Patents by Inventor Huanqiang Zhang
Huanqiang Zhang 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: 8990663Abstract: A method and apparatus are described for protecting real time media including receiving media packets, generating media bit strings from the media packets, applying a forward error correcting code across the generated media bit strings to generate at least one forward error correcting bit string and generating at least one forward error correcting packet from the at least one forward error correcting bit string. Also described are a method and apparatus for recovering from losses of real time media packets including forming media bit strings from received media packets, forming forward error correcting bit strings from received forward error correcting packets, decoding the formed media bit strings and forward error correcting bit strings to obtain recovered media bit strings and recover lost media packets from the recovered media bit strings. Further described is a data structure for a forward error correcting header on computer readable media.Type: GrantFiled: December 21, 2006Date of Patent: March 24, 2015Assignee: Thomson LicensingInventors: Hang Liu, Mary-Luc Champel, Mingquan Wu, Xiaojun Ma, Huanqiang Zhang, Jun Li
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Patent number: 8924808Abstract: A method and apparatus are described including determining address using an access point address and a multicast group address, transmitting a recovery request message to a recovery server to request recovery data using the address and receiving the recovery data from the recovery server. Also described are a method and apparatus including receiving a registration message, transmitting a reply to the registration message, receiving a recovery request message, transmitting recovery data responsive to the recovery request message and transmitting a message to a recovery multicast group to determine status of the recovery multicast group.Type: GrantFiled: July 30, 2013Date of Patent: December 30, 2014Assignee: Thomson LicensingInventors: Hang Liu, Huanqiang Zhang, Xiao-jun Ma, Mingquan Wu, Jun Li
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Patent number: 8924809Abstract: A method and apparatus are described including determining address using an access point address and a multicast group address, transmitting a recovery request message to a recovery server to request recovery data using the address and receiving the recovery data from the recovery server. Also described are a method and apparatus including receiving a registration message, transmitting a reply to the registration message, receiving a recovery request message, transmitting recovery data responsive to the recovery request message and transmitting a message to a recovery multicast group to determine status of the recovery multicast group.Type: GrantFiled: August 20, 2014Date of Patent: December 30, 2014Assignee: Thomson LicensingInventors: Hang Liu, Huanqiang Zhang, Xiao-jun Ma, Mingquan Wu, Jun Li
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Publication number: 20140355411Abstract: A method and apparatus are described including determining address using an access point address and a multicast group address, transmitting a recovery request message to a recovery server to request recovery data using the address and receiving the recovery data from the recovery server. Also described are a method and apparatus including receiving a registration message, transmitting a reply to the registration message, receiving a recovery request message, transmitting recovery data responsive to the recovery request message and transmitting a message to a recovery multicast group to determine status of the recovery multicast group.Type: ApplicationFiled: August 20, 2014Publication date: December 4, 2014Inventors: Hang LIU, Huanqiang ZHANG, Xiao-jun MA, Mingquan WU, Jun LI
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Patent number: 8737425Abstract: A method and apparatus are described for gaining access to a communication medium in a contention-based network, including determining a slot count based on a number of stations in the contention-based network, adjusting the slot count, initiating a frame transmission when the slot count reaches a predetermined value and wherein said number of stations and an address queue are adjusted to reflect one of a priority and traffic patterns. Further, a method and apparatus are described for gaining access to a communication medium in a contention-based network, including receiving a slot count based on a number of stations in the contention-based network, adjusting the slot count, initiating a frame transmission when the slot count reaches a predetermined value and wherein said number of stations and an address queue are adjusted to reflect a priority.Type: GrantFiled: June 22, 2007Date of Patent: May 27, 2014Assignee: Thomson LicensingInventors: Charles Chunaming Wang, Jun Li, Huanqiang Zhang, Zhigang Zhang, Xiao-Jun Ma, Yong He
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Patent number: 8693380Abstract: A method and apparatus for improving power performance of a wireless adapter which adopts a time slicing scheme by dividing a beacon interval into multiple slices, and assigning these slices to the stations through the beacon frame. The stations wakeup at the appointed slices to receive their buffered frames from an access point, and may enter into sleep state once the transactions conclude. A further embodiment including formatting data into a control frame for use in a wireless local area network, the frame including an indication, for each station associated with the wireless local area network, whether frames are buffered awaiting transmission to each respective station, a number of time intervals between control frames, and at which time interval the transmission of the buffered frames will begin for each station having buffered frames awaiting transmission.Type: GrantFiled: February 27, 2007Date of Patent: April 8, 2014Assignee: Thomson LicensingInventors: Yong He, Xiaojun Ma, Huanqiang Zhang, Jun Li, Charles Chuanming Wang
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Cell dependent multi-group hybrid automatic repeat request method for multicast in wireless networks
Patent number: 8656241Abstract: A method and apparatus are described including determining address using an access point address and a multicast group address, transmitting a recovery request message to a recovery server to request recovery data using the address and receiving the recovery data from the recovery server. Also described are a method and apparatus including receiving a registration message, transmitting a reply to the registration message, receiving a recovery request message, transmitting recovery data responsive to the recovery request message and transmitting a message to a recovery multicast group to determine status of the recovery multicast group.Type: GrantFiled: May 27, 2009Date of Patent: February 18, 2014Assignee: Thomson LicensingInventors: Hang Liu, Huanqiang Zhang, Xiao-jun Ma, Mingquan Wu, Jun Li -
Publication number: 20130315126Abstract: A method and apparatus are described including determining address using an access point address and a multicast group address, transmitting a recovery request message to a recovery server to request recovery data using the address and receiving the recovery data from the recovery server. Also described are a method and apparatus including receiving a registration message, transmitting a reply to the registration message, receiving a recovery request message, transmitting recovery data responsive to the recovery request message and transmitting a message to a recovery multicast group to determine status of the recovery multicast group.Type: ApplicationFiled: July 30, 2013Publication date: November 28, 2013Applicant: Thomson LicensingInventors: Hang LIU, Huanqiang ZHANG, Xiao-jun MA, Mingquan WU, Jun LI
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Patent number: 7944940Abstract: A method and apparatus are described for gaining access to a communication medium in a contention-based network, including determining a slot count based on a number of stations in the contention-based network, adjusting the slot count, initiating a frame transmission when the slot count reaches a predetermined value and wherein said number of stations and an address queue are adjusted to reflect a priority. Further, a method and apparatus are described for gaining access to a communication medium in a contention-based network, including receiving a slot count based on a number of stations in the contention-based network, adjusting the slot count, initiating a frame transmission when the slot count reaches a predetermined value and wherein said number of stations and an address queue are adjusted to reflect a priority.Type: GrantFiled: June 22, 2007Date of Patent: May 17, 2011Assignee: Thomson LicensingInventors: Xiao-Jun Ma, Yong He, Zhigang Zhang, Huanqiang Zhang, Jun Li, Charles Chunaming Wang
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CELL DEPENDENT MULTI-GROUP HYBRID AUTOMATIC REPEAT REQUEST METHOD FOR MULTICAST IN WIRELESS NETWORKS
Publication number: 20110083035Abstract: A method and apparatus are described including determining address using an access point address and a multicast group address, transmitting a recovery request message to a recovery server to request recovery data using the address and receiving the recovery data from the recovery server. Also described are a method and apparatus including receiving a registration message, transmitting a reply to the registration message, receiving a recovery request message, transmitting recovery data responsive to the recovery request message and transmitting a message to a recovery multicast group to determine status of the recovery multicast group.Type: ApplicationFiled: May 27, 2009Publication date: April 7, 2011Inventors: Hang Liu, Huanqiang Zhang, Xiao-jun Ma, Mingquan Wu, Jun Li -
Publication number: 20100189021Abstract: A method and apparatus for improving power performance of a wireless adapter which adopts a time slicing scheme by dividing a beacon interval into multiple slices, and assigning these slices to the stations through the beacon frame. The stations wakeup at the appointed slices to receive their buffered frames from an access point, and may enter into sleep state once the transactions conclude. A further embodiment including formatting data into a control frame for use in a wireless local area network, the frame including an indication, for each station associated with the wireless local area network, whether frames are buffered awaiting transmission to each respective station, a number of time intervals between control frames, and at which time interval the transmission of the buffered frames will begin for each station having buffered frames awaiting transmission.Type: ApplicationFiled: February 27, 2007Publication date: July 29, 2010Applicant: THOMSON BROADBAND R & D (BEIJING) COL. LTD.Inventors: Yong He, Xiaojun Ma, Huanqiang Zhang, Jun Li, Charles Chuanming Wang
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Publication number: 20100135167Abstract: A method and apparatus are described for gaining access to a communication medium in a contention-based network, including determining a slot count based on a number of stations in the contention-based network, adjusting the slot count, initiating a frame transmission when the slot count reaches a predetermined value and wherein said number of stations and an address queue are adjusted to reflect a priority. Further, a method and apparatus are described for gaining access to a communication medium in a contention-based network, including receiving a slot count based on a number of stations in the contention-based network, adjusting the slot count, initiating a frame transmission when the slot count reaches a predetermined value and wherein said number of stations and an address queue are adjusted to reflect a priority.Type: ApplicationFiled: June 22, 2007Publication date: June 3, 2010Inventors: Xiao-Jun Ma, Yong He, Zhigang Zhang, Huanqiang Zhang, Jun Li, Charles Chunaming Wang
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Publication number: 20100135319Abstract: A method and apparatus are described for gaining access to a communication medium in a contention-based network, including determining a slot count based on a number of stations in the contention-based network, adjusting the slot count, initiating a frame transmission when the slot count reaches a predetermined value and wherein said number of stations and an address queue are adjusted to reflect one of a priority and traffic patterns. Further, a method and apparatus are described for gaining access to a communication medium in a contention-based network, including receiving a slot count based on a number of stations in the contention-based network, adjusting the slot count, initiating a frame transmission when the slot count reaches a predetermined value and wherein said number of stations and an address queue are adjusted to reflect a priority.Type: ApplicationFiled: June 22, 2007Publication date: June 3, 2010Inventors: Charles Chunaming Wang, Jun Li, Huanqiang Zhang, Zhigang Zhang, Xiao-Jun Ma, Yong He
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Publication number: 20090276686Abstract: A method and apparatus are described for protecting real time media including receiving media packets, generating media bit strings from the media packets, applying a forward error correcting code across the generated media bit strings to generate at least one forward error correcting bit string and generating at least one forward error correcting packet from the at least one forward error correcting bit string. Also described are a method and apparatus for recovering from losses of real time media packets including forming media bit strings from received media packets, forming forward error correcting bit strings from received forward error correcting packets, decoding the formed media bit strings and forward error correcting bit strings to obtain recovered media bit strings and recover lost media packets from the recovered media bit strings. Further described is a data structure for a forward error correcting header on computer readable media.Type: ApplicationFiled: December 21, 2006Publication date: November 5, 2009Inventors: Hang Liu, Mary-Luc Champel, Mingquan Wu, Xiaojun Ma, Huanqiang Zhang, Jun Li