Hyundai Motor Company

Kia Corporation

Korea National University of Transportation Industry-Academic Cooperation Foundation

Yong Su Gwak

Yong Ho Kim

A method and apparatus for transmitting and receiving a block acknowledgement (ACK) in a wireless local area network (LAN) system are disclosed. An operation method for a first communication node comprises the steps of: generating a first data frame including first add block acknowledgment (ADDBA) information; transmitting the first data frame to a second communication node; and receiving, from the second communication node, a first receiver address (RA) including second ADDBA information generated by the second communication node in response to the first data frame.

Method and apparatus for transmitting and receiving block ack in wireless LAN system

An operating method of a communication node in a wireless communication network includes: performing a first monitoring operation on a first link and a second link during a preset period; performing a first random backoff operation in the first link for a first random backoff period, if the first link and the second link are in an idle state according to the first monitoring operation; performing, in the second link, a second random backoff operation for a second random backoff period which is different from the first random backoff period in length; and transmitting a frame at a same point in time in the first link and the second link, if the first link is in the idle state according to the first random backoff operation, and if the state of the second link is an idle state according to execution of the second random backoff operation.

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Seoul, South Korea

Yong Su Gwak