Patent ID: 7885673

Claim:
A transmission method in a wireless telecommunication system including at least a base station intended to communicate with terminals over bidirectional communication channels, each channel supporting frames being divided into downlink sub frames and uplink sub frames, each downlink sub frame including a number of symbols intended to be transmitted to at least two terminals, the method comprising: determining, at the base station, the time delay of each terminal connected thereto, said time delay being such that any terminal after having received all the symbols included in a downlink sub frame followed by an uplink sub frame may transmit other symbols over said uplink sub frame with said time delay so that the other symbols susceptible to be transmitted should be received by said base station at a time separated from the end of the transmission by the base station of the downlink sub frame by a predefined guard period constant whatever said distance; enabling, at the base station, the transfer of at least one supplementary symbol between the base station and at least one terminal that can receive or transmit said at least one supplementary symbol during the time delay; forming a first group of terminals and at least another group of at least one terminal, the first group of terminals comprising at least terminals which can not receive and/or transmit said at least supplementary symbol during the time delay, the other group of at least one terminal comprising at least a terminal which can receive and/or transmit said at least supplementary symbol during the time delay; allocating multiplexing resources of the wireless telecommunication network to at least a part of the terminals comprised in the first group for a sub frame; allocating all the multiplexing resources allocated to the terminals comprised in the first group to one terminal comprised in the other group for at least one supplementary symbol; and transferring at least one control information which convey information indicating the allocated multiplexing resources to the terminals.