questions in receiver nonlinearity specs for mobile WiMax
时间：04-10
整理：3721RD
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Hello all,
I am trying to get the receiver specs for a mobile WiMax tranceiver, in the standard, the only indication i found to receiver nonlinearity is given by the "adjacent and nonadjacent rejection at BER=10e-6 for 3 dB degradation C/I" numbers.
I really don't understand the term "for 3 dB degradation C/I"?, the standard doesn't give any details or power values for intermodulation tests in order to calculate IIP3 and IIP2, beside that, I can't find the required C/I ratio after the mixer in order to calculate oscilator phase noise.
can any body help?
Thank you very much
Ghada Hamdy
I am trying to get the receiver specs for a mobile WiMax tranceiver, in the standard, the only indication i found to receiver nonlinearity is given by the "adjacent and nonadjacent rejection at BER=10e-6 for 3 dB degradation C/I" numbers.
I really don't understand the term "for 3 dB degradation C/I"?, the standard doesn't give any details or power values for intermodulation tests in order to calculate IIP3 and IIP2, beside that, I can't find the required C/I ratio after the mixer in order to calculate oscilator phase noise.
can any body help?
Thank you very much
Ghada Hamdy
what is the frequency band of Wimax?What requirements are needed for PA in Wimax?
the mobile Wimax is defined in licensed bands: 2.3-2.x, 3.x GHz. PA must have a 45 dB dynamic range and a limitied relative constellation errors, -30 dB for 64-QAM-3/4 case. Beside a spectral flatness given by the standard and spectral mask left to local regulations.