1、 ETSI EN 302 550-1-3 V1.1.1 (2010-02)European Standard (Telecommunications series) Satellite Earth Stations and Systems (SES);Satellite Digital Radio (SDR) Systems;Part 1: Physical Layer of the Radio Interface;Sub-part 3: Inner Physical Layer Multi Carrier ModulationETSI ETSI EN 302 550-1-3 V1.1.1 (
2、2010-02)2Reference DEN/SES-00312-1-3 Keywords digital, layer 1, radio, satellite ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grass
3、e (06) N 7803/88 Important notice Individual copies of the present document can be downloaded from: http:/www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the re
4、ference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or c
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6、ght Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2010. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTM, TIPHONTM, the TIPHON logo an
7、d the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. LTE is a Trade Mark of ETSI currently being registered for the benefit of its Members and of the 3GPP O
8、rganizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI EN 302 550-1-3 V1.1.1 (2010-02)3Contents Intellectual Property Rights 4g3Foreword . 4g3Introduction 4g31 Scope 5g32 References 5g32.1 Normative references . 5g32.2 Informative referenc
9、es 5g33 Definitions, symbols and abbreviations . 6g33.1 Definitions 6g33.2 Symbols 6g33.3 Abbreviations . 6g34 Inner physical layer - Multi Carrier 6g34.1 Interfacing to OPL (Outer Physical Layer) 7g34.2 The profile approach - different multi carrier modes . 8g34.2.1 Profile definition . 8g34.2.2 Mo
10、des definition . 8g34.2.3 Parameters for QPSK subcarrier mapping 9g34.2.4 Parameters for 16QAM subcarrier mapping . 10g34.3 Generation of one Phy section 10g34.3.1 Overview 10g34.3.1.1 Overview of Mode 2, 2s, 3 and 4 11g34.3.2 RFU section insertion . 11g34.3.3 Energy dispersal (scrambling) 12g34.3.4
11、 Accumulation of CU into one Phy section 12g34.4 Pilot tone insertion and signalling 12g34.4.1 Mode 2 and Mode 2s: 2k5MHz . 12g34.4.1.1 Preamble insertion . 13g34.4.1.2 Scattered pilots 14g34.4.1.3 Continuous pilots 15g34.4.2 Mode 3: 1k1,7MHz . 16g34.4.2.1 Preamble insertion . 16g34.4.2.2 Scattered
12、pilots 17g34.4.2.3 Continuous pilots 18g34.4.3 Mode 4: 0,5k1,7MHz 19g34.4.3.1 Preamble insertion . 20g34.4.3.2 Scattered pilots 20g34.4.3.3 Continuous pilots 21g34.5 Bit mapping to constellation . 22g34.5.1 QPSK Modulation 22g34.5.2 16QAM Modulation (non-hierarchical) 22g34.5.3 16QAM Modulation (hie
13、rarchical) . 23g34.5.4 Normalization of power levels 24g34.6 Pulse shaping and guard interval insertion . 25g3History 26g3ETSI ETSI EN 302 550-1-3 V1.1.1 (2010-02)4Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The informa
14、tion pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ET
15、SI Secretariat. Latest updates are available on the ETSI Web server (http:/webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000
16、 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This European Standard (Telecommunications series) has been produced by ETSI Technical Committee Satellite Earth Stations and Systems (SES). The present document is part 1, s
17、ub-part 3 of a multi-part deliverable. Full details of the entire series can be found in part 1, sub-part 1 i.4. National transposition dates Date of adoption of this EN: 15 February 2010 Date of latest announcement of this EN (doa): 31 May 2010 Date of latest publication of new National Standard or
18、 endorsement of this EN (dop/e): 30 November 2010 Date of withdrawal of any conflicting National Standard (dow): 30 November 2010 Introduction An SDR system enables broadcast to fixed and mobile receivers through satellites and complementary terrestrial transmitters. Functionalities, architecture an
19、d technologies of such systems are described in TR 102 525 i.5. Several existing and planned ETSI standards specify parts of the SDR system, with the aim of interoperable implementations. The physical layer of the radio interface (air interface) is divided up into the outer physical layer, the inner
20、 physical layer with single carrier modulation, and the inner physical layer with multi carrier modulation. These parts can be used all together in SDR compliant equipment, or in conjunction with other existing and future specifications. The present document specifies the inner physical layer with m
21、ulti carrier modulation. The inner physical layer with single carrier modulation is specified in EN 302 550-1-2 i.3, and the outer physical layer in EN 302 550-1-1 i.4. Guidelines for using the physical layer standard can be found in TR 102 604 i.6. The physical layer specifications have previously
22、been published as “Technical Specification (TS)“ type ETSI deliverables. The present document supersedes TS 102 551-2 i.7 and is recommended for new implementations. The functional differences between the previous TS and the present document are: Exclusion of Mode 1, introduction of Mode 2s and intr
23、oduction of bandwidth flexibility. ETSI ETSI EN 302 550-1-3 V1.1.1 (2010-02)51 Scope The present document concerns the radio interface of SDR broadcast receivers. It specifies functionality of the inner physical layer with multi carrier modulation. It allows implementing this part of the system in a
24、n interoperable way. 2 References References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For a specific reference, subsequent revisions do not apply. Non-specific reference may be made only to a complete document or a part thereof
25、and only in the following cases: - if it is accepted that it will be possible to use all future changes of the referenced document for the purposes of the referring document; - for informative references. Referenced documents which are not found to be publicly available in the expected location migh
26、t be found at http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee their long term validity. 2.1 Normative references The following referenced documents are indispensable for the application of the present doc
27、ument. For dated references, only the edition cited applies. For non-specific references, the latest edition of the referenced document (including any amendments) applies. Not applicable. 2.2 Informative references The following referenced documents are not essential to the use of the present docume
28、nt but they assist the user with regard to a particular subject area. For non-specific references, the latest version of the referenced document (including any amendments) applies. i.1 ETSI EN 300 744 (V1.5.1): “Digital Video Broadcasting (DVB); Framing structure, channel coding and modulation for d
29、igital terrestrial television“. i.2 ITU-T Recommendation O.153 (1992): “Basic parameters for the measurement of error performance at bit rates below the primary rate“. i.3 ETSI EN 302 550-1-2 (V1.1.1): “Satellite Earth Stations and Systems (SES); Satellite Digital Radio (SDR) Systems; Part 1: Physic
30、al Layer of the Radio Interface; Sub-part 2: Inner Physical Layer Single Carrier Modulation“. i.4 ETSI EN 302 550-1-1 (V1.1.1): “Satellite Earth Stations and Systems (SES); Satellite Digital Radio (SDR) Systems; Part 1: Physical Layer of the Radio Interface; Sub-part 1: Outer Physical Layer“. i.5 ET
31、SI TR 102 525 (V1.1.1): “Satellite Earth Stations and Systems (SES); Satellite Digital Radio (SDR) service; Functionalities, architecture and technologies“. i.6 ETSI TR 102 604: “Satellite Earth Stations and Systems (SES); Satellite Digital Radio (SDR) Systems; Guidelines for the Use of the Physical
32、 Layer Standards“. ETSI ETSI EN 302 550-1-3 V1.1.1 (2010-02)6i.7 ETSI TS 102 551-2 (V2.1.1): “Satellite Earth Stations and Systems (SES); Satellite Digital Radio (SDR) Systems; Inner Physical Layer of the Radio Interface; Part 2: Multiple Carrier Transmission“. 3 Definitions, symbols and abbreviatio
33、ns 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: hierarchical constellation scaling factor: constellation ratio which determines the QAM constellation for the modulation for hierarchical transmission 3.2 Symbols For the purposes of the present d
34、ocument, the following symbols apply: 2k5MHz OFDM with 2k (i.e. 2 048 length) IFFT in 5 MHz channel spacing hierarchical constellation scaling factor 3.3 Abbreviations For the purposes of the present document, the following abbreviations apply: 16QAM 16 Quadrature Amplitude Modulation C-TS Channel T
35、ransport Stream CU Capacity Unit FFT Fast Fourier Transform IFFT Inverse Fast Fourier Transform IPL Inner Physical Layer IPL-MC Inner Physical Layer, Multi Carrier IPL-SC Inner Physical Layer, Single Carrier OFDM Orthogonal Frequency Division Multiplex OPL Outer Physical Layer QPSK Quaternary Phase
36、Shift Keying RF Radio Frequency RFU Reserved for Future Use SDR Satellite Digital RadioXOR eXclusive OR 4 Inner physical layer - Multi Carrier The functionality of the Inner Physical Layer (Multi Carrier), in the following denoted IPL-MC, is to provide a robust modulation scheme for multi carrier mo
37、dulation. The multi carrier modulation is applicable either to satellite or terrestrial transmission. The IPL-MC is embedded between the OPL (C-TS delivery) and the RF frontend (modulation) as depicted in figure 1. ETSI ETSI EN 302 550-1-3 V1.1.1 (2010-02)7Figure 1: General block diagram of the ETSI
38、 SES SDR system concept with selection of IPL-MC The general block diagram of the IPL-MC functionality for modes 2, 2s, 3 and 4 are given in figure 2. Figure 2: Block diagram of the ETSI SES SDR compliant IPL-MC in Mode 2, 2s, 3 and 4 For high robustness in rapidly changing channels or high delay sp
39、read scenarios, three modes (FFT512, FFT1024 and FFT2048) using a high pilot density together with a distinct frequency-domain preamble are introduced. 4.1 Interfacing to OPL (Outer Physical Layer) Its interface to the OPL (Outer Physical Layer) is the C-TS (channel transport stream), which is defin
40、ed in EN 302 550-1-1 i.4. For this special IPL-MC, the parameters which are passed to the OPL are derived within EN 302 550-1-1 i.4. Two types of IPL-MC exist: One providing a single-input C-TS interface, another providing double-input interface to allow hierarchical modulation. In the latter case,
41、both C-TS need to be aligned in time, framing and throughput. If more than one carrier needs to be supported, multiple instances of the IPL-MC need to be instantiated in parallel. The parameters that are passed to the OPL are as follows: IPL-MC frame length in integer number of CU (capacity units);
42、number of inputs (to distinguish between normal and hierarchical transmission). For modes 2, 2s, 3 and 4, one IPL-MC frame is composed of five Phy sections and preceded by one preamble. Their parameters are defined in clause 4.2.2. With these parameters, the exact throughput of the IPL-MC can be der
43、ived in CU per time. The smallest unit to be processed by the IPL-MC is one CU. To be able to benefit from the gain of hybrid configurations (e.g. using IPL-SC together with IPL-MC), it is mandatory to have equal frame lengths on both IPLs. If modes 2, 2s, 3 or 4 of the IPL-MC are used, a joint fram
44、e length of 432 ms is chosen. ETSI ETSI EN 302 550-1-3 V1.1.1 (2010-02)84.2 The profile approach - different multi carrier modes 4.2.1 Profile definition To cope with different design constraints that arise from the possible use scenarios of the IPL-MC, it has been decided within SES SDR to define d
45、ifferent profiles. The main target frequency bands and channel bandwidths are: Table 1: Definition of different profiles Profile name IPL-MC-B IPL-MC-C IPL-MC-D Typical use S-Band SDR L-Band SDR S-Band SDR Supported modes 2 and 2s 3 and 4 3 and 4 Carrier frequency 2,0 GHz to 2,3 GHz 1,4 GHz to 1,5 G
46、Hz 2,0 GHz to 2,3 GHz Channel bandwidth 4,76 MHz 1,536 MHz 1,536 MHz Channel spacing 5 MHz 1,712 MHz 1,712 MHz The present document does not restrict its use to the application scenarios as denoted above. Other frequency bands or channel bandwidths may be used but the parameter selection may not be
47、optimal. Bandwidth flexibility has been introduced to widely scale the modes 2, 2s, 3 or 4 according to different bandwidth requirements. This allows to use modes as follows: Mode 2 (FFT2048, guard interval 1/4): Between 6/9 and 18/9 times the specified bandwidth of 4,755 MHz with stepping of 1/9 of
48、 specified bandwidth, i.e. from 3,17 MHz up to 9,51 MHz in step sizes of 528,3 kHz. Mode 2s (FFT2048, guard interval 1/8): Between 6/10 and 20/10 times the specified bandwidth of 4,755 MHz with stepping of 1/10 of specified bandwidth, i.e. from 2,853 MHz up to 9,51 MHz in step sizes of 475,5 kHz. Mo
49、de 3 (FFT1024, guard interval 1/4): Between 4/6 and 20/6 times the specified bandwidth of 1,531 MHz with stepping of 1/6 of specified bandwidth, i.e. from 1,021 MHz up to 5,105 MHz in step sizes of 255,2 kHz. Mode 4 (FFT512, guard interval 1/4): Between 8/12 and 24/12 times the specified bandwidth of 1,534 MHz with stepping of 1/12 of specified bandwidth, i.e. from 1,022 MHz up to 3,067 MHz in step sizes of 127,8 kHz. This flexibility has been introduced in a very careful way to always ensure interoperability with all specif
