Patents by Inventor Ricardo Blasco Serrano

Ricardo Blasco Serrano 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).

  • Patent number: 11979859
    Abstract: 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: Grant
    Filed: August 30, 2019
    Date of Patent: May 7, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Marco Belleschi, Shehzad Ali Ashraf, Ricardo Blasco Serrano
  • Publication number: 20240147497
    Abstract: Systems and methods for sidelink Radio Link Monitoring (RLM) are disclosed. In one embodiment, a method performed by a first wireless communication device for RLM for a sidelink between the first wireless communication device and a second wireless communication device comprises transmitting a first part of sidelink control information (SCI) to the second wireless communication device, the first part of the SCI comprising information regarding one or more reference signals that are present on the sidelink for RLM measurements. In this manner, RLM is enabled without the need of (pre-)configured periodic signaling such as Channel State Information Reference Signal (CSI-RS) or Synchronization Signal Block (SSB).
    Type: Application
    Filed: October 13, 2020
    Publication date: May 2, 2024
    Inventors: Shehzad Ali Ashraf, Ricardo Blasco Serrano
  • Publication number: 20240129898
    Abstract: 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: Application
    Filed: December 26, 2023
    Publication date: April 18, 2024
    Inventors: Shehzad Ali ASHRAF, Ricardo BLASCO SERRANO, Gabor FODOR, Jingya LI
  • Publication number: 20240098764
    Abstract: Systems and methods are disclosed for resource selection in sidelink communications. In one embodiment, a method performed by a wireless communication device (WCD) for resource selection for a sidelink transmission comprises performing channel sensing of a channel to be used for sidelink transmission, determining a first set of resources that are available or not available from a perspective of the WCD based on results of performing the channel sensing, receiving one or more resource coordination messages from one or more neighboring WCDs, determining one or more second set of resources that are available or not available from perspectives of the one or more neighboring WCDs based on information comprised in the one or more resource coordination messages, and performing resource selection for a sidelink transmission based on the first set of resources and the one or more second sets of resources.
    Type: Application
    Filed: January 7, 2022
    Publication date: March 21, 2024
    Inventors: Shehzad Ali Ashraf, Jose Angel Leon Calvo, Ricardo Blasco Serrano
  • Publication number: 20240073875
    Abstract: The present disclosure provides a method in a first terminal device. The method includes: initiating a first transmission on a first resource; reserving a second resource for a second transmission; and initiating the second transmission on the second resource. The first resource and the second resource are separated by at least a time gap to enable a second terminal device that is to reserve or has reserved the second resource to trigger a resource reselection in response to sensing the first transmission within the time gap.
    Type: Application
    Filed: January 14, 2022
    Publication date: February 29, 2024
    Inventors: Jose Angel Leon Calvo, Ricardo Blasco Serrano, Shehzad Ali Ashraf
  • Publication number: 20240064564
    Abstract: Embodiments of the present disclosure provide a method (1200) for congestion control during sidelink transmissions. The method (1200) is performed by a user equipment, UE (1300), in a wireless communication network. The method (1200) comprises determining (1220) that the UE is actively receiving in a subset of resources during a time interval and estimating (1240) a congestion control metric for the time interval during which the UE is actively receiving in the subset of resources. The method (1200) comprises selecting (1260) one or more transmission parameters to use for sidelink transmissions in accordance with the estimated congestion control metric. Further, the method (1200) comprises performing (1280) sidelink transmission using the selected one or more transmission parameters. Corresponding UE, and computer program products are also disclosed.
    Type: Application
    Filed: January 18, 2022
    Publication date: February 22, 2024
    Inventors: Ricardo Blasco Serrano, Jose Angel Leon Calvo, Shehzad Ali Ashraf, Jeong Hun Kim
  • Patent number: 11910361
    Abstract: 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: Grant
    Filed: February 15, 2022
    Date of Patent: February 20, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Shehzad Ali Ashraf, Ricardo Blasco Serrano, Gabor Fodor, Jingya Li
  • Publication number: 20240015838
    Abstract: A wireless communication device (UE1) determines a DRX configuration for D2D communication. The DRX configuration is based on at least one timer maintained by the wireless communication device (UE1). Further, the wireless communication device (UE1) controls the at least one timer based on at least one D2D transmission between the wireless communication device (UE1) and a further wireless communication device (UE2). Based on the DRX configuration, the wireless communication device (UE1) receives at least one D2D transmission (405) from the further wireless communication device (UE2).
    Type: Application
    Filed: July 29, 2021
    Publication date: January 11, 2024
    Inventors: Shehzad Ali Ashraf, Zhang Zhang, Antonino Orsino, Hieu Do, Ricardo Blasco Serrano, Congchi Zhang
  • Publication number: 20240015656
    Abstract: A method, system and apparatus are disclosed for wake-up signal and go-to-sleep signal for sidelink communications. In one embodiment, a wireless device is configured to monitor a power saving signal for the SL DRX on at least one resource within a set of dedicated resources at a physical sidelink feedback channel, PSFCH, occasion. In one embodiment, a wireless device is configured to transmit, to a further WD, a power saving signal for the SL DRX on at least one resource within a set of dedicated resources at a physical sidelink feedback channel, PSFCH, occasion.
    Type: Application
    Filed: October 22, 2021
    Publication date: January 11, 2024
    Inventors: Hieu DO, Shehzad Ali ASHRAF, Ricardo BLASCO SERRANO, Jose Angel LEON CALVO
  • Publication number: 20230389054
    Abstract: A resource pool for selection of radio resources for D2D transmissions by wireless communication devices is divided into multiple subsets (S1, S2, S3) of radio resources which are each associated with at least one of multiple types of selection mechanisms. Depending on which of the multiple types of selection mechanisms is applied by a wireless communication device for selection of radio resources for D2D transmissions, the wireless communication device performs prioritization of the subsets (S1, S2, S3). Based on the prioritization of the subsets (S1, S2, S3), the wireless communication device selects at least on radio resource from the resource pool. Further, the wireless communication device performs one or more D2D transmissions on the selected at least one radio resource.
    Type: Application
    Filed: October 23, 2020
    Publication date: November 30, 2023
    Inventors: Jose Angel Leon Calvo, Shehzad Ali Ashraf, Ricardo Blasco Serrano
  • Publication number: 20230389051
    Abstract: Methods for enabling inter-User Equipment (UE) resource coordination are provided. More specifically, methods performed by a receiving device and a transmitting device for enabling inter-UE resource coordination are provided. The methods disclosed herein can help achieve a sound tradeoff between benefits of resource coordination and overhead associated with resource coordination. Specifically, the methods can help reduce network load and ineffective resource coordination message, obtain better suggestion in terms of rules and formats of the resource coordination message, and create a framework for combining different types of resource coordination formats.
    Type: Application
    Filed: October 22, 2021
    Publication date: November 30, 2023
    Inventors: Jose Angel Leon Calvo, Hieu Do, Shehzad Ali Ashraf, Ricardo Blasco Serrano
  • Patent number: 11817948
    Abstract: A method in a first terminal device for facilitating direct communication with a second terminal device. The method comprises transmitting to the second terminal device a Modulation and Coding Scheme (MCS) index, based on which the second terminal device can obtain a modulation order and a Transport Block Size (TBS) in accordance with a first mapping or a second mapping between MCS indices on one hand and modulation orders and TBSs on the other. The MCS index is determined by the first terminal device by selectively applying the first or second mapping.
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: November 14, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Shaohua Li, Ricardo Blasco Serrano, Mikael Fallgren
  • Patent number: 11818568
    Abstract: 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: Grant
    Filed: August 3, 2018
    Date of Patent: November 14, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Shehzad Ali Ashraf, Ricardo Blasco Serrano, Wanlu Sun
  • Patent number: 11818070
    Abstract: A technique for transmitting and receiving a sequence of symbols on a sidelink, SL, in a transmission time interval, TTI, is described. As to a method aspect of the technique, an automatic gain control, AGC, is performed for the SL based on at least one first symbol of the SL in the TTI. Based on the AGC, SL control information, SCI, encoded in at least one second symbol of the SL in the TTI is received. Data encoded in at least one third symbol of the SL in the TTI is received based on the SCI.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: November 14, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Hieu Do, Ricardo Blasco Serrano, Ning He
  • Patent number: 11805501
    Abstract: 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: Grant
    Filed: June 21, 2022
    Date of Patent: October 31, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ricardo Blasco Serrano, Shehzad Ali Ashraf, Marco Belleschi
  • Publication number: 20230319950
    Abstract: A wireless communication device (10) determines that a further wireless communication device (10) is configured to switch between an inactive reception state and an active reception state. Based on when the further wireless communication device (10) will be in the active reception state, the wireless communication device (10) determines a candidate set of radio resources. From the candidate set of radio resources, the wireless communication device (10) selects at least one radio resource for a D2D transmission from the wireless communication device (10) to the further wireless communication device (10).
    Type: Application
    Filed: September 10, 2021
    Publication date: October 5, 2023
    Inventors: Hieu Do, Shehzad Ali Ashraf, Zhang Zhang, Ricardo Blasco Serrano, Antonino Orsino, Min Wang
  • Publication number: 20230309134
    Abstract: A method, system, and apparatus are disclosed. In one or more embodiments, a wireless device is provided. The wireless device includes processing circuitry configured to determine whether at least one of a plurality of transmission resources associated with a first wireless device is part of a resource conflict, and cause transmission of resource coordination information that indicates the determination whether the at least one of a plurality of transmission resources associated with the first wireless device is part of the resource conflict.
    Type: Application
    Filed: July 9, 2021
    Publication date: September 28, 2023
    Inventors: Jose Angel LEON CALVO, Ricardo BLASCO SERRANO, Shehzad Ali ASHRAF
  • Publication number: 20230309065
    Abstract: A wireless communication device (10) configures a selection window and a sensing window. The selection window indicates radio resources allowed to be selected by the wireless communication device for a D2D transmission by the wireless communication device (10) and the sensing window indicates which radio resources are to be used for estimating an occupation status of the radio resources in the selection window. By monitoring the radio resources indicated by the sensing window, the wireless communication device (10) estimates the occupation status of the radio resources in the selection window. Based on the estimated occupation status of the radio resources in the selection window, the wireless communication device (10) selects radio resources from the selection window. Using the selected radio resources, the wireless communication device (10) performs at least one D2D transmission to at least one further wireless communication device (10).
    Type: Application
    Filed: August 4, 2020
    Publication date: September 28, 2023
    Inventors: Jose Angel Leon Calvo, Ricardo Blasco Serrano, Shehzad Ali Ashraf, Zhang Zhang
  • Publication number: 20230284332
    Abstract: A wireless communication device (10) simultaneously maintains a first DRX configuration for D2D communication and a second DRX configuration for D2D communication. Based on at least one of the first DRX configuration and the second DRX configuration, the wireless communication device (10) participates in D2D communication with one or more further wireless communication devices (10).
    Type: Application
    Filed: July 29, 2021
    Publication date: September 7, 2023
    Inventors: Congchi Zhang, Ricardo Blasco Serrano, Hieu Do, Zhang Zhang, Antonino Orsino, Shehzad Ali Ashraf
  • Patent number: 11711807
    Abstract: 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: Grant
    Filed: July 9, 2018
    Date of Patent: July 25, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Marco Belleschi, Shehzad Ali Ashraf, Ricardo Blasco Serrano, Gabor Fodor, Wanlu Sun, Chunhui Zhang