Patents by Inventor Magnus Stattin

Magnus Stattin 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: 10931409
    Abstract: Systems and methods for determining configurable timing relationships and operational parameters are provided. In some embodiments, a method of operation of a wireless device in a wireless system includes determining round-trip propagation delay information between the wireless device and a network node. This round-trip propagation delay information may be a round-trip propagation delay a quantized round-trip propagation delay, or any other value indicative of the round-trip propagation delay. The in method also includes determining a Hybrid Automatic Retransmission Request (HARQ) operational parameter based on the round-trip propagation delay information between the wireless device and the network node. In this way, HARQ is extended to work for deployments with large round-trip propagation delays, such as satellite systems. This may increase the throughput and reliability of data transmission.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: February 23, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Xingqin Lin, Ansuman Adhikary, Ali S. Khayrallah, Mikael Prytz, Magnus Stattin, Yi-Pin Eric Wang
  • Publication number: 20210045162
    Abstract: A base station (110)transmits system information that indicates to a wireless device (120) that the wireless device (120) is permitted to transmit respective blocks stored at the wireless device (120) during and after a random access procedure (200). The wireless device (120) performs the random access procedure (200) to the base station (110). The wireless device (120) transmits a first block of data stored at the wireless device (120) to the base station (110) during the random access procedure (200) while withholding a second block of data stored at the wireless device (120) from transmission to the base station (110) until after completion of the random access procedure (200). The base station (110), receives the blocks of data during and after the random access procedure (200), respectively.
    Type: Application
    Filed: March 26, 2019
    Publication date: February 11, 2021
    Inventors: Andreas Höglund, Dung Pham Van, Magnus Stattin, Tuomas Tirronen, Emre Yavuz
  • Patent number: 10912063
    Abstract: The present invention relates to a radio node (212), a wireless device (220) and methods performed by the radio node (212) and the wireless device (220) for communicating in a wireless communication system (200). The wireless device (220) is configured with cells on at least two component carriers, CCs, available to the wireless communication system (200) for communication with the wireless device (220). Each one of the at least two CCs is associated with at least one CC group out of a set of CC groups. The radio node (212) transmits control information to the wireless device (220)indicating a CC group. The transmitted control information applies to at least one CC, which at least one CC is at least one of those CCs, out of the at least two CCs, that are associated with the indicated CC group.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: February 2, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stefan Parkvall, Jung-Fu Cheng, Christian Hoymann, Daniel Larsson, Magnus Stattin
  • Patent number: 10912001
    Abstract: Mobile devices, network nodes and methods of operating the same According to one aspect, there is provided a method of operating a mobile device that is configured for use in a first radio access network that uses a first radio access technology and a second radio access network that uses a second, different, radio access technology, the mobile device aggregating a plurality of carriers in the first radio access network, the method comprising obtaining information for, or pertaining to, one or more of the plurality of carriers in the first radio access network (101); and processing the obtained information for a single carrier to determine an action for the mobile device to take with respect to the second radio access network (103).
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: February 2, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mattias Tan Bergström, Gunnar Mildh, Magnus Stattin, Oumer Teyeb
  • Patent number: 10912127
    Abstract: The present invention relates to methods and apparatuses (radio base station) and UE for enabling a UE to perform a random access. According to embodiments of the present invention, an identification number of a dedicated random access preamble is, in a message, transmitted together with information indicating in which channel or channels the preamble is valid for the UE. The UE can then use the received information and based on that information perform a random access.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: February 2, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Michael Meyer, Magnus Stattin
  • Patent number: 10904911
    Abstract: A method in a user equipment for requesting that a base station schedule the user equipment for an uplink data transmission to the base station is provided. The user equipment comprises a buffer. Directly or indirectly responsive to receiving data into the buffer to be transmitted to the base station, the user equipment generates a scheduling request trigger. The scheduling request trigger is configured to trigger the sending of a scheduling request to the base station if the trigger is pending at the next scheduling request opportunity, and to remain pending until it is cancelled. The user equipment cancels the pending scheduling request trigger when the data is accounted for in a buffer status report, which reports the size of the buffer to the base station, or when the data is included directly in a scheduled uplink data transmission whichever occurs first.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: January 26, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Jessica Östergaard, Magnus Stattin, Ghyslain Pelletier
  • Patent number: 10904925
    Abstract: A method (800) in a network node (115) comprises reserving (804), within a Narrowband Physical Random Access Channel (NPRACH) resource (305, 405, 505, 605, 705) comprising a plurality of start subcarriers, a subset of the plurality of start subcarriers for performing a contention-free random access procedure (310, 410, 520, 530, 610, 720, 730). The method comprises communicating (804), to one or more user equipment (UEs) (110), information indicating which of the plurality of start subcarriers within the NPRACH resource are reserved for performing the contention-free random access procedure.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: January 26, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Béla Rathonyi, Magnus Stattin
  • Publication number: 20210014687
    Abstract: Methods, User Equipment, UE, (120) and source network node (111) for re-establishing a Radio Resource Control, RRC, connection to a target cell in a wireless communications network (100), The UE generates a security token using a set of input parameters, and sends a re-establishment request with the security token to a target network node (112) serving the target cell. When receiving the re-establishment request, the source network node generates a security token using a set of input parameters in the same manner as the UE.
    Type: Application
    Filed: March 1, 2019
    Publication date: January 14, 2021
    Inventors: Oscar Ohlsson, Icaro L. J. da Silva, Gunnar Mildh, Magnus Stattin
  • Patent number: 10880947
    Abstract: Methods and apparatuses are disclosed for setting a processing time for a wireless device, WD, to respond to a radio resource control, RRC, connection resume message are disclosed. According to one aspect, a method in a base station includes determining when short processing time conditions exist in relation to the establishment or reconfiguration of the RRC connection for the WD; when short processing time conditions exist, sending to the WD a message indicating a short processing time; and when short processing time conditions do not exist, sending to the WD a message indicating a legacy processing time.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: December 29, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Gustav Wikström, Magnus Stattin
  • Publication number: 20200404493
    Abstract: According to an exemplary embodiment, there is provided a method of operating a terminal device. The method includes operating the terminal device in a connected state with respect to the communication network. The method further includes receiving a first signal from a first radio access node in the communication network indicating that the connected state is to be suspended, the first signal having information for use in determining a first key for encrypting data to be sent between the terminal device and the first radio access node or another radio access node in the communication network if the connected state is resumed.
    Type: Application
    Filed: September 2, 2020
    Publication date: December 24, 2020
    Inventors: Oscar OHLSSON, Karl NORRMAN, Paul SCHLIWA-BERTLING, Magnus STATTIN
  • Patent number: 10841900
    Abstract: There is provided a method for use in a user equipment when the user equipment is in idle mode or any other low activity state, and when the user equipment bandwidth is smaller than the cell transmission bandwidth. The method comprises the steps of determining a paging position of the user equipment in the frequency domain; receiving, from the network, paging information within the user equipment reception bandwidth; and changing, if indicated by the network, the paging position of the user equipment within the cell transmission bandwidth.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: November 17, 2020
    Assignee: IDTP Holdings, Inc.
    Inventors: Muhammad Kazmi, Robert Baldemair, Magnus Stattin
  • Publication number: 20200359347
    Abstract: A method for use in a user terminal in a cellular communications system. According to the method, the user terminal applies a first timing advance value to its transmissions to a controlling node, and the user terminal requests communication with the controlling node in a contention based procedure by transmitting an access request (MSG 1), in response to which the controlling node transmits an initiation message (MSG 2) along with a second timing advance value. According to the method, the user terminal uses the first timing advance value if the user terminal loses the contention based procedure, i.e. if the controlling node subsequently continues the initiated communication with said other user terminal.
    Type: Application
    Filed: July 30, 2020
    Publication date: November 12, 2020
    Inventors: Tobias Tynderfeldt, Magnus Stattin
  • Publication number: 20200351972
    Abstract: Embodiments include methods for a wireless terminal (UE) configured to operate in a wireless communication network that includes a base station. Such methods include transmitting, to the base station, a request to resume a suspended connection with the wireless communication network; and subsequently receiving, from the base station, a connection resume message. Such methods also include performing configuration of the connection based on the connection resume message, including changing a security key previously used for the connection before the connection was suspended. Such methods also include resuming a suspended radio bearer associated with the connection and selectively transmitting, to the base station, a connection resume complete message. Other embodiments include complementary methods for a base station, as well as wireless terminals (UEs) and base stations configured to perform such methods.
    Type: Application
    Filed: July 23, 2020
    Publication date: November 5, 2020
    Inventors: Magnus Stattin, Stefan Wänstedt
  • Publication number: 20200344650
    Abstract: A network node, a wireless device and methods performed thereby for use in a Random Access, RA, procedure with wireless devices in a cell of the network node are provided. The method includes receiving, from at least two wireless devices, a RA message comprising an RA preamble; transmitting an RA Response, RAR, to the at least two wireless devices, the RAR comprising a TC-RNTI and an RA preamble identifier identifying the received RA preamble; and receiving, from each of said at least two wireless devices, a connection request message comprising a respective S-TMSI. The method includes for a wireless device previously connected to the network node in the same cell, transmitting a connection setup message addressed to a C-RNTI previously assigned to the wireless device; and for a wireless device not previously connected to the network node in the same cell, transmitting, a connection setup message addressed to the TC-RNTI.
    Type: Application
    Filed: July 13, 2020
    Publication date: October 29, 2020
    Inventors: Johnny KAROUT, Johan RUNE, Magnus STATTIN
  • Patent number: 10805795
    Abstract: According to an exemplary embodiment, there is provided a method of operating a terminal device. The method includes operating the terminal device in a connected state with respect to the communication network. The method further includes receiving a first signal from a first radio access node in the communication network indicating that the connected state is to be suspended, the first signal including information for use in determining a first key for encrypting data to be sent between the terminal device and one of the first radio access node and another radio access node in the communication network if the connected state is resumed.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: October 13, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Oscar Ohlsson, Karl Norrman, Paul Schliwa-Bertling, Magnus Stattin
  • Publication number: 20200288319
    Abstract: A method is provided for use in a wireless device. The method comprises determining a connection request and uplink data to transmit in response to a random-access response received from a network node. The method further comprises generating security information based at least in part on the uplink data. The method further comprises transmitting a radio transmission in response to the random-access response. The radio transmission comprises the connection request and the uplink data secured by the security information.
    Type: Application
    Filed: September 28, 2018
    Publication date: September 10, 2020
    Inventors: Dung PHAM VAN, Magnus STATTIN, Andreas HÖGLUND, Tuomas TIRRONEN, Emre YAVUZ, Vesa LEHTOVIRTA
  • Patent number: 10764953
    Abstract: Methods of operating a wireless terminal in a wireless communication network are discussed. A connection resume request may be transmitted from the wireless terminal to a base station of the wireless communication network. After transmitting the connection resume request, a connection resume message may be received at the wireless terminal from the base station. Responsive to receiving the connection resume message, reconfiguration of a connection with the base station may be performed, a security key for the connection with the base station may be provided, and a radio bearer may be resumed. After resuming the radio bearer, uplink data may be transmitted using the radio bearer. Related base station methods, network nodes, and wireless terminals are also discussed.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: September 1, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Magnus Stattin, Stefan Wänstedt
  • Patent number: 10764796
    Abstract: A network node, a wireless device and methods for use in a Random Access, RA, procedure with wireless devices in a cell of the network node. The method of the network node comprises receiving, from at least two wireless devices, a RA message having an RA preamble; transmitting an RA Response, RAR, to the wireless devices, the RAR having a TC-RNTI and an RA preamble identifier identifying the received RA preamble; and receiving, from each of wireless the devices, a connection request message having a respective S-TMSI. For a wireless device previously connected to the network node in the same cell, a connection setup message addressed to a C-RNTI previously assigned to the wireless device is transmitted. For a wireless device not previously connected to the network node in the same cell, a connection setup message addressed to the TC-RNTI is transmitted.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: September 1, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Johnny Karout, Johan Rune, Magnus Stattin
  • Patent number: 10757749
    Abstract: In one embodiment, a method in a wireless device for radio resource control (“RRC”) connectivity includes transmitting a RRC connection request message to a network node, wherein the RRC connection request message is part of a first RRC connection protocol. The method may also include receiving a responsive message from the network node, wherein the response message is part of the first RRC connection protocol. The method may further include receiving an indication that the wireless device should suppress a RRC connection complete message that is part of the first RRC connection protocol. The method may further include determining that the RRC connection complete message should not be transmitted to the network node and suppressing the transmittal of the RRC connection complete message to the network node.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: August 25, 2020
    Assignee: TELEFONAKIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Magnus Stattin, Riikka Susitaival, Béla Rathonyi, Mark Curran
  • Patent number: 10750361
    Abstract: A basestation in a cellular communications network is operable to send a message to a Mobility Management Entity, relating to a suspension or resumption of a connection of a UE, wherein the message contains key renewal information. The Mobility Management Entity receives the message, and determines whether a key renewal condition is met. If the key renewal condition is met, the MME forwards a new NH, NCC pair to the base station. If a message received from the MME includes a NH, NCC pair, the basestation derives keying information using the NH, NCC pair for future use in deriving keys.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: August 18, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Vesa Lehtovirta, Noamen Ben Henda, Lars-Bertil Olsson, Paul Schliwa-Bertling, Magnus Stattin, Vesa Torvinen, Monica Wifvesson