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    • 2. 发明授权
    • Method and apparatus for transmitting overhead information
    • 用于发送开销信息的方法和装置
    • US08045586B2
    • 2011-10-25
    • US11958043
    • 2007-12-17
    • Jianbin HuangTianxiang WangZhiyong QiuGuixue ZhaoFeng ZhangJun FengDejun LiYongjun TuXiaobin Song
    • Jianbin HuangTianxiang WangZhiyong QiuGuixue ZhaoFeng ZhangJun FengDejun LiYongjun TuXiaobin Song
    • H04J3/24
    • H04J3/1611H04J2203/0035H04W52/58
    • A method provided by the present invention for transmitting overhead information, includes dividing and reforming overhead information into at least two overhead parts, inserting the at least two overhead parts into overhead bytes of at least two corresponding data frames, and transmitting the at least two overhead parts via the at least two data frames which are microwave frames. Overhead information transmitting apparatus and overhead information receiving apparatus are also provided by the present invention. With the method and apparatus of the present invention, the channel bandwidth resources occupied by the overhead bytes or each microwave frame are greatly reduced. If the saved channel bandwidth is used for performing the error correction code on the transmitted information, the code gain is improved and the sensitivity requirement on the receiver is reduced so that the cost of a microwave transmitting system is reduced eventually.
    • 本发明提供的用于发送开销信息的方法包括:将开销信息划分和重构为至少两个开销部分,将至少两个开销部分插入到至少两个相应数据帧的开销字节中,以及发送至少两个开销 经由至少两个数据帧的部件是微波帧。 本发明还提供了开销信息发送装置和开销信息接收装置。 利用本发明的方法和装置,由开销字节或每个微波帧占用的信道带宽资源大大降低。 如果保存的信道带宽用于对发送的信息执行纠错码,则可以提高码增益,减少对接收机的灵敏度要求,从而最终降低微波发射系统的成本。
    • 3. 发明申请
    • DEMODULATION CIRCUIT, DIGITAL MICROWAVE SYSTEM AND DEMODULATION METHOD
    • 解调电路,数字微波系统和解调方法
    • US20090185640A1
    • 2009-07-23
    • US12416390
    • 2009-04-01
    • Guixue ZhaoTianxiang Wang
    • Guixue ZhaoTianxiang Wang
    • H04L27/14H04L27/06H03K9/00
    • H04L27/06H04L25/069H04L27/1563
    • A demodulation circuit, a digital microwave system including the demodulation circuit, and a signal demodulation method are provided. The demodulation circuit includes a first circuit, a second circuit, a third circuit, and a fourth circuit connected in turn. The fourth circuit includes a pulse counting unit and a data decision unit connected in turn. The signal demodulation method includes: performing bandpass filtering on input signals; increasing gains of the bandpass filtered signals; extracting pulse signals are extracted from the gain-increased signals; counting the extracted pulse signals; filtering the pulse signals having counting values falling outside of a predetermined range, and outputting the filtered pulse signals.
    • 提供了解调电路,包括解调电路的数字微波系统和信号解调方法。 解调电路包括依次连接的第一电路,第二电路,第三电路和第四电路。 第四电路包括依次连接的脉冲计数单元和数据判定单元。 信号解调方法包括:对输入信号进行带通滤波; 增加带通滤波信号的增益; 从增益增益信号中提取提取脉冲信号; 对所提取的脉冲信号进行计数; 对具有落在预定范围之外的计数值的脉冲信号进行滤波,并输出经滤波的脉冲信号。
    • 4. 发明授权
    • Demodulation circuit, digital microwave system and demodulation method
    • 解调电路,数字微波系统和解调方法
    • US08170148B2
    • 2012-05-01
    • US13270108
    • 2011-10-10
    • Guixue ZhaoTianxiang Wang
    • Guixue ZhaoTianxiang Wang
    • H03D1/24
    • H04L27/06H04L25/069H04L27/1563
    • A demodulation circuit, a digital microwave system including the demodulation circuit, and a signal demodulation method are provided. The demodulation circuit includes a first circuit, a second circuit, a third circuit, and a fourth circuit connected in turn. The fourth circuit includes a pulse counting unit and a data decision unit connected in turn. The signal demodulation method includes: performing bandpass filtering on input signals; increasing gains of the bandpass filtered signals; extracting pulse signals are extracted from the gain-increased signals; counting the extracted pulse signals; filtering the pulse signals having counting values falling outside of a predetermined range, and outputting the filtered pulse signals.
    • 提供了解调电路,包括解调电路的数字微波系统和信号解调方法。 解调电路包括依次连接的第一电路,第二电路,第三电路和第四电路。 第四电路包括依次连接的脉冲计数单元和数据判定单元。 信号解调方法包括:对输入信号进行带通滤波; 增加带通滤波信号的增益; 从增益增益信号中提取提取脉冲信号; 对所提取的脉冲信号进行计数; 对具有落在预定范围之外的计数值的脉冲信号进行滤波,并输出经滤波的脉冲信号。