OFDM reception device, OFDM reception circuit, OFDM reception method, and OFDM reception program
    21.
    发明授权
    OFDM reception device, OFDM reception circuit, OFDM reception method, and OFDM reception program 有权
    OFDM接收装置,OFDM接收电路,OFDM接收方法和OFDM接收程序

    公开(公告)号:US08699632B2

    公开(公告)日:2014-04-15

    申请号:US13503749

    申请日:2011-09-15

    IPC分类号: H04L27/06

    CPC分类号: H04L27/2607 H04L27/265

    摘要: An OFDM reception device receives an OFDM symbol that includes a signal for a useful symbol duration generated based on transmission information and a signal for a guard interval duration generated based on the signal for the useful symbol duration. The OFDM reception device includes a first orthogonal transformation unit configured to perform an orthogonal transformation on the signal for the useful symbol duration, a second orthogonal transformation unit configured to perform an orthogonal transformation on the signal for the guard interval duration, and a decoding unit configured to decode the OFDM symbol in accordance with results of the orthogonal transformation by the first orthogonal transformation unit and results of the orthogonal transformation by the second orthogonal transformation unit.

    摘要翻译: OFDM接收设备接收包括用于基于传输信息生成的有用符号持续时间的信号的OFDM符号,以及基于有用符号持续时间的信号产生的用于保护间隔持续时间的信号。 OFDM接收装置包括:第一正交变换单元,被配置为对有用符号持续时间的信号执行正交变换;第二正交变换单元,被配置为对保护间隔持续时间的信号执行正交变换;以及解码单元, 根据第一正交变换单元的正交变换结果和第二正交变换单位的正交变换结果对OFDM符号进行解码。

    OFDM RECEPTION DEVICE, OFDM RECEPTION CIRCUIT, OFDM RECEPTION METHOD, AND OFDM RECEPTION PROGRAM
    22.
    发明申请
    OFDM RECEPTION DEVICE, OFDM RECEPTION CIRCUIT, OFDM RECEPTION METHOD, AND OFDM RECEPTION PROGRAM 有权
    OFDM接收设备,OFDM接收电路,OFDM接收方法和OFDM接收程序

    公开(公告)号:US20120321021A1

    公开(公告)日:2012-12-20

    申请号:US13519203

    申请日:2011-10-03

    IPC分类号: H04L27/06

    摘要: An OFDM reception device A comprises: a first orthogonal transformation unit A1 that orthogonally transforms a signal for a useful symbol duration included in an OFDM signal and outputs a resulting orthogonally transformed signal; a second orthogonal transformation unit A2 that orthogonally transforms a signal for a guard interval duration included in the OFDM signal and outputs a resulting orthogonally transformed signal; a detection unit A3 that detects a wide band carrier frequency error amount according to the signal output from the first orthogonal transformation unit A1 and the signal output from the second orthogonal transformation unit A2; and a correction unit that corrects a wide band carrier frequency shift of the OFDM symbol according to the wide band carrier frequency error amount detected by the detection unit A3.

    摘要翻译: OFDM接收装置A包括:第一正交变换单元A1,对包含在OFDM信号中的有用符号持续时间的信号进行正交变换,并输出得到的正交变换信号; 第二正交变换单元A2,对包含在OFDM信号中的保护间隔持续时间的信号进行正交变换,并输出得到的正交变换信号; 检测单元A3,其根据从第一正交变换单元A1输出的信号和从第二正交变换单元A2输出的信号检测宽带载波频率误差量; 以及校正单元,其根据由检测单元A3检测到的宽带载波频率误差量来校正OFDM符号的宽带载波频移。

    TRANSMITTING APPARATUS, RECEIVING APPARATUS, TRANSMITTING METHOD, AND RECEIVING METHOD
    23.
    发明申请
    TRANSMITTING APPARATUS, RECEIVING APPARATUS, TRANSMITTING METHOD, AND RECEIVING METHOD 有权
    发送装置,接收装置,发送方法和接收方法

    公开(公告)号:US20120307159A1

    公开(公告)日:2012-12-06

    申请号:US13577599

    申请日:2011-12-09

    IPC分类号: H04N5/38 H04N5/44

    摘要: In order to implement both a physical later pipe (PLP) structure and a plurality of receiver classes, a transmitting apparatus includes: a signaling information generation unit which generates signaling information including a transmission parameter for each of PLPs; a PLP processing group which performs processing based on the transmission parameter for each of the PLPs; and a transmitting unit which transmits data including the generated signaling information and PLP data for each of the PLPs. The PLP data is received by a receiving apparatus that is indicated by a flag of the PLP and is not received by another receiving apparatus, the receiving apparatuses being included in a plurality of receiving apparatuses classified under a plurality of states. The generated signaling information includes, as the transmission parameter for each of the PLPs, the flag of the PLP.

    摘要翻译: 为了实现物理以后的管道(PLP)结构和多个接收器类别,发送装置包括:信令信息生成单元,生成包括每个PLP的发送参数的信令信息; 基于每个PLP的传输参数执行处理的PLP处理组; 以及发送单元,其发送包括针对每个PLP的生成的信令信息和PLP数据的数据。 PLP数据由PLP的标志指示的接收装置接收,不被另一个接收装置接收,该接收装置被包括在多个状态下分类的多个接收装置中。 所生成的信令信息包括PLP的标志作为每个PLP的发送参数。

    RECEPTION DEVICE, INTEGRATED CIRCUIT, DIGITAL TELEVISION RECEIVER, RECEPTION METHOD, AND RECEPTION PROGRAM
    24.
    发明申请
    RECEPTION DEVICE, INTEGRATED CIRCUIT, DIGITAL TELEVISION RECEIVER, RECEPTION METHOD, AND RECEPTION PROGRAM 有权
    接收设备,集成电路,数字电视接收机,接收方式和接收方案

    公开(公告)号:US20100309383A1

    公开(公告)日:2010-12-09

    申请号:US12670934

    申请日:2009-06-11

    IPC分类号: H04L27/00 H04N5/44

    摘要: An orthogonal transform subunit 14 separates a reception signal into carriers on a per-symbol basis. In a channel characteristics estimation subunit 15, (i) an SP channel characteristics estimation part 20 calculates channel characteristics at carriers to which SPs are allocated, by using signals output from the orthogonal transform subunit 14, (ii) a symbol direction interpolation part 30 interpolates, in the symbol (time) direction, signals output from the SP channel characteristics estimation part 20, (iii) a TMCC channel characteristics estimation part 40 calculates channel characteristics at carriers to which TMCCs are allocated, by using signals output from the orthogonal transfer subunit 14, and (iv) an adaptive interpolation part 50 calculates filter coefficients by using signals output from the symbol direction interpolation part 30 and the TMCC channel characteristics estimation part 40, and adaptively interpolates signals output from the symbol direction interpolation part 30 by using values of the calculated filter coefficients.

    摘要翻译: 正交变换子单元14将每个符号的接收信号分离为载波。 在信道特性估计子单元15中,(i)SP信道特性估计部20通过使用从正交变换子单元14输出的信号来计算分配有SP的载波的信道特性,(ii)符号方向插值部30内插 在符号(时间)方向上,从SP信道特性估计部20输出的信号,(iii)TMCC信道特性估计部40通过使用从正交转移子单元输出的信号来计算分配有TMCC的载波的信道特性 如图14所示,(iv)自适应插值部50使用从符号方向内插部30和TMCC信道特性估计部40输出的信号来计算滤波器系数,并且使用从符号方向插值部30输出的信号自适应地内插 计算滤波器系数。

    INTER-CARRIER INTERFERENCE REMOVAL DEVICE AND RECEPTION DEVICE USING THE SAME
    25.
    发明申请
    INTER-CARRIER INTERFERENCE REMOVAL DEVICE AND RECEPTION DEVICE USING THE SAME 有权
    使用相同的载波间干扰去除装置和接收装置

    公开(公告)号:US20090225913A1

    公开(公告)日:2009-09-10

    申请号:US12090735

    申请日:2006-10-20

    IPC分类号: H04B1/10 H04B7/08

    摘要: An inter-carrier interface removal device can improve estimation accuracy of inter-carrier interference caused by Doppler shift in a received multi-carrier signal moving at a high speed, and a reception characteristic of the multi-carrier signal after removing the inter-carrier interference. The inter-carrier interference removal device includes: a channel estimation unit (101) estimating a channel frequency characteristic according to a carrier signal; an equalization unit (102) equalizing the carrier signal with the channel frequency characteristic and outputs tentative carrier data; a reliability value calculation unit (103) calculating a reliability value according to the channel frequency characteristic; a weighting unit (104) weighting the tentative carrier data with the reliability value; and an ICI component estimation unit (106) estimating an ICI component according to the weighted tentative carrier data and the estimated channel frequency characteristic; and an ICI removal calculation unit (107) removing the ICI component from the carrier signal.

    摘要翻译: 载波间接口去除装置可以提高在高速移动的接收多载波信号中由多普勒频移引起的载波间干扰的估计精度,以及去除载波间干扰后的多载波信号的接收特性 。 载波间干扰去除装置包括:信道估计单元,根据载波信号估计信道频率特性; 平衡载波信号与信道频率特性的均衡单元(102),并输出临时载波数据; 可靠性值计算单元,根据信道频率特性计算可靠性值; 加权单元,用可靠性值对所述暂时载波数据进行加权; 以及ICI分量估计单元,根据加权的假定载波数据和估计的信道频率特性来估计ICI分量; 以及ICI去除计算单元,从载波信号中去除ICI分量。