Patents by Inventor Chun Chung Patrick Chan

Chun Chung Patrick Chan 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).

  • Patent number: 11304198
    Abstract: Methods, systems, and devices for wireless communications are described Generally, the described techniques provide for dynamically adjusting PDCP data splitting based on traffic parameters. In some examples, a wireless device may allocate data between first and second radio access technologies. The wireless device may receive a first set of data traffic parameters from a medium access control layer at the wireless device, where the data traffic parameters are associated with the first radio access technology. The wireless device may receive a second set of data traffic parameters from a medium access control layer at a second wireless device, where the data traffic parameters are associated with the second radio access technology. The wireless device may adjust the data allocation to the first and second radio access technologies based on receiving the first and second sets of data traffic parameters.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: April 12, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Alvin Siu-Chung Ng, Long Duan, Ming Yang, Mukesh Kumar Mittal, Rajasekar Arulprakasam, Chun Chung Patrick Chan, Abhijeet Prasad, Neelakanta Venkata Seshachalam Chimmapudi
  • Publication number: 20220061053
    Abstract: Methods, systems, and devices for wireless communications are described Generally, the described techniques provide for dynamically adjusting PDCP data splitting based on traffic parameters. In some examples, a wireless device may allocate data between first and second radio access technologies. The wireless device may receive a first set of data traffic parameters from a medium access control layer at the wireless device, where the data traffic parameters are associated with the first radio access technology. The wireless device may receive a second set of data traffic parameters from a medium access control layer at a second wireless device, where the data traffic parameters are associated with the second radio access technology. The wireless device may adjust the data allocation to the first and second radio access technologies based on receiving the first and second sets of data traffic parameters.
    Type: Application
    Filed: August 19, 2020
    Publication date: February 24, 2022
    Inventors: Alvin Siu-Chung Ng, Long Duan, Ming Yang, Mukesh Kumar Mittal, Rajasekar Arulprakasam, Chun Chung Patrick Chan, Abhijeet Prasad, Neelakanta Venkata Seshachalam Chimmapudi
  • Patent number: 9942803
    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may determine that a voice over long term evolution (VoLTE) service has encountered a threshold quantity of failures within a particular period of time. The apparatus may transfer from a VoLTE mode associated with the VoLTE service to another mode for a voice call based on determining that the VoLTE service has encountered the threshold quantity of failures within the particular period of time.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: April 10, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Alvin Ng, Chun Chung Patrick Chan, Tsun Sang Cheong, Tak Wai Wu
  • Publication number: 20170201911
    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may determine that a voice over long term evolution (VoLTE) service has encountered a threshold quantity of failures within a particular period of time. The apparatus may transfer from a VoLTE mode associated with the VoLTE service to another mode for a voice call based on determining that the VoLTE service has encountered the threshold quantity of failures within the particular period of time.
    Type: Application
    Filed: January 11, 2016
    Publication date: July 13, 2017
    Inventors: Alvin Ng, Chun Chung Patrick Chan, Tsun Sang Cheong, Tak Wai Wu
  • Publication number: 20170164324
    Abstract: Disclosed are methods and apparatus optimizing the performance of a radio access technology, such as LTE, in a single radio wireless communication system supporting multiple radio access technologies, such as both LTE and 1x CDMA. The methods and apparatus effectuate this optimization in a single radio LTE (SRLTE) device, for example, through increasing system parameters, such as Slot Cycle Index (SCI) related to a maximum allowed periodicity of when a wireless device tune away from a LTE data call to monitor paging from 1x CDMA. Increasing the SCI value in the wireless device reduces the periodicity of 1x CDMA paging tune away from an LTE data call, thereby optimizing the LTE performance.
    Type: Application
    Filed: December 4, 2015
    Publication date: June 8, 2017
    Inventors: Alvin Siu-Chung Ng, Chun Chung Patrick Chan, Tsun Sang Cheong, Tak Wai Wu
  • Patent number: 9538421
    Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. The apparatus may be a first device. The first device operates a ROHC compressor in a first state at a ROHC sublayer to compress a first packet to be transmitted to a second device. The first packet includes information for a ROHC decompressor to establish a ROHC context. The information enables the ROHC decompressor to decompress a second packet compressed by the ROHC compressor when operating in a second state. The first device determines, at a sublayer or a layer lower than the ROHC sublayer, whether the first packet has been successfully received at the second device. The first device continues operating the ROHC compressor in the first state in response to a determination that the first packet has not been successfully received at the second device.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: January 3, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Chun Chung Patrick Chan, Tsun Sang Cheong, Alvin Siu-Chung Ng, Tak Wai Wu
  • Publication number: 20160381598
    Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. The apparatus may be a first device. The first device operates a ROHC compressor in a first state at a ROHC sublayer to compress a first packet to be transmitted to a second device. The first packet includes information for a ROHC decompressor to establish a ROHC context. The information enables the ROHC decompressor to decompress a second packet compressed by the ROHC compressor when operating in a second state. The first device determines, at a sublayer or a layer lower than the ROHC sublayer, whether the first packet has been successfully received at the second device. The first device continues operating the ROHC compressor in the first state in response to a determination that the first packet has not been successfully received at the second device.
    Type: Application
    Filed: June 25, 2015
    Publication date: December 29, 2016
    Inventors: Chun Chung Patrick CHAN, Tsun Sang CHEONG, Alvin Siu-Chung NG, Tak Wai WU
  • Patent number: 9485696
    Abstract: Systems, methods, and apparatuses for switching networks in active mode are described herein. In one aspect a method of wireless communication is provided. The method includes communicating with a device over a first network. The method further includes monitoring for a second network during the communication with the device, the second network having a higher throughput than the first network. The method further includes determining an application usage history of the device. The method further includes selectively transitioning the communication from the first network to the second network based on a parameter of the first network, a parameter of the second network, and an application usage history of the device.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: November 1, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Alvin Siu-Chung Ng, Troy Russell Curtiss, Tak-Wai Wu, Cheong Tsun Sang, Chun Chung Patrick Chan, Chintan Pravin Turakhia
  • Publication number: 20160278105
    Abstract: Disclosed are methods and apparatus for reducing a call setup time in wireless communication systems, particularly for systems employing SVLTE where an LTE network is used for data and a 1×CDMA network for voice. The methods and apparatus feature the capability during mobile terminated (MT) calls to modify a normal mode of operation of a predefined operation in a mobile terminal (e.g., call switched fallback (CSFB)), wherein processes normally performed for between a first network (e.g., LTE) are not performed in the mobile terminal, allowing a page response message to be sent directly, and thus sooner, to the other network (e.g., 1×CDMA) in response to an MT call page. This hybrid operation allowing the skipping of normal processes reduces the time for call set up.
    Type: Application
    Filed: March 20, 2015
    Publication date: September 22, 2016
    Inventors: Alvin Siu-Chung Ng, Chun Chung Patrick Chan, Tsun Sang Cheong, Tak Wai Wu
  • Publication number: 20160029274
    Abstract: Systems, methods, and apparatuses for switching networks in active mode are described herein. In one aspect a method of wireless communication is provided. The method includes communicating with a device over a first network. The method further includes monitoring for a second network during the communication with the device, the second network having a higher throughput than the first network. The method further includes determining an application usage history of the device. The method further includes selectively transitioning the communication from the first network to the second network based on a parameter of the first network, a parameter of the second network, and an application usage history of the device.
    Type: Application
    Filed: July 23, 2014
    Publication date: January 28, 2016
    Inventors: Alvin Siu-Chung Ng, Troy Russell Curtiss, Tak-Wai Wu, Chun Chung Patrick Chan, Cheong Tsun Sang, Chintan Pravin Turakhia