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: 20230319625
    Abstract: A wireless communication device (412) replicates, at a Radio Link Control (RLC) layer of a protocol stack of the wireless communication device (412), an original packet associated to a particular service to provide one or more replicate packets. Each of the one or more replicate packets is a replication of the original packet. For each packet from among a set of packets consisting of the original packet and at least one of the one or more replicate packets, the wireless communication device (412) generates a transport block that comprises the packet and transmits the transport block to one or more base stations or transmission/reception points, TRPs, via a physical layer of the protocol stack of the wireless communication device (412).
    Type: Application
    Filed: September 1, 2021
    Publication date: October 5, 2023
    Inventors: Ying Sun, Torsten Dudda, Yufei Blankenship, Zhenhua Zou, Siva Muruganathan, Helka-Liina Määttänen
  • Publication number: 20230309109
    Abstract: In one embodiment, a method performed by a wireless communication device comprises receiving a configuration of a first spatial relation or a first Transmission Configuration Indication (TCI) state and a second spatial relation or a second TCI state for an uplink channel and transmitting the uplink channel a number of times in a first set of resources according to the first spatial relation/TCI state and in a second set of resources according to the second spatial relation/TCI state. The method further comprises receiving a Physical Downlink Shared Channel (PDSCH) carrying a Media Access Control (MAC) control element (CE), transmitting a Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) associated with the PDSCH in the uplink channel, and applying the MAC CE command according to a timing that is based on a slot or sub-slot over which a last transmission repetition of the uplink channel is transmitted.
    Type: Application
    Filed: August 6, 2021
    Publication date: September 28, 2023
    Inventors: Shiwei Gao, Yufei Blankenship, Mattias Frenne, Siva Muruganathan, Jianwei Zhang
  • Publication number: 20230300834
    Abstract: A method performed by a wireless device for determining a start symbol of a plurality of PDSCH transmission occasions using a relative reference symbol includes: receiving an indication that includes indications: that enable/disable the use of the relative reference symbol; the offset between the last symbol of a first PDSCH and the first symbol of a second PDSCH; that there are multiple PDSCH transmission occasions; and that a symbol of the first transmission occasion and length corresponding to all transmission occasions; and determining the symbol at which each of the plurality of PDSCH transmission occasions end which will be used to determine the start symbol of the next PDSCH transmission occasion. In this way, the wireless device behavior is defined on how many PDSCH repetitions the wireless device can receive when the use of the new relative reference for the starting symbol of the first PDSCH repetition is enabled.
    Type: Application
    Filed: October 30, 2020
    Publication date: September 21, 2023
    Inventors: Yufei Blankenship, Mattias Frenne, Kittipong Kittichokechai, Siva Muruganathan, Jianwei Zhang
  • Publication number: 20230299900
    Abstract: Systems and methods are disclosed for Physical Uplink Control Channel enhancement. In one embodiment, a method performed by a user equipment in the wireless communication network that includes multiple Transmission and Receiving Points (TRPs), each associated with a spatial relation or a Transmission Configuration Indication (TCI) state, includes receiving, from a base station, a configuration of a first and second spatial relations or a configuration of a first and second TCI states for an uplink channel resource, and an indication of N transmission repetitions of the uplink channel. Also, the method includes transmitting the uplink channel in N consecutive sub-slots, and applying the first spatial relation or the first TCI state to the uplink channel transmission repetitions in a first subset of the sub-slots and applying the second spatial relation or the second TCI state to the uplink channel transmission repetitions in a second subset of the sub-slots.
    Type: Application
    Filed: August 6, 2021
    Publication date: September 21, 2023
    Inventors: Shiwei Gao, Yufei Blankenship, Mattias Frenne, Siva Muruganathan, Jianwei Zhang
  • Publication number: 20230299891
    Abstract: Systems and methods of the present disclosure are directed to a method performed by a wireless communication device for providing Hybrid Automatic Repeat Request (HARQ) feedback. The method includes dropping a first transmission that was to comprise a HARQ-Acknowledgement (HARQ-ACK) codebook that comprises HARQ-ACK feedback information for one or more first Physical Downlink Shared Channel (PDSCH) transmissions. The method includes transmitting a second transmission in which at least a portion of the dropped HARQ-ACK codebook is combined with other HARQ-ACK feedback information for one or more second PDSCH transmissions.
    Type: Application
    Filed: July 29, 2021
    Publication date: September 21, 2023
    Inventors: Kittipong Kittichokechai, Bikramjit Singh, Zhenhua Zou, Sorour Falahati, Reem Karaki, Yufei Blankenship, Mattias Andersson
  • Patent number: 11764814
    Abstract: Methods are proposed herein to perform rate matching for polar codes via circular buffering of the polar encoded bits. Embodiments are directed to methods of operation of a transmitting node in a wireless system including performing polar encoding of a set of information bits in accordance with a polar sequence of length NB to thereby generate NB coded bits. The method can further include interleaving the coded bits to thereby provide an interleaved coded bit sequence, and storing the interleaved coded bit sequence into a circular buffer of length NB. According to certain embodiments, the method can further include extracting N coded bits for transmission from the circular buffer. N can be greater than, equal to, or less than NB.
    Type: Grant
    Filed: February 3, 2022
    Date of Patent: September 19, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Dennis Hui, Yufei Blankenship
  • Publication number: 20230291510
    Abstract: A method, system and apparatus for methods and algorithms of data multiplexing at a physical (PHY) layer. A network node is configured to schedule using a single downlink control information, DCI, message a first transmission with repetition of a first transport block, TB, and a second transmission with repetition of a second TB, the repetitions of the first and second TBs being mapped to non-overlapping time-domain resources and the repetitions of first and second TBs being mapped to a same physical resource block, PRB, set; and trigger the first transmission with repetition of the first TB and the second transmission with repetition of the second TB based on the single DCI scheduling. A wireless device, WD, is configured to receive the single DCI message; and process the repetitions of the first TB and the repetitions of the second TB based at least in part on the single DCI scheduling.
    Type: Application
    Filed: August 6, 2021
    Publication date: September 14, 2023
    Inventors: Bikramjit SINGH, Alexey SHAPIN, Yufei BLANKENSHIP, Mattias ANDERSSON
  • Publication number: 20230291508
    Abstract: According to some embodiments, a method performed by a wireless device for transmitting a Type-3 hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook comprises receiving downlink control information (DCI) requesting a Type-3 HARQ-ACK codebook, wherein the DCI request is of a DCI format other than DCI format 1_1 for a physical downlink shared channel (PDSCH) transmission, and based on the DCI request, transmitting the Type-3 HARQ-ACK codebook to a network node.
    Type: Application
    Filed: July 29, 2021
    Publication date: September 14, 2023
    Inventors: Yufei Blankenship, Bikramjit Singh, Jonas Fröberg Olsson, Kittipong Kittichokechai, Sorour Falahati, Reem Karaki, Zhenhua Zou
  • Publication number: 20230283415
    Abstract: According to some embodiments, a method performed by a wireless device for transmitting a Type-3 hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook comprises receiving downlink control information (DCI) requesting a Type-3 HARQ-ACK codebook and an indication of a priority associated with the Type-3 HARQ-ACK codebook, and based on the DCI request and priority indication, transmitting the Type-3 HARQ-ACK codebook to a network node.
    Type: Application
    Filed: July 29, 2021
    Publication date: September 7, 2023
    Inventors: Yufei Blankenship, Bikramjit Singh, Jonas Fröberg Olsson, Kittipong Kittichokechai, Zhenhua Zou, Sorour Falahati, Reem Karaki, Mattias Andersson
  • Publication number: 20230275636
    Abstract: A method in a user equipment, UE, for reporting channel state information, CSI, to a network includes determining a number of subbands of a bandwidth part, BWP, to report CSI. The method further includes determining a CSI computation time including a CSI computation delay requirement. The method further includes performing CSI estimation for a plurality of the number of subbands based on the CSI computation time. The method further includes reporting the CSI report for at least one of the number of subbands. Analogous UEs, computer programs and computer program products are also provided.
    Type: Application
    Filed: July 27, 2021
    Publication date: August 31, 2023
    Inventors: Bikramjit SINGH, Jonas FRÖBERG OLSSON, Yufei BLANKENSHIP, Mattias ANDERSSON, Kittipong KITTICHOKECHAI, Zhenhua ZOU, Siva MURUGANATHAN, Shiwei GAO
  • Publication number: 20230269612
    Abstract: Systems and methods described herein provide Channel State Information (CSI) computation with ultra-low latency, enabling such CSI computation to be used for more Ultra-Reliable Low-Latency Communication (URLLC) use cases. The solutions proposed herein can apply the ultra-low latency timing requirement to the following URLLC scenarios: CSI computation for URLLC schemes that involve multiple Transmission/Reception Point (TRP) transmissions; CSI computation for URLLC while at least one CPU is occupied for another CSI computation (i.e., when L>0); and CSI computation for URLLC with more than 4 CSI-RS ports used for channel measurements. As a result, the solutions proposed reduce the CSI reporting latency which helps in improving the reliability of URLLC Downlink (DL) transmissions.
    Type: Application
    Filed: July 29, 2021
    Publication date: August 24, 2023
    Inventors: Siva Muruganathan, Yufei Blankenship, Shiwei Gao
  • Patent number: 11728829
    Abstract: A method of decoding a polar coded signal includes determining channel reliabilities for a plurality of polar coded bit channels in a data communication system including a plurality of frozen bit channels and non-frozen bit channels, selecting a frozen bit channel, calculating a likelihood value for a bit estimate associated with the frozen bit channel, generating a hard decision value for the bit estimate in response to the likelihood value, comparing the hard decision value for the bit estimate to a known value of a frozen bit transmitted on the frozen bit channel, in response to determining that the hard decision value for the bit estimate differs from the known value of the frozen bit transmitted on the frozen bit channel, updating an accumulated uncertainty, comparing the accumulated uncertainty to a threshold, and determining that a decoding error has occurred in response to the comparison.
    Type: Grant
    Filed: April 11, 2022
    Date of Patent: August 15, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Dennis Hui, Yufei Blankenship
  • Publication number: 20230254064
    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: Application
    Filed: January 27, 2023
    Publication date: August 10, 2023
    Inventors: Zhenhua ZOU, Shehzad Ali ASHRAF, Yufei BLANKENSHIP, Caner KILINC, Zhan ZHANG
  • Publication number: 20230231605
    Abstract: A method of operating a user equipment, UE, according to some embodiments includes performing (202) a channel measurement on a measurement resource for channel measurement, performing (204) two or more interference measurements on two or more measurement resources for interference measurement, for each interference measurement, determining (206) quality values associated with the interference measurement and the channel measurement, determining (208) a statistical measure based on the quality values, and transmitting (210) the statistical measure to a network node in a channel state information, CSI, report.
    Type: Application
    Filed: October 22, 2020
    Publication date: July 20, 2023
    Inventors: Jonas Fröberg Olsson, Erik Eriksson, Martin Hessler, Niklas Andgart, Yufei Blankenship, Bikramjit Singh, Mattias Andersson, Alexey Shapin, Kittipong Kittichokechai
  • Patent number: 11700618
    Abstract: Systems and methods are disclosed herein that relate to transmitting and receiving a transmission when there is a collision between the transmission and reserved resource elements. In some embodiments, a radio access node for a cellular communications network is disclosed, wherein the radio access node comprises a transceiver, a processor, and memory storing instructions executable by the processor whereby the radio access node is operable to transmit, via the transceiver, a downlink transmission to a wireless device using one or more Physical Resource Blocks (PRBs) that comprise reserved Resource Elements (REs) by puncturing the downlink transmission at positions of the reserved REs. In some embodiments, the downlink transmission is an Enhanced Physical Downlink Control Channel (EPDCCH) transmission or a Physical Downlink Shared Channel (PDSCH) transmission. Further, in some embodiments, the reserved REs are REs utilized for one or more CSI-RSs.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: July 11, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Yufei Blankenship, Mattias Frenne
  • Patent number: 11695497
    Abstract: Embodiments of a method performed by a wireless device for receiving and interpreting a Downlink Control Information (DCI) message having a flexible DCI format and embodiments of a corresponding wireless device are disclosed. In some embodiments, a method performed by a wireless device for receiving and interpreting a DCI message comprises receiving a DCI message from a base station and obtaining a DCI formatting indicator for the DCI message. The DCI formatting indicator is an indicator related to a flexible-interpretation DCI format, wherein the flexible-interpretation DCI format is a DCI format for which bits are interpreted differently based on the DCI formatting indicator. The method further comprises interpreting the DCI message in accordance with the DCI formatting indicator. Embodiments of a method performed by a base station for transmitting a DCI message having a flexible DCI format and embodiments of a corresponding base station are disclosed.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: July 4, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Jonas Fröberg Olsson, Pål Frenger, Kittipong Kittichokechai, Yufei Blankenship
  • Publication number: 20230199749
    Abstract: A method, system and apparatus are disclosed. In one or more embodiments, a network node is provided. The network node includes processing circuitry configured to: determine adapted configured grant, CG, control information based at least on CG control information, and signal the adapted CG control information for configuring transmission on at least one CG resource.
    Type: Application
    Filed: May 21, 2021
    Publication date: June 22, 2023
    Inventors: Majid GERAMI, Bikramjit SINGH, Reem KARAKI, Yufei BLANKENSHIP
  • 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