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    • 1. 发明申请
    • LOCAL WIRELESS SIGNAL TRANSMITTING/RECEIVING APPARATUS AND METHOD USING DIGITAL RF PROCESSING TECHNOLOGY
    • 本地无线信号发射/接收装置和使用数字射频处理技术的方法
    • WO2009145516A2
    • 2009-12-03
    • PCT/KR2009002643
    • 2009-05-19
    • SK TELECOM CO LTDSHIM WOO JINKIM YOUNG WOOYU JAE HWANGHONG SUNG CHEOLOH SE HYUN
    • SHIM WOO JINKIM YOUNG WOOYU JAE HWANGHONG SUNG CHEOLOH SE HYUN
    • H04B1/40H04B7/24
    • H04L27/2032H04L27/223H04L27/361
    • The present invention relates to a local wireless signal transmitting/receiving apparatus and method using digital radio frequency (RF) processing technology. When the local wireless signal transmitting/receiving apparatus has generated a local wireless signal to be transmitted, has diffused the frequency of the generated local wireless signal and thereby generats a baseband signal, it converts the generated baseband signal of the local wireless signal into phase information, converts the phase information into an RF signal by means of a polar modulator, and transmits the RF signal. Also, when the local wireless signal transmitting/receiving apparatus has received an external RF signal, it detects an intermediate frequency (IF) signal, detects a zero-crossing signal from the detected IF signal, then converts the detected zero-crossing signal into a digital signal, converts the converted digital signal into a local wireless signal which is a processable signal, and processes the local wireless signal. According to the present invention, AD/DA converters are replaced with a polar modulator and a ZXD, thus making it possible to implement a low-power design for a local wireless signal transmitting/receiving apparatus, to reduce chip size and to save costs.
    • 本发明涉及使用数字射频(RF)处理技术的本地无线信号发射/接收装置和方法。 当本地无线信号发送/接收装置产生要发送的本地无线信号时,扩散了所产生的本地无线信号的频率,从而产生基带信号,将本地无线信号的生成的基带信号转换为相位信息 ,通过极性调制器将相位信息转换成RF信号,并发送RF信号。 此外,当本地无线信号发送/接收装置已经接收到外部RF信号时,它检测中频(IF)信号,从检测到的IF信号中检测过零信号,然后将检测到的过零信号转换为 数字信号,将转换的数字信号转换成可处理信号的本地无线信号,并处理本地无线信号。 根据本发明,将AD / DA转换器替换为极性调制器和ZXD,从而可以实现本地无线信号发送/接收装置的低功率设计,以减少芯片尺寸并节省成本。