Patents by Inventor Yitao Chen

Yitao Chen 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: 20230106730
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration of physical downlink control channel (PDCCH) repetition and multi-downlink control information reception wherein, for at least one of a first or second control resource set (CORESET) pool index, a first monitoring occasion (MO) of a first linked search space set, associated with a first CORESET and having a first transmission configuration indicator (TCI) state, overlaps with a second MO of a second linked search space set associated with a second CORESET having a second TCI state. The UE may monitor PDCCH communications in the overlapping monitoring occasions based on a determination of a plurality of monitored CORESETs, wherein the determination is based on a first rule, a second rule, or a third rule, associated with a plurality of quasi co-location monitoring properties. Numerous other aspects are described.
    Type: Application
    Filed: September 22, 2022
    Publication date: April 6, 2023
    Inventors: Yitao CHEN, Mostafa KHOSHNEVISAN, Xiaoxia ZHANG, Tao LUO
  • Publication number: 20230101753
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a mobile station may receive configuration information indicating sounding reference signal (SRS) resource sets, the configuration information indicating: a first set of SRS resource sets, of the SRS resource sets, associated with a first downlink control information (DCI) format, and a second set of SRS resource sets, of the SRS resource sets, associated with a second DCI format, wherein at least one of the first set or the second set comprises at least two of the SRS resource sets. The mobile station may transmit, based at least in part on the configuration information, at least one uplink communication using at least one SRS resource of at least one of the SRS resource sets of at least one of the first set or the second set. Numerous other aspects are described.
    Type: Application
    Filed: August 29, 2022
    Publication date: March 30, 2023
    Inventors: Mostafa KHOSHNEVISAN, Yitao CHEN, Xiaoxia ZHANG
  • Publication number: 20230100662
    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, an indication of uplink grants for physical uplink shared channel (PUSCH) messages, wherein the PUSCH messages include a first PUSCH message and a second PUSCH message that at least partially overlap in a time domain. The UE may transmit, to the base station, at least one of the first PUSCH message or the second PUSCH message based at least in part on one or more conditions for simultaneous PUSCH transmissions, wherein the one or more conditions are associated with at least one of: a resource alignment of the first PUSCH message and the second PUSCH message, or a demodulation reference signal (DMRS) alignment of the first PUSCH message and the second PUSCH message. Numerous other aspects are described.
    Type: Application
    Filed: September 29, 2021
    Publication date: March 30, 2023
    Inventors: Mostafa KHOSHNEVISAN, Yitao CHEN, Xiaoxia ZHANG
  • Patent number: 11617179
    Abstract: Methods, systems, and devices for wireless communications are described that support enhanced methods for indicating random access transmission beams. For example, a user equipment (UE) may transmit a set of uplink reference signals to a base station, each uplink reference signal corresponding to a respective uplink beam. The base station may receive the uplink reference signals and may determine signal qualities for the uplink beams. The base station may identify one or more uplink beams for the UE to use in subsequent random access procedures and may transmit control signaling to the UE indicating one or more beams for random access procedure transmissions. The UE may transmit random access messages to the base station using an uplink beam selected based on the control signaling received from the base station.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: March 28, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Mostafa Khoshnevisan, Yitao Chen, Jing Sun, Xiaoxia Zhang
  • Patent number: 11601159
    Abstract: An apparatus may determine a mode in association with frequency/beam hopping. The mode may be configured semi-statically through RRC signaling and/or dynamically through a MAC-CE. The apparatus may determine the mode based on the RRC signaling/MAC-CE in order to switch between different configurations of frequency and beam hopping for single-beam and multi-beam PUCCH transmissions. The apparatus is configured to receive a PUCCH resource IE for a PUCCH resource indicating a PUCCH resource intra-slot frequency hopping configuration. The apparatus is configured to determine whether multiple PUCCH beams are activated for the PUCCH resource. The apparatus is configured to determine a mode for frequency hopping and beam hopping for the PUCCH resource based on at least one of the PUCCH resource intra-slot frequency hopping configuration, or the determination whether multiple PUCCH beams are activated. The apparatus is configured to transmit on the PUCCH resource based on the determined mode.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: March 7, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Mostafa Khoshnevisan, Yitao Chen, Xiaoxia Zhang
  • Publication number: 20230068275
    Abstract: This disclosure provides systems, methods, and devices for wireless communication that support a shared transmission power control (TPC) for uplink data and control channels. In a first aspect, a method includes a user equipment (UE) receiving a TPC command in downlink control messages from a serving base station. Each TPC command includes a power correction indicator. The UE may then apply an accumulation of power correction indicators received in the downlink control messages to an adjustment state associated with a transmit power of an of uplink control channel and an uplink data channel. The UE transmits to an uplink receive point, the uplink control or data channel according to the transmit power adjusted by the accumulation of power correction indicators applied to the adjustment state. Other aspects and features are also claimed and described.
    Type: Application
    Filed: August 26, 2021
    Publication date: March 2, 2023
    Inventors: Mostafa Khoshnevisan, Yitao Chen, Xiaoxia Zhang
  • Publication number: 20230061877
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a first control message indicating an uplink power control configuration for the UE. The uplink power control configuration may be associated with a power control identifier and a resource set identifier. The UE may receive a second control message that schedules an uplink message for the UE. The second control message may indicate the resource set identifier and the power control identifier for transmission of the uplink message. The UE may determine a transmit power for the uplink message based on a set of power control parameters, the set of power control parameters corresponding to the resource set identifier and the power control identifier. The UE may transmit the uplink message using a resource set associated with the resource set identifier and in accordance with the determined transmit power.
    Type: Application
    Filed: August 30, 2022
    Publication date: March 2, 2023
    Inventors: Mostafa Khoshnevisan, Yitao Chen, Xiaoxia Zhang, Tao Luo, Fang Yuan
  • Patent number: 11595921
    Abstract: The present disclosure relates to methods and devices for wireless communication including an apparatus, e.g., a UE and/or TRP. In one aspect, the apparatus can receive, on a first CC, first DCI from a first TRP and second DCI from a second TRP, the first DCI indicating one of a first set of TCI states and the second DCI indicating one of a second set of TCI states. The apparatus can also receive, on a second CC, a first PDSCH from the first TRP and a second PDSCH from the second TRP, a first time offset being between the first DCI and the first PDSCH and a second time offset being between the second DCI and the second PDSCH. The apparatus can also determine a QCL assumption based on at least one of the first time offset, the second time offset, and a QCL time duration.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: February 28, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Yitao Chen, Mostafa Khoshnevisan, Xiaoxia Zhang, Tao Luo
  • Patent number: 11589327
    Abstract: Various embodiments include methods for managing uplink timing advance configuration of wireless devices by a base station. A wireless device may send an initial access signal to a base station, receive from the base station an initial timing advance value responsive to the initial access signal, and send to the base station a next signal comprising a Physical Random Access Channel (PRACH) waveform via uplink (UL) receive (Rx) points over two or more beams. The base station may receive the next signal including the PRACH waveform via the two or more UL Rx points, select a refined timing advance value based on the signal, and send the refined timing advance value to the wireless device. The wireless device may receive the refined timing advance value and send a further signal to the base station via one of the UL Rx points using the refined timing advance.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: February 21, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Xiaoxia Zhang, Yitao Chen, Jing Sun, Mostafa Khoshnevisan
  • Publication number: 20230043507
    Abstract: Methods, systems, and devices for sounding reference signal (SRS) resource indicator (SRI) association for configured grant (CG) based transmission and reception point (TRP) physical uplink shared channel (PUSCH) transmission are described. In some examples, a user equipment (UE) may receive first control signaling indicating a first and second sounding reference signal (SRS) resource set associated with a first and second set of power control parameter, respectively. The UE may receive second control signaling indicating a CG configuration, the first and second power control parameters for transmissions in the CG configuration. In some examples, the UE may determine a configuration status for one or more fields the first control signaling, the second control signaling, or both. The UE may select an SRS resource set based on the configuration status and may transmit one or more CG uplink transmissions with the CG configuration using the selected SRS resource set.
    Type: Application
    Filed: August 3, 2021
    Publication date: February 9, 2023
    Inventors: Yitao Chen, Mostafa Khoshnevisan, Jing Sun, Xiaoxia Zhang
  • Publication number: 20230041585
    Abstract: This disclosure provides methods, devices, and systems supporting power control parameter configuration for configured grants (CGs). In some implementations, a user equipment (UE) may receive control signaling configuring multiple sounding reference signal (SRS) resource sets and multiple sets of power control parameters for CG uplink transmission. The UE may receive downlink control information (DCI) scheduling a retransmission and indicating which set of power control parameters the UE is to use for the CG uplink retransmission. In some other implementations, the control signaling may configure multiple SRS resources sets but a single set of power control parameters. The UE may receive DCI activating the CG configuration or scheduling a retransmission, the DCI indicating a second set of power control parameters not configured by the control signaling. The UE may automatically use the power control parameters configured by the control signaling or may determine a second set based on the DCI.
    Type: Application
    Filed: August 3, 2021
    Publication date: February 9, 2023
    Inventors: Mostafa Khoshnevisan, Yitao Chen, Jing Sun, Xiaoxia Zhang
  • Publication number: 20230045623
    Abstract: This disclosure provides methods for transmissions and retransmissions over a configured grant (CG) physical uplink shared channel (PUSCH) and for transmissions over physical uplink control channel (PUCCH) resources in multi-transmission and reception point (TRP) deployments. A user equipment (UE) may receive signaling configuring a first set of power control parameters and a second set of power control parameters for a CG-PUSCH resource. Additionally or alternatively, the UE may receive signaling activating a first closed-loop power control operation and a second closed-loop power control operation for a PUCCH resource. In some scenarios, the UE may receive a fallback downlink control information (DCI) format activating or scheduling the CG-PUSCH resource or indicating the PUCCH resource. In such scenarios, the UE may employ one or both of a power control selection rule or a transmit power control (TPC) command application rule for a transmission over the CG-PUSCH resource or the PUCCH resource.
    Type: Application
    Filed: August 3, 2021
    Publication date: February 9, 2023
    Inventors: Yitao Chen, Mostafa Khoshnevisan, Jing Sun, Xiaoxia Zhang
  • Publication number: 20230035886
    Abstract: Methods, systems, and devices for wireless communications are described. In some aspects, a user equipment (UE) may receive control signaling scheduling transmission of aperiodic channel state information (A-CSI) via a set of uplink transmission repetitions, the set of uplink transmission repetitions including a first set of repetitions associated with a first sounding reference signal (SRS) resource set and a second set of repetitions associated with a second SRS resource set. The UE may receive additional control signaling scheduling transmission of an uplink control channel message that overlaps in time with at least one uplink transmission repetition of the set of uplink transmission repetitions. The UE may multiplex the uplink control channel message with at least one uplink transmission repetition of the set of uplink transmission repetitions, and may transmit the set of uplink transmission repetitions including multiple repetitions of the A-CSI and the multiplexed uplink control channel message.
    Type: Application
    Filed: July 30, 2021
    Publication date: February 2, 2023
    Inventors: Yitao Chen, Mostafa Khoshnevisan, Tao Luo, Xiaoxia Zhang
  • Publication number: 20230031429
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to receive control signaling scheduling multiple uplink transmission repetitions including first and second sets of repetitions associated with first and second sounding reference signal (SRS) resource sets, respectively. The UE may determine first and second power headroom (PHR) values for the respective sets of repetitions, where at least the second PHR value is determined in accordance with a first rule as either an actual value based on a transmission power of one of the uplink transmission repetitions or a virtual value based on default transmission power settings, the first rule pertaining to PHR determination for multiple sets of repetitions corresponding to multiple SRS resource sets. The UE may generate a PHR report that includes the first PHR value, the second PHR value, or both, and may transmit the PHR report to the base station.
    Type: Application
    Filed: July 30, 2021
    Publication date: February 2, 2023
    Inventors: Mostafa Khoshnevisan, Yitao Chen, Peter Gaal, Xiaoxia Zhang, Tao Luo
  • Publication number: 20230020898
    Abstract: Various embodiments include methods for managing uplink timing advance configuration of wireless devices by a base station. A wireless device may send an initial access signal to a base station, receive from the base station an initial timing advance value responsive to the initial access signal, and send to the base station a next signal comprising a Physical Random Access Channel (PRACH) waveform via uplink (UL) receive (Rx) points over two or more beams. The base station may receive the next signal including the PRACH waveform via the two or more UL Rx points, select a refined timing advance value based on the signal, and send the refined timing advance value to the wireless device. The wireless device may receive the refined timing advance value and send a further signal to the base station via one of the UL Rx points using the refined timing advance.
    Type: Application
    Filed: July 15, 2021
    Publication date: January 19, 2023
    Inventors: Xiaoxia Zhang, Yitao Chen, Jing Sun, Mostafa Khoshnevisan
  • Patent number: 11539394
    Abstract: A system and method for mitigating self-interference in mmWave systems. A transceiver can include a mutual precoder controller that controls both an analog/RF beamforming circuit and a digital/BB beamforming circuit to prefer beams directed along paths in the local RF environment that minimize self-interference. In other cases, a transceiver can include one or more self-interference filters to internally mitigate self-interference.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: December 27, 2022
    Assignee: GENXCOMM, INC.
    Inventors: Ian P. Roberts, Hardik B. Jain, Sriram Vishwanath, Yitao Chen, Rajesh K. Mishra, Dan Schwartz
  • Publication number: 20220376869
    Abstract: In one aspect, an apparatus of wireless communication at a user equipment includes receiving, during a radio resource control (RRC) setup, a sounding reference signal (SRS) resource set configuration including a specified time offset x. The UE may receive downlink control information (DCI) in a later time slot and an instruction to trigger the SRS resource set. The UE determines, based on information from the SRS configuration or the DCI, a starting position within a time slot for transmitting an SRS resource. The UE transmits, at the starting position x slots after the later time slot, a reference SRS resource selected from the SRS resource set, followed sequentially by the remaining resources. In another aspect a UE that receives a t value of multiple t values may transmit the reference resource in a (t+1)th time slot from a reference slot.
    Type: Application
    Filed: May 21, 2021
    Publication date: November 24, 2022
    Inventors: Yitao Chen, Mostafa Khoshnevisan, Jing Sun, Xiaoxia Zhang
  • Publication number: 20220369243
    Abstract: Certain aspects of the present disclosure provide techniques for communicating using power control parameters for multiple transmitter receiver point (mTRP) physical uplink shared channel (PUSCH) repetition. A method that may be performed by a user equipment (UE) includes receiving a sounding reference signal (SRS) configuration indicating at least a first SRS resource set and at least a second SRS resource set, receiving downlink control information (DCI) scheduling a first set of one or more PUSCH repetitions to a first TRP and a second set of one or more PUSCH repetitions to a second TRP, and transmitting the first and second sets of PUSCH repetitions using at least one of a first set of default power control parameters or a second set of default power control parameters.
    Type: Application
    Filed: February 28, 2022
    Publication date: November 17, 2022
    Inventors: Yitao CHEN, Mostafa KHOSHNEVISAN, Fang YUAN, Tao LUO
  • Publication number: 20220369382
    Abstract: Aspects of the disclosure relate to a wireless communication device selecting an uplink (UL) power level for an initial message in a random access procedure. For example, the wireless communication device may receive, via a transceiver, an indication that indicates an UL power level calculation technique to use for a random access procedure. The wireless communication device may further determine an UL power level for an initial message in the random access procedure using the UL power level calculation technique. The wireless communication device may further transmit, via the transceiver, the initial message for the random access procedure using the UL power level. Other aspects, embodiments, and features are also claimed and described.
    Type: Application
    Filed: May 14, 2021
    Publication date: November 17, 2022
    Inventors: Mostafa KHOSHNEVISAN, Yitao CHEN, Jing SUN, Xiaoxia ZHANG
  • Publication number: 20220368472
    Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for a user equipment (UE) receiving control messages that schedule a first and second set of repetitions of an uplink transmission to respective transmission/reception points (TRPs). The one or more control messages may be indicative of a first redundancy version (RV) sequence that is to be applied to the first set of repetitions and a second RV sequence that is to be applied to the second set of repetitions. The control messages may also indicate a first set of power control parameters and a second set of power control parameters. The UE may map the first and second set of power control parameters to the first and second set of repetitions according to a rule. The UE may transmit the first and second sets of repetitions according to the respective RV sequences and power control parameters.
    Type: Application
    Filed: May 10, 2022
    Publication date: November 17, 2022
    Inventors: Yitao Chen, Mostafa Khoshnevisan, Xiaoxia Zhang