CDMA Wireless networkPlanning & OptimizationOverview

Contents

Planning &Optimization in Wireless network construction

Wireless network planning & optimization specialty introduction

Wireless network planning & optimization project organizational structure

ZTE CDMA network planning & optimization team

ZTE CDMA network planning & optimization philosophy

Planning & Optimization in wireless network construction

RFD

Wireless Network Planning

RF Optimization

Maintenace Optimaization

PAT

FAT

Wireless Network Planning

Simulation

Wireless Network

Optimization Simulation

Construct &Commissioning

Planning & Optimization in wireless network construction

Optimization Planning

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Planning Simulation

Network performance Maintenance Optimization

RF Engineering Optimization

Planning & Optimization in wireless network construction

Wireless network planning & optimization work penetrate through the whole processes of network construction, running and maintenance

The quality of wireless network planning scheme relates directly with practical network performance index and customer satisfaction

During the processes of network running and maintenance, optimization is routine work and planning is periodic work

Contents

Planning &Optimization in Wireless network construction

Wireless network planning & optimization specialty introduction

Wireless network planning & optimization project organizational structure

ZTE CDMA network planning & optimization team

ZTE CDMA network planning & optimization philosophy

Wireless network planning specialty contents

According to the operator’s network construction a

nd development requirements, base on adequate site

survey and analysis, combining with the wireless equ

ipments self system characteristic and primary perfor

mance index, the wireless network planning is the pr

ocess of output network topology structure and prim

ary RF parameters using wireless network design too

ls.

The emphasis and difficulty in wireless network planning

Capacity and coverage are the emphases of network planning.

(Hot spot & Blind spot)

Accurate capacity prediction is the difficulty in current wireless design.

Wireless network simulation specialty contents

Base on simulation software and hardware, with reasonable parameters and models configuration, wireless network simulation is the process of predict the network develop and evolution within definite accuracy range. NOS (Network oriented simulation) includes link level simulation and system level simulation. Wireless network simulation is to serve the network planning and network optimization.

The Emphasis and difficulty in wireless network simulation

Setting parameters correctly is the emphasis of network simulation

System modeling is the difficulty in

network simulation

Wireless network optimization specialty contents

Base on system analyzing of network collected data using assistant tools, find out the factors that affect the network quality, put forward and implement the technical method to improve network performance and subscribers’ satisfaction. The ultimate objective is that the existing network reaches its perfect running status and the maximum utilization of resources. The optimization mainly divided into engineering RF optimization and maintenance optimization

The Emphasis and difficulty in wireless network optimization

Network performance optimization is the emphasis of network optimization

Field data and OMC data mixed deep- level intelligent analysis is the difficulty in current optimization

Research developments of wireless network planning & Optimization specialty

Network construction evolution

The construction objective evolve is from enlarging network scale to enlarging operator’s benefit

The providing service is from voice only to data & voice

The main competitive strategy is from price to service

Research & development of wireless network planning specialty

Mixed network system design method (Multilayer overlap stereo)

Network planning in particular environment (Such as subway, ocean hyper-wide coverage etc.）

Mixed service design model (Such as voice&data service model)

Research & developments of wireless network planning specialty

Mixed Network dynamic simulation

Multi-service mode network dynamic

simulation

Multi-service mixed network modeling

Research & developments of wireless network optimization specialty

Foreground & OMC mixed data deep-level and intelligent analysis

( Automatic test & Synthesized analysis )

Mixed-service network evaluation and optimization

Unconventional network optimization method in particular environment (Such as tall buildings etc)

Research & developments of wireless network planning & optimization & simulation tools

Drive Test

Automatize

Manual Analysis

Intelligentize

The current 3G planning software cannot guide the engineering construction

The intelligent network optimization software depends on developments of data analysis technology and the optimization experiment accumulation

Skill ladder of wireless network planning & optimization & simulation specialty

Basic Communication theory

Wireless Communication system theory

Communication Protocols

Communication main & ancillary Equipment

Network Planning & Optimization Technology

Contents

Planning &Optimization in Wireless network construction

Wireless network planning & optimization specialty introduction

Wireless network planning & optimization project organizational structure

ZTE CDMA network planning & optimization team

ZTE CDMA network planning & optimization philosophy

Operating managements of wireless network planning project

Project Principal

Network Planning Engineer

Technology Principal

Test EngineerSimulation Engineer

Survey Engineer

Assistant Personnel

QC of Network Planning

Network Planning Expert

Operating management of wireless network simulation project

Project Principal

Technology Principal

Test EngineerSimulation Engineer

Survey Engineer

Assi stant Personnel

QC of Simulation & Model

Simulation Model Library

Operating management of wireless network optimization project

Project Principal

Network Optimization

Engineer

Network Analysis Engineer

Test EngineerOMC Switching

EngineerBase Station

EngineerAssistant Personnel

Simulation Engineer

QC of Network Optimization

Network Running Analysis

Network Optimization Expert

Contents

Planning &Optimization in Wireless network construction

Wireless network planning & optimization specialty introduction

Wireless network planning & optimization project organizational structure

ZTE CDMA network planning & optimization team

ZTE CDMA network planning & optimization philosophy

ZTE CDMA network planning optimization R&D team

The Proport i ons of Personnel Composi t i on

10%

60%30%

Doctor Master Bachel or

The Proportons of R&D personnel Composi t i on

20%

50%15%

15%

Network Pl anni ng Network Opt i mi zat i onNetwork Si mul at i on Ut i l i ty Devel opment

ZTE CDMA network planning optimization R&D team

Kernel members have the experience of participating in the

R&D of CDMA system, the profound understanding of CDMA

technology and application and having mastered several

network planning and optimization tools

The abundant practical experience accumulated during the

hundreds of CDMA commercial system, more than 12,000.000

lines engineering implement and network optimization

For CDMA network construction and engineering service, a

professional team have been established to provide the service of

helping operators to elaborate mobile communication network

ZTE CDMA Network optimization trace (China Unicom CDMA project)

主设备

ZTE CDMA Network optimization trace (China Telecom & Other Operators CDMA project)

CDMA

ZTE CDMA Network optimization trace (Overseas CDMA project)

In the international market, ZTE CDMA network planning and optimization team has participated in the countries like India, Pakistan, Brazil, Nigeria, Algeria, Indonesia, Russia, and more.

Wireless Network Engineer periodical

Patents

System Simulation 9pieces

Network Simulation 2pices

Network Planning

3 pieces

Network Optimization 2 pieces

Independently Developed Tools

ZXPOS CNT1-CDMA drive test software of ZXPOS CNT1-CDMA drive test software of network optimizationnetwork optimization

ZXPOS CNA1-CDMA analysis software ZXPOS CNA1-CDMA analysis software of network optimizationof network optimization

ZXPOS Expert analysis system of OMC dataZXPOS Expert analysis system of OMC data

ZXPOS CNT1-CDMA drive test software of network optimization for voice test

ZXPOS CNT1-CDMA drive test software of network optimization for data test

ZXPOS CNA1-CDMA analysis software of network optimization

ZXPOS － Expert analysis system of OMC data

Statistic diagram of neighbor cell handoff

Cell Main RSSI diagram on off traffic hours

Cell traffic diagram on busy hour

Cell BH block ratio diagram on busy hour

The operating CDMA network dynamic management, network performance tracing and find the best solution to improve the network performance.

System performance data analysis

Expert system

Contents

Planning &Optimization in Wireless network construction

Wireless network planning & optimization specialty introduction

Wireless network planning & optimization project organizational structure

ZTE CDMA network planning & optimization team

ZTE CDMA network planning & optimization philosophy

Network planning determines network optimization

Network planning is the key factor to network construction;

Network optimization is to improve network quality during the network construction;

Scientific planning will get twice the results with half efforts;

Network optimization is the important input of later planning design

The communication between network optimization and network planning influence the network design quality

The network optimization data is the source of network planning design

The network optimization engineer must participate in the network design

Shorten the time and manpower by Network simulation

Testing point by point to design the network will waste the investments of operator

Credible network simulation guide the network planning and optimization

Antenna repetitious adjustment only cause complaint

Problems in wireless network optimization

MBTS

ESU

RU_8

RU_2

ESU

RURU_1

Equipment layer

Network layer

Resource utilization

ratio layer

Wireless network optimization methods for different problems

Implement solution

Acquire data Analyze data

■ Synthetical analysis method

■ Analytical method of special topic

Equipmentlayer

Networklayer

ResourceUtilizationRatio layer

■ Expert regulation

■ Analytical method of DT data

■ Analytical method of OMC data

■ Analytical method of front-

background signal tracing

Work out solution

Wireless network optimization: Performance data tells everything

Be favor of bald data and skillful at analyzing data

Find the relationship with data by Statistical tools

Network optimization originated from data and ended in optimization result’s data assessment

Wireless network optimization: Focusing on performance index

Objective performance indexes determine the customer Satisfaction

Performance Index can be quantitatively analyzed

The ideas show that optimization should base on data

Network maintenance optimization: The balance between network performances

The performance balance of complex network is achieved by maintenance optimization

When you “get” something you must have “lost” some others in another way

The balance between quality and capacity

Engineering Quality impact the network performance greatly

Fast work doesn’t mean good work;

The network optimization engineer should never continue the unfinished work for engineering supervisor;

One poor quality site worsen the whole network;

Keep consistency by documentation

Experience share by expressing it in words

No documents, high risks

Private equals wholly drop behind

Read documents is a kind of self-training

Yesterday no more

Urban high sites do not meet the dense network requirements

Have your “neighbor” changed? Adjust the neighbor list in time

Equipment hardware aging, antenna, feeder cable and connector affect the network quality

Is the network parameter still feasible?

Establish network planning optimization expert team

Our Suggestion

Elaborate network requirements of operators

Golden service requirements of operators

Enterprise kernel competitive capability requirements of operators

Our Suggestion

Emphasize on the practicability of network planning

Network design determine network quality, network

optimization is continuous improvement

Network design determine the network optimization

workload, network optimization result influences the

network design

Credible planning simulation ought to be regular co

ntents during network planning

Our Suggestion

Combination among the strong ones, improve network planning and optimization level

Network optimization efficiency and the optimization

engineer Technological accomplishment are

inseparable;

Network optimization service supplier with operator or

manufacturer background is the best cooperator for

CDMA network optimization;

ZTE CDMA network planning and optimization group is

the industry outstanding network planning and

optimization service supplier;