公开(公告)号：US06215814B1

公开(公告)日：2001-04-10

申请号：US09571138

申请日：2000-05-15

Applicant: Juha Ylitalo ,  Peter Muszynski ,  Esa Tiirola ,  Toni Neffling

Inventor： Juha Ylitalo ,  Peter Muszynski ,  Esa Tiirola ,  Toni Neffling

IPC: H04B169

CPC classification number: H04B1/712 ,  H04B1/7115 ,  H04B7/0857 ,  H04B2201/709727

Abstract: The invention relates to a RAKE receiver of a CDMA system using IRC, the receiver receiving a radio signal by using at least two antenna branches. In accordance with the invention a RAKE finger comprises: a weighting coefficient part for forming weighting coefficients maximizing the Signal-to-Interference-and-Noise Ratio for each antenna branch; a multiplier for multiplying a pilot part, despread by a despreader in each antenna branch, by a weighting coefficient; a multiplier for multiplying a data part, despread by a despreader in each antenna branch, by a weighting coefficient; an antenna branch summer for combining the despread pilot parts, received via the separate antenna branches and multiplied by the weighting coefficient, to one pilot signal; an antenna branch summer for combining the despread data parts, received via the separate antenna branches and multiplied by the weighting coefficient, to one data signal. In addition, the receiver comprises a RAKE finger summer for combining the data signals of the RAKE fingers operating by different delays to a sum data signal representing the received bits.

Abstract translation: 本发明涉及使用IRC的CDMA系统的RAKE接收机，该接收机通过使用至少两个天线分支来接收无线电信号。 根据本发明，RAKE手指包括：加权系数部分，用于形成最大化每个天线分支的信号与干扰与噪声比的加权系数; 乘法器，用于将由每个天线分支中的解扩器解扩的导频部分乘以加权系数; 乘法器，用于将由每个天线分支中的解扩器解扩的数据部分乘以加权系数; 一个天线分支加法器，用于将通过分离的天线分支接收并被乘以加权系数的解扩导频部分组合成一个导频信号; 天线分支加法器，用于将通过分离的天线分支接收并被乘以加权系数的解扩数据部分组合成一个数据信号。 此外，接收机包括RAKE拨号加法器，用于将由不同延迟操作的RAKE指针的数据信号组合到表示所接收的比特的和数据信号。

公开(公告)号：US06593808B2

公开(公告)日：2003-07-15

申请号：US09767290

申请日：2001-01-19

Applicant: Jari Pekkarinen ,  Toni Neffling

Inventor： Jari Pekkarinen ,  Toni Neffling

IPC: H03F366

CPC classification number: H03F1/3223

Abstract: A method of setting up a linearizing circuit such as a linear power amplifier is described. According to the method, an input signal is supplied at a low, starting power level and is lowly increased during a set-up until it attains an operational level for normal use. The advantage of this is that pilot tone used in the linearizing circuit can be readily detected during set-up because its amplitude is above that of the low, starting power level of the input signal. A feed-forward linearizing system and a transmission system utilizing the technique are described.

Abstract translation: 描述了一种线性功率放大器的线性化电路的建立方法。 根据该方法，在低启动功率电平下提供输入信号，并且在设置期间低输入信号，直到达到正常使用的操作电平。 其优点在于，在设置期间可以容易地在线性化电路中使用的导频音，因为其幅度高于输入信号的低起始功率电平的振幅。 描述了使用该技术的前馈线性化系统和传输系统。

公开(公告)号：US06741663B1

公开(公告)日：2004-05-25

申请号：US09702922

申请日：2000-10-27

Applicant: Olli Tapio ,  Toni Neffling

Inventor： Olli Tapio ,  Toni Neffling

IPC: H04K102

CPC classification number: H03F1/3247 ,  H03F2201/3233

Abstract: The invention relates to a linearization method for an RF amplifier and an arrangement implementing the method. A difference between an output signal of the amplifier and an unpredistorted input signal supplied to the amplifier is formed from baseband, quadrature components by means of a complex LMS algorithm in adaptation means. On the basis of the signal difference, the non-linearity of the amplifier is adaptively corrected before a quadrature modulator by changing the values of the complex quadrature components of the baseband signal by means of digital predistortion coefficients retrieved from a memory.

Abstract translation: 本发明涉及一种RF放大器的线性化方法和实现该方法的装置。 放大器的输出信号与提供给放大器的未失真输入信号之间的差异由适配装置中的复LMS算法由基带正交分量形成。 基于信号差，通过从存储器检索的数字预失真系数改变基带信号的复正交分量的值，在正交调制器之前，自适应地校正放大器的非线性。

公开(公告)号：US06333676B1

公开(公告)日：2001-12-25

申请号：US09529226

申请日：2000-04-10

Applicant: Toni Neffling

Inventor： Toni Neffling

IPC: H03F100

CPC classification number: H03F1/3229

Abstract: The invention relates to a control method and a control arrangement which comprises a feedforward power amplifier (10), which receives and amplifies a signal and which on amplifying the signal causes non-linearities to the signal. The control arrangement also comprises adjusting members (50, 80) and adaptation means (110, 130), which form an adaptation factor and control the operation of the adjusting means (50, 80) by means of the adaptation factor by adapting the amplitudes and phases of signal propagating along different signal paths to one another. The control arrangement further comprises control means (120), which produce information of the gain required by the power amplifier (10), said control means (120) ordering the adaptation means (110, 130) to adjust the adaptation factor in advance on the basis of the received information to correspond to the gain of the power amplifier (10), which enables adaptation of the signal also when the input power level changes rapidly.

Abstract translation: 本发明涉及一种控制方法和控制装置，其包括前馈功率放大器（10），其接收和放大信号，并且在信号放大时对信号产生非线性。 控制装置还包括调整构件（50,80）和适配装置（110,130），其形成适应因子，并通过适配因子来调节调节装置（50,80）的操作， 信号沿着不同的信号路径彼此传播的相位。 控制装置还包括控制装置（120），其产生功率放大器（10）所需的增益的信息，所述控制装置（120）排序适配装置（110,130）以预先调整适配因子 接收到的信息的基础，以对应于功率放大器（10）的增益，这也使得当输入功率电平快速变化时也能够适应信号。

公开(公告)号：US06321071B1

公开(公告)日：2001-11-20

申请号：US09359728

申请日：1999-07-22

Applicant: Jari Pekkarinen ,  Toni Neffling

Inventor： Jari Pekkarinen ,  Toni Neffling

IPC: H04B104

CPC classification number: H04B17/18 ,  H04B17/17

Abstract: A test method in an RF communication system. In the communication system, at least one RF communication channel lies about a known carrier frequency in an RF communication band. According to the method, a diagnostic signal is introduced into a circuit to be tested, such as a linear power amplifier, the diagnostic signal having an RF diagnostic frequency lying within the communication band. The diagnostic signal is down converted to an intermediate frequency for diagnostic purposes so that DSP is simplified. The diagnostic frequency is selected based on the known carrier frequency of the communication channel so that the communication channel is not down converted as an image band with the diagnostic signal.

Abstract translation: 射频通信系统中的测试方法。 在通信系统中，至少一个RF通信信道围绕RF通信频带中的已知载波频率。 根据该方法，将诊断信号引入待测电路，例如线性功率放大器，诊断信号具有位于通信频带内的RF诊断频率。 诊断信号被下变频到中频以进行诊断，从而简化DSP。 基于通信信道的已知载波频率来选择诊断频率，使得通信信道不被下变频为具有诊断信号的图像带。

公开(公告)号：US06271724B1

公开(公告)日：2001-08-07

申请号：US09547371

申请日：2000-04-11

Applicant: Toni Neffling

Inventor： Toni Neffling

IPC: H03F126

CPC classification number: H03F1/3229 ,  H03F1/3223 ,  H03F1/3241

Abstract: The invention relates to a linearization method and an amplifier arrangement, in which a signal to be amplified is predistorted by utlilizing digital predistortion information stored in the memory of a predistortion controller. Predistortion means predistort the signal to be amplified in its analogue form, the predistortion is adapted at least to the signal to be amplified, the predistorion information stored in the memory of the controller correspond to the variables of polar coordinates, such as phase and amplitude, and the phase and amplitude of the signal to be amplified are distorted in the predistortion in accordance with the predistortion information located in the memory of the controller.

Abstract translation: 本发明涉及一种线性化方法和放大器装置，其中通过利用存储在预失真控制器的存储器中的数字预失真信息对要放大的信号进行预失真。 预失真意味着将其以模拟形式放大的信号预失真，预失​​真至少适合要放大的信号，存储在控制器存储器中的预失真信息对应于极坐标变量，如相位和幅度， 并且根据位于控制器的存储器中的预失真信息，在预失真中要放大的信号的相位和幅度失真。

公开(公告)号：US06229391B1

公开(公告)日：2001-05-08

申请号：US09550186

申请日：2000-04-14

Applicant: Toni Neffling

Inventor： Toni Neffling

IPC: H03F100

CPC classification number: H03F1/3229

Abstract: The invention relates to an adaptation method and amplifier arrangement, which comprises feedforward amplifying means (10) which amplify a signal entering the arrangement, and adjusting means (20, 25, 50, 80) which use complex factors &agr; and &bgr;, which are adapted in order to adjust the phase and amplitude of the input signal to the amplifier arrangement. The amplifier arrangement also comprises attenuation means (40) which attenuate the signal amplified by the amplifier (10), means (60) which subtract the attenuated signal from the adapted signal, adjusting means (50, 80) which receive part of the signal entering the arrangement for adaptation by factor a, which is adapted partly by the signal obtained from the adapted signal. Furthermore, the amplifier arrangement comprises means (180) which are connected to the outgoing end of the amplifier (10) and form a predetermined signal, adders (15) which add the predetermined signal to the signal amplified by the amplifying means (10), means (150) which form a conjugate signal of the adapted signal and multiply the conjugate signal by the predetermined signal and control adaptation of factor &bgr; by means of the signal obtained as a result of multiplication.

Abstract translation: 本发明涉及一种自适应方法和放大器装置，其包括放大进入该装置的信号的前馈放大装置（10）和使用复数因子α和β的调整装置（20,25,50,80） 以便将输入信号的相位和幅度调整到放大器装置。 放大器装置还包括衰减由放大器（10）放大的信号的衰减装置（40），从适应信号中减去衰减信号的装置（60），调节装置（50,80），其接收部分信号进入 由因子a适应的布置，其部分地由从适配信号获得的信号适应。 此外，放大器装置包括连接到放大器（10）的输出端并形成预定信号的装置（180），加法器（15）将预定信号加到由放大装置（10）放大的信号上， 形成适应信号的共轭信号的装置（150），并将共轭信号乘以预定信号，并通过乘法得到的信号来控制因子β的适配。