Patents by Inventor Shehzad Ali ASHRAF

Shehzad 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).

  • 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
  • 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
  • Resource allocation in a wireless network
    Patent number: 9907074
    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 22, 2016
    Date of Patent: February 27, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Shehzad Ali Ashraf, Nadia Brahmi
  • Methods and Arrangements for Alert Message Detection in Low Latency Systems
    Publication number: 20180025622
    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 S1 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: Application
    Filed: January 30, 2015
    Publication date: January 25, 2018
    Inventors: Bengt Lindoff, Shehzad Ali Ashraf, Robert Baldemair, Fredrik Lindqvist
  • Methods and Arrangements for Enabling Uplink Radio Access in Clustered Alarm Scenarios
    Publication number: 20180027448
    Abstract: The present disclosure relates to methods and devices in clustered alarm scenarios. More particularly the disclosure pertains to for enabling uplink radio access in clustered alarm scenarios. In particular, the disclosure relates to a method, performed in a radio network node, wherein the radio network node is configured for wireless communication with a plurality of electronic devices, of enabling uplink radio access. The method comprises determining S1 groupings, the groupings dividing the electronic devices into one or more groups and receiving S2, from one of the electronic devices, a request for radio resources.
    Type: Application
    Filed: January 30, 2015
    Publication date: January 25, 2018
    Inventors: Bengt Lindoff, Shehzad Ali Ashraf, Robert Baldemair, Fredrik Lindqvist
  • Network Architecture, Methods, and Devices for a Wireless Communications Network
    Publication number: 20170331670
    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: Application
    Filed: May 13, 2016
    Publication date: November 16, 2017
    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, Rui Fan, Gabor Fodor, Pål Frenger, Jonas Fridén, Jonas Fröberg Olsson, Anders Furuskär, 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, Yanli Zheng
  • Network Architecture, Methods, and Devices for a Wireless Communications Network
    Publication number: 20170331577
    Abstract: Methods and apparatus in a fifth-generation wireless communications, including an example method, in a wireless device, that includes receiving a downlink signal comprising an uplink access configuration index, using the uplink access configuration index to identify an uplink access configuration from among a predetermined plurality of uplink access configurations, and transmitting to the wireless communications network according to the identified uplink access configuration. The example method further includes, in the same wireless device, receiving, in a first subframe, a first Orthogonal Frequency-Division Multiplexing (OFDM) transmission formatted according to a first numerology and receiving, in a second subframe, a second OFDM transmission formatted according to a second numerology, the second numerology differing from the first numerology. Variants of this method, corresponding apparatuses, and corresponding network-side methods and apparatuses are also disclosed.
    Type: Application
    Filed: May 13, 2016
    Publication date: November 16, 2017
    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, Rui Fan, Gabor Fodor, Pål Frenger, Jonas Fridén, Jonas Fröberg Olsson, Anders Furuskär, 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, 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, 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, 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, Yanli Zheng
  • Cluster-based resource allocation for vehicle-to-vehicle communication
    Patent number: 9723457
    Abstract: A vehicle-to-vehicle (V2V) communication device manages a cluster including the V2V communication device and at least one of other V2V communication device. The V2V communication device determines a cluster description specifying one or more characteristics of the cluster indicates the cluster description over a cellular network to a network node. The network node receives the cluster description and, on the basis of the received cluster description, assigns to the cluster a set of resources for V2V communication. The network node sends a resource assignment over the cellular network to the V2V communication device. The resource assignment indicates the assigned set of resources. The V2V communication device receives the resource assignment and assigns resources from the set of resources to the V2V communication devices of the cluster. Further, the V2V communication device indicates the assigned resources to the at least one further V2V communication device of the cluster.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: August 1, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Nadia Brahmi, Shehzad Ali Ashraf
  • DATA STREAMS WITH DIFFERENT PRIORITIES IN CONTENTION-BASED SYSTEMS
    Publication number: 20170208605
    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: August 17, 2015
    Publication date: July 20, 2017
    Applicant: Telefonaktiebolaget LM Ericsson (PUBL)
    Inventors: Junaid ANSARI, Ismet AKTAS, Shehzad Ali ASHRAF