Patents by Inventor Xiao Feng

Xiao Feng 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: 11909424
    Abstract: In certain embodiments, an apparatus includes a switch matrix and frequency band isolation circuitry. The switch matrix is configured to receive, at an input port, an electrical signal, which corresponds to a transmission signal received at antennas of an antenna array. The transmission signal corresponds to a transmission spatial sector of the array. The electrical signal includes first and second signal portions in first and second frequency bands, respectively, the electrical signal having been generated from an optical signal that corresponds to the transmission signal. The switch matrix is configured to direct, via an output port and in accordance with a control signal, the electrical signal to a first of multiple signal conversion paths.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: February 20, 2024
    Assignees: Futurewei Technologies, Inc., Phase Sensitive Innovations, Inc.
    Inventors: Stefano Galli, Munawar Kermalli, Xiao-Feng Qi, Shouyuan Shi, Dennis Prather, Janusz Murakowski, Garrett Schneider
  • Patent number: 11909573
    Abstract: Methods, systems, and devices for wireless communications are described. A device (e.g., a base station or a user equipment (UE)) may identify a sequence length corresponding to a number of resource blocks, and select a modulation scheme based on the sequence length. The device may select, from a set of sequences associated with the modulation scheme, a sequence having the sequence length. In some examples, the set of sequences may include at least one of a set of time domain phase shift keying computer-generated sequences or a set of frequency domain phase shift keying computer-generated sequences. The device may generate a reference signal for a data transmission based on the sequence and transmit the reference signal within the number of resource blocks.
    Type: Grant
    Filed: March 30, 2023
    Date of Patent: February 20, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Wei Yang, Yi Huang, Seyong Park, Gokul Sridharan, Peter Gaal, Alexandros Manolakos, Xiao Feng Wang, Tingfang Ji
  • Patent number: 11909502
    Abstract: Methods, systems, and devices for wireless communications are described. A serving base station or a serving satellite may transmit a timing configuration to the UE based on a reference unit, such as a location at a beam center for a respective satellite, a threshold distance relative to the beam center for the respective satellite, a reference time, or any combination thereof. In some cases, the UE may monitor for one or more SSBs from the neighboring satellites according to the timing configuration and a respective propagation delay between the UE and each of the neighboring satellites. The UE may measure the SSBs according to the measurement gap and measurement window in the timing configuration. In some examples, the UE may perform a cell handover procedure or a cell reselection procedure based on measuring the SSBs.
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: February 20, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Bharat Shrestha, Xiao Feng Wang, Liangping Ma, Alberto Rico Alvarino, Changhwan Park, Ayan Sengupta, Huilin Xu, Jun Ma, Umesh Phuyal, Peter Gaal
  • Patent number: 11907108
    Abstract: A workload is generated to verify a system. The generating includes parsing one or more statements of an input test case to create one or more parsed structures. A comparison is performed of at least one parsed structure of the one or more parsed structures and at least one workload structure of at least one existing workload to identify one or more workload structures as matching the at least one parsed structure. Runtime data relating to at least the one or more workload structures identified as matching is obtained. The workload is created based on at least one matching workload structure of the one or more workload structures identified as matching, the at least one parsed structure of the one or more parsed structures and the runtime data.
    Type: Grant
    Filed: January 5, 2022
    Date of Patent: February 20, 2024
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Xue Bin Cong, Xiao Feng Meng, Ping Liang, Yu He, Peng Hui Jiang
  • Patent number: 11910458
    Abstract: Methods, systems, and devices for wireless communications are described. The method may include establishing a connection between the UE and a network node of a non-terrestrial network, identifying, based on a synchronization failure event and while the UE is in a connected mode in accordance with establishing the connection, that a location failure condition has occurred for the connection, and performing, at least in part in response to the location failure condition, one or more actions of a location failure recovery procedure to restore a synchronization associated with the connection.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: February 20, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Ayan Sengupta, Alberto Rico Alvarino, Xiao Feng Wang, Jun Ma, Peter Gaal, Le Liu, Mungal Singh Dhanda, Bharat Shrestha, Liangping Ma, Umesh Phuyal
  • Publication number: 20240057086
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a duty cycle function corresponding to a duty cycle range. In some cases, the UE may determine the duty cycle function based on a congestion metric. The UE may identify a bandwidth allocation for the UE and may determine a duty cycle within the duty cycle range based on the duty cycle function and the bandwidth allocation. In some cases, the UE may identify one or more of the duty cycle function, the congestion metric, the duty cycle range, or the bandwidth allocation based on control signaling from a base station. The UE may transmit a packet within the bandwidth allocation in accordance with the duty cycle.
    Type: Application
    Filed: October 24, 2023
    Publication date: February 15, 2024
    Inventors: Marco PAPALEO, Shailesh PATIL, Xiao Feng WANG
  • Publication number: 20240056170
    Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive a message from a first non-terrestrial network cell indicating cell synchronization information for a second non-terrestrial network cell. In some examples, the cell synchronization information may indicate whether the first non-terrestrial network cell and the second non-terrestrial network cell are synchronized at a reference point. Additionally, or alternatively, the cell synchronization information may indicate a timing offset value between a first uplink time synchronization reference point of the first non-terrestrial network cell and a second uplink time synchronization reference point of the second non-terrestrial network cell. The UE may calculate a timing associated with signaling from the second non-terrestrial network cell based at least in part on the cell synchronization information.
    Type: Application
    Filed: August 9, 2022
    Publication date: February 15, 2024
    Inventors: Bharat Shrestha, Xiao Feng Wang, Harikumar Krishnamurthy, Liangping Ma, Changhwan Park, Umesh Phuyal, Ayan Sengupta, Alberto Rico Alvarino
  • Patent number: 11902002
    Abstract: Methods, systems, and devices for wireless communications are described. In some networks, a user equipment (UE) may switch between serving beams of a transmitting device that are associated with different bandwidth parts of a radio frequency spectrum. To improve aspects of beam measurement and selection, a UE may be configured to support various techniques for beam measurement according to the different bandwidth parts. For example, a UE may receive a beam measurement configuration associated with one or more beams, and may monitor for reference signals associated with the beams using the different bandwidth parts. The UE may determine a channel quality of one or more of the beams based on the monitoring, and transmit a beam measurement report to the network in accordance with the beam measurement configuration. In some examples, such a report may be transmitted based on the UE determining that an event condition is satisfied.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: February 13, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Liangping Ma, Bharat Shrestha, Xiao Feng Wang, Ayan Sengupta, Peter Gaal, Alberto Rico Alvarino, Umesh Phuyal, Jun Ma, Dan Zhang
  • Patent number: 11902011
    Abstract: In an aspect, a satellite-based non-terrestrial network configures multiple preconfigured uplink resources (PURs) for a user equipment (UE). The PURs may be configured one PUR per beam, one PUR per cell, or one PUR for multiple cells. A serving cell of the UE and one or more cells adjacent to the serving cell may each have an associated PUR. The UE selects one of the multiple PURs and sends a transmission using the selected PUR without the UE have a connection to the network. The network sends an ACK in response to the transmission. Either the UE or the network can specify that the UE is to transmit using a first PUR and receive the ACK on a second PUR. The UE can specify when and which PUR to use in the transmission and the network can specify when and which PUR to use in the ACK.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: February 13, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Huilin Xu, Jing Lei, Liangping Ma, Xiao Feng Wang
  • Patent number: 11902800
    Abstract: Example aspects include a method, apparatus and computer-readable medium of wireless communication at a base station of a mobile network, comprising transmitting system information corresponding to an aerial cell of the mobile network or a cell having at least one aerial sector being formed by one or more uptilt beams of the base station. The aspects further include performing, according to the system information, a random access channel (RACH) procedure with an aerial user equipment (UE). Additionally, the aspects include establishing, via the aerial cell or the at least one aerial sector, a communications link with the aerial UE.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: February 13, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Le Liu, Alberto Rico Alvarino, Peter Gaal, Chiranjib Saha, Umesh Phuyal, Xiao Feng Wang, Juan Montojo, Vishnu Vardhan Chetlur Ravi
  • Patent number: 11902841
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive system information associated with a set of neighboring cells included in a non-terrestrial network (NTN). The UE may be connected to or camped in a current cell included in the NTN. The current cell may be associated with a current platform. The UE may monitor a neighboring cell, of the set of neighboring cells, based at least in part on the system information. Numerous other aspects are provided.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: February 13, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Liangping Ma, Huilin Xu, Jun Ma, Qiang Wu, Xiao Feng Wang, Iyab Issam Sakhnini, Dan Zhang
  • Publication number: 20240048312
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may communicate, before establishing a radio resource control (RRC) connection, support for demodulation reference signal (DMRS) bundling of a message of a random access (RA) procedure. The UE may transmit the message of the RA procedure based at least in part on the support for DMRS bundling. Numerous other aspects are described.
    Type: Application
    Filed: August 3, 2023
    Publication date: February 8, 2024
    Inventors: Liangping MA, Xiao Feng WANG, Changhwan PARK, Alberto RICO ALVARINO, Bharat SHRESTHA, Mahmoud TAHERZADEH BOROUJENI, Gokul SRIDHARAN, Sanghoon KIM, Jae Ho RYU, Peter GAAL
  • Publication number: 20240049336
    Abstract: A user equipment may be configured to implement a procedure for implementing a procedure for updating cell-specific parameters used by a UE in non-terrestrial networks (NTN). In some aspects, the UE may receive, from a network entity, during a modification period of system information, system information including one or more cell-specific parameters. Further, the UE may enter a radio resource configuration (RRC) connected mode based upon receipt of the system information, and transmit an acquisition indication of receipt of the system information, the acquisition indication identifying an instance within the modification period of receipt of the system information.
    Type: Application
    Filed: December 15, 2022
    Publication date: February 8, 2024
    Inventors: Bharat Shrestha, Ayan Sengupta, Xiao Feng Wang, Alberto Rico Alvarino, Umesh Phuyal, Liangping Ma
  • Publication number: 20240049062
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a group discontinuous reception (DRX) configuration. The UE may receive, based on the group DRX configuration, a notification communication indicative of group handover information associated with a group of UEs that includes the UE. The UE may perform, based on the group handover information, a group handover operation between a source cell and a target cell. Numerous other aspects are described.
    Type: Application
    Filed: August 5, 2022
    Publication date: February 8, 2024
    Inventors: Bharat SHRESTHA, Jae Ho RYU, Toru UCHINO, Changhwan PARK, Umesh PHUYAL, Prasad Reddy KADIRI, Le LIU, Xiao Feng WANG, Liangping MA, Alberto RICO ALVARINO, Masato KITAZOE, Ayan SENGUPTA
  • Patent number: 11895608
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a non-terrestrial network (NTN) entity, a message that is associated with an uplink grant. The UE may select, based at least in part on the message, either a cell-specific offset or an updated offset that is indicated after initial access, as a timing offset that accounts for a propagation delay between a base station of the NTN and the UE. The UE may transmit, to the NTN entity, an uplink communication using the timing offset. Numerous other aspects are described.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: February 6, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Liangping Ma, Xiao Feng Wang, Alberto Rico Alvarino, Umesh Phuyal, Jun Ma, Changhwan Park, Ayan Sengupta, Juan Montojo, Peter Gaal, Wanshi Chen, Bharat Shrestha, Huilin Xu
  • Patent number: 11894914
    Abstract: A user equipment (UE) selects or reselects a target cell of a non-terrestrial network or resumes connectivity with the target cell after a satellite handover for a permanently fixed low Earth orbit (LEO) cell. The target cell is a serving or non-serving cell. The UE determines a cell type of the target cell. The cell type may be a LEO cell type, a geostationary Earth orbit (GEO) cell type, a moving cell type, a fixed cell type, a temporarily fixed LEO cell type, or a permanently fixed LEO cell type. The UE completes selection or reselection of the target cell or completes the connectivity with the target cell, based on the cell type.
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: February 6, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Bharat Shrestha, Alberto Rico Alvarino, Xiao Feng Wang, Masato Kitazoe, Ayan Sengupta, Amer Catovic, Umesh Phuyal, Liangping Ma, Le Liu
  • Publication number: 20240036080
    Abstract: Disclosed are an analog quantity acquisition method and apparatus. An acquisition circuit with a zero flux current transformer is first used to acquire a current signal, where the acquisition circuit with the zero flux current transformer includes the zero flux current transformer, a compensating winding, and a dynamic detection unit, and the compensating winding generates a reverse excitation potential to counteract an excitation current and eliminate impacts of a ratio error and a phase angle error on accuracy. A multi-segment amplification circuit is used to perform segmented amplification on different ranges of the current signal, and full-range current acquisition is achieved by using different amplification circuits. An analog-to-digital converter chip is used to convert an amplified current signal into a digital signal. The acquisition circuit with the zero flux current transformer is used to eliminate the impacts of the ratio error and the phase angle error on the measurement accuracy.
    Type: Application
    Filed: September 4, 2023
    Publication date: February 1, 2024
    Inventors: Zhu Liu, Wenjing Li, Yunpeng Li, Yonggui Wang, Chuanjian Cui, Lvchao Huang, Xueyu Han, Jinguo Fang, Xiao Feng, Xiaokang Lin, Yuan Gao, Shunhui Luo, Shuying Cheng, Tengfei Dong, Chao Zhan, Afeng Tan
  • Publication number: 20240040597
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine an inactivity timer associated with a first set of one or more beams used for communicating with a network entity associated with a satellite has expired. The UE may identify location information corresponding to the location of the UE with respect to the network entity. The UE may identify beam geometry information for one or more beams associated with the network entity. For example, the UE may receive the beam geometry information from the network entity. The UE may process the location information and the beam geometry information to identify a second set of one or more beams, the second set different than the first set. The UE and the network entity may communicate according to the second set of one or more beams.
    Type: Application
    Filed: October 10, 2023
    Publication date: February 1, 2024
    Inventors: Liangping MA, Xiao Feng WANG, Alberto RICO ALVARINO, Ayan SENGUPTA, Bharat SHRESTHA, Jun MA, Umesh PHUYAL
  • Patent number: 11889576
    Abstract: Methods, systems, and devices for radio link management are described. In a first example, a user equipment (UE) and a base station may employ a procedure for configuring radio link monitoring reference signals (RLM-RS) for multiple bandwidth parts. In a second example, a UE and a base station may employ a beam failure recovery procedure. In a third example, a UE and a base station may employ one or more radio link failure detection procedures. In a fourth example, a UE and a base station may employ a procedure for establishing a new connection after radio link failure. In a fifth example, a UE and a base station may employ a monitoring procedure that involves a single RLM-RS across multiple bandwidth parts.
    Type: Grant
    Filed: August 11, 2021
    Date of Patent: January 30, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Liangping Ma, Xiao Feng Wang, Alberto Rico Alvarino, Ayan Sengupta, Bharat Shrestha, Umesh Phuyal, Jun Ma
  • Publication number: 20240030705
    Abstract: The present invention provides an interpretable power load prediction method, system and terminal machine, relating to the field of power load prediction. The method comprises: initializing three factors—seasonal factor, trend factor, and smoothing factor, denoted as S1, T1, and I1 respectively; calculating states of the three factors for time t+1 in a current DeepES unit; outputting the three factors St+1, Tt+1, and It+1 to a next DeepES unit; repeating until a n-th DeepES unit completes its operation; calculating a predicted value Y based on the three factors that are outputted from a final DeepES unit. In power load prediction, constructing an interpretable prediction model enables users to understand the inference process of the model, therefore helps enhance the credibility of the model.
    Type: Application
    Filed: September 28, 2023
    Publication date: January 25, 2024
    Inventors: Qiang Li, Zhu Liu, Wenjing Li, Liyuan Gao, Yumin Liu, Feihu Huang, Xuxin Yang, Shilei Dong, Tianyang Li, Honglei Zhao, Meng Ming, Zhongyu Shang, Chunyang Li, Mingtao Cui, Peiyao Zhang, Hongyue Ma, Bin Dai, Dashuai Tan, Xiao Feng, Xiaokang Lin