Abstract:
An uplink control method includes reporting information on user equipment (UE) transmit power for a first RAT and a second RAT upon transmission of uplink data to an entity of the first RAT, receiving a message including information for deactivating an uplink of one of the first and the second RATs from the entity of the first RAT, when a sum of the UE transmit powers of the uplink data for the first RAT and the second RAT exceeds first maximum transmit power, and selectively deactivating the uplink of the one of the first and the second RATs based on the message from an entity of the first RAT.
Abstract:
A method for a terminal in a first communication system to transmit a power headroom report in a network supporting interworking of a plurality of communication systems comprises a step for transmitting a power headroom report comprising a power headroom value related to a second communication system, when a predetermined triggering condition occurs in a state in which the terminal is accessing the first and second communication systems simultaneously, wherein the power headroom report can comprise information regarding maximum transmission power for the second communication system.
Abstract:
A base station of the present invention configures resources in which a downlink signal is to be transmitted with zero power using resource sets defined for a specific number of antenna ports, regardless of the number of antenna ports actually configured in the base station, and transmits resource information indicating the configured resources to a user equipment. The user equipment of the present invention receives a downlink transmission from the base station, assuming that transmission power of resources corresponding to a resource set indicated by the resource information is zero.
Abstract:
Disclosed are a transmission method and a base station comprising: user equipment confirming a handover to be performed; transmitting to a macro cell a data forwarding request message for requesting forwarding of downlink data of a small cell to the user equipment, when the user equipment can establish an X2 or S1 interface with the macro cell to perform the handover; receiving from the macro cell a data forwarding response message for indicating establishment of a wireless bearer with the macro cell; and transmitting the downlink data to the macro cell through the established wireless bearer, based on the data forwarding response message.
Abstract:
Disclosed are a macro cell base station and a method for managing a connection with a small cell by: receiving a first measurement report message of the small cell from user equipment and deciding an activation of the connection with the small cell based on same; transmitting to the small cell a message indicating the activation of a connection with the user equipment, when the small cell has a different cell ID from a cell ID of the macro cell; receiving from the small cell a message for indicating scheduling for the user equipment; and indicating to the user equipment the connection with the small cell.
Abstract:
A method for data transmission on control channels from a Base Station (BS) to a User Equipment (UE) in a wireless communication system is disclosed. The method includes multiplexing a common control channel and a UE-specific control channel for the UE using at least one of time division multiplexing and frequency division multiplexing; and performing data transmission on the multiplexed common control channel and the UE-specific control channel to the UE. The UE-specific control channel is multiplexed with one or more UE-specific control channels for other UEs using at least one of time division multiplexing, frequency division multiplexing, spatial multiplexing, and code division multiplexing.
Abstract:
A method for transmitting channel state information by a terminal comprises the step of: receiving relation information on a CSI-RS and a physical antenna from a base station by the terminal, the relation information including information on a first CSI-RS and a first physical antenna transmitting the first CSI-RS and information on a second CSI-RS and a second physical antenna transmitting the second CSI-RS; and transmitting first channel state information and second channel state information to the base station on the basis of the relation information by the terminal
Abstract:
A device-to-device (D2D) terminal for communicating in a wireless communication system supporting D2D communication includes: a receiver configured to receive information for setting the D2D searching interval corresponding to a D2D service type or a D2D application type from a base station; and a processor configured to search an neighbor D2D terminal in a D2D searching interval corresponding to a first D2D service type or a first D2D application type to be executed based on the information for setting the D2D searching interval, to select any one D2D terminal from among the one or more searched neighbor D2D terminals in order to set a connection corresponding to the first D2D service type or the first D2D application type, and to control the D2D communication corresponding to the first D2D service type or the first D2D application type with the selected D2D terminal according to the connection.
Abstract:
A method for transmitting a reference signal for supporting a plurality of antennas to a User Equipment (UE) at a Base Station (BS) in a wireless communication system is disclosed. The method includes grouping the plurality of antennas into antenna groups comprising a predetermined number of antenna ports, transmitting resource information about a reference signal for at least one antenna group of the antenna groups, and transmitting the reference signal for the at least one antenna group to the UE based on the resource information.
Abstract:
A method for transmitting signals to a user equipment at a base station in a wireless communication system is disclosed. The method includes generating a user equipment specific reference signal sequence for the user equipment, determining transmission resources for mapping the user equipment specific reference signal sequence, based on a vertical sector in which the user equipment is located, mapping the user equipment specific reference signal sequence to the determined transmission resources, and transmitting the user equipment specific reference signal sequence to the user equipment using a second-dimensional planar antenna.