Abstract:
One embodiment of the present invention relates to a method for mapping a discovery signal by a terminal in a wireless communication system, the method for mapping the discovery signal comprising the steps of: generating the discovery signal; mapping the discovery unit on at least a portion of a plurality of discovery signal resource blocks (RB), wherein when the number of terminals transreceiving the discovery signal including the terminal is less than or equal to a predetermined value, an absolute value of a frequency band of a discovery signal RB included in a positive frequency zone with respect to a direct current (DC) carrier, from among the plurality of discovery signal RBs, does not overlap with an absolute value of a frequency band corresponding to a discovery signal RB present in a negative frequency zone.
Abstract:
Embodiments of the present invention relate to a method for transmitting/receiving a signal related to a device-to-device (D2D) communication by a first user equipment in a wireless communication system. The method comprises the steps of: stopping uplink transmission in a first band for a predetermined time interval and searching for a signal transmitted by a second user equipment; and transmitting a report to a third user equipment when the signal transmitted by the second user equipment is found, wherein the report contains the existence of the second user equipment and information related to a band in which the signal from the second user equipment is received.
Abstract:
The method for receiving system information by a terminal in a wireless communication system according to one embodiment of the present invention comprises: a step of receiving a subframe; and a step of performing, for a physical broadcast channel (PBCH) in a predetermined resource region of the subframe, blind decoding based on a plurality of sequences to be masked to a CRC parity bit. If a cell-specific reference signal (CRS) does not exist in the subframe, each of the plurality of sequences indicates pieces of individual information contained in one or more of a reference signal type set, a demodulation reference signal (DMRS) antenna port information set and diversity scheme information set.
Abstract:
In an embodiment of the present invention, a method for transmitting a signal by a transmission point in a wireless communication system comprises the steps of generating complex modulation symbols for a terminal which is in a partially connected interference channel state; applying symbol extension to each of the complex modulation symbols, using a pre-coding matrix; and mapping the extended complex modulation symbols to resource elements, wherein the symbol extension is performed by multiplying an element of one column of the pre-coding matrix by each of the complex modulation symbols.
Abstract:
Provided are a method of transmitting, by a user equipment, a uplink signal in a wireless communication system. The method includes receiving control information related to a codeword cover used for a multiplexing of a multiple of user equipments from a base station, generating a transmission symbol of a specific length by repeating a data symbol in a specific time unit, generating the uplink signal by applying the codeword cover of the specific length to the generated transmission symbol, and transmitting the generated uplink signal to the base station through a single tone.
Abstract:
One embodiment of the present invention is a method in which a terminal transmits an acknowledgement of reception performed through an enhanced physical downlink control channel (EPDCCH) in a wireless communication system, the method comprising the steps of: decoding the EPDCCH in both a first EPDCCH physical resource block (PRB) set and a second EPDCCH PRB set; and transmitting an acknowledgement of reception performed through each EPDCCH. The resource indices for transmitting an acknowledgement of reception performed through each EPDCCH are determined in mutually different manner based on the type of the EPDCCH PRB set, whether or not the number of the PRB pairs contained in each EPDCCH PRB set corresponds to each other, and/or whether or not the EPDCCH PRB sets overlap.
Abstract:
A method for operating a terminal in a carrier aggregation system and a corresponding apparatus. In the method, downlink control information (DCI) including a downlink assignment index (DAI) can be received via an enhanced physical downlink control channel (E-PDCCH). The DCI received via the E-PDCCH includes an additional field which does not exist in the DCI received via a physical downlink control channel (PDCCH). If the DAI value is larger than 1, the additional field is used in selecting one of a plurality of PUCCH resources set by the upper layer, and the selected one resource is used in transmitting ACK/NACK.
Abstract:
A method and apparatus for indicating a resource pool for device-to-device (D2D) transmission in a wireless communication system is provided. A first evolved NodeB (eNB) transmits information on a resource pool of the first eNB for D2D transmission to a second eNB. The second eNB also transmit information on a resource pool of the second eNB for D2D transmission.
Abstract:
The method for transmitting an acknowledgement for enhanced physical downlink control channel (EPDCCH) by a terminal in a wireless communication system according to one embodiment of the present invention comprises: a step of receiving EPDCCH; and a step of determining a resource for transmitting the acknowledgement based on one or more of the values related to the enhanced control channel element (ECCE) index which is the lowest from among the indices of ECCEs used in the EPDCCH transmission, an antenna port index, and a predetermined value indicated by downlink control information. The transmitting acknowledgement method determines whether to use the predetermined value indicated by the downlink control information when the resource for transmitting the acknowledgement is determined, based on one or more of the transmitted EPDCCH type, the size of an DCI format, information related to the physical resource block (PRB) set of the transmitted EPDCCH, and the type of the signal transmitted on the PDSCH indicated by the EPDCCH.
Abstract:
An embodiment of the present invention provides a method for transmitting a signal by a terminal in a wireless communication system, the method comprising a step of the terminal selecting a transmission resource, and a step of the terminal transmitting the signal to another terminal by using the selected transmission resource, wherein the transmission resource includes a first transmission resource range for transmission of the first signal, and a second transmission resource range for transmission of a second signal and wider than the first transmission resource range, wherein the first transmission resource range and the second transmission resource range are mapped onto different subchannel indices, and the first transmission resource range is allocated to an edge of a frequency range for the transmission of the first signal and the second signal.