Patents by Inventor Simon Jaermyr

Simon Jaermyr 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).

  • PUCCH RELIABILITY ENHANCEMENTS WITH MULTIPLE TRPs
    Publication number: 20230076139
    Abstract: Methods for enhancing Physical Uplink Shared Channel (PUSCH) reliability. In embodiments disclosed herein, a base station provides, and a wireless device receives, an instruction for transmitting a plurality of PUSCH repetitions based on two Sounding Reference Signal (SRS) resource sets. Accordingly, the wireless device transmits, and the base station receives, the plurality of PUSCH repetitions based on the instruction. In a non-limiting example, the wireless device can be configured to transmit the multiple PUSCH repetitions in accordance with codebook based PUSCH transmission or non-codebook based PUSCH transmission. As a result, it is possible to efficiently use multiple SRS resource sets for transmission and/or reception of PUSCH repetitions, especially in Frequency Range 2 (FR2) in which an uplink transmit beam may be formed with a narrower beam-width.
    Type: Application
    Filed: February 12, 2021
    Publication date: March 9, 2023
    Inventors: Siva Muruganathan, Mattias Frenne, Shiwei Gao, Simon Järmyr, Andreas Nilsson, Jianwei Zhang
  • NON-CODEBOOK BASED MULTI-TRP PUSCH RELIABILITY WITH MULTIPLE ASSOCIATED NZP CSI-RSs
    Publication number: 20230063015
    Abstract: Systems and methods for non-codebook based multiple transmission and reception point (TRP) Physical Uplink Shared Channel (PUSCH) transmission and reception are disclosed herein. In one embodiment, a method performed by a wireless communication device comprises receiving a configuration of first and second Sounding Reference Signal (SRS) resource sets to be used for non-codebook based PUSCH transmission. The method further comprises receiving a configuration of first and second Non-Zero Power (NZP) Channel State Information Reference Signals (CSI-RSs) associated with the first and SRS resource sets, respectively. The method further comprises receiving a request for transmitting data in PUSCH in a plurality of occasions, wherein the request comprises first and second SRS resource indicators (SRIs) associated with the first and second SRS resource sets, respectively.
    Type: Application
    Filed: February 11, 2021
    Publication date: March 2, 2023
    Inventors: Siva Muruganathan, Shiwei Gao, Mattias Frenne, Simon Järmyr
  • Network node, user equipment and methods therein to enable the UE to determine a precoder codebook
    Patent number: 11595088
    Abstract: A method performed by a base station of enabling a User Equipment (UE) to determine a precoder codebook in a wireless communication system is provided. The base station transmits, to the UE, information regarding precoder parameters enabling the UE to determine the precoder codebook. The precoder parameters are associated with a plurality of antenna ports of the base station. The precoder parameters relate to a first dimension and a second dimension of the precoder codebook. The plurality of antenna ports comprises a number of antenna ports that is a function of a number of antenna ports in the first dimension, and a number of antenna ports in the second dimension.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: February 28, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: George Jöngren, Sebastian Faxér, Simon Järmyr, Niklas Wernersson
  • METHOD FOR DIFFERENTIATING MULTIPLE PHYSICAL DOWNLINK SHARED CHANNEL (PDSCH) TRANSMISSION SCHEMES
    Publication number: 20230048243
    Abstract: A method for differentiating multiple Physical Downlink Shared Channel (PDSCH) transmission schemes. In a non-limiting example, the PDSCH transmission schemes include a spatial multiplexing transmission scheme, a frequency multiplexing transmission scheme, a slot-based time multiplexing transmission scheme, and a mini-slot-based time multiplexing transmission scheme. In examples discussed herein, a User Equipment (UE) can be configured to differentiate the PDSCH transmission schemes based on information indicated in Downlink Control Information (DCI) for scheduling a PDSCH transmission, information signaled to the UE via a higher layer configuration, and/or capability signaling indicated from the UE to a network. By differentiating the PDSCH transmission schemes, the UE can efficiently receive a data transmission(s) from multiple Transmission/Reception Points (TRPs).
    Type: Application
    Filed: July 18, 2022
    Publication date: February 16, 2023
    Inventors: Siva Muruganathan, Sebastian Faxér, Mattias Frenne, Shiwei Gao, Simon Järmyr
  • Codebook subset restriction signaling
    Patent number: 11515912
    Abstract: A network node signals to a wireless communication device which precoders in a codebook are restricted from being used. The network node in this regard generates codebook subset restriction signaling that, for each of one or more groups of precoders, jointly restricts the precoders in the group by restricting a certain component (e.g., a certain beam precoder) that the precoders in the group have in common. This signaling may be for instance rank-agnostic signaling that jointly restricts the precoders in a group without regard to the precoders' transmission rank. Regardless, the network node sends the generated signaling to the wireless communication device.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: November 29, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sebastian Faxér, Mattias Frenne, Simon Järmyr, George Jöngren, Niklas Wernersson
  • Compression and Decompression of Downlink Channel Estimates
    Publication number: 20220376749
    Abstract: A network node determines parameters indicating a compression function for compressing downlink channel estimates, and a decompression function. The network node transmits the parameters, receives compressed downlink channel estimates, and decompresses the compressed downlink channel estimates using the decompression function. A terminal device receives the parameters, forms the compression function, compresses downlink channel estimates using the compression function, and transmits the compressed downlink channel estimates. The compression function comprises a first function formed based on at least some of the parameters, a second function which is non-linear, and a quantizer. The first function is configured to receive input data, and to reduce a dimension of the input data. The decompression function comprises a first function configured to receive input data and provide output data in a higher dimensional space than the input data, and a second function which is non-linear.
    Type: Application
    Filed: August 2, 2022
    Publication date: November 24, 2022
    Inventors: Roy Timo, Sebastian Faxér, Niklas Wernersson, Simon Järmyr
  • Compression and decompression of downlink channel estimates
    Patent number: 11509363
    Abstract: A network node (501) determines parameters (503) indicating a compression function for compressing downlink channel estimates, and a decompression function. The network node transmits the parameters, receives compressed downlink channel estimates (504), and decompresses the compressed downlink channel estimates using the decompression function. A terminal device (502) receives the parameters, forms the compression function, compresses downlink channel estimates using the compression function, and transmits the compressed downlink channel estimates. The compression function comprises a first function formed based on at least some of the parameters, a second function which is non-linear, and a quantizer. The first function is configured to receive input data, and to reduce a dimension of the input data. The decompression function comprises a first function configured to receive input data and provide output data in a higher dimensional space than the input data, and a second function which is non-linear.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: November 22, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Roy Timo, Sebastian Faxér, Niklas Wernersson, Simon Järmyr
  • Method for differentiating multiple physical downlink shared channel (PDSCH) transmission schemes
    Patent number: 11395319
    Abstract: A method for differentiating multiple Physical Downlink Shared Channel (PDSCH) transmission schemes. In a non-limiting example, the PDSCH transmission schemes include a spatial multiplexing transmission scheme, a frequency multiplexing transmission scheme, a slot-based time multiplexing transmission scheme, and a mini-slot-based time multiplexing transmission scheme. In examples discussed herein, a User Equipment (UE) can be configured to differentiate the PDSCH transmission schemes based on information indicated in Downlink Control Information (DCI) for scheduling a PDSCH transmission, information signaled to the UE via a higher layer configuration, and/or capability signaling indicated from the UE to a network. By differentiating the PDSCH transmission schemes, the UE can efficiently receive a data transmission(s) from multiple Transmission/Reception Points (TRPs).
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: July 19, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Siva Muruganathan, Sebastian Faxér, Mattias Frenne, Shiwei Gao, Simon Järmyr
  • Methods for Reference Signal Mapping in Non-Linear Precoding MIMO Transmission
    Publication number: 20220217023
    Abstract: Embodiments include methods for operating a network node in a wireless network. Such embodiments include applying non-linear precoding to a first data stream to remove a representation of expected inter-stream interference due to a second data stream, thereby generating a corrected first data stream. Such embodiments also include applying linear precoding to the corrected first data stream and to a first reference signal (RS) stream to generate a first signal layer, wherein the first RS stream is not corrected for the expected inter-stream interference prior to applying the linear precoding. Such embodiments also include transmitting the first signal layer to a user equipment (UE). Other embodiments include complementary methods performed by a UE, as well as network nodes and UEs configured to perform operations corresponding to such methods.
    Type: Application
    Filed: May 6, 2019
    Publication date: July 7, 2022
    Inventors: Zhao Wang, Maksym Girnyk, Roy Timo, Niklas Wernersson, Simon Järmyr
  • Network architecture, methods, and devices for a wireless communications network
    Patent number: 11381445
    Abstract: Methods and apparatus in a fifth-generation wireless communications network, including an example method, in a wireless device, that includes determining a reporting quality threshold for a parameter related to channel state information (CSI); performing a measurement for each of a plurality of beams from a first predetermined set of beams for evaluation; evaluating the measurement for each of the plurality of beams against the reporting quality threshold; discontinuing the performing and evaluating of measurements in response to determining that the reporting quality threshold is met for one of the beams, such that one or more beams in the first predetermined set of beams are not measured and evaluated; and reporting, to the wireless communications network, CSI for the one of the beams.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: July 5, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Stefan Parkvall, Janne Peisa, Gunnar Mildh, Robert Baldemair, Stefan Wager, Jonas Kronander, Karl Werner, Richard Abrahamsson, Ismet Aktas, Peter Alriksson, Junaid Ansari, Shehzad Ali Ashraf, Henrik Asplund, Fredrik Athley, Håkan Axelsson, Joakim Axmon, Johan Axnäs, Kumar Balachandran, Gunnar Bark, Jan-Erik Berg, Andreas Bergström, Håkan Björkegren, Nadia Brahmi, Cagatay Capar, Anders Carlsson, Andreas Cedergren, Mikael Coldrey, Icaro L. J. da Silva, Erik Dahlman, Ali El Essaili, Ulrika Engström, Mårten Ericson, Erik Eriksson, Mikael Fallgren, Rui Fan, Gabor Fodor, Pål Frenger, Jonas Fridén, Jonas Fröberg Olsson, Anders Furuskär, Johan Furuskog, Virgile Garcia, Ather Gattami, Fredrik Gunnarsson, Ulf Gustavsson, Bo Hagerman, Fredrik Harrysson, Ning He, Martin Hessler, Kimmo Hiltunen, Songnam Hong, Dennis Hui, Jörg Huschke, Tim Irnich, Sven Jacobsson, Niklas Jaldén, Simon Järmyr, Zhiyuan Jiang, Martin Johansson, Niklas Johansson, Du Ho Kang, Eleftherios Karipidis, Patrik Karlsson, Ali S. Khayrallah, Caner Kilinc, Göran N. Klang, Sara Landström, Christina Larsson, Gen Li, Bo Lincoln, Lars Lindbom, Robert Lindgren, Bengt Lindoff, Fredrik Lindqvist, Jinhua Liu, Thorsten Lohmar, Qianxi Lu, Lars Manholm, Ivana Maric, Jonas Medbo, Qingyu Miao, Reza Moosavi, Walter Müller, Elena Myhre, Johan Nilsson, Karl Norrman, Bengt-Erik Olsson, Torgny Palenius, Sven Petersson, Jose Luis Pradas, Mikael Prytz, Olav Queseth, Pradeepa Ramachandra, Edgar Ramos, Andres Reial, Thomas Rimhagen, Emil Ringh, Patrik Rugeland, Johan Rune, Joachim Sachs, Henrik Sahlin, Vidit Saxena, Nima Seifi, Yngve Selén, Eliane Semaan, Sachin Sharma, Cong Shi, Johan Sköld, Magnus Stattin, Anders Stjernman, Dennis Sundman, Lars Sundström, Miurel Isabel Tercero Vargas, Claes Tidestav, Sibel Tombaz, Johan Torsner, Hugo Tullberg, Jari Vikberg, Peter Von Wrycza, Thomas Walldeen, Anders Wallén, Pontus Wallentin, Hai Wang, Ke Wang Helmersson, Jianfeng Wang, Yi-Pin Eric Wang, Niclas Wiberg, Emma Wittenmark, Osman Nuri Can Yilmaz, Ali Zaidi, Zhan Zhang, Zhang Zhang, Yanli Zheng
  • Method for differentiating multiple physical downlink shared channel (PDSCH) transmission schemes
    Patent number: 11357031
    Abstract: A method for differentiating multiple Physical Downlink Shared Channel (PDSCH) transmission schemes. In a non-limiting example, the PDSCH transmission schemes include a spatial multiplexing transmission scheme, a frequency multiplexing transmission scheme, a slot-based time multiplexing transmission scheme, and a mini-slot-based time multiplexing transmission scheme. In examples discussed herein, a User Equipment (UE) can be configured to differentiate the PDSCH transmission schemes based on information indicated in Downlink Control Information (DCI) for scheduling a PDSCH transmission, information signaled to the UE via a higher layer configuration, and/or capability signaling indicated from the UE to a network. By differentiating the PDSCH transmission schemes, the UE can efficiently receive a data transmission(s) from multiple Transmission/Reception Points (TRPs).
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: June 7, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Siva Muruganathan, Sebastian Faxér, Mattias Frenne, Shiwei Gao, Simon Järmyr
  • Code-Division Multiplexing (CDM) Groups for Multi-Source Transmission
    Publication number: 20220158805
    Abstract: Embodiments include methods, performed by a user equipment (UE), for transmitting or receiving a plurality of physical data channels in a wireless network. Such methods include receiving, from the wireless network, an indication of a Transmission Configuration Indicator (TCI) state that includes one or more source reference signal (RS) pairs. Each source RS pair has a pair of quasi-colocation (QCL) relations with antenna ports, for demodulation reference signals (DM-RS), that are mapped to a plurality of code-division multiplexing (CDM) groups. Such methods include receiving/transmitting the physical data channels based on the QCL relations for the source RS pairs of the indicated TCI state. Each physical data channel corresponds to a CDM group and is received/transmitted in association with the DM-RS having antenna ports mapped to the corresponding CDM group. Other embodiments include complementary methods performed by a wireless network, and UEs and wireless networks configured to perform such methods.
    Type: Application
    Filed: January 10, 2020
    Publication date: May 19, 2022
    Inventors: Mattias Frenne, Niklas Wernersson, Shiwei Gao, Sebastian Faxér, Simon Järmyr, Siva Muruganathan
  • Compression and Decompression of Downlink Channel Estimates
    Publication number: 20220149904
    Abstract: A network node (501) determines parameters (503) indicating a compression function for compressing downlink channel estimates, and a decompression function. The network node transmits the parameters, receives compressed downlink channel estimates (504), and decompresses the compressed downlink channel estimates using the decompression function. A terminal device (502) receives the parameters, forms the compression function, compresses downlink channel estimates using the compression function, and transmits the compressed downlink channel estimates. The compression function comprises a first function formed based on at least some of the parameters, a second function which is non-linear, and a quantizer. The first function is configured to receive input data, and to reduce a dimension of the input data. The decompression function comprises a first function configured to receive input data and provide output data in a higher dimensional space than the input data, and a second function which is non-linear.
    Type: Application
    Filed: March 6, 2019
    Publication date: May 12, 2022
    Inventors: Roy Timo, Sebastian Faxér, Niklas Wernersson, Simon Järmyr
  • METHOD FOR DIFFERENTIATING MULTIPLE PHYSICAL DOWNLINK SHARED CHANNEL (PDSCH) TRANSMISSION SCHEMES
    Publication number: 20220104237
    Abstract: A method for differentiating multiple Physical Downlink Shared Channel (PDSCH) transmission schemes. In a non-limiting example, the PDSCH transmission schemes include a spatial multiplexing transmission scheme, a frequency multiplexing transmission scheme, a slot-based time multiplexing transmission scheme, and a mini-slot-based time multiplexing transmission scheme. In examples discussed herein, a User Equipment (UE) can be configured to differentiate the PDSCH transmission schemes based on information indicated in Downlink Control Information (DCI) for scheduling a PDSCH transmission, information signaled to the UE via a higher layer configuration, and/or capability signaling indicated from the UE to a network. By differentiating the PDSCH transmission schemes, the UE can efficiently receive a data transmission(s) from multiple Transmission/Reception Points (TRPs).
    Type: Application
    Filed: March 30, 2020
    Publication date: March 31, 2022
    Inventors: Siva Muruganathan, Sebastian Faxér, Mattias Frenne, Shiwei Gao, Simon Järmyr
  • PHYSICAL DOWNLINK SHARED CHANNEL (PDSCH) RESOURCE MAPPING FOR MULTI-TRANSMISSION POINT (TRP)
    Publication number: 20220070901
    Abstract: Methods and apparatuses are disclosed for resource mapping. In one embodiment, a wireless device is provided. The wireless device includes processing circuitry (84) configured to: receive a plurality of physical downlink control channel, PDCCH, transmissions where the plurality of PDCCH transmissions includes a 5 plurality of downlink control information, DCI, messages scheduling a plurality of physical downlink shared channel, PDSCH, transmissions, and at least two of the plurality of PDSCH transmissions one of partially and fully overlap in a time domain; and perform PDSCH resource mapping for decoding the plurality of PDSCH transmissions based at least in part on the plurality of DCI messages.
    Type: Application
    Filed: January 9, 2020
    Publication date: March 3, 2022
    Inventors: Siva MURUGANATHAN, Mattias FRENNE, Sebastian FAXÉR, Simon JÄRMYR, Shiwei GAO
  • CSI FEEDBACK FOR DATA TRANSMISSION OVER MULTIPLE TRANSMISSION POINTS
    Publication number: 20210391967
    Abstract: Systems and methods for Channel State Information (CSI) feedback for multiple Transmission Points (TRPs) in a cellular communications network are disclosed. Embodiments of a method of operation of a wireless device and corresponding embodiments of a wireless device are disclosed. In some embodiments, a method performed by a wireless device for CSI feedback comprises receiving a configuration comprising N Non-Zero Power (NZP) CSI Reference Signal (CSI-RS) resources each associated with a different one of N TRPs or N sets of NZP CSI-RS resources each associated with a different one of the N TRPs. The method further comprises receiving a request for CSI feedback based on the configuration, selecting a preferred subset of the NZP CSI-RS resources comprised in the N NZP CSI-RS resources or the N sets of NZP CSI-RS resources, and reporting, to a base station, CSI based on the selected preferred subset of the NZP CSI-RS resources.
    Type: Application
    Filed: November 1, 2019
    Publication date: December 16, 2021
    Inventors: Shiwei GAO, Siva MURUGANATHAN, Sebastian FAXÉR, Mattias FRENNE, Simon JÄRMYR
  • Network Node, User Equipment and Methods Therein to Enable the UE to Determine a Precoder Codebook
    Publication number: 20210367646
    Abstract: A method performed by a base station of enabling a User Equipment (UE) to determine a precoder codebook in a wireless communication system is provided. The base station transmits, to the UE, information regarding precoder parameters enabling the UE to determine the precoder codebook. The precoder parameters are associated with a plurality of antenna ports of the base station. The precoder parameters relate to a first dimension and a second dimension of the precoder codebook. The plurality of antenna ports comprises a number of antenna ports that is a function of a number of antenna ports in the first dimension, and a number of antenna ports in the second dimension.
    Type: Application
    Filed: August 6, 2021
    Publication date: November 25, 2021
    Inventors: George Jöngren, Sebastian Faxér, Simon Järmyr, Niklas Wernersson
  • Codebook subset restriction signaling
    Patent number: 11139872
    Abstract: A network node signals to a wireless communication device which precoders in a codebook are restricted from being used. The network node in this regard generates codebook subset restriction signaling that, for each of one or more groups of precoders, jointly restricts the precoders in the group by restricting a certain component (e.g., a certain beam precoder) that the precoders in the group have in common. This signaling may be for instance rank-agnostic signaling that jointly restricts the precoders in a group without regard to the precoders' transmission rank. Regardless, the network node sends the generated signaling to the wireless communication device.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: October 5, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sebastian Faxér, Mattias Frenne, Simon Järmyr, George Jöngren, Niklas Wernersson
  • Network node, user equipment and methods therein to enable the UE to determine a precoder codebook
    Patent number: 11121749
    Abstract: A method performed by a base station of enabling a User Equipment (UE) to determine a precoder codebook in a wireless communication system is provided. The base station transmits, to the UE, information regarding precoder parameters enabling the UE to determine the precoder codebook. The precoder parameters are associated with a plurality of antenna ports of the base station. The precoder parameters relate to a first dimension and a second dimension of the precoder codebook. The plurality of antenna ports comprises a number of antenna ports that is a function of a number of antenna ports in the first dimension, and a number of antenna ports in the second dimension.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: September 14, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: George Jöngren, Sebastian Faxér, Simon Järmyr, Niklas Wernersson
  • Codebook Subset Restriction Signaling
    Publication number: 20210167824
    Abstract: A network node signals to a wireless communication device which precoders in a codebook are restricted from being used. The network node in this regard generates codebook subset restriction signaling that, for each of one or more groups of precoders, jointly restricts the precoders in the group by restricting a certain component (e.g., a certain beam precoder) that the precoders in the group have in common. This signaling may be for instance rank-agnostic signaling that jointly restricts the precoders in a group without regard to the precoders' transmission rank. Regardless, the network node sends the generated signaling to the wireless communication device.
    Type: Application
    Filed: February 5, 2021
    Publication date: June 3, 2021
    Inventors: Sebastian Faxér, Mattias Frenne, Simon Järmyr, George Jöngren