ETSI TS 138 523-1 V17.2.0 (2023-07)

LTE; 5G; 5GS; User Equipment (UE) conformance specification; Part 1: Protocol (3GPP TS 38.523-1 version 17.2.0 Release 17)

RTS/TSGR-0538523-1vh20

General Information

• Status: Not Published
• Technical Committee: 3GPP RAN 5 - Mobile Terminal Conformance Testing (formely T1)
• Current Stage: 12 - Citation in the OJ (auto-insert)
• Completion Date: 04-Jul-2023

Standards Content (Sample)

TECHNICAL SPECIFICATION
LTE;
5G;
5GS;
User Equipment (UE) conformance specification;
Part 1: Protocol
(3GPP TS 38.523-1 version 17.2.0 Release 17)

3GPP TS 38.523-1 version 17.2.0 Release 17 1 ETSI TS 138 523-1 V17.2.0 (2023-07)

Reference
RTS/TSGR-0538523-1vh20
Keywords
5G,LTE
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ETSI
3GPP TS 38.523-1 version 17.2.0 Release 17 2 ETSI TS 138 523-1 V17.2.0 (2023-07)
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ETSI
3GPP TS 38.523-1 version 17.2.0 Release 17 3 ETSI TS 138 523-1 V17.2.0 (2023-07)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 28
1 Scope . 30
2 References . 30
3 Definitions, symbols and abbreviations . 32
3.1 Definitions . 32
3.2 Symbols . 32
3.3 Abbreviations . 32
4 Overview . 32
4.1 Test methodology . 32
4.1.1 Testing of optional functions and procedures . 32
4.1.2 Test interfaces and facilities. 33
4.2 Implicit testing . 33
4.3 Repetition of tests . 33
4.4 Handling of differences between conformance requirements in different releases of core
specifications . 33
5 Reference conditions, generic and test procedures, test parameters . 34
5.1 Reference conditions . 34
5.2 Generic and test procedures. 34
5.3 Test parameters . 34
5.3.1 PLMNs . 34
5.3.2 Cells . 34
5.3.3 USIM . 35
5.3.4 Messages and Information Elements (IEs) . 35
6 Idle mode and RRC Inactive state operations . 35
6.1 NR idle mode operations . 35
6.1.1 NG-RAN Only PLMN Selection . 35
6.1.1.1 PLMN selection of RPLMN, HPLMN/EHPLMN, UPLMN and OPLMN / Automatic mode . 35
6.1.1.2 PLMN selection of "Other PLMN/access technology combinations" / Automatic mode . 42
6.1.1.3 Cell reselection of ePLMN in manual mode . 47
6.1.1.4 PLMN selection in shared network environment / Automatic mode . 50
6.1.1.4a PLMN selection in shared network environment / Automatic mode / Cells broadcasting multiple
PLMN IDs with unique TAC's, RAN areas, and cell identities . 56
6.1.1.5 PLMN selection of RPLMN, HPLMN/EHPLMN, UPLMN and OPLMN / Automatic mode /
User reselection . 58
6.1.1.6 PLMN selection / Periodic reselection / MinimumPeriodicSearchTimer . 62
6.1.1.7 PLMN selection of RPLMN or (E)HPLMN; Automatic mode . 65
6.1.1.8 PLMN selection of RPLMN or (E)HPLMN; Manual mode . 68
6.1.2 NG-RAN Only Cell Selection . 72
6.1.2.1 Cell selection / Qrxlevmin & Cell reselection (Intra NR) . 72
6.1.2.2 Cell selection / Qqualmin / Intra NR / Serving cell becomes non-suitable (Srxlev > 0, Squal <
0) . 81
6.1.2.3 Cell selection / Intra NR / Serving cell becomes non-suitable (S<0, MIB Indicated barred) . 89
6.1.2.4 Cell reselection for interband operation . 94
6.1.2.5 Cell reselection for interband operation using Pcompensation / Between FDD and TDD . 98
6.1.2.6 Void. 102
6.1.2.7 Cell reselection / Equivalent PLMN . 102
6.1.2.8 Cell reselection / Equivalent PLMN / Single Frequency operation . 106
6.1.2.9 Cell reselection using Qhyst, Qoffset and Treselection . 109
6.1.2.10 Void. 115
ETSI
3GPP TS 38.523-1 version 17.2.0 Release 17 4 ETSI TS 138 523-1 V17.2.0 (2023-07)
6.1.2.11 Area Specific SIBs using systemInformationAreaID . 115
6.1.2.12 Cell reselection using cell status and cell reservations / cellReservedForOtherUse . 121
6.1.2.13 Cell reselection using cell status and cell reservations / Access Identity 0, 1, 2 and 12 to 14 –
cellReservedForOperatorUse . 124
6.1.2.14 Cell reselection using cell status and cell reservations / Access Identity 11 or 15 -
cellReservedForOperatorUse . 127
6.1.2.15 Cell reselection in shared network environment . 130
6.1.2.15a Cell reselection in shared network environment / Cells broadcasting multiple PLMN IDs with

unique TAC's, RAN areas, and cell identities . 133
6.1.2.16 Inter-frequency cell reselection (equal priority) . 135
6.1.2.17 Cell reselection / Cell-specific reselection parameters provided by the network in a neighbouring
cell list . 137
6.1.2.18 Cell reselection, Sintrasearch, Snonintrasearch. 139
6.1.2.19 Speed-dependent cell reselection . 145
6.1.2.20 Inter-frequency cell reselection according to cell reselection priority provided by SIBs . 150
6.1.2.21 Cell reselection, SIntraSearchQ and SnonIntraSearchQ . 155
6.1.2.22 Inter-frequency cell reselection based on common priority information with parameters ThreshX,
HighQ, ThreshX, LowQ and ThreshServing, LowQ . 164
6.1.2.23 Cell reselection / MFBI . 171
6.1.2.24 Slice-based cell reselection / Reselection priorities provided by SIB16 . 179
6.1.2.25 184
6.1.2.26 Cell Selection / RedCap . 184
6.1.2.27 Cell reselection / inter-frequency / RedCap . 188
6.2 Multi-mode environment . 191
6.2.1 Inter-RAT PLMN selection . 191
6.2.1.1 Inter-RAT PLMN Selection / Selection of correct RAT for OPLMN / Automatic mode . 191
6.2.1.2 Inter-RAT PLMN Selection / Selection of correct RAT for UPLMN / Automatic mode . 194
6.2.1.3 Inter-RAT PLMN Selection / Selection of correct PLMN and RAT in shared network
environment / Automatic mode . 196
6.2.1.4 Inter-RAT PLMN Selection / Selection of correct RAT from the OPLMN list / Manual mode 200
6.2.1.5 Inter-RAT Background HPLMN Search / Search for correct RAT for HPLMN / Automatic
Mode . 203
6.2.2 Inter-RAT Cell Selection . 207
6.2.2.1 Inter-RAT cell selection / From NR RRC_IDLE to EUTRA_Idle / Serving cell becomes non-
suitable . 207
6.2.2.2 Inter-RAT cell selection / From E-UTRA_Idle to NR RRC_IDLE / Serving cell becomes non-
suitable . 214
6.2.3 Inter-RAT Cell Reselection . 221
6.2.3.1 Inter-RAT cell reselection / From E-UTRA_IDLE to NR RRC_IDLE (lower priority & higher
priority, Srxlev based) . 221
6.2.3.2 Inter-RAT cell reselection / From E-UTRA_IDLE to NR RRC_IDLE (lower priority & higher
priority, Squal based) . 229
6.2.3.3 Inter-RAT cell reselection / From NR RRC_IDLE to E-UTRA_IDLE (lower priority & higher
priority, Srxlev based) . 237
6.2.3.4 Inter-RAT cell reselection / From NR RRC_IDLE to E-UTRA_IDLE (lower priority & higher
priority, Squal based) . 243
6.2.3.5 Inter-RAT cell reselection / From NR RRC_IDLE to E-UTRA_IDLE according to RAT priority
provided by dedicated signalling (RRCRelease) . 250
6.2.3.6 Inter-RAT cell reselection / From E-UTRA_IDLE to NR RRC_IDLE according to RAT priority
provided by dedicated signalling (RRConnRelease) . 257
6.2.3.7 Inter-RAT cell reselection / From NR RRC_IDLE to E-UTRA RRC_IDLE, Snonintrasearch. 263
6.2.3.8 Inter-RAT cell reselection / From E-UTRA RRC_IDLE to NR RRC_IDLE, Snonintrasearch 267
6.2.3.9 Void. 273
6.2.3.10 Inter-RAT cell reselection / From E-UTRA_IDLE to NR RRC_IDLE / schedulingInfoList-
v12j0 . 273
6.2.3.11 Inter-RAT cell reselection / From E-UTRA_IDLE to NR RRC_IDLE / schedulingInfoListExt-
r12 . 281
6.3 5GS Steering of Roaming . 289
6.3.1 Steering of Roaming . 289
6.3.1.1 Steering of UE in roaming during registration/security check successful using List Type 1 . 289
6.3.1.2 Steering of UE in roaming during registration/security check successful but SOR Transparent
container indicates ACK has been NOT been requested . 295
ETSI
3GPP TS 38.523-1 version 17.2.0 Release 17 5 ETSI TS 138 523-1 V17.2.0 (2023-07)
6.3.1.3 Steering of UE in roaming during registration/security check unsuccessful/Automatic mode . 301
6.3.1.4 Steering of UE in roaming during registration/security check unsuccessful/Manual mode . 304
6.3.1.5 Steering of UE in roaming during registration/UE configured to receive Steering of Roaming
information but does not receive Steering of Roaming from Network . 308
6.3.1.6 Void. 313
6.3.1.7 Steering of UE in roaming during registration/security check unsuccessful but emergency service
pending to be activated . 313
6.3.1.8 Steering of UE in roaming after registration/Automatic PLMN selection mode . 318
6.3.1.9 Steering of UE in roaming after registration/Manual PLMN selection mode . 322
6.3.1.10 Steering of UE in roaming during mobility update registration . 325
6.3.2 Steering of Roaming with using SOR-CMCI . 329
6.3.2.1 Steering of UE in roaming after registration / SOR-CMCI rule / DNN of the PDU session / DL
NAS transport . 329
6.3.2.2 Steering of UE in roaming after registration / SOR-CMCI rule / MMTEL voice call / DL NAS

transport . 339
6.3.2.3 Steering of UE in roaming after registration / SOR-CMCI rule / match all / DL NAS
transport . 350
6.3.2.4 Steering of UE in roaming after registration / SOR-CMCI rule / DNN of the PDU session /
update Tsor-cm Timer / DL NAS transport . 360
6.3.2.5 Steering of UE in roaming after registration / SOR-CMCI rule / DNN of the PDU session / store

SOR-CMCI in ME / DL NAS transport . 371
6.3.2.6 Steering of UE in roaming after registration / SOR-CMCI rule / match all / Emergency call / DL
NAS transport . 383
6.4 UE Procedures in RRC_INACTIVE state . 396
6.4.1 NG-RAN Only PLMN Selection in RRC_INACTIVE state . 396
6.4.1.1 PLMN Selection/Higher priority/HPLMN in Automatic PLMN Selection Mode . 396
6.4.1.2 Cell reselection of ePLMN in manual mode . 404
6.4.2 Cell Selection/Qrxlevmin & Cell Reselection (Intra NR in RRC_INACTIVE state) . 411
6.4.2.1 Cell Selection/Qrxlevmin & Cell Reselection (Intra NR in RRC_INACTIVE state) . 411
6.4.2.2 Inter-frequency cell reselection according to cell reselection priority provided by SIBs in
RRC_INACTIVE state . 418
6.4.2.3 Slice-based cell reselection in RRC_INACTIVE state / Re-selection priorities provided by

SIB16 . 424
6.4.3 Inter-RAT Cell Reselection . 429
6.4.3.1 Inter-RAT cell reselection From NR RRC_INACTIVE to E-UTRA RRC_IDLE (lower priority
& higher priority, Srxlev based) . 429
6.5 SNPN and CAG Selection . 435
6.5.1 SNPN Only Selection . 435
6.5.1.1 SNPN Selection in Manual Mode . 435
6.5.1.2 SNPN Selection in Automatic Mode. 438
6.5.1.3 SNPN / User Reselection in Automatic Mode . 442
6.5.2 CAG (Closed Access Group) . 444
6.5.2.1 CAG Selection in Manual Mode . 444
6.5.2.2 CAG Selection in Automatic Mode . 449
6.5.2.3 CAG / Limited Service / No Suitable cell . 455
6.5.2.4 CAG / cell reselection / Within allowed CAG / non-CAG cell to CAG cell . 461
6.5.2.5 Void. 466
6.5.2.6 CAG / cell reservation . 466
6.6 NR unlicensed idle mode operations . 474
6.6.1 NR unlicensed cell selection . 474
6.6.1.1 Cell selection / next strongest cell / Intra frequency reselection not allowed . 474
6.6.2 NR unlicensed cell reselection . 477
6.6.2.1 Cell reselection / next best cell / Intra frequency . 477
6.6.2.3 Cell reselection / next best cell / intra frequency / RRC Inactive . 480
7 Layer 2 . 484
7.1 NR Layer 2 . 484
7.1.0 Common test case specific values for Layer 2 . 484
7.1.1 MAC . 484
7.1.1.0 Default Pre-Test Conditions for all MAC test cases . 484
7.1.1.1 Random Access Procedures . 486
ETSI
3GPP TS 38.523-1 version 17.2.0 Release 17 6 ETSI TS 138 523-1 V17.2.0 (2023-07)
7.1.1.1.1 Correct selection of RACH parameters / Random access preamble and PRACH resource
explicitly signalled to the UE by RRC / contention free random access procedure . 486
7.1.1.1.1a Correct selection of RACH parameters / Random access preamble and PRACH resource
explicitly signalled to the UE by PDCCH Order / contention free random access
procedure . 494
7.1.1.1.2 Random access procedure / Successful / C-RNTI Based / Preamble selected by MAC
itself . 501
7.1.1.1.3 Random access procedure / Successful / SI request . 515
7.1.1.1.4 Random access procedure / Successful / Beam Failure / Preamble selected by MAC itself /
Non Contention Free RACH procedure . 524
7.1.1.1.5 Random access procedure / Successful / Supplementary Uplink . 539
7.1.1.1.6 Random access procedure / Successful/ Temporary C-RNTI Based / Preamble selected by
MAC itself . 544
7.1.1.1.7 Random access procedure / Successful/ Temporary C-RNTI Based / Preamble selected by

MAC itself . 557
7.1.1.1.8 Correct selection of RACH parameters / 2-step RACH/MSGA and PRACH resource
explicitly signalled to the UE by RRC / contention free random access procedure . 564
7.1.1.1.9 Random access procedure / Successful / 2-step RACH/C-RNTI Based / Preamble selected by
MAC itself . 574
7.1.1.1.10 Random access procedure / 2-step RACH/not complete/ RA_TYPE to 4-stepRA . 589
7.1.1.1.11 Random access procedure / Successful/ Slice specific RACH configuration . 595
7.1.1.1.12 Random access procedure / Successful/ ra-PrioritizationForSlicing . 598
7.1.1.1.13 Random access procedure / Successful / Slice specific RACH configuration / 2-step
RACH . 602
7.1.1.1.14 Random access procedure / Successful/ ra-PrioritizationForSlicingTwoStep / 2-step
RACH . 607
7.1.1.1.15 613
7.1.1.1.16 Random access procedure / RedCap UE identification / Msg3-based / CCCH1 . 613
7.1.1.1.17 Random access procedure / RedCap UE identification . 615
7.1.1.1.18 Random access procedure / Msg3 repetition indication / Random access resources
selection . 620
7.1.1.2 Downlink Data Transfer . 622
7.1.1.2.1 Correct Handling of DL MAC PDU / Assignment / HARQ process . 622
7.1.1.2.2 Correct Handling of DL HARQ process PDSCH Aggregation . 632
7.1.1.2.3 Correct HARQ process handling / CCCH . 638
7.1.1.2.4 Correct HARQ process handling / BCCH . 641
7.1.1.2.5 Correct HARQ process handling / DL grant prioritization . 644
7.1.1.3 Uplink Data Transfer. 646
7.1.1.3.1 Correct Handling of UL MAC PDU / Assignment / HARQ process . 646
7.1.1.3.2 Logical channel prioritization handling . 656
7.1.1.3.2b Logical channel prioritization handling with Mapping restrictions . 659
7.1.1.3.3 Correct handling of MAC control information / Scheduling requests . 667
7.1.1.3.4 Correct handling of MAC control information / Buffer status / UL data arrive in the UE Tx
buffer / Regular BSR . 671
7.1.1.3.5 Correct handling of MAC control information / Buffer Status / UL resources are allocated /
Padding BSR . 680
7.1.1.3.6 Correct handling of MAC control information / Buffer status / Periodic BSR timer
expires . 687
7.1.1.3.7 UE power headroom reporting / Periodic reporting / DL pathloss change reporting . 693
7.1.1.3.8 UE power headroom reporting / SCell activation / DL pathloss change reporting. 700
7.1.1.3.8.1 UE power headroom reporting / SCell activation / DL pathloss change reporting/ Intra-
band Contiguous CA . 700
7.1.1.3.8.2 UE power headroom reporting / SCell activation / DL pathloss change reporting / Inter-
band CA . 708
7.1.1.3.8.3 UE power headroom reporting / SCell activation / DL pathloss change reporting / Intra-
band non-Contiguous CA . 709
7.1.1.3.9 Correct Handling of UL HARQ process / PUSCH Repetition Type A / PUSCH
Aggregation . 709
7.1.1.3.10 Correct Handling of HARQ process / Multiple CORESETPoolIndex . 716
7.1.1.3.11 Correct handling of UL grant prioritization . 718
7.1.1.3.12 Correct Handling of UL HARQ process / PUSCH Repetition Type B . 725
7.1.1.3.13 Logical channel prioritization handling with Mapping restrictions / physical layer priority 735
ETSI
3GPP TS 38.523-1 version 17.2.0 Release 17 7 ETSI TS 138 523-1 V17.2.0 (2023-07)
7.1.1.3.14 740
7.1.1.3.15 740
7.1.1.3.16 Correct Handling of UL grant / DRB configured with survival time . 740
7.1.1.3.16.1 Correct Handling of UL grant / DRB configured with survival time / Split DRB . 740
7.1.1.3.16.2 Correct Handling of UL grant / DRB configured with survival time / MCG or SCG DRB /
Intra-band contiguous CA . 741
7.1.1.3.16.3 Correct Handling of UL grant / DRB configured with survival time / MCG or SCG DRB /
Intra-band non-contiguous CA. 744
7.1.1.3.16.4 Correct Handling of UL grant / DRB configured with survival time / MCG or SCG DRB /
Inter-band CA . 745
7.1.1.4 Transport Size Selection . 745
7.1.1.4.1 DL-SCH Transport Block Size Selection . 745
7.1.1.4.1.0 Common parameters for DL-SCH Transport Block Size Selection . 745
7.1.1.4.1.1 DL-SCH Transport Block Size selection / DCI format 1_0 . 746
7.1.1.4.1.2 Void . 755
7.1.1.4.1.3 DL-SCH transport block size selection / DCI format 1_1 / RA type 0/RA Type 1 / 2
Codewords enabled . 755
7.1.1.4.1.4 DL-SCH transport block size selection / DCI format 1_1 / RA type 0/RA Type 1 / 2
Codewords enabled / 256QAM. 766
7.1.1.4.1.5 DL-SCH transport block size selection / DCI format 1_2 . 778
7.1.1.4.2 UL-SCH Transport Block Size Selection . 789
7.1.1.4.2.0 Common parameters for UL-SCH Transport Block Size Selection . 789
7.1.1.4.2.1 UL-SCH Transport Block Size selection / DCI format 0_0 / Transform precoding
disabled . 791
7.1.1.4.2.2 Void . 803
7.1.1.4.2.3 UL-SCH transport block size selection / DCI format 0_1 / RA type 0/RA Type 1 /

Transform precoding disabled . 803
7.1.1.4.2.4 UL-SCH transport block size selection / DCI format 0_1 / RA type 0/RA Type 1 /
256QAM / Transform precoding disabled . 820
7.1.1.4.2.5 UL-SCH Transport Block Size selection / DCI format 0_0 / Transform precoding and
64QAM . 835
7.1.1.4.2.6 UL-SCH Transport Block Size selection / DCI format 0_2 . 847
7.1.1.5 Discontinuous reception . 863
7.1.1.5.0 DRX Common Definitions . 863
7.1.1.5.1 DRX operation / Short cycle not configured / Parameters configured by RRC . 863
7.1.1.5.2 DRX operation / Short cycle not configured / Long DRX command MAC control element
reception . 868
7.1.1.5.3 DRX operation / Short cycle configured / Parameters configured by RRC . 873
7.1.1.5.4 DRX operation / Short cycle configured / DRX command MAC control element
reception . 876
7.1.1.5.5 DRX operation / Short cycle configured / Long DRX command MAC control element
reception . 882
7.1.1.6 Semi-Persistent Scheduling . 886
7.1.1.6.1 Correct handling of DL assignment / Semi-persistent case . 886
7.1.1.6.2 Correct handling of UL grant / configured grant Type 1 . 893
7.1.1.6.3 Correct handling of UL grant / configured grant Type 2 . 903
7.1.1.6.4 Correct handling of DL assignment / Multi Semi-persistent configuration . 912
7.1.1.6.5 Correct handling of UL grant / Multi configured uplink grants . 919
7.1.1.7 Activation/Deactivation of SCells . 929
7.1.1.7.1 Activation/Deactivation of SCells / Activation/Deactivation MAC control element reception /

sCellDeactivationTimer . 929
7.1.1.7.1.1 Activation/Deactivation of SCells / Activation/Deactivation MAC control element
reception / sCellDeactivationTimer / Intra-band Contiguous CA . 929
7.1.1.7.1.2 Activation/Deactivation of SCells / Activation/Deactivation MAC control element
reception / sCellDeactivationTimer / Inter-Band CA . 935
7.1.1.7.1.3 Activation/Deactivation of SCells / Activation/Deactivation MAC control element
reception / sCellDeactivationTimer / Intra-band non-Contiguous CA . 935
7.1.1.8 Bandwidth Part (BWP) operation . 935
7.1.1.8.1 Bandwidth Part (BWP) operation UL/DL . 935
7.1.1.8.2 958
7.1.1.8.3 Separate BWP / IDLE / RedCap . 958
7.1.1.9 MAC Reconfiguration and Reset . 964
ETSI
3GPP TS 38.523-1 version 17.2.0 Release 17 8 ETSI TS 138 523-1 V17.2.0 (2023-07)
7.1.1.9.1 MAC Reset . 964
7.1.1.10 Other Procedures . 969
7.1.1.10.1 DataInactivityTimer expiry . 969
7.1.1.10.2 Recommended Bit Rate . 971
7.1.1.11 NR Dual Connectivity . 974
7.1.1.11.1 DC power headroom reporting / PSCell activation and DL pathloss change reporting . 974
7.1.1.12 UE power saving . 980
7.1.1.12.1 Void . 980
7.
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