公开(公告)号：US07359734B2

公开(公告)日：2008-04-15

申请号：US10527986

申请日：2002-09-24

Applicant: Juha Ylitalo

Inventor： Juha Ylitalo

IPC: H04M1/00

CPC classification number: H01Q3/2605 ,  H01Q3/267 ,  H04B7/0802 ,  H04B7/0842

Abstract: The invention relates to compensation of a radiation pattern in a radio system. The solution comprises forming a primary radiation pattern by weighting signals of antenna branches with primary weights. The primary radiation pattern is compensated with a compensating radiation pattern after one or more antenna branches have been disconnected. The solution enables operation of the radio system without interruptions in certain fault situations of the base station.

Abstract translation: 本发明涉及无线电系统中辐射图的补偿。 解决方案包括通过对具有主权重的天线分支的信号进行加权来形成主辐射图。 在一个或多个天线分支已经断开之后，主要辐射图被补偿了补偿辐射图。 该解决方案使得无线电系统的操作在基站的某些故障情况下不中断。

公开(公告)号：US07277730B2

公开(公告)日：2007-10-02

申请号：US10328191

申请日：2002-12-26

Applicant: Juha Ylitalo

Inventor： Juha Ylitalo

IPC: H04M1/00 ,  H03C7/02

CPC classification number: H04W16/28 ,  H04W28/18 ,  H04W72/04 ,  H04W88/08

Abstract: The invention relates to a method of allocating radio resources and a telecommunication system including a base station and user equipment. The base station includes a beam forming device configured to form at least two primary beams for signal reception. The antenna array and the beam forming device of the base station are configured to receive a signal transmitted by the user equipment using at least two primary beams, thus providing primary beam-specific signals as output. The base station includes a processing device for determining at least two secondary beam-specific variables associated with two secondary beams using the primary beam-specific signals as input and a transformation between the primary antenna beams and the secondary antenna beams. The telecommunication system further includes an allocation device for allocating radio resources to the user equipment based on the secondary beam-specific variables.

Abstract translation: 本发明涉及分配无线电资源的方法和包括基站和用户设备的电信系统。 基站包括波束形成装置，其被配置为形成用于信号接收的至少两个主波束。 基站的天线阵列和波束形成装置被配置为接收由用户设备使用至少两个主波束发送的信号，从而提供初级波束特定信号作为输出。 基站包括处理装置，用于使用主波束特定信号作为输入以及主天线波束和次天线波束之间的变换来确定与两个次波束相关联的至少两个次波束特定变量。 电信系统还包括用于基于次要波束特定变量向用户设备分配无线电资源的分配装置。

公开(公告)号：US07230928B2

公开(公告)日：2007-06-12

申请号：US10268099

申请日：2002-10-10

Applicant: Marcos Katz ,  Juha Ylitalo

Inventor： Marcos Katz ,  Juha Ylitalo

IPC: H04Q7/20

CPC classification number: H04L1/0003 ,  H04B7/0632 ,  H04L1/0026 ,  H04L1/06 ,  H04L1/20

Abstract: 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.

Abstract translation: 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：US07123943B2

公开(公告)日：2006-10-17

申请号：US10386942

申请日：2003-03-13

Applicant: Juha Ylitalo

Inventor： Juha Ylitalo

IPC: H04M1/00

CPC classification number: H01Q25/00 ,  H01Q3/40

Abstract: A method of forming directional antenna beams, comprising: directing at least two antenna beam signals by means of a beam formation matrix and pre-phasing pre-determined antenna beam signals formed with an antenna array in such a way that the signal of at least one antenna beam has a different phase compared with the signals of other antenna beams. The pre-phasing is implemented with a pre-phasing element, which comprises phasing coefficients in digital implementation. The pre-phasing element is implemented in such a way, for example, that the power of the sum signal of the antenna elements is evenly distributed to the different antenna elements in a pre-determined variation range.

公开(公告)号：US20050157683A1

公开(公告)日：2005-07-21

申请号：US11068855

申请日：2005-03-02

Applicant: Juha Ylitalo ,  Marcos Katz

Inventor： Juha Ylitalo ,  Marcos Katz

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

CPC classification number: H04B7/0669 ,  H04B7/0408 ,  H04B7/0617 ,  H04B7/0634 ,  H04B7/0652 ,  H04L1/0618 ,  H04W52/42

Abstract: 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：US06782255B1

公开(公告)日：2004-08-24

申请号：US09588954

申请日：2000-06-07

Applicant: Pekka Ranta ,  Juha Ylitalo

Inventor： Pekka Ranta ,  Juha Ylitalo

IPC: H04Q720

CPC classification number: H04B7/0491 ,  H04B7/005 ,  H04B7/086 ,  H04W52/04

Abstract: The inventive idea is to send in the same cell on one channel several signals and to cause different radio frequency characteristics to the signals received on the same channel. The different characteristics of signals are brought about e.g. by modulating the signals in different ways or by sending the signals from different points, whereby the different signals will experience different radio channels. Owing to the different characteristics, the signals can be distinguished from one another by a joint detection, interference cancellation method. In the downlink direction from the base transceiver station to the mobile station and in the uplink direction from mobile station to the base transceiver station it is often advantageous to use different methods.

Abstract translation: 本发明的想法是在一个信道上的相同小区中发送几个信号，并且对同一信道上接收的信号产生不同的射频特性。 信号的不同特性如 通过以不同的方式调制信号或通过从不同的点发送信号，由此不同的信号将经历不同的无线电信道。 由于不同的特性，可以通过联合检测，干扰消除方法将信号彼此区分开。 在从基站到移动台的下行方向以及从移动台向基站的上行链路方向上，使用不同的方法是有利的。

公开(公告)号：US08442144B2

公开(公告)日：2013-05-14

申请号：US12872193

申请日：2010-08-31

Applicant: Juha Ylitalo ,  Marcos Katz

Inventor： Juha Ylitalo ,  Marcos Katz

IPC: H04B7/02

CPC classification number: H04B7/0669 ,  H04B7/0408 ,  H04B7/0617 ,  H04B7/0634 ,  H04B7/0652 ,  H04L1/0618 ,  H04W52/42

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08160601B2

公开(公告)日：2012-04-17

申请号：US11766245

申请日：2007-06-21

Applicant: Nenad Veselinovic ,  Juha Ylitalo

Inventor： Nenad Veselinovic ,  Juha Ylitalo

IPC: H04W72/00

CPC classification number: H04L1/0001 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0656

Abstract: The selection of the spatial mode together with modulation and encoding schemes based on channel condition measurements requested from MS forms a basis for selecting a best transmission data rate in a wireless link in every channel conditions. A method and network element comprising multiple-input multiple-output (MIMO) capable antenna technology allows the use of a best transmission data rate in the channel if selection of transmission mode has been made correctly. The thresholds for transmission mode selections are pre-determined and compared to instantaneous channel quality information. The practical MIMO solution based on correct selection procedure provides also continuous sufficient channel condition for terminal users when the user moves from LOS situation to NLOS situation.

Abstract translation: 基于从MS请求的信道条件测量，空间模式的选择以及调制和编码方案构成了在每个信道条件下选择无线链路中的最佳传输数据速率的基础。 包括多输入多输出（MIMO）能力的天线技术的方法和网络元件允许在正确地进行传输模式的选择时在信道中使用最佳的传输数据速率。 传输模式选择的阈值是预先确定的，并与瞬时信道质量信息进行比较。 基于正确选择过程的实际MIMO解决方案，在用户从LOS情况转移到NLOS情况时，为终端用户提供连续充足的信道条件。

公开(公告)号：US20110255434A1

公开(公告)日：2011-10-20

申请号：US13123929

申请日：2008-10-16

Applicant: Juha Ylitalo

Inventor： Juha Ylitalo

IPC: H04L12/26

CPC classification number: H01Q3/26 ,  H01Q1/246 ,  H04B7/0617

Abstract: The invention relates to a method of transmitting data in a communications system. The invention comprises: receiving from a user an uplink signal using multiple narrow antenna beams; measuring beam-specific pilot signal powers from the uplink signal for all the beams; and using the measured pilot signal powers to determine which one or ones of the downlink beams is to be used for a downlink signal for the user.

Abstract translation: 本发明涉及一种在通信系统中传输数据的方法。 本发明包括：从用户接收使用多个窄天线波束的上行链路信号; 测量来自所有波束的上行链路信号的波束特定导频信号功率; 以及使用所测量的导频信号功率来确定所述下行链路波束中的哪一个或哪个将用于所述用户的下行链路信号。

公开(公告)号：US20110188418A1

公开(公告)日：2011-08-04

申请号：US13122181

申请日：2008-10-13

Applicant: Juha Ylitalo ,  Taavi Hirvonen

Inventor： Juha Ylitalo ,  Taavi Hirvonen

IPC: H04W4/00 ,  H04W88/02

CPC classification number: H01Q3/30 ,  H01Q3/40 ,  H01Q21/08 ,  H01Q21/29 ,  H04B7/0408

Abstract: A fixed phase shift for each of a plurality of radio frequency signal components directed to or received from a plurality of antenna elements is formed in a phase shifter. A desired antenna beam pattern with at least one grating lobe is formed on the basis of the phase-shifted radio frequency signal components of the antenna elements in a predefined antenna structure.

Abstract translation: 针对多个天线元件的多个射频信号分量中的每一个的固定相移形成在移相器中。 基于预定天线结构中的天线元件的相移射频信号分量，形成具有至少一个光栅波瓣的所需天线波束图案。