Extreme high throughput future proof preamble design

1. An apparatus of an extremely high throughput (EHT) station (STA), the apparatus comprising memory; and processing circuitry coupled to the memory, the processing circuity configured to:

decode a portion of a physical layer (PHY) protocol data unit (PPDU), the portion of the PPDU comprising a physical universal signal (U-SIG) field, the U-SIG field comprising version independent bits followed by version dependent bits, the version independent bits comprising a PHY version identifier subfield, the PHY version identifier subfield comprising a value indicating a PRY version; and

defer for a duration of the PPDU when the value is different than a value indicating a PRY version of EHT.

2. The apparatus of claim 1 , wherein the processing circuity is further configured to:

decode, before the U-SIG field, a legacy signal field (L-SIG) and a repeated L-SIG (RL-SIG), wherein the RL-SIG is a repeat of the and wherein the L-SIG and the RL-SIG comprise a rate subfield, a length subfield, and a parity bit; and

in response to a determination that the parity bit is a valid parity bit, the rate subfield indicates 6 Mb/x (Mega bit per second, and the length subfield indicates a value that is a multiple of three, determine the PPDU is an EHT PPDU.

3. The apparatus of claim 2 , wherein the processing circuitry is further configured to:

decode, before the L-SIG, a legacy short-training filed (L-STF) and a legacy long-training field (L-LTF).

4. The apparatus of claim I, wherein a size of the U-SIG field is four symbols and the U-SIG field is part of an extended range (ER) preamble.

5. The apparatus of claim 1 , wherein the U-SIG field is mapped to a Binary Phase Shift Keying (BPSK) constellation.

6. The apparatus of claim 1 , wherein the U-SIG field is two symbols.

7. The apparatus of claim 1 , wherein the U-SIG field is 3 bits.

8. The apparatus of claim 1 , wherein the PPDU indicates a bandwidth of 80 MHz (MegaHertz) and wherein the U-SIG field is repeated and identical on each 20 MHz subchannel of the 80 MHz.

9. The apparatus of claim 1 , wherein the deferring further comprises:

otherwise continue to receive the PPDU.

10. The apparatus of claim 1 , wherein the version dependent bits comprise a cyclic redundancy check (CRC) subfield, a tail bits subfield, and a modulation and coding scheme (MCS) subfield.

11. The apparatus of claim 10 , wherein the processing circuitry is further configured to:

decode the CRC subfield;

in response to the CRC subfield indicating an error in the U-SIG field, defer for the duration of the PPDU, otherwise continue to receive the PPDU.

12. The apparatus of claim 10 , wherein the portion of the PPDU is a first portion of the PPDU, and wherein the processing circuitry is further configured to:

decode a second portion of the PPDU, the second portion of the PPDU being after the first portion of the PPDU, wherein the decoding is performed based on a value indicated by the MCS subfield.

13. The apparatus of claim 1 , wherein the value indicating the PHY version of HIT indicates the PPDU is an EHT PPDU and wherein the duration is indicated in a legacy preamble portion of the PPDU or in a media access control (MAC) portion of the PPDU.

14. The apparatus of claim 1 , wherein the version independent bits further comprise an uplink/downlink subfield, a basic service set (BSS) color subfield, a transmission opportunity (TXOP) subfield, and a PPDU type subfield.

15. The apparatus of claim 1 , further comprising: mixer circuitry to downconvert radio frequency (RF) signals to baseband signals; and synthesizer circuitry, the synthesizer circuitry-comprising one of a fractional-N synthesizer or a fractional N/N+1 (N>=1) synthesizer, the synthesizer circuitry configured to generate an output frequency for use by the mixer circuitry, wherein the processing circuitry is configured to decode the baseband signals, the baseband signals including the PPDU.

16. The apparatus of claim 1 , further comprising: mixer circuitry to down-convert radio frequency (RF) signals to baseband signals; and synthesizer circuitry, the synthesizer circuitry comprising a delta-sigma synthesizer, the synthesizer circuitry configured to generate an output frequency for use by the mixer circuitry, wherein the processing circuitry is configured to decode the baseband signals, the baseband signals including the PPDU.

17. A non-transitory computer-readable storage medium that stores instructions for execution by one or more processors of an apparatus of an extremely high throughput (EHT) station (STA), the instructions to configure the one or more processors to:

decode a portion of a physical layer (PHY) protocol data unit (PPDU), the portion of the PPDU comprising an universal signal field (U-SIG) field, the U-SIG field comprising version independent bits followed by version dependent bits, the version independent bits comprising a PHY version identifier subfield, the PHY version identifier subfield comprising a value indicating a PHY version; and

defer for a duration of the PPDU when the value is different than a value indicating a PHY version of EHF.

18. The non-transitory computer-readable storage medium of claim 17 , wherein the instructions further configure the one or more processors to:

decode, before the U-SIG field, a legacy signal field (L-SIG) and a repeated L-SIG SIG), wherein the RL-SIG is a repeat of the L-SIG, and wherein the L-SIG and the RL-SIG comprise a rate subfield, a length subfield, and a parity bit; and

in response to a determination that the parity bit is a valid a parity bit, the rate subfield indicates 6 Mb/s (Mega bit per second), and the length subfield indicates a value that is a multiple of three, determine the PPDU is an EHT PPDU.

19. A method performed on an apparatus of an extremely high throughput (EHT) station (STA), the method comprising:

decoding a portion of a physical layer (PHY) protocol data unit (PPDU), the portion of the PPDU comprising an universal signal field (U-SIG) field, the U-SIG field comprising version independent bits followed by version dependent bits, the version independent bits comprising a PHY version identifier subfield, the PHY version identifier subfield comprising a value indicating a PHY version; and

deferring for a duration of the PPDU when the value is different than a value indicating PHY version of EHT.

20. The method of claim 19 , further comprising:

decoding, before the U-SIG field, a legacy signal field (L-SIG) and a repeated L-SIG SIG), wherein the RE-SIG is a repeat of the L-SIG, and wherein the L-SIG and the RL-SIG comprise a rate subfield, a length subfield, and a parity bit; and

in response to a determination that the parity bit is a valid parity bit, the rate subfield indicates 6 Mb/s (Mega bit per second), and the length subfield indicates a value that is a multiple of three, determining the PPDU is an EHT PPDU.