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).
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Publication number: 20210400635Abstract: Exemplary embodiments include methods for receiving device-to-device (D2D) data transmissions from a second user equipment (UE) in a radio access network (RAN). Embodiments can include receiving, from the second UE, a first data transmission. Embodiments can also include determining whether the first data transmission was correctly received. Embodiments can also include determining a first set of frequency-domain parameters to use for generating a time-domain sequence. In some embodiments, the set of frequency-domain parameters can comprise a basic frequency-domain sequence, a width (X), and an offset (Y). Exemplary embodiments can also include transmitting, to the second UE using a time-domain sequence generated from the first set of frequency-domain parameters, a first hybrid ARQ (HARQ) indicator of whether the first data transmission was correctly received.Type: ApplicationFiled: October 31, 2019Publication date: December 23, 2021Inventors: Ricardo Blasco Serrano, Hieu Do, Shehzad Ali Ashraf
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Publication number: 20210392620Abstract: A method of operating a user equipment, UE, for device-to-device, D2D, transmission of a channel state information, CSI, report and/or a CSI reference signal, CSI-RS, is provided. The method may include identifying a CSI selection window containing candidate resources for use in D2D transmission of the CSI report and/or CSI-RS. The method may include identifying a data selection window containing candidate resources for use in D2D transmission of data and which at least partially overlaps a region of the CSI selection window. The method may include controlling transmission of data and the CSI report and/or CSI-RS to use at least one resource that is selected within the overlapping region of the CSI selection window and the data selection window.Type: ApplicationFiled: September 19, 2019Publication date: December 16, 2021Inventors: Shehzad Ali ASHRAF, Ricardo BLASCO SERRANO, Wanlu SUN, Stefano SORRENTINO
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Patent number: 11184115Abstract: 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: GrantFiled: January 31, 2018Date of Patent: November 23, 2021Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Zhenhua Zou, Shehzad Ali Ashraf, Gustav Wikström
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Publication number: 20210345363Abstract: A method is disclosed for operating a user equipment (UE) for device-to-device (D2D) communications. The method includes receiving booking information from another UE. The booking information identifying a resource that the other UE is booking to use for transmission by the other UE and further including priority information. The method further includes selectively transmitting preemption signaling based on whether the received priority information indicates lower priority than local priority information that is associated with a transmission to be scheduled by the UE. The preemption signaling indicates preemption of the UE to use the resource identified by the booking information. The method further includes scheduling the UE to transmit using the resource identified by the booking information.Type: ApplicationFiled: September 10, 2019Publication date: November 4, 2021Inventors: Congchi Zhang, Shehzad Ali Ashraf, Marco Belleschi
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Publication number: 20210337512Abstract: Methods and systems for autonomous sidelink resource allocation are provided. According to one aspect, a method performed by at least one wireless device for autonomous sidelink resource allocation comprises: at a first time, T1, transmitting a first control message announcing a first reservation of a set of radio resources for sidelink communication; at a second time, T2, transmitting a second control message announcing a second reservation of a set of radio resources for sidelink communication; and, at a third time, T3, performing a sidelink communication using the set of radio resources reserved by the second reservation. The second reservation may, for example, confirm the first reservation, cancel or partially cancel the first reservation, modify the first reservation, or completely change the first reservation.Type: ApplicationFiled: August 30, 2019Publication date: October 28, 2021Inventors: Marco Belleschi, Shehzad Ali Ashraf, Ricardo Blasco Serrano
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Publication number: 20210321363Abstract: A method, system and apparatus are disclosed. A network node configured to communicate with a wireless device is provided. The network node configured to, and/or comprising a radio interface and/or comprising processing circuitry configured to receive a unicast request message from a wireless device where the unicast request message includes information associated with a request for a unicast connection, and determine whether to permit establishment of the requested unicast connection based at least in part on the information in the unicast request message.Type: ApplicationFiled: August 2, 2019Publication date: October 14, 2021Inventors: Marco BELLESCHI, Shehzad Ali ASHRAF, Gabor FODOR
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Publication number: 20210314962Abstract: A first radio device may send SL control information to a second radio device. The SL control information indicates at least one radio resource for transmission of a reference signal from the first radio device. The second radio device receives the reference signal. Further, the second radio device may forward the received sidelink control information to one or more other radio devices. Based on the received reference signal, the second radio device estimates quality of a radio channel between the first radio device and the second radio device. The estimated quality of the radio channel, may be used to control an SL radio transmission between the first radio device and the second radio device.Type: ApplicationFiled: August 3, 2018Publication date: October 7, 2021Inventors: Shehzad Ali ASHRAF, Ricardo BLASCO SERRANO, Wanlu SUN
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Patent number: 11140697Abstract: A technique for transmitting and receiving data (602) using a sidelink, SL, radio communication (604) between a first radio device (100) and a second radio device (200) is described. As to one method aspect of the technique, a scheduling assignment, SA (601), announcing a transmission of the data (602) for the second radio device (200) is broadcasted. The data is transmitted according to the SA (601) from the first radio device (100) in a unicast mode to the second radio device (200). Responsive to the data transmission, a control feedback (608) is received from the second radio device (200) in a unicast mode at the first radio device (100), wherein the control feedback (608) is received on a feedback radio resource (708) determined by at least one of the first radio device (100) and the second radio device (200).Type: GrantFiled: April 11, 2018Date of Patent: October 5, 2021Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Liang Hu, Shehzad Ali Ashraf, Marco Belleschi, Ricardo Blasco Serrano, Li Jingya
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Patent number: 11071127Abstract: A transmitting node (110) transmits a message (210) instructing a radio node (105) that data will be transmitted to the radio node (105) according to the same Downlink Control Information (DCI) each period (250). The message (210) includes a duration of the period (250). The transmitting node (110) further transmits the DCI to the radio node (105) for the periodic transmission (260). The radio node (105) receives the message (210) and the DCI from the transmitting node (110), and decodes each of a plurality of transmissions of the periodic transmission (260) according to the DCI.Type: GrantFiled: November 2, 2017Date of Patent: July 20, 2021Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Torsten Dudda, Shehzad Ali Ashraf, Gustav Wikström
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Publication number: 20210219320Abstract: A radio device receives a first message from a further radio device. The first message indicates an intention of the further radio device to perform a device-to-device radio transmission on a set of radio resources. The radio device determines a status of the set of radio resources. In response to the first message, the radio device sends a second message comprising an indicator which indicates the determined status of the set of radio resources in terms of at least three levels.Type: ApplicationFiled: July 9, 2018Publication date: July 15, 2021Inventors: Marco BELLESCHI, Shehzad Ali ASHRAF, Ricardo BLASCO SERRANO, Gabor FODOR, Wanlu SUN, Chunhui ZHANG
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Publication number: 20210204250Abstract: A radio device receives first sidelink control information from a further radio device. Based on assistance information stored in the radio device and the received first sidelink control information, the radio device determines a configuration for transmission of second sidelink control information. Based on the determined configuration for transmission of the second sidelink control information, the radio device receives the second sidelink control information from the further radio device. Based on the received second sidelink control information, the radio device receives a sidelink radio transmission from the further radio device.Type: ApplicationFiled: April 5, 2018Publication date: July 1, 2021Inventors: Shehzad Ali ASHRAF, Ricardo BLASCO SERRANO, Gabor FODOR, Jingya LI
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Publication number: 20210184797Abstract: 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: ApplicationFiled: February 5, 2021Publication date: June 17, 2021Inventors: Zhenhua ZOU, Shehzad Ali ASHRAF, Yufei BLANKENSHIP, Caner KILINC, Zhan ZHANG
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Publication number: 20210176751Abstract: A method in a communication device having a plurality of protocol layers including a media access control, MAC, layer and a physical, PHY, layer, includes, at the MAC layer, selecting a plurality of carriers for carrier aggregation, each of the carriers being associated to a respective hybrid automatic repeat request, HARQ, entity, and at the MAC layer, initiating a sidelink carrier reselection process by the first communication device in response to a triggering event. Related devices and computer program products are disclosed.Type: ApplicationFiled: April 4, 2019Publication date: June 10, 2021Inventors: Marco BELLESCHI, Shehzad Ali ASHRAF
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Publication number: 20210160849Abstract: According to some embodiments, a method may be provided to operate a wireless communication device. A transmission resource reservation is transmitted with associated directional information relating to a direction of transmission of a sidelink data message, and after transmitting the transmission resource reservation, the sidelink data message is transmitted in accordance with the directional information.Type: ApplicationFiled: September 9, 2019Publication date: May 27, 2021Inventors: Wanlu SUN, Shehzad Ali ASHRAF, Marco BELLESCHI, Ricardo BLASCO SERRANO
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Patent number: 11012270Abstract: 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: GrantFiled: October 13, 2015Date of Patent: May 18, 2021Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Bengt Lindoff, Shehzad Ali Ashraf, Robert Baldemair
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Patent number: 11012194Abstract: A method and device for sidelink data duplication. The method includes: determining whether a sidelink data packet is to be duplicated based on a sidelink radio bearer on which the sidelink data packet is to be transmitted; performing sidelink data duplication of the sidelink data packet, when it is determined that the sidelink data packet is to be duplicated based on the sidelink radio bearer. Therefore, a solution provides for properly configuring data duplication for sidelink.Type: GrantFiled: July 26, 2018Date of Patent: May 18, 2021Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Zhang Zhang, Shehzad Ali Ashraf, Liang Hu, Marco Belleschi, Ricardo Blasco Serrano
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Publication number: 20210126726Abstract: 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: ApplicationFiled: December 31, 2020Publication date: April 29, 2021Inventors: 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, Niklas Johansson, Martin 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
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Patent number: 10965402Abstract: 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: GrantFiled: March 19, 2018Date of Patent: March 30, 2021Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Zhenhua Zou, Shehzad Ali Ashraf, Yufei Blankenship, Caner Kilinc, Zhan Zhang
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Patent number: 10938497Abstract: 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: GrantFiled: December 13, 2019Date of Patent: March 2, 2021Assignee: 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, 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, Niklas Johansson, Martin Johansson, Du Ho Kang, Eleftherios Karipidis, Patrik Karlsson, Ali S. Khayrallah, Caner Kilinc, Göran N. Klang, Sara Landstrom, 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
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Publication number: 20200413397Abstract: A method in a radio device of radio resource allocation for transmitting data on a plurality of communication carriers is provided. The method includes sensing on a first carrier and obtaining a first set of candidate radio resources for a first transmission on the first carrier, performing a first selection of one or a plurality of the candidate radio resources from the first set to be used for the first transmission, sensing on a second carrier and obtaining a second set of candidate radio resources for a second transmission on the second carrier, performing a second selection of one or a plurality of the candidate radio resources from the second set to be used for the second transmission, and performing the first selection and the second selection in dependency to each other.Type: ApplicationFiled: November 27, 2018Publication date: December 31, 2020Inventors: Ricardo BLASCO SERRANO, Shehzad Ali ASHRAF, Marco BELLESCHI
