A wireless communication device (alternatively, device, WDEV, etc.) includes a processing circuitry configured to support communications with other WDEV(s) and to generate and process signals for such communications. In some examples, the device includes a communication interface and a processing circuitry, among other possible circuitries, components, elements, etc. to support communications with other WDEV(s) and to generate and process signals for such communications. A WDEV generates and transmits an OFDM packet that specifies resource allocation of a communication channel for other WDEVs. The WDEV then support communications with the other WDEVs based on the resource allocation of the communication channel. The OFDM packet includes an OFDMA indicator bit and a multi-purpose field that serves different purposes based on setting of the OFDMA indicator bit (e.g., the multi-purpose field is used for different purposes when the OFDMA indicator bit indicates OFDMA or non-OFDMA resource allocation).