Patents by Inventor Shreesha Ramanna

Shreesha Ramanna 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: 9479979
    Abstract: A method is disclosed that includes selecting at an apparatus a user equipment for an automatic neighbor relations measurement based on a determination one or more parameters associated with the user equipment meet one or more scenarios. The method includes initiating by the apparatus an automatic neighbor relations measurement procedure for the selected user equipment. The method includes awaiting at the apparatus for a conclusion of the initiated automatic neighbor relations measurement procedure. Apparatus and program products are also disclosed.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: October 25, 2016
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Eric Drury, Amit Malik, Shreesha Ramanna
  • Publication number: 20140004859
    Abstract: A method is disclosed that includes selecting at an apparatus a user equipment for an automatic neighbor relations measurement based on a determination one or more parameters associated with the user equipment meet one or more scenarios. The method includes initiating by the apparatus an automatic neighbor relations measurement procedure for the selected user equipment. The method includes awaiting at the apparatus for a conclusion of the initiated automatic neighbor relations measurement procedure. Apparatus and program products are also disclosed.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 2, 2014
    Inventors: Eric Drury, Amit Malik, Shreesha Ramanna
  • Patent number: 8320326
    Abstract: A communication system provides for a handoff of a hybrid mobile station (MS) between a legacy network implementing a non-high rate packet data (non-HRPD) communication technology and a network implementing a high rate packet data (HRPD) communication technology. In one embodiment, the legacy network receives a handoff trigger and redirects the MS to the HRPD network. In other embodiments, the legacy network (or HRPD network) receives a handoff trigger, obtains an allocation of HRPD network (or non-HRPD network) resources from the HRPD network (or non-HRPD network), and informs the MS of the allocated HRPD network (or non-HRPD network) resources. Subsequent to the establishment by the HRPD network (or non-HRPD network) of a traffic channel with the MS, the non-HRPD network (or HRPD network) releases non-HRPD network (or HRPD network) RF resources associated with the MS. In still other embodiments, the handoffs may be controlled by a Mobile Switching Center.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: November 27, 2012
    Assignee: Motorola Mobility LLC
    Inventors: Shreesha Ramanna, Vivek G. Naik, Dan Zhang
  • Patent number: 8265057
    Abstract: A method in wireless communication devices, for example, a cellular handset, including receiving a network control message, forcing an active packet session into a dormancy state in response to receiving the network control message, suspending a dormancy timer after receiving the network control message, and starting the dormancy timer upon completion of an event, for example, a voice pre-emption, that precipitated suspension of the active packet session.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: September 11, 2012
    Assignee: Motorola Mobility LLC
    Inventors: Dan Zhang, Vivek G. Naik, Shreesha Ramanna
  • Patent number: 7787421
    Abstract: A communication system provides for a handoff of a hybrid mobile station (MS) between a legacy network implementing a non-high rate packet data (non-HRPD) communication technology and a network implementing a high rate packet data (HRPD) communication technology. In one embodiment, the legacy network receives a handoff trigger and redirects the MS to the HRPD network. In other embodiments, the legacy network (or HRPD network) receives a handoff trigger, obtains an allocation of HRPD network (or non-HRPD network) resources from the HRPD network (or non-HRPD network), and informs the MS of the allocated HRPD network (or non-HRPD network) resources. Subsequent to the establishment by the HRPD network (or non-HRPD network) of a traffic channel with the MS, the non-HRPD network (or HRPD network) releases non-HRPD network (or HRPD network) RF resources associated with the MS. In still other embodiments, the handoffs may be controlled by a Mobile Switching Center.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: August 31, 2010
    Assignee: Motorola, Inc.
    Inventors: Shreesha Ramanna, Vivek G. Naik, Dan Zhang
  • Patent number: 7710987
    Abstract: An apparatus and method for efficient transitions between operating states in a communication network, includes a preliminary step of having a mobile station in a Dormant or Idle state. A next step includes requiring a data transfer, either to or from the mobile station. A next step includes transitioning the mobile station from the Dormant or Idle to an Active state. A next step includes transferring a bearer path context for the data from a Paging Control Function (PCF) to an RF Bearer Function. This can include creating a tunnel using an Inter-PCF handoff procedure. The result is a direct connection between an RF Bearer Function and an IP Router, without the PCF being in the data path.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: May 4, 2010
    Assignee: Motorola, Inc.
    Inventors: Jay P. Jayapalan, Lee M. Proctor, Shreesha Ramanna, Steven D. Upp, James A. Butler, Paul M. Erickson
  • Patent number: 7620017
    Abstract: Various embodiments are described to address the need for reduced handoff delays associated with inter-AN (access network) HRPD (High Rate Packet Data)/1XEV-DO handoffs. The disclosed approach enables an AT (101) with an active packet data session to perform a hard handoff from a source AN (121, 221) to a target AN (122, 222) without having to force the data session dormant. Unlike known hard handoff approaches that involve coordination by a mobile switching center (MSC), the disclosed approach uses peer-to-peer signaling with no MSC involvement, such as that between source and target ANs or PCFs (131, 132, 231, 232). For example, data session information at the source side is transferred via new A13 messaging to the source entity's target-side peer to otherwise reduce signaling between the source and target equipment.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: November 17, 2009
    Assignee: Motorola, Inc.
    Inventors: Shahab M. Sayeedi, Shreesha Ramanna
  • Publication number: 20090136043
    Abstract: A method and apparatus are provided that enable a common key distribution and management system to be used for distributing and managing the keys that are used for authenticating, authorizing and ciphering exchanges between a wireless device and an ANP and that are used for authentication, authorizing and ciphering exchanges between wireless device and the SNP.
    Type: Application
    Filed: November 26, 2007
    Publication date: May 28, 2009
    Applicant: MOTOROLA, INC.
    Inventors: Shreesha Ramanna, Gino Anthony Scribano, Anda Mihaela Farcasanu
  • Patent number: 7512110
    Abstract: Various embodiments are described to address the need for reduced handoff delays associated with inter-AN (access network) HRPD (High Rate Packet Data)/1XEV-DO handoffs. The disclosed approach enables an AT (101) with an active packet data session to perform a hard handoff from a source AN (121, 221) to a target AN (122, 222) without having to force the data session dormant. Unlike known hard handoff approaches that involve coordination by a mobile switching center (MSC), the disclosed approach uses peer-to-peer signaling with no MSC involvement, such as that between source and target ANs or PCFs (131, 132, 231, 232). For example, data session information at the source side is transferred via new A13 messaging to the source entity's target-side peer to otherwise reduce signaling between the source and target equipment.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: March 31, 2009
    Assignee: Motorola, Inc.
    Inventors: Shahab M. Sayeedi, Shreesha Ramanna
  • Patent number: 7480297
    Abstract: A system and method of managing the bandwidth of transmitted communications in a wireless network where a data packet (108) is received. The data packet (108) comprises a protocol identifier (110). At least one primary pattern identifier (110) is stored in a memory (103). The protocol identifier (110) is compared (204, 206) to the at least one primary pattern identifier and a data packet type is determined (210) based at least in part upon the comparing. A resource allocation scheme is selected from amongst a plurality of resource allocation schemes for application to a wireless network based at least in part upon the data packet type.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: January 20, 2009
    Assignee: Motorola, Inc.
    Inventors: Shreesha Ramanna, Jay P. Jayapalan, Dan Zhang
  • Publication number: 20080281978
    Abstract: Various embodiments are described, some of which may be able to better support real-time services during mobility events in communication networks. In general in these embodiments, multiple tunnels are established via different network nodes within the communication network to support data transfer in both a forward direction to an access terminal (AT) and a reverse direction from the AT. Data transfer in the forward direction is supported for a period of time via a first tunnel (140, 150) of the multiple tunnels, while data transfer in the reverse direction is supported via a second, different tunnel (160) during the same period of time.
    Type: Application
    Filed: April 14, 2008
    Publication date: November 13, 2008
    Applicant: MOTOROLA, INC.
    Inventors: Dah-Lain Almon Tang, Shreesha Ramanna
  • Publication number: 20080242264
    Abstract: A system includes an access network and an authentication server. The access network: requests and receives a hardware ID for a terminal attempting access to a network that provides access to a service; constructs a user ID that includes the hardware ID; forwards the user ID for use in a first authentication process for the terminal; and receives a response that indicates an authorization status for the terminal. The authentication server: receives the user ID; determines, from the user ID, the authorization status for the terminal, which identifies at least one of whether the terminal is authorized to use the service and whether the terminal is local or roaming; and provides the response to the access network, which indicates the authorization status.
    Type: Application
    Filed: March 30, 2007
    Publication date: October 2, 2008
    Applicant: MOTOROLA, INC.
    Inventors: AMIT MALIK, SHREESHA RAMANNA
  • Publication number: 20080144574
    Abstract: An apparatus and method for efficient transitions between operating states in a communication network, includes a preliminary step of having a mobile station in a Dormant or Idle state. A next step includes requiring a data transfer, either to or from the mobile station. A next step includes transitioning the mobile station from the Dormant or Idle to an Active state. A next step includes transferring a bearer path context for the data from a Paging Control Function (PCF) to an RF Bearer Function. This can include creating a tunnel using an Inter-PCF handoff procedure. The result is a direct connection between an RF Bearer Function and an IP Router, without the PCF being in the data path.
    Type: Application
    Filed: December 14, 2006
    Publication date: June 19, 2008
    Applicant: MOTOROLA, INC.
    Inventors: Jay P. Jayapalan, Lee M. Proctor, Shreesha Ramanna, Steven D. Upp, James A. Butler, Paul M. Erickson
  • Publication number: 20070237114
    Abstract: A High Rate Packet Data (HRPD) wireless access network station (400) that accepting a data session handoff from a CDMA2000 1x base station. The wireless access network station (400) receives, from an access terminal (120), a location notification message with a valid Previous Access Network Identifier (PANID). The wireless access network station (400) further receives session parameters from a remote access network having a previous data session with the access terminal and determines if the PANID is consistent with the session parameters received from the remote access network. The wireless access network station (400) further has a data session controller (402,416) that, in response to determining the PANID is not consistent with the session parameters, establishes an RF traffic channel and connects a data session between the access terminal (120) and a Packet Data Serving Node (208) based upon the PANID received from the access terminal.
    Type: Application
    Filed: March 30, 2006
    Publication date: October 11, 2007
    Inventors: Neeraj C. Mehta, Shreesha Ramanna
  • Patent number: 7197328
    Abstract: A method and computer program for initiating a message to a radio access network include steps of: (404) detecting a request to transmit a probe message from a transmitter over an access channel to a radio access network; (406) calculating a transmit power for the probe message; (408) checking a condition that may result in failure to receive the probe message over the access channel by the radio access network; and (410) when the condition is determined to be true, then (412) reducing a message length of the probe message to generate a shorter probe message; (414) recalculating the transmit power to send the shorter probe message; and (416) transmitting the shorter probe message over the access channel at the recalculated transmit power.
    Type: Grant
    Filed: March 1, 2005
    Date of Patent: March 27, 2007
    Assignee: Motorola, Inc.
    Inventors: Thomas B. Hart, Ronald T. Crocker, John M. Harris, Shreesha Ramanna
  • Patent number: 7113997
    Abstract: A PDSN (18) includes a usage recording agent (19) for distinguishing between nonbillable and billable activity of a subscriber device 12. The usage recording agent (19) creates a record of a total number of bytes transmitted from the PDSN (18) to the RAN (14), counts bytes that are retransmitted from the PDSN (18) for providing a retransmitted byte total, and forwards the retransmitted byte total and the record to an AAA (28) so that the record can be adjusted in accordance with the retransmitted byte total.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: September 26, 2006
    Assignee: Motorola, Inc.
    Inventors: Jay Jayapalan, Shreesha Ramanna
  • Publication number: 20060199603
    Abstract: A method and computer program for initiating a message to a radio access network include steps of: (404) detecting a request to transmit a probe message from a transmitter over an access channel to a radio access network; (406) calculating a transmit power for the probe message; (408) checking a condition that may result in failure to receive the probe message over the access channel by the radio access network; and (410) when the condition is determined to be true, then (412) reducing a message length of the probe message to generate a shorter probe message; (414) recalculating the transmit power to send the shorter probe message; and (416) transmitting the shorter probe message over the access channel at the recalculated transmit power.
    Type: Application
    Filed: March 1, 2005
    Publication date: September 7, 2006
    Inventors: Thomas Hart, Ronald Crocker, John Harris, Shreesha Ramanna
  • Publication number: 20060153119
    Abstract: A system and method of managing the bandwidth of transmitted communications in a wireless network where a data packet (108) is received. The data packet (108) comprises a protocol identifier (110). At least one primary pattern identifier (110) is stored in a memory (103). The protocol identifier (110) is compared (204, 206) to the at least one primary pattern identifier and a data packet type is determined (210) based at least in part upon the comparing. A resource allocation scheme is selected from amongst a plurality of resource allocation schemes for application to a wireless network based at least in part upon the data packet type.
    Type: Application
    Filed: December 20, 2004
    Publication date: July 13, 2006
    Inventors: Shreesha Ramanna, Jay Jayapalan, Dan Zhang
  • Publication number: 20060126564
    Abstract: A communication system provides for a handoff of a hybrid mobile station (MS) between a legacy network implementing a non-high rate packet data (non-HRPD) communication technology and a network implementing a high rate packet data (HRPD) communication technology. In one embodiment, the legacy network receives a handoff trigger and redirects the MS to the HRPD network. In other embodiments, the legacy network (or HRPD network) receives a handoff trigger, obtains an allocation of HRPD network (or non-HRPD network) resources from the HRPD network (or non-HRPD network), and informs the MS of the allocated HRPD network (or non-HRPD network) resources. Subsequent to the establishment by the HRPD network (or non-HRPD network) of a traffic channel with the MS, the non-HRPD network (or HRPD network) releases non-HRPD network (or HRPD network) RF resources associated with the MS. In still other embodiments, the handoffs may be controlled by a Mobile Switching Center.
    Type: Application
    Filed: November 14, 2005
    Publication date: June 15, 2006
    Inventors: Shreesha Ramanna, Vivek Naik, Dan Zhang
  • Publication number: 20060109818
    Abstract: A communication system provides for a handoff of a hybrid mobile station (MS) between a legacy network implementing a non-high rate packet data (non-HRPD) communication technology and a network implementing a high rate packet data (HRPD) communication technology. In one embodiment, the legacy network receives a handoff trigger and redirects the MS to the HRPD network. In other embodiments, the legacy network (or HRPD network) receives a handoff trigger, obtains an allocation of HRPD network (or non-HRPD network) resources from the HRPD network (or non-HRPD network), and informs the MS of the allocated HRPD network (or non-HRPD network) resources. Subsequent to the establishment by the HRPD network (or non-HRPD network) of a traffic channel with the MS, the non-HRPD network (or HRPD network) releases non-HRPD network (or HRPD network) RF resources associated with the MS. In still other embodiments, the handoffs may be controlled by a Mobile Switching Center.
    Type: Application
    Filed: November 14, 2005
    Publication date: May 25, 2006
    Inventors: Shreesha Ramanna, Vivek Naik, Dan Zhang