公开(公告)号：US20060040618A1

公开(公告)日：2006-02-23

申请号：US11204026

申请日：2005-08-16

申请人： Volker Braun ,  Cornelis Hoek ,  Stefan Russ

发明人： Volker Braun ,  Cornelis Hoek ,  Stefan Russ

IPC分类号： H04B7/14

CPC分类号： H04B7/0634 ,  H04B7/0656

摘要： The invention refers to a mobile radio communication system (1) for downlink transmission and to a method for transmitting a signal (s) across at least two downlink paths (5, 6) of a multiple antenna (3, 4) mobile radio communication system (1). The system (1) comprises: a base station (2) comprising a plurality of antennas (3, 4); at least one mobile user equipment (8); at least two downlink paths (5, 6) across at least two of the antennas (3, 4) for transmitting a signal (s) from the base station (2) to the at least one user equipment (8), each downlink path (5, 6) comprising a complex channel coefficient (h1, h2); and a feedback path (9) for returning information on at least one complex weight (w) from the user equipment (8) to the base station (2), the at least one complex weight (w) being used for multiplying the signal (s) which is transmitted across at least two of the downlink paths (6). In order to enhance the tolerance of the system (1) against transmission errors (11) on the feedback path (9) it is suggested that the antennas (3, 4) of the base station (2) are disposed in such a distance (a) to one another that the channels of the antennas (3, 4) are correlated. It is further suggested that error detection mechanisms for detecting transmission errors (11) are incorporated in the feedback path (9). Further, it is suggested that error correction mechanisms for correcting transmission errors (11) are incorporated in the feedback path (9). Finally, it is suggested that filter mechanisms (19, 20) are incorporated in the user equipment (8) and in the base station (2).

公开(公告)号：US20060276229A1

公开(公告)日：2006-12-07

申请号：US11441078

申请日：2006-05-26

申请人： Volker Braun ,  Cornelis Hoek ,  Dietrich Zeller ,  Stefan Russ

发明人： Volker Braun ,  Cornelis Hoek ,  Dietrich Zeller ,  Stefan Russ

IPC分类号： H04M1/00

CPC分类号： H04W16/28

摘要： A method for providing a static beam forming in a wireless communication system using an antenna arrangement of a base station which shapes at least one fixed beams, whereby the antenna arrangement covers at least two cells, each cell being covered by at least two beams. The at least two beams covering a cell use the same scrambling code and the same phase reference, whereby the base station autonomously decides which of the at least two fixed beams covering a cell should service a channel.

摘要翻译： 一种用于使用形成至少一个固定光束的基站的天线装置在无线通信系统中提供静态波束形成的方法，由此天线装置覆盖至少两个小区，每个小区被至少两个波束覆盖。 覆盖小区的至少两个波束使用相同的扰码和相同的相位参考，由此基站自主地确定覆盖小区的至少两个固定波束中的哪一个应该为信道服务。

公开(公告)号：US07890114B2

公开(公告)日：2011-02-15

申请号：US10663772

申请日：2003-09-17

申请人： Volker Braun ,  Cornelis Hoek

发明人： Volker Braun ,  Cornelis Hoek

IPC分类号： H04W72/00

CPC分类号： H04B7/0615

摘要： The present invention relates to a method of sending first and second signals to a plurality of user equipments, the method comprising the steps of providing of a dedicated channel for each one of the plurality of user equipments, providing of a code-multiplexed shared channel for the plurality of user equipments, assigning of an antenna of a set of antennas to each one of the user equipments, sending of one of the first signals to one of the plurality of user equipments on one of the dedicated channels on a carrier frequency by applying transmit diversity, sending of one of the second signals to one of the plurality of user equipments on the code-multiplexed shared channel on the carrier frequency by applying multi-user diversity.

摘要翻译： 本发明涉及向多个用户设备发送第一和第二信号的方法，所述方法包括以下步骤：为多个用户设备中的每个用户设备提供专用信道，为多个用户设备提供码复用的共享信道 所述多个用户设备，向所述用户设备中的每一个分配一组天线的天线，通过应用将所述第一信号中的一个信号发送到所述专用信道之一上的所述多个用户设备之一 发送分集，通过应用多用户分集，在载波频率上的码复用共享信道上将第二信号中的一个发送到多个用户设备之一。

公开(公告)号：US20050037799A1

公开(公告)日：2005-02-17

申请号：US10898997

申请日：2004-07-27

申请人： Volker Braun ,  Dietrich Zeller ,  Cornelis Hoek

发明人： Volker Braun ,  Dietrich Zeller ,  Cornelis Hoek

IPC分类号： H04B7/26 ,  H04W16/28 ,  H04W48/20 ,  H04W72/08 ,  H04Q7/20 ,  H04B7/00

CPC分类号： H04W16/28 ,  H04W24/10 ,  H04W48/16 ,  H04W48/20 ,  H04W72/02

摘要： The present invention relates to a communication method in a wireless cellular telecommunication system comprising at least one base station having a beam forming capability, the method comprising the steps of receiving at least a first pilot signal being assigned to a first beam and a second pilot signal being assigned to a second beam by a user equipment, measuring the signal strengths of the at least first and second pilot signals, selecting one of the at least first and second beams having the strongest pilot signal, signalling of the beam selection to the base station and switching off data channels to the user equipment of the beams which have not been selected by the user equipment.

摘要翻译： 本发明涉及一种无线蜂窝电信系统中的通信方法，包括至少一个具有波束形成能力的基站，所述方法包括以下步骤：接收分配给第一波束的第一导频信号和第二导频信号 由用户设备分配给第二波束，测量所述至少第一和第二导频信号的信号强度，选择具有最强导频信号的至少第一和第二波束中的一个，向基站发送波束选择的信令 并且将数据信道切换到未被用户设备选择的波束的用户设备。

公开(公告)号：US20050042988A1

公开(公告)日：2005-02-24

申请号：US10900131

申请日：2004-07-28

申请人： Conelis Hoek ,  Stefan Russ ,  Volker Braun

发明人： Conelis Hoek ,  Stefan Russ ,  Volker Braun

IPC分类号： H04B7/06 ,  H04L1/00 ,  H04L1/02 ,  H04L1/06 ,  H04B1/00 ,  H04B1/02 ,  H04B7/00

CPC分类号： H04B7/0634 ,  H04B7/0669 ,  H04L1/0026 ,  H04L1/0625

摘要： A transmitting diversity system for wireless transmission of information to a receiver station comprising antenna means composed of a plurality of antenna groups, and each group consisting of a plurality of antennas; receiving means for receiving feedback information from the receiver station using a feedback channel for intra antenna group control; control means for controlling a phase and/or amplitude of a signal transmitted by the antenna means based on said feedback information; and an open-loop transmission diversity encoder for encoding of the signal to be transmitted to the receiver station by every antenna group. It also relates to a method for transmitting a wireless signal to a receiver station by means of a transmitting diversity system having at least four antennas, the antennas arranged in groups; and to a base station and a mobile station comprising such a transmitting diversity system.

摘要翻译： 一种发射分集系统，用于将信息无线传输到接收机站，所述接收机站包括由多个天线组组成的天线装置，以及由多个天线组成的每个组; 接收装置，用于使用用于帧内天线组控制的反馈信道从所述接收机站接收反馈信息; 控制装置，用于基于所述反馈信息控制由天线装置发送的信号的相位和/或幅度; 以及用于由每个天线组对要发送到接收机站的信号进行编码的开环发射分集编码器。 它还涉及一种用于通过具有至少四个天线的发射分集系统向接收机站发送无线信号的方法，所述天线以组为单位布置; 以及包括这种发送分集系统的基站和移动台。

公开(公告)号：US09647805B2

公开(公告)日：2017-05-09

申请号：US14234198

申请日：2012-07-06

申请人： Christian Gerlach ,  Volker Braun ,  Andreas Weber ,  Bozo Cesar ,  Oliver Stanze

发明人： Christian Gerlach ,  Volker Braun ,  Andreas Weber ,  Bozo Cesar ,  Oliver Stanze

IPC分类号： H04L5/00 ,  H04W72/04 ,  H04B7/024 ,  H04B7/0408 ,  H04B7/06 ,  H04W92/20

CPC分类号： H04L5/0032 ,  H04B7/024 ,  H04B7/0408 ,  H04B7/0617 ,  H04B7/0632 ,  H04L5/0035 ,  H04W72/042 ,  H04W72/0426 ,  H04W72/046 ,  H04W92/20

摘要： The invention concerns a method for beam coordination between a first base station (M1) and a second base station (P1), wherein interfering beams (B2-B4) transmitted from the first base station (M1) are determined based on measured reference signals, dependent on a ranking of interfering beams (B2-B4) which shall be restricted in use, a restriction of a use of radio resources in the first base station (M1) in at least one ranked interfering beam (B3) is performed, and user terminals (UE1, UE2) served by the second base station (P1) are scheduled on radio resources which are restricted in use in the first base station (M1) in said at least one ranked interfering beam (B3), a base station and a user terminal therefor.

公开(公告)号：US07099419B2

公开(公告)日：2006-08-29

申请号：US10217425

申请日：2002-08-14

申请人： Volker Braun

发明人： Volker Braun

IPC分类号： H04B1/10

CPC分类号： H04L25/0212 ,  H04B7/084 ,  H04B7/0891 ,  H04L7/0058 ,  H04L25/03006 ,  H04L2025/03796

摘要： In many telecommunication systems, message signals which include a predefined sample bit sequence (training sequence) are transmitted, to improve the signal processing in the receiver, particularly the equalization. For this purpose, on the basis of the sample bit sequence, the channel pulse response is estimated within an iterative method. Extending the sample bit sequence by those bits which result from the reconstruction of the transmitted signal is known. It is here proposed that the equalization stage is synchronized to the received signal, by using at least the second channel pulse response which is estimated using the extended sample bit sequence. For this purpose, the receiver includes suitable synchronization means. In this way, it is achieved that the equalization is precisely adapted to the temporal course of the channel pulse response, so that the equalization of the received signal can be significantly improved. In tests, improvements to the signal-to-noise ratio of about 0.5 dB were achieved. Preferably, for the iterative channel estimate, the extended sample bit sequence is divided into two or more parts in the case of rapid channel changes such as can occur in mobile communication systems.

公开(公告)号：US20060246939A1

公开(公告)日：2006-11-02

申请号：US11405635

申请日：2006-04-18

申请人： Dietrich Zeller ,  Hajo Bakker ,  Stephan Kaminski ,  Klaus Keil ,  Volker Braun

发明人： Dietrich Zeller ,  Hajo Bakker ,  Stephan Kaminski ,  Klaus Keil ,  Volker Braun

IPC分类号： H04B7/00 ,  H04Q7/20

CPC分类号： H04W52/367 ,  H04W52/52

摘要： The invention relates to wireless communication networks, and to the way in which communication devices choose their transmission power when communicating with each other. More specifically, the invention relates to a method of controlling the transmission power of a first communication device in a wireless communications network based on the UMTS standard, the first communication device having established a HSDPA connection to a second communication device, whereby the absolute value of the difference between the HSDPA transmission power in a first transmission time interval (tti1) and the HSDPA transmission power in a subsequent second transmission time interval (tti2) is chosen to be smaller than a predetermined value (v). Furthermore, the invention relates to a node B which can carry out the method mentioned above, and power control means associated with said node B.

摘要翻译： 本发明涉及无线通信网络，以及通信设备在彼此通信时选择其传输功率的方式。 更具体地，本发明涉及一种基于UMTS标准控制无线通信网络中的第一通信设备的发送功率的方法，所述第一通信设备已经建立了与第二通信设备的HSDPA连接，从而绝对值 在第一传输时间间隔（tti1）中的HSDPA传输功率与随后的第二传输时间间隔（tti2）中的HSDPA传输功率之间的差被选择为小于预定值（v）。 此外，本发明涉及可以执行上述方法的节点B和与所述节点B相关联的功率控制装置。

公开(公告)号：US20060057965A1

公开(公告)日：2006-03-16

申请号：US11192285

申请日：2005-07-29

申请人： Volker Braun ,  Dietrich Zeller ,  Li Dunlop

发明人： Volker Braun ,  Dietrich Zeller ,  Li Dunlop

IPC分类号： H04B17/00

CPC分类号： H04W36/30

摘要： The present invention provides a method of estimating a channel quality of a wireless data transmission channel on the basis of channel quality indicators. By means of estimating the channel quality an accurate and momentary channel quality of a data transmission channel can be obtained on the basis of non-momentary CQIs that may be subject to measurement inaccuracies, delay or that may feature unacceptable quality due to e.g. high velocity movement of a mobile station. The invention provides determination of the quality and reliability of an obtained channel quality indicator and to select and to successively apply one or a plurality of various estimation procedures in order to determine an accurate and momentary channel quality indicator. Moreover, by making use of an iterative calibration procedure a CQI is determined such that a systematic offset between a defined transmission quality measure and an actually measured transmission quality can be effectively eliminated.

摘要翻译： 本发明提供了一种基于信道质量指示符来估计无线数据传输信道的信道质量的方法。 通过估计信道质量，可以基于可能受测量不准确，延迟或可能由于例如不可接受的质量而具有不可接受的质量的非瞬时CQI来获得数据传输信道的精确和瞬时的信道质量。 移动台的高速运动。 本发明提供了所获得的信道质量指示符的质量和可靠性的确定，并且选择并连续地应用一个或多个各种估计过程，以便确定准确和瞬时的信道质量指示符。 此外，通过使用迭代校准程序，确定CQI，使得可以有效地消除定义的传输质量测量和实际测量的传输质量之间的系统偏移。

公开(公告)号：US08774099B2

公开(公告)日：2014-07-08

申请号：US11446264

申请日：2006-06-05

申请人： Volker Braun ,  Dietrich Zeller

发明人： Volker Braun ,  Dietrich Zeller

IPC分类号： H04W4/00

CPC分类号： H04J13/0044 ,  H04J13/16

摘要： A method for allocating HS-DSCH channelization codes in WCDMA based wireless communication system using HSDPA in which a total number of N HS-DSCH channelization codes are available. M

摘要翻译： 一种在基于WCDMA的无线通信系统中使用其中总共有N个HS-DSCH信道化码可用的HSDPA来分配HS-DSCH信道化码的方法。 M