The ITU will approve two new standards for...
The ITU will approve two new standards for satellite services and revise three others unless objections are raised by Dec. 28, the director of the Radiocommunication Bureau said in a letter to members. One new recommendation identifies the satellite radio…
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interfaces of international mobile telecommunications advanced (IMT-advanced), a new satellite radio interface based on orthogonal frequency-division multiplexing technology called SAT-OFDM, and a broadband mobile satellite technology called BMSat. IMT-advanced is the international standard for advanced wireless services. The recommendation provides detailed radio interface specs, it said. It also includes the capability to ensure worldwide compatibility, international roaming and access to high-speed data services, the letter said. A second new recommendation is on characteristics and protection criteria for non-geostationary mobile-satellite service (MSS) systems operating in the band 399.9-400.05 MHz. It provides a description and the corresponding protection criteria for broadband noise and narrow-band interference of an MSS system that uses the band in the earth-to-space direction, the letter said. Draft changes to another recommendation define the methodology that should be used to calculate whether a non-geostationary orbit fixed satellite service (FSS) system is in conformity with the equivalent power flux-density (epfd) limits contained within Article 22 of the Radio Regulations, the letter said. The article deals with the requirement for space stations to be fitted with devices to ensure immediate cessation of their radio emissions by telecommand, whenever it’s required under regulatory provisions, it said. The recommendation is applicable to those bands for which epfd limits have been defined, it said. Draft changes to a recommendation on determining the impact on the fixed service operating in the 11.7-12.2 GHz band when geostationary FSS networks in the Americas exceed certain epfd thresholds will account for decisions at previous World Radiocommunication conferences. Other draft changes update guidance on ITU-R recommendations related to systems and networks in the radio-navigation satellite service operating in the bands 1164-1215 MHz, 1215-1300 MHz, 1559-1610 MHz, 5000-5010 MHz and 5010-5030 MHz.