Abstract:
Provided are an apparatus and a method for allocating resources in a wireless communication system. In particular, the present invention includes the feature of alternately allocating resources for D2D communication and resources for cellular communication, or allocating resources of a D2D link to not be adjacent to each other. In addition, the present invention prevents interference with the cellular communication and interference with other D2D links by allocating a partial area of the resources allocated for the D2D communication to an area for transmitting a D2D uplink symbol to an eNB, or by adding a GP symbol to a partial area of the resources for the D2D communication. Furthermore, in the case of applying a TDD scheme, the present invention prevents interference with symbols for performing the cellular communication by defining a partial section of a special subframe as a section for transmitting the D2D uplink symbol, or by reflecting a time delay of N OFDM symbol durations. Accordingly, the present invention prevents the D2D communication from causing interference.
Abstract:
Provided are a method and a device for setting a space division connection between terminals for V2X communication in a wireless communication system. Specifically, a second terminal requests a connection setting with a first terminal from a base station. The second terminal measures a signal of the first terminal and generates a first beam group pair comprising a transmission beam group of the first terminal, which has a large signal size, and a reception beam group of the second terminal. When the second terminal receives a signal of a third terminal by using the reception beam group of the second terminal, the second terminal measures a signal of the third terminal and generates a second beam group pair comprising a transmission beam group of the third terminal, which has a large signal size, and the reception beam group of the second terminal.
Abstract:
A communication device for performing magnetic interference cancellation comprises: a baseband unit including a first transmission chain and a second transmission chain; a first distributed radio unit (RU) connected to the first transmission chain and set to a transmit (Tx) mode; and a second distributed RU connected to the second transmission chain and set to a receive (Rx) mode, wherein the baseband unit includes a phase correction unit, connected to the first transmission chain and the second transmission chain, for performing phase correction for the magnetic interference cancellation on a signal transmitted from the first transmission chain, and the second transmission chain is configured to transmit a signal output from the phase correction unit to the second distributed RU, the second distributed RU uses a signal that was output from the phase correction unit and has passed through the second transmission.
Abstract:
The present description provides a method for transmitting uplink (UL) data in a wireless communication system. A method, which is carried out by means of a terminal, comprises the steps of: receiving, from a base station, control information related to transmission of low latency radio (LLR) service data; transmitting, on the basis of the received control information, the low latency radio service data to the base station through an urgent channel, wherein the control information comprises urgent channel information and/or urgent bearer information defined for transmission of the low latency radio service data.
Abstract:
The present invention provides a method for performing beam measurement in a wireless communication system, and a device for the method. Particularly, a method for a terminal to perform beam measurement in a wireless communication system may comprise: a step of receiving a plurality of reference signals corresponding to a plurality of transmission beams; a step of identifying at least one first transmission beam corresponding to at least one first reception beam included in a first reception beam group, on the basis of measurement performed on the first reception beam group by using the plurality of reference signals; a step of identifying at least one second transmission beam corresponding to at least one second reception beam included in a second reception beam group, on the basis of measurement performed on the second beam group by using the plurality of reference signals; and a step of reporting, to a base station, an index of the identified at least one first transmission beam and an index of the identified at least one second transmission beam, respectively.
Abstract:
The present specification provides a method for performing an access procedure with a moving cell by a terminal in a wireless communication system, the method comprising the steps of: receiving, from a base station, first system information (SI) including information associated with a moving cell access; and determining whether to access a moving cell on the basis of the information associated with the moving cell access.
Abstract:
A method for performing encoding on the basis of a parity check matrix of a LDPC code, according to one embodiment of the present invention, comprises the steps of: generating, by a terminal, a parity check matrix, wherein the parity check matrix corresponds to a characteristic matrix, each element of the characteristic matrix corresponds to a shift index value determined by a modulo operation between a corresponding element in a base matrix and a lifting value, and the base matrix is a 46 x 68 matrix; and performing, by the terminal, encoding of input data by using the parity check matrix, wherein the lifting value is associated with the length of the input data.
Abstract:
Provided is a method and device for receiving a signal in a wireless communication system to which a multiple-transmission technique is applied. A proposed wireless communication system proposes a method for maximizing packet transmission within a target time in multiple paths. Specifically, a terminal receives, from a first base station, multiple-transmission activation information and control information for transmission of a transmission block. The terminal decodes the multiple-transmission activation information and the control information, and receives the transmission block from the first base station and a second base station. At this time, the multiple-transmission activation information includes a multiple-transmission activation indicator indicating that the first base station and the second base station can transmit the transmission block until a preconfigured time.
Abstract:
The present invention relates to a method for user equipment to perform random access in a wireless communication system and a device therefor. The present invention can provide a method and device which: select a predetermined preamble among multiple preamble sets configured according to predetermined conditions; repeatedly transmit the selected predetermined preamble to a base station via one or multiple mutually different neighboring beams; and receive, from the base station and in response to the preamble, a response message containing a temporary identifier of user equipment, wherein the selected predetermined preamble is repeatedly transmitted on resources which constitute a subframe and are distinguished according to the one or multiple mutually different beams.
Abstract:
Provided are a method and device for transmitting uplink data in a wireless communication. More specifically, a user equipment (UE) receives, from a first base station (BS), cell group information indicating that the first BS and a second BS are included in the same cell group. The UE receives, from the first BS, a first reference signal and assignment information regarding a first semi-persistent scheduling (SPS) resource. The UE transmits, to the second BS, a first uplink signal on the basis of the first SPS resource and the first reference signal.