Patents by Inventor Stefan Brueck

Stefan Brueck 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: 20200404510
    Abstract: Techniques for wireless communications are described. A user equipment (UE) may initially configure a set of channel estimation parameters for a set of radio frequency spectrum subbands of a bandwidth part (BWP) of a transmission opportunity (TxOP). In some examples, the UE may identify an unavailable radio frequency spectrum subband within the BWP. Based on the identification, the UE may reconfigure the channel estimation parameters to avoid performing unnecessary channel estimation processes on the unavailable radio frequency spectrum subband. As part of reconfiguring the channel estimation parameters, the UE may set log-likelihood ratio (LLR) values of subcarriers associated with the unavailable radio frequency spectrum subband to a null value, thereby experiencing improvements in efficiency and reliability of channel estimation for the BWP.
    Type: Application
    Filed: June 18, 2020
    Publication date: December 24, 2020
    Inventors: Francesco Negro, Stefan Brueck, Tae Min Kim, Jing Sun, Aamond Khandekar
  • Patent number: 10869332
    Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive a first grant to perform a first uplink transmission in a first subframe using a first component carrier. The UE may receive a second grant to perform a second uplink transmission in a second subframe adjacent the first subframe in time. The UE may determine to null one or more symbols of the uplink transmission in the first subframe based at least in part on the second grant. In some cases, the UE may determine to null the one or more symbols of the first uplink transmission is based at least in part on an availability of a single radio frequency (RF) frontend for use by the UE.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: December 15, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Francesco Negro, Stefan Brueck
  • Publication number: 20200359243
    Abstract: A configuration to improve the manner in which a UE is configured to perform RLM for UEs that do not support CSI-RS based RLM. The apparatus may transmit, to a base station, an indication including a RLM capability. The apparatus may receive, from the base station, a RLM RS configuration from the UE based on the indication. The apparatus determines the RLM RS configuration for the UE, based on the RLM RS configuration received from the base station.
    Type: Application
    Filed: April 7, 2020
    Publication date: November 12, 2020
    Inventors: Yan ZHOU, Ruhua HE, Stefan BRUECK, Yong LI, Tao LUO
  • Publication number: 20200351039
    Abstract: Methods, systems, and devices for wireless communications are described. A base station may identify an active transmission configuration indicator (TCI) state, a set of active TCI states, and/or a spatial relation reference signal identifier to be used for one or more component carriers (CCs) of a UE. The base station may then transmit a control message to the UE that may indicate the identified active TCI state, set of active TCI states, and/or spatial relation reference signal identifier to be used for one or more CCs and/or bandwidth parts of the UE. The UE may determine a communication configuration for a CC of the plurality of CC based on the control message and an optional shared command indication. The UE may the apply the TCI state or set of active TCI states to a subset of CCs, or UE may configure sounding reference signals for a subset of CCs.
    Type: Application
    Filed: April 29, 2020
    Publication date: November 5, 2020
    Inventors: Yan Zhou, Tao Luo, Ruhua He, Stefan Brueck
  • Publication number: 20200351674
    Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for dynamic updates to beam failure detection (BFD) reference signals (RSs) and path loss RS using medium access control-control element (MAC-CE) or downlink control information (DCI). For example, the quasi co-location (QCL) of periodic CSI-RS may be dynamically updated by the MAC-CE or DCI when the periodic CSI-RS is for BFD RS. Also, a semi-persistent CSI-RS or aperiodic CSI-RS may act as a BFD RS. An enhanced update procedure may be used to update the path loss RS dynamically using MAC-CE or DCI. In some cases, the path loss RS parameters updated via MAC-CE or DCI may overwrite the previously RRC configured path loss RS parameters. In another example, if the path loss RS is not configured, then the path loss RS by default may be the spatial relation reference signal of the corresponding uplink beam.
    Type: Application
    Filed: April 27, 2020
    Publication date: November 5, 2020
    Inventors: Yan Zhou, Tao Luo, Ruhua He, Stefan Brueck, Parisa Cheraghi
  • Publication number: 20200351046
    Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for dynamic updates to beam failure detection (BFD) reference signals (RSs) and path loss RS using medium access control-control element (MAC-CE) or downlink control information (DCI). For example, the quasi co-location (QCL) of periodic CSI-RS may be dynamically updated by the MAC-CE or DCI when the periodic CSI-RS is for BFD RS. Also, a semi-persistent CSI-RS or aperiodic CSI-RS may act as a BFD RS. An enhanced update procedure may be used to update the path loss RS dynamically using MAC-CE or DCI. In some cases, the path loss RS parameters updated via MAC-CE or DCI may overwrite the previously RRC configured path loss RS parameters. In another example, if the path loss RS is not configured, then the path loss RS by default may be the spatial relation reference signal of the corresponding uplink beam.
    Type: Application
    Filed: February 28, 2020
    Publication date: November 5, 2020
    Inventors: Yan Zhou, Tao Luo, Ruhua He, Stefan Brueck, Parisa Cheraghi
  • Patent number: 10560957
    Abstract: The present disclosure relates to resolving out-of-sync uplink grants for communication in an unlicensed spectrum. For example, a user equipment (UE) may receive an uplink grant from a network entity on a downlink communication channel, wherein the uplink grant is associated with a system frame number (SFN). The UE may further determine, based on the SFN, that the uplink grant is out of order with one or more stored uplink grants within a queue. Additionally, the UE may insert the uplink grant in an ordered position within the queue relative to the one or more stored uplink grants.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: February 11, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Stefan Brueck, Sunil Kumar Kandukuri Narayana, Brian George, Chengjin Zhang
  • Publication number: 20190394791
    Abstract: The present disclosure relates to resolving out-of-sync uplink grants for communication in an unlicensed spectrum. For example, a user equipment (UE) may receive an uplink grant from a network entity on a downlink communication channel, wherein the uplink grant is associated with a system frame number (SFN). The UE may further determine, based on the SFN, that the uplink grant is out of order with one or more stored uplink grants within a queue. Additionally, the UE may insert the uplink grant in an ordered position within the queue relative to the one or more stored uplink grants.
    Type: Application
    Filed: June 20, 2018
    Publication date: December 26, 2019
    Inventors: Stefan BRUECK, Sunil Kumar KANDUKURI NARAYANA, Brian GEORGE, Chengjin ZHANG
  • Publication number: 20190021107
    Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive a first grant to perform a first uplink transmission in a first subframe using a first component carrier. The UE may receive a second grant to perform a second uplink transmission in a second subframe adjacent the first subframe in time. The UE may determine to null one or more symbols of the uplink transmission in the first subframe based at least in part on the second grant. In some cases, the UE may determine to null the one or more symbols of the first uplink transmission is based at least in part on an availability of a single radio frequency (RF) frontend for use by the UE.
    Type: Application
    Filed: July 12, 2017
    Publication date: January 17, 2019
    Inventors: Francesco Negro, Stefan Brueck
  • Patent number: 10093146
    Abstract: An air-conditioning system for a vehicle, comprising a refrigerant circuit through which a refrigerant can flow and which is configured as a heat pump circuit and as a cooling system circuit, and associated with these, a compressor, at least one external heat exchanger, at least one internal heat exchanger that is associated with an internal heating condenser, whereby a device is provided for generating an air stream that can be thermally coupled to the internal heat exchanger and to the internal heating condenser, as well as a metering device that can meter the flow of at least a partial stream of the thermally coupled air stream through the internal heating condenser is provided, wherein in the heat pump mode of operation, the refrigerant can be or is conveyed from the high-pressure side of the compressor into the internal heating condenser, can be or is conveyed from the internal heating condenser via a first expansion valve to the internal heat exchanger, can be or is conveyed from the internal heat ex
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: October 9, 2018
    Assignee: Volkswagen Aktiengesellschaft
    Inventors: Matthias Fürll, Stefan Schmitt, Horst Achim Schröter, Stefan Brück, Gregor Homann
  • Publication number: 20160157145
    Abstract: An apparatus operable in a communication system is described. The apparatus includes means for receiving a neighbor relation message from another apparatus. The apparatus also includes means for generating cluster information based on the neighbor relation message. The apparatus further includes means for transmitting the cluster information to the other apparatus.
    Type: Application
    Filed: February 8, 2016
    Publication date: June 2, 2016
    Inventors: Stefan Brueck, Armin Dekorsy
  • Patent number: 9288690
    Abstract: An apparatus operable in a communication system is described. The apparatus includes means for receiving a neighbor relation message from another apparatus. The apparatus also includes means for generating cluster information based on the neighbor relation message. The apparatus further includes means for transmitting the cluster information to the other apparatus.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: March 15, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Stefan Brueck, Armin Dekorsy
  • Patent number: 9204403
    Abstract: An exemplary method of controlling communications that may include high speed downlink packet access (HSDPA) traffic includes setting a first power limit below an allowable power limit. A second power limit is set that is below the first power limit. A determination is made whether there is any HSDPA traffic. The first power limit is selected for non-HSDPA traffic when there is no HSDPA traffic. The second power limit is selected for non-HSDPA traffic when there is HSDPA traffic.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: December 1, 2015
    Assignee: Alcatel Lucent
    Inventors: Stefan Brueck, Jens Mueckenheim, Mohammad Ather Khan, Patrick Charriere
  • Patent number: 9143365
    Abstract: A method of performing channel estimation includes receiving a frame that includes, for each subcarrier of a subset of subcarriers in the frame, a pair of pilot symbols in the subcarrier. The subcarriers of the subset are regularly spaced apart from one another in the frequency domain. Time-averaged channel estimates for each subcarrier of the subset are generated based on the pairs of pilot symbols. Frequency-averaged channel estimates for respective subcarriers are generated based on the time-averaged channel estimates. Interpolation is performed between respective frequency-averaged channel estimates to generate interpolated channel estimates for subcarriers between the respective subcarriers.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: September 22, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Hendrik Schoeneich, Stefan Brueck, Juan Montojo
  • Patent number: 9130607
    Abstract: A system and method of coordinating scheduling in a wireless communication system are described herein. In one aspect, user equipments determine one or more cells that interfere with communications received by the user equipments. The user equipment may determine particular information about the interfering cells, including a metric function based on the precoding matrix used by the interfering cell. The user equipment may transmit this information to the interfering cell in order to coordinate the use of precoding matrices between cells.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: September 8, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Jochen U. Giese, Stefan Brueck, Muhammad Awais Amin
  • Patent number: 9106470
    Abstract: A receiver circuit, including a multi-stage QAM de-mapper, for receiving a QAM data signal is disclosed. A first de-mapper circuit recovers a set of encoded data bits from the QAM data signal by calculating a plurality of distances between a received QAM symbol and each of a plurality of possible constellation points. A second de-mapper circuit then generates a set of unencoded data bits for the received QAM symbol based, at least in part, on the plurality of distances calculated by the first de-mapper circuit. The receiver circuit may further include a decoder circuit to decode the set of encoded data bits recovered by the first de-mapper circuit. The second de-mapper circuit may identify a subset of the plurality of possible constellation points based on a result of the decoding and select a constellation point that is associated with the shortest distance of the plurality of distances.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: August 11, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Lu Zhao, Stefan Brueck, Stephan Schlupkothen, Muhammad Awais Amin, Juan Montojo, Marc W. Werner, Hendrik Schoeneich
  • Patent number: 9042432
    Abstract: An adaptive filter bank can be implemented on a PLC device to dynamically adapt to variations in notching requirements and the performance of the PLC medium. The PLC device can apply filter coefficients to one or more filter elements of the adaptive filter bank to generate one or more notched subcarriers in the PLC band. A performance measurement of one or more subcarriers in the PLC band can be determined and evaluated against corresponding performance measurement thresholds. For a given notched subcarrier, if the performance measurement of the corresponding subcarriers is not in accordance with the performance measurement threshold, updated filter coefficients for the filter element configured to generate the notched subcarrier can be determined based, at least in part, on the performance measurement of the one or more subcarriers. The filter coefficients of the filter element can then be updated using the updated filter coefficients.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 26, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Marc Walter Werner, Stefan Brueck, Lawrence Winston Yonge, III
  • Patent number: 8948800
    Abstract: A system and method of coordinating scheduling in a wireless communication system are described herein. In one aspect, cells receive information regarding one or more precoding matrices from user equipments. The information may include a request from an user equipment that the cell not use a particular precoding matrix for communications. The cell may determine whether restricting usage of the precoding matrix for communication improves overall communication in the wireless communication system by performing pair-wise comparisons of utility based on usage and restriction of the precoding matrix. The cell may further resolve conflicts that arise between several cells based on the granting of restriction of the precoding matrix.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: February 3, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Muhammad Awais Amin, Jochen U. Giese, Stefan Brueck
  • Publication number: 20140269868
    Abstract: An adaptive filter bank can be implemented on a PLC device to dynamically adapt to variations in notching requirements and the performance of the PLC medium. The PLC device can apply filter coefficients to one or more filter elements of the adaptive filter bank to generate one or more notched subcarriers in the PLC band. A performance measurement of one or more subcarriers in the PLC band can be determined and evaluated against corresponding performance measurement thresholds. For a given notched subcarrier, if the performance measurement of the corresponding subcarriers is not in accordance with the performance measurement threshold, updated filter coefficients for the filter element configured to generate the notched subcarrier can be determined based, at least in part, on the performance measurement of the one or more subcarriers. The filter coefficients of the filter element can then be updated using the updated filter coefficients.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: QUALCOMM INCORPORATED
    Inventors: Marc W. Werner, Stefan Brueck, Lawrence W. Yonge, III
  • Publication number: 20140255029
    Abstract: A coax network unit (CNU) receives downstream bursts from a coax line terminal (CLT) and transmits upstream bursts to the CLT. The downstream bursts include start markers that indicate the beginnings of the downstream bursts and may also include pilot symbols. The downstream bursts are continuous across available resource elements in a matrix of subcarriers and orthogonal frequency-division multiplexing (OFDM) symbols. The available resource elements exclude resource elements in the matrix that carry the pilot symbols. The upstream bursts may include start markers indicating the beginnings of the upstream bursts and end markers indicating the ends of the upstream bursts. Respective upstream bursts are transmitted in respective groups of one or more resource blocks allocated to the CNU.
    Type: Application
    Filed: November 19, 2013
    Publication date: September 11, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Nicola Varanese, Hendrik Schoeneich, Christian Pietsch, Christoph Arnold Joetten, Andrea Garavaglia, Stefan Brueck, Juan Montojo