Patents by Inventor Luciano M. Verger
Luciano M. Verger 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: 9554346Abstract: A jitter buffer in a Voice over LTE receiver may be influenced by radio level feedback (RLF) from both local and remote endpoints to preemptively adjust the jitter buffer delay in anticipation of predicted future losses that have a high probability of occurring. The radio events of the RLF and the scenarios that trigger the preemptive adjustments may be identified, and their use may be expressed in terms of mathematical formulas. Previously, the instantaneous jitter was derived from a weighted history of the media stream, and consequently only packets that had already been received were used to compute the instantaneous jitter to adjust the length of the buffer. By providing and using RLF from both local and remote endpoints, the anticipated delay—for packets that have not yet arrived—may be used to preemptively adjust the buffer, thereby minimizing packet loss without introducing unnecessary delay.Type: GrantFiled: August 7, 2015Date of Patent: January 24, 2017Assignee: Apple Inc.Inventors: Luciano M. Verger, Madhusudan Chaudhary, Onur E. Tackin, Oren M. Elrad, Srinivasan Vasudevan, Thanigaivelu Elangovan, Tiange Shao
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Publication number: 20160353344Abstract: A user equipment (“UE”) connected to a first network that performs methods including receiving a page from the first network indicating an incoming voice call, when it is determined the voice call was not successfully connected, incrementing a value of a counter and when the value satisfies the threshold, switching from the first network to a second network. Another method includes originating a voice call via the first network, when it is determined the voice call was not successfully connected, opening a socket connection with the first network and attempting to re-originate the voice call via the first network.Type: ApplicationFiled: June 1, 2015Publication date: December 1, 2016Inventors: Giri Prassad Deivasigamani, Gencer Cili, Christopher A. Volkert, Muhammad A. Alam, Guarav Nukala, Luciano M. Verger, Yogesh D. Karandikar, Srinivasan Vasudeven, Deepak Chitlur Lakshman
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Publication number: 20160234750Abstract: Apparatus, system and methods for evaluating link quality within a cellular system. A user equipment (“UE”) is connected to a network, wherein the UE communicates data to the network on an uplink (“UL”) link. The UE determines a requested buffer size for a UL communication, determines a transport block size for the UL communication based on a primary set of allocation parameters, and compares the requested buffer size to the transport block size to determine if a data rate for the UL communication satisfies a threshold. When the data rate satisfies the threshold, the UE identifies the UL link as a good quality link and sends acceptable link quality feedback to the network. When the data rate does not satisfy the threshold, the UE performs a further action to test a quality of the UL link.Type: ApplicationFiled: September 30, 2015Publication date: August 11, 2016Inventors: Navid DAMJI, Shivesh MAKHARIA, Luciano M. VERGER, Samy KHAY-IBBAT, Johnson O. SEBENI, Sree Ram KODALI, Sreevalsan VALLATH
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Patent number: 9414315Abstract: A method for reducing power consumption in connected mode discontinuous reception is disclosed. The method can include a wireless communication device sending a transmission for a pending HARQ retransmission process and receiving an ACK for the transmission. The method can further include the wireless communication device determining a subset of remaining uplink transmission opportunities in the pending HARQ retransmission process to monitor for an uplink grant in response to receiving the ACK and monitoring the subset of remaining uplink transmission opportunities for an uplink grant.Type: GrantFiled: February 5, 2014Date of Patent: August 9, 2016Assignee: Apple Inc.Inventors: Navid Damji, Giri Prassad Deivasigamani, Johnson O. Sebeni, Luciano M. Verger, Madhusudan Chaudhary, Samy Khay-Ibbat, Sarma V. Vangala, Shivesh Makharia, Sree Ram Kodali, Srinivasan Vasudevan, Thanigaivelu Elangovan, Zhu Ji
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Patent number: 9332584Abstract: Connected-mode discontinuous reception (C-DRX) cycle scaling by a wireless user equipment (UE) device. The UE may establish a connection with a network via a wireless link, which may operate according to LTE. The UE may communicate with the network via the wireless link using C-DRX over a plurality of C-DRX cycles. Each C-DRX cycle may include a period of time during which the UE operates in a reduced-power state and a scheduled on-duration period of time. An indication may be received to remain in the reduced-power state during the scheduled on-duration period of time of at least one C-DRX cycle. The UE may remain in the reduced-power state during the scheduled on-duration period of time of at least one C-DRX cycle in response to the indication.Type: GrantFiled: October 18, 2012Date of Patent: May 3, 2016Assignee: Apple Inc.Inventors: Luciano M Verger, Navid Damji, Zhu Ji
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Publication number: 20160100131Abstract: In video conferencing over a radio network, the radio equipment is a major power consumer especially in cellular networks such as LTE. In order to reduce the radio power consumption in video conferencing, it is important to introduce an enough radio inactive time. Several types of data buffering and bundling can be employed within a reasonable range of latency that doesn't significantly disrupt the real-time nature of video conferencing. In addition, the data transmission can be synchronized to the data reception in a controlled manner, which can result in an even longer radio inactive time and thus take advantage of radio power saving modes such as LTE C-DRX.Type: ApplicationFiled: December 14, 2015Publication date: April 7, 2016Inventors: Chris Y. Chung, Wen Zhao, Luciano M. Verger, Hyeonkuk Jeong, Gang Lu, Srinivasan Vasudevan, Xiaosong Zhou, Hsi-Jung Wu, James O. Normile
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Patent number: 9215655Abstract: In video conferencing over a radio network, the radio equipment is a major power consumer especially in cellular networks such as LTE. In order to reduce the radio power consumption in video conferencing, it is important to introduce an enough radio inactive time. Several types of data buffering and bundling can be employed within a reasonable range of latency that doesn't significantly disrupt the real-time nature of video conferencing. In addition, the data transmission can be synchronized to the data reception in a controlled manner, which can result in an even longer radio inactive time and thus take advantage of radio power saving modes such as LTE C-DRX.Type: GrantFiled: August 21, 2014Date of Patent: December 15, 2015Assignee: APPLE INC.Inventors: Chris Y. Chung, Wen Zhao, Luciano M. Verger, Hyeonkuk Jeong, Gang Lu, Srinivasan Vasudevan, Xiaosong Zhou, Hsi-Jung Wu, James O. Normile
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Publication number: 20150351060Abstract: A jitter buffer in a Voice over LTE receiver may be influenced by radio level feedback (RLF) from both local and remote endpoints to preemptively adjust the jitter buffer delay in anticipation of predicted future losses that have a high probability of occurring. The radio events of the RLF and the scenarios that trigger the preemptive adjustments may be identified, and their use may be expressed in terms of mathematical formulas. Previously, the instantaneous jitter was derived from a weighted history of the media stream, and consequently only packets that had already been received were used to compute the instantaneous jitter to adjust the length of the buffer. By providing and using RLF from both local and remote endpoints, the anticipated delay—for packets that have not yet arrived—may be used to preemptively adjust the buffer, thereby minimizing packet loss without introducing unnecessary delay.Type: ApplicationFiled: August 7, 2015Publication date: December 3, 2015Inventors: Luciano M. Verger, Madhusudan Chaudhary, Onur E. Tackin, Oren M. Elrad, Srinivasan Vasudevan, Thanigaivelu Elangovan, Tiange Shao
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Patent number: 9107159Abstract: A jitter buffer in a Voice over LTE receiver may be influenced by radio level feedback (RLF) from both local and remote endpoints to preemptively adjust the jitter buffer delay in anticipation of predicted future losses that have a high probability of occurring. The radio events of the RLF and the scenarios that trigger the preemptive adjustments may be identified, and their use may be expressed in terms of mathematical formulas. In prior art designs, the instantaneous jitter is derived from a weighted history of the media stream, and consequently only packets that have already arrived are used to compute the instantaneous jitter to adjust the length of the buffer. By providing and using RLF from both local and remote endpoints, the anticipated delay—for packets that have not yet arrived—may be used to preemptively adjust the buffer, thereby minimizing packet loss without introducing unnecessary delay.Type: GrantFiled: June 2, 2014Date of Patent: August 11, 2015Assignee: Apple Inc.Inventors: Luciano M Verger, Madhusudan Chaudhary, Onur E Tackin, Oren M Elrad, Srinivasan Vasudevan, Thanigaivelu Elangovan, Tiange Shao
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Publication number: 20140362830Abstract: A jitter buffer in a Voice over LTE receiver may be influenced by radio level feedback (RLF) from both local and remote endpoints to preemptively adjust the jitter buffer delay in anticipation of predicted future losses that have a high probability of occurring. The radio events of the RLF and the scenarios that trigger the preemptive adjustments may be identified, and their use may be expressed in terms of mathematical formulas. In prior art designs, the instantaneous jitter is derived from a weighted history of the media stream, and consequently only packets that have already arrived are used to compute the instantaneous jitter to adjust the length of the buffer. By providing and using RLF from both local and remote endpoints, the anticipated delay—for packets that have not yet arrived—may be used to preemptively adjust the buffer, thereby minimizing packet loss without introducing unnecessary delay.Type: ApplicationFiled: June 2, 2014Publication date: December 11, 2014Applicant: Apple Inc.Inventors: Luciano M. Verger, Madhusudan Chaudhary, Onur E. Tackin, Oren M. Elrad, Srinivasan Vasudevan, Thanigaivelu Elangovan, Tiange Shao
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Publication number: 20140362162Abstract: In video conferencing over a radio network, the radio equipment is a major power consumer especially in cellular networks such as LTE. In order to reduce the radio power consumption in video conferencing, it is important to introduce an enough radio inactive time. Several types of data buffering and bundling can be employed within a reasonable range of latency that doesn't significantly disrupt the real-time nature of video conferencing. In addition, the data transmission can be synchronized to the data reception in a controlled manner, which can result in an even longer radio inactive time and thus take advantage of radio power saving modes such as LTE C-DRX.Type: ApplicationFiled: August 21, 2014Publication date: December 11, 2014Inventors: Chris Y. Chung, Wen Zhao, Luciano M. Verger, Hyeonkuk Jeong, Gang Lu, Srinivasan Vasudevan, Xiaosong Zhou, Hsi-Jung Wu, James O. Normile
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Patent number: 8830892Abstract: In video conferencing over a radio network, the radio equipment is a major power consumer especially in cellular networks such as LTE. In order to reduce the radio power consumption in video conferencing, it is important to introduce an enough radio inactive time. Several types of data buffering and bundling can be employed within a reasonable range of latency that doesn't significantly disrupt the real-time nature of video conferencing. In addition, the data transmission can be synchronized to the data reception in a controlled manner, which can result in an even longer radio inactive time and thus take advantage of radio power saving modes such as LTE C-DRX.Type: GrantFiled: November 2, 2012Date of Patent: September 9, 2014Assignee: Apple Inc.Inventors: Chris Y. Chung, Wen Zhao, Luciano M. Verger, Hyeonkuk Jeong, Gang Lu, Srinivasan Vasudevan, Xiaosong Zhou, Hsi-Jung Wu, James O. Normile
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Publication number: 20140219151Abstract: A method for reducing power consumption in connected mode discontinuous reception is disclosed. The method can include a wireless communication device sending a transmission for a pending HARQ retransmission process and receiving an ACK for the transmission. The method can further include the wireless communication device determining a subset of remaining uplink transmission opportunities in the pending HARQ retransmission process to monitor for an uplink grant in response to receiving the ACK and monitoring the subset of remaining uplink transmission opportunities for an uplink grant.Type: ApplicationFiled: February 5, 2014Publication date: August 7, 2014Applicant: Apple Inc.Inventors: Navid Damji, Giri Prassad Deivasigamani, Johnson O. Sebeni, Luciano M. Verger, Madhusudan Chaudhary, Samy Khay-Ibbat, Sarma V. Vangala, Shivesh Makharia, Sree Ram Kodali, Srinivasan Vasudevan, Thanigaivelu Elangovan, Zhu Ji
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Patent number: 8787835Abstract: A method and apparatus for forced cell/RAT reselection is disclosed. In one embodiment, a cellular mobile communication device may attempt to access a network through a serving cell. Responsive to determining that access to the network is barred through the serving cell, the mobile communication device may determine if another cell is available through which it may obtain access to the network. If another cell providing network access is available, the mobile communication device may force reselection from the serving cell to the new cell. If no other cell providing access to the network is available to the mobile communication device, a forced reselection of a radio access technology may be performed.Type: GrantFiled: September 28, 2012Date of Patent: July 22, 2014Assignee: Apple Inc.Inventors: Luciano M Verger, Srinivasan Vasudevan, Wen Zhao
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Patent number: 8755318Abstract: Synchronizing uplink and downlink transmissions by a wireless user equipment (UE) device. A connection with a network may be established via a wireless link with a cell. The UE may operate in an active state during first periods of time in which uplink or downlink communications may be performed between the UE and the network. The UE may operate in a reduced-power state during second periods of time in which uplink and downlink communications are not performed. The first periods of time may alternate with the second periods of time in a repeating manner. Uplink data generated by the UE may be buffered during second periods of time and transmitted during first periods of time. Buffering uplink data in this manner may prevent the UE from immediately transitioning from the reduced-power state to the active state to transmit uplink data, which may conserve battery of the UE.Type: GrantFiled: September 5, 2012Date of Patent: June 17, 2014Assignee: Apple Inc.Inventors: Luciano M. Verger, Gang Lu, Hyeonkuk Jeong, Chris Y Chung
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Publication number: 20140112221Abstract: Connected-mode discontinuous reception (C-DRX) cycle scaling by a wireless user equipment (UE) device. The UE may establish a connection with a network via a wireless link, which may operate according to LTE. The UE may communicate with the network via the wireless link using C-DRX over a plurality of C-DRX cycles. Each C-DRX cycle may include a period of time during which the UE operates in a reduced-power state and a scheduled on-duration period of time. An indication may be received to remain in the reduced-power state during the scheduled on-duration period of time of at least one C-DRX cycle. The UE may remain in the reduced-power state during the scheduled on-duration period of time of at least one C-DRX cycle in response to the indication.Type: ApplicationFiled: October 18, 2012Publication date: April 24, 2014Applicant: APPLE INC.Inventors: Luciano M Verger, Navid Damji, Zhu Ji
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Publication number: 20140064160Abstract: Synchronizing uplink and downlink transmissions by a wireless user equipment (UE) device. A connection with a network may be established via a wireless link with a cell. The UE may operate in an active state during first periods of time in which uplink or downlink communications may be performed between the UE and the network. The UE may operate in a reduced-power state during second periods of time in which uplink and downlink communications are not performed. The first periods of time may alternate with the second periods of time in a repeating manner. Uplink data generated by the UE may be buffered during second periods of time and transmitted during first periods of time. Buffering uplink data in this manner may prevent the UE from immediately transitioning from the reduced-power state to the active state to transmit uplink data, which may conserve battery of the UE.Type: ApplicationFiled: September 5, 2012Publication date: March 6, 2014Inventors: Luciano M. Verger, Gang Lu, Hyeonkuk Jeong, Chris Y. Chung
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Publication number: 20140064165Abstract: In video conferencing over a radio network, the radio equipment is a major power consumer especially in cellular networks such as LTE. In order to reduce the radio power consumption in video conferencing, it is important to introduce an enough radio inactive time. Several types of data buffering and bundling can be employed within a reasonable range of latency that doesn't significantly disrupt the real-time nature of video conferencing. In addition, the data transmission can be synchronized to the data reception in a controlled manner, which can result in an even longer radio inactive time and thus take advantage of radio power saving modes such as LTE C-DRX.Type: ApplicationFiled: November 2, 2012Publication date: March 6, 2014Applicant: Apple Inc.Inventors: Chris Y. Chung, Wen Zhao, Luciano M. Verger, Hyeonkuk Jeong, Gang Lu, Srinivasan Vasudevan, Xiaosong Zhou, Hsi-Jung Wu, James O. Normile
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Publication number: 20140018075Abstract: A method and apparatus for forced cell/RAT reselection is disclosed. In one embodiment, a cellular mobile communication device may attempt to access a network through a serving cell. Responsive to determining that access to the network is barred through the serving cell, the mobile communication device may determine if another cell is available through which it may obtain access to the network. If another cell providing network access is available, the mobile communication device may force reselection from the serving cell to the new cell. If no other cell providing access to the network is available to the mobile communication device, a forced reselection of a radio access technology may be performed.Type: ApplicationFiled: September 28, 2012Publication date: January 16, 2014Applicant: APPLE INC.Inventors: Luciano M. Verger, Srinivasan Vasudevan, Wen Zhao