Patents by Inventor Nidham Ben Rached
Nidham Ben Rached 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: 11258164Abstract: An apparatus and method is disclosed in relation to antenna arrays. The method may include transmitting a reference signal to one or more remote user terminals from each of a plurality of sub-arrays of an antenna array, each sub-array including a quantity of radiating elements of the antenna array capable of establishing a backhaul link with a remote communications node. The method may also include receiving measurement signals from the one or more remote user terminals, indicative of one or more characteristics of the received reference signals. The method may also include selecting, based on received measurement signals, a first subset of the sub-arrays for backhaul communications with the remote communications node and a second subset of the sub-arrays, including one or more of the remaining sub-arrays, for access communications with the one or more remote user terminals.Type: GrantFiled: June 19, 2019Date of Patent: February 22, 2022Inventors: Nidham Ben Rached, Veronique Capdevielle, Patrick Albert Krief, Afef Feki
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Publication number: 20220007218Abstract: Apparatuses, methods and computer programs are described comprising: receiving user equipment downlink power measurements from a one or more base stations of a communication system, wherein the or each base station provides a plurality of user equipment downlink power measurements for user equipment in communication with said base station; determining inter-beam interference for measurements multiple directive beams of the or each base station based on the user equipment download power measurements; and assigning one or more beams to one or more clusters such that, for all beams within a cluster, inter-beam interference is below a threshold, wherein beams within a cluster share time and/or frequency resources.Type: ApplicationFiled: October 30, 2018Publication date: January 6, 2022Inventors: Nidham BEN RACHED, Veronique CAPDEVIELLE, Philippe PICQUET, Afef FEKI
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Patent number: 11012133Abstract: In some embodiments, a computing system maintains, in a memory, information on one or more terminal devices, a dictionary of beams and information on a spatial grid. The computing system maps each terminal device to the spatial grid based on up-to-date results of radio measurements and calculates, for each spatial element, a load caused by the one or more terminal devices based on the mapping. The computing system evaluates, for each combination of a beam and a terminal device, a reference signal received power, RSRP, based on results of the radio measurements. The computing system calculates a first map of expected spatial distribution of traffic based on the calculated loads and beam-specific second maps of expected RSRP based on the values of the RSRP. Finally, the computing system causes performing beamforming optimization based on the first map and second maps.Type: GrantFiled: September 11, 2020Date of Patent: May 18, 2021Assignee: NOKIA SOLUTIONS AND NETWORKS OYInventors: Veronique Capdevielle, Afef Feki, Deepak Kumar Nayak, Claudiu Mihailescu, Nidham Ben Rached, Suresh Kalyanasundaram
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Publication number: 20210083737Abstract: In some embodiments, a computing system maintains, in a memory, information on one or more terminal devices, a dictionary of beams and information on a spatial grid. The computing system maps each terminal device to the spatial grid based on up-to-date results of radio measurements and calculates, for each spatial element, a load caused by the one or more terminal devices based on the mapping. The computing system evaluates, for each combination of a beam and a terminal device, a reference signal received power, RSRP, based on results of the radio measurements. The computing system calculates a first map of expected spatial distribution of traffic based on the calculated loads and beam-specific second maps of expected RSRP based on the values of the RSRP. Finally, the computing system causes performing beamforming optimization based on the first map and second maps.Type: ApplicationFiled: September 11, 2020Publication date: March 18, 2021Inventors: Veronique CAPDEVIELLE, Afef FEKI, Deepak Kumar NAYAK, Claudiu MIHAILESCU, Nidham BEN RACHED, Suresh KALYANASUNDARAM
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Patent number: 10901076Abstract: A method for estimating the speed of a user equipment connected to a base station of a wireless network, the method comprising the following steps: measuring the power of a signal transmitted between the user equipment and the base station; computing the derivative of the measured signal power with respect to time; computing the standard deviation of the computed derivative; estimating, from previously established reference data, the speed of the user equipment that corresponds to the computed standard deviation, the reference data associating a given user equipment speed with a certain computed standard deviation.Type: GrantFiled: July 11, 2014Date of Patent: January 26, 2021Assignee: Alcatel Lucent; INRIAInventors: Nidham Ben Rached, Veronique Capdevielle, Majed Haddad, Frédéric Ratovelomanana, Afef Feki, Eitan Altman
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Publication number: 20200044310Abstract: An apparatus and method is disclosed in relation to antenna arrays. The method may include transmitting a reference signal to one or more remote user terminals from each of a plurality of sub-arrays of an antenna array, each sub-array including a quantity of radiating elements of the antenna array capable of establishing a backhaul link with a remote communications node. The method may also comprise include receiving measurement signals from the one or more remote user terminals, indicative of one or more characteristics of the received reference signals. The method may also include selecting, based on received measurement signals, a first subset of the sub-arrays for backhaul communications with the remote communications node and a second subset of the sub-arrays, including one or more of the remaining sub-arrays, for access communications with the one or more remote user terminals.Type: ApplicationFiled: June 19, 2019Publication date: February 6, 2020Inventors: Nidham BEN RACHED, Veronique CAPDEVIELLE, Patrick Albert KRIEF, Afef FEKI
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Patent number: 10153791Abstract: A method, in a telecommunications system, for transmitting radio signals from a base station comprising at least a pair of transmission branches configured to supply output signals for respective antennae of the base station, to at least one terminal comprising at least one antenna, the method comprising splitting a signal for transmission into at least first and second components, applying a phase shift to the first component to generate a modified first component and providing the modified first component and the second component to respective power amplifiers for transmission over the antennae.Type: GrantFiled: June 30, 2017Date of Patent: December 11, 2018Assignee: Alcatel LucentInventors: Nidham Ben Rached, Patrick Krief
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Publication number: 20180006671Abstract: A method, in a telecommunications system, for transmitting radio signals from a base station comprising at least a pair of transmission branches configured to supply output signals for respective antennae of the base station, to at least one terminal comprising at least one antenna, the method comprising splitting a signal for transmission into at least first and second components, applying a phase shift to the first component to generate a modified first component and providing the modified first component and the second component to respective power amplifiers for transmission over the antennae.Type: ApplicationFiled: June 30, 2017Publication date: January 4, 2018Applicant: Alcatel LucentInventors: Nidham Ben Rached, Patrick-Albert Krief
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Publication number: 20160146930Abstract: A method for estimating the speed of a user equipment connected to a base station of a wireless network, the method comprising the following steps: measuring the power of a signal transmitted between the user equipment and the base station; computing the derivative of the measured signal power with respect to time; computing the standard deviation of the computed derivative; estimating, from previously established reference data, the speed of the user equipment that corresponds to the computed standard deviation, the reference data associating a given user equipment speed with a certain computed standard deviation.Type: ApplicationFiled: July 11, 2014Publication date: May 26, 2016Applicants: Alcatel Lucent, INRIAInventors: Nidham Ben Rached, Veronique Capdevielle, Majed Haddad, Frédéric Ratovelomanana, Afef Feki, Eitan Altman
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Publication number: 20150270883Abstract: The invention relates to transmission from a base station to a receiver, the base station comprising first radiating means arranged for transmitting according to an antenna pattern with respect to the receiver and further comprising second radiating means arranged for transmitting according to the same antenna pattern as the first radiating means with respect to the receiver, the transmissions of the first and second radiating means being time shifted by a determined duration.Type: ApplicationFiled: June 1, 2015Publication date: September 24, 2015Inventors: Nidham Ben Rached, Thierry Lucidarme, Arnaud de Lannoy
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Patent number: 9065520Abstract: The invention relates to transmission from a base station to a receiver, the base station comprising first radiating means arranged for transmitting according to an antenna pattern with respect to the receiver and further comprising second radiating means arranged for transmitting according to the same antenna pattern as the first radiating means with respect to the receiver, the transmissions of the first and second radiating means being time shifted by a determined duration.Type: GrantFiled: April 25, 2014Date of Patent: June 23, 2015Assignee: Apple Inc.Inventors: Nidham Ben Rached, Thierry Lucidarme, Arnaud de Lannoy
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Patent number: 8982683Abstract: A method for transmitting a signal carrying information elements over a plurality of frequency subcarriers simultaneously. The method comprises: identifying a set of at least one frequency subcarrier of the plurality particularly subjected to attenuation; and transmitting the signal simultaneously over said plurality of frequency subcarriers by assigning respective information elements to the frequency subcarriers of the plurality not belonging to said set and assigning to each frequency subcarrier of said set a respective coefficient set so that an envelope of the transmitted signal is less than an envelope of the signal that would be transmitted by assigning respective information elements to all the frequency subcarriers of the plurality.Type: GrantFiled: November 7, 2006Date of Patent: March 17, 2015Assignee: Apple Inc.Inventors: Nidham Ben Rached, Thierry Lucidarme
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Patent number: 8848814Abstract: The invention relates to a method of estimating symbols carried by a digital signal that is received by a receiver over a communication channel (5), said symbols being multiplexed on orthogonal frequency sub-carriers. The inventive method comprises the following steps in relation to each symbol carried by the digital signal, consisting in: performing at least two transforms towards the frequency domain (8,9) on a portion of the received signal essentially corresponding to the symbol, said transforms being performed with a determined time lag (10) therebetween; estimating the parameters (r0, r1, . . . , rn, r?0, r?1, . . . , r?n) of the communication channel from pre-determined binary information contained in the digital signal; and estimating the symbol from a combination of the result of each of the transforms performed and the estimated communication channel parameters.Type: GrantFiled: March 25, 2013Date of Patent: September 30, 2014Assignee: Apple Inc.Inventors: Thierry Lucidarme, Nidham Ben Rached
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Publication number: 20140233543Abstract: The invention relates to transmission from a base station to a receiver, the base station comprising first radiating means arranged for transmitting according to an antenna pattern with respect to the receiver and further comprising second radiating means arranged for transmitting according to the same antenna pattern as the first radiating means with respect to the receiver, the transmissions of the first and second radiating means being time shifted by a determined duration.Type: ApplicationFiled: April 25, 2014Publication date: August 21, 2014Applicant: APPLE INC.Inventors: Nidham Ben Rached, Thierry Lucidarme, Arnaud de Lannoy
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Patent number: 8718713Abstract: The invention relates to transmission from a base station to a receiver, the base station comprising first radiating means arranged for transmitting according to an antenna pattern with respect to the receiver and further comprising second radiating means arranged for transmitting according to the same antenna pattern as the first radiating means with respect to the receiver, the transmissions of the first and second radiating means being time shifted by a determined duration.Type: GrantFiled: September 27, 2012Date of Patent: May 6, 2014Assignee: Apple Inc.Inventors: Nidham Ben Rached, Thierry Lucidarme, Arnaud de Lannoy
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Patent number: 8467800Abstract: Parameters for the propagation channels between each mobile terminal (14, 14A, 14B) and several fixed transceivers (13) are measured and a report message transmitted to a radio network controller (12), indicating at least one part of the measured parameters. The radio network controller processes the report messages. The parameters measured for each fixed transceiver are a propagation profile, including at least one propagation path associated with a reception energy and the parameters given in the report messages for at least one transceiver, comprise data on the energetic distribution in the propagation profile, taken into account by the radio network controller in processing.Type: GrantFiled: April 13, 2011Date of Patent: June 18, 2013Assignee: Apple Inc.Inventors: Thierry Lucidarme, Nidham Ben Rached, Pierre Roux
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Patent number: 8428167Abstract: The invention relates to a method of estimating symbols carried by a digital signal that is received by a receiver over a communication channel (5), said symbols being multiplexed or orthogonal frequency sub-carriers. The inventive method comprises the following steps in relation to each symbol carried by the digital signal, consisting in: performing at least two transforms towards the frequency domain (8,9) on a portion of the received signal essentially corresponding to the symbol, said transforms being performed with a determined time lag (10) therebetween: estimating the parameters (r0, r1, . . . , rn, r?0, r?1, . . . , r?n) of the communication channel from pre-determined binary information contained in the digital signal; and estimating the symbol from a combination of the result of each of the transforms performed and the estimated communication channel parameters.Type: GrantFiled: August 13, 2012Date of Patent: April 23, 2013Assignee: Apple, Inc.Inventors: Thierry Lucidarme, Nidham Ben Rached
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Publication number: 20120307946Abstract: The invention relates to a method of estimating symbols carried by a digital signal that is received by a receiver over a communication channel (5), said symbols being multiplexed or orthogonal frequency sub-carriers. The inventive method comprises the following steps in relation to each symbol carried by the digital signal, consisting in: performing at least two transforms towards the frequency domain (8,9) on a portion of the received signal essentially corresponding to the symbol, said transforms being performed with a determined time lag (10) therebetween: estimating the parameters (r0, r1, . . . , rn, r?0, r?1, . . . , r?n) of the communication channel from pre-determined binary information contained in the digital signal; and estimating the symbol from a combination of the result of each of the transforms performed and the estimated communication channel parameters.Type: ApplicationFiled: August 13, 2012Publication date: December 6, 2012Inventors: Thierry Lucidarme, Nidham Ben Rached
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Patent number: 8301198Abstract: The invention relates to transmission from a base station to a receiver, the base station comprising first radiating means arranged for transmitting according to an antenna pattern with respect to the receiver and further comprising second radiating means arranged for transmitting according to the same antenna pattern as the first radiating means with respect to the receiver, the transmissions of the first and second radiating means being time shifted by a determined duration.Type: GrantFiled: May 17, 2011Date of Patent: October 30, 2012Assignee: Apple Inc.Inventors: Nidham Ben Rached, Thierry Lucidarme, Arnaud de Lannoy
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Patent number: 8295376Abstract: The invention relates to a method of estimating symbols carried by a digital signal that is received by a receiver over a communication channel (5), said symbols being multiplexed or orthogonal frequency sub-carriers. The inventive method comprises the following steps in relation to each symbol carried by the digital signal, consisting in: performing at least two transforms towards the frequency domain (8,9) on a portion of the received signal essentially corresponding to the symbol, said transforms being performed with a determined time lag (10) therebetween: estimating the parameters (r0, r1, . . . , rn, r?0, r?1, . . . , r?n) of the communication channel from pre-determined binary information contained in the digital signal; and estimating the symbol from a combination of the result of each of the transforms performed and the estimated communication channel parameters.Type: GrantFiled: June 15, 2011Date of Patent: October 23, 2012Assignee: Apple Inc.Inventors: Thierry Lucidarme, Nidham Ben Rached