Patents by Inventor Yutao Sui

Yutao Sui 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: 20220166539
    Abstract: According to some embodiments, a method performed by a wireless device operating in connected mode for reporting channel quality comprise: determining that aperiodic channel quality reporting has been triggered for the wireless device and transmitting a downlink channel quality report to a network node. A channel quality in the report is represented by a number of repetitions used to receive a channel. In particular embodiments, the number of repetitions comprises a number of repetitions used to receive a machine type communication (MTC) physical downlink control channel (MPDCCH) or a narrowband Internet-of-things (NB-IoT) physical downlink control channel (NPDCCH).
    Type: Application
    Filed: January 31, 2020
    Publication date: May 26, 2022
    Inventors: Johan Bergman, Ritesh Shreevastav, Kazuyoshi Uesaka, Luca Feltrin, Yutao Sui
  • Publication number: 20220150830
    Abstract: A technique for transmitting and receiving data from a node of a radio access network, RAN, to a radio device is described. The radio device is configured for discontinuous reception, DRX, according to a DRX configuration. As to a method aspect of the technique, it is determined whether data is available for transmission to the radio device. A power saving signal is selectively transmitted to the radio device depending on the DRX configuration. If the data is available, at least one of the data and a scheduling assignment for the transmission of the data is transmitted to the radio device on a radio resource according to the DRX configuration.
    Type: Application
    Filed: January 28, 2022
    Publication date: May 12, 2022
    Inventors: Andreas Höglund, Magnus Åström, Yutao Sui, Anders Wallèn
  • Publication number: 20220150988
    Abstract: According to one aspect of the disclosure, a wireless device is configured to transmit a random access preamble. The wireless device includes processing circuitry. The processing circuitry is configured to obtain a tone index, and determine a location within a frequency band for transmitting the random access preamble based on the obtained tone index.
    Type: Application
    Filed: January 26, 2022
    Publication date: May 12, 2022
    Inventors: Xingqin LIN, Ansuman ADHIKARY, Johan BERGMAN, Yufei BLANKENSHIP, Asbjörn GRÖVLEN, Hazhir SHOKRI RAZAGHI, Yutao SUI, Yi-Pin Eric WANG
  • Publication number: 20220110061
    Abstract: A method of receiving a wake-up signal from a network node is performed by a wireless device. The method includes determining provided coverage enhancement level with respect to the network node, determining an activity level of the wireless device, determining a required wake-up signal reception effort, wherein the wake-up signal reception effort includes an amount of the redundancy of the wake-up signal being exploited at reception, based at least the coverage enhancement level and the activity level, and receiving a wake-up signal based on the determined reception effort. A wireless device having a wake-up receiver capable of receiving a wake-up signal from a network node and a computer program for implementing the method in the wireless device are also disclosed.
    Type: Application
    Filed: December 8, 2021
    Publication date: April 7, 2022
    Inventors: Magnus ÅSTRÖM, Muhammad KAZMI, Yutao SUI, Santhan THANGARASA
  • Patent number: 11296825
    Abstract: Embodiments 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: Grant
    Filed: September 12, 2018
    Date of Patent: April 5, 2022
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Yutao Sui, Emre Yavuz, Andreas Höglund, Yi-Pin Eric Wang
  • Publication number: 20220095386
    Abstract: A wireless device is configured to determine a Random Access-Radio Network Temporary Identifier (RA-RNTI) for use in a radio network system. The wireless device comprises a first counter configured to be incremented after a pre-defined period of time and to be re-set when having reached a predefined first number, wherein the first counter counts a first count; a second counter configured to be incremented when the first counter reaches the predefined first number and to be re-set when having reached a predefined second number, wherein the second counter counts a second count; and a third counter configured to be incremented when the second counter reaches the predefined second number and to be re-set when having reached a predefined third number, wherein the third counter counts a third count. The wireless device is configured to determine an RA-RNTI at least based on the second count and the third count.
    Type: Application
    Filed: December 7, 2021
    Publication date: March 24, 2022
    Inventors: Ritesh Shreevastav, Mattias Bergström, Magnus Stattin, Yutao Sui
  • Patent number: 11272550
    Abstract: According to one aspect of the disclosure, a wireless device is configured to transmit a random access preamble. The wireless device includes processing circuitry. The processing circuitry is configured to obtain a tone index, and determine a location within a frequency band for transmitting the random access preamble based on the obtained tone index.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: March 8, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Xingqin Lin, Ansuman Adhikary, Johan Bergman, Yufei Blankenship, Asbjörn Grövlen, Hazhir Shokri Razaghi, Yutao Sui, Yi-Pin Eric Wang
  • Patent number: 11271692
    Abstract: A base station and wireless device are configured to support TDD operation. In exemplary embodiments, the base station or UE can make use of the available symbols in the DwPTS or UpPTS of a special subframe respectively for NB-IoT transmissions. In one example, the base station can use OFDM symbols in the DwPTS to repeat in a predetermined manner some of the symbols transmitted in an immediately preceding downlink subframe, or in a succeeding downlink subframe. In other embodiments, the UE can use symbols in the UpPTS to repeat in a predetermined manner some of the symbols transmitted in the immediately succeeding uplink subframe, or in a preceding uplink subframe. The symbols repeated in the special subframe can be coherently combined at the receiver with corresponding symbols transmitted in a downlink or uplink subframe to improve decoding performance, reduce errors, improve channel estimation, and increase system capacity.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: March 8, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Yutao Sui, Johan Bergman, Xingqin Lin, Gerardo Agni Medina Acosta, Yin-Pin Eric Wang
  • Patent number: 11265726
    Abstract: Embodiments described herein are directed to methods, apparatus and systems for virtualizing the standalone NB-IoT carrier to make it possible to place two standalone NB-IoT carriers side-by-side. The methods can include receiving a first anchor carrier in standalone spectrum shifted +/?2.5 kHz or +/?7.5 kHz from a 100 kHz raster grid. An indication can be received on the first anchor carrier that the first anchor carrier is operated as one of an inband carrier or a guardband carrier. A second carrier can be received in standalone spectrum, the second carrier separated from the first anchor carrier by less than 400 kHz.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: March 1, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Yutao Sui, Dominique Everaere, Yi-Pin Eric Wang
  • Publication number: 20220053423
    Abstract: Embodiments relate to e.g. a method performed by radio network node (12) for paging a UE (10) in a wireless communication network. The UE (10) transmits a paging signal on a carrier to the UE (10), wherein the carrier is associated with a second paging signal for a second type of UEs. A first number of carriers are configured for a first paging signal of a first type of UEs and a second number of carriers are configured for the second paging signal of the second type of UEs, wherein the first paging signal comprises a first wake-up signal, WUS, and wherein the second paging signal comprises a group wake up signal, WUS, for a group of UEs of the second type of UEs.
    Type: Application
    Filed: September 27, 2019
    Publication date: February 17, 2022
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Andreas HÖGLUND, Magnus ÅSTRÖM, Anders WALLÉN, Yutao SUI
  • Publication number: 20220053529
    Abstract: Techniques are provided for fast adaptation of DRX settings used by a UE via L1 signaling in order to reduce power consumption by the UE. Generally, the UE is configured for DRX by a higher layer protocol (e.g. RRC), and L1 signaling can be used to control or adapt the DRX by the UE. For example, the L1 signaling may be used to adjust or override 5 operation of an IAT. The downlink control information may be sent in an existing downlink control message or in a new downlink control message. The downlink control message may be a scheduling message scheduling a data transmission to or from the UE.
    Type: Application
    Filed: September 24, 2019
    Publication date: February 17, 2022
    Inventors: Ajit Nimbalker, Ravikiran Nory, Yutao Sui
  • Publication number: 20220038971
    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: Application
    Filed: September 24, 2019
    Publication date: February 3, 2022
    Inventors: Olof Liberg, Yutao Sui, Yi-Pin Eric Wang
  • Publication number: 20220039008
    Abstract: Techniques for fast adaptation of PDCCH monitoring by a UE via L1 signaling in order to reduce power consumption by the UE are disclosed. A base station sends first configuration information to a user equipment (UE) via higher layer signaling (e.g. RRC) to configure downlink control channel monitoring by the UE. Thereafter, the base station may send downlink control information to the UE via L1 signaling to adapt the PDCCH monitoring by the 6 UE. The downlink control information may temporarily override or modify the parameters for PDCCH monitoring set by higher layers. The downlink control information may be send in an existing downlink control message or in a new downlink control message.
    Type: Application
    Filed: September 24, 2019
    Publication date: February 3, 2022
    Inventors: Ajit Nimbalker, Ravikiran Nory, Yutao Sui
  • Publication number: 20220038997
    Abstract: Improving uplink transmission efficiency and/or user equipment, UE, power consumption by means of transmission in preconfigured resources. This may involve specifying support for transmission in preconfigured resources in idle and/or connected mode. Both shared resources and dedicated resources may be used. An example method performed by a wireless device comprises receiving (110) signaling indicating configuration of a preconfigured resource on a first link, and (120) receiving information indicating whether the wireless device is allowed or is not allowed to use the preconfigured resource. The method may further comprise using or not using (130) the preconfigured resource depending on the received information.
    Type: Application
    Filed: September 27, 2019
    Publication date: February 3, 2022
    Inventors: Andreas Höglund, Olof Liberg, Magnus Stattin, Tuomas Tirronen, Yutao Sui
  • Patent number: 11240756
    Abstract: A technique for transmitting and receiving data from a node of a radio access network, RAN, to a radio device is described. The radio device is configured for discontinuous reception, DRX, according to a DRX configuration. As to a method aspect of the technique, it is determined whether data is available for transmission to the radio device. A power saving signal is selectively transmitted to the radio device depending on the DRX configuration. If the data is available, at least one of the data and a scheduling assignment for the transmission of the data is transmitted to the radio device on a radio resource according to the DRX configuration.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: February 1, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Andreas Höglund, Magnus Åström, Yutao Sui, Anders Wallèn
  • Patent number: 11234193
    Abstract: A method of receiving a wake-up signal from a network node is performed by a wireless device. The method includes determining provided coverage enhancement level with respect to the network node, determining an activity level of the wireless device, determining a required wake-up signal reception effort, in which the wake-up signal reception effort includes an amount of the redundancy of the wake-up signal being exploited at reception, based at least the coverage enhancement level and the activity level, and receiving a wake-up signal based on the determined reception effort. A wireless device including a wake-up receiver capable of receiving a wake-up signal from a network node and a computer program for implementing the method in the wireless device are also disclosed.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: January 25, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Magnus Åström, Muhammad Kazmi, Yutao Sui, Santhan Thangarasa
  • Patent number: 11229058
    Abstract: A wireless device is provided that is configured to determine a Random Access-Radio Network Temporary Identifier, RA-RNTI, for use in a radio network system. The wireless device comprises a first counter configured to be incremented after a predefined period of time and to be re-set when having reached a predefined first number, wherein the first counter counts a first count; a second counter configured to be incremented when the first counter reaches the predefined first number and to be re-set when having reached a predefined second number, wherein the second counter counts a second count; and a third counter configured to be incremented when the second counter reaches the predefined second number and to be re-set when having reached a predefined third number, wherein the third counter counts a third count. The wireless device is configured to determine an RA-RNTI at least based on the second count and the third count.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: January 18, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ritesh Shreevastav, Mattias Bergström, Magnus Stattin, Yutao Sui
  • 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: 20210400761
    Abstract: A method, network node and wireless device for adaptive connected discontinuous reception (C-DRX) configurations. According to one aspect, a method includes configuring a first set of short discontinuous reception, DRX, cycles and a second set of long DRX cycles, each DRX cycle having a duration for which the WD listens for an uplink grant from the network node. The method further includes transmitting to the WD at least a number of DRX cycles in the first set and a number of cycles in the second set.
    Type: Application
    Filed: November 1, 2019
    Publication date: December 23, 2021
    Inventors: Sina MALEKI, Martin VAN DER ZEE, Ali NADER, Yutao SUI, Andres REIAL
  • Publication number: 20210400699
    Abstract: Systems and methods are disclosed herein for transitioning between different scheduling delay assumptions. In some embodiments, a method performed by a wireless device comprises monitoring, during a first slot, for a downlink control channel comprising downlink control information that schedules a transmission for the wireless device with an assumption of a first scheduling delay that is equal to or exceeds a first value. The method further comprises determining that the wireless device is to switch from the assumption of the first scheduling delay to an assumption of a second scheduling delay that is equal to or exceeds a second value that is less than the first value. The method further comprises monitoring, during one or more later slots that occur after the first slot, for a downlink control channel comprising downlink control information that schedules a transmission for the wireless device with the assumption of the second scheduling delay.
    Type: Application
    Filed: September 28, 2019
    Publication date: December 23, 2021
    Inventors: Ravikiran Nory, Ajit Nimbalker, Havish Koorapaty, Andres Reial, Yutao Sui