Differences

This shows you the differences between two versions of the page.

--- projects [2023/07/28 16:32]
icts
+++ projects [2024/07/03 23:35] (current)
icts
@@ Line 1: / Line 1: @@
-====== WRC 23 Telemetry Watch ======
+====== **WRC 27 Telemetry Watch** ======
-The ICTS strives to keep it members and associates informed on international threats and challenges to RF telemetry spectrum.
+//The ICTS strives to keep it members and associates informed on international threats and challenges to RF telemetry spectrum.
-The 2023 World Radiocommunications Conference (WRC 2023, Dubai, UAE 20Nov to 15Dec)  will address agenda items that could affect the international telemetering community. ICTS members are encouraged to pass-on information they may have on impacts from these agenda items to //ICTS@telemetryspectrum.org// and we will post that information here and in our annual Newsletter. Our goal is to  keep the telemetering community aware of these threats so they keep their own national administrations informed of national impacts. As a result, we hope their national  ITU representatives can make informed decisions and presentations in ITU working party and regional discussions.
+With the completion of the 2023 World Radiocommunications Conference (WRC 2023, Dubai, UAE 20Nov to 15Dec23)  several telemetry spectrum related  agenda items were proposed for the 2027 WRC. ICTS members are encouraged to pass-on information they may have on impacts from these agenda items to //ICTS@telemetryspectrum.org// and we will post that information here on the **WRC 27 Telemetry Watch.** Our goal is to  keep the telemetering community aware of these threats so they keep their own national administrations informed of national impacts. As a result, we hope their national  ITU representatives can make informed decisions and presentations in ITU working party and regional discussions.//
-__**Agenda Item 1.1**__
+__**Agenda Item 1.11**__
-//Agenda Item 1.1 to consider, based on the results of the ITU R studies, possible measures to address, in the frequency band 4 800-4 990 MHz, protection of stations of the aeronautical and maritime mobile services located in international airspace and waters from other stations located within national territories, and to review the pfd criteria in No. 5.441B in accordance with Resolution 223 (Rev.WRC-19); RESOLUTION 223 (Rev.WRC 19). Additional frequency bands identified for International Mobile Telecommunications.//
+//WRC 27 Agenda Item 1.11 will address the growing need for space-space staellite links.
+"… to consider the technical and operational issues, and regulatory provisions, for space-to- space links among non-geostationary and geostationary satellites 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 675MHz and 2 483.5-2 500 MHz allocated to the mobile-satellite service, in accordance with Resolution 249. (Rev.WRC-23).//
 **Current Telemetry use/potential impact:**
-The upper portion of the 4 GHz band, namely 4800-4990 MHz, is identified for IMT in numerous countries (including China, South Africa, Russia, Nigeria, Gambia, Uruguay, and Iran). In a number of administrations in ITU Region 2 (North/South America) and in Australia this band is also used for aeronautical mobile telemetry (“AMT”).
+The associated resolution to this agenda item (Res 249) notes that in Region 2 the frequency band 1 435-1 525 MHz is used by the aeronautical mobile service for telemetry. It seeks studies of the technical and operational characteristics of different types of non- geosynchronous-orbit (non-GSO) space stations that operate space-to-space links with non-GSO systems or GSO networks for space-to-Earth direction in the frequency bands 1 518-1 525 MHz, among others.
-WRC-23 agenda item 1.1 calls for studies to consider measures to protect stations of the aeronautical and maritime mobile services located in international airspace and waters from IMT operations in the 4800-4990 MHz band. France, the U.S., Canada and other administrations have sought to protect Aeronautical Mobile Service systems (AMS, AMT is included in AMS) and Maritime Mobile Service systems. Russia, supported by China, Iran, and others have sought changes that would weaken existing protection for AMS/MMS in international airspace and waters. This is currently a hotly debated issue that will probably not be resolved until the WRC. The issue has been worked in ITU-R Working Parties 5D and 5B.
+This could affect AMT operators in the United States and other administrations. This would also include the space-to-Earth direction in the frequency band 1 518-1 544 MHz.
-Recommendation ITU-R M 2116-0 (01/2018) Technical characteristics and protection criteria for the aeronautical mobile service systems operating within the 4 400-4 990 MHz frequency range, is a significant part of this discussion. M.2116 is referenced in sharing and compatibility studies by the Working Parties
+**Current Status:**
+This has been assigned to ITU Working Party 4C which meets in Oct.
-Work done in the U.S. (by John Hopkins University’s Applied Physics Lab) has determined that existing criteria specified in ITU-R M.2116 can protect AMT signals adequately, and the United States has proposed that AMT (currently excluded from the scope of the Recommendation) be included, or at least that certain parts of the technical parameters in the Recommendation be identified as also applicable to AMT. The intent is to put AMT in a stronger position to respond to encroachment threats from IMT (mobile broadband such as 5G) in this band, or portions thereof such as 4800-4940 MHz.
+__**Agenda Item 1.13**__
-**Current Status;**
+//…to consider studies on possible new allocations to the mobile-satellite service for direct connectivity between space stations and International Mobile Telecommunications (IMT) user equipment to complement terrestrial IMT network coverage, in accordance with Resolution COM6/9. (WRC-23)//
-WP5B(Maritime/Mobile/Radioloc)
+**Current Telemetry use/potential impact:**
-Report on the twenty-ninth meeting of Working Party 5B (Geneva, 11-22 July 2022)
-Annex 13: Preliminary draft revision to Recommendation ITU-R M.2116-0 - Technical and operational characteristics and protection criteria for systems
-operating in the aeronautical mobile service and maritime mobile service within the 4 400-4 990 MHz frequency range.
-Next Meeting; 7/10/23
+The agenda item and accompanying Resolution COM6/9 (WRC-23) provide that the studies will deal with the frequency range between 694/698 MHz and 2.7 GHz, which can include several AMT bands.
-WP5D (IMT)
-Report on the 42nd meeting of Working Party 5D (Geneva, 10-21 October 2022)
-Chapter 4 - Annex 4.8: Supporting material for WRC-23 agenda item 1.1 - Technical and regulatory conditions for the protection of stations of the aeronautical mobile service (AMS) and maritime mobile service (MMS) located in international airspace or waters (i.e. outside national territories) and operating in the frequency band 4 800-4 990 MHz
-Next Meeting: tbd
+__**Agenda Item 1.7**__
-**__Agenda Item 1.4__**
+//… to consider studies on sharing and compatibility and develop technical conditions for the use of International Mobile Telecommunications (IMT) in the frequency bands 4 400-4 800 MHz, 7 125-8 400 MHz (or parts thereof), and 14.8-15.35 GHz taking into account existing primary services operating in these, and adjacent, frequency bands, in accordance with Resolution COM 6/26 (WRC- 23)//
-to consider, in accordance with Resolution 247 (WRC-19), the use of high-altitude platform stations as IMT base stations (HIBS) in the mobile service in certain frequency bands below 2.7 GHz already identified for IMT, on a global or regional level;
+**Current Telemetry use/potential impact:**
-RESOLUTION 247 (WRC 19); Facilitating mobile connectivity in certain frequency bands below 2.7 GHz using high-altitude platform stations as International Mobile Telecommunications base stations
+The associated resolution on IMT could affect the 4 400- 4 940 MHz band used for AMT. The resolution discusses the necessary studies for the use of International Mobile Telecommunications (IMT) in several bands, including 4 400-4 800 MHz (Region 1 and 3 only), to implement IMT. The resolution references relevant protective information relating to previous sharing studies including ITU-R M.2116.
+__** Proposed Agendas Item for WRC 31**__
+RNSS Spectrum. WRC-23 adopted a preliminary agenda item for WRC-31 on RNSS spectrum
+//…to consider possible allocations to the radionavigation-satellite service (space-to- Earth) in the frequency bands [5 030-5 150 MHz
+and 5 150-5 250 MHz] or parts thereof, in accordance with Resolution COM6/19 (WRC- 23)//
+The accompanying resolution (COM 6/19)  asks for studies on possible new allocations to the radionavigation-satellite service (space-to- Earth) in the frequency bands [5 030-5 150 MHz and 5 150-5 250 MHz] or parts thereof.
 **Current Telemetry use/potential impact:**
-This item discusses the use of high-altitude platform stations as IMT base stations (HIBS) in the mobile service in frequency bands below 2.7 GHz. The band 1780-1850 MHz, allocated for AMT in some administrations, has been suggested for HIBS use in current WP5D discussions. Discussions on this issue are on-going in ITU-R Working Party 5D.
+Parts of these bands are currently used by AMT (5 091-5 150 MHz globally and 5150-5250 in Region 1 (and others). This resolution, in support of the ESA’s R&D activities on the European Global Navigation Satellite System (EGNSS) and Positioning, Navigation and Timing in Low Earth Orbit (LEO-PNT), asks for new frequency bands and allocations suitable for very wide band PNT signals. Clearly, these new services could be exploited by all other RNSS users, including aeronautical transportation systems. It is felt that these potential new signals cannot be supported in the existing allocations.
+ITU-R Studies on sharing and compatibility between RNSS and the incumbent services may be considered at WRC-27 with the result depending on confirmation of the preliminary agenda item for WRC-31.
-**Current Status;**
-Report on the 42nd meeting of Working Party 5D (Geneva, 10-21 October 2022)
+--------------------
-Chapter 4 - Annex 4.28.2: Reference list of ITU-R Resolutions, Recommendations and Reports, as well as other ITU and non-ITU publications, used in the draft CPM text for WRC-23 agenda item 1.4
-Chapter 4 - Annex 4.28: Draft CPM Text on WRC-23 agenda item 1.4
-Next meeting 31 Jan. 2023.

User Tools

Site Tools

Differences

Page Tools