Apparatus and method for generating and decoding forward error correction codes having variable rate in a high-rate wireless data communication system
    3.
    发明授权
    Apparatus and method for generating and decoding forward error correction codes having variable rate in a high-rate wireless data communication system 有权
    用于在高速率无线数据通信系统中产生和解码具有可变速率的前向纠错码的装置和方法

    公开(公告)号:US07523382B2

    公开(公告)日:2009-04-21

    申请号:US11038183

    申请日:2005-01-21

    IPC分类号: H03M13/00

    摘要: An apparatus for generating Quasi-Complementary Duo-Binary Turbo Codes (QC-DBTC). The apparatus includes a QC-DBTC encoder which receives an information symbol stream and generates a plurality of systematic symbol streams and a plurality of parity symbol streams according to a given code rate. The apparatus further includes a quad-symbol mapper which quad-maps the systematic symbol streams to one symbol stream, a channel interleaver which independently interleaves the quad-mapped systematic symbol stream and the parity symbol streams, quad-demaps the quad-mapped systematic symbol stream, interlaces symbols in parity symbol streams, and serial-concatenates the quad-demapped systematic symbol stream to the interlaced parity symbol streams. A duo-binary turbo code generator is further provided to repeat the serial-concatenated symbol stream, and select a predetermined number of symbols from the repeated symbol stream according to a code rate and selection information, thereby generating QC-DBTC codes.

    摘要翻译: 一种用于产生准互补二进制Turbo码(QC-DBTC)的装置。 该装置包括QC-DBTC编码器,其接收信息符号流,并根据给定的码率产生多个系统符号流和多个奇偶校验符号流。 该装置还包括将系统符号流四维映射到一个符号流的四符号映射器,独立地交错四映射系统符号流和奇偶校验符号流的信道交织器,将四映射系统符号 流,在奇偶校验符号流中交织符号,并将四次映射映射的系统符号流串行连接到隔行扫描奇偶校验符号流。 进一步提供二进制二进制turbo码发生器以重复串联连接的符号流,并根据码率和选择信息从重复符号流中选择预定数量的码元,由此产生QC-DBTC码。

    Modulating and coding apparatus and method in a high-rate wireless data communication system
    4.
    发明申请
    Modulating and coding apparatus and method in a high-rate wireless data communication system 审中-公开
    高速率无线数据通信系统中的调制编码装置和方法

    公开(公告)号:US20050157803A1

    公开(公告)日:2005-07-21

    申请号:US11038181

    申请日:2005-01-21

    摘要: An apparatus and method for determining a modulation order of packet data to be transmitted through a subcarrier in a transmission apparatus. In the apparatus and method, transmitter physical channels encode and modulate data to transmit the user data with OFDM symbols. A controller outputs packet data to the transmitter physical channels, and determines the number of transmission slots, the number of OFDM symbols, the number of subchannels, and a size of an encoder packet. A modulation order and code rate decider receives, from the controller, the number of transmission slots, the number of OFDM symbols, the number of subchannels, and a size of an encoder packet, calculates a Modulation order Product code Rate (MPR), determines a modulation order according to the MPR, and outputs the determined modulation order to a corresponding physical channel.

    摘要翻译: 一种用于确定要在发送装置中通过副载波发送的分组数据的调制阶数的装置和方法。 在装置和方法中,发射机物理信道编码和调制数据以用OFDM符号发送用户数据。 控制器将分组数据输出到发射机物理信道,并且确定发送时隙的数量,OFDM符号的数量,子信道的数量以及编码器分组的大小。 调制次序和码率判定器从控制器接收发送时隙的数量,OFDM符号的数量,子信道的数量和编码器分组的大小,计算调制阶乘积码率(MPR),确定 根据MPR的调制顺序,并将所确定的调制顺序输出到对应的物理信道。

    Apparatus and method for generating and decoding forward error correction codes having variable rate in a high-rate wireless data communication system
    5.
    发明申请
    Apparatus and method for generating and decoding forward error correction codes having variable rate in a high-rate wireless data communication system 有权
    用于在高速率无线数据通信系统中产生和解码具有可变速率的前向纠错码的装置和方法

    公开(公告)号:US20050160347A1

    公开(公告)日:2005-07-21

    申请号:US11038183

    申请日:2005-01-21

    摘要: An apparatus for generating Quasi-Complementary Duo-Binary Turbo Codes (QC-DBTC). The apparatus includes a QC-DBTC encoder which receives an information symbol stream and generates a plurality of systematic symbol streams and a plurality of parity symbol streams according to a given code rate. The apparatus further includes a quad-symbol mapper which quad-maps the systematic symbol streams to one symbol stream, a channel interleaver which independently interleaves the quad-mapped systematic symbol stream and the parity symbol streams, quad-demaps the quad-mapped systematic symbol stream, interlaces symbols in parity symbol streams, and serial-concatenates the quad-demapped systematic symbol stream to the interlaced parity symbol streams. A duo-binary turbo code generator is further provided to repeat the serial-concatenated symbol stream, and select a predetermined number of symbols from the repeated symbol stream according to a code rate and selection information, thereby generating QC-DBTC codes.

    摘要翻译: 一种用于产生准互补二进制Turbo码(QC-DBTC)的装置。 该装置包括QC-DBTC编码器,其接收信息符号流,并根据给定的码率产生多个系统符号流和多个奇偶校验符号流。 该装置还包括将系统符号流四维映射到一个符号流的四符号映射器,独立地交错四映射系统符号流和奇偶校验符号流的信道交织器,将四映射系统符号 流,在奇偶校验符号流中交织符号,并将四次映射映射的系统符号流串行连接到隔行扫描奇偶校验符号流。 进一步提供二进制二进制turbo码发生器以重复串联连接的符号流,并根据码率和选择信息从重复符号流中选择预定数量的码元,由此产生QC-DBTC码。

    Apparatus and method for transmitting and receiving a signal in an orthogonal frequency division multiplexing system
    6.
    发明申请
    Apparatus and method for transmitting and receiving a signal in an orthogonal frequency division multiplexing system 审中-公开
    用于在正交频分复用系统中发送和接收信号的装置和方法

    公开(公告)号:US20060018250A1

    公开(公告)日:2006-01-26

    申请号:US11185968

    申请日:2005-07-21

    IPC分类号: H04J11/00

    摘要: A system and method for effectively providing an adaptive modulation scheme and known-cyclic prefix (CP) technology in an orthogonal frequency division multiplexing (OFDM) communication system. An OFDM transmission system variably generates a known CP while considering a channel state. Pilot subcarrier position information for generating the known CP is sent to a transmitter. Pilot subcarriers are selected on the basis of a channel state of an OFDM symbol through which data is transmitted and the known CP is generated, such that data transmission is provided efficiently.

    摘要翻译: 一种用于在正交频分复用(OFDM)通信系统中有效提供自适应调制方案和已知循环前缀(CP)技术的系统和方法。 在考虑信道状态的同时,OFDM传输系统可变地生成已知的CP。 用于产生已知CP的导频副载波位置信息被发送到发射机。 基于通过其发送数据并生成已知CP的OFDM符号的信道状态来选择导频子载波,使得有效地提供数据传输。

    Apparatus and method for hard handover in a wireless communication system
    7.
    发明授权
    Apparatus and method for hard handover in a wireless communication system 有权
    无线通信系统中硬切换的装置和方法

    公开(公告)号:US07860502B2

    公开(公告)日:2010-12-28

    申请号:US11636456

    申请日:2006-12-11

    IPC分类号: H04W36/00 H04W4/00 H04B7/00

    摘要: Provided is a hard handover method in a wireless communication system. The hard handover method includes checking a signal-to-noise ratio (SNR) of a signal received from each of at least one neighboring base station (BS) while in communication with a serving BS, and canceling interference if the SNR of the signal received from each of the at least one neighboring BSs satisfies a select condition; sending a handover request to the serving BS, if a difference between a SNR of the interference-canceled signal and a SNR of the interference signal reaches a handover request threshold; and upon receipt of a handover approval from the serving BS, releasing a communication channel to the serving BS, and connecting a call to a BS that provides an interference signal whose SNR has reached the threshold.

    摘要翻译: 提供了一种在无线通信系统中的硬切换方法。 硬切换方法包括在与服务BS进行通信时检查从至少一个相邻基站(BS)中的每一个接收的信号的信噪比(SNR),以及如果接收到的信号的SNR被消除则消除干扰 从所述至少一个相邻BS中的每一个满足选择条件; 如果所述干扰消除信号的SNR与所述干扰信号的SNR之间的差达到切换请求阈值,则向所述服务BS发送切换请求; 并且在从服务BS接收到切换批准时,向服务BS发布通信信道,并且将呼叫连接到提供SNR达到阈值的干扰信号的BS。

    Apparatus and method for hard handover in a wireless communication system
    8.
    发明申请
    Apparatus and method for hard handover in a wireless communication system 有权
    无线通信系统中硬切换的装置和方法

    公开(公告)号:US20070135125A1

    公开(公告)日:2007-06-14

    申请号:US11636456

    申请日:2006-12-11

    IPC分类号: H04Q7/20

    摘要: Provided is a hard handover method in a wireless communication system. The hard handover method includes checking a signal-to-noise ratio (SNR) of a signal received from each of at least one neighboring base station (BS) while in communication with a serving BS, and canceling interference if the SNR of the signal received from each of the at least one neighboring BSs satisfies a select condition; sending a handover request to the serving BS, if a difference between a SNR of the interference-canceled signal and a SNR of the interference signal reaches a handover request threshold; and upon receipt of a handover approval from the serving BS, releasing a communication channel to the serving BS, and connecting a call to a BS that provides an interference signal whose SNR has reached the threshold.

    摘要翻译: 提供了一种在无线通信系统中的硬切换方法。 硬切换方法包括在与服务BS进行通信时检查从至少一个相邻基站(BS)中的每一个接收的信号的信噪比(SNR),以及如果接收到的信号的SNR被消除则消除干扰 从所述至少一个相邻BS中的每一个满足选择条件; 如果所述干扰消除信号的SNR与所述干扰信号的SNR之间的差达到切换请求阈值,则向所述服务BS发送切换请求; 并且在从服务BS接收到切换批准时,向服务BS发布通信信道,并且将呼叫连接到提供SNR达到阈值的干扰信号的BS。

    Apparatus and method for controlling an output buffer in a hybrid automatic repeat request (HARQ) mobile communication system
    9.
    发明授权
    Apparatus and method for controlling an output buffer in a hybrid automatic repeat request (HARQ) mobile communication system 有权
    用于控制混合自动重传请求(HARQ)移动通信系统中的输出缓冲器的装置和方法

    公开(公告)号:US07499417B2

    公开(公告)日:2009-03-03

    申请号:US10752101

    申请日:2004-01-07

    IPC分类号: H04B7/00

    摘要: A mobile station apparatus and method provide for receiving packet data transmitted over a packet data channel, decoding the received packet data and delivering the decoded packet data to an upper layer in a mobile communication system transmitting packet data transmitted over a forward packet data channel and transmitting, over a forward packet data control channel, demodulation and decoding information of packet data transmitted over the forward packet data channel. The apparatus and method comprise a fast turbo decoder for decoding packet data received over the packet data channel depending on information received over the forward packet data control channel, storing the decoded data, and outputting buffer information of the stored data; an output buffer for storing the received packet data, and outputting the packet data upon receiving a read request. The apparatus and method further comprise an output buffer controller for receiving information on the decoded data and the buffer information from the fast turbo decoder, and generating an interrupt signal and a read address for reading data stored in the output buffer using the received data information and buffer information; and a processor for reading data stored in the output buffer according to the read address upon receiving the interrupt signal from the output buffer controller.

    摘要翻译: 一种移动站装置和方法,用于接收通过分组数据信道发送的分组数据,对接收到的分组数据进行解码,并将解码的分组数据传送到移动通信系统中的上层,该移动通信系统发送通过前向分组数据信道发送的分组数据,并发送 在前向分组数据控制信道上,通过前向分组数据信道发送的分组数据的解调和解码信息。 该装置和方法包括:快速turbo解码器,用于根据在前向分组数据控制信道上接收的信息,解码分组数据信道上接收的分组数据,存储解码数据,并输出所存储数据的缓冲器信息; 用于存储所接收的分组数据的输出缓冲器,以及在接收到读取请求时输出分组数据。 该装置和方法还包括输出缓冲器控制器,用于从快速turbo解码器接收关于解码数据和缓冲器信息的信息,并且使用所接收的数据信息产生用于读取存储在输出缓冲器中的数据的中断信号和读地址;以及 缓冲信息; 以及处理器,用于在从输出缓冲器控制器接收到中断信号时,根据读取地址读取存储在输出缓冲器中的数据。

    Apparatus and method for receiving control message on packet data control channel in a mobile communication system supporting packet data service
    10.
    发明授权
    Apparatus and method for receiving control message on packet data control channel in a mobile communication system supporting packet data service 有权
    在支持分组数据业务的移动通信系统中,在分组数据控制信道上接收控制消息的装置和方法

    公开(公告)号:US07486642B2

    公开(公告)日:2009-02-03

    申请号:US10963539

    申请日:2004-10-14

    IPC分类号: H04Q7/00

    摘要: An apparatus and method for receiving a packet data control channel in a mobile communication system that transmits packet data and has the packet data control channel for transmitting control information related to transmission of packet data are provided. A receiver receives and despreads a signal on the packet data channel and a signal on the packet data control channel, separately outputs the signals, and estimates a noise of a received signal. A signal level detector receives a noise estimation value and samples of the packet data control channel signal from the receiver, and outputs a validity signal for detecting whether information is received over the packet data control channel. A packet data control channel decoder decodes the packet data control channel signal if the validity signal received from the signal level detector is valid.

    摘要翻译: 提供一种用于在发送分组数据的移动通信系统中接收分组数据控制信道的装置和方法,并且具有用于发送与分组数据的发送相关的控制信息的分组数据控制信道。 接收器接收并解扩分组数据信道上的信号和分组数据控制信道上的信号,分别输出信号,并估计接收信号的噪声。 信号电平检测器从接收器接收噪声估计值和分组数据控制信道信号的采样,并且输出用于检测是否通过分组数据控制信道接收信息的有效信号。 如果从信号电平检测器接收到的有效信号有效,则分组数据控制信道解码器对分组数据控制信道信号进行解码。