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: 20220361005
    Abstract: Methods, systems, and devices for wireless communications are described. A wireless communications system may support quasi co-location prioritization techniques. A user equipment (UE) may receive control signaling to monitor at least one control resource set. The UE may receive a control message to monitor a shared data channel that overlaps in time with the at least one control resource set. For example, the control message may schedule a downlink message via the shared data channel in a time period of the at least one control resource set. The UE may monitor the at least one control resource set, the shared data channel, or both based on one or more priority rules. A priority rule may indicate to monitor a corresponding control resource set, shared data channel, or both based on whether the quasi co-location assumptions of the various control resource sets or shared data channels are the same or different.
    Type: Application
    Filed: April 20, 2022
    Publication date: November 10, 2022
    Inventors: Mostafa Khoshnevisan, Yitao Chen, Xiaoxia Zhang, Tao Luo
  • Publication number: 20220360490
    Abstract: Methods, systems, and devices for wireless communication are described. In some wireless communication systems, a user equipment (UE) may receive control signaling from a base station based on an uplink beam failure. The control signaling may indicate one or more uplink beams for uplink communications, and the one or more uplink beams may be decoupled from a downlink beam for downlink communications by the UE. The UE may transmit a feedback message acknowledging the one or more uplink beams for the uplink communications based on receiving the control signaling. The UE may switch from one or more current uplink beams to the one or more uplink beams indicated via the control signaling during a time period after receiving the control signaling. The UE may transmit the uplink communications using the one or more uplink beams based on the feedback message.
    Type: Application
    Filed: May 10, 2021
    Publication date: November 10, 2022
    Inventors: Mostafa Khoshnevisan, Jing Sun, Xiaoxia Zhang, Yitao Chen
  • Publication number: 20220361222
    Abstract: Methods, apparatuses, and computer readable storage medium for PUSCH repetitions and SRS resource sets are provided. An example method includes receiving a configuration of a first SRS resource set and a second SRS resource set. The example method further includes receiving, from a network entity, DCI for an UL transmission, the DCI indicating the first SRS resource set and the second SRS resource set. The first/second SRS resource set is respectively associated with a first/second beam. The example method further includes transmitting, to the network entity, a first set of repetitions of a PUSCH based on the first SRS resource set and a second set of repetitions of the PUSCH based on the second SRS resource set in an order based on information received in the configuration of the first SRS resource set and the second SRS resource set or in the DCI scheduling the UL transmission.
    Type: Application
    Filed: May 5, 2022
    Publication date: November 10, 2022
    Inventors: Yitao CHEN, Mostafa KHOSHNEVISAN, Xiaoxia ZHANG
  • Publication number: 20220360404
    Abstract: Methods, systems, and devices for wireless communications are described that provide for transmission of multiple repetitions of uplink control information (UCI) multiplexed with uplink data in which a spectral efficiency ratio of the uplink data to the UCI is scaled based on one or more parameters associated with the multiple repetitions. The one or more parameters may include, for example, a number of repetitions of the uplink data, a number of repetitions for a particular UCI, whether multiple beams are used to transmit instances of a repetition, a type of UCI, or any combinations thereof.
    Type: Application
    Filed: May 5, 2022
    Publication date: November 10, 2022
    Inventors: Yitao Chen, Mostafa Khoshnevisan, Tao Luo
  • Publication number: 20220353038
    Abstract: Methods, systems, and devices for wireless communication are described to indicate transmit and receive beam patterns within an SRS resource set configured for beam management. For example, a base station may configure a user equipment (UE) with a sounding reference signal (SRS) resource set for beam management, where the configuration may indicate a transmit beam pattern. The SRS resource set may include one or more groups of SRS resources which may be used to indicate the transmit beam pattern. A transmit beam may be the same for each SRS resource within a respective group, but may be different across different groups. The UE may transmit one or more SRS to the base station, each using a respective transmit beam according to the configuration. The base station may indicate a transmit beam to the UE based on the SRS.
    Type: Application
    Filed: April 30, 2021
    Publication date: November 3, 2022
    Inventors: Mostafa Khoshnevisan, Yitao Chen, Xiaoxia Zhang, Jing Sun
  • Publication number: 20220353906
    Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may transmit one or more random access messages during a random access procedure between the UE and a base station. The UE may receive a control signal that includes a spatial relation configuration for transmission, by the UE, of an uplink signal. The spatial relation configuration may indicate that transmission of the uplink signal is via a transmit beam used in transmitting one of the random access messages. The spatial relation configuration may configure a spatial relation information element (IE) to identify the random access message. The UE may receive the spatial relation configuration identifying the random access message, and the UE may transmit the uplink signal using a same transmit beam used for transmission of the random access message.
    Type: Application
    Filed: April 30, 2021
    Publication date: November 3, 2022
    Inventors: Mostafa Khoshnevisan, Yitao Chen, Xiaoxia Zhang, Jing Sun
  • Publication number: 20220353031
    Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a user equipment (UE) may receive a control signal that triggers the UE to transmit one or more SRSs of an SRS resource set, where the SRS resource set spans multiple slots, and to receive configuration information that includes timing information for transmission of the one or more SRSs relative to a timing of receipt of the control signal. Additionally, the described techniques provide for a UE to receive a control signal that indicates an SRS beam management configuration that identifies at least a first SRS resource set and a second SRS resource set that are linked together such that the UE may determine a transmit beam for an SRS resource of the second SRS resource set based on an additional transmit beam for a corresponding SRS resource of the first SRS resource set.
    Type: Application
    Filed: April 30, 2021
    Publication date: November 3, 2022
    Inventors: Mostafa Khoshnevisan, Yitao Chen, Xiaoxia Zhang, Jing Sun
  • Publication number: 20220353857
    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: Application
    Filed: April 29, 2021
    Publication date: November 3, 2022
    Inventors: Mostafa Khoshnevisan, Yitao Chen, Jing Sun, Xiaoxia Zhang
  • Publication number: 20220353131
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may communicate with a base station in a wireless communications system using downlink beams and uplink beams. A UE may determine whether to maintain or change an uplink beam of the UE after a downlink beam failure. The UE may receive control signaling indicating a configuration for uplink beam management for use in response to a downlink beam failure detection in a deployment configuration where uplink beams of the UE may be decoupled from downlink beams of the UE. The UE may perform a downlink beam failure recovery (BFR) procedure based on a downlink beam failure of a downlink beam of the UE. The UE may reconfigure an uplink beam based on the configuration and the downlink BFR procedure.
    Type: Application
    Filed: April 29, 2021
    Publication date: November 3, 2022
    Inventors: Mostafa Khoshnevisan, Yitao Chen, Jing Sun, Xiaoxia Zhang
  • Publication number: 20220346137
    Abstract: In embodiment methods for managing uplink spatial filter configuration, comprising, a processor of a wireless device may send an initial access signal using two or more spatial filters, wherein each spatial filter directs a beam to a respective uplink (UL) receive (Rx) point, receive from the base station an indication of which beam to use for UL transmissions, and send to the base station another signal using the spatial filter corresponding to the indicated beam. A base station may receive the initial access signal via two or more UL Rx points on two or more beams, determine which of the two or more beams provides a better received signal, send an indication of the better of the two or more beams to the wireless device, and receive from the wireless device another signal on the indicated better of the two or more beams via a corresponding UL Rx point.
    Type: Application
    Filed: April 22, 2021
    Publication date: October 27, 2022
    Inventors: Xiaoxia ZHANG, Mostafa Khoshnevisan, Jing Sun, Yitao Chen
  • Publication number: 20220346025
    Abstract: In embodiments, a wireless device may determine a downlink path loss based on a downlink signal received from a base station, send via an uplink (UL) receive (Rx) point an initial access signal using a first uplink transmit power based on the downlink path loss, receive an initial access response signal including a transmit power control (TPC) command and an uplink transmit power adjustment, and send a signal to the base station via the UL Rx point using a second uplink transmit power based on the TPC command and the uplink transmit power adjustment. The base station may receive the initial access signal using the first uplink transmit power via the UL Rx point, determine the TPC command and the uplink transmit power adjustment based on the initial access signal, and send to the wireless device the TPC command and the uplink transmit power adjustment.
    Type: Application
    Filed: April 22, 2021
    Publication date: October 27, 2022
    Inventors: Xiaoxia ZHANG, Mostafa Khoshnevisan, Jing Sun, Yitao Chen
  • Publication number: 20220330289
    Abstract: A UE receives DCI scheduling a first set of PUSCH repetitions associated with a first SRS set and a second set of PUSCH repetitions associated with a second SRS set. The UE determines whether to multiplex at least one CSI report on one PUSCH repetition of the first set of PUSCH repetitions, one PUSCH repetition of the second set of PUSCH repetitions, or both based on whether a number of symbols in the one PUSCH repetition of the first set of PUSCH repetitions and in the one PUSCH repetition of the second set of PUSCH repetitions is different, and/or UCI excluding the at least one CSI report will be transmitted in the one PUSCH repetition of the first set of PUSCH repetitions or the one PUSCH repetition of the second set of PUSCH repetitions.
    Type: Application
    Filed: March 18, 2022
    Publication date: October 13, 2022
    Inventors: Yitao CHEN, Mostafa KHOSHNEVISAN
  • Publication number: 20220322252
    Abstract: Certain aspects of the present disclosure provide techniques for detecting a potential collision between a scheduled uplink transmission and a synchronization signal block (SSB) and transmitting the scheduled uplink transmission. For example, in cases of inter-cell multi-transmission and reception points (multi-TRP), a user equipment (UE) may not be capable of simultaneously transmitting and receiving on the multiple serving cells. A first serving cell may indicate to the UE of SSB indices that are actually transmitted for a second serving cell. If there is a slot collision between one of the SSB to be transmitted and a scheduled uplink transmission, the UE may not be able to handle such collision. The present disclosure provides techniques for detecting a potential collision between a scheduled uplink transmission and one of the SSBs and transmitting the scheduled uplink transmission when one or more conditions are met.
    Type: Application
    Filed: March 31, 2021
    Publication date: October 6, 2022
    Inventors: Yitao CHEN, Mostafa KHOSHNEVISAN, Jing SUN, Xiaoxia ZHANG
  • Publication number: 20220322389
    Abstract: Certain aspects of the present disclosure provide apparatus, methods, processing systems, and computer readable mediums for transmitting repetitions of uplink data (e.g., physical uplink shared channel (PUSCH)), in particular, for transmitting PUSCH repetitions in multiple transmission and reception points (multi-TRP) and/or multi-panel configurations. In a general aspect, the present disclosure provides techniques for signaling user equipment (UE) capability regarding codebook based and non-codebook based uplink transmissions in multi-TRP for improving reliability and robustness. For example, a UE may signal to a network entity an indication of a capability to support PUSCH transmission with at least two sets of repetitions. Each set of repetitions is associated with at least one sounding reference signal (SRS) resource set.
    Type: Application
    Filed: March 31, 2022
    Publication date: October 6, 2022
    Inventors: Mostafa KHOSHNEVISAN, Yitao CHEN, Xiaoxia ZHANG
  • Publication number: 20220312447
    Abstract: Methods, systems, and devices for wireless communication are described. A UE may receive control signaling scheduling transmission of a plurality of repetitions of an uplink message and indicating a time gap threshold between at least one pair of adjacent repetitions. The UE may transmit a first repetition of the uplink message based at least in part on the control signaling. The UE may transmit, based on the control signaling, a second repetition of the uplink message separated in time from transmission of the first repetition of the uplink message by a time gap satisfying the time gap threshold.
    Type: Application
    Filed: February 15, 2022
    Publication date: September 29, 2022
    Inventors: Yitao Chen, Mostafa Khoshnevisan, Xiaoxia Zhang, Jing Sun
  • Publication number: 20220312454
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a first downlink control information (DCI) repetition, for scheduling a physical downlink shared channel (PDSCH), wherein the first DCI repetition is associated with a first physical downlink control channel (PDCCH) candidate. The UE may receive a second DCI repetition associated with a second PDCCH candidate that is linked to the first PDCCH candidate for DCI repetition. The UE may transmit a feedback associated with a first symbol of a physical uplink control channel (PUCCH) based at least in part on determining a processing time and an additional processing time, wherein determining the additional processing time comprises determining the additional processing time based at least in part on a parameter associated with at least one of the first PDCCH candidate or the second PDCCH candidate. Numerous other aspects are described.
    Type: Application
    Filed: December 17, 2021
    Publication date: September 29, 2022
    Inventors: Yitao CHEN, Mostafa KHOSHNEVISAN, Jing SUN, Xiaoxia ZHANG
  • Publication number: 20220312380
    Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for maintaining, between a user equipment (UE) and a component of a base station (BS), a mutual understanding of a set of linked physical downlink control channel (PDCCH) candidates if the UE selects to monitor a subset of the linked PDCCH candidates. In one aspect, the UE may monitor the subset of the linked PDCCH candidates, and the UE and the component of the BS may select a reference PDCCH candidate from which to define scheduling information in accordance with the UE monitoring the subset of the linked PDCCH candidates. In some examples, the UE and the component of the BS may select the reference PDCCH candidate in accordance with one or more mutually understood rules or procedures such that the UE and the component of the BS may select a same reference PDCCH candidate.
    Type: Application
    Filed: March 25, 2021
    Publication date: September 29, 2022
    Inventors: Yitao Chen, Mostafa Khoshnevisan, Jing Sun, Xiaoxia Zhang, Tao Luo, Wooseok Nam, Peter Gaal
  • Publication number: 20220312381
    Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for maintaining, between a user equipment (UE) and a component of a base station (BS), a mutual understanding of multiple sets of linked physical downlink control channel (PDCCH) candidates if some PDCCH candidates of the multiple sets of linked PDCCH candidates occupy a same set of resources. In one aspect, the UE may select to monitor one of the PDCCH candidates that occupy the same set of resources in accordance with a prioritization rule. Upon selecting one of the PDCCH candidates that occupy the same set of resources for monitoring by the UE, the UE and the component of the BS may select a reference PDCCH candidate for one or more of the multiple sets of PDCCH candidates in accordance with a reference selection rule.
    Type: Application
    Filed: March 25, 2021
    Publication date: September 29, 2022
    Inventors: Yitao Chen, Mostafa Khoshnevisan, Xiaoxia Zhang, Jing Sun, Tao Luo
  • Publication number: 20220303959
    Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for a user equipment (UE) receiving, from a base station, an indication that first and second downlink control channel candidates are linked for repetition. The UE may decode downlink control information (DCI) from one or both candidates. The DCI may schedule shared channel resources in the same transmission time interval as at least one of the candidates, or the DCI may include a channel state information request that is associated with reference signal resources that are positioned in the same transmission time interval as one or both candidates. The UE may apply a rule to determine that the downlink shared channel resources or that the reference signal resources and the downlink control channel candidates are validly positioned. The UE may communicate (e.g., receive a downlink message or transmit a report) based on application of the rule.
    Type: Application
    Filed: January 12, 2022
    Publication date: September 22, 2022
    Inventors: Mostafa Khoshnevisan, Yitao Chen, Xiaoxia Zhang, Tao Luo
  • Publication number: 20220225245
    Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive a message scheduling transmission, by the UE, of uplink control information (UCI) in a physical uplink control channel (PUCCH) resource. The UE may receive an indication that the UE is scheduled to transmit the UCI in the PUCCH resource to both a first transmission-reception point (TRP) and a second TRP. The UE may also receive a first set of uplink power control parameters for transmitting the UCI to the first TRP and a second set of uplink power control parameters for transmitting the UCI to the second TRP. The UE may transmit the UCI to the first TRP and to the second TRP in the PUCCH resource, based on the first set and the second set of uplink power control parameters, and without an uplink control channel beam indication.
    Type: Application
    Filed: January 12, 2022
    Publication date: July 14, 2022
    Inventors: Mostafa Khoshnevisan, Yitao Chen, Jing Sun, Xiaoxia Zhang