公开(公告)号：US20150043620A1

公开(公告)日：2015-02-12

申请号：US14376582

申请日：2013-03-06

Applicant: HUIZHOU TCL MOBILE COMMUNICATION CO., LTD.

Inventor： Jian Bai ,  Lian Zhang ,  Shengyin Xie ,  Xin Jin

IPC: H04M1/02 ,  H03G3/30 ,  H04B1/707

CPC classification number: H04M1/026 ,  H03G3/3042 ,  H04B1/0053 ,  H04B1/0064 ,  H04B1/0067 ,  H04B1/0475 ,  H04B1/18 ,  H04B1/70712

Abstract: A mobile communication terminal is provided, which comprises: a first antenna, configured to receive a high-band radio frequency (RF) signal from the outside; a wireless transceiver, configured to acquire the high-band RF signal from the first antenna and generate a first base-band signal; a base-band processor, configured to acquire the first base-band signal from the wireless transceiver and modulate the first base-band signal, and further generate a second base-band signal and a third base-band signal; the wireless transceiver being further configured to convert the second base-band signal into a to-be-transmitted high-band RF signal and convert the third base-band signal into a to-be-transmitted low-band RF signal; a second antenna, configured to acquire and transmit the to-be-transmitted high-band RF signal and the to-be-transmitted low-band RF signal; wherein the second antenna is further configured to receive a low-band RF signal from the outside. In the aforesaid way, noises caused in the receiving frequency band by the transmitting path can be reduced, and the power consumption and the heat generation amount of the system can be further decreased. Meanwhile, the radio frequency architecture is simplified, and a low-cost and more compact space can be obtained.

Abstract translation: 提供了一种移动通信终端，其包括：第一天线，被配置为从外部接收高频带射频（RF）信号; 无线收发器，被配置为从所述第一天线获取所述高频带RF信号并产生第一基带信号; 基带处理器，被配置为从无线收发器获取第一基带信号并调制第一基带信号，并进一步产生第二基带信号和第三基带信号; 所述无线收发器还被配置为将所述第二基带信号转换为待发送的高频带RF信号，并将所述第三基带信号转换为待发送的低频带RF信号; 第二天线，被配置为获取并发送待发送的高频带RF信号和待发送的低频带RF信号; 其中所述第二天线还被配置为从外部接收低频RF信号。 以上述方式，可以减少由发送路径引起的接收频带的噪声，能够进一步降低系统的功耗和发热量。 同时，射频架构简化，可以获得低成本，更紧凑的空间。