An apparatus and method for control channel transmission in a wireless network are disclosed. A disclosure is provided with at least one resource block (RB) including a first control channel element associated with a first antenna port (AP) and a second control channel element associated with a second AP. The first and second control channel elements might be used for transmission of a single control channel, and a first reference signal sequence associated with one of the first AP and the second AP is selected for transmission of the single control channel based on a control channel element index value, such that a resource element of the at least one RB can be detected to decode the first control channel element and the second control channel element.