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1. 发明授权

US09236916B2 Node and method for generating beamformed for downlink communications 有权
标题翻译：用于生成用于下行链路通信的波束形成的节点和方法
公开(公告)号：US09236916B2
公开(公告)日：2016-01-12
申请号：US13636780
申请日：2012-09-13
申请人： Niklas Wernersson , David Hammarwall , Svante Bergman
发明人： Niklas Wernersson , David Hammarwall , Svante Bergman
IPC分类号： H04W72/06 , H04W72/08 , H04B7/02 , H04B7/06 , H04L5/00 , H04B7/10 , H04B17/24
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。

2. 发明申请

US20150117392A1 Method and Arrangement in a Wireless Communication System 有权
标题翻译：无线通信系统中的方法与布置
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。

3. 发明申请

US20140018118A1 User Equiptment and Associated Method 审中-公开
标题翻译：用户配额和相关方法
公开(公告)号：US20140018118A1
公开(公告)日：2014-01-16
申请号：US13993375
申请日：2012-07-12
申请人： David Hammarwall
发明人： David Hammarwall
IPC分类号： H04W24/02 , H04L5/00
CPC分类号： H04W24/02 , H04B7/024 , H04B17/345 , H04J11/005 , H04L5/0057
摘要： It is presented a user equipment comprising: a processor; and an instruction memory. The instruction memory stores instructions that, when executed, causes the user equipment to: receive at least one command from a network node; obtain at least a first measurement of channel state information and a second measurement of channel state information as a response to the at least one command; determine whether an interference corresponding to the second measurement of channel state information occurs during a data reception phase; and decode received signals, when an interference corresponding to the second measurement of channel state information occurs, based on the second measurement of channel state information.
摘要翻译：提供了一种用户设备，包括：处理器; 和指令存储器。所述指令存储器存储指令，所述指令在执行时使得所述用户设备：从网络节点接收至少一个命令; 获取信道状态信息的至少第一测量和作为对所述至少一个命令的响应的信道状态信息的第二测量; 确定在数据接收阶段是否发生与信道状态信息的第二测量相对应的干扰; 并且当基于信道状态信息的第二测量发生与信道状态信息的第二测量相对应的干扰时，对接收信号进行解码。

4. 发明申请

US20130310059A1 Soft Cell Inter-Layer Interference Handling 有权
标题翻译：软单元层间干扰处理
公开(公告)号：US20130310059A1
公开(公告)日：2013-11-21
申请号：US13640337
申请日：2012-07-30
申请人： Stefan Parkvall , David Astely , Erik Dahlman , David Hammarwall , Bengt Lindoff , Stefano Sorrentino , Leif Wilhelmsson
发明人： Stefan Parkvall , David Astely , Erik Dahlman , David Hammarwall , Bengt Lindoff , Stefano Sorrentino , Leif Wilhelmsson
IPC分类号： H04W72/04
CPC分类号： H04W72/1231 , H04W52/143 , H04W52/244 , H04W72/0446 , Y02D70/00
摘要： In a heterogeneous cell deployment a mobile terminal may need to receive control data transmissions from a macro node at the same time as a pico node is transmitting user data for the mobile terminal, using the same frequency or set of frequencies. This can result in a problematic interference situation. According to several embodiments of the present invention, at least one of two general approaches is used to mitigate the interference situation described above. In a first approach, the pico node's transmission power is reduced in some time intervals, thereby reducing the interference to a level where reception from the macro node is possible. In a second approach, which may be combined with the first approach in some cases, the data transmitted from the macro node is provided by the pico node, either alone or in combination with the macro node.
摘要翻译：在异构小区部署中，移动终端可能需要在微微节点正在使用相同的频率或频率集合来传送移动终端的用户数据的同时从宏节点接收控制数据传输。这可能导致有问题的干扰情况。根据本发明的几个实施例，使用两种一般方法中的至少一种来减轻上述干扰情况。在第一种方法中，微微节点的传输功率在一些时间间隔内减小，从而将干扰降低到可能从宏节点接收的水平。在一些可能与第一种方法组合的第二种方法中，从宏节点发送的数据由微微节点提供，单独或与宏节点组合。

5. 发明申请

US20130242773A1 NODE AND METHOD FOR GENERATING BEAMFORMED FOR DOWNLINK COMMUNICATIONS 有权
标题翻译：生成用于下行链路通信的节点和方法
公开(公告)号：US20130242773A1
公开(公告)日：2013-09-19
申请号：US13636780
申请日：2012-09-13
申请人： Niklas Wernersson , David Hammarwall , Svante Bergman
发明人： Niklas Wernersson , David Hammarwall , Svante Bergman
IPC分类号： H04W72/08 , H04W24/00 , H04W72/04
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。

6. 发明申请

US20130242769A1 Induced Incoherency for Joint Transmission 有权
标题翻译：联合传动引起的不连续性
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。

7. 发明申请

US20130064122A1 LINK QUALITY ESTIMATION AND APPARATUS IN A TELECOMMUNICATION SYSTEM 有权
标题翻译：链路质量评估和设备在电信系统中的应用
公开(公告)号：US20130064122A1
公开(公告)日：2013-03-14
申请号：US13660158
申请日：2012-10-25
申请人： David Hammarwall , George Jöngren , Magnus Lundevall
发明人： David Hammarwall , George Jöngren , Magnus Lundevall
IPC分类号： H04W24/00
CPC分类号： H04W24/02 , H04L1/0026 , H04L1/0034 , H04L1/1607 , H04L5/0023 , H04W72/0406 , H04W72/082 , H04W72/085 , H04W88/08
摘要： Method and apparatus for enabling accurate link quality estimation of a wireless link between a sending node and a receiving node. When the sending node receives link state reports from the receiving node, it estimates the current state of the wireless link. The sending node also determines a measurement adjusting parameter if the link state reports are deemed inaccurate in relation to the estimated link state, based on a deviation between the received link state reports and the estimated actual link state. The sending node then sends the determined measurement adjusting parameter to the receiving node, and the receiving node provides a link state report based on signal measurements adjusted by the measurement adjusting parameter. The adjusted link state report can then be used for link adaptation of the wireless link and/or for packet scheduling decisions.
摘要翻译：用于实现发送节点和接收节点之间的无线链路的精确链路质量估计的方法和装置。当发送节点从接收节点接收到链路状态报告时，它估计无线链路的当前状态。如果链路状态报告相对于估计的链路状态被认为不准确，则发送节点还基于接收的链路状态报告与估计的实际链路状态之间的偏差来确定测量调整参数。然后，发送节点将确定的测量调整参数发送给接收节点，并且接收节点基于由测量调整参数调整的信号测量值来提供链路状态报告。调整后的链路状态报告然后可用于无线链路的链路自适应和/或用于分组调度决定。

8. 发明申请

US20110268063A1 SYSTEM AND METHOD FOR ALLOCATING TRANSMISSION RESOURCES BASED ON A TRANSMISSION RANK 有权
标题翻译：基于传输等级分配传输资源的系统和方法
公开(公告)号：US20110268063A1
公开(公告)日：2011-11-03
申请号：US13099101
申请日：2011-05-02
申请人： David Hammarwall , George Jöngren , Bo Göransson
发明人： David Hammarwall , George Jöngren , Bo Göransson
IPC分类号： H04W72/06
CPC分类号： H04W72/0413 , H04L1/003 , H04L1/0079 , H04L1/0618 , H04L1/1664 , H04L1/1671 , H04L5/0016 , H04L5/0026 , H04L5/0044 , H04L5/0046 , H04L5/0053 , H04L25/03929 , H04W72/02 , H04W72/0446
摘要： A method for wirelessly transmitting data using a plurality of transmission layers includes estimating a number of data vector symbols to be allocated to one or more user data codewords during the subframe and determining a number of bits in the one or more user data codewords. The method also includes calculating a nominal number of control vector symbols to allocate to control information based, at least in part, on the estimated number of data vector symbols and the determined number of bits in the one or more user data codewords. Additionally, the method includes determining an offset value based, at least in part, on a number of layers over which the wireless terminal will be transmitting during the subframe and calculating a final number of control vector symbols by multiplying the nominal number of control vector symbols and the offset value. The method also includes mapping one or more control codewords to the final number of control vector symbols and transmitting vector symbols carrying the one or more user data codewords and the one or more control codewords over the plurality of transmission layers during the subframe.
摘要翻译：使用多个传输层无线传输数据的方法包括估计在子帧期间分配给一个或多个用户数据码字的数据向量符号的数量，并确定一个或多个用户数据码字中的位数。该方法还包括至少部分地基于所估计的数据向量符号数和所确定的一个或多个用户数据码字中的位数来计算控制向量符号的标称数量以分配给控制信息。另外，该方法包括至少部分地基于无线终端将在子帧期间将要发射的层数来确定偏移值，并通过将控制向量符号的标称数量乘以来计算最终数量的控制向量符号和偏移值。该方法还包括将一个或多个控制码字映射到最终数量的控制向量符号，以及在子帧期间在多个传输层上传送承载一个或多个用户数据码字和一个或多个控制码字的矢量符号。

9. 发明申请

US20100197330A1 METHOD AND ARRANGEMENT IN A TELECOMMUNICATIONS SYSTEM 有权
标题翻译：电信系统中的方法和布置
公开(公告)号：US20100197330A1
公开(公告)日：2010-08-05
申请号：US12365703
申请日：2009-02-04
申请人： David Astely , David Hammarwall , George Jongren , Per Magnus Lundevall
发明人： David Astely , David Hammarwall , George Jongren , Per Magnus Lundevall
IPC分类号： H04B15/00 , H04B17/00
CPC分类号： H04W24/10 , H04B17/345 , H04L5/003 , H04L5/0048 , H04L5/0062 , H04L5/0073 , H04W24/08
摘要： A receiving unit or a transmitting unit of a wireless network, for facilitating noise and interference measurements on an air interface. The receiving unit includes: a network interface which obtains information relating to a time-varying layout of a silent resource element (RE) grid; an electronic memory having code in communication with the network interface which stores the information; and a processing unit in communication with the electronic memory that takes a presence of a silent RE grid into account in the reception of a control or a data channel.A method for a receiving/transmitting unit of a wireless network for facilitating noise and interference measurements on an air interface is described. Information relating to a time-varying layout of a silent resource element (RE) grid is obtained and a presence of a silent RE grid is taken into account in the reception of a control or a data channel.
摘要翻译：无线网络的接收单元或发射单元，用于促进空中接口上的噪声和干扰测量。接收单元包括：网络接口，其获取与无声资源元素（RE）网格的时变布局有关的信息; 电子存储器，其具有与存储该信息的网络接口通信的代码; 以及与在电子存储器通信的处理单元，其在接收控制或数据信道时考虑到静音RE网格的存在。描述了一种用于无线网络的接收/发送单元的方法，用于促进空中接口上的噪声和干扰测量。获得与静默资源元素（RE）网格的时变布局相关的信息，并且在控制或数据信道的接收中考虑无声RE网格的存在。

10. 发明授权

US09736828B2 Network node and a method therein for scheduling a downlink data transmission to a UE, and a UE and a method therein for receiving a downlink data transmission 有权
公开(公告)号：US09736828B2
公开(公告)日：2017-08-15
申请号：US14413870
申请日：2012-07-17
申请人： Stefano Sorrentino , David Hammarwall , George Jöngren
发明人： Stefano Sorrentino , David Hammarwall , George Jöngren
IPC分类号： H04W72/04 , H04W72/12 , H04L5/00 , H04W76/04
CPC分类号： H04W72/042 , H04L5/0057 , H04W72/048 , H04W72/1205 , H04W76/27
摘要： A network node, a UE and respective methods therein are provided for enabling transmission of data using a resource element reserved for CRS. The method in the network node for scheduling a downlink data transmission to the UE currently connected to the network node, comprises determining to schedule data transmission to the UE using at least one resource element reserved for transmitting CRSs during at least one subframe; and transmitting data to the UE using the at least one resource element reserved for transmitting the at least one CRS during the at least one subframe.

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