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：US20120201319A1

公开(公告)日：2012-08-09

申请号：US13020205

申请日：2011-02-03

申请人： Henrik Asplund ,  Andres Reial ,  Bo Hagerman ,  Fredrik Ovesjö

发明人： Henrik Asplund ,  Andres Reial ,  Bo Hagerman ,  Fredrik Ovesjö

IPC分类号： H04L1/02

CPC分类号： H04B7/0469 ,  H04B7/0413 ,  H04B7/0473 ,  H04B7/10 ,  H04L1/009 ,  H04L1/0668

摘要： Controlling the polarization state of signals to be transmitted from a MIMO capable radio base station node to a plurality of user equipment, which radio base station node comprises a precoder unit connecting a first and a second virtual antenna port to a respective first and second transmit antenna port, by the steps of controlling (S10) a relative phase between transmitted signals from the first and second transmit antenna port to provide a predetermined pair of orthogonal polarization states for signals transmitted on the first and second virtual antenna ports, and interchanging (S20) the polarization states of the first and second virtual antenna ports, to provide transmitted polarized signals with alternating polarization states.

摘要翻译： 控制从MIMO能力的无线基站节点发送到多个用户设备的信号的偏振状态，该无线电基站节点包括将第一和第二虚拟天线端口连接到相应的第一和第二发射天线的预编码器单元 端口，通过控制（S10）来自第一和第二发送天线端口的发送信号之间的相对相位的步骤，为在第一和第二虚拟天线端口上发送的信号提供预定的正交极化状态对，并进行交换（S20） 第一和第二虚拟天线端口的极化状态，以提供具有交替偏振态的透射偏振信号。

公开(公告)号：US06650910B1

公开(公告)日：2003-11-18

申请号：US09196117

申请日：1998-11-20

申请人： Sara Mazur ,  Bo Hagerman ,  Ulf Forssén ,  Sören Andersson ,  Fredrik Ovesjö

发明人： Sara Mazur ,  Bo Hagerman ,  Ulf Forssén ,  Sören Andersson ,  Fredrik Ovesjö

IPC分类号： H04Q720

CPC分类号： H04B7/086 ,  H04B7/0894 ,  H04B7/10

摘要： The present invention relates to radio systems and, more particularly, to a method and apparatus for receiving radio signals with the aid of beams generated by antenna assemblies. For each of the beams in a first of the antenna assemblies there is a beam in the second of the antenna assemblies that covers the same space area. Signals received by the second are delayed relative to signals received by the first of the antenna assemblies. Then signals from the first antenna assembly are combined with signals from the second of the antenna assemblies. The combined signals derive from beams covering the same space area. Each combined signal is then radio received in a joint radio receiver. A DOA-estimation can be calculated on the basis of radio received signals derived from all beams.

摘要翻译： 本发明涉及无线电系统，更具体地，涉及一种借助天线组件所产生的波束来接收无线电信号的方法和装置。 对于第一天线组件中的每个梁，在天线组件中的第二个天线组件中存在覆盖相同空间区域的梁。 由第二个接收的信号相对于由第一天线组件接收的信号而被延迟。 然后来自第一天线组件的信号与来自第二天线组件的信号组合。 组合信号源于覆盖相同空间区域的光束。 然后，每个组合信号在联合无线电接收机中被无线电接收。 可以基于从所有波束导出的无线电接收信号来计算DOA估计。

公开(公告)号：US09270359B2

公开(公告)日：2016-02-23

申请号：US13020205

申请日：2011-02-03

申请人： Henrik Asplund ,  Andres Reial ,  Bo Hagerman ,  Fredrik Ovesjö

发明人： Henrik Asplund ,  Andres Reial ,  Bo Hagerman ,  Fredrik Ovesjö

IPC分类号： H04B7/02 ,  H04L1/02 ,  H04B7/10 ,  H04B7/04

CPC分类号： H04B7/0469 ,  H04B7/0413 ,  H04B7/0473 ,  H04B7/10 ,  H04L1/009 ,  H04L1/0668

摘要： Controlling the polarization state of signals to be transmitted from a MIMO capable radio base station node to a plurality of user equipment, which radio base station node comprises a precoder unit connecting a first and a second virtual antenna port to a respective first and second transmit antenna port, by the steps of controlling (S10) a relative phase between transmitted signals from the first and second transmit antenna port to provide a predetermined pair of orthogonal polarization states for signals transmitted on the first and second virtual antenna ports, and interchanging (S20) the polarization states of the first and second virtual antenna ports, to provide transmitted polarized signals with alternating polarization states.

摘要翻译： 控制从MIMO能力的无线基站节点发送到多个用户设备的信号的偏振状态，该无线电基站节点包括将第一和第二虚拟天线端口连接到相应的第一和第二发射天线的预编码器单元 端口，通过控制（S10）来自第一和第二发送天线端口的发送信号之间的相对相位的步骤，为在第一和第二虚拟天线端口上发送的信号提供预定的正交极化状态对，并进行交换（S20） 第一和第二虚拟天线端口的极化状态，以提供具有交替偏振态的透射偏振信号。

公开(公告)号：US08891463B2

公开(公告)日：2014-11-18

申请号：US13130487

申请日：2008-12-18

申请人： Samuel Axelsson ,  Fredrik Ovesjö ,  Anders Jonsson ,  Markus Ringström

发明人： Samuel Axelsson ,  Fredrik Ovesjö ,  Anders Jonsson ,  Markus Ringström

IPC分类号： H04W4/02 ,  H04L1/20 ,  H04W52/34 ,  H04W52/12 ,  H04W52/28 ,  H04L1/00 ,  H04W72/12

CPC分类号： H04W52/346 ,  H04L1/0026 ,  H04L1/0033 ,  H04L1/20 ,  H04W52/12 ,  H04W52/125 ,  H04W52/286 ,  H04W72/1231

摘要： A radio base station (1) for use in a wireless communication system comprises—a scheduling unit (9) arranged to schedule at least one user terminal to which to transmit in each subframe and—a power allocation unit (11) arranged to allocate a first amount of power to be used for the at least one user terminal in each subframe, a transmitter (5) arranged to transmit a transport block in a subframe to a number of user terminals (3) in the wireless communication system in accordance with said scheduling and power allocation. The radio base station further comprises—a correction unit (5) arranged to determine, after scheduling has been performed for a chosen subframe, if there is excess power in the chosen subframe that has not been allocated to any user terminal and if so allocate at least a first part of the excess power to at least one user terminal scheduled in the subframe. The excess power is used when transmitting in the subframe.

摘要翻译： 一种在无线通信系统中使用的无线基站（1）包括：调度单元（9），其被配置为调度在每个子帧中要发送的至少一个用户终端;以及功率分配单元（11），其被配置为 用于每个子帧中的至少一个用户终端的第一数量的功率;发射机（5），被配置为根据所述的无线通信系统向无线通信系统中的多个用户终端（3）发送子帧中的传输块 调度和功率分配。 无线电基站还包括校正单元（5），该校正单元（5）被设置为：在对所选择的子帧执行调度之后，如果在所选择的子帧中是否存在尚未分配给任何用户终端的多余功率， 对在子帧中调度的至少一个用户终端的剩余功率的至少第一部分。 在子帧中发送时使用多余的功率。

公开(公告)号：US20130142174A1

公开(公告)日：2013-06-06

申请号：US13202670

申请日：2011-08-19

申请人： Erik Larsson ,  Johan Bergman ,  Bo Göransson ,  Johan Hultell ,  Niklas Johansson ,  Fredrik Ovesjö

发明人： Erik Larsson ,  Johan Bergman ,  Bo Göransson ,  Johan Hultell ,  Niklas Johansson ,  Fredrik Ovesjö

IPC分类号： H04W72/04 ,  H04W52/04

CPC分类号： H04W72/04 ,  H04B7/0434 ,  H04B7/0619 ,  H04W52/04 ,  H04W52/146 ,  H04W52/54 ,  H04W72/042

摘要： A NodeB for a WCDMA system, arranged to transmit instructions to a UE for the UE's uplink transmissions. The NodeB is arranged to transmit the instructions on a dedicated downlink physical channel which the NodeB is arranged to use for transmissions to a plurality of UEs and which comprises a plurality of radio frames, where each radio frame comprises a number of slots and each slot comprises a number of WCDMA symbols. The instructions to the UE comprise Transmit Power Commands as well as other instructions to the UE for the UE's uplink transmissions. The NodeB is arranged to use a first WCDMA slot format for the TPC commands to the UE and a second WCDMA slot format for the other instructions to the UE.

摘要翻译： 用于WCDMA系统的节点B，被布置为向UE发送用于UE的上行链路传输的指令。 节点B被布置为在专用下行链路物理信道上发送指令，该专用下行链路物理信道被布置成用于向多个UE的传输，并且包括多个无线电帧，其中每个无线电帧包括多个时隙，并且每个时隙包括 一些WCDMA符号。 对UE的指令包括发送功率命令以及UE向UE的上行链路传输的其他指令。 节点B被安排为向UE使用用于TPC命令的第一WCDMA时隙格式以及用于向UE的其他指令的第二WCDMA时隙格式。

公开(公告)号：US20110228740A1

公开(公告)日：2011-09-22

申请号：US13130487

申请日：2008-12-18

申请人： Samuel Axelsson ,  Fredrik Ovesjö ,  Anders Jonsson ,  Markus Ringström

发明人： Samuel Axelsson ,  Fredrik Ovesjö ,  Anders Jonsson ,  Markus Ringström

IPC分类号： H04W72/04 ,  H04W52/04

CPC分类号： H04W52/346 ,  H04L1/0026 ,  H04L1/0033 ,  H04L1/20 ,  H04W52/12 ,  H04W52/125 ,  H04W52/286 ,  H04W72/1231

摘要： A radio base station (1) for use in a wireless communication system comprises—a scheduling unit (9) arranged to schedule at least one user terminal to which to transmit in each subframe and—a power allocation unit (11) arranged to allocate a first amount of power to be used for the at least one user terminal in each subframe, a transmitter (5) arranged to transmit a transport block in a subframe to a number of user terminals (3) in the wireless” communication system in accordance with said scheduling and power allocation. The radio base station further comprises—a correction unit (15) arranged to determine, after scheduling has been performed for a chosen subframe, if there is excess power in the chosen subframe that has not been allocated to any user terminal and if so allocate at least a first part of the excess power to at least one user terminal scheduled in the subframe. The excess power is used when transmitting in the subframe.

摘要翻译： 一种在无线通信系统中使用的无线基站（1）包括：调度单元（9），其被配置为调度在每个子帧中要发送的至少一个用户终端;以及功率分配单元（11），其被配置为 用于每个子帧中的至少一个用户终端的第一数量的功率;发射机（5），其被布置为在无线“通信系统中的多个用户终端（3）中发送子帧中的传输块 表示调度和功率分配。 无线电基站还包括 - 校正单元（15），其被设置为：在对所选择的子帧执行了调度之后，确定所选择的子帧中是否存在尚未分配给任何用户终端的多余功率，以及如果分配给 对在子帧中调度的至少一个用户终端的剩余功率的至少第一部分。 在子帧中发送时使用多余的功率。

公开(公告)号：US20120108186A1

公开(公告)日：2012-05-03

申请号：US13382272

申请日：2009-08-31

申请人： Bo Göransson ,  Sven Petersson ,  Martin Johansson ,  Fredrik Ovesjö

发明人： Bo Göransson ,  Sven Petersson ,  Martin Johansson ,  Fredrik Ovesjö

IPC分类号： H04W4/00 ,  H04B7/02

CPC分类号： H04B7/10 ,  H04B7/0615 ,  H04B7/0669 ,  H04B7/0689

摘要： A transmitter for transmitting data in a cellular radio system is provided. The transmitter transmits data to User Equipment(s) using multiple transmitting antennas, using at least two polarization formers generating orthogonal polarizations of an input data stream. The transmitter further comprises a transmitter diversity arrangement adapted to receive input data to be transmitted to the User Equipment(s), where the transmitter diversity arrangement is connected to the input terminals of the polarization formers. By combining transmitter diversity with polarization former weights, orthogonality between multiple, in particular 4, transmitting antennas can be obtained.

摘要翻译： 提供了一种用于在蜂窝无线电系统中发送数据的发射机。 发射机使用至少两个产生输入数据流的正交极化的偏振成形器，使用多个发射天线向用户设备发射数据。 发射机还包括发射机分集装置，其适于接收要发射到用户设备的输入数据，其中发射机分集装置连接到偏振形成器的输入端。 通过将发射机分集与极化前馈权重组合，可以获得多个，特别是4个发射天线之间的正交性。

公开(公告)号：US06542484B1

公开(公告)日：2003-04-01

申请号：US09079355

申请日：1998-05-15

申请人： Fredrik Ovesjö ,  Jonas Karlsson ,  Sara Mazur ,  Fredric Kronestedt

发明人： Fredrik Ovesjö ,  Jonas Karlsson ,  Sara Mazur ,  Fredric Kronestedt

IPC分类号： H04B7216

CPC分类号： H04W16/00 ,  H04J13/004 ,  H04J13/18 ,  H04W16/24

摘要： Multiple code sets are introduced in the downlink of a CDMA system to allow for more connections in each cell. The codes are then allocated to different users taking into account the interference therebetween. The interference depends on the antenna gains, transmission powers used and cross-correlations between codes. By estimating these parameters the interference can be minimized in the code allocation process. Since the allocation of codes and code sets to geographical areas within a cell may change over time, code handoff is supported.

摘要翻译： 在CDMA系统的下行链路中引入多个码集，以允许每个小区中的更多连接。 然后将代码分配给不同的用户，同时考虑它们之间的干扰。 干扰取决于天线增益，使用的发射功率和码之间的互相关。 通过估计这些参数，可以在代码分配过程中最小化干扰。 由于代码和代码集分配到单元内的地理区域可能会随时间而变化，因此支持代码切换。

公开(公告)号：US08665994B2

公开(公告)日：2014-03-04

申请号：US13389480

申请日：2009-12-15

申请人： Henrik Asplund ,  Bo Göransson ,  Fredrik Ovesjö ,  Markus Ringström

发明人： Henrik Asplund ,  Bo Göransson ,  Fredrik Ovesjö ,  Markus Ringström

IPC分类号： H04L27/00

CPC分类号： H04L1/06 ,  H04B7/0417 ,  H04B7/0469 ,  H04B7/0634 ,  H04B7/10

摘要： The invention relates to the technical field of radio communications, and in particular to an antenna device for a radio base station, and a method for precoding data in a Multiple-Input Multiple-Output (MIMO) system. Embodiments of the invention disclose a secondary precoder 24 in series with a multiple-input multiple-output precoder 22. The secondary precoder 24 has a plurality of inputs 34, 36 and a plurality of outputs 38, 40. The second plurality of inputs being in communication with each plurality of outputs 38, 40 such that one or more signals input to a respective one or more of the second plurality of inputs 34, 36 provides a substantially equal power of signals at the second plurality of outputs 38, 40.

摘要翻译： 本发明涉及无线电通信的技术领域，特别涉及一种用于无线电基站的天线装置，以及用于在多输入多输出（MIMO）系统中预编码数据的方法。 本发明的实施例公开了与多输入多输出预编码器22串联的次级预编码器24.次级预编码器24具有多个输入端34,36和多个输出端38,40。第二多个输入端 与每个多个输出端38,40进行通信，使得输入到第二多个输入端34,36中的相应一个或多个的一个或多个信号在第二多个输出端38,40处提供基本相等的信号功率。