Patents by Inventor Rajat Prakash

Rajat Prakash 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).

  • SEMI-PERSISTENT SCHEDULING (SPS) AND CONFIGURED GRANT (CG) TRANSMISSION PARAMETER ADJUSTMENT
    Publication number: 20230224099
    Abstract: A method of wireless communication performed by a user equipment (UE) incudes receiving supplemental semi-persistent scheduling (SPS) via radio resource control (RRC) signaling. The method also includes receiving the downlink re-transmissions according to the supplemental SPS. A method performed by the UE also includes receiving downlink feedback information (DFI) for a packet and determining one or more of resource block allocation, a start and length indicator value (SLIV), or a number of repetitions for re-transmission of the packet in response to the DFI. The method further includes re-transmitting the packet during a re-transmission period based on one or more of the resource block allocation, the SLIV, or the number repetition.
    Type: Application
    Filed: July 30, 2020
    Publication date: July 13, 2023
    Inventors: Siyi CHEN, Changlong XU, Jing SUN, Xiaoxia ZHANG, Rajat PRAKASH
  • TECHNIQUES FOR SCHEDULING CROSS-COMPONENT CARRIERS IN UNLICENSED BANDS
    Publication number: 20230224964
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive, from a base station, a broadcast message that indicates a plurality of occasions for a control resource set, wherein the plurality of occasions are associated with a plurality of component carriers that are associated with an unlicensed band; and monitor at least one of the plurality of occasions for the control resource set. In some aspects, a user equipment may receive, from a base station, a control message that indicates a plurality of occasions for at least one control resource set, wherein the plurality of occasions are associated with a plurality of component carriers that are associated with an unlicensed band; and monitor at least one of the plurality of occasions for the at least one control resource set. Numerous other aspects are provided.
    Type: Application
    Filed: July 8, 2020
    Publication date: July 13, 2023
    Inventors: Luanxia YANG, Changlong XU, Jing SUN, Xiaoxia ZHANG, Hao XU, Rajat PRAKASH
  • Layer one sidelink channel state information reporting
    Patent number: 11700610
    Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may receive control signaling comprising an indication of a format for a channel state information report indicating channel state information for a sidelink channel between the first UE and a second UE. The first UE may determine the channel state information for the sidelink channel between the first UE and the second UE. The first UE may configure a layer one uplink control message to indicate the channel state information report according to the format. The first UE may transmit, based at least in part on the format, the layer one uplink control message to a base station indicating the channel state information report.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: July 11, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Chih-Hao Liu, Yisheng Xue, Jing Sun, Xiaoxia Zhang, Ozcan Ozturk, Rajat Prakash, Sony Akkarakaran, Piyush Gupta
  • SYSTEM INFORMATION BLOCK DELIVERY IN SIDELINK
    Publication number: 20230217391
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may transmit, to a second UE, a system information block (SIB) that includes first timing information. The UE may transmit, to the second UE, second timing information associated with an update to the first timing information. Numerous other aspects are described.
    Type: Application
    Filed: December 30, 2021
    Publication date: July 6, 2023
    Inventors: Rajat PRAKASH, Sherif ELAZZOUNI, Ozcan OZTURK
  • BANDWIDTH PART CONFIGURATION FOR COMMUNICATION OF MULTIPLE REFERENCE SIGNALS FOR POSITIONING
    Publication number: 20230216638
    Abstract: In an aspect, a UE and BS communicate data traffic in accordance with a first bandwidth part (BWP) configuration. The BS sends, to the UE in association with communication of a plurality of reference signals for positioning (e.g., PRS, SRS-P, etc.), an indication of a second BWP configuration that includes a different bandwidth than the first BWP configuration. The UE and BS communicate, for a duration of the communication of the plurality of reference signals for positioning, at least the plurality of reference signals for positioning in accordance with the second BWP configuration.
    Type: Application
    Filed: July 28, 2021
    Publication date: July 6, 2023
    Inventors: Srinivas YERRAMALLI, Xiaoxia ZHANG, Rajat PRAKASH, Marwen ZORGUI, Alexandros MANOLAKOS, Mukesh KUMAR
  • SIDELINK-ASSISTED POSITION ESTIMATION PROCEDURE
    Publication number: 20230217418
    Abstract: Disclosed are techniques for wireless communication. In an aspect, a position estimation entity (e.g., UE, gNB, LMF, etc.) identifies a pool of UEs for a SL-assisted position estimation procedure of a set of target UEs. SL SRS-Ps are communicated (e.g., transmitted and measured) between the pool of UEs (e.g., for relative SL ranging). UL SRS-Ps are communicated by at least some of the UEs in the pool of UEs. The position estimation entity obtains measurement data for both the SL SRS-P and UL-SRS-P communications. The position estimation entity determines a position estimate for each UE in the set of UEs based on the measurement information.
    Type: Application
    Filed: March 9, 2023
    Publication date: July 6, 2023
    Inventors: Marwen ZORGUI, Srinivas YERRAMALLI, Xiaoxia ZHANG, Piyush GUPTA, Rajat PRAKASH, Junyi LI, Xiaojie WANG, Mohammad Tarek FAHIM
  • RESTRICTED ACCESS PROCEDURE
    Publication number: 20230217251
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit a registration request for restricted access (RA), wherein the registration request selectively includes an onboarding access request. The UE may selectively communicate with an onboarding network to authenticate and authorize a particular network based at least in part on whether the registration request includes the onboarding access request. The UE may complete the RA registration after transmitting the registration request and based at least in part on selectively communicating with the onboarding network to authenticate and authorize the particular network. Numerous other aspects are described.
    Type: Application
    Filed: March 14, 2023
    Publication date: July 6, 2023
    Inventors: Haris ZISIMOPOULOS, Sebastian SPEICHER, Rajat PRAKASH
  • On-demand scheduling request design
    Patent number: 11696280
    Abstract: An on-demand scheduling request (SR) design is disclosed. Such an on-demand or triggered SR operation provides pre-configuration of user equipments (UEs) with triggered SR resources. Base stations may also configure UEs to monitor for a trigger signal within a bit field of control signaling from the base station. Upon detecting the trigger signal within such bit field, the UEs may use the triggered SR resources for transmitting triggered SR requests. Such use of the triggered SR resources may be in response to UEs detected cancelation of other periodic configured SR resources.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: July 4, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Jing Sun, Xiaoxia Zhang, Yisheng Xue, Tao Luo, Peter Gaal, Juan Montojo, Ozcan Ozturk, Rajat Prakash, Iyab Issam Sakhnini
  • Sidelink-aided radio frequency sensing
    Patent number: 11696328
    Abstract: Example aspects include a method, apparatus, and computer-readable medium for sidelink-aided radio frequency (RF) sensing at user equipment (UE) of a wireless communication network, comprising receiving a sensing establishment message associated with a sensing session. The aspects further include receiving one or more sensing measurement information obtained by the one or more sidelink UEs corresponding to the sensing session, or a first sensing outcome information corresponding to the sensing session obtained by one of the one or more sidelink UEs based on the one or more sensing measurement information. Additionally, the aspects include transmitting the one or more sensing measurement information obtained by the one or more sidelink UEs corresponding to the sensing session, or a second sensing outcome information corresponding to the sensing session.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: July 4, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Marwen Zorgui, Srinivas Yerramalli, Roohollah Amiri, Rajat Prakash
  • POWER MODE DISTINCTION
    Publication number: 20230199668
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment ay determine a power mode of a base station based at least in part on a control resource set (e.g., CORESET0) configuration index received in a master information block from the base station and transmit communications to the base station with a transmit power that is based at least in part on the power mode of the base station. Numerous other aspects are provided.
    Type: Application
    Filed: July 17, 2020
    Publication date: June 22, 2023
    Inventors: Siyi CHEN, Changlong XU, Jing SUN, Xiaoxia ZHANG, Hao XU, Rajat PRAKASH
  • EFFICIENT DYNAMIC SWITCH BETWEEN SS-TWR AND DS-TWR FOR SIDELINK POSITIONING
    Publication number: 20230198700
    Abstract: Method and apparatus for switching between SS-TWR and DS-TWR. The apparatus reserves resources for transmission of a first SL-PRS in a first time slot. The apparatus transmits, to a second UE, the first SL-PRS within the first time slot. The apparatus receives, from the second UE, a second SL-PRS at a second time based on the first time slot and a response time associated with transmission of the second SL-PRS in response to the first SL-PRS. The apparatus measures a time difference between the transmission of the first SL-PRS and reception of the second SL-PRS to determine if a third SL-PRS is to be transmitted to the second UE.
    Type: Application
    Filed: December 21, 2021
    Publication date: June 22, 2023
    Inventors: Srinivas YERRAMALLI, Piyush GUPTA, Xiaoxia ZHANG, Alexandros MANOLAKOS, Rajat PRAKASH, Junyi LI, Mukesh KUMAR
  • Packet duplication carrier enhancements
    Patent number: 11678314
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive an uplink packet duplication configuration that indicates a set of configured carriers and a number of copies of an uplink packet to transmit. In some examples, the UE may receive the uplink packet duplication configuration from a base station. The UE may select a subset of the set of configured carriers based on a selection criterion and the number of copies of the uplink packet to transmit, and transmit an uplink packet transmission that includes the copy of the uplink packet on each carrier of the subset of the set of configured carriers based on the uplink packet duplication configuration.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: June 13, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Vinay Joseph, Rajat Prakash, Arumugam Chendamarai Kannan
  • BEAM-BASED MACHINE LEARNING-ENABLED RFFP POSITIONING
    Publication number: 20230179953
    Abstract: Aspects presented herein may enable an ML module to associate RF fingerprints with beam directions and/or beam features to improve the uniqueness of RF fingerprints. In one aspect, network entity may receive, from one or more wireless devices, a plurality of first RF fingerprints, each of the plurality of first RF fingerprints being associated with at least one directional feature and a location. The network entity may receive a request to determine a position of a UE based on at least one second RF fingerprint associated with the UE or captured by the UE. The network entity may estimate the position of the UE based at least in part on matching the at least one second RF fingerprint to at least one of the plurality of first RF fingerprints.
    Type: Application
    Filed: December 6, 2021
    Publication date: June 8, 2023
    Inventors: Mohammed Ali Mohammed HIRZALLAH, Srinivas YERRAMALLI, Taesang YOO, Rajat PRAKASH, Xiaoxia ZHANG
  • LCP restriction enhancement
    Patent number: 11671970
    Abstract: Aspects for enhanced logical channel prioritization mapping procedures and restrictions are disclosed. In one aspect, a method of wireless communication includes receiving, by a user equipment (UE), a logical channel prioritization (LCP) restriction configuration for a logical channel indicating a set of SRS configurations associated with the logical channel; receiving, by the UE, an uplink grant indicating an uplink grant instance and an SRS configuration for the uplink grant instance; and selecting, by the UE, the logical channel to use resources of the uplink grant instance based in part on the set of SRS configurations and the SRS configuration for the uplink grant instance. Additional aspects are described.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: June 6, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Vinay Joseph, Rajat Prakash, Mostafa Khoshnevisan
  • MULTIPATH IAB COMMUNICATION INCLUDING MULTI-HOP
    Publication number: 20230171669
    Abstract: A base station may configure a first node and at least one second node with an integrated access and backhaul (IAB) network with the multipath multi-hop transmission configuration. The first node and the at least one second node may communicate with the first node through a direct path and a multi-hop transmission including the base station. The first node and the at least one second node may detect transmission failure on the direct path and retransmit the data packet to the multi-hop transmission, on a set of physical resource blocks (PRBs) configured by the base station. The first node may transmit remote buffer state report (rBSR) to the base station, and the base station may configure the set of PRBs for retransmissions based on the rBSR.
    Type: Application
    Filed: November 19, 2021
    Publication date: June 1, 2023
    Inventors: Karl Georg HAMPEL, Sherif ELAZZOUNI, Ozcan OZTURK, Rajat PRAKASH, Fatih ULUPINAR, Piyush GUPTA
  • User equipment fixed frame period for frame based equipment mode in unlicensed spectrum
    Patent number: 11665739
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a fixed frame period (FFP) configured for the UE in a frame based equipment mode. The FFP configured for the UE includes one or more idle periods and a channel occupancy time that is offset from an FFP configured for a base station communicating with the UE over an unlicensed channel. The UE may refrain from transmitting over the unlicensed channel during the one or more idle periods. The one or more idle periods may at least partially overlap with a time period in which the base station refrains from transmitting over the unlicensed channel. Numerous other aspects are provided.
    Type: Grant
    Filed: April 21, 2021
    Date of Patent: May 30, 2023
    Assignee: Qualcomm Incorporated
    Inventors: Jing Sun, Xiaoxia Zhang, Tao Luo, Aleksandar Damnjanovic, Juan Montojo, Rajat Prakash, Andrei Dragos Radulescu
  • MAC-CE design and power headroom considerations for PDCP duplication enhancements
    Patent number: 11665759
    Abstract: A user equipment (UE) may utilize multiple radio link control (RLC) entities to duplicate packet data convergence protocol (PDCP) packets for improved reception. The UE may receive a configuration for dual connectivity with a master cell group and with a secondary cell group, wherein the configuration identifies a plurality of configured RLC entities, each RLC entity being associated with one of the master cell group or the secondary cell group. The UE may receive, at the UE, an indication of an activation status for each of at least a first subset of the configured RLC entities from one cell group of the master cell group or the secondary cell group. The UE may set the activation status of each of the first subset of the configured RLC entities that are associated with the one cell group from which the indication is received based on the indication.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: May 30, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Vinay Joseph, Rajat Prakash, Sitaramanjaneyulu Kanamarlapudi, Leena Zacharias
  • Wireless communication enhancements for transparent and boundary clocks
    Patent number: 11653317
    Abstract: Methods, systems, and devices for wireless communications are described. In an example, a method includes a first node receiving a precision time protocol (PTP) message, identifying one or more timing domains to be supported by the first node based at least in part on the PTP message, and sending, to a second node of the wireless communication network, an indicator of the one or more timing domains to be supported by the first node. Another example at a node includes receiving, from additional nodes of the wireless communication network, indicators of one or more timing domains supported by the additional nodes, receiving a PTP message associated with a timing domain, and sending the PTP message to a subset of the additional nodes based at least in a part on the indicators of one or more timing domains supported by the additional nodes.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: May 16, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Vinay Joseph, Rajat Prakash, Peerapol Tinnakornsrisuphap, Fatih Ulupinar
  • Network-inferred synchronization for positioning measurements
    Patent number: 11647361
    Abstract: A wireless network including user equipment (UE) and base stations is configured to perform position determination with low latency and synchronized to a common time within a wireless network. The UE and base stations are configured to perform positioning measurements at a specific time point or within a window around the time point in a measurement period. The time point may be relative to a timing event within the wireless network, such as the beginning or end of a positioning reference signal window or a specific message in a layer 1 or layer 2 transmission. A location server may be provided with the positioning measurements or a position estimate from the UE and provide the position estimate to an external client within the measurement period.
    Type: Grant
    Filed: June 13, 2022
    Date of Patent: May 9, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Srinivas Yerramalli, Stephen William Edge, Lorenzo Ferrari, Rajat Prakash, Xiaoxia Zhang, Alexandros Manolakos, Sven Fischer
  • Sidelink-assisted position estimation procedure
    Patent number: 11641640
    Abstract: Techniques for location determination of user equipment (UE) are provided. In an aspect, a position estimation entity (e.g., UE, gNB, LMF, etc.) identifies a pool of UEs for a SL-assisted position estimation procedure of a set of target UEs. SL SRS-Ps are communicated (e.g., transmitted and measured) between the pool of UEs (e.g., for relative SL ranging). UL SRS-Ps are communicated by at least some of the UEs in the pool of UEs. The position estimation entity obtains measurement data for both the SL SRS-P and UL-SRS-P communications. The position estimation entity determines a position estimate for each UE in the set of UEs based on the measurement information.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: May 2, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Marwen Zorgui, Srinivas Yerramalli, Xiaoxia Zhang, Piyush Gupta, Rajat Prakash, Junyi Li, Xiaojie Wang, Mohammad Tarek Fahim