User Description Radio Network Statistic

User Description, Radio Network Statistics
USER DESCRIPTION
216/1553-HSC 103 12/16 Uen E

Copyright
© Copyright Ericsson AB 2010. All rights reserved.
Disclaimer
No part of this document may be reproduced in any form without the written
permission of the copyright owner.
The contents of this document are subject to revision without notice due to
continued progress in methodology, design, and manufacturing. Ericsson shall
have no liability for any error or damage of any kind resulting from the use
of this document.
216/1553-HSC 103 12/16 Uen E | 2010-11-10

Contents
Contents
1 Introduction 1
2 Capabilities 3
3 Measurement Tools for Radio Network Performance 5
3.1 General 5
3.2 Monitoring and Performance Tools 5
3.3 Implementation Tools 6
3.4 Troubleshooting Tools 7
4 STS 9
4.1 General 9
4.2 STS on APG 10
4.3 Statistical Analysis 11
4.4 Object Types Used for the Radio Network 11
4.5 Object Types Used for GPRS 24
4.6 Object Types for DTM 28
4.7 Object Types for GSM to UTRAN 29
4.8 Main Changes in Ericsson GSM System G10B/BSS G10B 29
5 GSM Radio Network Performance Monitoring 35
5.1 Introduction 35
5.2 Definitions and Explanations 35
5.3 General Traffic Information 36
5.4 Accessibility 38
5.5 Retainability 49
5.6 Speech Quality 58
5.7 Performance Measurement of Specific Radio Network
Features 67
6 GPRS/EGPRS Radio Network Performance Monitoring 93
6.1 Introduction 93
6.2 Level One - IP Data Volume and GPRS Availability 96
6.3 Level One - IP Throughput 99
6.4 Level One - IP Latency 108
216/1553-HSC 103 12/16 Uen E | 2010-11-10

User Description, Radio Network Statistics
6.5 Level One - IP Transfer Interrupts Downlink (IP Buffer
Discards) 113
6.6 Level One - IP Transfer Interrupts Uplink (MS to BSS
Connection Issues) 116
6.7 GPRS user session counters for active users 121
6.8 Level One - Streaming Connection Negotiations 122
6.9 Level Two - Radio Link Quality 124
6.10 Level Two - GPRS Traffic Load 138
6.11 Level Two – GPRS Traffic load over Gb interface 148
6.12 Level Two - CS Traffic Load and PDCH Allocation 149
6.13 Level Two - Multislot Utilisation (PDCH Reservation) 153
6.14 Level Two - Mobility 159
6.15 Level Two - GSL Device Utilisation 160
6.16 Level Two - GPH RP Load 163
6.17 Additional Counters 165
7 Abis over IP and Abis Optimization Measurements and
Counters 191
7.1 Frame Loss Ratio Formulas for Packet Abis 191
7.2 Delay measurements Formulas for Packet Abis 193
7.3 Additional Measurements for Abis Optimization and Abis
over IP 196
7.4 STN counters used in Formulae 205
7.5 Summary of STS Counters for Abis over IP and Abis
Optimization 206
8 Packet Abis Influence on Important BSS KPI and PI
Measurements 221
8.1 IP Transfer interrupts 221
8.2 GPRS Availability 221
8.3 IP Latency GPRS 221
8.4 IP Throughput and Radio Link Bitrate measurements 222
8.5 IP User Data Volume (measured per hour) 223
8.6 CS Accessibility - Random access success rate 223
8.7 CS Accessibility - SDCCH Time Congestion 223
8.8 CS Accessibility - SDCCH Drop rate 223
8.9 CS Accessibility - TCH Assignment success rate 223
8.10 CS Retainability - TCH Drop rate 223
8.11 CS Retainability – Handover Success Rate and Lost Rate 224
216/1553-HSC 103 12/16 Uen E | 2010-11-10

User Description, Radio Network Statistics
8.12 CS Integrity SQI 224
8.13 CS Traffic Volume 224
9 A over IP Measurements and Counters 225
9.1 Counters for AGW RP CPU Load 225
9.2 Counters for AGW RP Traffic 226
9.3 RTP Configuration Changes Counters for A over IP 228
9.4 Capacity Locks for the A over IP Interface 229
10 GPRS/EGPRS Radio Network Dimensioning Using STS
Counters 231
10.1 How to Use This Dimensioning Methodology 232
10.2 Dimensioning Concepts 232
10.3 How to Dimension a Network 234
10.4 Simulation Results Presented in Graphs 235
10.5 Adjust Cells with Only B-PDCHs 239
10.6 Adjust Cells with B-PDCHs and G-PDCHs 246
10.7 Adjust Cells with B-PDCHs and E-PDCHs 254
10.8 Example of Dimensioning a Cell with Only E-PDCHs 261
11 GSM to UTRAN Performance Monitoring 265
11.1 Introduction 265
11.2 Monitoring GSM to UTRAN Handovers 265
12 IP Transport Statistics 267
12.1 Introduction 267
12.2 SNMP Infrastructure 267
12.3 IP Network Layers 268
12.4 SNMP-Based Counters 268
12.5 Formulae 274
13 Concepts 275
Glossary 279
Reference List 283
216/1553-HSC 103 12/16 Uen E | 2010-11-10