Intern Report
description
Transcript of Intern Report
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.