Assisted GPS solution in cellular networks

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dc.contributor.advisor Fulle, Ronald en_US
dc.contributor.advisor Glenn, Chance en_US
dc.contributor.advisor Indelicato, Mark en_US
dc.contributor.author Lissai, Gidon
dc.date.accessioned 2007-04-12T19:30:48Z
dc.date.available 2007-04-12T19:30:48Z en_US
dc.date.issued 2006
dc.identifier.uri http://hdl.handle.net/1850/3671
dc.description.abstract The ‘Wireless Enhanced 911’ rules, which were issued in 1996, state that the position of a mobile device should be sent to Public Safety Answering Point (‘PSAP’) once a 9-1-1 call takes place from it. The rules imposed the cellular carriers to integrate a technology into their networks so that the mobile device location can be transferred once a 9-1-1 call is made. One of the chosen technologies was the Global Positioning System (GPS). The solution suggests integrating a GPS receiver into every cellular device. But the GPS receiver, as a stand alone solution, has some major performance limitations in regards to the Wireless Enhanced 911 requirements. The Assisted GPS (A-GPS) technology improves the GPS receiver performances. It reduces the time it takes the receiver to calculate its location. It also enhances the receiver’s reception sensitivity and improves the calculated position accuracy. With the A-GPS technology, the GPS receiver solution becomes compatible with the rules requirements. Two of the four large wireless carriers in the U.S. had chosen the A-GPS as their location solution in their networks. The A-GPS technology became an important part of the cellular industry. The intention of the thesis is to explore the A-GPS solution and to show its necessity in today’s GPS-based solutions. The following aspects are reviewed in the thesis – how the A-GPS solution works, how it improves the GPS receiver performances, the technology that is being used to implement it, and how it integrates to the cellular network. Another A-GPS related aspect that is reviewed in the thesis is the integration of location-based applications in cellular networks. The location-based applications service is a new and growing market in the cellular industry as a result of the deployed location solutions. en_US
dc.language.iso en_US en_US
dc.subject Assisted GPS en_US
dc.subject Control plane en_US
dc.subject Doppler shift en_US
dc.subject Integration period en_US
dc.subject Location based application en_US
dc.subject Phase II en_US
dc.subject TDOA en_US
dc.subject Tier I carriers en_US
dc.subject Time to first fix- TTFF en_US
dc.subject UE- assisted en_US
dc.subject UE- based en_US
dc.subject Wireless E911 en_US
dc.subject.lcc TK5103.2 .L47 2007
dc.subject.lcsh Network performance (Telecommunication)
dc.subject.lcsh Cellular telephone systems
dc.subject.lcsh Wireless communication systems
dc.subject.lcsh Global Positioning System
dc.subject.lcsh Emergency communication systems
dc.title Assisted GPS solution in cellular networks en_US
dc.type Thesis en_US
dc.contributor.advisorDeptChair Koontz, Warren

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