Patents by Inventor Ali Ashraf

Ali Ashraf 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).

  • A Wireless Device, a Network Node and Methods Therein for Transmission of Synchronization Signals
    Publication number: 20190312693
    Abstract: A method performed by a first wireless device (120) for transmitting a synchronization signal to a second wireless device (122). The first and second wireless devices (120,122) operate in a wireless communications network (100). The first wireless device (120) receives, from a network node (110) operating in the wireless communications network (100), a message indicating whether or not a carrier is to be used for transmitting a synchronization signal to the second wireless device (122). Further, the first wireless device (120) transmits, to the second wireless device (122), a synchronization signal on a carrier indicated by the received message.
    Type: Application
    Filed: April 5, 2019
    Publication date: October 10, 2019
    Inventors: Marco Belleschi, Shehzad Ali Ashraf, Ricardo Blasco Serrano
  • CONFIGURING PUNCTURE BUNDLES OF DATA FOR A FIRST SERVICE IN A TRANSMISSION OF A SECOND SERVICE
    Publication number: 20190296861
    Abstract: A transmitting node determines data for a first service will be transmitted during a time period when data for a second service will be transmitted. The data for the first service requires lower latency than the data for the second service and the data for the first service includes an original set of data for the first service and at least one repetition of the original set of data for the first service. The transmitting node adjusts resources consumed by the data for the first service based on available transmission resources. During the time period the transmitting node then transmits the data for the first service using the adjusted resources while data for the second service is transmitted during the time period.
    Type: Application
    Filed: March 19, 2018
    Publication date: September 26, 2019
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Zhenhua ZOU, Shehzad Ali ASHRAF, Yufei BLANKENSHIP, Caner KILINC, Zhan ZHANG
  • HARQ PROCESS FOR GRANT-FREE UPLINK TRANSMISSIONS
    Publication number: 20190268104
    Abstract: A wireless device, network node and a method for managing a hybrid automatic repeat request (HARQ) process for grant-free uplink access. The method includes transmitting data to a network node during a first time slot corresponding to a first PID according to a first mapping. The method further includes receiving a HARQ feedback signal indicating one of an acknowledgement, ACK, and a non-acknowledgement, NACK, associated with the first PID. When a NACK is received, an indication of a second time slot for a retransmission is received. The data corresponding to the first PID is retransmitted during the second time slot.
    Type: Application
    Filed: January 31, 2018
    Publication date: August 29, 2019
    Inventors: Zhenhua ZOU, Shehzad Ali ASHRAF, Gustav WIKSTRÖM
  • Technique for Communicating Control Information
    Publication number: 20190254010
    Abstract: A technique for communicating control information (510) in a radio network from a first station to a second station is described. The control information is indicative of a plurality of parameters (512) for a radio communication involving at least the second station. As to a method aspect of the technique, an entry of a table (520) is determined (302). The entry is indicative of at least one (512A) of the parameters of the control information. A reference (532) to the entry of the table and supplementary information (534) are transmitting (304) to the second station. The entry and the supplementary information are jointly indicative of the plurality of parameters of the control information.
    Type: Application
    Filed: October 24, 2017
    Publication date: August 15, 2019
    Inventors: Anders Carlsson, Shehzad Ali Ashraf, Robert Baldemair, Stefan Parkvall
  • RESOURCE ALLOCATION IN A WIRELESS NETWORK
    Publication number: 20190246400
    Abstract: A control message prospectively indicates a need of a communication device sending a data packet of a first class of data employing radio resources. The radio resources are reserved at least for the first class of data.
    Type: Application
    Filed: April 15, 2019
    Publication date: August 8, 2019
    Inventors: Shehzad Ali ASHRAF, Nadia BRAHMI
  • Network architecture, methods, and devices for a wireless communications network
    Patent number: 10367677
    Abstract: Methods and apparatus in a fifth-generation wireless communications network, including an example method, in a wireless device, that includes determining a reporting quality threshold for a parameter related to channel state information (CSI); performing a measurement for each of a plurality of beams from a first predetermined set of beams for evaluation; evaluating the measurement for each of the plurality of beams against the reporting quality threshold; discontinuing the performing and evaluating of measurements in response to determining that the reporting quality threshold is met for one of the beams, such that one or more beams in the first predetermined set of beams are not measured and evaluated; and reporting, to the wireless communications network, CSI for the one of the beams.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: July 30, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stefan Parkvall, Janne Peisa, Gunnar Mildh, Robert Baldemair, Stefan Wager, Jonas Kronander, Karl Werner, Richard Abrahamsson, Ismet Aktas, Peter Alriksson, Junaid Ansari, Shehzad Ali Ashraf, Henrik Asplund, Fredrik Athley, Håkan Axelsson, Joakim Axmon, Johan Axnäs, Kumar Balachandran, Gunnar Bark, Jan-Erik Berg, Andreas Bergström, Håkan Björkegren, Nadia Brahmi, Cagatay Capar, Anders Carlsson, Andreas Cedergren, Mikael Coldrey, Icaro L. J. da Silva, Erik Dahlman, Ali El Essaili, Ulrika Engström, Mårten Ericson, Erik Eriksson, Mikael Fallgren, Rul Fan, Gabor Fodor, Pål Frenger, Jonas Fridén, Jonas Fröberg Olsson, Anders Furuskár, Johan Furuskog, Virgile Garcia, Ather Gattami, Fredrik Gunnarsson, Ulf Gustavsson, Bo Hagerman, Fredrik Harrysson, Ning He, Martin Hessler, Kimmo Hiltunen, Songnam Hong, Dennis Hui, Jörg Huschke, Tim Irnich, Sven Jacobsson, Niklas Jaldén, Simon Järmyr, Zhiyuan Jiang, Martin Johansson, Niklas Johansson, Du Ho Kang, Eleftherios Karipidis, Patrik Karlsson, Ali S. Khayrallah, Caner Kilinc, Göran N. Klang, Sara Landström, Christina Larsson, Gen Li, Bo Lincoln, Lars Lindbom, Robert Lindgren, Bengt Lindoff, Fredrik Lindqvist, Jinhua Liu, Thorsten Lohmar, Qianxi Lu, Lars Manholm, Ivana Maric, Jonas Medbo, Qingyu Miao, Reza Moosavi, Walter Müller, Elena Myhre, Johan Nilsson, Karl Norrman, Bengt-Erik Olsson, Torgny Palenius, Sven Petersson, Jose Luis Pradas, Mikael Prytz, Olav Queseth, Pradeepa Ramachandra, Edgar Ramos, Andres Reial, Thomas Rimhagen, Emil Ringh, Patrik Rugeland, Johan Rune, Joachim Sachs, Henrik Sahlin, Vidit Saxena, Nima Seifi, Yngve Selén, Eliane Semaan, Sachin Sharma, Cong Shi, Johan Sköld, Magnus Stattin, Anders Stjernman, Dennis Sundman, Lars Sundström, Miurel Isabel Tercero Vargas, Claes Tidestav, Sibel Tombaz, Johan Torsner, Hugo Tullberg, Jari Vikberg, Peter Von Wrycza, Thomas Walldeen, Anders Wallén, Pontus Wallentin, Hai Wang, Ke Wang Helmersson, Jianfeng Wang, Yi-Pin Eric Wang, Niclas Wiberg, Emma Wittenmark, Osman Nuri Can Yilmaz, Ali Zaidi, Zhan Zhang, Zhang Zhang, Yanil Zheng
  • CONTROL USING NR TDD
    Publication number: 20190207739
    Abstract: A wireless device, network node and methods using new radio time division duplex, NR-TDD, are provided. In one embodiment, the network node includes processing circuitry configured to configure placement of downlink control messages over at least two symbols of a NR TDD slot. The at least two symbols are different symbols in the time domain.
    Type: Application
    Filed: December 21, 2017
    Publication date: July 4, 2019
    Inventors: Gustav WIKSTRÖM, Ismet AKTAS, Shehzad Ali ASHRAF, Joachim SACHS
  • Allocation-Based Distortion Function Selection
    Publication number: 20190165980
    Abstract: A radio transmitter circuit (10) for transmitting signals within an uplink or sidelink frequency band of a cellular communications system is disclosed. It comprises a signal-generation circuit (20) configured to generate a transmission signal to be transmitted, and a radio front-end circuit (30), connected to the signal-generation circuit (20) at an input of the radio front-end circuit (30), for receiving the transmission signal, and configured to be connected to an antenna (40) at an output of the radio front-end circuit and to transmit the transmission signal to a remote node via said antenna (40). The signal-generation circuit (20) is configured to select a distortion function (D1, D2) based on a location of an allocated radio frequency resource, within said uplink or sidelink frequency band, for the transmission signal. Furthermore, the signal-generation circuit (20) is configured to generate an intermediate transmission signal, based on information to be transmitted in the transmission signal.
    Type: Application
    Filed: October 13, 2016
    Publication date: May 30, 2019
    Inventors: Bengt Lindoff, Shehzad Ali Ashraf, Robert Baldemair, Lars Sundström
  • Resource allocation in a wireless network
    Patent number: 10306641
    Abstract: A control message prospectively indicates a need of a communication device sending a data packet of a first class of data employing radio resources. The radio resources are reserved at least for the first class of data.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: May 28, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Shehzad Ali Ashraf, Nadia Brahmi
  • Methods and arrangements for alert message detection in low latency systems
    Patent number: 10297142
    Abstract: The present disclosure relates to methods and devices in clustered alarm scenarios. More particularly the disclosure pertains to methods and arrangements for detecting several messages of a preconfigured message type, arriving sequentially in time. This disclosure proposes a method, performed in a radio network node, of detecting several messages of a preconfigured message type. The method comprises detecting SI a first message of the preconfigured message type, the first message being associated with an event. The method further comprises reconfiguring S3, in the radio network node, in response to the detection, at least one radio setting related to detecting further messages of the preconfigured message type and monitoring S4 a radio spectrum for further messages of the preconfigured message type using the reconfigured radio settings.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: May 21, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Bengt Lindoff, Shehzad Ali Ashraf, Robert Baldemair, Fredrik Lindqvist
  • Robust carbon nanotube membranes and methods of making the same
    Patent number: 10279318
    Abstract: Carbon nanotube membranes that are flexible, non-fragile, stable at high temperatures, superhydrophobic, have submicrometer openings, and are resistant to delamination and corrosive conditions are provided. The carbon nanotube membranes comprise carbon nanotubes grown on a microporous, metal substrate, e.g. silver, quartz fiber filter, and HAST. Methods of fabricating the carbon nanotubes are also provided.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: May 7, 2019
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Seyed A. Dastgheib, Ali Ashraf, SungWoo Nam
  • Data streams with different priorities in contention-based systems
    Patent number: 10225848
    Abstract: A method by a communication device accessing a shared communication channel using a contention based access protocol. The device is configured to transmit data streams with different transmission priorities via the shared communication channel with a first data stream having a higher transmission priority than a second data stream. A method includes observing whether the shared communication channel is available for transmission, where when the channel is available, and the device waits for the duration of a time interval randomly selected from a time range in which the shared communication channel is available for transmission before the transmission is started. A first time interval is selected from a first time range for the transmission of the first data stream, and a second time interval is selected from a second time range, that does not overlap with the first time range, for the transmission of the second data stream.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: March 5, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Junaid Ansari, Ismet Aktas, Shehzad Ali Ashraf
  • Timing Requirement Dependent Search Space Configuration For MTC Devices Of Different Categories
    Publication number: 20190068338
    Abstract: An access node of the wireless communication network determines a configuration of a first search space (210) in terms of first time domain coordinates and first frequency domain coordinates of a time-frequency grid of radio resource elements. Further, the access node determines a configuration of a second search space (220) in terms of second time coordinates and second frequency domain coordinates of the time-frequency grid. The second search space (220) differs from the first search space at least with respect to the time domain coordinates. In radio resource elements of the first search space (210), the access node transmits downlink control information for a first class of radio devices subject to a first timing requirement. In radio resource elements of the second search space (220), the access node transmits downlink control information for a second class of radio devices subject to a second timing requirement which is stricter than the first timing requirement.
    Type: Application
    Filed: February 29, 2016
    Publication date: February 28, 2019
    Inventors: Shehzad Ali Ashraf, Robert Baldemair, Jörg Huschke, Bengt Lindoff
  • Methods for signal detection in a system with sparse synchronization signal rate
    Patent number: 10177898
    Abstract: The present disclosure relates to methods and devices for signal detection. More particularly the disclosure pertains to methods and arrangements for signal detection systems with sparse synchronization signal rate. According to some aspects, the disclosure relates to a method, performed in a radio network node, of detecting at least one signal transmitted from a wireless device, wherein the radio network node transmits a synchronization signal to the wireless device with a synchronization signal rate. The method comprises determining a period of time that has passed since the most recent transmission of the synchronization signal to the wireless device and configuring, in the radio network node, at least one radio setting related to detecting the at least one signal, based on the determined period of time. The method further comprises monitoring a radio spectrum for the at least one signal using the at least one radio setting.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: January 8, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Bengt Lindoff, Shehzad Ali Ashraf
  • DATA STREAMS WITH DIFFERENT PRIORITIES IN CONTENTION-BASED SYSTEMS
    Publication number: 20180332598
    Abstract: A method by a communication device accesses a shared communication channel using a contention based access protocol. The communication device is configured to transmit data streams with different transmission priorities via the shared communication channel with a first data stream having a higher transmission priority than a second data stream. A method includes observing whether the shared communication channel is available for transmission, where when the shared communication channel is available for transmission, and the communication device waits for the duration of a time interval randomly selected from a time range in which the shared communication channel is available for transmission before the transmission is started.
    Type: Application
    Filed: July 24, 2018
    Publication date: November 15, 2018
    Inventors: Junaid ANSARI, Ismet AKTAS, Shehzad Ali ASHRAF
  • Access Channel Management for Wireless Communication Devices
    Publication number: 20180295653
    Abstract: A method of managing access to a wireless communication network (101), comprising: a wireless communication device (101a, 101b, 101c) selecting (S2) an access channel out of a plurality of access channels (CH1, CH2, CH3) for transmission of a data packet based on a traffic type out of a plurality of traffic types (T1, T2, T3) assigned to the data packet.
    Type: Application
    Filed: October 23, 2015
    Publication date: October 11, 2018
    Inventors: Shehzad Ali Ashraf, Ismet Aktas, Junaid Ansari
  • Data streams with different priorities in contention-based systems
    Patent number: 10051647
    Abstract: A method by a communication device accesses a shared communication channel using a contention based access protocol. The communication device is configured to transmit data streams with different transmission priorities via the shared communication channel with a first data stream having a higher transmission priority than a second data stream. A method includes observing whether the shared communication channel is available for transmission, where when the shared communication channel is available for transmission, and the communication device waits for the duration of a time interval randomly selected from a time range in which the shared communication channel is available for transmission before the transmission is started.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: August 14, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (PUBL)
    Inventors: Junaid Ansari, Ismet Aktas, Shehzad Ali Ashraf
  • Window/Filter Adaptation in Frequency-Multiplexed OFDM-Based Transmission Systems
    Publication number: 20180198649
    Abstract: Techniques are disclosed for adaptively determining windowing functions and/or filtering functions in a system that uses multiple multicarrier modulation numerologies. According to one aspect, a method comprises determining (1610) first and second quantities of frequency resources needed for first and second multicarrier modulation schemes, respectively, the first and second multicarrier modulation schemes having first and second subcarrier spacings, respectively, the first subcarrier spacing differing from the second subcarrier spacing; determining (1620) a first windowing function and/or first filtering function, for use with the first multicarrier modulation scheme, based on at least one of the first and second quantities of frequency resources; and transmitting (1630) a multi-mode multi-carrier modulation signal in a frequency band, during the first interval, using the first and second multicarrier modulation schemes and the first and second quantities of frequency resources.
    Type: Application
    Filed: October 13, 2015
    Publication date: July 12, 2018
    Inventors: Bengt Lindoff, Shehzad Ali Ashraf, Robert Baldemair
  • Dynamic Selection of Multicarrier Mode Based on QoS Parameters
    Publication number: 20180191473
    Abstract: In one aspect, a transmitter, for a first time interval, allocates first and second portions of a frequency band to first and second multicarrier modulation schemes with first and second subcarrier spacings that differ from one another. The data is transmitted to wireless devices in the first time interval using the first and second multicarrier modulation schemes in the first and second portions of the frequency band. For a second time interval, third and fourth non-overlapping portions of a frequency band are allocated to third and fourth multicarrier modulation schemes that have third and fourth subcarrier spacings that differ from one another. The third and fourth portions and/or schemes differ from the first and second portions and/or schemes. The data is transmitted in the second time interval using the third and fourth multicarrier modulation schemes in the third and fourth portions of the frequency band.
    Type: Application
    Filed: November 10, 2015
    Publication date: July 5, 2018
    Inventors: Shehzad Ali Ashraf, Junaid Ansari, Robert Baldemair, Bengt Lindoff
  • RESOURCE ALLOCATION IN A WIRELESS NETWORK
    Publication number: 20180139757
    Abstract: A control message prospectively indicates a need of a communication device sending a data packet of a first class of data employing radio resources. The radio resources are reserved at least for the first class of data.
    Type: Application
    Filed: January 11, 2018
    Publication date: May 17, 2018
    Inventors: Shehzad Ali ASHRAF, Nadia BRAHMI