traffic measurement

GSM/EDGE BSS, Rel. RG30(BSS), Operating Documentation, Issue 02

Reference

1 Traffic Measurement

DN9813827

Issue 14-1Approval Date 2012-10-29

Confidential

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2 DN9813827


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DN9813827 3



Table of contentsThis document has 307 pages.

Summary of Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

1 1 Traffic Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2 Counters of Traffic measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282.1 Counters of Traffic measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282.1.1 001000 / SEIZURE ATTEMPTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282.1.2 001001 / SEIZURE ATTEMPTS WITH BUSY SDCCH . . . . . . . . . . . . . 282.1.3 001002 / TRANSACTIONS FAIL DUE TO BSS FAIL . . . . . . . . . . . . . . 292.1.4 001003 / TRANSACTIONS FAIL DUE TO RADIO FAIL . . . . . . . . . . . . 302.1.5 001004 / TRANSACTIONS FAIL DUE RADIO ON SOURCE CHANNEL

DURING HO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302.1.6 001005 / TRANSACTIONS FAIL DUE RADIO ON TARGET CHANNEL312.1.7 001006 / SUCCESS SEIZURE FOR HO. . . . . . . . . . . . . . . . . . . . . . . . 312.1.8 001007 / SUCCESS SEIZURE FOR IMMEDIATE ASSIGNMENT . . . . 322.1.9 001008 / SUCCESS TCH SEIZURE FOR HO. . . . . . . . . . . . . . . . . . . . 322.1.10 001009 / SUCCESS TCH SEIZURE FOR NORMAL ASSIGNMENT . . 332.1.11 001010 / TCH REQUEST SUCCESS AND UNSUCCESS . . . . . . . . . . 332.1.12 001011 / TCH REQUEST REJECTED DUE TO LACK . . . . . . . . . . . . . 342.1.13 001012 / TRANSACTIONS ENDED DUE TO BSS PROBLEM. . . . . . . 352.1.14 001013 / TRANSACTIONS ENDED DUE RADIO FAIL. . . . . . . . . . . . . 362.1.15 001014 / TRANSACTIONS ENDED DUE SOURCE CHANNEL FAIL DUR-

ING HO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 362.1.16 001015 / TRANSACTIONS ENDED DUE TARGET CHANNEL FAIL . . 372.1.17 001016 / CALL ATTEMPTS IN THE QUEUE . . . . . . . . . . . . . . . . . . . . 382.1.18 001017 / HANDOVER ATTEMPTS IN THE QUEUE. . . . . . . . . . . . . . . 382.1.19 001018 / AVE QUEUE LENGTH FOR CHANNEL SEIZURE REQUEST .

392.1.20 001019 / QUEUE DENOMINATOR 1 . . . . . . . . . . . . . . . . . . . . . . . . . . 392.1.21 001020 / AVE QUEUE TIME OF CALL ATTEMPTS . . . . . . . . . . . . . . . 402.1.22 001021 / QUEUE DENOMINATOR 2 . . . . . . . . . . . . . . . . . . . . . . . . . . 402.1.23 001022 / AVE QUEUE TIME OF HO ATTEMPTS. . . . . . . . . . . . . . . . . 412.1.24 001023 / QUEUE DENOMINATOR 3 . . . . . . . . . . . . . . . . . . . . . . . . . . 412.1.25 001024 / NOT SERVED QUEUED CALL ATTEMPTS . . . . . . . . . . . . . 422.1.26 001025 / NOT SERVED QUEUED HO ATTEMPTS . . . . . . . . . . . . . . . 432.1.27 001026 / TCH CALL REQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 432.1.28 001027 / SDCCH ACT FAIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 442.1.29 001028 / TCH ACT FAIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 442.1.30 001029 / TCH TR FAIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 452.1.31 001030 / TCH TR FAIL SOURCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 452.1.32 001031 / TCH TR FAIL TARGET. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 462.1.33 001032 / NOT RELEVANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 462.1.34 001033 / SDCCH ABIS PROBL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 472.1.35 001034 / SDCCH A IF PROBL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 482.1.36 001035 / SDCCH LAPD FAIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

4 DN9813827



2.1.37 001036 / SDCCH BTS FAIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 492.1.38 001037 / SDCCH USER ACT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 492.1.39 001038 / SDCCH BCSU RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 502.1.40 001039 / SDCCH NETW ACT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 502.1.41 001040 / TRUNK RES INVOC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 512.1.42 001041 / SUCC TRUNK RES INVOC. . . . . . . . . . . . . . . . . . . . . . . . . . . 512.1.43 001042 / TRUNK RES INVOC RES REFUSED . . . . . . . . . . . . . . . . . . . 522.1.44 001043 / TCH REQ FACCH CALLSET . . . . . . . . . . . . . . . . . . . . . . . . . 522.1.45 001044 / TCH SEIZ FACCH CALL SET . . . . . . . . . . . . . . . . . . . . . . . . . 532.1.46 001045 / TCH ABIS PROBL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 532.1.47 001046 / TCH LAPD FAIL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 542.1.48 001047 / TCH BTS FAIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 542.1.49 001048 / TCH USER ACT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 552.1.50 001049 / TCH BCSU RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 552.1.51 001050 / TCH NETW ACT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 562.1.52 001051 / TCH A IF PROBL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 562.1.53 001052 / TRHO REQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 572.1.54 001053 / TRHO ENQUIRIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 582.1.55 001054 / FOR REL ASSIGN REQ ATT . . . . . . . . . . . . . . . . . . . . . . . . . 582.1.56 001055 / FOR HO ASSIGN REQ ATT . . . . . . . . . . . . . . . . . . . . . . . . . . 592.1.57 001056 / QUE ALL ASSIGN REQ ATT. . . . . . . . . . . . . . . . . . . . . . . . . . 592.1.58 001057 / QUE NALL ASSIGN REQ ATT . . . . . . . . . . . . . . . . . . . . . . . . 602.1.59 001058 / FOR REL ASSIGN REQ FAIL . . . . . . . . . . . . . . . . . . . . . . . . . 602.1.60 001059 / FOR HO ASSIGN REQ FAIL . . . . . . . . . . . . . . . . . . . . . . . . . . 612.1.61 001060 / QUE ALL ASSIGN REQ FAIL . . . . . . . . . . . . . . . . . . . . . . . . . 622.1.62 001061 / QUE NALL ASSIGN REQ FAIL . . . . . . . . . . . . . . . . . . . . . . . . 622.1.63 001062 / FOR REL HO REQ ATT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 632.1.64 001063 / FOR HO HO REQ ATT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 632.1.65 001064 / QUE ALL HO REQ ATT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 642.1.66 001065 / QUE NALL HO REQ ATT . . . . . . . . . . . . . . . . . . . . . . . . . . . . 642.1.67 001066 / FOR REL HO REQ FAIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 652.1.68 001067 / FOR HO HO REQ FAIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 662.1.69 001068 / QUE ALL HO REQ FAIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 662.1.70 001069 / QUE NALL HO REQ FAIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . 672.1.71 001070 / FORCED RELEASES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 672.1.72 001071 / FORCED HANDOVERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 682.1.73 001072 / SDCCH ACT FAIL CALL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 682.1.74 001073 / NOT RELEVANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 692.1.75 001074 / SDCCH ACT FAIL TARGET . . . . . . . . . . . . . . . . . . . . . . . . . . 692.1.76 001075 / SDCCH ABIS FAIL CALL . . . . . . . . . . . . . . . . . . . . . . . . . . . . 702.1.77 001076 / SDCCH ABIS FAIL SOURCE . . . . . . . . . . . . . . . . . . . . . . . . . 712.1.78 001077 / SDCCH ABIS FAIL TARGET. . . . . . . . . . . . . . . . . . . . . . . . . . 712.1.79 001078 / SDCCH A IF FAIL CALL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 722.1.80 001079 / SDCCH A IF FAIL SOURCE . . . . . . . . . . . . . . . . . . . . . . . . . . 722.1.81 001080 / SDCCH A IF FAIL TARGET . . . . . . . . . . . . . . . . . . . . . . . . . . 732.1.82 001081 / TCH ACT FAIL CALL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 742.1.83 001082 / NOT RELEVANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

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2.1.84 001083 / TCH ACT FAIL TARGET . . . . . . . . . . . . . . . . . . . . . . . . . . . . 742.1.85 001084 / TCH ABIS FAIL CALL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 752.1.86 001085 / TCH ABIS FAIL SOURCE . . . . . . . . . . . . . . . . . . . . . . . . . . . 762.1.87 001086 / TCH ABIS FAIL NEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 762.1.88 001087 / TCH A IF FAIL CALL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 772.1.89 001088 / TCH A IF FAIL SOURCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 772.1.90 001089 / TCH A IF FAIL NEW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 782.1.91 001090 / TCH REQ UND OVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 792.1.92 001091 / TCH SEIZ UND OVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 792.1.93 001092 / TCH REJ REQ UND OVE. . . . . . . . . . . . . . . . . . . . . . . . . . . . 802.1.94 001093 / SUCC MOC TEST CALL . . . . . . . . . . . . . . . . . . . . . . . . . . . . 802.1.95 001094 / FAIL MOC TEST CALL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 812.1.96 001095 / PRI SUBSCR TCH REQ. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 812.1.97 001096 / PRI SUBSCR SUCC TCH SEIZ . . . . . . . . . . . . . . . . . . . . . . . 822.1.98 001097 / NO PRI SUBSCR REFUSED TCH REQ . . . . . . . . . . . . . . . . 822.1.99 001098 / TCH SEIZ ATT DUE SDCCH CON . . . . . . . . . . . . . . . . . . . . 832.1.100 001099 / TCH SEIZ DUE SDCCH CON . . . . . . . . . . . . . . . . . . . . . . . . 842.1.101 001100 / TRUNK TCH REJECTED FR REQ. . . . . . . . . . . . . . . . . . . . . 842.1.102 001101 / TRUNK TCH REJECTED HR REQ . . . . . . . . . . . . . . . . . . . . 852.1.103 001102 / FULL TCH REQ SUCC UNSUCC . . . . . . . . . . . . . . . . . . . . . 862.1.104 001103 / HALF TCH REQ SUCC UNSUCC . . . . . . . . . . . . . . . . . . . . . 862.1.105 001104 / TCH REQ FULL PREFERRED. . . . . . . . . . . . . . . . . . . . . . . . 872.1.106 001105 / TCH REQ HALF PREFERRED . . . . . . . . . . . . . . . . . . . . . . . 882.1.107 001106 / SUCC FULL TCH SEIZ. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 892.1.108 001107 / SUCC HALF TCH SEIZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 902.1.109 001108 / FULL TCH SEIZ SPEECH VER 1. . . . . . . . . . . . . . . . . . . . . . 902.1.110 001109 / FULL TCH SEIZ SPEECH VER 2. . . . . . . . . . . . . . . . . . . . . . 912.1.111 001110 / FULL TCH SEIZ SPEECH VER 3. . . . . . . . . . . . . . . . . . . . . . 922.1.112 001111 / HALF TCH SEIZ SPEECH VER 1 . . . . . . . . . . . . . . . . . . . . . 932.1.113 001112 / HALF TCH SEIZ SPEECH VER 2 . . . . . . . . . . . . . . . . . . . . . 942.1.114 001113 / HALF TCH SEIZ SPEECH VER 3 . . . . . . . . . . . . . . . . . . . . . 952.1.115 001114 / FULL TCH SEIZ NORM ASSIGNMENT. . . . . . . . . . . . . . . . . 962.1.116 001115 / HALF TCH SEIZ NORM ASSIGNMENT. . . . . . . . . . . . . . . . . 962.1.117 001116 / FULL TCH SEIZ INT HO CH RATE . . . . . . . . . . . . . . . . . . . . 972.1.118 001117 / HALF TCH SEIZ INT HO CH RATE . . . . . . . . . . . . . . . . . . . . 972.1.119 001118 / REJ TCH REQ DUE LACK FR . . . . . . . . . . . . . . . . . . . . . . . . 982.1.120 001119 / REJ TCH REQ DUE LACK HR. . . . . . . . . . . . . . . . . . . . . . . . 992.1.121 001120 / FULL TCH REJ DUE HR TRAF . . . . . . . . . . . . . . . . . . . . . . . 992.1.122 001121 / HALF TCH REJ DUE FR TRAF . . . . . . . . . . . . . . . . . . . . . . 1002.1.123 001122 / TCH REJ DUE REQ CH A IF CRC. . . . . . . . . . . . . . . . . . . . 1012.1.124 001123 / FULL TCH REQ FACCH CALL. . . . . . . . . . . . . . . . . . . . . . . 1022.1.125 001124 / TCH FACCH CALL CH RATE NOT DEF . . . . . . . . . . . . . . . 1032.1.126 001125 / SUCC FULL TCH SEIZ FACCH CALL . . . . . . . . . . . . . . . . . 1032.1.127 001126 / SUCC HALF TCH SEIZ FACCH CALL. . . . . . . . . . . . . . . . . 1042.1.128 001127 / ENDED DUE TRANSC FR RATE 1 . . . . . . . . . . . . . . . . . . . 1042.1.129 001128 / ENDED DUE TRANSC FR RATE 2 . . . . . . . . . . . . . . . . . . . 1052.1.130 001129 / ENDED DUE TRANSC FR RATE 3 . . . . . . . . . . . . . . . . . . . 106

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2.1.131 001130 / ENDED DUE TRANSC HR RATE 1 . . . . . . . . . . . . . . . . . . . 1062.1.132 001131 / ENDED DUE TRANSC HR RATE 2 . . . . . . . . . . . . . . . . . . . 1072.1.133 001132 / ENDED DUE TRANSC HR RATE 3 . . . . . . . . . . . . . . . . . . . 1072.1.134 001133 / FULL TCH TR FAIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1082.1.135 001134 / HALF TCH TR FAIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1092.1.136 001135 / SDCCH SEIZ ATT FOR MOC . . . . . . . . . . . . . . . . . . . . . . . . 1102.1.137 001136 / SDCCH SEIZ ATT FOR MTC . . . . . . . . . . . . . . . . . . . . . . . . 1102.1.138 001137 / TCH SEIZ ATT FOR MOC. . . . . . . . . . . . . . . . . . . . . . . . . . . 1112.1.139 001138 / TCH SEIZ ATT FOR MTC . . . . . . . . . . . . . . . . . . . . . . . . . . . 1122.1.140 001139 / TCH REL BECAUSE OF RADIO FAIL . . . . . . . . . . . . . . . . . 1132.1.141 001140 / TCH REL DUE TO BSS FAIL . . . . . . . . . . . . . . . . . . . . . . . . 1142.1.142 001141 / TCH SEIZ FAILS DUE TO CONG . . . . . . . . . . . . . . . . . . . . . 1142.1.143 001142 / QUEUED URGENT HANDOVER ATTEMPTS . . . . . . . . . . . 1152.1.144 001143 / AVE QUE TIME OF URGENT HO ATTEMPTS. . . . . . . . . . . 1162.1.145 001144 / QUE DENOMINATOR 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1162.1.146 001145 / AVE QUE TIME OF NON URGENT HO ATTEMPTS . . . . . . 1172.1.147 001146 / QUE DENOMINATOR 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1182.1.148 001147 / QUEUED URG HO ATTS NOT SERVED . . . . . . . . . . . . . . . 1182.1.149 001148 / MS SUCC TCH SEIZURE FOR ASSIGNMENT COMPLETE 1192.1.150 001149 / CALLS ENDED BY USER DURING DADL/B SETUP . . . . . . 1202.1.151 001150 / SUCC TCH SEIZ WHEN GOOD QUAL IN ADJACENTS . . . 1202.1.152 001151 / TCH REQ REJ DUE TO BAD QUALITY IN ADJACENT . . . . 1212.1.153 001152 / SUCC TCH SEIZ WHEN QUAL BETW GOOD AND BAD IN AD-

JACENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1212.1.154 001153 / TCH REQ REJ WHEN QUAL BETW GOOD AND BAD IN ADJA-

CENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1222.1.155 001154 / DYNAMIC SDCCH RECONFIGURATION ATTEMPT. . . . . . 1222.1.156 001155 / UNSUCC IMM ASS SDCCH ATTEMPT . . . . . . . . . . . . . . . . 1232.1.157 001156 / HSCSD TCH REQ WITH 14,4 . . . . . . . . . . . . . . . . . . . . . . . . 1232.1.158 001157 / HSCSD SUCC TCH SEIZ WITH 14,4 . . . . . . . . . . . . . . . . . . 1242.1.159 001158 / HSCSD TRANSP TCH REQ . . . . . . . . . . . . . . . . . . . . . . . . . 1252.1.160 001159 / HSCSD SUCC TRANSP TCH SEIZ . . . . . . . . . . . . . . . . . . . 1252.1.161 001160 / HSCSD REQ FOR CALL SETUP . . . . . . . . . . . . . . . . . . . . . 1262.1.162 001161 / HSCSD TCH REQ FOR HO . . . . . . . . . . . . . . . . . . . . . . . . . 1262.1.163 001162 / HSCSD SUCC TCH SEIZ FOR CALL SETUP . . . . . . . . . . . 1272.1.164 001163 / HSCSD SUCC TCH SEIZ FOR HO. . . . . . . . . . . . . . . . . . . . 1272.1.165 001164 / HSCSD CON REL DUE TO FAIL . . . . . . . . . . . . . . . . . . . . . 1282.1.166 001165 / SUCCESS TCH SEIZURE FOR DIRECT ACCESS . . . . . . . 1292.1.167 001166 / TCH REQUEST FOR DIRECT ACCESS REJECTED DUE TO

LACK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1292.1.168 001167 / TCH REQUEST FOR A BSC CONTROLLED TRHO PROCE-

DURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1302.1.169 001168 / SUCC TCH SEIZ FOR A BSC CONTROLLED TRHO . . . . . 1302.1.170 001169 / REJ TCH SEIZ FOR A BSC CONTROLLED TRHO DUE LACK

OF RESOURCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1312.1.171 001170 / SUCCESSFUL TCH SEIZURES FOR DADLB HO . . . . . . . . 1312.1.172 001171 / TCH REQUEST IN DADLB HO REJECTED . . . . . . . . . . . . . 1322.1.173 001172 / DADLB START DUE TO EXCEEDED LOAD . . . . . . . . . . . . 133

DN9813827 7



2.1.174 001173 / REMOVAL FROM QUE DUE TO DR . . . . . . . . . . . . . . . . . . 1332.1.175 001174 / GPRS TER UPGRD REQ. . . . . . . . . . . . . . . . . . . . . . . . . . . 1342.1.176 001175 / INCOMPL SERV GPRS TER UPGR REQ . . . . . . . . . . . . . . 1342.1.177 001176 / GPRS TER UG REJ DUE CSW TR . . . . . . . . . . . . . . . . . . . 1352.1.178 001177 / GPRS TER UG REJ DUE LACK PSW RES. . . . . . . . . . . . . 1362.1.179 001178 / GPRS TER UG REJ DUE LACK PCU CAP . . . . . . . . . . . . . 1362.1.180 001179 / GPRS TER DG DUE INC IN CSW TR . . . . . . . . . . . . . . . . . 1372.1.181 001180 / GPRS TER UG DUE DEC CSW TR. . . . . . . . . . . . . . . . . . . 1372.1.182 001181 / GPRS TER DOWNGRADE REQ . . . . . . . . . . . . . . . . . . . . . 1382.1.183 001182 / FULL TCH SEIZ INTRA AMR HO. . . . . . . . . . . . . . . . . . . . . 1382.1.184 001183 / HALF TCH SEIZ INTRA AMR HO . . . . . . . . . . . . . . . . . . . . 1392.1.185 001184 / TCH CALL REQ FOR AMR . . . . . . . . . . . . . . . . . . . . . . . . . 1402.1.186 001185 / SUCCESSFUL AMR CODEC SET DOWNGRADES . . . . . . 1402.1.187 001186 / UNSUCCESSFUL AMR CODEC SET DOWNGRADES . . . 1412.1.188 001187 / SUCCESSFUL AMR CODEC SET UPGRADES . . . . . . . . . 1412.1.189 001188 / UNSUCCESSFUL AMR CODEC SET UPGRADES . . . . . . 1422.1.190 001189 / TCH REQ FOR 96 DAT CALL . . . . . . . . . . . . . . . . . . . . . . . 1432.1.191 001190 / SUCC TCH SEIZ FOR 96 DAT CALL. . . . . . . . . . . . . . . . . . 1432.1.192 001191 / SDCCH DROP CALL AND HO. . . . . . . . . . . . . . . . . . . . . . . 1442.1.193 001192 / TCH REQUESTS FOR CALL ATTEMPT . . . . . . . . . . . . . . . 1442.1.194 001193 / SUCCESSFUL TCH SEIZURES FOR CALL ATTEMPT . . . 1452.1.195 001194 / TCH ACCESS REJECTED DUE LOW RX. . . . . . . . . . . . . . 1462.1.196 001195 / MSC O HO CMD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1472.1.197 001196 / BSC O HO CMD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1472.1.198 001197 / BTS HO ASSGN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1482.1.199 001198 / TCH REL DUE TO RADIO FAIL PH 9-11. . . . . . . . . . . . . . . 1482.1.200 001199 / TCH REL DUE TO BSS FAIL PH 2-3 . . . . . . . . . . . . . . . . . . 1492.1.201 001200 / TCH REL DUE TO BSS FAIL PH 9-11 . . . . . . . . . . . . . . . . . 1492.1.202 001201 / SDCCH FAIL PH 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1502.1.203 001202 / DROP AFTER TCH ASSIGN . . . . . . . . . . . . . . . . . . . . . . . . 1502.1.204 001203 / ERROR IND DURING LU. . . . . . . . . . . . . . . . . . . . . . . . . . . 1512.1.205 001204 / DROP TCH ASSCOMPL TO RFCH REL . . . . . . . . . . . . . . . 1512.1.206 001205 / TCH REL DUE RAD FAIL PH 2-3. . . . . . . . . . . . . . . . . . . . . 1522.1.207 001206 / TCH REL DUE RAD FAIL PH 12-14. . . . . . . . . . . . . . . . . . . 1532.1.208 001207 / TCH REL DUE BSS FAIL PH 12-14 . . . . . . . . . . . . . . . . . . . 1532.1.209 001208 / A IF CRC MISMATCH CALL SETUP . . . . . . . . . . . . . . . . . . 1542.1.210 001209 / GPRS TER DG REJ DUE STREAMING . . . . . . . . . . . . . . . 1542.1.211 001210 / GPRS TER DG REQ WHEN EQOS ON. . . . . . . . . . . . . . . . 1552.1.212 001211 / TCH REL BSC BSC CONFLICT CALL. . . . . . . . . . . . . . . . . 1552.1.213 001212 / TCH REL BSC BSC CONFLICT TARG . . . . . . . . . . . . . . . . 1562.1.214 001213 / GPRS TER UG REQ FROM CSW . . . . . . . . . . . . . . . . . . . . 1562.1.215 001214 / GPRS TER UG FROM CSW PARTIAL . . . . . . . . . . . . . . . . 1572.1.216 001215 / GPRS TER UG FROM CSW FAILED. . . . . . . . . . . . . . . . . . 1582.1.217 001216 / TCH REQ REJ DUE TO LACK OF RES PER BCSU . . . . . . 1582.1.218 001217 / INTERNAL TO EXTERNAL HO . . . . . . . . . . . . . . . . . . . . . . 1592.1.219 001218 / NOT CHANGED INTERNAL HO . . . . . . . . . . . . . . . . . . . . . 1592.1.220 001219 / IURG RELOCATION RESOURCE REQUEST. . . . . . . . . . . 160

8 DN9813827



2.1.221 001220 / IURG RELOCATION RESOURCE ALLOCATION SUCCESSFUL160

2.1.222 001221 / TCH TR FAILURE FOR IURG HO WITHOUT A INTERFACE . .161

2.1.223 001222 / IURG RELOCATION RESOURCE RELEASE. . . . . . . . . . . . 1612.1.224 001223 / SPARE001223. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1622.1.225 001224 / SPARE001224. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1622.1.226 001225 / SUCCESSFUL SDCCH ESTABLISHMENT LU EXCLUDED 1632.1.227 001226 / SDCCH DROP LU EXCLUDED. . . . . . . . . . . . . . . . . . . . . . . 1632.1.228 001227 / SUCCESSFUL SDCCH LU ESTABLISHMENT . . . . . . . . . . 1642.1.229 001228 / SDCCH LU DROP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1642.1.230 001229 / TCH ASSIGMENT FAILURE MS RETURN SDCCH . . . . . . . 1652.1.231 001230 / SDCCH DROP OTHER REASON . . . . . . . . . . . . . . . . . . . . . 1662.1.232 001231 / SDCCH LU ATTEMPTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1662.1.233 001232 / SDCCH LU ATTEMPTS FAIL . . . . . . . . . . . . . . . . . . . . . . . . 1672.1.234 001233 / DROPS AFTER DTM CS TCH ASSIGNMENT . . . . . . . . . . . 1672.1.235 001234 / DTM CS TCH DROPS BETWEEN ASSCOMPL AND RFCH REL

ACK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1682.1.236 001235 / FORCED RELEASE AFTER FORCED HO. . . . . . . . . . . . . . 1682.1.237 001236 / CLASS 2 SUBSCRIBER FORCED RELEASE . . . . . . . . . . . 1692.1.238 001237 / TCH REQUESTS FOR CALL ATTEMPT CLASS 1. . . . . . . . 1692.1.239 001238 / SUCCESSFUL TCH SEIZURES FOR CALL ATTEMPT CLASS 1

1702.1.240 001239 / TCH REQUESTS FOR CALL ATTEMPT CLASS 2. . . . . . . . 1702.1.241 001240 / SUCCESSFUL TCH SEIZURES FOR CALL ATTEMPT CLASS 2

1712.1.242 001241 / TCH REQUESTS FOR CALL ATTEMPT CLASS 3. . . . . . . . 1722.1.243 001242 / SUCCESSFUL TCH SEIZURES FOR CALL ATTEMPT CLASS 3

1722.1.244 001243 / DR TRAU DOWNGRADE ATTEMPTED IN AMR HO . . . . . . 1732.1.245 001244 / DR TRAU DOWNGRADE ATTEMPT FAILED . . . . . . . . . . . 1732.1.246 001245 / DR TRAU UPGRADE ATTEMPTED IN AMR HO . . . . . . . . . 1742.1.247 001246 / DR TRAU UPGRADE ATTEMPT FAILED. . . . . . . . . . . . . . . 1742.1.248 001247 / SEIZURE IN AMR FR TO HR HO . . . . . . . . . . . . . . . . . . . . . 1752.1.249 001248 / SEIZURE IN AMR HR TO FR HO . . . . . . . . . . . . . . . . . . . . . 1752.1.250 001249 / INTERNAL AMR HO TO EXTERNAL . . . . . . . . . . . . . . . . . . 1762.1.251 001250 / SUCCESSFUL LRTCH SEIZURES. . . . . . . . . . . . . . . . . . . . 1762.1.252 001251 / TIME OF WB-AMR CALLS . . . . . . . . . . . . . . . . . . . . . . . . . . 1772.1.253 001252 / TCH REQUESTS FOR WB-AMR . . . . . . . . . . . . . . . . . . . . . 1782.1.254 001253 / TCH SEIZURES FOR WB-AMR . . . . . . . . . . . . . . . . . . . . . . 1782.1.255 001254 / TCH ENDED DUE TRANSCODER FAILURE CODEC 5 . . . 1792.1.256 001255 / CODEC TYPE CHANGE FROM AMR TO WB-AMR SUCCESS-

FUL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1792.1.257 001256 / CODEC TYPE CHANGE FROM WB-AMR TO AMR SUCCESS-

FUL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1802.1.258 001257 / GPRS TERRITORY UPGRADE REQUEST DUE DLDC . . . 1802.1.259 001258 / GPRS TERRITORY UPGRADE DUE DLDC REJECT . . . . . 1812.1.260 001259 / TCH REQUEST WITHIN DL RX LEVEL WINDOW. . . . . . . . 182

DN9813827 9



2.1.261 001260 / TCH SEIZURE IN BCCH DUE TO DL RX LEVEL . . . . . . . . 1822.1.262 001261 / TCH REQUEST OUT OF DL RX LEVEL WINDOW . . . . . . . 1832.1.263 001262 / TCH SEIZURE IN NON-BCCH DUE TO DL RX LEVEL. . . . 1832.1.264 001263 / DHR MULTIPLEXING ATTEMPTS. . . . . . . . . . . . . . . . . . . . 1842.1.265 001264 / DHR MULTIPLEXING FAILURE DUE TO TCH RESOURCE 1842.1.266 001265 / CSDAP RESOURCE ALLOCATION ATTEMPTS FOR DHR 1852.1.267 001266 / DHR MULTIPLEXING FAILURE DUE TO CSDAP RESOURCE

1852.1.268 001267 / DHR MULTIPLEXING FAILURE DUE TO OTHER REASON 1862.1.269 001268 / TCH REQ REJ DUE ABIS CONG . . . . . . . . . . . . . . . . . . . . 1862.1.270 001269 / CALL SETUP REJ DUE ABIS CONG. . . . . . . . . . . . . . . . . . 1872.1.271 001270 / GPRS TERR UG REJ DUE ABIS. . . . . . . . . . . . . . . . . . . . . 1882.1.272 001271 / SPARE001271 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1882.1.273 001272 / TCH REQUEST REJECT DUE TO ETP OVERLOAD . . . . . 1892.1.274 001273 / CALL SETUP REJECT DUE TO ETP OVERLOAD . . . . . . . 1892.1.275 001274 / MO LS CALL SUCCESSFUL . . . . . . . . . . . . . . . . . . . . . . . . 1902.1.276 001275 / MT LS CALL SUCCESSFUL . . . . . . . . . . . . . . . . . . . . . . . . 1902.1.277 001276 / LS ESTABLISHMENT UNSUCCESSFUL DUE TO CODEC 1912.1.278 001277 / LS RELEASE DUE TO INTER HO OUTSIDE LS AREA . . . 1922.1.279 001278 / LS RELEASE DUE TO EXTERNAL HO. . . . . . . . . . . . . . . . 1922.1.280 001279 / LS RELEASE DUE TO SUPPLEM SERVICE ESTABLISHMENT

1932.1.281 001280 / SPARE001280 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1932.1.282 001281 / SPARE001281 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1942.1.283 001282 / SPARE001282 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1942.1.284 001283 / SPARE001283 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1942.1.285 001284 / SPARE001284 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1952.1.286 001285 / SPARE001285 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1952.1.287 001286 / SPARE001286 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1962.1.288 001287 / SPARE001287 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1962.1.289 001288 / DFR MULTIPLEXING ATTEMPTS IN 8K TRAU MODE . . . 1972.1.290 001289 / TRAU DOWNGRADE ATTEMPTED IN DFR MULTIPLEXING .

1972.1.291 001290 / TRAU DOWNGRADE FAILED IN DFR MULTIPLEXING. . . 1982.1.292 001291 / TRAU UPGRADE ATTEMPTED IN DFR DEMULTIPLEXING . .

1982.1.293 001292 / TRAU UPGRADE FAILED IN DFR DEMULTIPLEXING . . . 1992.1.294 001293 / DFR MULTIPLEXING ATTEMPTS. . . . . . . . . . . . . . . . . . . . 1992.1.295 001294 / DFR MULTIPLEXING FAILURE DUE TO TCH RESOURCE 2002.1.296 001295 / CSDAP RESOURCE ALLOCATION ATTEMPTS FOR DFR 2002.1.297 001296 / DFR MULTIPLEXING FAILURE DUE TO CSDAP RESOURCE

2012.1.298 001297 / DFR MULTIPLEXING FAILURE DUE TO OTHER REASON 2022.1.299 001298 / TCH REQUEST REJECTED DUE TO TX POWER . . . . . . . 2022.1.300 001299 / POWER BALANCING HANDOVER REQUESTED . . . . . . . 2032.1.301 001300 / POWER BALANCING HO REQUEST REJECTED . . . . . . . 2032.1.302 001301 / GPRS TER UG REJ DUE LACK TX POWER . . . . . . . . . . . 204

10 DN9813827



3 Signalling charts of Traffic Measurement . . . . . . . . . . . . . . . . . . . . . . . 205

4 Signalling charts of Dual Transfer Mode. . . . . . . . . . . . . . . . . . . . . . . . 287

DN9813827 11



List of figuresFigure 1 Basic call without counters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205Figure 2 Basic call with counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206Figure 3 Basic call with priority subscriber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207Figure 4 FACCH call setup due to SDCCH congestion without counters . . . . . 208Figure 5 FACCH call setup due to SDCCH congestion with counters . . . . . . . . 209Figure 6 FACCH call setup due to SDCCH congestion, no free TCH channel. Op-

tional software directed retry is not activated. . . . . . . . . . . . . . . . . . . . 210Figure 7 Normal release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211Figure 8 Basic call, no free TCH and queuing or directed retry is not allowed . 212Figure 9 Successful TCH queuing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213Figure 10 Basic call, no free TCHs, unsuccessful queuing and directed retry not acti-

vated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214Figure 11 TCH assignment failure due to MSC's inability to switch circuit pool. . 215Figure 12 Unsuccessful TCH activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216Figure 13 Unsuccessful TCH activation, timer expires while waiting for

CHANNEL_ACTIVATION_ACK message . . . . . . . . . . . . . . . . . . . . . . 217Figure 14 TCH assignment failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218Figure 15 TCH assignment failure, MSC sends CLEAR_COMMAND message . 219Figure 16 CONNECTION_FAILURE message with cause transcoder_failure during a

call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220Figure 17 TRX or TSL is blocked with different causes during a call. . . . . . . . . . 221Figure 18 SDCCH congestion, FACCH call setup is not activated . . . . . . . . . . . 222Figure 19 Unsuccessful SDCCH activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223Figure 20 Unsuccessful SDCCH activation, timer expires while waiting for

CHANNEL_ACTIVATION_ACK message . . . . . . . . . . . . . . . . . . . . . . 224Figure 21 Connection failure during SDCCH assignment . . . . . . . . . . . . . . . . . . 225Figure 22 SDCCH assignment failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226Figure 23 Unsuccessful SDCCH activation, timer expires while waiting for

PHYSICAL_CONTEXT_CONFIRM message . . . . . . . . . . . . . . . . . . . 227Figure 24 TRX/TSL is blocked with different causes during an SDCCH channel acti-

vation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228Figure 25 Successful trunk reservation. Counters updated: 001040, 001041 and ba-

sic call counters, see Figure 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229Figure 26 Unsuccessful trunk reservation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230Figure 27 Successful internal intra-cell handover. Counters 001090 and 001091 are

updated only with underlay overlay handover.. . . . . . . . . . . . . . . . . . . 231Figure 28 Internal intra-cell handover, successful TCH queuing . . . . . . . . . . . . . 232Figure 29 Unsuccessful internal intra-cell handover, timer expires while waiting for

CHANNEL_ACTIVATION_ACK message . . . . . . . . . . . . . . . . . . . . . . 233Figure 30 Unsuccessful internal intra-cell handover, CONNECTION_FAILURE mes-

sage with cause remote_transcoder_failure comes to the target channel. 234

Figure 31 Unsuccessful internal intra-cell handover, timer expires on the source channel, call cleared . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235

Figure 32 Unsuccessful underlay overlay internal intra-cell handover, queuing not al-lowed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236

Figure 33 Internal intra-cell handover, unsuccessful TCH queuing . . . . . . . . . . . 237

12 DN9813827



Figure 34 Internal directed retry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238Figure 35 Successful internal inter-cell handover . . . . . . . . . . . . . . . . . . . . . . . . . 239Figure 36 Unsuccessful internal inter-cell handover . . . . . . . . . . . . . . . . . . . . . . . 240Figure 37 Successful external handover, target . . . . . . . . . . . . . . . . . . . . . . . . . . 241Figure 38 Successful external handover, source . . . . . . . . . . . . . . . . . . . . . . . . . 242Figure 39 Unsuccessful external handover, source BSC, timer expires while waiting

for CLEAR_COMMAND message . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243Figure 40 Unsuccessful external handover, MS sends a handover failure . . . . . . 244Figure 41 Successful traffic reason handover, source . . . . . . . . . . . . . . . . . . . . . 245Figure 42 Successful SDCCH internal intra-cell handover . . . . . . . . . . . . . . . . . . 246Figure 43 Unsuccessful SDCCH internal intra-cell handover, timer expires while wait-

ing for CHANNEL_ACTIVATION_ACK message . . . . . . . . . . . . . . . . . 247Figure 44 Unsuccessful SDCCH internal intra-cell handover, unsuccessful channel

activation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248Figure 45 Unsuccessful SDCCH internal intra-cell handover,

CONNECTION_FAILURE message comes to the target channel during handover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249

Figure 46 Successful SDCCH internal inter-cell handover . . . . . . . . . . . . . . . . . . 250Figure 47 Unsuccessful SDCCH internal inter-cell handover, BTS sends

CONNECTION_FAILURE message . . . . . . . . . . . . . . . . . . . . . . . . . . . 251Figure 48 Successful SDCCH external handover target. . . . . . . . . . . . . . . . . . . . 251Figure 49 Successful SDCCH external handover source. No counters updating. 252Figure 50 Unsuccessful SDCCH external handover, timer expires while waiting for

CLEAR_COMMAND message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253Figure 51 Successful forced release. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254Figure 52 Unsuccessful forced release. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255Figure 53 Unsuccessful forced release with external handover . . . . . . . . . . . . . . 256Figure 54 Successful forced handover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257Figure 55 Unsuccessful forced handover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258Figure 56 Unsuccessful forced handover with external handover . . . . . . . . . . . . 259Figure 57 Reconfiguration from TCH to SDCCH . . . . . . . . . . . . . . . . . . . . . . . . . 260Figure 58 Normal call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260Figure 59 Mobile originated HSCSD call setup. . . . . . . . . . . . . . . . . . . . . . . . . . . 261Figure 60 Successful internal inter-cell handover for HSCSD, target cell allocations

and activations for three channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262Figure 61 A CONNECTION_FAILURE message which comes during an HSCSD . .

263Figure 62 Internal intra-cell direct access from a regular DCCH to the super-reuse

TRX. Optional software direct access to super-reuse TRX in IUO activated.264

Figure 63 Unsuccessful internal intra-cell direct access from regular DCCH to the su-per-reuse TRX due to lack of resources. Optional software direct access to super-reuse TRX in IUO activated. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265

Figure 64 Timer T3107 expires while waiting for ASSIGNMENT_COMPLETE mes-sage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266

Figure 65 Average counter updating. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267Figure 66 Successful handover due to DADL/B . . . . . . . . . . . . . . . . . . . . . . . . . . 267Figure 67 Unsuccessful DADL/B handover due to lack of resources . . . . . . . . . . 268Figure 68 Successful BSC controlled TRHO . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268

DN9813827 13



Figure 69 Unsuccessful BSC controlled TRHO . . . . . . . . . . . . . . . . . . . . . . . . . . 269Figure 70 Dropped call between ASSIGNMENT COMPLETE and DISCONNECT. .

270Figure 71 Dropped call between ASSIGNMENT COMPLETE and RF CHANNEL RE-

LEASE ACK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271Figure 72 Circuit pool switching during call setup, chart 1/2 . . . . . . . . . . . . . . . . 272Figure 73 Circuit pool switching during call setup, chart 2/2 . . . . . . . . . . . . . . . . 273Figure 74 AMR packing or unpacking handover . . . . . . . . . . . . . . . . . . . . . . . . . 274Figure 75 Successful handover type reselection from an internal inter-cell TCH to

TCH handover to an external handover due to switching the circuit pool . 275

Figure 76 Internal inter-cell handover change to external handover due to circuit pool switching, target-cell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276

Figure 77 Internal intra-cell handover change to external due to circuit pool switching, source side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277

Figure 78 Internal intra-cell handover change to external due to circuit pool switching, target side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278

Figure 79 Circuit pool switch during inter-system handover, target-BSC. . . . . . . 279Figure 80 Circuit pool switch during external handover, target-BSC . . . . . . . . . . 280Figure 81 BSS Internal Handover with MSC Support - Local Handover . . . . . . . 281Figure 82 BSS Internal Handover with MSC Support - Distant Handover . . . . . . 282Figure 83 Intra BSC HO; interface type change from AoIP to AoTDM; TC in MGW .

283Figure 84 TCH Drop Counters 1/3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284Figure 85 TCH Drop Counters 2/3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285Figure 86 TCH Drop Counters 3/3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286Figure 87 MO DTM call establishment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287Figure 88 MT DTM call establishment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288Figure 89 DTM call reallocation; too high CS connection interference . . . . . . . . 289Figure 90 DTM call reallocation; inadequate PS connection quality . . . . . . . . . . 290Figure 91 DTM call; internal inter-cell handover; CS connection power budget . 291Figure 92 DTM call; internal inter-cell handover; lack of resources in the PS territory

292Figure 93 DTM call; external handover, source BSC. . . . . . . . . . . . . . . . . . . . . . 293Figure 94 DTM call; external handover, target BSC . . . . . . . . . . . . . . . . . . . . . . 294Figure 95 DTM call release initiated by the MS . . . . . . . . . . . . . . . . . . . . . . . . . . 295Figure 96 DTM call release; packet data transfer end . . . . . . . . . . . . . . . . . . . . . 296Figure 97 DTM REQUEST rejected when IMSI data not available . . . . . . . . . . . 297Figure 98 Unsuccessful MO DTM; activation of a CS TCH in the PS territory fails, tim-

er expires while waiting for CHANNEL ACTIVATION ACK . . . . . . . . . 298Figure 99 Unsuccessful MT DTM; activation of a CS TCH in the PS territory fails, tim-

er expires while waiting for CHANNEL ACTIVATION ACK . . . . . . . . . 299Figure 100 Unsuccessful MT DTM; DTM ASSIGNMENT FAILURE received . . . . 300Figure 101 Timer T3107 expires while waiting for ASSIGNMENT COMPLETE . . 301Figure 102 DTM call reallocation failure; DTM ASSIGNMENT FAILURE received 302Figure 103 DTM CS connection drops after ASSIGNMENT COMPLETE; CONNEC-

TION FAILURE received . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303Figure 104 DTM CS connection drops after ASSIGNMENT COMPLETE; RELEASE

INDICATION not received . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304

14 DN9813827



Figure 105 Unsuccessful DTM call reallocation; timer T3107 expires while waiting for ASSIGNMENT COMPLETE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305

Figure 106 DTM TBF assignment failure; UL RLC block not received . . . . . . . . . . 306Figure 107 DTM-capable MS paging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307

DN9813827 15



List of tablesTable 1 Measurement description of Traffic Measurement . . . . . . . . . . . . . . . . 17Table 2 SDCCH attempts counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Table 3 SDCCH success counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Table 4 SDCCH failure counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Table 5 TCH requests and attempts counters . . . . . . . . . . . . . . . . . . . . . . . . . . 18Table 6 TCH success counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Table 7 TCH failure counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Table 8 Other counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Table 9 GPRS counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Table 10 Spare counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

16 DN9813827


Id:0900d80580963563Confidential

Summary of Changes

Summary of ChangesChanges between issues 14-1 (2012/10/29, RG30(BSS)) and 14-0 (2012/06/21, RG30(BSS))

Counters of Traffic measurement (2)

Updated field of counters 001192 and 001193 have been updated.Changes between issues 14-0 (2012/06/21, RG30(BSS)) and 13-6 (2010/06/28, RG20(BSS))Counters of Traffic measurement (2)

Description and updated fields of counters 001274-001279 have been updated.Changes between issues 13-6 and 13-5The Description and Updated fields of the counter 001270 have been updated.

DN9813827 17

1 Traffic Measurement 1 Traffic Measurement

Id:0900d8058096357bConfidential

1 1 Traffic MeasurementThe BSC traffic measurement registers information related to the stand alone dedicated control channels (SDCCH) and traffic channels (TCH). The BSC traffic measurement counters are divided into different classes. There are counters regarding the number of attempts to seize TCHs and SDCCHs, successful calls, lengths of the queue, the reasons for Failures and GPRS territory counters. This measurement collects one set of results for each BTS. Signalling charts are drawn with the accuracy of message inter-face.

Measurement description

Measurement counters

SDCCH attempts counters

SDCCH success counters

SDCCH failure counters

MeasurementMeasurement IDMeasurement abbreviation

Traffic Measurement1TRAFFIC

Product BSC

Product software release S1

Target name BTS + Coverage area

Table 1 Measurement description of Traffic Measurement

Counter Counter number

Seizure attempts 001000

SDCCH seizure attempts for MOC 001135

SDCCH seizure attempts for MTC 001136

Dynamic SDCCH reconfiguration attempt 001154

SDCCH LU attempts 001231

Table 2 SDCCH attempts counters


Success seizure for HO 001006

Success seizure for immediate assignment 001007

SUCCESSFUL SDCCH ESTABLISHMENT LU EXCLUDED

001225

SUCCESSFUL SDCCH LU ESTABLISHMENT 001227

Table 3 SDCCH success counters

18 DN9813827




TCH requests and attempts counters


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 during HO

001004

Transact. failed due radio on target channel during HO 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

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 DROP LU EXCLUDED 001226

SDCCH LU DROP 001228

SDCCH LU attempts fail 001232

Table 4 SDCCH failure counters


TCH request success and unsuccess 001010

Call attempts in the queue 001016

Handover attempts in the queue 001017

Table 5 TCH requests and attempts counters

DN9813827 19



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 001056

Queuing not allowed assign request attempts 001057

Forced release HO request attempts 001062

Forced HO HO request attempts 001063

Queuing allowed HO request attempts 001064

Queuing not allowed HO request attempts 001065

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 001142

TCH 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


Table 5 TCH requests and attempts counters (Cont.)

20 DN9813827




TCH success counters

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 WB-AMR 001252

TCH request within DL RX level window 001259

TCH request out of DL RX level window 001261


Table 5 TCH requests and attempts counters (Cont.)


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



Half TCH seizure speech ver 1 001111



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

Table 6 TCH success counters

DN9813827 21



TCH failure counters

Success TCH seizure when good quality in adjacents 001150

Succ TCH seiz when qual betw good and bad in adj 001152

HSCSD 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

Successful TCH seizures for DADLB HO 001170

Removal from queue due to DR 001173

Successful FR TCH seizures with AMR codecs for HO 001182

Successful HR TCH seizures with AMR codecs for HO 001183

Successful TCH seizures for call attempt 001193

Successful TCH seizures for call attempt class1 001238



Seizure in AMR FR to HR HO 001247

Seizure in AMR HR to FR HO 001248

Successful LRTCH seizures 001250

TCH seizures for WB-AMR 001253

TCH seizure in BCCH due to DL RX level 001260

TCH seizure in non-BCCH due to DL RX level 001262


Table 6 TCH success counters (Cont.)


TCH request rejected due to lack 001011

Transactions ended due to BSS problem 001012

Transactions ended due to radio failure 001013

Transact. ended due source channel failure during HO 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

Table 7 TCH failure counters

22 DN9813827




TCH transcoder failure target 001031

Trunk reservation invocations result refused 001042

TCH Abis problems 001045

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 001060

Queuing not allowed assign request failed 001061

Forced release HO request failed 001066

Forced HO HO request failed 001067

Queuing allowed HO request failed 001068

Queuing not allowed HO request failed 001069

TCH 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 001092

Non-priority subscriber refused TCH requests 001097

Trunk TCH rejected FR requests 001100

Trunk TCH rejected HR requests 001101

Rejected TCH requests due lack FR 001118

Rejected TCH requests due lack HR 001119

Full TCH rejected requests due HR traffic 001120

Half TCH rejected requests due FR traffic 001121

TCH rejected due requested channel A interface circuit 001122

Ended due transcoder FR rate 1 001127



Table 7 TCH failure counters (Cont.)

DN9813827 23




Ended due transcoder HR rate 1 001130



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 001147

TCH request rejected due to bad quality in adjacents 001151

TCH req rej when qual betw good and bad in adj 001153

HSCSD connection releases due to failure 001164

TCH request for direct access rejected due to lack 001166

Rej TCH seiz for BSC contr TRHO due lack of res 001169

TCH request in DADLB HO rejected 001171

TCH drop due to too low RX level 001194

TCH releases due to radio failures, updated in phases 9-11

001198

TCH releases due to BSS failures, updated in phases 2-3

001199

TCH releases due to BSS failures, updated in phases 9-11

001200

Dropped calls after TCH assignment 001202

Number of TCH drops between Assignment Complete and 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

Number of TCH requests rejected due to the mismatch between the types of the requested channel and the A interface circuit, updated only in call setup phase

001208

Number of TCH releases due to BSC-BSC conflict in call setup

001211

Number of TCH releases due to BSC-BSC conflict for target channel

001212



24 DN9813827




Other counters

Number of TCH requests rejected due to lack of resources per BCSU

001216

TCH TR failure for IURG HO without a interface 001221

TCH ASSIGMENT FAILURE MS RETURN SDCCH 001229

Drops after DTM CS TCH assignment 001233

DTM CS TCH drops between ASSCOMPL and RFCH REL ACK

001234

TCH ended due transcoder failure codec 5 001254

TCH request reject due to Abis congestion 001268

Call setup reject due to Abis congestion 001269

TCH request reject due to ETP overload 001272

Call setup reject due todue to ETP overload 001273

TCH REQUEST REJECTED DUE TO TX POWER 001298




Average queue length for channel seizure request 001018

Queue denominator 1 001019

Average queue time of call attempts 001020


Average queue time of HO attempts 001022


Not 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


Average queuing time of non-urgent HO attempts 001145


Successful AMR codec set downgrades 001185

Unsuccessful AMR codec set downgrades 001186

Successful AMR codec set upgrades 001187

Unsuccessful AMR codec set upgrades 001188

Table 8 Other counters

DN9813827 25



Internal to external HO 001217

Not changed internal HO 001218

IURG relocation resource request 001219

IURG relocation resource allocation successful 001220

IURG relocation resource release 001222

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

Time of WB-AMR calls 001251

Codec type change from AMR to WB-AMR successful 001255

Codec type change from WB-AMR to AMR successful 001256

DHR multiplexing attempts 001263

DHR multiplexing failure due to TCH resource 001264

CSDAP resource allocation attempts for DHR 001265

DHR multiplexing failure due to CSDAP resource 001266

DHR multiplexing failure due to other reason 001267

MO LS call successful 001274

MT LS call successful 001275

LS establishment unsuccessful due to CODEC 001276

LS release due to inter handover outside LS area 001277

LS release due to external handover 001278

LS release due to supplementary service establisment 001279

DFR MULTIPLEXING ATTEMPTS IN 8K TRAU MODE

001288

TRAU DOWNGRADE ATTEMPTED IN DFR MULTI-PLEXING

001289

TRAU DOWNGRADE FAILED IN DFR MULTIPLEX-ING

001290

TRAU UPGRADE ATTEMPTED IN DFR DEMULTI-PLEXING

001291

TRAU UPGRADE FAILED IN DFR DEMULTIPLEX-ING

001292

DFR MULTIPLEXING ATTEMPTS 001293


Table 8 Other counters (Cont.)

26 DN9813827




GPRS counters

Spare counters

DFR MULTIPLEXING FAILURE DUE TO TCH RESOURCE

001294

CSDAP RESOURCE ALLOCATION ATTEMPTS FOR DFR

001295

DFR MULTIPLEXING FAILURE DUE TO CSDAP RESOURCE

001296

DFR MULTIPLEXING FAILURE DUE TO OTHER REASON

001297

POWER BALANCING HANDOVER REQUESTED 001299

POWER BALANCING HO REQUEST REJECTED 001300


Table 8 Other counters (Cont.)


GPRS territory upgrade requests 001174

Incompletely served GPRS territory upgrade requests 001175

GPRS upgrade requests rejected due to CSW traffic 001176

GPRS upgrade requests rejected due to lack of PSW 001177

GPRS upgrade requests rejected due to to lack of PCU

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 streaming traffic

001209

GPRS territory downgrade rejected due to need of CS resources.

001210

Number of GPRS territory upgrade requestes from CSW

001213

Number of GPRS territory upgrade requests from CSW, partially successful

001214

Number of GPRS territory upgrade requests from CSW, failed

011215

GPRS territory upgrade request due to DLDC 001257

GPRS territory upgrade request due to DLDC reject 001258

GPRS territory upgrade reject due to ABIS 001270

GPRS TER UG REJ DUE LACK TX POWER 001301

Table 9 GPRS counters

DN9813827 27




Spare001191 001191

Spare001223 001223

Spare001224 001224

Spare001230 001230

Spare001271 001271

Spare001280 001280

Spare001281 001281

Spare001282 001282

Spare001283 001283

Spare001284 001284

Spare001285 001285

Spare001286 001286

Spare001287 001287

Table 10 Spare counters

28 DN9813827



Counters of Traffic measurement

2 Counters of Traffic measurement

2.1 Counters of Traffic measurement

2.1.1 001000 / SEIZURE ATTEMPTS

2.1.2 001001 / SEIZURE ATTEMPTS WITH BUSY SDCCH

Counter ID: 001000 Network element name: SEIZURE ATTEMPTS

Version: 8.0 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 for either 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:

Counter ID: 001001 Network element name: SEIZURE ATTEMPTS WITH BUSY SDCCH

Version: 8.0 NetAct name: SDCCH_BUSY_ATT

Description: Number of times when an MS attempts to seize an SDCCH but the attempt is unsuccessful because all SDCCHs are busy. This counter does not neces-sarily mean that the call attempt is lost, because the call may be established as an FACCH call setup using TCH instead of SDCCH. This counter is not triggered when the TCH reconfiguration is attempted because of dynamic SDCCH allocation. If the attempt fails, the SDCCH_busy_attempt is triggered together with 1155 UNSUCC_IMM_ASS_SDCCH_ATTEMPT.

DN9813827 29

1 Traffic Measurement Counters of Traffic measurement


2.1.3 001002 / TRANSACTIONS FAIL DUE TO BSS FAIL

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




Operability class:

Related to feature:

BSS20003: CS Statistics Enhancements

Related to standard:





Counter ID: 001002 Network element name: TRANSACTIONS FAIL DUE TO BSS FAIL

Version: 8.0 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.

Updated: When one of the counters 001033, 001034, 001035, or 001036 is updated. This counter represents their sum. See figures: - Unsuccessful SDCCH activation, timer expires while waiting for CHANNEL_ACTIVATION_ACK message - SDCCH assignment failure - Unsuccessful SDCCH activation, timer expires while waiting for PHYSICAL_CONTEXT_CONFIRM message - TRX/TSL is blocked with different causes during an SDCCH channel activation - Unsuccessful SDCCH internal intra-cell handover, timer expires while waiting for CHANNEL_ACTIVATION_ACK message - Unsuccessful SDCCH external handover, timer expires while waiting for CLEAR_COMMAND message




Operability class:






30 DN9813827




2.1.4 001003 / TRANSACTIONS FAIL DUE TO RADIO FAIL

2.1.5 001004 / TRANSACTIONS FAIL DUE RADIO ON SOURCE CHANNEL DURING HO

Counter ID: 001003 Network element name: TRANSACTIONS FAIL DUE TO RADIO FAIL

Version: 8.0 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 the RRM releases the SDCCH. This counter is updated in call phases 1-8 only. See figures: - TCH assignment failure - Connection failure during SDCCH assignment




Operability class:






Counter ID: 001004 Network element name: TRANSACTIONS FAIL DUE RADIO ON SOURCE CHANNEL DURING HO

Version: 8.0 NetAct name: SDCCH_RF_OLD_HO

Description: Number of SDCCH transactions ended because of a radio failure on the source channel during 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, also counter 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 source channel 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_FAILURE message.




001005: TRANSACTIONS FAIL DUE RADIO ON TARGET CHANNEL

Operability class:

DN9813827 31



2.1.6 001005 / TRANSACTIONS FAIL DUE RADIO ON TARGET CHANNEL

2.1.7 001006 / SUCCESS SEIZURE FOR HO






Counter ID: 001005 Network element name: TRANSACTIONS FAIL DUE RADIO ON TARGET CHANNEL

Version: 8.0 NetAct name: SDCCH_RF_NEW_HO

Description: Number of SDCCH transactions ended because of a radio failure on the target channel during 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. The unsuccessful seizure may have been caused by a missing indication of call establishment, missing detection 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 a handover 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 message comes to the target channel during handover.




Operability class:






Counter ID: 001006 Network element name: SUCCESS SEIZURE FOR HO

Version: 8.0 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 handover attempt. See figures: - Successful SDCCH internal intra-cell handover - Successful SDCCH internal inter-cell handover - Successful SDCCH external handover target

32 DN9813827




2.1.8 001007 / SUCCESS SEIZURE FOR IMMEDIATE ASSIGNMENT

2.1.9 001008 / SUCCESS TCH SEIZURE FOR HO




Operability class:






Counter ID: 001007 Network element name: SUCCESS SEIZURE FOR IMMEDIATE ASSIGNMENT

Version: 8.0 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




Operability class:






Counter ID: 001008 Network element name: SUCCESS TCH SEIZURE FOR HO

Version: 8.0 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

DN9813827 33



2.1.10 001009 / SUCCESS TCH SEIZURE FOR NORMAL ASSIGNMENT

2.1.11 001010 / TCH REQUEST SUCCESS AND UNSUCCESS




Operability class:






Counter ID: 001009 Network element name: SUCCESS TCH SEIZURE FOR NORMAL ASSIGNMENT

Version: 8.0 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




Operability class:






Counter ID: 001010 Network element name: TCH REQUEST SUCCESS AND UNSUCCESS

Version: 8.0 NetAct name: TCH_REQUEST

Description: Total number of requests for a TCH (successful and unsuccessful).

34 DN9813827




2.1.12 001011 / TCH REQUEST REJECTED DUE TO LACK

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, unsuccess-ful queuing and directed retry not activated - TCH assignment failure with cause switch_circuit_pool, queuing and directed retry not allowed - Unsuccessful trunk res-ervation - Successful internal intra-cell handover - Internal intra-cell HO, successful TCH queuing - Unsuccessful underlay overlay internal intra-cell handover, queuing not allowed - Internal intra-cell handover, unsuccessful TCH queuing - Internal directed retry - Successful internal inter-cell handover - Successful external han-dover, target - Successful forced release - Unsuccessful forced release - Unsuc-cessful forced release with external handover - Successful forced handover - Unsuccessful forced handover - Unsuccessful forced handover with external handover




Operability class:






Counter ID: 001011 Network element name: TCH REQUEST REJECTED DUE TO LACK

Version: 8.0 NetAct name: TCH_REQ_REJ_LACK

Description: Number of requests for TCHs that are rejected because there are no radio resources available. All kinds of procedures used to request a TCH are consid-ered, that is, the TCH is rejected if there is no requested resources available for assignments using the normal TCH assignment procedure and assignments for all kinds of (incoming) handovers. This counter is also updated when a request for TCH is rejected because of a mismatch between the types of the requested channel and the A interface circuit. See also counter 004079.

DN9813827 35



2.1.13 001012 / TRANSACTIONS ENDED DUE TO BSS PROBLEM

Updated: When the RRM has no TCHs available for either call or HO attempt requests, or the RRM changes the A interface circuit pool before the TCH allocation. This counter may be updated immediately after a TCH request or, in case of queu-ing,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 on the 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 on the SOURCE side. 3) On the TARGET side, this counter is updated in case of congestion (blocking). See figures: - Basic call without counters - Basic call, no free TCHs, unsuccessful queuing and directed retry not activated - TCH assign-ment 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




004079: CAUSE DIR RETRY

Operability class:





Used from release: S1 Definition updated in release: S15

Counter ID: 001012 Network element name: TRANSACTIONS ENDED DUE TO BSS PROBLEM

Version: 8.0 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 counter represents 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 dif-ferent causes during a call - Unsuccessful internal intra-cell handover, timer expires while waiting for CHANNEL_ACTIVATION_ACK message - Unsuccessful external handover, source BSC, timer expires while waiting for CLEAR_COMMAND message - Unsuccessful external handover, MS sends a handover failure - Dropped call between ASSIGNMENT COMPLETE and DISCONNECT



36 DN9813827




2.1.14 001013 / TRANSACTIONS ENDED DUE RADIO FAIL

2.1.15 001014 / TRANSACTIONS ENDED DUE SOURCE CHANNEL FAIL DURING HO


Operability class:






Counter ID: 001013 Network element name: TRANSACTIONS ENDED DUE RADIO FAIL

Version: 8.0 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 BTS to the BSC in the following cases: - Sequence error in a received message (the case where retransmission is not possi-ble). - 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




Operability class:





Used from release: S1 Definition updated in release: S11

Counter ID: 001014 Network element name: TRANSACTIONS ENDED DUE SOURCE CHANNEL FAIL DURING HO

Version: 8.0 NetAct name: TCH_RF_OLD_HO

DN9813827 37



2.1.16 001015 / TRANSACTIONS ENDED DUE TARGET CHANNEL FAIL

Description: Number of TCH transactions ended because of a radio failure on the source channel during 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 channel during 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.




Operability class:






Counter ID: 001015 Network element name: TRANSACTIONS ENDED DUE TARGET CHANNEL FAIL

Version: 8.0 NetAct name: TCH_RF_NEW_HO

Description: A TCH transaction ends because of a radio failure (HO failure) on the target channel during a handover attempt. Counter 001088 is also updated along with this counter if the MS fails to return to the old channel during 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 may be caused by missing indication of call establishment, missing detection of HO, missing indication of the HO completed or corrupted messages related to HO.

Updated: When a TCH transaction ends because of a radio failure on the target channel during a handover attempt. This counter is updated in call phases 12-14 only.




001088: TCH A IF FAIL SOURCE

Operability class:






38 DN9813827




2.1.17 001016 / CALL ATTEMPTS IN THE QUEUE

2.1.18 001017 / HANDOVER ATTEMPTS IN THE QUEUE

Counter ID: 001016 Network element name: CALL ATTEMPTS IN THE QUEUE

Version: 8.0 NetAct name: TCH_QD_CALL_ATT

Description: 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 of the requested kind available. See figures: - Successful TCH queuing - Basic call, no free TCHs, unsuccessful queuing and directed retry not activated




001010: TCH REQUEST SUCCESS AND UNSUCCESS

Operability class:






Counter ID: 001017 Network element name: HANDOVER ATTEMPTS IN THE QUEUE

Version: 8.0 NetAct name: TCH_QD_HO_ATT

Description: Number of HO attempts set in the queue for a TCH. Counter 001010 is updated along with this counter.

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