Abstract:
The present invention relates to a signal transceiving method for detecting site-specific ray characteristics information unique to millimeter wave (mm Wave) links and detecting rich resolvable rays, and to device supporting same. The method for a terminal ray-scanning in a wireless access system supporting millimeter wave technology, according to one embodiment of the present invention, comprises the steps of: receiving a synchronization signal to synchronize with a base station; synchronizing with the base station using the synchronization signal; receiving, from the base station, pilot signals having different configuration patterns according to each transmitting antenna port; and ray-scanning using the pilot signals.
Abstract:
An AP information management entity of a cellular system transmits a request for information on an AP to an AP server, and receives a response, which includes a result code of the request, from the AP server. The AP information management entity of the cellular system may be one of an eNodeB (eNB), mobility management entity (MME), or a new entity of the cellular system.
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 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:
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.
Abstract:
Disclosed are a communication performing method and terminal, and the method is a method by which a terminal with dual connectivity performs communication in a heterogeneous cell environment, in which: a first reporting message reporting that a downlink signal is received from a small cell in an intensity greater than a threshold value is transmitted to a macro cell; an RRC establishment message indicating a connection to a small cell cluster is received from the macro cell; connections are added to a plurality of small cells included in the small cell cluster according to additional time information included in the RRC establishment message; and the connections to the plurality of added small cells are respectively activated according to activation connection time information included in the RRC establishment message, and the small cell cluster is determined on the basis of information on a location relationship among the plurality of small cells.
Abstract:
A method for and apparatus for controlling transmission power in a wireless communication system is provided. A wireless device checks a duration in which a plurality of radio access technologies (RATs) for uplink resources overlaps, determines whether the transmission power of the UE is greater than a maximum power restriction of the UE in the duration, and controls power of at least one RAT based on priorities of the plurality of RATs so that the transmission power of the UE is under the maximum power restriction of the UE. Thus, dynamic and efficient transmission power is supported.
Abstract:
A method for performing tracking area (TA) update by a UE in a cloud radio access network (C-RAN) includes: receiving at least one of neighbor radio remote unit (RRU) information and neighbor baseband unit (BBU) information from a primary BBU; setting a TA based on the received information and characteristics of the UE; and transmitting information on the set TA to the primary BBU during a radio resource control (RRC) connection release procedure.