method, computer program, computer readable storage media, and first and second communication devices.

摘要

A method performed by a first communication device (101) operating on a wireless communication network (100) is described. first communication device (101) determines (1101) one or more parameters for transmission on an uplink control channel in an unlicensed band to a second communication device (102). The second communication device (102) operates on the wireless communication network (100). one or more parameters comprise an indication of a duration of a channel perception period. the first communication device (101) then transmits (1102) on the uplink control channel to the second communication device (102) by applying one or more determined parameters. According to a method performed by the second communication device (102) operating in the wireless communication network (100), the second communication device (102) determines (1301) the one or more parameters. the second communication device (102) then initiates transmission (1302) of one or more parameters determined to the first communication device (101).