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    • 1. 发明授权
    • Accuracy assessment in assisted GPS positioning
    • 辅助GPS定位中的精度评估
    • US08289206B2
    • 2012-10-16
    • US12279807
    • 2006-02-15
    • Karl Torbjörn WigrenAri Kangas
    • Karl Torbjörn WigrenAri Kangas
    • G01S19/25G01S19/06G01S19/09
    • G01S19/256G01S19/05
    • Reliable and efficient search windows are provided by allowing the adaptation of the code search window to be dependent on inaccuracy measures of relations between a cellular frame time and a satellite reference time. This inaccuracy is calculated in a positioning node (21) of the cellular communications system (1), preferably by filtering of measurements received from user equipments. Linear trend Kalman filtering followed by post processing of estimation errors is presently preferred. In order to ensure non-ambiguous interpretation of the received time stamps of received satellite signals (55) provided by user equipments (10), a pseudo propagation delay is computed in both the user equipment (10) and the positioning node (21) based on GPS acquisition assistance data. The GPS time stamp is then defined referring to the determined pseudo propagation delay. In a preferred embodiment, the pseudo propagation delay is assured to be situated within a pre-determined time interval.
    • 通过允许代码搜索窗口的适应性取决于蜂窝帧时间和卫星参考时间之间的关系的不准确度量来提供可靠和有效的搜索窗口。 在蜂窝通信系统(1)的定位节点(21)中,优选地通过对从用户设备接收的测量进行滤波来计算该不准确性。 目前优选的是线性趋势卡尔曼滤波,后期处理估计误差。 为了确保由用户设备(10)提供的接收到的卫星信号(55)的接收到的时间标记的非歧义解释,在用户设备(10)和定位节点(21)两者中计算伪传播延迟 GPS采集辅助数据。 然后根据所确定的伪传播延迟来定义GPS时间戳。 在优选实施例中,确保伪传播延迟位于预定时间间隔内。
    • 4. 发明授权
    • Dynamic tag control and fingerprinting event localization
    • 动态标签控制和指纹事件定位
    • US09414291B2
    • 2016-08-09
    • US13265865
    • 2009-04-27
    • Karl Torbjörn Wigren
    • Karl Torbjörn Wigren
    • H04M11/04H04W36/38
    • H04W36/385
    • In a method for clustering position determination for providing position determination assisting data in a cellular communications network, detecting S1 an event, such as the occurrence of an emergency call or sudden drop in radio quality, providing a tag S2 for the detected event comprising event specific information. Subsequently, providing S3 high precision position measurements the said tagged detected event, and repeating S4 said detecting and providing steps a plurality of times. Finally, obtaining local clusters S5 of high-precision position measurements based on the event specific tag.
    • 在用于在蜂窝通信网络中提供位置确定辅助数据的聚类位置确定的方法中,检测S1诸如紧急呼叫的发生或无线电质量突然下降的事件,为检测到的事件提供包括事件特定的标签S2 信息。 随后,提供S3高精度位置测量所述标记的检测事件,并重复S4所述检测和提供步骤多次。 最后,基于事件特定标签获取高精度位置测量的本地簇S5。
    • 5. 发明授权
    • Methods and arrangements for positioning in wireless communications systems
    • 无线通信系统中定位的方法和布置
    • US09408026B2
    • 2016-08-02
    • US14349966
    • 2011-10-04
    • Karl Torbjörn WigrenClaudia Muñiz Garcia
    • Karl Torbjörn WigrenClaudia Muñiz Garcia
    • G01S5/00H04W4/02H04W64/00G01S5/02H04W24/10H04W88/08
    • H04W4/02G01S5/02H04W24/10H04W64/00H04W88/08
    • A method of reporting hidden sector information from a base station node in a wireless communication system. The base station node has an internal multi-sector structure that is hidden from the rest of the system. The hidden sector information has sector information of the multi-sector structure is only internally available in the base station node. Enhanced cell-ID measurements associated with a first user equipment communicating with the base station are obtained, and formatted into information elements of a measurement report, each such information element having a plurality of symbols. Subsequently, hidden sector information for the first user equipment is retrieved and has an indication of an antenna sector of the base station in which the first user equipment is located. The retrieved dormant/latent sector information uses at least one selected symbol of the plurality of symbols of the measurement report to provide a transformed measurement report.
    • 一种在无线通信系统中从基站节点报告隐藏扇区信息的方法。 基站节点具有从系统的其余部分隐藏的内部多扇区结构。 隐藏扇区信息具有多扇区结构的扇区信息仅在基站节点内部可用。 获得与与基站通信的第一用户设备相关联的增强的小区ID测量,并将其格式化为测量报告的信息元素,每个这样的信息元素具有多个符号。 随后,检索用于第一用户设备的隐藏扇区信息,并且具有第一用户设备所在的基站的天线扇区的指示。 检索到的休眠/潜在扇区信息使用测量报告的多个符号中的至少一个所选符号来提供转换的测量报告。
    • 7. 发明申请
    • Load Estimation in Interference Whitening Systems
    • 干涉美白系统负荷估计
    • US20120082195A1
    • 2012-04-05
    • US13376908
    • 2009-06-11
    • Karl Torbjörn Wigren
    • Karl Torbjörn Wigren
    • H04B15/00H04L27/01
    • H04B1/712H04B1/7103H04B17/345H04B2201/709727
    • A method for noise rise estimation in a wireless communication system comprises measuring (210) of received total wideband power a plurality of times and computing (212) of an estimate of a noise floor measure based on at least a number of the measured received total wideband powers. The method further comprises performing (214) of an interference whitening based on one of GRAKE, GRAKE+ and chip equalizer for a first user and determining (216) of a user equivalent total wideband power as an available total wideband power after the interference whitening for the first user. The estimate of a noise floor measure is compensated (218) for the interference whitening into a user equivalent noise floor measure and a noise rise measure for the first user is calculated (220) based at least on the user equivalent total wideband power and the user equivalent noise floor measure.
    • 一种用于无线通信系统中的噪声上升估计的方法包括:多次测量(210)所接收的总宽带功率,并基于所测量的接收总宽带的至少一个数量,计算(212)噪声本底测量的估计值 权力。 该方法还包括基于第一用户的GRAKE,GRAKE +和码片均衡器之一执行(214)干扰白化,并且确定(216)用户等效总宽带功率作为对于所述干扰增白的可用总宽带功率 第一个用户 噪声本底测量的估计被补偿(218)用于干扰白化到用户等效噪声基底测量中,并且至少基于用户等效总宽带功率和用户来计算第一用户的噪声上升测量(220) 等效噪音测量。
    • 9. 发明申请
    • METHODS AND ARRANGEMENTS FOR NOISE RISE ESTIMATION
    • 噪声上升估计的方法和布置
    • US20110244809A1
    • 2011-10-06
    • US13158959
    • 2011-06-13
    • Karl Torbjörn Wigren
    • Karl Torbjörn Wigren
    • H04W24/00
    • H04B1/7097H04B17/26H04B17/327H04B17/382
    • A received total wideband power (61A) in a wireless communications system is measured a number of times during a time interval. Preferably, also code powers ((C/I)i) are measured, directly or indirectly. A probability distribution of a first power quantity (63A, 63B), typically total received power is estimated from the set of measurements, preferably using Kalman filtering techniques, and preferably also a probability distribution of a second power quantity (62A, 62B) related to noise and interference signals. A conditional probability distribution of a noise rise measure to be determined is based at least on the probability distribution of the total power (63A, 63B). From that conditional probability distribution, a value of the noise rise measure is calculated. In a preferred embodiment, the noise rise measure is based on a quotient between total power and a noise floor, and the conditional probability distribution of the noise rise is therefore based on a conditional probability distribution of noise floor quantity (64). The conditional probability distribution of the noise floor quantity (64) is in turn based on the probability distribution of the extreme value of a second power quantity (62A, 62B) related to noise and interference signals and a prior determined probability distribution of a noise power floor.
    • 无线通信系统中接收的总宽带功率(61A)在一段时间间隔内被测量次数。 优选地,还直接或间接地测量代码权((C / I)i)。 优选地使用卡尔曼滤波技术来估计第一功率量(63A,63B)的概率分布(通常为总接收功率),并且优选地还与第二功率量(62A,62B)相关的第二功率量 噪声和干扰信号。 要确定的噪声上升测量的条件概率分布至少基于总功率(63A,63B)的概率分布。 从该条件概率分布,计算噪声上升量的值。 在优选实施例中,噪声上升测量基于总功率和噪声底限之间的商,因此噪声上升的条件概率分布基于噪声基底量的条件概率分布(64)。 基于与噪声和干扰信号相关的第二功率量(62A,62B)的极值的概率分布和噪声功率的先前确定的概率分布,噪声基底量(64)的条件概率分布又是依赖于 地板。
    • 10. 发明授权
    • Fingerprinting with radio channel related information
    • 指纹与无线信道相关信息
    • US09594149B2
    • 2017-03-14
    • US13638949
    • 2012-03-28
    • Iana SiominaKarl Torbjörn Wigren
    • Iana SiominaKarl Torbjörn Wigren
    • H04W64/00H04W24/00G01S5/02
    • G01S5/0252H04W64/00
    • Example Embodiments presented herein are directed towards a radio node (101, 130, 102), and corresponding methods therein, for fingerprinting positioning measurements. The radio node may be configured to provide a fingerprinting measurement result comprising radio channel related information. Non-limiting examples of radio channel information may be Doppler, speed and/or delay spread information. Example embodiments presented herein may also be directed towards a positioning node (140), and corresponding methods therein, for fingerprinting positioning management. The positioning node may be configured to receive radio channel related information from the radio node and generate a radio fingerprint based on the received radio channel related information.
    • 示例本文提出的实施例针对无线电节点(101,130,102)及其中的相应方法,用于指纹定位测量。 无线电节点可以被配置为提供包括无线电信道相关信息的指纹测量结果。 无线电信道信息的非限制性示例可以是多普勒,速度和/或延迟扩展信息。 此处呈现的示例性实施例还可以针对定位节点(140)以及其中的相应方法用于指纹定位管理。 定位节点可以被配置为从无线电节点接收无线电信道相关信息,并且基于所接收的无线信道相关信息生成无线电指纹。