Mitsubishi Electric Corporation

Mitsubishi Electric R&d Centre Europe B.v.

Julien Guillet

Nicolas Gresset

Loic Brunel

Cristina Ciochina

Arnaud Bouttier

Jean-Christophe Sibel

Loïc Brunel

The invention relates to a method for transmitting at least K reference signals in a radio signal to be transmitted over a wireless communication system, said radio signal being intended to be emitted by an emitter comprising at least a transmit antenna configured for emitting on a number M of subcarriers S, . . . , Samongst which at least a number K of different subcarriers S, S, . . . , Sare contiguous, the respective frequencies of the contiguous subcarriers S, S, . . . , Sbeing ordered, said radio signal being provided by: inserting the at least K reference signals P, . . . , Pso that the at least K reference signals P, . . . , Pare respectively transmitted on the K contiguous subcarriers S, S, . . . , S; emitting the radio signal including the at least K reference signals.

Circular pilot sequences for joint channel and phase noise estimation

A method and apparatus for adjusting the transmission power of signals transferred by at least one home base station through a wireless interface to a mobile device, the at least one home base station being located in the cell of a base station. The transmission power is adjusted by first performing an inter cell interference coordination procedure including determining at least one high interference reference zone for the at least one home base station. Then the signal transmission power adjustment for the at least one home base station is determined to ensure a given outage probability that a given function g representing the mobile terminal performance degradation is lower than or equal to a threshold value in the high interference reference zone around the at least one home base station.

Method for adjusting the transmission power of the signals transferred by at least one home base station

A method for adjusting transmission power, in a wireless cellular telecommunication network, of signals transferred by plural mobile terminals through a wireless interface, the mobile terminals being served by at least one base station or by home base stations, the home base stations being located in the cell of the at least one base station. The method includes: obtaining at least the path gains between the mobile terminals and the at least one base station and at least one home base station; determining statistics from the obtained path gains; obtaining at least one coefficient of a function according to at least a part of the statistics; transferring an information representative of the at least one obtained coefficient to the mobile terminals.

Method and a device for adjusting the transmission power of signals transferred by plural mobile terminals

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Rennes, France

Julien Guillet