Patents by Inventor Yiqing Cao

Yiqing Cao 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: 20240155592
    Abstract: Certain aspects of the present disclosure provide techniques for bandwidth part (BWP) switching by frequency shifting and/or by transmission configuration indicator (TCI) state configuration. A method that may be performed by a user equipment (UE) includes receiving a BWP configuration indicating a frequency location and bandwidth of at least a first BWP; receiving signaling indicating at least one frequency shift to determine a second BWP from a frequency location of the first BWP; and communicating on the second BWP after performing a BWP switch from the first BWP to the second BWP based on the at least one frequency shift.
    Type: Application
    Filed: April 5, 2021
    Publication date: May 9, 2024
    Inventors: Liangping MA, Xiao Feng WANG, Alberto RICO ALVARINO, Peter GAAL, Ayan SENGUPTA, Jun MA, Huilin XU, Bharat SHRESTHA, Umesh PHUYAL, Juan MONTOJO, Changhwan PARK, Wanshi CHEN, Yiqing CAO
  • Publication number: 20240147440
    Abstract: The present disclosure relates to methods and devices for wireless communication including an apparatus, e.g., a UE and/or base station. The apparatus may determine an UL Tx switching procedure including a plurality of switching cases, the UL Tx switching procedure associated with one or more Tx chains and/or one or more antenna ports, at least one of the one or more Tx chains or the one or more antenna ports corresponding to one or more CCs. The apparatus may also configure at least one of the one or more Tx chains or the one or more antenna ports associated with a target switching case of the plurality of switching cases. Further, the apparatus may transmit at least one UL transmission based on the configured at least one of the one or more Tx chains or the one or more antenna ports associated with the target switching case.
    Type: Application
    Filed: April 17, 2021
    Publication date: May 2, 2024
    Inventors: Peter GAAL, Yiqing CAO, Alberto RICO ALVARINO, Kazuki TAKEDA
  • Publication number: 20240137958
    Abstract: Methods, systems, and devices for wireless communication are described. In some wireless communications systems, a user equipment (UE) may support two or more uplink switching periods for transmit chain switching. The UE may transmit a UE capability message indicating the UE capability to support a first uplink switching period and a second uplink switching period for transmit chain switching. The first uplink switching period and the second uplink switching period may each correspond to different switching periods associated with configuration switches between different transmit chain configurations of the UE. The UE and a base station may select an uplink switching period from among the first uplink switching period and the second uplink switching period. The UE may transmit an uplink data message to the base station after a preparation time that is based on the uplink switching period.
    Type: Application
    Filed: April 28, 2021
    Publication date: April 25, 2024
    Inventors: Yiqing CAO, Peter GAAL, Timo Ville VINTOLA, Alberto RICO ALVARINO, Kazuki TAKEDA, Wanshi CHEN, Bin HAN, Yan LI, Zhimin DU
  • Publication number: 20240121830
    Abstract: RACH occasion repetition and PRACH format selection in an NTN are disclosed. The base station may determine, based on at least one beam, a first PRACH configuration for at least one first UE and a second PRACH configuration for at least one second UE. The base station may transmit, to at least one of the at least one first UE or the at least one second UE, an indication of the first PRACH configuration and the second PRACH configuration. The UE, based on whether it is a first UE or a second UE, may select, based on the received indication, the first PRACH configuration or the second PRACH configuration for at least one beam. The UE may initiate, via the at least one beam, a RACH procedure for the selected first PRACH configuration or the selected second PRACH configuration.
    Type: Application
    Filed: March 22, 2021
    Publication date: April 11, 2024
    Inventors: Liangping MA, Xiao Feng WANG, Hung Dinh LY, Gokul SRIDHARAN, Jun MA, Ayan SENGUPTA, Alberto RICO ALVARINO, Bharat SHRESTHA, Umesh PHUYAL, Peter GAAL, Juan MONTOJO, Wanshi CHEN, Huilin XU, Yiqing CAO
  • Patent number: 11929958
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may detect interference, in a remote interference management (RIM) scenario, in a set of sub-bands of a plurality of sub-bands of a bandwidth portion. The base station may transmit, to identify the set of sub-bands in which interference is detected, a set of reference signals configured to indicate the set of sub-bands in which the interference is detected. Numerous other aspects are provided.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: March 12, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Yuwei Ren, Chao Wei, Yiqing Cao, Huilin Xu, Yu Zhang, Hao Xu, Tingfang Ji
  • Patent number: 11930521
    Abstract: The described techniques relate to improved methods, systems, devices, and apparatuses that support interference mitigation for remote devices. A first wireless device (e.g., a base station) may detect remote interference with its communications caused by a second wireless device (e. g., a second, remote base station) based on, for example, a measured interference over thermal noise level exceeding a threshold. The first wireless device may identify a set of time-frequency resources for remote interference reference signals and a data transmission for a user equipment (UE) that is in communication with the first wireless device. The first wireless device may transmit a remote interference signal to a second wireless device (e. g., a second base station) via the set of time-frequency resources. The first wireless device may further signal a resource allocation to the UE for the UE to use for transmitting uplink transmissions to the first wireless device.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: March 12, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Yiqing Cao, Wanshi Chen, Yuwei Ren, Chenxi Hao, Huilin Xu, Tingfang Ji
  • Publication number: 20240080838
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information that indicates an uplink transmit switching configuration for performing uplink transmit switching between a first component carrier and a second component carrier and a sounding reference signal (SRS) carrier switching configuration for performing SRS carrier switching between the second component carrier and a third component carrier, wherein the configuration information is associated with a maximum number of allowable switches over an amount of time. The UE may transmit, based at least in part on the configuration information, one or more signals associated with performing at least one of uplink transmit switching or SRS carrier switching. Numerous other aspects are described.
    Type: Application
    Filed: March 12, 2021
    Publication date: March 7, 2024
    Inventors: Yiqing CAO, Peter GAAL, Alberto RICO ALVARINO, Enoch Shiao-Kuang LU, Wanshi CHEN, Kazuki TAKEDA, Bin HAN, Yan LI, Zhimin DU
  • Publication number: 20240080884
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may transmit, and a user equipment (UE) may receive, signaling that indicates at least a first random access channel (RACH) occasion (RO) partition and a second RO partition. The first RO partition may be associated with different uplink transmission capabilities than the second RO partition. The UE may select an RO in the first RO partition or the second RO partition based at least in part on a metric that relates to an uplink transmission capability of the UE. The UE may transmit, and the network node may receive, a preamble in the selected RO to initiate a RACH procedure. Numerous other aspects are described.
    Type: Application
    Filed: March 22, 2021
    Publication date: March 7, 2024
    Inventors: Liangping MA, Xiao Feng WANG, Alberto RICO ALVARINO, Ayan SENGUPTA, Peter GAAL, Juan MONTOJO, Jun MA, Bharat SHRESTHA, Umesh PHUYAL, Yiqing CAO, Huilin XU, Wanshi CHEN, Changhwan PARK
  • Patent number: 11917657
    Abstract: Sequence selection techniques for Non-Orthogonal Multiple Access (NOMA) are provided. A User Equipment (UE) sends a request to a base station, the request indicating that the UE is to conduct at least one uplink transmission. The UE receives, in response to the request, an indicator of an expected system load, a value of the indicator including a total number of sequences expected to be used at one time for uplink transmissions in the system. The UE detects that at least two different pairs of sequences in a configured set of sequences have different cross correlation values, the sequences in the set configured for scrambling uplink transmissions. The UE selects, in response to the detecting and based on the indicator, at least one sequence with an improved cross correlation with at least one other sequence the at least one sequence and the at least one other sequence to be used for scrambling uplink transmissions within the system.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: February 27, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Yiqing Cao, Jing Lei, Renqiu Wang, Tingfang Ji
  • Patent number: 11915601
    Abstract: Various aspects and features related to wireless communication for unmanned vehicles or inspection routes are described. In an aspect of the disclosure, a method, a computer-readable medium, a system, and an apparatus are provided. A method of wireless communication includes identifying a plurality of checkpoints for an inspection route corresponding to a mobile communication device. The method includes identifying a task status for a current checkpoint of the plurality of checkpoints, the task status indicating a status of one or more tasks corresponding to the current checkpoint. The method includes sending a report to a communication device indicating the task status for the current checkpoint.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: February 27, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Yiqing Cao, Wanshi Chen, Jing Lei
  • Patent number: 11895708
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive an indication of a resource configuration for a random access (RA) procedure. The resource configuration may identify multiple sets of transmission resources corresponding to multiple radio resource control (RRC) states. The UE may identify an RRC state and may determine a set of transmission resources and/or a transport format based on the indication of the resource configuration, the identified RRC state, and/or a UE identifier (UE ID). The UE may transmit a first RA procedure message (e.g., a msgA) using the determined transmission resources and/or transport format. The base station may receive the message and may identify the RRC state of the UE based on the first message and transmitted indication of the resource configuration. The base station may transmit a second RA procedure message (e.g., a msgB), which the UE may receive.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: February 6, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Jing Lei, Seyong Park, Joseph Binamira Soriaga, Yi Huang, Yiqing Cao, Tingfang Ji, Juan Montojo, Peter Gaal, Wanshi Chen
  • Publication number: 20240039672
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication for a reference signal to be transmitted on a first carrier, wherein the UE is configured for reference signal carrier switching between the first carrier and a second carrier associated with uplink data channel or control channel transmission. The UE may receive an indication for uplink transmission switching between the second carrier and a third carrier. The UE may transmit, or suspend transmission, on the third carrier during a time associated with transmission of the reference signal on the first carrier based at least in part on the UE being configured for reference signal carrier switching and uplink transmission switching. Numerous other aspects are described.
    Type: Application
    Filed: February 19, 2021
    Publication date: February 1, 2024
    Inventors: Peter GAAL, Yiqing CAO, Alberto RICO ALVARINO, Yan LI, Kazuki TAKEDA
  • Patent number: 11848893
    Abstract: Certain aspects of the present disclosure provide techniques for cell group configuration and backhaul coordination for remote interference management. Aspects of the present disclosure provide a method for communications by a base station (BS). The BS receives a first configuration configuring a cell in at least one group of cells and configuring the cell with a group identification (ID). The BS receives a second configuration configuring the cell for at least one of: remote interference management reference signal (RIM-RS) transmission or RIM-RS detection. The BS performs a remote interference management procedure based on at least the first configuration and the second configuration.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: December 19, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Xipeng Zhu, Huilin Xu, Yiqing Cao, Yuwei Ren, Gavin Bernard Horn
  • Patent number: 11849440
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive information identifying an offset between a start of a frame on a first component carrier and a start of a frame on a second component carrier, wherein the first component carrier is one of a primary cell (PCell) or a secondary cell (SCell), and wherein the second component carrier is the other of the PCell or the SCell; determine that a slot on the first component carrier is aligned with a slot on the second component carrier; identify the slot on the second component carrier in accordance with the offset; and communicate on the first component carrier or the second component carrier based at least in part on the start of the slot on the second component carrier. Numerous other aspects are provided.
    Type: Grant
    Filed: February 6, 2023
    Date of Patent: December 19, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Peter Gaal, Yiqing Cao, Wei Yang
  • Publication number: 20230354246
    Abstract: A UE includes: an interface comprising at least one of a receiver and a transmitter; a memory; and a processor, communicatively coupled to the interface and the memory, configured to: identify a processing conflict for an exchange of a first UE-to-UE location reference signal and an exchange of a first radio-network-interface signal; determine a priority of the exchange of the first UE-to-UE location reference signal and the exchange of the first radio-network-interface signal; and exchange, via the interface, one of the first UE-to-UE location reference signal or the first radio-network-interface signal according to the priority.
    Type: Application
    Filed: August 5, 2020
    Publication date: November 2, 2023
    Inventors: Yiqing CAO, Wanshi CHEN, Sony AKKARAKARAN, Alexandros MANOLAKOS, Jing LEI
  • Publication number: 20230354380
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive, from a first base station associated with a first operator, a broadcast transmission conveying a first portion of a communication; and may receive, without triggering a retransmission of the broadcast transmission, a second portion of the communication via a unicast transmission from a second base station associated with a second operator. Numerous other aspects are provided.
    Type: Application
    Filed: April 3, 2020
    Publication date: November 2, 2023
    Inventors: Yiqing CAO, Yan LI, Thomas STOCKHAMMER, Zhimin DU
  • Publication number: 20230354318
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to perform dual uplink transmissions on two different operating bands of a carrier aggregation configuration. The UE may communicate on a primary cell associated with a primary component carrier and a secondary cell associated with a secondary component carrier. The UE may generate uplink control information (UCI) for the secondary cell, which is mapped to an uplink shared transmission of the primary cell. In some cases, however, the UE may identify that uplink transmission switching is to occur prior to the transmission of the UCI, such that UE may not map the UCI to the uplink shared transmission of the primary cell. Accordingly, the UE may modify a cell mapping for the transmission of the UCI based on the identified uplink transmission switching.
    Type: Application
    Filed: December 4, 2020
    Publication date: November 2, 2023
    Inventors: Yiqing CAO, Peter GAAL, Wanshi CHEN, Alberto RICO ALVARINO
  • Publication number: 20230354473
    Abstract: Aspects described herein relate to managing and/or configuring, for a user equipment (UE), unicast and/or multicast radio bearers for unicast and/or multicast cells based on measurement reports generated by the UE.
    Type: Application
    Filed: March 20, 2020
    Publication date: November 2, 2023
    Inventors: Yiqing CAO, Yan LI, Thomas STOCKHAMMER, Zhimin DU
  • Patent number: 11792675
    Abstract: Aspects are provided allowing a first base station to distinguish between cross-link interference and remote interference caused to a second base station and to apply different mitigation mechanisms based on the type of interference. A UE receives from a second base station a reference signal based on a reference signal identifier that indicates a location of the second base station that is experiencing interference from the first base station. The UE sends to the first base station an indication of the reference signal received from the second base station. The first base station receives from the UE the indication of the reference signal from the second base station based on the reference signal identifier. The first base station applies a mitigation mechanism based on whether the reference signal identifier indicates that the second base station is a remote base station or a neighbor base station.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: October 17, 2023
    Assignee: QUALCOMM INCORPORATED
    Inventors: Yiqing Cao, Huilin Xu, Wanshi Chen, Yuwei Ren
  • Patent number: 11765747
    Abstract: This disclosure provides systems, methods and apparatus, and computer programs encoded on computer storage media, for managing cross-carrier scheduling. In one aspect, a processor of a wireless device may determine whether downlink control information (DCI) received from a secondary cell schedules communications on a primary cell, and may determine cross-carrier scheduling of communications on the primary cell in response to determining that the DCI received from the secondary cell schedules communications on the primary cell. In another aspect, processor of a network device may schedule communications on the primary cell in the DCI of the secondary cell, and may perform cross-carrier scheduling of communications on the primary cell based on the DCI of the secondary cell.
    Type: Grant
    Filed: June 27, 2022
    Date of Patent: September 19, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Kazuki Takeda, Alberto Rico Alvarino, Wanshi Chen, Peter Gaal, Yiqing Cao