Abstract:
In 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 of a first terminal in a wireless communication system is disclosed and may include performing channel measurement, based on one or more first reference signals received from a base station; identifying channel distribution information between the first terminal and the base station, based on the measured channel; selecting one or more representative channel vectors (RCVs), based on the identified channel distribution information; generating one or more constellations corresponding to the selected one or more RCVs; transmitting constellation set information including the generated one or more constellations to the base station; and performing communication with the base station, based on the generated one or more constellations.
Abstract:
According to various embodiments, an electronic device may include: at least one antenna module including at least one antenna, and a processor configured to: control the electronic device to receive, through the at least one antenna module, a reference signal (RS) corresponding to each of frequency bands of multiple component carriers (CC) configured for carrier aggregation (CA), identify a reception signal strength of the reference signal corresponding to each of the frequency bands with regard to the multiple CCs, identify at least two CCs operating in the CA among the multiple CCs, based on reception signal strengths of multiple reference signals corresponding to the multiple CCs, and determine at least one reception beam corresponding to the at least one antenna module based on reception signal strengths of at least two reference signals corresponding to the at least two identified CCs.
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. According to an embodiment of the present invention, a method for controlling a base station supporting a multi-antenna system may comprise the steps of: generating a plurality of test signals for a plurality of antennas in a modem; controlling the plurality of generated test signals to be fed back to the modem through a plurality of feedback paths which are formed for the plurality of antennas, respectively, and do not affect each other; and identifying the plurality of test signals fed back to the modem, on the basis of the plurality of generated test signals.
Abstract:
A method and apparatus for feedback in a mobile communication system are provided. The method of feedback transmission for a user equipment (UE) in a wireless communication system includes receiving control information indicating whether a subframe of an uplink band is allocated for a downlink from a base station (BS), receiving data from the BS in at least three subframes according to the control information, and sending the BS feedback for the data received in the at least three subframes using transmission time interval (TTI) bundling.
Abstract:
A method performed by an electronic device in a wireless communication system is provided. The method comprises obtaining a power reduction amount based on first target power and first transmission power of the first signal, while transmitting, through at least one antenna, a first signal supporting a first network and a second signal supporting a second network distinguished from the first network. The method comprises comparing the obtained power reduction amount with a first reference value and a second reference value less than the first reference value. The method comprises transmitting one of the first signal or the second signal through the at least one antenna by controlling a wireless communication circuit, based on the comparison result, when the power reduction amount is greater than the first reference value.
Abstract:
An electronic device is provided. The electronic device includes a first communication circuit for first wireless communication, a second communication circuit for second wireless communication, one or more processors, and memory storing one or more programs including instructions that, when executed by the one or more processors, cause the electronic device to identify a state of the electronic device while an operation mode for the first wireless communication is a radio resource control (RRC) idle mode, when the state of the electronic device corresponds to a specified state, measure at least one signal transmitted from a first base station for the second wireless communication, switch the operation mode from the RRC idle mode to an RRC connection mode after measuring the signal, and cause a second station for the first wireless communication to transmit a signal for requesting connection during a state in which the operation mode is in the RRC connection mode.
Abstract:
An example electronic device may include multiple antennas and at least one processor, wherein the at least one processor is configured to: identify a sounding reference signal (SRS) configuration received from a network; identify a physical downlink shared channel (PDSCH) scheduling rate corresponding to the electronic device; transmit, based on the PDSCH scheduling rate not being included in a first range, at least one SRS at the magnitude of first transmission power through each of at least some of the multiple antennas, in each of one or more resource for SRS signal transmission identified on the basis of the SRS configuration; and refrain from transmitting the at least one SRS in the one or more resources based on the PDSCH scheduling rate being included in the first range, or transmit the at least one SRS at the magnitude of second transmission power, which is different from the magnitude of the first transmission power, through each of at least some of the multiple antennas, in the each of the one or more resources.