Patents by Inventor Bengt Lindoff

Bengt Lindoff has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10420095
    Abstract: A method of controlling data transmission of a transceiver is disclosed. The method comprises determining that data is pending for transmission by the transceiver and receiving a signal. A current required transmission effort for transmission of the data is estimated based on the received signal and it is determined if data transmission is to be initiated based on the estimated current required transmission effort, required transmission effort statistics and a time criterion associated with the data. Transmission of the data is initiated if it is determined that so should be done and otherwise the decision of transmitting the data is postponed. Corresponding computer program product, processor, arrangement and wireless communication device are also disclosed.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: September 17, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Bengt Lindoff, Leif Wilhelmsson, Anders Wallen
  • Patent number: 10412656
    Abstract: The proposed technology relates to path selection in wireless mesh networks. In particular the disclosure relates to methods for selection of one or more transmission paths from an originating node to a target node in a wireless mesh network, wherein there are at least two possible transmission paths between the originating node and the target node. More specifically, the disclosure proposes a method, performed in an originating node in a wireless network comprising several nodes wirelessly connected to each other, for enabling selection of a transmission path from the originating node to a target node, wherein there are at least two possible transmission paths between the originating node and the target node. The method comprises the steps of receiving SI discovery signals from nodes in the at least two possible transmission paths and estimating S2, based on the received discovery signals, radio channels H for transmission from the originating node to the nodes transmitting the discovery signals.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: September 10, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Magnus Åström, Bengt Lindoff
  • Publication number: 20190271757
    Abstract: A method performed in a server node associated with a cellular communication system is disclosed. The method is for validation of a first position indication of a wireless communication device, wherein the wireless communication device is adapted to operate in connection with the cellular communication system. The first position indication is obtained via the wireless communication device by a first positioning system. The method comprises obtaining a serving cell identification of the wireless communication device, obtaining a second position indication of the wireless communication device based on the serving cell identification, and determining whether the first position indication is valid based on whether a metric based on the first and second position indications meets a validation criterion.
    Type: Application
    Filed: September 28, 2016
    Publication date: September 5, 2019
    Inventors: Bengt Lindoff, Lars Andersson, Magnus Åström, Patrik Ekdahl, Fredrik Nordström, Andres Reial
  • Patent number: 10405174
    Abstract: A wireless terminal device of a wireless communication system is arranged to operate according to a plurality of radio access technologies, RATs. A method of the wireless terminal device comprises receiving a configuration from a network node of an access network of the wireless communication system, wherein the configuration is a multi-connectivity configuration arranged to operate towards a plurality of RATs simultaneously, determining capabilities of the wireless terminal device, and analyzing the received configuration in view of the capabilities. If the capabilities are fully sufficient for the configuration, the configuration is used for setting up transceiver operation of the wireless terminal device, or if the capabilities are not fully sufficient for the configuration, an adapted configuration is determined for setting up the transceiver operation of the wireless terminal device, wherein the capabilities are fully sufficient for the adapted configuration.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: September 3, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Bengt Lindoff, Robert Baldemair, Icaro L. J. da Silva, Johan Nilsson, Andres Reial, Eliane Semaan
  • Patent number: 10405345
    Abstract: There is provided configuration of a secondary cellular network node for a secondary serving cell associated with a primary serving cell in a carrier aggregation enabled communications network. The secondary cellular network node receives an indication from a primary cellular network node associated with the primary serving cell to start scanning an unlicensed frequency band for deployment of the secondary serving cell. The secondary cellular network node scans at least one unlicensed frequency band to determine whether or not interference from transmitting interferers is present in the at least one unlicensed frequency band. The secondary cellular network node determines, based on the scanning, at least one frequency interval of the at least one unlicensed frequency band substantially free from the transmitting interferers. The secondary cellular network node transmits first configuration information of the at least one frequency interval to the primary cellular network node.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: September 3, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Bengt Lindoff, Leif Wilhelmsson
  • Publication number: 20190268204
    Abstract: The solution presented herein discloses a method of transmitting first symbols via a transceiver comprising a receiver and a transmitter. The method comprises determining a timing discrepancy between a previous reference timing and a current reference timing. The current reference timing is established responsive to a reduced sampling rate used to process second symbols received by the receiver, where the reduced sampling rate is less than a minimum sampling rate at which an inter-symbol distance between the second symbols can be represented by an integer number of samples. The method further comprises adjusting the current reference timing responsive to the timing discrepancy to generate an adjusted reference timing, and determining an uplink transmission timing responsive to the adjusted reference timing. The method further comprises transmitting the first symbols via the transmitter according to the determined uplink transmission timing.
    Type: Application
    Filed: February 10, 2017
    Publication date: August 29, 2019
    Inventors: Joakim Axmon, Dandan Hao, Bengt Lindoff
  • Publication number: 20190268887
    Abstract: A network node, such as a base station, identifies radio resources within an overall bandwidth using a first resource referencing scheme, while a wireless communication device identifies radio resources within an allocated portion of the overall bandwidth using a second resource referencing scheme. Advantageously, the device correctly identifies given radio resources pointed to by a resource identifier expressed according to the first resource referencing scheme, by translating the resource identifier into the second resource referencing scheme according to mapping information that relates the two schemes. Correspondingly, the network node enables the wireless communication device to perform such translations by providing the mapping information either implicitly or explicitly.
    Type: Application
    Filed: May 9, 2019
    Publication date: August 29, 2019
    Inventors: Robert Baldemair, Bengt Lindoff, Stefan Parkvall
  • Publication number: 20190261258
    Abstract: There is provided mechanisms for initial access to a radio access network. The method is performed by a wireless device. The wireless device is configured for accessing the radio access network using at least a first cellular RAT and a second cellular RAT. The method comprises obtaining system information using a first carrier frequency and the first RAT. The system information comprises inter-frequency cell information of the second RAT. The method comprises synchronizing with the second RAT using a second carrier frequency based on the obtained system information in order to establish initial access to the radio access network. The second carrier frequency is higher than the first carrier frequency.
    Type: Application
    Filed: November 10, 2016
    Publication date: August 22, 2019
    Inventors: Bengt Lindoff, Magnus Åström
  • Publication number: 20190260625
    Abstract: The solution presented herein discloses a method of reducing inter-symbol jitter caused while processing each of a plurality of OFDM symbols in a received signal. For each of the plurality of OFDM symbols, the method comprises receiving a plurality of radio samples produced by a sampling of an OFDM symbol at a reduced sampling rate, where the reduced sampling rate causes inter-symbol jitter between the plurality of OFDM symbols. The method further comprises determining a sample offset corresponding to a symbol number for the OFDM symbol, transforming the samples of the OFDM symbol into a plurality of frequency-domain resource elements, and determining a phase offset for each of the resource elements using the sample offset. The method then reduces the inter-symbol jitter by rotating each resource element using the corresponding phase offset to generate phase-rotated resource elements.
    Type: Application
    Filed: February 10, 2017
    Publication date: August 22, 2019
    Inventors: Joakim Axmon, Dandan Hao, Bengt Lindoff
  • Patent number: 10390342
    Abstract: A method for sidelink communication between a first wireless node and a second wireless node is described, the sidelink communication using sub-frames of a first type and a second type. The first wireless node determines whether the first wireless node is an initiator or responder of the sidelink communication. If the first wireless node determines that the first wireless node is an initiator of the sidelink communication, then it transmits data directly toward the second wireless node using the first sub-frame type. Alternatively, if the first wireless node determines that the first wireless node is a responder of the sidelink communication, then it transmits data directly toward the second wireless node using the second sub-frame type, the first sub-frame type being different than the second sub-frame.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: August 20, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Stefan Parkvall, Robert Baldemair, Erik Dahlman, Bengt Lindoff, Karl Werner
  • Patent number: 10390378
    Abstract: There is provided cluster head selection in a communications network. A respective beacon signal is by a wireless device received from each one of at least one further wireless device. Each beacon signal comprises a cluster head capability metric. Each of the received cluster head capability metrics is compared to at least one qualifying criterion. One of the at least one further wireless devices is selected as the cluster head of the wireless device based on the comparison.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: August 20, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Gabor Fodor, Bengt Lindoff, Qianxi Lu, Qingyu Miao, Pontus Wallentin
  • Publication number: 20190253215
    Abstract: A method of a network node of a cellular communication system for mobility from a first radio access network, RAN, operating using a first radio access technology, RAT, to a second RAN operating using a second RAT. The first RAT has synchronisation signals with a first frequency allocation and the second RAT has synchronisation signals with a second frequency allocation in relation to a network frequency for the second RAT. The method comprises determining allocation information about the synchronisation signals of the second RAT, and transmitting a radio resource control, RRC, message including the allocation information about the synchronisation signals of the second RAT. A method for the wireless communication device is also disclosed, as well as a network node, a wireless communication device and computer programs for them.
    Type: Application
    Filed: April 22, 2019
    Publication date: August 15, 2019
    Inventors: Bengt LINDOFF, Peter ALRIKSSON, Magnus ASTROM
  • Patent number: 10375756
    Abstract: A communication device is arranged for three main communication states: a detached state, an idle state, and an active state. The communication device connects to the cellular communication network such that a transition from the detached state to any of idle state or active state is made, performs scheduled operations in the active state or idle state, determines, when a transition from the active state to the idle state occurs, a time instant for a next operation in the active state, disconnects from the cellular communication network such that a transition to the detached state is made, and, when the time for next operation in the active state is approaching, connects to the cellular communication network again. A transceiver and a computer program are also disclosed.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: August 6, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Bengt Lindoff, Anders Wallén, Leif Wilhelmsson
  • Patent number: 10367677
    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: Grant
    Filed: May 13, 2016
    Date of Patent: July 30, 2019
    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, Rul Fan, Gabor Fodor, Pål Frenger, Jonas Fridén, Jonas Fröberg Olsson, Anders Furuskár, 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, Yanil Zheng
  • Publication number: 20190230594
    Abstract: A wireless device and a method therein for performing one or more operations based on available energy. The wireless device is configured to operate in a wireless communications network. Based on an amount of energy available for operation and based on control information, the wireless device determines an allocation of the amount of available energy between at least a first energy part and a second energy part. The first energy part is to be used in a sensing operation using a sensing operation configuration and the second energy part is to be used in a communicating operation using a communicating operation configuration. The wireless device performs based on the determined allocation, one or more operations out of: the sensing operation using the first energy part and the sensing operation configuration, and the communicating operation using the second energy part and the communicating operation configuration.
    Type: Application
    Filed: September 29, 2016
    Publication date: July 25, 2019
    Inventors: Bengt Lindoff, Lars Andersson, Magnus Astrom, Fredrik Nordstrom, Andres Reial
  • Patent number: 10361892
    Abstract: A transmitter comprising a power amplifier, a phase modulator, a switched DC-DC converter, all operating in dual mode, and a controller is disclosed. The power amplifier is arranged to selectively operate either in a first mode or in a second mode, wherein the first mode is a linear mode and the second mode is a non-linear mode in order to save power with least increasing cost in hardware. The transmitter is adapted to operate at different allocated bandwidths, for different radio standards while keeping minimum power consumption governed by the controller. A transceiver, a communication device, a method and a computer program are also disclosed.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: July 23, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Fenghao Mu, Bengt Lindoff
  • Patent number: 10355846
    Abstract: The invention relates to a method in a wireless device for mapping a logical channel to one of a first and a second link. The first link is maintained to a first radio network node and the second link is maintained to a second radio network node. The method comprises obtaining (910) information indicating to which of the first and the second links one or more of at least one logical channel is mapped. The method also comprises selecting (920) a logical channel among the at least one logical channel, and mapping (930) the selected logical channel to one of the first and the second links based on the obtained information. The invention also relates to a corresponding method in the first radio network node.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: July 16, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stefan Parkvall, Erik Dahlman, Bengt Lindoff, Robert Baldemair
  • Patent number: 10356699
    Abstract: There is provided mechanisms for cell search in a cluster based communications network. According to one aspect there is provided a method performed by a wireless device camping on or served by a cluster head device associated with a cluster head carrier frequency. According to one aspect there is provided a method performed by a cluster head device associated with a cluster head carrier frequency. A corresponding wireless device, a corresponding cluster head device, and corresponding computer programs and computer program products are also provided.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: July 16, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Bengt Lindoff, Johan Nilsson
  • Publication number: 20190215789
    Abstract: A method performed by a first user equipment for performing Device-to-Device, D2D, communications with a second user equipment is provided. The first user equipment determines that a valid timing reference is not present in the first user equipment. Also, the first user equipment determines whether a preconfigured timing advance can be used in the D2D communication. Then, when determined that the preconfigured timing advance can be used, the first user equipment transmits a D2D signal to the second user equipment with a timing using the preconfigured timing advance to perform D2D communication. A user equipment, a network node and method therein for enabling D2D communications between user equipments in a radio communications network are also provided.
    Type: Application
    Filed: March 12, 2019
    Publication date: July 11, 2019
    Inventors: Stefan Parkvall, Bengt Lindoff, Qianxi Lu, Stefano Sorrentino
  • Patent number: 10349447
    Abstract: A method of a network node of a wireless communication system is disclosed. The method comprises configuring a first random access channel for transmission of random access messages from wireless communication devices having a first synchronization accuracy vis-à-vis the network node and a second random access channel for transmission of random access messages from wireless communication devices having a second synchronization accuracy vis-à-vis the network node, wherein the second synchronization accuracy is lower than the first synchronization accuracy. The method also comprises transmitting configuration information of at least the second random access channel configurations to one of the wireless communication devices. Corresponding method for a wireless communication device is also disclosed along with a computer program product, a network node, a wireless communication device and arrangements there for.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: July 9, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Bengt Lindoff, Nadia Brahmi, Erik Eriksson, Martin Hessler, Osman Nuri Can Yilmaz