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ITU-R R23-WP4C

Efficient Orbit/Spectrum Utilization for MSS and RDSS

Results:59 total items.
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Contributions  [ AI/Question: 1.11 ]   Documents / Contributions
 
Number 
Title Source AI/Question
Date
[ 523 ]  
 
Proposed modifications to the working document regarding WRC-27 agenda item 1.11     France   AI1.11   2025-10-03
[ 502 ]  
 
Working document regarding WRC-27 agenda item 1.11 - Space-to-space links in the frequency bands 1 518-1 544 MHz, 1 545-1 559 MHz, 1 610-1 645.5 MHz, 1 646.5-1 660 MHz, 1 670-1 675 MHz and 2 483.5-2 500 MHz allocated to the mobile-satellite service (MSS)     United States   AI1.11   2025-10-03
[ 501 ]  
 
Working document toward draft CPM text for WRC-27 agenda item 1.11     United States   AI1.11   2025-10-03
[ 497 ]  
 
Proposed protection criteria based on the Recommendation ITU-R M.1183 for the mobile satellite service (MSS) operating in frequency bands between 1-3 GHz - Protection criteria for WRC-27 agenda items 1.11, 1.12, 1.13 and 1.14     Egypt   1.14, 1.13, 1.12, 1.11   2025-10-03
[ 494 ]  
 
Protection of existing mobile satellite services for consideration under WRC-27 agenda items 1.11, 1.12, 1.13 and 1.14     Samoa   AI1.14, AI1.13, AI1.12, AI1.11   2025-10-03
[ 490 ]  
 
Proposed modifications to the working document regarding WRC-27 agenda item 1.11     AST & Science SpaceMobile   AI1.11   2025-10-03
[ 468 ]  
 
Incumbent system characteristics in the 2 483.5-2 500 MHz frequency bands for sharing and compatibility studies in preparation for WRC-27 agenda item 1.11     India   AI1.11   2025-10-03
[ 464 ]  
 
WRC-27 agenda item 1.11 - Coexistence of space-to-space links with existing services in the band 1 670-1 675 MHz     Viasat, Inc.   AI1.11   2025-10-02
[ 462 ]  
 
Compatibility study under WRC-27 agenda item 1.11 - assessment of space-to-space link interference into the uplink of HIBLEO-X / HIBLEO-XL-1 / HIBLEO-4     Australia   AI1.11   2025-10-03
[ 461 ]  
 
Proposed protection criteria based on Recommendation ITU-R M.1183 for the mobile satellite services (MSS) operating in band below 3 GHz - Protection criteria for WRC-27 agenda items 1.11, 1.12, 1.13 and 1.14     African Telecommunications Union   AI1.14, AI1.13, AI1.12, AI1.11   2025-10-02
[ 458 ]  
 
Proposed protection criteria based on Recommendation ITU-R M.1183 for the mobile satellite services (MSS) operating in band below 3 GHz - Protection criteria for WRC-27 agenda items 1.11, 1.12, 1.13 and 1.14     Saudi Arabia   AI1.14, AI1.13, AI1.12, AI1.11   2025-10-02
[ 457 ]  
 
Information on best practices study under WRC-27 agenda items 1.11,1.12,1.13 and 1.14     Chair, WP 4C   AI1.14, AI1.13, AI1.12, AI1.11   2025-10-03
[ 449 ]  
 
Proposed revisions to working document towards draft CPM text for WRC-27 agenda item 1.11     United Kingdom   AI1.11   2025-10-02
[ 448 ]  
 
Proposed revisions to working document regarding WRC-27 agenda item 1.11 - Space-to-space links in the frequency bands 1 518-1 544 MHz, 1 545-1 559 MHz, 1 610-1 645.5 MHz, 1 646.5-1 660 MHz, 1 670-1 675 MHz and 2 483.5-2 500 MHz allocated to the mobile-satellite service (MSS)     United Kingdom   AI1.11   2025-10-02
[ 441 ]  
 
Proposed updates to the working document regarding RDSS (section 5.2.2), ARNS (section 5.2.3), ARNSS (section 5.2.4) and RNSS (section 5.5.1) on WRC-27 agenda item 1.11     Russian Federation   AI1.11   2025-10-02
[ 440 ]  
 
Proposed updates to the working document regarding RDSS (section 4.2.4.1), ARNS (section 4.2.4.2) and ARNSS (section 4.2.4.3) on WRC-27 agenda item 1.11     Russian Federation   AI1.11   2025-10-02
[ 439 ]  
 
Proposed revisions to the working document regarding WRC-27 agenda item 1.11     Russian Federation   AI1.11   2025-10-02
[ 438 ]  
 
Analysis of existing study submitted under WRC-27 agenda item 1.11 and additional sharing study in the frequency bands 1 525-1 559 MHz and 1 625.5-1 660 MHz     Russian Federation   AI1.11   2025-10-02
[ 437 ]  
 
Proposed revisions to the working document towards draft CPM text for WRC-27 agenda item 1.11     Russian Federation   AI1.11   2025-10-02
[ 392 ]  
 
Proposed modifications to the working document regarding WRC-27 agenda item 1.11 - Space-to-space links in the frequency bands 1 518-1 544 MHz, 1 545-1 559 MHz, 1 610-1 645.5 MHz, 1 646.5-1 660 MHz, 1 670-1 675 MHz and 2 483.5-2 500 MHz allocated to the mobile-satellite service (MSS)     China   AI1.11   2025-09-29
[ 388 ]  
 
Reply liaison statement to ITU-R Working Party 4C regarding calculations on overlaps between WRC-27 agenda items 1.11/1.13 and 1.15 - WRC-27 agenda items 1.11, 1.13 and 1.15 sharing studies     WP 7B   AI1.15, AI1.13, AI1.11   2025-09-25
[ 369 ]  
 
Liaison statement to Working Party 4C (copy to Working Parties 4A, 4B, 5A, 5B, 5C, 5D, 6A, 7B, 7C and 7D for information) - Update on propagation modelling for WRC-27 agenda items 1.11, 1.12, 1.13 and 1.14     WP 3M   AI1.14, AI1.13, AI1.12, AI1.11   2025-06-10
[ 348 ]  
 
Proposed modifications to the working document regarding WRC-27 agenda item 1.11     Egypt   AI1.11   2025-04-11
[ 339 ]  
 
Incumbent RDSS system characteristics in the 2 483.5-2 500 MHz frequency band for sharing and compatibility studies in preparation for WRC-27 agenda item 1.11     India   AI1.11   2025-04-11
[ 331 ]  
 
Reply liaison statement to Working Party 5D on protection criterion for terrestrial IMT - WRC-27 agenda items 1.11, 1.12 and 1.14     France   AI1.14, AI1.12, AI1.11   2025-04-11
[ 317 ]  
 
Working document towards draft CPM text for WRC-27 agenda item 1.11     Russian Federation   AI1.11   2025-04-10
[ 316 ]  
 
Revisions to working document regarding WRC-27 agenda item 1.11 - Space-to-space links in Mobile-satellite service (MSS) allocations in the frequency bands 1 518-1 544 MHz, 1 545-1 559 MHz, 1 610-1 645.5 MHz, 1 646.5-1 660 MHz, 1 670-1 675 MHz and 2 483.5-2 500 MHz     Russian Federation   AI1.11   2025-04-10
[ 315 ]  
 
The possibility of using the L-band frequencies for non-GSO satellites on space-to-space links under WRC-27 agenda item 1.11     Russian Federation   AI1.11   2025-04-10
[ 307 ]  
 
Proposed updates to the working document regarding WRC-27 agenda item 1.11 - Space-to-space links in Mobile-satellite service (MSS) allocations in the frequency bands 1 518-1 544 MHz, 1 545-1 559 MHz, 1 610-1 645.5 MHz, 1 646.5-1 660 MHz, 1 670-1 675 MHz and 2 483.5-2 500 MHz     Russian Federation   AI1.11   2025-04-10
[ 295 ]  
 
Proposed revisions to working document regarding WRC-27 agenda item 1.11 - Space-to-space links in Mobile-satellite service (MSS) allocations in the frequency bands 1 518-1 544 MHz, 1 545-1 559 MHz, 1 610-1 645.5 MHz, 1 646.5-1 660 MHz, 1 670-1 675 MHz and 2 483.5-2 500 MHz     Korea (Rep. of)   AI1.11   2025-04-11
[ 293 ]  
 
Proposed modifications to the working document regarding WRC-27 agenda item 1.11 - Space-to-space links in mobile-satellite service (MSS) allocations in the frequency bands 1 518-1 544 MHz, 1 545-1 559 MHz, 1 610-1 645.5 MHz, 1 646.5-1 660 MHz, 1 670-1 675 MHz and 2 483.5-2 500 MHz     China   AI1.11   2025-04-10
[ 272 ]  
 
Comparison of interference levels at the GSO arc from LEO user space stations, operating space-to-space links and typical mobile earth stations operating in GSO MSS networks in the frequency bands 1 626.5-1 645.5 MHz, 1 646.5-1 660.0 MHz, and 1 670-1 675 MHz     United Kingdom   AI1.11   2025-04-09
[ 260 ]  
 
Working document toward draft CPM text for WRC-27 agenda item 1.11 - Space-to-space links in Mobile-satellite service (MSS) allocations in the frequency bands 1 518-1 544 MHz, 1 545-1 559 MHz, 1 610-1 645.5 MHz, 1 646.5-1 660 MHz, 1 670-1 675 MHz and 2 483.5-2 500 MHz     United States   AI1.11   2025-04-07
[ 259 ]  
 
Working document regarding WRC-27 agenda item 1.11 - Space-to-space links in Mobile-satellite service (MSS) allocations in the frequency bands 1 518-1 544 MHz, 1 545-1 559 MHz, 1 610-1 645.5 MHz, 1 646.5-1 660 MHz, 1 670-1 675 MHz and 2 483.5-2 500 MHz     United States   AI1.11   2025-04-07
[ 251 ]  
 
Studies addressing frequency overlaps between WRC-27 agenda items 1.11 and 1.15     United States   AI1.15, AI1.11   2025-04-07
[ 239 ]  
 
Reply liaison statement to Working Party 4C regarding preliminary calculations on overlaps between WRC-27 agenda items 1.11, 1.13 and 1.15 - WRC-27 agenda items 1.11, 1.13 and 1.15 sharing studies     WP 7B   AI1.15, AI1.13, AI1.11   2025-04-01
[ 235 ]  
 
Preliminary calculations on overlaps between WRC-27 agenda items 1.11, 1.13 and 1.15     Chair, WP 4C and Acting Chair, WP 7B   AI1.15, AI1.13, AI1.11   2025-03-05
[ 225 ]  
 
Reply liaison statement to Working Party 4C - Fixed service characteristics for use in sharing studies under WRC-27 agenda item 1.11     WP 5C   AI1.11   2024-12-13
[ 219 ]  
 
Liaison statement to Working Party 4C - Relevant technical information to support studies under WRC-27 agenda item 1.11     WP 5A   AI1.11   2024-12-11
[ 215 ]  
 
Liaison statement to Working Party 4C - Relevant technical information to take into account for sharing studies under WRC-27 agenda item 1.11     WP 5B   AI1.11   2024-11-29
[ 201 ]  
 
Reply liaison statement to Working Party 4C - WRC-27 agenda item 1.11     WP 5D   AI1.11   2024-10-14
[ 195 ]  
 
Reply liaison statement to ITU-R Working Party 4C regarding WRC-27 agenda item 1.11 - Technical information to support studies under WRC-27 agenda item 1.11     WP 7B   AI1.11   2024-10-08
[ 194 ]  
 
Reply liaison statement to Working Party 4C regarding WRC-27 agenda item 1.11     WP 7C   AI1.11   2024-10-08
[ 185 ]  
 
Revisions to working document under WRC-27 agenda item 1.11 - Non-geostationary satellites operating space-to-space links in mobile-satellite service (MSS) allocations in the frequency bands 1 518-1 544 MHz, 1 545-1 559 MHz, 1 610-1 645.5 MHz, 1 646.5-1 660 MHz, 1 670-1 675 MHz and 2 483.5-2 500 MHz     United Kingdom   AI1.11   2024-09-27
[ 176 ]  
 
Proposed modifications to the working document regarding WRC-27 agenda item 1.11 - Non-geostationary satellites operating space-to-space links in mobile-satellite service (MSS) allocations in the frequency bands 1 518-1 544 MHz, 1 545-1 559 MHz, 1 610-1 645.5 MHz, 1 646.5-1 660 MHz, 1 670-1 675 MHz and 2 483.5-2 500 MHz     Egypt   AI1.11   2024-09-28
[ 166 ]  
 
MSS parameters to be used for sharing studies under WRC-27 agenda item 1.11 in the frequency bands 1 610-1 618.25 MHz and 2 483.5-2 500 MHz and WRC-27 agenda item 1.13 for adjacent band studies     France   AI1.13, AI1.11   2024-09-27
[ 152 ]  
 
Proposed updates for working document regarding WRC-27 agenda item 1.11 - WRC-27 agenda item 1.11 - Non-geostationary satellites operating space-to-space links in mobile-satellite service (MSS) allocations in the frequency bands 1 518-1 544 MHz, 1 545-1 559 MHz, 1 610-1 645.5 MHz, 1 646.5-1 660 MHz, 1 670-1 675 MHz and 2 483.5-2 500 MHz     China   AI1.11   2024-09-27
[ 142 ]  
 
Proposals for taking into account the characteristics of receivers using L1 range frequencies within the framework of the RDSS, ARNSS and RNSS in studies under WRC-27 Agenda item 1.11     Russian Federation   AI1.11   2024-09-26
[ 139 ]  
 
Reply liaison statement to Working Party 4C (copy to Working Parties 4A, 4B, 5A, 5B, 5C, 5D, 7B and 7C for information) - WRC-27 agenda item 1.11     WP 7D   AI1.11   2024-09-27
[ 127 ]  
 
Contribution toward working document regarding WRC-27 agenda item 1.11 - Non-geostationary satellites operating space-to-space links in mobile-satellite service (MSS) allocations in the frequency bands 1 518-1 544 MHz, 1 545-1 559 MHz, 1 610-1 645.5 MHz, 1 646.5-1 660 MHz, 1 670-1 675 MHz and 2 483.5-2 500 MHz     United States   AI1.11   2024-09-27
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