WO2010048110A1 - Mobile receiver with location services capability - Google Patents

Mobile receiver with location services capability Download PDF

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Publication number
WO2010048110A1
WO2010048110A1 PCT/US2009/061225 US2009061225W WO2010048110A1 WO 2010048110 A1 WO2010048110 A1 WO 2010048110A1 US 2009061225 W US2009061225 W US 2009061225W WO 2010048110 A1 WO2010048110 A1 WO 2010048110A1
Authority
WO
WIPO (PCT)
Prior art keywords
acquisition
wireless communication
communication protocol
receiver
information
Prior art date
Application number
PCT/US2009/061225
Other languages
French (fr)
Inventor
Douglas Neal Rowitch
Original Assignee
Qualcomm Incorporated
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Incorporated filed Critical Qualcomm Incorporated
Priority to CN200980139755.7A priority Critical patent/CN102172049B/en
Priority to JP2011533259A priority patent/JP5567025B2/en
Priority to KR1020117011460A priority patent/KR101494942B1/en
Priority to EP09740602.9A priority patent/EP2356829B1/en
Priority to KR1020137016274A priority patent/KR20130088186A/en
Publication of WO2010048110A1 publication Critical patent/WO2010048110A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02Services making use of location information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/06Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02Services making use of location information
    • H04W4/029Location-based management or tracking services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/50Network services
    • H04L67/52Network services specially adapted for the location of the user terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/14Reselecting a network or an air interface
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/24Reselection being triggered by specific parameters
    • H04W36/30Reselection being triggered by specific parameters by measured or perceived connection quality data
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W64/00Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W80/00Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02Data link layer protocols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10Small scale networks; Flat hierarchical networks
    • H04W84/12WLAN [Wireless Local Area Networks]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery

Definitions

  • the subject matter disclosed herein relates to a low-cost receiver for processing signals from a wireless communication link to provide location services.
  • Mobile communication devices such as cell phones, personal digital assistants (PDAs) and/or the like, typically communicate with one or more base stations in a cellular network according to one or more wireless communication protocols.
  • a mobile communication device may also have the capability to communicate with other devices over shorter wireless communication links using different wireless communication protocols such as, for example, protocols used in a wireless LAN (WLAN) (e.g., versions of IEEE Std. 802.11) and/or protocols used in a wireless personal area network (WPAN) (e.g., versions of IEEE Std. 802.15 such as Bluetooth, ultra wideband or ZigBee).
  • WLAN wireless LAN
  • WPAN wireless personal area network
  • Including capabilities for communicating according to multiple communication protocols typically adds cost to manufacture of mobile communication devices.
  • FIG. 1 is a schematic diagram of a communication network adapted to communicate with a mobile station over wireless links according to one aspect.
  • FIG. 2 is a flow diagram of a process to determine a location of a mobile station according to one aspect.
  • FIG. 3 is a schematic diagram of a receiver according to one implementation.
  • FIG. 4 is a schematic diagram of a receiver according to a particular alternative implementation.
  • a receiver adapted to process information transmitted according to a wireless communication protocol where the wireless communication protocol defines an acquisition period for transmission of acquisition information.
  • the receiver is capable of storing acquisition information transmitted during the acquisition period for the purpose of determining a location of the receiver. It should be understood, however, that this is merely one example implementation and that claimed subject matter is not limited to this particular implementation.
  • an example or “one feature” means that a particular feature, structure, or characteristic described in connection with the feature and/or example is included in at least one feature and/or example of claimed subject matter.
  • the appearances of the phrase “in one example”, “an example”, “in one feature” or “a feature” in various places throughout this specification are not necessarily all referring to the same feature and/or example.
  • the particular features, structures, or characteristics may be combined in one or more examples and/or features.
  • a processing unit may be implemented within one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), processors, controllers, micro-controllers, microprocessors, electronic devices, other devices units designed to perform the functions described herein, and/or combinations thereof.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGAs field programmable gate arrays
  • processors controllers, micro-controllers, microprocessors, electronic devices, other devices units designed to perform the functions described herein, and/or combinations thereof.
  • a WWAN may be a Code Division Multiple Access (CDMA) network, a Time Division Multiple Access (TDMA) network, a Frequency Division Multiple Access (FDMA) network, an Orthogonal Frequency Division Multiple Access (OFDMA) network, a Single-Carrier Frequency Division Multiple Access (SC-FDMA) network, and so on.
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-Carrier Frequency Division Multiple Access
  • a CDMA network may implement one or more radio access technologies (RATs) such as cdma2000, Wideband-CDMA (W-CDMA), to name just a few radio technologies.
  • RATs radio access technologies
  • cdma2000 may include technologies implemented according to IS-95, IS-2000, and IS-856 standards.
  • a TDMA network may implement Global System for Mobile Communications (GSM), Digital Advanced Mobile Phone System (D-AMPS), or some other RAT.
  • GSM and W-CDMA are described in documents from a consortium named "3rd Generation Partnership Project” (3GPP).
  • Cdma2000 is described in documents from a consortium named "3rd Generation Partnership Project 2" (3GPP2).
  • 3GPP and 3GPP2 documents are publicly available.
  • a WLAN may comprise an IEEE 802.1 Ix network
  • a WPAN may comprise a Bluetooth, Ultra Wideband (UWB), ZigBee or other network according to IEEE 802.15x, for example.
  • UWB Ultra Wideband
  • ZigBee ZigBee
  • Such location determination techniques described herein may also be used for any combination of WWAN, WLAN and/or WPAN.
  • determining a location of a mobile station may be useful in many applications such as, for example, in emergency applications where location of a mobile station (MS) may be used for transporting emergency resources in a time efficient manner (e.g., in response to a "911" distress call).
  • a MS may determine its location using any one of several techniques such as, for example, processing navigation signals received from a satellite positioning system (SPS) such as the Global Positioning System (GPS), Galileo and Glonass SPS', just to name a few examples, using techniques known to those of ordinary skill in the art.
  • SPS satellite positioning system
  • GPS Global Positioning System
  • Galileo Galileo
  • Glonass SPS' Glonass SPS'
  • MS 107 may comprise any one of several mobile communication devices such as, for example, a mobile telephone, personal digital assistant (PDA), personal navigation device, notebook computer, just to name a few examples.
  • MS 107 may be capable of communicating with devices on network 101 such as a base station almanac server 113 and location server 111 through cellular base station 103 using one or more of the aforementioned cellular communication protocols.
  • MS 107 may communicate with base station almanac server 113 to obtain, for example, acquisition assistance information and/or information regarding the positions of satellites which are "in view" of MS 107.
  • base station almanac server 113 may be replaced with a base station almanac database (not shown) that is located at and/or accessible through location server 111.
  • MS 107 may access such acquisition assistance and/or information regarding satellite positions through accessing location server 111.
  • MS 107 may communicate with location server 111 to, for example, provide information indicating an estimate of the location of MS 107.
  • a MS may obtain information from other sources that can be used in estimating a location of the MS.
  • the location of MS 107 may be estimated based, at least in part, on signals received from terrestrial transmitters such as wireless access point 109 and/or wireless access point 105.
  • wireless access point 109 may transmit and/or receive information according to a wireless communication protocol for use in a WLAN, such as versions of IEEE Std. 802.11.
  • MS 107 may transmit and/or receive information according to a wireless communication protocol for use in a WPAN, such as versions of IEEE Std. 802.15.
  • the location of wireless access point 109 may be known and recorded at, for example, a memory location at MS 107, almanac server 113 and/or location server 111.
  • wireless access point 109 may transmit unique identification information uniquely associated with wireless access point 109 such as, for example, a media access control (MAC) address during an acquisition period.
  • MAC media access control
  • MS 107 is within range to "acquire" signals transmitted from wireless access point 109 during an acquisition period and obtain a MAC address associated with wireless access point 109, it can be determined (e.g., at location server 111 or MS 107) that MS 107 is in proximity (e.g., within acquisition range) of wireless access point 109. Having knowledge of the location of wireless access point 109 may then provide an estimate of the location of MS 107 based, at least in part, on the known location of wireless access point 109. A location of MS 107 may also be estimated based, at least in part, on measurements from two or more access points, such as access point 109 and one other access point (not shown), using location estimation techniques known to those of ordinary skill in the art.
  • MS 107 may be adapted to communicate with cellular base station 103 to, among other things, transmit and/or received voice traffic, data and/or the like in support of a particular voice and/or data service.
  • MS 107 may also be adapted to at least receive information according to one of the aforementioned short range wireless communication protocols (e.g., versions of IEEE Std. 802.11 and/or IEEE Std. 802.15) solely for the purpose of receiving a MAC address transmitted by an access point during acquisition.
  • the aforementioned short range wireless communication protocols e.g., versions of IEEE Std. 802.11 and/or IEEE Std. 802.15
  • MS 107 may "acquire" a signal from wireless access point 109 during an "acquisition period.” During such an acquisition period, for example, a MS 107 may obtain sufficient information from a wireless signal to enable subsequent processing to estimate a location of MS 107.
  • acquisition information obtained during an acquisition period may include, for example, information relating to a carrier frequency, RF phase, a code, a code-phase, timing, Doppler shift and/or measurement of received signal strength, just to name a few examples.
  • acquisition information obtained in an acquisition period may also include information identifying a transmitter and/or device which is transmitting an acquired signal (e.g., a MAC address).
  • a portable wireless device may communicate further with the wireless communication network in a communication "session."
  • a communication session for example, information may be transmitted between a portable wireless device and a wireless communication network according to a predefined format such as frames and/or data packets (e.g., according to the Internet Protocol in some particular implementations).
  • such a portable wireless device may comprise sufficient processing resources such as, for example memory and/or logic, to process information received in the course of a communication session and/or process information for transmission over a wireless data link according to a wireless communication protocol.
  • MS 107 By being configured and/or adapted to operate a receiver and/or transceiver for one of the aforementioned versions of IEEE Std. 802.11 or IEEE Std. 802.15 solely for the purpose of obtaining a MAC address and/or measuring received signal strength during an acquisition period, MS 107 need not provide full functionality for communicating in a session. By allowing MS 107 to be configured for such a reduced functionality (e.g., merely for obtaining a MAC address and/or measuring received signal strength) during an acquisition period), MS 107 may manufactured at a cost that is less than a cost to manufacture a mobile station that provides full capability to communicate in a session according to one of the aforementioned versions of IEEE Std. 802.11 or IEEE Std. 802.15.
  • mobile stations may be manufactured to provide full capability for cellular communication, and sufficient capability of to communicate according to other wireless communication protocols for the purpose of obtaining information enabling estimation of a location of MS 107.
  • mobile stations may be manufactured without the expense and complexity of devices having full capability to communicate according to these other wireless protocols (e.g., with the full capability to establish and/or maintain a communication session in one of these other wireless communication protocols following an acquisition period).
  • a receiver in a MS having a receiver and no transmitter may be adapted to obtain information enabling estimation of a location of the MS.
  • Such an MS may comprise a device that is adapted to receive broadcast signals such as, for example, devices capable of acquiring broadcast signals transmitted in a format such as Digital TV, Digital Radio, DVB-H, DMB, ISDB-T and/or MediaFLO, just to name a few examples.
  • a MS may obtain such information from an acquisition process.
  • the MS need not have sufficient processing resources (e.g., logic, memory, software, etc.) to process content in subsequently received broadcast signal carrying content (e.g., decode, decompress and/or render for presentation), for example.
  • FIG. 2 is a flow diagram illustrating a process 200 for determining a location of a MS based, at least in part, on acquisition information obtained from a transmitter during an acquisition period, according to one particular implementation.
  • a MS may receive and detect wireless signals transmitted from a transmitter which is in proximity to the MS (e.g., a device in a WLAN or WPAN capable of communicating according to a wireless communication protocol such as versions of IEEE Std. 802.11 or IEEE Std. 802.15).
  • the MS may acquire sufficient information from the detected signal to successfully acquire the detected signal, enabling subsequent communication session according to a wireless communication protocol.
  • Block 263 may determine the identification information associated with the transmitter (e.g., the MAC address, or the base station ID) from received wireless signals.
  • identification may be obtained from acquisition information, which may be obtained during an acquisition process.
  • Block 265 may retrieve location information associated with the transmitter (e.g., almanac of location information associated with devices in a WLAN and/or WPAN) using the identification information.
  • the mobile station may transmit identification information associated with the transmitter to a location server, which retrieves the location information associated with the transmitter using the identification information (e.g., from a database, or from another server, such as an almanac server).
  • FIG. 3 is a schematic diagram of a receiver that is capable of communicating through wireless communication links according to more than one wireless communication protocol.
  • receiver 310 comprises a combined GPS receiver and a communication transceiver 305.
  • communication transceiver 305 may be implemented as multiple receivers and transmitters for communication on wireless data links according to associated multiple wireless communication protocols.
  • communication transceiver 305 may include a transceiver portion for receiving cellular telephone signals from and/or transmitting cellular telephone signals to base station 352 according to one or more of the aforementioned cellular communication protocols while another transceiver portion is adapted for receiving information from and/or transmitting information to WLAN access point 362 according to one or more versions of IEEE Std. 802.11, for example.
  • communication transceiver 305 may comprise a transceiver portion adapted for receiving information and/or transmitting information to a device in a WPAN in a communication link according to one or more versions of IEEE Std. 802.15.
  • Acquisition and tracking circuit 321 is coupled to GPS antenna 301, and communication transceiver 305 is coupled to communication antenna 311.
  • GPS signals (e.g., signal 370 transmitted from satellite 303) may be received through GPS antenna 301 and provided to acquisition and tracking circuit 321, which may then acquire PN (Pseudorandom Noise) codes for various satellites.
  • Data produced by circuit 321 (e.g., correlation indicators) may be processed by processor 333 for transmission (e.g. of pseudorange measurements) by transceiver 305.
  • receiver 310 also contains a GPS receiver stage including acquisition and tracking circuit 321 to receive and process navigation signals 370 from satellite 303, as discussed above receiver 310 may be incapable of acquiring navigation signals 370 in certain environments.
  • Communication transceiver 305 comprises a transmit/receive switch 331 which routes communication signals (typically RF) to and from communication antenna 311 and transceiver 305.
  • communication signals typically RF
  • a band splitting filter, or "duplexer” is used instead of the T/R switch.
  • Received communication signals may be first processed at communication receiver 332, and then passed to processor 333 for further processing.
  • Communication signals to be transmitted from processor 333 may be propagated to modulator 334 and frequency converter 335.
  • Power amplifier 336 may increase the gain of the signal to an appropriate level for transmission to base station 352 (or to WLAN access point 362).
  • transmit circuitry (such as power amplifier 336, IF/RF converter and/or modulator 334) may be completely omitted to provide a low-cost, low-power and/or light-weight device that is capable of obtaining acquisition information in an acquisition process associated with a communication protocol for the purpose of obtaining an estimate of a location of the device.
  • receiver 310 may include (or be coupled to) a data processing system (e.g., a personal data assistant, or a portable computer).
  • a data processing system may include a bus (not shown) which is coupled to a microprocessor and a memory (e.g., ROM, volatile RAM, non- volatile memory).
  • the bus may interconnect various components together such as, for example, a display controller, display device and/or peripheral devices such as input/output (I/O) devices, which are well known in the art.
  • the MS may store locations and identifications (e.g., MAC address) of devices in a WLAN and/or WPAN for extracting and enhancing the location information associated with such devices using the memory and software program instructions stored in the memory.
  • locations and identifications e.g., MAC address
  • such a MS may only stores locations of the mobile station and identification of devices in a WLAN and/or WPAN for transmission to a server (e.g., through a communication port, or a wireless communication link) if a communication connection is established.
  • communication transceiver 305 may communicate on wireless communication links 350 and 360 according to different wireless communication protocols. Implementing such capabilities in a MS may increase cost, weight, power consumption and/or form factor over implementing such capability for communication according to a single wireless communication protocol, for example. In one particular implementation, although claimed subject matter is not limited in this respect, communication transceiver 305 may have reduced capabilities to communicate in at least one wireless communication protocol, which may permit a reduction in cost, weight, power consumption and/or form factor associated with implementation in a MS.
  • communication transceiver 305 may comprise sufficient resources for obtaining acquisition information during an acquisition period for a signal transmitted according to a communication protocol (e.g., for the purpose of estimating the location of the MS), but may not comprise sufficient resources for establishing and/or maintaining a communication session according to the communication protocol following successful acquisition.
  • a communication protocol e.g., for the purpose of estimating the location of the MS
  • FIG 4. is a schematic diagram of a communication transceiver according to a particular implementation of communication transceiver 305 shown in FIG. 3.
  • communication transceiver 305 may have reduced capabilities to communicate in at least one wireless communication protocol.
  • communication transceiver 305 may comprise sufficient resources to obtain acquisition information provided in a signal received during an acquisition period according to a particular communication protocol (e.g., for the purpose of estimating the location of the MS), but may not include sufficient resources to establish and/or maintain a communication session in the particular communication protocol following successful acquisition.
  • acquisition information obtained during an acquisition period may include, however, information uniquely identifying a transmitter that transmitted the acquired signal, which may then be used in estimating a location of a MS as illustrated above.
  • communication receiver 332 may include a first receiver 372 adapted to process signals transmitted according to a first wireless communication protocol (e.g., according to one or more of the aforementioned cellular communication protocols) while receiver 374 my be adapted to process signals transmitted according to a second wireless communication protocol (e.g., according one or more versions of IEEE Std. 802.11 or IEEE Std. 802.15 and/or the like).
  • receivers 372 and 374 may include, for example, filters, RF/IF demodulators/downconverters, A/D converters, decoders and/or the like adapted to process a signal received according to a particular communication protocol for providing digital information.
  • receivers 372 and 374 may store such digital information in an associated memory 376 or 378, which is accessible by processor 333, for example.
  • Processor 333 may then retrieve the stored digital information further in support of one or more applications such as, for example, voice telephony, text messaging, location/position determination, applications implemented on a TCP/IP protocol and/or the like.
  • one or more applications may supported by and/or used in connection with a communication session that is established between communication transceiver 305 and a wireless communication network.
  • memories 376 and 378 may comprise any one of several mediums capable of storing information digitally such as, for example, random access memory (RAM).
  • memory 376 may be sufficiently large to enable establishing and/or maintaining a communication session following successful acquisition of a signal transmitted according to a first communication protocol (e.g., one of the aforementioned cellular communication protocols).
  • Memory 378 may be sufficiently large enough to store acquisition information (e.g., MAC address) obtained during a process to acquire a signal transmitted according to a second communication protocol (e.g., versions of IEEE Std. 802.11 or IEEE Std. 802.15, etc.).
  • a transmitter function of a MS may be completely removed to enable removal of components (e.g., transmit modulator, amplifier, filters and duplexers). Again, this may enable manufacture of a MS at a lower cost, weight, power consumption and/or form factor as pointed out above.
  • Processor 333 may comprise logic and/or processing circuitry adapted to process digital information retrieved from memories 376 and 378 according to encoded and/or software instructions.
  • processor 333 may include a microprocessor and/or microcontroller that is adapted to execute instructions stored in a memory (not shown). Such instructions may comprise, for example, procedures and/or modules adapted to enable and/or support one or more of the aforementioned applications.
  • processor 333 may execute instructions to support and/or enable establishing and/or maintaining a communication session according to a first wireless communication protocol (e.g., associated with receiver 372).
  • a first wireless communication protocol e.g., associated with receiver 372.
  • processor 333 may include sufficient procedures and/or modules to process acquisition information obtained during a process to acquire a signal transmitted according to a second communication protocol (e.g., associated with receiver 374). In one particular implementation, however, processor 333 may not include sufficient procedures and/or modules to support and/or enable establishing and/or maintaining a communication session according to the second wireless communication protocol. Here, this may enable a reduction in memory required for storing instructions which are executable by processor 333 and/or a simplification of procedures and/or modules to be executed by processor 333 in support of MS functions.
  • a second communication protocol e.g., associated with receiver 374.
  • signals transmitted according to different wireless transmission protocols may be transmitted at different radio frequencies and/or modulated according to different, protocol-specific modulation schemes.
  • modulator 334 may be adapted to modulate an intermediate frequency (IF) signal according to a specific wireless communication protocol as determined by processor 333, for example.
  • IF/RF converter 335 may be adapted to convert an IF signal to an RF signal according to the specific wireless communication protocol as determined by processor 333.
  • obtaining acquisition information in a process to acquire a signal transmitted according to a communication protocol may not require transmission of information back to the source of the transmitted signal.
  • I/F converter 335 and/or modulator 334 may be simplified to be able to transmit information according to a first communication protocol (e.g., to support a communication session following successful acquisition of a signal transmitted according to the first communication protocol) but without the additional capability to transmit information according to a second communication protocol.

Abstract

The subject matter disclosed herein relates to a receiver that is capable of processing signals which are transmitted according to one or more wireless communication protocols. Such a receiver may have sufficient resources to obtain acquisition information from a signal transmitted according to at least one of the wireless communication protocols during an acquisition period and for the purpose of obtaining an estimate of a location of the receiver.

Description

MOBILE RECEIVER WITH LOCATION SERVICES CAPABILITY
BACKGROUND
Field:
[0001] The subject matter disclosed herein relates to a low-cost receiver for processing signals from a wireless communication link to provide location services.
Information:
[0002] Mobile communication devices, such as cell phones, personal digital assistants (PDAs) and/or the like, typically communicate with one or more base stations in a cellular network according to one or more wireless communication protocols. In some implementations, such a mobile communication device may also have the capability to communicate with other devices over shorter wireless communication links using different wireless communication protocols such as, for example, protocols used in a wireless LAN (WLAN) (e.g., versions of IEEE Std. 802.11) and/or protocols used in a wireless personal area network (WPAN) (e.g., versions of IEEE Std. 802.15 such as Bluetooth, ultra wideband or ZigBee). Including capabilities for communicating according to multiple communication protocols typically adds cost to manufacture of mobile communication devices.
BRIEF DESCRIPTION OF THE FIGURES
[0009] Non-limiting and non-exhaustive features will be described with reference to the following figures, wherein like reference numerals refer to like parts throughout the various figures
[0010] FIG. 1 is a schematic diagram of a communication network adapted to communicate with a mobile station over wireless links according to one aspect. [0011] FIG. 2 is a flow diagram of a process to determine a location of a mobile station according to one aspect.
[0012] FIG. 3 is a schematic diagram of a receiver according to one implementation.
[0013] FIG. 4 is a schematic diagram of a receiver according to a particular alternative implementation.
SUMMARY
[0014] In one particular example, although claimed subject matter is not limited in this respect, a receiver adapted to process information transmitted according to a wireless communication protocol where the wireless communication protocol defines an acquisition period for transmission of acquisition information. In one particular implementation, the receiver is capable of storing acquisition information transmitted during the acquisition period for the purpose of determining a location of the receiver. It should be understood, however, that this is merely one example implementation and that claimed subject matter is not limited to this particular implementation.
DETAILED DESCRIPTION
[0015] Reference throughout this specification to "one example", "one feature",
"an example" or "one feature" means that a particular feature, structure, or characteristic described in connection with the feature and/or example is included in at least one feature and/or example of claimed subject matter. Thus, the appearances of the phrase "in one example", "an example", "in one feature" or "a feature" in various places throughout this specification are not necessarily all referring to the same feature and/or example. Furthermore, the particular features, structures, or characteristics may be combined in one or more examples and/or features.
[0016] Methodologies described herein may be implemented by various means depending upon applications according to particular features and/or examples. For example, such methodologies may be implemented in hardware, firmware, software, and/or combinations thereof. In a hardware implementation, for example, a processing unit may be implemented within one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), processors, controllers, micro-controllers, microprocessors, electronic devices, other devices units designed to perform the functions described herein, and/or combinations thereof.
[0017] Location determination and/or estimation techniques described herein may be used for various wireless communication networks such as a wireless wide area network (WWAN), a wireless local area network (WLAN), a wireless personal area network (WPAN), and so on. The term "network" and "system" may be used interchangeably herein. A WWAN may be a Code Division Multiple Access (CDMA) network, a Time Division Multiple Access (TDMA) network, a Frequency Division Multiple Access (FDMA) network, an Orthogonal Frequency Division Multiple Access (OFDMA) network, a Single-Carrier Frequency Division Multiple Access (SC-FDMA) network, and so on. A CDMA network may implement one or more radio access technologies (RATs) such as cdma2000, Wideband-CDMA (W-CDMA), to name just a few radio technologies. Here, cdma2000 may include technologies implemented according to IS-95, IS-2000, and IS-856 standards. A TDMA network may implement Global System for Mobile Communications (GSM), Digital Advanced Mobile Phone System (D-AMPS), or some other RAT. GSM and W-CDMA are described in documents from a consortium named "3rd Generation Partnership Project" (3GPP). Cdma2000 is described in documents from a consortium named "3rd Generation Partnership Project 2" (3GPP2). 3GPP and 3GPP2 documents are publicly available. A WLAN may comprise an IEEE 802.1 Ix network, and a WPAN may comprise a Bluetooth, Ultra Wideband (UWB), ZigBee or other network according to IEEE 802.15x, for example. Such location determination techniques described herein may also be used for any combination of WWAN, WLAN and/or WPAN. [0018] In one aspect, determining a location of a mobile station may be useful in many applications such as, for example, in emergency applications where location of a mobile station (MS) may be used for transporting emergency resources in a time efficient manner (e.g., in response to a "911" distress call). Here, for example, a MS may determine its location using any one of several techniques such as, for example, processing navigation signals received from a satellite positioning system (SPS) such as the Global Positioning System (GPS), Galileo and Glonass SPS', just to name a few examples, using techniques known to those of ordinary skill in the art. In FIG. 1, for example, MS 107 may process navigation signals received from a satellite 121 to, among other things, determine a pseudorange measurement to satellite 121. Here, with determination of pseudorange measurements to four or more such satellites, and with an accurate estimate of orbital positions of such satellites when such pseudorange measurements are determined, a location of MS 107 may be estimated. MS 107 may comprise any one of several mobile communication devices such as, for example, a mobile telephone, personal digital assistant (PDA), personal navigation device, notebook computer, just to name a few examples. [0019] In one implementation, MS 107 may be capable of communicating with devices on network 101 such as a base station almanac server 113 and location server 111 through cellular base station 103 using one or more of the aforementioned cellular communication protocols. Here, for example, MS 107 may communicate with base station almanac server 113 to obtain, for example, acquisition assistance information and/or information regarding the positions of satellites which are "in view" of MS 107. In an alternative implementation, base station almanac server 113 may be replaced with a base station almanac database (not shown) that is located at and/or accessible through location server 111. As such, MS 107 may access such acquisition assistance and/or information regarding satellite positions through accessing location server 111. Also, MS 107 may communicate with location server 111 to, for example, provide information indicating an estimate of the location of MS 107.
[0020] In some environments, processing of navigation signals from satellites for determining pseudorange measurements may be difficult or impossible. Such environments may include, for example, high multi-path urban environments and/or indoor environments. In one particular implementation, a MS may obtain information from other sources that can be used in estimating a location of the MS. For example, the location of MS 107 may be estimated based, at least in part, on signals received from terrestrial transmitters such as wireless access point 109 and/or wireless access point 105.
[0021] In one implementation, wireless access point 109 may transmit and/or receive information according to a wireless communication protocol for use in a WLAN, such as versions of IEEE Std. 802.11. In alternative implementations, MS 107 may transmit and/or receive information according to a wireless communication protocol for use in a WPAN, such as versions of IEEE Std. 802.15. Also, the location of wireless access point 109 may be known and recorded at, for example, a memory location at MS 107, almanac server 113 and/or location server 111. In one particular implementation, wireless access point 109 may transmit unique identification information uniquely associated with wireless access point 109 such as, for example, a media access control (MAC) address during an acquisition period. Here, if MS 107 is within range to "acquire" signals transmitted from wireless access point 109 during an acquisition period and obtain a MAC address associated with wireless access point 109, it can be determined (e.g., at location server 111 or MS 107) that MS 107 is in proximity (e.g., within acquisition range) of wireless access point 109. Having knowledge of the location of wireless access point 109 may then provide an estimate of the location of MS 107 based, at least in part, on the known location of wireless access point 109. A location of MS 107 may also be estimated based, at least in part, on measurements from two or more access points, such as access point 109 and one other access point (not shown), using location estimation techniques known to those of ordinary skill in the art.
[0022] As pointed out above, MS 107 may be adapted to communicate with cellular base station 103 to, among other things, transmit and/or received voice traffic, data and/or the like in support of a particular voice and/or data service. In certain implementations, MS 107 may also be adapted to at least receive information according to one of the aforementioned short range wireless communication protocols (e.g., versions of IEEE Std. 802.11 and/or IEEE Std. 802.15) solely for the purpose of receiving a MAC address transmitted by an access point during acquisition. In one implementation, MS 107 may "acquire" a signal from wireless access point 109 during an "acquisition period." During such an acquisition period, for example, a MS 107 may obtain sufficient information from a wireless signal to enable subsequent processing to estimate a location of MS 107. Such "acquisition information" obtained during an acquisition period may include, for example, information relating to a carrier frequency, RF phase, a code, a code-phase, timing, Doppler shift and/or measurement of received signal strength, just to name a few examples. In particular implementations, although claimed subject matter is not limited in this respect, such acquisition information obtained in an acquisition period may also include information identifying a transmitter and/or device which is transmitting an acquired signal (e.g., a MAC address).
[0023] In some implementations of a wireless communication protocol such as the aforementioned versions of IEEE Std. 802.11 or IEEE Std. 802.15, upon successfully completing acquisition of a wireless signal, a portable wireless device may communicate further with the wireless communication network in a communication "session." During such a communication session, for example, information may be transmitted between a portable wireless device and a wireless communication network according to a predefined format such as frames and/or data packets (e.g., according to the Internet Protocol in some particular implementations). To establish and/or maintain such communication session, such a portable wireless device may comprise sufficient processing resources such as, for example memory and/or logic, to process information received in the course of a communication session and/or process information for transmission over a wireless data link according to a wireless communication protocol.
[0024] By being configured and/or adapted to operate a receiver and/or transceiver for one of the aforementioned versions of IEEE Std. 802.11 or IEEE Std. 802.15 solely for the purpose of obtaining a MAC address and/or measuring received signal strength during an acquisition period, MS 107 need not provide full functionality for communicating in a session. By allowing MS 107 to be configured for such a reduced functionality (e.g., merely for obtaining a MAC address and/or measuring received signal strength) during an acquisition period), MS 107 may manufactured at a cost that is less than a cost to manufacture a mobile station that provides full capability to communicate in a session according to one of the aforementioned versions of IEEE Std. 802.11 or IEEE Std. 802.15. Accordingly, mobile stations may be manufactured to provide full capability for cellular communication, and sufficient capability of to communicate according to other wireless communication protocols for the purpose of obtaining information enabling estimation of a location of MS 107. However, such mobile stations may be manufactured without the expense and complexity of devices having full capability to communicate according to these other wireless protocols (e.g., with the full capability to establish and/or maintain a communication session in one of these other wireless communication protocols following an acquisition period). [0025] Similarly, a receiver in a MS having a receiver and no transmitter may be adapted to obtain information enabling estimation of a location of the MS. Such an MS may comprise a device that is adapted to receive broadcast signals such as, for example, devices capable of acquiring broadcast signals transmitted in a format such as Digital TV, Digital Radio, DVB-H, DMB, ISDB-T and/or MediaFLO, just to name a few examples. As described above, such a MS may obtain such information from an acquisition process. However, the MS need not have sufficient processing resources (e.g., logic, memory, software, etc.) to process content in subsequently received broadcast signal carrying content (e.g., decode, decompress and/or render for presentation), for example. By not needing to process content in such a broadcast signal, such an MS may have reduced resources such as reduced memory resources, processor resources and/or decoders while still maintaining sufficient resources (e.g., hardware and software) to obtain a location estimate based upon stored acquisition information. [0026] FIG. 2 is a flow diagram illustrating a process 200 for determining a location of a MS based, at least in part, on acquisition information obtained from a transmitter during an acquisition period, according to one particular implementation. At block 261, a MS may receive and detect wireless signals transmitted from a transmitter which is in proximity to the MS (e.g., a device in a WLAN or WPAN capable of communicating according to a wireless communication protocol such as versions of IEEE Std. 802.11 or IEEE Std. 802.15). Here, the MS may acquire sufficient information from the detected signal to successfully acquire the detected signal, enabling subsequent communication session according to a wireless communication protocol.
[0027] Block 263 may determine the identification information associated with the transmitter (e.g., the MAC address, or the base station ID) from received wireless signals. Here, for example, such identification may be obtained from acquisition information, which may be obtained during an acquisition process. Block 265 may retrieve location information associated with the transmitter (e.g., almanac of location information associated with devices in a WLAN and/or WPAN) using the identification information. For example, the mobile station may transmit identification information associated with the transmitter to a location server, which retrieves the location information associated with the transmitter using the identification information (e.g., from a database, or from another server, such as an almanac server). In another example, the MS may maintain location information associated with the transmitter in memory; thus, the location information may be retrieved from the memory of the MS. Block 267 may then estimate the location of the MS based, at least in part, on the retrieved location information associated with the transmitter. [0028] FIG. 3 is a schematic diagram of a receiver that is capable of communicating through wireless communication links according to more than one wireless communication protocol. In the particular illustrated example, receiver 310 comprises a combined GPS receiver and a communication transceiver 305. Here, communication transceiver 305 may be implemented as multiple receivers and transmitters for communication on wireless data links according to associated multiple wireless communication protocols. In the particularly illustrated example, communication transceiver 305 may include a transceiver portion for receiving cellular telephone signals from and/or transmitting cellular telephone signals to base station 352 according to one or more of the aforementioned cellular communication protocols while another transceiver portion is adapted for receiving information from and/or transmitting information to WLAN access point 362 according to one or more versions of IEEE Std. 802.11, for example. In alternative implementations, communication transceiver 305 may comprise a transceiver portion adapted for receiving information and/or transmitting information to a device in a WPAN in a communication link according to one or more versions of IEEE Std. 802.15. Acquisition and tracking circuit 321 is coupled to GPS antenna 301, and communication transceiver 305 is coupled to communication antenna 311. GPS signals (e.g., signal 370 transmitted from satellite 303) may be received through GPS antenna 301 and provided to acquisition and tracking circuit 321, which may then acquire PN (Pseudorandom Noise) codes for various satellites. Data produced by circuit 321 (e.g., correlation indicators) may be processed by processor 333 for transmission (e.g. of pseudorange measurements) by transceiver 305. While receiver 310 also contains a GPS receiver stage including acquisition and tracking circuit 321 to receive and process navigation signals 370 from satellite 303, as discussed above receiver 310 may be incapable of acquiring navigation signals 370 in certain environments.
[0029] Communication transceiver 305 comprises a transmit/receive switch 331 which routes communication signals (typically RF) to and from communication antenna 311 and transceiver 305. In some systems, a band splitting filter, or "duplexer," is used instead of the T/R switch. Received communication signals may be first processed at communication receiver 332, and then passed to processor 333 for further processing. Communication signals to be transmitted from processor 333 may be propagated to modulator 334 and frequency converter 335. Power amplifier 336 may increase the gain of the signal to an appropriate level for transmission to base station 352 (or to WLAN access point 362). In alternative embodiments (not shown), transmit circuitry (such as power amplifier 336, IF/RF converter and/or modulator 334) may be completely omitted to provide a low-cost, low-power and/or light-weight device that is capable of obtaining acquisition information in an acquisition process associated with a communication protocol for the purpose of obtaining an estimate of a location of the device.
[0030] In one particular implementation, receiver 310 may include (or be coupled to) a data processing system (e.g., a personal data assistant, or a portable computer). Here, such a data processing system may include a bus (not shown) which is coupled to a microprocessor and a memory (e.g., ROM, volatile RAM, non- volatile memory). The bus may interconnect various components together such as, for example, a display controller, display device and/or peripheral devices such as input/output (I/O) devices, which are well known in the art. In one implementation where receiver 310 is included as part of a MS, the MS may store locations and identifications (e.g., MAC address) of devices in a WLAN and/or WPAN for extracting and enhancing the location information associated with such devices using the memory and software program instructions stored in the memory. In one particular implementation, such a MS may only stores locations of the mobile station and identification of devices in a WLAN and/or WPAN for transmission to a server (e.g., through a communication port, or a wireless communication link) if a communication connection is established.
[0031] As illustrated above according to a particular example, communication transceiver 305 may communicate on wireless communication links 350 and 360 according to different wireless communication protocols. Implementing such capabilities in a MS may increase cost, weight, power consumption and/or form factor over implementing such capability for communication according to a single wireless communication protocol, for example. In one particular implementation, although claimed subject matter is not limited in this respect, communication transceiver 305 may have reduced capabilities to communicate in at least one wireless communication protocol, which may permit a reduction in cost, weight, power consumption and/or form factor associated with implementation in a MS. For example, communication transceiver 305 may comprise sufficient resources for obtaining acquisition information during an acquisition period for a signal transmitted according to a communication protocol (e.g., for the purpose of estimating the location of the MS), but may not comprise sufficient resources for establishing and/or maintaining a communication session according to the communication protocol following successful acquisition.
[0032] FIG 4. is a schematic diagram of a communication transceiver according to a particular implementation of communication transceiver 305 shown in FIG. 3. In this particular implementation, communication transceiver 305 may have reduced capabilities to communicate in at least one wireless communication protocol. Here, for example, communication transceiver 305 may comprise sufficient resources to obtain acquisition information provided in a signal received during an acquisition period according to a particular communication protocol (e.g., for the purpose of estimating the location of the MS), but may not include sufficient resources to establish and/or maintain a communication session in the particular communication protocol following successful acquisition. Such acquisition information obtained during an acquisition period may include, however, information uniquely identifying a transmitter that transmitted the acquired signal, which may then be used in estimating a location of a MS as illustrated above.
[0033] In this particular example, communication receiver 332 may include a first receiver 372 adapted to process signals transmitted according to a first wireless communication protocol (e.g., according to one or more of the aforementioned cellular communication protocols) while receiver 374 my be adapted to process signals transmitted according to a second wireless communication protocol (e.g., according one or more versions of IEEE Std. 802.11 or IEEE Std. 802.15 and/or the like). Here, receivers 372 and 374 may include, for example, filters, RF/IF demodulators/downconverters, A/D converters, decoders and/or the like adapted to process a signal received according to a particular communication protocol for providing digital information. Upon processing a received signal to provide such digital information, receivers 372 and 374 may store such digital information in an associated memory 376 or 378, which is accessible by processor 333, for example. Processor 333 may then retrieve the stored digital information further in support of one or more applications such as, for example, voice telephony, text messaging, location/position determination, applications implemented on a TCP/IP protocol and/or the like. As pointed out above, one or more applications may supported by and/or used in connection with a communication session that is established between communication transceiver 305 and a wireless communication network.
[0034] In particular implementations, memories 376 and 378 may comprise any one of several mediums capable of storing information digitally such as, for example, random access memory (RAM). Here, memory 376 may be sufficiently large to enable establishing and/or maintaining a communication session following successful acquisition of a signal transmitted according to a first communication protocol (e.g., one of the aforementioned cellular communication protocols). Memory 378 may be sufficiently large enough to store acquisition information (e.g., MAC address) obtained during a process to acquire a signal transmitted according to a second communication protocol (e.g., versions of IEEE Std. 802.11 or IEEE Std. 802.15, etc.). However, the size of memory 378 may be insufficient to establish and/or maintain a communication session following successful acquisition of the signal transmitted according to the second communication protocol. In yet another implementation, a transmitter function of a MS may be completely removed to enable removal of components (e.g., transmit modulator, amplifier, filters and duplexers). Again, this may enable manufacture of a MS at a lower cost, weight, power consumption and/or form factor as pointed out above.
[0035] Processor 333 may comprise logic and/or processing circuitry adapted to process digital information retrieved from memories 376 and 378 according to encoded and/or software instructions. For example, processor 333 may include a microprocessor and/or microcontroller that is adapted to execute instructions stored in a memory (not shown). Such instructions may comprise, for example, procedures and/or modules adapted to enable and/or support one or more of the aforementioned applications. Here, for example, processor 333 may execute instructions to support and/or enable establishing and/or maintaining a communication session according to a first wireless communication protocol (e.g., associated with receiver 372). Also, processor 333 may include sufficient procedures and/or modules to process acquisition information obtained during a process to acquire a signal transmitted according to a second communication protocol (e.g., associated with receiver 374). In one particular implementation, however, processor 333 may not include sufficient procedures and/or modules to support and/or enable establishing and/or maintaining a communication session according to the second wireless communication protocol. Here, this may enable a reduction in memory required for storing instructions which are executable by processor 333 and/or a simplification of procedures and/or modules to be executed by processor 333 in support of MS functions.
[0036] In certain implementations, signals transmitted according to different wireless transmission protocols may be transmitted at different radio frequencies and/or modulated according to different, protocol-specific modulation schemes. As such, modulator 334 may be adapted to modulate an intermediate frequency (IF) signal according to a specific wireless communication protocol as determined by processor 333, for example. Likewise, IF/RF converter 335 may be adapted to convert an IF signal to an RF signal according to the specific wireless communication protocol as determined by processor 333. In one example implementation, obtaining acquisition information in a process to acquire a signal transmitted according to a communication protocol may not require transmission of information back to the source of the transmitted signal. As such, I/F converter 335 and/or modulator 334 may be simplified to be able to transmit information according to a first communication protocol (e.g., to support a communication session following successful acquisition of a signal transmitted according to the first communication protocol) but without the additional capability to transmit information according to a second communication protocol. [0037] While there has been illustrated and described what are presently considered to be example features, it will be understood by those skilled in the art that various other modifications may be made, and equivalents may be substituted, without departing from claimed subject matter. Additionally, many modifications may be made to adapt a particular situation to the teachings of claimed subject matter without departing from the central concept described herein. Therefore, it is intended that claimed subject matter not be limited to the particular examples disclosed, but that such claimed subject matter may also include all aspects falling within the scope of appended claims, and equivalents thereof.

Claims

CLAIMSWhat is claimed is:
1. An apparatus comprising: a receiver adapted to process information transmitted according to a wireless communication protocol, said wireless communication protocol defining an acquisition period for transmission of acquisition information and a communication session to facilitate communication following a successful acquisition, wherein said receiver is capable of storing acquisition information transmitted during said acquisition period and does not comprise sufficient resources to establish and/or maintain said communication session following said successful acquisition.
2. The apparatus of claim 1, wherein said apparatus further comprises a processor adapted to: initiate said receiver to acquire said acquisition information during said acquisition period in response to an emergency event; and initiate transmission of said stored acquisition information to a location server.
3. The apparatus of claim 1, and further comprising memory accessible by said receiver to store said acquisition information, wherein said memory accessible by said receiver is insufficient to enable said receiver to establish and/or maintain said communication session.
4. The apparatus of claim 1, and further comprising at least one transceiver adapted to transmit and receive information according to a second wireless communicate protocol different from said first communication protocol.
5. The apparatus of claim 4, wherein said at least one transceiver is adapted to transmit and receive information in a communication session defined by said second wireless communication protocol.
6. The apparatus of claim 1 , wherein said acquisition information comprises unique identification information associated with a device.
7. The apparatus of claim 6, wherein said unique identification information comprises a media access control (MAC) address associated with said device.
8. The apparatus of claim 1 , wherein said acquisition information comprises a measurement of received signal strength.
9. The apparatus of claim 1, wherein said wireless communication protocol comprises a wireless communication protocol according to a version of IEEE Std. 802.11 and/or IEEE Std. 802.15.
10. The apparatus of claim 1, wherein said receiver is capable of being manufactured at a cost lower than a cost to manufacture a receiver having sufficient resources to establish and/or maintain a communication session following a successful acquisition
11. The apparatus of claim 1 , wherein apparatus further comprises a processor adapted to obtain an estimate of location of said receiver based, at least in part, on said stored acquisition information.
12. The apparatus of claim 1, wherein said apparatus does not include a transmitter adapted to transmit information according to said communication protocol.
13. A mobile station comprising : a receiver adapted to process signal transmitted according to at least a first wireless communication protocol and a second wireless communication protocol, each of said first and second wireless communication protocols defining an associated acquisition period for transmission of acquisition information and an associated communication session to facilitate communication following a successful acquisition; a transmitter adapted to transmit signals transmitted according to at least said first wireless communication protocol; and a processor adapted to enable one or more applications using a communication session according to said first wireless communication protocol, wherein said mobile station is capable of storing acquisition information received during said acquisition period defined by said second wireless communication protocol and does not have sufficient resources to establish and/or maintain said communication session defined by said second wireless communication protocol.
14. The mobile station of claim 13, wherein said mobile station defines a memory accessible by said processor, wherein a portion of said memory allocated to processing information received according to said second wireless communication protocol is sufficient to store acquisition information received during an acquisition period of said second wireless communication protocol, and is not sufficient to establish and/or maintain a communication session according to said second wireless communication protocol.
15. The mobile station of claim 13, wherein said processor is adapted to execute encoded instructions stored in a memory to enable said one or more applications using a communication session according to said first wireless communication protocol, and wherein said mobile station does not include encoded instructions for establishing and/or maintaining a communication session according to said second wireless communication protocol.
16. The mobile station of claim 13, wherein said acquisition information received during said acquisition period comprises unique identification information associated with a device.
17. The mobile station of claim 16, wherein said unique identification information comprises a media access control (MAC) address associated with said device.
18. The mobile station of claim 13, wherein said acquisition information comprises a measurement of received signal strength.
19. The mobile station of claim 13, wherein said second wireless communication protocol comprises a wireless communication protocol according to a version of IEEE Std. 802.11 and/or IEEE Std. 802.15.
20. The mobile station of claim 13, wherein said mobile station is capable of being manufactured at a cost which is less than a cost to manufacture a mobile station having sufficient resources to establish and/or maintain said communication session defined by said second wireless communication protocol.
21. The mobile station of claim 13 , wherein said processor is further adapted to obtain an estimate of a location of said mobile station based, at least in part, on said stored acquisition information.
22. A processor comprising: a memory having stored thereon encoded instructions to process information transmitted according to a first wireless communication protocol and a second wireless communication protocol, each of said first and second wireless communication protocols defining an associated acquisition period for transmission of acquisition information and an associated communication session to facilitate communication following a successful acquisition, said instructions comprising: instructions to enable one or more applications using a communication session according to said first wireless communication protocol; and instructions to store acquisition information received during said acquisition period defined by said second wireless communication protocol; and circuitry coupled to said memory and adapted to retrieve and execute said instructions, wherein said memory does not include instructions encoded instructions for establishing and/or maintaining a communication session according to said second wireless communication protocol.
23. The processor of claim 22, wherein said acquisition information received during said acquisition period comprises unique identification information associated with a device.
24. The processor of claim 23, wherein said unique identification information comprises a media access control (MAC) address associated with said device.
25. The processor of claim 22, wherein said acquisition information comprises a measurement of received signal strength.
26. The processor of claim 22, wherein said second wireless communication protocol is selected from the group wireless communication protocols comprising essentially of versions of IEEE Std. 802.11 and IEEE Std. 802.15.
27. The processor of claim 22, wherein said instructions further comprise instructions to obtain an estimate of a location of said processor based, at least in part on said stored acquisition information.
28. An apparatus comprising: a receiver adapted to process information transmitted according to a wireless communication protocol, said wireless communication protocol defining an acquisition period for transmission of acquisition information to enable reception of a broadcast signal following a successful acquisition, wherein said receiver is capable of storing acquisition information transmitted during said acquisition period and does not comprise sufficient resources to process broadcast content in broadcast signal following said successful acquisition.
29. The apparatus of claim 28, wherein said receiver is further adapted to obtain an estimate of a location of said receiver based, at least in part, on said stored acquisition information.
30. The apparatus of claim 28, wherein said receiver is adapted to receive said broadcast signal transmitted according to a Digital TV, Digital Radio, DVB-H, DMB, ISDB-T and/or MediaFLO format following said successful acquisition.
31. The apparatus of claim 28, wherein said apparatus further comprises a processor adapted to: initiate said receiver to acquire said acquisition information during said acquisition period in response to an emergency event; and initiate transmission of said stored acquisition information to a location server.
32. The apparatus of claim 28, wherein said acquisition information comprises unique identification information associated with a device.
33. The apparatus of claim 32, wherein said unique identification information comprises a media access control (MAC) address associated with said device.
34. The apparatus of claim 28, wherein said acquisition information comprises a measurement of received signal strength.
PCT/US2009/061225 2008-10-20 2009-10-20 Mobile receiver with location services capability WO2010048110A1 (en)

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Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030125045A1 (en) * 2001-12-27 2003-07-03 Riley Wyatt Thomas Creating and using base station almanac information in a wireless communication system having a position location capability
US7123928B2 (en) 2003-07-21 2006-10-17 Qualcomm Incorporated Method and apparatus for creating and using a base station almanac for position determination
US9137771B2 (en) * 2004-04-02 2015-09-15 Qualcomm Incorporated Methods and apparatuses for beacon assisted position determination systems
US8792876B1 (en) 2008-12-12 2014-07-29 Cisco Technology, Inc. System and method for provisioning flows in a WiMAX network environment
US8600297B2 (en) * 2009-07-28 2013-12-03 Qualcomm Incorporated Method and system for femto cell self-timing and self-locating
US20110199916A1 (en) * 2010-02-12 2011-08-18 David Garrett Method and system for determining the location of a wireless access point using single device based power measurements
US9058732B2 (en) * 2010-02-25 2015-06-16 Qualcomm Incorporated Method and apparatus for enhanced indoor position location with assisted user profiles
EP2545736B1 (en) * 2010-03-10 2020-12-30 Nokia Technologies Oy Exchange of messages relating to positioning data
US8704707B2 (en) 2010-06-02 2014-04-22 Qualcomm Incorporated Position determination using measurements from past and present epochs
US8862154B2 (en) * 2011-09-12 2014-10-14 Kt Corporation Location measuring method and apparatus using access point for wireless local area network service
CN102497629A (en) * 2011-12-13 2012-06-13 华为终端有限公司 Method for triggering co-registration of long term evolution (LTE) single-card dual-standby multimode terminal and terminal
EP2816827B1 (en) * 2013-04-25 2018-11-28 Huawei Technologies Co., Ltd. Method and apparatus for distributing information, and network system
TWI606425B (en) * 2016-09-02 2017-11-21 群邁通訊股份有限公司 Event notifying method, system and electronic device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6636740B1 (en) * 1998-06-16 2003-10-21 Ericsson Inc. Apparatus and methods for position computation based on broadcast initialization data
US20060208942A1 (en) * 2002-08-15 2006-09-21 Hemali Vyas Partial almanac collection system
US20080032706A1 (en) * 2006-08-01 2008-02-07 Leonid Sheynblat System And/Or Method For Providing Information Updates To A Location Server
US20080242312A1 (en) * 2007-03-29 2008-10-02 Palm, Inc. Updating position assist data on a mobile computing device

Family Cites Families (169)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4112421A (en) * 1975-04-16 1978-09-05 Information Identification Company, Inc. Method and apparatus for automatically monitoring objects
US4567483A (en) * 1982-12-10 1986-01-28 Sundstrand Data Control, Inc. Position based ground proximity warning system for aircraft
US5818603A (en) 1996-03-29 1998-10-06 Ricoh Company, Ltd. Method and system for controlling and communicating with machines using multiple communication formats
CA1321418C (en) 1988-10-05 1993-08-17 Joseph C. Mcmillan Primary land arctic navigation system
US5515419A (en) * 1992-06-01 1996-05-07 Trackmobile Tracking system and method for tracking a movable object carrying a cellular phone unit, and integrated personal protection system incorporating the tracking system
US5327144A (en) * 1993-05-07 1994-07-05 Associated Rt, Inc. Cellular telephone location system
NO942031L (en) 1994-06-01 1995-12-04 Ericsson As Creative Engineeri System for monitoring telephone networks and / or data communication networks, especially mobile telephone networks
US5537460A (en) * 1994-07-08 1996-07-16 Holliday, Jr.; Robert O. Method and apparatus for determining the precise location of a modified cellular telephone using registration messages and reverse control channel transmission
US5666330A (en) 1994-07-21 1997-09-09 Telecom Solutions, Inc. Disciplined time scale generator for primary reference clocks
US5588848A (en) 1994-09-08 1996-12-31 Lucent Technologies Inc. Low inductance surface-mount connectors for interconnecting circuit devices and method for using same
US5570412A (en) 1994-09-28 1996-10-29 U.S. West Technologies, Inc. System and method for updating a location databank
US5602903A (en) 1994-09-28 1997-02-11 Us West Technologies, Inc. Positioning system and method
US5731786A (en) * 1994-12-29 1998-03-24 Trimble Navigation Limited Compaction of SATPS information for subsequent signal processing
US5706333A (en) * 1995-02-24 1998-01-06 Teradyne, Inc. Method and apparatus for analyzing cellular telephone network
JP3095973B2 (en) 1995-03-24 2000-10-10 ケイディディ株式会社 Earth station position detection method in satellite communication system
US5613205A (en) * 1995-03-31 1997-03-18 Telefonaktiebolaget Lm Ericsson System and method of locating a mobile terminal within the service area of a cellular telecommunication system
US5657487A (en) * 1995-06-05 1997-08-12 Airnet Communications Corporation Mobile telephone location process making use of handoff data
US5717406A (en) * 1995-06-07 1998-02-10 Sanconix Inc. Enhanced position calculation
GB9511843D0 (en) 1995-06-10 1995-08-09 Phonelink Plc Cellular telephone subscriber location
US5736957A (en) * 1995-06-30 1998-04-07 The Johns Hopkins University Delay compensated doppler radar altimeter
US5727034A (en) 1995-07-26 1998-03-10 Nokia Telecommunications Oy Apparatus and method for synchronizing base sites individually in a communication system
US6208290B1 (en) * 1996-03-08 2001-03-27 Snaptrack, Inc. GPS receiver utilizing a communication link
US5841396A (en) 1996-03-08 1998-11-24 Snaptrack, Inc. GPS receiver utilizing a communication link
US5663734A (en) * 1995-10-09 1997-09-02 Precision Tracking, Inc. GPS receiver and method for processing GPS signals
GB9524754D0 (en) 1995-12-04 1996-04-24 Symmetricom Inc Mobile position determination
US5883598A (en) * 1995-12-15 1999-03-16 Signatron Technology Corporation Position location system and method
US5945944A (en) * 1996-03-08 1999-08-31 Snaptrack, Inc. Method and apparatus for determining time for GPS receivers
US6473623B1 (en) 1996-04-18 2002-10-29 At&T Wireless Services, Inc. Method for self-calibration of a wireless communication system
US5873040A (en) * 1996-08-13 1999-02-16 International Business Machines Corporation Wireless 911 emergency location
US6249252B1 (en) * 1996-09-09 2001-06-19 Tracbeam Llc Wireless location using multiple location estimators
WO1998010307A1 (en) 1996-09-09 1998-03-12 Dennis Jay Dupray Location of a mobile station
US6236365B1 (en) * 1996-09-09 2001-05-22 Tracbeam, Llc Location of a mobile station using a plurality of commercial wireless infrastructures
JPH10117166A (en) * 1996-10-08 1998-05-06 Nec Ic Microcomput Syst Ltd Mobile body communication system
US6215442B1 (en) * 1997-02-03 2001-04-10 Snaptrack, Inc. Method and apparatus for determining time in a satellite positioning system
US5812087A (en) * 1997-02-03 1998-09-22 Snaptrack, Inc. Method and apparatus for satellite positioning system based time measurement
US6122266A (en) 1997-02-19 2000-09-19 Lucent Technologies Inc. Multi-level sectorized CDMA communications
US6898197B1 (en) * 1997-02-28 2005-05-24 Interdigital Technology Corporation Geolocation of a mobile terminal in a CDMA communication system
US6215441B1 (en) * 1997-04-15 2001-04-10 Snaptrack, Inc. Satellite positioning reference system and method
GB2327014B (en) * 1997-06-30 2002-04-24 Ericsson Telefon Ab L M Mobile communications system
CA2220365A1 (en) * 1997-11-06 1999-05-06 Telecommunications Research Laboratories A cellular telephone location system
US6243587B1 (en) * 1997-12-10 2001-06-05 Ericsson Inc. Method and system for determining position of a mobile transmitter
US6167275A (en) 1997-12-17 2000-12-26 Motorola, Inc. Method and apparatus for determining a location of a communication unit in a wireless communication system
US6603966B1 (en) * 1997-12-23 2003-08-05 At&T Wireless Services, Inc. Method and system for optimizing performance of a mobile communication system
JPH11205845A (en) 1998-01-14 1999-07-30 Locus:Kk Position specifying system
US6526039B1 (en) * 1998-02-12 2003-02-25 Telefonaktiebolaget Lm Ericsson Method and system for facilitating timing of base stations in an asynchronous CDMA mobile communications system
US6216064B1 (en) * 1998-02-24 2001-04-10 Alliedsignal Inc. Method and apparatus for determining altitude
US6161018A (en) 1998-02-27 2000-12-12 Motorola, Inc. Method and system for estimating a subscriber's location in a wireless communication system service area
US6353412B1 (en) * 1998-03-17 2002-03-05 Qualcomm, Incorporated Method and apparatus for determining position location using reduced number of GPS satellites and synchronized and unsynchronized base stations
US6014102A (en) * 1998-04-17 2000-01-11 Motorola, Inc. Method and apparatus for calibrating location finding equipment within a communication system
US5999124A (en) 1998-04-22 1999-12-07 Snaptrack, Inc, Satellite positioning system augmentation with wireless communication signals
US6061018A (en) * 1998-05-05 2000-05-09 Snaptrack, Inc. Method and system for using altitude information in a satellite positioning system
US6230018B1 (en) * 1998-05-14 2001-05-08 Nortel Networks Limited Devices and processing in a mobile radio communication network having calibration terminals
US6313786B1 (en) * 1998-07-02 2001-11-06 Snaptrack, Inc. Method and apparatus for measurement processing of satellite positioning system (SPS) signals
US6393294B1 (en) * 1998-09-22 2002-05-21 Polaris Wireless, Inc. Location determination using RF fingerprinting
US6175500B1 (en) * 1998-09-22 2001-01-16 Lucent Technologies Inc. Surface mount thermal connections
US6222483B1 (en) * 1998-09-29 2001-04-24 Nokia Mobile Phones Limited GPS location for mobile phones using the internet
US6538600B1 (en) 1998-10-16 2003-03-25 Lucent Technologies Inc. Wireless assisted GPS using a reference location
WO2000023956A1 (en) 1998-10-22 2000-04-27 University Of Maryland Method and system for providing location dependent and personal identification information to a public safety answering point
SE519366C2 (en) 1998-11-17 2003-02-18 Ericsson Telefon Ab L M Method and devices for a radio communication system
US6166685A (en) 1998-11-19 2000-12-26 Qualcomm Incorporated Wireless user position update using infrastructure measurements
GB9827989D0 (en) 1998-12-19 1999-02-10 Koninkl Philips Electronics Nv Location beacon system
US6188354B1 (en) * 1999-03-29 2001-02-13 Qualcomm Incorporated Method and apparatus for determining the location of a remote station in a CDMA communication network
US6563809B1 (en) * 1999-04-28 2003-05-13 Tantivy Communications, Inc. Subscriber-controlled registration technique in a CDMA system
US6263208B1 (en) * 1999-05-28 2001-07-17 Lucent Technologies Inc. Geolocation estimation method for CDMA terminals based on pilot strength measurements
KR100330221B1 (en) 1999-09-13 2002-03-25 윤종용 Apparatus and method for constructing a zone data base for homezone service
US6275707B1 (en) * 1999-10-08 2001-08-14 Motorola, Inc. Method and apparatus for assigning location estimates from a first transceiver to a second transceiver
JP2001112050A (en) 1999-10-08 2001-04-20 Nec Commun Syst Ltd Position registration system and method for mobile communication system
US6313787B1 (en) 1999-11-12 2001-11-06 Motorola, Inc. Method and apparatus for assisted GPS protocol
US6490313B1 (en) 1999-12-11 2002-12-03 Verizon Laboratories Inc. System and method for PN offset index planning in a digital CDMA cellular network
WO2001050151A1 (en) 2000-01-06 2001-07-12 Brightcom Technologies Ltd. Integration of bluetooth functionality with a global positioning system
JP4292442B2 (en) 2000-01-31 2009-07-08 ソニー株式会社 Global positioning system receiver and portable radio terminal
GB0002547D0 (en) 2000-02-03 2000-03-29 Smartone Mobile Communications Locating system
US6950665B2 (en) * 2000-02-29 2005-09-27 Pctel, Inc. Methodology and system for generating a three-dimensional model of interference in a cellular wireless communication network
US7319847B2 (en) 2000-03-20 2008-01-15 Nielsen Mobile, Inc. Bitwise monitoring of network performance
US6388612B1 (en) * 2000-03-26 2002-05-14 Timothy J Neher Global cellular position tracking device
US6529164B1 (en) * 2000-03-31 2003-03-04 Ge Medical Systems Information Technologies, Inc. Object location monitoring within buildings
US6636744B1 (en) 2000-04-20 2003-10-21 Lucent Technologies Inc. Obtaining pilot phase offset time delay parameter for a wireless terminal of an integrated wireless-global positioning system
CA2405854C (en) 2000-05-03 2012-02-14 Telefonaktiebolaget Lm Ericsson Calibration of positioning systems
US6684158B1 (en) * 2001-02-28 2004-01-27 Sirf Technology, Inc. Method for aiding a global positioning system
US6501955B1 (en) 2000-06-19 2002-12-31 Intel Corporation RF signal repeater, mobile unit position determination system using the RF signal repeater, and method of communication therefor
JP3877135B2 (en) * 2000-07-05 2007-02-07 株式会社エヌ・ティ・ティ・ドコモ Peripheral zone table creation method and apparatus, program and storage medium in mobile communication system
US20070042790A1 (en) * 2000-07-14 2007-02-22 Norman Mohi Locating system and method
US6895249B2 (en) * 2000-07-14 2005-05-17 Qualcomm Incorporated Method and apparatus for broadcasting position location data in a wireless communication system
US7474896B2 (en) 2000-07-14 2009-01-06 Norman Mohi Locating system and method
US6466938B1 (en) 2000-07-31 2002-10-15 Motorola, Inc. Method and apparatus for locating a device using a database containing hybrid location data
US6487414B1 (en) * 2000-08-10 2002-11-26 Schema Ltd. System and method for frequency planning in wireless communication networks
US20020025822A1 (en) * 2000-08-18 2002-02-28 Hunzinger Jason F. Resolving ambiguous sector-level location and determining mobile location
FI109839B (en) 2000-08-22 2002-10-15 Nokia Corp A method for locating a mobile station
US6754470B2 (en) * 2000-09-01 2004-06-22 Telephia, Inc. System and method for measuring wireless device and network usage and performance metrics
US6445927B1 (en) 2000-09-18 2002-09-03 Motorola, Inc. Method and apparatus for calibrating base station locations and perceived time bias offsets in an assisted GPS transceiver
IL139078A0 (en) * 2000-10-16 2001-11-25 Wireless Online Inc Method and system for calibrating antenna towers to reduce cell interference
JP2002152104A (en) 2000-11-06 2002-05-24 Kddi Corp Device and method for measuring radio quality
US6429814B1 (en) * 2000-11-17 2002-08-06 Global Locate, Inc. Method and apparatus for enhancing a global positioning system with terrain model
US6692269B2 (en) * 2000-12-15 2004-02-17 Di/Dt, Inc. Circuit module with universal connectivity
US6503088B2 (en) * 2000-12-15 2003-01-07 Di/Dt, Inc. I-channel surface-mount connector with extended flanges
US6750396B2 (en) 2000-12-15 2004-06-15 Di/Dt, Inc. I-channel surface-mount connector
SE0004796D0 (en) 2000-12-21 2000-12-21 Cellpoint Systems Ab Method relating to positioning of mobile device
US6433735B1 (en) * 2000-12-26 2002-08-13 Telefonaktiebolaget (Lme) Mobile terminal and system and method for determining the geographic location of a mobile terminal
US7133909B2 (en) * 2001-01-12 2006-11-07 Microsoft Corporation Systems and methods for locating mobile computer users in a wireless network
US6438382B1 (en) * 2001-02-14 2002-08-20 Telefonaktiebolaget Lm Ericsson (Publ.) Expedited location determination in analog service areas
US6538601B2 (en) * 2001-02-27 2003-03-25 Itt Manufacturing Enterprises, Inc. Hybrid system for position determination by a mobile communications terminal
JP2002300100A (en) 2001-03-29 2002-10-11 Tu-Ka Cellular Tokyo Inc Analysis support device for speech quality
US6970795B1 (en) 2001-05-09 2005-11-29 Garmin Ltd. Method and apparatus for calculating altitude based on barometric and GPS measurements
US6570529B2 (en) 2001-05-24 2003-05-27 Lucent Technologies Inc. Autonomous calibration of a wireless-global positioning system
US6799050B1 (en) 2001-06-04 2004-09-28 Snaptrack, Inc. Reducing cross-interference in a combined GPS receiver and communication system
US6539306B2 (en) 2001-06-15 2003-03-25 Gentex Corporation Automotive mirror with integrated Loran components
US7065129B2 (en) * 2001-06-29 2006-06-20 Qualcomm, Inc. Acquisition of a gated pilot by avoiding partial correlation peaks
GB0117951D0 (en) 2001-07-24 2001-09-19 Koninkl Philips Electronics Nv Methods and apparatus for determining the position of a transmitter and mobile communitcations device
US6757544B2 (en) * 2001-08-15 2004-06-29 Motorola, Inc. System and method for determining a location relevant to a communication device and/or its associated user
US7359706B2 (en) 2001-08-21 2008-04-15 Motorola Inc. Data transmission for mobile wireless communication devices
US7133397B2 (en) * 2001-09-07 2006-11-07 L-3 Communications Corporation Time division duplex system utilizing global positioning system timing signals for access point synchronization
WO2003024131A1 (en) 2001-09-10 2003-03-20 Sirf Technology, Inc. System for utilizing cell information to locate a wireless device
US20030134648A1 (en) * 2001-10-04 2003-07-17 Reed Mark Jefferson Machine for providing a dynamic data base of geographic location information for a plurality of wireless devices and process for making same
US6965754B2 (en) * 2001-10-09 2005-11-15 Motorola, Inc. Satellite positioning system receiver with reference oscillator circuit and methods therefor
US6766169B2 (en) * 2001-10-30 2004-07-20 Qualcomm Incorporated Scheduling acquisition attempts of service providing systems
US8004969B2 (en) * 2001-11-07 2011-08-23 Tektronix, Inc. Cell level congestion policy management
JP3491631B2 (en) 2001-11-28 2004-01-26 株式会社デンソー Wireless communication terminal
US6806830B2 (en) 2001-12-31 2004-10-19 Texas Instruments Incorporated Electronic device precision location via local broadcast signals
US20030125045A1 (en) * 2001-12-27 2003-07-03 Riley Wyatt Thomas Creating and using base station almanac information in a wireless communication system having a position location capability
AU2002360755A1 (en) 2001-12-27 2003-07-24 Qualcomm, Incorporated Creating and using base station almanac information in a wireless communication system having a position location capability
US7127257B2 (en) 2001-12-27 2006-10-24 Qualcomm Incorporated Use of mobile stations for determination of base station location parameters in a wireless mobile communication system
US7383049B2 (en) * 2001-12-27 2008-06-03 Qualcomm Incorporated Automation of maintenance and improvement of location service parameters in a data base of a wireless mobile communication system
JP2003296152A (en) 2002-03-29 2003-10-17 Toshiba Corp Hsm system and migration control method for the system
AU2003215882A1 (en) 2002-04-01 2003-10-13 Schema Ltd. Hybrid channel allocation in a cellular network
US6799054B2 (en) * 2002-05-06 2004-09-28 Extricom, Ltd. Collaboration between wireless LAN access points using wired lan infrastructure
US7084809B2 (en) * 2002-07-15 2006-08-01 Qualcomm, Incorporated Apparatus and method of position determination using shared information
US6865395B2 (en) * 2002-08-08 2005-03-08 Qualcomm Inc. Area based position determination for terminals in a wireless network
PL375314A1 (en) * 2002-08-13 2005-11-28 Drs Communications Company, Llc Method and system for determining absolute positions of mobile communications devices using remotely generated positioning information
KR100722350B1 (en) * 2002-08-15 2007-05-29 서프 테크놀러지, 인코포레이티드 Interface for gps system
US7660588B2 (en) * 2002-10-17 2010-02-09 Qualcomm Incorporated Method and apparatus for improving radio location accuracy with measurements
JP4186042B2 (en) 2002-11-14 2008-11-26 日本電気株式会社 Wireless communication information collection method, information collection system, and mobile radio terminal
US7065351B2 (en) * 2003-01-30 2006-06-20 Qualcomm Incorporated Event-triggered data collection
KR100967197B1 (en) * 2003-05-13 2010-07-05 주식회사 현대시스콤 Clock transmission Apparatus for network synchronization between system and system
EP1632057B1 (en) * 2003-06-06 2014-07-23 Meshnetworks, Inc. Mac protocol for accurately computing the position of wireless devices inside buildings
JP2005020053A (en) 2003-06-23 2005-01-20 Sony Corp Reception position estimate system, receiver, and server apparatus
US20040263386A1 (en) 2003-06-26 2004-12-30 King Thomas M. Satellite positioning system receivers and methods
US8483717B2 (en) * 2003-06-27 2013-07-09 Qualcomm Incorporated Local area network assisted positioning
US7123928B2 (en) 2003-07-21 2006-10-17 Qualcomm Incorporated Method and apparatus for creating and using a base station almanac for position determination
US7293088B2 (en) * 2003-07-28 2007-11-06 Cisco Technology, Inc. Tag location, client location, and coverage hole location in a wireless network
US7286515B2 (en) * 2003-07-28 2007-10-23 Cisco Technology, Inc. Method, apparatus, and software product for detecting rogue access points in a wireless network
CN1860378A (en) 2003-09-18 2006-11-08 SiRF技术公司 Partial almanac collection system
US7751829B2 (en) * 2003-09-22 2010-07-06 Fujitsu Limited Method and apparatus for location determination using mini-beacons
US20050070304A1 (en) * 2003-09-30 2005-03-31 Farchmin David W. Distributed wireless positioning engine method and assembly
US7363028B2 (en) * 2003-11-04 2008-04-22 Universal Electronics, Inc. System and method for controlling device location determination
US7129891B2 (en) * 2003-11-21 2006-10-31 Xerox Corporation Method for determining proximity of devices in a wireless network
US9137771B2 (en) 2004-04-02 2015-09-15 Qualcomm Incorporated Methods and apparatuses for beacon assisted position determination systems
KR101122359B1 (en) 2004-05-07 2012-03-23 인터디지탈 테크날러지 코포레이션 Supporting emergency calls on a wireless local area network
US8145182B2 (en) * 2004-05-07 2012-03-27 Interdigital Technology Corporation Supporting emergency calls on a wireless local area network
US7433696B2 (en) * 2004-05-18 2008-10-07 Cisco Systems, Inc. Wireless node location mechanism featuring definition of search region to optimize location computation
US7209758B1 (en) * 2004-06-25 2007-04-24 Sprint Spectrum L.P. Method and system for sharing and/or centralizing mobile positioning information and geospatial data for roaming mobile subscriber terminals
KR100754613B1 (en) 2004-11-11 2007-09-05 삼성전자주식회사 A Location Tracking method and apparatus of User Euipment Filter using GPS and TDOA
US7751833B2 (en) 2005-03-15 2010-07-06 Nextel Communications Inc. System and method for determining a base transceiver station location
US7860527B2 (en) * 2005-05-12 2010-12-28 Qualcomm Incorporated Method and apparatus for receiving data and paging from multiple wireless communication systems
US7684473B2 (en) * 2005-06-01 2010-03-23 Qualcomm Incorporated Receiver for wireless communication network with extended range
US8515386B2 (en) * 2005-08-05 2013-08-20 Dennis J. Hasenfang Emergency services for voice over IP telephony (E-VoIP)
JP5059023B2 (en) 2005-12-09 2012-10-24 韓國電子通信研究院 Communication load reduction system and method for mobile location tracking platform
US7893873B2 (en) * 2005-12-20 2011-02-22 Qualcomm Incorporated Methods and systems for providing enhanced position location in wireless communications
US8150421B2 (en) * 2005-12-30 2012-04-03 Trueposition, Inc. User plane uplink time difference of arrival (U-TDOA)
US7515578B2 (en) 2006-05-08 2009-04-07 Skyhook Wireless, Inc. Estimation of position using WLAN access point radio propagation characteristics in a WLAN positioning system
US7821986B2 (en) * 2006-05-31 2010-10-26 Cisco Technology, Inc. WLAN infrastructure provided directions and roaming
JP2009543074A (en) * 2006-07-07 2009-12-03 スカイフック ワイヤレス,インク. System and method for collecting information from a WLAN-enabled access point to estimate the location of a WLAN positioning device
GB2443007B (en) * 2006-10-19 2010-10-20 Vodafone Plc Locating mobile terminals
EP2015535A1 (en) 2007-07-10 2009-01-14 Panasonic Corporation Detection of mobility functions implemented in a mobile node
US7598907B2 (en) * 2007-12-06 2009-10-06 Kyocera Corporation System and method for WWAN/WLAN position estimation
US8867520B2 (en) 2008-03-07 2014-10-21 Charles Nicholls Using a network frequency reference to augment timing Synchronization in a wireless base station
US8244274B2 (en) * 2008-03-18 2012-08-14 International Business Machines Corporation Enhanced wireless access point communications while traveling
US8090359B2 (en) * 2008-09-08 2012-01-03 Proctor Jr James Arthur Exchanging identifiers between wireless communication to determine further information to be exchanged or further services to be provided
WO2010030825A1 (en) * 2008-09-10 2010-03-18 Commlabs. Inc. Wide area positioning system
US8600297B2 (en) * 2009-07-28 2013-12-03 Qualcomm Incorporated Method and system for femto cell self-timing and self-locating

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6636740B1 (en) * 1998-06-16 2003-10-21 Ericsson Inc. Apparatus and methods for position computation based on broadcast initialization data
US20060208942A1 (en) * 2002-08-15 2006-09-21 Hemali Vyas Partial almanac collection system
US20080032706A1 (en) * 2006-08-01 2008-02-07 Leonid Sheynblat System And/Or Method For Providing Information Updates To A Location Server
US20080242312A1 (en) * 2007-03-29 2008-10-02 Palm, Inc. Updating position assist data on a mobile computing device

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