Abstract:
A method by which a base station transmits a reference signal to a terminal in a wireless communication system is disclosed. Particularly, the method comprises the steps of determining a reference signal resource interval expressed as a unit of one or more resource blocks (RBs), setting reference signal resources for a downlink bandwidth defined by a plurality of RBs, according to the reference signal resource interval, and transmitting the reference signal to the terminal by using the set reference signal resources, wherein the reference signal resource interval is determined on the basis of the number of reference signal antenna ports for which quasi co-location (QCL) can be assumed.
Abstract:
In the present disclosure, disclosed are a method for transmitting and receiving data in a wireless communication system and an apparatus therefor. Particularly, a method by which a user equipment (UE) supported by a plurality of apparatuses comprising a first apparatus and a second apparatus transmits and receives data in a wireless communication system comprises the steps of: receiving first control information from the first apparatus and receiving second control information from the second apparatus; receiving data from at least one of the first apparatus or the second apparatus; and transmitting, to at least one of the plurality of apparatuses, first feedback information regarding the first apparatus and second feedback information regarding the second apparatus, wherein the first control information and the second control information each comprises a downlink assignment index (DAI), and the DAI may be set on the basis of an index related to the plurality of apparatuses.
Abstract:
The present invention provides a method for transmitting or receiving data in a wireless communication system, and an apparatus therefor. Specifically, a method for receiving data by a user equipment (UE) in a wireless communication system may comprise the steps of: receiving control information related to a first codeword and a second codeword; and on the basis of the control information, receiving the first codeword and the second codeword via a physical layer, wherein it is recognized on the basis of a pre-defined rule that the first codeword and the second codeword correspond to the same transport block within a higher layer of the physical layer.
Abstract:
Disclosed are a method for transmitting and receiving a phase tracking reference signal (PTRS) in a wireless communication system, and an apparatus therefor. Specifically, a method for receiving the PTRS by a user equipment (UE) in a wireless communication system comprises receiving PTRS related configuration information; receiving downlink control information (DCI), wherein a code point corresponding to one or more transmission configuration indication (TCI) states is indicated on the basis of an antenna port field of the DCI; and receiving the PTRS through an antenna port corresponding to a specific DMRS port among the DMRS ports, wherein a number of antenna ports for receiving the PTRS may be determined on the basis of at least one of the maximum values of the number of TCI states corresponding to the code point, the number of CDM groups containing the DMRS port, or the number of antenna ports for receiving the PTRS.
Abstract:
A method by which a terminal transmits an SRS can comprise the steps of: receiving, from a base station, first information indicating symbols to which the SRS is transmitted among a plurality of symbols, when the terminal is configured to perform antenna switching for an SRS transmission on the plurality of symbols; and transmitting the SRS on the indicated symbols, wherein the SRS is transmitted through antenna ports respectively corresponding to the indicated symbols, and the antenna ports respectively corresponding to the indicated symbols can be different from each other.
Abstract:
The present invention relates to a method and device for operating a terminal in a wireless communication system. According to the present invention, downlink control information is transmitted to a terminal and can include symbol information related to the last symbol of a downlink shared channel. A method and device can be provided wherein a terminal transmits a first demodulation reference signal (DMSR) and at least one second DMRS for demodulating downlink data, and transmits data through the downlink shared channel, and a symbol position to which the at least one second DMRS is mapped is determined according to the symbol information.
Abstract:
Disclosed are: a method for operating a terminal and a base station in a wireless communication system; and a device supporting same. According to an embodiment applicable to the present disclosure, a terminal may: acquire resource information for setting a transmission mode, in which data generated from the same information is transmitted through a plurality of physical downlink shared channels (PDSCHs) by a base station, and on this basis, transmitting the data through the plurality of PDSCHs; and acquire related data information.
Abstract:
Disclosed are: a method for transmitting, by a user equipment, beam information of at least one cell among a plurality of cells configured for the user equipment in a wireless communication system comprising the user equipment and a base station including multiple cells; and a user equipment and a base station supporting same. According to an embodiment applicable to the present disclosure, a user equipment can report, to a base station, whether a beam failure for a specific cell occurs and whether a beam having at least a predetermined level of quality exists on the specific cell, and in response thereto, the base station can more efficiently perform beam management on the basis of the report.
Abstract:
A method for receiving a physical downlink shared channel (PDSCH) by a user equipment (UE) in a wireless communication system and device therefor is disclosed in the present disclosure. Particularly, a method for receiving a physical downlink shared channel (PDSCH) by a user equipment (UE) in a wireless communication system, the method according to an embodiment of the present disclosure comprising: receiving downlink control information (DCI); wherein the DCI includes i) a transmission configuration indication (TCI) field and ii) an antenna port field; and receiving the PDSCH scheduled based on the DCI, wherein a plurality of TCI states are indicated based on the TCI field, and demodulation reference signal (DM-RS) ports of a plurality of code division multiplexing (CDM) groups are indicated based on the antenna port field, and wherein a first TCI state among the plurality of TCI states corresponds to a CDM group including a first DM-RS port based on an instruction order of the DM-RS ports.
Abstract:
The present invention provides a method for receiving, by a terminal, a downlink phase tracking reference signal from a base station in a wireless communication system, and a device for supporting the same. According to an embodiment applicable to the present invention, a terminal may receive, from a base station, a phase tracking reference signal on the basis of the number of phase tracking reference signal ports, which is determined on the basis of different methods, according to whether transmission configuration indication (TCI) state-related information exists in received downlink control information. Further, the base station may transmit the phase tracking reference signal to the terminal accordingly.