Patents by Inventor LINGLING XIAO

LINGLING XIAO 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: 20240205959
    Abstract: Methods and apparatus of enhanced candidate allocation schemes for enhanced PDCCH are disclosed. The method includes: receiving, by a receiver, configurations of a plurality of search space sets that are linked for a Physical Downlink Control Channel (PDCCH) transmission with a plurality of repetitions; wherein the plurality of repetitions of the PDCCH are transmitted on a plurality of candidates; determining, by a processor, according to a priority rule with a predefined granularity, by counting the candidates from the linked search space sets, whether there is sufficient candidate resource available for allocation; and allocating, by the processor, the candidates, upon determining that there is sufficient candidate resource available for allocation.
    Type: Application
    Filed: March 22, 2021
    Publication date: June 20, 2024
    Applicant: Lenovo (Beijing) Limited
    Inventors: Yi Zhang, Chenxi Zhu, Bingchao Liu, Wei Ling, Lingling Xiao
  • Publication number: 20240205919
    Abstract: Embodiments of the present disclosure relate to methods and apparatuses for multiple transmit-receive point (M-TRP) based physical uplink shared channel (PUSCH) transmission. According to an embodiment of the present disclosure, a method can include: receiving configuration information of a first sounding reference signal (SRS) resource set and a second SRS resource set for a codebook or non-codebook based PUSCH transmission; receiving a configured (CG) configuration for the PUSCH transmission, wherein the CG configuration includes one or two sets of power control parameters, and each set of power control parameter is associated with one SRS resource set of the first SRS resource set or the second SRS resource set; receiving downlink control information (DCI) scheduling a PUSCH retransmission corresponding to the PUSCH transmission according to the CG configuration; and determining at least one set of power control parameters for the PUSCH retransmission.
    Type: Application
    Filed: August 5, 2021
    Publication date: June 20, 2024
    Inventors: Lingling XIAO, Bingchao LIU, Chenxi ZHU, Wei LING, Yi ZHANG
  • Publication number: 20240195573
    Abstract: Methods and apparatuses for separate indication of DL TCI state and UL TCI state are disclosed. A method comprises receiving an MAC CE updating the mapping of multiple TCI codepoints and associated TCI state(s), wherein, each TCI codepoint is associated with one UL TCI state or one DL TCI state or both one DL TCI state and one UL TCI state.
    Type: Application
    Filed: April 9, 2021
    Publication date: June 13, 2024
    Applicant: Lenovo (Beijing) Limited
    Inventors: Bingchao Liu, Chenxi Zhu, Wei Ling, Yi Zhang, Lingling Xiao
  • Publication number: 20240188170
    Abstract: Methods and apparatuses for are disclosed. A method comprises receiving a MAC CE indicating a PF value and a value indicating a starting position koffset in frequency domain for a SRS resource: and transmitting the SRS resource in mP contiguous resource blocks starting from k0(pi)+koffset, where mP is the largest integer that is equal to or smaller than (I), wherein mSRS,BSRS is the allocated sounding frequency band of the SRS resource configured by RRC signaling. and k0(pi) is the start position of the SRS resource determined by RRC signaling.
    Type: Application
    Filed: April 6, 2021
    Publication date: June 6, 2024
    Applicant: Lenovo (Beijing) Limited
    Inventors: Bingchao Liu, Chenxi Zhu, Wei Ling, Yi Zhang, Lingling Xiao
  • Publication number: 20240187995
    Abstract: Embodiments of the present application are related to a method and apparatus for PUSCH transmission with repetitions. An exemplary method includes: receiving DCI scheduling a plurality of repetitions of a PUSCH transmission, wherein there is at least one open-loop power control parameter set indication in the DCI; receiving configuration information associated with the PUSCH transmission, indicating: a first and a second SRS resource sets, a mapping pattern, and at least one list of P0-PUSCH-Set, wherein a first part of the plurality of repetitions is associated with the first SRS resource set and a second part of the plurality of repetitions is associated with the second SRS resource set according to the mapping pattern: and transmitting the first part and second part of the plurality of repetitions according to a first P0 value and a second P0 value respectively determined based on the received DCI and configuration information.
    Type: Application
    Filed: April 1, 2021
    Publication date: June 6, 2024
    Applicant: Lenovo (Beijing) Limited
    Inventors: Wei Ling, Chenxi Zhu, Bingchao Liu, Yi Zhang, Lingling Xiao
  • Patent number: 12003444
    Abstract: Apparatuses, methods, and systems are disclosed for determining resources for phase tracking reference signals. One method (500) includes determining (502) a first set of resources. The first set of resources are used for non-zero power phase tracking reference signals for a first downlink transmission and zero power phase tracking reference signals for a second downlink transmission. The method (500) includes determining (504) a second set of resources. The second set of resources are used for zero power phase tracking reference signals for the first downlink transmission and non-zero power phase tracking reference signals for the second downlink transmission. The method (500) includes transmitting (506) the first downlink transmission using the first set of resources and the second set of resources. The first downlink transmission is transmitted concurrently with the second downlink transmission.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: June 4, 2024
    Assignee: Lenovo (Beijing) Limited
    Inventors: Chenxi Zhu, Bingchao Liu, Wei Ling, LingLing Xiao
  • Publication number: 20240178977
    Abstract: Methods and apparatus of enhanced Physical Downlink Control Channel (PDCCH) candidate monitoring are disclosed. The method includes: receiving, by a receiver, configurations of a plurality of search space sets that are linked for a Physical Downlink Control Channel (PDCCH) transmission with a plurality of repetitions; wherein the plurality of repetitions of the PDCCH are transmitted on a plurality of linked candidates; determining, by a processor, whether there is a collision between at least one of the linked candidates and a reserved resource; and providing, by the processor, a candidate monitoring scheme in response to a determination that a first candidate of the linked candidates collides with the reserved resource.
    Type: Application
    Filed: April 1, 2021
    Publication date: May 30, 2024
    Applicant: Lenovo (Beijing) Limited
    Inventors: Yi Zhang, Chenxi Zhu, Bingchao Liu, Wei Ling, Lingling Xiao
  • Patent number: 11985516
    Abstract: Embodiments of the present disclosure are directed to a method and apparatus for TRP downlink transmission. In an embodiment of the present disclosure, the apparatus includes at least one transmitter that transmits a spatial information configuration for downlink transmission. The spatial information configuration configures at least one time unit for at least one of predefined spatial information and un-predefined spatial information. In the case that the time unit is configured for the predefined spatial information, the downlink transmission is transmitted according to the predefined spatial information. In the case that the time unit is configured for un-predefined spatial information, the downlink transmission is transmitted according to the spatial information indicated in the specific spatial information in the downlink control channel or configured by the high layer signaling.
    Type: Grant
    Filed: November 23, 2018
    Date of Patent: May 14, 2024
    Assignee: Lenovo (Beijing) Limited
    Inventors: Wei Ling, Chenxi Zhu, Bingchao Liu, Lingling Xiao
  • Publication number: 20240106609
    Abstract: Methods and apparatus of restriction on linked ePDCCH candidates for ePDCCH soft combining are disclosed. The method includes: receiving, by a receiver, a plurality of Control Resource Set (CORESET) configurations, a plurality of search space set configurations, and a Physical Downlink Control Channel (PDCCH) transmitted with a plurality of repetitions; wherein the plurality of repetitions of the PDCCH are transmitted from a plurality of transmitting-receiving identities, and one CORESET is associated with one search space set; and determining, by a processor, linked monitoring occasions and/or linked candidates for blind detection of the PDCCH with soft combining.
    Type: Application
    Filed: December 30, 2020
    Publication date: March 28, 2024
    Applicant: Lenovo (Beijing) Limited
    Inventors: Yi Zhang, Chenxi Zhu, Bingchao Liu, Wei Ling, Lingling Xiao
  • Publication number: 20240098520
    Abstract: Methods and apparatuses for MAC CE based common beam indication are disclosed. In one embodiment, a method comprises receiving a higher layer parameter to enable MAC CE based common beam indication; receiving a common beam indication MAC CE; and determining a common beam according to the common beam indication MAC CE.
    Type: Application
    Filed: January 14, 2021
    Publication date: March 21, 2024
    Applicant: Lenovo (Beijing) Limited
    Inventors: Bingchao Liu, Chenxi Zhu, Wei Ling, Yi Zhang, Lingling Xiao
  • Publication number: 20240072981
    Abstract: Apparatuses, methods, and systems are disclosed for downlink control information having a transmission configuration indicator bitmap. One method (400) includes transmitting (402) downlink control information with a transmission configuration indicator, spatial information, or a combination thereof and a transmission configuration indicator bitmap field. Each bit in the transmission configuration indicator bitmap field indicates whether the transmission configuration indicator, the spatial information, or the combination thereof applies to a channel or resource group.
    Type: Application
    Filed: January 7, 2021
    Publication date: February 29, 2024
    Inventors: Chenxi Zhu, Bingchao Liu, Wei Ling, Yi Zhang, Lingling Xiao
  • Publication number: 20240063880
    Abstract: Embodiments of the present application are related to a method and apparatus for uplink transmission. An exemplary method of the present application includes: receiving a downlink control information (DCI) indicating a set of common transmission configuration indication (TCI) states for uplink transmission; and in response to the set of common TCI states being applicable for the uplink transmission, transmitting uplink transmission with repetition according to at least part of the set of common TCI states; or transmitting uplink transmission without repetition according to one of the set of common TCI states or an additional TCI state instead of the set of common TCI states.
    Type: Application
    Filed: January 11, 2021
    Publication date: February 22, 2024
    Inventors: Wei Ling, Chenxi Zhu, Bingchao Liu, Yi Zhang, Lingling Xiao
  • Publication number: 20240063959
    Abstract: Methods and apparatuses for inter-cell multi-TRP operation are disclosed. In one embodiment, a method comprises receiving a configuration of different CORESETPoolIndex values for different CORESETs, wherein, CORESETPoolIndex=0 is associated with a PCID of a serving cell and the higher layer parameter CORESETPoolIndex=1 is associated with a PCID of a non-serving cell that is different from the PCID of the serving cell; and receiving a configuration of a SSB from the non-serving cell configured as a RS to the signal associated with CORESETPoolIndex=1.
    Type: Application
    Filed: January 12, 2021
    Publication date: February 22, 2024
    Applicant: Lenovo (Beijing) Limited
    Inventors: Bingchao Liu, Chenxi Zhu, Wei Ling, Yi Zhang, Lingling Xiao
  • Publication number: 20240064765
    Abstract: Apparatuses, methods, and systems are disclosed for DCI feedback. One method (400) includes transmitting (402) DCI to a user equipment. The DCI comprises a transmission configuration indicator field, and the transmission configuration indicator field signals at least one common beam for transmissions on at least one channel, at least one reference signal resource, or a combination thereof. The method (400) includes receiving (404) a hybrid automatic repeat request codebook from the user equipment. The hybrid automatic repeat request codebook comprises a DCI feedback bit indicating whether the user equipment successfully received the DCI.
    Type: Application
    Filed: January 14, 2021
    Publication date: February 22, 2024
    Inventors: Chenxi Zhu, Bingchao Liu, Wei Ling, Yi Zhang, Lingling Xiao
  • Patent number: 11909473
    Abstract: Methods, a base unit and a remote unit are disclosed. A method comprises determining two or more SRS resource sets for codebook or non-codebook based UL transmission of the mobile unit in the condition that the number of antenna ports simultaneously used by the mobile unit for transmitting is smaller than the number of antenna ports simultaneously used by the mobile unit for receiving; and transmitting a trigger associated with the two or more SRS resource sets to the mobile unit to trigger SRS resource transmissions by the mobile unit.
    Type: Grant
    Filed: July 19, 2022
    Date of Patent: February 20, 2024
    Assignee: Lenovo (Beijing) Limited
    Inventors: Bingchao Liu, Chenxi Zhu, Lingling Xiao
  • Publication number: 20240057113
    Abstract: Apparatuses, methods, and systems are disclosed for transmission timing based on downlink control information. One method (600) includes transmitting (602) first downlink control information indicating a first transmission configuration indicator for a user equipment to receive a first physical downlink shared channel transmission. The method (600) includes transmitting (604) the first physical downlink shared channel transmission with the first transmission configuration indicator if a time between the first downlink control information and the first physical downlink shared channel transmission is greater than or equal to a first time. The method (600) includes transmitting (606) second physical downlink shared channel transmissions with the first transmission configuration indicator after a second time, wherein the second time is after a first acknowledgement corresponding to the first downlink control information has been received.
    Type: Application
    Filed: January 5, 2021
    Publication date: February 15, 2024
    Inventors: Chenxi Zhu, Bingchao Liu, Wei Ling, Yi Zhang, Lingling Xiao
  • Publication number: 20240057075
    Abstract: Embodiments of the present disclosure relate to a method and apparatus for multiple transmit-receive points (multi-TRP) transmission. According to an embodiment of the present disclosure, a method can include: receiving at least two configured grant (CG) configurations in a bandwidth part (BWP); receiving association information for associating the at least two CG configurations; and transmitting one or more repetitions of a transport block (TB) on one or more physical uplink shared channel (PUSCH) transmission occasions from each CG configuration of the at least two CG configurations based on the association information. Embodiments of the present disclosure can support the TB transmitted toward multi-TRP according to the multiple CG configurations.
    Type: Application
    Filed: December 25, 2020
    Publication date: February 15, 2024
    Applicant: Lenovo (Beijing) Limited
    Inventors: Lingling Xiao, Bingchao Liu, Chenxi Zhu, Wei Ling, Yi Zhang
  • Publication number: 20240015525
    Abstract: Disclosed are methods for an uplink signal transmission. One embodiment of the subject application provides a method performed by a UE, including determining a spatial relation for a Physical Uplink Shared Channel transmission scheduled by Downlink Control Information format 0_0 in response to that a Physical Uplink Control Channel resource with the lowest Identification among at least one PUCCH resource configured in an active uplink bandwidth part of a serving cell is activated with at least two spatial relations, and performing the PUSCH transmission at least according to the spatial relation with a transmission power calculated based on a pathloss reference signal. Related apparatuses are also disclosed.
    Type: Application
    Filed: November 30, 2020
    Publication date: January 11, 2024
    Applicant: Lenovo (Beijing) Limited
    Inventors: Lingling Xiao, Bingchao Liu, Chenxi Zhu, Wei Ling, Yi Zhang
  • Publication number: 20240015740
    Abstract: The present application relates to a method and an apparatus for downlink transmission in physical downlink control channel. The method includes: determining at least one transmission configuration indicator (TCI) state for receiving a physical down-link shared channel (PDSCH) or an aperiodic channel state information reference signal (AP CSI-RS), wherein multiple TCI states are activated for at least one control resource set (CORESET) in active bandwidth part (BWP) in serving cell; and receiving the PDSCH or the AP CSI-RS according to the determined at least one TCI state.
    Type: Application
    Filed: July 31, 2020
    Publication date: January 11, 2024
    Inventors: Lingling Xiao, Bingchao Liu, Chenxi Zhu, Wei Ling, Yi Zhang
  • Publication number: 20230413257
    Abstract: Embodiments of the present disclosure relate to methods and apparatus for semi-persistent scheduling (SPS) downlink transmission. According to an embodiment of the present disclosure, a method may include: receiving a set of first downlink control information (DCI) on at least one control resource set (CORESET) for activating a set of SPS configurations, wherein each CORESET is configured with a CORESETPoolIndex, and each of the set of first DCI activates a corresponding one of the set of SPS configurations; and receiving a set of second DCI on at least one first CORESET configured with a first CORESETPoolIndex, wherein each second DCI only deactivates first one or more SPS configurations of the set of SPS configurations activated by first one or more first DCI received on one or more CORESETs configured with the first CORESETPoolIndex.
    Type: Application
    Filed: October 10, 2020
    Publication date: December 21, 2023
    Inventors: Lingling XIAO, Bingchao LIU, Chenxi ZHU, Wei LING, Yi ZHANG