chebyshev bandpass filter

i wanna design 5 element chebyshev bandpass filter for cellular network but i dont know what the value of the passband ripple should i use..is that 0.2dB or 0.5dB or else..please help me..i need some explanation with the chosen answer..

what is your apllication? for voice or for data? if data, what is your data rate?

It depends on your requirement.