Abstract:
Disclosed are a method for transceiving a reference signal in a wireless connection system and a terminal therefor. More particularly, the method comprises the steps of: generating a plurality of uplink reference signal sequences; mapping the generated plurality of uplink reference signal sequences to each of three symbols in one frame; and transmitting the mapped uplink reference signals to a base station. The plurality of uplink reference signal sequences is generated by applying an orthogonal cover code having a length of 3.
Abstract:
Disclosed are a method for transceiving data in a wireless access system, and a base station and terminal therefor. More particularly, the present invention relates to a method for transceiving data, and to a base station device for the method, wherein the method comprises the steps of: transmitting, in a single first subframe, a physical downlink control channel (PDCCH) including downlink scheduling information on each terminal; and transmitting, in a plurality of second subframes, a physical downlink shared channel (PDSCH) relevant to said PDCCH to each terminal. The PDCCH supports a carrier aggregation that includes a field indicating said plurality of second subframes in which said PDSCH is transmitted.
Abstract:
Disclosed are a method for transmitting and receiving control information in a wireless communication system, and an apparatus for same. A method for transmitting control information by a base station in a wireless communication system according to the present invention comprises the steps of: performing a precoding process by applying different precoding matrix indices to control information for each terminal among predetermined precoding matrices; and transmitting, to each terminal, the precoded control information to which different precoding matrix indices are applied for each terminal, wherein said control information is multiplexed and transmitted via a plurality of antennas.
Abstract:
Disclosed are a method for transceiving reference signals in a wireless access system supporting carrier aggregation and a terminal therefor. Specifically, the method comprising the steps of: generating a beacon reference signal for estimating an uplink channel using an uplink reference signal; inserting the generated beacon reference signal into the last symbol of a subframe in an uplink frequency region; and transmitting the inserted beacon reference signal to a base station using a subframe that is equivalent to a demodulation reference signal.
Abstract:
The present invention provides a method and an apparatus for mitigating/eliminating interference between adjacent cells by configuring a subframe subset, in which the uplink transmission/reception of a specific cell is limited. According to the present invention, the interference by the uplink of the specific cell on the downlink of a different cell and/or the interference by the downlink of the different cell on the uplink of the specific cell can be mitigated/eliminated in the subframe in which the transmission/reception of the uplink of the specific cell is limited.
Abstract:
The present invention relates to a method for transceiving downlink control information in a wireless access system that supports an enhanced physical downlink control channel (e-PDCCH), and to an apparatus for the method. More particularly, the method comprises the steps of: precoding downlink control information using a precoding matrix set in a terminal; and transmitting the precoded downlink control information to the terminal via the e-PDCCH using multiple antennas, wherein the e-PDCCH is multiplexed with a PDSCH in a first slot of a subframe in which the downlink control information is transmitted.
Abstract:
A method and apparatus for transmitting control information in a wireless communication system which can support carrier aggregation (CA) are provided. In the method for transmitting control information from a terminal to at least one base station, the terminal receives at least one of a Physical Downlink Control Channel (PDCCH) and a Physical Downlink Shared Channel (PDSCH) from the at least one base station through at least one serving cell configured in the terminal and transmits control information associated with reception of the PDCCH or reception of a PDSCH indicated by the PDCCH to the at least one base station, wherein each of the at least one base station uses a different uplink and downlink configuration (UL-DL configuration) and a uplink-downlink (UL-DL) configuration used in the at least one serving cell can be changed based on a timing determined according to a preset condition.
Abstract:
The present invention relates to a method for transmitting channel quality control information using two transmission blocks in a wireless access system that supports hybrid automatic retransmit request (HARQ). The method for transmitting channel quality control information according to one embodiment of the present invention comprises: a step in which a terminal receives a physical downlink control channel (PDCCH) signal including downlink control information (DCI); a step of calculating, using the DCI, the number ( Q' ) of encoded symbols required for transmitting channel quality control information; and a step of transmitting the channel quality control information via the physical downlink control channel (PDCCH) based on the number of encoded symbols.
Abstract:
The present invention relates to a method for transmitting/receiving data in a Time Division Duplex (TDD) wireless access system supporting multiple cells, and a base station for same. In more detail, on the basis of a multi-cell TDD uplink-downlink configuration,the method includes confirming whether a collision subframe occurs, which is caused when an uplink subframe of a first cell and a downlink subframe of a second cell exist in the same time interval; and performing cross cell scheduling on the second cell through the first cell according to a TDD uplink-downlink configuration of the first cell. When data transmission is scheduled in the collision subframe by cross cell scheduling, by changing the transmission position of an uplink or a downlink according to the cross cell scheduling, the scheduled data are transmitted in the collision subframe.
Abstract:
Disclosed are a method and a base station for mitigating self-interference in which, in a resource region for transmitting a plurality of downlink control channels, an overlap region is configured, the overlap region being a resource region from which the effects of self-interference due to an uplink communication of a terminal must be removed, and the information regarding the overlap region is transmitted to a terminal connected to a base station and communicating via FDR.