Method and device for controlling the transception of multiple pieces of control information in a wireless communication system
View Patent ↗The present invention relates to a method and device for dynamically controlling the multiple transmission of control information in a wireless communication system. The method for controlling the transception of multiple physical uplink control channels (PUCCHs) in a wireless communication system comprises: a base station transmitting instruction information, which controls the transmission of multiple PUCCHs, to a user terminal that performs the transmission of multiple PUCCHs through either a physical downlink control channel (PDCCH), a medium access control (MAC) layer, or radio resource control (RRC) signaling; and receiving multiple PUCCHs from said user terminal according to a multiple transmission instruction in said instruction information. Said instruction information transmitted through said physical channel is characterized by being either a field corresponding to 1- or 2-bit information constituting a physical downlink control channel (PDCCH) signal, or a field constituting a PDCCH signal scrambled using a PUCCH cell radio network temporary identifier (C-RNTI).
1. A method of receiving multiple Physical Uplink Control Channels (PUCCHs), the method comprising:
transmitting, by a base station (BS), instruction information that indicates transmission of multiple PUCCHs to a user equipment (UE); and
receiving the multiple PUCCHs from the UE based on the instruction information,
wherein the instruction information is transmitted through a Radio Resource Control (RRC) signaling and the RRC signaling comprises information associated with a number of PUCCH transmissions to be performed in at least one component carrier, and
wherein, when the instruction information corresponds to a field forming a Physical Downlink Control Channel (PDCCH) signal scrambled by a PUCCH Cell Radio Network Temporary Identifier (C-RNTI), the instruction information activates or releases transmission of the multiple PUCCHs, and a transmission scheme for the multiple PUCCHs is set in a TPC_PUCCH field (Transmit Power Control command for PUCCH) of the PDCCH or is instructed based on a scheme instructed through RRC signaling.
2. The method of claim 1 , wherein, when the instruction information corresponds to information of 1 or 2 bits in the field forming a Physical Downlink Control Channel (PDCCH) signal, the instruction information instructs one of triggering of transmission of the multiple PUCCHs, instructing a transmission scheme for the multiple PUCCHs, and interruption of transmission of the multiple PUCCHs.
3. A method of transmitting multiple Physical Uplink Control Channels (PUCCHs), the method comprising:
receiving, by a user equipment (UE), instruction information that indicates transmission of multiple PUCCHs from a base station;
transmitting the multiple PUCCHs to the base station based on the instruction information;
when the instruction information corresponds to a field forming a Physical Downlink Control Channel (PDCCH) signal scrambled by a PUCCH Cell Radio Network Temporary Identifier (C-RNTI), descrambling the PDCCH by a PUCCH C-RNTI; and
activating or releasing transmission of the multiple PUCCHs based on a field forming a descrambled signal when the descrambling succeeds, and transmitting the multiple PUCCHs based on a scheme set in a TPC_PUCCH field (Transmit Power Control command for PUCCH) of the descrambled PDCCH or a scheme instructed through a Radio Resource Control (RRC) signaling,
wherein the instruction information is received through a Radio Resource Control (RRC) signaling comprising information associated with a number of PUCCH transmissions to be performed in at least one component carrier.
4. The method of claim 3 , further comprising:
determining whether the instruction information instructs one of triggering of transmission of the multiple PUCCHs, instructing a transmission scheme for the multiple PUCCHs, and interruption of transmission of the multiple PUCCHs,
wherein, when the instruction information corresponds to information of 1 or 2 bits in the field forming a Physical Downlink Control Channel (PDCCH) signal.
5. An apparatus to receive multiple Physical Uplink Control Channels (PUCCHs), the apparatus comprising:
a controller to generate instruction information that indicates transmission of multiple PUCCHs for a user equipment (UE);
a transmitting unit to transmit the generated instruction information to the UE; and
a receiving unit to receive the multiple PUCCHs from the UE based on the instruction information,
wherein the instruction information is transmitted through a Radio Resource Control (RRC) signaling and the RRC signaling comprises information associated with a number of PUCCH transmissions to be performed in at least one component carrier, and
wherein, when the instruction information corresponds to a field forming a Physical Downlink Control Channel (PDCCH) signal scrambled by a PUCCH Cell Radio Network Temporary Identifier (C-RNTI), the instruction information activates or releases transmission of multiple PUCCHs, and a transmission scheme for the multiple PUCCHs is set in a TPC_PUCCH field (Transmit Power Control command for PUCCH) of the PDCCH or instructed based on a scheme instructed through RRC signaling.
6. The apparatus of claim 5 , wherein, when the instruction information corresponds to information of 1 or 2 bits in the field forming a Physical Downlink Control Channel (PDCCH) signal, the instruction information instructs one of triggering of transmission of the multiple PUCCHs, instructing a transmission scheme for the multiple PUCCHs, and interruption of transmission of the multiple PUCCHs.
7. An apparatus to dynamically transmit multiple Physical Uplink Control Channels (PUCCHs), the apparatus comprising:
a transmitting unit to transmit multiple PUCCHs to a base station;
a receiving unit to receive, from the base station, instruction information that indicates transmission of multiple PUCCHs; and
a controller to control the transmitting unit to transmit the multiple PUCCHs to the base station based on the instruction information,
wherein the instruction information is received through a Radio Resource Control (RRC) signaling and the RRC signaling comprises information associated with a number of PUCCH transmissions to be performed in at least one component carrier, and
wherein, when the instruction information corresponds to a field forming a Physical Downlink Control Channel (PDCCH) signal scrambled by a PUCCH Cell Radio Network Temporary Identifier (C-RNTI), the controller descrambles the PDCCH by a PUCCH C-RNTI, and activates or releases transmission of the multiple PUCCHs based on a field forming a descrambled signal when the descrambling succeeds, and controls the transmitting unit to transmit the multiple PUCCHs based on a scheme that is set in a TPC_PUCCH field (Transmit Power Control command for PUCCH) of the descrambled PDCCH or a scheme instructed through RRC signaling.
8. The apparatus of claim 7 , wherein, when the instruction information corresponds to information of 1 or 2 bits in the field forming a Physical Downlink Control Channel (PDCCH) signal, the controller determines whether the instruction information instructs one of triggering of transmission of the multiple PUCCHs, instructing a transmission scheme for the multiple PUCCHs, and interruption of transmission of the multiple PUCCHs.