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11. 发明授权

US08825069B2 Methods, apparatus and computer programs for configuring user equipment 有权
标题翻译：用于配置用户设备的方法，设备和计算机程序
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。

12. 发明申请

US20140112195A1 FEEDBACK DESIGN OF HIERARCHICAL COORDINATED MULTIPOINT TRANSMISSION 有权
标题翻译：分层协调多点传输的反馈设计
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。

13. 发明授权

US08625450B2 Channel state information feedback for enhanced downlink multiple input—multiple output operation 有权
标题翻译：信道状态信息反馈，用于增强下行链路多输入多输出操作
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。

14. 发明申请

US20130077707A1 METHOD AND APPARATUS FOR MULITPLE INPUT MULTIPLE OUTPUT DISTRIBUTED ANTENNA ARRAYS 有权
标题翻译：多输入输出多输出天线阵列的方法与装置
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。

15. 发明申请

US20130058424A1 Codebook Design and Structure for Multi-Granular Feedback 有权
标题翻译：多粒度反馈的码本设计和结构
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。

16. 发明申请

US20120188962A1 Apparatus and Method for Non-Codebook Based Precoding 有权
标题翻译：非码本预编码的装置和方法
公开(公告)号：US20120188962A1
公开(公告)日：2012-07-26
申请号：US13389668
申请日：2009-08-10
申请人： Chun Yan Gao , Erlin Zeng , Xiang Guang Che , Shuang Tan , Kari Pekka Pajukoski , Kari Juhani Hooli , Peter Skov , Tommi Koivisto
发明人： Chun Yan Gao , Erlin Zeng , Xiang Guang Che , Shuang Tan , Kari Pekka Pajukoski , Kari Juhani Hooli , Peter Skov , Tommi Koivisto
IPC分类号： H04W72/04 , H04W4/00
CPC分类号： H04B7/0621 , H04B7/0434 , H04B7/0617 , H04B7/0636
摘要： An apparatus and a method are provided. The provided solution includes a controller configured to determine a transmission mode for user equipment, the transmission mode including non-codebook precoding with fixed precoding granularity; and to control a transceiver to transmit information on the selected transmission mode to the user equipment.
摘要翻译：提供了一种装置和方法。所提供的解决方案包括：用于确定用户设备的传输模式的控制器，所述传输模式包括具有固定预编码粒度的非码本预编码; 并且控制收发器以所选择的传输模式向用户设备发送信息。

17. 发明申请

US20120113794A1 MULTIPLE USER MIMO INTERFERENCE SUPPRESSION COMMUNICATIONS SYSTEM AND METHODS 有权
标题翻译：多用户MIMO干扰抑制通信系统和方法
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。

18. 发明申请

US20100248708A1 Method, Apparatus and Computer Program Product for Reducing Outage Probability for Mobile Devices 有权
标题翻译：用于减少移动设备中断概率的方法，设备和计算机程序产品
公开(公告)号：US20100248708A1
公开(公告)日：2010-09-30
申请号：US12739931
申请日：2008-10-23
申请人： Tommi Koivisto , Huang Leping
发明人： Tommi Koivisto , Huang Leping
IPC分类号： H04M3/00
CPC分类号： H04W48/20 , H04L1/0003 , H04L1/0009 , H04L2001/0093 , H04W4/02 , H04W36/08
摘要： An apparatus for enabling dual mode communication may include a processor. The processor may be configured to receive (102), via a source cell, an indication of service availability for a particular service in a target cell, determine (104) whether a current transmission format of the target cell is indicative of the particular service being available at a region proximate to an edge of the target cell, switch to communication with the target cell from communication with the source cell in response to a determination that the current transmission format of the target cell indicates that the particular service is available’ at the region proximate to the edge of the target cell, and trigger (110, 112, 130) the target cell to make an adjustment (120, 132) to the transmission format to cover cell edge area in response to a determination that the current transmission format of the target cell indicates that the particular service is not available at the region proximate to the edge of the target cell. A corresponding method and computer program product are also provided.
摘要翻译：用于启用双模式通信的装置可以包括处理器。处理器可以被配置为经由源小区接收（102）对目标小区中的特定服务的服务可用性的指示，确定（104）目标小区的当前传输格式是否表示特定服务是在目标小区的边缘附近的区域可用，响应于当前目标小区的当前传输格式指示特定服务可用的确定，切换到与目标小区的通信，与源小区的通信区域，以及触发器（110,112,130）所述目标小区以响应于当前传输格式的确定来对所述传输格式进行调整（120,132）以覆盖小区边缘区域指示特定服务在靠近目标小区边缘的区域不可用。还提供了相应的方法和计算机程序产品。

19. 发明授权

US10044489B2 Enhanced inter-network access node scheduling coordination and signaling support for advanced receiver algorithms 有权
公开(公告)号：US10044489B2
公开(公告)日：2018-08-07
申请号：US13278310
申请日：2011-10-21
申请人： Kari Pekka Pajukoski , Esa Tapani Tiirola , Kari Juhani Hooli , Tommi Koivisto , Marko Lampinen , Lars Lindh
发明人： Kari Pekka Pajukoski , Esa Tapani Tiirola , Kari Juhani Hooli , Tommi Koivisto , Marko Lampinen , Lars Lindh
IPC分类号： H04W72/04 , H04L5/00 , H04J11/00 , H04B7/024 , H04W72/12
摘要： A method includes operating a network access node to determine, in cooperation with at least one other network access node, a coordinated scheduling granularity having a plurality of physical resource blocks; and signaling an indication of the determined coordinated scheduling granularity to at least one mobile device served by the network access node for use in enhancing estimation at a receiver of the mobile device, such as when estimating an interference covariance matrix. Apparatus for performing the method is also disclosed, as are mobile device methods and apparatus for receiving and using the signaling.

20. 发明授权

US09172438B2 Devices and methods related to controlling UE assumption of interference 有权
标题翻译：与控制UE假设干扰相关的设备和方法
公开(公告)号：US09172438B2
公开(公告)日：2015-10-27
申请号：US13292205
申请日：2011-11-09
申请人： Tommi Koivisto , Helka-Liina Maattanen , Mihai Enescu , Marko Lampinen
发明人： Tommi Koivisto , Helka-Liina Maattanen , Mihai Enescu , Marko Lampinen
IPC分类号： H04J1/16 , H04B7/02 , H04B7/06 , H04L12/28
CPC分类号： H04W24/08 , H04B7/024 , H04B7/0617 , H04B7/0632 , H04L5/0044
摘要： To control UE assumption of interference there is a controller module to control a plurality of transmission points, each constituted by a set of at least one transmit antenna, to transmit data to another device in a coordinated transmission from at least a subset of the plurality of transmission points. The controller module is configured to allocate, to each resource linked to the subset of the plurality of transmission points, an interference contribution parameter that is indicative of an expected interference contribution originating from said transmission point, and to inform said another device of those resources to which the subset of the plurality of transmission points is linked, together with the respective interference contribution parameter allocated to each resource. Another device reports feedback based on signals which are scaled with the respective interference contribution parameter.
摘要翻译：为了控制UE对干扰的假设，存在一个控制器模块，用于控制多个传输点，每个传输点由一组至少一个发射天线构成，以便从多个发射天线的至少一个子集以协调的传输方式将数据传输到另一个设备传输点。控制器模块被配置为向链接到多个传输点的子集的每个资源分配指示源自所述传输点的预期干扰贡献的干扰贡献参数，并将这些资源通知给另一个设备多个传输点的子集与被分配给每个资源的相应的干扰贡献参数一起被链接。另一个设备基于用相应的干扰贡献参数来缩放的信号来报告反馈。

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