Patents by Inventor Hong Ren

Hong Ren 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: 20220124731
    Abstract: A network node is provided. The network node includes processing circuitry configured to estimate spatial transmission information, STI, for each of a plurality of wireless devices, and determine spatial separability among the plurality of wireless devices based at least in part on the estimated STI for each of the plurality of wireless devices. The processing circuitry is further configured to cause scheduling of the plurality of wireless devices on the same communication resources based at least in part on the determined spatial separability.
    Type: Application
    Filed: February 13, 2019
    Publication date: April 21, 2022
    Inventors: Chandra Sekhar BONTU, Amr EL-KEYI, Jagadish GHIMIRE, Hong REN
  • Publication number: 20220085929
    Abstract: According to one aspect, a network node is provided. The network node includes processing circuitry configured to allocate resources for a reference signal signaling for a first wireless device, the allocated resources configured to separate, in a slot, at least one transmission layer of the first wireless device from at least one transmission layers of a second wireless device by at least one of scheduling the first wireless device and second wireless device different reference signal ports that are separated by using the same resource elements and different CDM codes, scheduling the first wireless device and second wireless device at least one shared reference signal port using the same resource elements and CDM code, and scheduling the first wireless device and second wireless device on different reference signal ports that are separated by FDM using different resource elements and the same CDM codes.
    Type: Application
    Filed: December 26, 2018
    Publication date: March 17, 2022
    Inventors: Hong REN, Chandra Sekhar BONTU, Mattias FRENNE, Jagadish GHIMIRE
  • Patent number: 11271623
    Abstract: Systems and methods are disclosed herein that related to determining and using a codebook in a virtualized Active Antenna System (AAS). In some embodiments, a first radio node that is configured to communicate with a second radio node comprises a radio interface and processing circuitry configured to transform a first codebook that is in a non-virtualized antenna domain to a second codebook that is in a virtualized antenna domain based on a port to antenna mapping matrix used to transform a signal from the virtualized antenna domain to the non-virtualized antenna domain prior to transmission of the signal in a corresponding virtualized cell or sector. The processing circuitry is further configured to receive a transmit signal from the second radio node to thereby provide a received signal and perform Precoding Matrix Indication (PMI) estimation based on the received signal using the second codebook in the virtualized antenna domain.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: March 8, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Yongquan Qiang, Girum Fantaye, Jianguo Long, Hong Ren
  • Publication number: 20220056045
    Abstract: The instant invention is related to a novel solid form of ceftolozane sulfate (the DMAc solvate of ceftolozane sulfate (Form 3)), compositions comprising ceftolozane sulfate DMAc solvate (Form 3), synthesis of Form 3 and an improved crystallization process using Form 3 to prepare ceftolozane sulfate Form 2. Novel compositions also include ceftolozane sulfate solid Form 3 and/or other crystalline and amorphous solid forms of ceftolozane.
    Type: Application
    Filed: June 1, 2017
    Publication date: February 24, 2022
    Applicant: Merck Sharp & Dohme Corp.
    Inventors: Kevin Matthew Maloney, Eric M. Sirota, Richard J. Varsolona, Donald R. Gauthier, Jr., Hong Ren
  • Patent number: 11218243
    Abstract: A method performed by a wireless transmitter determining a transport block size (TBS) is provided. The method includes determining a TBS using a general function of a number of physical resource blocks (PRBs) to be granted (N_PRB), a number of resource elements (REs) per PRB (N_RE{circumflex over (?)}(DL,PRB)), a number of layers per transport block (?), a number of bits per modulation (Q_m), and a coding rate determined by a modulation coding scheme (MCS) (R), allocating a transport block of the determined TBS and transmitting the transport block to a wireless receiver. Apparatuses for implementing the method are also provide.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: January 4, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Xixian Chen, Jianguo Long, Yongquan Qiang, Hong Ren
  • Publication number: 20210376889
    Abstract: Systems and methods are disclosed herein for multi-user pairing and, in some embodiments, Signal to Interference plus Noise Ratio (SINR) calculation in a cellular communications system. In some embodiments, a method performed in a base station of a cellular communications system to perform downlink scheduling for Multi-User Multiple Input Multiple Output (MU-MIMO) comprises, for each User Equipment (UE) of a plurality of UEs considered for MU-MIMO UE pairing, obtaining a relative beam power at the UE for each of the plurality of beams. The relative beam power at the UE for each beam is a value that represents a relative beam power of the beam at the UE relative to a beam power of a strongest of the plurality of beams at the UE. The method further comprises selecting a MU-MIMO UE pairing based on the obtained relative beam powers.
    Type: Application
    Filed: October 18, 2018
    Publication date: December 2, 2021
    Inventors: Yongquan Qiang, Jianguo Long, Hong Ren
  • Patent number: 11190245
    Abstract: Apparatuses and methods for port-to-antenna mapping in a virtualized Active Antenna System (AAS) are provided. In one embodiment, a method for a radio node includes determining a source codebook associated with at least one antenna port; determining a target codebook associated with at least one physical antenna; and determining a port-to-antenna mapping matrix based at least in part on the determined source codebook and the determined target codebook.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: November 30, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Yongquan Qiang, Jianguo Long, Hong Ren, Shiguang Guo
  • Publication number: 20210344390
    Abstract: Methods, network nodes and wireless device for setting an electrical tilt of an antenna array toward a distribution of wireless devices are disclosed. According to one aspect, a method includes for each of at least one sector of an area covered by the antenna array, determining a function of precoding matrix indicators, PMIs, received from a plurality of WDs in the sector. The method includes determining a current electrical tilt angle of the sector based on the function of PMIs. The method further includes comparing a difference between the current electrical tilt angle of the sector and a previously determined electrical tilt angle of the antenna array to a first threshold, and setting the electrical tilt angle of the antenna array based on the comparison.
    Type: Application
    Filed: September 10, 2018
    Publication date: November 4, 2021
    Inventors: Jianguo LONG, Hong REN, Ahmed NOUAH, Yongquan QIANG, Israfil BAHCECI
  • Patent number: 11159212
    Abstract: A method in a network node for Multiple Input Multiple Output (MIMO) is provided. The method comprises: obtaining a precoding matrix indicator (PMI) for a first codebook for use in a Single User Multiple Input Multiple Output (SU-MIMO) transmission; determining a precoding matrix for a second codebook, based on the obtained precoding matrix indicator; and selecting the determined precoding matrix for the second codebook in response to determining that an User Equipment (UE) is scheduled for a Multi-User (MU)-MIMO transmission. A network node for performing this method is also provided.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: October 26, 2021
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Yongquan Qiang, Hong Ren, Jianguo Long, Mats Åhlander
  • Publication number: 20210211166
    Abstract: Apparatuses and methods for port-to-antenna mapping in a virtualized Active Antenna System (AAS) are provided. In one embodiment, a method for a radio node includes determining a source codebook associated with at least one antenna port; determining a target codebook associated with at least one physical antenna; and determining a port-to-antenna mapping matrix based at least in part on the determined source codebook and the determined target codebook.
    Type: Application
    Filed: September 7, 2018
    Publication date: July 8, 2021
    Inventors: Yongquan QIANG, Jianguo LONG, Hong REN, Shiguang GUO
  • Publication number: 20210203464
    Abstract: Apparatuses and methods are disclosed for Channel State Information Reference Signal (CSI-RS) resource mapping. According to one embodiment, a method in a network node includes allocating at least one resource for CSI Interference Measurement (CSI-IM) within a predetermined IM region of a Resource Block (RB) of the cell, the predetermined IM region encompassing a plurality of resources of the RB of the cell, the allocated at least one resource being selected from among the plurality of resources of the IM region to reduce a likelihood of overlap with at least one resource allocated for CSI-IM in a neighboring cell, the predetermined IM region at least partially overlapping with a respective predetermined IM region of a RB of the neighboring cell, and the predetermined IM region of the cell not overlapping resources allocated for Non-Zero Power Channel State Information Reference Signal (NZP CSI-RS) of the neighboring cell.
    Type: Application
    Filed: September 17, 2018
    Publication date: July 1, 2021
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Hong REN, Jianguo LONG, Yongquan QIANG
  • Publication number: 20210194546
    Abstract: A method in a network node for Multiple Input Multiple Output (MIMO) is provided. The method comprises: obtaining a precoding matrix indicator (PMI) for a first codebook for use in a Single User Multiple Input Multiple Output (SU-MIMO) transmission; determining a precoding matrix for a second codebook, based on the obtained precoding matrix indicator; and selecting the determined precoding matrix for the second codebook in response to determining that an User Equipment (UE) is scheduled for a Multi-User (MU)-MIMO transmission. A network node for performing this method is also provided.
    Type: Application
    Filed: December 20, 2019
    Publication date: June 24, 2021
    Inventors: Yongquan QIANG, Hong REN, Jianguo LONG, Mats ÅHLANDER
  • Publication number: 20210147281
    Abstract: A particle mixture comprising particles of a first glass frit and particles of a second glass frit; wherein the first glass frit comprises ?10 to ?25 mol. % BaO; and ?0 to ?10 mol. % Bi2O3; and wherein the second glass frit comprises: ?35 to ?55 mol. % Bi2O3; ?2 to ?20 mol. % ZnO; and ?10 to ?40 mol. % B2O3.
    Type: Application
    Filed: April 1, 2019
    Publication date: May 20, 2021
    Inventors: Edwin Peter Kennedy Currie, Svetlana Nikolaevna EMELIANOVA, Hong Ren
  • Publication number: 20210128463
    Abstract: Drug delivery devices and methods of controlled drug delivery to a patient are provided. The drug delivery device may include one or two microchip elements, each of which has a body portion with one or more drug release apertures in fluid communication with at least one containment reservoir. The drug release apertures are closed off by one or more reservoir caps which can be electrically activated to open the drug release apertures. The drug delivery device also includes (i) a drug formulation disposed in the at least one containment reservoir, and (ii) at least one drug-permeable membrane. In some cases, an outer housing is spaced a distance from an exterior wall of the body portion of the microchip element, the outer housing includes the at least one drug-permeable membrane, and a depot space is defined between the drug-permeable membrane and the exterior wall of the body portion of the microchip element.
    Type: Application
    Filed: October 30, 2020
    Publication date: May 6, 2021
    Inventors: Robert Farra, Elizabeth Proos, Scott W. James, Nicolas J. Pacelli, Hong-Ren Wang
  • Publication number: 20210122717
    Abstract: Disclosed herein is a novel process for preparing Compound A free base, 5-((2,4-diaminopyrimidin-5-yl)oxy)-4-iso-propyl-2-methoxybenzenesulfonamide, and a citrate salt of Compound A with simplified chemistry and a high overall yield: Compound A. In one embodiment, the overall yield from the starting material 2-isopropylphenol to Compound A citrate salt is greater than 50%. In another embodiment, the overall yield is greater than 60%. Also disclosed herein are novel salts and solvates of Compound A.
    Type: Application
    Filed: April 18, 2019
    Publication date: April 29, 2021
    Applicants: Merck Sharp & Dohme Corp., Werthenstein BioPharma GmbH
    Inventors: Kevin M. Maloney, Kallol Basu, John Y.L. Chung, Richard Desmond, Michael James Di Maso, Guy R. Humphrey, Alfred Y. Lee, Dan Lehnherr, Feng Peng, Hong Ren, Mark Weisel, Siwei Zhang, Patrick Larpent
  • Patent number: 10979119
    Abstract: Embodiments of a method in a base station for precoding a downlink transmission are disclosed. In some embodiments, the method comprises obtaining, for a time instant k, an estimate of a channel matrix for a wireless channel for a downlink from the base station to a wireless device and projecting the estimate of the channel matrix onto one or more sets of spatial orthonormal functions, thereby obtaining respective sets of coefficients. The method further comprises, for each set of spatial orthonormal functions, filtering the set of coefficients for the time instant k based on a filtering parameter that is specific to a downlink channel to be transmitted. The method further comprises generating beamforming weights using the filtered set of coefficients for at least one of the sets of spatial orthonormal functions, and precoding the downlink channel using the beamforming weights.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: April 13, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Chandra Sekhar Bontu, Mats Åhlander, Magnus Hurd, Anders Johansson, Hong Ren
  • Publication number: 20210036749
    Abstract: Systems and methods are disclosed herein that related to determining and using a codebook in a virtualized Active Antenna System (AAS). In some embodiments, a first radio node that is configured to communicate with a second radio node comprises a radio interface and processing circuitry configured to transform a first codebook that is in a non-virtualized antenna domain to a second codebook that is in a virtualized antenna domain based on a port to antenna mapping matrix used to transform a signal from the virtualized antenna domain to the non-virtualized antenna domain prior to transmission of the signal in a corresponding virtualized cell or sector. The processing circuitry is further configured to receive a transmit signal from the second radio node to thereby provide a received signal and perform Precoding Matrix Indication (PMI) estimation based on the received signal using the second codebook in the virtualized antenna domain.
    Type: Application
    Filed: October 30, 2017
    Publication date: February 4, 2021
    Inventors: Yongquan Qiang, Girum Fantaye, Jianguo Long, Hong Ren
  • Publication number: 20210006316
    Abstract: Systems and methods for estimating Signal-to-Noise Ratio (SNR) for Multi-User Multiple-Input and Multiple-Output (MU-MIMO) based on channel orthogonality. In some embodiments, a method performed by a radio access node includes obtaining a SU-MIMO signal quality measurement for at least a first user and an additional user; obtaining an indication of orthogonality between a channel of the first user and a channel of the additional user; and estimating a MU-MIMO signal quality measurement for the first user as if the first user and the additional user are paired with each other for a potential MU-MIMO transmission based on the SU-MIMO signal quality measurements and the indication of orthogonality. In this way, a computational complexity for the SINR estimation of MU-MIMO users can be greatly reduced. This may enable a large number of user pairing alternatives to be evaluated in practical wireless systems to achieve improved MU-MIMO performance.
    Type: Application
    Filed: February 28, 2019
    Publication date: January 7, 2021
    Inventors: Jianguo Long, Mats Åhlander, Chandra Sekhar Bontu, Yongquan Qiang, Hong Ren
  • Publication number: 20200403673
    Abstract: Embodiments of a method in a base station for precoding a downlink transmission are disclosed. In some embodiments, the method comprises obtaining, for a time instant k, an estimate of a channel matrix for a wireless channel for a downlink from the base station to a wireless device and projecting the estimate of the channel matrix onto one or more sets of spatial orthonormal functions, thereby obtaining respective sets of coefficients. The method further comprises, for each set of spatial orthonormal functions, filtering the set of coefficients for the time instant k based on a filtering parameter that is specific to a downlink channel to be transmitted. The method further comprises generating beamforming weights using the filtered set of coefficients for at least one of the sets of spatial orthonormal functions, and precoding the downlink channel using the beamforming weights.
    Type: Application
    Filed: April 18, 2018
    Publication date: December 24, 2020
    Inventors: Chandra Sekhar BONTU, Mats ÅHLANDER, Magnus HURD, Anders JOHANSSON, Hong REN
  • Patent number: 10778377
    Abstract: Methods, apparatuses and a user equipment for performing a Hybrid Automatic Repeat Request (HARQ) transmission in a downlink from a base station to at least one user equipment are provided. An exemplary method comprises receiving a HARQ feedback to a HARQ transmission performed with respect to a transport block. The method further comprises determining whether the HARQ feedback is an ambiguous HARQ feedback with respect to a negative acknowledgement or a discontinuous transmission. The method additionally comprises setting (S206) the ambiguous HARQ feedback as the negative acknowledgement or the discontinuous transmission based on the number of HARQ transmissions having been performed and the corresponding received HARQ feedbacks within a target number of HARQ transmissions counting from a first HARQ transmission. With the methods and apparatuses, the ambiguity of the HARQ feedback can be overcome and communication efficiency may be improved.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: September 15, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Yongquan Qiang, Hong Ren, Ping Yu, Feng Li, Yang Tian