Uplink transmission in carrier aggregation environment
First Claim
1. A method of controlling uplink transmission by a user equipment in a wireless communication system, the method comprising:
- configuring a transmission mode for a PUSCH (Physical Uplink Shared Channel) as one of a SU-MIMO (Single User Multiple Input Multiple Output) mode and a Non-SU-MIMO mode; and
performing a procedure for UCI (Uplink Control Information) transmission at a subframe, wherein the UCI needs to be transmitted at the subframe,wherein, if the SU MIMO mode is configured and if there is allocation of a PUSCH at the subframe, transmission of the UCI is dropped at the subframe, andwherein, if the Non-SU-MIMO mode is configured and if there is allocation of a PUSCH at the subframe, the UCI is transmitted via the PUSCH at the subframe.
1 Assignment
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Accused Products
Abstract
The present invention relates to a wireless communication system, and more particularly, to a method of uplink transmission, in which a user equipment transmits a signal in uplink in a wireless communication system. The present invention includes switching an uplink transmission mode used in transmitting the signal to a base station to either a first transmission mode or a second transmission mode, generating a plurality of signals to transmit to the base station via a plurality of component carriers (CCs), and transmitting a plurality of the signals to the base station according to the switched uplink transmission mode, wherein the first transmission mode allows multi-carrier characteristics for the signal transmitted via a plurality of the component carriers and wherein the second transmission mode requests single carrier characteristics for the signals transmitted via a plurality of the component carriers.
38 Citations
8 Claims
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1. A method of controlling uplink transmission by a user equipment in a wireless communication system, the method comprising:
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configuring a transmission mode for a PUSCH (Physical Uplink Shared Channel) as one of a SU-MIMO (Single User Multiple Input Multiple Output) mode and a Non-SU-MIMO mode; and performing a procedure for UCI (Uplink Control Information) transmission at a subframe, wherein the UCI needs to be transmitted at the subframe, wherein, if the SU MIMO mode is configured and if there is allocation of a PUSCH at the subframe, transmission of the UCI is dropped at the subframe, and wherein, if the Non-SU-MIMO mode is configured and if there is allocation of a PUSCH at the subframe, the UCI is transmitted via the PUSCH at the subframe. - View Dependent Claims (2, 3, 4)
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5. A user equipment configured to control uplink transmission in a wireless communication system, the user equipment comprising:
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a radio frequency unit; and a processor, wherein the processor is configured to; configure a transmission mode for a PUSCH (Physical Uplink Shared Channel) as one of a SU-MIMO (Single User Multiple Input Multiple Output) mode and a Non-SU-MIMO mode, and perform a procedure for UCI (Uplink Control Information) transmission at a subframe, wherein the UCI needs to be transmitted at the subframe, wherein, if the SU-MIMO mode is configured and if there is allocation of a PUSCH at the subframe, transmission of the UCI is dropped at the subframe, and wherein, if the Non-SU-MIMO mode is configured and if there is allocation of a PUSCH at the subframe, the UCI is transmitted via the PUSCH at the subframe. - View Dependent Claims (6, 7, 8)
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Specification