Wireless communications network using frequency conversion of MIMO signals

A repeater for wireless communication comprising:

• circuitry configured to receive communication signals on a first MIMO-coded information channel and a second MIMO-coded information channel, wherein a frequency of the first MIMO-coded information channel is outside frequency bands allocated to mobile radio for wireless communication, wherein a frequency of the second MIMO-coded information channel is different than the frequency of the first MIMO-coded information channel;
• a converting device configured to convert the frequency of the first MIMO-coded information channel in at least one communication direction to a frequency within the frequency bands allocated to mobile radio for wireless communication;
• and
• circuitry configured to transmit the first MIMO-coded information channel and the second MIMO-coded information channel in the at least one communication direction, wherein the first MIMO-coded information channel and the second MIMO-coded information channel are transmitted using equal frequencies.

A distributed antenna system (DAS) for wireless communication comprising:

• at least one remote unit configured to receive a first MIMO-coded information channel and a second MIMO-coded information channel at a first frequency;
• a converting device configured to convert a frequency of the first MIMO-coded information channel to a second frequency using information from a test receiver configured to determine unused frequency ranges that are situated outside the frequency bands allocated to mobile radio for wireless communication, wherein the test receiver is communicatively coupled with the converting device, wherein the converting device is configured to convert the first MIMO-coded information channel to the second frequency in at least one communication direction, wherein the second frequency is within the unused frequency ranges situated outside the frequency bands allocated to mobile radio;
• and
• a master unit communicatively coupled to the at least one remote unit via one or more signal lines, wherein the master unit is configured to receive a transmission signal containing the MIMO-coded information channels via the one or more signal lines, wherein the master unit comprises:
• circuitry configured to transmit the first MIMO-coded information channel and the second MIMO-coded information channel in the at least one communication direction, wherein the first MIMO-coded information channel and the second MIMO-coded information channel are transmitted using different frequencies compared to each other.

A distributed antenna system (DAS) for wireless communication comprising:

• a master unit configured to receive communication signals on a first MIMO-coded information channel and a second MIMO-coded information channel, wherein a frequency of the first MIMO-coded information channel is outside frequency bands allocated to mobile radio for wireless communication, wherein a frequency the second MIMO-coded information channel is within the frequency bands allocated to mobile radio for wireless communication;
• a converting device configured to convert the frequency of the first MIMO-coded information channel in at least one communication direction to a frequency within the frequency bands allocated to mobile radio for wireless communication;
• and
• at least one remote unit communicatively coupled to the master unit via one or more signal lines, wherein the at least one remote unit comprises:
• circuitry configured to transmit a communication signal wirelessly with the first MIMO-coded information channel and the second MIMO-coded information channel in the at least one communication direction, wherein the first MIMO-coded information channel and the second MIMO-coded information channel are transmitted using equal frequencies.