Method and apparatus for controlling uplink control information in wireless communication system
Provided is a method and an apparatus for transmitting uplink control information by a terminal in wireless communication system. When a PUCCH resource used for transmitting only periodic CSI from a subframe, the resource is a first resource, and a resource indicated by ARI is a second resource, when a setting allows transmitting together ACK/NACK and the periodic CSI through a PUCCH from the same subframe, the first resource and the second resource are mutually exclusive, and the second resource that is used for transmitting together the ACK/NACK and the periodic CSI uses the resource indicated by the ARI from resources determined by an RRC.
1. A method of receiving uplink control information (UCI) by a base station (BS) in a wireless communication system, the method comprising:
transmitting, to a user equipment (UE), a first higher layer message informing the UE of a first physical uplink control channel (PUCCH) resource;
transmitting, to the UE, a second higher layer message informing the UE of a set of PUCCH resources; and
receiving at least one of ACK/NACK information and channel state information (CSI) on the first PUCCH resource or on a second PUCCH resource from the set of PUCCH resources,
wherein based on the UE having only the CSI among the ACK/NACK information and the CSI, the CSI is received on the first PUCCH resource, and
wherein based on the UE i) having both the ACK/NACK information and the CSI and ii) having received a field informing the UE of the second PUCCH resource from the set of PUCCH resources through downlink control information (DCI), the ACK/NACK information and the CSI are received on the second PUCCH resource.
2. The method of claim 1 , wherein the DCI is transmitted through a physical downlink control channel (PDCCH).
3. The method of claim 1 , wherein the first higher layer message is included in a radio resource control (RRC) message.
4. The method of claim 1 , wherein the second higher layer message is included in a radio resource control (RRC) message.
5. A base station (BS) for receiving uplink control information (UCI), the BS comprising:
a transceiver for transmitting or receiving a radio signal; and
a processor operatively coupled to the transceiver,
wherein the processor is configured to:
transmit, to a user equipment (UE), a first higher layer message informing the UE of a first physical uplink control channel (PUCCH) resource;
transmit, to the UE, a second higher layer message informing the UE of a set of PUCCH resources; and
receive at least one of ACK/NACK information and channel state information (CSI) on the first PUCCH resource or on a second PUCCH resource from the set of PUCCH resources,
wherein based on the UE having only the CSI among the ACK/NACK information and the CSI, the CSI is received on the first PUCCH resource, and
wherein based on the UE i) having both the ACK/NACK information and the CSI and ii) having received a field informing the UE of the second PUCCH resource from the set of PUCCH resources through downlink control information (DCI), the ACK/NACK information and the CSI are received on the second PUCCH resource.
6. The BS of claim 5 , wherein the DCI is transmitted through a physical downlink control channel (PDCCH).
7. The BS of claim 5 , wherein the first higher layer message is included in a radio resource control (RRC) message.
8. The BS of claim 5 , wherein the second higher layer message is included in a radio resource control (RRC) message.
9. An apparatus in a wireless communication system, the apparatus comprising:
a processor; and
a memory coupled to the processor,
wherein the processor is configured to:
transmit, to a user equipment (UE), a first higher layer message informing the UE of a first physical uplink control channel (PUCCH) resource;
transmit, to the UE, a second higher layer message informing the UE of a set of PUCCH resources; and
receive at least one of ACK/NACK information and channel state information (CSI) on the first PUCCH resource or on a second PUCCH resource from the set of PUCCH resources,
wherein based on the UE having only the CSI among the ACK/NACK information and the CSI, the CSI is received on the first PUCCH resource, and
wherein based on the UE i) having both the ACK/NACK information and the CSI and ii) having received a field informing the UE of the second PUCCH resource from the set of PUCCH resources through downlink control information (DCI), the ACK/NACK information and the CSI are received on the second PUCCH resource.
10. The apparatus of claim 9 , wherein the DCI is transmitted through a physical downlink control channel (PDCCH).
11. The apparatus of claim 9 , wherein the first higher layer message is included in a radio resource control (RRC) message.
12. The apparatus of claim 9 , wherein the second higher layer message is included in a radio resource control (RRC) message.