Mechanism for reducing time away from packet switched operation in a single radio solution
First Claim
1. A wireless mobile device comprising:
- a receiver/transmitter unit configured to operate in a first mode according to a first radio access technology and a second mode according to a second radio access technology;
a global positioning system (GPS) unit configured to provide navigation information based upon a received GPS signal; and
an error unit configured to generate a first frequency error estimation based upon signals received during operation in the first mode and to provide the first frequency error estimation to the GPS unit;
wherein the error unit is further configured to generate a second frequency error estimation based upon signals received during operation in the second mode; and
wherein in response to the receiver/transmitter unit operating in the second mode for greater than a predetermined amount of time, the error unit is configured to provide the second frequency error estimation to the GPS unit.
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Accused Products
Abstract
A single radio wireless communications device is contemplated in which the user equipment (UE) operates according to more than one radio access technology. The UE may operate preferentially according to a first radio access technology, and may switch to a different radio access technology at predetermined intervals to check for incoming calls. An error unit within the UE may provide frequency error estimates to a GPS unit during operation according to the first radio access technology based upon signals received in the first radio access technology, unless any time spent in the different radio access technology is longer that a predetermined duration. In response to the predetermined duration being met, the error unit may provide the frequency error estimation to the GPS unit based upon signals received in the different radio access technology.
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Citations
21 Claims
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1. A wireless mobile device comprising:
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a receiver/transmitter unit configured to operate in a first mode according to a first radio access technology and a second mode according to a second radio access technology; a global positioning system (GPS) unit configured to provide navigation information based upon a received GPS signal; and an error unit configured to generate a first frequency error estimation based upon signals received during operation in the first mode and to provide the first frequency error estimation to the GPS unit; wherein the error unit is further configured to generate a second frequency error estimation based upon signals received during operation in the second mode; and wherein in response to the receiver/transmitter unit operating in the second mode for greater than a predetermined amount of time, the error unit is configured to provide the second frequency error estimation to the GPS unit. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method comprising:
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a wireless mobile device receiving signals while operating in a first mode according to a first radio access technology and receiving signals while operating in a second mode according to a second radio access technology; a global positioning system (GPS) unit of the wireless mobile device providing navigation information; generating a first frequency error estimation based upon first signals received during operation in the first mode, and providing the first frequency error estimation to the GPS unit; and generating a second frequency error estimation based upon second signals received during operation in the second mode; wherein in response to receiving signals in the second mode for greater than a predetermined amount of time, providing the second frequency error estimation to the GPS unit. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method comprising:
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operating a wireless mobile device in a first mode according to a first radio access technology for a first duration; generating a first frequency error estimation based upon signals received during operation in the first mode, and providing the first frequency error estimation to a Global Positioning System (GPS) unit; operating the wireless mobile device in a second mode according to a second radio access technology for a second duration at predetermined intervals of time, and in response to receiving an incoming message; and generating a second frequency error estimation based upon signals received during operation in the second mode; wherein in response to operating the wireless mobile device in the second mode for greater than a predetermined amount of time, providing the second frequency error estimation to the GPS unit. - View Dependent Claims (14, 15, 16)
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17. A wireless mobile device comprising:
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a receiver/transmitter unit configured to operate in a first mode according to a first radio access technology, and to operate in a second mode according to a second radio access technology; a global positioning system (GPS) unit configured to provide navigation information based upon a received GPS signal; an error unit configured to generate a first frequency error estimation based upon signals received during operation in the first mode and to provide the first frequency error estimation to the GPS unit, and to generate a second frequency error estimation based upon signals received during operation in the second mode; wherein the error unit is further configured to inhibit providing the second frequency error estimation to the GPS unit until a predetermined amount of time has elapsed while operating in the second mode. - View Dependent Claims (18, 19, 20, 21)
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Specification