Patents by Inventor Muris Sarajlic
Muris Sarajlic 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: 20250038821Abstract: A method, performed by a wireless communications device, for beam training with a radio access network of a wireless communications system. The wireless communications device is configured with a first set of multiple beams for a first beam training and a second set of multiple beams for a second beam training. The second set is different from the first set, the method including: performing the first beam training with the first set of multiple beams; calculating a channel metric associated with the wireless communications device based on the performed first beam training with the first set; selecting, for the second beam training, a subset of beams of the second set based on the calculated channel metric; and performing the second beam training with the selected subset.Type: ApplicationFiled: November 29, 2021Publication date: January 30, 2025Inventors: Sina MALEKI, Muris SARAJLIC, Joao VIEIRA
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Publication number: 20240348319Abstract: Methods for a communication node configured with an antenna array having a plurality of antenna elements. Such methods include determining a link metric for a data transmission received or transmitted using a first portion of the antenna elements, and determining a first value for a first function of the link metric and of a performance target for the link metric. Such methods include, based on the first value, selectively updating the first portion and a second portion of the antenna elements by a first number. The second portion is disjoint from the first portion. Such methods include concurrently performing the following when the updated second portion includes at least one antenna element: receiving or transmitting one or more data transmissions using a first beam formed by the updated first portion; and scanning for reference signal transmissions using a second beam formed by the updated second portion.Type: ApplicationFiled: July 16, 2021Publication date: October 17, 2024Inventors: Joao VIEIRA, Robert BALDEMAIR, Sina MALEKI, Muris SARAJLIC
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Publication number: 20240276492Abstract: This disclosure presents a method (600) of skipped channel buffering performed by a wireless device configured to receive downlink, DL, transmissions in multiple beams from a network node. The method (600) comprises monitoring (610) a beam scheduling of the network node and, based on the monitoring (610), determining (620) a probability that a current DL channel transmission is scheduled in a default beam. Responsive to the probability that the current DL channel transmission is scheduled in the default beam is at or below a scheduling threshold, skipping (630) buffering of DL channel transmissions in the default beam. A wireless device, a computer program product and a carrier are also disclosed.Type: ApplicationFiled: June 7, 2021Publication date: August 15, 2024Inventors: Sina Maleki, Joao Vieira, Muris Sarajlic, Ilmiawan Shubhi
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Publication number: 20240267272Abstract: A method for reducing inter symbol interference (ISI) and inter carrier interference (ICI) in transmissions between a sender and a recipient within a wireless communication network. For at least one multicarrier symbol comprising a first subcarrier modulated with an original reference signal and multiplexed with a second subcarrier modulated with an original payload signal. The method includes applying a multiple symbol shift configuration on at least a second multicarrier symbol adjacent to the first multicarrier symbol by repeating the original reference signal and the original payload signal in the second multicarrier symbol on respective subcarriers and applying a linear phase shift to each repeated reference signal and payload signal. The same linear phase shift is used for both the repeated reference signal and the repeated payload signal.Type: ApplicationFiled: May 25, 2021Publication date: August 8, 2024Inventors: Robert BALDEMAIR, Joao VIEIRA, Muris SARAJLIC
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Publication number: 20240171434Abstract: Embodiments of the present disclosure provide a method, a transmitter node, a receiver node, and a computer program product for communication of information in a communication channel comprising at least one main band and an adjacent guard band. The method is performed by a transmitter node in a wireless communication network. The method comprises determining whether to transmit information in the guard band based one or more configured transmission parameters associated with the transmitter node. Upon determination to transmit information in the guard band, the method comprises determining transmission power for frequency resources allocated in the guard band based on a spectral mask defining a power density limit across an allocated frequency range. The method further comprises transmitting first information on the frequency resources allocated in the guard band and second information on frequency resources allocated in the main band to a receiver node according to the determined transmission power.Type: ApplicationFiled: January 30, 2024Publication date: May 23, 2024Inventors: Muris Sarajlic, Joao Vieira, Jung-Fu Cheng, Robert Baldemair
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Publication number: 20240088975Abstract: A method is disclosed which is performed in a transmitter device configured for transmission of measurement signals for beam selection. The method comprises determining a collection of linear combinations of transmission beams, wherein the transmission beams are of a set of available transmission beams. A cardinality, R, of the collection of linear combinations of transmission beams is lower than a cardinality, N, of the set of available transmission beams. Each transmission beam in the set of available transmission beams is comprised in at least one linear combination of transmission beams, and at least one of the linear combinations of transmission beams comprises less than all transmission beams of the set of available transmission beams. The method also comprises transmitting measurement signals to a receiver device, wherein each of the measurement signals corresponds to a linear combination of transmission beams from the collection of linear combinations of transmission beams.Type: ApplicationFiled: March 5, 2021Publication date: March 14, 2024Inventors: Joao Vieira, Robert Baldemair, Muris Sarajlic
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Patent number: 11930385Abstract: There is disclosed a method of operating a measuring radio node in a wireless communication network, the method includes transmitting signaling based on delay spread information, the delay spread information being based on and/or representing delay spread associated to received reference signaling. There are also disclosed related devices and method.Type: GrantFiled: December 29, 2021Date of Patent: March 12, 2024Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Muris Sarajlic, Joao Vieira, Niklas Wernersson
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Patent number: 11924011Abstract: Embodiments of the present disclosure provide a method, a transmitter node, a receiver node, and a computer program product for communication of information in a communication channel comprising at least one main band and an adjacent guard band. The method is performed by a transmitter node in a wireless communication network. The method comprises determining whether to transmit information in the guard band based one or more configured transmission parameters associated with the transmitter node. Upon determination to transmit information in the guard band, the method comprises determining transmission power for frequency resources allocated in the guard band based on a spectral mask defining a power density limit across an allocated frequency range. The method further comprises transmitting first information on the frequency resources allocated in the guard band and second information on frequency resources allocated in the main band to a receiver node according to the determined transmission power.Type: GrantFiled: September 15, 2021Date of Patent: March 5, 2024Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Muris Sarajlic, Joao Vieira, Jung-Fu Cheng, Robert Baldemair
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Patent number: 11877276Abstract: There is disclosed a method of operating a radio node in a wireless communication network. The method includes communicating using a first set of one or more signaling beams, wherein communicating includes performing beamforming for one or more signaling beams of the first set based on a set of beam signaling characteristics. Each beam signaling characteristic pertains to a reference beam. The disclosure also pertains to related devices and methods.Type: GrantFiled: April 13, 2021Date of Patent: January 16, 2024Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Muris Sarajlic, Ning He, Dennis Hui, Joao Vieira
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Publication number: 20230403063Abstract: There is disclosed a method of operating a signaling radio node in a wireless communication network. The method includes communicating utilising a signaling beam, the signaling beam being one of a first set of M beams represented or representable by a beam matrix F, wherein the signaling beam is determined based on a beam selection process utilising a second set of N beams represented or representable by a training matrix G, wherein N<M. The disclosure also pertains to related devices and methods.Type: ApplicationFiled: November 20, 2020Publication date: December 14, 2023Inventors: Joao VIEIRA, Muris SARAJLIC, Robert BALDEMAIR
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Patent number: 11728913Abstract: There is disclosed a method of operating a radio node in a wireless communication network. The method includes communicating using a selected signaling beam from a set of signaling beams, the selected signaling beam being selected based on a delay characteristic and a beam signaling characteristic of the signaling beams of the set of signaling beams. The disclosure also pertains to related devices and methods.Type: GrantFiled: April 5, 2022Date of Patent: August 15, 2023Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Joao Vieira, Robert Baldemair, Jung-Fu Cheng, Muris Sarajlic
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Patent number: 11705976Abstract: A method of beamforming calibration is disclosed for a multi-antenna transceiver configured to communicate with one or more other transceivers. The multi-antenna transceiver has a plurality of transceiver chains connectable to respective antenna elements of the multi-antenna transceiver. Each transceiver chain comprises a transmitter path and a receiver path. The method comprises (for each transceiver chain) feeding an analog signal from the transmitter path to the receiver path via connection circuitry between the transmitter path and the receiver path to provide a digital calibration signal, and determining a beamforming calibration factor for the transceiver chain based on the digital calibration signal. Corresponding apparatus, multi-antenna transceiver, wireless communication node, and computer program product are also disclosed.Type: GrantFiled: December 16, 2019Date of Patent: July 18, 2023Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)Inventors: Joao Vieira, Andres Reial, Muris Sarajlic
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Publication number: 20230101141Abstract: Embodiments of the present disclosure provide a method, a transmitter node, a receiver node, and a computer program product for communication of information in a communication channel comprising at least one main band and an adjacent guard band. The method is performed by a transmitter node in a wireless communication network. The method comprises determining whether to transmit information in the guard band based one or more configured transmission parameters associated with the transmitter node. Upon determination to transmit information in the guard band, the method comprises determining transmission power for frequency resources allocated in the guard band based on a spectral mask defining a power density limit across an allocated frequency range. The method further comprises transmitting first information on the frequency resources allocated in the guard band and second information on frequency resources allocated in the main band to a receiver node according to the determined transmission power.Type: ApplicationFiled: September 15, 2021Publication date: March 30, 2023Inventors: Muris Sarajlic, Joao Vieira, Jung-Fu Cheng, Robert Baldemair
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Publication number: 20230080882Abstract: There is disclosed a method of operating a transmitting radio arrangement in a wireless communication network, the transmitting radio arrangement utilising a first beam pair and a second beam pair for communicating with a radio node, the method including transmitting first signaling on the first beam pair and second signaling on the second beam pair, the first signaling and/or second signaling comprising an extend guard interval. The disclosure also pertains to related devices and methods.Type: ApplicationFiled: February 11, 2020Publication date: March 16, 2023Inventors: Joao Vieira, Muris Sarajlic, Robert Baldemair
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Publication number: 20230064199Abstract: There is disclosed a method of operating a radio node in a wireless communication network, the method comprising communicating utilising a first beam pair based on a timing indication, the timing indication being based on first signaling received utilising the first beam pair and second signaling received utilising a second beam pair.Type: ApplicationFiled: February 11, 2020Publication date: March 2, 2023Inventors: Joao VIEIRA, Muris SARAJLIC, Robert BALDEMAIR
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Publication number: 20230010448Abstract: A method of beamforming calibration is disclosed for a multi-antenna transceiver configured to communicate with one or more other transceivers. The multi-antenna transceiver has a plurality of transceiver chains connectable to respective antenna elements of the multi-antenna transceiver. Each transceiver chain comprises a transmitter path and a receiver path. The method comprises (for each transceiver chain) feeding an analog signal from the transmitter path to the receiver path via connection circuitry between the transmitter path and the receiver path to provide a digital calibration signal, and determining a beamforming calibration factor for the transceiver chain based on the digital calibration signal. Corresponding apparatus, multi-antenna transceiver, wireless communication node, and computer program product are also disclosed.Type: ApplicationFiled: December 16, 2019Publication date: January 12, 2023Inventors: Joao Vieira, Andres Reial, Muris Sarajlic
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Publication number: 20220407751Abstract: A method of operating a radio node in a wireless communication network includes communicating utilising signaling. The communication of the utilising signaling is based on performing pulse-shaping pertaining to the signaling. The pulse-shaping is based on a first pulse-shaping parameter beta. Other related devices and methods are disclosed.Type: ApplicationFiled: December 2, 2019Publication date: December 22, 2022Inventors: Joao VIEIRA, Muris SARAJLIC, Robert BALDEMAIR
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Publication number: 20220239394Abstract: There is disclosed a method of operating a radio node in a wireless communication network. The method includes communicating using a selected signaling beam from a set of signaling beams, the selected signaling beam being selected based on a delay characteristic and a beam signaling characteristic of the signaling beams of the set of signaling beams. The disclosure also pertains to related devices and methods.Type: ApplicationFiled: April 5, 2022Publication date: July 28, 2022Inventors: Joao VIEIRA, Robert BALDEMAIR, Jung-Fu CHENG, Muris SARAJLIC
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Patent number: 11323191Abstract: There is disclosed a method of operating a radio node in a wireless communication network. The method includes communicating using a selected signaling beam from a set of signaling beams, the selected signaling beam being selected based on a delay characteristic and a beam signaling characteristic of the signaling beams of the set of signaling beams. The disclosure also pertains to related devices and methods.Type: GrantFiled: October 23, 2020Date of Patent: May 3, 2022Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Joao Vieira, Robert Baldemair, Jung-Fu Cheng, Muris Sarajlic
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Publication number: 20220124541Abstract: There is disclosed a method of operating a measuring radio node in a wireless communication network, the method includes transmitting signaling based on delay spread information, the delay spread information being based on and/or representing delay spread associated to received reference signaling. There are also disclosed related devices and method.Type: ApplicationFiled: December 29, 2021Publication date: April 21, 2022Inventors: Muris SARAJLIC, Joao VIEIRA, Niklas WERNERSSON