EHT Capability Design for PPE Threshold

A method for generating a PHY data frame at a first station (STA) device for transmission to a second STA device in a wireless area network in accordance with an Extremely High Throughput (EHT) communication protocol, comprising:

• receiving, from the second STA device, a MAC control management frame having an EHT capability element comprising one or more fields indicating whether a packet extension value longer than 16 μs is required by the second STA device to satisfy a processing-time constraint imposed by the second STA device;
• processing, at the first STA device, the EHT capability element to extract the one or more fields which comprise:
• a common nominal packet padding field having a plurality of values to signal different packet extension values for use with all transmission constellations, spatial streams Nss, and resource unit (RU) allocations supported by the second STA device, including at least one packet extension value longer than 16 μs;
• and/or
• a PHY packet extension threshold (PPET) field comprising a plurality of PPET values to signal packet extension values including at least one packet extension value longer than 16 μs;
• generating, by the first STA device, an EHT PHY data frame destined to at least the second STA device comprising at least (i) one or more information and/or data fields, and (ii) a packet extension field having a duration that is longer than 16 μs that is computed from the one or more fields extracted from the EHT capability element.

An apparatus for transmitting orthogonal frequency division multiplexing (OFDM) symbols for a data unit in a wireless personal area network in accordance with IEEE 802.11be protocol, comprising:

• a transceiver to exchange data with a wireless device;
• a processor;
• and
• a memory storing instructions that, when executed by the processor, cause the apparatus to:
• receive, from a first station (STA) device, a MAC control management frame having an EHT capability element comprising one or more fields indicating whether a packet extension value longer than 16 μs is required by the first STA device to satisfy a processing-time constraint imposed by the first STA device;
• process, at the apparatus, the EHT capability element to extract the one or more fields which comprise:
• a common nominal packet padding field having a plurality of values to signal different packet extension values for use with all transmission constellations, spatial streams Nss, and resource unit (RU) allocations supported by the first STA device, including at least one packet extension value longer than 16 μs;
• and/or
• a PHY packet extension threshold (PPET) field comprising, for each Nss and RU combination used to transmit data to the first STA device using the IEEE 802.11be protocol, a plurality of PPET values to signal packet extension values including at least one packet extension value longer than 16 μs;
• generate, by the apparatus, an EHT PHY data frame destined to at least the first STA device comprising at least (i) one or more information and/or data fields, and (ii) a packet extension field having a duration that is longer than 16 μs that is computed from the one or more fields extracted from the EHT capability element.

A receiving station for signaling a packet padding capability in a wireless area network in accordance with an Extremely High Throughput (EHT) communication protocol, comprising:

• a transceiver to exchange data with a wireless device;
• a processor;
• and
• a memory storing instructions that, when executed by the processor, cause the apparatus to:
• construct, at the receiving station, a MAC control management frame having an EHT capability element comprising one or more fields indicating whether a packet extension longer than 16 μs is required by the receiving station to satisfy a processing-time constraint imposed by the receiving station, where the one or more fields comprise:
• a common nominal packet padding field having a plurality of values to signal different packet extension values for use with all transmission constellations, spatial streams Nss, and resource unit (RU) allocations supported by the receiving STA device, including at least one packet extension value longer than 16 μs;
• and/or
• a PHY packet extension threshold (PPET) field comprising, for each Nss and RU combination used to transmit data to the receiving station using the EHT communication protocol, a plurality of PPET values to signal packet extension values including at least one packet extension value longer than 16 μs;
• and
• send the MAC control management frame from the receiving station to a first station which performs data communication with the receiving station by using the packet extension value longer than 16 μs when supported by the receiving station.