公开(公告)号：US08072960B2

公开(公告)日：2011-12-06

申请号：US12022984

申请日：2008-01-30

申请人： Yanshan Shi ,  Ling Lv ,  Jingdong Lin ,  Datong Chen

发明人： Yanshan Shi ,  Ling Lv ,  Jingdong Lin ,  Datong Chen

IPC分类号： H04J3/00

CPC分类号： H04W72/005 ,  H04W48/10

摘要： A networking method of single frequency network in a TD-SCDMA system includes the steps of: (1) deciding a networking configuration scheme by a universal mobile telecommunications system terrestrial radio access network (UTRAN), (2) based on the decided networking configuration scheme, configuring an intra-frequency cell info list information element and an inter-frequency cell info list information element in system information and measurement control messages by the UTRAN, (3) transmitting signals over a servicing area by the UTRAN, and (4) receiving the system information and measurement control messages by a user equipment (UE) from the UTRAN, acquiring working mode configuration information of each frequency and each timeslot of a serving cell and neighboring cells, and judging whether there are duplicated cell information elements in the intra-frequency cell info list information element or the inter-frequency cell info list information element.

摘要翻译： TD-SCDMA系统中单频网络的组网方法包括以下步骤：（1）通过通用移动电信系统陆地无线接入网（UTRAN）决定网络配置方案，（2）基于所确定的网络配置方案 ，在UTRAN的系统信息和测量控制消息中配置频率小区信息列表信息单元和频率间小区信息列表信息单元，（3）由UTRAN通过服务区域发送信号，以及（4）接收 来自UTRAN的用户设备（UE）的系统信息和测量控制消息，获取服务小区和相邻小区的每个频率和每个时隙的工作模式配置信息，并且判断是否存在复制小区信息元素， 频率单元信息列表信息单元或频率间单元信息列表信息单元。

公开(公告)号：US07110478B2

公开(公告)日：2006-09-19

申请号：US10119409

申请日：2002-04-09

申请人： Jingdong Lin ,  Justine Zhuang ,  Tong Zhao

发明人： Jingdong Lin ,  Justine Zhuang ,  Tong Zhao

IPC分类号： H03D1/00 ,  H04L27/06

CPC分类号： H04Q1/45

摘要： A method of detecting a tone signal from complex input samples r(n) in a wireless communication system is disclosed. The method comprises calculating the phase difference of the samples r(n) as a signal x(n). Next, the signal x(n) is filtered with a notch filter to generate a notched output y(n). The power of both the signal x(n) and the notched output y(n) is estimated. The ratio of the powers of the notched output y(n) and signal x(n) is calculated. The tone signal is detected if the ratio is below a predetermined threshold for a predetermined duration of time.

公开(公告)号：US20050135512A1

公开(公告)日：2005-06-23

申请号：US10744049

申请日：2003-12-22

申请人： Jiayi Zhuang ,  Jingdong Lin ,  Yueheng Sun

发明人： Jiayi Zhuang ,  Jingdong Lin ,  Yueheng Sun

IPC分类号： H04L5/06 ,  H04L5/22 ,  H04L5/26 ,  H04L27/00 ,  H04L27/06 ,  H04L27/22

CPC分类号： H04L5/06 ,  H04L5/22 ,  H04L5/26 ,  H04L2027/0065

摘要： A method of frequency tracking based on recovered data, for use in an automatic frequency control subsystem at the receiver of a mobile station, is disclosed. The frequency tracking mechanism derives frequency error information from the recovered data to determine the adjustment needed at the mobile station's local voltage controlled oscillator in order to track the frequency of the base station.

摘要翻译： 公开了一种基于恢复数据的频率跟踪方法，用于移动台接收机处的自动频率控制子系统。 频率跟踪机制从恢复的数据导出频率误差信息，以确定移动台的局部压控振荡器所需的调整，以便跟踪基站的频率。

公开(公告)号：US06590976B1

公开(公告)日：2003-07-08

申请号：US09574935

申请日：2000-05-19

申请人： Jingdong Lin

发明人： Jingdong Lin

IPC分类号： H04M1106

CPC分类号： H04B3/23 ,  H04M11/062

摘要： A two-step training method for the estimation filter in the echo cancellation (EC) path of the analog front-end (AFE) circuit for a modem, such as an asymmetric digital subscriber line (ADSL) modem. During the first step, the coefficients of a filter that is preferably equivalent to the combination of the EC path and the receive (RX) path in the AFE circuit are determined with the EC estimation filter held fixed and the transmit (TX) path in the AFE circuit disabled. During the second step, the TX path is enabled and the coefficients of the EC estimation filter are determined using the path equivalent filter generated during the first step. The two-step training method takes into account variations in the operating characteristics of components in the various processing paths in the AFE circuit to converge on satisfactory coefficients for the EC estimation filter within an acceptable number of training symbols.

摘要翻译： 用于诸如非对称数字用户线（ADSL）调制解调器的调制解调器的模拟前端（AFE）电路的回波消除（EC）路径中的估计滤波器的两步训练方法。 在第一步骤中，优选地等效于AFE电路中的EC路径和接收（RX）路径的组合的滤波器的系数由保持固定的EC估计滤波器并且保持固定的发送（TX）路径确定 AFE电路禁用。 在第二步骤期间，启用TX路径，并且使用在第一步骤期间生成的路径等效滤波器来确定EC估计滤波器的系数。 两步训练方法考虑了在AFE电路中的各种处理路径中的组件的操作特性的变化，以收敛于可接受数量的训练符号内的EC估计滤波器的令人满意的系数。

公开(公告)号：US08576871B2

公开(公告)日：2013-11-05

申请号：US11971180

申请日：2008-01-08

申请人： Hongchao Deng ,  Jingdong Lin

发明人： Hongchao Deng ,  Jingdong Lin

IPC分类号： H04B7/212 ,  H04L12/16 ,  H04J3/16 ,  H04J4/00 ,  H04W68/00

CPC分类号： H04W72/005 ,  H04W74/00

摘要： A collision avoidance method for subscribers to fight for a right to speak of a multi-party conversation in a digital intercommunication system includes: sending a frame of instructions from the transmitting subscriber to the receiving subscribers for declaring a beginning of a fight for phase; in a subset of frame moments during the fight-for phase, sending maintenance information by the transmitting subscriber to the receiving subscribers; in another subset of the frame moments during the fight-for phase, broadcasting a request for the right to speak by the receiving subscribers intending to obtain the right to speak in turn, the fight-for phase not closing until at least one of the receiving subscribers sends out a request message; hearing the request message, ceasing fighting for the right to speak by the other receiving subscribers; and the receiving subscriber obtaining the right to speak as a new transmitting subscriber and beginning to speak.

摘要翻译： 用于在数字互通系统中争取说话多方通话的权利的冲突避免方法包括：从发送用户向接收用户发送指令帧，以宣告开始争夺阶段; 在战斗阶段的帧时刻的子集中，由发送用户向接收用户发送维护信息; 在争取阶段的框架时刻的另一个子集中，广播接收订户有权获得发言权的请求权，反对阶段不会关闭，直到至少一个接收 用户发出请求消息; 听取请求信息，停止争取其他接收用户发言权; 并且接收用户获得作为新的发送用户发言的权利并开始说话。

公开(公告)号：US08139529B2

公开(公告)日：2012-03-20

申请号：US12022797

申请日：2008-01-30

申请人： Jian Cheng ,  Jingdong Lin

发明人： Jian Cheng ,  Jingdong Lin

IPC分类号： H04W4/00

CPC分类号： H04L25/0212 ,  H04L25/022 ,  H04L25/024 ,  H04L25/03159 ,  H04L2025/03522

摘要： Networking methods of a Single Frequency Network (SFN) in communication systems are disclosed.

摘要翻译： 披露了通信系统中单频网络（SFN）的组网方法。

公开(公告)号：US20080229367A1

公开(公告)日：2008-09-18

申请号：US12021275

申请日：2008-01-28

申请人： Jian Cheng ,  Datong Chen ,  Kang Yi ,  Zhiqun Chen ,  Jingdong Lin

发明人： Jian Cheng ,  Datong Chen ,  Kang Yi ,  Zhiqun Chen ,  Jingdong Lin

IPC分类号： H04N7/16

CPC分类号： H04B7/022

摘要： A mobile TV broadcast system based on TD-SCDMA network is disclosed herein.

摘要翻译： 本文公开了一种基于TD-SCDMA网络的移动电视广播系统。

公开(公告)号：US07245878B2

公开(公告)日：2007-07-17

申请号：US10696397

申请日：2003-10-28

申请人： Jingdong Lin ,  Yan Zhang ,  Jiayi Zhuang ,  Jian Cheng

发明人： Jingdong Lin ,  Yan Zhang ,  Jiayi Zhuang ,  Jian Cheng

IPC分类号： H04B1/00 ,  H04B15/00

CPC分类号： H04B17/336

摘要： A method of detecting a silent frame at a mobile station in a GSM transmission is disclosed. The method comprises first receiving a data burst intended for the mobile station. Then, a signal-to-interference-and-noise ratio (SINR) is determined for the data burst. If the SINR is below a predetermined threshold, then the data burst is determined as from a silent frame.

摘要翻译： 公开了一种在GSM传输中检测移动台上的无声帧的方法。 该方法包括首先接收针对移动台的数据突发。 然后，确定数据脉冲串的信号与干扰噪声比（SINR）。 如果SINR低于预定阈值，则从无声帧确定数据脉冲串。

公开(公告)号：US20060233153A1

公开(公告)日：2006-10-19

申请号：US11326043

申请日：2006-01-05

申请人： Jian Cheng ,  Jingdong Lin

发明人： Jian Cheng ,  Jingdong Lin

IPC分类号： H04J3/06

CPC分类号： H04L27/2271 ,  H04L2027/0028 ,  H04L2027/0038 ,  H04L2027/0061 ,  H04L2027/0065 ,  H04L2027/0075

摘要： A technique is provided for automatic frequency offset correction in a wireless communication system. After demodulating and decoding a received signal in a receiver, channel estimation is also performed. The technique further includes re-encoding and re-modulating the decoded and demodulated signal with a coding and modulation scheme different from the received signal. The signal is reconstructed signal on the basis of the re-encoded and re-modulated signal and estimated channel characteristics. A frequency error is estimated based on the reconstructed signal and the original received signal. A threshold for a comparator is determined on the basis of the estimated offset amount determined by the comparison threshold and the estimated frequency offset.

摘要翻译： 提供了一种用于无线通信系统中的自动频偏校正的技术。 在对接收机中的接收信号进行解调和解码之后，还执行信道估计。 该技术还包括用与接收信号不同的编码和调制方案对解码和解调信号进行重新编码和重新调制。 信号是基于重新编码和重新调制的信号和估计的信道特性的重构信号。 基于重构信号和原始接收信号估计频率误差。 基于由比较阈值和估计频率偏移确定的估计偏移量来确定比较器的阈值。

公开(公告)号：US5761250A

公开(公告)日：1998-06-02

申请号：US515403

申请日：1995-08-15

申请人： Jingdong Lin

发明人： Jingdong Lin

IPC分类号： H04B17/00 ,  H04L27/22 ,  H04Q7/22 ,  H04L27/06

CPC分类号： H04L27/22

摘要： A method and apparatus for iterative carrier frequency estimation of a base station by a mobile station in a wireless communication system is disclosed. Upon detecting a frequency correction burst ("FCB") signal from the wireless transmission of the base station, the mobile station first buffers the FCB signal and then filters the buffered signal with a bandpass filter to generate a first set of filtered data. After filtering, the first filtered data is again filtered with an auto-regressive filter to generate a corresponding set of second filtered data. With the second filtered data, iterative pole estimation of the AR filter and filtering by the AR filter is made for a predetermined set of iterations to generate a converged pole estimate, which can then be used to derive the carrier frequency of the base station. Also, the mobile station may be further adapted to receive and buffer more than one FCB signals to allow averaging of the derived carrier frequencies based on different pole estimates such that a reliable and accurate carrier frequency is obtained.

摘要翻译： 公开了一种由无线通信系统中的移动台对基站进行迭代载波频率估计的方法和装置。 当检测到来自基站的无线传输的频率校正脉冲串（“FCB”）信号时，移动站首先缓冲FCB信号，然后用带通滤波器对缓冲的信号进行滤波，以产生第一组滤波数据。 滤波后，再次用自回归滤波器对第一个滤波后的数据进行滤波，以产生一组相应的第二个滤波数据。 利用第二滤波数据，AR滤波器的迭代极点估计和AR滤波器的滤波是针对预定的一组迭代进行的，以产生收敛极点估计值，该收敛极点估计值可用于导出基站的载波频率。 此外，移动台还可以适于接收和缓冲多于一个的FCB信号，以允许基于不同的极点估计平均所导出的载波频率，从而获得可靠且准确的载波频率。