公开(公告)号：US10158411B2

公开(公告)日：2018-12-18

申请号：US15721068

申请日：2017-09-29

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Kijun Kim ,  Hyunho Lee

IPC: H04B7/06 ,  H04B7/04 ,  H04W72/04 ,  H04L1/00 ,  H04L5/00 ,  H04L25/03 ,  H04B7/0456

Abstract: The present invention relates to a wireless communication system. According to one embodiment of the present invention, a method for transmitting, by a terminal, channel state information (CSI) in a wireless communication system comprises the steps of: subsampling a code book for four antenna ports; and feeding back the CSI on the basis of the subsampled code book, wherein the CSI includes a rank indicator (RI) reported together with a precoding type indicator (PTI), and if the RI is greater than 2, the PTI is set to one.

公开(公告)号：US10154480B2

公开(公告)日：2018-12-11

申请号：US15099797

申请日：2016-04-15

Applicant: LG Electronics Inc.

Inventor： Hakseong Kim ,  Hanbyul Seo ,  Kijun Kim

IPC: H04W72/04 ,  H03M13/27 ,  H03M13/37 ,  H03M13/00 ,  H04L1/00 ,  H04L5/00 ,  H04J11/00 ,  H04W84/04 ,  H04W88/08

Abstract: A method and apparatus for transmitting and receiving a Relay Physical Downlink Control Channel (R-PDCCH) being a control channel for a relay node (RN) in a wireless communication system are disclosed. To transmit an R-PDCCH to a RN, a BS includes a processor for interleaving a predetermined number of Control Channel Elements (CCEs), mapping the interleaved CCEs to at least one Virtual Resource Block (VRB) configured for R-PDCCH transmission, mapping the at least one VRB to at least one Physical Resource Block (PRB), and a transmitter for transmitting the R-PDCCH to the RN through the at least one PRB.

公开(公告)号：US10153879B2

公开(公告)日：2018-12-11

申请号：US15341464

申请日：2016-11-02

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Kijun Kim ,  Jonghyun Park

IPC: H04L5/00 ,  H04W72/04 ,  H04B7/06

Abstract: The present specification proposes a method of reporting channel quality information (CQI) by a user equipment (UE) to a base station (BS) in a wireless communication system. Specifically, the method includes the step of receiving a cell specific reference signal from the BS; calculating the CQI using the cell specific reference signal on the assumption that a specific number of resource elements (REs) for a demodulation-reference signal (DM-RS) exists; and reporting the CQI to the BS. Especially, if a most recent reported rank is 3 or 4, the specific number of REs for the DM-RS is assumed as a specific value, which is different from a minimum number of REs for the DM-RS or a maximum number of REs for the DM-RS.

公开(公告)号：US10149288B2

公开(公告)日：2018-12-04

申请号：US14436798

申请日：2013-08-13

Applicant: LG Electronics Inc.

Inventor： Eunsun Kim ,  Byounghoon Kim ,  Kijun Kim

IPC: H04W72/04 ,  H04L5/00 ,  H04W68/00 ,  H04W76/28

Abstract: A method of receiving downlink data in a wireless communication system according to an embodiment of the present invention includes: receiving a first parameter, for determining the effectiveness of a channel state information-reference signal (CSI-RS) from a special cell, from a first cell; and obtaining information on a sub frame having non-effective CSI-RS by using the number of sub frames to which the paging message of a second cell is transmitted for a reference time, and the first parameter may be different from a second parameter that is transmitted by the second cell and indicates the number of sub frames to which the paging message of the second cell is transmitted for the reference time.

公开(公告)号：US10122480B2

公开(公告)日：2018-11-06

申请号：US15307704

申请日：2015-04-29

Applicant: LG ELECTRONICS INC.

Inventor： Seonwook Kim ,  Seungmin Lee ,  Kijun Kim ,  Hanbyul Seo ,  Byounghoon Kim

IPC: H04B17/345 ,  H04W72/12 ,  H04W24/10 ,  H04L5/00 ,  H04W76/15 ,  H04W16/14 ,  H04W76/02

Abstract: The present invention relates to a wireless access system supporting an unlicensed band and provides a method for reporting channel state information (CSI) on a transmission opportunity (TxOP) duration, and devices supporting the same. According to one embodiment of the present invention, a method by which a user equipment (UE) reports CSI of a TxOP duration in a wireless access system supporting carrier aggregation (CA) with the unlicensed band comprises the steps of: receiving CSI interference measurement (CSI-IM) configuration information related to the TxOP duration through a primary cell (Pcell); measuring an interference amount in subframes of a secondary cell (Scell), in which CSI-IM is set, on the basis of the CSI-IM configuration information; measuring CSI of the TxOP duration for the Scell by using the interference amount; and transmitting the CSI to a base station, wherein the Pcell can be a serving cell configured in a licensed band, and the Scell can be a serving cell configured in the unlicensed band.

公开(公告)号：US10117239B2

公开(公告)日：2018-10-30

申请号：US15622560

申请日：2017-06-14

Applicant: LG ELECTRONICS INC.

Inventor： Hakseong Kim ,  Hanbyul Seo ,  Kijun Kim

IPC: H04W4/00 ,  H04W72/04 ,  H04W24/02 ,  H04L5/00 ,  H04B7/0413 ,  H04W56/00

Abstract: The present invention relates to wireless communication, and more particularly, to a method for transmitting a signal using a plurality of antenna ports and a transmission end apparatus for same. According to a method for a transmission end transmitting the signal in a multi-input multi-output (MIMO) wireless communication system of the present invention, a step of transmitting instruction information on a first channel transmission method to a reception end, and a step of transmitting the first channel to the reception end using a resource region are comprised, wherein the first channel is either an advanced-physical downlink control channel (A-PDCCH) or a relay-physical downlink control channel (R-PDCCH), the first channel is not transmitted when at least a portion of the resource region overlaps with a resource region used for transmitting a second channel, and wherein the second channel can be periodically transmitted using a predetermined portion of the resource region.

公开(公告)号：US10111104B2

公开(公告)日：2018-10-23

申请号：US14655478

申请日：2013-06-21

Applicant: LG Electronics Inc.

Inventor： Eunsun Kim ,  Byounghoon Kim ,  Kijun Kim

IPC: H04W24/02 ,  H04W16/02 ,  H04W16/32 ,  H04W74/08 ,  H04L5/00 ,  H04W72/04 ,  H04W72/08 ,  H04W40/24 ,  H04W84/04

Abstract: According to one embodiment of the present invention, disclosed is a method for measuring a subband by pico base station(s) located within a coverage of a macro base station in a wireless communication system. The method is performed by a first pico base station, and comprises the steps of: receiving beacon signals from other pico base station(s) in the coverage of the macro base station via each subband of all the subbands of the whole band of the wireless communication system, and measuring the receiving quality of the beacon signal received via each subband; determining whether to select at least one subband from among said all subbands based on the measured receiving quality of the beacon signal; and transmitting, if at least one subband is selected, the beacon signal via the selected at least one subband.

公开(公告)号：US10098105B2

公开(公告)日：2018-10-09

申请号：US15263579

申请日：2016-09-13

Applicant: LG Electronics Inc.

Inventor： Hyungtae Kim ,  Jonghyun Park ,  Kijun Kim

IPC: H04W4/00 ,  H04W72/04 ,  H04L5/00 ,  H04W88/06

Abstract: The present specification proposes a method for a user equipment to receive a DM-RS (demodulation-reference signal) from a base station in a multi-antenna-based wireless communication system. Specifically, the method includes the step of configuring a plurality of parameter sets via a higher layer signaling, receiving a downlink control signal including information on an antenna port for the DM-RS and a number of layers, and receiving the DM-RS and a downlink data signal corresponding to the DM-RS based on the downlink control signal. In this case, the downlink control signal comprises an indicator for indicating one of a plurality of the parameter sets and each of a plurality of the parameter sets comprises information indicating a scrambling identifier of the DM-RS.

公开(公告)号：US10097327B2

公开(公告)日：2018-10-09

申请号：US15359776

申请日：2016-11-23

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun Park ,  Illsoo Sohn ,  Kijun Kim ,  Hanbyul Seo

IPC: H04L5/00 ,  H04B7/024 ,  H04W72/12 ,  H04L1/18 ,  H04W88/02

Abstract: A method and a user equipment (UE) for receiving, and a method and a base station (BS) for transmitting a UE specific reference signal based-downlink data channel in a wireless communication system are discussed. The method for receiving a UE specific reference signal based-downlink data channel according to an embodiment includes receiving a downlink control channel from a network; and receiving the UE-specific reference signal based-downlink data channel from the network based on the downlink control channel. The downlink control channel includes an indicator indicating one of two or more parameters configured by a higher layer. The two or more parameters indicate antenna ports of a certain reference signal which is assumed to be quasi co-located with antenna ports of a UE-specific reference signal.

公开(公告)号：US20180234959A1

公开(公告)日：2018-08-16

申请号：US15887326

申请日：2018-02-02

Applicant: LG ELECTRONICS INC.

Inventor： Minki AHN ,  Jiwon Kang ,  Kijun Kim ,  Jonghyun Park ,  Changhwan Park ,  Yunjung Yi

IPC: H04W72/04

CPC classification number: H04W72/046 ,  H04L1/16 ,  H04W72/0406 ,  H04W72/042

Abstract: In the present invention, a method for performing an uplink transmission in a wireless communication system and an apparatus for supporting the same are disclosed. Particularly, a method for transmitting an uplink control channel in a wireless communication system by a terminal may comprise receiving, from a base station, beam information regarding one or more beams for transmitting a physical uplink control channel (PUCCH), via a radio resource control (RRC) signaling; receiving, from the base station, beam indication information indicating a specific beam among the one or more beams using a medium access control-control element (MAC-CE); and transmitting, to the base station, the physical uplink control channel using the specific beam.