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    • 51. 发明申请
    • SRS Transmission in PUSCH
    • PUSCH中的SRS传输
    • US20120294254A1
    • 2012-11-22
    • US13522106
    • 2010-05-12
    • Ali BehravanDavid AstelyGeorge Jöngren
    • Ali BehravanDavid AstelyGeorge Jöngren
    • H04W72/04
    • H04L5/0048H04L5/0023H04L5/0094
    • The present invention uses user-specific resources, as allocated on the uplink, for conveying one or more antenna-specific sounding reference signals (SRSs). This technique advantageously permits, for example, a user equipment (UE) configured for uplink Multiple-Input-Multiple-Output (MIMO) operation to send antenna-specific SRSs within the granted resources allocated to the UE via one or more scheduled uplink grants. That is, within the granted resources allocated by a given uplink grant, a UE uses at least a portion of those resources for sending antenna-specific SRSs, rather than for sending uplink data (user traffic). Thus, in one or more embodiments, the present invention comprises a method at a UE of transmitting antenna-specific SRSs for two or more uplink transmit antennas. The method comprises transmitting an antenna-specific sounding reference signal for at least one of the uplink transmit antennas within a granted resource allocated to the user equipment for a scheduled uplink data transmission.
    • 本发明使用在上行链路上分配的用户特定资源来传送一个或多个天线特定的探测参考信号(SRS)。 该技术有利地允许例如配置用于上行链路多输入多输出(MIMO)操作的用户设备(UE),以经由一个或多个调度的上行链路授权在分配给UE的授权资源内发送天线专用SRS。 也就是说,在由给定的上行链路授权分配的授权资源内,UE使用这些资源的至少一部分来发送天线特定的SRS,而不是用于发送上行链路数据(用户业务)。 因此,在一个或多个实施例中,本发明包括在UE处发射用于两个或更多个上行链路发射天线的天线专用SRS的方法。 所述方法包括在分配给所述用户设备的授权资源中为所调度的上行链路数据传输发送用于所述上行链路发射天线中的至少一个的天线专用探测参考信号。
    • 53. 发明申请
    • INCREASING A SECTORIZATION ORDER IN A FIRST SECTOR OF AN ANTENNA ARRAY
    • 在天线阵列的第一个部门增加一个部门订单
    • US20100120441A1
    • 2010-05-13
    • US12532593
    • 2008-03-11
    • Lei WanGeorge JöngrenDavid Astely
    • Lei WanGeorge JöngrenDavid Astely
    • H04W40/00
    • H04W16/24H01Q1/246H04B7/0617
    • A mechanism for increasing a sectorization order in a first sector of an antenna array. The object is achieved by a method in a network node. The network node and antenna array are comprised in a wireless communication system. The antenna array is deployed with a first sectorization. The network node comprises a first number of signal connections. Each signal connection is adapted to transmit and receive signals. The method comprises the step of splitting the first number of connections into a number of groups. Each one of the respective connection groups corresponds to one respective virtual sector resulting in a number of virtual sectors. The method further comprises the step of mapping the number of virtual sectors to the first sector, such that the first sector is split into the number of virtual sectors.
    • 一种用于增加天线阵列的第一扇区中的扇区化顺序的机制。 该对象通过网络节点中的方法来实现。 网络节点和天线阵列包括在无线通信系统中。 天线阵列以第一扇区化部署。 网络节点包括第一数量的信号连接。 每个信号连接适于发送和接收信号。 该方法包括将第一数目的连接分成多个组的步骤。 各个连接组中的每一个对应于一个相应的虚拟扇区,导致多个虚拟扇区。 该方法还包括将虚拟扇区的数量映射到第一扇区的步骤,使得第一扇区被分割成虚拟扇区的数量。
    • 54. 发明授权
    • Methods and arrangements in a wireless communication system using multi-codeword transmission and ACK/NACK compression
    • 使用多码字传输和ACK / NACK压缩的无线通信系统中的方法和布置
    • US08705575B2
    • 2014-04-22
    • US12999863
    • 2009-04-14
    • George JöngrenDavid Astely
    • George JöngrenDavid Astely
    • H04L27/28
    • H04L1/1822H04L1/1635H04L1/1812H04L1/1887
    • The present invention relates to methods and arrangements in a wireless communication system that enable the use of multi-codeword transmission and ACK/NACK compression with low performance loss. It also enables the use of advanced receivers of reasonable complexity. This is achieved by a solution based on the even distribution of the symbols of separately coded blocks of information bits over the available physical resources before transmission. Each physical resource will thus carry a mixture of symbols from all blocks of information bits, which results in a more similar channel quality for the blocks of information bits. A compressed ACK/NACK message corresponding to the blocks of information bits will thus be more accurate and the performance loss due to the ACK/NACK compression can be reduced.
    • 本发明涉及无线通信系统中的方法和装置,其能够使用多码字传输和具有低性能损失的ACK / NACK压缩。 它还可以使用合理复杂的高级接收机。 这是通过基于在传输之前的可用物理资源上的分开编码的信息比特块的符号的均匀分布的解决方案来实现的。 因此,每个物理资源将携带来自所有信息比特块的符号的混合,这导致信息比特块的更相似的信道质量。 因此,与信息比特块相对应的压缩ACK / NACK消息将更加准确,并且可以减少由于ACK / NACK压缩引起的性能损失。
    • 55. 发明申请
    • Method for Transmitting of Reference Signals and Determination of Precoding Matrices for Multi-Antenna Transmission
    • 传输参考信号的方法和多天线传输预编码矩阵的确定
    • US20110205930A1
    • 2011-08-25
    • US13127176
    • 2009-05-14
    • Muhammad Imadur RahmanGeorge JöngrenDavid Astely
    • Muhammad Imadur RahmanGeorge JöngrenDavid Astely
    • H04W4/00H04W24/08
    • H04B7/0639H04B7/0417H04B7/0469H04B7/0617H04B7/0691H04L5/0023H04L5/005H04L25/03343H04L2025/03426H04L2025/03802
    • Techniques are disclosed for determining transmitter antenna weights at a base station (12) having more available transmit antennas (150) than the available number of reference signals. An exemplary method includes transmitting (530) a plurality of reference signals and receiving (540) channel feedback data derived by a mobile terminal (14) from the reference signals. The reference signals are each assigned to a corresponding one of two or more antenna groupings, wherein at least a first one of the antenna groupings comprises two or more transmit antennas (150), and transmitted using at least one transmit antenna (150) from the corresponding antenna grouping. The method further includes determining (550) a first beam-forming vector for the first one of the antenna grouping and mapping (570) the one or more data streams to the transmit antennas (150) according to a final precoding matrix that depends on the channel feedback data and the first beam-forming vector, to obtain a weighted transmit signal for each of the antennas (150).
    • 公开了用于在具有比可用数量的参考信号更多的可用发射天线(150)的基站(12)处确定发射机天线权重的技术。 一种示例性方法包括:发射(530)多个参考信号,并且从参考信号接收(540)由移动终端(14)导出的信道反馈数据。 每个参考信号被分配给两个或多个天线分组中的相应一个,其中天线分组中的至少第一天线分组包括两个或多个发射天线(150),并且使用至少一个发射天线(150)从 相应的天线分组。 该方法还包括确定(550)天线组合中第一个的第一波束形成向量,并根据最终预编码矩阵将该一个或多个数据流映射(570)到发射天线(150) 信道反馈数据和第一波束成形矢量,以获得每个天线(150)的加权发射信号。
    • 60. 发明申请
    • Initializing Reference Signal Generation in Wireless Networks
    • 初始化无线网络中的参考信号生成
    • US20140247775A1
    • 2014-09-04
    • US13882632
    • 2012-05-11
    • Mattias FrenneJung-Fu ChengGeorge JöngrenHavish KoorapatyDaniel Larsson
    • Mattias FrenneJung-Fu ChengGeorge JöngrenHavish KoorapatyDaniel Larsson
    • H04W72/04
    • H04W72/042H04L5/0048H04L25/0226
    • A transmitting node uses different reference signal sequences for different types of enhanced control channels. An example method begins with generating (1410) a first reference signal sequence, from a first initialization value, and generating (1420) a second reference signal sequence, from a second initialization value. These reference signal sequences are associated with two corresponding enhanced control transmissions. A first enhanced control channel and reference symbols taken from the first reference signal sequence are transmitted (1430), using first time-frequency resources and a first set of transmission points or a first set of antenna ports or both, and a second enhanced control channel and reference symbols taken from the second reference signal sequence are also transmitted (1440), using a differing second set of transmission points and/or a differing second set of antenna ports and/or a differing second set of time-frequency resources, in the same subframe or group of subframes.
    • 发射节点对于不同类型的增强控制信道使用不同的参考信号序列。 一个示例性方法开始于从第一初始化值产生(1410)第一参考信号序列,并从第二初始化值生成(1420)第二参考信号序列。 这些参考信号序列与两个对应的增强控制传输相关联。 使用第一时间频率资源和第一组传输点或第一组天线端口或两者,发送从第一参考信号序列获取的第一增强控制信道和参考符号(1430),以及第二增强控制信道 并且还使用不同的第二组传输点和/或不同的第二组天线端口和/或不同的第二组时间 - 频率资源来传输从第二参考信号序列获取的参考符号(1440),在 相同子帧或子帧组。