US 12,149,354 B2
Wireless communication method and wireless communication terminal for coexistence with legacy wireless communication terminal
Geonjung Ko, Gyeonggi-do (KR); Jinsam Kwak, Gyeonggi-do (KR); and Juhyung Son, Gyeonggi-do (KR)
Assigned to WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., Gyeonggi-Do (KR)
Filed by WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., Gyeonggi-do (KR)
Filed on Jun. 6, 2023, as Appl. No. 18/206,081.
Application 18/206,081 is a continuation of application No. 17/408,296, filed on Aug. 20, 2021, granted, now 11,700,084.
Application 17/408,296 is a continuation of application No. 16/835,305, filed on Mar. 31, 2020, granted, now 11,128,421, issued on Sep. 21, 2021.
Application 16/835,305 is a continuation of application No. 16/396,635, filed on Apr. 27, 2019, granted, now 10,651,992, issued on May 12, 2020.
Application 16/396,635 is a continuation of application No. 15/854,662, filed on Dec. 26, 2017, granted, now 10,313,077, issued on Jun. 4, 2019.
Application 15/854,662 is a continuation of application No. PCT/KR2016/006976, filed on Jun. 29, 2016.
Claims priority of application No. 10-2015-0092525 (KR), filed on Jun. 29, 2015; and application No. 10-2015-0117434 (KR), filed on Aug. 20, 2015.
Prior Publication US 2023/0318744 A1, Oct. 5, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 1/00 (2006.01); H04L 1/08 (2006.01); H04L 5/00 (2006.01); H04L 27/18 (2006.01); H04L 27/26 (2006.01); H04L 69/18 (2022.01); H04L 69/323 (2022.01); H04W 80/04 (2009.01); H04W 84/12 (2009.01)
CPC H04L 1/0079 (2013.01) [H04L 5/0046 (2013.01); H04L 5/0048 (2013.01); H04L 5/0053 (2013.01); H04L 5/0092 (2013.01); H04L 27/18 (2013.01); H04L 27/2602 (2013.01); H04L 27/2603 (2021.01); H04L 27/2613 (2013.01); H04L 69/18 (2013.01); H04L 69/323 (2013.01); H04L 1/08 (2013.01); H04L 27/26025 (2021.01); H04L 27/26132 (2021.01); H04L 27/26136 (2021.01); H04W 80/045 (2013.01); H04W 84/12 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A wireless communication terminal that communicates wirelessly, the wireless communication terminal comprising:
a transceiver; and
a processor,
wherein the processor is configured to:
receive a non-legacy physical layer frame by using the transceiver,
obtain a legacy signaling field including information decodable by a legacy wireless communication terminal from the non-legacy physical layer frame,
obtain length information indicating information on a duration of the non-legacy physical layer frame, from the legacy signaling field,
determine a format of the non-legacy physical layer frame based on a modulation method of a third symbol after the legacy signaling field and a remaining value obtained by dividing the length information by a data size transmittable by one symbol of a legacy physical layer frame, wherein the modulation method is Binary Phase Shift Keying (BPSK) or Quadrature Binary Phase Shift Keying (QBPSK), and
determine a number of symbols of data of the non-legacy physical layer frame according to a following equation when the remaining value is non-zero,

OG Complex Work Unit Math
where └x┘ denotes a largest integer less than or equal to x,
L_LENGTH denotes the length information,
m denotes a value equal to a value obtained by subtracting the remaining value from the data size transmittable by one symbol of the legacy physical layer frame,
Dsize denotes the data size transmittable by one symbol of the legacy physical layer frame,
bPE_Disambiguity denotes a value of PE (packet extension) Disambiguity field,
THE_PREAMBLE denotes a duration of a non-legacy preamble of the non-legacy physical layer frame,
TSYM denotes a duration of one symbol of the data of the non-legacy physical layer frame,
wherein the PE Disambiguity field is set based on the duration of one symbol of the data of the non-legacy physical layer frame and an increment of duration to set a value of the length information based on a duration of one symbol of the legacy physical layer frame.