1、 Recommendation ITU-R M.2047-0(12/2013)Detailed specifications of the satelliteradio interfaces of International MobileTelecommunications-Advanced (IMT-Advanced)M SeriesMobile, radiodetermination, amateurand related satellite servicesii Rec. ITU-R M.2047-0 Foreword The role of the Radiocommunication
2、 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 basis of which Recommendations are adopted. The regulatory and po
3、licy 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 IPR is described in the Common Patent Policy for ITU-T/ITU-R/ISO
4、/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 Implementation of the Common Patent Policy for ITU-T/ITU-R/ISO/IEC
5、 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-out; film for television BS Broadcasting service (sound) BT Broad
6、casting 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 meteorology SF Frequency sharing and coordination between fixed-s
7、atellite 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 the procedure detailed in Resolution ITU-R 1. Electronic Publicatio
8、n Geneva, 2014 ITU 2014 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without written permission of ITU. Rec. ITU-R M.2047-0 1 RECOMMENDATION ITU-R M.2047-0 Detailed specifications of the satellite radio interfaces of International Mobile Telecommunicat
9、ions-Advanced (IMT-Advanced) (2013) Scope This Recommendation identifies the satellite radio interface technologies of International Mobile Telecommunications-Advanced (IMT-Advanced) and provides the detailed radio interface specifications. These radio interface specifications detail the features an
10、d parameters of the satellite component of IMT-Advanced. This Recommendation includes the capability to ensure worldwide compatibility, international roaming and access to high-speed data services. Keywords Satellite; radio interface; IMT-Advanced; SAT-OFDM; BMSat. Abbreviations/Glossary 3GPP Third
11、generation partnership project ACK Acknowledgement AI Acquisition indicator AM Acknowledge mode AMC Adaptive modulation and coding ARQ Automatic repeat request AS Access stratum 3GPP 3rdGeneration partnership project BCCH Broadcast control channel BCH Broadcast channel BPSK Binary phase shift keying
12、 BSR Buffer status reporting CCCH Common control channel CCE Control channel element CCSA China communications standards association CFI Control format indicator CGC Complementary ground component CoMT Coordinated multi-point transmission CP Cyclic prefix CQI Channel quality information CRC Cyclic r
13、edundancy check CRS Cell-specific reference signals C-RNTI Control-radio network temporary identifier 2 Rec. ITU-R M.2047-0 CSI Channel state information DCCH Dedicated control channel DCI Downlink control information DFT Discrete Fourier transform DFTS-OFDM Discrete Fourier transform-spread orthogo
14、nal frequency division multiplexing DL Downlink DL-SCH Downlink shared channel DM-RS Demodulation reference signals DSAT-eNB Donor satellite eNodeB DTCH Dedicated traffic channel ECR Efficient code rate EF Envelop fluctuation EIRP Equivalent isotropically radiated power E-PPCH Enhanced physical pagi
15、ng channel E-USRA Evolved universal satellite radio access E-USRAN Evolved universal satellite radio access network FEC Forward error correction FDD Frequency division duplexing FDMA Frequency division multiple access FFR Fractional frequency reuse FSTD Frequency switched transmit diversity GBR Guar
16、anteed bit rate GEO Geostationary earth orbit GNSS Global navigation satellite system GPS Global positioning system GSO Geostationary-satellite orbit G/T Antenna gain-to-noise temperature GTP General packet radio service tunnelling protocol HARQ Hybrid ARQ HEO Highly elliptical orbit HI HARQ indicat
17、or IBIC Inter-beam interference coordination ID Identity IFFT Inverse fast Fourier transform IMAP Internet message access protocol IMT International Mobile Telecommunications Rec. ITU-R M.2047-0 3 IP Internet protocol ITS Intelligent transport systems IU Interleaving unit L2 Layer 2 LCID Logical cha
18、nnel identifier LEO Low earth orbit LHCP Left hand circular polarisation LTE Long term evolution MAC Medium access control MBMS Multimedia broadcast and multicast service MBSFN Multicast/broadcast over a single frequency network MCCH Multicast control channel MCH Multicast channel MCS Modulation and
19、 coding scheme MEO Medium earth orbit MES Mobile earth station MIMO Multiple input and multiple output antennas MME Mobility management entity MMEC Mobility management entity code MSS Mobile satellite service MTCH Multicast traffic channel NACK Negative-acknowledgement N/A Not applicable NAS Non-acc
20、ess stratum NDI New data indicator OAM Network operations and maintenance OFDM Orthogonal frequency division multiplexing OFDMA Orthogonal frequency division multiple access OSC Offset-modulated single-carrier PAPR Peak to average power ratio PBCH Physical broadcast channel PCCC Parallel concatenate
21、d convolutional code PCCH Paging control channel PCFICH Physical control format indicator channel PCH Paging channel PDCCH Physical downlink control channel 4 Rec. ITU-R M.2047-0 PDCP Packet data convergence protocol PDSCH Physical downlink shared channel PDU Protocol data unit PHICH Physical hybrid
22、 ARQ indicator channel PMCH Physical multicast channel PMI Precoding matric indicator POP Post office protocol PRACH Physical random access channel PRB Physical resource block PRS Positioning reference signals PSD Power spectral density PSRACH Physical satellite random access channel PSS Primary syn
23、chronization channel PUCCH Physical uplink control channel PUSCH Physical uplink shared channel QAM Quadrature amplitude modulation QoS Quality of service QPSK Quadrature phase shift keying RA Random access RACH Random access channel RAN Radio access network RB Resource block RBG Resource block grou
24、p RE Resource element RF Radio frequency RHCP Right hand circular polarisation RI Rank indicator RIT Radio Interface Technology RLC Radio link control RM Receiver memory ROHC Robust header compression RRC Radio resource control RRM Radio resource management RS Reference signal RTD Round trip delay R
25、x Receiver Rec. ITU-R M.2047-0 5 S-eNodeB Satellite eNodeB in the SAT-OFDM S1AP S1 application protocol SAT-eNB Satellite eNodeB SDU Service data unit S-GW Serving gateway SC-FDMA Single carrier frequency division multiple access SCH Synchronization signal SFBC Space-frequency block coding SI System
26、 information SIR Signal to interference ratio SN Sequence number SNR Signal to noise ratio SRS Sounding reference symbol SSS Secondary synchronization channel STC Space-time coding TA Time advance TB Transport block TDM Time division multiplexing TF Transport format TM Transparent mode TMSI Temporar
27、y mobile subscriber identity TS Technical specification TTA Korean telecommunication technology association TTI Transmission time interval Tx Transmitter UCI Uplink control information UE User equipment UL Uplink UL-SCH Uplink shared channel UM Unacknowledged mode UTC Coordinated universal time VARQ
28、 Virtual HARQ VoIP Voice over Internet protocol X2AP X2 Application Protocol 6 Rec. ITU-R M.2047-0 Related ITU Recommendations, Reports and Resolutions Recommendation ITU-R M.1224-1 Vocabulary of Terms for International Mobile Telecommunications (IMT) Recommendation ITU-R M.1645 Framework and overal
29、l objectives of the future development of IMT-2000 and systems beyond IMT-2000 Recommendation ITU-R M.1822 Framework for services supported by IMT Recommendation ITU-R M.1850-1 Detailed specifications of the radio interfaces for the satellite component of International Mobile Telecommunications-2000
30、 (IMT-2000) Report ITU-R M.2176-1 Vision and requirements for the satellite radio interface(s) of IMT-Advanced Report ITU-R M.2279 Outcome of the evaluation, consensus building and decision of the IMT-Advanced satellite process (Steps 4 to 7), including characteristics of IMT-Advanced satellite radi
31、o interfaces Resolution ITU-R 56-1 Naming for International Mobile Telecommunications Resolution ITU-R 57-1 Principles for the process of development of IMT-Advanced. The ITU Radiocommunication Assembly, considering a) that International Mobile Telecommunications (IMT) systems are mobile broadband s
32、ystems including both IMT-2000 and IMT-Advanced; b) that IMT-Advanced systems include the new capabilities of IMT that go beyond those of IMT-2000; c) that such systems provide access to a wide range of telecommunication services including advanced mobile services, supported by mobile and fixed netw
33、orks, which are increasingly packet-based; d) that 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; e) that IMT-Advanced also has capabilities for high-quality multimedia applicati
34、ons within a wide range of services and platforms providing a significant improvement in performance and quality of service; f) that the key features of IMT-Advanced are: a high degree of commonality of functionality worldwide while retaining the flexibility to support a wide range of services and a
35、pplications in a cost-efficient manner; compatibility of services within IMT and with fixed networks; capability of interworking with other radio access systems; high-quality mobile services; user equipment suitable for worldwide use; user-friendly applications, services and equipment; worldwide roa
36、ming capability; enhanced peak data rates (i.e. wideband) to support advanced services and applications; g) that these features enable IMT-Advanced to address evolving user needs; Rec. ITU-R M.2047-0 7 h) that the capabilities of IMT-Advanced systems are being continuously enhanced in line with user
37、 trends and technology developments; j) that the satellite component of IMT-Advanced will be an integral part of future IMT infrastructure with the optimized service delivery; k) that it is desirable to achieve as much commonality as possible with the terrestrial component when designing and develop
38、ing an IMT-Advanced satellite system, recognizing a) that Resolution ITU-R 57-1 Principles for the process of development of IMT-Advanced, outlines the essential criteria and principles used in the process of developing the Recommendations and Reports for IMT-Advanced, including Recommendation(s) fo
39、r the radio interface specification; b) that Report ITU-R M.2279 contains the outcome and conclusion of Steps 4 through 7 of the evaluation, consensus building and decision of the IMT-Advanced satellite process, including characteristics of IMT-Advanced satellite radio interfaces, recommends 1 that
40、the satellite radio interfaces for IMT-Advanced should be: “BMSat” (Broadband Mobile Satellite); and “SAT-OFDM” (Satellite-Orthogonal Frequency Division Multiplexing); 2 that the information provided or referenced in Annexes 1 and 2 should be used as the complete set of standards for the detailed sp
41、ecifications of the satellite radio interfaces of IMT-Advanced. 8 Rec. ITU-R M.2047-0 Annex 1 Specification of the BMSat radio interface technology TABLE OF CONTENTS Page 1.1 Overview of the radio interface technology . 8 1.1.1 Overview of the radio interface technology . 8 1.1.2 Overview of the sys
42、tem aspects of the RIT . 8 1.1.3 Overview of the specific characteristics of the RIT . 22 1.2 Detailed specification of the radio interface technology 33 1.2.1 BMSat Specific 34 1.2.2 Radio Layer 1 . 34 1.2.3 Radio Layers 2 QPSK, 16QAM/16APSK for UE-Satellite link). In case of multi-antenna transmis
43、sion, the modulation symbols are mapped to multiple layers and precoded before being mapped to the different antenna ports. Alternatively, transmit diversity can be applied. Finally, the (precoded) modulation symbols are mapped to the time-frequency resources allocated for the transmission. Downlink
44、 transmission is based on conventional OFDM with a cyclic prefix. The subcarrier spacing is f = 15 kHz and two cyclic prefix lengths are supported: normal cyclic prefix 4.7 s and extended cyclic prefix 16.7 s. In the frequency domain, the number of resource blocks can range from 6 to 110 per compone
45、nt carrier (for channel bandwidths ranging from 1.4 to 20 MHz respectively), where a resource block is 180 kHz in the frequency domain. There can be up to five component carriers transmitted in parallel implying an overall bandwidth up to 100 MHz. Uplink transmission is based on DFT-spread OFDM (DFT
46、S-OFDM). DFTS-OFDM can be seen as a DFT precoder, followed by conventional OFDM with the same numerology as in the downlink. Multiple DFT precoding sizes, corresponding to transmission with different scheduled bandwidths, can be used. Depending on the deployed satellite/UE power amplifier performanc
47、e, DFTS-OFDM and Offset-modulated Single-Carrier (OSC) could be used in both uplink and downlink of UE-Satellite link. The remaining downlink transport channels (PCH, BCH, MCH) are based on the same general physical-layer processing as DL-SCH, although with some restrictions in the set of features u
48、sed. 1.1.2.3.4 Multi-antenna transmission A wide range of multi-antenna transmission schemes are supported in the downlink of UE-CGC link: Single-antenna transmission using a single cell-specific reference signal. Rec. ITU-R M.2047-0 21 Closed-loop spatial multiplexing, also known as codebook-based
49、beam-forming or precoding, of up to four layers using cell-specific reference signals. Feedback reports from the terminal are used to assist CGC in selecting a suitable precoding matrix. Open-loop spatial multiplexing, also known as large-delay cyclic delay diversity, of up to four layers using cell-specific reference signals. Spatial multiplexing of up to eight layers using UE-specific reference signals. CGC may use feedback reports or exploit channel reciprocity to set the beam-forming weights. Transmit diversity based on space-frequency block co
