摘要:
The present invention relates to a method for monitoring a control channel and an apparatus thereof. A reference carrier is set, and then the multi-carrier sends blind decoding area information based on the reference carrier to monitor a control channel. A terminal monitors the control channel based on the blind decoding area information. The terminal performs blind decoding only for a component carrier required, and thus reduces power consumption and reception complexity.
摘要:
Provided are a method and apparatus for implementing a hybrid automatic repeat request (HARQ). A terminal receives a plurality of transmission blocks through a plurality of downlink component carrier waves, and determines a plurality of ACK/NACK resources for the plurality of transmission blocks. If the plurality of ACK/NACK resources overlaps, the terminal uses the overlapping ACK/NACK resources to transmit one bundled ACK/NACK signal for the plurality of transmission blocks through an uplink component carrier wave.
摘要:
A method for transmitting ACK/NACK signal in a wireless communication system applied carrier aggregation is disclosed herein. More specifically, the method includes receiving multiple transmission blocks respectively through multiple downlink component carriers from a base station, determining ACK/NACK responses corresponding to each of the multiple transmission blocks by decoding the multiple transmission blocks, mapping the ACK/NACK responses to a ACK/NACK state information, and transmitting the ACK/NACK state information through a single uplink component carrier, wherein ACK information included in the ACK/NACK state information indicates a number of ACK response among the ACK/NACK responses.
摘要:
The present invention relates to wideband wireless access system, and more particularly to an effective method for transmitting control information during the combination of multiple carriers. As one embodiment of the present invention, there is provided a method by which a base station allocates a carrier to a terminal in a wideband wireless access system supporting multiple carriers, the method comprising: transmitting, to the terminal, a terminal specific or terminal group specific carrier allocation information that includes information about at least one of control information and data; and transmitting, to the terminal, a carrier combination control information that includes information about a change in the at least one candidate carrier available.
摘要:
A method and an apparatus for reporting a channel state in a multi-carrier system are provided. User equipment receives an uplink grant including an uplink resource allocation and a channel quality indicator (CQI) request via one downlink carrier from among a plurality of downlink carriers. The user equipment reports CQIs for the plurality of downlink carriers via a plurality of subframes in accordance with the CQI request.
摘要:
Provided are a device and method supporting multi-carrier waves. The device comprises: a multi-carrier control unit for receiving carrier wave allocation data including data relating to allocated carrier waves and deactivating a portion of the carrier waves included in the carrier wave allocation data or else receiving carrier wave control data including data relating to additional carrier waves; and a multi-carrier operation unit which operates using multiple carrier waves allocated on the basis of the carrier wave allocation data and the carrier wave control data. The base station scheduling burden can be reduced and the power consumption of the terminal can be reduced.
摘要:
A method of performing hybrid automatic repeat request (HARQ) of a user equipment (UE) in a multiple-carrier system is provided. The UE transmits uplink data on an uplink carrier. The UE receives acknowledgement (ACK)/not-acknowledgement (NACK) for the uplink data on a downlink carrier associated with the uplink carrier. Accordingly, HARQ can be supported in a multiple-carrier system.
摘要:
The present invention relates to a wireless access system, and more particularly, to an initial system under a multi-carrier combination condition. A method of for performing an initial access in a base station which supports the multi-band of a terminal according to one embodiment of the present invention comprises the steps of: searching one or more downlink component carriers of the base station; receiving system information including a broadcast channel of a first downlink component carrier from among the searched one or more downlink component carriers and information for indicating one or more uplink component carriers connected to the first downlink component carrier; transmitting a first message to the base station through a first uplink component carrier from among one or more uplink component carriers indicated by the received system information; and receiving a second message including uplink authorization information from the base station through the first downlink component carrier.
摘要:
Disclosed are a device and method for transmitting or receiving the system information. The system information transmitting device comprises a processor for transmitting the system information on a broadcast channel, and the system information comprises multi-carrier information relating to a multi-carrier operation. The present invention allows additional information elements to be included in the system information, while also providing backward compatibility with legacy systems
摘要:
A method of performing hybrid automatic repeat request (HARQ) by a source station in a wireless communication system is provided. The method includes: transmitting data to a destination station at a transmission start time; receiving an acknowledgment (ACK) or negative-acknowledgement (NACK) signal for the data from the destination station after a first transmission time interval elapses from the transmission start time; and upon receiving the NACK signal, retransmitting the data after a second transmission time interval elapses from the transmission start time, wherein the second transmission time interval is one transmission time interval selected from a plurality of predetermined transmission time intervals. Accordingly, the wireless communication system can perform a heterogeneous HARQ process in which an HARQ period, an ACK/NACK transmission start time, and the like are different.