Patents by Inventor Tak Wai Wu

Tak Wai Wu 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: 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: 9485727
    Abstract: Techniques for determining if it is safe for a mobile device to transition directly from a traffic session to a paging mode and for avoiding network re-synchronization procedures in stationary M2M devices are disclosed. It may be safe for direct transition if before-call and in-call network parameters correspond. If safe, the mobile device may transition from the traffic session directly to the paging mode to begin immediately monitoring the paging channel. In stationary M2M devices, paging information is stored before the traffic session and, once the traffic session is complete, the M2M device may be configured to receive paging messaging based on the stored paging information. The M2M device may also store system access information and confirm the validity of the information before returning to the sleep state. The stationary M2M device avoids network re-synchronization procedures. Other aspects, embodiments, and features are also claimed and described.
    Type: Grant
    Filed: April 4, 2013
    Date of Patent: November 1, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Alvin S. Ng, Troy R. Curtiss, Stanley Tsai, Joshua T. MacDonald, Chunchung Chan, Tak Wai Wu, Ammar T. Kitabi
  • 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
  • Publication number: 20140269472
    Abstract: Techniques for determining if it is safe for a mobile device to transition directly from a traffic session to a paging mode and for avoiding network re-synchronization procedures in stationary M2M devices are disclosed. It may be safe for direct transition if before-call and in-call network parameters correspond. If safe, the mobile device may transition from the traffic session directly to the paging mode to begin immediately monitoring the paging channel. In stationary M2M devices, paging information is stored before the traffic session and, once the traffic session is complete, the M2M device may be configured to receive paging messaging based on the stored paging information. The M2M device may also store system access information and confirm the validity of the information before returning to the sleep state. The stationary M2M device avoids network re-synchronization procedures. Other aspects, embodiments, and features are also claimed and described.
    Type: Application
    Filed: April 4, 2013
    Publication date: September 18, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Alvin S. NG, Troy R. Curtiss, Stanley Tsai, Joshua T. MacDonald, chunchung Chan, Tak Wai Wu, Ammar T. Kitabi