SCS

Subcarrier Spacing

Physical Layer →
Introduced in R99 Also in: Services, Testing, User Equipment, Core Network

SCS is the fundamental frequency spacing between adjacent orthogonal subcarriers in an OFDM-based system like 5G NR, determining symbol duration and enabling flexible numerology for diverse services.

Category
Physical Layer
Introduced
R99
Where
Radio Access Network › NG-RAN (5G)
Also touches
4 segments
Specifications
127 specs
SCS Description Purpose Related Classification Detected Changes Specifications

Description

Subcarrier Spacing (SCS) is a core parameter in Orthogonal Frequency Division Multiplexing (OFDM) and Orthogonal Frequency Division Multiple Access (OFDMA) systems, which form the foundation of 4G LTE and 5G New Radio (NR) air interfaces. It defines the center-to-center frequency difference between neighboring subcarriers that make up the system's overall channel bandwidth. In these systems, user data is split and modulated onto many closely spaced, orthogonal subcarriers transmitted in parallel. The orthogonality, which prevents inter-carrier interference, is mathematically maintained when the SCS is exactly the reciprocal of the useful symbol duration (excluding the cyclic prefix). Therefore, SCS directly dictates the time-domain structure: a larger SCS results in a shorter symbol duration and a shorter slot length, and vice-versa.

Architecturally, SCS is part of the 'numerology' of the OFDM system. In 5G NR, this concept was greatly expanded with the introduction of flexible numerology, where the SCS is defined as Δf = 2μ * 15 kHz, where μ is an integer numerology parameter (e.g., 0, 1, 2, 3, 4). This yields standard SCS values like 15 kHz (μ=0, common in LTE), 30 kHz (μ=1), 60 kHz (μ=2), 120 kHz (μ=3), and 240 kHz (μ=4). Each numerology creates a different time-frequency grid structure. The network can configure different numerologies for different frequency ranges (FR1: sub-6 GHz, FR2: mmWave) and for different service requirements. A wider SCS provides greater robustness to Doppler spread and phase noise, making it suitable for high-frequency bands and high-speed mobility, while a narrower SCS offers longer symbols, which is beneficial for coverage extension and efficient support of narrowband IoT devices.

SCS plays a multifaceted role in the network. It is a key determinant of system performance and flexibility. It influences the overhead from the cyclic prefix (CP), the latency (via symbol and slot duration), the sensitivity to frequency offsets, and the achievable phase tracking accuracy. During initial access, a device detects the SCS from synchronization signals. The gNodeB (in 5G) or eNodeB (in LTE) schedules resources on the physical downlink and uplink shared channels based on the configured numerology. The choice of SCS is thus a critical link-level configuration that enables 5G to meet its diverse Key Performance Indicators (KPIs) for enhanced Mobile Broadband (eMBB), Ultra-Reliable Low-Latency Communications (URLLC), and massive Machine-Type Communications (mMTC).

Purpose & Motivation

The concept of Subcarrier Spacing existed in LTE, but it was fixed at 15 kHz for most downlink and uplink scenarios, with a special 7.5 kHz spacing used only for the narrowband MBSFN subframes. This fixed approach was sufficient for 4G's primary focus on mobile broadband. However, the vastly expanded scope of 5G—encompassing frequencies from below 1 GHz to millimeter waves, and services from low-power IoT to high-speed trains and factory automation—required a more flexible foundation. A single, fixed SCS could not optimally address the conflicting requirements of wide coverage (needing long symbols), high mobility and high frequencies (needing short symbols to combat Doppler/phase noise), and ultra-low latency (needing short transmission time intervals).

The introduction of flexible numerology based on scalable SCS in 5G NR solved this problem. It allowed the system to adapt its fundamental time-frequency structure to the deployment scenario. This flexibility was the key physical layer innovation that enabled 5G to be truly versatile. For example, a 15 kHz SCS can be used for wide-area coverage in sub-1 GHz bands, 30 kHz or 60 kHz for mainstream mobile broadband in mid-bands, and 120 kHz or 240 kHz for millimeter-wave deployments where phase noise is significant. It also allows for mixed numerologies within the same carrier, supporting latency-critical URLLC traffic on a wider SCS 'mini-slot' while eMBB traffic continues on a narrower SCS grid. This purpose-driven adaptability is central to 5G's ability to serve as a unified platform for all communication needs.

Classification

Part ofOFDM
Specific typesUAE

Detected Changes Across Releases

from 3GPP Change Requests

Specific changes extracted from the „Change history“ tables of 3GPP specifications (56 CRs across 5 releases). Complements the general historical overview above with the evidence-based evolution of this function.

Rel-15 12 changes

In Release 15, enhancements were made to the Northbound APIs for SCEF-SCS/AS Interworking, covering clauses 1-3 and clause 4. The release also introduced procedures for notifying the SCS/AS about the loss of transmission resources and removed the SCS/AS identifier from certain responses. Furthermore, clarifications were added regarding reporting location to the SCS/AS for a group of UEs via the PCRF.

  • Northbound APIs for SCEF - SCS/AS Interworking - Clause 1-3 enhancements TS 23.682CR0271
  • Northbound APIs for SCEF - SCS/AS Interworking - Clause 4 enhancements TS 23.682CR0272
  • Removing SCS/AS Identifier from Response TS 23.682CR0354
  • Notifying SCS/AS about loss of transmission resources TS 23.682CR0364
  • CR to TS 38.104 on Combined updates from RAN4 #90 This document combines the proposed changes in the following Draft CRs from RAN4 #90: - R4-1900284, "Draft CR on NR PUCCH format2 performance requirements for TS 38.104" - R4-1900763, "Draft CR to TS 38.104: Update of performance requirement numbers for DFT-s-OFDM based PUSCH" - R4-1900876, "Draft CR to TS 38.104: On RX spurious emissions requirement" - R4-1900968, "Draft CR for 38.104: Performance requirements for NR PUCCH format 1" - R4-1901329, "Draft CR to 38.104: Annex C.6 correction" - R4-1901330, "Draft CR to 38.104: Abbreviations addition" - R4-1901387, "Draft CR to TS 38.104 BS demodulation PUCCH format 0 requirements" - R4-1901474, "Draft CR to TS 38.104: Corrections on transmitter co-existence and co-location requirements" - R4-1901483, "Draft CR to TS 38.104: Corrections on general intermodulation requirement" - R4-1902239, "Draft CR to TS 38.104: Addition of missing EIRP/EIS definitions in terminology in clause 3.1" - R4-1902241, "Draft CR to 38.104; clarification of BS power limits" - R4-1902245, "Draft CR to 38.104: Correction to FR2 OTA Interfering signal mean power units" - R4-1902246, "Draft CR to 38.104; Correction to definition of OTA reference sensitivity" - R4-1902260, "draft CR to TS 38.104 - update emissions scaling" - R4-1902338, "Draft CR: Update on FR1 range extension for TS38.104" - R4-1902389, "draftCR for 38.104 on PUSCH requirements with CP-OFDM and FR1" - R4-1902394, "Draft CR to TS 38.104 – PUSCH requirements with CP-OFDM for FR2" - R4-1902396, "CR: Updates to PUCCH formats 3 and 4 performance requirements in TS 38.104" - R4-1902444, "Draft CR to TS 38.104: Editorial CR for BS demodulation requirements" - R4-1902561, "Draft CR for updating PRACH performance requirements in TS38.104" - R4-1902571, "Corrections to 38.104 Delay profile calculation" - R4-1902642, "Draft CR to TS 38.104: Correction on multi-band operation related requirements" TS 38.104CR0019
  • CR to TS 38.104 Combined updates from RAN4 #90bis and RAN4#91 From RAN4 #90bis: - R4-1903105, "Draft CR to TS 38.104: Corrections on terminologies and editorial errors" - R4-1903319, "Draft CR to TS 38.104: removal of unused definition: "minimum EIRP level under extreme condition"" - R4-1903320, "Draft CR to TS 38.104: OSDD information correction" - R4-1903457, "Draft CR to TS 38.104: Removal of FFS for FR2 TDD OFF power level requirement in clause 9.5" - R4-1903499, "Draft CR to 38.104: Correction to unwanted emissions mask for bands n7 and n38" - R4-1903836, "Draft CR to TS 38.104: Correction on description on multi-band operation in section 4.8" - R4-1904024, "Draft CR to TS 38.104 Applicability rules for BS demodulation" - R4-1904234, "draftCR: Correlation matrix for 8Rx in TS 38.104" - R4-1904723, "Draft CR to TS 38.104: Update of performance requirements for DFT-s-OFDM based PUSCH" - R4-1904726, "draftCR for 38.104 on PUSCH requirements with CP-OFDM and FR1" - R4-1904729, "Draft CR on PRACH performance requirements in TS38.104" - R4-1904734, "Draft CR on TS 38.104 Performance requirement for PUCCH format 1" - R4-1904735, "Draft CR on NR PUCCH format2 performance requirements for TS 38.104" - R4-1904739, "Draft CR to TS 38.104 BS demodulation PUCCH format 0 requirements" - R4-1904745, "draftCR: Updates to PUCCH formats 3 and 4 performance requirements in TS 38.104" - R4-1904799, "Draft CR to TS 38.104: FRC update for PUSCH FR1 mapping type B and FR2 DMRS 1+1" - R4-1904816, "Draft CR : Clarification on step 5 and step 6 for delay profiles calculation (38.104)" - R4-1904842, "Draft CR to TS 38.104 BS demodulation CP-OFDM PUSCH FR2 requirements" - R4-1905126, "draft CR to 38.104 for TAE requirements" - R4-1905139, "draft CR to TS 38.104 on EVM measurement (Annex B and C)" - R4-1905140, "Draft CR: editorial correction on FR1 spurious emission requirement in TS38.104" - R4-1905143, "Draft CR for TS 38.104: Addition of NOTE for transmitter intermodulation requirements in certain regions" - R4-1905144, "Draft CR to TS 38.104: FRC reference corrections for the Rx requirements" - R4-1905145, "Draft CR to TS 38.104: Clarification on application of interfering signal offsets for ACS, blocking and intermodulation requirements" - R4-1905148, "Draft CR to TS 38.104: Corrections on out-of-band blocking requirement" From RAN4 #91: - R4-1906002, "Draft CR to 38.104: Subclause 6.7 and 9.8 transmitter intermodulation – correction of interfering signal type" - R4-1906096, "Draft CR to 38.104: Correction of frequency range for OTA spurious emissions" - R4-1906311, "Draft CR to 38.104: Correction on FRC (Annex A)" - R4-1906346, "Removal of n65 in Rel-15 38.104" - R4-1906915, "Draft CR to TS 38.104: Clarification on application of interfering signal offsets for OTA ACS, blocking and intermodulation requirements" - R4-1906918, "Draft CR to TS 38.104: Clarification on type of interfering signal for ACS, in-band blocking and ICS requirements" - R4-1907110, "Draft CR to TS 38.104: correction of the fundamental frequency limit of 2.55GHz for the spurious emissions" - R4-1907246, "Draft CR to TS 38.104: Update of performance requirements for DFT-s-OFDM based PUSCH" - R4-1907249, "Draft CR to TS 38.104: Correction on the terminology in PUSCH FRC tables" - R4-1907252, "Draft CR to TS38.104: Updates of PRACH performance requirements" - R4-1907255, "Draft CR on NR PUCCH format2 performance requirements for TS 38.104" - R4-1907258, "Draft CR on NR UCI on PUSCH performance requirements for TS 38.104" - R4-1907261, "draftCR: Updates to PUCCH formats 3 and 4 performance requirements in TS 38.104" - R4-1907266, "Draft CR on TS 38.104 Performance requirement for PUCCH format 1" - R4-1907267, "Draft CR on TS 38.104 Performance requirement for multi-slot PUCCH format 1" - R4-1907272, "Draft CR to TS 38.104 BS demodulation PUCCH format 0 requirements" - R4-1907275, "Draft CR to TS 38.104 BS demodulation CP-OFDM PUSCH FR2 requirements" - R4-1907277, "draftCR for 38.104 on PUSCH requirements with CP-OFDM and FR1" - R4-1907629, "Draft CR to 38.104: Term “reference signal” replacing by term “ideal signal” in EVM context" - R4-1907634, "Draft CR to 38.104: corrections to the EVM annex" - R4-1907659, "Draft CR to TS 38.104 on Spurious emission Category B in FR2" - R4-1907661, "Draft CR to 38.104 Definition of contiguous transmission bandwidth" - R4-1907662, "Draft CR to 38.104: BS TAE requirements" - R4-1907664, "Draft CR to 38.104: Clarification of interferer RB frequency for narrowband blocking" - R4-1907672, "Draft CR for TS 38.104: Correction on EVM" - R4-1907689, "Correction to CA carrier spacing" TS 38.104CR0029

+ 6 more changes

Rel-16 26 changes

In Release 16, key refinements for Subcarrier Spacing (SCS) included the introduction of a mechanism for cross-carrier scheduling with different SCS via 'enableDefaultBeamForCCS' and corrections to the description of SCS parameters in the MIB, BWP, and RACH configurations (msg1-SubcarrierSpacing and msgA-SubcarrierSpacing). Furthermore, the release specified channel spacing rules for carrier aggregation, including scenarios between NR carriers and between E-UTRA and NR carriers.

  • CR to TS 38.104 BS demodulation CP-OFDM PUSCH FR2 requirements TS 38.104CR0102
  • Adding enableDefaultBeamForCCS for cross-carrier scheduling with different SCS TS 38.331CR1803
  • Correction on description of subCarrierSpacing in BWP TS 38.331CR2561
  • Correction on description of msg1-SubcarrierSpacing in RACH-ConfigCommon TS 38.331CR2652
  • MIB correction on subCarrierSpacingCommon TS 38.331CR2754
  • Correction on msgA-SubcarrierSpacing TS 38.331CR2814

+ 20 more changes

Rel-17 3 changes

In Release 17, the changes to the Subcarrier Spacing (SCS) function focused on specific corrections to ensure proper configuration and reference. These included a correction for the reference SCS configuration used in the co-DurationList procedure, a fix for the reference SCS in eIAB availability indication, and an adjustment to the SCS configuration for the parallel transmission of PRACH alongside SRS, PUCCH, or PUSCH.

  • Correction on a reference SCS configuration for co-DurationList in TS 38.213 TS 38.213CR0348
  • Correction on reference SCS for availability indication in eIAB TS 38.213CR0477
  • Correction on SCS configuration for parallel transmission of PRACH and SRS/PUCCH/PUSCH TS 38.213CR0411
Rel-18 11 changes

In Release 18, key enhancements for Subcarrier Spacing (SCS) included the addition of 30 kHz to the Sync Raster for Band n53 and the introduction of new Scheduling Request (SR) periodicities specifically for 30 kHz and 120 kHz SCS configurations. The release also delivered corrections and updates for SCS applications in various areas, including a correction for the missing PRACH SCS configuration and a RedCap-specific initial BWP SCS correction.

  • Addition of 30 KHz SCS for Sync Raster for Band n53 TS 38.104CR0497
  • Introduction of new capability for intra-band EN-DC channel spacing [Intra-Band_EN-DC_Channelspacing] TS 38.331CR5013
  • Adding SR periodicities for 30 and 120 kHz subcarrier spacing [SR-Periods-30-120-kHz] TS 38.331CR3971
  • Updates to Clause 5 and addition of reference sensitivity test cases with variable Tx-Rx spacing for NB-IoT for NTN bands TS 36.521CR0096
  • Updates to complete the reference sensitivity test case with variable Tx-Rx spacing for NB-IoT for NTN bands TS 36.521CR0100
  • (NR_FDD_ULn28_DLn75_n76) CR for TS 38.104: Correct channel bandwidths and SCS supported by band n109 TS 38.104CR0622

+ 5 more changes

Rel-19 4 changes

In Release 19, the work on Subcarrier Spacing (SCS) focused on clarifications and corrections to existing specifications. This included clarifying the procedure for sending the S&F event from the SCEF to the SCS/AS and providing a correction on the permissible `subcarrierSpacing` values within the `SCS-SpecificCarrier` Information Element. Furthermore, a clarification was made regarding the restriction of a single SCS per frequency.

  • Clarify the S&F event is sent from SCEF to SCS/AS TS 23.682CR0498
  • Update to applicability of the test case for variable Tx-Rx spacing for NR NTN bands TS 38.522CR0650
  • Clarification of the single SCS per frequency restriction TS 38.300CR1053
  • Correction on subcarrierSpacing values in IE SCS-SpecificCarrier TS 38.331CR5502

Explore further

Broader topics and technologies where SCS plays a role.

Topics
LTE / LTE-Advanced5G NR (New Radio)Lawful InterceptIoT & MTCServices & ApplicationsRadio Access Network
Technologies
LTE5G

Defining Specifications

3GPP specifications that define or reference SCS, with the latest known release. Sourced from the 3GPP document catalog — see methodology.

SpecificationTitleRelease
TS 22.121 v1400 Virtual Home Environment Requirements Rel-5
TS 23.127 v1600 Virtual Home Environment Stage 2 Specification Rel-6
TS 23.153 vj00 Out-of-Band Transcoder Control Stage 2 Rel-19
TS 23.198 v1900 Open Service Access (OSA); Stage 2 Rel-9
TS 23.218 vj00 IMS Call Model Specification Rel-19
TS 23.222 vj80 Common API Framework for 3GPP Northbound APIs Rel-19
TS 23.228 vj50 IMS Stage-2 Service Description Rel-19
TS 23.271 vj00 LCS Stage 2 Specification Rel-19
TS 23.286 vj00 V2X Application Enabler Architecture Rel-19
TS 23.554 vj70 MSGin5G Service Application Architecture Rel-19
TS 23.682 vj30 3GPP TS 23682: MTC Architecture Enhancements Rel-19
TS 23.722 vf10 Common API Framework (CAPIF) for 3GPP Northbound APIs Rel-15
TS 24.538 vj30 MSGin5G Service Protocol Specification Rel-19
TS 24.560 vj00 AIML Enablement (AIMLE) Services Stage 3 Protocol Rel-19
TR 26.928 vj00 Study on eXtended Reality (XR) in 5G Rel-19
TS 28.062 vj00 Tandem Free Operation (TFO) Service Description Rel-19
TS 28.314 vk00 Management and Orchestration - Plug and Connect Rel-20
TS 28.849 vj10 CAPIF Phase2 Charging Study Rel-19
TS 29.122 vj40 T8 Reference Point for Northbound APIs Rel-19
TS 29.153 vj00 Ns Reference Point Protocol between SCEF and RCAF Rel-19
TS 29.198 v1900 OSA API Overview Specification Rel-9
TS 29.214 vj20 Policy and Charging Control over Rx Rel-19
TS 29.222 vj40 Common API Framework (CAPIF) for 3GPP Northbound APIs Rel-19
TS 29.336 vj10 HSS Diameter Interfaces for PDN Interworking Rel-19
TS 29.337 vj00 Diameter T4 Interface for MTC Device Triggering Rel-19
TS 29.368 vj00 Tsp Reference Point Stage 3 Specification Rel-19
TS 29.549 vj40 SEAL API Specification for Vertical Applications Rel-19
TS 29.864 v801 Application Server Service Data Definition for IMS Telephony Rel-8
TS 32.240 vj40 Charging Management Architecture & Principles Rel-19
TS 32.254 vj21 Charging for Northbound APIs Rel-19
TS 32.299 vj00 Diameter Charging Applications for 3GPP Rel-19
TS 33.127 vj50 Lawful Interception Architecture and Functions Rel-19
TS 34.121 v1970 UE Conformance Spec for FDD Radio Rel-9
TS 34.123 vi30 UE Conformance Specification Rel-18
TS 34.229 vj21 IMS SIP/SDP UE Conformance Testing for 5GS Rel-19
TS 36.108 vj10 Satellite Access Node RF Requirements Rel-19
TS 36.181 vj30 E-UTRA RF Test Methods for Satellite Access Node Rel-19
TS 36.521 vj00 E-UTRA UE Conformance ICS Proforma Rel-19
TS 36.523 vj00 UE Conformance Test Spec for Idle Mode Rel-19
TS 37.104 vj10 MSR Base Station RF Characteristics Rel-19
TS 37.141 vj10 RF Test Methods for Multi-Standard Radio Base Stations Rel-19
TS 37.145 vj10 AAS Base Station Conducted Conformance Testing Rel-19
TS 37.571 vj00 UE Conformance for Positioning Rel-19
TS 37.579 vi40 Mission Critical services conformance testing Rel-18
TS 37.716 3GPP TR 37.716 R99
TS 37.717 3GPP TR 37.717 R99
TS 37.718 3GPP TR 37.718 R99
TS 37.719 vj00 3GPP TR 37.719: Dual Connectivity Band Combinations Rel-19
TR 37.829 vi00 Technical Report Rel-18
TS 37.863 3GPP TR 37.863 R99
TS 37.864 3GPP TR 37.864 R99
TS 37.865 3GPP TR 37.865 R99
TS 37.866 3GPP TR 37.866 R99
TS 37.872 vf10 Technical Report on SUL & LTE-NR DC with SUL Rel-15
TS 37.898 vj00 Rel-19 HPUE for EN-DC Band Combinations Rel-19
TR 37.910 vj00 5G SRIT and NR RIT Self-Evaluation Report Rel-19
TR 37.911 vj00 3GPP 5G NTN Self-Evaluation Report Rel-19
TS 38.101 vj31 NR User Equipment Radio Transmissions Rel-19
TS 38.104 vj20 NR Base Station RF Requirements Rel-19
TS 38.106 vj20 NR Repeater Radio Transmission and Reception Rel-19
TS 38.108 vj20 NTN NR Satellite Access Node RF Requirements Rel-19
TS 38.115 vj20 NR Repeater RF Conformance Testing Part 1 Rel-19
TS 38.133 vj20 5G UE Radio Requirements for RRC_IDLE Mobility Rel-19
TS 38.141 vj20 NR Base Station RF Conformance Testing Part 1 Rel-19
TS 38.161 vj10 NR UE TRP and TRS Requirements for FR1 Rel-19
TS 38.174 vj10 NR Integrated Access and Backhaul Radio Spec Rel-19
TS 38.176 vj20 IAB Conformance Testing Specification Rel-19
TS 38.181 vj10 NR Satellite Access Node RF Testing Rel-19
TS 38.191 vj00 NR Ambient IoT RF Characteristics Rel-19
TS 38.194 vj00 Ambient IoT Base Station RF Spec Rel-19
TS 38.213 vj10 NR Physical Layer Control Procedures Rel-19
TS 38.300 vj00 NG-RAN Overall Description Rel-19
TS 38.331 vj00 NR Radio Resource Control (RRC) Protocol Specification Rel-19
TS 38.508 vj11 5G NR UE Radio Transmission & Reception Rel-19
TS 38.521 vj20 NR Physical Layer UE Conformance Testing Rel-19
TS 38.522 vj11 UE Conformance Test Applicability Statement Rel-19
TS 38.523 vj20 5G NR UE Conformance Testing: Idle/Inactive Rel-19
TS 38.551 vi30 User Equipment (UE) Multiple Input Multiple Output (MIMO) Over-the-Air (OTA) performance Rel-18
TS 38.716 3GPP TR 38.716 R99
TS 38.717 3GPP TR 38.717 R99
TS 38.718 3GPP TR 38.718 R99
TS 38.719 vj00 Rel-19 NR SUL Configurations and CA Band Combinations Rel-19
TS 38.741 vj00 NTN L-/S-band for NR Technical Specification Rel-19
TS 38.746 vj00 High Power UE for NR Inter-band CA/DC Rel-19
TS 38.750 vj00 High Power UE for NR Inter-band CA/DC Rel-19
TS 38.755 vj10 NR FR1 DL Fragmented Carriers Study Rel-19
TS 38.774 vj00 Rel-19 LP-WUS/WUR RF Requirements TR Rel-19
TR 38.785 vh00 UE radio transmission for enhanced NR sidelink Rel-17
TR 38.786 vi20 Technical Report for NR Sidelink Evolution Rel-18
TS 38.787 vj00 UE Radio Transmission for Sidelink CA in ITS Band Rel-19
TS 38.792 vj00 UE RF Requirements for PC1.5 Inter-band UL CA/DC Rel-19
TS 38.793 vj00 Simultaneous Rx/Tx Band Combinations TR Rel-19
TR 38.808 vh00 Study on NR above 52.6 GHz to 71 GHz Rel-17
TS 38.811 vf40 Study on NR Support for Non-Terrestrial Networks Rel-15
TR 38.814 vf00 NR 4.4-5.0 GHz Band Technical Report Rel-15
TR 38.815 vf10 NR Frequency Range 24.25-29.5 GHz Study Rel-15
TS 38.817 3GPP TR 38.817 R99
TR 38.820 vg10 NR; 7-24 GHz Frequency Range Study Rel-16
TR 38.825 vg00 Study on NR Industrial IoT Rel-16
TR 38.830 vh00 NR Coverage Enhancements Study Rel-17
TS 38.831 vg10 UE RF Requirements for FR2 Enhancements Rel-16
TR 38.833 vh00 NR Demodulation Performance Enhancement Rel-17
TR 38.839 vh00 Simultaneous Rx/Tx band combinations Rel-17
TR 38.841 vh00 High power UE for NR inter-band CA Rel-17
TR 38.842 vh00 High Power UE for NR CA with Multiple Bands Rel-17
TR 38.846 vi10 Technical Report Rel-18
TR 38.847 vh20 NR 47.2-48.2 GHz Frequency Range Rel-17
TR 38.849 vi50 Technical Report Rel-18
TR 38.852 vh50 1900MHz NR band for European Rail Mobile Radio Rel-17
TR 38.853 vh50 900MHz NR Band for European Rail Mobile Radio Rel-17
TS 38.863 vj10 NR NTN RF and Co-existence Spec Rel-19
TR 38.868 vh00 Optimizations of pi/2 BPSK uplink power in NR Rel-17
TS 38.870 vj20 Enhanced OTA Test Methods for NR FR1 TRP/TRS Rel-19
TS 38.873 vg00 NR Band n48 Technical Report Rel-16
TR 38.877 vi10 Technical Report Rel-18
TR 38.878 vi40 Technical Report on Advanced Receiver for MU-MIMO Rel-18
TR 38.880 vi00 Technical Report for 3Tx inter-band UL CA and EN-DC Rel-18
TR 38.881 vi00 Technical Report on Lower MSD for Inter-band CA/EN-DC/DC Rel-18
TR 38.886 vg30 NR V2X UE Radio Transmission & Reception Rel-16
TS 38.887 vg00 NR Band n259 Specification (39.5-43.5 GHz) Rel-16
TR 38.889 vg00 NR-based access to unlicensed spectrum study Rel-16
TR 38.894 vi00 Technical Report Rel-18
TR 38.899 vi00 Technical Report for High Power UE Rel-18
TR 38.903 vj00 Test Tolerances & Measurement Uncertainties Rel-19
TR 38.921 vj00 IMT Parameters Study for 6.4-7.1 & 10-10.5 GHz Rel-19
TR 38.922 vj20 Study on IMT Parameters for NR in Higher Bands Rel-19
TS 51.010 vj00 SIM Application Toolkit Conformance Testing Rel-19