Patents by Inventor Afef Feki

Afef Feki 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).

  • Publication number: 20190393981
    Abstract: Embodiments relate to an apparatus for adjusting channel quality indicator measurements of a channel between a client device and a serving device within a wireless communication system. The apparatus includes a controller adapted to receive, from the client device, a first information and, when the client device is in a handover zone, a second information. The controller is further adapted to transmit according to a switching sequence either the first information alone or the first information together with the second information. The apparatus also includes an adjustment function entity adapted to receive the first information together with the second information and adapted to adjust the first information based on the second information by modifying it or keeping it unchanged. The first information is related to the CQI measurements, while the second information is related to a handover (HO).
    Type: Application
    Filed: September 6, 2019
    Publication date: December 26, 2019
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Afef FEKI, Sami MEKKI, Mustapha AMARA
  • Publication number: 20180278325
    Abstract: The disclosure relates to a network entity for selecting a communication relay from a plurality of communication relays within the service area of a base station covering a plurality of geographic positions, wherein each communication relay is able to retransmit a communication between the base station and a user equipment, wherein the network entity comprises a divider configured to divide the service area into a plurality of different regions based on an attenuation measure at each geographic position, a determiner configured to determine for each pair of regions a spatial isolation measure based on the attenuation measures at the geographic positions within the regions, and a selector configured to select a communication relay based on the spatial isolation measures associated with the geographic position of each communication relay.
    Type: Application
    Filed: May 22, 2018
    Publication date: September 27, 2018
    Inventors: Afef FEKI, Melissa Duarte GELVEZ, Stefan VALENTIN, Luca ROSE
  • Publication number: 20180138754
    Abstract: The present disclosure relates to a wireless communication device and method. The example wireless communication device is configured to communicate with an energy distributor, where the wireless communication device includes a rechargeable energy storage configured to supply the wireless communication device with energy to maintain operation of the wireless communication device. The device also includes a transmitter configured to transmit an energy status message to the energy distributor. The device further includes a receiver configured to extract energy from a wireless signal received by the wireless communication device from an energy provider, the wireless signal received in response to the energy status message transmitted to the energy distributor. The receiver can then recharge the rechargeable energy storage using the energy extracted from the wireless signal.
    Type: Application
    Filed: January 12, 2018
    Publication date: May 17, 2018
    Inventors: Afef FEKI, Kamel TOURKI, Moez DRAIEF, Beatrice TOMASI
  • Patent number: 9673922
    Abstract: 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: —performing signal strength measurements (S) of a radio signal transmitted between the user equipment and the base station; —performing a spectral analysis (11) of the signal strength measurements; —determining the frequency of a local maximum in the power spectrum of the signal strength measurements; —estimating (12), from previously established reference data, the speed of the user equipment that corresponds to the determined frequency, the reference data associating a given user equipment speed with a certain determined frequency.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: June 6, 2017
    Assignees: Alcatel Lucent, INRIA
    Inventors: Majed Haddad, Veronique Capdevielle, Afef Feki, Eitan Altman
  • Patent number: 9572071
    Abstract: The present invention relates to a method for adjusting handover parameters (TTT; OFF) used for handover detection within a given serving cell (CS). In accordance with an embodiment of the invention, the method comprises, for respective ones of a plurality of mobile stations (UE1 . . . UEN) served by the serving cell, gathering measurement samples (M(i,CS,k); M(i,CN,k)) of the serving cell and of a respective neighboring cell (CN) carried out by a respective mobile station (UEi) at successive time instances (k), and determining delta values (?(i,CN,k)) indicative of the time-indexed difference between respective ones of the measurement samples of the serving cell and corresponding ones of the measurement samples of the neighboring cell. The method further comprises determining near-optimal values (TTTNO; OFFNO) for the handover parameters by statistical characterization of the ensembles of delta values for the plurality of mobile stations.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: February 14, 2017
    Assignee: Alcatel Lucent
    Inventors: Veronique Capdevielle, Afef Feki
  • Publication number: 20160146930
    Abstract: 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: Application
    Filed: July 11, 2014
    Publication date: May 26, 2016
    Applicants: Alcatel Lucent, INRIA
    Inventors: Nidham Ben Rached, Veronique Capdevielle, Majed Haddad, Frédéric Ratovelomanana, Afef Feki, Eitan Altman
  • Publication number: 20160080095
    Abstract: 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: —performing signal strength measurements (S) of a radio signal transmitted between the user equipment and the base station; —performing a spectral analysis (11) of the signal strength measurements; —determining the frequency of a local maximum in the power spectrum of the signal strength measurements; —estimating (12), from previously established reference data, the speed of the user equipment that corresponds to the determined frequency, the reference data associating a given user equipment speed with a certain determined frequency.
    Type: Application
    Filed: March 14, 2014
    Publication date: March 17, 2016
    Applicants: INRIA, ALCATEL LUCENT
    Inventors: Majed HADDAD, Veronique CAPDEVIELLE, Afef FEKI, Eitan ALTMAN
  • Patent number: 9226325
    Abstract: A method for attaching a user terminal to a base station of a network is disclosed, said network comprising base stations. The method including defining a global cost function which is a weighted sum of the user terminal transmission delays, over all the user terminals in the network, using a user terminal's context weighting factor representing a user terminal's characteristic; defining a local cost function for each user terminal from said global cost function, said local cost function taking into account said user terminal's context weighting factor for each user terminal, and being a function of the base station to which this user terminal is associated; running a Gibbs sampler with said local cost function for producing user-base station association probabilities; choosing the user-base station association probability which favors low local cost; and attaching said user terminal to a base station according to the user-base station association probability chosen.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: December 29, 2015
    Assignee: Alcatel Lucent
    Inventors: Afef Feki, Chung Shue Chen, Francois Baccelli, Laurent Thomas
  • Publication number: 20150289169
    Abstract: The present invention relates to a method for adjusting handover parameters (TTT; OFF) used for handover detection within a given serving cell (CS). In accordance with an embodiment of the invention, the method comprises, for respective ones of a plurality of mobile stations (UE1 . . . UEN) served by the serving cell, gathering measurement samples (M(i,CS,k); M(i,CN,k)) of the serving cell and of a respective neighboring cell (CN) carried out by a respective mobile station (UEi) at successive time instances (k), and determining delta values (?(i,CN,k)) indicative of the time-indexed difference between respective ones of the measurement samples of the serving cell and corresponding ones of the measurement samples of the neighboring cell. The method further comprises determining near-optimal values (TTTNO; OFFNO) for the handover parameters by statistical characterization of the ensembles of delta values for the plurality of mobile stations.
    Type: Application
    Filed: October 15, 2013
    Publication date: October 8, 2015
    Applicant: Alcatel Lucent
    Inventors: Veronique Capdevielle, Afef Feki
  • Patent number: 8862144
    Abstract: The invention relates to a method for managing cells (100i, 100j) of a telecommunication network (102), said cells (100i, 100j) being supported by radio base stations (104i, 104j) aimed to provide wireless communication support to mobile terminals ((106i) connected to said communication network (102), each radio base station (104i, 104j) being linked to a core (108) of the telecommunication network through an associated backhaul (105i, 104j), characterized in that it comprises the step of managing dynamically communications resources of the telecommunication base stations by considering a dynamical backhaul quality BQ parameter for each base station (104i, 104j) and comparing different backhaul quality BQ parameters of different base stations (104i, 104j) in order to optimize the communication resources operations of the telecommunication network (102).
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: October 14, 2014
    Assignee: Alcatel Lucent
    Inventors: Bessem Sayadi, Afef Feki
  • Publication number: 20140135003
    Abstract: The present invention relates to a method for attaching a user terminal to a base station of a network, said network comprising a plurality of base stations, said method comprising: —defining a global cost function which is a weighted sum of the user terminal transmission delays, over all the user terminals in the network, using a user terminal's context weighting factor representing a user terminal's characteristic; —defining a local cost function for each user terminal from said global cost function, said local cost function taking into account said user terminal's context weighting factor for each user terminal, and being a function of the base station to which this user terminal is associated; —running a Gibbs sampler with said local cost function for producing user-base station association probabilities; —choosing the user-base station association probability which favors low local cost; and—attaching said user terminal to a base station according to the user-base station association probability chosen.
    Type: Application
    Filed: April 5, 2012
    Publication date: May 15, 2014
    Applicants: INRIA, ALCATEL LUCENT
    Inventors: Afef Feki, Chung Shue Chen, Francois Baccelli, Laurent Thomas
  • Publication number: 20130095844
    Abstract: The invention relates to a method for managing cells (100i, 100j) of a telecommunication network (102), said cells (100i, 100j) being supported by radio base stations (104i, 104j) aimed to provide wireless communication support to mobile terminals ((106i) connected to said communication network (102), each radio base station (104i, 104j) being linked to a core (108) of the telecommunication network through an associated backhaul (105i, 104j), characterized in that it comprises the step of managing dynamically communications resources of the telecommunication base stations by considering a dynamical backhaul quality BQ parameter for each base station (104i, 104j) and comparing different backhaul quality BQ parameters of different base stations (104i, 104j) in order to optimize the communication resources operations of the telecommunication network (102).
    Type: Application
    Filed: May 9, 2011
    Publication date: April 18, 2013
    Applicant: ALCATEL LUCENT
    Inventors: Bessem Sayadi, Afef Feki