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).

  • Publication number: 20240089040
    Abstract: 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: Application
    Filed: November 20, 2023
    Publication date: March 14, 2024
    Applicant: Wi-LAN Inc.
    Inventors: Hari SANKAR, Ron Porat, Danjie Pan, Wee Peng Goh, Srikanth Gummadi, Lei Wang
  • Patent number: 11824800
    Abstract: 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: Grant
    Filed: April 19, 2021
    Date of Patent: November 21, 2023
    Assignee: Wi-LAN Inc.
    Inventors: Hari Sankar, Ron Porat, Danjie Pan, Wee Peng Goh, Srikanth Gummadi, Lei Wang
  • Publication number: 20210242986
    Abstract: 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: Application
    Filed: April 19, 2021
    Publication date: August 5, 2021
    Applicant: Wi-LAN Inc.
    Inventors: Hari Sankar, Ron Porat, Danjie Pan, Wee Peng Goh, Srikanth Gummadi, Lei Wang
  • Patent number: 10985881
    Abstract: 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: Grant
    Filed: July 8, 2019
    Date of Patent: April 20, 2021
    Assignee: WI-LAN INC.
    Inventors: Hari Sankar, Ron Porat, Danjie Pan, Wee Peng Goh, Srikanth Gummadi, Lei Wang
  • Publication number: 20190334667
    Abstract: 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: Application
    Filed: July 8, 2019
    Publication date: October 31, 2019
    Applicant: Wi-LAN Inc.
    Inventors: Hari Sankar, Ron Porat, Danjie Pan, Wee Peng Goh, Srikanth Gummadi, Lei Wang
  • Patent number: 10348463
    Abstract: 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: Grant
    Filed: November 28, 2016
    Date of Patent: July 9, 2019
    Assignee: WI-LAN INC.
    Inventors: Hari Sankar, Ron Porat, Danjie Pan, Wee Peng Goh, Srikanth Gummadi, Lei Wang
  • Publication number: 20170078056
    Abstract: 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: Application
    Filed: November 28, 2016
    Publication date: March 16, 2017
    Applicant: Wi-LAN Inc.
    Inventors: Hari Sankar, Ron Porat, Danjie Pan, Wee Peng Goh, Srikanth Gummadi, Lei Wang
  • Patent number: 9509459
    Abstract: 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: Grant
    Filed: December 6, 2013
    Date of Patent: November 29, 2016
    Assignee: Wi-LAN Inc.
    Inventors: Hari Sankar, Ron Porat, Danjie Pan, Wee Peng Goh, Srikanth Gummadi, Lei Wang
  • Publication number: 20140092882
    Abstract: 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: Application
    Filed: December 6, 2013
    Publication date: April 3, 2014
    Applicant: Wi-LAN Inc.
    Inventors: Hari Sankar, Ron Porat, Danjie Pan, Wee Peng Goh, Srikanth Gummadi, Lei Wang
  • Patent number: 8626072
    Abstract: 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: Grant
    Filed: May 15, 2012
    Date of Patent: January 7, 2014
    Assignee: Wi-LAN, Inc.
    Inventors: Hari Sankar, Ron Porat, Danjie Pan, Wee Peng Goh, Srikanth Gummadi, Lei Wang
  • Publication number: 20120320882
    Abstract: 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: Application
    Filed: May 15, 2012
    Publication date: December 20, 2012
    Applicant: WI-LAN INC.
    Inventors: Hari SANKAR, Ron PORAT, Danjie PAN, Wee Peng GOH, Srikanth GUMMADI, Lei WANG
  • Patent number: 8204442
    Abstract: 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: Grant
    Filed: December 3, 2008
    Date of Patent: June 19, 2012
    Assignee: Wi-LAN Inc.
    Inventors: Hari Sankar, Ron Porat, Danjie Pan, Wee Peng Goh, Srikanth Gummadi, Lei Wang
  • Publication number: 20090264142
    Abstract: 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: Application
    Filed: December 3, 2008
    Publication date: October 22, 2009
    Applicant: NextWave Broadband Inc.
    Inventors: Hari Sankar, Ron Porat, Danjie Pan, Wee Peng Goh, Srikanth Gummadi, Lei Wang
  • Patent number: 6636328
    Abstract: 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: Grant
    Filed: April 1, 1999
    Date of Patent: October 21, 2003
    Assignee: Viewahead Technology
    Inventors: Danjie Pan, Chong-Hing Cheung
  • Publication number: 20020181020
    Abstract: 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: Application
    Filed: July 5, 2002
    Publication date: December 5, 2002
    Applicant: Conexant Systems, Inc.
    Inventors: Danjie Pan, Chong-Hing Cheung
  • Publication number: 20020176110
    Abstract: 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: Application
    Filed: July 5, 2002
    Publication date: November 28, 2002
    Applicant: Conexant Systems, Inc.
    Inventors: Danjie Pan, Chong-Hing Cheung
  • Patent number: 6456389
    Abstract: 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: Grant
    Filed: April 1, 1999
    Date of Patent: September 24, 2002
    Assignee: Viewahead Technology, Inc.
    Inventors: Danjie Pan, Chong-Hing Cheung
  • Patent number: 6449057
    Abstract: 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: Grant
    Filed: April 1, 1999
    Date of Patent: September 10, 2002
    Assignee: ViewAhead Technology, Inc.
    Inventors: Danjie Pan, Chong-Hing Cheung