Rel-18

Group 3 Facsimile Service in A/Gb Mode PLMN

Specifies procedures for Group 3 facsimile service in A/Gb mode PLMN using transparent network support, covering Teleser

NWDAF Services and APIs

Defines stage 3 service-based APIs for NWDAF analytics, data management, machine learning models, monitoring, and roamin

SIP Transfer of Tariff Information

Specifies real-time transfer of tariff info between CDP and CGP using SIP for IMS charging.

Session Management Policy Control Service Stage 3

Stage 3 specification for 5G Session Management Policy Control Service, defining protocols and procedures for policy and

Nb UP Protocol for CS Core Network

Specifies user plane protocol between Media Gateways in BICC-based CS core network, based on Iu UP protocol.

Radio Link Protocol (RLP) for Circuit Switched Data

Specifies RLP for circuit switched data transmission within a PLMN, covering Layer 2 functionality and protocol conversi

Ns Reference Point Protocol for Congestion Reporting

Defines Diameter-based protocol between SCEF and RCAF for RAN congestion status reporting, including one-time and contin

TE-MT Interworking for Packet Domain

Defines requirements for TE-MT interworking over R-reference point for GPRS/UMTS packet services, including protocols an

CS Bearer Services in UMTS

Defines circuit switched bearer services for UMTS, covering transparent/non-transparent data, bearer capabilities, and h

3GPP Release 18 Specifications Overview

Identifies all 3GPP system specifications for Release 18, providing the authoritative list of documents needed to implem

LTE Physical Layer Procedures

Defines LTE physical-layer procedures for synchronization, power control, channel operation, scheduling feedback, random

Rate Adaptation Functions for PLMN BSS

Defines rate adaptation functions for BSS transcoders and IWF to adapt radio interface data rates to 64 kbit/s A-interfa

Rate Adaptation for GSM/EDGE Mobile Stations

Defines rate adaptation functions for adapting terminal interface data rates to MS-BSS interface rates in GSM/EDGE netwo

F1 Application Protocol (F1AP)

Defines 5G F1 interface signalling between gNB-CU and gNB-DU, including UE, cell, mobility, transport, IAB, multicast, a

GERAN PLMN Connection Types

Defines PLMN connection types for GERAN, bridging service specifications and detailed network capabilities for GSM/3G ne

NR RF Coexistence for NTN

Defines RF and adjacent-channel coexistence considerations and generic requirements for 5G NR non-terrestrial networks,

NR NTN L-/S-Band Spectrum Study

Technical report defining the spectrum and regulatory basis for 5G NR non-terrestrial deployments using L-/S-band operat

Xn Application Protocol (XnAP)

Specifies radio network layer signalling procedures between NG-RAN nodes over Xn interface, supporting mobility, dual co

NR Positioning Protocol A (NRPPa)

Defines NRPPa signalling procedures between NG-RAN nodes and the LMF for 5G positioning information, measurements, assis

NG Application Protocol (NGAP)

Defines the NGAP signalling protocol for control-plane communication between NG-RAN nodes and the 5G Core AMF over the N

NR Radio Resource Control Protocol

Defines the 5G NR RRC protocol for UE and NG-RAN control, including connection management, mobility, measurements, radio

Sidelink Positioning Protocol (SLPP)

Specifies SLPP for sidelink positioning between UEs and UE-LMF, enabling ranging and location services.

NR MAC Protocol Specification

Specifies the NR Medium Access Control (MAC) protocol for 5G, covering key functions and procedures.

NR Physical Layer Data Channel Procedures

Defines 5G NR physical-layer procedures for PDSCH and PUSCH, including power control, resource allocation, modulation, c

Release Independent NR UE RF Requirements

Specifies release independent UE RF requirements for NR operating bands, power classes, CA configurations, and satellite

NR UE Radio Access Capabilities

Defines NR UE radio access capability parameters, including supported bands, data rates, MIMO, modulation, carrier aggre

NG-RAN UE Positioning Stage 2

Specifies NG-RAN UE positioning architecture, methods, and procedures to support location services in 5G networks.

NR and NG-RAN Overall Description

Defines the overall architecture, radio interface protocol stack, functions, and deployment principles of NR-based NG-RA

NR Physical Layer Measurements

Defines physical layer measurements for NR, including SS-RSRP, CSI-RSRP, SS-RSRQ, and measurement capabilities for UE an

NR Physical Channels and Signals

Defines 5G NR physical channels, reference signals, frame structure, numerologies, resource grids, and physical-layer si

NR Physical Layer Control Procedures

Defines 5G NR physical-layer control procedures for synchronization, downlink and uplink control, HARQ operation, random

NR Radio Resource Management Requirements

Defines 5G NR UE radio resource management measurement, mobility, positioning, and performance requirements across diver

NR SAN RF Conformance Testing

RF test methods and conformance requirements for NR Satellite Access Node types 1-H, 1-O, 2-O and NB-IoT in NTN.

NR Base Station Radiated Conformance Testing

Defines RF radiated test methods and conformance requirements for 5G NR base stations operating at FR1 and FR2.

NR FR1 Base Station RF Conformance Testing

Defines conducted RF test methods and conformance requirements for NR and NB-IoT in NR FR1 base stations, covering BS ty

NR Repeater Radiated Conformance Testing

Defines RF radiated test methods and conformance requirements for 5G NR type 2-O repeaters and network-controlled repeat

NR Repeater RF Conformance Testing

Defines conducted RF test methods and conformance requirements for NR repeater type 1-C and network-controlled repeaters

NR Repeater RF Requirements

Defines minimum RF characteristics for NR RF repeaters and network controlled repeaters across FR1 and FR2, including co

NR UE Performance Requirements: FR1 Demodulation & CSI

Defines NR UE conducted demodulation and CSI reporting performance requirements for FR1 (PDSCH, PDCCH, PBCH, CA, RedCap,

NR Base Station RF Requirements

Defines minimum RF characteristics and performance requirements for NR and NB-IoT in-band operation at 5G base stations,

NR UE Satellite Access RF Requirements

Defines minimum RF transmission, reception, and performance requirements for 5G NR UEs supporting satellite and NTN acce

NR UE Radio Interworking Requirements

Defines NR UE radio transmission and reception requirements for CA, DC, V2X, and interworking across FR1 and FR2.

NR UE Radio Transmission and Reception

Defines minimum RF transmission, reception, band, bandwidth, power, channel, and performance requirements for standalone

NR UE RF Requirements for FR2

Defines minimum RF transmission and reception requirements for NR user equipment operating in 5G Frequency Range 2, incl

MC Services TTCN-3 Conformance Testing

Specifies TTCN-3 test suites for protocol conformance of Mission Critical services (MCPTT, MCVideo, MCData) UE.

AAS BS Conducted Conformance Testing (Part 1)

Conducted test methods and conformance requirements for Active Antenna System base stations in E-UTRA, UTRA, NR and MSR

UE Conformance Specification for UE Positioning; Part 4: Test Suites

Specifies protocol and signalling conformance testing in TTCN for UE positioning, covering A-GPS, A-GNSS, LTE, and NR po

AAS BS Conformance Testing Part 2: Radiated

Radiated test methods and conformance requirements for Active Antenna System base stations (hybrid and OTA-only) coverin

RF Conformance Testing for Multi-Standard Base Stations

Specifies RF test methods and conformance requirements for NR, LTE, UTRA, GSM/EDGE, and NB-IoT MSR base stations.

AAS Base Station RF Requirements

Defines minimum RF and performance requirements for hybrid and OTA active antenna system base stations supporting E-UTRA