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).

  • Patent number: 11770867
    Abstract: An association establishment method and apparatus, for carrying out the method are described. The association establishment method includes broadcasting, by an access point (AP), a trigger frame, wherein the trigger frame is used to trigger one or more unassociated stations STAs to perform uplink data transmission and indicate one or more available subchannels for random accessing of the unassociated STAs. The method further includes receiving, by the AP, one or more association request messages sent on available subchannels acquired by the unassociated STAs. Thereafter, the AP broadcasts a multi-block acknowledgement M-BA frame, wherein the M-BA frame includes one or more pieces of association acknowledgement information and the association acknowledgement information is acknowledgement information of the association request message.
    Type: Grant
    Filed: May 23, 2022
    Date of Patent: September 26, 2023
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Ming Gan, Le Liu, Yunbo Li, Meilu Lin
  • Publication number: 20230300874
    Abstract: Aspects described herein relate to indicating search spaces and/or control information formats for receiving multicast/broadcast service (MBS) downlink control information (DCI). A device can receive a search space configuration defining one or more search spaces for detecting communications intended for a group of one or more user equipment (UEs), determine a priority for detecting control information transmitted over a control channel based on the one or more search spaces, and perform, based on the priority, detection for the control information over the control channel based on the one or more search spaces and/or the other defined search spaces.
    Type: Application
    Filed: March 23, 2023
    Publication date: September 21, 2023
    Inventors: Le LIU, Alberto RICO ALVARINO, Peter GAAL, Xiaoxia ZHANG, Tao LUO, Kazuki TAKEDA, Prasad Reddy KADIRI, Ayan SENGUPTA, Umesh PHUYAL
  • Patent number: 11765739
    Abstract: In methods, systems, and devices for wireless communications, a user equipment (UE) may receive a downlink control information (DCI) block including DCI for a set of transport blocks scheduled for the UE, the DCI including a set of fields. The UE may decode the DCI block to obtain the DCI for the set of transport blocks, where at least two fields of the downlink control information are jointly decoded according to an encoding scheme, and where each possible output of the encoding scheme corresponds to a jointly valid combination of the at least two fields. The UE may receive the set of transport blocks from a base station based on the DCI.
    Type: Grant
    Filed: November 2, 2021
    Date of Patent: September 19, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Ayan Sengupta, Alberto Rico Alvarino, Le Liu
  • Patent number: 11758488
    Abstract: This disclosure provides systems, methods, and devices for wireless communication that support mechanisms for determining a transmit power of a paging early indication (PEI) transmission. In particular, a user equipment (UE) receives a PEI from a base station indicating whether the UE is being paged during a paging occasion. The UE determines a transmit power of the PEI transmission. In some aspects, the UE determines the transmit power of the PEI transmission based on a configuration of the PEI provided to the UE, which may include an indication of the PEI transmission power as an absolute power value and/or a power offset value with respect to another transmission, signal, or channel. In some aspects, the transmit power of the PEI transmission is based on whether the PEI transmission is a beamformed transmission.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: September 12, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Huilin Xu, Le Liu, Wooseok Nam
  • Publication number: 20230284010
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network entity, a UE capability information request message. The UE may transmit, to the network entity in response to the UE capability information request message, a UE capability information message indicating one or more antenna capabilities of the UE. Numerous other aspects are described.
    Type: Application
    Filed: February 27, 2023
    Publication date: September 7, 2023
    Inventors: Chiranjib SAHA, Alberto RICO ALVARINO, Umesh PHUYAL, Le LIU, Kazuki TAKEDA, Peter GAAL
  • Patent number: 11750341
    Abstract: Methods, apparatuses, and computer program products for wireless communication are provided. A user equipment (UE) may be configured to determine a phase rotation for a symbol based at least in part on a tone index. The UE may be configured to apply the phase rotation to the received symbol, and transmit the uplink symbol. Numerous other aspects are provided.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: September 5, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Chao Wei, Xiao Feng Wang, Alberto Rico Alvarino, Le Liu, Wanshi Chen
  • Patent number: 11751195
    Abstract: In embodiments of systems and methods for managing control signaling for multicast communications, a base station may transmit to a wireless device an indication of whether to monitor a group common physical downlink control channel (GC PDCCH), a wireless device-specific PDCCH for multicast configuration information, or both. The base station may determine a schedule for transmitting multicast communications to the wireless device based on a capability reported by the wireless device, and may transmit to the wireless device an indication of whether a transport block for GC multicast communications including services for multicast communications will be scheduled by the GC PDCCH, the wireless device-specific PDCCH, or both. The base station may transmit, and the wireless device may receive, the multicast communications according to the multicast configuration information and the schedule.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: September 5, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Le Liu, Kazuki Takeda, Alberto Rico Alvarino
  • Patent number: 11743821
    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: Grant
    Filed: December 7, 2022
    Date of Patent: August 29, 2023
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Wei Lin, Le Liu, Jun Zhu, Weishan Lu
  • Patent number: 11743814
    Abstract: In a legacy gNB (e.g., pre-Rel. 17 gNB), RC UEs with only 1 or 2 receive antennas may have a geographic coverage area for control data and traffic data that is smaller than their geographic coverage area for SSB with respect to certain legacy gNBs. By contrast, at least some new gNBs (e.g., Rel. 17+ gNBs) have the capability to provide uniform geographic coverage for RC UEs with respect to SSB, control data and traffic data. In an aspect of the disclosure, a particular class of UEs (such as RC UEs) is steered towards particular cells (e.g., Rel. 17+ gNBs) via one or more biased class-specific cell selection parameters included in system information from the cells.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: August 29, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Le Liu, Alberto Rico Alvarino, Peter Gaal, Wanshi Chen, Tingfang Ji, Hung Dinh Ly, Renqiu Wang, Xiaoxia Zhang, Huilin Xu, Linhai He, Peter Pui Lok Ang, Jing Lei
  • Publication number: 20230269619
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a network entity, capability information relating to a capability of the UE for processing unicast and multicast physical downlink shared channel (PDSCH) transmissions. The UE may receive configuration information that indicates unicast parameters for unicast PDSCH transmissions and multicast parameters for multicast PDSCH transmissions. The UE may receive at least one of one or more unicast PDSCH transmissions or one or more multicast PDSCH transmissions in a slot in a serving cell in accordance with a maximum soft buffer size associated with the UE and a maximum data rate associated with the UE, wherein the maximum soft buffer size and the maximum data rate are based at least in part on at least one of the unicast parameters or the multicast parameters. Numerous other aspects are described.
    Type: Application
    Filed: February 15, 2023
    Publication date: August 24, 2023
    Inventors: Le LIU, Alberto RICO ALVARINO, Peter GAAL, Jae Ho RYU, Hari SANKAR, Rebecca Wen-Ling YUAN, Hobin KIM, Sanghoon KIM
  • Patent number: 11736239
    Abstract: A method for wireless communication performed by a user equipment (UE) includes receiving, from a base station, a first indication to disable hybrid automatic repeat request (HARQ) feedback for a number of instances of a multicast transport block (TB). The method also includes receiving, from the base station, a second indication identifying a value of the number of instances of the multicast TB. The method further includes receiving, from the base station, one or more instances of the multicast TB. The method still further includes determining, based on the one or more received instances, whether the multicast TB is recoverable. The method further includes selectively transmitting, to the base station, HARQ feedback after all instances of the multicast TB have been transmitted by the base station based on the determination of whether the multicast TB is recoverable.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: August 22, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Le Liu, Alberto Rico Alvarino, Kazuki Takeda, Wanshi Chen, Tao Luo, Ayan Sengupta, Xiaoxia Zhang, Peter Gaal
  • Publication number: 20230261805
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network entity, configuration information associated with a semi-static hybrid automatic repeat request (HARQ) feedback codebook for multicast messages. The UE may receive, from the network entity, a physical downlink control channel (PDCCH) message, associated with a radio network temporary identifier (RNTI), scheduling one or more multicast physical downlink shared channel (PDSCH) messages. The UE may transmit, to the network entity, one or more fallback HARQ feedback indications, associated with the one or more multicast PDSCH messages, in lieu of transmitting the semi-static HARQ feedback codebook, in accordance with the configuration information and associated with at least one of the RNTI or a feedback configuration associated with the RNTI. Numerous other aspects are provided.
    Type: Application
    Filed: January 4, 2023
    Publication date: August 17, 2023
    Inventors: Le LIU, Kazuki TAKEDA, Alberto RICO ALVARINO, Peter GAAL
  • Publication number: 20230261843
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network entity, an uplink grant for a physical uplink shared channel (PUSCH) that is to overlap in time with a physical uplink control channel (PUCCH) used for hybrid automatic repeat request (HARQ) feedback for at least multicast, the uplink grant including a downlink assignment index (UL-DAI) indication that indicates at least one of: whether the HARQ feedback of the PUCCH is to be multiplexed on the PUSCH, or a size for the HARQ feedback. The apparatus may communicate, with the network entity, in accordance with the UL-DAI indication. Numerous other aspects are described.
    Type: Application
    Filed: November 22, 2022
    Publication date: August 17, 2023
    Inventors: Le LIU, Alberto RICO ALVARINO, Mostafa KHOSHNEVISAN, Peter GAAL, Kazuki TAKEDA
  • Patent number: 11729769
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a configuration for a group-common physical downlink shared channel (PDSCH), where the group-common PDSCH is repeated for a number of repetitions. Accordingly, the UE may determine this number of repetitions and then monitor for the group-common PDSCH based on the number of repetitions. In some implementations, the group-common PDSCH may include a semi-static repetition scheme, where the number of repetitions is indicated via a group aggregation factor. Additionally or alternatively, the group-common PDSCH may include a dynamic repetition scheme, where the number of repetitions is indicated via a group repetition number. Additionally, the techniques described herein may enable the configuration for the repeated group-common PDSCH to include gaps between each repetition of the group-common PDSCH and for the UE to transmit acknowledgment feedback for the repetitions of the group-common PDSCH.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: August 15, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Le Liu, Alberto Rico Alvarino, Peter Gaal, Kazuki Takeda, Jing Sun, Wanshi Chen, Ayan Sengupta, Juan Montojo, Mostafa Khoshnevisan, Prasad Reddy Kadiri
  • Publication number: 20230254858
    Abstract: A radio communication system includes: a plurality of cells having different scrambling sequences, respectively, wherein at least two cells communicate with at lease two user terminals connected to different serving cells; and a controller which controls the plurality of cells and provides a single scrambling sequence to said at least two cells and said at least two user terminals for control signal transmission and reception.
    Type: Application
    Filed: April 14, 2023
    Publication date: August 10, 2023
    Applicant: NEC Corporation
    Inventors: Le LIU, Yoshikazu KAKURA, Naoto ISHII, Takamichi INOUE
  • Publication number: 20230254734
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, a multicast message or a broadcast message that uses a radio link control (RLC) format associated with an RLC acknowledged mode (RLC-AM). The UE may decode the multicast message or the broadcast message to identify information associated with an RLC unacknowledged mode (RLC-UM) based at least in part on a capability of the UE. The UE may operate in accordance with the RLC-UM based at least in part on decoding the multicast message or the broadcast message. Numerous other aspects are provided.
    Type: Application
    Filed: April 13, 2023
    Publication date: August 10, 2023
    Inventors: Umesh PHUYAL, Alberto RICO ALVARINO, Prasad Reddy KADIRI, Le LIU, Kazuki TAKEDA
  • Patent number: 11722278
    Abstract: Quasi-colocation (QCL) indication is discussed after downlink transmission. In the management of multiple transmission-reception point (TRP) downlink transmissions, a second indication of a QCL assumption for a particular downlink transmission may be transmitted to receiving user equipment (UEs) after transmission of the downlink transmission. Once a TRP passes a listen before talk (LBT) procedure in a first time interval, it may send a first downlink control information (DCI) with indication of a first QCL assumption for the transmission in the first time interval. The TRP then transmits the downlink transmission intended for part of the multi-TRP downlink transmission. Upon receiving an indication that another of the TRPs was unsuccessful in its part of the multi-TRP transmission, the TRP may transmit a second DCI in a subsequent time interval with adjustments to the QCL assumption for the UEs to use in processing the downlink transmission from the first time interval.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: August 8, 2023
    Assignee: QUALCOMM INCORPORATED
    Inventors: Mostafa Khoshnevisan, Xiaoxia Zhang, Tao Luo, Peter Gaal, Le Liu, Wanshi Chen, Alberto Rico Alvarino, Juan Montojo
  • Publication number: 20230239845
    Abstract: Certain aspects of the present disclosure provide techniques for indicating capability of a user equipment (UE) to support multiple sounding reference signals (SRSs) with a single subframe, with at least one of frequency hopping, different bandwidths, or antenna switching for the multiple SRSs in the same subframe.
    Type: Application
    Filed: March 31, 2023
    Publication date: July 27, 2023
    Inventors: Alberto RICO ALVARINO, Le LIU, Peter GAAL, Supratik BHATTACHARJEE, Qiang SHEN, Rebecca Wen-ling YUAN
  • Patent number: 11711825
    Abstract: Methods, systems, and devices for wireless communications are described. A set of uplink control channel resources that are configured for acknowledgment transmissions may be shared among user equipments (UEs) that are enabled to receive multicast communications. Each of the shared set of uplink control channel resources may be associated with set(s) of channel state information. UEs may measure a multicast channel to determine channel state information for the multicast channel. After failing to receive a multicast transmission, UEs may transmit an acknowledgment feedback message over one of the shared uplink control channel resources that is associated with the set of channel state information determined by the UE. A base station that receives the acknowledgment feedback message may transmit a multicast retransmission for the UEs using transmission parameters that are adapted for the set(s) of channel state information associated with the occupied uplink control channel resource.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: July 25, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Kazuki Takeda, Alberto Rico Alvarino, Ayan Sengupta, Jing Sun, Le Liu, Miguel Griot, Mostafa Khoshnevisan, Peter Gaal, Prasad Reddy Kadiri, Xiaoxia Zhang, Tao Luo, Umesh Phuyal, Wanshi Chen
  • Patent number: 11711321
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a first transmission including encoded bits of a data packet and a second transmission including some or all of the encoded bits of the data packet. The first transmission associated with a first limited buffer rate matching (LBRM) configuration and the second transmission may be associated with a second LBRM configuration. The UE may process the first transmission and the second transmission based on the first LBRM associated with the first transmission being different than the second LBRM associated with the second transmission.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: July 25, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Alberto Rico Alvarino, Peter Gaal, Le Liu, Kazuki Takeda, Ayan Sengupta