1、 Recommendation ITU-R SA.2045(12/2013)Basic general partitioning and sharing conditions for the band 401-403 MHz for future long-term coordinated use of data collection systems on geostationary and non-geostationary MetSat and Earth exploration-satellite service systemsSA SeriesSpace applications an
2、d meteorologyii Rec. ITU-R SA.2045 Foreword The role of the Radiocommunication 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
3、range on the basis of which Recommendations are adopted. The regulatory and policy 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) IT
4、U-R policy on IPR is described in the Common Patent Policy for ITU-T/ITU-R/ISO/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 Gui
5、delines for Implementation of the Common Patent Policy for ITU-T/ITU-R/ISO/IEC 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, archi
6、val and play-out; film for television BS Broadcasting service (sound) BT Broadcasting 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 appl
7、ications and meteorology SF Frequency sharing and coordination between fixed-satellite 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 Eng
8、lish under the procedure detailed in Resolution ITU-R 1. Electronic Publication 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 SA.2045 1 RECOMMENDATION ITU-R SA.2045 Basic general partit
9、ioning and sharing conditions for the band 401-403 MHz for future long-term coordinated use of data collection systems on geostationary and non-geostationary MetSat and Earth exploration-satellite service systems (2013) Scope This Recommendation provides information on the performance and interferen
10、ce criteria for non-GSO Data Collection Systems (DCS) in the 401-403 MHz. The ITU Radiocommunication Assembly, considering a) that Data Collection Systems (DCS) are operated on geostationary and non-geostationary MetSat and Earth exploration-satellite service (EESS) systems in the frequency band 401
11、-403 MHz; b) that for next generation DCS systems on both geostationary and non-geostationary MetSat and EESS systems, bandwidth requirements have significantly increased; c) that the increased spectrum requirements for both geostationary and non-geostationary MetSat and EESS systems require all ope
12、rators to respect a basic general partitioning of the band 401-403 MHz for current and future DCS systems accompanied by sharing conditions, recommends 1 that operators of current and future DCS systems on geostationary and non-geostationary MetSat and EESS satellites plan frequency use in accordanc
13、e with the basic general partitioning of the band 401-403 MHz as shown in the Annex, taking into account the sharing conditions as detailed in recommends 2 to 7 below; 2 that the band 401.7-402.435 MHz remains available only for DCS on geostationary MetSat systems. However, within this frequency ran
14、ge, the non-geostationary MetSat system Meteor-3M, which is planned for use in the band 401.899-401.998 MHz, will only operate over the territory of the Russian Federation; 3 that the band 402.435-402.850 MHz is used only for DCS on geostationary MetSat systems; 4 that the band 401.1-401.4 MHz is us
15、ed for DCS on geostationary MetSat systems. However, within this frequency range, the bands 401.1-401.2 MHz and 401.3-401.4 MHz can also be used for Global satellite data collection and positioning system (ARGOS) platforms under the following conditions: maximum e.i.r.p. of 3 dBW; maximum number of
16、ARGOS active platforms to be deployed in each of the two sub-bands not to exceed 1 000 within the visibility circle of FY-2 and FYGEOSAT series satellites; maximum duty cycle (ratio of transmission duration over the repetition period) of each platform not to exceed 0.01 (on average 0.6 s over 60 s);
17、 2 Rec. ITU-R SA.2045 5 that the bands 401-401.1 MHz, 401.4-401.7 MHz and 402.850-403 MHz are designated to non-geostationary systems, such as ARGOS. However, the sub-band 401.5-401.7 MHz can also be used by Data collection platform (DCP) GEO systems of the Russian Federation, noting that for the su
18、b-band 401.58-401.7 MHz these systems must be limited to operation over the Russian territory with a maximum e.i.r.p. of 16 dBW; 6 that the band 401.605-401.665 MHz is also designated for use by the Brazilian DCS NGSO over South America; 7 that the band 402.034-402.067 MHz is dedicated to the Intern
19、ational Data Collection Systems (IDCS). Annex Basic general partitioning of the band 401-403 MHz for future long-term coordinated use of DCS systems on geostationary and non-geostationary MetSat and EESS Background on data collection system One of the EESS/MetSat usage comprises the data collection
20、platforms gathering information activity related to the Earth, the environment and scientific application, weather and environment observation. The data which are collected by ground platforms, are sent to the corresponding satellites that retransmit the retrieved information to dedicated earth stat
21、ions. The DCS is particularly useful for the collection of data from remote and inhospitable locations where it may provide the only possibility for data relay. Even so, the system has very many uses in regions with a highly developed infrastructure. The installations required for relay of the data
22、tend to be inexpensive, unobtrusive and normally blend easily into the local environment. There are two kinds of data collection systems: geostationary which usually operate under the MetSat radio service and the non-geostationary systems which usually operate under the EES radio service. For exampl
23、e, geostationary satellites are traditionally operated by meteorological agencies and DCS are provided by several geostationary meteorological satellite operators, giving almost total coverage around the world with the exception of the polar regions. For non-geostationary satellites, one example is
24、the ARGOS satellite-based location and DCS: this system enables scientists to gather information on any platform equipped with an appropriate transmitter, anywhere in the world. ARGOS transmitters messages are recorded by a constellation of satellites carrying ARGOS instruments, and then relayed to
25、dedicated processing centres. The IDCS comprises eleven channels which are reserved for DCP mounted on aircraft, ship, drifting ocean buoy or balloon, to transmit environmental data continuously. The transmissions are received by the nearest geostationary meteorological satellite, relayed to its pri
26、mary ground station and then distributed to the relevant user community. Rec. ITU-R SA.2045 3 Overall usage of the band 401-403 MHz (1)The following conditions contained in recommends 2 are as follows: in the band 401.899-401.998 MHz the non-geostationary MetSat system Meteor-3M will only operate ov
27、er the territory of the Russian Federation. (2)The following conditions contained in recommends 4 are valid for the use of the bands 401.1-401.2 MHz and 401.3-401.4 MHz by ARGOS platforms: maximum e.i.r.p. of 3 dBW; maximum number of ARGOS active platforms to be deployed in each of the two sub-bands
28、 not to exceed 1 000 within the visibility circle of FY-2 and FYGEOSAT series satellites; maximum duty cycle (ratio of transmission duration over the repetition period) of each platform not to exceed 0.01 (on average 0.6 s over 60 s). (3)The following conditions contained in recommends 5 are as foll
29、ows: the band 401.5-401.7 MHz can also be used by DCP GSO systems of the Russian Federation, noting that for the sub-band 401.58-401.7 MHz, these systems must be limited to operation over the Russian territory with a maximum e.i.r.p. of 16 dBW. 401.1 401.2 401 401.3 401.4 401.7 402.034 402.067 402.4
30、35 402.850 ARGOS NGSO NGSO DCP GSO DCP GSO ARGOS NGSO DCP GSO IDCS DCP GSODCP GSO 401.899 ARGOS NGSO(2)ARGOS NGSO(2)403 DCP GSO Basic general partitioning of the band 401-403 MHz for future long-term coordinated use of DCS systems on geostationary and non-geostationary MetSat and EESS systems 401.5 401.58 ARGOS NGSO DCP(3)GSO ARGOS NGSO DCP(3)GSOMETEORNGSO(1)DCP GSO 402.001
