Method for handover from home cell to public cell in mobile communication system
    1.
    发明授权
    Method for handover from home cell to public cell in mobile communication system 有权
    移动通信系统中从家庭小区切换到公共小区的方法

    公开(公告)号:US09313699B2

    公开(公告)日:2016-04-12

    申请号:US12745167

    申请日:2008-11-26

    摘要: A method for a connection mode terminal to hand over between a home cell and a public cell in a mobile communication system is provided. In the mobile communication system including the home cell and the public cell, a region of the terminal is determined and a random access channel for the handover is pre-allocated. When the normal handover from the home cell to the public cell fails, the access to the public cell is accomplished using the pre-allocated random access channel. Therefore, the handover failure rate can be lowered.

    摘要翻译: 提供了一种用于在移动通信系统中连接模式终端在家庭小区和公共小区之间切换的方法。 在包括家庭小区和公共小区的移动通信系统中,确定终端的区域,并且预先分配用于切换的随机接入信道。 当从家庭小区到公共小区的正常切换失败时,使用预分配的随机接入信道来实现对公共小区的接入。 因此,可以降低切换失败率。

    Retransmission apparatus and method for high-speed data processing
    2.
    发明授权
    Retransmission apparatus and method for high-speed data processing 有权
    用于高速数据处理的重发设备和方法

    公开(公告)号:US08036101B2

    公开(公告)日:2011-10-11

    申请号:US11800947

    申请日:2007-05-08

    摘要: A method for retransmitting high-speed packet data in a transmission apparatus of a mobile communication system that simultaneously performs Automatic Retransmission reQuest (ARQ) that retransmits an ARQ packet reconfigured by allocating a sequence number to data delivered from an upper layer, and Hybrid Automatic Retransmission reQuest (HARQ) that multiplexes a plurality of ARQ packets into one HARQ packet and performs repeated retransmission on the HARQ packet within a maximum retransmission limit value. A transmitting HARQ entity checks a missing ARQ packet and sends a Negative Acknowledgement (NACK) for the missing ARQ packet to a transmitting ARQ entity. The transmitting ARQ entity receives an Acknowledged (ACK) for ARQ packets from a receiving ARQ entity, detects at least one missing ARQ packet according to the NACK and the ACK, configures a retransmission packet with the detected ARQ packet, and retransmits the retransmission packet.

    摘要翻译: 一种用于在移动通信系统的发送装置中重发高速分组数据的方法,该移动通信系统同时执行自动重传请求(ARQ),其通过向从上层发送的数据分配序列号而重新配置ARQ分组,以及混合自动重传 请求(HARQ),其将多个ARQ分组复用为一个HARQ分组,并且在最大重传限制值内对HARQ分组执行重复重传。 发送HARQ实体检查丢失的ARQ分组,并向发送的ARQ实体发送用于丢失的ARQ分组的否定确认(NACK)。 发送ARQ实体接收来自接收ARQ实体的ARQ报文的确认(ACK),根据NACK和ACK检测至少一个丢失的ARQ报文,配置检测到ARQ报文的重传报文,并重新发送重传报文。

    Apparatus and method for requesting packet retransmission in a wireless communication system
    3.
    发明授权
    Apparatus and method for requesting packet retransmission in a wireless communication system 有权
    一种用于在无线通信系统中请求分组重传的装置和方法

    公开(公告)号:US07940771B2

    公开(公告)日:2011-05-10

    申请号:US12041082

    申请日:2008-03-03

    摘要: A method for requesting packet retransmission in a wireless communication system is provided. The method includes checking, by a receiving-side Automatic Retransmission reQuest (ARQ) layer, sequence numbers of received packets to determine whether there is any missing packet, and starting a first timer in association with the missing packet; stopping the first timer upon receiving an Hybrid ARQ (HARQ) reception failure indicator corresponding to the missing packet, provided from a receiving-side HARQ layer; and stopping generation of a status report message corresponding to the missing packet, and waiting for an ARQ packet corresponding to the missing packet, retransmitted from a transmitting-side ARQ layer.

    摘要翻译: 提供了一种在无线通信系统中请求分组重传的方法。 该方法包括:通过接收侧自动重传请求(ARQ)层检查接收到的分组的序列号,以确定是否存在任何丢失的分组,以及与丢失分组相关联地启动第一定时器; 在从接收侧HARQ层提供的接收到与丢失分组对应的混合ARQ(HARQ)接收失败指示符时停止第一定时器; 并停止生成与丢失的分组相对应的状态报告消息,并且等待从发送方ARQ层重传的丢失分组对应的ARQ分组。

    System and method for compensating timing error using pilot symbol in OFDM/CDMA communication system
    5.
    发明授权
    System and method for compensating timing error using pilot symbol in OFDM/CDMA communication system 有权
    在OFDM / CDMA通信系统中使用导频符号补偿定时误差的系统和方法

    公开(公告)号:US07110387B1

    公开(公告)日:2006-09-19

    申请号:US09677085

    申请日:2000-09-29

    IPC分类号: H04B7/208

    摘要: A timing error compensation system in an OFMD/CDMA communication system includes an analog-to-digital converter for converting an OFDM signal, comprised of a data symbol stream in which a pilot symbol is inserted at intervals of a prescribed number of data symbols, received from a transmitter, to a digital OFDM symbol stream by prescribed sampling synchronization, a guard interval remover for removing a guard interval inserted in the OFDM symbol by prescribed frame synchronization, and a fast Fourier transform (FFT) device for performing fast Fourier transform on the guard interval-removed OFDM symbol and outputting a data symbol stream. In the time error compensation system, a pilot symbol detector receives the data symbol stream and detects the pilot symbols inserted in the data symbol stream at prescribed intervals. A timing compensator determines a linear phase difference line for the detected pilot symbol, generates a timing error estimation signal according to the determined linear phase difference line, and provides the timing error estimation signal to the analog-to-digital converter and the guard interval remover so as to determine the sampling synchronization and the frame synchronization.

    摘要翻译: OFMD / CDMA通信系统中的定时误差补偿系统包括:一个模数转换器,用于转换OFDM信号,该OFDM信号包括一个数据符号流,其中以接收的规定数量的数据符号的间隔插入导频符号 通过规定的采样同步从发射机到数字OFDM符号流;保护间隔去除器,用于通过规定的帧同步去除插入在OFDM符号中的保护间隔;以及快速傅里叶变换(FFT)装置,用于对 保护间隔去除的OFDM符号并输出数据符号流。 在时间误差补偿系统中,导频符号检测器接收数据符号流,并以规定的间隔检测插入在数据符号流中的导频符号。 定时补偿器确定检测到的导频符号的线性相位差线,根据确定的线性相位差线产生定时误差估计信号,并将定时误差估计信号提供给模数转换器和保护间隔去除器 以便确定采样同步和帧同步。

    Apparatus and method for acquiring pilot synchronization in a code division multiple access system
    6.
    发明申请
    Apparatus and method for acquiring pilot synchronization in a code division multiple access system 审中-公开
    用于在码分多址系统中获取导频同步的装置和方法

    公开(公告)号:US20060165041A1

    公开(公告)日:2006-07-27

    申请号:US11336884

    申请日:2006-01-23

    IPC分类号: H04B7/216 H04B3/10

    摘要: An apparatus and method for acquiring a pilot channel in a code division multiple access (CDMA) system. A signal strength detector detects signal strength values for all pseudo-random noise (PN) hypotheses from a despread received signal. A PN hypothesis selector selects PN hypotheses whose detected signal strength values are greater than or equal to a particular threshold. A searcher controller sorts the selected PN hypotheses in order of a high signal strength value, and generates PN sequences in the order of the high signal strength value. A PN sequence generator generates PN sequences for the PN hypotheses. A PN mask shifts a signal output of the PN sequence generator to a position of a PN hypothesis, according to signal strength.

    摘要翻译: 一种用于在码分多址(CDMA)系统中获取导频信道的装置和方法。 信号强度检测器从去扩展的接收信号检测所有伪随机噪声(PN)假设的信号强度值。 PN假设选择器选择其检测信号强度值大于或等于特定阈值的PN假设。 搜索器控制器以高信号强度值的顺序对所选择的PN假设进行排序,并以高信号强度值的顺序产生PN序列。 PN序列发生器产生PN假设的PN序列。 根据信号强度,PN掩模将PN序列发生器的信号输出移位到PN假设的位置。

    Device and method for efficiently driving plasma display panel
    7.
    发明授权
    Device and method for efficiently driving plasma display panel 失效
    用于高效驱动等离子体显示面板的装置和方法

    公开(公告)号:US06888518B2

    公开(公告)日:2005-05-03

    申请号:US10310140

    申请日:2002-12-05

    IPC分类号: G09G3/294 G09G3/296 G09G3/28

    摘要: A highly-efficient device and method for driving a plasma display panel, by which the voltage stresses of circuit elements, which constitute the driving device, are significantly reduced, and power consumption and heat emission are accordingly reduced. Charging and discharging modes, which constitute a sustain mode, are divided into two first and second charging modes, which are pre-charging and post-charging modes, and two first and second discharging modes, which are pre-discharging and post-discharging modes, respectively. The plasma display driving device is designed so that the two charging modes form different resonance paths passing through different inductors, and the two discharging modes also form different resonance paths passing through different inductors. Consequently, voltage stresses applied to the elements of the driving device are halved. Therefore, high-performance low-priced semiconductor devices can be used to form the plasma display panel driving device, and the reactive power of a plasma display panel can be halved.

    摘要翻译: 用于驱动构成驱动装置的电路元件的电压应力的等离子体显示面板的高效率的装置和方法被显着地减少,并且相应地降低了功耗和散热。 构成维持模式的充电和放电模式分为预充电和后充电模式两种第一和第二充电模式,以及两种第一和第二放电模式,这两种模式是预放电模式和放电后模式 , 分别。 等离子体显示驱动装置被设计成使得两种充电模式形成穿过不同电感器的不同谐振路径,并且两种放电模式也形成穿过不同电感器的不同谐振路径。 因此,施加到驱动装置的元件的电压应力减半。 因此,可以使用高性能的低价半导体器件来形成等离子体显示面板驱动装置,并且等离子体显示面板的无功功率可以减半。

    Apparatus and method for receiving data through channels in mobile communication system
    9.
    发明申请
    Apparatus and method for receiving data through channels in mobile communication system 审中-公开
    用于通过移动通信系统中的信道接收数据的装置和方法

    公开(公告)号:US20050073978A1

    公开(公告)日:2005-04-07

    申请号:US10959137

    申请日:2004-10-07

    CPC分类号: H04L1/1816

    摘要: An apparatus for receiving data through channels in a communication system including a first channel for transmitting control information related to a second channel and the second channel for transmitting packet data, the apparatus comprising: a first channel decoder for decoding the first channel and outputting control information; an active Walsh mask storing section for storing a Walsh mask acquired from the control information; a second channel decoder for decoding the second channel using the Walsh mask stored in the active Walsh mask storing section and outputting a decoding result; and a control unit for changing the Walsh mask to a previous Walsh mask if a Walsh mask error is determined according the decoding result.

    摘要翻译: 一种用于在通信系统中通过信道接收数据的装置,包括用于发送与第二信道有关的控制信息的第一信道和用于发送分组数据的第二信道,该装置包括:第一信道解码器,用于解码第一信道并输出控制信息 ; 活动的沃尔什掩模存储部分,用于存储从控制信息获取的沃尔什掩模; 第二信道解码器,用于使用存储在活动沃尔什掩模存储部分中的沃尔什掩模来解码第二信道,并输出解码结果; 以及控制单元,用于如果根据解码结果确定沃尔什掩模误差,则将沃尔什掩模改变为先前的沃尔什掩模。