公开(公告)号：US20150117392A1

公开(公告)日：2015-04-30

申请号：US14398873

申请日：2012-05-16

申请人： David Hammarwall ,  Svante Bergman ,  Jonas Fröberg Olsson ,  George Jöngren

发明人： David Hammarwall ,  Svante Bergman ,  Jonas Fröberg Olsson ,  George Jöngren

IPC分类号： H04W72/08 ,  H04L5/00

CPC分类号： H04W72/082 ,  H04B7/024 ,  H04B17/345 ,  H04B17/382 ,  H04J11/0053 ,  H04L1/00 ,  H04L1/0026 ,  H04L1/0077 ,  H04L1/20 ,  H04L5/0048 ,  H04W24/10

摘要： The invention relates to methods and arrangements in a transmitting node for enabling a receiving node to perform measurements on interference caused by transmissions from at least one transmission point controlled by the transmitting node on receptions at the receiving node. The transmitting and receiving nodes are comprised in a wireless communications system. The transmitting node determines an interference measurement resource, IMR, for the receiving node. The receiving node is expected to measure interference on the IMR. The transmitting node then transmits at least one interfering signal on the IMR. The at least one interfering signal is not expected to be decoded or coherently measured upon by any node served by the transmitting node.

摘要翻译： 本发明涉及一种发送节点中的方法和装置，用于使接收节点能够对由接收节点的接收上的由发送节点控制的至少一个发送点的传输引起的干扰执行测量。 发送和接收节点包括在无线通信系统中。 发射节点确定接收节点的干扰测量资源IMR。 接收节点有望测量IMR上的干扰。 发射节点然后在IMR上发送至少一个干扰信号。 不期望至少一个干扰信号被由发射节点服务的任何节点解码或相干测量。

公开(公告)号：US20140112173A1

公开(公告)日：2014-04-24

申请号：US13877799

申请日：2013-03-13

申请人： David Hammarwall ,  Svante Bergman ,  George Jöngren

发明人： David Hammarwall ,  Svante Bergman ,  George Jöngren

IPC分类号： H04L5/00 ,  H04W24/10

CPC分类号： H04W24/10 ,  H04B17/345 ,  H04L1/0026 ,  H04L5/0032 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0091

摘要： A system and method for providing an eNodeB with the flexibility to configure a Channel State Information (CSI) report to match a specific Coordinated Multipoint (CoMP) transmission hypothesis, which is a candidate for a downlink transmission to a User Equipment (UE) is disclosed. A UE receives, from the eNodeB, a configuration message that specifies a CSI report. The CSI report is specified by a particular interference hypothesis and a particular desired signal hypothesis corresponding to data transmission over at least one effective channel characterized by a specific reference signal. The UE estimates interference according to the interference hypothesis, and/or estimates at least one effective channel by performing measurements on the specific reference signal, and determines a CSI report based on the interference estimation and on the estimated effective channel. The UE also transmits the CSI report to the eNodeB.

摘要翻译： 公开了一种用于向eNodeB提供配置信道状态信息（CSI）报告以匹配作为向用户设备（UE）的下行链路传输的候选者的特定协调多点（CoMP）传输假设）的系统和方法， 。 UE从eNodeB接收指定CSI报告的配置消息。 CSI报告由特定干扰假设和对应于通过特定参考信号表征的至少一个有效信道上的数据传输的特定期望信号假设来指定。 UE根据干扰假设估计干扰，和/或通过对特定参考信号执行测量来估计至少一个有效信道，并且基于干扰估计和估计的有效信道来确定CSI报告。 UE还向eNodeB发送CSI报告。

公开(公告)号：US09591655B2

公开(公告)日：2017-03-07

申请号：US14398873

申请日：2012-05-16

申请人： David Hammarwall ,  Svante Bergman ,  Jonas Fröberg Olsson ,  George Jöngren

发明人： David Hammarwall ,  Svante Bergman ,  Jonas Fröberg Olsson ,  George Jöngren

IPC分类号： H04W72/08 ,  H04J11/00 ,  H04L1/00 ,  H04L1/20 ,  H04B17/382 ,  H04L5/00 ,  H04B7/02 ,  H04W24/10 ,  H04B17/345

CPC分类号： H04W72/082 ,  H04B7/024 ,  H04B17/345 ,  H04B17/382 ,  H04J11/0053 ,  H04L1/00 ,  H04L1/0026 ,  H04L1/0077 ,  H04L1/20 ,  H04L5/0048 ,  H04W24/10

摘要： The invention relates to methods and arrangements in a transmitting node for enabling a receiving node to perform measurements on interference caused by transmissions from at least one transmission point controlled by the transmitting node on receptions at the receiving node. The transmitting and receiving nodes are comprised in a wireless communications system. The transmitting node determines an interference measurement resource, IMR, for the receiving node. The receiving node is expected to measure interference on the IMR. The transmitting node then transmits at least one interfering signal on the IMR. The at least one interfering signal is not expected to be decoded or coherently measured upon by any node served by the transmitting node.

摘要翻译： 本发明涉及一种发送节点中的方法和装置，用于使接收节点能够对由接收节点的接收上的由发送节点控制的至少一个发送点的传输引起的干扰执行测量。 发送和接收节点包括在无线通信系统中。 发射节点确定接收节点的干扰测量资源IMR。 接收节点有望测量IMR上的干扰。 发射节点然后在IMR上发送至少一个干扰信号。 不期望至少一个干扰信号被由发射节点服务的任何节点解码或相干测量。

公开(公告)号：US20140073313A1

公开(公告)日：2014-03-13

申请号：US13877920

申请日：2013-03-14

申请人： David Hammarwall ,  George Jöngren ,  Svante Bergman

发明人： David Hammarwall ,  George Jöngren ,  Svante Bergman

IPC分类号： H04W24/02

CPC分类号： H04W24/02 ,  H04B7/024 ,  H04B7/0417 ,  H04B7/0626 ,  H04B17/0085 ,  H04B17/345 ,  H04L1/0026

摘要： A system and method for improving the link adaptation in a wireless communication system is disclosed. User Equipment (UE) forms an interference hypothesis by amending a measured interference and noise by artificially injecting, to the measured interference and noise, interference corresponding to at least one emulated interfering isotropic signal that is virtually transmitted over an associated estimated effective channel. The UE further determines at least one channel state information (CSI) report based on the interference hypothesis, and transmits the CSI report to the network.

摘要翻译： 公开了一种用于改善无线通信系统中的链路自适应的系统和方法。 用户设备（UE）通过修改测量的干扰和噪声来形成干扰假设，通过人为地将测量到的干扰和噪声干扰对应于在相关联的估计有效信道上虚拟传输的至少一个仿真干扰各向同性信号。 UE还基于干扰假设确定至少一个信道状态信息（CSI）报告，并将CSI报告发送到网络。

公开(公告)号：US09337970B2

公开(公告)日：2016-05-10

申请号：US13877799

申请日：2013-03-13

申请人： David Hammarwall ,  Svante Bergman ,  George Jöngren

发明人： David Hammarwall ,  Svante Bergman ,  George Jöngren

IPC分类号： H04L5/00 ,  H04L1/00 ,  H04W24/10

CPC分类号： H04W24/10 ,  H04B17/345 ,  H04L1/0026 ,  H04L5/0032 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0091

摘要： A system and method for providing an eNodeB with the flexibility to configure a Channel State Information (CSI) report to match a specific Coordinated Multipoint (CoMP) transmission hypothesis, which is a candidate for a downlink transmission to a User Equipment (UE) is disclosed. A UE receives, from the eNodeB, a configuration message that specifies a CSI report. The CSI report is specified by a particular interference hypothesis and a particular desired signal hypothesis corresponding to data transmission over at least one effective channel characterized by a specific reference signal. The UE estimates interference according to the interference hypothesis, and/or estimates at least one effective channel by performing measurements on the specific reference signal, and determines a CSI report based on the interference estimation and on the estimated effective channel. The UE also transmits the CSI report to the eNodeB.

摘要翻译： 公开了一种用于向eNodeB提供配置信道状态信息（CSI）报告以匹配作为向用户设备（UE）的下行链路传输的候选者的特定协调多点（CoMP）传输假设）的系统和方法， 。 UE从eNodeB接收指定CSI报告的配置消息。 CSI报告由特定干扰假设和对应于通过特定参考信号表征的至少一个有效信道上的数据传输的特定期望信号假设来指定。 UE根据干扰假设估计干扰，和/或通过对特定参考信号执行测量来估计至少一个有效信道，并且基于干扰估计和估计的有效信道来确定CSI报告。 UE还向eNodeB发送CSI报告。

公开(公告)号：US09179332B2

公开(公告)日：2015-11-03

申请号：US13877920

申请日：2013-03-14

申请人： David Hammarwall ,  Svante Bergman ,  George Jöngren

发明人： David Hammarwall ,  Svante Bergman ,  George Jöngren

IPC分类号： H04W24/02 ,  H04B7/06 ,  H04L1/00 ,  H04B7/02 ,  H04B7/04 ,  H04B17/00 ,  H04B17/345

CPC分类号： H04W24/02 ,  H04B7/024 ,  H04B7/0417 ,  H04B7/0626 ,  H04B17/0085 ,  H04B17/345 ,  H04L1/0026

摘要： A system and method for improving the link adaptation in a wireless communication system is disclosed. User Equipment (UE) forms an interference hypothesis by amending a measured interference and noise by artificially injecting, to the measured interference and noise, interference corresponding to at least one emulated interfering isotropic signal that is virtually transmitted over an associated estimated effective channel. The UE further determines at least one channel state information (CSI) report based on the interference hypothesis, and transmits the CSI report to the network.

摘要翻译： 公开了一种用于改善无线通信系统中的链路自适应的系统和方法。 用户设备（UE）通过修改测量的干扰和噪声来形成干扰假设，通过人为地将测量到的干扰和噪声干扰对应于在相关联的估计有效信道上虚拟传输的至少一个仿真干扰各向同性信号。 UE还基于干扰假设确定至少一个信道状态信息（CSI）报告，并将CSI报告发送到网络。

公开(公告)号：US09059758B2

公开(公告)日：2015-06-16

申请号：US13876072

申请日：2011-09-26

申请人： David Hammarwall ,  Svante Bergman ,  George Jöngren

发明人： David Hammarwall ,  Svante Bergman ,  George Jöngren

IPC分类号： H04B7/04 ,  H04B7/06

CPC分类号： H04B7/0486 ,  H04B7/0619 ,  H04B7/063

摘要： The invention relates to methods and arrangements for rank adaptation for transmissions over a multipie-input-muttipie-output, M1MO, channel in a wireless communications system. A receiving node (270) performs (310) measurements on reference signals received from a sending node (200), The receiving node performs (330a(330b) a first feedback computation for a first rank and at least one second feedback computation for at yeast one second rank based on the measurements. The first feedback computation includes applying a first relation between assumed transmitted energy for data and transmitted energy for the reference signals that is specific to the first rank. A second relation between assumed transmitted energy for data and transmitted energy for the reference signals is specific to the at least one second rank. The receiving node selects (340) one rank based on the feedback computations and indicates (350) the selected rank in a feedback report to the sending node.

摘要翻译： 本发明涉及用于通过无线通信系统中的多码输入多输出，M1MO，信道的传输的秩适应的方法和装置。 接收节点（270）对从发送节点（200）接收的参考信号执行（310）测量。接收节点对酵母进行第一等级的第一反馈计算和至少一个第二反馈计算 第一反馈计算包括应用假设的数据发射能量与针对第一等级特定的参考信号的发射能量之间的第一关系，数据和发射能量的假设发射能量之间的第二个关系 所述参考信号特定于所述至少一个第二等级，所述接收节点基于所述反馈计算选择（340）一个等级，并且向所述发送节点指示（350）所述反馈报告中的所选等级。

公开(公告)号：US20130195161A1

公开(公告)日：2013-08-01

申请号：US13876072

申请日：2011-09-26

申请人： David Hammarwall ,  Svante Bergman ,  George Jöngren

发明人： David Hammarwall ,  Svante Bergman ,  George Jöngren

IPC分类号： H04B7/04

CPC分类号： H04B7/0486 ,  H04B7/0619 ,  H04B7/063

摘要： The invention relates to methods and arrangements for rank adaptation for transmissions over a multipie-input-muttipie-output, M1MO, channel in a wireless communications system. A receiving node (270) performs (310) measurements on reference signals received from a sending node (200), The receiving node performs (330a(330b) a first feedback computation for a first rank and at least one second feedback computation for at yeast one second rank based on the measurements. The first feedback computation includes applying a first relation between assumed transmitted energy for data and transmitted energy for the reference signals that is specific to the first rank. A second relation between assumed transmitted energy for data and transmitted energy for the reference signals is specific to the at least one second rank. The receiving node selects (340) one rank based on the feedback computations and indicates (350) the selected rank in a feedback report to the sending node.

摘要翻译： 本发明涉及用于通过无线通信系统中的多码输入多输出，M1MO，信道的传输的秩适应的方法和装置。 接收节点（270）对从发送节点（200）接收的参考信号执行（310）测量。接收节点对酵母进行第一等级的第一反馈计算和至少一个第二反馈计算 第一反馈计算包括应用假设的数据发射能量与针对第一等级特定的参考信号的发射能量之间的第一关系，数据和发射能量的假设发射能量之间的第二个关系 所述参考信号特定于所述至少一个第二等级，所述接收节点基于所述反馈计算选择（340）一个等级，并且向所述发送节点指示（350）所述反馈报告中的所选等级。

公开(公告)号：US08494033B2

公开(公告)日：2013-07-23

申请号：US12973096

申请日：2010-12-20

申请人： George Jöngren ,  Svante Bergman ,  David Hammarwall

发明人： George Jöngren ,  Svante Bergman ,  David Hammarwall

IPC分类号： H04L25/49

CPC分类号： H04B7/0617 ,  H04B7/0639 ,  H04B7/065 ,  H04B7/0663

摘要： Data may be transmitted from a first communications device using multiple antennas to a second communications device based on precoder feedback defining a grid of transmission beams. A first precoder index may be received from the second communications device, and a second precoder index may be received from the second communications device. At least one symbol stream may be processed based at least in part on the first and second precoder indices to generate antenna signals for respective antenna elements of the multiple antennas, and the antenna signals may be transmitted over the multiple antennas to the communications device. Related base stations and user equipment are also discussed.

摘要翻译： 可以基于定义传输波束网格的预编码器反馈从多个天线的第一通信设备向第二通信设备发送数据。 可以从第二通信设备接收第一预编码器索引，并且可以从第二通信设备接收第二预编码器索引。 可以至少部分地基于第一和第二预编码器索引来处理至少一个符号流，以生成多个天线中的各个天线元件的天线信号，并且天线信号可以通过多个天线发送到通信设备。 还讨论了相关基站和用户设备。

公开(公告)号：US08885749B2

公开(公告)日：2014-11-11

申请号：US13520906

申请日：2012-03-02

申请人： Niklas Wernersson ,  Svante Bergman ,  George Jöngren

发明人： Niklas Wernersson ,  Svante Bergman ,  George Jöngren

IPC分类号： H04B7/02

CPC分类号： H04B7/0617 ,  H04B7/0632 ,  H04B7/0639

摘要： A method in a radio base station for transforming a data transmission signal in a radio communications network. The radio base station is connected to an active antenna array of a first number of active transmitting antennas, which each active transmitting antenna comprises sub elements. The radio base station comprises a precoder codebook comprising precoders for transmitting signals in a diversified manner for a second number of antenna ports. The radio base station precodes the data transmission signal with a precoder selected from the precoder codebook. The radio base station furthermore transforms, linearly, the precoded data transmission signal by neutralizing a direction of the precoded data transmission signal and then directing the precoded data transmission signal vertically. The precoded data transmission signal is thereby enabled to be vertically adjusted towards a user equipment in the radio communications network.

摘要翻译： 一种用于在无线电通信网络中变换数据传输信号的无线电基站中的方法。 无线电基站连接到第一数量的有源发射天线的有源天线阵列，每个有源发射天线包括子元件。 无线电基站包括预编码器码本，其包括用于以第二数量的天线端口以多样的方式发送信号的预编码器。 无线基站利用从预编码码本中选择的预编码器对数据发送信号进行预编码。 无线电基站进一步通过中和预编码的数据传输信号的方向，直线地指示预编码的数据传输信号，然后垂直地引导预编码的数据传输信号。 因此能够使无线通信网络中的用户设备垂直地调整预编码数据传输信号。