A high-throughput, HT, receiving station configured for a wireless local area network, WLAN, the receiving station configured to: receive a data frame sent from a transmitting station by a number of spatial streams, Nss, concurrently over two or more sets of orthogonal frequency division multiplexed, OFDM, subcarriers, each spatial stream having a modulation and coding scheme, MCS, the data frame including a duration ID field; determine a MCS for a control response frame based on the MCS of each spatial-multiplexed stream of the data frame, the control response frame comprising either an acknowledgement, ACK, frame or a clear-to-send, CTS, frame to be sent in response to receipt of the data frame; and transmit the control response frame to the transmitting station without spatial multiplexing on one of the sets of OFDM subcarriers in accordance with the determined MCS, wherein the MCS for the control response frame is selected from a basic MCS set that is a subset of MCSs associated with a particular Nss, wherein the duration ID field indicates a duration that includes a duration of the transmission of the control response frame, wherein the transmitting station is configured to predict the MCS of the control response frame to be received from the receiving station based on analyzing the MCS of each spatial-multiplexed stream of the data frame sent to the receiving station, and performing the same determination as performed by the receiving station in order to predict the MCS from the basic MCS set being used at the receiving station to determine the MCS used to transmit its control response frame, and wherein the transmitting station is configured to determine the duration ID field based in part on the predicted MCS, and the duration ID field is protected by a network allocation vector, NAV, for the duration indicated. receive a data frame sent from a transmitting station by a number of spatial streams, Nss, concurrently over two or more sets of orthogonal frequency division multiplexed, OFDM, subcarriers, each spatial stream having a modulation and coding scheme, MCS, the data frame including a duration ID field; determine a MCS for a control response frame based on the MCS of each spatial-multiplexed stream of the data frame, the control response frame comprising either an acknowledgement, ACK, frame or a clear-to-send, CTS, frame to be sent in response to receipt of the data frame; and transmit the control response frame to the transmitting station without spatial multiplexing on one of the sets of OFDM subcarriers in accordance with the determined MCS, wherein the MCS for the control response frame is selected from a basic MCS set that is a subset of MCSs associated with a particular Nss, wherein the duration ID field indicates a duration that includes a duration of the transmission of the control response frame, wherein the transmitting station is configured to predict the MCS of the control response frame to be received from the receiving station based on analyzing the MCS of each spatial-multiplexed stream of the data frame sent to the receiving station, and performing the same determination as performed by the receiving station in order to predict the MCS from the basic MCS set being used at the receiving station to determine the MCS used to transmit its control response frame, and wherein the transmitting station is configured to determine the duration ID field based in part on the predicted MCS, and the duration ID field is protected by a network allocation vector, NAV, for the duration indicated.