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    METHOD AND DEVICE FOR PERFORMING CHANNEL ESTIMATION
    1.
    发明申请
    METHOD AND DEVICE FOR PERFORMING CHANNEL ESTIMATION 审中-公开
    用于执行信道估计的方法和设备

    公开(公告)号：WO2018012560A1

    公开(公告)日：2018-01-18

    申请号：PCT/JP2017/025470

    申请日：2017-07-06

    申请人： MITSUBISHI ELECTRIC CORPORATION ,  MITSUBISHI ELECTRIC R&D CENTRE EUROPE B.V.

    发明人： CASTELAIN, Damien ,  MATSUKI, Yuji

    IPC分类号： H04L25/02 ,  H04L25/03 ,  H04L27/26

    CPC分类号： H04L25/03159 ,  H04L25/0228 ,  H04L25/0232 ,  H04L27/2649 ,  H04L27/2695

    摘要： The present invention concerns a method for performing a channel estimation of a channel between a source and a receiver, a noise with a frequency-dependent variance being added to the stream of symbols received by the receiver from the source through the channel, the receiver performing a demodulation in the frequency domain. The method: - extracts symbols at pilot positions from the received stream of symbols, - estimates noise variances at pilot positions, - determines a rough channel estimation from the symbols extracted at pilot positions, - determines weighting coefficients from the estimated noise variances, - weights the rough channel estimation by the determined weighting coefficients, - filters the weighted rough channel estimation using predetermined coefficients, at least one predetermined coefficient being different from the other predetermined coefficients, the predetermined coefficients being determined for a constant noise variance, - determines normalization coefficients from the determined weighting coefficients and predetermined filter coefficients, - normalizes the filtered weighted rough channel estimation using the determined normalization coefficients.

    摘要翻译： 本发明涉及一种用于执行源和接收器之间的信道的信道估计的方法，具有频率相关方差的噪声被添加到由接收器从 通过信道来源，接收机在频域中执行解调。 该方法： - 从接收的符号流中提取导频位置处的符号， - 估计导频位置处的噪声方差， - 根据在导频位置处提取的符号确定粗略信道估计， - 根据估计的噪声方差确定加权系数， - 权重 通过所确定的加权系数对粗糙信道进行估计， - 使用预定系数对加权粗糙信道估计进行滤波，至少一个预定系数不同于其他预定系数，对于恒定噪声方差确定预定系数， - 根据 所确定的加权系数和预定的滤波器系数， - 使用所确定的归一化系数对滤波后的加权粗糙信道估计进行归一化。

    SUPPORT OF DOWNLINK POSITIONING USING COHERENT AND NON-COHERENT SIGNAL ACQUISITION
    2.
    发明申请
    SUPPORT OF DOWNLINK POSITIONING USING COHERENT AND NON-COHERENT SIGNAL ACQUISITION 审中-公开
    使用相关和非相关信号获取支持下行链路定位

    公开(公告)号：WO2017040075A1

    公开(公告)日：2017-03-09

    申请号：PCT/US2016/047925

    申请日：2016-08-20

    申请人： QUALCOMM INCORPORATED

    发明人： EDGE, Stephen William ,  OPSHAUG, Guttorm ,  FISCHER, Sven

    IPC分类号： H04L5/00 ,  H04L27/26 ,  G01S5/10 ,  H04W64/00

    CPC分类号： G01S5/0289 ,  G01S1/20 ,  G01S5/0236 ,  G01S5/0242 ,  G01S5/0252 ,  G01S5/10 ,  H04L5/0048 ,  H04L5/0091 ,  H04L27/2649 ,  H04W64/003

    摘要： Techniques are discussed for conveying frequency error characteristics for a plurality of cell transceivers from a server to a mobile device to enable the mobile device to determine an optimum or near optimum period of coherent integration of a downlink signal from one or more of the plurality of cell transceivers based on the frequency error characteristics. The coherent integration of the downlink signal may be to support a downlink terrestrial positioning method such as the Observed Time Difference of Arrival (OTDOA) method for Long Term Evolution (LTE) and the downlink signal may be a Positioning Reference Signal (PRS). A mobile device may perform downlink signal integration for longer periods than the optimum period for coherent integration by combining coherent integration results using non-coherent integration. The optimum period may achieve maximum or near maximum signal to noise ratio.

    摘要翻译： 讨论了用于将多个小区收发器的频率误差特性从服务器传送到移动设备的技术，以使得移动设备能够确定来自多个小区中的一个或多个的小区的下行链路信号的最佳或近似最佳周期 收发器基于频率误差特性。 下行链路信号的相干整合可以是支持诸如用于长期演进（LTE）的观测到达时间差（OTDOA）方法的下行链路地面定位方法，并且下行链路信号可以是定位参考信号（PRS）。 移动设备可以通过使用非相干整合的相干整合结果来执行比用于相干整合的最佳周期更长的周期的下行链路信号积分。 最佳周期可达到最大或接近最大信噪比。

    방송 신호 송수신 장치 및 방법
    3.
    发明申请
    방송 신호 송수신 장치 및 방법 审中-公开
    发送和接收广播信号的装置和方法

    公开(公告)号：WO2016163620A1

    公开(公告)日：2016-10-13

    申请号：PCT/KR2015/012471

    申请日：2015-11-19

    申请人： 엘지전자(주)

    发明人： 신종웅 ,  고우석 ,  김재형 ,  백종섭 ,  홍성룡

    IPC分类号： H04L1/00 ,  H04L1/06 ,  H04L27/26

    CPC分类号： H04L1/0071 ,  H04B1/10 ,  H04J11/004 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0052 ,  H04L1/007 ,  H04L1/0075 ,  H04L1/04 ,  H04L5/0023 ,  H04L5/005 ,  H04L12/18 ,  H04L27/2613 ,  H04L27/2627 ,  H04L27/2647 ,  H04L27/2649

    摘要： 방송 신호 송신기가 개시된다. 본 발명에 따른 방송 신호 송신기는 코어 레이어 데이터를 FEC 인코딩하는 제 1 BICM 유닛; 인핸스드 레이어 데이터를 FEC 인코딩하는 제 2 BICM 유닛; 상기 코어 레이어 데이터 및 상기 인핸스드 레이어 데이터를 컴바이닝하여 LDM(Layered Division Multiplexing) 데이터를 출력하는 LDM 인젝션 유닛; 상기 LDM 데이터를 타임 인터리빙하는 타임 인터리버; 시그널링 정보를 전달하는 프리앰블 및 상기 LDM 데이터를 포함하는 신호 프레임을 생성하는 프레이밍 유닛 및 상기 신호 프레임에 OFDM 변조를 수행하여 방송 신호를 생성하는 웨이브폼 생성 유닛을 포함한다.

    摘要翻译： 公开了一种广播信号发射机。 根据本发明的广播信号发射机包括：用于对核心层数据进行FEC编码的第一BICM单元; 用于FEC编码增强层数据的第二BICM单元; 分层复用（LDM）注入单元，用于组合核心层数据和增强层数据，从而输出LDM数据; 用于时间交织LDM数据的时间交织器; 用于发送信令信息的前导码; 成帧单元，用于生成包括所述LDM数据的信号帧; 以及波形生成单元，用于通过对信号帧进行OFDM调制来生成广播信号。

    USAGE OF EARLY BITS IN WIRELESS COMMUNICATIONS
    5.
    发明申请
    USAGE OF EARLY BITS IN WIRELESS COMMUNICATIONS 审中-公开
    在无线通信中使用早期位置

    公开(公告)号：WO2016144453A1

    公开(公告)日：2016-09-15

    申请号：PCT/US2016/016691

    申请日：2016-02-05

    申请人： INTEL IP CORPORATION

    发明人： LI, Qinghua ,  HUANG, Po-Kai ,  STACEY, Robert ,  CHEN, Xiaogang ,  ZHU, Yuan

    IPC分类号： H04L27/26

    CPC分类号： H04L27/2649 ,  H04L5/0023 ,  H04L5/0053 ,  H04L27/0012 ,  H04L27/2035 ,  H04L27/2613 ,  H04L27/2666

    摘要： This disclosure describes methods, apparatus, and systems related to early bit indication system. A device may identify a high efficiency frame in accordance with a high efficiency communication standard, received from a first device, the high efficiency frame including at least in part a legacy signal field and a high efficiency signal field. The device may determine a length field included in the legacy signal field. The device may determine one or more bits included in the length field. The device may determine a repeated high efficiency signal field based at least in part on the one or more bits.

    摘要翻译： 本公开描述了与早期位指示系统相关的方法，装置和系统。 设备可以根据从第一设备接收的高效率通信标准识别高效率帧，所述高效率帧至少部分地包括传统信号字段和高效率信号字段。 设备可以确定遗留信号字段中包括的长度字段。 设备可以确定包括在长度字段中的一个或多个比特。 该装置可以至少部分地基于一个或多个比特来确定重复的高效率信号字段。

    방송 신호 송신 장치, 방송 신호 수신 장치, 방송 신호 송신 방법, 및 방송 신호 수신 방법
    7.
    发明申请
    방송 신호 송신 장치, 방송 신호 수신 장치, 방송 신호 송신 방법, 및 방송 신호 수신 방법 审中-公开
    广播信号传输装置，广播信号接收装置，广播信号传输方法和广播信号接收方法

    公开(公告)号：WO2016108366A1

    公开(公告)日：2016-07-07

    申请号：PCT/KR2015/006924

    申请日：2015-07-06

    申请人： 엘지전자 주식회사

    发明人： 백종섭 ,  고우석 ,  백서영 ,  홍성룡

    IPC分类号： H04N21/235 ,  H04N21/234 ,  H04N21/236 ,  H04J11/00

    CPC分类号： H04L27/2605 ,  H03M13/00 ,  H04H40/09 ,  H04L1/0041 ,  H04L1/0058 ,  H04L1/0061 ,  H04L1/0071 ,  H04L1/0075 ,  H04L27/2602 ,  H04L27/2627 ,  H04L27/2649 ,  H04L2001/0093

    摘要： 본 발명의 일 실시예에 따른 방송 신호 수신 방법은 방송 신호들을 수신하는 단계;상기 수신한 방송 신호들을 OFDM (Orthogonal Frequency Division Multiplex) 방식으로 디모듈레이팅하는 단계; 상기 디모듈레이팅된 방송 신호들로부터 적어도 하나 이상의 신호 프레임을 파싱(parsing)하는 단계로서, 하나의 신호 프레임은 적어도 하나의 피지컬 경로(physical path)에 대응하는 서비스 데이터를 포함하고; 상기 적어도 하나 이상의 신호 프레임에 포함된 서비스 데이터를 타임 디인터리빙하는 단계; 상기 타임 디인터리빙된 서비스 데이터를 디코딩하는 단계를 포함할 수 있다.

    摘要翻译： 根据本发明的一个实施例的广播信号接收方法可以包括以下步骤：接收广播信号; 通过正交频分复用（OFDM）方案解调所接收的广播信号; 从解调的广播信号中解析至少一个或多个信号帧，其中一个信号帧包括对应于至少一个物理路径的服务数据; 对包括在所述至少一个或多个信号帧中的服务数据进行时间解交织; 并对解交织的服务数据进行解码。

    METHOD AND RECEIVER IN A WIRELESS COMMUNICATION SYSTEM
    8.
    发明申请
    METHOD AND RECEIVER IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
    无线通信系统中的方法与接收机

    公开(公告)号：WO2016095957A1

    公开(公告)日：2016-06-23

    申请号：PCT/EP2014077896

    申请日：2014-12-16

    申请人： HUAWEI TECH CO LTD ,  RUSEK FREDRIK ,  PRIYANTO BASUKI ENDAH

    发明人： RUSEK FREDRIK ,  PRIYANTO BASUKI ENDAH

    IPC分类号： H04L25/03

    CPC分类号： H04L25/0256 ,  H04B7/0413 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0206 ,  H04L25/0228 ,  H04L25/03159 ,  H04L25/03318 ,  H04L27/2649

    摘要： Receiver (120) and method (500) in a receiver (120), for receiving a signal from a transmitter (110) in a wireless communication system (100), based on OFDM. The method (500) comprises: receiving (501) a plurality of signals y from the transmitter (110); determining (502) a group T of REs for which the CEE is assumed to be constant; extracting (503) the determined (502) group T of REs, from the received (501) signals y; computing (504) noise- and CEE covariance matrix Rww for the extracted (503) T REs, initialised as: Rww = (N0 +Mσ2)I; computing (505) a MMSE filter WMMSE, based on the computed (504) noise- and CEE covariance matrix Rww; and obtaining (506) an MMSE estimate ^x of pay-load data x comprised in the received (501) signals y, associated with the extracted (503) T REs by applying the computed (505) filter WMMSE to the extracted (503) T REs of the received (501) signals: ^x = WMMSEy.

    摘要翻译： 接收器（120）和方法（500），用于在无线通信系统（100）中基于OFDM接收来自发射器（110）的信号。 方法（500）包括：从发射机（110）接收（501）多个信号y; 确定（502）CEE被假定为恒定的RE组T; 从接收的（501）信号y中提取（503）确定的（502）RE的组T; 对于提取的（503）T RE，计算（504）噪声和CEE协方差矩阵Rww，初始化为：Rww =（N0 +Mσ2）I; 基于所计算的（504）噪声和CEE协方差矩阵Rww来计算（505）MMSE滤波器WMMSE; 以及通过将所计算的（505）滤波器WMMSE应用于所提取的（503）T（503），获得包括在与所提取的（503）T RE相关联的接收的（501）信号y中的付费负载数据x的MMSE估计^ 收到的（501）信号的T RE：^ x = WMMSEy。

    MULTI IQ-PATH SYNCHRONIZATION
    9.
    发明申请
    MULTI IQ-PATH SYNCHRONIZATION 审中-公开
    多智能路径同步

    公开(公告)号：WO2016028993A1

    公开(公告)日：2016-02-25

    申请号：PCT/US2015/046073

    申请日：2015-08-20

    申请人： QUALCOMM INCORPORATED

    发明人： CHOI, Kiyong ,  YANG, Jeongsik ,  KO, Jin-Su ,  ZENG, Yi

    IPC分类号： H04W56/00

    CPC分类号： H04L27/2662 ,  H04L27/2627 ,  H04L27/2649 ,  H04W56/0035

    摘要： Aspects of a wireless apparatus and a method for handling a modulated signal include a frequency generator that produces a clock signal, a first synchronization circuit that generates a first sync enable signal based on an even edge of the clock signal, a second synchronization circuit that generates a second sync enable signal based on an even edge of the clock signal, a first divider having a first initial operating condition that generates a first IQ path based on the first sync enable signal, and a second divider having a second initial operating condition that generates a second IQ path based on the second sync enable signal, wherein the first and second operating conditions are not equal when initially powered.

    摘要翻译： 无线装置和处理调制信号的方法的方面包括产生时钟信号的频率发生器，基于时钟信号的偶边产生第一同步使能信号的第一同步电路，产生 基于所述时钟信号的偶边的第二同步使能信号，具有基于所述第一同步使能信号产生第一IQ路径的第一初始操作条件的第一分频器，以及产生第二初始操作条件的第二分频器， 基于第二同步使能信号的第二IQ路径，其中当初始供电时，第一和第二操作条件不相等。