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WO-2026095692-A1 - CONFIGURATION OF TRIGGER FRAME

WO2026095692A1WO 2026095692 A1WO2026095692 A1WO 2026095692A1WO-2026095692-A1

Abstract

The present disclosure relates to a trigger frame structure for supporting a new PHY function in an ultra-high reliability (UHR) or IEEE 802.11bn-based wireless LAN (WLAN) system. Specifically, the trigger frame of the present invention may include a common info field, a special user info field, and a UHR variant user info field. The common info field may include a 4-bit subfield indicating whether a distributed-tone resource unit (DRU) or a regular resource unit (RRU) is requested, and the special user info field may include a PHY version identification subfield indicating whether a trigger-based physical protocol data unit (TB-PPDU) is related to the UHR. In addition, the UHR variant user info field may include a subfield indicating whether unequal modulation (UEQM) is applied to the TB-PPDU. Accordingly, efficient trigger-based transmission control is possible in a system to which various PHY functions are applied.

Inventors

  • LIM, DONGGUK
  • CHOI, JINSOO
  • PARK, EUNSUNG
  • JUNG, INSIK

Assignees

  • 엘지전자 주식회사

Dates

Publication Date
20260507
Application Date
20251030
Priority Date
20241031

Claims (12)

  1. Create a trigger frame, but The above trigger frame includes a common info field, a special user info field, and an ultra-high reliability (UHR) variant user info field, wherein The above common information field includes a 4-bit subfield, and the 4-bit subfield includes information regarding whether a DRU (distributed-tone resource unit) or a RRU (regular resource unit) is solicited by the trigger frame. The above special user information field includes a 3-bit PHY version ID (identifier) subfield, and the PHY version ID subfield includes information regarding whether the TB PPDU (solicited trigger-based physical protocol data identity) requested by the trigger frame is related to UHR, and Step, wherein the above UHR variant user information field includes a 1-bit subfield, and the 1-bit subfield includes information related to whether UEQM (unequal modulation) is applied to the TB PPDU; and Step of transmitting the above trigger frame A method including
  2. In paragraph 1, The above 4-bit subfield comprises a first bit regarding whether a DRU is applied to a first 80MHz frequency subblock related to the TB PPDU, a second bit regarding whether a DRU is applied to a second 80MHz frequency subblock related to the TB PPDU, a third bit regarding whether a DRU is applied to a third 80MHz frequency subblock related to the TB PPDU, and a fourth bit regarding whether a DRU is applied to a fourth 80MHz frequency subblock related to the TB PPDU. Method of including.
  3. In paragraph 1, The above special user information field is continuous with the above common information field, and The above special user information field includes a 12-bit subfield having a value of 2007, and The above PHY version ID subfield is consecutive to the above 12-bit subfield method.
  4. In paragraph 1, The above UHR variant user information field is continuous with the above special user information field, and The above UHR variant user information field includes a 12-bit AID (Association ID) subfield, an 8-bit RU (Resource Unit) allocation subfield, a 1-bit uplink FEC (Forward Error Correction) coding type subfield, a 5-bit uplink MCS (Modulation and Coding Scheme) subfield, a 1-bit 2xLDPC subfield related to the length of the LDPC (low density parity check) codeword, a 7-bit uplink target receive power subfield, and a 1-bit segment subfield indicating a 160 MHz segment of the uplink RU. method.
  5. In paragraph 1, Step of receiving a TB PPDU solicited by the above trigger frame including more method.
  6. At least one processor; and It includes at least one computer memory that is operablely connectable to the at least one processor and stores instructions that perform operations based on execution by the at least one processor, The above-mentioned instruction of at least one computer memory is, Create a trigger frame, but The above trigger frame includes a common info field, a special user info field, and an ultra-high reliability (UHR) variant user info field, wherein The above common information field includes a 4-bit subfield, and the 4-bit subfield includes information regarding whether a DRU (distributed-tone resource unit) or a RRU (regular resource unit) is solicited by the trigger frame. The above special user information field includes a 3-bit PHY version ID (identifier) subfield, and the PHY version ID subfield includes information regarding whether the TB PPDU (solicited trigger-based physical protocol data identity) requested by the trigger frame is related to UHR, and Step, wherein the above UHR variant user information field includes a 1-bit subfield, and the 1-bit subfield includes information related to whether UEQM (unequal modulation) is applied to the TB PPDU; and Step of transmitting the above trigger frame including STA(station) that performs an operation.
  7. In paragraph 6 The above-mentioned instruction of at least one computer memory performs an operation related to any one of claims 1 to 5. STA.
  8. Receive a trigger frame via STA, The above trigger frame includes a common info field, a special user info field, and an ultra-high reliability (UHR) variant user info field, wherein The above common information field includes a 4-bit subfield, and the 4-bit subfield includes information regarding whether a DRU (distributed-tone resource unit) or a RRU (regular resource unit) is solicited by the trigger frame. The above special user information field includes a 3-bit PHY version ID (identifier) subfield, and the PHY version ID subfield includes information regarding whether the TB PPDU (solicited trigger-based physical protocol data identity) requested by the trigger frame is related to UHR, and Step, wherein the above UHR variant user information field includes a 1-bit subfield, and the 1-bit subfield includes information related to whether UEQM (unequal modulation) is applied to the TB PPDU; and The step of transmitting the TB PPDU based on the trigger frame by the above STA A method including
  9. In paragraph 8 The above STA performs an operation related to any one of claims 1 to 5. method.
  10. At least one processor; and It includes at least one computer memory that is operablely connectable to the at least one processor and stores instructions that perform operations based on execution by the at least one processor, The above-mentioned instruction of at least one computer memory is, Receive a trigger frame via STA, The above trigger frame includes a common info field, a special user info field, and an ultra-high reliability (UHR) variant user info field, wherein The above common information field includes a 4-bit subfield, and the 4-bit subfield includes information regarding whether a DRU (distributed-tone resource unit) or a RRU (regular resource unit) is solicited by the trigger frame. The above special user information field includes a 3-bit PHY version ID (identifier) subfield, and the PHY version ID subfield includes information regarding whether the TB PPDU (solicited trigger-based physical protocol data identity) requested by the trigger frame is related to UHR, and Step, wherein the above UHR variant user information field includes a 1-bit subfield, and the 1-bit subfield includes information related to whether UEQM (unequal modulation) is applied to the TB PPDU; and The step of transmitting the TB PPDU based on the trigger frame by the above STA including STA(station) that performs an operation.
  11. In paragraph 10 The above-mentioned instruction of at least one computer memory performs an operation related to any one of claims 1 to 5. STA.
  12. In a wireless local area network (WLAN) system, at least one computer-readable medium comprising an instruction based on execution by at least one processor, Create a trigger frame, but The above trigger frame includes a common info field, a special user info field, and an ultra-high reliability (UHR) variant user info field, wherein The above common information field includes a 4-bit subfield, and the 4-bit subfield includes information regarding whether a DRU (distributed-tone resource unit) or a RRU (regular resource unit) is solicited by the trigger frame. The above special user information field includes a 3-bit PHY version ID (identifier) subfield, and the PHY version ID subfield includes information regarding whether the TB PPDU (solicited trigger-based physical protocol data identity) requested by the trigger frame is related to UHR, and Step, wherein the above UHR variant user information field includes a 1-bit subfield, and the 1-bit subfield includes information related to whether UEQM (unequal modulation) is applied to the TB PPDU; and Step of transmitting the above trigger frame Performing an operation that includes Recording media.

Description

Configuration of the trigger frame This specification relates to a wireless LAN system, and more specifically, to a frame structure related to a trigger frame of a wireless LAN system. Wireless local area networks (WLANs) have been improved in various ways. For example, the Extreme High Throughput (EHT) standard can utilize newly proposed increased bandwidth, an improved PPDU (PHY layer protocol data unit) structure, improved sequencing, and the Hybrid Automatic Repeat Request (HARQ) technique. The EHT standard can be referred to as the IEEE 802.11be standard. To support high throughput and high data rates, the EHT standard may use wide bandwidth (e.g., 160/320 MHz), 16 streams, and/or multi-link (or multi-band) operation. In the EHT standard, wide bandwidth (e.g., 160/240/320 MHz) can be used for high throughput. In addition, preamble puncturing and multiple RU transmission can be used to efficiently utilize bandwidth. WLAN systems can be further improved through the Ultra High Reliability (UHR) standard. The UHR system may be referred to as the IEEE 802.11bn standard. The UHR system aims to support ultra-high reliability during signal transmission to STAs. To achieve this, various technologies are being considered for high throughput, low latency, and extended range support. Conventional wireless LAN systems provide trigger frame-based UL-MU communication. A trigger frame includes various fields such as a common info field and a user info field. The common info field contains information common to all STAs receiving the trigger frame, and the user info field may contain user-specific information common to individual STAs among the STAs receiving the trigger frame. FIG. 1 shows an example of a transmitting device and/or receiving device of the present specification. Figure 2 is a conceptual diagram showing the structure of a wireless LAN (WLAN). Figure 3 is a diagram illustrating a general link setup process. FIG. 4 illustrates an example of a multi-link (ML). FIG. 5 illustrates a PPDU transmitted/received in an STA of the present specification. Figure 6 is a diagram showing the arrangement of resource units (RU) used for a 20 MHz PPDU. Figure 7 is a diagram showing the arrangement of resource units (RU) used for a 40 MHz PPDU. Figure 8 is a diagram showing the arrangement of resource units (RU) used for an 80 MHz PPDU. Figure 9 shows the operation according to UL-MU. Figure 10 shows an example of a channel used/supported/defined within the 2.4 GHz band. FIG. 11 illustrates an example of a channel used/supported/defined within the 5 GHz band. FIG. 12 illustrates an example of a channel used/supported/defined within the 6 GHz band. Figure 13 shows an example of a MAC frame header. FIG. 14 shows a modified example of a transmitting device and/or receiving device of the present specification. FIGS. 15 and 16 show examples of user info fields related when EQM and RRU are applied. FIGS. 17 to 21 show examples of user info fields related when EQM and DRU are applied. FIGS. 22 to 25 show examples of user info fields related when UEQM and RRU are applied. FIGS. 26 to 30 show examples of user info fields related when UEQM and DRU are applied. FIGS. 31 and 32 illustrate an example of an Extended user info field related to the present specification. FIG. 33 is an example of a procedure flowchart related to the present specification. FIG. 34 is another example of a procedure flowchart related to the present specification. In this specification, “A or B” may mean “only A,” “only B,” or “both A and B.” Alternatively, in this specification, “A or B” may be interpreted as “A and/or B.” For example, in this specification, “A, B or C” may mean “only A,” “only B,” “only C,” or “any combination of A, B and C.” As used herein, a slash (/) or a comma may mean “and/or.” For example, “A/B” may mean “A and/or B.” Accordingly, “A/B” may mean “only A,” “only B,” or “both A and B.” For example, “A, B, C” may mean “A, B or C.” In this specification, “at least one of A and B” may mean “only A,” “only B,” or “both A and B.” Additionally, in this specification, the expressions “at least one of A or B” or “at least one of A and/or B” may be interpreted as synonymous with “at least one of A and B.” Additionally, parentheses used in this specification may mean “for example.” Specifically, when indicated as “control information (UHR-Signal field),” the “UHR-Signal field” may be proposed as an example of “control information.” In other words, the “control information” of this specification is not limited to the “UHR-Signal field,” and the “UHR-Signal field” may be proposed as an example of “control information.” Furthermore, even when indicated as “control information (UHR-Signal field),” the “UHR-Signal field” may be proposed as an example of “control information.” Additionally, as used herein, “a/an” may mean “at least one” or “one or more.” Also, terms ending in “(s)” may mean “at least one” or “one or more.” Additionally, the expressions