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UIT-R SG04

Services par satellite

Resultats:205 documents
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Contributions  Documents / Contributions
 
Numéro 
Date Source Titre Questions
[ 105 ]  
(Rev.1-2) 
2009-09-18 WP 4A   Draft new Recommendation ITU-R S.[IMT-PFD] - Methodologies for determining whether an IMT station at a given location operating in the band 3 400-3 600 MHz would transmit without exceeding the power flux-density limits in Nos. 5.430A, 5.432A, 5.432B and 5.433A of the Radio Regulations     N/A  
[ 104 ]  
(Rev.1) 
2009-09-18 WP 4A   Draft revision of Recommendation ITU-R S.465-5 - Reference earth-station radiation pattern for use in coordination and interference assessment in the frequency range 2 to about 30 GHz     N/A  
[ 103 ]  
 
2009-09-18 WP 4A   Suppression of Recommendation ITU-R S.727-2 - Cross-polarization isolation from very small aperture terminals (VSATs)     N/A  
[ 102 ]  
(Rev.1) 
2009-09-18 WP 4A   Draft new Recommendation ITU-R S.[CSREF-PATT] - Alternative reference earth-station radiation pattern for antennas used with satellites in the geostationary-satellite orbit for use in coordination and/or interference assessment in the frequency range from 2 to 31 GHz     N/A  
[ 101 ]  
(Rev.1) 
2009-09-15 WP 4B   Draft revision of Recommendation ITU R S.1521 - Allowable error performance for a hypothetical reference digital path based on synchronous digital hierarchy     75-3/4  
[ 100 ]  
 
2009-09-11 WP 4C   Draft new Recommendation ITU-R M.[CHAR-RX3] - Characteristics and protection criteria for receiving earth stations in the radionavigation-satellite service (space-to-Earth) operating in the band 1 164-1 215 MHz     288/4, 217-2/4  
[ 99 ]  
 
2009-09-11 WP 4C   Draft new Recommendation ITU-R M.[1479_NEW] - Characteristics, performance requirements and protection criteria for receiving stations of the radionavigation-satellite service (space-to-space) operating in the frequency bands 1 164-1 215 MHz, 1 215-1 300 MHz and 1 559-1 610 MHz     288/4, 217-2/4  
[ 98 ]  
 
2009-09-11 WP 4C   Draft new Recommendation ITU-R M.[1477_NEW] - Characteristics and protection criteria for receiving earth stations in the radionavigation-satellite service (space-to-Earth) and receivers in the aeronautical radionavigation service operating in the band 1 559-1 610 MHz     288/4, 217-2/4  
[ 97 ]  
 
2009-09-11 WP 4C   Draft new Recommendation ITU-R M.[1088_NEW] - Characteristics and protection criteria for receiving earth stations in the radionavigation-satellite service (space-to-Earth) operating in the band 1 215-1 300 MHz     288/4, 217-2/4  
[ 96 ]  
 
2009-09-11 WP 4C   Draft new Recommendation ITU-R M.[RNSS_GUIDE] - Guidance on ITU-R Recommendations related to systems and networks in the radionavigation-satellite service operating in the frequency bands 1 164-1 215 MHz, 1 215-1 300 MHz, 1 559-1 610 MHz, 5 000-5 010 MHz and 5 010-5 030 MHz     288/4, 217-2/4  
[ 95 ]  
 
2009-09-09 WP 4C   Draft new Report ITU-R M.[REP-MOBDIS] - Use and examples of mobile-satellite service systems for relief operation in the event of natural disasters and similar emergencies     286/4, 227/4  
[ 94 ]  
(Rev.1) 
2009-09-09 WP 4C   Draft new Recommendation ITU-R M.[MOBDIS] - Use of mobile-satellite service (MSS) in disaster response and relief     286/4, 227/4  
[ 93 ]  
 
2009-08-10 ETSI   Liaison statement to ITU-R Study Group 4, Working Parties 4C and 5D - Information on standards related to the satellite component of IMT (SRI-H)     N/A  
[ 92 ]  
 
2009-07-27 Chairmen, SGs 4 & 5   Result of the proposed suppression of Recommendation ITU-R SF.675     N/A  
[ 91 ]  
 
2009-07-01 Director, BR   World Telecommunication Policy Forum 2009 (WTPF-09)     N/A  
[ 90 ]  
 
2009-06-23 Director, BR   Summary notes on the BR workshop on the efficient use of the spectrum/orbit resource (Geneva, Switzerland, 6 May 2009)     N/A  
[ 89 ]  
 
2009-06-11 WP 4B   Draft new Report ITU-R S.[TCPSAT] - Transmission control protocol (TCP) over satellite networks     263-1/4  
[ 88 ]  
 
2009-06-11 WP 4C   Note to Study Group 4 - Editorial revision of Recommendations ITU-R M.1184-2, ITU-R M.1343-1 and ITU-R M.1480     N/A  
[ 87 ]  
 
2009-06-11 WP 4C   Draft revision of Question ITU-R 83-5/4 - Efficient use of the radio spectrum and frequency sharing within the mobile-satellite service     83-5/4  
[ 86 ]  
 
2009-06-11 WP 4C   Note to Study Group 4 - Revision of ITU-R Recommendations     N/A  
[ 85 ]  
 
2009-06-09 WP 4C   Draft new Recommendation ITU-R M.[1457-SAT] - Detailed specifications of the radio interfaces for the satellite component of International Mobile Telecommunications-2000 (IMT-2000)     N/A  
[ 84 ]  
 
2009-06-09 WP 4B   Draft revision of Recommendation ITU-R S.1711 - Performance enhancements of transmission control protocol over satellite networks     263-1/4  
[ 83 ]  
 
2009-06-09 WP 4A   Draft revision of Recommendation ITU-R S.1673 - Methodologies for the calculation of the worst-case interference levels from a non-geostationary HEO-type fixed-satellite service system into geostationary fixed-satellite service satellite networks operating in the 10 to 30 GHz frequency bands     N/A  
[ 82 ]  
 
2009-06-09 SG 6   Liaison statement to Study Group 4 - Comments on the proposed treatment of Recommendations of former Working Party 6S     N/A  
[ 81 ]  
 
2009-05-25 WP 4B   Draft new Question ITU-R [HYBRID]/4 - System architecture and performance aspects on hybrid satellite and terrestrial systems     N/A  
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