Patents by Inventor Danjie Pan
Danjie Pan 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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Publication number: 20240089040Abstract: Methods and apparatus are described for mitigating intercell interference in wireless communication systems utilizing substantially the same operating frequency band across multiple neighboring coverage areas. The operating frequency band may be shared across multiple neighboring or otherwise adjacent cells, such as in a frequency reuse one configuration. The wireless communication system can synchronize one or more resource allocation regions or zones across the multiple base stations, and can coordinate a permutation type within each resource allocation zone. The base stations can coordinate a pilot configuration in each of a plurality of coordinated resource allocation regions. Subscriber stations can be assigned resources in a coordinated resource allocation region based on interference levels. A subscriber station can determine a channel estimate for each of multiple base stations in the coordinated resource allocation region to mitigate interference.Type: ApplicationFiled: November 20, 2023Publication date: March 14, 2024Applicant: Wi-LAN Inc.Inventors: Hari SANKAR, Ron Porat, Danjie Pan, Wee Peng Goh, Srikanth Gummadi, Lei Wang
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Patent number: 11824800Abstract: Methods and apparatus are described for mitigating intercell interference in wireless communication systems utilizing substantially the same operating frequency band across multiple neighboring coverage areas. The operating frequency band may be shared across multiple neighboring or otherwise adjacent cells, such as in a frequency reuse one configuration. The wireless communication system can synchronize one or more resource allocation regions or zones across the multiple base stations, and can coordinate a permutation type within each resource allocation zone. The base stations can coordinate a pilot configuration in each of a plurality of coordinated resource allocation regions. Subscriber stations can be assigned resources in a coordinated resource allocation region based on interference levels. A subscriber station can determine a channel estimate for each of multiple base stations in the coordinated resource allocation region to mitigate interference.Type: GrantFiled: April 19, 2021Date of Patent: November 21, 2023Assignee: Wi-LAN Inc.Inventors: Hari Sankar, Ron Porat, Danjie Pan, Wee Peng Goh, Srikanth Gummadi, Lei Wang
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Publication number: 20210242986Abstract: Methods and apparatus are described for mitigating intercell interference in wireless communication systems utilizing substantially the same operating frequency band across multiple neighboring coverage areas. The operating frequency band may be shared across multiple neighboring or otherwise adjacent cells, such as in a frequency reuse one configuration. The wireless communication system can synchronize one or more resource allocation regions or zones across the multiple base stations, and can coordinate a permutation type within each resource allocation zone. The base stations can coordinate a pilot configuration in each of a plurality of coordinated resource allocation regions. Subscriber stations can be assigned resources in a coordinated resource allocation region based on interference levels. A subscriber station can determine a channel estimate for each of multiple base stations in the coordinated resource allocation region to mitigate interference.Type: ApplicationFiled: April 19, 2021Publication date: August 5, 2021Applicant: Wi-LAN Inc.Inventors: Hari Sankar, Ron Porat, Danjie Pan, Wee Peng Goh, Srikanth Gummadi, Lei Wang
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Patent number: 10985881Abstract: Methods and apparatus are described for mitigating intercell interference in wireless communication systems utilizing substantially the same operating frequency band across multiple neighboring coverage areas. The operating frequency band may be shared across multiple neighboring or otherwise adjacent cells, such as in a frequency reuse one configuration. The wireless communication system can synchronize one or more resource allocation regions or zones across the multiple base stations, and can coordinate a permutation type within each resource allocation zone. The base stations can coordinate a pilot configuration in each of a plurality of coordinated resource allocation regions. Subscriber stations can be assigned resources in a coordinated resource allocation region based on interference levels. A subscriber station can determine a channel estimate for each of multiple base stations in the coordinated resource allocation region to mitigate interference.Type: GrantFiled: July 8, 2019Date of Patent: April 20, 2021Assignee: WI-LAN INC.Inventors: Hari Sankar, Ron Porat, Danjie Pan, Wee Peng Goh, Srikanth Gummadi, Lei Wang
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Publication number: 20190334667Abstract: Methods and apparatus are described for mitigating intercell interference in wireless communication systems utilizing substantially the same operating frequency band across multiple neighboring coverage areas. The operating frequency band may be shared across multiple neighboring or otherwise adjacent cells, such as in a frequency reuse one configuration. The wireless communication system can synchronize one or more resource allocation regions or zones across the multiple base stations, and can coordinate a permutation type within each resource allocation zone. The base stations can coordinate a pilot configuration in each of a plurality of coordinated resource allocation regions. Subscriber stations can be assigned resources in a coordinated resource allocation region based on interference levels. A subscriber station can determine a channel estimate for each of multiple base stations in the coordinated resource allocation region to mitigate interference.Type: ApplicationFiled: July 8, 2019Publication date: October 31, 2019Applicant: Wi-LAN Inc.Inventors: Hari Sankar, Ron Porat, Danjie Pan, Wee Peng Goh, Srikanth Gummadi, Lei Wang
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Patent number: 10348463Abstract: Methods and apparatus are described for mitigating intercell interference in wireless communication systems utilizing substantially the same operating frequency band across multiple neighboring coverage areas. The operating frequency band may be shared across multiple neighboring or otherwise adjacent cells, such as in a frequency reuse one configuration. The wireless communication system can synchronize one or more resource allocation regions or zones across the multiple base stations, and can coordinate a permutation type within each resource allocation zone. The base stations can coordinate a pilot configuration in each of a plurality of coordinated resource allocation regions. Subscriber stations can be assigned resources in a coordinated resource allocation region based on interference levels. A subscriber station can determine a channel estimate for each of multiple base stations in the coordinated resource allocation region to mitigate interference.Type: GrantFiled: November 28, 2016Date of Patent: July 9, 2019Assignee: WI-LAN INC.Inventors: Hari Sankar, Ron Porat, Danjie Pan, Wee Peng Goh, Srikanth Gummadi, Lei Wang
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Publication number: 20170078056Abstract: Methods and apparatus are described for mitigating intercell interference in wireless communication systems utilizing substantially the same operating frequency band across multiple neighboring coverage areas. The operating frequency band may be shared across multiple neighboring or otherwise adjacent cells, such as in a frequency reuse one configuration. The wireless communication system can synchronize one or more resource allocation regions or zones across the multiple base stations, and can coordinate a permutation type within each resource allocation zone. The base stations can coordinate a pilot configuration in each of a plurality of coordinated resource allocation regions. Subscriber stations can be assigned resources in a coordinated resource allocation region based on interference levels. A subscriber station can determine a channel estimate for each of multiple base stations in the coordinated resource allocation region to mitigate interference.Type: ApplicationFiled: November 28, 2016Publication date: March 16, 2017Applicant: Wi-LAN Inc.Inventors: Hari Sankar, Ron Porat, Danjie Pan, Wee Peng Goh, Srikanth Gummadi, Lei Wang
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Patent number: 9509459Abstract: Methods and apparatus are described for mitigating intercell interference in wireless communication systems utilizing substantially the same operating frequency band across multiple neighboring coverage areas. The operating frequency band may be shared across multiple neighboring or otherwise adjacent cells, such as in a frequency reuse one configuration. The wireless communication system can synchronize one or more resource allocation regions or zones across the multiple base stations, and can coordinate a permutation type within each resource allocation zone. The base stations can coordinate a pilot configuration in each of a plurality of coordinated resource allocation regions. Subscriber stations can be assigned resources in a coordinated resource allocation region based on interference levels. A subscriber station can determine a channel estimate for each of multiple base stations in the coordinated resource allocation region to mitigate interference.Type: GrantFiled: December 6, 2013Date of Patent: November 29, 2016Assignee: Wi-LAN Inc.Inventors: Hari Sankar, Ron Porat, Danjie Pan, Wee Peng Goh, Srikanth Gummadi, Lei Wang
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Publication number: 20140092882Abstract: Methods and apparatus are described for mitigating intercell interference in wireless communication systems utilizing substantially the same operating frequency band across multiple neighboring coverage areas. The operating frequency band may be shared across multiple neighboring or otherwise adjacent cells, such as in a frequency reuse one configuration. The wireless communication system can synchronize one or more resource allocation regions or zones across the multiple base stations, and can coordinate a permutation type within each resource allocation zone. The base stations can coordinate a pilot configuration in each of a plurality of coordinated resource allocation regions. Subscriber stations can be assigned resources in a coordinated resource allocation region based on interference levels. A subscriber station can determine a channel estimate for each of multiple base stations in the coordinated resource allocation region to mitigate interference.Type: ApplicationFiled: December 6, 2013Publication date: April 3, 2014Applicant: Wi-LAN Inc.Inventors: Hari Sankar, Ron Porat, Danjie Pan, Wee Peng Goh, Srikanth Gummadi, Lei Wang
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Patent number: 8626072Abstract: Methods and apparatus are described for mitigating intercell interference in wireless communication systems utilizing substantially the same operating frequency band across multiple neighboring coverage areas. The operating frequency band may be shared across multiple neighboring or otherwise adjacent cells, such as in a frequency reuse one configuration. The wireless communication system can synchronize one or more resource allocation regions or zones across the multiple base stations, and can coordinate a permutation type within each resource allocation zone. The base stations can coordinate a pilot configuration in each of a plurality of coordinated resource allocation regions. Subscriber stations can be assigned resources in a coordinated resource allocation region based on interference levels. A subscriber station can determine a channel estimate for each of multiple base stations in the coordinated resource allocation region to mitigate interference.Type: GrantFiled: May 15, 2012Date of Patent: January 7, 2014Assignee: Wi-LAN, Inc.Inventors: Hari Sankar, Ron Porat, Danjie Pan, Wee Peng Goh, Srikanth Gummadi, Lei Wang
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Publication number: 20120320882Abstract: Methods and apparatus are described for mitigating intercell interference in wireless communication systems utilizing substantially the same operating frequency band across multiple neighboring coverage areas. The operating frequency band may be shared across multiple neighboring or otherwise adjacent cells, such as in a frequency reuse one configuration. The wireless communication system can synchronize one or more resource allocation regions or zones across the multiple base stations, and can coordinate a permutation type within each resource allocation zone. The base stations can coordinate a pilot configuration in each of a plurality of coordinated resource allocation regions. Subscriber stations can be assigned resources in a coordinated resource allocation region based on interference levels. A subscriber station can determine a channel estimate for each of multiple base stations in the coordinated resource allocation region to mitigate interference.Type: ApplicationFiled: May 15, 2012Publication date: December 20, 2012Applicant: WI-LAN INC.Inventors: Hari SANKAR, Ron PORAT, Danjie PAN, Wee Peng GOH, Srikanth GUMMADI, Lei WANG
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Patent number: 8204442Abstract: Methods and apparatus are described for mitigating intercell interference in wireless communication systems utilizing substantially the same operating frequency band across multiple neighboring coverage areas. The operating frequency band may be shared across multiple neighboring or otherwise adjacent cells, such as in a frequency reuse one configuration. The wireless communication system can synchronize one or more resource allocation regions or zones across the multiple base stations, and can coordinate a permutation type within each resource allocation zone. The base stations can coordinate a pilot configuration in each of a plurality of coordinated resource allocation regions. Subscriber stations can be assigned resources in a coordinated resource allocation region based on interference levels. A subscriber station can determine a channel estimate for each of multiple base stations in the coordinated resource allocation region to mitigate interference.Type: GrantFiled: December 3, 2008Date of Patent: June 19, 2012Assignee: Wi-LAN Inc.Inventors: Hari Sankar, Ron Porat, Danjie Pan, Wee Peng Goh, Srikanth Gummadi, Lei Wang
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Publication number: 20090264142Abstract: Methods and apparatus are described for mitigating intercell interference in wireless communication systems utilizing substantially the same operating frequency band across multiple neighboring coverage areas. The operating frequency band may be shared across multiple neighboring or otherwise adjacent cells, such as in a frequency reuse one configuration. The wireless communication system can synchronize one or more resource allocation regions or zones across the multiple base stations, and can coordinate a permutation type within each resource allocation zone. The base stations can coordinate a pilot configuration in each of a plurality of coordinated resource allocation regions. Subscriber stations can be assigned resources in a coordinated resource allocation region based on interference levels. A subscriber station can determine a channel estimate for each of multiple base stations in the coordinated resource allocation region to mitigate interference.Type: ApplicationFiled: December 3, 2008Publication date: October 22, 2009Applicant: NextWave Broadband Inc.Inventors: Hari Sankar, Ron Porat, Danjie Pan, Wee Peng Goh, Srikanth Gummadi, Lei Wang
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Patent number: 6636328Abstract: A printer that uses a number of control state machines to reconfigure logic array circuitry to perform image data processing in preparation for printing. The logic array circuitry is programmable and adaptable to accommodate a wide variety of printer components characteristic to digital image printing systems. The logic array circuitry is reconfigured, depending on the particular printer in which the invention is implemented, by the control state machines as they receive control state machine conditions corresponding to the printer components characteristic to that specific digital image printer. For example, the physical, mechanical, and electrical characteristics of the printer constitute the printer component that modify the control state machine conditions which in turn govern the configuration of the logic array circuitry through the control state machines.Type: GrantFiled: April 1, 1999Date of Patent: October 21, 2003Assignee: Viewahead TechnologyInventors: Danjie Pan, Chong-Hing Cheung
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Publication number: 20020181020Abstract: A digital image printer that performs bit rotation and row alignment in preparation for final image reproduction. The present invention combines the two digital image data processing functions of bit rotation and row alignment into a single functional step. The two functions are performed simultaneously, in that, while row alignment is being performed during the deposition of a portion of the digital image data into a certain portion of a group of memory buffers, bit rotation is performed by extracting another portion of the digital image data from another portion of a group of memory buffers. The present invention reduces the number of required digital image data memory buffers required to perform the two functions of bit rotation and row alignment from conventional systems that perform the two functions sequentially and utilize a direct memory access channel to perform the data transfer between integrated circuitry that performs the two functions.Type: ApplicationFiled: July 5, 2002Publication date: December 5, 2002Applicant: Conexant Systems, Inc.Inventors: Danjie Pan, Chong-Hing Cheung
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Publication number: 20020176110Abstract: An image data addressing system for a digital image printer operates on a plurality of image data having a horizontal format. Ink jet type digital printers require the alignment of the image data in a horizontal fashion to accommodate the vertical, mechanical arrangement of the ink jet nozzles. A program adapted to the specific components, circuitry and other characteristics of the digital image printer performs data addressing on the image data for preparation for ink jet firing by the ink jet nozzles. A common, integrated memory is used to perform the image data processing of the plurality of image data. The digital image printer adaptable program governs the storing of the image data so that it is adaptable to the specific components, circuitry and other characteristics of the digital image printer. An unused, consecutive portion of the integrated memory is provided at certain times during the image data processing.Type: ApplicationFiled: July 5, 2002Publication date: November 28, 2002Applicant: Conexant Systems, Inc.Inventors: Danjie Pan, Chong-Hing Cheung
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Patent number: 6456389Abstract: A digital image printer that performs bit rotation and row alignment in preparation for final image reproduction. The present invention combines the two digital image data processing functions of bit rotation and row alignment into a single functional step. The two functions are performed simultaneously, in that, while row alignment is being performed during the deposition of a portion of the digital image data into a certain portion of a group of memory buffers, bit rotation is performed by extracting another portion of the digital image data from another portion of a group of memory buffers. The present invention reduces the number of required digital image data memory buffers required to perform the two functions of bit rotation and row alignment from conventional systems that perform the two functions sequentially and utilize a direct memory access channel to perform the data transfer between integrated circuitry that performs the two functions.Type: GrantFiled: April 1, 1999Date of Patent: September 24, 2002Assignee: Viewahead Technology, Inc.Inventors: Danjie Pan, Chong-Hing Cheung
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Patent number: 6449057Abstract: An image data addressing system for a digital image printer operates on a plurality of image data having a horizontal format. Ink jet type digital printers require the alignment of the image data in a horizontal fashion to accommodate the vertical, mechanical arrangement of the ink jet nozzles. A program adapted to the specific components, circuitry and other characteristics of the digital image printer performs data addressing on the image data for preparation for ink jet firing by the ink jet nozzles. A common, integrated memory is used to perform the image data processing of the plurality of image data. The digital image printer adaptable program governs the storing of the image data so that it is adaptable to the specific components, circuitry and other characteristics of the digital image printer. An unused, consecutive portion of the integrated memory is provided at certain times during the image data processing.Type: GrantFiled: April 1, 1999Date of Patent: September 10, 2002Assignee: ViewAhead Technology, Inc.Inventors: Danjie Pan, Chong-Hing Cheung