Structure of mobile terminal operating in a mobile communication system supporting device to device communication and operation method therefor

摘要

A mobile terminal in a mobile communication system supporting device to device (D2D) communication, and a method for operating the mobile terminal are provided. The terminal includes a first radio frequency (RF) chain configured to transmit a mobile communication signal and a second RF chain configured to receive a mobile communication signal, for mobile communication with a base station, a switching unit including a plurality of switches configured to establish transmission and reception paths in the first and second RF chains, and a controller configured to control switching of the switching unit to establish transmission and reception paths of a D2D communication signal for D2D communication by combining a part of the first RF chain with a part of the second RF chain. The combination of the parts of the first and second RF chains is different according to a D2D communication frequency band.

主权项

1. A mobile terminal supporting device to device (D2D) communication in a mobile communication system, the mobile terminal comprising:
a duplexer connected to an antenna unit; a first radio frequency (RF) chain comprising a digital-to-analog converter, a first mixer, and a power amplifier; a second RF chain comprising an analog-to-digital converter, a second mixer, and a low noise amplifier; a first switch configured to connect the first mixer with the power amplifier or the low noise amplifier; a second switch configured to connect the low noise amplifier with a first band pass filter of the duplexer or a second band pass filter of the duplexer; a third switch configured to connect the analog-to-digital converter with the first mixer or the second mixer; and a controller configured to control switching a plurality of the first switch, the second switch, and the third switch based on a D2D communication mode or a mobile communication mode.