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36 条记录 (耗时 0.02 秒)

    Receiver signal dynamic range compensation based on received signal strength indicator
    1.
    发明授权
    Receiver signal dynamic range compensation based on received signal strength indicator 有权
    基于接收信号强度指示器的接收机信号动态范围补偿

    公开(公告)号：US07200194B2

    公开(公告)日：2007-04-03

    申请号：US10269932

    申请日：2002-10-11

    申请人： Jingdong Lin ,  Shengquan Hu ,  Jin Ji ,  Ying Tian ,  Datong Chen

    发明人： Jingdong Lin ,  Shengquan Hu ,  Jin Ji ,  Ying Tian ,  Datong Chen

    IPC分类号： H04B1/10

    CPC分类号： H04L1/206 ,  H04B1/109 ,  H04B17/318 ,  H04L25/03318

    摘要： A method for processing a received signal at a mobile receiver of a wireless communications system is disclosed. The method comprises demodulating the received signal to obtain an analog base band signal and converting the analog base band signal into a digital base band signal. The signal strength of the digital base band signal is estimated and, using the estimation, the digital base band signal is scaled by a scaling factor. The digital base band signal is equalized into an equalized digital signal which is then rescaled by a resealing factor.

    摘要翻译： 公开了一种在无线通信系统的移动接收机处理接收信号的方法。 该方法包括解调接收信号以获得模拟基带信号，并将模拟基带信号转换成数字基带信号。 估计数字基带信号的信号强度，并且使用该估计，数字基带信号由比例因子缩放。 数字基带信号被均衡成均衡的数字信号，然后由重新密封因子重新缩放。

    Networking method of single frequency network in TD-SCDMA system
    2.
    发明授权
    Networking method of single frequency network in TD-SCDMA system 有权
    TD-SCDMA系统单频网络组网方法

    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。

    Method and system for modifying branch metric of Viterbi decoder for uncorrelated signals
    6.
    发明申请
    Method and system for modifying branch metric of Viterbi decoder for uncorrelated signals 审中-公开
    用于修改维特比解码器用于不相关信号的分支度量的方法和系统

    公开(公告)号：US20050141651A1

    公开(公告)日：2005-06-30

    申请号：US10867273

    申请日：2004-06-14

    申请人： Jiayi Zhuang ,  Shengguan Hu ,  Jingdong Lin ,  Datong Chen

    发明人： Jiayi Zhuang ,  Shengguan Hu ,  Jingdong Lin ,  Datong Chen

    IPC分类号： H03D1/00 ,  H04L1/00 ,  H04L25/02 ,  H04L25/06 ,  H04L27/06

    CPC分类号： H04L1/0071 ,  H04L1/0054 ,  H04L25/0202 ,  H04L25/067

    摘要： The present disclosure provides simple methods and systems for generating modified branch metrics for the Viterbi decoder so that the decoder can decode the uncorrelated incoming signals without the influence of either the signal power level or the noise variance. The proposed branch metrics noticeably improve the performance of the Viterbi algorithm in such cases. The present disclosure also provides methods and systems for reducing the length of the demodulated symbols for efficient computation. In an exemplary method, it is shown that the only requirement of the proposed modified branch metric, in addition to the traditional branch metric requirements, is the computation of the noise energy. In another exemplary system, an arrangement of circuit modules offers an implementation of one of the embodiments of the proposed method.

    摘要翻译： 本公开提供了用于生成用于维特比解码器的修改的分支度量的简单方法和系统，使得解码器可以在不受信号功率电平或噪声方差的影响的情况下解码不相关的输入信号。 在这种情况下，所提出的分支度量显着提高了维特比算法的性能。 本公开还提供了用于减少用于有效计算的解调符号的长度的方法和系统。 在示例性方法中，示出了除了传统的分支度量要求之外，所提出的修改的分支度量的唯一要求是噪声能量的计算。 在另一示例性系统中，电路模块的布置提供了所提出的方法的实施例之一的实现。

    GSM (Global System for Mobile communication) handset with carrier independent personal encryption
    9.
    发明申请
    GSM (Global System for Mobile communication) handset with carrier independent personal encryption 审中-公开
    GSM（全球移动通信系统）手机，具有载波独立的个人加密

    公开(公告)号：US20050232422A1

    公开(公告)日：2005-10-20

    申请号：US10827609

    申请日：2004-04-19

    申请人： Jingdong Lin ,  Yan Zhang ,  Datong Chen

    发明人： Jingdong Lin ,  Yan Zhang ,  Datong Chen

    IPC分类号： H04K1/00 ,  H04L9/12 ,  H04L9/18 ,  H04W12/02

    CPC分类号： H04L9/12 ,  H04K1/00 ,  H04L9/0662 ,  H04L2209/80 ,  H04W12/0013 ,  H04W12/00514

    摘要： The present disclosure introduces simple methods and systems for personal encryption of messages and data, using a GSM handset. The proposed methods and systems furnish another layer of communication security instead of or in addition to that of the carrier. Users can generate and customize their own encrypted communication, independent of the carrier. In one embodiment the existing handset hardware can be used to implement the personal encryption, without the need for additional hardware. The present disclosure also provides methods and systems for generating different encryption keys and synchronization methods. In one exemplary system the encryption key is kept in the memory of the handset, while in another exemplary system the key is downloaded from an SMS (Short Message Service) station. In one exemplary method the encryption key sequence is as long as the block data and is synchronized with each block data, while in another exemplary method the transmitted information is segmented and flagged for synchronization with the encryption key.

    摘要翻译： 本公开介绍了使用GSM手机对消息和数据的个人加密的简单方法和系统。 所提出的方法和系统提供另一层通信安全性，而不是运营商的通信安全性。 用户可以生成和自定义自己的加密通信，独立于运营商。 在一个实施例中，现有的手持机硬件可用于实现个人加密，而不需要额外的硬件。 本公开还提供用于生成不同加密密钥和同步方法的方法和系统。 在一个示例性系统中，加密密钥保存在手机的存储器中，而在另一示例性系统中，密钥从SMS（短消息服务）站下载。 在一个示例性方法中，加密密钥序列与块数据一样长并且与每个块数据同步，而在另一示例性方法中，传送的信息被分段和标记以与加密密钥同步。