Patents by Inventor Ajoy Singh

Ajoy 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: 20170374598
    Abstract: A wireless communication system is presented for robust mobility management in a HetNet communication system. A source cell can prepare a macro cell and a target small cell as handover candidates during handover decision making and/or preparation. The mobile device is informed about the prepared macro cell and target small cell using radio resource control (RRC) messaging. After receiving a handover command or detecting radio frequency (RF) loss, the mobile device can try to connect with the target small cell. If the mobile device is unable to connect to the target small cell, the UE can fall back and connect to the macro cell.
    Type: Application
    Filed: July 3, 2017
    Publication date: December 28, 2017
    Inventors: Ajoy Singh, Tarik Tabet, Wen Zhao, Aon Mujtaba, Christian W. Mucke
  • Publication number: 20150271216
    Abstract: Described are call handling methods performed by a carrier network or client stations. A method performed by a carrier network includes designating rules for call handling for an account, receiving first and second voice calls for the account, wherein the voice calls may be either an incoming calls or originated calls and handling the first and second voice calls for the account based on the rules. A method performed by a client station includes receiving a first invitation to a first call, responding to the first invitation causing the first call to be active, receiving a second invitation to a second call while the first call remains active and responding to the second invitation causing the second call to be active and the first call to be on hold, the client station is prevented from originating a call when one call is active and one call is on hold.
    Type: Application
    Filed: June 5, 2015
    Publication date: September 24, 2015
    Inventors: Arun MATHIAS, Najeeb ABDULRAHIMAN, Teck Yang LEE, Ajoy SINGH, Vikram YERRABOMMANAHALLI, Rohan MALTHANKAR
  • Publication number: 20150031336
    Abstract: A method performed by a provisioning server, the method including receiving registration data from a client station, transmitting activation data to a telephony service provider, the activation data generated as a function of the registration data, the activation data being used to generate telephony data for the user, the telephony data including access data to utilize a telephony network of the telephony service provider and transmitting the telephony data to the client station, wherein select portions of the telephony data and select portions of the activation data verify the client station as an authenticated device to utilize the telephony network.
    Type: Application
    Filed: July 25, 2014
    Publication date: January 29, 2015
    Inventors: Arun MATHIAS, Najeeb ABDULRAHIMAN, Teck Yang LEE, Ajoy Singh, Vikram YERRABOMMANAHALLI
  • Publication number: 20070115885
    Abstract: A method and system for fast IP handoff of a mobile node (MN) (102) from a first wireless network (106) to a second wireless network (108) is disclosed. The method includes releasing (402) a tunnel between a first access router (AR) (204) and a second FA (206), based on at least one predefined criterion. The method also includes initializing (404) a mobile IP registration procedure with the second FA. The mobile registration procedure is performed by the MN.
    Type: Application
    Filed: November 22, 2005
    Publication date: May 24, 2007
    Inventors: Ajoy Singh, Kadathur Natarajan
  • Publication number: 20060198341
    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: Application
    Filed: November 29, 2005
    Publication date: September 7, 2006
    Inventors: Ajoy Singh, Yogesh Bhatt
  • Publication number: 20060171396
    Abstract: A communication device minimizes an opportunity for a queue stall during a communication session employing a reliable transport protocol by setting a current mode of operation for a Radio Link Protocol (RLP) and, based on a quality of an air interface, switching to an RLP mode of operation different from the current mode during the communication session.
    Type: Application
    Filed: January 24, 2006
    Publication date: August 3, 2006
    Inventors: Ajoy Singh, Mukesh Bhatla, Jay Jayapalan
  • Publication number: 20060133457
    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: Application
    Filed: December 16, 2004
    Publication date: June 22, 2006
    Inventors: Michael Wang, Rajeev Agrawal, Xiangyang Chen, Ajoy Singh, Tyler Brown
  • Patent number: 6941500
    Abstract: A method of performing a modified RLP that reduces the transmission delay in a communications system by detecting frame erasures when they occur. The modified RLP method requests retransmission of erased frames based on pattern violations instead of sequence number violations. The method is preconditioned to expect a particular repeating pattern of frame delivery. For a system running a VSELP vocoder, the method in a receiving device expects to receive full rate or data (F) and DTX (D) frames in a repeating pattern FFDFFDFFD. For a system running an AMBE vocoder, the method in a receiving device expects to receive frames in a repeating pattern DFDFDFDD. The method detects when the pattern is violated and in desired instances immediately requests retransmission of the expected frame.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: September 6, 2005
    Assignee: Motorola, Inc.
    Inventors: John M. Harris, Robert D. Battin, Ajoy Singh
  • Publication number: 20050083868
    Abstract: A home agent (104, 108) and a foreign agent (110, 114) in a wireless communication system (100) establish (202) a special communications channel (140-154) between themselves, the special communications channel dedicated to messages addressed to multiple mobile nodes. The home agent then detects (206) whether a message received by the home agent is addressed to multiple mobile nodes. When the message is addressed to multiple mobile nodes, the home agent sends (208) the message to the foreign agent through the special communications channel.
    Type: Application
    Filed: October 15, 2003
    Publication date: April 21, 2005
    Inventors: Ajaykumar Idnani, Timothy Wilson, Ajoy Singh
  • Publication number: 20030033568
    Abstract: A method of performing a modified RLP that reduces the transmission delay in a communications system by detecting frame erasures when they occur. The modified RLP method requests retransmission of erased frames based on pattern violations instead of sequence number violations. The method is preconditioned to expect a particular repeating pattern of frame delivery. For a system running a VSELP vocoder, the method in a receiving device expects to receive full rate or data (F) and DTX (D) frames in a repeating pattern FFDFFDFFD. For a system running an AMBE vocoder, the method in a receiving device expects to receive frames in a repeating pattern DFDFDFDD. The method detects when the pattern is violated and in desired instances immediately requests retransmission of the expected frame.
    Type: Application
    Filed: August 10, 2001
    Publication date: February 13, 2003
    Inventors: John M. Harris, Robert D. Battin, Ajoy Singh
  • Publication number: 20020196743
    Abstract: An apparatus and method for controlling loss of data packets in a system, wherein the packets are transmitted from a source to a destination via a packet forwarder over a plurality of links having different bandwidths. The packet forwarder actively monitors the average number of packets in the first buffer and when the average number rises above a pre-defined threshold, the packet forwarder signals the source to stop sending data packets. The source will then compress and store packets it receives from a network in a second buffer until the source can again transmit the compressed packets to the packet forwarder. When the source's buffer becomes full, it will discard any packets it receives from the network before performing compression. When the average number of packets in the first buffer drops below the threshold, the packet forwarder signals the source to resume sending compressed packets for transfer to the destination.
    Type: Application
    Filed: May 30, 2002
    Publication date: December 26, 2002
    Inventors: Sebastian Thalanany, Ajoy Singh