公开(公告)号：US5786703A

公开(公告)日：1998-07-28

申请号：US624423

申请日：1996-04-01

Applicant: Olli Piirainen

Inventor： Olli Piirainen

IPC: G01R31/28 ,  G01R31/3185 ,  G06F11/22 ,  H01L21/82

CPC classification number: G01R31/318555

Abstract: A method for testing an integrated circuit that has a testing portion for testing the circuit card and/or other circuits connected to the integrated circuit after the integrated circuit has been assembled onto the circuit card, inputs for controlling the testing portion, and test structures for testing the internal operations of the integrated circuit. To keep the number of the inputs to the circuit low, a test mode is defined for the testing portion, in which test mode one of the inputs of the testing portion is connected to the test structures for the internal operations of the integrated circuit, and when the internal operations of the integrated circuit are tested, the testing portion is set in the test mode, whereupon the internal test structures of the integrated circuit can be controlled from the input of the testing portion.

Abstract translation: PCT No.PCT / FI94 / 00439 Sec。 371日期：1996年4月1日 102（e）日期1996年4月1日PCT 1994年9月30日PCT PCT。 WO95 / 10048 PCT出版物 日期1995年04月13日一种用于测试集成电路的方法，该集成电路具有用于测试电路卡和/或连接到集成电路的其它电路的测试部分，该集成电路已经组装到电路卡上，用于控制测试部分 ，以及用于测试集成电路内部操作的测试结构。 为了将电路的输入数保持为低电平，为测试部分定义测试模式，其中测试模式的一个输入与集成电路的内部操作的测试结构连接， 当测试集成电路的内部操作时，将测试部分设置在测试模式中，由此可以从测试部分的输入端控制集成电路的内部测试结构。

公开(公告)号：US07889798B2

公开(公告)日：2011-02-15

申请号：US10627962

申请日：2003-07-28

Applicant: Olli Piirainen ,  Miia Karjalainen

Inventor： Olli Piirainen ,  Miia Karjalainen

IPC: H04K1/10

CPC classification number: H04L27/2624 ,  H03G11/00

Abstract: A method of reducing the peak-to-mean ratio of a multi-carrier signal includes the steps of: generating a residual signal from the multicarrier signal, the residual signal representing the difference between the multicarrier signal and a hard-clipped multicarrier signal. The method also includes the steps of applying a least squares function to the residual signal for each carrier of the multi-carrier signal, thereby generating a minimized residual signal for each carrier and combining the minimized residual signals and the multicarrier signal.

Abstract translation: 降低多载波信号的峰均比的方法包括以下步骤：从多载波信号产生残差信号，残差信号表示多载波信号与硬限幅多载波信号之间的差。 该方法还包括以下步骤：对于多载波信号的每个载波对剩余信号应用最小二乘函数，从而为每个载波生成最小化的残余信号，并组合最小化的残余信号和多载波信号。

公开(公告)号：US07653160B2

公开(公告)日：2010-01-26

申请号：US11266359

申请日：2005-11-04

Applicant: Olli Piirainen

Inventor： Olli Piirainen

IPC: H04L1/00 ,  H04L1/02 ,  H04L1/10 ,  H04L7/02 ,  H04J11/00

CPC classification number: H04B1/1027 ,  H04B17/373

Abstract: The invention relates to a method of estimating a noise and interference covariance matrix and to a receiver. The method comprises: estimating an initial noise and interference covariance matrix on the basis of a received signal; reducing the impact of the background noise of the receiver from the initial noise and interference covariance matrix for obtaining a residual matrix; accepting the obtained residual matrix when the residual matrix is at least approximately positive semidefinite; modifying the obtained residual matrix such that the positive semidefinity of the residual matrix is achieved when the residual matrix is not at least approximately positive semidefinite; and adding the impact of background noise back to the residual matrix for estimating a final noise and interference covariance matrix.

Abstract translation: 本发明涉及一种估计噪声和干扰协方差矩阵和接收机的方法。 该方法包括：基于接收信号估计初始噪声和干扰协方差矩阵; 从初始噪声和干扰协方差矩阵减小接收机的背景噪声对获得残余矩阵的影响; 当残余矩阵至少约为正半定数时，接受所获得的残余矩阵; 修改所获得的残余矩阵，使得当残余矩阵不至少近似为正半固定时，实现残余矩阵的正半精度; 并将背景噪声的影响加回到残差矩阵中，以估计最终的噪声和干扰协方差矩阵。

公开(公告)号：US20080064337A1

公开(公告)日：2008-03-13

申请号：US11897962

申请日：2007-08-31

Applicant: Mikko Saily ,  Olli Piirainen ,  Kari Niemela ,  Jari Hulkkonen

Inventor： Mikko Saily ,  Olli Piirainen ,  Kari Niemela ,  Jari Hulkkonen

IPC: H04B15/00 ,  H04B1/00

CPC classification number: H04B17/345

Abstract: A method, mobile device, network device, system, and software are devised for soft value scaling with a single antenna interference cancellation (SAIC) receiver, or with an interference rejection combining (IRC) receiver, in an unsynchronized network. A signal is received having interference that is caused by a non-synchronized network. A desired power level of that signal is calculated. Then the desired power is compared to a total power of the signal, in order to identify a portion of a received burst having substantial interference. Then that portion of the received burst is weighted, to reduce its importance during decoding.

Abstract translation: 设计了一种方法，移动设备，网络设备，系统和软件，用于在不同步网络中使用单天线干扰消除（SAIC）接收机或与干扰抑制组合（IRC）接收机进行软值缩放。 接收到具有由非同步网络引起的干扰的信号。 计算该信号的期望功率电平。 然后将期望的功率与信号的总功率进行比较，以便识别具有实质干扰的接收脉冲串的一部分。 然后对接收到的突发的那部分进行加权，以减少它在解码过程中的重要性。

公开(公告)号：US07340004B2

公开(公告)日：2008-03-04

申请号：US10493396

申请日：2002-10-23

Applicant: Tapio Vuopala ,  Olli Piirainen

Inventor： Tapio Vuopala ,  Olli Piirainen

IPC: H04L27/00

CPC classification number: H04B1/70755 ,  H04B2201/70706 ,  H04L27/2624 ,  H04L27/366

Abstract: A method for limiting a signal in a radio transmitter comprises giving a signal a limiting threshold, taking at least two samples from the signal for obtaining sample values, adding one or more sample values between the obtained first and at least one subsequent sample values, searching for sample values exceeding the limiting threshold, and if at least one sample value exceeding the limiting threshold is found determining limiting coefficients for a predetermined number of sample values by means of the at least one sample value exceeding the limiting threshold, and limiting the signal by one or more determined coefficients.

Abstract translation: 一种用于限制无线电发射机中的信号的方法包括：向信号提供限制阈值，从所述信号获取至少两个样本以获得样本值，在获得的第一和至少一个后续采样值之间加上一个或多个采样值，搜索 对于超过限制阈值的采样值，并且如果发现超过限制阈值的至少一个采样值通过超过限制阈值的至少一个采样值确定预定数量的采样值的限制系数，并且通过 一个或多个确定的系数。

公开(公告)号：US07339918B2

公开(公告)日：2008-03-04

申请号：US10080509

申请日：2002-02-25

Applicant: Olli Piirainen

Inventor： Olli Piirainen

IPC: H04B7/212

CPC classification number: H04L1/0047 ,  H04B17/318

Abstract: A method for improving the quality of data transmission in cellular radio systems utilizes time division multiple access, in which the strength of a signal received at a base station is measured and a decoder for soft decision-making is employed. The method includes measuring the strength of the signal the base station receives in at least two consecutive time slots and determining a weighting coefficient by comparing the signal strengths and reducing, using the determined weighting coefficient in a soft bit decision-making, the significance of at least one symbol at the beginning of the burst the base station receives in a time slot if the difference between the measured signal strengths is considerable.

Abstract translation: 用于提高蜂窝无线电系统中的数据传输质量的方法利用时分多址接入，其中测量在基站接收的信号的强度，并采用用于软判决的解码器。 该方法包括测量基站在至少两个连续时隙中接收的信号的强度，并且通过比较信号强度来确定加权系数，并且通过软比特决策中的确定的加权系数来减少在 如果测量的信号强度之间的差异是相当大的，则基站在时隙中接收的突发的开始处的最少一个符号。

公开(公告)号：US20080037411A1

公开(公告)日：2008-02-14

申请号：US11897025

申请日：2007-08-27

Applicant: Kari Niemela ,  Olli Piirainen ,  Mikko Saily ,  Jari Hulkkonen

Inventor： Kari Niemela ,  Olli Piirainen ,  Mikko Saily ,  Jari Hulkkonen

IPC: H04J3/06

CPC classification number: H04B1/406 ,  H04B1/04 ,  H04W88/06

Abstract: The specification and drawings present a new method, system, apparatus and software product for variable filtering of a mobile station (MS) for supporting uplink communications using available capabilities of a network element in wireless communication systems (e.g., evolved GERAN). The MS may have at least two different pulse shaping filter capabilities providing at least two different bandwidths: one narrower being suitable for legacy transceivers and another wider and thus optimal for variable symbol rate from performance point of view. A BSS (base station subsystem) may then request to use one of those filter capabilities according to BSS available resources

Abstract translation: 说明书和附图提出了一种用于使用无线通信系统（例如，演进GERAN）中的网元的可用能力支持上行链路通信的移动台（MS）的可变过滤的新方法，系统，装置和软件产品。 MS可以具有提供至少两个不同带宽的至少两个不同的脉冲整形滤波器能力：一个较窄的适用于传统收发器，另一个较窄，因此从性能的角度来看，可变符号率最佳。 然后，BSS（基站子系统）可以根据BSS可用资源请求使用那些过滤能力之一

公开(公告)号：US07224705B2

公开(公告)日：2007-05-29

申请号：US10731427

申请日：2003-12-10

Applicant: Olli Piirainen

Inventor： Olli Piirainen

IPC: H04J3/06 ,  G04C11/02 ,  H04L7/00

CPC classification number: H04W56/0015 ,  H04B7/2668 ,  H04J3/0688 ,  H04W88/10

Abstract: A method for synchronizing a multi-mode base station using one clock, when the systems to be synchronized are a GSM-type telecommunications system, for instance a GSM or EDGE system, and a WCDMA-type telecommunications system. In the method, the clock of the WCDMA-type system or a multiple thereof is selected as the system clock of the multi-mode base station, the system clock of the GSM-type system is implemented using multiples of the frequency of the selected clock, and the frame structure of the GSM-type system is synchronized at intervals of thirteen frames or a multiple of thirteen frames.

Abstract translation: 当要同步的系统是例如GSM或EDGE系统的GSM型电信系统以及WCDMA型电信系统时，使用一个时钟同步多模式基站的方法。 在该方法中，WCDMA系统的时钟或其倍数被选择为多模式基站的系统时钟，GSM系统的系统时钟使用选定时钟频率的倍数来实现 ，GSM系统的帧结构以13帧或13帧的倍数进行同步。

公开(公告)号：US20070005352A1

公开(公告)日：2007-01-04

申请号：US11441117

申请日：2006-05-26

Applicant: Petri Vaisanen ,  Olli Piirainen ,  Markku Vainikka

Inventor： Petri Vaisanen ,  Olli Piirainen ,  Markku Vainikka

IPC: G10L19/02

CPC classification number: H04B1/16 ,  G10L25/18

Abstract: Solutions for receiving and transmitting variable transmission bandwidth signal are provided. A receiver comprises square-root raised cosine filter bank, each filter of the filter bank configured to filter a subband, and an adder configured to add up the output signals of one or more filters of the filter bank to obtain a sum signal, the sum of the subbands of the one or more filters being equal to the transmission bandwidth of the received signal. A transmitter comprises a transmission filter, the roll-off factor of the transmission filter being selected on the basis of the bandwidth of the signal to be transmitted.

Abstract translation: 提供了用于接收和发送可变传输带宽信号的解决方案。 接收机包括平方根升余弦滤波器组，滤波器组的每个滤波器被配置为滤波子带，以及加法器，被配置为将滤波器组的一个或多个滤波器的输出信号相加以获得和信号，该和 的一个或多个滤波器的子带等于接收信号的传输带宽。 发送机包括发送滤波器，根据要发送的信号的带宽选择发送滤波器的滚降因子。

公开(公告)号：US20060291596A1

公开(公告)日：2006-12-28

申请号：US11266359

申请日：2005-11-04

Applicant: Olli Piirainen

Inventor： Olli Piirainen

IPC: H03D1/04

CPC classification number: H04B1/1027 ,  H04B17/373

Abstract: The invention relates to a method of estimating a noise and interference covariance matrix and to a receiver. The method comprises: estimating an initial noise and interference covariance matrix on the basis of a received signal; reducing the impact of the background noise of the receiver from the initial noise and interference covariance matrix for obtaining a residual matrix; accepting the obtained residual matrix when the residual matrix is at least approximately positive semidefinite; modifying the obtained residual matrix such that the positive semidefinity of the residual matrix is achieved when the residual matrix is not at least approximately positive semidefinite; and adding the impact of background noise back to the residual matrix for estimating a final noise and interference covariance matrix.

Abstract translation: 本发明涉及一种估计噪声和干扰协方差矩阵和接收机的方法。 该方法包括：基于接收信号估计初始噪声和干扰协方差矩阵; 从初始噪声和干扰协方差矩阵减小接收机的背景噪声对获得残余矩阵的影响; 当残余矩阵至少约为正半定数时，接受所获得的残余矩阵; 修改所获得的残余矩阵，使得当残余矩阵不至少近似为正半固定时，实现残余矩阵的正半精度; 并将背景噪声的影响加回到残差矩阵中，以估计最终的噪声和干扰协方差矩阵。