US Patent No. 10,477,589

WIRELESS COMMUNICATION TERMINAL FOR MULTI-USER UPLINK TRANSMISSION, AND WIRELESS COMMUNICATION METHOD


Patent No. 10,477,589
Issue Date November 12, 2019
Title Wireless Communication Terminal For Multi-user Uplink Transmission, And Wireless Communication Method
Inventorship Woojin Ahn, Seoul (KR)
Yongho Kim, Incheon (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. 10,477,589

1. A wireless communication terminal, the terminal comprising:a transceiver; and
a processor,
wherein the processor is configured to:
receive, through the transceiver, a trigger frame transmitted by a base wireless communication terminal, and
perform a multi-user uplink transmission based on the received trigger frame, wherein the trigger frame includes a predetermined field indicating whether an additional trigger frame is present; and
wherein when the trigger frame triggers a random access based multi-user uplink transmission and the terminal participates in the random access based multi-user uplink transmission in response to the trigger frame, the processor is further configured to:
decrement a backoff counter for the random access based multi-user uplink transmission by a maximum of N in response to the trigger frame, wherein the N is the number of resource unit(s) allocated for the random access based multi-user uplink transmission and the resource unit(s) are allocated by the trigger frame, and
perform the random access based multi-user uplink transmission when the backoff counter is decremented to 0.