64481984 11 LTE radio network planning introduction (1)

Huawei Confidential Page 4The operator provides: Naming conventions Existing sites information Preparation Network Deployment Detailed Planning nCoverage area Dense urban, Urban, Suburba

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HUAWEI TECHNOLOGIES CO., LTD Huawei Confidential

Security Level:

www.huawei.com

LTE Radio Network Planning Introduction

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HUAWEI TECHNOLOGIES CO., LTD Huawei Confidential Page 2

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Huawei LTE Radio Network Planning Main Steps

Detailed Planning

Inputs: Coverage, Capacity &

Service Requirement

Outputs: eNodeB coverage

radius and site numbers based on capacity calculation

Inputs: Calculated coverage radius, digital map and subscriber distribution information

Outputs: Preliminary eNodeB numbers

Inputs: Coverage target and site survey result Outputs: Actual site location and engineering parameters

Dimensioning

Preplanning

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The operator provides: Naming conventions Existing sites information

Preparation

Network Deployment Detailed Planning

nCoverage area (Dense urban, Urban, Suburban )

nQuality objective (QoS criteria)

nCapacity requirement (Subscriber, traffic model)

nLink budget parameters (Penetration loss, Propagation model)

Agreement achieved by

n Cell radius in each morphology

n Network development solution

Huawei deliver

The output of dimensioning is important criteria to

assess RNP solution

nSite survey/candidate site search

nNeighbor cell configuration

nCell parameters configuration

nAlgorithm configuration

Nominal Planning

n Site location/ RF parameters configurations

n Search ring specifications

n prediction & Simulation

n Cluster definition for project management

Detail LTE Radio Network Planning

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…

Capacity Requirement

Frequency bandwidth Subscriber forecast Traffic Model

…

Active Users

S1&X2 Throughput Power/Channel

eNodeB Number

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Agenda

LTE RNP Dimensioning LTE RNP Overview

Coverage Dimensioning Capacity Dimensioning Active User Dimensioning S1&X2 Dimensioning

LTE Co-location Solution LTE Deployment Strategy

1 2

3 4

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LTE Radio Network Dimensioning Flow

Link Budget Cell Radius

Capacity Dimensioning

Satisfy Capacity Requirement?

Capacity Requirement

Adjust eNodeB Number No

Yes Active User/S1&X2 Dimensioning

eNodeB Amount&Configuration

Coverage Requirement

Start

End

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Agenda

1 2

3 4

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LTE Coverage Dimensioning Flow

n Aim of coverage dimensioning

- to obtain the cell radius

- to estimate eNodeB number for coverage requirement

Link Budget Cell Radius

eNodeB Coverage Area

Total Coverage Area/

eNodeB Coverage Area

Propagation Model

eNodeB Number

Start

End

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HUAWEI TECHNOLOGIES CO., LTD Huawei Confidential Page 10HUAWEI TECHNOLOGIES CO., LTD Huawei Confidential

LTE Link Budget Procedure – Uplink

Gain Margin Loss

Tx Power

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HUAWEI TECHNOLOGIES CO., LTD Huawei Confidential Page 11HUAWEI TECHNOLOGIES CO., LTD Huawei Confidential

LTE Link Budget Procedure – Downlink

Tx Power

BTS Ant Gain

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0 0.1 0.2 0.3 0.4 0.5 0.6 0.7

128kbps 256kbps 512kbps

0.67

0.59

0.49 0.46

Coverage Comparison b/w HSPA+ and LTE

DL than HSPA+ 2.1G; But HSPA+ 2.1G has better coverage in UL than LTE 2.6G

n LTE can reuse existing 3G sites, no additional LTE alone sites are required

at the beginning of LTE deployment.

0 1000 2000 3000 4000 5000 6000 7000 8000

0.90(km) 0.56(km) 0.36(km)

1024 643

1397

2528 2690

3634

7056

HSPA+2.1G@5MHz LTE2.6G@5MHz LTE2.6G@20MHz

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Agenda

1 2

3 4

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LTE Capacity Dimensioning Flow

Cell Average Throughput Calculation

Subscribers Supported

per Cell

Traffic Model Analysis

eNodeB Number

Configuration Analysis

No Satisfy Capacity

Requirement?

Total Subscribers

Yes

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Output

MonteCarlo Simulation

LTE Cell Average Throughput Calculation

－ Carrier power

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Frequency Bandwidth Scenario Cell Average Throughput Peak Throughput（Multi-users）

n LTE 2600MHz Cell Average Throughput with different bandwidth

LTE Cell Average Throughput

LTE Cell Average Throughput (Urban) Frequency Band (MHz) Bandwidth (MHz) DL (Mbps) UL (Mbps)

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0.00 5.00 10.00 15.00 20.00

HSUPA 10ms HSUPA 2ms HSUPA 16QAM LTE 5 MHz LTE 10MHz LTE 20MHz

UL Cell Average Throughput(Mbps)

Capacity Comparison b/w HSPA+ and LTE

0.00 5.00 10.00 15.00 20.00 25.00 30.00 35.00

HSPA (16QAM)

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Traffic Model Analysis

Traffic Model varies from different operators which is mainly used to

calculate Busy Hour Throughput per User

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Traffic Model Comparison b/w LTE and UMTS

Standard UMTS Traffic Model Standard LTE Traffic Model

VoIP over HSPA Erl/BH 0.0000 0.0000

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DL Cell Average Capacity

Designed DL Cell Loading

Designed DL Cell Capacity

Subscribers supported in a site

c = a x b = 17.127Mpbs LTE Capacity Dimensioning Case Study

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Agenda

1 2

3 4

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Active User Dimensioning

3600 /

_

*

* _

_

* _

_ ActiveUser i BHSA PPP Session Time RatRrcToPP P Number User

i ActiveUser Number

ActiveUser Number

PPP Session

• BHCA: Busy Hour Session Attempt

• PPP Time: Duration of PPP Session

• Ratio of RRC to PPP:

Percentage of RRC during one PPP session

• Number of User: Number of users using service i

Active User Definition

§ Active users is also called RRC-Connected Users which refer to the users having a RRC

connection with the network

§ Directly influences eNodeB quotation and controlled by software license

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Active User Dimensioning Case Study

scene UE Type BHCA PPPTime

(s)

Percenta ge

RatRrcT oPPP

RatPack ToRrc

Ave data rate in packet(

kbps)

RatRrcT oPPP

RatPack ToRrc

Ave data rate in packet(k bps)

number of subscribers in one Site 398 800

Ave data rate /Active User (kbps) 181.5 43.5 169.8 34.8

=Min (Total number of Subscribers / Total number of eNodeBs, maximum subscribers supported considering

traffic requirement)

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Active User Dimensioning Case Study

User Behavior

Traffic Penetration Ratio

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Agenda

1 2

3 4

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MSC/SGSN/GGSN

BTS BTS NodeB NodeB

S1&X2 Interface of LTE

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S1&X2 Dimensioning Case Study (1)

Traffic Ratio of UL = 无法显示图像。计算机可能没有足够的内存以打开该图像，也可能是该图像已损坏。请重新启动计算机，然后重新打开该文件。如果仍然显示红色“x”，

则可能需要删除该图像，然后重新将其插入。

Traffic Ratio of UL = Traffic Ratio of DL =无法显示图像。计算机可能没有足够的内存以打开该图像，也可能是该图像

已损坏。请重新启动计算机，然后重新打开该文件。如果仍然显示红色“x”，则可能需要删除该图像，然后重新将其插入。

Traffic Ratio of DL =

Data Traffic/Subs (UL)

= Data Traffic of all QCI type/Subs * Traffic Ratio of UL

无法显示图像。计算机可能没有足够的内存以打开该图像，也可能是该图像已损坏。请重新启动计算机，然后重新打开该文件。如果仍然显示红色“x”，

Data Traffic/Subs (DL)

= Data Traffic of all QCI type/Subs * Traffic Ratio of DL

无法显示图像。计算机可能没有足够的内存以打开该图像，也可能是该图像已损坏。请重新启动计算机，然后重新打开该文件。如果仍然显示红色“x”，则可能需要删除该图像，然后重新将其插入。

Data Traffic/Subs (DL)

= Data Traffic of all QCI type/Subs * Traffic Ratio of DL

Traffic Ratio of UL = 无法显示图像。计算机可能没有足够的内存以打开该图像，也可能是该图像已损坏。请重新启动计算机，然后重新打开该文件。如果仍然显示红色“x”，

Traffic Ratio of UL = 1/(1+4) = 20% Traffic Ratio of DL =

无法显示图像。计算机可能没有足够的内存以打开该图像，也可能是该图像已损坏。请重新启动计算机，然后重新打开该文件。如果仍然显示红色“x”，则可能需要删除该图像，然后重新将其插入。

Traffic Ratio of DL = 4/(1+4) = 80%

无法显示图像。计算机可能没有足够的内存以打开该图像，也可能是该图像已损坏。请重新启动计算机，然后重新打开该文件。如果仍然显示红色“x”，

BH Data Traffic/Subs (UL)

= BH Data Traffic/Sub.*Traffic Ratio of UL

2) Traffic data ratio for uplink and downlink is 1:4

3) Peak to average traffic ratio is 1.2 4) Number of subscribers per eNodeB

is 1000 5) Assuming IPV4 and IPsec with tunnel mode is used for IP over Ethernet transmission

6) Assuming the packet size is 300 bytes which means the ER is 1.37

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Mbps Site

Plane user

Total T

plane control

T _ = _ _ _ / * 2 = 41 1 * 2 % = 0 82

Mbps Site

plane user

Total T

Site Plane control

T Site S

T _ 1 / = _ _ / + _ _ _ / = 0 82 + 41 1 = 41 92

Mbps Site

S T Site X

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HSPA Iub Bandwidth

Common Channel Bandwidth

Signalling Bandwidth

Bandwidth for Traffic

HSPA Iub Bandwidth

Common Channel Bandwidth

Signalling Bandwidth

O&M Bandwidth

Iub Bandwidth

Comparison between Iub and S1 Bandwidth

M

&

CCH Signalling

HSPA Average

_ CS PS

Peak _ CS Total

Iub Iub

Iub

)]

Iub Iub

Iub ( , Iub

[ Max Iub

+ +

+

+ +

=

plane user

T

plane control

T plane user

T S

_

*

%) 2 1 (

_ _

1 +

=

+

=

Throughput at Mac layer/Subs.

S1 User Plane Dimensioning

Output

Subscribers Per eNodeB

Uplink and downlink data Traffic per subs.

Input

Extension Ratio (ER)

Peak to Average Ratio

Peak Throughput at Mac layer/Subs.

Peak Throughput at Mac layer/Site

S1 user Plane Throughput

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LTE Co-location General Consideration

Ø Co-existing Systems Interference

Guard band & isolation requirement

Ø Installation Space

Ø Tower Load

Ø Impact on existing network

Coverage performance, optimization

Ø Civil Work & Maintenance

Ø Cost

Reuse & replacing

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Just taking wide-band for example

Disadvantages

ü Require more installation space for both antenna and feeder

ü Require higher tower load

ü Too many antennas, causing vision pollution

LTE26002G/3G

New equipmentsExisting equipments

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Disadvantages

ü Require more antenna installation space and higher tower load

ü Additional diplexer cost

ü Additional diplexer loss, negative impact on existing network

ü Too many antennas, causing vision pollution

Recommendation

ü Applicable to impossible additional feeder

2G/3G

2G/3G LTE

Single-band2600(K80010541)

Combiner is required

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Disadvantages

ü Require more feeder installation space

ü Replacing new antenna

ü Independent tilt but same azimuth, partly independent network planning and optimization

Recommendation

ü New antenna should keep same beam width and gain for least negative impact on existing network

2G/3G 2G/3G LTE

Multi-bandwithout interior combiner(K80010544/

K80010622)

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ü Replacing new antenna

ü Independent tilt but same azimuth, partly independent network planning and optimization

ü Additional diplexer cost and loss, negative impact on existing network

Recommendation

ü New antenna should keep same beam width for least negative impact on existing network

ü RRU installed near the antenna

ü Thicker feeder (optional)

2G/3G

2G/3G LTE

Multi-bandwithout interior combiner(K80010544/

K80010622)

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ü Additional diplexer cost and loss, negative impact on existing network

Recommendation

ü New antenna should keep same beam width for least negative impact on existing network

ü It ‘s not recommended if other solution is applicable

2G/3G 2G/3G LTE

Wide-band(K80010621)

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Shifting Voice Traffic to UMTS

Shifting DATA Traffic to LTE

Shifting Voice Traffic to LTE

LTE Multi-band Deployment Strategy

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LTE Deployment Strategy Case

Deployment Strategy

Description

Continuously cover Dense Urbanarea and some hotspots in Urbanarea such as CBD, malls, resorts,VIP area, Rich area and so on

Continuously cover all cities inUrban area Perform optimizationand introduce indoor DAS based

on existing coverage area

Extend to all Suburban area andRural/Desert populated spots, aswell as highway to cover wholecountry Continue optimizationand indoor DAS coverage

Number of

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Thank you

www.huawei.com

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