Apparatus and method for acquiring frame synchronization and frequency synchronization simultaneously in communication system
    61.
    发明授权
    Apparatus and method for acquiring frame synchronization and frequency synchronization simultaneously in communication system 失效
    在通信系统中同时获取帧同步和频率同步的装置和方法

    公开(公告)号:US08259646B2

    公开(公告)日:2012-09-04

    申请号:US12517432

    申请日:2007-12-03

    IPC分类号: H04J3/06

    摘要: An apparatus and method for acquiring reliable frame synchronization performance and frequency synchronization simultaneously in a communication system includes a differential correlator outputting a result value obtained by performing a differential operation based on an input signal having symbol timing synchronization and a value pre-defined with a sender sending the input signal, a frequency error calculator compensating for a frequency error based on the result value of the differential correlator and a frequency compensation control signal, and a frame synchronization determiner outputting the frequency compensation control signal if the result value of the differential correlator is greater than a threshold set having at least one value. By introducing a correlation scheme, i.e. Differential Generalized Post Detection Integration (DGPDI), in which differential information corresponding to a half of a symbol duration length is used within a duration from a frame start symbol to a UW symbol duration in a TDM/TDMA transmission structure in which a low SNR and a high frequency error must be considered, a more reliable frame synchronization estimation value can be acquired in comparison to a conventional frame synchronization scheme in which differential information between single neighbor symbols is used.

    摘要翻译: 一种用于在通信系统中同时获取可靠的帧同步性能和频率同步的装置和方法包括差分相关器,其输出通过基于具有符号定时同步的输入信号执行差分运算而得到的结果值,以及预定义的发送器 发送输入信号,基于差分相关器的结果值和频率补偿控制信号来补偿频率误差的频率误差计算器,以及如果差分相关器的结果值为 大于具有至少一个值的阈值集合。 通过引入相关方案,即差分广义后检测积分(DGPDI),其中对应于符号持续时间长度的一半的差分信息在TDM / TDMA传输中的帧开始符号到UW符号持续时间的持续时间内被使用 必须考虑低SNR和高频误差的结构,与使用单个相邻符号之间的差分信息的常规帧同步方案相比,可以获得更可靠的帧同步估计值。

    Apparatus and method for traffic performance improvement and traffic security in interactive satellite communication system
    64.
    发明授权
    Apparatus and method for traffic performance improvement and traffic security in interactive satellite communication system 失效
    交互式卫星通信系统中交通绩效改善和交通安全的装置与方法

    公开(公告)号:US07940713B2

    公开(公告)日:2011-05-10

    申请号:US11635295

    申请日:2006-12-07

    IPC分类号: H04L12/56

    摘要: There are provided an apparatus and method for traffic performance improvement and traffic security in an interactive satellite communication system. The method for traffic performance improvement of an interactive satellite communication system includes the steps of: a) storing an Internet protocol (IP) packet that is received from a user terminal connected to a satellite mobile terminal of the interactive satellite communication system and is to be transmitted to a central station through a satellite; b) transmitting acknowledgement for the stored IP packet to the user terminal by acting for the central station, before the stored IP packet is transmitted to the central station; and c) transmitting the stored IP packet through the satellite to the central station, and retransmitting an unacknowledged IP packet according to a retransmission request of the central station.

    摘要翻译: 提供了一种用于交互式卫星通信系统中的交通性能改善和交通安全的装置和方法。 交互式卫星通信系统的交通性能改善方法包括以下步骤:a)存储从连接到交互式卫星通信系统的卫星移动终端的用户终端接收到的因特网协议(IP)分组, 通过卫星传送到中心站; b)在所存储的IP分组被发送到中心站之前,通过对中心站的动作来向所述用户终端发送所存储的IP分组的确认; 以及c)通过所述卫星将所存储的IP分组发送到所述中心站,并且根据所述中心站的重发请求重传未确认的IP分组。

    APPARATUS AND METHOD FOR CONTROLLING HYBRID MOTOR
    65.
    发明申请
    APPARATUS AND METHOD FOR CONTROLLING HYBRID MOTOR 审中-公开
    控制混合电机的装置和方法

    公开(公告)号:US20100257131A1

    公开(公告)日:2010-10-07

    申请号:US12298188

    申请日:2007-12-28

    IPC分类号: G06N5/02

    CPC分类号: G06Q30/02 G06Q30/0631

    摘要: The present invention relates to a content recommendation method in which pieces of information collected over an IP Multimedia Subsystem (IMS) network are analyzed through data mining, a semantic pattern is identified from the information and described based on ontology, the characteristics of content to be offered are recorded in ontology and language morphological pattern, and a recommendation filter in terms of various viewpoints and methods is operated in an integrated recommendation framework, thus enabling content recommendation suitable for various contexts to be performed.The method includes the steps of receiving user information, creating personal preference information based on the user information, deciding a recommendation strategy based on the preference information for content, combining recommendation functions using the recommendation strategy and the content information, personalizing recommendation results with respect to the combination, and providing the personalized content information.Furthermore, the method for recommending content with context awareness according to the present invention has an advantage in that it can offer more efficient and accurate content to mobile terminal users as a mobile communication network is expanded into an IMS basis and opened and therefore the types and number of content accessible by mobile terminals as well as mobile phones increase abruptly. Furthermore, the method for recommending content with context awareness according to the present invention is advantageous in that it can analogize the life pattern of a mobile terminal user, etc. based on the user's current context information and offers content matching the inferred life pattern at the right time and place.

    摘要翻译: 本发明涉及一种内容推荐方法,其中通过数据挖掘分析通过IP多媒体子系统(IMS)网络收集的信息,从信息中识别语义模式并基于本体描述内容的特征 提供的记录在本体和语言形态模式中,并且在综合推荐框架中操作各种观点和方法的推荐过滤器,从而能够执行适合于各种上下文的内容推荐。 该方法包括以下步骤:接收用户信息,基于用户信息创建个人偏好信息,基于内容的偏好信息确定推荐策略,使用推荐策略组合推荐功能和内容信息,将关于 组合,并提供个性化内容信息。 此外,根据本发明的用于推荐具有上下文感知的内容的方法具有的优点在于,当移动通信网络扩展到IMS基础并且打开时,它可以向移动终端用户提供更有效和准确的内容,因此, 移动终端和移动电话可访问的内容数量突然增加。 此外,根据本发明的用于推荐具有上下文意识的内容的方法的优点在于,其可以基于用户的当前上下文信息来类比移动终端用户的生活方式等,并且提供与所推断的生活方式匹配的内容 正确的时间和地点。

    WATCH PHONE AND METHOD FOR HANDLING AN INCOMING CALL IN THE WATCH PHONE
    67.
    发明申请
    WATCH PHONE AND METHOD FOR HANDLING AN INCOMING CALL IN THE WATCH PHONE 审中-公开
    手表电话和方法来处理手表中的电话

    公开(公告)号:US20100146463A1

    公开(公告)日:2010-06-10

    申请号:US12631298

    申请日:2009-12-04

    IPC分类号: H04W88/02 G06F3/033

    摘要: A watch phone and a method for handling an incoming call using the watch phone are provided. In the watch phone, a display device includes a touch screen panel and a display, turns off the touch screen panel in a watch mode, turns on the touch screen panel in an idle mode or upon receipt of an incoming call, and displays at least two areas for call connection and call rejection, upon receipt of the incoming call. A single mode selection key selects one of the watch mode and the idle mode. A controller performs control operations so that the touch screen panel is turned off in the watch mode and is turned on in the idle mode or upon receipt of the incoming call, and connects or rejects the incoming call, when the at least two areas for call connection or call rejection, which are displayed upon receipt of the incoming call, are pointed to or dragged to.

    摘要翻译: 提供了一种观看手机和使用手表手机处理来电的方法。 在手表电话中,显示装置包括触摸屏面板和显示器,以手表模式关闭触摸屏面板,在空闲模式下或接收到来电时打开触摸屏面板,并至少显示 收到来电后,呼叫连接和呼叫拒绝的两个区域。 单模式选择键选择监视模式和空闲模式之一。 控制器执行控制操作,使得触摸屏面板在观看模式下被关闭,并且在空闲模式下或接收到来电时被接通,并且当至少两个呼叫区域连接或拒绝来电时 接收到来电时显示的连接或呼叫拒绝被指向或拖动到。

    APPARATUS AND METHOD FOR ESTIMATING PHASE ERROR BASED ON VARIABLE STEP SIZE
    68.
    发明申请
    APPARATUS AND METHOD FOR ESTIMATING PHASE ERROR BASED ON VARIABLE STEP SIZE 有权
    基于可变步长估计相位误差的装置和方法

    公开(公告)号:US20100091913A1

    公开(公告)日:2010-04-15

    申请号:US12536856

    申请日:2009-08-06

    IPC分类号: H04L27/06

    摘要: Disclosed is a phase error estimating an apparatus and a method which provides improved convergence speed and tracking speed even in mobile channel environment by variably applying the step size for phase error estimation according to channel status. The apparatus for estimating a phase error includes: a posterior probability (APP) average calculating unit for calculating an APP average value from a soft decision result of a currently received symbol; a step size determining unit for determining a step size variably according to channel status; and a phase error estimating unit for estimating a phase error of the currently received symbol from a phase error of a previously received symbol and the APP average value by using the variably determined step size.

    摘要翻译: 公开了一种相位误差估计装置和方法,即使在移动信道环境中也可以通过根据信道状态可变地应用步长来进行相位误差估计,从而提高收敛速度和跟踪速度。 用于估计相位误差的装置包括:后验概率(APP)平均计算单元,用于根据当前接收的符号的软判决结果计算APP平均值; 步长确定单元,用于根据信道状态可变地确定步长; 以及相位误差估计单元,用于通过使用可变确定的步长来估计来自先前接收到的符号的相位误差的当前接收到的符号的相位误差和APP平均值。

    Frequency offset estimating method and receiver employing the same
    69.
    发明授权
    Frequency offset estimating method and receiver employing the same 失效
    频率偏移估计方法和采用该方法的接收机

    公开(公告)号:US07616710B2

    公开(公告)日:2009-11-10

    申请号:US11297257

    申请日:2005-12-07

    IPC分类号: H04L27/14

    摘要: Provided is a method for estimating carrier wave or doppler frequency offset based on an approximated quadratic non-linear function in fine search, and a receiver employing the method. The method for estimating frequency offset includes the steps of: a) extracting more than three discrete samples in an order where the discrete samples are close to a maximum value of a power spectrum density function; b) inducing a quadratic non-linear function by using the extracted discrete samples; and c) estimating the frequency offset from a maximum point of the quadratic non-linear function. The technology of the present research makes it possible to exactly estimate frequency offset without increasing hardware complexity in estimation of carrier wave or doppler frequency offset.

    摘要翻译: 提供了一种基于精细搜索中的近似二次非线性函数来估计载波或多普勒频率偏移的方法,以及采用该方法的接收机。 用于估计频率偏移的方法包括以下步骤:a)以离散样本接近功率谱密度函数的最大值的顺序提取三个以上的离散样本; b)通过使用提取的离散样本来诱导二次非线性函数; 以及c)从二次非线性函数的最大点估计频率偏移。 本研究的技术使得可以精确估计频偏,而不增加载波或多普勒频偏估计中的硬件复杂度。

    METHOD FOR PACKET SCHEDULING IN SELECTIVE HYBRID ARQ
    70.
    发明申请
    METHOD FOR PACKET SCHEDULING IN SELECTIVE HYBRID ARQ 审中-公开
    选择性混合ARQ中分组调度的方法

    公开(公告)号:US20090241005A1

    公开(公告)日:2009-09-24

    申请号:US12442020

    申请日:2007-09-21

    IPC分类号: H04L1/18 G06F11/14

    摘要: There is provided a method for packet scheduling in a selective hybrid automatic repeat request (HARQ) including the steps of: increasing a priority of a receiver buffer after a packet is transmitted to the receiver; receiving a feedback packet for the transmitted packet and determining whether the feedback packet is an ACK packet or a NACK packet; lowering the priority of the receiver buffer if the feedback packet is an ACK packet; determining whether the feedback packet is a NACK packet for initial transmission or the feedback packet is a NACK packet for retransmission if the feedback packet is the NACK packet, increasing the priority of the receiver buffer if the feedback packet is the NACK packet for the initial transmission, and lowering the priority of the receiver buffer if the feedback packet is the NACK packet for retransmission; and scheduling packets after calculating a priority of each receiver buffer by performing the priority increasing step to the determining step for all of receivers.

    摘要翻译: 提供了一种用于选择性混合自动重复请求(HARQ)中的分组调度的方法,包括以下步骤:在分组被发送到接收机之后增加接收机缓冲器的优先级; 接收所发送的分组的反馈分组,并确定反馈分组是ACK分组还是NACK分组; 如果反馈分组是ACK分组,则降低接收机缓冲器的优先级; 确定反馈分组是否是用于初始传输的NACK分组,或者如果反馈分组是NACK分组,则反馈分组是用于重传的NACK分组,如果反馈分组是用于初始传输的NACK分组,则增加接收机缓冲器的优先级 并且如果反馈分组是用于重发的NACK分组,则降低接收机缓冲器的优先级; 以及通过对所有接收机执行到确定步骤的优先级增加步骤来计算每个接收器缓冲器的优先级之后调度分组。