Cellular telephone system that uses position of a mobile unit to make call management decisions
December 26, 2011. 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 ReferencesMobile radiotelephone station two-way ranging system Quantized hyperbolic and inverse hyperbolic object location system Comprehensive automatic mobile radio telephone system Mobile telephone location system Rural radiotelephone system Mobile radio paging test system Cellular position locating system Multi-site dispatching system cell registration Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system Satellite mobile communication system for rural service areas InventorsApplicationNo. 813494 filed on 12/26/1991US Classes:455/456.3, Position based personal service342/357.1, Combined with telecommunication455/12.1, Space satellite455/439, Handoff initiated by another source (e.g., target, user initiated, mobile switching center (MSC), or mobile telephone switching office (MTSO), etc.)455/440Based upon unit locationExaminersPrimary: Kuntz, CurtisAssistant: Bost, Dwayne D. Attorney, Agent or FirmInternational ClassH04M 011/00AbstractA cellular telephone system includes a plurality of cell sites and a mobile telephone switching office. Call management, including selection of a cell site most appropriate for a call associated with a mobile unit, are made based on the geographic location of the mobile unit as opposed to the strength of the signal associated with the call. The geographic location of the mobile unit is precisely determined using a NAVSTAR global positioning system, or its equivalent. Each mobile unit includes a GPS receiver that receives information from a geostationary satellite to determine the precise location of the mobile unit. This position information is relayed to the cell site initially managing the mobile unit, and the mobile unit is handed off to a cell site that is most appropriate for the call. Initial selection of an entrance cell site is made based on signal strength, but further call management decisions are made based on location of the mobile unit.Field of SearchSpace satelliteWith plural repeater or relay systems With synchronizing of satellites or system With recording Mapping Including a satellite Position indicating (e.g., triangulation) By computer By plotting table Traffic Having traffic control Land vehicle location (e.g., bus, police car Distance Plural transmitters only | |
