CPC H04W 74/0816 (2013.01) [H04B 7/0452 (2013.01); H04W 74/002 (2013.01); H04W 84/12 (2013.01); H04W 74/085 (2013.01)] | 12 Claims |
1. A wireless communication terminal, the terminal comprising:
a communication unit; and
a processor configured to control transmission and reception of a wireless signal through the communication unit,
wherein the processor is configured to:
receive a first frame including at least one of an enhanced distributed channel access (EDCA) parameter set and a multi-user (MU) EDCA parameter set,
wherein the MU EDCA parameter set includes a first update count subfield indicating whether MU EDCA parameters of the MU EDCA parameter set are changed,
transmit a frame including operation mode indication (OMI) information,
update EDCA parameters for channel access according to a parameter set selected among the EDCA parameter set or the MU EDCA parameter set based on a value of the first update count subfield, and
perform the channel access based on the updated EDCA parameters for the channel access,
wherein the EDCA parameters are updated based on the EDCA parameter set or the MU EDCA parameter set after an immediate response to the OMI information is received when the OMI information indicates that the terminal does not participate in an uplink multi-user (MU) operation.
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