Patents by Inventor Divaydeep Sikri

Divaydeep Sikri 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: 20160095087
    Abstract: Methods and devices are disclosed for enabling improved performance on a single-transmit multi-SIM wireless communication device. The wireless communication device may detect a voice communication on a modem stack associated with the first SIM and a data communication on a modem stack associated with the second SIM. The wireless communication device may identify a data rate used by the voice codec to encode uplink traffic channel (TCH) bursts in the voice communication, and determine whether the identified data rate used by the voice codec permits TCH burst cancellation. If it is determined that the identified data rate used by the voice codec permits TCH burst cancellation, the wireless communication device may downgrade a portion of the uplink TCH bursts scheduled on the modem stack associated with the first SIM.
    Type: Application
    Filed: November 12, 2014
    Publication date: March 31, 2016
    Inventors: Jafar Mohseni, Neha Goel, Mungal Singh Dhanda, Divaydeep Sikri
  • Publication number: 20160095015
    Abstract: Devices and methods are configured for resolving control channel transmission collision in a mobile device having first and second subscriptions (SUBs) when the first SUB is in an active voice call and the second SUB is in a held voice call. The devices and methods involve determining whether a control channel transmission of the first SUB would collide with a control channel transmission of the second SUB. In response to determining that the first SUB control channel transmission would collide with the second SUB control channel transmission, the devices and methods alternate the first SUB control channel transmission and the second SUB control channel transmission to avoid collision.
    Type: Application
    Filed: September 29, 2014
    Publication date: March 31, 2016
    Applicant: QUALCOMM INCORPORATED
    Inventors: Jafar Mohseni, Neha Goel, Divaydeep Sikri, Mungal Singh Dhanda
  • Publication number: 20160095010
    Abstract: A method for scheduling monitor activity for a mobile communication device includes: receiving less than all of a plurality of bursts for a first subscription; decoding a packet header by decoding the received bursts; determining if a decoded temporary flow identity (TFI) matches a TFI for the mobile communication device; and in response to a mismatch between the decoded TFI and the TFI for the mobile communication device: inhibiting reception of a remaining plurality of bursts; and scheduling the monitor activity in timeslots reserved for the remaining plurality of bursts for the first subscription that do not conflict with transmissions on a second subscription.
    Type: Application
    Filed: November 18, 2014
    Publication date: March 31, 2016
    Inventors: Mungal Dhanda, Neha Goel, Divaydeep Sikri
  • Publication number: 20160093306
    Abstract: A method includes: receiving a first speech frame; identifying a first codec mode based at least in part on a Codec Mode Command (CMC) comprising the first speech frame; identifying a second codec mode based at least in part on a downlink (DL) Codec Mode Indication (DCMI) comprising the first speech frame; determining, based at least in part on a current uplink (UL) codec mode, to apply one of the first codec mode, the second codec mode, and a third codec mode having a higher bit rate than the first codec mode; and applying one of the first codec mode, the second codec mode, and the third codec mode.
    Type: Application
    Filed: November 6, 2014
    Publication date: March 31, 2016
    Inventors: Divaydeep Sikri, Neha Goel, Jafar Mohseni, Mungal Singh Dhanda
  • Patent number: 9288761
    Abstract: Embodiments of the present invention include devices, systems and methods for optimized camping on a cell. One method can include beginning a power scan of a range of radio-frequency channel numbers as part of an acquisition. Power can be measured for a first set of radio-frequency channel numbers at a time using adjacent channel interference detection. An average power can be computed for each radio-frequency channel number once the range has been scanned a predetermined number of times. Other aspects, embodiments and features are also claimed and described.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: March 15, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Divaydeep Sikri, Mukund Agarwal, Hassan Rafique, Syed Hamza Rafique
  • Patent number: 9258413
    Abstract: Methods and devices are disclosed for enabling improved transmission performance on a multi-SIM wireless communication device. The wireless device may detect a voice communication in a held state on a modem stack associated with the first SIM and an active voice communication on a modem stack associated with the second SIM. The wireless device may detect a conflict between at least one silence descriptor (SID) frame scheduled for transmission by the modem stack associated with the first SIM and a transmit opportunity for the modem stack associated with the second SIM. Once the wireless device identifies a SID frame transmission rate for the modem stack associated with the first SIM, the wireless device may apply a reduction scheme to the SID frames scheduled to be transmitted by the modem stack associated with the first SIM.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: February 9, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Divaydeep Sikri, Neha Goel, Jafar Mohseni, Mungal Singh Dhanda
  • Publication number: 20160007312
    Abstract: A dual SIM dual active (DSDA) mobile station can perform a service acquisition procedure for a first subscription, while simultaneously performing a registration procedure for a second subscription. In one aspect of the disclosure, the RX (receive) of the victim during acquisition is delayed and yields to the TX (transmit) of the aggressor that is performing registration. In accordance with another aspect of the disclosure, decode failures on good cells due to RX blanking on the victim subscription during acquisition can be reduced or avoided.
    Type: Application
    Filed: July 3, 2014
    Publication date: January 7, 2016
    Inventors: Marc Robert Cherry, Neha Goel, Divaydeep Sikri
  • Patent number: 9232425
    Abstract: Access terminals are adapted to receive and transmit data during one or more frames in a multiframe. Power measurements for a neighboring cell can be scheduled during one or more frames not intended for power measurements. In some examples, the one or more frames not intended for power measurements can include an Idle frame and/or a Packet Timing Advance Control Channel (PTCCH) frame in a 52-frame multiframe structure, as well as an Idle frame and/or a Slow Associated Control Channel (SACCH) frame in a 26-frame multiframe structure. Some access terminals may be adapted for facilitating multiple subscriptions, and may operate at least substantially simultaneously in a Connected mode subscription and an Idle mode subscription. In such instances, a neighboring cell for which power measurements are performed may be associated with the Connected mode subscription and/or the Idle mode subscription. Other aspects, embodiments, and features are also claimed and described.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: January 5, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Abeezar A. Burhan, Mungal Singh Dhanda, Kishore Kumar Yannakula, Divaydeep Sikri, Philip John Charles Children
  • Patent number: 9226213
    Abstract: A method for wireless communication is described. A slow associated control channel block is received. It is determined that the slow associated control channel block fails an integrity check. A correlation level between the slow associated control channel block and one or more stored slow associated control channel blocks is determined. The stored slow associated control channel blocks are set based on a maximum correlation level. Other aspects, embodiments, and features are also claimed and described.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: December 29, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Divaydeep Sikri, Hassan Rafique, Cetin Altan, Mungal Singh Dhanda, Zhi-Zhong Yu
  • Patent number: 9198099
    Abstract: Devices, systems, articles of manufacture, and methods scheduling subscription procedures on a wireless communication device are described. According to some embodiments, the wireless communication device communicates with a first subscription. The wireless communication device can perform a concurrent burst-level tune-away procedure with a second subscription. The wireless communication device also returns to communication with the first subscription. The tune-away procedure enables a communication device to interact with multiple subscriptions (e.g., multiple SIM-based subscriptions). Other aspects, embodiments, and features are also claimed and described.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: November 24, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Divaydeep Sikri, Abeezar A. Burhan, Mungal S. Dhanda
  • Publication number: 20150319743
    Abstract: Fast Associated Control Channel (FACCH) information is combined if a first block of FACCH information and a repeated block of FACCH information each fail a respective integrity check. An algorithm for realizing repeated FACCH diversity combining gains for different codec and discontinuous transmission (DTX) configurations is applicable to Full Rate codecs, Half Rate codecs, and discontinuous transmission scenarios. A pair of buffers may be used in a ping-pong fashion to store decoding soft or hard decisions for failed FACCH blocks.
    Type: Application
    Filed: October 27, 2014
    Publication date: November 5, 2015
    Inventors: Farrukh Rashid, Divaydeep Sikri, Mukund Agarwal, Hassan Rafique, Cetin Altan
  • Patent number: 9167446
    Abstract: Aspects of the present disclosure relate to a user equipment (UE) and a method of wireless communication using the UE that includes a first transceiver and a second transceiver. The method includes determining that the first transceiver is scheduled to communicate using a first transmission simultaneous to the second transceiver being scheduled to communicate using a second transmission, and altering an operation of at least one of the first and second transceivers to mitigate battery voltage droop due to simultaneous transmissions of the transceivers. Other aspects, embodiments, and features are also claimed and described.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: October 20, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Divaydeep Sikri, Mungal Singh Dhanda, William Stancer, Francis Ming-Meng Ngai, Simon Walke
  • Patent number: 9160577
    Abstract: Systems and methods of receiving data in a communication system are disclosed. The methods include equalizing a plurality of samples to suppress intersymbol interference and provide a first set of detected bits based on a first set of reference bits comprising a training sequence on a first iteration. The methods further include suppressing co-channel interference in the plurality of input samples and provide a set of suppressed samples based on a second set of reference bits comprising the first set of detected bits on a second iteration. The methods further include equalizing the set of suppressed samples to suppress intersymbol interference and provide a second set of detected bits based on the second set of reference bits on the second iteration.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: October 13, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Divaydeep Sikri, Farrokh Abrishamkar, Nico De Laurentiis
  • Publication number: 20150289173
    Abstract: A method for performing cell reselection by a wireless communication device is described. The method includes monitoring one or more neighbor cells of a same radio access technology as a serving cell while camped on the serving cell. The method also includes determining that reselection criteria is met for a target cell. The method further includes starting a reselection timer for the target cell. The method additionally includes determining whether to perform reselection to the target cell based on a target cell signal to noise ratio (SNR) and a serving cell SNR.
    Type: Application
    Filed: April 4, 2014
    Publication date: October 8, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Kunal Tyagi, Siddhant Mehrotra, Ravi Kanth Kotreka, Pankaj Bansal, Manjunatha Subbamma Ananda, Divaydeep Sikri, Cetin Altan, Abeezar Burhan
  • Publication number: 20150289228
    Abstract: Aspects of the disclosure relate to wireless communication in connection with one or more devices, such as a mobile station (MS). A first burst of a multi-burst page is received from a paging channel. A correlation between at least a portion of the first burst and each of a plurality of predetermined bit patterns corresponding to a non-NULL page destined for the MS is determined. If the correlation is greater than a threshold, a second burst of the page is read and early decoding of the page is performed. Other aspects, embodiments, and features are also claimed and described.
    Type: Application
    Filed: August 15, 2014
    Publication date: October 8, 2015
    Inventors: Divaydeep Sikri, Farrukh Rashid, Mungal Singh Dhanda, Mukund Agarwal
  • Patent number: 9124403
    Abstract: Systems and methods for decoding bitstreams are described. The bitstreams may be encoded using a punctured convolution code and received from a wireless network. A puncture pattern associated with a modulation and coding scheme used to encode the bitstream is determined, and punctured log-likelihood ratios (LLRs) generated from the bitstream are ignored while decoding the bitstream. The puncture pattern may be characterized by one or more algorithms that identify punctured LLRs in a repetitive sequence of LLRs. A decoder may exclude punctured LLRs from calculations related to bitstream decoding. The decoder may comprise a Viterbi decoder or an algebraic decoder. Other aspects, embodiments, and features are also claimed and described.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: September 1, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Hassan Rafique, Divaydeep Sikri, Nico De Laurentiis, Nita E. Joseph
  • Publication number: 20150245294
    Abstract: Embodiments of the present invention include devices, systems and methods for optimized camping on a cell. One method can include beginning a power scan of a range of radio-frequency channel numbers as part of an acquisition. Power can be measured for a first set of radio-frequency channel numbers at a time using adjacent channel interference detection. An average power can be computed for each radio-frequency channel number once the range has been scanned a predetermined number of times. Other aspects, embodiments and features are also claimed and described.
    Type: Application
    Filed: February 26, 2014
    Publication date: August 27, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Divaydeep Sikri, Mukund Agarwal, Hassan Rafique, Syed Hamza Rafique
  • Publication number: 20150222459
    Abstract: Apparatus and methods enable rejection of adjacent channel interference (ACI) in a way that mitigates reductions in performance, such as increased bit error rates, which might otherwise occur with conventional filtering algorithms used to combat ACI. For example, a filter or a filter stage may be shifted in frequency by an amount that corresponds to a measured power of the ACI. In some examples, the amount to shift the filter may correspond to a carrier to interference (C/I) ratio, which itself is based in part on the ACI. In some examples, the amount to shift the filter may further depend on the noise power in the wireless channel, since a lesser shift of the filter frequency may be beneficial in noisy environments.
    Type: Application
    Filed: February 4, 2014
    Publication date: August 6, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Hassan Rafique, Mukund Agarwal, Divaydeep Sikri
  • Publication number: 20150215880
    Abstract: Access terminals are adapted to determine a tone location even when the tone is asymmetric. According to one example, an access terminal can obtain a plurality of samples for a received tone. The access terminal may detect which sample of the plurality of samples exhibits a maximum correlation value. The access terminal may further determine a location of the received tone based on the sample exhibiting the maximum correlation value. In some examples, the location of the received tone may be determine based on the sample exhibiting the maximum correlation value when a predicted signal-to-noise ratio (SNR) is above a predetermined threshold. Otherwise, the access terminal may determine the tone location based on a central location between a first sample with a correlation value above a predefined threshold and a first subsequent sample with a correlation value below the predefined threshold. Other aspects, embodiments, and features are also included.
    Type: Application
    Filed: January 28, 2014
    Publication date: July 30, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Hassan Rafique, Divaydeep Sikri, Cetin Altan
  • Publication number: 20150201398
    Abstract: Embodiments of the present invention include devices, systems and methods for optimized camping on a cell. One method can include beginning a connection via a first cell. The method also includes participating in a handover to a second cell. The method further includes tuning away from a traffic channel to a broadcast control channel. A system information message is received via the broadcast control channel. The method also includes tuning back to the traffic channel to continue the connection. Other aspects, embodiments and features are also claimed and described.
    Type: Application
    Filed: January 10, 2014
    Publication date: July 16, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Mungal Singh Dhanda, Divaydeep Sikri