Patents by Inventor Kapil Gulati

Kapil Gulati 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: 20220201459
    Abstract: Certain aspects of the present disclosure to techniques for sidelink discovery in millimeter wave (e.g., Frequency Range 2 (FR2), or 24.25 GHz to 52.6 GHz) bands. For example, the disclosed techniques provides generating a sidelink discovery message including device information of the UE and non-device information. The sidelink discovery message is outputted for transmission. A sidelink connection with a receiver (Rx) UE can then be established after the output of the sidelink discovery message. Very often, beam training is required for FR2 communications. After beam sweep, the transmitter (Tx) UE and the Rx UE become aware of the primary beam directions and need to discover each other on a device level, by associating a beam pair link to a peer UE. As FR2 link often have high overhead to establish and maintain, the disclosed techniques enables device level and service level discovery using the discover message.
    Type: Application
    Filed: December 22, 2020
    Publication date: June 23, 2022
    Applicant: QUALCOMM Incorporated
    Inventors: Sourjya DUTTA, Kapil GULATI, Hong CHENG, Junyi LI, Gabi SARKIS
  • Publication number: 20220201668
    Abstract: Methods, systems, and devices for wireless communications are described. A base station may determine a default operating mode based on the geographic location (e.g., zone) of the base station, for user equipment (UEs) operating in that zone to use. The operating mode may be a full duplex (FD) operating mode or a half duplex (HD) operating mode. A UE operating in the zone may receive, from the base station, an indication of the default operating mode corresponding to the zone, and may select an operating mode based on the indication. The mode selected by the UE may be the same as or different than the indicated default operating mode. For example, the UE may determine to use either FD mode or HD mode based on operation parameters, interference measurements, signaling from a base station or other UEs, one or more measurement thresholds, or some combination thereof.
    Type: Application
    Filed: December 18, 2020
    Publication date: June 23, 2022
    Inventors: Anantharaman Balasubramanian, Navid Abedini, Wanshi Chen, Shuanshuan Wu, Kapil Gulati
  • Publication number: 20220191744
    Abstract: Apparatus, methods, and computer-readable media for facilitating improvement in sensing for unicast sidelink communication are disclosed herein. An example method for wireless communication at a first user equipment (UE) includes receiving, from a second UE over a sidelink channel, a first transmission comprising sidelink control information (SCI). In some aspects, the SCI indicates a resource reservation of the second UE. The method includes obtaining measurements of the first transmission and determining whether the measurements exceed a reference threshold. The method includes determining whether the SCI includes an indication that the second UE is following a first resource recommendation of a third UE that is an intended receiver of the second UE when the measurements exceed the reference threshold. The method also includes ignoring the resource reservation of the second UE when the SCI includes the indication that the UE is following the first resource recommendation of the third UE.
    Type: Application
    Filed: December 2, 2021
    Publication date: June 16, 2022
    Inventors: Tien Viet NGUYEN, Gabi SARKIS, Kapil GULATI, Sourjya DUTTA
  • Publication number: 20220191673
    Abstract: Aspects of the present disclosure provide apparatus, methods, processing systems, and computer readable mediums for non-standalone sidelink discovery. A user equipment (UE) may be capable to operate in two or more separate frequency ranges. In one of the separate frequency ranges, sidelink discovery may require a burdensome overhead due to the nature of beam forming at high frequency ranges. Communications in another lower frequency range may signal to aid the discovery, thus reducing the overhead. For example, the UEs may use the low frequency communication to perform a beam alignment and discovery with lower signaling overhead. In addition, the UE may signal the capability in a first frequency range using signatures or indications in a communication in a second frequency range. For example, the UE may use FR2 to signal FR1 capability, such as using beam pilots as signatures to indicate FR1 capability.
    Type: Application
    Filed: December 10, 2020
    Publication date: June 16, 2022
    Inventors: Sourjya DUTTA, Kapil GULATI, Hong CHENG, Junyi LI, Gabi SARKIS
  • Publication number: 20220191827
    Abstract: In one aspect, resource selection may be performed where single frequency full-duplex (SFFD) UEs are present in a V2X system. Signaling and procedures may enable the coexistence of half-duplex (HD) and SFFD-capable UEs. Based on the resource reservation information obtained from other UEs, the SFFD UE may determine which among the reserved time-frequency resources is amenable for performing the SFFD operation. In one aspect, the time-frequency resources chosen for SFFD may partially or fully overlap with the reserved time-frequency resources, based on the self-interference cancellation capability of the SFFD UE, the RSRP, and/or the RSSI on the reserved time-frequency resources. Accordingly, the full-duplex capability of an SFFD-capable UE may be leveraged, and spectral efficiency improved.
    Type: Application
    Filed: December 11, 2020
    Publication date: June 16, 2022
    Inventors: Anantharaman BALASUBRAMANIAN, Kapil GULATI, Shuanshuan WU, Navid ABEDINI
  • Publication number: 20220191856
    Abstract: Aspects of the present disclosure provide apparatus, methods, processing systems, and computer readable mediums for determining timing advances (TAs) for use in sidelink (SL) communications. A method that may be performed by a transceiver (TX) user equipment (UE) includes applying a first TA when transmitting at least a first SL transmission to a receiver (RX) UE and applying a second TA when transmitting at least a second SL transmission to the RX UE.
    Type: Application
    Filed: December 10, 2020
    Publication date: June 16, 2022
    Inventors: Shuanshuan WU, Kapil GULATI, Hua WANG, Sony AKKARAKARAN
  • Patent number: 11363530
    Abstract: A user equipment (UE) in a vehicle (V-UE) broadcasts multi-phased ranging signals with which other entities may determine the range to the V-UE. The multi-phased ranging signals may include a first message, which may be broadcast in the Intelligent Transport System (ITS) spectrum, includes ranging information, such as a source identifier, location information for the broadcasting V-UE, and an expected time of broadcast of the ranging signal. The ranging signal may then be broadcast at the expected time and may include the source identifier. A second message, which be broadcast in the ITS spectrum, may include clock error information for the V-UE. A receiving entity may determine the range to the V-UE based on the time of arrival of the ranging signal and the expected time of transmission, as well as the clock error information. The receiving entity may further generate a position estimate based on the received location information.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: June 14, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Chang-Sik Choi, Kapil Gulati, Sudhir Kumar Baghel, Urs Niesen, Jubin Jose, Anantharaman Balasubramanian
  • Publication number: 20220182126
    Abstract: Certain aspects of the present disclosure to techniques for sidelink re-discovery without repeating beamforming in millimeter wave (e.g., Frequency Range 2) bands. For example, a Tx UE may complete a first beam training with a Rx UE. The Tx UE may generate a discovery message that includes at least one of: an indication of a beam training reference signal (BT-RS) sequence index of the first beam training; an indication of a timer for changing the BT-RS sequence; or an indication of a second BT-RS sequence to be used by the Tx UE before an expiration of the timer. The second BT-RS sequence may be indicated as an index to a set of BT-RS sequences including the BT-RS sequence associated with the first beam training. The Tx may transmit the generated discovery message to the Rx UE.
    Type: Application
    Filed: December 9, 2020
    Publication date: June 9, 2022
    Inventors: Sourjya DUTTA, Kapil GULATI, Hong CHENG, Junyi LI, Gabi SARKIS
  • Publication number: 20220182780
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first vehicle user equipment (VUE) may transmit, to a node, first information associated with a presence of an object in a region of interest based at least in part on a sensing of the region of interest performed by the first VUE. The VUE may receive, from the node, second information associated with the presence of the object in the region of interest based at least in part on a sensing of the region of interest performed by a second VUE. The VUE may determine whether the object is present in the region of interest based at least in part on the first information and the second information. The VUE may perform an action based at least in part on whether the object is present in the region of interest. Numerous other aspects are provided.
    Type: Application
    Filed: December 3, 2020
    Publication date: June 9, 2022
    Inventors: Anantharaman BALASUBRAMANIAN, Junyi LI, Dan ZHANG, Kapil GULATI, Chang-Sik CHOI
  • Patent number: 11356163
    Abstract: In an aspect, the present disclosure includes a method, apparatus, and computer readable medium for wireless communications for transmitting, by a network entity to a user equipment (UE), a first sidelink control message (CCH-1), wherein the CCH-1 includes at least control information that indicates a resource allocation of data and decoding information for decoding a second sidelink control message (CCH-2); transmitting, by the network entity to the UE, the CCH-2, wherein the CCH-2 includes one or more of control information for decoding data and one or more channel state information (CSI) reports; and transmitting, by the network entity to the UE, the data based on the CCH-1 and CCH-2.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: June 7, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Kapil Gulati, Sudhir Kumar Baghel, Gabi Sarkis
  • Patent number: 11356814
    Abstract: Disclosed are some examples of techniques for decentralized and scalable ranging and positioning of distributed devices. For example, an anchor user equipment (UE) can detect, from initiator user equipments (UEs), respective initiator positioning reference signal (PRS) transmissions associated with respective initiator positioning sessions. Based on the initiator PRS transmissions, one or more characteristics of PRS messaging associated with the initiator positioning sessions can be determined. When the one or more characteristics satisfies a criterion or criteria, the anchor UE can broadcast an anchor PRS transmission indicating initiation of an anchor positioning session by the anchor UE.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: June 7, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Chang-Sik Choi, Kapil Gulati, Junyi Li, Gene Wesley Marsh
  • Publication number: 20220167120
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an apparatus for wireless communication at a user equipment (UE) may transmit, to at least one vehicle UE, in accordance with a first update rate, a first set of position messages indicating position information associated with the UE. The apparatus may transmit a second set of position messages in accordance with a second update rate. Numerous other aspects are provided.
    Type: Application
    Filed: November 24, 2020
    Publication date: May 26, 2022
    Inventors: Saadallah KASSIR, Anantharaman BALASUBRAMANIAN, Kapil GULATI
  • Publication number: 20220167416
    Abstract: A UE may receive, from a base station/TRP, a configuration for a beam pair including an UL beam and a DL beam and transmit a RACH message via the UL beam while receiving DL information via the DL beam. The UE and/or the base station/TRP may be configured to operate in a FD mode. In aspects, the UE may transmit a RACH preamble based on a first mode of transmission. After a threshold time delay measured from the transmission of the RACH preamble, the UE may retransmit the RACH preamble based on a second mode of transmission. The second mode of transmission may be a same mode of transmission or a different mode of transmission from the first mode of transmission. Each mode of transmission may be based on one or more of TDM, FDM, or SDM.
    Type: Application
    Filed: November 23, 2020
    Publication date: May 26, 2022
    Inventors: Qian ZHANG, Junyi LI, Navid ABEDINI, Yan ZHOU, Kapil GULATI, Tao LUO
  • Publication number: 20220167420
    Abstract: A UE may receive, from a base station, a configuration for a plurality of parameter sets that each include one or more parameters for a RACH message and are each associated with one of TDM, FDM, or SDM. The UE may determine a transmission type of the RACH message corresponding to one or more of the TDM, the FDM, or the SDM and transmit the RACH message to the base station based on at least one parameter set and the determined transmission type of the RACH message. In aspects, the configuration received by the UE may be a configuration for transmitting the RACH message based on a RACH determination protocol. The UE may transmit the RACH message to the base station based on the received configuration associated with the RACH determination protocol and the determined at least one transmission type of the RACH message.
    Type: Application
    Filed: December 8, 2020
    Publication date: May 26, 2022
    Inventors: Qian ZHANG, Yan ZHOU, Navid ABEDINI, Junyi LI, Kapil GULATI, Tao LUO
  • Publication number: 20220167419
    Abstract: A UE may receive, from a base station/TRP, a configuration for a beam pair including an UL beam and a DL beam and transmit a RACH message via the UL beam while receiving DL information via the DL beam. The UE and/or the base station/TRP may be configured to operate in a FD mode. In aspects, the UE may transmit a RACH preamble based on a first mode of transmission. After a threshold time delay measured from the transmission of the RACH preamble, the UE may retransmit the RACH preamble based on a second mode of transmission. The second mode of transmission may be a same mode of transmission or a different mode of transmission from the first mode of transmission. Each mode of transmission may be based on one or more of TDM, FDM, or SDM.
    Type: Application
    Filed: December 8, 2020
    Publication date: May 26, 2022
    Inventors: Qian ZHANG, Junyi LI, Navid ABEDINI, Yan ZHOU, Kapil GULATI, Tao LUO
  • Publication number: 20220167417
    Abstract: A UE may receive, from a base station, a configuration for a plurality of parameter sets that each include one or more parameters for a RACH message and are each associated with one of TDM, FDM, or SDM. The UE may determine a transmission type of the RACH message corresponding to one or more of the TDM, the FDM, or the SDM and transmit the RACH message to the base station based on at least one parameter set and the determined transmission type of the RACH message. In aspects, the configuration received by the UE may be a configuration for transmitting the RACH message based on a RACH determination protocol. The UE may transmit the RACH message to the base station based on the received configuration associated with the RACH determination protocol and the determined at least one transmission type of the RACH message.
    Type: Application
    Filed: November 23, 2020
    Publication date: May 26, 2022
    Inventors: Qian ZHANG, Yan ZHOU, Navid ABEDINI, Junyi LI, Kapil GULATI, Tao LUO
  • Publication number: 20220163660
    Abstract: Methods, systems, and devices for wireless communications are described. User equipment (UE), such as vehicles, may implement radar transmissions to detect and avoid potential collisions with a target such as other UE or pedestrians. A first UE may receive an indication of a location of a second UE and an indication of one or more parameters associated with radar transmission from the second UE. The first UE may also receive a radio frequency waveform that includes a first component associated with the radar transmissions from the second UE and a second component that is associated with reflected radar transmission from the first UE. The first UE may compensate for an interference from the first component based on the location of the second UE and the one or more parameters. The first UE may generate a radar image from the received radio frequency waveform based on compensating for the interference.
    Type: Application
    Filed: November 23, 2020
    Publication date: May 26, 2022
    Inventors: Kapil Gulati, Dan Zhang, Junyi Li
  • Patent number: 11343666
    Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a wireless device may broadcast a discovery preamble to identify a receiving device or to identify a suitable beam for communicating with a receiving device prior to broadcasting a discovery message to the receiving device. In such systems, the wireless device may use the techniques described herein to generate the discovery preamble and to reduce interference between discovery preamble transmissions and avoid data loss. In one example, a wireless device may append a cyclic prefix (CP) to a discovery preamble with a suitable length to protect the discovery preamble from interference from another transmission. In another example, the wireless device may generate a cyclically periodic signal including multiple copies of the discovery preamble so a receiving device may be able to receive a portion of the signal and identify the discovery preamble.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: May 24, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Navid Abedini, Zhibin Wu, Junyi Li, Sudhir Kumar Baghel, Kapil Gulati, Libin Jiang
  • Patent number: 11343865
    Abstract: Aspects relate to managing a device-to-device communication link via radio resource control (RRC) layer signaling. In an example operation, a first wireless communication device establishes a unicast link with a second wireless communication device over a device-to-device communication interface and determines that the unicast link is to be reconfigured with at least one updated parameter. The first wireless communication device then sends a link reconfiguration request to the second wireless communication device via a first RRC message over the communication interface. The first RRC message includes the at least one updated parameter. The first wireless communication device receives a link reconfiguration response from the second wireless communication device via a second RRC message over the communication interface based on the link reconfiguration request and determines whether to reconfigure the unicast link using the at least one updated parameter based on the received link reconfiguration response.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: May 24, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Hong Cheng, Sudhir Kumar Baghel, Zhibin Wu, Kapil Gulati, Dan Vassilovski
  • Publication number: 20220159428
    Abstract: Techniques described herein provide for the efficient usage of an RF channel for PRS transmissions by performing LBT sensing for a group of one or more vehicles (e.g., V2X vehicles) in a predetermined area by using an RSU. The RSU can determine a sequence in which an order for each vehicle in the group to transmit a respective PRS is defined, and provide the sequence to the group. The RSU may further perform the LBT functionality by listening to availability on the RF channel and, when the channel becomes available, the RSU can initiate this sequence by sending an initial PRS. This LBT sensing for a group can provide far more efficient usage of the RF channel than if LBT functionality were performed by each divisional vehicle.
    Type: Application
    Filed: November 16, 2020
    Publication date: May 19, 2022
    Inventors: Chang-Sik CHOI, Kapil GULATI, Sudhir Kumar BAGHEL