公开(公告)号：KR100796010B1

公开(公告)日：2008-01-21

申请号：KR1020060104432

申请日：2006-10-26

Applicant: 한국전자통신연구원 ,  삼성전자주식회사

Inventor： 권헌국 ,  김준형 ,  김성민 ,  고윤수 ,  정재호 ,  이광천

IPC: H04B1/40 ,  H04B1/50 ,  H04B1/52

CPC classification number: H04B1/406 ,  H04B1/52 ,  H04B1/54

Abstract: A wireless transceiving system for supporting dual modes is provided to support a TDD(Time Division Duplex) mode in a random frequency band adjacent to a lower frequency band and an upper frequency band or a lower frequency band and an upper frequency band of an FDD(Frequency Division Duplex) mode, thereby offering simplification of a system structure. The first selection switch(301) determines a transceiving path of a signal according to a communication mode. The first mixer(306) converts a transmission signal based on the first frequency. A duplexer(302) emits the converted transmission signal to an antenna, and receives a receiving signal received through the antenna in the first communication mode. A BPF(Band Pass Filter)(303) receives the receiving signal in the second communication mode to extract a frequency signal of a set band. The second selection switch(304) selects one signal of the receiving signal received through the duplexer(302) and the receiving signal received through the first selection switch(301), and outputs the selected signal. The second mixer(307) converts the receiving signal outputted from the second switch(304) based on the first frequency or the second frequency, and outputs the converted signal.

Abstract translation: 提供了一种用于支持双模的无线收发系统，以支持与FDD的较低频带和较高频带或较低频带和较低频带相邻的随机频带中的TDD（时分双工）模式（ 频分双工）模式，从而简化系统结构。 第一选择开关（301）根据通信模式确定信号的收发路径。 第一混频器（306）基于第一频率转换发送信号。 双工器（302）将转换的发送信号发送到天线，并且以第一通信模式接收通过天线接收的接收信号。 BPF（带通滤波器）（303）以第二通信模式接收接收信号，提取设定频带的频率信号。 第二选择开关（304）选择通过双工器（302）接收的接收信号和通过第一选择开关（301）接收的接收信号的一个信号，并输出所选择的信号。 第二混频器（307）基于第一频率或第二频率转换从第二开关（304）输出的接收信号，并输出转换的信号。