Assessment of interference to radars operating within the 2 700-2 900 MHz band from broadband wireless systems operating in adjacent frequency bands
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Radio Local Area Network (RLAN) and C-Band Weather Radar Interference Studies
There is a growing concern about the effect that wireless internet devices operating at 5 GHz will have on the operation of weather radars. At the World Radio-communication Conference 2003 (WRC-2003), the decision was made provide a primary allocation to the mobile service for the implementation of wireless access systems (WAS), including radio local area networks (RLAN), in the band 5470-5725 ...
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The 2012 World Radiocommunication Conference allocated the 694–790 MHz (700 MHz) band for the mobile service on a co-primary basis with other services in Region 1 (Europe, Africa, the Middle East). However, countries of Region 1 will also be able to continue the use of these frequencies for their digital terrestrial television services, if necessary. This allocation will be effective immediatel...
متن کاملCompatibility/sharing of airport surveillance radars and meteorological radar with IMT systems within the 2 700-2 900 MHz band
However, as described in the following table, the band 2 700-2 900 MHz is allocated worldwide on a primary basis to radionavigation service, used for air surveillance radars (ASR), including radars providing air surveillance and air traffic control, as well as meteorological radars that are afforded equal status to the aeronautical radionavigation system (ARNS) for operation in this band under ...
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In 2002, the FCC in the US authorized the unlicensed use of the ultrawideband (UWB) frequency spectrum for commercial applications in the range from 3.1 to 10.6 GHz with an emission limit of -41.3 dBm/MHz which is near to the thermal noise floor [1]. UWB communication systems operating in such a wide frequency band and low power emission level could easily be interfered by the existing nearby c...
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The introduction of new mobile services, mainly UMTS (Universal Mobile Telecommunications System) and LTE (Long Term Evolution), in the digital dividend portion of the UHF spectrum (from 790 MHz to 862 MHz), resulting from the digital switchover process, makes necessary the assessment of how much the interference of these signals impacts on QoS of existing DVB-T services, in particular when ope...
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تاریخ انتشار 2015