Patents by Inventor Chetan Gopalakrishnan Chakravarthy

Chetan Gopalakrishnan Chakravarthy 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: 9942805
    Abstract: The disclosure provides for a UE handling messages in wireless communication. The disclosure provides for a UE partially exchanging a first signaling-related message associated with a first UE configuration with a network entity and triggering a state transition message that initiates a change to a second UE configuration different from the first UE configuration. In an aspect, the UE determines that the first message has not been successfully received or successfully transmitted. In an aspect, the UE sends an indication message to coordinate discarding of the first message with the network entity and receives, after sending the indication message, a second signaling-related message associated with the second UE configuration. In another aspect, the UE, after partially sending a signaling-related message, receives a reconfiguration request associated with a second UE configuration. In an aspect, the UE determines that the message has not been successfully transmitted and causes a reconfiguration failure.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: April 10, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Adarsh Kumar Jinnu, Ansah Ahmed Sheik, Vagish Gupta, Sitaramanjaneyulu Kanamarlapudi, Chetan Gopalakrishnan Chakravarthy, Arvindhan Kumar, Yongsheng Shi
  • Publication number: 20170272925
    Abstract: Methods for receiving emergency messages on a mobile communication device having a first subscription and a second subscription sharing a radio frequency (RF) resource may include prioritizing, by a processor of the mobile communication device, the first subscription for a predetermined time period in order to receive an emergency message, determining, by the processor, whether the first subscription should be de-prioritized before the predetermined time period expires based on a reception history of the first subscription during the predetermined time period, and tuning the RF resource to the second subscription before the predetermined time period expires in response to determining that the first subscription should be de-prioritized before the predetermined time period expires.
    Type: Application
    Filed: March 15, 2016
    Publication date: September 21, 2017
    Inventors: Phaneendra Rupanagudi Venkata, Sitaramanjaneyulu Kanamarlapudi, Arvindhan Kumar, Chetan Gopalakrishnan Chakravarthy, Neeleshwar Iyer, Maansi Jain
  • Patent number: 9769829
    Abstract: Aspects related to allocating transmission power in wireless communications are described. It can be determined whether data is to be transmitted on an uplink control channel in one or more upcoming transmission time intervals (TTIs). Based on this determination, transmission power is allocated to an uplink enhanced dedicated channel in the one or more upcoming TTIs. Where uplink control channel data is not to be transmitted in the one or more upcoming TTIs, transmission power that would have been used for the uplink control channels can instead be allocated to the enhanced dedicated channel.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: September 19, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Luna Sapna D'Souza, Arvindhan Kumar, Chetan Gopalakrishnan Chakravarthy, Murali Paravath Menon, Omesh Kumar Handa
  • Patent number: 9768910
    Abstract: The present aspects relate to enabling a user equipment (UE) to operate in Dual Carrier mode during wireless communication, including generating an event trigger to be transmitted to a network entity in response to the UE satisfying a maximum transmit power threshold value, wherein generating the event trigger initiates a trigger timer that controls when to transmit the event trigger to the network. The aspects further include determining whether a plurality of optimization conditions are met, and modifying a transmission scheme based on the determination that the plurality of optimization conditions are met, wherein modifying the transmission scheme prevents the transmission of the event trigger to the network entity and resets the trigger timer.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: September 19, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Sitaramanjaneyulu Kanamarlapudi, Arvindhan Kumar, Chetan Gopalakrishnan Chakravarthy, Luna Sapna D'Souza, Ajinkya Satish Godbole, Karthik Jayaprakash
  • Patent number: 9699827
    Abstract: Aspects described herein relate to transmitting hybrid automatic repeat/request (HARQ) data in continuous packet connectivity (CPC) mode. Data is transmitted to a network according to a discontinuous transmit (DTX) cycle in a CPC mode. The CPC mode can be exited, however, based at least in part on detecting available HARQ data for transmission. In this regard, a next transmission opportunity configured for transmitting the available HARQ data is determined, where the next transmission opportunity is not within a transmission time instance defined by the DTX cycle, and the available HARQ data is transmitted during the next transmission opportunity outside of the CPC mode.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: July 4, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Sitaramanjaneyulu Kanamarlapudi, Chetan Gopalakrishnan Chakravarthy, Arvindhan Kumar, Luna Sapna D'Souza, Tejas Pravin Sathe
  • Patent number: 9622080
    Abstract: Techniques for managing cell update messages are described here. An information element (IE) that indicates the security status of a user equipment (UE) may be included in the cell update message when a cell update procedure is triggered during an ongoing security mode procedure. To ensure the size of the cell update message is equal to or smaller than the transport format size, other IEs may be omitted from the cell update message if the security mode procedure is in progress. Alternatively, if the security mode procedure is not in progress, there may not be a need to update the security status of the UE and, thus, the IE that indicates the security status may be omitted from the cell update message to reduce the size of the cell update message.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: April 11, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Ansah Ahmed Sheik, Chetan Gopalakrishnan Chakravarthy, Liangchi Hsu, Sarath Kumar Pujari
  • Patent number: 9603170
    Abstract: Aspects of the present disclosure provide for a method and an apparatus for wireless communications using an intelligent Random Access Channel (RACH) procedure that may increase the probability of obtaining an available E-DCH resource quickly in a Universal Mobile Telecommunication System.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: March 21, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Arvindhan Kumar, Luna Sapna D'Souza, Chetan Gopalakrishnan Chakravarthy, Guruvayurappan Vasudevan, Vaishakh Rao
  • Patent number: 9462592
    Abstract: Data is selectively transmitted over one or more carriers of a set of carriers. According to some aspects of the disclosure, a decision may be made to forgo the transmission of a preamble via one of the carriers (e.g., channels). For example, in a multi-carrier system, transmission of a preamble via one carrier may be inhibited if all of the data can be transmitted via another carrier. According to some aspects of the disclosure, a decision may be made to transmit different types of data on a single carrier rather than on multiple carriers. For example, a single carrier may be used to transmit schedule data and non-scheduled data if all of the data can be transmitted on one of the carriers (e.g., during a single transmission time interval). In this case, transmission of a preamble on another one of the carriers may therefore be inhibited.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: October 4, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Sitaramanjaneyulu Kanamarlapudi, Arvindhan Kumar, Luna Sapna D'Souza, Chetan Gopalakrishnan Chakravarthy
  • Patent number: 9462628
    Abstract: An apparatus and a method are provided for improving user experience in a multi-radio access bearer (multi-RAB) wireless communication system. After a user equipment establishes a circuit-switched communication link and a packet-switched communication link with a core network, it may receive an indication of an error associated with the packet-switched communication link. Here, if the value of a timer such as the RAB re-establishment timer T314 has a predetermined value (e.g., 0), the user equipment may release the packet-switched communication link, and maintain the circuit-switched communication link. The packet-switched communication link may then be re-established. In this fashion, errors that may occur on the data call need not interrupt a voice call.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: October 4, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Kiran Patil, Sathish Krishnamoorthy, Suresh Sanka, Vinoth Palaniappan, Chetan Gopalakrishnan Chakravarthy, Sitaramanjaneyulu Kanamarlapudi, Rajiv R. Nambiar
  • Patent number: 9444753
    Abstract: Methods and apparatus are described for improving call performance and data throughput. The methods and apparatus include receiving one or more packet data units (PDUs) during a transmission time interval (TTI) from a network entity, wherein the one or more PDUs are associated with a radio bearer. Further, the methods and apparatus include determining one or more out-of-order PDUs from the one or more PDUs. Moreover, the methods and apparatus include reordering the one or more out-of-order PDUs, wherein the one or more out-of-order PDUs are reordered within the TTI. Additionally, the methods and apparatus include processing the one or more reordered PDUs.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: September 13, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Sitaramanjaneyulu Kanamarlapudi, Babla Lamba, Chetan Gopalakrishnan Chakravarthy, Krishna Chaitanya Bellam, Arvindhan Kumar, Luna Sapna D'Souza
  • Publication number: 20160212622
    Abstract: Aspects of the disclosure provide for a method of efficiently implementing security configurations for multiple domains between a network entity and a UE in a wireless system. For instance, this disclosure provides for a network entity sending to a UE a first security mode command for a first domain, receiving a first security mode complete message in response to the first security mode command, and sending a second security mode command for a second domain. In an aspect, the second security mode command is sent in response to receiving the first security mode complete message. In an aspect, the UE does not receive a RLC acknowledgement. In another aspect, the UE saves the second security mode command until it receives the RLC acknowledgement. In an aspect, the network entity sends the second security mode command in response to receiving a message protected with first security procedure parameters.
    Type: Application
    Filed: August 20, 2015
    Publication date: July 21, 2016
    Inventors: Vagish GUPTA, Sitaramanjaneyulu Kanamarlapudi, Chetan Gopalakrishnan Chakravarthy, Liangchi Hsu, Ansah Ahmed Sheik, Adarsh Kumar Jinnu
  • Patent number: 9398546
    Abstract: In aspects for controlling transmit power of dual carrier uplink transmission for wireless communications, a user equipment (UE) determines presence of transmit power imbalance between a first and second radio frequency (RF) carrier of respective dedicated physical control channels for uplink transmission. The UE determines an estimate of a remaining available transmit power after estimating the transmit power used by each of the dedicated physical control channels. The UE allocates the estimated remaining available transmit power to the first and second RF carrier respectively based on both a size of data granted for uplink transmission on each RF carrier and on an effective power per bit on each RF carrier. Additionally, the UE determines a higher reliability value for each RF carrier based on a lower data error rate, identifies priority values for data to be transmitted and sends higher priority data over the RF carrier with higher reliability value.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: July 19, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Sitaramanjaneyulu Kanamarlapudi, Chetan Gopalakrishnan Chakravarthy, Liangchi Hsu
  • Patent number: 9386528
    Abstract: An example method may include receiving a first subframe. In addition, the example method may include decoding information transmitted in the first subframe. Further, the example method may include switching to an inactive mode subsequent to the completion of the reception of the first subframe. Further still, the example method may include exiting the inactive mode and decoding downlink data transmitted in one or more second subframes in a current reception (Rx) burst time interval when the decoded information transmitted in the first subframe indicates an upcoming transmission of downlink data in the one or more second subframes.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: July 5, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Sitaramanjaneyulu Kanamarlapudi, Arvindhan Kumar, Chetan Gopalakrishnan Chakravarthy, Jimmy Chi-Wai Chui, Hemanth Kumar Rayapati
  • Patent number: 9380525
    Abstract: Access terminals are adapted to facilitate optimized tune-away operations in multi-subscription wireless communication devices. According to one example, an access terminal can communicate on a first subscription. After a period of time, the access terminal can tune away from the first subscription to a second subscription to perform a communication activity corresponding to the second subscription. After tuning back to the first subscription, the access terminal may transmit uplink data while ignoring any absolute grant received after tuning back to the first subscription, and/or transmit a scheduling information message in response to tuning back to the first subscription from the second subscription. Other aspects, embodiments, and features are also included.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: June 28, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Sitaramanjaneyulu Kanamarlapudi, Chetan Gopalakrishnan Chakravarthy, Arvindhan Kumar, Aravindh Suriyamoorthy, Pavankumar Gabbita
  • Publication number: 20160183200
    Abstract: In aspects for controlling transmit power of dual carrier uplink transmission for wireless communications, a user equipment (UE) determines presence of transmit power imbalance between a first and second radio frequency (RF) carrier of respective dedicated physical control channels for uplink transmission. The UE determines an estimate of a remaining available transmit power after estimating the transmit power used by each of the dedicated physical control channels. The UE allocates the estimated remaining available transmit power to the first and second RF carrier respectively based on both a size of data granted for uplink transmission on each RF carrier and on an effective power per bit on each RF carrier. Additionally, the UE determines a higher reliability value for each RF carrier based on a lower data error rate, identifies priority values for data to be transmitted and sends higher priority data over the RF carrier with higher reliability value.
    Type: Application
    Filed: July 2, 2015
    Publication date: June 23, 2016
    Inventors: Sitaramanjaneyulu KANAMARLAPUDI, Chetan Gopalakrishnan Chakravarthy, Liangchi Hsu
  • Publication number: 20160150522
    Abstract: The present disclosure presents a method and an apparatus for uplink resource management at a user equipment (UE). For example, the disclosure presents a method for uplink resource management at a UE by detecting that a radio link control (RLC) transmission window is full at the UE after acquiring high speed-random access channel (HS-RACH) resources, initiating a message from the UE to a network entity in response to the detection for triggering transmission of a status protocol data unit (PDU) from the network entity to the UE, and receiving the status PDU from the network entity in response to the transmission. The present disclosure may also include transmitting new PDUs or re-transmitting un-acknowledged PDUs to the network entity based at least on information received in the status PDU. As such, uplink resource management at a UE may be achieved.
    Type: Application
    Filed: May 21, 2015
    Publication date: May 26, 2016
    Inventors: Sitaramanjaneyulu KANAMARLAPUDI, Arvindhan KUMAR, Nikhil Abhay PAI, Chetan Gopalakrishnan CHAKRAVARTHY
  • Publication number: 20160135097
    Abstract: The disclosure provides for a UE handling messages in wireless communication. The disclosure provides for a UE partially exchanging a first signaling-related message associated with a first UE configuration with a network entity and triggering a state transition message that initiates a change to a second UE configuration different from the first UE configuration. In an aspect, the UE determines that the first message has not been successfully received or successfully transmitted. In an aspect, the UE sends an indication message to coordinate discarding of the first message with the network entity and receives, after sending the indication message, a second signaling-related message associated with the second UE configuration. In another aspect, the UE, after partially sending a signaling-related message, receives a reconfiguration request associated with a second UE configuration. In an aspect, the UE determines that the message has not been successfully transmitted and causes a reconfiguration failure.
    Type: Application
    Filed: August 11, 2015
    Publication date: May 12, 2016
    Inventors: Adarsh Kumar JINNU, Ansah Ahmed Sheik, Vagish Gupta, Sitaramanjaneyulu Kanamarlapudi, Chetan Gopalakrishnan Chakravarthy, Arvindhan Kumar, Yongsheng Shi
  • Patent number: 9338713
    Abstract: Apparatus and methods are disclosed for a multi-SIM/multi-standby wireless user equipment (UE) configured for tune-away operations enabling simultaneous communication on multiple subscriptions using a shared RF chain while maintaining an ongoing signaling procedure on a primary subscription. The UE performs a signaling procedure with a first network associated with a first subscription, and decodes a downlink channel of the first network during an initial period of a transmission time interval (TTI). If the decoded downlink channel indicates that no data of the first subscription is destined to the UE during the current TTI, the UE tunes away to a second subscription to receive data from a second network associated with the second subscription.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: May 10, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Chetan Gopalakrishnan Chakravarthy, Sitaramanjaneyulu Kanamarlapudi
  • Publication number: 20160113035
    Abstract: Aspects of the present disclosure provide for a method and an apparatus for wireless communications using an intelligent Random Access Channel (RACH) procedure that may increase the probability of obtaining an available E-DCH resource quickly in a Universal Mobile Telecommunication System.
    Type: Application
    Filed: December 28, 2015
    Publication date: April 21, 2016
    Inventors: Arvindhan Kumar, Luna Sapna D'Souza, Chetan Gopalakrishnan Chakravarthy, Guruvayurappan Vasudevan, Vaishakh Rao
  • Publication number: 20160112373
    Abstract: Techniques for managing cell update messages are described here. An information element (IE) that indicates the security status of a user equipment (UE) may be included in the cell update message when a cell update procedure is triggered during an ongoing security mode procedure. To ensure the size of the cell update message is equal to or smaller than the transport format size, other IEs may be omitted from the cell update message if the security mode procedure is in progress. Alternatively, if the security mode procedure is not in progress, there may not be a need to update the security status of the UE and, thus, the IE that indicates the security status may be omitted from the cell update message to reduce the size of the cell update message.
    Type: Application
    Filed: April 8, 2015
    Publication date: April 21, 2016
    Inventors: Ansah Ahmed SHEIK, Chetan Gopalakrishnan CHAKRAVARTHY, Liangchi HSU, Sarath Kumar PUJARI