US Patent No. 10,313,077

WIRELESS COMMUNICATION METHOD AND WIRELESS COMMUNICATION TERMINAL FOR COEXISTENCE WITH LEGACY WIRELESS COMMUNICATION TERMINAL


Patent No. 10,313,077
Issue Date June 04, 2019
Title Wireless Communication Method And Wireless Communication Terminal For Coexistence With Legacy Wireless Communication Terminal
Inventorship Geonjung Ko, Gyeonggi-do (KR)
Jinsam Kwak, Gyeonggi-do (KR)
Juhyung Son, Gyeonggi-do (KR)
Assignee WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., Gyeonggi-Do (KR) SK TELE...

Claim of US Patent No. 10,313,077

8. An operation method of a wireless communication terminal that communicates wirelessly, the method comprising:receiving a non-legacy physical layer frame by using the transceiver,
obtaining a legacy signaling field including information decodable by a legacy wireless communication terminal from the non-legacy physical layer frame,
obtaining length information indicating information on a duration of the non-legacy physical layer frame after a legacy signaling field, from the legacy signaling field,
obtaining information other than the information on the duration of the non-legacy physical layer frame through a remaining value obtained by dividing the length information by a data size transmittable by a symbol of a legacy physical layer frame, wherein the data size transmittable by a symbol of the legacy physical layer frame is 3 octets when a data rate of the legacy physical layer frame is 6 Mbps, and
determining the number of symbols of the data of the non-legacy physical layer frame according to a following equation,

where [x] denotes a largest integer less than or equal to x,
L_LENGTH denotes the length information,
m denotes a value obtained by subtracting the remaining value from the data size transmittable by a symbol of the legacy physical layer frame,
bPE_Disambiguity denotes a value of PE Disambiguity field,
THE_PREAMBLE denotes a duration of non-legacy preamble of the non-legacy physical layer frame,
TSYM denotes a duration of a symbol of the data of the non-legacy physical layer frame,
wherein the PE Disambiguity field is set based on the duration of a 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 a symbol of legacy physical layer frame.