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ITU-R R23-WP4C

Efficient Orbit/Spectrum Utilization for MSS and RDSS

Results:357 total items.
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Contributions  Documents / Contributions
 
Number 
Title Source AI/Question
Date
[ 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
[ 306 ]  
 
Characteristics of a model system configuration for satellite direct-to-device services under WRC-27 agenda item 1.13     Maldives   AI1.13   2025-04-11
[ 305 ]  
 
Contribution to the working document on sharing and compatibility studies of possible new allocations to the MSS on WRC-27 agenda item 1.14     EchoStar Operating LLC   AI1.14   2025-04-11
[ 304 ]  
 
Considerations for studies regarding WRC-27 agenda item 1.14     GSM Association   AI1.14   2025-04-10
[ 303 ]  
 
Considerations for studies regarding WRC-27 agenda item 1.12     GSM Association   AI1.12   2025-04-10
[ 302 ]  
 
Input for working document on sharing and compatibility studies in relation to WRC-27 agenda item 1.13     Mexico   AI1.13   2025-04-11
[ 301 ]  
 
Input for working document regarding WRC-27 agenda item 1.12 - Studies on low-data-rate non-GSO mobile-satellite systems in the mobile-satellite service     Mexico   AI1.12   2025-04-11
[ 300 ]  
 
Representative MSS system characteristics for studies related to WRC-27 agenda item 1.12     Australia   AI1.12   2025-04-11
[ 299 ]  
 
Proposed revisions to reply liaison statement to Working Party 5D on WRC-27 agenda item 1.7     Australia   AI1.7   2025-04-11
[ 298 ]  
 
Proposed draft revision to Recommendation ITU-R M.1787-5 - Description of systems and networks in the radionavigation-satellite service (space-to-Earth and space-to-space) and technical characteristics of transmitting space stations operating in the bands 1 164-1 215 MHz, 1 215-1 300 MHz and 1 559-1 610 MHz     Korea (Rep. of)   Q288/4, Q217-2/4   2025-04-11
[ 297 ]  
 
Consideration and proposals for the usage of frequency bands 1 980-2 010 MHz and 2 170-2 200 MHz related to WRC-27 agenda item 1.13     Korea (Rep. of)   AI1.13   2025-04-11
[ 296 ]  
 
Proposed revisions to working document towards a preliminary draft revision of Recommendation ITU-R M.1184-3 - Technical characteristics of mobile satellite systems in the frequency bands below 3 GHz for use in developing criteria for sharing between the mobile-satellite service (MSS) and other services     Korea (Rep. of)     2025-04-11
[ 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
[ 294 ]  
 
Proposal on the parameters of MSS system towards WRC-27 agenda item 1.7     China   AI1.7   2025-04-10
[ 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
[ 292 ]  
 
Revisions to Recommendation ITU-R M.1184-3 - Technical characteristics of mobile satellite systems in the frequency bands below 3 GHz for use in developing criteria for sharing between the mobile-satellite service (MSS) and other services     China     2025-04-10
[ 291 ]  
 
Considerations on protection criterion related to interference to GSO MSS in the frequency range 1 980-2 010 MHz (Earth-to-space) and 2 170-2 200 MHz (space-to-Earth) for sharing studies for WRC-27     China   AI1.14, AI1.13   2025-04-10
[ 290 ]  
 
Proposal for sharing and compatibility studies in the frequency bands 1 710-2 025 MHz and 2 110-2 200 MHz in relation to WRC-27 agenda item 1.13     China   AI1.13   2025-04-10
[ 289 ]  
 
Proposals on the description of operational concepts/functionality of direct connectivity between space stations and IMT user equipment     China     2025-04-10
[ 288 ]  
 
Proposal on the draft reply liaison statement to Working Party 5D under WRC-27 agenda item 1.13     China   AI1.13   2025-04-10
[ 287 ]  
 
Proposal on sharing and compatibility studies between MSS and IMT under WRC-27 agenda item 1.12     China   AI1.12   2025-04-10
[ 286 ]  
 
Proposal on sharing and compatibility studies between MSS and IMT operated in 2 010-2 025 MHz frequency band under WRC-27 agenda item 1.14     China   AI1.14   2025-04-10
[ 285 ]  
 
Proposal for the suppression of Recommendation ITU-R M.632-3 - Transmission characteristics of a satellite emergency position-indicating radio beacon (satellite EPIRB) system operating through geostationary satellites in the 1.6 GHz band     China     2025-04-10
[ 284 ]  
 
Proposal for sharing and compatibility studies in the frequency bands 2 500-2 570 MHz and 2 620-2 690 MHz in relation to WRC-27 agenda item 1.13     China   AI1.13   2025-04-10
[ 283 ]  
 
Consideration of issues on power flux-density under WRC-27 agenda item 1.13     China   AI1.13   2025-04-10
[ 282 ]  
 
Updates to preliminary draft revision of Recommendation ITU-R M.1787 on new non-GSO RNSS system in the 1 164-1 215 MHz, 1 215-1 300 MHz and 1 559-1 610 MHz frequency bands - Description of systems and networks in the radionavigation-satellite service (space-to-Earth and space-to-space) and technical characteristics of transmitting space stations...     China     2025-04-10
[ 281 ]  
 
Proposal for sharing and compatibility studies in the frequency bands 1 427-1 518 MHz in relation to WRC-27 agenda item 1.13     China   AI1.13   2025-04-10
[ 280 ]  
 
Revision to working document on sharing and compatibility studies of possible new allocations to the MSS on WRC-27 agenda item 1.14     China   AI1.14   2025-04-10
[ 279 ]  
 
Proposed definitions to the terms and terminologies to be considered under the initial consideration on the possible description and functionality of MSS systems for direct connectivity between space stations and IMT user equipment document     Tanzania   AI1.13   2025-04-10
[ 278 ]  
 
Considerations on the MSS NGSO satellite antenna radiation pattern for WRC-27 agenda item 1.13     New Zealand   AI1.13   2025-04-10
[ 277 ]  
 
Studies and elements for the working document regarding WRC-27 agenda item 1.12     Canada , Norway   AI1.12   2025-04-09
[ 276 ]  
 
Information paper - Canadian domestic framework for supplemental mobile coverage by satellite     Canada     2025-04-09
[ 275 ]  
 
Work related to WRC-27 agenda item 1.13     Brazil   AI1.13   2025-04-09
[ 274 ]  
 
Updates to proposed reply liaison statement to Working Party 5D on work related to WRC-27 agenda item 1.7     Brazil   AI1.7   2025-04-09
[ 273 ]  
 
Characteristics and protection criteria of the existing SAP/SAB wireless video links for sharing and compatibility studies under agenda item 1.13 in preparation for WRC-27     United Kingdom   AI1.13   2025-04-09
[ 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
[ 271 ]  
 
Elements to be taken into account in sharing and compatibility studies in relation to WRC-27 agenda item 1.13     Iran (Islamic Republic of)   AI1.13   2025-04-08
[ 270 ]  
 
Characteristics of a reference System XX for direct-to-device (D2D) services under WRC-27 agenda item 1.13     Nigeria   AI1.13   2025-04-07
[ 269 ]  
 
Characteristics and protection criteria of the existing SAP/SAB wireless video links for sharing and compatibility studies under agenda item 1.14 in preparation for WRC-27     Greece   AI1.14   2025-04-07
[ 268 ]  
 
Proposed guidelines on collaboration between Working Parties 4A and 4C to facilitate the ITU-R preparatory studies for WRC-27 agenda item 1.5     Chair, WP 4A and Chair, WP 4C   AI1.5   2025-04-08
[ 267 ]  
 
Liaison statement on WRC-27 agenda item 1.18 to Working Parties 4A, 4C, 5A and 5B     WP 7C   AI1.18   2025-04-08
[ 266 ]  
 
Characteristics and protection criteria of the existing SAP/SAB wireless video links for sharing and compatibility studies under agenda item 1.12 in preparation for WRC-27     France   AI1.12   2025-04-07
[ 265 ]  
 
Reply liaison statement to Working Party 4C - Updates regarding Working Party 7C consideration of RNSS-related comments on preliminary draft new Report ITU-R RS.[AGG_EESS_SAR-RNSS] - (Questions ITU-R 217-2/4 and ITU-R 288/4)     WP 7C   Q288/4, Q217-2/4   2025-04-08
[ 264 ]  
 
Working document on sharing and compatibility studies in relation to WRC-27 agenda item 1.13     United States   AI1.13   2025-04-07
[ 263 ]  
 
Working document on sharing and compatibility studies in relation to WRC-27 agenda item 1.13     United States   AI1.13   2025-04-07
[ 262 ]  
 
Technical/operational characteristics of MSS for direct connectivity between space stations and IMT user equipment     United States   AI1.13   2025-04-07
[ 261 ]  
 
Proposed edits to working document on technical and operational characteristics of MSS for direct communication with IMT user equipment     United States   AI1.13   2025-04-07
[ 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
[ 258 ]  
 
Working document on sharing and compatibility studies of possible new allocations to the low-data-rate non-GSO MSS on WRC-27 agenda item 1.12     United States   AI1.12   2025-04-07
Results:357 total items.
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