Abstract:
The present invention relates to a wireless communication system. More particularly, the present invention relates to a method in which a terminal transmits control information in a CA-based wireless communication system and to an apparatus for the method, the method comprising: a step of configuring a first cell and a second cell having different subframe configurations, the second cell has UL-DL configuration #0; a step of receiving a downlink control information (DCI) format including an N-bit field (N>1), for the second cell; and a step of transmitting a physical uplink shared channel (PUSCH) signal corresponding to the downlink DCI format through a subframe. The N-bit field indicates either an uplink (UL) index or a downlink assignment index (DAI). For PUSCH timing, in cases where a reference UL-DL configuration applied to the second cell is any one of UL-DL configurations #1 to #6, the N-bit field indicates the DAI.
Abstract:
The present invention relates to a wireless communication system. Specifically, the present invention relates to a method for transmitting uplink control information and an apparatus therefore, which includes the steps of selecting one uplink control channel resource corresponding to a plurality of HARQ-ACKs from a plurality of uplink control channel resources, and transmitting bit values corresponding to the plurality of HARQ-ACKs using the selected uplink control channel resource.
Abstract:
The present invention relates to a wireless communication system. Specifically, a method for transmitting an uplink signal in a wireless communication system supporting carrier aggregation includes the steps of: setting a first cell of a first time division duplex (TDD) uplink (UL)-downlink (DL) configuration, and a second cell of a second TDD UL-DL configuration; receiving data over a DL subframe of the first cell; and transmitting a control signal over a UL subframe of the second cell in response to the received data, wherein a relationship of the DL subframe and UL subframe is determined by parameter values set in a specific TDD UL-DL configuration in a TDD WL-DL configuration set, the specific TDD UL-DL configuration has the minimum number of DL subframes from among one or more of TDD UL-DL configurations in which subframes set as a DL or X are all set as the DL in the first cell or the second cell, the subframes set as X have different subframe directions in the first cell and the second cell at a corresponding subframe timing, and the uses thereof are limited in either the first cell or the second cell.
Abstract:
The present invention relates to a wireless communication system and, more particularly, to a method and apparatus therefor, the method comprising the steps of: receiving scheduling information including a DAI value and a 1-bit indicator, the DAI value indicating a modulo value for a scheduling order; receiving data on the basis of the scheduling information; and transmitting A/N feedback including A/N information about the data, wherein a position of the A/N information in the A/N feedback is determined based on (1) the DAI value and (2) a bit value of the 1-bit indicator or on whether the 1-bit indicator is toggled.
Abstract:
A method and a device for transmitting/receiving a signal in a wireless communication system, according to one embodiment of the present invention, perform a two-step or four-step random access procedure, and monitor a PDCCH according to a DRX configuration, wherein the PRACH transmitted in the random access procedure is transmitted on a specific RO from among a plurality of ROs, and a starting RB index of the specific RO can be determined on the basis of (i) the lowest RB index of an RB set including the specific RO, (ii) the starting RB index of an RO positioned at the lowest frequency, and (iii) the lowest RB index of an RB set including the RO positioned at the lowest frequency.
Abstract:
Disclosed in the present application is a method for a terminal performing a random access procedure in a wireless communication system. Specifically, the method for performing a random access procedure comprises the steps of: transmitting, to a base station, a plurality of random access signals corresponding to a plurality of different beams in a transmission interval corresponding to the corresponding random access signal; receiving a random access response signal corresponding to one random access signal of the plurality of random access signals; and transmitting and receiving a signal to and/or from the base station, using a beam corresponding to the one random access signal, wherein the plurality of random access signals comprise identifier information of the terminal.
Abstract:
A transmission device may perform listen-before-talk (LBT) with regard to an unlicensed band. The transmission device may determine M LBT sub-bands which are in an idle state, on the basis of the performing of the LBT for the unlicensed band. The transmission device may perform N repetitive transmissions of a transport block (TB) over the M LBT sub-bands. The N repetitive transmissions of the TB may include performing M repetitive transmissions over the M LBT sub-bands, respectively.
Abstract:
A method of a user equipment (UE) in a wireless communication system includes receiving resource allocation information related to a configured grant (CG)-based uplink transmission, receiving configuration information indicating multiplexing between CG uplink control information (CG UCI) and hybrid automatic repeat request acknowledgement (HARQ-ACK) information, performing joint encoding of the CG UCI and the HARQ-ACK information based on the configuration information, and transmitting a CG physical uplink shared channel (CG PUSCH) based on the resource allocation information. The joint-encoded information is multiplexed in the CG PUSCH. A beta offset value corresponding to one of a first index, a second index, or a third index related to a beta offset for the HARQ-ACK information is applied to the joint encoding.
Abstract:
A method and a device for transmitting and receiving a signal in a wireless communication system, according to one embodiment of the present invention, comprise: receiving downlink control information (DCI) for scheduling a physical uplink shared channel (PUSCH); and transmitting the PUSCH on the basis of the DCI. The PUSCH is transmitted in a certain number of resource blocks (RB), and the certain number of RBs may be (i) at most the number of RBs allocated by the DCI, and (ii) the greatest number that is a multiple of 2, 3, and/or 5.
Abstract:
A method by which a terminal transmits a physical uplink control channel (PUCCH) in a wireless communication system according to one embodiment of the present specification comprises the steps of: receiving configuration information related to a PUCCH; and transmitting the PUCCH on the basis of the configuration information. The PUCCH is transmitted in a first PUCCH resource related to a scheduling request (SR), and the first PUCCH resource is based on a first PUCCH format. On the basis of the first PUCCH resource overlapping with a second PUCCH resource using a second PUCCH format for transmission of HARQ-ACK information, the PUCCH is transmitted in the second PUCCH resource through multiplexing based on the second PUCCH format.