01_LTE _ Nokia vendor- OSS _ aspects.pdf

01_LTE _ Nokia vendor- OSS _ aspects

1. •Performance measurements within OSS hierarchy
•Performance measurement activation and architecture
•PM files structure
OSS Aspects

2. Other ACCESS Technologies
NETACT/ Nokia counters/KPI
Diagnostics at OSS/PLMN layer
Drive test Radio measurements only at cell layer
Probing at eNBs
OSS Nokia/NetAct
implementation within LTE
NetActmanaged RRM/field
counters, phases, and KPIs to
detect faults and ensures QoS
requirements at all layers
•PLMN level
•Mobility Management Entity
(MME)
•S1/X2
•eNBlevel
•Cell level
Probing and drive test is based
on trouble shooting at single
eNB/cell area.
Radio, transmission monitoring
S1
S1
S1
S1
OSS level
X 2
X 2
SAE GW
LTE Measurement Hierarchy

3. Grouped reporting Radio Access counters and their KPI's
Group
8xxx
SAE GW
MME
eNB
S1 signaling
M 8005
M 8010
Air interface
QoS
M 8009
M 8013
M 8014
M 8015
Mobility/HO
eNB
LTE
Cell`s
M 8001
M 8004
M 8011
M 8012
M 8018
Load
measurements
M 8000
M 8006
M 8007
M 8008
Access/drop
LTE Performance Measurements

4. cell
cell
cell
GPS
A-GPS Server
Interface
X 2
SAE GW
Group of M8xxx counters cell level & traffic
M 8012 PDCP/RLC/MAC Cell throughput
Traffic
M 8011 PRB per TTI
Traffic
M 8001 Cell Load packet scheduling related
measurements
Traffic
LTE Performance Measurements

5. cell
cell
cell
GPS
A-GPS Server
Interface
X 2
SAE GW
Group of M8xxx counters eNodeB QoS, HO, air
interface, field, traffic
M 8010 CQI eNB DL air interfaceQoS
M 8018 UE per eNB load
Traffic
M 8005 SINR / RSSI UL
measurement
Field measurements
M 8015 X2/RAN HO
for each adjacency
M 8014 X2/S1/ Inter BTS HO
M 8009 intra BTS HO
LTE Performance Measurements

6. cell
cell
cell
GPS
A-GPS Server
Interface
X 2
SAE GW
Group of M8xxx counters access,
Retainability/soft drop
M 8009 RAN
intra BTS HO
RAN RB drop M 8007 SRB/DRB setup/release/drop
M 8008 RRCRAN setup access drop
M 8014 X2/RAN Inter BTS HO
Soft drop
M 8006 EPS Bearer setup/release/drop
eRAB Access
M 8000 S1 setup/release
RAN Access
LTE Performance Measurements

7. cell
cell
cell
GPS
A-GPS Server
Interface
X 2
SAE GW
Group of M8xxx counters at RAN, MME, traffic,
states
M 8013 RAN/MME states/RRC/EMC
M 8004 Transport Load GTP-User planeTrafficM 8004 Transport Load GTP-User plane
•LTE UE State measurement measures UE State Management
LTE Performance Measurements
Transport Load measured at
GTP-U protocol

8. LTE EPS Bearer measurement (M8006)
OSS Monitoring Example
LTE_5017a E-RAB Setup Success Ratio
LTE_5086a E-RAB Setup Failure Ratio RNL
LTE_5087a E-RAB Setup Failure Ratio TNL
LTE_5088a E-RAB Setup Failure Ratio RESC
LTE_5089a E-RAB Setup Failure Ratio OTH
LTE_5023b E-RAB Normal Release Ratio, User Perspective
LTE_5024b E-RAB Normal Release Ratio, RAN View
LTE_5025b E-RAB Drop Ratio, RAN View
LTE_5090a E-RAB Drop Ratio RNL, eNB initiated

9. •Performance measurements within OSS hierarchy
•Performance measurement activation and architecture
•PM files structure
OSS Aspects

10. •Groups of counters
activated/deactivated within Flexi
MultiradioBTS with NetActtools.
•The measurement interval is
configurable to 15, 30 or 60 minutes or
6, 12, or 24 hours.
•The upload interval is configurable (15,
30 or 60 min)
•When the reporting interval expires a
notification is sent to NetActindicating
that on or more PM files are ready for
transfer
Performance Management Architecture Overview
Reporting Suite (RS)
BTS Site manager
Configuration file
(Measurement
activation)
Administration of
Measurements (AoM)
PM
Measurement
collection
storage
Upload
notification
PM
Upload
PM-report
file
iOMS
NetAct
Flexi
Multiradio
BTS
Network Performance
Manager (NPM)

11. •Operator is able to
activate different
measurement types
(group of logically related
PM-counters) per Flexi
MultiradioBTS
•One file per measurement
type per granularity
period is created
•After expiry of the upload
interval all measurement
type files are merged into
a single PM-report file
which is uploaded to NMS
•Each PM-report file is
stored for 24 hours before
being deleted
PM Data Structure
PM-report file
Measurement type Y
Measurement type X
merged
Measurement type Z

12. eNB
multiple xml
/tmp
iOMS
collected xml
Southbound IF Northbound IF
NetAct
Oracle DB
Reporting Suite
Network Performance Manager
KPI reports
Kpireporter
(Custom SQL queries)
OR 3
rd
party sw
(data warehouse +
analysis) through
“measurement
data export”
interface
parametrization
Performance management counter data flow
PostgreSQL –DB
(cross-platform)
(parsing: kpireporter)

13. •Aggregation levels and reporting –exemplary Reporting
Suite output
Aggregation levels and reporting –example Reporting Suite output
Report name
Export to excel
Filtered and aggregated report for
the selected object
Content of the report grouped into
functional areas
Period of the
measurement
report

14. •Performance measurements within OSS hierarchy
•Performance measurement activation and architecture
•PM files structure
OSS Aspects

15. PM File Examples
Cell ECI xy = btsId x 256 + lcrId
btsId= 11 (LNBTS –btsId== LNBTS-11)
lcrId= 1
XY= 11 x 256 +1 = 2816 + 1 = 2817
=> ECI -2817
M8015 : LTE Neighbor cell related Handover
<localMoid>DN:NE-LNBTS-721259/LNCEL-1/MCC-000/MNC-00/ECI-184582411/MCC-
000/MNC-00</localMoid>
BTS ID == 721025
Lcrid== 11