Patents by Inventor Niklas Andgart

Niklas Andgart 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).

  • Patent number: 10694575
    Abstract: A method may be provided to operate a user equipment device, UE. The method may comprise, when operating with a short Transmission Time Interval (sTTI), and when using connected mode discontinuous reception, DRX, monitoring transmissions from a radio access network node during a first part of a subframe for a UE-specific message for the UE containing first control information. If no UE-specific message for the UE containing first control information is received, the UE may be inactive during a second part of the subframe following after the first part of the subframe. If the UE receives the UE-specific message containing first control information, it may monitor the second part of the subframe for a message containing second control information, for use in receiving or transmitting data from or to the radio access network node.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: June 23, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Gustav Wikström, Niklas Andgart, Henrik Enbuske, Henrik Sahlin
  • Patent number: 10681584
    Abstract: According to some embodiments, a method of reporting channel quality information for use in a wireless device of a wireless communication network comprises: measuring a reference signal to determine a signal to noise ratio; determining a first channel quality index (CQI) using the signal to noise ratio and a first transport block error probability (e.g., BLER); determining a second CQI using the signal to noise ratio and a second transport block error probability; and reporting the first CQI and the second CQI to a network node.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: June 9, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Kittipong Kittichokechai, Niklas Andgart, Jonas Fröberg Olsson, Alexey Shapin, Efthymios Stathakis, Gustav Wikström
  • 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
  • Patent number: 10630436
    Abstract: Methods, wireless devices and network nodes for communicating in a wireless communication network are disclosed. According to one aspect, a wireless device includes processing circuitry configured to obtain information regarding the inclusion of at least one short transmission time interval, sTTI, in one of a time division duplex, TDD, uplink, UL, subframe and TDD downlink, DL, subframe of a radio frame. The wireless device further includes a transceiver configured to communicate with the network node using the at least one sTTI during the TDD subframe.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: April 21, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Jingya Li, Niklas Andgart, Henrik Sahlin, Gustav Wikström
  • Publication number: 20200112981
    Abstract: Methods and apparatus for generating a scheduling grant for a wireless device of a communication system are provided. The communication system supports variable TTI lengths to be transmitted in one TTI. It is presented how to determine a TTI length for a scheduled TTI, where the TTI length is determined in number of symbols. It is further presented how to determine at least one reference signal parameter for the scheduled TTI, where the at least one reference symbol parameter is selected from a reference symbol position and a reference symbol cyclic shift. Finally, encoding the TTI length and the at least one reference symbol parameter into a TTI index is presented.
    Type: Application
    Filed: February 3, 2017
    Publication date: April 9, 2020
    Inventors: Henrik Sahlin, Niklas Andgart, Gustav Wikström
  • 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
  • Publication number: 20200099474
    Abstract: In order to address problems arising due to conflicting transmissions of different services, each transport block transmitted to a receiver includes at least two code blocks and the decision by the receiver to flush and replace parts of the soft buffer and/or to add the soft bits to only some of the code blocks of a transport block is based on a combination of the multi-bit feedback transmitted by the receiver and a multi-bit indication in the DCI (Downlink Control Information) transmitted by the transmitter.
    Type: Application
    Filed: December 28, 2017
    Publication date: March 26, 2020
    Inventors: Gustav WIKSTRÖM, Niklas ANDGART, Jonas FRÖBERG OLSSON, Daniel LARSSON, Caner KILINC
  • Publication number: 20200067668
    Abstract: A method in a network node for supporting a predetermined set of aggregation levels for configuration of a downlink control channel for one of a slot Transmission Time Interval (TTI) and a subslot TTI. The method includes determining an aggregation level to be monitored by a wireless device (WD) in a communication network; and determining a number of downlink control channel candidates for the WD to monitor within each of the one of the slot TTI and the subslot TTI, the number of downlink control channel candidates based upon the aggregation level. A wireless device and corresponding method for supporting a predetermined set of aggregation levels and for implementing at least one aggregation level and at least one downlink control channel candidate for configuration of a downlink control channel for one of a slot TTI and a subslot TTI are also provided.
    Type: Application
    Filed: May 4, 2018
    Publication date: February 27, 2020
    Inventors: John Camilo SOLANO ARENAS, Niklas ANDGART, Laetitia FALCONETTI
  • Publication number: 20200067647
    Abstract: A method for retransmission of uplink transmissions, performed by a wireless device with configured uplink grants. The method comprises transmitting a first transmission to a network node with a redundancy version (RV). The wireless device then determines to retransmit the first transmission, and retransmits the first transmission with a retransmission RV based on the type of retransmission. For a non-adaptive retransmission, the retransmission RV value is the same as the RV of the first retransmission. For an adaptive retransmission, the retransmission RV is the RV value received in a retransmission grant.
    Type: Application
    Filed: November 3, 2019
    Publication date: February 27, 2020
    Inventors: Gustav WIKSTRÖM, Erik ERIKSSON, Magnus STATTIN, Andreas BERGSTRÖM, Niklas ANDGART, Torsten DUDDA, Osman Nuri Can YILMAZ
  • Patent number: 10575302
    Abstract: There is disclosed a method of operating a terminal (10) in a wireless communication network, the method comprising receiving and/or transmitting according to a transmission time interval, TTI, configuration, the TTI configuration indicating at least one short transmitting time interval having between one or two and seven symbols of duration in a subframe. There are also disclosed related methods and devices.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: February 25, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Henrik Sahlin, Niklas Andgart, Laetitia Falconetti, Daniel Larsson, Jingya Li, Gustav Wikström
  • Publication number: 20200059902
    Abstract: A network node for configuring resources for a short Physical Downlink Control Channel, sPDCCH, is provided. The network node includes processing circuitry configured to determine time resources for the sPDCCH based on at least one characteristic associated with transmission, and configure a wireless device using the time resources for the sPDCCH.
    Type: Application
    Filed: February 2, 2018
    Publication date: February 20, 2020
    Inventors: Laetitia FALCONETTI, Niklas ANDGART, John Camilo SOLANO ARENAS
  • Publication number: 20200052812
    Abstract: A method performed by a network node for handling a damaged transmission of data due to data puncturing is provided. The network node receives (201), from a User Equipment, (UE) a Negative Acknowledgment (NACK) feedback of a previous transmission of data transmitted to the UE. The network node checks (202) whether or not the data is punctured in the previous transmission corresponding to the NACK feedback. When the data is punctured in the previous transmission, the network node selects (203) a Redundancy Version (RV), for a retransmission of the data, according to characteristics of the punctured data and puncturing data. The network node then sends (204) a Puncturing Indication (PI), the selected RV and the retransmission of the data to the UE.
    Type: Application
    Filed: March 14, 2018
    Publication date: February 13, 2020
    Inventors: Kittipong Kittichokechai, Niklas Andgart, Alexey Shapin, Mårten Sundberg, Gustav Wikström
  • Publication number: 20200052810
    Abstract: The present disclosure provides methods and apparatus for detecting when a data transmission has been preempted or punctured by detecting inconsistency in the modulation or other signal characteristic of a received signal. If an inconsistency is detected, measures can be taken to mitigate potential problems caused by the inconsistent data. In one example, the receiving device (30) may identify soft bits in a soft buffer that may have been corrupted and flush the corrupted parts from the soft buffer.
    Type: Application
    Filed: March 23, 2018
    Publication date: February 13, 2020
    Inventors: Alexey Shapin, Niklas Andgart, Kittipong Kittichokechai, Mårten Sundberg, Gustav Wikström
  • Patent number: 10506557
    Abstract: The present disclosure relates to methods of configuring transmission properties in a radio network node. More particularly the disclosure pertains to configuring transmission properties based on a successful decoding of one or more transport blocks. The disclosure also relates to methods of configuring transmission properties in the uplink and in the downlink and to corresponding radio network node and computer program. According to some aspects, the disclosure proposes a method, performed in a radio network node that is communicating with a wireless device, of configuring transmission properties.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: December 10, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Joakim Axmon, Peter Alriksson, Niklas Andgart
  • Patent number: 10498493
    Abstract: A method for retransmission of uplink transmissions, performed by a wireless device with configured uplink grants. The method comprises transmitting a first transmission to a network node with a redundancy version (RV). The wireless device then determines to retransmit the first transmission, and retransmits the first transmission with a retransmission RV based on the type of retransmission. For a non-adaptive retransmission, the retransmission RV value is the same as the RV of the first retransmission. For an adaptive retransmission, the retransmission RV is the RV value received in a retransmission grant.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: December 3, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Gustav Wikström, Erik Eriksson, Magnus Stattin, Andreas Bergström, Niklas Andgart, Torsten Dudda, Osman Nuri Can Yilmaz
  • Patent number: 10498405
    Abstract: Systems and methods for codebook restriction for closed-loop codebook-based precoding in a Multiple-Input-Multiple-Output (MIMO) wireless communications system based on antenna correlation are disclosed. In some embodiments, a method of operation of a wireless device to provide feedback for a closed-loop codebook-based precoding system is provided. The method comprises determining a codebook restriction based on an antenna correlation for a MIMO channel between a network node and the wireless device. The antenna correlation is transmit antenna correlation, receive antenna correlation, or both transmit and receive antenna correlation. The codebook restriction is a restriction that reduces a full codebook of the wireless device to a reduced codebook. The method of operation of the wireless device further comprises generating a feedback report using the reduced codebook and transmitting the feedback report to the network node.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: December 3, 2019
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Sairamesh Nammi, Niklas Andgart
  • Publication number: 20190363847
    Abstract: There is provided mechanisms for transmitting payload in a subframe. A method is performed by a first network device. The method comprises obtaining a transport block size (TBS) value by accessing an array storing a plurality of TBS values. The TBS value is proportional to number of user data symbols in a subframe of a given subframe length. One and the same array is accessed regardless of the given subframe length. The method comprises transmitting a physical channel carrying payload in the subframe to a second network device. The amount of data in the payload is determined by the TBS value.
    Type: Application
    Filed: August 7, 2019
    Publication date: November 28, 2019
    Inventors: Henrik SAHLIN, Jingya LI, Niklas ANDGART
  • Publication number: 20190349126
    Abstract: A receiver blindly determines which parts of the soft buffer to flush by comparing the reception of a first transmission to the reception of a second transmission (i.e., a re-transmission of the first transmission). Any large differences between the first and second transmissions are identified as puncturing events. After identifying the location of the puncturing events, the receiver then evaluates different hypotheses about which one of the transmissions was punctured in the different events. For each of the hypotheses the receiver attempts to decode the received data and the receiver stops processing once decoding is successful or after the receiver has processed all of the hypotheses.
    Type: Application
    Filed: November 20, 2017
    Publication date: November 14, 2019
    Inventors: Niklas ANDGART, Majid GERAMI, Mårten SUNDBERG, Jonas FRÖBERG OLSSON, Caner KILINC
  • Publication number: 20190349809
    Abstract: Systems and methods are disclosed that relate to selecting Time Division Duplexing (TDD) subframes (SFs) where both downlink (DL) and uplink (UL) short Transmit Time Intervals (sTTIs) can be introduced without substantially affecting legacy TDD operations. In this regard, in some embodiments, a method of operation of a network node of a cellular communications network comprises partitioning a plurality of SFs into at least two sets of SFs. The at least two sets of SFs comprising a first set of SFs for legacy TDD transmissions and a second set of SFs for sTTI TDD transmissions. The method further comprises performing one or more telecommunications functions according to the at least two sets of SFs. In this manner, TDD sTTI transmissions can be performed without substantially affecting legacy TDD operations.
    Type: Application
    Filed: May 12, 2017
    Publication date: November 14, 2019
    Inventors: Jingya Li, Henrik Sahlin, Mattias Andersson, Gustav Wikström, Niklas Andgart
  • Patent number: 10469198
    Abstract: A method is proposed for adjusting transmission properties associated with data transfer in time slots of predetermined length, the method comprises transmitting a first transport block S101 using a set of transport transmission properties to a receiving node. A probing block S102 is transmitted to the receiving node using a set of probing transmission properties comprising a reduced robustness in relation to the set of transport transmission properties. The set of transport transmission properties is reconfigured for further transport blocks based on information communicated by the receiving node indicative of success of decoding of the probing block by the receiving node.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: November 5, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Joakim Axmon, Peter Alriksson, Niklas Andgart