Patent ID: 9461719
Filing Date: 2016-10-04
CPC Classification: H04B

Claim Text:
1. An antenna unit for distributing downlink MIMO signals for at least one MIMO service in distributed antenna system (DAS) received over a single coaxial cable coupled to a single coaxial cable port, comprising: a single coaxial cable port coupled to a single coaxial cable, the single coaxial cable port configured to receive non-overlapping frequency MIMO downlink signals of at least one MIMO service over the single coaxial cable; at least two antenna unit downlink frequency shifters configured to frequency shift the non-overlapping frequency MIMO downlink signals to native frequency MIMO downlink signals; and at least two downlink output ports configured to receive and couple the native frequency MIMO downlink signals to at least two MIMO antennas, the at least two MIMO antennas configured to transmit the native frequency MIMO downlink signals, wherein the at least two antenna unit downlink frequency shifters are each configured to frequency shift the non-overlapping frequency MIMO downlink signals in a frequency range of 320 MHz to 520 MHz to native frequency MIMO downlink signals.