Abstract:
The present invention provides methods for relieving effective Doppler broadening in performing pin-point beamforming and provides apparatuses for supporting the methods, wherein the methods and the apparatuses are used in a wireless access system that supports a super high frequency band. The method for relieving Doppler broadening in a wireless access system that supports a super high frequency band according to one embodiment of the present invention may comprise the steps of: receiving a downlink signal at a receiving end; estimating a Doppler spectrum for the downlink signal received at the receiving end; and calculating a carrier wave shift value based on the Doppler spectrum estimated at the receiving end.
Abstract:
A method for transmitting a reference signal by a base station to a user equipment in a wireless communication system is disclosed. The method includes transmitting the reference signal to the user equipment according to a first pattern corresponding to a first speed section, and if movement speed of the user equipment is changed to a second speed section from the first speed section, transmitting the reference signal to the user equipment according to a second pattern corresponding to the second speed section, wherein, if the second speed section is a higher-speed section than the first speed section, the second pattern includes the first pattern.
Abstract:
In a method for a transmission point to transmit a downlink signal to a user equipment in a wireless communication system, the method includes determining transmission power of first resource elements for data transmission of an OFDM symbol which does not include a Cell specific Reference Signal (CRS) and transmission power of second resource elements for data transmission of an OFDM symbol which includes the CRS, wherein a first parameter related to the determination of the transmission power of the first resource elements and a second parameter related to the determination of the transmission power of the second resource elements are determined by one of a first configuration and a second configuration, and wherein the first configuration and the second configuration are selectively applied according to one or more of a subframe and a transmission mode.
Abstract:
The present invention relates to a wireless communication system and more specifically relates to a method and device for transmitting information. A wireless communication system can support carrier aggregation (CA). In one aspect of the present invention, a method, in which a terminal receives information from a base station in a wireless communication, comprises the steps of: receiving, from the base station, first information on the transmission method of a first channel; receiving the receiving the first channel, from the base station, via at least one serving cell formed in the terminal; and carrying out decoding on the first channel in accordance with the first information. Therein, the first channel is an enhanced physical downlink control channel (ePDCCH), and the terminal is capable of not carrying out decoding on the first channel in a frequency region in a present subframe.
Abstract:
The method comprises: a step in which the base station transmits to a terminal configuration information related to the beam restricted sub-frame; and a step in which the base station transmits downlink data to the terminal via a sub-frame. The sub-frame includes the beam restricted sub-frame and a normal sub-frame, setting information includes information indicating a sub-frame set as the beam restricted sub-frame among multiple sub-frames, the beam restricted sub-frame is a sub-frame transmitted only based on a first beam subset, the normal sub-frame is a sub-frame transmitted based on the first beam subset and a second beam subset, the first beam subset is the set of beams generated based on a first precoding matrix set, and the second beam subset is the set of beams generated based on a second precoding matrix set including the first precoding matrix set.
Abstract:
The present invention relates to a method for transceiving a signal in a wireless communication system. A method for transceiving a signal in a wireless communication system according to one embodiment of the present invention comprises the steps of: transmitting a downlink signal from a base station to a terminal; receiving an uplink signal transmitted from the terminal; and cancelling a self-interference signal on the basis of the transceived downlink signal or the uplink signal, wherein the transmission periods for the downlink signal and the uplink signal comprise dedicated transmission periods, and in the dedicated transmission period, signal transmission periods of the base station and the terminal are differentiated.
Abstract:
A method for measuring inter-device interference (IDI) by a terminal in a wireless communication system supporting full-duplex communication according to an embodiment of the present invention comprises the steps of: determining the total number of times of IDI measurement required for a terminal group to which the terminal belongs; determining a basic sub-frame configuration pattern on the basis of the determined total number of times of the IDI measurement; and measuring the IDI as many times as the number of times allocated to the terminal by applying a terminal-specific shift value to the basic sub-frame configuration pattern,
Abstract:
An embodiment of the present invention relates to a method in which a base station transmits a signal in a wireless communication system, comprising: a step of generating a reception acknowledgement response to the uplink data received from a terminal; and a step of mapping the reception acknowledgement response to a downlink time-frequency resource and transmitting the mapped result. The downlink time-frequency resource is located on a resource region excluding the control region indicated by a physical control format indicator channel, and associated with the index of the resource block with which the uplink data is transmitted.
Abstract:
Disclosed is a method for performing, by a wireless device, synchronization with a base station in a wireless communication system. A method for synchronizing a wireless device according to one embodiment of the present invention comprises the steps of: receiving a primary synchronization signal and an auxiliary synchronization signal through a first subframe from a first base station; and performing synchronization with the first base station using the primary synchronization signal and the auxiliary synchronization signal, wherein the synchronization with the first base station is performed depending on whether a moving cell synchronization signal exists on the first subframe.
Abstract:
A method for transmitting/receiving data in a wireless access system, and a base station (BS) and a user equipment (UE) for the same are disclosed. The method for performing synchronization with a neighbor base station (BS) of a user equipment (UE) in a wireless access system includes, if a user equipment (UE) based on a macro BS is located at a boundary of the neighbor BS, measuring a synchronization channel of the neighbor BS, wherein a subframe of the neighbor BS includes an additional secondary synchronization signal (SSS) so as to perform synchronization with the neighbor BS.