Method and apparatus for controlling uplink control information transmission in wireless communication system providing widebandwidth services via carrier aggregation
First Claim
1. A method of transmitting uplink control information (UCI) by a terminal configured with multiple cells in a wireless communication system, the method comprising:
- receiving, from a base station, at least two offset information for physical uplink shared channel (PUSCH) configuration;
determining a PUSCH transmission offset according to at least one of the at least two offset information, based on a number of bits of hybrid automatic repeat request (HARQ) acknowledgement (ACK) information;
determining a number of modulation symbols for UCI based on the determined PUSCH transmission offset; and
transmitting, to the base station, the UCI on a PUSCH based on the number of modulation symbols.
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Accused Products
Abstract
A method whereby a user equipment (UE) transmits hybrid automatic repeat request (HARQ) acknowledgement (ACK)/negative ACK (NACK) information corresponding to downlink data received from a corresponding base station (ENB) in a long term evolution-advanced (LTE-A) system supporting carrier aggregation (CA) is provided. When physical uplink shared channel (PUSCH) transmission is not scheduled at the time of transmission of HARQ ACK/NACK information, the UE transmits HARQ ACK/NACK information via physical uplink control channel (PUCCH). When PUSCH transmission is scheduled, the UE transmits HARQ ACK/NACK information multiplexed with PUSCH to the ENB. The amount of HARQ ACK/NACK information increases in proportion to the number of aggregated carriers. The present disclosure specifies scheduling operation of the ENB and HARQ ACK/NACK mapping of the UE that maintain reception performance of HARQ ACK/NACK and PUSCH when HARQ ACK/NACK information is multiplexed with PUSCH.
21 Citations
21 Claims
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1. A method of transmitting uplink control information (UCI) by a terminal configured with multiple cells in a wireless communication system, the method comprising:
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receiving, from a base station, at least two offset information for physical uplink shared channel (PUSCH) configuration; determining a PUSCH transmission offset according to at least one of the at least two offset information, based on a number of bits of hybrid automatic repeat request (HARQ) acknowledgement (ACK) information; determining a number of modulation symbols for UCI based on the determined PUSCH transmission offset; and transmitting, to the base station, the UCI on a PUSCH based on the number of modulation symbols. - View Dependent Claims (2, 3, 4, 5)
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6. A method of receiving uplink control information (UCI) by a base station in a wireless communication system, the method comprising:
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transmitting at least two offset information for physical uplink shared channel (PUSCH) configuration to a terminal; and receiving UCI on a PUSCH from the terminal based on a number of modulation symbols determined based on a PUSCH transmission offset, wherein the PUSCH transmission offset is determined by the terminal according to at least one of the at least two offset information, based on a number of bits of hybrid automatic repeat request (HARQ) acknowledgement (ACK) information. - View Dependent Claims (7, 8, 9, 10)
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11. A terminal configured with multiple cells in a wireless communication system, the terminal comprising:
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a transceiver; and a control unit coupled with the transceiver and configured to; control the transceiver to receive, from a base station, at least two offset information for physical uplink shared channel (PUSCH) configuration, determine a PUSCH transmission offset according to at least one of the at least two offset information, based on a number of bits of hybrid automatic repeat request (HARQ) acknowledgement (ACK) information, determine a number of modulation symbols for uplink control information (UCI) based on the determined PUSCH transmission offset, and control the transceiver to transmit, to the base station, the UCI on a PUSCH based on the number of modulation symbols. - View Dependent Claims (12, 13, 14, 15)
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16. A base station in a wireless communication system, the base station comprising:
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a transceiver; and a control unit coupled with the transceiver and configured to; control the transceiver to transmit at least two offset information for physical uplink shared channel (PUSCH) configuration to a terminal, and control the transceiver to receive uplink control information (UCI) on a PUSCH from the terminal based on a number of modulation symbols determined based on a PUSCH transmission offset, wherein the PUSCH transmission offset is determined by the terminal according to at least one of the at least two offset information, based on a number of bits of hybrid automatic repeat request (HARQ) acknowledgement (ACK) information. - View Dependent Claims (17, 18, 19, 20)
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21. At least one non-transitory computer-readable recording medium for storing a computer program configured to be readable by at least one processor, for instructing the at least one processor to execute a computer process to control for:
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receiving, from a base station, at least two offset index information for physical uplink shared channel (PUSCH) configuration; determining a PUSCH transmission offset according to at least one of the at least two offset index information, based on a number of bits of hybrid automatic repeat request (HARQ) acknowledgement (ACK) information; determining a number of modulation symbols for uplink control information (UCI) based on the determined PUSCH transmission offset; and transmitting, to the base station, the UCI on a PUSCH based on the number of modulation symbols.
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Specification