IMT-Advanced — LLMpedia

IMT-Advanced
Name	IMT-Advanced
Developer	International Telecommunication Union
Introduced	2008–2010
Predecessor	International Mobile Telecommunications-2000
Successor	4G technologies
Standard	3rd Generation Partnership Project

Contents

IMT-Advanced IMT-Advanced was the International Telecommunication Union initiative to define the fourth-generation mobile broadband target for global wireless systems, driven by stakeholders including International Telecommunication Union, 3rd Generation Partnership Project, European Telecommunications Standards Institute, Institute of Electrical and Electronics Engineers and industry players such as Qualcomm, Nokia, Ericsson, Samsung, Huawei. The initiative set ambitious peak data-rate, spectral-efficiency and mobility goals to guide development efforts across regions like Europe, United States, Japan, China and South Korea, influencing standards work at organizations including International Organization for Standardization and Alliance for Telecommunications Industry Solutions.

Overview

IMT-Advanced specified a set of technical targets and process milestones that coordinated research, development and commercialization efforts among entities such as National Institute of Standards and Technology, Fraunhofer Society, Télécom Paris, Bell Labs, Korea Advanced Institute of Science and Technology, Chinese Academy of Sciences and vendors like Motorola Solutions. The goals emphasized peak user experience, end-to-end system capacity and backward interoperability with systems from earlier forums such as 3GPP and 3GPP2, while aligning with regulatory priorities from bodies like the Federal Communications Commission, European Commission, Ministry of Internal Affairs and Communications (Japan), and national regulators in India and Brazil.

IMT-Advanced defined quantitative requirements for peak data rates (e.g., 1 Gbit/s for low mobility, 100 Mbit/s for high mobility), spectral efficiency metrics and latency figures that influenced work in 3rd Generation Partnership Project, IEEE 802.16 and research at institutions such as Massachusetts Institute of Technology, Stanford University, University of California, Berkeley, Tsinghua University and Universidade de São Paulo. The specification included support for multiple-input multiple-output techniques pioneered by teams at Bell Labs, Ericsson Research, Nokia Research Center, and algorithms researched at University of Cambridge, ETH Zurich, RWTH Aachen University and Seoul National University. IMT-Advanced targets addressed frequency duplexing modes referenced in standards like IEEE 802.11ac, IEEE 802.11ax, LTE Advanced, and modulation schemes developed at University of Erlangen–Nuremberg and KTH Royal Institute of Technology laboratories.

Key candidate technologies that vied to meet IMT-Advanced included LTE Advanced, IEEE 802.16m (often associated with WiMAX), various versions of multi-carrier and single-carrier schemes championed by Alcatel-Lucent, ZTE, Fujitsu, and research consortia at Nokia Bell Labs, Samsung Research, NEC Corporation and Panasonic. Proposals drew on techniques such as carrier aggregation, coordinated multipoint transmission drawn from projects at University of Tokyo, Osaka University, University of California, Los Angeles, and enhanced interference management studied at Imperial College London, KTH Royal Institute of Technology, Politecnico di Milano and Technische Universität München. Spectrum strategies referenced allocations from bodies like International Telecommunication Union-Radiocommunication Sector, European Conference of Postal and Telecommunications Administrations, and national spectrum programs in Australia, Canada, Russia and South Africa.

Commercial rollout paths for IMT-Advanced-aligned systems were executed by operators such as AT&T, Verizon Communications, Vodafone, China Mobile, NTT Docomo, SK Telecom, Deutsche Telekom and infrastructure vendors including Ericsson, Huawei, Nokia, ZTE and Samsung Electronics. Early network launches, trials and market introductions in markets like United States, South Korea, Japan, China and Europe were coordinated with device ecosystems from manufacturers like Apple Inc., Sony, LG Electronics and chipset suppliers such as Broadcom, MediaTek, Intel Corporation, Qualcomm. Commercial strategies involved roaming arrangements, interconnection agreements and investment plans influenced by case studies from Telefónica, Orange S.A., China Telecom and BT Group.

Field trials and performance evaluations for IMT-Advanced candidates were carried out in testbeds led by National Information Society Agency (NIA), ETSI, 3GPP, Global mobile Suppliers Association, and academic testbeds at University of Texas at Austin, University of Illinois Urbana-Champaign, Korea Advanced Institute of Science and Technology and University of Sydney. Trial results benchmarking throughput, latency and mobility performance compared implementations from Ericsson, Nokia, Huawei, Samsung and ZTE and were published in venues like IEEE Communications Magazine, IEEE Transactions on Wireless Communications, ACM SIGCOMM, and presented at conferences such as Mobile World Congress, IEEE ICC, IEEE GLOBECOM, EuCNC. Independent evaluations by organizations like Intertek, Rohde & Schwarz and national labs informed deployment planning by operators AT&T, Verizon Communications, Vodafone, China Mobile and regulators in Brazil and India.

The IMT-Advanced process was embedded within the International Telecommunication Union-Radiocommunication Sector agenda, coordinated with 3rd Generation Partnership Project, European Telecommunications Standards Institute, and national standards bodies including Telecommunication Standardization Bureau (ITU-T), American National Standards Institute, Chinese National Committee for ICT Standardization, Telecommunications Standards Development Society, India and Japan Telecommunication Technology Committee. Spectrum harmonization efforts involved regional forums such as Asia-Pacific Telecommunity, African Telecommunications Union, Inter-American Telecommunication Commission and policy inputs from agencies like Federal Communications Commission, Ofcom, Agence Nationale des Fréquences and Australian Communications and Media Authority. The framework led to technology neutral recommendations, contributions to regulatory decisions, and coordination with intellectual property policies of entities like European Patent Office, United States Patent and Trademark Office and licensing pools managed by consortia including MPEG LA and industry alliances such as Open Mobile Alliance.

Category:Mobile telecommunications standards