To be shown more clearly, we divided this section into 2 parts.


(1) Part1 in Haryana



3 Sites in Punjab section (totally 19 sites)


6.2 Coverage prediction results6.2.1 South Mumbai (Crawford Market / Masjid Bunder area)

Dark Green: -65<=x dBm

Light Green: -72<=x<=-65 dBm

Light Yellow: -82<=x<=-72 dBm

Pink: -92<=x<=-82 dBm

Light Bule:-102<=x<=-92 dBm

All above signal levels are measured outdoor.

Considering 30dB of in-building penetration loss, the outdoor signal level must reach -

72dBm at least, to achieve 90% indoor coverage probability. The light green color shows the

required signal level in South Mumbai (Crawford Market/Masjid Bunder) area.

Statistic data of coverage simulation shows that nearly 99% area can achieve -72dBm level,

which satisfies the requirement perfectly.


6.2.2 Navi Mumbai

Dark Green: -65<=x dBm

Light Green: -72<=x<=-65 dBm

Light Yellow: -82<=x<=-72 dBm

Pink: -92<=x<=-82 dBm

Bule:-102<=x<=-92 dBm


Considering 20dB of in-building penetration loss, the outdoor signal level must reach -

82dBm at least, to achieve 90% indoor coverage probability. The light yellow color shows the

required indoor signal level in Navi Mumbai area.

Our target planning areas in Navi Mumbai are regions where subscribers actually distribute.

So there’s no necessary to cover all 174 square km region, including swamps, forests, water,

open and quasi open areas. Instead, we focus on coverage requirements of urban,

suburban, village, industrial area and airport, with the help of Google Earth.

6.2.3 Highway （ Delhi-Ludhiana section ）


Considering 6dB of in-car loss, the outdoor signal level must reach -96dBm at least, to

achieve expected service quality on this road. The results are also be given by sites of

section within each state.

1 Coverage Prediction of Sites in Delhi section (totally 4 sites)


2 Coverage Prediction of Sites in Haryana section (totally 25 sites)

To be shown more clearly, we divided this section into 2 parts.



3 Coverage Prediction of Sites in Punjab section (totally 19 sites)


7 Frequency Planning

7.1 Site Frequency Planning As one of the cores of network planning, the frequency planning is directly related with the

network quality. Many symptoms, such as poor voice quality, high call drop ratio, frequency

handover but low success ratio and traffic congestion, root from unreasonable frequency

planning.

To satisfy the capacity requirement in city A (South Mumbai), S12/12/12 will be implemented as

the max configuration, while in city B (Navi Mumbai), S888 can meet the requirement. So, in both

South Mumbai (Crawford market / Masjid Bunder) and Navi Mumbai area, we adopt 4*3

frequency reuse pattern for BCCH for GSM1800 network, and 1*3 frequency hopping for TCH,

considering 50% hopping load capability, reserving 1 frequency for isolation between BCCH and

TCH.

By considering various conditions comprehensively and using ZTE's wireless network planning

software PlanMaster for the frequency planning in this project, the result of frequency plan is

presented in following attachments, respective for South Mumbai (Crawford Market/Masjid

Bunder area) and Navi Mumbai.

Attachment:

7.2 Anti-interference Measures The GSM is an interference-limited system. As frequency reuse becomes denser, it is necessary

to consider effective suppression of common/adjacent frequency and intermediation interference

in the network planning. Some wireless network technologies should also be considered in

addition to detailed frequency planning and performance improvement of RF parts.

1) Antenna parameter design: The directional angle should be designed properly to minimize

the opposition of common frequency reuse cells. The pitch angle should be designed

properly to control the scope of effective coverage and avoid the superposition of common

frequency cells.

2) Power control: The power control enables manual adjustment of the effective coverage

distance of BTSs and reduction of inter-cell interference.

3) Flexible handover algorithms

4) DTX technology

planning scheme for gsm project of reliance

Documents