Mobile station combining telecommunications and positioning functions, and a corresponding method of receiving positioning signals by a mobile station
April 9, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesControl signal receiving system Position aided subscriber unit for a satellite cellular system System for controlling operations of GPS receiver unit and radio telephone unit for automotive vehicle Signal communication method and apparatus Wireless telephone distribution system with time and space diversity transmission for determining receiver location Paging/messaging system using GPS satellites Mobile location reporting apparatus and methods Locating system and method using a mobile communications network Patent #: 5913170 InventorAssigneeApplicationNo. 057513 filed on 04/09/1998US Classes:370/337, Multiple access (e.g., TDMA)342/357.12, GPS receiver signal processing370/347Multiple access (e.g., TDMA)ExaminersPrimary: Hsu, Alpus H.Assistant: Nguyen, Tan T. Attorney, Agent or FirmForeign Patent References
International ClassesH04B 007/185H04B 007/212 Foreign Application Priority Data1997-04-10 FRAbstractThe invention relates to a mobile station of a digital cellular communications system, the station being of the type comprising:means for transmitting and receiving telecommunications signals by radio, in time division multiple access mode;means for receiving positioning signals transmitted by a positioning system; andprocessor means for processing said telecommunications signals and said positioning signals.According to the invention, said processor means are continuously connected to said means for transmitting and receiving telecommunications signals and to said means for receiving positioning signals, said processor means making use of received positioning signals during moments in which said telecommunications signals are not being transmitted and are not being received.Field of SearchMultiple access (e.g., TDMA)Plural usage of common antenna Channel assignment Combining or distributing information via time channels Multiple access (e.g., TDMA) Channel reservation scheme Using time division multiplexing Time division (TDMA) Time slot interchange, per se Having supervisory signaling Signaling (ancillary to main information) Inserted in gaps in main information Information superimposed on other information Based upon unit location GPS receiver signal processing Determining relative position (e.g., distance or direction) With transmission of location-indicative information to or from a remote station With storage device (i.e., map or database) Using Global Positioning Satellite (GPS or Glonass) Tracking or monitoring (i.e., lost or stolen vehicles) With position indicating Combined with secondary navigation system (i.e., LORAN, gyroscope, inertial, dead reckoning, etc.) Using differential correction Using Doppler frequency shift With accuracy enhancing With ambiguity resolving With particular action taken responsive to position Using low Earth orbit (telecommunication) satellites Attitude determination Satellite selection (i.e., tracking or acquisition) Combined with telecommunication | |
