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：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。

公开(公告)号：US08494467B2

公开(公告)日：2013-07-23

申请号：US13180791

申请日：2011-07-12

申请人： Tero Henttonen ,  Timo Roman ,  Chris Callender ,  Anders Ostergaard Nielsen ,  Kaj Jansen

发明人： Tero Henttonen ,  Timo Roman ,  Chris Callender ,  Anders Ostergaard Nielsen ,  Kaj Jansen

IPC分类号： H04B17/02

CPC分类号： H04W52/52

摘要： The invention teaches a solution, for example, for Long Term Evolution (LTE) networks. The solution comprises determining a measurement pattern for at least one automatic gain control tracking loop when resource restrictions have been configured for a user equipment, the resource restrictions comprising at least one measurement restriction pattern, wherein each automatic gain control tracking loop is associated with at least one measurement restriction pattern; and performing automatic gain control measurements according to the measurement patterns of the at least one automatic gain control tracking loop.

摘要翻译： 本发明教导了例如长期演进（LTE）网络的解决方案。 该解决方案包括当为用户设备配置资源限制时确定至少一个自动增益控制跟踪环路的测量模式，该资源限制包括至少一个测量限制模式，其中每个自动增益控制跟踪环路至少与 一种测量限制模式; 以及根据所述至少一个自动增益控制跟踪环路的测量模式执行自动增益控制测量。

公开(公告)号：US20130077707A1

公开(公告)日：2013-03-28

申请号：US13246326

申请日：2011-09-27

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

CPC分类号： H04B7/024 ,  H04B7/0486 ,  H04B7/0626 ,  H04L5/0035 ,  H04L5/0091

摘要： A method, apparatus and computer program product are provided for reporting low rank feedback information for each transmission point up to a maximum rank per transmission point. In this regard, a method includes determining a transmission rank and a precoding matrix for each of at least two transmission points of a plurality of transmission points. A method also includes determining a joint transmission rank based on at least two of the plurality of transmission points. A method also includes selecting a joint transmission precoding matrix based on the determined precoding matrix for each of the at least two transmission points and the determined joint transmission rank. The method further includes causing channel state information “CSI” to be transmitted to an access point, wherein the CSI describes the selected joint transmission precoding matrix.

摘要翻译： 提供了一种方法，装置和计算机程序产品，用于报告每个传输点的最低等级的每个传输点的低秩反馈信息。 在这方面，一种方法包括确定多个传输点中的至少两个传输点中的每一个的传输秩和预编码矩阵。 一种方法还包括基于多个传输点中的至少两个确定联合传输等级。 一种方法还包括基于为所述至少两个传输点中的每一个确定的预编码矩阵和所确定的联合传输等级来选择联合传输预编码矩阵。 该方法还包括使信道状态信息CSI被发送到接入点，其中CSI描述所选择的联合传输预编码矩阵。

公开(公告)号：US20130058424A1

公开(公告)日：2013-03-07

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： H04B7/06

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：US20120113794A1

公开(公告)日：2012-05-10

申请号：US13147352

申请日：2010-01-28

申请人： Timo Roman ,  Cássio Ribeiro ,  Tommi Koivisto ,  Lars Lindh

发明人： Timo Roman ,  Cássio Ribeiro ,  Tommi Koivisto ,  Lars Lindh

IPC分类号： H04J1/12 ,  H04W24/00

CPC分类号： H04B7/0452 ,  H04W72/1289

摘要： Systems and methods for providing an efficient mechanism for transmitting interference vectors to communications terminals, such as user equipments (UEs), in an over the air radio telecommunications network with spatially multiplexed multiple user multiple input multiple output (MU-MIMO) capability. A new pre-coding information downlink channel is defined. Messages containing semi-persistent interference vector information for MU-MIMO user equipment are defined and transmitted over the new channel in a manner that allows infrequent transmission and efficient use of resources. Using the interference vectors and applying inter-user interference adaptation to received messages, the UEs may receive spatially multiplexed MIMO transmissions and actively remove inter-user interference after reception of the messages. Compression of the pre-coding vector information transmitted over the pre-coding information channel may result in additional increases in efficiency in the system.

摘要翻译： 用于提供用于通过空间多路复用多用户多输入多输出（MU-MIMO）能力在空中无线电电信网络中向诸如用户设备（UE）的通信终端发送干扰矢量的有效机制的系统和方法。 定义新的预编码信息下行链路信道。 包含用于MU-MIMO用户设备的半持续干扰矢量信息的消息通过新信道以允许频繁传输和有效利用资源的方式被定义和传输。 使用干扰向量并对接收的消息应用用户间干扰适应，UE可以接收空间复用的MIMO传输，并且在接收到消息之后主动消除用户间干扰。 通过预编码信息信道传送的预编码矢量信息的压缩可能导致系统效率的额外增加。

公开(公告)号：US07099377B2

公开(公告)日：2006-08-29

申请号：US10116760

申请日：2002-04-03

申请人： Friedbert Berens ,  Timo Roman

发明人： Friedbert Berens ,  Timo Roman

IPC分类号： H04B1/69

CPC分类号： H04B1/7105 ,  H04B1/7107

摘要： The method of interference cancellation in a CDMA wireless communication system comprises receiving an incident digital signal containing a user signal transmitted on a CDMA user physical channel and an interfering signal, projecting said incident digital signal onto a projection space orthogonal to the space containing said interfering signal, filtering said projected signal with a filter matched to the CDMA user physical channel for detecting the data contained in said user signal.

公开(公告)号：US08599960B2

公开(公告)日：2013-12-03

申请号：US13246326

申请日：2011-09-27

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

CPC分类号： H04B7/024 ,  H04B7/0486 ,  H04B7/0626 ,  H04L5/0035 ,  H04L5/0091

摘要： A method, apparatus and computer program product are provided for reporting low rank feedback information for each transmission point up to a maximum rank per transmission point. In this regard, a method includes determining a transmission rank and a precoding matrix for each of at least two transmission points of a plurality of transmission points. A method also includes determining a joint transmission rank based on at least two of the plurality of transmission points. A method also includes selecting a joint transmission precoding matrix based on the determined precoding matrix for each of the at least two transmission points and the determined joint transmission rank. The method further includes causing channel state information “CSI” to be transmitted to an access point, wherein the CSI describes the selected joint transmission precoding matrix.

摘要翻译： 提供了一种方法，装置和计算机程序产品，用于报告每个传输点的最低等级的每个传输点的低秩反馈信息。 在这方面，一种方法包括确定多个传输点中的至少两个传输点中的每一个的传输秩和预编码矩阵。 一种方法还包括基于多个传输点中的至少两个确定联合传输等级。 一种方法还包括基于为所述至少两个传输点中的每一个确定的预编码矩阵和所确定的联合传输等级来选择联合传输预编码矩阵。 该方法还包括使信道状态信息“CSI”被发送到接入点，其中CSI描述所选择的联合传输预编码矩阵。

公开(公告)号：US20130244676A1

公开(公告)日：2013-09-19

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： H04W72/04

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：US08423037B2

公开(公告)日：2013-04-16

申请号：US12652937

申请日：2010-01-06

申请人： Kari Pajukoski ,  Kari Hooli ,  Esa Tiirola ,  Tommi Koivisto ,  Timo Roman

发明人： Kari Pajukoski ,  Kari Hooli ,  Esa Tiirola ,  Tommi Koivisto ,  Timo Roman

IPC分类号： H04W72/00

CPC分类号： H04B7/0689 ,  H04B7/0404 ,  H04B7/0434 ,  H04B7/0465 ,  H04B7/0602 ,  H04B7/0608 ,  H04B7/0617 ,  H04B7/0671 ,  H04B7/0691

摘要： In accordance with the exemplary embodiments of the invention there is at least a method, apparatus, and a computer program to perform operations including receiving information descriptive of a type of radio access which a user equipment is acting on, and in response to receiving the information descriptive of a particular type of radio access, transmitting from a multiple transmit antenna user equipment so that the transmission appears, at a receiver, to have been made by a single antenna user equipment, or by a user equipment that supports antenna switching/selection.

摘要翻译： 根据本发明的示例性实施例，存在至少一种方法，装置和计算机程序，用于执行操作，包括接收描述用户设备正在作用的无线电接入的类型的信息，并且响应于接收到该信息 描述特定类型的无线电接入，从多个发射天线用户设备发射，使得传输在接收机处出现，由单一天线用户设备或支持天线切换/选择的用户设备进行。