METHOD FOR ACCESS TO CHANNEL IN SYSTEM BASED ON WIRELESS LAN AND DEVICE FOR THIS Russian patent published in 2017 - IPC H04W74/08 H04W84/12 

FIELD: radio engineering, communication.

SUBSTANCE: method comprises the steps of: receiving a frame containing a SIGNAL-A field (SIG-A); and determining whether or not the wireless medium is idle using the time interval indicated by the extended interframe interval (EIFS), before performing transmission in the wireless environment. If the frame has a cyclic redundancy code (CRC) failure when receiving the SIG-A field, the EIFS is set equal to the sum of aSIFSTime, the interframe interval of the distributed coordination function (DIFS) and ACKTxTime, where aSIFSTime is the nominal value of the short interframe interval (SIFS), and the ACKTxTime is the time required to transmit the ACK frame, and if the frame does not have a CRC failure when receiving the SIG-A field, the EIFS is reduced to DIFS.

EFFECT: to provide regulation and management of the extended inter-frame interval in a system based on a wireless LAN to support the protection of response frames and access to the channel.

11 cl, 15 dwg, 8 tbl