Patents Assigned to Telefonaktiebolaget LM Ericsson
  • Publication number: 20200170061
    Abstract: There is provided a method for establishing a connection between a Neutral Host (NH) network and one or more virtual radio access networks (vRANs), under a service level agreement (SLA) therebetween. The method comprises: sending a message to the one or more vRANs, the message including an identity of the NH network and at least a first radio parameter; in response to the message, receiving an identity of the one or more vRANs and at least a second radio parameter; and establishing the connection between the NH network and the one or more vRANs, based on the identity of the one or more vRANs, the identity of the NH network and one of the at least first radio parameter and the at least second radio parameter. The method is implemented in a network node, such as a Distributed Unit of a gNB.
    Type: Application
    Filed: June 6, 2018
    Publication date: May 28, 2020
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventor: Christopher Richards
  • Publication number: 20200169009
    Abstract: A single polarized radiator operating within a frequency range, the radiator comprising multiple active dipoles configured to be arranged a predetermined distance from a ground plane. Each active dipole comprising a first active element having first electrical characteristics and a second active element having second electrical characteristics, which first and second active elements are equal in length and provided with a respective feeding point. In each active dipole, first electrical characteristics differs from second electrical characteristics, the length of each active element is selected based on an upper frequency of the frequency range, and the first active element and/or the second active element of each active dipole is/are configured to be capacitively coupled to an active element of an adjacent active dipole.
    Type: Application
    Filed: May 12, 2017
    Publication date: May 28, 2020
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Christos KOLITSIDAS, Stefan ENGSTRÖM, Lars JONSSON
  • Publication number: 20200169356
    Abstract: A method is provided in a user equipment for retransmitting a packet data unit, PDU, that has previously been transmitted in an uplink to a receiver, the previously transmitted PDU comprising one or more service data units, SDUs. The method comprises receiving an uplink grant for retransmission, wherein the uplink grant for retransmission comprises a time transmission interval, TTI, duration associated therewith. The method comprises determining whether a SDU of the one or more SDUs of the previously transmitted PDU comprises a TTI duration which is not suited to the TTI duration associated with the uplink grant for retransmission, and, if so repackaging the PDU for retransmission.
    Type: Application
    Filed: December 18, 2017
    Publication date: May 28, 2020
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Min WANG, Jan CHRISTOFFERSSON, Mårten ERICSON
  • Publication number: 20200169345
    Abstract: A method for assisting in synchronization of slave clocks in a communication network comprises receiving, in a node of the communication network, a message comprising a value of a synchronization accuracy (?rec) of a first upstream node in the communication network. A value of an accuracy (?link) of a link latency unbalance between forward and reverse signalling in a link on which the node received the message is obtained. A value of a total synchronization accuracy (?tot) of the node comprises at least the accuracy (?link) of the link latency unbalance of the link on which the node received the message is calculated. A node for assisting in synchronization of slave clocks in a communication network is also presented.
    Type: Application
    Filed: May 12, 2017
    Publication date: May 28, 2020
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Stefan ANDERSSON
  • Publication number: 20200169311
    Abstract: The present disclosure relates to a method for determining a best antenna beam. The method includes obtaining a training model, wherein the training model has been trained to provide a best antenna beam based on a plurality of feedback values, determining a first plurality of feedback values indicative of partial estimates of channels of a first plurality of wireless signals and determining a best antenna beam, based on the first plurality of feedback values and the obtained training model.
    Type: Application
    Filed: August 30, 2017
    Publication date: May 28, 2020
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Johan OTTERSTEN, Maria FRESIA, Hugo TULLBERG
  • Publication number: 20200169308
    Abstract: Methods, devices and computer programs for determining new transmit directions to use for beamformed transmissions in case the link quality of an existing direction falters. A transmitting communication device and a receiving communication device cooperate via a beam tracking procedure to determine a new suitable transmit direction to use for upcoming beamformed transmissions. Information relating to the beam tracking procedure is communicated over an existing link that enables communication between the transmitting and receiving communication devices. The receiving communication device provides the transmitting communication device with information about a beam scan performed in order to detect tracking beams transmitted by the transmitting communication device. This information allows the transmitting communication device to determine suitable transmit directions to use.
    Type: Application
    Filed: January 29, 2020
    Publication date: May 28, 2020
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Torbjörn WIGREN, Oskar MAURITZ
  • Patent number: 10667299
    Abstract: A network node, wireless device and methods for provisioning uplink transmission are provided. In one embodiment, the network node includes node processing circuitry configured to: transmit at least one random access (RA) message and receive a response message. The at least one RA message includes an indication of radio resources, wherein the radio resources are valid in a plurality of time locations, for uplink transmission to respond to the at least one RA message. The response message is received according to one of the plurality of time locations for uplink transmission.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: May 26, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Gustav Wikström, Mattias Bergström, Magnus Stattin
  • Patent number: 10667024
    Abstract: A transport network is configured to connect one or more optical rings of optical add and drop devices with one or more digital units in a radio access network. The transport network comprises a first electronic cross-connect and a second electronic cross-connect. A switch is provided for connecting the first electronic cross-connect and/or the second electronic cross-connect to the one or more digital units. The first and second electronic cross-connects are each coupled to at least one of the one or more optical rings of optical add and drop devices.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: May 26, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Paola Iovanna, Francesco Testa
  • Patent number: 10663556
    Abstract: A method performed in a server node associated with a cellular communication system is disclosed. The method is for validation of a first position indication of a wireless communication device, wherein the wireless communication device is adapted to operate in connection with the cellular communication system. The first position indication is obtained via the wireless communication device by a first positioning system. The method comprises obtaining a serving cell identification of the wireless communication device, obtaining a second position indication of the wireless communication device based on the serving cell identification, and determining whether the first position indication is valid based on whether a metric based on the first and second position indications meets a validation criterion.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: May 26, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Bengt Lindoff, Lars Andersson, Magnus Åström, Patrik Ekdahl, Fredrik Nordström, Andres Reial
  • Patent number: 10665917
    Abstract: A method and system for providing a switchable waveguide are provided. According to some aspects, a switched waveguide has a waveguide structure having a reflector located within the waveguide structure. The switched waveguide also includes a radio frequency (RF) switch configured to connect and disconnect the reflector to the waveguide structure.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: May 26, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Peter Frank, Joel Hadden, Roland Smith, Jim Wight
  • Patent number: 10667160
    Abstract: A method performed by a wireless communications device for measurement reporting associated with a first wireless communications network to a network node operating in a second wireless communications network. The first and second wireless communications networks operate according to different RATs. The wireless communications device receives an indication of one or more radio access network nodes operating in the first wireless communications network, among which one or more radio access network nodes a mobility of the wireless communications device is restricted. The wireless communications device further determines which radio access network nodes operating in the first wireless communications network are to be used for measurement reporting to the network node, based on the indication of the one or more radio access network nodes among which the mobility of the wireless communications device is restricted in the first wireless communications network.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: May 26, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Mattias Bergström, Torsten Dudda, Helka-Liina Määttanen
  • Patent number: 10667270
    Abstract: According to some embodiments, a method in a wireless network element of transmitting a transport block comprises determining a modulation coding scheme for a transmission of the transport block; determining a category type of a wireless device that will transmit or receive the transport block; determining, using the category type of the wireless device, an encoding soft buffer size (NIR) for the transport block; adjusting, using the modulation coding scheme, the encoding soft buffer size (NIR) by a factor (KH); encoding the transport block according to the determined modulation coding scheme and the adjusted encoding soft buffer size; and transmitting the transport block. In particular embodiments, the determined modulation coding scheme is 256 Quadrature Amplitude Modulation (256QAM) and the factor (KH) is 4/3.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: May 26, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Daniel Larsson, Jung-Fu Cheng, Yu Yang, Meng Wang
  • Patent number: 10666302
    Abstract: The present disclosure relates to a wireless communication network node (1) comprising an antenna arrangement (2), a transmitter arrangement (3) that is arranged to transmit output signals, and a receiver arrangement (4) that is arranged to receive input signals. The antenna arrangement (2) comprises at least one balanced antenna element (5) and a balanced antenna connection (6) that in turn comprises a first antenna branch (7) and a second antenna branch (8). The node (1) further comprises a power divider (9) that is arranged to divide the output signal in a first branch (10) and a second branch (11). The first branch (10) is connected to the first antenna branch (7) via a first amplifier arrangement (12) and a first power distribution device (13). The second branch (11) is connected to the second antenna branch (8) via a phase inverting device (14), a second amplifier arrangement (15) and a second power distribution device (16).
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: May 26, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventor: Bo Granstam
  • Patent number: 10667284
    Abstract: The embodiments disclose a method for scheduling radio resources in a radio communication network. The method comprises obtaining two or more MAC modes to be used for scheduling radio resources; and partitioning the radio resources into multiple resource blocks, each of which associates with one of the two or more MAC modes. Each of the two or more MAC modes is used to schedule associated resource block. Meanwhile, the embodiments also disclose a method for transmitting traffic in the radio communication network. The method comprises selecting a MAC mode from a list of active MAC modes for the traffic. Each MAC mode in the list of active MAC modes associates with respective resource blocks and is used to schedule the associated resource block. The traffic is transmitted over resource scheduled by the selected MAC mode.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: May 26, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Virgile Garcia, Pål Frenger, Zhan Zhang
  • Patent number: 10665033
    Abstract: An optical see-through head-mounted display device includes a see-through lens which combines an augmented reality image with light from a real-world scene, while an opacity filter is used to selectively block portions of the real-world scene so that the augmented reality image appears more distinctly. The opacity filter can be a see-through LCD panel, for instance, where each pixel of the LCD panel can be selectively controlled to be transmissive or opaque, based on a size, shape and position of the augmented reality image. Eye tracking can be used to adjust the position of the augmented reality image and the opaque pixels. Peripheral regions of the opacity filter, which are not behind the augmented reality image, can be activated to provide a peripheral cue or a representation of the augmented reality image. In another aspect, opaque pixels are provided at a time when an augmented reality image is not present.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: May 26, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Avi Bar-Zeev, Bob Crocco, Alex Aben-Athar Kipman, John Lewis
  • Patent number: 10666346
    Abstract: Embodiments herein relate to a method performed by a wireless device (10) for managing beam-formed communication in a wireless communication network (1), wherein the wireless device (10) is configured to handle separate directional device beams at the wireless device (10). The wireless device (10) forms an active set for a first device beam out of the separate directional device beams of the wireless device by selecting one or more first network beams out of a plurality of separate directional network beams of the wireless communication network (1). The one or more first network beams are selected based on received signal strength or quality, and the active set is to be used for transmission or reception of data. The wireless device selects a first network beam in the active set as a preferred network beam for transmission or reception of data.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: May 26, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Andreas Bergström, Håkan Andersson, Johan Furuskog, Tomas Sundin, Niclas Wiberg, Qiang Zhang
  • Patent number: 10667141
    Abstract: A method, system and computer for determining placement of at least one antenna of customer premises equipment in a fixed wireless access network are disclosed. According to one aspect, a method includes generating a map of signal strength for each of a plurality of possible antenna locations among one or more buildings. The method further includes identifying a percentage of a building having a level of wireless network coverage. The method also includes identifying a location of an antenna based on the map of signal strength and the identified percentage.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: May 26, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Debasish Sarkar, Svemir Polchert, Ayan Sen, Shikha Singh
  • Patent number: 10666231
    Abstract: The present disclosure relates to a balun arrangement (1, 1?, 1?) comprising a single-ended port (2, 2; 17, 26), a differential port arrangement (61), a coupled first and second transmission line section (5, 6) constituting a first coupled pair (7), and a third and fourth coupled transmission line section (8, 9) constituting a second coupled pair (10). The first transmission line section (5) is connected between a first coupled pair first port (11) and the third transmission line section (8), the second transmission line section (6) is connected between a first coupled pair second port (12) and the first differential port (3), the third transmission line section (8) is connected between a second coupled pair first port (13) and the first transmission line section (5), and the fourth transmission line section (9) is connected between a second coupled pair second port (14) and the second differential port (4).
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: May 26, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Kristoffer Andersson
  • Patent number: 10665958
    Abstract: A beamforming receiver 100 for receiving multiple radio signals and generating multiple output beam signals is disclosed. The beamforming receiver (100) comprises multiple beam parameter inputs (130) to receive multiple beam parameters and an element array (110) comprising a plurality of elements (120). The beamforming receiver 100 further comprises a loading unit 140 coupled to each element 120 in the element array 110. The beamforming receiver 100 further comprises a reference clock generating and splitting circuit 150 to generate and distribute reference clock signals for each element 120.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: May 26, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventor: Fenghao Mu
  • Patent number: 10666333
    Abstract: There is provided mechanisms for signal transmission diversity at an antenna array of a radio transceiver device. The antenna array has two physical antenna ports. A method is performed by the radio transceiver device. The method comprises creating two virtual antenna ports for each of the two physical antenna ports, resulting in four virtual antenna ports. The method comprises transmitting the signal from the four virtual antenna ports towards another radio transceiver device over four different radio propagation channels, one radio propagation channel per virtual antenna port.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: May 26, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sven Petersson, Fredrik Athley, Andreas Nilsson