Patents by Inventor Francis Ming-Meng Ngai
Francis Ming-Meng Ngai 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: 20150173082Abstract: The various embodiments provide methods implemented in a MSMA communication device for managing a victim subscription's de-sense by proactively implementing an RF coexistence management strategy on the victim subscription when an RF coexistence event starts. In various embodiments, a MSMA communication device may implement an RF coexistence management strategy by determining when an aggressor subscription will de-sense a victim subscription and configuring the victim to anticipate and mitigate de-sense during the aggressor's transmissions. Thus, the various embodiments may provide dramatic improvements to the victim's overall reception performance and overall user experience.Type: ApplicationFiled: February 24, 2015Publication date: June 18, 2015Inventors: Francis Ming-Meng NGAI, Insung KANG, Reza SHAHIDI
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Patent number: 9042241Abstract: A method, an apparatus, and a computer program product for wireless communication are provided in which a user equipment (UE) may obtain at least one of a plurality of circuit switched fall back (CSFB) parameters from at least one of an LTE eNodeB or a usable system, wherein the plurality of CSFB parameters comprise a channel list, a system time, and a neighbor list, and may perform one or more system acquisition actions based on the at least one of the plurality of obtained CSFB parameters.Type: GrantFiled: December 2, 2010Date of Patent: May 26, 2015Assignee: QUALCOMM IncorporatedInventors: Francis Ming-Meng Ngai, Reza Shahidi
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Publication number: 20150119103Abstract: Methods, systems and devices for prioritizing communication technologies to allocate resources in a mobile device. The mobile device may employ a dual subscription, dual active (DSDA) configuration in which two subscriptions may be associated with concurrently active communications, such as voice or data calls. The mobile device may identify current states that indicate the type of communications associated with the subscriptions. In an embodiment, an applications processor within the mobile device may perform the state identifications. The mobile device may determine priorities of the concurrently active subscriptions based on the identified states. In an embodiment, the priorities may be determined by a modem processor within the mobile device. When the priorities are determined to be the same, the mobile device may perform a tiebreaker algorithm to further identify priorities. Based on the determined priorities, the mobile device may allocate resources to favor the subscription with the higher priority.Type: ApplicationFiled: October 29, 2013Publication date: April 30, 2015Applicant: QUALCOMM IncorporatedInventors: Francis Ming-Meng NGAI, Reza Shahidi, Amit Mahajan, Sridhar Bandaru, Ashish Gaonekar, Jeffrey Niemann, Henri Felix Begin, Ling Hang, Srikanth Chintala, Shivank Nayak
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Patent number: 8909282Abstract: This disclosure provides systems, methods and apparatus for providing transmission power limit back-off for Specific Absorption Rate (SAR) compliance. In one aspect, a method implemented in a wireless communication apparatus is provided. The method includes receiving an indication of at least one operating mode indicative of a proximity and an orientation of at least one transmitting antenna of the wireless communication apparatus. The method further includes selecting from a plurality of transformations associated with the at least one operating mode. The method further includes applying a selected transformation to adjust a relationship between a power transmission level of a first transmitter and a power transmission level of a second transmitter. The method further includes determining a target power transmission level of the first transmitter based on the adjusted relationship and a current power transmission level of the second transmitter.Type: GrantFiled: March 2, 2012Date of Patent: December 9, 2014Assignee: QUALCOMM IncorporatedInventors: Francis Ming-Meng Ngai, John A. Forrester, Anshul Pandey, Supratik Bhattacharjee, Rema Vaidyanathan, Brian Michael George, Zhu Ji
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Patent number: 8838097Abstract: System for better service reselection when on other than the Most Preferred system. In various aspects, methods and corresponding apparatus are provided for a service reselection system that operates on a device to provide better service reselection during idle mode, origination mode and active traffic mode. A method includes detecting entry into slotted mode operation on a Less Preferred system, waiting for page monitoring to complete at selected slot cycle wakeup times, performing a service reselection scan at the selected slot cycle wakeup times to find More Preferred systems, wherein the service reselection scan is performed after the page monitoring has completed, and limiting a time duration of the service reselection scan so as to avoid interference with the page monitoring to be performed at slot cycle wakeup times that follow the selected slot cycle wakeup times.Type: GrantFiled: March 1, 2011Date of Patent: September 16, 2014Assignee: Qualcomm IncorporatedInventors: Vikram B. Yerrabommanahalli, Saad Zaidi, Daniel Henry Salek, Francis Ming-Meng Ngai
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Publication number: 20140200046Abstract: 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: ApplicationFiled: February 21, 2013Publication date: July 17, 2014Applicant: QUALCOMM IncorporatedInventors: Divaydeep Sikri, Mungal Singh Dhanda, William Stancer, Francis Ming-Meng Ngai, Simon Walke
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Patent number: 8781437Abstract: This disclosure provides systems, methods and apparatus for providing transmission power limit back-off for Specific Absorption Rate (SAR) compliance. In one aspect, a method implemented in a wireless communication apparatus is provided. The method includes receiving an indication of at least one operating mode indicative of a proximity and an orientation of at least one transmitting antenna of the wireless communication apparatus. The method further includes determining a power transmission characteristic based on the determined operating mode and at least one of a radio access technology type, a band-class, a transmission configuration, an uplink channel, a traffic state, and a radio access technology transmission state used by the wireless communication apparatus, or any combination thereof.Type: GrantFiled: March 2, 2012Date of Patent: July 15, 2014Assignee: QUALCOMM IncorporatedInventors: Francis Ming-Meng Ngai, John A. Forrester, Anshul Pandey, Supratik Bhattacharjee, Rema Vaidyanathan, Brian Michael George, Zhu Ji
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Publication number: 20130309981Abstract: This disclosure provides systems, methods, and apparatus for mobile transmit diversity. In one aspect, a wireless communication apparatus is provided. The wireless communication apparatus includes a transmit circuit configured to transmit wireless communications via either a first antenna or a second antenna. The wireless communication apparatus further includes a receive circuit configured to receive wireless communications using either the first antenna or the second antenna.Type: ApplicationFiled: December 11, 2012Publication date: November 21, 2013Inventors: Francis Ming-Meng Ngai, Rashid Ahmed Akbar Attar, Daniel Fred Filipovic, Donna Ghosh, Christopher Gerard Lott, Jun Hu
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Publication number: 20130308554Abstract: This disclosure provides systems, methods, and apparatus for mobile transmit diversity. In one aspect, a wireless communication apparatus is provided. The wireless communication apparatus includes a plurality of antennas. The wireless communication apparatus further includes a plurality of transmit circuits, each transmit circuit of the plurality of transmit circuits being configured to transmit according to a different radio access technology. The wireless communication apparatus further includes a controller configured to selectively switch each of the transmit circuits of the plurality of transmit circuits to transmit wireless communications via a corresponding one of the plurality of antennas based on priority levels of data for each of the transmit circuits and a detected operating mode of the wireless communication apparatus.Type: ApplicationFiled: December 11, 2012Publication date: November 21, 2013Applicant: Qualcomm IncorporatedInventors: Francis Ming-Meng Ngai, Rashid Ahmed Akbar Attar, Daniel Fred Filipov, Donna Ghosh, Christopher Gerard Lott
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Publication number: 20130252607Abstract: An access terminal configured for use in a wireless communication system utilizing discontinuous reception (DRx). To reduce power consumption, a pilot acquisition timeline may be reduced when channel conditions are favorable; and to improve call quality, the pilot acquisition timeline may be increased when channel conditions are poor. Other aspects, embodiments, and features are also claimed and described.Type: ApplicationFiled: September 13, 2012Publication date: September 26, 2013Applicant: Qualcomm IncorporatedInventors: Francis Ming-Meng Ngai, Stanley Tsai, Bhaskara V. Batchu
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Patent number: 8442516Abstract: A method and apparatus for world-mode devices capable of managing technology selection for multimode roaming between existing access technologies, as well as possible future access technologies, in a manner that eliminates wasteful scanning for non-existent systems and reduces roaming charges is disclosed. The method allows the device an opportunity to reacquire its home system before scanning for available roaming network resources in a prioritized manner that mitigates roaming costs, while conserving power and acquisition delays by eliminating scanning for non-existent system types. A minimum OOS duration is imposed on a home system before acquisition of a roaming partner to provide more time to re-acquire the home system. Preferred partner scanning and acquisition reduces roaming charges, while scanning for non existent systems is eliminated altogether.Type: GrantFiled: December 16, 2011Date of Patent: May 14, 2013Assignee: QUALCOMM IncorporatedInventors: Arvind Swaminathan, Francis Ming-Meng Ngai, Ameya Rajendraprasad Kasbekar
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Publication number: 20130100885Abstract: Methods and apparatus for selectively invoking receive diversity during power-up/initial acquisition and out of service modes are disclosed. A method can include selectively enabling receive diversity based on an initial acquisition attempt by one of the receive chains in a wireless device having multiple receive chains. A method can also include enabling receive diversity based on a predetermined list of channels to be acquired. A predetermined list of channels is a subset of a plurality of channels that may be acquired. Other aspects, embodiments, and features are also claimed and described.Type: ApplicationFiled: October 2, 2012Publication date: April 25, 2013Applicant: Qualcomm IncorporatedInventors: Francis Ming-Meng Ngai, Rashad Ahmed Akbar Attar, Won Joon Choi, Stanley Tsai, Insung Kang, Jing Sun, Amir Dabbagh
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Publication number: 20130090117Abstract: Motion status states reported by an advanced motion detection process or other means of obtaining a movement state of Stationary or Non-Stationary from filtered accelerometer data are utilized to reacquire service during Out of Service scenarios. Both movement states operate in three power phases: aggressive scanning or normal power mode, slow scanning or moderate power mode, and deep sleep or power saving mode. The scanning rate, power mode, scanning period and/or channel list depend upon the movement state and power phase. Motion information obtained from an advanced motion detection process provides substantial improvements in service reacquisition performance and power consumption in stationary Out of Service scenarios. When compared to traditional service reacquisition scanning routines, the reductions in average current can be achieved of: at a 5-minute OOS mark, ˜45% reduction, at a 15-minute OOS mark, ˜60% reduction and at a 6-hour OOS mark, ˜50% reduction.Type: ApplicationFiled: July 31, 2012Publication date: April 11, 2013Applicant: QUALCOMM INCORPORATEDInventors: Francis Ming-Meng Ngai, Carlos Puig, Arvind Swaminathan
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Publication number: 20130090151Abstract: Advanced Motion Detection in Wireless Communication Systems processes accelerometer or other sensor input data to distinguish between random in-place movements and actual start of motion that could produce a change in the user's location by filtering unsustained random motion. Random in-place motion such as table banging, knee jiggling, vibration, etc. are filtered out from Stationary and Non-Stationary motion state determinations. The process utilizes data from motion sensors or any accelerometer standard in all smart mobile devices and any mobile device that has automatic portrait-landscape switching (screen rotation). A state machine processes sensor or other input to produce a filtered Stationary or Non-Stationary output movement state unaffected by transient motion or rest periods.Type: ApplicationFiled: July 31, 2012Publication date: April 11, 2013Applicant: QUALCOMM INCORPORATEDInventors: Francis Ming-Meng Ngai, Carlos Puig, Arvind Swaminathan
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Publication number: 20120270592Abstract: This disclosure provides systems, methods and apparatus for providing transmission power limit back-off for Specific Absorption Rate (SAR) compliance. In one aspect, a method implemented in a wireless communication apparatus is provided. The method includes receiving an indication of at least one operating mode indicative of a proximity and an orientation of at least one transmitting antenna of the wireless communication apparatus. The method further includes selecting from a plurality of transformations associated with the at least one operating mode. The method further includes applying a selected transformation to adjust a relationship between a power transmission level of a first transmitter and a power transmission level of a second transmitter. The method further includes determining a target power transmission level of the first transmitter based on the adjusted relationship and a current power transmission level of the second transmitter.Type: ApplicationFiled: March 2, 2012Publication date: October 25, 2012Applicant: QUALCOMM IncorporatedInventors: Francis Ming-Meng Ngai, John A. Forrester, Anshul Pandey, Supratik Bhattacharjee, Rema Vaidyanathan, Brian Michael George, Zhu Ji
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Publication number: 20120270519Abstract: This disclosure provides systems, methods and apparatus for providing transmission power limit back-off for Specific Absorption Rate (SAR) compliance. In one aspect, a method implemented in a wireless communication apparatus is provided. The method includes receiving an indication of at least one operating mode indicative of a proximity and an orientation of at least one transmitting antenna of the wireless communication apparatus. The method further includes determining a power transmission characteristic based on the determined operating mode and at least one of a radio access technology type, a band-class, a transmission configuration, an uplink channel, a traffic state, and a radio access technology transmission state used by the wireless communication apparatus, or any combination thereof.Type: ApplicationFiled: March 2, 2012Publication date: October 25, 2012Applicant: QUALCOMM IncorporatedInventors: Francis Ming-Meng Ngai, John A. Forrester, Anshul Pandey, Supratik Bhattacharjee, Rema Vaidyanathan, Brian Michael George, Zhu Ji
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Publication number: 20120258710Abstract: A method and apparatus for world-mode devices capable of managing technology selection for multimode roaming between existing access technologies, as well as possible future access technologies, in a manner that eliminates wasteful scanning for non-existent systems and reduces roaming charges is disclosed. The method allows the device an opportunity to reacquire its home system before scanning for available roaming network resources in a prioritized manner that mitigates roaming costs, while conserving power and acquisition delays by eliminating scanning for non-existent system types. A minimum OOS duration is imposed on a home system before acquisition of a roaming partner to provide more time to re-acquire the home system. Preferred partner scanning and acquisition reduces roaming charges, while scanning for non existent systems is eliminated altogether.Type: ApplicationFiled: December 16, 2011Publication date: October 11, 2012Applicant: QUALCOMM INCORPORATEDInventors: Arvind Swaminathan, Francis Ming-Meng Ngai, Ameya Rajendraprasad Kasbekar
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Publication number: 20120258709Abstract: A method and apparatus for world-mode devices capable of managing technology selection for multimode roaming between existing access technologies, as well as possible future access technologies, in a manner that eliminates wasteful scanning for non-existent systems and reduces roaming charges is disclosed. The method allows the device an opportunity to reacquire its home system before scanning for available roaming network resources in a prioritized manner that mitigates roaming costs, while conserving power and acquisition delays by eliminating scanning for non-existent system types. A minimum OOS duration is imposed on a home system before acquisition of a roaming partner to provide more time to re-acquire the home system. Preferred partner scanning and acquisition reduces roaming charges, while scanning for non existent systems is eliminated altogether.Type: ApplicationFiled: April 8, 2011Publication date: October 11, 2012Applicant: QUALCOMM INCORPORATEDInventors: Arvind Swaminathan, Francis Ming-Meng Ngai, Ameya Rajendraprasad Kasbekar
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Publication number: 20120225649Abstract: System for better service reselection when on other than the Most Preferred system. In various aspects, methods and corresponding apparatus are provided for a service reselection system that operates on a device to provide better service reselection during idle mode, origination mode and active traffic mode. A method includes detecting entry into slotted mode operation on a Less Preferred system, waiting for page monitoring to complete at selected slot cycle wakeup times, performing a service reselection scan at the selected slot cycle wakeup times to find More Preferred systems, wherein the service reselection scan is performed after the page monitoring has completed, and limiting a time duration of the service reselection scan so as to avoid interference with the page monitoring to be performed at slot cycle wakeup times that follow the selected slot cycle wakeup times.Type: ApplicationFiled: March 1, 2011Publication date: September 6, 2012Applicant: QUALCOMM IncorporatedInventors: Vikram B. Yerrabommanahalli, Saad Zaidi, Daniel Henry Salek, Francis Ming-Meng Ngai
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Publication number: 20120140644Abstract: A method, an apparatus, and a computer program product for wireless communication are provided in which a user equipment (UE) may obtain at least one of a plurality of circuit switched fall back (CSFB) parameters from at least one of an LTE eNodeB or a usable system, wherein the plurality of CSFB parameters comprise a channel list, a system time, and a neighbor list, and may perform one or more system acquisition actions based on the at least one of the plurality of obtained CSFB parameters.Type: ApplicationFiled: December 2, 2010Publication date: June 7, 2012Applicant: QUALCOMM INCORPORATEDInventors: Francis Ming-Meng Ngai, Reza Shahidi