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
Oct 26, 2015
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
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
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
4 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
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
5 © Nokia Siemens Networks 2012
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LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
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
6 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
StarHub LTE Network
• NetAct
OSS5.3 MP1
• Optimizer
Optimizer 3.0 MP2 CD’s 4772 & 4773
7 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
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)
8 © Nokia Siemens Networks 2012
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LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
AGENDA
StarHub LTE Network
Optimizer Overview ANR
Management by Optimizer
PCI Analysis
9 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
Optimizer
Dept. / Author / Date
10 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
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
11 © Nokia Siemens Networks 2012
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LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
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
12 © Nokia Siemens Networks 2012
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LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
NetAct tools used in the ANR operation
• CM Editor
• CM Operations Manager
• Optimizer
• SON Scheduler
13 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
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.
15 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
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.
16 © 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
17 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
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
18 © Nokia Siemens Networks 2012
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LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
Automated Neighbor Relation (ANR) Features
Dept. / Author / Date
19 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
Architecture of Automated Neighbor Relation (ANR)
Dept. / Author / Date
20 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
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
21 © Nokia Siemens Networks 2012
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LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
LTE 782 – ANR UE Fully Based 2/2
Dept. / Author / Date
22 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
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.
23 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
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
24 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
LTE492: Automated Neighbor Relation (ANR)
Dept. / Author / Date
25 © Nokia Siemens Networks 2012
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LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
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
26 © Nokia Siemens Networks 2012
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LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
Preparation for Optimizer
• Add the new sites and updated the sites with changed antenna information
• Prepared the Outdoor and Indoor Antenna Import Files
27 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
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
28 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
Preparation for Optimizer
• Antenna Data now fully integrated to NetAct OSS and sites are ready to be used in Optimizer
29 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
Preparation for Optimizer
• “Refresh Actual” and ready to go for PCI-IP mapping
30 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
Creating PCI-IP Mapping Table
• Create a New Plan for your job
31 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
Creating PCI-IP Mapping Table
• Check site to site distance to know the range to define the neighbor
32 © Nokia Siemens Networks 2012
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LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
Creating PCI-IP Mapping Table
• After planning site to site distance to define the range, you can now put the search distance
34 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
Creating PCI-IP Mapping Table
• Now you can create PCI-IP mapping table for your selected sites
35 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
Creating PCI-IP Mapping Table
• According to your search distance, the mapping table creation done for neighbour sites.
36 © Nokia Siemens Networks 2012
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LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
Creating PCI-IP Mapping Table
• In order to export optimizer plan, click on CM Data Exchange
37 © Nokia Siemens Networks 2012
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LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
Creating PCI-IP Mapping Table
• Launch CM Operation Manager and Refresh to see your plan
38 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
Creating PCI-IP Mapping Table
• Provision your plan
39 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
Creating PCI-IP Mapping Table
• Provision your plan
40 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
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
41 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
Creating PCI-IP Mapping Table
• Check the sites with PCI-IP mapping table in NetAct
42 © Nokia Siemens Networks 2012
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LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
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
43 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
StarHub LTE Network
• Downlink Throughput
44 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
LTE784: ANR InterRAT GERAN
Dept. / Author / Date
45 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
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
46 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
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
47 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
Example of Inter-RAT LTE to GERAN initial neighbor allocation
Dept. / Author / Date
48 © 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
49 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
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
50 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
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
51 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
PCI Management
52 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
Analyze PCI collisions and violations 1/5
Dept. / Author / Date
53 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
Analyze PCI collisions and violations 2/5
Dept. / Author / Date
54 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
Analyze PCI collisions and violations 3/5
Dept. / Author / Date
55 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
Analyze PCI collisions and violations 4/5
Dept. / Author / Date
56 © Nokia Siemens Networks 2012
For internal use
LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
Analyze PCI collisions and violations 5/5
Dept. / Author / Date
57 © Nokia Siemens Networks 2012
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LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
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
58 © Nokia Siemens Networks 2012
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LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
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
59 © Nokia Siemens Networks 2012
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LTE CLT Sharing Session_Indonesia / Ver. 1.0 / Rudi Wijaya
Nokia Siemens Networks Nokia Siemens Networks
Jakarta – INDONESIA
+62 812 1083902
Rudi Wijaya LTE eNB CLT APAC
Thank You…