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21.发明授权公开(公告)号：US07848733B2
公开(公告)日：2010-12-07
申请号：US11648774
申请日：2006-12-28
IPC分类号： H04M11/04
CPC分类号： H04M7/0069 , H04M2242/04 , H04W4/90 , H04W64/00 , H04W76/50 , H04W88/16
摘要： A wireless location system may include geolocation of a wireless device connected to Voice-over-Internet-Protocol (VoIP) adapter. The VoIP adapter may include a wireless transceiver or a wireless location determining receiver that facilitates the location of a wireless device connected to the VoIP adapter. The wireless transceiver or the location determining receiver may provide location information to an emergency dispatcher.
摘要翻译： 无线定位系统可以包括连接到因特网协议语音（VoIP）适配器的无线设备的地理定位。 VoIP适配器可以包括有助于连接到VoIP适配器的无线设备的位置的无线收发器或无线位置确定接收器。 无线收发器或位置确定接收器可以向紧急调度器提供位置信息。
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公开(公告)号：US08442538B2
公开(公告)日：2013-05-14
申请号：US12648783
申请日：2009-12-29
IPC分类号： H04W36/00
摘要： For Wireless Communications Networks (WCNs) that support soft handover, cooperator receiver selection for a TDOA, AOA, TDOA/AOA, or hybrid network-based or network-overlay Wireless Location System (WLS) must contend with one or more network base stations as a serving cell. When the active set contains more than one member, two techniques for determining a set of cooperating and demodulating receivers to use in the signal collection for location estimation is disclosed. In one embodiment, the active set members are constructively reduced to a single member that is used as a proxy serving cell. In another embodiment, the information contained in the active set membership is retained and a new set of demodulating and cooperator receivers are generated based on the entire membership of the active set.
摘要翻译： 对于支持软切换的无线通信网络（WCN），针对TDOA，AOA，TDOA / AOA或基于混合网络或网络覆盖无线定位系统（WLS）的合作者接收机选择必须与一个或多个网络基站作为 一个服务单元。 当活动集合包含多于一个成员时，公开了用于确定在用于位置估计的信号收集中使用的一组协作和解调接收机的两种技术。 在一个实施例中，主动集合成员被建设性地简化为用作代理服务小区的单个成员。 在另一个实施例中，包含在活动集合隶属中的信息被保留，并且基于活动集合的整个成员资格生成新的一组解调和合作者接收者。
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公开(公告)号：US08204511B2
公开(公告)日：2012-06-19
申请号：US13171780
申请日：2011-06-29
申请人： Rashidus S. Mia
发明人： Rashidus S. Mia
IPC分类号： H04W24/00
CPC分类号： G01S5/0221 , G01S5/06 , G01S5/12 , H04W64/00
摘要： In a wireless location system, a method for determining frame and slot timing information for use in receiving an uplink signal from a user equipment (UE) device assigned to an uplink Dedicated Physical Control Channel (DPCCH) includes receiving signals in the uplink DPCCH at a location measurement unit (LMU) of the WLS. The method also includes detecting a predefined bit pattern known to be present in a plurality of predefined slots of the uplink DPCCH. Next, the frame and slot timing information are determined for the uplink DPCCH based on the detected bit pattern. Finally, the frame and slot timing information is used for collecting uplink signals from the UE for use in location processing.
摘要翻译： 在无线定位系统中，用于确定用于从分配给上行链路专用物理控制信道（DPCCH）的用户设备（UE）设备接收上行链路信号的帧和时隙定时信息的方法包括在上行链路DPCCH中接收信号 位置测量单元（LMU）。 该方法还包括检测已知存在于上行链路DPCCH的多个预定时隙中的预定义位模式。 接下来，基于检测到的位模式，为上行链路DPCCH确定帧时隙定时信息。 最后，帧和时隙定时信息用于收集来自UE的上行链路信号，用于定位处理。
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公开(公告)号：US07924224B2
公开(公告)日：2011-04-12
申请号：US12192842
申请日：2008-08-15
CPC分类号： G01S5/0221 , G01S5/04 , G01S5/06 , H04W64/00
摘要： In a network-based Wireless Location System (WLS), geographically distributed Location Measurement Units (LMUs) must be able to detect and use reverse channel (mobile to network) signals across multiple BTS coverage areas. By using Matched Replica correlation processing with the local and reference signals subdivided into discrete segments prior to correlation, the effects of mobile clock drift and Doppler shifts can be mitigated allowing for increased processing gain.
摘要翻译： 在基于网络的无线定位系统（WLS）中，地理分布的位置测量单元（LMU）必须能够跨多个BTS覆盖区域检测和使用反向信道（移动到网络）信号。 通过使用匹配副本相关处理与在相关之前被分成离散段的本地参考信号和参考信号，可以减轻移动时钟漂移和多普勒频移的影响，从而允许增加的处理增益。
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公开(公告)号：US20100039326A1
公开(公告)日：2010-02-18
申请号：US12192842
申请日：2008-08-15
IPC分类号： G01S3/02
CPC分类号： G01S5/0221 , G01S5/04 , G01S5/06 , H04W64/00
摘要： In a network-based Wireless Location System (WLS), geographically distributed Location Measurement Units (LMUs) must be able to detect and use reverse channel (mobile to network) signals across multiple BTS coverage areas. By using Matched Replica correlation processing with the local and reference signals subdivided into discrete segments prior to correlation, the effects of mobile clock drift and Doppler shifts can be mitigated allowing for increased processing gain.
摘要翻译： 在基于网络的无线定位系统（WLS）中，地理分布的位置测量单元（LMU）必须能够跨多个BTS覆盖区域检测和使用反向信道（移动到网络）信号。 通过使用匹配副本相关处理与在相关之前被分成离散段的本地参考信号和参考信号，可以减轻移动时钟漂移和多普勒频移的影响，从而允许增加的处理增益。
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公开(公告)号：US20080261614A1
公开(公告)日：2008-10-23
申请号：US11736950
申请日：2007-04-18
IPC分类号： H04Q7/20
摘要： In an overlay, U-TDOA-based, Wireless Location System, LMUs typically co-located with BTSs, are used to collect radio signaling both in the forward and reverse channels. Techniques are used to compensate for sparse LMU deployments where sections of the U-TDOA service area are uplink demodulation or downlink beacon discovery limited.
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公开(公告)号：US08242959B2
公开(公告)日：2012-08-14
申请号：US11736902
申请日：2007-04-18
摘要： In an overlay, U-TDOA-based, Wireless Location System, LMUs typically co-located with BTSs, are used to collect radio signaling both in the forward and reverse channels. Techniques are used to compensate for sparse LMU deployments where sections of the U-TDOA service area are uplink demodulation or downlink beacon discovery limited.
摘要翻译： 在覆盖层中，基于U-TDOA的无线定位系统，通常与BTS共处的LMU用于在前向和反向信道中收集无线电信令。 技术用于补偿在U-TDOA服务区域的部分是上行链路解调或下行链路信标发现受限的稀疏LMU部署。
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28.发明授权公开(公告)号：US08145238B2
公开(公告)日：2012-03-27
申请号：US12909732
申请日：2010-10-21
CPC分类号： H04W64/00 , G01S5/0036 , G01S5/0226 , G01S5/10
摘要： One illustrative embodiment takes the form of a system for locating wireless transmitters employing an Orthogonal Frequency Division Multiplexing (OFDM) digital modulation scheme. The OFDM scheme comprises transmitting signal components over narrowband frequency channels spanning a wideband channel. The system includes a first receiving system configured to receive a fraction of the signal components transmitted by a first wireless transmitter to be located in a fraction of the narrowband frequency channels, and to process the fraction of the signal components to derive location related measurements. The system further includes at least a second receiving system configured to receive the fraction of the signal components transmitted by the first wireless transmitter, and to process this fraction of the signal components to derive location related measurements. The system also includes a processing system configured to use location related measurements from the first and second receiving systems to compute the location of the wireless transmitter.
摘要翻译： 一个说明性实施例采用采用正交频分复用（OFDM）数字调制方案来定位无线发射机的系统的形式。 OFDM方案包括在跨越宽带信道的窄带频率信道上发射信号分量。 该系统包括第一接收系统，该第一接收系统被配置为接收由第一无线发射机传输的信号分量的一小部分以位于窄带频率信道的一部分中，并且处理信号分量的分数以导出位置相关测量。 该系统还包括至少第二接收系统，其被配置为接收由第一无线发射机发射的信号分量的一部分，并且处理该部分信号分量以导出位置相关测量。 该系统还包括配置成使用来自第一和第二接收系统的位置相关测量来计算无线发射机的位置的处理系统。
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公开(公告)号：US20110159891A1
公开(公告)日：2011-06-30
申请号：US12648783
申请日：2009-12-29
IPC分类号： H04W4/02
摘要： For Wireless Communications Networks (WCNs) that support soft handover, cooperator receiver selection for a TDOA, AOA, TDOA/AOA, or hybrid network-based or network-overlay Wireless Location System (WLS) must contend with one or more network base stations as a serving cell. When the active set contains more than one member, two techniques for determining a set of cooperating and demodulating receivers to use in the signal collection for location estimation is disclosed. In one embodiment, the active set members are constructively reduced to a single member that is used as a proxy serving cell. In another embodiment, the information contained in the active set membership is retained and a new set of demodulating and cooperator receivers are generated based on the entire membership of the active set.
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30.发明申请公开(公告)号：US20110033002A1
公开(公告)日：2011-02-10
申请号：US12909732
申请日：2010-10-21
IPC分类号： H04L27/10
CPC分类号： H04W64/00 , G01S5/0036 , G01S5/0226 , G01S5/10
摘要： One illustrative embodiment takes the form of a system for locating wireless transmitters employing an Orthogonal Frequency Division Multiplexing (OFDM) digital modulation scheme. The OFDM scheme comprises transmitting signal components over narrowband frequency channels spanning a wideband channel. The system includes a first receiving system configured to receive a fraction of the signal components transmitted by a first wireless transmitter to be located in a fraction of the narrowband frequency channels, and to process the fraction of the signal components to derive location related measurements. The system further includes at least a second receiving system configured to receive the fraction of the signal components transmitted by the first wireless transmitter, and to process this fraction of the signal components to derive location related measurements. The system also includes a processing system configured to use location related measurements from the first and second receiving systems to compute the location of the wireless transmitter.
摘要翻译： 一个说明性实施例采用采用正交频分复用（OFDM）数字调制方案来定位无线发射机的系统的形式。 OFDM方案包括在跨越宽带信道的窄带频率信道上发射信号分量。 该系统包括第一接收系统，其被配置为接收由第一无线发射机发射的位于窄带频率信道的一部分中的信号分量的一部分，并且处理信号分量的分数以导出位置相关测量。 该系统还包括至少第二接收系统，其被配置为接收由第一无线发射机发射的信号分量的一部分，并且处理该部分信号分量以导出位置相关测量。 该系统还包括配置成使用来自第一和第二接收系统的位置相关测量来计算无线发射机的位置的处理系统。
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