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21.发明申请公开(公告)号：US20210352690A1
公开(公告)日：2021-11-11
申请号：US17279936
申请日：2019-09-27
Applicant: LG ELECTRONICS INC.
Inventor： Seokmin SHIN , Changhwan PARK , Joonkui AHN , Seunggye HWANG
Abstract: Provided is a method for receiving, by a user equipment (UE), a feedback from a base station in a wireless communication system supporting narrowband (NB)-internet of things (IoT). Specifically, the UE receives, from the base station, a preconfigured uplink (UL) resource (PUR) configuration via RRC signalling, transmits, to the base station, uplink data on the PUR when the UE is in an idle mode, and receive, from the base station, the feedback for the uplink data. The feedback is configured to be received on an NPDCCH after a specific time has passed from the PUR transmission.
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22.发明申请公开(公告)号：US20210336819A1
公开(公告)日：2021-10-28
申请号：US17266424
申请日：2019-08-09
Applicant: LG ELECTRONICS INC.
Inventor： Jaehyung KIM , Seonwook KIM , Changhwan PARK , Seokmin SHIN , Joonkui AHN , Suckchel YANG , Seunggye HWANG
Abstract: Disclosed are a method for channel estimation in a wireless communication system, and a device therefor. Particularly, the method for estimating a channel by a terminal in a wireless communication comprises the steps for: receiving, from a base station, configuration information for channel estimation, the configuration information comprising relationship information related to the relationship between a cell-specific reference signal (CRS) and a demodulation-reference signal (DM-RS); receiving the CRS from the base station; receiving, from the base station, on a specific channel, the DM-RS and machine type communication (MTC) control information; estimating the specific channel by using the CRS and DM-RS, on the basis of the relationship information; and decoding the MTC control information via the estimated specific channel, wherein the relationship information comprises information about a pre-coding relationship between the CRS and DM-RS, and power ratio information of the CRS with respect to the DM-RS, and the power ratio information is information related to the power ratio between a CRS port and DM-RS port for an idle mode.
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公开(公告)号：US20210329591A1
公开(公告)日：2021-10-21
申请号：US17267472
申请日：2019-08-09
Applicant: LG ELECTRONICS INC.
Inventor： Seunggye HWANG , Changhwan PARK , Joonkui AHN
Abstract: Disclosed in the present invention are a method for operating a terminal and a base station in a wireless communication system supporting a narrowband Internet of Things (NB-IoT), and an apparatus supporting same. According to one embodiment applicable to the present invention, a terminal determines a time interval for receiving an NRS in a non-anchor carrier that is used for paging purposes, and receives the NRS in the time interval. The time interval may be determined on the basis of a specific PO among a plurality of POs related to the terminal.
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24.发明申请公开(公告)号：US20210306182A1
公开(公告)日：2021-09-30
申请号：US17266949
申请日：2019-08-08
Applicant: LG ELECTRONICS INC.
Inventor： Jaehyung KIM , Seonwook KIM , Changhwan PARK , Seokmin SHIN , Joonkui AHN , Suckchel YANG , Seunggye HWANG
Abstract: The present specification provides a method for estimating a channel by a terminal in a wireless communication system supporting machine-type communication (MTC). Particularly, the terminal receives, from a base station, configuration information for receiving a cell-specific reference signal (CRS) and a dedicated demodulation reference signal (DMRS), and receives the CRS on the basis of the configuration information. The terminal then receives the DMRS and control information by means of an MTC physical downlink control channel (MPDCCH), performs channel estimation for the MPDCCH on the basis of the DMRS and the CRS, and demodulates the control information on the basis of the channel estimation, wherein one precoder among a plurality of candidate precoders applied to the CRS is applied to the DMRS.
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公开(公告)号：US20210211342A1
公开(公告)日：2021-07-08
申请号：US17183780
申请日：2021-02-24
Applicant: LG Electronics Inc.
Inventor： Seunggye HWANG , Joonkui AHN , Changhwan PARK , Suckchel YANG , Seokmin SHIN
Abstract: One disclosure of the present specification proposes a method for receiving a Narrowband Reference Signal (NRS) by a Narrow band Internet of Things (NB-IoT) device. The method may comprise receiving the NRS on at least one or more orthogonal frequency division multiplexing (OFDM) symbols. The one or more OFDM symbols are in a time division duplex (TDD) subframe. If the TDD subframe corresponds to a TDD special subframe, the one or more OFDM symbols for receiving the NRS is determined based on which TDD special subframe configuration index among a plurality of TDD special configuration indexes is used by the TDD special subframe.
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Patent Agency Ranking
公开(公告)号：US20210105832A1
公开(公告)日：2021-04-08
申请号：US17124150
申请日：2020-12-16
Applicant: LG ELECTRONICS INC.
Inventor： Seokmin SHIN , Changhwan PARK , Jaehyung KIM , Joonkui AHN , Suckchel YANG , Seunggye HWANG
Abstract: This specification provides a method for transmitting an NPRACH preamble in a wireless communication system supporting TDD. More specifically, the method performed by the UE includes: receiving, from a base station, NPRACH configuration information including control information for a repetition number of NPRACH preambles including symbol groups through a higher layer signaling; and transmitting, to the base station, the NPRACH preamble repeatedly through frequency hopping of a symbol group based on the NPRACH configuration information, in which a frequency location of the symbol group is determined based on a first parameter related to a start subcarrier and a second parameter related to the frequency hopping.
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公开(公告)号：US20210045133A1
公开(公告)日：2021-02-11
申请号：US17077731
申请日：2020-10-22
Applicant: LG Electronics Inc.
Inventor： Seunggye HWANG , Joonkui AHN , Suckchel YANG , Changhwan PARK , Seonwook KIM
Abstract: One disclosure of the present application provides a method for a narrowband (NB) wireless device to determine whether or not to transmit a scheduling request (SR). The method may comprise a step of determining whether or not to transmit an SR by using a resource for the transmission of a hybrid automatic retransmit request (HARQ) acknowledgement/negative acknowledgement (ACK/NACK) signal. The step of determination may be performed if one or more HARQ processes are run. The resource for the HARQ ACK/NACK signal may include a narrowband physical uplink shared channel (NPUSCH).
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28.发明申请公开(公告)号：US20200221481A1
公开(公告)日：2020-07-09
申请号：US16638032
申请日：2018-08-10
Applicant: LG Electronics Inc.
Inventor： Changhwan PARK , Seonwook KIM , Seokmin SHIN , Joonkui AHN , Suckchel YANG , Seunggye HWANG
Abstract: The present invention relates to a wireless communication system, and specifically, to a method and a device therefor, the method comprising the steps of: repeatedly receiving a PDCCH including scheduling information, wherein the scheduling information includes time delay information; and repeatedly transmitting a PUSCH indicated by the scheduling information, after a time point indicated by the time delay information from the time point when the repeated receiving of the PDCCH ends, wherein a time resource in a time region includes a fixed DL time unit having a transmission direction fixed to a DL, and a time resource includes a fixed uplink (UL) time unit having a transmission direction fixed to a UL, and a floating time unit having a variable transmission direction, and the time point indicated by the time delay information is calculated on the basis of the fixed UL time unit.
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公开(公告)号：US20200068619A1
公开(公告)日：2020-02-27
申请号：US16610597
申请日：2018-05-04
Applicant: LG Electronics Inc.
Inventor： Jaehyung KIM , Joonkui AHN , Suckchel YANG , Changhwan PARK , Seokmin SHIN , Seunggye HWANG
Abstract: The present invention relates to a method for performing a random access procedure in a wireless communication system and a device therefor, the method comprising a step for receiving NPRACH configuration information and a step for transmitting a random access preamble on the basis of the NPRACH configuration information, wherein the NPRACH configuration information includes information indicating whether only a first preamble format is supported, only a second preamble format is supported, or both the first preamble format and the second preamble format are supported. If both the first preamble format and the second preamble format are supported according to the NPRACH configuration information and a specific condition is met, the random access preamble is transmitted using the first preamble format, and, if both the first preamble format and the second preamble format are supported according to the NPRACH configuration information and the specific condition is not met, the random access preamble is transmitted using the second preamble format.
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公开(公告)号：US20200045706A1
公开(公告)日：2020-02-06
申请号：US16494127
申请日：2018-03-15
Applicant: LG ELECTRONICS INC.
Inventor： Seokmin SHIN , Jaehyung KIM , Joonkui AHN , Seunggye HWANG
Abstract: Disclosed are a method for transmitting/receiving data in a wireless communication system supporting NarrowBand-Internet of Things (NB-IoT) and a device therefor. Specifically, a method for receiving data by a terminal may include: receiving, from a base station, Semi-Persistent Scheduling (SPS) configuration information for SPS; receiving, from the base station, an SPS control channel for delivering control information representing activation of the SPS; and receiving, from the base station, SPS data channels in specific subframes scheduled according to the SPS configuration information, in which search spaces related to the remaining SPS data channels other than a first SPS data channel among the received SPS data channels may be configured not to be monitored by the UE.
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