Radio receiver and/or transmitter including a programmable equalizer

A radio transmitter comprising:

• a digital modulator operably coupled to convert outbound digital symbols into outbound digital baseband signals, wherein the digital modulator includes:
• pulse shaping module operably coupled to square root raised cosine filter the outbound digital symbols to produce filtered digital symbols;
• COordinate Rotation DIgital Computer (CORDIC) module operably coupled to convert phase and magnitude information of the filtered digital symbols into outbound signals;
• programmable equalizer operably coupled to produced equalized outbound signals by equalizing frequency response of the outbound signals such that in-band frequency response of the radio transmitter approximates frequency response of a square root raised cosine filter;
• compensation module operably coupled to compensate at least one of an imbalance and DC offset of the equalized outbound signals to produce compensated outbound signals;
• an interpolation filter operably coupled to increase sampling rate of the compensated outbound signals to produce up-sampled outbound signals;
• and
• a re-quantization module operably coupled to quantize the up-sampled outbound signals to produce the outbound digital baseband signals;
• digital to analog conversion module operably coupled to convert the outbound digital baseband signals into outbound analog baseband signals;
• up-conversion module operably coupled to convert the outbound analog baseband signals into pre-amplified outbound RF signals;
• and
• a power amplifier operably coupled to amplify the pre-amplified outbound RF signals to produce the outbound RF signals.

A radio transceiver comprising:

• a receiver section;
• a transmitter section;
• and
• a shared programmable equalizer,
• wherein the receiver section includes:
• a low noise amplifier operably coupled to amplify inbound radio frequency (RF) signals to produce amplified inbound RF signals;
• down conversion module operably coupled to convert the amplified inbound RF signals into low intermediate frequency (IF) signals;
• analog to digital converter operably coupled to convert the low IF signals into digital low IF signals;
• and
• a digital demodulator operably coupled to convert the digital low IF signals into inbound digital symbols, wherein the digital demodulator includes:
• baseband conversion module operably coupled to convert the digital low IF signals into digital baseband signals;
• filtering module operably coupled to filter the digital baseband signals to produce filtered digital baseband signals;
• the shared programmable equalizer operably coupled to equalize in-band frequency response of the receiver section such that the in-band frequency response of the receiver section approximates the frequency response of a square root raised cosine filter to produce adjusted digital baseband signals;
• COordinate Rotation DIgital Computer (CORDIC) module operably coupled to produce phase and magnitude information from the adjusted digital baseband signals;
• and
• demodulation module operably coupled to produce the inbound digital symbols from the phase and magnitude information;
• wherein the transmitter section includes:
• a digital modulator operably coupled to convert outbound digital symbols into outbound digital baseband signals, wherein the digital modulator includes:
• pulse shaping module operably coupled to square root raised cosine filter the outbound digital symbols to produce filtered digital symbols;
• COordinate Rotation DIgital Computer (CORDIC) module operably coupled to convert phase and magnitude information of the filtered digital symbols into outbound signals;
• the shared programmable equalizer operably coupled to produce equalized outbound signals by equalizing in-band frequency response of the transmitter section such that the in-band frequency response of the transmitter section approximates the frequency response of a square root raised cosine filter;
• compensation module operably coupled to compensate at least one of an imbalance and DC offset of the equalized outbound signals to produce compensated outbound signals;
• an interpolation filter operably coupled to increase sampling rate of the compensated outbound signals to produce up-sampled outbound signals;
• and
• a re-quantization module operably coupled to quantize the up-sampled outbound signals to produce the outbound digital baseband signals;
• digital to analog conversion module operably coupled to convert the outbound digital baseband signals into outbound analog baseband signals;
• up-conversion module operably coupled to convert the outbound analog baseband signals into pre-amplified outbound RF signals;
• and
• a power amplifier operably coupled to amplify the pre-amplified outbound RF signals to produce the outbound RF signals.