son usage and implementation in starhub
TRANSCRIPT
![Page 1: SON Usage and Implementation in StarHub](https://reader034.vdocument.in/reader034/viewer/2022042608/55cf9b46550346d033a564b3/html5/thumbnails/1.jpg)
1 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
SON Usage and Implementation in StarHub LTE Project (Singapore)
By: Rudi Wijaya
Dept. / Author / Date
![Page 2: SON Usage and Implementation in StarHub](https://reader034.vdocument.in/reader034/viewer/2022042608/55cf9b46550346d033a564b3/html5/thumbnails/2.jpg)
2 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
AGENDA
StarHub LTE Network
Optimizer Overview
ANR Management by Optimizer
PCI Analysis
![Page 3: SON Usage and Implementation in StarHub](https://reader034.vdocument.in/reader034/viewer/2022042608/55cf9b46550346d033a564b3/html5/thumbnails/3.jpg)
3 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
AGENDA
StarHub LTE Network
Optimizer Overview
ANR Management by Optimizer
PCI Analysis
![Page 4: SON Usage and Implementation in StarHub](https://reader034.vdocument.in/reader034/viewer/2022042608/55cf9b46550346d033a564b3/html5/thumbnails/4.jpg)
4 © Nokia Siemens Networks 2012
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NSN SON Suite Features in Radio and OSS
Self-
Healing
Self-
Optimization
Self-
Configuration
Mobility Load Balancing
Power Saving
Plug & Play
Cell Outage Detection, Reset
and Compensation
Mobility Robustness (MRO)
Automated Neighbor Relat.
Interference Optimization
Drive Test Minimization (MDT)
Alarm Correlation, Root Cause Analysis
PRACH Management
Nokia Siemens Networks E2E SON Suite
LTE SON
2G/3G SON
Open northbound interfaces
SON
Other vendor’s network
Énhanced Packet core
Distributed SON
Centralised SON
![Page 5: SON Usage and Implementation in StarHub](https://reader034.vdocument.in/reader034/viewer/2022042608/55cf9b46550346d033a564b3/html5/thumbnails/5.jpg)
5 © Nokia Siemens Networks 2012
For internal use
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StarHub LTE Network
• LTE 1800 with 2G RF Sharing
• Not using SON Plug and Play hence there is no DHCP server
• Implement and Using Nokia Siemens Networks’ LTE ANR strategy
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6 © Nokia Siemens Networks 2012
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StarHub LTE Network
• NetAct
OSS5.3 MP1
• Optimizer
Optimizer 3.0 MP2 CD’s 4772 & 4773
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7 © Nokia Siemens Networks 2012
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Optimizer Functionalities in StarHub LTE Network
• PCI-IP Mapping Creation
• Physical Cell ID management
• Analyze PCI collisions and violations
• Reallocate PCI
• Visualize PCI reuse on map
• Forbidden Code Set
• Antenna Editor
• Distance-based adjacency creation (LTE->GSM)
![Page 8: SON Usage and Implementation in StarHub](https://reader034.vdocument.in/reader034/viewer/2022042608/55cf9b46550346d033a564b3/html5/thumbnails/8.jpg)
8 © Nokia Siemens Networks 2012
For internal use
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AGENDA
StarHub LTE Network
Optimizer Overview ANR
Management by Optimizer
PCI Analysis
![Page 9: SON Usage and Implementation in StarHub](https://reader034.vdocument.in/reader034/viewer/2022042608/55cf9b46550346d033a564b3/html5/thumbnails/9.jpg)
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Optimizer
Dept. / Author / Date
![Page 10: SON Usage and Implementation in StarHub](https://reader034.vdocument.in/reader034/viewer/2022042608/55cf9b46550346d033a564b3/html5/thumbnails/10.jpg)
10 © Nokia Siemens Networks 2012
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Foreign cluster CM data
Other vendor CM data
Local cluster CM data
Provisioning
Foreign cluster CM data
Other vendor CM data
Local cluster CM data
Local NetAct cluster xml
CM DB
Plan
OPT DB
Foreign NetAct cluster
Vendor X cluster
Plan
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Provisioning process using CM applications
Export CM Plan from Optimizer
Check Plan CM Analyser
Transfer plan to NW CM Operations Mgr End
Prepare Plan (automatic) CM Operations Mgr
Modify Plan (optional) CM Editor
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12 © Nokia Siemens Networks 2012
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NetAct tools used in the ANR operation
• CM Editor
• CM Operations Manager
• Optimizer
• SON Scheduler
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13 © Nokia Siemens Networks 2012
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RL 25TDD, RL 30
SITE
BTS(eNB)
CELL
Intra LTE Adjacency (pointer
to target eNB)
ADJLL, LNREL
X2
Mobile triggers LNREL creation.
eNB creates it automatically for all
the neigbors that are reported.
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LTE Network Elements (RL 25TDD, RL 30)
LNADJ
LNADJ 1..6
0..64
LNCEL
ADJLL
0..389
LNBTS
LNREL
0..389
Present in CM and in Optimizer
Present only in Optimizer
Optimizer creates an ADJLL for
each LNADJ that doesn’t have
the corresponding LNREL.
![Page 15: SON Usage and Implementation in StarHub](https://reader034.vdocument.in/reader034/viewer/2022042608/55cf9b46550346d033a564b3/html5/thumbnails/15.jpg)
16 © Nokia Siemens Networks 2012
For internal use
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AGENDA
StarHub LTE Network
Optimizer Overview
ANR Management by Optimizer
PCI Analysis
![Page 16: SON Usage and Implementation in StarHub](https://reader034.vdocument.in/reader034/viewer/2022042608/55cf9b46550346d033a564b3/html5/thumbnails/16.jpg)
17 © Nokia Siemens Networks 2012
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Optimizer 3.0 CD3 for LTE
Use cases for Optimizer in LTE network:
1. New planned eNBs in the network
2. Handover in LTE network : case of an unknown cell
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Automated Neighbor Relation (ANR) Features
Dept. / Author / Date
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Architecture of Automated Neighbor Relation (ANR)
Dept. / Author / Date
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LTE 782 – ANR UE Fully Based 1/2
Dept. / Author / Date
eNB1 eNB2 MME
1.) S1AP: ENB CONFIGURATION TRANSFER
to eNB2-ID (SON Information Request)
3.) S1AP: ENB CONFIGURATION TRANSFER
to eNB1-ID (SON Information Response with IP@)
2.) S1AP: MME CONFIGURATION TRANSFER
to eNB2-ID (SON Information Request)
4.) S1AP: MME CONFIGURATION TRANSFER
to eNB1-ID (SON Information Response with IP@)
X2 Establishment
3GPP TS36.300 section 22.3.6.1
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LTE 782 – ANR UE Fully Based 2/2
Dept. / Author / Date
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Not Implementing LTE 782 - ANR UE Fully Based
• Current NSN MME has been upgraded to NS2.1
• ANR UE Fully Based is supported only in NS2.2.
• Radio part is OK and Tested!
• Where CGI resolution of Target eNB can be seen and transfer to Source eNB. Afterward, it should get X2 CP IP Addr given by MME. Unfortunately MME is not transferring the needed information to Target eNB.
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Optimizer 3.0 CD3 for LTE LTE492 Automated Neighbor Relation (ANR)
In autoconfiguration the neighbor eNBs’ IPs are stored in ADIPNO object or in LNADJs and the eNBs get this data from Configurator.
Based on this the X2 connection to neighbor relations can be established.
PCI = 3
PCI = 4 PCI = 5
IP@ = 1
PCI = 0
PCI = 1 PCI = 2
IP@ = 2
PCI 4
ADIPNO
IP@1
IP@2
IP@3
IP@4
…..
IP@32
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24 © Nokia Siemens Networks 2012
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LTE492: Automated Neighbor Relation (ANR)
Dept. / Author / Date
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25 © Nokia Siemens Networks 2012
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Preparation for Optimizer
• In optimizer, sites can be listed by using browser
• Site list can be exported and check the consistency with on-air sites from MR-Status
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26 © Nokia Siemens Networks 2012
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Preparation for Optimizer
• Add the new sites and updated the sites with changed antenna information
• Prepared the Outdoor and Indoor Antenna Import Files
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Preparation for Optimizer
• When importing the antenna data files in Antenna Data Editor (Optimizer), you may have a message in problem window
• Recommended to check the same line number in your imported excel file
• Probably because of wrong cell name, missing antenna data, 2-sector and indoor misconfiguration
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Preparation for Optimizer
• Antenna Data now fully integrated to NetAct OSS and sites are ready to be used in Optimizer
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Preparation for Optimizer
• “Refresh Actual” and ready to go for PCI-IP mapping
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Creating PCI-IP Mapping Table
• Create a New Plan for your job
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Creating PCI-IP Mapping Table
• Check site to site distance to know the range to define the neighbor
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Creating PCI-IP Mapping Table
• After planning site to site distance to define the range, you can now put the search distance
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Creating PCI-IP Mapping Table
• Now you can create PCI-IP mapping table for your selected sites
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Creating PCI-IP Mapping Table
• According to your search distance, the mapping table creation done for neighbour sites.
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Creating PCI-IP Mapping Table
• In order to export optimizer plan, click on CM Data Exchange
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Creating PCI-IP Mapping Table
• Launch CM Operation Manager and Refresh to see your plan
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Creating PCI-IP Mapping Table
• Provision your plan
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39 © Nokia Siemens Networks 2012
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Creating PCI-IP Mapping Table
• Provision your plan
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Creating PCI-IP Mapping Table
• If there is no error and finished the provision, PCI-IP mapping tables are now successfully created in NetAct OSS
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Creating PCI-IP Mapping Table
• Check the sites with PCI-IP mapping table in NetAct
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Creating PCI-IP Mapping Table
• Now ready to go out for drive testing and you will see the successful hand over in the field
• You can also see the LNADJ after coming back from drive testing
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StarHub LTE Network
• Downlink Throughput
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LTE784: ANR InterRAT GERAN
Dept. / Author / Date
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45 © Nokia Siemens Networks 2012
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Creating LNRELG
• As the project is LTE-2G RF sharing, distance-based adjancy creation can be used.
• For creation of LTE=> GSM adjancies
• Save the result into the plan and continue results verification in Browser and on the Map
LNRELG
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Creating LNRELG
• Click on LNRELG and define the search distance according to network topology
• Run and check the result for numbers of LNRELG created
• Listing the results in Browser and also can remove unwanted one
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Example of Inter-RAT LTE to GERAN initial neighbor allocation
Dept. / Author / Date
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AGENDA
StarHub LTE Network
Optimizer Overview
ANR Management by Optimizer
PCI Analysis
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Physical-layer Cell Identities (PCIs)
PCI group
0
1
2
165
166
…
167
0 1 2
3 4 5
6 7 8
495 496 497
498 499 500
… … …
501 502 503
PCI offset
0 1 2
23
14
1
66
412
502
234
322
98
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PCI Collisions and Confusions
• 3GPP defines collision-free as “the PCI is unique in the area that the cell covers”
• 3GPP defines confusion-free as “a cell shall not have neighboring cells with identical PCIs”
ideally only initial PCI values
need to be assigned
PCI values of ACTUAL cells
need to be changed
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PCI Management
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Analyze PCI collisions and violations 1/5
Dept. / Author / Date
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Analyze PCI collisions and violations 2/5
Dept. / Author / Date
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Analyze PCI collisions and violations 3/5
Dept. / Author / Date
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Analyze PCI collisions and violations 4/5
Dept. / Author / Date
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Analyze PCI collisions and violations 5/5
Dept. / Author / Date
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Forbidden Codes
• Customer want to reserve some PCI group for future Femto Cells
• In this case, there are some codes that cannot be used in the allocation
• Create a new Forbidden Code Set and assign to the cells
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Summary
• Efficient, Easy and User Friendly
• Geographical visualization and Analysis
• Powerful CM parameters management with Browser
• Effective parameters changes
• Speed up the rollout project with accurate neighbor creation and parameters managements
• Good Customer’s Impression on Optimizer for NSN ANR method giving a quick successful handover in the field during the drive test
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59 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
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+62 812 1083902
Rudi Wijaya LTE eNB CLT APAC
Thank You…
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