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    • 4. 发明申请
    • METHOD AND DEVICE FOR USING ONE MULTIPLIER TO IMPLEMENT MULTIPLICATION OF COMPLEX NUMBERS
    • 使用一个乘法器实现复合数乘法的方法和装置
    • WO2012103843A3
    • 2013-02-21
    • PCT/CN2012073320
    • 2012-03-30
    • HUAWEI TECH CO LTDWANG XIANGFU RAO
    • WANG XIANGFU RAO
    • G06F7/52
    • G06F7/4812
    • The present invention provides a method and a device for using one multiplier to implement multiplication of complex numbers. The method comprises: receiving a first complex number signal a+ci and a second complex number signal b+di, the first complex number signal and the second complex number signal being both digital communication signals; performing shift processing according to a first real part a and a first imaginary part c of the first complex number signal to acquire a first transformed value s, and performing shift processing according to a second real part b and a second imaginary part d of the second complex number signal to acquire a second transformed value t; according to the first transformed value s and the second transformed value t, performing calculation by using a multiplier to acquire a first reference value w1=st; and acquiring the real part and the imaginary part of the product of the first complex number and the second complex number according to the first reference value w1. The present invention further provides a corresponding device. The technical solutions of the present invention can overcome the disadvantage in the prior art that the utilization ratio of the multiplier is low.
    • 本发明提供一种使用一个乘法器实现复数乘法的方法和装置。 该方法包括:接收第一复数信号a + ci和第二复数信号b + di,第一复数信号和第二复数信号都是数字通信信号; 根据第一复数信号的第一实部a和第一虚部c执行移位处理以获取第一变换值s,并且根据第二变倍值s的第二实部b和第二虚部d执行移位处理 复数信号以获得第二变换值t; 根据第一变换值s和第二变换值t,通过使用乘法器来计算第一参考值w1 = st; 以及根据第一参考值w1获取第一复数和第二复数的乘积的实部和虚部。 本发明还提供了相应的装置。 本发明的技术方案可以克服现有技术中乘法器的利用率低的缺点。
    • 5. 发明申请
    • METHOD, DEVICE AND SYSTEM FOR GROUPING LINE PAIRS
    • 用于分组线对的方法,装置和系统
    • WO2011100927A3
    • 2012-03-15
    • PCT/CN2011072794
    • 2011-04-14
    • HUAWEI TECH CO LTDWANG XIANGLIU LIHELI CHENG
    • WANG XIANGLIU LIHELI CHENG
    • H04B3/32
    • H04M3/2209H04B3/32H04M11/062
    • A method, device and system for grouping line pairs are provided by the embodiment of the present invention, which relates to the field of communications and resolves the problem that due to the large amount of the line pairs in the large scale Vectored-DSL system, obtaining, through the channel training, the crosstalk cancellation coefficient matrix demands a very high capability of a system, such as the computing capability, the storage capability, and even impacts the user experience. The technical solution provided by the present invention comprises: obtaining the crosstalk impact data between the line pairs in the Vectored-DSL system (101); the line pairs, between which the crosstalk impact can not be ignored, are divided into a vector group according to the crosstalk impact data between the line pairs and the set threshold value (102). The method and device for grouping the line pairs provided by the embodiment of the present invention can be applied to the large scale Vectored-DSL.
    • 本发明涉及通信领域的实施例提供了用于分组线对的方法,装置和系统,并且解决了由于大规模Vectored-DSL系统中的大量线对而导致的问题, 通过信道训练获得串扰消除系数矩阵需要系统的非常高的能力,例如计算能力,存储能力,甚至影响用户体验。 本发明提供的技术方案包括:获得Vectored-DSL系统(101)中线路对之间的串扰影响数据; 根据线对之间的串扰冲击数据和设定的阈值(102),在串扰之间不能忽视的线对被划分成矢量组。 用于对由本发明的实施例提供的线对进行分组的方法和装置可以应用于大规模的Vectored-DSL。