Patents by Inventor Ashok Mantravadi

Ashok Mantravadi 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: 20210120551
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a grant delay request to a base station. The grant delay request may indicate a future time, at or thereafter a base station is requested to allocate resources to the UE. The base station may transmit the uplink grant to the UE allocating the resources to the UE based on the grant delay request, and the UE may transmit, to the base station, an uplink transmission including the uplink data based on the uplink grant. The UE may transmit the grant delay request as part of a scheduling request (SR), or as part of a buffer status report (BSR), or a combination of these.
    Type: Application
    Filed: October 19, 2020
    Publication date: April 22, 2021
    Inventors: Arnaud Meylan, Arvind Vardarajan Santhanam, Sunil Kandukuri, Ashok Mantravadi, Tingfang Ji, Gavin Bernard Horn, Peter Gaal, Seyedkianoush Hosseini
  • Patent number: 10911961
    Abstract: A method of wireless communication includes identifying one or more coexistence issues corresponding to a utilized set of communication resources of a User Equipment (UE). The method also includes communicating an indication of the coexistence issue(s) to a serving base station.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: February 2, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Pranav Dayal, Tamer A. Kadous, Ashok Mantravadi, Jibing Wang, Rajat Prakash
  • Publication number: 20210028886
    Abstract: Aspects described herein relate to decoding downlink control information (DCI) based on multiple DCI sizes. A first hypothesis of multiple hypotheses for decoding a communication received in a control channel search space, wherein the multiple hypotheses are based on different corresponding DCI sizes can be determined. The communication received in the control channel search space can be decoded based on the first hypothesis. For each of the multiple hypotheses and based on the different corresponding DCI sizes, information bits can be extracted from the communication as decoded. For each extracting of the information bits, cyclic redundancy check (CRC) can be performed based on one of the different corresponding DCI sizes to determine whether extracting of the information bits yields DCI.
    Type: Application
    Filed: July 25, 2019
    Publication date: January 28, 2021
    Inventors: Alexandre PIERROT, Hari SANKAR, Shravan Kumar Reddy GARLAPATI, Afshin HAFTBARADARAN, Alessandro RISSO, Jae Ho RYU, Ashok MANTRAVADI
  • Patent number: 10887053
    Abstract: Aspects described herein relate to decoding downlink control information (DCI) based on multiple DCI sizes. A first hypothesis of multiple hypotheses for decoding a communication received in a control channel search space, wherein the multiple hypotheses are based on different corresponding DCI sizes can be determined. The communication received in the control channel search space can be decoded based on the first hypothesis. For each of the multiple hypotheses and based on the different corresponding DCI sizes, information bits can be extracted from the communication as decoded. For each extracting of the information bits, cyclic redundancy check (CRC) can be performed based on one of the different corresponding DCI sizes to determine whether extracting of the information bits yields DCI.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: January 5, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Alexandre Pierrot, Hari Sankar, Shravan Kumar Reddy Garlapati, Afshin Haftbaradaran, Alessandro Risso, Jae Ho Ryu, Ashok Mantravadi
  • Patent number: 10674389
    Abstract: Techniques for access terminal radio link monitoring on a shared communication medium are disclosed. In an aspect, an access terminal detects a missed reference signal event associated with a radio link established on the shared communication medium, wherein detecting the missed reference signal event comprises determining that the access terminal did not detect a reference signal for measuring a quality of the radio link transmitted during a reference signal configuration window, assigns an error metric to the missed reference signal event based on reference signal monitoring capabilities of the access terminal, and triggers a radio link failure based on the assigned error metric. In an aspect, the missed reference signal event may be a missed Discovery Reference Signaling (DRS) event, the error metric may be a Block Error Rate (BLER) weight, and the reference signal for measuring the quality of the radio link comprises a Cell-specific Reference Signal (CRS).
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: June 2, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Arumugam Chendamarai Kannan, Andrei Dragos Radulescu, Chirag Sureshbhai Patel, Tamer Adel Kadous, Ashok Mantravadi, Aamod Khandekar
  • Patent number: 10667222
    Abstract: Aspects of the present disclosure provide techniques for the user equipment (UE) to select a power management mode from a plurality of power management modes supported by the UE based on decoding of a portion of the downlink subframe. For example, when the UE receives a subframe from a base station, the UE may decode a control channel region of the subframe to determine whether the subframe includes a channel grant allocated to the UE. If no channel grant is included in the subframe, the UE may select a power management mode for the UE from the plurality of power management modes supported by the UE that maximizes the UE's sleep opportunities while balancing the deficient performance costs.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: May 26, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Gaurav Nigam, Sibasish Das, Supratik Bhattacharjee, Ankit Verma, Hongbo Yan, Navid Ehsan, Ashok Mantravadi, Surendra Boppana
  • Patent number: 10644772
    Abstract: Techniques are described for wireless communication at a wireless communication device. A determination may be made regarding the number of receive chains, of a plurality of receive chains, to enable for a channel. Power to the receive chains may be regulated based on the determined number of enabled receive chains. The determination may be based on a transmission scheduling rate for the wireless communication device and a rank for the channel. In some examples, the determination may further be based on a channel quality of the channel and/or a type of traffic scheduled for the channel.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: May 5, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Qijia Liu, Ashok Mantravadi, Jae Won Yoo, Amir Aminzadeh Gohari
  • Publication number: 20200092818
    Abstract: In an aspect, a UE may determine a set of parameters associated with each of a plurality of different operation modes supported by the UE and transmit UE capability information including the set of parameters to a base station, where at least one operation mode comprises a power efficient mode. The UE may receive configuration information based on the UE capability information including an indication of an operation mode of the plurality of different operation modes. A base station may receive UE capability information including a set of parameters associated with each of a plurality of different operation modes supported by a UE and determine an operation mode of the plurality of different operation modes for the UE based on the UE capability information. The base station may transmit configuration information including an indication of the operation mode of the plurality of different operation modes.
    Type: Application
    Filed: August 19, 2019
    Publication date: March 19, 2020
    Inventors: Jing JIANG, Peter Pui Lok ANG, Ashok MANTRAVADI, Aamod KHANDEKAR, Krishna Kiran MUKKAVILLI, Joseph Binamira SORIAGA, Naga BHUSHAN, Yuanning YU
  • Publication number: 20200037264
    Abstract: Some techniques and apparatuses described herein protect components of a user equipment (UE), such as a low noise amplifier (LNA), from internal interference. For example, the LNA may be disconnected from a receive chain during periods of high internal interference, and may be reconnected to the receive chain during periods of low internal interference. Furthermore, some techniques and apparatuses described herein improve performance by adjusting operations of the UE to account for and/or offset increased internal interference due to a receive chain that does not include a surface acoustic wave (SAW) filter to remove unwanted radio frequency signals. For example, one or more operations of a baseband processor may be modified to account for the increased internal interference. Additionally, or alternatively, reporting of channel state information may be modified to account for increased internal interference of the UE. Additional details are described herein.
    Type: Application
    Filed: July 16, 2019
    Publication date: January 30, 2020
    Inventors: Steven Charles CICCARELLI, Vikas MAHAJAN, Tae Min KIM, Supratik BHATTACHARJEE, Chitaranjan PELUR SUKUMAR, Ashok MANTRAVADI, Pooyan AMINI, Alberto RICO ALVARINO, Carl HARDIN
  • Patent number: 10420118
    Abstract: Optimizing multiflow performance and priority across UEs and networks including receive antenna selection at the UEs, CSI measurement and reporting, and scheduling for multiflow operation. The techniques may evaluate channel conditions for a UE for multiple access points and different combinations of antennas and determine how the UE should feedback CSI for transmissions from the multiple access points. The disclosed techniques also include techniques for scheduling transmissions from the multiple access points using the CSI information to optimize multiflow performance and priority across UEs and networks. Various scheduling modes use feedback from UEs including the maximum supported rates for each link and/or rates based on the maximum sum capacity of the links used concurrently. The scheduler may maintain separate priority lists for each access point or a single priority list across both access points. The techniques may be used for multiflow operation using LTE and WLAN links.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: September 17, 2019
    Assignee: Qualcomm Incorporated
    Inventors: Xiaoxia Zhang, Ashok Mantravadi, Pranav Dayal, Gavin Bernard Horn
  • Publication number: 20180302864
    Abstract: Aspects of the present disclosure provide techniques for the user equipment (UE) to select a power management mode from a plurality of power management modes supported by the UE based on decoding of a portion of the downlink subframe. For example, when the UE receives a subframe from a base station, the UE may decode a control channel region of the subframe to determine whether the subframe includes a channel grant allocated to the UE. If no channel grant is included in the subframe, the UE may select a power management mode for the UE from the plurality of power management modes supported by the UE that maximizes the UE's sleep opportunities while balancing the deficient performance costs.
    Type: Application
    Filed: March 20, 2018
    Publication date: October 18, 2018
    Inventors: Gaurav NIGAM, Sibasish DAS, Supratik BHATTACHARJEE, Ankit VERMA, Hongbo YAN, Navid EHSAN, Ashok MANTRAVADI, Surendra BOPPANA
  • Publication number: 20180160328
    Abstract: Techniques for access terminal radio link monitoring on a shared communication medium are disclosed. In an aspect, an access terminal detects a missed reference signal event associated with a radio link established on the shared communication medium, wherein detecting the missed reference signal event comprises determining that the access terminal did not detect a reference signal for measuring a quality of the radio link transmitted during a reference signal configuration window, assigns an error metric to the missed reference signal event based on reference signal monitoring capabilities of the access terminal, and triggers a radio link failure based on the assigned error metric. In an aspect, the missed reference signal event may be a missed Discovery Reference Signaling (DRS) event, the error metric may be a Block Error Rate (BLER) weight, and the reference signal for measuring the quality of the radio link comprises a Cell-specific Reference Signal (CRS).
    Type: Application
    Filed: November 30, 2017
    Publication date: June 7, 2018
    Inventors: Arumugam CHENDAMARAI KANNAN, Andrei Dragos RADULESCU, Chirag Sureshbhai PATEL, Tamer Adel KADOUS, Ashok MANTRAVADI, Aamod KHANDEKAR
  • Patent number: 9923611
    Abstract: Systems and methods are provided for enhancing signal quality at receivers in a wireless network. In one embodiment, an antenna is selected from a subset of antennas based on a signal quality parameter such as received signal power or signal-to-noise ratio (SNR). In another embodiment, multiple antennas are applied to independent signal processing paths for the respective antennas where output from the paths is then combined to enhance overall signal quality at the receiver.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: March 20, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Fuyun Ling, Linbo Li, Ashok Mantravadi
  • Patent number: 9867194
    Abstract: A system capacity improvement is achieved by dynamically selecting a particular antenna mode of operation from the multiple radio access technology modes. In some implementations, the system capacity improvement is achieved by dynamically generating an indication of a user equipment (UE) antenna capability during a communication connection. The UE's indication of its antenna capability is dynamic and/or is subject to change throughout the duration of the communication connection. The indication may be sent to a base station.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: January 9, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Tamer Adel Kadous, Ashok Mantravadi
  • Patent number: 9832785
    Abstract: A method of wireless communication includes adjusting a channel quality indicator (CQI) to compensate for coexistence interference experienced between communication resources (such as an LTE radio and a Bluetooth radio). The CQI may be set to zero, falsely indicating to a serving enhanced NodeB that a UE is out of range, thereby creating a gap in LTE operation that may be used by an alternate radio access technology. To compensate for fluctuating interference, the CQI may be adjusted to incorporate average coexistence interference over a period of time. Alternatively, the CQI at a time may incorporate coexistence interference regardless of whether interference is experienced at that specific time. A CQI value may also be boosted to compensate for a CQI backoff. CQI may be adjusted to avoid a spiral of death effect.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: November 28, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Tamer Adel Kadous, Pranav Dayal, Ashok Mantravadi, Peter Gaal, Jibing Wang
  • Publication number: 20170324458
    Abstract: Techniques are described for wireless communication at a wireless communication device. A determination may be made regarding the number of receive chains, of a plurality of receive chains, to enable for a channel. Power to the receive chains may be regulated based on the determined number of enabled receive chains. The determination may be based on a transmission scheduling rate for the wireless communication device and a rank for the channel. In some examples, the determination may further be based on a channel quality of the channel and/or a type of traffic scheduled for the channel.
    Type: Application
    Filed: May 1, 2017
    Publication date: November 9, 2017
    Inventors: Qijia Liu, Ashok Mantravadi, Jae Won Yoo, Amir Aminzadeh Gohari
  • Patent number: 9686800
    Abstract: Certain aspects of the present disclosure relate to techniques for reporting Channel Quality Indicator (CQI). In certain aspects, a User Equipment (UE) may schedule switch from at least a first set of zero or more antennas used by the UE, to at least one second set of zero or more antennas, wherein the first and second sets differ by at least one antenna. The UE may determine a Channel Quality Indicator (CQI) to be reported from the UE for use at a base station in a subsequent CQI subframe set, based at least on the scheduled switch. The UE may thereafter transmit the CQI to the base station.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: June 20, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Arul Durai Murugan Palanivelu, Kapil Bhattad, Dhananjay Ashok Gore, Ashok Mantravadi
  • Patent number: 9585156
    Abstract: When communications of a single radio access technology (RAT), or different radio access technologies in a proximate communication spectrum are operating at the same time, potential interference between devices may occur. To reduce the interference, the time division duplex (TDD) configuration of one or more conflicting device may be altered. For example, at the edge of a communication region, TDD configurations used by edge base stations to communicate with mobile devices may be set to reduce interference. As another example, communications of a first device may be altered so the first device schedules uplink communications when a second device also has uplink communications scheduled. Other configurations may also be implemented.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: February 28, 2017
    Assignee: QUALCOMM INCORPORATED
    Inventors: Kapil Bhattad, Dhananjay Ashok Gore, Tamer Adel Kadous, Ashok Mantravadi, Ahmed Sadek, Raj Kumar
  • Patent number: 9578649
    Abstract: To improve performance in devices capable of communication using multiple radio access technologies (RATs), a gap pattern may be constructed in which a first RAT is quieted during certain times to allow for a second RAT to operate without interference. Gap patterns may be constructed based on timeline constraints, such as grant scheduling and HARQ performance, or based on desired performance levels of one or more of the RATs. Gap patterns may be selected by a user equipment or base station. Gap patterns may be selected to protect information in certain subframes. Potential gap patterns may be assigned weights indicating their desirability.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: February 21, 2017
    Assignee: QUALCOMM INCORPORATED
    Inventors: Pranav Dayal, Tamer Adel Kadous, Rajat Prakash, Ashok Mantravadi, Ahmed K. Sadek
  • Patent number: 9554319
    Abstract: Systems and methodologies are described that facilitate monitoring RF channels in a wireless communication environment to determine whether one or more channels comprise a forward-link-only (FLO) signal. A receiver can receive a first RF channel with a FLO signal and can monitor other RF channels for FLO signals. Upon a determination that a monitored RF channel comprises a FLO signal, the receiver can switch between the first RF channel and the monitored RF channel, employing information on current MLC decoding status, to facilitate providing seamless reception of the FLO signal, which can be superframe synchronized between RF channels. FLO signal detection can be performed using one or more of a wide-area identification channel energy detection protocol and a wide-area overhead information symbol decoding error detection protocol.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: January 24, 2017
    Assignee: QUALCOMM INCORPORATED
    Inventors: Linbo Li, Ashok Mantravadi, Fuyun Ling, Raghuraman Krishnamoorthi