SYNCHRONISATION TIME DIFFERENCE MEASUREMENTS IN OFDM SYSTEMS Russian patent published in 2012 - IPC H04W92/10 H04W12/06 

FIELD: information technology.

SUBSTANCE: disclosed methods and devices are meant for determining a received time difference between a first orthogonal frequency-division multiplexing (OFDM) signal received from a first base station and a second OFDM signal received from a second base station. The methods and apparatus disclosed herein may be applied to 3GPP LTE systems as well as other OFDM-based wireless communication systems. The disclosed method involves determining a decoding synchronisation time for each of the first and second OFDM signals and calculating a time difference between the respective decoding synchronisation times. The calculated time difference is transmitted by the mobile terminal to the first base station, the second base station, or both. Methods and apparatus for processing, at a base station, time difference information calculated according to the disclosed methods and transmitted to the base station by a mobile terminal are also presented.

EFFECT: high synchronisation accuracy.

21 cl, 7 dwg