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US 2026/0074873 A1Published application
Technique for configuring preamble in wireless communication system
AssigneeLG Electronics Inc.
InventorsDongguk LIM, Jinyoung CHUN, Jinsoo CHOI, Eunsung PARK
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Abstract
According to various embodiments, a reception STA may receive a PPDU. The PPDU may comprise a first signal field and a second signal field. The first signal field may comprise a plurality of first content channels and a plurality of second content channels. The second signal field may comprise a third content channel and a fourth content channel.
Claims10
A method, comprising:
- participating, by a station (STA), in a 160 MHz downlink (DL) transmission related to an Extremely High Throughput (EHT) physical layer protocol data unit (PPDU),
- wherein the EHT PPDU includes a legacy signal (L-SIG) and a repeated L-SIG (RL-SIG) following the L-SIG, and the RL-SIG is a repeat of the L-SIG,
- wherein the L-SIG includes a length field which has a value satisfying a condition that a remainder is zero (0) when the length field is divided by three (3), wherein the remainder is used to differentiate the EHT PPDU from a High Efficiency (HE) PPDU,
- wherein each of the L-SIG and the RL-SIG is duplicated over each 20 MHz sub-channel,
- wherein four extra subcarriers are inserted at indexes of {−28, −27, 27, 28} in the RL-SIG, and values on the four extra subcarriers are {−1, −1, −1, 1}, respectively,
- wherein the EHT PPDU further includes a first universal-signal (U-SIG) in a first 80 MHz sub-block and a second U-SIG in a second 80 MHz sub-block,
- wherein 52 data subcarriers and 4 pilot subcarriers are configured for the first U-SIG,
- wherein 52 data subcarriers and 4 pilot subcarriers are configured for the second U-SIG,
- wherein each of the first U-SIG and the second U-SIG includes version independent fields followed by version dependent fields, the version independent fields include a first field having a length of 3 bits, and a value of the first field is used to identify a physical version starting with EHT,
- wherein the version independent fields further include a second field having a length of 1 bit related to the EHT PPDU being sent in downlink (DL), a third field related to an identifier of a basic service set (BSS), and a fourth field related to a duration related to transmission opportunity (TXOP),
- wherein the first U-SIG is duplicated over each 20 MHz sub-channel of the first 80 MHz sub-block, and the second U-SIG is duplicated over each 20 MHz sub-channel of the second 80 MHz sub-block;
- and
- receiving, by the STA, data allocated within an 80 MHz channel in the EHT PPDU.
10 more elements
A station (STA) in a wireless local area network (LAN), the STA comprising:
- at least one processor;
- and
- at least one computer memory operatively connected to the at least one processor and storing instructions that, based on being executed by the at least one processor, perform operations comprising:
- participating in a 160 MHz downlink (DL) transmission related to an Extremely High Throughput (EHT) physical layer protocol data unit (PPDU),
- wherein the EHT PPDU includes a legacy signal (L-SIG) and a repeated L-SIG (RL-SIG) following the L-SIG, and the RL-SIG is a repeat of the L-SIG,
- wherein the L-SIG includes a length field which has a value satisfying a condition that a remainder is zero (0) when the length field is divided by three (3), wherein the remainder is used to differentiate the EHT PPDU from a High Efficiency (HE) PPDU,
- wherein each of the L-SIG and the RL-SIG is duplicated over each 20 MHz sub-channel,
- wherein four extra subcarriers are inserted at indexes of {−28, −27, 27, 28} in the RL-SIG, and values on the four extra subcarriers are {−1, −1, −1, 1}, respectively,
- wherein the EHT PPDU further includes a first universal-signal (U-SIG) in a first 80 MHz sub-block and a second U-SIG in a second 80 MHz sub-block,
- wherein 52 data subcarriers and 4 pilot subcarriers are configured for the first U-SIG,
- wherein 52 data subcarriers and 4 pilot subcarriers are configured for the second U-SIG,
- wherein each of the first U-SIG and the second U-SIG includes version independent fields followed by version dependent fields, the version independent fields include a first field having a length of 3 bits, and a value of the first field is used to identify a physical version starting with EHT,
- wherein the version independent fields further include a second field having a length of 1 bit related to the EHT PPDU being sent in downlink (DL), a third field related to an identifier of a basic service set (BSS), and a fourth field related to a duration related to transmission opportunity (TXOP),
- wherein the first U-SIG is duplicated over each 20 MHz sub-channel of the first 80 MHz sub-block, and the second U-SIG is duplicated over each 20 MHz sub-channel of the second 80 MHz sub-block;
- and
- receiving data allocated within an 80 MHz channel in the EHT PPDU.
13 more elements
Dependencies are inferred from the claim text.