Patents by Inventor Niklas JALDÉN

Niklas JALDÉN 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).

  • METHOD AND SYSTEM FOR DETERMINING SIGNAL QUALITY INDICATIONS
    Publication number: 20220182157
    Abstract: Disclosed is a method and performed by a system of a wireless communication network for determining signal quality indications. The method includes determining a correlation between a quality of a signal received at a first wireless device and a quality of a signal received at a second wireless device, obtaining a first indication of quality of a signal received at the first wireless device, and determining a second indication of quality of signals received at the second wireless device based on the first indication and the determined correlation. The system may be implemented in a radio access network node.
    Type: Application
    Filed: March 26, 2019
    Publication date: June 9, 2022
    Inventors: Anders FURUSKÄR, Niklas JALDÉN
  • Channel-Matrix Dependent Step Size for Iterative Precoding Matrix Calculation
    Publication number: 20220166473
    Abstract: A channel matrix representing characteristics of a multi-path channel between a transmitter device (210) equipped with multiple transmitter antennas (211, 212, 213, 214, 215) and at least one receiver device (220, 230, 240) equipped with one or more receiver antennas (221, 222, 231, 232, 241, 242). The channel matrix is organized in one or more channel vectors each associated with a corresponding one of the one or more receiver antennas (221, 222, 231, 232, 241, 242). An iterative optimization algorithm is applied to determine a precoding matrix from the channel matrix. At least one step size of the iterative optimization algorithm is set depending on a vector norm of at least one of the channel vectors. Multi-antenna transmission by the transmitter device (210) is then controlled based on the determined precoding matrix.
    Type: Application
    Filed: April 5, 2019
    Publication date: May 26, 2022
    Inventors: Mohammadreza Malek-Mohammadi, Niklas Jaldén
  • CONFIGURING A PLURALITY OF USER EQUIPMENTS
    Publication number: 20220166572
    Abstract: Methods and apparatus are provided for configuring a plurality of User Equipments (UEs) to communicate with a base station. In one example, a method includes determining, for each UE, a respective bandwidth based on an indication of channel quality between the UE and the base station, and configuring at least a subset of the plurality of UEs to communicate with the base station based on the respective bandwidths.
    Type: Application
    Filed: March 25, 2019
    Publication date: May 26, 2022
    Inventors: Karl WERNER, Niklas JALDÉN, Mohammadreza MALEK MOHAMMADI
  • Channel-Matrix Reduction for Precoding Control
    Publication number: 20220158694
    Abstract: A channel matrix representing characteristics of a multi-path channel between a transmitter device (210) equipped with multiple transmitter antennas (211, 212, 213, 214, 215) and a receiver device (220, 230, 240) equipped with multiple receiver antennas (221, 222, 231, 232, 241, 242) is determined. The channel matrix is organized in a first number of channel vectors each associated with a different one of the multiple receiver antennas (221, 222, 231, 232, 241, 242). The channel vectors are combined to a smaller second number of linear combinations of the channel vectors and a reduced channel matrix is composed from the linear combinations of the channel vectors. A precoding matrix is determined based on the reduced channel matrix, and multi-antenna transmission by the transmitter device is controlled based on the determined precoding matrix.
    Type: Application
    Filed: April 5, 2019
    Publication date: May 19, 2022
    Inventors: Mohammadreza Malek-Mohammadi, Niklas Jaldén, Karl Werner
  • PILOT SIGNAL ASSIGNMENT
    Publication number: 20220150007
    Abstract: The disclosure provides methods, a base station and network nodes relating to the assignment of pilot signals to wireless devices. One aspect provides a method including obtaining grouping information grouping one or more of the plurality of wireless devices together based at least in part on clustering information corresponding to each of the plurality of wireless devices and according to one or more clustering criterion, assigning at least one pilot signal to the one or more wireless devices based on the grouping information and transmitting the at least one pilot signal.
    Type: Application
    Filed: February 4, 2019
    Publication date: May 12, 2022
    Inventors: Nafiseh SHARIATI, Hamed FARHADI, Niklas JALDÉN
  • BEAM SELECTION FOR TERMINAL DEVICES IN MU-MIMO OPERATION
    Publication number: 20220149921
    Abstract: There is provided mechanisms for beam selection. A method is performed by a network node. The method comprises performing a beam management procedure for at least two terminal devices. During the beam management procedure reference signals are transmitted in a beam sweep as performed in a set of beams. During the beam management procedure, each of the at least two terminal devices reports at least two beams in the set of beams for which the reference signals have been received with highest power. The method comprises selecting which beams to serve the at least two terminal devices based jointly on the reports and a mutual interference criterion for the at least two terminal devices.
    Type: Application
    Filed: February 28, 2019
    Publication date: May 12, 2022
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Andreas NILSSON, Sven PETERSSON, Niklas JALDÉN, Martin JOHANSSON
  • Determination of a preferred beam in a cellular communication network employing signal beam-forming
    Patent number: 11277190
    Abstract: A method for acquiring an indication of a preferred beam of a wireless communication device is disclosed. The method is performed in a network node of a cellular communication network. The network node is adapted to support a plurality of beams of a signal beam-forming scheme and to communicate with the wireless communication device using at least one beam of the plurality of beams. A message indicative of the beam power setting is transmitted to the wireless communication device. Measurement signals are also transmitted. A report indicative of the preferred beam is received from the wireless communication device. The preferred beam is determined by the wireless communication device based on the measurement signals and the beam power setting. Corresponding methods for the wireless communication device, as well as corresponding arrangements, network node, wireless communication device, cellular communication network, and computer program products are also disclosed.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: March 15, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Andreas Nilsson, Henrik Asplund, Fredrik Athley, Niklas Jaldén
  • Cell shaping in a wireless communications network
    Patent number: 11265737
    Abstract: There is provided mechanisms for shaping cells in a wireless communications network. A method is performed by a network node. The method comprises obtaining spatial channel characteristics of a set of currently and/or previously served terminal devices in the wireless communications network, wherein the spatial channel characteristics are indicative of a current collective first network performance metric value for the set of currently and/or previously served terminal devices. The method comprises identifying, using the spatial channel characteristics, those terminal devices of the set of currently and/or previously served terminal devices that have an individual second network performance metric value below a threshold value by comparing the individual second network performance metric value for each of the currently and/or previously served terminal devices to the threshold value.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: March 1, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Hamed Farhadi, Niklas Jaldén, Nafiseh Shariati
  • RECIPROCITY-BASED TRANSMISSION
    Publication number: 20220060231
    Abstract: Embodiments presented herein relate to a method for reciprocity-based transmission in a radio communication network. The method is performed in a base station and may include obtaining a channel estimation of Rx quantities of a set of receive, Rx, and transmit, Tx, distribution networks, obtaining a channel estimation of Rx quantities of a set of Rx distribution networks, and performing reciprocity-based transmission with utilization of the obtained channel estimation of Rx quantities of both the set of Rx and Tx distribution network and the set of Rx distribution network, whereby channel estimation of Rx quantities of more Rx distribution networks than Tx distribution networks are utilized for the reciprocity-based transmission. A method, a base station, a wireless device, a computer programs and a computer program product for reciprocity-based beamforming in a radio communication network are also presented.
    Type: Application
    Filed: December 11, 2018
    Publication date: February 24, 2022
    Inventors: Niklas JALDÉN, Markus RINGSTRÖM
  • Method and devices for estimation of MIMO channel state information
    Patent number: 11233553
    Abstract: A method for estimating Multiple Input Multiple Output, MIMO, channel state information for a radio link between a first radio node including a number N, N?2, of receiving antenna ports and a second radio node including a number M, M?2, of transmitting antenna ports. The method includes obtaining partial channel state information from a reference signal transmitted by a number X, 1?X<M, of said transmitting antenna ports and received by all of said receiving antenna ports, said partial channel state information providing a measure for the N×X propagation channels between all of said receiving antenna ports and said transmitting antenna ports. Also disclosed are corresponding devices and computer programs. Also disclosed is a method for controlling transmission based on estimated channel state information.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: January 25, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Anqi He, Virgile Garcia, Niklas Jaldén, Bo Lincoln, Hai Wang
  • Cell-specific signal generation
    Patent number: 11153003
    Abstract: There is provided mechanisms for generating cell-specific signals using an antenna array with dual-polarized antenna elements. A method is performed by a network device. The method comprises obtaining antenna weights for two sector-specific signals, each sector-specific signal giving rise to a respective sector-specific radiation pattern. The method comprises generating a first cell-specific signal, the first cell-specific signal giving rise to a first cell-specific radiation pattern, wherein antenna weights for the first cell-specific signal are determined such that the radiation pattern matches both sector-specific radiation patterns.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: October 19, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Andreas Nilsson, David Astely, Niklas Jaldén
  • CELL-SPECIFIC SIGNAL GENERATION
    Publication number: 20210167841
    Abstract: There is provided mechanisms for generating cell-specific signals using an antenna array with dual-polarized antenna elements. A method is performed by a network device. The method comprises obtaining antenna weights for two sector-specific signals, each sector-specific signal giving rise to a respective sector-specific radiation pattern. The method comprises generating a first cell-specific signal, the first cell-specific signal giving rise to a first cell-specific radiation pattern, wherein antenna weights for the first cell-specific signal are determined such that the radiation pattern matches both sector-specific radiation patterns.
    Type: Application
    Filed: January 21, 2016
    Publication date: June 3, 2021
    Applicant: Telefonaktiebolaget LM Ericsson (pubs)
    Inventors: Andreas NILSSON, David ASTELY, Niklas JALDÉN
  • Network Architecture, Methods, and Devices for a Wireless Communications Network
    Publication number: 20210126726
    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: December 31, 2020
    Publication date: April 29, 2021
    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, Niklas Johansson, Martin 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
  • Determination of a Preferred Beam in a Cellular Communication Network Employing Signal Beam-Forming
    Publication number: 20210083745
    Abstract: A method for acquiring an indication of a preferred beam of a wireless communication device is disclosed. The method is performed in a network node of a cellular communication network. The network node is adapted to support a plurality of beams of a signal beam-forming scheme and to communicate with the wireless communication device using at least one beam of the plurality of beams. A message indicative of the beam power setting is transmitted to the wireless communication device. Measurement signals are also transmitted. A report indicative of the preferred beam is received from the wireless communication device. The preferred beam is determined by the wireless communication device based on the measurement signals and the beam power setting. Corresponding methods for the wireless communication device, as well as corresponding arrangements, network node, wireless communication device, cellular communication network, and computer program products are also disclosed.
    Type: Application
    Filed: August 10, 2020
    Publication date: March 18, 2021
    Inventors: Andreas Nilsson, Henrik Asplund, Fredrik Athley, Niklas Jaldén
  • CELL SHAPING IN A WIRELESS COMMUNICATIONS NETWORK
    Publication number: 20210076231
    Abstract: There is provided mechanisms for shaping cells in a wireless communications network. A method is performed by a network node. The method comprises obtaining spatial channel characteristics of a set of currently and/or previously served terminal devices in the wireless communications network, wherein the spatial channel characteristics are indicative of a current collective first network performance metric value for the set of currently and/or previously served terminal devices. The method comprises identifying, using the spatial channel characteristics, those terminal devices of the set of currently and/or previously served terminal devices that have an individual second network performance metric value below a threshold value by comparing the individual second network performance metric value for each of the currently and/or previously served terminal devices to the threshold value.
    Type: Application
    Filed: December 13, 2017
    Publication date: March 11, 2021
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Hamed FARHADI, Niklas JALDÉN, Nafiseh SHARIATI
  • DETERMINING BEAM SETTINGS FOR BEAM MANAGEMENT
    Publication number: 20210067981
    Abstract: There is provided mechanisms for determining beam settings for beam management. A method is performed by a first radio transceiver device. The method comprises obtaining information about expected distribution of second radio transceiver devices in a network coverage region of the first radio transceiver device in which the beam management is to be performed. The method comprises determining beam settings for a first set of beams and a second set of beams. The first set of beams and the second set of beams are to be used for the beam management. There are fewer beams in the first set of beams than in the second set of beams. The beams in the first set of beams collectively cover all beams in the second set of beams. The beam settings for the beams in the first set of beams are determined according to the obtained information.
    Type: Application
    Filed: March 16, 2018
    Publication date: March 4, 2021
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Andreas NILSSON, Niklas JALDÉN
  • Network architecture, methods, and devices for a wireless communications network
    Patent number: 10938497
    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: Grant
    Filed: December 13, 2019
    Date of Patent: March 2, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    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, Niklas Johansson, Martin Johansson, Du Ho Kang, Eleftherios Karipidis, Patrik Karlsson, Ali S. Khayrallah, Caner Kilinc, Göran N. Klang, Sara Landstrom, 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
  • Shaping of transmission beams
    Patent number: 10917798
    Abstract: There is provided mechanisms for shaping transmission beams in a wireless communications network. A method is performed by a network node. The method comprises acquiring channel measurements from wireless devices served by radio access network nodes using current beam forming parameters and being controlled by the network node. The method comprises determining, based on the channel measurements, desired beam forming parameters for shaping the transmission beams for at least one of the radio access network nodes. The method comprises initiating network controlled handover of at least some of the wireless devices served by the radio access network nodes based on the desired beam forming parameters. The method comprises initiating a change of the current beam forming parameters to the desired beam forming parameters for shaping the transmission beams for the at least one of the radio access network nodes only after having initiated said network controlled handover.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: February 9, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Andreas Nilsson, Bo Hagerman, Niklas Jaldén, Walter Müller
  • Uplink Scheduling based on Upper and Lower SNR Targets
    Publication number: 20200396753
    Abstract: Uplink radio transmissions (22) from a radio device (10) are scheduled by allocating radio resources for the uplink radio transmissions (22) and controlling a transmit power of the uplink radio transmissions (22). Depending on a bandwidth of radio resources to be allocated for an uplink radio transmission (22) and a current value of the transmit power, an estimate of the signal-to-noise ratio of the uplink radio transmission (22) is determined. The estimate of the signal-to-noise ratio is compared to at least one of the lower target and the upper target. Depending on a result of the comparison, the bandwidth is adapted, and radio resources for the uplink radio transmission (22) are allocated in accordance with the adapted bandwidth.
    Type: Application
    Filed: March 28, 2018
    Publication date: December 17, 2020
    Inventors: Niklas Jaldén, Svante Bergman, Fredrik Nordström
  • METHOD AND DEVICES FOR ESTIMATION OF MIMO CHANNEL STATE INFORMATION
    Publication number: 20200389216
    Abstract: A method for estimating Multiple Input Multiple Output, MIMO, channel state information for a radio link between a first radio node including a number N, N?2, of receiving antenna ports and a second radio node including a number M, M?2, of transmitting antenna ports. The method comprises the steps of includes obtaining partial channel state information from a reference signal transmitted by a number X, 1?X<M, of said transmitting antenna ports and received by all of said receiving antenna ports, said partial channel state information providing a measure for the N×X propagation channels between all of said receiving antenna ports and said transmitting antenna ports. Also disclosed are corresponding devices and computer programs. Also disclosed is a method for controlling transmission based on estimated channel state information.
    Type: Application
    Filed: February 6, 2018
    Publication date: December 10, 2020
    Inventors: Anqi HE, Virgile GARCIA, Niklas JALDÉN, Bo LINCOLN, Hai WANG