ITU

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Satellite services

Number Category Group Title

42-1/4

(S1) WP4A

Characteristics of antennas at earth stations in the fixed-satellite service  

46-3/4

(S2) WP4B

Preferred multiple-access characteristics in the fixed-satellite service  

70-1/4

(S3) WP4A

Protection of the geostationary-satellite orbit against unacceptable interference from transmitting earth stations in the fixed-satellite service at frequencies above 15 GHz  

73-2/4

(S2) WP4B

Availability and interruptions to traffic on digital paths in the fixed satellite service  

75-4/4

(S2) WP4B

Performance objectives of international digital transmission link in the fixed-satellite and mobile-satellite services  

83-6/4

(S1) WP4C

Efficient use of the radio spectrum and frequency sharing within the mobile-satellite service  

84-4/4

(S2) WP4C

Use of non-geostationary-satellite orbits in mobile-satellite services  

87-4/4

(S2) WP4B/WP4C

Transmission characteristics for a mobile-satellite communication system  

88-1/4

(S3) WP4C

Propagation and mobile earth station antenna characteristics for mobile-satellite services  

91-1/4

(S2) WP4C

Technical and operating characteristics of the radiodetermination-satellite service  

109-1/4

(S1) WP4C

Global Maritime Distress and Safety System requirements for mobile-satellite systems operating in the bands 1 530-1 544 MHz and 1 626.5-1 645.5 MHz  

110-1/4

(S2) WP4C

Interference to the aeronautical mobile-satellite (R) service  

201-1/4

(S2) WP4C

Frequency sharing between mobile-satellite services and other services  

203-1/4

(S2) WP4A

The impact of using small antennas on the efficient use of the geostationary-satellite orbit  

205-1/4

(S2) WP4A/WP4C

Frequency sharing between non-geostationary satellite feeder links in the fixed-satellite service used by the mobile-satellite service  

208/4

(S3) WP4A

Use of statistical and stochastic methods in evaluation of interference between satellite networks in the fixed-satellite service  

209/4

(S1) WP4A

The use of frequency bands allocated to the fixed-satellite service for both the up and down links of geostationary-satellite systems  

210-1/4

(S1) WP4C

Technical characteristics for mobile Earth stations operating with global non geostationary-satellite systems in the mobile-satellite service in the band 1-3 GHz  

211-2/4

(S2) WP4C

Interference criteria and calculation methods for the mobile-satellite service  

214/4

(S2) WP4A

Technical implications of steerable and reconfigurable satellite beams  

217-2/4

(S1) WP4C

Interference to the radionavigation-satellite service in the ICAO global navigation satellite system  

218-1/4

(S2) WP4B

Compatibility between on-board processing satellites in the fixed-satellite service and terrestrial networks  

227/4

(S1) WP4B/WP4C

Technical and operational characteristics of emergency communications in the mobile-satellite service  

231/4

(S2) WP4A

Sharing between networks of the fixed-satellite service using non-geostationary satellites and other networks of the fixed-satellite service  

233/4

(S2) WP4A/WP4B

Dedicated user digital satellite communications systems and their associated architectures  

236/4

(S2) WP4A

Interference criteria and calculation methods for the fixed-satellite service  

244/4

(C2) WP4A

Sharing between feeder links of the mobile-satellite (non-geostationary) service in the band 5 091-5 250 MHz and the aeronautical radionavigation service in the band 5 000-5 250 MHz  

245-1/4

(S1) WP4A/WP4C

Out-of-band and spurious emission limits  

248/4

(S3) WP4A

Frequency sharing between systems in the fixed-satellite service and wireless digital networks around 5 GHz  

263-1/4

(S1) WP4B

Performance objectives of digital links in the fixed-satellite service for transmission of Internet or higher layer Protocol packets  

264/4

(C2) WP4A

Technical and operational characteristics of networks of the fixed-satellite service operating above 275 GHz  

266/4

(C1) WP4A

Technical characteristics of high-density fixed-satellite service earth stations operating with geostationary satellite orbit fixed-satellite service networks in the 20/30 GHz bands  

267/4

(S2) WP4A

Technical and operational considerations relating to the advance publication, coordination and notification of fixed-satellite networks  

268/4

(S2) WP4A

Development of methodologies for the assessment of satellite unwanted emission levels before launch  

270-1/4

(S1) WP4A

Fixed-satellite service systems using very wideband spreading signals  

271/4

(S1) WP4B

Interference between satellite news gathering (SNG) carriers by unintentional access  

272/4

(S2) WP4A

Frequency sharing between the FSS and the space research service in the 37.5-38 GHz and 40-40.5 GHz bands  

273/4

(S1) WP4A/WP4B/WP4C

Support of the modernization of civil aviation telecommunication systems and the extension of telecommunication systems to remote and developing regions with current and planned satellite networks  

274/4

(S1) WP4A

Technical methods for improving the spectrum/orbit utilization  

275/4

(S2) WP4B

Performance objectives of digital links in the fixed-satellite and mobile-satellite services forming elements of the Next Generation Network  

276/4

(S2) WP4B

Availability of digital paths in mobile-satellite services  

277/4

(S2) WP4B

Performance objectives for digital mobile-satellite services  

278/4

(S1) WP4A

Use of operational facilities to meet power flux-density limitation under Article 21 of the Radio Regulations  

279/4

(S1) WP4A

Satellite broadcasting of high definition television  

280/4

(S1) WP4A

Receiving earth station antennas for the broadcasting satellite service  

281/4

(S1) WP4A

Digital techniques in the broadcasting satellite service (sound and television)  

282/4

(S1) WP4A

Frequency sharing issues related to the introduction of the broadcasting satellite service (sound) in the frequency range 1 3 GHz  

283/4

(S1) WP4A

Sharing studies between high definition television in the broadcasting satellite service and other services  

284/4

(S1) WP4A

Spectrum management issues related to the introduction of the broadcasting-satellite service (sound) in the frequency range 1 3 GHz  

285/4

(S1) WP4A

Digital broadcasting of multiple services and programmes in the broadcasting satellite service  

286/4

(S2) WP4C

Contributions of the mobile and amateur services and associated satellite services to the improvement of disaster communications  

287/4

(S1) WP4B

Technical and operational characteristics for packet network transmission in mobile-satellite services  

288/4

(S2) WP4C

Characteristics and operational requirements of radionavigation-satellite service (space-to-Earth, space-to-space, Earth-to-space) systems  

289/4

(S1) WP4B

Interactive satellite broadcasting systems (television, sound and data)  

290/4

(S1) WP4B

Broadcasting-satellite means for public warning, disaster mitigation and relief