Patents by Inventor Eric Wang

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).

  • Publication number: 20200377549
    Abstract: Compounds for targeting and agents for imaging, prostate-specific membrane antigen (PSMA) are disclosed. Methods of synthesizing compounds and imaging agents, as well as methods for imaging PSMA are also disclosed. The imaging agents disclosed are suitable for PET and SPECT imaging.
    Type: Application
    Filed: August 21, 2020
    Publication date: December 3, 2020
    Inventors: Eric Wang, Hartmuth C. Kolb, Anna Katrin Szardenings, Changhui Liu, Joseph C. Walsh, Gang Chen, Anjana Sinha, Dhanalakshmi Kasi, Chul Yu, Umesh B. Gangadharmath, Wei Zhang, Tieming Zhao, Vani P. Mocharla
  • Publication number: 20200374083
    Abstract: According to certain embodiments, 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: Application
    Filed: November 16, 2018
    Publication date: November 26, 2020
    Inventors: Yi-Pin Eric WANG, Magnus ÂSTRÖM, Yutao SUI
  • Publication number: 20200374099
    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: November 23, 2018
    Publication date: November 26, 2020
    Inventors: Olof Liberg, Joakim AXMON, Mats FOLKE, Andreas HÖGLUND, Yutao SUI, Martin VAN DER ZEE, Yi-Pin Eric WANG
  • Publication number: 20200367270
    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: Application
    Filed: August 3, 2020
    Publication date: November 19, 2020
    Inventors: Ali Nader, Andreas Höglund, Béla Rathonyi, Yi-Pin Eric Wang
  • Patent number: 10820286
    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: January 8, 2019
    Date of Patent: October 27, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Xingqin Lin, Ansuman Adhikary, Niklas Johansson, Yi-Pin Eric Wang
  • Publication number: 20200322985
    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: Application
    Filed: June 18, 2020
    Publication date: October 8, 2020
    Inventors: Xingqin Lin, Ansuman Adhikary, Johan Mikael Bergman, Yufei Blankenship, Asbjörn Grövlen, Hazhir Shokri Razaghi, Yutao Sui, Yi-Pin Eric Wang
  • Publication number: 20200314910
    Abstract: The load on Random Access channels (N)PRACH (i.e., Msg1) is temporally distributed, to better handle synchronized access peaks from machine type devices. Access attempts by wireless devices are distributed in time, based on their identities (e.g., IMSI, which is used for the distribution of paging load) or random draw. The distribution restricts when 5 wireless devices can access the network, either based on System Frame Number or on random access occurrence. The method is implicit, i.e., after the initial System Information (SI) acquisition, wireless devices will automatically apply temporal network access load distribution according to the configuration provided in SI without any need for explicit signaling or re-acquisition of SI. Embodiments of the invention may be advantageously applied to any wireless 10 communication network supporting machine type communications, such as GPRS/EGPRS/ECGSM-IoT and UMTS/HSPA, as well as non-3GPP radio access technologies such as LoRa, Sigfox, and Ingenu.
    Type: Application
    Filed: November 9, 2018
    Publication date: October 1, 2020
    Inventors: Andreas Höglund, Johan Mikael Bergman, Olof Liberg, Yutao Sui, Yi-Pin Eric Wang
  • Publication number: 20200280406
    Abstract: A method, wireless device and network node for supporting sub-physical resource block transmissions over a physical uplink shared channel, PUSCH, are disclosed. According to one aspect, a method includes receiving an indication of a number of resource units to be used for performing sub-PRB transmissions over the PUSCH. The method further includes mapping the number of RUs to a number of physical resource blocks, PRBs and determining a transport block size, TBS, for a sub-PRB transmission over the PUSCH, based on the mapping of the number of RUs to the number of PRBs. The method also includes transmitting sub-PRB transmissions over the PUSCH according to the determined TBS on the number of RUs.
    Type: Application
    Filed: September 28, 2018
    Publication date: September 3, 2020
    Inventors: Gerardo Agni MEDINA ACOSTA, Johan BERGMAN, Anders K ERIKSSON, Yi-Pin Eric WANG
  • Patent number: 10764104
    Abstract: Provided are methods (400) of estimating a time delay and/or a frequency shift of a reference signal. Such methods include receiving (405) a first reference signal that is generated using a first Zadoff-Chu (ZC) sequence, receiving (410) a second reference signal that is generated using a second ZC sequence that is different than the first ZC sequence, and processing (415) the first reference signal and the second reference signal to estimate at least one of the time delay and the frequency shift of the first reference signal and/or the second reference signal.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: September 1, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Xingqin Lin, Ansuman Adhikary, Ali S. Khayrallah, Havish Koorapaty, Yi-Pin Eric Wang
  • Patent number: 10750504
    Abstract: A wideband carrier (e.g., LTE carrier) is shifted up or down in frequency, within an allocated frequency band, by an integer multiple of the channel raster spacing (e.g., 100 KHz). This reduces the size of the guard band on one side of the carrier, and expands the guard band on the other side. A narrowband carrier (e.g., NB-IoT carrier) is then deployed within the expanded guard band, at or near a frequency such that the transmission is orthogonal to the wideband carrier transmissions, such as by using a shared N frequency grid spacing (e.g. at 100 KHz spacing, and using 15 KHz subcarriers). The narrowband carrier thus maintains orthogonality with the wideband carrier, but has “room” within the expanded guard band to both transmit on a frequency close to the frequency grid spacing, and to boost transmit power (e.g., by 6 dB), while remaining within the spectral mask. The shifted wideband carrier is transparent to wideband UEs, as the frequency shift is an integer multiple of the channel raster spacing.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: August 18, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Spendim Dalipi, Dominique Everaere, Asbjörn Grövlen, Kenneth Sandberg, Yutao Sui, Yi-Pin Eric Wang
  • Publication number: 20200260502
    Abstract: An example method in a user equipment comprises generating a random access preamble signal and transmitting the random access preamble signal. This generating of the random access preamble signal comprises generating a random access preamble signal comprising two or more consecutive preamble symbol groups, each preamble symbol group comprising a cyclic prefix portion and a plurality of identical symbols occupying a single subcarrier of the random access preamble signal. The single subcarrier for at least one of the preamble symbol groups corresponds to a first subcarrier frequency and the single subcarrier for an immediately subsequent one of the preamble symbol groups corresponds to a second subcarrier frequency.
    Type: Application
    Filed: May 1, 2020
    Publication date: August 13, 2020
    Inventors: Xingqin Lin, Ansuman Adhikary, Asbjörn Grövlen, Dennis Hui, Niklas Johansson, Yutao Sui, Mårten Sundberg, Yi-Pin Eric Wang
  • Publication number: 20200260429
    Abstract: A method performed by a user equipment (UE) in idle mode, for determining common search space (CSS) for NB-IoT paging is disclosed. The method comprises determining a set of periodic subframes as a Paging Occasion (PO) subframe pattern. The method further comprises monitoring a starting subframe of paging CSS for a Radio Network Temporary Identifier (RNTI). The starting subframe of paging CSS is determined as follows: a first subframe (SF0) defined by the Paging Occasion subframe pattern, is used when SF0 is determined to be a valid downlink subframe. A next valid downlink subframe after SF0 is used when SF0 is determined to be an invalid downlink subframe.
    Type: Application
    Filed: February 19, 2020
    Publication date: August 13, 2020
    Inventors: Yufei Blankenship, Yutao Sui, Yi-Pin Eric Wang, Asbjörn Grövlen, Hazhir Shokri Razaghi, Xingqin Lin, Ansuman Adhikary, Johan Bergman
  • Publication number: 20200259896
    Abstract: Techniques for enhancing performance in Industrial Internet-of-Things (IIoT) scenarios, including techniques for time-sensitive networking (TSN) and 5G wireless network integration. An example method, performed by a wireless device, comprises receiving system information (SI) from a radio base station (RBS) of a radio access network (RAN), the SI being indicative of support for TSN through the RBS, and establishing at least one TSN stream with an external data network, through the RBS. The example method further includes receiving a first timing signal from the wireless communications network, via the RBS, receiving a second timing signal from the external TSN data network to which the wireless device is connected, comparing the first timing signal to the second timing signal to determine an offset, and transmitting the offset to the wireless communications network.
    Type: Application
    Filed: February 13, 2019
    Publication date: August 13, 2020
    Inventors: Joachim Sachs, Abdulrahman Alabbasi, Mattias Andersson, Niklas Andgart, Ola Angelsmark, José Araújo, Muhammad Ikram Ashraf, Kumar Balachandran, Robert Baldemair, Rodrigo Berg, Yufei Blankenship, Fedor Chernogorov, John Walter Diachina, Torsten Dudda, Henrik Enbuske, Sorour Falahati, János Farkas, Jonas Fröberg Olsson, Majid Gerami, Harald Gustafsson, Kimmo Hiltunen, Andreas Höglund, Torgny Holmberg, Zsolt Kenesi, András Kern, Kittipong Kittichokechai, Anna Larmo, Johan Lundsjö, György Miklós, Hubertus Munz, Gabor Nemeth, Johannes Nygren, Johan Olsson, Alexandros Palaios, Dhruvin Patel, Joakim Persson, Per Persson, Jose Luis Pradas, Sándor Rácz, Pradeepa Ramachandra, Norbert Reider, Dinand Roeland, Stefano Ruffini, Patrik Salmela, Sara Sandberg, Magnus Sandgren, Paul Schliwa-Bertling, Alexey Shapin, Nianshan Shi, Bikramjit Singh, Per Skarin, Bernard Smeets, Ying Sun, Dennis Sundman, Fredrik Svensson, Malgorzata Svensson, Geza Szabo, Wolfgang Tonutti, Balázs Varga, Mårten Wahlström, Kun Wang, Yi-Pin Eric Wang, Osman Nuri Can Yilmaz, Zhenhua Zou, Miguel Lopez
  • Patent number: 10743186
    Abstract: Embodiments herein relate for example to a method performed by a wireless device in a first wireless communication system that is deployed on a frequency resource. The wireless device receives information indicating a PRB offset and a corresponding channel raster offset. The channel raster offset is an offset in frequency between a channel raster, used by the wireless device (105) in a cell search process, and the frequency resource. The PRB offset indicates an offset between the frequency resource and an inner frequency resource on which a second wireless communication system is deployed. In the frequency domain, the second wireless communication system is deployed on at least one higher frequency resource above the inner frequency resource and at least one lower frequency resource below the inner frequency resource. The wireless device determines, based on the received information, an adjustment in frequency applicable for the frequency resource on which the first wireless communication system is deployed.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: August 11, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Yutao Sui, Ansuman Adhikary, Johan Bergman, Yufei Blankenship, Asbjörn Grövlen, Xingqin Lin, Hazhir Shokri Razaghi, Yi-Pin Eric Wang
  • Patent number: 10743334
    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: January 3, 2019
    Date of Patent: August 11, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ali Nader, Andreas Höglund, Béla Rathonyi, Yi-Pin Eric Wang
  • Publication number: 20200252858
    Abstract: Enabling a UE to determine whether the UE can skip the acquisition of SIB1-BR. An indication (e.g., a one bit flag) in the MIB is provided, which indication is set to a particular value if the UE needs to read SIB1-BR, otherwise the indication is set to a different value indicating that the UE can skip reading SIB1-BR assuming other conditions are met (e.g., assuming that the UE has previously read SIB1-BR within a MIB indication time period).
    Type: Application
    Filed: May 3, 2018
    Publication date: August 6, 2020
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Yi-Pin Eric WANG, Johan BERGMAN, Andreas HÖGLUND, Olof LIBERG, Antti RATILAINEN, Yutao SUI, Tuomas TIRRONEN, Anders WALLÉN, Emre YAVUZ
  • Patent number: 10736150
    Abstract: A method of transmitting a signal over a physical random access channel, wherein the signal comprises a plurality of symbols forming a symbol group. The method comprises applying scrambling to a plurality of symbols within the symbol group.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: August 4, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Xingqin Lin, Margaretha Forsgren, Fredrik Huss, Olof Liberg, Yi-Pin Eric Wang
  • Publication number: 20200245365
    Abstract: Random Access (RA) formats are defined for NB-IoT operation in TDD mode. The formats are defined to allow use of in the legacy LTE subframe configurations for TDD. The formats specify a predetermined, even number P of symbol groups composing a RA preamble, wherein each symbol group comprises a Cyclic Prefix (CP) and a number X of symbols. The P symbol groups are divided into symbol group sets fitting into 1, or 2, or 3 contiguous uplink subframes, each comprising at least two symbol groups transmitted back-to-back (i.e., contiguously in time), and at least two symbol group sets are transmitted non-contiguously in time across a number of uplink subframes over which the RA preamble is transmitted. The number of symbol groups in a set can be two or three, and the number of symbol groups is four or six, respectively. Symbol groups within a set are transmitted on adjacent uplink subframes. Five format options are defined, which map to various of the LTE TDD configurations.
    Type: Application
    Filed: September 26, 2018
    Publication date: July 30, 2020
    Inventors: Xingqin Lin, Johan Mikael Bergman, Andreas Höglund, Gerardo Agni Medina Acosta, Hazhir Shokri Razaghi, Yutao Sui, Yi-Pin Eric Wang
  • Patent number: 10728930
    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: March 10, 2017
    Date of Patent: July 28, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Xingqin Lin, Ansuman Adhikary, Johan Mikael Bergman, Yufei Blankenship, Asbjörn Grövlen, Hazhir Shokri Razaghi, Yutao Sui, Yi-Pin Eric Wang
  • Publication number: 20200236571
    Abstract: An apparatus, method and wireless device for fast scanning of a wireless communications medium are disclosed. According to one aspect, a method includes tuning a transceiver of the wireless node to a first frequency. The method further includes computing a first difference frequency, the first difference frequency being a difference between the first frequency and a second frequency. The method further includes generating a first control signal to configure a first backscattering device to switch between at least two states at a switching frequency equal to the first difference frequency.
    Type: Application
    Filed: January 17, 2019
    Publication date: July 23, 2020
    Inventors: Miguel LOPEZ, Yi-Pin Eric WANG