Patents by Inventor Mehrnaz Afshang

Mehrnaz Afshang 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).

  • Publication number: 20230216716
    Abstract: There is disclosed a method of operating a receiving radio node in a wireless communication network. The method includes receiving first signaling, the first signaling covering at least one allocation unit carrying Demodulation Reference Signaling, DMRS. Receiving includes performing Inter Carrier Interference, ICI, suppression for the at least one allocation unit carrying DMRS based on received DMRS. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: March 13, 2023
    Publication date: July 6, 2023
    Inventors: Jung-Fu CHENG, Mehrnaz AFSHANG, Yuhang LIU, Stephen GRANT
  • Publication number: 20230216715
    Abstract: According to some embodiments, a method performed by a wireless device comprises receiving a wireless signal Rk over all subcarriers allocated to the wireless device. The signal Rk comprises a phase tracking reference signal (PT-RS) on a subset of subcarriers allocated to the wireless device and the subset comprises at least one non-contiguous subcarrier. The method further comprises computing a de-inter-carrier interference (ICI) filter based on the PT-RS and a channel estimate using a convolutional matrix CR of the received signal Rk and applying the de-ICI filter to the received signal Rk to generate a de-ICI filtered signal.
    Type: Application
    Filed: August 7, 2021
    Publication date: July 6, 2023
    Inventors: Dennis Hui, Mehrnaz Afshang, Jung-Fu Cheng, Stephen Grant
  • Patent number: 11671217
    Abstract: There is disclosed a method of operating a transmitting radio node in a wireless communication network, the method including transmitting reference signaling based on a reference pilot sequence, the reference pilot sequence being one of a set of reference pilot sequences, at least one reference pilot sequence of the set being a subsequence of another reference pilot sequence of the set. The disclosure also pertains to related devices and methods.
    Type: Grant
    Filed: October 9, 2020
    Date of Patent: June 6, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Dennis Hui, Jung-Fu Cheng, Mehrnaz Afshang
  • Publication number: 20230147504
    Abstract: There is disclosed a method of operating a transmitting node in a millimeter-wave communication network. The method includes transmitting communication signaling in a transmission timing structure, the communication signaling including leading reference signaling in a leading time interval at the beginning of the transmission timing structure and including trailing reference signaling in a trailing time interval at the end of the timing structure. The leading reference signaling starts with a first reference signaling time-domain sequence, and the trailing reference signaling ending with the first reference time-domain signaling sequence. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: January 5, 2023
    Publication date: May 11, 2023
    Inventors: Robert BALDEMAIR, Mehrnaz AFSHANG, Rikke APELFROJD, Jung-Fu CHENG, Ning HE, Dennis HUI, Stefan PARKVALL
  • Patent number: 11637726
    Abstract: There is disclosed a method of operating a receiving radio node in a wireless communication network. The method includes receiving first signaling, the first signaling covering at least one allocation unit carrying Demodulation Reference Signaling, DMRS. Receiving includes performing Inter Carrier Interference, ICI, suppression for the at least one allocation unit carrying DMRS based on received DMRS. The disclosure also pertains to related devices and methods.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: April 25, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Jung-Fu Cheng, Mehrnaz Afshang, Yuhang Liu, Stephen Grant
  • Patent number: 11569960
    Abstract: There is disclosed a method of operating a transmitting node in a millimeter-wave communication network. The method includes transmitting communication signaling in a transmission timing structure, the communication signaling including leading reference signaling in a leading time interval at the beginning of the transmission timing structure and including trailing reference signaling in a trailing time interval at the end of the timing structure. The leading reference signaling starts with a first reference signaling time-domain sequence, and the trailing reference signaling ending with the first reference time-domain signaling sequence. The disclosure also pertains to related devices and methods.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: January 31, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Robert Baldemair, Mehrnaz Afshang, Rikke Apelfrojd, Jung-Fu Cheng, Ning He, Dennis Hui, Stefan Parkvall
  • Publication number: 20220311571
    Abstract: There is disclosed a method of operating a receiving radio node in a wireless communication network. The method includes receiving first signaling and second signaling, the first signaling including first Phase Tracking Reference Signaling, PT-RS, on a first set of subcarriers, and the second signaling including second PT-RS on a second set of subcarriers, the first set of subcarriers being non-overlapping with the second set of subcarriers. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: March 25, 2021
    Publication date: September 29, 2022
    Inventors: Jung-Fu CHENG, Stephen GRANT, Mehrnaz AFSHANG, Yuhang LIU
  • Publication number: 20220311647
    Abstract: There is disclosed a method of operating a receiving radio node in a wireless communication network. The method includes receiving first signaling and second signaling, wherein the first signaling includes first Phase Tracking Reference Signaling, PT-RS, on a first set of subcarriers, and the second signaling includes second PT-RS on a second set of subcarriers, wherein the first set of subcarriers is non-overlapping with the second set of subcarriers, wherein receiving the first signaling is based on estimating a phase noise for the first signaling based on the first PT-RS and the second PT-RS. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: March 25, 2021
    Publication date: September 29, 2022
    Inventors: Jung-Fu CHENG, Mehrnaz AFSHANG, Yuhang LIU, Stephen GRANT
  • Publication number: 20220311648
    Abstract: There is disclosed a method of operating a receiving radio node in a wireless communication network. The method includes receiving first signaling, the first signaling covering at least one allocation unit carrying Demodulation Reference Signaling, DMRS. Receiving includes performing Inter Carrier Interference, ICI, suppression for the at least one allocation unit carrying DMRS based on received DMRS. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: March 25, 2021
    Publication date: September 29, 2022
    Inventors: Jung-Fu CHENG, Mehrnaz AFSHANG, Yuhang LIU, Stephen GRANT
  • Patent number: 11438198
    Abstract: There is disclosed a method of operating a radio node in a wireless communication network. The method includes communicating utilising signaling, wherein communicating utilising signaling is based on performing pulse-shaping pertaining to the signaling, wherein pulse-shaping is based on a pulse-shaping indication. The disclosure also pertains to related devices and methods.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: September 6, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Robert Baldemair, Mehrnaz Afshang, Jung-Fu Cheng, Ning He, Dennis Hui, Stefan Parkvall
  • Patent number: 11418305
    Abstract: There is disclosed a method of operating a transmitting node in a millimeter-wave communication network. The method comprises transmitting communication signaling in a transmission timing structure, the communication signaling comprising control signaling and data signaling, the communication signaling further comprising reference signaling common to the control signaling and data signaling. The disclosure also pertains to related devices and methods.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: August 16, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Robert Baldemair, Mehrnaz Afshang, Rikke Apelfrojd, Jung-Fu Cheng, Ning He, Dennis Hui, Stefan Parkvall
  • Publication number: 20220190998
    Abstract: According to some embodiments, a method performed by a network node for communicating using time division duplexing (TDD) on a first radio access technology (RAT) carrier located within a frequency band of a second RAT comprises transmitting a first communication on the first RAT carrier to a first wireless device. A carrier center frequency of the first RAT carrier aligns with a middle of a resource block (RB) of the second RAT. In particular embodiments, the location of the center carrier frequency of the first RAT satisfies raster requirements of the first RAT.
    Type: Application
    Filed: March 27, 2020
    Publication date: June 16, 2022
    Inventors: Mohammad Mozaffari, Yi-Pin Eric Wang, Mehrnaz Afshang, Dominique Everaere
  • Patent number: 11349621
    Abstract: There is disclosed a method of operating a transmitting node in a millimeter-wave communication network. The method includes transmitting communication signaling in a transmission timing structure, the communication signaling including control signaling and data signaling, the communication signaling further comprising reference signaling common to the control signaling and data signaling. The disclosure also pertains to related devices and methods.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: May 31, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Robert Baldemair, Mehrnaz Afshang, Rikke Apelfrojd, Jung-Fu Cheng, Ning He, Dennis Hui, Stefan Parkvall
  • Publication number: 20220158883
    Abstract: There is disclosed a method of operating a radio node in a wireless communication network, the method including communicating based on a signaling structure, the signaling structure including a number R of long symbols and/or a number Nsym of regular symbols, wherein R and/or Nsym is based on the subcarrier spacing associated to the signaling structure and/or a cyclic prefix length of a long symbol and/or a cyclic prefix length of a regular symbol. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: November 19, 2020
    Publication date: May 19, 2022
    Inventors: Mehrnaz AFSHANG, Mohammad MOZAFFARI, Jung-Fu CHENG, Dennis HUI
  • Publication number: 20220116166
    Abstract: There is disclosed a method of operating a transmitting radio node in a wireless communication network, the method including transmitting reference signaling based on a reference pilot sequence, the reference pilot sequence being one of a set of reference pilot sequences, at least one reference pilot sequence of the set being a subsequence of another reference pilot sequence of the set. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: October 9, 2020
    Publication date: April 14, 2022
    Inventors: Dennis HUI, Jung-Fu CHENG, Mehrnaz AFSHANG
  • Publication number: 20220116922
    Abstract: There is disclosed a method of operating a transmitting radio node in a wireless communication network. The method includes transmitting first control signaling in a control region, the first control signaling having at least a first signaling characteristic from a set of signaling characteristics in which the signaling characteristics of the set of signaling characteristics are associated to the control region. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: October 9, 2020
    Publication date: April 14, 2022
    Inventors: Jung-Fu CHENG, Dennis HUI, Mehrnaz AFSHANG
  • Publication number: 20220110120
    Abstract: A wireless device (14, 400) or a radio network node (12, 700) is configured to communicate in a wireless communication network (10). The wireless device (14, 400) or radio node in this regard transmits or receives a signal on an Narrowband Internet-of-Things, NB-IoT, carrier (16). The NB-IoT carrier (16) is within a bandwidth of a New Radio, NR, carrier (22), has a frequency center (24) whose position satisfies a requirement on that position relative to a channel raster (26), and has two or more subcarriers which each align in frequency with a respective subcarrier of the NR carrier (22).
    Type: Application
    Filed: October 30, 2019
    Publication date: April 7, 2022
    Inventors: Mohammad MOZAFFARI, Mehrnaz AFSHANG, Yi-Pin Eric WANG
  • Publication number: 20220103410
    Abstract: A network device transmits or receives using an LTE-M carrier with guard bands within the bandwidth of an NR carrier, wherein the subcarriers in the LTE-M carrier maximally align with subcarriers in NR. The center of the LTE-M carrier is located within the NR bandwidth such that: 1) a minimum number of NR resource blocks are occupied by any part of the LTE-M carrier and the guard bands at each end, given a predetermined bandwidth for each of the guard bands; and/or 2) given a predetermined number of NR resource blocks that can be occupied by any part of the LTE-M carrier and the guard bands at each end, a minimum guard band bandwidth from each end of the LTE-M carrier to the respective immediately adjacent NR resource block not occupied by any of part of the LTE-M carrier and the guard bands is maximized.
    Type: Application
    Filed: February 4, 2020
    Publication date: March 31, 2022
    Inventors: Mohammad Mozaffari, Mehrnaz Afshang, Yi-Pin Eric Wang, Johan Bergman
  • Publication number: 20210328839
    Abstract: There is disclosed a method of operating a radio node in a wireless communication network. The method includes communicating utilising signaling, wherein communicating utilising signaling is based on performing pulse-shaping pertaining to the signaling. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: June 30, 2021
    Publication date: October 21, 2021
    Inventors: Jung-Fu CHENG, Mehrnaz AFSHANG, Ning HE, Dennis HUI
  • Patent number: 11115248
    Abstract: There is disclosed a method of operating a radio node in a wireless communication network. The method includes communicating utilising signaling, wherein communicating utilising signaling is based on performing pulse-shaping pertaining to the signaling. The disclosure also pertains to related devices and methods.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: September 7, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Jung-Fu Cheng, Mehrnaz Afshang, Ning He, Dennis Hui