METHOD AND APPARATUS FOR MULTI-CARRIER SCHEDULING IN WIRELESS COMMUNICATION

1 .- 28 . (canceled)

29 . A user equipment (UE) configured for wireless communication, the UE comprising:

a receiver configured to receive radio resource control (RRC) signaling information, wherein the RRC signaling information comprises configuration information for a target cell of a set of cells;

the receiver is further configured to receive a downlink control information (DCI), wherein whether the DCI comprises target domain information for the target cell is based on a number of cells in the set of cells; and

the receiver is further configured to receive information from at least one cell included in the set of cells, based on the DCI.

30 . The UE of claim 29 , wherein the DCI comprises the target domain information on a condition that the number of cells in the set of cells is one and the configuration information of the RRC signaling information indicates that the DCI comprises the target domain information.

31 . The UE of claim 29 , wherein the DCI does not comprise the target domain information on a condition that the number of cells in the set of cells is greater than one.

32 . The UE of claim 29 , wherein the RRC signaling information is a physical downlink shared channel configuration (PDSCH-Config) information.

33 . The UE of claim 29 , wherein the RRC signaling information is a serving cell configuration (ServingCellConfig) information.

34 . The UE of claim 29 , wherein the target cell is one component carrier (CC).

35 . The UE of claim 29 , further comprising a transmitter, wherein:

the transmitter is configured to send a first message, wherein the first message includes hybrid automatic repeat request (HARQ)-acknowledgement (ACK) bits on each cell in the set of cells scheduled by the DCI, and wherein a first parameter is used for transmitting the first message;

wherein on a condition that the number of cells in the set of cells is one and the configuration information of the RRC signaling information indicates that the DCI includes the target domain information, the DCI comprises the target domain information, and wherein the first parameter is related to the target domain information included in the DCI; and

wherein on a condition that the number of cells in the set of cells is greater than one or the configuration information of the RRC signaling information indicates that the DCI does not comprise the target domain information, the first parameter is set to default information.

36 . The UE of claim 29 further comprising a transmitter, wherein:

the transmitter is configured to send a second message;

wherein a second parameter is used to determine transmit power control (TPC) commands;

wherein on a condition that the number of cells in the set of cells is one and the configuration information of the RRC signaling information indicates that the DCI comprises the target domain information, the DCI comprises the target domain information, and wherein the second parameter is related to the target domain information included in the DCI; and

wherein on a condition that the number of cells in the set of cells is greater than one or the configuration information of the RRC signaling information indicates that the DCI does not comprise the target domain information, the second parameter is set to default information.

37 . The UE of claim 29 , further comprising a transmitter, wherein:

the transmitter is configured to send a third message;

wherein a third parameter is used to determine a cell in which a physical uplink control channel (PUCCH) occupied by the third message is located;

wherein on a condition that the number of cells in the set of cells is one and the configuration information of the RRC signaling information indicates that the DCI comprises the target domain information, the DCI comprises the target domain information, and wherein the third parameter is related to the target domain information included in the DCI; and

wherein on a condition that the number of cells in the set of cells is greater than one or the configuration information of the RRC signaling information indicates that the DCI does not comprise the target domain information, the third parameter is set to default information.

38 . The UE of claim 29 , wherein on a condition that the number of cells included in the set of cells is one and the configuration information of the RRC signaling information indicates that the target domain information included in the DCI comprises a second domain information, the target domain information included in the DCI comprises the second domain information, wherein the second domain information is used to determine that cells included in a second set of cells enter dormancy within an active time; and wherein on a condition that the number of cells included in the set of cells is greater than one or the configuration information of the RRC signaling information indicates that the DCI does not comprise the second domain information, the target domain information included in the DCI does not include the second domain information, and the DCI is not used for a serving cell dormancy indication.

39 . A method for use in a user equipment (UE) configured for wireless communication, the method comprising:

receiving radio resource control (RRC) signaling information, wherein the RRC signaling information comprises configuration information for a target cell of a set of cells;

receiving a downlink control information (DCI), wherein whether the DCI comprises target domain information for the target cell is based on a number of cells in the set of cells; and

receiving information from at least one cell included in the set of cells, based on the DCI.

40 . The method of claim 39 , wherein the DCI comprises the target domain information on a condition that the number of cells in the set of cells is one and the configuration information of the RRC signaling information indicates that the DCI comprises the target domain information.

41 . The method of claim 39 , wherein the DCI does not comprise the target domain information on a condition that the number of cells in the set of cells is greater than one.

42 . The method of claim 39 , wherein the RRC signaling information is a physical downlink shared channel configuration (PDSCH-Config) information.

43 . The method of claim 39 , wherein the RRC signaling information is a serving cell configuration (ServingCellConfig) information.

44 . The method of claim 39 , wherein the target cell is one component carrier (CC).

45 . The method of claim 39 , further comprising:

sending a first message, wherein the first message includes hybrid automatic repeat request (HARQ)—acknowledgement (ACK) bits on each cell in the set of cells scheduled by the DCI, and wherein a first parameter is used for transmitting the first message;

wherein on a condition that the number of cells in the set of cells is one and the configuration information of the RRC signaling information indicates that the DCI includes the target domain information, the DCI comprises the target domain information, and wherein the first parameter is related to the target domain information included in the DCI; and

wherein on a condition that the number of cells in the set of cells is greater than one or the configuration information of the RRC signaling information indicates that the DCI does not comprise the target domain information, the first parameter is set to default information.

46 . The method of claim 39 further comprising:

sending a second message;

wherein a second parameter is used to determine transmit power control (TPC) commands;

wherein on a condition that the number of cells in the set of cells is one and the configuration information of the RRC signaling information indicates that the DCI comprises the target domain information, the DCI comprises the target domain information, and wherein the second parameter is related to the target domain information included in the DCI; and

wherein on a condition that the number of cells in the set of cells is greater than one or the configuration information of the RRC signaling information indicates that the DCI does not comprise the target domain information, the second parameter is set to default information.

47 . The method of claim 39 , further comprising:

sending a third message;

wherein a third parameter is used to determine a cell in which a physical uplink control channel (PUCCH) occupied by the third message is located;

wherein on a condition that the number of cells in the set of cells is one and the configuration information of the RRC signaling information indicates that the DCI comprises the target domain information, the DCI comprises the target domain information, and wherein the third parameter is related to the target domain information included in the DCI; and

wherein on a condition that the number of cells in the set of cells is greater than one or the configuration information of the RRC signaling information indicates that the DCI does not comprise the target domain information, the third parameter is set to default information.

48 . The method of claim 39 , wherein on a condition that the number of cells included in the set of cells is one and the configuration information of the RRC signaling information indicates that the target domain information included in the DCI comprises a second domain information, the target domain information included in the DCI comprises the second domain information, wherein the second domain information is used to determine that cells included in a second set of cells enter dormancy within an active time; and wherein on a condition that the number of cells included in the set of cells is greater than one or the configuration information of the RRC signaling information indicates that the DCI does not comprise the second domain information, the target domain information included in the DCI does not include the second domain information, and the DCI is not used for a serving cell dormancy indication.