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: 20210352601
    Abstract: Methods, systems, and devices for wireless communications are described. Generally, a user equipment (UE) may identify an energy per resource element (EPRE) ratio between a synchronization signal block (SSB) symbol containing a primary synchronization signal (PSS) and an SSB symbol containing a secondary synchronization signal (SSS), a physical broadcast channel (PBCH), or both, based on an operating band for the UE, a bandwidth of the SSB symbol containing the PSS and the SSB symbol containing the SSB, the PBCH, or both. The EPRE ratio may be based on maximum regulatory equivalent isotropically radiated power (EIRP) limits, maximum regulatory power spectral density (PSD) limits for the band, or both. The EPRE ratios may be different for different SSB symbols, when different SSB symbols have different bandwidths. A base station may configure and transmit, and a UE may receive, the SSB according to the identified EPRE ratio.
    Type: Application
    Filed: May 5, 2021
    Publication date: November 11, 2021
    Inventors: Iyab Issam Sakhnini, Tao Luo, Qiang Wu, Xiaoxia Zhang, Jing Sun, Sungwoo Park, Jun Ma, Mehmet Izzet Gurelli, Ahmed Abdelaziz Ibrahim Abdelaziz Zewail
  • Publication number: 20210352729
    Abstract: A UE, as a part of a RACH communication procedure, may transmit a first sequence within a first set of resources having a first SCS and a second sequence within a second set of resources having a second SCS greater than the first SCS. The second sequence is transmitted with a cyclic prefix greater than inverse of the first SCS divided by a sequence length of the first sequence. The first sequence is a first PRACH preamble. The second sequence may be a second PRACH preamble, an SRS sequence, or DMRS. The UE may repeat the transmission of the first sequence for a first number of times and repeat the transmission of the second sequence for a second number of times independent of the first number.
    Type: Application
    Filed: March 29, 2021
    Publication date: November 11, 2021
    Inventors: Iyab Issam SAKHNINI, Qiang WU, Tao LUO, Xiaoxia ZHANG, Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL, Jun MA, Mehmet Izzet GURELLI, Jing SUN
  • Publication number: 20210345392
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine a number of resource elements (REs) associated with downlink control information (DCI) that is to be carried on a physical downlink shared channel (PDSCH) with a shared channel, wherein the number of REs associated with the DCI is determined based at least in part on a scaling factor and a number of REs associated with the shared channel; determine a transport block size (TBS) for the shared channel based at least in part on a remaining number of REs, of the number of REs associated with the shared channel, wherein the remaining number of REs is based at least in part on the number of REs associated with the DCI; and receive the PDSCH based at least in part on the TBS for the shared channel. Numerous other aspects are provided.
    Type: Application
    Filed: April 13, 2021
    Publication date: November 4, 2021
    Inventors: Jun MA, Qiang WU, Mehmet Izzet GURELLI, Iyab Issam SAKHNINI, Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL
  • Publication number: 20210345340
    Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for mitigating timing resolution limitations due to synchronization signal blocks (SSBs) with low subcarrier spacing (SCS). An example method by a user equipment (UE) generally includes detecting a SSB; determining a start time of a control resource set (CORESET) associated with the detected SSB, wherein the start time of the CORESET is aligned with a boundary of a symbol having a larger cyclic prefix (CP) than one or more other symbols in a same half-subframe; and monitoring the CORESET for a physical downlink control channel (PDCCH) transmission.
    Type: Application
    Filed: April 14, 2021
    Publication date: November 4, 2021
    Inventors: Jun MA, Xiaoxia ZHANG, Qiang WU, Iyab Issam SAKHNINI, Jing SUN, Mehmet Izzet GURELLI, Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL
  • Publication number: 20210345337
    Abstract: Methods, systems, and devices for wireless communications are described. For instance, a user equipment (UE) may receive, from a base station, a first downlink control information message in a downlink control channel, the first downlink control information message scheduling first resources of a downlink shared channel for a second downlink control information message. The UE may identify a first, UE-specific scrambling sequence for the second downlink control information message. The UE may receive, from the base station, the second downlink control information message based on the first scrambling sequence, the second downlink control information message scheduling second resources of the downlink shared channel for a data message. The UE may receive, from the base station, the data message in the second resources scheduled by the second downlink control information message.
    Type: Application
    Filed: April 12, 2021
    Publication date: November 4, 2021
    Inventors: Jun Ma, Xiaoxia Zhang, Jing Sun, Qiang Wu, Tao Luo, Iyab Issam Sakhnini, Mehmet Izzet Gurelli, Ahmed Abdelaziz Ibrahim Abdelaziz Zewail
  • Publication number: 20210345387
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive, from a base station, a scheduling downlink control information (DCI) communication that schedules a physical downlink shared channel (PDSCH) transmission, the scheduling DCI including an indication of a resource allocation for a DCI communication, wherein the resource allocation for the DCI communication includes one or more resources included in a resource allocation for the PDSCH transmission, and receive the PDSCH transmission that includes the DCI communication based at least in part on the indication of the resource allocation for the DCI communication. Numerous other aspects are provided.
    Type: Application
    Filed: February 24, 2021
    Publication date: November 4, 2021
    Inventors: Mehmet Izzet GURELLI, Qiang WU, Iyab Issam SAKHNINI, Jun MA, Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL
  • Publication number: 20210345341
    Abstract: Methods, systems, and devices for wireless communications are described in which control resources may be identified, and a data transmission may be rate-matched around the one or more control channels of multiple UEs or at multiple aggregation levels in the control resources. A user equipment (UE) may identify a search space for a first control channel, and the rate-matching of the data transmission may be performed based on a location of the search space in the control resources. In some cases, a base station may provide a mapping of resources (e.g., a bitmap) within the control resources that are occupied, which may be used for rate-matching.
    Type: Application
    Filed: April 27, 2021
    Publication date: November 4, 2021
    Inventors: Ahmed Abdelaziz Ibrahim Abdelaziz Zewail, Qiang Wu, Jing Sun, Xiaoxia Zhang, Tao Luo, Iyab Issam Sakhnini, Jun Ma, Mehmet Izzet Gurelli, Juan Montojo, Peter Gaal
  • Publication number: 20210337575
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine an increased bandwidth configuration for an enhanced physical uplink control channel (ePUCCH) based at least in part on an ePUCCH format of the ePUCCH, wherein the increased bandwidth configuration uses a plurality of contiguous resource blocks (RBs) for the ePUCCH; and transmit the ePUCCH using the increased bandwidth configuration. Numerous other aspects are provided.
    Type: Application
    Filed: April 22, 2021
    Publication date: October 28, 2021
    Inventors: Xiaoxia ZHANG, Zhifei FAN, Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL, Jing SUN, Juan MONTOJO, Tao LUO
  • Publication number: 20210328843
    Abstract: Orthogonal frequency-division multiplexing (OFDM) numerologies that maintain symbol boundary alignment while distributing excess cyclic prefixes (CPs) among OFDM symbols. Communication is established using a first sub-carrier spacing (SCS) and a first OFDM numerology, such as an exemplary numerology that distributes excess CP duration among a set of symbols that occupy a time interval within or equal to a corresponding time interval of a symbol of a second OFDM numerology with a second lower SCS. The first SCS may be, e.g., 960 kHz. The second SCS may be, e.g., 120 kHz. Another exemplary OFDM numerology described herein distributes the excess CP as prefix and postfix portions to one of the symbols, such as the first symbol of a set. Communication then proceeds using the first OFDM numerology at the first SCS and, in illustrative examples, using the second OFDM numerology at the second SCS or other OFDM numerologies at other SCSs.
    Type: Application
    Filed: March 26, 2021
    Publication date: October 21, 2021
    Inventors: Mehmet Izzet GURELLI, Qiang WU, Jing SUN, Xiaoxia ZHANG, Tao LUO, Iyab Issam SAKHNINI, Jun MA, Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL, Juan MONTOJO, Peter GAAL
  • Publication number: 20210329680
    Abstract: A method of wireless communication by a user equipment (UE) includes receiving a first stage of piggyback downlink control information (DCI). The first stage includes scheduling information for a second stage of piggyback DCI. The method also includes receiving the second stage in accordance with the scheduling information. The second stage includes component DCIs. The first and second stages are separately decoded. A method of wireless communication by a base station includes transmitting a first stage of piggyback DCI. The base station also transmits the second stage in accordance with the scheduling information. The second stage includes component DCIs. The first and second stages are separately coded.
    Type: Application
    Filed: April 20, 2021
    Publication date: October 21, 2021
    Inventors: Qiang WU, Iyab Issam SAKHNINI, Mehmet Izzet GURELLI, Jun MA, Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL
  • Publication number: 20210329681
    Abstract: A scheduling entity can schedule regular or periodic control resources (CORESETs) that are relatively sparse in the time domain compared to dynamic CORESETS. Sparsely scheduled regular CORESETs can reduce the overhead incurred by a user equipment for monitoring the control channels in the CORESETs or search spaces. When the network has a burst of data to send, the scheduling entity can use downlink control information (DCI) piggybacked in physical downlink shared channel (PDSCH) resources to schedule dynamic CORESETs between the regular CORESETs. The dynamic CORESETs can provide resources for a PDSCH and/or physical downlink shared channel (PUSCH).
    Type: Application
    Filed: April 20, 2021
    Publication date: October 21, 2021
    Inventors: Iyab Issam SAKHNINI, Qiang WU, Tao LUO, Jun MA, Mehmet Izzet GURELLI, Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL, Xiaoxia ZHANG, Jing SUN
  • Publication number: 20210321448
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a multi-slot grant for one of uplink communication or downlink communication. The UE may communicate in the multi-slot grant based at least in part on information that provides an indication of one or more time gaps for the multi-slot grant. Numerous other aspects are provided.
    Type: Application
    Filed: April 13, 2021
    Publication date: October 14, 2021
    Inventors: Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL, Iyab Issam SAKHNINI, Qiang WU, Jun MA, Mehmet Izzet GURELLI
  • Publication number: 20210321429
    Abstract: Aspects described herein relate to receiving, from a base station, a downlink communication indicating resources scheduled for one or more repetitions of a downlink control channel, receiving, from the base station, the one or more repetitions of the downlink control channel, and combining the one or more repetitions of the downlink control channel to decode the downlink control channel. In another aspect, the network can transmit, to a user equipment (UE), a downlink communication indicating resources scheduled for one or more repetitions of a downlink control channel, and transmitting, to the UE, the one or more repetitions of the downlink control channel over the resources.
    Type: Application
    Filed: April 5, 2021
    Publication date: October 14, 2021
    Inventors: Iyab Issam SAKHNINI, Qiang WU, Tao LUO, Mahmoud TAHERZADEH BOROUJENI, Jing SUN, Xiaoxia ZHANG, Wooseok NAM, Mostafa KHOSHNEVISAN, Jun MA, Peter GAAL, Juan MONTOJO, Mehmet Izzet GURELLI, Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL
  • Publication number: 20210321411
    Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for determining quasi co-location (QCL) and/or transmission configuration information (TCI) state assumption information for a dynamic control resource set (CORESET). An example method by a user equipment (UE) generally includes receiving a first physical downlink control channel (PDCCH) in a control channel monitoring occasion, the first PDCCH indicating at least one dynamic CORESET; and receiving a second PDCCH within the dynamic CORESET, wherein the second PDCCH is received in accordance with at least one QCL assumption for the at least one dynamic CORESET.
    Type: Application
    Filed: April 8, 2021
    Publication date: October 14, 2021
    Inventors: Iyab Issam SAKHNINI, Tao LUO, Qiang WU, Xiaoxia ZHANG, Jun MA, Jing SUN, Juan MONTOJO, Peter GAAL, Mehmet Izzet GURELLI, Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL
  • Publication number: 20210321383
    Abstract: Methods, systems, and devices for wireless communications are described. A device such as a user equipment (UE) or a base station may identify a beam switching capability of the UE, the beam switching capability indicating a threshold quantity of beam switches during a transmission time interval, a threshold quantity of symbol periods between beam switching operations, or a combination thereof. The device may determine that the beam switching capability of the UE is satisfied based at least in part on one or more parameters (e.g., one or more symbol period durations, one or more quantities of beam switches during a transmission time interval, one or more adjustment parameters, one or more threshold values associated with the capability of the UE, etc.). The device may perform one or more beam switching operations based on determining that the beam switching capability is satisfied.
    Type: Application
    Filed: April 8, 2021
    Publication date: October 14, 2021
    Inventors: Wooseok Nam, Tao Luo, Jing Sun, Xiaoxia Zhang, Zhifei Fan, Juan Montojo, Ahmed Abdelaziz Ibrahim Abdelaziz Zewail, Sungwoo Park
  • Publication number: 20210320772
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a demodulation reference signal (DMRS) configuration that indicates a code-division multiplexing (CDM) group configured for the UE; receive a first indication of an antenna port, included in the CDM group, assigned to the UE for reception of a first set of DMRS transmissions; receive a second indication of whether a second set of DMRS transmissions for another antenna port, included in the CDM group, is present or absent for another UE; and perform channel estimation based at least in part on the first indication of the antenna port and the second indication of whether the second set of DMRS transmissions for the other antenna port is present or absent. Numerous other aspects are provided.
    Type: Application
    Filed: February 10, 2021
    Publication date: October 14, 2021
    Inventors: Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL, Xiaoxia ZHANG, Zhifei FAN, Jing SUN, Tao LUO
  • Publication number: 20210321439
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive configuration information that schedules a search space set; receive, on the search space set, first downlink control information (DCI) that schedules or configures one or more second DCIs that are multiplexed with one or more semi-persistent scheduling occasions; and process the one or more second DCIs based at least in part on the first DCI. Numerous other aspects are provided.
    Type: Application
    Filed: March 23, 2021
    Publication date: October 14, 2021
    Inventors: Iyab Issam SAKHNINI, Qiang WU, Tao LUO, Jun MA, Mehmet Izzet GURELLI, Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL, Jing SUN, Xiaoxia ZHANG, Juan MONTOJO, Peter GAAL
  • Publication number: 20210321406
    Abstract: Aspects of the present disclosure relate to a technique for determining quasi co-location (QCL) and/or transmission configuration information (TCI) state assumption information for a dynamic control resource set (CORESET). A user equipment (UE) may receive and/or detect a downlink control information (DCI) that schedules at least one dynamic CORESET and indicates a TCI state from a list of one or more TCI states for the dynamic CORESET. The UE may apply the indicated TCI state for processing physical downlink control channel (PDCCH) transmissions in the dynamic CORESET when one or more conditions are met.
    Type: Application
    Filed: March 8, 2021
    Publication date: October 14, 2021
    Inventors: Iyab Issam SAKHNINI, Tao LUO, Qiang WU, Jun MA, Xiaoxia ZHANG, Jing SUN, Juan MONTOJO, Peter GAAL, Mehmet Izzet GURELLI, Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL
  • Publication number: 20210321412
    Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for determining quasi co-location (QCL) and/or transmission configuration information (TCI) state assumption information for a dynamic control resource set (CORESET). In some cases, if certain conditions are met, a user equipment (UE) may follow QCL assumptions for a physical downlink shared channel (PDSCH) scheduled by a same PDCCH that indicated the dynamic CORESET. An example method by a UE generally includes receiving at least one downlink control information (DCI), of a first physical downlink control channel (PDCCH), that schedules at least one dynamic CORESET; and receiving a second PDCCH in the dynamic CORESET, wherein the UE is to apply at least one QCL assumption associated with a PDSCH for the at least one dynamic CORESET if one or more conditions are met.
    Type: Application
    Filed: April 8, 2021
    Publication date: October 14, 2021
    Inventors: Iyab Issam SAKHNINI, Tao LUO, Qiang WU, Jun MA, Xiaoxia ZHANG, Jing SUN, Juan MONTOJO, Peter GAAL, Mehmet Izzet GURELLI, Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL
  • Publication number: 20210306866
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit an indication of a beam switching capability of the UE as a multiple of a physical layer timing unit for a wireless network in which the UE is located; and receive one or more scheduling grants that are based at least in part on the beam switching capability of the UE. Numerous other aspects are provided.
    Type: Application
    Filed: February 24, 2021
    Publication date: September 30, 2021
    Inventors: Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL, Qiang WU, Iyab Issam SAKHNINI, Mehmet Izzet GURELLI, Jun MA