摘要:
A wireless location system is disclosed having one or more location centers for locating mobile stations (MS) based on, e.g., WIFI, CDMA, AMPS, NAMPS, TDMA, GPRS, and GSM. MS location requests can be processed via, e.g., Internet communication between a network of location centers. A plurality of MS locating technologies may be used, including those based on: two-way TOA and TDOA; pattern recognition; distributed antennas; and reduced coverage base stations. The system includes strategies for: automatically adapting and calibrating system performance according to environmental and geographical changes; automatically capturing location signal data for enhancing a historical data base retaining predictive location signal data; evaluating MS locations according to heuristics and constraints related to, e.g., terrain, MS velocity and path; and adjusting likely MS locations adaptively and statistically. The system is useful for emergency calls, tracking, routing, people and animal location including applications for confinement to and exclusion from certain areas.
摘要:
A location system is disclosed for wireless telecommunication infrastructures. The system is an end-to-end solution having one or more location systems for outputting requested locations of hand sets or mobile stations (MS) based on, e.g., AMPS, NAMPS, CDMA or TDMA communication standards, for processing both local mobile station location requests and more global mobile station location requests via, e.g., Internet communication between a distributed network of location systems. The system uses a plurality of mobile station locating technologies including those based on: (1) two-way TOA and TDOA; (2) home base stations and (3) distributed antenna provisioning. Further, the system can be modularly configured for use in location signaling environments ranging from urban, dense urban, suburban, rural, mountain to low traffic or isolated roadways. The system is useful for 911 emergency calls, tracking, routing, people and animal location including applications for confinement to and exclusion from certain areas.
摘要:
A hybrid wireless location system and method is disclosed for locating mobile stations (MSs). Multiple wireless location techniques (FOMs) are provided for MS location. One or more FOMs can be activated in various combinations (serially or parallelly) for outputting one or more MS location estimates with signal protocols being, e.g., CDMA, TDMA, or GSM. Resulting location estimates may be for, e.g.: 911 emergency calls, tracking, navigation, people and animal location, and/or applications for confinement to and/or exclusion from geographical areas. System components may be distributed on a network (e.g., the Internet). FOMs may be based on one or more of: TOA, TDOA, AOA, signal pattern recognition/fingerprinting, statistical analysis, base station coverage, GPS signals received at the MS, and/or input from mobile stations. Location estimates are enhanced by adjusting MS estimates (and/or confidences therefor) according to: a past performance of the FOM providing such estimates, and/or MS geolocation or velocity constraints.
摘要:
A hybrid wireless location system and method is disclosed for locating mobile stations (MSs). Multiple wireless location techniques (FOMs) are provided for MS location. One or more FOMs can be activated in various combinations (serially or parallelly) for outputting one or more MS location estimates with signal protocols being, e.g., CDMA, TDMA, or GSM. Resulting location estimates may be for, e.g.: 911 emergency calls, tracking, navigation, people and animal location, and/or applications for confinement to and/or exclusion from geographical areas. System components may be distributed on a network (e.g., the Internet). FOMs may be based on one or more of: TOA, TDOA, AOA, signal pattern recognition/fingerprinting, statistical analysis, base station coverage, GPS signals received at the MS, and/or input from mobile stations. Location estimates are enhanced by adjusting MS estimates (and/or confidences therefor) according to: a past performance of the FOM providing such estimates, and/or MS geolocation or velocity constraints.
摘要:
A hybrid wireless location system and method is disclosed for locating mobile stations (MSs). Multiple wireless location techniques (FOMs) are provided for MS location. One or more FOMs can be activated in various combinations (serially or parallelly) for outputting one or more MS location estimates with signal protocols, e.g., CDMA, TDMA, or GSM. Resulting location estimates may be for, e.g.: 911 emergency calls, tracking, navigation, people and animal location, andJor applications for confinement to andlor exclusion from geographical areas. System components may be distributed on a network (e.g., the Internet). FOMs may be based on one or more of: TOA, TDOA, AOA, signal pattern recognitionlfingerprinting, statistical analysis, base station coverage, GPS signals received at the MS, andlor input from mobile stations. Location estimates are enhanced by adjusting MS estimates (and/or confidences therefor) according to: a past performance of the FOM providing such estimates, and/or MS geolocation or velocity constraints.
摘要:
A wireless location system is disclosed. Locations of mobile stations (MS) may be determined using one or more MS locating technologies based on, e.g.: computed offsets from terrestrial base stations; satellite transmissions; indoor antennas; low range base stations; and in particular, signal pattern recognition for associating wireless signal characteristics with distinct geographic locations. The system can: adapt and/or calibrate its performance with environmental and geographical changes; capture location signal data for enhancement of a self-maintaining database of predictive location signal data; evaluate MS locations using heuristics and constraints related to terrain, MS velocity and path extrapolation; and adjust MS locations adaptively and/or statistically for providing more reliable and accurate locations. The system can be configured for environments ranging from dense urban, urban, suburban, rural, mountain to low traffic or isolated roadways. The system is useful for 911 emergencies, tracking, routing (e.g., to desired products/services), people and animal location including applications for confinement to and exclusion from certain areas.
摘要:
A location is disclosed for wireless telecommunication infrastructures. The systems output requested locations of hand sets or mobile stations (MS) based on, e.g., AMPS, NAMPS, CDMA or TDMA communication standards. The system determines both local MS locations, and more global MS location requests via, e.g., Internet communication. The system uses a plurality of mobile station locating technologies, including those based on, e.g., (1) two-way TOA and TDOA; (2) home base stations and (3) distributed antenna provisioning. The system is useful for 911 emergency calls, tracking, routing, people and animal location including applications for confinement to and exclusion from certain areas. The system is particularly useful for estimating a location of an MS using information received from a commercial mobile radio service provider (CMRS) for which the MS is not registered for subscriber services.
摘要:
A location system for commercial wireless telecommunication infrastructures (CMRRs). The system is an end-to-end solution having one or more location systems (42) for outputting requested locations of commercially available hand sets or mobile stations (not shown) based on, e.g. AMPS, NAMPS, CDMA or TDMA communication standards, for processing both local mobile station location requests and more global mobile station location requests via, e.g., Internet communication between a distributed network of location systems. The system uses a plurality of mobile station locating technologies including those based on: two-way TOA and TDOA; home base stations and distributed antenna provisioning. Further, the system can be modularly configured for use in location signaling environments ranging from urban, dense urban, suburban, rural, mountain to low traffic or isolated roadways. Accordingly, the system is useful for 911 emergency calls, tracking, routing, people and animal location including applications for confinement to and from certain areas.
摘要:
A wireless location system/method is disclosed having one or more location centers for locating mobile units. Mobile unit location requests can utilize Internet communication between a network of location centers. A plurality of mobile unit locating technologies may be used, including those based on: TOA, TDOA, GPS, locations of other mobile units in proximity of the mobile unit being located, indoor wireless signal detection units; and reduced coverage base stations. Location determination strategies disclosed: adapting and calibrating system performance according to environmental and geographical changes, using location signal data for enhancing a database of predictive location data, heuristically evaluating mobile unit estimates related to terrain, mobile unit velocity and path, and adjusting mobile unit location estimations adaptively or statistically. The system/method is useful for emergency calls, tracking, routing, people and animal location, including applications for confinement to and exclusion from certain areas.
摘要:
A wireless location system is disclosed having one or more location centers for locating mobile stations (MS) based on, e.g., WIFI, CDMA, AMPS, NAMPS, TDMA, GPRS, and GSM. MS location requests can be processed via, e.g., Internet communication between a network of location centers. A plurality of MS locating technologies may be used, including those based on: two-way TOA and TDOA; pattern recognition; distributed antennas; and reduced coverage base stations. The system includes strategies for: automatically adapting and calibrating system performance according to environmental and geographical changes; automatically capturing location signal data for enhancing a historical data base retaining predictive location signal data; evaluating MS locations according to heuristics and constraints related to, e.g., terrain, MS velocity and path; and adjusting likely MS locations adaptively and statistically. The system is useful for emergency calls, tracking, routing, people and animal location including applications for confinement to and exclusion from certain areas.