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    CELL SEARCH PROCEDURE FOR HETEROGENEOUS NETWORKS
    1.
    发明申请
    CELL SEARCH PROCEDURE FOR HETEROGENEOUS NETWORKS 审中-公开
    异构网络的细胞搜索程序

    公开(公告)号：WO2012121660A1

    公开(公告)日：2012-09-13

    申请号：PCT/SE2012/050263

    申请日：2012-03-09

    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  LINDOFF, Bengt ,  NORDSTRÖM, Fredrik

    Inventor： LINDOFF, Bengt ,  NORDSTRÖM, Fredrik

    IPC: H04J11/00 ,  H04W48/16

    CPC classification number: H04W48/16 ,  H04J11/004 ,  H04J11/0076 ,  H04W56/0015 ,  H04W56/0085 ,  H04W84/045 ,  H04W84/047 ,  Y02D70/1262

    Abstract: In a heterogeneous network, low power cells are detected by correlating a first and second signal originating from an unknown cell, such as synchronization signals, e.g., SSS received in a first and second time period (e.g., subframes 0 and of a frame with corresponding sets of possible SSS signals. The cell identities for the candidate cells can be used to determine corresponding reference symbol sequences for the candidate cells. The final determination of the cell identity is then made by correlating a third signal originating from the unknown cell, such as a reference signal received in a third time period (e.g., an almost blank subframe or a broadcastsubframe)with the set of reference signalsfor the candidate cells. The correct cell identity is determined to be the cell identity yielding the greatest correlation with its corresponding reference signal.

    Abstract translation: 在异构网络中，通过将来自未知小区的第一和第二信号相互关联来检测低功率小区，例如同步信号，例如在第一和第二时间段（例如，子帧0和具有对应的帧的帧）中接收的SSS 候选小区的小区标识可以用于确定候选小区的相应参考符号序列，然后通过将源自未知小区的第三信号相关联来进行小区标识的最终确定，例如 在候选小区的第三时间段（例如，几乎空白的子帧或广播的子帧）中接收的参考信号与候选小区的参考信号的集合，确定正确的小区标识是与其对应的参考信号产生最大相关性的小区标识 。

    OPERATION OF USER EQUIPMENT WHEN CONTROL AND DATA INFORMATION ARE SUPPLIED BY DIFFERENT RADIO UNITS
    2.
    发明申请
    OPERATION OF USER EQUIPMENT WHEN CONTROL AND DATA INFORMATION ARE SUPPLIED BY DIFFERENT RADIO UNITS 审中-公开
    控制和数据信息由不同的无线电单元提供时，用户设备的操作

    公开(公告)号：WO2012113642A1

    公开(公告)日：2012-08-30

    申请号：PCT/EP2012/052006

    申请日：2012-02-07

    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  LINDOFF, Bengt ,  NORDSTRÖM, Fredrik

    Inventor： LINDOFF, Bengt ,  NORDSTRÖM, Fredrik

    IPC: H04L27/26 ,  H04W56/00

    CPC classification number: H04L27/2657 ,  H04L5/005 ,  H04L5/0051 ,  H04L25/0204 ,  H04L25/0224 ,  H04L27/2662 ,  H04L27/2672 ,  H04L27/2675 ,  H04L27/2695 ,  H04W56/001 ,  H04W56/0035

    Abstract: A receiver operates in a mobile communication system that comprises first node and second nodes, the first and second nodes transmitting common control signals and dedicated data signals, respectively. The receiver determines a first timing rotation and/or a first frequency rotation of the common control signals and a second timing rotation and/or a second frequency rotation of the dedicated data signals. The receiver determines a first and/or second difference, wherein the first difference is a difference between the first timing rotation of the common control signals and the second timing rotation of the dedicated data signals and the second difference is a difference between the first frequency rotation of the common control signals and the second frequency rotation of the dedicated data signals. An adapted timing of dedicated data signals is produced based on the first and/or second differences, and the adapted timing is used to receive dedicated data signals.

    Abstract translation: 接收机在包括第一节点和第二节点的移动通信系统中工作，第一和第二节点分别发送公共控制信号和专用数据信号。 接收机确定公共控制信号的第一定时旋转和/或第一频率旋转以及专用数据信号的第二定时旋转和/或第二频率旋转。 接收机确定第一和/或第二差异，其中第一差是公共控制信号的第一定时旋转和专用数据信号的第二定时旋转之间的差，第二差是第一频率旋转 的公共控制信号和专用数据信号的第二频率旋转。 基于第一和/或第二差产生专用数据信号的适应定时，并且使用适配的定时来接收专用数据信号。

    A METHOD AND DEVICE FOR AUTOMATIC GAIN CONTROL
    4.
    发明申请
    A METHOD AND DEVICE FOR AUTOMATIC GAIN CONTROL 审中-公开
    一种用于自动增益控制的方法和装置

    公开(公告)号：WO2009080578A1

    公开(公告)日：2009-07-02

    申请号：PCT/EP2008/067502

    申请日：2008-12-15

    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON ,  ANDGART, Niklas ,  BERNHARDSSON, Bo ,  NORDSTRÖM, Fredrik ,  WILHELMSSON, Leif

    Inventor： ANDGART, Niklas ,  BERNHARDSSON, Bo ,  NORDSTRÖM, Fredrik ,  WILHELMSSON, Leif

    IPC: H04L27/26 ,  H03G3/20

    CPC classification number: H04L27/2647 ,  H03G3/3052 ,  H03G3/3078

    Abstract: A method and apparatus for adjusting the gain of an amplifier (202) in a communication receiver comprising: estimating the power of a time domain signal (307); estimating the power distribution on one or more sub-carriers of a frequency domain signal (309) transformed from the time domain signal; and generating a gain control signal for the amplifier based on the estimated power of the time domain signal and the power distribution on sub-carriers of the frequency domain signal (311).

    Abstract translation: 一种用于调整通信接收机中的放大器（202）的增益的方法和装置，包括：估计时域信号的功率（307）; 估计从时域信号变换的频域信号（309）的一个或多个子载波上的功率分布; 以及基于所述时域信号的估计功率和所述频域信号（311）的子载波上的功率分配来生成用于所述放大器的增益控制信号。

    OFDM SIGNAL RECEPTION IN THE PRESENCE OF INTERFERENCE
    6.
    发明申请
    OFDM SIGNAL RECEPTION IN THE PRESENCE OF INTERFERENCE 审中-公开
    OFDM信号接收干扰存在

    公开(公告)号：WO2012025407A1

    公开(公告)日：2012-03-01

    申请号：PCT/EP2011/063937

    申请日：2011-08-12

    Applicant: Telefonaktiebolaget L M Ericsson (publ) ,  KAMUF, Matthias ,  LINDOFF, Bengt ,  MATTISSON, Sven ,  NORDSTRÖM, Fredrik

    Inventor： KAMUF, Matthias ,  LINDOFF, Bengt ,  MATTISSON, Sven ,  NORDSTRÖM, Fredrik

    IPC: H04L25/03 ,  H04L27/26

    CPC classification number: H04L27/2647 ,  H04L25/03292 ,  H04L25/03318 ,  H04L2025/03414

    Abstract: Decoding a received Orthogonal Frequency Division Multiplex (OFDM) signal that occupies a first set of subcarriers in a radio frequency spectrum includes ascertaining an interference model that represents interference occurring in the first set of subcarriers caused by a transmitted OFDM signal that occupies a second set of subcarriers in the radio frequency spectrum. A set of scaled soft values is produced that represents information conveyed by the received OFDM signal over the first set of subcarriers, wherein each scaled soft value in the set of scaled soft values corresponds to a respective one of the subcarriers in the first set of subcarriers, and wherein a scaling amount applied to each of the scaled soft values is based on a corresponding level of interference in said respective one of the subcarriers as indicated by the interference model. A decoding process is performed that generates detected data from the scaled soft values.

    Abstract translation: 解码在无线电频谱中占用第一组子载波的接收的正交频分多路复用（OFDM）信号包括确定干扰模型，其表示由发送的OFDM信号引起的第一组子载波中所发生的干扰，所述OFDM信号占用第二组 无线电频谱中的子载波。 产生一组缩放的软值，其表示在第一组子载波上由接收的OFDM信号传送的信息，其中该缩放的软值集合中的每个缩放的软值对应于第一组子载波中的相应的一个子载波 ，并且其中应用于每个所述缩放的软值的缩放量基于由所述干扰模型指示的所述相应一个子载波中的相应的干扰电平。 执行从缩放的软值生成检测数据的解码处理。

    METHOD AND ARRANGEMENT OF DELAY SPREAD COMPENSATION
    7.
    发明申请
    METHOD AND ARRANGEMENT OF DELAY SPREAD COMPENSATION 审中-公开
    延迟补偿的方法和布置

    公开(公告)号：WO2010084127A1

    公开(公告)日：2010-07-29

    申请号：PCT/EP2010/050629

    申请日：2010-01-20

    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  LINDOFF, Bengt ,  NORDSTRÖM, Fredrik ,  LINCOLN, Bo ,  ROSENQVIST, Anders

    Inventor： LINDOFF, Bengt ,  NORDSTRÖM, Fredrik ,  LINCOLN, Bo ,  ROSENQVIST, Anders

    IPC: H04L25/03

    CPC classification number: H04L25/03006 ,  H04L25/0216 ,  H04L2025/03426

    Abstract: A method of delay spread compensation, suitable for use in a communication device a having plurality of receiver antennas, is disclosed. The method comprises receiving a plurality of signals, each via a respective antenna, wherein each signal comprises a signal component corresponding to a transmitted signal, and wherein each received signal experiences a respective channel impulse response having a corresponding delay spread; determining estimates of each of the channel impulse responses; calculating post-coding characteristics based on the estimates of the channel impulse responses; and post-coding the plurality of received signals using the post- coding characteristics to produce at least a first delay spread compensated signal. Corresponding computer program product, processing arrangement and communication device are also disclosed.

    Abstract translation: 公开了适用于具有多个接收机天线的通信设备中的延迟扩展补偿方法。 该方法包括：经由相应的天线接收多个信号，其中每个信号包括对应于发射信号的信号分量，并且其中每个接收信号经历具有相应延迟扩展的相应信道脉冲响应; 确定每个信道脉冲响应的估计; 基于信道脉冲响应的估计来计算后编码特性; 以及使用所述后编码特征对所述多个接收信号进行后编码，以产生至少第一延迟扩展补偿信号。 还公开了相应的计算机程序产品，处理布置和通信设备。

    A RECEIVER AND A METHOD FOR MOBILE COMMUNICATIONS
    8.
    发明申请
    A RECEIVER AND A METHOD FOR MOBILE COMMUNICATIONS 审中-公开
    接收者和移动通信的方法

    公开(公告)号：WO2010069903A1

    公开(公告)日：2010-06-24

    申请号：PCT/EP2009/067030

    申请日：2009-12-14

    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (publ) ,  LINDOFF, Bengt ,  NORDSTRÖM, Fredrik

    Inventor： LINDOFF, Bengt ,  NORDSTRÖM, Fredrik

    IPC: H04L27/26 ,  H04L25/02

    CPC classification number: H04L5/0032 ,  H04B1/10 ,  H04L25/0204 ,  H04L25/0228 ,  H04L27/2665 ,  H04W56/001

    Abstract: In a method and a mobile communications receiver for processing signals from a first cell and a second cell a timing of the signal from the first cell and the second cell is obtained. A timing difference (δ) between the timings of signals from the first and the second cell is determined and based on that a timing (K) for a window for discrete Fourier transform, DFT, processing is adjusted. DFT processing of the signals using the timing (K) of the DFT window is then performed.

    Abstract translation: 在用于处理来自第一小区和第二小区的信号的方法和移动通信接收机中，获得来自第一小区和第二小区的信号的定时。 确定来自第一和第二小区的信号的定时之间的定时差（d），并且基于用于离散付里叶变换的窗口的时间（K），DFT，处理被调整。 然后执行使用DFT窗口的定时（K）的信号的DFT处理。

    A METHOD AND APPARATUS FOR BLIND DECODING
    9.
    发明申请
    A METHOD AND APPARATUS FOR BLIND DECODING 审中-公开

    公开(公告)号：WO2009074611A3

    公开(公告)日：2009-06-18

    申请号：PCT/EP2008/067231

    申请日：2008-12-10

    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  LINDOFF, Bengt ,  KAMUF, Matthias ,  NORDSTRÖM, Fredrik

    Inventor： LINDOFF, Bengt ,  KAMUF, Matthias ,  NORDSTRÖM, Fredrik

    IPC: H04L1/00

    Abstract: According to the teachings presented herein, a method and apparatus provide a reduced search space for blindly decoding a message included in a signal received at a communication receiver, where the message has an unknown format. Improving blind detection efficiency in this manner offers numerous advantages, including but not limited to lower power consumption through reduced processing overhead, and lower power consumption through expanded sleep opportunities. As a non-limiting example, the communication receiver comprises a mobile station configured for operation according to Long Term Evolution (LTE) standards, as promulgated by the 3GPP for E-UTRA systems, where the mobile station is configured to reduce a search space of DCI message decoding by determining message format likelihoods and blindly decoding a received DCI message based on the message format likelihoods.

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