Low duty cycle device protocol
First Claim
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1. An apparatus comprising:
- means for processing signals received at a receiver; and
means for intermittently awakening a device at a wake up time from a hibernating state in synchronization with said apparatus to exchange information with said apparatus over a wireless communication network, said information including location information which is based, at least in part, on said processed signals,wherein the hibernating state is based on a hibernation duty cycle that indicates a time interval at which said device is to awaken from the hibernating state, wherein said time interval is defined based, at least in part, on an uncertainty associated with a delay between initiating transmission of said information and receipt at said device from a downlink, andwherein the wake up time is determined based at least in part on a hash function of the hibernation duty cycle.
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Abstract
The subject matter disclosed herein relates to a system and method for establishing communication between a low duty cycle device and other devices through a wireless communication network. In one particular implementation, the low duty cycle device may awaken from a hibernating state in synchronization with transmission of messages.
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Citations
26 Claims
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1. An apparatus comprising:
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means for processing signals received at a receiver; and means for intermittently awakening a device at a wake up time from a hibernating state in synchronization with said apparatus to exchange information with said apparatus over a wireless communication network, said information including location information which is based, at least in part, on said processed signals, wherein the hibernating state is based on a hibernation duty cycle that indicates a time interval at which said device is to awaken from the hibernating state, wherein said time interval is defined based, at least in part, on an uncertainty associated with a delay between initiating transmission of said information and receipt at said device from a downlink, and wherein the wake up time is determined based at least in part on a hash function of the hibernation duty cycle. - View Dependent Claims (2, 3, 4)
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5. A method comprising:
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receiving messages addressed to a device at a server; and scheduling transmission of said messages to said device through a downlink portion of a wireless communication link during intervals in which said device is awakened at a wake up time from a hibernating state, wherein said intervals are defined based, at least in part, on an uncertainty associated with a delay between transmission of said messages and receipt at said device from said downlink, wherein the hibernating state is based on a hibernation duty cycle that indicates a time interval at which said device is to awaken from the hibernating state, in synchronization with said server to exchange information with said server over said wireless communication link, and wherein the wake up time is determined based at least in part on a hash function of the hibernation duty cycle. - View Dependent Claims (6, 7, 8, 9, 10, 11)
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12. An article comprising:
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a storage medium having machine-readable instructions stored thereon which, if executed by a computing platform, are adapted to cause said computing platform to store messages addressed to a device in a data structure of a server; and schedule transmission of said messages to said device through a downlink portion of a wireless communication link during intervals in which said device is awakened at a wake up time from a hibernating state, wherein said instructions, if executed, are further adapted to cause said computing platform to define said interval based, at least in part, on an uncertainty associated with a delay between transmission of said messages and receipt at said device from said downlink, wherein the hibernating state is based on a hibernation duty cycle that indicates a time interval at which said device is to awaken from the hibernating state, in synchronization with said server to exchange information with said server over said wireless communication link, and wherein the wake up time is determined based at least in part on a hash function of the hibernation duty cycle. - View Dependent Claims (13, 14, 15, 16)
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17. An apparatus comprising:
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a computing platform, said computing platform being adapted to; store messages addressed to a device in a data structure of said apparatus; and schedule transmission of said messages to said device through a downlink portion of a wireless communication link during intervals in which said device is awakened at a wake up time from a hibernating state, wherein said intervals are defined based, at least in part, on an uncertainty associated with a delay between initiating transmission of said messages and receipt at said device from said downlink, wherein the hibernating state is based on a hibernation duty cycle that indicates a time interval at which said device is to awaken from the hibernating state, in synchronization with said apparatus to exchange information with said apparatus over said wireless communication link, and wherein the wake up time is determined based at least in part on a hash function of the hibernation duty cycle. - View Dependent Claims (18, 19, 20, 21)
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22. An apparatus comprising:
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means for receiving messages addressed to a device at said apparatus; and means for scheduling transmission of said messages to said device through a downlink portion of a wireless communication link during intervals in which said device is awakened at a wake up time from a hibernating state, wherein said intervals are defined based, at least in part, on an uncertainty associated with a delay between initiating transmission of said messages and receipt at said device from said downlink, wherein the hibernating state is based on a hibernation duty cycle that indicates a time interval at which said device is to awaken from the hibernating state, in synchronization with said apparatus to exchange information with said apparatus over said wireless communication link, and wherein the wake up time is determined based at least in part on a hash function of the hibernation duty cycle. - View Dependent Claims (23, 24, 25, 26)
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Specification