Access and power management for centralized networks
First Claim
1. A method of macroscopic power management by a body area network (BAN) node, comprising:
- transmitting a connection request frame to a network hub, the connection request frame including;
a first requested wakeup field specifying a unit of beacon periods; and
a second requested wakeup field specifying an intended next wakeup beacon period;
receiving a connection assignment frame from the network hub, the connection assignment frame including a first assigned wakeup field associated with a periodic allocation and a second assigned wakeup field associated with an assigned next wakeup beacon period;
entering an inactive state; and
waking up based on the first assigned wakeup field and the second assigned wakeup field.
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Abstract
A system and method for managing power in a subnet having a hub in communication with one or more nodes is disclosed. The hub and nodes communicate using one or more non-contention access methods, such as scheduled, polled or posted access. The node may enter a sleep or hibernation state while no scheduled, polled or posted allocation interval is pending. The hibernation state allows the node to hibernate through one or more entire beacon periods. In the sleep state, the node may be asleep between any scheduled, polled and posted allocation intervals for the node or during another node'"'"'s scheduled allocation interval in a current beacon period. By selecting which access scheme is in use, the node and hub can increase the node'"'"'s chances to be in hibernation or sleep state and minimize power consumption.
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Citations
20 Claims
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1. A method of macroscopic power management by a body area network (BAN) node, comprising:
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transmitting a connection request frame to a network hub, the connection request frame including; a first requested wakeup field specifying a unit of beacon periods; and a second requested wakeup field specifying an intended next wakeup beacon period; receiving a connection assignment frame from the network hub, the connection assignment frame including a first assigned wakeup field associated with a periodic allocation and a second assigned wakeup field associated with an assigned next wakeup beacon period; entering an inactive state; and waking up based on the first assigned wakeup field and the second assigned wakeup field. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A body area network (BAN) device, comprising:
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a memory storing a set of instructions for performing macroscopic power management; a processor coupled to the memory, and upon implementing the set of instructions, the processor configured to cause the BAN device to; transmit a connection request frame to a network hub, the connection request frame including; a first requested wakeup field specifying a unit of beacon periods; and a second requested wakeup field specifying an intended next wakeup beacon period; receive a connection assignment frame from the network hub, the connection assignment frame including a first assigned wakeup field associated with a periodic allocation and a second assigned wakeup field associated with an assigned next wakeup beacon period; enter an inactive state; and wake up based on the first assigned wakeup field and the second assigned wakeup field. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A tangible nontransitory storage medium storing a set of instructions, which upon being implemented by a processor, causes the processor to perform a macroscopic power management scheme, comprising:
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transmitting, by a body area network (BAN) node, a connection request frame to a network hub, the connection request frame including; a first requested wakeup field specifying a unit of beacon periods; and a second requested wakeup field specifying an intended next wakeup beacon period; receiving, by the BAN node, a connection assignment frame from the network hub, the connection assignment frame including a first assigned wakeup field associated with a periodic allocation and a second assigned wakeup field associated with an assigned next wakeup beacon period; entering, by the BAN node, an inactive state; and waking up, by the BAN node, based on the first assigned wakeup field and the second assigned wakeup field. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification