Patents by Inventor Shyamal Ramachandran
Shyamal Ramachandran 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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Patent number: 11516709Abstract: This disclosure provides systems, methods, apparatuses and computer-readable medium for wireless communication. In some aspects, a user equipment (UE) may receive, from a first base station (BS) associated with a fifth generation New Radio (5G NR) radio access technology (RAT), a command of mobility from the 5G NR RAT to a second RAT. The UE may determine that the command of mobility is for voice fallback. The UE may transmit, to a second BS associated with the second RAT and based at least in part on determining that the command of mobility is for voice fallback, a radio resource control (RRC) connection request communication for attempting to communicatively connect with the second BS for voice fallback.Type: GrantFiled: August 12, 2020Date of Patent: November 29, 2022Assignee: QUALCOMM IncorporatedInventors: Xipeng Zhu, Masato Kitazoe, Gavin Bernard Horn, Shyamal Ramachandran, Arvind Vardarajan Santhanam, Tom Chin, Min Wang, Kuo-Chun Lee
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Patent number: 11477708Abstract: Methods, systems, and devices for wireless communications are described that provide for a user equipment (UE) to report packet switched voice call capabilities to a base station. The UE may explicitly report voice call capabilities via one or more system-level parameters that are transmitted to the base station. The base station may operate in a first radio access network (RAN), such as a 5G or new radio (NR) RAN. In cases where the UE indicates a capability for packet switched voice calls via the first RAN, one or more voice calls may be established with the UE via the first RAN. In cases where the UE indicates that it is not capable of packet switched voice calls via the first RAN, the UE may fall back to a different RAN (e.g., a 4G or LTE RAN, a 3G RAN, or a 2G RAN) for voice calls.Type: GrantFiled: June 19, 2019Date of Patent: October 18, 2022Assignee: QUALCOMM IncorporatedInventors: Xipeng Zhu, Masato Kitazoe, Tom Chin, Gavin Bernard Horn, Haris Zisimopoulos, Shyamal Ramachandran, Min Wang, Aziz Gholmieh, Ajith Payyappilly, Luis Fernando Brisson Lopes
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Publication number: 20220104229Abstract: A wireless communication device is described. The wireless communication device includes a modem. The modem is configured to determine a link latency. The modem is configured to determine the link latency based on a network configuration. The modem is also configured to send the link latency. The modem is configured to send the link latency to a processor.Type: ApplicationFiled: September 30, 2020Publication date: March 31, 2022Inventors: Leena Zacharias, Arnaud Meylan, Shyamal Ramachandran
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Patent number: 11166202Abstract: This disclosure provides systems, methods, apparatuses and computer-readable medium for wireless communication. In some aspects, a user equipment (UE) may receive, from a first base station (BS) associated with a fifth generation New Radio (5G NR) radio access technology (RAT), a command of mobility from the 5G NR RAT to a second RAT. The UE may determine that the command of mobility is for voice fallback. The UE may transmit, to a second BS associated with the second RAT and based at least in part on determining that the command of mobility is for voice fallback, a radio resource control (RRC) connection request communication for attempting to communicatively connect with the second BS for voice fallback.Type: GrantFiled: January 8, 2021Date of Patent: November 2, 2021Assignee: QUALCOMM IncorporatedInventors: Xipeng Zhu, Masato Kitazoe, Gavin Bernard Horn, Shyamal Ramachandran, Arvind Vardarajan Santhanam, Tom Chin, Min Wang, Kuo-Chun Lee
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Patent number: 11122480Abstract: A method and apparatus for selecting an access point (AP) for providing a service at a user equipment (UE). The example method may identify, by a user equipment (UE), a first AP available for communication. The example method may determine, by the UE, whether the first AP is suitable based, at least in part, on an indication for the first AP in an AP history table stored in a memory of the UE, wherein the indication is based on UE-determined metrics determined during one or more prior communications between the UE and the first AP. The example method may also include establishing communication between the UE and the first AP, in response to determining that the first AP is suitable.Type: GrantFiled: April 24, 2018Date of Patent: September 14, 2021Assignee: QUALCOMM IncorporatedInventors: Kirankumar Bhoja Anchan, Srinivasan Balasubramanian, Shyamal Ramachandran, Chinmay Dhodapkar, Devrath Chatterjee
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Publication number: 20210136636Abstract: This disclosure provides systems, methods, apparatuses and computer-readable medium for wireless communication. In some aspects, a user equipment (UE) may receive, from a first base station (BS) associated with a fifth generation New Radio (5G NR) radio access technology (RAT), a command of mobility from the 5G NR RAT to a second RAT. The UE may determine that the command of mobility is for voice fallback. The UE may transmit, to a second BS associated with the second RAT and based at least in part on determining that the command of mobility is for voice fallback, a radio resource control (RRC) connection request communication for attempting to communicatively connect with the second BS for voice fallback.Type: ApplicationFiled: January 8, 2021Publication date: May 6, 2021Inventors: Xipeng ZHU, Masato KITAZOE, Gavin Bernard HORN, Shyamal RAMACHANDRAN, Arvind Vardarajan SANTHANAM, Tom CHIN, Min WANG, Kuo-Chun LEE
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Patent number: 10893444Abstract: This disclosure provides systems, methods, apparatuses and computer-readable medium for wireless communication. In some aspects, a user equipment (UE) may receive, from a first base station (BS) associated with a fifth generation New Radio (5G NR) radio access technology (RAT), a command of mobility from the 5G NR RAT to a second RAT. The UE may determine that the command of mobility is for voice fallback. The UE may transmit, to a second BS associated with the second RAT and based at least in part on determining that the command of mobility is for voice fallback, a radio resource control (RRC) connection request communication for attempting to communicatively connect with the second BS for voice fallback.Type: GrantFiled: January 8, 2020Date of Patent: January 12, 2021Assignee: QUALCOMM IncorporatedInventors: Xipeng Zhu, Masato Kitazoe, Gavin Bernard Horn, Shyamal Ramachandran, Arvind Vardarajan Santhanam, Tom Chin, Min Wang, Kuo-Chun Lee
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Publication number: 20200374761Abstract: This disclosure provides systems, methods, apparatuses and computer-readable medium for wireless communication. In some aspects, a user equipment (UE) may receive, from a first base station (BS) associated with a fifth generation New Radio (5G NR) radio access technology (RAT), a command of mobility from the 5G NR RAT to a second RAT. The UE may determine that the command of mobility is for voice fallback. The UE may transmit, to a second BS associated with the second RAT and based at least in part on determining that the command of mobility is for voice fallback, a radio resource control (RRC) connection request communication for attempting to communicatively connect with the second BS for voice fallback.Type: ApplicationFiled: August 12, 2020Publication date: November 26, 2020Inventors: Xipeng ZHU, Masato KITAZOE, Gavin Bernard HORN, Shyamal RAMACHANDRAN, Arvind Vardarajan SANTHANAM, Tom CHIN, Min WANG, Kuo-Chun LEE
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Patent number: 10750381Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may set a value associated with a delay budget report information element based at least in part on determining that the UE is to employ low latency communication with or via a base station. The UE may transmit a message, that includes the value associated with the delay budget report information element, to the base station to indicate that low latency communication is to be employed in association with a default bearer established between the UE and the base station. Numerous other aspects are provided.Type: GrantFiled: January 14, 2019Date of Patent: August 18, 2020Assignee: Qualcomm IncorporatedInventors: Arnaud Meylan, Shyamal Ramachandran, Neha Goel
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Publication number: 20200245195Abstract: This disclosure provides systems, methods, apparatuses and computer-readable medium for wireless communication. In some aspects, a user equipment (UE) may receive, from a first base station (BS) associated with a fifth generation New Radio (5G NR) radio access technology (RAT), a command of mobility from the 5G NR RAT to a second RAT. The UE may determine that the command of mobility is for voice fallback. The UE may transmit, to a second BS associated with the second RAT and based at least in part on determining that the command of mobility is for voice fallback, a radio resource control (RRC) connection request communication for attempting to communicatively connect with the second BS for voice fallback.Type: ApplicationFiled: January 8, 2020Publication date: July 30, 2020Inventors: Xipeng ZHU, Masato KITAZOE, Gavin Bernard HORN, Shyamal RAMACHANDRAN, Arvind Vardarajan SANTHANAM, Tom CHIN, Min WANG, Kuo-Chun LEE
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Patent number: 10728870Abstract: Methods and apparatus are provided for avoiding attempts by a UE to attach to a RAT network when that RAT network is unavailable. According to certain aspects, the UE may detect scenarios when the RAT network is unavailable and take preemptive action to prevent the UE from attempting to acquire service on that RAT. For example, the UE may effectively remove that RAT from a list of supported RATs by sending a UE capability message indicating that RAT is not supported, which may prevent network-initiated transitions of the UE to that RAT. The UE may also remove the unavailable RAT from an internal list of supported RATs, which may prevent UE-initiated transitions to that RAT.Type: GrantFiled: October 7, 2013Date of Patent: July 28, 2020Assignee: QUALCOMM IncorporatedInventors: Abhishek Bhatnagar, Shyamal Ramachandran, Vitaly Drapkin, Vamsi Krishna Dokku, Hariharan Sukumar, Zhong Ren, Vidula Rajeev Kurundkar
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Patent number: 10616123Abstract: In a particular aspect, an apparatus includes a de-jitter buffer configured to store a plurality of audio packets received from a source device. The apparatus includes de-jitter buffer control circuitry configured to adjust at least one bound of a target delay range associated with the de-jitter buffer based at least in part on an estimated jitter associated with the plurality of audio packets, an estimated underflow rate associated with the plurality of audio packets, or both. The apparatus includes a processor configured to generate an audio signal based on the plurality of audio packets stored at the de-jitter buffer. The apparatus includes a receiver configured to receive the plurality of audio packets via a network from the source device. The apparatus further includes a speaker configured to output the audio signal.Type: GrantFiled: July 7, 2017Date of Patent: April 7, 2020Assignee: QUALCOMM IncorporatedInventors: Min Wang, Shyamal Ramachandran
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Publication number: 20190394688Abstract: Methods, systems, and devices for wireless communications are described that provide for a user equipment (UE) to report packet switched voice call capabilities to a base station. The UE may explicitly report voice call capabilities via one or more system-level parameters that are transmitted to the base station. The base station may operate in a first radio access network (RAN), such as a 5G or new radio (NR) RAN. In cases where the UE indicates a capability for packet switched voice calls via the first RAN, one or more voice calls may be established with the UE via the first RAN. In cases where the UE indicates that it is not capable of packet switched voice calls via the first RAN, the UE may fall back to a different RAN (e.g., a 4G or LTE RAN, a 3G RAN, or a 2G RAN) for voice calls.Type: ApplicationFiled: June 19, 2019Publication date: December 26, 2019Inventors: Xipeng Zhu, Masato Kitazoe, Tom Chin, Gavin Bernard Horn, Haris Zisimopoulos, Shyamal Ramachandran, Min Wang, Aziz Gholmieh, Ajith Payyappilly, Luis Fernando Brisson Lopes
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Publication number: 20190371345Abstract: A method of smart coding mode switching includes receiving a first data including a primary copy and a partial copy. The method includes determining if switching a coding mode from channel aware mode to non-channel aware mode may be advantageous. The method further includes transmitting a request to another device for coding mode switch in response to determination result. The method includes receiving and decoding of a second data that includes a primary copy.Type: ApplicationFiled: June 4, 2018Publication date: December 5, 2019Inventors: Sarandeep BHATIA, Tony LEE, Shyamal RAMACHANDRAN, Bikash KARMAKAR, Abhijeet PRASAD
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Patent number: 10475456Abstract: A method of smart coding mode switching includes receiving a first data including a primary copy and a partial copy. The method includes determining if switching a coding mode from channel aware mode to non-channel aware mode may be advantageous. The method further includes transmitting a request to another device for coding mode switch in response to determination result. The method includes receiving and decoding of a second data that includes a primary copy.Type: GrantFiled: June 4, 2018Date of Patent: November 12, 2019Assignee: Qualcomm IncorporatedInventors: Sarandeep Bhatia, Tony Lee, Shyamal Ramachandran, Bikash Karmakar, Abhijeet Prasad
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Publication number: 20190239097Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may set a value associated with a delay budget report information element based at least in part on determining that the UE is to employ low latency communication with or via a base station. The UE may transmit a message, that includes the value associated with the delay budget report information element, to the base station to indicate that low latency communication is to be employed in association with a default bearer established between the UE and the base station. Numerous other aspects are provided.Type: ApplicationFiled: January 14, 2019Publication date: August 1, 2019Inventors: Arnaud MEYLAN, Shyamal RAMACHANDRAN, Neha GOEL
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Publication number: 20190014050Abstract: In a particular aspect, an apparatus includes a de jitter buffer configured to store a plurality of audio packets received from a source device. The apparatus includes de-jitter buffer control circuitry configured to adjust at least one bound of a target delay range associated with the de-jitter buffer based at least in part on an estimated jitter associated with the plurality of audio packets, an estimated underflow rate associated with the plurality of audio packets, or both. The apparatus includes a processor configured to generate an audio signal based on the plurality of audio packets stored at the de jitter buffer. The apparatus includes a receiver configured to receive the plurality of audio packets via a network from the source device. The apparatus further includes a speaker configured to output the audio signal.Type: ApplicationFiled: July 7, 2017Publication date: January 10, 2019Inventors: Min WANG, Shyamal RAMACHANDRAN
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Publication number: 20180352489Abstract: A method and apparatus for selecting an access point (AP) for providing a service at a user equipment (UE). The example method may identify, by a user equipment (UE), a first AP available for communication. The example method may determine, by the UE, whether the first AP is suitable based, at least in part, on an indication for the first AP in an AP history table stored in a memory of the UE, wherein the indication is based on UE-determined metrics determined during one or more prior communications between the UE and the first AP. The example method may also include establishing communication between the UE and the first AP, in response to determining that the first AP is suitable.Type: ApplicationFiled: April 24, 2018Publication date: December 6, 2018Inventors: Kirankumar Bhoja ANCHAN, Srinivasan BALASUBRAMANIAN, Shyamal RAMACHANDRAN, Chinmay DHODAPKAR, Devrath CHATTERJEE
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Patent number: 9924402Abstract: Systems and methodologies are described herein that facilitate efficient transfer of quality of service (QoS) context during inter-radio access technology (RAT) handovers. In particular, techniques are described herein for establishing rules for whether a user equipment unit (UE) or an associated network should establish QoS for a mixed-mode application, identifying flow to bearer mappings when translating QoS across an inter-RAT handover, mapping QoS parameters of respective RATs, mitigating QoS depreciation upon multiple handovers, performing one or more actions if QoS is not acceptable in a new RAT, maintaining QoS during tunnel mode, and handling scenarios in which a UE moves between a RAT using network-initiated QoS and a RAT using UE-initiated QoS.Type: GrantFiled: September 15, 2014Date of Patent: March 20, 2018Assignee: QUALCOMM IncorporatedInventors: Thomas Klingenbrunn, Uppinder Singh Babbar, Srinivasan Balasubramanian, Shyamal Ramachandran, Arvind Swaminathan
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Patent number: 9883477Abstract: An access terminal pre-registers with a second access network via a first access network to ensure a quick handover in the future. Frequent pre-registration attempts are avoided by implementing a hysteresis timer that restricts when a pre-registration process can be initiated. The hysteresis timer is started when pre-registration is initiated by the access terminal. No new pre-registration attempts are permitted if the hysteresis timer has not expired. An abort condition can cause the hysteresis timer to be aborted early, and a new pre-registration can be initiated. Access points in the first access network may be grouped into one or more pre-registration zones. If the access terminal moves from a first access point to a second access point, a new pre-registration is skipped if the first and second access points have the same pre-registration zone or the second access point is aware of the pre-registration zone for the first access point.Type: GrantFiled: June 22, 2015Date of Patent: January 30, 2018Assignee: QUALCOMM IncorporatedInventors: Shyamal Ramachandran, Thomas Klingenbrunn, Srinivasan Balasubramanian, Arvind Swaminathan