Method and apparatus for channel usage in unlicensed spectrum considering beamformed transmission in a wireless communication system
摘要
說明書
In one embodiment, the UE may monitor the control signal in licensed cell or on licensed channel. If the control signal is for a licensed cell or a licensed channel or licensed spectrum, the control signal comprises slot format related information and does not indicate ending scheduling time unit or TTI (of current channel occupancy). Alternatively or additionally, if the control signal is for an unlicensed cell or an unlicensed channel or unlicensed spectrum, the control signal comprises slot format related information and also indicates ending scheduling time unit or TTI (of current channel occupancy).
In one embodiment, the information derived from the content of the control signal could at least indicate the structure of the ending scheduling time unit or TTI. The information derived from the content of the control signal could also at least explicitly or implicitly indicate the transmission direction of symbol within the ending scheduling time unit or TTI. The transmission direction may comprise at least any of “DL”, “UL”, and “No DL and No UL”. “DL” means DL transmission applied in the indicated symbol(s). “UL” means UL transmission applied in the indicated symbol(s). “No DL and No UL” mean no downlink transmission and no uplink transmission applied in the indicated symbol(s). Alternatively or additionally, “No DL and No UL” may mean the control signal indicates neither “DL” nor “UL” for symbol within the ending scheduling time unit or TTI. Alternatively or additionally, “No DL and No UL” may mean “empty” or “reserved”.
