Patents Assigned to ERICSSON
  • Patent number: 12259587
    Abstract: An optical connector for a photonic circuit. The optical connector includes a first part, fixable to a photonic circuit, having at least one slab of optically transparent material, the at least one slab including a first lens. The optical connector includes a second part, movable between a connected position adjacent the first part and a disconnected position removed from the first part. The second part includes at least one slab of optically transparent material, the at least one slab including a second lens located to be in alignment with the first lens in the connected position. One or more guiding elements are arranged to direct light to the second lens. The second part is configured to connect the one or more guiding elements to an optical fiber.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: March 25, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Francesco Testa, Alessandra Bigongiari, Luigi Tallone, Gabriele De Angelis, Marco Romagnoli
  • Patent number: 12262409
    Abstract: Embodiments herein relate to a method performed by a scheduling node for scheduling an uplink transmission from a wireless device to the scheduling node, which wireless device is connected to a Primary Cell, Pcell, of the scheduling node in a licensed or unlicensed frequency band, and wherein the wireless device is also connected to at least one Secondary Cell, SCell, in an unlicensed frequency band. The scheduling node determines at least one Listen Before Talk, LBT, parameter associated with an LBT procedure and informs the wireless device about the determined at least one LBT parameter in a scheduling grant of the uplink transmission.
    Type: Grant
    Filed: June 29, 2023
    Date of Patent: March 25, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Amitav Mukherjee, Jung-Fu Cheng, Sorour Falahati, Laetitia Falconetti, Havish Koorapaty, Daniel Larsson
  • Patent number: 12261735
    Abstract: A user equipment starts a first timer and a second timer in response to different respective network events. The starting of the first and second timers causes the first and second timers to simultaneously elapse. In response to one of the simultaneously elapsing timers expiring, the user equipment indicates, to a network node, which of the simultaneously elapsing timers expired.
    Type: Grant
    Filed: May 18, 2023
    Date of Patent: March 25, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Torsten Dudda, Angelo Centonza, Mats Folke, Stefan Wager, Emre Yavuz
  • Patent number: 12262322
    Abstract: A wireless communication device (100) comprises a first transceiver (110) comprising a first frequency synthesizer (112) which comprises a first digitally controlled oscillator (DCO1) and a crystal oscillator (XO). The wireless communication device (100) further comprises a second transceiver (120) comprising a wakeup receiver (Rx2), a second transmitter (Tx2) and a second digitally controlled oscillator (DCO2) connected to the wakeup receiver (Rx2) and second transmitter (Tx2). The wireless communication device (100) further comprises a control unit (170) configured to control operation of the wireless communication device. The second transmitter (Tx2) is configured to transmit periodically a signal to a base station. The signal is modulated by a code identifying the wireless communication device (100) and transmitted at a frequency set by the second digitally controlled oscillator (DCO2).
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: March 25, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Henrik Sjöland, Leif Wilhelmsson
  • Patent number: 12262321
    Abstract: A method of a network node arranged for wireless communication with wireless communication devices is for transmission of a signal to the wireless communication devices. The method includes receiving, from another network node, a paging message intended for a wireless device belonging to a first group of wireless devices, determining, from the received paging message, a signal resource allocation and the group of the wireless device, determining a signal sequence based on the signal resource allocation and the group of the wireless device, and transmitting the signal comprising the determined signal sequence using the determined signal resource allocation. Methods for network nodes and wireless communication devices are disclosed, as well as network nodes and wireless devices, and computer programs therefor.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: March 25, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Magnus Åström, Anders Wallén
  • Patent number: 12262266
    Abstract: The present disclosure relates generally to communications, and more particularly to methods, computer program products, wireless devices and related nodes for Dual Active Protocol Stack (DAPS) handover reports. In one example embodiment, a method is performed by a wireless device. A DAPS handover is performed. Also, a type of handover report is determined. Furthermore, a handover report of the determined type is compiled and optionally stored. Still further, the handover report is transmitted to a network node operating as an access node.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: March 25, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ali Parichehrehteroujeni, Pradeepa Ramachandra, Pontus Wallentin
  • Patent number: 12262240
    Abstract: A method performed by a network node for a wireless telecommunications network performs operations including providing a resource allocation model that corresponds to a base station and that provides a recommendation regarding resource allocation for a user equipment, UE, that is in an operating zone of the base station during a limited resource condition of the base station. Operations may include identifying, based on the resource allocation model, a reduced priority zone in the operating zone of the base station that corresponds to the UE having a high risk of reduced service from the base station relative to other UEs in the operating range of the base station.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: March 25, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Alexandros Palaios, Mazen Abdel Latif, Abdulrahman Alabbasi, Ali El Essaili
  • Patent number: 12261726
    Abstract: There is disclosed a method of operating a radio node in a wireless communication network, the method including communicating based on a signaling structure, the signaling structure including a number R of long symbols and/or a number Nsym of regular symbols, wherein R and/or Nsym is based on the subcarrier spacing associated to the signaling structure and/or a cyclic prefix length of a long symbol and/or a cyclic prefix length of a regular symbol. The disclosure also pertains to related devices and methods.
    Type: Grant
    Filed: June 27, 2023
    Date of Patent: March 25, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Mehrnaz Afshang, Mohammad Mozaffari, Jung-Fu Cheng, Dennis Hui
  • Patent number: 12262042
    Abstract: According to an embodiment, an encoder is configured to ensure that for each long-term picture of a RPS of a picture i the value of a flag referred to as delta_poc_msb_present_flag[i] is equal to 1 when there are at least two reference pictures in a decoded picture buffer with lsb's of the POC referred to as pic_order_cnt_lsb equal to the lsb's of the respective long-term picture i denoted POC lsbLt[i]. When the delta_poc_msb_present_flag is equal to 1, the long-term picture is indicated by the full POC.
    Type: Grant
    Filed: July 7, 2023
    Date of Patent: March 25, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Rickard Sjöberg, Jonatan Samuelsson
  • Patent number: 12261817
    Abstract: There is provided a method performed by a first session initiation protocol (SIP) server (10) of a network (300). The method comprises initiating transmission of a SIP message (302, 304) towards a node (20) at an edge of the network (300). The SIP message (302, 304) comprises a domain name and a directive for resolving the domain name to identify one or more internet protocol (IP) addresses of a second SIP server to which the SIP message (302, 304) is to be sent.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: March 25, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventor: Rogier August Caspar Joseph Noldus
  • Patent number: 12262219
    Abstract: Methods and apparatus in a communications network as described herein are suitable for determining a first model for use in predicting conditions on carrier frequencies in the communications network. In a method, network measurements are obtained (302) of conditions on a plurality of carrier frequencies. A first model is then determined (304) based on the obtained measurements that takes as input the conditions on a first subset of the plurality of carrier frequencies and outputs a prediction of the conditions on a second subset of the plurality of carrier frequencies, based on the conditions of the first subset of carrier frequencies.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: March 25, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Reza Moosavi, Henrik Rydén, Joel Berglund, Pradeepa Ramachandra, Roman Zhohov, Sakib Bin Redhwan
  • Patent number: 12262374
    Abstract: A method (400) performed by a UE (600). The method includes the UE receiving (s402) a message transmitted by a base station, wherein the message comprises: i) logical channel, LCH, information identifying a LCH and ii) configured grant, CG, information identifying at least one CG configuration to which the LCH is mapped.
    Type: Grant
    Filed: August 11, 2020
    Date of Patent: March 25, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventor: Min Wang
  • Patent number: 12262294
    Abstract: Systems and methods are disclosed herein for event notification in a core network of a cellular communications system. In one embodiment, a method performed by a first Policy and Control Function (PCF) serving an Access Management (AM) policy association for a User Equipment (UE) wherein the first PCF is comprised in a core network of a cellular communications system comprises subscribing to an event exposure service of a second PCF serving a Session Management (SM) policy association for the UE. The method further comprises, responsive to subscribing to the event exposure service of the second PCF, receiving a report from the second PCF. In this manner, separate deployments of the first and second PCFs are enabled and still the first PCF serving the AM policy association for the UE can implement AM policies for the UE, e.g., based on UE data usage, e.g., of specified service bundles.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: March 25, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Susana Fernandez Alonso, Fuencisla Garcia Azorero, Antonio Iniesta Gonzalez, Maria Belen Pancorbo Marcos, Ignacio Rivas Molina
  • Patent number: 12261821
    Abstract: The present disclosure proposes network elements, methods at the network elements for facilitating reuse of IP address, a telecommunications system comprising the network elements. The method at a first network element for facilitating reuse of an IP address at multiple UEs comprising a first UE comprises: transmitting, to a second network element, a first request message associated with the first UE, the first request message comprising the IP address and a first indicator which, in conjunction with the IP address, uniquely identifies the first UE.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: March 25, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Wen Zhang, Yingjiao He, Wenliang Xu
  • Patent number: 12261719
    Abstract: Method and one or more first devices for supporting calibration of a multi-antenna array comprised in a first antenna device operative with a wireless communication network. The first device(s) provide phase correcting information, to be used in calibration of the multi-antenna array, based on covariances corresponding to recurrent displacement vectors of the multi-antenna array. Said covariances being based on channel estimates estimated from certain radio signals received after transmission over radio propagation channels between said multi-antenna array of the first antenna device and one or more second antenna devices operative with the wireless communication network.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: March 25, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Henrik Asplund, Martin Johansson, David Astely, Karl Werner, Benny Lennartson
  • Patent number: 12262232
    Abstract: A method performed by a wireless device (12) comprises detecting (310) consistent uplink listen-before-talk, LBT, failure. The method also comprises considering or not considering (320) radio link failure to be detected due to detecting (310) consistent uplink LBT failure, depending respectively on whether the wireless device (12) is not monitoring or is monitoring for a problem with a certain procedure (18) when consistent uplink LBT failure is detected.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: March 25, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventor: Min Wang
  • Patent number: 12262415
    Abstract: A method, system and apparatus for semi-persistent channel state information (CSI) reporting procedures with uplink (UL) clear channel assessment (CCA) are disclosed. According to one aspect, a method includes receiving a signal indicating activation or deactivation of semi-persistent channel state information (CSI) reporting and responsive to receiving the signal, attempt to transmit a Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK), the attempt being subject to success or failure of a clear channel assessment (CCA). When the CCA fails and when the signal indicates activation, the method includes refraining from CSI measurement and reporting unless CCA subsequently succeeds before expiry of a time interval. When the CCA fails and when the signal indicates deactivation, the method includes continuing CSI measurement but refraining from CSI reporting unless CCA subsequently succeeds before expiry of a time interval.
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: March 25, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Kazuyoshi Uesaka, Muhammad Ali Kazmi, Iana Siomina, Santhan Thangarasa
  • Patent number: 12262435
    Abstract: Sidelink (SL) Radio Link Failure (RLF) handling in Multi-Radio Dual Connectivity (MR-DC) scenarios is provided. Systems and methods are disclosed herein for handling SL RLF detection and declaration for an SL unicast link in MR-DC scenarios. In some embodiments, when an RLF is detected on one of a pair of SL User Equipments (UEs), a message is sent to a primary or secondary node to notify a serving network about the failure. In this case, either the primary node or secondary node may try to reconfigure the SL UEs, thus guaranteeing SL service continuity. Further, in some embodiments, once the network is informed that the SL radio channel has failed, the SL service continuity may be guaranteed by a Master Node (MN)-Secondary Node (SN) coordination regarding the SL configuration and connectivity handling (e.g., resource coordination, mode transmission, and so on).
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: March 25, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Antonino Orsino
  • Patent number: 12262438
    Abstract: A wireless device (14) transmits, to a radio network node (12), a radio resource control (RRC) connection request (18) that requests the establishment, re-establishment, or resumption of an RRC connection (16). The RRC connection request (18) indicates a type of core network to which the wireless device (14) selects to connect. The wireless device (14) in some embodiments receives a response to the RRC connection request (18), based on the type of core network to which the wireless device (14) selects to connect. For example, the wireless device (14) may receive the response using a protocol stack determined based on the type of core network to which the wireless device (14) selects to connect.
    Type: Grant
    Filed: September 6, 2023
    Date of Patent: March 25, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Oscar Ohlsson, Gunnar Mildh, Malik Wahaj Arshad
  • Publication number: 20250096855
    Abstract: There is provided mechanisms for transmission of reference signals. A method is performed by a terminal device. The terminal device comprises at least two physical antenna ports. The method comprises creating a virtual antenna port for, and applied over, at least two of the physical antenna ports. The method comprises transmitting, in the virtual antenna port, as many uplink reference signals as there are physical antenna ports.
    Type: Application
    Filed: July 22, 2024
    Publication date: March 20, 2025
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sven PETERSSON, Fredrik ATHLEY, Andreas NILSSON, Roy TIMO, Xinlin ZHANG