Patents by Inventor Suryanarayanan Ramamurthy
Suryanarayanan Ramamurthy 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: 9237549Abstract: A method and apparatus for managing page-response intervals. When a network entity receives a paging trigger signal, the entity determines a page-response interval to use for paging the mobile station, based on one or more factors such as (i) whether the communication is to be provided to the mobile station over the same air interface and/or same air interface protocol that will carry the paging to the mobile station and/or (ii) what network, interface, or other entity the trigger signal comes from and/or what network communication module receives the trigger signal. The network entity then uses the determined page-response interval when paging the mobile station, waiting that determined period of time after each page attempt before attempting to page again or before concluding that the paging effort failed.Type: GrantFiled: November 27, 2012Date of Patent: January 12, 2016Assignee: Sprint Spectrum L.P.Inventors: Maulik K. Shah, Siddharth S. Oroskar, Jasinder P. Singh, Anoop K. Goyal, Suryanarayanan Ramamurthy, Saravana Velusamy
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Patent number: 9220118Abstract: A mobility management entity (MME) may receive a request that identifies an access point name (APN) for a packet data connection for a wireless communication device (WCD). The APN may be authorized by the WCD according to a service profile in a home subscriber server (HSS), and the APN may be associated with a subscribed packet data policy. However, if the MME determines that it cannot validate the request (e.g., because the HSS is unreachable or non-responsive), the MME may send to a packet gateway a session request that identifies the WCD and includes a dummy APN. The dummy APN is associated with a substitute packet data policy that differs from the subscribed packet data policy. Based on the session request including the dummy APN, the packet gateway may establish a packet data session for the WCD in accordance with the substitute packet data policy.Type: GrantFiled: August 7, 2013Date of Patent: December 22, 2015Assignee: Sprint Spectrum L.P.Inventors: Suryanarayanan Ramamurthy, Saravana Velusamy
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Patent number: 9210533Abstract: A wireless base station schedules allocated resource blocks from an OFDM resource block structure to a UEs and holds unallocated resource blocks from the OFDM resource block structure for machines. The base station decodes wireless OFDM signals based on the OFDM resource block structure to obtain user data from the UEs using the allocated resource blocks and to obtain machine data from the machine devices using the unallocated resource blocks. The base station processes the machine data from the unallocated resource blocks to validate authorization marks in individual resource blocks. The base station transfers portions of the machine data having the valid authorization marks for delivery. The base station inhibits the transfer of machine data not having the valid authorization marks.Type: GrantFiled: November 15, 2013Date of Patent: December 8, 2015Assignee: Sprint Communications Company L.P.Inventors: Manoj Monga, Saravana Velusamy, Suryanarayanan Ramamurthy
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Patent number: 9185584Abstract: In normal operation, a primary signaling controller in a first RAN manages bearer connectivity and tracking area updates for a UE and further interfaces with a second RAN over a primary signaling interface to facilitate inter-RAN signaling related to transition of the UE from being served by the first RAN to being served by the second RAN, such as circuit-switched fallback signaling. Upon detecting failure of the primary signaling interface, the first RAN is dynamically reconfigured to have such inter-RAN signaling for the UE pass over a secondary signaling interface between the second RAN and a secondary signaling controller of the first RAN, while the primary signaling controller continues to manage bearer connectivity and tracking area updates for the UE.Type: GrantFiled: June 6, 2013Date of Patent: November 10, 2015Assignee: Sprint Spectrum L.P.Inventors: Suryanarayanan Ramamurthy, Saravana Velusamy, Deveshkumar Rai
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Patent number: 9107218Abstract: A method and system for selectively allowing uplink wireless transmission from a wireless communication device (WCDs) to a base station without a resource block assignment. Certain resource blocks may be designated for this use but still available for assignment to particular WCDs. When the base station receives data in such a resource block without having assigned the resource block for use by any WCD, the base station may determine based on a class or other identity of the transmitting WCD whether to forward the received data for transmission onto a transport network or rather whether to discard the data. The base station may then act accordingly. This arrangement may help improve performance in a scenario where many WCDs in a coverage area, such as embedded WCDs, would tend to transmit small amounts of data often, but the disclosed arrangement is more generally applicable as well.Type: GrantFiled: August 6, 2013Date of Patent: August 11, 2015Assignee: Sprint Spectrum L.P.Inventors: Rajat Kumar, Suryanarayanan Ramamurthy, Talat Jamshidi
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Patent number: 8989124Abstract: Management of bearers in a communication system. A network may establish for a user equipment device (UE) a first bearer of a first type. Thereafter, upon establishment of a bearer of a second type for the UE, the network may automatically release the first bearer of the first type. In turn, when the UE finishes communication on the bearer of the second type, the network may not only release that bearer of the second type but may automatically establish for the UE a second bearer of the first type.Type: GrantFiled: March 8, 2013Date of Patent: March 24, 2015Assignee: Sprint Spectrum L.P.Inventors: Suryanarayanan Ramamurthy, Saravana Velusamy
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Patent number: 8983530Abstract: Embodiments disclosed herein provide systems and methods to provide data session continuity between wireless networks. In a particular embodiment, a method provides receiving a request to create a data session for a wireless communication device exchanging communications with a wireless local area network via a wireless access point. The method further provides determining an access point identifier for the wireless access point and selecting a control system for a cellular communication network of a plurality of cellular communication networks based on the access point identifier. The method further provides anchoring the data session to the control system.Type: GrantFiled: December 11, 2013Date of Patent: March 17, 2015Assignee: Sprint Communications Company L.P.Inventors: Wen Xue, Suryanarayanan Ramamurthy, Jay Douglas Cole
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Patent number: 8855676Abstract: Disclosed is a method for providing satellite assistance data to facilitate determination of the location of a mobile station, particularly for instance a mobile station served by a femtocell. When a positioning server receives a request for the location of a mobile station, the positioning server will determine from the request the mobile station is served by a femtocell and that the positioning server should query a femtocell server for seed data, or the positioning server may otherwise determine from the request that the positioning server should query the femtocell server for seed data. The seed data would preferably be geographic coordinates of a femtocell with which the mobile station is registered. The positioning server may then use that seed data to facilitate obtaining satellite assistance data from a base station almanac, and the positioning serve may provide the satellite assistance data to the mobile station to facilitate location determination.Type: GrantFiled: March 24, 2011Date of Patent: October 7, 2014Assignee: Sprint Spectrum L.P.Inventors: Scott B. Wilson, Suryanarayanan Ramamurthy, Manoj Monga, Victor M. Gress
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Publication number: 20140098790Abstract: Embodiments disclosed herein provide systems and methods to provide data session continuity between wireless networks. In a particular embodiment, a method provides receiving a request to create a data session for a wireless communication device exchanging communications with a wireless local area network via a wireless access point. The method further provides determining an access point identifier for the wireless access point and selecting a control system for a cellular communication network of a plurality of cellular communication networks based on the access point identifier. The method further provides anchoring the data session to the control system.Type: ApplicationFiled: December 11, 2013Publication date: April 10, 2014Applicant: Sprint Communications Company L.P.Inventors: Wen Xue, Suryanarayanan Ramamurthy, Jay Douglas Cole
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Patent number: 8674877Abstract: A wireless communication device transmits a position assistance request. A system database receives and processes the position assistance request to determine a time of the request and a location of the wireless communication device and processes the time and the location to determine if the system database stores positioning satellite information for the time and the location. The system database transfers the positioning satellite information to the wireless communication device if the positioning satellite information is for the time and the location. The system database transfers the position assistance request to a position determining entity if the system database does not store the positioning satellite information for the time and the location.Type: GrantFiled: March 3, 2011Date of Patent: March 18, 2014Assignee: Sprint Communications Company L.P.Inventors: Christopher J. Mateski, Suryanarayanan Ramamurthy
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Patent number: 8639233Abstract: Embodiments disclosed herein provide systems and methods to provide data session continuity between wireless networks. In a particular embodiment, a method provides receiving a request to create a data session for a wireless communication device exchanging communications with a wireless local area network via a wireless access point. The method further provides determining an access point identifier for the wireless access point and selecting a control system for a cellular communication network of a plurality of cellular communication networks based on the access point identifier. The method further provides anchoring the data session to the control system.Type: GrantFiled: July 23, 2012Date of Patent: January 28, 2014Assignee: Sprint Communications Company L.P.Inventors: Wen Xue, Suryanarayanan Ramamurthy, Jay Douglas Cole
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Patent number: 8543688Abstract: A location data system in a wireless communication system generates and maintains a random number without transferring the random number from the location data system. The location data system monitors a message flow to identify location messages that include a wireless communication device identifier and location information for the wireless communication device. The location data system then processes the random number and the device identifier to generate a correlation code. The location data system transfers location records, including the correlation code and the location information but not the device identifier, from the location data system, wherein individual location records are transferred in response to identifying individual location messages. Finally, the random number is deleted from the location data system.Type: GrantFiled: December 8, 2010Date of Patent: September 24, 2013Assignee: Sprint Communications Company L.P.Inventor: Suryanarayanan Ramamurthy
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Patent number: 8335486Abstract: In a communication system, Position Determining Equipment (PDE) receives location queries from wireless communication devices, determines geographic location data for the wireless communication devices using a plurality of different position fix types, and transfers the geographic location data to the wireless communication devices. The PDE also determines location session data indicating cumulative session time for each of the different position fix types. A PDE data processing system adds the cumulative session time for each of the different position fix types to determine total session time for all of the position fix types. The PDE data processing system divides the total session time for all of the position fix types by the total time to determine an indicator of average concurrent use of the PDE.Type: GrantFiled: October 28, 2009Date of Patent: December 18, 2012Assignee: Sprint Communications Company L.P.Inventor: Suryanarayanan Ramamurthy
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Publication number: 20120244882Abstract: Disclosed is a method for providing satellite assistance data to facilitate determination of the location of a mobile station, particularly for instance a mobile station served by a femtocell. When a positioning server receives a request for the location of a mobile station, the positioning server will determine from the request the mobile station is served by a femtocell and that the positioning server should query a femtocell server for seed data, or the positioning server may otherwise determine from the request that the positioning server should query the femtocell server for seed data. The seed data would preferably be geographic coordinates of a femtocell with which the mobile station is registered. The positioning server may then use that seed data to facilitate obtaining satellite assistance data from a base station almanac, and the positioning serve may provide the satellite assistance data to the mobile station to facilitate location determination.Type: ApplicationFiled: March 24, 2011Publication date: September 27, 2012Applicant: Sprint Spectrum L.P.Inventors: Scott B. Wilson, Suryanarayanan Ramamurthy, Manoj Monga, Victor M. Gress