Patents by Inventor Johan Bergman

Johan Bergman 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: 12362973
    Abstract: Embodiments herein disclose e.g. a method performed by a wireless device (10) for handling communication for the wireless device in a second wireless communication network. The second wireless communication network coexists with a first wireless communication network on a same bandwidth in frequency, wherein the first wireless communication network applies a first shift in frequency in uplink transmissions. The wireless device receives from a radio network node (12, 13), an indication indicating application of a second shift in frequency to uplink transmissions in case the second wireless communication network uses Frequency Division Duplex (FDD). The wireless device further applies the second shift in frequency to uplink transmissions, wherein the second shift defines a shift in frequency to a subcarrier relative to a subcarrier grid of the second wireless communication network or a shift in frequency to the subcarrier grid of the second wireless communication network.
    Type: Grant
    Filed: January 12, 2024
    Date of Patent: July 15, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Robert Baldemair, Johan Bergman, Erik Dahlman, Olof Liberg, Stefan Parkvall, Yi-Pin Eric Wang
  • Patent number: 12363743
    Abstract: A method performed by a wireless device, UE, for configuring a semi-persistent scheduling, SPS is described. In accordance with the method, the UE may be configured to monitor a first search space of a physical downlink control channel for downlink control information, DCI, dedicated to the UE. The method may include receiving from the communication network SPS configuration data to configure a second search space to be monitored by the UE for DCI to activate or de-activate the SPS, the second search space being smaller than the first search space, and monitoring the second search space to detect the DCI to activate or de-activate the SPS. A corresponding method may be performed by a network node.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: July 15, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Andreas Höglund, Johan Bergman, Ritesh Shreevastav, Yutao Sui, Tuomas Tirronen, Stefan Wänstedt, Emre Yavuz
  • Patent number: 12355600
    Abstract: Systems and methods for selecting subcarriers to be used for sub-Physical Resource Block (PRB) transmission and, in some embodiments, for mapping Demodulation Reference Signals (DMRS) to resources on the selected subcarriers are disclosed. In some embodiments, a method of operation of a radio node for providing sub-PRB transmission comprises selecting two adjacent subcarriers from a set of three allocated subcarriers that are allocated for a sub-PRB transmission that uses Single Carrier Frequency Division Multiple Access (SC-FDMA) Pi/2 Binary Phase Shift Keying (BPSK) modulation using only two adjacent subcarriers out of the set of three allocated subcarriers with Discrete Fourier Transform (DFT) spread length of 2. In some embodiments, the selection is such that the selected adjacent subcarriers varies, e.g., from one cell to another. In doing so, interference is distributed.
    Type: Grant
    Filed: June 29, 2023
    Date of Patent: July 8, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Yi-Pin Eric Wang, Anders K. Eriksson, Johan Bergman, Chunhui Zhang, Gerardo Agni Medina Acosta
  • Patent number: 12336003
    Abstract: A wireless device determines whether to provide a reduced capability, RedCap, indication via a message 1 of a random access procedure. The wireless device transmits the message 1 based on the determination, and transmits a message 3 of the random access procedure. A RedCap indication is provided via the message 3 at least if a RedCap indication is not provided via the message 1. According to some embodiments, the wireless device receives an indication whether the wireless device is to provide a RedCap indication via the message 1, and the determination is based on the received indication. According to some embodiments, the indication whether the wireless device is to provide a RedCap indication via the message 1 is provided by whether a physical random access channel, PRACH, partition between RedCap wireless devices and other wireless devices is configured.
    Type: Grant
    Filed: October 13, 2021
    Date of Patent: June 17, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Andreas Höglund, Tuomas Tirronen, Johan Bergman, Sandeep Narayanan Kadan Veedu, Kittipong Kittichokechai, Yi-Pin Eric Wang, Henrik Enbuske
  • Patent number: 12301510
    Abstract: Systems and methods for handling transmissions and retransmissions on a periodic preconfigured uplink resource (PUR) are provided. Respective resources for transmission and retransmission can be determined and configured for a wireless device to prevent blocking of a new data transmission on a PUR opportunity by a retransmission attempt. Responsive to determining that a first transmission on the PUR was unsuccessful, a second resource can be configured for the retransmission.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: May 13, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Gerardo Agni Medina Acosta, Sandeep Narayanan Kadan Veedu, Andreas Höglund, Dung Pham Van, Johan Bergman, Emre Yavuz
  • Patent number: 12302220
    Abstract: A method is performed by a wireless device for early data transmission. The method comprises receiving a broadcast from a network node. The broadcast indicates a maximum transport block size for early data transmission and a number of transport block size candidates. The method further comprises selecting a transport block size for early data transmission. The transport block size is selected based on a table entry that corresponds to the maximum transport block size and the number of transport block size candidates. The method further comprises transmitting uplink data in one or more transport blocks. Each transport block has the selected transport block size.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: May 13, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Andreas Höglund, Johan Bergman, Yutao Sui
  • Patent number: 12225413
    Abstract: A method and network node for flexible indication of resources in LTE-M using bitmaps are disclosed. According to one aspect, a method includes indicating to the wireless device a set of reserved resources for machine communications in compatibility with a broadband radio access technology sharing resources in a time frame and frequency band that encompasses the set of reserved resources, the indicating using a two level bitmap operating in the time-domain, a first bitmap level of the two level bitmap indicating a first set of subframes containing reserved resources, and a second bitmap level of the two level bitmap indicating reserved symbols within an indicated subframe.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: February 11, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mohammad Mozaffari, Johan Bergman, Anders Wallén, Mattias Frenne
  • Patent number: 12219570
    Abstract: Systems and methods for specifying content of carrier measurement reports in a cellular communication system are disclosed. Embodiments of a method performed by a wireless device are disclosed. In some embodiments, the method performed by the wireless device includes transmitting a random access preamble, receiving, from a base station, a random access response, and transmitting, to the base station, a Msg3 comprising one or more quality reports for one or more carriers or narrowbands, each of the one or more quality reports comprising at least one of a value that is indicative of a number of repetitions to be used for physical downlink control channel transmissions to the wireless device on the one or more carriers or narrowbands and an aggregation level. Some embodiments include transmitting, to a base station, an uplink message including the one or more quality reports for the one or more carriers or narrowbands.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: February 4, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Luca Feltrin, Dung Pham Van, Johan Bergman, Ritesh Shreevastav
  • Patent number: 12206493
    Abstract: According to some embodiments, a method performed by a wireless device operating in connected mode for reporting channel quality comprise: determining that aperiodic channel quality reporting has been triggered for the wireless device and transmitting a downlink channel quality report to a network node. A channel quality in the report is represented by a number of repetitions used to receive a channel. In particular embodiments, the number of repetitions comprises a number of repetitions used to receive a machine type communication (MTC) physical downlink control channel (MPDCCH) or a narrowband Internet-of-things (NB-IoT) physical downlink control channel (NPDCCH).
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: January 21, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Johan Bergman, Ritesh Shreevastav, Kazuyoshi Uesaka, Luca Feltrin, Yutao Sui
  • Patent number: 12207310
    Abstract: A method of operating a wireless terminal may include transmitting a random access preamble of a random access procedure from the wireless terminal to a node of a radio access network. After transmitting the random access preamble, a random access response of the random access procedure may be received from the node of the radio access network, with the random access response including an Uplink grant for a Message 3 uplink communication of the random access procedure. The UL grant may include a time domain configuration associated with the Message 3 uplink communication. The time domain configuration may include a repetition factor that defines a number of repetitions across subframes for the Message 3 uplink communication, and/or Transmission Time Interval information for the Message 3 uplink communication. Related wireless terminals and base stations are also discussed.
    Type: Grant
    Filed: December 7, 2022
    Date of Patent: January 21, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Tuomas Tirronen, Yufei Blankenship, Johan Bergman, Emre Yavuz
  • Patent number: 12200714
    Abstract: A method, system and apparatus are disclosed. A network node configured to communicate with a wireless device (WD) is provided. The network node is configured to, and/or includes a radio interface and/or includes processing circuitry configured to transmit a downlink control information (DCI) to the wireless device where the DCI is configured to schedule a plurality of transport blocks (TBs) where the DCI including at least one parameter that is configured to be applied to the plurality of TBs, and perform communications based on the transmitted DCI.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: January 14, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Johan Bergman, Anders K Eriksson, Stefan Wänstedt, Yutao Sui
  • Patent number: 12170970
    Abstract: Embodiments include methods, performed by a network node in a wireless network, for signaling resynchronization signal (RSS) configurations of neighbor cells to one or more user equipment (UEs). Such methods include encoding a plurality of parameters of respective RSS configurations of one or more neighbor cells. For each particular neighbor cell, the parameters can include one or more RSS frequency locations and an RSS time offset for the particular neighbor cell, and the encoding can be based on a bitmap and a parameter associated with the particular neighbor cell (e.g., a physical cell ID). Such methods also include transmitting, to the one or more UEs, at least a portion of the encoded parameters of the respective RSS configurations of the neighbor cells. Embodiments also include complementary methods performed by UEs, as well as network nodes and UEs configured to perform such methods.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: December 17, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Magnus Åström, Ritesh Shreevastav, Stefan Wänstedt, Johan Bergman
  • Publication number: 20240397479
    Abstract: A method performed by a wireless device. The method is for handling a carrier to monitor paging. The wireless device operates in a wireless communications network. The wireless device obtains first information. The first information indicates how to determine a carrier to be used to monitor paging based on a change in coverage due to a change in at least one of: a coverage condition and a cell to camp on. The wireless device then determines the carrier to monitor paging based on the obtained first information.
    Type: Application
    Filed: October 19, 2021
    Publication date: November 28, 2024
    Inventors: Ritesh SHREEVASTAV, Bela RATHONYI, Emre YAVUZ, Johan BERGMAN
  • Patent number: 12114361
    Abstract: Systems and methods for narrowband measurements and reporting in a cellular communications system are disclosed. Embodiments of a method performed by a wireless device are disclosed. In some embodiments, the method performed by the wireless device comprises determining a set of narrowbands on which to perform measurements, wherein the set of narrowbands on which to perform measurements is a subset of all narrowbands within a respective system bandwidth. The method further comprises performing measurements on the set of narrowbands during one or more time periods associated with a random access procedure, and reporting the measurements or information derived from the measurements to a base station within a message sent from the wireless device to the base station during the random access procedure. In some embodiments, the message sent from the wireless device to the base station during the random access procedure is a Msg3.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: October 8, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Luca Feltrin, Dung Pham Van, Kazuyoshi Uesaka, Johan Bergman, Ritesh Shreevastav, Santhan Thangarasa
  • Publication number: 20240284247
    Abstract: A method, system and apparatus are disclosed. A method implemented in a wireless device configured to communicate with a network node is provided. A first indication is received from the network node indicating a first restriction, where the first restriction is related to a maximum data rate computation for at least one carrier and is different from a legacy restriction. A second indication is transmitted to the network node indicating a plurality of capability parameters, where the plurality of capability parameters violates the legacy restriction and is in accordance with the first restriction. The network node is communicated with on the at least one carrier according to a maximum data rate determination associated with the indicated plurality of capability parameters.
    Type: Application
    Filed: August 17, 2022
    Publication date: August 22, 2024
    Inventors: Sandeep Narayanan KADAN VEEDU, Yi-Pin Eric WANG, Johan BERGMAN, Anders WALLÉN, Tuomas TIRRONEN, Andreas HÖGLUND
  • Patent number: 12069743
    Abstract: According to one aspect of the disclosure, a wireless device is configured to transmit a random access preamble. The wireless device includes processing circuitry. The processing circuitry is configured to obtain a tone index, and determine a location within a frequency band for transmitting the random access preamble based on the obtained tone index.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: August 20, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Xingqin Lin, Ansuman Adhikary, Johan Bergman, Yufei Blankenship, Asbjörn Grövlen, Hazhir Shokri Razaghi, Yutao Sui, Yi-Pin Eric Wang
  • Publication number: 20240276376
    Abstract: A method, system and apparatus are disclosed. A network node is provided. The network node is configured to communicate with a wireless device where the network node is configured to, and/or comprising a radio interface and/or comprising processing circuitry configured to receive a first indication indicating that the wireless device is an energy harvesting wireless device and to perform at least one action associated with energy harvesting at the wireless device based at least on the first indication.
    Type: Application
    Filed: June 14, 2022
    Publication date: August 15, 2024
    Inventors: Sandeep Narayanan KADAN VEEDU, Saeedeh MOLOUDI, Kittipong KITTICHOKECHAI, Mohammad MOZAFFARI, Tuomas TIRRONEN, Olof LIBERG, Mattias BERGSTRÖM, Andreas HÖGLUND, Stefan WÄNSTEDT, Sina MALEKI, Yi-Ju CHEN, Yi-Pin Eric WANG, Johan BERGMAN
  • Patent number: 12004153
    Abstract: A method, network nodes and wireless devices for scheduling transmissions over preconfigured uplink resources (PUR) are disclosed. According to one aspect, a method is performed by a network node for scheduling a plurality of wireless devices with periodic preconfigured uplink shared channel resources. The method includes configuring a wireless device of the plurality of wireless devices with preconfigured uplink resources, PURs, the PURs having a transmission length and a periodicity, the PURs being configured based at least in part on one or more multiplexing criteria for multiplexing the plurality of wireless devices for PUR transmission.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: June 4, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Gerardo Agni Medina Acosta, Andreas Höglund, Yutao Sui, Johan Bergman, Emre Yavuz, Sandeep Narayanan Kadan Veedu, Hazhir Shokri Razaghi
  • Patent number: 11997031
    Abstract: A base station and wireless device are configured to support TDD operation. In exemplary embodiments, the base station or UE can make use of the available symbols in the DwPTS or UpPTS of a special subframe respectively for NB-IoT transmissions. In one example, the base station can use OFDM symbols in the DwPTS to repeat in a predetermined manner some of the symbols transmitted in an immediately preceding downlink subframe, or in a succeeding downlink subframe. In other embodiments, the UE can use symbols in the UpPTS to repeat in a predetermined manner some of the symbols transmitted in the immediately succeeding uplink subframe, or in a preceding uplink subframe. The symbols repeated in the special subframe can be coherently combined at the receiver with corresponding symbols transmitted in a downlink or uplink subframe to improve decoding performance, reduce errors, improve channel estimation, and increase system capacity.
    Type: Grant
    Filed: February 22, 2022
    Date of Patent: May 28, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Yutao Sui, Johan Bergman, Xingqin Lin, Gerardo Agni Medina Acosta, Yi-Pin Eric Wang
  • Patent number: 11991529
    Abstract: In one aspect, a method for communicating in a wireless communication network includes transmitting or receiving (402) using an LTE-M carrier within the bandwidth of an NR carrier such that the LTE-M carrier overlaps at least a portion of NR guard band. The transmitting or receiving may be subject to aligning subcarriers in LTE-M and NR on the same grid and subject to raster placement. The LTE-M carrier may be positioned within the NR carrier so as to minimize the number of NR resource blocks occupied by the LTE-M carrier.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: May 21, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mohammad Mozaffari, Yi-Pin Eric Wang, Johan Bergman