Patents by Inventor Wanlu SUN

Wanlu SUN 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: 20210215830
    Abstract: Systems, methods, devices, and computer program products are provided. Operations thereof include sending, by a first system and to a user equipment, an activation notification that activates a dangerous area and causes the user equipment to increase a reporting granularity corresponding to a location of the user equipment. The dangerous area corresponds to an area that includes a vehicle operating therein. The reporting granularity is increased relative to a first reporting granularity. Operations include receiving, from the user equipment, location reporting data that is provided at the increased granularity and sending, to a second system, a first notification that corresponds to determining that the VRU will be in the dangerous area.
    Type: Application
    Filed: May 17, 2019
    Publication date: July 15, 2021
    Inventors: Henrik SAHLIN, Wanlu SUN, Stefano SORRENTINO
  • Publication number: 20210219320
    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: Application
    Filed: July 9, 2018
    Publication date: July 15, 2021
    Inventors: Marco BELLESCHI, Shehzad Ali ASHRAF, Ricardo BLASCO SERRANO, Gabor FODOR, Wanlu SUN, Chunhui ZHANG
  • Publication number: 20210160849
    Abstract: 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: Application
    Filed: September 9, 2019
    Publication date: May 27, 2021
    Inventors: Wanlu SUN, Shehzad Ali ASHRAF, Marco BELLESCHI, Ricardo BLASCO SERRANO
  • Publication number: 20210135732
    Abstract: A wireless device configured for transmission using a transmission scheme other than a multi-antenna transmission scheme is provided. The wireless device includes at least one receiver configured to receive a transmission of a multi-antenna transmission scheme, and processing circuitry configured to perform at least one of a channel estimation function and measurement function using the received transmission of the multi-antenna transmission scheme, the multi-antenna transmission scheme remaining transparent to the wireless device.
    Type: Application
    Filed: March 21, 2018
    Publication date: May 6, 2021
    Inventors: Wanlu SUN, Ricardo BLASCO SERRANO, Hieu DO, Stefano SORRENTINO
  • Patent number: 10892929
    Abstract: The methods and apparatus disclosed herein processes reference signals in an antenna diversity system, e.g., where both the transmitting and receiving devices use multiple antennas. The solution presented herein process reference signals at the transmitting device in such a way to enable the receiving device to efficiently and accurately estimate the covariance matrix associated with data transmitted using transmitter diversity. This is achieved by processing the reference signals used for the covariance estimation and the data signals in the same way, e.g., by precoding data and reference signal portions of one or more signals using the same coding scheme.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: January 12, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Stefano Sorrentino, Sebastian Faxér, Wanlu Sun
  • Publication number: 20200296762
    Abstract: A technique for transmitting and receiving data in a radio communication from a second radio device to a first radio device is described. As to a method aspect of the technique, one or more radio resources are determined based on radio signals received at the first radio device. The one or more radio resources comprise at least one spatial stream among different spatial streams receivable at the first radio device. A status message indicative of the one or more determined radio resources is transmitted to the second radio device. The data from the second radio device is received at the first radio device on at least one radio resource depending on the one or more radio resources indicated in the transmitted status message.
    Type: Application
    Filed: March 16, 2018
    Publication date: September 17, 2020
    Inventors: Wanlu SUN, Marco BELLESCHI, Ricardo BLASCO SERRANO, Hieu DO, Gabor FODOR, Jingya LI, Stefano SORRENTINO
  • Publication number: 20200281007
    Abstract: According to certain embodiments, a method is provided by a distribution node for location aware scheduling. The method includes determining information about a condition associated with a packet. At least one Quality of Service, QoS, parameter is adjusted based on the information about the condition associated with the packet. The at least one QoS parameter is used to schedule the packet for transmission to a receiver based on the at least one adjusted QoS parameter.
    Type: Application
    Filed: November 26, 2018
    Publication date: September 3, 2020
    Inventors: Wanlu SUN, Stefano SORRENTINO
  • Publication number: 20200252255
    Abstract: The methods and apparatus disclosed herein processes reference signals in an antenna diversity system, e.g., where both the transmitting and receiving devices use multiple antennas The solution presented herein process reference signals at the transmitting device in such a way to enable the receiving device to efficiently and accurately estimate the covariance matrix associated with data transmitted using transmitter diversity. This is achieved by processing the reference signals used for the covariance estimation and the data signals in the same way, e.g., by precoding data and reference signal portions of one or more signals using the same coding scheme.
    Type: Application
    Filed: September 28, 2018
    Publication date: August 6, 2020
    Inventors: Stefano Sorrentino, Sebastian Faxér, Wanlu Sun
  • Patent number: 10681724
    Abstract: The disclosure relates to methods of operating a first wireless terminal providing network communication with a radio access network using a network carrier and providing sidelink communications using a sidelink carrier. A scheduling grant may be received from the radio access network using a network subframe of the network carrier. First and second time measurements relating to the sidelink carrier and the network carrier respectively may be obtained. Responsive to the scheduling grant, the first time measurement, and the second time measurement, a communication sidelink subframe of the sidelink carrier may be selected to be used for a sidelink communication.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: June 9, 2020
    Assignee: Telefonaktiebolaget LM Ericcson (publ)
    Inventors: Ricardo Blasco Serrano, Hieu Do, Stefano Sorrentino, Wanlu Sun
  • Patent number: 10587435
    Abstract: A technique for determining channel coefficients for a first array of antennas coupled through respective first phase shifters to a first radio chain and a second array of antennas coupled through respective second phase shifters to a second radio chain is described. As to a method aspect of the technique, pairs of first and second phase vectors are applied to the first and second phase shifters, respectively. Each of the pairs defines complementary directional gains at the first and second arrays for receiving reference signals. A channel estimation is performed in each of the first and second radio chains for each of the pairs based on the received reference signals. Based on the channel estimations for each of the pairs, at least one channel coefficient for the antennas in each of the first and second arrays is determined.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: March 10, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Wanlu Sun, Stefano Sorrentino
  • Publication number: 20190289627
    Abstract: The disclosure relates to methods of operating a first wireless terminal providing network communication with a radio access network using a network carrier and providing sidelink communications using a sidelink carrier. A scheduling grant may be received from the radio access network using a network subframe of the network carrier. First and second time measurements relating to the sidelink carrier and the network carrier respectively may be obtained. Responsive to the scheduling grant, the first time measurement, and the second time measurement, a communication sidelink subframe of the sidelink carrier may be selected to be used for a sidelink communication.
    Type: Application
    Filed: March 14, 2018
    Publication date: September 19, 2019
    Inventors: Ricardo BLASCO SERRANO, Hieu DO, Stefano SORRENTINO, Wanlu SUN
  • Publication number: 20190229952
    Abstract: A technique for determining channel coefficients for a first array of antennas coupled through respective first phase shifters to a first radio chain and a second array of antennas coupled through respective second phase shifters to a second radio chain is described. As to a method aspect of the technique, pairs of first and second phase vectors are applied to the first and second phase shifters, respectively. Each of the pairs defines complementary directional gains at the first and second arrays for receiving reference signals. A channel estimation is performed in each of the first and second radio chains for each of the pairs based on the received reference signals. Based on the channel estimations for each of the pairs, at least one channel coefficient for the antennas in each of the first and second arrays is determined.
    Type: Application
    Filed: January 25, 2018
    Publication date: July 25, 2019
    Inventors: Wanlu Sun, Stefano Sorrentino
  • Patent number: 10313851
    Abstract: A method by a first UE for selecting a radio resource for transmitting a packet, includes obtaining a basic period value related to expected timing of transmissions by a second UE. A sub-period value is obtained that is less than the basic period value. Radio resources are monitored for a packet or booking message that is transmitted by the second UE and indicates that the second UE will potentially transmit a next packet using a radio resource and timing. The monitoring is restricted to a timeframe determined based on the sub-period value within each occurrence of a time period determined based on the basic period value. Responsive to the monitoring identifying the packet or booking message, a radio resource is selected for use in transmitting a packet based on the radio resource and timing that is potentially to be used by the second UE to transmit the next packet.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: June 4, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ricardo Blasco Serrano, Marco Belleschi, Hieu Do, Stefano Sorrentino, Wanlu Sun
  • Publication number: 20180279094
    Abstract: A method by a first UE for selecting a radio resource for transmitting a packet, includes obtaining a basic period value related to expected timing of transmissions by a second UE. A sub-period value is obtained that is less than the basic period value. Radio resources are monitored for a packet or booking message that is transmitted by the second UE and indicates that the second UE will potentially transmit a next packet using a radio resource and timing. The monitoring is restricted to a timeframe determined based on the sub-period value within each occurrence of a time period determined based on the basic period value. Responsive to the monitoring identifying the packet or booking message, a radio resource is selected for use in transmitting a packet based on the radio resource and timing that is potentially to be used by the second UE to transmit the next packet.
    Type: Application
    Filed: July 3, 2017
    Publication date: September 27, 2018
    Inventors: Ricardo BLASCO SERRANO, Marco BELLESCHI, Hieu DO, Stefano SORRENTINO, Wanlu SUN