CN101163983A - 卫星定位辅助通信***选择 - Google Patents
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/14—Receivers specially adapted for specific applications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/23—Testing, monitoring, correcting or calibrating of receiver elements
- G01S19/235—Calibration of receiver components
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
- G01S19/25—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS
- G01S19/254—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS relating to Doppler shift of satellite signals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
- G01S19/25—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS
- G01S19/256—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS relating to timing, e.g. time of week, code phase, timing offset
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/34—Power consumption
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/0009—Transmission of position information to remote stations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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- Position Fixing By Use Of Radio Waves (AREA)
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Abstract
一种具有可调谐收发器的软件通信设备,能够通过无线网络接收卫星定位数据和通信网络数据,其中,定位数据被用于有效地进行通信网络或者通信链路到网络的连接,所述软件通信设备被用来减少用于获得GPS卫星和确定位置的时间。
Description
技术领域
本发明总体涉及移动通信***,具体地讲,本发明涉及组合的卫星定位***(SATPS)和通信***。
背景技术
卫星定位***(SATPS),例如由美国政府所维持的全球定位***(GPS),是基于无线电导航。GPS***是基于卫星的导航***,其具有24个卫星加上轨道备件的网络,绕地球之上11000海里轨道运行,处于6个均匀分布的轨道上。每一个GPS卫星每12小时绕地球轨道一周。
GPS卫星的主要功能是用作为时钟。每个GPS卫星从卫星上的10.23MHz的铯原子时钟得到其信号。每个GPS卫星传输扩展频谱信号,具有其自己单独的伪噪声(PN)代码。通过使用不同的PN编码序列在同一频谱上传输几个信号,GPS卫星可以在无互相干扰的情况下共享同一带宽。GPS***中所使用的代码为1023个比特长,并且按每秒1.023兆比特的速率发送,从而得到时间标记,有时将其称为大约每微秒一次的“时间基片”。该序列每毫秒重复一次,并且被称为粗采集代码(C/A代码)。每第20个周期,该代码可以改变相位,并且被用于编码1500比特长的消息,所述消息包括针对其它GPS卫星的“天文年历”数据。
有由GPS当局指定的32个PN代码。这些PN代码中的24个属于轨道中的当前GPS卫星,并且把第25个PN代码选定为不将其赋予任何GPS卫星。其余PN代码为备用代码,可以被用于新GPS卫星中以取代旧的或出故障的单元。GPS接收器使用不同的PN序列,可以搜索用于寻找匹配的信号频谱。如果GPS接收器找到匹配,则它已经识别生成那个信号的GPS卫星。
基于地面的GPS接收器使用无线电范围测量方法的变体,其被称为三边测量,以确定基于地面的GPS接收器的位置。GPS位置确定与过去的无线电方向发现(RDF)技术的不同之处在于:无线电信标不再是固定的;它们是卫星,当它们绕地球轨道运行时,以大约每秒1.8英里的速度移过空间。由于是基于空间的,所以所述GPS***能够被用于使用诸如三边测量的方法来实际建立地球上任何点的位置。
三边测量方法依赖于从GPS卫星获取时间信号的GPS接收单元。由于知道实际时间以及将其与从GPS卫星所接收的时间加以比较,所以接收器可以计算距GPS卫星的距离。例如,如果GPS卫星与接收器相距12000英里,则必须把接收器定位在距该GPS卫星12000英里的半径所定义的位置球体上的某个地方。如果GPS接收器然后确定第二GPS卫星的位置,则其可以根据围绕第二GPS卫星的位置球体来计算接收器的地点。两个球体相交,并且与定位在所述位置圆周内某处的GPS接收器形成圆周。通过确定距第三GPS卫星的距离,该GPS接收器可以预测(project)围绕第三GPS卫星的位置球体。第三GPS卫星的位置球体然后将仅在两个点与前两个GPS卫星的位置球体的相交所产生的位置圆周相交。通过确定再一个GPS卫星的位置球体,其位置球体将与两个可能的位置点之一相交,该GPS接收器的精确位置被确定为定位在地球上的位置点。还把第四GPS卫星用于解决接收器中的时钟误差。因此,也可以确定精确的时间,因为仅仅存在一个可以说明所有GPS卫星的位置的时间偏移量。三边测量方法可以产生30米量级的位置精度,然而,由于信号强度和多路径反射,GPS位置确定的精度可能劣化。
GPS接收器可同时接收11个卫星。在某些环境中,例如在峡谷中,某些GPS卫星可能会被阻挡,就位置信息而言,GPS位置确定***可以依赖于具有较弱信号强度的GPS卫星,例如接近地平线的GPS卫星。在其它情况下,头顶上的树叶可能会减弱由GPS接收器单元所接收的信号强度。在任何一种情况下,均可能减弱信号强度或者全部阻挡信号强度。在这样的情况下,可使用辅助信息以帮助位置确定。
存在着多种使用无线电频谱进行通信的方式。例如,在频分多路存取(FDMA)***中,把频带划分成一系列频率时隙,并且向不同的发射器分配不同的频率时隙。在时分多路存取(TDMA)***中,把每个发射器可以广播的时间限制在时间时隙中,从而发射器可以一条接一条地发送它们的消息,并且仅在它们所分配的时段期间进行发送。使用TDMA,每个发送器进行发送时的频率可以为固定频率,或者可以是连续变化的(频率跳变)。
GPS***当前使用扩展频谱技术以把其数据传递于地面单元。在卫星定位***中使用扩展频谱是特别有利的。扩展频谱技术可使GPS接收器单元在单一频率上运作,从而节省了在使用多个频率的情况下转换和调谐其它频带所需的额外的电子装置。扩展频谱还最小化了GPS接收器的功耗要求。例如,GPS发送器要求50瓦特左右,并且可容忍相当大的干扰。
最近的移动通信设备,例如蜂窝电话,已经并入了GPS接收器技术,其中使用多个专用半导体芯片实现通信部分、以及使用其它专用半导体芯片实现移动通信设备的GPS部分。通常,移动通信设备能够使用采用了不同标准的多个通信***之一,例如可以在Amps模拟蜂窝***、CDMA数字蜂窝***、或者GSM数字蜂窝***上进行通信的Motorola的StarTac。
当前,移动通信设备使用强力算法来确定如何在多个通信***之间进行搜索。通常,这些算法要求相当大的能量,从而通常导致低效。
因此,存在着对用于改进通信设备的能力以快速和有效地定位可用于通信的通信***的***与方法的需求。
发明内容
符合本发明的方案提供了一种通信设备,所述通信设备具有使用位置信息来更有效地访问通信网络的能力,和/或使用通信设备的GPS部分来更有效地采集GPS信号的能力。通过把通信设备的位置与通信网络边界以及具体元素的地理数据库相组合,移动设备可以把其搜索限定在相应于其局部位置的网络标准和频率。通过预先知道而不试图与那些已经知道其访问要被限制的网络进行交互,所以还可以节省时间和能量。这样的通信设备可以具有实现RF接收器的通用硬件部分的通用硬件,以及实现通信功能和GPS功能的软件。这样的接收器判断通信设备例如蜂窝电话是否可以访问通信网络。这个方案使用具有与通信网络相关的地理信息的定位数据,以仅仅搜索小区站点(cell site)频率和通信设备附近的通信网络。在另一种方案中,通信网络向GPS功能提供辅助信息,从而减少用于确定通信设备的地点的时间。通信设备可装备有GPS接收器,或经由另一网络从其它设备接收定位信息。
当考察下列各图以及详细的描述时,对于本领域技术人员来说,本发明的其它***、方法、特征以及优点将变得清楚。旨在把所有这样的附加***、方法、特征以及优点包括在这一描述中,处于本发明的范围内,并由所附权利要求加以保护。
附图说明
各图中的部件不必呈实际比例,而重点在于说明本发明的原理。在这些图中,相同的参照数字指示所有不同图中的相对应的部分。
图1说明了移动站,该移动站具有能够与多个通信网络进行通信的软件实现的卫星定位接收器。
图2为图1的移动站的方框图。
图3为图2的移动站的存储器的存储器示意图。
图4为图2的控制器功能的存储器分割示意图。
图5为具有多个RF芯片的可配置带宽处理器的方框图。
图6为由图2的移动站所执行的位置确定方法的流程图。
图7为图2的移动站使用地理信息来选择和访问通信网络的流程图。
具体实施方式
与先前所讨论的已知的方案不同,移动站能够使用卫星定位数据以及与不同通信网络相关的数字地理数据,从而有助于有效和快速地获得通信***,或者使用通信***来迅速地获得GPS卫星。首先转向图1,100表示移动站102,其具有能够与多个通信网络104和106进行通信的软件实现的卫星定位接收器。所述软件实现的卫星定位接收器可以为可编程硬件与共享存储器的集合,这种可软件配置的数字信号处理器被连接到存储器。可以执行预编程的指令集合,以把可编程硬件和共享存储器配置为通信功能和/或GPS功能,例如为实现移动站102的软件定义射频和GPS功能。
多个卫星108、110以及114群集地绕地球轨道运行。这样的卫星群集的例子是由美国政府运作的全球定位***(GPS)。卫星108、110以及112传输可以在诸如移动站102的GPS使能设备处接收的定位信号116、118以及120。移动站102还可以与诸如例子104和106的不同的无线网络进行通信。移动站的例子可以包括:蜂窝电话、个人数字助手(PDA)、传呼机、计算机、或其它便携式数字设备。每一个通信网络可以使用唯一的信号122和124与移动站102进行通信。由不同通信网络所使用的唯一信号的例子是不同类型的蜂窝网络通信标准(GSM;TDMA;800MHz AMPS;800MHz NAMPS;TACS;800MHz、1900MHz CDMA)。
在图2中,描述了图1的移动站102的框图200。移动站102具有耦合于GPS天线204和无线网络天线206的可调谐收发器202。在其它实施例中,可以使用在GPS定位信号和通信网络信号之间调谐的单一天线方案。
也可以把可调谐接收器202耦合于控制器208。可以把控制器208耦合于可调谐接收器202、存储器210、输入设备212、显示器214、编码译码器216。可以把编码译码器216耦合于控制器208、扬声器218以及麦克风220。在被调谐为接收GPS信号的可调谐收发器202处,经由GPS天线204,接收GPS信号。控制器208接收并处理原始GPS定位数据,并且移动站102的地点被确定。在一个可选的实施例中,移动站102的地点可以通过用户被预先加载或者经由诸如蓝牙或801.11网络从GPS服务器或者甚至另外的无线设备中接收。在其它一些实施例中,可以使用通过诸如微处理器的公共控制器所处理的接收信号,来在两个分离的接收器或收发器之间转换通信和GPS信号。
可以经由软件把控制器208配置为具有通信功能和GPS功能。可以在初始化期间访问包含在存储器210中的软件,以把移动站102启动作为执行通信功能的通信设备,或者启动作为执行GPS功能的GPS接收器。在又一个实施例中,可以对硬件进行配置,使得可通过复用或者共享其它公共硬件例如存储器210的区域和可调谐收发器202来同时执行通信功能和GPS功能两者。控制器208还可以配置可调谐接收器202以从通信***或GPS***中接收数据。
使用所确定地点控制器208可以存取包含在存储器210中的数字地理数据。存储器210中的数字地理数据可以具有与不同地理位置相关的通信网络信息。然后,可以使用由控制器208所存取的通信网络信息以选择将调谐可调谐收发器202的通信网络。一旦被调谐至所选择的通信网络,则控制器208可以激活显示器214上的图形符号,该图形符号指示与通信网络的链接。
一旦建立了与通信网络的连接,则使用经由编码译码器216编码和译码的音频数据进行呼叫。在麦克风220处接收音频信号,并由编码译码器216对其数字地进行编码,以在通信网络上进行通信。控制器208把在可调谐收发器202处所接收的数字通信信号传递于编码译码器216,在编码译码器216处把它们从数字信号译码为音频信号。然后,把音频信号传递于扬声器218。在其它一些实施例中,可能的是,在通信网络中建立的定位链接是通信链接,例如为使用802.11或UWB标准建立的链接。
转向图3,图3描述了图2的移动站102的存储器210的存储器示意图。存储器210可以为随机存取存储器(RAM)、只读存储器(ROM)、电子可编程存储器(EPROM、EEPROM)、或者数字存储器的组合。存储器也可以为光存储器,例如紧致盘(CD)中所发现的光存储器,或者类似的使用激光可读的存储器。
存储器210可以具有用于存储软件的区域,称为程序空间302,其控制移动站102的操作。存储器210的另一个区域可用于数据输入和数据输出缓冲,称为I/O空间304。可以把数字地理数据存储在存储器210中的映像数据306地点中。可以为通信网络数据308保留存储器210的另一个区域,该区域把小区站点(cell site)信息与数字地理数据相关联。可以通过网络把数字地理数据下载于存储器中,或者将它们包含在可拆卸存储器芯片中,例如将它们包含在由GPS图表标绘仪所使用的可拆卸存储器芯片中。
在图4中,描述了***存储器210的图400,即移动站102的存储器的划分。图400呈矩阵形式,具有由沿坐标轴所列的不同功能(通信、GPS、共享、以及初始化程序)所使用的子程序。单位402表示可以在通信功能、GPS功能以及初始化程序功能之间共享存储器中的输入/输出(I/O)区域。通常把输入/输出(I/O)区域用于存储所捕获的原始数据,并且可以实现作为接收/传输数据缓冲器。这一数据可以已经具有在数字域中在被处理数据之前被去除的载波信号。这些数据可以为几MHz的中频,而不是处于GHz范围内的典型的载波频率。如果GPS功能和通信功能不同时为处理信号,则也可以把I/O存储器用作为不同功能之间共享的缓冲器。把存储器进一步分割成程序空间,程序空间具有低水平的处理程序,例如用于算法处理的低水平数学处理以及公共信号处理404的低水平处理程序,这些低水平的处理程序可以再一次在通信功能、GPS功能以及初始化程序之间共享。
通信软件可以具有把软件加载和定位于其中的存储器区域,以供通信功能和GPS功能加以使用,如框406所示。这样的软件的例子可以包括对包含在存储器中的数据的预处理。通信功能和GPS功能两者执行许多类似的任务。例如,在它们实现关联之前,两种无线电可以需要在所俘获的数字信号上进行额外的处理。这个额外的处理可能要求额外的调制、IIR或FIR滤波的应用、使用频域方法的窄带噪音分析。在可使存储器中的软件得以共享的软件定义通信设备的通信功能或GPS功能中,执行这些任务的低水平的数学函数是相同的。而且,通信功能和GPS功能均可以通过把流入的数据与参照符号加以关联来执行检测,并且还可以共享针对那些可以由通信功能和GPS功能两者共享的操作的低水平的功能。
类似地,GPS功能可以具有存储器408的针对GPS具体软件的专用区域,所述软件可通过对来自卫星的地点消息或针对其它网络的辅助消息的采集来进行地点确定。由单位410所示的存储器的另一个区域可专门用于其它功能的初始化以及对存储器进行配置。存储器可以为随机存取型存储器或者只读永久型存储器(包括电子可编程存储器和智能卡)。存储在这一存储器中的软件的类型的例子可以包括初始化用于实现通信功能的可配置硬件的逻辑、初始化用于实现GPS功能的可配置硬件的逻辑、以及初始化GPS功能和通信功能之间的通信的逻辑。
存储器还可以具有针对数据库412的区域,该区域包括诸如蜂窝小区地点的地理信息。可以在移动站102制造时安装所述数据库,或者也可以经由网络或者经由诸如个人计算机上的串行总线连接、蓝牙连接、或类似的点到点或点到多点通信方案的用户接口来接收初始数据,并且周期性地更新。
现在转向图5,该图描述了可调谐收发器202中耦合于多个RF芯片的带宽处理的方框图。通常,数字信号的处理出现在两个部分中。第一部分为从RF载波中去除信号的RF处理。RF处理可以发生在专用芯片中,通常将其称为RF芯片。可以把RF芯片502、504以及506连接于各自的天线,也可以共享天线,其取决于实现方案。还把RF芯片502、504以及506耦合于基带处理器508,一旦去除了RF载波,基带处理器508便处理数字信号。通过具有由采用不同RF芯片运作的控制器配置的基带处理器508,来实现资源的节省。在其它实现方案中,RF芯片,例如用于GPS、蓝牙、蜂窝、以太网和WiFi的RF芯片,可以与可配置的基带处理器接口。
在图6中,说明了由图2的移动站所执行的位置确定方案的流程图600。这一流程图开始于602,判断通信链接状态604。在蜂窝通信网络中,通信设备的通信功能可以搜寻由一个或多个基站所提供的通信链接。一旦标识出这一通信链接,则可以出现移动站102和网络(交换器和/或服务器)之间的通信。该网络可以提供有助于快速位置确定的有用信息606。所述有用信息的例子可以包括基站的地点,有时将其称为小区塔(cell tower)。其它有用信息还可以包括可以或不可以与GPS网络同步的精确时间。
如果可以得到有用的信息606,则根据基站的地点,把位置确定限制于初始地点和卫星Doppler 608。也可以使用所接收的精确时间来更新局部时间估计610。然后,可以构造代码阶段范围,只要时间足够精确612。然后,如果可以得到有用的信息,则使用所限制代码阶段范围来执行GPS搜寻614。如果不可以得到有用的信息606,则在不使用额外辅助信息的情况下,执行传统的GPS搜寻614。当在通信设备中由GPS功能执行位置确定时,可以使用天文年历数据、星历表数据、和/或移动站102的地点来修改存储器616。
在图6中,描述了确定存取哪个通信网络的由图2的移动站102所执行的网络存取方案的流程图600。该流程图开始于602,可调谐收发器202被调谐接收GPS信号。接收GPS信号并且确定移动站的位置604。然后,控制器208使用所确定的GPS存取数字地理数据库606。搜索用于与数字地理数据相关的通信网络数据的数据库608。如果可以得到通信网络数据610,则接下来,控制器存取与地理数据库相关的通信网络数据,以标识最初试图存取什么网络和频率,以便建立通信链接712。然后,在步骤712,控制器208判断是否可以得到将由移动站102存取的通信网络。如果可以得到通信网络208,则控制器针对将加以存取的最近的网络,配置可调谐收发器712。在蜂窝网络的情况下,其将为与最近基站相关的频率。
如果不可以到达最近的通信网络(即,不能建立链接)714,则进行检查,以判断是否存在任何其它通信网络或通信网络中的小区站点处于范围之内716。如果存在其它通信网络或小区站点处于范围之内,则标识下一个最近者712,而且控制器208把收发器202调谐至这些频率716。如果建立了与通信网络的链接,则完成处理720。
如果在步骤712或718中断定通信不可得,则不调谐收发器,并且可以将其置为睡眠模式,以保存能量722。可以为睡眠期设置计时器724,然后可以再次确定GPS位置704。睡眠期可以仅针对通信网络,而在预先确定的周期期间收发器是警醒的,以接收和处理地点信息。
可以按硬件、软件、或者硬件与软件的组合来实现图6的流程图的一部分和图6。可以作为存储器中的指令来实现本发明的各个方面,本领域技术人员将会意识到,也可以把符合本发明的***与方法的全部或一部分存储在其它机器可读媒体中,或者从其它机器可读媒体中读取,例如其它机器可读媒体为诸如硬盘、软盘以及CD-ROM的辅助存储器;从网络所接收的信号;或者当前已知的或以后所开发的其它形式的ROM或RAM。
在本实施例中,已把移动站102描述为可由软件加以配置的硬件的公共集合,以用作具有通信功能和GPS功能两者的软件定义无线电的功能。在可选实施例中,移动站102可以为通信设备,该通信设备具有实现通信功能的专用硬件,以及用于实现GPS功能的其它硬件。在又一些其它实施例中,可以实现不同程度的硬件重新使用。在其它实现方案中,用于改善连接时间和为了进行以上所讨论位置确定所需要的时间的方案可以在具有某种类型GPS功能的通信设备的任何时刻来实现,并且直接或间接地对地理数据库进行存取。
以上,为了说明和描述目的而给出了实现方案的描述。其不旨在对本发明进行穷举性的描述,也不旨在把所要求的本发明限制在所公开的精确形式。根据以上的描述,对本发明的各种修改与变化是可能的,也可以通过对本发明的实践获知这些可能的修改与变化。例如,所描述的实现方案包括软件,但也可以按硬件与软件的组合,或者只使用硬件来实现本发明。还应注意,该实现方案在各***之间可以改变。权利要求以及等同物定义了本发明的范围。
相关申请的交叉参考
本申请要求2004年12月22日申请的美国非临时专利申请序号为11/022294、名为“Satellite Positioning Aided Communication SystemSelection”的优先权,所述美国非临时专利申请为A.Pande、Lionel J.Garin、K.Chadha、L.Peng、G.Zhang、N.Vantalon & Gregory B.Turetzly于2004年7月3日申请的美国专利申请10/855507、名为“Aided LocationCommunication System”的继续部分,而该美国专利申请的继续部分为A.Pande、Lionel J.Garin、K.Chadha、L.Peng、G.Zhang、N.Vantalon &Gregory B.Turetzly于2003年5月22日申请的和2003年12月4日公布的PCT专利申请PCT/US03/16308、名为“Search Domain Reducing FrequencyTransfer In a Multi-Mode GPS Used With Wireless Network”的继续部分,而该PCT专利申请的继续部分要求L.Garin、L.Peng、G.Zhang & N.Vantalon在2002年5月22日申请的并且在2004年1月27日作为美国专利号US6684158授权的名为“Search Domain Reducing Frequency Transfer In a Multi-ModeGPS Used With Wireless Networks”的专利申请序号为10/155,614的继续部分的优先权,而该专利申请的继续部分要求2001年2月28日提出的并且作为美国专利申请序号为6427120的于2002年7月30日授权的由AshutoshPande、Lionel J.Garin、Kanwar Chadha & Gregory B.Turetzly申请的专利申请序号为09/795,871、名为“Information Transfer In a Multi-ModeGPS Used With Wireless Networks”的优先权,将所有这些专利申请并入此处以作参考。
Claims (25)
1.一种设备,包括:
接收器,可在定位信号和通信网络信号的接收之间加以调谐;
存储器,具有与至少一个通信网络相关联的地理数据;以及
控制器,耦合于接收器,以当接收器接收定位信号时,从接收器接收定位数据,其中,存取存储器,以检索存取该至少一个通信网络的参数。
2.根据权利要求1所述的设备,其中,通过控制器,在接收器处接收地理数据,并且把地理数据存储在存储器中。
3.根据权利要求1所述的设备,其中,可通过软件配置控制器,以将其用作处理定位信号的卫星定位设备和处理通信网络信号的通信设备。
4.根据权利要求1所述的设备,包括耦合于接收器的公共天线。
5.根据权利要求1所述的设备,其中,接收器为收发器。
6.根据权利要求1所述的设备,包括:
计时器,当所述设备不可到达所述至少一个通信网络时,其可配置用于由控制器设置的预定时间段。
7.根据权利要求1所述的设备,其中,地理数据具有小区站点信息。
8.根据权利要求7所述的设备,其中,地理数据还包括:
与小区站点相关联的多个频率。
9.根据权利要求1所述的设备,其中,接收器还包括:
第一RF芯片,与定位信号相关联;
第二RF芯片,与通信网络信号相关联;以及
基带处理器,其可配置用于从第一RF芯片接收定位信号,然后从第二RF芯片接收通信网络信号。
10.一种通信方法,包括:
在定位信号和通信网络信号的接收之间调谐接收器;
把与至少一个通信网络相关联的地理数据存储在存储器中;以及
当接收器接收定位信号时,在耦合于接收器的控制器处处理来自接收器的定位数据,其中,存取存储器,以检索存取该至少一个通信网络的参数。
11.根据权利要求10所述的方法,包括:
在接收器处接收地理数据;以及
通过控制器把地理数据存储在存储器中。
12.根据权利要求10所述的方法,还包括:
通过软件配置控制器,以将其用作处理定位信号的卫星定位设备和处理通信网络信号的通信设备。
13.根据权利要求10所述的方法,包括耦合于接收器的公共天线。
14.根据权利要求10所述的方法,其中,接收器为收发器。
15.根据权利要求10所述的方法,包括:
当所述设备不可到达所述至少一个通信网络时,针对预先确定的时间段设置计时器。
16.根据权利要求10所述的方法,其中,地理数据具有小区站点信息。
17.根据权利要求16所述的方法,其中,地理数据还包括:
与小区站点相关联的多个频率。
18.根据权利要求10所述的设备,其中,调谐还包括:
在第一RF芯片处的接收与定位信号相关联;
在第二RF芯片处的接收与通信网络信号相关联;以及
对基带处理器加以配置,以从第一RF芯片接收定位信号,然后从第二RF芯片接收通信网络信号。
19.一种信号承载媒体,具有用于控制通信设备的机器可读指令,包括:
机器可读指令的第一集合,用于在定位信号和通信网络信号的接收之间调谐接收器;
机器可读指令的第二集合,用于把与至少一个通信网络相关联的地理数据存储在存储器中;以及
机器可读指令的第三集合,用于当接收器接收定位信号时,在耦合于接收器的控制器处,处理从接收器接收的定位信号,其中,存取存储器,以检索存取该至少一个通信网络的参数。
20.根据权利要求17所述的信号承载媒体,包括:
机器可读指令的第四集合,用于在接收器处接收地理数据;以及
机器可读指令的第五集合,用于通过控制器把地理数据存储在存储器中。
21.根据权利要求17所述的信号承载媒体,还包括:
机器可读指令的第四集合,用于通过软件配置控制器,以将其用作处理定位信号的卫星定位设备和处理通信网络信号的通信设备。
22.根据权利要求17所述的信号承载媒体,其中,接收器为由机器可读指令的第一集合调谐的收发器。
23.根据权利要求17所述的信号承载媒体,包括:
机器可读指令的第四集合,用于当所述设备不可到达该至少一个通信网络时,针对预先确定的时间段设置计时器,
24.根据权利要求17所述的信号承载媒体,其中,地理数据具有小区站点信息。
25.根据权利要求22所述的信号承载媒体,其中,地理数据还包括:
与小区站点相关联的多个频率。
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-
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-
2005
- 2005-12-07 WO PCT/US2005/044458 patent/WO2007126401A1/en active Application Filing
- 2005-12-07 EP EP05853388A patent/EP1877821B8/en active Active
- 2005-12-07 CN CN200580033675.5A patent/CN101163983A/zh active Pending
- 2005-12-07 AT AT05853388T patent/ATE474232T1/de not_active IP Right Cessation
- 2005-12-07 JP JP2008513446A patent/JP2008526174A/ja not_active Withdrawn
- 2005-12-07 KR KR1020077016719A patent/KR20070118223A/ko not_active Application Discontinuation
- 2005-12-07 DE DE602005022363T patent/DE602005022363D1/de active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102540230A (zh) * | 2010-12-21 | 2012-07-04 | Lg伊诺特有限公司 | 无线电测定设备和方法及使用无线电测定的移动终端 |
US8682582B2 (en) | 2010-12-21 | 2014-03-25 | Lg Innotek Co., Ltd. | Apparatus and method for radiodetermination and mobile terminal using the same |
CN102540230B (zh) * | 2010-12-21 | 2014-10-22 | Lg伊诺特有限公司 | 无线电测定设备和方法及使用无线电测定的移动终端 |
Also Published As
Publication number | Publication date |
---|---|
EP1877821B1 (en) | 2010-07-14 |
KR20070118223A (ko) | 2007-12-14 |
DE602005022363D1 (de) | 2010-08-26 |
JP2008526174A (ja) | 2008-07-17 |
ATE474232T1 (de) | 2010-07-15 |
EP1877821B8 (en) | 2012-09-26 |
US7949362B2 (en) | 2011-05-24 |
WO2007126401A1 (en) | 2007-11-08 |
EP1877821A1 (en) | 2008-01-16 |
US20050153730A1 (en) | 2005-07-14 |
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