Method and apparatus for channel usage in unlicensed spectrum considering beamformed transmission in a wireless communication system
摘要
說明書
Alternative 2—The control signal could explicitly or implicitly indicate a time duration which comprises a consecutive of scheduling time units or TTIs, wherein the content of the control signal applies to these scheduling time units or TTIs. The UE could assume the last scheduling time unit or TTI in the time duration is the ending scheduling time unit or TTI. Additionally, the UE could assume or consider the last symbol indicated as “DL” or “UL” of the last scheduling time units or TTI in the time duration is the ending symbol of current channel occupancy. The last symbol may be indicated as “DL” or “UL.” The last symbol may not be indicated as “No DL and No UL”.
In one embodiment, the control signal can indicate the time duration by indicating starting scheduling time unit or TTI of the time duration and length of the time duration by unit of scheduling time unit or TTI. The control signal can also indicate the time duration by indicating the earliest scheduling time unit or TTI and the last scheduling time unit or TTI of the time duration.
In one embodiment, the earliest scheduling time unit or TTI can be indicated through the timing offset relative to the transmission/reception of the control signal. Alternatively, the earliest scheduling time unit or TTI could be the scheduling time unit or TTI of transmitting or receiving the control signal, or could be indicated by index of the scheduling time unit or TTI. Alternatively, the earliest scheduling time unit or TTI could be the first scheduling time unit or TTI of the current channel occupancy or the first scheduling time unit or TTI of the consecutive DL or UL scheduling time unit or TTI.
