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).

  • Inter-Band Handover of the Same Physical Frequency
    Publication number: 20210120467
    Abstract: A method of an access network node of a carrier aggregation enabled cellular wireless communication system, and a method of a wireless terminal device of a carrier aggregation enabled cellular wireless communication system are disclosed. The method for the network node comprises identifying a need for an inter-band handover where a same physical frequency on which the access network node interacts with a wireless terminal device has more than one logical reference, wherein the wireless terminal device currently operates using a first logical reference, assigning a target frequency for the inter-band handover as a second logical reference for the physical frequency, and performing handover signalling with the wireless terminal device including the assigned target frequency.
    Type: Application
    Filed: December 28, 2020
    Publication date: April 22, 2021
    Inventors: Peter Alriksson, Maria Ulander
  • Detection of potential system reference conflicts
    Patent number: 10939363
    Abstract: The disclosure relates to methods, devices, and computer programs in mobile communications for detecting potential system information reference conflicts. In particular, the present disclosure relates to a method (20), performed in a wireless device, for detecting potential system information reference conflicts. The method comprises receiving (S21) first access information from a network node of a first wireless network, the first access information comprising a first system information reference and a first identifier relating to the first wireless network. The method also comprises determining (S23) a potential system information reference conflict based on a comparison of the first access information and second access information. The second access information is received from the first or a second wireless network; and comprises a second system information reference and a second identifier relating to the wireless network from which the second access information is received.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: March 2, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Peter Alriksson, Erik Eriksson, Pål Frenger, Johan Rune
  • 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
  • Methods for efficient use of unlicensed spectrum
    Patent number: 10932293
    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: Grant
    Filed: December 19, 2018
    Date of Patent: February 23, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Tai Do, Peter Alriksson, Thomas Nilsson
  • Inter-band handover of the same physical frequency
    Patent number: 10880794
    Abstract: A method of an access network node of a carrier aggregation enabled cellular wireless communication system, and a method of a wireless terminal device of a carrier aggregation enabled cellular wireless communication system are disclosed. The method for the network node comprises identifying a need for an inter-band handover where a same physical frequency on which the access network node interacts with a wireless terminal device has more than one logical reference, wherein the wireless terminal device currently operates using a first logical reference, assigning a target frequency for the inter-band handover as a second logical reference for the physical frequency, and performing handover signalling with the wireless terminal device including the assigned target frequency.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: December 29, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Peter Alriksson, Maria Ulander
  • CHANNEL RESERVATION FOR MULTIPLE WIRELESS DEVICES
    Publication number: 20200389821
    Abstract: A network node of a wireless communication network transmits a channel reservation request message for receipt by multiple wireless devices and monitors for response to the channel reservation request message. The channel reservation request message comprises information based upon which at least two wireless devices can be identified, and information defining one or more transmission opportunities for the at least two wireless devices. The transmission opportunities are reserved for transmitting responses to the channel reservation request message to the network node. Monitoring for response to the channel reservation request message involves checking for responses from the at least two wireless devices.
    Type: Application
    Filed: January 18, 2019
    Publication date: December 10, 2020
    Inventors: Gen Li, Reem Karaki, Peter Alriksson, Tai Do
  • User equipment and method for estimating and updating a timing of a cell in a wireless communications network
    Patent number: 10856246
    Abstract: A method in a user equipment for updating a timing of a first cell is provided. The timing is the arrival time of a signal sent from a base station in the first cell relative to a clock in the user equipment in a wireless communication network. The user equipment measures a timing offset for the first cell and respective one or more second cells. When a quality of the timing offset measurement of the first cell is below a first threshold, the user equipment computes a timing offset estimate for the first cell based on the measured timing offset for the respective one or more second cells. The user equipment then updates the timing of the first cell based on the computed timing offset estimate.
    Type: Grant
    Filed: January 20, 2019
    Date of Patent: December 1, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Peter Alriksson, Robert Wolfgang Klang
  • Apparatus and method for periodic high priority transmission aligned scheduling
    Patent number: 10849049
    Abstract: A method implemented in a network node for transmitting data to a wireless device, wherein the data is time aligned with a periodic high priority transmission. The method includes defining a zone prior to the occasion of the periodic high priority transmission where data packets could be aligned, identifying suitable data packets to schedule in the zone prior to the periodic high priority transmission, performing a clear channel assessment (CCA), and transmitting the periodic high priority transmission and potentially the data packets. A related arrangement and computer program product is also described.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: November 24, 2020
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventors: David Sugirtharaj, Peter Alriksson, Emma Wittenmark
  • Uplink Transmission Scheme
    Publication number: 20200351923
    Abstract: A method in a wireless device for performing an uplink transmission to a base station in a wireless access system, wherein the wireless access system comprises one or more mini-slot configurations, the method comprising performing a clear channel assessment for identifying a transmission opportunity and determining the start of a mini-slots. The wireless device performing an uplink transmission within the determined mini-slot wherein the transmission is performed according to a predetermined configuration for mini-slot communication between the base station and the wireless device, such that the base station can identify the start of the uplink transmission.
    Type: Application
    Filed: November 17, 2017
    Publication date: November 5, 2020
    Inventors: Reem KARAKI, Peter ALRIKSSON, Jung-Fu CHENG, Gen LI, Amitav MUKHERJEE
  • Efficient Link Adaptation in Unlicensed Spectrum
    Publication number: 20200305170
    Abstract: A base station (11) of a wireless cellular communication network operating in unlicensed spectrum adjusts (118) the robustness of a downlink transmission in response to the power level of any interference encountered in the channel and the source of the interference. The base station (11) estimates (110) whether the source of interference encountered is a eLAA or WLAN network (110). An offset to a transmission format—a measure of transmission robustness to noise and interference—is calculated (112) in response to the interference power level and the source of the interference. An initial transmission format is adjusted (118) by the offset, and data are transmitted (120) to a UE using the adjusted transmission format. In other embodiments, the base station (11) may compare its interference to that detected by the target UE, to ascertain whether the two likely have the same source.
    Type: Application
    Filed: September 20, 2017
    Publication date: September 24, 2020
    Inventors: Thomas Nilsson, Peter Alriksson, Fredrik Nordström
  • Method and apparatus for shaping output power spectrum within a total bandwidth
    Patent number: 10785732
    Abstract: A network node (840) and method therein for shaping an output power spectrum of a signal (920) to be transmitted in a wireless communications network are disclosed. The signal (920) is transmitted within a total frequency range or bandwidth comprising a first frequency bandwidth and a second frequency bandwidth. The network node increases or boosts a power of the signal (920) in a part of a first frequency bandwidth and/or decreases/deboosts a power of the signal (920) in a part of the total bandwidth outside the first frequency bandwidth. The network node then transmits the partly increased and/or decreased signal (920) to a wireless communication device (850) operating in the wireless communications network.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: September 22, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Torgny Palenius, Peter Alriksson, Christian Bergljung, Maomao Chen
  • NETWORK NODE, METHOD AND COMPUTER PROGRAM FOR UNLICENSED SPECTRUM OPERATION
    Publication number: 20200296591
    Abstract: A network node is arranged to provide communication at least in an unlicensed band where clear channel assessment, CCA, is required before transmissions. The unlicensed band comprises a plurality of carriers, or sets of carriers, defining channels.
    Type: Application
    Filed: December 19, 2018
    Publication date: September 17, 2020
    Inventors: Peter Alriksson, Tai DO, Reem Karaki, Thomas Nilsson
  • Discovery signal measurement timing configuration for SCells in asynchronous networks
    Patent number: 10757697
    Abstract: Systems and methods relating to Discovery Signal Measurement Timing Configuration (DMTC) are disclosed. In some embodiments, a method of operating a radio access node in a cellular communications network having a primary cell and a secondary cell, comprises sending, to a wireless device, a DMTC for one of a group consisting of: (a) the secondary cell configured for the wireless device such that the DMTC is a specific DMTC for the secondary cell; and (b) the primary cell and additional cells that are configurable as secondary cells such that the DMTC applies to both the primary cell and the additional cells when configured as secondary cells. Related radio access nodes and wireless devices are also disclosed.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: August 25, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Emma Wittenmark, Peter Alriksson, David Sugirtharaj, Mai-Anh Phan
  • MULTIPLEXING OF DIFFERENT TRAFFIC TYPES IN A TELECOMMUNICATIONS NETWORK
    Publication number: 20200228230
    Abstract: Methods and systems for multiplexing of different traffic types in a telecommunications network are provided. According to one aspect, a method of operation of a network node comprises: determining that data is available for a Downlink (DL) transmission of a first traffic type to a User Equipment (UE); identifying a DL transmission of a second traffic type to be punctured; transmitting the DL transmission of the first traffic type by puncturing the identified DL transmission of the second traffic type; receiving a Hybrid Automatic Repeat Request (HARQ) Negative Acknowledgement (NACK) associated with the punctured DL transmission of the second traffic type; and excluding the HARQ NACK associated with the punctured DL transmission of the second traffic type from a DL Contention Window Size (CWS) adjustment operation of the network node.
    Type: Application
    Filed: June 21, 2018
    Publication date: July 16, 2020
    Inventors: Amitav Mukherjee, Peter Alriksson
  • Maximum communication distance range adaptation
    Patent number: 10701643
    Abstract: A method for a network node of a wireless communication network is disclosed. The network node is adapted to communicate with wireless communication devices of a first type associated with a first maximum communication distance range and with wireless communication devices of a second type associated with a second maximum communication distance range, the first maximum communication distance range being greater than second maximum communication distance range.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: June 30, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Oskar Drugge, Peter Alriksson, Emma Wittenmark, David Sugirtharaj, Yusheng Liu
  • Network node, method and computer program product for scheduling of paging messages with respect to discovery signal transmissions
    Patent number: 10701565
    Abstract: A network node for wireless access is operating in a cellular network for an unlicensed frequency band and arranged for serving wireless devices in the unlicensed frequency band. The serving of the wireless devices in the unlicensed band relies on making a clear channel assessment in the unlicensed band for ascertaining that the unlicensed band is currently not occupied by other transmissions and when not occupied commencing transmission. Upon commencing the transmission, the network node is arranged to attempt scheduling a paging message together with a message providing a discovery signal and determine whether the transmission of the discovery signal and the paging message use the same subframe scrambling code, and if they do, transmit the paging message and the discovery signal in the same subframe. A method and computer program for the network node are also disclosed.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: June 30, 2020
    Inventors: David Sugirtharaj, Peter Alriksson, Mai-Anh Phan, Emma Wittenmark
  • Radio link monitoring in listen-before-talk communications
    Patent number: 10694410
    Abstract: In one aspect, a wireless device monitors radio link quality for a link between the wireless device and a wireless transmitter that is configured to transmit a discovery signal at spaced, periodic, intervals and that is further configured to intermittently transmit subframes carrying user data, such that the wireless device is unable to predict which subframes will carry user data before attempting to detect the subframes. The wireless device collects, for each of the spaced, periodic, intervals, discovery-signal signal quality metrics corresponding to the discovery signal. The wireless device also collects, for each detected subframe carrying user data, detected-subframe signal quality metrics corresponding to the detected subframe.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: June 23, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Peter Alriksson, Mai-Anh Phan, David Sugirtharaj, Emma Wittenmark
  • HANDOVER DELAY REDUCTION METHOD, WIRELESS COMMUNICATION DEVICE, AND COMPUTER PROGRAM
    Publication number: 20200196207
    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: Application
    Filed: June 13, 2018
    Publication date: June 18, 2020
    Inventors: Chunhui ZHANG, Peter ALRIKSSON, Yusheng LIU, Mai-Anh PHAN, David SUGIRTHARAJ, Emma WITTENMARK
  • IMPROVED CONTROL CHANNEL MONITORING
    Publication number: 20200187204
    Abstract: A method for use in a User Equipment configured to operate according to the New Radio (5G) standard, said method comprising: monitoring a control region for mini-slots for a transmission; detecting a start of the transmission; monitoring a control region of said transmission for regular slots; detecting that the transmission has ended; and in response thereto monitoring the control region for mini-slots again.
    Type: Application
    Filed: July 12, 2018
    Publication date: June 11, 2020
    Inventors: Peter Alriksson, Tai Do, Reem Karaki, Gen LI, Amitav Mukherjee, Yu Yang
  • In-flight cellular communications system coverage of mobile communications equipment located in aircraft
    Patent number: 10667197
    Abstract: A network node of a terrestrial cellular system provides telecommunications service to a user equipment (UE) in an airborne aircraft. Navigation information transmitted from the aircraft is periodically acquired, including aircraft identity, position, altitude, and a time of determining aircraft position. A link is maintained between the network node and the UE by transmitting beam steered, Doppler shift compensated downlink signals, and by performing beam steered reception of uplink signals. Beam steering is directed toward the aircraft based on the navigation information. Doppler shift compensation is adapted to compensate for a Doppler shift such that the UE experiences a nominal carrier frequency when receiving transmissions from the antenna nodes. Handover from a first to a second coverage area includes using a same cell identifier and a same frequency allocation in the second coverage area as are used in the first.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: May 26, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Joakim Axmon, Peter Alriksson, Bjorn Ekelund, Bengt Lindoff