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1. 发明申请

US20130148640A1 Mechanism for Controlling Data Transmission in Fragmentation Transmission Mode 有权
标题翻译：控制碎片传输模式下数据传输的机制
公开(公告)号：US20130148640A1
公开(公告)日：2013-06-13
申请号：US13315923
申请日：2011-12-09
申请人： Wei LI , Jorma Lilleberg , Sami-Jukka Hakola , Samuli Turtinen , Timo Koskela , Anna Pantelidou
发明人： Wei LI , Jorma Lilleberg , Sami-Jukka Hakola , Samuli Turtinen , Timo Koskela , Anna Pantelidou
IPC分类号： H04W84/02
CPC分类号： H04L1/1809 , H04L1/1854
摘要： There is provided a mechanism for controlling a transmission of data in a fragmentation transmission mode. When fragments are transmitted in a fragmentation transmission mode, it is determined whether the fragment frame is received successfully or whether an acknowledgment message for confirming a successful transmission of the fragment frame is received. In case the acknowledgment for the successful transmission of the one fragment frame is not received, or the fragment is frame is not successfully received, the fragmentation transmission mode is maintained and a retransmission of the fragment frame is initiated.
摘要翻译：提供了一种用于控制分段传输模式下的数据传输的机制。当以分段传输模式发送片段时，确定片段帧是否被成功接收，或者是否接收到用于确认片段帧的成功发送的确认消息。在没有接收到对于一个分段帧的成功发送的确认，或者未成功接收到该分段是帧的情况下，维持分段传输模式，并且启动片段帧的重传。

2. 发明授权

US08718083B2 Mechanism for controlling data transmission in fragmentation transmission mode 有权
标题翻译：用于分段传输模式控制数据传输的机制
公开(公告)号：US08718083B2
公开(公告)日：2014-05-06
申请号：US13315923
申请日：2011-12-09
申请人： Wei Li , Jorma Lilleberg , Sami-Jukka Hakola , Samuli Turtinen , Timo Koskela , Anna Pantelidou
发明人： Wei Li , Jorma Lilleberg , Sami-Jukka Hakola , Samuli Turtinen , Timo Koskela , Anna Pantelidou
IPC分类号： H04L12/413
CPC分类号： H04L1/1809 , H04L1/1854
摘要： There is provided a mechanism for controlling a transmission of data in a fragmentation transmission mode. When fragments are transmitted in a fragmentation transmission mode, it is determined whether the fragment frame is received successfully or whether an acknowledgment message for confirming a successful transmission of the fragment frame is received. In case the acknowledgment for the successful transmission of the one fragment frame is not received, or the fragment is frame is not successfully received, the fragmentation transmission mode is maintained and a retransmission of the fragment frame is initiated.
摘要翻译：提供了一种用于控制分段传输模式下的数据传输的机制。当以分段传输模式发送片段时，确定片段帧是否被成功接收，或者是否接收到用于确认片段帧的成功发送的确认消息。在没有接收到对于一个分段帧的成功发送的确认，或者未成功接收到该分段是帧的情况下，维持分段传输模式，并且启动片段帧的重传。

3. 发明申请

US20080101451A1 Method and Apparatus for Subblock-Wise Frequency Domain Equalization 审中-公开
标题翻译：用于子块智能频域均衡的方法和装置
公开(公告)号：US20080101451A1
公开(公告)日：2008-05-01
申请号：US11733503
申请日：2007-04-10
申请人： Haifeng Wang , Jorma Lilleberg , Wei Li , Ming Chen , Shixin Cheng
发明人： Haifeng Wang , Jorma Lilleberg , Wei Li , Ming Chen , Shixin Cheng
IPC分类号： H03K5/159
CPC分类号： H04L25/03159 , H04L5/0007 , H04L25/0212 , H04L25/0232 , H04L27/2647 , H04L2025/03414
摘要： An approach is provided for subblock-wise frequency domain equalization, wherein a data block of a received signal is segmented into at least two subblocks at a receiving end of a transmission channel. The subblocks are then equalized separately in the frequency domain, and equalized subblocks are combined to obtain an equalized signal. Thereby, Doppler induced interference can be suppressed to achieve enhanced robustness to high Doppler and compensate performance degradation due to rapidly varying channels.
摘要翻译：提供了一种用于子块频域均衡的方法，其中接收信号的数据块在传输信道的接收端被分段成至少两个子块。然后在频域中分别对子块进行均衡，并且组合均衡的子块以获得均衡的信号。因此，可以抑制多普勒感应干扰以实现对高多普勒的增强的鲁棒性并且补偿由于快速变化的信道而导致的性能下降。

4. 发明申请

US20080162902A1 Delayed branch decision in quadrature decomposition with M-searching 有权
标题翻译：通过M搜索在正交分解中延迟分支决策
公开(公告)号：US20080162902A1
公开(公告)日：2008-07-03
申请号：US11706821
申请日：2007-02-12
申请人： Wei Li , Haifeng Wang , Jorma Lilleberg , Ming Chen , Shixin Cheng
发明人： Wei Li , Haifeng Wang , Jorma Lilleberg , Ming Chen , Shixin Cheng
IPC分类号： G06F9/00
CPC分类号： H04L25/03216 , H04L2025/03426
摘要： A QRD-M decomposition includes a first and a sequential second stage, at least. In the first stage, M branches are selected from among more than M branches entering the first stage as survive branches from which multiple decompositions are calculated. In the second stage, more than M branches are selected from among those branches entering the second stage as survive branches from which multiple decompositions are calculated. The symbol of the received signal is decided from a branch that is a survive branch of both the first and second stages. The second stage may be within a window that may include additional stages at which the pruning decision down to M survive branches is delayed. One or more windows may be used in a single QRD-M decomposition. In an embodiment, all branches entering the second stage are survive branches. It is shown that the marginal increased computational load increases accuracy.
摘要翻译： QRD-M分解至少包括第一和第二阶段。在第一阶段，从分支进入第一阶段的M个分支中选出M个分支作为计算多个分解的生存分支。在第二阶段，从进入第二阶段的那些分支中选出超过M个分支作为计算多重分解的生存分支。接收信号的符号由作为第一和第二级的存活分支的分支决定。第二阶段可能在一个窗口内，可能包括另外一个阶段，在此阶段，由M延续出来的剪枝决定被延迟。单个QRD-M分解中可以使用一个或多个窗口。在一个实施例中，进入第二阶段的所有分支都是能够分支的。显示边际增加的计算负载提高了精度。

5. 发明授权

US07844008B2 Delayed branch decision in quadrature decomposition with M-searching 有权
标题翻译：通过M搜索在正交分解中延迟分支决策
公开(公告)号：US07844008B2
公开(公告)日：2010-11-30
申请号：US11706821
申请日：2007-02-12
申请人： Wei Li , Haifeng Wang , Jorma Lilleberg , Ming Chen , Shixin Cheng
发明人： Wei Li , Haifeng Wang , Jorma Lilleberg , Ming Chen , Shixin Cheng
IPC分类号： H04L5/12 , H04L23/02
CPC分类号： H04L25/03216 , H04L2025/03426
摘要： A QRD-M decomposition includes a first and a sequential second stage, at least. In the first stage, M branches are selected from among more than M branches entering the first stage as survive branches from which multiple decompositions are calculated. In the second stage, more than M branches are selected from among those branches entering the second stage as survive branches from which multiple decompositions are calculated. The symbol of the received signal is decided from a branch that is a survive branch of both the first and second stages. The second stage may be within a window that may include additional stages at which the pruning decision down to M survive branches is delayed. One or more windows may be used in a single QRD-M decomposition. In an embodiment, all branches entering the second stage are survive branches. It is shown that the marginal increased computational load increases accuracy.
摘要翻译： QRD-M分解至少包括第一和第二阶段。在第一阶段，从分支进入第一阶段的M个分支中选出M个分支作为计算多个分解的生存分支。在第二阶段，从进入第二阶段的那些分支中选出超过M个分支作为计算多重分解的生存分支。接收信号的符号由作为第一和第二级的存活分支的分支决定。第二阶段可能在一个窗口内，可能包括另外一个阶段，在此阶段，由M延续出来的剪枝决定被延迟。单个QRD-M分解中可以使用一个或多个窗口。在一个实施例中，进入第二阶段的所有分支都是能够分支的。显示边际增加的计算负载提高了精度。

6. 发明申请

US20080187066A1 Detection method and apparatus for a multi-stream MIMO 审中-公开
标题翻译：多流MIMO的检测方法和装置
公开(公告)号：US20080187066A1
公开(公告)日：2008-08-07
申请号：US11826360
申请日：2007-07-13
申请人： Haifeng Wang , Jorma Lilleberg , Wei Li , Ming Chen , Shixin Cheng
发明人： Haifeng Wang , Jorma Lilleberg , Wei Li , Ming Chen , Shixin Cheng
IPC分类号： H04L1/02
CPC分类号： H04L1/0656 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L5/0046 , H04L25/0246 , H04L25/03216 , H04L2025/03414 , H04L2025/03426
摘要： In a multiple-input multiple output (MIMO) system, high-rate data transmission is achieved by dividing the original data stream into several parallel data substreams, each of which is transmitted from a corresponding transmit antenna (spatial multiplexing) and received by multiple receive antennas. The number of spatial streams depends on the number of antennas. In a receiver, a search-tree based QR Decomposition-M (QRD-M) algorithm is used. According to the invention, multiple spatial signal streams received from a MIMO channel are pre-ordered based on modulation alphabets of said received spatial signal streams prior to performing a QRD-M detection.
摘要翻译：在多输入多输出（MIMO）系统中，通过将原始数据流划分成若干并行数据子流实现高速率数据传输，每个子流从相应的发射天线（空间复用）发送并通过多个接收天线。空间流的数量取决于天线的数量。在接收机中，使用基于搜索树的QR分解-M（QRD-M）算法。根据本发明，在执行QRD-M检测之前，从MIMO信道接收的多个空间信号流是基于所接收的空间信号流的调制字母预先排序的。

7. 发明授权

US08243756B2 Methods, computer program products and apparatus providing improved quantization 有权
标题翻译：方法，提供改进量化的计算机程序产品和装置
公开(公告)号：US08243756B2
公开(公告)日：2012-08-14
申请号：US11827717
申请日：2007-07-12
申请人： Arnab Chakrabarti , Ashutosh Sabharwal , Behnaam Aazhang , Jorma Lilleberg
发明人： Arnab Chakrabarti , Ashutosh Sabharwal , Behnaam Aazhang , Jorma Lilleberg
IPC分类号： H04J3/18 , H04B7/02 , H04L1/02 , H04L27/18
CPC分类号： H03M7/30
摘要： Thus, the exemplary embodiments of the invention describe methods, computer program products and apparatus that provide improved quantization, as may be useful within the context of a communication system (e.g., a wireless communication system) that has a relay node. In one non-limiting, exemplary embodiment, a method includes: receiving a transmission having source data from an information source; determining an estimate of the source data using a quantization technique based on maximizing data throughput; and transmitting a message including the determined estimate towards an information destination.
摘要翻译：因此，本发明的示例性实施例描述了在具有中继节点的通信系统（例如，无线通信系统）的上下文中可能有用的提供改进的量化的方法，计算机程序产品和装置。在一个非限制性的示例性实施例中，一种方法包括：从信息源接收具有源数据的传输; 使用基于最大化数据吞吐量的量化技术来确定源数据的估计; 以及向所述信息目的地发送包括所确定的估计的消息。

8. 发明授权

US07564906B2 OFDM transceiver structure with time-domain scrambling 失效
标题翻译：具有时域扰频的OFDM收发器结构
公开(公告)号：US07564906B2
公开(公告)日：2009-07-21
申请号：US10781041
申请日：2004-02-17
申请人： Haifeng Wang , Jorma Lilleberg
发明人： Haifeng Wang , Jorma Lilleberg
IPC分类号： H04L27/28
CPC分类号： H04L27/2602 , H04L25/03866
摘要： A method and transceiver for wireless multicarrier communications. At the transmitter side, conventional OFDM symbols, after inverse fast Fourier Transform, are scrambled in time domain and then guard-interval (GI) inserted, up-converted at the carrier frequency for transmission. At the receiver side, after GI removal and frequency domain channel equalization, the received signal is transformed into time-domain by inverse fast Fourier Transform. The time-domain equalized signal is descrambled in time domain and then transformed back to the frequency domain before it is rate-matched, demodulated and decoded. This time-domain scrambling and descrambling method can be used in a wireless OFDM system such as WLAN, cellular OFDM, and MC-CDMA.
摘要翻译：一种用于无线多载波通信的方法和收发器。在发射机侧，在快速傅里叶逆变换之后的常规OFDM符号在时域中加扰，然后在载波频率上插入保护间隔（GI）进行上变频以进行传输。在接收机侧，GI去除和频域信道均衡后，通过快速傅里叶逆变换将接收信号转换为时域。时域均衡信号在时域中被解扰，然后在速率匹配，解调和解码之前被转换回到频域。该时域加扰和解扰方法可用于诸如WLAN，蜂窝OFDM和MC-CDMA的无线OFDM系统中。

9. 发明授权

US06700926B1 Method and apparatus providing bit-to-symbol mapping for space-time codes 失效
标题翻译：为时空代码提供比特到符号映射的方法和装置
公开(公告)号：US06700926B1
公开(公告)日：2004-03-02
申请号：US09710936
申请日：2000-11-13
申请人： Markku J. Heikkila , Jorma Lilleberg
发明人： Markku J. Heikkila , Jorma Lilleberg
IPC分类号： H04B138
CPC分类号： H03M13/25 , H04L1/0618
摘要： A method for optimizing a bit-to-symbol mapping operation. The method has steps of (a) determining a most probable symbol selection error made during a space-time decoding operation; and (b) selecting a bits-to-symbol mapper such that a bit-to-symbol mapping step results in a most probable symbol selection error, made during a space-time decoding operation, causes a minimal number of bit errors. The bits-to-symbol mapping step can be carried out so as to minimize an average number of bit errors resulting from an occurrence of the most probable symbol selection error, as well as from an occurrence of at least a second most probable symbol selection error, during the space-time decoding operation. A space-time coded communications system that operates in accordance with the method is also disclosed.
摘要翻译：用于优化位到符号映射操作的方法。该方法具有以下步骤：（a）确定在空时解码操作期间产生的最可能的符号选择错误; 以及（b）选择比特到符号映射器，使得比特到符号映射步骤导致在空时解码操作期间产生的最可能的符号选择错误导致最小数量的位错误。可以执行比特到符号映射步骤，以便最小化由最可能的符号选择错误的发生导致的平均比特错误数，以及从至少第二最可能符号选择错误的发生，在空时解码操作期间。还公开了根据该方法操作的时空编码通信系统。

10. 发明授权

US5881097A Calculating estimates and decisions of parameters for receiver 失效
标题翻译：计算接收机参数的估计和决策
公开(公告)号：US5881097A
公开(公告)日：1999-03-09
申请号：US742064
申请日：1996-10-31
申请人： Jorma Lilleberg , Markku Juntti
发明人： Jorma Lilleberg , Markku Juntti
IPC分类号： H04B1/707 , H04B15/00 , H04K1/00 , H04L27/30
CPC分类号： H04B1/707
摘要： A receiving method and a receiver comprising circuit elements that are arranged to calculate estimates for parameters of a received signal in two or more stages, for processing the signal iteratively by means of an observation time-slot of a given length and containing a plurality of samples, and for sliding the observation time-slot over the received samples. In order to avoid complicated matrix operations, the receiver comprises circuit elements for sliding the observation time-slot in such a way that successive observation time-slots partly overlap, and for employing, upon calculating the estimates and decisions of parameters in each observation time-slot, estimates provided by the previous observation time-slot as initial values for those samples that fall within the previous observation time-slot, and estimates provided by the previous stage for those samples that do not fall within the previous observation time-slot.
摘要翻译：一种接收方法和接收机，包括电路元件，其被布置成以两级或更多级计算接收信号的参数的估计，用于通过给定长度的观测时隙迭代地处理信号并且包含多个采样并且用于在所接收的样本上滑动观察时隙。为了避免复杂的矩阵运算，接收机包括用于滑动观测时隙的电路元件，使得连续观测时隙部分重叠，并且在计算每个观测时间段中的参数的估计和决定时，时隙，由先前观察时隙提供的估计值作为落在先前观察时隙内的那些采样的初始值，以及由前一级为不在前一观测时隙内的那些采样提供的估计。

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