Lg Electronics Inc.

Jeongin Kim

Dongsun Lee

Sungryong Hong

Sungho Park

Sunam Kim

Jaehwan Kim

Kwansoo Kim

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.

Vehicular distributed antenna system operating in wireless communication system and method for operating same

A wireless signal digital conversion device includes: a plurality of RF signal processing units for receiving wireless signals, and adjusting the voltage levels of the wireless signals based on 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 based on different differential reference voltages; an encoder unit for generating binary data having less bits than binary data outputted from the unit ADCs based on the binary data outputted from the unit ADCs; and an automatic gain control unit for generating automatic gain values based on the output of a spatial ADC. A terminal 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 toG services, and the like.

Wireless signal digital conversion device

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.

Autonomous vehicle and method for controlling the same

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.

Autonomous vehicle and control method thereof

A communication device includes 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.

Growing community of inventors

Seoul, South Korea

Jeongin Kim