Patents by Inventor Evelyne Le Strat

Evelyne Le Strat 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: 10686512
    Abstract: Spatial multiplexing and transmit diversity can improve the capacity of a wireless communication system. The system and method adapts communication schemes for communication systems with multiple antennas utilizing at least two transmission modes. The at least two transmission modes can, but are not necessarily, used for uplink communications. The two transmission modes may be chosen from the group consisting of a single antenna mode, a diversity mode a spatial multiplexed mode and a mixed diversity and spatial multiplexed mode. The at least two transmission modes may involve adaptation among multiple transmitters. At least one receiver may indicate a transmission mode to be used by a transmitter for a subsequent transmission. A transmitter may determine a transmission mode to be used for a subsequent transmission. The transmission mode can be based on channel sounding.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: June 16, 2020
    Assignee: Apple Inc.
    Inventors: Jianglei Ma, Ming Jia, Jianming Wu, Peiying Zhu, Wen Tong, Evelyne Le Strat, Sarah Boumendil, Moussa Abdi
  • Publication number: 20190350012
    Abstract: Physical layer structures and access schemes for use in such networks are described and in particular initial access channel (IACH) structures are proposed. A spectrum efficient downlink (DL) IACH design supports different types of User Equipment (UE) capabilities and different system bandwidths. An IACH includes the synchronization channel (SCH) and broadcast-control channel (BCH). A non-uniform SCH for all system bandwidths is provided, as well as scalable bandwidth BCH depending on system bandwidth. An initial access procedure is provided, as well as an access procedure.
    Type: Application
    Filed: July 23, 2019
    Publication date: November 14, 2019
    Inventors: Jianglei Ma, Hua Xu, Ming Jia, Sarah Boumendil, Evelyne Le Strat, Hang Zhang, Peiying Zhu, Wen Tong
  • Patent number: 10397960
    Abstract: Physical layer structures and access schemes for use in such networks are described and in particular initial access channel (IACH) structures are proposed. A spectrum efficient downlink (DL) IACH design supports different types of User Equipment (UE) capabilities and different system bandwidths. An IACH includes the synchronization channel (SCH) and broadcast-control channel (BCH). A non-uniform SCH for all system bandwidths is provided, as well as scalable bandwidth BCH depending on system bandwidth. An initial access procedure is provided, as well as an access procedure.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: August 27, 2019
    Assignee: Apple Inc.
    Inventors: Jianglei Ma, Hua Xu, Ming Jia, Sarah Boumendil, Evelyne Le Strat, Hang Zhang, Peiying Zhu, Wen Tong
  • Publication number: 20180069615
    Abstract: Spatial multiplexing and transmit diversity can improve the capacity of a wireless communication system. The system and method adapts communication schemes for communication systems with multiple antennas utilizing at least two transmission modes. The at least two transmission modes can, but are not necessarily, used for uplink communications. The two transmission modes may be chosen from the group consisting of a single antenna mode, a diversity mode a spatial multiplexed mode and a mixed diversity and spatial multiplexed mode. The at least two transmission modes may involve adaptation among multiple transmitters. At least one receiver may indicate a transmission mode to be used by a transmitter for a subsequent transmission. A transmitter may determine a transmission mode to be used for a subsequent transmission. The transmission mode can be based on channel sounding.
    Type: Application
    Filed: October 27, 2017
    Publication date: March 8, 2018
    Inventors: Jianglei Ma, Ming Jia, Jianming Wu, Peiying Zhu, Wen Tong, Evelyne Le Strat, Sarah Boumendil, Moussa Abdi
  • Publication number: 20180020489
    Abstract: Physical layer structures and access schemes for use in such networks are described and in particular initial access channel (IACH) structures are proposed. A spectrum efficient downlink (DL) IACH design supports different types of User Equipment (UE) capabilities and different system bandwidths. An IACH includes the synchronization channel (SCH) and broadcast-control channel (BCH). A non-uniform SCH for all system bandwidths is provided, as well as scalable bandwidth BCH depending on system bandwidth. An initial access procedure is provided, as well as an access procedure.
    Type: Application
    Filed: July 31, 2017
    Publication date: January 18, 2018
    Inventors: Jianglei Ma, Hua Xu, Ming Jia, Sarah Boumendil, Evelyne Le Strat, Hang Zhang, Peiying Zhu, Wen Tong
  • Patent number: 9806785
    Abstract: Spatial multiplexing and transmit diversity can improve the capacity of a wireless communication system. The system and method adapts communication schemes for communication systems with multiple antennas utilizing at least two transmission modes. The at least two transmission modes can, but are not necessarily, used for uplink communications. The two transmission modes may be chosen from the group consisting of a single antenna mode, a diversity mode a spatial multiplexed mode and a mixed diversity and spatial multiplexed mode. The at least two transmission modes may involve adaptation among multiple transmitters. At least one receiver may indicate a transmission mode to be used by a transmitter for a subsequent transmission. A transmitter may determine a transmission mode to be used for a subsequent transmission. The transmission mode can be based on channel sounding.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: October 31, 2017
    Assignee: APPLE INC.
    Inventors: Jianglei Ma, Ming Jia, Jianming Wu, Peiying Zhu, Wen Tong, Evelyne Le Strat, Sarah Boumendil, Moussa Abdi
  • Patent number: 9723636
    Abstract: Physical layer structures and access schemes for use in such networks are described and in particular initial access channel (IACH) structures are proposed. A spectrum efficient downlink (DL) IACH design supports different types of User Equipment (UE) capabilities and different system bandwidths. An IACH includes the synchronization channel (SCH) and broadcast-control channel (BCH). A non-uniform SCH for all system bandwidths is provided, as well as scalable bandwidth BCH depending on system bandwidth. An initial access procedure is provided, as well as an access procedure.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: August 1, 2017
    Assignee: Apple Inc.
    Inventors: Jianglei Ma, Hua Xu, Ming Jia, Sarah Boumendil, Evelyne Le Strat, Hang Zhang, Peiying Zhu, Wen Tong
  • Publication number: 20170105234
    Abstract: Physical layer structures and access schemes for use in such networks are described and in particular initial access channel (IACH) structures are proposed. A spectrum efficient downlink (DL) IACH design supports different types of User Equipment (UE) capabilities and different system bandwidths. An IACH includes the synchronization channel (SCH) and broadcast-control channel (BCH). A non-uniform SCH for all system bandwidths is provided, as well as scalable bandwidth BCH depending on system bandwidth. An initial access procedure is provided, as well as an access procedure.
    Type: Application
    Filed: December 19, 2016
    Publication date: April 13, 2017
    Inventors: Jianglei Ma, Hua Xu, Ming Jia, Sarah Boumendil, Evelyne Le Strat, Hang Zhang, Peiying Zhu, Wen Tong
  • Patent number: 9532386
    Abstract: Physical layer structures and access schemes for use in such networks are described and in particular initial access channel (IACH) structures are proposed. A spectrum efficient downlink (DL) IACH design supports different types of User Equipment (UE) capabilities and different system bandwidths. An IACH includes the synchronization channel (SCH) and broadcast-control channel (BCH). A non-uniform SCH for all system bandwidths is provided, as well as scalable bandwidth BCH depending on system bandwidth. An initial access procedure is provided, as well as an access procedure.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: December 27, 2016
    Assignee: Apple Inc.
    Inventors: Jianglei Ma, Hua Xu, Ming Jia, Sarah Boumendil, Evelyne Le Strat, Hang Zhang, Peiying Zhu, Wen Tong
  • Publication number: 20160156451
    Abstract: The present invention provides methods and devices for mitigating inter-cell interference in communication environments having a plurality of cells. In some embodiments, a time-frequency transmission resource that includes multiple sub-carriers over multiple OFDM symbol intervals is partitioned into a first zone and a second zone. In the first zone, transmissions are transmitted on at least one frequency sub-band which is common to all of the plurality of cells. In the second zone, transmissions are transmitted on at least one frequency sub-band which is used by less than all of the plurality of cells, so as to mitigate inter-cell interference. In some embodiments, in the first zone transmissions are transmitted using a transmission power which is common to all of the plurality of cells and in the second zone transmissions are transmitted using a transmission power which is used by less than all of the plurality of cells so as to mitigate inter-cell interference.
    Type: Application
    Filed: February 8, 2016
    Publication date: June 2, 2016
    Inventors: Jianglei Ma, Ming Jia, Wen Tong, Peiying Zhu, Evelyne Le Strat, Sarah Boumendil
  • Patent number: 9258102
    Abstract: The present invention provides methods and devices for mitigating inter-cell interference in communication environments having a plurality of cells. In some embodiments, a time-frequency transmission resource that includes multiple sub-carriers over multiple OFDM symbol intervals is partitioned into a first zone and a second zone. In the first zone, transmissions are transmitted on at least one frequency sub-band which is common to all of the plurality of cells. In the second zone, transmissions are transmitted on at least one frequency sub-band which is used by less than all of the plurality of cells, so as to mitigate inter-cell interference. In some embodiments, in the first zone transmissions are transmitted using a transmission power which is common to all of the plurality of cells and in the second zone transmissions are transmitted using a transmission power which is used by less than all of the plurality of cells so as to mitigate inter-cell interference.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: February 9, 2016
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Jianglei Ma, Ming Jia, Wen Tong, Peiying Zhu, Evelyne Le Strat, Sarah Boumendil
  • Publication number: 20150257175
    Abstract: Physical layer structures and access schemes for use in such networks are described and in particular initial access channel (IACH) structures are proposed. A spectrum efficient downlink (DL) IACH design supports different types of User Equipment (UE) capabilities and different system bandwidths. An IACH includes the synchronization channel (SCH) and broadcast-control channel (BCH). A non-uniform SCH for all system bandwidths is provided, as well as scalable bandwidth BCH depending on system bandwidth. An initial access procedure is provided, as well as an access procedure.
    Type: Application
    Filed: April 6, 2015
    Publication date: September 10, 2015
    Inventors: Jianglei Ma, Hua Xu, Ming Jia, Sarah Boumendil, Evelyne Le Strat, Hang Zhang, Peiying Zhu, Wen Tong
  • Patent number: 9131458
    Abstract: The method is for sending power control commands in a CDMA cellular radio system from a mobile station to a plurality of base stations with which the mobile station is in soft handoff. The mobile station receiving a signal from each of said base stations determines a power control command based upon the received signals. Such power control command is sent during a plurality of power control groups.
    Type: Grant
    Filed: July 19, 2004
    Date of Patent: September 8, 2015
    Assignee: Alcatel Lucent
    Inventors: Bassam Hashem, Evelyne Le Strat
  • Publication number: 20120188881
    Abstract: Abstract Spatial multiplexing and transmit diversity can improve the capacity of a wireless communication system. The system and method adapts communication schemes for communication systems with multiple antennas utilizing at least two transmission modes. The at least two transmission modes can, but are not necessarily, used for uplink communications. The two transmission modes may be chosen from the group consisting of a single antenna mode, a diversity mode a spatial multiplexed mode and a mixed diversity and spatial multiplexed mode. The at least two transmission modes may involve adaptation among multiple transmitters. At least one receiver may indicate a transmission mode to be used by a transmitter for a subsequent transmission. A transmitter may determine a transmission mode to be used for a subsequent transmission. The transmission mode can be based on channel sounding.
    Type: Application
    Filed: April 19, 2007
    Publication date: July 26, 2012
    Inventors: Jianglei Ma, Ming Jia, Jianming Wu, Peiying Zhu, Wen Tong, Evelyne Le Strat, Sarah Boumendil, Moussa Abdi
  • Patent number: 7881257
    Abstract: A control method allocates to a base station, at a control member of the base station, a list of channels shared by several terminals containing several sets of shared channels. For a communication session between the base station and a specific terminal, the method indicates to the terminal the list of shared channels allocated to the base station. At the base station, the method selects for the terminal one of the sets of shared channels, and independently of the control member, indicates the selected set to the terminal via a dedicated channel.
    Type: Grant
    Filed: January 3, 2003
    Date of Patent: February 1, 2011
    Assignee: Alcatel Lucent
    Inventors: Denis Fauconnier, Sarah Boumendil, Evelyne Le Strat
  • Publication number: 20090274112
    Abstract: Physical layer structures and access schemes for use in such networks are described and in particular initial access channel (IACH) structures are proposed. A spectrum efficient downlink (DL) IACH design supports different types of User Equipment (UE) capabilities and different system bandwidths. An IACH includes the synchronization channel (SCH) and broadcast-control channel (BCH). A non-uniform SCH for all system bandwidths is provided, as well as scalable bandwidth BCH depending on system bandwidth. An initial access procedure is provided, as well as an access procedure.
    Type: Application
    Filed: September 28, 2006
    Publication date: November 5, 2009
    Inventors: Jianglei Ma, Hua Xu, ming Jia, Sarah Boumendil, Evelyne Le Strat, Hang Zhang, Peiying Zhu, Wen Tong
  • Publication number: 20090245197
    Abstract: The present invention provides methods and devices for mitigating inter-cell interference in communication environments having a plurality of cells. In some embodiments, a time-frequency transmission resource that includes multiple sub-carriers over multiple OFDM symbol intervals is partitioned into a first zone and a second zone. In the first zone, transmissions are transmitted on at least one frequency sub-band which is common to all of the plurality of cells. In the second zone, transmissions are transmitted on at least one frequency sub-band which is used by less than all of the plurality of cells, so as to mitigate inter-cell interference. In some embodiments, in the first zone transmissions are transmitted using a transmission power which is common to all of the plurality of cells and in the second zone transmissions are transmitted using a transmission power which is used by less than all of the plurality of cells so as to mitigate inter-cell interference.
    Type: Application
    Filed: August 23, 2006
    Publication date: October 1, 2009
    Applicant: NORTEL NETWORKS LIMITED
    Inventors: Jianglei Ma, Ming Jia, Wen Tong, Peiying Zhu, Evelyne Le Strat, Sarah Boumendil
  • Publication number: 20080219235
    Abstract: A method and system for wireless frequency division multiple access communications in the uplink and/or downlink directions, having an improved pilot insertion scheme for single carrier based communications is provided. A first time duration for transmission of a data payload block (7) is established, and the transmission is processed using a first frequency domain or a time domain. A second time duration for transmission of at least one pilot block (70) is established, and the transmission is processed using a second frequency domain or the time domain, the second time duration (70) is not greater than the first time duration (7).
    Type: Application
    Filed: July 27, 2006
    Publication date: September 11, 2008
    Applicant: NORTEL NETWORKS LIMITED
    Inventors: Jianglei Ma, Ming Jia, Wen Tong, Peiying Zhu, Hua Xu, Moussa Abdi, Evelyne Le Strat, Sarah Boumendil
  • Patent number: 7330482
    Abstract: The digital symbols of a sequence are assigned to respective positions in successive timeslots, according to a predetermined slot format. In a plurality of timeslots, a symbol of the sequence is replaced by a substitution symbol carrying additional information. A signal representing the sequence of symbols, which is divided into the timeslots, is transmitted on a communication channel. The production of the sequence includes an interleaving having an interleaving period longer than a timeslot, generally performed after a channel coding. The position of the substitution symbols in the timeslots which include them is varied, in order to optimize the performances of the transmission chain.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: February 12, 2008
    Assignee: Alcatel Lucent
    Inventors: Sarah Boumendil, Evelyne Le Strat, Bastien Massie
  • Publication number: 20050176435
    Abstract: The invention concerns a method which consists in allocating to a base station, at a control member of the base station, a list of channels shared by several terminals containing several sets of shared channels. For a communication session between the base station and a specific terminal, it consists in indicating to the terminal the list of shared channels allocated to the base station. At the base station, it consists in selecting for the terminal one of the sets of shared channels, and independently of the control member, indicating the selected set to the terminal via a dedicated channel.
    Type: Application
    Filed: January 3, 2003
    Publication date: August 11, 2005
    Inventors: Denis Fauconnier, Sarah Boumendil, Evelyne Le Strat