Patent ID: 8228883
Filing Date: 2012-07-24
Classification: H04B,H04W

Abstract:
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.