# US 2023/0412349 A1 · Distributed resource unit signaling > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0412349 A1 - Document ID: US20230412349A1 - Status: Published application - Kind: A1 - Application number: 18/302,678 - Filed: 2023-04-18 - Published: 2023-12-21 - Earliest claimed: 2021-04-30 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Lin YANG; Bin TIAN - Web page: https://patentgrep.com/patent/US20230412349A1 ## CPC - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04L 5/0039: {Frequency-contiguous, i.e. with no allocation of frequencies for one user or terminal between the frequencies allocated to another} - H04L 5/0041: {Frequency-non-contiguous} - H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 80/02: Data link layer protocols - H04L 5/0092: {Indication of how the channel is divided} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract This disclosure provides methods, devices and systems for increasing the transmit power of wireless communication devices operating on power spectral density (PSD)-limited wireless channels. Some implementations more specifically relate to trigger frame and physical layer convergence protocol (PLCP) protocol data unit (PPDU) designs that support distributed transmission. In some implementations, an access point (AP) may transmit a trigger frame soliciting a trigger-based (TB) PPDU from a wireless station (STA), where the trigger frame carries RU allocation information indicating a number (N) of tones allocated for the STA and carries tone distribution information indicating whether the N tones are allocated for a contiguous transmission or a distributed transmission. In some other implementations, an AP or a STA may transmit a PPDU carrying distributed signaling information indicating whether the PPDU is transmitted as a contiguous transmission or a distributed transmission. ## Claims ### Claim 1 A method for wireless communication performed by a wireless communication device, comprising: receiving a trigger frame soliciting a trigger-based (TB) physical layer convergence protocol (PLCP) protocol data unit (PPDU) from the wireless communication device, the trigger frame comprising a user information field indicating a resource unit (RU) allocation and a distributed transmission bit indicating a tone distribution information, the tone distribution information indicating whether a number of tones are allocated for a contiguous transmission or a distributed transmission; and transmitting the TB PPDU over a wireless channel based at least in part on a mapping of the number of tones to a number of subcarrier indices associated with the wireless channel according to a first tone plan or a second tone plan based on whether the number of tones are allocated for the contiguous transmission or the distributed transmission, respectively. ### Claim 2 (depends on 1) The method of claim 1, wherein the number of tones represent one or more RUs. ### Claim 3 (depends on 2) The method of claim 2, wherein each of the one or more RUs is mapped to a respective set of contiguous subcarrier indices according to the first tone plan. ### Claim 4 (depends on 2) The method of claim 2, wherein each of the one or more RUs is mapped to noncontiguous subcarrier indices according to the second tone plan. ### Claim 5 (depends on 1) The method of claim 1, wherein RU allocation information associated with the RU allocation and the tone distribution information are carried in the user information field that carries information specific to the wireless communication device. ### Claim 6 (depends on 5) The method of claim 5, wherein the RU allocation information is indicated by a value of an RU allocation subfield of the user information field. ### Claim 7 (depends on 1) The method of claim 1, wherein RU allocation information associated with the RU allocation is carried in the user information field and the tone distribution information is carried in a common information field, or a special user information field, that carries information common to each user associated with the trigger frame. ### Claim 8 (depends on 7) The method of claim 7, wherein the RU allocation information is indicated by a value of an RU allocation subfield of the user information field and the tone distribution information is indicated by a value of the distributed transmission bit. ### Claim 9 (depends on 7) The method of claim 7, wherein the RU allocation information is indicated by a value of an RU allocation subfield of the user information field and the tone distribution information comprises a bitmap, each bit of the bitmap indicating whether a respective subchannel of the wireless channel is allocated for contiguous transmissions or distributed transmissions. ### Claim 10 (depends on 1) The method of claim 1, wherein the TB PPDU includes a physical layer preamble having a universal signal field (U-SIG) that carries distributed signaling information indicating whether the number of tones are allocated for a contiguous transmission or the distributed transmission. ### Claim 11 A wireless communication device comprising: one or more memories that store processor-executable code; and one or more processors coupled with the one or more memories and configured to, in association with executing the code, cause the wireless communication device to: receive a trigger frame soliciting a trigger-based (TB) physical layer convergence protocol (PLCP) protocol data unit (PPDU) from the wireless communication device, the trigger frame comprising a user information field indicating a resource unit (RU) allocation and a distributed transmission bit indicating a tone distribution information, the tone distribution information indicating whether a number of tones are allocated for a contiguous transmission or a distributed transmission; and transmit the TB PPDU over a wireless channel based on a mapping of the number of tones to subcarrier indices associated with the wireless channel according to a first tone plan or a second tone plan based on whether the number of tones are allocated for the contiguous transmission or the distributed transmission, respectively. ### Claim 12 (depends on 11) The wireless communication device of claim 11, wherein the number of tones represent one or more RUs, each of the one or more RUs being mapped to a respective set of contiguous subcarrier indices according to the first tone plan and mapped to noncontiguous subcarrier indices according to the second tone plan. ### Claim 13 (depends on 11) The wireless communication device of claim 11, wherein RU allocation information associated with the RU allocation and the tone distribution information are carried in the user information field that carries information specific to the wireless communication device. ### Claim 14 (depends on 11) The wireless communication device of claim 11, wherein RU allocation information associated with the RU allocation is carried in the user information field and the tone distribution information is carried in a common information field, or a special user information field, that carries information common to each user associated with the trigger frame. ### Claim 15 A method for wireless communication performed by a wireless communication device, comprising: receiving a physical layer convergence protocol (PLCP) protocol data unit (PPDU) having a physical layer preamble followed by a data payload, the physical layer preamble carrying bandwidth information indicating a bandwidth of a wireless channel associated with the PPDU and carrying distributed signaling information indicating whether the PPDU is transmitted as a contiguous transmission or a distributed transmission; demapping the PPDU from a number of subcarrier indices associated with the wireless channel according to a first tone plan or a second tone plan based on whether the PPDU is transmitted as the contiguous transmission or the distributed transmission, respectively, wherein the distributed signaling information comprises a bitmap, each bit of the bitmap indicating whether a respective subchannel of the wireless channel is associated with contiguous transmissions or distributed transmissions; and recovering the data payload based at least in part on demapping the PPDU. ### Claim 16 (depends on 15) The method of claim 15, wherein the PPDU is demapped from one or more sets of contiguous subcarrier indices and each of the one or more sets of contiguous subcarrier indices represents a respective resource unit (RU). ### Claim 17 (depends on 15) The method of claim 15, wherein the PPDU is demapped from noncontiguous subcarrier indices according to the second tone plan. ### Claim 18 (depends on 15) The method of claim 15, wherein the distributed signaling information is indicated by a value of a distributed signaling bit. ### Claim 19 (canceled) ### Claim 20 (depends on 15) The method of claim 15, wherein the distributed signaling information is carried in a universal signal field (U-SIG) that carries information for interpreting one or more subsequent fields of the physical layer preamble. ### Claim 21 (depends on 15) The method of claim 15, wherein the distributed signaling information is carried in a common field of a non-legacy signal field that immediately follows a U-SIG in the physical layer preamble, the common field carrying information common to each user associated with the PPDU. ### Claim 22 (depends on 15) The method of claim 15, wherein the distributed signaling information is carried in a user field of a non-legacy signal field that immediately follows a U-SIG in the physical layer preamble, the user field carrying information specific to the wireless communication device. ### Claim 23 (depends on 15) The method of claim 15, further comprising: transmitting a trigger frame soliciting the PPDU, the trigger frame carrying tone distribution information indicating whether the wireless channel is allocated for the contiguous transmission or the distributed transmission, the PPDU being received responsive to the trigger frame. ### Claim 24 (depends on 23) The method of claim 23, wherein the trigger frame comprises a user information field indicating a resource unit (RU) allocation and a distributed transmission bit indicating a tone distribution information, the tone distribution information indicating whether a number of tones are allocated for a contiguous transmission or a distributed transmission. ### Claim 25 (depends on 24) The method of claim 24, wherein RU allocation information associated with the RU allocation and the tone distribution information are carried in the user information field that carries information specific to the wireless communication device. ### Claim 26 A wireless communication device comprising: one or more memories that store processor-executable code; and one or more processors coupled with the one or more memories and configured to, in association with executing the code, cause the wireless communication device to: receive a physical layer convergence protocol (PLCP) protocol data unit (PPDU) having a physical layer preamble followed by a data payload, the physical layer preamble carrying bandwidth information indicating a bandwidth of a wireless channel associated with the PPDU and carrying distributed signaling information indicating whether the PPDU is transmitted as a contiguous transmission or a distributed transmission; demap the PPDU from a number of subcarrier indices associated with the wireless channel according to a first tone plan or a second tone plan based on whether the PPDU is transmitted as the contiguous transmission or the distributed transmission, respectively, wherein the distributed signaling information comprises a bitmap, each bit of the bitmap indicating whether a respective subchannel of the wireless channel is associated with contiguous transmissions or distributed transmissions; and recover the data payload based at least in part on demapping the PPDU. ### Claim 27 (depends on 26) The wireless communication device of claim 26, wherein the PPDU is demapped from one or more sets of contiguous subcarrier indices and each of the one or more sets of contiguous subcarrier indices represents a respective resource unit (RU). ### Claim 28 (depends on 26) The wireless communication device of claim 26, wherein the distributed signaling information is indicated by a value of a distributed signaling bit. ### Claim 29 (depends on 26) The wireless communication device of claim 26, wherein the distributed signaling information is carried in a universal signal field (U-SIG) that carries information for interpreting one or more subsequent fields of the physical layer preamble. ### Claim 30 (depends on 26) The wireless communication device of claim 26, wherein the distributed signaling information is carried in a common field of a non-legacy signal field that immediately follows a U-SIG in the physical layer preamble, the common field carrying information common to each user associated with the PPDU. ### Claim 31 (depends on 26) The wireless communication device of claim 26, wherein the distributed signaling information is carried in a user field of a non-legacy signal field that immediately follows a U-SIG in the physical layer preamble, the user field carrying information specific to the wireless communication device.