Patents by Inventor Mehdi Ahmadian

Mehdi Ahmadian 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: 12381762
    Abstract: A method for performing multiple-input and multiple-output channel estimation includes: generating, using a first machine-learning model, an initial set of estimated channel information from a first input set of channel information, wherein the first input set of channel information corresponds to a first plurality of radio-frequency chains, and wherein the estimated set of channel information corresponds to the first plurality of radio-frequency chains and a second plurality of radio-frequency chains; generating, using a second machine-learning model, a set of estimated channel phases from the initial set of estimated channel information and a second input set of channel information, wherein the second set of input channel information corresponds to the second plurality of radio-frequency chains; and combining the initial set of estimated channel information and the set of estimated channel phases to generate an enhanced set of estimated channel information.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: August 5, 2025
    Assignee: Nokia Technologies Oy
    Inventors: Wolfgang Zirwas, Brenda Vilas Boas, Zexian Li, Amir Mehdi Ahmadian Tehrani, Oana-Elena Barbu
  • Patent number: 12382489
    Abstract: According to an example aspect of the present invention, there is provided an apparatus, such as a user equipment, including at least one processing core, at least one memory including computer program code, the at least one memory and the computer program code being configured to, with the at least one processing core, cause the apparatus at least to initiate a random access process with a network by transmitting an initial random access message to the network, receive a random access response from the network, the random access response including a timing advance command bit sequence, determine from the timing advance command bit sequence a timing advance value and a configuration parameter, and transmit a request message to the network at least once in compliance with the configuration parameter.
    Type: Grant
    Filed: March 25, 2022
    Date of Patent: August 5, 2025
    Assignee: Nokia Technologies Oy
    Inventors: Marco Maso, Axel Mueller, Nhat-Quang Nhan, Karri Markus Ranta-Aho, Amir Mehdi Ahmadian Tehrani
  • Publication number: 20250212211
    Abstract: Disclosed are devices, methods, apparatuses, and computer readable media for dynamically adjusting repetition factor. An example terminal device may include at least one processor and at least one memory. The at least one memory may include computer program code, and the at least one memory and the computer program code may be configured to, with the at least one processor, cause the terminal device to perform: receiving, from a network device, a configuration for transmission of an uplink channel, the configuration comprising a repetition factor set and at least one parameter for determining a repetition factor from the repetition factor set; determining the repetition factor from the repetition factor set based on the at least one parameter; and performing the transmission of the uplink channel according to the determined repetition factor.
    Type: Application
    Filed: April 29, 2022
    Publication date: June 26, 2025
    Inventors: Alessio MARCONE, Jing Yuan SUN, Mads LAURIDSEN, Frank FREDERIKSEN, Amir Mehdi AHMADIAN TEHRANI
  • Patent number: 12342388
    Abstract: Example embodiments of the present disclosure relate to methods, devices, apparatuses and computer readable storage medium for Random Access Channel (RACH) occasion (RO) dropping. In a method, a device determines a set of valid random access channel occasions (ROs) for a physical random access channel (PRACH) transmission with preamble repetitions. The device determines that the PRACH transmission is to be dropped in at least one RO of the set of valid ROs. The device determines one or more ROs of the set of valid ROs for calculation of a random access radio network temporary identifier (RA-RNTI), the one or more ROs for calculation of the RA-RNTI are not conditioned to whether the corresponding PRACH transmission over the one or more ROs is to be dropped. Then the device calculates the RA-RNTI based on the determined one or more ROs of the set of valid ROs.
    Type: Grant
    Filed: October 18, 2024
    Date of Patent: June 24, 2025
    Assignee: NOKIA TECHNOLOGIES OY
    Inventors: Alessio Marcone, Nhat-Quang Nhan, Amir Mehdi Ahmadian Tehrani, Marco Maso, Leonardo Chiarello
  • Publication number: 20250113340
    Abstract: Example embodiments of the present disclosure relate to apparatuses, methods, and computer readable storage medium for bandwidth part switching. In a method, a first apparatus receives a downlink control information (DCI) message in a first bandwidth part (BWP). Based on at least one condition related to at least enabling of a dynamic transform precoder indication (DTPI) information element configured for the second BWP, the first apparatus determines at least one of a resource allocation type or a state of transform precoder for the PUSCH transmission. The first apparatus performs a transmission to a second apparatus on the second BWP using the at least one of the resource allocation type or the state of transform precoder for the PUSCH transmission.
    Type: Application
    Filed: September 11, 2024
    Publication date: April 3, 2025
    Inventors: Karim KASAN, Nhat-Quang NHAN, Marco MASO, Majed SAAD, Amir Mehdi AHMADIAN TEHRANI, Alessio MARCONE
  • Publication number: 20250113352
    Abstract: In example embodiments of the present disclosure, an apparatus receives a downlink control information (DCI) message in a first BWP, wherein the DCI message schedules, based on a condition being met, a physical uplink shared channel transmission and indicates to perform the transmission on a second BWP, wherein the condition comprising at least one of: a dynamic transform precoder indication (DTPI) information element is configured and set to enabled for the first BWP, a DTPI information element is configured and set to enabled for the second BWP, a bit-width of a frequency domain resource assignment (FDRA) field for the first BWP is smaller than a bit-width of an FDRA field for the second BWP in the DCI message, dynamic switching is configured in a resource allocation information element for the second BWP, and/or the DCI message includes a transform precoder indicator field set to disabled.
    Type: Application
    Filed: September 10, 2024
    Publication date: April 3, 2025
    Inventors: Karim KASAN, Nhat-Quang NHAN, Marco MASO, Majed SAAD, Amir Mehdi AHMADIAN TEHRANI, Alessio MARCONE
  • Publication number: 20250113305
    Abstract: Embodiments of the present disclosure relate to devices, methods, apparatuses, and computer readable storage media of uplink power control. A first apparatus receives a first DCI scheduling a first PUSCH transmission at a first TO, and a second DCI scheduling a second PUSCH transmission at a second TO subsequent to the first TO. The first apparatus determines a transmission power based on a second power control adjustment state and transmits the second PUSCH transmission at the second transmission power. The transmission power and/or the second power control adjustment state is determined based on at least one of: a first maximum transmission power at the first TO, a second maximum transmission power at the second TO, a value of the first TPI field of the first DCI, a value of the second TPI field in the second DCI or a first power control adjustment state for the first PUSCH transmission.
    Type: Application
    Filed: September 26, 2024
    Publication date: April 3, 2025
    Inventors: Amir Mehdi AHMADIAN TEHRANI, Alessio MARCONE, Nhat-Quang NHAN, Marco MASO, Majed SAAD, Karim KASAN
  • Patent number: 12245213
    Abstract: A method comprises: determining, at a user equipment, user equipment current operating conditions; identifying whether an antenna configuration for maintaining correspondence between user equipment transmission and reception beams is stored by the user equipment for the user equipment current operating conditions; and when the antenna configuration is identified, applying the antenna configuration for maintaining correspondence between the user equipment transmission and reception beams.
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: March 4, 2025
    Assignee: NOKIA TECHNOLOGIES OY
    Inventors: Samantha Caporal Del Barrio, Simon Svendsen, Johannes Harrebek, Amir Mehdi Ahmadian Tehrani
  • Publication number: 20250055537
    Abstract: Embodiments provide for an apparatus, method and computer program product at least for training an artificial intelligence decoder using at least an input to a hypothetical artificial intelligence encoder; determining a training dataset comprising the input to the hypothetical artificial intelligence encoder and at least one of: unquantized projected channel state information feedback, or dequantized projected channel state information feedback; transmitting the training dataset to a user equipment; and determining reconstructed channel state information, using the trained artificial intelligence decoder.
    Type: Application
    Filed: August 6, 2024
    Publication date: February 13, 2025
    Inventors: Jee Hyun KIM, Aakash SAINI, Amir Mehdi AHMADIAN TEHRANI, Filippo TOSATO
  • Publication number: 20250056244
    Abstract: Embodiments of the present disclosure relate to apparatuses, methods, devices and computer readable storage medium for communication functionality validation. In a method, a first apparatus receives, from a second apparatus, a first performance metric of a first outcome of a communication functionality based on a first set of communication parameters. The first apparatus receives, from the second apparatus, a reference performance metric of a reference outcome of the communication functionality based on a set of reference communication parameters. The first apparatus validates the communication functionality based on a threshold and a first difference between the first performance metric and the reference performance metric.
    Type: Application
    Filed: August 8, 2024
    Publication date: February 13, 2025
    Inventors: Fahad SYED MUHAMMAD, Tachporn SANGUANPUAK, Frederick VOOK, Amir Mehdi AHMADIAN TEHRANI, Dimitri GOLD, Andrea BONFANTE
  • Publication number: 20250055545
    Abstract: An apparatus configured to: transmit, to at least one UE, an indication of a measurement reporting scheme; transmit, to the at least one UE, at least one RS on at least one first beam; receive, from the at least one UE, a set of RSRP measurements of one or more of the at least one RS, according to the measurement reporting scheme; and provide the set of RSRP measurements to a machine learning model for prediction of best beams from a second set of beams. An apparatus configured to: receive, from a network node, an indication of a measurement reporting scheme; measure at least one RS on at least one first beam; generate a set of RSRP measurements of one or more of the at least one reference signal based, at least partially, on the measurement reporting scheme; and transmit, to the network node, the set of RSRP measurements.
    Type: Application
    Filed: July 30, 2024
    Publication date: February 13, 2025
    Inventors: Sajad Rezaie, Amir Mehdi Ahmadian Tehrani, Keeth Saliya Jayasinghe Laddu
  • Publication number: 20250047398
    Abstract: The present document provides for performing measurements for beam management. According to an aspect, a method comprises: determining a mode for beam management, based on a configuration that indicates the mode for beam management; switching to the mode for beam management; performing at least one measurement related to artificial intelligence or machine learning beam management, while operating in the mode for beam management; and transmitting the at least one measurement to a test equipment or a network.
    Type: Application
    Filed: July 2, 2024
    Publication date: February 6, 2025
    Inventors: Tachporn SANGUANPUAK, Fahad SYED MUHAMMAD, Frederick VOOK, Amir Mehdi AHMADIAN TEHRANI, Andrea BONFANTE, Dimitri GOLD
  • Publication number: 20250048440
    Abstract: Example embodiments of the present disclosure relate to methods, devices, apparatuses and computer readable storage medium for Random Access Channel (RACH) occasion (RO) dropping. In a method, a device determines a set of valid random access channel occasions (ROs) for a physical random access channel (PRACH) transmission with preamble repetitions. The device determines that the PRACH transmission is to be dropped in at least one RO of the set of valid ROs. The device determines one or more ROs of the set of valid ROs for calculation of a random access radio network temporary identifier (RA-RNTI), the one or more ROs for calculation of the RA-RNTI are not conditioned to whether the corresponding PRACH transmission over the one or more ROs is to be dropped. Then the device calculates the RA-RNTI based on the determined one or more ROs of the set of valid ROs.
    Type: Application
    Filed: October 18, 2024
    Publication date: February 6, 2025
    Inventors: Alessio MARCONE, Nhat-Quang NHAN, Amir Mehdi AHMADIAN TEHRANI, Marco MASO, Leonardo CHIARELLO
  • Publication number: 20250047361
    Abstract: This document discloses a method and an apparatus to perform using a predicted sequence of beam measurement outputs for at least one observation window associated with at least one prediction window providing reference signal received power measurements to predict a beam prediction output; identifying that a prediction window of the at least one prediction window is overlapped with at least a portion of an observation window of the at least one observation window over a time period; and comparing the beam prediction output during the overlapped portion with measurements of the observation window during the overlapped portion to perform long term real time monitoring to determine at least one prediction output for use in a next time instant, wherein the determining is based on a predicted reference signal received power of the at least one prediction output being above a threshold.
    Type: Application
    Filed: July 8, 2024
    Publication date: February 6, 2025
    Inventors: Tachporn SANGUANPUAK, Frederick VOOK, Amir Mehdi AHMADIAN TEHRANI, Andrea BONFANTE, Keeth Saliya JAYASINGHE LADDU
  • Publication number: 20250039846
    Abstract: According to an example aspect of the present invention, there is provided a method for a first device, comprising: receiving a first radio transmission from a third device; determining, based on the received first radio transmission, at least one radio resource expected to be used for communication by the third device; determining a first direction from which the first radio transmission from the third device is received at the first device; determining a radio resource set based on the determined at least one radio resource and the determined first direction; and selecting one or more radio resources from the determined radio resource set for communication with a second device or transmitting the determined radio resource set to the second device or a network entity.
    Type: Application
    Filed: December 22, 2021
    Publication date: January 30, 2025
    Inventors: Daniel MEDINA, Prajwal KESHAVAMURTHY, Ali KARIMIDEHKORDI, Amir Mehdi AHMADIAN TEHRANI, Alessio MARCONE, Torsten WILDSCHEK
  • Publication number: 20250031068
    Abstract: The present disclosure relates to a solution for functionality-based performance monitoring. In particular, a solution is proposed to enable functionality-based performance monitoring via sending updates on the configured/identified functionalities using applicable conditions framework. In this way, it can improve performance of the AI/ML entity.
    Type: Application
    Filed: July 18, 2024
    Publication date: January 23, 2025
    Inventors: Amir Mehdi AHMADIAN TEHRANI, Andrea BONFANTE, Keeth Saliya Jayasinghe LADDU, Frederick VOOK, Tachporn SANGUANPUAK
  • Publication number: 20240397341
    Abstract: Various examples of embodiments described herein relate to methods and apparatuses for optimized conditional transactions. One such example of an embodiment relates to an apparatus caused to obtain a downlink, DL, reception, Rx, indicator for measuring DL transmission, Tx, beams and/or Tx-Rx beam pairs, the DL Rx indicator indicative of a Rx antenna panel and/or a Rx beam to be used and/or used by the apparatus for reference signal measurements; perform reference signal measurements on at least one received reference signal by using the Rx antenna panel and/or the Rx beam indicative in the DL Rx indicator, wherein a reference signal of the at least one received reference signal is associated with a respective Tx beam; and report a measurement result of the performed reference signal measurements.
    Type: Application
    Filed: May 8, 2024
    Publication date: November 28, 2024
    Inventors: Andrea BONFANTE, Frederick VOOK, Amir Mehdi AHMADIAN TEHRANI, Keeth Saliya Jayasinghe LADDU, Tachporn SANGUANPUAK, Mihai ENESCU
  • Publication number: 20240389078
    Abstract: An apparatus configured to: receive, from a user equipment, assistance information on power amplifier characteristics of the user equipment, wherein the user equipment is configured to perform multiple uplink transmissions to multiple cells; configure at least one uplink transmission resource, based on the assistance information, for at least one uplink transmission of the multiple uplink transmissions; and transmit, to the user equipment, an indication of a waveform switching configuration related to the at least one uplink transmission resource.
    Type: Application
    Filed: May 14, 2024
    Publication date: November 21, 2024
    Inventors: Karim KASAN, Majed SAAD, Amir Mehdi AHMADIAN TEHRANI, Nhat-Quang NHAN, Marco MASO
  • Publication number: 20240381321
    Abstract: According to an example aspect of the present invention, there is provided a method, comprising, receiving, by a user equipment, a timing advance command from a wireless network node, wherein the timing advance command comprises a timing advance value and the user equipment is in an inactive or idle state, selecting, by the user equipment, a coverage enhancement configuration using the timing advance value and transmitting, by the user equipment, at least one message to the wireless network node using the selected coverage enhancement configuration.
    Type: Application
    Filed: September 1, 2021
    Publication date: November 14, 2024
    Inventors: Amir Mehdi AHMADIAN TEHRANI, Axel MUELLER, Arto LEHTI, Marco MASO, Esa Tapani TIIROLA
  • Publication number: 20240357508
    Abstract: An apparatus configured to: transmit, to a base station, a capability related to mTRP operation, comprising at least one of: a first indication of one or more power amplifier configurations, a second indication of at least one first time duration to reach at least one target power change, a third indication of a second time duration during which a waveform is to be maintained, a fourth indication of a relative power tolerance associated with the at least one target power change, or a fifth indication of a capability for achieving a predetermined relative power tolerance during a predetermined time duration during the multiple transmission and reception point operation; receive, from the base station, a sixth indication of at least one waveform for use during one or more respective transmissions of a plurality of PUSCH transmissions; and receive, from the base station, an uplink configuration for the plurality of PUSCH transmissions.
    Type: Application
    Filed: April 4, 2024
    Publication date: October 24, 2024
    Inventors: Majed SAAD, Karim KASAN, Nhat-Quang NHAN, Amir Mehdi AHMADIAN TEHRANI, Marco MASO, Alessio MARCONE