rf planning

NOKIA

RF PLANNING

RF PLANNING

Copyright © Nokia Networks (12)

Document No. DN99558163 Rev. No. 03 document.doc

NOKIA

RF PLANNING



NOKIA

RF PLANNING

DOCUMENT REVISION HISTORY

Date Rev. No.

Originator DCN No.

Summary of Change

16-Jul-96 01 Hannu Malm 00120 new document

15-Sep-98 02 Quan Dang-Tran 00563 Changes to the names of tools and organization

03-Nov-00 03 Frank Lin Update names of organization

COPYRIGHT © Nokia Networks Inc 1999 All rights reserved.

No part of this document may be copied, distributed, transmitted, transcribed, stored in a retrieval system, or translated into any human or computer language without the prior written permission of Nokia Networks Inc.

Nokia Networks has made every effort to ensure that the instructions contained in the documents are adequate and free of errors and omissions. Nokia Networks will, if necessary, explain issues which may not be covered by the documents. Nokia Networks’ liability for any errors in the documents is limited to the correction of errors and the aforementioned advisory services.

The documents have been prepared to be used by professional and properly trained personnel, and the customer assumes full responsibility when using them.

NOKIA logo is the registered trademark of Nokia Corporation.

Any other trademarks mentioned in the documents are the property of their respective owners.



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RF PLANNING

Nokia Networks, Nokia Cellular Systems



NOKIA

RF PLANNING

TABLE OF CONTENTS

1. PURPOSE......................................................................................................................4

2. SCOPE...........................................................................................................................4

3. DEFINITIONS AND ACRONYMS...................................................................................4

4. TOOLS/EQUIPMENT REQUIRED.................................................................................4

5. REFERENCES...............................................................................................................4

6. RESPONSIBILITIES.......................................................................................................5

7. PROCESS INPUTS AND OUTPUTS.............................................................................5

8. PROCEDURE DESCRIPTION.......................................................................................6

8.1 SUMMARY OF DESCRIPTION..................................................................................6

8.2 GENERAL...................................................................................................................7

8.3 REQUIREMENTS.......................................................................................................7

8.4 INITIAL DESIGN.........................................................................................................7

8.5 COVERAGE PLANNING AND SITE SELECTION......................................................7

8.6 CAPACITY PLANNING...............................................................................................8

8.7 C/I ANALYSIS AND FREQUENCY PLANNING..........................................................8

8.8 PARAMETER PLANNING..........................................................................................8

8.9 RADIO NETWORK PLAN...........................................................................................8

8.10 CUSTOMER ACCEPTANCE..................................................................................8

8.11 DETAIL....................................................................................................................9

9. QUALITY RECORDS.....................................................................................................9



NOKIA

RF PLANNING

1. PURPOSE

The purpose of this document is to describe the process of RF Planning (RFP).

2. SCOPE

This procedure applies to all projects in the implementation phase or operation and maintenance phase unless otherwise agreed with the customer.

3. DEFINITIONS AND ACRONYMS

CW Continuous waveCS Customer ServicesCSC Customer Services CenterTOM Network Measurement System: Tool for Outdoor

Measurement from Nemo TechnologiesNP Network PlanningNPS/X Network Planning SystemNO Network OptimizationOMC Operations and Maintenance Center (i.e

NMS/2000)RFP RF Planning

4. TOOLS/EQUIPMENT REQUIRED

CW Test Transmitter (at 1900 MHz band) & antenna

Receiver & Data collection system

TOM measurement tool

Measurement vehicle

NetDim dimensioning tool

RF Planning tool (NPS/X) & color plotter

5. REFERENCES

/1/ Network Planning Manual, NTC BAG 0095



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RF PLANNING

/2/ NPS/X Network Planning System, User's Manual, NTC BAG 0036 (Paper copy only located in the Network Planning Room)

/3/ Network Dimensioning, DN99558148

/4/ Network Optimization, DN99558187

6. RESPONSIBILITIES

Authorization CS Planning Services Manager

Review and Amendments CS Planning Services Manager

Implementation Project Manager, members of the RFP team

7. PROCESS INPUTS AND OUTPUTS

Inputs: Area to be covered

Quality of service

Traffic (average, distribution)

Network capacityTypically these are customer requirements for the network to be designed.

Outputs:Initial Design Report includes at least the following documentation:

Coverage plots

Initial site locations/search rings

Initial BTS configurations (omni, sectorized, # of sectors)

Propagation measurement results

Propagation model tuning report

RF Design Report includes at least the following documentation: Network Rollout Plan

Coverage plan including cell-specific and cumulative coverage and dominance plots

Capacity plan and BTS configurations



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RF PLANNING

Frequency plan

Parameter plan (default parameters for each cell)

8. PROCEDURE DESCRIPTION

8.1 Summary of Description

Figure 1 RF Planning Flow Chart



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RF PLANNING

8.2 General

RFP is an optimization process with different stages from rough calculations and sketches to detailed network plans. It is a continuous process as well, since a close follow-up of the network is needed during the network development and expansion.

The objective of RFP is to fulfil the network operator's requirements for coverage, capacity and quality at a minimum cost. The planning strategy in different network regions depends on the dominating factor, which can be coverage or capacity. In case of very high capacity spots the micro cellular approach (two-layer network structures) should be considered before the conventional means are completely exhausted.

8.3 Requirements

The customer provides the requirements for the network design. These requirements and their impact to the network design are discussed with the customer. The requirements usually include coverage, quality rollout and equipment requirements as well as network traffic growth estimates.

8.4 Initial Design

The purpose of the initial design is to provide an initial coverage plan and a proposal of site locations. It thus provides necessary information for the site acquisition process. Initial design is based on modelling the actual propagation conditions and it is performed using computerized planning tools.



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RF PLANNING

8.5 Coverage Planning and Site Selection

Initial coverage plan and search rings provide an input to site acquisition. Later coverage planning and site acquisition is an interactive process. Coverage planning makes suggestions to where to locate the sites. RF plans are then adapted to sites that can be provided by the site acquisition. Coverage planning also supports the filing of necessary applications to local and/or federal officials (e.g. in the US: zoning, FAA & FCC filings).

8.5.1 ACCEPTANCE AND SITE ACQUISITION

RF planning provides the customer the coverage options concerning available sites. The consequences of each choice are discussed, and the customer makes the final decision of the site.

8.6 Capacity Planning

The average cell capacity definition in terms of areas is given in initial design. Detailed capacity allocation is done using a planning tool. The traffic density information from a digital map is integrated over the primary service area of each cell and converted to number of traffic channels per cell. The cell capacity requirement is optimized by tuning the coverage patterns and handover parameters and using a network simulator.

Output of this task will be a document listing the BTS configurations for each site:

1. Antenna type, height, orientation and tilt

2. # of sectors

3. # of TRX per sector

4. Channel configuration



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RF PLANNING

8.7 C/I Analysis and Frequency Planning

The output of the initial design is the propagation model of the local environment. This yields to an accurate field strength prediction. Again this results in reliable interference (C/I) probability calculation, which is then used as a basis for frequency allocation. Capacity in the available band is optimized by using heuristic algorithms to allocate frequencies for the whole network or its specific areas of interest. The use of accurate coverage prediction and dynamic allocation algorithm allows detecting and eliminating interference areas before implementing the frequency plan in the live network. The output of this task is a frequency list and C/I plots of co-channel and adjacent channel interference.

8.8 Parameter Planning

The goal of this task is to set initial values for all BSS parameters of a PCS1900 system to reach good grade of service and network performance from the day network is launched for service.

8.9 Radio Network Plan

8.9.1 REVIEW AND APPROVAL

Documents created in the RF Design process are reviewed and approved by the PS Manager or the Project Manager of the RF Design Project.

8.10 Customer Acceptance

Documents created in the RF Design process are delivered to the customer for acceptance.

8.11 Detail

There are several major activities in the RFP procedure when contents may differ slightly depending on the system, for example the parameter planning, but the overall scheme remains as given in Figure 1. More details could be found in /1/ and /2/. The Network Dimensioning and Network Optimization procedures are described in /3/ and /4/ respectively.



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RF PLANNING

9. QUALITY RECORDS

No. Name Location Indexed By Owner Retention Period

1 Initial Design Report Customer-specific Binders in Network Planning Room

Customer, Market

Planning Services Department

5 years

2 Site configuration & network traffic capacity plan

Customer-specific Binders in Network Planning Room

Customer, Market


5 years

3 Frequency plan Customer-specific Binders in Network Planning Room

Customer, Market


5 years

4 Parameter plan Customer-specific Binders in Network Planning Room

Customer, Market


5 years

5 Design Report Customer-specific Binders in Network Planning Room

Customer, Market


5 years

