公开(公告)号：US10050756B2

公开(公告)日：2018-08-14

申请号：US15122629

申请日：2015-04-07

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun Park ,  Yunjung Yi ,  Kijun Kim

IPC: G06F11/00 ,  H04L1/16 ,  H04L1/00 ,  H04L12/26 ,  H04L5/00 ,  H04B7/26 ,  H04J11/00 ,  H04W24/10 ,  H04W48/16 ,  H04W56/00

Abstract: According to an embodiment of the present invention, a terminal receives, from a base station, a discovery signal configuration comprising a first CSI-RS configuration, and takes RRM measurements of the discovery signal on based on the discovery signal configuration, wherein if the discovery signal corresponds to a first CSI-RS received on based on the first CSI-RS configuration, and if a first cell ID included in the first CSI-RS configuration corresponds to a cell-specific reference signal, the first CSI-RS and cell-specific reference signal are assumed to be quasi co-located (QCL), and at least one from among the characteristics of the wireless channel, assumed to be QCL between the first CSI-RS for making RRM measurements and the cell-specific reference signal, is different from the characteristics of the wireless channel assumed to be QCL between a second CSI-RS for CSI measurements and the cell-specific reference signal.

公开(公告)号：US10027395B2

公开(公告)日：2018-07-17

申请号：US14913641

申请日：2014-10-24

Applicant: LG ELECTRONICS INC. ,  SOGANG UNIVERSITY RESEARCH FOUNDATION

Inventor： Jonghyun Park ,  Yoonsoo Kim ,  Wonjin Sung ,  Jihoon Sung ,  Hosik Kang

IPC: H04B7/06 ,  H04L5/00 ,  H04B7/0456 ,  H04B7/0417 ,  H04W24/08

Abstract: A method and device for reporting channel state information in a wireless communication system is disclosed. The method for reporting channel state information (CSI) by means of a terminal in a wireless communication system according to an embodiment of the present invention includes: measuring a first reference signal transmitted from a first subset of antenna ports from among a plurality of antenna ports in a base station; measuring a second reference signal transmitted from a second subset of antenna ports from among the plurality of antenna ports; and reporting the CSI to the base station based on at least one of the measurement of the first reference signal and the measurement of the second reference signal, wherein at least one of the plurality of antenna ports is included in both the first subset and the second subset.

公开(公告)号：US09967874B2

公开(公告)日：2018-05-08

申请号：US15642680

申请日：2017-07-06

Applicant: LG Electronics Inc.

Inventor： Jonghyun Park ,  Eunsun Kim ,  Hanbyul Seo ,  Kijun Kim ,  Byounghoon Kim

IPC: H04W72/04 ,  H04B7/024 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04W72/042 ,  H04B7/024 ,  H04L5/0035 ,  H04L5/0094 ,  H04L27/2656

Abstract: The present invention relates to a wireless communication system, and more specifically, to a method and an apparatus for transmitting or receiving a downlink signal considering an antenna port relationship. The method for enabling a terminal to receive a physical downlink sharing channel (PDSCH) signal in the wireless communication system according to one embodiment of the present invention can determine a PDSCH start symbol index according to the predetermined priority and receive the PDSCH signal therethrough. The PDSCH start symbol index can be determined when a PDSCH start symbol value included in a PDSCH resource element mapping and Quasi co-location Indicator (PQI) parameter set is determined by an upper layer. The PDSCH start symbol index can be determined according to the PDSCH start symbol value for a cell receiving the PDSCH when the PDSCH start symbol value included in the PQI parameter set is not determined by the upper layer.

公开(公告)号：US09907066B2

公开(公告)日：2018-02-27

申请号：US15021528

申请日：2015-02-04

Applicant: LG Electronics Inc.

Inventor： Jonghyun Park ,  Yunjung Yi ,  Kijun Kim

IPC: H04W4/00 ,  H04W72/04 ,  H04W16/32 ,  H04W48/16 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0094 ,  H04W16/32 ,  H04W48/16 ,  H04W72/0446 ,  H04W72/0453

Abstract: Disclosed in the present invention is a method for receiving a discovery reference signal by a terminal in a wireless communication system. Particularly, the method comprises the steps of receiving discovery reference signal configuration information through an upper layer; blind-detecting at least one discovery reference signal on the basis of the configuration information; and transmitting/receiving a signal to/from a small cell corresponding to the detected at least one discovery signal and a serving cell, wherein the discovery reference signal configuration information includes information on a candidate parameter set of the discovery reference signal.

公开(公告)号：US09893856B2

公开(公告)日：2018-02-13

申请号：US15468398

申请日：2017-03-24

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Eunsun Kim ,  Hanjun Park ,  Hanbyul Seo ,  Jonghyun Park ,  Kijun Kim

IPC: H04W72/04 ,  H04L5/00 ,  H04B7/024 ,  H04B7/06

CPC classification number: H04L5/0048 ,  H04B7/024 ,  H04B7/0626 ,  H04L5/0005 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0053 ,  H04L5/0057 ,  H04L5/0073 ,  H04L5/0094 ,  H04W72/042 ,  H04W72/0446

Abstract: The present invention relates to a wireless communication system. A method for receiving data by a user equipment (UE) in a cooperative multi-point (CoMP) wireless communication system includes receiving information indicating a transmission base station (BS) that actually transmits data among a plurality of BSs that participate in CoMP, receiving information about zero-power channel state information-reference signal (CSI-RS) of each of the plural BSs, and assuming that data is not mapped to a resource element of zero-power CSI-RS corresponding to the transmission BS and receiving the data through a physical downlink control channel (PDSCH).

公开(公告)号：US09888493B2

公开(公告)日：2018-02-06

申请号：US14894891

申请日：2014-09-05

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun Park ,  Kijun Kim

IPC: H04W4/00 ,  H04W72/12 ,  H04B7/024 ,  H04L5/00

CPC classification number: H04W72/1289 ,  H04B7/024 ,  H04L5/0055

Abstract: A method for performing multi-point coordination for receiving uplink data by a serving point in accordance with an embodiment of the present invention comprises the steps of: scheduling physical uplink shared channel (PUSCH) transmission of a served terminal by the serving point; transmitting a message including at least a part of a scheduling result of the PUSCH transmission to a coordinated point; and after transmission of the message, transmitting downlink control information including the scheduling result of the PUSCH transmission to the terminal, wherein the PUSCH of the terminal scheduled by the serving point is received by the coordinated point which has obtained the message.

公开(公告)号：US09843425B2

公开(公告)日：2017-12-12

申请号：US15340701

申请日：2016-11-01

Applicant: LG ELECTRONICS INC.

Inventor： Kijun Kim ,  Jonghyun Park

IPC: H04L5/00 ,  H04L27/26 ,  H04B7/06

CPC classification number: H04L5/0048 ,  H04B7/068 ,  H04B7/0684 ,  H04L5/0023 ,  H04L5/0057 ,  H04L5/0082 ,  H04L27/2601

Abstract: A method of transmitting channel state information (CSI)-reference signals (RS) at a base station in a wireless communication system includes generating a reference signal sequence, and mapping the reference signal sequence to resource elements (REs) included in one or more patterns for 8-port CSI-RS transmission among five patterns for 8-port CSI-RS transmission located in a first region of a PRB pair and three patterns for 8-port CSI-RS transmission located in a second region of the PRB pair. A maximum of two OFDM (orthogonal frequency division multiplexing) symbols is used for a physical downlink control channel in a subframe including the PRB pair.

公开(公告)号：US09806849B2

公开(公告)日：2017-10-31

申请号：US14957369

申请日：2015-12-02

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Jonghyun Park

IPC: H04L1/00 ,  H04L5/00 ,  H04W76/04 ,  H04B7/06

CPC classification number: H04L1/0028 ,  H04B7/0626 ,  H04L1/0026 ,  H04L1/0031 ,  H04L5/005 ,  H04L5/0057 ,  H04W76/28

Abstract: A method of reporting channel state information (CSI) to a base station by a terminal in a wireless communication system is disclosed. Specifically, the method includes configuring feedback chains corresponding to a plurality of CSI-reference signals (RSs) through upper layer signaling, receiving the plurality of CSI-RSs from the base station, calculating a complete channel quality indicator (CQI) for a whole channel using the plurality of CSI-RSs and dividing the complete CQI into partial CQIs corresponding to the respective feedback chains, and reporting CSI items including the partial CQIs to the base station through the feedback chains.

公开(公告)号：US09787450B2

公开(公告)日：2017-10-10

申请号：US14383216

申请日：2013-08-28

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Kijun Kim ,  Jonghyun Park ,  Hanbyul Seo ,  Bonghoe Kim

IPC: H04W24/10 ,  H04B7/04 ,  H04L5/00 ,  H04B7/0417

CPC classification number: H04L5/0051 ,  H04B7/0417 ,  H04B7/0486 ,  H04L5/0016 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0073 ,  H04L5/0091

Abstract: The present invention relates to a wireless communication system. A method for estimating a channel by a user equipment (UE) in a wireless communication system includes receiving information about at least one channel station information (CSI) configuration for reporting CSI of one of a plurality of serving cells, determining that the same precoding matrix is applied to a plurality of resource blocks when all of the at least one CSI configuration is configured to report a precoding matrix indicator (PMI) and a rank indicator (RI), and determining that the precoding matrix is applied to one resource block when CSI configuration configured not to report the PMI and the RI is present among the at least one CSI configuration, and estimating a channel based on a result of the determination.

公开(公告)号：US09723506B2

公开(公告)日：2017-08-01

申请号：US14394213

申请日：2013-04-12

Applicant: LG ELECTRONICS INC.

Inventor： Kijun Kim ,  Illsoo Sohn ,  Jonghyun Park

IPC: H04W24/10 ,  H04B17/309 ,  H04B7/024 ,  H04B7/06 ,  H04L12/26 ,  H04B17/24

CPC classification number: H04W24/10 ,  H04B7/024 ,  H04B7/0617 ,  H04B7/063 ,  H04B7/0632 ,  H04B17/24 ,  H04B17/309 ,  H04L43/08

Abstract: One embodiment of the present invention relates to a method for a terminal to report channel state information in a wireless communication system, comprising the steps of: calculating one or more pieces of channel quality information from a signal measurement resource configuration and a plurality of interference measurement resource configurations associated with the signal measurement resource configuration; and transmitting a channel state report including the calculated channel quality information.