| 29.171 | 0058 | 1 | 16.1.0 | Rel-16 | Essential Corrections to "High Accuracy Uncertainty Ellipse" type definition | C4-205553 | agreed | CP-203023 | approved | 16.2.0 |
| 29.171 | 0058 | - | 16.1.0 | Rel-16 | High Accuracy Uncertainty | C4-205247 | revised | | | |
| 29.171 | 0057 | 1 | 15.4.0 | Rel-15 | Essential Corrections to "High Accuracy Uncertainty Ellipse" type definition | C4-205551 | agreed | CP-203023 | approved | 15.5.0 |
| 29.171 | 0057 | - | 15.4.0 | Rel-15 | High Accuracy Uncertainty | C4-205246 | revised | | | |
| 29.171 | 0056 | - | 16.0.0 | Rel-16 | Corrections on Ciphering Data Set | C4-204301 | merged | | | |
| 29.171 | 0055 | 1 | 16.0.0 | Rel-16 | Updating positioning SIBs in Ciphering Data Set | C4-204435 | agreed | CP-202112 | approved | 16.1.0 |
| 29.171 | 0055 | - | 16.0.0 | Rel-16 | Updating positioning SIBs in Ciphering Data Set | C4-204274 | revised | | | |
| 29.171 | 0054 | - | 15.3.0 | Rel-15 | Adding Motion-Sensor Method | C4-194228 | agreed | CP-193034 | approved | 15.4.0 |
| 29.171 | 0053 | 1 | 15.2.0 | Rel-15 | Correction on Coverage Level | C4-193758 | agreed | CP-192093 | approved | 15.3.0 |
| 29.171 | 0053 | - | 15.2.0 | Rel-15 | Correction on Coverage Level | C4-193339 | revised | | | |
| 29.171 | 0052 | 1 | 14.2.0 | Rel-14 | Correction on Coverage Level | C4-193757 | agreed | CP-192093 | approved | 14.3.0 |
| 29.171 | 0052 | - | 14.2.0 | Rel-14 | Correction on Coverage Level | C4-193338 | revised | | | |
| 29.171 | 0051 | 1 | 15.2.0 | Rel-15 | Addition of High Accuracy location estimates | C4-193762 | agreed | CP-192095 | approved | 15.3.0 |
| 29.171 | 0051 | - | 15.2.0 | Rel-15 | Addition of High Accuracy location estimates | C4-193130 | revised | | | |
| 29.171 | 0050 | 1 | 15.2.0 | Rel-15 | Correction of ASN.1 errors | C4-193760 | agreed | CP-192095 | approved | 15.3.0 |
| 29.171 | 0050 | - | 15.2.0 | Rel-15 | Correction of ASN.1 errors | C4-193129 | revised | | | |
| 29.171 | 0049 | - | 15.2.0 | Rel-15 | Missing id-Coverage-Level | C4-193034 | merged | | | |
| 29.171 | 0048 | - | 14.2.0 | Rel-14 | Missing id-Coverage-Level | C4-193033 | merged | | | |
| 29.171 | 0047 | - | 15.2.0 | Rel-15 | Ciphering key lost | C4-193032 | agreed | CP-192095 | approved | 15.3.0 |
| 29.171 | 0046 | 1 | 15.1.0 | Rel-15 | LTE-M RAT Type | C4-190545 | agreed | CP-190034 | approved | 15.2.0 |
| 29.171 | 0046 | - | 15.1.0 | Rel-15 | LTE-M RAT Type | C4-190132 | revised | | | |
| 29.171 | 0045 | - | 15.0.0 | Rel-15 | Update of SIB Types information in Ciphering Data Set | C4-185098 | agreed | CP-182077 | approved | 15.1.0 |
| 29.171 | 0044 | 1 | 14.2.0 | Rel-15 | Ciphering keys delivery to support broadcast of ciphered assistance data in E-UTRAN | C4-184451 | withdrawn | | | |
| 29.171 | 0044 | - | 14.2.0 | Rel-15 | Ciphering keys delivery to support broadcast of ciphered assistance data in E-UTRAN | C4-184312 | revised | | | |
| 29.171 | 0043 | 1 | 14.2.0 | Rel-15 | Ciphering keys delivery to support broadcast of ciphered assistance data in E-UTRAN | C4-184450 | agreed | CP-181124 | approved | 15.0.0 |
| 29.171 | 0043 | - | 14.2.0 | Rel-15 | Ciphering keys delivery to support broadcast of ciphered assistance data in E-UTRAN | C4-184118 | revised | | | |
| 29.171 | 0042 | - | 14.1.0 | Rel-14 | Introduction of New types of eNB ID | C4-175138 | agreed | CP-173020 | approved | 14.2.0 |
| 29.171 | 0041 | 1 | 13.2.0 | Rel-13 | LCS-AP correction | C4-172282 | agreed | CP-171025 | approved | 13.3.0 |
| 29.171 | 0041 | - | 13.2.0 | Rel-13 | LCS-AP correction | C4-172264 | revised | | | |
| 29.171 | 0040 | 1 | 12.2.0 | Rel-12 | LCS-AP corrections | C4-172281 | agreed | CP-171025 | approved | 12.3.0 |
| 29.171 | 0040 | - | 12.2.0 | Rel-12 | LCS-AP corrections | C4-172263 | revised | | | |
| 29.171 | 0039 | 2 | 14.0.0 | Rel-14 | LCS-AP corrections | C4-172283 | agreed | CP-171025 | approved | 14.1.0 |
| 29.171 | 0039 | 1 | 14.0.0 | Rel-14 | LCS-AP corrections | C4-172201 | revised | | | |
| 29.171 | 0039 | - | 14.0.0 | Rel-14 | LCS-AP corrections | C4-172126 | revised | | | |
| 29.171 | 0038 | 1 | 14.0.0 | Rel-14 | Location service message size adaptation according to coverage level | C4-172204 | agreed | CP-171030 | approved | 14.1.0 |
| 29.171 | 0038 | - | 14.0.0 | Rel-14 | Location service message size adaptation according to coverage level | C4-172064 | revised | | | |
| 29.171 | 0037 | 3 | 14.0.0 | Rel-14 | Enhancements to Location Services for CIoT | C4-172205 | agreed | CP-171030 | approved | 14.1.0 |
| 29.171 | 0037 | 2 | 14.0.0 | Rel-14 | Enhancements to Location Services for CIoT | C4-172081 | revised | | | |
| 29.171 | 0037 | 1 | 14.0.0 | Rel-14 | Enhancements to Location Services for CIoT | C4-171323 | revised | | | |
| 29.171 | 0037 | - | 14.0.0 | Rel-14 | Enhancements to Location Services for CIoT | C4-171127 | revised | | | |
| 29.171 | 0036 | 1 | 13.2.0 | Rel-14 | Cell Portion ID Extension | C4-166214 | agreed | CP-160668 | approved | 14.0.0 |
| 29.171 | 0036 | - | 13.2.0 | Rel-14 | Cell Portion ID Extension | C4-166052 | revised | | | |
| 29.171 | 0035 | 1 | 13.2.0 | Rel-14 | Consistency for UE-based positioning method in LPP | C4-166215 | agreed | CP-160668 | approved | 14.0.0 |
| 29.171 | 0035 | - | 13.2.0 | Rel-14 | Consistency for UE-based positioning method in LPP | C4-166014 | revised | | | |
| 29.171 | 0034 | - | 13.1.0 | Rel-13 | Implementation Error in CR#29 | C4-161139 | agreed | CP-160024 | approved | 13.2.0 |
| 29.171 | 0033 | - | 13.0.0 | Rel-13 | ASN.1 Corrections | C4-152045 | agreed | CP-150740 | approved | 13.1.0 |
| 29.171 | 0032 | - | 12.1.0 | Rel-12 | ASN.1 Corrections | C4-152044 | agreed | CP-150740 | approved | 12.2.0 |
| 29.171 | 0031 | 1 | 11.3.0 | Rel-11 | ASN.1 Corrections | C4-152318 | agreed | CP-150740 | approved | 11.4.0 |
| 29.171 | 0031 | - | 11.3.0 | Rel-11 | ASN.1 Corrections | C4-152043 | revised | | | |
| 29.171 | 0030 | 1 | 10.4.0 | Rel-10 | ASN.1 Corrections | C4-152316 | agreed | CP-150740 | approved | 10.5.0 |
| 29.171 | 0030 | - | 10.4.0 | Rel-10 | ASN.1 Corrections | C4-152042 | revised | | | |
| 29.171 | 0029 | 2 | 13.0.0 | Rel-13 | Indoor Positioning support in LCS-AP | C4-152320 | agreed | CP-150766 | approved | 13.1.0 |
| 29.171 | 0029 | 1 | 13.0.0 | Rel-13 | Indoor Positioning support in LCS-AP | C4-152236 | revised | | | |
| 29.171 | 0029 | - | 13.0.0 | Rel-13 | Indoor Positioning support in LCS-AP | C4-152032 | revised | | | |
| 29.171 | 0028 | 1 | 13.0.0 | Rel-13 | Updates to SLs protocol between MME and E-SMLC | C4-152201 | withdrawn | | | |
| 29.171 | 0028 | - | 13.0.0 | Rel-13 | Updates to SLs protocol between MME and E-SMLC | C4-151985 | revised | | | |
| 29.171 | 0027 | 1 | 12.1.0 | Rel-13 | Clarification on the MME behaviour upon expiration of timer T3x01 | C4-151342 | agreed | CP-150441 | approved | 13.0.0 |
| 29.171 | 0027 | - | 12.1.0 | Rel-13 | Clarification on the MME behaviour upon expiration of timer T3x01 | C4-151162 | revised | | | |
| 29.171 | 0026 | - | 12.0.0 | Rel-12 | Value range of Cell Portion ID | C4-140994 | agreed | CP-140269 | approved | 12.1.0 |
| 29.171 | 0025 | 1 | 12.0.0 | Rel-12 | Adding E-SMLC provided Cell info and Cell Portion | C4-132113 | agreed | CP-130631 | approved | 12.1.0 |
| 29.171 | 0025 | - | | Rel-12 | Adding E-SMLC provided Cell info and Cell Portion | C4-132043 | revised | - | | |
| 29.171 | 0024 | 1 | 11.2.0 | Rel-11 | APDU in Connection Oriented Information message | C4-130828 | agreed | CP-130287 | approved | 11.3.0 |
| 29.171 | 0024 | - | 11.2.0 | Rel-11 | APDU in Connection Oriented Information message | C4-130699 | revised | - | | |
| 29.171 | 0023 | 1 | 11.1.0 | Rel-11 | Mandatory Correlation ID in Connection Oriented Information | C4-122082 | | CP-120880 | approved | 11.2.0 |
| 29.171 | 0023 | 1 | 11.1.0 | Rel-11 | Mandatory Correlation ID in Connection Oriented Information | C4-122082 | agreed | - | | |
| 29.171 | 0023 | - | 11.1.0 | Rel-11 | Mandatory Correlation ID in Connection Oriented Information | C4-121398 | postponed | - | | |
| 29.171 | 0022 | 1 | 10.3.0 | Rel-10 | Mandatory Correlation ID in Connection Oriented Information | C4-122081 | | CP-120880 | approved | 10.4.0 |
| 29.171 | 0022 | 1 | 10.3.0 | Rel-10 | Mandatory Correlation ID in Connection Oriented Information | C4-122081 | agreed | - | | |
| 29.171 | 0022 | - | 10.3.0 | Rel-10 | Mandatory Correlation ID in Connection Oriented Information | C4-121397 | postponed | - | | |
| 29.171 | 0021 | 2 | 11.0.0 | Rel-11 | Use of multiple SCTP associations between MME and E-SMLC | C4-120390 | agreed | CP-120038 | approved | 11.1.0 |
| 29.171 | 0021 | 1 | 11.0.0 | Rel-11 | Use of multiple SCTP associations between MME and E-SMLC | C4-120228 | revised | - | | |
| 29.171 | 0021 | - | 11.0.0 | Rel-11 | Use of multiple SCTP associations between MME and E-SMLC | C4-120118 | revised | - | | |
| 29.171 | 0020 | 1 | 10.3.0 | Rel-11 | Polygon encoding correction | C4-112093 | agreed | CP-110579 | approved | 11.0.0 |
| 29.171 | 0020 | - | | Rel-11 | Polygon encoding correction | C4-111818 | revised | - | | |
| 29.171 | 0019 | - | 10.2.0 | Rel-10 | Supported GAD shapes | C4-111200 | postponed | - | | |
| 29.171 | 0018 | - | 9.3.0 | Rel-9 | Supported GAD shapes | C4-111199 | postponed | - | | |
| 29.171 | 0017 | - | 10.2.0 | Rel-10 | LPP protocol layering | C4-111173 | withdrawn | - | | |
| 29.171 | 0016 | 1 | 10.2.0 | Rel-10 | Protocol Layering for LCS-AP | C4-111502 | agreed | CP-110365 | approved | 10.3.0 |
| 29.171 | 0016 | - | 10.2.0 | Rel-10 | Protocol Layering for LCS-AP | C4-111123 | revised | - | | |
| 29.171 | 0015 | 1 | 9.3.0 | Rel-9 | Protocol Layering for LCS-AP | C4-111501 | agreed | CP-110365 | approved | 9.4.0 |
| 29.171 | 0015 | - | 9.3.0 | Rel-9 | Protocol Layering for LCS-AP | C4-111122 | revised | - | | |
| 29.171 | 0014 | 2 | 10.1.0 | Rel-10 | Fix mismatches between technical description and ASN.1 coding | C4-110764 | agreed | CP-110054 | approved | 10.2.0 |
| 29.171 | 0014 | 1 | 10.1.0 | Rel-10 | Fix mismatches between technical description and ASN.1 coding | C4-110539 | revised | - | | |
| 29.171 | 0014 | - | 10.1.0 | Rel-10 | Fix mismatches between technical description and ASN.1 coding | C4-110120 | revised | - | | |
| 29.171 | 0013 | 2 | 9.2.0 | Rel-9 | Fix mismatches between technical description and ASN.1 coding | C4-110763 | agreed | CP-110054 | approved | 9.3.0 |
| 29.171 | 0013 | 1 | 9.2.0 | Rel-9 | Fix mismatches between technical description and ASN.1 coding | C4-110538 | revised | - | | |
| 29.171 | 0013 | - | 9.2.0 | Rel-9 | Fix mismatches between technical description and ASN.1 coding | C4-110119 | revised | - | | |
| 29.171 | 0012 | - | 10.1.0 | Rel-10 | Civic Address Reporting in SLs | C4-102898 | withdrawn | - | | |
| 29.171 | 0011 | - | 10.0.0 | Rel-10 | Add LCS-AP port identifier, payload protocol identifier and Elementary Procedure number | C4-102258 | agreed | CP-100463 | approved | 10.1.0 |
| 29.171 | 0010 | - | 10.0.0 | Rel-10 | Port number and the Payload protocol identifier | C4-102177 | withdrawn | - | | |
| 29.171 | 0009 | - | 9.1.0 | Rel-9 | Port number and the Payload protocol identifier | C4-102176 | withdrawn | - | | |
| 29.171 | 0008 | - | 10.0.0 | Rel-10 | EUTRAN Positioning Data | C4-102132 | withdrawn | - | | |
| 29.171 | 0007 | - | 9.1.0 | Rel-9 | EUTRAN Positioning Data | C4-102131 | withdrawn | - | | |
| 29.171 | 0006 | 1 | 10.0.0 | Rel-10 | ASN1 Encoding Format | C4-102264 | agreed | CP-100463 | approved | 10.1.0 |
| 29.171 | 0006 | - | 10.0.0 | Rel-10 | ASN1 Encoding Format | C4-102130 | revised | - | | |
| 29.171 | 0005 | 1 | 9.1.0 | Rel-9 | ASN1 Encoding Format | C4-102263 | agreed | CP-100463 | approved | 9.2.0 |
| 29.171 | 0005 | - | 9.1.0 | Rel-9 | ASN1 Encoding Format | C4-102129 | revised | - | | |
| 29.171 | 0004 | 1 | 9.1.0 | Rel-9 | Add LCS-AP port identifier, payload protocol identifier and Elementary Procedure number | C4-102257 | agreed | CP-100463 | approved | 9.2.0 |
| 29.171 | 0004 | - | 9.1.0 | Rel-9 | Add LCS-AP port identifier, payload protocol identifier and Elementary Procedure number | C4-102007 | revised | - | | |
| 29.171 | 0003 | - | 9.0.0 | Rel-9 | Correction to Cell ID category | C4-101227 | agreed | CP-100286 | approved | 9.1.0 |
| 29.171 | 0002 | 3 | 9.0.0 | Rel-10 | Provide Service Type ID to E-SMLC | CP-100417 | | CP-100417 | approved | 10.0.0 |
| 29.171 | 0002 | 2 | 9.0.0 | Rel-10 | Provide Service Type ID to E-SMLC | - | | CP-100372 | revised | |
| 29.171 | 0002 | 1 | | Rel-10 | Provide Service Type ID to E-SMLC | C4-101398 | withdrawn | - | | |
| 29.171 | 0002 | - | | Rel-10 | Provide Service Type ID to E-SMLC | C4-101226 | revised | - | | |
| 29.171 | 0001 | - | 9.0.0 | Rel-9 | Correction to Positioning Data Element | C4-101146 | agreed | CP-100286 | approved | 9.1.0 |