公开(公告)号：US06678314B2

公开(公告)日：2004-01-13

申请号：US09942315

申请日：2001-08-29

申请人： Markku Juntti ,  Kari Pajukoski

发明人： Markku Juntti ,  Kari Pajukoski

IPC分类号： H04B169

CPC分类号： H04B1/707 ,  H04J13/0044

摘要： The present invention relates to a method and circuitry for determining a spreading factor in a communication system with variable data rates. In such a system the received signal may include a plurality of data symbols that are spread in the transmission signal in a manner that is defined by a spreading code and a spreading factor, the spreading factor being one of a plurality of possible spreading factors. In accordance with the method, the received signal is processed so as to produce signal outputs which are cleared from the effects of the spreading code, autocorrelation values are computed for the signal outputs, and the spreading factor is determined based on the computed autocorrelation values.

摘要翻译： 本发明涉及用于确定具有可变数据速率的通信系统中的扩展因子的方法和电路。 在这种系统中，接收信号可以包括以扩展码和扩频因子定义的方式在传输信号中扩展的多个数据符号，扩展因子是多个可能的扩展因子之一。 根据该方法，处理接收信号以产生从扩展码的效果中清除的信号输出，对信号输出计算自相关值，并且基于所计算的自相关值来确定扩频因子。

公开(公告)号：US06580772B2

公开(公告)日：2003-06-17

申请号：US09983773

申请日：2001-10-25

申请人： Kari Pajukoski

发明人： Kari Pajukoski

IPC分类号： H04B110

CPC分类号： H04L25/0202 ,  H04B1/707 ,  H04B1/7117 ,  H04B2201/70701

摘要： The invention relates to a channel estimation method and a receiver for forming a channel estimate. The arrangement according to the invention comprises forming a preliminary channel estimate ck by multiplying a received sample zk by a known pilot symbol in a multiplier; forming a preliminary autocorrelation of preliminary channel estimates that are successive in time in multipliers; filtering preliminary autocorrelations by averaging in a filter, and forming filter parameters &agr;k to &agr;k−m in a filter on the basis of the averaged autocorrelation, and forming an average channel estimate by a filter section which forms a channel estimate and which is controlled by filter parameters &agr;k to &agr;k−m.

公开(公告)号：US09294180B2

公开(公告)日：2016-03-22

申请号：US11895616

申请日：2007-08-23

申请人： Olav Tirkkonen ,  Kari Pajukoski ,  Jianfeng Kang

发明人： Olav Tirkkonen ,  Kari Pajukoski ,  Jianfeng Kang

IPC分类号： H04B3/10 ,  H04B7/06 ,  H04L5/00 ,  H04L25/02 ,  H04J1/16 ,  H04J3/14

CPC分类号： H04B7/0634 ,  H04L5/005 ,  H04L5/0051 ,  H04L25/0226

摘要： A pilot transmission in a multiple antenna closed loop transmission time multiplexes a beam-specific pilot and an antenna-specific pilot in two short blocks of one uplink sub-frame. The beam-specific pilot is transmitted as an in-band pilot with the same beam as data to provide optimal data demodulation/estimation. The antenna-specific pilot is transmitted as an out-band pilot to provide optimal beam selection.

摘要翻译： 多天线闭环传输时间中的导频传输在一个上行链路子帧的两个短块中复用波束专用导频和天线专用导频。 光束专用导频作为与数据相同的波束的带内导频发送，以提供最佳的数据解调/估计。 天线专用导频作为带外导频传输，以提供最佳波束选择。

公开(公告)号：US07352799B2

公开(公告)日：2008-04-01

申请号：US10440405

申请日：2003-05-19

申请人： Kari Pajukoski

发明人： Kari Pajukoski

IPC分类号： H04B1/707

CPC分类号： H04B1/7115 ,  H04L25/0204

摘要： The invention relates to a receiver in a radio system, comprising two or more receiving antennas (300A-300B) for receiving a spread spectrum signal containing user signals, means for locating (200A-200B) delay components of the user signal at different measurement moments, means for forming (304) a combined correlation value from at least two correlation values of a certain delay component, the two correlation values being formed from signals received via different receiving antennas (300A-300B), and the estimation means (310) being configured to use the combined correlation value to correct channel distortion. The invention also relates to a method of receiving a signal.

摘要翻译： 本发明涉及一种无线电系统中的接收机，包括用于接收包含用户信号的扩频信号的两个或多个接收天线（300A-300B），用于定位用户信号（200-200B）延迟分量的装置 在不同的测量时刻，用于从特定延迟分量的至少两个相关值形成（304）组合相关值的装置，所述两个相关值由经由不同接收天线（300A-300B）接收的信号形成，以及 估计装置（310）被配置为使用组合的相关值来校正信道失真。 本发明还涉及一种接收信号的方法。

公开(公告)号：US07349463B1

公开(公告)日：2008-03-25

申请号：US10009127

申请日：1999-06-11

申请人： Kari Pajukoski ,  Kari Horneman ,  Pasi Kinnunen

发明人： Kari Pajukoski ,  Kari Horneman ,  Pasi Kinnunen

IPC分类号： H04B1/00

CPC分类号： H04W52/24

摘要： The present invention relates to a method and apparatus for performing an interference estimation in a spread spectrum system using a plurality of spreading codes with different code lengths, wherein the interference estimate is obtained based on a variance estimate of despread samples integrated over a predetermined code period over which said plurality of spreading codes are orthogonal. Thereby, an unbiased interference estimation with high accuracy and proper consideration of code orthogonality can be obtained.

摘要翻译： 本发明涉及一种使用多个具有不同码长的扩展码在扩展频谱系统中执行干扰估计的方法和装置，其中干扰估计是基于在预定码周期内积分的解扩样本的方差估计获得的 所述多个扩展码正交。 因此，可以获得具有高精度和适当考虑码正交性的无偏差干扰估计。

公开(公告)号：US07317897B2

公开(公告)日：2008-01-08

申请号：US10515265

申请日：2002-06-04

申请人： Christian Braun ,  Kari Pajukoski ,  Klas Johansson

发明人： Christian Braun ,  Kari Pajukoski ,  Klas Johansson

IPC分类号： H04B1/00 ,  H04B15/00

CPC分类号： H04W52/343

摘要： A method and apparatus for power-based radio resource management in wireless radio systems based on continuously measuring a total interference power/tot and own-cell interference power/own as well as a continuously estimating the system noise power PN and/or the other-to-own cell interference ratio i based on these measurements. As a result, improved values PN and i are provided and a more accurate load factor/noise rise calculation can be performed.

摘要翻译： 一种用于无线无线电系统中的基于功率的无线电资源管理的方法和装置，其基于连续地测量总干扰功率/自身小区干扰功率/自身 基于这些测量，连续地估计系统噪声功率P N N和/或其他自身的小区干扰比i。 结果，提供了改善的值P N和N，并且可以执行更精确的负载因子/噪声增加计算。

公开(公告)号：US07233796B2

公开(公告)日：2007-06-19

申请号：US10840270

申请日：2004-05-07

申请人： Kari Niemela ,  Kari Pajukoski

发明人： Kari Niemela ,  Kari Pajukoski

IPC分类号： H04Q7/20 ,  H04B7/00

CPC分类号： H04W36/18 ,  H04W36/08 ,  H04W36/30 ,  H04W88/12

摘要： An arrangement for controlling transfer of information, comprising a radio system and a terminal equipment, which radio system comprises at least two base stations and is configured to set up simultaneous connections between the terminal equipment and at least two base stations, the terminal equipment being configured to measure properties of the connections between the terminal equipment and the base stations, and to select at least one of the base stations as a primary base station, information transfer between the primary base station and the terminal equipment being activated, and the radio system comprising a combining-splitting point, which is configured to carry out combining/splitting functions on information flows transmitted via connections set up over different physical transmission paths. The radio system is configured to restrict transfer of information between at least one secondary base station and the combining-splitting point, the terminal equipment having an inactive connection with the secondary base station.

摘要翻译： 一种用于控制信息传送的装置，包括无线电系统和终端设备，该无线电系统包括至少两个基站，并且被配置为在终端设备与至少两个基站之间建立同时连接，该终端设备被配置 以测量终端设备和基站之间的连接的属性，并且选择基站中的至少一个作为主基站，主基站和终端设备之间的信息传输被激活，并且所述无线电系统包括 组合分割点，其被配置为对通过在不同物理传输路径上建立的连接发送的信息流执行组合/分离功能。 无线电系统被配置为限制在至少一个辅助基站和组合分解点之间的信息传输，该终端设备与辅助基站具有不活跃的连接。

公开(公告)号：US20060285611A1

公开(公告)日：2006-12-21

申请号：US11210787

申请日：2005-08-25

申请人： Pasi Kinnunen ,  Kari Horneman ,  Kari Pajukoski

发明人： Pasi Kinnunen ,  Kari Horneman ,  Kari Pajukoski

IPC分类号： H04L27/00

CPC分类号： H04B1/70751 ,  H04B2201/70701 ,  H04L25/0236

摘要： A solution for determining in a radio receiver a data sequence indicating transmission parameters of a frame before the whole frame has been received in the radio receiver in order to obtain additional pilot symbols. According to the provided solution data is received in one or more time intervals, the data being part of a transmitted data sequence indicating transmission parameters of a frame. The possible data sequences are known to the radio receiver. The received data is compared with corresponding data of each known data sequence, and, based on the comparison, the data sequence which is determined to be closest to the received data is selected. The received data of the data sequence indicating the transmission parameters of the frame is then used as pilot data for channel estimation purposes, for example.

摘要翻译： 一种用于在无线电接收机中确定指示在整个帧之前的帧的传输参数的数据序列以便获得附加导频符号的解决方案。 根据提供的解决方案，在一个或多个时间间隔中接收数据，该数据是指示帧的传输参数的发送数据序列的一部分。 可能的数据序列是无线电接收机已知的。 将接收到的数据与每个已知数据序列的相应数据进行比较，并且基于比较，选择确定为最接近接收数据的数据序列。 例如，将表示帧的传输参数的数据序列的接收数据用作导频数据用于信道估计目的。

公开(公告)号：US20060262841A1

公开(公告)日：2006-11-23

申请号：US11177288

申请日：2005-07-11

申请人： Petri Vaisanen ,  Kari Pajukoski ,  Kari Horneman

发明人： Petri Vaisanen ,  Kari Pajukoski ,  Kari Horneman

IPC分类号： H04B17/00 ,  H03D1/04

CPC分类号： H04B17/336

摘要： A signal-to-interference power ratio (SIR) estimation method implementable in a telecommunication system is provided. The proposed SIR estimation method estimates SIR from received pilot symbols of a plurality of time intervals of a frame and is capable of taking into account different transmit powers of pilot symbols of different time intervals which would normally degrade the SIR estimate.

摘要翻译： 提供了可在电信系统中实现的信号干扰功率比（SIR）估计方法。 所提出的SIR估计方法从帧的多个时间间隔的接收导频符号估计SIR，并且能够考虑通常降低SIR估计的不同时间间隔的导频符号的不同发射功率。