Radio frequency transmitting device of mobile radio communication base station system in code division multiple access system
    3.
    发明授权
    Radio frequency transmitting device of mobile radio communication base station system in code division multiple access system 失效
    移动无线通信基站系统在码分多址系统中的射频发射装置

    公开(公告)号:US07058037B1

    公开(公告)日:2006-06-06

    申请号:US09658696

    申请日:2000-09-08

    申请人: Sung Bae Moon

    发明人: Sung Bae Moon

    IPC分类号: H04B7/216

    CPC分类号: H04B1/707 H04B1/04

    摘要: Disclosed is an RF transmitting device of a mobile radio communication base station system in a CDMA system capable of digital-modulating baseband signals which are converted into band spread signals by using the same path which three frequency assignment frequency signals have for an RF in a multi-carrier mobile radio communication system supporting three frequency assignment, digital-coupling the modulated signals, and up-converting the digital-coupled signal into an IF signal and an RF signal in a sequential order, thereby transmitting the up-converted signal.

    摘要翻译: 公开了一种CDMA系统中的移动无线通信基站系统的RF发送装置,其能够通过使用三个频率分配频率信号对多个RF中的RF进行相同的路径将基带信号进行数字调制,将其转换成带扩展信号 载波移动无线电通信系统支持三个频率分配,数字耦合调制信号,并将数字耦合信号上变频为IF信号和RF信号,从而传输上变频信号。

    Backward closed loop power control apparatus for mobile communication system and method using the same
    5.
    发明授权
    Backward closed loop power control apparatus for mobile communication system and method using the same 有权
    用于移动通信系统的向后闭环功率控制装置及其使用方法

    公开(公告)号:US06625465B1

    公开(公告)日:2003-09-23

    申请号:US09660023

    申请日:2000-09-12

    IPC分类号: H04B100

    CPC分类号: H04W52/24

    摘要: A backward closed loop power control apparatus for a mobile communication system is disclosed. The apparatus includes a demodulation and PCB extraction unit for receiving a communication frame transmitted from a base station, demodulating the received communication frame and extracting a PCB having an allocated transmission power up or down instruction information, a CRC checking unit for checking a CRC with respect to the communication frame transmitted from the base station, a control unit for outputting a transmission power up or down control signal in accordance with a PCB extracted by the demodulation and PCB extraction unit and a CRC result value checked by the CRC checking unit, and a power adjusting unit for increasing the transmission power of the mobile station to the maximum value of the transmission power and decreasing the transmission power of the mobile station to the minimum value of the transmission power in accordance with a transmission power up or down control signal outputted from the controller, for thereby implementing an economic use of a power of a mobile station by judging a propagation environment of a forward link and backward link based on a CRC(Cyclic Redundancy check) in a mobile station of a mobile communication system which adapts a CDMA method and dynamically performing a backward closed loop power control.

    摘要翻译: 公开了一种用于移动通信系统的反向闭环功率控制装置。 该装置包括:解调和PCB提取单元,用于接收从基站发送的通信帧,解调所接收的通信帧并提取具有分配的发送功率的上行或下行指令信息的PCB; CRC校验单元,用于相对于CRC校验CRC 发送到从基站发送的通信帧,控制单元,用于根据由解调和PCB提取单元提取的PCB输出发送功率上升或下降控制信号以及由CRC校验单元检查的CRC结果值,以及 功率调整单元,用于根据从...输出的发送功率上升或下降控制信号将移动台的发送功率提高到发送功率的最大值,并将移动台的发送功率降低到发送功率的最小值 控制器,从而实现对动员的权力的经济使用 e站,其基于适应CDMA方法并动态执行反向闭环功率控制的移动通信系统的移动台中的CRC(循环冗余校验)来判断前向链路和后向链路的传播环境。