Slotted mode acquisition
First Claim
1. A method for conserving resources at a tag, the method comprising:
- entering an awake state at the tag from a sleep state at a first time, wherein the first time occurs within a predetermined period prior to a communication event, and further wherein the predetermined period is greater than or equal to a worst-case determination period for determining a timing offset relative to an access point;
determining an initial timing offset relative to the access point during the predetermined period;
entering the sleep state for a remainder of the predetermined period upon determination of the initial timing offset;
entering the awake state for the communication event; and
determining the timing offset relative to the access point based at least in part on the initial timing offset.
3 Assignments
0 Petitions
Accused Products
Abstract
A method for conserving resources in a communication system includes entering an awake state from a sleep state at a first time, where the first time occurs a predetermined period prior to a communication event. The predetermined period is greater than or equal to a worst-case determination period for determining a timing offset relative to an access point. An initial timing offset relative to the access point is determined during the predetermined period. The sleep state is entered for a remainder of the predetermined period upon determination of the initial timing offset. The awake state is entered for the communication event. The timing offset relative to the access point is determined based at least in part on the initial timing offset.
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Citations
20 Claims
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1. A method for conserving resources at a tag, the method comprising:
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entering an awake state at the tag from a sleep state at a first time, wherein the first time occurs within a predetermined period prior to a communication event, and further wherein the predetermined period is greater than or equal to a worst-case determination period for determining a timing offset relative to an access point; determining an initial timing offset relative to the access point during the predetermined period; entering the sleep state for a remainder of the predetermined period upon determination of the initial timing offset; entering the awake state for the communication event; and determining the timing offset relative to the access point based at least in part on the initial timing offset. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A tag for communicating in a communication system, the tag comprising:
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a receiver; and a processor operatively coupled to the receiver and configured to cause the tag to enter an awake state from a sleep state at a first time, wherein the first time occurs within a predetermined period prior to a communication event, and further wherein the predetermined period is greater than or equal to a worst-case determination period for determining a timing of an access point; determine an initial timing of the access point during the predetermined period; cause the tag to enter the sleep state for a remainder of the predetermined period upon determination of the initial timing; cause the tag to enter the awake state for the communication event; and determine the timing of the access point for use during the communication event, wherein the timing is determined based at least in part on the initial timing. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A non-transitory computer-readable medium having computer-readable instructions stored thereon that, upon execution by a processor, cause a tag to:
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enter an awake state from a sleep state at a first time, wherein the first time occurs within a predetermined period prior to a communication event, and further wherein the predetermined period is greater than or equal to a worst-case determination period for determining a timing offset relative to an access point; determine an initial timing offset relative to the access point during the predetermined period; enter the sleep state for a remainder of the predetermined period upon determination of the initial timing offset; enter the awake state for the communication event; and determine the timing offset relative to the access point for use during the communication event, wherein the timing offset is determined based at least in part on the initial timing offset. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification