摘要:
A method according to an embodiment includes receiving, from a base station, first component information for transmitting first channel information for a first frequency band; receiving, from the base station, second component information for transmitting second channel information for a second frequency band added to the first frequency band; transmitting the first channel information to the base station in accordance with the first component information; and transmitting the second channel information to the base station in accordance with the second component information. When the point of time of the transmission of the first channel information and the point of time of the transmission of the second channel information coincide with each other, either the first channel information or the second channel information is transmitted in accordance with a predetermined drop rule.
摘要:
Provided is an operating method in multiple cells, and a wireless device using same. The wireless device monitors a control channel in each subframe of a normal cell. The wireless device receives information regarding the transmission power of a physical signal of an expanded cell having an unmonitored control channel, and receives the physical signal in the expanded cell.
摘要:
Provided is a method for transmitting a sounding reference signal by a terminal, and a terminal using the method. The method comprises the following steps: receiving carrier information indicating the carrier via which a sounding reference signal is to be transmitted; receiving a physical downlink shared channel (PDSCH) through a first downlink component carrier; and transmitting a sounding reference signal through a second downlink component carrier, wherein the second downlink component carrier is determined based on the carrier information.
摘要:
The present invention relates to a method and apparatus for transmitting uplink control information (UCI) in a carrier aggregation system wherein a plurality of serving cells is aggregated. The method comprises the steps of: receiving a downlink signal through at least one of the serving cells; generating first UCI and second UCI responding to the downlink signal; transmitting the first UCI through a first serving cell; and transmitting the second UCI through a second serving cell. The first serving cell and the second serving cell are different from each other, and the first UCI and the second UCI are different kinds of uplink control information than each other.
摘要:
According to one embodiment, a method for transmitting acknowledgement/not-acknowledgement (ACK/NACK) of a user equipment in a wireless communication system. Includes: receiving uplink-downlink (UL-DL) configuration 5 information on a plurality of subframes; receiving data in at least one subframe among the plurality of subframes; configuring ACK/NACK for the received data; and transmitting the ACK/NACK through a UL subframe.
摘要:
Provided are a method and apparatus for transmitting channel status information (CSI) of a user equipment (UE) in a carrier aggregation system. The method includes: receiving an uplink grant including a CSI request field from a base station (BS); and transmitting aperiodic CSI for a first serving cell, a first serving cell set or a second serving cell set according to a bit value of the CSI request field to the BS via the first serving cell.
摘要:
Provided are a method and apparatus for transmitting positive-acknowledgement (ACK)/negative-acknowledgement (NACK) in a time division duplex (TDD)-based wireless communication system. A user equipment receives an uplink grant which includes an uplink resource assignment and an uplink downlink assignment index (DAI), determines an ACK/NACK payload size on the basis of a value of the uplink DAI, and generates an ACK/NACK response for the at least one downlink transport block. The user equipment multiplexes the ACK/NACK response on an uplink transport block, and transmits the multiplexed ACK/NACK response.
摘要:
Provided is a channel status information (CSI) transmission method performed by a user equipment in a carrier aggregation system. The method includes: allocating a plurality of serving cells; configuring a subframe predetermined to transmit CSI for a single serving cell among the allocated plurality of serving cells; and if uplink data transmission via a physical uplink shared channel (PUSCH) region exists in the configured subframe and if the single serving cell is deactivated, transmitting deactivation confirmation information for indicating that the single serving cell is deactivated via the PUSCH region together with the uplink data.
摘要:
Provided are a method and apparatus for transmitting and receiving a signal of a user equipment in a time division duplex (TDD)-based carrier aggregation system. The method includes: receiving a downlink grant for at least one subframe of a secondary cell via a subframe of a primary cell; and receiving downlink data in the at least one subframe of the secondary cell on the basis of the downlink grant, wherein the primary cell and the secondary cell are set to different downlink (DL)-uplink (UL) configurations among DL-UL configurations indicating how a downlink subframe and an uplink subframe are configured in a radio frame, and wherein the downlink grant includes a downlink subframe index (DSI) indicating the at least one subframe of the secondary cell.
摘要:
Provided are a method and apparatus for adjusting sounding reference signal transmission power. A terminal a plurality of transmit powers used for transmitting a plurality of sounding reference signals (SRSs) in a sounding reference symbol. If a total transmission power for the plurality of SRSs exceeds a maximum transmission power, the terminal scales each transmission power by the same scale factor.