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    • 3. 发明授权
    • Cellular radio synchronization
    • 蜂窝无线电同步
    • US06667963B1
    • 2003-12-23
    • US09231067
    • 1999-01-14
    • Timo RantalainenVille Ruutu
    • Timo RantalainenVille Ruutu
    • H04J300
    • H04W56/0045H04J3/0682H04W56/0075
    • A cellular radio network based positioning system for determining the position of a mobile station (16). For each base transceiver station (1 to 5) or cell of the network, a fixed list of base transceiver stations is stored by a Mobile Positioning Centre (13). Each list identifies those base transceiver stations which enable the position of a mobile station served by the corresponding base transceiver station (6) to be optimally determined. The list is transmitted to the mobile station (16) via the serving base transceiver station (6) together with a list of respective real time differences which exist between the serving base transceiver stations and the listed base transceiver stations. The mobile station determines an observed time difference for each of the listed base transceiver stations, relative to the serving base transceiver station (6), from signals broadcast by the listed base transceiver stations. The mobile station listens for synchronization sequences contained in these signals during time windows defined by the various real time differences. The observed time differences are transmitted from the mobile station (6) to the serving base transceiver station (6) and are used by the network to compute the position of the mobile station (16).
    • 一种基于蜂窝无线电网络的定位系统,用于确定移动台(16)的位置。 对于每个基站(1至5)或网络的小区,移动定位中心(13)存储固定的基站收发器列表。 每个列表识别能够最佳地确定由对应的基站收发器(6)服务的移动台的位置的基站收发台。 该列表经由服务基站收发器(6)与存在于服务基站收发信机和列出的基站收发信机之间的各实时差列表一起发送到移动站(16)。 移动台根据列出的基站收发台广播的信号,相对于服务基站收发台(6)确定每个列出的基站收发信台的观测时间差。 在由各种实时差定义的时间窗期间,移动站侦听包含在这些信号中的同步序列。 观察到的时间差从移动台(6)发送到服务基站(6),由网络使用以计算移动台(16)的位置。
    • 4. 发明授权
    • Method and system for locating a mobile terminal in a cellular radio network
    • 用于在蜂窝无线电网络中定位移动终端的方法和系统
    • US06665540B2
    • 2003-12-16
    • US09776405
    • 2001-02-02
    • Timo RantalainenJani Moilanen
    • Timo RantalainenJani Moilanen
    • H04Q720
    • H04W64/00G01S1/026G01S5/10
    • A method and system for estimating the location of a mobile station in a telecommunications network having a reference base station and a plurality of neighboring base stations. At the beginning of the E-OTD measurement, the mobile station may be provided with the expected OTD values in the reference base station site, possibly instead of RTD values of the neighboring base stations, to make it possible for the mobile station to calculate the uncertainty in the measured OTD due to its unknown location. Alternatively, the network provides the mobile station the expected OTD values in its current location, and the estimated uncertainty of those values. When the uncertainty is greater than a predetermined value, the mobile station makes E-OTD measurements based on the SCH burst. Otherwise, the mobile station makes measurements based on normal/dummy bursts, and/or aligns the time window for taking samples from signals received from neighboring base stations.
    • 一种用于估计具有参考基站和多个相邻基站的电信网络中的移动台的位置的方法和系统。 在E-OTD测量开始时,移动台可以在参考基站站点中被提供预期的OTD值,可能代替相邻基站的RTD值,使得移动站可以计算 由于其未知位置导致测量OTD的不确定性。 或者,网络向移动台提供其当前位置中的预期OTD值,以及估计的那些值的不确定性。 当不确定度大于预定值时,移动台基于SCH突发进行E-OTD测量。 否则,移动台基于正常/虚拟突发进行测量,和/或对齐用于从相邻基站接收的信号中取样的时间窗口。
    • 5. 发明授权
    • Method and arrangement for locating a mobile station
    • 用于定位移动台的方法和装置
    • US06442392B2
    • 2002-08-27
    • US09185765
    • 1998-11-04
    • Ville RuutuTimo Rantalainen
    • Ville RuutuTimo Rantalainen
    • H04Q720
    • H04W64/00
    • The invention relates to a method for locating a mobile station (5) my means of radio signals between the mobile station (5) and the mobile station network (1a, 2a, 3a, 4a) by forming separate location channels in addition to the communication channels. The location channels are, among others, the location access channel and the location receipt channel. The access channel is used to send a burst, which includes the identification of the mobile station (5), such as the International Mobile Subscriber Identification (IMSI). The location channels can be used in the locating methods based on the angle of arrival, time difference and transition time of the radio transmission, for example.
    • 本发明涉及一种用于通过除通信之外形成分离的位置信道来定位移动站(5)在移动站(5)和移动站网络(1a,2a,3a,4a)之间的无线电信号的方法 频道 位置信道尤其包括位置接入信道和位置接收信道。 接入信道用于发送包括诸如国际移动用户识别(IMSI)的移动站(5)的标识的突发。 例如,位置信道可以基于到达角度,时间差和无线电传输的转换时间在定位方法中使用。
    • 9. 发明授权
    • Distance estimation in a communication system
    • 通信系统中的距离估计
    • US07358899B1
    • 2008-04-15
    • US10070107
    • 2000-08-31
    • Ruutu VilleTimo RantalainenMarko AlanenGudni Gunnarsson
    • Ruutu VilleTimo RantalainenMarko AlanenGudni Gunnarsson
    • G01S3/02
    • G01S11/02
    • The present invention relates to estimation of the distance between stations that communicate in a communication system over a radio interface. In the system at least one of the stations transmits signal bursts in time slots in accordance with a timing structure and at least one station receives the signal bursts. The method comprises determination of a first timing of a signal burst received at the receiving station, the first timing being associated with the first component of the received signal burst that meets a predefined condition. A second timing of the received signal burst is also determined for use in adjustment of internal timing of the receiving station for receiving and/or transmitting further signal bursts from and/or to the transmitting station. A timing offset is also determined between the stations. The distance between the stations is estimated based on the timing offset and the first timing of the received signal burst.
    • 本发明涉及通过无线电接口在通信系统中通信的站之间的距离的估计。 在系统中,至少一个站根据定时结构在时隙中发送信号脉冲串,并且至少一个站接收信号脉冲串。 该方法包括确定在接收站处接收的信号脉冲串的第一定时,第一定时与满足预定条件的接收信号脉冲串的第一分量相关联。 接收信号脉冲串的第二定时也被确定为用于调整接收站的内部定时,用于从发射站接收和/或发射另外的信号突发。 定时偏移也可以在站之间确定。 基于定时偏移和接收到的信号突发的第一定时来估计站之间的距离。
    • 10. 发明授权
    • Methods for determining times and changes of times of transmission, radio communications system and processor
    • 确定传输次数和时间变化的方法,无线电通信系统和处理器
    • US07039433B2
    • 2006-05-02
    • US10362397
    • 2001-06-27
    • Timo RantalainenJani MoilanenVille Ruutu
    • Timo RantalainenJani MoilanenVille Ruutu
    • H04B7/01
    • G01S5/10G01S1/026G01S1/045H04W56/001
    • The invention relates to a method for determining transmission times of signals transmitted by at least one radio transmitter BTS. In order to enhance the accuracy and reliability of estimates of transmission times or of changes of the transmission time of signals transmitted by radio transmitters BTS, it is proposed that a difference in the time level of estimates of the transmission times based on the measurement results of two different radio receivers LMU A,B is taken into account in a filtering of the estimates for obtaining an accurate value for the transmission times. It is further proposed that the changes of the transmission times estimated at different receivers LMU A,B is averaged for obtaining an accurate information about the changes. The invention equally relates to a corresponding radio communications system and to a processing unit for such a system.
    • 本发明涉及一种用于确定由至少一个无线电发射机BTS发射的信号的传输时间的方法。 为了提高传输时间的估计的准确性和可靠性,或者由无线发射机BTS发送的信号的传输时间的变化的提高,提出了基于测量结果的传输时间估计的时间水平差 在对用于获得传输时间的准确值的估计的过滤中考虑了两个不同的无线电接收机LMU A,B。 进一步提出,在不同接收机LMU A,B处估计的传输时间的变化被平均以获得关于变化的准确信息。 本发明同样涉及相应的无线电通信系统和用于这种系统的处理单元。