Patents Assigned to LM Ericsson (publ)
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Patent number: 11968814Abstract: The present disclosure relates to a waveguide gasket arrangement arranged for electrically sealing a waveguide interface between a first waveguide end and a second waveguide end, where the waveguide gasket arrangement comprises a first plurality of electrically conducting members connected to a first common structure along a first circumference. The waveguide gasket arrangement further comprises a second plurality of electrically conducting members connected to a second common structure along a second circumference.Type: GrantFiled: June 26, 2019Date of Patent: April 23, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Göran Snygg, Torbjörn Westin, Henrik Pettersson, Gilbert Johansson, Jörgen Lundgren, Martin Fagerström, Cecilia Lundin, Ove Persson
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Patent number: 11968805Abstract: A heatsink with an air-partitioning baffle. In one embodiment, the heatsink comprises a plurality of fins defining a plurality of channels, an inlet channel that is at least partially defined by the plurality of fins and extends across the plurality of channels, and a baffle at least partially within the inlet channel. The baffle is configured to direct a first fluid flow, such as warm air, from a first portion of the plurality of channels and to direct a second fluid flow, such as cooling air, through at least one inlet of the inlet channel to a second portion of the plurality of channels.Type: GrantFiled: November 2, 2018Date of Patent: April 23, 2024Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Stefan Skoglund, Adrianus Van Gaal, Elisabet Aldurén
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Patent number: 11968046Abstract: A device (150) is arranged on a source side of a wireless link (50) and receives data traffic from one or more source devices (201, 202, 203). The device (150) forwards the data traffic via the wireless link (50) and via a further device (11), which is arranged on a destination side of the wireless link (50), towards one or more destination devices (21, 22, 23, 24). The device (150) receives redundancy information from the further device (11). The redundancy information indicates redundant payload which is common to multiple data frames in the data traffic forwarded by the device (150). Based on the redundancy information, the device (150) removes the indicated redundant payload from at least a part of the data traffic to be forwarded by the device (150).Type: GrantFiled: November 6, 2019Date of Patent: April 23, 2024Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Norbert Reider, Hubertus Munz, Sándor Rácz, Géza Szabó
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Patent number: 11968005Abstract: Method and device(s) for providing precoder selection policy for a multi-antenna transmitter arranged to transmit data over a communication channel of a wireless communication network. Machine learning in the form of reinforcement learning is applied involving adaptation of an action value function configured to compute an action value based on information indicative of a precoder of the multi-antenna transmitter and of a state relating to at least the communication channel. The adaptation being further based on reward information provided by a reward function, indicative of how successfully data is transmitted over the communication channel, and the precoder selection policy is provided based on the adapted action value function resulting from the reinforcement learning.Type: GrantFiled: September 12, 2019Date of Patent: April 23, 2024Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Heunchul Lee, Maksym Girnyk
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Patent number: 11968134Abstract: A method, in a wireless device that supports carrier aggregation (CA), the method comprising: receiving a configuration message, from a wireless network node, indicating that the wireless device is to directly activate two or more secondary cells. The method further comprises determining that at least a first one of the two or more secondary cells is to be activated by a first time and that at least a second one of the two or more secondary cells is to be activated by a second time, following the first time. The method also comprises activating the first one of the secondary cells by the first time and subsequently activating the second one of the secondary cells by the second time.Type: GrantFiled: August 9, 2019Date of Patent: April 23, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Muhammad Kazmi, Robert Karlsson
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Patent number: 11968586Abstract: A network node of a wireless communication network provides information to a User Equipment (UE) that allows the UE to adapt it radio measurements with respect to the network, to account for “link changes.” Link changes are service-link and/or feeder-link changes arising from motion by the satellite(s) included in the Radio Access Network (RAN) portion of the network. The UE uses the provided information to adapt its radio measurements in conjunction with the link changes. Among the several advantages of accounting for satellite link changes in the manner contemplated are any one or more of reduced signaling going between the UE and the network, reduced battery consumption at the UE, mitigation of the effects of the link changes on the radio measurements, avoidance of spurious measurements, and an effective “automation” of the timed changeover by the UE to new measurement configurations, coincident with the occurrence of link changes.Type: GrantFiled: October 3, 2019Date of Patent: April 23, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Helka-Liina Määttanen, Björn Hofström, Henrik Rydén, Jonas Sedin, Sebastian Euler, Talha Khan, Xingqin Lin, Zhenhua Zou
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Patent number: 11968108Abstract: 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: GrantFiled: February 22, 2019Date of Patent: April 23, 2024Assignee: Telefonaktiebolagget LM Ericsson (Publ)Inventors: Jinfeng Zhao, Xianmin Li, Liang Zhou
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Patent number: 11968547Abstract: A base station or other network node configures a network transmission in dependence on a directional scanning reception ability of a wireless communication device targeted by the transmission. An example transmission configuration is selecting or restricting which Transmission/Reception Point to use for the transmission or selecting or restricting the beamforming configuration to use for the transmission. The device complements operations in the wireless communication network by indicating its directional scanning reception ability in initial signaling, such as used for random access, or in Radio Resource Control signaling, or both.Type: GrantFiled: April 14, 2022Date of Patent: April 23, 2024Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)Inventors: Andres Reial, Icaro L. J. Da Silva, Johan Rune, Henrik Sahlin
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Patent number: 11968067Abstract: A method of signalling in a Wireless Local Area Network, WLAN, includes transmitting a signal having a physical layer data unit via a wireless channel of the WLAN using plural subcarriers spaced across plural symbols, the physical layer data unit having a data packet and a preamble, wherein the preamble has a synchronisation part having a channel estimation part. The channel estimation part has N training symbols, where N is an integer greater than 1, the N training symbols have synchronisation information for synchronising a second wireless device with the first wireless device, the synchronisation information having an offset value, and synchronisation information transmitted in second and subsequent training symbols is transmitted using offset subcarriers, the offset subcarriers being frequency offset with respect to reference subcarriers used to transmit synchronisation information in a first training symbol, the frequency offset being equal to the offset value.Type: GrantFiled: July 10, 2020Date of Patent: April 23, 2024Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Miguel Lopez, Leif Wilhelmsson
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Patent number: 11968535Abstract: The present disclosure relate to a method performed by a UE (102) for handling an invalid SI signature in a communication system. The UE obtains SI and an associated SI signature for a cell. The UE (102) determines if the obtained SI signature is valid or invalid. If the signature is valid, the UE (102) determines to use the cell. If the SI signature is invalid, the UE (102) determines if the UE (102) is configured to bar cells or not. If the SI signature is invalid and if the UE (102) is not configured to bar cells with invalid SI signature, the UE (102) determines to use the cell. If the SI signature is invalid and the UE (102) is configured to bar cells with invalid SI signature, the UE (102) determines to bar the cell and select another cell to use.Type: GrantFiled: May 26, 2020Date of Patent: April 23, 2024Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Oscar Ohlsson, Prajwol Kumar Nakarmi, Icaro Leonardo Da Silva
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Patent number: 11968143Abstract: There is provided mechanisms for assigning physical resource blocks to base stations in a cell deployment for transmission of downlink reference signals. A method is performed by a network node. The method comprises obtaining reports from terminal devices in the cell deployment, each report indicating location-wise signal strength measurements of base stations for one of the terminal devices. The method comprises determining, based on the obtained reports, whether to group the physical resource blocks in four sets of physical resource blocks or to group the physical resource blocks in less than four sets of physical resource blocks. The method comprises assigning the determined four or less sets of physical resource blocks to the base stations such that no two adjacent cells in the cell deployment are assigned to the same set of physical resource blocks. The method comprises initiating transmission of the downlink reference signals from the base stations in the assigned physical resource blocks.Type: GrantFiled: January 11, 2019Date of Patent: April 23, 2024Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Chunhui Liu, Anders Landström, Qi Zhang
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Patent number: 11968688Abstract: There is disclosed a method of operating a network node in a radio access network, the method includes transmitting a resource allocation message comprising a bit field, the resource allocation message being transmitted for reception in a common search space to which a first bandwidth part with a first unit size of resource allocation is associated. The bit field allocates resources in a second bandwidth part with a second unit size of resource allocation. The disclosure also pertains to related devices and methods.Type: GrantFiled: April 14, 2022Date of Patent: April 23, 2024Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Axel Guthmann, Robert Baldemair, Daniel Chen Larsson, Erik Dahlman, Sorour Falahati, Stefan Parkvall
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Patent number: 11968748Abstract: A method performed by a network node, for handling User Equipment, UE, capabilities of a UE in a wireless communications network is provided. The network node sends (501) to the AMF node (130), a first indication indicating whether or not the network node (110) has capabilities to store UE capabilities associated with the UE capability ID. The network node receives (502) from an AMF node, a second indication indicating whether or not UE capabilities associated with a capability identity of the UE, UE capability ID, are UE available in the AMF node. The network node decides (503) whether explicit UE capabilities associated with the UE capability ID shall be retrieved from the UE or the AMF node based on the received first and second indication.Type: GrantFiled: October 31, 2019Date of Patent: April 23, 2024Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Christofer Lindheimer, Paul Schliwa-Bertling, Mikael Wass
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Patent number: 11968520Abstract: In one aspect, there is a method for rendering a spatially-heterogeneous audio element. In some embodiments, the method includes obtaining two or more audio signals representing the spatially-heterogeneous audio element, wherein a combination of the audio signals provides a spatial image of the spatially-heterogeneous audio element. The method also includes obtaining metadata associated with the spatially-heterogeneous audio element, the metadata comprising spatial extent information indicating a spatial extent of the audio element. The method further includes rendering the audio element using: i) the spatial extent information and ii) location information indicating a position (e.g. virtual position) and/or an orientation of the user relative to the audio element.Type: GrantFiled: December 20, 2019Date of Patent: April 23, 2024Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Tommy Falk, Werner De Bruijn, Erlendur Karlsson, Tomas Jansson Toftgård, Mengqiu Zhang
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Patent number: 11968009Abstract: There are provided mechanisms for generating a beam set. A method is performed by a radio transceiver device. The method comprises generating the beam set as combination of at least two beam pairs. Each beam pair is formed by two respective beams with orthogonal polarizations. The two beams have their pointing directions separated by a first angular separation delta1>0. Neighbouring beam pairs have their pointing directions separated by a second angular separation delta2>0. The first angular separation delta1 is a function of the second angular separation delta2.Type: GrantFiled: January 29, 2019Date of Patent: April 23, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventor: Henrik Jidhage
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Patent number: 11964187Abstract: We generally describe a detection system and a method for tracking a moving object. The detection system (101) comprises a sensor (102) which is configured to sense an event. The system further comprises a trigger detection module (108a) which is coupled to the sensor (102), wherein the trigger detection module (108a) is configured to identify the sensed event to be a trigger event. The system further comprises an imaging device (114) for imaging the trajectory of an object, and an imaging device control unit (112) for controlling the imaging device (114). The imaging device control unit (112) is coupled to the trigger detection module (180a), wherein the imaging device control unit (112) is configured to control the imaging device (114) in response to a trigger event being identified by the trigger detection module (108a).Type: GrantFiled: January 26, 2017Date of Patent: April 23, 2024Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Péter Hága, Nóra Fenyvesi, Zsófia Kallus
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Patent number: 11968729Abstract: Embodiments of the present disclosure relate to a method and an apparatus for allocating a PDU session ID for a terminal device. The method comprises: selecting (S101), for a terminal device, a protocol data unit session identity, PDU session ID, from a group of PDU session IDs. The group of PDU session IDs are not allocated to the terminal device. According to the embodiments of the present disclosure, the network node may select, for the terminal device, a PDU session ID from a group of PDU session IDs, which are not allocated to the terminal device yet. Thus, any newly selected PDU session ID may be ensured as unique.Type: GrantFiled: December 27, 2019Date of Patent: April 23, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Jinyin Zhu, Juying Gan
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Patent number: 11968588Abstract: Embodiments include methods performed by a network node, in a radio access network, RAN, that is a target node candidate for a mobility operation of a user equipment, UE. Such methods include receiving, from a source node serving the UE, a request to prepare a mobility procedure for the UE in relation to a candidate target cell associated with the network node. The request can include characteristics associated with a data connection of the UE. Such methods include determining that the UE can be admitted for the requested mobility procedure based on the characteristics, and determining to activate bicasting of the data connection. Different bicasting modes can be selected. Such methods also include transmitting, to the source node, a response that includes a bicasting configuration associated with the UE. Other embodiments include complementary methods performed by source nodes, as well as network nodes configured to perform such methods.Type: GrantFiled: December 2, 2019Date of Patent: April 23, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Ali Parichehrehteroujeni, Pradeepa Ramachandra, Sakib Bin Redhwan, Reza Moosavi, Nicklas Johansson, Sofia Ek
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Patent number: 11968385Abstract: An object of the embodiments is to achieve an improved reference picture handling. That is achieved by taking into account whether the reference pictures in the decoded picture buffer are long-term reference pictures or short-term reference pictures when determining how they should be marked when the information of the reference picture set is received. The reference pictures are marked as “used for short-term reference” or “used for long-term reference” in the Decoded Picture Buffer (DPB) depending on whether they are included as short-term pictures or long-term pictures in the RPS of a current picture.Type: GrantFiled: November 28, 2022Date of Patent: April 23, 2024Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Jonatan Samuelsson, Rickard Sjöberg
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Patent number: 11968017Abstract: A method of operating a lower-layer split central unit, LLS-CU, includes allocating a plurality of downlink signals to a plurality of physical resource blocks, PRBs, of a physical downlink channel, generating a data-associated control information, DACI, message including a section description associated with the plurality of downlink signals, the DACI message including an indication of a plurality of sets of beamforming weights to be applied by a radio unit, RU, when transmitting the plurality of downlink signals to the UE, transmitting the DACI message to the RU, and transmitting the plurality of downlink signals to the RU for transmission to the UE.Type: GrantFiled: November 9, 2022Date of Patent: April 23, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventor: Jacob Österling