Method and apparatus for decoding MPE-FEC frame in DVB-H system
    1.
    发明申请
    Method and apparatus for decoding MPE-FEC frame in DVB-H system 审中-公开
    DVB-H系统解码MPE-FEC帧的方法和装置

    公开(公告)号:US20080008155A1

    公开(公告)日:2008-01-10

    申请号:US11506228

    申请日:2006-08-18

    IPC分类号: H04J3/24

    摘要: Provided is a method and apparatus for decoding a Multi-Protocol Encapsulation Forward Error Correction (MPE-FEC) frame in a Digital Video Broadcasting-Handheld (DVB-H) system. Packet Identifier (PID) filtering is performed on a Transport Stream (TS) packet received via a wireless network to detect a TS packet, and a table ID is detected from header information of the section data to identify the section data type. If the section data is an MPE section, frame buffering is performed. If there is a remaining portion in the data region after storage of an IP datagram of the last MPE section, zero-padding is performed on the remaining portion. If the section data is an MPE-FEC section, frame buffering is performed on parity data extracted from the MPE-FEC section.

    摘要翻译: 提供了一种在数字视频广播手持(DVB-H)系统中解码多协议封装前向纠错(MPE-FEC)帧的方法和装置。 在经由无线网络接收的传输流(TS)分组上执行分组标识符(PID)过滤以检测TS分组,并且从分段数据的报头信息检测表ID以识别分段数据类型。 如果段数据是MPE段,则执行帧缓冲。 如果在存储最后MPE部分的IP数据报之后的数据区域中存在剩余部分,则对其余部分执行填补。 如果段数据是MPE-FEC部分,则对从MPE-FEC部分提取的奇偶校验数据执行帧缓冲。

    Gap filler apparatus and method for providing cyclic delay diversity in a digital multimedia broadcasting system, and broadcasting relay network using the same
    2.
    发明授权
    Gap filler apparatus and method for providing cyclic delay diversity in a digital multimedia broadcasting system, and broadcasting relay network using the same 有权
    用于在数字多媒体广播系统中提供循环延迟分集的间隙填充装置和方法,以及使用其的广播中继网络

    公开(公告)号:US07813330B2

    公开(公告)日:2010-10-12

    申请号:US11293638

    申请日:2005-12-02

    IPC分类号: H04B7/216

    摘要: A gap filler apparatus providing cyclic delay diversity in a digital multimedia broadcasting (DMB) system. In the gap filler apparatus, a receiver receives an orthogonal frequency division multiplexing (OFDM) signal transmitted as a broadcasting signal. A symbol synchronization unit acquires symbol synchronization of the OFDM signal, detects a guard interval of an OFDM symbol using the symbol synchronization, determines a sample length, by which the OFDM symbol is cyclic-delayed within the guard interval, and cyclic-delays the OFDM signal by the determined sample length. An amplifier amplifies the cyclic-delayed OFDM signal. A transmitter transmits the amplified OFDM signal to a wireless network.

    摘要翻译: 一种在数字多媒体广播(DMB)系统中提供循环延迟分集的间隙填充装置。 在间隙填充装置中,接收机接收作为广播信号发送的正交频分复用(OFDM)信号。 符号同步单元获取OFDM信号的符号同步,使用符号同步检测OFDM符号的保护间隔,确定OFDM符号在保护间隔内被循环延迟的采样长度,并循环延迟OFDM 通过确定的样本长度信号。 放大器放大循环延迟的OFDM信号。 发射机将放大的OFDM信号发射到无线网络。

    Apparatus and method for optimally compensating for imbalance between in-phase and quadrature-phase in a zero-IF OFDM receiver
    3.
    发明授权
    Apparatus and method for optimally compensating for imbalance between in-phase and quadrature-phase in a zero-IF OFDM receiver 有权
    用于最佳地补偿零中频OFDM接收机中的同相和正交相位之间的不平衡的装置和方法

    公开(公告)号:US07609772B2

    公开(公告)日:2009-10-27

    申请号:US11148179

    申请日:2005-06-09

    IPC分类号: H04L27/28

    摘要: An optimum I/Q imbalance compensating apparatus and method in a zero-IF OFDM receiver. In the apparatus, a first compensator generates a first symbol by removing interference from a second distorted symbol on an (Ns−m+1)th subcarrier from a first distorted symbol on an mth subcarrier by a first compensation coefficient in an OFDM FFT signal of Ns subcarriers. A first hard decider generates a first compensated symbol by hard-decision on the first symbol, an error calculator generates an error symbol by subtracting the first received symbol from the first compensated symbol. A second compensator generates a second symbol by eliminating interference from the first distorted symbol from the second distorted symbol using a second compensation coefficient. A second hard decider generates a second compensated symbol by hard-decision on the second symbol, and an adaptive controller updates the first compensation coefficient using the error symbol and the second compensation symbol.

    摘要翻译: 零中频OFDM接收机中的最佳I / Q不平衡补偿装置和方法。 在该装置中,第一补偿器通过在第(Ns-m + 1)个子载波上从第N个副载波上的第一失真符号中的第二失真符号除去干扰,产生第一符号,第一补偿系数在OFDM FFT信号中的第一补偿系数 Ns副载波。 第一硬判决器通过对第一符号进行硬判决来生成第一补偿符号,误差计算器通过从第一补偿符号减去第一接收符号来生成误差符号。 第二补偿器通过使用第二补偿系数消除来自第二失真符号的来自第一失真符号的干扰来产生第二符号。 第二硬判定器通过第二符号上的硬判决产生第二补偿符号,并且自适应控制器使用误差符号和第二补偿符号来更新第一补偿系数。

    Apparatus and method of multi-cyclic redundancy checking for section detection and reliability information acquisition in a DVB-H system
    4.
    发明申请
    Apparatus and method of multi-cyclic redundancy checking for section detection and reliability information acquisition in a DVB-H system 审中-公开
    DVB-H系统中的段检测和可靠性信息采集的多循环冗余校验装置和方法

    公开(公告)号:US20070130495A1

    公开(公告)日:2007-06-07

    申请号:US11523323

    申请日:2006-09-18

    IPC分类号: H03M13/00

    摘要: A method and apparatus of multi-Cyclic Redundancy Checking (CRC) are provided for section detection and reliability information acquisition in a Digital Video Broadcasting-Handheld (DVB-H) system. A Packet Identifier (PID) filtering process is performed for a packet received through a radio network. A transport stream packet including section data is detected. A CRC process is performed for a payload of an associated section using header information of the section data and frame buffering is processed. The method and apparatus can perform CRC in a parallel fashion using multiple CRC checkers without interference between adjacent sections and can perform section detection and reliability verification.

    摘要翻译: 提供了一种多循环冗余校验(CRC)方法和装置,用于数字视频广播手持(DVB-H)系统中的区段检测和可靠性信息采集。 对通过无线电网络接收的分组执行分组标识符(PID)过滤。 检测包括段数据的传输流分组。 使用区段数据的头部信息对相关区段的有效载荷执行CRC处理,并处理帧缓冲。 该方法和装置可以使用多个CRC检查器以并行方式执行CRC,而不会在相邻部分之间产生干扰,并且可以执行部分​​检测和可靠性验证。

    Apparatus and method for optimally compensating for imbalance between in-phase and quadrature-phase in a zero-IF OFDM receiver
    5.
    发明申请
    Apparatus and method for optimally compensating for imbalance between in-phase and quadrature-phase in a zero-IF OFDM receiver 有权
    用于最佳地补偿零中频OFDM接收机中的同相和正交相位之间的不平衡的装置和方法

    公开(公告)号:US20060182189A1

    公开(公告)日:2006-08-17

    申请号:US11148179

    申请日:2005-06-09

    IPC分类号: H04K1/10

    摘要: An optimum I/Q imbalance compensating apparatus and method in a zero-IF OFDM receiver. In the apparatus, a first compensator generates a first symbol by removing interference from a second distorted symbol on an (Ns−m+1)th subcarrier from a first distorted symbol on an mth subcarrier by a first compensation coefficient in an OFDM FFT signal of Ns subcarriers. A first hard decider generates a first compensated symbol by hard-decision on the first symbol, an error calculator generates an error symbol by subtracting the first received symbol from the first compensated symbol. A second compensator generates a second symbol by eliminating interference from the first distorted symbol from the second distorted symbol using a second compensation coefficient. A second hard decider generates a second compensated symbol by hard-decision on the second symbol, and an adaptive controller updates the first compensation coefficient using the error symbol and the second compensation symbol.

    摘要翻译: 零中频OFDM接收机中的最佳I / Q不平衡补偿装置和方法。 在该装置中,第一补偿器通过从第一失真符号(N SUB S-m + 1)第(S)个子载波上去除来自第二失真符号的干扰来产生第一符号 在第N个子载波上的OFDM FFT信号中的第一补偿系数。 第一硬判决器通过对第一符号进行硬判决来生成第一补偿符号,误差计算器通过从第一补偿符号减去第一接收符号来生成误差符号。 第二补偿器通过使用第二补偿系数消除来自第二失真符号的来自第一失真符号的干扰来产生第二符号。 第二硬判定器通过第二符号上的硬判决产生第二补偿符号,并且自适应控制器使用误差符号和第二补偿符号来更新第一补偿系数。

    Gap filler apparatus and method for providing cyclic delay diversity in a digital multimedia broadcasting system, and broadcasting relay network using the same
    6.
    发明申请
    Gap filler apparatus and method for providing cyclic delay diversity in a digital multimedia broadcasting system, and broadcasting relay network using the same 有权
    用于在数字多媒体广播系统中提供循环延迟分集的间隙填充装置和方法,以及使用其的广播中继网络

    公开(公告)号:US20060120271A1

    公开(公告)日:2006-06-08

    申请号:US11293638

    申请日:2005-12-02

    IPC分类号: H04J11/00

    摘要: A gap filler apparatus providing cyclic delay diversity in a digital multimedia broadcasting (DMB) system. In the gap filler apparatus, a receiver receives an orthogonal frequency division multiplexing (OFDM) signal transmitted as a broadcasting signal. A symbol synchronization unit acquires symbol synchronization of the OFDM signal, detects a guard interval of an OFDM symbol using the symbol synchronization, determines a sample length, by which the OFDM symbol is cyclic-delayed within the guard interval, and cyclic-delays the OFDM signal by the determined sample length. An amplifier amplifies the cyclic-delayed OFDM signal. A transmitter transmits the amplified OFDM signal to a wireless network.

    摘要翻译: 一种在数字多媒体广播(DMB)系统中提供循环延迟分集的间隙填充装置。 在间隙填充装置中,接收机接收作为广播信号发送的正交频分复用(OFDM)信号。 符号同步单元获取OFDM信号的符号同步,使用符号同步检测OFDM符号的保护间隔,确定OFDM符号在保护间隔内被循环延迟的采样长度,并循环延迟OFDM 通过确定的样本长度信号。 放大器放大循环延迟的OFDM信号。 发射机将放大的OFDM信号发射到无线网络。

    Apparatus and method for receiving broadcasting service in a broadcasting system
    7.
    发明申请
    Apparatus and method for receiving broadcasting service in a broadcasting system 有权
    在广播系统中接收广播服务的装置和方法

    公开(公告)号:US20070019761A1

    公开(公告)日:2007-01-25

    申请号:US11488645

    申请日:2006-07-19

    IPC分类号: H04L27/06

    摘要: A broadcasting receiving apparatus and method in a broadcasting system are provided. In a broadcasting receiver, a demodulator demodulates a received broadcasting signal, clips a soft metric value for the demodulated signal to a number of bits, and outputs the clipped soft metric value. A mapper maps the clipped soft metric value to an index value with a resolution inversely proportional to the quantization level of the soft metric value. A deinterleaver deinterleaves the index value and a demapper demaps the deinterleaved index value to a representative value being a soft metric value from a range of soft metric values mapped to the index value. A channel decoder decodes the representative value.

    摘要翻译: 提供广播系统中的广播接收装置和方法。 在广播接收机中,解调器解调所接收的广播信号,将解调信号的软度量值剪除为多个比特,并输出限幅软度量值。 映射器将限幅软度量值映射到具有与软度量值的量化级别成反比的分辨率的索引值。 解交织器对索引值进行解交织,并且解映射器将解交织的索引值从映射到索引值的软度量值的范围中解映射为作为软度量值的代表值。 通道解码器解码代表值。

    Transmitter and receiver for use in a relay network, and system and method for performing transmission and reception using the same
    9.
    发明申请
    Transmitter and receiver for use in a relay network, and system and method for performing transmission and reception using the same 有权
    用于中继网络的发射机和接收机,以及使用其进行发射和接收的系统和方法

    公开(公告)号:US20060115015A1

    公开(公告)日:2006-06-01

    申请号:US11287186

    申请日:2005-11-28

    IPC分类号: H04L1/02

    摘要: An apparatus and method are provided for transmitting high-speed data through a plurality of transmitter antennas using a relay network, receiving signals transmitted from the plurality of transmitter antennas, and removing interference in a mobile communication system. The received signals are despread on a transmitter antenna-by-transmitter antenna basis according to a preset spreading factor. The despread signals are divided into data signals and noise. The signals transmitted through the plurality of transmitter antennas are regenerated from recovered data signals. Data components and interference signal components are identified. The interference signal components are removed from the signals transmitted on the transmitter antenna-by-transmitter antenna basis.

    摘要翻译: 提供一种装置和方法,用于使用中继网络通过多个发射机天线发送高速数据,接收从多个发射机天线发射的信号,以及消除移动通信系统中的干扰。 接收到的信号根据预设的扩频因子在发射机天线逐发射天线上进行解扩。 解扩信号被分为数据信号和噪声。 从恢复的数据信号再生通过多个发射机天线发射的信号。 识别数据组件和干扰信号分量。 干扰信号分量从发射机天线发射天线基础上发射的信号中去除。

    Transmission apparatus and method for a base station using block coding and cyclic delay diversity techniques in an OFDM mobile communication system
    10.
    发明申请
    Transmission apparatus and method for a base station using block coding and cyclic delay diversity techniques in an OFDM mobile communication system 审中-公开
    在OFDM移动通信系统中使用块编码和循环延迟分集技术的基站的发送装置和方法

    公开(公告)号:US20060077886A1

    公开(公告)日:2006-04-13

    申请号:US11246245

    申请日:2005-10-11

    IPC分类号: H04J11/00

    摘要: An apparatus and method are provided for efficiently supporting transmit diversity for identical broadcast signals transmitted from at least two base stations (BSs). A radio network controller (RNC) considers a radio channel state of a mobile station (MS) and sends information for implementing diversity to a plurality of BSs located in one cell configured by three sectors. Each of the BSs is provided with at least two transmit antennas. The BSs within the cell perform space-time block coding on data to be transmitted according to the information, apply different cyclic delays to the data, and transmit the data to the MS through the at least two transmit antennas.

    摘要翻译: 提供了一种用于有效地支持从至少两个基站(BS)发送的相同广播信号的发射分集的装置和方法。 无线电网络控制器(RNC)考虑移动台(MS)的无线电信道状态,并且发送用于实现分集的信息到位于由三个扇区配置的一个小区中的多个BS。 每个BS设置有至少两个发射天线。 小区内的BS根据该信息对要发送的数据执行空时块编码,对数据应用不同的循环延迟,并通过至少两个发射天线向MS发送数据。