Patents by Inventor Siu Bun Chan

Siu Bun 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: 10536863
    Abstract: A gateway turns encrypted PS data traffic on the Iub interface into clear IP packets so that WAN stream de-duplication and other optimization can be performed to eliminate the transfer of repetitive data across the Iub interface, thereby increasing the throughput between the NodeB and the RNC of the WCDMA network. The gateway pulls PS data traffic out from Iub without disturbing the signaling and CS traffic. The bifurcated PS data traffic is redirected to the GTP I/O port of the gateway where the stream de-duplication is applied. Deployment of the gateway is transparent to the WCDMA network. No network reconfiguration is required to deploy the gateway on the Iub interface.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: January 14, 2020
    Assignee: IDIRECT UK LIMITED
    Inventors: Michael Godley, Richard Lord, Edmond Higgins, QiMing Zhu, Siu Bun Chan, Ian Walter
  • Patent number: 9955405
    Abstract: In one embodiment, a wireless system comprises a host MSC/VLR of a public land mobile network (PLMN) and a plurality of base station subsystems (BBSs). Each BSS includes a respective base station controller (BSC) and one or more base transceiver stations (BTSs). The wireless system further comprises a virtual base station controller (VBSC) communicatively coupled to the plurality of BSSs and the host MSC/VLR. The VBSC appears, from the perspective of the host MSCNLR, to be a base station controller for the BTSs in the plurality of BSSs. The VBSC and at least some of the BSSs include functionality for locally switching calls in the BSSs.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: April 24, 2018
    Assignee: PARALLEL LIMITED
    Inventors: Robert D. Schmidt, Siu Bun Chan, Qiming Zhu
  • Patent number: 9930543
    Abstract: A gateway turns encrypted PS data traffic on the Iub interface into clear IP packets so that WAN stream de-duplication and other optimization can be performed to eliminate the transfer of repetitive data across the Iub interface, thereby increasing the throughput between the NodeB and the RNC of the WCDMA network. The gateway pulls PS data traffic out from Iub without disturbing the signaling and CS traffic. The bifurcated PS data traffic is redirected to the GTP I/O port of the gateway where the stream de-duplication is applied. Deployment of the gateway is transparent to the WCDMA network. No network reconfiguration is required to deploy the gateway on the Iub interface.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: March 27, 2018
    Assignee: Parallel Limited
    Inventors: Michael Godley, Richard Lord, Edmond Higgins, QiMing Zhu, Siu Bun Chan, Ian Walter
  • Publication number: 20180070249
    Abstract: A gateway turns encrypted PS data traffic on the Iub interface into clear IP packets so that WAN stream de-duplication and other optimization can be performed to eliminate the transfer of repetitive data across the Iub interface, thereby increasing the throughput between the NodeB and the RNC of the WCDMA network. The gateway pulls PS data traffic out from Iub without disturbing the signaling and CS traffic. The bifurcated PS data traffic is redirected to the GTP I/O port of the gateway where the stream de-duplication is applied. Deployment of the gateway is transparent to the WCDMA network. No network reconfiguration is required to deploy the gateway on the Iub interface.
    Type: Application
    Filed: November 8, 2017
    Publication date: March 8, 2018
    Applicant: Parallel Limited
    Inventors: Michael GODLEY, Richard Lord, Edmond Higgins, QiMing Zhu, Siu Bun Chan, Ian Walter
  • Patent number: 9144112
    Abstract: In one embodiment, a wireless system comprises a host MSC/VLR of a public land mobile network (PLMN) and a plurality of base station subsystems (BSSs). Each BSS includes a respective base station controller (BSC) and one or more base transceiver stations (BTSs). The wireless system further comprises a virtual base station controller (VBSC) communicatively coupled to the plurality of BSSs and the host MSC/VLR. The VBSC appears, from the perspective of the host MSCNLR, to be a base station controller for the BTSs in the plurality of BSSs. The VBSC and at least some of the BSSs include functionality for locally switching calls in the BSSs.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: September 22, 2015
    Assignee: PARALLEL LIMITED
    Inventors: Robert D. Schmidt, Siu Bun Chan, Qiming Zhu
  • Publication number: 20150117349
    Abstract: A gateway turns encrypted PS data traffic on the Iub interface into clear IP packets so that WAN stream de-duplication and other optimization can be performed to eliminate the transfer of repetitive data across the Iub interface, thereby increasing the throughput between the NodeB and the RNC of the WCDMA network. The gateway pulls PS data traffic out from Iub without disturbing the signaling and CS traffic. The bifurcated PS data traffic is redirected to the GTP I/O port of the gateway where the stream de-duplication is applied. Deployment of the gateway is transparent to the WCDMA network. No network reconfiguration is required to deploy the gateway on the Iub interface.
    Type: Application
    Filed: May 1, 2013
    Publication date: April 30, 2015
    Applicant: Parallel Limited
    Inventors: Michael Godley, Richard Lord, Edmond Higgins, QiMing Zhu, Siu Bun Chan, Ian Walter
  • Publication number: 20140044116
    Abstract: In one embodiment, a wireless system comprises a host MSC/VLR of a public land mobile network (PLMN) and a plurality of base station subsystems (BSSs). Each BSS includes a respective base station controller (BSC) and one or more base transceiver stations (BTSs). The wireless system further comprises a virtual base station controller (VBSC) communicatively coupled to the plurality of BSSs and the host MSC/VLR. The VBSC appears, from the perspective of the host MSCNLR, to be a base station controller for the BTSs in the plurality of BSSs. The VBSC and at least some of the BSSs include functionality for locally switching calls in the BSSs.
    Type: Application
    Filed: October 15, 2013
    Publication date: February 13, 2014
    Inventors: Dan Schmidt, Siu Bun Chan, Qiming Zhu
  • Patent number: 8559949
    Abstract: In one embodiment, a wireless system comprises a host MSC/VLR of a public land mobile network (PLMN) and a plurality of base station subsystems (BSSs). Each BSS includes a respective base station controller (BSC) and one or more base transceiver stations (BTSs). The wireless system further comprises a virtual base station controller (VBSC) communicatively coupled to the plurality of BSSs and the host MSC/VLR. The VBSC appears, from the perspective of the host MSC/VLR, to be a base station controller for the BTSs in the plurality of BSSs. The VBSC and at least some of the BSSs include functionality for locally switching calls in the BSSs.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: October 15, 2013
    Assignee: Altobridge Limited
    Inventors: Robert D. Schmidt, Siu Bun Chan, Qiming Zhu
  • Patent number: 8472946
    Abstract: Some embodiments include a method for providing roaming service for a wireless device of a person that is both a prepaid subscriber of a local network and a subscriber of a home network with which the local network has a roaming agreement. Other embodiments of related systems and methods are also disclosed.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: June 25, 2013
    Assignee: Altobridge Limited
    Inventors: Siu Bun Chan, Hong Bin Liang, Xin Yu Yan
  • Patent number: 8229393
    Abstract: In one embodiment, a private cellular system provides private cellular service and public cellular service using licensed frequency spectrum associated with a public land mobile network (PLMN). The system is configured to have a predetermined phone number that a subscriber who is using the public cellular service via the private cellular system and who is not registered to use the private cellular service provided by the system can call in order to register to use the private cellular service provided by the system and, in response thereto, the system captures a subscriber identity number associated with the subscriber and assigns a private telephone number to the subscriber that is used in connection with providing private cellular service. Another embodiment is directed to a method of enabling a prepaid hybrid subscriber to make a call using a private cellular system while outside of a coverage area associated with the private cellular system.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: July 24, 2012
    Assignee: Altobridge Limited
    Inventors: Siu Bun Chan, Hong Bin Liang, Min Ying
  • Publication number: 20100330955
    Abstract: In one embodiment, a private cellular system provides private cellular service and public cellular service using licensed frequency spectrum associated with a public land mobile network (PLMN). The system is configured to have a predetermined phone number that a subscriber who is using the public cellular service via the private cellular system and who is not registered to use the private cellular service provided by the system can call in order to register to use the private cellular service provided by the system and, in response thereto, the system captures a subscriber identity number associated with the subscriber and assigns a private telephone number to the subscriber that is used in connection with providing private cellular service. Another embodiment is directed to a method of enabling a prepaid hybrid subscriber to make a call using a private cellular system while outside of a coverage area associated with the private cellular system.
    Type: Application
    Filed: June 26, 2009
    Publication date: December 30, 2010
    Applicant: ADC TELECOMMUNICATIONS, INC.
    Inventors: Siu Bun Chan, Hong Bin Liang, Min Ying
  • Publication number: 20100261478
    Abstract: In one embodiment, a wireless system comprises a host MSC/VLR of a public land mobile network (PLMN) and a plurality of base station subsystems (BSSs). Each BSS includes a respective base station controller (BSC) and one or more base transceiver stations (BTSs). The wireless system further comprises a virtual base station controller (VBSC) communicatively coupled to the plurality of BSSs and the host MSC/VLR. The VBSC appears, from the perspective of the host MSC/VLR, to be a base station controller for the BTSs in the plurality of BSSs. The VBSC and at least some of the BSSs include functionality for locally switching calls in the BSSs.
    Type: Application
    Filed: January 5, 2010
    Publication date: October 14, 2010
    Inventors: Robert D. Schmidt, Siu Bun Chan, Qiming Zhu
  • Publication number: 20100093344
    Abstract: In one embodiment, a wireless communication system provides wireless cellular service to wireless devices located within at least one coverage area associated with the wireless communication system. The wireless communication system comprising a register function to maintain information about the wireless devices that are located in the at least one coverage area, and a switching function to perform switching in connection with providing wireless cellular service to the wireless devices. The wireless communication system is connected to a plurality of first home public land mobile networks. The switching function and the register function are configured to function as an extension of each of the plurality of first home public land mobile networks when providing wireless service to wireless devices that are associated with the respective first home public land mobile network.
    Type: Application
    Filed: October 14, 2008
    Publication date: April 15, 2010
    Applicant: ADC TELECOMMUNICATIONS, INC.
    Inventors: Siu Bun Chan, Min Ying, Hong Bin Liang
  • Publication number: 20100056102
    Abstract: In one embodiment, a method for providing roaming service comprises receiving an identifier from a wireless device located within a coverage area of a local network, wherein the identifier is associated with the wireless device. The method further comprises determining if the wireless device is associated with a person that is both a prepaid subscriber of the local network and a subscriber of a home network with which the local network has a roaming arrangement.
    Type: Application
    Filed: August 27, 2008
    Publication date: March 4, 2010
    Inventors: Siu Bun Chan, Hong Bin Liang, Xin Yu Yan