A first wireless communication device capable of wirelessly communicating with a second device within a wireless communication environment , the first wireless communication device comprising: a framing module configured to generate a data sub-frame for transmission, wherein the data sub-frame includes a channel estimation field that includes a first polarity portion and a second polarity portion , and wherein the first polarity portion is designated for transmission in the first polarity, and the second polarity portion is designated for transmission in the second polarity; a polarity setting module configured to set a polarity mode as one of a first polarity mode, a second polarity mode, or a dynamic polarity mode based on a polarity instruction signal received from the second device , wherein the polarity instruction signal is determined based on the channel estimation field , and wherein the framing module is further configured to generate a remainder of the data sub-frame based on the polarity mode set by the polarity setting module : when the first polarity mode is set, the framing module is configured to generate the remainder of the data sub-frame to have the first polarity, when the second polarity mode is set, the framing module is configured to generate the remainder of the data sub-frame to have the second polarity, and when the dynamic polarity mode is set, the framing module is configured to generate the remainder of the data sub-frame such that first segments of the data sub-frame have the first polarity and second segments of the data sub-frame have the second polarity. a framing module configured to generate a data sub-frame for transmission, wherein the data sub-frame includes a channel estimation field that includes a first polarity portion and a second polarity portion , and wherein the first polarity portion is designated for transmission in the first polarity, and the second polarity portion is designated for transmission in the second polarity; a polarity setting module configured to set a polarity mode as one of a first polarity mode, a second polarity mode, or a dynamic polarity mode based on a polarity instruction signal received from the second device , wherein the polarity instruction signal is determined based on the channel estimation field , and wherein the framing module is further configured to generate a remainder of the data sub-frame based on the polarity mode set by the polarity setting module : when the first polarity mode is set, the framing module is configured to generate the remainder of the data sub-frame to have the first polarity, when the second polarity mode is set, the framing module is configured to generate the remainder of the data sub-frame to have the second polarity, and when the dynamic polarity mode is set, the framing module is configured to generate the remainder of the data sub-frame such that first segments of the data sub-frame have the first polarity and second segments of the data sub-frame have the second polarity. when the first polarity mode is set, the framing module is configured to generate the remainder of the data sub-frame to have the first polarity, when the second polarity mode is set, the framing module is configured to generate the remainder of the data sub-frame to have the second polarity, and when the dynamic polarity mode is set, the framing module is configured to generate the remainder of the data sub-frame such that first segments of the data sub-frame have the first polarity and second segments of the data sub-frame have the second polarity. <EOS>