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5 Key Performance Indicators

About This Chapter

This topic describes the key performance indicators (KPIs). According to indicated

performances, KPIs are classified into CS KPIs and PS KPIs.

5.1 Introduction to Key Performance Indicators

This topic gives the introduction to KPIs that reflect network performance. Through monitoring

the variations of performance counters, you can promptly find out network performance

problems.

5.2 CS Accessibility KPIs

This topic describes the CS Accessibility KPIs that mainly indicate the call success rate when aMS accesses the network. Low Accessibility KPIs directly leads to low user satisfaction.

5.3 CS Retainability KPIs

This topic describes the CS Retainability KPIs that indicate the ratio of moving MSs to all MSs,

the moving fr equency, and the success rate of handovers on the move. In addition, these KPIs

indicate the capability of providing continuous services. A low handover success rate may lead

to a high call drop rate. A low success rate leads to low user satisfaction.

5.4 CS Resource Utilization KPIs

This topic describes the CS Resource Utilization KPIs that are used to monitor the load of hot

spot cells and the network. These KPIs can serve as references for capacity expansion. The traffic

volume KPIs help to obtain the ratio of busy-hour traffic to idle-hour traffic, to evaluate the

utilization of system resources, and to adjust charges. The equipment availability KPIs help to

know the running status of equipment, such as the running status of channels. If these KPIs are

low, equipment and transmission may be faulty.

5.5 PS Throughput KPIs

This topic describes the PS Throughput KPIs that are used to monitor the load of hot spot cells

and the network and to obtain service models. These KPIs can serve as references for capacity

expansion. The PS Throughput KPIs help to obtain the busy-hour PS traffic and the idle-hour

PS traffic, to evaluate the utilization of system resources, and to facilitate service assessment of

carriers.

5.6 PS Transmission KPIs

This topic describes the PS Transmission KPIs that indicate the quality of radio transmissionlinks in a cell. If the RLC data block retransmission rate in a cell is high, the quality of the radio

HUAWEI BSC6000 Base Station Subsystem

BSS Performance Management Guidelines 5 Key Performance Indicators

Issue 01 (2007-09-05) Huawei Technologies Proprietary 5-1



transmission links in the cell is poor. Therefore, you need to take corresponding measures, such

as RF optimization.

5.7 PS Accessibility KPIs

This topic describes the PS Accessibility KPIs that indicate whether MSs can easily access cells.

Poor PS Accessibility KPIs directly affect user satisfaction.

5.8 PS Resource Utilization KPIs

This topic describes the PS Resource Utilization KPIs that indicate the utilization of the network

resource and the busy states of services. Thus, these KPIs can be used to guide network

expansion.

5.9 PS Retainability KPIs

This topic describes the PS Retainability KPIs that mainly involve the uplink and downlink TBF

call drop rates. These KPIs indicate the capability of providing continuous services by the

network and are directly related to user satisfaction. Thus, an increase in call drop rate directly

leads to a decrease in user satisfaction.

5.10 PS End-to-End Delay KPIsThis topic describes the PS End-to-End Delay KPIs that indicate the service response speed of

the network. Long delay affects user satisfaction.

5.11 PS End-to-End Quality KPIs

This topic describes the PS end-to-end quality KPIs. They involve the performance factors of

terminals, the radio access network, and the core network. Now, the main performance

bottleneck comes from the radio access network. Therefore, these KPIs indicate the end-to-end

service data link bearing capability of the GPRS network, which are directly related to user

satisfaction.



BSS Performance Management Guidelines

5-2 Huawei Technologies Proprietary Issue 01 (2007-09-05)



5.1 Introduction to Key Performance Indicators

This topic gives the introduction to KPIs that reflect network performance. Through monitoring

the variations of performance counters, you can promptly find out network performance

problems.

Property

Each counter has the following three properties:

l Measurement object: indicates the measurement range, such as the BSC, the PCU, or a cell.

l Measurement family: indicates the signaling procedure or algorithm, such as call access

and TBF setup.

l Measured service: indicates the measured service type, such as CS and PS services.

Measurement Family

Figure 5-1 shows the measurement family of the CS domain performance counters. Call

measurement and channel measurement are very important. Most of performance counters are

distributed in the two measurement families.

l Call Measurement per BSC refers to the measurement of call services in a BSC.

l Channel Measurement per BSC refers to the measurement of various counters related to

channels.






Figure 5-1 KPIs classified by measurement object in the CS

Performance

measurement Call measurement

Channel

measurement

BTS management

measurement

System load

measurement

Paging

measurement

Measurement report

measurement

Resource

measurement

SCCP measurement

MTP3 measurement

LAPD measurement

PCU measurement

MSC measurement

CBC measurement

BSC overallperformance

measurement

Figure 5-2 shows the measurement family of the CS performance counters. Cell counters are

very important. Most of the KPIs are calculated according to these counters.







Figure 5-2 KPIs classified by measurement object in the PS

Performance

measurement

BSC overall

performance

measurement

NS performance

measurement

G-Abis interface

performance

measurement

System load

measurement

Cell performance

measurement

CPU performance

measurement

BSSGP performance

measurement

PB interface

performance

measurement

PCU measurement

Classification of KPIs by Measurement Mode

According to the indicated performance, KPIs that are commonly used in routine monitoring

are classified as follows:

The CS KPIs can be categorized into:

l Accessibility KPIs

l Retainability KPIs

l Resource Utilization

The PS KPIs can be categorized into:

l Throughput KPIs

l Transmission KPIs

l Accessibility KPIs

l Resource Utilization

l Retainability KPIs

l End-to-End Quality KPIs

l End-to-End Quality KPIs

Collection of KPIs

CS KPIs can be viewed and analyzed on the M2000. In addition, KPIs can be exported from the

M2000 as a .csv, .xml, or .txt file. CS KPIs can be viewed and analyzed through the BSC6000

intelligent report system. In addition, KPIs can be exported from the system as a .xml, .xls,

or .txt file.

PS KPIs, such as Throughput KPIs, Transmission KPIs, Accessibility KPIs, Resource

Utilizations, and Retainability KPIs can be viewed and analyzed on the M2000. In addition,KPIs can be exported from the M2000 as a .csv, .xml, or .txt file.






In addition, PS KPIs can be set and queried through the OMC traffic console.

End-to-end performance KPIs can be queried through Drive Test and Call Quality Test.

5.2 CS Accessibility KPIsThis topic describes the CS Accessibility KPIs that mainly indicate the call success rate when a

MS accesses the network. Low Accessibility KPIs directly leads to low user satisfaction.

5.2.1 Immediate Assignment Success Rate

This topic describes the definition, type, unit, and associated original KPIs of the Immediate

Assignment Success Rate.

5.2.2 Congestion Rate on SDCCH (All Channels Busy)

This topic describes the definition, type, unit, and associated original KPIs of the Congestion

Rate on SDCCH (All Channels Busy).5.2.3 SDCCH Call Drop Rate

This topic describes the definition, type, unit, and associated original KPIs of the SDCCH Call

Drop Rate.

5.2.4 TCH Assignment Success Rate

This topic describes the definition, type, unit, and associated original KPIs of the TCH


5.2.5 Congestion Rate on TCH (All Channels Busy)


Rate on TCH (All Channels Busy).

5.2.6 Successful TCH Seizures

This topic describes the definition, type, unit, and associated original KPIs of the Successful

TCH Seizures.

5.2.7 Call Setup Success Rate

This topic describes the definition, type, unit, and associated original KPIs of the Call Setup

Success Rate.

5.2.8 BSS Call Setup Success Rate

This topic describes the definition, type, unit, and associated original KPIs of the BSS Call Setup

Success Rate.

5.2.9 Paging Overload Rate

This topic describes the definition, type, unit, and associated original KPIs of the Paging

Overload Rate.

5.2.1 Immediate Assignment Success Rate

This topic describes the definition, type, unit, and associated original KPIs of the Immediate


Table 5-1 Immediate Assignment Success Rate

Name Immediate Assignment Success Rate







Definition Immediate Assignment Success Rate = Call Setup Indications (Circuit

Service)/Channel Requests (Channel Requests) x 100%

Type Calculation KPI

Unit %

Associated

Original KPIs

Call Setup Indications (Circuit Service) = Call Setup Indications (SDCCH)

(Circuit Service) + Call Setup Indications (TCH) (Circuit Service)

Channel Requests (Circuit Service) = Channel Requests (MOC) + Channel

Requests (MTC) + Channel Requests (Emergency Call) + Channel

Requests (Call Re-establishment) + Channel Requests (Location

Updating)

5.2.2 Congestion Rate on SDCCH (All Channels Busy)

This topic describes the definition, type, unit, and associated original KPIs of the CongestionRate on SDCCH (All Channels Busy).

Table 5-2 Congestion Rate on SDCCH (All Channels Busy)

Name Congestion Rate on SDCCH (All Channels Busy)

Definition Congestion Rate on SDCCH (All Channels Busy) = Failed SDCCH

Seizures due to Busy SDCCH/SDCCH Seizure Requests x 100

Type Customization

Unit %

Associated

Original KPIs

Failed SDCCH Seizures due to Busy SDCCH = Failed Channel

Assignments due to Busy or Not Configured Channels in Immediate

Assignment Procedure (SDCCH) + Failed Internal Intra-Cell Handovers

(Channel Unavailable) (SDCCH) + Failed Incoming Internal Inter-Cell

Handovers (Channel Unavailable) (SDCCH) + Failed Incoming External

Inter-Cell Handovers (Channel Unavailable) (SDCCH)

SDCCH Seizure Requests = Channel Assignment Requests in Immediate

Assignment Procedure (SDCCH) + Internal Intra-Cell Handover Requests

(SDCCH) + Incoming Internal Inter-Cell Handover Requests (SDCCH)

(900/850–900/850) + Incoming Internal Inter-Cell Handover Requests

(SDCCH) (1800/1900–1800/1900) + Incoming Internal Inter-CellHandover Requests (SDCCH) (900/850–1800/1900) + Incoming Internal

Inter-Cell Handover Requests (SDCCH) (1800/1900–900/850) +

Incoming External Inter-Cell Handover Requests (SDCCH) (900/850–

900/850) + Incoming External Inter-Cell Handover Requests (SDCCH)

(1800/1900–1800/1900) + Incoming External Inter-Cell Handover

Requests (SDCCH) (900/850–1800/1900) + Incoming External Inter-Cell

Handover Requests (SDCCH) (1800/1900–900/850)

5.2.3 SDCCH Call Drop Rate

This topic describes the definition, type, unit, and associated original KPIs of the SDCCH CallDrop Rate.






Table 5-3 SDCCH Call Drop Rate

Name SDCCH Call Drop Rate

Definition SDCCH Call Drop Rate = Call Drops on SDCCH/Successful SDCCH Seizures

x 100%

Type Customization

Unit %

Associated

Original

KPIs

Call Drops on SDCCH = Call Drops on Radio Interface (SDCCH) + Call Drops

due to No MRs from MS for a Long Time (SDCCH) + Call Drops due to Abis

Terrestrial Link Failure (SDCCH) + Call Drops due to Equipment Failure

(SDCCH) + Call Drops due to Forced Handover (SDCCH)

Successful SDCCH Seizures = Channel Activation Attempts in Immediate

Assignment Procedure (SDCCH) – CHAN ACTIV NACK Messages Sent by

BTS in Immediate Assignment Procedure (SDCCH) – Channel Activation

Timeouts in Immediate Assignment Procedure (SDCCH) + Internal Intra-Cell

Handover Detection Messages Received by BSC (SDCCH) + Incoming Internal

Inter-Cell Handover Detection Messages Received by BSC (SDCCH) +

Incoming External Inter-Cell Handover Detection Messages Received by BSC

(SDCCH)

5.2.4 TCH Assignment Success Rate



Table 5-4 TCH Assignment Success Rate

Name TCH Assignment Success Rate

Definition TCH Assignment Success Rate = Successful Assignments/Assignment

Requests x 100%


Unit %







Associated

Original

KPIs

Successful Assignments = Assignment Requests – (Failed Assignments

(Signaling Channel) + Failed Assignments (MOC) (A Interface, Including

Directed Retry) + Failed Assignments (MTC) (A Interface, Including Directed

Retry) + Failed Assignments (Emergency Call) (A Interface, Including

Directed Retry) + Failed Assignments (Call Re-establishment) (A Interface,Including Directed Retry)+ Failed Mode Modify Attempts (MOC) (TCHF) +

Failed Mode Modify Attempts (MTC) (TCHF) + Failed Mode Modify

Attempts (Emergency Call) (TCHF) + Failed Mode Modify Attempts (Call

Re-establishment) (TCHF) + Failed Mode Modify Attempts (MOC) (TCHH)

+ Failed Mode Modify Attempts (MTC) (TCHH) + Failed Mode Modify

Attempts (Call Re-establishment) (TCHH))

Assignment Requests = Assignment Requests (Signaling Channel) +

Assignment Requests (TCHF Only) + Assignment Requests (TCHH Only) +

Assignment Requests (TCHF Preferred, Channel Type Unchangeable) +

Assignment Requests (TCHH Preferred, Channel Type Unchangeable) +

Assignment Requests (TCHF or TCHH, Channel Type Unchangeable) +

Assignment Requests (TCHF Preferred, Channel Type Changeable) +

Assignment Requests (TCHH Preferred, Channel Type Changeable) +

Assignment Requests (TCHF or TCHH, Channel Type Changeable)

5.2.5 Congestion Rate on TCH (All Channels Busy)


Rate on TCH (All Channels Busy).

Table 5-5 Congestion Rate on TCH (All Channels Busy)

Name Congestion Rate on TCH (All Channels Busy)

Definition Congestion Rate on TCH (All Channels Busy) = Failed TCH Seizures due to

Busy TCH (Signaling Channel) + TCH Seizure Requests (Signaling Channel)

+ Failed TCH Seizures due to Busy TCH per BSC (Traffic Channel) + Failed

TCH Seizures in TCH Handovers due to Busy TCH per BSC (Traffic Channel)/

(TCH Seizure Requests (Signaling Channel) + TCH Seizure Requests in TCH

Handovers (Traffic Channel)) x 100%

Type Customization

Unit %






Associated

Original

KPIs

TCH Seizure Requests (Signaling Channel) = Channel Assignment Requests

in Immediate Assignment Procedure (TCH) – Immediate Assignment

Commands (TCHF) – Immediate Assignment Commands (TCHH)

TCH Seizure Requests (Signaling Channel) = Assignment Requests (Signaling

Channel) + Assignment Requests (TCHF Only) + Assignment Requests(TCHH Only) + Assignment Requests (TCHF Preferred, Channel Type

Unchangeable) + Assignment Requests (TCHH Preferred, Channel Type

Unchangeable) + Assignment Requests (TCHF or TCHH, Channel Type

Unchangeable) + Assignment Requests (TCHF Preferred, Channel Type

Changeable) + Assignment Requests (TCHH Preferred, Channel Type

Changeable) + Assignment Requests (TCHF or TCHH, Channel Type

Changeable)

Failed TCH Seizures due to Busy TCH (Traffic Channel) = Failed Assignments

(Channel Unavailable)

Failed TCH Seizures in TCH Handovers due to Busy TCH (Traffic Channel)

= Failed Internal Intra-Cell Handovers (Channel Unavailable) (TCH) + FailedIncoming Internal Inter-Cell Handovers (Channel Unavailable) (TCH) + Failed

Incoming External Inter-Cell Handovers (Channel Unavailable) (TCH)


in Immediate Assignment Procedure (TCH)

TCH Seizure Requests in TCH Handovers (Traffic Channel) = Internal Intra-

Cell Handover Requests (TCH) + Incoming Internal Inter-Cell Handover

Requests (TCH) (900/850–900/850) + Incoming Internal Inter-Cell Handover

Requests (TCH) (1800/1900–1800/1900) + Incoming Internal Inter-Cell

Handover Requests (TCH) (900/850–1800/1900) + Incoming Internal Inter-

Cell Handover Requests (TCH) (1800/1900–900/850) + Incoming External

Inter-Cell Handover Requests (TCH) (900/850–900/850) + Incoming ExternalInter-Cell Handover Requests (TCH) (1800/1900–1800/1900) + Incoming

External Inter-Cell Handover Requests (TCH) (900/850–1800/1900) +

Incoming External Inter-Cell Handover Requests (TCH) (1800/1900–900/850)

5.2.6 Successful TCH Seizures

This topic describes the definition, type, unit, and associated original KPIs of the Successful

TCH Seizures.

Table 5-6 Successful TCH Seizures

Name Successful TCH Seizures

Definition TCH Seizure Success Rate = (Successful TCH Seizures (Signaling Channel)

+ Successful TCH Seizures (Traffic Channel) + Successful TCH Seizures in

TCH handovers (Traffic Channel))/(TCH Seizure Requests (Signaling

Channel) + TCH Seizure Requests (Traffic Channel) + TCH Seizure Requests

in TCH Handovers (Traffic Channel)) x 100%

Type Customization

Unit %







Associated

Original

KPIs

Successful TCH Seizures (Signaling Channel) = Channel Activation Attempts

in Immediate Assignment Procedure (TCHF) + Channel Activation Attempts

in Immediate Assignment Procedure (TCHH) – (CHAN ACTIV NACK

Messages Sent by BTS in Immediate Assignment Procedure (TCHF) + CHAN

ACTIV NACK Messages Sent by BTS in Immediate Assignment Procedure(TCHH) + Channel Activation Timeouts in Immediate Assignment Procedure

(TCHF) + Channel Activation Timeouts in Immediate Assignment Procedure

(TCHH))

Successful TCH Seizures (Traffic Channel) = Successful Assignments

(Signaling Channel) + Assignment Requests (TCHF Only) + Assignment

Requests (TCHH Only) + Assignment Requests (TCHF Preferred, Channel

Type Unchangeable) + Assignment Requests (TCHH Preferred, Channel Type





Changeable) – (Failed Assignments (MOC) (A Interface, Including Directed

Retry) + Failed Assignments (MTC) (A Interface, Including Directed Retry) +

Failed Assignments (Emergency Call) (A Interface, Including Directed Retry)

+ Failed Assignments (Call Re-establishment) (A Interface, Including Directed

Retry) + Failed Mode Modify Attempts (MOC) (TCHF) + Failed Mode Modify

Attempts (MTC) (TCHF) + Failed Mode Modify Attempts (Emergency Call)

(TCHF) + Failed Mode Modify Attempts (Call Re-establishment) (TCHF) +

Failed Mode Modify Attempts (MOC) (TCHH) + Failed Mode Modify

Attempts (MTC) (TCHH) + Failed Mode Modify Attempts (Call Re-

establishment) (TCHH) + Failed Assignments (Signaling Channel))

Successful TCH Handovers (Traffic Channel) = Internal Intra-Cell Handover

Detection Messages Received by BSC (TCHF) + Internal Intra-Cell Handover Detection Messages Received by BSC (TCHH) + Incoming Internal Inter-Cell

Handover Detection Messages Received by BSC (TCHF) + Incoming Internal

Inter-Cell Handover Detection Messages Received by BSC (TCHH) +

Incoming External Inter-Cell Handover Detection Messages Received by BSC

(TCHF) + Incoming External Inter-Cell Handover Detection Messages

Received by BSC (TCHH)


in Immediate Assignment Procedure (TCH)

TCH Seizure Requests (Signaling Channel) = Assignment Requests (Signaling

Channel) + Assignment Requests (TCHF Only) + Assignment Requests

(TCHH Only) + Assignment Requests (TCHF Preferred, Channel TypeUnchangeable) + Assignment Requests (TCHH Preferred, Channel Type





Changeable)

TCH Seizure Requests in TCH Handovers (Traffic Channel) = Internal Intra-

Cell Handover Requests (TCH) + Incoming Internal Inter-Cell Handover

Requests (TCH) (900/850–900/850) + Incoming Internal Inter-Cell Handover

Requests (TCH) (1800/1900–1800/1900) + Incoming Internal Inter-Cell

Handover Requests (TCH) (900/850–1800/1900) + Incoming Internal Inter-

Cell Handover Requests (TCH) (1800/1900–900/850) + Incoming External






Inter-Cell Handover Requests (TCH) (900/850–900/850) + Incoming External

Inter-Cell Handover Requests (TCH) (1800/1900–1800/1900) + Incoming

External Inter-Cell Handover Requests (TCH) (900/850–1800/1900) +

Incoming External Inter-Cell Handover Requests (TCH) (1800/1900–900/850)

5.2.7 Call Setup Success Rate

This topic describes the definition, type, unit, and associated original KPIs of the Call Setup

Success Rate.

Table 5-7 Call Setup Success Rate

Name Call Setup Success Rate

Definition Call Setup Success Rate = Successful Assignments/(Call Setup Indications

(MOC Non SMS) (SDCCH) + Call Setup Indications (MTC) (SDCCH) +Call Setup Indications (Emergency Call) (SDCCH) + Call Setup

Indications (Call Re-establishment) (SDCCH) + Call Setup Indications

(MOC Non SMS) (TCHF) + Call Setup Indications (MTC) (TCHF) + Call

Setup Indications (Emergency Call) (TCHF) + Call Setup Indications (Call

Re-establishment) (TCHF) + Call Setup Indications (MOC Non SMS)

(TCHH) + Call Setup Indications (MTC) (TCHH) + Call Setup Indications

(Call Re-establishment) (TCHH) – Downlink Point-to-Point Short

Messages on SDCCH)) x 100%

Type Customization

Unit %

Associated

Original KPIs

For details about Successful Assignments, refer to the topic on TCH


5.2.8 BSS Call Setup Success Rate

This topic describes the definition, type, unit, and associated original KPIs of the BSS Call Setup

Success Rate.

Table 5-8 BSS Call Setup Success Rate

Name BSS Call Setup Success Rate

Definition Call Setup Success Rate = ((Immediate Assignment Success Rate x

Assignment Success Rate) x (1 – SDCCH Call Drop Rate)) x 100%

Type Customization

Unit %

Associated

Original KPIs

For details about Immediate Assignment Success Rate, refer to the topic

on Immediate Assignment Success Rate. For details about Assignment

Success Rate, refer to the topic on TCH Assignment Success Rate. For

details about SDCCH Call Drop Rate, refer to the topic on SDCCH Call

Drop Rate.







5.2.9 Paging Overload Rate

This topic describes the definition, type, unit, and associated original KPIs of the Paging

Overload Rate.

Table 5-9 Paging Overload Rate

Name Paging Overload Rate

Definition Paging Overload Rate = (PCH Overloads due to CS Service Counted

Through the Indications from the Abis Interface + PCH Overloads due

to PS Service Counted through the Indications from the Abis Interface)/

(Paging Requests on the Abis Interface (CS Service) + Paging Requests

on the Abis Interface (PS Service)) x 100%

Type Customization

Unit %

5.3 CS Retainability KPIs

This topic describes the CS Retainability KPIs that indicate the ratio of moving MSs to all MSs,

the moving fr equency, and the success rate of handovers on the move. In addition, these KPIs

indicate the capability of providing continuous services. A low handover success rate may lead

to a high call drop rate. A low success rate leads to low user satisfaction.

5.3.1 TCH Call Drop Rate (Including Handover)

This topic describes the definition, type, unit, and associated original KPIs of the TCH Call DropRate (Including Handover).

5.3.2 TCH Call Drop Rate (Excluding Handover)

This topic describes the definition, type, unit, and associated original KPIs of the TCH Call Drop

Rate (Excluding Handover).

5.3.3 Traffic Call Drop Rate

This topic describes the definition, type, unit, and associated original KPIs of the Traffic Call

Drop Rate.

5.3.4 TCH Radio Loss Rate

This topic describes the definition, type, unit, and associated original KPIs of the TCH Radio

Loss Rate.

5.3.5 TCH Handover Loss Rate

This topic describes the definition, type, unit, and associated original KPIs of the TCH Handover

Loss Rate.

5.3.6 Handover Success Rate

This topic describes the definition, type, unit, and associated original KPIs of the Handover

Success Rate.

5.3.7 Radio Handover Success Rate

This topic describes the definition, type, unit, and associated original KPIs of the Radio Handover

Success Rate.

5.3.8 Internal Handover Success Rate






This topic describes the definition, type, unit, and associated original KPIs of the Internal

Handover Success Rate.

5.3.9 External Incoming Cell Handover Success Rate

This topic describes the definition, type, unit, and associated original KPIs of the External

Incoming Cell Handover Success Rate.

5.3.10 External Outgoing Cell Handover Success Rate


Outgoing Cell Handover Success Rate.

5.3.11 Intra-BSC Radio Handover Success Rate

This topic describes the definition, type, unit, and associated original KPIs of the Intra-BSC

Radio Handover Success Rate.

5.3.12 External Incoming Cell Radio Handover Success Rate


Incoming Cell Radio Handover Success Rate.

5.3.13 External Outgoing Cell Radio Handover Success Rate


Outgoing Cell Radio Handover Success Rate.

5.3.14 Dual-Band Handover Success Rate (900M/850M–1800M/1900M)

This topic describes the definition, type, unit, and associated original KPIs of the Dual-Band

Handover Success Rate (900M/850M–1800M/1900M).

5.3.15 Dual-Band Handover Success Rate (1800M/1900M–900M/850M)



5.3.16 Call Complete Success RateThis topic describes the definition, type, unit, and associated original KPIs of the Call Complete

Success Rate.

5.3.1 TCH Call Drop Rate (Including Handover)


Rate (Including Handover).

Table 5-10 TCH Call Drop Rate (Including Handover)

Name TCH Call Drop Rate (Including Handover)

Definition TCH Call Drop Rate = Call Drops on TCH/(Successful TCH Seizures

(Signaling Channel) + Successful TCH Seizures (Traffic Channel) +

Successful TCH Seizures in TCH Handovers (Traffic Channel)) x 100%

Type Customization

Unit %







Associated

Original

KPIs

Call Drops on TCH = Call Drops on Radio Interface in Stable State (TCH) +

Call Drops on Radio Interface in Handover State (TCH) + Call Drops due to

No MRs from MS for a Long Time (TCH) + Call Drops due to Abis Terrestrial

Link Failure (TCH) + Call Drops due to Equipment Failure (TCH) + Call

Drops due to Forced Handover (TCH)For details about Successful TCH Seizures, refer to the topic on Successful

TCH Seizures.

5.3.2 TCH Call Drop Rate (Excluding Handover)


Rate (Excluding Handover).

Table 5-11 TCH Call Drop Rate (Excluding Handover)

Name TCH Call Drop Rate (Excluding Handover)

Definition TCH Call Drop Rate = Call Drops on TCH in Stable State (Traffic

Channel)/Successful TCH Seizures (Traffic Channel)) x 100%

Type Customization

Unit %

Associated

Original KPIs

Refer to the topic on TCH Call Drop Rate (Including Handover).

5.3.3 Traffic Call Drop Rate

This topic describes the definition, type, unit, and associated original KPIs of the Traffic Call

Drop Rate.

Table 5-12 Traffic Call Drop Rate

Name Traffic Call Drop Rate

Definition Traffic Call Drop Rate = 60 x Traffic Volume on TCH/Call Drops on TCH

Type Customization

Unit None.

Associated

Original KPIs

Traffic Volume on TCH = Mean Number of Busy TCHs (TCHF) (900/850

Cell) + Mean Number of Busy TCHs (TCHF) (1800/1900 Cell) + Mean

Number of Busy TCHs (TCHH) (900/850 Cell) + Mean Number of Busy

TCHs (TCHH) (1800/1900 Cell)

For details about Call Drops on TCH, refer to the topic on TCH Call Drop

Rate (Including Handover).






5.3.4 TCH Radio Loss Rate

This topic describes the definition, type, unit, and associated original KPIs of the TCH Radio

Loss Rate.

Table 5-13 TCH Radio Loss Rate

Name TCH Radio Loss Rate

Definition TCH Radio Loss Rate = (Call Drops on Radio Interface in Stable State + Call

Drops due to ERR IND Received on TCHF in Stable State (T200 Expired)

(Signaling Channel) + Call Drops due to ERR IND Received on TCHF in Stable

State (Unsolicited DM Response) (Signaling Channel) + Call Drops due to

ERR IND Received on TCHF in Stable State (Sequence Error) (Signaling

Channel) + Call Drops due to ERR IND Received on TCHH in Stable State

(T200 Expired) (Signaling Channel) + Call Drops due to ERR IND Received

on TCHH in Stable State (Unsolicited DM Response) (Signaling Channel) +Call Drops due to ERR IND Received on TCHH in Stable State (Sequence

Error) (Signaling Channel) + Call Drops due to CONN FAIL Received on

TCHF in Stable State (Radio Link Failure) (Signaling Channel) + Call Drops

due to CONN FAIL Received on TCHF in Stable State (HO Access Failure)

(Signaling Channel) + Call Drops due to CONN FAIL Received on TCHF in

Stable State (OM Intervention) (Signaling Channel) + Call Drops due to CONN

FAIL Received on TCHF in Stable State (Radio Resource Unavailable)

(Signaling Channel) + Call Drops due to CONN FAIL Received on TCHF in

Stable State (Other Causes) (Signaling Channel) + Call Drops due to CONN

FAIL Received on TCHH in Stable State (Radio Link Failure) (Signaling

Channel) + Call Drops due to CONN FAIL Received on TCHH in Stable State

(HO Access Failure) (Signaling Channel) + Call Drops due to CONN FAILReceived on TCHH in Stable State (OM Intervention) (Signaling Channel) +

Call Drops due to CONN FAIL Received on TCHH in Stable State (Radio

Resource Unavailable) (Signaling Channel) + Call Drops due to CONN FAIL

Received on TCHH in Stable State (Other Causes) (Signaling Channel) + Call

Drops due to REL IND Received on TCHF (Signaling Channel) + Call Drops

due to REL IND Received on TCHH (Signaling Channel))/(Successful TCH

Seizures (Signaling Channel) + Successful TCH Seizures (Traffic Channel) +

Successful TCH Seizures in TCH handovers (Traffic Channel)) x 100%

Type Customization

Unit %

Associated

Original

KPIs

Call Drops on Radio Interface in Stable State (TCH) = Call Drops on TCH in

Stable State (Error Indication) + Call Drops on TCH in Stable State

(Connection Failure) + Call Drops on TCH in Stable State (Release Indication)

For details about Successful TCH Seizures, refer to the topic on Successful

TCH Seizures.

5.3.5 TCH Handover Loss Rate

This topic describes the definition, type, unit, and associated original KPIs of the TCH Handover

Loss Rate.







Table 5-14 TCH Handover Loss Rate

Name TCH Handover Loss Rate

Definition TCH Handover Loss Rate = (Failed Internal Intra-Cell Handovers

(Timer Expired) (TCHF) (Signaling Channel) + Failed Internal Intra-Cell Handovers (Timer Expired) (TCHH) (Signaling Channel) +

Failed Internal Intra-Cell Handovers (Timer Expired) (TCHF) (Traffic

Channel) + Failed Internal Intra-Cell Handovers (Timer Expired)

(TCHH) (Traffic Channel) + Failed Outgoing Internal Inter-Cell

Handovers (Timer Expired) (TCHF) (Signaling Channel) + Failed

Outgoing Internal Inter-Cell Handovers (Timer Expired) (TCHH)

(Signaling Channel) + Call Drops in TCH Handovers (Traffic

Channel))/Successful TCH Seizures (Traffic Channel)) x 100%

Type Customization

Unit %

Associated Original

KPIs

Refer to the topic on TCH Call Drop Rate (Including Handover).

5.3.6 Handover Success Rate

This topic describes the definition, type, unit, and associated original KPIs of the Handover

Success Rate.

Table 5-15 Handover Success Rate

Name Handover Success Rate

Definition Handover Success Rate = (Successful Internal Intra-Cell Handovers +

Successful Internal Incoming Cell Handovers per BSC + Successful External

Incoming Cell Handovers per BSC + Successful External Outgoing Cell

Handovers per BSC)/(Intra-Cell Handover Requests + Internal Incoming Cell

Handover Requests per BSC + External Incoming Cell Handover Requests per

BSC + External Outgoing Cell Handover Requests per BSC) x 100%

Type Customization

Unit %






Associated

Original

KPIs

Successful Internal Intra-Cell Handovers = Internal Intra-Cell Handover

Requests per BSC (SDCCH) + Internal Intra-Cell Handover Requests per BSC

(TCH) – Failed Internal Intra-Cell Handovers (SDCCH) – Failed Internal Intra-

Cell Handovers (TCH)

Intra-Cell Handover Requests = Internal Intra-Cell Handover Requests per BSC(SDCCH) + Internal Intra-Cell Handover Requests per BSC (TCH)

Successful Internal Incoming Cell Handovers per BSC = Internal Incoming

Cell Handover Requests per BSC (SDCCH) (900/850–900/850) + Internal

Incoming Cell Handover Requests per BSC (SDCCH) (1800/1900–1800/1900)

+ Internal Incoming Cell Handover Requests per BSC (SDCCH) (900/850–

1800/1900) + Internal Incoming Cell Handover Requests per BSC (SDCCH)

(1800/1900–900/850) + Internal Incoming Cell Handover Requests per BSC

(TCH) (900/850–900/850) + Internal Incoming Cell Handover Requests per

BSC (TCH) (1800/1900–1800/1900) + Internal Incoming Cell Handover

Requests per BSC (TCH) (900/850–1800/1900) + Internal Incoming Cell

Handover Requests per BSC (TCH) (1800/1900–900/850) – Failed IncomingInternal Inter-Cell Handovers (SDCCH) (900/850–900/850) – Failed Incoming

Internal Inter-Cell Handovers (SDCCH) (1800/1900–1800/1900) – Failed

Incoming Internal Inter-Cell Handovers (SDCCH) (900/850–1800/1900) –

Failed Incoming Internal Inter-Cell Handovers (SDCCH) (1800/1900–

900/850) – Failed Incoming Internal Inter-Cell Handovers (TCH) (900/850–

900/850) – Failed Incoming Internal Inter-Cell Handovers (TCH) (1800/1900–

1800/ 1900) – Failed Incoming Internal Inter-Cell Handovers (TCH) (900/850–

1800/1900) – Failed Incoming Internal Inter-Cell Handovers (TCH)

(1800/1900-900/850))

Incoming Internal Inter-Cell Handover Requests = Incoming Internal Inter-Cell

Handover Requests (SDCCH) (900/850–900/850) + Incoming Internal Inter-

Cell Handover Requests (SDCCH) (1800/1900–1800/1900) + IncomingInternal Inter-Cell Handover Requests (SDCCH) (900/850–1800/1900) +

Incoming Internal Inter-Cell Handover Requests (SDCCH) (1800/1900–

900/850) + Incoming Internal Inter-Cell Handover Requests (TCH) (900/850–

900/850) + Incoming Internal Inter-Cell Handover Requests (TCH)

(1800/1900–1800/1900) + Incoming Internal Inter-Cell Handover Requests

(TCH) (900/850–1800/1900) + Incoming Internal Inter-Cell Handover

Requests (TCH) (1800/1900–900/850)

Successful External Incoming Cell Handovers per BSC = Incoming External

Inter-Cell Handover Requests (SDCCH) (900/850–900/850) + Incoming

External Inter-Cell Handover Requests (SDCCH) (1800/1900–1800/1900) +

Incoming External Inter-Cell Handover Requests (SDCCH) (900/850– 1800/1900) + Incoming External Inter-Cell Handover Requests (SDCCH)

(1800/1900–900/850) + Incoming External Inter-Cell Handover Requests

(TCH) (900/850–900/850) + Incoming External Inter-Cell Handover Requests

(TCH) (1800/1900–1800/1900) + Incoming External Inter-Cell Handover

Requests (TCH) (900/850–1800/1900) + Incoming External Inter-Cell

Handover Requests (TCH) (1800/1900–900/850) – Failed Incoming External

Inter-Cell Handovers (SDCCH) (900/850–900/850) + Failed Incoming

External Inter-Cell Handovers (SDCCH) (1800/1900–1800/1900) + Failed

Incoming External Inter-Cell Handovers (SDCCH) (900/850–1800/1900) +

Failed Incoming External Inter-Cell Handovers (SDCCH) (1800/1900–

900/850) + [Failed Incoming External Inter-Cell Handovers (TCH) (900/850–

900/850) + Failed Incoming External Inter-Cell Handovers (TCH)







(1800/1900–1800/1900) + Failed Incoming External Inter-Cell Handovers

(TCH) (900/850–1800/1900) + Failed Incoming External Inter-Cell Handovers

(TCH) (1800/1900–900/850))

External Incoming Cell Handover Requests per BSC = Incoming External

Inter-Cell Handover Requests (SDCCH) (900/850–900/850) + IncomingExternal Inter-Cell Handover Requests (SDCCH) (1800/1900–1800/1900) +




(TCH) (900/850–900/850) + Incoming External Inter-Cell Handover Requests

(TCH) (1800/1900–1800/1900) + Incoming External Inter-Cell Handover

Requests (TCH) (900/850–1800/1900) + Incoming External Inter-Cell

Handover Requests (TCH) (1800/1900–900/850)

Successful Outgoing External Inter-Cell Handovers = Outgoing External Inter-

Cell Handover Requests – Failed Outgoing External Inter-Cell Handovers

Failed Outgoing External Inter-Cell Handovers (SDCCH) (Excluding DirectedRetry) (900/850–1800/1900) + Failed Outgoing External Inter-Cell Handovers

(SDCCH) (Excluding Directed Retry) (1800/1900–900/850) + Failed Outgoing

External Inter-Cell Handovers (TCHF) (Excluding Directed Retry) (900/850–

900/850) + Failed Outgoing External Inter-Cell Handovers (TCHF) (Excluding

Directed Retry) (1800/1900–1800/1900) + Failed Outgoing External Inter-Cell

Handovers (TCHF) (Excluding Directed Retry) (900/850–1800/1900) + Failed

Outgoing External Inter-Cell Handovers (TCHF) (Excluding Directed Retry)

(1800/1900–900/850) + Failed Outgoing External Inter-Cell Handovers

(TCHH) (Excluding Directed Retry) (900/850–900/850) + Failed Outgoing

External Inter-Cell Handovers (TCHH) (Excluding Directed Retry)


(TCHH) (Excluding Directed Retry) (900/850–1800/1900) + Failed OutgoingExternal Inter-Cell Handovers (TCHH) (Excluding Directed Retry)


(Directed Retry) (900/850–900/850) + Failed Outgoing External Inter-Cell

Handovers (Directed Retry) (1800/1900–1800/1900) + Failed Outgoing

External Inter-Cell Handovers (Directed Retry) (900/850–1800/1900) + Failed

Outgoing External Inter-Cell Handovers (Directed Retry) (1800/1900–

900/850)

Outgoing External Inter-Cell Handover Requests = Outgoing External Inter-

Cell Handover Requests (SDCCH) (Excluding Directed Retry) (900/850–

900/850) + Outgoing External Inter-Cell Handover Requests (SDCCH)

(Excluding Directed Retry) (1800/1900–1800/1900) + Outgoing ExternalInter-Cell Handover Requests (SDCCH) (Excluding Directed Retry) (900/850–

1800/1900) + Outgoing External Inter-Cell Handover Requests (SDCCH)

(Excluding Directed Retry) (1800/1900–900/850) + Outgoing External Inter-

Cell Handover Requests (TCHF) (Excluding Directed Retry) (900/850–

900/850) + Outgoing External Inter-Cell Handover Requests (TCHF)

(Excluding Directed Retry) (1800/1900–1800/1900) + Outgoing External

Inter-Cell Handover Requests (TCHF) (Excluding Directed Retry) (900/850–

1800/1900) + Outgoing External Inter-Cell Handover Requests (TCHF)


Cell Handover Requests (TCHH) (Excluding Directed Retry) (900/850–

900/850) + Outgoing External Inter-Cell Handover Requests (TCHH)

(Excluding Directed Retry) (1800/1900–1800/1900) + Outgoing External






Inter-Cell Handover Requests (TCHH) (Excluding Directed Retry) (900/850–

1800/1900) + Outgoing External Inter-Cell Handover Requests (TCHH)


Cell Handover Requests (Directed Retry) (900/850–900/850) + Outgoing

External Inter-Cell Handover Requests (Directed Retry) (1800/1900– 1800/1900) + Outgoing External Inter-Cell Handover Requests (Directed

Retry) (900/850–1800/1900) + Outgoing External Inter-Cell Handover

Requests (Directed Retry) (1800/1900–900/850)

5.3.7 Radio Handover Success Rate

This topic describes the definition, type, unit, and associated original KPIs of the Radio Handover

Success Rate.

Table 5-16 Radio Handover Success Rate

Name Radio Handover Success Rate

Definition Radio Handover Success Rate = (Successful Internal Intra-Cell Handovers per

BSC + Successful Internal Incoming Cell Handovers per BSC + Successful

External Incoming Cell Handovers per BSC + Successful External Outgoing

Cell Handovers per BSC)/(Intra-Cell Handover Commands + Incoming

Internal Inter-Cell Handover Responses per Cell + Incoming External Inter-

Cell Handover Responses + Outgoing External Inter-Cell Handover

Commands) x 100%

Type Customization

Unit %







Associated

Original

KPIs

Internal Intra-Cell Handover Commands per BSC = Internal Intra-Cell

Handover Detection Messages Received by BSC (SDCCH) + Internal Intra-

Cell Handover Detection Messages Received by BSC (TCHF) + Internal Intra-

Cell Handover Detection Messages Received by BSC (TCHH)

Incoming Internal Inter-Cell Handover Responses = Incoming Internal Inter-Cell Handover Responses (SDCCH) (900/850–900/850) + Incoming Internal

Inter-Cell Handover Responses (SDCCH) (1800/1900–1800/1900) +

Incoming Internal Inter-Cell Handover Responses (SDCCH) (900/850–

1800/1900) + Incoming Internal Inter-Cell Handover Responses (SDCCH)

(1800/1900–900/850) + Incoming Internal Inter-Cell Handover Responses

(TCHF) (900/850–900/850) + Incoming Internal Inter-Cell Handover

Responses (TCHF) (1800/1900–1800/1900) + Incoming Internal Inter-Cell

Handover Responses (TCHF) (900/850–1800/1900) + Incoming Internal Inter-

Cell Handover Responses (TCHF) (1800/1900–900/850) + Incoming Internal

Inter-Cell Handover Responses (TCHH)(900/850–900/850) + Incoming

Internal Inter-Cell Handover Responses (TCHH) (1800/1900–1800/1900) +

Incoming Internal Inter-Cell Handover Responses (TCHH) (900/850–

1800/1900) + Incoming Internal Inter-Cell Handover Responses (TCHH)

(1800/1900–900/850)

Incoming External Inter-Cell Handover Responses = Incoming External Inter-

Cell Handover Responses (SDCCH) (900/850–900/850) + Incoming External

Inter-Cell Handover Responses (SDCCH) (1800/1900–1800/1900) +

Incoming External Inter-Cell Handover Responses (SDCCH) (900/850–

1800/1900) + Incoming External Inter-Cell Handover Responses (SDCCH)

(1800/1900–900/850) + Incoming External Inter-Cell Handover Responses

(TCHF) (900/850–900/850) + Incoming External Inter-Cell Handover

Responses (TCHF) (1800/1900–1800/1900) + Incoming External Inter-Cell

Handover Responses (TCHF) (900/850–1800/1900) + Incoming ExternalInter-Cell Handover Responses (TCHF) (1800/1900–900/850) + Incoming

External Inter-Cell Handover Responses (TCHH)(900/850–900/850) +

Incoming External Inter-Cell Handover Responses (TCHH) (1800/1900–

1800/1900) + Incoming External Inter-Cell Handover Responses (TCHH)

(900/850–1800/1900) + Incoming External Inter-Cell Handover Responses

(TCHH) (1800/1900–900/850)

External Outgoing Cell Handover Commands per BSC = Outgoing External

Inter-Cell Handover Commands (SDCCH) (Excluding Directed Retry)

(900/850–900/850) + Outgoing External Inter-Cell Handover Commands

(SDCCH) (Excluding Directed Retry) (1800/1900–1800/1900) + Outgoing

External Inter-Cell Handover Commands (SDCCH) (Excluding Directed


Commands (SDCCH) (Excluding Directed Retry) (1800/1900–900/850) +

Outgoing External Inter-Cell Handover Commands (TCHF) (Excluding

Directed Retry) (900/850–900/850) + Outgoing External Inter-Cell Handover

Commands (TCHF) (Excluding Directed Retry) (1800/1900–1800/1900) +

Outgoing External Inter-Cell Handover Commands (TCHF) (Excluding

Directed Retry) (900/850–1800/1900) + Outgoing External Inter-Cell

Handover Commands (TCHF) (Excluding Directed Retry) (1800/1900–

900/850) + Outgoing External Inter-Cell Handover Commands (TCH)

(Excluding Directed Retry) (900/850–900/850) + Outgoing External Inter-Cell

Handover Commands (TCHH) (Excluding Directed Retry) (1800/1900–

1800/1900) + Outgoing External Inter-Cell Handover Commands (TCHH)







Cell Handover Commands (TCHH) (Excluding Directed Retry) (1800/1900–

900/850) + Outgoing External Inter-Cell Handover Commands (Directed


Commands (Directed Retry) (1800/1900–1800/1900) + Outgoing ExternalInter-Cell Handover Commands (Directed Retry) (900/850–1800/1900) +

Outgoing External Inter-Cell Handover Commands (Directed Retry)

(1800/1900–900/850)

For details about Successful Handovers, refer to the topic on Handover Success

Rate.

5.3.8 Internal Handover Success Rate

This topic describes the definition, type, unit, and associated original KPIs of the Internal

Handover Success Rate.

Table 5-17 Internal Handover Success Rate

Name Internal Handover Success Rate

Definition Internal Handover Success Rate = (Successful Internal Intra-Cell

Handovers per BSC + Successful Internal Incoming Cell Handovers

per BSC)/(Internal Intra-Cell Handover Requests per BSC + Internal

Incoming Cell Handover Requests per BSC) x 100%

Type Customization

Unit %

Associated Original

KPIs

Refer to the topic on Handover Success Rate.

5.3.9 External Incoming Cell Handover Success Rate


Incoming Cell Handover Success Rate.

Table 5-18 External Incoming Cell Handover Success Rate

Name External Incoming Cell Handover Success Rate

Definition External Incoming Cell Handover Success Rate = (Successful

External Incoming Cell Handovers per BSC/External Incoming Cell

Handover Requests per BSC) x 100%

Type Analysis

Unit %

Associated Original

KPIs








5.3.10 External Outgoing Cell Handover Success Rate


Outgoing Cell Handover Success Rate.

Table 5-19 External Outgoing Cell Handover Success Rate

Name External Outgoing Cell Handover Success Rate

Definition External Outgoing Cell Handover Success Rate = (Successful

External Outgoing Cell Handovers per BSC/External Outgoing

Cell Handover Requests per BSC) x 100%

Type Analysis

Unit %

Associated Original

KPIs


5.3.11 Intra-BSC Radio Handover Success Rate

This topic describes the definition, type, unit, and associated original KPIs of the Intra-BSC

Radio Handover Success Rate.

Table 5-20 Intra-BSC Radio Handover Success Rate

Name Intra-BSC Radio Handover Success Rate

Definition Intra-BSC Radio Handover Success Rate = (Successful Internal Intra-Cell

Handovers + Successful Internal Incoming Cell Handovers)/(Internal Intra-

Cell Handover Commands + Incoming Internal Inter-Cell Handover

Responses) x 100%

Type Customization

Unit %

Associated

Original KPIs

For details about Successful Internal Intra-Cell Handovers and Successful

Internal Incoming Cell Handovers, refer to the topic on Handover Success

Rate.

For details about Internal Intra-Cell Handover Commands and IncomingInternal Inter-Cell Handover Responses, refer to the topic on Radio Handover

Success Rate.

5.3.12 External Incoming Cell Radio Handover Success Rate


Incoming Cell Radio Handover Success Rate.






Table 5-21 External Incoming Cell Radio Handover Success Rate

Name External Incoming Cell Radio Handover Success Rate

Definition External Incoming Cell Radio Handover Success Rate = (Successful

External Incoming Cell Handovers per BSC/Incoming External Inter-CellHandover Responses per BSC) x 100%

Type Customization

Unit %

Associated

Original KPIs

For details about Successful External Incoming Cell Handovers per BSC,

refer to the topic on Handover Success Rate.

For details about Incoming External Inter-Cell Handover Responses per

BSC, refer to the topic on Radio Handover Success Rate.

5.3.13 External Outgoing Cell Radio Handover Success Rate


Outgoing Cell Radio Handover Success Rate.

Table 5-22 External Outgoing Cell Radio Handover Success Rate

Name External Outgoing Cell Radio Handover Success Rate

Definition External Outgoing Cell Radio Handover Success Rate = (Successful

External Outgoing Cell Handovers per BSC/External Outgoing Cell

Handover Commands per BSC) x 100%

Type Customization

Unit %

Associated

Original KPIs

For details about Successful External Outgoing Cell Handovers per BSC,

refer to the topic on Handover Success Rate.

For details about External Outgoing Cell Handover Commands per BSC,

refer to the topic on Radio Handover Success Rate.

5.3.14 Dual-Band Handover Success Rate (900M/850M–1800M/ 1900M)



Table 5-23 Dual-Band Handover Success Rate (900M/850M–1800M/1900M)

Name Dual-Band Handover Success Rate (900M/850M–1800M/1900M)

Definition Dual-Band Handover Success Rate = Successful Dual-Band Handovers

(900/850–1800/1900)/Dual-Band Handover Requests (900/850–

1800/1900)) x 100%







Type Customization

Unit %

Associated

OriginalKPIs

Successful Dual-Band Handovers (900/850–1800/1900) = Incoming Internal

Inter-Cell Handover Requests (SDCCH) (900/850–1800/1900) + IncomingInternal Inter-Cell Handover Requests (TCH) (900/850–1800/1900) +


1800/1900) + Incoming External Inter-Cell Handover Requests (TCH)

(900/850–1800/1900) + Outgoing External Inter-Cell Handover Requests


External Inter-Cell Handover Requests (TCHF) (Excluding Directed Retry)


(TCHH) (Excluding Directed Retry) (900/850–1800/1900) + Outgoing

External Inter-Cell Handover Requests (Directed Retry) (900/850–

1800/1900) – (Failed Incoming External Inter-Cell Handovers (SDCCH)

(900/850–1800/1900) + Failed Incoming External Inter-Cell Handovers

(TCH) (900/850–1800/1900) + Failed Incoming External Inter-Cell

Handovers (SDCCH) (900/850–1800/1900) + Failed Incoming External

Inter-Cell Handovers (TCH)(900/850–1800/1900) + Failed Outgoing

External Inter-Cell Handovers (SDCCH) (Excluding Directed Retry)


(TCHF) (Excluding Directed Retry) (900/850–1800/1900) + Failed Outgoing

External Inter-Cell Handovers (TCHH) (Excluding Directed Retry)


(Directed Retry) (900/850–1800/1900))

Dual-Band Handover Requests (900/850–1800/1900) = Incoming Internal

Inter-Cell Handover Requests (SDCCH) (900/850–1800/1900) + Incoming

Internal Inter-Cell Handover Requests (TCH) (900/850–1800/1900) +Incoming External Inter-Cell Handover Requests (SDCCH) (900/850–

1800/1900) + Incoming External Inter-Cell Handover Requests (TCH)



External Inter-Cell Handover Requests (TCHF) (Excluding Directed Retry)


(TCHH) (Excluding Directed Retry) (900/850–1800/1900) + Outgoing

External Inter-Cell Handover Requests (Directed Retry) (900/850–

1800/1900)

5.3.15 Dual-Band Handover Success Rate (1800M/1900M–900M/ 850M)



Table 5-24 Dual-Band Handover Success Rate (1800M/1900M–900M/850M)

Name Dual-Band Handover Success Rate (1800M/1900M–900M/850M)






Definition Dual-Band Handover Success Rate = Successful Dual-Band Handovers

(1800/1900–900/850)/Dual-Band Handover Requests (1800/1900–

900/850)) x 100%

Type Customization

Unit %

Associated

Original KPIs

Successful Dual-Band Handovers (1800/1900–900/850) = Incoming

Internal Inter-Cell Handover Requests (SDCCH) (1800/1900–900/850) +

Incoming Internal Inter-Cell Handover Requests (TCH) (1800/1900–



(TCH) (1800/ 1900–900/850) + Outgoing External Inter-Cell Handover

Requests (SDCCH) (Excluding Directed Retry) (1800/1900–900/850) +

Outgoing External Inter-Cell Handover Requests (TCHF) (Excluding


Handover Requests (TCHH) (Excluding Directed Retry) (1800/1900– 900/850) + Outgoing External Inter-Cell Handover Requests (Directed

Retry) (1800/1900–900/850) – (Failed Incoming External Inter-Cell

Handovers (SDCCH) (1800/1900–900/850) + Failed Incoming External

Inter-Cell Handovers (TCH) (1800/1900–900/850) + Failed Incoming

External Inter-Cell Handovers (SDCCH) (1800/1900–900/850) + Failed

Incoming External Inter-Cell Handovers (TCH)(1800/1900–900/850) +

Failed Outgoing External Inter-Cell Handovers (SDCCH) (Excluding

Directed Retry) (1800/1900–900/850) + Failed Outgoing External Inter-

Cell Handovers (TCHF) (Excluding Directed Retry) (1800/1900–

900/850) + Failed Outgoing External Inter-Cell Handovers (TCHH)

(Excluding Directed Retry) (1800/1900–900/850) + Failed Outgoing

External Inter-Cell Handovers (Directed Retry) (1800/1900–900/850))

Dual-Band Handover Requests (1800/1900–900/850) = Incoming Internal

Inter-Cell Handover Requests (SDCCH) (1800/1900–900/850) +

Incoming Internal Inter-Cell Handover Requests (TCH) (1800/1900–



(TCH) (1800/1900–900/850) + Outgoing External Inter-Cell Handover

Requests (SDCCH) (Excluding Directed Retry) (1800/1900–900/850) +

Outgoing External Inter-Cell Handover Requests (TCHF) (Excluding


Handover Requests (TCHH) (Excluding Directed Retry) (1800/1900–

900/850) + Outgoing External Inter-Cell Handover Requests (DirectedRetry) (1800/1900–900/850)

5.3.16 Call Complete Success Rate

This topic describes the definition, type, unit, and associated original KPIs of the Call Complete

Success Rate.

Table 5-25 Call Complete Success Rate

Name Call Complete Success Rate







Definition Call Complete Success Rate = (1-SDCCH Congestion Rate) x (1-

SDCCH Call Drop Rate) x (1-TCH Congestion Rate) x (1- TCH Call

Drop Rate) x 100%

Type Customization

Unit %

Associated

Original KPIs

SDCCH Congestion Rate (due to Busy SDCCH), SDCCH Call Drop

Rate, TCH Congestion Rate (due to Busy TCH), TCH Call Drop Rate

(Including Handover)

5.4 CS Resource Utilization KPIs

This topic describes the CS Resource Utilization KPIs that are used to monitor the load of hot

spot cells and the network. These KPIs can serve as references for capacity expansion. The traffic

volume KPIs help to obtain the ratio of busy-hour traffic to idle-hour traffic, to evaluate the

utilization of system resources, and to adjust charges. The equipment availability KPIs help to

know the running status of equipment, such as the running status of channels. If these KPIs are

low, equipment and transmission may be faulty.

5.4.1 TCH Tr affic Volume

This topic describes the definition, type, unit, and associated original KPIs of the TCH Traffic

Volume.

5.4.2 SDCCH Traffic Volume

This topic describes the definition, type, unit, and associated original KPIs of the SDCCH Traffic

Volume.

5.4.3 TCHH Traffic Volume

This topic describes the definition, type, unit, and associated original KPIs of the TCHH Traffic

Volume.

5.4.4 TCH Availability


Availability.

5.4.5 TRX Availability

This topic describes the definition, type, unit, and associated original KPIs of the TRX

Availability.

5.4.6 SDCCH Availability

This topic describes the definition, type, unit, and associated original KPIs of the SDCCH

Availability.

5.4.1 TCH Traffic Volume

This topic describes the definition, type, unit, and associated original KPIs of the TCH Traffic

Volume.

Table 5-26 TCH Traffic Volume

Name TCH Traffic Volume






Definition TCH Traffic Volume

Type Analysis

Unit Erlang

Associated

Original KPIs

TCH Traffic Volume = Traffic Volume of TCHs

5.4.2 SDCCH Traffic Volume

This topic describes the definition, type, unit, and associated original KPIs of the SDCCH Traffic

Volume.

Table 5-27 SDCCH Traffic Volume

Name SDCCH Traffic Volume

Definition SDCCH Traffic Volume

Type Analysis

Unit Erlang

Associated

Original KPIs

SDCCH Traffic Volume = Traffic Volume of Signaling Channels (SDCCH)

5.4.3 TCHH Traffic VolumeThis topic describes the definition, type, unit, and associated original KPIs of the TCHH Traffic

Volume.

Table 5-28 TCHH Traffic Volume

Name TCHH Traffic Volume

Definition TCHH Traffic Volume

Type Analysis

Unit Erlang

Associated

Original KPIs

TCH Traffic Volume = Traffic Volume of TCHs

5.4.4 TCH Availability


Availability.







Table 5-29 TCH Availability

Name TCH Availability

Definition TCH Availability = Mean Number of Available Channels (TCH)/Mean

Number of Dynamically Configured Channels (TCH) x 100%

Type Analysis

Unit %

Associated

Original KPIs

Mean Number of Available Channels (TCH) = Mean Number of

Available Channels (TCHF) + Mean Number of Available Channels

(TCHH)

Mean Number of Dynamically Configured Channels (TCH) = Mean

Number of Dynamically Configured Channels (TCHF) + Mean Number

of Dynamically Configured Channels (TCHH)

5.4.5 TRX Availability

This topic describes the definition, type, unit, and associated original KPIs of the TRX

Availability.

Table 5-30 TRX Availability

Name TRX Availability

NOTEThe TRX Availability helps to calculate the number of the available TRXs in the

BM.

Definition TRX Availability = Available TRXs/Activated TRXs x 100%

Type Analysis

Unit %

5.4.6 SDCCH Availability

This topic describes the definition, type, unit, and associated original KPIs of the SDCCH

Availability.

Table 5-31 SDCCH Availability

Name SDCCH Availability

Definition SDCCH Availability = Mean Number of Available Channels (SDCCH)/

Mean Number of Dynamically Configured Channels (SDCCH) x 100%

Type Analysis

Unit %






Associated

Original KPIs

Mean Number of Available Channels (SDCCH) = Mean Number of

Available Channels (SDCCH) (900/850 Cell) + Mean Number of Available

Channels (SDCCH) (1800/1900 Cell)

Mean Number of Dynamically Configured Channels (SDCCH) = Mean

Number of Dynamically Configured Channels (SDCCH) (900/850 Cell) +Mean Number of Dynamically Configured Channels (SDCCH) (1800/1900

Cell)

5.5 PS Throughput KPIs

This topic describes the PS Throughput KPIs that are used to monitor the load of hot spot cells

and the network and to obtain service models. These KPIs can serve as references for capacity

expansion. The PS Throughput KPIs help to obtain the busy-hour PS traffic and the idle-hour

PS traffic, to evaluate the utilization of system resources, and to facilitate service assessment of

carriers.

5.5.1 Uplink RLC Data Block Throughput

This topic describes the definition, type, unit, and associated original KPIs of the Uplink RLC

Data Block Throughput.

5.5.2 Downlink RLC Data Block Throughput

This topic describes the definition, type, unit, and associated original KPIs of the Downlink RLC


5.5.3 Uplink EGPRS RLC Data Block Throughput

This topic describes the definition, type, unit, and associated original KPIs of the Uplink EGPRS

RLC Data Block Throughput.

5.5.4 Downlink EGPRS RLC Data Block Throughput

This topic describes the definition, type, unit, and associated original KPIs of the Downlink

EGPRS RLC Data Block Throughput.

5.5.5 Uplink LLC PDU Throughput

This topic describes the definition, type, unit, and associated original KPIs of the Uplink LLC

PDU Throughput.

5.5.6 Downlink LLC PDU Throughput

This topic describes the definition, type, unit, and associated original KPIs of the Downlink LLC

PDU Throughput.

5.5.7 Downlink NS_PDU Mean ThroughputThis topic describes the definition, type, unit, and associated original KPIs of the Downlink

NS_PDU Mean Throughput.

5.5.8 Packet Data Rate on Air Interface (UL/DL)

This topic describes the definition, type, unit, and associated original KPIs of the Packet Data

Rate on Air Interface (UL/DL).

5.5.1 Uplink RLC Data Block Throughput









Table 5-32 Uplink RLC Data Block Throughput (KB)

Name Uplink RLC Data Block Throughput (KB)

Definition Total bytes of uplink GPRS RLC data blocks x 8/1024

Measurement

Range

Cell level

Associated

Original KPIs

Original KPIs:

[273]–[276]: Cell performance measurement [6] -> Performance

measurement for the uplink RLC data transmission [270] -> Number of

uplink RLC data blocks using CS1–CS4

Formula:

([273] x {23} + [274] x {34} + [275] x {40} + [276] x {54}) x {8}/{1024}


Unit KB

5.5.2 Downlink RLC Data Block Throughput



Table 5-33 Downlink RLC Data Block Throughput (KB)

Name Downlink RLC Data Block Throughput (KB)

Definition Total bytes of downlink GPRS RLC data blocks x 8/1024

Measuremen

t Range

Cell level

Associated

Original

KPIs

Original KPIs:


measurement for the downlink RLC data transmission [300] -> Number of

downlink RLC data blocks using CS1–CS4

Formula:

([303] x {23} + [304] x {34} + [305] x {40} + [306] x {54}) x {8}/{1024}


Unit KB

5.5.3 Uplink EGPRS RLC Data Block Throughput


RLC Data Block Throughput.






Table 5-34 Uplink EGPRS RLC Data Block Throughput (KB)

Name Uplink EGPRS RLC Data Block Throughput (KB)

Definition Total bytes of uplink EGPRS RLC data blocks x 8/1024

Measuremen

t Range

Cell level

Associated

Original

KPIs

Original KPIs:


measurement for the uplink EGPRS RLC data transmission [450] -> Number

of uplink EGPRS RLC data blocks using MCS1–MCS9

Formula:

([453] x {22} + [454] x {28} + [455] x {37} + [456] x {44} + [457] x {56}

+ [458] x {74} + [459] x {56} + [460] x {68} + [461] x {74}) x {8}/{1024}


Unit KB

5.5.4 Downlink EGPRS RLC Data Block Throughput


EGPRS RLC Data Block Throughput.

Table 5-35 Downlink EGPRS RLC Data Block Throughput (KB)

Name Downlink EGPRS RLC Data Block Throughput (KB)

Definition Total bytes of downlink EGPRS RLC data blocks x 8/1024

Measuremen

t Range

Cell level

Associated

Original

KPIs

Original KPIs:


measurement for the downlink EGPRS RLC data transmission [480] ->

Number of downlink EGPRS RLC data blocks using MCS1–MCS9

Formula:

([483] x {22} + [484] x {28} + [485] x {37} + [486] x {44} + [487] x {56}+ [488] x {74} + [489] x {56} + [490] x {68} + [491] x {74}) x {8}/{1024}


Unit KB

5.5.5 Uplink LLC PDU Throughput

This topic describes the definition, type, unit, and associated original KPIs of the Uplink LLC

PDU Throughput.







Table 5-36 Uplink LLC PDU Throughput

Name Uplink LLC PDU Throughput

Definition Total bytes of uplink LLC_PDUs x 8/1024

Measurement

Range

Cell level

Associated

Original KPIs

Original KPIs:

[213]: Cell performance measurement [6] -> Performance measurement

for the uplink LLC data transmission [210] -> Total bytes of uplink

LLC_PDUs sent

Formula:

[213] x {8}/{1024}


Unit KB

5.5.6 Downlink LLC PDU Throughput

This topic describes the definition, type, unit, and associated original KPIs of the Downlink LLC

PDU Throughput.

Table 5-37 Downlink LLC PDU Throughput

Name Downlink LLC PDU Throughput

Definition Total bytes of downlink LLC_PDUs x 8/1024

Measureme

nt Range

Cell level

Associated

Original

KPIs

Original KPIs:

[245]: Cell performance measurement [6] -> Performance measurement for

the downlink LLC data transmission [240] -> Total bytes of downlink

LLC_PDUs sent

Formula:

[245] x {8}/{1024}


Unit KB

5.5.7 Downlink NS_PDU Mean Throughput


NS_PDU Mean Throughput.






Table 5-38 Downlink NS_PDU Mean Throughput

Name Downlink NS_PDU Mean Throughput

Definition Total bytes of downlink NS PDUs x 8/(1024 x measurement period x 60)

Measureme

nt Range

Cell level

Associated

Original

KPIs

Original KPIs:

[654]: NS performance measurement [2] -> Performance measurement for NS

transmission [650] -> Total bytes of NS PDUs sent by NS sublayer

Formula:

[654] x {8}/({1024} x {Measurement period} x {60})


Unit KB

5.5.8 Packet Data Rate on Air Interface (UL/DL)

This topic describes the definition, type, unit, and associated original KPIs of the Packet Data

Rate on Air Interface (UL/DL).

Table 5-39 Packet Data Rate on Air Interface (UL/DL) (%)

Name Packet Data Rate on Air Interface (UL/DL) (%)

Definition (RLCPayloadUL + EGPRSRLCPayloadUL)/(RLCPayloadDL +EGPRSRLCPayloadDL)

Measureme

nt Range

Cell level

Associated

Original

KPIs

[273]–[276]: Cell performance measurement [6] -> Performance measurement

for the uplink RLC data transmission [270] -> Number of uplink RLC data

blocks using CS1–CS4


for the downlink RLC data transmission [300] -> Number of downlink RLC

data blocks using CS1–CS4

[453]–[461]: Cell performance measurement [6] -> Performance measurementfor the uplink EGPRS RLC data transmission [450] -> Number of uplink

EGPRS RLC data blocks using MCS1–MCS9


for the downlink EGPRS RLC data transmission [480] -> Number of downlink

EGPRS RLC data blocks using MCS1–MCS9


Unit KB







5.6 PS Transmission KPIs

This topic describes the PS Transmission KPIs that indicate the quality of radio transmissionlinks in a cell. If the RLC data block retransmission rate in a cell is high, the quality of the radio

transmission links in the cell is poor. Therefore, you need to take corresponding measures, such

as RF optimization.

5.6.1 Uplink RLC Data Retransmission Rate


Data Retransmission Rate.

5.6.2 Downlink RLC Data Retransmission Rate



5.6.3 Uplink EGPRS RLC Data Retransmission Rate


RLC Data Retransmission Rate.

5.6.4 Downlink EGPRS RLC Data Retransmission Rate


EGPRS RLC Data Retransmission Rate.

5.6.1 Uplink RLC Data Retransmission Rate



Table 5-40 Uplink RLC Data Retransmission Rate (%)

Name Uplink RLC Data Retransmission Rate (%)

Definition 1 – Number of uplink RLC data blocks received by the BSS/Number of uplink

RLC data blocks sent by the MS

Measuremen

t Range

Cell level

Associated

OriginalKPIs

Original KPIs:


the uplink RLC data transmission [270] -> Total number of uplink RLC data

blocks


measurement for the uplink RLC data transmission [270] -> Number of uplink

RLC data blocks using CS1–CS4 received (%)

Formula:

(1 - ([277] + [278] + [279] + [280])/[271]) x {100}


Unit %






5.6.2 Downlink RLC Data Retransmission Rate



Table 5-41 Downlink RLC Data Retransmission Rate (%)

Name Downlink RLC Data Retransmission Rate (%)

Definition 1 – Number of downlink RLC data blocks received by the MS/Number of

downlink RLC data blocks sent by the BSS

Measurement

Range

Cell level

Associated

Original KPIs

Original KPIs:


the downlink RLC data transmission [300] -> Total number of downlink RLC data blocks


measurement for the downlink RLC data transmission [300] -> Number of

downlink RLC data blocks using CS1–CS4 received (%)

Formula:

(1 - ([307] + [308] + [309] + [310]) / [301]) x {100}


Unit %

5.6.3 Uplink EGPRS RLC Data Retransmission Rate


RLC Data Retransmission Rate.

Table 5-42 Uplink EGPRS RLC Data Retransmission Rate (%)

Name Uplink EGPRS RLC Data Retransmission Rate (%)

Definition 1 – Number of uplink EGPRS RLC data blocks received by the BSS/

Number of uplink EGPRS RLC data blocks sent by the MS

Measurement

Range

Cell level







Associated

Original KPIs

Original KPIs:


the uplink EGPRS RLC data transmission [450] -> Total number of uplink

EGPRS RLC data blocks


measurement for the uplink EGPRS RLC data transmission [450] ->

Number of uplink EGPRS RLC data blocks using MCS1–MCS9 received

(%)

Formula:

(1 – ([462] + [463] + [464] + [465] + [466] + [467] + [468] + [469] + [470])/

[451]) x {100}


Unit KB

5.6.4 Downlink EGPRS RLC Data Retransmission Rate


EGPRS RLC Data Retransmission Rate.

Table 5-43 Downlink EGPRS RLC Data Retransmission Rate (%)

Name Downlink EGPRS RLC Data Retransmission Rate (%)

Definition 1 – Number of downlink EGPRS RLC data blocks received by the MS/Number

of downlink EGPRS RLC data blocks sent by the BSS

Measurem

ent Range

Cell level

Associated

Original

KPIs

Original KPIs:

[481]: Cell performance measurement [6] -> Performance measurement for the

downlink EGPRS RLC data transmission [480] -> Total number of downlink

EGPRS RLC data blocks


for the downlink EGPRS RLC data transmission [480] -> Number of downlink

EGPRS RLC data blocks using MCS1–MCS9 received (%)

Formula:(1 - ([492] + [493] + [494] + [495] + [496] + [497] + [498] + [499] + [500])/

[481]) x {100}


Unit KB

5.7 PS Accessibility KPIs

This topic describes the PS Accessibility KPIs that indicate whether MSs can easily access cells.

Poor PS Accessibility KPIs directly affect user satisfaction.






5.7.1 Uplink Assignment Success Rate

This topic describes the definition, type, unit, and associated original KPIs of the Uplink


5.7.2 Downlink Assignment Success Rate

This topic describes the definition, type, unit, and associated original KPIs of the Downlink Assignment Success Rate.

5.7.3 Mean Interval of Packet Access Requests on CCCH

This topic describes the definition, type, unit, and associated original KPIs of the Mean Interval

of Packet Access Requests on CCCH.

5.7.4 Uplink TBF Congestion Rate

This topic describes the definition, type, unit, and associated original KPIs of the Uplink TBF

Congestion Rate.

5.7.5 Downlink TBF Congestion Rate

This topic describes the definition, type, unit, and associated original KPIs of the Downlink TBF

Congestion Rate.

5.7.6 Uplink EGPRS TBF Congestion Rate


TBF Congestion Rate.

5.7.7 Downlink EGPRS TBF Congestion Rate


EGPRS TBF Congestion Rate.

5.7.1 Uplink Assignment Success Rate

This topic describes the definition, type, unit, and associated original KPIs of the Uplink Assignment Success Rate.

Table 5-44 Uplink Assignment Success Rate

Name Uplink Assignment Success Rate

Definition Number of successful uplink TBF establishment/Number of uplink TBF

establishment attempts

Measurement

Range

Cell level

Associated

Original KPIs

Original KPIs:


the uplink TBF establishment and release [150] -> Number of uplink TBF



the uplink TBF establishment and release [150] -> Number of successful

uplink TBF establishment

Formula:

([152]/[151]) x {100}








Associated

Original

KPIs

Original KPIs:


packet access on the CCCH -> Number of packet channel requests received on

CCCH

Formula:

{Measurement period} x {60}/[41]


Unit Second

5.7.4 Uplink TBF Congestion Rate

This topic describes the definition, type, unit, and associated original KPIs of the Uplink TBF

Congestion Rate.

Table 5-47 Uplink TBF congestion rate (%)

Name Uplink TBF congestion rate (%)

Definition (Number of uplink TBF establishment failures due to no channel + Number

of uplink TBF abnormal release due to no channel)/Number of uplink TBF


Measurement

Range

Cell level

AssociatedOriginal KPIs Original KPIs:[151]: Cell performance measurement [6] -> Performance measurement for





establishment failures due to no channel



abnormal release due to no channel

Formula:

([153] + [160])/[151] x {100}


Unit %

5.7.5 Downlink TBF Congestion Rate

This topic describes the definition, type, unit, and associated original KPIs of the Downlink TBF

Congestion Rate.







Table 5-48 Downlink TBF congestion rate (%)

Name Downlink TBF congestion rate (%)

Definition (Number of downlink TBF establishment failures due to no channel +

Number of downlink TBF abnormal release due to no channel)/Number of downlink TBF establishment attempts

Measurement

Range

Cell level

Associated

Original KPIs

Original KPIs:


the downlink TBF establishment and release [180] -> Number of downlink

TBF establishment attempts



establishment failures due to no channel



abnormal release due to no channel

Formula:

([183] + [189])/[181] x {100}


Unit %

5.7.6 Uplink EGPRS TBF Congestion Rate


TBF Congestion Rate.

Table 5-49 Uplink EGPRS TBF Congestion Rate (%)

Name Uplink EGPRS TBF Congestion Rate (%)

Definition (Number of uplink EGPRS TBF establishment failures due to no channel +

Number of uplink EGPRS TBF abnormal release due to no channel)/Number

of uplink EGPRS TBF establishment attempts

Measureme

nt Range

Cell level






Associated

Original

KPIs

Original KPIs:


the uplink EGPRS TBF establishment and release [410] -> Number of uplink

EGPRS TBF establishment attempts



EGPRS TBF establishment failures due to no channel



EGPRS TBF abnormal release due to no channel

Formula:

([413] + [420])/[411] x {100}


Unit %

5.7.7 Downlink EGPRS TBF Congestion Rate


EGPRS TBF Congestion Rate.

Table 5-50 Downlink EGPRS TBF Congestion Rate (%)

Name Downlink EGPRS TBF Congestion Rate (%)

Definition (Number of downlink EGPRS TBF establishment failures due to no channel + Number of downlink EGPRS TBF abnormal release due to no channel)/Number

of downlink EGPRS TBF establishment attempts

Measurem

ent Range

Cell level

Associated

Original

KPIs

Original KPIs:


downlink EGPRS TBF establishment and release [430] -> Number of downlink

EGPRS TBF establishment attempts


downlink EGPRS TBF establishment and release [430] -> Number of downlink EGPRS TBF establishment failures due to no channel


downlink EGPRS TBF establishment and release [430] -> Number of downlink

EGPRS TBF abnormal release due to no channel

Formula:

([433] + [439])/[431] x {100}


Unit %







5.8 PS Resource Utilization KPIs

This topic describes the PS Resource Utilization KPIs that indicate the utilization of the network

resource and the busy states of services. Thus, these KPIs can be used to guide network

expansion.

5.8.1 Uplink PDTCH/PACCH Utilization

This topic describes the definition, type, unit, and associated original KPIs of the Uplink PDTCH/

PACCH Utilization.

5.8.2 Downlink PDTCH/PACCH Utilization


PDTCH/PACCH Utilization.

5.8.3 PDCH Utilization

This topic describes the definition, type, unit, and associated original KPIs of the PDCHUtilization.

5.8.4 Pre-Empted PDCHs Carrying Packet Traffic Success Rate

This topic describes the definition, type, unit, and associated original KPIs of the Pre-Empted

PDCHs Carrying Packet Traffic Success Rate.

5.8.5 PDCH Assignment Success Rate

This topic describes the definition, type, unit, and associated original KPIs of the PDCH


5.8.6 Mean Downlink Throughput Per PDCH

This topic describes the definition, type, unit, and associated original KPIs of the Mean Downlink

Throughput Per PDCH.

5.8.7 Mean U plink Throughput Per PDCH

This topic describes the definition, type, unit, and associated original KPIs of the Mean Uplink


5.8.1 Uplink PDTCH/PACCH Utilization

This topic describes the definition, type, unit, and associated original KPIs of the Uplink PDTCH/

PACCH Utilization.

Table 5-51 U plink PDTCH/PACCH Utilization

Name Uplink PDTCH/PACCH Utilization

Definition Number of RLC data blocks received on uplink PDTCH or PACCH/Uplink

PDTCH or PACCH utilization rate

Measuremen

t Range

Cell level






Associated

Original

KPIs


the cell radio channel [330] -> Number of RLC data blocks received on uplink

PDTCH/PACCH


the cell radio channel [330] -> Uplink PDTCH/PACCH utilization rate (%)

Formula:

[332] x {100}/{335}


Unit %

5.8.2 Downlink PDTCH/PACCH Utilization

This topic describes the definition, type, unit, and associated original KPIs of the Downlink PDTCH/PACCH Utilization.

Table 5-52 Downlink PDTCH/PACCH Utilization

Name Downlink PDTCH/PACCH Utilization

Definition Number of RLC data blocks received on downlink PDTCH or PACCH/

Downlink PDTCH or PACCH utilization rate

Measurement

Range

Cell level

AssociatedOriginal KPIs

Original KPIs:


the cell radio channel [330] -> Number of RLC data blocks received on

downlink PDTCH/PACCH


the cell radio channel [330] -> Downlink PDTCH/PACCH utilization rate

(%)

Formula:

[333] x {100}/{336}


Unit %

5.8.3 PDCH Utilization


Utilization.

Table 5-53 PDCH Utilization

Name PDCH Utilization







Definition Mean number of occupied PDCHs/Mean number of available PDCHs

Measureme

nt Range

Cell level

AssociatedOriginal

KPIs

Original KPIs:


PDCH resource [380] -> Mean number of available PDCHs


PDCH resource [380] -> Mean number of occupied PDCHs

Formula:

[382] x {100}/[381]


Unit %

5.8.4 Pre-Empted PDCHs Carrying Packet Traffic Success Rate

This topic describes the definition, type, unit, and associated original KPIs of the Pre-Empted

PDCHs Carrying Packet Traffic Success Rate.

Table 5-54 Pre-Empted PDCHs Carrying Packet Traffic Success Rate

Name Pre-Empted PDCHs Carrying Packet Traffic Success Rate

Definition Number of pre-empted PDCHs carrying packet traffic/Number of dynamic

PDCHs reclaimed by the BSC

Measurement

Range

Cell level

Associated

Original KPIs

Original KPIs:


PDCH resource [380] -> Number of dynamic PDCHs reclaimed by BSC


PDCH resource [380] -> Number of pre-empted PDCHs carrying packet

traffic

Formula:

[386] x {100}/[385]


Unit %

5.8.5 PDCH Assignment Success Rate








Table 5-55 PDCH Assignment Success Rate

Name PDCH Assignment Success Rate

Definition 1–Number of GPRS&EGPRS TBF establishment failures due to MS no

response/Number of GPRS&EGPRS TBF establishment attempts

Measurement

Range

Cell level

Associated

Original KPIs

Original KPIs:






establishment failures due to MS no response



TBF establishment attempts



TBF establishment failures due to MS no response

[411]: Cell performance measurement [6] -> Number of uplink EGPRS TBF



Unit %

5.8.6 Mean Downlink Throughput Per PDCH

This topic describes the definition, type, unit, and associated original KPIs of the Mean Downlink


Table 5-56 Mean Downlink Throughput Per PDCH (kbit/s)

Name Mean Downlink Throughput Per PDCH (kbit/s)

Definition (RLCPayloadDL + EGPRSRLCPayloadDL)/({Measurement period} x{60})/Number of downlink TBF occupied PDCHs

Measurement

Range

None.

Associated

Original KPIs

Original KPIs:


PDCH resource [380] -> Number of downlink TBF occupied PDCHs

Number of downlink TBF occupied PDCHs =

[389]/({Measurement period} x {12})








Unit kbit/s

5.8.7 Mean Uplink Throughput Per PDCH

This topic describes the definition, type, unit, and associated original KPIs of the Mean Uplink


Table 5-57 Mean Uplink Throughput Per PDCH (kbit/s)

Name Mean Uplink Throughput Per PDCH (kbit/s)

Definition (RLCPayloadUL + EGPRSRLCPayloadUL)/({Measurement period} x

{60})/Number of uplink TBF occupied PDCHs

Measuremen

t Range

None.

Associated

Original

KPIs

Original KPIs:


PDCH resource [380] -> Number of uplink TBF occupied PDCHs

Number of uplink TBF occupied PDCHs =

[388]/({Measurement period} x {12})


Unit kbit/s

5.9 PS Retainability KPIs

This topic describes the PS Retainability KPIs that mainly involve the uplink and downlink TBF

call drop rates. These KPIs indicate the capability of providing continuous services by the

network and are directly related to user satisfaction. Thus, an increase in call drop rate directly

leads to a decrease in user satisfaction.

5.9.1 Uplink GPRS TBF Call Drop Rate

This topic describes the definition, type, unit, and associated original KPIs of the Uplink GPRS

TBF Call Drop Rate (%).

5.9.2 Downlink GPRS TBF Call Drop RateThis topic describes the definition, type, unit, and associated original KPIs of the Downlink

GPRS TBF Call Drop Rate (%).

5.9.3 Uplink EGPRS TBF Call Drop Rate



5.9.4 Downlink EGPRS TBF Call Drop Rate


EGPRS TBF Call Drop Rate (%).






5.9.1 Uplink GPRS TBF Call Drop Rate

This topic describes the definition, type, unit, and associated original KPIs of the Uplink GPRS


Table 5-58 Uplink GPRS TBF Call Drop Rate (%)

Name Uplink GPRS TBF Call Drop Rate (%)

Definition Number of uplink TBF abnormal release/Number of successful uplink

TBF establishment

Measurement

Range

Cell level

Associated

Original KPIs

Original KPIs:


for the uplink TBF establishment and release [150] -> Number of successful uplink TBF establishment


for the uplink TBF establishment and release [150] -> Number of uplink

TBF abnormal release due to N3101 overflow (MS no response)


for the uplink TBF establishment and release [150] -> Number of uplink


Formula:

([156] + [157])/[152] x {100}


Unit %

5.9.2 Downlink GPRS TBF Call Drop Rate


GPRS TBF Call Drop Rate (%).

Table 5-59 Downlink GPRS TBF call drop rate (%)

Name Downlink GPRS TBF call drop rate (%)

Definition Number of downlink TBF abnormal release due to N3105 overflow/

Number of successful downlink TBF establishment

Measurement

Range

Cell level







Associated

Original KPIs

Original KPIs:


for the downlink TBF establishment and release [180] -> Number of

successful downlink TBF establishment


for the downlink TBF establishment and release [180] -> Number of

downlink TBF abnormal release due to N3105 overflow

Formula:

[186]/[182] x {100}


Unit %

5.9.3 Uplink EGPRS TBF Call Drop RateThis topic describes the definition, type, unit, and associated original KPIs of the Uplink EGPRS


Table 5-60 Uplink EGPRS TBF Call Drop Rate (%)

Name Uplink EGPRS TBF Call Drop Rate (%)

Definition (Number of uplink EGPRS TBF abnormal release due to N3101 overflow

(MS no response + Number of uplink EGPRS TBF abnormal release due to

N3103 overflow (MS no response))/Number of successful uplink EGPRS

TBF establishment

Measurement

Range

Cell level

Associated

Original KPIs

Original KPIs:


the uplink EGPRS TBF establishment and release [410] -> Number of

successful uplink EGPRS TBF establishment


the uplink TBF establishment and release [410] -> Number of uplink EGPRS


[417]: Cell performance measurement [6] -> Performance measurement for the uplink TBF establishment and release [410] -> Number of uplink EGPRS


Formula:

([416] + [417])/[412] x {100}


Unit %






5.9.4 Downlink EGPRS TBF Call Drop Rate


EGPRS TBF Call Drop Rate (%).

Table 5-61 Downlink EGPRS TBF Call Drop Rate (%)

Name Downlink EGPRS TBF Call Drop Rate (%)

Definition Number of downlink EGPRS TBF abnormal release due to N3105 overflow/

Number of successful downlink EGPRS TBF establishment

Measureme

nt Range

Cell level

Associated

Original

KPIs

Original KPIs:

[432]: Cell performance measurement [6] -> Performance measurement for the downlink EGPRS TBF establishment and release [430] -> Number of

successful downlink EGPRS TBF establishment


the uplink TBF establishment and release [430] -> Number of downlink

EGPRS TBF abnormal release due to N3105 overflow

Formula:

[436]/[432] x {100}


Unit %

5.10 PS End-to-End Delay KPIs

This topic describes the PS End-to-End Delay KPIs that indicate the service response speed of

the network. Long delay affects user satisfaction.

5.10.1 PING Delay

This topic describes the definition, type, unit, and associated original KPIs of the PING Delay.

5.10.2 Mean Delay of PDP Activation

This topic describes the definition, type, unit, and associated original KPIs of the Mean Delayof PDP Activation.

5.10.3 Mean Delay of Attachment

This topic describes the definition, type, unit, and associated original KPIs of the Mean Delay

of Attachment.

5.10.4 Cell Reselect Time for 2G Packet Services

This topic describes the definition, type, unit, and associated original KPIs of the Cell Reselect

Time for 2G Packet Services.

5.10.5 Cell Reselect Time for 2G-3G Packet Services


Time for 2G-3G Packet Services.







5.10.1 PING Delay

This topic describes the definition, type, unit, and associated original KPIs of the PING Delay.

Table 5-62 PING Delay

Name PING Delay

Definition Interval between the sending of the ping command from the source address

and the receipt of the response from the destination address

Measurement

Range

Cell level

Associated

Original KPIs

None.

Type Original counters

Unit Second

Nominal

Reference

Value

56 Bytes, Primary, CS4, 800 ms

56 Bytes, Continuous, CS4, 700 ms

1460 Bytes, Primary, CS4, 1750 ms

1460 Bytes, Continuous, CS4, 1550 ms

56 Bytes, Primary, MCS7, 1000 ms

56 Bytes, Continuous, MCS7, 700 ms

1460 Bytes, Primary, MCS9, 1200 ms

1460 Bytes, Continuous, MSC9, 1050 ms

5.10.2 Mean Delay of PDP Activation


of PDP Activation.

Table 5-63 Mean Delay of PDP Activation

Name Mean Delay of PDP Activation

Definition Mean Delay of PDP Activation initiated by a MS

Measurement

Range

Cell counters

Associated

Original KPIs

None.

Type Original counters

Unit Second

Nominal

Reference Value

1 s






5.10.3 Mean Delay of Attachment


of Attachment.

Table 5-64 Mean Delay of Attachment

Name Mean Delay of Attachment

Definition This KPI indicates the delay of attachment on the equipment of the core

network. Mean delay of attachment between the receipt of the ATTACH

REQUEST message sent by the MS and the sending of the ATTACH

ACCEPT sent by the SGSN = Total delay of GPRS attachment/Number

of GPRS attachment

Measurement

Range

Cell counters

Associated

Original KPIs

None.


Unit Second

Nominal

Reference Value

2.3 s

5.10.4 Cell Reselect Time for 2G Packet ServicesThis topic describes the definition, type, unit, and associated original KPIs of the Cell Reselect

Time for 2G Packet Services.

Table 5-65 Cell Reselect Time for 2G Packet Services

Name Cell Reselect Time for 2G Packet Services

Definition Cell Reselect Time for 2G Packet Services

Measurement

Range

Cell level

Associated

Original KPIs

None.


Unit Second

Nominal Reference

Value

About 4 s (without NACC)







5.10.5 Cell Reselect Time for 2G-3G Packet Services


Time for 2G-3G Packet Services.

Table 5-66 Cell Reselect Time for 2G-3G Packet Services

Name Cell Reselect Time for 2G-3G Packet Services

Definition Cell Reselect Time for 2G-3G Packet Services

Measurement

Range

Cell level

Associated

Original KPIs

None.


Unit Second

Nominal

Reference Value

10.39 s

5.11 PS End-to-End Quality KPIs

This topic describes the PS end-to-end quality KPIs. They involve the performance factors of

terminals, the radio access network, and the core network. Now, the main performance

bottleneck comes from the radio access network. Therefore, these KPIs indicate the end-to-endservice data link bearing capability of the GPRS network, which are directly related to user

satisfaction.

5.11.1 GPRS Data Transmission Rate

This topic describes the definition, type, unit, and associated original KPIs of the GPRS Data

Transmission Rate.

5.11.2 EDGE Data Transmission Rate

This topic describes the definition, type, unit, and associated original KPIs of the EDGE Data

Transmission Rate.

5.11.1 GPRS Data Transmission Rate

This topic describes the definition, type, unit, and associated original KPIs of the GPRS Data

Transmission Rate.

Table 5-67 GPRS Data Transmission Rate

Name GPRS Data Transmission Rate

Definition Data transmission rate on each PDCH; rate on the application layer

Measurement

Range

Cell level






Associated

Original KPIs

None.


Unit kbit/s

Nominal

Reference

Value

Small-size file (about 200 KB)

Uplink and downlink: 18.5 kbit/s

Large-size file (more than 1 MB)

Uplink and downlink: 19.1 kbit/s

5.11.2 EDGE Data Transmission Rate

This topic describes the definition, type, unit, and associated original KPIs of the EDGE Data

Transmission Rate.

Table 5-68 EDGE Data Transmission Rate

Name EDGE Data Transmission Rate

Definition Data transmission rate on each PDCH; rate on the application layer

Measurement

Range

Cell level

Associated

Original KPIs

None.


Unit kbit/s

Nominal

Reference Value

Small-size file (about 512 KB)

Uplink: 42.45 kbit/s

Large-size file (more than 1 MB)

Downlink: 53.64 kbit/s




2g data key performance indicators

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