公开(公告)号：US08750253B2

公开(公告)日：2014-06-10

申请号：US13139817

申请日：2008-12-18

申请人： Sven Oscar Petersson ,  Bo Hagerman

发明人： Sven Oscar Petersson ,  Bo Hagerman

IPC分类号： H04Q7/00 ,  H04B1/56 ,  H04B17/00

CPC分类号： H04B1/56 ,  H04B7/0417 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/086 ,  H04B7/10 ,  H04B17/101

摘要： The present invention relates to a system for wireless communication comprising a first transceiver circuitry (BS) connected to a plurality of virtual antenna ports of an antenna arrangement; each virtual antenna port is a combination of one or more physical antenna ports. The first transceiver circuitry (BS) is configured to: communicate with a second transceiver circuitry (UE) via the antenna ports of the antenna arrangement; receive primary beamshaping information related to a first link (Downlink) between the first transceiver circuitry (BS) and the second transceiver circuitry (UE); determine secondary beamshaping information related to a second link (Uplink) between the second transceiver circuitry (UE) and the first transceiver circuitry (BS); and apply at least one weight vector based on the primary and secondary beamshaping information for subsequent transmission of signals from the first transceiver circuitry (BS) via the plurality of virtual antenna ports of the antenna arrangement.

摘要翻译： 本发明涉及一种用于无线通信的系统，包括连接到天线装置的多个虚拟天线端口的第一收发器电路（BS） 每个虚拟天线端口是一个或多个物理天线端口的组合。 第一收发器电路（BS）被配置为：经由天线装置的天线端口与第二收发器电路（UE）通信; 接收与第一收发器电路（BS）和第二收发器电路（UE）之间的第一链路（下行链路）有关的主波束成形信息; 确定与所述第二收发器电路（UE）和所述第一收发器电路（BS）之间的第二链路（Uplink）有关的次级束成形信息; 并且基于所述主和次级束整形信息应用至少一个权重向量，用于经由所述天线装置的所述多个虚拟天线端口从所述第一收发器电路（BS）随后发送信号。

公开(公告)号：US08682326B2

公开(公告)日：2014-03-25

申请号：US12342510

申请日：2008-12-23

申请人： Bo Hagerman ,  Karl Molnar

发明人： Bo Hagerman ,  Karl Molnar

IPC分类号： H04W36/00

CPC分类号： H04W16/28 ,  H01Q1/246 ,  H01Q3/04 ,  H01Q3/08 ,  H04L1/0026 ,  H04L1/1812 ,  H04W36/00 ,  H04W72/085 ,  H04W72/1231 ,  H04W88/08

摘要： A base station and method are described herein that vertically sweeps an antenna beam within a cell to improve the signal quality at scheduled times for a user terminal located within a coverage area of the cell. In one embodiment, the method improves a signal quality for a user terminal by: (a) vertically sweeping a beam within a cell coverage area to vary a signal quality at scheduled times for the user terminal located within the cell coverage area; and (b) performing one or more scheduling functions while taking into account variations in the vertical sweep of the antenna beam. For instance, the scheduling function(s) can include a link adaptation function, a resource allocation function, a user admittance/dropping function, a handover function, and/or a hybrid automatic repeat request function.

摘要翻译： 这里描述了一种基站和方法，其垂直扫描小区内的天线波束，以便在位于小区的覆盖区域内的用户终端的调度时间改善信号质量。 在一个实施例中，该方法通过以下步骤来改善用户终端的信号质量：（a）垂直扫描小区覆盖区域内的波束，以在位于小区覆盖区域内的用户终端的调度时间改变信号质量; 和（b）在考虑天线波束的垂直扫描的变化的同时执行一个或多个调度功能。 例如，调度功能可以包括链路适配功能，资源分配功能，用户导纳/删除功能，切换功能和/或混合自动重传请求功能。

公开(公告)号：US08675763B2

公开(公告)日：2014-03-18

申请号：US13123673

申请日：2008-10-09

申请人： Ulf Lindgren ,  Bo Hagerman

发明人： Ulf Lindgren ,  Bo Hagerman

IPC分类号： H04B7/02

CPC分类号： H04B7/0691 ,  H04B7/0417 ,  H04B7/0602 ,  H04B7/0639

摘要： The present invention relates to a multi-stream communication system comprising a transmitting node provided with a polyphase antenna and a receiving node provided with an antenna arrangement configured to receive multiple data streams. The polyphase antenna has at least one group of multiple antenna elements, each group having N antenna elements. The transmitting node is also provided with at least one radio chain and a switch for each radio chain arranged to cyclically connect each radio chain to the antenna elements in one of the groups. The switch is configured to operate with a switching frequency fsw. The transmitting node is further configured to transmit M weighted symbols of an uncorrelated signal from each antenna element in each group, the M weighted symbols being less than or equal to N, and the receiving node is further configured to convert the received N data streams into each respective uncorrelated signal.

摘要翻译： 多流通信系统技术领域本发明涉及一种多流通信系统，包括：具有多相天线的发送节点和配置有接收多个数据流的天线配置的接收节点。 多相天线具有至少一组多个天线元件，每组具有N个天线元件。 发射节点还设置有至少一个无线电链和用于每个无线电链的交换机，其被布置为将每个无线电链周期性地连接到组中的一个中的天线元件。 开关配置为以开关频率fsw运行。 发送节点还被配置为从每个组中的每个天线元件发送不相关信号的M个加权符号，M个加权符号小于或等于N，并且接收节点还被配置为将接收到的N个数据流转换成 各自不相关的信号。

公开(公告)号：US20130279461A1

公开(公告)日：2013-10-24

申请号：US13993254

申请日：2010-12-13

申请人： Peter De Bruin ,  Bo Hagerman ,  Sara Landström ,  Arne Simonsson ,  Bogdan Timus

发明人： Peter De Bruin ,  Bo Hagerman ,  Sara Landström ,  Arne Simonsson ,  Bogdan Timus

IPC分类号： H04W72/04

CPC分类号： H04W72/04 ,  H04W16/32 ,  H04W72/0426 ,  H04W92/20

摘要： A method and arrangement for enabling communication of data between a UE and a first base station in a cellular communication network further comprising the second base station, and the second base station is connected to the first base station via a communication interface A scheduling request is received 800 from the first base station. The scheduling request is based on a suggested scheduling which is determined by the first base station, and the suggested scheduling concerns the communication of data. Scheduling information is determined 802 based on the scheduling request, and the scheduling information is transmitted 804 to the UE. By determining a suggested scheduling in a micro base station, but transmitting scheduling information from an overlaying macro base station, local awareness of communication conditions may by applied, and interferences from neighbouring micro base stations may be decreased.

摘要翻译： 还包括第二基站和第二基站的蜂窝通信网络中的UE和第一基站之间的数据通信的方法和装置经由通信接口连接到第一基站。接收到调度请求 800从第一个基站。 调度请求基于由第一基站确定的建议调度，并且所建议的调度涉及数据的通信。 基于调度请求确定802调度信息，向UE发送调度信息804。 通过确定微基站中的建议调度，但是从覆盖的宏基站发送调度信息，可以通过应用对通信状况的局部感知，并且可以减少来自相邻微基站的干扰。

公开(公告)号：US08374607B2

公开(公告)日：2013-02-12

申请号：US11628939

申请日：2004-06-30

申请人： Bo Hagerman ,  Fredrik Ovesjö ,  Björn Gunnar Johannisson ,  Kimmo Hittunen

发明人： Bo Hagerman ,  Fredrik Ovesjö ,  Björn Gunnar Johannisson ,  Kimmo Hittunen

IPC分类号： H04W4/00

CPC分类号： H04W36/18 ,  H04W16/28 ,  H04W36/0083 ,  H04W36/0094 ,  H04W36/165 ,  H04W52/40 ,  H04W72/046

摘要： The technology involves data processing during intra-site handover procedures. At least two directional antennas of a base station receive user data carrying signals originating from a mobile units positioned in an intra-site handover area defined by the overlapping radio coverage of the antennas. The directional antennas performs an initial data signal detection of the received data signals resulting in detected user data, which typically results in a loss of radio performance of the antenna. The detected user data from the directional antennas is then jointly processed to generate processed user data. The performance loss is compensated by providing differential antenna gain of the directional antennas within the handover area. As a result, a similar radio coverage in this area as prior art solutions is obtained but with a less complex antenna-related design.

摘要翻译： 该技术涉及站内切换过程中的数据处理。 基站的至少两个定向天线接收承载来自位于由天线的重叠无线覆盖限定的站内切换区域内的移动单元的信号的用户数据。 定向天线对所接收的数据信号执行初始数据信号检测，从而产生检测到的用户数据，这通常导致天线的无线电性能的损失。 来自定向天线的检测到的用户数据然后被联合处理以产生经处理的用户数据。 通过在切换区域内提供定向天线的差分天线增益来补偿性能损失。 结果，在现有技术解决方案中获得了与该领域相似的无线电覆盖，但是与天线相关的设计不太复杂。

公开(公告)号：US20120282934A1

公开(公告)日：2012-11-08

申请号：US13502939

申请日：2011-05-03

申请人： Arne Simonsson ,  Per Burström ,  Peter De Bruin ,  Bo Hagerman ,  Per Skillermark

发明人： Arne Simonsson ,  Per Burström ,  Peter De Bruin ,  Bo Hagerman ,  Per Skillermark

IPC分类号： H04W16/02

CPC分类号： H04W72/12 ,  H04B7/024 ,  H04W16/06 ,  H04W92/20

摘要： Method and arrangement (600) in a first network node (120-1), serving a first cell (130-1), for forming a coordination group for coordinating multipoint wireless communication. The method comprising determining (502) interference within the first cell (130-1). Also, the method comprises identifying (503) a second network node (120-2), which is either transmitting radio signals causing the interference, serving a user equipment (110-1), which transmits radio signals causing the interference, or being the intended recipient of radio signals causing the interference. Additionally, the method comprises transmitting (504) a token to the identified second network node (120-2), inviting it to coordinate the wireless communication. Furthermore, in addition, if acceptance is received, the method comprises forming (505) a coordination group together with the second network node (120-2), and coordinate the wireless communication.Further, a method and arrangement (800) in a second network node (120-2) is presented.

摘要翻译： 服务于第一小区（130-1）的第一网络节点（120-1）中的方法和装置（600），用于形成用于协调多点无线通信的协调组。 该方法包括确定（502）第一小区（130-1）内的干扰。 此外，该方法包括：识别（503）发送导致干扰的无线电信号的第二网络节点（120-2），服务于发送引起干扰的无线电信号的用户设备（110-1），或者是 预期接收到无线电信号造成干扰。 另外，该方法包括向识别的第二网络节点（120-2）发送（504）令牌，邀请它协调无线通信。 此外，另外，如果接收到接受，则该方法包括与第二网络节点（120-2）一起形成（505）协调组，并协调无线通信。 此外，呈现第二网络节点（120-2）中的方法和布置（800）。

公开(公告)号：US20120252369A1

公开(公告)日：2012-10-04

申请号：US13515862

申请日：2009-12-16

申请人： Henrik Asplund ,  Bo Hagerman

发明人： Henrik Asplund ,  Bo Hagerman

IPC分类号： H04B17/00 ,  H04B7/24

CPC分类号： H04B7/022 ,  H04B7/10

摘要： An object of the present invention is to enable coordination of VP/HP polarizations generated by cross-polarized, i.e. orthogonally polarized antenna configurations, of one radio device with another radio device. The object is achieved by a method in a first eNB (100c) of coordinating polarizations of the first eNB with polarizations of an additional eNB (100a). The polarizations are generated by an antenna configuration comprising at least two orthogonally polarized antennas. The first and additional eNB (100c, 100a) communicate wirelessly with a UE (150a). The method comprises the steps of establishing a first amplitude and/or phase offset of the antenna configuration generating a vertical or horizontal polarization, and a second amplitude and/or phase offset of the antenna configuration generating a polarization orthogonal to said polarization generated by the first amplitude and/or phase offset, defining the polarization generated by the first amplitude and/or phase offset to be vertical and the polarization generated by the second amplitude and/or phase offset to be horizontal, determining a polarization of the UE, and coordinating the defined polarizations with polarizations of the additional eNB based on the determined UE polarization.

摘要翻译： 本发明的一个目的是使一个无线电设备与另一个无线电设备的交叉极化（即正交极化的天线配置）产生的VP / HP偏振协调。 该目的通过第一eNB（100c）中的方法来实现，该方法使第一eNB的极化与附加eNB（100a）的极化协调。 极化由包括至少两个正交极化天线的天线配置产生。 第一和附加eNB（100c，100a）与UE（150a）进行无线通信。 该方法包括以下步骤：建立产生垂直或水平极化的天线配置的第一幅度和/或相位偏移，以及天线配置的第二幅度和/或相位偏移，产生与由第一 幅度和/或相位偏移，将由第一幅度和/或相位偏移产生的偏振定义为垂直的，由第二幅度和/或相位偏移产生的偏振为水平，确定UE的极化，并协调 基于所确定的UE极化，具有附加eNB的极化的定义的极化。

公开(公告)号：US07970348B2

公开(公告)日：2011-06-28

申请号：US10496644

申请日：2002-11-01

申请人： Bo Hagerman ,  Bjorn Gunnar Johannison

发明人： Bo Hagerman ,  Bjorn Gunnar Johannison

IPC分类号： H04W4/00

CPC分类号： H04B7/0691 ,  H04B7/0617 ,  H04B7/10 ,  H04W16/28

摘要： A solution is disclosed for minimizing the amount of hardware and hardware accuracy requirements to simultaneously give the feature of both cell and narrow beams transmission, while enabling methods for capacity/coverage increase. The main property utilized by the present invention for maintaining cell-coverage pattern control, when radiating information in two simultaneous beams, is to use orthogonal polarization states for the two beams. The two orthogonal polarization states may for instance constitute linear polarization slanted at +45° and −45°, respectively. The dedicated broadcast transmission needs to be conveyed defining the total cell coverage area. The total cell coverage area is matched by the coverage of the two fixed narrow-beams. The broadcast signal transmission is divided into two signal streams/paths, one for each of the two fixed narrow-beams (no coherency requirements existing between the two parallel signal streams/paths). The two broadcast signal streams/paths are combined by means of combiner units with the dedicated combined signals from all fixed narrow-beam selected users in each of the two branches. The signals to the two antennas are then transmitted having an orthogonal polarization.

摘要翻译： 公开了一种解决方案，用于最小化硬件和硬件精度要求的量，以同时提供小区和窄波束传输的特征，同时实现容量/覆盖范围的增加。 本发明用于维持小区覆盖模式控制的主要特征是在两个同时波束中发射信息时，是为两个波束使用正交偏振态。 两个正交偏振态可以例如分别构成在+ 45°和-45°处倾斜的线偏振。 需要传达专门的广播传输来定义总的小区覆盖区域。 整个小区覆盖区域与两个固定窄波束的覆盖范围相匹配。 广播信号传输被分成两个信号流/路径，一个用于两个固定窄波束中的每一个（不存在于两个并行信号流/路径之间的一致性要求）。 两个广播信号流/路径通过组合器单元与来自两个分支中的每一个中的所有固定窄波束选择用户的专用组合信号组合。 然后发射具有正交极化的对两个天线的信号。

公开(公告)号：US07856243B2

公开(公告)日：2010-12-21

申请号：US11951113

申请日：2007-12-05

申请人： Fredrik Gunnarsson ,  Bo Hagerman

发明人： Fredrik Gunnarsson ,  Bo Hagerman

IPC分类号： H04B7/00 ,  H04Q7/20

CPC分类号： H04W52/241 ,  H04B1/7107 ,  H04B17/336 ,  H04B17/345 ,  H04B17/373 ,  H04B2201/709727 ,  H04W52/243

摘要： A signal power associated with a signal received in a current time period is determined. The determined signal power is combined with a predicted effective interference to form a predicted signal-to-interference indicator. The predicted signal-to-interference indicator is compared to a target signal-to-interference indicator. One or more transmit power control commands are generated based on the comparison. In one example embodiment, the predicted effective interference is based on an effective interference estimated for a previous time period. In another example embodiment, the predicted effective interference is based on interference contributions estimated in a current time period and a predicted interference cancellation efficiency. The predicted interference cancellation efficiency is based on the estimated interference cancellation efficiency for a previous time period. The technology is particularly useful in receivers that use interference cancellation and achieves excellent transmit power control performance both in terms of accuracy and speed.

摘要翻译： 确定与当前时间段中接收的信号相关联的信号功率。 所确定的信号功率与预测的有效干扰相结合以形成预测的信号干扰指示符。 将预测的信号与干扰指示符与目标信号到干扰指示符进行比较。 基于比较生成一个或多个发射功率控制命令。 在一个示例实施例中，预测的有效干扰基于在前一时间段估计的有效干扰。 在另一个示例实施例中，预测的有效干扰基于在当前时间段中估计的干扰贡献和预测的干扰消除效率。 预测的干扰消除效率基于前一时间段的估计干扰消除效率。 该技术在使用干扰消除的接收机中特别有用，并且在精度和速度方面都能实现出色的发射功率控制性能。

公开(公告)号：US20100061344A1

公开(公告)日：2010-03-11

申请号：US12441484

申请日：2007-09-06

申请人： Bo Göransson ,  Bo Hagerman

发明人： Bo Göransson ,  Bo Hagerman

IPC分类号： H04B7/216

CPC分类号： H04B7/0697 ,  H04B1/707 ,  H04B2001/70724

摘要： The present invention relates to a transmit unit, a control unit and a method in a transmit unit comprising at least two antennas for transmitting signals relating to a plurality of radio channels. The transmit unit transmit signals relating to a first subset of channels from the first antenna and pilot signals from the first antenna for use a reference for the first subset of channels. The transmit unit is further arranged to transmit signals relating to a second subset of channels from the second antenna using single antenna transmission. The transmit unit also transmits pilot signals on a second type of pilot channel such as the S-CPICH, different from the first type of pilot channel, from the second antenna for use as a reference for the second subset of channels, wherein the first and second type of pilot channels are substantially covering the same area.

摘要翻译： 本发明涉及发送单元中的发送单元，控制单元和方法，该发送单元包括用于发送与多个无线电信道有关的信号的至少两个天线。 发射单元从第一天线发射与第一子信道有关的信号和来自第一天线的导频信号，以用于第一子信道子集的参考。 发射单元还被布置成使用单天线传输从第二天线发射与第二子信道有关的信号。 发射单元还从第二天线在诸如与第一类型的导频信道不同的第二类型的导频信道（例如S-CPICH）上发送导频信号，以用作第二子信道子集的参考，其中，第一和第 第二类型的导频信道基本覆盖相同的区域。