A method of operating a wireless transmission system having antenna elements that are driven by corresponding antenna ports is disclosed. The method includes, in a base system, transmitting a first antenna port configuration for receipt by a remote radio head. The method also includes, in the remote radio head, allocating first communication signals among the antenna ports based on the first antenna port configuration, and transmitting the first communication signals to the antenna ports for wireless transfer to user devices. The method also includes, in the base system, identifying active sets that indicate active pilot signals for the user devices, processing the active sets to identify a second antenna port configuration, and transmitting the second antenna port configuration for receipt by the remote radio head. The method also includes, in the remote radio head, allocating second communication signals among the antenna ports based on the second antenna port configuration.