Abstract:
A method and apparatus for transmitting and receiving a signal using a channel output feedback in a wireless communication system and Hybrid-Automatic Repeat Request (ARQ) are provided. The method and apparatus include a transmitter configured to transmit to a base station and a first packet on a precoder received from the base station. A receiver configured to receive, from the base station, a Channel Output Feedback (COF) of the transmitted first packet and information for transmitting a second packet. A controller configured to prepare a variant of the second packet using the COF and the received information for transmitting the second packet, and to control to transmit the prepared variant to the base station.
Abstract:
The present disclosure relates to a 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system such as long term evolution (LTE). A method for efficiently selecting an optimal beam based on channel state information (CSI) in a 5G or 6G communication system is provided. A method performed by a user equipment (UE) in a wireless communication system is provided. The method includes receiving a message including configuration information for a CSI report from a base station, receiving a plurality of CSI-reference signals (RSs) on different beams from the base station, generating a precoding matrix for the plurality of CSI-RSs, based on the configuration information, and transmitting the CSI report calculated based on the precoding matrix to the base station.
Abstract:
The present disclosure relates to a 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system such as long term evolution (LTE). A method performed by a user equipment (UE) in a 5G or 6G communication system is provided. The method includes receiving a message including configuration information for a conditional channel state information (CSI) report from a base station, receiving multiple CSI-reference signals (RSs) on different beams from the base station, selecting at least one CSI-RS satisfying at least one of a first condition or a second condition from the multiple CSI-RSs, based on the configuration information, and transmitting the conditional CSI report including information on the at least one CSI-RS to the base station.
Abstract:
The present disclosure relates to a 5G or 6G communication system for supporting a data transmission rate higher than that of a 4G communication system, such as LTE. A transmission or reception method of a terminal in a wireless communication system may comprise the steps of receiving a synchronization signal block (SSB) from a base station on the basis of blind detection, on the basis of the received SSB, identifying information on an SSB group to which the SSB belongs, wherein the SSB group is related to a first frequency domain, on the basis of the information on the SSB group, identifying a second frequency domain corresponding to at least one other SSB group, and receiving at least one SSB belonging to the at least one other SSB group from the base station on the basis of the second frequency domain.
Abstract:
Disclosed is a 5th generation (5G) or 6th generation (6G) communication system for supporting higher data rates after a 4th generation (4G) communication systems such as long term evolution (LTE). An operating method of a base station includes receiving, from a user equipment (UE), information about channel state information (CSI) measured based on a first CSI-reference signal (RS), determining, based on the information about the CSI, one autoencoder (AE), from among a plurality of AEs, transmitting, to the UE, information indicating an encoder included in the determined AE, transmitting a second CSI-RS to the UE, receiving, from the UE, CSI compressed based on CSI measured using the second CSI-RS and the indicated encoder, and performing reconstruction based on the compressed CSI and a decoder included in the determined AE.
Abstract:
The disclosure relates to a 5G or 6G communication system for supporting a higher data transfer rate beyond a 4G communication system, such as LTE. A method by a base station in a communication system according to an embodiment may include: determining the number of DFT-precoding chunks on which DFT precoding is performed; determining a power backoff value of a power amplifier (PA) of the base station; transmitting information indicating the number of DFT-precoding chunks to a terminal; transmitting downlink control information (DCI) including a resource allocation field, configured based on the number of DFT-precoding chunks, to the terminal; and transmitting data to the terminal according to the resource allocation field included in the DCI.
Abstract:
Methods and apparatuses for signal transmission and reception are provided for a wireless communication system. A message including resource configuration information for a physical uplink control channel (PUCCH) is transmitted to a terminal on higher layer signaling. The resource configuration information includes information on physical resource blocks (PRBs). Downlink control information (DCI) is transmitted to the terminal on a physical downlink control channel (PDCCH). The DCI includes a resource indicator for explicitly indicating the resource configuration information. Uplink control information (UCI) is received from the terminal on the PUCCH based on the PRBs associated with the resource configuration information indicated by the resource indicator.
Abstract:
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method, performed by a base station, includes identifying configuration information for single carrier signal transmission, transmitting the single carrier signal transmission configuration information to a terminal, transmitting control information scheduling data transmission, and transmitting data to the terminal using a single carrier according to the single carrier signal transmission configuration information and the control information. The single carrier signal transmission configuration information comprises at least one of offset or comb information indicating a resource to which the terminal can be scheduled, frequency resource information of a bandwidth part, or sub-carrier spacing information.
Abstract:
Apparatuses (including base stations and terminals), systems, and methods for supporting both wideband and narrowband communications are described. In one aspect, a base station supporting first type terminals operating on a first bandwidth and second type terminals operating on a second bandwidth is described, having an information formatter, a transceiver, and a controller. The information formatter generates a Low-end Master Information Block (L-MIB) and a Low-end System Information Block (L-SIB), which are transmitted by the transceiver to first type and second type terminals. The L-MIB includes control information on an L-subframe configuration for supporting a second type terminal and a sub-band configuration of the L-subframe, while the L-SIB includes information on downlink reception and uplink transmission of the second type terminal. When the base station receives a Random Access Channel (RACH) preamble request from one of the terminals, the base station performs the random access procedure.
Abstract:
Methods and apparatuses for signal transmission and reception are provided for a wireless communication system. A message is transmitted to a terminal that includes information on a number of symbols for a physical downlink control channel (PDCCH) on a higher layer signaling. The PDCCH is transmitted to the terminal in a slot, based on the information. Data is transmitted to the terminal in a slot based on the PDCCH. The slot for a transmission of the data is transmitted is identified based on the PDCCH