Patents Assigned to Telefonaktiebolaget LM Ericsson (publ)
  • Publication number: 20190158030
    Abstract: An amplifier arrangement (200) for amplifying input signals and a method for operating the amplifier arrangement are disclosed. The amplifier arrangement (200) comprises a main amplifier circuit (210) having an input and an output; a first (221) and second (222) auxiliary amplifier circuits each having an input and an output, wherein each of the first (221) and second (222) auxiliary amplifier circuits being selectively operable to operate in combination with the main amplifier circuit (210). The amplifier arrangement (200) further comprises a single hybrid coupler circuit (230) having a first port (221) being coupled to the output of the main amplifier circuit (210), a second port (232) being coupled to the output of the first auxiliary amplifier circuit (221), a third port (233) being coupled to the output of the second auxiliary amplifier circuit (222) and a fourth port (234) being coupled to the load (240) of the amplifier (200).
    Type: Application
    Filed: May 3, 2016
    Publication date: May 23, 2019
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Rui HOU, Andre BLEKER, Lars RIDELL VIRTANEN
  • Publication number: 20190158617
    Abstract: A network management architecture referred to as the Control/Orchestration/Management/Policy/Analytics, COMPA, architecture. The COMPA architecture functions to simplify and automate the operations (both management and business process) of a network. In one aspect, the COMPA architecture provides controlled access to functionality provided by different responsibility domains using cooperating service access control, SAC, agents.
    Type: Application
    Filed: July 18, 2016
    Publication date: May 23, 2019
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Bo ÅSTRÖM, Stephen TERRILL
  • Publication number: 20190158237
    Abstract: A method performed by a network node for managing transmission of Cell Reference Symbols, CRS, wherein the network node 110 operates one or more cells and the network node 110 is configured to transmit the CRS in a first bandwidth mode. When the network node 110 has identified a cell 130 which is not actively serving any UEs 120, also referred to as an empty cell, the network node 110 applies (302) a reduced CRS bandwidth mode in the first cell 130 in relation to the first bandwidth mode. By applying (302) a reduced CRS bandwidth mode in the empty cell 130, the overall interference of the CRS from the empty cell 130 is reduced, thereby enhancing the performance in cells actively serving UEs 120.
    Type: Application
    Filed: January 22, 2019
    Publication date: May 23, 2019
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Tomas LAGERQVIST, Walter MÜLLER, Christian SKÄRBY
  • Publication number: 20190158453
    Abstract: There is provided mechanisms for handling registration of data packet traffic for a wireless device in a communications network. A method is performed by a core network node. The method comprises registering an amount of data packet traffic in the communications network for the wireless device, wherein each data packet comprises an address of the wireless device, wherein the address is mapped to an identity of the wireless device, wherein the address comprises a first part defining an identity of a local network gateway of the wireless device and a second part defining the identity of the wireless device, and wherein selection of the second part is independent from the first part and the identity of the local network gateway. The method comprises mapping the amount of data packet traffic to the identity of the wireless device.
    Type: Application
    Filed: April 14, 2016
    Publication date: May 23, 2019
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Per STÅHL, John FORNEHED, Ari KERÄNEN, Anders NOHLGREN, Bernard SMEETS
  • Publication number: 20190155312
    Abstract: A node (121-123) of a wireless communications network (120) and an aerial vehicle (110), such as an Unmanned Aerial Vehicle (UAV), a drone, an aircraft, or a helicopter, comprising a communications module (111) are provided. The node is operative, in response to detecting that the aerial vehicle enters a pre-defined geographical region (221-227) within a coverage area of the wireless communications network, to transmit a cell broadcast message (126; 201-204) to the aerial vehicle. The aerial vehicle is operative to receive the cell broadcast message from an access node (121) of the wireless communications network, and, in response thereto, correct its flight path (211-214) based on the received cell broadcast message. Preferably, the cell broadcast message comprises at least one, or a combination, of an instruction, a limitation, a restriction, a direction or a change thereof, a bearing or a change thereof, an altitude or a change thereof, an aerial vehicle type, and an aerial vehicle identity.
    Type: Application
    Filed: April 11, 2016
    Publication date: May 23, 2019
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Kwan To TAM
  • Publication number: 20190158106
    Abstract: A pipelined ADC (25) is disclosed, comprising a first sub ADC (50) and a second sub ADC (60). The second sub ADC (60) is configured to receive, as an input, an analog residue generated by the first sub ADC (50). The first sub ADC (50) is configured to operate in a first conversion phase, in which it generates a digital output of the first sub ADC (50), and a second conversion phase, in which it generates the analog residue. The first sub ADC (50) comprises a reference-voltage generator circuit (52) configured to generate a reference voltage (vref) of the first sub ADC (50) and having a first mode of operation and a second mode of operation, in which the noise power of the reference voltage (vref) is less than in the first mode of operation. The reference-voltage generator circuit (52) is configured to operate in its first mode of operation in the first conversion phase and in its second mode of operation in the second conversion phase.
    Type: Application
    Filed: July 4, 2016
    Publication date: May 23, 2019
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mattias Palm, Daniele Mastantuono, Roland Strandberg
  • Patent number: 10295569
    Abstract: The present invention relates to a system, a measurement probe and a method for measuring an electrical property of an electrical circuit, comprising measuring the electrical property by means of a measurement probe connected to the electrical circuit, converting the measured electrical property of the electrical circuit to an optical signal. The method further comprises sending the optical signal, and receiving the optical signal by means of an image sensor configured to record images comprising the measurement probe that transmits the optical signal. The method further comprises processing the recorded images in order to decode the measurement data from the received optical signal.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: May 21, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Sverker Sander, Björn Olsson
  • Patent number: 10297264
    Abstract: The invention relates to a codec and a signal classifier and methods therein for signal classification and selection of a coding mode based on audio signal characteristics. A method embodiment to be performed by a decoder comprises, for a frame m: determining a stability value D(m) based on a difference, in a transform domain, between a range of a spectral envelope of frame m and a corresponding range of a spectral envelope of an adjacent frame m?1. Each such range comprises a set of quantized spectral envelope values related to the energy in spectral bands of a segment of the audio signal. The method further comprises selecting a decoding mode, out of a plurality of decoding modes, based on the stability value D(m); and applying the selected decoding mode.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: May 21, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Erik Norvell, Stefan Bruhn
  • Patent number: 10298354
    Abstract: The application relates to the selection of cells to form a cell coordination group for which interference management techniques such as COMP are to be applied. The cells to be selected to improve the performance of a UE in terms of throughput or delay are not necessarily the ones which are geographically the closest because in city environments shadowing effects of buildings exist. Thus, choosing the closest cells for coordinated interference management will not be a good solution in many cases. Hence, there is a need to develop another method and mechanism for more accurately generating a cell coordination group for interference management activities. This problem is solved by the application in that either the downlink interference toward the UE from the neighboring cells is estimated or the neighbor cells listen for the UE and then predict the downlink interference. Furthermore, the algorithm starts with an initial list of cells comprising the most likely handover candidates.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: May 21, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Fredric Kronestedt, Lars Klockar, Magnus Lundevall
  • Patent number: 10298358
    Abstract: A radio access network node (e.g., base station subsystem) and method are described herein for indicating to a mobile station (e.g., CIoT device) which system information (SI) message(s) (if any) has changed relative to the mobile station's last reading. In addition, a mobile station (e.g., CIoT device) and method are described herein for receiving an indication that indicates which system information (SI) message(s) (if any) has changed relative to the mobile station's last reading.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: May 21, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Claes-Göran Persson, Nicklas Johansson, John Walter Diachina
  • Patent number: 10297142
    Abstract: The present disclosure relates to methods and devices in clustered alarm scenarios. More particularly the disclosure pertains to methods and arrangements for detecting several messages of a preconfigured message type, arriving sequentially in time. This disclosure proposes a method, performed in a radio network node, of detecting several messages of a preconfigured message type. The method comprises detecting SI a first message of the preconfigured message type, the first message being associated with an event. The method further comprises reconfiguring S3, in the radio network node, in response to the detection, at least one radio setting related to detecting further messages of the preconfigured message type and monitoring S4 a radio spectrum for further messages of the preconfigured message type using the reconfigured radio settings.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: May 21, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Bengt Lindoff, Shehzad Ali Ashraf, Robert Baldemair, Fredrik Lindqvist
  • Patent number: 10298375
    Abstract: Selecting a downlink control information (DCI) format used for transmitting a DCI message in a subframe. The subframe may be used to carry, for instance, voice communication data to support a voice over LTE (VoLTE) application or to otherwise provide downlink (DL) voice coverage. In one aspect, a certain downlink DCI format is selected (e.g., DCI format 1A) when there is a high path loss and/or interfernce scenario, and/or the packet has data with a high priority (e.g., low QCI value). This technique may lead to less dropped calls due to RTP timeout, and may improve perception and mean opinion score (MOS) of VoLTE quality.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: May 21, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventor: Carola Faronius
  • Patent number: 10298364
    Abstract: For transmitting data over a radio interface using subframes with a plurality of resource elements organized in a time-frequency grid, at least two groups of resource elements are determined from the resource elements of one of the subframes. Each group covers multiple consecutive resource elements in the time domain and is distinct from the at least one other group in the frequency domain. Data symbols of a sequence are consecutively mapped to the resource elements of one of the groups. If a data symbol is mapped to each resource element of the group, the next data symbols of the sequence are consecutively mapped to the resource elements of a further one of the groups.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: May 21, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Karl Werner, Johan Furuskog
  • Patent number: 10298689
    Abstract: A method in a first network node for assisting an electronic device to benefit from a service provided by a cloud is provided. The first network node is comprised in the cloud. The first network node obtains information from the electronic device. The information comprises computation and storage capability of the electronic device. The first network node determines a push content based on the information. The first network node retrieves binary executable and content from one or more second network nodes comprised in the cloud. The binary executable and content are based on the push content. The first network node then pushes the binary executable and content to the electronic device. This is to enable the electronic device to benefit from the service of the cloud without accessing the cloud.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: May 21, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Hongxin Liang, Elena Fersman, Neil Urquhart
  • Patent number: 10298309
    Abstract: A method performed by a wireless device (121) for determining the quality of uplink beamforming directions in a wireless communications network (100) is provided. The wireless device (121) receives configuration information indicating uplink channel state information, CSI, processes for uplink beamforming directions. Then, the wireless device (121) transmits reference signals for one or more uplink beamforming directions on uplink transmission resources of corresponding one or more uplink CSI processes. The wireless device (121) also receives one or more uplink CSI process reports for the one or more uplink CSI processes. Then, the wireless device (121) determines the quality of at least one uplink beamforming direction using the one or more uplink CSI process reports. A wireless device (121) for determining the quality of uplink beamforming directions in a wireless communications network (100) is also provided.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: May 21, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Martin Hessler, Erik Eriksson, Jonas Fröberg Olsson, Sven Petersson
  • Patent number: 10298517
    Abstract: Aspects of the invention relate to a method of adapting an association of physical resources in a network with a summarized resource corresponding to one or more class of service. The method comprises monitoring at least one parameter of the summarized resources. The method further comprises comparing the at least one parameter between a plurality of summarized resources, and comparing the class of service of the summarized resources. Based on the comparing of the at least one parameter and based on the comparing of the class of service of the summarized resources, the method comprises determining one or more summarized resources to be a source for providing physical resources and determining one or more summarized resources to be a destination for receiving physical resources. Based on the determining, the method comprises modifying an allocation of physical resources to transfer an association of physical resources from the source summarized resource to the destination summarized resource.
    Type: Grant
    Filed: February 17, 2014
    Date of Patent: May 21, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Paola Iovanna, Cristiano Zema
  • Patent number: 10298716
    Abstract: A server (500), a client device (502) and methods therein, for handling cached content resources. When receiving (5:3) a request from the client device (502) in a downloading session, the server (500) identifies (5:4) a set of caches (504, 506) that can be accessed by the client device (502). The server (500) then sends (5:6) a cache map to the client device (502) indicating that a first content resource is stored in a first cache (504) of the identified set of caches and a second content resource is stored in a second cache (506) of the identified set of caches. Thereby, the server (500) is able to adapt the cache map depending on which caches can be accessed by the client device (502), to ensure that the client device (502) can retrieve the content resources in an efficient manner.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: May 21, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Stefan Håkansson, Adam Bergkvist, Christer Holmberg, Daniel Lindström
  • Patent number: 10298712
    Abstract: A client node, a proxy node, and methods therein, as well as a protocol and a computer program for enabling interception of request messages in connection-less protocols. A primary request addressed to a server node is intercepted by a proxy node creating a secondary request based on said request and forwards this secondary request towards the server node. The proxy node receives a secondary response, being a response to the secondary request, creates a primary response based on the secondary response and forwards this primary response to the node from which the primary request was received. A response can thus be sent along the same path as a corresponding request was sent.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: May 21, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Anders E Eriksson, Marcus Ihlar, Adeel Mohammad Malik, Börje Ohlman, Karl-Åke Persson, Linus Sunde
  • Patent number: 10299072
    Abstract: Providing a network service to at least one mobile terminal inside a service area, the at least one mobile terminal being arranged to communicate with a communication network, the service area being a part of a geographical area that is covered by the communication network, comprising defining, by a first grid process, a first grid with first grid lines, the first grid covering at least a part of the service area with one or more tiles framed by the first grid lines; defining, by a second grid process, a second grid with second grid lines, the second grid covering at least a part of the service area with one or more tiles framed by the second grid lines; monitoring a crossing, by the at least one mobile terminal, of a grid line; and determining whether said grid line is a first grid line or a second grid line for notifying correspondingly the first grid process and/or the second grid process.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: May 21, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Frank Sell, Tim Lauterbach
  • Patent number: 10298499
    Abstract: According to one aspect of the present disclosure, a method of operating a network node of a communication network is provided, the network node being connected to a downstream network node, and to a non-downstream loop free alternate (LFA) network node comprising a load balancing identifier indicating whether it is allowed to load balance the data packet via a non-downstream LFA network node or not; changing, if the load balancing identifier indicates that it is allowed to load balance the data packet via a non-downstream LFA network node, and if the network node decides to load balance the data packet via the non-downstream LFA network node, the load balancing identifier of the data packet such that it indicates that a further load balancing of the data packet via a further non-downstream LFA network node is not allowed; and forwarding the thus modified data packet to the non-downstream LFA network node.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: May 21, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Balázs Peter Gerö, Bhaskara Chinni, András Császár, Sriganesh Kini, Andrew Wilkinson