Patents Assigned to Telefonaktiebolaget LM Ericsson
  • Patent number: 11985560
    Abstract: Systems, methods, and apparatus for handling messages from network nodes of a wireless communications system are disclosed. An example method performed by a terminal includes receiving a message from a network node. The terminal determines that the message contains a reconfigurationWithSync field and that security is not activated when the message is received. Responsive to the determining, the terminal prevents triggering of a handover operation.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: May 14, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Icaro L. J. Da Silva, Patrik Rugeland
  • Patent number: 11985556
    Abstract: A method performed by a first base station associated with a preferred access network includes initiating a first handover of a wireless device to a second base station associated with a non-preferred access network in response to fulfillment of a condition. Information indicating that the wireless device is subject to a forced access change is transmitted to a second base station associated with the non-preferred access network. The information also indicates that a second handover of the wireless device should be initiated to hand the wireless device back to the first base station or another base station associated with the preferred access network as soon as the condition is no longer fulfilled.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: May 14, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Christer Gustafsson, Ralf Keller
  • Patent number: 11985564
    Abstract: In a method for adapting a mobile network, a terminal is connected to a first access node of the mobile network via a first connection and to a second access node via a second connection. The first access node controls a data transmission for the terminal and the second access node assists in the data transmission for the terminal. The method comprises determining whether a quality of at least one of the first connection and the second connection is degraded, acquiring quality degradation information about the degradation of the quality of at least one of the first connection and the second connection based on the step of determining, and adapting the mobile network based on the step of acquiring.
    Type: Grant
    Filed: December 28, 2022
    Date of Patent: May 14, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Torsten Dudda, Walter Müller, Mattias Bergström, Stefan Wager, Zhiyi Xuan
  • Patent number: 11985496
    Abstract: A network node configured to perform a process that includes receiving a PDU Session Establishment Request message for establishing a PDU session, wherein the PDU Session Establishment Request message was transmitted by a UE and includes a PDU session ID. The process also includes communicating a Session Management (SM) Request comprising the PDU Session Establishment Request to an SMF. The process also includes receiving from the SMF a message that includes: i) the PDU Session ID identifying the PDU session, ii) a PDU Session Establishment Accept message, and iii) a user plane (UP) security policy for the PDU session, wherein the UP security policy for the PDU session indicates: i) whether UP confidentiality protection shall be activated or not for all data radio bearers (DRBs) belonging to the PDU session, and/or ii) whether UP integrity protection shall be activated or not for all data radio bearers (DRBs) belonging to the PDU session.
    Type: Grant
    Filed: March 17, 2023
    Date of Patent: May 14, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Vesa Torvinen, Noamen Ben Henda, Monica Wifvesson
  • Patent number: 11985655
    Abstract: The present disclosure proposes a method, a network element, and a non-transitory computer readable storage medium of scheduling a UL RS resource for an MU-MIMO enabled UE. The method is performed at a network element to schedule a UL RS resource for an MU-MIMO enabled UE. The method comprises: determining whether channel status information for the UE is known or not; assigning a first RS resource from a first RS group to the UE in response to determining that the channel status information for the UE is unknown and that the first RS resource is not assigned to any other UE; and assigning a second RS resource from a second RS group to the UE in response to determining that the channel status information for the UE is known.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: May 14, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Huaisong Zhu, Yanyan Zhu
  • Patent number: 11985555
    Abstract: A method by a user equipment in a wireless communication system includes receiving an access command from a source node, the access command instructing the UE to access a target cell and including an access configuration specifying an access method without random access and one or more valid target cell beams for which the access configuration is valid at the target cell, and accessing the target cell in response to the access command.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: May 14, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Jens Bergqvist, Johan Rune, Oscar Ohlsson
  • Patent number: 11985676
    Abstract: A method by a wireless device (110) is provided for monitoring a physical downlink control channel, PDCCH, for paging messages. While monitoring the PDCCH for paging messages for a group of slots for a duration, the method includes initiating monitoring of one or more first PDCCH monitoring occasions in a first slot according to a first PDCCH monitoring parameter associated with a first monitoring symbol pattern and initiating monitoring of one or more second PDCCH monitoring occasions in a second slot according to a second PDCCH monitoring parameter associated with a second monitoring symbol pattern. The group of slots include at least the first slot and the second slot, and the second slot consecutively follows the first slot. The first monitoring symbol pattern is different from the second monitoring symbol pattern.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: May 14, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventor: Johan Rune
  • Patent number: 11985525
    Abstract: Systems and methods are disclosed herein for handling measurement configurations for a power saving state and/or handling associated measurements, upon receiving a message from a network node while performing measurements in accordance with the measurement configurations while in the power saving state. Embodiments of a method performed by a wireless device in a cellular communications system are disclosed. In some embodiments, a method performed by a wireless device in a cellular communications system includes receiving at least one measurement configuration for a power saving state and performing measurements in the power saving state in accordance with the at least one measurement configuration.
    Type: Grant
    Filed: February 18, 2020
    Date of Patent: May 14, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Icaro Leonardo Da Silva, Patrik Rugeland
  • Patent number: 11985087
    Abstract: Disclosed is a method for synchronizing transmission of signals from antenna reference points, ARP, (121, 122) of a wireless communication network (100). The method comprises initiating transmission of a first synchronization reference signal from a first ARP (121) at a first time point, instructing a second ARP (122) to determine a second time point for reception of the first synchronization reference signal, initiating transmission of a second synchronization reference signal from the second ARP (122) at a third time point, and instructing the first ARP to determine a fourth time point for reception of the second synchronization reference signal. The first and the second synchronization references signals are either transmitted in uplink communication resources available or they are transmitted in downlink communication resources.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: May 14, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Alexandra Mikaelsson, Ari Kangas, Avneesh Vyas, Obada Alhaj Moussa
  • Patent number: 11984977
    Abstract: Methods, systems, and apparatus are provided for encoding code blocks for transmission in a wireless communication system. An example encoding method in a wireless communication system includes determining, for one or more code blocks of a transport block, that at least one of a plurality of criteria is met, wherein the plurality of criteria includes that a coding rate (R) is less than or equal to 1/4 or that a transport block size (TBS) is less than or equal to 3824 bits and the R is less than or equal to 2/3. The one or more code blocks are encoded using low-density parity-check (LDPC) base graph 2, wherein a maximum code block size is 3840 bits. The one or more encoded code blocks are transmitted over the wireless network.
    Type: Grant
    Filed: December 12, 2022
    Date of Patent: May 14, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Sara Sandberg, Mattias Andersson, Yufei Blankenship, Amirpasha Shirazinia
  • Patent number: 11985592
    Abstract: Systems and methods are disclosed herein for determining the validity of idle mode measurements. In some embodiments, a method performed by a wireless device for determining a validity of one or more idle mode measurements performed for a cellular communications network comprises receiving, from a network node, an idle mode measurement configuration comprising a measurement duration time value and a validity time value for idle mode measurements. The method further comprises, while in a dormant state, performing one or more idle mode measurements according to the idle mode measurement configuration. The method further comprises determining that one or more idle mode measurement reports are invalid based on the validity time value and deleting the one or more idle mode measurement reports after determining that the one or more idle mode measurement reports are invalid based on the validity time value.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: May 14, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Oumer Teyeb, Patrik Rugeland
  • Patent number: 11985016
    Abstract: A method, network node and wireless device are provided in which a method in the network node for switching between different numerologies supported by the network node includes determining at least one parameter that can be used by the network node for switching between a first signal operating with a first numerology and a second signal operating with a second numerology; switching between the first signal and the second signal based on the at least one parameter; and after the switching, operating at least one of the first signal and the second signal between the network node and a second node.
    Type: Grant
    Filed: August 3, 2021
    Date of Patent: May 14, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Ali Behravan, Muhammad Kazmi, Iana Siomina, Patrizia Testa
  • Patent number: 11985031
    Abstract: A method by a wireless device is provided for optimized reconfiguration of radio link monitoring (RLM) and beam monitoring. The method includes receiving, from a first network node, a first message comprising at least one RLM parameter. A second message indicating activation of the at least one RLM parameter associated with the first message is received. The second message is a lower layer signal compared to the first message.
    Type: Grant
    Filed: February 13, 2023
    Date of Patent: May 14, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Icaro L. J. da Silva, Helka-Liina Maattanen, Claes Tidestav
  • Patent number: 11984949
    Abstract: There is provided mechanisms for beamformed transmission using a precoder. A method is performed by a radio transceiver device. The radio transceiver device comprises hardware. The hardware impacts transmission of signals from the radio transceiver device. The method comprises acquiring channel conditions of a radio propagation channel between the radio transceiver device and at least one other radio transceiver device. The method comprises determining a precoder, in form of a linear precoding matrix, for beamformed transmission towards the at least one other radio transceiver device. The precoder is determined according to the channel conditions and a model of how the hardware impacts the transmission of signals from the radio transceiver device. The method comprises transmitting, using the precoder, a signal towards the at least one other radio transceiver device.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: May 14, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Sven Jacobsson, Sina Rezaei Aghdam, Thomas Eriksson, Hamed Farhadi, Ulf Gustavsson
  • Patent number: 11985045
    Abstract: Embodiments of the present disclosure provides a method and an apparatus for subscribing a notification of a change of a network function. A method for subscribing to notification of a change of a network function may comprise: transmitting (S101) a subscription message to a monitoring network function; and receiving (S102) a notification from the monitoring network function to notify a change from the network function whose status is required to be monitored. The subscription message indicates of the network function. The attribute comprises a serving scope indicating one or more target served area of the network function whose status is required to be monitored. According to embodiments of the present disclosure, a simple and fast implementation for subscribing notification of change of network function may be achieved. Particularly, both the response time and the accuracy of the notification about a change of a subscribed network function may be improved.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: May 14, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Yingjiao He, Xinyu Zhang, Wu Wang, Jinyin Zhu, Deqin Zhan, Yunjie Lu
  • Patent number: 11985070
    Abstract: A method and a classification configuration module for managing a classification configuration for traffic, related to a service, in a software defined network are disclosed. The classification configuration module receives the classification configuration from a service related module. The classification configuration includes a first indication indicating a traffic treatment for the traffic, and a second indication identifying the traffic to be treated according to the first indication for traffic treatment. The classification configuration module determines, based on the classification configuration, a set of traffic filters for use by a software defined network controlling module to determine a list of service functions implementing the traffic treatment for the traffic. The classification configuration module transmits information relating to the set of traffic filters to the software defined network controlling module.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: May 14, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventor: Ibon Gochi Garcia
  • Patent number: 11985797
    Abstract: A cooling device for dissipating heat from an object. The cooling device comprises a base part arranged for contact with the object, and fins attached to and protruding from the base part in a direction substantially away from the object when in use. The fins are arranged in a first configuration adapted for heat dissipation by natural convection of air and in a second configuration adapted for heat dissipation by forced convection of ambient air movement such as wind. Thereby, the cooling device can provide ample or at least adequate cooling effect on the object both when there is more or less ambient air movement chiefly using the second configuration, and when the ambient air is not moving chiefly using the first configuration.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: May 14, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stevin Van Wyk, Mikkel Myhre
  • Patent number: 11985091
    Abstract: Signalling Support for NR Positioning with Aperiodic SRS ConfigurationsEmbodiments described herein relate to methods and apparatus in networks, and particularly methods, Location Management Functions, base stations and wireless devices for configuring and sending uplink sounding reference signals, UL SRS. 1. A method performed by a Location Management Function, LMF, comprises receiving radio resource information relating to radio resources that can be applied for UL SRS by a wireless device; and providing a notification relating to triggering aperiodic uplink SRS to a base station serving the wireless device.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: May 14, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ritesh Shreevastav, Gino Luca Masini, Iana Siomina, Per Ernström, Åke Busin, Florent Munier
  • Patent number: 11984954
    Abstract: Systems and methods for flexible triggering of Channel State Information (CSI) reports are provided. A method performed by a wireless device for transmitting a CSI report according to a timeline requirement includes one or more of: determining to enable timeline switching; receiving an instruction to determine a first CSI report; determining to stop determining an existing ongoing second CSI report; determining the first CSI report; and transmitting the first CSI report. In this way, some embodiments allow ultra-low latency CSI reporting also for the cases when the wireless device is already in the ongoing process of determining a CSI report. In some embodiments, Ultra-Reliable Low-Latency Communication (URLLC) CSI reports are allowed to “override” previous CSI calculations. Some embodiments achieve more flexible triggering of URLLC CSI reports so that the ultra-low latency CSI timeline can be applied for more cases, reducing the CSI latency and resulting in more reliable URLLC scheduling.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: May 14, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sebastian Faxér, Mattias Frenne, Shiwei Gao, Siva Muruganathan
  • Patent number: 11985707
    Abstract: A method is performed by a network node. The method comprises determining to use an extended random access preamble identifier, RAPID, for a random access procedure with a wireless device. The method further comprises transmitting a medium access control, MAC, protocol data unit, PDU. The MAC PDU comprises a header and one or more random access responses, RARs. Each RAR is associated with a corresponding subheader within the header of the MAC PDU. The random access procedure is associated with a first RAR of the one or more RARs and the extended RAPID for the random access procedure is indicated by a combination of one or more bits in the first RAR and one or more bits in the subheader that corresponds to the first RAR.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: May 14, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Antti Ratilainen, Andreas Höglund, Olof Liberg, Yutao Sui, Emre Yavuz