Multiplex time division duplex (TDD) sync detection module

A repeater comprising:

• a first port;
• a second port;
• a first amplification and filtering path coupled between the first port and the second port, wherein the first amplification and filtering path is configured to amplify and filter a first time division duplex (TDD) uplink (UL) signal in a first frequency range;
• a second amplification and filtering path coupled between the first port and the second port, wherein the second amplification and filtering path is configured to amplify and filter a first TDD downlink (DL) signal in the first frequency range;
• a third amplification and filtering path coupled between the first port and the second port, wherein the third amplification and filtering path is configured to amplify and filter a second TDD UL signal in a second frequency range;
• and
• a fourth amplification and filtering path coupled between the first port and the second port, wherein the fourth amplification and filtering path is configured to amplify and filter a second TDD DL signal in the second frequency range;
• and
• a modem configured to:
• receive, for the TDD UL signal and the TDD DL signal, synchronization information for the first frequency range and UL/DL configuration information for the first frequency range;
• generate an UL/DL indication signal for the first frequency range from the synchronization information and the UL/DL configuration information for the first frequency range;
• and
• send the UL/DL indication signal to the repeater;
• receive the UL/DL indication signal at the repeater for the first frequency range;
• generate a switching signal for a first set of one or more switches to switch between the first amplification and filtering path and the second amplification and filtering path based on the UL/DL indication signal;
• and
• send the switching signal to the first set of one or more switches to enable amplification of the first TDD UL signal or the first TDD DL signal;
• generate a second UL/DL indication signal for the second frequency range;
• and
• send the second UL/DL indication signal to the repeater.