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1. 发明授权

US07489657B2 Determination and use of adaptive thresholds for received messages 有权
标题翻译：确定和使用接收到的消息的自适应阈值
公开(公告)号：US07489657B2
公开(公告)日：2009-02-10
申请号：US11347655
申请日：2006-02-03
申请人： Teemu Sipilä , Tuomas Saukkonen
发明人： Teemu Sipilä , Tuomas Saukkonen
IPC分类号： H04Q7/00
CPC分类号： H04W24/10 , H04B17/26 , H04B17/345 , H04L1/0036 , H04L1/1607 , H04L1/1867 , H04W36/30 , H04W52/12
摘要： A method is disclosed that includes measuring, during a measurement period, values corresponding to noise and interference signals received from a channel. The measurement period coincides with a period when no signal is transmitted on the channel. The method also includes determining one or more thresholds based upon the measured values. Second signals that correspond to a message are received on the channel. The message includes an indicator having a number of possible states. A value is determined corresponding to the indicator based upon the second signals. One of the possible states is assigned to the indicator of the received message based upon the one or more thresholds and the determined value.
摘要翻译：公开了一种方法，其包括在测量周期期间测量对应于从信道接收的噪声和干扰信号的值。测量周期与通道上没有信号传输的周期一致。该方法还包括基于测量值确定一个或多个阈值。在信道上接收到对应于消息的第二信号。该消息包括具有多个可能状态的指示符。基于第二信号确定与指示符相对应的值。基于一个或多个阈值和确定的值，将一个可能的状态分配给接收到的消息的指示符。

2. 发明授权

US07293225B2 Method and arrangement for decoding using a trellis 失效
标题翻译：使用网格进行解码的方法和装置
公开(公告)号：US07293225B2
公开(公告)日：2007-11-06
申请号：US10662691
申请日：2003-09-15
申请人： Teemu Sipilä
发明人： Teemu Sipilä
IPC分类号： H03M13/03
CPC分类号： H03M13/6505 , H03M13/4107
摘要： A method and arrangement for performing Viterbi decoding by means of a trellis is provided. According to one embodiment, the arrangement comprises one or more ACS units. Connections between the inputs and outputs of the ACS units are implemented in such a manner that in calculating the consecutive metrics of the trellis, the calculated metrics of the previous stage of the trellis obtained from the outputs of the ACS units are directly connected to the inputs of the ACS units to be used in the calculation of the next stage of the trellis.
摘要翻译：提供了一种通过网格进行维特比解码的方法和装置。根据一个实施例，该装置包括一个或多个ACS单元。 ACS单元的输入和输出之间的连接以这样的方式实现：在计算网格的连续度量时，从ACS单元的输出获得的网格的前一级的计算度量直接连接到输入的ACS单位用于计算下一阶段的网格。

3. 发明授权

US08433989B2 Error checking with data presence detection 有权
标题翻译：错误检查与数据存在检测
公开(公告)号：US08433989B2
公开(公告)日：2013-04-30
申请号：US12933676
申请日：2008-03-19
申请人： Teemu Sipilä , Jukka Vikstedt
发明人： Teemu Sipilä , Jukka Vikstedt
IPC分类号： G06F11/00
CPC分类号： H04L1/0054
摘要： The present invention relates to an apparatus and a method for detecting presence of data, wherein input data is decoded using a decoder metric to obtain decoded data, and an error check is performed for the decoded data. Furthermore, a threshold value is determined based on an obtained maximum value that the decoder metric can assume for the input data, and the threshold value is compared with an actual value of the decoder metric. Presence of the input data is then decided based on results of the error check and the comparison.
摘要翻译：本发明涉及一种用于检测数据存在的装置和方法，其中使用解码器度量对输入数据进行解码以获得解码数据，并且对解码数据执行错误检查。此外，基于所获得的解码器度量对于输入数据可以采取的最大值来确定阈值，并且将阈值与解码器度量的实际值进行比较。然后基于错误检查和比较的结果来确定输入数据的存在。

4. 发明申请

US20110029848A1 ERROR CHECKING WITH DATA PRESENCE DETECTION 有权
标题翻译：错误检查与数据存在检测
公开(公告)号：US20110029848A1
公开(公告)日：2011-02-03
申请号：US12933676
申请日：2008-03-19
申请人： Teemu Sipilä , Jukka Vikstedt
发明人： Teemu Sipilä , Jukka Vikstedt
IPC分类号： H03M13/09 , G06F11/07 , G06F11/10
CPC分类号： H04L1/0054
摘要： The present invention relates to an apparatus and a method for detecting presence of data, wherein input data is decoded using a decoder metric to obtain decoded data, and an error check is performed for the decoded data. Furthermore, a threshold value is determined based on an obtained maximum value that the de coder metric can assume for the input data, and the threshold value is compared with an actual value of the decoder metric. Presence of the input data is then decided based on results of the error check and the comparison.
摘要翻译：本发明涉及一种用于检测数据存在的装置和方法，其中使用解码器度量对输入数据进行解码以获得解码数据，并且对解码数据执行错误检查。此外，基于所获得的解码器度量对于输入数据可以采取的最大值来确定阈值，并且将阈值与解码器度量的实际值进行比较。然后基于错误检查和比较的结果来确定输入数据的存在。

5. 发明申请

US20050086577A1 Method and arrangement for enhancing search through trellis 审中-公开
标题翻译：通过网格增强搜索的方法和安排
公开(公告)号：US20050086577A1
公开(公告)日：2005-04-21
申请号：US10496759
申请日：2002-11-27
申请人： Teemu Sipilä , Jari Parviainen
发明人： Teemu Sipilä , Jari Parviainen
IPC分类号： H03M13/41 , H03M13/03
CPC分类号： H03M13/6331 , H03M13/3955 , H03M13/41 , H03M13/6502
摘要： The invention relates to an arrangement and method for enhancing a search through a trellis in connection with decoding or channel correction, for instance. When searching through the trellis, the state indexes being processed are divided into more than one subset at each stage of the trellis, the path metrics of the state indexes are defined in the subsets, and a predefined number of state indexes are selected for continuation from each subset on the basis of the metrics.
摘要翻译：本发明涉及一种用于通过与解码或信道校正有关的网格增强搜索的装置和方法。当通过网格搜索时，正在处理的状态索引在网格的每个阶段被划分成多于一个子集，状态索引的路径度量被定义在子集中，并且选择预定数量的状态索引用于继续每个子集基于度量。

6. 发明授权

US07412005B2 Method and apparatus providing time domain interpolated channel estimation with advanced noise suppression for multicarrier transmissions 有权
标题翻译：为多载波传输提供高级噪声抑制的时域内插信道估计方法和装置
公开(公告)号：US07412005B2
公开(公告)日：2008-08-12
申请号：US10783129
申请日：2004-02-19
申请人： Haifeng Wang , Teemu Sipilä
发明人： Haifeng Wang , Teemu Sipilä
IPC分类号： H04K1/10 , H03D1/10 , H04B1/10
CPC分类号： H04L25/0234
摘要： Disclosed is an interpolation procedure for channel estimation that is based on minimum mean-squared error (MMSE) estimates over comb-type pilot signals. The time domain (TD) interpolated channel estimation suppresses, by the use of an advanced noise suppression scheme, the noise jitter that spreads over all or substantially all of the bandwidth of interest. The original channel estimates in the frequency domain (FD) are transformed into the TD by an IFFT function, where in one embodiment a predefined threshold on actual power or accumulative power is used to minimize the noise jitter over the bandwidth. In a further embodiment the channel estimates in the FD are transformed into the TD and the noise jitter is suppressed by preserving the channel estimates at the actual tap delays and setting the others to zeroes. In either embodiment the noise suppressed channel estimates are then transformed into the FD for FD equalization.
摘要翻译：公开了一种基于梳状导频信号的最小均方误差（MMSE）估计的信道估计的内插过程。时域（TD）内插信道估计通过使用高级噪声抑制方案来抑制在感兴趣的所有或基本上所有带宽上传播的噪声抖动。通过IFFT功能将频域（FD）中的原始信道估计变换为TD，其中在一个实施例中，使用实际功率或累积功率的预定义阈值来最小化带宽上的噪声抖动。在另一实施例中，FD中的信道估计被转换为TD，并且通过在实际抽头延迟期间保持信道估计并将其他值设置为零来抑制噪声抖动。在任一实施例中，噪声抑制信道估计然后被变换成用于FD均衡的FD。

7. 发明授权

US07308036B2 Adaptive symbol mapping in mobile system 失效
标题翻译：移动系统中的自适应符号映射
公开(公告)号：US07308036B2
公开(公告)日：2007-12-11
申请号：US10701602
申请日：2003-11-06
申请人： Teemu Sipilä
发明人： Teemu Sipilä
IPC分类号： H04B7/02
CPC分类号： H04L1/0023 , H04B7/0615 , H04L1/0003
摘要： An arrangement are provided to transmit information between a transmitter and a receiver in a mobile system, the transmitter comprising a mapping unit configured to map bits of the information to be transmitted to channel symbols, and at least two transmitting antennas configured to transmit the channel symbols to a radio channel of the mobile system. The mobile system comprises a measuring unit configured to measure the status of the radio channel used for the transmission of information. The mapping unit of the transmitter is configured to map the bits to channel symbols using a mapping scheme that is dependent on the radio channel status measured by the measuring unit.
摘要翻译：提供了一种用于在移动系统中的发射机和接收机之间传输信息的装置，所述发射机包括：映射单元，被配置为映射要发送的信息的比特到信道符号;以及至少两个发送天线，被配置为发送信道符号到移动系统的无线电信道。移动系统包括被配置为测量用于信息传输的无线电信道的状态的测量单元。发射机的映射单元被配置为使用取决于由测量单元测量的无线电信道状态的映射方案将比特映射到信道符号。

8. 发明授权

US07269226B2 Data processing method 有权
标题翻译：数据处理方法
公开(公告)号：US07269226B2
公开(公告)日：2007-09-11
申请号：US10010429
申请日：2001-12-03
申请人： Teemu Sipilä
发明人： Teemu Sipilä
IPC分类号： H04L5/12 , H04L27/06 , G06F11/00 , H03M13/00
CPC分类号： H04L25/0218 , H04L25/03178 , H04L25/03184
摘要： A suboptimal method for searching for a symbol sequence, the method comprising the steps of: determining a channel impulse response; sampling a received signal; selecting at least one of the highest and/or most reliable impulse response values; determining a reference signal using at least one impulse response value and a symbol sequence assumed as transmitted; determining differential terms corresponding to the selected impulse response values for the signal sample and the reference signal; using the determined differential terms in a transition metric for searching for a symbol sequence; forming a survivor path by adding the symbol sequence provided by the transition metric to the survivor path formed so far.
摘要翻译：一种用于搜索符号序列的次优方法，所述方法包括以下步骤：确定信道脉冲响应; 对接收到的信号进行采样; 选择最高和/或最可靠的脉冲响应值中的至少一个; 使用假定为发送的至少一个脉冲响应值和符号序列来确定参考信号; 确定与所选择的脉冲响应值相对应的用于信号样本和参考信号的微分项; 使用所确定的用于搜索符号序列的转换度量中的差分项; 通过将由转换度量提供的符号序列添加到迄今形成的幸存路径来形成幸存路径。

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