Communication method and device

A communication method, comprising:

• receiving a first radio frequency optical signal;
• converting the first radio frequency optical signal into a twelfth radio frequency electrical signal;
• performing one or more of filtering or amplification processing based on the twelfth radio frequency electrical signal, to obtain a thirteenth radio frequency electrical signal;
• and
• sending the thirteenth radio frequency electrical signal.

An apparatus, comprising:

• a first optical module configured to convert a received first radio frequency optical signal into a twelfth radio frequency electrical signal;
• a first filter amplifier configured to perform filtering and amplification based on the twelfth radio frequency electrical signal, to obtain a thirteenth radio frequency electrical signal;
• and
• a first antenna configured to transmit the thirteenth radio frequency electrical signal.

A communication apparatus, comprising:

• a second optical module configured to:
• receive a first digital optical signal;
• and
• convert the first digital optical signal into a first digital electrical signal;
• a gateway control module configured to convert the first digital electrical signal into a second digital electrical signal, wherein the first digital electrical signal and the second digital electrical signal correspond to different communication protocols;
• a radio frequency conversion module configured to convert the second digital electrical signal into a first radio frequency electrical signal;
• and
• a radio frequency transceiver module configured to:
• obtain N first radio frequency optical signals based on the first radio frequency electrical signa;
• and
• send the N first radio frequency optical signals, wherein N is a positive integer greater than or equal to 1.