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1.发明授权Systems and methods for locating remote terminals in radiocommunication systems 有权用于定位无线电通信系统中的远程终端的系统和方法公开(公告)号：US06266534B1
公开(公告)日：2001-07-24
申请号：US09488460
申请日：2000-01-20
IPC分类号： H04Q720
摘要： Emergency call handling may, in the near future, require terminal unit location information to be provided to emergency service centers. Exemplary embodiments of the present invention provide improved techniques for using a system of monitoring or adjunct stations to provide this location information to the emergency service centers. For example, received signal strength measurements in conjunction with path loss models, alone or in conjunction with either time of arrival (TOA) or time difference of arrival (TDOA) techniques can be selectively used to process received signals and provide location information. Techniques for improving timing estimates are also disclosed.
摘要翻译： 在不久的将来，紧急呼叫处理可能需要向紧急服务中心提供终端单元位置信息。 本发明的示例性实施例提供了使用监控系统或附加站的改进技术来向紧急服务中心提供该位置信息。 例如，可以选择性地使用接收的信号强度测量结合路径损耗模型，单独地或与到达时间（TOA）或到达时差（TDOA）技术相结合来处理接收到的信号并提供位置信息。 还公开了用于改善时序估计的技术。
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2.发明授权Systems and methods for locating remote units operating in a radiocommunication system using an adjunct system 失效用于定位在使用辅助系统的无线电通信系统中运行的远程单元的系统和方法公开(公告)号：US06374098B1
公开(公告)日：2002-04-16
申请号：US08840590
申请日：1997-04-22
IPC分类号： H04M1100
摘要： Emergency call handling may, in the near future, require terminal unit location information to be provided to emergency service centers. Independent or quasi-independent systems, sometimes referred to as adjunct systems, can be provided to monitor remote unit transmissions and derive location information for mobile units making emergency access therefrom. Techniques for determining which channels each adjunct receive shall monitor are described herein, as well as specific monitoring techniques. Moreover, the adjunct system can use the received information to provide a second speech path to an emergency service center.
摘要翻译： 在不久的将来，紧急呼叫处理可能需要向紧急服务中心提供终端单元位置信息。 可以提供独立或准独立系统，有时称为附属系统，以监视远程单元传输并导出从其进行紧急访问的移动单元的位置信息。 这里描述了用于确定每个附件接收的哪些通道应该监视的技术，以及具体的监视技术。 此外，辅助系统可以使用所接收的信息来向紧急服务中心提供第二语音路径。
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3.发明授权Interaction between an adjunct positioning system and a radiocommunication system 失效辅助定位系统与无线电通信系统之间的相互作用公开(公告)号：US06826394B1
公开(公告)日：2004-11-30
申请号：US08839861
申请日：1997-04-22
IPC分类号： H04M1100
摘要： Emergency call handling may, in the near future, require terminal unit location information to be provided to emergency service centers. Exemplary embodiments of the present invention provide techniques which provide for interaction between an adjunct system whose primary function is to provide terminal unit location information and the radiocommunication system. For example, the location information generated by the adjunct system can be used by the radiocommunication system for other purposes, e.g., dynamic channel allocation.
摘要翻译： 在不久的将来，紧急呼叫处理可能需要向紧急服务中心提供终端单元位置信息。 本发明的示例性实施例提供了提供主要功能是提供终端单元位置信息的辅助系统与无线电通信系统之间的交互的技术。 例如，由附加系统生成的位置信息可被无线电通信系统用于其它目的，例如动态信道分配。
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4.发明授权Systems and methods for handling emergency calls in hierarchical cell structures 失效在分层小区结构中处理紧急呼叫的系统和方法
公开(公告)号：US6115596A
公开(公告)日：2000-09-05
申请号：US839859
申请日：1997-04-22
CPC分类号： H04W36/06 , H04W16/32 , H04W4/22 , H04W64/00 , H04W76/007
摘要： Emergency call handling may, in the near future, require terminal unit location information to be provided to emergency service centers. Exemplary embodiments of the present invention facilitate the provision of this information by reducing a number of monitoring stations needed to track terminal location based upon control channel access. First, mobile units placing emergency calls can be forced to used designated control channels which may differ from control channels to which they are currently listening. Second, mobile units may be required to transmit at greater than specified power levels so that monitoring stations receive their emergency call access.
摘要翻译： 在不久的将来，紧急呼叫处理可能需要向紧急服务中心提供终端单元位置信息。 本发明的示例性实施例有助于通过基于控制信道访问减少跟踪终端位置所需的多个监控站来提供该信息。 首先，拨打紧急呼叫的移动单元可能被迫使用指定的控制信道，这些控制信道可能与当前正在侦听的控制信道不同。 第二，可能需要移动单元以大于指定的功率电平进行传输，以便监控站接收其紧急呼叫接入。
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5.发明授权Systems and methods for locating remote terminals in radiocommunication systems 失效用于定位无线电通信系统中的远程终端的系统和方法
公开(公告)号：US6040800A
公开(公告)日：2000-03-21
申请号：US839864
申请日：1997-04-22
CPC分类号： G01S5/14 , G01S5/06 , H04W4/22 , H04W76/007
摘要： Emergency call handling may, in the near future, require terminal unit location information to be provided to emergency service centers. Exemplary embodiments of the present invention provide improved techniques for using a system of monitoring or adjunct stations to provide this location information to the emergency service centers. For example, either time of arrival (TOA) or time difference of arrival (TDOA) techniques can be selectively used to process received signals and provide location information. Techniques for improving timing estimates are also disclosed.
摘要翻译： 在不久的将来，紧急呼叫处理可能需要向紧急服务中心提供终端单元位置信息。 本发明的示例性实施例提供了使用监控系统或附加站的改进技术来向紧急服务中心提供该位置信息。 例如，可以有选择地使用到达时间（TOA）或到达时差（TDOA）技术来处理接收到的信号并提供位置信息。 还公开了用于改善时序估计的技术。
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6.再颁专利Cellular digital mobile radio system and method of transmitting information in a digital cellular mobile radio system 有权蜂窝数字移动无线电系统和在数字蜂窝移动无线电系统中发送信息的方法公开(公告)号：USRE37754E1
公开(公告)日：2002-06-18
申请号：US09217577
申请日：1998-12-21
申请人： Jan E. Uddenfeldt , Alex K. Raith
发明人： Jan E. Uddenfeldt , Alex K. Raith
IPC分类号： H04Q700
摘要： The invention relates to a cellular digital mobile radio system including base stations (Bm, Bn) and mobile stations (MS1, MS2) with transmitters and receivers. The invention also relates to a method of transmitting message information digitally between mobile and base stations in such a system. In accordance with the invention, at least two base station transmitters (Bma, Bmb, Pna, Bnb) at a given transmitting distance from each other are assigned to each of certain cells (Cm, Cn) within a restricted geographical area. The base station transmitters which are assigned to the same cell transmit digitally modulated radio signals within the same frequency range at least partially simultaneously to the mobile stations of the cell. The radio signals from different base station transmitters associated with the same cell are digitally modulated with the same message information to the mobile stations in the cell. Different base station transmitters (9A, 9B) preferably transmit the digitally modulated radio signals with the same message information to a given mobile station with a given mutual transmission time shift. Here, the transmission time shift is selected individually for each mobile station, such that corresponding digitally modulated radio signals with the same message information to a given mobile station from different base station transmitters arrive practically simultaneously at the mobile station.
摘要翻译： 本发明涉及包括基站（Bm，Bn）和具有发射机和接收机的移动台（MS1，MS2）的蜂窝数字移动无线电系统。 本发明还涉及在这种系统中在移动台和基站之间数字地发送消息信息的方法。 根据本发明，在给定的彼此的发送距离处的至少两个基站发射机（Bma，Bmb，Pna，Bnb）被分配给受限地理区域内的某些小区（Cm，Cn）中的每一个。 分配给相同小区的基站发射机至少部分地同时向小区的移动台发送在相同频率范围内的数字调制无线电信号。 来自与相同小区相关联的不同基站发射机的无线电信号用相同的消息信息被数字调制到小区中的移动台。 不同的基站发射机（9A，9B）优选地以给定的相互传输时间偏移将具有相同消息信息的数字调制无线电信号发送给给定的移动台。 这里，对于每个移动台单独选择传输时移，使得具有相同消息信息的相应的数字调制无线电信号从不同的基站发射机到给定的移动台在移动台实际上同时到达。
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公开(公告)号：USRE36079E
公开(公告)日：1999-02-02
申请号：US938840
申请日：1997-09-26
申请人： Jan E. Uddenfeldt , Alex K. Raith
发明人： Jan E. Uddenfeldt , Alex K. Raith
CPC分类号： H04W36/0083 , H04M15/825 , H04W36/08 , H04W36/18 , H04M2215/32 , H04M2215/7853
摘要： The invention relates to a method in mobile radio systems in which the responsibility for transmitting message information to a mobile station is handed over from a first base station transmitter to a second base station transmitter. In this method, the same radio channel is used, if possible, before and after the handover for transmitting message information to the mobile station. If the same radio channel can be utilized, the handover takes place without the mobile station being informed beforehand of the handover by a special signal or order or the like. In digital mobile ratio systems with digital transmission of message information by digital modulation of the radio signals, the transmission is preferably started from a second base station transmitter before the transmission is terminated from a first base station transmitter. During a certain transmission time substantially the same message information is transmitted to the mobile station from both the first and second base station transmitters.
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8.发明授权
公开(公告)号：US5404355A
公开(公告)日：1995-04-04
申请号：US956640
申请日：1992-10-05
申请人： Alex K. Raith
发明人： Alex K. Raith
CPC分类号： H04W48/12 , H04W52/0216 , H04W52/0219 , H04W52/0245 , H04W68/00
摘要： The present invention provides a method for transmitting information on a communications channel, e.g. , a digital control channel between a base station and a mobile station in a cellular system. The method includes the steps of grouping the information into a plurality of information elements, providing at least one change flag to indicate whether the value of at least one of the information elements has changed and transmitting the change flag and the information element over the communications channel.
摘要翻译： 本发明提供一种用于在通信信道上发送信息的方法，例如， ，蜂窝系统中的基站和移动站之间的数字控制信道。 该方法包括以下步骤：将信息分组成多个信息元素，提供至少一个改变标志以指示信息元素中的至少一个的值是否已经改变，并且通过通信信道发送改变标志和信息元素 。
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9.发明授权
公开(公告)号：US5212803A
公开(公告)日：1993-05-18
申请号：US578246
申请日：1990-09-06
申请人： Jan E. Uddenfeldt , Alex K. Raith
发明人： Jan E. Uddenfeldt , Alex K. Raith
摘要： A method in a mobile radio station to select one of a number of dedicated control channels (DCCH1-21) which are transmitted from a number of base stations (B1-B21) in a mobile radio system. In the mobile station there is an equalizer to compensate for the multipath propagation characteristics of the radio medium between the mobile station and a certain base station. This equalizer is power consuming and should not be used if not necessary. According to the method an investigation is carried out in the mobile station whether or not the equalizer can be disconnected during the initialization of a call from the mobile to a base station. The signal quality of the dedicated channel (DCCH1) which has the greatest signal strength is measured without the equalizer. If the signal quality is not acceptable, a new detection is made with the use of the equalizer. If the signal quality then is acceptable another detection is made without equalizer on the dedicated control channel (DCCH2) which has the next strongest signal and if this detection revealed an acceptable signal quality the base station (B2) transmitting this control channel is selected by the mobile station for the further call progress.
摘要翻译： 一种移动无线站中的方法，用于选择在移动无线电系统中从多个基站（B1-B21）发送的多个专用控制信道（DCCH1-21）中的一个。 在移动台中，存在用于补偿移动台与某个基站之间的无线介质的多径传播特性的均衡器。 该均衡器是耗电量，如果不需要，不应该使用。 根据该方法，在从移动台到基站的呼叫初始化期间，在移动站中进行调查是否可以断开均衡器。 在没有均衡器的情况下测量具有最大信号强度的专用信道（DCCH1）的信号质量。 如果信号质量不可接受，则使用均衡器进行新的检测。 如果信号质量可以接受，则在没有均衡器的情况下，在具有下一个最强信号的专用控制信道（DCCH2）上进行另一个检测，并且如果该检测显示可接受的信号质量，那么发送该控制信道的基站（B2）由 移动台进一步呼叫进度。
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公开(公告)号：US5142539A
公开(公告)日：1992-08-25
申请号：US489008
申请日：1990-03-06
IPC分类号： H04L1/00
CPC分类号： H04L1/0041 , H04L1/0083
摘要： A method in a mobile radiotelephone system in which an address is added to a symbol message in a control channel in order to exclude interfering connections operating on the same radio frequency as the actual connection between a base station and a mobile station. According to the proposed method, the address (A1) to the intended receiver is added to the message (M) and an error check word (E) is calculated based on both the address (A1) and the message (M). Before transmitting to the receiver, the added address is removed and the transmitted control signal includes only the symbol message (M) and the error check code (E). In the receiver, the specific address for the receiver is added to the received control signal and the same calculation is carried out as in the transmitter in order to get an accept/reject signal.
摘要翻译： 一种移动无线电话系统中的方法，其中将地址添加到控制信道中的符号消息，以便排除与基站和移动站之间的实际连接在相同射频上操作的干扰连接。 根据所提出的方法，将预期接收机的地址（A1）添加到消息（M）中，并且基于地址（A1）和消息（M）两者计算错误校验字（E）。 在发送到接收机之前，删除添加的地址，并且发送的控制信号仅包括符号消息（M）和错误校验码（E）。 在接收机中，接收机的特定地址被加到接收到的控制信号上，并且像发射机那样执行相同的计算，以获得接收/拒绝信号。
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