Description
The Universal Mobile Telecommunications System (UMTS) is the third-generation (3G) mobile communication system standardized by 3GPP. Its architecture is divided into the Core Network (CN), the UMTS Terrestrial Radio Access Network (UTRAN), and the User Equipment (UE). The UTRAN, the most significant innovation, consists of Node Bs (base stations) and Radio Network Controllers (RNCs). The air interface uses Wideband Code Division Multiple Access (WCDMA) with a 5 MHz channel bandwidth, a fundamental shift from the TDMA/FDMA of GSM. This provides higher spectral efficiency and supports variable data rates up to 2 Mbps in its initial releases. The core network initially evolved from the GSM/GPRS core, comprising circuit-switched (MSC/VLR) and packet-switched (SGSN/GGSN) domains to handle both voice and data traffic. The system operates on new frequency bands, notably around 2 GHz, and introduced new protocols like the Radio Resource Control (RRC) for robust mobility management. A key technical feature is the use of orthogonal variable spreading factor (OVSF) codes for channelization and scrambling codes for cell and user separation, enabling simultaneous voice and data sessions. The lub interface between Node B and RNC and the Iu interface between RNC and CN were standardized to ensure multi-vendor interoperability. UMTS also mandated quality of service (QoS) management from the start, with four defined traffic classes: conversational, streaming, interactive, and background, to optimize network resources for different application needs.
Purpose & Motivation
UMTS was created to address the limitations of 2G systems like GSM, which were primarily optimized for voice and offered only limited, circuit-switched data capabilities (e.g., HSCSD). The driving force was the burgeoning demand for mobile internet access and multimedia services, such as video telephony, mobile TV, and high-speed web browsing. The goal was to provide a global standard for 3G that offered significantly higher data rates, improved spectral efficiency, and better support for a mix of traffic types with guaranteed quality of service. It aimed to create a seamless evolution path from GSM networks, allowing operators to reuse core network infrastructure while deploying a new, more capable radio access network. The choice of WCDMA as the radio technology was pivotal, as it offered advantages in capacity, handover performance, and coverage in dense urban environments compared to narrowband TDMA. UMTS laid the groundwork for the mobile broadband revolution, enabling the always-on data connectivity that later evolved through HSPA and LTE.
Classification
Detected Changes Across Releases
from 3GPP Change RequestsSpecific changes extracted from the „Change history“ tables of 3GPP specifications (21 CRs across 5 releases). Complements the general historical overview above with the evidence-based evolution of this function.
In Release 15, the primary new introduction for the UMTS function was support for a simplified HS-SCCH (High-Speed Shared Control Channel). This update, detailed in the listed Change Requests, provided enhancements to the UTRAN (UMTS Terrestrial Radio Access Network) to streamline control signaling procedures. The release also included an update to add the attribute `peeParametersList` to the UTRAN Network Resource Model (NRM) for improved management.
- Support on a simplified HS-SCCH for UMTS TS 25.423CR1901
- Support on a simplified HS-SCCH for UMTS TS 25.433CR2095
- Add attribute peeParametersList to UTRAN NRM SS TS 28.653CR0018
- Update E-UTRAN SS definitions to support ng-eNB management TS 28.659CR0025
- Introduction of increased number of E-UTRAN data bearers TS 36.306CR1613
- Secondary Rat information Stage 3 in annex B9 (case of EN-DC: E-UTRAN and NR Dual Connectivity) TS 33.108CR0410
+ 2 more changes
In Release 16, the enhancements for UMTS functions focused on refining mobility and access control within the E-UTRAN. Specifically, new procedures were introduced for "even further mobility enhancement" and for the propagation of "Roaming and Access Restriction information" in non-homogeneous eNB deployments. These updates built upon the foundational UMTS security and architectural principles, including threat analyses against masquerading and service hijacking, to improve network reliability and user access management.
In Release 17, enhancements were made for UMTS (UTRAN) and GERAN networks, specifically introducing new user location information procedures for these legacy systems. Additionally, the Charging Function (CHF) was updated with CDR enhancements to better support GERAN and UTRAN access. The release also defined signaling for UE Security Capabilities within the E-UTRAN context.
In Release 18, the specific new development for UMTS was the introduction of enhanced protection mechanisms against improper reselection to GERAN and UTRAN networks. This change addressed security threats related to active attacks, such as a malicious base station forcing a UE to camp on it to hijack services. The update focused on securing the mobility procedures between 3GPP radio access technologies.
In Release 19, the UMTS function introduced new mobility and capability procedures for Non-Terrestrial Networks (NTN), specifically enabling redirection from terrestrial E-UTRAN to NB-IoT NTN. It added the UE capability for E-UTRAN to NB-IoT NTN mobility and introduced the indication of a supported NB-IoT NTN band list within the E-UTRAN system. These enhancements focused on integrating satellite-based NB-IoT access into the existing terrestrial mobility framework.
- Introduction of NB-IoT satellite information in E-UTRAN [EUTRAN-to-NBIoTNTN] TS 36.300CR1427
- Introduction of E-UTRAN to NB-IoT NTN Mobility UE Capability [EUTRAN-to-NBIoTNTN] TS 36.306CR1917
- Correction for the redirection from E-UTRAN TN to NB-IoT NTN [IoT_TN_NTN_redir] TS 36.306CR1933
- Indication of supported NB-IoT NTN band list in E-UTRAN [IoT_TN_NTN_redir] TS 36.306CR1937
Explore further
Broader topics and technologies where UMTS plays a role.
Defining Specifications
3GPP specifications that define or reference UMTS, with the latest known release. Sourced from the 3GPP document catalog — see methodology.
| Specification | Title | Release |
|---|---|---|
| TS 21.133 v1400 | 3G Security Requirements | Rel-5 |
| TR 21.905 vj00 | 3GPP Technical Terms and Definitions | Rel-19 |
| TS 22.100 v1320 | UMTS Service Requirements Phase 1 | Rel-4 |
| TS 22.101 vk00 | Service Principles for PLMNs | Rel-20 |
| TS 22.105 vj00 | Telecommunication Services Framework | Rel-19 |
| TS 22.226 vj00 | Global Text Telephony (GTT) Stage 1 | Rel-19 |
| TR 22.907 v1312 | UMTS IC Card and Terminal Concepts | Rel-4 |
| TR 22.945 v1300 | Fax Services Guidance for GSM/UMTS | Rel-4 |
| TR 22.975 v1310 | UMTS Numbering and Addressing Requirements | Rel-4 |
| TS 23.057 vj00 | Mobile Execution Environment (MExE) Specification | Rel-19 |
| TS 23.107 vj00 | UMTS QoS Framework | Rel-19 |
| TS 23.110 vj00 | Access Stratum Services Specification | Rel-19 |
| TS 23.171 v1300 | LCS Stage 2 Specification for UMTS | Rel-4 |
| TS 23.207 vj00 | End-to-End QoS Framework for GPRS | Rel-19 |
| TS 23.221 vj00 | 3GPP System Architectural Requirements | Rel-19 |
| TS 23.226 vj00 | Global Text Telephony (GTT) Stage 2 | Rel-19 |
| TS 23.228 vj50 | IMS Stage-2 Service Description | Rel-19 |
| TS 23.234 vd10 | 3GPP-WLAN Interworking Index | Rel-13 |
| TS 23.271 vj00 | LCS Stage 2 Specification | Rel-19 |
| TS 23.804 v1700 | SMS/MMS over IP Access Support | Rel-7 |
| TR 23.979 vj00 | PoC over 3GPP Systems Architectural Requirements | Rel-19 |
| TS 24.228 v1500 | IP Multimedia Call Control Signaling Flows | Rel-5 |
| TS 25.106 vj00 | UTRA FDD Repeater RF Performance Requirements | Rel-19 |
| TS 25.143 vj00 | UTRA FDD Repeater RF Test Requirements | Rel-19 |
| TS 25.153 vj00 | LCR TDD Repeater RF Requirements & Testing | Rel-19 |
| TS 25.201 vj00 | UTRA Physical Layer General Description | Rel-19 |
| TS 25.221 vj00 | UTRA TDD Physical Layer Specification | Rel-19 |
| TS 25.222 vj00 | UTRA TDD Multiplexing & Channel Coding | Rel-19 |
| TS 25.224 vj00 | UTRA TDD Physical Layer Procedures | Rel-19 |
| TS 25.225 vj00 | UTRA TDD Physical Layer Measurements | Rel-19 |
| TS 25.301 vj00 | UE-UTRAN Radio Interface Protocol Architecture | Rel-19 |
| TS 25.302 vj00 | UTRA Physical Layer Services | Rel-19 |
| TS 25.304 vj00 | UTRA Idle Mode Procedures Specification | Rel-19 |
| TS 25.305 vj00 | UTRAN UE Positioning Stage 2 | Rel-19 |
| TS 25.306 vj00 | UE Radio Access Capabilities Specification | Rel-19 |
| TS 25.321 vj00 | MAC Protocol Specification for UTRAN | Rel-19 |
| TS 25.322 vj00 | RLC Protocol Specification | Rel-19 |
| TS 25.323 vj00 | Packet Data Convergence Protocol (PDCP) Specification | Rel-19 |
| TS 25.331 vj00 | UTRAN RRC Protocol Specification | Rel-19 |
| TS 25.367 vj00 | Home NodeB Mobility Procedures | Rel-19 |
| TS 25.401 vj00 | UTRAN Overall Architecture | Rel-19 |
| TS 25.402 vj00 | UTRAN Synchronisation Mechanisms | Rel-19 |
| TS 25.413 vj00 | Radio Access Network Application Part (RANAP) | Rel-19 |
| TS 25.420 vj00 | Iur Interface Introduction for UTRAN | Rel-19 |
| TS 25.423 vj00 | UTRAN RNSAP Specification | Rel-19 |
| TS 25.430 vj00 | Introduction to Iub Interface Specifications | Rel-19 |
| TS 25.433 vj00 | Node B Application Part (NBAP) Protocol | Rel-19 |
| TS 25.434 vj00 | UTRAN Iub Interface Data Transport and Signalling | Rel-19 |
| TS 25.450 vj00 | Iupc Interface Introduction for UTRAN Positioning | Rel-19 |
| TS 25.452 vj00 | Iupc Interface Signalling Transport for PCAP | Rel-19 |
| TS 25.874 vb00 | HSPA Feedback & Signalling Efficiency for LCR TDD | Rel-11 |
| TR 25.912 vj00 | Evolved UTRA and UTRAN Technical Report | Rel-19 |
| TR 25.914 vj00 | 3G UE Radio Performance Test Methods | Rel-19 |
| TR 25.931 vj00 | UTRAN Signalling Procedures Examples | Rel-19 |
| TR 25.943 vj00 | Channel Models for Deployment Evaluation | Rel-19 |
| TS 26.103 vj00 | 3GPP Codec Lists for OoBTC and TrFO | Rel-19 |
| TS 26.131 vj00 | Terminal Acoustic Performance Requirements | Rel-19 |
| TS 26.132 vj00 | Terminal Acoustic Test Methods | Rel-19 |
| TS 26.226 vj00 | Cellular Text Telephone Modem (CTM) | Rel-19 |
| TS 26.267 vj00 | eCall In-band Modem Specification | Rel-19 |
| TS 26.269 vj00 | eCall In-band Modem Conformance Testing | Rel-19 |
| TS 26.804 vj10 | 5G Media Streaming Extensions Study | Rel-19 |
| TR 26.862 vh00 | Immersive Teleconferencing & Telepresence for Remote Terminals | Rel-17 |
| TR 26.952 vj00 | EVS Codec Selection, Verification & Characterization | Rel-19 |
| TR 26.962 vj00 | ITT4RT Operation and Usage Guidelines | Rel-19 |
| TR 26.976 vj00 | AMR-WB Codec Characterization & Verification | Rel-19 |
| TS 28.606 vc10 | CN and non-3GPP interworking NRM IRP Solution Sets | Rel-12 |
| TS 28.616 vj00 | EPC and non-3GPP access NRM IRP SS definitions | Rel-19 |
| TS 28.621 vj00 | Generic Network Resource Model (NRM) IRP Requirements | Rel-19 |
| TS 28.626 vj00 | State Management Data Definition IRP Solution Set | Rel-19 |
| TS 28.632 vj00 | Inventory Management NRM Integration Reference Point | Rel-19 |
| TS 28.651 vj00 | UTRAN Network Resource Model Requirements | Rel-19 |
| TS 28.653 vj00 | UTRAN NRM IRP Solution Set Definition | Rel-19 |
| TS 28.654 vj00 | GERAN NRM IRP Requirements | Rel-19 |
| TS 28.656 vj00 | GERAN NRM IRP Solution Set Definitions | Rel-19 |
| TS 28.659 vj00 | E-UTRAN NRM IRP Solution Set Definitions | Rel-19 |
| TS 28.663 vj00 | Generic RAN NRM IRP Solution Set Definitions | Rel-19 |
| TS 28.702 vj00 | Core Network NRM IRP Information Service | Rel-19 |
| TS 28.703 vj00 | Core Network NRM IRP Solution Set Definitions | Rel-19 |
| TS 28.705 vj00 | IMS NRM IRP Information Service | Rel-19 |
| TS 28.706 vj00 | IMS NRM IRP Solution Set definitions | Rel-19 |
| TS 28.733 vj00 | TN NRM IRP Solution Set Definitions | Rel-19 |
| TS 28.734 vj00 | STN Interface NRM IRP Requirements | Rel-19 |
| TS 28.736 vj00 | STN Interface NRM IRP Solution Set Definitions | Rel-19 |
| TR 31.900 vj00 | 3GPP TS 31.900: Security Interworking Guidance | Rel-19 |
| TS 32.240 vj40 | Charging Management Architecture & Principles | Rel-19 |
| TS 32.250 vj00 | Circuit Switched Offline Charging | Rel-19 |
| TS 32.251 vj00 | PS Domain Charging Management | Rel-19 |
| TS 32.252 vc00 | 3GPP WLAN Interworking Charging | Rel-12 |
| TS 32.270 vj00 | MMS Charging Management Specification | Rel-19 |
| TS 32.271 vj20 | 3GPP LCS Charging Management Spec | Rel-19 |
| TS 32.272 vj00 | Charging for Push-to-Talk over Cellular (PoC) | Rel-19 |
| TS 32.276 vj00 | VCS Online Charging from Proxy Function | Rel-19 |
| TS 32.277 vj20 | Charging Management for Proximity Services (ProSe) | Rel-19 |
| TS 32.278 vj00 | Monitoring Events Offline Charging Specification | Rel-19 |
| TS 32.293 vj00 | Proxy Function in Domestic Service Provider | Rel-19 |
| TS 32.298 vj30 | Charging Data Record (CDR) Parameter Specification | Rel-19 |
| TS 32.301 vj00 | Notification IRP Requirements | Rel-19 |
| TS 32.371 vj00 | Security Management Concept & Requirements | Rel-19 |
| TS 32.372 vj00 | Security Service for IRP Information Service | Rel-19 |
| TS 32.401 vj00 | Performance Management Concept & Requirements | Rel-19 |
| TS 32.404 vj00 | Performance Management Definitions & Template | Rel-19 |
| TS 32.405 vj00 | UTRAN Performance Measurements Specification | Rel-19 |
| TS 32.406 vj00 | Performance Management for CN PS Domain | Rel-19 |
| TS 32.407 vj00 | PM; CN CS Domain; UMTS/GSM measurements | Rel-19 |
| TS 32.409 vj00 | IMS Performance Management Measurements | Rel-19 |
| TS 32.410 vj00 | 3GPP TS 32.410: Key Performance Indicators (KPI) | Rel-19 |
| TS 32.426 vj00 | EPC Performance Measurements Specification | Rel-19 |
| TS 32.450 vj00 | E-UTRAN Key Performance Indicators (KPI) Definitions | Rel-19 |
| TS 32.451 vj00 | KPI Requirements for E-UTRAN | Rel-19 |
| TS 32.452 vj00 | PM Measurements for Home Node B Subsystem | Rel-19 |
| TS 32.453 vj00 | PM for Home eNodeB Subsystem (HeNS) | Rel-19 |
| TS 32.582 vj00 | HNB Management Information Model for Type 1 Interface | Rel-19 |
| TS 32.584 vj00 | HNB OAM&P XML Definitions for Type 1 Interface | Rel-19 |
| TS 32.592 vj00 | HeNB OAM&P Information Model | Rel-19 |
| TS 32.594 vj00 | Data definitions for HeNB to HeMS Type 1 interface | Rel-19 |
| TS 32.600 vj00 | 3GPP Configuration Management Specification | Rel-19 |
| TS 32.601 vj00 | Basic Configuration Management IRP Requirements | Rel-19 |
| TS 32.602 vj00 | Basic Configuration Management IRP Information Service | Rel-19 |
| TS 32.611 vj00 | Bulk CM IRP Requirements | Rel-19 |
| TS 32.615 v1920 | Bulk CM XML File Format Definition | Rel-9 |
| TS 32.616 vj00 | Bulk CM IRP Solution Set Definitions | Rel-19 |
| TS 32.621 vb00 | Generic Network Resources IRP Requirements | Rel-11 |
| TS 32.622 vb10 | Generic Network Resources IRP NRM | Rel-11 |
| TS 32.625 v1900 | Bulk CM XML File Format Definition | Rel-9 |
| TS 32.626 vb20 | Generic Network Resources IRP Solution Set Definitions | Rel-11 |
| TS 32.632 vb00 | Core Network Resources IRP: Network Resource Model | Rel-11 |
| TS 32.635 v1910 | Core Network Resources IRP XML Schema | Rel-9 |
| TS 32.636 vb00 | CM Core Network Resources IRP Solution Set | Rel-11 |
| TS 32.641 vb00 | UTRAN Network Resources IRP Requirements | Rel-11 |
| TS 32.642 vb50 | UTRAN Network Resource Model for Configuration Management | Rel-11 |
| TS 32.645 v930 | UTRAN Bulk CM XML File Format | Rel-9 |
| TS 32.646 vc00 | UTRAN NRM IRP Solution Set Definitions | Rel-12 |
| TS 32.651 vb00 | GERAN Network Resources CM IRP Requirements | Rel-11 |
| TS 32.655 v920 | GERAN NRM Bulk CM XML File Format | Rel-9 |
| TS 32.656 vc00 | GERAN NRM IRP Solution Set Definitions | Rel-12 |
| TS 32.661 vj00 | Kernel Configuration Management IRP Requirements | Rel-19 |
| TS 32.662 vj00 | Configuration Management (CM); Kernel CM IRP | Rel-19 |
| TS 32.675 v1900 | State Management IRP Bulk CM XML Format | Rel-9 |
| TS 32.676 vc00 | 3GPP TS 32.676: State Management IRP Solution Set | Rel-12 |
| TS 32.690 vj00 | Inventory Management IRP Requirements | Rel-19 |
| TS 32.691 vb00 | Inventory Management IRP Requirements | Rel-11 |
| TS 32.692 vb00 | Inventory Management NRM IRP Specification | Rel-11 |
| TS 32.711 vb00 | TN Interface NRM IRP Requirements | Rel-11 |
| TS 32.712 vb10 | Transport Network Interface NRM for CM | Rel-11 |
| TS 32.715 v900 | TN interface NRM IRP XML file format definition | Rel-9 |
| TS 32.716 vb00 | TN NRM IRP Solution Set Definitions | Rel-11 |
| TS 32.721 vb00 | Repeater Network Resources IRP Requirements | Rel-11 |
| TS 32.722 vb00 | Repeater NRM IRP: Network Resource Model | Rel-11 |
| TS 32.725 v1900 | Repeater Network Resources IRP Bulk CM XML | Rel-9 |
| TS 32.726 vb00 | Repeater NRM IRP Solution Set Definitions | Rel-11 |
| TS 32.732 vb00 | IMS Network Resource Model IRP: Information Service | Rel-11 |
| TS 32.735 v1910 | IMS NRM IRP Bulk CM XML Format | Rel-9 |
| TS 32.736 vb00 | IMS NRM IRP Solution Set Definitions | Rel-11 |
| TS 32.741 vb00 | STN Interface NRM IRP Requirements | Rel-11 |
| TS 32.745 v900 | STN NRM IRP XML File Format Definition | Rel-9 |
| TS 32.746 vb00 | STN NRM IRP Solution Set Definitions | Rel-11 |
| TS 32.765 v960 | E-UTRAN NRM IRP XML Definitions | Rel-9 |
| TS 32.766 vb90 | E-UTRAN NRM IRP Solution Set Definitions | Rel-11 |
| TS 32.796 vc00 | Generic RAN NRM IRP Solution Set Definitions | Rel-12 |
| TS 32.808 v1800 | Common User Profile Storage Framework | Rel-8 |
| TS 32.816 v800 | UMTS Management Reuse for E-UTRAN/EPC | Rel-8 |
| TS 32.821 v1900 | SON OAM Architecture for Home NodeB | Rel-9 |
| TS 32.826 va00 | Study on Energy Savings Management in LTE/SAE Networks | Rel-10 |
| TS 32.849 vd00 | IMS Roaming Charging Study | Rel-13 |
| TS 32.850 ve00 | IMS Charging Correlation Methods Study | Rel-14 |
| TS 33.107 vj00 | Lawful Interception Architecture & Functions | Rel-19 |
| TS 33.108 vj00 | LI Handover Interface Specification | Rel-19 |
| TS 33.320 vj00 | H(e)NB Subsystem Security Architecture | Rel-19 |
| TS 33.401 vj10 | EPS Security Architecture | Rel-19 |
| TS 33.835 vg10 | Study on authentication and key management for apps | Rel-16 |
| TS 33.856 vg10 | Security for 5G to 3G Voice Continuity | Rel-16 |
| TS 33.859 vb10 | UTRAN Key Hierarchy Enhancement Study | Rel-11 |
| TS 33.863 ve20 | Security for Battery-Efficient IoT Device to Enterprise | Rel-14 |
| TS 34.114 vc20 | Radiated Performance Test Procedure for UE/MS | Rel-12 |
| TS 34.124 vj00 | EMC Requirements for 3G UTRA Terminals | Rel-19 |
| TS 35.205 vj00 | MILENAGE Algorithm Set: General Overview | Rel-19 |
| TR 35.909 vj00 | 3GPP MILENAGE Algorithm Design Report | Rel-19 |
| TS 36.101 vj30 | LTE UE Radio Transmission & Reception Requirements | Rel-19 |
| TS 36.102 vj10 | E-UTRA UE Satellite Access RF Requirements | Rel-19 |
| TS 36.116 vj00 | E-UTRA Relay RF Requirements | Rel-19 |
| TS 36.117 vj00 | E-UTRA Relay RF Test Methods & Requirements | Rel-19 |
| TS 36.124 vj00 | EMC for E-UTRA User Equipment | Rel-19 |
| TS 36.133 vj20 | E-UTRA RRM Requirements | Rel-19 |
| TS 36.141 vj00 | E-UTRA BS Conformance Testing | Rel-19 |
| TS 36.300 vj00 | E-UTRAN Radio Interface Protocol Architecture Overview | Rel-19 |
| TS 36.302 vj00 | E-UTRA Physical Layer Services | Rel-19 |
| TS 36.304 vj00 | UE Idle Mode Procedures in E-UTRA | Rel-19 |
| TS 36.306 vj00 | E-UTRA UE Radio Access Capability Parameters | Rel-19 |
| TS 36.401 vj00 | E-UTRAN Overall Architecture Description | Rel-19 |
| TS 36.521 vj00 | E-UTRA UE Conformance ICS Proforma | Rel-19 |
| TS 36.744 ve00 | CBRS 3.5GHz Band Specification for US | Rel-14 |
| TS 36.755 vf00 | US 600 MHz LTE Band 71 Technical Report | Rel-15 |
| TS 36.855 vd00 | E-UTRA Positioning Enhancements Study | Rel-13 |
| TR 36.927 vj00 | Network Energy Saving for E-UTRAN | Rel-19 |
| TS 36.938 v900 | E-UTRAN to 3GPP2/Mobile WiMAX Mobility | Rel-9 |
| TS 37.320 vj00 | Minimization of Drive Tests (MDT) Overview | Rel-19 |
| TS 37.460 vj00 | Iuant Interface Introduction | Rel-19 |
| TS 37.461 vj00 | Iuant Interface Layer 1 Specification | Rel-19 |
| TS 37.544 vg70 | UE Radiated Performance Test Procedures | Rel-16 |
| TR 37.901 vf10 | UE Application Layer Data Throughput Performance | Rel-15 |
| TS 38.304 vj00 | UE RRC_IDLE and RRC_INACTIVE Procedures | Rel-19 |
| TS 38.873 vg00 | NR Band n48 Technical Report | Rel-16 |
| TR 38.892 vi00 | Technical Report | Rel-18 |
| TS 43.051 vj00 | GERAN Stage 2 Service Description | Rel-19 |
| TS 43.129 vj00 | PS Handover in GERAN A/Gb and GAN Modes | Rel-19 |
| TS 43.130 vj00 | Iur-g Interface Overview | Rel-19 |
| TS 43.318 vj00 | Generic Access Network (GAN) Stage 2 | Rel-19 |
| TR 43.902 vj00 | GAN Enhancements Feasibility Study | Rel-19 |
| TS 44.060 vj00 | GERAN RLC/MAC Protocol Specification | Rel-19 |
| TS 44.160 vg00 | GERAN Iu Mode RLC/MAC Protocol Specification | Rel-16 |
| TS 44.318 vj00 | Generic Access Network (GAN) Interface Procedures | Rel-19 |
| TR 45.913 vj00 | Optimized Transmit Pulse Shape for EGPRS2-B | Rel-19 |