公开(公告)号：US09088322B2

公开(公告)日：2015-07-21

申请号：US12751588

申请日：2010-03-31

申请人： Tommi Koivisto ,  Mihai Enescu ,  Timo Roman ,  Karol Schober

发明人： Tommi Koivisto ,  Mihai Enescu ,  Timo Roman ,  Karol Schober

IPC分类号： H04B7/216 ,  H04L27/28 ,  H04L27/06 ,  H04B7/04 ,  H04B7/06

CPC分类号： H04B7/0482 ,  H04B7/0465 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0639

摘要： A method and apparatus are provided for an apparatus. The apparatus includes at least one memory including computer program code, and at least one processor. The at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to receive an indication of a set of codeword groups to be included in a codebook, and to select a precoding matrix index based on the indicated set of codeword groups in the codebook. The apparatus is also cause to transmit the precoding matrix index to a network node.

摘要翻译： 为装置提供了一种方法和装置。 该装置包括至少一个包括计算机程序代码的存储器和至少一个处理器。 所述至少一个存储器和所述计算机程序代码被配置为与所述至少一个处理器一起使所述设备至少接收要包括在码本中的一组码字组的指示，并且选择预编码矩阵索引 基于码本中指示的码字组集合。 该装置也是将预编码矩阵索引发送到网络节点的原因。

公开(公告)号：US08855026B2

公开(公告)日：2014-10-07

申请号：US13291417

申请日：2011-11-08

申请人： Helka-Liina Maattanen ,  Mihai Enescu ,  Tommi Koivisto

发明人： Helka-Liina Maattanen ,  Mihai Enescu ,  Tommi Koivisto

IPC分类号： H04L12/28 ,  H04L12/18 ,  H04B7/06 ,  H04B7/02 ,  H04J1/16

CPC分类号： H04B7/024 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0689 ,  H04L12/1868 ,  H04L12/189 ,  H04W24/10 ,  H04W72/04

摘要： A network sends to a user equipment UE a reference signal configuration, and from receiving it the UE selects a codeword identifying a cooperative multipoint CoMP transmission scheme. There is a CoMP scheme selection codebook from which the UE selects the codeword corresponding to its recommended CoMP scheme. The UE sends to the network that codeword which identifies the CoMP transmission scheme, along with the CSI feedback characterizing the CoMP transmission scheme. From that codeword which the network receives it determines the UE's assumed CoMP transmission scheme, which the network uses to determine how the CSI feedback, received from the UE, was calculated by the UE (for example, joint transmission, or dynamic point selection with or without muting, or coordinating scheduling/beamforming). The network uses this information for selecting a CoMP transmission scheme for downlink CoMP transmissions to the UE.

摘要翻译： 网络向用户设备UE发送参考信号配置，并且从接收到UE选择标识合作多点CoMP传输方案的码字。 存在CoMP方案选择码本，UE从其中选择与其推荐的CoMP方案对应的码字。 UE向网络发送识别CoMP传输方案的码字以及表征CoMP传输方案的CSI反馈。 从网络接收的该码字确定UE假定的CoMP传输方案，网络用于确定从UE接收到的CSI反馈如何由UE计算（例如，联合传输，或具有或 没有静音或协调调度/波束成形）。 网络使用该信息来选择用于向UE的下行链路CoMP传输的CoMP传输方案。

公开(公告)号：US08743992B2

公开(公告)日：2014-06-03

申请号：US13639094

申请日：2010-04-06

申请人： Mihai Enescu ,  Timo Roman ,  Tommi Koivisto ,  Timo Lunttila ,  Shuang Tan ,  Helka-Liina Määttänen ,  Kari Pietikäinen

发明人： Mihai Enescu ,  Timo Roman ,  Tommi Koivisto ,  Timo Lunttila ,  Shuang Tan ,  Helka-Liina Määttänen ,  Kari Pietikäinen

IPC分类号： H04L1/02 ,  H04B7/02

CPC分类号： H04L25/03923 ,  H04B7/0465 ,  H04B7/0469 ,  H04B7/0486 ,  H04L25/03936

摘要： A first precoding matrix W1 is selected from a first codebook comprising sets of rank specific precoding matrices. The first codebook is characterized by there being fewer precoding matrices associated with higher ranks than associated with lower ranks, and characterized by precoding matrices associated with ranks above a certain rank all being diagonal matrices. The selected first precoding matrix W1 is used to select a rank-specific second precoding matrix W2 from a second codebook, such that the selected first and second precoding matrices form a joint precoder specific to a desired rank. The second codebook is characterized by differently sized precoding matrices associated with each of N total ranks, in which N is an integer greater than one. Information on the joint precoder is reported to a network node over an uplink transmission channel.

摘要翻译： 从包括秩特定预编码矩阵的集合的第一码本中选择第一预编码矩阵W1。 第一码本的特征在于，与较低等级相关联的较高等级的预编码矩阵较少，并且其特征在于与一定等级上的等级相关联的预编码矩阵全部为对角矩阵。 所选择的第一预编码矩阵W1用于从第二码本中选择秩特定的第二预编码矩阵W2，使得所选择的第一和第二预编码矩阵形成特定于期望等级的联合预编码器。 第二码本的特征在于与N个总等级中的每一个相关联的不同大小的预编码矩阵，其中N是大于1的整数。 关于联合预编码器的信息通过上行链路传输信道报告给网络节点。

公开(公告)号：US20140146719A1

公开(公告)日：2014-05-29

申请号：US14131346

申请日：2011-07-08

申请人： Chunyan Gao ,  Erlin Zeng ,  Haiming Wang ,  Jing Han ,  Tommi Koivisto

发明人： Chunyan Gao ,  Erlin Zeng ,  Haiming Wang ,  Jing Han ,  Tommi Koivisto

IPC分类号： H04J3/16

CPC分类号： H04J3/1694 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/082

摘要： Apparatuses, methods and computer program products are proposed, by which resource elements in an uplink transmission of a user equipment are determined, on which interference may be caused and which are to be muted in the uplink transmission, and wherein the user equipment is configured to mute resource elements based on the determined resource elements.

摘要翻译： 提出了一种设备，方法和计算机程序产品，通过该装置，方法和计算机程序产品，确定用户设备的上行链路传输中的资源元素，可能引起干扰并在上行链路传输中被忽略，并且其中用户设备被配置为 基于确定的资源元素静音资源元素。

公开(公告)号：US20130010880A1

公开(公告)日：2013-01-10

申请号：US13176169

申请日：2011-07-05

申请人： Tommi Koivisto ,  Mihai Enescu ,  Timo Roman ,  Karol Schober

发明人： Tommi Koivisto ,  Mihai Enescu ,  Timo Roman ,  Karol Schober

IPC分类号： H04L27/00 ,  H03D1/00

CPC分类号： H04B7/065 ,  H04B7/024 ,  H04B7/0465 ,  H04B7/0469 ,  H04B7/0639 ,  H04B7/0665 ,  H04B7/0691 ,  H04B7/10

摘要： There is provided a mechanism providing a flexible feedback framework operating in different scenarios, such as heterogeneous network deployments. Antenna information are sent from a scheduler element to a UE, the antenna information including information indicating a grouping of one or more antenna in closely spaced antenna groups of one or more transmit points. The UE selects at least one of precoding codewords and amplitude weight parameters for each closely spaced antenna group, and determines information related to a sub-band precoder and a transmit point related combiner. The processing results are indicated to the scheduler by means of sending indices related to a wide-band long-term precoder and a sub-band short-term precoder. The scheduler processes these results for determining a joint precoder.

摘要翻译： 提供了一种提供在不同场景中操作的灵活反馈框架的机制，例如异构网络部署。 天线信息从调度器元件发送到UE，天线信息包括指示一个或多个发射点的紧密间隔的天线组中的一个或多个天线的分组的信息。 UE为每个紧密间隔的天线组选择预编码码字和幅度权重参数中的至少一个，并且确定与子带预编码器和发射点相关组合器相关的信息。 处理结果通过发送与宽带长期预编码器和子带短期预编码器相关的索引指示给调度器。 调度器处理这些结果以确定联合预编码器。

公开(公告)号：US20110243107A1

公开(公告)日：2011-10-06

申请号：US13128647

申请日：2008-11-12

申请人： Tommi Koivisto ,  Jie Zhen Lin ,  Peter Skov ,  Chun Hai Yao

发明人： Tommi Koivisto ,  Jie Zhen Lin ,  Peter Skov ,  Chun Hai Yao

IPC分类号： H04W16/10 ,  H04W72/04

CPC分类号： H04W72/1215 ,  H04W72/1278 ,  H04W92/20

摘要： According to one general aspect, an apparatus may include a processor. In various embodiments, the processor may be configured to select either an uplink sub-frame or a special sub-frame to employ for base station-to-base station (B2B) communication in some embodiments, the processor may be configured to cause at least one user equipment (UE), associated with the apparatus, to either refrain from transmitting or substantially receiving during the selected sub-frame In various embodiments, the processor may be configured to transmit data, from the apparatus to a receiving BS, during at least a portion of the selected sub-frame.

摘要翻译： 根据一个一般方面，一种装置可以包括处理器。 在各种实施例中，处理器可以被配置为在一些实施例中选择上行链路子帧或特殊子帧以用于基站到基站（B2B）通信，所述处理器可以被配置为至少引起 与所述设备相关联的一个用户设备（UE）在所选择的子帧期间避免发送或基本上接收。在各种实施例中，处理器可以被配置为在至少在该设备期间从设备向接收BS发送数据 所选子帧的一部分。

公开(公告)号：US09491689B2

公开(公告)日：2016-11-08

申请号：US12996375

申请日：2009-06-02

申请人： Tommi Koivisto ,  Vinh Van Phan ,  Frank Frederiksen ,  Klaus Pedersen

发明人： Tommi Koivisto ,  Vinh Van Phan ,  Frank Frederiksen ,  Klaus Pedersen

IPC分类号： H04B7/00 ,  H04W48/16 ,  H04J11/00 ,  H04W88/06

CPC分类号： H04W48/16 ,  H04J11/0069 ,  H04W88/06

摘要： Structure of a multi-carrier flexible spectrum wireless cell is determined from received synchronization or broadcast channels of detected individual carriers. The determined structure is used to select an intended carrier for initial access or cell reselection to the flexible spectrum wireless cell. The structure may have carriers compatible with an earlier version (LTE/Release 8) of a communication standard and with a later version (LTE-A/Release 9). The received synchronization channels can inform of: relative positions of the individual carriers in a spectrum band of the multi-carrier structure; relative timing alignments of the received synchronization channels; contents of the received synchronization channels; and/or layer 1 cell-carrier identifiers. The synchronization channels may have a different structure as between the earlier and later versions, and the different structure is used to select the carrier that is compatible with the user equipment making the selection.

摘要翻译： 从接收到的检测到的个体载波的同步或广播信道确定多载波灵活频谱无线小区的结构。 所确定的结构用于选择用于初始接入或小区重选的目的载波到灵活频谱无线小区。 该结构可以具有与通信标准的较早版本（LTE /版本8）和更高版本（LTE-A /版本9）兼容的载波。 所接收的同步信道可以通知：多载波结构的频谱带中各个载波的相对位置; 所接收的同步信道的相对定时对准; 收到的同步信道的内容; 和/或第1层小区载体标识符。 同步信道可以具有与较早版本和较新版本之间不同的结构，并且不同的结构用于选择与进行选择的用户设备兼容的载波。

公开(公告)号：US08825069B2

公开(公告)日：2014-09-02

申请号：US13614052

申请日：2012-09-13

申请人： Tommi Koivisto ,  Timo Roman

发明人： Tommi Koivisto ,  Timo Roman

IPC分类号： H04W72/00

CPC分类号： H04L5/0048 ,  H04L5/0023 ,  H04L5/0035 ,  H04L25/0224

摘要： Examples are described relating to methods, apparatus and computer programs for configuring a user equipment in a cellular wireless network. Certain exemplary methods involve receiving (440), at the user equipment (430), control information regarding one or more of a plurality of channel-state information (CSI) reference signals. The plurality of CSI reference signals are receivable by the user equipment (430) from one or more of a plurality of antenna ports that form part of the cellular wireless network, the plurality of CSI reference signal being associated with corresponding antenna ports. The control information is for use in configuration of the user equipment (430) and is received over a radio communications downlink from a node (410) in the cellular wireless network. If estimation of one or more radio communication channels at the user equipment (430) is configured (450) based on the received control information, improvements in demodulation and CSI feedback are achieved.

摘要翻译： 描述了关于在蜂窝无线网络中配置用户设备的方法，装置和计算机程序的示例。 某些示例性方法涉及在用户设备（430）处接收（440）关于多个信道状态信息（CSI）参考信号中的一个或多个的控制信息。 多个CSI参考信号可由用户设备（430）从形成蜂窝无线网络的一部分的多个天线端口中的一个或多个接收，多个CSI参考信号与对应的天线端口相关联。 控制信息用于配置用户设备（430），并通过无线通信下行链路从蜂窝无线网络中的节点（410）接收。 如果基于所接收的控制信息来配置用户设备（430）中的一个或多个无线电通信信道的估计（450），则解调和CSI反馈的改进被实现。

公开(公告)号：US20140112195A1

公开(公告)日：2014-04-24

申请号：US14124273

申请日：2011-06-08

申请人： Shuang Tan ,  Tommi Koivisto ,  Helka-Liia Maattanen

发明人： Shuang Tan ,  Tommi Koivisto ,  Helka-Liia Maattanen

IPC分类号： H04W16/18 ,  H04W24/10

CPC分类号： H04W16/18 ,  H04B7/024 ,  H04B7/0632 ,  H04B7/0639 ,  H04W24/10 ,  H04W48/20

摘要： The present invention provides a method, apparatus and a computer program product for feedback design of hierarchical coordinated multipoint transmission. The present invention includes obtaining, at a user equipment, a list including a predetermined number of cells, identifying, at the user equipment, a cooperation set of cells including the cell serving the user equipment, determining, at the user equipment, for each cell included in the list whether the cell belongs to the identified cooperation set of the user equipment, and if the cell belongs to the cooperation set of the user equipment, reporting a first predetermined set of parameters, and if the cell does not belong to the cooperation set of the user equipment, reporting a second predetermined set of parameters.

摘要翻译： 本发明提供了一种用于分层协调多点传输的反馈设计的方法，装置和计算机程序产品。 本发明包括在用户设备处获取包括预定数量的小区的列表，在用户设备处识别包括服务于用户设备的小区的小区的协作集合，在用户设备处确定每个小区 包括在列表中是否该小区属于所识别的用户设备的协作集合，并且如果小区属于用户设备的协作集，则报告第一预定参数集合，并且如果小区不属于协作 设置用户设备，报告第二预定参数集。

公开(公告)号：US08625450B2

公开(公告)日：2014-01-07

申请号：US13080347

申请日：2011-04-05

申请人： Timo Lunttila ,  Tommi Koivisto ,  Timo Roman ,  Mihai Enescu

发明人： Timo Lunttila ,  Tommi Koivisto ,  Timo Roman ,  Mihai Enescu

IPC分类号： H04L12/26 ,  H04W4/00 ,  G06F11/00

CPC分类号： H04B7/0626 ,  H04B7/0632 ,  H04B7/0639

摘要： In accordance with the exemplary embodiments of the invention there is deriving multiple input-multiple output feedback information using a set of precoding matrices associated with at least one precoding codebook, signaling, in a first plurality of resource elements, channel state information associated with a first precoding matrix indicator of the set of precoding matrices jointly with a transmission rank, and signaling separately, in a second plurality of resource elements, channel state information associated with a second precoding matrix indicator of the set of precoding matrices. In addition, there is receiving signaling in a first plurality of resource elements of channel state information associated with a first precoding matrix indicator of a set of precoding matrices jointly with a transmission rank, receiving signaling separately in a second plurality of resource elements of channel state information associated with a second precoding matrix indicator of the set of precoding matrices, and controlling a downlink multiple input-multiple output transmission in accordance with the received signaling.

摘要翻译： 根据本发明的示例性实施例，使用与至少一个预编码码本相关联的一组预编码矩阵导出多个输入多输出反馈信息，在第一多个资源元素中发信号通知与第一 一组预编码矩阵的预编码矩阵指示符与传输秩联合，并且在第二多个资源元素中分别信令与该组预编码矩阵的第二预编码矩阵指示符相关联的信道状态信息。 此外，在与传输秩联合的一组预编码矩阵的第一预编码矩阵指示符的信道状态信息的第一多个资源元素中接收信令，在信道状态的第二多个资源元素中分别接收信令 与所述一组预编码矩阵的第二预编码矩阵指示符相关联的信息，以及根据所接收的信令来控制下行链路多输入多输出传输。