Eran6.0 Kpi Reference 05(PDF)-En

eRAN6.0

KPI Reference

Issue 05

Date 2014-05-30

HUAWEI TECHNOLOGIES CO., LTD.

05 (2014-05-30) Huawei Proprietary and Confidential

Copyright © Huawei Technologies Co., Ltd.

i

Copyright © Huawei Technologies Co., Ltd. 2014. All rights reserved.

No part of this document may be reproduced or transmitted in any form or by any means without prior

written consent of Huawei Technologies Co., Ltd.

Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.

All other trademarks and trade names mentioned in this document are the property of their respective

holders.

Notice

The purchased products, services and features are stipulated by the contract made between Huawei and

the customer. All or part of the products, services and features described in this document may not be

within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements,

information, and recommendations in this document are provided "AS IS" without warranties, guarantees or

representations of any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in the

preparation of this document to ensure accuracy of the contents, but all statements, information, and

recommendations in this document do not constitute a warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.

Address: Huawei Industrial Base

Bantian, Longgang

Shenzhen 518129

People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

http://www.huawei.com/

mailto:[email protected]

eRAN6.0 KPI Reference About This Document



ii

About This Document

Purpose

Due to the rapid expansion of multimedia applications, the downlink peak data rate now

exceeds 100 Mbit/s. The Long Term Evolution (LTE) standard was developed to meet this

increasing demand. A set of KPIs has been defined to evaluate this new system's performance,

especially those of the evolved Radio Access Network (eRAN).

Product Versions

The following table lists the product version related to this document.

Product Name Solution Version Product Version

DBS3900 SRAN8.0

eRAN6.0

V100R008C00

BTS3900

BTS3900A

BTS3900L

BTS3900AL

BTS3202E

BTS3203E LTE eRAN6.0 V100R006C00

Intended Audience

This document is intended for:

Network planners

Network administrators

Network operators




iii

Change History

This section provides information about the changes in different document versions.

There are two types of changes, which are defined as follows:

Technical change: refers to a change in the key performance indicator (KPI) definition of

a specific product version.

Editorial change: refers to a change in wording or the addition of information that was

not described in the earlier version.

The following describes the changes in eRAN6.0 KPI Reference.

The document versions are as follows:

05 (2014-05-30)

04 (2013-11-08)

03 (2013-06-26)

02 (2013-05-30)

01 (2013-04-28)

Draft A (2013-02-08)

05 (2014-05-30)

This is the fifth commercial release.

Compared with Issue 04 (2013-11-08), Issue 05 (2014-05-30) includes the following changes.

Change Type Changed Part Change Description

Addition Chapter 4 "Mobility

KPIs"

Chapter 9 "Counter

List"

Added CSFB-related KPIs and the

mapping between the KPIs and

associated counters.

04 (2013-11-08)

This is the fourth commercial release.



Modification Chapter 9

"Counter List"

Modified the mapping between the Cell Downlink

Average Throughput KPI and counters and the

mapping between the Cell Uplink Average

Throughput KPI and counters.




iv

03 (2013-06-26)

This is the third commercial release.



Modification Chapter 9

"Counter List"

Put this chapter in front of chapter 10 "References."

Deletion KPI template Deleted the chapter of KPI template.

02 (2013-05-30)

This is the second commercial release.


Change Type Change Description Parameter Change

Technical change None None

Editorial change Added the Inter-RAT Handover Out

Success Rate (LTE to TD-SCDMA)

KPI. For details, see section 4.7

"Inter-RAT Handover Out Success Rate

(LTE to TD-SCDMA)".

None

01 (2013-04-28)

This is the first commercial release.

Compared with Draft A (2013-02-08), this issue modified the mapping between the Cell

Downlink Average Throughput KPI/Cell Uplink Average Throughput KPI and counters.

Draft A (2013-02-08)

This is a draft.

Compared with Issue 01 (2011-12-18) of V100R005C00, Draft A (2013-02-08) of

V100R006C00 includes the following changes.




v

Change Type Change Description Parameter Change

Technical change Modified the mapping between the

RRC Setup Success Rate (Service)

KPI and counters according to the

modification of RRC establishment

cause values described in 3GPP

specifications.

Modified the definition of the Call

Setup Success Rate KPI.

Added the definition of the Service

Drop Rate (Always Online) KPI.

Modified the mapping between the

Cell Downlink Average Throughput

KPI and counters and the mapping

between the Cell Uplink Average

Throughput KPI and counters.


Resource Block Utilizing Rate KPI

and counters.


Average CPU Load KPI and

counters.

None

Editorial change Modified some description. None

eRAN6.0 KPI Reference Contents



vi

Contents

About This Document .................................................................................................................... ii

1 Overview ......................................................................................................................................... 1

2 Accessibility KPIs ......................................................................................................................... 2

2.1 RRC Setup Success Rate (Service) .................................................................................................................. 2

2.1.1 Description .............................................................................................................................................. 2

2.1.2 Definition ................................................................................................................................................ 3

2.2 RRC Setup Success Rate (Signaling) ............................................................................................................... 3

2.2.1 Description .............................................................................................................................................. 3

2.2.2 Definition ................................................................................................................................................ 4

2.3 E-RAB Setup Success Rate (VoIP) .................................................................................................................. 4

2.3.1 Description .............................................................................................................................................. 4

2.3.2 Definition ................................................................................................................................................ 6

2.4 E-RAB Setup Success Rate (All) ..................................................................................................................... 6

2.4.1 Description .............................................................................................................................................. 6

2.4.2 Definition ................................................................................................................................................ 6

2.5 Call Setup Success Rate ................................................................................................................................... 7

2.5.1 Description .............................................................................................................................................. 7

2.5.2 Definition ................................................................................................................................................ 7

3 Retainability KPIs ......................................................................................................................... 8

3.1 Call Drop Rate (VoIP) ...................................................................................................................................... 8

3.1.1 Description .............................................................................................................................................. 8

3.1.2 Definition ................................................................................................................................................ 9

3.2 Service Drop Rate (All) .................................................................................................................................... 9

3.2.1 Description .............................................................................................................................................. 9

3.2.2 Definition ................................................................................................................................................ 9

3.3 Service Drop Rate (Always Online) ............................................................................................................... 10

3.3.1 Description ............................................................................................................................................ 10

4 Mobility KPIs............................................................................................................................... 11

4.1 Intra-Frequency Handover Out Success Rate ................................................................................................. 11

4.1.1 Description ............................................................................................................................................ 11

4.1.2 Definition .............................................................................................................................................. 14




vii

4.2 Inter-Frequency Handover Out Success Rate ................................................................................................. 14

4.2.1 Description ............................................................................................................................................ 14

4.2.2 Definition .............................................................................................................................................. 14

4.3 Handover In Success Rate .............................................................................................................................. 15

4.3.1 Description ............................................................................................................................................ 15

4.3.2 Definition .............................................................................................................................................. 17

4.4 Inter-RAT Handover Out Success Rate (LTE to CDMA2000) ....................................................................... 17

4.4.1 Description ............................................................................................................................................ 17

4.4.2 Definition .............................................................................................................................................. 18

4.5 Inter-RAT Handover Out Success Rate (LTE to WCDMA) ........................................................................... 19

4.5.1 Description ............................................................................................................................................ 19

4.5.2 Definition .............................................................................................................................................. 19

4.6 Inter-RAT Handover Out Success Rate (LTE to GSM) .................................................................................. 20

4.6.1 Description ............................................................................................................................................ 20

4.6.2 Definition .............................................................................................................................................. 20

4.7 Inter-RAT Handover Out Success Rate (LTE to TD-SCDMA) ...................................................................... 21

4.7.1 Description ............................................................................................................................................ 21

4.7.2 Definition .............................................................................................................................................. 21

4.8 CSFB Preparation Success Rate ..................................................................................................................... 21

4.8.1 Description ............................................................................................................................................ 21

4.8.2 Definition .............................................................................................................................................. 23

4.9 CSFB Success Rate Based Handover (LTE to WCDMA) ............................................................................. 23

4.9.1 Description ............................................................................................................................................ 23

4.9.2 Definition .............................................................................................................................................. 23

4.10 CSFB Success Rate Based Handover (LTE to GSM) .................................................................................. 24

4.10.1 Description .......................................................................................................................................... 24

4.10.2 Definition ............................................................................................................................................ 24

4.11 CSFB Success Rate Based Handover (LTE to TD-SCDMA) ....................................................................... 25

4.11.1 Description .......................................................................................................................................... 25

4.11.2 Definition ............................................................................................................................................ 25

4.12 CSFB Success Rate Based Handover (LTE to CDMA2000) ....................................................................... 25

4.12.1 Description .......................................................................................................................................... 25

4.12.2 Definition ............................................................................................................................................ 26

5 Service Integrity KPIs ................................................................................................................ 27

5.1 Service Downlink Average Throughput ......................................................................................................... 27

5.1.1 Description ............................................................................................................................................ 27

5.1.2 Definition .............................................................................................................................................. 27

5.2 Service Uplink Average Throughput .............................................................................................................. 29

5.2.1 Description ............................................................................................................................................ 29

5.2.2 Definition .............................................................................................................................................. 29

5.3 Cell Downlink Average Throughput............................................................................................................... 29




viii

5.3.1 Description ............................................................................................................................................ 29

5.3.2 Definition .............................................................................................................................................. 30

5.4 Cell Uplink Average Throughput ................................................................................................................... 30

5.4.1 Description ............................................................................................................................................ 30

5.4.2 Definition .............................................................................................................................................. 30

5.5 Cell Downlink Maximum Throughput ........................................................................................................... 31

5.5.1 Description ............................................................................................................................................ 31

5.5.2 Definition .............................................................................................................................................. 31

5.6 Cell Uplink Maximum Throughput ................................................................................................................ 31

5.6.1 Description ............................................................................................................................................ 31

5.6.2 Definition .............................................................................................................................................. 31

6 Utilization KPIs ........................................................................................................................... 33

6.1 Resource Block Utilizing Rate ....................................................................................................................... 33

6.1.1 Description ............................................................................................................................................ 33

6.1.2 Definition .............................................................................................................................................. 33

6.2 Average CPU Load ......................................................................................................................................... 34

6.2.1 Description ............................................................................................................................................ 34

6.2.2 Definition .............................................................................................................................................. 34

7 Availability KPIs ......................................................................................................................... 35

7.1 Radio Network Unavailability Rate ............................................................................................................... 35

7.1.1 Description ............................................................................................................................................ 35

7.1.2 Definition .............................................................................................................................................. 35

8 Traffic KPIs .................................................................................................................................. 36

8.1 Radio Bearers ................................................................................................................................................. 36

8.1.1 Description ............................................................................................................................................ 36

8.1.2 Definition .............................................................................................................................................. 36

8.2 Downlink Traffic Volume ............................................................................................................................... 37

8.2.1 Description ............................................................................................................................................ 37

8.2.2 Definition .............................................................................................................................................. 37

8.3 Uplink Traffic Volume .................................................................................................................................... 38

8.3.1 Description ............................................................................................................................................ 38

8.3.2 Definition .............................................................................................................................................. 38

8.4 Average User Number .................................................................................................................................... 39

8.4.1 Description ............................................................................................................................................ 39

8.4.2 Definition .............................................................................................................................................. 39

8.5 Maximum User Number ................................................................................................................................. 40

8.5.1 Description ............................................................................................................................................ 40

8.5.2 Definition .............................................................................................................................................. 40

9 Counter List .................................................................................................................................. 41

10 References ................................................................................................................................... 47




ix

eRAN6.0 KPI Reference 1 Overview



1

1 Overview

This document specifies a set of eRAN KPIs used to evaluate the performance of the LTE

system and provides a detailed description of the counters necessary for calculating these

KPIs. Given that LTE is a new system, the KPIs in this document are drafts, and as such, are

subject to change. KPIs will be updated according to commercial network management and

radio network optimization needs.

The KPIs in this document are classified into the following seven categories:

Accessibility KPIs

Retainability KPIs

Mobility KPIs

Service integrity KPIs

Utilization KPIs

Availability KPIs

Traffic KPIs

This document contains the following contents.

Chapter Details

1 Overview Describes the overview of the document.

2 Accessibility KPIs Describes accessibility KPIs.

3 Retainability KPIs Describes retainability KPIs.

4 Mobility KPIs Describes mobility KPIs.

5 Service Integrity KPIs Describes service integrity KPIs.

6 Utilization KPIs Describes utilization KPIs.

7 Availability KPIs Describes availability KPIs.

8 Traffic KPIs Describes traffic KPIs.

9 Counter List Provides a list of associated counters.

10 References Provides a list of references.

eRAN6.0 KPI Reference 2 Accessibility KPIs



2

2 Accessibility KPIs

Accessibility KPIs are used to measure the probability that a user accesses the network and

requests services in the given operating conditions. The service provided by the E-UTRAN is

defined as EPS/E-RABs. (EPS is short for evolved packet system, and E-RAB is short for

E-UTRAN radio access bearer). Radio Resource Control (RRC) connections and System

Architecture Evolution (SAE) setups are the main procedures whose performance is measured

by accessibility KPIs.

2.1 RRC Setup Success Rate (Service)

2.1.1 Description

According to 3GPP TS 36.331, the RRC connection setup procedure is triggered by different

causes, which are identified in the "establishmentCause" field in an RRC Connection Request

message as emergency, highPriorityAccess, mt-Access, mo-Signaling, mo-Data, or

delayTolerantAccess-v1020. The UE sets the establishmentCause in accordance with the

information it receives from upper layers. The mo-signaling cause is a signaling-related cause.

All other causes are service-related causes. The accessibility KPI evaluates the RRC setup

success rate using service-related causes in a cell or radio network.

The RRC Setup Success Rate (Service) KPI is calculated based on the counters measured at

the eNodeB when the eNodeB receives an RRC Connection Request message from the UE, as

shown in Figure 2-1. The number of RRC connection attempts is collected by the eNodeB at

measurement point A, and the number of successful RRC connections is counted at

measurement point C. The related counters are discussed in chapter 9 "Counter List."




3

Figure 2-1 Measurement points for RRC connection setup

2.1.2 Definition

The RRC Setup Success Rate (Service) KPI is defined in Table 2-1. Note that the number of

RRC connection setup attempts (service) and the number of successful RRC setup

connections (service) are collected based on the description in section 2.1.1 "Description."

Table 2-1 RRC Setup Success Rate (Service)

KPI Name RRC Setup Success Rate (Service)

Measurement Scope

Cell or radio network

Formula

Associated Counters

See chapter 9 "Counter List."

Unit Percentage (%)

2.2 RRC Setup Success Rate (Signaling)

2.2.1 Description

The RRC Setup Success Rate (Signaling) KPI indicates the RRC setup success rate of the

signaling-related cause (mo-signaling) in a cell or radio network.

Like the RRC Setup Success Rate (service), the RRC Setup Success Rate (Signaling) KPI is

used to calculate the RRC setup success rate only when the "establishmentCause" field is set

to mo-signaling in a cell or radio network.




4

2.2.2 Definition

The RRC Setup Success Rate (Signaling) KPI is defined in Table 2-2. Note that the number of

RRC connection setup attempts (signaling) and the number of successful RRC setup

connections (signaling) are collected based on the description in section 2.1.1 "Description."

Table 2-2 RRC Setup Success Rate (Signaling)

KPI Name RRC Setup Success Rate (Signaling)

Measurement Scope


Formula

Associated Counters


Unit Percentage (%)

2.3 E-RAB Setup Success Rate (VoIP)

2.3.1 Description

The E-RAB Setup Success Rate (VoIP) KPI indicates the E-RAB setup success rate of the

voice over IP (VoIP) services in a cell or radio network.

According to 3GPP TS 36.300 and 3GPP TS 36.413, the counters related to this KPI are

measured when the eNodeB receives an E-RAB Setup Request message or an Initial Context

Setup Request message from the mobility management entity (MME), as shown in Figure 2-2

and Figure 2-3. The E-RAB is part of the Evolved Packet Service (EPS) bearer. According to

3GPP TS 23.401, an E-RAB is one or more Service Data Flows between UE and an EPC. The

E-RAB identity remains unique for the UE even if the UE-associated logical S1-connection

(S1 bearer) is released during periods of user inactivity. The E-RAB consists of both the

E-RAB radio bearer (between the eNodeB and the UE, which is the same as the radio bearer

defined in the EPS bearer) and the corresponding S1 bearer (between the eNodeB and the

MME).

Figure 2-2 and Figure 2-3 show two scenarios: MME-initiated E-RAB setup (Scenario A) and

UE-triggered E-RAB setup (Scenario B). Scenario B is triggered by the radio bearer setup.

Initial Context Setup Request messages are exchanged between the eNodeB and the MME. If

the E-RAB Setup Request message or Initial Context Setup Request message requires

multiple E-RAB setups at the same time, specific counters are incremented for each E-RAB.




5

Figure 2-2 Measurement point for MME-initiated E-RAB setup

Figure 2-3 Measurement points for UE-triggered E-RAB setup




6

The eNodeB collects the number of E-RAB connection setup attempts at measurement point

A, and the number of successful E-RAB connections is counted at measurement point B, as

shown in Figure 2-2 and Figure 2-3. Note that the eNodeB needs to specify the Quality of

Service (QoS) Class Identifier (QCI) for VoIP in the E-RAB setup message.

The voice service can be identified by the QoS information, particularly the QCI in the

E-RAB Setup Request message. In general, QCI 1 is assigned to the voice service.

2.3.2 Definition

The E-RAB Setup Success Rate (VoIP) KPI is defined in Table 2-3. Note that the number of

E-RAB connection setup attempts (VoIP) and the number of successful E-RAB setup

connections (VoIP) are collected based on the descriptions in section 2.3.1 "Description."

Table 2-3 E-RAB Setup Success Rate (VoIP)

KPI Name E-RAB Setup Success Rate (VoIP)

Measurement Scope


Formula

Associated Counters


Unit Percentage (%)

2.4 E-RAB Setup Success Rate (All)

2.4.1 Description

The E-RAB Setup Success Rate (All) KPI indicates the E-RAB setup success rate for all

services, including the VoIP service in a cell or radio network. This KPI is calculated based on

the counters (both the E-RAB connection setup attempts [all] and the successful E-RAB setup

[all] counters) measured at the eNodeB, as shown in Figure 2-2.

2.4.2 Definition

The E-RAB Setup Success Rate (All) KPI is defined in Table 2-4. The number of E-RAB

connection setup attempts (all) and the number of successful E-RAB setup counters (all) are

collected based on the description in section 2.3.1 "Description."




7

Table 2-4 E-RAB Setup Success Rate (All)

KPI Name E-RAB Setup Success Rate (All)

Measurement Scope


Formula

Associated Counters


Unit Percentage (%)

2.5 Call Setup Success Rate

2.5.1 Description

The Call Setup Success Rate KPI indicates the call setup success rate for all services,

including the VoIP service in a cell or radio network. This KPI is calculated based on the RRC

Setup Success Rate (Service) KPI, the S1 Signaling Connection Setup Success Rate KPI, and

the E-RAB Setup Success Rate (All) KPI.

2.5.2 Definition

The Call Setup Success Rate KPI is defined in Table 2-5. The KPI is calculated by

multiplying the RRC Setup Success Rate (Service) KPI, the S1 Signaling Connection Setup

Success Rate KPI, and the E-RAB Setup Success Rate (All) KPI.

Table 2-5 Call Setup Success Rate

KPI Name Call Setup Success Rate

Measurement Scope Cell or radio network

Formula 1100%

1

service

service

RRCConnectionSuccess S SIGConnectionEstablishSuccess ERABSetupSuccessCSSR

RRCConnectionAttempt S SIGConnectionEstablishAttempt ERABSetupAttempt

Associated Counters See chapter 9 "Counter List."

Unit Percentage (%)

eRAN6.0 KPI Reference 3 Retainability KPIs



8

3 Retainability KPIs

Retainability KPIs indicate the network's capability to retain services requested by a user for a

desired duration once the user is connected to the services. Retainability KPIs are important in

evaluating whether the system can maintain a certain level of service quality.

3.1 Call Drop Rate (VoIP)

3.1.1 Description

The Call Drop Rate (VoIP) KPI indicates the call drop rate of the VoIP services in a cell or

radio network. A VoIP call drop occurs when the VoIP E-RAB is abnormally released. Each

E-RAB is associated with QoS information. Usually, the QCI of VoIP services is 1.

An E-RAB consists of a radio bearer and a corresponding S1 bearer. Any abnormal release of

either bearer causes a call drop. A release is defined as abnormal by its release cause

according to 3GPP TS 36.413.

Two procedures can be performed to release E-RABs: E-RAB Release Indication and UE

Context Release Request, as shown in Figure 3-1.

Figure 3-1 Abnormal E-RAB release

When the eNodeB sends an E-RAB Release Indication message to the MME or a UE Context

Release Request message to the MME as shown in Figure 3-1, the abnormal E-RAB release




9

counter is incremented if the bearer to be released carries data and the release cause is not

"Normal Release", "Detach", "User Inactivity", "CS Fallback triggered", "UE Not Available

for PS Service", or "Inter-RAT Redirection". If the message contains several E-RAB ID IEs

(in the E-RAB To Be Released List IE), the counter will be incremented for each individual

E-RAB.

3.1.2 Definition

The Call Drop Rate (VoIP) KPI is defined in Table 3-1.

Table 3-1 Call Drop Rate (VoIP)

KPI Name Call Drop Rate (VoIP)

Measurement Scope


Formula

Associated Counters


Unit Percentage (%)

3.2 Service Drop Rate (All)

3.2.1 Description

The Service Drop Rate (All) KPI indicates the call drop rate of all the services in a cell or

radio network, including the VoIP service. Similar to the KPI defined in section 3.1 "Call

Drop Rate (VoIP)", this KPI measures abnormal releases at the eNodeB.

3.2.2 Definition

The Service Drop Rate (All) KPI is defined in Table 3-2.




10

Table 3-2 Service Drop Rate (All)

KPI Name Service Drop Rate (All)

Measurement Scope


Formula

Associated Counters


Unit Percentage (%)

3.3 Service Drop Rate (Always Online)

3.3.1 Description

The Service Drop Rate (Always Online) KPI indicates the call drop rate of all the services in a

cell or radio network, including the VoIP services, when the always online state is active.

The Service Drop Rate (Always Online) KPI of all services is defined in Table 3-3.

Table 3-3 Service Drop Rate (Always Online)

KPI Name Service Drop Rate (Always Online)

Measurement Scope


Formula

Associated Counters


Unit Percentage (%)

eRAN6.0 KPI Reference 4 Mobility KPIs



11

4 Mobility KPIs

Mobility KPIs are used to evaluate E-UTRAN mobility performance, which is critical to

customer experience. Three categories of mobility KPIs are defined based on the following

handover types: intra-frequency, inter-frequency, and inter-Radio Access Technology (RAT).

4.1 Intra-Frequency Handover Out Success Rate

4.1.1 Description

The Intra-Frequency Handover Out Success Rate KPI indicates the intra-frequency handover

success rate from the local cell or radio network to the intra-frequency neighboring cell or

radio network. An intra-frequency handover (HO) includes both inter-eNodeB and

intra-eNodeB scenarios.

The intra-eNodeB HO scenario is shown in Figure 4-1. The attempted HO counters are

collected at point B. When the eNodeB sends an RRC Connection Reconfiguration message

to the UE, it performs a handover. The eNodeB counts the number of times an intra-eNodeB

intra-frequency HO is attempted in the source cell. The successful HO counters are collected

at point C. The eNodeB counts the number of successful intra-eNodeB intra-frequency HOs

in the source cell when the eNodeB receives the RRC Connection Reconfiguration Complete

message from the UE.




12

Figure 4-1 Scenario for intra-frequency intra-eNodeB handover

Two scenarios are available for the inter-eNodeB HO, as shown in Figure 4-2 and Figure 4-3.

The HO attempts are collected at point B. When the source-eNodeB (S-eNodeB) sends an

RRC Connection Reconfiguration message to the UE, it decides to perform an inter-eNodeB

HO. In this KPI, the source and target cells of the handover operate at the same frequency.

The number of inter-eNodeB intra-frequency HO attempts is measured at the source cell.

The number of successful inter-eNodeB intra-frequency HOs is collected at point C, as shown

in Figure 4-2 and Figure 4-3. During a handover with the source and target cells at the same

frequency, the number of successful inter-eNodeB intra-frequency HOs is measured in the

source cell. This measurement occurs when the S-eNodeB receives a UE Context Release

message from the target-eNodeB (T-eNodeB) or a UE Context Release Command message

from the MME, indicating that the UE T-eNodeB is successfully attached to the T-eNodeB.




13

Figure 4-2 Scenario A for intra-frequency inter-eNodeB HO

Figure 4-3 Scenario B for intra-frequency inter-eNodeB HO




14

4.1.2 Definition

The Intra-Frequency Handover Out Success Rate KPI is defined in Table 4-1. Note that the

attempted HO and the successful HO counters are collected based on the description in

section 4.1.1 "Description."

Table 4-1 Intra-Frequency Handover Out Success Rate

KPI Name Intra-Frequency Handover Out Success Rate

Measurement Scope


Formula

Associated Counters


Unit Percentage (%)

4.2 Inter-Frequency Handover Out Success Rate

4.2.1 Description

The Inter-Frequency Handover Out Success Rate KPI indicates the inter-frequency handover

success rate from the local cell or radio network to the inter-frequency neighboring cell or

radio network. Note that the measurement points for the associated counters are the same as

those for the intra-frequency HO scenario described in section 4.1.1 "Description." The target

LTE cell operates at a frequency different from that of the source LTE cell, which is the only

difference between this KPI and the Intra-Frequency Handover Out Success Rate KPI.

As shown in Figure 4-1, if the source and target cells operating at different frequencies are

controlled by the same eNodeB, the eNodeB counts the number of intra-eNodeB

inter-frequency HO attempts at point B and the number of successful intra-eNodeB

inter-frequency HOs at point C in the source cell. As shown in Figure 4-2, if the handover

source and target cells are operating at different frequencies, the eNodeB counts the number

of inter-eNodeB inter-frequency HO attempts at point B and the number of successful

intra-eNodeB inter-frequency HOs at point C in the source cell.

4.2.2 Definition

The Inter-Frequency Handover Out Success Rate KPI is defined in Table 4-2. Note that the

attempted HO and the successful HO counters are collected based on the description in

section 4.2.1 "Description."




15

Table 4-2 Inter-Frequency Handover Out Success Rate

KPI Name Inter-Frequency Handover Out Success Rate

Measurement Scope


Formula

Associated Counters


Unit Percentage (%)

4.3 Handover In Success Rate

4.3.1 Description

The Handover In Success Rate KPI indicates the handover success rate from the inter- or

intra-eNodeB neighboring cells to the local cell or radio network. The HO includes both

inter-eNodeB and intra-eNodeB scenarios.

The intra-eNodeB HO scenario is shown in Figure 4-4. The attempted HO counters are

collected at point B. When the eNodeB sends an RRC Connection Reconfiguration message

to the UE, it performs a handover. The eNodeB counts the number of intra-eNodeB handover

attempts in the target cell. The successful HO counters are collected at point C. The eNodeB

counts the number of successful intra-eNodeB HOs in the target cell when the eNodeB

receives an RRC Connection Reconfiguration Complete message from the UE.

Figure 4-4 Intra-eNodeB HO

Two scenarios are available for the inter-eNodeB HO, as shown in Figure 4-5 and Figure 4-6. The HO attempts are collected at point B in the target cell when the T-eNodeB sends a




16

Handover Request Acknowledge message to the S-eNodeB or the MME. The number of

successful inter-eNodeB HO s are measured in the target cell at point C when the T-eNodeB

receives an RRC Connection Reconfiguration Complete message from the UE and sends a

UE CONTEXT RELEASE message to the S-eNodeB or when the T-eNodeB sends a

HANDOVER NOTIFY message to MME.

Figure 4-5 Scenario A for inter-eNodeB HO

Figure 4-6 Scenario B for inter-eNodeB HO




17

4.3.2 Definition

The Handover In Success Rate KPI is defined in Table 4-3. Note that the attempted HO and

the successful HO counters are collected based on the description in section 4.3.1

"Description."

Table 4-3 Handover In Success Rate

KPI Name Handover In Success Rate

Measurement Scope


Formula

Associated Counters


Unit Percentage (%)

4.4 Inter-RAT Handover Out Success Rate (LTE to CDMA2000)

4.4.1 Description

The Inter-RAT Handover Out Success Rate (LTE to CDMA2000) KPI indicates the success

rate of handovers from an LTE cell or radio network to CDMA2000 networks.

The number of LTE-to-CDMA2000 HO attempts increases by 1 at point B as shown in Figure

4-7 after the eNodeB sends a Mobility From EUTRA Command message to the UE. The

number of successful inter-RAT HOs from LTE to CDMA2000 increases by 1 at point C,

where the eNodeB receives a UE Context Release Command message from the MME after

the UE accesses the CDMA2000 network.




18

Figure 4-7 Inter-RAT handover (LTE to CDMA2000)

4.4.2 Definition

The Inter-RAT Handover Out Success Rate (LTE to CDMA2000) KPI is defined in Table 4-4.

The number of LTE-to-CDMA2000 HO attempts and the number of successful inter-RAT

HOs from LTE to CDMA2000 are collected as described in section 4.4.1 "Description."

Table 4-4 Inter-RAT Handover Out Success Rate (LTE to CDMA2000)

KPI Name Inter-RAT Handover Out Success Rate (LTE to CDMA2000)

Measurement Scope


Formula %100

_2_

_2__2_

AttemptCLIRATHO

SuccessCLIRATHOSRCLIRATHO

Associated Counters


Unit Percentage (%)




19

4.5 Inter-RAT Handover Out Success Rate (LTE to WCDMA)

4.5.1 Description

The Inter-RAT Handover Out Success Rate (LTE to WCDMA) KPI indicates the success rate

of handovers from an LTE cell or radio network to WCDMA networks.

The number of LTE-to-WCDMA HO attempts increases by 1 at point B as shown in Figure

4-8 after the eNodeB sends a Mobility From EUTRA Command message to the UE. The

number of successful inter-RAT HOs from LTE to WCDMA increases by 1 at point C, where

the eNodeB receives a UE Context Release Command message from the MME after the UE

accesses the WCDMA network.

Figure 4-8 Inter-RAT handover (LTE to WCDMA/GSM/TD-SCDMA)

4.5.2 Definition

The Inter-RAT Handover Out Success Rate (LTE to WCDMA) KPI is defined in Table 4-5.

The number of LTE-to-WCDMA HO attempts and the number of successful inter-RAT HOs

from LTE to WCDMA are collected as described in section 4.5.1 "Description."




20

Table 4-5 Inter-RAT Handover Out Success Rate (LTE to WCDMA)

KPI Name Inter-RAT Handover Out Success Rate (LTE to WCDMA)

Measurement Scope


Formula %100

_2_

_2__2_

AttemptWLIRATHO

SuccessWLIRATHOSRWLIRATHO

Associated Counters


Unit Percentage (%)

4.6 Inter-RAT Handover Out Success Rate (LTE to GSM)

4.6.1 Description

The Inter-RAT Handover Out Success Rate (LTE to GSM) KPI indicates the success rate of

handovers from an LTE cell or radio network to GSM networks.

The number of LTE-to-GSM HO attempts increases by 1 at point B as shown in Figure 4-8

after the eNodeB sends a Mobility From EUTRA Command message to the UE. The number

of successful inter-RAT HOs from LTE to GSM increases by 1 at point C, where the eNodeB

receives a UE Context Release Command message from the MME after the UE accesses the

GSM network.

4.6.2 Definition

The Inter-RAT Handover Out Success Rate (LTE to GSM) KPI is defined in Table 4-6. The

number of LTE-to-GSM HO attempts and the number of successful inter-RAT HOs from LTE

to GSM are collected as described in section 4.6.1 "Description."

Table 4-6 Inter-RAT Handover Out Success Rate (LTE to GSM)

KPI Name Inter-RAT Handover Out Success Rate (LTE to GSM)

Measurement Scope


Formula %100

_2_

_2__2_

AttemptGLIRATHO

SuccessGLIRATHOSRGLIRATHO

Associated Counters


Unit Percentage (%)




21

4.7 Inter-RAT Handover Out Success Rate (LTE to TD-SCDMA)

4.7.1 Description

The Inter-RAT Handover Out Success Rate (LTE to TD-SCDMA) KPI indicates the success

rate of handovers from an LTE cell or radio network to TD-SCDMA networks.

The number of LTE-to-TD-SCDMA HO attempts increases by 1 at point B as shown in

Figure 4-8 after the eNodeB sends a Mobility From EUTRA Command message to the UE.

The number of successful inter-RAT HOs from LTE to TD-SCDMA increases by 1 at point C,

where the eNodeB receives a UE Context Release Command message from the MME after

the UE accesses the TD-SCDMA network.

4.7.2 Definition

The Inter-RAT Handover Out Success Rate (LTE to TD-SCDMA) KPI is defined in Table 4-7.

The number of LTE-to-TD-SCDMA HO attempts and the number of successful inter-RAT

HOs from LTE to TD-SCDMA are collected as described in section 4.7.1 "Description."

Table 4-7 Inter-RAT Handover Out Success Rate (LTE to TD-SCDMA)

KPI Name Inter-RAT Handover Out Success Rate (LTE to TD-SCDMA)

Measurement Scope


Formula _ 2 __ 2 _ 100%

_ 2 _

IRATHO L T SuccessIRATHO L T SR

IRATHO L T Attempt

Associated Counters


Unit %

4.8 CSFB Preparation Success Rate

4.8.1 Description

The CSFB Preparation Success Rate KPI indicates the preparation success rate of CS fallback

(CSFB) from the E-UTRAN to inter-RAT networks.

For a UE in RRC_Idle mode, the number of CSFB preparation attempts increases by 1 at

point A as shown in Figure 4-9 after the eNodeB receives an INITIAL CONTEXT SETUP

REQUEST (with CS Fallback Indicator) message from the MME and determines that the

request is triggered by a voice service. The number of successful CSFB preparations increases

by 1 at point C, where the eNodeB successfully responses an INITIAL CONTEXT SETUP

RESPONSE message for the request triggered by the voice service.




22

Figure 4-9 CSFB preparation for a UE in RRC_idle mode

For a UE in RRC_Connected mode, the number of CSFB preparation attempts increases by 1

at point A as shown in Figure 4-10 after the eNodeB receives a UE CONTEXT

MODIFICATION REQUEST (with CS Fallback Indicator) message from the MME and

determines that the request is triggered by a voice service. The number of successful CSFB

preparations increases by 1 at point C, where the eNodeB successfully responses a UE

CONTEXT MODIFICATION RESPONSE message for the request triggered by the voice

service.

Figure 4-10 CSFB preparation for a UE in RRC_Connected mode




23

4.8.2 Definition

The CSFB Preparation Success Rate KPI is defined in Table 4-8. The number of handover

preparation attempts for CSFB and the number of successful handover preparations for CSFB

from the E-UTRAN to inter-RAT networks are collected as described in section 4.8.1

"Description."

Table 4-8 CSFB Preparation Success Rate

KPI Name CSFB Preparation Success Rate

Measurement Scope


Formula _ __ _ 100%

_ _

CSFB Preparation SuccessCSFB Preparation SR

CSFB Preparation Attempt

Associated Counters


Unit %

4.9 CSFB Success Rate Based Handover (LTE to WCDMA)

4.9.1 Description

The CSFB Success Rate Based Handover (LTE to WCDMA) KPI indicates the success rate of

handover-based LTE-to-WCDMA CSFB.

The number of handover-based LTE-to-WCDMA CSFB attempts increases by 1 at point B as

shown in Figure 4-8 after the eNodeB sends a Mobility From EUTRA Command message to

the UE and performs CSFB to a WCDMA network. The number of successful handover-based

LTE-to-WCDMA CSFB executions increases by 1 at point C, where the eNodeB receives a

UE CONTEXT RELEASE COMMAND message from the MME after the UE successfully

accesses the WCDMA network.

4.9.2 Definition

The CSFB Success Rate Based Handover (LTE to WCDMA) KPI is defined in Table 4-9. The

number of handover-based LTE-to-WCDMA CSFB attempts and the number of successful

handover-based LTE-to-WCDMA CSFB executions are collected as described in section 4.9.1

"Description."




24

Table 4-9 CSFB Success Rate Based Handover (LTE to WCDMA)

KPI Name CSFB Success Rate Based Handover (LTE to WCDMA)

Measurement Scope


Formula _ 2 _ __ 2 _ _ 100%

_ 2 _ _

CSFB L W BasedHO SuccessCSFB L W BasedHO SR

CSFB L W BasedHO Attempt

Associated Counters


Unit %

4.10 CSFB Success Rate Based Handover (LTE to GSM)

4.10.1 Description

The CSFB Success Rate Based Handover (LTE to GSM) KPI indicates the success rate of

handover-based LTE-to-GSM CSFB.

The number of handover-based LTE-to-GSM CSFB attempts increases by 1 at point B as

shown in Figure 4-8 after the eNodeB sends a Mobility From EUTRA Command message to

the UE and performs CSFB to a GSM network. The number of successful handover-based

LTE-to-GSM CSFB executions increases by 1 at point C, where the eNodeB receives a UE

CONTEXT RELEASE COMMAND message from the MME after the UE successfully

accesses the GSM network.

4.10.2 Definition

The CSFB Success Rate Based Handover (LTE to GSM) KPI is defined in Table 4-10. The

number of handover-based LTE-to-GSM CSFB attempts and the number of successful

handover-based LTE-to-GSM CSFB executions are collected as described in section 4.10.1

"Description."

Table 4-10 CSFB Success Rate Based Handover (LTE to GSM)

KPI Name CSFB Success Rate Based Handover (LTE to GSM)

Measurement Scope


Formula _ 2 _ __ 2 _ _ 100%

_ 2 _ _

CSFB L G BasedHO SuccessCSFB L G BasedHO SR

CSFB L G BasedHO Attempt

Associated Counters


Unit %




25

4.11 CSFB Success Rate Based Handover (LTE to TD-SCDMA)

4.11.1 Description

The CSFB Success Rate Based Handover (LTE to TD-SCDMA) KPI indicates the success

rate of handover-based LTE-to-TD-SCDMA CSFB.

The number of handover-based LTE-to-TD-SCDMA CSFB attempts increases by 1 at point B

as shown in Figure 4-8 after the eNodeB sends a Mobility From EUTRA Command message

to the UE and performs CSFB to a TD-SCDMA network. The number of successful

handover-based LTE-to-TD-SCDMA CSFB executions increases by 1 at point C, where the

eNodeB receives a UE CONTEXT RELEASE COMMAND message from the MME after the

UE successfully accesses the TD-SCDMA network.

4.11.2 Definition

The CSFB Success Rate Based Handover (LTE to TD-SCDMA) KPI is defined in Table 4-11.

The number of handover-based LTE-to-TD-SCDMA CSFB attempts and the number of

successful handover-based LTE-to-TD-SCDMA CSFB executions are collected as described

in section 4.11.1 "Description."

Table 4-11 CSFB Success Rate Based Handover (LTE to TD-SCDMA)

KPI Name CSFB Success Rate Based Handover (LTE to TD-SCDMA)

Measurement Scope


Formula _ 2 _ __ 2 _ _ 100%

_ 2 _ _

CSFB L T BasedHO SuccessCSFB L T BasedHO SR

CSFB L T BasedHO Attempt

Associated Counters


Unit %

4.12 CSFB Success Rate Based Handover (LTE to CDMA2000)

4.12.1 Description

The CSFB Success Rate Based Handover (LTE to CDMA2000) KPI indicates the success rate

of handover-based LTE-to-CDMA2000 CSFB.

The number of handover-based LTE-to-CDMA2000 CSFB attempts increases by 1 at point B

as shown in Figure 4-7 after the eNodeB sends a Mobility From EUTRA Command message

to the UE and performs CSFB to a CDMA2000 network. The number of successful handover-based LTE-to-CDMA2000 CSFB executions increases by 1 at point C, where the




26

eNodeB receives a UE CONTEXT RELEASE COMMAND message from the MME after the

UE successfully accesses the CDMA2000 network.

4.12.2 Definition

The CSFB Success Rate Based Handover (LTE to CDMA2000) KPI is defined in Table 4-12.

The number of handover-based LTE-to-CDMA2000 CSFB attempts and the number of

successful handover-based LTE-to-CDMA2000 CSFB executions are collected as described

in section 4.12.1 "Description."

Table 4-12 CSFB Success Rate Based Handover (LTE to CDMA2000)

KPI Name CSFB Success Rate Based Handover (LTE to CDMA2000)

Measurement Scope


Formula _ 2 _ __ 2 _ _ 100%

_ 2 _ _

CSFB L C BasedHO SuccessCSFB L C BasedHO SR

CSFB L C BasedHO Attempt

Associated Counters


Unit %

eRAN6.0 KPI Reference 5 Service Integrity KPIs



27

5 Service Integrity KPIs

The service integrity KPIs indicate the E-UTRAN impacts on the service quality provided to

the end-user. The service integrity KPIs can be calculated for each cell or radio network.

5.1 Service Downlink Average Throughput

5.1.1 Description

The Service Downlink Average Throughput KPI consists of nine sub-KPIs that are mapped to

nine QCIs. These sub-KPIs indicate the busy-hour downlink (DL) throughput of a service

with a specific QCI per user in each cell. The Service Downlink Average Throughput KPI

reflects the end-user experience.

5.1.2 Definition

The Service Downlink Average Throughput KPI is defined in Table 5-2. Nine different

sub-KPIs exist for each QCI. The formula for each KPI is mapped to its corresponding

counter. Table 5-1 lists the requirements for services with different QCIs.

Table 5-1 Requirements for services with different QCIs

QCI Resource Type

Priority Packet Delay Budget (NOTE 1)

Packet Error Loss

Rate (NOTE 2)

Example Services

1 GBR 2 100 ms 10-2

Conversational Voice

2 4 150 ms 10-3

Conversational Video (Live

Streaming)

3 3 50 ms 10-3

Real Time Gaming

4 5 300 ms 10-6

Non-Conversational Video

(Buffered Streaming)




28

QCI Resource Type

Priority Packet Delay Budget (NOTE 1)

Packet Error Loss

Rate (NOTE 2)

Example Services

5 Non-GBR 1 100 ms 10-6

IMS Signaling

6 6 300 ms 10-6

Video (Buffered Streaming)

TCP-based (e.g., www, e-mail,

chat, ftp, p2p file sharing,

progressive video, etc.)

7 7 100 ms 10-3

Voice, Video (Live Streaming)

Interactive Gaming

8 8 300 ms 10-6

Video (Buffered Streaming)

TCP-based (e.g., www, e-mail,

chat, ftp, p2p file sharing,

progressive video, etc.)

9 9 300 ms 10-6

Table 5-2 Service Downlink Average Throughput

KPI Name Service Downlink Average Throughput

Measurement Scope


Formula

Associated Counters


Unit kbit/s




29

5.2 Service Uplink Average Throughput

5.2.1 Description

The Service Uplink Average Throughput KPI consists of nine sub-KPIs that are mapped to

nine QCIs. These sub-KPIs indicate the busy-hour uplink (UL) throughput of a service with a

specific QCI per user in each cell. The Service Uplink Average Throughput KPI reflects the

end-user experience.

5.2.2 Definition

The Service Uplink Average Throughput KPI is defined in Table 5-3. Nine sub-KPIs exist for

each QCI. The formula for each KPI is mapped to its corresponding counter.

Table 5-3 Service Uplink Average Throughput

KPI Name Service Uplink Average Throughput

Measurement Scope


Formula

Associated Counters


Unit kbit/s

5.3 Cell Downlink Average Throughput

5.3.1 Description

The Cell Downlink Average Throughput KPI indicates a cell's average downlink throughput

when data is transferring at the downlink. The Cell Downlink Average Throughput KPI

reflects the cell's capacity.




30

5.3.2 Definition

The Cell Downlink Average Throughput KPI is defined in Table 5-4 and is calculated based

on all the data transferred at the downlink and the time it takes to transfer. The formula is

mapped to its corresponding counters.

Table 5-4 Cell Downlink Average Throughput

KPI Name Cell Downlink Average Throughput

Measurement Scope


Formula

Associated Counters


Unit kbit/s

5.4 Cell Uplink Average Throughput

5.4.1 Description

The Cell Uplink Average Throughput KPI indicates the average cell uplink throughput when

data is transferring at the uplink. The Cell Uplink Average Throughput KPI reflects the cell's

capacity.

5.4.2 Definition

The Cell Uplink Average Throughput KPI is defined in Table 5-5 and is calculated based on

all the data transferred at the uplink and the time it takes to transfer. The formula is mapped to

its corresponding counters.

Table 5-5 Cell Uplink Average Throughput

KPI Name Cell Uplink Average Throughput

Measurement Scope


Formula

Associated Counters


Unit kbit/s




31

5.5 Cell Downlink Maximum Throughput

5.5.1 Description

The Cell Downlink Maximum Throughput KPI indicates the cell downlink maximum

throughput when data is transferring at the downlink. The Cell Downlink Maximum

Throughput KPI reflects the cell's capacity.

5.5.2 Definition

The Cell Downlink Maximum Throughput KPI is defined in Table 5-6 and is calculated based

on the maximum volume of traffic transferred each second. The formula is mapped to its

corresponding counters.

Table 5-6 Cell Downlink Maximum Throughput

KPI Name Cell Downlink Maximum Throughput

Measurement Scope


Formula

Associated Counters


Unit kbit/s

5.6 Cell Uplink Maximum Throughput

5.6.1 Description

This Cell Uplink Maximum Throughput KPI indicates the cell's maximum uplink throughput

when data is transferring at the uplink. The Cell Uplink Maximum Throughput KPI reflects

the cell's capacity.

5.6.2 Definition

The Cell Uplink Maximum Throughput KPI is defined in Table 5-7 and is calculated based on

the maximum volume of traffic transferred each second. The formula is mapped to its





32

Table 5-7 Cell Uplink Maximum Throughput

KPI Name Cell Uplink Maximum Throughput

Measurement Scope


Formula

Associated Counters


Unit kbit/s

eRAN6.0 KPI Reference 6 Utilization KPIs



33

6 Utilization KPIs

Utilization KPIs are used to evaluate the capabilities, such as the capability to meet traffic

demands, in specific internal conditions.

6.1 Resource Block Utilizing Rate

6.1.1 Description

The Resource Block Utilizing Rate KPI consists of two sub-KPIs: the uplink resource block

(RB) utilizing rate and downlink RB utilizing rate. These two sub-KPIs indicate the busy-hour

DL and UL RB utilizing rates in each cell or radio network.

6.1.2 Definition

The uplink and downlink Resource Block Utilizing Rate KPIs are defined in Table 6-1.

Table 6-1 Resource Block Utilizing Rate

KPI Name Resource Block Utilizing Rate

Measurement Scope


Formula

Associated Counters


Unit Percentage (%)

eRAN6.0 KPI Reference 6 Utilization KPIs



34

6.2 Average CPU Load

6.2.1 Description

The Average CPU Load KPI indicates the CPU usage during busy hours.

6.2.2 Definition

The Average CPU Load KPI is defined in Table 6-2. The CPU load is calculated by averaging

the CPU usage ratio during the measurement period.

Table 6-2 Average CPU Load

KPI Name Average CPU Load

Measurement Scope

CPU

Formula MeanCPUUtility

Associated Counters


Unit Percentage (%)

eRAN6.0 KPI Reference 7 Availability KPIs



35

7 Availability KPIs

A cell is available when the eNodeB can provide EPS bearer services. Availability in a cell

can be measured when a variety of hardware/software faults occurs in the cell.

7.1 Radio Network Unavailability Rate

7.1.1 Description

The Radio Network Unavailability Rate KPI indicates the percentage of time when cells in a

radio network are unavailable. This KPI is used to evaluate the deterioration of network

performance caused by unavailable cells on the radio network during busy hours.

7.1.2 Definition

The Radio Network Unavailability Rate KPI is defined in Table 7-1. This KPI is calculated

based on the length of time all cell services are unavailable on the radio network.

Table 7-1 Radio Network Unavailability Rate

KPI Name Radio Network Unavailability Rate

Measurement Scope

Radio network

Formula

NOTE

"SP" indicates the reporting period for counters in minutes.

Associated Counters


Unit Percentage (%)

eRAN6.0 KPI Reference 8 Traffic KPIs



36

8 Traffic KPIs

Traffic KPIs are used to measure the traffic volume on the LTE Radio Access Network (RAN).

Based on traffic types, the traffic KPIs are classified into the following categories: radio

bearers, downlink traffic volume, and uplink traffic volume.

8.1 Radio Bearers

8.1.1 Description

The Radio Bearers KPI consists of ten sub-KPIs. One KPI corresponds to the total of radio

bearers and the other nine correspond to nine QCIs. This set of sub-KPIs indicates the average

number of radio bearers in a cell or radio network. The radio bearer for each QCI is based on

the number of active RRC connections for each QCI, according to the QCI defined in the QoS

information.

8.1.2 Definition

The Radio Bearers KPIs are defined in Table 8-1 and include ten different sub-KPIs. The

formula for each KPI is mapped to its corresponding counter.




37

Table 8-1 Radio Bearers

KPI Name Radio Bearers

Measurement Scope


Formula RadioBearers

RadioBearers_QCI_1

RadioBearers_QCI_2

RadioBearers_QCI_3

RadioBearers_QCI_4

RadioBearers_QCI_5

RadioBearers_QCI_6

RadioBearers_QCI_7

RadioBearers_QCI_8

RadioBearers_QCI_9

Associated Counters


Unit NA

8.2 Downlink Traffic Volume

8.2.1 Description

Similar to the Radio Bearers KPI, the Downlink Traffic Volume KPI consists of ten sub-KPIs.

One KPI corresponds to the total DRB traffic volume, and the other nine correspond to nine

QCIs. This set of sub-KPIs indicates the downlink traffic volume in a cell, which is measured

at the PDCP layer and excludes the PDCP header.

8.2.2 Definition

The Downlink Traffic Volume KPIs are defined in Table 8-2 and include ten sub-KPIs. The





38

Table 8-2 Downlink Traffic Volume

KPI Name Downlink Traffic Volume

Measurement Scope


Formula DLTrafficVolume

DLTrafficVolume_QCI_1









Associated Counters


Unit bit

8.3 Uplink Traffic Volume

8.3.1 Description

Similar to the Downlink Traffic Volume KPI, the Uplink Traffic Volume KPI consists of ten

sub-KPIs. One KPI corresponds to the total of traffic volume for DRBs, and the other nine

correspond to nine QCIs. This set of sub-KPIs indicates a cell's uplink traffic volume. The

sub-KPIs are measured at the PDCP layer and exclude the PDCP header.

8.3.2 Definition

The Uplink Traffic Volume KPIs are defined in Table 8-3 and include ten sub-KPIs. The





39

Table 8-3 Uplink Traffic Volume

KPI Name Uplink Traffic Volume

Measurement Scope


Formula olumeULTrafficV

1__QCIolumeULTrafficV









Associated Counters


Unit bit

8.4 Average User Number

8.4.1 Description

The Average User Number KPI indicates the average number of users in RRC_Connected

mode in a cell. This value is calculated based on samples. The eNodeB records the number of

users in the cell to be sampled every second and then calculates the average value of these

samples throughout the measurement period.

8.4.2 Definition

The Average User Number KPI is defined in Table 8-4. The formula is mapped to its





40

Table 8-4 Average User Number

KPI Name Average User Number

Measurement Scope


Formula AveUserNumber

Associated Counters


Unit NA

8.5 Maximum User Number

8.5.1 Description

The Maximum User Number KPI evaluates the maximum number of users in

RRC_Connected mode of a cell in a certain period of time. This value is calculated based on

samples. The eNodeB records the number of users in the cell to be sampled every second and

then calculates the maximum value of these samples throughout the measurement period.

8.5.2 Definition

The Maximum User Number KPI is defined in Table 8-5. The formula is mapped to its


Table 8-5 Maximum User Number

KPI Name Maximum User Number

Measurement Scope


Formula MaxUserNumber

Associated Counters


Unit NA

eRAN6.0 KPI Reference 9 Counter List



41

9 Counter List

Table 9-1 provides a list of all the counters relevant to KPI calculation. In each KPI

specification, one or more parameters are used to calculate the KPI, as shown in the KPI

formula. Each parameter is mapped to a counter. For details on each counter, see eNodeB

Performance Counter Reference.

Note that only QCI 1 is used for VoIP service (conversational voice). According to Table 6.1.7

in 3GPP TS 23.203, QCI 7 can also be assigned to non-conversational voice. In this document,

QCI 7 is not considered to be part of the VoIP service in KPI calculation.

The counters listed in the following table are described in eNodeB Performance Counter

Reference.

Table 9-1 KPI-related counter list

KPI Parameter in KPI Formula

Mapped Counters

RRC Setup Success

Rate (Service)

RRCConnectionAttem

ptservice

L.RRC.ConnReq.Att.Emc +

L.RRC.ConnReq.Att.HighPri +

L.RRC.ConnReq.Att.Mt +

L.RRC.ConnReq.Att.MoData +

L.RRC.ConnReq.Att.DelayTol

RRCConnectionSucce

ssservice

L.RRC.ConnReq.Succ.Emc +

L.RRC.ConnReq.Succ.HighPri +

L.RRC.ConnReq.Succ.Mt +

L.RRC.ConnReq.Succ.MoData +

L.RRC.ConnReq.Succ.DelayTol

RRC Setup Success

Rate (Signaling)

RRCConnectionAttem

ptsignaling

L.RRC.ConnReq.Att.MoSig

RRCConnectionSucce

sssignaling

L.RRC.ConnReq.Succ.MoSig

E-RAB Setup Success

Rate (VoIP)

VoIPERABSetupAtte

mpt

L.E-RAB.AttEst.QCI.1

VoIPERABSetupSucc

ess L.E-RAB.SuccEst.QCI.1

E-RAB Setup Success ERABSetupAttempt L.E-RAB.AttEst




42


Mapped Counters

Rate (All) ERABSetupSuccess L.E-RAB.SuccEst

Call Setup Success

Rate

RRCConnectionAttem

ptservice

L.RRC.ConnReq.Att.Emc +

L.RRC.ConnReq.Att.HighPri +

L.RRC.ConnReq.Att.Mt +

L.RRC.ConnReq.Att.MoData +

L.RRC.ConnReq.Att.DelayTol

RRCConnectionSucce

ssservice

L.RRC.ConnReq.Succ.Emc +

L.RRC.ConnReq.Succ.HighPri +

L.RRC.ConnReq.Succ.Mt +

L.RRC.ConnReq.Succ.MoData +

L.RRC.ConnReq.Succ.DelayTol

S1SIGConnectionEsta

blishAttempt

L.S1Sig.ConnEst.Att

S1SIGConnectionEsta

blishSuccess

L.S1Sig.ConnEst.Succ

ERABSetupAttempt L.E-RAB.AttEst

ERABSetupSuccess L.E-RAB.SuccEst

Call Drop Rate

(VoIP)

VoIPERABAbnormal

Release

L.E-RAB.AbnormRel.QCI.1

VoIPERABRelease L.E-RAB.AbnormRel.QCI.1 +

L.E-RAB.NormRel.QCI.1

Service Drop Rate

(All)

ERABAbnormalRelea

se

L.E-RAB.AbnormRel

ERABRelease L.E-RAB.AbnormRel +

L.E-RAB.NormRel

Service Drop Rate

(Always Online)

ERABAbnormalRelea

seOfAlwaysOnline

L.E-RAB.AbnormRel

ERABReleaseOfAlwa

ysOnline

L.E-RAB.AbnormRel +

L.E-RAB.NormRel +

L.E-RAB.Num.Syn2Unsyn

Intra-Frequency

Handover Out

Success Rate

IntraFreqHOOutAttem

pt

L.HHO.IntraeNB.IntraFreq.ExecAttOut

+

L.HHO.IntereNB.IntraFreq.ExecAttOut

IntraFreqHOOutSucce

ss

L.HHO.IntraeNB.IntraFreq.ExecSuccO

ut +

L.HHO.IntereNB.IntraFreq.ExecSuccO

ut

Inter-Frequency

Handover Out

Success Rate

InterFreqHOOutAttem

pt

L.HHO.IntraeNB.InterFreq.ExecAttOut

+

L.HHO.IntereNB.InterFreq.ExecAttOut




43


Mapped Counters

InterFreqHOOutSucce

ss

L.HHO.IntraeNB.InterFreq.ExecSuccO

ut +

L.HHO.IntereNB.InterFreq.ExecSuccO

ut

Handover In Success

Rate

HOInAttempt L.HHO.IntraeNB.ExecAttIn +

L.HHO.IntereNB.ExecAttIn

HOInSuccess L.HHO.IntraeNB.ExecSuccIn +

L.HHO.IntereNB.ExecSuccIn

Inter-RAT Handover

Out Success Rate

(LTE to CDMA2000)

IRATHO_L2C_Attem

pt

L.IRATHO.E2C.ExecAttOut

IRATHO_L2C_Succe

ss

L.IRATHO.E2C.ExecSuccOut

Inter-RAT Handover

Out Success Rate

(LTE to WCDMA)

IRATHO_L2W_Atte

mpt

L.IRATHO.E2W.ExecAttOut

IRATHO_L2W_Succe

ss

L.IRATHO.E2W.ExecSuccOut

Inter-RAT Handover

Out Success Rate

(LTE to GSM)

IRATHO_L2G_Attem

pt L.IRATHO.E2G.ExecAttOut

IRATHO_L2G_Succe

ss

L.IRATHO.E2G.ExecSuccOut

Inter-RAT Handover

Out Success Rate

(LTE to TD-SCDMA)

IRATHO_L2T_Attem

pt

L.IRATHO.E2T.ExecAttOut

IRATHO_L2T_Succe

ss

L.IRATHO.E2T.ExecSuccOut

CSFB Preparation

Success Rate

CSFB_Preparation_At

tepmt

L.CSFB.PrepAtt

CSFB_Preparation_Su

ccess

L.CSFB.PrepSucc

CSFB Success Rate

Based Handover(LTE

to WCDMA)

CSFB_L2W_BasedH

O_Attepmt

L.IRATHO.E2W.CSFB.ExecAttOut

CSFB_L2W_BasedH

O_Success

L.IRATHO.E2W.CSFB.ExecSuccOut

CSFB Success Rate

Based Handover(LTE

to GSM)

CSFB_L2G_BasedHO

_Attepmt

L.IRATHO.E2G.CSFB.ExecAttOut

CSFB_L2G_BasedHO

_Success

L.IRATHO.E2G.CSFB.ExecSuccOut

CSFB Success Rate

Based Handover(LTE

CSFB_L2T_BasedHO

_Attepmt

L.IRATHO.E2T.CSFB.ExecAttOut




44


Mapped Counters

to TD-SCDMA) CSFB_L2T_BasedHO

_Success

L.IRATHO.E2T.CSFB.ExecSuccOut

CSFB Success Rate

Based Handover(LTE

to CDMA2000)

CSFB_L2C_BasedHO

_Attepmt

L.IRATHO.E2C.CSFB.ExecAttOut

CSFB_L2C_BasedHO

_Success

L.IRATHO.E2C.CSFB.ExecSuccOut

Service Downlink

Average Throughput

DLAverageThroughpu

t_QCI_n

L.Thrp.bits.DL.QCI.1 /

L.Thrp.Time.DL.QCI.1

















Service Uplink

Average Throughput

ULAverageThroughpu

t_QCI_n

L.Thrp.bits.UL.QCI.1 /

L.Thrp.Time.UL.QCI.1
















45


Mapped Counters





Cell Downlink

Average Throughput

CellDLTrafficVolume L.Thrp.bits.DL

CellDLTransferTime L.Thrp.Time.Cell.DL.HighPrecision

Cell Uplink Average

Throughput

CellULTrafficVolume L.Thrp.bits.UL

CellULTransferTime L.Thrp.Time.Cell.UL.HighPrecision

Cell Downlink

Maximum

Throughput

CellDLMaxTrafficVol

umeforEach1s

L.Thrp.bits.DL.Max

Cell Uplink

Maximum

Throughput

CellULMaxTrafficVol

umeforEach1s

L.Thrp.bits.UL.Max

Resource Block

Utilizing Rate

RB_UsedDL L.ChMeas.PRB.DL.Used.Avg

RB_AvailableDL L.ChMeas.PRB.DL.Avail

RB_UsedUL L.ChMeas.PRB.UL.Used.Avg

RB_AvailableUL L.ChMeas.PRB.UL.Avail

Average CPU Load MeanCPUUtility VS.BBUBoard.CPULoad.Mean

Radio Network

Unavailability Rate CellUnavailTime L.Cell.Unavail.Dur.Sys +

L.Cell.Unavail.Dur.Manual

Radio Bearers RadioBearers L.Traffic.DRB

RadioBearers_QCI_n L.Traffic.DRB.QCI.1

L.Traffic.DRB.QCI.2

L.Traffic.DRB.QCI.3

L.Traffic.DRB.QCI.4

L.Traffic.DRB.QCI.5

L.Traffic.DRB.QCI.6

L.Traffic.DRB.QCI.7

L.Traffic.DRB.QCI.8

L.Traffic.DRB.QCI.9

Downlink Traffic

Volume

DLTrafficVolume L.Thrp.bits.DL

DLTrafficVolume_QC L.Thrp.bits.DL.QCI.1




46


Mapped Counters

I_n L.Thrp.bits.DL.QCI.2

L.Thrp.bits.DL.QCI.3







Uplink Traffic

Volume

ULTrafficVolume L.Thrp.bits.UL

ULTrafficVolume_QC

I_n

L.Thrp.bits.UL.QCI.1









Average User Number AvgUserNumber L.Traffic.User.Avg

Maximum User

Number

MaxUserNumber L.Traffic.User.Max

eRAN6.0 KPI Reference 10 References



47

10 References

1. 3GPP, TS36.331 v10.9.0 (March 2013), "Evolved Universal Terrestrial Radio Access

(E-UTRA), Radio Resource Control (RRC); Protocol Specification, (Release 10)"

2. 3GPP, TS36.300 v8.6.0 (September 2008), "Evolved Universal Terrestrial Radio Access

(E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN);

Overall description; Stage 2 (Release 8)"

3. 3GPP, TS36.413 v8.3.0 (September 2008), "Evolved Universal Terrestrial Radio Access

(E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); S1

Application Protocol (S1AP) (Release 8)"

4. 3GPP, TS23.401 v8.4.0 (December 2008), "Technical Specification Group Services and

System Aspects; General Packet Radio Service (GPRS) enhancements for Evolved

Universal Terrestrial Radio Access Network (E-UTRAN) access (Release 8)"

5. 3GPP, TS23.203 v8.3.1 (September 2008), "Technical Specification Group Services and

System Aspects: Policy and charging control architecture (Release 8)"

6. eNodeB Performance Counter Reference

Date post:	12-Apr-2016
Category:	Documents
Upload:	futrono
View:	102 times
Download:	9 times

Eran6.0 Kpi Reference 05(PDF)-En

Documents