公开(公告)号：US20200187069A1

公开(公告)日：2020-06-11

申请号：US16605402

申请日：2018-04-16

申请人： KT CORPORATION

发明人： Sung-pyo HONG ,  Woo-jin CHOI

IPC分类号： H04W36/00 ,  H04W36/36

摘要： Provided are a method and a device for performing a UE-based handover in a next generation wireless access network. The method of a UE may include receiving, from a source base station, an upper layer signaling including information on UE-based handover command and information on conditions for handover execution; storing a target cell configuration by using the information on conditions for handover execution; and determining whether to perform a handover procedure to a target cell, by determining whether predetermined conditions for handover are satisfied.

公开(公告)号：US10681673B2

公开(公告)日：2020-06-09

申请号：US16556800

申请日：2019-08-30

申请人： KT CORPORATION

发明人： Sung-pyo Hong

IPC分类号： H04W68/02 ,  H04W72/04 ,  H04W24/08 ,  H04W76/28

摘要： Provided are a method and apparatus for enabling a user equipment to perform a paging operation. The method includes: monitoring whether a paging message is present at a set of PDCCH monitoring occasions included in a paging occasion, detecting whether a base station has accessed to a channel including a frequency band over which the paging message is transmitted at one or more of the PDCCH monitoring occasions, and stopping the monitoring when detecting that the base station has accessed the channel.

公开(公告)号：US20200154135A1

公开(公告)日：2020-05-14

申请号：US16619231

申请日：2018-08-27

申请人： KT CORPORATION

发明人： Bae Keun LEE

IPC分类号： H04N19/577 ,  H04N19/159 ,  H04N19/176 ,  H04N19/56 ,  H04N19/52

摘要： An image decoding method according to the present invention comprises: a step of acquiring an initial motion vector of a current block; a step of deriving a refined motion vector for each of a plurality of search points on the basis of the initial motion vector; and a step of acquiring a motion vector of the current block on the basis of the refined motion vector of any one of the plurality of search points.

公开(公告)号：US20200154127A1

公开(公告)日：2020-05-14

申请号：US16613940

申请日：2018-05-16

申请人： KT CORPORATION

发明人： Bae Keun LEE

IPC分类号： H04N19/513 ,  H04N19/176 ,  H04N19/139 ,  H04N19/583

摘要： An image decoding method according to the present invention may comprise obtaining a motion vector of a current block, updating the motion vector when bi-directional optical flow is applied to the current block, performing motion compensation on the current block by using the updated motion vector.

公开(公告)号：US20200128250A1

公开(公告)日：2020-04-23

申请号：US16472849

申请日：2017-12-15

申请人： KT CORPORATION

发明人： Bae Keun LEE

IPC分类号： H04N19/137 ,  H04N19/30 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176

摘要： A method for decoding a video according to the present invention may comprise: determining a motion vector precision of a current block, generating a motion vector candidate list of the current block, obtaining a motion vector prediction value of the current block from the motion vector candidate list, determining whether a precision of the motion vector prediction value is identical to a motion vector precision of the current block, scaling the motion vector prediction value according to the motion vector precision of the current block, when the precision of the motion vector prediction value is different from the motion vector precision of the current block, and obtaining a motion vector of the current block using the scaled motion vector prediction value.

公开(公告)号：US20200099476A1

公开(公告)日：2020-03-26

申请号：US16574403

申请日：2019-09-18

申请人： KT CORPORATION

发明人： Kyujin PARK

IPC分类号： H04L1/18 ,  H04W72/04

摘要： Provided is a method of a receiver UE for transmitting sidelink HARQ feedback information. The method includes receiving a sidelink data channel (a physical sidelink shared channel, “PSSCH”) over unicast or groupcast, determining a HARQ feedback mode for transmitting HARQ feedback information in response to the reception of the PSSCH, and transmitting the HARQ feedback information according to a result obtained by decoding the PSSCH based on the determined HARQ feedback mode.

公开(公告)号：US10602169B2

公开(公告)日：2020-03-24

申请号：US16036910

申请日：2018-07-16

申请人： KT CORPORATION

发明人： Bae Keun Lee ,  Joo Young Kim

IPC分类号： H04N19/33 ,  H04N19/117 ,  H04N19/70 ,  H04N19/174 ,  H04N19/187 ,  H04N19/105 ,  H04N19/159 ,  H04N19/172 ,  H04N19/82 ,  H04N19/182 ,  H04N19/59 ,  H04N19/50 ,  H04N19/436

摘要： A method for decoding a multi-layer video signal, according to the present invention, determines whether a corresponding picture in a lower layer is used as an inter-layer reference picture for a current picture in an upper layer, on the basis of a temporal level identifier of the lower layer, performs inter-layer prediction for the current picture by using the corresponding picture if the corresponding picture in the lower layer is used as the inter-layer reference picture for the current picture in the upper layer, reconstructs the current picture by using a prediction sample acquired through the inter-layer prediction and a residual sample of the current picture, and selectively applies a loop filter to a tile boundary of the reconstructed current picture on the basis of a layer filter flag for the upper layer.

公开(公告)号：US10602165B2

公开(公告)日：2020-03-24

申请号：US15939196

申请日：2018-03-28

申请人： KT CORPORATION

发明人： Bae Keun Lee ,  Joo Young Kim

IPC分类号： H04N19/30 ,  H04N19/70 ,  H04N19/33 ,  H04N19/86 ,  H04N19/105 ,  H04N19/82 ,  H04N19/59 ,  H04N19/172 ,  H04N19/187 ,  H04N19/513 ,  H04N19/61

摘要： A scalable video signal decoding method according to the present invention is characterised in that whether or not a corresponding picture in a lower layer is being used as an inter layer reference picture for a current picture in an upper layer is determined on the basis of a time level identifier for the lower layer, and if the corresponding picture in the lower layer is being used as an inter layer reference picture for the current picture in the upper layer, inter layer prediction of the current picture is carried out using the corresponding picture, and the current picture is restored using a prediction sample obtained by means of inter layer prediction and a residual sample of the current picture.

公开(公告)号：US10602136B2

公开(公告)日：2020-03-24

申请号：US16006104

申请日：2018-06-12

申请人： KT CORPORATION

发明人： Bae Keun Lee ,  Joo Young Kim

IPC分类号： H04N19/33 ,  H04N19/105 ,  H04N19/70 ,  H04N19/117 ,  H04N19/172 ,  H04N19/187 ,  H04N19/31 ,  H04N19/159 ,  H04N19/61 ,  H04N19/124 ,  H04N19/513 ,  H04N19/436

摘要： A scalable video signal decoding method, according to the present invention, determines a corresponding picture belonging to a lower layer used for an inter-layer prediction of a current picture belonging to an upper layer, and performs the inter-layer prediction of the current picture by using the corresponding picture in the determined lower layer, wherein the inter-layer prediction is restrictively performed according to a tile boundary alignment flag indicating whether tiles between the upper layer and the lower layer are aligned.

公开(公告)号：US20200077086A1

公开(公告)日：2020-03-05

申请号：US16613913

申请日：2018-05-16

申请人： KT CORPORATION

发明人： Bae Keun LEE

IPC分类号： H04N19/105 ,  H04N19/159 ,  H04N19/119 ,  H04N19/70 ,  H04N19/176

摘要： The image decoding method according to the present invention comprises the steps of determining an intra prediction mode of a current block, dividing the current block into a plurality of subblocks, and for the plurality of subblocks, sequentially performing intra prediction.