Patent ID: 8848589

Claim:
A method for transmitting broadcast service data in a single frequency network comprising a Radio Network Controller and one or more base stations each with a cell comprising one or more sectors, wherein the method comprises: grouping the sectors in advance so that adjacent sectors in the same cell are grouped in different groups each of which corresponds to a different delay unit; transmitting, by the Radio Network Controller, broadcast service data and a first transmission time to the base stations; calculating, by the base station, a second transmission time for transmitting the broadcast service data in each sector of the base station from the first transmission time and the delay unit corresponding to the sector, wherein the second transmission time corresponding to the sector is a sum of the first transmission time and the delay unit corresponding to the sector, and transmitting the broadcast service data to the sector at the second transmission time corresponding to the sector, wherein the delay unit is set dependent upon whether a primary path along which the base station transmits the broadcast service data falls within a multi-path reception window of a user equipment; and wherein the delay unit is less than or equal to the size of the multi-path reception window of the user equipment from which a path delay required for transmitting the broadcast service data is subtracted.