ETSI TS 145 008 V13.10.0 (2019-07)

TECHNICAL SPECIFICATION
Digital cellular telecommunications system (Phase 2+) (GSM);
GSM/EDGE Radio subsystem link control
(3GPP TS 45.008 version 13.10.0 Release 13)

R
GLOBAL SYSTEM FOR
MOBILE COMMUNICATIONS
3GPP TS 45.008 version 13.10.0 Release 13 1 ETSI TS 145 008 V13.10.0 (2019-07)

Reference
RTS/TSGR-0645008vda0
Keywords
GSM
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ETSI
3GPP TS 45.008 version 13.10.0 Release 13 2 ETSI TS 145 008 V13.10.0 (2019-07)
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ETSI
3GPP TS 45.008 version 13.10.0 Release 13 3 ETSI TS 145 008 V13.10.0 (2019-07)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 8
1 Scope . 9
1.1 References . 9
1.2 Abbreviations . 11
1.3 Definitions . 11
1.4 Restrictions . 11
2 General . 12
3 Handover . 13
3.1 Overall process . 13
3.2 MS measurement procedure . 13
3.3 BSS measurement procedure . 13
3.4 Strategy . 14
4 RF power control . 14
4.1 Overall process . 14
4.2 MS implementation . 14
4.2.1 General . 14
4.2.2 (EC-)RACH . 15
4.2.2.1 Random access procedure when EC operation is not enabled . 15
4.2.2.2 Random access procedure when EC operation is enabled . 16
4.3 MS power control range . 17
4.4 BSS implementation . 17
4.4.1 VAMOS subchannel power control for BSS in downlink . 17
4.5 BSS power control range . 18
4.6 Strategy . 18
4.7 Timing . 18
4.7.1 Normal Power Control . 18
4.7.2 Fast Power Control . 18
4.7.3 Enhanced Power Control . 19
4.8 Dedicated channels used for a voice group call or voice broadcast. 19
5 Radio link failure . 19
5.1 Criterion . 19
5.2 MS procedure . 20
5.3 BSS procedure . 20
6 Idle mode tasks . 20
6.1 Introduction . 20
6.2 Measurements for normal cell selection . 22
6.3 Measurements for stored list cell selection . 23
6.4 Criteria for cell selection and reselection . 23
6.4.1 C1 path loss criterion . 23
6.4.2 C2 reselection criterion . 24
6.4.3 C4 criteria . 25
6.4.4 Disabling of EC operation . 26
6.5 Downlink signalling failure . 26
6.6 Measurements for Cell Reselection . 26
6.6.0 General . 26
6.6.1 Monitoring of received signal level and BCCH data . 27
6.6.1.1 Applicability. 27
6.6.1.2 Monitoring of received signal level . 27
6.6.1.3 Monitoring of BCCH data and BSIC decoding . 27
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6.6.1.4 Determination of available PLMNs . 28
6.6.1.5 Requirements for synchronization and reading of BCCH data . 28
6.6.1a Reduced Monitoring of received signal level and (EC-)BCCH data . 28
6.6.1a.1 General . 28
6.6.1a.2 Monitoring of the serving cell . 28
6.6.1a.3 Criteria for triggering measurements for cell re-selection. 29
6.6.1a.4 Monitoring of non-serving cells . 29
6.6.2 Path loss criteria and timings for cell re-selection . 30
6.6.3 Cell reselection algorithm for SoLSA . 31
6.6.4 Measurements on cells of other radio access technologies . 31
6.6.5 Algorithm for cell re-selection from GSM to UTRAN based on cell ranking . 36
6.6.6 Algorithm for inter-RAT cell re-selection based on priority information . 37
6.6.7 Cell selection and re-selection to CSG cells and hybrid cells . 40
6.6.7.1 Cell re-selection to CSG cells . 40
6.6.7.1a Cell re-selection to hybrid cells . 41
6.6.7.2 Manual CSG ID selection . 41
6.7 Release of TCH, SDCCH and DBPSCH . 41
6.7.1 Normal case . 41
6.7.2 Call re-establishment . 42
6.8 Abnormal cases and emergency calls . 42
6.9 RLA_EC signal level and SLA measurements . 43
6.9.1 General . 43
6.9.2 Physical parameters . 43
6.9.3 Statistical parameter . 43
6.9.4 Accuracy requirements . 44
6.9.5 Void . 44
6.9a RLA_GC signal level measurements . 44
6.9a.1 General . 44
6.9a.2 Physical parameter . 44
6.9a.3 Statistical parameter . 44
6.9a.4 Accuracy requirements . 44
6.10 Coverage class selection for EC-GSM-IoT . 45
6.10.1 General . 45
6.10.2 Downlink coverage class selection . 45
6.10.3 Uplink coverage class selection . 45
6.10.4 Coverage class adaptation for EC-CCCH . 46
6.10.5 Downlink coverage class update . 46
7 Network pre-requisites . 47
7.1 BCCH carriers . 47
7.2 Identification of surrounding BSS . 48
7.2.1 General . 48
7.2.2 Identification of surrounding BSS for handover measurements . 49
7.3 Handover measurements on other radio access technologies . 50
7.4 Handover measurements on UTRAN CSG cells and hybrid cells . 53
8 Radio link measurements . 54
8.1 Signal level . 54
8.1.1 General . 54
8.1.2 Physical parameter . 54
8.1.3 Statistical parameters . 55
8.1.4 Range of parameter . 55
8.1.5 Measurement quantity for other radio access technologies . 56
8.1.5.1 UTRAN FDD . 56
8.1.5.2 UTRAN TDD . 56
8.1.5.3 cdma2000 . 56
8.1.5.4 E-UTRAN FDD . 57
8.1.5.5 E-UTRAN TDD . 58
8.2 Signal quality . 58
8.2.1 General . 58
8.2.2 Physical parameter . 58
8.2.3 Statistical parameters . 59
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8.2.3.1 RXQUAL . 59
8.2.3.2 MEAN_ BEP and CV_BEP . 59
8.2.4 Range of parameter RXQUAL . 60
8.2.5 Range of parameters MEAN_BEP and CV_BEP . 61
8.3 Aspects of discontinuous transmission (DTX) . 65
8.4 Measurement reporting . 66
8.4.1 Measurement reporting for the MS . 66
8.4.1a Measurement reporting for the MS in FPC mode . 68
8.4.1b Measurement reporting for the MS in EPC mode . 68
8.4.2 Measurement reporting for the MS on a SDCCH . 69
8.4.3 Additional cell reporting requirements for multi band MS . 69
8.4.4 Common aspects for the MS on a TCH, a SDCCH or a DBPSCH . 70
8.4.5 Measurement reporting for the BSS . 70
8.4.6 Extended measurement reporting . 71
8.4.7 Additional cell reporting requirements for multi-RAT MS . 71
8.4.8 Enhanced Measurement Reporting . 73
8.4.8.1 Reporting Priority . 73
8.4.8.2 Measurement Reporting . 74
8.4.8.3 NBR_RCVD_BLOCKS for FLO . 75
8.4.9 Requirements for measurement and reporting of CSG cells and hybrid cells . 75
8.5 Absolute MS-BTS distance . 76
8.5.1 General . 76
8.5.2 Physical parameter . 76
9 Control parameters . 77
10 GPRS mode tasks . 90
10.1 Cell Re-selection . 90
10.1.0 General . 90
10.1.1 Monitoring the received signal level and PBCCH data . 91
10.1.1.0 General . 91
10.1.1.1 Packet idle mode or MAC-Idle state . 92
10.1.1.2 Packet transfer mode or MAC-Shared state . 92
10.1.1.2a Broadcast/multicast receive mode . 93
10.1.1.3 Monitoring cells of other radio access technologies . 94
10.1.2 Cell Re-selection Criteria . 98
10.1.3 Cell Re-selection Algorithm . 99
10.1.3.1 Abnormal cell reselection . 100
10.1.3.2 Algorithm for cell re-selection from GSM to UTRAN based on cell ranking . 101
10.1.3.3 Algorithm for inter-RAT cell re-selection based on priority information . 102
10.1.3.4 Cell selection and re-selection to CSG cells and hybrid cells . 102
10.1.4 Network controlled Cell re-selection . 102
10.1.4.1 Measurement reporting . 103
10.1.4.2 Cell re-selection command . 108
10.1.4.3 Exceptional cases . 108
10.1a Measurement and Reporting of CSG Cells and hybrid cells . 108
10.2 RF Power Control . 109
10.2.1 MS output power . 109
10.2.2 BTS output power . 110
10.2.3 Measurements at MS side . 111
10.2.3.1 Deriving the C value . 111
10.2.3.1.1 Packet idle mode or MAC-Idle state . 111
10.2.3.1.2 Packet transfer mode or MAC-Shared state . 112
10.2.3.1.2.1 MS that have not enabled EC operation . 112
10.2.3.1.2.2 MS that have enabled EC operation . 114
10.2.3.2 Derivation of Channel Quality Report . 114
10.2.3.2.1 Packet transfer mode or MAC-Shared state . 115
10.2.3.2.2 Void . 118
10.2.3.2.3 Measurement reporting . 118
10.2.3.2.4 Measurement reporting - additional requirements for downlink dual carrier . 119
10.2.3.2.5 Measurement reporting - additional requirements for downlink multi carrier. 120
10.2.3.3 Range of parameters MEAN_BEP and CV_BEP for EGPRS2 . 120
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10.2.4 Measurements at BSS side . 124
10.2a Packet-switched Handover . 124
10.3 Measurement requirements . 124
10.4 Control parameters . 124
11 CTS mode tasks . 132
11.1 CTS idle mode tasks . 132
11.1.1 CTS cell selection . 133
11.1.1.1 Synchronization and measurements for CTS cell selection . 133
11.1.1.2 Initial sychronization of CTS-MS . 133
11.1.2 Criterion for CTS cell selection . 133
11.1.3 Monitoring of CTSBCH and CTSPCH . 134
11.1.3.1 Monitoring of received signal level . 134
11.1.3.2 Downlink beacon failure . 134
11.1.3.3 Downlink paging failure . 134
11.1.4 Procedures with reporting to the CTS-FP . 134
11.1.4.1 AFA monitoring . 135
11.1.4.2 BCCH detection . 135
11.1.4.3 Observed Frequency Offset (OFO) measurement . 135
11.2 Intra-cell handover . 135
11.2.1 Overall process . 135
11.2.2 CTS-MS measurement procedure . 136
11.2.3 CTS-FP measurement procedure . 136
11.2.4 Strategy . 136
11.3 RF power control . 136
11.3.1 Overall process . 136
11.3.2 CTS-MS implementation . 136
11.3.3 CTS-MS power control range . 137
11.3.4 CTS-FP implementation . 137
11.3.5 CTS-FP power control range . 137
11.3.6 Strategy . 137
11.3.7 Timing . 137
11.4 Radio link failure . 137
11.4.1 Criterion . 137
11.4.2 CTS-MS procedure . 137
11.4.3 CTS-FP procedure . 138
11.5 Radio link measurements . 138
11.5.1 Signal strength . 138
11.5.1.1 General . 138
11.5.1.2 Physical parameter . 138
11.5.1.3 Statistical parameters . 138
11.5.1.4 Range of parameter . 139
11.5.2 Signal quality . 139
11.5.2.1 General . 139
11.5.2.2 Physical parameter . 139
11.5.2.3 Statistical parameters . 139
11.5.2.4 Range of parameter . 139
11.5.3 Aspects of discontinuous transmission (DTX) . 139
11.5.4 Measurement reporting for the CTS-MS on a TCH . 139
11.6 Control of CTS-FP service range . 140
11.7 Control parameters . 140
12 COMPACT Mode Tasks . 142
12.1 Introduction . 142
12.2 Network Pre-requisites . 142
12.2.1 CPBCCH carriers . 142
12.3 COMPACT Idle Mode Tasks . 142
12.3.1 Introduction. 142
12.3.2 Measurements for COMPACT Cell Selection . 142
12.3.3 Measurements for COMPACT Stored List Cell Selection . 143
12.3.4 Criteria for COMPACT Cell Selection . 143
12.3.5 Downlink Signalling Failure . 143
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12.4 COMPACT Cell Reselection . 143
12.4.1 Monitoring the received signal level and CPBCCH data . 144
12.4.1.1 Packet idle mode or MAC-Idle state . 144
12.4.1.2 Packet transfer mode or MAC-Shared state . 144
12.4.2 COMPACT cell reselection criteria . 145
12.4.3 COMPACT cell reselection algorithm . 145
12.4.4 Network controlled Cell reselection . 145
12.4.5 COMPACT cell reselection measurement opportunities . 145
Annex A (informative): Definition of a basic GSM or DCS 1 800 handover and RF power
control algorithm . 146
A.1 Scope . 146
A.2 Functional requirement. 146
A.3 BSS pre-processing and threshold comparisons. 147
A.3.1 Measurement averaging process . 147
A.3.2 Threshold comparison process . 148
A.3.2.1 RF power control process . 148
A.3.2.2 Handover Process . 149
A.4 BSS decision algorithm . 150
A.4.1 Internal intracell handover according to radio criteria: (Interference problems) . 150
A.4.2 Internal handover according to other criteria. 151
A.4.3 General considerations . 151
A.5 Channel allocation .
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