# US 2025/0159604 A1 · Method and device for selectively transmitting subchannel based on target wake time in wireless lan system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0159604 A1 - Document ID: US20250159604A1 - Status: Published application - Kind: A1 - Application number: 18/838,173 - Filed: 2023-02-14 - Published: 2025-05-15 - Earliest claimed: 2022-02-14 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Jinyoung CHUN; Jinsoo CHOI; Dongguk LIM; Eunsung PARK; Insik JUNG - Web page: https://patentgrep.com/patent/US20250159604A1 ## CPC - H04W 52/0216: {using a pre-established activity schedule, e.g. traffic indication frame} - H04L 1/0068: {by puncturing} - H04L 5/00: Arrangements affording multiple use of the transmission path - H04L 5/003: {Arrangements for allocating sub-channels of the transmission path} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04L 27/2602: {Signal structure} - H04W 52/02: Power saving arrangements - H04W 52/0229: {where the received signal is a wanted signal} - H04W 84/12: WLAN [Wireless Local Area Networks] - Y02D 30/70: in wireless communication networks - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## Abstract A method and a device for performing an SST operation in a wireless LAN system are disclosed. A method by which a first station (STA) performs an SST operation in a wireless LAN system comprises the steps of: receiving, from a second STA, a target wake time (TWT) element including a control field and an individual TWT parameter set field; and performing the SST operation on the basis of the TWT element, wherein the control field includes a first field for indicating a format of the individual TWT parameter set field supporting a bandwidth of 320 MHZ or more, and the TWT element can include a second field related to a channel width resolution for the SST operation. ## Claims ### Claim 1 A method of performing subchannel selective transmission (SST) operation by a first station (STA) in a wireless LAN system, the method comprising: receiving, from a second STA, a target wake time (TWT) element including a control field and an individual TWT parameter set field; and performing the SST operation based on the TWT element, wherein the control field includes a first field indicating a format of the individual TWT parameter set field supporting a bandwidth of 320 MHz or more, and wherein the TWT element includes a second field related to a channel width resolution for the SST operation. ### Claim 2 (depends on 1) The method of claim 1, wherein: the first field is set to at least one of a seventh bit (B6) or a eighth bit (B7) of the control field. ### Claim 3 (depends on 1) The method of claim 1, wherein: the second field is set to at least one of a seventh bit (B6) or an eight bit (B7) of the control field, or is included in the individual TWT parameter set field. ### Claim 4 (depends on 1) The method of claim 1, wherein: the channel width resolution is indicated by the second field as at least one of 20 MHz, 40 MHz, 80 MHz, or 160 MHz. ### Claim 5 (depends on 1) The method of claim 1, wherein: the individual TWT channel parameter set field includes a TWT channel field, and the TWT channel field includes a 16-bit or 32-bit bitmap indicating a channel for the SST operation. ### Claim 6 (depends on 5) The method of claim 5, wherein: based on a specific channel being punctured in an overall bandwidth, the TWT channel field includes a bitmap indicating a channel for the SST operation in a bandwidth excluding the specific channel from the overall bandwidth. ### Claim 7 (depends on 5) The method of claim 5, wherein: based on a first bandwidth being indicated by a size of the channel width resolution by the second field and a second bandwidth being punctured within the first bandwidth, the SST operation is performed in a remaining bandwidth excluding the second bandwidth among the first bandwidth. ### Claim 8 (depends on 5) The method of claim 5, wherein: based on a size of the channel width resolution being indicated by the second field as a first bandwidth and a second bandwidth being punctured within the first bandwidth, the SST operation is not performed in the first bandwidth. ### Claim 9 (depends on 5) The method of claim 5, wherein: a specific channel being punctured from an overall bandwidth is indicated by a disabled subchannel bitmap or a bitmap related to a disabling of a subchannel. ### Claim 10 A first station (STA) performing a subchannel selective transmission (SST) operation in a wireless LAN system, the first STA comprising: at least one transceiver; and at least one processor connected to the at least one transceiver, wherein the at least one processor is configured to: receive, from a second STA through the at least one transceiver, a target wake time (TWT) element including a control field and an individual TWT parameter set field; and perform the SST operation based on the TWT element, wherein the control field includes a first field indicating a format of the individual TWT parameter set field supporting a bandwidth of 320 MHz or more, and wherein the TWT element includes a second field related to a channel width resolution for the SST operation. ### Claim 11 (canceled) ### Claim 12 A second station (STA) performing subchannel selective transmission (SST) operation in a wireless LAN system, the second STA comprising: at least one transceiver; and at least one processor connected to the at least one transceiver, wherein the at least one processor is configured to: transmit, to a first STA through the at least one transceiver, a target wake time (TWT) element including a control field and an individual TWT parameter set field; and perform the SST operation based on the TWT element, wherein the control field includes a first field indicating a format of the individual TWT parameter set field supporting a bandwidth of 320 MHz or more, and wherein the TWT element includes a second field related to a channel width resolution for the SST operation. ### Claim at position 13 13-14. (canceled)