Method and apparatus to handle uplink (UL) information in a wireless communication system

A communication device to handle UL (Uplink) control information, the communication device comprising:

• a control circuit;
• a processor installed in the control circuit;
• a memory installed in the control circuit and operatively coupled to the processor;
• wherein the processor is configured to execute a program code stored in the memory to handle UL control information by:
• configuring a UE (User Equipment) with multiple serving cells;
• transmitting, from the UE, in a subframe i a first UL control information on a physical channel of a first UL serving cell;
• and
• transmitting, from the UE, in the subframe i a second UL control information on a physical channel of a second UL serving cell;
• wherein if the total transmit power of the UE exceeds {circumflex over (P)}CMAX(i), which is a linear value of UE total configured maximum output power in subframe i, the UE would scale down the transmit power of the physical channel with lower power priority based on types of the first UL control information and the second UL control information, and
• wherein if the first UL control information type is the same as the second UL control information type, a PUCCH (Physical Uplink Control Channel) transmission would have higher priority than a PUSCH (Physical Uplink Shared Channel) transmission.

A method to handle UL (Uplink) control information, comprising:

• configuring a UE (User Equipment) with multiple serving cells;
• transmitting, from the UE, in a subframe i a first UL control information on a physical channel of a first UL serving cell;
• and
• transmitting, from the UE, in the subframe i a second UL control information on a physical channel of a second UL serving cell;
• wherein if the total transmit power of the UE exceeds {circumflex over (P)}CMAX(i), which is a linear value of UE total configured maximum output power in subframe i, the UE would scale down the transmit power of the physical channel with lower power priority based on types of the first UL control information and the second UL control information, and
• wherein if the first uplink control information on PUCCH is a CSI report and the second uplink control information on PUSCH is a HARQ-ACK (Hybrid Automatic Repeat Request Acknowledgement), a PUSCH (Physical Uplink Shared Channel) transmission would have higher power priority than a PUCCH (Physical Uplink Control Channel) transmission.

A communication device to handle UL (Uplink) control information, the communication device comprising:

• a control circuit;
• a processor installed in the control circuit;
• a memory installed in the control circuit and operatively coupled to the processor;
• wherein the processor is configured to execute a program code stored in the memory to handle UL control information by:
• configuring a UE (User Equipment) with multiple serving cells;
• transmitting, from the UE, in a subframe i a first UL control information on a physical channel of a first UL serving cell;
• and
• transmitting, from the UE, in the subframe i a second UL control information on a physical channel of a second UL serving cell;
• wherein if the total transmit power of the UE exceeds {circumflex over (P)}CMAX(i), which is a linear value of UE total configured maximum output power in subframe i, the UE would scale down the transmit power of the physical channel with lower power priority based on types of the first UL control information and the second UL control information, and
• wherein if the first uplink control information on PUCCH is a CSI report and the second uplink control information on PUSCH is a HARQ-ACK (Hybrid Automatic Repeat Request Acknowledgement), a PUSCH (Physical Uplink Shared Channel) transmission would have higher power priority than a PUCCH (Physical Uplink Control Channel) transmission.