公开(公告)号：US07962176B2

公开(公告)日：2011-06-14

申请号：US11885948

申请日：2005-12-29

申请人： Shihe Li ,  Tiezhu Xu ,  Hongbo Wang ,  Liwei Wang ,  Xiaozhou Chen ,  Xian Liu ,  Guoxin Zhao ,  Jianfeng Wu

发明人： Shihe Li ,  Tiezhu Xu ,  Hongbo Wang ,  Liwei Wang ,  Xiaozhou Chen ,  Xian Liu ,  Guoxin Zhao ,  Jianfeng Wu

IPC分类号： H04B1/38

CPC分类号： H04W88/08 ,  H04W88/085

摘要： The present invention discloses a base station system, including an indoor part and a remote RF subsystem (RRS). The indoor part includes a RIU, a CCU, a BBU, a GPSU and a local interface unit. The RRS includes a remote interface unit, a RF transceiver unit (TRU) and an antenna. The local interface unit and the remote interface unit are for signal intercommunicating between the indoor part of the base station and the RSS. The TRU is a RF transceiver module of the conventional RFU, for amplifying an analog RF signal from the remote interface unit and transmitting the signal to the antenna. By flexibly selecting between an optical cable and an If cable, the interface unit of the present invention provides a digital baseband remote manner and an IF remote manner. According to the structure of the base station of the present invention, the number of the base station sites and the network operating cost decreases; on the other side, since one base station may cover a cell by smart antenna with only one optical cable or IF cable, the difficulty in mounting is reduced.

摘要翻译： 本发明公开了一种基站系统，包括室内部分和远程RF子系统（RRS）。 室内部分包括RIU，CCU，BBU，GPSU和本地接口单元。 RRS包括远程接口单元，RF收发器单元（TRU）和天线。 本地接口单元和远程接口单元用于基站的室内部分与RSS之间的信号互通。 TRU是常规RFU的RF收发模块，用于放大来自远程接口单元的模拟RF信号并将信号发送到天线。 通过在光缆和If电缆之间灵活选择，本发明的接口单元提供数字基带远程方式和IF远程方式。 根据本发明的基站的结构，基站的数量和网络运营成本降低; 另一方面，由于一个基站可以通过仅使用一根光缆或IF电缆的智能天线来覆盖小区，所以安装的难度降低。

公开(公告)号：US20080317464A1

公开(公告)日：2008-12-25

申请号：US11885948

申请日：2005-12-29

申请人： Shihe Li ,  Tiezhu Xu ,  Hongbo Wang ,  Liwei Wang ,  Xiaozhou Chen ,  Xian Liu ,  Guoxin Zhao ,  Jianfeng Wu

发明人： Shihe Li ,  Tiezhu Xu ,  Hongbo Wang ,  Liwei Wang ,  Xiaozhou Chen ,  Xian Liu ,  Guoxin Zhao ,  Jianfeng Wu

IPC分类号： H04J14/00 ,  H04B1/38

CPC分类号： H04W88/08 ,  H04W88/085

摘要： The present invention discloses a base station system, including an indoor part and a remote RF subsystem (RRS). The indoor part includes a RIU, a CCU, a BBU, a GPSU and a local interface unit. The RRS includes a remote interface unit, a RF transceiver unit (TRU) and an antenna. The local interface unit and the remote interface unit are for signal intercommunicating between the indoor part of the base station and the RSS. The TRU is a RF transceiver module of the conventional RFU, for amplifying an analog RF signal from the remote interface unit and transmitting the signal to the antenna. By flexibly selecting between an optical cable and an If cable, the interface unit of the present invention provides a digital baseband remote manner and an IF remote manner. According to the structure of the base station of the present invention, the number of the base station sites and the network operating cost decreases; on the other side, since one base station may cover a cell by smart antenna with only one optical cable or IF cable, the difficulty in mounting is reduced.

摘要翻译： 本发明公开了一种基站系统，包括室内部分和远程RF子系统（RRS）。 室内部分包括RIU，CCU，BBU，GPSU和本地接口单元。 RRS包括远程接口单元，RF收发器单元（TRU）和天线。 本地接口单元和远程接口单元用于基站的室内部分与RSS之间的信号互通。 TRU是常规RFU的RF收发模块，用于放大来自远程接口单元的模拟RF信号并将信号发送到天线。 通过在光缆和If电缆之间灵活选择，本发明的接口单元提供数字基带远程方式和IF远程方式。 根据本发明的基站的结构，基站的数量和网络运营成本降低; 另一方面，由于一个基站可以通过仅使用一根光缆或IF电缆的智能天线来覆盖小区，所以安装的难度降低。

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：US20080194281A1

公开(公告)日：2008-08-14

申请号：US11915103

申请日：2006-05-15

申请人： Jianxun Sun ,  Tiezhu Xu

发明人： Jianxun Sun ,  Tiezhu Xu

IPC分类号： H04B7/00

CPC分类号： H04W52/346

摘要： A downlink power control method for base station, includes following steps: according to the received power control command, base station obtains the transmission power of each terminal occupying code channel; according to the transmission power of each terminal occupying code channel, determines the allowable minimum code channel power of each terminal; according to the determined minimum code channel power of each terminal, amends the transmission power of each terminal occupying code channel; according to the amended transmission power of each terminal occupying code channel, sends signals to the corresponding terminal respectively. Present invention could control the difference of signal power between different users, increase the stability of wireless link, and assure the quality of system communication.

摘要翻译： 一种用于基站的下行链路功率控制方法，包括以下步骤：根据接收到的功率控制命令，基站获取每个终端占用码信道的发射功率; 根据每个终端占用码信道的发射功率，确定每个终端的允许最小码信道功率; 根据确定的每个终端的最小码信道功率，修改每个终端占用码信道的发射功率; 根据每个终端占用代码信道的修改发送功率，分别向对应的终端发送信号。 本发明可以控制不同用户之间的信号功率差异，增加无线链路的稳定性，保证系统通信的质量。

公开(公告)号：US07894380B2

公开(公告)日：2011-02-22

申请号：US11915114

申请日：2006-05-15

申请人： Jianxun Sun ,  Yong Fan ,  Tiezhu Xu ,  Gang Niu

发明人： Jianxun Sun ,  Yong Fan ,  Tiezhu Xu ,  Gang Niu

IPC分类号： H04B7/216 ,  H04W4/00

CPC分类号： H04W52/24 ,  H04W52/343

摘要： A power control method for a terminal, including: obtaining, by the terminal, a quality parameter of a received signal, a receiving power of a code channel occupied by the terminal and a power of code channels in a cell having the same carrier frequency and the same time slot as those of the code channel occupied by the terminal respectively, according to a received signal quality; determining the minimum receiving power which is permitted by the code channel occupied by the terminal according to the power of the code channels in the cell having the same carrier frequency and the same time slot as those of the code channel occupied by the terminal; and generating a power control command according to a determined minimum receiving power, the receiving power of the code channel occupied by the terminal and the quality parameter of the received signal.

摘要翻译： 一种终端的功率控制方法，包括：由终端获得接收信号的质量参数，终端占用的码信道的接收功率和具有相同载波频率的小区中的码信道的功率，以及 根据接收到的信号质量分别与终端占用的码信道相同的时隙; 根据与所述终端占用的所述码信道相同的载波频率和相同时隙的小区中的码信道的功率，确定由所述终端占用的所述码信道所允许的所述码信道所允许的最小接收功率; 以及根据所确定的最小接收功率，所述终端所占用的码信道的接收功率和接收到的信号的质量参数来产生功率控制命令。

公开(公告)号：US20100014469A1

公开(公告)日：2010-01-21

申请号：US12439343

申请日：2007-08-29

申请人： Tiezhu Xu ,  Lubang Cheng ,  Song Wu

发明人： Tiezhu Xu ,  Lubang Cheng ,  Song Wu

IPC分类号： H04W72/08

CPC分类号： H04W72/1289

摘要： The present invention discloses a method for transmitting control and scheduling information. The method comprises an eNodeB transmitting control and scheduling information unable to be beamformed in a DwPTS. The control and scheduling information unable to be beamformed is switched from the downlink service slot to the DwPTS and then transmitted, so that the efficiency of time and frequency transmission is improved, the design complexity of the transmitter is reduced, the capacity of the radio access system may be improved and the design of the receiver may be simplified. The present invention also discloses a NodeB.

摘要翻译： 本发明公开了一种发送控制和调度信息的方法。 该方法包括在DwPTS中发送不能被波束成形的控制和调度信息的eNodeB。 不能被波束成形的控制和调度信息从下行链路业务时隙切换到DwPTS，然后发送，从而提高了时间和频率传输的效率，降低了发射机的设计复杂度，无线接入的容量 可以改善系统并且可以简化接收机的设计。 本发明还公开了一种NodeB。

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：US20080278374A1

公开(公告)日：2008-11-13

申请号：US11913775

申请日：2006-04-26

申请人： Tiezhu Xu ,  Feng Li ,  Shaoli Kang

发明人： Tiezhu Xu ,  Feng Li ,  Shaoli Kang

IPC分类号： H01Q25/00 ,  H04B1/06 ,  H01Q21/29

CPC分类号： H01Q3/242 ,  H01Q21/205

摘要： The present invention discloses a method for dynamically selecting antenna array architecture, deciding a basic antenna array, determining a number of required array elements, selecting determined number of array elements from all the array elements in the basic antenna array to form an antenna array architecture and receiving and detecting signals with the current antenna array architecture, the method further including: determining whether transmission time intervals and/or slot positions of received signals change, if so, re-selecting the determined number of array elements from all the array elements in the basic antenna array to form a new antenna array architecture and receiving and detecting signals with the new antenna array architecture, otherwise, continuing to determine. According to this method, not only the realization is simple but also that each array elements in the antenna array can receive arriving signals more reasonably so that the reliability of the antenna array to receive signals is improved.

摘要翻译： 本发明公开了一种用于动态选择天线阵列架构，确定基本天线阵列，确定所需阵列元件数量的方法，从基本天线阵列中的所有阵列元素中选择确定数量的阵列元件以形成天线阵列结构， 接收和检测具有当前天线阵列结构的信号，所述方法还包括：确定接收信号的传输时间间隔和/或时隙位置是否改变，如果是，则从所有阵列元素重新选择所确定数量的阵列元素 基本天线阵列形成新的天线阵列结构，并采用新天线阵列结构接收和检测信号，否则继续确定。 根据该方法，不仅实现简单，而且天线阵列中的每个阵列元件可以更合理地接收到达信号，从而提高天线阵列对接收信号的可靠性。

公开(公告)号：US06778588B2

公开(公告)日：2004-08-17

申请号：US10255334

申请日：2002-09-25

申请人： Feng Li ,  Tiezhu Xu ,  Yusong He ,  Xiaolong Ran

发明人： Feng Li ,  Tiezhu Xu ,  Yusong He ,  Xiaolong Ran

IPC分类号： H04B169

CPC分类号： H04W52/32 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/7083 ,  H04W52/50 ,  H04W56/00

摘要： The invention relates to a cell initial search method for user equipment (UE) in a CDMA digital cellular mobile communication system. The method includes: a UE after selecting a working frequency point, obtains downlink synchronization with the base station; and corrects carrier deviation between the UE and the base station. The downlink synchronization includes: deciding a range of downlink training sequence timeslot (DwPTS) based on training sequence power characteristic window value method; solving correlation of received data and training sequence in the range to obtain accurate receiving position of a UE. The correction of carrier deviation between a UE and the base station includes: estimating carrier deviation between a UE and the base station by software, recovering carrier frequency difference by using decision and feedback method to adjust hardware and carrier deviation correction method based on joint detection to correct carrier deviation.

摘要翻译： 本发明涉及CDMA数字蜂窝移动通信系统中的用户设备（UE）的小区初始搜索方法。 该方法包括：UE在选择工作频点后，获得与基站的下行同步; 并修正UE和基站之间的载波偏差。 下行同步包括：基于训练序列功率特征窗值法确定下行训练序列时隙（DwPTS）的范围; 解决接收到的数据与训练序列的相关性，以获得UE的准确接收位置。 UE和基站之间的载波偏差校正包括：通过软件估计UE与基站之间的载波偏差，通过使用决策和反馈方法来恢复载波频率差，以基于联合检测对硬件和载波偏差校正方法进行调整 正确的载波偏差。

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。