公开(公告)号：US20140072830A1

公开(公告)日：2014-03-13

申请号：US13615131

申请日：2012-09-13

申请人： Jeffrey S. Lille ,  Kurt A. Rubin ,  Ricardo Ruiz ,  Lei Wan

发明人： Jeffrey S. Lille ,  Kurt A. Rubin ,  Ricardo Ruiz ,  Lei Wan

IPC分类号： G11B5/84 ,  G11B5/73 ,  B44C1/22

CPC分类号： G11B5/855 ,  B81C1/00031 ,  G03F7/0035 ,  G11B5/743 ,  H01L21/0338 ,  Y10S977/888

摘要： The disclosure relates generally to a method for fabricating a patterned medium. The method includes providing a substrate with an exterior layer under a lithographically patterned surface layer, the lithographically patterned surface layer comprising a first pattern in a first region and a second pattern in a second region, applying a first masking material over the first region, transferring the second pattern into the exterior layer in the second region, forming self-assembled block copolymer structures over the lithographically patterned surface layer, the self-assembled block copolymer structures aligning with the first pattern in the first region, applying a second masking material over the second region, transferring the polymer block pattern into the exterior layer in the first region, and etching the substrate according to the second pattern transferred to the exterior layer in the second region and the polymer block pattern transferred to the exterior layer in the first region.

摘要翻译： 本公开一般涉及一种用于制造图案化介质的方法。 该方法包括在光刻图案化的表面层下提供具有外部层的基底，光刻图案化的表面层包括第一区域中的第一图案和第二区域中的第二图案，在第一区域上施加第一掩蔽材料，转移 在第二区域中的第二图案进入外层，在光刻图案化表面层上形成自组装的嵌段共聚物结构，自组装嵌段共聚物结构与第一区域中的第一图案对准，在第一区域上施加第二掩模材料 第二区域，将聚合物嵌段图案转移到第一区域中的外部层中，并且根据转移到第二区域中的外部层的第二图案和在第一区域中转印到外部层的聚合物嵌段图案来蚀刻基板。

公开(公告)号：US08335152B2

公开(公告)日：2012-12-18

申请号：US12092199

申请日：2005-11-04

申请人： Lei Wan ,  Johan Axnäs

发明人： Lei Wan ,  Johan Axnäs

IPC分类号： H04J11/00

CPC分类号： H04L1/0003 ,  H04L1/0009 ,  H04L1/007 ,  H04L1/0071 ,  H04L1/1819 ,  H04L2001/0098 ,  Y02D50/10

摘要： When transmitting data from a transmission unit to a reception unit over a channel in a wireless communication system, it has been observed that there are inherent losses in throughput, especially for a channel experiencing high channel quality variations over its frequency range. To improve the throughput over such a channel, it is proposed to: estimate the quality of each subchannel of a channel. classify the subchannels into a number of quality groups based on the estimated quality, and select a code rate per quality group. This selected code rate per quality group is then used when a data word to be transmitted is coded. Simulations have shown that by grouping the subchannels into a limited number of groups, for example one to four groups depending on the channel quality variation, a high throughput could be achieved with a minimum of signaling cost in the form of extra overhead.

摘要翻译： 当通过无线通信系统中的信道将数据从传输单元发送到接收单元时，已经观察到吞吐量存在固有损失，特别是对于在其频率范围内经历高信道质量变化的信道。 为了提高这种信道的吞吐量，建议：估计信道的每个子信道的质量，并根据估计的质量将子信道分类成多个质量组，并且选择每个质量组的码率。 然后，当要发送的数据字被编码时，每个质量组的该选择的码率被使用。 模拟已经表明，通过将子信道分组为有限数量的组，例如根据信道质量变化的一到四组，可以以额外开销的形式以最小的信令成本来实现高吞吐量。

公开(公告)号：US20120275420A1

公开(公告)日：2012-11-01

申请号：US13546942

申请日：2012-07-11

申请人： Lei Wan ,  Liang Xia

发明人： Lei Wan ,  Liang Xia

IPC分类号： H04W92/10 ,  H04W72/04

CPC分类号： H04B7/0658 ,  H04B7/024 ,  H04B7/0626 ,  H04B7/065

摘要： Embodiments of the present invention provide a method and user equipment for feeding back multi-cell channel state information. The method for feeding back multi-cell channel state information includes: feeding back channel state information of a serving cell of a user equipment to a network device; exchanging long-term wideband space state information of a neighboring cell of the user equipment with the network device; feeding back inter-cell additional information of the neighboring cell to the network device, where the inter-cell additional information of the neighboring cell includes a code word that optimizes joint channel information, and the joint channel information is generated according to the channel state information of the serving cell, the long-term wideband space state information of the neighboring cell, and the inter-cell additional information of the neighboring cell.

摘要翻译： 本发明的实施例提供了一种用于反馈多小区信道状态信息的方法和用户设备。 用于反馈多小区信道状态信息的方法包括：将用户设备的服务小区的信道状态信息反馈给网络设备; 与网络设备交换用户设备的相邻小区的长期宽带空间状态信息; 将相邻小区的小区间附加信息反馈到网络设备，其中相邻小区的小区间附加信息包括优化联合信道信息的码字，并且根据信道状态信息生成联合信道信息 服务小区的长期宽带空间状态信息，以及相邻小区的小区间附加信息。

公开(公告)号：US20120057484A1

公开(公告)日：2012-03-08

申请号：US13235023

申请日：2011-09-16

申请人： Lei Wan ,  Qiang Li ,  Liang Xia ,  Jingyuan Sun ,  Jianguo Wang

发明人： Lei Wan ,  Qiang Li ,  Liang Xia ,  Jingyuan Sun ,  Jianguo Wang

IPC分类号： H04W24/00 ,  H04L12/26

CPC分类号： H04L1/20 ,  H04B7/024 ,  H04B17/24 ,  H04B17/336 ,  H04L1/0026 ,  H04W72/1231 ,  H04W72/1284

摘要： The present invention provides a method includes: receiving a downlink channel quality indicator or an interference indicator, where the downlink channel quality indicator or the interference indicator is fed back by a UE; estimating a weak interference noise matrix of the UE according to the downlink channel quality indicator or the interference indicator, where the downlink channel quality indicator or the interference indicator is fed back by the UE; obtaining a time-frequency channel matrix of a serving cell and a time-frequency strong interference matrix of a strong interfering cell, and obtaining a time-frequency interference noise matrix of the UE according to the estimated weak interference noise matrix and the time-frequency strong interference matrix; and estimate downlink channel quality according to the time-frequency channel matrix and the time-frequency interference noise matrix.

摘要翻译： 本发明提供一种方法，包括：接收下行链路信道质量指示符或干扰指示符，其中下行链路信道质量指示符或干扰指示符由UE反馈; 根据下行链路信道质量指标或干扰指标估计UE的弱干扰噪声矩阵，其中下行链路信道质量指示符或干扰指示符由UE反馈; 获得服务小区的时频信道矩阵和强干扰小区的时频强干扰矩阵，并根据估计的弱干扰噪声矩阵和时间频率获得UE的时频干扰噪声矩阵 强干涉矩阵; 并根据时频信道矩阵和时频干扰噪声矩阵估计下行链路信道质量。

公开(公告)号：US07961795B2

公开(公告)日：2011-06-14

申请号：US11665782

申请日：2004-10-29

申请人： Zesong Fei ,  Lei Wan ,  Jingming Kuang

发明人： Zesong Fei ,  Lei Wan ,  Jingming Kuang

IPC分类号： H04K1/10

CPC分类号： H04L25/0236 ,  H04L1/0047 ,  H04L1/1607 ,  H04L1/1812 ,  H04L25/023 ,  H04L25/03171 ,  H04L25/03324

摘要： The channel estimation for a current data block is based on a previous data block, where the two data blocks are based on common information. Data symbol hypotheses of the previous data block can be forwarded to a channel estimator and used as known reference symbols when estimating the channel response for the current block. Alternatively, a combination of the data symbol hypotheses and preliminary data symbol estimates of the current block are used as reference symbols in a refined channel estimation for the current block. Data bit hypotheses of the previous block can also be input as a priori data in a preliminary demodulation of the current block. The demodulator output is used as reference data in a refined channel estimation for the current block. The technology is well-adapted for use in connection with Hybrid ARQ.

摘要翻译： 当前数据块的信道估计基于先前的数据块，其中两个数据块基于公共信息。 当估计当前块的信道响应时，先前数据块的数据符号假设可被转发到信道估计器并用作已知参考符号。 或者，将当前块的数据符号假设和初步数据符号估计的组合用作当前块的精细信道估计中的参考符号。 在当前块的初步解调中，先前块的数据比特假设也可以作为先验数据输入。 解调器输出用作当前块的精细信道估计中的参考数据。 该技术适用于混合ARQ。

公开(公告)号：US07933350B2

公开(公告)日：2011-04-26

申请号：US11928510

申请日：2007-10-30

申请人： Yin Liu ,  Lei Wan

发明人： Yin Liu ,  Lei Wan

IPC分类号： H04K1/10 ,  H04L27/28

CPC分类号： H04L5/0007 ,  H04L1/0021 ,  H04L5/0039 ,  H04L5/0044 ,  H04L5/006 ,  H04L5/0075 ,  H04L5/0094 ,  H04L25/0224 ,  H04W72/08

摘要： Methods and apparatus are disclosed for scheduling sub-carriers in an Orthogonal Frequency Division Multiplexing (OFDM) communication system. In an exemplary method, channel quality metric values for each of a plurality of sub-channels are determined, in view of a selected mobile terminal. For each of two or more threshold levels for the channel quality metric, sub-carrier groups composed of sub-carriers corresponding to sub-channels having channel quality metric values superior to the threshold level are identified, and an estimated data throughput is calculated for each of the identified sub-carrier groups. One or more of the identified sub-carrier groups is allocated to the selected mobile terminal according to the estimated data throughputs.

摘要翻译： 公开了用于在正交频分复用（OFDM）通信系统中调度子载波的方法和装置。 在示例性方法中，鉴于所选择的移动终端，确定多个子信道中的每一个的信道质量度量值。 对于信道质量度量的两个或更多个阈值级别中的每一个，识别由与具有优于阈值电平的信道质量度量值相对应的子信道对应的子载波组成的子载波组，并且计算每个信道质量度量值的估计数据吞吐量 的识别子载体组。 所识别的子载波组中的一个或多个根据估计的数据吞吐量被分配给所选择的移动终端。

公开(公告)号：US20100323739A1

公开(公告)日：2010-12-23

申请号：US12521667

申请日：2006-12-27

申请人： Lei Wan ,  Bo Göransson

发明人： Lei Wan ,  Bo Göransson

IPC分类号： H04W72/06

CPC分类号： H04L1/0026 ,  H04W28/18

摘要： The invention relates to control of link resources in a wireless telecommunications system, in which instant channel feedback information is transmitted from a mobile terminal in response to receipt of a selection message from a basestation, and the instant channel feedback information is used for real-time resource allocation and adaptation at the basestation. The feedback information includes channel quality information derived from pilot signals and from pre-allocated transmission weights.

摘要翻译： 本发明涉及无线电信系统中链路资源的控制，其中响应于从基站接收到选择消息，从移动终端发送即时信道反馈信息，并且即时信道反馈信息用于实时 基地资源配置和适应。 反馈信息包括从导频信号和预先分配的传输权重导出的信道质量信息。

公开(公告)号：US20100220608A1

公开(公告)日：2010-09-02

申请号：US12293727

申请日：2007-03-20

申请人： Per Skillermark ,  Lei Wan ,  Jingyi Liao

发明人： Per Skillermark ,  Lei Wan ,  Jingyi Liao

IPC分类号： H04L12/26

CPC分类号： H04B7/061 ,  H04B7/0417 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/06 ,  H04L1/1671 ,  H04L1/1812 ,  H04L1/1825 ,  H04L1/1854 ,  H04L1/1893

摘要： The present invention relates to methods and arrangements in a multi-antenna radio communication system, in particular to methods and arrangements for improved multiple HARQ transmission in such systems. While HARQ transmission schemes, as known in the art, only can consider the fact whether or not a transmission attempt has been successful the present invention provides a HARQ retransmission scheme that considers the reception quality for already performed transmissions of a same data packet when selecting a resource allocation for necessary re-transmissions. Resource allocation for retransmissions is based on a pre-defined metric indicating a quality of the reception of the previous transmission attempts. Such a metric can be derived from a quality measure derived in the receiver unit, e.g. a CQI or CSI-based value, or an appropriate measure of the mutual information, e.g. the accumulated conditional mutual information (ACMI).

摘要翻译： 本发明涉及多天线无线电通信系统中的方法和装置，特别涉及用于改进这种系统中的多个HARQ传输的方法和装置。 尽管本领域已知的HARQ传输方案只能考虑传输尝试是否成功的事实，但是本发明提供了一种HARQ重传方案，其在选择一个或多个节点时考虑已经执行的相同数据分组的传输的接收质量 资源分配进行必要的重新传输。 用于重传的资源分配基于指示先前传输尝试的接收质量的预定义度量。 这样的度量可以从在接收机单元中导出的质量度量导出，例如， 基于CQI或基于CSI的值，或相互信息的适当度量，例如。 累积条件互信息（ACMI）。

公开(公告)号：US20100120441A1

公开(公告)日：2010-05-13

申请号：US12532593

申请日：2008-03-11

申请人： Lei Wan ,  George Jöngren ,  David Astely

发明人： Lei Wan ,  George Jöngren ,  David Astely

IPC分类号： H04W40/00

CPC分类号： H04W16/24 ,  H01Q1/246 ,  H04B7/0617

摘要： A mechanism for increasing a sectorization order in a first sector of an antenna array. The object is achieved by a method in a network node. The network node and antenna array are comprised in a wireless communication system. The antenna array is deployed with a first sectorization. The network node comprises a first number of signal connections. Each signal connection is adapted to transmit and receive signals. The method comprises the step of splitting the first number of connections into a number of groups. Each one of the respective connection groups corresponds to one respective virtual sector resulting in a number of virtual sectors. The method further comprises the step of mapping the number of virtual sectors to the first sector, such that the first sector is split into the number of virtual sectors.

摘要翻译： 一种用于增加天线阵列的第一扇区中的扇区化顺序的机制。 该对象通过网络节点中的方法来实现。 网络节点和天线阵列包括在无线通信系统中。 天线阵列以第一扇区化部署。 网络节点包括第一数量的信号连接。 每个信号连接适于发送和接收信号。 该方法包括将第一数目的连接分成多个组的步骤。 各个连接组中的每一个对应于一个相应的虚拟扇区，导致多个虚拟扇区。 该方法还包括将虚拟扇区的数量映射到第一扇区的步骤，使得第一扇区被分割成虚拟扇区的数量。

公开(公告)号：US07697948B2

公开(公告)日：2010-04-13

申请号：US11577540

申请日：2004-10-29

申请人： Lei Wan ,  Magnus Almgren ,  Shiau-He Shawn Tsai

发明人： Lei Wan ,  Magnus Almgren ,  Shiau-He Shawn Tsai

IPC分类号： H04B7/00 ,  H04Q7/20

CPC分类号： H04W28/18 ,  H04L1/1812 ,  H04L1/20 ,  H04W24/10 ,  H04W72/00 ,  H04W72/085

摘要： A method of adapting resource allocation parameters to reach one or more quality targets with improved accuracy is proposed. New information measurements based on the so-called mutual information, preferably at block-level, are introduced. The MI-based information measurements of a previous transmission, the channel prediction of a subsequent transmission and one or more quality requirements, are used to determine the amount and type of resources, e.g. time, frequency and power resources, that are to be used for the subsequent transmission. The resource allocation can for example comprise power allocation and/or link adaptation and the invention enables an advantageous implementation with cooperative link-adaptation and power allocation. The proposed method is useful in connection with ARQ/HARQ retransmissions.

摘要翻译： 提出了一种使资源分配参数适应达到一个或多个质量目标的方法，其精度提高。 引入了基于所谓的互信息的新信息测量，优选在块级。 先前传输的基于MI的信息测量，后续传输的信道预测和一个或多个质量要求被用于确定资源的数量和类型，例如， 时间，频率和功率资源，用于后续传输。 资源分配可以例如包括功率分配和/或链路适配，并且本发明使得能够利用协作链路适配和功率分配实现有利的实现。 所提出的方法在ARQ / HARQ重传中是有用的。