公开(公告)号：US07697569B2

公开(公告)日：2010-04-13

申请号：US11916186

申请日：2006-06-02

申请人： Feng Li ,  Yingmin Wang ,  Nan Zhong ,  Guiliang Yang

发明人： Feng Li ,  Yingmin Wang ,  Nan Zhong ,  Guiliang Yang

IPC分类号： H04J13/00

CPC分类号： H04L25/0228 ,  H04B1/7107 ,  H04L25/0204

摘要： A multi-code-set channel estimation method in a time-slot CDMA system having steps of: A. performing uni-code-set channel estimations and obtaining channel estimation result; B. extracting a maximum interference tap from the channel estimation result; C. reproducing interference components suffered respectively by response signals corresponding respectively to the plurality of code-sets from the maximum interference tap; D. canceling the interference components, and obtaining a pure channel estimation result of a signal corresponding to each code-set; E. determining whether a predetermined number of iterations has been performed, if so, outputting the result of each uni-code-set channel estimation; otherwise, taking the pure channel estimation result of the signal corresponding to each code-set as the channel estimation result of the code-set to be processed in the next iteration, and returning to step B. Due to the present invention, a multi-code-set joint channel estimation with high performance can be implemented simply and effectively.

摘要翻译： 一种具有以下步骤的时隙CDMA系统中的多码集信道估计方法：A.执行单码组信道估计并获得信道估计结果; B.从信道估计结果中提取最大干扰抽头; C.分别通过来自最大干扰抽头分别对应于多个代码集的响应信号来再现干扰分量; D.消除干扰分量，并获得与每个码集相对应的信号的纯信道估计结果; E.确定是否已经执行了预定数量的迭代，如果是，则输出每个单码组信道估计的结果; 否则，将与每个码集相对应的信号的纯信道估计结果作为要在下一次迭代中处理的码集的信道估计结果，并返回到步骤B.由于本发明， 具有高性能的码集联合信道估计可以简单有效地实现。

公开(公告)号：US20080310455A1

公开(公告)日：2008-12-18

申请号：US11916186

申请日：2006-06-02

申请人： Feng Li ,  Yingmin Wang ,  Nan Zhong ,  Guiliang Yang

发明人： Feng Li ,  Yingmin Wang ,  Nan Zhong ,  Guiliang Yang

IPC分类号： H04J13/00

CPC分类号： H04L25/0228 ,  H04B1/7107 ,  H04L25/0204

摘要： A multi-code-set channel estimation method in a time-slot CDMA system having steps of: A. performing uni-code-set channel estimations and obtaining channel estimation result; B. extracting a maximum interference tap from the channel estimation result; C. reproducing interference components suffered respectively by response signals corresponding respectively to the plurality of code-sets from the maximum interference tap; D. canceling the interference components, and obtaining a pure channel estimation result of a signal corresponding to each code-set; E. determining whether a predetermined number of iterations has been performed, if so, outputting the result of each uni-code-set channel estimation; otherwise, taking the pure channel estimation result of the signal corresponding to each code-set as the channel estimation result of the code-set to be processed in the next iteration, and returning to step B. Due to the present invention, a multi-code-set joint channel estimation with high performance can be implemented simply and effectively.

摘要翻译： 一种具有以下步骤的时隙CDMA系统中的多码集信道估计方法：A.执行单码组信道估计并获得信道估计结果; B.从信道估计结果中提取最大干扰抽头; C.分别通过来自最大干扰抽头分别对应于多个代码集的响应信号来再现干扰分量; D.消除干扰分量，并获得与每个码集相对应的信号的纯信道估计结果; E.确定是否已经执行了预定数量的迭代，如果是，则输出每个单码组信道估计的结果; 否则，将与每个码集相对应的信号的纯信道估计结果作为要在下一次迭代中处理的码集的信道估计结果，并返回到步骤B.由于本发明， 具有高性能的码集联合信道估计可以简单有效地实现。

公开(公告)号：US20080167030A1

公开(公告)日：2008-07-10

申请号：US11969790

申请日：2008-01-04

申请人： Feng Li ,  Jianxun Sun ,  Yingmin Wang ,  Guiliang Yang ,  Tiezhu Xu

发明人： Feng Li ,  Jianxun Sun ,  Yingmin Wang ,  Guiliang Yang ,  Tiezhu Xu

IPC分类号： H04Q7/20

CPC分类号： H04W28/18 ,  H04B1/7105 ,  H04B2201/70702 ,  H04B2201/709709 ,  H04L25/0202 ,  H04W24/00

摘要： Finding a channel impulse response estimation window in a current cell for at least one mobile terminal in a neighboring cell is disclosed. This can serve to mitigate interference caused by mobile terminals in neighboring cells in and among communications ongoing in a current cell. In one example, a method for A method for determining such a channel impulse response estimation window includes presetting, in the neighboring cell, at least two channel impulse response peak locations of respective mobile terminals in first and second predetermined periods with a predetermined peak location change pattern, and then upon receiving communication from a mobile terminal of the neighboring cell, analyzing channel impulse responses to identify the peak location change pattern with regard to first and second peak locations. The method further includes identifying a variation range for a channel impulse response of a primary path of the mobile terminal, and determining a channel impulse response estimation window for the mobile terminal based on the identified variation range and a preferred estimation window size.

摘要翻译： 公开了在相邻小区中的至少一个移动终端的当前小区中的信道脉冲响应估计窗口。 这可以用于减轻当前小区中正在进行的通信中的相邻小区中的移动终端造成的干扰。 在一个示例中，用于确定这样的信道脉冲响应估计窗口的A方法的方法包括在相邻小区中预定在第一和第二预定时段中各个移动终端的至少两个信道脉冲响应峰值位置具有预定的峰值位置变化 然后在从相邻小区的移动终端接收到通信时，分析信道脉冲响应以识别关于第一和第二峰位置的峰位置改变模式。 该方法还包括识别移动终端的主要路径的信道脉冲响应的变化范围，以及基于所识别的变化范围和优选估计窗口大小来确定移动终端的信道脉冲响应估计窗口。

公开(公告)号：US08116794B2

公开(公告)日：2012-02-14

申请号：US11969790

申请日：2008-01-04

申请人： Feng Li ,  Jianxun Sun ,  Yingmin Wang ,  Guiliang Yang ,  Tiezhu Xu

发明人： Feng Li ,  Jianxun Sun ,  Yingmin Wang ,  Guiliang Yang ,  Tiezhu Xu

IPC分类号： H04B7/00

CPC分类号： H04W28/18 ,  H04B1/7105 ,  H04B2201/70702 ,  H04B2201/709709 ,  H04L25/0202 ,  H04W24/00

摘要： Finding a channel impulse response estimation window in a current cell for at least one mobile terminal in a neighboring cell is disclosed. This can serve to mitigate interference caused by mobile terminals in neighboring cells in and among communications ongoing in a current cell. In one example, a method for A method for determining such a channel impulse response estimation window includes presetting, in the neighboring cell, at least two channel impulse response peak locations of respective mobile terminals in first and second predetermined periods with a predetermined peak location change pattern, and then upon receiving communication from a mobile terminal of the neighboring cell, analyzing channel impulse responses to identify the peak location change pattern with regard to first and second peak locations. The method further includes identifying a variation range for a channel impulse response of a primary path of the mobile terminal, and determining a channel impulse response estimation window for the mobile terminal based on the identified variation range and a preferred estimation window size.

摘要翻译： 公开了在相邻小区中的至少一个移动终端的当前小区中的信道脉冲响应估计窗口。 这可以用于减轻当前小区中正在进行的通信中的相邻小区中的移动终端造成的干扰。 在一个示例中，用于确定这样的信道脉冲响应估计窗口的A方法的方法包括在相邻小区中预定在第一和第二预定时段中各个移动终端的至少两个信道脉冲响应峰值位置具有预定的峰值位置变化 然后在从相邻小区的移动终端接收到通信时，分析信道脉冲响应以识别关于第一和第二峰位置的峰位置改变模式。 该方法还包括识别移动终端的主要路径的信道脉冲响应的变化范围，以及基于所识别的变化范围和优选估计窗口大小来确定移动终端的信道脉冲响应估计窗口。

公开(公告)号：US20080310372A1

公开(公告)日：2008-12-18

申请号：US11914220

申请日：2006-04-30

申请人： Feng Li ,  Guiliang Yang ,  Nan Zhong

发明人： Feng Li ,  Guiliang Yang ,  Nan Zhong

IPC分类号： H04B7/216

CPC分类号： G01S3/74 ,  H04B1/7115

摘要： The present invention discloses a method for estimating DOA of a terminal in multiple co-frequency cells, including the steps of: A. obtaining a channel estimation result of at least one terminal expecting a calculation of DOA in an expecting co-frequency cell; B. performing a Direction-of-Arrival estimation for the expecting terminal in the expecting cell based on the channel estimation result through a DOA estimating method with a wave beam scan, a DOA estimating method with a maximum power path, or a DOA estimating method with a primary eigenvector. With the channel estimations of the multiple cells in the invention, accurate channel estimation results of the respective cells may be provided, from which the channel estimation result of the expecting terminal is selected.

摘要翻译： 本发明公开了一种用于估计多个同频小区中的终端的DOA的方法，包括以下步骤：获得期望的同频小区中期望的DOA计算的至少一个终端的信道估计结果; B.通过具有波束扫描的DOA估计方法，具有最大功率路径的DOA估计方法或DOA估计方法，基于所述信道估计结果来执行预期小区中期望终端的到达方向估计 具有主要特征向量。 利用本发明的多个小区的信道估计，可以提供各个小区的准确的信道估计结果，从中选择期望终端的信道估计结果。

公开(公告)号：US08054785B2

公开(公告)日：2011-11-08

申请号：US11914220

申请日：2006-04-30

申请人： Feng Li ,  Guiliang Yang ,  Nan Zhong

发明人： Feng Li ,  Guiliang Yang ,  Nan Zhong

IPC分类号： G01R31/08 ,  H04W72/00

CPC分类号： G01S3/74 ,  H04B1/7115

摘要： The present invention discloses a method for estimating DOA of a terminal in multiple co-frequency cells, including the steps of: A. obtaining a channel estimation result of at least one terminal expecting a calculation of DOA in an expecting co-frequency cell; B. performing a Direction-of-Arrival estimation for the expecting terminal in the expecting cell based on the channel estimation result through a DOA estimating method with a wave beam scan, a DOA estimating method with a maximum power path, or a DOA estimating method with a primary eigenvector. With the channel estimations of the multiple cells in the invention, accurate channel estimation results of the respective cells may be provided, from which the channel estimation result of the expecting terminal is selected.

摘要翻译： 本发明公开了一种用于估计多个同频小区中的终端的DOA的方法，包括以下步骤：获得期望的同频小区中期望的DOA计算的至少一个终端的信道估计结果; B.通过具有波束扫描的DOA估计方法，具有最大功率路径的DOA估计方法或DOA估计方法，基于所述信道估计结果来执行预期小区中期望终端的到达方向估计 具有主要特征向量。 利用本发明的多个小区的信道估计，可以提供各个小区的准确的信道估计结果，从中选择期望终端的信道估计结果。

公开(公告)号：US20070058701A1

公开(公告)日：2007-03-15

申请号：US10562523

申请日：2004-07-29

申请人： Yingmin Wang ,  Guiliang Yang ,  Chengguo Sun

发明人： Yingmin Wang ,  Guiliang Yang ,  Chengguo Sun

IPC分类号： H04B1/00

CPC分类号： H04B1/7105 ,  H04B1/7093 ,  H04B1/712

摘要： The present invention discloses a method for detecting orthogonal code CDMA signal implemented mainly through the following steps: estimating the total power of interference to the multi-path signals; performing matched filtering on the multi-path signals and performing maximum ratio combining on the multi-path signals by utilizing the total power of interference to the multi-path signals, to obtain the optimized matched filtering result; and performing joint detection on the optimized matched filtering result. There are two schemes for implementing: if the optimized matched filtering detection scheme is used, only the first two main steps are executed; if the joint detection scheme is used, all of the three steps are executed. In either of above two schemes, the interference code channels involved in the estimation of total power of interference to the multi-path signals are need to be selected, i.e., all of the code channels in the serving cell or the code channels in the serving cell which are not performed joint detection on are selected. As the present invention takes full advantage of the characteristic of orthogonal code as well as the channel estimation result, system performance can be improved at a lower price. The present invention is especially suitable for terminal devices in an orthogonal code Code Division Multiple Access system.

摘要翻译： 本发明公开了一种用于检测正交码CDMA信号的方法，主要通过以下步骤实现：估计对多径信号的干扰总功率; 对多路径信号执行匹配滤波，并通过利用多路径信号的总干扰功率对多径信号进行最大比组合，以获得优化的匹配滤波结果; 对优化的匹配滤波结果进行联合检测。 有两种实现方案：如果使用优化的匹配过滤检测方案，只执行前两个主要步骤; 如果使用联合检测方案，则执行所有三个步骤。 在上述两种方案中的任一方面中，需要选择涉及对多路径信号的总干扰功率估计所涉及的干扰码信道，即服务小区中的所有码信道或服务中的码信道 选择不执行关联检测的单元。 由于本发明充分利用正交码的特征以及信道估计结果，可以以更低的价格提高系统性能。 本发明特别适用于正交码分多址系统中的终端设备。

公开(公告)号：US08180360B2

公开(公告)日：2012-05-15

申请号：US11994770

申请日：2006-06-29

申请人： Guiliang Yang ,  Shaohui Sun ,  Yingmin Wang

发明人： Guiliang Yang ,  Shaohui Sun ,  Yingmin Wang

IPC分类号： H04W72/00 ,  H04W4/00

CPC分类号： H04W28/20 ,  H04W72/02 ,  H04W72/0453 ,  H04W72/085

摘要： The present invention discloses a method of allocating downlink traffic channel resources for multi-carrier HSDPA, and the method includes: first of all, selecting a carrier with the optimum channel condition; determining whether the carrier meets the resource allocation demand of a downlink traffic channel, if yes, allocating resources that meet the downlink traffic channel on the carrier; otherwise, allocating the available resources of the carrier to the downlink traffic channel, and selecting a carrier with the optimum channel condition from the remaining carriers for resource allocation according to the remaining resource allocation demand of the downlink traffic channel. The present invention provides, according to the transmission characteristic of the existing HSDPA multi-carrier, a method for allocating downlink traffic channel resources, which method is applicable for packet data transmission of the multi-carrier HSDPA.

摘要翻译： 本发明公开了一种为多载波HSDPA分配下行业务信道资源的方法，该方法包括：首先，选择具有最优信道条件的载波; 确定所述载波是否满足下行链路业务信道的资源分配需求，如果是，则在所述载波上分配满足所述下行业务信道的资源; 否则，将载波的可用资源分配给下行业务信道，并根据下行业务信道的剩余资源分配需求从剩余载波中选择具有最佳信道状态的载波进行资源分配。 本发明根据现有HSDPA多载波的传输特性提供一种分配下行业务信道资源的方法，该方法适用于多载波HSDPA的分组数据传输。

公开(公告)号：US08081696B2

公开(公告)日：2011-12-20

申请号：US11994721

申请日：2006-06-30

申请人： Shaohui Sun ,  Yingmin Wang ,  Guiliang Yang

发明人： Shaohui Sun ,  Yingmin Wang ,  Guiliang Yang

IPC分类号： H04L5/12

CPC分类号： H04L27/2601 ,  H04L1/0013 ,  H04L1/0041 ,  H04L1/0071 ,  H04L1/0075 ,  H04L1/1812 ,  H04L1/1893

摘要： Three channel coding schemes for multi-carrier HSDPA packet data transmission are disclosed. The first scheme includes: dividing data into N groups (S210); performing CRC attachment, code block segmentation, channel coding and rate matching on each group of data respectively (S220); scrambling and interleaving the N groups of data unitedly, and then dividing the data into N groups again to perform QAM constellation rearrangement and then map to physical channels of respective carriers for transmission. The second scheme includes: dividing data to be sent into groups (S510); and sending each group of data via a physical channel of a carrier after coding it according to single-carrier HSDPA (S520). The third scheme includes: sending N carrier channels as a whole to a physical layer to perform processing from CRC attachment to QAM constellation rearrangement (S710); dividing the processed data into groups and mapping them to respective carrier channels for transmission (S720).

摘要翻译： 公开了用于多载波HSDPA分组数据传输的三信道编码方案。 第一种方案包括：将数据划分成N组（S210）; 分别对每组数据执行CRC附件，码块分割，信道编码和速率匹配（S220）; 对N组数据进行加扰和交织，然后再次将数据划分成N组进行QAM星座重排，然后映射到各个载波的物理信道进行传输。 第二方案包括：将要发送的组数据划分成组（S510）; 并且在根据单载波HSDPA进行编码之后，经由载波的物理信道发送每组数据（S520）。 第三方案包括：将N个载波信道作为整体发送到物理层，以执行从CRC附着到QAM星座重排的处理（S710）; 将处理的数据分组并将其映射到相应的载波信道以进行传输（S720）。

公开(公告)号：US07936729B2

公开(公告)日：2011-05-03

申请号：US11721323

申请日：2005-12-07

申请人： Changguo Sun ,  Yingmin Wang ,  Guiliang Yang

发明人： Changguo Sun ,  Yingmin Wang ,  Guiliang Yang

IPC分类号： H04W4/00

CPC分类号： H04W16/00 ,  H04J13/16 ,  H04W16/24

摘要： The invention discloses a distribution method of channelization code in code division multiple access system, which including: A. the spread spectrum codes distributed to every sector and the correlated coefficients between the spread spectrum codes distributed to every neighboring sector are calculated according to the cellular codes and the channelization codes distributed to every sector, when the network is programmed; B. every sector is divided into different regions and the edge region of every sector is formed; C. the priority of which every channelization code is at the edge region of every sector is decided according to the correlated coefficients between the spread spectrum codes distributed to every neighboring sector; D. the position information of user is real-time calculated during the operation of system, and which region the user positioned in sector is determined according to the position information; E. according to the region at which the user positioned and the decided priority of which every channelization code is at the edge region of every sector, distribute the channelization codes to every user. The method of the invention can reduce the same-frequency interference of the edge region of sector due to the correlation of the spread spectrum codes, so as to improve the communication quality of which the users are at the edge regions of the sectors.

摘要翻译： 本发明公开了一种码分多址系统中的信道化码分配方法，包括：分配给每个扇区的扩频码和分布到每个相邻扇区的扩频码之间的相关系数根据蜂窝码 并且当网络被编程时分配给每个扇区的信道化码; 每个扇区划分为不同的区域，形成每个扇区的边缘区域; 每个信道化码在每个扇区的边缘区域的优先级根据分布到每个相邻扇区的扩频码之间的相关系数来确定; D.在系统操作期间实时计算用户的位置信息，并且根据位置信息确定用户位于扇区中的哪个区域; E.根据用户定位的区域和每个信道化码在每个扇区的边缘区域的确定的优先级，将信道化码分配给每个用户。 由于扩展频谱码的相关性，本发明的方法可以降低扇区的边缘区域的同频干扰，从而提高用户在扇区的边缘区域的通信质量。