Energy efficient roaming of a mobile device
First Claim
1. A method comprising:
- activating a radio in a mobile device by a processor of the mobile device, the radio configured to communicate with a wireless network;
provisioning the mobile device with at least one pre-determined environment profile, wherein the at least one pre-determined environment profile comprises conditions under which the radio is unable to connect with the wireless network;
sensing, by a sensor of the mobile device, an environmental condition of the mobile device to generate a sensor signal;
generating, by the processor of the mobile device, an environmental profile of the mobile device based at least on the sensor signal;
comparing, by the processor of the mobile device, the environmental profile of the mobile device with the at least one pre-determined environmental profile;
deactivating, by the processor of the mobile device, the activated radio when the comparing indicates that the environmental profile is above a threshold of the pre-determined environmental profile for a first period of time; and
reactivating, by the processor of the mobile device, the deactivated radio when the comparing indicates that the environmental profile is below a threshold of the pre-determined environmental profile for a second period of time,wherein the sensor is an altimeter and the wireless network comprises an IEEE 802.11 wireless communication system, and wherein the environmental profile further comprises a rate of change in altitude of the mobile device, and wherein the threshold indicates that the mobile device is within a building, whereupon the radio is activated.
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Accused Products
Abstract
Energy efficient roaming of a mobile device is described. The mobile device can include a sensor for sensing a motion of the mobile device to generate a sensor signal. A radio is capable of communicating with a wireless network. A processor activates the radio in the mobile device. The processor generates an environmental profile of the mobile device based at least on the sensor signal. A memory is coupled to the processor for storing the environmental profile. The processor deactivates the radio when the environmental profile indicates that the rate of motion of the mobile device is above a predetermined threshold for a first period of time. The processor reactivates the deactivated radio when the environmental profile indicates that the rate of motion of the mobile device is below the predetermined threshold for a second period of time.
19 Citations
20 Claims
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1. A method comprising:
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activating a radio in a mobile device by a processor of the mobile device, the radio configured to communicate with a wireless network; provisioning the mobile device with at least one pre-determined environment profile, wherein the at least one pre-determined environment profile comprises conditions under which the radio is unable to connect with the wireless network; sensing, by a sensor of the mobile device, an environmental condition of the mobile device to generate a sensor signal; generating, by the processor of the mobile device, an environmental profile of the mobile device based at least on the sensor signal; comparing, by the processor of the mobile device, the environmental profile of the mobile device with the at least one pre-determined environmental profile; deactivating, by the processor of the mobile device, the activated radio when the comparing indicates that the environmental profile is above a threshold of the pre-determined environmental profile for a first period of time; and reactivating, by the processor of the mobile device, the deactivated radio when the comparing indicates that the environmental profile is below a threshold of the pre-determined environmental profile for a second period of time, wherein the sensor is an altimeter and the wireless network comprises an IEEE 802.11 wireless communication system, and wherein the environmental profile further comprises a rate of change in altitude of the mobile device, and wherein the threshold indicates that the mobile device is within a building, whereupon the radio is activated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A mobile device comprising:
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a sensor sensing an environmental condition of the mobile device to generate a sensor signal; a radio configured to communicate with a wireless network; and a memory coupled to a processor and storing at least one pre-determined environmental profile, wherein the at least one pre-determined environmental profile comprises conditions under which the radio is unable to connect with the wireless network; the processor configured to; activate the radio in the mobile device; generate an environmental profile of the mobile device based at least on the sensor signal; compare the environmental profile of the mobile device with the at least one predetermined environmental profile; de-activate the activated radio when the comparing indicates that the environmental profile is above a threshold of the pre-determined environmental profile for a first period of time; and re-activate the deactivated radio when the comparing indicates that the environmental profile is below a threshold of the pre-determined environmental profile for a second period of time, wherein the sensor is an altimeter and the wireless network comprises an IEEE 802.11 wireless communication system, and wherein the environmental profile further comprises a rate of change in altitude of the mobile device, and wherein the threshold indicates that the mobile device is within a building, whereupon the radio is activated. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification