Method and apparatus for transmitting and receiving downlink control channel

    公开(公告)号:US10912073B2

    公开(公告)日:2021-02-02

    申请号:US16529117

    申请日:2019-08-01

    Abstract: A method of receiving a downlink control channel at a user equipment (UE) in a wireless communication system is disclosed. The method includes receiving information on a resource element group (REG) bundle size and information on a size of a matrix for interleaving a plurality of REGs configuring at least one control channel element (CCE) through a higher layer, determining the matrix for interleaving the plurality of REGs based on the information on the size of the matrix and the information on the REG bundle size, interleaving the plurality of REGs bundled into one or more REG bundles according to the REG bundle size using the matrix, and receiving the downlink control channel based on the plurality of interleaved REGs.

    Signal transmission or reception method and apparatus therefor in wireless communication system

    公开(公告)号:US10735153B2

    公开(公告)日:2020-08-04

    申请号:US16301414

    申请日:2017-05-22

    Abstract: A method for a base station for transmitting a downlink signal in a wireless communication system according to one embodiment of the present invention comprises the steps of: modulating, of a codeword of a first terminal, a first part by means of a first modulation and coding scheme (MCS) and a second part by means of a second MCS; and transmitting the modulated codeword to the first terminal, wherein the second part of the codeword is transmitted along with a signal of a second terminal from the same resource on the basis of the non-orthogonal multiple access (NOMA) method, and the second MCS for the second part, transmitted on the basis of the NOMA method, has a lower modulation order than the first MCS for the first part.

    Method for transmitting or receiving signal in wireless communication system and apparatus therefor

    公开(公告)号:US10687322B2

    公开(公告)日:2020-06-16

    申请号:US16064959

    申请日:2018-06-04

    Inventor: Inkwon Seo

    Abstract: According to an embodiment of this invention, a method of receiving a downlink signal by a user equipment (UE) in a wireless communication system includes receiving a first control resource set (CORESET) configuration including information regarding a frequency resource of a first CORESET, and receiving a physical downlink control channel (PDCCH) signal by bundling a plurality of resource element groups (REGs) on the first CORESET, wherein the information regarding the frequency resource of the first CORESET may be a bitmap, and wherein the bitmap may allocate the frequency resource of the first CORESET in units of 6-RB such that a residual resource that does not belong to any REG bundle is not present in the first CORESET after every 2, 3, or 6 REGs are bundled into 1 REG bundle.

    Method for transmitting and receiving control information in wireless communication system, and apparatus therefor

    公开(公告)号:US10652876B2

    公开(公告)日:2020-05-12

    申请号:US16085522

    申请日:2017-03-16

    Abstract: A method for receiving, by a terminal, control information in a wireless communication system, according to one embodiment of the present invention, comprises: receiving search space information for a self-contained subframe having all of a downlink control symbol, a data symbol, and an uplink control symbol; determining control channel candidates in the downlink control symbol of the self-contained subframe on the basis of the search space information; and searching for downlink control information of the terminal from the determined control channel candidates, wherein the determined control channel candidates constitute at least two or more search spaces on the downlink control symbol, and the terminal can search for the downlink control information assuming a transmission scheme specific to a search space to which each control channel candidate belongs.

    Method and apparatus for enhanced control channel-based operation in wireless communication system

    公开(公告)号:US10560931B2

    公开(公告)日:2020-02-11

    申请号:US16115113

    申请日:2018-08-28

    Abstract: The present invention relates to a wireless communication system, and more specifically, to a method and an apparatus for enhanced control channel-based operation. A method for a base station for transmitting a downlink control channel in a wireless communication system according to one embodiment of the present invention comprises the steps of: determining one antenna port to be used for the downlink control channel; mapping the downlink control channel to a resource element on the basis of a reference signal for the one antenna port; and transmitting the mapped downlink control channel to a terminal, wherein an index for the one antenna port can be determined on the basis of a control channel element (CCE) index of the downlink control channel derived from the terminal identifier.

    Method for transmitting an receiving downlink signal in wireless communication system, and apparatus therefor

    公开(公告)号:US10560173B2

    公开(公告)日:2020-02-11

    申请号:US16318355

    申请日:2017-08-03

    Abstract: A method for a terminal, in a wireless communication system, receiving a downlink signal from a cell in which a plurality of beams are multiplexed according to an embodiment of the present invention comprises the steps of: generating a quasi-orthogonal scrambling sequence that is used for scrambling the downlink signal; and receiving the downlink signal through one or more beams of the plurality of multiplexed beams using the generated quasi-orthogonal scrambling sequence, wherein the terminal can initialise the quasi-orthogonal scrambling sequence using a beam-specific parameter corresponding to one or more beams for transmitting the downlink signal when generating the quasi-orthogonal scrambling sequence.

    Method for receiving or transmitting downlink control signal in wireless communication system, and apparatus therefor

    公开(公告)号:US10530549B2

    公开(公告)日:2020-01-07

    申请号:US14438577

    申请日:2013-11-28

    Abstract: The present invention relates to a method for receiving a downlink control signal in a wireless communication system including monitoring EPDCCH (enhanced physical downlink control channel) candidates to decode an EPDCCH in one or two EPDCCH sets on a first serving cell configured for the UE, and receiving a PDSCH (physical downlink shared channel) corresponding to the decoded EPDCCH. The EPDCCH candidates may include EPDCCH candidates for the first serving cell and EPDCCH candidates for a second serving cell scheduled by the first serving cell. Aggregation levels and the number of the EPDCCH candidates for the second serving cell at each of the aggregation levels are associated with bandwidth of the second serving cell.

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