Patent ID: 11902925
Assignee: LG ELECTRONICS INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H  B | IPC H

Claim 14:
15. An autonomous vehicle comprises:
a processor for controlling functions of the vehicle;
a memory coupled to the processor, for storing data for control of the vehicle; and
a communication device coupled to the processor, for sending and receiving data for control of the vehicle,
the communication device including a central unit (CU) and a plurality of distributed units operatively coupled to the central unit (CU),
wherein the processor calculates frequency offsets for each RF path in the communication device, controls an oscillator clock of the central unit (CU) on the basis of an average of the frequency offsets, controls 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, and transmits the oscillator clock of the central unit (CU) to each distributed unit (DU) when the operation mode of the baseband modem is an acquisition mode,
wherein the processor individually controls oscillator clock errors of each distributed unit (DU) to have different values, and each distributed unit (DU) provides an individually controlled oscillator clock as a reference clock to the RF device of the DU, and provides a radio signal from the base station to the processor via a DU-CU interface through the RF device.