Patent ID: 8774859

Claim:
An apparatus for enhancing Radiated Spurious Emission (RSE) performance of a multi-standby terminal, the apparatus comprising: a first communication module comprising: an antenna for transmitting and receiving 2 nd Generation (2G) and 3 rd Generation (3G) band signals; a Radio Frequency (RF) switch, connected to the antenna at one end, for switching between the 2G and 3G signals; a 2G communication unit, connected to the RF switch, for transmitting and receiving the 2G band signals; a 3G communication unit, connected to the RF switch, for transmitting and receiving the 3G band signals; and a first transceiver, connected to the 2G and 3G communication units, for modulating and up-converting signals to be transmitted on the 2G and 3G bands, and for down-converting and demodulating signals received on the 2G and 3G bands, wherein the 2G communication unit comprises: a first power amplifier module, connected to the first transceiver, for amplifying power of a transmission signal of the 2G band; a first filter for filtering out a received signal of the 2G band; and a first antenna switch module for switching a connection to the RF switch between the first power amplifier module in a transmission period of the 2G communication unit and the first filter in a reception period of the 2G communication unit; and a second communication module that transmits and receives at least one of the 2G and 3G band signals, wherein the multi-standby terminal supports a multi-standby mode in which the multi-standby terminal for simultaneously transmitting and receiving the 2G and the 3G band signals via at least two networks.