The wireless receiver of the present invention accommodates dual-carrier
Evolved EDGE without significantly impacting existing receiver
architectures. The inventive receiver comprises a shared local oscillator
and two image-rejecting downconverters. The local oscillator generates a
local oscillator frequency between two carrier frequencies of adjacent
radio channels. The receiver receives a signal in each of the adjacent
radio channels. In a dual-carrier mode, a first image-rejecting
downconverter uses the local oscillator frequency to downconvert a first
signal received in the first radio channel while rejecting a second
signal received in the second radio channel. A second image-rejecting
downconverter uses the local oscillator frequency to downconvert the
second signal while rejecting the first signal. In a diversity mode, the
first and second image-rejecting downconverters use the local oscillator
frequency to downconvert the signal received in one of the radio channels
while rejecting the signal received in the other radio channel.