Abstract:
The present application relates to a method for transmitting response information on downlink data through multiple information blocks to be bundled in a wireless system in a time division duplex (TDD) mode. The method for transmitting response information according to the present invention comprises the following steps: coding response information on the downlink data; scrambling the coded response information; and transmitting the scrambled response information to a base station, wherein, if a portion of the bits of the coded response information are information bits that indicate A/N on the downlink data, the scrambling step involves scrambling the coded response information using a specific scrambling sequence, and the specific scrambling sequence includes information on the number of information blocks to be bundled.
Abstract:
According to the present invention, a predetermined number of consecutive modulation symbols of a modulation symbol sequence corresponding to uplink control information are mapped to antenna ports, and frequency resources which are orthogonal to each other are mapped to antenna ports which are different from each other. According to the present invention, transmission diversity gains may be obtained during a transmission of a large amount of uplink control information.
Abstract:
A method for generating a sequence in a wireless communication system includes generating a bit sequence from combined bits of reception acknowledgements for eacho of a first transport block and a second transport block according to a predetermined coding rate, mapping the bit sequence to modulation symbols to generate a block of modulation symbols, and generating a sequence of modulation symbols by applying an orthogonal sequence repeated n times to the block of modulation symbols.
Abstract:
A method for, at an eNB, transmitting control information to a UE in a wireless communication system includes precoding a codeword including downlink control information using one of precoding matrices included in a candidate precoding matrix set of a codebook, wherein the precoding matrices included in the candidate precoding matrix set are used by the UE for attempting to de-precode for the downlink control information.
Abstract:
The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting uplink control information, and to an apparatus for the method, wherein the method comprises the steps of: generating a plurality of HARQ-ACKs; selecting, from among a plurality of resource indices, one first resource index, and two second resource indices, each corresponding to the plurality of HARQ-ACKs; transmitting, through a first antenna port, a first modulation symbol corresponding to the plurality of HARQ-ACKs and a first reference signal for demodulating the first modulation symbol; and transmitting, through a second antenna port, a second modulation symbol corresponding to the plurality of HARQ-ACKs and a second reference signal for demodulating the second modulation symbol. Both a transmission resource for the first modulation symbol and a transmission resource for the first reference signal are given using said one first resource index. A transmission resource for the second modulation symbol is given using one of said two second resource indices, and a transmission resource for the second reference signal is given using the other of said two second resource indices.
Abstract:
A method and apparatus for transmitting control information in a wireless communication system supporting carrier aggregation (CA) is disclosed. A method for transmitting control information to a base station (BS) by a user equipment (UE) in a wireless communication system includes receiving at least one of a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH) from the base station through at least one serving cell configured in the user equipment, and transmitting control information regarding PDCCH reception or PDSCH reception indicated by the PDCCH to the base station. The control information is transmitted through a physical uplink control channel (PUCCH) of a primary cell, using control information feedback timing of at least one of the primary cell and a first cell of the at least one serving cell, and the at least one serving cell uses different uplink and downlink (UL-DL) configurations.
Abstract:
A method for mitigating interference in a wireless communication system includes a first transmission point determining the number of subframes that need to be shifted at a second transmission point using information from the second transmission point for an ABSconfiguration, wherein the the ABS configuration is for a UE belonging to a third transmission point.
Abstract:
A method for mapping a sequence in a wireless communication system includes determining one or more resource blocks to which the sequence will be mapped, and mapping a plurality of modulation symbols to a plurality of resource elements included in the resource blocks, wherein the resource elements are positioned in regions other than OFDM symbol regions indicated by a physical control format indicator channel (PCHICH).
Abstract:
The present invention relates to a wireless communication system. In particular, the present invention relates to a method and an apparatus for transmitting uplink control information, including the steps of: generating a plurality of HARQ-ACKs(Hybrid ARQ Acknowledgements), selecting one or more PUCCH(Physical Uplink Control Channel) resource indices corresponding to the plurality of HARQ-ACKs from a plurality of PUCCH resource indices, and transmitting one or more modulation symbols corresponding to the plurality of HARQ-ACKs using resources corresponding to the one or more PUCCH resource indices, in which, when a number of the plurality of HARQ-ACKs is two, the one or more modulation symbols are transmitted only in a first multiple antenna transmission manner, and when a number of the plurality of HARQ-ACKs is three or more, the one or more modulation symbols are transmitted in any one of a plurality of second multiple antenna transmission manners.
Abstract:
In the present invention, a method for transmitting/receiving data in a wireless access system and a base station for same are disclosed. More particularly, the method comprises the following steps: setting a cell group per at least one cell having an identical uplink-downlink configuration, if a plurality of cells are set to a user equipment; performing via a first cell cross-cell scheduling with regard to a second cell, which belongs to a cell group that is different from that including the first cell, according to the uplink-downlink configuration of the first cell; confirming the occurrence of a collision subframe, in which an uplink subframe and a downlink subframe exist simultaneously in the same time interval, in two cells performing the cross-cell scheduling; and transmitting/receiving data with the user equipment when scheduled in the collision subframe due to the cross-cell scheduling, by modifying a transmission position of the uplink or the downlink according to the cross-cell scheduling.