Method for configured maximum output power reporting and user equipment

1. A base station configured for carrier aggregation, comprising:

a receiver; and

processing circuitry coupled to the receiver and configured to:

allocate to a user equipment uplink resources for at least one activated serving cell configured with an uplink carrier, the uplink resources for new transmission and the allocated uplink resources may accommodate a power headroom report, and

obtain, responsive to the allocated uplink resources, a configured maximum output power for an activated serving cell configured with an uplink carrier, where the activated serving cell has non-adaptive retransmission of uplink data, or the activated serving cell where the base station schedules channel state information but no allocated uplink grant for transmitting data of an uplink shared channel.

2. The base station of claim 1 , wherein the processing circuitry is further configured to:

obtain, responsive to the allocated uplink resources, a configured maximum output power for the at least one activated serving cell configured with the uplink carrier corresponding to the allocated uplink resources.

3. A method for configured maximum output power reporting, comprising:

judging, by a user equipment, whether for the current subframe the user equipment has non-adaptive retransmission of uplink data on an activated serving cell configured with an uplink carrier;

obtaining, by the user equipment from a physical layer, a configured maximum output power corresponding to the activated serving cell having non-adaptive retransmission of uplink data; and

reporting the obtained configured maximum output power from the physical layer to a base station when, the user equipment, for a current subframe, has uplink resources allocated for new transmission for the activated serving cell and the allocated uplink resources may accommodate the power headroom report.

4. The method according to claim 3 , further comprising:

judging by the user equipment whether the base station schedules channel status information transmission on an activated serving cell configured with an uplink carrier but does not allocate uplink resources to transmit data for the activated serving cell; and

obtaining, by the user equipment from a physical layer, a configured maximum output power corresponding to the activated serving cell if a base station schedules channel status information transmission but does not allocate uplink resources to transmit data for the activated serving cell.

5. A method for configured maximum output power reporting, comprising:

when, for a user equipment, a power headroom report has been triggered, and, for a current subframe, the user equipment has uplink resources allocated for new transmission and the allocated uplink may accommodate the power headroom report, judging, by the user equipment, whether for the current subframe the user equipment has non-adaptive retransmission of uplink data on an activated serving cell configured with an uplink carrier;

obtaining, by the user equipment from a physical layer, a configured maximum output power corresponding to the activated serving cell if for the current subframe the user equipment has non-adaptive retransmission of uplink data on the activated serving cell; and

reporting the obtained configured maximum output power from the physical layer to a base station.

6. The method according to claim 5 ,

wherein the allocated uplink resources for new transmission are for a serving cell of a plurality of activated serving cells, and

wherein the judging judges for each activated serving cell whether, for the current subframe, the user equipment has non-adaptive retransmission of uplink data.

7. The method according to claim 5 , further comprising:

judging by the user equipment whether the base station schedules channel status information transmission on an activated serving cell configured with an uplink carrier but does not allocate uplink resources to transmit data for the activated serving cell; and

obtaining, by the user equipment from a physical layer, a configured maximum output power corresponding to the activated serving cell if a base station schedules channel status information transmission but does not allocate uplink resources to transmit data for the activated serving cell.

8. A method for configured maximum output power reporting, comprising:

judging whether, for a current subframe, a user equipment has uplink resources for new transmission and the uplink resources may accommodate a power headroom report, when a power headroom report is triggered;

judging whether, for a current subframe, the user equipment has non-adaptive retransmission of uplink data on an activated serving cell configured with an uplink carrier, when a power headroom report is triggered;

obtaining, by the user equipment from a physical layer, a configured maximum output power corresponding to the activated serving cell having non-adaptive retransmission of uplink data; and

reporting the configured maximum output power from the physical layer to the base station when, for the current subframe, the user equipment has the uplink resources allocated for new transmission and the allocated uplink resources may accommodate a power headroom report.

9. The method according to claim 8 , further comprising:

judging by the user equipment whether the base station schedules channel status information transmission on an activated serving cell configured with an uplink carrier but does not allocate uplink resources to transmit data for the activated serving cell; and

obtaining, by the user equipment from a physical layer, a configured maximum output power corresponding to the activated serving cell if the base station schedules channel status information transmission but does not allocate uplink resources to transmit data for the activated serving cell.