Patents by Inventor Aamod Khandekar

Aamod Khandekar 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: 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
  • 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
  • Patent number: 10470143
    Abstract: A method for communication includes obtaining a timing signal from a timing synchronization reference source, computing a system frame number (SFN)—direct frame number (DFN) offset, creating a timing fingerprint using the timing signal and the SFN-DFN offset, the timing fingerprint also comprising additional timing information, entering the timing fingerprint into a database, continually updating the timing fingerprint, determining whether the timing signal remains within a threshold, if the timing signal exceeds the threshold, iterating the timing fingerprint, verifying the timing fingerprint to determine whether there is a timing inconsistency between a most recent timing fingerprint and current time, if the timing fingerprint is verified, using the SFN-DFN offset to derive current DFN timing to decode a sidelink control information (SCI) communication, and if the SCI communication is decoded, using the timing signal for communicating over a sidelink communication channel.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: November 5, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Michael Corley, Arvind Vardarajan Santhanam, Scott Hoover, Aamod Khandekar, Subramanya Rao, Prabhu Kandasamy, Alexandre Pierrot
  • Publication number: 20190289561
    Abstract: A method for communication includes obtaining a timing signal from a timing synchronization reference source, computing a system frame number (SFN)-direct frame number (DFN) offset, creating a timing fingerprint using the timing signal and the SFN-DFN offset, the timing fingerprint also comprising additional timing information, entering the timing fingerprint into a database, continually updating the timing fingerprint, determining whether the timing signal remains within a threshold, if the timing signal exceeds the threshold, iterating the timing fingerprint, verifying the timing fingerprint to determine whether there is a timing inconsistency between a most recent timing fingerprint and current time, if the timing fingerprint is verified, using the SFN-DFN offset to derive current DFN timing to decode a sidelink control information (SCI) communication, and if the SCI communication is decoded, using the timing signal for communicating over a sidelink communication channel.
    Type: Application
    Filed: March 13, 2018
    Publication date: September 19, 2019
    Inventors: Michael CORLEY, Arvind Vardarajan SANTHANAM, Scott HOOVER, Aamod KHANDEKAR, Subramanya RAO, Prabhu KANDASAMY, Alexandre PIERROT
  • Patent number: 10420078
    Abstract: Systems and methodologies are described that facilitate defining new control channels in legacy wireless networks. Control data resources for new systems can be defined over resources reserved for general data communications in the legacy wireless network specification. In this regard, legacy devices can still be supported by devices implementing new control data resources, and the new control data resources can avoid substantial interference that is typically exhibited over legacy control and/or reference signal resources by instead using the general data resources. In addition, new system devices can avoid scheduling data communication resources over the new control resources to create a substantially non-interfered global control segment. Control data can be transmitted over the segment using beacon-based technologies, reuse schemes, and/or the like.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: September 17, 2019
    Inventors: Aamod Khandekar, Juan Montojo, Avneesh Agrawal
  • Patent number: 10314037
    Abstract: Methods, systems, and devices for wireless communication are described that provide for reduced timing between certain downlink communications and responsive uplink communications relative to certain legacy systems (e.g., legacy LTE systems). A user equipment (UE) or base station may be capable of operating using two or more timing configurations that each include an associated time period between receipt of a downlink communication (e.g., a grant of uplink resources or shared channel data) and a responsive uplink communication (e.g., an uplink transmission using the granted uplink resources or feedback of successful reception of the shared channel data). In cases where a UE or base station are capable of two or more timing configurations, a timing configuration for a transmission may be determined and the responsive uplink communication transmitted according to the determined timing configuration.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: June 4, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Wanshi Chen, Seyedkianoush Hosseini, Peter Gaal, Srinivas Yerramalli, Hao Xu, Jing Sun, Shimman Arvind Patel, Aamod Khandekar
  • Patent number: 10305618
    Abstract: Techniques for transmitting and detecting for overhead channels and signals in a wireless network are described. In an aspect, a base station may blank (i.e., not transmit) at least one overhead transmission on certain resources in order to detect for the at least one overhead transmission of another base station. In one design, the base station may (i) send the overhead transmission(s) on a first subset of designated resources and (ii) blank the overhead transmission(s) on a second subset of the designated resources. The designated resources may be resources on which the overhead transmission(s) are sent by macro base stations. The base station may detect for the overhead transmission(s) from at least one other base station on the second subset of the designated resources. In another aspect, the base station may transmit the overhead transmission(s) on additional resources different from the designated resources.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: May 28, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Ravi Palanki, Aamod Khandekar, Naga Bhushan
  • Patent number: 10291349
    Abstract: Techniques for using multiple modulation schemes for a single packet are described. Each data packet is processed and transmitted in up to T blocks, where T>1. Multiple modulation schemes are used for the T blocks to achieve good performance. A transmitter encodes a data packet to generate code bits. The transmitter then forms a block of code bits with the code bits generated for the packet, determines the modulation scheme to use for the block (e.g., based on a mode/rate selected for the packet), maps the code bits for the block based on the modulation scheme to obtain data symbols, and processes and transmits the block of data symbols to a receiver. The transmitter generates and transmits another block in similar manner until the data packet is decoded correctly or all T blocks have been transmitted. The receiver performs the complementary processing to receive and decode the packet.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: May 14, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Aamod Khandekar, Avneesh Agrawal
  • Publication number: 20180206258
    Abstract: A UE may determine a number of resources granted for uplink or downlink communication in a processing window. The resources may include uplink resources or downlink resources and the processing windows may include a predetermined number of subframes. For uplink (UL) transmissions, this may include determining a number of transport block bits, resource blocks, or other resources scheduled in one or more first UL channel grants for a first UL channel, and determining a number of such resources scheduled in a second UL grant for a second UL channel. For downlink (DL) transmissions, the determining may include determining a number of resources received on a first DL channel in each subframe of a set of subframes, and determining a number of resources received on a second DL channel. The determined number of UL or DL resources may be compared to a corresponding threshold which his based on the UE capabilities and processed in accordance a result of the comparison. These and additional aspects are described herein.
    Type: Application
    Filed: January 16, 2018
    Publication date: July 19, 2018
    Inventors: Seyedkianoush HOSSEINI, Amir FARAJIDANA, Wanshi CHEN, Peter GAAL, Brian Clarke BANISTER, Aamod KHANDEKAR
  • 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: 9949278
    Abstract: Systems and methodologies are described that facilitate mitigating effect of non-linear distortion from a power amplifier on a spectral mask margin. Power limit indications can be analyzed in scheduling mobile devices. Mobile devices with power limits can be scheduled on inner subbands. Other mobile devices can employ remaining portions of an allocated spectrum. Further, mobile devices can evaluate and establish a power amplifier backoff based upon the subband scheduling.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: April 17, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Aamod Khandekar, Alexei Gorokhov, Rajat Prakash
  • Publication number: 20180014301
    Abstract: Methods, systems, and devices for wireless communication are described that provide for reduced timing between certain downlink communications and responsive uplink communications relative to certain legacy systems (e.g., legacy LTE systems). A user equipment (UE) or base station may be capable of operating using two or more timing configurations that each include an associated time period between receipt of a downlink communication (e.g., a grant of uplink resources or shared channel data) and a responsive uplink communication (e.g., an uplink transmission using the granted uplink resources or feedback of successful reception of the shared channel data). In cases where a UE or base station are capable of two or more timing configurations, a timing configuration for a transmission may be determined and the responsive uplink communication transmitted according to the determined timing configuration.
    Type: Application
    Filed: July 5, 2017
    Publication date: January 11, 2018
    Inventors: Wanshi Chen, Seyedkianoush Hosseini, Peter Gaal, Srinivas Yerramalli, Hao Xu, Jing Sun, Shimman Arvind Patel, Aamod Khandekar
  • Patent number: 9860033
    Abstract: Transmission schemes that can flexibly achieve the desired spatial multiplexing order, spatial diversity order, and channel estimation overhead order are described. For data transmission, the assigned subcarriers and spatial multiplexing order (M) for a receiver are determined, where M?1. For each assigned subcarrier, M virtual antennas are selected from among V virtual antennas formed with V columns of an orthonormal matrix, where V?M. V may be selected to achieve the desired spatial diversity order and channel estimation overhead order. Output symbols are mapped to the M virtual antennas selected for each assigned subcarrier by applying the orthonormal matrix. Pilot symbols are also mapped to the V virtual antennas. The mapped symbols are provided for transmission from T transmit antennas, where T?V. Transmission symbols are generated for the mapped symbols, e.g., based on OFDM or SC-FDMA. Different cyclic delays may be applied for the T transmit antennas to improve diversity.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: January 2, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Tamer Kadous, Aamod Khandekar, Dhananjay Ashok Gore, Alexei Gorokhov
  • Patent number: 9801188
    Abstract: Providing for interference reduction and/or avoidance utilizing backhaul signaling between wireless access points (APs) of a wireless access network (AN) is described herein. By way of example, an interference avoidance request (IAR) can be issued by an AP to reduce signal interference on forward link (FL) and/or downlink (DL) transmissions by neighboring APs. The IAR can be routed via a backhaul network and/or over-the-air via access terminals (ATs) coupled with the AP or one or more interfering APs. Upon receiving the IAR, an interfering AP can determine reduced transmit power levels for FL and/or RL transmissions and respond to the IAR. The response can include reduced power levels and can be sent via the backhaul network or OTA. By employing the backhaul network in full or in part, interference avoidance can be conducted even for semi-planned or unplanned heterogeneous networks coupled by the backhaul.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: October 24, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Aamod Khandekar, Avneesh Agrawal, Ashwin Sampath, Gavin B. Horn, Alexei Gorokhov, Naga Bhushan, Tingfang Ji
  • Patent number: 9668206
    Abstract: Techniques for multiplexing and transmitting multiple data streams are described. Transmission of the multiple data streams occurs in “super-frames”. Each super-frame has a predetermined time duration and is further divided into multiple (e.g., four) frames. Each data block for each data stream is outer encoded to generate a corresponding code block. Each code block is partitioned into multiple subblocks, and each data packet in each code block is inner encoded and modulated to generate modulation symbols for the packet. The multiple subblocks for each code block are transmitted in the multiple frames of the same super-frame, one subblock per frame. Each data stream is allocated a number of transmission units in each super-frame and is assigned specific transmission units to achieve efficient packing. A wireless device can select and receive individual data streams.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: May 30, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Rajiv Vijayan, Aamod Khandekar, Fuyun Ling, Gordon Kent Walker, Murali Ramaswamy Chari
  • Patent number: 9660776
    Abstract: Apparatus and methods implementing transmission schemes that can flexibly achieve the desired spatial multiplexing order, spatial diversity order, and channel estimation overhead order are provided. For example, an apparatus is provided that includes a processor configured to allocate different subcarriers to different antennas at different times. A memory is coupled to the processor. The processor can be further configured to map a traffic channel to a specific sequence of the different subcarriers at the different times. The processor can also be further configured to transmit the traffic channel on only one of the different subcarriers at each time in the different times. The processor can be integrated with at least one of a base station and a terminal.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: May 23, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Tamer Kadous, Aamod Khandekar, Dhananjay Ashok Gore, Alexei Gorokhov
  • Patent number: 9648596
    Abstract: Techniques for mitigating interference on control channels in a wireless communication network are described. In an aspect, high interference on radio resources used for a control channel may be mitigated by sending a request to reduce interference to one or more interfering stations. Each interfering station may reduce its transmit power on the radio resources, which may then allow the control channel to observe less interference. In one design, a user equipment (UE) may detect high interference on radio resources used for a control channel by a desired base station. The UE may send a request to reduce interference on the radio resources to an interfering base station, which may reduce its transmit power on the radio resources. The UE may receive the control channel on the radio resources from the desired base station and may observe less interference from the interfering base station.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: May 9, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Ravi Palanki, Aamod Khandekar, Naga Bhushan, Avneesh Agrawal
  • Patent number: 9603062
    Abstract: Systems and methodologies are described that facilitate grouping pilot identifies to indicate type and/or classification information regarding one or more access points. The access points can select or be assigned pilot identifiers from the group indicating a type or classification related to the access points. Thus, identifiers can be grouped into macrocell and/or femtocell groups or ranges such that an access point can indicate, and mobile devices can efficiently determine, whether the access point provides macrocell or femtocell coverage based on a range from which its pilot identifier is selected or assigned. In addition, the pilot identifiers can be utilized to indicate restricted association information regarding the access points.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: March 21, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Gavin B. Horn, Fatih Ulupinar, Parag A. Agashe, Rajat Prakash, Aamod Khandekar, Alexei Gorokhov, Naga Bhushan
  • Patent number: 9549367
    Abstract: Systems and methodologies are described that facilitate transmitting access point types and/or restricted association parameters using broadcast signals, such as beacons, pilot signals, etc. The type or restricted association information can be indicated by one or more intrinsic aspects of the signal, such as specified parameters. In addition, the type or information can be indicated by one or more extrinsic signal aspects, such as frequency, interval, periodicity, etc. Using this information, a mobile device can determine whether an access point implements restricted association. If so, the mobile device can request an access point or related group identifier before determining whether to establish connection therewith. The identifier can be verified against a list of accessible access points and/or groups to make the determination.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: January 17, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Gavin B. Horn, Fatih Ulupinar, Parag A. Agashe, Rajat Prakash, Aamod Khandekar, Alexei Gorokhov, Naga Bhushan
  • Publication number: 20160285585
    Abstract: Techniques for using multiple modulation schemes for a single packet are described. Each data packet is processed and transmitted in up to T blocks, where T>1. Multiple modulation schemes are used for the T blocks to achieve good performance. A transmitter encodes a data packet to generate code bits. The transmitter then forms a block of code bits with the code bits generated for the packet, determines the modulation scheme to use for the block (e.g., based on a mode/rate selected for the packet), maps the code bits for the block based on the modulation scheme to obtain data symbols, and processes and transmits the block of data symbols to a receiver. The transmitter generates and transmits another block in similar manner until the data packet is decoded correctly or all T blocks have been transmitted. The receiver performs the complementary processing to receive and decode the packet.
    Type: Application
    Filed: June 3, 2016
    Publication date: September 29, 2016
    Inventors: Aamod Khandekar, Avneesh Agrawal