Patents by Inventor Chih-Ping Li

Chih-Ping Li 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: 11212786
    Abstract: Methods, systems, and devices for wireless communications are described that provide for service indication via downlink control information (DCI) in which different services have a same DCI size. Techniques provide also that a DCI format may be indicated by a masking operation on a cyclic redundancy check (CRC) of the DCI. The DCI may include an indicator field that may indicate the service of the associated operation. The indication may also be provided via different monitoring occasions of the DCI transmissions that are associated with different services. Different DCI search spaces also may be associated with different services and provide the service indication. Additionally or alternatively, different scrambling sequences used on all or a portion of control information or demodulation reference signal transmissions may be associated with different services.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: December 28, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Seyedkianoush Hosseini, Gabi Sarkis, Wei Yang, Chih-Ping Li, Heechoon Lee, Jing Jiang, Peter Gaal, Wanshi Chen, Linhai He, Joseph Binamira Soriaga
  • Patent number: 11212034
    Abstract: Techniques are described herein related to communicating a quality of service (QoS) class identifier (QCI) for configuring physical (PHY) layer signaling. The QCI may be used to configure one or more transmission parameters of a device (e.g., a user equipment (UE) or a base station) at a PHY layer. The PHY layer may select the one or more transmission parameters to meet the QoS conditions of a given QoS class of a transport block being communicated. A modulation and coding scheme (MCS) value may be used as the QCI for the PHY layer, a channel quality indicator (CQI) value may be used as the QCI for the PHY layer, or a cell radio network temporary identifier (C-RNTI) may be used as the QCI for the PHY layer. In some cases, the QCI may be a single bit included in a downlink control message.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: December 28, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Chih-Ping Li, Wanshi Chen, Jing Jiang, Peter Gaal, Seyedkianoush Hosseini, Gabi Sarkis
  • Patent number: 11206643
    Abstract: Methods, systems, and devices for wireless communications are described. An uplink preemption indication (PI) may be transmitted from a serving cell to a user equipment (UE), where the uplink PI indicates that uplink traffic is to be preempted. In some cases, the UE may communicate with the serving cell on a first component carrier (CC) according to a first time division duplexing (TDD) configuration, where the first TDD configuration includes uplink and downlink portions. The serving cell may transmit the uplink PI on a second CC, and the UE may monitor for and receive the uplink PI during downlink portions of the second CC during uplink portions of the first CC. In some cases, the UE may monitor the second CC in accordance with a frequency division duplexing (FDD) configuration. Additionally or alternatively, the UE may monitor the second CC in accordance with a second complementary TDD configuration.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: December 21, 2021
    Assignee: QUALCOMM INCORPORATED
    Inventors: Seyedkianoush Hosseini, Chih-Ping Li, Wanshi Chen
  • Publication number: 20210377926
    Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for identification of a slot format for a set of slots where at least one slot format of the set is an subband full-duplex slot (e.g., includes uplink and downlink resources separated in a frequency domain). The base station may transmit one or more semi-persistent scheduling configurations to a UE. The UE may identify semi-persistent scheduling occasions for receiving a downlink communication based at least in part on the SPS configurations matching the format of the slot, the periodicity of the slot formats of the set, or other considerations. The UE and the base station may communicate based at least in part on the determined semi-persistent scheduling occasions.
    Type: Application
    Filed: May 24, 2021
    Publication date: December 2, 2021
    Inventors: Chih-Ping Li, Seyedkianoush Hosseini, Ahmed Attia Abotabl, Muhammad Sayed Khairy Abdelghaffar
  • Publication number: 20210359824
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine a block error rate (BLER) target for communications associated with the user equipment; determine a resource allocation pattern for transmission of channel state information reference signals (CSI-RS) based at least in part on the BLER target; and monitor one or more resources, indicated by the resource allocation pattern, for the CSI-RS. Numerous other aspects are provided.
    Type: Application
    Filed: August 2, 2021
    Publication date: November 18, 2021
    Inventors: Gabi SARKIS, Jing JIANG, Wanshi CHEN, Wei YANG, Ying WANG, Chih-Ping LI
  • Patent number: 11171765
    Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. In certain configurations, the apparatus may include an eMBB UE. The apparatus may monitor a single preconfigured mini-slot in each of a plurality of slots for a PI. The apparatus may receive the PI in the single preconfigured mini-slot of a first slot of the plurality of slots. In certain aspects, the PI may include a resource index associated with a reduced transmission power by the UE. In certain other aspects, the resource index may include one or more resources in a second slot. The apparatus may transmit at least one packet with the reduced transmission power on the one or more resources in the second slot or refraining from transmitting the at least one packet on the one or more resources in the second slot.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: November 9, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Jeonghun Park, Jay Kumar Sundararajan, Chih-Ping Li, Jing Sun, Jing Jiang
  • Publication number: 20210337495
    Abstract: Methods related to wireless communication systems and transmission and/or reception of synchronization signal block (SSB) transmissions are provided. In some scenarios, communications may occur in one or more full-duplex slots. For example, a wireless communication device receives a synchronization signal block (SSB) transmission schedule. The SSB transmission schedule at least partially overlapping with an uplink (UL) frequency portion of a full-duplex slot. The wireless communication device receives one or more SSBs, where the one or more SSBs are received in at least a slot different than the full-duplex slot or in a DL frequency portion of the full-duplex slot. Other features are also claimed and described.
    Type: Application
    Filed: April 22, 2021
    Publication date: October 28, 2021
    Inventors: Ahmed Attia ABOTABL, Muhammad Sayed Khairy ABDELGHAFFAR, Chih-Ping LI, Seyedkianoush HOSSEINI
  • Publication number: 20210337489
    Abstract: Methods related to wireless communication systems and transmission and/or reception of synchronization signal block (SSB) transmissions (e.g., in full-duplex slots) are provided. For example, a wireless communication device receives a synchronization signal block (SSB) transmission schedule. The SSB transmission schedule is at least partially overlapping with an uplink (UL) frequency portion of a full-duplex slot. The wireless communication device receives a first portion of a SSB in a downlink (DL) frequency portion of the full-duplex slot; and receiving a second portion of the SSB in the UL frequency portion of the full-duplex slot based on the SSB being scheduled in the full-duplex slot and at least partially overlapping with the UL frequency portion of the full-duplex slot. Other features are also claimed and described.
    Type: Application
    Filed: April 22, 2021
    Publication date: October 28, 2021
    Inventors: Ahmed Attia ABOTABL, Muhammad Sayed Khairy ABDELGHAFFAR, Chih-Ping LI, Seyedkianoush HOSSEINI
  • Patent number: 11159222
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine to report first channel state information (CSI), wherein the first CSI is associated with a parameter that indicates a priority of the first CSI. The UE may prioritize the first CSI over a second CSI based at least in part on the parameter. The UE may transmit an indication of the first CSI and may drop the second CSI based at least in part on prioritizing the first CSI over the second CSI. Numerous other aspects are provided.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: October 26, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Wei Yang, Seyedkianoush Hosseini, Chih Ping Li, Wanshi Chen, Gabi Sarkis, Jing Jiang
  • Publication number: 20210321375
    Abstract: Certain aspects of the present disclosure provide techniques for compact downlink control information (DCI) signaling design for ultra-reliable low-latency communications (URLLC). A method for wireless communications performed by a base station (BS) is provided. The method generally includes generating DCI, the DCI scheduling at least one transmission, according to a first DCI format. The first DCI format is compressed relative to a second DCI format and includes a carrier indicator field (CIF) and/or a rate-matching indicator field. The BS transmits the DCI to a user equipment (UE). The UE communicates with the BS based on the received DCI.
    Type: Application
    Filed: June 22, 2021
    Publication date: October 14, 2021
    Inventors: Wei YANG, Wanshi CHEN, Seyedkianoush HOSSEINI, Jing JIANG, Chih- Ping LI, Tingfang JI, Linhai HE
  • Publication number: 20210273774
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine an energy per resource element (EPRE) value for a slot based at least in part on whether the slot is associated with a half-duplex configuration or a full-duplex configuration, wherein the EPRE value is a first value when the slot is associated with the half-duplex configuration and a second value when the slot is associated with the full-duplex configuration; and perform a communication in the slot in accordance with the EPRE value. Numerous other aspects are provided.
    Type: Application
    Filed: February 25, 2021
    Publication date: September 2, 2021
    Inventors: Ahmed Attia ABOTABL, Muhammad Sayed Khairy ABDELGHAFFAR, Yeliz TOKGOZ, Chih-Ping LI, Charline HAO, Abdelrahman Mohamed Ahmed Mohamed IBRAHIM, Ronnie MACHADO
  • Patent number: 11108526
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine a block error rate (BLER) target for communications associated with the user equipment; determine a resource allocation pattern for transmission of channel state information reference signals (CSI-RS) based at least in part on the BLER target; and monitor one or more resources, indicated by the resource allocation pattern, for the CSI-RS. Numerous other aspects are provided.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: August 31, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Gabi Sarkis, Jing Jiang, Wanshi Chen, Wei Yang, Ying Wang, Chih-Ping Li
  • Patent number: 11089611
    Abstract: Techniques for transmission of Ultra-Reliable Low-Latency Communications (URLLC) data over Time Division Duplex (TDD) using a URLLC configuration for a TDD subframe are disclosed. The techniques include determining that data scheduled for transmission using a TDD band over a TDD subframe includes Ultra-Reliable Low-Latency Communications (URLLC) data, and in response, utilizing a URLLC subframe configuration for the TDD subframe. The URLLC subframe configuration includes downlink intervals and uplink intervals.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: August 10, 2021
    Assignee: QUALCOMM INCORPORATED
    Inventors: Chih-Ping Li, Jing Jiang, Tingfang Ji
  • Patent number: 11076418
    Abstract: Certain aspects of the present disclosure provide techniques for physical downlink shared channel (PDSCH) processing in presence of downlink preemption indication (DLPI). A method for wireless communication by a base station (BS) includes determining a feedback timing indicator associated with a PDSCH transmission to a user equipment (UE) in a first slot. The determination is based on a first number of slots from the first slot until transmission of a DLPI to the UE in a second slot and a second number slots for a minimum processing time associated with the UE. The method includes sending downlink control information (DCI) to the UE scheduling the PDSCH transmission to the UE in the first slot. The DCI includes the feedback timing indicator. The UE determines how to process the PDSCH based on the feedback timing indicator.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: July 27, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Chih Ping Li, Wanshi Chen
  • Patent number: 11076358
    Abstract: Methods, systems, and devices for wireless communications are described. A base station may identify one or more first user equipments (UEs) that have been configured for grant-free transmissions on an allocation of resources. In some cases, the base station may then schedule an uplink transmission for a second UE on resources that overlap the allocation of resources. Accordingly, the base station may transmit a power adjustment indication (PAI) to the one or more first UEs to adjust a transmit power for uplink transmissions on the overlapping resources. In some cases, the PAI may include an indication of frequency-domain resources for the power adjustment indicated in the PAI, a specified time duration for the power adjustment indicated in the PAI, an indication of specific uplink transmissions to which the transmit power adjustment is to be applied, or a combination thereof.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: July 27, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Wei Yang, Chih-Ping Li, Seyedkianoush Hosseini, Jing Jiang, Wanshi Chen
  • Patent number: 11044719
    Abstract: Certain aspects of the present disclosure provide techniques for compact downlink control information (DCI) signaling design for ultra-reliable low-latency communications (URLLC). A method for wireless communications performed by a base station (BS) is provided. The method generally includes generating DCI, the DCI scheduling at least one transmission, according to a first DCI format. The first DCI format is compressed relative to a second DCI format and includes a carrier indicator field (CIF) and/or a rate-matching indicator field. The BS transmits the DCI to a user equipment (UE). The UE communicates with the BS based on the received DCI.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: June 22, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Wei Yang, Wanshi Chen, Seyedkianoush Hosseini, Jing Jiang, Chih-Ping Li, Tingfang Ji, Linhai He
  • Publication number: 20210176032
    Abstract: Certain aspects of the present disclosure relate to uplink preemption in certain systems, such as new radio (NR) systems, supporting carrier aggregation (CA) and/or multi-connectivity modes. A method for wireless communication, that can be performed by a user equipment (UE), generally includes receiving a resource assignment scheduling the UE for uplink transmission. The UE receives an indication to preempt uplink transmission on a portion of the assigned resources and determines whether to transmit on the remaining assigned resources. A method that can be performed by a base station (BS) generally includes receiving an indication from one or more UEs indicating, for each of a plurality of band combinations, a capability of the UE to transmit on a band when transmission on another band in the band combination is preempted and scheduling the one or more UEs for uplink transmission based on the indication.
    Type: Application
    Filed: February 22, 2021
    Publication date: June 10, 2021
    Inventors: Seyedkianoush HOSSEINI, Amir AMINZADEH GOHARI, Peter GAAL, Wanshi CHEN, Chih- Ping LI, Jing JIANG
  • Publication number: 20210176713
    Abstract: Certain aspects of the present disclosure provide techniques for uplink preemption indication. A method for wireless communication by a user equipment (UE) includes receiving at least one ULPI from a base station (BS) indicating, for each of a plurality of sets of uplink resources, a power level the UE can use for one or more uplink transmissions. The UE can determine one or more power levels indicated by the ULPI for resources allocated for the UE for uplink transmission. The allocated resources may include multiple of the sets of uplink resources. The UE can select the power level to use for uplink transmission using the allocated resources based, at least in part, on the determination. The UE sends or drops the one or more uplink transmissions according to the ULPI. A time duration of the plurality of sets of uplink resources can be longer than a configured ULPI monitoring periodicity.
    Type: Application
    Filed: February 23, 2021
    Publication date: June 10, 2021
    Inventors: Wei YANG, Jing JIANG, Seyedkianoush HOSSEINI, Chih- Ping LI, Wanshi CHEN, Amir AMINZADEH GOHARI
  • Patent number: 11032036
    Abstract: Certain aspects of the present disclosure relate to methods and apparatus for handling carrier aggregation (CA) involving component carriers (CCs) having different numerologies.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: June 8, 2021
    Assignee: QUALCOMM INCORPORATED
    Inventors: Yang Yang, Wanshi Chen, Peter Gaal, Heechoon Lee, Joseph Binamira Soriaga, Chih-Ping Li, Bilal Sadiq
  • Patent number: 11032032
    Abstract: Aspects of the present disclosure describe an indication channel for wireless communications that indicates whether an ultra-reliable low-latency communication (URLLC) transmission is present in an enhanced mobile broad band (eMBB) slot. A user equipment (UE) may receive an indication channel identifying one or more resources defined by time domain parts and frequency domain parts that have been punctured by an Ultra-Reliable Low latency Communication (URLLC) transmission. The number of frequency domain parts may be greater than or equal to two. The UE may determine a number of resource block groups (RBGs) in an active band width part (BWP) of the UE. The UE may map the RBGs in the BWP among each of a number of sub-bands equal to the number of frequency domain parts based on a pre-defined rule.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: June 8, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Chih-Ping Li, Jing Jiang, Jing Sun, Heechoon Lee, Gabi Sarkis