-
公开(公告)号：USRE49171E1
公开(公告)日：2022-08-09
申请号：US16866376
申请日：2020-05-04
Applicant: LG ELECTRONICS INC.
Inventor： Hyun Soo Ko , Seung Hee Han , Jae Hoon Chung , Bin Chul Ihm , Moon Il Lee
IPC: H04B7/216 , H04B7/04 , H04B7/06 , H04W4/00 , H04W72/04 , H04W72/08 , H04W52/32 , H04W72/02 , H04L5/00 , H04L27/26 , H04L25/02 , H04J13/00 , H04B7/0413
Abstract: A method for transmitting a channel status information reference signals (CSI-RSs) for a maximum of eight antenna ports includes mapping the CSI-RSs for a maximum of eight antenna ports onto a data region of a downlink subframe having a normal cyclic prefix (CP) configuration according to a predetermined pattern; and transmitting the downlink subframe to which the CSI-RSs mapped, wherein the predetermined pattern defines the CSI-RSs to be mapped onto two OFDM symbols of the data region in the downlink subframe and mapped to at least one of four subcarrier positions in each of the two OFDM symbols, and wherein the four subcarrier positions defined by the predetermined pattern may be two consecutive subcarrier positions and two other consecutive subcarrier positions spaced apart by four subcarriers.
-
公开(公告)号：US11218194B2
公开(公告)日：2022-01-04
申请号：US16774993
申请日：2020-01-28
Applicant: LG ELECTRONICS INC.
Inventor： Hyun Soo Ko , Seung Hee Han , Ja Ho Koo , Jae Hoon Chung , Bin Chul Ihm , Moon Il Lee
Abstract: A method for transmitting a reference signal in a multi-antenna system is provided. The method includes: selecting at least one orthogonal frequency division multiplexing (OFDM) symbol in a subframe containing a plurality of OFDM symbols; allocating a channel quality indication reference signal (CQI RS) capable of measuring a channel state for each of a plurality of antennas to the selected at least one OFDM symbol; and transmitting the CQI RS, wherein the CQI RS is allocated to an OFDM symbol which does not overlap with an OFDM symbol to which a common reference signal to be transmitted to all user equipments in a cell or a dedicated reference signal to be transmitted to a specific user equipment in the cell is allocated.
-
公开(公告)号：USRE48442E1
公开(公告)日：2021-02-16
申请号：US16362201
申请日：2019-03-22
Applicant: LG Electronics Inc.
Inventor： Jae Hoon Chung , Hyun Soo Ko , Seung Hee Han , Moon Il Lee
IPC: H04L1/06 , H04L1/18 , H04L5/00 , H04B7/04 , H04B7/0413 , H04W72/04 , H04L25/03 , H04W28/02 , H04L1/00 , H04B7/0456
Abstract: A method of data transmission includes determining the number of layers, generating mapping symbols by mapping modulation symbols for a first codeword and modulation symbols for a second codeword to each layer, and transmitting the mapping symbols through a plurality of antennas. At least one of the first codeword and the second codeword is mapped to at least 3 layers and the number of layers is larger than 3.
-
公开(公告)号：USRE48016E1
公开(公告)日：2020-05-26
申请号：US15995709
申请日：2018-06-01
Applicant: LG ELECTRONICS INC.
Inventor： Hyun Soo Ko , Seung Hee Han , Jae Hoon Chung , Bin Chul Ihm , Moon Il Lee
IPC: H04B7/216 , H04B7/06 , H04B7/04 , H04J13/00 , H04W72/04 , H04W4/00 , H04W72/08 , H04W52/32 , H04W72/02 , H04L5/00 , H04L25/02 , H04L27/26 , H04B7/0413
Abstract: A method for transmitting a channel status information reference signals (CSI-RSs) for a maximum of eight antenna ports includes mapping the CSI-RSs for a maximum of eight antenna ports onto a data region of a downlink subframe having a normal cyclic prefix (CP) configuration according to a predetermined pattern; and transmitting the downlink subframe to which the CSI-RSs mapped, wherein the predetermined pattern defines the CSI-RSs to be mapped onto two OFDM symbols of the data region in the downlink subframe and mapped to at least one of four subcarrier positions in each of the two OFDM symbols, and wherein the four subcarrier positions defined by the predetermined pattern may be two consecutive subcarrier positions and two other consecutive subcarrier positions spaced apart by four subcarriers.
-
公开(公告)号：US10432377B2
公开(公告)日：2019-10-01
申请号：US15660633
申请日：2017-07-26
Applicant: LG Electronics Inc.
Inventor： Moon Il Lee , Jae Hoon Chung , Hyun Soo Ko , Seung Hee Han
IPC: H04L5/00 , H04L27/26 , H04L25/02 , H04J13/16 , H04J13/00 , H04J13/18 , H04W72/04 , H04J11/00 , H04B7/0413 , H04W88/06
Abstract: The present invention relates to a method and apparatus which transmit/receive at least one demodulation reference signal by using a CDM group and/or a transmission rank of a user device that have been used to transmit the at least one demodulation reference signal for the user device, an OCC that has been used to spread the demodulation reference signal, etc. Also, the present invention relates to a method and apparatus which change an antenna port for transmitting the demodulation reference signal by using NDI for a disabled transmission block.
-
Patent Agency Ranking
6.再颁专利公开(公告)号：USRE47295E1
公开(公告)日：2019-03-12
申请号：US14473911
申请日：2014-08-29
Applicant: LG Electronics Inc.
Inventor： So Yeon Kim , Jae Hoon Chung , Hyun Soo Ko , Seung Hee Han , Moon Il Lee
IPC: H04L5/00
Abstract: A method for efficiently transmitting and receiving a control channel and/or a data channel in a radio communication system using multiple carriers is described. The embodiments of the present invention provide various multi-carrier system structures and various methods for setting a reference carrier in a multi-carrier system. The embodiments of the present invention also provide methods for efficiently transmitting control channels using a coordination field.
-
公开(公告)号：US10181885B2
公开(公告)日：2019-01-15
申请号：US15676543
申请日：2017-08-14
Applicant: LG ELECTRONICS INC.
Inventor： Hyun Soo Ko , Jae Hoon Chung , Seung Hee Han , Moon Il Lee
Abstract: The present invention relates to a method for transmitting, by a base station, a downlink signal using a plurality of transmission antennas comprises the steps of: applying a precoding matrix indicated by the PMI, received from a terminal, in a codebook to a plurality of layers, and transmitting the precoded signal to the terminal through a plurality of transmission antennas. Among precoding matrices included in the codebook, a precoding matrix for even number transmission layers can be a 2×2 matrix containing four matrices (W1s), the matrix (W1) having rows of a number of transmission antennas and columns of half the number of transmission layers, the first and second columns of the first row in the 2×2 matrix being multiplied by 1, the first column of the second row being multiplied by coefficient “a” of a phase, and the first column of the second row being multiplied by “−a”.
-
公开(公告)号：US20180254873A1
公开(公告)日：2018-09-06
申请号：US15970551
申请日：2018-05-03
Applicant: LG ELECTRONICS INC.
Inventor： Yeong Hyeon KWON , Seung Hee Han , Hyun Woo Lee , Jae Hoon Chung , Jin Sam Kwak , Dong Cheol Kim , Min Seok Noh
IPC: H04L5/00
CPC classification number: H04L5/0053 , H04L5/0007 , H04L5/0091 , H04L27/261 , H04W72/0406 , H04W72/0413 , H04W72/1263 , H04W74/0866
Abstract: A method and apparatus for requesting uplink resources in a wireless communication system is provided. A user equipment determines whether a scheduling request for requesting uplink resources is triggered. If the scheduling request is triggered, the user equipment transmits a first set of frequency domain sequences and a second set of frequency domain sequences in a subframe.
-
公开(公告)号：US10057003B2
公开(公告)日：2018-08-21
申请号：US15410439
申请日：2017-01-19
Applicant: LG ELECTRONICS INC.
Inventor： Seung Hee Han , Min Seok Noh , Yeong Hyeon Kwon , Hyun Woo Lee , Dong Cheol Kim , Jin Sam Kwak
CPC classification number: H04J11/0073 , H04J13/0062 , H04J2011/0096 , H04L5/0007 , H04L5/0048 , H04L5/0066 , H04L7/0087 , H04L25/0226 , H04L25/0228 , H04L27/2605 , H04L27/2613 , H04L27/2614 , H04L27/2615 , H04L27/2647 , H04L27/2657 , H04W56/0015
Abstract: A method and apparatus for transmitting or detecting primary synchronization signal. The receiver receives primary synchronization signal from a transmitter, and detects the sequence used in the received primary synchronization signal by using three root indexes. Here, the primary synchronization signal is generated by using a Zadoff-Chu sequence having one of the three root indexes. The three root indexes comprise a first index and a second index, and a sum of the first index and the second index corresponds to the length of the Zadoff-Chu sequence.
-
公开(公告)号：US09942889B2
公开(公告)日：2018-04-10
申请号：US14996392
申请日：2016-01-15
Applicant: LG ELECTRONICS INC.
Inventor： Min Seok Noh , Hyun Soo Ko , Seung Hee Han , Jae Hoon Chung , Moon Il Lee
CPC classification number: H04W72/042 , H04B7/0613 , H04L5/0023 , H04L5/0048 , H04L5/0053 , H04L27/2605 , H04L27/2607 , H04W72/0406 , H04W72/0466
Abstract: A method is provided for transmitting, by a user equipment (UE), a demodulation reference signal (DMRS) in a wireless communication system. A first DMRS sequence, which is associated with a first layer, and a second DMRS sequence, which is associated with a second layer, are transmitted to a base station. A first orthogonal cover code (OCC) is applied to the first and second DMRS sequences. A third DMRS sequence, which is associated with a third layer, and a fourth DMRS sequence, which is associated with a fourth layer, are transmitted to the base station. A second OCC is applied to the third and fourth DMRS sequences.
-
-
-
-
-
-
-
-
-
Search Results
291
records
(took 0.037 seconds)
