Patents by Inventor Srikanth Gummadi

Srikanth Gummadi 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: 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: 20190044771
    Abstract: Systems and methods of pre-allocating identifiers to wireless devices for use in requesting resources over a random access channel are described. A wireless communication system includes a random access channel over which wireless devices can anonymously send requests for resources. The base stations receiving and processing the anonymous requests reduces the probability of random access channel collisions and conserves the resources needed to support the anonymous requests by pre-allocating one or more identifiers to select wireless devices. The wireless devices having the pre-allocated codes can transmit a particular code over the random access channel as a request for resources that uniquely identifies the requester.
    Type: Application
    Filed: October 3, 2018
    Publication date: February 7, 2019
    Inventors: Yair Bourlas, Adam E. Newham, Lei Wang, Srikanth Gummadi
  • Publication number: 20180242292
    Abstract: A method of wireless communication including a base station transmitting a preamble including information indicating a sector identifier and an antenna port value. The base station further transmits a pilot sequence, wherein the pilot sequence and the location of the pilot sequence are based on the sector identifier and on the antenna port value. A base station configured to perform the method is also disclosed. A corresponding subscriber station configured to receive the preamble and pilot sequence is also disclosed, as well as a subscriber station method.
    Type: Application
    Filed: April 19, 2018
    Publication date: August 23, 2018
    Applicant: Wi-LAN Inc.
    Inventors: Gene Marsh, Srikanth Gummadi, William Burchill, Michael Wengler
  • Patent number: 9967870
    Abstract: A method of wireless communication including a base station transmitting a preamble including information indicating a sector identifier and an antenna port value. The base station further transmits a pilot sequence, wherein the pilot sequence and the location of the pilot sequence are based on the sector identifier and on the antenna port value. A base station configured to perform the method is also disclosed. A corresponding subscriber station configured to receive the preamble and pilot sequence is also disclosed, as well as a subscriber station method.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: May 8, 2018
    Assignee: WI-LAN INC.
    Inventors: Gene Marsh, Srikanth Gummadi, William Burchill, Michael Wengler
  • Publication number: 20180013808
    Abstract: A method of encapsulating data and a single frequency network configured to perform the method are disclosed. A content stream of data packets is received, and the data packets in the content stream are formatted in accordance with a first protocol. Information identifying a container size established for the content stream is received. The data packets formatted in accordance with the first protocol are fragmented and packed to form data units formatted in accordance with a second protocol, and the data units are sized based on the container size. The data units formatted in accordance with the second protocol are encapsulated to form second protocol data packets. The second protocol data packets are provided to a transmitter that is synchronized to one or more transmitters in a single frequency network so that each transmitter in the single frequency network broadcasts a same signal that includes the second protocol data packets.
    Type: Application
    Filed: September 6, 2017
    Publication date: January 11, 2018
    Applicant: Wi-LAN INC.
    Inventors: Brian D. Petry, Dennis P. Connors, Gene W. Marsh, Srikanth Gummadi, Keerthi S. Govind, William S. Burchill, Seema Madan
  • Patent number: 9775002
    Abstract: Methods and apparatus for identifying a subscriber station which is in motion, determining a mobility metric indicative of a level of mobility of the subscriber station and varying or updating one or more operating parameters based on the mobility metric. An apparatus can determine a measure of mobility based on one or a combination of a plurality of factors, such as variations in signal strength, variations in a channel estimate, or variations in phase or frequency of a particular signal or signal component. The one or more measures of mobility can be combined to form a single measure of mobility, the measure of mobility can be quantized to a predetermined number of mobility levels and one or more operating parameters can be varied or adjusted based on the mobility level.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: September 26, 2017
    Assignee: WI-LAN INC.
    Inventors: Srikanth Gummadi, Ron Porat, Todd R. Sutton
  • 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: 20160308701
    Abstract: Systems and methods of pre-allocating identifiers to wireless devices for use in requesting resources over a random access channel are described. A wireless communication system includes a random access channel over which wireless devices can anonymously send requests for resources. The base stations receiving and processing the anonymous requests reduces the probability of random access channel collisions and conserves the resources needed to support the anonymous requests by pre-allocating one or more identifiers to select wireless devices. The wireless devices having the pre-allocated codes can transmit a particular code over the random access channel as a request for resources that uniquely identifies the requester.
    Type: Application
    Filed: June 27, 2016
    Publication date: October 20, 2016
    Applicant: Wi-LAN Inc.
    Inventors: Yair Bourlas, Adam E. Newham, Lei Wang, Srikanth Gummadi
  • Patent number: 9474072
    Abstract: An advanced technology frame structure is described herein. The advanced technology frame structure can enhance a first technology frame structure in dimensions of time, frequency, or a combination of time and frequency. A second technology frame structure time division multiplexes second technology subframes with the first technology downlink and uplink subframes. The first technology downlink subframe can be divided into a first technology downlink subframe and one or more second technology downlink subframes. Similarly, the first technology uplink subframe can be divided into a first uplink subframe and one or more second technology uplink subframes. These principles can be expanded upon and can be applied in many communication systems.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: October 18, 2016
    Assignee: Monument Bank of Intellectual Property, LLC
    Inventors: Roger Marks, Lei Wang, Yair Bourlas, Srikanth Gummadi, Kenneth Stanwood, Ron Porat
  • Patent number: 9380607
    Abstract: Systems and methods of pre-allocating identifiers to wireless devices for use in requesting resources over a random access channel are described. A wireless communication system includes a random access channel over which wireless devices can anonymously send requests for resources. The base stations receiving and processing the anonymous requests reduces the probability of random access channel collisions and conserves the resources needed to support the anonymous requests by pre-allocating one or more identifiers to select wireless devices. The wireless devices having the pre-allocated codes can transmit a particular code over the random access channel as a request for resources that uniquely identifies the requester.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: June 28, 2016
    Assignee: WI-LAN INC.
    Inventors: Yair Bourlas, Adam E. Newham, Lei Wang, Srikanth Gummadi
  • Publication number: 20160157214
    Abstract: A method of wireless communication including a base station transmitting a preamble including information indicating a sector identifier and an antenna port value. The base station further transmits a pilot sequence, wherein the pilot sequence and the location of the pilot sequence are based on the sector identifier and on the antenna port value. A base station configured to perform the method is also disclosed. A corresponding subscriber station configured to receive the preamble and pilot sequence is also disclosed, as well as a subscriber station method.
    Type: Application
    Filed: December 4, 2015
    Publication date: June 2, 2016
    Applicant: Wi-LAN INC.
    Inventors: Gene Marsh, Srikanth Gummadi, William Burchill, Michael Wengler
  • Patent number: 9332572
    Abstract: Systems and methods of pre-allocating identifiers to wireless devices for use in requesting resources over a random access channel are described. A wireless communication system includes a random access channel over which wireless devices can anonymously send requests for resources. The base stations receiving and processing the anonymous requests reduces the probability of random access channel collisions and conserves the resources needed to support the anonymous requests by pre-allocating one or more identifiers to select wireless devices. The wireless devices having the pre-allocated codes can transmit a particular code over the random access channel as a request for resources that uniquely identifies the requester.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: May 3, 2016
    Assignee: Wi-LAN Inc.
    Inventors: Yair Bourlas, Adam E. Newham, Lei Wang, Srikanth Gummadi
  • Publication number: 20160007382
    Abstract: Systems and methods of pre-allocating identifiers to wireless devices for use in requesting resources over a random access channel are described. A wireless communication system includes a random access channel over which wireless devices can anonymously send requests for resources. The base stations receiving and processing the anonymous requests reduces the probability of random access channel collisions and conserves the resources needed to support the anonymous requests by pre-allocating one or more identifiers to select wireless devices. The wireless devices having the pre-allocated codes can transmit a particular code over the random access channel as a request for resources that uniquely identifies the requester.
    Type: Application
    Filed: September 15, 2015
    Publication date: January 7, 2016
    Applicant: WI-LAN INC.
    Inventors: Yair Bourlas, Adam E. Newham, Lei Wang, Srikanth Gummadi
  • Patent number: 9226319
    Abstract: Systems and methods of pre-allocating identifiers to wireless devices for use in requesting resources over a random access channel are described. A wireless communication system includes a random access channel over which wireless devices can anonymously send requests for resources. The base stations receiving and processing the anonymous requests reduces the probability of random access channel collisions and conserves the resources needed to support the anonymous requests by pre-allocating one or more identifiers to select wireless devices. The wireless devices having the pre-allocated codes can transmit a particular code over the random access channel as a request for resources that uniquely identifies the requester.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: December 29, 2015
    Assignee: Wi-LAN Inc.
    Inventors: Yair Bourlas, Adam E. Newham, Lei Wang, Srikanth Gummadi
  • Patent number: 9226320
    Abstract: Systems and methods of pre-allocating identifiers to wireless devices for use in requesting resources over a random access channel are described. A wireless communication system includes a random access channel over which wireless devices can anonymously send requests for resources. The base stations receiving and processing the anonymous requests reduces the probability of random access channel collisions and conserves the resources needed to support the anonymous requests by pre-allocating one or more identifiers to select wireless devices. The wireless devices having the pre-allocated codes can transmit a particular code over the random access channel as a request for resources that uniquely identifies the requester.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: December 29, 2015
    Assignee: Wi-LAN Inc.
    Inventors: Yair Bourlas, Adam E. Newham, Lei Wang, Srikanth Gummadi
  • Publication number: 20150359009
    Abstract: Systems and methods of pre-allocating identifiers to wireless devices for use in requesting resources over a random access channel are described. A wireless communication system includes a random access channel over which wireless devices can anonymously send requests for resources. The base stations receiving and processing the anonymous requests reduces the probability of random access channel collisions and conserves the resources needed to support the anonymous requests by pre-allocating one or more identifiers to select wireless devices. The wireless devices having the pre-allocated codes can transmit a particular code over the random access channel as a request for resources that uniquely identifies the requester.
    Type: Application
    Filed: August 20, 2015
    Publication date: December 10, 2015
    Applicant: WI-LAN INC.
    Inventors: Yair Bourlas, Adam E. Newham, Lei Wang, Srikanth Gummadi
  • Publication number: 20150327020
    Abstract: Methods and apparatus for identifying a subscriber station which is in motion, determining a mobility metric indicative of a level of mobility of the subscriber station and varying or updating one or more operating parameters based on the mobility metric. An apparatus can determine a measure of mobility based on one or a combination of a plurality of factors, such as variations in signal strength, variations in a channel estimate, or variations in phase or frequency of a particular signal or signal component. The one or more measures of mobility can be combined to form a single measure of mobility, the measure of mobility can be quantized to a predetermined number of mobility levels and one or more operating parameters can be varied or adjusted based on the mobility level.
    Type: Application
    Filed: July 20, 2015
    Publication date: November 12, 2015
    Applicant: WI-LAN INC.
    Inventors: Srikanth GUMMADI, Ron PORAT, Todd R. SUTTON
  • Patent number: 9178539
    Abstract: Methods and apparatus for reducing transmit emissions are described herein. The transmit out of band emissions in an adjacent band can be reduced while complying with existing wireless communication standards through utilization of one or more of reduced transmit bandwidth, transmit operating band offset, and channel index remapping. The transceiver can support a receive operating band substantially adjacent to a band edge. The transmit operating band can be offset from an adjacent frequency band, and can use a narrower operating band than is supported by the receiver. The transmit baseband signal can have a reduced bandwidth to reduce the amount of noise. The frequency offset can introduce a larger transition band between the transmit operating band edges and the adjacent frequency band of interest. The transceiver can remap channel assignments to compensate for the frequency offset such that the frequency offset introduced in the transmitter is transparent to channel allocation.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: November 3, 2015
    Assignee: WI-LAN, INC.
    Inventors: Todd Sutton, Srikanth Gummadi, Walid Hosseini, Lei Wang
  • Patent number: 9088958
    Abstract: Methods and apparatus for identifying a subscriber station which is in motion, determining a mobility metric indicative of a level of mobility of the subscriber station and varying or updating one or more operating parameters based on the mobility metric. An apparatus can determine a measure of mobility based on one or a combination of a plurality of factors, such as variations in signal strength, variations in a channel estimate, or variations in phase or frequency of a particular signal or signal component. The one or more measures of mobility can be combined to form a single measure of mobility, the measure of mobility can be quantized to a predetermined number of mobility levels and one or more operating parameters can be varied or adjusted based on the mobility level.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: July 21, 2015
    Assignee: WI-LAN INC.
    Inventors: Srikanth Gummadi, Ron Porat, Todd R. Sutton