Patents by Inventor Reza Hedayat

Reza Hedayat 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: 20230093833
    Abstract: A wireless station is allocated use of a time slot in a given direction, uplink or downlink, on a given channel. The wireless station monitors for presence of wireless energy during a portion of the time slot. Based on a detected level of the wireless energy in the time slot, the wireless station controls transmission of wireless communications in a direction opposite to the configured direction in a remaining part of the time slot.
    Type: Application
    Filed: September 29, 2021
    Publication date: March 30, 2023
    Inventors: Abdulrauf Hafeez, Amitav Mukherjee, Ahmad Reza Hedayat
  • Publication number: 20230088296
    Abstract: A multi-user uplink transmission is performed by analyzing, by a first wireless station, a spatial reuse field in a first frame, and generating, by the first wireless station, a second frame, wherein the second frame includes a spatial reuse field that is generated based on the spatial reuse field of the first frame. The first frame and the second frame are within the same transmission opportunity (TXOP) and the first frame is transmitted prior to the second frame during the TXOP.
    Type: Application
    Filed: November 28, 2022
    Publication date: March 23, 2023
    Inventors: Ahmad Reza HEDAYAT, Young Hoon KWON
  • Patent number: 11612009
    Abstract: Apparatus and methods for operating multiple link premises devices in a wireless network. In one embodiment, premises devices such as a wireless gateway, Access Point (AP) or user devices use Wireless Local Area Network (WLAN) technology for the transmission of data on multiple links operating on different frequencies. The disclosed apparatus and methods provide a solution to share channel statistic or similar data across the different links, such as for link performance improvement via more optimal MIMO operation. In one implementation, large-scale channel statistics are shared via the pre-amble or mid-amble of a frame across multiple links between an AP and a user device to enhance receiver performance. In another embodiment, the channel statistics are shared between multiple AP devices which can coordinate with each other, and/or are made specific to individual client devices, in order to enhance receiver performance.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: March 21, 2023
    Assignee: CHARTER COMMUNICATIONS OPERATING, LLC
    Inventors: Amitav Mukherjee, Ahmad Reza Hedayat
  • Publication number: 20230061275
    Abstract: A wireless transmit receive unit (WTRU) may send a grant free transmission comprising a first and a second part, each of which may be associated with a priority. The first part's priority may be higher than the second part's priority. The WTRU may select a first back of value from a first range of back off values. The WTRU may determine whether the grant free transmission was successful. If the grant free transmission was not successful, the WTRU may send a retransmission of the grant free transmission, which may include the first part and may not include the second part. The retransmission may select a second back off value from a second range of back off values, which may be a larger than the first range of back off values. The second back off value may indicate the number of grant free resource to skip prior to sending the retransmission.
    Type: Application
    Filed: November 7, 2022
    Publication date: March 2, 2023
    Applicant: IDAC Holdings, Inc.
    Inventors: Ahmad Reza Hedayat, Shahrokh Nayeb Nazar, Oghenekome Oteri
  • Publication number: 20230043655
    Abstract: An access point (AP) communicates to one or more stations (STAs) information indicating a set of channels and/or resource units (RUs), corresponding to a wideband basis service set (BSS) for an authorized unlicensed radio local area network (RLAN) using 6 GHz spectrum, which are subject to a lower power spectral density (PSD) level than other portions of the BSS frequency range or are not to be used for transmission. In some, but not necessarily all, embodiments, the AP and the STAs do not encode data on the identified channels or RUs, but do encode data on other channels and/or other RUs, which are not subject to the lower PSD constraint.
    Type: Application
    Filed: August 9, 2021
    Publication date: February 9, 2023
    Inventor: Ahmad Reza Hedayat
  • Publication number: 20230042554
    Abstract: Methods and apparatus for supporting prioritized transmission opportunity (TXOP) sharing in wireless communications systems, e.g., various 802.11 wireless communications systems, are described. A wireless station may be allocated a transmission opportunity. A shared transmission type of trigger frame is implemented, which allows the wireless station, acting as a host station, to make available transmission resources, which have been acquired by the wireless station, to one or more guest stations. A trigger based (TB) frame, corresponding to the transmitted shared transmission type trigger frame, is used by the host station and one or more guest stations to transmit data to an access point. An access point transmits priority information, e.g., in management frames, to control the use of shared resources in TB frames corresponding to shared transmission type trigger frames.
    Type: Application
    Filed: October 17, 2022
    Publication date: February 9, 2023
    Inventors: Ahmad Reza Hedayat, Amitav Mukherjee, Maulik Vaidya
  • Patent number: 11570662
    Abstract: The present invention relates to methods and apparatus for providing backhaul wireless services using a plurality of different Radio Access Technologies. An exemplary method embodiment includes the steps of: determining a set of routes for the communication of data from a first wireless base station to a destination wireless base station over wireless backhaul communications links, the first wireless base station being an Integrated Access and Backhaul donor, receiving data of a first flow at the first wireless base station for communication to a first wireless user equipment device attached to the destination wireless base station; and selecting, at the first wireless base station, one or more of the routes of the set of routes from the first wireless base station to the destination wireless base station, the selection being based on multi-Radio Access Technology (multi-RAT) capability of wireless base stations of which a route is comprised.
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: January 31, 2023
    Assignee: Charter Communications Operating, LLC
    Inventors: Amitav Mukherjee, Ahmad Reza Hedayat
  • Patent number: 11553526
    Abstract: Receiver assisted channel access may be used during a channel occupancy time (COT). A wireless transmit/receive unit (WTRU) that is a member of a first group may receive a preamble in a first time slot set, and determine a group associated with the first time slot. On a condition that the group associated with the first time slot set is the first group, the WTRU may monitor the channel for a request-to-send (RTS) signal in the first slot set. On a condition that the RTS signal is received, the WTRU may perform listen-before-talk (LBT) on the channel. On a condition that the LBT is successful, the WTRU may transmit a clear-to-send (CTS) on the channel and access the channel in the first time slot. On a condition that the LBT is unsuccessful, the WTRU may not access the channel in the first time slot set.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: January 10, 2023
    Assignee: IDAC HOLDINGS, INC.
    Inventors: Hanging Lou, Ahmad Reza Hedayat, Li-Hsiang Sun, Oghenekome Oteri, Rui Yang
  • Patent number: 11546940
    Abstract: Methods, systems, and devices for channel access and listen-before-talk approaches for new radio operation in unlicensed bands and/or licensed bands. A gNB and a wireless transmit/receive unit (WTRU) may operate in unlicensed spectrum. The gNB may perform listen-before-talk operation, and when successful, may send a downlink control channel with a slot format indication (SFI) to the WTRU. There may also be a handshaking procedure with an exchange of a request to transmit (RTT) and a request to receive (RTR). Prior to receiving the downlink channel, the WTRU may monitor search spaces at a first level, and once the downlink channel is received the WTRU may monitor search spaces at a second level. At the end of transmission, the WTRU may revert back to monitoring search spaces at the first level. In one example, the first level may be a mini-slot level and the second level may be a slot level.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: January 3, 2023
    Assignee: IDAC Holdings, Inc.
    Inventors: Ahmad Reza Hedayat, Oghenekome Oteri, Hanqing Lou, Mahmoud Taherzadeh Boroujeni, Xiaofei Wang, Rui Yang, Shahrokh Nayeb Nazar
  • Publication number: 20220408330
    Abstract: According to one configuration, while the user equipment is wirelessly connected to a first wireless base station over a first wireless communication link, a communication management resource in the user equipment receives input (such as a request) to tune-away the user equipment to a second wireless base station providing corresponding wireless services. To facilitate the temporary tune-away to the second wireless network, the communication management resource of the user equipment generates timing information associated with the switchover. In furtherance of the switchover (temporary tune-away) to the second wireless base station, the communication management resource of the user equipment transmits the timing information in a wireless communication over the first wireless communication link to the first wireless base station.
    Type: Application
    Filed: August 25, 2022
    Publication date: December 22, 2022
    Inventors: Maulik V. Vaidya, Amitav Mukherjee, Ahmad Reza Hedayat
  • Patent number: 11533137
    Abstract: A wireless transmit receive unit (WTRU) may send a grant free transmission comprising a first and a second part, each of which may be associated with a priority. The first part's priority may be higher than the second part's priority. The WTRU may select a first back of value from a first range of back off values. The WTRU may determine whether the grant free transmission was successful. If the grant free transmission was not successful, the WTRU may send a retransmission of the grant free transmission, which may include the first part and may not include the second part. The retransmission may select a second back off value from a second range of back off values, which may be a larger than the first range of back off values. The second back off value may indicate the number of grant free resource to skip prior to sending the retransmission.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: December 20, 2022
    Assignee: IDAC Holdings, Inc.
    Inventors: Ahmad Reza Hedayat, Shahrokh Nayeb Nazar, Oghenekome Oteri
  • Patent number: 11528708
    Abstract: A multi-user uplink transmission is performed by analyzing, by a first wireless station, a spatial reuse field in a first frame, and generating, by the first wireless station, a second frame, wherein the second frame includes a spatial reuse field that is generated based on the spatial reuse field of the first frame. The first frame and the second frame are within the same transmission opportunity (TXOP) and the first frame is transmitted prior to the second frame during the TXOP.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: December 13, 2022
    Assignee: ATLAS GLOBAL TECHNOLOGIES LLC
    Inventors: Ahmad Reza Hedayat, Young Hoon Kwon
  • Publication number: 20220369374
    Abstract: Methods and apparatus for adjusting a random access response window in a non-terrestrial network are provided. A method comprises receiving information that includes a gNodeB type parameter and a random access response window length parameter. The method further comprises determining that a gNodeB is a non-terrestrial gNodeB. The method further comprises determining a minimum round trip time (RTT). The method further comprises determining a time offset for a random access response window. The method further comprises determining a length of the random access response window based on the received random access response window length parameter and a non-terrestrial network based table. The method further comprises setting the random access response window based on the time offset. The method further comprises monitoring a downlink control channel on monitoring occasions within the random access response window.
    Type: Application
    Filed: May 23, 2022
    Publication date: November 17, 2022
    Applicant: IDAC HOLDINGS, INC.
    Inventors: Mahmoud Taherzadeh Boroujeni, Shahrokh Nayeb Nazar, Ahmad Reza Hedayat, Seyed Mohsen Hosseinian
  • Patent number: 11483797
    Abstract: According to one configuration, a wireless network environment includes a first wireless network and a second wireless network. A mobile communication device in the wireless network environment receives first paging notifications directed to the mobile communication device from a first wireless base station such as operated by a first wireless network service provider. The mobile communication device receives second paging notifications directed to the mobile communication device from a second wireless base station such as operated by a second wireless network service provider. The wireless network environment provides improved paging over conventional techniques.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: October 25, 2022
    Assignee: Charter Communications Operating, LLC
    Inventors: Amitav Mukherjee, Maulik V. Vaidya, Ahmad Reza Hedayat
  • Publication number: 20220338247
    Abstract: A system includes multiple techniques of implementing listen before talk functionality to provide multiple mobile communication devices connectivity with a wireless base station.
    Type: Application
    Filed: July 7, 2022
    Publication date: October 20, 2022
    Inventor: Ahmad Reza Hedayat
  • Patent number: 11477781
    Abstract: Methods and apparatus for supporting prioritized transmission opportunity (TXOP) sharing in wireless communications systems, e.g., various 802.11 wireless communications systems, are described. A wireless station may be allocated a transmission opportunity. A shared transmission type of trigger frame is implemented, which allows the wireless station, acting as a host station, to make available transmission resources, which have been acquired by the wireless station, to one or more guest stations. A trigger based (TB) frame, corresponding to the transmitted shared transmission type trigger frame, is used by the host station and one or more guest stations to transmit data to an access point. An access point transmits priority information, e.g., in management frames, to control the use of shared resources in TB frames corresponding to shared transmission type trigger frames.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: October 18, 2022
    Assignee: Charter Communications Operating, LLC
    Inventors: Ahmad Reza Hedayat, Amitav Mukherjee, Maulik Vaidya
  • Publication number: 20220330337
    Abstract: An LBT method and apparatus are disclosed for a WTRU and gNB. A method may comprise receiving a gNB beam direction schedule and an LBT measurement configuration. The WTRU may switch a receiver so as to receive a beam based on the beam direction schedule and monitor for a DCI. The WTRU may be configured to determine whether there is a transmission for the WTRU and if there is, the transmission may be received. The transmission may be a DCI for an uplink transmission of the WTRU. A WTRU may be configured to receive the gNB beam direction schedule and the LBT measurement configuration at a start of an MCOT.
    Type: Application
    Filed: June 16, 2022
    Publication date: October 13, 2022
    Inventors: Oghenekome OTERI, Ahmad Reza HEDAYAT, Hanqing LOU, Rui YANG, Janet STERN-BERKOWITZ, Moon IL LEE
  • Patent number: 11470524
    Abstract: According to one configuration, while the user equipment is wirelessly connected to a first wireless base station over a first wireless communication link, a communication management resource in the user equipment receives input (such as a request) to tune-away the user equipment to a second wireless base station providing corresponding wireless services. To facilitate the temporary tune-away to the second wireless network, the communication management resource of the user equipment generates timing information associated with the switchover. In furtherance of the switchover (temporary tune-away) to the second wireless base station, the communication management resource of the user equipment transmits the timing information in a wireless communication over the first wireless communication link to the first wireless base station.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: October 11, 2022
    Assignee: Charter Communications Operating, LLC
    Inventors: Maulik V. Vaidya, Amitav Mukherjee, Ahmad Reza Hedayat
  • Patent number: 11464044
    Abstract: A system includes multiple techniques of implementing listen before talk functionality to provide multiple mobile communication devices connectivity with a wireless base station.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: October 4, 2022
    Assignee: Charter Communications Operating, LLC
    Inventor: Ahmad Reza Hedayat
  • Publication number: 20220312428
    Abstract: A network device functions as an access point in a wireless local area network. The network device includes one or more memories and one or more processors. The one or more processors are configured to generate a physical layer protocol data unit (PPDU) that includes a plurality of aggregated media access control protocol data units (A-MPDUs), set a length subfield in a common information field of the trigger frame in a first A-MPDU to a same value as corresponding subfields in common information fields of the trigger frames in each of the other A-MPDUs of the plurality of A-MPDUs, and transmit the PPDU through a wireless medium. Each of the plurality of A-MPDUs includes a trigger frame to schedule an uplink transmission.
    Type: Application
    Filed: June 15, 2022
    Publication date: September 29, 2022
    Applicant: Atlas Global Technologies LLC
    Inventor: Ahmad Reza HEDAYAT