Abstract:
An apparatus and a method for transmitting/receiving downlink data channel signal transmission information in a cellular radio communication system using a Cooperative Multi-Point (CoMP) scheme are provided. In the downlink data channel signal transmission information transmission method, a Base Station (BS) transmits downlink data channel signal transmission information including information related to Resource Elements (REs) scheduled for a downlink data channel signal transmission to a User Equipment (UE), and transmits downlink data channel signal non-transmission information including information related to REs through which a downlink data channel signal is not transmitted among the REs scheduled for the downlink data channel signal transmission to the UE.
Abstract:
A signal processing device of a base station being connected to one or more wireless devices of the base station is provided. The signal processing device includes a memory and a processor configured to transmit wireless device setting information to the one or more wireless devices via a front-haul interface during a predetermined time frame, transmit a downlink packet, which is obtained by packetizing downlink baseband data, to the one or more wireless devices via the front-haul interface, receive an uplink packet through the front-haul interface, obtain uplink baseband data and inherent control information by performing uplink packetization on the received uplink packet, and process the uplink baseband data based on analysis of the obtained inherent control information.
Abstract:
A method for a data signal on channels having spatial correlations by a Base Station (BS) is provided. The method includes estimating the spatial correlations of the channels, selecting a part of the channels based on a result of the estimation and transmitting a signal for channel estimation on the selected partial channels, and receiving channel estimation information estimated based on the signal from a User Equipment (UE) and generating a data signal to be transmitted to the UE on the channels using the channel estimation information.
Abstract:
A method and an apparatus are provided for transmitting and receiving control information in wireless communication system. A method includes transmitting, through Radio Resource Control (RRC) signaling, information representative of a set of resource blocks for transmitting the control information; generating the control information; and transmitting the control information based on at least one enhanced Control Channel Element (eCCE), at least one antenna port, and the set of resource blocks. The at least one antenna port is determined according to a starting index of the at least one eCCE and an IDentifier (ID) of the UE, when using localized eCCE allocation within the set of resource blocks.
Abstract:
A method and user equipment for transmitting rank indicator (RI) are provided. The method includes identifying a first channel state information (CSI) configuration with a first channel measurement information and a first interference measurement information; identifying a second CSI configuration with a second channel measurement information and a second interference measurement information, wherein the first CSI information is configured as a reference CSI configuration for the second CSI configuration; transmitting a RI for the first CSI configuration; and transmitting a RI for the second CSI configuration, wherein the RI for the second CSI configuration is same as the RI for the first CSI configuration.
Abstract:
An apparatus and a method for feeding a channel back in a wireless communication system using multiple input multiple output antennas (MIMO) are provided. The method includes receiving a signal from a transmitter and configuring a channel matrix for the received signal, configuring a basis transformed sparse channel using a sparsifying basis function with respect to the channel matrix, selecting a channel part to be fed back to the transmitter from the transformed sparse channel, and creating a codebook by quantizing the selected channel part, and feeding a codebook index corresponding to the created codebook back to the transmitter.
Abstract:
Disclosed is a method and device for transmitting a sounding reference signal (SRS) in a cooperative communication system. The method comprises the steps of: receiving, from a macro base station, SRS resource information indicating transmission resources of an SRS to be transmitted by a user equipment (UE); transmitting the SRS and uplink data on the basis of a UE-specific SRS subframe configuration included in the SRS resource information when the SRS resource information includes information on the UE-specific SRS subframe configuration; and transmitting the SRS and the uplink data on the basis of a pre-stored cell-specific SRS subframe configuration when the SRS resource information does not include the information on the UE-specific SRS subframe configuration. When a destination of the SRS to be transmitted by the UE is selected as a base station related to the macro base station, the SRS resource information includes information on the UE-specific SRS subframe configuration of the base station selected as the destination of the SRS.
Abstract:
The present disclosure relates to a method of providing a pre-5th-Generation (5G) or 5G communication system for supporting higher data rates Beyond 4th-Generation (4G) communication system, such as Long Term Evolution (LTE). The method includes receiving configuration information comprising at least one information element indicating transmission resources for the reference signals, receiving downlink control information indicating that a transmission of at least one of the reference signals is activated, and receiving the at least one of the reference signals based on the configuration information, in response to receiving the downlink control information.
Abstract:
A User Equipment (UE) in a wireless communication system using a Coordinated Multi-Point transmission/reception (CoMP) scheme receives Downlink Control Information (DCI) including CoMP control information, determines a starting position of a data channel on wireless resources, based on starting position information of a data channel included in the CoMP control information and used in each of a plurality of cells, and receives data from the plurality of cells starting from the determined starting position.
Abstract:
The present disclosure relates to a 5G or pre-5G communication system for supporting a higher data transmission rate beyond a 4G communication system such as LTE. To this end, a base station using a large-scale antenna transmits, to a terminal, reference signal resource configuration information including multiple pieces of reference signal configuration information and reference signal port information, for transmission of a reference signal, and transmits the reference signal to the terminal using some or all of channel measurement resources indicated by the multiple pieces of reference signal configuration information and the reference signal port information included in the reference signal resource configuration information. In this case, the channel measurement resources may correspond to antenna ports, the number of which is indicated by a combination of the multiple pieces of reference signal configuration information and the reference signal port information.