1、 TIA STANDARD Regenerative Satellite Mesh-A (RMS-A) Air Interface - Physical Layer Specification -Part 5: Radio Transmission and Reception TIA-1040.1.05 April 2005 TELECOMMUNICATIONS INDUSTRY ASSOCIATION The Telecommunications Industry Association represents the communications sector of NOTICE TIA E
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16、T SUCH LIMITATIONS. TIA 1040.1.05 1Contents Intellectual Property Rights5 Foreword 5 1 Scope6 2 References6 3 Definitions, symbols and abbreviations .7 3.1 Definitions. 7 3.2 Symbols. 7 3.3 Abbreviations 7 4 Introduction to radio transmission and reception.8 5 Frequency bands and channel arrangement
17、 .9 5.1 Frequency bands . 9 5.2 Downlink channel arrangement 9 5.2.1 Downlink TDM carriers 9 5.3 Uplink channel arrangement. 9 5.3.1 Uplink sub-bands. 9 5.3.2 Uplink FDMA carrier modes 10 5.3.2.1 Uplink allocated bandwidths and configurations . 10 5.3.2.2 Uplink carrier centre frequency 10 6 Stabili
18、ty requirements 13 6.1 Frequency and symbol timing stability 13 6.2 Transmit signal accuracy 13 6.2.1 Uplink input phase non-linearity 14 6.2.2 Uplink input amplitude non-linearity . 14 6.2.3 Uplink output amplitude non-linearity . 15 6.2.4 In-band spurs . 15 6.2.5 Phase noise 15 6.3 Frequency and m
19、ode switching 16 6.3.1 Transmit frequency switching. 16 6.3.2 Receiver carrier mode switching 16 7 Transmitter characteristics .17 7.1 Output power. 17 7.1.1 ST power class. 17 7.1.2 Power control range 17 7.1.3 Off-axis eirp 18 7.1.3.1 Co-polar limits. 18 7.1.3.2 Cross-polar limits 18 7.2 Transmit
20、antenna characteristics. 19 7.2.1 Antenna radiation pattern 19 7.2.2 Transmit polarization 19 7.2.3 Transmit antenna losses 19 7.2.3.1 Wet antenna losses 19 7.2.3.2 Pointing losses . 19 7.2.4 Pointing accuracy 19 7.3 Ramp-up and ramp-down . 20 7.4 Output RF spectrum 21 7.4.1 Emissions due to modulat
21、ion 21 7.4.2 Adjacent channel interference. 21 7.4.3 Carrier-off conditions 21 7.5 Spurious emissions 21 7.5.1 Transmitter spurious emissions. 21 TIA-1040.1.01 2 7.5.2 Off-axis spurious radiation 21 7.5.3 On-axis spurious radiation 22 8 Receiver characteristics22 8.1 Receive antenna characteristics
22、22 8.1.1 Receiver figure of merit 22 8.1.2 Receiver discrimination 22 8.1.3 Receive polarization 23 8.1.4 Receive antenna losses 23 8.1.4.1 Wet antenna losses 23 8.1.4.2 Depointing losses. 23 8.2 Receiver performance . 23 8.2.1 Definitions . 23 8.2.1.1 Received Isotropic Power (RIP) 23 8.2.1.2 Packe
23、t Loss Rate (PLR) 23 8.2.2 Receiver sensitivity . 23 8.2.2.1 Receiver packet loss rate for PTP transmissions 23 8.2.2.2 Receiver packet loss rate for Broadcast transmissions. 23 8.2.2.3 Receiver dynamic range 24 8.3 Receive signal quality. 24 8.3.1 Beacon measurements. 24 8.3.2 PTP measurements 24 A
24、nnex A (normative): Downlink telemetry signals.25 A.1 General .25 A.2 Downlink telemetry signals25 Annex B (informative): Bibliography.26 History27 TIA 1040.1.05 3Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The informat
25、ion 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 ETS
26、I 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
27、314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This Technical Specification (TS) has been produced by ETSI Technical Committee Satellite Earth Stations and Systems (SES). The present document is part 5 of a multi-part deli
28、verable covering the BSM Regenerative Satellite Mesh - A (RSM-A); air interface; Physical layer specification, as identified below: Part 1: “General description“; Part 2: “Frame structure“; Part 3: “Channel coding“; Part 4: “Modulation“; Part 5: “Radio transmission and reception“; Part 6: “Radio lin
29、k control“; Part 7: “Synchronization“. TIA-1040.1.01 4 1 Scope The present document defines the Radio Frequency (RF) requirements for the Satellite Terminal (ST) transceiver of the Regenerative Satellite Mesh - A (RSM-A); Air interface operating in the Fixed Satellite System (FSS) allocations at Ka-
30、band as follows: ST reception is in the Fixed Satellite Service (FSS) frequency ranges from 17,70 GHz to 19,70 GHz and from 19,70 GHz to 20,20 GHz; ST transmission is in the frequency ranges allocated to FSS from 27,50 GHz to 29,50 GHz and from 29,50 GHz to 30,00 GHz. Requirements are defined for tw
31、o categories of parameters: those that are required to provide compatibility between the radio channels, connected either to separate or common antennas, that are used in the system. This category also includes parameters providing compatibility with existing systems in the same or adjacent frequenc
32、y bands; those that define the transmission quality of the system. These requirements apply to all types of ST that transmit a single modulated carrier, including STs with an antenna diameter greater than 1,8 m (or equivalent corresponding aperture). The technical requirements of the present documen
33、t apply under the environmental profile for operation of the equipment, which shall be declared by the manufacturer. The equipment shall comply with all the technical requirements of the present document at all times when operating within the boundary limits of the declared operational environmental
34、 profile. The environmental profile for operation of the equipment shall include the ranges of humidity, temperature and supply voltage. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. References are either
35、 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. For a non-specific reference, the latest version applies. Referenced documents which are not found to be publicly available in the expec
36、ted location might be found at http:/docbox.etsi.org/Reference. 1 ETSI EN 301 459 (V1.2.1): “Satellite Earth Stations and Systems (SES); Harmonized EN for Satellite Interactive Terminals (SIT) and Satellite User Terminals (SUT) transmitting towards satellites in geostationary orbit in the 29,5 to 30
37、,0 GHz frequency bands covering essential requirements under article 3.2 of the R Guidance for general purpose earth stations transmitting in the 5,7 GHz to 30,0 GHz frequency bands towards geostationary satellites and not covered by other ETSI specifications or standards“. TIA 1040.1.05 53 Definiti
38、ons, symbols and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: allocated bandwidth: width of the frequency band within 1,25 (symbol rate/2) of the carrier frequency carrier transmission bandwidth: width of the frequency band within
39、 1,4 (symbol rate/2) of the carrier frequency necessary bandwidth: width of the frequency band which is just sufficient to ensure the transmission of information at the rate and with the quality required under specified conditions out-of-band emission: emission on a frequency or frequencies immediat
40、ely outside the necessary bandwidth which results from the modulation process, but excluding spurious emissions Received Isotropic Power (RIP): power that would be received by an isotropic antenna Packet Loss Rate (PLR): ratio of RSM-A packets that are lost relative to total number of RSM-A packets
41、received NOTE: The PLR is measured after Forward Error Correction (FEC). satellite payload: part of the satellite that provides air interface functions NOTE: The satellite payload operates as a packet switch that provides direct unicast and multicast communication between STs at the link layer. Sate
42、llite Terminal (ST): terminal installed in the user premises spurious emission: emission on a frequency or frequencies which are outside the necessary bandwidth and the level of which may be reduced without affecting the corresponding transmission of information NOTE: Spurious emissions include harm
43、onic emissions, parasitic emissions, intermodulation products and frequency conversion products, but exclude out-of-band emissions. unwanted emissions: consist of spurious emissions and out-of-band emissions 3.2 Symbols For the purposes of the present document, the following symbols apply: kph klilo
44、metre per hour ms millisecond (10-3second) s microsecond (10-6second) 3.3 Abbreviations For the purposes of the present document, the following abbreviations apply: ASK Amplitude Shift Keyed C/N Carrier to Noise C/No Carrier to Noise density FDMA Frequency Division Multiple Access FEC Forward Error
45、Correction FSS Fixed Satellite Service G/T Gain/Temperature HPA High Power Amplifier I In phase kbps kilo bits per second (thousands of bits per second) LHCP Left Hand Circular Polarization Mbps Mega bits per second (millions of bits per second) TIA-1040.1.01 6 PHY PHYsical PLR Packet Loss Rate p-p
46、peak-to-peakPTP Point-to-Point Q Quadrature RF Radio Frequency RHCP Right Hand Circular Polarization RIP Received Isotropic Power RSM Regenerative Satellite Mesh Rx Receive SLC Satellite Link Control ST Satellite Terminal TDM Time Division Multiplex Tx Transmit ULPC UpLink Power Control 4 Introducti
47、on to radio transmission and reception The functions of the physical layer are different for the uplink and downlink. The major functions are illustrated in figure 4. UPLINK DOWNLINKPart 3: Channel coding Part 2: Frame structure Part 4: Modulation Part 5: Radio transmission and reception tnPart 7: S
48、ynchronization Block interleavingInner coding (convolutional)Downlink burstbuildingDownlink modulation (QPSK)ST receiverScramblingAssemble packetsinto code blocksOuter coding (Reed-Solomon)No interleavingInner coding(hamming)Uplink burstbuildingUplink modulation(OQPSK)Part6:Radio linkcontrolScrambli
49、ngTiming and frequency controlST transmitterAssemble packetsinto code blocksOuter coding (Reed-Solomon)Figure 4: Physical layer functions The present document describes the ST radio transmission and reception functions - this group of functions is highlighted in figure 4. Clause 5 describes the frequency bands and channel arrangements for the uplink and the downlink. TIA 1040.1.05 7Clause 6 describes the ST stability requirements. Clause 7 describes the ST transmitter requirements. Clause 8 describes the ST receiver requirements. 5 Frequency bands and channel arrangem
