Intern Report

13
BROADCOM LIMITED INTERNSHIP REPORT (15 FEBRUARY TO 15 APRIL) AUTHOR HAMZA HASSAN

description

ericsson TN r4 upgrade

Transcript of Intern Report

BROADCOM LIMITED

INTERNSHIP REPORT

(15 FEBRUARY TO 15 APRIL)

AUTHOR

HAMZA HASSAN

Contents

SUMMARY OF TASK PERFOMED ............................................................................................ 3

STEPS TAKEN TO ACCOMPLISH EACH ACTIVITY.............................................................. 5

1. LINK UPGRADE 2+0 ......................................................................................................... 5

A. Materials required ............................................................................................................ 5

B. Antenna Installation ......................................................................................................... 5

C. Link Configuration ........................................................................................................... 6

2. MMU SWAP ....................................................................................................................... 8

3. TN SWAP .......................................................................................................................... 10

4. NPU SWAP ....................................................................................................................... 11

BENEFITS GAINED.................................................................................................................... 13

CONCLUSION ............................................................................................................................. 13

SUMMARY OF TASK PERFOMED

LINK SITE NO. ACTIVITY DONE

Mtwara <> Mtwara TTCL MTR012<>TTCL Link upgrade from 1+0 to 2+0

Mtwara <>Chuno MTR012<>MTR016 Link upgrade and swapped NPU 3 to

NPU 3C

Mtwara <>Mabatini MTR012<>MTR037 Link upgrade

Survey <>Mlalakuwa DAR231<>DAR068 New 2+0 link

NIC <> Lindi DAR022<>DAR New 2+2 link

NIC --------- Aghakan XPIC correction

KaweMzimuni--KaweBeach

Swapped TN at KaweMzimuni and

upgraded KaweMzimuni-<46E1>-

KaweBeach

Mabibo_TGNP ---- Manzese DAR <>DAR042 Swapped TN at Manzese from 6pB to

20P

MbeziMikanga<>Msakuzi

Swapping MMU 2C to MMU 3A on

MbeziMikanga<>Msakuzi, Upgraded to

46E1 and created Packet Link of

40Mbps

Kibwegere<>PilikaPilika

Swapped TN at PilikaPilika, Swapped

MMU and Upgraded

Kibwegere<46E1>PilikaPilika<46E1>L

uguruni

Mchalingeni<>Buza Swapped TN at Mchalingeni and

upgraded Mchalingeni<46E1>Buza

Mtava<>IlalaBungoni Swapped TN at Mtava and upgraded

Mtava<46E1>IlalaBungoni

KivuleMpya<>Chamanzi Swapped MMU and upgraded

KivuleMpya<46E1>Chamanzi

KimangaTBT<>KimangaSunset Swapped MMU and upgraded

<>Tabata<>TabataRelini

KimangaSunset<46E1>Tabata

TabataJeshini<>TabataKisiwani

Swapped TN at TabataJeshini and

upgraded

TabataJeshini<46E1>TabataKisiwani

LINK SITE NO. ACTIVITY DONE

KimaraKorogwe<>KimaraBaratu Link upgrade to 2+0 from 1+0

BuyuniZavara<>MajoheShule

Swapped MMU to MMU 3A and link

upgraded

BuyuniZavara<46E1>MajoheShule

UkongaKM<>KipunguniB Swapped MMU and upgraded

UkongaKM<46E1>KipunguniB

MwanaMtoti<>MbagalaMission<>Kijichi

Swapped TN at MbagalaMission and

upgraded

MwanaMtoti<46E1>MbagalaMission

and created packet Link of 40Mbps

from MwanaMtoti to Kijichi

STEPS TAKEN TO ACCOMPLISH EACH ACTIVITY

1. LINK UPGRADE 2+0

A. Materials required

i. Two HPX antenna

ii. Wave guard Kit(Optional)

iii. Two RAU

iv. Four MMU(MMU2H, MMU3A, MMU2D)

v. Two AMM (6p, 20p) with its Modules

vi. IF cables.

B. Antenna Installation

i. Install the set of the antenna after correct assembly of its parts at the

appropriate height as requested in the Link Budget

The figure 1 shows the antenna mounted with its RAU on appropriate height at KimaraBaratu

ii. Smartly run the IF cable from the RAUs to the RBS cabinet and terminate the

IF cable correctly.

iii. Label the IF cable correct.

C. Link Configuration

i. Insert the MMUs to unused slot of the magazine and clear all alarms that you

encounter with the new MMUs

ii. Insert the IF drop cable to the appropriate MMU ( even number slot for

Vertical polarization and next odd number slot for Horizontal polarization

iii. Configure the link configuration parameters to the MMUs by providing the

correct Terminal ID and correct Far End ID, correct TX & RX frequency and

appropriate Transmitter power and capacity

iv. After configuration is completed for both ends power the radio of the vertical

polarization then do the panning of the antenna by the help of the Multimeter

to achieve the planned RSL +-3dBm

The figure 2 showing the RSL and the link achieved through vertical polarization

v. After the link is achieved through vertical then eliminate the cross polarization

interference XPIC by twisting the coupler with vertical ON and horizontal

OFF to achieved XPD (difference of horizontal interference to RSL achieved)

between 28dBm and 33dBm as shown on figure 2 below

Figure 3 shows the XPIC achieved to form XPD of 32dBm

vi. After achieving good XPD for both ends then turn ON the horizontal radio to

achieve both links (vertical and horizontal)

2. MMU SWAP

i. Backup the Link configuration of the MMU to swapped (Near End and Far

End)

ii. Backup the E1 routed by the MMU interface to be swapped or the traffic

routing overview as shown of figure below

The figure 4 shows the E1 routed for 2G traffic

iii. Bach the 3G information that are carried by the MMU to be swapped (WAN,

PDH-IME, RL-IME, LAN, VLAN, Layer 1 information)

iv. After backing up all the information the reset the MMU to be swapped

v. Press the BR for MMU to swapped and remove it from the TN and safely

recover it to the warehouse

vi. Clear all alarms that encounter the slot that was used by the recovered MMU

(clear reservation alarm)

vii. Upgrade the TN to the latest release for the case of MMU3A

viii. After no alarm exit in the TN slots then insert the new MMU on the previous

slot or any free slot per the scope of the work (Link Diagram).

ix. Plug in the IF japer cable and configure the link from the backup information

x. Reroute all the E1’s and reconfigure the 3G information from the back up

information swapped (WAN, PDH-IME, RL-IME, LAN, VLAN, Layer 1

information)

The figure 5 shows the VLAN configuration showing the connected RNC for NodeB

3. TN SWAP

i. Backup the Links configuration of all MMU in the TN (Near End and Far End)

ii. Backup the E1 routed by each MMU interface in the TN

iii. Backup the Basic NE of the TN to be swapped

iv. Backup the DCN information of the TN (OSPF areas)

v. Bach the 3G information that are carried each MMU in the TN (WAN, PDH-

IME, RL-IME, LAN, VLAN, Layer 1 information)

vi. After backing up all the information then reset the MMU’s one at time

vii. Press the BR of MMUs and remove it from the TN

viii. Upgrade the new TN to the latest release

ix. After no alarm exit in the TN slots then insert MMUs on the same slot as the

previous TN

x. Plug in the IF japer cable and configure the links from the backup information

xi. Reroute all the E1’s and reconfigure the 3G information from the back up

information (WAN, PDH-IME, RL-IME, LAN, VLAN, Layer 1 information)

xii. Reconfigure the DCN and the Basic NE of the TN from the backup information

The figure 6 shows the Basic Network Element configuration

4. NPU SWAP

NPU swap is the same as TN swap. The only difference is that there is no need to remove

the MMU from the TN

i. Backup the Links configuration of all MMU in the TN (Near End and Far End)

ii. Backup the E1 routed by each MMU interface in the TN

iii. Backup the Basic NE of the TN to be swapped

iv. Backup the DCN information of the TN (OSPF areas)

v. Bach the 3G information that are carried by each MMU in the TN (WAN,

PDH-IME, RL-IME, LAN, VLAN, Layer 1 information)

vi. After backing up all the information the reset the MMUs one at time

vii. Upgrade the new TN to the latest release

viii. Reroute all the E1’s and reconfigure the 3G information from the back up

information (WAN, PDH-IME, RL-IME, LAN, VLAN, Layer 1 information)

ix. Reconfigure the DCN and the Basic NE of the TN from the backup information

The figure 7 shows the DCN configuration for the site

BENEFITS GAINED

The internship period was a fruitful for my career, I have gained a lot by sandwiching principals

and theories I have acquired throughout my education with perfect field training.

I have learned to work as a team to accomplish the tasks and projects. I have increased my self-

initiative by injecting some good ideas in and out the field. I have been able to acquire and

learned and see how the GSM architecture in made out of the equipment used and their

functions.

CONCLUSION

Great thanks goes to the team, they have highly contributed for my train to be successful by

giving the needed support and challenges. Second thanks goes to the company by giving me this

chance to expand my knowledge and experience which will help in my career.