Patent ID: 9001812
Filing Date: 2015-04-07
Classification: H04L,H04W

Abstract:
1. The method, comprising: demodulating a group of pilots, received in uplink in a network element from a user equipment served by the network element, to provide a group of demodulated pilots, each pilot corresponding to one frequency subcarrier of a plurality of frequency subcarriers; and sliding in the network element an averaging window through the demodulated pilots of the group of the demodulated pilots to determine, using predetermined rules a modified group of demodulated pilots having a removed interference component caused by other user equipments, the averaging window having a length comprising multiple pilots; and calculating in the network element timing offsets in the demodulated group of pilots using phase differences for pairs of the demodulated pilots comprised in the modified group of demodulated pilots, the demodulated pilots in the pairs being separated by one or more frequency subcarriers of the plurality of frequency subcarriers.