US Patent No. 10,602,512

METHOD FOR TRANSMITTING AND RECEIVING FRAME IN WIRELESS LOCAL AREA NETWORK SYSTEM AND APPARATUS FOR THE SAME


Patent No. 10,602,512
Issue Date March 24, 2020
Title Method For Transmitting And Receiving Frame In Wireless Local Area Network System And Apparatus For The Same
Inventorship Gwang Zeen Ko, Daejeon (KR)
Hyun Duk Kang, Gwangju (KR)
Igor Kim, Daejeon (KR)
Myung Sun Song, Daejeon (KR)
Jin Hyung Oh, Daejeon (KR)
Assignee

Claim of US Patent No. 10,602,512

1. A method for maintaining a plurality of network allocation vectors (NAVs) in a wireless local area network, the method comprising:receiving, by a first station (STA) from a second STA, a first frame including a receiver address (RA) field indicating a first type STA, wherein the first type STA is an interference station included in a same basic service set (BSS) of the first STA;
setting, by the first STA, a first type NAV based on a duration information included in the first frame;
receiving, by the first STA from a third STA, a second frame including an RA field indicating a second type STA, wherein the second type STA is a non-interference station included in a different BSS of the first STA; and
setting, by the first STA, a second type NAV based on a duration information included in the second frame,
wherein a data frame is transmitted by the first STA based on the first type NAV or the second type NAV,
wherein the method further comprises;
determining whether the first type STA or second type STA indicated by the RA of the first frame or the second frame is the interference station or the non-interference station based on interference/non-interference (I/NI) station lists generated in advance, wherein the interference station list of the I/NI station lists includes at least one station that transmits a response to the first frame within a preset time, and the non-interference station list of the I/NI station lists includes at least one station that transmits the response to the first frame outside the preset time.