Patents by Inventor Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL

Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL 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: 20210297212
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive information indicating a timing configuration for candidate positions of a discovery reference signal (DRS) window, wherein the DRS window is within an unlicensed millimeter wave (mmW) band, and wherein the timing configuration provides for repetition of a synchronization signal block (SSB) within the DRS window based at least in part on a wraparound scheme; and scan for the SSB in accordance with the timing configuration. Numerous other aspects are provided.
    Type: Application
    Filed: September 4, 2020
    Publication date: September 23, 2021
    Inventors: Xiaoxia ZHANG, Jing SUN, Zhifei FAN, Srinivas YERRAMALLI, Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL, Wooseok NAM, Juan MONTOJO, Tao LUO
  • Publication number: 20210298020
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a physical downlink control channel (PDCCH) communication in a first dynamic control resource set (CORESET) configured in a first bandwidth part (BWP). The PDCCH communication may indicate a BWP switch from the first BWP to a second BWP. The UE may determine, based at least in part on the BWP switch, whether to monitor one or more second dynamic CORESETs, subsequent to the first dynamic CORESET, that were configured in the first BWP. The UE may selectively monitor the one or more second dynamic CORESETs based at least in part on determining whether to monitor the one or more second dynamic CORESETs. Numerous other aspects are provided.
    Type: Application
    Filed: February 3, 2021
    Publication date: September 23, 2021
    Inventors: Iyab Issam SAKHNINI, Qiang WU, Jun MA, Mehmet Izzet GURELLI, Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL
  • Publication number: 20210289559
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a physical random access channel (PRACH) preamble configuration that indicates a first preamble format for a first PRACH preamble and a second preamble format for a second PRACH preamble, wherein the first preamble format is different from the second preamble format. The UE may transmit the first PRACH preamble as part of a random access procedure based at least in part on the PRACH preamble configuration, wherein transmitting the first PRACH preamble enables a determination of a symbol boundary offset. The UE may transmit the second PRACH preamble as part of the random access procedure based at least in part on the PRACH preamble configuration, wherein transmitting the second PRACH preamble enables a determination of a symbol timing offset. Numerous other aspects are described.
    Type: Application
    Filed: March 8, 2021
    Publication date: September 16, 2021
    Inventors: Iyab Issam SAKHNINI, Xiaoxia ZHANG, Jing SUN, Tao LUO, Zhifei FAN, Arumugam CHENDAMARAI KANNAN, Juan MONTOJO, Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL, Qiang WU, Jun MA, Mehmet Izzet GURELLI
  • Publication number: 20210266823
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine an operating mode associated with synchronization signal block (SSB) transmission in a band, wherein the operating mode is one of a licensed operating mode or an unlicensed operating mode; and receive one or more SSBs based at least in part on the operating mode. Numerous other aspects are described.
    Type: Application
    Filed: January 22, 2021
    Publication date: August 26, 2021
    Inventors: Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL, Xiaoxia ZHANG, Jing SUN, Srinivas YERRAMALLI, Zhifei FAN, Wooseok NAM, Tao LUO, Juan MONTOJO
  • Publication number: 20210266979
    Abstract: Wireless communications systems and methods related to random access signaling are provided. A user equipment (UE) may transmit to a base station (BS) in a frequency band, a random access signal including at least one of a length in time or a length in frequency that is based on a subcarrier spacing (SCS) in the frequency band. The BS may receive the random access signal and transmit a response to the random access signal.
    Type: Application
    Filed: February 22, 2021
    Publication date: August 26, 2021
    Inventors: Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL, Xiaoxia ZHANG, Jing SUN, Srinivas YERRAMALLI, Zhifei FAN, Wooseok NAM, Tao LUO, Juan MONTOJO
  • Publication number: 20210258900
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station (BS) may transmit a first set of synchronization signal block (SSB) burst sets with a first set of SSB parameters; and transmit a second set of SSB burst sets with a second set of SSB parameters, wherein the first set of SSB burst sets and the second set of SSB burst sets are transmitted in a common carrier. In some aspects, a user equipment (UE) may receive at least one SSB of the first set of SSB burst sets or the second set of SSB burst sets. Numerous other aspects are provided.
    Type: Application
    Filed: February 16, 2021
    Publication date: August 19, 2021
    Inventors: Sungwoo PARK, Wooseok Nam, Tao Luo, Jing Sun, Xiaoxia Zhang, Zhifei Fan, Arumugam Chendamarai Kannan, Ahmed Abdelaziz Ibrahim Abdelaziz Zewail
  • Publication number: 20210258896
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may detect a synchronization signal block (SSB) within a discovery reference signal (DRS) transmission window that includes more than 64 candidate SSB positions, determine an index value of the SSB based at least in part on an indexing scheme for SSBs that are included in the DRS transmission window, wherein the indexing scheme includes one of a consecutive indexing scheme or a non-consecutive indexing scheme; and determine a cell timing based at least in part on the index value. Numerous other aspects are described.
    Type: Application
    Filed: January 20, 2021
    Publication date: August 19, 2021
    Inventors: Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL, Xiaoxia ZHANG, Jing SUN, Srinivas YERRAMALLI, Zhifei FAN, Wooseok NAM, Tao LUO, Juan MONTOJO
  • Publication number: 20210243789
    Abstract: In an aspect, a PDCCH and a PDSCH are transmitted by a BS to a UE, whereby the PDDCH includes a first DCI part and the PDSCH includes a second DCI part. In an example, a TBS associated with the PDSCH may be determined (e.g., either by factoring or ignoring resource elements associated with the second DCI part). In another example, the PDSCH may be associated with a modulation scheme with a constellation having constellation points, whereby the second DCI part in the PDSCH is restricted to a subset of the constellation points. In another example, rate-matching may be performed for one or more resource elements of the second DCI part.
    Type: Application
    Filed: January 27, 2021
    Publication date: August 5, 2021
    Inventors: Zhifei FAN, Jing SUN, Xiaoxia ZHANG, Tao LUO, Srinivas YERRAMALLI, Arumugam CHENDAMARAI KANNAN, Wooseok NAM, Sungwoo PARK, Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL, Akula Aneesh REDDY
  • Publication number: 20210243735
    Abstract: In an aspect, a PDCCH and a PDSCH are transmitted by a BS to a UE, whereby the PDCCH includes a first DCI part and the PDSCH includes a second DCI part (e.g., a 2-part DCI). In an example, the BS and UE each determine at least one timing value associated with an effective receive time for the PDCCH based upon a reference symbol of the PDSCH.
    Type: Application
    Filed: January 27, 2021
    Publication date: August 5, 2021
    Inventors: Zhifei FAN, Jing SUN, Xiaoxia ZHANG, Tao LUO, Srinivas YERRAMALLI, Arumugam CHENDAMARAI KANNAN, Wooseok NAM, Sungwoo PARK, Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL, Akula Aneesh REDDY
  • Publication number: 20210243745
    Abstract: In an aspect, a PDCCH and a PDSCH are transmitted by a BS to a UE, whereby the PDCCH includes a first DCI part and the PDSCH includes a second DCI part (e.g., a 2-part DCI). In an example a first grant associated with the second DCI part is offset relative to a slot position of the second DCI part, whereas a second grant associated with the second DCI part is offset relative to the slot position to which the first grant is offset. In another aspect, two or more grants are grouped together, with the respective group being mapped to a PUCCH.
    Type: Application
    Filed: January 27, 2021
    Publication date: August 5, 2021
    Inventors: Zhifei FAN, Jing SUN, Xiaoxia ZHANG, Tao LUO, Srinivas YERRAMALLI, Arumugam CHENDAMARAI KANNAN, Wooseok NAM, Sungwoo PARK, Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL, Akula Aneesh REDDY
  • Publication number: 20210226833
    Abstract: Aspects of the disclosure relate to wireless communication networks having a capability of controlling the mapping of reference signals onto a carrier based on one or more Doppler parameters. A demodulation reference signal (DMRS) is mapped to a carrier according to a pattern based on one or more Doppler parameters, such as a Doppler frequency and/or a rate of change of channel conditions. In a further example, if an initial transmission of an information packet fails due to a high Doppler scenario, the probability of success of the retransmission may be improved by altering the DMRS configuration to account for the high Doppler scenario. Other aspects, examples, and features are also claimed and described.
    Type: Application
    Filed: January 15, 2021
    Publication date: July 22, 2021
    Inventors: Sungwoo PARK, Wooseok NAM, Tao LUO, Jing SUN, Xiaoxia ZHANG, Zhifei FAN, Arumugam CHENDAMARAI KANNAN, Akula REDDY, Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL
  • Publication number: 20210184746
    Abstract: A method of wireless communication, the method including: communicating, by a first wireless communication device with a second wireless communication device, communication signals using a first beam; detecting a failure of the first beam; in response to the failure of the first beam, determining that the first beam is associated with a first beam recovery group of a plurality of beam recovery groups; transmitting a beam failure recovery signal to the second wireless communication device based on determining that the first beam is associated with the first beam recovery group; and communicating, by the first wireless communication device with the second wireless communication device, the communication signals at least in part using a second beam.
    Type: Application
    Filed: October 15, 2020
    Publication date: June 17, 2021
    Inventors: Sungwoo PARK, Tao LUO, Arumugam CHENDAMARAI KANNAN, Xiaoxia ZHANG, Wooseok NAM, Srinivas YERRAMALLI, Zhifei FAN, Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL, Akula REDDY, Jing SUN
  • Publication number: 20210184798
    Abstract: Certain aspects of the present disclosure provide techniques for communication of downlink control information (DCI) piggybacked on a physical downlink shared channel (PDSCH) configured using semi persistent scheduling (SPS). A method that may be performed by a user equipment (UE) includes receiving a message having a configuration for semi persistent scheduling (SPS) of data channels, receiving an indication associated with at least one first downlink control information (DCI) for transmission in at least one of the data channels, and monitoring for the data channels in accordance with the configuration for SPS.
    Type: Application
    Filed: December 8, 2020
    Publication date: June 17, 2021
    Inventors: Sungwoo PARK, Wooseok NAM, Xiaoxia ZHANG, Tao LUO, Srinivas YERRAMALLI, Arumugam CHENDAMARAI KANNAN, Zhifei FAN, Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL, Akula REDDY, Jing SUN
  • Publication number: 20210160036
    Abstract: A wireless communication system utilizes a synchronization signal block (SSB) structure to enable beam switching at higher sub carrier spacing (SCS) or uplink transmissions within an SSB. The SSB structure has a first SCS for an SSB transmission and a second SCS for a data transmission. The SSB structure is based on the first SCS and the second SCS, with the SSB structure including at least one gap between SSB symbols or between SSBs. The wireless communication system transmits or receives an SSB based on the SSB structure. A base station may transmit a downlink signal during the gap, for example, where the second SCS is much greater than the first SCS. A user equipment may transmit an uplink signal such as an acknowledgment during the at least one gap. The user equipment or the base station may perform analog beam switching during the at least one gap between SSBs.
    Type: Application
    Filed: November 18, 2020
    Publication date: May 27, 2021
    Inventors: Akula REDDY, Jing SUN, Tao LUO, Xiaoxia ZHANG, Srinivas YERRAMALLI, Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL, Zhifei FAN, Sungwoo PARK, Wooseok NAM
  • Publication number: 20210144564
    Abstract: Some aspects described herein relate to receiving, in a configuration, a slot format indication, wherein the slot format indication includes directional information indicating spatial directions associated with communications based on the slot format, determining, for a slot indicated by the slot format indication and based on the directional information, the spatial direction, and communicating, within the slot and based on the spatial direction, with one or more nodes.
    Type: Application
    Filed: November 4, 2020
    Publication date: May 13, 2021
    Inventors: Wooseok NAM, Jing SUN, Tao LUO, Xiaoxia ZHANG, Sungwoo PARK, Akula REDDY, Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL, Zhifei FAN, Srinivas YERRAMALLI
  • Publication number: 20210135918
    Abstract: Methods, systems, and devices for wireless communications are described. A wireless device may identify, for an initial slot of a periodic interval, a number of symbols included in the initial slot and a length of cyclic prefixes used for the symbols included in the initial slot based on a subcarrier spacing that is configured for wireless communication. The length of a first set of cyclic prefixes may be based on a length of a cyclic prefix calculated for an initial symbol of the initial slot at the configured subcarrier spacing. The wireless device may perform communications based on the determined number of symbols and length of cyclic prefixes included in the initial slot. Performing communications may include allocating resources based on a length of the cyclic prefixes used for the symbols included in the initial slot.
    Type: Application
    Filed: October 28, 2020
    Publication date: May 6, 2021
    Inventors: Ahmed Abdelaziz Ibrahim Abdelaziz Zewail, Jing Sun, Xiaoxia Zhang, Tao Luo, Srinivas Yerramalli, Zhifei Fan, Wooseok Nam, Sungwoo Park, Akula Reddy
  • Publication number: 20210136734
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station (B S), an indication of a plurality of sets of slot format indicator parameters. The UE may receive, from the B S, a communication that identifies a set of slot format indicator parameters from the plurality of sets of slot format indicator parameters. Numerous other aspects are provided.
    Type: Application
    Filed: October 5, 2020
    Publication date: May 6, 2021
    Inventors: Wooseok NAM, Jing SUN, Tao LUO, Xiaoxia ZHANG, Zhifei FAN, Srinivas YERRAMALLI, Sungwoo PARK, Akula REDDY, Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL
  • Publication number: 20210127398
    Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for performing rate matching when resources for a physical downlink shared channel (PDSCH) overlap with resources of a control resource set (CORESET) in which a physical downlink control channel (PDCCH) that scheduled the PDSCH. As used herein, rate matching generally refers to the process of repeating or puncturing bits on a transport channel.
    Type: Application
    Filed: October 27, 2020
    Publication date: April 29, 2021
    Inventors: Wooseok NAM, Jing SUN, Xiaoxia ZHANG, Tao LUO, Zhifei FAN, Sungwoo PARK, Akula REDDY, Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL
  • Publication number: 20210119758
    Abstract: Subcarrier spacing (SCS) for data may be adapted or dynamically configured based on the occurrence or presence of a synchronization signal block (SSB) transmission. For example, during a SSB transmission, the SCS of data may be automatically switched from some default data SCS to a second SCS (e.g., the SCS of the SSB) to allow for frequency division multiplexing (FDM) of data and SSB where the data and SSB use the same numerology. As such, communicating devices (e.g., a base station and a user equipment (UE)) may identify some location or configuration for a SSB, and may determine a second subcarrier spacing (e.g., a subcarrier spacing associated with the SSB) such that the SCS of data may be adapted to the second subcarrier spacing during the FDM of the SSB and the data. The SSB and data may thus be contemporaneously transmitted or received using the second SCS.
    Type: Application
    Filed: September 14, 2020
    Publication date: April 22, 2021
    Inventors: Sungwoo Park, Jing Sun, Wooseok Nam, Tao Luo, Xiaoxia Zhang, Zhifei Fan, Akula Reddy, Ahmed Abdelaziz Ibrahim Abdelaziz Zewail, Snnivas Yerramalli
  • Publication number: 20210120579
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, in a control channel, a first grant identifying a first set of resources of a first data channel on which the UE is to monitor for one or more second grants, the first data channel being downlink. The UE may monitor the first set of resources in the first data channel for the one or more second grants, the one or more second grants identifying a second set of resources of a second data channel on which the UE is to perform data communications. The UE may transmit, based at least in part on the monitoring the first set of resources, a feedback message associated with receipt of the one or more second grants.
    Type: Application
    Filed: October 20, 2020
    Publication date: April 22, 2021
    Inventors: Sungwoo Park, Jing Sun, Tao Luo, Xiaoxia Zhang, Zhifei Fan, Wooseok Nam, Akula Reddy, Ahmed Abdelaziz Ibrahim Abdelaziz Zewail, Srinivas Yerramalli