Patents by Inventor Ajoy K. Singh

Ajoy K. Singh 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: 20130065562
    Abstract: A method includes sending a request to a user indicating options to modify a quality of experience for one or more application flows between a radio network and a mobile node used by the user. The request indicates the user should select one of the following: declining an option to upgrade an existing service to a new service able to support the one or more application flows with a higher quality of experience than supported by the existing service; or accepting an option to upgrade the existing service to the new service. In response to receiving an indication the user selected the option to upgrade the existing service, performing one or more actions to upgrade the existing service to the new service. The option to upgrade the existing service can include an option of receiving advertisements for the new service or paying extra for the new service.
    Type: Application
    Filed: September 9, 2011
    Publication date: March 14, 2013
    Inventor: Ajoy K. Singh
  • Publication number: 20090248841
    Abstract: A method (500) and a system (300) for implementing point-to-point communications. The method can include identifying at least a first portion (348, 350) of a prefix (344, 346) of a network address, the prefix corresponding to a particular topological region (326, 328) of a communications network (302). The method further can include generating a unique prefix (360, 362) by updating the prefix with an identifier (356, 358) that is unique within the topological region of the communications network, and assigning the unique prefix to a node (304-314) of the communications network.
    Type: Application
    Filed: March 28, 2008
    Publication date: October 1, 2009
    Applicant: MOTOROLA, INC.
    Inventors: Paula Tjandra, Anand S. Bedekar, Philip R. Roberts, Ajoy K. Singh
  • Patent number: 7573964
    Abstract: A method (1700) and apparatus (1801) provide channel estimation with extended bandwidth filters. Antenna (1813) receives a signal such as a pilot signal and detects a bandwidth associated with the pilot signal in a detector (320). One of a plurality of filters (603, 605, 607, and 609) including extended bandwidth filters (311) and a default filter (305) can be selected by a selector (617). If the detector detects activity associated with a wider bandwidth, the filter associated with the wider bandwidth is selected over the presently selected filter. If no activity is detected, the default filter is selected.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: August 11, 2009
    Assignee: Motorola, Inc.
    Inventors: Michael M. Wang, Rajeev Agrawal, Xiangyang Chen, Ajoy K. Singh, Tyler A. Brown
  • Patent number: 7567535
    Abstract: Various embodiments are described to address the need for an apparatus and method that improves link layer handoff by addressing the packet-loss problem existing today. An intermediate buffer management layer (IBML) (201, 211) is introduced below layer 3 of an OSI-based communications interface. The IBML buffers copies of OSI layer 3 packets being transmitted via lower layers (205, 215) of the interface and manages the buffer contents using indications the IBML receives from one or more of the lower layers. When the IBML receives an indication that a link layer hard handoff is proceeding, the IBML transfers the presently buffered packets to a corresponding IBML (202, 212) in the target communications interface. This sub-layer 3 buffer transfer enables the target communications interface to reduce packet-loss associated with the hard handoff.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: July 28, 2009
    Assignee: Motorola, Inc.
    Inventors: Ajoy K. Singh, Yogesh B. Bhatt
  • Publication number: 20090168680
    Abstract: Multiple multicast data stream delivery in a communication network includes a first step (700) of providing a proxy agent for a mobile node. A next step (702) includes determining a multicast group the mobile node intends to join. A next step (704) includes receiving feedback about radio link characteristics of the mobile node by the proxy agent. A next step (706) includes using the radio link characteristics by the proxy agent on behalf of the mobile node to join or remove the mobile node from the group.
    Type: Application
    Filed: December 27, 2007
    Publication date: July 2, 2009
    Applicant: MOTOROLA, INC.
    Inventors: Ajoy K. Singh, Ivan N. Vukovic
  • Publication number: 20080080559
    Abstract: A method and system for communicating header compression layer control messages. Header compression control messages are generated by a header compression layer and are sent through at least one link layer data packet by a link transport communications protocol layer to a remote receiver. The link transport communications protocol layer monitors receipt of link layer data packet acknowledgements that are received from the link transport communications protocol layer of the remote receiver for the at least one link layer data packet. The link transport communications protocol layer determines successful transmission of the header compression control message and provides, to the header compression layer, an indication of successful header compression control message transmission.
    Type: Application
    Filed: October 2, 2006
    Publication date: April 3, 2008
    Applicant: MOTOROLA, INC.
    Inventor: Ajoy K. Singh
  • Publication number: 20080026756
    Abstract: A wireless communication system that implements cell reselections selects a timing of a cell reselection in association with a mobile station (MS) by transferring, by a layer at least as high as Layer 3 to a cell reselection decision function residing in a layer lower than Layer 3, information indicating whether a present time is a more favorable time or a less favorable time for a cell reselection and initiating, by the cell reselection decision function, a cell reselection at a time based on the information received from the layer at least as high as Layer 3. In another embodiment of the invention, the transferred information may instead, or in addition, indicate a future time at which to perform a cell reselection. By selectively timing a cell reselection, an impact of a cell reselection on an application being executed by the MS is minimized.
    Type: Application
    Filed: July 19, 2007
    Publication date: January 31, 2008
    Applicant: MOTOROLA, INC.
    Inventors: John M. Harris, Ajoy K. Singh, Stavros Tzavidas
  • Publication number: 20070160049
    Abstract: A communication system provides for an expedited Mobile Internet Protocol handoff by allowing a mobile station that is engaged in a communication session with a first access network to obtain Internet Protocol connectivity information associated with a second access network via the first access network. A tunnel is then established between the mobile station and the second access network via the first access network based on the Internet Protocol connectivity information and the mobile station obtains Internet Protocol configuration parameters from the second access network via the established tunnel. By obtaining the Internet Protocol configuration parameters associated with the second access network via the first access network instead of waiting until an air interface connection has been established with the second access network, the mobile station may be more expeditiously handed off to the second access network in the event that such a handoff determination is made.
    Type: Application
    Filed: January 2, 2007
    Publication date: July 12, 2007
    Applicant: MOTOROLA, INC.
    Inventors: Qiaobing Xie, Yogesh B. Bhatt, Ajoy K. Singh
  • Patent number: 6993335
    Abstract: An apparatus and method for performing Mobile/IP handoff between different access technologies. Associated with each access technology are two thresholds, a Low Water Mark and a High Water Mark. The method uses these water marks to its access technology selection in a particular environment. Using the method, a mobile node 102 remains on its preferred network when the signal strength on the preferred network (interface) is above the low water mark. When the signal strength on the preferred network drops below the high water mark, the method calculates the low water mark for the network. When the signal strength on the preferred network drops below the low water mark (LWM), the method initiates handoff to the next available network that meets certain conditions. The method initiates handoff back to the preferred network when the signal strength measurement on the preferred network is again above the high water mark.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: January 31, 2006
    Assignee: Motorola, Inc.
    Inventors: Kadathur S. Natarajan, Karthikeyan Arumugam, Muddasani S. Reddy, Mary M. Valdivia, Ajoy K. Singh
  • Publication number: 20040148427
    Abstract: To address the need for an apparatus and method of PPP link handoff that reduces setup time and air interface bandwidth requirements, an approach to PPP context transfer is disclosed. This approach can cut the number of PPP establishment messages by 50 to 100% and can save a significant amount of time in PPP state machine transitions, due to the multiphase nature of PPP. Generally, the old AR (306) transfers most of its information about its PPP link with a mobile (330) to the new AR (305). After the transfer of the PPP variables is complete, the new AR is able to omit negotiation of many already known PPP parameters from the PPP re-establishment procedure with the mobile. The old AR starts transferring the mobile's PPP state to the new AR based either on an internal trigger, a request from the new AR, or a request from the mobile.
    Type: Application
    Filed: November 24, 2003
    Publication date: July 29, 2004
    Inventors: Madjid F. Nakhjiri, Shreesha Ramanna, Ajoy K. Singh
  • Publication number: 20040097230
    Abstract: An apparatus and method for performing Mobile/IP handoff between different access technologies. Associated with each access technology are two thresholds, a Low Water Mark and a High Water Mark. The method uses these water marks to its access technology selection in a particular environment. Using the method, a mobile node 102 remains on its preferred network when the signal strength on the preferred network (interface) is above the low water mark. When the signal strength on the preferred network drops below the high water mark, the method calculates the low water mark for the network. When the signal strength on the preferred network drops below the low water mark (LWM), the method initiates handoff to the next available network that meets certain conditions. The method initiates handoff back to the preferred network when the signal strength measurement on the preferred network is again above the high water mark.
    Type: Application
    Filed: November 15, 2002
    Publication date: May 20, 2004
    Inventors: Kadathur S. Natarajan, Karthikeyan Arumugam, Muddasani S. Reddy, Mary M. Valdivia, Ajoy K. Singh