Physical layer (PHY) packet design for power spectral density (PSD) limits
This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for physical layer (PHY) packet design for power spectral density (PSD) limits. In some implementations, a wireless communication device generates a plurality of PHY convergence protocol (PLCP) protocol data unit (PPDU) duplicates configured for transmission over a selected bandwidth, and transmits each PPDU duplicate of the plurality of PPDU duplicates on a corresponding frequency subband of a plurality of different frequency subbands. In some other implementations, the wireless communication device generates a PPDU for transmission over a set of duplicated resource units (RUs) allocated to the wireless communication device, and transmits the PPDU over the allocated set of duplicated RUs.
1 . A method for wireless communication by an apparatus of a wireless communication device, comprising:
generating a physical (PHY) layer convergence protocol (PLCP) protocol data unit (PPDU), wherein the PPDU is an extremely high throughput (EHT) PPDU that includes a pre-EHT portion containing a universal signal (U-SIG) field and an EHT portion containing a data field, wherein the U-SIG field is duplicated according to a first duplication format corresponding to a first frequency bandwidth, wherein the data field is duplicated according to a second duplication format corresponding to a second frequency bandwidth, and wherein the second frequency bandwidth is greater than the first frequency bandwidth by an integer multiple greater than 1; and
transmitting the PPDU via a set of resource units (RUs), each RU of the set of RUs including the duplication of the data field of the PPDU.
2 . The method of claim 1 , wherein the PPDU comprises a single- user (SU) PPDU.
3 . The method of claim 1 , wherein a power spectral density (PSD) limit applicable to transmission of the PPDU is associated with a total frequency bandwidth spanned by the set of RUs.
4 . The method of claim 3 , wherein the total frequency bandwidth is at least twice a respective frequency bandwidth of a respective RU.
5 . The method of claim 1 , wherein a size of respective RUs in the set of RUs is associated with a power spectral density (PSD) limit applicable to a frequency bandwidth of a wireless channel.
6 . The method of claim 1 , wherein the set of RUs is obtained via duplication of a RU a quantity N of times, N being an integer greater than 1.
7 . The method of claim 1 , wherein the data field of the PPDU is duplicated in frequency, and the PPDU is transmitted over each RU of the set of RUs.
8 . A wireless communication device, comprising:
a processing system configured to:
generate a physical (PHY) layer convergence protocol (PLCP) protocol data unit (PPDU), wherein the PPDU is an extremely high throughput (EHT) PPDU that includes a pre-EHT portion containing a universal signal (U-SIG) field and an EHT portion containing a data field, wherein the U-SIG field is duplicated according to a first duplication format corresponding to a duplication of the data field in a first frequency bandwidth, wherein the data field is duplicated according to a second duplication format corresponding to a second frequency bandwidth, and wherein the second frequency bandwidth is greater than the first frequency bandwidth by an integer multiple greater than 1; and
an interface configured to:
transmit the PPDU via a set of resource units (RUs), each RU of the set of RUs including the duplication of the data field of the PPDU.
9 . The wireless communication device of claim 8 , wherein the PPDU comprises a single-user (SU) PPDU.
10 . The wireless communication device of claim 9 , wherein a power spectral density (PSD) limit applicable to transmission of the PPDU is associated with a total frequency bandwidth spanned by the set of RUs.
11 . The wireless communication device of claim 10 , wherein the total frequency bandwidth is at least twice a respective frequency bandwidth of a respective RU.
12 . The wireless communication device of claim 8 , wherein a size of respective RUs in the set of RUs is associated with a power spectral density (PSD) limit applicable to a frequency bandwidth of a wireless channel.
13 . The wireless communication device of claim 8 , wherein the set of RUs is obtained via duplication of a RU a quantity N of times, N being an integer greater than 1.
14 . The wireless communication device of claim 8 , wherein the data field of the PPDU is duplicated in frequency, and the PPDU is transmitted over each RU of the set of RUs.
15 . An apparatus of a wireless communication device, comprising:
means for generating a physical (PHY) layer convergence protocol (PLCP) protocol data unit (PPDU), wherein the PPDU is an extremely high throughput (EHT) PPDU that includes a pre-EHT portion containing a universal signal (U-SIG) field and an EHT portion containing a data field, wherein the U-SIG field is duplicated according to a first duplication format corresponding to a duplication of the data field in a first frequency bandwidth, wherein the data field is duplicated according to a second duplication format corresponding to a second frequency bandwidth, and wherein the second frequency bandwidth is greater than the first frequency bandwidth by an integer multiple greater than 1; and
means for transmitting the PPDU via a set of resource units (RUS), each RU of the set of RUs including the duplication of the data field of the PPDU.
16 . The apparatus of claim 15 , wherein the PPDU comprises a single-user (SU) PPDU.
17 . The apparatus of claim 15 , wherein a power spectral density (PSD) limit applicable to transmission of the PPDU is associated with a total frequency bandwidth spanned by the set of RUs.
18 . The apparatus of claim 17 , wherein the total frequency bandwidth is at least twice a respective frequency bandwidth of a respective RU.
19 . The apparatus of claim 15 , wherein a size of respective RUs in the set of RUs is associated with a power spectral density (PSD) limit applicable to a frequency bandwidth of a wireless channel.
20 . The apparatus of claim 15 , wherein the set of RUs is obtained via duplication of a RU a quantity N of times, N being an integer greater than 1.
21 . The apparatus of claim 15 , wherein the data field of the PPDU is duplicated in frequency, and the PPDU is transmitted over each RU of the set of RUs.
22 . A non-transitory computer-readable medium storing code for wireless communication at a wireless communication device, the code comprising instructions executable by a processor to:
generate a physical (PHY) layer convergence protocol (PLCP) protocol data unit (PPDU), wherein the PPDU is an extremely high throughput (EHT) PPDU that includes a pre- EHT portion containing a universal signal (U-SIG) field and an EHT portion containing a data field, wherein the U-SIG field is duplicated according to a first duplication format corresponding to a first frequency bandwidth, wherein the data field is duplicated according to a second duplication format corresponding to a second frequency bandwidth, and wherein the second frequency bandwidth is greater than the first frequency bandwidth by an integer multiple greater than 1; and
transmit the PPDU via a set of resource units (RUs), each RU of the set of RUs including the duplication of the data field of the PPDU.
23 . The non-transitory computer-readable medium of claim 22 , wherein the PPDU comprises a single-user (SU) PPDU.
24 . The non-transitory computer-readable medium of claim 23 , wherein a power spectral density (PSD) limit applicable to transmission of the PPDU is associated with a total frequency bandwidth spanned by the set of RUs.
25 . The non-transitory computer-readable medium of claim 24 , wherein the total frequency bandwidth is at least twice a respective frequency bandwidth of a respective RU.
26 . The non-transitory computer-readable medium of claim 22 , wherein a size of respective RUs in the set of RUs is associated with a power spectral density (PSD) limit applicable to a frequency bandwidth of a wireless channel.
27 . The non-transitory computer-readable medium of claim 22 , wherein the set of RUs is obtained via duplication of a RU a quantity N of times, N being an integer greater than 1.
28 . The non-transitory computer-readable medium of claim 22 , wherein the data field of the PPDU is duplicated in frequency, and the PPDU is transmitted over each RU of the set of RUs.