WRC 2007 Agenda Items for WP 7C

Earth-exploration satellite systems and meteorological elements

The list below shows all the WRC 2007 Agenda Items for which this group is involved. Click on an Agenda Item or Resolution to get more information about which Visualyse product could be useful, and how Transfinite consultants can assist in studying this problem.

Agenda Item	Description
Agenda 1.2	This agenda item refers to three issues relating to EESS (passive) and the GSO meteorological satellite service: i) consider whether it would be feasible for WRC 2007 to extend the allocation for GSO meteorological satellite service between 18.1 and 18.3 GHz to provide 300 MHz of contiguous spectrum; ii) to determine appropriate sharing criteria between EESS (passive) & SRS (passive) and the fixed and mobile services in the 10.6 - 10.68 GHz band; and iii) to determine suitable criteria for EESS (passive) to share the 36 - 37 GHz band with fixed and mobile services, in particular high density point to point fixed services
Agenda 1.3	This agenda item refers to bands between 9 and 10 GHz, where requirements have been identified for more spectrum to be available for: i) radiolocation, by raising its status in the 9 200 - 9300 MHz from secondary to primary, to be used in conjunction with existing primary allocations which include the 9 000 - 9 200 MHz and 9 300 - 9 800 MHz bands; ii) EESS, by allocating up to 200 MHz of additional spectrum around a current allocation at 9 500 - 9 800 MHz
Agenda 1.4	This wide ranging Agenda Item relates to the further development of IMT-2000 and systems beyond IMT-2000, in particular: i) studies of the requirements for spectrum and potential frequency ranges ii) consideration of spectrum at frequencies below those identified in 5.317A (806 - 960 MHz) iii) that the studies in i) above should take account of benefit to developing countries of the satellite component of IMT-2000; iv) that sharing and compatibility studies should be performed where necessary when considering additional frequency bands for IMT-2000
Agenda 1.5	This agenda item covers consideration of mobile allocations to be used for wideband aeronautical telemetry and associated telecomand, based upon: i) study of the spectrum requirements for such systems; ii) study of possible upgrading of suitable secondary mobile allocations in the range 3 - 16 GHz to primary, undertaking sharing studies where required; iii) consideration of additional allocations in the range 3 - 16 GHz to the mobile service for such services, undertaking sharing studies where required;
Agenda 1.6	This agenda item relates to aeronautical mobile (R) services in bands between 108 MHz and 6 GHz. It notes there are new requirements to support air navigation, and so the following work is required: i) to identify if existing allocations to aeronautical services are sufficient for these new applications; ii) if additional spectrum is required, to identify what might be suitable bands, taking into account the need to not constrain existing and planned use of such bands, and so undertaking sharing studies where required; iii) in particular, how to accommodate the requirements for aeronautical systems in the band 5 091 - 5 150 MHz iv) to consider what actions would be required to broaden current satellite frequency allocations to support the expansion of the ICAO CNS/ATM system
Agenda 1.7	This agenda item relates issues relating to the allocation of 7 MHz to the MSS (Earth to space) between 1 668 MHz and 1 675 MHz. Outside the US (where MSS operation is unlikely to be feasible), there is a need to study: i) studies relating to sharing with space research (passive) space stations in the 1 668 - 1 668.4 MHz band, and ii) studies relating to sharing with the mobile service, in the band 1 668.4 MHz to 1 675 MHz In these bands there are also allocations for the fixed, meteorological, met aids, and radio astronomy services
Agenda 1.8	This agenda item relates to continuing the development of the regulatory framework for High Altitude Platform Stations (HAPS). Firstly in the bands 47.2 - 47.5 and 47.9 - 48.2 GHz: i) to encourage administrations to facilitate coordination between HAPS systems and co-primary satellite services, provisionally using Article 9 as a basis for procedures; ii) to study power limits for HAPS ground stations to facilitate sharing with space station receivers; iii) to study the regulatory provisions that might be needed to address the issue of a HAPS deployment in one administration effecting another; iv) other issues relating to sharing with radio astronomy and GSO FSS; Secondly in the bands 27.5 - 28.35 (HAPS to ground) and 31 - 31.3 (ground to HAPS) GHz, where HAPS shall not cause harmful interference to, nor claim protection from stations of other services: v) to conduct studies including sharing with fixed service to identify a suitable and preferably common 300 MHz of the 27.5 - 28.35 GHz; vi) to develop the necessary Recommendations on technical sharing criteria or HAPS system design conditions that are necessary to ensure HAPs can operate successfully on a non-harmful interference, non protected basis; vii) studies of the interference criteria and methodology for evaluating interference between HAPS downlinks and GSO FSS Uplinks; viii) to study the regulatory provisions that might be needed to address the issue of a HAPS deployment in one adminstration effecting another; ix) studies relating to mitigation techniques for HAPS sharing with the fixed service;
Agenda 1.17	This agenda item relates to the 1 390 - 1 392 MHz (E-s) and 1 430 - 1 432 MHz (s-E) additional allocations made during WRC 2003 to the fixed satellite service operating feeder links for non-GSO MSS systems where the service links are under 1 GHz. However the CPM Report indicated that studies of compatibility with other services allocated in this band were not complete, indeed there were suggestion that sharing with EESS (passive) in particular, could be problematic. Services in these bands includes the fixed, mobile, radiolocation, EESS (passive), radio astronomy, space research (passive) and aeronautical mobile. These allocations are therefore not be used until studies are completed on: i) sharing studies on operational and technical means to facilitate sharing in the uplink direction in the band identified and others around 1.4 GHz; ii) sharing studies on operational and technical means to facilitate sharing in the downlink direction in the band identified and others around 1.4 GHz; iii) validate that the unwanted emissions from the FSS feeder links would meet the protection requirements of the passive services iv) to study the PFD levels required to protect the EESS (passive)
Agenda 1.18	This agenda item relates to sharing between FSS systems using highly inclined orbits and the fixed service in the 17.7 - 19.7 GHz bands. To facilitate sharing, PFD limits are defined in Article 21, but it has not been determined whether these values are adequate for such non-GSO systems with apogees greater than 18 000 km and orbital inclination between 35 and 135 degrees. It is therefore necessary to study: i) whether the current pfd limits would protect the fixed service, without unduly constraining development of these non-GSO FSS systems; ii) whether there are technical and operational measures that could be implemented in the fixed service to mitigate interference from these satellite systems.
Agenda 1.19	This agenda item relates to spectrum for broadband services via satellite. A number of bands have been identified in 5.BC03 for use by high density fixed satellite service (HDFSS) applications, and it would be beneficial if there were globally harmonised spectrum. Work is therefore required to: i) identify the requirement for spectrum for these types of systems; ii) identify the preferred global harmonised bands, potentially including sharing studies with other services allocated in these bands
Agenda 1.20	This agenda item refers to compatibility between the EESS (passive) service and active services with allocations in adjacent or nearby bands. ITU-R Recommendation SM 1633 undertook a band by band survey of compatibility between passive and active services in adjacent bands. However this Recommendation did not cover all service + band pairs, and so further work is required: i) The Resolution identifies 7 band and service combinations for further study, involving frequencies between 1 400 MHz and 50.4 GHz, and the fixed, mobile, fixed satellite, and radiolocation services. ii) In addition work is required to consider the impact of implementing the values in Rec. 1633 on the fixed service (excluding HAPS) in Regions 2 and 3 in bands around 30 GHz and 50 GHz.
Resolution 63	This resolution relates to interference from industrial, scientific, and medical (ISM) equipment, and calls for further studies on the limits to be imposed on ISM equipment within and outside the bands designated for its use.
Resolution 525	This resolution relates to the introduction of broadcast satellite service (sound) systems and complementary terrestrial broadcasting in bands between 1 and 3 GHz. It calls upon studies of the calculation method and interference criteria for sharing between satellite and terrestrial broadcasting stations, and with other effected services.
Resolution 229 [COM5/16]	This resolution refers to the use of the bands between 5 150 and 5 725 by wireless access networks including radio local area networks. A number of changes in allocations were made in this 5 GHz band during WRC-03, for example additional allocations for the mobile service, and upgrades for other services such as radiolocation. This resolution defines regulations to facilitate use of this band by the various services allocated. It also calls upon further work: i) on the regulatory mechanisms and further mitigation techniques to avoid incompatibilities caused by the aggregate interference from large numbers of WAS devices into non-GSO FSS uplinks in the 5 150 - 5 250 MHz band; ii) on mitigation techniques to protect EESS from stations in the mobile service iii) on test methods and procedures for the implementation of dynamic frequency selection
Resolution 950 [COM7/1]	This resolution relates to bands from 275 to 3,000 GHz, which is currently not covered by the table of allocations. Article 5.565 makes provision for use of these bands by passive services such as radio astronomy, EESS (passive) and space research (passive). There is therefore a need to study potential usage of these bands and possible sharing issues.
Resolution 952 [COM7/3]	This resolution relates to the issue of Ultra Wide-band (UWB) systems, that have a very large bandwidth and so could operate across many frequency bands, potentially impacting a large number of receivers. These systems are not considered as Industrial, Scientific, and Medical (SIM) applications. There is therefore a need to continue studies about the issues raised by these systems, including sharing studies and regulatory procedures.
Resolution 75	Develop the technical basis for determining the coordination area for coordination of RX ES in the space research service with transmitting stations from HD-FS in the 31.8 - 32.3 GHz and 37 - 38 GHz bands.