Patents by Inventor Yi-Pin Eric Wang

Yi-Pin Eric Wang 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: 11229065
    Abstract: A communications network is being accessed by a wireless device associated with a coverage class selected from a set of coverage classes. The wireless device performs a method comprising initiating network access to the communications network by transmitting a preamble sequence for random access on a physical random access channel during a starting opportunity defined by the coverage class of the wireless device. Each coverage class may be associated with a unique number of repetitions of the preamble sequence transmission.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: January 18, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (FUEL)
    Inventors: Xingqin Lin, Ansuman Adhikary, Johan Mikael Bergman, Yufei Blankenship, Asbjörn Grövlen, Hazhir Shokri Razaghi, Yutao Sui, Yi-Pin Eric Wang
  • Publication number: 20220007267
    Abstract: A method performed by a network node (160) includes serving a cell area by a first physical network node for a first time duration. The first physical network node uses an identifier of a logical network node. For a second time duration, the cell area is served by a second physical network node. The second physical network node uses the identifier of the logical network node. The first physical network node serves the cell area with a first frequency band and the second physical network node serves the cell area with a second frequency band.
    Type: Application
    Filed: October 14, 2019
    Publication date: January 6, 2022
    Inventors: Helka-Liina Maattanen, Henrik Rydén, Xingqin Lin, Yi-Pin Eric Wang, Gino Luca Masini, Stafan Rommer, Björn Hofström, Jonas Sedin
  • Patent number: 11218281
    Abstract: Embodiments herein disclose e.g. a method performed by a wireless device (10) for handling communication for the wireless device in a second wireless communication network. The second wireless communication network coexists with a first wireless communication network on a same bandwidth in frequency, wherein the first wireless communication network applies a first shift in frequency in uplink transmissions. The wireless device receives from a radio network node (12,13), an indication indicating application of a second shift in frequency to uplink transmissions in case the second wireless communication network uses Frequency Division Duplex (FDD). The wireless device further applies the second shift in frequency to uplink transmissions, wherein the second shift defines a shift in frequency to a subcarrier relative to a subcarrier grid of the second wireless communication network or a shift in frequency to the subcarrier grid of the second wireless communication network.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: January 4, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Robert Baldemair, Johan Bergman, Erik Dahlman, Olof Liberg, Stefan Parkvall, Yi-Pin Eric Wang
  • Publication number: 20210399797
    Abstract: A wireless device is operable to communicate with a network node of a communications network via a non-terrestrial communication path that includes satellites and satellite gateways. The wireless device determines that communication between the wireless device and the network node will experience a communication interrupting transition during a transition period in which the non-terrestrial communication path between the wireless device and the network node will be interrupted. The wireless device adjusts a PHY layer procedure of the wireless device to mitigate switching problems with one of the of satellites during and/or after the interruption.
    Type: Application
    Filed: October 7, 2019
    Publication date: December 23, 2021
    Inventors: Talha Khan, Olof Liberg, Helka-Liina Määttänen, Yi-Pin Eric Wang, Xingqin Lin
  • Publication number: 20210385663
    Abstract: In one aspect, a method for communicating in a wireless communication network includes transmitting or receiving (402) using an LTE-M carrier within the bandwidth of an NR carrier such that the LTE-M carrier overlaps at least a portion of NR guard band. The transmitting or receiving may be subject to aligning subcarriers in LTE-M and NR on the same grid and subject to raster placement. The LTE-M carrier may be positioned within the NR carrier so as to minimize the number of NR resource blocks occupied by the LTE-M carrier.
    Type: Application
    Filed: November 1, 2019
    Publication date: December 9, 2021
    Inventors: Mohammad Mozaffari, Yi-Pin Eric Wang, Johan Bergman
  • Publication number: 20210377085
    Abstract: Systems and methods for selecting subcarriers to be used for sub-Physical Resource Block (PRB) transmission and, in some embodiments, for mapping Demodulation Reference Signals (DMRS) to resources on the selected subcarriers are disclosed. In some embodiments, a method of operation of a radio node for providing sub-PRB transmission comprises selecting two adjacent subcarriers from a set of three allocated subcarriers that are allocated for a sub-PRB transmission that uses Single Carrier Frequency Division Multiple Access (SC-FDMA) Pi/2 Binary Phase Shift Keying (BPSK) modulation using only two adjacent subcarriers out of the set of three allocated subcarriers with Discrete Fourier Transform (DFT) spread length of 2. In some embodiments, the selection is such that the selected adjacent subcarriers varies, e.g., from one cell to another. In doing so, interference is distributed.
    Type: Application
    Filed: October 30, 2018
    Publication date: December 2, 2021
    Inventors: Yi-Pin Eric Wang, Anders Eriksson, Johan Bergman, Chunhui Zhang, Gerardo Agni Medina Acosta
  • Patent number: 11166208
    Abstract: A method for managing an unmanned aerial vehicle (UAV) is described. The method may include receiving flight plan information describing a flight path of the UAV; generating one or more cell lists based on the flight plan information; and transmitting the one or more cell lists to a source cell in a wireless network in which the UAV is currently operating, wherein the one or more cell lists are used in a handover procedure between the source cell that the UAV is currently connected to and a target cell that the UAV will connect to after completing the handover procedure.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: November 2, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Attila Takács, Ravi Manghirmalani, Heikki Mahkonen, Yi-Pin Eric Wang, Xingqin Lin
  • Publication number: 20210336731
    Abstract: A method performed by a network node (260, 500) in a wireless communications system (200) is disclosed. The method comprises generating (401) a time-continuous baseband signal by applying a phase compensation that removes a physical resource block (PRB)-dependent phase rotation on a subcarrier. The method comprises converting (402) the generated time-continuous baseband signal into a radio frequency signal. The method comprises transmitting (403) the radio frequency signal to a wireless device over a radio interface.
    Type: Application
    Filed: May 2, 2019
    Publication date: October 28, 2021
    Inventors: Olof Liberg, David Sugirtharaj, Yi-Pin Eric Wang
  • Patent number: 11159949
    Abstract: A method and network node for providing support for frequency-overlapping carriers among a first radio access technology, RAT, and a second RAT is provided. Second RAT information to signal to the first RAT wireless device is determined. The second RAT information configured to allow the first RAT wireless device to determine, at a resource element level, resources reserved for second RAT transmissions. The second RAT information is caused to be communicated to the first RAT wireless device.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: October 26, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Robert Baldemair, Johan Bergman, Erik Dahlman, Olof Liberg, Stefan Parkvall, Yi-Pin Eric Wang
  • Publication number: 20210314117
    Abstract: A wireless device (12) is configured for use in a wireless communication system (10). The wireless device (12) is configured to receive signaling (16) from a network node (14). The signaling (16) in some embodiments indicates that a reference signal (20) is configured to be transmitted before and/or during every L occurrence of a physical downlink control channel search space (18), wherein L?2. In other embodiments, the signaling (16) indicates that a reference signal (20) is configured to be transmitted before and/or during every K discontinuous reception, DRX, cycle (22), wherein K?2.
    Type: Application
    Filed: August 8, 2019
    Publication date: October 7, 2021
    Inventors: Yi-Pin Eric Wang, Kazuyoshi Uesaka, Santhan Thangarasa, Ritesh Shreevastav, Yutao Sui, Olof Liberg
  • Publication number: 20210288853
    Abstract: According to certain embodiments, a method in a wireless device includes generating a signal comprising repeating segments for transmission in a subslot duration transmission time interval (TTI) to a network node. The signal comprising the repeating segments is transmitted to the network node in the subslot duration TTI.
    Type: Application
    Filed: February 2, 2018
    Publication date: September 16, 2021
    Inventors: Marten Sundberg, Daniel LARSSON, Miguel LOPEZ, Yi-Pin Eric WANG, Gustav WIKSTRÖM
  • Patent number: 11108525
    Abstract: A method in a user equipment is disclosed. The method comprises generating a narrowband random access preamble for a narrowband random access procedure, the narrowband random access preamble comprising a Zadoff-Chu sequence. The method comprises transmitting, to a network node, the generated narrowband random access preamble via a narrowband physical random access channel (PRACH) according to a narrowband PRACH format, wherein the narrowband PRACH is frequency multiplexed with a physical uplink shared channel (PUSCH) and comprises: at least one narrowband PRACH slot having a narrowband PRACH slot duration; and a narrowband PRACH period.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: August 31, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Xingqin Lin, Ansuman Adhikary, Niklas Johansson, Yi-Pin Eric Wang
  • Publication number: 20210227543
    Abstract: A method performed by a first network node operating in a wireless communications network is described herein. The first network node initiates sending a first indication to a first wireless device operating in the wireless communications network using NB-IoT. The first indication indicates that a first carrier, the first carrier being a standalone Narrow Band-Internet of Things, NB-IoT, carrier operating within a New Radio, NR, carrier, is: a) deployed in one of: a guardband mode and an inband mode, and b) shifted away by a frequency offset from a frequency channel raster grid used by the first wireless device.
    Type: Application
    Filed: February 1, 2019
    Publication date: July 22, 2021
    Inventors: Yi-Pin Eric WANG, Yutao SUI, Olof LIBERG
  • Patent number: 11038648
    Abstract: A method of a base station to transmit information on an ancillary channel includes encoding a set of bits from input information as a codeword, selecting a subset of active antennas that map to the codeword, and transmitting at least one main channel payload on each antenna of the selected subset of active antennas with one of a plurality of different dedicated pilot signals associated with each respective one of the antennas of the selected subset of active antennas.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: June 15, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ali S. Khayrallah, Robert Baldemair, Bo Hagerman, Yi-Pin Eric Wang
  • Patent number: 10985814
    Abstract: A block coding method and system for improving the reliability of Channel Quality Indicators (CQI) and Antenna Weight Indicators (AWI) reporting, A user terminal first generates 8-bit CQI and 2-bit AWI. A codeword generator produces a codeword responsive to these 10 CQI/AWI bits using a codebook or a generator matrix of a (20,10,6) code. The (20,10,6) code has a minimum Hamming distance of 6. The encoded codeword is transmitted to a receiver for decoding utilizing an identical (20,10,6) codebook.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: April 20, 2021
    Inventors: Jung-Fu Cheng, Yi-Pin Eric Wang, Stephen Grant
  • Publication number: 20210112606
    Abstract: A wireless communication device (14) (e.g., a user equipment) in a wireless communication system (10) is configured for transmitting a random access preamble signal (16). The wireless communication device (14) in particular is configured to generate a random access preamble signal (16) that comprises multiple symbol groups (18), with each symbol group (18) on a single tone during a different time resource, according to a frequency hopping pattern that hops the random access preamble signal (16) a fixed frequency distance at one or more symbol groups (18) and hops the random access preamble signal (16) a pseudo random frequency distance at one or more other symbol groups (18). Each symbol group (18) comprises one or more symbols. The wireless communication device (14) is also configured to transmit the random access preamble signal (16).
    Type: Application
    Filed: December 22, 2020
    Publication date: April 15, 2021
    Inventors: Xingqin Lin, Ansuman Adhikary, Johan Bergman, Yufei Blankenship, Asbjörn Grövlen, Hazhir Shokri Razaghi, Yutao Sui, Yi-Pin Eric Wang
  • Publication number: 20210099944
    Abstract: A technique for transmitting system information for a time-division duplex, TDD, communication in a radio access network, RAN, is described. As to a method aspect of the technique, a master information block, MIB, is transmitted on an anchor carrier (602 1) of the TDD communication in the RAN. The MIB is indicative of a spectral resource (602-1; 602-2) allocated to a system information block, SIB, of the TDD communication in the RAN. The SIB is transmitted on the spectral resource (602-1; 602-2) indicated in the MIB.
    Type: Application
    Filed: December 18, 2017
    Publication date: April 1, 2021
    Inventors: Andreas Höglund, Xingqin Lin, Yuhang Liu, Gerardo Agni Medina Acosta, Ritesh Shreevastav, Yutao Sui, Yi-Pin Eric Wang, Stefan Wänstedt
  • Publication number: 20210091365
    Abstract: A user equipment is configured for operation in a narrowband wireless communication system. The user equipment is configured to detect receipt of a narrowband positioning reference signal that comprises a narrowband reference signal sequence. The narrowband reference signal sequence is a subsequence of a wideband reference signal sequence. The wideband reference signal sequence is configured for a wideband frequency bandwidth that is wider than a maximum frequency bandwidth defined for the narrowband wireless communication system. The user equipment is also configured to perform a positioning measurement using the narrowband positioning reference signal.
    Type: Application
    Filed: December 9, 2020
    Publication date: March 25, 2021
    Inventors: Xingqin Lin, Johan Bergman, Fredrik Gunnarsson, Olof Liberg, Sara Modarres Razavi, Henrik Rydén, Yutao Sui, Yi-Pin Eric Wang
  • Publication number: 20210067270
    Abstract: Configuration of Additional System Information Block RepetitionsEmbodiments described herein relate to methods and apparatus for determining which 5 of a plurality of subframes are repetition subframes, wherein repetition subframes are subframes scheduled for use by abase station to transmit a repetition of a system information block. A method comprises receiving a first mapping comprising information designating a subset of the plurality of subframes as invalid subframes; and determining, based on the first mapping and a second mapping, which of the 0 subframes designated as invalid subframes are repetition subframes, wherein the second mapping comprises information designating at least one of the subset of the plurality of subframes as a repetition subframe.
    Type: Application
    Filed: September 12, 2018
    Publication date: March 4, 2021
    Inventors: Yutao SUI, Emre YAVUZ, Andreas HÖGLUND, Yi-Pin Eric WANG
  • Patent number: 10931409
    Abstract: Systems and methods for determining configurable timing relationships and operational parameters are provided. In some embodiments, a method of operation of a wireless device in a wireless system includes determining round-trip propagation delay information between the wireless device and a network node. This round-trip propagation delay information may be a round-trip propagation delay a quantized round-trip propagation delay, or any other value indicative of the round-trip propagation delay. The in method also includes determining a Hybrid Automatic Retransmission Request (HARQ) operational parameter based on the round-trip propagation delay information between the wireless device and the network node. In this way, HARQ is extended to work for deployments with large round-trip propagation delays, such as satellite systems. This may increase the throughput and reliability of data transmission.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: February 23, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Xingqin Lin, Ansuman Adhikary, Ali S. Khayrallah, Mikael Prytz, Magnus Stattin, Yi-Pin Eric Wang