Patents Assigned to Telefonaktiebolagget LM Ericsson (Publ)
  • Patent number: 11984939
    Abstract: The present disclosure provides a method (200) in a network device for uplink inter-cell interference estimation. The network device serves a cell divided into a plurality of sectors each corresponding to an angle range. The method (200) includes, for a first sector of the plurality of sectors: measuring (210) an uplink inter-cell interference level; and estimating (220) an uplink inter-cell interference metric based on the measured uplink inter-cell interference level.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: May 14, 2024
    Assignee: Telefonaktiebolagget LM Ericsson (Publ)
    Inventors: Chunhui Liu, Erik Eriksson, Qi Zhang
  • Patent number: 11972032
    Abstract: There is provided mechanisms for authenticating an OEM entity as manufacturer of a communication device comprising an identification module. A method is performed by a network entity. The method comprises providing, towards tire identification module, a challenge of a challenge-response authentication procedure. The method comprises obtaining, from the identification module, a first response of the challenge-response authentication procedure. The method comprises providing, towards the OEM entity and upon having obtained the response, the challenge. The method comprises obtaining, from the OEM entity, a second response of the challenge-response authentication procedure. The method comprises authenticating the OEM entity as the manufacturer of the communication device only when the second response matches the first response.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: April 30, 2024
    Assignee: Telefonaktiebolagget LM Ericsson (Publ)
    Inventors: Håkan Englund, Bernard Smeets
  • Patent number: 11968108
    Abstract: The present disclosure provides a method (200) in a router for Label Switched Path, LSP, traceroute. The method (200) includes: receiving (210) an echo request packet containing a label stack; determining (220) from the label stack that forwarding to a downstream router is to be based on a binding segment identifier; identifying (230) a plurality of segments included in a binding segment associated with the binding segment identifier; and transmitting (240) an echo reply packet to a router originating the echo request packet, the echo reply packet containing information indicating a presence of the binding segment identifier in the label stack and indicating a segment identifier associated with each of the plurality of segments.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: April 23, 2024
    Assignee: Telefonaktiebolagget LM Ericsson (Publ)
    Inventors: Jinfeng Zhao, Xianmin Li, Liang Zhou
  • Patent number: 11943706
    Abstract: A wireless device, UE, in a communication network receives satellite positioning information and a list of a plurality of different types of measurements to perform to find a public land mobile network, PLMN, to select. The UE performs the plurality of different types of measurements on a frequency associated with a found PLMN to generate a plurality of measurement results. The UE determines, based on the plurality of measurements results, whether a high-quality indication should be provided to a non-access stratum, NAS. Responsive to determining that the high-quality indication should be provided, the UE provides the high quality indication and an identification of the found PLMN to the NAS.
    Type: Grant
    Filed: April 5, 2020
    Date of Patent: March 26, 2024
    Assignee: Telefonaktiebolagget LM Ericsson (Publ)
    Inventors: Jonas Sedin, Olof Liberg, Helka-Liina Määttanen
  • Patent number: 11937168
    Abstract: Embodiments of the present disclosure provide methods and apparatuses for session management. A method implemented at a first network function (NF) may comprise detecting that a path between the first NF and a second NF is failed or the second NF is failed, wherein the second NF maintains one or more data network connections or sessions established between one or more user equipments (UEs) and one or more data networks; selecting an available second NF for the at least one of the one or more data network connections or sessions; sending at least one address or address range of at least one UE corresponding to the at least one of the one or more data network connections or sessions and respective priority metric of the at least one address or address range to the available second NF.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: March 19, 2024
    Assignee: Telefonaktiebolagget LM Ericsson (Publ)
    Inventors: Yingjiao He, Jinyin Zhu, Yongzhong Liang
  • Patent number: 11937244
    Abstract: A method performed by a wireless device (410) includes transmitting an uplink, UL, burst to a network node (460). The UL burst includes UL control information, UCI, multiplexed in a Physical Uplink Shared Channel, PUSCH. The UCI carries one or more parameters for unlicensed operation, and the UL burst has an associated UL burst structure. The UL burst structure includes a first slot, a full slot, and a last slot.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: March 19, 2024
    Assignee: Telefonaktiebolagget LM Ericsson (Publ)
    Inventors: Reem Karaki, Jung-Fu Cheng
  • Patent number: 11838953
    Abstract: The invention refers to a method of operating a wireless device, UE, configured to provide communication over a radio interface with a wireless communication network, the method including transmitting a random access, RA, preamble of an RA procedure to the wireless communication network using a first uplink carrier; and after transmitting the RA preamble of the RA procedure, receiving a Random Access Response, RAR, of the RA procedure from the wireless communication network, wherein the RAR includes an indication to use a second uplink carrier different than the first uplink carrier; the invention further refers to a method of operating a base station of a wireless communication network configured to provide communication over a radio interface with a wireless device, UE, the method including receiving a random access, RA, preamble of an RA procedure from the wireless device using a first uplink carrier.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: December 5, 2023
    Assignee: Telefonaktiebolagget LM Ericsson (Publ)
    Inventors: Ritesh Shreevastav, Andreas Höglund, Yuhang Liu, Yutao Sui, Tuomas Tirronen, Emre Yavuz
  • Patent number: 11778486
    Abstract: Embodiments of the present disclosure provide an antenna device and a base station comprising the same. The antenna device may comprise an antenna array with a radiation pattern including a main lobe and a back lobe; and a first reflector able to be configured to reflect a first part of energy of the back lobe to at least one direction different from a direction of the main lobe.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: October 3, 2023
    Assignee: Telefonaktiebolagget LM Ericsson (Publ)
    Inventors: Yi Geng, Cuichun Xia, Jianxiang Zhao, Hao Chen, Ningmin Liu
  • Patent number: 11777533
    Abstract: It provides a method (300) for polar decoding a received signal into a number, N, of bits with Successive Cancellation List, SCL. The method (300) includes: at the i-th level of a binary tree for decoding the i-th bit of the N bits, where 1?i?N: when the i-th bit is an information bit, calculating (310) a path metric for each of 2*Li-1 candidate paths at the i-th level, where Li-1 is an SCL size at the (i?1)-th level and L0=1; setting (320) an SCL size at the i-th level, Li, based on Li-1 and a statistical distribution of the path metrics calculated for the 2*Li-1 candidate paths; and selecting (330) Li surviving paths from the 2*Li-1 candidate paths based on their respective path metrics.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: October 3, 2023
    Assignee: Telefonaktiebolagget LM Ericsson (Publ)
    Inventors: Ang Feng, Ailing Xie, Yushi Zhang
  • Patent number: 11652674
    Abstract: In one example aspect, a method is provided of preparing a symbol for transmission, the method comprising applying a window function to a symbol to generate a modified symbol, wherein a property of the window function is based on a channel length of a transmission channel over which the modified symbol is to be transmitted, and causing the modified symbol to be transmitted over the transmission channel.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: May 16, 2023
    Assignee: Telefonaktiebolagget LM Ericsson (Publ)
    Inventors: Ang Feng, Tao Huang, Jinlai He, Nan Wang, Dong Wang, Guozhu Li
  • Patent number: 11616602
    Abstract: A method of operating a receiver in a communications network includes receiving a protocol data unit, PDU, from a transmitter, wherein the PDU carries at least part of a service data unit, SDU, determining that first and second non-adjacent segments of the SDU were not successfully received at the receiver, and requesting retransmission by the transmitter of a portion of the SDU from a beginning of the first non-adjacent segment to an end of the second non-adjacent segment.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: March 28, 2023
    Assignee: Telefonaktiebolagget LM Ericsson (Publ)
    Inventors: Jani-Pekka Kainulainen, Torsten Dudda, Samir Shah
  • Patent number: 11582825
    Abstract: Methods and apparatuses are disclosed for network triggered service restoration (NTSR). According to an embodiment, a serving gateway (SGW) obtains, from a mobility management entity (MME), information capable of indicating whether to apply NTSR for a terminal device. In response to detecting a failure of the MME, the SGW determines whether to apply NTSR for the terminal device based on the obtained information.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: February 14, 2023
    Assignee: Telefonaktiebolagget LM Ericsson (Publ)
    Inventors: Jinyin Zhu, Xiaoming Li, Zhansheng Wei
  • Patent number: 11470628
    Abstract: Method and apparatus of a terminal device and a base station for scheduled uplink transmission are provided in this disclosure. In a terminal device, an uplink grant from a base station is detected providing permission of data transmission from the terminal device. A coordination indicator identifying a resource coordination zone is transmitted to the base station along with the data. Then, controlling messages are sent from the terminal device for a further uplink grant to be issued from the base station, based on monitoring the resource coordination zone. Problem arising from channel interference can be resolved through the provided methods.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: October 11, 2022
    Assignee: Telefonaktiebolagget LM Ericsson (Publ)
    Inventors: Gen Li, Jung-Fu Cheng
  • Patent number: 11470500
    Abstract: A method may be provided to operate a wireless terminal in a Radio Access Network RAN. A plurality of Logical Channel Groups LCGs may be configured for the wireless terminal, and data may be buffered for more than one of the plurality of LCGs for the wireless terminal. A buffer status report BSR may be transmitted to a base station of the RAN, wherein the BSR indicates a size of an aggregation of data buffered for at least two of the plurality of LCGs for the wireless terminal. Related wireless terminals are also discussed.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: October 11, 2022
    Assignee: Telefonaktiebolagget LM Ericsson (Publ)
    Inventors: Min Wang, Gunnar Bergquist, Jinhua Liu, Mats Folke