TMA Installation EIB

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TMA Installation

Prepared by Owner Replace Date Revision Reference

Usman Amjad (RAN) N.A. 19th Feb 2010 A EIB-XXX-RAN-TMA

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EngineeringInformationBulletin

EIB-XXX-RAN-TMA

TMAINSTALLATIONPROJECT


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Contents

Introduction .............................................. ......................................... ................................ 3

Distribution list ................................................................................................................ 3

Purpose ........................................... ............................................. ........................................ 4

Step by Step Procedure ........................................ ................................................. ........ 4

List of KPIs .......................................................................................................................... 5

Flow Chart .......................................................................................................................... 6


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Introduction

This EIB describes the Procedure of TMA installation project in CMPak Network

Distributionlist

Personals working in the RAN Optimization, RAN Planning, OMC

Name/Distribution

List

Name

Title

Mr. Xu Haiyong CTO

Mr. Zhang Bo Advisor to CTO

Mr. Cyrus Sikandir Director O&M

Mr. Arshad Usman Director NP&S

Mr. Khurram Alvi Director Rollout

Mr. Syed Ahmed Hassan Sr. Manager O&MMr. Muhammad Adeel Israr Sr. Manager O&M

Mr. Asim Suleman RCTO North

Mr. Syed Wajid Ali RCTO South

Mr. Nasir Qayyum RCTO CentralII

Mr. Imran Zafar RCTO CentralI

Mr. Kamran Haider Manager RAN Planning HQ

Mr. Sumair Chaudhary Manager RAN CentralI

Mr. Syed Muhammad Bilal Manager RAN North

Mr. Mudassir Hussain Manager RAN South

Mr. Muhammad Basharat Ali Team Lead RAN CentralII/III


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Purpose

Tower Mounted Amplifier is used to minimize the path imbalance due to weak uplink signal

strength on a cell. TMA also enhances the uplink signal strength in order to reduce the ping pong

handovers due to weak uplink. TMA will be installed in CMPak network to increase uplink signal

strength and to improve customers perception.

StepByStepProcedure

# Step Responsibility DescriptionStep 1 Choose the right Cell* RAN

Optimization

This is very important for TMA project to choose the right cell

for TMA use. RAN Optimization team will select the list of cells

where TMA is required. This will be done by monitoring cell

statistical data

Step 2 EAS Dry Connection

Availability

FOPs It is responsibility of FOPs to make sure that at least one dry

connection is available for selected cell for External Alarm

Patching. This can also be done by removing already patched

alarms having least importance.

Step 3 Project Execution Plan

and Timeline

Vendor Final list of cells will be given to the vendor to submit the

project execution plan and timeline accordingly

Step 4 Assignment of WorkOrder RANOptimization

and OMC

A 12 hours work order will be assigned to vendor to performinstallation activity, as this activity involves sector lock.

Step 5 Project Execution Vendor TMA installation will be performed by Vendor according to the

submitted plan

Step 6 Site Access FOPs CMPak FOPs will be responsible to make access to the sites for

vendor to install TMA.

Step 7 TMA Installation and

EAS Patching

Vendor Vendor will be responsible for TMA installation and External

Alarm patching for the cell

Step 8 Initial Test* FOPs and

Vendor

Along with the Vendor Fops will conduct the initial test before

and after the activity if all installations are done correctly

Step 9 Removal of Snags, if

any

Vendor In case of any service affecting snags it shall be removed

immediately, for other Vendor will have 2 days to fix the issue.

Step10

RF PerformanceAnalysis*

RANOptimization

After TMA installation and removal of all Snags, RANOptimization will monitor the stats and prepare benchmark

report of the change. In case of any ambiguities found FOPS and

Vendor will be intimated.

Step

11

TMA PAT RAN

Optimization,

FOPs

After monitory for 7 days from installation of TMA, RAN

Optimization and FOPs will sign the PAT document.

*Further explained below


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Howtochoosetherightcell:

It is very important to choose the right cell to install TMA. This can be done by analyzing statistical

data and user behaviour.

Path Imbalance (ve value) depicts weak uplink signal strength, cells with high pathimbalance values

High number of ping pong uplink handovers for a cell due to weak uplink signalstrength

High number of call drop rate due to weak uplink signal strength Poor uplink signal quality due to weak signal strength Average high TA for the cell Recent Alarms on the cell Hardware faults that may impact path balance Cell should be selected on the basis of at least 15 days trend

InitialTest:

BeforeTMA

Installation

Following test must be conducted before the TMA is installed on the cell. This will be performed by

vendor and CMPak FOPs

Complete health check of cell Antenna Physical Parameters (Azimuth, Tilt, Height) VSWR TRX Power Total Output Power Cable Loss


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AfterTMAInstallation

Following test must be conducted after the TMA is installed on the cell. This will be performed by

vendor and CMPak FOPs

Complete health check of cell Antenna Physical Parameters (Azimuth, Tilt, Height) VSWR TRX Power Total Output Power Cable Loss Installation should be as per the agreed layout provided by the vendor. Tagging should be complete (for TMA, Alarm cables, Jumpers) Proper grounding of PDU and TMA. Proper power connections of PDU in rectifier with suitable wiring connections and Tee

Bias.

All alarms are checked and removed. Cable loss, insertion loss etc. should be as per thebelow the specified threshold.

Weather proofing and finishing tape on jumper cables and connectors should beinstalled.

Proper fixing of TMA on mount (with appropriate clamps). Proper cable layout and is arrangement is done cleanly. All snags are removed. External alarms are working. VSWR is below the threshold. Ensure the entire check list is complete. PAT document is filled accurately.


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KPIstobemonitored:

Following are the KPIs to be checked/ verified after installation of TMA

Path Balance Uplink level & Quality handover performance Downlink level and Quality handovers Call drop rate (Inc and Exc HO) Uplink level and Quality Samples VSWR

TMA Installation EIB

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