公开(公告)号：US08180354B2

公开(公告)日：2012-05-15

申请号：US11662724

申请日：2005-09-12

申请人： Feng Li ,  Shihe Li ,  Yusong He ,  Guiliang Yang

发明人： Feng Li ,  Shihe Li ,  Yusong He ,  Guiliang Yang

IPC分类号： H04W40/00

CPC分类号： H04W16/02 ,  H04L5/0016 ,  H04L5/0053 ,  H04W72/00 ,  H04W72/02 ,  H04W72/04 ,  H04W72/0453 ,  H04W72/082

摘要： A method for distributing wireless resource in multicarrier time division duplexing mobile communication system, such as TD-CDMA system, to overcome the shortage of 3GPP single carrier cell channel distribution technology of covering more lager area in composing cellular system, which contains using an area of covering same or almost same as a cell, selecting one carrier as main carrier and other carriers as auxiliary carrier, the frequency of main carrier is as different as possible, setting all public control channel in main carrier, the left resource of main carrier and resource of auxiliary carrier are used in uplink and downlink service channel, the arrangement of public channel in main carrier is same with that in single carrier cell.

摘要翻译： 一种用于在诸如TD-CDMA系统的多载波时分双工移动通信系统中分配无线资源的方法，以克服3GPP单载波小区信道分配技术在组合蜂窝系统中覆盖更多较大区域的不足，该方法包括使用 覆盖与小区相同或几乎相同，选择一个载波作为主载波和其他载波作为辅助载波，主载波的频率尽可能不同，将主载波的所有公共控制信道，主载波和资源的左侧资源 在上行链路和下行业务信道中使用辅助载波，主载波上公共信道的布置与单载波信元相同。

公开(公告)号：US07978634B2

公开(公告)日：2011-07-12

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 UE based on a TDD system. 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. 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. 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.

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UE。 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，并向RNC报告测量结果。 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UE分配可用资源 目标小区，并且将UE的业务载波数据分别发送到源小区和目标小区。 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。

公开(公告)号：US20090129360A1

公开(公告)日：2009-05-21

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： H04B7/216

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：US20080259892A1

公开(公告)日：2008-10-23

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： H04B7/216

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：US07295842B2

公开(公告)日：2007-11-13

申请号：US11149095

申请日：2005-06-09

申请人： Guiliang Yang ,  Chenguang Li ,  Feng Li ,  Jinling Hu ,  Darun Wang

发明人： Guiliang Yang ,  Chenguang Li ,  Feng Li ,  Jinling Hu ,  Darun Wang

IPC分类号： H04Q7/20

CPC分类号： H04W36/30 ,  H04W36/38 ,  H04W56/007 ,  H04W56/009

摘要： A handover method in a mobile communication system, wherein, while maintaining communication with a certain base station before handover, a mobile terminal measures signals of adjacent cells and confirms the candidate handover target base stations; the mobile terminal sends measurement report to network; inserting the procedure of pre-synchronization between the mobile terminal and the handover target base station, including: while sending measurement report to the network, the mobile terminal sends training sequence to the handover target base station; after receiving the training sequence, the handover target base station sends training sequence response message to the mobile terminal; the mobile terminal maintains open-loop or closed-loop synchronization with the handover target base station; the network sends handover command to the mobile terminal; the mobile terminal directly switches to the handover target base station according the handover command; wireless link between the mobile terminal and the handover-forward base station is released. By pre-acting wireless link synchronization establishment in handover before measuring stage, handover process time is reduced, system sources are saved, and handover reliability and quality are improved as well.

摘要翻译： 一种移动通信系统中的切换方法，其中，在切换前保持与某个基站的通信的同时，移动终端测量相邻小区的信号，并确认所述候选切换目的基站; 移动终端向网络发送测量报告; 插入移动终端与切换目标基站之间的预同步过程，包括：在向网络发送测量报告的同时，移动终端向切换目的地基站发送训练序列; 接收到训练序列后，切换目标基站向移动终端发送训练序列响应消息; 移动终端维护与切换目标基站的开环或闭环同步; 网络向移动终端发送切换命令; 移动终端根据切换命令直接切换到切换目的地基站; 移动终端与切换前转基站之间的无线链路被释放。 通过在测量阶段之前的切换中的预先行动的无线链路同步建立，减少了切换处理时间，节省了系统源，并提高了切换的可靠性和质量。

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：US20080310373A1

公开(公告)日：2008-12-18

申请号：US11914293

申请日：2006-04-28

申请人： Ke Wang ,  Guiliang Yang ,  Feng Li

发明人： Ke Wang ,  Guiliang Yang ,  Feng Li

IPC分类号： H04J13/00

CPC分类号： H04B1/7105 ,  H04B2201/70702 ,  H04J13/16 ,  H04L25/0226

摘要： A distribution method of multi basic midamble includes following step A. determining the number of channelizing code of a cell or sector (s101); B. configuring more than one of basic midamble to the cell or sector (s102); C. generating midamble which is no less than said channelizing code using said more than one of basic midamble (s103); D. configuring said midamble to make each channelizing code correspond to different midamble respectively (s104). The invention can configure multi basic midamble code in a cell or sector to make midamble correspond to all of adoptable spread spectrum code one-to-one, can improve the accuracy of joint detection remarkably and efficiently, and can change the service speed more securely. Furthermore, acquiring channelizing impulse response and corresponding spread spectrum code using the exact corresponding of midamble and spread spectrum code can acquire user original signal exactly. The invention also includes a joint detection method.

摘要翻译： 多基本中间码分配方法包括以下步骤A.确定小区或扇区的信道化码的数量（s101）; B.将多于一个基本midamble配置到小区或扇区（s102）; C.使用所述多个基本中间码生成不小于所述信道化码的中间码（s103）; D.配置所述中间码，使每个信道化码分别对应于不同的midamble（s104）。 本发明可以在单元或扇区中配置多个基本中间码，使得中间码对应于所有可采用的扩展码一一对应，可以显着高效地提高联合检测的精度，并可以更加安全地改变服务速度。 此外，使用中间码和扩频码的精确对应来获取信道化脉冲响应和对应的扩频码可以准确地获取用户原始信号。 本发明还包括联合检测方法。

公开(公告)号：US20080287137A1

公开(公告)日：2008-11-20

申请号：US11662724

申请日：2005-09-12

申请人： Feng Li ,  Shihe Li ,  Yusong He ,  Guiliang Yang

发明人： Feng Li ,  Shihe Li ,  Yusong He ,  Guiliang Yang

IPC分类号： H04Q7/20

CPC分类号： H04W16/02 ,  H04L5/0016 ,  H04L5/0053 ,  H04W72/00 ,  H04W72/02 ,  H04W72/04 ,  H04W72/0453 ,  H04W72/082

摘要： A method for distributing wireless resource in multicarrier time division duplexing mobile communication system, such as TD-CDMA system, to overcome the shortage of 3GPP single carrier cell channel distribution technology of covering more lager area in composing cellular system, which contains using an area of covering same or almost same as a cell, selecting one carrier as main carrier and other carriers as auxiliary carrier, the frequency of main carrier is as different as possible, setting all public control channel in main carrier, the left resource of main carrier and resource of auxiliary carrier are used in uplink and downlink service channel, the arrangement of public channel in main carrier is same with that in single carrier cell.

摘要翻译： 一种在多载波时分双工移动通信系统（如TD-CDMA系统）中分配无线资源的方法，以克服3GPP单载波信道分布技术在组合蜂窝系统中覆盖更多的较大区域的缺陷，其中包含使用一个区域 覆盖相同或几乎相同的小区，选择一个载波作为主载波，其他载波作为辅助载波，主载波的频率尽可能不同，将主载波的所有公共控制信道，主载波的左资源， 辅助载波资源用于上行和下行业务信道，主载波上公共信道的布置与单载波信元相同。

公开(公告)号：US20050272426A1

公开(公告)日：2005-12-08

申请号：US11149095

申请日：2005-06-09

申请人： Guiliang Yang ,  Chenguang Li ,  Feng Li ,  Jinling Hu ,  Darun Wang

发明人： Guiliang Yang ,  Chenguang Li ,  Feng Li ,  Jinling Hu ,  Darun Wang

IPC分类号： H04W36/08 ,  H04W36/30 ,  H04W36/38 ,  H04Q7/20

CPC分类号： H04W36/30 ,  H04W36/38 ,  H04W56/007 ,  H04W56/009

摘要： A handover method in a mobile communication system, wherein, while maintaining communication with a certain base station before handover, a mobile terminal measures signals of adjacent cells and confirms the candidate handover target base stations; the mobile terminal sends measurement report to network; inserting the procedure of pre-synchronization between the mobile terminal and the target base station, including: while sending measurement report to the network, the mobile terminal sends training sequence to the target base station; after receiving the training sequence, the target base station sends training sequence response message to the mobile terminal; the mobile terminal maintains open-loop or closed-loop synchronization with the target base station; the network sends handover command to the mobile terminal; the mobile terminal directly switches to the target base station according the handover command; wireless link between the mobile terminal and the handover-forward base station is released. By pre-acting wireless link synchronization establishment in handover before measuring stage, handover process time is reduced, system sources are saved, and handover reliability and quality are improved as well.

摘要翻译： 一种移动通信系统中的切换方法，其中，在切换前保持与某个基站的通信的同时，移动终端测量相邻小区的信号，并确认所述候选切换目的基站; 移动终端向网络发送测量报告; 插入移动终端与目标基站之间的预同步过程，包括：向网络发送测量报告，移动终端向目标基站发送训练序列; 接收到训练序列后，目标基站向移动终端发送训练序列响应消息; 移动终端保持与目标基站的开环或闭环同步; 网络向移动终端发送切换命令; 移动终端根据切换命令直接切换到目标基站; 移动终端与切换前转基站之间的无线链路被释放。 通过在测量阶段之前的切换中的预先行动的无线链路同步建立，减少了切换处理时间，节省了系统源，并提高了切换的可靠性和质量。

公开(公告)号：US07319888B2

公开(公告)日：2008-01-15

申请号：US10508669

申请日：2003-03-07

申请人： Shihe Li ,  Guiliang Yang

发明人： Shihe Li ,  Guiliang Yang

IPC分类号： H04M1/00

CPC分类号： H04W16/28

摘要： The invention discloses a method for transmitting high-speed downlink package data in a mobile communication system with a smart antenna, which not only can take full advantage of radio beamforming of smart antenna but also can transmit downlink package data high efficiency. In this method, at the beginning of downlink package data transmission, no matter whether a subscriber terminal is at any state, a call for all ready subscriber terminal is made through a paging channel to obtain an initial DOA (direction of arrival) of every subscriber terminal, and then with this initial DOA the smart antenna transmits downlink package data to a subscriber terminal with an initial beamforming; having received one package, the subscriber terminal returns an acknowledgement message, if the downlink package is correctly received, or retransmission is required, if the received downlink package has error codes, so the system knows current position of the subscriber terminal and can use an updated beamforming to trace the subscriber terminal moving; based on received package quality, the system adaptively adjusts the length of a downlink package, and based on the moving speed of the subscriber terminal, the system adaptively adjusts the length of the downlink package too.

摘要翻译： 本发明公开了一种在具有智能天线的移动通信系统中传输高速下行链路封装数据的方法，该方法不仅可以充分利用智能天线的无线波束成形，而且可以高效率地传输下行封装数据。 在该方法中，在下行包数据传输开始时，无论用户终端是否处于任何状态，通过寻呼信道进行对所有就绪用户终端的呼叫，以获得每个用户的初始DOA（到达方向） 终端，然后利用该初始DOA，智能天线将初始波束成形的下行链路封装数据发送给用户终端; 如果已经接收到一个包，则如果接收到的下行链路包具有错误代码，则如果正确地接收到下行链路包或需要重传，则用户终端返回确认消息，所以系统知道用户终端的当前位置并且可以使用更新的 波束成形跟踪用户终端移动; 基于接收到的封装质量，系统自适应地调整下行链路封装的长度，并且基于用户终端的移动速度，系统也自适应地调整下行链路封装的长度。