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：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：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：US07899014B2

公开(公告)日：2011-03-01

申请号：US11915049

申请日：2006-04-26

申请人： Feng Li ,  Guiliang Yang ,  Yuanxin Qiao ,  Tiezhu Xu

发明人： Feng Li ,  Guiliang Yang ,  Yuanxin Qiao ,  Tiezhu Xu

IPC分类号： H04W4/00 ,  H04B7/216 ,  H04B1/00

CPC分类号： H04B1/7105 ,  H04L5/0003 ,  H04L25/0212 ,  H04L25/03006

摘要： The present invention discloses a method for determining user channel impulse response in the TD-SCDMA system, including: setting one or more than one synchronous ID code and establishing corresponding relations between channel estimation parameters of each user and the synchronous ID code and a sub-frame number of a sub-frame transmitting the synchronous ID code; transmitting, by each user, a corresponding synchronous ID code in a sub-frame identified by a sub-frame number corresponding to channel estimation parameters according to the relations established in step A, wherein timing advance of transmitting the synchronous ID code is the same with that of transmitting uplink service data of the user; at Node B, continuing to detect whether there is the synchronous ID code in received signals, if there is one or more than one synchronous ID code, determining the channel estimation parameters of the user transmitting the synchronous ID code according to the detected synchronous ID code, sub-frame number of the current sub-frame and the corresponding relations established in step A; and at Node B, computing the channel impulse response of the user according to the determined channel estimation parameters and arriving time of the detected synchronous ID code.

摘要翻译： 本发明公开了一种在TD-SCDMA系统中确定用户信道脉冲响应的方法，包括：设置一个或多个同步ID码，并建立每个用户的信道估计参数与同步ID码之间的对应关系， 发送同步ID码的子帧的帧号; 根据步骤A中建立的关系，由每个用户发送由对应于信道估计参数的子帧号标识的子帧中的对应同步ID码，其中发送同步ID码的定时提前与 发送用户的上行业务数据; 在节点B处，如果存在一个或多个同步ID码，则继续检测接收到的信号中是否存在同步ID码，根据检测到的同步ID码确定用户发送同步ID码的信道估计参数 ，当前子帧的子帧号和步骤A中建立的对应关系; 并且在节点B处，根据确定的信道估计参数和检测到的同步ID码的到达时间来计算用户的信道脉冲响应。

公开(公告)号：US20090122730A1

公开(公告)日：2009-05-14

申请号：US11916502

申请日：2006-04-20

申请人： Guiliang Yang ,  Yuanxin Qiao ,  Feng Li ,  Na Wu

发明人： Guiliang Yang ,  Yuanxin Qiao ,  Feng Li ,  Na Wu

IPC分类号： H04J3/00

CPC分类号： H04W36/30 ,  Y02D70/00

摘要： The present invention discloses a cell handoff method and a user equipment based on a TDD system. The method includes: step A. a UE measures received pilot channels of a source cell and a neighboring cell according to a measurement control message and reports measurement result to a RNC; step B. the RNC, determines whether a target cell to be subject to a cell handoff process has available resources at a time slot different from that of the source cell and if yes, transmits a cell handoff command to the UE, allocates available resources for the UE in the target cell and transmits traffic carrier data of the UE to the source cell and the target cell respectively; and step C. after receiving the cell handoff command, the UE communicates with the source cell and the target cell at a same frame and at same time according to the allocated available resources. According to the handoff method of the present invention, UE can more reliably receive the handoff control command transmitted by the RNC and during the handoff process, the transmission power and interference are reduced so that the reliable handoff of a UE is guaranteed and the system performance is improved.

摘要翻译： 本发明公开了一种基于TDD系统的小区切换方法和用户设备。 该方法包括：步骤A，UE根据测量控制消息测量源小区和相邻小区的接收导频信道，并将测量结果报告给RNC; 步骤B. RNC确定要进行小区切换过程的目标小区是否具有与源小区不同的时隙的可用资源，如果是，则向UE发送小区切换命令，为 目标小区中的UE，并且将UE的业务载波数据分别发送到源小区和目标小区; 和步骤C.在接收到小区切换命令之后，UE根据所分配的可用资源，在相同的帧并且同时与源小区和目的小区进行通信。 根据本发明的切换方法，UE可以更可靠地接收由RNC发送的切换控制命令，并且在切换过程期间，降低发射功率和干扰，从而保证UE的可靠切换，并且系统性能 改进了

公开(公告)号：US20050266849A1

公开(公告)日：2005-12-01

申请号：US11129209

申请日：2005-05-12

申请人： Feng Li ,  Shihe Li ,  Guiliang Yang

发明人： Feng Li ,  Shihe Li ,  Guiliang Yang

IPC分类号： H04W8/00 ,  H04W84/18 ,  H04Q7/20

CPC分类号： H04W8/005 ,  H04W84/18

摘要： The present invention relates to a method for constructing a self-organizing mobile communication system which is mobile, self-organizing and can make common commercial terminals communicates with outside, comprising: searching for the pilot signals of adjacent area base stations in a manner similar to user terminals by a base station without direct connection to a base station controller, setting the local area covered by the base station as the next lower-level area of the adjacent area through responding to the pilot signals by the base station so as to form a subordinate relationship to the adjacent area; conducting relay communications by base stations at each above level, wherein the relay communication starting from a second or below-second-level area base station by a commercial user terminal covered by the second or below-second-level area base station, eventually establishing communications between the commercial user terminal and the base station controller in a public mobile communication system via a first-level area base station directly connected with the base station controller, and constructing a self-organizing mobile communication system by the base stations at each level. The method is especially applicable for constructing emergency communication systems.

摘要翻译： 本发明涉及一种构建自组织移动通信系统的方法，该自组织移动通信系统是移动的，自组织的并且可以使公共商用终端与外部通信，包括：以类似于...的方式搜索相邻区域基站的导频信号 用户终端，而不直接连接到基站控制器，通过响应基站的导频信号将基站所覆盖的本地区域设置为相邻区域的下一个较低级别的区域，以便形成 与邻区的下属关系; 由上述级别的基站进行中继通信，其中，所述中继通信由第二级或低于二级的区域基站覆盖的商用用户终端从第二级或低于二级的区域基站开始，最终建立通信 在通过与基站控制器直接连接的一级区域基站的公共移动通信系统中的商业用户终端与基站控制器之间，由各级的基站构建自组织移动通信系统。 该方法特别适用于构建应急通信系统。

公开(公告)号：US08331247B2

公开(公告)日：2012-12-11

申请号：US11914358

申请日：2006-05-10

申请人： Feng Li ,  Guiliang Yang ,  Shaoli Kang

发明人： Feng Li ,  Guiliang Yang ,  Shaoli Kang

IPC分类号： G08C15/00

CPC分类号： H04J13/16 ,  H04J13/0044 ,  H04W8/005 ,  H04W24/00 ,  H04W72/0466

摘要： The present invention discloses a method for code channel allocation and related multiuser detection in a wireless communication system. The method for code channel allocation includes: establishing a relation between at least one channel estimation window and a channelization code, wherein the at least one channel estimation window corresponding to the channelization code includes the channel estimation windows corresponding to all the spread spectrum code branches of a node in which the channelization code exists; and performing code channel allocation according to the relation established. In the method for code channel allocation of the invention, there exists a one-to-many relation between the channelization code/channelization code number established and the at least one channel estimation window. Therefore, during the multiuser detection, the channelization code/channelization code number determined via the at least one channel estimation window activated is unique. Thereby, the efficiency of the multiuser detection process may be increased.

摘要翻译： 本发明公开了一种用于无线通信系统中的码信道分配和相关多用户检测的方法。 用于码信道分配的方法包括：建立至少一个信道估计窗口和信道化码之间的关系，其中对应于信道化码的至少一个信道估计窗口包括对应于所有扩频码分支的信道估计窗口 存在信道化代码的节点; 并根据建立的关系执行代码信道分配。 在本发明的编码信道分配方法中，在所建立的信道化码/信道化码数与至少一个信道估计窗口之间存在一对多的关系。 因此，在多用户检测期间，通过激活的至少一个信道估计窗口确定的信道化码/信道化码号是唯一的。 由此，可以提高多用户检测处理的效率。

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：US20060003760A1

公开(公告)日：2006-01-05

申请号：US11192678

申请日：2005-07-28

申请人： Shihe Li ,  Feng Li ,  Guiliang Yang

发明人： Shihe Li ,  Feng Li ,  Guiliang Yang

IPC分类号： H04Q7/20

CPC分类号： H04W16/26 ,  H04B7/155 ,  H04B7/2606

摘要： The present invention relates to relay communication equipment, relay communication methods thereof and a mobile communication system adopting the relay communication equipment. The relay communication equipment generally comprises a general control unit comprised of a digital signal processor; a terminal access function unit comprised of a radio frequency transceiver and physical layer signal processing equipment as well as independent antenna and feeder thereof; a base station function unit comprised of a radio frequency transceiver and physical layer signal processing equipment as well as independent antenna and feeder thereof, for implementing radio signal transmission and receiving between the relay communication equipment and a certain base station in a mobile communication network as well as that between the relay communication equipment and mobile terminals. The mobile communication system adopting relay communication equipment comprises at least one the relay communication equipment. The relay communication equipment can be located in the area that is not covered by mobile communication network, so that common user terminals can acquire mobile communication service in this area. The relay communication equipment provides information communication among terminals inside the local subnet and communication between terminal inside the subnet and that outside the subnet through the detected base station.

摘要翻译： 本发明涉及中继通信设备及其中继通信方法以及采用中继通信设备的移动通信系统。 中继通信设备通常包括由数字信号处理器构成的通用控制单元; 终端接入功能单元，包括射频收发器和物理层信号处理设备，以及独立天线和馈线; 基站功能单元，包括射频收发器和物理层信号处理设备以及独立的天线和馈线，用于在中继通信设备和移动通信网络中的某个基站之间实现无线电信号传输和接收 如中继通信设备和移动终端之间的那样。 采用中继通信设备的移动通信系统包括至少一个中继通信设备。 中继通信设备可以位于移动通信网络未覆盖的区域内，使得普通用户终端可以在该区域获取移动通信业务。 中继通信设备通过检测到的基站在本地子网内的终端之间提供信息通信，子网内的终端与子网之间的通信。