Nokia NSN Traffic Measurments
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Transcript of Nokia NSN Traffic Measurments
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1 Traffic Measurement
DN9813827Issue 11-1 en29/04/2008
# Nokia Siemens Networks 1 (319)
BSC3153Nokia GSM/EDGE BSS, Rel. BSS13, BSC andTCSM, Rel. S13, Product Documentation, v.4
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The information in this document is subject to change without notice and describes only theproduct defined in the introduction of this documentation. This documentation is intended for theuse of Nokia Siemens Networks customers only for the purposes of the agreement under whichthe document is submitted, and no part of it may be used, reproduced, modified or transmitted inany form or means without the prior written permission of Nokia Siemens Networks. Thedocumentation has been prepared to be used by professional and properly trained personnel,and the customer assumes full responsibility when using it. Nokia Siemens Networks welcomescustomer comments as part of the process of continuous development and improvement of thedocumentation.
The information or statements given in this documentation concerning the suitability, capacity, orperformance of the mentioned hardware or software products are given as is and all liabilityarising in connection with such hardware or software products shall be defined conclusively andfinally in a separate agreement between Nokia Siemens Networks and the customer. However,Nokia Siemens Networks has made all reasonable efforts to ensure that the instructionscontained in the document are adequate and free of material errors and omissions. NokiaSiemens Networks will, if deemed necessary by Nokia Siemens Networks, explain issues whichmay not be covered by the document.
Nokia Siemens Networks will correct errors in this documentation as soon as possible. IN NOEVENT WILL NOKIA SIEMENS NETWORKS BE LIABLE FOR ERRORS IN THISDOCUMENTATION OR FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO SPECIAL,DIRECT, INDIRECT, INCIDENTAL OR CONSEQUENTIAL OR ANY LOSSES, SUCH AS BUTNOT LIMITED TO LOSS OF PROFIT, REVENUE, BUSINESS INTERRUPTION, BUSINESSOPPORTUNITY OR DATA, THAT MAYARISE FROM THE USE OF THIS DOCUMENT OR THEINFORMATION IN IT.
This documentation and the product it describes are considered protected by copyrights andother intellectual property rights according to the applicable laws.
The wave logo is a trademark of Nokia Siemens Networks Oy. Nokia is a registered trademark ofNokia Corporation. Siemens is a registered trademark of Siemens AG.
Other product names mentioned in this document may be trademarks of their respective owners,and they are mentioned for identification purposes only.
Copyright Nokia Siemens Networks 2008. All rights reserved.
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Contents
Contents 3
List of tables 9
List of figures 10
Summary of changes 15
1 1 Traffic Measurement 17
2 Counters of Traffic Measurement 312.1 001000 / SEIZURE ATTEMPTS 312.2 001001 / SEIZURE ATTEMPTS WITH BUSY SDCCH 322.3 001002 / TRANSACTIONS FAIL DUE TO BSS FAIL 322.4 001003 / TRANSACTIONS FAIL DUE TO RADIO FAIL 332.5 001004 / TRANSACTIONS FAIL DUE RADIO ON SOURCE CHANNEL
DURING HO 342.6 001005 / TRANSACTIONS FAIL DUE RADIO ON TARGET
CHANNEL 352.7 001006 / SUCCESS SEIZURE FOR HO 362.8 001007 / SUCCESS SEIZURE FOR IMMEDIATE ASSIGNMENT 362.9 001008 / SUCCESS TCH SEIZURE FOR HO 372.10 001009 / SUCCESS TCH SEIZURE FOR NORMAL ASSIGNMENT 372.11 001010 / TCH REQUEST SUCCESS AND UNSUCCESS 382.12 001011 / TCH REQUEST REJECTED DUE TO LACK 392.13 001012 / TRANSACTIONS ENDED DUE TO BSS PROBLEM 402.14 001013 / TRANSACTIONS ENDED DUE RADIO FAIL 412.15 001014 / TRANSACTIONS ENDED DUE SOURCE CHANNEL FAIL
DURING HO 422.16 001015 / TRANSACTIONS ENDED DUE TARGET CHANNEL FAIL 422.17 001016 / CALL ATTEMPTS IN THE QUEUE 432.18 001017 / HANDOVER ATTEMPTS IN THE QUEUE 442.19 001018 / AVE QUEUE LENGTH FOR CHANNEL SEIZURE
REQUEST 452.20 001019 / QUEUE DENOMINATOR 1 452.21 001020 / AVE QUEUE TIME OF CALL ATTEMPTS 462.22 001021 / QUEUE DENOMINATOR 2 472.23 001022 / AVE QUEUE TIME OF HO ATTEMPTS 472.24 001023 / QUEUE DENOMINATOR 3 482.25 001024 / NOT SERVED QUEUED CALL ATTEMPTS 492.26 001025 / NOT SERVED QUEUED HO ATTEMPTS 502.27 001026 / TCH CALL REQ 502.28 001027 / SDCCH ACT FAIL 512.29 001028 / TCH ACT FAIL 522.30 001029 / TCH TR FAIL 532.31 001030 / TCH TR FAIL SOURCE 532.32 001031 / TCH TR FAIL TARGET 542.33 001032 / NOT RELEVANT 55
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2.34 001033 / SDCCH ABIS PROBL 552.35 001034 / SDCCH A IF PROBL 562.36 001035 / SDCCH LAPD FAIL 572.37 001036 / SDCCH BTS FAIL 572.38 001037 / SDCCH USER ACT 582.39 001038 / SDCCH BCSU RESET 592.40 001039 / SDCCH NETW ACT 592.41 001040 / TRUNK RES INVOC 602.42 001041 / SUCC TRUNK RES INVOC 612.43 001042 / TRUNK RES INVOC RES REFUSED 612.44 001043 / TCH REQ FACCH CALLSET 622.45 001044 / TCH SEIZ FACCH CALL SET 632.46 001045 / TCH ABIS PROBL 642.47 001046 / TCH LAPD FAIL 642.48 001047 / TCH BTS FAIL 652.49 001048 / TCH USER ACT 662.50 001049 / TCH BCSU RESET 662.51 001050 / TCH NETW ACT 672.52 001051 / TCH A IF PROBL 682.53 001052 / TRHO REQ 682.54 001053 / TRHO ENQUIRIES 692.55 001054 / FOR REL ASSIGN REQ ATT 702.56 001055 / FOR HO ASSIGN REQ ATT 702.57 001056 / QUE ALL ASSIGN REQ ATT 712.58 001057 / QUE NALL ASSIGN REQ ATT 722.59 001058 / FOR REL ASSIGN REQ FAIL 732.60 001059 / FOR HO ASSIGN REQ FAIL 742.61 001060 / QUE ALL ASSIGN REQ FAIL 752.62 001061 / QUE NALL ASSIGN REQ FAIL 752.63 001062 / FOR REL HO REQ ATT 762.64 001063 / FOR HO HO REQ ATT 772.65 001064 / QUE ALL HO REQ ATT 782.66 001065 / QUE NALL HO REQ ATT 782.67 001066 / FOR REL HO REQ FAIL 792.68 001067 / FOR HO HO REQ FAIL 802.69 001068 / QUE ALL HO REQ FAIL 812.70 001069 / QUE NALL HO REQ FAIL 822.71 001070 / FORCED RELEASES 822.72 001071 / FORCED HANDOVERS 832.73 001072 / SDCCH ACT FAIL CALL 842.74 001073 / NOT RELEVANT 842.75 001074 / SDCCH ACT FAIL TARGET 852.76 001075 / SDCCH ABIS FAIL CALL 862.77 001076 / SDCCH ABIS FAIL SOURCE 862.78 001077 / SDCCH ABIS FAIL TARGET 872.79 001078 / SDCCH A IF FAIL CALL 882.80 001079 / SDCCH A IF FAIL SOURCE 892.81 001080 / SDCCH A IF FAIL TARGET 902.82 001081 / TCH ACT FAIL CALL 902.83 001082 / NOT RELEVANT 912.84 001083 / TCH ACT FAIL TARGET 922.85 001084 / TCH ABIS FAIL CALL 92
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2.86 001085 / TCH ABIS FAIL SOURCE 932.87 001086 / TCH ABIS FAIL NEW 942.88 001087 / TCH A IF FAIL CALL 942.89 001088 / TCH A IF FAIL SOURCE 952.90 001089 / TCH A IF FAIL NEW 962.91 001090 / TCH REQ UND OVER 972.92 001091 / TCH SEIZ UND OVER 982.93 001092 / TCH REJ REQ UND OVE 982.94 001093 / SUCC MOC TEST CALL 992.95 001094 / FAIL MOC TEST CALL 1002.96 001095 / PRI SUBSCR TCH REQ 1002.97 001096 / PRI SUBSCR SUCC TCH SEIZ 1012.98 001097 / NO PRI SUBSCR REFUSED TCH REQ 1022.99 001098 / TCH SEIZ ATT DUE SDCCH CON 1032.100 001099 / TCH SEIZ DUE SDCCH CON 1042.101 001100 / TRUNK TCH REJECTED FR REQ 1042.102 001101 / TRUNK TCH REJECTED HR REQ 1052.103 001102 / FULL TCH REQ SUCC UNSUCC 1062.104 001103 / HALF TCH REQ SUCC UNSUCC 1072.105 001104 / TCH REQ FULL PREFERRED 1082.106 001105 / TCH REQ HALF PREFERRED 1092.107 001106 / SUCC FULL TCH SEIZ 1112.108 001107 / SUCC HALF TCH SEIZ 1112.109 001108 / FULL TCH SEIZ SPEECH VER 1 1122.110 001109 / FULL TCH SEIZ SPEECH VER 2 1132.111 001110 / FULL TCH SEIZ SPEECH VER 3 1142.112 001111 / HALF TCH SEIZ SPEECH VER 1 1152.113 001112 / HALF TCH SEIZ SPEECH VER 2 1162.114 001113 / HALF TCH SEIZ SPEECH VER 3 1172.115 001114 / FULL TCH SEIZ NORM ASSIGNMENT 1182.116 001115 / HALF TCH SEIZ NORM ASSIGNMENT 1192.117 001116 / FULL TCH SEIZ INT HO CH RATE 1202.118 001117 / HALF TCH SEIZ INT HO CH RATE 1212.119 001118 / REJ TCH REQ DUE LACK FR 1222.120 001119 / REJ TCH REQ DUE LACK HR 1232.121 001120 / FULL TCH REJ DUE HR TRAF 1242.122 001121 / HALF TCH REJ DUE FR TRAF 1252.123 001122 / TCH REJ DUE REQ CH A IF CRC 1262.124 001123 / FULL TCH REQ FACCH CALL 1262.125 001124 / TCH FACCH CALL CH RATE NOT DEF 1272.126 001125 / SUCC FULL TCH SEIZ FACCH CALL 1282.127 001126 / SUCC HALF TCH SEIZ FACCH CALL 1292.128 001127 / ENDED DUE TRANSC FR RATE 1 1302.129 001128 / ENDED DUE TRANSC FR RATE 2 1302.130 001129 / ENDED DUE TRANSC FR RATE 3 1312.131 001130 / ENDED DUE TRANSC HR RATE 1 1322.132 001131 / ENDED DUE TRANSC HR RATE 2 1322.133 001132 / ENDED DUE TRANSC HR RATE 3 1332.134 001133 / FULL TCH TR FAIL 1342.135 001134 / HALF TCH TR FAIL 1352.136 001135 / SDCCH SEIZ ATT FOR MOC 1362.137 001136 / SDCCH SEIZ ATT FOR MTC 136
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2.138 001137 / TCH SEIZ ATT FOR MOC 1372.139 001138 / TCH SEIZ ATT FOR MTC 1382.140 001139 / TCH REL BECAUSE OF RADIO FAIL 1392.141 001140 / TCH REL DUE TO BSS FAIL 1402.142 001141 / TCH SEIZ FAILS DUE TO CONG 1412.143 001142 / QUEUED URGENT HANDOVER ATTEMPTS 1422.144 001143 / AVE QUE TIME OF URGENT HO ATTEMPTS 1432.145 001144 / QUE DENOMINATOR 4 1442.146 001145 / AVE QUE TIME OF NON URGENT HO ATTEMPTS 1452.147 001146 / QUE DENOMINATOR 5 1462.148 001147 / QUEUED URG HO ATTS NOT SERVED 1462.149 001148 / MS SUCC TCH SEIZURE FOR ASSIGNMENT
COMPLETE 1472.150 001149 / CALLS ENDED BY USER DURING DADL/B SETUP 1482.151 001150 / SUCC TCH SEIZ WHEN GOOD QUAL IN ADJACENTS 1492.152 001151 / TCH REQ REJ DUE TO BAD QUALITY IN ADJACENT 1492.153 001152 / SUCC TCH SEIZ WHEN QUAL BETW GOOD AND BAD IN
ADJACENT 1502.154 001153 / TCH REQ REJ WHEN QUAL BETW GOOD AND BAD IN
ADJACENT 1502.155 001154 / DYNAMIC SDCCH RECONFIGURATION ATTEMPT 1512.156 001155 / UNSUCC IMM ASS SDCCH ATTEMPT 1522.157 001156 / HSCSD TCH REQ WITH 14,4 1532.158 001157 / HSCSD SUCC TCH SEIZ WITH 14,4 1532.159 001158 / HSCSD TRANSP TCH REQ 1542.160 001159 / HSCSD SUCC TRANSP TCH SEIZ 1552.161 001160 / HSCSD REQ FOR CALL SETUP 1562.162 001161 / HSCSD TCH REQ FOR HO 1572.163 001162 / HSCSD SUCC TCH SEIZ FOR CALL SETUP 1572.164 001163 / HSCSD SUCC TCH SEIZ FOR HO 1582.165 001164 / HSCSD CON REL DUE TO FAIL 1592.166 001165 / SUCCESS TCH SEIZURE FOR DIRECT ACCESS 1602.167 001166 / TCH REQUEST FOR DIRECT ACCESS REJECTED DUE TO
LACK 1602.168 001167 / TCH REQUEST FOR A BSC CONTROLLED TRHO
PROCEDURE 1612.169 001168 / SUCC TCH SEIZ FOR A BSC CONTROLLED TRHO 1622.170 001169 / REJ TCH SEIZ FOR A BSC CONTROLLED TRHO DUE LACK
OF RESOURCES 1632.171 001170 / SUCCESSFUL TCH SEIZURES FOR DADLB HO 1632.172 001171 / TCH REQUEST IN DADLB HO REJECTED 1642.173 001172 / DADLB START DUE TO EXCEEDED LOAD 1652.174 001173 / REMOVAL FROM QUE DUE TO DR 1652.175 001174 / GPRS TER UPGRD REQ 1662.176 001175 / INCOMPL SERV GPRS TER UPGR REQ 1672.177 001176 / GPRS TER UG REJ DUE CSW TR 1672.178 001177 / GPRS TER UG REJ DUE LACK PSW RES 1682.179 001178 / GPRS TER UG REJ DUE LACK PCU CAP 1692.180 001179 / GPRS TER DG DUE INC IN CSW TR 1692.181 001180 / GPRS TER UG DUE DEC CSW TR 1702.182 001181 / GPRS TER DOWNGRADE REQ 1702.183 001182 / FULL TCH SEIZ INTRA AMR HO 171
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2.184 001183 / HALF TCH SEIZ INTRA AMR HO 1722.185 001184 / TCH CALL REQ FOR AMR 1732.186 001185 / SUCCESSFUL AMR CODEC SET DOWNGRADES 1732.187 001186 / UNSUCCESSFUL AMR CODEC SET DOWNGRADES 1742.188 001187 / SUCCESSFUL AMR CODEC SET UPGRADES 1752.189 001188 / UNSUCCESSFUL AMR CODEC SET UPGRADES 1762.190 001189 / TCH REQ FOR 96 DAT CALL 1762.191 001190 / SUCC TCH SEIZ FOR 96 DAT CALL 1772.192 001191 / SPARE001191 1772.193 001192 / TCH REQUESTS FOR CALL ATTEMPT 1782.194 001193 / SUCCESSFUL TCH SEIZURES FOR CALL ATTEMPT 1782.195 001194 / TCH ACCESS REJECTED DUE LOW RX 1792.196 001195 / MSC O HO CMD 1792.197 001196 / BSC O HO CMD 1802.198 001197 / BTS HO ASSGN 1812.199 001198 / TCH REL DUE TO RADIO FAIL PH 9-11 1812.200 001199 / TCH REL DUE TO BSS FAIL PH 2-3 1822.201 001200 / TCH REL DUE TO BSS FAIL PH 9-11 1832.202 001201 / SDCCH FAIL PH 3 1832.203 001202 / DROP AFTER TCH ASSIGN 1842.204 001203 / ERROR IND DURING LU 1842.205 001204 / DROP TCH ASSCOMPL TO RFCH REL 1852.206 001205 / TCH REL DUE RAD FAIL PH 2-3 1872.207 001206 / TCH REL DUE RAD FAIL PH 12-14 1882.208 001207 / TCH REL DUE BSS FAIL PH 12-14 1882.209 001208 / A IF CRC MISMATCH CALL SETUP 1892.210 001209 / GPRS TER DG REJ DUE STREAMING 1892.211 001210 / GPRS TER DG REQ WHEN EQOS ON 1902.212 001211 / TCH REL BSC BSC CONFLICT CALL 1912.213 001212 / TCH REL BSC BSC CONFLICT TARG 1912.214 001213 / GPRS TER UG REQ FROM CSW 1922.215 001214 / GPRS TER UG FROM CSW PARTIAL 1922.216 001215 / GPRS TER UG FROM CSW FAILED 1932.217 001216 / TCH REQ REJ DUE TO LACK OF RES PER BCSU 1942.218 001217 / INTERNAL TO EXTERNAL HO 1952.219 001218 / NOT CHANGED INTERNAL HO 1952.220 001219 / SPARE001219 1962.221 001220 / SPARE001220 1972.222 001221 / SPARE001221 1972.223 001222 / SPARE001222 1982.224 001223 / SPARE001223 1982.225 001224 / SPARE001224 1992.226 001225 / SPARE001225 1992.227 001226 / SPARE001226 2002.228 001227 / SPARE001227 2002.229 001228 / SPARE001228 2012.230 001229 / SPARE001229 2012.231 001230 / SPARE001230 2022.232 001231 / SDCCH LU ATTEMPTS 2022.233 001232 / SDCCH LU ATTEMPTS FAIL 2032.234 001233 / DROPS AFTER DTM CS TCH ASSIGNMENT 2032.235 001234 / DTM CS TCH DROPS BETWEEN ASSCOMPL AND RFCH REL
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ACK 2042.236 001235 / FORCED RELEASE AFTER FORCED HO 2052.237 001236 / CLASS 2 SUBSCRIBER FORCED RELEASE 2062.238 001237 / TCH REQUESTS FOR CALL ATTEMPT CLASS 1 2062.239 001238 / SUCCESSFUL TCH SEIZURES FOR CALL ATTEMPT CLASS
1 2072.240 001239 / TCH REQUESTS FOR CALL ATTEMPT CLASS 2 2082.241 001240 / SUCCESSFUL TCH SEIZURES FOR CALL ATTEMPT CLASS
2 2082.242 001241 / TCH REQUESTS FOR CALL ATTEMPT CLASS 3 2092.243 001242 / SUCCESSFUL TCH SEIZURES FOR CALL ATTEMPT CLASS
3 2102.244 001243 / DR TRAU DOWNGRADE ATTEMPTED IN AMR HO 2102.245 001244 / DR TRAU DOWNGRADE ATTEMPT FAILED 2112.246 001245 / DR TRAU UPGRADE ATTEMPTED IN AMR HO 2122.247 001246 / DR TRAU UPGRADE ATTEMPT FAILED 2122.248 001247 / SEIZURE IN AMR FR TO HR HO 2132.249 001248 / SEIZURE IN AMR HR TO FR HO 2132.250 001249 / INTERNAL AMR HO TO EXTERNAL 2142.251 001250 / SUCCESSFUL LRTCH SEIZURES 215
3 Signalling charts of Traffic Measurement 217
4 Signalling charts of Dual Transfer Mode 297
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List of tables
Table 1. Measurement description of Traffic Measurement 17
Table 2. SDCCH attempts counters 17
Table 3. SDCCH success counters 18
Table 4. SDCCH failure counters 18
Table 5. TCH requests and attempts counters 19
Table 6. TCH success counters 21
Table 7. TCH failure counters 22
Table 8. Other counters 25
Table 9. GPRS counters 26
Table 10. Spare counters 27
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List of figures
Figure 1. Basic call without counters 218
Figure 2. Basic call with counters 219
Figure 3. Basic call with priority subscriber 220
Figure 4. FACCH call setup due to SDCCH congestion without counters 221
Figure 5. FACCH call setup due to SDCCH congestion with counters 222
Figure 6. FACCH call setup due to SDCCH congestion, no free TCH channel.Optional software directed retry is not activated 223
Figure 7. Normal release 224
Figure 8. Basic call, no free TCH and queuing or directed retry is not allowed 225
Figure 9. Successful TCH queuing 226
Figure 10. Basic call, no free TCHs, unsuccessful queuing and directed retry notactivated 227
Figure 11. TCH assignment failure due to MSC's inability to switch circuit pool 228
Figure 12. Unsuccessful TCH activation 229
Figure 13. Unsuccessful TCH activation, timer expires while waiting forCHANNEL_ACTIVATION_ACK message 230
Figure 14. TCH assignment failure 231
Figure 15. TCH assignment failure, MSC sends CLEAR_COMMAND message 232
Figure 16. CONNECTION_FAILURE message with cause transcoder_failure duringa call 233
Figure 17. TRX or TSL is blocked with different causes during a call 234
Figure 18. SDCCH congestion, FACCH call setup is not activated 235
Figure 19. Unsuccessful SDCCH activation 236
Figure 20. Unsuccessful SDCCH activation, timer expires while waiting forCHANNEL_ACTIVATION_ACK message 237
Figure 21. Connection failure during SDCCH assignment 238
Figure 22. SDCCH assignment failure 239
Figure 23. Unsuccessful SDCCH activation, timer expires while waiting forPHYSICAL_CONTEXT_CONFIRM message 240
Figure 24. TRX/TSL is blocked with different causes during an SDCCH channelactivation 241
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Figure 25. Successful trunk reservation. Counters updated: 001040, 001041 andbasic call counters, see Figure 2. 242
Figure 26. Unsuccessful trunk reservation 243
Figure 27. Successful internal intra-cell handover. Counters 001090 and 001091 areupdated only with underlay overlay handover. 244
Figure 28. Internal intra-cell handover, successful TCH queuing 245
Figure 29. Unsuccessful internal intra-cell handover, timer expires while waiting forCHANNEL_ACTIVATION_ACK message 247
Figure 30. Unsuccessful internal intra-cell handover, CONNECTION_FAILUREmessage with cause remote_transcoder_failure comes to the targetchannel 248
Figure 31. Unsuccessful internal intra-cell handover, timer expires on the sourcechannel, call cleared 249
Figure 32. Unsuccessful underlay overlay internal intra-cell handover, queuing notallowed 250
Figure 33. Internal intra-cell handover, unsuccessful TCH queuing 251
Figure 34. Internal directed retry 253
Figure 35. Successful internal inter-cell handover 254
Figure 36. Unsuccessful internal inter-cell handover 255
Figure 37. Successful external handover, target 256
Figure 38. Successful external handover, source 257
Figure 39. Unsuccessful external handover, source BSC, timer expires while waitingfor CLEAR_COMMAND message 258
Figure 40. Unsuccessful external handover, MS sends a handover failure 259
Figure 41. Successful traffic reason handover, source 260
Figure 42. Successful SDCCH internal intra-cell handover 261
Figure 43. Unsuccessful SDCCH internal intra-cell handover, timer expires whilewaiting for CHANNEL_ACTIVATION_ACK message 262
Figure 44. Unsuccessful SDCCH internal intra-cell handover, unsuccessful channelactivation 263
Figure 45. Unsuccessful SDCCH internal intra-cell handover,CONNECTION_FAILURE message comes to the target channel duringhandover 264
Figure 46. Successful SDCCH internal inter-cell handover 265
Figure 47. Unsuccessful SDCCH internal inter-cell handover, BTS sends
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CONNECTION_FAILURE message 266
Figure 48. Successful SDCCH external handover target 267
Figure 49. Successful SDCCH external handover source. No countersupdating. 267
Figure 50. Unsuccessful SDCCH external handover, timer expires while waiting forCLEAR_COMMAND message 268
Figure 51. Successful forced release 269
Figure 52. Unsuccessful forced release 270
Figure 53. Unsuccessful forced release with external handover 271
Figure 54. Successful forced handover 272
Figure 55. Unsuccessful forced handover 273
Figure 56. Unsuccessful forced handover with external handover 274
Figure 57. Reconfiguration from TCH to SDCCH 275
Figure 58. Normal call 276
Figure 59. Mobile originated HSCSD call setup 277
Figure 60. Successful internal inter-cell handover for HSCSD, target cell allocationsand activations for three channels 278
Figure 61. A CONNECTION_FAILURE message which comes during anHSCSD 279
Figure 62. Internal intra-cell direct access from a regular DCCH to the super-reuseTRX. Optional software direct access to super-reuse TRX in IUOactivated. 280
Figure 63. Unsuccessful internal intra-cell direct access from regular DCCH to thesuper-reuse TRX due to lack of resources. Optional software directaccess to super-reuse TRX in IUO activated. 281
Figure 64. Timer T3107 expires while waiting for ASSIGNMENT_COMPLETEmessage 282
Figure 65. Average counter updating 283
Figure 66. Successful handover due to DADL/B 283
Figure 67. Unsuccessful DADL/B handover due to lack of resources 284
Figure 68. Successful BSC controlled TRHO 284
Figure 69. Unsuccessful BSC controlled TRHO 285
Figure 70. Dropped call between ASSIGNMENT COMPLETE andDISCONNECT 286
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Figure 71. Dropped call between ASSIGNMENT COMPLETE and RF CHANNELRELEASE ACK 287
Figure 72. Circuit pool switching during call setup, chart 1/2 288
Figure 73. Circuit pool switching during call setup, chart 2/2 289
Figure 74. AMR packing or unpacking handover 290
Figure 75. Successful handover type reselection from an internal inter-cell TCH toTCH handover to an external handover due to switching the circuitpool 291
Figure 76. Internal inter-cell handover change to external handover due to circuit poolswitching, target-cell 292
Figure 77. Internal intra-cell handover change to external due to circuit poolswitching, source side 293
Figure 78. Internal intra-cell handover change to external due to circuit poolswitching, target side 294
Figure 79. Circuit pool switch during inter-system handover, target-BSC 295
Figure 80. Circuit pool switch during external handover, target-BSC 296
Figure 81. MO DTM call establishment 298
Figure 82. MT DTM call establishment 299
Figure 83. DTM call reallocation; too high CS connection interference 300
Figure 84. DTM call reallocation; inadequate PS connection quality 301
Figure 85. DTM call; internal inter-cell handover; CS connection power budget 302
Figure 86. DTM call; internal inter-cell handover; lack of resources in the PSterritory 303
Figure 87. DTM call; external handover, source BSC 304
Figure 88. DTM call; external handover, target BSC 305
Figure 89. DTM call release initiated by the MS 306
Figure 90. DTM call release; packet data transfer end 307
Figure 91. DTM REQUEST rejected when IMSI data not available 308Figure 92. Unsuccessful MO DTM; activation of a CS TCH in the PS territory fails,
timer expires while waiting for CHANNEL ACTIVATION ACK 309
Figure 93. Unsuccessful MT DTM; activation of a CS TCH in the PS territory fails,timer expires while waiting for CHANNEL ACTIVATION ACK 310
Figure 94. Unsuccessful MT DTM; DTM ASSIGNMENT FAILURE received 311
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Figure 95. Timer T3107 expires while waiting for ASSIGNMENT COMPLETE 312
Figure 96. DTM call reallocation failure; DTM ASSIGNMENT FAILURE received 313
Figure 97. DTM CS connection drops after ASSIGNMENT COMPLETE;CONNECTION FAILURE received 314
Figure 98. DTM CS connection drops after ASSIGNMENT COMPLETE; RELEASEINDICATION not received 315
Figure 99. Unsuccessful DTM call reallocation; timer T3107 expires while waiting forASSIGNMENT COMPLETE 316
Figure 100.DTM TBF assignment failure; UL RLC block not received 317
Figure 101.DTM-capable MS paging 318
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Summary of changes
Changes between document issues are cumulative. Therefore, the latestdocument issue contains all changes made to previous issues.
Changes made between issues 11-1 and 11-0
Counters 001182 and 001183: information on when the counter is updatedhas been moved from Description to the Updated field.
Counter 001236: minor editorial change in the Updated field.
Nine new signalling charts added in section Signalling charts of TrafficMeasurement: Figures 72-80. The name of Figure 11 changed to TCHassignment failure due to MSC's inability to switch circuit pool.
Changes made between issues 11-0 and 10-0
New counters 001235 - 001242 related to BSS20869: Market ExpansionToolkit added.
New counters 001243 - 001249 related to BSS20588: TRAU Bicasting inAMR FR/HR Handover added.
New counter 001250 related to BSS21274: Long Reach TSL (Flexi EDGEBTS) added.
Object level information updated in chapter 1.
Counter table format changed.
The signalling chart 'TCH assignment failure, MSC sendsCLEAR_COMMAND message' updated.
Signalling charts of Dual Transfer Mode updated. For detailed informationon the updates, see Summary of changes in 106 CS DTM Measurement.
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Summary of changes
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Changes made between issues 10-0 and 9-1
New counters 001231 001234 added. Spare counters 001192, 001193,001217 and 001218 changed to real counters. Counters 001184, 001196,001198, 001199, and 001204 001207 modified.
Counters 001150 001153 changed to be no longer in use and signallingchart 66 removed because Dynamic Hot Spot is no longer supported.
Counters 001209 and 001210 changed to be not in use becauseEnhanced Quality of Service is not supported in S12. Enhanced Quality ofService will be available in S13.
New signalling charts 70 and 71 added, and signalling charts 13, 15, 16,17, 27, 29, 34, 35, 38, 42, 46, and 64 updated in Chapter 3.
Signalling charts of Dual Transfer Mode,which contains some signallingcharts related to counters 001233 and 001234, has been added.
Editorial changes made.
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1 1 Traffic MeasurementThe BSC traffic measurement registers information related to the standalone dedicated control channel (SDCCH) and traffic channels (TCH). TheBSC traffic measurement counters are divided into seven different classes.There are counters regarding the number of attempts to seize TCHs andSDCCHs, successful calls, lengths of the queue, and the reasons forfailures. This measurement collects one set of results for each BTS.Signalling charts are drawn with the accuracy of message interface.
Measurement description
Table 1. Measurement description of Traffic Measurement
Measurement
Measurement ID
Measurement abbreviation
Traffic Measurement
1
TRAFFIC
Product BSC
Product software release S1
Target name BTS
Measurement counters
. SDCCH attempts counters
Table 2. SDCCH attempts counters
Counter Counter number
Seizure attempts 001000
SDCCH seizure attempts for MOC 001135
SDCCH seizure attempts for MTC 001136
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Table 2. SDCCH attempts counters (cont.)
Counter Counter number
Dynamic SDCCH reconfiguration attempt 001154
SDCCH LU attempts 001231
. SDCCH success counters
Table 3. SDCCH success counters
Counter Counter number
Success seizure for HO 001006
Success seizure for immediate assignment 001007
. SDCCH failure counters
Table 4. SDCCH failure counters
Counter Counter number
Seizure attempts with busy SDCCH 001001
Transactions failed due to BSS failure 001002
Transactions failed due to radio failure 001003
Transact. failed due radio on source channel duringHO
001004
Transact. failed due radio on target channel duringHO
001005
SDCCH activation failure 001027
SDCCH Abis problems 001033
SDCCH A interface problems 001034
SDCCH LAPD failure 001035
SDCCH BTS failure 001036
SDCCH user actions 001037
SDCCH BCSU reset 001038
SDCCH network actions 001039
SDCCH activation failure call 001072
SDCCH activation failure target 001074
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Table 4. SDCCH failure counters (cont.)
Counter Counter number
SDCCH Abis failure call 001075
SDCCH Abis failure source 001076
SDCCH Abis failure target 001077
SDCCH A interface failure call 001078
SDCCH A interface failure source 001079
SDCCH A interface failure target 001080
Unsuccess immediate assignment SDCCH attempt 001155
SDCCH failures in phase 3 001201
Error indication messages during Location Update 001203
SDCCH LU attempts fail 001232
. TCH requests and attempts counters
Table 5. TCH requests and attempts counters
Counter Counter number
TCH request success and unsuccess 001010
Call attempts in the queue 001016
Handover attempts in the queue 001017
TCH call request 001026
Trunk reservation invocations 001040
TCH requests FACCH call setup 001043
Traffic reason HO requests 001052
Traffic reason HO enquiries 001053
Forced release assign request attempts 001054
Forced HO assign request attempts 001055
Queuing allowed assign request attempts 001056Queuing not allowed assign request attempts 001057Forced release HO request attempts 001062
Forced HO HO request attempts 001063
Queuing allowed HO request attempts 001064Queuing not allowed HO request attempts 001065
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Table 5. TCH requests and attempts counters (cont.)
Counter Counter number
TCH requests underlay overlay 001090
TCH seizure underlay overlay 001091
Priority subscriber TCH requests 001095
TCH seizure attempt due SDCCH congestion 001098
Full TCH requests success unsuccess 001102
Half TCH requests success unsuccess 001103
TCH requests full preferred 001104
TCH requests half preferred 001105
Full TCH requests FACCH call 001123
TCH FACCH call channel rate not defined 001124
TCH seizure attempts for MOC 001137
TCH seizure attempts for MTC 001138
Queued urgent handover attempts 001142TCH requests for 14.4k data calls 001156
HSCSD transparent TCH request 001158
HSCSD request for call setup 001160
HSCSD TCH request for HO 001161
TCH request for a BSC controlled TRHO procedure 001167
DADLB start due to exceeded load 001172
TCH requests for AMR call 001184
TCH requests for 9.6k data calls 001189
TCH requests for call attempt 001192
HO commands in outgoing MSC-controlled handover 001195
HO commands in outgoing BSCcontrolled handover 001196
Assignment commands in intra-BTS handover 001197
TCH requests for call attempt class 1 001237
TCH requests for call attempt class 2 001239
TCH requests for call attempt class 3 001241
. TCH success counters
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Table 6. TCH success counters
Counter Counter number
Success TCH seizure for HO 001008
Success TCH seizure for normal assignment 001009
Success trunk reservation invocations 001041
TCH seizure FACCH call setup 001044
Forced releases 001070
Forced handovers 001071
Priority subscriber success TCH seizure 001096
TCH seizure due SDCCH congestion 001099
Success full TCH seizure 001106
Success half TCH seizure 001107
Full TCH seizure speech ver 1 001108
Full TCH seizure speech ver 2 001109
Full TCH seizure speech ver 3 001110
Half TCH seizure speech ver 1 001111
Half TCH seizure speech ver 2 001112
Half TCH seizure speech ver 3 001113
Full TCH seizure normal assignment 001114
Half TCH seizure normal assignment 001115
Full TCH seizure internal HO channel rate 001116
Half TCH seizure internal HO channel rate 001117
Success full TCH seizure FACCH call 001125
Success half TCH seizure FACCH call 001126
MS success TCH seizure for assignment complete 001148
Calls ended by user during DADL/B setup 001149
Success TCH seizure when good quality in adjacents 001150Succ TCH seiz when qual betw good and bad in adj 001152HSCSD success TCH seizure with 14.4 001157
HSCSD success transparent TCH seizure 001159
HSCSD success TCH seizure for call setup 001162
HSCSD success TCH seizure for HO 001163
Success TCH seizure for direct access 001165
Succ TCH seiz for a controlled TRHO 001168
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Table 6. TCH success counters (cont.)
Counter Counter number
Successful TCH seizures for DADLB HO 001170
Removal from queue due to DR 001173
Successful FR TCH seizures with AMR codecs forHO
001182
Successful HR TCH seizures with AMR codecs forHO
001183
Successful TCH seizures for call attempt 001193
Successful TCH seizures for call attempt class1 001238
Successful TCH seizures for call attempt class2 001240
Successful TCH seizures for call attempt class3 001242
Seizure in AMR FR to HR HO 001247
Seizure in AMR HR to FR HO 001248
Successful LRTCH seizures 001250
. TCH failure counters
Table 7. TCH failure counters
Counter Counter number
TCH request rejected due to lack 001011Transactions ended due to BSS problem 001012
Transactions ended due to radio failure 001013
Transact. ended due source channel failure duringHO
001014
Transact. ended due target channel failure during HO 001015
Not served queued call attempts 001024
Not served queued HO attempts 001025
TCH activation failure 001028
TCH transcoder failure 001029
TCH transcoder failure source 001030
TCH transcoder failure target 001031
Trunk reservation invocations result refused 001042
TCH Abis problems 001045
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Table 7. TCH failure counters (cont.)
Counter Counter number
TCH LAPD failure 001046
TCH BTS failure 001047
TCH user actions 001048
TCH BCSU reset 001049
TCH network actions 001050
TCH A interface problems 001051
Forced release assign request failed 001058
Forced HO assign request failed 001059
Queuing allowed assign request failed 001060Queuing not allowed assign request failed 001061Forced release HO request failed 001066
Forced HO HO request failed 001067
Queuing allowed HO request failed 001068Queuing not allowed HO request failed 001069TCH activation failure call 001081
TCH activation failure target 001083
TCH Abis failure call 001084
TCH Abis failure source 001085
TCH Abis failure new 001086
TCH A interface failure call 001087
TCH A interface failure source 001088
TCH A interface failure new 001089
TCH rejected requests underlay overlay 001092Non-priority subscriber refused TCH requests 001097
Trunk TCH rejected FR requests 001100Trunk TCH rejected HR requests 001101Rejected TCH requests due lack FR 001118Rejected TCH requests due lack HR 001119Full TCH rejected requests due HR traffic 001120Half TCH rejected requests due FR traffic 001121TCH rejected due requested channel A interfacecircuit
001122
Ended due transcoder FR rate 1 001127
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Table 7. TCH failure counters (cont.)
Counter Counter number
Ended due transcoder FR rate 2 001128
Ended due transcoder FR rate 3 001129
Ended due transcoder HR rate 1 001130
Ended due transcoder HR rate 2 001131
Ended due transcoder HR rate 3 001132
Full TCH transaction failures 001133
Half TCH transaction failures 001134
TCH release due to radio failure 001139
TCH release due to BSS failure 001140
TCH seizure failure due to congestion 001141
Queued urgent HO attempts not served 001147TCH request rejected due to bad quality in adjacents 001151TCH req rej when qual betw good and bad in adj 001153HSCSD connection releases due to failure 001164
TCH request for direct access rejected due to lack 001166Rej TCH seiz for BSC contr TRHO due lack of res 001169TCH request in DADLB HO rejected 001171TCH drop due to too low RX level 001194
TCH releases due to radio failures, updated inphases 9-11
001198
TCH releases due to BSS failures, updated in phases2-3
001199
TCH releases due to BSS failures, updated in phases9-11
001200
Dropped calls after TCH assignment 001202
Number of TCH drops between Assignment Completeand RF Channel Release messages
001204
Number of TCH releases due to radio failures,updated only in phases 2-3
001205
Number of TCH releases due to radio failures,updated only in phases 12-14
001206
Number of TCH releases due to BSS failures,updated only in phases 12-14
001207
001208
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Table 7. TCH failure counters (cont.)
Counter Counter number
Number of TCH requests rejected due to themismatch between the types of the requestedchannel and the A interface circuit, updated only incall setup phase
Number of TCH releases due to BSC-BSC conflict incall setup
001211
Number of TCH releases due to BSC-BSC conflict fortarget channel
001212
Number of TCH requests rejected due to lack ofresources per BCSU
001216
Drops after DTM CS TCH assignment 001233
DTM CS TCH drops between ASSCOMPL and RFCHREL ACK
001234
. Other counters
Table 8. Other counters
Counter Counter number
Average queue length for channel seizure request 001018
Queue denominator 1 001019Average queue time of call attempts 001020
Queue denominator 2 001021Average queue time of HO attempts 001022
Queue denominator 3 001023Not relevant 001032
Not relevant 001073
Not relevant 001082
Successful MOC test call 001093
Unsuccessful MOC test call 001094
Average queuing time of urgent HO attempts 001143
Queue denominator 4 001144Average queuing time of non-urgent HO attempts 001145
Queue denominator 5 001146Successful AMR codec set downgrades 001185
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Table 8. Other counters (cont.)
Counter Counter number
Unsuccessful AMR codec set downgrades 001186
Successful AMR codec set upgrades 001187
Unsuccessful AMR codec set upgrades 001188
Internal to external HO 001217
Not changed internal HO 001218
Forced release after forced HO 001235
Class 2 subscriber forced release 001236
DR TRAU downgrade attempted in AMR HO 001243
DR TRAU downgrade attempt failed 001244
DR TRAU upgrade attempted in AMR HO 001245
DR TRAU upgrade attempt failed 001246
Internal AMR HO to external 001249
. GPRS counters
Table 9. GPRS counters
Counter Counter number
GPRS territory upgrade requests 001174
Incompletely served GPRS territory upgrade requests 001175
GPRS upgrade requests rejected due to CSW traffic 001176GPRS upgrade requests rejected due to lack of PSW 001177GPRS upgrade requests rejected due to to lack ofPCU
001178
GPRS downgrades due to increase in CSW traffic 001179
GPRS upgrades due to decrease in CSW traffic 001180
GPRS territory downgrade requests 001181
GPRS territory downgrade rejected due to streamingtraffic
001209
GPRS territory downgrade rejected due to need ofCS resources.
001210
Number of GPRS territory upgrade requestes fromCSW
001213
001214
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Table 9. GPRS counters (cont.)
Counter Counter number
Number of GPRS territory upgrade requests fromCSW, partially successful
Number of GPRS territory upgrade requests fromCSW, failed
011215
. Spare counters
Table 10. Spare counters
Counter Counter number
Spare001191 001191
Spare001219 001219
Spare001220 001220
Spare001221 001221
Spare001222 001222
Spare001223 001223
Spare001224 001224
Spare001225 001225
Spare001227 001227
Spare001228 001228
Spare001229 001229
Spare001230 001230
Related topics
. Counters of Traffic Measurement
. Signalling charts of Traffic Measurement
. Signalling charts of Dual Transfer Mode
Instructions
. BSC Statistics Administration
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For information on using this measurement to test the activation ofrelated software, see the testing instructions in:
. Activating and Testing BSS6071: EFR
. Activating and Testing BSS6115: Half Rate
. Activating and Testing BSS7003 and BSS7037: HSCSD and 14.4kbit/s Data Services
. Activating and Testing BSS7036: Dynamic SDCCH
. Activating and Testing BSS9006: GPRS
. Activating and Testing BSS10004: AMR
. Activating and Testing BSC3910: Pre-emption and BSS20869:Market Expansion Toolkit
. Activating and Testing BSS21274: Long Reach TSL (Flexi EDGEBTS)
Reference
. BSC Measurement Counters Displaying Program (FOXMEA)
. Performance Measurements
Descriptions
. Advanced Multilayer Handling
. Direct Access to Desired Layer/Band
. Directed Retry in BSC
. Dual Transfer Mode in BSC
. Dynamic Abis
. Dynamic Frequency and Channel Allocation in BSC
. Dynamic SDCCH in Radio Channel Allocation
. GPRS/EDGE System Feature Description
. Enhanced Coverage by Frequency Hopping
. Enhanced Speech Codecs: AMR and EFR
. Extended Cell Range
. FACCH Call Set-up
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. Half Rate in BSC
. Handover Support for Coverage Enhancements
. HSCSD and 14.4 kbit/s Data Services in BSC
. Intelligent Underlay-Overlay
. Multi BCF Control in BSC
. Radio Resource Pre-emption and Queuing in BSC
. Traffic Reason Handover in BSC
. Trunk Reservation
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2 Counters of Traffic Measurement2.1 001000 / SEIZURE ATTEMPTS
Counter ID: 001000 Network element name: SEIZURE ATTEMPTS
Version: 2.1 NetAct name: SDCCH_SEIZ_ATT
Description: Number of times when an MS attempts to seize an SDCCH.
Updated: When the RRM receives requests for SDCCH from an MS as the MS needs a channel foreither a call or a HO.
See figures:- Basic call with counters- FACCH call setup due to SDCCH congestion with counters- FACCH call setup due to SDCCH congestion, no free TCH channel- SDCCH congestion, FACCH call setup is not activated- Successful SDCCH internal intra-cell handover- Successful SDCCH internal inter-cell handover- Successful SDCCH external handover target- Reconfiguration from TCH to SDCCH
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
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2.2 001001 / SEIZURE ATTEMPTS WITH BUSY SDCCH
Counter ID: 001001 Network element name: SEIZURE ATTEMPTS WITH BUSYSDCCH
Version: 2.1 NetAct name: SDCCH_BUSY_ATT
Description: Number of times when an MS attempts to seize an SDCCH but the attempt isunsuccessful because all SDCCHs are busy. This counter does not necessarily mean that the callattempt is lost, because the call may be established as an FACCH call setup using TCH instead ofSDCCH. This counter is not triggered when the TCH reconfiguration is attempted because of dynamicSDCCH allocation. If the attempt fails, the SDCCH_busy_attempt is triggered together with 1155UNSUCC_IMM_ASS_SDCCH_ATTEMPT.
Updated: When the RRM has no SDCCHs to allocate for a call or HO attempts.
See figures:- FACCH call setup due to SDCCH congestion with counters- FACCH call setup because of SDCCH congestion- SDCCH congestion, FACCH call setup is not activated
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS20003: CS Statistics Enhancements
Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.3 001002 / TRANSACTIONS FAIL DUE TO BSS FAIL
Counter ID: 001002 Network element name: TRANSACTIONS FAIL DUE TOBSS FAIL
Version: 2.1 NetAct name: SDCCH_BSS_FAIL
Description: Number of SDCCH transactions ended because of a BSS failure.
Impact: See field descriptions of the counters 001033, 001034, 001035, and 001036.
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Updated: When one of the counters 001033, 001034, 001035, or 001036 is updated. This counterrepresents their sum.
See figures:- Unsuccessful SDCCH activation, timer expires while waiting for CHANNEL_ACTIVATION_ACKmessage- SDCCH assignment failure- Unsuccessful SDCCH activation, timer expires while waiting for PHYSICAL_CONTEXT_CONFIRMmessage- TRX/TSL is blocked with different causes during an SDCCH channel activation- Unsuccessful SDCCH internal intra-cell handover, timer expires while waiting forCHANNEL_ACTIVATION_ACK message- Unsuccessful SDCCH external handover, timer expires while waiting for CLEAR_COMMANDmessage
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.4 001003 / TRANSACTIONS FAIL DUE TO RADIOFAIL
Counter ID: 001003 Network element name: TRANSACTIONS FAIL DUE TORADIO FAIL
Version: 2.1 NetAct name: SDCCH_RADIO_FAIL
Description: Number of SDCCH transactions ended because of a radio failure.
Impact: Call cleared
Reason for the Impact: External / Abis Interface
Updated: When an SDCCH transaction ends because of a radio failure (radio link timeout) and theRRM releases the SDCCH.
This counter is updated in call phases 1-8 only.
See figures:- TCH assignment failure- Connection failure during SDCCH assignment
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Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.5 001004 / TRANSACTIONS FAIL DUE RADIO ONSOURCE CHANNEL DURING HO
Counter ID: 001004 Network element name: TRANSACTIONS FAIL DUE RADIOON SOURCE CHANNEL DURING HO
Version: 2.1 NetAct name: SDCCH_RF_OLD_HO
Description: Number of SDCCH transactions ended because of a radio failure on the source channelduring a handover between SDCCH-SDCCH or SDCCH-TCH.
It is this counter in the source cell that is updated. If the target cell lies within the same BSC, alsocounter 001005 in the target cell is updated along with this counter.
Impact: HO failure and call cleared
Updated: When an SDCCH transaction ends because of a radio failure (HO failure) on the sourcechannel during a handover attempt and the RRM releases the SDCCH.
This counter is updated in call phases 9-11 only.
See figure Unsuccessful SDCCH internal inter-cell handover, BTS sends CONNECTION_FAILUREmessage.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001005: TRANSACTIONS FAIL DUE RADIO ON TARGET CHANNEL
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
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3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.6 001005 / TRANSACTIONS FAIL DUE RADIO ONTARGET CHANNEL
Counter ID: 001005 Network element name: TRANSACTIONS FAIL DUE RADIOON TARGET CHANNEL
Version: 2.1 NetAct name: SDCCH_RF_NEW_HO
Description: Number of SDCCH transactions ended because of a radio failure on the target channelduring an SDCCH HO.
Impact: HO failure, the call may possibly be cleared
Reason for the impact: Since the MS cannot access the target channel, a radio failure occurs. Theunsuccessful seizure may have been caused by a missing indication of call establishment, missingdetection of HO, missing indication of the HO completed, or corrupted messages related to the HO.
Updated: When an SDCCH transaction ends because of a radio failure on the target channel during ahandover attempt and the RRM releases the SDCCH.
This counter is updated in call phases 12-14 only.
See figure Unsuccessful SDCCH internal intra-cell handover, CONNECTION_FAILURE messagecomes to the target channel during handover.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
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2.7 001006 / SUCCESS SEIZURE FOR HO
Counter ID: 001006 Network element name: SUCCESS SEIZURE FOR HO
Version: 2.1 NetAct name: SDCCH_HO_SEIZ
Description: Number of successful SDCCH seizures for a handover.
Updated: When the RRM allocates an SDCCH as a response to an SDCCH request in a handoverattempt.
See figures:- Successful SDCCH internal intra-cell handover- Successful SDCCH internal inter-cell handover- Successful SDCCH external handover target
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.8 001007 / SUCCESS SEIZURE FOR IMMEDIATEASSIGNMENT
Counter ID: 001007 Network element name: SUCCESS SEIZURE FORIMMEDIATE ASSIGNMENT
Version: 2.1 NetAct name: SDCCH_ASSIGN
Description: Number of successful seizures of SDCCH for an immediate assignment.
Updated: When the RRM allocates an SDCCH for an immediate assignment in a call attempt.
See figures:- Basic call with counters- Reconfiguration from TCH to SDCCH
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
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Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.9 001008 / SUCCESS TCH SEIZURE FOR HO
Counter ID: 001008 Network element name: SUCCESS TCH SEIZURE FOR HO
Version: 2.1 NetAct name: TCH_HO_SEIZ
Description: Number of successful requests for a TCH in a handover.
Updated: When the RRM allocates a TCH as a response to a TCH request in a handover attempt.The channel is reserved by the RRM, but the success of the HO is not known in this phase.
See figures:- Successful internal intra-cell handover- Internal intra-cell HO, successful TCH queuing- Successful internal inter-cell handover- Successful external handover, target
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.10 001009 / SUCCESS TCH SEIZURE FOR NORMALASSIGNMENT
Counter ID: 001009 Network element name: SUCCESS TCH SEIZURE FORNORMAL ASSIGNMENT
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Version: 2.1 NetAct name: TCH_NORM_SEIZ
Description: Number of successful requests for a TCH in a normal assignment.
Updated: When the RRM allocates a TCH as a response to a TCH request in a call attempt.
See figures:- Basic call with counters- Basic call with priority subscriber- Successful TCH queuing- Successful forced release- Successful forced handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.11 001010 / TCH REQUEST SUCCESS ANDUNSUCCESS
Counter ID: 001010 Network element name: TCH REQUEST SUCCESS ANDUNSUCCESS
Version: 2.1 NetAct name: TCH_REQUESTDescription: Total number of requests for a TCH (successful and unsuccessful).Updated: When the RRM receives a request for a TCH either in a call or a handover attempt.
See figures:- Basic call with counters- Basic call with priority subscriber- FACCH call setup due to SDCCH congestion with counters- FACCH call setup because of SDCCH congestion- Basic call, no free TCH and queuing or directed retry is not allowed- Successful TCH queuing- Basic call, no free TCHs, unsuccessful queuing and directed retry not activated- TCH assignment failure with cause switch_circuit_pool, queuing and directed retry not allowed- Unsuccessful trunk reservation- Successful internal intra-cell handover- Internal intra-cell HO, successful TCH queuing- Unsuccessful underlay overlay internal intra-cell handover, queuing not allowed
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- Internal intra-cell handover, unsuccessful TCH queuing- Internal directed retry- Successful internal inter-cell handover- Successful external handover, target- Successful forced release- Unsuccessful forced release- Unsuccessful forced release with external handover- Successful forced handover- Unsuccessful forced handover- Unsuccessful forced handover with external handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.12 001011 / TCH REQUEST REJECTED DUE TO LACK
Counter ID: 001011 Network element name: TCH REQUEST REJECTED DUETO LACK
Version: 2.1 NetAct name: TCH_REQ_REJ_LACKDescription: Number of requests for TCHs that are rejected because there are no radio resourcesavailable. This counter is also updated when a request for TCH is rejected because of a mismatchbetween the types of the requested channel and the A interface circuit.
See also counter 004079.
Updated: When the RRM has no TCHs available for either call or HO attempt requests, or the RRMchanges the A interface circuit pool before the TCH allocation. This counter may be updatedimmediately after a TCH request or, in case of queuing, when the queuing timer expires.
NOTE! In case of DR this counter is updated as follows:
1) When a call is removed from the queue because of a DR attempt, this counter is NOT updated onthe SOURCE side, instead counter 001173 is updated.2) If queuing is not used or the queuing timer expires before a DR attempt, this counter is updated onthe SOURCE side.3) On the TARGET side, this counter is updated in case of congestion (blocking).
See figures:- Basic call without counters
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- Basic call, no free TCHs, unsuccessful queuing and directed retry not activated- TCH assignment failure with cause switch_circuit_pool, queuing and directed retry not allowed- Unsuccessful underlay overlay internal intra-cell handover, queuing not allowed- Internal intra-cell handover, unsuccessful TCH queuing- Unsuccessful forced release- Unsuccessful forced release with external handover- Unsuccessful forced handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
004079: CAUSE DIR RETRY
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release: S11
2.13 001012 / TRANSACTIONS ENDED DUE TO BSSPROBLEM
Counter ID: 001012 Network element name: TRANSACTIONS ENDED DUE TOBSS PROBLEM
Version: 2.1 NetAct name: TCH_BSS_FAIL
Description: Number of TCH transactions ended because of BSS problems.
Impact: See descriptions of counters 001045, 001046, 001047 and 001051.
Updated: When one of the counters 001045, 001046, 001047, or 001051 is updated. This counterrepresents their sum.
See figures:- Unsuccessful TCH activation, timer expires while waiting for CHANNEL_ACTIVATION_ACK message- TCH assignment failure, MSC sends CLEAR_COMMAND message- TRX or TSL is blocked with different causes during a call- Unsuccessful internal intra-cell handover, timer expires while waiting forCHANNEL_ACTIVATION_ACK message- Unsuccessful external handover, source BSC, timer expires while waiting for CLEAR_COMMANDmessage- Unsuccessful external handover, MS sends a handover failure- Dropped call between ASSIGNMENT COMPLETE and DISCONNECT
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Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.14 001013 / TRANSACTIONS ENDED DUE RADIO FAIL
Counter ID: 001013 Network element name: TRANSACTIONS ENDED DUERADIO FAIL
Version: 2.1 NetAct name: TCH_RADIO_FAIL
Description: Number of TCH transactions ended because of a radio failure.
Impact: Call cleared
Updated: When a TCH transaction ends because of a radio failure and the RRM releases the TCH.This counter is typical in connection with coverage problems. ERROR INDICATION is sent by the BTSto the BSC in the following cases:- Sequence error in a received message (the case where retransmission is not possible).- Timer T200 has expired N200 +1 times (MS does not respond any more).- Unsolicited DM response when link is established.
This counter is updated in call phases 1-8 or 15 only.
See figures:- Timer T3107 expires while waiting for ASSIGNMENT_COMPLETE message- Dropped call between ASSIGNMENT COMPLETE and DISCONNECT
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release: S11
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2.15 001014 / TRANSACTIONS ENDED DUE SOURCECHANNEL FAIL DURING HO
Counter ID: 001014 Network element name: TRANSACTIONS ENDED DUESOURCE CHANNEL FAIL DURING HO
Version: 2.1 NetAct name: TCH_RF_OLD_HO
Description: Number of TCH transactions ended because of a radio failure on the source channelduring a handover attempt.
Impact: HO failure and call cleared
Updated: When a TCH transaction ends because of a radio failure (HO failure) on the source channelduring a handover attempt.
This counter is updated in call phases 9-11 only.
See figure Unsuccessful internal intra-cell handover, timer expires on the source channel, call cleared.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.16 001015 / TRANSACTIONS ENDED DUE TARGETCHANNEL FAIL
Counter ID: 001015 Network element name: TRANSACTIONS ENDED DUETARGET CHANNEL FAIL
Version: 2.1 NetAct name: TCH_RF_NEW_HO
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Description: A TCH transaction ends because of a radio failure (HO failure) on the target channelduring a handover attempt.
Counter 001088 is also updated along with this counter if the MS fails to return to the old channelduring an inter-BSC handover.
Impact: HO failure, the call may possibly be cleared
Reason for the impact: Since the MS cannot access the target channel, a radio failure occurs. It maybe caused by missing indication of call establishment, missing detection of HO, missing indication ofthe HO completed or corrupted messages related to HO.
Updated: When a TCH transaction ends because of a radio failure on the target channel during ahandover attempt.
This counter is updated in call phases 12-14 only.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001088: TCH A IF FAIL SOURCE
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.17 001016 / CALL ATTEMPTS IN THE QUEUE
Counter ID: 001016 Network element name: CALL ATTEMPTS IN THE QUEUEVersion: 2.1 NetAct name: TCH_QD_CALL_ATTDescription: Number of call attempts set in the queue for a TCH.
Counter 001010 is updated along with this counter.
Updated: When the RRM puts a TCH request for call attempt in the queue since it has no TCHs ofthe requested kind available.
See figures:- Successful TCH queuing- Basic call, no free TCHs, unsuccessful queuing and directed retry not activated
Logical type: Sum Trigger type: Event Sampling interval:
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Unit: Integer number Range: Example values:
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.18 001017 / HANDOVER ATTEMPTS IN THE QUEUE
Counter ID: 001017 Network element name: HANDOVER ATTEMPTS IN THEQUEUE
Version: 2.1 NetAct name: TCH_QD_HO_ATTDescription: Number of HO attempts set in the queue for a TCH.
Counter 001010 is updated along with this counter.
Updated: When the RRM sets a TCH request for a handover attempt in the queue since it has noTCHs of the requested kind available.
See figures:- Internal intra-cell HO, successful TCH queuing- Internal intra-cell handover, unsuccessful TCH queuing- Internal directed retry
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
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2.19 001018 / AVE QUEUE LENGTH FOR CHANNELSEIZURE REQUEST
Counter ID: 001018 Network element name: AVE QUEUE LENGTH FORCHANNEL SEIZURE REQUEST
Version: 2.1 NetAct name: AVE_Q_SEIZ_REQDescription: Average number of requests for channel seizure in the queue.
Updated: Every 20 seconds, as averaging takes place once in the measurement period. The samplecounter is updated when a request is set in the queue or removed from it. Updated only to normalTRX record, not to extended TRX record.
See figure Average counter updating.
Logical type: Sum Trigger type: Sample Sampling interval: 20 s
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.20 001019 / QUEUE DENOMINATOR 1
Counter ID: 001019 Network element name: QUEUE DENOMINATOR 1Version: 2.1 NetAct name: QUEUE_DENOM1Description: Denominator of the average number of requests for channel seizure (always > 0).Updated:
Logical type: Sum Trigger type: Sample Sampling interval: 20 s
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
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Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.21 001020 / AVE QUEUE TIME OF CALL ATTEMPTS
Counter ID: 001020 Network element name: AVE QUEUE TIME OF CALLATTEMPTS
Version: 2.1 NetAct name: AVE_Q_TIM_CALL_ATTDescription: The average time for which call attempts are kept in the queue (the unit of the value is 10ms).
In a successful case counters 001009 and 001021 are updated along with this counter. In anunsuccessful case counters 001021, 001024 and 001060 are updated along with this counter.
Updated: When a TCH request for a call attempt is removed from the queue (both in a successful andunsuccessful case).
See figures:- Successful TCH queuing- Basic call, no free TCHs, unsuccessful queuing and directed retry not activated
Logical type: Sum Trigger type: Duration Sampling interval:
Unit: 10 ms Range: Example values:
Dependencies with other counters:
001009: SUCCESS TCH SEIZURE FOR NORMAL ASSIGNMENT
001021: QUEUE DENOMINATOR 2
001024: NOT SERVED QUEUED CALL ATTEMPTS
001060: QUE ALL ASSIGN REQ FAIL
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
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2.22 001021 / QUEUE DENOMINATOR 2
Counter ID: 001021 Network element name: QUEUE DENOMINATOR 2Version: 2.1 NetAct name: QUEUE_DENOM2Description: Denominator of the average time for which call attempts are kept in the queue (always >0).Updated: See figures:- Successful TCH queuing- Basic call, no free TCHs, unsuccessful queuing and directed retry not activated
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.23 001022 / AVE QUEUE TIME OF HO ATTEMPTS
Counter ID: 001022 Network element name: AVE QUEUE TIME OF HOATTEMPTS
Version: 2.1 NetAct name: AVE_Q_TIM_HO_ATTDescription: The average time for which HO attempts are kept in the queue (the unit of the value is 10ms).
In a successful case counters 001008 and 001023 are updated along with this counter. In anunsuccessful case counters 001023, 001025 and 001068 are updated along with this counter.
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Updated: When a TCH request for a handover attempt is removed from the queue (both in asuccessful and unsuccessful case).
See figures:- Internal intra-cell HO, successful TCH queuing- Internal intra-cell handover, unsuccessful TCH queuing- Internal directed retry
Logical type: Sum Trigger type: Duration Sampling interval:
Unit: 10 ms Range: Example values:
Dependencies with other counters:
001008: SUCCESS TCH SEIZURE FOR HO
001023: QUEUE DENOMINATOR 3
001025: NOT SERVED QUEUED HO ATTEMPTS
001068: QUE ALL HO REQ FAIL
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.24 001023 / QUEUE DENOMINATOR 3
Counter ID: 001023 Network element name: QUEUE DENOMINATOR 3Version: 2.1 NetAct name: QUEUE_DENOM3Description: Denominator of the average time for which HO attempts are kept in the queue (always >0).Updated: See figures:- Internal intra-cell HO, successful TCH queuing- Internal intra-cell handover, unsuccessful TCH queuing- Internal directed retry
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.25 001024 / NOT SERVED QUEUED CALL ATTEMPTS
Counter ID: 001024 Network element name: NOT SERVED QUEUED CALLATTEMPTS
Version: 2.1 NetAct name: UNSRV_QD_CALL_ATTDescription: Number of call attempts in the queue which were not served.
Counters 001020, 001021 and 001060 are updated along with this counter.
Updated: When a call attempt is removed from the queue because a timer expires, or the call attemptis substituted by another attempt of higher priority. NOTE! This counter is not updated in DR (neitherin a successful or unsuccessful DR).
See figure Basic call, no free TCHs, unsuccessful queuing and directed retry not activated.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001020: AVE QUEUE TIME OF CALL ATTEMPTS
001021: QUEUE DENOMINATOR 2
001060: QUE ALL ASSIGN REQ FAIL
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
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2.26 001025 / NOT SERVED QUEUED HO ATTEMPTS
Counter ID: 001025 Network element name: NOT SERVED QUEUED HOATTEMPTS
Version: 2.1 NetAct name: UNSRV_QD_HO_ATTDescription: Number of HO attempts in the queue which were not served.
Counters 001022, 001023 and 001068 are updated along with this counter.
Updated: When a handover attempt is removed from the queue because a timer expires, or the HOattempt is substituted by another attempt of higher priority.
See figure Internal intra-cell handover, unsuccessful TCH queuing.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001022: AVE QUEUE TIME OF HO ATTEMPTS
001023: QUEUE DENOMINATOR 3
001068: QUE ALL HO REQ FAIL
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
2.27 001026 / TCH CALL REQ
Counter ID: 001026 Network element name: TCH CALL REQVersion: 2.1 NetAct name: TCH_CALL_REQ
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Description: Number of TCH requests for a normal assignment (both successful and unsuccessful).
Counter 001010 is updated along with this counter.
Updated: When the RRM receives a TCH request in a call attempt.
See figures:- Basic call with counters- Basic call with priority subscriber- Successful TCH queuing- Basic call, no free TCHs, unsuccessful queuing and directed retry not activated- TCH assignment failure with cause switch_circuit_pool, queuing and directed retry not allowed- Unsuccessful trunk reservation- Internal directed retry- Successful forced release- Unsuccessful forced release- Successful forced handover- Unsuccessful forced handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
2.28 001027 / SDCCH ACT FAIL
Counter ID: 001027 Network element name: SDCCH ACT FAIL
Version: 2.1 NetAct name: SDCCH_ACT_FAIL
Description: Number of SDCCH transactions that are ended because of a failure in the activation of achannel either during a call or HO attempt.
Impact:- Call cleared- HO failure
Reason for the impact: External / Abis interface
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Updated: When either of the counters 001072 and 001074 is updated. This counter represents theirsum.
See figures:- Unsuccessful SDCCH activation- Unsuccessful SDCCH internal intra-cell handover, unsuccessful channel activation
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
2.29 001028 / TCH ACT FAIL
Counter ID: 001028 Network element name: TCH ACT FAIL
Version: 2.1 NetAct name: TCH_ACT_FAIL
Description: Number of TCH transactions that are ended because of a failure in the activation of achannel either during a call or HO attempt.
Impact:- Call cleared- HO failure
Reason for the impact: Abis Interface
Updated: When either of the counters 001081 and 001083 is updated. This counter represents theirsum.
See figures:- Unsuccessful TCH activation- Unsuccessful internal inter-cell handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
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3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
2.30 001029 / TCH TR FAIL
Counter ID: 001029 Network element name: TCH TR FAIL
Version: 2.1 NetAct name: TCH_TR_FAIL
Description: Number of TCH transactions that are ended because of a transcoder failure.
Impact: Call cleared
Updated: When a TCH transaction ends because of a transcoder failure during a call attempt and theRRM releases the TCH. These failures can also contain situations when the timer T3109 expires in aBSC in call release phase while waiting for the Release Indication. The MS subscriber does not seethese failures caused by the T3109 expiry as real drop calls.
This counter is updated in call phases 1-8 or 15 only.
See figure CONNECTION_FAILURE message with cause transcoder_failure during a call.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
2.31 001030 / TCH TR FAIL SOURCE
Counter ID: 001030 Network element name: TCH TR FAIL SOURCE
Version: 2.1 NetAct name: TCH_TR_FAIL_OLD
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Description: Number of TCH transactions that are ended because of a transcoder failure on the sourcechannel during a handover on a TCH.
Impact: HO failure and call cleared
Updated: When a TCH transaction ends because of a transcoder failure on the source channel duringa handover attempt and the RRM releases the TCH. This happens before the RRM receives amessage from the MS stating that the HO or assignment is completed.
This counter is updated in call phases 9-11 only.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
2.32 001031 / TCH TR FAIL TARGET
Counter ID: 001031 Network element name: TCH TR FAIL TARGET
Version: 2.1 NetAct name: TCH_TR_FAIL_NEW
Description: Number of TCH transactions that are ended because of a transcoder failure on the targetchannel during a handover on a TCH.
Impact: HO failure, the call may possibly be cleared
Updated: When a TCH transaction ends because of a transcoder failure on the target channel duringa handover attempt and the RRM releases the TCH. This happens before the RRM receives amessage from the MS stating that the HO or assignment is completed.
This counter is updated in call phases 12-14 only.
See figure Unsuccessful internal intra-cell handover, CONNECTION_FAILURE message with causeremote_transcoder_failure comes to the target channel.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
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3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
2.33 001032 / NOT RELEVANT
Counter ID: 001032 Network element name: NOT RELEVANT
Version: 2.0 NetAct name: SDCCH_FAST_SEIZ
Description: Not in use
Updated:
Logical type: Trigger type: Sampling interval:
Unit: Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
2.34 001033 / SDCCH ABIS PROBL
Counter ID: 001033 Network element name: SDCCH ABIS PROBL
Version: 2.1 NetAct name: SDCCH_ABIS_FAIL
Description: Number of SDCCH transactions that are ended because of a failure in the Abis interface.
Impact:- Call cleared- HO failure
Reason for the impact: External / Abis interface
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Updated: When any of the counters 001075, 001076 or 001077 is updated. This counter representstheir sum.
See figures:- Unsuccessful SDCCH activation, timer expires while waiting for CHANNEL_ACTIVATION_ACKmessage- Unsuccessful SDCCH activation, timer expires while waiting for PHYSICAL_CONTEXT_CONFIRMmessage- TRX/TSL is blocked with different causes during an SDCCH channel activation- Unsuccessful SDCCH internal intra-cell handover, timer expires while waiting forCHANNEL_ACTIVATION_ACK message
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
2.35 001034 / SDCCH A IF PROBL
Counter ID: 001034 Network element name: SDCCH A IF PROBL
Version: 2.1 NetAct name: SDCCH_A_IF_FAIL
Description: Number of SDCCH transactions that are ended because of a failure in the A interface.
Impact:- Call cleared- HO failure
Reason for the impact: External / A interface
Updated: When any of the counters 001078, 001079, and 001080 is updated. This counter representstheir sum.
See figures:- SDCCH assignment failure- Unsuccessful SDCCH external handover, timer expires while waiting for CLEAR_COMMANDmessage
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
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Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
2.36 001035 / SDCCH LAPD FAIL
Counter ID: 001035 Network element name: SDCCH LAPD FAIL
Version: 2.1 NetAct name: SDCCH_LAPD_FAIL
Description: Number of SDCCH transactions that are ended because of an LAPD failure. (The blockedTRX is in one of these substates: signalling link fault or PCM fault.)
Impact:- Call cleared- HO failure
Reason for the impact: External / Abis interface
Updated: When an SDCCH transaction ends because of a TRX blocked by an LAPD failure and theRRM releases the SDCCH.
See figure TRX/TSL is blocked with different causes during an SDCCH channel activation.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
2.37 001036 / SDCCH BTS FAIL
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Counter ID: 001036 Network element name: SDCCH BTS FAIL
Version: 2.1 NetAct name: SDCCH_BTS_FAIL
Description: Number of SDCCH transactions that are ended because of a BTS failure. (The blockedTRX is in one of these substates: FU fault, CU fault, BTS reset, BCF reset, both CU and FU fault,BCF fault.)
Impact: Call cleared
Updated: When an SDCCH transaction ends because of a TRX being blocked by a BTS failure andthe RRM releases the SDCCH.
See figure TRX/TSL is blocked with different causes during an SDCCH channel activation.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
2.38 001037 / SDCCH USER ACT
Counter ID: 001037 Network element name: SDCCH USER ACT
Version: 2.1 NetAct name: SDCCH_USER_ACT
Description: Number of SDCCH transactions that are ended because of user actions. (The TRX/TSL isin substate blocked by the user.)
Impact:- Call cleared- HO failure
Updated: When the user disconnects a busy SDCCH by blocking the TSL/TRX with an MMLcommand. The transaction ends and the SDCCH is released.
See figure TRX/TSL is blocked with different causes during an SDCCH channel activation.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
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Related to feature: Related to standard:
3GPP Measurement name (Clause header):3GPP Measu