公开(公告)号：US07792206B2

公开(公告)日：2010-09-07

申请号：US11068856

申请日：2005-03-02

申请人： Juha Ylitalo ,  Marcos Katz

发明人： Juha Ylitalo ,  Marcos Katz

IPC分类号： H04L1/02 ,  H04L27/00 ,  H03C7/00

CPC分类号： H04B7/0669 ,  H04B7/0408 ,  H04B7/0617 ,  H04B7/0634 ,  H04B7/0652 ,  H04L1/0618 ,  H04W52/42

摘要： A method includes receiving a reference signal and at least one delayed space-time encoded signal via at least two beams in which a time delay is associated with at least one of the at least two beams; determining channel state information based on the received reference signal and the received at least one delayed space-time encoded signal; and segmenting the channel state information into a plurality of channel state information segments.

摘要翻译： 一种方法包括经由至少两个波束接收参考信号和至少一个延迟的空时编码信号，其中时间延迟与至少两个波束中的至少一个相关联; 基于所接收的参考信号和所接收的至少一个延迟的空时编码信号来确定信道状态信息; 以及将所述信道状态信息分割成多个信道状态信息段。

公开(公告)号：US07403748B1

公开(公告)日：2008-07-22

申请号：US10240628

申请日：2000-04-07

申请人： Ilkka Keskitalo ,  Juha Ylitalo ,  Marcos Katz

发明人： Ilkka Keskitalo ,  Juha Ylitalo ,  Marcos Katz

IPC分类号： H04B7/02 ,  H04B17/00

CPC分类号： H04B7/0691 ,  H04B7/06 ,  H04B7/061 ,  H04B7/0617 ,  H04B7/0634 ,  H04B7/065 ,  H04B7/0669 ,  H04L1/0618

摘要： The present invention relates to a method and system for transmitting a transmission signal from an antenna array (19) to a receiving means (20) of a wireless communication system, wherein a signal quality measurement is performed at the receiving means (20) for predetermined antennas or beams of said antenna array (19). Based on a feedback information derived from the signal quality measurement, at least two of the predetermined antennas or beams of the antenna array (19) are selected. The selected antennas or beams are used for transmitting said transmission signal according to a transmit diversity or beamforming scheme. Thus, spectral efficiency and diversity gain can be enhanced by using only selected ones of the predetermined antennas or beams.

摘要翻译： 本发明涉及一种用于从天线阵列（19）向无线通信系统的接收装置（20）发送发送信号的方法和系统，其中在接收装置（20）处执行信号质量测量以预定 天线阵列（19）的天线或光束。 基于从信号质量测量导出的反馈信息，选择天线阵列（19）中的至少两个预定天线或波束。 所选择的天线或波束用于根据发射分集或波束成形方案传输所述传输信号。 因此，可以通过仅使用预定天线或波束中的选定的那些来增强频谱效率和分集增益。

公开(公告)号：US06671499B1

公开(公告)日：2003-12-30

申请号：US09609339

申请日：2000-07-05

申请人： Juha Ylitalo ,  Marcos Katz

发明人： Juha Ylitalo ,  Marcos Katz

IPC分类号： H04B702

CPC分类号： H04B7/0615 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0695 ,  H04B17/27 ,  H04B17/318

摘要： A method for directing an antenna beam, and a transceiver which comprises antenna arrays forming antenna beams in the transmission direction, by means of which beams a signal is transmitted, and which receives signals that propagate via different paths to the transceiver. The transceiver comprises estimating means for estimating directions of arrival of the received signals, when the transceiver receives signals propagated via different paths, measuring means for measuring the strengths of the signals received from different paths of arrival, and beam directing means. The directing means command the antenna array to form in the transmission direction the main antenna beam which is formed in the direction wherefrom the strongest signal is received, if the directions of arrival of the received signals differ only slightly from one another. If the directions of arrival of the received signals differ greatly from one another, the directing means command the antenna array to form, in addition to the main beam, one or more diversity beams, which are formed in the direction, wherefrom a signal exceeding the predetermined threshold value is received.

摘要翻译： 一种用于引导天线波束的方法，以及收发器，其包括在传输方向上形成天线波束的天线阵列，通过该天线波束发射信号，并且其接收经由不同路径传播到收发信机的信号。 收发器包括估计装置，用于当收发机接收经由不同路径传播的信号时，估计接收信号的到达方向，用于测量从不同到达路径接收的信号的强度的测量装置和波束定向装置。 如果接收信号的到达方向彼此稍微不同，则指导装置命令天线阵列在传输方向上形成沿接收最强信号的方向形成的主天线波束。 如果接收到的信号的到达方向彼此差异很大，除了主波束之外，引导装置还命令天线阵列形成一个或多个分集波束，该分集波束沿着方向形成，信号超过 接收预定的阈值。

公开(公告)号：US07149547B2

公开(公告)日：2006-12-12

申请号：US10202638

申请日：2002-07-25

申请人： Marcos Katz ,  Juha Ylitalo

发明人： Marcos Katz ,  Juha Ylitalo

IPC分类号： H04M1/00 ,  H04Q7/20

CPC分类号： H04B7/0617 ,  H01Q3/26

摘要： The invention relates to a method and a system for implementing diversity in transmission utilizing orthogonal antenna beams formed using digital beam forming methods. In this method antenna beams are directed to be adjacent so as to set at least one of the estimated directions of arrival of the received signal within the range between antenna amplification maximums of the antenna beams and signal is sent using said antenna beams. An advantage provided by the method and system of the invention is to improve the performance of the system in the downlink direction and also to reduce the imbalance between the uplink performance and the downlink performance. The method of the Invention also allows to carry out power control specifically for each antenna beam.

摘要翻译： 本发明涉及使用数字波束形成方法形成的正交天线波束来实现传输中的分集的方法和系统。 在这种方法中，天线波束被引导为相邻，以便将接收信号的估计到达方向中的至少一个设置在天线波束的天线放大最大值和信号之间的范围内，并使用所述天线波束发送。 本发明的方法和系统提供的优点是提高系统在下行方向上的性能，并减少上行性能与下行性能之间的不平衡。 本发明的方法还允许特别为每个天线波束执行功率控制。

公开(公告)号：US07139324B1

公开(公告)日：2006-11-21

申请号：US09586561

申请日：2000-06-02

申请人： Juha Ylitalo ,  Marcos Katz

发明人： Juha Ylitalo ,  Marcos Katz

IPC分类号： H04B7/02 ,  H04B17/00 ,  H04Q7/00

CPC分类号： H04B7/0669 ,  H04B7/0408 ,  H04B7/0617 ,  H04B7/0634 ,  H04B7/0652 ,  H04L1/0618 ,  H04W52/42

摘要： A method includes receiving at least two space-time coded signals from an antenna system associated with a first station, determining complex channel state information based on the received space-time coded signals, and sending the complex channel state information to the first station. In an alternative embodiment, a method includes transmitting at least two space-time coded signals in respective beams of a multi-beam antenna array, measuring a channel impulse response for each space-time coded signal at a second station, and sending an indicia of a selected set of least attenuated signals from the second station to the first station. The multi-beam antenna array is associated with a first station. The beams transmit a signature code embedded in each respective space-time coded signal, and the signature codes are orthogonal so that the second station can separate and measure the channel impulse response corresponding to each space-time coded signal.

摘要翻译： 一种方法包括从与第一站相关联的天线系统接收至少两个时空编码信号，基于接收的空时编码信号确定复信道状态信息，以及将复信道状态信息发送到第一站。 在替代实施例中，一种方法包括在多波束天线阵列的各个波束中发送至少两个空时编码信号，在第二站测量每个空间 - 时间编码信号的信道脉冲响应，并发送 从第二站到第一站的选定的一组最小衰减信号。 多波束天线阵列与第一台相关联。 波束发送嵌入在每个相应的空时编码信号中的签名代码，并且签名代码是正交的，使得第二站可以分离并测量与每个空时编码信号相对应的信道脉冲响应。

公开(公告)号：US06959048B1

公开(公告)日：2005-10-25

申请号：US09857488

申请日：1999-10-19

申请人： Kari Horneman ,  Marcos Katz ,  Juha Ylitalo

发明人： Kari Horneman ,  Marcos Katz ,  Juha Ylitalo

IPC分类号： H03M13/27 ,  H04B7/06 ,  H04B7/08 ,  H04L1/00 ,  H04L1/06 ,  H04L27/04 ,  H04L27/12 ,  H04L27/20

CPC分类号： H04B7/0613 ,  H04B7/0845 ,  H04B7/0891 ,  H04L1/0009 ,  H04L1/0018 ,  H04L1/0022 ,  H04L1/0025 ,  H04L1/0071 ,  H04L1/06

摘要： The invention relates to a method of transmitting data in a radio channel from a transmitter to a receiver, and to a transmitter and a receiver implementing the method. The method includes setting a radio channel quality requirement according to the user and system information; setting a data transfer delay requirement; determining a radio channel coherence time; channel encoding the data; selecting interleaving depth using the radio channel coherence time and the data transfer delay as decisive parameters; interleaving the channel coded data; if the radio channel quality requirement is not fulfilled, selecting at least one transmit diversity antenna besides the main antenna so that the radio channel quality requirement will be fulfilled; transmitting modulated, interleaved and channel coded data with the selected antennas.

摘要翻译： 本发明涉及一种在无线电信道中从发射机到接收机以及实现该方法的发射机和接收机的数据传输方法。 该方法包括根据用户和系统信息设置无线电信道质量要求; 设置数据传输延迟要求; 确定无线电信道相干时间; 通道编码数据; 使用无线电信道相干时间和数据传输延迟来选择交织深度作为决定性参数; 交织通道编码数据; 如果不符合无线电信道质量要求，则选择除主天线之外的至少一个发射分集天线，以满足无线电信道质量要求; 使用所选择的天线发射调制的，交织的和信道编码的数据。

公开(公告)号：US06788661B1

公开(公告)日：2004-09-07

申请号：US09438547

申请日：1999-11-12

申请人： Juha Ylitalo ,  Marcos Katz

发明人： Juha Ylitalo ,  Marcos Katz

IPC分类号： H04Q700

CPC分类号： H04W52/42 ,  H04B7/0615 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0634 ,  H04B7/0671 ,  H04L1/0618

摘要： A radio system includes a base station and a remote station. The base station includes a space-time encoder, an antenna system, a transmitter, a base station receiver, and a power management controller. The space-time encoder encodes a stream of symbols into first and second space-time coded signals, and the transmitter transmits the first and second space-time coded signals at respective first and second initial transmit powers from the antenna system so as to form respective first and second radiation patterns. The base station receiver receives power coefficient indicator information from the remote station, and the power management controller determines first and second adjusted transmit powers based on the respective first and second initial transmit powers and the power coefficient indicator information. In an alternative embodiment, a transmit station of a radio system includes a circuit to determine an angular power spectrum, a space-time encoder, and a transmitter. The space-time encoder encodes first and second symbols into first and second space-time coded signals, and the transmitter transmits the first and second space-time coded signals in respective first and second beams so that the first and second beams are contained within an angular spread of the angular power spectrum.

摘要翻译： 无线电系统包括基站和远程站。 基站包括时空编码器，天线系统，发射机，基站接收机和电源管理控制器。 空时编码器将符号流编码为第一和第二空时编码信号，并且发射机以相应的第一和第二初始发射功率从天线系统发送第一和第二空时编码信号，以形成相应的 第一和第二辐射图。 基站接收器从远程站接收功率系数指示符信息，并且功率管理控制器基于各自的第一和第二初始发射功率和功率系数指示符信息来确定第一和第二调整的发射功率。 在替代实施例中，无线电系统的发射台包括确定角功率谱的电路，时空编码器和发射机。 时空编码器将第一和第二符号编码为第一和第二空时编码信号，并且发射机在第一和第二波束中发送第一和第二空间 - 时间编码信号，使得第一和第二波束包含在 角度功率谱的角度扩展。

公开(公告)号：US07230928B2

公开(公告)日：2007-06-12

申请号：US10268099

申请日：2002-10-10

申请人： Marcos Katz ,  Juha Ylitalo

发明人： Marcos Katz ,  Juha Ylitalo

IPC分类号： H04Q7/20

CPC分类号： H04L1/0003 ,  H04B7/0632 ,  H04L1/0026 ,  H04L1/06 ,  H04L1/20

摘要： The invention relates to a radio system including transceivers. One of the transceivers includes, for instance, a device for comparing a parameter representing signal quality measured from the received signal with at least one threshold value and a device for determining a quality class for the performance of a MIMO common channel. At least one of the transceivers includes a device for storing the observations made by the second transceiver about the quality class transitions of the transfer channel of the first transceiver and a device for estimating the next quality class of the transfer channel of the first transceiver from the stored quality class transition observations.

摘要翻译： 本发明涉及一种包括收发器的无线电系统。 收发器之一包括例如用于将表示从接收信号测量的信号质量的参数与至少一个阈值进行比较的设备和用于确定用于执行MIMO公共信道的质量等级的设备。 收发器中的至少一个包括用于存储由第二收发器对第一收发器的传输信道的质量等级转换进行的观察的设备，以及用于从第一收发器的传输信道的传输信道估计下一质量等级的设备 存储质量类过渡观察。

公开(公告)号：US20050157683A1

公开(公告)日：2005-07-21

申请号：US11068855

申请日：2005-03-02

申请人： Juha Ylitalo ,  Marcos Katz

发明人： Juha Ylitalo ,  Marcos Katz

IPC分类号： H04J15/00 ,  H04B7/005 ,  H04B7/04 ,  H04B7/06 ,  H04B7/10 ,  H04B7/26 ,  H04L1/02 ,  H04L1/06 ,  H04W52/42 ,  H04Q7/00

CPC分类号： H04B7/0669 ,  H04B7/0408 ,  H04B7/0617 ,  H04B7/0634 ,  H04B7/0652 ,  H04L1/0618 ,  H04W52/42

摘要： A method includes receiving at least two space-time coded signals from an antenna system associated with a first station, determining complex channel state information based on the received space-time coded signals, and sending the complex channel state information to the first station. In an alternative embodiment, a method includes transmitting at least two space-time coded signals in respective beams of a multi-beam antenna array, measuring a channel impulse response for each space-time coded signal at a second station, and sending an indicia of a selected set of least attenuated signals from the second station to the first station. The multi-beam antenna array is associated with a first station. The beams transmit a signature code embedded in each respective space-time coded signal, and the signature codes are orthogonal so that the second station can separate and measure the channel impulse response corresponding to each space-time coded signal.

公开(公告)号：US08442144B2

公开(公告)日：2013-05-14

申请号：US12872193

申请日：2010-08-31

申请人： Juha Ylitalo ,  Marcos Katz

发明人： Juha Ylitalo ,  Marcos Katz

IPC分类号： H04B7/02

CPC分类号： H04B7/0669 ,  H04B7/0408 ,  H04B7/0617 ,  H04B7/0634 ,  H04B7/0652 ,  H04L1/0618 ,  H04W52/42

摘要： A method includes receiving from a first station at a second station at least two space-time coded signals in respective formed beams of a multi-beam antenna array associated with the first station; receiving from the first station, in a signaling channel, a value representing a transmit power level; determining power control coefficients for each of the space-time coded signals; and transmitting the power control coefficients to the first station, wherein the control coefficients are for in part adjusting transmit power.

摘要翻译： 一种方法包括从第一站的第一站接收与第一站相关联的多波束天线阵列的各个形成的波束中的至少两个空时编码信号; 在信令信道中从第一站接收表示发射功率电平的值; 确定每个空时编码信号的功率控制系数; 以及将所述功率控制系数发送到所述第一站，其中所述控制系数部分地调整发射功率。