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).

  • NETWORK-INFERRED SYNCHRONIZATION FOR POSITIONING MEASUREMENTS
    Publication number: 20210329414
    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: Application
    Filed: April 2, 2021
    Publication date: October 21, 2021
    Inventors: Srinivas Yerramalli, Stephen William Edge, Lorenzo Ferrari, Rajat Prakash, Xiaoxia Zhang, Alexandros Manolakos, Sven Fischer
  • RESTRICTED ACCESS AND USE CONTROL FOR USER EQUIPMENT WITH REDUCED CAPABILITIES
    Publication number: 20210321249
    Abstract: Certain aspects of the present disclosure provide techniques for controlling access and use of network resources and services by user equipment based on user equipment capabilities. In one aspect, a method for wireless communication by a network entity, includes: receiving, from a user equipment, a request to connect to a network, the request comprising a user equipment identifier and a reduced capability indication; determining a validity of the reduced capability indication based on at least one of: subscription data associated with the user equipment; or one or more capabilities associated with the user equipment; and making a connection decision based on the validity of the reduced capability indication.
    Type: Application
    Filed: April 1, 2021
    Publication date: October 14, 2021
    Inventors: Linhai HE, Gavin Bernard HORN, Soo Bum LEE, Miguel GRIOT, Hwan Joon KWON, Jing LEI, Peter Pui Lok ANG, Rajat PRAKASH
  • INTRA-USER EQUIPMENT TRAFFIC PRIORITIZATION ON UPLINK WITH MEDIUM ACCESS CONTROL-PHYSICAL (MAC-PHY) LAYER INTERACTION
    Publication number: 20210314971
    Abstract: A method of wireless communication by a UE (user equipment) includes receiving, from a MAC (media access control) layer, a first configured grant PDU (protocol data unit). The method also includes receiving, from the MAC layer, a second configured grant PDU. The method also includes determining whether a conflict exists between the first configured grant PDU and the second configured grant PDU. The method further includes triggering, at the MAC layer, a retransmission procedure for the second configured grant PDU when the conflict exists. The triggering can occur in response to receiving a message indicating failure to send.
    Type: Application
    Filed: March 29, 2021
    Publication date: October 7, 2021
    Inventors: Rajat PRAKASH, Seyedkianoush HOSSEINI
  • CONDITIONAL HANDOVER (CHO) DECONFIGURATION AND FAILURE HANDLING IN WIRELESS COMMUNICATIONS
    Publication number: 20210282061
    Abstract: Methods, systems, and devices for wireless communications are described for management of conditional handover (CHO) configurations. A source base station may configure a user equipment (UE) with one or more CHO configurations for multiple target base stations. The CHO configurations may provide, for each target base station, one or more associated conditions that may trigger the UE to initiate a handover to the particular target base station, or to deconfigure a CHO configuration, such as based on a measurement threshold of one or more target base station measurements, one or more source base station measurements, or combinations thereof. The CHO configurations may also include failure handling information for initiating one or more subsequent handovers responsive to a failure of an initial handover attempt.
    Type: Application
    Filed: May 17, 2021
    Publication date: September 9, 2021
    Inventors: Punyaslok Purkayastha, Karthika Paladugu, Ozcan Ozturk, Rajat Prakash
  • Scheduling for a time-synchronized wireless network
    Patent number: 11115942
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an access node may synchronize a clock of the access node which is associated with communication on a local area network to a frame structure of a time-synchronized wireless network. The access node may receive configuration information relating to a quality of service profile and a first set of time intervals for the clock of the access node. The access node may map the first set of time intervals for the clock of the access node to a second set of time intervals of the frame structure of the time-synchronized wireless network. The access node may communicate on the time-synchronized wireless network during one or more of the second set of time intervals. Numerous other aspects are provided.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: September 7, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Karl Georg Hampel, Rajat Prakash, Peerapol Tinnakornsrisuphap, Satashu Goel, Junyi Li
  • Techniques for using downlink control information in new radio
    Patent number: 11102676
    Abstract: Various aspects described herein relate to techniques for managing downlink control information (DCI) in wireless communications (e.g., 5G NR). In an aspect, the method includes receiving a radio resource control (RRC) message, identifying a transport block size (TBS) based on the received RRC message, receiving DCI on a downlink channel with the DCI including a resource assignment, identifying a modulation order using a modulation and coding scheme (MCS) in an MCS field of the DCI, where the size of the MCS field is one bit or two bits, and calculating a coding rate based on at least the identified TBS, the identified modulation order and the resource assignment.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: August 24, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Mostafa Khoshnevisan, Mehmet Yavuz, Rajat Prakash, Piyush Gupta
  • Autonomous reference signal transmission configuration
    Patent number: 11088800
    Abstract: Certain aspects of the present disclosure provide techniques for autonomous reference signal transmission configuration. Certain aspects provide a method of receiving a configuration message from the base station, wherein the configuration message comprises an indication of a set of candidate resources for transmitting the reference signal. Certain aspects provide a method of detecting a future downlink transmission from the base station, and other aspects provide a method of transmitting, in response to detecting the future downlink transmission, the reference signal utilizing a first resource of the set of candidate resources prior to receiving the future downlink transmission via a second resource in the set of candidate resources.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: August 10, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Vinay Joseph, Rajat Prakash, Peerapol Tinnakornsrisuphap, Mostafa Khoshnevisan, Piyush Gupta, Junyi Li, Farhad Meshkati
  • TECHNIQUES FOR HANDLING COLLISION IN SCHEDULED WIRELESS COMMUNICATIONS
    Publication number: 20210227574
    Abstract: Aspects described herein relate to configuring devices with multiple uplink grants, where the devices may be able to determine whether to interrupt communications of one uplink grant for communications of another uplink grant.
    Type: Application
    Filed: January 5, 2021
    Publication date: July 22, 2021
    Inventors: Seyedkianoush HOSSEINI, Rajat Prakash, Aamod Khandekar, Wei Yang, James Beckman, Enoch Shiao-Kuang Lu, Vinay Joseph, Seyed Ali Akbar Fakoorian
  • RESTRICTED ACCESS PROCEDURE
    Publication number: 20210211879
    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: January 6, 2021
    Publication date: July 8, 2021
    Inventors: Haris ZISIMOPOULOS, Sebastian SPEICHER, Rajat PRAKASH
  • Multi-user data packet
    Patent number: 11057153
    Abstract: Certain aspects of the present disclosure provide techniques for a multi-user data packet, such as a physical downlink shared channel (PDSCH) packet. A method by a base station (BS) includes sending a control channel, such as physical downlink control channel (PDCCH), scheduling a plurality of user equipment (UEs) for a data packet transmission and sending data for the plurality of UEs in a single transport block on the scheduled data packet. The UE receives the control channel and data packet, and determines the data in the multi-user data packet that is intended for the UE.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: July 6, 2021
    Assignee: QUALCOMM INCORPORATED
    Inventors: Mostafa Khoshnevisan, Rajat Prakash, Junyi Li, Chong Li, Piyush Gupta, Peerapol Tinnakornsrisuphap
  • Handover and cell change due to channel access problems
    Patent number: 11057809
    Abstract: A configuration to enable a UE to obtain access to an unlicensed frequency channel of the unlicensed frequency spectrum in the event of channel access failures. The apparatus receives a configuration from a first base station to perform a conditional handover. The apparatus determines a first unlicensed frequency channel is unavailable for a transmission to the first base station or from the first base station. The apparatus switches from the first unlicensed frequency channel to a second cell for communication through the second cell in the conditional handover upon receiving the configuration and upon determining that the first unlicensed frequency channel is unavailable for the transmission.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: July 6, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Ozcan Ozturk, Jing Sun, Xiaoxia Zhang, Rajat Prakash
  • SIDELINK PAIRED AND UNPAIRED STATES
    Publication number: 20210185521
    Abstract: A user equipment (UE) establishes a unicast link with a second UE, including establishing an authentication and security establishment procedure between the first UE and the second UE. The UE establishes a security context with the second UE during the authentication and security establishment procedure. The UE starts a timer based on a status of the unicast link. The UE reestablishes the unicast link with the second UE using the security context when the unicast link is reestablished prior to expiration of the timer.
    Type: Application
    Filed: December 10, 2020
    Publication date: June 17, 2021
    Inventors: Punyaslok PURKAYASTHA, Karthika PALADUGU, Gavin Bernard HORN, Rajat PRAKASH, Hong CHENG, Dan VASSILOVSKI
  • User equipment receiver processing for multi-transmit-receive-point communication
    Patent number: 11038727
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a first set of parameters based at least in part on a first reference signal received from a first transmit receive point (TRP) and a second set of parameters based at least in part on a second reference signal received from a second TRP; determine a common parameter using the first set of parameters and the second set of parameters; and perform a tracking loop operation using the common parameter or the first set of parameters and the second set of parameters, wherein the tracking loop operation comprises at least one of a frequency tracking loop operation or a time tracking loop operation. Numerous other aspects are provided.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: June 15, 2021
    Assignee: QUALCOMM INCORPORATED
    Inventors: Mostafa Khoshnevisan, Xiaoxia Zhang, Jing Sun, Farhad Meshkati, Rajat Prakash, Yongbin Wei
  • Techniques for subscription-based authentication in wireless communications
    Patent number: 11032704
    Abstract: Aspects of the present disclosure describe authentication of a user equipment (UE) in a network. It can be determined, by the UE, to access a discovered network for wireless communications, and based on a service provider associated with the discovered network, to use a modified universal subscriber identity module (USIM) subscription stored in the UE for authentication with the discovered network. The UE can obtain a subscriber identifier for authenticating on the discovered network via the authentication, where the subscriber identifier is generated based at least in part on a service provider identifier associated with the service provider and a modified mobile subscriber identity associated with the service provider. The UE can send the subscriber identifier to a node of the discovered network for the authentication.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: June 8, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Vinay Joseph, Anand Palanigounder, Michele Berionne, Philip Hawkes, Rajat Prakash
  • ENHANCEMENT TO SYSTEM INFORMATION BLOCK (SIB) VALIDITY CHECK FOR NON-PUBLIC NETWORKS (NPNs)
    Publication number: 20210153108
    Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer storage media, for operating a user equipment (UE) in a next generation (NG) radio access network (RAN) (NG-RAN) to validate a system information block (SIB) for non-public networks (NPNs). In one aspect, a UE receiving a SIB-one (SIB1) from a cell of the NG-RAN may determine whether the cell supports non-public networks (NPNs) based on the received SIB1. If so case, the UE may determine whether an NPN-identifier (NPN-ID) in the received SIB1 matches an NPN-ID of a SIB stored in memory. If so, the UE may validate the stored SIB based at least in part on the received SIB1. If not, the UE may invalidate the stored SIB and obtain a new SIB per standard procedures.
    Type: Application
    Filed: November 3, 2020
    Publication date: May 20, 2021
    Inventors: Vinay JOSEPH, Masato KITAZOE, Rajat PRAKASH
  • WIRELESS COMMUNICATION ENHANCEMENTS FOR TRANSPARENT AND BOUNDARY CLOCKS
    Publication number: 20210153148
    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: Application
    Filed: January 27, 2021
    Publication date: May 20, 2021
    Inventors: Vinay Joseph, Rajat Prakash, Peerapol Tinnakornsrisuphap, Fatih Ulupinar
  • NETWORK TIMING REFERENCE SYNCHRONIZATION
    Publication number: 20210153152
    Abstract: In an aspect, a UE may perform clock synchronization in accordance with a first network timing reference, such as a unicast network timing reference (UNTR) or a broadcast networking timing reference (BNTR). The UE may detect event(s) associated with a connection to a BS, which may trigger a switch between the UNTR and the BNTR for clock synchronization. In a further aspect, a communications device (e.g., UE or BS) may determine to transition a UE between the BNTR and UNTR for clock synchronization, and may perform one or more actions to facilitate the network timing reference transition.
    Type: Application
    Filed: November 17, 2020
    Publication date: May 20, 2021
    Inventors: Vinay JOSEPH, Rajat PRAKASH, Prashanth Haridas HANDE
  • Conditional handover (CHO) deconfiguration and failure handling in wireless communications
    Patent number: 11012904
    Abstract: Methods, systems, and devices for wireless communications are described for management of conditional handover (CHO) configurations. A source base station may configure a user equipment (UE) with one or more CHO configurations for multiple target base stations. The CHO configurations may provide, for each target base station, one or more associated conditions that may trigger the UE to initiate a handover to the particular target base station, or to deconfigure a CHO configuration, such as based on a measurement threshold of one or more target base station measurements, one or more source base station measurements, or combinations thereof. The CHO configurations may also include failure handling information for initiating one or more subsequent handovers responsive to a failure of an initial handover attempt.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: May 18, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Punyaslok Purkayastha, Karthika Paladugu, Ozcan Ozturk, Rajat Prakash
  • SYSTEMS AND METHODS FOR AUTONOMOUS TRANSMISSION OF DEPRIORITIZED PROTOCOL DATA UNITS
    Publication number: 20210144751
    Abstract: Wireless communications systems and methods relate to an automatic transmission scheme for a de-prioritized protocol data unit (PDU) when the originally assigned configured grant for the PDU is de-prioritized due to channel conflicts. Specifically, a user equipment may obtain a PDU for transmission over a first configured grant physical uplink shared channel (PUSCH) instance. The UE may then detect de-prioritization information that the first configured grant PUSCH instance is de-prioritized due to channel overlapping, and then automatically transmit the PDU originally associated with the first configured grant PUSCH instance over a second configured grant PUSCH instance.
    Type: Application
    Filed: November 5, 2020
    Publication date: May 13, 2021
    Inventors: Vinay JOSEPH, Ozcan OZTURK, Rajat PRAKASH, Arnaud MEYLAN
  • Ethernet over cellular
    Patent number: 11006311
    Abstract: Methods, systems, and devices for wireless communication are described. A plurality of Ethernet devices may transmit Ethernet frames through a cellular network. The Ethernet devices may be coupled to the cellular network via a cellular node. The cellular node may receiver Ethernet frames from the Ethernet devices, identify a traffic class to the Ethernet frames, and map the Ethernet frames to bearers based at least in part on the traffic classes. The cellular node may transmit the Ethernet frames to other cellular nodes using the bearers. At a core network, a mapping between the cellular node and the MAC addresses of the associated Ethernet devices may be stored to allow Ethernet frames to be routed through the cellular network.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: May 11, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Satashu Goel, Peerapol Tinnakornsrisuphap, Rajat Prakash