Patents by Inventor Hemanth Sampath

Hemanth Sampath 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: 20150078299
    Abstract: Aspects of the present disclosure provide techniques and apparatus for deferral based on basic service set identification (BSSID) information. According to certain aspects, a method for wireless communications is provided. The method generally includes receiving, on a shared access medium, a packet having at least one deferral-related parameter and deciding whether to defer transmission on the shared access medium based, at least in part, on the deferral-related parameter. Another method may generally include generating a packet comprising at least one deferral-related parameter to be used by another apparatus for deciding whether or not the other apparatus should defer transmitting on a shared access medium and providing the packet to the other apparatus.
    Type: Application
    Filed: September 15, 2014
    Publication date: March 19, 2015
    Inventors: Gwendolyn Denise BARRIAC, Simone MERLIN, Hao ZHU, Srinivas KATAR, Lawrence Winston YONGE, III, Chao ZOU, Bin TIAN, Yan ZHOU, Hemanth SAMPATH
  • Publication number: 20150078368
    Abstract: Certain aspects of the present disclosure present a technique for enabling a receiver to detect mode of transmission of a signal based on a common field transmitted to all the receivers. The proposed technique includes frame structure in which information about the transmission mode is transmitted in a first portion of a SIG field to all the receivers.
    Type: Application
    Filed: December 3, 2014
    Publication date: March 19, 2015
    Inventors: Sameer Vermani, Lin Yang, Hemanth Sampath, Vincent Knowles Jones, IV, Didier Johannes Richard Van Nee
  • Publication number: 20150078298
    Abstract: Certain aspects of the present disclosure relate generally to wireless communications, and more specifically to systems, methods, and devices for staggered primary channel selection for WiFi. According to certain aspects, a method for wireless communications is provided. The method may be performed, for example, by an access point (AP). The method generally includes obtaining information regarding neighbor basic service sets (BSSs), selecting a primary channel based on the obtained information, and output for transmission a message signaling an intention to communicate using the selected primary channel.
    Type: Application
    Filed: September 15, 2014
    Publication date: March 19, 2015
    Inventors: Gwendolyn Denise BARRIAC, Simone MERLIN, Yan ZHOU, Hemanth SAMPATH
  • Publication number: 20150071144
    Abstract: A particular method includes receiving a power save polling frame from a station at an access point. The method also includes, in response to receiving the power save polling frame, transmitting a frame from the access point to the station, the frame indicating whether traffic associated with the station is buffered at the access point. Another particular method includes transmitting a power save polling frame from the station to the access point. The method further includes, in response to transmitting the power save polling frame, receiving a frame from the access point indicating whether traffic associated with the station is buffered at the access point.
    Type: Application
    Filed: May 23, 2014
    Publication date: March 12, 2015
    Inventors: Maarten Menzo Wentink, Hemanth Sampath
  • Patent number: 8977282
    Abstract: Certain aspects of the present disclosure provide a protocol to allow for load balancing between multiple frequency channels in a wireless communications system.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: March 10, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Santosh Paul Abraham, Simone Merlin, Maarten Menzo Wentink, Hemanth Sampath, Vincent Knowles Jones, IV
  • Publication number: 20150063327
    Abstract: Systems, methods, and devices for high efficiency wireless (HEW) access point (AP) coordination protocol are described herein. According to certain aspects, a method for coordinating access to a shared medium by an access point (AP) is provided. The method generally synchronizing with one or more peer apparatuses based on synchronization messages detected during a listening time, outputting, for transmission, scheduling information to the one or more peer apparatuses, the scheduling information indicating one or more time periods during which coordinated access to the shared medium is desired, and outputting, for transmission, at least some of the scheduling information to devices served by the apparatus.
    Type: Application
    Filed: August 26, 2014
    Publication date: March 5, 2015
    Applicant: QUALCOMM INCORPORATED
    Inventors: Gwendolyn Denise BARRIAC, Simone MERLIN, Yan ZHOU, Hemanth SAMPATH
  • Publication number: 20150063320
    Abstract: Methods and apparatus for acknowledgment of multiple user uplink are provided. In one aspect, a method of wireless communication includes receiving a first wireless message from a first station at least partially concurrently with receiving a second wireless message from a second station, generating a first acknowledgment message in response to receiving the first wireless message, generating a second acknowledgement message in response to receiving the second wireless message, and transmitting the first acknowledgment message to the first station at least partially concurrently with transmitting the second acknowledgement message to the second station.
    Type: Application
    Filed: August 26, 2014
    Publication date: March 5, 2015
    Inventors: Simone Merlin, Gwendolyn Denise Barriac, Hemanth Sampath, Sameer Vermani
  • Publication number: 20150063257
    Abstract: Methods and apparatus for multiple user uplink are provided. In one aspect, a method of wireless communication is provided. The method includes transmitting a scheduling message to one or more stations. The scheduling message requests the one or more stations to transmit a station information message in response to the scheduling message. The method further includes receiving a plurality of station information messages. The station information messages indicates station information. The method further includes transmitting a media access control multi user (MAC MU) scheduling message to two or more stations. The MAC MU scheduling message is included in a payload portion of a physical layer data unit (PPDU) and indicates an uplink transmission opportunity and requests the two or more stations to concurrently transmit uplink data at a specific time.
    Type: Application
    Filed: August 26, 2014
    Publication date: March 5, 2015
    Inventors: Simone Merlin, Gwendolyn Denise Barriac, Hemanth Sampath, Sameer Vermani
  • Publication number: 20150063288
    Abstract: Certain aspects of the present disclosure relate to techniques for constructing a training sequence as a part of transmission preamble in an effort to minimize (or at least reduce) a peak-to-average power ratio (PAPR) at a transmitting node.
    Type: Application
    Filed: November 11, 2014
    Publication date: March 5, 2015
    Inventors: Lin YANG, Didier Johannes Richard Van Nee, Hemanth Sampath
  • Publication number: 20150063258
    Abstract: A method for wireless communication is provided. The method comprises transmitting a first wireless message comprising a request for a first user terminal to transmit uplink data and an indication of at least one requested operational parameter. The method also comprises receiving a second wireless message from an access point in response to the first wireless message, the second wireless message indicating whether a plurality of user terminals including the first user terminal is selected to transmit uplink data, the second wireless message indicating at least one operational parameter for transmission of uplink data based on the at least one requested operational parameter.
    Type: Application
    Filed: August 26, 2014
    Publication date: March 5, 2015
    Inventors: Simone Merlin, Gwendolyn Denise Barriac, Hemanth Sampath, Sameer Vermani
  • Publication number: 20150063291
    Abstract: Methods and apparatus for multiple user uplink are provided. In one aspect, a method for wireless communication includes generating a first wireless message granting permission for a first station to transmit during a transmission opportunity, generating a second wireless message granting permission for a second station to transmit during the transmission opportunity; and transmitting the first wireless message to the first station at least partially concurrently with transmission of the second wireless message to the second station.
    Type: Application
    Filed: August 26, 2014
    Publication date: March 5, 2015
    Inventors: Simone Merlin, Gwendolyn Denise Barriac, Hemanth Sampath, Sameer Vermani
  • Publication number: 20150063334
    Abstract: A method includes generating a data packet at a source device for transmission via an Institute of Electrical and Electronics Engineers 802.11 wireless network. The data packet includes multiple data symbols that are duplicated in the data packet. At least a portion of a preamble of the data packet is not duplicated in the data packet. The portion of the preamble indicates that the packet is a low rate mode packet. The method also includes transmitting the data packet from the source device to a destination device via the wireless network.
    Type: Application
    Filed: August 25, 2014
    Publication date: March 5, 2015
    Inventors: Sameer Vermani, Bin Tian, Rahul Tandra, Hemanth Sampath, Simone Merlin
  • Publication number: 20150063111
    Abstract: Methods and apparatus for multiple user uplink are provided. In one aspect, a method of wireless communication is provided. The method includes transmitting a quality of service (QoS) message to a device. The QoS message includes a request for a transmission opportunity for sending uplink data to the device. The QoS message includes at least one of a sequence control field or a QoS control field. The method further includes receiving a clear to transmit (CTX) message in response to the QoS message. The method further includes transmitting data to the device in response to the CTX message.
    Type: Application
    Filed: August 26, 2014
    Publication date: March 5, 2015
    Inventors: Simone Merlin, Gwendolyn Denise Barriac, Hemanth Sampath, Sameer Vermani
  • Publication number: 20150063190
    Abstract: Methods and apparatus for multiple user uplink are provided. In one aspect, a method of wireless communication is provided. The method includes transmitting a first message to at least two stations. The first message indicates a second message to be transmitted to at least two stations after the first message. The method further includes transmitting the second message to the at least two stations. The method further includes receiving a plurality of uplink data from the at least two stations in response to the second message.
    Type: Application
    Filed: August 26, 2014
    Publication date: March 5, 2015
    Inventors: Simone Merlin, Gwendolyn Denise Barriac, Hemanth Sampath, Sameer Vermani
  • Publication number: 20150063318
    Abstract: The disclosure provides methods and apparatuses for multiple user uplink. One aspect of the disclosure provides a method for wireless communication. The method comprises receiving a first wireless message from an access point indicating an uplink transmission opportunity and a target transmission duration for each of a plurality of user terminals including a first user terminal. The method also comprises changing a planned transmission duration of a second wireless message from the first user terminal to fit the target transmission duration. The method also comprises transmitting the second wireless message from the first user terminal over the target transmission duration.
    Type: Application
    Filed: August 26, 2014
    Publication date: March 5, 2015
    Inventors: Simone Merlin, Gwendolyn Denise Barriac, Hemanth Sampath, Sameer Vermani, Gang Ding
  • Publication number: 20150063191
    Abstract: Methods and apparatus for multiple user uplink are provided. In one aspect, a method for wireless communication is provided. The method includes transmitting a clear to transmit (CTX) message to two or more stations, the CTX indicating an uplink transmission opportunity, the CTX message further comprising a request that the two or more stations concurrently transmit uplink data at a specific time. The method further includes receiving a plurality of uplink data from at least two stations at the specific time.
    Type: Application
    Filed: August 26, 2014
    Publication date: March 5, 2015
    Inventors: Simone Merlin, Gwendolyn Denise Barriac, Hemanth Sampath, Sameer Vermani
  • Patent number: 8971823
    Abstract: Techniques to enhance the performance in a wireless communication system using segments called subbands and using precoding are shown. According to one aspect, the bandwidth for transmission to an access terminal is constrained to a preferred bandwidth which is less than the bandwidth available for transmission to an access terminal and precoding information related to the subcarriers within the constrained bandwidth is provided to a transmitter. The precoding information related to the subcarriers within a constrained bandwidth provides feedback about the forward link channel properties relative to different subbands and may be fed back on a channel associated with the bandwidth.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: March 3, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Dhananjay Ashok Gore, Hemanth Sampath, Jibing Wang, Tamer Kadous, Gwendolyn D. Barriac
  • Patent number: 8971278
    Abstract: The present disclosure presents methods and apparatuses for improved wireless node transmission of advertising beacons based on, for example, the presence of sufficient wireless node resource availability and one or more user equipment (UE) wakeup schedules. For example, the present disclosure describes example methods of advertising beacon transmission by a wireless node, which may include determining that a resource availability opportunity exists for supporting a UE at the wireless node. In another aspect, methods may include tuning to a non-serving channel based on determining that the resource availability opportunity exists. According to such example methods, the non-serving channel may be different from a serving channel of the wireless node. Furthermore, the example methods may include transmitting an advertising beacon on the non-serving channel. Upon successful receipt of the advertising beacon, the UE may scan for the serving channel of the wireless node for subsequent wireless network access.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: March 3, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Yan Zhou, George Cherian, Hemanth Sampath
  • Patent number: 8971461
    Abstract: Systems and methodologies are described that facilitate integrating a list-sphere decoding design in a multiple input-multiple output (MIMO wireless communication environment. According to various aspects, optimal rank selection and CQI computation for an optimal rank can be performed in conjunction with a non-linear receiver, such as a maximum life (ML) MMSE receiver, a non-linear receiver with a list-sphere decoder, and the like. Optimal rank selection can be performed using a maximum rank selection protocol, a channel capacity-based protocol, or any other suitable protocol that facilitates rank selection, and CQI information can be generated based in part on effective SNRs determined with regard to a selected optimal rank.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: March 3, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Hemanth Sampath, Tamer Kadous
  • Publication number: 20150055587
    Abstract: Systems, methods, and apparatus are disclosed for increasing reuse in wireless communications. In one aspect, a method of wireless communication is provided, transmitting a message to a first station indicating an identified transmission opportunity for the first station to communicate with a second station. The method further comprises transmitting a first wireless communication signal to at least a third station utilizing beamformed wireless communication such that the first wireless communication signal to the third station has a received signal level below a threshold at one or both of the first and second stations. The identified transmission opportunity is based on whether a transmission of a second wireless communication signal between the first and the second stations occurs over a period of time that is at least partially concurrent with the utilized beamformed communication.
    Type: Application
    Filed: August 12, 2014
    Publication date: February 26, 2015
    Inventors: Hemanth Sampath, Simone Merlin, Sameer Vermani, Gwendolyn Denise Barriac