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[356]  Report of the thirty-third meeting of Working Party 4C (Shanghai, China, 23 April - 2 May 2025)

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37855 bytes 2025-05-07 [356] Annex 22 - Draft revisions to Chapter 5 and 6 of the Handbook on satellite communications and technologies (Annex 18 to Document 4A/343)

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44001 bytes 2025-05-07 [356] Annex 21 - Preliminary draft revision of Report ITU-R M.2305-0 - Consideration of aggregate radio frequency interference event potentials from multiple Earth exploration-satellite service systems on radionavigation-satellite service receivers operating in the 1 215-1 300 MHz frequency band

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34693 bytes 2025-05-07 [356] Annex 20 - Preliminary 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

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49434 bytes 2025-05-07 [356] Annex 19 - Draft elements for Working Party 4C Chair's Report - Text from WRC-23 Plenary for the attention of the ITU-R Working Parties that are either responsible for or contributing to studies relevant to items of the WRC-27 agenda or the WRC-31 preliminary agenda

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35836 bytes 2025-05-07 [356] Annex 18 - Work plan for the revision of Recommendation ITU-R M.1184-3

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5033642 bytes 2025-05-07 [356] Annex 16 - Working document in support of WRC-31 preliminary agenda item 2.9 - Technical characteristics and operational objectives of emerging RNSS systems

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162268 bytes 2025-05-07 [356] Annex 15 - Preliminary 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

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278526 bytes 2025-05-07 [356] Annex 14 - Working document towards a preliminary draft new Report ITU-R M.[RES.609] - Potential mitigation methods to ensure the aggregate equivalent power flux-density (epfd) limit on radionavigation-satellite service (RNSS) systems and networks operating in the 1 164-1 215 MHz band, from resolves 1 of Resolution 609 (Rev.WRC-07), is not exceeded

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37894 bytes 2025-05-07 [356] Annex 13 - Note fron the Chair of Working Party 4C to the Director of the Radiocommunication Bureau

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39615 bytes 2025-05-07 [356] Annex 12 - Detailed workplan for WRC-27 agenda item 1.14

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37967 bytes 2025-05-07 [356] Annex 11 - Working document towards a preliminary draft CPM text for WRC-27 agenda item 1.14

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38420 bytes 2025-05-06 [356] Annex 9 - Terms of Reference for Working Party 4C Correspondence Group on WRC-27 agenda item 1.13

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41205 bytes 2025-05-06 [356] Annex 8 - Work plan for WRC-27 agenda item 1.13

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25713 bytes 2025-05-06 [356] Annex 07 Part 01

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14456822 bytes 2025-05-06 [356] Annex 7 - Working document on sharing and compatibility studies under WRC-27 agenda item 1.13

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1160651 bytes 2025-05-06 [356] Annex 6 - Working document on the possible description and functionality of MSS systems for direct connectivity between space stations and IMT user equipment

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38260 bytes 2025-05-06 [356] Annex 5 - Draft work plan for WRC-27 agenda item 1.12

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8459936 bytes 2025-05-06 [356] Annex 4 - Working document regarding WRC-27 agenda item 1.12 - Studies on low-data-rate non-GSO mobile-satellite systems in the mobile-satellite service

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39786 bytes 2025-05-06 [356] Annex 3 - Work plan for WRC-27 agenda item 1.11

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1541318 bytes 2025-05-06 [356] Annex 2 - 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)

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39786 bytes 2025-05-06 [356] Annex 1 - Working document towards draft CPM text for WRC-27 agenda item 1.11
 

Document :

ITU-R R23-WP4C  Contribution  356

Title :

Report of the thirty-third meeting of Working Party 4C (Shanghai, China, 23 April - 2 May 2025)

Date :

2025-05-02

Source :

Chair, WP 4C

Meeting :

2025-04-23

Access :

Restricted to TIES users [ITU-R]

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