Receiving method and user device in small-scale cell

    公开(公告)号:US10462771B2

    公开(公告)日:2019-10-29

    申请号:US14779531

    申请日:2014-03-07

    Abstract: According to one disclosure in the present specification, a receiving method for a user device in a small-scale cell is provided. The receiving method may include: a step of monitoring a plurality of candidate control channels within a search space for a serving cell; and a step of acquiring downlink control information (DCI) by decoding the plurality of candidate control channels. The DCI can include a resource block assignment field, and the resource block assignment field can include information about virtual system bandwidth in the downlink system bandwidth. The receiving method may include a step of receiving a data channel over multiple subframes, based on the virtual system bandwidth.

    Method and device for feeding back channel state information in wireless access system supporting machine type communication

    公开(公告)号:US10447454B2

    公开(公告)日:2019-10-15

    申请号:US15568777

    申请日:2016-04-28

    Abstract: The present invention relates to a wireless access system supporting machine type communication (MTC) and, particularly, to: a method by which an MTC terminal receives a channel state information index and feeds back channel state information on the basis of the channel state information index; and devices for supporting the method. As one aspect of the present invention, the method by which an MTC terminal feeds back channel state information (CSI) in a wireless access system for supporting machine type communication (MTC) can comprise the steps of: receiving an upper layer signal including a CQI index selected from a mother channel quality information (CQI) table; receiving a physical downlink shared channel (PDSCH) repeatedly transmitted on the basis of a modulation scheme and coding rate indicated by the CQI index; measuring CSI for the PDSCH; and feeding back the measured CSI, wherein the mother CQI table is set to include up to a signal to interference plus noise ratio (SINR) area for a maximum coverage enhancement (CE) level supported in a network, and the CQI index can be selected in consideration of a CE level supportable by the MTC terminal.

    Method for performing positioning in wireless communication system, and apparatus therefor

    公开(公告)号:US10349371B2

    公开(公告)日:2019-07-09

    申请号:US15317699

    申请日:2015-06-22

    Abstract: The present invention provides a method for performing positioning by a terminal in a wireless communication system including: receiving assistance data including reference cell information (ReferenceCellInfo) and neighboring cell information (NeighbourCellInfo) from a serving base station; receiving a positioning reference signal from each of a reference cell and at least one neighboring cell based on the received assistance data; measuring a reference signal time difference (RSTD) for the reference cell of at least one neighboring cell by using the received positioning reference signal; and reporting the measured RSTD to the serving base station.

    Data buffering method and apparatus for hybrid automatic repeat request in wireless access system supporting non-orthogonal multiple access scheme

    公开(公告)号:US10326560B2

    公开(公告)日:2019-06-18

    申请号:US15523666

    申请日:2015-11-03

    Abstract: The present invention relates to a variety of hybrid automatic repeat request (HARQ) methods, data buffering methods therefor, and apparatuses supporting the methods, in a wireless access system supporting a non-orthogonal multiple access (NOMA) scheme. As one embodiment of the present invention, a data buffering method, by a first terminal, for hybrid automatic repeat request (HARQ) in a wireless access system supporting a non-orthogonal multiple access (NOMA) scheme may comprise: a step of receiving, from a base station, data in which data for the first terminal and a second terminal are multiplexed in a NOMA scheme; a step of decoding the multiplexed data; a step of buffering data for the second terminal; and a step of transmitting HARQ-ACK information to the base station, depending on the decoding result.

    Method and terminal for detecting discovery signal

    公开(公告)号:US10292091B2

    公开(公告)日:2019-05-14

    申请号:US15123547

    申请日:2015-04-14

    Abstract: A disclosure of the present specification provides a method for detecting a discovery signal. The method is a method for detecting discovery signals from a plurality of transmission points (TP) using the same physical cell identifier (PCID) and may comprise the steps of: determining scrambling identifiers of the discovery signals for the plurality of transmission points on the basis of the PCID which is commonly used by the plurality of transmission points and resource elements (REs) of the discovery signals transmitted from the plurality of transmission points; and demodulating the discovery signals on respective positions of the resource elements using the determined scrambling identifiers to detect the discovery signals.

    Power control method and apparatus in wireless access system

    公开(公告)号:US10285139B2

    公开(公告)日:2019-05-07

    申请号:US16052093

    申请日:2018-08-01

    Abstract: A method for controlling uplink transmit power of a user equipment (UE) in a radio access system supporting a multi-connectivity mode is discussed. The method performed by the UE includes receiving a higher layer signal including first power parameters of a first serving cell from the first serving cell and a higher layer signal including first power parameters of a second serving cell from the second serving cell, receiving a physical downlink control channel (PDCCH) including second power parameters of the first serving cell from the first serving cell and a PDCCH including second power parameters of the second serving cell from the second serving cell, measuring two path loss values of the first and the second serving cells, respectively, calculating a physical uplink control channel (PUCCH) transmit power for the first serving cell and a PUCCH transmit power for the second serving cell in the multi-connectivity mode, and transmitting a PUCCH to the first serving cell based on the PUCCH transmit power for the first serving cell and a PUCCH to the second serving cell based on the PUCCH transmit power for the second serving cell.

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