Abstract:
Provided are a method and an apparatus for performing communication based on hybrid beamforming in a wireless communication system. Specifically, a user equipment (UE) transmits a dedicated scheduling request to a base station (BS). The dedicated scheduling request indicates a first scheduling request that is a request to transmit beam state information, multiplexed on an uplink data channel, or a second scheduling request that is a request to allocate a resource for a reference signal for beam refinement information. When the dedicated scheduling request indicates the first scheduling request, the UE receives an uplink grant including a response to the first scheduling request from the BS. The UE feeds the BSI back multiplexed on the uplink data channel to the BS.
Abstract:
A method for transmitting and receiving data in a wireless communication system and an apparatus for the method are disclosed. More specifically, a method for transmitting downlink data in a wireless communication system comprises transmitting, by an eNB, first downlink data through a physical downlink shared channel (PDSCH) region according to a radio frame structure based on a first transmission time interval (TTI); and transmitting, by the eNB, second downlink data through a short PDSCH (sPDSCH) region according to a radio frame structure based on a second TTI, wherein downlink control information (DCI) related to the second downlink data is transmitted through a physical downlink control channel (PDCCH) or a short PDCCH (sPDCCH).
Abstract:
Embodiments of the present invention provide a method for allocating and updating an identifier in order to protect the location privacy of a user equipment (UE), and apparatuses for supporting the same. As an embodiment of the present invention, a method for protecting the location privacy of a UE in a wireless access system may comprise the steps of: receiving, from a mobility management entity (MME), an access acceptance message including a globally unique temporary identifier (GUTI) assigned so as not to expose an IMSI of the UE and update period information indicating an update period of the GUTI; determining whether to update the GUTI on the basis of the update period information; transmitting a GUTI update request message to the MME when the update period indicated by the update period information is reached; and receiving a GUTI update message including a new updated GUTI, in response to the GUTI update request message.
Abstract:
The present invention relates to a method for receiving a downlink signal at a terminal in a wireless communication system. In particular, the method comprises: receiving a control channel to be transmitted to a specific subframe via a first carrier; and decoding a data channel corresponding to the control channel to be transmitted to the specific subframe via a second carrier, using at least one parameter included in the control channel, wherein information on the orthogonal frequency division multiplexing (OFDM) start symbol of data channels that are transmitted via each of at least one carrier allocated to the terminal is signaled through an upper layer.
Abstract:
A wireless communication system is disclosed. Disclosed herein are methods for transmitting a physical uplink control channel (PUCCH) signal in a wireless communication system, which includes setting transmit power for the PUCCH signal, and an apparatus thereof. If the PUCCH signal is transmitted on a subframe configured for a scheduling request (SR), the PUCCH signal includes one or more hybrid automatic repeat request acknowledgement (HARQ-ACK) bits and an SR bit. When determining the transmit power for the PUCCH, the SR bit is selectively considered depending on whether or not a transport block for an uplink shared channel (UL-SCH) is present in the subframe.
Abstract:
The present invention relates to a wireless access system supporting a full duplex radio (FDR) transmission environment. A method for a terminal to measure interference in a wireless communication system supporting FDR according to an embodiment of the present invention comprises the steps of: receiving an interference measurement resource at a measurement subframe; and measuring, at the interference measurement resource, interference from a neighboring terminal on the basis of an interference reference signal transmitted from the neighboring terminal. In addition, data is not transmitted or is transmitted with zero-power in the interference measurement resource.
Abstract:
A method for identifying a mobile cell causing interference by a terminal connected to a first mobile cell, according to one embodiment of the present invention, comprises the steps of: acquiring system information of a fixed base station to which the first mobile cell is connected through a backhaul interface; acquiring a physical cell identifier of a second mobile cell neighboring the first mobile cell by a cell search; determining whether the second mobile cell causes interference to the first mobile cell on the basis of the physical cell identifier of the second mobile cell and the system information of the fixed base station; and reporting the physical cell identifier of the second mobile cell to the first mobile cell if the interference to the first mobile cell is determined to be caused by the second mobile cell.
Abstract:
An embodiment of the present invention relates to a method in which a terminal receives control information in a wireless communication system, said method comprising: a step of performing blind decoding in at least one portion of a resource region except the time unit indicated by a physical control format indicator channel (PCFICH) on a subframe, said at least one portion of the resource region is determined by whether a synchronizing signal or system information is transmitted or not.
Abstract:
A method is presented for transmitting an Acknowledgement/Negative Acknowledgement (ACK/NACK) information at a User Equipment (UE) configured to use Physical Uplink Control Channel (PUCCH) format 3 in a wireless communication system. The UE determines that transmission of a scheduling request is configured in one uplink subframe in which a transmission of ACK/NACK information for downlink transmission in a downlink subframe set including one or more downlink subframes is to be transmitted. The UE transmits the ACK/NACK information and the scheduling request using PUCCH format 1b in the one uplink subframe, when transmission of the ACK/NACK information coincides with the one uplink subframe for the transmission of the scheduling request and at least one of specific conditions is met, (e.g., the ACK/NACK information corresponds to one Semi-Persistent Scheduling (SPS) release Physical Downlink Control Channel (PDCCH) having a Downlink Assignment Index (DAI) value of 1 in the downlink subframe set).
Abstract:
Provided are a method and apparatus for transmitting uplink data. Particularly, a method for transmitting uplink data in a wireless communication system, the method includes transmitting, by a user equipment, a scheduling request to a base station, and transmitting, by the user equipment, uplink data through a contention-based physical uplink shared channel (PUSCH) resource block that can transmit the uplink data without a uplink grant of the base station, wherein the scheduling request and the contention-based PUSCH resource block may be transmitted in an identical subframe.