Patents by Inventor Peter Alriksson

Peter Alriksson 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).

  • Measurements for frequency hopping systems
    Patent number: 11251830
    Abstract: A method (1100) in a wireless device (110) comprises identifying (1104) a configuration of a coordinated measurement occasion. The method comprises, during the coordinated measurement occasion (530, 630, 710, 830, 930), performing (1108) one or more measurements with respect to a plurality of reference signals transmitted from different cells (125, 515, 520, 525, 615, 620, 625, 715, 720, 725, 815, 820, 825, 915, 920, 925), in accordance with the identified configuration, wherein: each of the different cells is associated with at least one of the plurality of reference signals; and the configuration defines a common time interval and one or more common frequencies for the different cells to transmit their respective associated reference signal during the coordinated measurement occasion.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: February 15, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Oskar Drugge, Emma Wittenmark, David Sugirtharaj, Peter Alriksson, Yusheng Liu
  • Optimization of automatic gain control for narrow bandwidth operation
    Patent number: 11239871
    Abstract: The gain of an amplifier in a receiver operating in a cellular communication system is controlled by determining one or more gain variability metrics, which are then used to produce first and second threshold values. A frequency difference between a current carrier frequency and a target carrier frequency is ascertained and then compared to the threshold values. Target gain setting production is based on comparison results: If the frequency difference is larger than the first threshold, a first automatic gain control algorithm is performed; if the frequency difference is smaller than the first threshold and larger than the second threshold, a second automatic gain control algorithm is performed, wherein the second automatic gain control algorithm uses a current gain setting as a starting point; and if the frequency difference is smaller than both the first and second thresholds, the current gain setting is used as the target gain setting.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: February 1, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Peter Alriksson, Joakim Axmon
  • HANDLING MULTIPLE TRANSMISSION OPPORTUNITIES IN A PAGING OCCASION
    Publication number: 20220015146
    Abstract: A method is provided for use in a network node in wireless communications network. The method includes determining, a plurality of transmission opportunities, TXOPs, in which to attempt to transmit a paging signal in a plurality of beams. The plurality of beams have a beam order. The method further includes assigning a predetermined number of the plurality of TXOPs to each beam of the plurality of beams, wherein none of the TXOPs is assigned to more than one beam. The method further includes performing at least one clear channel assessment, CCA, before transmitting the paging signal in one of the TXOPs. The method further includes transmitting the paging signal in a first beam of the plurality of beams using one of the plurality of TXOPs assigned to the first beam based on a first successful CCA covering the used TXOP.
    Type: Application
    Filed: November 1, 2019
    Publication date: January 13, 2022
    Inventors: Johan RUNE, Peter ALRIKSSON
  • Handover delay reduction using unlicensed spectrum
    Patent number: 11223982
    Abstract: A method performed by a wireless communication device for reducing handover delay, wherein the wireless communication device is arranged to operate in a cellular communication system and to operate in a cell using unlicensed spectrum. The method includes receiving a downlink, DL, signal from network node operating a neighbouring cell operating in the unlicensed spectrum, wherein the DL signal includes a discovery reference signal, DRS, subframe, storing data associated with the DRS subframe, receiving a handover command from a network node operating a serving cell where the neighbouring cell is a target cell, and performing a random access procedure for handover to the target cell. A device performing the method and a computer program for implementing the method are also disclosed.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: January 11, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Chunhui Zhang, Peter Alriksson, Yusheng Liu, Mai-Anh Phan, David Sugirtharaj, Emma Wittenmark
  • ADAPTIVE SENSING MECHANISM FOR UNLICENSED NETWORKS
    Publication number: 20210410185
    Abstract: Methods and systems for dynamically adapting an Energy Detection (ED) threshold for use in an unlicensed network are provided. According to one aspect, a method for dynamically adapting ED threshold for use in an unlicensed network comprises determining an ED threshold based on a current state of an unlicensed network and using the determined ED threshold for channel sensing and/or signaling the ED threshold to another entity for use during channel sensing.
    Type: Application
    Filed: September 30, 2019
    Publication date: December 30, 2021
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Tai DO, Peter ALRIKSSON, Stephen GRANT, Min WANG, Jan CHRISTOFFERSSON, Narendar MADHAVAN, Reem KARAKI, Guido Roland HIERTZ, Havish KOORAPATY, Johan RUNE
  • Rate Matching for Wideband Carrier Operation in NR-U
    Publication number: 20210400722
    Abstract: An example method is performed by a wireless device in a wireless communication network. The method comprises receiving, from a base station, a control message allocating resources in a bandwidth part for a downlink transmission, the bandwidth part including unlicensed spectrum and being divided into a plurality of bandwidth pieces corresponding to bandwidth units over which listen-before-talk (LBT) is performed. The radio resources used for the downlink transmissions exclude (e.g., by puncturing or rate-matching around) one or more guard bands of a bandwidth piece that is sensed as free for transmission.
    Type: Application
    Filed: September 30, 2019
    Publication date: December 23, 2021
    Inventors: Stephen Grant, Reem Karaki, Peter Alriksson, Tai DO, Jung-Fu Cheng, Havish Koorapaty
  • Interlace hopping in unlicensed band
    Patent number: 11201704
    Abstract: Methods and arrangements for determining a next interlace having a next structure to be applied during a next transmission interval in an unlicensed spectrum are disclosed. The next structure is to be applied for a transmission over a wireless interface in a wireless communications network operating in an unlicensed spectrum, wherein a first interlace is applied during transmission in a first transmission interval and wherein the first interlace has a first interlace structure formed by a plurality of physical resource blocks, PRBs, that are arranged with a given subcarrier spacing in one of a set of interlaces. The method includes defining a frequency shift based on the number of PRBs per interlace and a maximum allowed power for a single interlace and determining the next interlace structure by shifting the first interlace structure by the defined frequency shift.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: December 14, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Thomas Nilsson, Peter Alriksson, Jung-Fu Cheng, Tai Do
  • Method and apparatus for beamforming control in a wireless communication network
    Patent number: 11196463
    Abstract: A wireless communication apparatus (10) uses a RADAR or LIDAR assembly to scan for obstructions in predefined beam directions relative to a directional antenna (40) and correspondingly classifies each direction as obstructed or unobstructed. Then, at least for communication signal frequencies above a defined frequency threshold, the apparatus (10) configures beamforming at the directional antenna (40) to prioritize beams corresponding to the unobstructed directions, or avoid beams corresponding to the obstructed directions. The beam prioritization or avoidance applies to transmit beamforming, receive beamforming, or both. In one or more implementations, the direction classifications may not be binary. For example, detected obstruction distances along the beam directions may be used to “grade” the respective directions in terms of usage priority, beam adaptations, and/or restrictions on the communication frequencies used.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: December 7, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Jens Jansson, Peter Alriksson, Jagadeesh Arunachalam
  • PAGING IN UNLICENSED SPECTRUM
    Publication number: 20210337502
    Abstract: In an embodiment, a method and a terminal for acquiring paging information during a set of one or more paging occasions, one paging occasion corresponding to a subframe. In an embodiment, the method determines a first subframe of the set of one or more paging occasions and determines a last subframe of the set of one or more paging occasions.
    Type: Application
    Filed: August 31, 2017
    Publication date: October 28, 2021
    Inventors: Mai-Anh PHAN, Peter ALRIKSSON, Henning WIEMANN
  • Transmission Scheduling in an Unlicensed Frequency Band
    Publication number: 20210307035
    Abstract: A radio network node (12) is configured for use in a wireless communication system (10). The radio network node (12) is configured to monitor for signaling (20), from each of multiple wireless devices (14) that are candidates for performing uplink transmission within an unlicensed frequency band (18), indicating whether the unlicensed frequency band (18) is deemed clear for the wireless device to transmit within according to a measurement performed by the wireless device over that unlicensed frequency band (18). The radio network node (12) is also configured to schedule, based on that monitoring, uplink transmission within the unlicensed frequency band (18) to be performed by one or more of the wireless devices that each signal the unlicensed frequency band (18) is deemed clear for the wireless device to transmit within.
    Type: Application
    Filed: May 28, 2019
    Publication date: September 30, 2021
    Inventors: Tai Do, Thomas Nilsson, Peter Alriksson
  • SSB TRANSMISSIONS IN UNLICENSED SPECTRUM
    Publication number: 20210297968
    Abstract: A method is implemented in a wireless transceiver device arranged to operate in a cellular wireless communication network and capable of operating in an unlicensed spectrum where listen-before-talk is employed. The method includes determining a first parameter, for the unlicensed operation, indicative on provision of synchronisation signal blocks, and determining quasi-co-location, QCL, relationship between one or more synchronisation signal and physical broadcast channel, SS/PBCH, blocks each having a first index, by determining a second index for the one or more SS/PBCH blocks by applying a modulo operation on the first index, respectively, based on the first parameter, where the QCL relationship is determined to occur if the second indices coincide. A computer program for implementing the method in a wireless transceiver and such a transceiver are also disclosed.
    Type: Application
    Filed: August 7, 2019
    Publication date: September 23, 2021
    Inventors: Peter ALRIKSSON, Stephen GRANT, Gen LI
  • Method and Apparatus for Beamforming Control in a Wireless Communication Network
    Publication number: 20210273686
    Abstract: A wireless communication apparatus (10) uses a RADAR or LIDAR assembly to scan for obstructions in predefined beam directions relative to a directional antenna (40) and correspondingly classifies each direction as obstructed or unobstructed. Then, at least for communication signal frequencies above a defined frequency threshold, the apparatus (10) configures beamforming at the directional antenna (40) to prioritize beams corresponding to the unobstructed directions, or avoid beams corresponding to the obstructed directions. The beam prioritization or avoidance applies to transmit beamforming, receive beamforming, or both. In one or more implementations, the direction classifications may not be binary. For example, detected obstruction distances along the beam directions may be used to “grade” the respective directions in terms of usage priority, beam adaptations, and/or restrictions on the communication frequencies used.
    Type: Application
    Filed: June 27, 2018
    Publication date: September 2, 2021
    Inventors: Jens Jansson, Peter Alriksson, Jagadeesh Arunachalam
  • Signaling downlink control information in a wireless communication network
    Patent number: 11089581
    Abstract: A wireless device is configured with or allocated two or more control resource sets for receiving downlink control information from a base station or cell. The two or more control resource sets correspond to two or more possible states of a time slot used for downlink transmission. The wireless device determines the state of a time slot and selects one or the two or more control channel resource sets to monitor for DCI depending on the state of the time slot. In one exemplary embodiment, the time slot has two possible states and the state of the time slot is determined by the presence or absence of an SS block.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: August 10, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Magnus Åström, Peter Alriksson, Bengt Lindoff
  • METHODS FOR EFFICIENT USE OF UNLICENSED SPECTRUM
    Publication number: 20210243804
    Abstract: Systems and methods for efficient use of unlicensed spectrum are disclosed. In some embodiments, a method performed by a transmitter comprises performing a Listen-Before-Talk (LBT) procedure for a channels within a transmit bandwidth of the transmit node, where the transmit bandwidth is divided into a bandwidth parts that correspond to the channels. The method further comprises transmitting a transmission in a subset of the bandwidth parts that correspond to a subset of the channels determined, based on a result of the LBT procedure, to be available. Transmitting the transmission comprises transmitting the transmission in accordance with a transmit scheme that uses carrier aggregation and/or carrier merging to transmit the transmission on the subset of the bandwidth parts and uses resources in one or more guard bands between two or more adjacent bandwidth parts from among the subset of the bandwidth parts.
    Type: Application
    Filed: February 4, 2021
    Publication date: August 5, 2021
    Inventors: Tai Do, Peter Alriksson, Thomas Nilsson
  • Measurement Configuration for Unlicensed Operations
    Publication number: 20210235340
    Abstract: Embodiments include methods for a user equipment to perform measurements on a plurality of target cells in a radio access network. Embodiments include receiving a measurement configuration relating to one or more radio resource operations and comprising first and second sets of conditions related to respective first and second target cells; and performing measurements of radio signals associated with the first target cell and/or the second target cell. Embodiments also include performing a radio resource operation toward the first target cell, based on a first determination that the measurements of the radio signals associated with the first target cell fulfill at least one condition of the first set. Embodiments also include performing the radio resource operation toward the second target cell, based on a second determination that the measurements of the radio signals associated with the second target cell fulfill at least one condition of the second set.
    Type: Application
    Filed: May 17, 2019
    Publication date: July 29, 2021
    Inventors: Reza Moosavi, Marco Belleschi, Mattias Bergström, Peter Alriksson, Robert Karlsson
  • Network node, a first communications device and methods therein for monitoring of an information signal in monitoring time periods of different time durations
    Patent number: 11044779
    Abstract: A network node and a method therein for configuring a first communications device to monitor reception of an information signal in monitoring time periods of different time durations. One monitoring time period being relatively shorter than another, longer monitoring time period. The information signal is repeatedly transmitted by a Radio Network Node (RNN) with a first periodicity during the longer monitoring time period and with a second periodicity during the shorter monitoring time period, the first periodicity being longer than the second periodicity. The network node determines that the first communications device is to be configured for monitoring reception of the information signal within one or more shorter monitoring time periods. Further, the network node configures the first communications device with a Discontinuous Reception cycle indicating a monitoring time point falling within the one or more shorter monitoring time periods.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: June 22, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Magnus Astrom, Peter Alriksson, Andres Reial
  • INTERLACE HOPPING IN UNLICENSED BAND
    Publication number: 20210176023
    Abstract: Methods and arrangements for determining a next interlace having a next structure to be applied during a next transmission interval in an unlicensed spectrum are disclosed. The next structure is to be applied for a transmission over a wireless interface in a wireless communications network operating in an unlicensed spectrum, wherein a first interlace is applied during transmission in a first transmission interval and wherein the first interlace has a first interlace structure formed by a plurality of physical resource blocks, PRBs, that are arranged with a given subcarrier spacing in one of a set of interlaces. The method includes defining a frequency shift based on the number of PRBs per interlace and a maximum allowed power for a single interlace and determining the next interlace structure by shifting the first interlace structure by the defined frequency shift.
    Type: Application
    Filed: April 6, 2018
    Publication date: June 10, 2021
    Inventors: Thomas NILSSON, Peter ALRIKSSON, Jung-Fu CHENG, Tai DO
  • MEASUREMENTS FOR FREQUENCY HOPPING SYSTEMS
    Publication number: 20210159940
    Abstract: A method (1100) in a wireless device (110) comprises identifying (1104) a configuration of a coordinated measurement occasion. The method comprises, during the coordinated measurement occasion (530, 630, 710, 830, 930), performing (1108) one or more measurements with respect to a plurality of reference signals transmitted from different cells (125, 515, 520, 525, 615, 620, 625, 715, 720, 725, 815, 820, 825, 915, 920, 925), in accordance with the identified configuration, wherein: each of the different cells is associated with at least one of the plurality of reference signals; and the configuration defines a common time interval and one or more common frequencies for the different cells to transmit their respective associated reference signal during the coordinated measurement occasion.
    Type: Application
    Filed: December 7, 2017
    Publication date: May 27, 2021
    Inventors: Oskar Drugge, Emma Wittenmark, David Sugirtharaj, Peter Alriksson, Yusheng Liu
  • Devices and methods for scheduling data transmissions in a wireless communication system
    Patent number: 11012996
    Abstract: Embodiments herein relate to a method performed by a transmitting device for handling communication of data towards a receiving device in a wireless communications network. The transmitting device schedules a data transmission of a data burst in at least one sub-slot of a first slot, and in a second slot, wherein the at least one sub-slot differs in time length compared to the second slot. The transmitting device further transmits at least part of the at least part of the data transmission as scheduled by scrambling the data transmission independent of a transmission time of the at least part of the data transmission.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: May 18, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Reem Karaki, Peter Alriksson, Jung-Fu Cheng, Gen Li, Amitav Mukherjee
  • 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