Method and apparatus for controlling uplink power in wireless communication system
AssigneeLG Electronics Inc.
InventorYunjung Yi
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Abstract
A method and apparatus for controlling an uplink power in a wireless communication system is provided. A user equipment (UE) sets a first maximum power for a first set of uplink subframes for a first eNodeB (eNB) in which the UE can allocate up to the first maximum power to uplink signals to be transmitted to the first eNB, and sets a second maximum power for a second set of uplink subframes for the first eNB in which the UE can allocate up to the second maximum power to uplink signals to be transmitted to the first eNB. The uplink signals are transmitted to the first eNB only in the first set of uplink subframes. Further, the uplink signals are transmitted to both the first eNB and a second eNB in the second set of uplink subframes.
Claims12
A method for controlling, by a user equipment (UE), an uplink power for dual connectivity in a wireless communication system, wherein the UE is connected to both a first eNodeB (eNB) and a second eNB in asynchronous dual connectivity in which the first eNB and the second eNB are not aligned with each other, the method comprising:
- configuring a first maximum power or a second maximum power, wherein the first maximum power is used in subframes where uplink (UL) transmission is performed to only one of the first eNB or the second eNB, and the second maximum power is used in subframes where the UL transmission can be performed to both the first and second eNBs;
- determining whether there is UL transmission to the second eNB in a subframe;
- setting a transmission power for transmission to the first eNB in the subframe according to the first maximum power when there is no UL transmission to the second eNB in the subframe;
- and
- setting a transmission power for transmission to the first eNB in the subframe according to the second maximum power when there is UL transmission to the second eNB in the subframe.
A user equipment (UE) in a wireless communication system, wherein the UE is connected to both a first eNodeB (eNB) and a second eNB in asynchronous dual connectivity in which the first eNB and the second eNB are not aligned with each other, the UE comprising:
- a memory;
- a radio frequency (RF) unit;
- and
- a processor, coupled to the memory and the RF unit, that:
- configures a first maximum power or a second maximum power, wherein the first maximum power is used in subframes where uplink (UL) transmission is performed to only one of the first eNB or the second eNB, and the second maximum power is used in subframes where the UL transmission can be performed to both the first and second eNBs,
- determines whether there is UL transmission to the second eNB in a subframe, and
- sets a transmission power for transmission to the first eNB in the subframe according to the first maximum power when there is no UL transmission to the second eNB in the subframe, and
- sets a transmission power for transmission to the first eNB in the subframe according to the second maximum power when there is UL transmission to the second eNB in the subframe.
Dependencies are inferred from the claim text.