摘要:
Provided are an apparatus and method for transmitting uplink control information (UCI) in a multiple carrier system. The method comprises the steps of: generating uplink control information for measuring a downlink component carrier (DL CC) set in a terminal; selecting a physical uplink shared channel (PUSCH) of one uplink component carrier from among PUSCHs of at least two uplink component carriers set in the terminal, according to a priority order; and transmitting the uplink control information through the PUSCH of the selected uplink component carrier.
摘要:
Provided are a method and device for transmitting uplink control information in a wireless communication system. A terminal determines a feedback cell where uplink transmission blocks and uplink control information are multiplexed, from among a plurality of serving cells. The terminal multiplexes the uplink transmission blocks and the uplink control information on an uplink shared channel of the feedback cell, and the multiplexed uplink control information is transmitted on the uplink shared channel of the feedback cell.
摘要:
Provided is a transmission power control method for an uplink control channel of a terminal in a multi-carrier system where a plurality of downlink component carriers and at least one uplink component carrier are set in the terminal. The method includes: receiving a plurality of downlink grants from a base station; checking a Transmission Power Command (TPC) field included in each of the plurality of downlink grants; determining a transmission power of an uplink control channel (PUCCH) with a value of the checked TPC field; and transmitting the uplink control channel at the determined transmission power, with one configured uplink component carrier among the at least one uplink component carrier.
摘要:
Disclosed are a method and a device for transmitting an acknowledgement. A terminal receives at least one downlink transport block from at least one serving cell. The terminal selects one of an explicit resource and an implicit resource, and transmits an acknowledgement for at least one said downlink transport block by using the selected resource.
摘要:
The present invention provides an uplink transmission method and apparatus in a wireless communication system. A terminal receives an uplink resource allocation from a base station; and transmits uplink transmission blocks to a PUSCH (physical uplink shared channel) by using the uplink resource allocation. The uplink resource allocation indicates an allocated RBs (resource blocks) within a subframe that includes a plurality of RBs. The subframe is divided into at least one PUCCH (physical uplink control channel) area for PUCCHs and a plurality of PUSCH (physical uplink shared channel) area for PUSCHs, wherein the PUCCH area is arranged between the plurality of PUSCH regions.
摘要:
The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and a device which enable a terminal to receive a control channel in a wireless communication system that uses multi-carriers, the method comprising the following steps: receiving a plurality of search space through a sub-frame, wherein each of the search spaces includes a plurality of control channel candidate sets and each of the search spaces corresponds to each of the carriers; and monitoring the control channel candidates for control channels, wherein the plurality of search spaces are connected in the resource region for the control channels according to an allocation pattern and with the starting point as the basis, and the allocation pattern changes according to time.
摘要:
The present invention provides a method for transmitting uplink control information and a user device, which transmits ACK/NACK (ACKnowledgement/Negative ACK) information and uplink control information other than the ACK/NACK information using a first PUCCH resource for transmitting the ACK/NACK information and a second PUCCH resource for transmitting the uplink control information within an uplink sub-frame, respectively when the first PUCCH resource and the second PUCCH resource belong to the same PUCCH area in each slot of the uplink sub-frame, and to drop the transmission of the uplink control information other than the ACK/NACK information using the first PUCCH resource when the first PUCCH resource and the second PUCCH resource belong to different PUCCH areas within the uplink sub-frame.
摘要:
The present invention is directed to a wireless communication system. More specifically, the present invention is directed to a method and an apparatus of controlling uplink transmission at a user equipment in a wireless communication system, wherein the user equipment is connected to multiple component carriers, which includes receiving configuration information for transmitting an uplink signal from a base station; and identifying a time for transmitting the uplink signal to the base station on a corresponding uplink component carrier in use of the configuration information, wherein if the corresponding uplink component carrier is in a non-available state at the time for transmitting the uplink signal, the uplink signal is not transmitted.
摘要:
A method for transmitting uplink control information of a user equipment in a multi-carrier system is provided. The method includes: transmitting each of acknowledgement/not-acknowledgement (ACK/NACK) for downlink data transmitted by a base station through multiple downlink component carriers; and transmitting channel state information indicating a state of a downlink channel to the base station, wherein each of the ACK/NACK and the channel state information are allocated to the same uplink control channel resource in a subframe, and if each of the ACK/NACK and the channel state information are reserved to be transmitted on the same subframe, each of the ACK/NACK only is transmitted. Accordingly, a user equipment can transmit uplink control information while preserving a single-carrier property of an uplink signal in a multi-carrier system using carrier aggregation.
摘要:
A method and an apparatus for receiving downlink data in a multi-carrier system are provided. A terminal receives a downlink grant on a physical downlink control channel (PDCCH) via a first component carrier, and determines a transmission power of a physical downlink shared channel (PDSCH) depending on whether a control channel exists in each orthogonal frequency division multiplexing (OFDM) symbol of a subframe of a second component carrier that is indicated by the downlink grant. Based on the transmission power of the PDSCH, the terminal receives downlink data on the PDSCH indicated by the downlink grant via the second component carrier. When a control channel and a data channel coexist in the same OFDM symbol, the reliability of receiving the control channel can be increased.