Patents by Inventor Le Liu

Le Liu 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: 20210289562
    Abstract: A wireless communication method includes transmitting, from a base station (BS), multiple downlink (DL) signals. The wireless communication method further includes receiving, with a user equipment (UE), two or more DL signals of the multiple DL signals, and notifying, with the BS, the UE of a number of the two or more DL signals. The two or more DL signals are associated with a Physical Random Access Channel (PRACH) resource.
    Type: Application
    Filed: September 28, 2017
    Publication date: September 16, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Le Liu, Yuichi Kakishima
  • Publication number: 20210289550
    Abstract: A method of transmission from a first node to a second node in an unlicensed band includes performing, with the first node, a directional clear channel assessment (CCA) to which a spatial filter is applied in the unlicensed band. The method further includes transmitting, from the first node to a second node, a signal after the first transceiver has performed the CCA. The spatial filter is applied to the signal. The method further includes transmitting, from the second node to the first node, capability information that indicates whether the second node is able to use spatial filtering. The method further includes notifying, with the first node, the second node of a resource to calculate the spatial filter in the second node.
    Type: Application
    Filed: August 21, 2017
    Publication date: September 16, 2021
    Applicants: NTT DOCOMO, INC., NTT DOCOMO, INC.
    Inventors: Le Liu, Yuichi Kakishima
  • Patent number: 11120251
    Abstract: A face capturing method and a related apparatus that are applicable to an electronic apparatus. The method includes: analyzing a captured first video stream to obtain a plurality of images (101); determining a first pattern including a plurality of first codes (102); buffering images of first frame numbers, corresponding to the first codes indicating images to be buffered, to buffers in sequence (103); when buffering the images, determining a second pattern including a plurality of second codes (104); buffering images of second frame numbers, corresponding to the second codes indicating images to be buffered, to the buffers in sequence (105); and when buffering the images, processing the images in the buffers in sequence on the basis of a face capturing algorithm and according to an order of the first numbers of the buffers, to obtain face images, and outputting the face images (106). The method prevents wastage of buffer resources.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: September 14, 2021
    Assignee: Shenzhen Intellifusion Technologies Co., Ltd.
    Inventors: Haijun Liu, Peng Gu, Le Chen
  • Publication number: 20210282114
    Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE or a component thereof configured to receive, from a base station, SPS configuration information for broadcast and/or multicast indicating a set of resources configured for feedback, with each transmit (TX) beam of a set of TX beams corresponding to a respective subset of the set of resources. The apparatus may be further configured to receive SPS signaling from the base station via one or more TX beams of the set of TX beams over each of a set of SPS occasions. The apparatus may be further configured to transmit feedback to the base station on one or more subsets of the set of resources respectively corresponding to the one or more TX beams based on the SPS signaling, the feedback indicating one of acknowledgement (ACK) or non-acknowledgement (NACK).
    Type: Application
    Filed: February 23, 2021
    Publication date: September 9, 2021
    Inventors: Le LIU, Kazuki TAKEDA, Wanshi CHEN, Alberto RICO ALVARINO, Peter GAAL, Tao LUO, Juan MONTOJO
  • Publication number: 20210282115
    Abstract: Wireless communications are described. A user equipment (UE) may receive a configuration message identifying a set of resources available for a plurality of UEs for transmission of feedback indications of multi-cast (or broadcast) transmission to the plurality of UEs, the set of resources comprising a plurality of subsets of resources, each subset of resources being associated with a corresponding channel metric for each UE of the plurality of UEs receiving the multi-cast transmission. The UE may determine that a feedback indication is to be provided in response to the multi-cast transmission. The UE may select, based at least in part on a channel metric of the UE, a first subset of the plurality of subsets of resources to use for transmitting a feedback message including the feedback indication. The UE may transmit the feedback message for the multi-cast transmission using resources within the selected first subset of resources.
    Type: Application
    Filed: March 1, 2021
    Publication date: September 9, 2021
    Inventors: Ayan Sengupta, Alberto Rico Alvarino, Peter Gaal, Tao Luo, Kazuki Takeda, Juan Montojo, Le Liu, Xiaoxia Zhang, Wanshi Chen, Umesh Phuyal, Prasad Reddy Kadiri
  • Publication number: 20210279515
    Abstract: A computer device obtains a first face image (IMA) and a second face image (IFA). The device obtains M first image blocks corresponding to facial features from the first face image (IMA), and obtains N second image blocks corresponding to facial features from the second face image (IFA). The device transforms the M first image blocks and the N second image blocks to a feature space to generate M first feature blocks and N second feature blocks. The device selects a subset of the first feature blocks and a subset of the second feature blocks according to a specified control vector. The device generates a first composite feature map based the selected subset of the first feature blocks and the selected subset of the second feature blocks. The device inversely transforms the first composite feature map back to an image space to generate a third face image.
    Type: Application
    Filed: May 24, 2021
    Publication date: September 9, 2021
    Inventors: Yong ZHANG, Le LI, Zhilei LIU, Baoyuan Wu, Yanbo FAN, Zhifeng LI, Wei LIU
  • Publication number: 20210281373
    Abstract: Aspects directed towards sounding reference signal (SRS) antenna switching are disclosed. In one example, an SRS configuration is received from a network in which at least four antennas of a scheduled entity are configured based on the SRS configuration. Here, the SRS configuration configures at least one antenna to simultaneously support SRS antenna switching and an uplink (UL) multiple-input multiple-output (MIMO) communication. An SRS communication is then transmitted according to the SRS configuration. In another example, a transmission capability reporting is received from a scheduled entity comprising at least four antennas. A determination is then made of whether the scheduled entity may simultaneously support SRS antenna switching and an UL MIMO communication. An SRS configuration is then generated for the scheduled entity based on the determination in which a default SRS configuration configures at least one antenna to simultaneously support the SRS antenna switching and the UL MIMO communication.
    Type: Application
    Filed: March 1, 2021
    Publication date: September 9, 2021
    Inventors: Le LIU, Alberto RICO ALVARINO, Peter GAAL, Alexandros MANOLAKOS, Wanshi CHEN
  • Patent number: 11116002
    Abstract: Some techniques and apparatuses described herein provide for the determination of a gap for a scheduled communication involving multiple, different TBs. For example, some techniques and apparatuses described herein provide for the determination of a gap between two or more PDSCHs that are scheduled by a same DCI based at least in part on a UE capability, such as a processing time or a processing mode. Some techniques and apparatuses described herein provide for the determination of a gap between a last PDSCH and a next PDCCH based at least in part on the UE capability. The gap(s) may permit the UE to successfully receive and/or decode multiple PDSCHs and/or PDCCHs in view of the limitations imposed by the UE's processing time or processing mode. In this way, efficiency of PDSCH/PDCCH resource utilization may be improved, the likelihood of a failed PDCCH transmission is reduced, and network efficiency is improved.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: September 7, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Le Liu, Alberto Rico Alvarino, Raghavendra Shyam Ananda
  • Patent number: 11116015
    Abstract: An aspect of the present disclosure includes methods, systems, and computer-readable media for receiving, at the UE, a random access response including a first signal via a first physical channel and a second signal via a second physical channel from a base station (BS), generating a connection request based on the random access response, estimating a carrier to interference plus noise ratio (CINR) of a random-access channel based on at least one the first signal or the second signal, and sending a message including the CINR and the connection request to the BS in response to the random access response.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: September 7, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Srikanth Menon, Raghavendra Shyam Ananda, Praveen Maruthoormana Purushothaman, Alberto Rico Alvarino, Mungal Singh Dhanda, Le Liu
  • Publication number: 20210274479
    Abstract: The present disclosure relates to methods and devices for flexible resource allocation. In one aspect, a base station can generate a narrowband data channel including a plurality of resource blocks (RBs). The base station may shift a position of the RBs of the narrowband data channel to align with a wideband resource block group (RBG) boundary. The base station can also adjust a precoding resource block group (PRG) for the narrowband data channel. Also, the base station can transmit the narrowband data channel to a User Equipment (UE) based on adjusting the PRG. In another aspect, the base station may align a beginning or last RB of the plurality of RBs with the wideband RBG boundary and/or align a beginning or last RB of the PRG with the wideband RBG boundary. In another aspect, the base station may transmit an indication to the UE indicating a flexible resource allocation.
    Type: Application
    Filed: August 6, 2019
    Publication date: September 2, 2021
    Inventors: Chao WEI, Le LIU, Alberto RICO ALVARINO
  • Publication number: 20210274568
    Abstract: Apparatus, methods, and computer-readable media for facilitating using of pre-configured UL resources to transmit grant-free data or reference signals are disclosed herein. An example method for wireless communication by a UE includes transmitting, to a base station, a capability of the UE to transmit data in a first message of a random access procedure. The example method also includes receiving pre-configured UL resources from the base station. The example method also includes transmitting data in the first message of the random access procedure using the pre-configured UL resources.
    Type: Application
    Filed: July 22, 2019
    Publication date: September 2, 2021
    Inventors: Ayan SENGUPTA, Alberto RICO ALVARINO, Le LIU, Chao WEI, Umesh PHUYAL, Wanshi CHEN
  • Patent number: 11109295
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may measure a physical channel such as a narrowband physical broadcast channel (NPBCH) to supplement (e.g., or as an alternative to) reference signal measurements when determining a received signal measurement, such as a received signal strength or received signal quality of a cell. A base station may transmit an indication to a UE that identifies the frequency at which a portion of NPBCH transmissions (e.g., reserved fields of a master information block (MIB)) is expected to change from one NPBCH transmission to another. The UE may adjust its utilization of NPBCH for determining the received signal measurement based on the indication. Further, the UE may communicate with the cell based on the determination of the received signal measurement, which are based on the indication.
    Type: Grant
    Filed: May 19, 2019
    Date of Patent: August 31, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Alberto Rico Alvarino, Mungal Singh Dhanda, Le Liu, Umesh Phuyal, Tae Min Kim
  • Patent number: 11108487
    Abstract: A method of a user equipment (UE) in a wireless communication system comprises receiving, from a base station (BS), at least one physical broadcasting channel (PBCH) symbol containing resource elements (REs) mapped for at least one demodulation reference signal (DMRS) sequence over a downlink channel; and determining DMRS REs included in the at least one PBCH symbol, wherein a synchronization signal (SS) block hypotheses is carried in the at least one DMRS sequence that is mapped into the DMRS REs, and wherein the SS block hypotheses includes at least full or partial SS block indices.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: August 31, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hongbo Si, Le Liu, Eko Onggosanusi, Youngbum Kim, Taehyoung Kim
  • Publication number: 20210259961
    Abstract: The present invention belongs to the field of medicine and relates to a pharmaceutical composition for preventing and treating NITM and a medical use thereof. Specifically, the pharmaceutical composition is an ophthalmic pharmaceutical composition such as an ophthalmic preparation. Specifically, the present invention relates to a pharmaceutical composition comprising 0.001% to 0.2% of atropine or a pharmaceutically acceptable salt thereof, and one or more pharmaceutically acceptable excipients; wherein the pH value of the pharmaceutical composition is of 4.0 to 6.5; the pharmaceutical composition comprises 0.5% to 5% of a pH adjusting agent, and the pH adjusting agent is any one or more selected from sodium dihydrogen phosphate, disodium hydrogen phosphate, citric acid, citrate, boric acid and borates. The pharmaceutical composition of the present invention can effectively treat and/or prevent NITM, and thus has a good application prospect.
    Type: Application
    Filed: November 5, 2018
    Publication date: August 26, 2021
    Inventors: Ningli Wang, Jidong Liu, Lei Guo, Qiang Yang, Kun Gao, Linwei Li, Hong Gu, Yang Sun, Le Fu
  • Publication number: 20210266957
    Abstract: Methods, systems, and devices for wireless communications are described. A communication device, otherwise known as a user equipment (UE) may transmit a random access message (e.g., a message 3) associated with a random access procedure. A hybrid automatic repeat request (HARQ) feedback may be disabled for the random access procedure. The UE may initiate a contention resolution window associated with the random access procedure for a first downlink data channel transmission of a set of downlink data channel transmissions associated with the random access procedure. The UE may receive, during the contention resolution window, the first downlink data channel transmission carrying a contention resolution medium access control-control element (MAC-CE). The UE may transmit acknowledgment information for the first downlink data channel transmission carrying the contention resolution MAC-CE based on an indication to enable the HARQ feedback.
    Type: Application
    Filed: February 18, 2021
    Publication date: August 26, 2021
    Inventors: Bharat Shrestha, Umesh Phuyal, Xiao Feng Wang, Alberto Rico Alvarino, Ayan Sengupta, Prasad Reddy Kadiri, Le Liu
  • Publication number: 20210258978
    Abstract: Some techniques and apparatuses described herein allocate and/or transmit a narrower bandwidth value for LTE MTC UEs, such as UEs that operate in a small bandwidth mode using LTE procedures, and allocate and/or transmit a wider bandwidth value for 5G MTC UEs, such as UEs that can perform hopping and/or be allocated resources outside of a legacy bandwidth. For example, the wider bandwidth value may be associated with a non-LTE carrier (e.g., a 5G carrier in a 5G bandwidth) with the same center frequency as an LTE carrier associated with the narrower bandwidth value. Some techniques and apparatuses described herein provide for initial access, signaling, paging, random access, unicast communications, frequency hopping, cell-specific reference signaling, narrowband alignment, and/or other coexistence considerations for LTE MTC UEs operating on an LTE carrier and 5G MTC UEs operating on a non-LTE carrier with a bandwidth that includes the LTE carrier.
    Type: Application
    Filed: June 6, 2019
    Publication date: August 19, 2021
    Inventors: Chao WEI, Alberto RICO ALVARINO, Le LIU, Umesh PHUYAL, Wanshi CHEN, Hao XU
  • Publication number: 20210258879
    Abstract: The disclosure discloses a high-efficiency short training field sequence generation method, a signal sending method, a signal receiving method, and related apparatuses, where the high-efficiency short training sequence generation method includes: increasing frequency domain density of a frequency domain sequence corresponding to a first high-efficiency short training field sequence to generate a frequency domain sequence with increased frequency domain density; generating a second high-efficiency short training field sequence according to the frequency domain sequence with increased frequency domain density; and using the second high-efficiency short training field sequence as a high-efficiency short training field sequence in a preamble sequence of a data transmission frame in a wireless local area network WLAN.
    Type: Application
    Filed: February 26, 2021
    Publication date: August 19, 2021
    Inventors: Wei LIN, Le LIU, Jun ZHU, Weishan LU
  • Publication number: 20210258201
    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may enable selection of a modulation order (Qm) parameter, a transport block size (TBS) parameter, a quantity of subframes in a transport block (NSF) parameter, and/or the like. For example, based at least in part on receiving a downlink control information or another factor, a user equipment may select, for example, a table of Qm, TBS, and NSF values and may select a particular set of a Qm value, a TBS value, and an NSF value from the table. In this way, the UE may use a higher order modulation and coding scheme in, for example, a narrowband Internet of Things deployment.
    Type: Application
    Filed: February 11, 2021
    Publication date: August 19, 2021
    Inventors: Ayan SENGUPTA, Alberto RICO ALVARINO, Le LIU
  • Publication number: 20210258120
    Abstract: A method, an apparatus, a base station, a user equipment, and a computer program product for wireless communication are provided. The base station may configure resource allocation for wakeup signaling based at least in part on one or more resource patterns corresponding to different user equipment groups and/or antenna port configurations. The user equipment may receive a wakeup signal based at least in part on the resource allocation, detect the wakeup signal based at least in part on a preamble of the wakeup signal, and receive a subsequent communication based at least in part on the wakeup signal. Numerous other aspects are provided.
    Type: Application
    Filed: May 5, 2021
    Publication date: August 19, 2021
    Inventors: Le LIU, Alberto RICO ALVARINO, Peter Pui Lok ANG
  • Publication number: 20210250964
    Abstract: Methods, systems, and devices for wireless communications are described for identifying a modulation and coding scheme (MCS) independently of a channel quality indicator (CQI) table that is configured at a user equipment (UE). A rate matching parameter may be determined based on one or more of the MCS or CQI table, which may be used for dimensioning a soft buffer that is used to store received transmissions for decoding. The MCS field may be a six-bit field and may indicate an MCS that exceeds a highest MCS associated with the CQI table. The base station may activate a semi-persistent scheduling (SPS) configuration at the UE through an activation command, and the UE may verify that SPS is activated based on information in a number of different fields of control information which may include the MCS field.
    Type: Application
    Filed: April 23, 2021
    Publication date: August 12, 2021
    Inventors: Alberto Rico Alvarino, Le Liu