Patents by Inventor Yufei Blankenship

Yufei Blankenship 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: 20230179230
    Abstract: A method of producing a set of coded bits from a set of information bits for transmission between a first node and a second node in a wireless communications system, the method comprises generating a codeword vector by encoding the set of information bits with a low-density parity-check code, wherein the codeword vector is composed of systematic bits and parity bits. The method comprises performing circular buffer-based rate matching on the generated codeword vector to produce the coded bits for transmission, wherein the circular buffer-based rate matching comprises puncturing a first plurality of systematic bits.
    Type: Application
    Filed: January 30, 2023
    Publication date: June 8, 2023
    Inventors: Mattias ANDERSSON, Yufei BLANKENSHIP, Sara SANDBERG
  • Publication number: 20230171778
    Abstract: Systems and methods related to sub-slot Physical Uplink Control Channel (PUCCH) repetitions are disclosed herein. In one embodiment, a method performed by a wireless communication device for sub-slot PUCCH repetitions comprises receiving one or more sub-slot PUCCH repetition configurations from a base station and transmitting two or more sub-slot PUCCH repetitions in accordance with one of the one or more sub-slot PUCCH repetition configurations. In this manner, sub-slot PUCCH transmissions can be made to be more reliable or have better coverage.
    Type: Application
    Filed: March 5, 2021
    Publication date: June 1, 2023
    Inventors: Kittipong Kittichokechai, Mattias Andersson, Yufei Blankenship, Ali Behravan, Sorour Falahati
  • Publication number: 20230140970
    Abstract: Methods, a terminal device and a base station for random access procedure. According to an embodiment, the terminal device determines a request message for random access. The request message comprises a preamble and one or more physical uplink shared channels (PUSCHs). The terminal device transmits the request message.
    Type: Application
    Filed: March 25, 2020
    Publication date: May 11, 2023
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Zhipeng LIN, Yufei BLANKENSHIP, Robert Mark HARRISON
  • Publication number: 20230141339
    Abstract: Embodiments herein relate to for example a method performed by a network node for determining a carrier aggregation (CA) limit for UE configuration with monitoring capability, based on: a downlink (DL) sub-slot structure and/or pattern of a DL slot; a set of overlapping spans across scheduled cells; start and end times for spans across component carriers; and/or spans at least partially overlapping a CA limit window.
    Type: Application
    Filed: April 9, 2021
    Publication date: May 11, 2023
    Inventors: Kittipong Kittichokechai, Yufei Blankenship, Mattias Andersson, Jonas Fröberg Olsson
  • Patent number: 11632138
    Abstract: According to some embodiments, a method of operation of a transmit node in a wireless communication system comprises performing polar encoding of a set of K information bits to thereby generate a set of polar-encoded information bits. The K information bits are mapped to the first K bit locations in an information sequence SN. The information sequence SN is a ranked sequence of N information bit locations among a plurality of input bits for the polar encoding where N is equivalent to a code length. A size of the information sequence SN is greater than or equal to K. The information sequence SN is optimized for the specific value of the code length (N). The method may further comprise transmitting the set of polar-encoded information bits.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: April 18, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Dennis Hui, Yufei Blankenship, Michael Breschel
  • Publication number: 20230116651
    Abstract: Methods, systems, and apparatus are provided for encoding code blocks for transmission in a wireless communication system. An example encoding method in a wireless communication system includes determining, for one or more code blocks of a transport block, that at least one of a plurality of criteria is met, wherein the plurality of criteria includes that a coding rate (R) is less than or equal to ¼ or that a transport block size (TBS) is less than or equal to 3824 bits and the R is less than or equal to ?. The one or more code blocks are encoded using low-density parity-check (LDPC) base graph 2, wherein a maximum code block size is 3840 bits. The one or more encoded code blocks are transmitted over the wireless network.
    Type: Application
    Filed: December 12, 2022
    Publication date: April 13, 2023
    Inventors: Sara Sandberg, Mattias Andersson, Yufei Blankenship, Amirpasha Shirazinia
  • Publication number: 20230102793
    Abstract: A method of operating a wireless terminal may include transmitting a random access preamble of a random access procedure from the wireless terminal to a node of a radio access network. After transmitting the random access preamble, a random access response of the random access procedure may be received from the node of the radio access network, with the random access response including an Uplink grant for a Message 3 uplink communication of the random access procedure. The UL grant may include a time domain configuration associated with the Message 3 uplink communication. The time domain configuration may include a repetition factor that defines a number of repetitions across subframes for the Message 3 uplink communication, and/or Transmission Time Interval information for the Message 3 uplink communication. Related wireless terminals and base stations are also discussed.
    Type: Application
    Filed: December 7, 2022
    Publication date: March 30, 2023
    Inventors: Tuomas TIRRONEN, Yufei BLANKENSHIP, Johan BERGMAN, Emre YAVUZ
  • Publication number: 20230087194
    Abstract: According to some embodiments, a method for use in a wireless transmitter of a wireless communication network comprises encoding information bits using a purity check matrix (PCM) and transmitting the encoded information bits to a wireless receiver. The parity check matrix (PCM) is optimized according to two or more approximate cycle extrinsic message degree (ACE) constraints. In some embodiments, a first portion of the PCM is optimized according to a first ACE constraint and a second portion of the PCM is optimized according to a second ACE constraint.
    Type: Application
    Filed: November 28, 2022
    Publication date: March 23, 2023
    Inventors: Sara SANDBERG, Mattias ANDERSSON, Yufei BLANKENSHIP
  • Publication number: 20230080567
    Abstract: The present disclosure described systems and methods for providing OTT services to a UE. An exemplary OTT-providing host computer includes a transceiver, a processor, and memory collective configured to provide the OTT service by initiating transmission of user data to the UE. To transmit the user data from the host computer to the wireless device, a network node sends a first control message for assigning a PDSCH, the first control message comprising a first MCS indication as described. The network node sends to the wireless device a second control message for assigning a PDSCH, the second control message comprising a second MCS indication as described. The network node transmits the user data thereafter.
    Type: Application
    Filed: November 8, 2022
    Publication date: March 16, 2023
    Inventors: Zhipeng Lin, Jingya Li, Robert Baldemair, Yufei Blankenship, Jung-Fu Cheng, Xingqin Lin, Ajit Nimbalker
  • Publication number: 20230069404
    Abstract: According to some embodiments, a wireless device is operating in communication with two or more serving cells wherein at least one serving cell of the two or more serving cells is configured for release 16 reporting of physical downlink control channel (PDCCH) monitoring capabilities. The wireless device performs a method comprising transmitting a first parameter representing a release 16 PDCCH monitoring capability of the wireless device to a network node and determining a maximum number of PDCCH candidates and a maximum number of non-overlapped control channel elements (CCEs) based on a maximum number of release 16 capable serving cells, which is determined based on the transmitted first parameter.
    Type: Application
    Filed: February 12, 2021
    Publication date: March 2, 2023
    Inventors: Kittipong Kittichokechai, Yufei Blankenship
  • Publication number: 20230053430
    Abstract: The present disclosure provides a method in a wireless device, for handling spatial relations for Physical Uplink Control Channel (PUCCH) resources belonging to different PUCCH groups or PUCCH resource configuration groups. The method comprises: receiving, from a network node, a command to activate or deactivate a spatial relation for a PUCCH resource, wherein each PUCCH of the different PUCCH groups is uniquely identified in the command; and performing one of activating and deactivating a spatial relation for the PUCCH resource identified in the command. A wireless device for implementing this method is also provided.
    Type: Application
    Filed: December 15, 2020
    Publication date: February 23, 2023
    Inventors: Helka-Liina Määttänen, Zhenhua Zou, Yufei Blankenship, Mats Folke
  • Patent number: 11588504
    Abstract: A method of producing a set of coded bits from a set of information bits for transmission between a first node and a second node in a wireless communications system, the method comprises generating a codeword vector by encoding the set of information bits with a low-density parity-check code, wherein the codeword vector is composed of systematic bits and parity bits. The method comprises performing circular buffer-based rate matching on the generated codeword vector to produce the coded bits for transmission, wherein the circular buffer-based rate matching comprises puncturing a first plurality of systematic bits.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: February 21, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Mattias Andersson, Yufei Blankenship, Sara Sandberg
  • Patent number: 11569941
    Abstract: A transmitting node determines data for a first service will be transmitted during a time period when data for a second service will be transmitted. The data for the first service requires lower latency than the data for the second service and the data for the first service includes an original set of data for the first service and at least one repetition of the original set of data for the first service. The transmitting node adjusts resources consumed by the data for the first service based on available transmission resources. During the time period the transmitting node then transmits the data for the first service using the adjusted resources while data for the second service is transmitted during the time period.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: January 31, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Zhenhua Zou, Shehzad Ali Ashraf, Yufei Blankenship, Caner Kilinc, Zhan Zhang
  • Publication number: 20230025192
    Abstract: Systems and methods are disclosed herein for determining and using a Transport Block Size (TBS) when two or more Low Density Parity Check (LDPC) base graphs can be used for LPDC coding. In some embodiments, a method comprises determining an approximate TBS for a transport block communicated between a network node and a wireless device via a physical channel transmission, determining a TBS for the transport block based on a smallest entry in a table that is larger than or equal to the approximate TBS, and transmitting or receiving the transport block according to the determined TBS.
    Type: Application
    Filed: September 20, 2022
    Publication date: January 26, 2023
    Inventors: Mattias ANDERSSON, Yufei BLANKENSHIP, Sara SANDBERG
  • Publication number: 20230021623
    Abstract: According to some embodiments, a method performed by a wireless device for decoding physical shared channels (PSCHs) comprises, for a plurality of PSCHs in a transmission time interval, determining a first PSCH of the plurality of PSCHs at least partially overlaps in time with a second PSCH of the plurality of PSCHs. Based on comparison of a common characteristic of the first PSCH and the second PSCH, the method comprises selecting one of the first PSCH and the second PSCH to decode and decoding the selected PSCH.
    Type: Application
    Filed: December 7, 2020
    Publication date: January 26, 2023
    Inventors: Mattias Andersson, Yufei Blankenship, Kittipong Kittichokechai, Ali Behravan
  • Publication number: 20230027932
    Abstract: Systems and methods are described herein that allow information carrying bits of a transmission block to be placed at higher-reliability positions prior to transmission. An exemplary method includes generating a set of payload bits to be encoded for transmission, wherein the set of payload bits includes at least one known bit, interleaving the set of payload bits to generate an interleaved set of payload bits, wherein the interleaved set includes the at least one known bit in a predetermined position in the interleaved set, providing the interleaved set to a cyclic redundancy check (CRC) encoder to generate CRC-interleaved set of payload bits, wherein the CRC-interleaved set includes the at least one known bit in a predetermined position within the CRC-interleaved set, and encoding the CRC-interleaved set for transmission to a wireless device. Associated network nodes and wireless devices are included.
    Type: Application
    Filed: July 19, 2022
    Publication date: January 26, 2023
    Inventors: Anders Wesslén, Dennis Hui, Yufei Blankenship
  • Patent number: 11564258
    Abstract: A method of operating a wireless terminal may include transmitting a random access preamble of a random access procedure from the wireless terminal to a node of a radio access network. After transmitting the random access preamble, a random access response of the random access procedure may be received from the node of the radio access network, with the random access response including an Uplink grant for a Message 3 uplink communication of the random access procedure. The UL grant may include a time domain configuration associated with the Message 3 uplink communication. The time domain configuration may include a repetition factor that defines a number of repetitions across subframes for the Message 3 uplink communication, and/or Transmission Time Interval information for the Message 3 uplink communication. Related wireless terminals and base stations are also discussed.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: January 24, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Tuomas Tirronen, Yufei Blankenship, Johan Bergman, Emre Yavuz
  • Publication number: 20230015550
    Abstract: Methods, a terminal device and a base station for random access procedure are disclosed. According to an embodiment, the terminal device determines a frequency hopping configuration for transmission of one or more physical uplink shared channels (PUSCHs) in a request message for random access. The terminal device transmits the one or more PUSCHs in the request message based on the frequency hopping configuration. The request message at least comprises a physical random access channel (PRACH) preamble and the one or more PUSCHs.
    Type: Application
    Filed: May 22, 2020
    Publication date: January 19, 2023
    Inventors: Zhipeng LIN, Yufei BLANKENSHIP, Robert Mark HARRISON, Jianwei ZHANG
  • Patent number: 11552728
    Abstract: Methods, systems, and apparatus are provided for encoding code blocks for transmission in a wireless communication system. An example encoding method in a wireless communication system includes determining, for one or more code blocks of a transport block, that at least one of a plurality of criteria is met, wherein the plurality of criteria includes that a coding rate (R) is less than or equal to ¼ or that a transport block size (TBS) is less than or equal to 3824 bits and the R is less than or equal to ?. The one or more code blocks are encoded using low-density parity-check (LDPC) base graph 2, wherein a maximum code block size is 3840 bits. The one or more encoded code blocks are transmitted over the wireless network.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: January 10, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Sara Sandberg, Mattias Andersson, Yufei Blankenship, Amirpasha Shirazinia
  • Publication number: 20220400496
    Abstract: A method, system and apparatus are disclosed for priority indication. In one embodiment, a wireless device is configured to receive a priority indicator associated with a downlink control information, DCI, message, the DCI message being associated with one of an uplink-configured grant, UL-CG, configuration and a downlink-semipersistent assignment, DL-SPS, configuration; and determine a use of the priority indicator associated with the DCI message. In another embodiment, a network node is configured to determine a use of a priority indicator associated with a downlink control information, DCI, message; and send the priority indicator associated with the DCI message according to the determined use, the DCI message being associated with one of an uplink-configured grant, UL-CG, configuration and a downlink-semipersistent assignment, DL-SPS, configuration.
    Type: Application
    Filed: November 6, 2020
    Publication date: December 15, 2022
    Inventors: Majid GERAMI, Jonas FRÖBERG OLSSON, Yufei BLANKENSHIP, Alexey SHAPIN, Kittipong KITTICHOKECHAI, Bikramjit SINGH, Jianwei ZHANG