公开(公告)号：US20230137019A1

公开(公告)日：2023-05-04

申请号：US17906466

申请日：2020-05-22

Applicant: LG ELECTRONICS INC.

Inventor： Jeongin KIM ,  Dongsun LEE

IPC: H04W56/00

Abstract: A control method of a distributed antenna system (DAS) including a baseband modem, according to one embodiment, may comprise the steps of: calculating frequency offsets for each RF path in the baseband modem; controlling an oscillator clock of a central unit (CU) on the basis of an average of the frequency offsets; determining an operation mode of the baseband modem; and controlling oscillator clocks of each distributed unit (DU) on the basis of the frequency offsets for each RF path when the operation mode of the baseband modem is a tracking mode.

公开(公告)号：US20230246666A1

公开(公告)日：2023-08-03

申请号：US18024668

申请日：2020-09-03

Applicant: LG Electronics Inc.

Inventor： Sungho PARK ,  Kwansoo KIM ,  Sunam KIM ,  Jeongin KIM ,  Jaehwan KIM ,  Sungryong HONG

IPC: H04B1/40 ,  H03M7/16

CPC classification number: H04B1/40 ,  H03M7/16

Abstract: A wireless signal digital conversion device according to an embodiment of the present disclosure comprises: a plurality of RF signal processing units for receiving wireless signals, and adjusting the voltage levels of the wireless signals on the basis of automatic gain values; a plurality of unit ADCs for receiving in-phase signals and quadrature phase signals of the RF signal processing units, and performing analog-to-digital conversion on the basis of different differential reference voltages; an encoder unit for generating binary data having less bits than binary data outputted from the unit ADCs on the basis of the binary data outputted from the unit ADCs; and an automatic gain control unit for generating automatic gain values on the basis of the output of a spatial ADC. A terminal of the present disclosure can be linked to an artificial intelligence module, a drone (unmanned aerial vehicle (UAV)), a robot, an augmented reality (AR) device, a virtual reality (VR) device, a device related to 6G services, and the like.

公开(公告)号：US20210229698A1

公开(公告)日：2021-07-29

申请号：US17155667

申请日：2021-01-22

Applicant: LG ELECTRONICS INC.

Inventor： Jeongin KIM ,  Dongsun LEE ,  Sungryong HONG

IPC: B60W60/00 ,  H04B7/0413 ,  H04B7/26 ,  H04W4/40

Abstract: An autonomous vehicle and a method for controlling the same are disclosed. A method for controlling an autonomous vehicle including a baseband modem and a plurality of distributed antennas includes applying an initial clock of the baseband modem to clocks of the plurality of distributed antennas, receiving base station data from an external base station via the plurality of distributed antennas to which the initial clock is applied, and synchronizing a clock of the baseband modem with a clock of the base station based on the base station data, and thus can achieve low cost design using a data clock recovery. The autonomous vehicle, a user terminal, and a server can be associated with an artificial intelligence module, a unmanned aerial vehicle (UAV), a robot, an augmented reality (AR) device, a virtual reality (VR) device, devices related to 3G, 4G, 5G and/6G services.

公开(公告)号：US20230246692A1

公开(公告)日：2023-08-03

申请号：US18044334

申请日：2021-11-01

Applicant: LG ELECTRONICS INC.

Inventor： Jeongin KIM ,  Dongsun LEE

IPC: H04B7/06 ,  H04B17/18 ,  H04B7/022

CPC classification number: H04B7/0632 ,  H04B17/18 ,  H04B7/022

Abstract: A communication device comprises: a plurality of distributed units (DUs), each including an antenna; and a central unit (CU) which is arranged to be spaced from each of the plurality of DUs, and which is connected through each of the plurality of DUs and a plurality of DU links. The central unit measures the channel quality of each of the plurality of DU links, and the central unit can perform control so that power is cut off to the DU corresponding to the DU link if it is determined that the DU link is in an abnormal status during the operation time of a timer (TDU_link) associated with the connection to the DU link, and perform control so that power is supplied to the DU corresponding to the DU link if it is determined that the DU link has returned to a normal status.

公开(公告)号：US20220394508A1

公开(公告)日：2022-12-08

申请号：US17775878

申请日：2020-11-11

Applicant: LG ELECTRONICS INC.

Inventor： Jeongin KIM ,  Dongsun LEE ,  Sungryong HONG

IPC: H04W24/02 ,  H04B7/04 ,  H04W52/02

Abstract: An embodiment relates to a vehicular distributed antenna system operating in a wireless communication system, the vehicular distributed antenna system comprising: a plurality of distributed units including RF antennas; and a central unit for controlling the plurality of distributed units, wherein, in a case of receiving a configuration of a power sleep mode from the central unit, the plurality of distributed units store final configuration parameter information; and in a case of receiving a configuration of a power activation mode from the central unit, the plurality of distribution units use the stored final configuration parameter information when a storage parameter use mode is configured, and receive new configuration parameter information when the storage parameter use mode is not configured.