公开(公告)号：US07672642B2

公开(公告)日：2010-03-02

申请号：US11312492

申请日：2005-12-21

Applicant: Olli Piirainen

Inventor： Olli Piirainen

IPC: H04B1/00 ,  H04B1/04 ,  H04B7/00 ,  H04M3/00 ,  H04M1/00

CPC classification number: H04L5/06

Abstract: Embodiments of the invention relate to uplink communication in a GSM/EDGE telecommunication system. A method according to certain embodiments of the invention include at least one wide-band carrier wave in the group of carrier waves being generated in a mobile station by applying linear modulation at a first modulation symbol rate, the first modulation symbol rate being a multiple of a second modulation symbol rate, while preserving a predefined carrier spacing and allowing the at least one wide-band carrier wave to overlap with at least one adjacent carrier wave.

Abstract translation: 本发明的实施例涉及GSM / EDGE电信系统中的上行链路通信。 根据本发明的某些实施例的方法包括在移动站中通过以第一调制符号速率应用线性调制来生成载波组中的至少一个宽带载波，第一调制符号速率是 第二调制符号速率，同时保留预定义的载波间隔，并允许所述至少一个宽带载波与至少一个相邻载波重叠。

公开(公告)号：US07643801B2

公开(公告)日：2010-01-05

申请号：US11074006

申请日：2005-03-08

Applicant: Olli Piirainen

Inventor： Olli Piirainen

IPC: H04B1/04

CPC classification number: H04L27/2623 ,  H03F1/0205 ,  H03F1/32 ,  H03F2201/3236 ,  H04B1/04 ,  H04B2001/0416

Abstract: A transmitter clips a transmission signal before transmission in order to reduce the strength of at least one peak of the transmission signal exceeding a predetermined threshold. The transmitter includes a clipper having a minimizer, a filter and an adder. The minimizer minimizes of a cost function with respect to an optimization signal, the cost function having weighted terms as a function of the optimization signal. The terms relate to an effective modulation distortion and an effective overshoot exceeding the predetermined threshold. The filter forms a clipping signal by filtering the optimization signal formed as a result of the minimization according to the spectrum emission mask requirements of the radio system. The adder subtracts the clipping signal from the transmission signal.

Abstract translation: 发射机在传输之前剪切传输信号，以便减少超过预定阈值的传输信号的至少一个峰值的强度。 发射机包括具有最小化器，滤波器和加法器的限幅器。 最小化器相对于优化信号最小化成本函数，成本函数具有作为优化信号的函数的加权项。 这些术语涉及超过预定阈值的有效调制失真和有效超调。 滤波器通过根据无线电系统的频谱发射掩模要求对作为最小化的结果形成的优化信号进行滤波来形成限幅信号。 加法器从发送信号中减去削波信号。

公开(公告)号：US20090202031A1

公开(公告)日：2009-08-13

申请号：US12069524

申请日：2008-02-11

Applicant: Juha P. Karjalainen ,  Markku J. Vainikka ,  Olli Piirainen

Inventor： Juha P. Karjalainen ,  Markku J. Vainikka ,  Olli Piirainen

IPC: H04L7/00

CPC classification number: H04W56/0045 ,  H04B7/2681 ,  H04L7/0054

Abstract: An apparatus includes a radio frequency receiver and a timing adjustment unit that contains at least two channel impulse response estimators. The at least two channel impulse response estimators include an on-time estimator and at least one of an early estimator and a late estimator. The apparatus also includes a calculation unit that is configurable to obtain a channel estimate for each measured channel impulse response and to average obtained channel estimates over a plurality of received signal events to determine a timing adjustment in accordance with residual signal power.

Abstract translation: 一种装置包括射频接收机和包含至少两个信道脉冲响应估计器的定时调整单元。 所述至少两个信道脉冲响应估计器包括接通时间估计器和早期估计器和后期估计器中的至少一个。 该装置还包括计算单元，其可配置为获得针对每个测量的信道脉冲响应的信道估计，并且在多个接收信号事件上平均获得的信道估计，以根据剩余信号功率确定定时调整。

公开(公告)号：US07260162B2

公开(公告)日：2007-08-21

申请号：US10168632

申请日：2000-12-15

Applicant: Olli Piirainen

Inventor： Olli Piirainen

IPC: H03D1/06

CPC classification number: H04L1/0036 ,  H04L1/0009 ,  H04L1/0046 ,  H04L25/03006 ,  H04L2025/03726

Abstract: A method and apparatus for improving the quality of a signal which has been detrimentally affected by inter-symbol interference due to time dispersion. The invention includes selecting one of at least two algorithms of equalization and after the selection, and processing the signal by performing steps according to the selected algorithm.

Abstract translation: 一种用于改善由于时间分散而不利地受到符号间干扰的影响的信号质量的方法和装置。 本发明包括选择均衡和选择之后的至少两种算法中的一种，并且通过根据所选择的算法执行步骤来处理信号。

公开(公告)号：US20070161361A1

公开(公告)日：2007-07-12

申请号：US11357084

申请日：2006-02-21

Applicant: Petri Vaisanen ,  Olli Piirainen ,  Markku Vainikka

Inventor： Petri Vaisanen ,  Olli Piirainen ,  Markku Vainikka

IPC: H04B1/00 ,  H04B1/18 ,  H04B1/10

CPC classification number: H04L25/03159 ,  H04B1/1036 ,  H04L25/0224 ,  H04L25/0328

Abstract: An interference suppression scheme is provided for a radio receiver. According to the provided interference suppression scheme, the bandwidth of a received pilot signal and a data signal is divided into a plurality of frequency sub-bands. The pilot signal and the data signal have been transmitted according to single carrier data transmission technology. Interference parameters are calculated for each frequency sub-band separately. Interference suppression may be carried out jointly or separately for each frequency sub-band. After the interference suppression, the frequency sub-bands are combined. A filter bank may be used for dividing the total frequency band into sub-bands.

Abstract translation: 为无线电接收机提供干扰抑制方案。 根据所提供的干扰抑制方案，接收到的导频信号和数据信号的带宽被划分成多个频率子带。 导频信号和数据信号已经根据单载波数据传输技术进行了传输。 分别计算每个频率子带的干扰参数。 干扰抑制可以针对每个频率子带共同地或单独地执行。 在干扰抑制之后，频率子带被组合。 可以使用滤波器组来将总频带划分成子带。

公开(公告)号：US20070054633A1

公开(公告)日：2007-03-08

申请号：US11247324

申请日：2005-10-12

Applicant: Olli Piirainen

Inventor： Olli Piirainen

IPC: H04B17/00 ,  H03C1/62

CPC classification number: H04B7/0697 ,  H04B7/063

Abstract: The invention provides a data transmission solution in a telecommunication system. According to the invention, a data transmission scheme is selected for a first transceiver unit, which comprises a plurality of transmit antennas, on the basis of the quality of a communication link and transmit antenna correlation information associated with the first transceiver unit, from a list including at least the following data transmission schemes: transmitting different data from each antenna of the first transceiver unit, the data transmitted from one antenna being independent of the data transmitted from another antenna; and transmitting the same data from each antenna of the first transceiver unit and controlling the direction of the transmitted data according to the properties of a radio channel. The selection of the data transmission scheme is carried out during an active communication link between the first and a second transceiver unit.

Abstract translation: 本发明提供一种电信系统中的数据传输解决方案。 根据本发明，从列表中选择基于通信链路的质量和与第一收发器单元相关联的发射天线相关信息的第一收发器单元的数据传输方案，其包括多个发射天线 至少包括以下数据传输方案：从第一收发器单元的每个天线发送不同数据，从一个天线发送的数据独立于从另一个天线发送的数据; 并且从第一收发器单元的每个天线发送相同的数据，并且根据无线电信道的属性来控制所发送的数据的方向。 在第一和第二收发器单元之间的主动通信链路期间执行数据传输方案的选择。

公开(公告)号：US20060160553A1

公开(公告)日：2006-07-20

申请号：US11312492

申请日：2005-12-21

Applicant: Olli Piirainen

Inventor： Olli Piirainen

IPC: H04B7/00 ,  H04Q7/20

CPC classification number: H04L5/06

Abstract: The invention relates to uplink communication in a GSM/EDGE telecommunication system. In the method according to the invention, at least one wide-band carrier wave in the group of carrier waves is generated in the mobile station by applying linear modulation at a second modulation symbol rate, the second modulation symbol rate being a multiple of the first modulation symbol rate, while preserving the predefined carrier spacing and allowing the at least one wide-band carrier wave to overlap with at least one adjacent carrier wave.

Abstract translation: 本发明涉及GSM / EDGE电信系统中的上行链路通信。 在根据本发明的方法中，通过以第二调制符号速率应用线性调制，在移动台中产生载波组中的至少一个宽带载波，第二调制符号速率是第一 调制符号率，同时保留预定义的载波间隔，并允许至少一个宽带载波与至少一个相邻载波重叠。

公开(公告)号：US06643675B2

公开(公告)日：2003-11-04

申请号：US10187443

申请日：2002-07-02

Applicant: Olli Piirainen

Inventor： Olli Piirainen

IPC: G06F1717

CPC classification number: H03H17/0288 ,  H03H17/0671

Abstract: The invention relates to a filtering method and a filter implementing the filtering method. In the solution, a signal is filtered by at least one real FIR filter having at least one stop frequency pair whose different frequencies are symmetrically on different sides of at least one alias frequency.

Abstract translation: 本发明涉及一种实现滤波方法的滤波方法和滤波器。 在该解决方案中，信号被至少一个具有至少一个停止频率对的实际FIR滤波器滤波，其中不同频率对称地在至少一个别名频率的不同侧上。

公开(公告)号：US06526102B1

公开(公告)日：2003-02-25

申请号：US09284121

申请日：1999-04-28

Applicant: Olli Piirainen

Inventor： Olli Piirainen

IPC: H04K102

CPC classification number: H04W52/343 ,  H04W52/346

Abstract: The invention relates to a method of optimizing transmission, and a transmitter receiving digital signals, in which the transmitter is used in a radio system to optimally transmit the signals. The transmitter includes modulation means arranged to modulate the received signals, and converter means for converting the digital signal into an analog signal before signal transmission. The position of the signal received by the converter means within the dynamic range of the converter means affects optimality of the signal obtained from the conversion. The transmitter further include means for generating weighting coefficients, and means for weighting each modulated signal by a specific weighting coefficient so as to set the mutual power levels of the signals into predetermined relations and to optimally dispose the signals within the dynamic range of the converter means. In addition, the transmitter includes means for combining the weighted signals, after which the converter means converts the combined signal into an analog signal, and means for scaling the signal converted into the analog signal into a predetermined power level.

Abstract translation: 本发明涉及一种优化传输的方法，以及接收数字信号的发射机，其中发射机用于无线电系统以最佳地传输信号。 发射机包括调制装置，用于调制接收的信号;以及转换器装置，用于在信号传输之前将数字信号转换为模拟信号。 在转换器装置的动态范围内由转换器装置接收的信号的位置影响从转换获得的信号的最优性。 发射机还包括用于产生加权系数的装置，以及用于通过特定加权系数对每个调制信号进行加权的装置，以便将信号的相互功率电平设置成预定关系并且最佳地将该信号置于转换器装置的动态范围内 。 此外，发射机包括用于组合加权信号的装置，之后转换器装置将组合信号转换为模拟信号，以及用于将转换成模拟信号的信号缩放为预定功率电平的装置。

公开(公告)号：US06473016B2

公开(公告)日：2002-10-29

申请号：US09851429

申请日：2001-05-09

Applicant: Olli Piirainen ,  Markku Tirkkonen

Inventor： Olli Piirainen ,  Markku Tirkkonen

IPC: H03M162

CPC classification number: H03G3/3078 ,  H03G1/0088 ,  H03M1/185

Abstract: The invention relates to a method and an apparatus for implementing automatic gain control in a system where an analog signal is converted into a digital signal. The apparatus comprises means (208) for performing automatic gain control of the adjustable signal in an analog manner using a gain control step of predetermined size and means (446, 448) for performing inverse gain control of the digitized signal in such a way that, after the digital adjustment, the power of the signal is the same as before the analog adjustment. To enable an accurate gain control, the apparatus further comprises means (410, 412, 214, 420) for determining the maximum energy of the signal during a predetermined measurement period, means (426, 428) for comparing the determined maximum energy to preset threshold values (430, 432), and means (436) for performing an automatic gain control of the analog signal and a compensation for the gain control to the digital signal, if the measured value exceeds the threshold.

Abstract translation: 本发明涉及一种在将模拟信号转换为数字信号的系统中实现自动增益控制的方法和装置。 该装置包括用于使用预定尺寸的增益控制步骤以模拟方式执行可调节信号的自动增益控制的装置（208）和用于以这样的方式执行数字化信号的逆增益控制的装置（446,448） 数字调节后，信号的功率与模拟调整前相同。 为了实现精确的增益控制，装置还包括用于在预定测量周期内确定信号的最大能量的装置（410,412,214,420），用于将确定的最大能量与预设阈值进行比较的装置（426,428） 值（430,432）和用于执行模拟信号的自动增益控制的装置（436）以及对数字信号的增益控制的补偿，如果测量值超过阈值。