Method and system for providing an energy efficient exchange of information in wireless networks
First Claim
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1. A method of synchronizing a first device and a second device, comprising:
- generating a first tone by the first device, the first tone one of (a) including an identity of the second device and (b) generated at a predefined time;
receiving the first tone by the second device;
setting a clock of the second device based on the received first tone;
sending an acknowledgment by the second device to the first device;
(i) waiting for a predefined period of time by the second device for an indication of acknowledged receipt of the acknowledgement;
(ii) waking up in a subsequent supervision time slot to receive the indication of acknowledged receipt of the acknowledgement if the indication is not received within the predefined period of time;
repeating steps (i) and (ii) for a predefined number of times; and
transmitting a poll by the second device to the first device if the indication of acknowledged receipt is not received.
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Abstract
A method and system to synchronize a first device and a second device includes generating a first tone by the first device, the first tone one of including an identity of the second device and generated at a predefined time, receiving the first tone by the second device, setting a clock of the second device based on the received first time, and sending an acknowledgment by the second device to the first device.
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Citations
15 Claims
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1. A method of synchronizing a first device and a second device, comprising:
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generating a first tone by the first device, the first tone one of (a) including an identity of the second device and (b) generated at a predefined time; receiving the first tone by the second device; setting a clock of the second device based on the received first tone; sending an acknowledgment by the second device to the first device; (i) waiting for a predefined period of time by the second device for an indication of acknowledged receipt of the acknowledgement; (ii) waking up in a subsequent supervision time slot to receive the indication of acknowledged receipt of the acknowledgement if the indication is not received within the predefined period of time; repeating steps (i) and (ii) for a predefined number of times; and transmitting a poll by the second device to the first device if the indication of acknowledged receipt is not received. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification