1、 Recommendation ITU-R M.2083-0 (09/2015) IMT Vision Framework and overall objectives of the future development of IMT for 2020 and beyond M Series Mobile, radiodetermination, amateur and related satellite services ii Rec. ITU-R M.2083-0 Foreword The role of the Radiocommunication Sector is to ensure
2、 the rational, equitable, efficient and economical use of the radio-frequency spectrum by all radiocommunication services, including satellite services, and carry out studies without limit of frequency range on the basis of which Recommendations are adopted. The regulatory and policy functions of th
3、e Radiocommunication Sector are performed by World and Regional Radiocommunication Conferences and Radiocommunication Assemblies supported by Study Groups. Policy on Intellectual Property Right (IPR) ITU-R policy on IPR is described in the Common Patent Policy for ITU-T/ITU-R/ISO/IEC referenced in A
4、nnex 1 of Resolution ITU-R 1. Forms to be used for the submission of patent statements and licensing declarations by patent holders are available from http:/www.itu.int/ITU-R/go/patents/en where the Guidelines for Implementation of the Common Patent Policy for ITU-T/ITU-R/ISO/IEC and the ITU-R paten
5、t information database can also be found. Series of ITU-R Recommendations (Also available online at http:/www.itu.int/publ/R-REC/en) Series Title BO Satellite delivery BR Recording for production, archival and play-out; film for television BS Broadcasting service (sound) BT Broadcasting service (tel
6、evision) F Fixed service M Mobile, radiodetermination, amateur and related satellite services P Radiowave propagation RA Radio astronomy RS Remote sensing systems S Fixed-satellite service SA Space applications and meteorology SF Frequency sharing and coordination between fixed-satellite and fixed s
7、ervice systems SM Spectrum management SNG Satellite news gathering TF Time signals and frequency standards emissions V Vocabulary and related subjects Note: This ITU-R Recommendation was approved in English under the procedure detailed in Resolution ITU-R 1. Electronic Publication Geneva, 2015 ITU 2
8、015 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without written permission of ITU. Rec. ITU-R M.2083-0 1 RECOMMENDATION ITU-R M.2083-0 IMT Vision Framework and overall objectives of the future development of IMT for 2020 and beyond (2015) Scope This R
9、ecommendation defines the framework and overall objectives of the future development of International Mobile Telecommunications (IMT) for 2020 and beyond in light of the roles that IMT could play to better serve the needs of the networked society, for both developed and developing countries, in the
10、future. In this Recommendation, the framework of the future development of IMT for 2020 and beyond, including a broad variety of capabilities associated with envisaged usage scenarios, is described in detail. Furthermore, this Recommendation addresses the objectives of the future development of IMT
11、for 2020 and beyond, which includes further enhancement of existing IMT and the development of IMT-2020. It should be noted that this Recommendation is defined considering the development of IMT to date based on Recommendation ITU-R M.1645. Keywords IMT, IMT-2020 Abbreviations/Glossary ICT Informati
12、on and Communication Technology IMT International Mobile Telecommunications IoT Internet of Things M2M Machine-to-Machine MIMO Multiple Input Multiple Output QoE Quality of Experience QoS Quality of Service RAT Radio access technology RLAN Radio Local Area Network Related ITU Recommendations, Report
13、s Recommendation ITU-R M.1645 Framework and overall objectives of the future development of IMT-2000 and systems beyond IMT-2000 Recommendation ITU-R M.2012 Detailed specifications of the terrestrial radio interfaces of International Mobile Telecommunications Advanced (IMT-Advanced) Report ITU-R M.2
14、320 Future technology trends of terrestrial IMT systems Report ITU-R M.2370 IMT Traffic estimates for the years 2020 to 2030 Report ITU-R M.2376 Technical feasibility of IMT in bands above 6 GHz Report ITU-R M.2134 Requirements related to technical performance for IMT-Advanced radio interface(s) 2 R
15、ec. ITU-R M.2083-0 The ITU Radiocommunication Assembly, considering a) that ITU has contributed to standardization and harmonized use of IMT, which has provided telecommunication services on a global scale; b) that technological advancement and the corresponding user needs will promote innovation an
16、d accelerate the delivery of advanced communication applications to consumers; c) that Question ITU-R 229/5 addresses further development of the terrestrial component of IMT and the relevant studies under this Question are in progress within ITU-R; d) that Recommendation ITU-R M.1645 defines the fra
17、mework and overall objectives of the future development of IMT-2000 and systems beyond IMT-2000; e) that for global operation and economies of scale, which are key requirements for the success of mobile telecommunication systems, it is desirable to establish a harmonized timeframe for future develop
18、ment of IMT considering technical, operational and spectrum related aspects; f) that wireless communication applications are expected to expand into new market segments to facilitate the digital economy, e.g. smart grid, e-health, intelligent transport systems and traffic control, which would bring
19、requirements beyond what can be addressed in todays IMT application areas; g) that rapid uptake of smartphones, tablets and innovative mobile applications created by users has resulted in a tremendous increase in the volume of mobile data traffic; h) that the number of devices accessing the network
20、are expected to increase due to the emerging applications of Internet of Things (IoT); i) that technologies such as beamforming, massive-Multiple Input Multiple Output (MIMO) are easier to implement in higher frequencies due to short wavelength; j) that wide contiguous bandwidth would enhance data d
21、elivery efficiency and ease the complexity of hardware implementation; k) that the cell size is being reduced (e.g. the order of some tens of metres) to provide larger area traffic capacity in dense areas; l) that IMT interworks with other radio systems, recognizing a) that some administrations had
22、deployed IMT-Advanced systems before global deployment due to the rapid increase of data traffic; b) that development of new radio interfaces that support the new capabilities of IMT-2020 is expected along with the enhancement of IMT-2000 and IMT-Advanced systems, noting that pursuant to Article 44
23、of the ITU Constitution, Member States shall endeavour to apply the latest technical advances as soon as possible, recommends that the Annex should be used as the framework and the overall objectives for the future development of IMT for 2020 and beyond. Rec. ITU-R M.2083-0 3 Annex TABLE OF CONTENTS
24、 Page 1 Introduction 3 2 Observation of trends 4 2.1 User and application trends 4 2.2 Growth in IMT traffic . 5 2.3 Technology trends 6 2.4 Studies on technical feasibility of IMT between 6 and 100 GHz . 8 2.5 Spectrum implications 9 3 Evolution of IMT 10 3.1 How IMT has developed 10 3.2 Role of IM
25、T for 2020 and beyond 10 4 Usage scenarios for IMT for 2020 and beyond 11 5 Capabilities of IMT-2020 . 12 6 Framework and objectives 17 6.1 Relationships . 17 6.2 Timelines 17 6.3 Focus areas for further study 19 1 Introduction The socio-technical evolution in the last few decades has been significa
26、ntly driven by the evolution of mobile communications and has contributed to the economic and social development of both developed and developing countries. Mobile communications has become closely integrated in the daily life of the whole society. It is expected that the socio-technical trends and
27、the evolution of mobile communications systems will remain tightly coupled together and will form a foundation for society in 2020 and beyond. In the future, however, it is foreseen that new demands, such as more traffic volume, many more devices with diverse service requirements, better quality of
28、user experience (QoE) and better affordability by further reducing costs, will require an increasing number of innovative solutions. The objective of this Recommendation is to establish the vision for IMT for 2020 and beyond, by describing potential user and application trends, growth in traffic, te
29、chnological trends and spectrum implications, and by providing guidelines on the framework and the capabilities for IMT for 2020 and beyond. 4 Rec. ITU-R M.2083-0 2 Observation of trends 2.1 User and application trends Mobile devices play various, continuously evolving roles in everyday life. Future
30、 IMT systems should support emerging new use cases, including applications requiring very high data rate communications, a large number of connected devices, and ultra-low latency and high reliability applications. More specific user and application trends are explained in 2.1.1 to 2.1.8. 2.1.1 Supp
31、orting very low latency and high reliability human-centric communication People expect the experience of instantaneous connectivity wherein applications need to exhibit “flash” behaviour without waiting times: a single click and the response is perceived as instantaneous. Flash behaviour will be a k
32、ey factor for the success of cloud services and virtual reality and augmented reality applications. The low latency and high reliability communication that supports such behaviour thus becomes an enabler for the future development of new applications, e.g. in health, safety, office, entertainment, a
33、nd other sectors. 2.1.2 Supporting very low latency and high reliability machine-centric communication The reliability and latency in todays communication systems have been designed with the human user in mind. For future wireless systems, the design of new applications is envisaged based on machine
34、-to-machine (M2M) communication with real-time constraints. Driverless cars, enhanced mobile cloud services, real-time traffic control optimization, emergency and disaster response, smart grid, e-health or efficient industrial communications are examples of where low latency and high reliability can
35、 improve quality of life. 2.1.3 Supporting high user density Users will expect a satisfactory end-user experience in the presence of a large number of concurrent users, for example in a crowd with a high traffic density per unit area and a large number of handsets and machines/devices per unit area.
36、 Examples are audio-visual content to be provided concurrently across an entire cell or infotainment applications in shopping malls, stadiums, open air festivals, or other public events that attract a lot of people. This includes users who use their phone while in unexpected traffic jams, or when tr
37、avelling in public transportation systems, as well as professionals working in organisations such as police, fire brigades, and ambulances to exploit the public communication networks in crowded environments and machine-centric devices. 2.1.4 Maintaining high quality at high mobility A connected soc
38、iety in the years beyond 2020 will need to accommodate a similar user experience for end-users on the move and when they are static e.g. at home or in the office. To offer the “best experience” to highly mobile users and communicating machine devices, robust and reliable connectivity solutions are n
39、eeded as well as the ability to efficiently maintain service quality with mobility. Maintaining high quality at high mobility will enable successful deployment of applications on user equipment located within a moving platform such as cars or high-speed trains which are being deployed in several cou
40、ntries. Connectivity on mobile platforms may be provided via IMT, Radio Local Area Network (RLAN) or another network on that platform using suitable backhaul. 2.1.5 Enhanced multimedia services It is likely that demand for mobile high-definition multimedia will increase in many areas beyond entertai
41、nment, such as medical treatment, safety, and security. Rec. ITU-R M.2083-0 5 User devices will get enhanced media consumption capabilities, such as Ultra-High Definition display, multi-view High Definition display, mobile 3D projections, immersive video conferencing, and augmented reality and mixed
42、 reality display and interface. This will all lead to a demand for significantly higher data rates. Media delivery will be both to individuals and to groups of users. 2.1.6 Internet of Things In the future, every object that can benefit from being connected will be connected through wired or wireles
43、s internet technologies. Therefore, the number of connected devices will grow rapidly and is expected to exceed the number of human user devices in the future. These connected “things” can be smart phones, sensors, actuators, cameras, vehicles, etc., ranging from low-complexity devices to highly com
44、plex and advanced devices. A significant number of connected devices are expected to use IMT systems. As a result, the connected entities are bound to have varying levels of energy consumption, transmission power, latency requirements, cost, and many other indices critical for stable connection. In
45、addition, as more and more things get connected, various services that utilize the connection capabilities of things will appear. Smart energy distribution grid system, agriculture, healthcare, vehicle-to-vehicle and vehicle-to-road infrastructure communication are generally viewed as potential fiel
46、ds for further growth of the Internet of Things (IoT). 2.1.7 Convergence of applications New applications are increasingly being delivered over IMT, including e-Government, public protection and disaster relief communication, education, linear1 and on-demand audio-visual content, and e-health. This
47、convergence of applications must take account of the requirements associated with these applications. 2.1.8 Ultra-accurate positioning applications As the accuracy of positioning gets better, location-based service applications that provide improved emergency rescue services, as well as precise grou
48、nd based navigation service for unmanned vehicles or drones may expand extensively. 2.2 Growth in IMT traffic There are many drivers influencing the growth of future IMT traffic demand, especially the adoption of devices with enhanced capabilities that require increased bit rates and bandwidth usage
49、. Similar drivers increased traffic in the transition from IMT-2000 to IMT-Advanced. The main drivers behind the anticipated traffic growth include increased video usage, device proliferation and application uptake. These are expected to evolve over time, and this evolution will differ between countries due to social and economic differences. These drivers and other trends which impact traffic growth are detailed in Report ITU-R M.2370. The Report contains global IMT traffic estimates beyond 2020 from several sources. These estimates anticipate that global I
