07 RA4133 RL20 LTE Mobility Connected Mode E01

(1)

LTE Radio Performance Management

Introduction

[RL

[RL20

20]] RA

RA41

4133

33-20

-20A

A

Mobility measurements in connected mode

Module 7

(2)

Course Objectives

Mobility measurements in

Connected Mode

After completing this learning element,

the participant should be able to:

•

• Differentiate HO types and events in LTE from HO inDifferentiate HO types and events in LTE from HO in

WCDMA WCDMA

•

• Describe the intra and inter eNodeB Handover phases andDescribe the intra and inter eNodeB Handover phases and

related KPI's related KPI's

•

• Explain inter-frequency / inter-RAT redirectionExplain inter-frequency / inter-RAT redirection •

• Describes HO via X2 interfaceDescribes HO via X2 interface •

(3)

Course Objectives

Mobility measurements in

Connected Mode

After completing this learning element,

the participant should be able to:

•

• Differentiate HO types and events in LTE from HO inDifferentiate HO types and events in LTE from HO in

WCDMA WCDMA

•

• Describe the intra and inter eNodeB Handover phases andDescribe the intra and inter eNodeB Handover phases and

related KPI's related KPI's

•

• Explain inter-frequency / inter-RAT redirectionExplain inter-frequency / inter-RAT redirection •

• Describes HO via X2 interfaceDescribes HO via X2 interface •

(4)

LTE Handover Architecture

Mobility Measurements in Connected Mode

(5)

Handover Types WCDMA

•

Intra-RAT Handover

--

Intra-frequencyIntra-frequency

-- Intra Node B: softer HO for R99 / HSUPA, hard HO (serving cell change) for HSDPAIntra Node B: softer HO for R99 / HSUPA, hard HO (serving cell change) for HSDPA

-- Inter Node B: soft HO for R99 / HSUPA, hard HO (serving cell change) for HSDPAInter Node B: soft HO for R99 / HSUPA, hard HO (serving cell change) for HSDPA

--

Inter-frequency: hard HO in any caseInter-frequency: hard HO in any case

•

Inter-RAT Handover:

hard HO either to PS or CS

hard HO either to PS or CS domain in any case to

domain in any case to

--

GSMGSM

--

WLANWLAN

(6)

Handover Types LTE

•

Hard HO in any case,

Hard HO in any case, no SHO

no SHO

•

Intra-RAT Handover

–

– Intra eNodeBIntra eNodeB

–

– Inter eNodeBInter eNodeB



 Data forData forwardwardingingoveover X2r X2 •

• High performance for 15…120 km/hHigh performance for 15…120 km/h

•

• Optimized performance for 0…15 km/hOptimized performance for 0…15 km/h



 If no X2 interface configured between serving and target eNodeB, than HO via S1If no X2 interface configured between serving and target eNodeB, than HO via S1

interface (will be available with

interface (will be available with RL20RL20))

•

Inter-RAT Handover

--

Only to PS domainOnly to PS domain

--

HO to WCDMA will be available withHO to WCDMA will be available with RL20RL20

(7)

Handover Types LTE

E-UTRAN micro cells

Intra-frequency HO (intra eNB)

intra-frequency HO (inter eNB, inter MME)

Inter frequency HO

other RAT

E-UTRAN macro cell

intersystem HO triggered by e.g. - coverage of E-UMTS - service - load intersystem HO

(8)

Handover Procedure

-> Lossless

–

Packets are forwarded from the source to the target

-> Network-controlled

–

Target cell is selected by the network, not by the UE

–

Handover control in E-UTRAN (not in packet core)

-> UE-assisted

–

Measurements are made and reported by the UE to the network

-> Late path switch

(9)

Handover Procedure

= GTP signalling S-GW + P-GW MME Source eNB Target eNB

MME MME MME

= Data in radio = Signalling in radio = GTP tunnel = S1 signalling = X2 signalling Before handover Handover

preparation Radio handover

Late path switching S-GW + P-GW S-GW + P-GW S-GW + P-GW X2

(10)

Handover Algorithm

•

A Handover will be initiated by a measurement report sent via the RRC protocol

•

Upon the reception of this measurement report, the handover algorithm will

decide whether a handover should take place

•

In response to the handover decision, the handover execution will be carried out

using the corresponding procedures

•

After the handover execution, the handover algorithm will be informed, whether

the handover was successful or not

•

The Handover procedure is composed of a number of single functions:

-

Measurements

-

Filtering of measurements

-

Reporting of measurement results

-

Hard handover algorithm

(11)

(12)

Handover Events WCDMA

•

Soft(er) Handover

-

1A: A non active cell enters the reporting range, the network tries to add it to the active set

-

1B: An active cell leaves the reporting range, the network tries to drop it from the active set

-

1C: An active cell becomes worse than a non active one, the network tries to replace the active cell by the non active one

•

Hard Handover (NSN implementation)

-

1F: All active cells become worse than an absolute threshold (either RSCP or Ec/Io)

-

6A: The UE transmits with too high power

-

The radio link needs too much power on DL

-

The SIR_target on UL is at maximum

-

The serving cell has too high load

-

Another carrier or system matches better the user service than the serving one

(13)

Handover Events LTE

•

Intra-RAT Handover (NSN implementation)

-

Currently based on RSRP only, but not on RSRQ

-

Events for intra-frequency HO

- A3: A LTE neighbor becomes better than the server according a relative offset

- A5: The server becomes worse than an absolute threshold and a LTE neighbor

better than another absolute threshold

-

Events for inter-frequency mobility

- A2: The serving cell becomes worse than an absolute threshold (triggers redirection, not real handover)

- Event based inter-frequency handover will be available

•

Inter-RAT Mobility

• Event based inter-RAT handover

• Analog to the inter-frequency case redirection towards WCDMA or

(14)

Event A3

start event A3 reporting RSRP time server neighbor a3Offset LNCEL, -30..30 dB, 0 dB a3TimeToTrigger LNCEL, 0..5120 ms (irregular steps), 0 ms a3ReportInterval

LNCEL, 120 ms..60 min (irregular steps), 1024 ms

a3ReportAmount

LNCEL, 1/2/4/8/16/32/64 repetitions or infinite, infinite

(15)

Event A5

start event A5 reporting RSRP time server neighbor a5Threshold1 LNCEL, -140..-43 dBm, -140 dBm a5TimeToTrigger LNCEL, 0..5120 ms (irregular steps), 0 ms a5ReportInterval

LNCEL, 120 ms..60 min (irregular steps), 1024 ms a5ReportAmount LNCEL, 1/2/4/8/16/32/64 repetitions or infinite, infinite HO execution a5Threshold2 LNCEL, -140..-43 dBm, -140 dBm

(16)

Intra eNodeB Handover

(17)

Intra eNodeB Handover (Positive)

UE SourceeNB Target eNB MME SGW

UL/DL Data (s ource cell)

R R C Meas urement R eports

Handover decision

Admission control and resources allocation on target cell

Handover decision

M8009C1 Total handover decisions Handover preparation

M8009C2 Attempted intra eNodeB handover preparations

R R C C onnection R econfig uration R R C Meas urement Control

L2 UL A llocation

L2 D L A llocation

L2 S ynchronization

L2 UL A llocation + timing advance

R R C C onnection R econfig uration C omplete Release source resources

Handover execution

M8009C6 Attempted intra eNodeB handovers

Handover completion

M8009C7 Successful intra eNodeB handovers

M8009 Intra eNodeB Handover Measurements On level of source cell

T i m e r T H O o v e r a l l ( h a r d c o d e d )

(18)

Intra eNodeB Handover (Negative)

Handover decision R R C Meas urement Control

L2 UL A llocation

M8009C0

Total not started HO preparations E.g. conditions for A3 or A5 not fulfilled

(19)

Intra eNodeB Handover (Negative)

Handover decision

Admission control and resources allocation on target cell R R C Meas urement Control

L2 UL A llocation

M8009C3

Failed intra eNodeB HO preparations due to admission control

M8009C5

Failed intra eNodeB HO preparations due to other reason

(20)

Intra eNodeB Handover (Negative)

Handover decision

R R C C onnection R econfig uration R R C Meas urement Control

L2 UL A llocation

L2 D L A llocation

L2 S ynchronization mis s ing

R R C Connection Reconfig uration Error or miss ing

M8009C8

Total intra eNodeB HO failures due to timer

(21)

Intra eNodeB Handover per Neighbor

•

Counters of group M8009 give information per source cell only

•

Counters of group M8015 give information per neighbor

• M8015C0: Failed intra eNodeB HO preparations

• M8015C1: Intra eNodeB HO attempts

• M8015C2: Intra eNodeB HO successes

(22)

M8009C1 M8009C6 M8009C3/C5

Intra eNodeB Handover Counter Summary

M8009C0 Positive/negative HO decision Successful/failed HO preparation M8009C7 M8009C8 Successful/failed HO execution M8009C2 HO preparation attempt

(23)

Intra HO prep SR = (number of successful intra eNB HO prep) / (total number of intra eNB HO preparations) * 100%

= (number of intra eNB HO attempts) /

(total number of intra eNB HO preparations) * 100%

100 * sum ([M8009C6]) / sum([M8009C2])

100 * sum ([ATT_INTRA_ENB_HO]) / sum ([INTRA_ENB_HO_PREP])

E-UTRAN HO Preparation Success Ratio (intra eNodeB)

Describes the success ratio for the handover preparation phase

The source eNodeB attempts to prepare resources and finally attempts to start the handover to a neighboring cell w ithin the own eNodeB

Logical formula

Summarization

formula (PI ID) Summarization formula (Abbreviation)

(24)

Intra HO SR = (number of successful intra eNB HOs) /

(number of intra eNB HO attempts) * 100%

100 * sum ([M8009C7]) / sum([M8009C6])

100 * sum ([SUCC_INTRA_ENB_HO]) / sum ([ATT_INTRA_ENB_HO])

E-UTRAN HO Success Ratio (intra eNodeB)

Describes the success ratio for the handover execution phase

The source eNodeB receives information that the UE successfully is connected to the target cell within own eNodeB

Logical formula

Summarization formula (PI ID)

Summarization formula (Abbreviation)

(25)

Intra HO FR = (number of unsuccessful intra eNB HOs) /

(number of intra eNB HO attempts) * 100%

100 * sum ([M8009C8]) / sum([M8009C6])

100 * sum ([ENB_INTRA_HO_FAIL]) / sum ([ATT_INTRA_ENB_HO])

E-UTRAN HO Failure Ratio (intra eNodeB)

Describes the ratio of failed intra eNodeB handovers related to all attempted intra eNodeB handovers

Represents the case of a failed handover when all UE resources are still allocated for the UE

Logical formula

(26)

Intra tot HO SR =

(intra eNB HO prep successes) / (intra eNB HO preparations) *

(intra eNB HO successes) / (intra eNB HO attempts) * 100%

=

(intra eNB HO attempts) / (intra eNB HO preparations) *

(intra eNB HO successes) / (intra eNB HO attempts) * 100%

=

(intra eNB HO successes) / (intra eNB HO preparations) * 100%

100 * sum ([M8009C7]) / sum ([M8009C2])

100 * sum ([SUCC_INTRA_ENB_HO]) / sum ([INTRA_ENB_HO_PREP])

E-UTRAN Total HO Success Ratio (intra eNodeB)

Describes the total intra eNB HO Success Ratio from HO preparation start until successful HO execution

Logical formula

(27)

Intra eNodeB Handover KPIs

0 100 200 300 400 500 600 700 800 900 1,000 80.00 85.00 90.00 95.00 100.00 2 3 . 0 5 . 2 0 1 1 2 5 . 0 5 . 2 0 1 1 2 7 . 0 5 . 2 0 1 1 2 9 . 0 5 . 2 0 1 1 3 1 . 0 5 . 2 0 1 1 0 2 . 0 6 . 2 0 1 1 0 4 . 0 6 . 2 0 1 1 0 6 . 0 6 . 2 0 1 1 0 9 . 0 6 . 2 0 1 1 1 1 . 0 6 . 2 0 1 1 1 3 . 0 6 . 2 0 1 1 1 5 . 0 6 . 2 0 1 1 1 7 . 0 6 . 2 0 1 1 1 9 . 0 6 . 2 0 1 1 2 1 . 0 6 . 2 0 1 1

LTE_5123a Intra eNB Handover Preparations (#) LTE_5124a Intra eNB Handover Attempts (#) LTE_5036a intra eNB Handover Prep Success Ratio (%) LTE_5035a intra eNB Handover Success Ratio (%)

(28)

Inter eNodeB Handover via X2 interface

Inter eNodeB Handover via S1 interface

(29)

Inter eNodeB Handover via X2 interface

(30)

• Basic mobility feature

• Triggered by same configurable events

as intra eNodeB handover

• Coverage based (event A5)

• Best cell based (event A3)

• Network evaluated handover decision

• Data forwarding via X2

• Radio Admission Control (RAC) gives

priority to handover related access over other scenarios S1 S1 _X2 MME S-GW P-GW

Principle

(31)

Inter eNodeB Handover (Positive, Preparation)

Handover decision

Handover preparation

M8014C0 Attempted Inter eNodeB handover preparations

R R C Meas urement Control

L2 UL A llocation

M8014 Inter eNodeB Handover Measurements On level of source cell

Timer TX2RELOCprep (hardcoded)

S uperv is es preparation phase

X2A P Handover R eques t

(32)

Inter eNodeB Handover (Positive, Execution)

R R C C onnection Reconfiguration L2 D L A llocation

L2 S ynchronization

L2 UL A llocation + timing advance

R R C C onnection R econfig uration C omplete

Handover execution

M80014C6 Attempted inter eNodeB handovers

X2A P Handover R eques t A ck nowledg e

X2A P S tatus Trans fer Data forwarding

Timer TX2RE LOC exec (hardcoded)

S upervis es execution phase

Timer TX2R E LOC Overall (hardcoded)

S uperv is es execution and completion phas e

(33)

Inter eNodeB Handover (Positive, Completion)

R R C Connection R econfiguration Complete

R R C C onnection Reconfiguration (Meas . Reconfig .)

Path S witch Reques t

Us er P lane Update Request R R C Connection R econfig uration C omplete

E nd Marker Packet Data

Us er Plane Update R espons e Path S witch R eques t Ack nowledg e

X2A P UE Context R eleas e Release source resources

(targ et cell)

Handover completion

M80014C7 Successful inter eNodeB handovers

(34)

Inter eNodeB Handover (Negative)

Handover decision

Admission control and resources allocation on target cell R R C Meas urement Control

L2 UL A llocation

X2A P Handover R eques t

X2A P Handover P reparation Failure or no res pons e

• M8014C2: Failed inter eNodeB HO preparations

• due to timer: eg TX2RELOCprep

• due to target eNodeB admission control

(35)

Inter eNodeB Handover (Negative)

R R C Connection R econfiguration Complete

R R C C onnection Reconfiguration (Meas . Reconfig .)

Path S witch Reques t

Us er P lane Update Request R R C Connection R econfig uration C omplete

E nd Marker Packet Data

E rror or no res ponse E rror or no res ponse

M80014C8

Total inter eNodeB HO failures due to timer

(36)

Inter eNodeB Handover per Neighbor

•

Counters of group M8014 give information per source cell only

•

Counters of group M8015 give information per neighbor

• M8015C6: Failed inter eNodeB HO preparations due to timer

• M8015C7: Failed inter eNodeB HO preparations due to admission control

• M8015C8: Inter eNodeB HO attempts

• M8015C9: Inter eNodeB HO successes

(37)

M80014C1 M8014C6 M8014C2/C3/C5

Inter eNodeB Handover Counter Summary

HO decision Successful/failed HO preparation M8014C7 M8014C8 Successful/failed HO execution M8014C0 HO preparation attempt

(38)

Inter X2 based HO prep SR = (number of successful inter eNB X2 based HO prep) /

(total number of inter eNB X2 based HO preparations) * 100%

= (number of inter eNB X2 based HO attempts) /

(total number of inter eNB X2 based HO preparations) * 100%

100 * sum ([M8014C6]) / sum([M8014C0])

100 * sum ([ATT_INTER_ENB_HO]) / sum ([INTER_ENB_HO_PREP])

Logical formula

Inter eNodeB Handover KPIs

E-UTRAN HO Preparation Success Ratio (inter eNodeB X2 based) Describes the success ratio for the handover preparation phase

The source eNodeB attempts to prepare resources and finally attempts to start the handover to a neighboring cell in a target eNodeB

(39)

Inter X2 based HO SR = (number of successful inter eNB X2 based HOs) / (number of inter eNB X2 based HO attempts) * 100% 100 * sum ([M8014C7]) / sum([M8014C6]) 100 * sum ([SUCC_INTER_ENB_HO]) / sum ([ATT_INTER_ENB_HO]) Logical formula Summarization formula (PI ID)

Inter eNodeB Handover KPIs

E-UTRAN HO Success Ratio (inter eNodeB X2 based)

Describes the success ratio for the handover execution phase

The source eNodeB receives information that the UE successfully is connected to the target cell within target eNodeB

(40)

Inter X2 based HO FR = (number of unsuccessful inter eNB X2 based HOs) /

(number of inter eNB X2 based HO attempts) * 100%

100 * sum ([M8014C8]) / sum([M8014C6])

100 * sum ([INTER_ENB_HO_FAIL]) / sum ([ATT_INTER_ENB_HO])

Logical formula

Inter eNodeB Handover KPIs

E-UTRAN HO Failure Ratio (inter eNodeB X2 based)

Describes the ratio of failed inter eNodeB X2 based handovers related to all attempted inter eNodeB handovers

Represents the case of a failed handover when all UE resources are still allocated for the UE

(41)

Inter tot X2 based HO SR =

(inter eNB X2 based HO prep successes) / (inter eNB X2 based HO preparations) * (inter eNB X2 based HO successes) / (inter eNB X2 based HO attempts) * 100% =

(inter eNB X2 based HO attempts) / (inter eNB X2 based HO preparations) *

(inter eNB X2 based HO successes) / (inter eNB X2 based HO attempts) * 100% =

(inter eNB X2 based HO successes) / (inter eNB X2 based HO preparations) * 100% 100 * sum ([M8014C7]) / sum ([M8014C0]) 100 * sum([SUCC_INTER_ENB_HO]) / sum ([INTER_ENB_HO_PREP]) Logical formula Summarization formula (PI ID)

Inter eNodeB Handover KPIs

E-UTRAN Total HO Success Ratio (inter eNodeB X2 based)

Describes the total inter eNB X2 based HO Success Ratio from HO preparation start until successful HO execution

(42)

Inter eNodeB Handover KPIs

0 2,000 4,000 6,000 8,000 10,000 12,000 80.00 85.00 90.00 95.00 100.00 2 3 . 0 5 . 2 0 1 1 2 5 . 0 5 . 2 0 1 1 2 7 . 0 5 . 2 0 1 1 2 9 . 0 5 . 2 0 1 1 3 1 . 0 5 . 2 0 1 1 0 2 . 0 6 . 2 0 1 1 0 4 . 0 6 . 2 0 1 1 0 6 . 0 6 . 2 0 1 1 0 9 . 0 6 . 2 0 1 1 1 1 . 0 6 . 2 0 1 1 1 3 . 0 6 . 2 0 1 1 1 5 . 0 6 . 2 0 1 1 1 7 . 0 6 . 2 0 1 1 1 9 . 0 6 . 2 0 1 1 2 1 . 0 6 . 2 0 1 1

LTE_5126a Inter eNB Handover Preparations (#) LTE_5125a Inter eNB Handover Attempts (#) LTE_5049a inter eNB Handover Prep Success Ratio (%) LTE_5048a inter eNB Handover Success Ratio (%)

(43)

Inter eNodeB Handover via S1 interface

(44)

•S1 based handover is only applicable for inter-eNB handover

•LTE inter-eNB handover can be executed without X2 interface usage in

following scenarios:

- No X2 connectivity existing between Source and Target eNB (or blacklisted by operator) - MME or S-GW change required when routing via Core Network

•User data traffic and signaling messages are indirectly send via core nodes

(MME and S-GW)

•For UE there is no difference whether HO is executed via X2 or S1 interface •Feature has an impact on dimensioning and is taken into account in

ANTdim tool

S hort Functional Des cription

(45)

K ey phas es of handover procedure

LTE 54 Intra LTE Inter eNB Handover via S 1 Interface 1/2

P r e p a r a t i o n E x e c u t i o n •

Key phases:

Logically the message content is created at target eNB and conveyed to Source eNB through MME

(46)

•

Key phases:

K ey phas es of handover procedure

LTE 54 Intra LTE Inter eNB Handover via S 1 Interface 2/2

c o m p l e t i o n

(47)

K ey phas es of handover procedure

LTE 54 Intra LTE Inter eNB Handover via S 1 Interface 1/2

Key phases:

M8014C14: INTER_ENB_S1_HO_PREP

• M8014C15: Failed inter eNodeB S1 HO preparations

• due to timer: egTS1RELOCprep

• M8014C16: Failed inter eNodeB S1 HO preparations

• due to target eNodeB admission control

• M8014C17: Failed inter eNodeB S1 HO preparations • due to other reason

(48)

K ey phas es of handover procedure

LTE 54 Intra LTE Inter eNB Handover via S 1 Interface

Key phases:

M8014C18: INTER_ENB_S1_HO_ATT

• M8014C15: Failed inter eNodeB S1 due to timer: eg TS1RELOCoverall

(49)

•

Key phases:

K ey phas es of handover procedure

LTE 54 Intra LTE Inter eNB Handover via S 1 Interface 2/2

c o m p l e t i o n M8014C19: INTER_ENB_S1_HO_SUCC

(50)

Inter-Frequency and Inter-System Mobility

Mobility Measurements in Connected Mode

(51)

Event A2 Based Redirection

RSRP time server threshold4 LNCEL, -140..-43 dBm a2TimeToTriggerRedirect LNCEL, 0..5120 ms (irregular steps)

• RL10 does not support inter-frequency / inter-RAT HO, but just redirection

based on event A2

• Redirection is triggered, if the coverage of the server is below threshold4 for

at least the time given by a2TimeToTriggerRedirect

• Event A2 may be triggered, if e.g. the coverage goes dow n because no target

(52)

Event A2 Based Redirection

• Must be enabled with actRedirect (LNBTS, off/on, on)

• The number of potential target layers is set with redrtId (REDRT, 1..2)

• The type of target layer is set with redirRAT (REDRT, LTE/WCDMA/(E)GPRS),

i.e. redirection is possible towards

• WCDMA

• GPRS/EDGE

• Another LTE carrier

• Further parameters are used to specify e.g. the (U)ARFCNs of the target layers

• RL10 does not offer detailed counters to monitor redirection

• The number of EPS bearer releases due to redirection is given by the counter

(53)

X2 Interface Measurements

(54)

X2 Interface

• Inter eNodeB interface

• X2AP special signalling protocol • Functionalities

– Facilitate inter eNodeB handover and provide

data forwarding for it

– Provide e.g. load information to neighbouring

eNBs to facilitate radio resource and interference management

• Logical interface

– Does not need direct site-to-site connection – Can be routed e.g. via core network as well

(E)-RRC User PDUs User PDUs

PDCP .. RLC MAC LTE-L1(FDD/TDD-OFDMA/SC-FDMA) TS 36.300 eNB LTE-Uu eNB X2 User PDUs GTP-U UDP IP L1/L2 TS 36.424 X2-UP (User Plane) X2-CP (Control Plane) X2-AP SCTP IP L1/L2 TS 36.421 TS 36.422 TS 36.423 TS 36.421 TS 36.420

(55)

X2 Throughput Counters and KPIs

AVG IN X2 SIG THP =

(incoming X2AP signaling volume) * 8 / (MEASUREMENT_DURATION * 60) Sum ([M8004C0]) * 8 / (sum (MEASUREMENT_DU RATION) * 60) Sum ([VOLUME_X2_IN_SIG_DATA]) * 8 / (sum (MEASUREMENT_DURATION) * 60) E-UTRAN average incoming Signaling Throughput on X2

Shows the average incoming signaling throughput on X2AP layer per eNB Unit is Kbit/s

Logical formula

M8004C0

Incoming signaling data volume in KByte

(56)

AVG OUT X2 SIG THP =

(outgoing X2AP signaling volume) * 8 / (MEASUREMENT_DURATION * 60) Sum ([M8004C1]) * 8 / (sum (MEASUREMENT_DU RATION) * 60) Sum ([VOLUME_X2_OUT_SIG_DATA]) * 8 / (sum (MEASUREMENT_DURATION) * 60) Logical formula Summarization formula (PI ID)

X2 Throughput Counters and KPIs

E-UTRAN average outgoing Signaling Throughput on X2

Shows the average outgoing signaling throughput on X2AP layer per eNB Unit is Kbit/s

M8004C1

(57)

E-UTRAN average incoming Data Throughput on X2

Shows the average incoming user plane data throughput on X2AP layer per eNB Unit is Kbit/s

AVG X2 DAT THP IN =

(incoming X2AP user plane data volume) * 8 / 1000 / (MEASUREMENT_DURATION * 60) Sum ([M8004C2]) * 8 / 1000 / (sum (MEASUREMENT_DU RATION) * 60) Sum ([X2_DATA_VOL_IN_UPLANE]) * 8 / 1000 / (sum (MEASUREMENT_DURATION) * 60) Logical formula Summarization formula (PI ID)

X2 Throughput Counters and KPIs

M8004C2

(58)

AVG X2 DAT THP OUT=

(outgoing X2AP user plane data volume) * 8 / 1000 / (MEASUREMENT_DURATION * 60) Sum ([M8004C3]) * 8 / 1000 / (sum (MEASUREMENT_DU RATION) * 60) Sum ([X2_DATA_VOL_OUT_UPLANE]) * 8 / 1000 / (sum (MEASUREMENT_DURATION) * 60) Logical formula Summarization formula (PI ID)

X2 Throughput Counters and KPIs

E-UTRAN average outgoing Data Throughput on X2

Shows the average outgoing user plane data throughput on X2AP layer per eNB Unit is Kbit/s

M8004C3