Pending data announcements
First Claim
1. A method for providing information regarding pending data in an ad-hoc network, the ad-hoc network including at least a master node and a slave node, the method comprising the steps of:
- broadcasting a message, from the master node, indicating whether data is pending in the master node for any of the slave nodes of the master node;
returning to the master node'"'"'s network by the slave node, if the slave node is not currently active in the master node'"'"'s network, wherein the slave node returns to the master node'"'"'s network and the master node broadcasts the message once every predefined interval;
receiving the message by the slave node; and
controlling, by the slave node, the time in which the slave node participates in all of the networks in which the slave node is a member as a function of the message.
1 Assignment
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Accused Products
Abstract
In an ad-hoc network information about data pending in a master node is distributed to the slave nodes of the master node. The information about pending data can be distributed in a beacon message which is sent by a master node at the expiration of a beacon interval. Alternatively, the information can be distributed in every message transmitted by a master node. The information can be in the form of a list or a bit map. The information can be either an indication that data is pending in the master node, or the information can be more detailed. The more detailed information can include whether the data pending in the master node is in danger of being dropped by the master node, the size of the pending data or the urgency associated with the pending data. Yet an alternative is to use predefined time slots for each slave node of the master node to exchange information about pending data. The information sent from the master would concern data pending in the master for the particular slave. The information sent from the slave would concern data pending in the slave.
88 Citations
53 Claims
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1. A method for providing information regarding pending data in an ad-hoc network, the ad-hoc network including at least a master node and a slave node, the method comprising the steps of:
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broadcasting a message, from the master node, indicating whether data is pending in the master node for any of the slave nodes of the master node;
returning to the master node'"'"'s network by the slave node, if the slave node is not currently active in the master node'"'"'s network, wherein the slave node returns to the master node'"'"'s network and the master node broadcasts the message once every predefined interval;
receiving the message by the slave node; and
controlling, by the slave node, the time in which the slave node participates in all of the networks in which the slave node is a member as a function of the message. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for providing information regarding pending data in an ad-hoc network, the ad-hoc network including at least a master node and a slave node, the method comprising the steps of:
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sending a message, from the master node to the slave node, wherein the message includes, in addition to any data intended for the slave node, an indication of whether data is pending in the master node for any of the slave nodes of the master node;
receiving the message by another slave node;
controlling, by the another slave node, the time in which the another slave node participates in all of the networks in which the another slave node is a member as a function of the message. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. A method for providing information regarding pending data in an ad-hoc network, the ad-hoc network including at least a master node and a slave node, the method comprising the steps of:
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sending a message from the master node to the slave node, wherein the message indicates that the master node will not poll the slave node for a predetermined time period; and
controlling, by the slave node, the time in which the slave node participates in all of the networks in which the slave node is a member as a function of the predetermined time period. - View Dependent Claims (23, 24, 25)
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26. An ad-hoc network comprising:
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a first subnetwork, the first subnetwork including a first master node;
a second subnetwork, the second subnetwork including a second master node;
a slave node, the slave node participates in the first and second subnetworks on a time-division basis;
wherein the first master node broadcasts a message indicating whether data is pending in the first master node for any of the slave nodes of the first master node, and wherein the slave node returns to the first subnetwork, if the slave node is not currently active in the first subnetwork, and the first master node broadcasts the message once every predefined interval. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. An ad-hoc network comprising:
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a first subnetwork, the first subnetwork including a first master node;
a second subnetwork, the second subnetwork including a second master node;
a slave node, the slave node participates in the first and second subnetworks on a time-division basis;
wherein in every message sent by the first master node the message includes, in addition to any data intended for the slave node to which the message is addressed, an indication of whether data is pending in the first master node for any of the slave nodes of the first master node. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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48. A method for providing information regarding pending data in an ad-hoc network, the ad-hoc network including at least a master node and a slave node, the method comprising the steps of:
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sending a message, from the master node to the slave node, indicating whether data is pending in the master node for the slave node;
returning to the master node'"'"'s network by the slave node, if the slave node is not currently active in the master node'"'"'s network, wherein the slave node returns to the master node'"'"'s network and the master node sends the message once every predefined interval, wherein the predefined interval is unique for each slave of the master node'"'"'s network;
receiving the message by the slave node; and
controlling, by the slave node, the time in which the slave node participates in all of the networks in which the slave node is a member as a function of the message. - View Dependent Claims (49, 50, 51, 52, 53)
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Specification