Method for transmitting control information and a device therefor
AssigneeLG Electronics Inc.
InventorsSuckchel Yang, Mingyu Kim, Seunghee Han
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Abstract
The present invention relates to a wireless communication system. More specifically, the present invention relates to a method for transmitting uplink control information and to a device therefor, and relates to a method comprising the steps of: selecting one uplink control channel resource corresponding to a plurality of HARQ-ACKs, from a plurality of uplink control channel resources; and transmitting a bit value corresponding to the plurality of HARQ-ACKs, by using the selected uplink control channel resource. The present invention also relates to a device for the method.
Claims16
A method for transmitting uplink control information by a user equipment (UE) configured with a plurality of serving cells including a primary cell and a secondary cell in a wireless communication system, the method comprising:
- receiving, by the UE from a base station (BS), information through an Semi-Persistent Scheduling (SPS) activation Physical Downlink Control Channel (PDCCH), the information indicating at least one Physical Uplink Control Channel (PUCCH) resource of a first set of PUCCH resources having been configured by an RRC (Radio Resource Control) layer and corresponding to a predefined PUCCH format;
- after receiving the SPS activation PDCCH, receiving, by the UE from the BS, an SPS Physical Downlink Shared Channel (PDSCH) via the primary cell without receiving a corresponding PDCCH in the primary cell, the SPS PDSCH including only one transport block when the primary cell is set to a first transmission mode supporting a transmission of only a single transport block via the SPS PDSCH, the SPS PDSCH including up to two transport blocks when the primary cell is set to a second transmission mode supporting a transmission of up to two transport blocks via the SPS PDSCH;
- generating, by the UE, a Hybrid Automatic Repeat reQuest-Acknowledgement (HARQ-ACK) response corresponding to the SPS PDSCH received via the primary cell;
- one of:
- selectively transmitting, by the UE to the BS, two bits corresponding to the HARQ-ACK response using one of a second set of PUCCH resources including the resource indicated by the SPS activation PDCCH when the primary cell is set to the first transmission mode, and
- selectively transmitting, by the UE to the BS, the two bits corresponding to the HARQ-ACK response using one of a second set of PUCCH resources including the resource indicated by the SPS activation PDCCH and another resource related to the resource indicated by the SPS PDCCH when the primary cell is set to the second transmission mode.
A user equipment (UE) configured to transmit uplink control information in a wireless communication system, the UE configured with a plurality of serving cells including a primary cell and a secondary cell and comprising:
- an RF (Radio Frequency) unit;
- and
- a processor operatively connected to the RF unit and configured to:
- receive, from a base station (BS), information through an Semi-Persistent Scheduling (SPS) activation Physical Downlink Control Channel (PDCCH), the information indicating at least one Physical Uplink Control Channel (PUCCH) resource of a first set of PUCCH resources having been configured by an RRC (Radio Resource Control) layer and corresponding to a predefined PUCCH format;
- after receiving the SPS activation PDCCH, receive, from the BS, an SPS Physical Downlink Shared Channel (PDSCH) via the primary cell without receiving a corresponding PDCCH in the primary cell, the SPS PDSCH including only one transport block when the primary cell is set to a first transmission mode supporting a transmission of only a single transport block via the SPS PDSCH, the SPS PDSCH including up to two transport blocks when the primary cell is set to a second transmission mode supporting a transmission of up to two transport blocks via the SPS PDSCH;
- generate a Hybrid Automatic Repeat reQuest-Acknowledgement (HARQ-ACK) response corresponding to the SPS PDSCH received via the primary cell;
- one of:
- selectively transmit two bits corresponding to the HARQ-ACK response using one of a second set of PUCCH resources including the resource indicated by the SPS activation PDCCH when the primary cell is set to the first transmission mode, and
- selectively transmit the two bits corresponding to the HARQ-ACK response using one of a second set of PUCCH resources including the resource indicated by the SPS activation PDCCH and another resource related to the resource indicated by the SPS activation PDCCH when the primary cell is set to the second transmission mode.
Dependencies are inferred from the claim text.