KT Corporation
METHOD AND DEVICE FOR PROCESSING CHANNEL ACCESS FAILURE IN UNLICENSED BAND

Abstract:

Provided are methods and apparatus for performing communication in an unlicensed band. The method includes: detecting a channel occupation failure of an unlicensed band wireless resource for transmitting and receiving uplink data or downlink data; determining that channel access fails in the unlicensed band wireless resource if the channel occupation failure satisfies certain criteria; and transmitting upper layer signaling to a base station if channel access fails.