Patents by Inventor Loic Brunel

Loic Brunel 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).

  • Patent number: 8135411
    Abstract: A method for determining at least one terminal for which signals transferred between the at least one terminal and a base station of a wireless cellular telecommunication network have to be relayed by a relay, the base station allocating resources of the wireless cellular telecommunication network. The method includes, executed by a management entity: receiving from the base station, information indicating to which terminal or terminals at least a part of the resources are allocated; receiving from the relay, a list of indicators of resources, and determining the at least one terminal for which signals transferred between the at least one terminal and the base station have to be relayed by the relay according to the information indicating to which terminal or terminals at least a part of the resources are allocated and to the list of indicators of resources.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: March 13, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Loic Brunel, David Mottier, Damien Castelain, Nicolas Gresset, Herve Bonneville
  • Patent number: 8111665
    Abstract: A method for determining if a handover of a half-duplex terminal has to be executed from a first base station to a second base station, the half-duplex terminal not transferring and not receiving signals during a period of time, called an idle period. The first base station transfers to the half-duplex terminal a downlink signal in the cell of the first base station. The first base station receives a message in response to the downlink signal including information relative to quality measurements on the downlink signal transferred by the first and the second base stations. The first base station determines the round trip delay between the half-duplex terminal and the second base station. The first base station further transmits a handover notification message to the half-duplex terminal instructing the half-duplex terminal to execute a handover procedure from the first base station to the second base station.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: February 7, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Loic Brunel, Alain Mourad, David Mottier
  • Patent number: 8102816
    Abstract: The present invention concerns a method for determining in a wireless cellular telecommunication network in which a half duplex terminal is handled by a first base station, if a second base station is able to handle the half-duplex terminal, characterized in that the method comprises the steps, executed by the half duplex terminal, of: receiving signals from the first base station and from the second base station, determining quality measurements for the signals, determining the time period between the reception of the signal transferred by the first base station and the reception of the signal transferred by the second base station, determining if the second base station is able to handle the half-duplex terminal according to at least the quality measurements and the time period.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: January 24, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Loic Brunel, Alain Mourad, David Mottier
  • Publication number: 20120002629
    Abstract: A method for determining a shifting parameter P to be used by a telecommunication device for mapping symbols on sub-carriers, the telecommunication device including at least two transmit antennas, the symbols being transferred through each antenna of the telecommunication device on at least an even number K, strictly greater than two, of sub-carriers allocated to the telecommunication device. The telecommunication device transfers on a first antenna on each sub-carrier ‘k’, a signal representing a symbol ‘Xk’ in the frequency domain. The telecommunication device transfers on a second antenna on each sub-carrier ‘k’, a signal representing a symbol ‘X?k’ derived from the signal transferred on the first transmit antenna, for each frequency k, by the formula XKsecondAnt=?(?1)k+1X*(p-l-k)mod K.
    Type: Application
    Filed: March 12, 2010
    Publication date: January 5, 2012
    Applicant: Mitsubishi Electric Corporation
    Inventors: Damien Castelain, Cristina Ciochina, Loic Brunel, David Mottier
  • Patent number: 8090372
    Abstract: The present invention concerns a method for determining if a handover of a first half-duplex terminal has to be executed from a first to a second base station. The first base station: transfers signal in the cell of the first base station, receiving a message transferred by the first half-duplex terminal in response to the signal transferred by the first base station, the message comprising information relative to quality measurements on the signals transferred by the first and second base stations, receiving a message indicating if the idle period of the cell of the second base station is compatible with the round trip delay of the first half-duplex terminal in the cell of the second base station, determining if a handover of the first half-duplex terminal has to be executed according to the compatibility.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: January 3, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Loic Brunel, Alain Mourad, David Mottier
  • Patent number: 8085716
    Abstract: A method for determining, in a wireless cellular telecommunication network, if a base station can handle a half-duplex terminal. The base station transfers signals in a cell of the base station, and the half-duplex terminal, when being handled by the base station, does not transfer or receive signals during a period of time, called idle period of the cell of the base station. If a characteristic of the terminal is not compatible with the idle period of the cell of the base station, it is determined that the base station cannot handle the terminal.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: December 27, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Loic Brunel, Alain Mourad, David Mottier
  • Publication number: 20110310836
    Abstract: The present invention concerns a method, a device and a system for transferring signals representative of a pilot symbol pattern to a first telecommunication device by a second telecommunication device. The method is executed by the second telecommunication. It obtains information associated with data to be transferred to the first telecommunication device. The adjusted transmission power of the signals representative of the pilot symbol pattern is according the associated information. The signals representative of the pilot symbol pattern at the adjusted transmission power are subsequently transferred.
    Type: Application
    Filed: August 25, 2011
    Publication date: December 22, 2011
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yoshitaka HARA, David MOTTIER, Loic BRUNEL, Noriyuki FUKUI
  • Publication number: 20110306334
    Abstract: A method for identifying at least one terminal for which signals transferred between the at least one terminal and a base station of a wireless cellular telecommunication network have to be relayed by a relay, the base station providing a random access channel enabling any terminal to notify to the base station the presence of the terminal by transferring a random access signal to the base station. The relay: transfers the random access signal to the base station for obtaining a list of at least one terminal, receives the list, identifies, from the received list, at least one terminal for which signals transferred between the at least one identified terminal and the base station have to be relayed by the relay, and relays signals between the at least one identified terminal and the base station.
    Type: Application
    Filed: June 9, 2009
    Publication date: December 15, 2011
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Loic Brunel, Damien Castelain, Nicolas Gresset, Herve Bonneville
  • Patent number: 8068444
    Abstract: A method communicating downlink and uplink sub-frames between a base and at least one half duplex user equipment. For a scheduled synchronization time, beginning of reception of an effective part of the uplink sub-frame is separated from end of transmission of an effective part of the first downlink sub-frame by a duration of the difference between a single idle period and an incremental timing advance value. The single idle period, having a duration greater than or equal to summation of downlink/uplink and uplink/downlink required minimum idle durations, is reserved in the end of the first downlink sub-frame or the beginning of the uplink sub-frame, or both. The incremental timing advance value is greater than or equal to the uplink/downlink required minimum idle duration and lower than or equal to the difference between the duration of the single idle period and the downlink/uplink required minimum idle duration.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: November 29, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Loic Brunel, David Mottier
  • Patent number: 8040867
    Abstract: A method and device in the domain of wireless communication, and more specifically coding and decoding schemes useful in the context of MIMO (Multiple Input Multiple Output) or MISO (Multiple Input Single Output) communications especially used in conjunction of OFDM-like transmission schemes. A space frequency block code applies some well chosen two by two space frequency block codes to each pair of frequencies ? and ?+N/2. The proposed SFBC keep the constant envelope property for each antenna while leading to a good performance by introducing some spatial diversity.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: October 18, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Damien Castelain, Loic Brunel, David Mottier, Cristina Ciochina
  • Publication number: 20110250884
    Abstract: The present invention concerns a method for enabling a mobile terminal to access to a wireless cellular telecommunication network.
    Type: Application
    Filed: September 16, 2009
    Publication date: October 13, 2011
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Loic Brunel, Herve Bonneville, Nicolas Gresset, Mourad Khanfouci
  • Publication number: 20110189992
    Abstract: A method enabling a mobile terminal to access a wireless cellular telecommunication network including plural base stations and a core network device. The mobile terminal is allowed to access the wireless cellular telecommunication network through at least one first base station and memorizes a list including information enabling the identification of signals transferred by each first base station, the mobile terminal not memorizing information enabling the identification of signals transferred by second base stations. One second base station: receives a message requesting the second base station to transfer signals that should be transferred by one first base station, transfers signals that should be transferred by the first base station, and broadcasts information enabling the identification by the mobile terminal of other signals transferred by the second base station and/or at least one other second base station.
    Type: Application
    Filed: October 22, 2009
    Publication date: August 4, 2011
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Herve Bonneville, Loic Brunel, Nicolas Gresset, Mourad Khanfouci
  • Publication number: 20110170490
    Abstract: A method for enabling a mobile terminal to access to a wireless cellular telecommunication network including plural base stations, the mobile terminal having right to access to the wireless cellular telecommunication network through a first base station, the mobile terminal having no right to access to the wireless cellular telecommunication network through a second base station. The method includes: detecting reception of a message transferred by the mobile terminal to the second base station, determining if the first base station is operational, giving right to the mobile terminal to access to the wireless cellular telecommunication network through the second base station if the first base station is not operational, and rejecting right to the mobile terminal to access to the wireless cellular telecommunication network through the second base station if the first base station is operational.
    Type: Application
    Filed: September 16, 2009
    Publication date: July 14, 2011
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Herve Bonneville, Loic Brunel, Nicolas Gresset, Mourad Khanfouci
  • Publication number: 20110164575
    Abstract: The present invention concerns a method for allocating, by a telecommunication device, at least a channel element of a group of channel elements of a channel resource to a destination. Each channel element is a predefined subdivision of the channel resource. The telecommunication device: determines the number of channel elements to be allocated to the destination; selects at least one randomisation function according to the number of channel elements to be allocated to the destination; processes the data to be included in the or each channel element to be allocated to the destination by the at least one selected randomisation function; transfers the data processed by the at least one selected randomisation function by mapping the data processed by the at least one randomisation function on the at least one channel element.
    Type: Application
    Filed: June 16, 2008
    Publication date: July 7, 2011
    Inventors: Loic Brunel, Damien Castelain, Nicolas Gresset
  • Publication number: 20110165879
    Abstract: A method for determining at least one terminal for which signals transferred between the at least one terminal and a base station of a wireless cellular telecommunication network have to be relayed by a relay, the base station allocating resources of the wireless cellular telecommunication network. The method includes, executed by a management entity: receiving from the base station, information indicating to which terminal or terminals at least a part of the resources are allocated; receiving from the relay, a list of indicators of resources, and determining the at least one terminal for which signals transferred between the at least one terminal and the base station have to be relayed by the relay according to the information indicating to which terminal or terminals at least a part of the resources are allocated and to the list of indicators of resources.
    Type: Application
    Filed: June 9, 2009
    Publication date: July 7, 2011
    Inventor: Loic Brunel
  • Publication number: 20110151921
    Abstract: A method for deciding if a telecommunication device has to be switched in an operating mode which is different from the operating mode in which the telecommunication is operating. In an operating mode, the telecommunication device relays signals transferred between a terminal and an access node which handles the terminal. In another operating mode, the telecommunication device handles the terminal. The method includes: determining, from obtained information, if a predetermined event occurs, and if the predetermined event occurs, deciding that a handover of the terminal has to be conducted between the access node and the telecommunication device, and deciding that the telecommunication device has to switch in an operating mode which is different from the operating mode in which the telecommunication is operating.
    Type: Application
    Filed: June 9, 2009
    Publication date: June 23, 2011
    Applicant: MITSUBISH ELECTRIC COPRATION
    Inventors: Herve Bonneville, Loic Brunel, Damien Castelain, Nicolas Gresset, David Mottier
  • Publication number: 20110124365
    Abstract: The present invention concerns a method for controlling signals transferred by a wireless telecommunication device. A first and at least one second physical cell identifiers are allocated to the wireless telecommunication device, the first physical cell identifier being intended to identify the cell of the wireless telecommunication device and to characterise a code for scrambling data, the at least one second physical cell identifier being not intended to characterise a code. The method comprises the steps of: determining a power pattern for transferring the first physical cell identifier, determining another power pattern for transferring the at least one second physical cell identifier which is strictly lower than the first power pattern, transferring the physical cell identifiers and the power patterns to the wireless telecommunication device and/or transferring in parallel signals representative of the physical cell identifiers according to the power patterns to mobile terminals.
    Type: Application
    Filed: November 16, 2010
    Publication date: May 26, 2011
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Nicolas GRESSET, Herve Bonneville, Loic Brunel, Mourad Khanfouci
  • Patent number: 7936834
    Abstract: The present invention concerns a method and a device for transferring, by a first telecommunication device, data to a second telecommunication device through a telecommunication network using multiple carrier frequencies. The first telecommunication device maps the data on first carrier frequencies of plural consecutive groups of first carrier frequencies, where each group of first carrier frequencies is spaced from the next group of first carrier frequencies by a second carrier frequency and at least two second carrier frequencies are carrier frequencies which are susceptible to be the demodulation carrier frequency of the second telecommunication device. The first telecommunication device also transfers the mapped data to the second telecommunication device.
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: May 3, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Loic Brunel, David Mottier
  • Publication number: 20110039565
    Abstract: The present invention concerns a method for transferring in a wireless cellular telecommunication network, a sequence enabling the identification, by a mobile terminal, of the home base station, the symbols transferred between the home base station and the mobile terminal being separated by a guard period. The home base station: receives from at least one neighbouring home base station a sequence enabling the identification of the neighbouring base station, selects one received sequence, shifts the start of the transfer of a frame of symbols in the cell of the home base station from a start of the reception of a frame of symbols that may be transferred by the neighbouring home base station which may be identified with the selected received sequence by a time duration which is at least equal to the guard period, the frame of symbols comprising the selected sequence.
    Type: Application
    Filed: July 27, 2010
    Publication date: February 17, 2011
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Loic Brunel, Mourad Khanfouci
  • Patent number: 7885673
    Abstract: The present invention concerns 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, wherein 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 is enabled.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: February 8, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Loic Brunel, David Mottier