mop for 1+0 link upgrade with amm upgrade t183 - t172

Technical Method of Procedure Template04/02/15

MOP for 1+0 Link Upgrade with AMM Upgrade:[T183 Fullarton T172 Coromandel]

Change requested byNaseema Mohammed

PositionTransport Engineer

Date Change Requested

Requested Implementation Date

Type of ChangeMicrowave Equipment

For standard Changes onlyChange ID

Date Change Last Reviewed

Table of Contents

1.Overview of change requested41.1.Change Description41.2.Reason for Change41.3.Before and After Snapshot42.IMPLEMENTATION Procedure52.1.Pre Checks52.2.High level Steps52.3.Low level Step52.4.Standard Change Parameter Change63.rollback Procedure73.1.Rollback Trigger73.2.High level Steps73.1.Low level Steps74.Impact84.1.Planned impact84.1.1.Service Impact84.1.2.Network Impact84.1.3.KPI Impact84.2.Potential impact85.testing105.1.Test Plan106.POST implementation116.1.Post Check Results116.2.Test Results116.3.Actual impact116.3.1.Service Impact116.3.2.Network Impact126.3.3.KPI Impact127.change closure137.1.Closing Comments137.2.Change Success13

Overview of change requested

Change Description

To change the Transmission Equipment (Antenna, RAUs and AMM) in order to implement the necessary capacity for expansions in the Transport Network.

Reason for Change

There is need for more capacity across the Transport Network to facilitate LTE and 4G expansions, hence new link budgets to implement the need for greater capacities were created. Equipment will now be upgraded to suit the link budget to implement the expansion. The link upgrade requires additional cards which will be supported by upgrading the magazine.Link being upgraded: [T183 Fullarton T172 Coromandel]

Before and After Snapshot

IMPLEMENTATION Procedure

Pre ChecksVerify the status of the service of the site (the two sites related to the link), and if there are any current alarms regarding this site. This should be confirmed with the NOC.

#CheckPass / Fail Criteria

T183Check if there is management to the TN (Pass), confirm current alarms

T172Check if there is management to the TN (Pass), confirm current alarms

High level Steps

These steps refer to activities being carried out on [T088] and [T434] in parallel#StepsProposed Start Time / DateProposed End Time / DateService Impact

1Call NOC to notify on site and start of activity11:55am12:00amNo

2Back up configuration on TN12:00am12:05amNo

3Uninstall the current AMM/Antenna12:05am12:25amYes

4Install new AMM/Install new antenna12:25am12:50amYes

5Download Software Baseline R5.1.2 software to the AMM12:50am12:55amYes

6Standardize the software on TN cards and components12:55am1:00amYes

7Confirm configurations on TN1:00am1:05amYes

8Install RAU/Complete connections1:05am1:15amYes

9Power On Link1:15am1:20amYes

10Configure Link1:20am1:30amYes

11Align the Link1:30am2:45amYes

12Confirm TDM Cross connections2:45am2:55amNo

13Call NOC to verify sites on air2:55am3:00amNo

14Confirm with the NOC when leaving site3:00am3:05amNo

Low level StepThe low level follows the high level steps mentioned above where the configuration and alignment of the link follows the below the link budget:Coromandel 172Fullarton 183

Latitude10 07 25.60 N10 05 27.80 N

Longitude061 48 13.10 W061 52 47.30 W

Easting ( m)631074.9622741.3

Northing ( m)1119338.41115690.2

UTM zone20N20N

True azimuth ()246.5766.55

Vertical angle ()-0.440.38

Elevation (m)73.0812.49

Tower height (m)45.0045.00

Antenna modelANT2 0.6 7/8 HP (TR)ANT2 0.6 7/8 HP (TR)

Antenna file name0621095sc15_r10621095sc15_r1

Antenna gain (dBi)31.8031.80

Antenna height (m)25.0020.00

Frequency (MHz)7627.00

PolarizationVertical

Path length (km)9.10

Free space loss (dB)129.29

Atmospheric absorption loss (dB)0.09

Net path loss (dB)65.7965.79

Radio modelMLTN 7/2X 035/128MLTN 7/2X 035/128

Radio file namee24072001600035e24072001600035

TX power (dBm)18.0018.00

Emission designator6M12D7W6M12D7W

EIRP (dBm)49.8049.80

TX channel assignments7c25 7550.50V7c25' 7704.50V

RX threshold criteria1E-6 BER1E-6 BER

RX threshold level (dBm)-72.00-72.00

Receive signal (dBm)-47.79-47.79

Thermal fade margin (dB)24.2124.21

Dispersive fade margin (dB)62.4062.40

Dispersive fade occurrence factor3.00

Effective fade margin (dB)24.2124.21

Geoclimatic factor2.231E-005

Grazing Angle222222.00

Path inclination (mr)7.21

Average annual temperature (C)25.31

Fade occurrence factor (Po)8.165E-011

Worst month multipath availability (%)100.00000100.00000

Worst month multipath unavailability (sec)0.000.00

Annual multipath availability (%)100.00000100.00000

Annual multipath unavailability (sec)0.000.00

Annual 2 way multipath availability (%)100.00000

Annual 2 way multipath unavailability (sec)0.00

PolarizationVertical

Rain regionITU Region P

0.01% rain rate (mm/hr)145.00

Rain rate (mm/hr)897.41

Flat fade margin - rain (dB)24.21

Rain attenuation (dB)24.21

Annual rain availability (%)100.00000

Annual rain unavailability (min)0.00

Annual rain + multipath availability (%)100.00000

Annual rain + multipath unavailability (min)0.00

Standard Change Parameter Change

For standard changes, this section is the only section that need to be updated. No other section should change and the MOP will still be valid.rollback Procedure

Rollback TriggerA roll back will be conducted for but not limited to the following The Link Drops and cannot be re-established Faulty MMU2K Cards Interference found after link is established

High level Steps

#StepsProposed Start Time / DateProposed End Time / DateService Impact

1Agree with Digicel SPOC to rollback2:30am2:35amYes

2Uninstall new component2:35am2:55amYes

3Install old component (antenna/RAU/AMM)2:55am3:25amYes

4Power On Link3:25am3:35amYes

5Configure Link3:35am3:45amYes

6Align the Link3:45am4:15amYes

7Call NOC to verify sites on air4:15am4:20amNo

8Confirm with the NOC when leaving site4:20am4:25amNo

0. Low level StepsThe low level follows the high level steps mentioned above, where the old TN configurations which were stored are re-configured.Impact

Planned impact

Service Impact2G and 3G Services of the site:

Details of ImpactMagnitude of impactCustomers Impacted Start timeEnd time

2G Services: No Service/T183 Fullarton and T172 Coromandel12:00am3:00am

2G Services: No Service/ T172 Coromandel and T216 Bonasse12:00am12:25am

3G Services:No Service (T172 Coromandel)12:00am12:25am

Network Impact 2G and 3G Services of the site:





KPI Impact2G and 3G Services unavailable:





0. Potential impact

Potential ImpactTrigger for impactRisk of OccurrenceMitigations in Place

Site Remains off air Faulty Microwave System componentsLowSpare components on site.

testing

Test No.CategoryTestExpected ResultSuccess Criteria

S1Service Verification2G and 3G sites taking traffic

Voice will be accessible

Traffic being taken on site

O1Operational Verification2G and 3G sites on air and able to connectConnection successfulAble to connect

A1Alarm VerificationVerify the TN alarms.No Alarms.No Alarms after Operations

Test Plan

POST implementation

Post Check Results

Check No.CheckPass / Fail

1

Test ResultsTest No.ResultPass / FailComment

Actual impact

Service Impact

Details of ImpactMagnitude of impactCustomers Impacted Start timeEnd timeComparison with Planned impact

NO IMPACT

Network Impact


NO IMPACT

KPI Impact


NO IMPACT

change closure

Closing Comments

Change Success

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Technical Method of Procedure TemplatePage 8 of 14

mop for 1+0 link upgrade with amm upgrade t183 - t172

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