Mobile-Server Protocol for Location-Based Services
First Claim
1. A method of providing location-based services to a mobile user device in a communication system, the method comprising the steps of:
- receiving a trigger message from the mobile user device over a wireless link; and
sending an update message to the mobile user device over the wireless link responsive to the trigger message;
wherein the update message is sent within a period of time after receipt of the trigger message that is less than a dormancy time of the wireless link.
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Abstract
Location-based services are provided in a communication system comprising a wireless network. In one aspect, a mobile user device sends a trigger message to a server over a wireless link of the network. The server in response to the trigger message sends an update message to the mobile user device over the wireless link. The update message is sent within a period of time after the trigger message that is less than a dormancy time of the wireless link. The update message may specify, for example, a defined area around a location identified in the trigger message, one or more stationary fences associated with the mobile user device that overlap with the defined area and that are active or become active within a designated time frame, and a projected time frame within which a proximity-crossing event is likely to occur for at least one user device pair that includes the mobile user device.
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Citations
22 Claims
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1. A method of providing location-based services to a mobile user device in a communication system, the method comprising the steps of:
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receiving a trigger message from the mobile user device over a wireless link; and sending an update message to the mobile user device over the wireless link responsive to the trigger message; wherein the update message is sent within a period of time after receipt of the trigger message that is less than a dormancy time of the wireless link. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus for use in providing location-based services to a mobile user device in a communication system, the apparatus comprising:
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a processing device having a processor coupled to a memory; wherein the processing device is configured to receive a trigger message from the mobile user device over a wireless link, and to send an update message to the mobile user device over the wireless link responsive to the trigger message; wherein the update message is sent within a period of time after receipt of the trigger message that is less than a dormancy time of the wireless link. - View Dependent Claims (11)
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12. A method of obtaining location-based service updates in a mobile user device in a communication system, the method comprising the steps of:
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sending a trigger message from the mobile user device over a wireless link; and receiving an update message in the mobile user device over the wireless link responsive to the trigger message; wherein the update message is received within a period of time after sending the trigger message that is less than a dormancy time of the wireless link. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A mobile user device comprising
a processor; -
a memory coupled to the processor; and a network interface coupled to the processor; wherein the mobile user device is operative to send a trigger message over a wireless link, and to receive an update message over the wireless link responsive to the trigger message; wherein the update message is received within a period of time after sending the trigger message that is less than a dormancy time of the wireless link.
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Specification