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: 20220394753
    Abstract: A method performed by a wireless device comprises receiving (700) a first grant that allocates first radio resources for use by the wireless device and a second grant that allocates second radio resources for use by the wireless device, where the first radio resources partially overlap in time with the second radio resources. The method further comprises splitting (710) the first grant into a first non-overlapping grant and a first overlapping grant, where the first non-overlapping grant allocates a portion of the first radio resources which do not overlap in time with the second radio resources and the first overlapping grant allocates another portion of the first radio resources which overlap in time with the second radio resources.
    Type: Application
    Filed: November 7, 2020
    Publication date: December 8, 2022
    Inventors: Abdulrahman Alabbasi, Kittipong Kittichokechai, Yufei Blankenship
  • Publication number: 20220386336
    Abstract: A method and network node for configuring a WD, to perform uplink transmissions using an uplink configured grant, UL-CG, or a dynamic grant is provided. The network node signals by radio resource control, RRC, signaling to the WD, a time domain resource assignment, TDRA, table for the uplink transmissions. The network node signals further signals to the WD, an indication of a particular repetition factor to be used by the WD to determine when to perform the uplink transmissions.
    Type: Application
    Filed: October 7, 2020
    Publication date: December 1, 2022
    Inventors: Majid GERAMI, Bikramjit SINGH, Niklas ANDGART, Yufei BLANKENSHIP, Jonas FRÖBERG OLSSON, Mattias ANDERSSON, Jianwei ZHANG
  • Patent number: 11515893
    Abstract: According to some embodiments, a method use in a wireless transmitter of a wireless communication network comprises encoding information bits using a parity 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 that portion of the PCM is optimized according to a first ACE constraint and a second portion of PCM is optimized according to a second ACE constraint.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: November 29, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Sara Sandberg, Mattias Andersson, Yufei Blankenship
  • Publication number: 20220377706
    Abstract: A method by a wireless device includes determining a value of a Sounding Reference Signal (SRS) request field size. The wireless device receives downlink control information (DCI) from a network node. The DCI is received according to a format. The wireless device selects a SRS resource set based on the format of the DCI and the value of the SRS request field size.
    Type: Application
    Filed: November 3, 2020
    Publication date: November 24, 2022
    Inventors: Kittipong Kittichokechai, Yufei Blankenship, Mattias Andersson
  • Publication number: 20220376820
    Abstract: A system and method for selecting a number of cyclic redundancy check bits in a communication system. In one embodiment, an apparatus operating in a communication system is configured to receive scheduling information from the communication system, and determine an information block length (K) and/or code rate (R) for a code block including a sequence of data bits from the scheduling information. The apparatus is further configured to determine a number of cyclic redundancy check (CRC) bits as a function of the information block length (K) and/or code rate (R) for the code block.
    Type: Application
    Filed: December 22, 2017
    Publication date: November 24, 2022
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sara SANDBERG, Mattias ANDERSSON, Yufei BLANKENSHIP, Amirpasha Shirazinia
  • Patent number: 11497035
    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: Grant
    Filed: August 27, 2021
    Date of Patent: November 8, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Zhipeng Lin, Jingya Li, Robert Baldemair, Yufei Blankenship, Jung-Fu Cheng, Xingqin Lin, Ajit Nimbalker
  • Patent number: 11497022
    Abstract: A method in a network node includes communicating, over a narrowband Internet of Things downlink, a first message to a first wireless device during repetition periods of at least a first time frame and a second time frame of a plurality of time frames of a transmission time of a narrowband physical downlink control channel (NB-PDCCH) or a narrowband physical downlink shared channel (NB-PDSCH). Each time frame of the plurality of time frames includes a repetition period and a gap. The method also includes communicating a second message to a second wireless device during a gap of the first time frame.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: November 8, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Hazhir Shokri Razaghi, Ansuman Adhikary, Johan Bergman, Yufei Blankenship, Asbjörn Grövlen, Xingqin Lin, Yutao Sui, Yi-Pin Eric Wang
  • Patent number: 11476873
    Abstract: Methods and systems described herein are directed to encoding information bits for transmission. The methods can include receiving a set of information bits (900) and determining a set of parity check bits (910). The set of information bits is concatenated with the set of parity check bits (920), and the information bits are polar encoded into a set of information bits and frozen bits (930). The encoded set of information bits is transmitted to a wireless receiver (940). In particular embodiments, each parity check bit in the set of parity check bits is the binary sum of the values of all bits in front of it. Other embodiments include generating a set of parity check bits based on a systematic block code on the least reliable bits of the set of information bits. The methods and systems described herein may be applied to 3GPP 5G mobile communication systems.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: October 18, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Dennis Hui, Yufei Blankenship, Michael Breschel
  • Publication number: 20220330254
    Abstract: Systems and methods are disclosed herein for determining and indicating antenna ports in Downlink Control Information (DCI). In one embodiment, a method performed by a wireless communication device comprises receiving a configuration comprising a Demodulation Reference Signal (DMRS) configuration and an antenna port field configuration for an antenna port field in a Downlink Control Information (DCI) format. The method further comprises receiving a DCI of the DCI format and determining a size of an antenna port field and a DMRS port table for interpreting a value comprised in the antenna port field based on the DMRS and antenna port field configurations, the determined DMRS port table being a subset of a master DMRS port table. The method further comprises determining a DMRS port(s) used for a corresponding physical channel based on the size of the antenna port field, the DMRS port table, and/or the value of the antenna port field.
    Type: Application
    Filed: October 5, 2020
    Publication date: October 13, 2022
    Inventors: Shiwei Gao, Yufei Blankenship, Sebastian Faxér, Mattias Frenne, Siva Muruganathan
  • Publication number: 20220329399
    Abstract: Embodiments of a method performed by a wireless device are disclosed. In one embodiment, the method comprises providing physical downlink control channel capability information to a base station, where the physical downlink control channel capability information comprises one or more candidate values comprising one or more candidate (X,Y) values or one or more candidate (X, Y, ?) values, where X is a minimum time separation in Orthogonal Frequency Division Multiplexing (OFDM) symbols between the starts of two physical downlink control channel monitoring spans, Y is a maximum length of a physical downlink control channel monitoring span in terms of OFDM symbols, and ? is subcarrier spacing. The method further comprises determining a maximum value. The maximum value is either a maximum number of non-overlapping Control Channel Elements (CCEs) for channel estimation or a maximum number of blind decodes for physical downlink control channel monitoring, per physical downlink control channel monitoring span.
    Type: Application
    Filed: August 4, 2020
    Publication date: October 13, 2022
    Inventors: Kittipong Kittichokechai, Yufei Blankenship, Mattias Andersson
  • Publication number: 20220321282
    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: Application
    Filed: June 17, 2022
    Publication date: October 6, 2022
    Inventors: Jung-Fu Cheng, Mattias Andersson, Yufei Blankenship, Stefan Parkvall, Sara Sandberg
  • Publication number: 20220322362
    Abstract: Systems and methods for multi-Transmission Reception Point (TRP) transmission for downlink Semi-Persistent Scheduling (SPS) are provided. In some embodiments, a method performed by a wireless device for configuring one or more wireless communications settings includes determining multiple wireless communications configurations; and simultaneously activating at least two of the wireless communications configurations such that the at least two of the plurality of wireless communications configurations include configuration of one or more of a low latency and/or reliability scheme and one or more properties related to the low latency and/or reliability scheme. This enables multi-TRP based reliability schemes for the case when multiple downlink SPS configurations can be simultaneously activated.
    Type: Application
    Filed: May 1, 2020
    Publication date: October 6, 2022
    Inventors: Siva Muruganathan, Shiwei Gao, Yufei Blankenship, Mattias Frenne
  • Publication number: 20220312437
    Abstract: Systems and methods for scheduling request (SR) prioritization are disclosed herein. In one embodiment, a method performed by a wireless device for prioritized SR transmission comprises transmitting, to a base station, a SR for data generated on a particular logical channel on a Physical Uplink Control Channel (PUCCH) resource in accordance with an associated SR configuration, wherein a SR priority of the SR is indicated by one or more physical layer properties of the PUCCH resource, in accordance with a mapping between the one or more physical layer properties of the PUCCH and the SR priority.
    Type: Application
    Filed: May 28, 2020
    Publication date: September 29, 2022
    Inventors: Ali Behravan, Jonas Fröberg Olsson, Mattias Andersson, Kittipong Kittichokechai, Zhenhua Zou, Yufei Blankenship
  • Publication number: 20220311556
    Abstract: A method and a wireless device for determining out of order (OOO) operation are disclosed. According to one aspect, the processing circuitry is configured to, when at least one physical downlink shared channel (PDSCH) is subject to semi-persistent scheduling (SPS) determine an OOO condition that is independent of a relative timing of physical downlink control channel (PDCCH) signaling, the OOO condition being one of data transmission overlap and out-of-order hybrid automatic repeat request, HARQ, feedback. A method and wireless device for codebook construction are disclosed. According to one aspect, a method includes constructing a codebook by combining a first codebook and a second codebook, the first codebook being configured for hybrid automatic repeat request (HARQ) acknowledgment (ACK) response of dynamically scheduled physical shared channels and the second codebook being configured for HARQ-ACK response of semi-persistently scheduled (SPS) physical shared channels.
    Type: Application
    Filed: June 16, 2020
    Publication date: September 29, 2022
    Inventors: Bikramjit SINGH, Yufei BLANKENSHIP, Alexey SHAPIN, Henrik ENBUSKE, Zhenhua ZOU, John Walter DIACHINA, Jianwei ZHANG
  • Patent number: 11451333
    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 a Transport Block Size (TBS) for a transport block communicated between a network node and a wireless device via a physical channel transmission using a formula such that code block segmentation of the transport block results in equal sized code blocks independent of which of two different LDPC base graphs is used for the code block segmentation. The method further comprises transmitting or receiving the transport block according to the determined TBS.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: September 20, 2022
    Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Mattias Andersson, Yufei Blankenship, Sara Sandberg
  • Publication number: 20220295479
    Abstract: A method, network node and wireless device for resolving physical uplink control channel (PUCCH) collisions in subslots. According to one aspect, a wireless device (WD) is configured to remove a candidate physical uplink control channel, PUCCH, resource from a subslot to resolve an overlap of PUCCH resources in a slot. According to another aspect, a network node is configured to receive a physical uplink control channel, PUCCH, transmission, a PUCCH resource used for the PUCCH transmission being based at least in part on a removal of a candidate PUCCH resource from a subslot to resolve an overlap of PUCCH resources in a slot.
    Type: Application
    Filed: August 6, 2020
    Publication date: September 15, 2022
    Inventors: Ali BEHRAVAN, Majid GERAMI, Sorour FALAHATI, Bikramjit SINGH, Yufei BLANKENSHIP, Robert BALDEMAIR
  • Patent number: 11444732
    Abstract: Systems and methods are disclosed herein that relate wireless device positioning based on cell portion specific Positioning Reference Signals (PRSs) by multiple Transmit Points (TPs) in a shared cell. In some embodiments, a method of operation of a TP in a cellular communications network is provided. The TP is one of multiple of non-co-located TPs of a shared cell that has a shared cell identifier. The method of operation of the TP comprises transmitting a PRS having at least one parameter that is a function of a cell portion identifier of the TP, where the at least one parameter comprises a frequency-shift of the PRS, a portion of a system bandwidth in which the PRS is transmitted, and/or a PRS sequence used for the PRS. By transmitting cell-portion-specific PRSs, the TPs in the shared cell enable wireless device positioning based on PRSs transmitted by the non-co-located TPs.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: September 13, 2022
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Yufei Blankenship, Meng Wang
  • Publication number: 20220279546
    Abstract: There is disclosed a method of operating a wireless device in a radio access network, the wireless device being configured with a slot configuration according to which a slot has multiple subslots. The method includes transmitting acknowledgement information reporting on subject transmission in a subslot based on a received timing indication indicating a subslot for transmitting the acknowledgement information, the timing indication being indicative of a subslot of a set of available subslots. Related methods and devices are also disclosed.
    Type: Application
    Filed: July 1, 2020
    Publication date: September 1, 2022
    Inventors: Axel GUTHMANN, Robert BALDEMAIR, Sorour FALAHATI, Yufei BLANKENSHIP
  • Publication number: 20220279547
    Abstract: There is disclosed a method of operating a wireless device in a radio access network, the wireless device being configured with a slot configuration according to which a slot has multiple subslots. The method includes transmitting acknowledgement information reporting on subject transmission in a subslot based on a received timing indication indicating a subslot number for transmitting the acknowledgement information, and based on a subslot offset. There are also disclosed related methods and devices.
    Type: Application
    Filed: August 26, 2019
    Publication date: September 1, 2022
    Inventors: Sorour FALAHATI, Robert BALDEMAIR, Yufei BLANKENSHIP
  • Publication number: 20220271873
    Abstract: Systems and methods for constructing a Hybrid Automatic Repeat Request (HARQ) codebook are provided. In some embodiments, a method performed by a User Equipment (UE) includes constructing a dynamic HARQ codebook with a first set of HARQ ACK bits being associated with dynamically scheduled Physical Downlink Shared Channels (PDSCHs) and a second set of HARQ ACK bits being associated with Semi-Persistent Scheduling (SPS) PDSCHs; and ordering the second set of HARQ ACK bits according to the SPS PDSCH index. In some embodiments, the UE receives, from a network node, a plurality of downlink SPS PDSCHs, each with a SPS configuration index and the UE sends, to the network node, HARQ ACK feedback associated with the SPS PDSCHs. In this way, HARQ ACK feedback is enabled for multiple DL SPS configured for a UE with possibly overlapping time domain resource allocations.
    Type: Application
    Filed: August 14, 2020
    Publication date: August 25, 2022
    Inventors: Shiwei Gao, Yufei Blankenship, Mattias Frenne, Siva Muruganathan