专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5081671A Method of reducing blockages in handing over calls in a mobile, cellular telephone system 失效
标题翻译：手机，蜂窝电话系统中减少呼叫阻塞的方法
公开(公告)号：US5081671A
公开(公告)日：1992-01-14
申请号：US668695
申请日：1991-03-07
申请人： Alex K. Raith , Jan-Erik Uddenfeldt , Bengt Y. Persson , Olov H. Eriksson
发明人： Alex K. Raith , Jan-Erik Uddenfeldt , Bengt Y. Persson , Olov H. Eriksson
IPC分类号： H04W16/02
CPC分类号： H04W16/02
摘要： A method of reducing blockages and call interruption in handling over calls in a cellular mobile radio system. When the signal strength from a base station to a mobile and vice versa falls below a given value the handover shall take place to another base station. In order that the call will not be interrupted, a smaller number of channels are reserved, so-called rescue channels, from the ordinary channels in the system. The rescue channels can be fixed or dynamic for a given base station.
摘要翻译：一种在蜂窝移动无线电系统中处理呼叫时减少阻塞和呼叫中断的方法。当从基站到移动台的信号强度反之亦然降低到给定值以下时，将切换到另一个基站。为了不会中断呼叫，从系统中的普通信道保留较少数量的信道，即所谓的救援信道。对于给定的基站，救援通道可以是固定的或动态的。

2. 再颁专利

USRE36078E Handover method for mobile radio system 失效
公开(公告)号：USRE36078E
公开(公告)日：1999-02-02
申请号：US938832
申请日：1997-09-26
申请人： Jan-Erik Uddenfeldt , Alex K. Raith
发明人： Jan-Erik Uddenfeldt , Alex K. Raith
IPC分类号： H04W36/08 , H04W36/18 , H04W72/04 , H04Q7/20
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 (MS.sub.1, MS.sub.2) is handed over from at least a first base station transmitter (B.sub.ma, B.sub.mb) to at least a second base station transmitter (B.sub.na, B.sub.nb). In accordance with the invention, 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 radio 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 transmission time substantially the same message information is transmitted to the mobile station from both at least one first and one second base station transmitter.

3. 再颁专利

USRE37754E1 Cellular digital mobile radio system and method of transmitting information in a digital cellular mobile radio system 有权
标题翻译：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
CPC分类号： H04H20/67 , H04W88/08
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。

4. 发明授权

US06374098B1 Systems and methods for locating remote units operating in a radiocommunication system using an adjunct system 失效
标题翻译：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
申请人： Alex K. Raith , R. David Koilpillai , Gregory E. Bottomley , Havish Koorapaty , Rajaram Ramesh
发明人： Alex K. Raith , R. David Koilpillai , Gregory E. Bottomley , Havish Koorapaty , Rajaram Ramesh
IPC分类号： H04M1100
CPC分类号： H04W4/90 , H04W76/50
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。

5. 再颁专利

USRE36079E Handover method for mobile radio system 失效
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
IPC分类号： H04W36/08 , H04W36/18 , H04W72/04 , H04Q7/00
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.

6. 发明授权

US5404355A Method for transmitting broadcast information in a digital control channel 失效
标题翻译：用于在数字控制信道中发送广播信息的方法
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
IPC分类号： H04J3/12 , H04W48/12 , H04W52/02 , H04W68/00 , H04B7/204 , H04Q7/00
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。

7. 发明授权

US5212803A Method for reducing equalizer usage in mobile radio communication systems 失效
标题翻译：在移动无线电通信系统中减少均衡器使用的方法
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
IPC分类号： H04B7/26 , H04W48/20 , H04W56/00
CPC分类号： H04W48/20 , H04W56/00 , Y02B60/50
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。

8. 发明授权

US5142539A Method of processing a radio signal message 失效
标题翻译：处理无线电信号消息的方法
公开(公告)号：US5142539A
公开(公告)日：1992-08-25
申请号：US489008
申请日：1990-03-06
申请人： Jan E. .ANG.. Dahlin , Alex K. Raith , Paul W. Dent
发明人： Jan E. .ANG.. Dahlin , Alex K. Raith , Paul W. Dent
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。

9. 发明授权

US06266534B1 Systems and methods for locating remote terminals in radiocommunication systems 有权
标题翻译：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
申请人： Alex K. Raith , Rajaram Ramesh , Karl Molnar , R. David Koilpillai , Havish Koorapaty
发明人： Alex K. Raith , Rajaram Ramesh , Karl Molnar , R. David Koilpillai , Havish Koorapaty
IPC分类号： H04Q720
CPC分类号： G01S5/14 , G01S5/06 , H04W4/90 , H04W76/50
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。

10. 发明授权

US06252868B1 Digital control channels having logical channels supporting broadcast SMS 有权
标题翻译：具有支持广播SMS的逻辑信道的数字控制信道
公开(公告)号：US06252868B1
公开(公告)日：2001-06-26
申请号：US09480258
申请日：2000-01-11
申请人： John W. Diachina , Bengt Persson , Alex K. Raith , Anthony J. Sammarco
发明人： John W. Diachina , Bengt Persson , Alex K. Raith , Anthony J. Sammarco
IPC分类号： H04B7212
CPC分类号： H04W4/06 , H04B7/24 , H04B7/2643 , H04B7/2656 , H04L1/0002 , H04L1/0046 , H04L1/0057 , H04L1/0059 , H04L1/0061 , H04L1/0071 , H04L1/0072 , H04L1/0083 , H04L1/08 , H04L1/1614 , H04L1/1685 , H04L1/18 , H04L1/1803 , H04L1/1809 , H04L1/1848 , H04L1/188 , H04L1/20 , H04L29/06 , H04L2001/0093 , H04W4/14 , H04W48/16 , H04W48/20 , H04W52/0216 , H04W52/0219 , H04W68/00 , H04W68/025 , H04W72/005 , H04W88/02 , Y02D70/25 , Y02D70/448 , Y02D70/449
摘要： A communications system in which information is transmitted in successive time slots grouped into a plurality of superframes which are, in turn, grouped into a plurality of hyperframes. A remote station is assigned to one of the time slots in each of the superframes for paging the remote station, each hyperframe including at least two superframes, and the information sent in the assigned time slot in one superframe in each hyperframe is repeated in the assigned time slot in the other superframe(s) in each hyperframe. Each superframe can include a plurality of time slots used for sending paging messages to remote stations, grouped into a plurality of successive paging frames, and the time slot to which the remote station is assigned is included once in every paging frame. Also, each superframe may include time slots comprising a logical channel for broadcast control information and time slots comprising a logical paging channel. Information sent in the assigned time slot may direct the remote station to read the broadcast control information, and the information may have been encoded according to an error correcting code and include a plurality of bits having polarities that are inverses of cyclic redundancy check bits produced by the encoding. Also, the broadcast control information may comprise special messages that are included in respective time slots comprising a logical special message channel, the time slots of the special message channel may be grouped in successive SMS frames, and the SMS frames may be synchronized to start with a start of a superframe.
摘要翻译：一种通信系统，其中在连续的时隙中发送信息，所述连续时隙被分组成多个超帧，所述多个超帧又被分组为多个超帧。将远程站分配给每个超帧中的一个时隙以用于寻呼远程站，每个超帧包括至少两个超帧，并且在每个超帧中的一个超帧中在分配的时隙中发送的信息在所分配的重帧中重复每个超帧中的其他超帧中的时隙。每个超帧可以包括用于向远程站发送寻呼消息的多个时隙，分组为多个连续的寻呼帧，并且在每个寻呼帧中包括一次分配给远程站的时隙。此外，每个超帧可以包括包括用于广播控制信息的逻辑信道和包括逻辑寻呼信道的时隙的时隙。在分配的时隙中发送的信息可以指示远程站读取广播控制信息，并且可以根据纠错码对信息进行编码，并且包括具有由循环冗余校验位反相的极性的多个比特，编码。此外，广播控制信息可以包括包括在包括逻辑特殊消息信道的相应时隙中的特殊消息，特殊消息信道的时隙可以被分组在连续的SMS帧中，并且SMS帧可以被同步以开始一个超帧的开始。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式