02_RA47052EN16AGLA0_KPI_overview.pdf

KPI Overview Slide 1

NokiaEDU KPI Overview LTE Optimization Principles [FL16A] Module 02

RA47052EN16AGLA0

© Nokia 2016

RA47052EN16AGLA0

1


Copyright and confidentiality

The contents of this document are proprietary and confidential property of Nokia. This document is provided subject to confidentiality obligations of the applicable agreement(s). This document is intended for use of Nokia’s customers and collaborators only for the purpose for which this document is submitted by Nokia. No part of this document may be reproduced or made available to the public or to any third party in any form or means without the prior written permission of Nokia. This document is to be used by properly trained professional personnel. Any use of the contents in this document is limited strictly to the use(s) specifically created in the applicable agreement(s) under which the document is submitted. The user of this document may voluntarily provide suggestions, comments or other feedback to Nokia in respect of the contents of this document ("Feedback").

2

Such Feedback may be used in Nokia products and related specifications or other documentation. Accordingly, if the user of this document gives Nokia Feedback on the contents of this document, Nokia may freely use, disclose, reproduce, license, distribute and otherwise commercialize the feedback in any Nokia product, technology, service, specification or other documentation. Nokia operates a policy of ongoing development. Nokia reserves the right to make changes and improvements to any of the products and/or services described in this document or withdraw this document at any time without prior notice. The contents of this document are provided "as is". Except as required by applicable law, no warranties of any kind, either express or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose,

RA47052EN16AGLA0

are made in relation to the accuracy, reliability or contents of this document. NOKIA SHALL NOT BE RESPONSIBLE IN ANY EVENT FOR ERRORS IN THIS DOCUMENT or for any loss of data or income or any special, incidental, consequential, indirect or direct damages howsoever caused, that might arise from the use of this document or any contents of this document. This document and the product(s) it describes are protected by copyright according to the applicable laws. Nokia is a registered trademark of Nokia Corporation. Other product and company names mentioned herein may be trademarks or trade names of their respective owners.

© Nokia 2016

RA47052EN16AGLA0

2


Module Objectives • After completing this module, you will be able to:

• Name the documentation for detailed definitions of Nokia KPIs • Explain how to derive network KPIs based on performance counters

4

RA47052EN16AGLA0

© Nokia 2016

RA47052EN16AGLA0

3


Index • Nokia counter-based KPIs

• Transport measurements in eNB

5

RA47052EN16AGLA0

© Nokia 2016

RA47052EN16AGLA0

4


Key Performance Indicators KPI groups overview • Accessibility KPIs characterize the availability of a service, or service element to its users • Retainability (reliability) KPIs characterize Service Drop Rates or to Transport Error Rates - that is, the ratio between erroneous or lost data units and the overall number of data units sent

• Mobility KPIs build a group of statistics related to hand-over procedures - They could be also discussed in the Latency and Accessibility groups as well, because HOrelated KPIs are either service interrupt time or success ratio type KPIs

• Integrity KPIs identify the quality and power of the radio transmission and are one of the most important indicators of network performance

• Usage KPIs give the information on cell resources consumption and throughput

6

RA47052EN16AGLA0

© Nokia 2016

RA47052EN16AGLA0

5


Air interface KPIs LTE • KPIs are categorized to distinguish different performance aspects. • The names indicate the respective category according to 3GPP32.410 and 3GPP32.450.

Accessibility: RRC Setup Success Rate E-RAB Setup Success Rate S1 Setup Success Call Setup Success Rate

eNodeB1

UE

Usage: Cell Availability Resource Block Usage IP/PDCP/RLC Layer Throughput

Integrity: Average CQI Average Latency RLC PDU Retransmission eNodeB2

Inter RAT X redirection

X2

X Retainability: RRC Drop Rate E-RAB Drop Rate

7

Mobility: Intra eNodeB HO Success Rate Inter eNodeB HO Success Rate

RA47052EN16AGLA0

© Nokia 2016

RA47052EN16AGLA0

6


Introduction List of top level KPIs Category A vailability

A ccessibility

• These are most important LTE KPIs per each category

Retainability

Integrity / Quality

Mobility

Usage

8

Key Performance Indicator E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN E-UTRAN

RA47052EN16AGLA0

Cell Availability Ratio Initial E-RAB Accessibility Total E-UTRAN RRC Connection Setup Success Ratio Initial E-RAB Setup Success Ratio Data Radio Bearer Setup Success Ratio RRC Paging Discard Ratio RACH Setup Completion Success Rate E-RAB Setup Success Ratio E-RAB Drop Ratio, RAN View Total E-UTRAN RRC Connection Re-establishment Success Ratio E-RAB Retainability Rate, RAN View, RNL Failure with UE Lost Average PDCP SDU Delay in DL, QCI1-9 RLC PDU Re-transmission Ratio Uplink RLC PDU Re-transmission Ratio Downlink PDCP SDU Loss Ratio in the UL PDCP SDU Loss Ratio in the DL Average CQI incoming IP Traffic Error Ratio Average Latency Downlink Average Latency Uplink Total HO Success Ratio, intra eNB Total HO Success Ratio, inter eNB X2 based Total HO Success Ratio, inter eNB S1 based Inter RAT Total HO Success Ratio average PDCP Layer Active Cell Throughput DL average PDCP Layer Active Cell Throughput UL Average Active UEs with data in the buffer DL Average Active UEs with data in the buffer UL Averaged IP scheduled Throughput in DL, QCI1-9 Averaged IP scheduled Throughput in UL, QCI1-9 Average RRC Connected UEs Average PRB usage per TTI UL average PRB usage per TTI DL

KP ID LTE_5750a LTE_5060i LTE_5218f LTE_5112c LTE_5003a LTE_5031b LTE_5569a LTE_5017a LTE_5025g LTE_5143a LTE_5581b LTE_5471a - LTE_5479a LTE_5207b LTE_5208a LTE_5310b LTE_5304b LTE_5427b LTE_5076b LTE_5134a LTE_5137a LTE_5043a LTE_5058c LTE_5084b LTE_5198b LTE_5292d LTE_5289d LTE_5800e LTE_5801e LTE_5350a - LTE_5358a LTE_5359a - LTE_5356a LTE_5242a LTE_5273b LTE_5276b

© Nokia 2016

RA47052EN16AGLA0

7


General Measurement Overview (FL16A) Radio Network Measurements • • • • • • • • • • • • • • • • • • • • • • • • •

LTE LTE LTE LTE LTE LTE LTE LTE LTE LTE LTE LTE LTE LTE LTE LTE LTE LTE LTE LTE LTE LTE LTE LTE LTE

9

S1AP (M8000) Cell load (M8001) Transport load (M8004) Power and Quality UL (M8005) EPS bearer (M8006) Radio Bearer (M8007) RRC (M8008) Intra eNodeB handover (M8009) Power and Quality DL (M8010) Cell resource (M8011) Cell throughput (M8012) UE state (M8013) Inter eNodeB handover (M8014) Neighbor cell related handover (M8015) Inter System Handover (M8016) Inter System Handover to UTRAN per NCell (M8017) eNodeB load (M8018) Inter System Handover to GSM per NCell (M8019) Cell availability (M8020) Handover (M8021) X2AP (M8022) UE and Service Differentiation (M8023) Handover to eHRPD per eHRPD bandclass (M8025) QoS measurements (M8026) Handover (RLF trigger)(M8027)

RA47052EN16AGLA0

• • • • • • • • • • • • • • • • • • • • • • •

LTE MAC Measurements (M8029) LTE MBMS (M8030) LTE SINR (M8031) (FDD only) LTE MRO UTRAN frequency related (M8032) LTE Mobility Events (M8033) LTE EUTRA carrier frequency (M8034) LTE S1 SCTP Statistics (M8035) LTE X2 SCTP Statistics (M8036) LTE M3 SCTP Statistics (M8037) LTE RAN Sharing (M8038) LTE GNSS (M8039) [GLONASS] LTE FZAP GNSS (M8041) [FlexiZone] LTE Inter HeNb HO (M8042) LTE RLF Statistics per PMQAP Profile (M8043) LTE BTS Energy Monitoring (M8045) LTE Active Users and Latency, per PMQAP Profile (M8046) LTE Data Volume and Throughput Statistics per PMQAP Profile (M8047) LTE ERAB Statistics per PMQAP Profile (M8048) LTE LTE-U/LAA Resource (M8050) LTE UE Quantity (M8051) LTE RSRP and RSRQ Histogram (M8052) LTE Proximity Services (M8053) LTE VoLTE BLER Histogram (M8054)

© Nokia 2016

RA47052EN16AGLA0

8


Timing Advance Histogram PM-counter • These performance measurements provide feedback about the distribution of subscribers in a radial direction from the antenna based on instantaneous TA (timing alignment) values

d

- TA values are sent to the UE to keep the uplink timing in sync with the downlink one

d

- The TA value is provided by the Random Access response (initial TA) and all subsequent TA commands • New counters are stored in new measurement group: -

M8029 – LTE MAC

-

Measurement interval parameter: PMRNL:mtMAC

d

d

d – range (in m) from the antenna

10

RA47052EN16AGLA0

© Nokia 2016

Note The histogram can reflect the actual range of the cell. However, please note that accuracy of this measurement is still limited (we still can't locate exactly where is the hotspot)

RA47052EN16AGLA0

9


Timing Advance Histogram PM-counter Histogram configuration

Each of the histogram PM-counters represents a bin for a certain distance range

• Based on an operator-configured parameter (LNCEL:expectedCellSize ) eNB is applying a predefined set of PM-counter bins (TA-histogram set) for mapping the measured instantaneous TA-value into a corresponding bin -

#

The value of the parameter is always stored in additional counter TIMING_ADV_SET_INDEX (M8029C0)

Counter bins

• Configuration of the 'expected cell size' can be performed

18000

Manually by the operator or

16000

-

Automatically during the system upgrade when doing the database conversion  Thereby a simple configuration rule is applied, which picks a proper expectedCellSize depending on the configured PRACH cyclic shift ( prachCS) and high-speed flag (hsFlag).

14000 Range [m]

-

2.1 km range

Cell range

5 km range

10 km range

12000

15 km range (def)

10000

8000 6000 4000

2000 0

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 Counter bin

11

RA47052EN16AGLA0

© Nokia 2016

RA47052EN16AGLA0

10


LTE1697 Timing Advance Histogram PM-counter • NetAct name: TIMING_ADV_BIN_1 • Description: This counter provides the total time of UEs (in seconds) that are in the range d (in m) from the antenna depending on the value i of the counter TIMING_ADV_SET_INDEX: i = 1: 0 <= d < 78 i = 2: 0 <= d < 468 i = 3: 0 <= d < 1,006 i = 4: 0 <= d < 1,505 i = 5: 0 <= d < 3,003 i = 6: 0 <= d < 6,006 i = 7: 0 <= d < 10,000 • NetAct name: TIMING_ADV_BIN_2

• Description: This counter provides the total time of UEs (in seconds) that are in the range d (in m) from the antenna depending on the value i of the counter TIMING_ADV_SET_INDEX: i = 1: 78 <= d < 156 i = 2: 468 <= d < 1,014 i = 3: 1,006 <= d < 2,012 i = 4: 1,505 <= d < 3,011 i = 5: 3,003 <= d < 6,006 i = 6: 6,006 <= d < 12,012 i = 7: 10,000 <= d < 19,999 Values 3-30 not shown

12

RA47052EN16AGLA0

© Nokia 2016

P.T.O for full table

RA47052EN16AGLA0

11


Timing Advance Histogram PM-counter 2.1 km range

5 km range

10 km range

15 km range (def)

30 km range

60 km range

100 km range

Counter

M8029C1 M8029C2 M8029C3 M8029C4 M8029C5 M8029C6 M8029C7 M8029C8 M8029C9

from 0 78 156 234 312 390 468 546 624

to 78 156 234 312 390 468 546 624 702

from 0 468 1014 1248 1482 1716 2028 2262 2652

to 468 1014 1248 1482 1716 2028 2262 2652 3042

from 0 1006 2012 2516 3019 3522 4025 4528 5333

to 1006 2012 2516 3019 3522 4025 4528 5333 6138

M8029C10

702

780

3042

3432

6138

M8029C11

780

858

3432

3822

6943

M8029C12

858

936

3822

3900

M8029C13

936

1014

3900

3978

M8029C14

1014

1092

3978

M8029C15

1092

1170

M8029C16

1170

1248

M8029C17

1248

M8029C18

1326

M8029C19

M8029C20 M8029C21

13

from 0 1505 3011 3764 4516 5269 6022 6774 7979

to 1505 3011 3764 4516 5269 6022 6774 7979 9183

from 0 3003 6006 7508 9009 10511 12012 13514 15916

to 3003 6006 7508 9009 10511 12012 13514 15916 18318

from 0 6006 12012 15015 18018 21021 24024 27027 31832

to 6006 12012 15015 18018 21021 24024 27027 31832 36637

from 0 10000 19999 24999 29999 34999 39998 44998 52998

to 10000 19999 24999 29999 34999 39998 44998 52998 60998

6943

9183

10387

18318

20721

36637

41441

60998

68997

7748

10387

11592

20721

23123

41441

46246

68997

76997

7748

8553

11592

12796

23123

25526

46246

51051

76997

84997

8553

8653

12796

12946

25526

25826

51051

51652

84997

85997

4056

8653

8754

12946

13097

25826

26126

51652

52252

85997

86997

4056

4134

8754

8855

13097

13248

26126

26426

52252

52853

86997

87996

4134

4212

8855

8955

13248

13398

26426

26727

52853

53453

87996

88996

1326

4212

4290

8955

9056

13398

13549

26727

27027

53453

54054

88996

89996

1404

4290

4368

9056

9156

13549

13699

27027

27327

54054

54655

89996

90996

1404

1482

4368

4446

9156

9257

13699

13850

27327

27628

54655

55255

90996

91996

1482

1560

4446

4524

9257

9358

13850

14000

27628

27928

55255

55856

91996

92996

1560

1638

4524

4602

9358

9458

14000

14151

27928

28228

55856

56456

92996

93996

RA47052EN16AGLA0

© Nokia 2016

RA47052EN16AGLA0

12


Timing Advance Histogram PM-counter Bin mapping cont..... 2.1 km range

5 km range

10 km range

15 km range (def)

30 km range

60 km range

100 km range

Counter

from

to

from

to

from

to

from

to

from

to

from

to

from

to

M8029C22

1638

1716

4602

4680

9458

9559

14151

14301

28228

28529

56456

57057

93996

94996

M8029C23

1716

1794

4680

4758

9559

9660

14301

14452

28529

28829

57057

57658

94996

95996

M8029C24

1794

1872

4758

4836

9660

9760

14452

14602

28829

29129

57658

58258

95996

96996

M8029C25

1872

1950

4836

4914

9760

9861

14602

14753

29129

29429

58258

58859

96996

97996

M8029C26

1950

2028

4914

4992

9861

9961

14753

14903

29429

29730

58859

59459

97996

98996

M8029C27

2028

2106

4992

5070

9961

10062

14903

15054

29730

30030

59459

60060

98996

99996

M8029C28

2106

2184

5070

5226

10062

10565

15054

15807

30030

31532

60060

63063

99996

104996

M8029C29

2184

2262

5226

5616

10565

11068

15807

16559

31532

33033

63063

66066

104996

109996

M8029C30

2262

infinite

5616

infinite

11068

infinite

16559

infinite

33033

infinite

66066

infinite

109996

infinite

14

RA47052EN16AGLA0

© Nokia 2016

RA47052EN16AGLA0

13


UL Power and Quality Measurements • Interference to thermal noise measurements FDD only -

These measurements provide the 50 percentile value of the uplink Interference Power over Thermal (IoT) Noise Power for the PUSCH Resource Block (RB) with distribution bins 0-8.

-

M8005C317..C325: UL Interference over thermal noise for PUSCH To increase the granularity, the counter is reported in 10* dB units. Unit: 1.0E-1 dB

Bin 8

Bin 7

Bin6

Bin 5

Bin 4

Bin2

Bin3

Bin 1

Bin 0

dB

PRB Bandwidth

15

RA47052EN16AGLA0

© Nokia 2016

This measurements provide the 50 percentile value of the uplink Interference Power over Thermal (IoT) Noise Power for the PUSCH Resource Block (RB) distribution bin 0-8. To increase the granularity, the counter is reported in 10* dB units. To support the PUSCH RB distribution, there are 9 bins (bin0 to bin8). The PUSCH RBs would be evenly distributed (as much as possible) across the 9 bins with bin 0 and bin 8 having an equal number of PUSCH RBs.

RA47052EN16AGLA0

14


UL Power and Quality Measurements • Distribution of SIR for PRBs of PUSCH FDD only -

These measurements provide the number of in-use PUSCH Resource Blocks (PRB) having an average Signal to Interference Ratio (SIR) value X

-

M8005C326..C335: UL Distribution of SIR for PRBs of PUSCH bins 0 - 9

Bin9 25dB > SIR

Bin8 22dB > SIR 25dB

Bin7 19dB > SIR < 22dB

Bin6 16dB >SIR < 19dB

Bin5 13dB > SIR < 16dB

Bin4 10dB > SIR <13dB

Bin2 4dB >SIR <7dB

Bin3 7dB>SIR 10dB

Bin1 1dB> SIR <4dB

Bin0 SIR <1dB

samples

PRB Bandwidth

16

RA47052EN16AGLA0

© Nokia 2016

This measurement is updated by calculating the SIR for each of the in-use PUSCH PRBs every sample period and incrementing the corresponding bin having an average SIR value X

RA47052EN16AGLA0

15


DL SINR measurement FDD only Thes measurements are updated for each UE every TTI by using the UE's most recent subband CQI to calculate Subband X downlink SINR post-compensation and the bin is incremented every sample period (5 seconds) with the respective number of calculated values where each one is within a dB range.

M8031C0-19 for subband 1 M8031C20-39 for subband 2 M8031C40-59 for subband 3 M8031C60-79 for subband 4 M8031C80-99 for subband 5 M8031C100-119 for subband 6 M8031C120-139 for subband 7 M8031C140-159 for subband 8 M8031C160-179 for subband 9 M8031C180-199 for subband 10 M8031C200-219 for subband 11 M8031C220-239 for subband 12 M8031C240-259 for subband 13

17

RA47052EN16AGLA0

Bin19 28dB > SINR

…………

Bin18 26dB > SINR <28dB

Bin9 8dB > SINR < 10dB

Additional sets of counters; • M8031C260 to M8031C519 for subbands 1 to 13 for Subband 1 codeword 2 for two codewords Subband 2 • M8031C520 to M8031C539 for wideband SINR • M8031C540 to M8031C599 for wideband SINR for two …… codewords




Bin6 2dB >SINR < 4dB

Bin4 -2dB > SINR< 0dB

Bin3 -4dB> SINR -2dB

Bin2 -6dB > SINR < -4dB

Bin1 -8dB> SINR< -6dB

Bin0 -10dB SINR < -8dB

dB

Subband 13

© Nokia 2016

These measurements are updated for each UE every TTI by using the UE's most recent subband CQI to calculate Subband X downlink SINR post-compensation and the bin is incremented every sample period (5 seconds) with the respective number of calculated values where each one is within a dB range. PRB range of subband X according to frequency: 3 MHz and 5 MHz refers to PRB#0 to PRB#3 10 MHz refers to PRB#0 to PRB#5 15 MHz and 20 MHz refers to PRB#0 to PRB#7

RA47052EN16AGLA0

16


LTE1491 Additional Layer 1 performance measurements • Subbands mapping Subband

1 2 3 4 5 6 7 8 9 10 11 12 13

18

PRBs for 1.4 MHz

N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A

PRBs for 3 PRBs for 5 MHz MHz

0 to 3 4 to 7 8 to 11 12 to 14 N/A N/A N/A N/A N/A N/A N/A N/A N/A

RA47052EN16AGLA0

0 to 3 4 to 7 8 to 11 12 to 15 16 to 19 20 to 23 24 N/A N/A N/A N/A N/A N/A

PRBs for 10 MHz

0 to 5 6 to 11 12 to 17 18 to 23 24 to 29 30 to 35 36 to 41 42 to 47 48 to 49 N/A N/A N/A N/A

PRBs for 15 MHz

0 to 7 8 to 15 16 to 23 24 to 31 32 to 39 40 to 47 48 to 55 56 to 63 64 to 71 72 to 74 N/A N/A N/A

PRBs for 20 MHz

0 to 7 8 to 15 16 to 23 24 to 31 32 to 39 40 to 47 48 to 55 56 to 63 64 to 71 72 to 79 80 to 87 88 to 95 96 to 99

© Nokia 2016

RA47052EN16AGLA0

17


Index • Nokia counter-based KPIs

• Transport measurements in eNB

19

RA47052EN16AGLA0

© Nokia 2016

RA47052EN16AGLA0

18


Introduction – Why Transport KPI for RF Engineers •

Why does an RF Engineer need to know about transport?

•

To detect transport limitation of bandwidth through over subscription

•

To determine possible misconfiguration of network causing throughput limitations not caused by over subscription

20

RA47052EN16AGLA0

© Nokia 2016

RA47052EN16AGLA0

19


General Measurement Overview (FL16A) Transmission Measurements • • • • • • • • • • • • • • • • • • • • • • • •

IP Statistics (M51120) PHB Statistics (M51121) Ethernet Link (M51123) IP Sec (M51125) IP Filtering (M51126) VLAN IP Statistics (M51127) VLAN PHB Statistics (M51128) LTE VLAN Statistics (M51129) Ethernet Interface Statistics (M51130) LTE L2 Switch Statistics (M51131) LTE TWAMP Statistics (M51132) LTE TAC Statistics (51136) LTE TOP FreqSync Statistics (51137) LTE TOP PhaseSync Statistics (M51138) WIFI statistics (M51139) (FDD only) LTE_IPv6_Stats (M51140) LTE_IPV6_PHB_Stats (M51141) LTE_VLAN_IPv6_Stats (M51142) LTE_VLAN_IPv6_PHB_Stats (M51143) LTE_IPv4_Stats (M51144) LTE_IPv4_PHB_Stats (M51145) LTE_VLAN_IPv4_Stats (M51146) LTE_VLAN_IPv4_PHB_Stats (M51147) LTE IP Data Traffic Volume Statistics (M51148)

21

RA47052EN16AGLA0

© Nokia 2016

RA47052EN16AGLA0

20


Introduction

A

• To detect transport limitation of bandwidth through over subscription • Each link is a 100 Megabit Link. What are the implications to RF?

Residential

Integrated Switch and Router Router

Business District •

Entertainment District

22

RA47052EN16AGLA0

What is Over Subscription and why? • Predicting traffic flow and under dimensioning the link to use the bandwidth for other links • Less cost for transport

© Nokia 2016

RA47052EN16AGLA0

21


Introduction • Residential and Business Switch connection • The time frames for each of these zones offset their busy hour thus only at Rush hour there might be a limitation.

Residential

Integrated Switch and Router Router

Business District

Entertainment District 23

RA47052EN16AGLA0

© Nokia 2016

RA47052EN16AGLA0

22


Introduction

A

Another reason to know transport statistics is to determine possible misconfiguration of network causing throughput limitations not caused by over subscription

•

•

Example – Maximum Transmission Unit (MTU) Configuration incorrect at Switch Layer MTU Size Ideal Conditions with Max Throughput Data Size Padding

MTU Size

• 24

Segmented Packet

Segmeted Packet

Ethernet Frame

Ethernet Frame

TCP Windowing configuration can cause large number of TCP ACK/NACKs RA47052EN16AGLA0

© Nokia 2016

RA47052EN16AGLA0

23


LTE Transmission measurements • The Performance Package for Transport, provides detailed insight into the performance of the transport interface of the eNodeB on IP layer.

IP

Ethernet eNB

MME

IP Router SAE-GW

S1 / X2 U/C-plane

S1 U/C-plane IP/IPSec

IP/IPSec

25

(Transport) IP

Eth MAC

Eth MAC

Eth MAC

Eth MAC

Eth PHY

Eth PHY

Eth PHY

Eth PHY

RA47052EN16AGLA0

© Nokia 2016

RA47052EN16AGLA0

24


LTE IP Statistics (M51120/M51140/M51144 - M51127/M51142/M51146) •

Counter order (All IP Statistics/IP Version 6 IP Statistics/IP Version 4 Statistics)

•

LTE IP statistics measurement (M51120/M51140/M51144) contains PM counters to monitor the performance of IP layer of S1/X2 interface (both plain and VLAN based). With counters included in this measurement user is able to measure amount of:

•

-

incoming/outgoing octets/packets

-

incoming erroneous packets

-

outgoing packets/octets dropped due to congestion

•

LTE VLAN IP statistics measurement (M51127/M51142/M51146) contains PM counters to monitor the performance of VLAN interface

•

With counters included in this measurement user is able to measure amount of: -

incoming/outgoing octets/packets

-

incoming erroneous packets

-

outgoing packets/octets dropped due to congestion S1 / X2 U/C-plane

S1 / X2 U/C-plane

IP/IPSec

IP/IPSec

Eth MAC

S1/X2 Interface

Eth PHY

S1/X2 Interface

VLAN3 VLAN2

Eth MAC Eth PHY

VLAN1

26

RA47052EN16AGLA0

© Nokia 2016

RA47052EN16AGLA0

25


LTE Per Hop Behavior (PHB) Statistics (M51121/51141/51145-M51128/M51143/M51147) •

Counter order (All IP Statistics/IP Version 6 IP Statistics/IP Version 4 Statistics)

•

LTE PHB statistics measurement (M51121/51141/51145) contains PM counters to monitor the performance of IP layer of S1/X2 interface (both plain and VLAN based)

•

Granularity of this measurement allows user to measure amount of: -

incoming/outgoing data/packets transmitted

-

outgoing data/packets dropped due to congestion per each PHB (Per-Hop Behavior) class defined for DiffServ (Differentiated services)*

•

LTE VLAN PHB statistics measurement (M51128/M51143/M51147) contains PM counters to monitor the performance of IP layer of S1/X2 interface per VLAN interface

•

Granularity of this measurement allows user to measure amount of: -

incoming/outgoing data/packets transmitted

-

outgoing data/packets dropped due to congestion per each PHB (Per-Hop Behavior) class defined for DiffServ (Differentiated services)* S1 / X2 U/C-plane

S1 / X2 U/C-plane

IP/IPSec

S1/X2 EF Interface AF4 AF3

27

AF2 AF1

IP/IPSec

Eth MAC Eth PHY

S1/X2 Interface

VLAN

BE

RA47052EN16AGLA0

EF AF4 AF3

AF2 AF1

Eth MAC Eth PHY

BE

© Nokia 2016

RA47052EN16AGLA0

26


LTE Ethernet Statistics (M51123) •

LTE Ethernet statistics measurement (M51123) contains PM counters to monitor Ethernet link performance

•


incoming/outgoing packets/octets

-

incoming/outgoing packets/octets discarded due to rate shaping

-

incoming erroneous Ethernet frames

-

incoming Ethernet packets due to VLAN mismatch

-

outgoing Ethernet packets discarded due to egress shaping per queue per interface

-

ingress Ethernet 64-byte blocks discarded due to rate limiting

S1 / X2 U/C-plane

S1 / X2 U/C-plane

IP/IPSec

IP/IPSec

Eth MAC

S1/X 2 Interface

Eth PHY

S1/X2 Q1 Interface Q2 Q3

Q4 Q5

Eth MAC

Eth PHY

Q6

Valid for M51123C17 (ethIfOutDiscShaping_Q5) to M51123C22 (ethIfOutDiscShaping_Q6)

28

RA47052EN16AGLA0

© Nokia 2016

RA47052EN16AGLA0

27


LTE IP Sec (M51125) •

LTE IP Sec measurement (M51125) contains PM counters to monitor performance of IPSec protected traffic on S1/X2

•


incoming/outgoing protected frames

-

incoming/outgoing discarded frames

-

incoming/outgoing bypassed frames

S1 / X2 U/C-plane

U

IP/IPSec Eth MAC

C

S1/X2 Interface

VLAN IPSec (optional) tunnel

Eth PHY

M S

29

RA47052EN16AGLA0

© Nokia 2016

RA47052EN16AGLA0

28


Performance measurement counters LTE IP Filtering (M51126)

•

LTE IP filtering measurement (M51126) contains PM counters to monitor the firewall functionality of the BTS (LTE692 feature)

•

With counters included in this measurement user is able to measure amount of:

30

-

packets discarded due to filter violations

-

packets dropped due to ingress rate limiting

RA47052EN16AGLA0

May be an indication of Throughput issues due to incorrect filter rules

© Nokia 2016

RA47052EN16AGLA0

29


LTE Transport Load (M8004) “Side Haul Traffic” •

Transport Load measurement (M8004) measures GTP-U protocol procedures: -

X2 signaling volume (incoming/outgoing)

-

X2 user data volume (incoming/outgoing)

(E)-RRC

..

User PDUs

User PDUs

PDCP RLC MAC

•

Based on those counters KPI’s for data volumes and average throughput are composed (by division by measurement duration)

LTE-L1

(FDD/TDD-OFDMA/SC-FDMA)

LTE-Uu

X2-CP (Control Plane)

eNB

X2-UP (User Plane) User PDUs

X2-AP

GTP-U

SCTP

UDP

IP

IP

L1/L2

L1/L2

X2

eNB

31

RA47052EN16AGLA0

© Nokia 2016

RA47052EN16AGLA0

30


Transport Related Measurements

M51129 • • •

(VLAN Interface)

and M51130

(Ether. Interface)

: Interface Statistics

Monitors the performance of each Interface. Object: IVIF and IEIF. Include counters for: • Number of received packets and octets. •

Number of transmitted packets and octets.

Helps to detect throughput on the Transport side. Compare with PDCP Throughput data to note possible air interface drops (DL) and network interface drops (UL) May also be used to help indicate TCP windowing and MTU Frame issues

32

RA47052EN16AGLA0

© Nokia 2016

RA47052EN16AGLA0

31



TCP/UDP Layer Access Control

M51136: Transport Admission Control • • •

Monitors Transmission Admission Control performance. Object: TAC. Include counters for: • Number of successful and rejected connection requests per type of request (Normal, Emergency and handover).

M51132: TWAMP Statistics • • •

Timing over Packet IEEE 1588 measurement statistics

Measurements related to the LTE574: IP Network Measurements feature. It measures the Round Trip Time (RTT) and Packet Loss Ratio (PLR) Object: TWAMP. Include counters for: • M51132C0 / M51132C1 / M51132C2: Average, Max and Min RTT. • •

M51132C3: Number of lost TWAMP messages. M51132C4: Number of transmitted TWAMP messages

Note: Timing over Packet is critical for the synchronisation of sites to a common timing source when GPS is not available such as in Metropolitan Train systems.

33

RA47052EN16AGLA0

© Nokia 2016

RA47052EN16AGLA0

32



Timing over Packet IEEE 1588v2 measurement statistics

M51137: TOP FreqSync Statistics • • •

Monitors ToP FreqSync performance. Object: TOPF. Include counters for: • •

Problems in these statistics may be seen in Handover and Interference problems when the sites are synchronized to the same timing source

Number of received synch. Messages Min, Max and Ave synch. Error (in micro seconds)

M51138: TOP PhaseSync Statistics • • •

Monitors ToP PhaseSync performance. Object: TOPP. Include counters for: • Number of received synch. Messages •

Min, Max and Ave estimated phase error

Note: Timing over Packet is critical for the synchronisation of sites to a common timing source when GPS is not available such as in Metropolitan Train systems.

34

RA47052EN16AGLA0

© Nokia 2016

RA47052EN16AGLA0

33


NokiaEDU

RA47052EN16AGLA0

© Nokia 2016

RA47052EN16AGLA0

34

02_RA47052EN16AGLA0_KPI_overview.pdf

Recommend Documents