Patent ID: 8879997

Claim:
A system, comprising: a base station with two Multiple In-Multiple Out (MIMO) RF ports; and a cross-coupling network configured to vectorially combine power from each of the MIMO RF port to the other MIMO RF port, wherein the cross-coupling network comprises two input ports and two output ports, where a first input signal on one of the two input ports is split into two component signals having a variable power difference between the two component signals, wherein one of the two component signals receiving a variable phase delay to generate a first delayed component signal, where a second input signal on one of the two input ports is split into two component signals having a variable power difference between the two component signals, wherein one of the two component signals receiving a variable phase delay to generate a second delayed component signal, wherein an un-delayed component signal associated with the first input signal is combined with the second delayed component signal associated with the second input signal, wherein the un-delayed component signal associated with the second input signal is combined with the first delayed component signal associated with the first input signal.