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    • 42. 发明授权
    • Method for precoding using a block diagonal matrix
    • 使用块对角矩阵进行预编码的方法
    • US08644415B2
    • 2014-02-04
    • US12522863
    • 2007-12-21
    • George JöngrenBo Göransson
    • George JöngrenBo Göransson
    • H04B15/00H04B7/216H03C7/02
    • H04B7/0456H04B7/0413H04B7/0469H04B7/0617H04B7/10
    • An objective problem of the invention is to provide a mechanism for improving the performance of a radio access network. According to a first aspect of the present invention, the object is achieved by a method in a first node for adapting a multi-antenna transmission to a second node over an effective channel. The first node and the second node are comprised in a wireless communication system. The method comprises the steps of obtaining at least one symbol stream and determining a precoding matrix having a block diagonal structure. The method comprises the further steps of precoding the at least one symbol stream with the determined precoding matrix, and transmitting the at least one precoded symbol stream over the effective channel to the second node.
    • 本发明的客观问题是提供一种改善无线电接入网络性能的机制。 根据本发明的第一方面,该目的通过第一节点中的方法来实现,用于通过有效信道将多天线传输适配到第二节点。 第一节点和第二节点包括在无线通信系统中。 该方法包括以下步骤:获得至少一个符号流并确定具有块对角结构的预编码矩阵。 该方法还包括以下步骤:用所确定的预编码矩阵预编码至少一个符号流,以及将有效信道上的至少一个预编码符号流发送到第二节点。
    • 43. 发明授权
    • HARQ in spatial multiplexing MIMO system
    • HARQ在空间复用MIMO系统中
    • US08498246B2
    • 2013-07-30
    • US13246530
    • 2011-09-27
    • Bo GöranssonPer Johan TorsnerStefan Parkvall
    • Bo GöranssonPer Johan TorsnerStefan Parkvall
    • H04L27/00H04L1/18H04W24/00H04B7/02
    • H04L1/1887H04B7/0697H04L1/0003H04L1/0007H04L1/0009H04L1/06H04L1/1812H04L1/1822H04L1/1896H04W72/1284H04W84/042
    • A method and apparatus for signaling scheduling information in a spatial multiplexing wireless communications system, as well as corresponding methods and apparatus for processing such signaling information, are disclosed. Signaling scheduling information includes scheduling first and second transport blocks for simultaneous transmission during a first transmission interval on first and second data substreams, respectively, and assigning a single re-transmission process identifier for the first transmission interval and transmitting first scheduling information for the first transmission interval. The first scheduling information includes the re-transmission process identifier and first disambiguation data. Additionally, at least one of the first and second transport blocks is scheduled for re-transmission during a second transmission interval. Second scheduling information for the second transmission interval is also transmitted; the second scheduling information including the re-transmission process identifier and second disambiguation data.
    • 公开了一种在空间复用无线通信系统中用于信令调度信息的方法和装置,以及用于处理这种信令信息的相应方法和装置。 信令调度信息包括分别在第一和第二数据子流上的第一传输间隔期间调度用于同时传输的第一和第二传输块,并为第一传输间隔分配单个重传过程标识符,并发送用于第一传输的第一调度信息 间隔。 第一调度信息包括重发过程标识符和第一消歧数据。 此外,第一传输块和第二传输块中的至少一个被调度用于在第二传输间隔期间重传。 也发送第二传输间隔的第二调度信息; 第二调度信息包括重发过程标识符和第二消歧数据。
    • 45. 发明授权
    • Calibration method and device in telecommunication system
    • 电信系统中的校准方法和设备
    • US08401485B2
    • 2013-03-19
    • US12522794
    • 2008-02-06
    • George JöngrenDavid AstelyBo GöranssonJonas B. Karlsson
    • George JöngrenDavid AstelyBo GöranssonJonas B. Karlsson
    • H04B17/00
    • H04B17/24H04B17/21
    • A device system, computer medium and method for calibrating at least one impairment of a signal transmitted from a transmitting unit to a receiving unit, the method including receiving at the receiving unit at least two signals transmitted from the transmitting unit, estimating at the receiving unit, based on the received at least two signals, at least one parameter associated with transmit chain links between the transmitting unit and corresponding antennas of the transmitting unit, collecting the at least one parameter in a measurement report at the receiving unit, and transmitting the measurement report from the receiving unit for correcting the at least one impairment based on the at least one parameter.
    • 一种用于校准从发送单元发送到接收单元的信号的至少一个损害的设备系统,计算机介质和方法,所述方法包括在接收单元处接收从发送单元发送的至少两个信号,在接收单元处估计 基于所接收的至少两个信号,与所述发送单元与所述发送单元的相应天线之间的发送链路链路相关联的至少一个参数,在所述接收单元处收集测量报告中的所述至少一个参数,以及发送所述测量 从所述接收单元报告基于所述至少一个参数来校正所述至少一个损伤。
    • 47. 发明授权
    • Using covariance matrices for link selection in MIMO communication system
    • 在MIMO通信系统中使用协方差矩阵进行链路选择
    • US08270516B2
    • 2012-09-18
    • US12306132
    • 2006-10-04
    • David AstelyBo GöranssonPer Skillermark
    • David AstelyBo GöranssonPer Skillermark
    • H04B7/02
    • H04B7/0626H04B7/043H04B7/0617H04B7/0684H04L1/20
    • A method of selecting at least one communication link in a wireless communication network is proposed, comprising the steps of transmitting from at least one transmitting node in the network a pilot signal from each of at least two transmitter antennas of the transmitting node, receiving the pilot signals from the at least two transmitter antennas in a receiving terminal, estimating, in the terminal, a covariance matrix of the channel, based on the pilot signals received, determining the pathloss for each antenna based on the covariance matrix, selecting one of at least two possible links for the communication between the terminal and the transmitting nodes. The terminal is enabled to measure on each transmitter antenna individually, which provides a better tool for link selection and cell selection.
    • 提出了一种在无线通信网络中选择至少一个通信链路的方法,包括以下步骤:从网络中的至少一个发射节点发送来自发射节点的至少两个发射机天线中的每一个的导频信号,接收导频 来自接收终端中的至少两个发射机天线的信号,基于所接收的导频信号在终端中估计信道的协方差矩阵,基于协方差矩阵确定每个天线的路径损耗,至少选择 用于终端和发射节点之间的通信的两个可能的链路。 终端可以单独测量每个发射机天线,为链路选择和小区选择提供了更好的工具。
    • 50. 发明授权
    • Method and apparatus for selecting a subset of modeled impairment correlation terms for use in received signal processing
    • 用于选择用于接收信号处理的建模的损伤相关项子集的方法和装置
    • US07751511B2
    • 2010-07-06
    • US11550901
    • 2006-10-19
    • Andres ReialKarin EngdahlBo Göransson
    • Andres ReialKarin EngdahlBo Göransson
    • H03D1/04H03D1/06H03K5/01H03K6/04H04B1/10H04L1/00H04L25/08
    • H04B1/712H04B2201/709727H04L25/03343H04L2025/03426
    • A subset of modeled impairment correlation terms are selected for use in received signal processing. According to one embodiment, a subset of modeled impairment correlation terms is selected and a composite impairment correlation term is determined based on the subset of modeled impairment correlation terms. The composite impairment correlation term may be determined by scaling the modeled impairment correlation terms included in the subset by respective model fitting parameters. The scaled modeled impairment correlation terms are then combined to form the composite impairment correlation term. The subset of modeled impairment correlation terms may be selected based on their respective model fitting parameters. In one embodiment, the modeled impairment terms having a model fitting parameter that satisfy a threshold are included in the subset while those that do not are excluded. The composite impairment correlation term may be used for received signal processing, e.g., demodulation or signal-to-interference estimation.
    • 选择模型损害相关项的子集用于接收信号处理。 根据一个实施例,选择模型化损害相关项的子集,并且基于建模的损害相关项的子集来确定复合损害相关项。 复合损害相关项可以通过用相应的模型拟合参数缩放包括在子集中的建模损伤相关项来确定。 然后将缩放的建模的损伤相关项组合以形成复合损害相关项。 可以基于它们各自的模型拟合参数来选择建模的损伤相关项的子集。 在一个实施例中,具有满足阈值的模型拟合参数的建模的损伤项包括在子集中,而不被排除。 复合损害相关项可以用于接收信号处理,例如解调或信号对干扰估计。