1、 ETSI EN 302 550-1-2 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 2: Inner Physical Layer Single Carrier ModulationETSI ETSI EN 302 550-1-2 V1.1.1
2、(2010-02)2Reference DEN/SES-00312-1-2 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 Gras
3、se (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 r
4、eference 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
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6、ight 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 a
7、nd 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
8、Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI EN 302 550-1-2 V1.1.1 (2010-02)3Contents Intellectual Property Rights 4g3Foreword . 4g3Introduction 4g31 Scope 5g32 References 5g32.1 Normative references . 5g32.2 Informative referen
9、ces 5g33 Definitions, symbols and abbreviations . 6g33.1 Definitions 6g33.2 Symbols 6g33.3 Abbreviations . 6g34 Inner physical layer - Single Carrier 6g34.1 Interfacing to OPL (Outer Physical Layer) 7g34.2 The profile approach - different single carrier modes 8g34.3 Generation of one Phy section 8g3
10、4.3.1 Overview 8g34.3.1.1 Overview of mode 1 9g34.3.1.2 Overview of mode 2 10g34.3.2 IPL-SC signalling and padding . 10g34.3.3 Energy dispersal (scrambling) 11g34.3.4 Preamble insertion 11g34.3.4.1 Mode 1: Preamble choice 11g34.3.4.2 Mode 2: Preamble choice 12g34.4 Bit mapping to constellation . 13g
11、34.4.1 QPSK Modulation 13g34.4.2 8PSK Modulation . 13g34.4.3 16APSK Modulation. 14g34.5 Pulse shaping 14g35 Parameter selection. 15g35.1 Example 1: profile IPL-SC-A: symbol rate of 4,31 Msps 15g35.2 Example 2: profile IPL-SC-A: symbol rate of 10,87 Msps 16g35.3 Example 3: profile IPL-SC-B: symbol ra
12、te of 1,84 Msps 17g35.4 Example 4: profile IPL-SC-B: symbol rate of 1,49 Msps 17g3History 18g3ETSI ETSI EN 302 550-1-2 V1.1.1 (2010-02)4Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these ess
13、ential 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 ETSI Secretariat. Latest updat
14、es 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 000 314 (or the updates on the
15、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, sub-part 2 of a multi-part de
16、liverable. 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 endorsement of this EN (dop
17、/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 and technologies of such syste
18、ms 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 physical layer with single
19、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 single carrier modulation. Th
20、e inner physical layer with multi carrier modulation is specified in EN 302 550-1-3 i.3, and the outer physical layer in EN 305 550-1-1 i.4. Guidelines for using the physical layer standard can be found in TR 102 604 i.6. The physical layer specifications have previously been published as “Technical
21、 Specification (TS)“ type ETSI deliverables. The present document supersedes TS 102 551-1 i.7 and is recommended for new implementations. The functional difference between the previous TS 102 551-1 i.7 and the present document is that the exclusion of the IPL-MC Mode 1 is taken into account. ETSI ET
22、SI EN 302 550-1-2 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 single carrier modulation. It allows implementing this part of the system in an interoperable way. 2 References Referen
23、ces 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 and only in the following cases: - if it
24、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 might be found at http:/docbox.etsi.org/Refer
25、ence. 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 document. For dated references, only the edi
26、tion 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 document but they assist the user with regard t
27、o a particular subject area. For non-specific references, the latest version of the referenced document (including any amendments) applies. i.1 ETSI EN 302 307 (V1.1.1): “Digital Video Broadcasting (DVB); Second generation framing structure, channel coding and modulation systems for Broadcasting, In
28、teractive Services, News Gathering and other broadband satellite applications“. 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 302 550-1-3: “Satellite Earth Stations and Systems (SES); Satellite Digi
29、tal Radio (SDR) Systems; Part 1: Physical Layer of the Radio Interface; Sub-part 3: Inner Physical Layer Multi Carrier Modulation“. i.4 ETSI EN 302 550-1-1: “Satellite Earth Stations and Systems (SES); Satellite Digital Radio (SDR) Systems; Part 1: Physical Layer of the Radio Interface; Sub-part 1:
30、Outer Physical Layer“. i.5 ETSI 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; Guideline
31、s for the use of the physical layer standards“. ETSI ETSI EN 302 550-1-2 V1.1.1 (2010-02)6i.7 ETSI TS 102 551-1 (V1.1.1): “Satellite Earth Stations and Systems (SES); Satellite Digital Radio (SDR) Systems; Inner Physical Layer of the Radio Interface; Part 1: Single Carrier Transmission“. 3 Definitio
32、ns, symbols and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: floor function: function that rounds number down, towards zero, to the nearest integer 3.2 Symbols For the purposes of the present document, the following symbols apply:
33、 roll off factor 3.3 Abbreviations For the purposes of the present document, the following abbreviations apply: 16APSK 16 Amplitude and Phase Shift Keying 8PSK 8 Phase Shift Keying BW BandWidth C/N Carrier to Noise ratio C-TS Channel Transport Stream CU Capacity Unit DVB Digital Video Broadcasting I
34、 In-phase IPL Inner Physical Layer IPL-MC Inner Physical Layer, Multi Carrier IPL-SC Inner Physical Layer, Single Carrier ISI Inter Symbol Interference ksps kilo symbols per second LSB Least Significant BitMSB Most Significant Bit Msps Mega symbols per second OPL Outer Physical Layer Q Quadrature QP
35、SK Quaternary Phase Shift Keying RF Radio Frequency RFU Reserved for Future Use SDR Satellite Digital RadioS-TS Service Transport Stream XOR eXclusive OR 4 Inner physical layer - Single Carrier The functionality of the Inner Physical Layer (Single Carrier), in the following denoted IPL-SC, is to pro
36、vide a robust modulation scheme for single carrier transmissions. The single carrier modulation is mainly applicable to satellite signal transmission but may be reused in other transmission environments. However, certain parameters are especially designed and optimized for satellite requirements. Th
37、e IPL-SC is embedded between the OPL (C-TS delivery) and the RF frontend (modulation) as depicted in figure 1. ETSI ETSI EN 302 550-1-2 V1.1.1 (2010-02)7Figure 1: General block diagram of the ETSI SES SDR system concept with selection of IPL-SC The general block diagram of the IPL-SC functionality i
38、s given in figure 2. Please notify that the generation of each Phy section can be handled individually (dashed box), whereas rolloff filtering is applied to the stream of mapped symbols of many Phy section (due to its dispersive nature). Figure 2: Block diagram of the ETSI SES SDR compliant IPL-SC 4
39、.1 Interfacing to OPL (Outer Physical Layer) Its interface to the OPL (Outer Physical Layer) is the C-TS (channel transport stream), which is defined in EN 302 550-1-1 i.4. For this special IPL-SC, the parameters which are passed to the OPL are derived within EN 302 550-1-1 i.4. This IPL-SC provides
40、 an input for only one single C-TS and generates the signal for one RF carrier. If more than one carrier needs to be supported, multiple instances of the IPL-SC need to be instantiated in parallel. The parameters that are passed to the OPL are as follows: frame length in integer number of CU (capaci
41、ty units). One IPL-SC frame is composed by a number of Phy sections. Their parameters are denoted in clause 5. As different modes are distinguished (see clause 4.3), the interfacing to the OPL is also slightly different for the two modes: For mode 1, it is mandatory to have integer numbers of CU whi
42、ch can be divided without remainder by 2 (for QPSK), by 3 (for 8PSK) and by 4 (for 16APSK). Other numbers of CU lead to Phy sections that miss some CU, and non-periodic preamble structure would be introduced. For mode 2, it is desirable to have integer numbers of CU which can be divided without rema
43、inder by 2 (for QPSK), by 3 (for 8PSK) and by 4 (for 16APSK). Other numbers of CU lead to non-periodic preamble structure for the different modulation orders. Examples for a reasonable choice of parameters are given in clause 5. With these parameters, the exact throughput of the IPL-SC can be derive
44、d in CU per time. The smallest unit to be processed by the IPL-SC 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. ETSI ETSI EN 302 550-1-2 V1.1.1 (2010-02)8If modes 2, 2s, 3 or
45、 4 of the IPL-MC i.3 were used, the joint frame length of 432 ms is chosen for the IPL-MC frame length. 4.2 The profile approach - different single carrier modes To cope with different design constraints that arise from the possible use scenarios of the IPL-SC, two modes (denoted mode 1 and mode 2)
46、are defined which use a different share of pilots. These modes are associated to profiles that are distinguished by their symbol rate and number of capacity units per inserted preamble, so that their adaptation to different channel bandwidths is easily possible. Profile IPL-SC-A is related to mode 1
47、, and IPL-SC-B is related to mode 2, respectively. For each profile, two examples are given. To comply with the different profiles, profile IPL-SC-A needs to be capable to work with all symbol rates ranging from 3 Msps up to 12 Msps. A granularity (or step-size) of 88 ksps for the choice of symbol r
48、ates is provided in mode 1. If compliance with profile IPL-SC-B is desired, symbol rates ranging from 1 Msps up to 3 Msps need to be supported. A granularity (or step-size) of 5 ksps for the choice of symbol rates is provided in mode 2. The main target frequency bands and channel bandwidths are: Tab
49、le 1: Different examples for the two profiles IPL-SC-A and IPL-SC-B S-Band 4,31 Msps L-Band 10,87 Msps L-Band 1,84 Msps L-Band or S-Band 1,49 Msps Profile name IPL-SC-A IPL-SC-A IPL-SC-B IPL-SC-B Supported modes 1 1 2 2 Carrier frequency 2,0 GHz to 2,3 GHz 1,4 GHz to 1,5 GHz 1,4 GHz to 1,5 GHz 1,4 GHz to 1,5 GHz 2,0 GHz to 2,3 GHz Channel bandwidth 4,96 MHz 12,5 MHz 2,12 MHz 1,71 MHz Symbol rate 4,31 Msps 10,87 Msps 1,84 Msps 1,49 Msps min/max symbol rate 3 Msps/12 Msps 3 Msps / 12 Msps 1 Msps / 3 Msps 1 Msps / 3 Msps IPL-SC f
