Patents by Inventor Santosh P Abraham

Santosh P Abraham 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: 8923215
    Abstract: An apparatus for communications including a processing system configured to generate a plurality of spatial streams for communicating with a plurality of nodes, the processing system being further capable of determining an allocation of the spatial streams to each of the nodes based on at least one metric for each of the nodes.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: December 30, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Sameer Vermani, Vinay Sridhara, Santosh P. Abraham, Alok Aggarwal
  • Publication number: 20140355564
    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a STA. The STA communicating with a first AP based on a key. The STA receives an identifier broadcasted from a second AP. The STA determines whether the key can be used with the second AP based on the received identifier. The STA selects the second AP upon determining the key can be used with the second AP. The STA requests a transfer of association context information from the first AP to the second AP. The key may be a PTK. The PTK may be a function of the identifier. The identifier may be a zone identifier identifying a set of APs that belong to a security domain in which the association context information of the STA can be transferred from one AP to another AP.
    Type: Application
    Filed: January 21, 2014
    Publication date: December 4, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: George CHERIAN, Santosh P. ABRAHAM
  • Patent number: 8885551
    Abstract: An apparatus for wireless communications is provided including a processing system. The processing system is configured to determine path-losses between the apparatus and a plurality of wireless nodes, to group the plurality of wireless nodes into sets based on the determined path-losses, and to exchange data with at least one of the wireless nodes in one of the sets.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: November 11, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Hemanth Sampath, Sameer Vermani, Richard Van Nee, Santosh P. Abraham, Albert Van Zelst
  • Patent number: 8867514
    Abstract: A system and method of infrastructure service discovery is disclosed. In a particular embodiment, a method includes requesting an access point to issue an Internet protocol address reserved for service discovery messages. In another particular embodiment, a method includes generating a service query message at a mobile station and sending the service query message to an advertisement server via an uncontrolled port. In yet another particular embodiment, a method includes generating, at a mobile station, a layer 2 protocol query encapsulating at least a portion of a layer 3 protocol query in the layer 2 protocol query to generate a modified layer 2 protocol query. The layer 3 protocol query is associated with a service discovery request. The method further includes sending the modified layer 2 protocol query to an access point or to an information server via a wireless network.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: October 21, 2014
    Assignee: Qualcomm Incorporated
    Inventors: Santosh P Abraham, George Cherian
  • Patent number: 8848816
    Abstract: An access point is disclosed herein that comprises a wireless network adapter configured to support a backhaul connection for a peer node to a network; a processing system configured to calculate precoding matrices that define spatial streams; and a transceiver configured to transmit data to the nodes on the spatial streams.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: September 30, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Vinay Sridhara, Sanjiv Nanda, Santosh P. Abraham
  • Patent number: 8832515
    Abstract: A method includes sending a sequence number acknowledgement (SN-ACK) from a first device to a second device. The SN-ACK identifies a last consecutively correctly received data unit and includes a retry bit indicating whether at least one data unit of the plurality of data units was received by the first device subsequent to the last consecutively correctly received data unit. The method also includes, when the retry bit has a first value, sending a block acknowledgement (BA) after sending the SN-ACK. The BA includes a bitmap, where each particular bit of the bitmap indicates whether a corresponding data unit was correctly received. When the retry bit has a second value and one or more of the plurality of data units were incorrectly received by the first device, the first device receives a retransmission of one or more data units without sending the BA to the second device.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: September 9, 2014
    Assignee: Qualcomm Incorporated
    Inventors: Alfred Asterjadhi, Simone Merlin, Maarten Menzo Wentink, Santosh P. Abraham, Zhi Quan
  • Patent number: 8824371
    Abstract: Systems and methods for communicating packets having a plurality of formats are described herein. In some aspects, a signal (SIG) field in the preamble of a packet may indicate whether an extension field, such as an extension SIG field or SIG-B field, is included in the packet. In another aspect, one or more detectors may be used to auto-detect packets formatted as one of at least two different formats based on a short training field (STF) of a received packet. In some aspects, along training field (LTF) in the preamble of a packet may indicate whether the payload is repetition coded.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: September 2, 2014
    Assignee: Qualcomm Incorporated
    Inventors: Sameer Vermani, Santosh P. Abraham, Mohammad Hossein Taghavi Nasrabadi, Vincent K. Jones, Hemanth Sampath
  • Patent number: 8761033
    Abstract: A process for wireless communications is disclosed herein that includes specifying transmission parameters for a plurality of wireless nodes in a single frame; and transmitting the single frame. An apparatus for performing the process is also disclosed herein.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: June 24, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Santosh P. Abraham, Hemanth Sampath, Sameer Vermani
  • Publication number: 20140112405
    Abstract: Methods, apparatus, and computer readable medium manage the utilization of a wireless medium capable of transmitting multiple channels of data simultaneously. A plurality of messages are stored in a queue for transmission on the wireless medium. A wireless medium utilization for transmitting a first message over the multi-channel medium is determined. Each of the messages stored in the queue is delayed based at least in part on the determined wireless medium utilization. In some embodiments, a message may be delayed based at least in part on a state of a connection used by the message. For example, if the connection is in a ramp-up or slow start phase, the message may not be delayed. Messages may also be delayed based on a type of the message. For example, messages generated by interactive applications, such as web browsers or instant messaging applications may not be delayed.
    Type: Application
    Filed: October 23, 2012
    Publication date: April 24, 2014
    Inventors: Amin Jafarian, Santosh P. Abraham, George Cherian, Simone Merlin
  • Patent number: 8665767
    Abstract: An apparatus is disclosed having a receiver configured to receive a request to transmit data from a wireless node in a plurality of wireless nodes; and a transmitter configured to transmit a multi-cast message to a set of wireless nodes in the plurality of wireless nodes to permit data transmission. A method for wireless communications is also disclosed.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: March 4, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Hemanth Sampath, Simone Merlin, Santosh P. Abraham, Maarten Menzo Wentink
  • Patent number: 8654753
    Abstract: An apparatus and method for communications are disclosed. The apparatus may include a transceiver, and a processing system configured to dynamically allocate a plurality of channels to one or more nodes prior to a data transmission from the transceiver to the one or more nodes.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: February 18, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Vinay Sridhara, Santosh P. Abraham, Hemanth Sampath
  • Patent number: 8611940
    Abstract: A method and apparatus for providing a channel access protocol for use in a directional communication network is provided. The method may comprise transmitting channel access information to a plurality of apparatuses, receiving a first directional beam from a second apparatus of the plurality of apparatuses, wherein the first directional beam is determined by the second apparatus based on the received channel access information, determining a second directional beam based on the first directional beam, transmitting a channel reservation to the second apparatus using the second directional beam and establishing a communication session with the second apparatus based on the channel reservation.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: December 17, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Avinash Jain, Hemanth Sampath, Santosh P. Abraham, Mohammad Hossein Taghavi Nasrabadi
  • Publication number: 20130250803
    Abstract: A system and method of infrastructure service discovery is disclosed. In a particular embodiment, a method includes requesting an access point to issue an Internet protocol address reserved for service discovery messages. In another particular embodiment, a method includes generating a service query message at a mobile station and sending the service query message to an advertisement server via an uncontrolled port. In yet another particular embodiment, a method includes generating, at a mobile station, a layer 2 protocol query encapsulating at least a portion of a layer 3 protocol query in the layer 2 protocol query to generate a modified layer 2 protocol query. The layer 3 protocol query is associated with a service discovery request. The method further includes sending the modified layer 2 protocol query to an access point or to an information server via a wireless network.
    Type: Application
    Filed: October 23, 2012
    Publication date: September 26, 2013
    Applicant: Qualcomm Incorporated
    Inventors: Santosh P. Abraham, George Cherian
  • Publication number: 20130227371
    Abstract: A method includes sending a sequence number acknowledgement (SN-ACK) from a first device to a second device. The SN-ACK identifies a last consecutively correctly received data unit and includes a retry bit indicating whether at least one data unit of the plurality of data units was received by the first device subsequent to the last consecutively correctly received data unit. The method also includes, when the retry bit has a first value, sending a block acknowledgement (BA) after sending the SN-ACK. The BA includes a bitmap, where each particular bit of the bitmap indicates whether a corresponding data unit was correctly received. When the retry bit has a second value and one or more of the plurality of data units were incorrectly received by the first device, the first device receives a retransmission of one or more data units without sending the BA to the second device.
    Type: Application
    Filed: July 10, 2012
    Publication date: August 29, 2013
    Applicant: QUALCOMM INCORPORATED
    Inventors: Alfred Asterjadhi, Simone Merlin, Maarten Menzo Wentink, Santosh P. Abraham, Zhi Quan
  • Publication number: 20130195089
    Abstract: A method includes generating, at a low rate enabler (LRE) device, a packet including a preamble having a legacy portion and a super long range (SLR) portion. The legacy portion includes at least one bit to indicate a presence of the SLR portion to at least one SLR-compatible device. The method also includes transmitting the packet to a plurality of devices includes the at least one SLR-compatible device.
    Type: Application
    Filed: January 31, 2012
    Publication date: August 1, 2013
    Applicant: QUALCOMM INCORPORATED
    Inventors: Rahul Tandra, Santosh P. Abraham, Stephen J. Shellhammer
  • Patent number: 8494031
    Abstract: An apparatus including a processing system configured to construct a coding matrix from channel state information and encode a plurality of spatial streams with the coding matrix for transmission to one or more nodes. A method for performing the process is also disclosed herein.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: July 23, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Santosh P. Abraham, Vinay Sridhara, Hemanth Sampath, Sameer Vermani, Vincent Knowles Jones, IV
  • Publication number: 20130176901
    Abstract: A method includes detecting, by a first device, a beacon sent from a second device. The beacon is associated with an ad-hoc wireless network. In response to detecting the beacon, the first device sends to the second device a request for management information associated with the ad-hoc wireless network. The request identifies at least a first information element associated with at least a first portion of the management information and a second information element associated with at least a second portion of the management information. The method further includes receiving from the second device a first wrapper information element that includes at least the first information element.
    Type: Application
    Filed: July 6, 2012
    Publication date: July 11, 2013
    Applicant: QUALCOMM INCORPORATED
    Inventors: Simone Merlin, Santosh P. Abraham
  • Patent number: 8483197
    Abstract: Certain aspects of the present disclosure provide a protocol for SDMA communication between an access point and multiple wireless apparatuses, such as single antenna stations.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: July 9, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Santosh P. Abraham, Vinay Sridhara
  • Patent number: 8477801
    Abstract: Certain aspects of the present disclosure relate to a technique for decreasing a probability of post-backoff collisions that occur during uplink transmissions from multiple user stations (STAs) following completion of downlink transmission from an access point to the STAs.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: July 2, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Vinay Sridhara, Josephine Pui Kwan Chu, Santosh P. Abraham
  • Patent number: 8467345
    Abstract: Certain embodiments provide a method for scheduling packet transmissions in a wireless communications with stations that support spatial division multiple access (SDMA) transmissions. The method generally includes receiving channel state training signals from a plurality of wireless network nodes, constructing a schedule for uplink and downlink packet transmissions for the nodes based on the channel state training signals, and communicating the schedule to the nodes.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: June 18, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Santosh P. Abraham, Alok Aggarwal, Vinay Sridhara, Sameer Vermani