Patents by Inventor Roy TIMO
Roy TIMO 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).
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Publication number: 20250096855Abstract: There is provided mechanisms for transmission of reference signals. A method is performed by a terminal device. The terminal device comprises at least two physical antenna ports. The method comprises creating a virtual antenna port for, and applied over, at least two of the physical antenna ports. The method comprises transmitting, in the virtual antenna port, as many uplink reference signals as there are physical antenna ports.Type: ApplicationFiled: July 22, 2024Publication date: March 20, 2025Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Sven PETERSSON, Fredrik ATHLEY, Andreas NILSSON, Roy TIMO, Xinlin ZHANG
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Publication number: 20250048136Abstract: A method (100) is disclosed for managing a wireless device that is operable to connect to a communication network, wherein the communication network comprises a Radio Access Network (RAN), and wherein the wireless device has available for execution a Machine Learning (ML) model that is operable to provide an output, on the basis of which a RAN operation performed by the wireless device may be configured. The method, performed by a RAN node of the communication network, comprises, on fulfilment of a trigger condition, causing an ML model Assurance Information, MAI, Request to be sent to the wireless device (110), the MAI Request comprising an indication of the ML model to which the MAI Request relates.Type: ApplicationFiled: December 13, 2021Publication date: February 6, 2025Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Reza MOOSAVI, Henrik RYDÉN, Erik G. LARSSON, Martin ISAKSSON, Mårten SUNDBERG, Roy TIMO
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Publication number: 20250047346Abstract: Providing channel state information, CSI, in a wireless communications network by a first node to a second node. The first node has access to one or more trained Neural Network, NN,-based Auto Encoder, AE,-encoder models for encoding the CSI and the second node has access to one or more trained NN-based AE-decoder models for decoding the CSI provided by the first node. The method includes receiving, from the second node, an indication of an NN-based AE-decoder model out of the one or more trained models; selecting a trained model out of the one or more trained models to use for the NN-based AE-encoder based on the received indication of the NN-based AE-decoder model such that the selected trained model is compatible with the indicated NN-based AE-decoder model; and transmitting (604) the CSI to the second node based on output from the selected trained model.Type: ApplicationFiled: October 25, 2022Publication date: February 6, 2025Inventors: Roy TIMO, Mattias FRENNE, Lars LINDBOM
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Patent number: 12191951Abstract: The present disclosure relates to a method performed by a wireless node (100) for transmitting reference symbols, the node comprising an antenna with a plurality of antenna ports, the method comprising configuring channel state information, CSI, measurements of a user equipment, UE (110), by transmitting a downlink message, transmitting a first reference symbol using the plurality of antenna ports, wherein the first reference symbol is transmitted using a first number N of antenna ports, transmitting a second reference symbol using the plurality of antenna ports, wherein the second reference symbol is transmitted using a second number K of antenna ports, wherein the first reference symbol is transmitted using a first port distance smaller than a second port distance used when transmitting the second reference symbol, and wherein the K used antenna ports are less than the N used antenna ports.Type: GrantFiled: December 5, 2018Date of Patent: January 7, 2025Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Niklas Wernersson, Maksym Girnyk, Roy Timo
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Patent number: 12171016Abstract: There is provided mechanisms for interference handling. A method is performed by a radio access network node. The method comprises obtaining an indication of interference in a time/frequency interval. The method comprises querying a neighbouring radio access network node about scheduling in the time/frequency interval of uplink wireless transmission from any terminal device served by the neighbouring radio access network node. The method comprises receiving a response from the neighbouring radio access network node. The response comprises information identifying uplink reference signal resources/ports, and their scheduling, as to be used by the terminal device scheduled in the time/frequency interval.Type: GrantFiled: July 9, 2019Date of Patent: December 17, 2024Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Andreas Nilsson, Sven Petersson, Fredrik Athley, Roy Timo, Xinlin Zhang
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Publication number: 20240283509Abstract: Embodiments include methods for a radio access network (RAN) node configured to serve one or more user equipment (UEs). Such methods include transmitting reference signals (RS) for a downlink (DL) channel and receiving, from a UE, a report including encoded feedback representing the DL channel. The encoded feedback comprises a UE DL channel estimate mapped to a channel feature set based on a first mapping that is proprietary to the UE. The channel feature set is compressed based on a second mapping that is known by the UE and the RAN node. Such methods also include, using a decoder function of a neural-network autoencoder (NNAE), decoding the encoded feedback to obtain a reconstruction of the channel feature set. Other embodiments include complementary methods for a UE, as well as RAN nodes and UEs configured to perform such methods.Type: ApplicationFiled: June 27, 2022Publication date: August 22, 2024Inventors: Roy Timo, Mattias Frenne, Rakesh Ranjan, Xinlin Zhang
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Patent number: 12068892Abstract: 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. 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: GrantFiled: May 6, 2019Date of Patent: August 20, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Zhao Wang, Maksym Girnyk, Roy Timo, Niklas Wernersson, Simon Järmyr
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Publication number: 20240275519Abstract: Embodiments include methods for a radio access network (RAN) node. Such methods include transmitting downlink (DL) reference signals (RS) in accordance with one or more configurations and receiving, from each of one or more user equipment (UEs), feedback representing a DL channel from the RAN node to the UE. The feedback is based on the UE's measurements of the transmitted DL RS and is encoded by one or more UE encoders that correspond to respective RAN node decoders. Such methods include, for each of the one or more UEs, obtaining one or more measurements of uplink (UL) RS transmitted by the UE in accordance with the one or more configurations. Such methods include training the RAN node decoder(s) based on the received feedback and the obtained UL RS measurements. Other embodiments include complementary methods for UEs, as well as RAN nodes and UEs configured to perform such methods.Type: ApplicationFiled: June 22, 2022Publication date: August 15, 2024Inventors: Roy Timo, Rakesh Ranjan, Henrik Rydén, Xinlin Zhang, Mattias Frenne
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Publication number: 20240275451Abstract: A method performed by a wireless device (510, 800, 1200) for reporting channel state information (CSI) for a downlink channel is disclosed. The method comprises transmitting (601, 705) a CSI report for the downlink channel to a network node (560, 1100), the CSI report comprising: a set of reported coefficients; an indication of how the network node is to interpret the set of reported coefficients; and an indication of a payload size of the set of the reported coefficients.Type: ApplicationFiled: December 21, 2023Publication date: August 15, 2024Inventors: Sebastian Faxér, Roy Timo, Niklas Wernersson, Maksym Girnyk, Zhao Wang
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Patent number: 12047130Abstract: There is provided mechanisms for transmission of reference signals. A method is performed by a terminal device. The terminal device comprises at least two physical antenna ports. The method comprises creating a virtual antenna port for, and applied over, at least two of the physical antenna ports. The method comprises transmitting, in the virtual antenna port, as many uplink reference signals as there are physical antenna ports.Type: GrantFiled: October 1, 2021Date of Patent: July 23, 2024Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Sven Petersson, Fredrik Athley, Andreas Nilsson, Roy Timo, Xinlin Zhang
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Patent number: 12034461Abstract: In a first method, a wireless device estimates a delay profile of a channel impulse response, CIR, for a channel between a network node and the wireless device, compresses the delay profile using a compression function, and transmits the compressed delay profile. The compression function includes a first function and a quantizer. The first function is configured to receive input data and reduce a dimension of the input data. In a second method, a network node receives a compressed delay profile of CIR for a channel between a network node and a wireless device, decompresses the compressed delay profile using a decompression function, and estimates a position of the wireless device based on at least the decompressed delay profile. The decompression function includes a first function which is configured to receive input data and provide output data in a higher dimensional space than the input data.Type: GrantFiled: March 6, 2020Date of Patent: July 9, 2024Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Henrik Rydén, Roy Timo, Maksym Girnyk, Hamed Farhadi
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Publication number: 20240195557Abstract: There is provided mechanisms for transmission of reference signals. A method is performed by a terminal device. The terminal device comprises at least two physical antenna ports. The method comprises obtaining channel information. The method comprises determining, for at least one given precoder in a codebook, an uplink reference signal to physical antenna port mapping based on the channel information. The method comprises transmitting uplink reference signals in the physical antenna ports according to the determined mapping.Type: ApplicationFiled: November 10, 2023Publication date: June 13, 2024Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Sven PETERSSON, Fredrik ATHLEY, Andreas NILSSON, Roy TIMO, Xinlin ZHANG
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Patent number: 11863271Abstract: The disclosure includes a host operating in a communication system to provide an over-the-top (OTT) service. The host includes processing circuitry configured to initiate transmission of user data to a network node in a cellular network to a user equipment (UE). The network node is configured to receive a CSI report for a downlink channel from a wireless device and transmit the user data from the host to the UE to provide the OTT service based on the CSI report. The CSI report includes a set of reported coefficients; an indication of how the network node is to interpret the set of reported coefficients, wherein the indication of how the network node is to interpret the set of reported coefficients indicates the set of reported coefficients as a subset of a set of candidate reported coefficients; and an indication of a payload size of the set of the reported coefficients.Type: GrantFiled: March 7, 2023Date of Patent: January 2, 2024Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Sebastian Faxér, Roy Timo, Niklas Wernersson, Maksym Girnyk, Zhao Wang
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Patent number: 11855728Abstract: A method performed by a wireless device (510, 800, 1200) for reporting channel state information (CSI) for a downlink channel is disclosed. The method comprises transmitting (601, 705) a CSI report for the downlink channel to a network node (560, 1100), the CSI report comprising: a set of reported coefficients; an indication of how the network node is to interpret the set of reported coefficients; and an indication of a payload size of the set of the reported coefficients.Type: GrantFiled: August 25, 2022Date of Patent: December 26, 2023Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Sebastian Faxér, Roy Timo, Niklas Wernersson, Maksym Girnyk, Zhao Wang
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Patent number: 11855921Abstract: There is provided mechanisms for transmission of reference signals. A method is performed by a terminal device. The terminal device comprises at least two physical antenna ports. The method comprises obtaining channel information. The method comprises determining, for at least one given precoder in a codebook, an uplink reference signal to physical antenna port mapping based on the channel information. The method comprises transmitting uplink reference signals in the physical antenna ports according to the determined mapping.Type: GrantFiled: August 3, 2022Date of Patent: December 26, 2023Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Sven Petersson, Fredrik Athley, Andreas Nilsson, Roy Timo, Xinlin Zhang
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Patent number: 11770286Abstract: A method performed by a radio unit for handling a number of received radio signals over an array of antennas comprised in the radio unit. The radio unit transforms the number of received radio signals into a number of sequences of complex symbols. The radio unit further filters the number of sequences of complex symbols by inputting the number of sequences of complex symbols into a trained computational model comprising an alternating sequence of linear and nonlinear functions and thereby obtaining a reduced number of sequences. The radio unit further transmits the reduced number of sequences to a baseband unit over a front-haul link.Type: GrantFiled: September 13, 2019Date of Patent: September 26, 2023Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Roy Timo, Miguel Berg, Niklas Wernersson, Zhao Wang
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Patent number: 11728851Abstract: 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: GrantFiled: August 2, 2022Date of Patent: August 15, 2023Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Roy Timo, Sebastian Faxér, Niklas Wernersson, Simon Järmyr
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Publication number: 20230224006Abstract: The disclosure includes a host operating in a communication system to provide an over-the-top (OTT) service. The host includes processing circuitry configured to initiate transmission of user data to a network node in a cellular network to a user equipment (UE). The network node is configured to receive a CSI report for a downlink channel from a wireless device and transmit the user data from the host to the UE to provide the OTT service based on the CSI report. The CSI report includes a set of reported coefficients; an indication of how the network node is to interpret the set of reported coefficients, wherein the indication of how the network node is to interpret the set of reported coefficients indicates the set of reported coefficients as a subset of a set of candidate reported coefficients; and an indication of a payload size of the set of the reported coefficients.Type: ApplicationFiled: March 7, 2023Publication date: July 13, 2023Inventors: Sebastian Faxér, Roy Timo, Niklas Wernersson, Maksym Girnyk, Zhao Wang
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Publication number: 20230109257Abstract: In a first method, a wireless device estimates a delay profile of a channel impulse response, CIR, for a channel between a network node and the wireless device, compresses the delay profile using a compression function, and transmits the compressed delay profile. The compression function includes a first function and a quantizer. The first function is configured to receive input data and reduce a dimension of the input data. In a second method, a network node receives a compressed delay profile of CIR for a channel between a network node and a wireless device, decompresses the compressed delay profile using a decompression function, and estimates a position of the wireless device based on at least the decompressed delay profile. The decompression function includes a first function which is configured to receive input data and provide output data in a higher dimensional space than the input data.Type: ApplicationFiled: March 6, 2020Publication date: April 6, 2023Inventors: Henrik RYDÉN, Roy TIMO, Maksym GIRNYK, Hamed FARHADI
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Publication number: 20230064664Abstract: A method performed by a wireless device (510, 800, 1200) for reporting channel state information (CSI) for a downlink channel is disclosed. The method comprises transmitting (601, 705) a CSI report for the downlink channel to a network node (560, 1100), the CSI report comprising: a set of reported coefficients; an indication of how the network node is to interpret the set of reported coefficients; and an indication of a payload size of the set of the reported coefficients.Type: ApplicationFiled: August 25, 2022Publication date: March 2, 2023Inventors: Sebastian Faxer, Roy Timo, Niklas Wernersson, Maksym Girnyk, Zhao Wang