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1. 发明申请

WO1995015064A2 LOW-POWER FREQUENCY-HOPPED SPREAD SPECTRUM ACKNOWLEDGEMENT PAGING SYSTEM 审中-公开
标题翻译：低功率频率传播频谱识别系统
公开(公告)号：WO1995015064A2
公开(公告)日：1995-06-01
申请号：PCT/IB1994000370
申请日：1994-11-22
申请人： NEXUS 1994 LIMITED
发明人： NEXUS 1994 LIMITED , YOKEV, Hanoch , HAREL, Haim , MEIMAN, Yehouda
IPC分类号： H04Q07/12
CPC分类号： H04W64/00 , G01S1/026 , G01S3/023 , G01S3/043 , G01S3/10 , G01S5/0009 , G01S5/021 , G01S5/04 , H04B1/713 , H04B1/7156 , H04B7/2681 , H04B7/2693 , H04L5/0007 , H04L5/0053 , H04L5/0062 , H04L5/0091 , H04W84/025 , H04W88/022 , Y02D70/164 , Y02D70/40 , Y02D70/449
摘要： An acknowledgement paging system is described which fits within the existing infrastructure of a paging network and which provides low cost manufacture and low power operation while still enabling the acknowledgement paging over long distances. The acknowledgement paging system consists of a standard paging transmitter and a plurality of remote paging units which respond to a page using frequency-hopped spread-spectrum differential bi-phase shift keying communications. The plurality of pagers are assigned to groups with each group being assigned a separate starting location in a common, repeating pseudo-random noise code which determines the frequency hops. The grouping of pagers minimizes the collisions of acknowledgment transmissions between groups and enables a large number of paging units to operate within a single geographic area. The pagers include a special double loop PLL synthesizer to produce an accurate narrow band frequency and to change or hop frequencies in a rapid fashion. The base receiving unit employs special algorithms for retrieving very low power acknowledgement paging messages in a noisy environment by using data redundancy, data interleaving, soft decoding and error correction codes to strip the bi-phase-modulated, frequency-hopped spread-spectrum digital data transmitted from the remote pocket pagers. A history of the frequency and phase drift is used during reception of the acknowledgement messages to predict the phase and frequency drift of the encoded digital information to further reduce decoding error. Signal to noise ratios are determined for each frequency hop and relatively noisy hops are discarded or minimized in a soft decoding process based redundancy of data bits.
摘要翻译：描述了一种确认寻呼系统，其适合于寻呼网络的现有基础设施，并且在远距离执行确认寻呼的同时提供低成本的制造和低功率操作。确认寻呼系统由标准寻呼发射机和使用跳频扩频差分双相移键控通信响应寻呼的多个远程寻呼单元组成。多个寻呼机被分配给组，其中每个组被分配在确定跳频的公共重复伪随机噪声码中的单独的起始位置。寻呼机的分组最小化组之间的确认传输的冲突，并且使得大量寻呼单元能够在单个地理区域内操作。寻呼机包括一个特殊的双回路PLL合成器，以产生精确的窄带频率，并以快速方式改变或跳频。基站接收单元采用特殊算法，通过使用数据冗余，数据交织，软解码和纠错码来消除双相调制的跳频扩频数字数据，在噪声环境中检索极低功率的确认寻呼消息从远程口袋传呼机传输。在接收确认消息期间使用频率和相位漂移的历史来预测编码的数字信息的相位和频率漂移以进一步减少解码错误。针对每个跳频确定信噪比，并且在基于软解码过程的数据比特冗余中丢弃或最小化相对噪声的跳。

2. 发明申请

WO1996027822A1 SYNCHRONIZATION SYSTEM FOR A SHARED CHANNEL COMMUNICATION SYSTEM 审中-公开
标题翻译：用于共享信道通信系统的同步系统
公开(公告)号：WO1996027822A1
公开(公告)日：1996-09-12
申请号：PCT/GB1996000268
申请日：1996-02-06
申请人： NEXUS 1994 LIMITED
发明人： NEXUS 1994 LIMITED , YOKEV, Hanoch , MEIMAN, Yehouda , PELEG, Shimon , YOKEV, Oren , PORAT, Boaz
IPC分类号： G04G07/02
CPC分类号： G01S1/026 , G01S3/023 , G01S3/043 , G01S3/10 , G01S5/0009 , G01S5/021 , G01S5/04 , G04G7/00 , H04B1/713 , H04B1/7156 , H04B7/2681 , H04B7/2693 , H04W64/00 , H04W88/022
摘要： A method, apparatus and system is described for distributing accurate time-of-day information from an existing telecommunications infrastructure without modifying the existing infrastructure. In particular, the system comprises a base station device which continually receives extremely accurate time-of-day information from, by way of example and not by limitation, a GPS (Global Positioning Satellite) system, a local atomic clock, or a wired or wireless time standard. The base station periodically places time-of-day information into standard paging packets for transmission over a standard paging network. The paging packets are sent over telephone lines to the paging terminal for transmission whenever a time slot for transmission becomes available. The base station device records the actual time of transmission of the paging packet containing the time-of-day information and prepares the next time-of-day packet by placing the exact transmission time of the previous time-of-day packet sent. In the receiver, an algorithm is used to extrapolate the current time-of-day based on the history of transmitted packets containing measured time-of-day information of past transmissions.
摘要翻译：描述了一种方法，装置和系统，用于从现有电信基础设施分发准确的时间信息，而不修改现有的基础设施。特别地，该系统包括基站设备，其通过示例而非限制的方式从GPS（全球卫星定位卫星），本地原子钟或有线或有线的方式持续接收非常精确的时间信息无线时间标准。基站周期性地将时间信息放置在标准寻呼分组中，以便通过标准寻呼网络传输。每当传输时隙变得可用时，寻呼分组通过电话线路发送到寻呼终端进行传输。基站装置记录包含时刻信息的寻呼分组的实际发送时间，并通过放置发送的前一时间分组的精确发送时间来准备下一个时间分组。在接收机中，使用一种算法来基于包含过去传输的测量时间信息的传输分组的历史来推断当前时刻。

3. 发明申请

WO1996025673A1 DIFFERENTIAL RANGING FOR A FREQUENCY-HOPPED REMOTE POSITION DETERMINATION SYSTEM 审中-公开
标题翻译：用于频率偏移远程位置确定系统的差分范围
公开(公告)号：WO1996025673A1
公开(公告)日：1996-08-22
申请号：PCT/GB1996000270
申请日：1996-02-06
申请人： NEXUS 1994 LIMITED
发明人： NEXUS 1994 LIMITED , YOKEV, Hanoch , PELEG, Shimon , MEIMAN, Yehouda , PORAT, Boaz
IPC分类号： G01S05/14
CPC分类号： G01S3/023 , G01S1/026 , G01S3/043 , G01S3/10 , G01S5/0009 , G01S5/02 , G01S5/021 , G01S5/04 , G01S5/14 , G01S11/02 , H04B1/713 , H04B1/7156 , H04B7/2681 , H04B7/2693 , H04W64/00 , H04W88/022
摘要： A differential ranging location system is described which uses a modified time-of-arrival technique to determine the location of a frequency-hopped spread spectrum radio signal. The transmitter simultaneously transmits two radio frequency carriers having different frequencies such that a phase difference is observed between the two carriers at a distance from the transmitter. The phase difference is proportional to the range from the transmitter that the carrier signals have observed. The two carrier signals from the single transmitter are received by at least three and in special cases four base stations which calculate the differential time of arrival based on the phase differences of the received carriers. The calculated phase differences are then sent to a central location which locates the position of the transmitter based upon a planer hyperbolic location algorithm. Since a large number of narrow band frequencies across a wide spectrum are used in a frequency hopping transmission protocol, the accuracy in determining the phase differences between the two carriers is increased and the immunity to interference is also increased.
摘要翻译：描述了差分测距定位系统，其使用修改的到达时间技术来确定跳频扩频无线电信号的位置。发射机同时发射具有不同频率的两个射频载波，使得在距离发射机一定距离的两个载波之间观察到相位差。相位差与载波信号观测到的发射机的距离成正比。来自单个发射机的两个载波信号由至少三个并且在特殊情况下被接收四个基站，其基于所接收的载波的相位差来计算差分到达时间。然后将计算的相位差发送到基于平面双曲线位置算法定位发射机的位置的中心位置。由于在跳频传输协议中使用了广泛频谱上的大量窄带频率，所以确定两个载波之间的相位差的精度增加，并且对干扰的抗扰度也增加。

4. 发明申请

WO1996024913A3 TWO-WAY MESSAGING NETWORK USING DEBIT CARDS 审中-公开
公开(公告)号：WO1996024913A3
公开(公告)日：1996-08-15
申请号：PCT/GB1996000269
申请日：1996-02-06
申请人： NEXUS 1994 LIMITED
发明人： NEXUS 1994 LIMITED , YOKEV, Hanoch , MEIMAN, Yehouda
IPC分类号： G07F07/12

5. 发明申请

WO1996025826A1 TWO-WAY PAGER HAVING PRE-RECORDED UPLINK MESSAGING 审中-公开
标题翻译：具有预先记录的上行链接消息的两条路由器
公开(公告)号：WO1996025826A1
公开(公告)日：1996-08-22
申请号：PCT/GB1996000257
申请日：1996-02-07
申请人： NEXUS 1994 LIMITED
发明人： NEXUS 1994 LIMITED , YOKEV, Hanoch , MEIMAN, Yehouda
IPC分类号： H04Q07/12
CPC分类号： H04W88/185 , H04W88/022
摘要： A two-way paging system is described which consists of a paging terminal and a plurality of remote paging units. The paging terminal is designed to receive a message from a caller and transmit the message to at least one remote paging unit. The paging terminal is also designed to receive a transmission from at least one remote paging unit and has a memory with a plurality of pre-recorded messages, parameters or destination addresses stored in the memory with each message being selectively retrievable by a unique message code. The plurality of remote paging units have a receiver for receiving a message transmitted by the paging terminal. The plurality of remote paging units also have a transmitter for transmitting a signal to the paging terminal where at least part of the signal contains a unique message code corresponding to one of the pre-recorded messages, parameters or destination addresses stored in the memory of the paging terminal. The transmission signal from the remote paging unit can be an acknowledgment message in response to a message transmitted by the paging terminal or an unsolicited message.
摘要翻译：描述了由寻呼终端和多个远程寻呼单元组成的双向寻呼系统。寻呼终端被设计为从呼叫者接收消息并将消息发送到至少一个远程寻呼单元。寻呼终端还被设计为从至少一个远程寻呼单元接收传输，并且具有存储器，其具有存储在存储器中的多个预先记录的消息，参数或目标地址，每个消息可由唯一的消息代码选择性地检索。多个远程寻呼单元具有用于接收由寻呼终端发送的消息的接收机。多个远程寻呼单元还具有用于向寻呼终端发送信号的发射机，其中信号的至少部分包含与存储在存储器中的预先记录的消息，参数或目的地地址之一相对应的唯一消息代码寻呼终端。来自远程寻呼单元的传输信号可以是响应于寻呼终端发送的消息或非请求消息的确认消息。

6. 发明申请

WO1995014936A1 DIRECTION FINDING AND MOBILE LOCATION SYSTEM FOR TRUNKED MOBILE RADIO SYSTEMS 审中-公开
标题翻译：用于移动移动无线电系统的方向寻找和移动定位系统
公开(公告)号：WO1995014936A1
公开(公告)日：1995-06-01
申请号：PCT/IB1994000372
申请日：1994-11-22
申请人： NEXUS 1994 LIMITED
发明人： NEXUS 1994 LIMITED , YOKEV, Hanoch , HAREL, Haim , MEIMAN, Yehouda , PELEG, Shimon
IPC分类号： G01S05/04
CPC分类号： H04W64/00 , G01S1/026 , G01S3/023 , G01S3/043 , G01S3/10 , G01S5/0009 , G01S5/021 , G01S5/04 , H04B1/713 , H04B1/7156 , H04B7/2681 , H04B7/2693 , H04L5/0007 , H04L5/0053 , H04L5/0062 , H04L5/0091 , H04W84/025 , H04W88/022
摘要： A special mobile radio mobile, vehicle or personal location system is described where the system operates to locate any one of the transmitters in an SMR system. The present invention operates by identifying the received signals, removing the modulation information to reconstruct a demodulated carrier and analyzing the carrier signals for multipath distortion. The multipath disruptions are removed to calculate the true incident angle of the transmitted signal at a base station. A plurality of base stations are used to simultaneously calculate the incident angle of the transmitted SMR signal and a central location calculates the most probable location of the transmitter based upon triangulation. The incident angle of the transmitted SMR signal at each base station is performed by calculating the phase differences of the incoming voice signal with phase ambiguity minimized by using a plurality of dipole antennas spaced at an irregular distance to eliminate phase ambiguity error.
摘要翻译：描述了一种特殊的移动无线电移动，车辆或个人定位系统，其中系统操作以定位SMR系统中的任何一个发射机。本发明通过识别接收到的信号，去除调制信息来重建解调载波并分析载波信号进行多径失真来进行操作。去除多径中断以计算基站处的发射信号的真实入射角。多个基站被用于同时计算发射的SMR信号的入射角，并且中心位置基于三角测量来计算发射机的最可能的位置。通过使用以不规则距离间隔的多个偶极天线来计算相位模糊度最小化的输入语音信号的相位差来执行每个基站处发送的SMR信号的入射角，以消除相位模糊误差。

7. 发明申请

WO1995014935A1 MULTI-PATH RESISTANT FREQUENCY-HOPPED SPREAD SPECTRUM MOBILE LOCATION SYSTEM 审中-公开
标题翻译：多路阻抗频率传播频谱移动定位系统
公开(公告)号：WO1995014935A1
公开(公告)日：1995-06-01
申请号：PCT/IB1994000371
申请日：1994-11-22
申请人： NEXUS 1994 LIMITED
发明人： NEXUS 1994 LIMITED , YOKEV, Hanoch , HAREL, Haim , MEIMAN, Yehouda , PELEG, Shimon
IPC分类号： G01S05/04
CPC分类号： H04W64/00 , G01S1/026 , G01S3/023 , G01S3/043 , G01S3/10 , G01S5/0009 , G01S5/021 , G01S5/04 , H04B1/713 , H04B1/7156 , H04B7/2681 , H04B7/2693 , H04L5/0007 , H04L5/0053 , H04L5/0062 , H04L5/0091 , H04W84/025 , H04W88/022 , Y02D70/164 , Y02D70/40 , Y02D70/449
摘要： A multi-path resistant frequency-hopped spread spectrum mobile vehicle or personal location system is described which provides low cost manufacture and low power operation while still enabling the accurate location of the mobile unit over long distances and inmoderate to severe mutli-path conditions. The frequency-hopped spread spectrum mobile vehicle or personal location system consists of a cenral station, a plurality of base stations and a plurality of mobile transmitters which transmit using a frequency-hopped spread-spectrum differential bi-phase shift keying communication signal. Frequency Shift Keying modulation may also be used. Each of the plurality of base stations include an array of receiving dipole antennas and employs special algorithms for retrieving very low power frequency-hopped spread spectrum signals in a noisy and multi-path environment. The base stations use computational algorithms for determining the phase difference between each of receiving dipole antennas to determine the direction of the transmitter relative to the location of the respective base station. The multiple direction of arrival angles of the received signal at each base station are corrected based on an n-dimensional ambiguity space to locate most probable angles of arrival. The ambiguity space plot is used to eliminate erroneous comparisons of dissimilar phases of the incoming signal. The most probable values are then tracked over multiple frequency hops and a histogram analysis of the strongest surviving angles of arrival is performed. The two peaks of the histogram are used as the two mots probable directions of arrival. Each base station then communicates the two relative directions of the transmitter to a central station where the location of the transmitter is determined by triangulation. The direction of arrival angles from the multiple base stations are summed in a least mean square approach to find a single direction of arrival which is then plotted on a gnomonic projection to correct for the curvature of the earth.
摘要翻译：描述了一种多路径抗跳频扩频移动车辆或个人定位系统，其提供低成本制造和低功率操作，同时仍然能够实现长距离移动单元的精确定位，并且能够在严重的多路径条件下进行。跳频扩频移动车辆或个人定位系统由使用跳频扩频差分双相移键控通信信号发送的中央站，多个基站和多个移动发射机组成。也可以使用频移键控调制。多个基站中的每一个包括接收偶极天线的阵列，并且采用专门的算法来在噪声和多径环境中检索非常低功率的跳频扩频信号。基站使用计算算法来确定每个接收偶极天线之间的相位差，以确定发射机相对于相应基站的位置的方向。基于n维模糊度空间来校正每个基站处的接收信号的多个到达角度方向，以定位最可能的到达角度。模糊空间图用于消除输入信号的不同相位的错误比较。然后通过多个跳跃跟踪最可能的值，并且执行最强幸存的到达角度的直方图分析。直方图的两个峰值被用作两个可能的到达方向。然后，每个基站将发射机的两个相对方向传送到中心站，其中发射机的位置由三角测量确定。来自多个基站的到达角度的方向以最小均方的方法相加以找到单个到达方向，然后将其绘制在一个gnomonic投影上以校正地球的曲率。

8. 发明授权

US5546422A Method of transmitting low-power frequency hopped spread spectrum data 失效
标题翻译：低功率跳频扩频数据传输方法
公开(公告)号：US5546422A
公开(公告)日：1996-08-13
申请号：US362114
申请日：1994-12-22
申请人： Hanoch Yokev , Haim Harel , Yehouda Meiman
发明人： Hanoch Yokev , Haim Harel , Yehouda Meiman
IPC分类号： G01S1/02 , G01S3/02 , G01S3/04 , G01S3/10 , G01S5/00 , G01S5/02 , G01S5/04 , G01S19/25 , G01S19/27 , H04B1/713 , H04B1/7156 , H04B7/26 , H04W64/00 , H04W84/02 , H04W88/02
CPC分类号： H04W64/00 , G01S1/026 , G01S3/023 , G01S3/043 , G01S3/10 , G01S5/0009 , G01S5/021 , G01S5/04 , H04B1/713 , H04B1/7156 , H04B7/2681 , H04B7/2693 , H04L5/0053 , H04W84/025 , H04L5/0007 , H04L5/0062 , H04L5/0091 , H04W88/022
摘要： An acknowledgement paging system is described which fits within the existing infrastructure of a paging network and which provides low cost manufacture and low power operation while still enabling the acknowledgement paging over long distances. The acknowledgement paging system consists of a standard paging transmitter and a plurality of remote paging units which respond to a page using frequency-hopped spread-spectrum differential bi-phase shift keying communications. The plurality of pagers are assigned to groups with each group being assigned a separate starting location in a common, repeating pseudo-random noise code which determines the frequency hops. The grouping of pagers minimizes the collisions of acknowledgment transmissions between groups and the enables a large number of paging units to operate within a single geographic area. The pagers include a special double loop PLL synthesizer to produce an accurate narrow band frequency and to change or hop frequencies in a rapid fashion. The base receiving unit employs special algorithms for retrieving very low power acknowledgement paging messages in a noisy environment by using data redundancy, data interleaving, soft decoding and error correction codes to strip the bi-phase-modulated, frequency-hopped spread-spectrum digital data transmitted from the remote pocket pagers. A history of the frequency and phase drift is used during reception of the acknowledgement messages to predict the phase and frequency drift of the encoded digital information to further reduce decoding error. Signal to noise ratios are determined for each frequency hop and relatively noisy hops are discarded or minimized in a soft decoding process based redundancy of data bits.
摘要翻译：描述了一种确认寻呼系统，其适合于寻呼网络的现有基础设施，并且在远距离执行确认寻呼的同时提供低成本的制造和低功率操作。确认寻呼系统由标准寻呼发射机和使用跳频扩频差分双相移键控通信响应寻呼的多个远程寻呼单元组成。多个寻呼机被分配给组，其中每个组被分配在确定跳频的公共重复伪随机噪声码中的单独的起始位置。寻呼机的分组使组之间的确认传输的冲突最小化，并且使得大量寻呼单元能够在单个地理区域内操作。寻呼机包括一个特殊的双回路PLL合成器，以产生精确的窄带频率，并以快速方式改变或跳频。基站接收单元采用特殊算法，通过使用数据冗余，数据交织，软解码和纠错码来消除双相调制的跳频扩频数字数据，在噪声环境中检索极低功率的确认寻呼消息从远程口袋传呼机传输。在接收确认消息期间使用频率和相位漂移的历史来预测编码的数字信息的相位和频率漂移以进一步减少解码错误。针对每个跳频确定信噪比，并且在基于软解码过程的数据比特冗余中丢弃或最小化相对噪声的跳。

9. 发明授权

US5519718A Remote unit for use with remote pager 失效
标题翻译：遥控单元，用于远程寻呼机
公开(公告)号：US5519718A
公开(公告)日：1996-05-21
申请号：US363288
申请日：1994-12-22
申请人： Hanoch Yokev , Haim Harel , Yehouda Meiman
发明人： Hanoch Yokev , Haim Harel , Yehouda Meiman
IPC分类号： G01S1/02 , G01S3/02 , G01S3/04 , G01S3/10 , G01S5/00 , G01S5/02 , G01S5/04 , G01S19/25 , G01S19/27 , H04B1/713 , H04B1/7156 , H04B7/26 , H04W64/00 , H04W84/02 , H04W88/02
CPC分类号： H04W64/00 , G01S1/026 , G01S3/023 , G01S3/043 , G01S3/10 , G01S5/0009 , G01S5/021 , G01S5/04 , H04B1/713 , H04B1/7156 , H04B7/2681 , H04B7/2693 , H04L5/0053 , H04W84/025 , H04L5/0007 , H04L5/0062 , H04L5/0091 , H04W88/022
摘要： An acknowledgement paging system is described which fits within the existing infrastructure of a paging network and which provides low cost manufacture and low power operation while still enabling the acknowledgement paging over long distances. The acknowledgement paging system consists of a standard paging transmitter and a plurality of remote paging units which respond to a page using frequency-hopped spread-spectrum differential bi-phase shift keying communications. The plurality of pagers are assigned to groups with each group being assigned a separate starting location in a common, repeating pseudo-random noise code which determines the frequency hops. The grouping of pagers minimizes the collisions of acknowledgment transmissions between groups and the enables a large number of paging units to operate within a single geographic area. The pagers include a special double loop PLL synthesizer to produce an accurate narrow band frequency and to change or hop frequencies in a rapid fashion. The base receiving unit employs special algorithms for retrieving very low power acknowledgement paging messages in a noisy environment by using data redundancy, data interleaving, soft decoding and error correction codes to strip the bi-phase-modulated, frequency-hopped spread-spectrum digital data transmitted from the remote pocket pagers. A history of the frequency and phase drift is used during reception of the acknowledgement messages to predict the phase and frequency drift of the encoded digital information to further reduce decoding error. Signal to noise ratios are determined for each frequency hop and relatively noisy hops are discarded or minimized in a soft decoding process based redundancy of data bits.
摘要翻译：描述了一种确认寻呼系统，其适合于寻呼网络的现有基础设施，并且在远距离执行确认寻呼的同时提供低成本的制造和低功率操作。确认寻呼系统由标准寻呼发射机和使用跳频扩频差分双相移键控通信响应寻呼的多个远程寻呼单元组成。多个寻呼机被分配给组，其中每个组被分配在确定跳频的公共重复伪随机噪声码中的单独的起始位置。寻呼机的分组使组之间的确认传输的冲突最小化，并且使得大量寻呼单元能够在单个地理区域内操作。寻呼机包括一个特殊的双回路PLL合成器，以产生精确的窄带频率，并以快速方式改变或跳频。基站接收单元采用特殊算法，通过使用数据冗余，数据交织，软解码和纠错码来消除双相调制的跳频扩频数字数据，从而在嘈杂的环境中检索极低功率的确认寻呼消息从远程口袋传呼机传输。在接收确认消息期间使用频率和相位漂移的历史来预测编码的数字信息的相位和频率漂移以进一步减少解码错误。针对每个跳频确定信噪比，并且在基于软解码处理的数据比特冗余中丢弃或最小化相对噪声的跳。

10. 发明授权

US5712867A Two-way paging apparatus having highly accurate frequency hopping synchronization 失效
标题翻译：具有高精度跳频同步的双向寻呼装置
公开(公告)号：US5712867A
公开(公告)日：1998-01-27
申请号：US398372
申请日：1995-03-03
申请人： Hanoch Yokev , Yehouda Meiman , Shimon Peleg , Oren Yokev , Boaz Porat
发明人： Hanoch Yokev , Yehouda Meiman , Shimon Peleg , Oren Yokev , Boaz Porat
IPC分类号： G01S1/00 , G01S1/02 , G01S3/02 , G01S3/04 , G01S3/10 , G01S5/00 , G01S5/02 , G01S5/04 , G01S19/48 , G04G7/00 , H04B1/713 , H04B1/7156 , H04B7/26 , H04W64/00 , H04W88/02 , H04W88/18 , H04K1/04 , H04J3/06 , H04L7/027
CPC分类号： G01S1/026 , G01S3/023 , G01S3/043 , G01S3/10 , G01S5/0009 , G01S5/021 , G01S5/04 , G04G7/00 , H04B1/713 , H04B1/7156 , H04B7/2681 , H04B7/2693 , H04W64/00 , H04W88/022
摘要： A method, apparatus and system is described for distributing accurate time-of-day information from an existing telecommunications infrastructure without modifying the existing infrastructure. In particular, the system comprises a base station device which continually receives extremely accurate time-of-day information from, by way of example and not by limitation, a GPS (Global Positioning Satellite) system, a local atomic dock, or a wired or wireless time standard. The base station periodically places time-of-day information into standard paging packets for transmission over a standard paging network. The paging packets are sent over telephone lines to the paging terminal for transmission whenever a time slot for transmission becomes available. The base station device records the actual time of transmission of the paging packet containing the time of day information and prepares the next time-of-day packet by placing the exact transmission time of the previous time-of-day packet sent. In the receiver, an algorithm is used to extrapolate the current time-of-day based on the history of transmitted packets containing measured time-of-day information of past transmissions.
摘要翻译：描述了一种方法，装置和系统，用于从现有电信基础设施分发准确的时间信息，而不修改现有的基础设施。特别地，该系统包括基站设备，其通过示例而不是限制的方式从GPS（全球定位卫星）系统，本地原子码头或有线或无线时间标准。基站周期性地将时间信息放置在标准寻呼分组中，以便通过标准寻呼网络传输。每当传输时隙变得可用时，寻呼分组通过电话线路发送到寻呼终端进行传输。基站装置记录包含时间信息的寻呼分组的实际发送时间，并且通过放置发送的前一时间分组的精确发送时间来准备下一个时间分组。在接收机中，使用一种算法来基于包含过去传输的测量时间信息的传输分组的历史来推断当前时刻。

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