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1. 发明申请

WO2013133744A1 DATA TRANSMISSION IN A MULTIPLE ANTENNA SYSTEM 审中-公开
标题翻译：数据传输在多个天线系统中
公开(公告)号：WO2013133744A1
公开(公告)日：2013-09-12
申请号：PCT/SE2012/050623
申请日：2012-06-08
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , WERNERSSON, Niklas , HAMMARWALL, David , BERGMAN, Svante
发明人： WERNERSSON, Niklas , HAMMARWALL, David , BERGMAN, Svante
IPC分类号： H04B7/06
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。基于接收到的数据，eNodeB（401）可以确定接收到的数据之间的接收功率差。 eNodeB（401）可以进一步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。

2. 发明申请

WO2013133745A1 NODE AND METHOD FOR ESTABLISHING BEAMFORMING FOR DOWNLINK COMMUNICATIONS 审中-公开
标题翻译：用于建立下行链路通信波束的节点和方法
公开(公告)号：WO2013133745A1
公开(公告)日：2013-09-12
申请号：PCT/SE2012/050624
申请日：2012-06-08
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , WERNERSSON, Niklas , HAMMARWALL, David , BERGMAN, Svante
发明人： WERNERSSON, Niklas , HAMMARWALL, David , BERGMAN, Svante
IPC分类号： H04B7/06
CPC分类号： H01Q3/00 , H04B7/0417 , H04B7/0469 , H04B7/0617 , H04B7/0626 , H04B7/0632
摘要： Example embodiments presented herein are directed towards an eNodeB (401), and method therein, for establishing beamforming for downlink communications in a multiple antenna system. The eNodeB may be configured to receive, from a user equipment, a plurality of signal quality assessments which correspond to a distinct direction within at least one correlated domain (e.g., an elevation and/or azimuth domain). Based on the signal quality assessments, at least one first and second signal quality assessment may be identified according to a predetermined signal characteristic. Thereafter, a transmission direction may be determined based on the at least one first and second signal quality assessment and associated directions within the at least one correlated domain. Based on the determined transmission direction, downlink communications may be transmitted to the user equipment.
摘要翻译：这里呈现的示例性实施例针对eNodeB（401）及其中的方法，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可以被配置为从用户设备接收对应于至少一个相关域（例如，高程和/或方位角域）内的不同方向的多个信号质量评估。基于信号质量评估，可以根据预定的信号特性来识别至少一个第一和第二信号质量评估。此后，可以基于至少一个相关域内的至少一个第一和第二信号质量评估和相关联的方向来确定传输方向。基于确定的传输方向，可以向用户设备发送下行链路通信。

3. 发明申请

WO2013133743A1 BEAMFORMED DOWNLINK COMMUNICATIONS FOR A MULTIPLE ANTENNA SYSTEM 审中-公开
标题翻译：用于多个天线系统的BEAMFORMED DOWNLINK通信
公开(公告)号：WO2013133743A1
公开(公告)日：2013-09-12
申请号：PCT/SE2012/050616
申请日：2012-06-08
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , WERNERSSON, Niklas , BERGMAN, Svante , HAMMARWALL, David
发明人： WERNERSSON, Niklas , BERGMAN, Svante , HAMMARWALL, David
IPC分类号： H01B7/06
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 establishing beamforming for downlink communications in a multiple antenna system. The eNodeB (401) may be configured to 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 (401) may thereafter 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 (505), and corresponding methods therein, for establishing beamforming for downlink communications. The user equipment (505) may be configured to receive the plurality of reference signals and provide signal assessments of the reference signals based on measurements performed by the user equipment (505). The user equipment (505) may thereafter transmit the signal quality assessments to the eNodeB (401) and receive beamformed downlink communications based on the signal quality assessments.
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，用于建立用于多天线系统中的下行链路通信的波束成形。 eNodeB（401）可以被配置为发送多个参考信号，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。 eNodeB（401）随后可以基于多个参考信号的接收信号质量评估来生成用于天线元件和/或子元件的波束形成的下行链路通信。一些示例性实施例可以针对用户设备（505）及其中的相应方法，用于建立用于下行链路通信的波束形成。用户设备（505）可以被配置为基于由用户设备（505）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。然后，用户设备（505）可以将信号质量评估发送到eNodeB（401），并且基于信号质量评估来接收波束形成的下行链路通信。

4. 发明申请

WO2013137794A1 NODE AND METHOD FOR GENERATING BEAMFORMED SIGNALS FOR DOWNLINK COMMUNICATION 审中-公开
标题翻译：用于生成用于下行链路通信的波束形成信号的节点和方法
公开(公告)号：WO2013137794A1
公开(公告)日：2013-09-19
申请号：PCT/SE2012/050965
申请日：2012-09-13
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , WERNERSSON, Niklas , HAMMARWALL, David , BERGMAN, Svante
发明人： WERNERSSON, Niklas , HAMMARWALL, David , BERGMAN, Svante
IPC分类号： H04B7/06 , H04B7/02
CPC分类号： H04B7/024 , H04B7/0617 , H04B7/0626 , H04B7/0632
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它波束成形方向相比，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。

5. 发明申请

WO2013133742A1 CONFIGURING CHANNEL-STATE FEEDBACK RESOURCES 审中-公开
标题翻译：配置通道状态反馈资源
公开(公告)号：WO2013133742A1
公开(公告)日：2013-09-12
申请号：PCT/SE2012/050430
申请日：2012-04-25
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , HAMMARWALL, David , WERNERSSON, Niklas , BERGMAN, Svante
发明人： HAMMARWALL, David , WERNERSSON, Niklas , BERGMAN, Svante
IPC分类号： H04B7/06 , H04B5/00
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 fay 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）用于测量移动终端的一个或多个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。

6. 发明申请

WO2013129985A1 RADIO BASE STATION AND METHOD THEREIN FOR TRANSFORMING A DATA TRANSMISSION SIGNAL 审中-公开
标题翻译：无线电台站及其转换数据传输信号的方法
公开(公告)号：WO2013129985A1
公开(公告)日：2013-09-06
申请号：PCT/SE2012/050240
申请日：2012-03-02
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , WERNERSSON, Niklas , JÖNGREN, George , BERGMAN, Svante
发明人： WERNERSSON, Niklas , JÖNGREN, George , BERGMAN, Svante
IPC分类号： H04B7/06
CPC分类号： H04B7/0617 , H04B7/0632 , H04B7/0639
摘要： Embodiments herein relate to a method in a radio base station (12) for transforming a data transmission signal in a radio communications network. The radio base station (12) 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 (12) comprises a precoder codebook comprising precoders for transmitting signals in a diversified manner for a second number of antenna ports. The radio base station serves a user equipment in the radio communications network. The radio base station (12) precodes the data transmission signal with a precoder selected from the precoder codebook. The radio base station (12) 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 the user equipment (10).
摘要翻译：本文的实施例涉及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（12）中的方法。无线电基站（12）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素。无线电基站（12）包括预编码器码本，其包括预编码器，用于以多样化的方式向第二数量的天线端口发送信号。无线电基站为无线电通信网络中的用户设备提供服务。无线基站（12）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（12）还通过中和预编码的数据传输信号的方向，然后垂直地引导预编码的数据传输信号，线性地转换预编码的数据传输信号。由此能够对用户设备（10）垂直地调整预编码的数据传输信号。

7. 发明申请

WO2013129984A1 RADIO BASE STATION AND METHOD THEREIN FOR TRANSMITTING A DATA SIGNAL TO A USER EQUIPMENT IN A RADIO COMMUNICATIONS NETWORK 审中-公开
标题翻译：无线电通信网络中的用户设备发送数据信号的无线基站及其方法
公开(公告)号：WO2013129984A1
公开(公告)日：2013-09-06
申请号：PCT/SE2012/050239
申请日：2012-03-02
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , WERNERSSON, Niklas , BERGMAN, Svante , JÖNGREN, George
发明人： WERNERSSON, Niklas , BERGMAN, Svante , JÖNGREN, George
IPC分类号： H04B7/06
CPC分类号： H04B7/0456 , H04B7/0617 , H04B7/0632 , H04B7/0639 , H04B7/0695
摘要： Embodiments herein relate to a method in a radio base station (12) for transmitting a data signal to a user equipment (10) in a radio communications network. The radio base station (12) is connected to an active antenna array of a number of active transmitting antennas and the radio base station (12) serves the user equipment (10) in the radio communications network. Each active transmitting antenna comprises sub elements. The radio base station (12) transforms a precoded data signal using a transformation, which transformation directs signals vertically. Furthermore, the radio base station (12) transmits the transformed data signal over at least one sub element to the user equipment (10). The transmitted data signal is enabled to be directed vertically, and the transformed data signal is limited to be transmitted in a direction within a range of elevation angles.
摘要翻译：本文的实施例涉及用于在无线电通信网络中向用户设备（10）发送数据信号的无线电基站（12）中的方法。无线电基站（12）连接到多个有源发射天线的有源天线阵列，无线电基站（12）服务于无线电通信网络中的用户设备（10）。每个有源发射天线包括子元件。无线电基站（12）使用变换来变换预编码的数据信号，该变换垂直指示信号。此外，无线基站（12）通过至少一个子元件向用户装置（10）发送经变换的数据信号。发送的数据信号能够垂直定向，并且变换的数据信号被限制为在仰角范围内的方向上发送。

8. 发明申请

WO2011159217A1 METHODS PROVIDING PRECODER FEEDBACK USING MULTIPLE PRECODER INDICES AND RELATED COMMUNICATIONS DEVICES AND SYSTEMS 审中-公开
标题翻译：使用多个预编码器指示器和相关通信设备和系统提供预编码器反馈的方法
公开(公告)号：WO2011159217A1
公开(公告)日：2011-12-22
申请号：PCT/SE2010/051451
申请日：2010-12-21
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , JÖNGREN, George , HAMMARWALL, David , BERGMAN, Svante
发明人： JÖNGREN, George , HAMMARWALL, David , BERGMAN, Svante
IPC分类号： H04B7/06
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 (117) to a second communications device (200) based on precoder feedback defining a grid of transmission beams A first precoder index (601 ) may be received from the second communications device (200), and a second precoder index (603) may be received from the second communications device (200). At least one symbol stream (607) 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 (117), and the antenna signals (608) may be transmitted over the multiple antennas (117) to the communications device (200). 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第一通信设备使用多个天线（117）向第二通信设备（200）发送数据。可以从第二通信设备（200）接收第一预编码器索引（601）），并且可以从第二通信设备（200）接收第二预编码器索引（603）。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（607），以生成多个天线（117）中的各个天线元件的天线信号，并且天线信号（608）可以在多个天线（117）到通信设备（200）。还讨论了相关基站和用户设备。

9. 发明申请

WO2012044236A1 METHOD AND ARRANGEMENT IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：无线通信系统中的方法和布置
公开(公告)号：WO2012044236A1
公开(公告)日：2012-04-05
申请号：PCT/SE2011/051144
申请日：2011-09-26
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , HAMMARWALL, David , BERGMAN, Svante , JÖNGREN, George
发明人： HAMMARWALL, David , BERGMAN, Svante , JÖNGREN, George
IPC分类号： 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：本发明涉及用于在无线通信系统中通过多路输入多输出，M1MO，信道进行传输的秩调整的方法和装置。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。

10. 发明申请

WO2013137793A1 INDUCED INCOHERENCY FOR JOINT TRANSMISSION 审中-公开
标题翻译：引起联合传播的责任
公开(公告)号：WO2013137793A1
公开(公告)日：2013-09-19
申请号：PCT/SE2012/050653
申请日：2012-06-15
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , HAMMARWALL, David , BERGMAN, Svante
发明人： HAMMARWALL, David , BERGMAN, Svante
IPC分类号： H04B7/02
CPC分类号： H04B7/024 , H04B7/0626 , H04B7/0676
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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