Patents by Inventor Fredrik Lindqvist

Fredrik Lindqvist 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).

  • UPLINK CONTROL CHANNEL CONFIGURATION FOR UNLICENSED CARRIERS
    Publication number: 20190007937
    Abstract: A physical uplink control channel (PUCCH) format for transmission of uplink control information (UCI) in unlicensed spectrum is either short PUCCH or long PUCCH. The short PUCCH occupies less than 1 subframe in the time domain and spans an entire system bandwidth in the frequency domain with interlacing on a resource block level. The long PUCCH occupies one subframe in the time domain and spans the entire system bandwidth in the frequency domain with interlacing on a resource block level.
    Type: Application
    Filed: December 22, 2017
    Publication date: January 3, 2019
    Inventors: Yu Yang, Fredrik Lindqvist
  • Method and first node for handling a feedback procedure in a radio communication
    Patent number: 10158450
    Abstract: A method and a first node for handling a feedback procedure requiring transmission of feedback messages indicating either an acknowledgement, ACK, or a non-acknowledgement, NACK, of correct reception of data transmitted on a forward link in a radio communication with a second node in a radio network. The first node obtains a latency requirement of the radio communication corresponding to the time from transmission of the data until the data becomes outdated. The first node further applies a first transmission mode employing said feedback procedure when the latency requirement is above a latency threshold, and applies a second transmission mode omitting said feed back procedure when the latency requirement is below the latency threshold.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: December 18, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Erik Eriksson, Martin Hessler, Fredrik Lindqvist, Osman Nuri Can Yilmaz
  • Method and apparatus for generating an indication of remaining battery life for a wireless device
    Patent number: 10136274
    Abstract: A method (100) for generating an indication of remaining battery life for a wireless device is disclosed. The wireless device is positioned in an installation location and operable for radio communication with a communication network node. The method comprises estimating a signal loss between the wireless device in the installation location and the communication network node (120) and mapping the estimated signal loss to an indication of remaining battery life for the wireless device (130). The mapping is based on remaining battery capacity for the wireless device and estimated energy consumption of the wireless device for radio communication, the estimated energy consumption being generated from the estimated signal loss and determined communication parameters for the wireless device.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: November 20, 2018
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Fredrik Lindqvist, Niklas Johansson
  • NETWORK NODE AND METHOD THEREIN FOR DETERMINING A PRECODER FOR TRANSMISSIONS IN A WIRELESS COMMUNICATIONS NETWORK
    Publication number: 20180331737
    Abstract: Embodiments herein relate to a method performed by a network node for determining a precoder for a transmission to a first wireless device in a wireless communications network. The network node obtains at least a Rank Indicator, RI, of the channel used for transmissions to the first wireless device. The network node also obtains information about a preferred interference subspace for the transmissions to the first wireless device from a second wireless device in the wireless communications network, wherein the second wireless device is interfered by the transmissions to the first wireless device. The network node determines the precoder for the transmission to the first wireless device based on the obtained information about a preferred interference subspace if the at least obtained RI of the channel fulfills a first threshold criterion. Embodiments of the network node are also described.
    Type: Application
    Filed: February 5, 2015
    Publication date: November 15, 2018
    Inventors: Magnus Thurfjell, Sara Sandberg, Fredrik Lindqvist
  • Method and Device for Establishing a Computational Puzzle for Use in Communication Between a Client and a Server
    Publication number: 20180131679
    Abstract: The disclosure relates to a method (20) for a serving device (3) of establishing a computational puzzle for use in communication between a client device (2) and the serving device (3). The method (20) comprises establishing (21), in the serving device (3), the computational puzzle (p) based on a key shared by the client device (2) and the serving device (3) and on a solution (s?, s?) to the computational puzzle (p). Further method (30) in a serving device is provided, methods (60, 70) for client devices (2), serving devices (3), client devices (2), computer programs and computer program products.
    Type: Application
    Filed: April 16, 2015
    Publication date: May 10, 2018
    Inventors: Göran Selander, Elena Dubrova, Fredrik Lindqvist, Mats Näslund
  • Method and Apparatus for Generating an Indication of Remaining Battery Life for a Wireless Device
    Publication number: 20180115879
    Abstract: A method (100) for generating an indication of remaining battery life for a wireless device is disclosed. The wireless device is positioned in an installation location and operable for radio communication with a communication network node. The method comprises estimating a signal loss between the wireless device in the installation location and the communication network node (120) and mapping the estimated signal loss to an indication of remaining battery life for the wireless device (130). The mapping is based on remaining battery capacity for the wireless device and estimated energy consumption of the wireless device for radio communication, the estimated energy consumption being generated from the estimated signal loss and determined communication parameters for the wireless device.
    Type: Application
    Filed: April 30, 2015
    Publication date: April 26, 2018
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Fredrik Lindqvist, Niklas Johansson
  • METHOD IN A NETWORK NODE FOR PROVIDING A DEVICE ACCESS TO A NETWORK
    Publication number: 20180092025
    Abstract: The disclosure relates to a method (30) for a network node (6, 7, 8) of a wireless network (1) of providing a device (5, 9) access to the wireless network (1). The method (30) comprises receiving (31), from a device (5, 9), an access request comprising a preamble; establishing (32), in response to the access request, a computational puzzle based on the received preamble; and sending (33) the computational puzzle to the device (5, 9). A corresponding method in a device is also disclosed, as are a network node (6, 7, 8), device (5, 9), computer programs and computer program products.
    Type: Application
    Filed: April 16, 2015
    Publication date: March 29, 2018
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Göran SELANDER, Elena DUBROVA, Fredrik LINDQVIST, Mats NÄSLUND
  • Advanced Error Detection Coding
    Publication number: 20180091259
    Abstract: There is disclosed a method for operating a transmitting node (10, 100) for a wireless communication network, the transmitting node being adapted for transmitting data utilizing error detection coding, wherein the error detection coding has a coding length in bits, the method comprising adapting the coding length based on a retransmission status of the data. There are also disclosed a corresponding method for operating a receiving node and corresponding nodes and program products and storage media.
    Type: Application
    Filed: April 1, 2015
    Publication date: March 29, 2018
    Inventors: Fredrik Lindqvist, Erik Eriksson, Martin Hessler, Osman Nuri Can Yilmaz
  • SRS Design for Unlicensed Carriers
    Publication number: 20180070355
    Abstract: There is disclosed a User Equipment for a MulteFire wireless communication network. The User Equipment comprises processing circuitry and a transmitter, the User Equipment being adapted for utilizing the processing circuitry and the transmitter for performing a Listen-Before-Talk (LBT) procedure for one or more transmission bandwidths; transmitting Physical Uplink Shared CHannel (PUSCH) signaling in a PUSCH subframe on one or more interlaces within the one or more transmission bandwidths; and transmitting Sounding Reference Signaling on the one or more interlaces in the PUSCH subframe.
    Type: Application
    Filed: September 15, 2017
    Publication date: March 8, 2018
    Inventors: Meng Wang, Jung-Fu Cheng, Fredrik Lindqvist, Amitav Mukherjee, Henrik Sahlin
  • Methods and Arrangements for Alert Message Detection in Low Latency Systems
    Publication number: 20180025622
    Abstract: The present disclosure relates to methods and devices in clustered alarm scenarios. More particularly the disclosure pertains to methods and arrangements for detecting several messages of a preconfigured message type, arriving sequentially in time. This disclosure proposes a method, performed in a radio network node, of detecting several messages of a preconfigured message type. The method comprises detecting S1 a first message of the preconfigured message type, the first message being associated with an event. The method further comprises reconfiguring S3, in the radio network node, in response to the detection, at least one radio setting related to detecting further messages of the preconfigured message type and monitoring S4 a radio spectrum for further messages of the preconfigured message type using the reconfigured radio settings.
    Type: Application
    Filed: January 30, 2015
    Publication date: January 25, 2018
    Inventors: Bengt Lindoff, Shehzad Ali Ashraf, Robert Baldemair, Fredrik Lindqvist
  • Methods and Arrangements for Enabling Uplink Radio Access in Clustered Alarm Scenarios
    Publication number: 20180027448
    Abstract: The present disclosure relates to methods and devices in clustered alarm scenarios. More particularly the disclosure pertains to for enabling uplink radio access in clustered alarm scenarios. In particular, the disclosure relates to a method, performed in a radio network node, wherein the radio network node is configured for wireless communication with a plurality of electronic devices, of enabling uplink radio access. The method comprises determining S1 groupings, the groupings dividing the electronic devices into one or more groups and receiving S2, from one of the electronic devices, a request for radio resources.
    Type: Application
    Filed: January 30, 2015
    Publication date: January 25, 2018
    Inventors: Bengt Lindoff, Shehzad Ali Ashraf, Robert Baldemair, Fredrik Lindqvist
  • Interference alignment based precoding method for reducing bandwidth of the backhaul network
    Patent number: 9876540
    Abstract: A method and a first radio node for determining a first precoder to be used by the first radio node for sending a transmission to a second radio node. The first radio node measures a set of cross-channel responses. The first radio node encodes the set of cross-channel responses into a first code-book index using a quantization scheme. The first radio node sends the first code-book index to a central unit. The first radio node receives a second code-book index from the central unit. The first radio node obtains a second precoder by decoding the second code-book index. The first radio node determines the first precoder by compensating the second precoder while taking the quantization scheme and the co-operative interference mitigation scheme into account. The first radio node applies the first precoder to the transmission, to be sent by the first radio node, to the second radio node.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: January 23, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Fredrik Lindqvist, Maxime Guillaud, Mohsen Rezaeekheirabadi
  • Uplink control channel configuration for unlicensed carriers
    Patent number: 9854569
    Abstract: A physical uplink control channel (PUCCH) format for transmission of uplink control information (UCI) in unlicensed spectrum is either short PUCCH or long PUCCH. The short PUCCH occupies less than 1 subframe in the time domain and spans an entire system bandwidth in the frequency domain with interlacing on a resource block level. The long PUCCH occupies one subframe in the time domain and spans the entire system bandwidth in the frequency domain with interlacing on a resource block level.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: December 26, 2017
    Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Yu Yang, Fredrik Lindqvist
  • SRS design for unlicensed carriers
    Patent number: 9848424
    Abstract: There is disclosed a User Equipment for a MulteFire wireless communication network. The User Equipment comprises processing circuitry and a transmitter, the User Equipment being adapted for utilizing the processing circuitry and the transmitter for performing a Listen-Before-Talk (LBT) procedure for one or more transmission bandwidths; transmitting Physical Uplink Shared CHannel (PUSCH) signaling in a PUSCH subframe on one or more interlaces within the one or more transmission bandwidths; and transmitting Sounding Reference Signaling on the one or more interlaces in the PUSCH subframe.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: December 19, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Meng Wang, Jung-Fu Cheng, Fredrik Lindqvist, Amitav Mukherjee, Henrik Sahlin
  • Network Architecture, Methods, and Devices for a Wireless Communications Network
    Publication number: 20170331577
    Abstract: Methods and apparatus in a fifth-generation wireless communications, including an example method, in a wireless device, that includes receiving a downlink signal comprising an uplink access configuration index, using the uplink access configuration index to identify an uplink access configuration from among a predetermined plurality of uplink access configurations, and transmitting to the wireless communications network according to the identified uplink access configuration. The example method further includes, in the same wireless device, receiving, in a first subframe, a first Orthogonal Frequency-Division Multiplexing (OFDM) transmission formatted according to a first numerology and receiving, in a second subframe, a second OFDM transmission formatted according to a second numerology, the second numerology differing from the first numerology. Variants of this method, corresponding apparatuses, and corresponding network-side methods and apparatuses are also disclosed.
    Type: Application
    Filed: May 13, 2016
    Publication date: November 16, 2017
    Inventors: Stefan Parkvall, Janne Peisa, Gunnar Mildh, Robert Baldemair, Stefan Wager, Jonas Kronander, Karl Werner, Richard Abrahamsson, Ismet Aktas, Peter Alriksson, Junaid Ansari, Shehzad Ali Ashraf, Henrik Asplund, Fredrik Athley, Håkan Axelsson, Joakim Axmon, Johan Axnäs, Kumar Balachandran, Gunnar Bark, Jan-Erik Berg, Andreas Bergström, Håkan Björkegren, Nadia Brahmi, Cagatay Capar, Anders Carlsson, Andreas Cedergren, Mikael Coldrey, Icaro L. J. da Silva, Erik Dahlman, Ali El Essaili, Ulrika Engström, Mårten Ericson, Erik Eriksson, Mikael Fallgren, Rui Fan, Gabor Fodor, Pål Frenger, Jonas Fridén, Jonas Fröberg Olsson, Anders Furuskär, Johan Furuskog, Virgile Garcia, Ather Gattami, Fredrik Gunnarsson, Ulf Gustavsson, Bo Hagerman, Fredrik Harrysson, Ning He, Martin Hessler, Kimmo Hiltunen, Songnam Hong, Dennis Hui, Jörg Huschke, Tim Irnich, Sven Jacobsson, Niklas Jaldén, Simon Järmyr, Zhiyuan Jiang, Martin Johansson, Niklas Johansson, Du Ho Kang, Eleftherios Karipidis, Patrik Karlsson, Ali S. Khayrallah, Caner Kilinc, Göran N. Klang, Sara Landström, Christina Larsson, Gen Li, Lars Lindbom, Robert Lindgren, Bengt Lindoff, Fredrik Lindqvist, Jinhua Liu, Thorsten Lohmar, Qianxi Lu, Lars Manholm, Ivana Maric, Jonas Medbo, Qingyu Miao, Reza Moosavi, Walter Müller, Elena Myhre, Karl Norrman, Bengt-Erik Olsson, Torgny Palenius, Sven Petersson, Jose Luis Pradas, Mikael Prytz, Olav Queseth, Pradeepa Ramachandra, Edgar Ramos, Andres Reial, Thomas Rimhagen, Emil Ringh, Patrik Rugeland, Johan Rune, Joachim Sachs, Henrik Sahlin, Vidit Saxena, Nima Seifi, Yngve Selén, Eliane Semaan, Sachin Sharma, Cong Shi, Johan Sköld, Magnus Stattin, Anders Stjernman, Dennis Sundman, Lars Sundström, Miurel Isabel Tercero Vargas, Claes Tidestav, Sibel Tombaz, Johan Torsner, Hugo Tullberg, Jari Vikberg, Peter Von Wrycza, Thomas Walldeen, Pontus Wallentin, Hai Wang, Ke Wang Helmersson, Jianfeng Wang, Yi-Pin Eric Wang, Niclas Wiberg, Emma Wittenmark, Osman Nuri Can Yilmaz, Ali Zaidi, Zhan Zhang, Zhang Zhang, Yanli Zheng
  • Network Architecture, Methods, and Devices for a Wireless Communications Network
    Publication number: 20170331670
    Abstract: Methods and apparatus in a fifth-generation wireless communications network, including an example method, in a wireless device, that includes determining a reporting quality threshold for a parameter related to channel state information (CSI); performing a measurement for each of a plurality of beams from a first predetermined set of beams for evaluation; evaluating the measurement for each of the plurality of beams against the reporting quality threshold; discontinuing the performing and evaluating of measurements in response to determining that the reporting quality threshold is met for one of the beams, such that one or more beams in the first predetermined set of beams are not measured and evaluated; and reporting, to the wireless communications network, CSI for the one of the beams.
    Type: Application
    Filed: May 13, 2016
    Publication date: November 16, 2017
    Inventors: Stefan Parkvall, Janne Peisa, Gunnar Mildh, Robert Baldemair, Stefan Wager, Jonas Kronander, Karl Werner, Richard Abrahamsson, Ismet Aktas, Peter Alriksson, Junaid Ansari, Shehzad Ali Ashraf, Henrik Asplund, Fredrik Athley, Håkan Axelsson, Joakim Axmon, Johan Axnäs, Kumar Balachandran, Gunnar Bark, Jan-Erik Berg, Andreas Bergström, Håkan Björkegren, Nadia Brahmi, Cagatay Capar, Anders Carlsson, Andreas Cedergren, Mikael Coldrey, Icaro L. J. da Silva, Erik Dahlman, Ali El Essaili, Ulrika Engström, Mårten Ericson, Erik Eriksson, Mikael Fallgren, Rui Fan, Gabor Fodor, Pål Frenger, Jonas Fridén, Jonas Fröberg Olsson, Anders Furuskär, Johan Furuskog, Virgile Garcia, Ather Gattami, Fredrik Gunnarsson, Ulf Gustavsson, Bo Hagerman, Fredrik Harrysson, Ning He, Martin Hessler, Kimmo Hiltunen, Songnam Hong, Dennis Hui, Jörg Huschke, Tim Irnich, Sven Jacobsson, Niklas Jaldén, Simon Järmyr, Zhiyuan Jiang, Martin Johansson, Niklas Johansson, Du Ho Kang, Eleftherios Karipidis, Patrik Karlsson, Ali S. Khayrallah, Caner Kilinc, Göran N. Klang, Sara Landström, Christina Larsson, Gen Li, Bo Lincoln, Lars Lindbom, Robert Lindgren, Bengt Lindoff, Fredrik Lindqvist, Jinhua Liu, Thorsten Lohmar, Qianxi Lu, Lars Manholm, Ivana Maric, Jonas Medbo, Qingyu Miao, Reza Moosavi, Walter Müller, Elena Myhre, Johan Nilsson, Karl Norrman, Bengt-Erik Olsson, Torgny Palenius, Sven Petersson, Jose Luis Pradas, Mikael Prytz, Olav Queseth, Pradeepa Ramachandra, Edgar Ramos, Andres Reial, Thomas Rimhagen, Emil Ringh, Patrik Rugeland, Johan Rune, Joachim Sachs, Henrik Sahlin, Vidit Saxena, Nima Seifi, Yngve Selén, Eliane Semaan, Sachin Sharma, Cong Shi, Johan Sköld, Magnus Stattin, Anders Stjernman, Dennis Sundman, Lars Sundström, Miurel Isabel Tercero Vargas, Claes Tidestav, Sibel Tombaz, Johan Torsner, Hugo Tullberg, Jari Vikberg, Peter Von Wrycza, Thomas Walldeen, Anders Wallén, Pontus Wallentin, Hai Wang, Ke Wang Helmersson, Jianfeng Wang, Yi-Pin Eric Wang, Niclas Wiberg, Emma Wittenmark, Osman Nuri Can Yilmaz, Ali Zaidi, Zhan Zhang, Zhang Zhang, Yanli Zheng
  • GENERATING CRYPTOGRAPHIC CHECKSUMS
    Publication number: 20170244564
    Abstract: A method (500) of generating a cryptographic checksum for a message M(x) is provided. The method comprises pseudo-randomly selecting (502) at least two irreducible polynomials pi(x). Each irreducible polynomial pi(x) is selected based on a first cryptographic key from the set of irreducible polynomials of degree ni over a Galois Field. The method further comprises calculating (503) a generator polynomial p(x) of degree n=formula (I) as a product of the N irreducible polynomials formula (II), and calculating (505) the cryptographic checksum as a first function g of a division of a second function of M(x), ƒ(M(x)), modulo p(x), i.e., g(ƒ(M(x)) mod p(x)). By replacing a standard checksum, such as a Cyclic Redundancy Check (CRC), with a cryptographic checksum, an efficient message authentication is provided. The proposed cryptographic checksum may be used for providing integrity assurance on the message, i.e., for detecting random and intentional message changes, with a known level of security.
    Type: Application
    Filed: August 19, 2014
    Publication date: August 24, 2017
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mats NÄSLUND, Elena DUBROVA, Fredrik LINDQVIST, Göran SELANDER
  • Method and First Node for Handling a Feedback Procedure in a Radio Communication
    Publication number: 20170237529
    Abstract: A method and a first node (700) for handling a feedback procedure requiring transmission of feedback messages indicating either an acknowledgement, ACK, or a non-acknowledgement, NACK, of correct reception of data transmitted on a forward link in a radio communication with a second node (702) in a radio network. The first node (700) obtains (300) a latency requirement of the radio communication corresponding to the time from transmission of the data until the data becomes outdated. The first node (700) further applies (304) a first transmission mode employing said feedback procedure when the latency requirement is above a latency threshold, and applies (306) a second transmission mode omitting said feed back procedure when the latency requirement is below the latency threshold.
    Type: Application
    Filed: September 29, 2014
    Publication date: August 17, 2017
    Inventors: Erik Eriksson, Martin Hessler, Fredrik Lindqvist, Osman Nuri Can Yilmaz
  • SRS Design for Unlicensed Carriers
    Publication number: 20170230972
    Abstract: There is disclosed a User Equipment for a MulteFire wireless communication network. The User Equipment comprises processing circuitry and a transmitter, the User Equipment being adapted for utilizing the processing circuitry and the transmitter for performing a Listen-Before-Talk (LBT) procedure for one or more transmission bandwidths; transmitting Physical Uplink Shared CHannel (PUSCH) signaling in a PUSCH subframe on one or more interlaces within the one or more transmission bandwidths; and transmitting Sounding Reference Signaling on the one or more interlaces in the PUSCH subframe.
    Type: Application
    Filed: February 6, 2017
    Publication date: August 10, 2017
    Inventors: Meng Wang, Jung-Fu Cheng, Fredrik Lindqvist, Amitav Mukherjee, Henrik Sahlin
  • Signaling of sequence generator initialization parameters for uplink reference signal generation
    Patent number: 9716577
    Abstract: A base station initializes pseudo-random sequence generators on which wireless devices base generation of uplink reference signals. The base station determines a first sequence from a first subset of possible initialization sequences for a sequence generator of a first device, and determines a second sequence from a second subset of possible initialization sequences for a sequence generator of a second device. The range of this second subset spans at least the range of the first subset. The base station further encodes the first sequence as a first set of two or more parameters, and encodes the second sequence as a second set of one or more parameters. This second set includes at least one parameter not included in the first set, and comprises fewer bits than the first set. The base station initializes the sequence generators by transmitting the first and second sets of parameters to the devices.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: July 25, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stefano Sorrentino, Fredrik Lindqvist