Patents by Inventor Fu Cheng

Fu Cheng 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: 11395279
    Abstract: According to some embodiments, a method in a wireless device comprises: receiving a control channel (e.g., physical downlink control channel (PDCCH)) that includes control information that indicates a set of time and frequency resources allocated for the wireless device to receive a data transmission; determining that the set of time and frequency resources allocated for data transmission overlaps with a control resource region (e.g., control resource set (CORESET)); and receiving the data transmission in the set of time and frequency resources allocated for data transmission. The control information may include a bitmap that indicates at one or more groups of time and frequency resources excluded/included for the data transmission region.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: July 19, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Sorour Falahati, Robert Baldemair, Jung-Fu Cheng, Carola Faronius, Havish Koorapaty, Fredrik Ovesjö, Stefan Parkvall, Christian Skärby
  • Publication number: 20220225411
    Abstract: A method for accessing a cellular communications network in unlicensed spectrum is provided. More specifically, the method is related to performing a Listen-Before-Talk (LBT) procedure prior to transmitting a Physical Random Access Channel (PRACH) preamble for accessing a New Radio-Unlicensed (NR-U) network. A User Equipment (UE) first performs the LBT procedure. If the LBT procedure is successful, the UE then generates a punctured PRACH preamble and transmits the punctured PRACH preamble. By puncturing the PRACH preamble, it is possible to create a gap(s) for performing the LBT procedure in a way that is backward compatible with existing NR-U specification and does not reduce a number of random access occasions in a slot or a mini-slot. As a result, it is possible to transmit PRACH preambles in consecutive random access occasions, thus helping to increase spectrum utilization and reduce latency in the cellular communications network.
    Type: Application
    Filed: April 30, 2020
    Publication date: July 14, 2022
    Inventors: Johan Axnäs, Stephen Grant, Jung-Fu Cheng, David Sugirtharaj, Johan Rune
  • Publication number: 20220225293
    Abstract: There is disclosed a method of operating a user equipment in a radio access network, the user equipment being configured with a transmission resource pool. The transmission resource pool comprises resources for transmission of response control signaling by the user equipment. The method comprises transmitting response control signaling utilising a resource structure, the resource structure being selected from the transmission resource pool based on a signaling characteristic of characterising signaling, the resource structure further being selected based on selection control information included in a received selection control message. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: March 29, 2022
    Publication date: July 14, 2022
    Inventors: Robert BALDEMAIR, Daniel CHEN LARSSON, Jung-Fu CHENG, Havish KOORAPATY, Stefan PARKVALL
  • Patent number: 11387975
    Abstract: According to certain embodiments, a method in a first network node scheduling time-division-duplexing (TDD) transmission for a first cell is provided. The method includes receiving transmission direction planning information from a plurality of other network nodes scheduling TDD transmissions for other cells. At least one transmission direction plan of the first network node is adapted based on the transmission direction planning information received from the plurality of other network nodes.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: July 12, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Du Ho Kang, Jung-Fu Cheng, Sorour Falahati, Havish Koorapaty
  • Patent number: 11380721
    Abstract: A gate structure includes a gate and a first isolation structure having a top surface and a bottom surface. The gate includes a first sidewall adjacent to the first isolation structure, a second sidewall, a first horizontal surface adjacent to a bottom edge of the first sidewall and a bottom edge of the second sidewall, the first horizontal surface being between the top surface of the first isolation structure and the bottom surface of the first isolation structure. The gate also includes a second horizontal surface adjacent to a top edge of the second sidewall. An effective channel width defined by the gate structure includes a height of the second sidewall and a width of the second horizontal surface.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: July 5, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chia-Yu Wei, Fu-Cheng Chang, Hsin-Chi Chen, Ching-Hung Kao, Chia-Pin Cheng, Kuo-Cheng Lee, Hsun-Ying Huang, Yen-Liang Lin
  • Patent number: 11381348
    Abstract: There is disclosed a method of operating a feedback radio node in a wireless communication network. The method includes transmitting Hybrid Acknowledgement Repeat Request, HARQ, feedback, according to a HARQ feedback timing, the HARQ feedback timing being based on one timing representation out of a set having a first timing representation and a second timing representation. The disclosure also pertains to related devices and methods.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: July 5, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Robert Baldemair, Jung-Fu Cheng
  • Publication number: 20220209898
    Abstract: Methods and apparatus are provided to support CBG-based retransmission on configured UL resources. The base station provides downlink feedback information (DPI) to the UE for one or more HARQ processes. The DPI comprises TB-level feedback, retransmission control information, and CBG-level feedback. The TB-level feedback indicates, for each HARQ process, ACK/NACK of a transport block associated with the HARQ process. The retransmission control information indicates, for each NACK'ed TB, whether the base station expects retransmission at the TB level or a CBG level. The CBG-level feedback indicates, for each NACK'ed TB where the CBG-indicator bitmap indicates code block group level retransmission, ACK/NACK for one or more CBGs in the NACK'ed transport block.
    Type: Application
    Filed: May 11, 2020
    Publication date: June 30, 2022
    Inventors: Reem Karaki, Jung-Fu Cheng
  • Publication number: 20220206891
    Abstract: An error handling method performed by a computing device, the computing device comprises at least one computing device component and a board management controller (BMC) coupled to the at least one computing device component, the method comprises the steps of a BMC detecting an error relating to at least one computing device component, the BMC determining from a database a technical specification to fix the error and generating information for accessing the technical specification. An error handling apparatus comprises a BMC and at least one computing device component coupled to the BMC. The BMC is configured to detect an error relating to the at least one computing device component, determine from in a database a technical specification to fix the error, and generate information for accessing the technical specification.
    Type: Application
    Filed: December 29, 2021
    Publication date: June 30, 2022
    Inventors: LUNG-HSING TING, MING-HO HU, FU-CHENG DENG, JING-WEN HUANG
  • Patent number: 11375499
    Abstract: A method in a communication device for managing uplink transmissions from the communication device to a network node. The method includes obtaining a timing advance value, the timing advance value indicating a time period in which the communication device shall advance a first uplink subframe transmission to the network node, obtaining information about a location of a gap within the first uplink subframe, the gap having a predefined duration, the location of the gap occurring after the time period indicated in the timing advance value, and performing the first uplink subframe transmission after the predefined duration.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: June 28, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Havish Koorapaty, Jung-Fu Cheng, Sorour Falahati, Amitav Mukherjee
  • Patent number: 11374703
    Abstract: A method for use in a transmitter includes sending a transmission comprising a transport block (TB) comprising a plurality of code blocks (CBs) arranged in one or more code block groups (CBGs). Each code block group includes one or more code blocks and each code block includes a plurality of coded bits. The transmission is sent to a receiver configured to use multi-bit hybrid automatic repeat request (HARQ) feedback per transport block. The method further includes receiving HARQ ACK or NACK feedback from the receiver one or more of the one or more code block groups of the transport block. The method further includes determining a number of code blocks or code block groups to send to the receiver in a retransmission based on at least the received HARQ ACK or NACK feedback.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: June 28, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Jung-Fu Cheng, Mattias Andersson, Yufei Blankenship, Stefan Parkvall, Sara Sandberg
  • Patent number: 11372478
    Abstract: A head mounted display, including at least one display, an image capture device, a light beam generator, and an optical compensation element, is provided. The display has an open area and generates at least one image light beam. The image capture device is disposed by overlapping with the display corresponding to the open area. The image capture device is configured to capture a target area image through the open area. The light beam generator is configured to project at least one light beam to a target area. The target area reflects the light beam to generate at least one reflection light beam. The optical compensation element is configured to convert a transmission direction of the image light beam and enable the reflection light beam to be directly transmitted to the image capture device.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: June 28, 2022
    Assignee: HTC Corporation
    Inventors: Bo-Wen Xiao, Fu-Cheng Fan
  • Publication number: 20220200734
    Abstract: A method and apparatus are disclosed for configured grant uplink control information (UCI) mapping rules. In one embodiment, a network node is configured to transmit downlink control information for a configured grant physical uplink shared channel, CG-PUSCH; and receive configured grant uplink control information, CG-UCI, on the CG-PUSCH, the CG-UCI being mapped to the CG-PUSCH based at least in part on a presence of at least one Hybrid Automatic Repeat reQuest-acknowledgement, HARQ-ACK. In another embodiment, a wireless device is configured to receive, from the network node, downlink control information for a configured grant physical uplink shared channel, CG-PUSCH; and transmit a configured grant uplink control information, CG-UCI, on the CG-PUSCH, the CG-UCI being mapped to the CG-PUSCH based at least in part on a presence of at least one Hybrid Automatic Repeat reQuest-acknowledgement, HARQ-ACK.
    Type: Application
    Filed: April 30, 2020
    Publication date: June 23, 2022
    Inventors: Reem KARAKI, Sorour FALAHATI, Jung-Fu CHENG, Havish KOORAPATY
  • Patent number: 11368976
    Abstract: Some of the example embodiments are directed towards a base station for determining a control timing configuration in order to provide a subframe timing setting for configuring downlink HARQ-ACK control timing for a cell serving a user equipment in a multiple cell communications network. The user equipment is served by a TDD based cell and a FDD based cell. Some example embodiments are directed towards user equipment for determining the control timing configuration as discussed above.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: June 21, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Daniel Chen Larsson, Jung-Fu Cheng
  • Publication number: 20220191905
    Abstract: A method, network node and wireless device for determining a fixed size resource block assignment in random access response, RAR, scheduling of MSG3 transmission based on at least one of bandwidth part size, slot/non-slot transmission and resource allocation type, are disclosed. According to one or more embodiments, a network node is configured to communicate with a wireless device. The network node includes processing circuitry configured to determine a fixed size resource block, RB, assignment for random access response, RAR, scheduling of an uplink transmission based at least in part on at least one of: whether the uplink transmission is one of slot and non-slot transmission, resource allocation type, and optionally indicate the fixed sized RB assignment to the wireless device.
    Type: Application
    Filed: March 8, 2022
    Publication date: June 16, 2022
    Inventors: Xingqin LIN, Jung-Fu CHENG
  • Patent number: 11363631
    Abstract: A radio access node or wireless device performs LBT on a channel and dynamically determines a transmission starting point on the channel, based on whether the LBT succeeds before or after a slot boundary between a slot n and a previous slot n?1. In response to determining that the LBT succeeds before the slot boundary, a transmission scheduled for the slot n is extended to start earlier, in the previous slot n?1. Otherwise, in response to determining that the LBT succeeds after the slot boundary, either a transmission scheduled for a next slot n+1 is extended to start earlier, in the slot n, or a transmission scheduled for the a second mini-slot of the slot n is extended to start earlier, in a first mini-slot of the slot n.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: June 14, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Reem Karaki, Havish Koorapaty, Jung-Fu Cheng, Sorour Falahati, Yu Yang, Amitav Mukherjee
  • Patent number: 11362039
    Abstract: A method of fabricating a semiconductor structure includes forming an alignment mark layer on a substrate; patterning the alignment mark layer for forming at least one alignment mark feature; forming a bottom conductive layer on the patterned alignment mark layer in a substantially conformal manner; forming an insulator layer on the bottom conductive layer; and forming a top conductive layer on the insulator layer.
    Type: Grant
    Filed: October 12, 2020
    Date of Patent: June 14, 2022
    Inventors: Kuo-Hung Lee, Chih-Fei Lee, Fu-Cheng Chang, Ching-Hung Kao
  • Patent number: 11360311
    Abstract: A head mounted display device includes a display, a light waveguide element, and a light shutter. The display periodically provides a display image. The light waveguide element receives the display image, generates a projection image according to the display image, projects the projection image from a second surface, and projects the projection image to a target zone from a first surface. The light shutter is adjacent to the second surface of the light waveguide element and is coupled to the light waveguide element. The light shutter is periodically disabled and enabled in an alternating manner.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: June 14, 2022
    Assignee: HTC Corporation
    Inventors: Cheng-Hsiu Tsai, Wei-Jen Chang, Fu-Cheng Fan
  • Patent number: 11363521
    Abstract: A method in a wireless device (110) comprises obtaining (104) information related to a signal transmission configuration for autonomous uplink transmission by the wireless device, the information comprising: a set of pre-allocated resources for use by the wireless device in performing autonomous uplink transmission on at least one secondary cell established between the wireless device and a network node (115), and a periodicity associated with the set of pre-allocated resources. The method comprises performing (1008) autonomous uplink transmission according to the obtained information related to the signal transmission configuration.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: June 14, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Reem Karaki, Jung-Fu Cheng, Havish Koorapaty, Amitav Mukherjee, Evanny Obregon
  • Publication number: 20220181202
    Abstract: The present disclosure describes a method of fabricating a semiconductor structure that includes forming a dummy gate structure over a substrate, forming a first spacer on a sidewall of the dummy gate structure and a second spacer on the first spacer, forming a source/drain structure on the substrate, removing the second spacer, forming a dielectric structure over the source/drain structure, replacing the dummy gate structure with a metal gate structure and a capping structure on the metal gate structure, and forming an opening in the dielectric structure. The opening exposes the source/drain structure. The method further includes forming a dummy spacer on a sidewall of the opening, forming a contact structure in the opening, and removing the dummy spacer to form an air gap between the contact structure and the metal gate structure. The contact structure is in contact with the source/drain structure in the opening.
    Type: Application
    Filed: February 28, 2022
    Publication date: June 9, 2022
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Meng-Yu LIN, Chun-Fu CHENG, Chung-Wei WU, Zhiqiang WU
  • Patent number: 11356218
    Abstract: In a wireless communication system (100), an access node (110) configures, for a user equipment, UE (105), each symbol in a slot (68a) individually as one of multiple possible symbol types. The types including an uplink symbol, a downlink symbol, and a different symbol. The access node (110) transmits, to the UE (105), a slot format indicator, SFI, specifying a number of downlink symbols in the slot (68a) and a number of uplink symbols in the slot (68a), and indicating whether or not the slot (68a) includes an unspecified number of different symbols. The UE (105) receives, from the access node (110), the SFI for the slot (68a), and determines the type of each of the symbols in the slot (68a) based on the number of uplink symbols and the number of downlink symbols.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: June 7, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sorour Falahati, Daniel Chen Larsson, Jung-Fu Cheng, Havish Koorapaty, Stefan Parkvall