ITU member countries will approve revisions to two recommendation...
ITU member countries will approve revisions to two recommendations on International Mobile Telecommunications- 2000 unless objections arise by Oct. 8, the Radiocommunication Bureau said in a letter. The ITU-R study group on terrestrial services and the working party on…
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IMT preliminarily approved the actions, following a 2007 Radiocommunication Assembly decision seeking “urgent work” on the IEEE 802.16/WiMAX-variant in the recommendations to address emission mask and adjacent channel leakage ratio (ACLR), a meeting report said. Deleted from both recommendations was identical text that said: “The ACLR parameters in this annex are not intended to be a mandatory regulatory obligation, as it is up to the administrations what part of a Recommendation they want to use in national regulations.” Proposed changes to recommendations on generic unwanted emission characteristics of mobile and base stations using IMT-2000 terrestrial radio interfaces include a new section on unwanted emission limits for IMT-2000 CDMA multi- carrier (CDMA-2000) base stations operating in certain arrangements named by 3GPP2, documents said. New sections were added to each recommendation to note possible significant differences between calculated ACLR information and specified values, the draft texts said. Modifications were also proposed to annexes on IMT-2000 CDMA direct spread universal terrestrial radio access (UTRA) FDD mobile base stations. New frequency bands 2,300-2,400 MHz and 3,400- 3,600 MHz were added to a section on the IEEE 802.16/WiMAX variant, the letter said.