Einzeltreffer — DigiBib

The present disclosure is related to a Long Training Field (LTF) signal used in a wireless local area network (WLAN) system. The LTF signal may be generated by a transmitting station (STA) and received by a receiving STA. The LTF signal may be included in a physical protocol data unit (PPDU), and the PPDU may be transmitted an 80 MHz band. The LTF sequence may include at least two parts, i.e., a first LTF sequence and a second LTF sequence.

Titel:	4X LTF sequence for 80MHz band
Autor/in / Beteiligte Person:	LG ELECTRONICS INC.
Link:	View record in USPTO Patent Grants (Volltext)
Veröffentlichung:	2024
Medientyp:	Patent
Sonstiges:	Nachgewiesen in: USPTO Patent Grants Sprachen: English Patent Number: 11962,447 Publication Date: April 16, 2024 Appl. No: 17/925203 Application Filed: February 10, 2021 Assignees: LG ELECTRONICS INC. (Seoul, KR) Claim: 1. A method performed in a wireless local area network (WLAN) system, the method performed by a transmitting station (STA) and comprising: generating a physical protocol data unit (PPDU); and transmitting the PPDU through an 80 MHz band, wherein the PPDU includes a Long Training Field (LTF) signal, wherein the LTF signal is generated based on the LTF sequence for the 80 MHz band, wherein the LTF sequence is defined as follows: [table included] Claim: 2. The method of claim 1 , wherein the PPDU further includes a universal-signal (U-SIG) field. Claim: 3. The method of claim 1 , wherein the PPDU further includes a legacy-signal (L-SIG) field and a L-SIG (RL-SIG) field that is a repetition of the L-SIG field. Claim: 4. The method of claim 1 , wherein the LTF sequence is mapped from the lowest tone having a tone index −500 to the highest tone having a tone index 500. Claim: 5. The method of claim 1 , wherein the LTF sequence is a 4×LTF sequence. Claim: 6. A transmitting station (STA) used in a wireless local area network (WLAN) system, the transmitting STA comprising: a transceiver for transmitting and receiving a radio signal; and a processor coupled to the transceiver, the processor is adapted to: generate a physical protocol data unit (PPDU); and transmit the PPDU through an 80 MHz band, wherein the PPDU includes a Long Training Field (LTF) signal, wherein the LTF signal is generated based on the LTF sequence for the 80 MHz band, wherein the LTF sequence is defined as follows: [table included] Claim: 7. The transmitting STA of claim 6 , wherein the PPDU further includes a universal-signal (U-SIG) field. Claim: 8. The transmitting STA of claim 6 , wherein the PPDU further includes a legacy-signal (L-SIG) field and a L-SIG (RL-SIG) field that is a repetition of the L-SIG field. Claim: 9. The transmitting STA of claim 6 , wherein the LTF sequence is mapped from the lowest tone having a tone index −500 to the highest tone having a tone index 500. Claim: 10. The transmitting STA of claim 6 , wherein the LTF sequence is a 4× LTF sequence. Claim: 11. A receiving station (STA) used in a wireless local area network (WLAN) system, the receiving STA comprising: a transceiver for transmitting and receiving a radio signal; and a processor coupled to the transceiver, the processor is adapted to: receive a physical protocol data unit (PPDU) through an 80 MHz band; and decode the PPDU, wherein the PPDU includes a Long Training Field (LTF) signal, wherein the LTF signal is generated based on the LTF sequence for the 80 MHz band, wherein the LTF sequence is defined as follows: [table included] Patent References Cited: 20160127096 May 2016 Lee ; 20190268805 August 2019 Lee et al. ; 20220123911 April 2022 Chen ; 20220417920 December 2022 Li ; 20230198819 June 2023 Chun ; 110324268 October 2019 ; 20180034647 April 2018 ; 2020022707 January 2020 Other References: PCT International Application No. PCT/KR2021/001795, International Search Report dated May 24, 2021, 4 pages. cited by applicant ; Dongguk Lim, et al., “1x LTF sequence for 11bd”, doc.: IEEE 802.11-19/1849r3, Nov. 2019, 22 pages. cited by applicant Primary Examiner: Joseph, Jaison Attorney, Agent or Firm: LEE, HONG, DEGERMAN, KANG & WAIMEY

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4X LTF sequence for 80MHz band