Wireless transmission using fiber link

A wireless transmission and reception system, comprising:

• means for modulating a baseband signal onto a first carrier signal having a designated cable frequency to generate a modulated first carrier signal;
• the baseband signal has a symbol rate in the range from 1.228 Mb/s to 2.0 Mb/s;
• the modulated first carrier signal has a bandwidth less than or equal to 2.5 MHz;
• means for combining the modulated first carrier signal into a channel at the designated cable frequency of a CATV signal having two or more channels;
• wherein
• the two or more channels include a lowest frequency channel at a lowest frequency of the CATV signal and a highest frequency channel at a highest frequency of the CATV signal, and
• the designated cable frequency is greater than the lowest frequency of the CATV signal and less than the highest frequency of the CATV signal;
• means for optically coupling a laser signal into a fiber link responsive to the CATV signal;
• means for converting the laser signal from the fiber link into the CATV signal;
• means for splitting the modulated first carrier signal from the CATV signal;
• means for demodulating the modulated first carrier signal to recover the baseband signal;
• means for mixing the baseband signal onto a second carrier signal having a designated wireless frequency;
• and
• an antenna for broadcasting the second carrier signal.

A transmission and reception system, comprising:

• a modulator outputting a carrier signal modulated by a baseband signal;
• the baseband signal has a symbol rate in the range from 1.228 Mb/s to 2.0 Mb/s;
• a combiner combining the modulated carrier signal into a channel at a designated cable frequency of a CATV signal having two or more channels;
• wherein
• the two or more channels include a lowest frequency channel at a lowest frequency of the CATV signal and a highest frequency channel at a highest frequency of the CATV signal, and
• the designated cable frequency is greater than the lowest frequency of the CATV signal and less than the highest frequency of the CATV signal;
• the modulated carrier signal has a bandwidth less than or equal to 2.5 MHz;
• an analog quality laser source generating a laser signal responsive to the CATV signal;
• a fiber link receiving the laser signal from the laser source and converting the laser signal into the CATV signal;
• a splitter splitting the modulated carrier signal from the CATV signal;
• and
• a demodulation circuit recovering the baseband signal from the modulated carrier signal.

A wireless transmission and reception system, comprising:

• a modulator modulating a baseband signal onto a first carrier signal having a designated cable frequency;
• the baseband signal has a symbol rate in the range from 1.228 Mb/s to 2.0 Mb/s;
• the modulated first carrier signal has a bandwidth less than or equal to 2.5 MHz;
• a combiner combining the modulated first carrier signal into a channel at the designated cable frequency of a CATV signal having two or more channels;
• wherein
• the two or more channels include a lowest frequency channel at a lowest frequency of the CATV signal and a highest frequency channel at a highest frequency of the CATV signal, and
• the designated cable frequency is greater than the lowest frequency of the CATV signal and less than the highest frequency of the CATV signal;
• an analog quality laser source generating a laser signal based on the CATV signal;
• a fiber link receiving the laser signal from the laser source and converting the laser signal into the CATV signal;
• a splitter coupled to the fiber link splitting the modulated first carrier signal from the CATV signal;
• a demodulator to recover the baseband signal from the modulated first carrier signal;
• an upconverter to modulate the recovered baseband signal onto a second carrier signal having a designated wireless frequency;
• and
• an antenna to broadcast the modulated second carrier signal into free space.