Distributed-tone RU on frequency subblock of wide-bandwidth PPDU

A method, comprising:

• generating a distributed-tone resource unit (dRU) with subcarriers of the dRU distributed on a frequency subblock of two or more frequency subblocks in a bandwidth;
• and
• communicating using the dRU,
• wherein the dRU is generated on:
• a 20 MHz frequency subblock with the bandwidth being 40 MHz, 80 MHZ, 160 MHz or 320 MHz, or
• a 40 MHz frequency subblock with the bandwidth being 80 MHz, 160 MHz or 320 MHz, or
• an 80 MHz frequency subblock with the bandwidth being 160 MHz or 320 MHz, or
• a 160 MHz frequency subblock with the bandwidth being 320 MHZ,
• wherein tone indices of the dRU are expressed as:
• dRUBW20+(−K1st_bw20+K1st), or
• dRU=Tone-Range (dTP), or
• k=K1st+Ktd,
• wherein:
• dRUBW20 denotes dRU indices on a 20 MHz bandwidth,
• K1st denotes a first left-hand side tone of each frequency subblock of the one or more frequency subblocks and is subblock-dependent,
• K1st_bw20 denotes a first left-hand side tone of an overall dRU table on the 20 MHz bandwidth,
• Tone-Range denotes a range of tones on each frequency subblock of the one or more frequency subblocks and is subblock-dependent,
• dTP denotes a table of indices of positive integers representing a tone distribution pattern,
• k denotes the tone indices of the dRU,
• ktd denotes a tone distribution pattern of Ktd(r, k)=RUstart(r)+li+j*Np, and
• wherein:
• i=0, 1, 2, . . . , L−1;
• j=0, 1, 2, . . .
• ⌈
• N
• s
• ⁢
• t
• -
• ⁢
• r
• ⁢
• u
• L
• ⌉
• -
• 1
• ;
• k=0, 1, 2, . . . , Nst_ru−1;
• r=1, 2, . . . Nru, with r being a logical resource unit (RU) index;
• li∈Ωru={1, . . . . lL-1};
• L=|Ωru|;
• Nst_ru=26, 52,106, 242, 484, 996 for a 26-tone, 52-tone, 106-tone, 242-tone, 484-tone or 996-tone RU, respectively,
• RUstart(r) represents a first or starting tone index for dRUr,
• li represents tones within one repetition distance or one repetition period,
• Np represents a repetition distance or repetition period,
• L represents a number of tones within one repetition distance or one repetition period,
• Nst_ru represents a number of subcarriers for the dRU, and
• Nru represents a number of RUs for a given RU size in a given bandwidth.

An apparatus, comprising:

• a transceiver configured to communicate wirelessly;
• and
• a processor coupled to the transceiver and configured to perform operations comprising:
• generating a physical-layer protocol data unit (PPDU) with subcarriers of a resource unit (RU) distributed on a frequency subblock of a plurality of frequency subblocks of a wide bandwidth;
• and
• transmitting, via the transceiver, the PPDU over the wide bandwidth,
• wherein each of the plurality of frequency subblocks comprises a 20 MHz, 40 MHz or 80 MHz frequency subblock,
• wherein the wide bandwidth comprises an 80 MHz, 160 MHz or 320 MHz bandwidth,
• wherein the subcarriers of the RU are distributed on the frequency block by applying a constant shift to a distributed-tone RU (dRU) on a 20 MHz, 40 MHz or 80 MHz bandwidth, and
• wherein a distribution of the subcarriers of the RU on the frequency subblock is expressed by:
• kdRU_i=kdRU+Kshift(i)
• wherein:
• kdRu denotes dRU subcarrier indices for the dRU on the 20 MHz, 40 MHz or 80 MHz bandwidth,
• kdRu_i denotes dRU subcarrier indices on an ith frequency subblock,
• kshift (i) denotes a value of the constant shift, and
• i denotes a frequency subblock index of the plurality of frequency subblocks.