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1、JOINT INTERIM STANDARD GMR-2 Series 05 (05.005) Radio Interface Physical Layer Specifications - Radio Transmission and Reception IS-J-STD-781-Series 5 NOVEMBER 2001 TELECOMMUNICATIONS INDUSTRY ASSOCIATION Reprwmting the telennimunicationv indusiry in aysoriation with the Electronic Indusiria Allianc
2、e Elsctron ic Ind wtries. Alliance EUROPEAN TELECOMMUNICATIONS STANDARDS INSTITUTE Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 03:06:55 MDTNo reproduction or networking permitt
3、ed without license from IHS -,-,- NOTICE FROM THE TELECOMMUNICATIONS INDUSTRY ASSOCIATION TIA/EIA Engineering Standards and hblications are designed to serve the public interest through eliminating misunderstandings between manufacturers and purchasers, facilitating interchangeability and improvemen
4、t of products, and assisting the purchaser in selecting and obtaining with minimum delay the proper product for his particular need. Existence of such Standards and hblications shall not in any respect preclude any member or nonmember of TIA/EIA from manufacturing or selling products not conforming
5、to such Standards and hblications, nor shall the existence of such Standards and hblications preclude their voluntary use by those other than TIA/EIA members, whether the standard is to be used either domestically or internationally. Standards and hblications are adopted by TIA/EIA in accordance wit
6、h the American National Standards Institute (ANSI) patent policy. By such action, TIA/EIA does not assume any liability to any patent owner, nor does it assume any obligation whatever to parties adopting the Standard or hblication. Note: The users attention is called to the possibiliS, that complian
7、ce with this document may require use o f one or more inventions covered by patent rights. By publication o f this standard, Interim Standard, or TSB, no position is taken with respect to the validio o f those claims or o f any patent rights in connection therewith. The patent holder) so far identif
8、ied have, however, filed statements o f willingness to grant licenses under those rights on reasonable and nondiscriminatory terms and conditions to applicants desiring to obtain such licenses. Details may be obtained from the standards developer. TIA/EIA AND JOINT INTERIM STANDARDS Joint Interim St
9、andards contain information deemed to be of technical value to the industry, and are published at the request of the originating Committee without necessarily following the rigorous public review and resolution of comments which is a procedural part of the development of an American National Standar
10、d (ANS). Interim Standards should be reviewed on a periodic basis by the formulating Committee and a decision made on whether to proceed to develop a TIA/EIA Standard on this subject. Interim Standards must be upgraded or cancelled by the Committee before the end of their third year of existence. hb
11、lication of this Joint Interim Standard for trial use and comment has been approved by the Telecommunications Industry Association. Distribution of this Joint Interim Standard for comment shall not continue beyond 36 months from the date of publication. It is expected that following this 36 month pe
12、riod, this Joint Interim Standard, revised as necessary, will be submitted to the American National Standards Institute for approval as an American National Standard. Suggestions for revision should be directed to: Standards the second digit (m) is incremented for all other types of changes, i.e. te
13、chnical enhancements, corrections, updates, etc. Intellectual Property Rights The users attention is called to the possibility that compliance with this Interim Standard may require use of an invention covered by patent rights. By publication of this Interim Standard, no position is talten with resp
14、ect to the scope or validity of such patent claims or of any patent rights in connection therewith. One or more parties have notified the TIA that they hold patent rights applicable to this Interim Standard. Each patent holder has, however, filed a statement of willingness to grant a license under t
15、hese rights on reasonable and nondiscriminatory terms and conditions to applicants desiring to obtain such licenses. A copy of the statement may be obtained from the TIA. Radio Transmission and Reception vii Copyright Telecommunications Industry Association Provided by IHS under license with EIALice
16、nsee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 03:06:55 MDTNo reproduction or networking permitted without license from IHS -,-,- TINEIA IS-781.05.005 viii Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111
17、111001, User=Wing, Bernie Not for Resale, 03/29/2007 03:06:55 MDTNo reproduction or networking permitted without license from IHS -,-,- TINEIA IS-781.05.005 1 Scope This specification defines the requirements for the GMR-2 Mobile Earth Station-to-satellite terminal uplinlddownlink operating in the 1
18、500/1600 MHz bands. Operating frequencies for the GMR-2 Ground Terminal (Gateway or NCC) -to-Satellite Terminal (ST) uplinlddownlink are not specified , however, for ease of understanding, the present document describes the requirements for a GMR-2 Ground Terminal-to-Satellite Terminal uplinlddownli
19、nk operating in the 3000/6000 MHz C-Band. Requirements are defined for two categories of parameters: a) Those that are required to provide compatibility between the Mobile Earth Station, ground terminal, and satellite channels, connected either to separate or common antennas, that are used in the sy
20、stem. This category also includes parameters providing compatibility with existing systems in adjacent frequency bands; b) Those that define the transmission quality of the system. This standard defines RF characteristics for the Mobile Earth Station (MES), satellite terminal (ST), and ground termin
21、al (GT- Gateway or NCC). Unless otherwise stated, the requirements defined in this standard apply to the full range of environmental conditions specified for the equipment (see Section A.4). 2 Refe re nces The following documents contain provisions which, through reference in this text, constitute p
22、rovisions of the present document. 0 References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific. 0 For a specific reference, subsequent revisions do not apply. 0 For a non-specific reference, subsequent revisions do apply. 0 A non-specifi
23、c reference to an ETS shall also be taken to refer to later versions published as an EN with the same number. il GMR-2 01,004 (TS 101 377-01-01): “GEO-Mobile Radio interface specifications: Abbreviations and acronyms“ Note: This document is not yet published. GMR-2 05.001 (TS 101 377-05-01): “GEO-Mo
24、bile Radio interface specifications: Physical Layer on the Radio Path“ Note: This document is not yet published. GMR-2 05.004 (TS 101 377-05-04): “GEO-Mobile Radio interface specifications: Modulation“ Note: This document is not yet published. GMR-2 05.008 (TS 101 377-05-06): “GEO-Mobile Radio inter
25、face specifications: Radio Subsystem Link Control Note: This document is not yet published. GMR-2 05.010 (TS 101 377-05-07): “GEO-Mobile Radio interface specifications: Radio Subsystem Synchronization Note: This document is not yet published. 61 CCITT Recommendation O. 153: “Basic parameters for the
26、 measurement of error performance at bit rates below the primary rate“ 71 IEEE Std. 149- 1979 “Standard Test Procedure for Antennas“ SI IEC Publication 68-2-36 21 31 41 51 3 Abbreviations Abbreviations used in this specification are listed in the GMR-2 acronym list GMR-2 01.004 i 4 Frequency Bands a
27、nd Channel Arrangement The GMR-2 system is required to operate, at least, in the following frequency bands with polarization schemes as specified: Radio Transmission and Reception 1 Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111
28、001, User=Wing, Bernie Not for Resale, 03/29/2007 03:06:55 MDTNo reproduction or networking permitted without license from IHS -,-,- TINEIA IS-781.05.005 1525.0 - 1559.0 MHz Satellite Transmit, Mobile Earth Station receive (forward link - downlink) Right Hand Circular Polarization, as defined by IEE
29、E Std. 149-1979 1626.5 - 1660.5 MHz Mobile Earth Station Transmit, Satellite Receive (return link - uplink) Right Hand Circular Polarization, as defined by IEEE Std. 149-1979 3400.0 - 3700.0 MHz Satellite Transmit, Ground Terminal Receive (return link - downlink) Linear Vertical Polarization, as def
30、med by IEEE Std. 149-1979 6425.0 - 6725.0 MHz Ground Terminal Transmit, Satellite Receive (forward link - uplink) Linear Horizontal Polarization, as defined by IEEE Std. 149-1979 The carrier spacing is 200 1cHz on the forward link. The carrier spacing is 50 1cHz on the return link. The carrier frequ
31、ency is designated by the absolute radio frequency channel number (ARFCN) defined as nL for the L-Band channels and n, for the C-Band channels. For the forward links, definition of the carrier frequency also requires specification of the Frequency Offset (FO) parameter which identifies either the ba
32、seline frequency plan (FO = O), or the offset frequency plan (FO = i), where the offset plan is obtained by shifting the baseline plan by 75 l and where units for all frequencies are in MHz. The L-Band and C-Band frequency plans are graphically depicted in Figure 4-1 through Figure 4-6: o. o I I I m
33、 1525.1 1525.3 1558.9 F(MHz) (n L=o) (n L=l) (n ,=169) Figure 4-1: L-Band Downlink Frequency Plan for FO = O 2 Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 03:06:55 MDTNo reprod
34、uction or networking permitted without license from IHS -,-,- TINEIA IS-781.05.005 1525.175 1525.375 1558.775 F(MW (nL =O) (nL=V (nL=168) Figure 4-2: L-Band Downlink Frequency Plan for FO = 1 (n,=169) - 1626.575 1626.675 1626.775 1626.875 (TN=1,5) (TN=3,7) (TN=1,5) (TN=3,7) 1660.375 1660.475 (TN=I ,
35、5) (TN=3,7) Figure 4-3: L-Band Uplink Frequency Plan for FO = O (n, = 168) (n, =O) (n, =I) - - o (TN=0,4) I (TN=2,6) I (TN=0,4) I (TN=2,6) I (TN=0,4) I (TN=2,6) I I I I I I I 1660.25 1660.35 (TN=1,5) (TN=3,7) (TN=I ,5) (TN=3,7) (TN=1,5) (TN=3,7) 1626.65 1626.75 1626.85 1626.95 Figure 4-4: L-Band Upl
36、ink Frequency Plan for FO = 1 Radio Transmission and Reception 3 Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 03:06:55 MDTNo reproduction or networking permitted without license
37、 from IHS -,-,- TINEIA IS-781.05.005 6425.1 6425.3 (%=o (nc =I 6724.9 F(MHz) ( nc= 1499) Figure 4-5: C-Band Uplink Frequency Plan ( nL =1499) (n, =O) (nL=1) 0 - - (TN=0,4) I (TN=2,6) I (TN=0,4) I (TN=2,6) I (TN=0,4) I (TN=2,6) I 3400.075 3400.1 75 3400.275 3400.375 3699.875 3699.975 (TN=I ,5) (TN=3,
38、7) VN=I ,5) (TN=3,7) (TN=I ,5) (TN=3,7) Figure 4-6: C-Band Downlink Frequency Plan 5 Reference con fig u ra t i on The reference configuration for the radio subsystem is described in GMR-2 05.001 2. 6 Transmitter characteristics Throughout this section, unless otherwise stated, the requirements for
39、mobile earth stations (MES) are given in terms of power levels at the antenna connector of the equipment. For mobile user terminal equipment with integral antenna only, a reference antenna with O dBi gain shall be assumed. For fixed Mobile Earth Stations, Ground Terminals, and satellite transmitters
40、 the requirements are specified in terms of EIRP (Effective Isotropic Radiated Power). The term transmit power refers to the measure of the power when averaged over the useful part of the burst (See Section A.2). The term peak hold refers to a measurement where the maximum is taken over a sufficient
41、 time that the power level would not significantly increase if the holding time were longer. 6.1 Transmit Power 6.1 .I 6.1.1.1 Mobile Terminal Mobile Earth Station (MES) The MES output power and corresponding power class shall be as defined in Table 6.1-1. 4 Copyright Telecommunications Industry Ass
42、ociation Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 03:06:55 MDTNo reproduction or networking permitted without license from IHS -,-,- TINEIA IS-781.05.005 Power Class 2 Maximum Output Tolerance (dB) Power for Conditions Norm
43、al Extreme 39 dBm +I 5, - 0.0 +I 5, - 1.5 3 Power Class 4 shall correspond to a handset. The handset shall have 2.0 dBi antenna gain, and 30 days. The differential burst EIRP tolerance between two different control channels, after initial alignment to the same transmit level, shall be 30 days. Furth
44、ermore, the output EIRP actually transmitted by the NCC Terminal at each power control level shall form a monotonic sequence, and the interval between power steps shall be 0.5 dB + 0.2 dB. 6.2 Output RF Spectrum The specifications contained in this section apply to the Mobile Earth Station, the Gate
45、way Terminal, and the NCC Terminal. Due to the burst nature of the signal, the output RF spectrum results from two effects: a) the modulation process; b) the power ramping up and down (switching transients). The two effects are specified separately; the measurement method used to analyze separately
46、those two effects is based on the “ringing effect” during the transients, and is a measurement in the time domain, at each point in frequency. 6.2.1 Spectrum Due to the Modulation and Wide Band Noise The output RF modulation spectrum is specified in Tables 6.2-1 and 6.2-2. A mask representation of t
47、his specification is shown in Section A. 1. This mask applies for all RF channels mentioned in Section 4. The specification applies to the entire transmit band and up to 2 MHz on either side. a) Mobile Earth Station The figures in Table 6.2-1, at the listed frequencies from the carrier (in I b) a co
48、ntinuous, static sine wave signal at frequency fi and a level of 49 dBpV (emf) e., -64 dBm); c) any 148-bits subsequent of the 5 1 1-bits pseudo-random sequence, defined in CCITT Recommendation O. 153 fascicle IV.4, modulating a signal at frequency f2 and a level of 49 dBpV (emf) (Le., -64 dBm) such that fo = 2f1 - f2 and If2 - fil = 800 laz. Radio Transmission and Reception 19 Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 03:06:55 MDTNo reproduct