Patents by Inventor Lutz Hans-Joachim Lampe

Lutz Hans-Joachim Lampe 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: 11399355
    Abstract: There is provided a method and user equipment that enable the evaluation of the validity of a timing advance known to a UE for enabling the UE to transmit using preconfigured uplink resources (PUR). The method includes receiving data enabling determination of a measured change in a reference signal received power by a UE. The UE subsequently determines if the measured change in the RSRP is less than a positive change threshold. If the determination is true, the UE proceeds with the transmission using PUR. In some embodiments, prior to proceeding with the transmission, the UE further evaluates or determines if the measured change in the RSRP is greater than a negative change threshold. The UE will subsequently use PUR for the transmission only if the measured change in the RSRP is greater than a negative change threshold.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: July 26, 2022
    Assignee: Sierra Wireless, Inc.
    Inventors: Gustav Gerald Vos, Amr Adel Nasr Abdelnasser, Lutz Hans-Joachim Lampe
  • Publication number: 20220183091
    Abstract: There is provided a method and user equipment (UE) for supporting device to device (D2D) communication, for example side link communication, of wireless devices. At least one of the source UE or the destination UE is out of synchronization. Side link (SL) communication information (e.g. SL sync signal, SL timing request message, SL-data, special sync signal) may be blindly and repeatedly transmitted until the source UE receives a response from the destination UE.
    Type: Application
    Filed: December 9, 2020
    Publication date: June 9, 2022
    Inventors: Gustav Gerald Vos, Vishnu Rajendran Chandrika, Gautham Prasad, Lutz Hans-Joachim Lampe
  • Patent number: 11271659
    Abstract: A receiver architecture is described for phase noise compensation in the presence of inter-channel interference (ICI) and inter-symbol interference (ISI), particularly for time-frequency packing (TFP) transmissions. The receiver includes a coarse phase noise (PN) estimator, a PN compensation module, an ICI cancellation module, an ISI compensation module, a FEC decoder, and an iterative PN estimator. The iterative PN estimator receives log likelihood ratio (LLR) information from the decoder and provides an iterative PN estimation to the PN compensation module. The decoder also provides LLR to the ISI compensation module, and to at least one other receiver for another subchannel that is immediately adjacent in frequency. The ICI cancellation module receives decoder output from at least one adjacent subchannel, which the ICI cancellation module uses to provide a ICI-cancelled signal.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: March 8, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Mrinmoy Jana, Jeebak Mitra, Lutz Hans-Joachim Lampe, Jin Wang, Zhuhong Zhang
  • Publication number: 20220060262
    Abstract: A receiver architecture is described for phase noise compensation in the presence of inter-channel interference (ICI) and inter-symbol interference (ISI), particularly for time-frequency packing (TFP) transmissions. The receiver includes a coarse phase noise (PN) estimator, a PN compensation module, an ICI cancellation module, an ISI compensation module, a FEC decoder, and an iterative PN estimator. The iterative PN estimator receives log likelihood ratio (LLR) information from the decoder and provides an iterative PN estimation to the PN compensation module. The decoder also provides LLR to the ISI compensation module, and to at least one other receiver for another subchannel that is immediately adjacent in frequency. The ICI cancellation module receives decoder output from at least one adjacent subchannel, which the ICI cancellation module uses to provide a ICI-cancelled signal.
    Type: Application
    Filed: August 24, 2020
    Publication date: February 24, 2022
    Inventors: Mrinmoy JANA, Jeebak MITRA, Lutz Hans-Joachim LAMPE, Jin WANG, Zhuhong ZHANG
  • Patent number: 11202324
    Abstract: The present disclosure provides a grant free state for user equipment, for example a machine type communication (MTC) UE. There is provided a method for transitioning a state of a User Equipment (UE). The method includes determining, by the UE, if data is to be sent and transitioning, by the UE, to a grant free state when no data is to be sent, wherein transitioning to the grant free state includes receiving a grant free identifier (GF-ID). In some embodiments, the method further includes in accordance with a determination that an amount of data to be sent is below a threshold, transmitting, by the UE, the data together with the GF-ID. In addition, user equipment and base transceiver stations are provided each of which include a processor and memory having instructions stored thereon, which when executed by the processor configure the respective UE or BTS to perform the respective methods.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: December 14, 2021
    Assignee: SIERRA WIRELESS, INC.
    Inventors: Gustav Gerald Vos, Steven John Bennett, Ali Cagatay Cirik, Naveen Mysore Balasubramanya, Lutz Hans-Joachim Lampe
  • Patent number: 11050603
    Abstract: The disclosed systems, structures, and methods are directed to a superposition based transceiver. The configurations presented herein employ a plurality of encoders configured to encode a plurality of input digital data streams, wherein each of the plurality of input digital data streams operates at different data rates, a plurality of modulators configured to modulate the plurality of encoded digital data input streams. In addition, a plurality of transmitter filters configured to perform up-sampling and filtering of the plurality of modulated digital data streams, and a signal mixer configured to combine the plurality of up-sampled and filtered digital data streams into a single aggregate digital data stream in a manner such that the single aggregate digital data stream contains spectral characteristics that substantially conform to both a central area and a skirt area of a unified spectral emission mask, as specified by European Telecommunications Standards Institute (ETSI).
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: June 29, 2021
    Assignee: HUAWEI TECHNOLOGIES CANADA CO., LTD.
    Inventors: Ming Jian, Ayman Mostafa Mohammad Mostafa Mostafa, Lutz Hans-Joachim Lampe, Hoda Shahmohammadian, Jordan Philip Naterer
  • Publication number: 20200328928
    Abstract: The disclosed systems, structures, and methods are directed to a superposition based transceiver. The configurations presented herein employ a plurality of encoders configured to encode a plurality of input digital data streams, wherein each of the plurality of input digital data streams operates at different data rates, a plurality of modulators configured to modulate the plurality of encoded digital data input streams. In addition, a plurality of transmitter filters configured to perform up-sampling and filtering of the plurality of modulated digital data streams, and a signal mixer configured to combine the plurality of up-sampled and filtered digital data streams into a single aggregate digital data stream in a manner such that the single aggregate digital data stream contains spectral characteristics that substantially conform to both a central area and a skirt area of a unified spectral emission mask, as specified by European Telecommunications Standards Institute (ETSI).
    Type: Application
    Filed: April 9, 2020
    Publication date: October 15, 2020
    Inventors: Ming JIAN, Ayman Mostafa Mohammad Mostafa MOSTAFA, Lutz Hans-Joachim LAMPE, Hoda SHAHMOHAMMADIAN, Jordan Philip NATERER
  • Patent number: 10764847
    Abstract: A method and apparatus for using enhanced PSS (ePSS) transmitted from a base station, for example an eNB, for use by UEs for resynchronization of the UE with the base station is disclosed. According to some embodiments, when resynchronization using the ePSS fails on the first attempt, the UE non-coherently or coherently combines the ePSS with the legacy PSS/SSS in order to resynchronize the UE with the base station. According to some embodiments, when resynchronization using the ePSS fails on the first attempt, the UE non-coherently or coherently combines the ePSS reception results with the legacy PSS/SSS reception results in order to resynchronize the UE with the base station.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: September 1, 2020
    Assignee: Sierra Wireless, Inc.
    Inventors: Gustav Gerald Vos, Naveen Mysore Balasubramanya, Lutz Hans-Joachim Lampe
  • Publication number: 20200260397
    Abstract: There is provided a method and user equipment that enable the evaluation of the validity of a timing advance known to a UE for enabling the UE to transmit using preconfigured uplink resources (PUR). The method includes receiving data enabling determination of a measured change in a reference signal received power by a UE. The UE subsequently determines if the measured change in the RSRP is less than a positive change threshold. If the determination is true, the UE proceeds with the transmission using PUR. In some embodiments, prior to proceeding with the transmission, the UE further evaluates or determines if the measured change in the RSRP is greater than a negative change threshold. The UE will subsequently use PUR for the transmission only if the measured change in the RSRP is greater than a negative change threshold.
    Type: Application
    Filed: February 13, 2020
    Publication date: August 13, 2020
    Inventors: Gustav Gerald Vos, Amr Adel Nasr Abdelnasser, Lutz Hans-Joachim Lampe
  • Patent number: 10455575
    Abstract: The present technology provides a method, apparatus and system for facilitating uplink communication from a user equipment (UE) to a base station in an LTE communication system. One or more frequency subcarriers within a predetermined LTE resource block are selected, covering less than the entire frequency range of the LTE resource block. The selected one or more frequency subcarriers are then used for communication from the UE to the base station.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: October 22, 2019
    Assignee: SIERRA WIRELESS, INC.
    Inventors: Gustav Gerald Vos, Steven John Bennett, Lutz Hans-Joachim Lampe, Ghasem Naddafzadeh Shirazi, Ramon Khalona
  • Patent number: 10425256
    Abstract: An interference mitigation apparatus, comprising: an adaptive feedforward filtering stage and an adaptive feedback filtering stage configured to produce a plurality of output signals from a plurality of frequency downconverted signals, the output signals for being provided to a data decoding stage; a plurality of phase rotators configured to apply phase rotation to the frequency downconverted signals prior to processing by the adaptive feedforward filtering stage and the adaptive feedback filtering stage; and an adaptive controller configured for varying an amount of the phase rotation applied by the phase rotators to the frequency downconverted signals based at least in part on symbol decisions made on the output signals. There may be second phase rotators configured to apply phase rotation after the adaptive feedforward filtering stage so as to produce the output signals for forwarding to the data decoding stage.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: September 24, 2019
    Assignee: HUAWEI TECHNOLOGIES CANADA CO., LTD.
    Inventors: Mrinmoy Jana, Jeebak Mitra, Lutz Hans-Joachim Lampe
  • Publication number: 20190245718
    Abstract: An interference mitigation apparatus, comprising: an adaptive feedforward filtering stage and an adaptive feedback filtering stage configured to produce a plurality of output signals from a plurality of frequency downconverted signals, the output signals for being provided to a data decoding stage; a plurality of phase rotators configured to apply phase rotation to the frequency downconverted signals prior to processing by the adaptive feedforward filtering stage and the adaptive feedback filtering stage; and an adaptive controller configured for varying an amount of the phase rotation applied by the phase rotators to the frequency downconverted signals based at least in part on symbol decisions made on the output signals. There may be second phase rotators configured to apply phase rotation after the adaptive feedforward filtering stage so as to produce the output signals for forwarding to the data decoding stage.
    Type: Application
    Filed: February 6, 2018
    Publication date: August 8, 2019
    Applicant: HUAWEI TECHNOLOGIES CANADA CO., LTD
    Inventors: MRINMOY JANA, JEEBAK MITRA, LUTZ HANS-JOACHIM LAMPE
  • Patent number: 10200961
    Abstract: A method and system for facilitating operational adjustment of a User Equipment (UE) to a Long Term Evolution (LTE) cell serviced by an evolved NodeB (eNB). The eNB transmits a burst of multiple signals, each indicative of a Primary Synchronization Signal (PSS), and transmitted within a predetermined time frame. The UE, receives at least one signal of the burst, decodes the PSS based on the received at least one signal, and performs the operational adjustment based on the decoded PSS. The operational adjustment can include performing synchronization of the UE to the LTE cell and/or acquiring symbol timing of the LTE cell.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: February 5, 2019
    Assignee: Sierra Wireless, Inc.
    Inventors: Gustav Gerald Vos, Naveen Mysore Balasubramanya, Steven John Bennett, Lutz Hans-Joachim Lampe
  • Patent number: 10135540
    Abstract: Systems and methods are disclosed that attempt to increase spectral efficiency by using Faster-than-Nyquist (FTN) transmission. In one embodiment, a method at a transmitter includes partitioning bits into K bit streams, obtaining K power scaled symbol streams, combining the K power scaled symbol streams to obtain a stream of transmission symbols, and transmitting the stream of transmission symbols using FTN signaling. At the receiver, the received symbols are partitioned into K symbol streams, and demodulation and decoding is performed by: (i) demodulating and decoding the Kth symbol stream of the K symbol streams to obtain a Kth set of bits; (ii) mapping the Kth set of bits to a Kth set of symbols; and (iii) for each one of k=K?1, . . . , 1: demodulating and decoding a kth symbol stream of the K symbol streams to obtain a kth set of bits. The demodulating and decoding includes performing interference cancellation.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: November 20, 2018
    Assignee: HUAWEI TECHNOLOGIES CANADA CO., LTD.
    Inventors: Ahmed Mohamed Ibrahim Medra, Jeebak Mitra, Lutz Hans-Joachim Lampe
  • Publication number: 20180324722
    Abstract: A method and apparatus for using enhanced PSS (ePSS) transmitted from a base station, for example an eNB, for use by UEs for resynchronization of the UE with the base station is disclosed. According to some embodiments, when resynchronization using the ePSS fails on the first attempt, the UE non-coherently or coherently combines the ePSS with the legacy PSS/SSS in order to resynchronize the UE with the base station. According to some embodiments, when resynchronization using the ePSS fails on the first attempt, the UE non-coherently or coherently combines the ePSS reception results with the legacy PSS/SSS reception results in order to resynchronize the UE with the base station.
    Type: Application
    Filed: May 2, 2018
    Publication date: November 8, 2018
    Inventors: Gustav Gerald Vos, Naveen Mysore Balasubramanya, Lutz Hans-Joachim Lampe
  • Patent number: 10003390
    Abstract: Systems and methods of precoded faster than Nyquist (FTN) signalling are provided. In the transmitter, Tomlinson-Harashima Preceding (THP) is applied to produce precoded symbols. The THP is based on inter-symbol interference (ISI) due to using faster than Nyquist (FTN) signalling. An inverse modulo operation is not performed in the receiver. Instead, in the receiver, FTN processing is performed based on a matched filter output by determining log a-posteriori probability ratio LAPPR values computed for an nth bit bn of a kth received symbol and pre-computed a-priori probabilities of an extended constellation for a given pulse shape h(t) and FTN acceleration factor combination.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: June 19, 2018
    Assignee: HUAWEI TECHNOLOGIES CANADA CO., LTD.
    Inventors: Mrinmoy Jana, Jeebak Mitra, Lutz Hans-Joachim Lampe, Ahmed Mohamed Ibrahim Medra
  • Publication number: 20180098360
    Abstract: The present disclosure provides a grant free state for user equipment, for example a machine type communication (MTC) UE. There is provided a method for transitioning a state of a User Equipment (UE). The method includes determining, by the UE, if data is to be sent and transitioning, by the UE, to a grant free state when no data is to be sent, wherein transitioning to the grant free state includes receiving a grant free identifier (GF-ID). In some embodiments, the method further includes in accordance with a determination that an amount of data to be sent is below a threshold, transmitting, by the UE, the data together with the GF-ID. In addition, user equipment and base transceiver stations are provided each of which include a processor and memory having instructions stored thereon, which when executed by the processor configure the respective UE or BTS to perform the respective methods.
    Type: Application
    Filed: September 29, 2017
    Publication date: April 5, 2018
    Inventors: Gustav Gerald Vos, Steven John Bennett, Ali Cagatay Cirik, Naveen Mysore Balasubramanya, Lutz Hans-Joachim Lampe
  • Publication number: 20170310373
    Abstract: Systems and methods of precoded faster than Nyquist (FTN) signalling are provided. In the transmitter, Tomlinson-Harashima Preceding (THP) is applied to produce precoded symbols. The THP is based on inter-symbol interference (ISI) due to using faster than Nyquist (FTN) signalling. An inverse modulo operation is not performed in the receiver. Instead, in the receiver, FTN processing is performed based on a matched filter output by determining log a-posteriori probability ratio LAPPR values computed for an nth bit bn of a kth received symbol and pre-computed a-priori probabilities of an extended constellation for a given pulse shape h(t) and FTN acceleration factor combination.
    Type: Application
    Filed: November 2, 2016
    Publication date: October 26, 2017
    Applicant: HUAWEI TECHNOLOGIES CANADA CO., LTD.
    Inventors: MRINMOY JANA, JEEBAK MITRA, LUTZ HANS-JOACHIM LAMPE, AHMED MOHAMED IBRAHIM MEDRA
  • Publication number: 20170302479
    Abstract: The present technology provides a system and methods for carrier frequency offset (CFO) estimation. According to embodiments, there is provided a system and method for CFO estimation for narrow band 3GPP LTE/LTE-A Machine Type Communication (MTC) uplinks.
    Type: Application
    Filed: March 10, 2017
    Publication date: October 19, 2017
    Inventors: Naveen MYSORE BALASUBRAMANYA, Lutz Hans-Joachim LAMPE, Gustav Gerald VOS, Steven John BENNETT
  • Publication number: 20170302383
    Abstract: Systems and methods are disclosed that attempt to increase spectral efficiency by using Faster-than-Nyquist (FTN) transmission. In one embodiment, a method at a transmitter includes partitioning bits into K bit streams, obtaining K power scaled symbol streams, combining the K power scaled symbol streams to obtain a stream of transmission symbols, and transmitting the stream of transmission symbols using FTN signaling. At the receiver, the received symbols are partitioned into K symbol streams, and demodulation and decoding is performed by: (i) demodulating and decoding the Kth symbol stream of the K symbol streams to obtain a Kth set of bits; (ii) mapping the Kth set of bits to a Kth set of symbols; and (iii) for each one of k=K?1, . . . , 1: demodulating and decoding a kth symbol stream of the K symbol streams to obtain a kth set of bits. The demodulating and decoding includes performing interference cancellation.
    Type: Application
    Filed: April 12, 2017
    Publication date: October 19, 2017
    Applicant: HUAWEI TECHNOLOGIES CANADA CO., LTD.
    Inventors: AHMED MOHAMED IBRAHIM MEDRA, JEEBAK MITRA, LUTZ HANS-JOACHIM LAMPE