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: 11621878
    Abstract: A method performed by a network node in a wireless communications system is disclosed. The method comprises generating 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 the generated time-continuous baseband signal into a radio frequency signal. The method comprises transmitting the radio frequency signal to a wireless device over a radio interface.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: April 4, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Olof Liberg, David Sugirtharaj, Yi-Pin Eric Wang
  • Patent number: 11611919
    Abstract: According to an aspect, a wireless device (50) performs idle mode radio resource management, RRM, measurements in a wireless network comprising a first carrier that supports a broadcast of system information, provides radio resources for paging and random access, and supports idle-mode measurements and further comprises a second carrier, distinct from the first carrier, that also provides radio resources for paging and random access. The wireless device (50) performs (502) at least one of a signal strength measurement and quality measurement on each of the first and second carriers, the first carrier being an anchor carrier for the wireless device and the second carrier being a non-anchor carrier. Based on the at least one measurement for each of the respective carriers, the wireless device (50) determines (504) whether to perform idle-mode RRM measurements on the second, non-anchor, carrier.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: March 21, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Olof Liberg, Yutao Sui, Yi-Pin Eric Wang
  • Publication number: 20230072551
    Abstract: Embodiments include methods for a wireless device configured for random access to a cell of a wireless network. Such methods include transmitting, to a network node during a random-access procedure in the cell, a first indication of at least one capability of the wireless device. Such methods also include communicating with the network node, in one or more subsequent messages of the random-access procedure, using a configuration corresponding to the at least one capability indicated by the first indication. Other embodiments include complementary methods for a network node configured to support random access by wireless devices, as well as wireless devices and network nodes configured to perform such methods.
    Type: Application
    Filed: February 4, 2021
    Publication date: March 9, 2023
    Inventors: Yutao Sui, Andreas Höglund, Luca Feltrin, Johan Bergman, Yi-Pin Eric Wang, Mohammad Mozaffari, Yi-Ju Chen
  • Patent number: 11601901
    Abstract: Systems and methods relating to a narrowband Primary Synchronization Signal (NB-PSS) and a narrowband Secondary Synchronization Signal (NB-SSS) are disclosed. In some embodiments, a base station in a wireless network comprises a processor and storage that stores instructions executable by the processor whereby the base station is operable to transmit a NB-PSS and a NB-SSS in a narrowband portion of a downlink system bandwidth. The NB-PSS and the NB-SSS are transmitted such that more than two occurrences of the NB-PSS and more than two occurrences of the NB-SSS are transmitted over a defined time interval, each occurrence of the NB-PSS is transmitted over multiple contiguous Orthogonal Frequency Division Multiplexing (OFDM) symbols and each occurrence of the NB-SSS is transmitted over multiple contiguous OFDM symbols, and each occurrence of the NB-SSS provides an indication of a location of the occurrence of the NB-SSS within the defined time interval.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: March 7, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Xingqin Lin, Ansuman Adhikary, Niklas Johansson, Yi-Pin Eric Wang
  • Patent number: 11554318
    Abstract: A method performed by a network node comprises transmitting a transmission of system information. The transmission comprises coded bits obtained by reading from a circular buffer. The transmission is transmitted in a first set of subframes corresponding to subframes #4 of a plurality of radio frames. The method further comprises transmitting an additional transmission of the system information. The additional transmission comprises additional coded bits obtained by continuing reading from the circular buffer. The additional transmission is transmitted in a second set of subframes corresponding to subframes of the plurality of radio frames other than subframes #4.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: January 17, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Yi-Pin Eric Wang, Magnus Åström, Yutao Sui
  • Patent number: 11553423
    Abstract: A method for a user equipment, a method for a network equipment, a user equipment and a network equipment is disclosed. The network equipment transmits a signal pertaining to if control information is present in a first time period while the user equipment determines if a signal pertaining to control information is present in a first time period. The network equipment transmits control information to a UE in accordance with the transmitted signal while the user equipment decides whether to attempt to decode the control information depending on the determination.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: January 10, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Yutao Sui, Johan Bergman, Andreas Höglund, Olof Liberg, Xingqin Lin, Yi-Pin Eric Wang
  • Publication number: 20230007603
    Abstract: A method of operating a wireless device in a wireless communication network. The method includes detecting first synchronization signaling of a first cell on first time and frequency resources. The first synchronization signaling comprises at least a first synchronization signal and a second synchronization signal. The method further includes detecting indication signaling on second time and frequency resources. The second time and frequency resources are derived based on the first time and frequency resources. The method further includes accessing the first cell if the indication signaling is detected on the second time and frequency resources. Accessing the first cell includes decoding a first system information message on a broadcast channel of the first cell. The first system information message indicates time and frequency resources of a first resource set. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: December 7, 2020
    Publication date: January 5, 2023
    Inventors: Yutao SUI, Yi-Pin Eric WANG, Johan LING, Andreas HÖGLUND, Olaf LIBERG, Yi-Ju CHEN, Mohammad MOZAFFARI
  • Publication number: 20230007524
    Abstract: A method by a reduced capability wireless device includes receiving system information from a network node. The system information comprising information specific to the reduced capability wireless device. The reduced capability wireless device performs an operation using at least the information specific to the reduced capability wireless device received in the system information.
    Type: Application
    Filed: December 4, 2020
    Publication date: January 5, 2023
    Inventors: Yi-Pin Eric Wang, Xingqin Lin, Yutao Sui, Mohammad Mozaffari, Luca Faltrin, Yi-Ju Chen, Andreas Höglund
  • Publication number: 20220408479
    Abstract: A network node (560) transmits (110) broadcast information (201) which indicates a set (202) of control resource elements. The network node transmits (120) first control information in the set of control resource elements. The first control information schedules a first downlink message (203). The network node transmits (130) second control information in a subset (204) of the set of control resource elements for use by a bandwidth-restricted wireless device. The subset of the set of control resource elements has a smaller bandwidth than the set of control resource elements. The second control information schedules a second downlink message (205). A wireless device (510) performs an associated method (400).
    Type: Application
    Filed: November 18, 2020
    Publication date: December 22, 2022
    Inventors: Yi-Pin Eric Wang, Xingqin Lin, Yutao Sui, Luca Feltrin, Olof Liberg, Andreas Höglund, Mohammad Mozaffari
  • Publication number: 20220377760
    Abstract: A method performed by a network node (260, 800) is disclosed. The network node determines (701), based on one or more quality-of-service (QoS) parameters, an aggregated uplink (UL) scheduling pattern for a wireless device (210, 1000, 1100), the aggregated UL scheduling pattern for the wireless device comprising UL resources from a plurality of carriers. The one or more QoS parameters indicate one or more QoS requirements associated with a service. At least one of the one or more QoS parameters indicates a delay requirement 0 associated with the service.
    Type: Application
    Filed: September 24, 2020
    Publication date: November 24, 2022
    Inventors: Ying Sun, Yi-Pin Eric WANG, Yutao SUI
  • Publication number: 20220377705
    Abstract: There is provided a method performed by a wireless device for communicating with a network node in a wireless communication network. The method includes using a field in a Master Information Block (MIB) received by the wireless device, as an indication of a presence of an extended MIB (eMIB) and identifying which candidate resource of at least one candidate resource that contains the eMIB based on the indication of the presence of the eMIB. There is also provided a corresponding wireless device for communicating with a network node, a method perform by a network node, and a network node.
    Type: Application
    Filed: November 6, 2020
    Publication date: November 24, 2022
    Inventors: Yi-Pin Eric WANG, Xingqin LIN, Yutao SUI, Mohammad MOZAFFARI, Andreas HÖGLUND, Olof LIBERG, Luca FELTRIN
  • 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
  • Publication number: 20220353118
    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: July 13, 2022
    Publication date: November 3, 2022
    Inventors: Yi-Pin Eric Wang, Anders K. Eriksson, Johan Bergman, Chunhui Zhang, Gerardo Agni Medina Acosta
  • Patent number: 11477812
    Abstract: A user equipment is configured for use in a wireless communication system. The user equipment in particular is configured to receive from a base station one or more configuration messages that indicate a pattern of downlink transmission gaps in time. The user equipment is further configured to receive from the base station a scheduled downlink transmission that comprises a downlink data block and one or more repetitions of the downlink data block. The scheduled downlink transmission is received with downlink transmission gaps therein according to the indicated pattern. Alternatively or additionally, the user equipment is configured to transmit a scheduled uplink transmission that comprises an uplink data block and one or more repetitions of the uplink data block. In this case, the scheduled uplink transmission is transmitted with uplink transmission gaps therein according to an uplink transmission gap pattern that specifies a pattern of uplink transmission gaps in time.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: October 18, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ali Nader, Andreas Höglund, Béla Rathonyi, Yi-Pin Eric Wang
  • Publication number: 20220329406
    Abstract: According to certain embodiments, a method (500) by a wireless device (110) includes receiving information relating to a Narrowband Secondary Synchronization Signal (NSSS) transmit diversity scheme. The information indicates a number of NSSS occasions that use different NSSS transmit diversity configurations. Based on the NSSS transmit diversity scheme, at least one measurement is performed across NSSS occasions.
    Type: Application
    Filed: June 27, 2022
    Publication date: October 13, 2022
    Inventors: Olof Liberg, Joakim AXMON, Mats FOLKE, Andreas HOGLUND, Yutao SUI, Martin VAN DER ZEE, Yi-Pin Eric WANG
  • Patent number: 11457406
    Abstract: A radio network node may operate in a normal or restricted operating state. In the restricted operating state, the radio network node may have just enough activity to enable UEs to detect the cell. The radio access node may transition to the normal operating state in response to messaging from a wireless communication device, such as reception of a random access preamble.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: September 27, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ali Nader, Yi-Pin Eric Wang, Ansuman Adhikary
  • Publication number: 20220303906
    Abstract: A network node is configured to monitor battery usage on behalf of the low power device and to predict the SOC and remaining life-time for the batteries in the low power devices. The network nodes are fully powered and have the computational capacity to use more complex and accurate models that are not feasible for implementation in resource-limited devices. The network node can calculate the SOC and remaining life-time for a low power device and may also change the transmission and reception patterns for the device to extend the life-time of the battery.
    Type: Application
    Filed: May 21, 2019
    Publication date: September 22, 2022
    Inventors: Talha Khan, Per Gunningberg, Olof Liberg, Yi-Pin Eric Wang
  • Patent number: 11445510
    Abstract: A method for managing a wireless connection of an Unmanned Aerial Vehicle (UAV) is described herein. In one embodiment, the method comprises receiving flight information describing a flight path for the UAV; determining a set of network resources for the UAV based on the flight information; and reserving the set of network resources by a first network cell and a second network cell of a wireless network based on the flight information.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: September 13, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Attila Takács, Ravi Manghirmalani, Heikki Mahkonen, Yi-Pin Eric Wang, Xingqin Lin
  • Publication number: 20220278785
    Abstract: Disclosed is a method for scheduling transmissions of multiple carriers from a single transmitting network node (10; 100) for multiple Narrow Band Internet of Things (NB-IoT) cells, (50). The multiple carriers comprising a respective cell specific anchor carrier having NB-IoT sub-frames allocated for the transmission of mandatory information related to the functionality of the specific cell. The method comprises scheduling (S1) at least two cell specific anchor carriers using time interleaved transmissions that enables NB-IoT sub-frames belonging to different cell specific anchor carriers, and being allocated for the transmission of the mandatory information, to be transmitted at non-overlapping times.
    Type: Application
    Filed: May 3, 2019
    Publication date: September 1, 2022
    Inventors: Olof Liberg, Yi-Pin Eric Wang
  • Patent number: 11418374
    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: Grant
    Filed: October 30, 2018
    Date of Patent: August 16, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Yi-Pin Eric Wang, Anders Eriksson, Johan Bergman, Chunhui Zhang, Gerardo Agni Medina Acosta