Patents by Inventor Kevin Luo
Kevin Luo 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: 20250047335Abstract: Systems and methods for User Equipment (UE)-assisted precoder selection are provided. In one embodiment, a method implemented in a base station for transmitting data to a UE comprises transmitting, to the UE, Channel State Information Reference Signal (CSI-RS) on two sets of CSI-RS resources; receiving, from the UE, two sets of CSI; estimating a first channel capacity for the codebook-based precoder based on the first set of CSI and a second channel capacity for the non-codebook-based precoder based on the second set of CSI; selecting one precoder from the codebook-based precoder and the non-codebook-based precoder based on the first channel capacity and the second channel capacity; and performing data transmission to the UE using the selected precoder. Embodiments of the proposed solution enable selecting a best precoder from the codebook-based precoder and the non-codebook-based precoder.Type: ApplicationFiled: December 7, 2021Publication date: February 6, 2025Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Yongquan QIANG, Jianguo LONG, Kevin LUO, Mats ÅHLANDER
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Patent number: 12052084Abstract: A method and network node for virtual beam sweeping of signals received by antennas of the network node are provided. According to one aspect, a method includes determining elements of abeam forming matrix W. The method further includes determining elements of a virtual beam sweeping matrix V, the elements of the virtual beam sweeping matrix V being determined to form beams between beams formed by the beam forming matrix W. The method also includes applying the matrices V and W to uplink signals Sa received by antennas of the network node to produce received signals Sb in a beam space.Type: GrantFiled: April 18, 2019Date of Patent: July 30, 2024Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Kevin Luo, Mercy George
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Publication number: 20240235895Abstract: A method performed by a network node is provided. The network node calculates a first Information Carrying Capacity (ICC) associated with a first layer. The first ICC is calculated based on beam weights calculated for the first layer, and an established channel estimate of the first layer. The first layer is selected to a set of layers. The network node performs actions iteratively at least one time for layer selection, adds a subsequent layer, adapts the calculated beam weights to be used as subsequent beam weights for a subsequent layer, calculates a subsequent ICC for the subsequent layer, decides whether to select the added subsequent layer to the set of layers and rejecting the subsequent layer when the sum of the ICCs of the layers in the set of layers and the subsequent ICC is lower than the sum of ICCs of the layers in the set of layers.Type: ApplicationFiled: May 26, 2021Publication date: July 11, 2024Inventors: Mats ÅHLANDER, Kevin LUO
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Patent number: 11968016Abstract: According to some embodiments, a network node configured to communicate with a wireless device is provided. The network node includes processing circuitry configured to: configure a first measurement resource for channel measurements, configure a second measurement resource for interference measurements, cause transmission of a first signal with a first predefined power level in a transmission occasion of the first measurement resource, and cause transmission of a second signal with a second predefined power level in a transmission occasion of the second measurement resource where at least one of the first predefined power level and the second predefined power level is configured to at least in part mitigate channel quality indication, CQI, saturation.Type: GrantFiled: March 30, 2021Date of Patent: April 23, 2024Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Shaohua Li, Sebastian Faxér, Kevin Luo
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Publication number: 20240058168Abstract: Systems and methods are provided for determining a likelihood that a drop released from a bottle will land in an eye of a user. Each of an eye of a user and a tip of a bottle and illuminated and imaged to provide at least one image. An orientation of the bottle is determined via an inertial measurement unit, and a likelihood that a drop released from the bottle will land in the eye of the user is determined from the determined orientation and the at least one image.Type: ApplicationFiled: August 21, 2023Publication date: February 22, 2024Inventors: Oleg Rumyantsev, Supriyo Sinha, Dimitri Azar, Kevin Luo, Michael Eyal
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Publication number: 20230122910Abstract: According to some embodiments, a network node configured to communicate with a wireless device is provided. The network node (16) includes processing circuitry configured to: configure a first measurement resource for channel measurements, configure a second measurement resource for interference measurements, cause transmission of a first signal with a first predefined power level in a transmission occasion of the first measurement resource, and cause transmission of a second signal with a second predefined power level in a transmission occasion of the second measurement resource where at least one of the first predefined power level and the second predefined power level is configured to at least in part mitigate channel quality indication, CQI, saturation.Type: ApplicationFiled: March 30, 2021Publication date: April 20, 2023Inventors: Shaohua LI, Sebastian FAXÉR, Kevin LUO
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Patent number: 11352381Abstract: The present invention relates to an improved synthesis of malathion. The presence of an acid facilitates the reaction between O,O-dimethyldithiophosphoric acid (O,O-DMDTPA) and maleate and leads to excellent product yield in shorter reaction time with fewer impurities.Type: GrantFiled: September 26, 2019Date of Patent: June 7, 2022Assignee: CHEMINOVA A/SInventors: David Huang, Bolin Fan, Kevin Luo
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Publication number: 20220149928Abstract: A method and network node for virtual beam sweeping of signals received by antennas of the network node are provided. According to one aspect, a method includes determining elements of abeam forming matrix W. The method further includes determining elements of a virtual beam sweeping matrix V, the elements of the virtual beam sweeping matrix V being determined to form beams between beams formed by the beam forming matrix W. The method also includes applying the matrices V and W to uplink signals Sa received by antennas of the network node to produce received signals Sb in a beam space.Type: ApplicationFiled: April 18, 2019Publication date: May 12, 2022Inventors: Kevin LUO, Mercy GEORGE
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Publication number: 20220002326Abstract: The present invention relates to an improved synthesis of malathion. The presence of an acid facilitates the reaction between O,O-dimethyldithiophosphoric acid (O,O-DMDTPA) and maleate and leads to excellent product yield in shorter reaction time with fewer impurities.Type: ApplicationFiled: September 26, 2019Publication date: January 6, 2022Inventors: David HUANG, Bolin FAN, Kevin LUO
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Patent number: 10447455Abstract: A method for using a high order modulation (HoM) mode for communications with a wireless device in a wireless communication network is provided. The method includes receiving downlink channel quality indicator (CQI) information from an uplink transmission of the wireless device and determining a downlink channel quality estimate from the CQI information. When a measurement of the downlink channel quality estimate satisfies the predetermined criteria for a first predetermined number of consecutive uplink transmissions from the wireless device, a downlink transmission mode of the wireless device is switched from a first modulation mode to the HoM mode.Type: GrantFiled: December 19, 2017Date of Patent: October 15, 2019Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Chandra Sekhar Bontu, Xixian Chen, Kevin Luo, Hong Ren, Hua Xu
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Publication number: 20180123748Abstract: A method for using a high order modulation (HoM) mode for communications with a wireless device in a wireless communication network is provided. The method includes receiving downlink channel quality indicator (CQI) information from an uplink transmission of the wireless device and determining a downlink channel quality estimate from the CQI information. When a measurement of the downlink channel quality estimate satisfies the predetermined criteria for a first predetermined number of consecutive uplink transmissions from the wireless device, a downlink transmission mode of the wireless device is switched from a first modulation mode to the HoM mode.Type: ApplicationFiled: December 19, 2017Publication date: May 3, 2018Inventors: Chandra Sekhar BONTU, Xixian CHEN, Kevin LUO, Hong REN, Hua XU
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Publication number: 20180099333Abstract: A method for inspection of 3D manufactured parts or structures or process control of a 3D manufacturing apparatus is provided. The method includes obtaining, in real-time during a 3D manufacturing build process in which at least one structure is built by the 3D manufacturing apparatus, a topographical scan of an area of a build platform on which the at least one structure is built. An evaluating step evaluates, by a processor, the topographical scan to determine a powder depth and/or a layer depth after powder redistribution. A determining step determines based on the evaluating, whether the powder depth or the layer depth is either inside or outside a predetermined range. A modifying step modifies, based on the determining, an operational characteristic of the 3D manufacturing apparatus. The topographical scan is obtained by a laser scan, a blue light scan, a confocal scan or a multifocal plane microscopy scan.Type: ApplicationFiled: October 11, 2016Publication date: April 12, 2018Applicant: General Electric CompanyInventors: Ehsan DehghanNiri, Christopher Joseph Lochner, Kevin Luo
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Patent number: 9879981Abstract: A system and related methods for evaluating a component using a reference feature and a replicate of the reference feature. The component has an exterior surface with a reference feature thereon. The method includes determining an initial condition of the reference feature, subjecting the component to at least one duty cycle after determining the initial condition, determining a subsequent condition of the reference feature after the at least one duty cycle while the component is in a service position, and forming a replicate of the reference feature while the reference feature is in one of the initial condition or the subsequent condition. One of the initial condition or the subsequent condition may be determined based on the replicate of the reference feature.Type: GrantFiled: December 2, 2016Date of Patent: January 30, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Ehsan Dehghan Niri, Thomas James Batzinger, Gregory Lee Hovis, Kevin Luo, Christopher Joseph Lochner
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Patent number: 9871642Abstract: A method for using a high order modulation (HoM) mode for communications with a wireless device in a wireless communication network is provided. The method includes receiving downlink channel quality indicator (CQI) information from an uplink transmission of the wireless device and determining a downlink channel quality estimate from the CQI information. When a measurement of the downlink channel quality estimate satisfies the predetermined criteria for a first predetermined number of consecutive uplink transmissions from the wireless device, a downlink transmission mode of the wireless device is switched from a first modulation mode to the HoM mode.Type: GrantFiled: June 25, 2015Date of Patent: January 16, 2018Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Chandra Sekhar Bontu, Xixian Chen, Kevin Luo, Hong Ren, Hua Xu
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Publication number: 20180014260Abstract: Systems and methods for dynamic cell breathing for power saving are disclosed. In some embodiments, a method of operation of a radio access node includes determining a target transmit power level from multiple predetermined transmit power levels for the radio access node. The method also includes determining that the current transmit power level should be adjusted to reach the target transmit power level and, in response, adjusting a transmit power level of the radio access node from the current transmit power level to the target transmit power level via multiple transmit power level adjustments. Adjusting the power level of the radio access node via more than one transmit power level adjustment makes it possible to avoid some of the issues with the sleep mode proposal, according to some embodiments.Type: ApplicationFiled: February 6, 2015Publication date: January 11, 2018Inventors: Hong Ren, Kevin Luo
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Publication number: 20170141885Abstract: A method for using a high order modulation (HoM) mode for communications with a wireless device in a wireless communication network is provided. The method includes receiving downlink channel quality indicator (CQI) information from an uplink transmission of the wireless device and determining a downlink channel quality estimate from the CQI information. When a measurement of the downlink channel quality estimate satisfies the predetermined criteria for a first predetermined number of consecutive uplink transmissions from the wireless device, a downlink transmission mode of the wireless device is switched from a first modulation mode to the HoM mode.Type: ApplicationFiled: June 25, 2015Publication date: May 18, 2017Applicant: Telefonaktiebolaget LM Erisson (Publ)Inventors: Chandra Sekhar BONTU, Xixian CHEN, Kevin LUO, Hong REN, Hua XU
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Publication number: 20100082372Abstract: A web- or network-based healthcare management tool is provided. The innovation provides for a browser-based version of a client that enables clinicians, from remote locations, to securely review patient data retrieved from a healthcare data store. Remote locations include, but are not limited to, from outside the hospital (e.g., at home) or from inside the hospital but in an office or lab that does not have intranet access to the healthcare data store.Type: ApplicationFiled: May 15, 2009Publication date: April 1, 2010Applicant: MICROSOFT CORPORATIONInventors: Jie Wen, Kevin Luo, Sameer Bade, Bei-Jing Guo, Lijiang Fang
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Patent number: 6531413Abstract: A method for depositing an undoped silicate glass layer. An undoped silicon glass layer is formed to fill a recessed region in a semiconductor substrate by performing at least three chemical vapor depositions. The recessed region is a trench of a shallow trench isolation, or a gap between a plurality of polysilicon or conductive layers. At each pass, under deposition conditions that are as conventionally defined, this method comprises increasing the number of times of deposition performed on the substrate and decreasing the time of each deposition inside a reaction chamber in order to have the thickness of the undoped silicate glass thinner. In this manner, the gap filling ability is enhanced and void formation is prevented. This method also includes, before each deposition is performed, rotating the semiconductor substrate a given angle in a clockwise or counter-clockwise direction so that by the last deposition, the semiconductor substrate has rotated a total of 360° or a multiple of 360°.Type: GrantFiled: December 5, 2000Date of Patent: March 11, 2003Assignee: United Microelectronics Corp.Inventors: Chris Hsieh, Kevin Luo
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Publication number: 20020068416Abstract: A method for depositing an undoped silicate glass layer. An undoped silicon glass layer is formed to fill a recessed region in a semiconductor substrate by performing at least three chemical vapor depositions. The recessed region is a trench of a shallow trench isolation, or a gap between a plurality of polysilicon or conductive layers. At each pass, under deposition conditions that are as conventionally defined, this method comprises increasing the number of times of deposition performed on the substrate and decreasing the time of each deposition inside a reaction chamber in order to have the thickness of the undoped silicate glass thinner. In this manner, the gap filling ability is enhanced and void formation is prevented. This method also includes, before each deposition is performed, rotating the semiconductor substrate a given angle in a clockwise or counter-clockwise direction so that by the last deposition, the semiconductor substrate has rotated a total of 360° or a multiple of 360°.Type: ApplicationFiled: December 5, 2000Publication date: June 6, 2002Inventors: Chris Hsieh, Kevin Luo