Abstract:
A method for transmitting feedback information for fractional beamforming using a massive antenna array from a User Equipment (UE) to a Base Station (BS) in a wireless communication system is disclosed. The method includes receiving information about a plurality of Reference Signal (RS) resources from the BS; selecting at least one of a sub-precoder for at least one RS resources, and one linking precoder for linking the RS resources, based on a preset codebook; and reporting information about the selected precoder to the BS. The selected precoder is one precoding matrix of precoding matrices included in the codebook or a permuted form of the one precoding matrix, and the information about the selected precoder includes an index and permutation in formation of the one precoding matrix.
Abstract:
A method and apparatus for performing fractional beamforming using a massive antenna array at a Base Station (BS) in a wireless communication system are disclosed. The method includes dividing the massive antenna array into partitions by rows or by columns, transmitting control information for the fractional beamforming to a User Equipment (UE), receiving feedback information based on the control information from the UE, and transmitting a signal to the UE by performing beamforming using sub-precoders for the partitions and a linking precoder that links the partitions. The control information includes at least one of information about the partitions, information about pilot patterns corresponding to the partitions, information about the linking precoder, and information indicating whether the partitions belong to the same transmission point.
Abstract:
A communication apparatus in a multi-antenna wireless communication system is disclosed. In detail, the communication apparatus includes a first processor for processing a baseband signal defined as a first virtual antenna group, a second processor for mapping a signal defined as a second virtual antenna group and the baseband signal defined as the first virtual antenna group in order to remove coupling between antennas, and an antenna module for mapping the signal defined as the second virtual antenna group and a signal defined as a multiple physical antenna group.
Abstract:
The present specification provides a method for generating a low peak to average power ratio (PAPR) sequence in a wireless communication system. Specifically, the present specification relates to a method for generating a low PAPR sequence in a wireless communication system, the method comprising the steps of: generating a sequence of length-6 having a symbol as each element of the sequence; and generating the low PAPR sequence on the basis of the sequence of length-6.
Abstract:
A method by which a terminal receives data in a wireless communication system can comprise the steps of: receiving configuration information relating to a control resource of a physical control channel; allowing one or more control resources included in the configuration information to be respectively set to a first control resource group or a second control resource group, and receiving a first physical control channel and a second physical control channel on the basis of the configuration information; receiving a first physical data channel on the basis of the first control resource group related to a control resource in which the first physical control channel is received; and receiving a second physical data channel on the basis of the second control resource group related to a control resource in which the second physical control channel is received.
Abstract:
The present specification relates to a method for a base station transmitting/receiving data in a wireless communication system. More specifically, a terminal receives, from the base station, configuration information for configuring a control resource set (CORESET). Then, on the basis of the configuration information, the terminal receives first downlink control information (DCI) and second DCI for generating an ACK/NACK using a dynamic method. The terminal receives, on a resource scheduled by the first DCI, a first physical downlink shared channel (PDSCH) and a second PDSCH, and transmits a first Ack/Nack for the first PDSCH and an Ack/Nack for the second PDSCH.
Abstract:
The present disclosure provides a method for transmitting a demodulation reference signal. Specifically, the method performed by the terminal comprising: receiving, from a base station, a radio resource control (RRC) signaling including control information representing that transform precoding for an uplink is enabled; generating a low peak to average power ratio (PAPR) sequence based on a length-6 sequence; generating a sequence used for the demodulation reference signal based on the low PAPR sequence; and transmitting, to the base station, the demodulation reference signal based on the sequence used for the demodulation reference signal, wherein the length-6 sequence has an 8-Phase Shift Keying (PSK) symbol as each element of the sequence.
Abstract:
Disclosed herein is a method for transmitting a demodulation reference signal for an uplink control signal in a wireless communication system. Specifically, the method performed by a terminal includes: generating a low peak to average power ratio (PAPR) sequence based on a length-6 sequence; generating a sequence used for the demodulation reference signal based on the low PAPR sequence; and transmitting, to a base station, the demodulation reference signal based on the sequence used for the demodulation reference signal, in which the length-6 sequence has an 8-phase shift keying (PSK) symbol as each element of a sequence.
Abstract:
Disclosed herein is a method for transmitting a demodulation reference signal for an uplink control signal in a wireless communication system. Specifically, the method performed by a terminal includes: generating a low peak to average power ratio (PAPR) sequence based on a length-6 sequence; generating a sequence used for the demodulation reference signal based on the low PAPR sequence; and transmitting, to a base station, the demodulation reference signal based on the sequence used for the demodulation reference signal, in which the length-6 sequence has an 8-phase shift keying (PSK) symbol as each element of a sequence.
Abstract:
An operating method of a terminal and a base station in a wireless communication system, and a device for supporting same are disclosed. According to one embodiment applicable to the disclosure, a terminal, in which a discontinuous reception (DRX) mode is set, sets a transmission mode in which data generated from the same information by means of a base station is transmitted through physical downlink shared channels (PDSCHs), resource information by which data is transmitted through the plurality of PDSCHs is acquired, on the basis of the transmission mode, so that relevant data information is acquired.