Patent ID: 8130640
Filing Date: 2012-03-06
Classification: H04B,H04L,H04W,Y02D

Abstract:
1. A method of dynamically allocating bandwidth to a plurality of remote units in a communication system where a base station (BS) transmits downlink (DL) data to the remote units and receives uplink (UL) data from the remote units, comprising: a) establishing n DL modulation schemes to be used for modulating said DL data, each said modulation scheme being characterized by a bit per symbol rate Bi, wherein n is an integer; b) transmitting the DL data to the remote units in a DL frame comprising n data blocks, each data block using a selected one of the DL modulation schemes wherein at least two of the data blocks are transmitted using different ones of the n DL modulation schemes; and c) dynamically adapting the modulation schemes of the data blocks based on a plurality of DL traffic parameters; wherein a number L of DL data bits that are parsed into a data block of the DL frame is adjusted such that a ratio Z between the number of symbols in the DL frame and the number S of symbols in the data block is an integer.