1、 Recommendation ITU-R M.1036-5 (10/2015) Frequency arrangements for implementation of the terrestrial component of International Mobile Telecommunications (IMT) in the bands identified for IMT in the Radio Regulations (RR) M Series Mobile, radiodetermination, amateur and related satellite services i
2、i Rec. ITU-R M.1036-5 Foreword The role of the Radiocommunication Sector is to ensure 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
3、basis of which Recommendations are adopted. The regulatory and policy functions of the 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
4、 IPR is described in the Common Patent Policy for ITU-T/ITU-R/ISO/IEC referenced in Annex 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 I
5、mplementation of the Common Patent Policy for ITU-T/ITU-R/ISO/IEC and the ITU-R patent 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-
6、out; film for television BS Broadcasting service (sound) BT Broadcasting service (television) 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
7、meteorology SF Frequency sharing and coordination between fixed-satellite and fixed service 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 th
8、e procedure detailed in Resolution ITU-R 1. Electronic Publication Geneva, 2015 ITU 2015 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without written permission of ITU. Rec. ITU-R M.1036-5 1 RECOMMENDATION ITU-R M.1036-5 Frequency arrangements for impl
9、ementation of the terrestrial component of International Mobile Telecommunications (IMT) in the bands identified for IMT in the Radio Regulations (RR) (Question ITU-R 229-2/5) (1994-1999-2003-2007-2012-2015) Scope This Recommendation provides guidance on the selection of transmitting and receiving f
10、requency arrangements for the terrestrial component of IMT systems as well as the arrangements themselves, with a view to assisting administrations on spectrum-related technical issues relevant to the implementation and use of the terrestrial component of IMT in the bands identified in the RR. The f
11、requency arrangements are recommended from the point of view of enabling the most effective and efficient use of the spectrum to deliver IMT services while minimizing the impact on other systems or services in these bands and facilitating the growth of IMT systems. This Recommendation is complemente
12、d by other ITU-R Recommendations and Reports on IMT that provide additional details on a number of aspects including unwanted emission characteristics for the bands addressed in this Recommendation and radio interface specifications. Keywords IMT, frequency arrangements, terrestrial component of IMT
13、 Introduction IMT-2000, third generation mobile systems, started service around the year 2000 and provide access by means of one or more radio links to a wide range of telecommunication services supported by the fixed telecommunication networks (e.g. PSTN/ISDN/Internet protocol (IP) and to other ser
14、vices specific to mobile users. Since then, IMT-2000 has been continually enhanced. A range of mobile terminal types is encompassed, linking to terrestrial and/or satellite-based networks, and the terminals may be designed for mobile or fixed use. International Mobile Telecommunications-Advanced (IM
15、T-Advanced) systems are mobile systems that include the new capabilities of IMT that go beyond those of IMT-2000. Such systems provide access to a wide range of telecommunication services including advanced mobile services, supported by mobile and fixed networks, which are increasingly packet-based.
16、 IMT-Advanced systems support low to high mobility applications and a wide range of data rates in accordance with user and service demands in multiple user environments. IMT-Advanced also has capabilities for high-quality multimedia applications within a wide range of services and platforms providin
17、g a significant improvement in performance and quality of service. International Mobile Telecommunications (IMT) encompasses both IMT-2000 and IMT-Advanced collectively. Key features of IMT-2000 and IMT-Advanced are contained in Recommendations ITU-R M.1645 and ITU-R M.1822. Frequency aspects and un
18、wanted emission parameters are contained in Recommendations ITU-R M.1580, ITU-R M.1581, ITU-R M.2070 and ITU-R M.2071. Frequency arrangements may be included in Recommendation ITU-R M.1036 before the associated companion Recommendations are updated to provide the generic unwanted emission characteri
19、stics of mobile and base stations using the terrestrial radio interfaces of IMT. 2 Rec. ITU-R M.1036-5 Limits on the maximum unwanted emission characteristics are necessary to protect other radio systems including those in adjacent bands and to help establish the coexistence between different techno
20、logies for the bands addressed in this Recommendation. The capabilities of IMT systems are being continuously enhanced in line with user needs and technology trends. The following bands are identified for IMT in the Radio Regulations (RR) edition 2012. This identification does not preclude the use o
21、f these bands by any application of the services to which they are allocated or identified and does not establish priority in the Radio Regulations. It has to be noted that different regulatory provisions apply to each band. The Regional deviations for each band are described in the different footno
22、tes applying in each band, as shown in Table 1. TABLE 1 Band (MHz) Footnotes identifying the band for IMT 450-470 5.286AA 698-960 5.313A, 5.317A 1 710-2 025 5.384A, 5.388 2 110-2 200 5.388 2 300-2 400 5.384A 2 500-2 690 5.384A 3 400-3 600 5.430A, 5.432A, 5.432B, 5.433A Also, administrations may depl
23、oy IMT systems in bands allocated to the mobile service other than those identified in the RR, and administrations may deploy IMT systems only in some or parts of the bands identified for IMT in the RR. The ITU Radiocommunication Assembly, considering a) that the ITU is the internationally recognize
24、d organization that has sole responsibility to define and to recommend the standards and globally harmonized frequency arrangements for IMT systems, with the collaboration of other relevant organizations; b) that globally harmonized spectrum and globally harmonized frequency arrangements for IMT are
25、 desirable; c) that a minimized number of globally harmonized frequency arrangements in the bands identified for IMT will reduce the overall cost of IMT networks and terminals by providing economies of scale, and facilitating deployment and cross-border coordination; d) that, when frequency arrangem
26、ents cannot be harmonized globally, a common base and/or mobile transmit band would facilitate the development of terminal equipment for global roaming. A common base transmit band, in particular, provides the possibility to broadcast to roaming users all information necessary to establish a call; e
27、) that, when developing frequency arrangements, possible technological constraints (e.g. cost efficiency, size and complexity of terminals, high speed/low power digital signal processing and the need for compact batteries) should be taken into account; f) that guardbands for IMT systems should be mi
28、nimized to avoid wasting spectrum; Rec. ITU-R M.1036-5 3 g) that when developing frequency arrangements, current and future advances in IMT (e.g. multimode/multiband terminals, enhanced filter technology, adaptive antennas, advanced signal processing techniques, techniques associated with cognitive
29、radio systems, variable duplex technology and wireless connectivity peripherals) may facilitate more efficient use and increase overall utilization of radio spectrum; h) that individual subscriber traffic in IMT systems is expected to be dynamically asymmetric where the direction of asymmetry can va
30、ry rapidly within short (ms) time-frames; i) that per-cell level traffic for IMT systems is expected to be dynamically asymmetric where the direction of asymmetry will vary based on the aggregate subscriber traffic; j) that IMT network traffic may change in asymmetry over the longer term; k) that th
31、e IMT-2000 radio interfaces are detailed in Recommendation ITU-R M.1457 and currently include two modes of operation frequency division duplex (FDD) and time division duplex (TDD); l) that the IMT-Advanced radio interfaces are detailed in Recommendation ITU-R M.2012 and include both FDD and TDD mode
32、s; m) that there are benefits in the use of both FDD and TDD modes in the same band; however, this usage needs careful consideration to minimize the interference between the systems, as per the guidance provided in considering o); especially if flexible FDD/TDD boundaries are selected, there may be
33、a need for additional filters in both transmitters and receivers, guardbands that may impact spectrum utilization, and the use of various mitigation techniques for specific situations; n) that selectable/variable duplex technology is considered to be one technique that can assist in the use of multi
34、ple frequency bands to facilitate global and convergent solutions. Such a technology could bring further flexibility that would enable IMT terminals to support multiple frequency arrangements; o) that Reports ITU-R M.2030, ITU-R M.2031, ITU-R M.2045, ITU-R M.2109, ITU-R M.2110 and ITU-R M.2041 can a
35、ssist in determining means to ensure coexistence (e.g. guardband requirements between the FDD and TDD systems) and compatibility between the satellite and terrestrial components of IMT, noting that Attachments 1 through 3 provide information on specific vocabulary and terms utilized in this Recommen
36、dation, the implementation objectives of IMT and a listing of related Recommendations and Reports, recognizing a) that Resolution 646 (Rev.WRC-12) encourages administrations to consider the following identified frequency bands, amongst others, for public protection and disaster relief when undertaki
37、ng their national planning: in Region 2: 746-806 MHz, 806-869 MHz; in Region 31: 806-824/851-869 MHz; b) that the identification of the above frequency bands/ranges for public protection and disaster relief does not preclude the use of these bands/frequencies by any application within the services t
38、o which these bands/frequencies are allocated and does not preclude the use of nor 1 Some countries in Region 3 have also identified the bands 380-400 MHz and 746-806 MHz for public protection and disaster relief applications. 4 Rec. ITU-R M.1036-5 establish priority over any other frequencies for p
39、ublic protection and disaster relief in accordance with the Radio Regulations; c) that at WARC-92, 230 MHz of spectrum was identified for IMT-2000 in the bands 1 885-2 025 MHz and 2 110-2 200 MHz, including the bands 1 980-2 010 MHz and 2 170-2 200 MHz for the satellite component of IMT-2000, in No.
40、 5.388 and under the provisions of Resolution 212 (Rev.WRC-07); d) that Resolution 212 (Rev.WRC-07) notes that the availability of the satellite component of IMT in the bands 1 980-2 010 MHz and 2 170-2 200 MHz simultaneously with the terrestrial component of IMT in the bands identified in No. 5.388
41、 would improve the overall implementation and the attractiveness of IMT, recommends 1 that the frequency arrangements in Sections 1 to 6 should be used for the implementation of IMT in the bands identified for IMT in the Radio Regulations (RR); and 2 that the implementation aspects detailed in Annex
42、 1 should be taken into account when implementing the frequency arrangements in Sections 1 to 6. Annex 1 Implementation aspects applicable to the frequency arrangements in Sections 1 to 6 The order of the frequency arrangements within each Section does not imply any priority. Administrations may imp
43、lement any of the recommended frequency arrangements to suit their national conditions. Administrations may implement all or part of each frequency arrangement. It is noted that Administrations may implement other frequency arrangements (for example, arrangements which include different duplex schem
44、es, different FDD/TDD boundaries, etc.) to fulfil their requirements. These administrations should consider geographical neighbouring deployments as well as matters related to achieving economies of scale, facilitating roaming, and measures to minimize interference. Administrations should take into
45、account the fact that some of the different frequency arrangements in the same band have an overlap of base station transmitter and mobile station transmitter bands. Interference problems may result if different frequency arrangements with such overlaps are implemented by neighbouring administration
46、s. Sections 1 to 6 are parts of this Recommendation, and they should be considered in their entirety when implementing frequency arrangements. Traffic asymmetry implications It is recommended that administrations and operators consider asymmetric traffic requirements when assigning spectrum or imple
47、menting systems. Applications supported by IMT may have various degrees of asymmetry. Report ITU-R M.2072 describes not only download dominant applications such as e-newspaper, but also upload dominant applications such as observation (network-camera) and upload file transfer. Also, the degree of as
48、ymmetry of other applications such Rec. ITU-R M.1036-5 5 as high-quality video telephony, mobile multicasting, and videoconference depends on their requirements. In this context, asymmetry means that the basic amount of traffic may differ between the uplink and the downlink direction. As a possible
49、consequence, the amount of resources needed for the downlink may differ from that of the uplink. Estimates for a mix of traffic are described in Report ITU-R M.2023, Report ITU-R M.2078 and Recommendation ITU-R M.1822. Suitable techniques to support asymmetric traffic are described in Report ITU-R M.2038. It is noted that traffic asymmetry can be accommodated by a variety of techniques including flexible timeslot allocation, different modulation formats, and different coding schemes for the uplink and downlink. With equal FDD pairing for uplink and downlink, or TDD, varying degr
