Patents by Inventor Wladimir Bocquet
Wladimir Bocquet has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9781619Abstract: A method for a user equipment to transmit a set of data to at least a first telecommunication network, said user equipment comprising a rechargeable power supply, said method comprising the acts of acquiring network related information from at least a second telecommunication network by the user equipment and initiating the transmission of a set of data to the at least first telecommunication network upon detection of the charging of the power supply, the set of data comprising said network related information.Type: GrantFiled: December 17, 2008Date of Patent: October 3, 2017Assignee: 3G Licensing S.A.Inventors: Patrice Coupe, Wladimir Bocquet, Romain Lenglet
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Patent number: 9316721Abstract: A method and system are provided for estimating the location of a mobile radio-communication terminal, the mobile terminal having a plurality of antennas, and being in communication range of at least one transmitter having a plurality of antennas, the method comprising; measuring the time of arrival of a signal transmitted from the M antennas of the at least one transmitter at each of the N antennas of the mobile terminal to determine M×N range measurements corresponding to the M×N transmission paths of said signal between the M antennas of the transmitter and the N antennas of the mobile terminal; and estimating the location of the mobile terminal based on the M×N range measurements. The location of the mobile terminal may be estimated by applying a least squares method.Type: GrantFiled: September 24, 2009Date of Patent: April 19, 2016Assignee: OrangeInventors: Wladimir Bocquet, Shinya Tsutsumi, Tomofumi Yabu
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Patent number: 8290022Abstract: The present invention relates to a transmission method for a transmitter having Nt transmit antennas. The method (1) spreads symbols in two dimensions by means of a spreading code, the symbols coming from a signal for transmission over Nfft sub-carriers via the Nt transmit antennas. The signal is transmitted with a power pem(k) that is determined per symbol m, per user k=1, . . . , Nu, and per transmit antenna. The principle of the method (1) is to determine (2) a set of powers pem(k) that is constant over a symbol frame, with the distribution of power amongst the users minimizing an overall error criterion under the constraint that the sum of the powers pem(k) in the set is equal to the product of the number of users multiplied by the average power emitted per symbol over the users.Type: GrantFiled: September 6, 2007Date of Patent: October 16, 2012Assignee: France TelecomInventor: Wladimir Bocquet
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Patent number: 8050336Abstract: A frequency-domain-equalization apparatus for a receiver in single-carrier communication comprising: a selection means (103) for selecting a time-sequence-signal portion from a received signal that is longer than one block; a Fourier-transformation means (104) for performing Fourier transformation of the time-sequence-signal portion that is longer than one block and converting the signal to a frequency-domain signal; a channel-compensation means (105 to 106) for estimating the channels in the frequency domain and performing channel compensation, and a selection means (107, 108; 151) for performing inverse-Fourier transformation of the channel-compensated signal and selecting a one-block time-sequence-signal portion from the inverse Fourier-transformation results.Type: GrantFiled: December 22, 2006Date of Patent: November 1, 2011Assignee: Fujitsu LimitedInventor: Wladimir Bocquet
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Publication number: 20110177828Abstract: A method and system are provided for estimating the location of a mobile radio-communication terminal, the mobile terminal having a plurality of antennas, and being in communication range of at least one transmitter having a plurality of antennas, the method comprising; measuring the time of arrival of a signal transmitted from the M antennas of the at least one transmitter at each of the N antennas of the mobile terminal to determine M×N range measurements corresponding to the M×N transmission paths of said signal between the M antennas of the transmitter and the N antennas of the mobile terminal; and estimating the location of the mobile terminal based on the M×N range measurements. The location of the mobile terminal may be estimated by applying a least squares method.Type: ApplicationFiled: September 24, 2009Publication date: July 21, 2011Applicant: France TelecomInventors: Wladimir Bocquet, Shinya Tsutsumi, Tomofumi Yabu
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Publication number: 20100273507Abstract: A method for a user equipment to transmit a set of data to at least a first telecommunication network, said user equipment comprising a rechargeable power supply, said method comprising the acts of acquiring network related information from at least a second telecommunication network by the user equipment and initiating the transmission of a set of data to the at least first telecommunication network upon detection of the charging of the power supply, the set of data comprising said network related information.Type: ApplicationFiled: December 17, 2008Publication date: October 28, 2010Applicant: FRANCE TELECOMInventors: Patrice Coupe, Wladimir Bocquet, Romain Lenglet
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Publication number: 20100255806Abstract: An adaptive array antenna part receiving a plurality of transmitted signals in which subcarrier signal components of predetermined values is suppressed before transmission in order to distinguish a plurality of transmission antenna, by means of the plurality of transmission antennas; a part calculating weight factors suppressing the subcarrier signal components set in the predetermined, values, among sub-carrier components included in a received signal; and a part applying the weight factors to the adaptive array antenna means and receiving the plurality of transmitted signals with distinguishing the same are provided.Type: ApplicationFiled: June 21, 2010Publication date: October 7, 2010Applicant: FUJITSU LIMITEDInventors: Wladimir BOCQUET, Michiharu NAKAMURA
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Patent number: 7787824Abstract: An adaptive array antenna part receiving a plurality of transmitted signals in which sub-carrier signal components of predetermined values is suppressed before transmission in order to distinguish a plurality of transmission antenna, by means of the plurality of transmission antennas; a part calculating weight factors suppressing the sub-carrier signal components set in the predetermined values, among sub-carrier components included in a received signal; and a part applying the weight factors to the adaptive array antenna means and receiving the plurality of transmitted signals with distinguishing the same are provided.Type: GrantFiled: January 26, 2007Date of Patent: August 31, 2010Assignee: Fujitsu LimitedInventors: Wladimir Bocquet, Michiharu Nakamura
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Publication number: 20090245329Abstract: The present invention relates to a transmission method for a transmitter having Nt transmit antennas. The method (1) spreads symbols in two dimensions by means of a spreading code, the symbols coming from a signal for transmission over Nfft sub-carriers via the Nt transmit antennas. The signal is transmitted with a power pem(k) that is determined per symbol m, per user k=1, . . . , Nu, and per transmit antenna. The principle of the method (1) is to determine (2) a set of powers pem(k) that is constant over a symbol frame, with the distribution of power amongst the users minimizing an overall error criterion under the constraint that the sum of the powers pem(k) in the set is equal to the product of the number of users multiplied by the average power emitted per symbol over the users.Type: ApplicationFiled: September 6, 2007Publication date: October 1, 2009Applicant: France TelecomInventor: Wladimir Bocquet
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Publication number: 20090219800Abstract: A transmission method (1) for an N carrier transmitter (EM). The principle of the method is to select a set of carriers from the N carriers and distribute them amongst subgroups in application of a determined criterion and to determine a set of powers transmitted per subgroup that complies with an optimum frequency distribution of the total power transmitted by said set among the subcarriers of the set, by minimizing an overall error criterion (BER) under the constraint that the sum of the powers of a set is equal to the product of the number Ntg of carriers of the subgroup multiplied by the total mean power transmitted over the N carriers.Type: ApplicationFiled: February 23, 2007Publication date: September 3, 2009Inventor: Wladimir Bocquet
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Patent number: 7492830Abstract: Transmitted symbols are estimated from received signals. The likelihood of the estimated transmitted symbols is calculated. The mean value and variance of the transmitted symbols are calculated from information indicating the likelihood, and MMSE coefficient for compensating the channel is calculated according to the mean value and variance. The transmitted symbols are estimated again using the MMSE coefficient. The estimation process is repeatedly performed twice or more.Type: GrantFiled: April 14, 2005Date of Patent: February 17, 2009Assignee: Fujitsu LimitedInventor: Wladimir Bocquet
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Publication number: 20070188381Abstract: An adaptive array antenna part receiving a plurality of transmitted signals in which sub-carrier signal components of predetermined values is suppressed before transmission in order to distinguish a plurality of transmission antenna, by means of the plurality of transmission antennas; a part calculating weight factors suppressing the sub-carrier signal components set in the predetermined values, among sub-carrier components included in a received signal; and a part applying the weight factors to the adaptive array antenna means and receiving the plurality of transmitted signals with distinguishing the same are provided.Type: ApplicationFiled: January 26, 2007Publication date: August 16, 2007Inventors: Wladimir Bocquet, Michiharu Nakamura
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Publication number: 20070147529Abstract: A frequency-domain-equalization apparatus for a receiver in single-carrier communication comprising: a selection means (103) for selecting a time-sequence-signal portion from a received signal that is longer than one block; a Fourier-transformation means (104) for performing Fourier transformation of the time-sequence-signal portion that is longer than one block and converting the signal to a frequency-domain signal; a channel-compensation means (105 to 106) for estimating the channels in the frequency domain and performing channel compensation, and a selection means (107, 108; 151) for performing inverse-Fourier transformation of the channel-compensated signal and selecting a one-block time-sequence-signal portion from the inverse Fourier-transformation results.Type: ApplicationFiled: December 22, 2006Publication date: June 28, 2007Inventor: Wladimir Bocquet
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Publication number: 20070133393Abstract: In a multi-carrier communication method that receives and demodulates a signal to which a guard interval has been attached for every group of a plurality of multi-carrier transmission symbols, the present invention removes the guard intervals from the received signal, performs Fourier-transformation processing together for the plurality of multi-carrier transmission symbols, estimates channels for sub carriers that correspond to the plurality of multi-carrier transmission symbols, performs channel compensation on the Fourier-transformation results based on the channel-estimation results, performs inverse-Fourier-transformation processing together on the plurality of channel-compensated multi-carrier transmission symbols, performs Fourier-transformation processing on the inverse-Fourier-transformation results for every multi-carrier transmission symbol and demodulates the received signal.Type: ApplicationFiled: January 5, 2007Publication date: June 14, 2007Applicant: FUJITSU LIMITEDInventor: Wladimir Bocquet
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Publication number: 20060045200Abstract: Transmitted symbols are estimated from received signals. The likelihood of the estimated transmitted symbols is calculated. The mean value and variance of the transmitted symbols are calculated from information indicating the likelihood, and MMSE coefficient for compensating the channel is calculated according to the mean value and variance. The transmitted symbols are estimated again using the MMSE coefficient. The estimation process is repeatedly performed twice or more.Type: ApplicationFiled: April 14, 2005Publication date: March 2, 2006Inventor: Wladimir Bocquet
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Publication number: 20050232133Abstract: A multi-carrier receiver which dispenses with a guard interval and avoids an influence of an intersymbol interference (ISI) based on the height of the guard interval.Type: ApplicationFiled: April 1, 2005Publication date: October 20, 2005Inventors: Wladimir Bocquet, Yoshinori Tanaka