公开(公告)号：US20040266342A1

公开(公告)日：2004-12-30

申请号：US10865489

申请日：2004-06-10

Applicant: Nokia Corporation

Inventor： Iikka Kontola ,  Samuli Pietila ,  Harri Valio

IPC: H04B007/185

CPC classification number: G01S19/21 ,  H04B1/1027

Abstract: The invention relates to a method for attenuating interferences in a positioning receiver, wherein a signal transmitted by the satellites of a positioning system is received, and the received signal is amplified. In the positioning receiver a noise level of the received signal is determined, the existence of interferences is established on the basis of changes of the determined noise level, and the amplification is controlled on the basis of the noise level of the signal received otherwise than during interference. The invention also relates to an electronic device, wherein the method is applied, as well as to a program, with which the method can be implemented in connection with the positioning receiver.

Abstract translation: 本发明涉及一种用于衰减定位接收机中的干扰的方法，其中接收由定位系统的卫星发送的信号，并且接收的信号被放大。 在定位接收机中，确定接收信号的噪声电平，基于确定的噪声电平的变化建立干扰的存在，并且基于除了在接收信号之前接收的信号的噪声电平来控制放大 干扰。 本发明还涉及一种电子设备，其中应用该方法以及与该定位接收机结合可实现该方法的程序。

公开(公告)号：US20030214433A1

公开(公告)日：2003-11-20

申请号：US10436033

申请日：2003-05-12

Applicant: Nokia Corporation

Inventor： Samuli Pietila ,  Harri Valio

IPC: G01S005/14

CPC classification number: G01S19/28 ,  G01S19/243 ,  G01S19/252

Abstract: The present invention relates to a method for determining the position of an electronic device (1) by means of satellites in a positioning system. In the method, satellite orbit data and a default position for the electronic device (1) are determined. In the method, at least the following steps are taken: a determination step for determining a first time data estimate by using said default position, a computing step for computing an estimate of the code phase of the satellite signal on the basis of said time data estimate, the default position and the satellite orbit data, and a searching step, in which a code-modulated signal transmitted by satellites of a positioning system is received for searching the signal of at least one satellite and for acquiring the signal by using said estimate of the code phase. The invention also relates to a system, in which the method is applied, as well as to an electronic device (1).

Abstract translation: 本发明涉及一种通过定位系统中的卫星确定电子设备（1）的位置的方法。 在该方法中，确定电子设备（1）的卫星轨道数据和默认位置。 在该方法中，至少采取以下步骤：用于通过使用所述默认位置来确定第一时间数据估计的确定步骤，用于基于所述时间数据计算卫星信号的码相位的估计的计算步骤 估计，默认位置和卫星轨道数据，以及搜索步骤，其中接收由定位系统的卫星发送的码调制信号，以搜索至少一颗卫星的信号，并通过使用所述估计来获取信号 的代码阶段。 本发明还涉及应用该方法的系统以及电子设备（1）。

公开(公告)号：US20030215005A1

公开(公告)日：2003-11-20

申请号：US10439591

申请日：2003-05-16

Applicant: Nokia Corporation

Inventor： Ilkka Kontola ,  Samuli Pietila ,  Harri Valio

IPC: H04B001/707

CPC classification number: H04B1/7075 ,  G01S19/21 ,  G01S19/29 ,  G01S19/30 ,  H04B1/7087 ,  H04B1/7156 ,  H04B2201/70715

Abstract: The invention relates to a method for synchronizing a receiver (1) with a transmitted code-modulated spread spectrum signal. In the method, at least one reference code (r(x)) is used, which corresponds to a code used in the modulation, and the frequency shift of the transmitted signal and the code phase of the code used in the modulation are determined. In the method, a correlation step is taken to form a correlation function matrix on the basis of the received signal and said reference code. A non-coherent search matrix is formed of said correlation function matrix. In the method, elements in said non-coherent search matrix are modified on the basis of at least one statistical property of the elements in said non-coherent search matrix, and/or high-pass filtering is performed before the formation of said correlation function matrix. The invention also relates to a system and a receiver in which the method is applied.

Abstract translation: 本发明涉及一种用于使接收机（1）与发送的码调制扩展频谱信号同步的方法。 在该方法中，使用与调制中使用的代码相对应的至少一个参考码（r（x）），并且确定发送信号的频移和在调制中使用的码的码相位。 在该方法中，采用相关步骤，基于接收信号和所述参考码形成相关函数矩阵。 非相干搜索矩阵由所述相关函数矩阵形成。 在该方法中，基于所述非相干搜索矩阵中的元素的至少一个统计特性来修改所述非相干搜索矩阵中的元素，和/或在形成所述相关函数之前执行高通滤波 矩阵。 本发明还涉及应用该方法的系统和接收机。

公开(公告)号：US20040165689A1

公开(公告)日：2004-08-26

申请号：US10693332

申请日：2003-10-24

Applicant: Nokia Corporation

Inventor： David Akopian ,  Harri Valio ,  Samuli Pietila ,  Jari Syrjarinne

IPC: H04L025/00

CPC classification number: G01S5/0221 ,  G01S19/20

Abstract: A method for validating detected code modulated signals transmitted by beacons of a positioning system and received by a receiver comprises as a first step performing measurements for the detected beacon signals. Then, at least one of the detected beacon signals is selected as a calibration signal. In a next step, at least one allowed range for results of measurements for detected beacon signals other than said calibration signal are determined based on measurements for the detected calibration signal and on an available reference position of the receiver. Finally, each detection of a beacon signal for which results of performed measurements are outside of an allowed range is rejected. The invention relates equally to a corresponding receiver, to an electronic device comprising such a receiver, to a device cooperating with such a receiver and to a corresponding positioning system.

Abstract translation: 用于验证由定位系统的信标发送并由接收机接收的检测到的码调制信号的方法包括作为对检测到的信标信号进行测量的第一步骤。 然后，选择检测到的信标信号中的至少一个作为校准信号。 在下一步骤中，基于检测到的校准信号的测量和接收机的可用参考位置来确定除了所述校准信号之外的检测到的信标信号的测量结果的至少一个允许范围。 最后，拒绝对所执行的测量结果超出允许范围的信标信号的每次检测。 本发明同样涉及对应的接收机，包括这种接收机的电子设备，与这种接收机配合的设备和相应的定位系统。

公开(公告)号：US20030118086A1

公开(公告)日：2003-06-26

申请号：US10325218

申请日：2002-12-20

Applicant: Nokia Corporation

Inventor： Samuli Pietila ,  Harri Valio

IPC: H04B001/707 ,  H04B007/185

CPC classification number: H04B1/7115 ,  G01S19/30

Abstract: The invention relates to a method for performing reacquisition in a positioning receiver (PR), in which at least one spread spectrum modulated signal is received. In the positioning receiver (PR), a reference signal is formed by using a reference code corresponding to the code used in the modulation of the signal to be received, and a correlation is made between the received signal and the reference signal. Said correlation is made in at least a first and a second part, and different correlation times are used in said first part and in said second part. The invention also relates to an electronic device (ED) comprising a positioning receiver (PR). The positioning receiver (PR) comprises means (1-6) for receiving at least one spread spectrum modulated signal, means (13, 14, 15) for forming a reference code corresponding to the code used in the modulation of the signal to be received, and means (8) for performing a correlation between the received signal and the reference signal for reacquisition of the signal to be received. Said means (8) for making the correlation comprise at least first correlating means (20a, 20b; 22a, 22b; 24a, 24b; 26a, 26b) and second correlating means (21a, 21b; 23a, 23b; 25a, 25b; 27a, 27b) for making the correlation in at least first and second parts, and means (20a, 21a; 20b, 21b) for using different correlation times in said at least first and second parts.

Abstract translation: 本发明涉及一种在定位接收机（PR）中执行再接收的方法，其中接收至少一个扩频调制信号。 在定位接收机（PR）中，通过使用与在待接收信号的调制中使用的代码相对应的参考码来形成参考信号，并且在接收信号和参考信号之间进行相关。 所述相关性在至少第一和第二部分中进行，并且在所述第一部分和所述第二部分中使用不同的相关时间。 本发明还涉及一种包括定位接收器（PR）的电子设备（ED）。 定位接收机（PR）包括用于接收至少一个扩频调制信号的装置（1-6），用于形成对应于在待接收信号的调制中使用的码的参考码的装置（13,14,15） 以及用于执行接收信号和参考信号之间的相关性以重新获取要接收的信号的装置（8）。 所述用于进行相关的装置（8）至少包括第一相关装置（20a，20b; 22a，22b; 24a，24b; 26a，26b）和第二相关装置（21a，21b; 23a，23b; 25a，25b; 27a ，27b），以及至少在第一和第二部分中使用不同相关时间的装置（20a，21a; 20b，21b）。

公开(公告)号：US20030004709A1

公开(公告)日：2003-01-02

申请号：US09878762

申请日：2001-06-11

Applicant: Nokia Corporation

Inventor： Ari Heikkinen ,  Vesa T. Ruoppila ,  Samuli Pietila

IPC: G10L011/04

CPC classification number: G10L19/08

Abstract: A method and apparatus for coding successive pitch periods of a speech signal. Based on a priori knowledge of statistical properties of successive speech periods, a shaped lattice structure is designed to cover the most probable points in the pitch space. The codebook index search starts with finding an open-loop estimate in the pitch space considering all dimensions and refining the open-loop estimate in a closed-loop search separately in each dimension based on the shaped lattice structure. The closed-loop search for the first subframe is for obtaining an absolute pitch period or a delta pitch while the closed-loop search for each of the other subframes is for obtaining a delta pitch for the respective subframe.

Abstract translation: 一种用于编码语音信号的连续音调周期的方法和装置。 基于对连续语音周期的统计特性的先验知识，设计了一种形状的格子结构来覆盖音调空间中最可能的点。 码本索引搜索开始于考虑所有维度的音调空间中的开环估计，并且基于形状的格子结构在每个维度中分开地在闭环搜索中优化开环估计。 对于第一子帧的闭环搜索用于获得绝对音调周期或增量音调，而对于每个其他子帧的闭环搜索用于获得相应子帧的增量间距。

公开(公告)号：US20030002564A1

公开(公告)日：2003-01-02

申请号：US10156645

申请日：2002-05-24

Applicant: Nokia Corporation

Inventor： Samuli Pietila ,  Harri Valio

IPC: H04B015/00 ,  H04K001/00 ,  H04L027/30

CPC classification number: G01S19/29 ,  G01S19/22 ,  H04B1/7075 ,  H04B1/709 ,  H04B2201/7071

Abstract: The invention relates to a method for controlling the operation of a receiver. In the method, at least one spread spectrum modulated signal is received on at least two receiving channels, and a reference signal is formed on said at least two receiving channels by using a reference code corresponding to the code used in the modulation of the signal to be received. Further, in the method, the received signal is correlated with the reference signal. In the receiver, a set of correlators is used, and for at least one correlator of said set of correlators, a receiving channel is selected, wherein said at least one correlator is used in the correlation of the signal received on the receiving channel with the corresponding reference signal. The invention further relates to an electronic device and a wireless communication device comprising a receiver for receiving at least one spread spectrum modulated signal on at least two receiving channels, means for forming a reference code corresponding to the code used in the modulation of a signal to be received, means for forming a reference signal by using said reference code, and means for correlating the received signal with the reference signal. Said means for performing the correlation comprise a set of correlators and means for selecting at least one correlator from said set of correlators to be used on one of said at least two receiving channels.

Abstract translation: 本发明涉及一种用于控制接收机的操作的方法。 在该方法中，在至少两个接收信道上接收至少一个扩频调制信号，并且通过使用对应于在信号调制中使用的码的参考码在所述至少两个接收信道上形成参考信号 被接收。 此外，在该方法中，接收信号与参考信号相关。 在接收机中，使用一组相关器，并且对于所述一组相关器的至少一个相关器，选择接收信道，其中所述至少一个相关器用于在接收信道上接收的信号与 相应的参考信号。 本发明还涉及一种电子设备和无线通信设备，其包括用于在至少两个接收信道上接收至少一个扩频调制信号的接收机，用于形成对应于在信号调制中使用的代码的参考码的装置， 被接收，用于通过使用所述参考码形成参考信号的装置，以及用于使接收信号与参考信号相关的装置。 用于执行相关的所述装置包括一组相关器和用于从所述至少两个接收信道中的一个上使用的所述相关器组中选择至少一个相关器的装置。