ENHANCING CHANNEL AGGREGATION AND PUNCTURING FOR THE IEEE 802.11AX AND BEYOND

A transmitter of an Access Point (AP) for transmitting Physical Layer Protocol Data Units (PPDUs) over an increased number of channel groups each comprising multiple sub-channels, comprising a circuitry configured to encode a high efficiency signal (HE-SIG) field comprising a common signal field, HE-SIG-A, to indicate which of a plurality of sub-channels is active for transmitting a current PPDU and transmit the HE-SIG-A in a preamble of the current PPDU transmitted to one or more stations (STAs) the current PPDU is transmitted on the active sub-channels. Wherein the plurality of sub-channels are arranged in a primary channel group comprising a primary sub-channel and three secondary sub-channels and three secondary channel groups, each of the three secondary channels comprises four secondary sub-channels.