All
Multi-RAT
Multiple Radio Access Technologies
Rel-15 (2018)
Overview
Specifications spanning multiple radio access technologies and shared-spectrum functions.
Full technical content for Multi-RAT is coming soon. In the meantime, browse the related specifications below.
Specifications
TS 37.104
NR, E-UTRA, UTRA and GSM/EDGE; Multi-Standard Radio (MSR) Base Station (BS) radio transmission and reception
Architecture
Rel-15TSMulti-RATUpdated 2026-07-25
TS 37.105
Active Antenna System (AAS) Base Station (BS) transmission and reception
Architecture
Rel-15TSMulti-RATUpdated 2026-07-25
TS 37.106
User Equipment (UE) requirements for shared spectrum channel access
Architecture
Rel-15TSMulti-RATUpdated 2026-07-25
TS 37.107
Base Station (BS) requirements and conformance tests for shared spectrum channel access
Architecture
Rel-15TSMulti-RATUpdated 2026-07-25
TS 37.113
NR, E-UTRA, UTRA and GSM/EDGE; Multi-Standard Radio (MSR) Base Station (BS) Electromagnetic Compatibility (EMC)
Architecture
Rel-15TSMulti-RATUpdated 2026-07-25
TS 37.114
Active Antenna System (AAS) Base Station (BS) Electromagnetic Compatibility (EMC)
Architecture
Rel-15TSMulti-RATUpdated 2026-07-25
TS 37.141
NR, E-UTRA, UTRA and GSM/EDGE; Multi-Standard Radio (MSR) Base Station (BS) conformance testing
Architecture
Rel-15TSMulti-RATUpdated 2026-07-25
TS 37.144
User Equipment (UE) and Mobile Station (MS) GSM, UTRA and E-UTRA over the air performance requirements
Architecture
Rel-15TSMulti-RATUpdated 2026-07-25
TS 37.145-1
Active Antenna System (AAS) Base Station (BS) conformance testing; Part 1: conducted conformance testing
Architecture
Rel-15TSMulti-RATUpdated 2026-07-25
TS 37.145-2
Active Antenna System (AAS) Base Station (BS) conformance testing; Part 2: radiated conformance testing
Architecture
Rel-15TSMulti-RATUpdated 2026-07-25
TS 37.171
Universal Terrestrial Radio Access (UTRA) and Evolved UTRA (E-UTRA); User Equipment (UE) performance requirements for Radio Access Technology (RAT) Independent Positioning Enhancements
Architecture
Rel-15TSMulti-RATUpdated 2026-07-25
TS 37.213
Physical layer procedures for shared spectrum channel access
Physical Layer
Rel-15TSMulti-RATUpdated 2026-07-25
TS 37.320
Radio measurement collection for Minimization of Drive Tests (MDT); Overall description; Stage 2
Architecture
Rel-15TSMulti-RATUpdated 2026-07-25
TS 37.324
Evolved Universal Terrestrial Radio Access (E-UTRA) and NR; Service Data Adaptation Protocol (SDAP) specification
Architecture
Rel-15TSMulti-RATUpdated 2026-07-25
TS 37.340
Evolved Universal Terrestrial Radio Access (E-UTRA) and NR; Multi-connectivity; Overall Description; Stage-2
Architecture
Rel-15TSMulti-RATUpdated 2026-07-25
TS 37.355
LTE Positioning Protocol (LPP)
Architecture
Rel-15TSMulti-RATUpdated 2026-07-25
TS 37.460
Iuant interface: General aspects and principles
Architecture
Rel-15TSMulti-RATUpdated 2026-07-25
TS 37.461
Iuant interface: Layer 1
Architecture
Rel-15TSMulti-RATUpdated 2026-07-25
TS 37.462
Iuant interface: Signalling transport
Architecture
Rel-15TSMulti-RATUpdated 2026-07-25
TS 37.466
Iuant interface: Application part
Architecture
Rel-15TSMulti-RATUpdated 2026-07-25
TS 37.470
W1 interface; General aspects and principles
Architecture
Rel-16TSMulti-RATUpdated 2026-07-25
TS 37.471
W1 interface; Layer 1
Architecture
Rel-16TSMulti-RATUpdated 2026-07-25
TS 37.472
W1 interface; Signalling transport
Architecture
Rel-16TSMulti-RATUpdated 2026-07-25
TS 37.473
W1 interface; Application Protocol (W1AP)
Protocol
Rel-16TSMulti-RATUpdated 2026-07-25
TS 37.480
E1 general aspects and principles
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.481
E1 layer 1
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.482
E1 signalling transport
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.483
E1 Application Protocol (E1AP)
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.544
Universal Terrestrial Radio Access (UTRA) and Evolved UTRA (E-UTRA); User Equipment (UE) Over The Air (OTA) performance; Conformance testing
Architecture
Rel-15TSMulti-RATUpdated 2026-07-25
TS 37.571-1
User Equipment (UE) conformance specification for UE positioning; Part 1: Conformance test specification
Architecture
Rel-15TSMulti-RATUpdated 2026-07-25
TS 37.571-2
User Equipment (UE) conformance specification for UE positioning; Part 2: Protocol conformance
Architecture
Rel-15TSMulti-RATUpdated 2026-07-25
TS 37.571-3
User Equipment (UE) conformance specification for UE positioning; Part 3: Implementation Conformance Statement (ICS)
Architecture
Rel-15TSMulti-RATUpdated 2026-07-25
TS 37.571-4
User Equipment (UE) conformance specification for UE positioning; Part 4: Test suites
Architecture
Rel-15TSMulti-RATUpdated 2026-07-25
TS 37.571-5
User Equipment (UE) conformance specification for UE positioning; Part 5: Test scenarios and assistance data
Architecture
Rel-15TSMulti-RATUpdated 2026-07-25
TS 37.579-1
Mission Critical (MC) services; Part 1: Common test environment
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.579-2
Mission Critical (MC) services; Part 2: Mission Critical Push To Talk (MCPTT) User Equipment (UE) Protocol conformance specification
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.579-4
Mission Critical (MC) services; Part 4: Test Applicability and Implementation Conformance Statement (ICS) proforma specification
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.579-5
Mission Critical (MC) services; Part 5: Abstract test suite (ATS)
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.579-6
Mission Critical (MC) services; Part 6: Mission Critical Video (MCVideo) User Equipment (UE) Protocol conformance specification
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.579-7
Mission Critical (MC) services; Part 7: Mission Critical Data (MCData) User Equipment (UE) Protocol conformance specification
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.716-33
E-UTRA (Evolved Universal Terrestrial Radio Access) - NR Dual Connectivity (EN-DC) of 3 bands Down Link (DL) and 3 band Up Link (UL)
Architecture
Rel-16TSMulti-RATUpdated 2026-07-25
TS 37.717-33
Rel-17 Dual Connectivity (DC) of x bands (x=1,2) LTE inter-band CA (xDL/xUL) and y bands (y=3-x) NR inter-band CA (yDL/yUL)
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.815
Study on high power User Equipment (UE) (power class 2) for E-UTRA (Evolved Universal Terrestrial Radio Access) - NR Dual Connectivity (EN-DC) (1 LTE FDD band + 1 NR TDD band)
Architecture
Rel-16TSMulti-RATUpdated 2026-07-25
TS 37.816
Study on RAN-centric data collection and utilization for LTE and NR
Architecture
Rel-16TSMulti-RATUpdated 2026-07-25
TS 37.817
Study on enhancement for data collection for NR and ENDC
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.823
Coexistence between LTE-MTC and NR
Architecture
Rel-16TSMulti-RATUpdated 2026-07-25
TS 37.824
Coexistence between NB-IoT and NR
Architecture
Rel-16TSMulti-RATUpdated 2026-07-25
TS 37.825
High power User Equipment (UE) (power class 2) for E-UTRA (Evolved Universal Terrestrial Radio Access) - NR Dual Connectivity (EN-DC) (1 LTE TDD band + 1 NR TDD band)
Architecture
Rel-16TSMulti-RATUpdated 2026-07-25
TS 37.826
High power UE (power class 2) for EN-DC with 1 LTE band + 1 NR TDD band
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.827
Rel-17 Power Class 2 for EN-DC with xLTE band + yNR DL with 1LTE+1(TDD) NR UL band (x= 2, 3, y=1; x=1, 2, y=2)
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25