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1.发明授权公开(公告)号：US09236916B2
公开(公告)日：2016-01-12
申请号：US13636780
申请日：2012-09-13
CPC分类号： H04B7/024 , H04B7/0617 , H04B7/0619 , H04B7/0626 , H04B7/063 , H04B7/0632 , H04B7/0639 , H04B7/10 , H04B17/24 , H04L5/0023 , H04W72/06
摘要： Example embodiments presented herein are directed towards an eNodeB, and method therein, for generating downlink communications in a multiple antenna system. The method comprises transmitting, to a number of user equipments, a plurality of reference signals, where each signal is beamformed in a distinct direction within at least one correlated domain (e.g., elevation and/or azimuth). The eNodeB receives at least one CSI report from a specific user equipment and determines a primary reference signal based on, for example, the at least one CSI report. The eNodeB may thereafter generate downlink communication signals for antenna element(s) and/or subelements of the multiple antenna system. The downlink communication signals are beamformed into a transmitting direction that aligns most closely with a beamforming direction of the at least one primary reference signal, as compared to any other beamforming direction of the reference signals.
摘要翻译： 本文呈现的示例性实施例针对其中的eNodeB及其方法，用于在多天线系统中生成下行链路通信。 该方法包括向多个用户设备发送多个参考信号，其中每个信号在至少一个相关域（例如，仰角和/或方位角）内的不同方向上被波束形成。 eNodeB从特定用户设备接收至少一个CSI报告，并且基于例如至少一个CSI报告确定主参考信号。 eNodeB然后可以为多天线系统的天线元件和/或子元件生成下行链路通信信号。 与参考信号的任何其他波束形成方向相比，下行链路通信信号被波束形成发送方向，其最接近地与至少一个主参考信号的波束成形方向对齐。
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公开(公告)号：US20150117392A1
公开(公告)日：2015-04-30
申请号：US14398873
申请日：2012-05-16
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。
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公开(公告)号：US20130242773A1
公开(公告)日：2013-09-19
申请号：US13636780
申请日：2012-09-13
CPC分类号： H04B7/024 , H04B7/0617 , H04B7/0619 , H04B7/0626 , H04B7/063 , H04B7/0632 , H04B7/0639 , H04B7/10 , H04B17/24 , H04L5/0023 , H04W72/06
摘要： Example embodiments presented herein are directed towards an eNodeB, and method therein, for generating downlink communications in a multiple antenna system. The method comprises transmitting, to a number of user equipments, a plurality of reference signals, where each signal is beamformed in a distinct direction within at least one correlated domain (e.g., elevation and/or azimuth). The eNodeB receives at least one CSI report from a specific user equipment and determines a primary reference signal based on, for example, the at least one CSI report. The eNodeB may thereafter generate downlink communication signals for antenna element(s) and/or subelements of the multiple antenna system. The downlink communication signals are beamformed into a transmitting direction that aligns most closely with a beamforming direction of the at least one primary reference signal, as compared to any other beamforming direction of the reference signals.
摘要翻译： 本文呈现的示例性实施例针对其中的eNodeB及其方法，用于在多天线系统中生成下行链路通信。 该方法包括向多个用户设备发送多个参考信号，其中每个信号在至少一个相关域（例如，仰角和/或方位角）内的不同方向上被波束形成。 eNodeB从特定用户设备接收至少一个CSI报告，并且基于例如至少一个CSI报告确定主参考信号。 eNodeB然后可以为多天线系统的天线元件和/或子元件生成下行链路通信信号。 与参考信号的任何其他波束形成方向相比，下行链路通信信号被波束形成发送方向，其最接近地与至少一个主参考信号的波束成形方向对齐。
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公开(公告)号：US20130242769A1
公开(公告)日：2013-09-19
申请号：US13577467
申请日：2012-06-15
申请人： David Hammarwall , Svante Bergman
发明人： David Hammarwall , Svante Bergman
IPC分类号： H04W24/10
CPC分类号： H04B7/024 , H04B7/063 , H04B7/0639 , H04B7/0676 , H04B7/0682 , H04J11/0053 , H04J13/004 , H04L5/0016 , H04L5/0035
摘要： Frequency-selective phase shifts are applied to signals transmitted from multiple transmission points involved in a coordinated (joint) transmission to a given UE. An eNodeB or other network node controlling the joint transmission artificially induces frequency selectivity between signals received by the UE in joint transmission from different transmission points, so as to ensure an even balance between constructive and destructive combination over frequency. By applying frequency-selective phase shifts (e.g., pseudo-random phase shifts) to the different transmission points that perform joint transmission, the signals from the different transmission points are forced to combine at the UE in a non-coherent manner. As a result, uncertainty in how the signals combine is drastically reduced, since it can be expected that the signals will always combine incoherently. The reduced uncertainty translates to reduced back-off offset in the link adaptation, and thus in an increased throughput.
摘要翻译： 频率选择性相移被应用于从涉及协调（联合）传输到给定UE的多个传输点发送的信号。 控制联合传输的eNodeB或其他网络节点在不同传输点的联合传输中人为地诱导由UE接收的信号之间的频率选择性，以便确保在频率上的建设性和破坏性组合之间的均衡。 通过对执行联合传输的不同传输点应用频率选择性相移（例如，伪随机相移），来自不同传输点的信号被强制以不相干的方式在UE处组合。 结果，信号组合的不确定性大大降低，因为可以预期信号将总是不连贯地组合。 减少的不确定性转化为链路适配中的减小偏移，并且因此增加的吞吐量。
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5.发明授权Configuring channel-state information resources used for reference-signal-received-power feedback 有权配置用于参考信号接收功率反馈的信道状态信息资源公开(公告)号：US09172439B2
公开(公告)日：2015-10-27
申请号：US13518007
申请日：2012-04-25
CPC分类号： H04B7/024 , H04B7/0456 , H04B7/0617 , H04B7/0619 , H04B7/0626 , H04L5/001 , H04L5/0035 , H04L5/0057 , H04L5/0069 , H04W64/00
摘要： The initialization of the CoMP Resource Management Set for a given mobile terminal is based, at least in part, on an estimation of the mobile terminal's geographical location, which can be estimated using network positioning of the mobile terminal. One example method begins with the acquisition (410) by a network node of a geographical position estimate for the mobile terminal of interest. The network node then selects (420) a set of one or more CSI-RS resources for measurement by the mobile terminal, based on the estimated geographical position of the mobile terminal. Finally, the network node configures the mobile terminal to measure the selected CSI-RS resources by sending (430) control information identifying the set to the mobile terminal.
摘要翻译： 用于给定移动终端的CoMP资源管理集的初始化至少部分地基于可以使用移动终端的网络定位估计的移动终端的地理位置的估计。 一个示例性方法开始于由感兴趣的移动终端的地理位置估计的网络节点的获取（410）。 网络节点然后基于所估计的移动终端的地理位置来选择（420）用于移动终端测量的一个或多个CSI-RS资源的集合。 最后，网络节点通过向移动终端发送（430）标识该集合的控制信息来配置移动终端来测量所选择的CSI-RS资源。
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公开(公告)号：US09591655B2
公开(公告)日：2017-03-07
申请号：US14398873
申请日：2012-05-16
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。
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公开(公告)号：US09331386B2
公开(公告)日：2016-05-03
申请号：US13520251
申请日：2012-06-08
CPC分类号： H01Q3/00 , H04B7/0417 , H04B7/0469 , H04B7/0617 , H04B7/0626 , H04B7/0632
摘要： Some example embodiments presented herein are directed towards an eNodeB, and corresponding method therein, for establishing beamforming for downlink communications in a multiple antenna system. The eNodeB may transmit a plurality of reference signals, where each reference signal is beamformed into a distinct direction with in at least one correlated domain (e.g., an elevation and/or azimuth domain). The eNodeB may generate beamformed downlink communications for antenna elements and/or subelements based on received signal quality assessments of the plurality of reference signals. Some example embodiments may be directed towards a user equipment, and corresponding methods therein, for establishing beamforming for downlink communications. The user equipment may receive the plurality of reference signals and provide signal assessments of the reference signals based on measurements performed by the user equipment. The user equipment may transmit the signal quality assessments to the eNodeB and receive beamformed downlink communications based on the signal quality assessments.
摘要翻译： 本文呈现的一些示例性实施例针对eNodeB，以及其中的相应方法，用于建立用于多天线系统中的下行链路通信的波束成形。 eNodeB可以发送多个参考信号，其中每个参考信号在至少一个相关域（例如，高程和/或方位域）中被波束形成为不同的方向。 基于多个参考信号的接收信号质量评估，eNodeB可以为天线元件和/或子元件生成波束形成的下行链路通信。 一些示例实施例可以针对用于用于下行链路通信的建立波束形成的用户设备及其中的相应方法。 用户设备可以基于用户设备执行的测量来接收多个参考信号并提供参考信号的信号评估。 用户设备可以将信号质量评估传送到eNodeB，并且基于信号质量评估来接收波束形成的下行链路通信。
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公开(公告)号：US09204317B2
公开(公告)日：2015-12-01
申请号：US13469843
申请日：2012-05-11
申请人： David Hammarwall , Svante Bergman
发明人： David Hammarwall , Svante Bergman
IPC分类号： H04L12/26 , H04W24/02 , H04B7/04 , H04B7/06 , H04L1/00 , H04L25/02 , H04L25/03 , H04L5/00 , H04W52/16 , H04W52/32
CPC分类号： H04B7/0626 , H04B7/0456 , H04B7/0617 , H04B7/0619 , H04B7/063 , H04B7/0639 , H04L1/0026 , H04L5/0026 , H04L5/0035 , H04L5/005 , H04L5/0057 , H04L25/0224 , H04L25/03949 , H04W24/02 , H04W24/10 , H04W52/16 , H04W52/325
摘要： Some embodiments provide a method in a wireless device for reporting channel state information, CSI, for a CSI process. The CSI process corresponds to a reference signal resource and an interference measurement resource. According to the method, the wireless device obtains an adjustment value associated with the CSI process. The wireless device estimates an effective channel based on one or more reference signals received in the reference signal resource, and applies the adjustment value to the estimated effective channel, thereby obtaining an adjusted effective channel. Furthermore, the wireless device determines channel state information based on the adjusted effective channel, and on interference estimated based on the interference measurement resource. Finally, the channel state information is transmitted to a network node.
摘要翻译： 一些实施例提供了一种无线设备中用于为CSI过程报告信道状态信息CSI的方法。 CSI过程对应于参考信号资源和干扰测量资源。 根据该方法，无线设备获得与CSI进程相关联的调整值。 无线设备基于在参考信号资源中接收的一个或多个参考信号估计有效信道，并将调整值应用于估计的有效信道，由此获得调整的有效信道。 此外，无线设备基于调整的有效信道以及基于干扰测量资源估计的干扰来确定信道状态信息。 最后，将信道状态信息发送到网络节点。
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公开(公告)号：US08831125B2
公开(公告)日：2014-09-09
申请号：US13520294
申请日：2012-06-08
IPC分类号： H04B7/02
CPC分类号： H01Q3/00 , H04B7/0417 , H04B7/0469 , H04B7/0617 , H04B7/0626 , H04B7/0632
摘要： Some of the example embodiments presented herein are directed towards an eNodeB (401), and corresponding method therein, for providing data transmission in a multiple antenna system. The eNodeB (401) may be configured to receive a plurality of signal quality assessments and a CSI report from a user equipment. Based on the received data the eNodeB (401) may determine a received power difference between the received data. The eNodeB (401) may further determine a beamforming direction for subsequent data transmissions. Based on the power difference, the eNodeB (401) may account for the received power difference in the subsequent data transmissions, thus improving data communications towards the user equipment.
摘要翻译： 这里呈现的一些示例性实施例针对eNodeB（401）及其中的相应方法，用于在多天线系统中提供数据传输。 eNodeB（401）可以被配置为从用户设备接收多个信号质量评估和CSI报告。 基于接收的数据，eNodeB（401）可以确定所接收的数据之间的接收功率差。 eNodeB（401）还可以确定用于后续数据传输的波束形成方向。 基于功率差异，eNodeB（401）可以考虑后续数据传输中的接收功率差异，从而改善到用户设备的数据通信。
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公开(公告)号：US08798550B2
公开(公告)日：2014-08-05
申请号：US13469809
申请日：2012-05-11
申请人： David Hammarwall , Svante Bergman
发明人： David Hammarwall , Svante Bergman
IPC分类号： H04B17/00
CPC分类号： H04B7/0456 , H04B7/063 , H04B7/0639 , H04J11/0053 , H04L1/0026 , H04L1/06 , H04L1/1671 , H04L5/0057
摘要： Some embodiments provide a method in a wireless device for reporting channel state information, CSI, for a CSI process. The CSI process corresponds to a reference signal resource and an associated interference measurement resource, IMR. According to the method, the wireless device obtains an interference power adjustment value. The wireless device estimates interference and noise based on the IMR, and on the interference power adjustment value. Furthermore, the wireless device determines channel state information based on an estimated effective channel measured based on the reference signal resource, and on the estimated interference and noise. Finally, the wireless device transmits the channel state information to a network node.
摘要翻译： 一些实施例提供了一种无线设备中用于为CSI过程报告信道状态信息CSI的方法。 CSI过程对应于参考信号资源和相关联的干扰测量资源IMR。 根据该方法，无线装置获得干扰功率调整值。 无线设备基于IMR估计干扰和噪声以及干扰功率调整值。 此外，无线设备基于基于参考信号资源测量的估计有效信道以及估计的干扰和噪声来确定信道状态信息。 最后，无线设备向网络节点发送信道状态信息。
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