System and method for wlan ofdma design of subcarrier groups and frame format

摘要: Embodiments are provided for WLAN Orthogonal Frequency Division Multiple Access (OFDMA) design of subcarrier groups and corresponding frame format. An embodiment method includes grouping a plurality subcarriers OFDMA transmissions into in accordance with pre-defined structure subcarriers. The further allocating the to users, signaling, map users. According structure, each one consecutive subcarriers, non-consecutive or combination according deterministic structure. is signaled using an PPDU comprising legacy preamble portion configured silence users that do not use communications, indicating map, data portion.