Patents by Inventor Nitin Kasturi
Nitin Kasturi 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).
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Publication number: 20160261375Abstract: A method, an apparatus, and a computer program product for data communication are provided. The method may include providing a frame of encoded data, generating a synchronization symbol to precede the encoded data when the frame is transmitted over a communication link, the synchronization symbol providing an identification of a type of the frame in accordance with an encoding scheme. The synchronization symbol may be encoded using a redundant coding scheme to support error correction for the identification of the type of frame. The frame may have a predefined fixed length.Type: ApplicationFiled: December 8, 2015Publication date: September 8, 2016Inventors: Wolfgang Roethig, Vidyut Naware, Nitin Kasturi
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Patent number: 9408094Abstract: Disclosed are an apparatus and method for assessing decode reliability of voice, data and control channel transmissions. In an aspect, the apparatus and method are configured to receive one or more radio frames or parts of a frame on a downlink channel; demodulate the received one or more frames or parts of the frame; decode the demodulated one or more frames or parts of the frame; compute one or more demodulator-based metrics and one or more decoder-based metrics; combine the one or more demodulator-based metrics and the one or more decoder-based metrics using a reliability function that assesses reliability of the decoded one or more frames or parts of the frame; and accept or reject the decoded one or more frames or parts of the frame based on the assessment of the reliability of the decoded frames or parts of the frame.Type: GrantFiled: March 13, 2013Date of Patent: August 2, 2016Assignee: QUALCOMM IncorporatedInventors: Prashant Udupa Sripathi, Nate Chizgi, Christopher Cooper Riddle, Nitin Kasturi, Atul Arvind Salvekar
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Patent number: 9344901Abstract: Methods and apparatus for processing data received at a user equipment comprises determining a protocol data unit (PDU)-specific Layer 1 decoding metric of a Layer 1 decoded PDU. The methods and apparatus further comprises determining whether to perform a Layer 2 decoding of the Layer 1 decoded PDU based on the PDU-specific Layer 1 decoding metric.Type: GrantFiled: January 27, 2014Date of Patent: May 17, 2016Assignee: QUALCOMM IncorporatedInventors: Sitaramanjaneyulu Kanamarlapudi, Prashant Udupa Sripathi, Jeremy M. Stein, Nitin Kasturi, Je Woo Kim, Messay Amerga, Sagar B. Shah, Venkata Srihari Inampudi, Ravi Gopalan
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Patent number: 9167537Abstract: Disclosed are methods and apparatus for rejecting unreliable downlink (DL) transmit power control (TPC) commands in windup mode. In one aspect, the method includes receiving by a user equipment (UE) a plurality of DLTPC commands from a base station, analyzing on one or more transmitted uplink (UL) TPC commands, detecting a windup mode based on the one or more DLTPC and ULTPC commands, and rejecting one or more DLTPC down commands in the windup mode.Type: GrantFiled: February 8, 2013Date of Patent: October 20, 2015Assignee: QUALCOMM IncorporatedInventors: Wei Zhang, Ravi Gopalan, Sharif Ahsanul Matin, Ning He, Prashant Udupa Sripathi, Nitin Kasturi, Messay Amerga, Mohammad J. Al-Saleh, Krishna Chaitanya Mukkera, Vijay Marwah
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Patent number: 9148852Abstract: Techniques for controlling receive diversity on a wireless device are disclosed. In one aspect, one or more thresholds are determined based on one or more parameters. One or more other parameters are compared against the one or more thresholds to determine whether to enable or disable receive diversity. For example, a wireless device may determine a threshold value based on a first parameter related to communication of the wireless device. The wireless device may decide to enable or disable receive diversity based on a second parameter and the threshold value. The wireless device may receive data transmission with receive diversity when a decision is made to enable receive diversity. The first parameter may relate to characteristics of data being received by the wireless device and may be represented by percentage downlink utilization. The second parameter may relate to channel conditions and may be represented by an improvement in received signal quality with receive diversity enabled.Type: GrantFiled: March 12, 2013Date of Patent: September 29, 2015Assignee: QUALCOMM INCORPORATEDInventors: Arvind Swaminathan, Nitin Kasturi
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Patent number: 9055537Abstract: Disclosed are methods and apparatus for rejecting unreliable downlink (DL) transmit power control (TPC) commands based on signal-to-interference-ratio estimates (SIRE). The method includes receiving by a user equipment (UE) a DL transmit power control (TPC) command from a base station; calculating a signal-to-interference ratio estimate (SIRE) for the DL channel; determining a scaling factor for a DLTPC rejection threshold based on the DL channel SIRE; adjusting the DLTPC rejection threshold based on the determined scaling factor; and rejecting or accepting the DLTPC command based on the adjusted DLTPC rejection threshold.Type: GrantFiled: February 8, 2013Date of Patent: June 9, 2015Assignee: QUALCOMM IncorporatedInventors: Wei Zhang, Ning He, Sharif Ahsanul Matin, Mohammad J Al-Saleh, Nitin Kasturi, Prashant Udupa Sripathi, Messay Amerga, Krishna Chaitanya Mukkera, Iyab I Sakhnini, Ravi Gopalan
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Publication number: 20150071081Abstract: Aspects of the disclosure provide techniques for improving uplink transmit power control at a user equipment (UE). When the UE is communicating with multiple cells using Multi-flow High-Speed Downlink Packet Access (MF-HSDPA), the UE may control its uplink power based on an improved MF-HSDPA uplink power control algorithm, which is different from an or-of-downs (OOD) transmit power control. In handover, a UE may determine its transmit power to be less than a transmit power requested by a high-speed cell and more than an OOD transmit power.Type: ApplicationFiled: April 2, 2014Publication date: March 12, 2015Applicant: QUALCOMM IncorporatedInventors: Abhinav Gupta, Nate Chizgi, Sitaramanjaneyulu Kanamarlapudi, Chih-Ping Hsu, Nitin Kasturi
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Patent number: 8879514Abstract: Apparatus and methods for wireless communication that includes measuring energy on a first path metric and second path metric, comparing the energy on the first path metric and second path metric to a predetermined threshold and determining if Dedicated Control Channel (DCCH) energy is present.Type: GrantFiled: September 14, 2012Date of Patent: November 4, 2014Assignee: QUALCOMM IncorporatedInventors: Sharad Deepak Sambhwani, Sony J. Akkarakaran, Nitin Kasturi, Shashank V. Maiya, Wei Zhang, Prashant Udupa Sripathi
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Patent number: 8873515Abstract: Dynamically control of receive diversity switching in a user equipment (UE) is disclosed. By dynamically controlling the switching between enabling and disabling the receive diversity, power consumption in UEs, such as smart phones and other mobile devices may be reduced. Control is based, at least in part, on measurements for data activity performed by the UE. When the UE finds measurements that would suggest data activity, the UE will switch to enable a receive diversity state when conditions are available for the switch. Similarly, when the UE finds measurements that would suggest data inactivity, the UE will switch to disable the receive diversity state when conditions are available for the switch.Type: GrantFiled: April 4, 2012Date of Patent: October 28, 2014Assignee: QUALCOMM IncorporatedInventors: Nitin Kasturi, Vidyut M. Naware, Ketan N. Patel
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Publication number: 20140307563Abstract: Methods and apparatus for processing data received at a user equipment comprises determining a protocol data unit (PDU)-specific Layer 1 decoding metric of a Layer 1 decoded PDU. The methods and apparatus further comprises determining whether to perform a Layer 2 decoding of the Layer 1 decoded PDU based on the PDU-specific Layer 1 decoding metric.Type: ApplicationFiled: January 27, 2014Publication date: October 16, 2014Applicant: QUALCOMM IncorporatedInventors: Sitaramanjaneyulu KANAMARLAPUDI, Prashant UDUPA SRIPATHI, Jeremy M. STEIN, Nitin KASTURI, Je Woo KIM, Messay AMERGA, Sagar B. SHAH, Venkata Srihari INAMPUDI, Ravi GOPALAN
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Publication number: 20140273866Abstract: Techniques for controlling receive diversity on a wireless device are disclosed. In one aspect, one or more thresholds are determined based on one or more parameters. One or more other parameters are compared against the one or more thresholds to determine whether to enable or disable receive diversity. For example, a wireless device may determine a threshold value based on a first parameter related to communication of the wireless device. The wireless device may decide to enable or disable receive diversity based on a second parameter and the threshold value. The wireless device may receive data transmission with receive diversity when a decision is made to enable receive diversity. The first parameter may relate to characteristics of data being received by the wireless device and may be represented by percentage downlink utilization. The second parameter may relate to channel conditions and may be represented by an improvement in received signal quality with receive diversity enabled.Type: ApplicationFiled: March 12, 2013Publication date: September 18, 2014Applicant: QUALCOMM IncorporatedInventors: Arvind Swaminathan, Nitin Kasturi
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Patent number: 8744383Abstract: Methods and apparatus for active and passive dynamic electromagnetic radiation emission control in wireless devices by limiting transmit power in individual devices is disclosed. In various embodiments, electromagnetic radiation emissions from wireless devices are dynamically controlled using variable transmit power limits acquired through the use of RF ID/NFC tags that indicate transmit power limits, where such power limiting tags are embedded in clothing, furniture, etc., communication of transmit power limits over Bluetooth or other short range technologies, location-based transmit power limits, user input transmit power limits. Controlling the transmit power of mobiles as well as femtocells/access points for the purpose of minimizing SAR using variable transmit power limits is detailed.Type: GrantFiled: April 6, 2011Date of Patent: June 3, 2014Assignee: QUALCOMM IncorporatedInventors: Parvathanathan Subrahmanya, Nitin Kasturi
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Publication number: 20140078909Abstract: Apparatus and methods for wireless communication that includes measuring energy on a first path metric and second path metric, comparing the energy on the first path metric and second path metric to a predetermined threshold and determining if Dedicated Control Channel (DCCH) energy is present.Type: ApplicationFiled: September 14, 2012Publication date: March 20, 2014Applicant: QUALCOMM IncorporatedInventors: Sharad Deepak Sambhwani, Sony J. Akkarakaran, Nitin Kasturi, Shashank V. Maiya, Wei Zhang, Prashant Udupa Sripathi
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Publication number: 20140078917Abstract: Disclosed are an apparatus and method for assessing decode reliability of voice, data and control channel transmissions. In an aspect, the apparatus and method are configured to receive one or more radio frames or parts of a frame on a downlink channel; demodulate the received one or more frames or parts of the frame; decode the demodulated one or more frames or parts of the frame; compute one or more demodulator-based metrics and one or more decoder-based metrics; combine the one or more demodulator-based metrics and the one or more decoder-based metrics using a reliability function that assesses reliability of the decoded one or more frames or parts of the frame; and accept or reject the decoded one or more frames or parts of the frame based on the assessment of the reliability of the decoded frames or parts of the frame.Type: ApplicationFiled: March 13, 2013Publication date: March 20, 2014Applicant: QUALCOMM IncorporatedInventors: Prashant UDUPA SRIPATHI, Nate Chizgi, Christopher Cooper Riddle, Nitin Kasturi, Atul Arvind Salvekar
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Publication number: 20130324179Abstract: Disclosed are methods and apparatus for rejecting unreliable downlink (DL) transmit power control (TPC) commands based on signal-to-interference-ratio estimates (SIRE). The method includes receiving by a user equipment (UE) a DL transmit power control (TPC) command from a base station; calculating a signal-to-interference ratio estimate (SIRE) for the DL channel; determining a scaling factor for a DLTPC rejection threshold based on the DL channel SIRE; adjusting the DLTPC rejection threshold based on the determined scaling factor; and rejecting or accepting the DLTPC command based on the adjusted DLTPC rejection threshold.Type: ApplicationFiled: February 8, 2013Publication date: December 5, 2013Applicant: QUALCOMM IncorporatedInventors: Wei ZHANG, Ning HE, Sharif Ahsanul MATIN, Mohammad J. AL-SALEH, Nitin KASTURI, Prashant UDUPA SRIPATHI, Messay AMERGA, Krishna Chitanya MUKKERA, Iyab I. SAKHNINI, Ravi GOPALAN
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Publication number: 20130324180Abstract: Disclosed are methods and apparatus for rejecting unreliable downlink (DL) transmit power control (TPC) commands in windup mode. In one aspect, the method includes receiving by a user equipment (UE) a plurality of DLTPC commands from a base station, analyzing on one or more transmitted uplink (UL) TPC commands, detecting a windup mode based on the one or more DLTPC and ULTPC commands, and rejecting one or more DLTPC down commands in the windup mode.Type: ApplicationFiled: February 8, 2013Publication date: December 5, 2013Applicant: QUALCOMM IncorporatedInventors: Wei ZHANG, Ravi GOPALAN, Sharif Ahsanul MATIN, Ning HE, Prashant UDUPA SRIPATHI, Nitin KASTURI, Messay AMERGA, Mohammad J. AL-SALEH, Krishna Chaitanya MUKKERA, Vijay MARWAH
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Patent number: 8576965Abstract: Certain embodiments of the present disclosure support techniques for interference cancellation in a multi-mode wireless modem that supports coexistence of different radio technologies.Type: GrantFiled: July 7, 2010Date of Patent: November 5, 2013Assignee: QUALCOMM IncorporatedInventors: Madihally J. Narasimha, Je Woo Kim, Nitin Kasturi, Parvathanathan Subrahmanya
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Patent number: 8521113Abstract: Disclosed are methods and apparatus for predicting a channel quality indicator in a communication system, and in particular a delayed receiver. A disclosed method for determining the predictive channel quality indicator for a delayed receiver includes determining at least one channel quality indicator from a non-delayed receiver. The method also includes determining another channel quality indicator from the delayed receiver, and then calculating the predictive channel quality indicator for the delayed receiver through a function of the channel quality indicators from the non-delayed receiver and the channel quality indicator from the delayed receiver. Corresponding apparatus are also disclosed.Type: GrantFiled: April 25, 2008Date of Patent: August 27, 2013Assignee: Qualcomm IncorporatedInventors: Gokhan Mergen, Manini S. Shah, Nathaniel Lev Grossman, Nitin Kasturi, Yan Li
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Patent number: 8406359Abstract: Techniques for filtering noisy estimates to reduce estimation errors are described. A sequence of input values (e.g., for an initial channel impulse response estimate (CIRE)) is filtered with an infinite impulse response (IIR) filter having at least one coefficient to obtain a sequence of output values (e.g., for a filtered CIRE). The coefficient(s) are updated based on the sequence of input values with an adaptive filter, a bank of prediction filters, or a normalized variation technique. To update the coefficient(s) with the adaptive filter, a sequence of predicted values is derived based on the sequence of input values. Prediction errors between the sequence of predicted values and the sequence of input values are determined and filtered to obtain filtered prediction errors. The coefficient(s) of the IIR filter are then updated based on the prediction errors and the filtered prediction errors.Type: GrantFiled: February 25, 2010Date of Patent: March 26, 2013Assignee: Qualcomm IncorporatedInventors: Gokhan Mergen, Parvathanathan Subrahmanya, Vijayaraj Alilaghatta-Kantharaj, Nitin Kasturi
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Patent number: 8359060Abstract: An apparatus, system, and method efficiently manage transmission power in a user equipment (UE) device by maintaining and applying an authorized power level to determine a transmission power level after a power limited transmission and before a new power control command has been received. The UE device maintains the authorized power level by monitoring and adjusting the authorized power level based on received power control commands. After a power limited transmission where the maximum power level is less than the authorized power level, the UE device determines the transmission power level for the next transmission based on the authorized power level. Accordingly, after the power limiting situation has ceased, the UE device transmits at the optimum power level eliminating the inefficiencies of transmitting at a lower than authorized power before the next power control command is received.Type: GrantFiled: February 28, 2011Date of Patent: January 22, 2013Assignee: QUALCOMM IncorporatedInventors: Erumusele O. Odigie, Nitin Kasturi, Parvathanathan Subrahmanya