Patents by Inventor Seyed Ali Akbar FAKOORIAN

Seyed Ali Akbar FAKOORIAN 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: 20200267756
    Abstract: This disclosure provides methods, devices, and systems for physical uplink shared channel (PUSCH) repetition based on support signaling, such as an uplink grant that includes a time domain resource assignment for transmitting one or more data repetitions that may cross a slot boundary. The UE may identify directions (for example, uplink, downlink, flexible) for one or more symbols spanning a transmission duration of the time domain resource assignment. The directions may be determined using a dynamic slot format indication (SFI), or semi-static SFIs may be used as a fallback (when dynamic slot format indications do not meet a target reliability). The uplink grant may include an indication of which symbol directions can be used for the one or more data repetitions. A subset of the one or more symbols for scheduling the one or more data repetitions may be determined based on the identified directions.
    Type: Application
    Filed: February 13, 2020
    Publication date: August 20, 2020
    Inventors: Seyed Ali Akbar Fakoorian, Seyedkianoush Hosseini, Wanshi Chen, Peter Gaal, Jing Jiang, Krishna Kiran Mukkavilli
  • Publication number: 20200267745
    Abstract: Methods, systems, and devices for wireless communications are described. A User equipment (UE) may identify a set of semi-persistent scheduled resources configured for uplink transmissions by the UE. The UE may receive, from a base station, a resource grid that indicates scheduled uplink communications for one or more other UEs. The UE may determine a set of uplink resources for the UE based on the set of semi-persistent scheduled resources and the resource grid. The UE may then transmit an uplink message to the base station via the set of uplink resources. In some cases, the UE may identify resources for the scheduled uplink communications based on the resource grid and determine a set of conditional resources available for the UE based on the resources for the scheduled uplink communications, where the set of uplink resources includes at least a portion of the set of conditional resources.
    Type: Application
    Filed: February 13, 2020
    Publication date: August 20, 2020
    Inventors: Aleksandar Damnjanovic, Xiaoxia Zhang, Junyi Li, Seyed Ali Akbar Fakoorian
  • Patent number: 10750484
    Abstract: Wireless communications systems and methods related to multiplexing uplink control channel signals from different users are provided. A first wireless communication device obtains an uplink control channel multiplex configuration indicating a first frequency spreading sequence and at least one of a second frequency spreading sequence or a first spatial direction. The first wireless communication device communicates, with a second wireless communication device, a first uplink control channel signal including a first reference signal and a first uplink control information signal in a frequency spectrum based on the uplink control channel multiplex configuration. The first reference signal is based on the first frequency spreading sequence and the first uplink control information signal is based on at least one of the second frequency spreading sequence or the first spatial direction.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: August 18, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Xiaoxia Zhang, Seyed Ali Akbar Fakoorian, Zhifei Fan, Jing Sun
  • Patent number: 10736113
    Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) and a base station may establish narrowband communications. The base station may configure positioning reference signal (PRS) resources based at least in part on wideband or narrowband transmissions, and a UE may receive the PRS transmissions over one or more narrowband regions. The UE, may determine PRS resources and receive portions of wideband PRS transmissions that are transmitted in one or more narrowband regions of the system bandwidth. The base station may configure PRS resources separately for narrowband devices, such as according to a bandwidth of the narrowband devices or with a single PRS tone per symbol compared to two PRS tones per symbol that may be used for wideband PRS transmissions. The base station may perform positioning measurements for a UE based at least in part on timing of uplink transmissions from the UE.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: August 4, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Renqiu Wang, Hao Xu, Wanshi Chen, Xiao feng Wang, Peter Gaal, Juan Montojo, Alberto Rico Alvarino, Jing Lei, Seyed Ali Akbar Fakoorian
  • Patent number: 10735121
    Abstract: Unified spatial operations for dynamic medium sharing is disclosed in which a non-priority transmitter detects a priority reservation reference signal (RRS) over a shared spectrum from a high-priority transmitter The shared spectrum is shared by the non-priority transmitter with at least one high-priority communication pair. The high-priority communication pair includes a high-priority transmitter and the high-priority receiver. After detecting the RRS, the non-priority transmitter generates a non-priority channel estimate for a first channel between the non-priority transmitter and a non-priority receiver and a priority channel estimate for a second channel between the non-priority transmitter and the priority receiver.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: August 4, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Seyed Ali Akbar Fakoorian, Xiaoxia Zhang, Taesang Yoo
  • Patent number: 10728914
    Abstract: Certain aspects of the present disclosure generally relate to wireless communications, and more specifically to determining uplink narrowband regions based on downlink resources. An example method generally includes identifying one or more uplink narrowband regions within a wider system bandwidth, based on downlink resources, and communicating using at least one of the identified narrowbands.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: July 28, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Seyed Ali Akbar Fakoorian, Alberto Rico Alvarino, Wanshi Chen, Michael Mao Wang, Hao Xu
  • Publication number: 20200229211
    Abstract: In an aspect, a UE determines whether there is an overlap between a first uplink transmission channel allocated for transmission of a first uplink transmission and a second uplink transmission channel allocated for transmission of second uplink transmission. The UE generates a combined uplink transmission payload in response to a determination that there is the overlap, wherein the combined uplink transmission payload includes at least a portion of the first uplink transmission and at least a portion of the second uplink transmission. The UE transmits the combined uplink transmission payload on either the first uplink transmission channel or the second uplink transmission channel. A base station receives the combined uplink transmission payload transmitted by the UE.
    Type: Application
    Filed: January 10, 2020
    Publication date: July 16, 2020
    Inventors: Seyedkianoush HOSSEINI, Wei YANG, Amir AMINZADEH GOHARI, Peter GAAL, Wanshi CHEN, Yi HUANG, Xiao Feng WANG, Seyed Ali Akbar FAKOORIAN
  • Patent number: 10716084
    Abstract: Certain aspects of the present disclosure generally relate to downlink (DL) based and uplink (UL) based positioning reference signal (PRS) techniques that may help facilitate positioning procedures in systems deploying narrowband devices, such as narrowband Internet of Things (NB-IoT) devices. An exemplary method that may be performed by a node includes monitoring for positioning reference signals (PRS) transmitted from one or more base stations within a narrowband region of a wider system bandwidth, wherein tones of the PRS are repeated across at least one of multiple symbols within a same subframe, or multiple consecutive subframes, and estimating timing from the one or more base stations based on the PRS.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: July 14, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Renqiu Wang, Hao Xu, Wanshi Chen, Xiao Feng Wang, Peter Gaal, Alberto Rico Alvarino, Juan Montojo, Jing Lei, Seyed Ali Akbar Fakoorian
  • Publication number: 20200221391
    Abstract: Apparatus, methods, and computer-readable media for applying different power control commands for particular transmissions on a same channel are disclosed. An example method of wireless communication at a User Equipment includes determining a first transmission power for a first transmission using first transmission power control parameters, and transmitting the first transmission using the first transmission power. The example method also includes determining a second transmission power for a re-transmission using second transmission power control parameters. The example method further includes transmitting the re-transmission using the second transmission power.
    Type: Application
    Filed: January 3, 2020
    Publication date: July 9, 2020
    Inventors: Aleksandar DAMNJANOVIC, Xiaoxia ZHANG, Jing SUN, Seyed Ali Akbar FAKOORIAN
  • Publication number: 20200221478
    Abstract: Systems and methods for scheduling uplink transmissions are disclosed. In an aspect, a user equipment (UE) receives a downlink control information signal, wherein the downlink control information indicates an uplink grant for multiple contiguous nominal uplink repetitions, identifies resources allocated for the multiple contiguous nominal uplink repetitions based on the uplink grant, wherein the identified resources include first resources for a first actual repetition of uplink data and second resources for a second actual repetition of uplink data, transmits the first actual repetition of uplink data using the first resources, and transmits the second actual repetition of the uplink data using the second resources.
    Type: Application
    Filed: January 8, 2020
    Publication date: July 9, 2020
    Inventors: Seyed Ali Akbar FAKOORIAN, Seyedkianoush HOSSEINI, Wanshi CHEN, Jing JIANG
  • Publication number: 20200221431
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment may be configured to monitor a first set of decoding candidates within a first search space for receiving a physical downlink control channel message. A base station may identify downlink data for the user equipment and may transmit a signal to the user equipment. The user equipment may receive the signal within the first search space. In some cases, the signal may include a command for activating a second search space. The user equipment may monitor a second set of decoding candidates within the second search space based on receiving the signal. The user equipment communicate, with the base station, based on monitoring the first set of decoding candidates within the first search space and the second set of decoding candidates within the second search space.
    Type: Application
    Filed: January 3, 2020
    Publication date: July 9, 2020
    Inventors: Seyedkianoush Hosseini, Jing Jiang, Wanshi Chen, Jing Sun, Mostafa Khoshnevisan, Wei Yang, Seyed Ali Akbar Fakoorian, Xiaoxia Zhang
  • Publication number: 20200214040
    Abstract: Methods, systems, and devices for wireless communication are described. A first wireless device may receive a clear to send signal based precoded based at least in part on a receive filter at a second wireless device. The first wireless device may calculate a transmit precoder based at least in part on the clear to send signal. For example, the first wireless device may calculate a whitening filter and a second filter based at least in part on the clear to send signal. The first wireless device may transmit a request to send signal precoded by the transmit precoder to initiate communications with a third wireless device without significantly interfering with ongoing communications at the second wireless device.
    Type: Application
    Filed: March 6, 2020
    Publication date: July 2, 2020
    Inventors: Zhifei Fan, Taesang Yoo, Xiaoxia Zhang, Seyed Ali Akbar Fakoorian
  • Publication number: 20200196317
    Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may transmit a precoded reference signal to prevent interference with an incoming signal from a base station. The UE may determine a precoder for the reference signal based at least in part on a whitening matrix. In some examples, the UE may determine the precoder based at least in part on the whitening matrix and an effective channel between the base station and the UE. The precoded reference signal may be used by devices in other wireless communications systems to avoid interfering with a signal being received by the UE. In some examples, the UE may alternatively or additionally transmit an indication of the number of additional layers of the link between the UE and the base station that may be nulled out for a second link.
    Type: Application
    Filed: February 20, 2020
    Publication date: June 18, 2020
    Inventors: Seyed Ali Akbar Fakoorian, Xiaoxia Zhang, Taesang Yoo, Zhifei Fan
  • Patent number: 10680682
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine, based at least in part on a set of channel state information reference signals (CSI-RSs), a plurality of hypotheses associated with a plurality of transmission/reception points (TRPs), wherein the UE is configured to receive non-coherent transmissions across the plurality of TRPs according to at least one of a transparent transmit diversity scheme, a non-transparent transmit diversity scheme, or a closed-loop block diagonal precoder scheme, and wherein a coherent precoder is configured within each of the plurality of TRPs. In some aspects, the UE may determine, based at least in part on the plurality of hypotheses, channel state information (CSI) feedback associated with the plurality of TRPs. Numerous other aspects are provided.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: June 9, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Seyed Ali Akbar Fakoorian, Xiaoxia Zhang, Srinivas Yerramalli, Arumugam Chendamarai Kannan, Jing Sun
  • Publication number: 20200177323
    Abstract: Methods, systems, and devices for wireless communications are described that provide for unambiguous mapping between downlink control channel transmissions, downlink shared channel transmissions, and uplink acknowledgment feedback resources. The uplink acknowledgment feedback resource may be located within a same transmission time interval (TTI). A base station may configure codebook-based acknowledgment resources from a user equipment (UE), and feedback delay values may be associated with time domain resources of the downlink shared channel transmissions. In some examples, feedback delay values may be associated with particular search spaces or monitoring occasions of the downlink control channel transmissions that include resource allocations for the downlink shared channel transmissions. A UE using codebook-based acknowledgment feedback resources may thus unambiguously identify uplink resources that are to be used for transmitting the uplink acknowledgment feedback.
    Type: Application
    Filed: November 27, 2019
    Publication date: June 4, 2020
    Inventors: Seyed Ali Akbar Fakoorian, Seyedkianoush Hosseini, Xiaoxia Zhang, Jing Jiang, Wei Yang
  • Publication number: 20200169962
    Abstract: Methods, systems, and devices for wireless communications are described which may enable a user equipment (UE) and a base station to use outer-loop feedback support to reach a desired error rate for low latency communications. For example, a base station may transmit a proxy acknowledgement feedback configuration to a UE for communications associated with a low target error rate. In some cases, after receiving the communications from the base station, the UE may receive secondary communications from the base station. The UE may then decode the first and/or second communications according to the proxy acknowledgement feedback configuration and/or a normal acknowledgement feedback configuration and may determine a proxy acknowledgement feedback based on the decoding. Further, the UE may transmit the proxy and/or normal acknowledgement feedback to the base station, which may update outer-loop power settings for the low latency communications based on the acknowledgement feedback.
    Type: Application
    Filed: November 25, 2019
    Publication date: May 28, 2020
    Inventors: Seyed Ali Akbar Fakoorian, Jing Sun, Jing Jiang, Xiaoxia Zhang, Tingfang Ji
  • Publication number: 20200154438
    Abstract: Aspects of the present disclosure provide techniques for wireless communications by a base station.
    Type: Application
    Filed: January 21, 2020
    Publication date: May 14, 2020
    Inventors: Alberto RICO ALVARINO, Seyed Ali Akbar FAKOORIAN, Hao XU
  • Publication number: 20200137803
    Abstract: Methods, systems, and devices for wireless communications are described. The method includes identifying that the user equipment (UE) is to use a two-step random access channel (RACH) procedure that includes a first message (e.g., uplink request message) and a second message (e.g., downlink response). The methods include sending, as a first message of the two-step RACH procedure, the uplink request message to a base station, receiving, from the base station, a physical downlink control channel comprising an indication of resources of a broadcast or multicast physical downlink shared channel on which the downlink response is to be received, and receiving the downlink response from the base station on the broadcast or multicast physical downlink shared channel. The physical downlink shared channel may be configured to provide downlink responses for one or multiple UEs.
    Type: Application
    Filed: October 23, 2019
    Publication date: April 30, 2020
    Inventors: Seyed Ali Akbar Fakoorian, Xiaoxia Zhang, Jing Sun, Aleksandar Damnjanovic, Srinivas Yerramalli, Ozcan Ozturk
  • Publication number: 20200136762
    Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for increasing the chances that a high reliability packet scheduled to be transmitted in a shared radio frequency spectrum is received by a receiving device. In one example, a wireless device (e.g., a base station or a user equipment (UE)) may duplicate a packet at a packet data convergence protocol (PDCP) layer for transmission on multiple listen before talk (LBT) subchannels of a carrier to improve reliability. In another example, a wireless device may duplicate a packet at a physical (PHY) layer for transmission on multiple LBT subchannels of a carrier to improve reliability, or the wireless device may encode and map the packet to multiple LBT subchannels of a carrier for transmission on the multiple LBT subchannels to improve reliability.
    Type: Application
    Filed: October 24, 2019
    Publication date: April 30, 2020
    Inventors: Srinivas Yerramalli, Xiaoxia Zhang, Seyed Ali Akbar Fakoorian
  • Publication number: 20200128583
    Abstract: Various procedures associated with autonomous uplink (AUL) are disclosed. In order to address the mismatch between listen before talk (LBT) and AUL bandwidth a fractional sensing channel is defined less than 20 MHz. Accordingly, a user equipment (UE) may use the fractional sensing channel to perform LBT only on the resources allocated for AUL. Contention window update may further be modified for transmissions spanning multiple transmission opportunities (TxOPs). A contention window update may occur over all transmission channels considering full acknowledgement information of each TxOP, a percentage of acknowledgement information weighted on the number of channels, a percentage of acknowledgement information weighted on the ratio of resources on each channel, or by selecting a primary channel of the multiple channels for the contention window update.
    Type: Application
    Filed: October 16, 2019
    Publication date: April 23, 2020
    Inventors: Srinivas Yerramalli, Xiaoxia Zhang, Jing Sun, Seyed Ali Akbar Fakoorian, Arumugam Chendamarai Kannan, Kapil Bhattad