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).
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Patent number: 7805139Abstract: 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: GrantFiled: July 12, 2009Date of Patent: September 28, 2010Assignee: Ericsson ABInventors: Kamel M. Shaheen, Girish Patel, Chenhong Huang, Mark R. O'Brien
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Publication number: 20090275330Abstract: 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: ApplicationFiled: July 12, 2009Publication date: November 5, 2009Applicant: NORTEL NETWORKS LIMITEDInventors: KAMEL M. SHAHEEN, CHENHONG HUANG, GIRISH PATEL, MARK R. O'BRIEN
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Patent number: 7580707Abstract: 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: GrantFiled: October 12, 2004Date of Patent: August 25, 2009Assignee: Nortel Networks LimitedInventors: Kamel M. Shaheen, Chenhong Huang, Girish Patel, Mark R. O'Brien
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Publication number: 20050048969Abstract: 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: ApplicationFiled: October 12, 2004Publication date: March 3, 2005Inventors: Kamel Shaheen, Chenhong Huang, Girish Patel, Mark O'Brien
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Patent number: 6549771Abstract: 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: GrantFiled: April 17, 2001Date of Patent: April 15, 2003Assignee: Nortel Networks Ltd.Inventors: Kim Chang, Chenhong Huang, Robert E. Denman
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Patent number: 6498790Abstract: 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: GrantFiled: September 21, 1998Date of Patent: December 24, 2002Assignee: Nortel Networks Ltd.Inventors: Kamel M. Shaheen, Akbar Rahman, Chenhong Huang
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Patent number: 6438369Abstract: 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: GrantFiled: December 14, 1999Date of Patent: August 20, 2002Assignee: Nortel Networks Ltd.Inventors: Chenhong Huang, Kim T. Chang, Girish Patel
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Patent number: 6374109Abstract: 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: GrantFiled: July 31, 2000Date of Patent: April 16, 2002Assignee: Nortel Networks Ltd.Inventors: Kamel M. Shaheen, Chenhong Huang
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Patent number: 6363251Abstract: 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: GrantFiled: March 29, 2000Date of Patent: March 26, 2002Assignee: Nortel Networks LTDInventors: Chenhong Huang, Kim T. Chang, Girish Patel
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Publication number: 20020028673Abstract: 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: ApplicationFiled: April 17, 2001Publication date: March 7, 2002Inventors: Kim Chang, Chenhong Huang, Robert E. Denman
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Patent number: 6285881Abstract: 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: GrantFiled: September 13, 1996Date of Patent: September 4, 2001Assignee: Northern Telecom Ltd.Inventor: Chenhong Huang
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Patent number: 6223028Abstract: 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: GrantFiled: March 17, 1998Date of Patent: April 24, 2001Assignee: Nortel Networks LTDInventors: Kim Chang, Chenhong Huang, Robert E. Denman
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Patent number: 6219539Abstract: 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: GrantFiled: April 8, 1997Date of Patent: April 17, 2001Assignee: Nortel Networks CorporationInventors: Kalyan Basu, Girish Patel, Chenhong Huang
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Patent number: 6169893Abstract: 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: GrantFiled: December 31, 1997Date of Patent: January 2, 2001Assignee: Nortel Networks LimitedInventors: Kamel M. Shaheen, Chenhong Huang, Girish Patel, Mark R. O'Brien
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Patent number: 6128490Abstract: 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: GrantFiled: December 19, 1997Date of Patent: October 3, 2000Assignee: Nortel Networks LimitedInventors: Kamel M. Shaheen, Chenhong Huang
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Patent number: 6058309Abstract: 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: GrantFiled: August 9, 1996Date of Patent: May 2, 2000Assignee: Nortel Networks CorporationInventors: Chenhong Huang, Kim T. Chang, Girish Patel
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Patent number: 5896411Abstract: 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: GrantFiled: December 26, 1997Date of Patent: April 20, 1999Assignee: Northern Telecom LimitedInventors: Farhan Ali, Alberto Gutierrez, Kim Chang, Chenhong Huang, Serge Manning
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Patent number: 5794147Abstract: 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: GrantFiled: September 13, 1996Date of Patent: August 11, 1998Assignee: Northern Telecom LimitedInventor: Chenhong Huang