Patents by Inventor Bo Hagerman

Bo Hagerman 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).

  • Transmitting device, receiving device, and methods performed therein
    Patent number: 9876606
    Abstract: A transmitting device encodes information bits of a first type of information and a second type of information into a codeword. The transmitting device interleaves the encoded information bits of the first type of information according to a first interleaving pattern and the encoded information bits of the second type of information according to a second interleaving pattern, thereby changing an order of the encoded information bits of at least one of the first type of information and the second type of information in the codeword and generating an interleaved encoded information bit sequence. At least one of the first and the second interleaving pattern is designed to allow the information bits of a first type of information to be decoded without knowing a length of the codeword. The transmitting device then transmits the interleaved encoded information bit sequence to a receiving device.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: January 23, 2018
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Yi-Pin Eric Wang, Leif Wilhelmsson, Bo Hagerman, Per Skillermark, Pontus Arvidson
  • Method, Computer Program and Network Node for Handling Interference Caused by Inter-Modulation
    Publication number: 20180019784
    Abstract: A method of handling interference caused by inter-modulation in a network node site comprising a set of network nodes for wireless communication capable of communication with a set of stations for wireless communication is disclosed. The stations are wireless transceiver devices and communication from the network node to any of the stations is considered to be downlink communication and communication from any of the stations is considered to be uplink communication. The method comprises detecting an interference level on the uplink carrier frequency band for a subset of stations of the set of stations, and determining whether the interference level indicates probable inter-modulation interference. If the interference level indicates probable inter-modulation interference, the method proceeds with modifying a power control scheme for the subset of stations, and sending a parameter set based on the modified power control scheme to the subset of stations. A computer program and network node are also disclosed.
    Type: Application
    Filed: February 6, 2015
    Publication date: January 18, 2018
    Inventors: Claes Tidestav, Bo Hagerman, Bengt Lindoff
  • METHODS AND ARRANGEMENTS FOR WLAN COMMUNICATION OF MULTI-USER DATA IN A SINGLE DATA PACKET
    Publication number: 20170373976
    Abstract: A radio network node, e.g. an Access Point, and wireless devices are comprised in a Wireless Local Area Network. The radio network node is configured to: Identify wireless devices associated with common properties of one or more predetermined property types. Obtain data intended for transmission to the identified wireless devices, where different parts of the data is intended for transmission to different wireless devices. Form a single data packet based on said common properties and comprising the obtained data. The single data packet is associated with a packet type directed to deliver data to only a single wireless device. Transmit the single data packet on a communication channel being accessed by all of the identified wireless devices.
    Type: Application
    Filed: January 27, 2015
    Publication date: December 28, 2017
    Inventors: Miguel Lopez, Bo Hagerman
  • Modulation index shift signaling
    Patent number: 9847895
    Abstract: A transmitting device (20) overlays control information onto information bit stream intended for a receiving device (40) by varying or shifting the modulation index in continuous phase modulation (CPM) waveform. The receiving device (40) detects the modulation index used at the transmitting device (20) to modulate the data burst. The receiving device (40) then determines the control information based on the detected modulation index.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: December 19, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Miguel Lopez, Bo Hagerman, Yi-Pin Eric Wang
  • Method and a network node for determining an offset for selection of a cell of a first radio network node
    Patent number: 9838925
    Abstract: A method and network node (110, 120, 140) for determining an offset for selection of a cell of a first radio network node (110) is provided. The network node (110, 120, 140) comprises a processing circuit configured to determine the offset based on a first distance value for indicating distance between the first radio network node (110) and a second radio network node (120). The network node (110, 120, 140) further comprises a transmitter configured to send information about the offset.
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: December 5, 2017
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Arne Simonsson, Konstantinos Dimou, Bo Hagerman, Sara Landström
  • Method and apparatus for performing coordinated multipoint transmission and reception (CoMP) in a wireless communication network
    Patent number: 9831926
    Abstract: A network node carries out operations for use in coordinating data transmissions to user equipments in a wireless communication network and, in at least one embodiment, the network node obtains signal strength values indicating antenna relationships between respective user equipments and respective antennas among two or more antennas involving at least two access nodes in the network. The network node arranges the user equipments into groups, based on the antenna relationships, and, based on the antenna relationships, associates each group of user equipments with a sub-set of the two or more antennas. Still further, the network node coordinates data transmissions performed by the at least two access nodes to each group of user equipments, using the associated sub-set of the two one or more antennas.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: November 28, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Per Burström, Peter De Bruin, Bo Hagerman, Arne Simonsson, Per Skillermark
  • 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
  • Method, computer program, controller and network node
    Patent number: 9801193
    Abstract: A method of detecting interference caused by inter-modulation in a network node site comprising a set of network nodes for wireless communication capable of communication with a set of stations for wireless communication. The stations are wireless transceiver devices and communication from the network node to any of the stations is considered to be downlink communication and communication from any of the stations is considered to be uplink communication.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: October 24, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Bengt Lindoff, Bo Hagerman, Claes Tidestav
  • Controlling Energy Consumption of a Wireless Network Node
    Publication number: 20170289891
    Abstract: An arrangement for controlling energy consumption of a network node associated with a cell includes a terminal activity monitor configured to detect active terminals served by the cell. A transmission controller is connected to the terminal activity monitor and is configured to restrict transmission downlink in the cell during time periods when there are no active terminals served by the cell. During these time periods transmission is restricted to intermittent transmission of information assisting active terminals not served by the cell in finding the cell.
    Type: Application
    Filed: June 21, 2017
    Publication date: October 5, 2017
    Inventors: Pål Frenger, Bo Hagerman, Bengt Lindoff, Stefan Parkvall
  • Synchronization in the presence of large initial frequency error
    Patent number: 9756591
    Abstract: A method for synchronization in a network node is disclosed. The method comprises determining an N-symbol slice of a received signal, the N-symbol slice corresponding to a sync point hypothesis, dividing the N-symbol slice into one or more segments, each of the one or more segments having the same symbol length, and determining one or more phase rotation operators for each of the one or more segments, the determined one or more phase rotation operators compensating for a phase rotation introduced by an initial frequency error. The method further comprises performing coherent correlation within each of the one or more segments using the determined one or more phase rotation operators, and performing differentially coherent correlation on each of the one or more segments.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: September 5, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Yi-Pin Eric Wang, Bo Hagerman, Ali S. Khayrallah, Michael Samuel Bebawy, Leif Wilhelmsson
  • Scheduling apparatus and method thereof for setting up device-to-device communication
    Patent number: 9750035
    Abstract: The present disclosure relates to a scheduling apparatus (109) for reducing interference in a cellular radio communication system (110). The apparatus comprises a processor. The processor is configured for obtaining an indication that direct (D2D) wireless communication should be set up between a first wireless communication terminal and a second wireless communication terminal of the communication system. The processor is also configured for measuring at least one metric of the communication system, said measurement indicating a risk of interference of signalling from the second terminal to the first terminal. The processor is also configured for allocating, based on said measurement, a first set of frequency and/or time resources (f/t resources) for D2D transmissions from the first terminal to the second terminal. The first set of f/t resources defines a first amount of signalling.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: August 29, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Bengt Lindoff, Bo Hagerman
  • SMALL BANDWIDTH CELL CONFIGURATION, FOR REDUCING INTERFERENCE WITH OVERLAPPING LARGE BANDWIDTH CELL
    Publication number: 20170245288
    Abstract: A method is disclosed of a network node of a cellular communication system for configuring a first cell of the cellular communication system in relation to a second cell of the cellular communication system. A coverage area of the first cell and a coverage area of the second cell overlap, at least partly. The first cell is to be provided by a first base station of the cellular communication system and has a first bandwidth and the second cell is provided by a second base station of the cellular communication system and has a second bandwidth which is larger than the first bandwidth. The method comprises determining an offset between a first carrier frequency of the first cell and a second carrier frequency of the second cell and configuring the first base station to provide the first cell based on the first carrier frequency.
    Type: Application
    Filed: November 3, 2014
    Publication date: August 24, 2017
    Inventors: Bengt LINDOFF, Bo HAGERMAN, Stefan PARKVALL
  • Controlling energy consumption of a wireless network node
    Patent number: 9730166
    Abstract: An arrangement for controlling energy consumption of a network node associated with a cell includes a terminal activity monitor configured to detect active terminals served by the cell. A transmission controller is connected to the terminal activity monitor and is configured to restrict transmission downlink in the cell during time periods when there are no active terminals served by the cell. During these time periods transmission is restricted to intermittent transmission of information assisting active terminals not served by the cell in finding the cell.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: August 8, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Pål Frenger, Bo Hagerman, Bengt Lindoff, Stefan Parkvall
  • ACCESS BEACON TRANSMISSION AND RECEPTION SCHEMES
    Publication number: 20170223604
    Abstract: An access beacon sequence is transmitted by an entity in a communication system, the access beacon sequence comprising at least one access beacon packet. A method includes segmenting the access beacon sequence into access beacon segments, by segmenting said at least one access beacon packet. For each one of the access beacon segments, an access beacon portion is generated to include a corresponding one of the plurality of access beacon segments and an indicator indicating that the access beacon portion refers to an access beacon sequence of the communication system, so as to obtain a plurality of access beacon portions corresponding to the plurality of access beacon segments. Each access beacon portion of the plurality of access beacon portions is transmitted on a respective frequency channel amongst a plurality of frequency channels, where different access beacon portions are sent on different frequency channels according to portion-frequency association information.
    Type: Application
    Filed: June 22, 2016
    Publication date: August 3, 2017
    Inventors: Per Skillermark, Bo Hagerman, Karin Lagergren
  • Methods and arrangements for supporting random access in cellular communication system
    Patent number: 9706526
    Abstract: Methods and nodes in a cellular communication system for supporting Random Access. A method in a first network node involves determining at least one uplink radio resource amongst a plurality of radio resources, and refraining from scheduling uplink communication in the at least one uplink radio resource, thus enabling a UE in an area with an uplink/downlink imbalance to perform Random Access to a neighbor second network node (B).
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: July 11, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Fredrik Gunnarsson, Mehdi Amirijoo, Bo Hagerman, Stefan Wager
  • Methods, computer programs, network node and transceiver device
    Patent number: 9693360
    Abstract: A method of a network node of a radio access network is provided for detecting interference caused by intermodulation on a receive frequency of the network node. The method comprises determining at least one frequency of a signal which potentially gives rise to an intermodulation product on the receive frequency. The method comprises transmitting a request to a transceiver device, wherein the request includes information about the determined at least one frequency and an instruction to monitor that at least one frequency. The method comprises estimating interference level at the receive frequency at one or more time instants. The method comprises receiving a measurement report from the transceiver device, wherein the measurement report includes information about signal levels on the at least one frequency at one or more time instants.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: June 27, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Bengt Lindoff, Ola Andersson, Bo Hagerman
  • UE signal quality measurements on a subset of radio resource elements
    Patent number: 9693249
    Abstract: A user equipment (UE) receives a radio signal which includes a time-frequency grid of radio resource elements. A UE detector measures a signal quality parameter associated with a subset of the radio resource elements in the time-frequency grid. The subset of the radio resource elements is less than a total number of the radio resource elements in the time-frequency grid and corresponds to an individual radio channel. Radio circuitry in the UE reports to a network node the signal quality parameter measured for the subset of the radio resource elements in the time-frequency grid to enable an operation related, for example, to the individual radio channel.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: June 27, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Arne Simonsson, Bo Hagerman
  • Method, Computer Program, Controller and Network Node
    Publication number: 20170181174
    Abstract: A method of detecting interference caused by inter-modulation in a network node site comprising a set of network nodes for wireless communication capable of communication with a set of stations for wireless communication. The stations are wireless transceiver devices and communication from the network node to any of the stations is considered to be downlink communication and communication from any of the stations is considered to be uplink communication.
    Type: Application
    Filed: February 28, 2017
    Publication date: June 22, 2017
    Inventors: Bengt Lindoff, Bo Hagerman, Claes Tidestav
  • Method of constructing a parity-check matrix for using message-passing algorithm to decode the repeat-accumulate type of modulation and coding schemes
    Patent number: 9667274
    Abstract: A method in a network node comprises generating a parity-check matrix for decoding a transmission scheme. The transmission scheme comprises a repetition code, an interleaver, and a modulation having a memory property. The parity-check matrix comprises a function of: a differentiator matrix, the differentiator matrix comprising an inverse of an accumulator matrix; a deinterleaver matrix, the deinterleaver matrix comprising an inverse of an interleaver matrix, the interleaver matrix comprising a square unitary permutation matrix for introducing randomness; and a repetition decoder matrix.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: May 30, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Yi-Pin Eric Wang, Bo Hagerman, Ali S. Khayrallah, Michael Samuel Bebawy, Leif Wilhelmsson