Patent ID: 8305872

Claim:
A method of enabling synchronization for a channel between two nodes in an Orthogonal Frequency Division Multiplexing (OFDM) based telecommunication system, comprising: providing a data symbol for transmission, wherein the data symbol is a predetermined pilot symbol; selecting at least two sub carrier frequencies; determining a respective weighting parameter for each of said selected at least two sub carrier frequencies, transmitting, during a symbol time, the symbol time being a duration of the data symbol, said provided data symbol on each of said at least two selected sub carrier frequencies based on said determined weighting parameter to enable synchronization of said channel, said channel is a Random Access Channel in the OFDM based telecommunication system; and initially selecting two sub carrier frequencies, and repeating the steps of selecting, determining, and transmitting for an increasing number of selected sub carrier frequencies until synchronization of the channel is achieved between the two nodes.