Controlling power in non-licensed band
First Claim
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1. A method for a wireless communication system, the method performed by a user equipment (UE) comprising:
- receiving scheduling information corresponding to a physical uplink shared channel (PUSCH) transmission on a Licensed-Assisted Access (LAA) secondary cell in a scheduled subframe; and
computing a power headroom for the scheduled subframe assuming that the UE performs the PUSCH transmission on the LAA secondary cell in the scheduled subframe irrespective of whether the UE can access the LAA secondary cell for the PUSCH transmission in the scheduled subframe according to a channel access procedure.
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Abstract
Provided are a method and an apparatus for controlling transmission power in a wireless communication system. A wireless device is connected to a first serving cell utilizing a licensed band and a second serving cell utilizing a non-licensed band. The transmission power from the second serving cell is determined by considering the clear channel assessment (CCA) coverage of the wireless device or the second serving cell.
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Citations
10 Claims
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1. A method for a wireless communication system, the method performed by a user equipment (UE) comprising:
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receiving scheduling information corresponding to a physical uplink shared channel (PUSCH) transmission on a Licensed-Assisted Access (LAA) secondary cell in a scheduled subframe; and computing a power headroom for the scheduled subframe assuming that the UE performs the PUSCH transmission on the LAA secondary cell in the scheduled subframe irrespective of whether the UE can access the LAA secondary cell for the PUSCH transmission in the scheduled subframe according to a channel access procedure. - View Dependent Claims (2, 3, 4, 5)
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6. A device for a wireless communication system, the device comprising:
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a radio frequency (RF) unit configured to receive and transmit radio signals; and a processor operatively coupled with the RF unit and configured to; control the RF unit to receive scheduling information corresponding to a physical uplink shared channel (PUSCH) transmission on a Licensed-Assisted Access (LAA) secondary cell in a scheduled subframe; and compute a power headroom for the scheduled subframe assuming that the device performs the PUSCH transmission on the LAA secondary cell in the scheduled subframe irrespective of whether the device can access the LAA secondary cell for the PUSCH transmission in the scheduled subframe according to a channel access procedure. - View Dependent Claims (7, 8, 9, 10)
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Specification