Method and Network for Transmitting Data in a Wireless Network with Fixed Transmission Intervals
First Claim
1. A method for communicating data in a wireless network, including a master node (master) and a set of slave nodes (slaves), comprising:
- broadcasting periodically beacons by the master, wherein the beacons specify a structure of a following fixed length superframe;
determining a channel condition between each slave and the master;
partitioning the set of slaves into a plurality of subsets of slaves according to the channel conditions;
assigning, by the master, to each slave, a transmission rate in a low to high order according to the channel conditions; and
transmitting, during the superframe, the data from each subset of slaves to the master in the low to high order between two consecutive beacons, wherein the subsets of slaves with a higher transmission rate also receive the data from the subsets of slaves with a lower transmission rate, and wherein a slave with a higher transmission rate includes a part of or all the data from a slave with a lower transmission rate.
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Abstract
A wireless network master node periodically broadcasts beacons that specify a structure of a following fixed length superframe. Slave nodes determine a channel condition between each slave and the master. Then, the set of slaves is partitioned into subsets of slaves according to the channel conditions. The master assigns, to each slave, a transmission rate in a low to high order according to the channel conditions, and the slaves transmit data to the master in the low to high order between two consecutive beacons, wherein the subsets of slaves with a higher transmission rate also receive the data from the subsets of slaves with a lower transmission rate, and wherein a slave with a higher transmission rate includes a part of or all the data from a slave with a lower transmission rate.
21 Citations
14 Claims
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1. A method for communicating data in a wireless network, including a master node (master) and a set of slave nodes (slaves), comprising:
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broadcasting periodically beacons by the master, wherein the beacons specify a structure of a following fixed length superframe; determining a channel condition between each slave and the master; partitioning the set of slaves into a plurality of subsets of slaves according to the channel conditions; assigning, by the master, to each slave, a transmission rate in a low to high order according to the channel conditions; and transmitting, during the superframe, the data from each subset of slaves to the master in the low to high order between two consecutive beacons, wherein the subsets of slaves with a higher transmission rate also receive the data from the subsets of slaves with a lower transmission rate, and wherein a slave with a higher transmission rate includes a part of or all the data from a slave with a lower transmission rate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification