Patents by Inventor Mattias Andersson

Mattias Andersson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Adaptive transmission time interval length
    Patent number: 10743306
    Abstract: A method in a communication system comprising a radio device and radio access network node, the method comprising and/or initiating a step of setting, in the radio device, a length of a transmission time interval (TTI) in a physical uplink control channel; a step of transmitting control information, by the radio device, over the physical uplink control channel with the set transmission time interval length; and a step of changing the transmission time interval length to be set by said radio device based on a channel or payload characteristic between said radio device and said radio access network node.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: August 11, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Gustav Wikström, Mattias Andersson, Laetitia Falconetti, Daniel Larsson
  • CODE BLOCK SEGMENTATION BY OFDM SYMBOL
    Publication number: 20200235873
    Abstract: According to some embodiments, a method in a wireless transmitter of aligning code blocks with modulation symbols comprises: receiving a block of information bits for wireless transmission in a plurality of modulation symbols; partitioning the plurality of modulation symbols into groups of one or more modulation symbols, wherein the modulation symbols in a group are contiguous in time; and assigning each of the information bits to one of the groups. For each of the groups the method further comprises: segmenting the assigned information bits in the group into one or more code blocks; encoding each code block into coded bits; and assigning the coded bits of the one or more code blocks to the group of modulation symbols the information bits are assigned to.
    Type: Application
    Filed: February 6, 2018
    Publication date: July 23, 2020
    Inventors: Mattias Andersson, Robert BALDEMAIR, Yufei BLANKENSHIP, Sara SANDBERG
  • SPLIT DRUM FOR LIFT STRAP IN CEILING STRAP
    Publication number: 20200230006
    Abstract: A patient lift system includes a lift housing, a base lift strap having a first end coupled to a lift housing and a second end coupled to a sling bar. The base lift strap is infection controlled. In one embodiment, a protective sleeve covers the base lift strap, wherein the protective sleeve has a first end and a second end. In another embodiment, the base lift strap is chemically treated to provide infection control.
    Type: Application
    Filed: April 2, 2020
    Publication date: July 23, 2020
    Applicant: Liko Research & Development AB
    Inventors: Roger Karlsson, Mattias Andersson, Lars Eklof, Laetitia Gazagnes, Joshua William Shenk
  • LDPC Code Block Segmentation
    Publication number: 20200235752
    Abstract: According to some embodiments, a method in a wireless transmitter comprises: receiving a plurality of bits for a wireless transmission; determining a maximum code block size for the transmission based on code rate, maximum code word size Nmax, and design parameters of the channel code; segmenting the plurality of bits into one or more code block segments such that no one of the one or more code block segments is larger than the determined maximum code block size; and transmitting the one or more code block segments to a wireless receiver. In particular embodiments, the design parameters of the channel code limit the maximum code block size to Kmax for any code rate. The determined maximum code block size may be limited by code rate and Nmax such that the maximum code block size does not exceed code rate times Nmax.
    Type: Application
    Filed: February 6, 2018
    Publication date: July 23, 2020
    Inventors: Sara Sandberg, Mattias ANDERSSON, Yufei BLANKENSHIP, Amirpasha SHIRAZINIA
  • Shift Values for Quasi-Cyclic LDPC Codes
    Publication number: 20200228142
    Abstract: According to some embodiments, a method use in a wireless transmitter of a wireless communication network comprises encoding information bits using a parity check matrix (PCM) and transmitting the encoded information bits to a wireless receiver. The parity check matrix (PCM) is optimized according to two or more approximate cycle extrinsic message degree (ACE) constraints. In some embodiments, a that portion of the PCM is optimized according to a first ACE constraint and a second portion of PCM is optimized according to a second ACE constraint.
    Type: Application
    Filed: March 30, 2020
    Publication date: July 16, 2020
    Inventors: Sara Sandberg, Mattias Andersson, Yufei Blankenship
  • Clear soft buffer partially using NDI
    Patent number: 10700821
    Abstract: Systems and methods are disclosed herein that allow a radio access node to command a wireless device to clear parts of a soft buffer for a Hybrid Automatic Repeat Request (HARQ) process. In some embodiments, a method for a wireless device in a wireless communications system comprises receiving control information comprising information pertaining to whether the wireless device should partially clear a soft buffer for a HARQ process, deciding whether to partially clear the soft buffer for the HARQ process based on the information comprised in the control information, and partially clearing the soft buffer for the HARQ process upon deciding to partially clear the soft buffer for the HARQ process. In this manner, corrupted soft information can be cleared from the soft buffer while retaining uncorrupted soft information in the soft buffer.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: June 30, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mattias Andersson, Stefan Parkvall, Sara Sandberg
  • LIFT SYSTEM WITH LOWERING MECHANISM
    Publication number: 20200188205
    Abstract: A movement system for use with an overhead patient lift system includes a motor. A drum is operatively coupled to the motor. The drum is configured to be selectively driven by the motor to rotate in one of a clockwise direction and a counter-clockwise direction. A lifting strap is coupled to the drum. The lifting strap is extendable and retractable with respect to a carriage of the overhead patient lifting system as the drum rotates. A manual release operatively coupled to the drum is actuatable to selectively disengage the drum from the motor to allow the lifting strap to be manually extended. Also disclosed is an overhead patient lift system including the movement system and a method for manually extending a lifting strap of an overhead patient lift system.
    Type: Application
    Filed: February 21, 2020
    Publication date: June 18, 2020
    Applicant: Liko Research & Development AB
    Inventors: Mattias Andersson, Roger Karlsson, Andreas Gelfgren
  • Transport Block Size Determination for Equal Size Code Blocks
    Publication number: 20200186286
    Abstract: According to some embodiments, a method for use in a wireless receiver comprises determining a transport block size, TBS, for a transport block to be communicated between the wireless transmitter and a wireless receiver via a physical channel transmission. The TBS determination uses a formula accounting for cyclic redundancy check, CRC, bits. The method further comprises transmitting the transport block according to the determined TBS. In particular embodiments the formula is based on an approximate transport block size, a number of code blocks, at least one of a number of CRC bits attached to the transport block, and a number of CRC bits added to each of the C code blocks.
    Type: Application
    Filed: February 14, 2020
    Publication date: June 11, 2020
    Inventors: Mattias Andersson, Yufei BLANKENSHIP, Sara SANDBERG
  • Cable and composition
    Patent number: 10679768
    Abstract: A cable having one or more conductors surrounded by at least an inner semiconductive layer, an insulation layer and an outer semiconductive layer, in that order, wherein the insulation layer is not crosslinked and has at least 90 wt % of a polymer composition, said polymer composition having: (I) 85.0 to 99.5 wt % of an LDPE; and (II) 0.5 to 15.0 wt % of an HDPE having a density of at least 940 kg/m3 or 1.5 to 15.0 wt % of an ultra-high molecular weight polyethylene having a Mw of at least 1,000,000.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: June 9, 2020
    Assignee: BOREALIS AG
    Inventors: Per-Ola Hagstrand, Villgot Englund, Thomas Gkourmpis, Mattias Andersson, Jonna Hynynen, Christian Müller
  • Cable with improved electrical properties
    Patent number: 10679769
    Abstract: A cable comprising a conductor surrounded by at least an inner semiconductive layer, an insulation layer and an outer semiconductive layer, in that order, wherein the insulation layer is not crosslinked or is cross-linked and comprises at least 90 wt % of a polymer composition, said polymer composition comprising: (I) 95.5 to 99.9 wt % of an LDPE; and (II) 0.1 to 4.5 wt % of an HDPE having a density of at least 940 kg/m3.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: June 9, 2020
    Assignee: BOREALIS AG
    Inventors: Per-Ola Hagstrand, Thomas Gkourmpis, Antonios Gitsas, Villgot Englund, Ulf Nilsson, Mattias Andersson, Jonna Hynynen, Christian Müller
  • Collision handling between legacy TTI and short TTI
    Patent number: 10674531
    Abstract: Systems and methods for collision handling between transmissions using a first Transmission Time Interval (TTI) and transmissions using a second TTI, such as a legacy TTI and a short TTI (sTTI), are provided. In some embodiments, the proposed solution helps the UE handle collisions between transmissions using legacy TTI in UL and overlapping transmissions using short TTI in UL. In some embodiments, this is accomplished by a wireless device adapted for uplink transmissions using a first TTI or a second TTI where the second TTI is shorter than the first TTI. The method includes altering at least one transmission of a first transmission using the first TTI and a second transmission using the second TTI based on a determination that a collision is to occur between the first transmission and the second transmission.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: June 2, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Laetitia Falconetti, Daniel Larsson, Mattias Andersson, Gustav Wikström
  • Method and apparatus for separate scheduling of uplink data and reference signal transmissions in a communication network
    Patent number: 10659205
    Abstract: According to one aspect of the teachings herein, a base station (20) schedules the transmission of uplink reference signals by a wireless device (16) separately from scheduling uplink data transmissions by the device (16). The separate scheduling may be done at specific times, under specific conditions, and with respect to specific devices (16) or groups of devices (16). Separate scheduling allows, for example, the base station (20) to use smaller scheduling intervals that are possible when uplink reference signals are integrally included in any scheduled uplink data transmission. As a further advantage, the density or number of uplink reference signal transmissions by a given device (16) can be adapted, e.g., based on channel conditions, data transmission formats, etc.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: May 19, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mattias Andersson, Niklas Andgart, David Astely, Helka-Liina Määttanen, Henrik Sahlin
  • Split drum for lift strap in ceiling lift
    Patent number: 10646392
    Abstract: A patient lift system includes a lift housing, a base lift strap having a first end coupled to a lift housing and a second end coupled to a sling bar. The base lift strap is infection controlled. In one embodiment, a protective sleeve covers the base lift strap, wherein the protective sleeve has a first end and a second end. In another embodiment, the base lift strap is chemically treated to provide infection control.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: May 12, 2020
    Assignee: LIKO RESEARCH & DEVELOPMENT AB
    Inventors: Roger Karlsson, Mattias Andersson, Lars Eklof, Laetitia Gazagnes, Joshua William Shenk
  • Shift values for quasi-cyclic LDPC codes
    Patent number: 10644724
    Abstract: According to some embodiments, a method for use in a wireless transmitter of a wireless communication network comprises encoding information bits using a parity check matrix (PCM) and transmitting the encoded information bits to a wireless receiver. The parity click matrix (PCM) is optimized according to two or more approximate cycle extrinsic message degree (ACE) constraints. In some embodiments, a first portion of the PCM is optimized according to a first ACE constraint and a second portion of the PCM is optimized according to a second ACE constraint.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: May 5, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sara Sandberg, Mattias Andersson, Yufei Blankenship
  • CODE BLOCK SEGMENTATION FOR NEW RADIO
    Publication number: 20200112393
    Abstract: According to some embodiments, a method for use in a wireless transmitter of encoding a transport block comprises, upon determining a code rate for transmitting a transport block is less than or equal to R_threshold (R_threshold is between ? and ?), selecting new radio (NR) low-density parity-check (LDPC) base graph 2 for encoding the transport block. The method further comprises encoding the transport block using the selected base graph and transmitting the encoded transport block to a wireless receiver.
    Type: Application
    Filed: December 5, 2019
    Publication date: April 9, 2020
    Inventors: Sara SANDBERG, Mattias ANDERSSON, Yufei BLANKENSHIP, Amirpasha SHIRAZINIA
  • Transport block size determination for equal size code blocks
    Patent number: 10615915
    Abstract: According to some embodiments, a method for use in a wireless receiver comprises determining a transport block size, TBS, for a transport block to be communicated between the wireless transmitter and a wireless receiver via a physical channel transmission. The TBS determination uses a formula accounting for cyclic redundancy check, CRC, bits. The method further comprises transmitting the transport block according to the determined TBS. In particular embodiments the formula is based on an approximate transport block size, a number of code blocks, at least one of a number of CRC bits attached to the transport block, and a number of CRC bits added to each of the C code blocks.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: April 7, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mattias Andersson, Yufei Blankenship, Sara Sandberg
  • Lift system with lowering mechanism
    Patent number: 10610431
    Abstract: A movement system for use with an overhead patient lift system includes a motor. A drum is operatively coupled to the motor. The drum is configured to be selectively driven by the motor to rotate in one of a clockwise direction and a counter-clockwise direction. A lifting strap is coupled to the drum. The lifting strap is extendable and retractable with respect to a carriage of the overhead patient lifting system as the drum rotates. A manual release operatively coupled to the drum is actuatable to selectively disengage the drum from the motor to allow the lifting strap to be manually extended. Also disclosed is an overhead patient lift system including the movement system and a method for manually extending a lifting strap of an overhead patient lift system.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: April 7, 2020
    Assignee: LIKO RESEARCH & DEVELOPMENT AB
    Inventors: Mattias Andersson, Roger Karlsson, Andreas Gelfgren
  • HARQ HANDLING FOR NODES WITH VARIABLE PROCESSING TIMES
    Publication number: 20200106560
    Abstract: A method for use in a transmitter includes sending a transmission comprising a transport block (TB) comprising a plurality of code blocks (CBs) arranged in one or more code block groups (CBGs). Each code block group includes one or more code blocks and each code block includes a plurality of coded bits. The transmission is sent to a receiver configured to use multi-bit hybrid automatic repeat request (HARQ) feedback per transport block. The method further includes receiving HARQ ACK or NACK feedback from the receiver one or more of the one or more code block groups of the transport block. The method further includes determining a number of code blocks or code block groups to send to the receiver in a retransmission based on at least the received HARQ ACK or NACK feedback.
    Type: Application
    Filed: April 2, 2018
    Publication date: April 2, 2020
    Inventors: Jung-Fu Cheng, Mattias Andersson, Yufei Blankenship, Stefan Parkvall, Sara Sandberg
  • Short TTI within special subframes of TTD communication systems
    Patent number: 10608806
    Abstract: A wireless device, network node and method for communication between wireless devices and network nodes are provided. According to one aspect, a wireless device configured to communicate with a network node in a wireless communication system is provided. The wireless device includes processing circuitry configured to form at least one of an uplink, UL, signal and a downlink, DL, signal during at least one short transmission time interval, sTTI, in a special sub-frame of a radio frame to create an sTTI-containing special subframe. The wireless device further includes a transceiver configured to communicate with the network node by one of sending the uplink signal and receiving the downlink signal during the at least one sTTI.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: March 31, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Jingya Li, Mattias Andersson, Niklas Andgart, Henrik Sahlin
  • Person lifting devices with accessory detection features and methods for operating the same
    Patent number: 10596052
    Abstract: In the embodiments described herein, the person lifting device automatically determines if an accessory, such as a sling, is properly connected to a sling bar of the person lifting device and, if the accessory is not properly connected, the person lifting device provides a user with a visual and/or audible warning and, in some embodiments, may lock-out the actuation controls of the person lifting device to prevent the person lifting device from being used.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: March 24, 2020
    Assignee: LIKO RESEARCH & DEVELOPMENT AB
    Inventors: Mattias Andersson, Andreas Bolin, Marica Demby, John V. Harmeyer, Roger Karlsson, Douglas A. Seim, Varad Narayan Srivastava