Abstract:
A method and an apparatus for transmitting uplink/downlink data on Time Division Duplexing (TDD) carriers are provided. The method includes transmitting to a base station in a Primary Cell (PCell) and a Secondary Cell (SCell), a TDD Uplink-Downlink (UL-DL) configuration of the PCell having a DL subframe super-set or UL subset that are common in the SCell and the PCell and a TDD UL-DL configuration differing from each other, receiving data at a first subframe in the SCell, and transmitting, when a UL subframe set of the SCell is a subset of a UL subframe of the PCell, a feedback corresponding to the data at a subframe predefined in association with the first subframe in the PCell according to the TDD UL-DL configuration of the SCell. The method supports both the self-scheduling and cross-carrier scheduling of the UE using carriers of different TDD configurations.
Abstract:
A method and apparatus for providing a data service by using a broadcasting signal are provided. To transmit the broadcasting signal by an Access Point (AP) located within a coverage area of a base station (eNB), the AP transmits configuration information, used for transmission of the broadcasting signal on the same frequency band as that of the eNB, to the eNB, receives broadcasting signal transmission information, based on the configuration information, from the eNB, and transmits the broadcasting signal according to the broadcasting signal transmission information.
Abstract:
A downlink power control method and apparatus for improving downlink power efficiency gain in an Orthogonal Frequency Division Multiplexing (OFDM) system is provided. The downlink power control method includes transmitting a downlink data channel at a normal subframe according to first downlink power information for the normal subframe, and transmitting the downlink data channel at an Almost Blank Subframe (ABS) according to second downlink power information for the ABS, wherein the first downlink power information for the normal subframe and the second downlink power information for the ABS differ from each other. The downlink power control method and apparatus is capable of regulating inter-cell interference variation between contiguous symbols at a predetermined level in a subframe at a terminal of a neighbor cell and making it possible to schedule the UE receiving the low power data channel using the power ratio of the feedbacks from the UE.
Abstract:
Methods and apparatus are provided for transmitting and receiving a control signal. Indices of Resource Block (RB) sets are transmitted through higher layer signaling. Downlink Control Information (DCI) generated in a short DCI format is transmitted from a Base Station (BS) to a terminal. The DCI includes a first index indicating an RB set having at least one allocated RB and a second index indicating the at least one allocated RB. The terminal determines whether short DCI format is configured to be used. When the short DCI format is configured to be used, the first index and second index are received. The terminal communicates through the at least one allocated RB identified by the first and second indices.
Abstract:
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. An embodiment of the disclosure may include: receiving, from a base station, configuration information on a channel state information (CSI)-reference signal (RS) resource set with more than 32 antenna ports, wherein the CSI-RS resource set includes an aggregation of a plurality of CSI-RS resources as an associated CSI-RS; receiving, from the base station, downlink control channel (DCI) requesting a sounding reference signal (SRS); receiving, from the base station, the associated CSI-RS; transmitting, to the base station, the SRS based on the DCI; and transmitting, to the base station, a non-codebook based physical uplink shared channel (PUSCH) according to the SRS, wherein a number of the plurality of CSI-RS resources is one of 2, 3, or 4.
Abstract:
Provided is a method performed by a user equipment (UE) in a wireless communication system, including: receiving, from a base station, configuration information regarding a plurality of search spaces for a physical downlink control channel (PDCCH) repetition; monitoring a plurality of PDCCHs on at least one cell based on the configuration information; identifying a time at which a repetition of PDCCHs including a first downlink control information (DCI) format, from among the plurality of PDCCHs, ends; determining at least one power headroom report (PHR) for the plurality of PDCCHs, based on an actual transmission or a reference format configured from higher layer signaling according to the identified time; and transmitting the determined at least one PHR on a physical uplink shared channel (PUSCH) scheduled by the first DCI format.
Abstract:
A method performed by a user equipment (UE) in a wireless communication system. The method includes receiving, from a base station (BS), information associated with a downlink (DL) resource on a DL subband and information associated with an uplink (UL) resource on a UL subband, wherein the DL resource and the UL resource are on a same time resource; receiving, from the BS, time resource information for multiplexing uplink control information (UCI) on the UL resource; performing multiplexing of the UCI on the UL resource based on the time resource information; and transmitting, to the BS, an UL signal based on the UL resource multiplexed with the UCI.
Abstract:
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by a terminal in a wireless communication system includes receiving, from a base station, first configuration information on a sounding reference signal (SRS) resource, receiving, from the base station, second configuration information for a channel state information (CSI) report, transmitting, to the base station, an SRS for a first channel between a first transmission and reception point (TRP) and the terminal based on the first configuration information, and transmitting, to the base station, the CSI report including a measurement result of a second channel between a second TRP and the terminal based on the second configuration information.
Abstract:
The disclosure relates to a 5G or 6G communication system for supporting higher data transmission rates. The disclosure relates to the operation of a terminal and a base station in a wireless communication system. Specifically, the disclosure relates to a method for transmission and reception using spatial multiplexing in a wireless communication system and an apparatus capable of performing the same. The disclosure provides an apparatus and a method that can effectively provide services in a mobile communication system.
Abstract:
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by a user equipment (UE) in a communication system is provided. The method includes receiving, from a base station via higher layer signaling, one or more configurations, identifying a first CSI report for prediction and a second CSI report for monitoring based on the one or more configurations, and transmitting, to the base station, the first CSI report for prediction and the second CSI report for monitoring.