Patents by Inventor Emma Wittenmark

Emma Wittenmark 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).

  • Publication number: 20250193121
    Abstract: A method for latency control in a communication network is disclosed. The method includes identifying that a service is currently associated with a user device associated with the communication network, wherein a deviation between a latency requirement of the service and an internal latency performance of the communication network is bounded, and dynamically adjusting a configuration of the communication network for the service. In some embodiments, the dynamic adjustment is performed only for user devices associated with services with bounded deviation between the latency requirement of the service and the internal latency performance of the communication network. In some embodiments, dynamically adjusting the configuration of the communication network comprises controlling the communication network to provide latencies below a maximum latency threshold for the service. In some embodiments, the dynamic adjustment of the configuration of the communication network is based on the current traffic load.
    Type: Application
    Filed: February 24, 2025
    Publication date: June 12, 2025
    Inventors: Emma WITTENMARK, Christer ÖSTBERG, Henrik RONKAINEN, Johan STRAND, Torbjörn SÖLVE, Kjell GUSTAFSSON
  • Patent number: 12302269
    Abstract: Embodiments include methods implemented in a wireless device for reporting of a cell global identifier (CGI) in a wireless network. In one embodiment, a method comprises receiving a synchronization signal/physical broadcast channel (SS/PBCH) block from a network node; locating a control resource set (CORESET) configured by the network node through determining a frequency position of the CORESET based on a value received from the network node through radio resource control signaling; and determining and reporting the CGI to the network node based on the located CORESET. In another embodiment, the CORESET is located through testing a set of one or more reference frequency candidates from which a frequency position of the CORESET is determined.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: May 13, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stephen Grant, Peter Alriksson, Emma Wittenmark
  • Publication number: 20250150402
    Abstract: A method performed by a first network node for uplink congestion control in a radio network is provided. The first network node is operable to handle one or more first layers of a protocol stack for an uplink connection between a wireless device and the radio network and is communicatively coupled to a second network node handling one or more second, lower layers of the protocol stack. The method comprises obtaining an indication of a proportion of packets within an uplink user plane flow that are to be marked with a congestion indicator, in which the proportion is based on a delay experienced by packets of the uplink user plane flow sent by the wireless device to the second network node. The method further comprises marking the proportion of packets with the congestion indicator and transmitting packets for the uplink user plane flow towards a core network of the radio network.
    Type: Application
    Filed: September 23, 2022
    Publication date: May 8, 2025
    Inventors: Christer Östberg, Paul Schliwa-Bertling, Ingemar Johansson, Angelo Centonza, Henrik Ronkainen, Emma Wittenmark, Per Willars, Martin Skarve
  • Publication number: 20250133023
    Abstract: A method performed by a first network node for downlink congestion control in a radio network. The first network node handles one or more first layers of a protocol stack for a downlink connection between the radio network and a wireless device, and is communicatively coupled to a second network node handling one or more second layers of the protocol stack for the downlink connection. The one or more second layers are lower than the one or more first layers. The method comprises: obtaining an indication of a proportion of packets within a downlink user plane flow over the downlink connection that are to be marked with a congestion indicator, wherein the proportion is based on a delay experienced by packets of the downlink user plane flow sent by the second network node to the wireless device; marking the proportion of packets with the congestion indicator; and transmitting packets for the downlink user plane flow to the second network node for onward transmission to the wireless device.
    Type: Application
    Filed: September 23, 2022
    Publication date: April 24, 2025
    Inventors: Christer Östberg, Paul Schliwa-Bertling, Ingemar Johansson, Per Willars, Angelo Centonza, Martin Skarve, Henrik Ronkainen, Emma Wittenmark
  • Patent number: 12278771
    Abstract: A method for latency control in a communication network is disclosed. The method includes identifying that a service is currently associated with a user device associated with the communication network, wherein a deviation between a latency requirement of the service and an internal latency performance of the communication network is bounded, and dynamically adjusting a configuration of the communication network for the service. In some embodiments, the dynamic adjustment is performed only for user devices associated with services with bounded deviation between the latency requirement of the service and the internal latency performance of the communication network. In some embodiments, dynamically adjusting the configuration of the communication network comprises controlling the communication network to provide latencies below a maximum latency threshold for the service. In some embodiments, the dynamic adjustment of the configuration of the communication network is based on the current traffic load.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: April 15, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Emma Wittenmark, Christer Östberg, Henrik Ronkainen, Johan Strand, Torbjörn Sölve, Kjell Gustafsson
  • Patent number: 12273289
    Abstract: Synchronization signal and Physical Broadcast Channel, SS/PBCH, block management. A network node determines whether a network condition is met, signals to a communication terminal to apply a first detection method for SS/PBCH block detection when the network condition is determined to be met, signals to the communication terminal to apply a second detection method for SS/PBCH block detection when the network condition is determined as not met, and transmits SS/PBCH blocks according to the first or the second SS/PBCH block detection method, based on whether the network condition is met. The communication terminal receives the signalling from the network node associated with the communication network, determines whether the indicated SS/PBCH block detection method is a first or a second SS/PBCH block detection method based on the received signalling, and applies, based on the determination, the first or the second SS/PBCH block detection method for SS/PBCH block detection.
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: April 8, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Peter Alriksson, Emma Wittenmark, Stephen Grant
  • Publication number: 20250023828
    Abstract: There is provided mechanisms for controlling queue-size of a virtual queue system for an incoming traffic flow of packets. The incoming traffic flow of packets is by a scheduler scheduled for user equipment as an outgoing traffic flow. The virtual queue system is configured to represent a real queue system of the scheduler by estimating a virtual delay for the packets. The virtual delay is estimated by measuring the incoming traffic flow and estimating the outgoing traffic flow. The method is performed by a network node. A method comprises adaptively controlling a maximum queue-size and a minimum queue-size of the virtual queue system as a function of measured traffic rate of the incoming traffic flow, current congestion level of the virtual queue system, estimated traffic rate of the outgoing traffic flow, and queue-size of the real queue system.
    Type: Application
    Filed: November 18, 2021
    Publication date: January 16, 2025
    Inventors: Victor Millnert, Emma Wittenmark, Christer Östberg
  • Publication number: 20250016099
    Abstract: There is provided mechanisms for handling a traffic flow in a wireless communication system. A method is performed by a controller. The method comprises monitoring a traffic flow on a bearer between an application server and a user equipment in the wireless communication system. The traffic flow is scheduled by a scheduler. The method comprises determining whether or not the traffic flow fulfils a compliance requirement. The compliance requirement pertains to a recommended bitrate is maintained for the traffic flow. The method comprises performing a mitigating action for the traffic flow when the traffic flow fails to fulfil the compliance requirement.
    Type: Application
    Filed: November 18, 2021
    Publication date: January 9, 2025
    Inventors: Victor Millnert, Emma Wittenmark, Christer Östberg
  • Publication number: 20240396773
    Abstract: A method, network node and wireless device (WD) for search space configurations for wideband communications are disclosed. According to one aspect, a method in a network node includes determining a WD processing capability NBD,?B-slot and NCCE,?B-slot, for processing a physical downlink control channel, PDCCH, according to: an operating numerology, ?; and a number B of slots. The method also includes configuring the WD to monitor for PDCCH based at least in part on the determined processing capability; and transmitting PDCCH to the WD in at least one of two slots n0 and n0+x in which the WD monitors for PDCCH, where x is greater than zero.
    Type: Application
    Filed: January 13, 2022
    Publication date: November 28, 2024
    Inventors: Jung-Fu CHENG, Stephen GRANT, Yuhang LIU, Peter ALRIKSSON, Emma WITTENMARK
  • Patent number: 12101753
    Abstract: A multi-user multiple-input multiple-output (MU-MIMO) scheduling method is disclosed for scheduling transmission from a plurality of transmission instances to a plurality of receivers. The method comprises acquiring, for each pair of a transmission instance and a receiver, a communication quality metric and forming a first group of receivers from the plurality of receivers. The first group of receivers is formed by selecting a first receiver as a first group member and associating a first transmission instance to the first receiver and—when a plurality of communication quality metrics of the first transmission instance and not yet selected receivers fulfill a first criterion for sufficient communication quality—selecting a second receiver from the not yet selected receivers as a second group member and associating a second transmission instance to the second receiver.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: September 24, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Andres Reial, Oskar Drugge, Emma Wittenmark
  • Publication number: 20240276508
    Abstract: New signaling is defined from wireless devices to a wireless communication network, concerning the wireless devices' duty cycle statuses. This allows the network to optimize its control of the radio resource usage. Additionally, embodiments described herein provide new signalling from the network to wireless devices concerning the network's duty cycle status. This allows wireless devices to optimize their idle mode operation, including decisions whether to request a connection setup or remain in idle mode. Embodiments described and claimed herein provide a set of simple methods for operating a cellular system in a duty cycle controlled radio frequency band.
    Type: Application
    Filed: April 22, 2024
    Publication date: August 15, 2024
    Inventors: Olof Liberg, David Sugirtharaj, Emma Wittenmark, Mai-Anh Phan
  • Patent number: 12022350
    Abstract: A network-based method allows a network to optimize its control of radio resource usage by directing connected and idle mode User Equipment (UEs) (10) to another network node, e.g. a neighbor cell, having a better duty cycle, or by configuring the UEs to use another frequency band served by the same network node or a different network node. Signaling its duty cycle budget to the UEs allows the UEs to optimize their idle mode operation by performing cell reselection to a network node which has a better duty cycle budget.
    Type: Grant
    Filed: June 26, 2023
    Date of Patent: June 25, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Olof Liberg, David Sugirtharaj, Emma Wittenmark, Mai-Anh Phan
  • Patent number: 11991710
    Abstract: New signaling is defined from wireless devices (10) to a wireless communication network, concerning the wireless devices' duty cycle statuses. This allows the network to optimize its control of the radio resource usage. Additionally, embodiments described herein provide new signalling from the network to wireless devices concerning the network's duty cycle status. This allows wireless devices (10) to optimize their idle mode operation, including decisions whether to request a connection setup or remain in idle mode. Embodiments described and claimed herein provide a set of simple methods for operating a cellular system in a duty cycle controlled radio frequency band.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: May 21, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Olof Liberg, David Sugirtharaj, Emma Wittenmark, Mai-Anh Phan
  • Patent number: 11950157
    Abstract: Methods, nodes and computer program products control radio channel deployment when using un-licensed carriers in a wireless communication network and control mobility and/or load balancing target selection when using un-licensed carriers. When performed in an access node, unlicensed carrier intrinsic cell channel load is determined in a cell served by the access node based on one or more predetermined channel load indicators and neighbor cell channel load information is obtained, from one or more neighboring access nodes. The neighbor cell channel load information includes unlicensed carrier channel load in respective cells based on the one or more predetermined channel load indicators. At least one channel deployment operation is initiated based on an outcome of one or more comparative operations including the determined unlicensed carrier intrinsic cell channel load and/or the obtained neighbor cell channel load information.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: April 2, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Chunhui Zhang, Peter Alriksson, Tomas Hedberg, Yusheng Liu, Mai-Anh Phan, David Sugirtharaj, Emma Wittenmark
  • Publication number: 20240080900
    Abstract: A method, system and apparatus are disclosed. According to some embodiments, a wireless device is provided. The wireless device includes processing circuitry configured to and/or that operates to: select at least one slot from a plurality of slots that correspond to a first subcarrier spacing, SCS, greater than 120 kHz where each of the at least one slot includes at least physical random access channel, PRACH, occasion, and cause PRACH signaling based on the at least one slot.
    Type: Application
    Filed: January 17, 2022
    Publication date: March 7, 2024
    Inventors: Johan AXNÄS, Stephen GRANT, Peter ALRIKSSON, Emma WITTENMARK
  • Publication number: 20240064669
    Abstract: Embodiments include methods implemented in a wireless device for reporting of a cell global identifier (CGI) in a wireless network. In one embodiment, a method comprises receiving a synchronization signal/physical broadcast channel (SS/PBCH) block from a network node; locating a control resource set (CORESET) configured by the network node through determining a frequency position of the CORESET based on a value received from the network node through radio resource control signaling; and determining and reporting the CGI to the network node based on the located CORESET. In another embodiment, the CORESET is located through testing a set of one or more reference frequency candidates from which a frequency position of the CORESET is determined.
    Type: Application
    Filed: October 6, 2020
    Publication date: February 22, 2024
    Inventors: Stephen Grant, Peter Alriksson, Emma Wittenmark
  • Publication number: 20240007206
    Abstract: A method of measuring a received signal strength by a radio device in a radio access network, RAN, is provided. The radio device obtains a radio resource information indicative of a spatial domain of a radio resource for measuring the received signal strength. The spatial domain of the radio resource corresponds to a combination of antenna elements in the radio device according to a spatial domain filter. The radio device measures the received signal strength on the radio resource in the spatial domain according to the obtained radio resource information. The radio device transmits a report to the RAN, the report being indicative of the received signal strength. The received signal strength includes a received signal strength indicator, RSSI.
    Type: Application
    Filed: October 21, 2021
    Publication date: January 4, 2024
    Inventors: Peter ALRIKSSON, Emma WITTENMARK, Stephen GRANT, Havish Koorapaty, Reem KARAKI
  • Publication number: 20230397053
    Abstract: A method is disclosed for a radio access network control node operating in a communication network having an associated user device, wherein the user device has an ongoing application service session with an application server via the communication network. The method includes detecting that a trigger condition is met for the user device, the trigger condition indicating an upcoming communication interruption in relation to the application service session. The method also includes causing implementation of a temporary transmission rate adjustment of the application service session, wherein the temporary transmission rate adjustment provides a radio access channel margin accommodating the upcoming communication interruption. In some embodiments, causing implementation of the temporary transmission rate adjustment includes transmitting an adjustment command to the user device and/or the application server. Corresponding methods for a user device and an application server are also disclosed.
    Type: Application
    Filed: November 3, 2020
    Publication date: December 7, 2023
    Inventors: Henrik RONKAINEN, Torbjörn SÖLVE, Emma WITTENMARK, Johan STRAND, Christer ÖSTBERG, Kjell GUSTAFSSON
  • Publication number: 20230337096
    Abstract: A network-based method allows a network to optimize its control of radio resource usage by directing connected and idle mode User Equipment (UEs) (10) to another network node, e.g. a neighbor cell, having a better duty cycle, or by configuring the UEs to use another frequency band served by the same network node or a different network node. Signaling its duty cycle budget to the UEs allows the UEs to optimize their idle mode operation by performing cell re-selection to a network node which has a better duty cycle budget.
    Type: Application
    Filed: June 26, 2023
    Publication date: October 19, 2023
    Inventors: Olof Liberg, David Sugirtharaj, Emma Wittenmark, Mai-Anh Phan
  • Publication number: 20230319807
    Abstract: There is disclosed a method of operating a receiving radio node in a wireless communication network, the method comprising receiving signaling on an initial bandwidth part (IBWP) utilising a subcarrier spacing, the subcarrier spacing being based on at least one of a signaling characteristic of received synchronisation signaling and/or information carried in received synchronisation signaling. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: June 8, 2023
    Publication date: October 5, 2023
    Inventors: Peter ALRIKSSON, Emma WITTENMARK, Stephen GRANT