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).
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Patent number: 9479979Abstract: 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: GrantFiled: June 29, 2012Date of Patent: October 25, 2016Assignee: Nokia Solutions and Networks OyInventors: Eric Drury, Amit Malik, Shreesha Ramanna
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Publication number: 20140004859Abstract: 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: ApplicationFiled: June 29, 2012Publication date: January 2, 2014Inventors: Eric Drury, Amit Malik, Shreesha Ramanna
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Patent number: 8320326Abstract: 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: GrantFiled: November 14, 2005Date of Patent: November 27, 2012Assignee: Motorola Mobility LLCInventors: Shreesha Ramanna, Vivek G. Naik, Dan Zhang
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Patent number: 8265057Abstract: 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: GrantFiled: March 31, 2004Date of Patent: September 11, 2012Assignee: Motorola Mobility LLCInventors: Dan Zhang, Vivek G. Naik, Shreesha Ramanna
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Patent number: 7787421Abstract: 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: GrantFiled: November 14, 2005Date of Patent: August 31, 2010Assignee: Motorola, Inc.Inventors: Shreesha Ramanna, Vivek G. Naik, Dan Zhang
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Patent number: 7710987Abstract: 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: GrantFiled: December 14, 2006Date of Patent: May 4, 2010Assignee: Motorola, Inc.Inventors: Jay P. Jayapalan, Lee M. Proctor, Shreesha Ramanna, Steven D. Upp, James A. Butler, Paul M. Erickson
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Patent number: 7620017Abstract: 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: GrantFiled: September 13, 2005Date of Patent: November 17, 2009Assignee: Motorola, Inc.Inventors: Shahab M. Sayeedi, Shreesha Ramanna
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Publication number: 20090136043Abstract: 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: ApplicationFiled: November 26, 2007Publication date: May 28, 2009Applicant: MOTOROLA, INC.Inventors: Shreesha Ramanna, Gino Anthony Scribano, Anda Mihaela Farcasanu
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Patent number: 7512110Abstract: 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: GrantFiled: September 14, 2005Date of Patent: March 31, 2009Assignee: Motorola, Inc.Inventors: Shahab M. Sayeedi, Shreesha Ramanna
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Patent number: 7480297Abstract: 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: GrantFiled: December 20, 2004Date of Patent: January 20, 2009Assignee: Motorola, Inc.Inventors: Shreesha Ramanna, Jay P. Jayapalan, Dan Zhang
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Publication number: 20080281978Abstract: 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: ApplicationFiled: April 14, 2008Publication date: November 13, 2008Applicant: MOTOROLA, INC.Inventors: Dah-Lain Almon Tang, Shreesha Ramanna
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Publication number: 20080242264Abstract: 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: ApplicationFiled: March 30, 2007Publication date: October 2, 2008Applicant: MOTOROLA, INC.Inventors: AMIT MALIK, SHREESHA RAMANNA
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Publication number: 20080144574Abstract: 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: ApplicationFiled: December 14, 2006Publication date: June 19, 2008Applicant: MOTOROLA, INC.Inventors: Jay P. Jayapalan, Lee M. Proctor, Shreesha Ramanna, Steven D. Upp, James A. Butler, Paul M. Erickson
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Publication number: 20070237114Abstract: 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: ApplicationFiled: March 30, 2006Publication date: October 11, 2007Inventors: Neeraj C. Mehta, Shreesha Ramanna
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Patent number: 7197328Abstract: 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: GrantFiled: March 1, 2005Date of Patent: March 27, 2007Assignee: Motorola, Inc.Inventors: Thomas B. Hart, Ronald T. Crocker, John M. Harris, Shreesha Ramanna
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Patent number: 7113997Abstract: 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: GrantFiled: May 25, 2005Date of Patent: September 26, 2006Assignee: Motorola, Inc.Inventors: Jay Jayapalan, Shreesha Ramanna
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Publication number: 20060199603Abstract: 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: ApplicationFiled: March 1, 2005Publication date: September 7, 2006Inventors: Thomas Hart, Ronald Crocker, John Harris, Shreesha Ramanna
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Publication number: 20060153119Abstract: 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: ApplicationFiled: December 20, 2004Publication date: July 13, 2006Inventors: Shreesha Ramanna, Jay Jayapalan, Dan Zhang
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Publication number: 20060126564Abstract: 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: ApplicationFiled: November 14, 2005Publication date: June 15, 2006Inventors: Shreesha Ramanna, Vivek Naik, Dan Zhang
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Publication number: 20060109818Abstract: 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: ApplicationFiled: November 14, 2005Publication date: May 25, 2006Inventors: Shreesha Ramanna, Vivek Naik, Dan Zhang