Patents Assigned to Telefonaktiebolaget LM Ericsson (publ)
  • Publication number: 20220149499
    Abstract: A resonating structure and a dielectric filter having the same are disclosed. The resonating structure comprises a body, at least one set of negative coupling holes, and a conductive material layer. The body is made of a solid dielectric material and comprises at least two resonators. The negative coupling holes are formed at a connection between two adjacent resonators. Each set of negative coupling holes comprises a first blind hole and a second blind hole disposed on two opposite surfaces of the body respectively. The first blind hole and the second blind hole are offset from each other in a plane perpendicular to a direction along which the first or second blind hole is dug. The conductive material layer covers surfaces of the body and surfaces of the first blind hole and the second blind hole.
    Type: Application
    Filed: March 29, 2019
    Publication date: May 12, 2022
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Peiguang LU, Haitao LIU, Weidong WANG
  • Publication number: 20220150532
    Abstract: A method for determining a prediction block for decoding or encoding a current block in a current picture of a video stream. The method includes obtaining a pair of initial motion vectors, the pair of initial motion vectors comprising a first initial motion vector and a second initial motion vector. The method also includes determining whether or not to refine the initial motion vectors. The method further includes refining the initial motion vectors as a result of determining to refine the initial motion vectors.
    Type: Application
    Filed: March 5, 2020
    Publication date: May 12, 2022
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ruoyang YU, Du LIU
  • Publication number: 20220149921
    Abstract: There is provided mechanisms for beam selection. A method is performed by a network node. The method comprises performing a beam management procedure for at least two terminal devices. During the beam management procedure reference signals are transmitted in a beam sweep as performed in a set of beams. During the beam management procedure, each of the at least two terminal devices reports at least two beams in the set of beams for which the reference signals have been received with highest power. The method comprises selecting which beams to serve the at least two terminal devices based jointly on the reports and a mutual interference criterion for the at least two terminal devices.
    Type: Application
    Filed: February 28, 2019
    Publication date: May 12, 2022
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Andreas NILSSON, Sven PETERSSON, Niklas JALDÉN, Martin JOHANSSON
  • Publication number: 20220150795
    Abstract: A method performed by a network node to change a transport path for a user plane session in a radio communications network. The path prolongs along a first part between an antenna endpoint of a network node and a Packet Processing Function (PPF) instance serving the network node and a second part between the PPF instance and a Core Network (CN) endpoint. The network node identifies available CN endpoints in a CN, available PPF instances in a Radio Access Network (RAN) and of available antenna endpoints in the RAN that are available for the user plane session and comprises a number of possible transport paths for the user plane session. When detecting a change event related to the user plane session, the network node controls whether or not to change the transport path to any of the a number of possible transport paths for the user plane session.
    Type: Application
    Filed: August 29, 2017
    Publication date: May 12, 2022
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Oscar ZEE, Ulf Eric ANDRETZKY, Dan GREN, Gino MASINI, Tomas NYLANDER
  • Publication number: 20220150166
    Abstract: The disclosure relates to systems and methods enabling an SMF (208) to control new forwarding behavior in the UPF (206) to support locally switched and Nx-based forwarding.
    Type: Application
    Filed: December 18, 2019
    Publication date: May 12, 2022
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Yong YANG, Stefan ROMMER
  • Publication number: 20220150980
    Abstract: The present disclosure relates to a method performed by a UE (101) for handling 2-step and 4-step RA procedures in a communications system (100). The UE (101) transmits a msgA comprising a preamble and a msg3 to a network node (103). The UE (101) applies a 2-step RA procedure when transmitting msgA. Based on a criterion, the UE (101) determines to fallback from the 2-step RA procedure to a 4-step RA, procedure. The criterion is that a maximum number of msgA transmissions has been exceeded or receipt of an indicator indicating that the UE (101) should fallback from the 2-step RA procedure to the 4-step RA procedure.
    Type: Application
    Filed: December 3, 2019
    Publication date: May 12, 2022
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Jan CHRISTOFFERSSON, Min WANG
  • Publication number: 20220150803
    Abstract: Methods, apparatuses and computer program products for information transmitting and receiving in a wireless communication system. A method in a network device that serves a first cell with a first RAT comprises receiving, from a network controlling device, configuration information for a second cell operating with a second RAT different from the first RAT. The method further comprises broadcasting the configuration information to a terminal device, and the configuration information is encoded according to the second RAT.
    Type: Application
    Filed: January 24, 2022
    Publication date: May 12, 2022
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Rui FAN, Pal FRENGER
  • Publication number: 20220150981
    Abstract: A method in a terminal device. The method includes determining a DeModulation Reference Signal (DMRS) configuration for a Physical Uplink Shared Channel (PUSCH) and transmitting to a network device the PUSCH using the DMRS configuration along with a preamble, in a random access message.
    Type: Application
    Filed: January 10, 2020
    Publication date: May 12, 2022
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Zhipeng LIN, Robert Mark HARRISON, Mattias FRENNE
  • Publication number: 20220150846
    Abstract: A technique for controlling and selecting a coverage level (502, 504, 506) for a radio device connected or connectable to an access node over a radio medium is described. As to one method aspect of the technique, a state or usage of at least one of the radio medium and the access node is determined. Control information is transmitted to the radio device. The control information is indicative of at least one threshold value (512, 514) that depends on the determined state or usage for controlling the coverage level (502, 504, 506) selected by the radio device based on a comparison of power (510) of a downlink signal received over the radio medium from the access node with the at least one threshold value (512, 514).
    Type: Application
    Filed: March 15, 2019
    Publication date: May 12, 2022
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sara SANDBERG, David SANDBERG, Stefan WÄNSTEDT, Peter ÖKVIST, Magnus THURFJELL
  • Publication number: 20220150120
    Abstract: A new port state (called “Limited (Lim)”) and a new flag “Port-Limited”) are introduced. The Port-Limited flag is used to move a port of a network device from an Enabled state to the Limited state when the line protocol status for the port goes from down to up. In one embodiment, when the port is in the Limited port state, only a predefined set of protocols can work over the port.
    Type: Application
    Filed: February 27, 2019
    Publication date: May 12, 2022
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Géza GAÁL, Balázs VARGA, János SZABÓ
  • Publication number: 20220150122
    Abstract: Network policies for providing a network service are managed in a Network Function Virtualization (NFV) environment. The policies are obtained from service requests and specify placement and lifecycle management of Virtual Network Functions (VNFs). Attribute values are extracted from each policy. The extracted attribute values include at least a policy type value which specifies an action performed by the policy. The policies are grouped based on the attribute values. The policies in the same group share at least a common policy type value. The attribute values are compared within each group to detect conflicts and redundancies before deployment of the network service and in real-time after the network service is deployed. One or more of the obtained policies are removed to produce a policy repository free of the conflicts and the redundancies.
    Type: Application
    Filed: March 14, 2019
    Publication date: May 12, 2022
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Hanan SUWI, Nadjia KARA, Claes Göran Robert EDSTRÖM
  • Publication number: 20220149980
    Abstract: Methods and systems for dynamically selecting a link adaptation policy, LAP. In some embodiments, the method includes generating a machine learning, ML, model, wherein generating the ML model comprises providing training data to an ML algorithm. The method further includes using channel quality information, additional information, and the ML model to select a LAP from a set of predefined LAPs. In some embodiments, the additional information comprises: neighbor cell information about a second cell served by a second TRP, distance information indicating a distance between a UE and a first TRP, and/or gain information indicating radio propagation gain between the UE and the serving node. The method further includes the first TRP transmitting second data to the UE using the selected LAP.
    Type: Application
    Filed: March 18, 2019
    Publication date: May 12, 2022
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Christian SKÄRBY, Henrik NYBERG, Raimundas GAIGALAS, Tor KVERNVIK
  • Patent number: 11329390
    Abstract: A multiband antenna array includes a radiating element array having first and second rows of MIMO radiating elements. The two rows of MIMO radiating elements include a plurality of dual-polarised radiating elements. The radiating element array includes a dual-polarised low-band radiating element. A reflector array is provided, from which a) the dual-polarised radiating elements of the first and second rows of MIMO radiating elements and b) the dual-polarised low-band radiating element are spaced. The dual-polarised low-band radiating element includes at least four directive radiating element devices, which are each offset relative to one another by at least approximately 90° and delimit an accommodation space. In the accommodation space there are at least one or at least two dual-polarised radiating elements from the first row of MIMO radiating elements and at least one or at least two dual-polarised radiating elements from the second row of MIMO radiating elements.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: May 10, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Maximilian Göttl
  • Patent number: 11330430
    Abstract: The VOIP call security is enhanced using the caller's geographical location information, which is transmitted to the home network device using an unmodifiable header. The home network device checks the veracity of the caller's geographical location information to determine whether the caller is suspicious.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: May 10, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Nicolas Seyvet, Martin Ryan, Keven Wang
  • Patent number: 11330428
    Abstract: Core network equipment (20) in a wireless communication system transmits control plane signaling (22) to a user equipment (16) which receives that control plane signaling (22). The control plane signaling (22) indicates a privacy key (24) with which a subscriber identifier (e.g., an international mobile subscriber identity, IMSI) associated with the user equipment (16) is to be encrypted or decrypted. The control plane signaling (22) may be non-access stratum, NAS, signaling. The privacy key (24) may be a public key of a home network associated with the subscriber identifier.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: May 10, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Christine Jost, Peter Hedman, Monica Wifvesson
  • Patent number: 11329399
    Abstract: There is provided an antenna arrangement. The antenna arrangement comprises a baseband chain. The antenna arrangement comprises an antenna array. The antenna array is coupled to the baseband chain and divided into a first sub-array and a second sub-array. The first sub-array comprises antenna elements of only a first polarization and the second sub-array comprises antenna elements of only a second polarization. The first sub-array and the second sub-array have their antenna elements at identical locations relative each other, except for the antenna elements of the first sub-array and the antenna elements of the second sub-array being translated, but not rotated, relative each other.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: May 10, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sven Petersson, Andreas Nilsson
  • Patent number: 11329668
    Abstract: A method performed by an encoder of a base station system, for handling a data stream for transmission over a transmission connection between a remote unit and a base unit of the base station system, the remote unit being arranged to transmit wireless signals to, and receive from, mobile stations. The method comprises quantizing a plurality of IQ samples, converting the quantized plurality of IQ samples to IQ predictions, calculating per sample a difference between the quantized plurality of IQ samples and the IQ predictions in order to create IQ prediction errors. The method further comprises quantizing the IQ predictions or the IQ prediction errors, entropy encoding the IQ prediction errors and sending the entropy encoded IQ prediction errors over the transmission connection to a decoder of the base station system. The method can be performed by a decoder.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: May 10, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Miguel Berg, Chenguang Lu, Per Ola Börjesson, Daniel Cederholm, Elmar Trojer
  • Patent number: 11330453
    Abstract: Embodiments described herein relate to methods and apparatus for performing cell measurements. A method in a wireless device comprises receiving a first control message from a base station instructing the wireless device to transition from a first mode of operation to a second mode of operation; and responsive to the control message comprising information relating to at least one first cell measurement parameter, performing a cell measurement according to the at least one first cell measurement parameter.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: May 10, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Icaro L. J. da Silva
  • Patent number: 11330545
    Abstract: In one aspect of the teachings herein, a transmitter transmits synchronization signals according to one or more defined transmission characteristics that enable a receiver to distinguish the type of transmitter and/or the type of carrier used to convey the synchronization signals. Different types of transmitters reuse at least some of the same synchronization signal sequences and generation algorithms, but use different transmission parameters to impart one or more recognizable characteristics to the transmitted synchronization signals. In turn, an appropriately configured receiver “knows” which characteristics are associated with which transmitter and/or carrier types. For example, wireless devices operating in a wireless communication network transmit device-generated synchronization signals that reuse at least some of the same sequences used by network base stations for the transmission of network synchronization signals.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: May 10, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventor: Stefano Sorrentino
  • Patent number: 11329671
    Abstract: A method for use in a wireless transmitter of interleaving coded bits includes: determining an integer number (M) of polar coded bits {e(0), . . . , e(M?1)} for wireless transmission; determining a smallest integer number (T) such that T(T+1)/2>=M; and determining a one-dimensional interleaving index array, interleavingId( ), that represents the column by column non-zero elements of a two-dimensional matrix. The two-dimensional matrix includes a hypothetical T by T matrix containing the polar coded bits {e(0), . . . , e(M?1)} input row by row without using the lower right corner elements of the T×T matrix. The method further includes: interleaving the polar coded bits {e(0), . . . , e(M?1)} using the one-dimensional interleaving index array resulting in the output sequence {f(0), . . . , f(M?1)} wherein f(i)=e(interleavingId(i)); and transmitting the interleaved polar coded bits to a wireless receiver.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: May 10, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Qingchao Liu, Xixian Chen, Yashar Nezami