Patents by Inventor Chenhong Huang

Chenhong Huang 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: 7805139
    Abstract: A wireless communication system facilitates communication with subscribing units within a respective service area that supports at least one communication protocol revision. The system communicates with a subscribing unit operating within a respective service area to determine the communication protocol revisions supported by the subscribing unit. Subsequently, the subscribing unit and base station communicate according to a supported communication protocol revision. The base station and subscribing unit further communicate to indicate extended services supported by the subscribing unit and the methods of delivering the extended services to the subscribing unit. The extended services include caller line ID, message waiting indications and short message services among other extended services. In addition to a base station, the wireless communication system may include a mobile switching center that is in communication with the base station.
    Type: Grant
    Filed: July 12, 2009
    Date of Patent: September 28, 2010
    Assignee: Ericsson AB
    Inventors: Kamel M. Shaheen, Girish Patel, Chenhong Huang, Mark R. O'Brien
  • Publication number: 20090275330
    Abstract: A wireless communication system facilitates communication with subscribing units within a respective service area that supports at least one communication protocol revision. The system communicates with a subscribing unit operating within a respective service area to determine the communication protocol revisions supported by the subscribing unit. Subsequently, the subscribing unit and base station communicate according to a supported communication protocol revision. The base station and subscribing unit further communicate to indicate extended services supported by the subscribing unit and the methods of delivering the extended services to the subscribing unit. The extended services include caller line ID, message waiting indications and short message services among other extended services. In addition to a base station, the wireless communication system may include a mobile switching center that is in communication with the base station.
    Type: Application
    Filed: July 12, 2009
    Publication date: November 5, 2009
    Applicant: NORTEL NETWORKS LIMITED
    Inventors: KAMEL M. SHAHEEN, CHENHONG HUANG, GIRISH PATEL, MARK R. O'BRIEN
  • Patent number: 7580707
    Abstract: A wireless communication system facilitates communication with subscribing units within a respective service area and supports at least one communication protocol revision. The system communicates with a subscribing unit operating within a respective service area to determine the communication protocol revisions supported by the subscribing unit. Subsequently, the subscribing unit and base station communicate according to a supported communication protocol revision. The base station and subscribing unit may further communicate to indicate extended services supported by the subscribing unit and the methods of delivering the extended services to the subscribing unit. The extended services may include caller line ID, message waiting indications and short message services among other extended services. In addition to a base station, the wireless communication system may include a mobile switching center that is in communication with the base station.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: August 25, 2009
    Assignee: Nortel Networks Limited
    Inventors: Kamel M. Shaheen, Chenhong Huang, Girish Patel, Mark R. O'Brien
  • Publication number: 20050048969
    Abstract: A wireless communication system facilitates communication within subscribing units within a respective service area, supports at least one communication protocol revision. The system communicates with a subscribing unit operating within a respective service area to determine the communication protocol revisions supported by the subscribing unit. Subsequently, the subscribing unit and base station communicate according to a supported communication protocol revision. The base station and subscribing unit may further communicate to indicate extended services supported by the subscribing unit and the methods of delivering the extended services to the subscribing unit. The extended services may include caller line ID, message waiting indications and short message services among other extended services. In addition to a base station, the wireless communication system may include a mobile switching center that is in communication with the base station.
    Type: Application
    Filed: October 12, 2004
    Publication date: March 3, 2005
    Inventors: Kamel Shaheen, Chenhong Huang, Girish Patel, Mark O'Brien
  • Patent number: 6549771
    Abstract: An improved method for programming a mobile telephone over the air within a mobile telephone communication network is disclosed. The mobile telephone communication network includes an over-the-air function, a customer service center, a mobile switching center, a base station controller, and multiple base transceiver stations. The over-the-air function, using the mobile switching center, the base station controller, and one of the base transceiver stations for transport, initially sends a request over the air to a mobile telephone within the mobile telephone communication network to interrogate the mobile telephone's protocol capability. In response to the request, the mobile telephone sends a protocol capability response message over the air back to the over-the-air function. The protocol capability response message includes a BAND_MODE_CAP field that describes the band and mode capability information of the mobile telephone.
    Type: Grant
    Filed: April 17, 2001
    Date of Patent: April 15, 2003
    Assignee: Nortel Networks Ltd.
    Inventors: Kim Chang, Chenhong Huang, Robert E. Denman
  • Patent number: 6498790
    Abstract: A time division multiple access cellular communication system supports a packet channel is alterable between a packet control channel configuration and a packet traffic channel configuration. In the packet control channel configuration, the packet channel may provide only control functions or a combination of control and traffic functions. The packet channel may also be configured in a packet traffic configuration so that the packet channel provides only packet traffic functions. In this configuration, another packet channel must be configured in the packet control channel configuration to provide control functions for the packet traffic only packet channel. A Digital Control Channel (DCCH) includes information relating to a Beacon Packet Control Channel (PCCH), which contains information on the allocated packet channels. The subscriber unit initiates its packet data operations within the system.
    Type: Grant
    Filed: September 21, 1998
    Date of Patent: December 24, 2002
    Assignee: Nortel Networks Ltd.
    Inventors: Kamel M. Shaheen, Akbar Rahman, Chenhong Huang
  • Patent number: 6438369
    Abstract: The present invention relates to a cellular and PCS enhanced roaming arrangement for assuring that a roaming mobile station is serviced outside its home service market be a preferred service provider. A mobile station outside its home market, when attempting to register or initiate a call, will attempt to connect to a remote service provider in the geographic region where it is located in the same manner as it would in the home market. The remote service provider will contact the home service provider seeking, among other things, service information and account status. In the event that the home service provider has more favorable arrangements with another service provider in the geographic region where the mobile station is located, the home service provider will transmit redirection instructions to the remote service provider which is transmitted to the mobile station.
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: August 20, 2002
    Assignee: Nortel Networks Ltd.
    Inventors: Chenhong Huang, Kim T. Chang, Girish Patel
  • Patent number: 6374109
    Abstract: A wireless communication system facilitates wireless communication with a subscribing unit operating within a respective service area. At least one base station supports wireless communication within the service area in a plurality of frequency bands and according to a plurality of communication protocols. In a broadcast message, a transmitting base station indicates to the subscribing unit the plurality of frequency bands and the plurality of communication protocols available. The subscribing unit receives the broadcast message and communicates with the base station on one of the plurality of frequency bands according to one of the plurality of communication protocols. In another embodiment, the system includes a plurality of base stations providing overlying coverage within the service area. In such systems, multiple broadcast message may provide information regarding the overlying coverage provided.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: April 16, 2002
    Assignee: Nortel Networks Ltd.
    Inventors: Kamel M. Shaheen, Chenhong Huang
  • Patent number: 6363251
    Abstract: The present invention relates to a cellular and PCS enhanced roaming arrangement for assuring that a roaming mobile station is serviced outside its home service market be a preferred service provider. A mobile station outside its home market, when attempting to register or initiate a call, will attempt to connect to a remote service provider in the geographic region where it is located in the same manner as it would in the home market. The remote service provider will contact the home service provider seeking, among other things, service information and account status. In the event that the home service provider has more favorable arrangements with another service provider in the geographic region where the mobile station is located, the home service provider will transmit redirection instructions to the remote service provider which is transmitted to the mobile station.
    Type: Grant
    Filed: March 29, 2000
    Date of Patent: March 26, 2002
    Assignee: Nortel Networks LTD
    Inventors: Chenhong Huang, Kim T. Chang, Girish Patel
  • Publication number: 20020028673
    Abstract: An improved method for programming a mobile telephone over the air within a mobile telephone communication network is disclosed. The mobile telephone communication network includes an over-the-air function, a customer service center, a mobile switching center, a base station controller, and multiple base transceiver stations. The over-the-air function, using the mobile switching center, the base station controller, and one of the base transceiver stations for transport, initially sends a request over the air to a mobile telephone within the mobile telephone communication network to interrogate the mobile telephone's protocol capability. In response to the request, the mobile telephone sends a protocol capability response message over the air back to the over-the-air function. The protocol capability response message includes a BAND_MODE_CAP field that describes the band and mode capability information of the mobile telephone.
    Type: Application
    Filed: April 17, 2001
    Publication date: March 7, 2002
    Inventors: Kim Chang, Chenhong Huang, Robert E. Denman
  • Patent number: 6285881
    Abstract: The method of quickly locating non-standard control channels in private cellular systems is accomplished in an embodiment of the present invention by determining the modulation type of a particular channel. The mobile station scans a received RF channel. The received signal is used for the evaluation of the modulation type of that channel by using matched filters designed for the specific signal of interest, and/or in another embodiment of the present invention is used for producing the spectral energy distribution of the channel revealing the type of modulation.
    Type: Grant
    Filed: September 13, 1996
    Date of Patent: September 4, 2001
    Assignee: Northern Telecom Ltd.
    Inventor: Chenhong Huang
  • Patent number: 6223028
    Abstract: An improved method for programming a mobile telephone over the air within a mobile telephone communication network is disclosed. The mobile telephone communication network includes an over-the-air function, a customer service center, a mobile switching center, a base station controller, and multiple base transceiver stations. The over-the-air function, using the mobile switching center, the base station controller, and one of the base transceiver stations for transport, initially sends a request over the air to a mobile telephone within the mobile telephone communication network to interrogate the mobile telephone's protocol capability. In response to the request, the mobile telephone sends a protocol capability response message over the air back to the over-the-air function. The protocol capability response message includes a BAND_MODE_CAP field that describes the band and mode capability information of the mobile telephone.
    Type: Grant
    Filed: March 17, 1998
    Date of Patent: April 24, 2001
    Assignee: Nortel Networks LTD
    Inventors: Kim Chang, Chenhong Huang, Robert E. Denman
  • Patent number: 6219539
    Abstract: A communications system includes a dual mode mobile station and a home base station. Dual mode mobile station is operable selectively in CDMA and analog modes. Home base station includes circuitry for establishing wireless communications with mobile station in the analog mode, and circuitry for establishing communications with a wireline communications system, the base station allowing an exchange of information between mobile station and wireline system in the analog mode.
    Type: Grant
    Filed: April 8, 1997
    Date of Patent: April 17, 2001
    Assignee: Nortel Networks Corporation
    Inventors: Kalyan Basu, Girish Patel, Chenhong Huang
  • Patent number: 6169893
    Abstract: A wireless communication system facilitates communication with subscribing units within a respective service area and supports at least one communication protocol revision. The system communicates with a subscribing unit operating within a respective service area to determine the communication protocol revisions supported by the subscribing unit. Subsequently, the subscribing unit and base station communicate according to a supported communication protocol revision. The base station and subscribing unit may further communicate to indicate extended services supported by the subscribing unit and the methods of delivering the extended services to the subscribing unit. The extended services may include caller line ID, message waiting indications and short message services among other extended services. In addition to a base station, the wireless communication system may include a mobile switching center that is in communication with the base station.
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: January 2, 2001
    Assignee: Nortel Networks Limited
    Inventors: Kamel M. Shaheen, Chenhong Huang, Girish Patel, Mark R. O'Brien
  • Patent number: 6128490
    Abstract: A wireless communication system facilitates wireless communication with a subscribing unit operating within a respective service area. At least one base station supports wireless communication within the service area in a plurality of frequency bands and according to a plurality of communication protocols. In a broadcast message, a transmitting base station indicates to the subscribing unit the plurality of frequency bands and the plurality of communication protocols available. The subscribing unit receives the broadcast message and communicates with the base station on one of the plurality of frequency bands according to one of the plurality of communication protocols. In another embodiment, the system includes a plurality of base stations providing overlying coverage within the service area. In such systems, multiple broadcast message may provide information regarding the overlying coverage provided.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: October 3, 2000
    Assignee: Nortel Networks Limited
    Inventors: Kamel M. Shaheen, Chenhong Huang
  • Patent number: 6058309
    Abstract: The present invention relates to a cellular and PCS enhanced roaming arrangement for assuring that a roaming mobile station is serviced outside its home service market be a preferred service provider. A mobile station outside its home market, when attempting to register or initiate a call, will attempt to connect to a remote service provider in the geographic region where it is located in the same manner as it would in the home market. The remote service provider will contact the home service provider seeking, among other things, service information and account status. In the event that the home service provider has more favorable arrangements with another service provider in the geographic region where the mobile station is located, the home service provider will transmit redirection instructions to the remote service provider which is transmitted to the mobile station.
    Type: Grant
    Filed: August 9, 1996
    Date of Patent: May 2, 2000
    Assignee: Nortel Networks Corporation
    Inventors: Chenhong Huang, Kim T. Chang, Girish Patel
  • Patent number: 5896411
    Abstract: An enhanced mechanism for the reverse link power control in a wireless communication system, especially for high speed data applications and fixed wireless communication applications, dynamically adjusts the power control step size of the reverse link power control. The power control step size is dynamically adjusted based on various factors including types of service, number of reverse supplemental code channels, total received power at the base station, estimated diversity gain and required mobility, among others. The system which includes stationary infrastructure, can query a subscriber unit's capability in the support of a pre-defined set of power control step sizes before assigning it to the subscriber unit. Furthermore, the subscriber unit may decide its optimized power control step size based on certain feedbacks from the system.
    Type: Grant
    Filed: December 26, 1997
    Date of Patent: April 20, 1999
    Assignee: Northern Telecom Limited
    Inventors: Farhan Ali, Alberto Gutierrez, Kim Chang, Chenhong Huang, Serge Manning
  • Patent number: 5794147
    Abstract: The method of quickly locating non-standard control channels in private cellular systems is accomplished in an embodiment of the present invention by determining the modulation type of a particular channel. The mobile station scans a received RF channel. The received signal is used for the evaluation of the modulation type of that channel by using matched filters designed for the specific signal of interest, and/or in another embodiment of the present invention is used for producing the spectral energy distribution of the channel revealing the type of modulation.
    Type: Grant
    Filed: September 13, 1996
    Date of Patent: August 11, 1998
    Assignee: Northern Telecom Limited
    Inventor: Chenhong Huang