Patents by Inventor Karthika Paladugu

Karthika Paladugu 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: 20200267609
    Abstract: This disclosure provides systems, methods and apparatus for determining a target base station timing advance value between a user equipment (UE) and target base station in connection with a random access channel (RACH)-less handover procedure. In one aspect, the UE may determine the target base station's timing advance based at least in part on a timing difference between the target base station and the source base station and based at least in part on a timing offset associated with an uplink and a downlink of the UE. In some aspects, the target base station may determine the timing advance using an uplink reference signal of the UE. In some aspects, the UE may report a timing difference between the target base station and the source base station, and the source cell may determine a timing advance based at least in part on the timing difference.
    Type: Application
    Filed: February 18, 2020
    Publication date: August 20, 2020
    Inventors: Hung Dinh LY, Joseph Binamira SORIAGA, Wanshi CHEN, Peter GAAL, Tao LUO, Ozcan OZTURK, Karthika PALADUGU
  • Publication number: 20200245392
    Abstract: Methods, systems, and devices for wireless communications are described. One example method for wireless communications at a user equipment (UE) includes detecting a radio link failure (RLF) condition for a connection between the UE and a network over a first cell group and determining, in response to detecting the RLF condition, whether an air interface resource allocation is available for a signaling radio bearer (SRB) between the UE and the network over another cell group. The method also includes selecting, based at least in part on the determination, one of a plurality of RLF procedures. In some examples, the UE may select a first RLF procedure that fully releases radio resources when no SRB is available and a different, second RLF procedure that partially when an SRB is available between the UE and the network over a second cell group.
    Type: Application
    Filed: April 13, 2020
    Publication date: July 30, 2020
    Inventors: Yu-Ting Yu, Keiichi Kubota, Gavin Bernard Horn, Karthika Paladugu
  • Publication number: 20200221530
    Abstract: Techniques are described herein for signaling procedures that use a hierarchical mobility, which may be applied when a user equipment (UE) is operating in a radio resource control (RRC) inactive state or the RRC idle state. A wireless communication system may be configured with a plurality of areas in which one or more networks are established for communicating certain types of signals. Examples of the areas associated with networks may include a tracking area (TA), a radio access network area code (RAN-AC), a radio access network based notification area (RNA). A synchronization signal or a paging signal may be transmitted using a first set of communication resources in a first area, while the synchronization signal or the paging signal may be transmitted using a second set of communication resources in a second area different than the first set of communication resources.
    Type: Application
    Filed: December 31, 2019
    Publication date: July 9, 2020
    Inventors: Heechoon Lee, Hung Dinh Ly, Tingfang Ji, Gavin Bernard Horn, Karthika Paladugu, Ozcan Ozturk
  • Patent number: 10687263
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment concurrently communicates with a source base station (BS) and a target BS on a connection with the source BS and a connection with the target BS as part of a make-before-break (MBB) handover procedure; and performs a common packet data convergence protocol (PDCP) function for the connection with the source BS and the connection with the target BS before the connection with the source BS is released as part of the MBB handover procedure. Numerous other aspects are provided.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: June 16, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Karthika Paladugu, Gavin Bernard Horn, Prashanth Haridas Hande, Keiichi Kubota, Prasad Reddy Kadiri, Alberto Rico Alvarino, Masato Kitazoe, Umesh Phuyal, Supratik Bhattacharjee
  • Patent number: 10667192
    Abstract: Methods, systems, and devices for wireless communications are described that provide a handover may be performed based on one or more conditions at a UE and in conjunction with a handover procedure from a source base station to a target base station. The one or more conditions at the UE may be associated with successful establishment or maintenance of the second connection. In some cases, the one or more conditions at the UE may correspond to one or more measurements associated with the source base station, the target base station, one or more neighboring base stations, or any combinations thereof.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: May 26, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Karthika Paladugu, Keiichi Kubota, Gavin Bernard Horn, Prashanth Handas Hande
  • Publication number: 20200154333
    Abstract: Methods, systems, and devices for wireless communications are described that provide a handover may be performed based on one or more conditions at a UE and in conjunction with a handover procedure from a source base station to a target base station. The one or more conditions at the UE may be associated with successful establishment or maintenance of the second connection. In some cases, the one or more conditions at the UE may correspond to one or more measurements associated with the source base station, the target base station, one or more neighboring base stations, or any combinations thereof.
    Type: Application
    Filed: November 12, 2018
    Publication date: May 14, 2020
    Inventors: Karthika Paladugu, Keiichi Kubota, Gavin Bernard Horn, Prashanth Hande
  • Publication number: 20200154330
    Abstract: Methods, systems, and devices for wireless communications are described that provide a handover may be performed based on one or more conditions at a UE and in conjunction with a handover procedure from a source base station to a target base station. The one or more conditions at the UE may be associated with successful establishment or maintenance of the second connection. In some cases, the one or more conditions at the UE may correspond to one or more measurements associated with the source base station, the target base station, one or more neighboring base stations, or any combinations thereof.
    Type: Application
    Filed: November 12, 2018
    Publication date: May 14, 2020
    Inventors: Karthika Paladugu, Keiichi Kubota, Gavin Bernard Horn, Prashanth Hande
  • Publication number: 20200145888
    Abstract: Wireless communications systems and methods related to communications in a wireless network during handover and/or dual connectivity operations are provided. A user equipment (UE) transmits, to a first base station (BS), a first communication signal based on a first time-division multiplexed (TDM) configuration. The UE transmits, to a second BS different from the first BS, a second communication signal, the second communication signal being multiplexed with the first communication signal based on the first TDM configuration. The UE transmits, to the first BS, a third communication signal based on a second TDM configuration different from the first TDM configuration. The first TDM configuration and the second TDM configuration are associated with a handover from the first BS to the second BS.
    Type: Application
    Filed: October 29, 2019
    Publication date: May 7, 2020
    Inventors: Karthika Paladugu, Gavin Bernard Horn
  • Publication number: 20200059333
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a master node (MN) may receive an acknowledgment message from a secondary node (SN). The MN and the SN may provide dual connectivity with a core network for a user equipment. The MN may provide an address indication message to the SN. The address indication message may include MN downlink transport network layer (TNL) information for an SN terminated data radio bearer (DRB) that requires master cell group (MCG) resources. The address indication message may be provided in a first message that immediately follows the acknowledgment message. In some aspects, the SN may receive the address indication message, and may forward, based at least in part on the MN downlink TNL information, downlink data for the SN terminated DRB that requires MCG resources. Numerous other aspects are provided.
    Type: Application
    Filed: August 19, 2019
    Publication date: February 20, 2020
    Inventors: Karthika PALADUGU, Xipeng ZHU, Gavin Bernard HORN, Luis Fernando Brisson LOPES
  • Publication number: 20200029260
    Abstract: The present disclosure relates to methods and devices for a handover procedure which may include a user equipment (UE), first base station, and a second base station. In one aspect, the UE can receive an indication to handover from the first base station to the second base station. The UE may then establish a connection with the second base station. In another aspect, the UE can maintain a connection with the first base station over a period of time during the handover. The UE can also communicate with the first base station and the second base station during the period of time based on a time division multiplexing (TDM) pattern. The TDM pattern can comprise a pattern of subframes for communicating with the first and second base station. In another aspect, the UE can release the connection with the first base station at the end of the period of time.
    Type: Application
    Filed: July 1, 2019
    Publication date: January 23, 2020
    Inventors: Prasad Reddy KADIRI, Karthika PALADUGU, Amer CATOVIC, Umesh PHUYAL, Alberto RICO ALVARINO, Masato KITAZOE
  • Publication number: 20200022035
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a source base station (BS), an indication that the UE is to perform a conditional handover from the source BS to a target BS and is to perform at least one of: a two protocol stack handover from the source BS to the target BS or a dual connectivity handover from the source BS to the target BS. The UE may perform the conditional handover and at least one of the two protocol stack handover or the dual connectivity handover based at least in part on the indication. Numerous other aspects are provided.
    Type: Application
    Filed: June 24, 2019
    Publication date: January 16, 2020
    Inventors: Prasad Reddy KADIRI, Amer CATOVIC, Umesh PHUYAL, Masato KITAZOE, Karthika PALADUGU, Alberto RICO ALVARINO
  • Publication number: 20200022039
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may detect that a timer has expired prior to completing a handover of the UE from a source base station (BS) to a target BS. In some aspects, the UE may selectively declare, based at least in part on detecting that the timer has expired, a radio link failure. Numerous other aspects are provided.
    Type: Application
    Filed: July 9, 2019
    Publication date: January 16, 2020
    Inventors: Prasad Reddy KADIRI, Amer CATOVIC, Umesh PHUYAL, Karthika PALADUGU, Alberto RICO ALVARINO, Masato KITAZOE
  • Publication number: 20190387561
    Abstract: Methods, systems, and devices for wireless communications are described. A wireless communications system may support multi-connectivity for a user equipment (UE) with multiple distributed units (DUs) under one central unit (CU), the DUs and the CU belonging to a base station. The UE may establish radio resource control (RRC) connections with multiple cell groups corresponding to multiple DUs under the CU. The UE may transmit measurement reports that provide measurement information for cells in proximity to the UE. The UE may maintain a set of active cell groups and a set of inactive cell groups. In some cases, one or more cell groups may be identified as controlling cell groups used to transmit control information. In some examples, the UE may replicate an uplink packets and transmit the uplink packet and replicates on multiple cell groups. In some cases, the UE may aggregate an uplink transmission among multiple cell groups.
    Type: Application
    Filed: June 13, 2019
    Publication date: December 19, 2019
    Inventors: Karthika Paladugu, Yu-Ting Yu, Gavin Bernard Horn, Keiichi Kubota
  • Publication number: 20190373663
    Abstract: Methods, systems, and devices for wireless communications are described. One example method for wireless communications at a user equipment (UE) includes detecting a radio link failure (RLF) condition for a connection between the UE and a network over a first cell group and determining, in response to detecting the RLF condition, whether an air interface resource allocation is available for a signaling radio bearer (SRB) between the UE and the network over another cell group. The method also includes selecting, based at least in part on the determination, one of a plurality of RLF procedures. In some examples, the UE may select a first RLF procedure that fully releases radio resources when no SRB is available and a different, second RLF procedure that partially when an SRB is available between the UE and the network over a second cell group.
    Type: Application
    Filed: May 29, 2019
    Publication date: December 5, 2019
    Inventors: Yu-Ting Yu, Keiichi Kubota, Gavin Bernard Horn, Karthika Paladugu
  • Patent number: 10412618
    Abstract: The disclosure relates to optimistic QoS setup. A network element receives an IP packet that is not associated with a QoS request on a bearer for an application/service executing on a target client device, and initiates QoS activation for the target client device based on a combination of an application-specific identifier from the target client device and a user-specific identifier of the application/service. A server receives a session setup request that is not associated with a QoS request for an application/service executing on a target client device, the session setup request identifying one or more client devices to participate in a session, and initiates QoS activation for at least one of the client devices, before a session announcement is transmitted to the client devices, based on a combination of an application-specific identifier from the target client device and a user-specific identifier of the application/service.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: September 10, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Karthika Paladugu, Kirankumar Anchan, Arvind V. Santhanam
  • Publication number: 20190268815
    Abstract: Methods for performing a handover in wireless communications for a user plane function (UPF) are disclosed. In an aspect, the method includes establishing a tunnel between the UPF and a target base station based on information in a path switch preparation request for a make before break handover of a user equipment (UE) from a source base station to the target base station, the path switch preparation request being received in response to a request originating by the target base station. The method further includes bi-casting a downlink data packet unit (PDU) to a source base station and to the target base station with a same sequence number (SN) in a tunnel protocol, receiving PDUs from the source base station and the target base station with corresponding PDUs having the same SNs in the tunnel protocol and discarding received duplicate PDUs based on the SNs in the tunnel protocol.
    Type: Application
    Filed: February 25, 2019
    Publication date: August 29, 2019
    Inventors: Xipeng ZHU, Luis Fernando Brisson LOPES, Gavin Bernard HORN, Karthika PALADUGU
  • Publication number: 20190253945
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment concurrently communicates with a source base station (BS) and a target BS on a connection with the source BS and a connection with the target BS as part of a make-before-break (MBB) handover procedure; and performs a common packet data convergence protocol (PDCP) function for the connection with the source BS and the connection with the target BS before the connection with the source BS is released as part of the MBB handover procedure. Numerous other aspects are provided.
    Type: Application
    Filed: February 13, 2019
    Publication date: August 15, 2019
    Inventors: Karthika PALADUGU, Gavin Bernard Horn, Prashanth Haridas Hande, Keiichi Kubota, Prasad Reddy Kadiri, Alberto Rico Alvarino, Masato Kitazoe, Umesh Phuyal, Supratik Bhattacharjee
  • Patent number: 10264031
    Abstract: A method for managing jitter includes determining, by a processor of a master device, at least one of device capabilities of at least one satellite device, device capabilities of the master device, or channel conditions; determining, by the processor of the master device, a de-jitter buffer size based on the at least one of the device capabilities of the at least one satellite device, the device capabilities of the master device, or the channel conditions; and applying, by the processor of the master device, de-jitter buffer having the determined de-jitter buffer size.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: April 16, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Soumya Das, Karthika Paladugu, Arungundram Chandrasekaran Mahendran
  • Patent number: 10015216
    Abstract: Systems and methods are described herein for providing a virtual conference using a master device implemented with a personal communication device (PCD), including determining, by the master device, a latency for each of a plurality of satellite devices connected to the master device. The master device then determines an uplink buffer duration based on a difference between a highest latency and a lowest latency among the plurality of satellite devices. The master device determines a processing time for an uplink data packet, the processing time being determined based, at least in part, on the uplink buffer duration. The master device then performs signal processing at the processing time for the received uplink data packets.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: July 3, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Song Wang, Soumya Das, Sanghyun Chi, Karthika Paladugu, Soham Vikrambhai Sheth, Arungundram Chandrasekaran Mahendran
  • Publication number: 20180091560
    Abstract: A method for managing jitter includes determining, by a processor of a master device, at least one of device capabilities of at least one satellite device, device capabilities of the master device, or channel conditions; determining, by the processor of the master device, a de-jitter buffer size based on the at least one of the device capabilities of the at least one satellite device, the device capabilities of the master device, or the channel conditions; and applying, by the processor of the master device, de-jitter buffer having the determined de-jitter buffer size.
    Type: Application
    Filed: November 30, 2017
    Publication date: March 29, 2018
    Inventors: Soumya Das, Karthika Paladugu, Arungundram Chandrasekaran Mahendran