Patents by Inventor Ragulan Sinnarajah

Ragulan Sinnarajah 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: 9014074
    Abstract: Embodiments describe overlaying a broadcast multicast channel on top of a unicast network. Messages can be generated by protocols in a broadcast/multicast (BCMC) stack and tunneled through an IRTP of a serving access node. These messages can be transmitted on a BCMC channel and/or a unicast channel. Other messages can be generated by protocols in a unicast stack and tunneled to a B-IRTP of a BCMC Access node and transmitted on a BCMC channel to an access terminal.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: April 21, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Fatih Ulupinar, Parag A. Agashe, Ragulan Sinnarajah
  • Patent number: 8989075
    Abstract: Method and a system for multicast service notification in cellular telephone system to enable the cellular telephone systems to provide both multicast and point-to-point services are disclosed. Several embodiments describe the signaling interaction between an access network and subscriber stations belonging to a multicast group to allow the access network to properly notify the subscriber stations of a the multicast service. Such a signaling further allows the subscriber stations to recognize the multicast service notification to participate in the multicast service.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: March 24, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Ragulan Sinnarajah, Jun Wang, Nikolai K. N. Leung, Tao Chen
  • Patent number: 8959230
    Abstract: A method and apparatus for negotiating capability information for a broadcast service in a communication system. In one embodiment, the generic capabilities are pre-configured in BSC, which provides the generic capability information to MS and to PDSN based on a listing of available BC services and the corresponding capabilities. Another embodiment pre-configures PDSN with the generic capability information. According to still another embodiment, PDSN is pre-configured with the generic capability information, wherein the MS queries the PDSN directly for generic capability information via a PPP connection. In yet another embodiment, the MS queries the PCF, which in turn queries all of the PDSN in the system. The PDSN responsible for the BC responds to the query. Where multiple PDSNs may support the BC, the first to respond using multicast addressing obviates the need for the others to respond.
    Type: Grant
    Filed: January 28, 2002
    Date of Patent: February 17, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Raymond T. Hsu, An Mei Chen, Jun Wang, Nikolai K. N. Leung, Nileshkumar J. Parekh, Ragulan Sinnarajah
  • Patent number: 8781482
    Abstract: A method for managing a point-to-point call initiated (702) between a wireless mobile station (114, 400) and a remote party while the mobile is receiving broadcast content via one or more multi-user forward-link broadcast channels (508). The mobile station notifies (704) the network (110) of preferences as to prescribed categories of operating conditions, such as whether to continue receiving the broadcast content, and election between the point-to-point call and broadcast content concurrently. In accordance with the preferences, communications are conducted (706) in one of the following operating modes: (1) conducting the point-to-point call and discontinuing reception of the broadcast, (2) conducting the point-to-point call and continuing reception of the broadcast, (3) aborting completion of the point-to-point call and continuing reception of the broadcast.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: July 15, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Ragulan Sinnarajah, Jun Wang, Tao Chen
  • Patent number: 8767609
    Abstract: Embodiments describe overlaying a broadcast multicast channel on top of a unicast network. Messages can be generated by protocols in a broadcast/multicast (BCMC) stack and tunneled through an IRTP of a serving access node. These messages can be transmitted on a BCMC channel and/or a unicast channel. Other messages can be generated by protocols in a unicast stack and tunneled to a B-IRTP of a BCMC Access node and transmitted on a BCMC channel to an access terminal.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: July 1, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Fatih Ulupinar, Parag A. Agashe, Ragulan Sinnarajah
  • Patent number: 8644862
    Abstract: A method and a system for providing signaling in cellular telephone system providing broadcast services to fully integrate broadcast services with the services provided by the cellular telephone systems. The signaling method coordinate interaction between an access network and the subscriber station to allowing the subscriber station to decode the broadcast service, to receive paging messages while receiving the broadcast service, to properly transition between operation states, and other functions known to one of ordinary skill in the art.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: February 4, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Sanjeev Arvind Athalye, Ragulan Sinnarajah, Jun Wang
  • Patent number: 8611868
    Abstract: A wireless communications network includes roving subscriber-stations and base stations receiving broadcast programs from a content server. A subscriber-station evaluates whether a desired program is available from a subject base station. According to this evaluation, the subscriber-station takes steps to (1) receive the desired program on a shared channel for reception by multiple subscriber-stations, or (2) initiate base station delivery of the desired program to the subscriber-station on an individual channel. Responsive to a message from a subject subscriber-station identifying a desired program, a base station either (1) continues transmitting the desired program upon a shared channel, (2) starts transmitting the desired program on a shared channel, or (3) sends the subject subscriber-station a channel assignment message and commences transmission of the desired program on the assigned individual channel.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: December 17, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Ragulan Sinnarajah, Jun Wang, Tao Chen, Raymond T. Hsu
  • Patent number: 8565191
    Abstract: A mobile station for wireless communication includes a control processor configured to generate a message for transmission on a reverse signaling channel, the message including a Station Class Mark field having a plurality of bits, a portion of the Station Class Mark field indicating that the mobile station is uniquely identified by a Mobile Station Equipment Identifier.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: October 22, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Ragulan Sinnarajah, Ravindra Patwardhan, Leslie Chiming Chan, Edward G. Tiedemann, Jr., Walid M. Hamdy, Baaziz Achour, Philip Kenneth Price, Bharat Shah, John Wallace Nasielski
  • Patent number: 8320922
    Abstract: Systems and techniques are disclosed relating to communications. The systems and techniques include an input device, generating a time period in response to a broadcast channel selection from the input device, generating a request to register the broadcast channel if the time period ends before receiving a second broadcast channel selection, and transmitting the request to an access network. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: November 27, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Baaziz Achour, Lorenzo Casaccia, Ragulan Sinnarajah
  • Publication number: 20120257563
    Abstract: Method and a system for multicast service notification in cellular telephone system to enable the cellular telephone systems to provide both multicast and point-to-point services are disclosed. Several embodiments describe the signaling interaction between an access network and subscriber stations belonging to a multicast group to allow the access network to properly notify the subscriber stations of a the multicast service. Such a signaling further allows the subscriber stations to recognize the multicast service notification to participate in the multicast service.
    Type: Application
    Filed: June 12, 2012
    Publication date: October 11, 2012
    Applicant: QUALCOMM INCORPORATED
    Inventors: Ragulan Sinnarajah, Jun Wang, Nikolai K.N. Leung, Tao Chen
  • Patent number: 8254276
    Abstract: A method and apparatus of providing packet data services that includes establishing an over-the-air communication connection between a mobile station and a wireless network infrastructure. The mobile station communicates a version and capability indication of a wireless packet data standard supported in the mobile station to the wireless network infrastructure. The wireless network infrastructure communicates a version and capability indication of the wireless packet data standard supported in the network infrastructure to the mobile station. Operation of the mobile station and wireless network infrastructure are adjusted in accordance with the indicated versions and capabilities.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: August 28, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Raymond Tah-Sheng Hsu, Ragulan Sinnarajah
  • Patent number: 8254364
    Abstract: A route protocol is established whereby a mobile device can communicate to a multitude of (receiving) base stations though a tunnel created through a serving base station. A message that includes a Route Creation Header can be transmitted by the mobile device to create the tunnel. The Route Creation Header is reviewed by the receiving base station while the mobile device is in a Waiting-To-Open State. Various errors might occur with respect to the Route Creation Header. These errors can be conveyed to the mobile device by base station by setting one or more error code fields. Once the errors are resolved, another attempt to create a tunnel with base station can be made, if desired.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: August 28, 2012
    Assignee: Qualcomm Incorporated
    Inventors: Rajat Prakash, Parag Arun Agashe, Fatih Ulupinar, David R. Mazik, Ragulan Sinnarajah, Ravindra Patwardhan
  • Patent number: 8243644
    Abstract: Method and a system for multicast service notification in cellular telephone system to enable the cellular telephone systems to provide both multicast and point-to-point services are disclosed. Several embodiments describe the signaling interaction between an access network and subscriber stations belonging to a multicast group to allow the access network to properly notify the subscriber stations of a the multicast service. Such a signaling further allows the subscriber stations to recognize the multicast service notification to participate in the multicast service.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: August 14, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Ragulan Sinnarajah, Jun Wang, Nikolai K. N. Leung, Tao Chen
  • Patent number: 8208388
    Abstract: Method for segmented message transmission wherein each message is first divided into segments and the segments are fragmented. A segment parameter is applied to each segment, and a segment identifier to each fragment. The fragments are provided to a lower level for preparation into frames for transmission. One embodiment is applied to the transmission of short duration messages, such as control messages. A timer is used to detect an erasure within a plurality of transmission frames, wherein the timer uses an average inter-arrival time period between transmitted frames to determine a missing frame. In one embodiment, the time period is given as ?*AIT, wherein ? is a constant value, and AIT is the average inter-arrival time of frames.
    Type: Grant
    Filed: August 13, 2004
    Date of Patent: June 26, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Lorenzo Casaccia, Ragulan Sinnarajah
  • Patent number: 8199688
    Abstract: Embodiments describe overlaying a broadcast multicast channel on top of a unicast network. Messages can be generated by protocols in a broadcast/multicast (BCMC) stack and tunneled through an IRTP of a serving access node. These messages can be transmitted on a BCMC channel and/or a unicast channel. Other messages can be generated by protocols in a unicast stack and tunneled to a B-IRTP of a BCMC Access node and transmitted on a BCMC channel to an access terminal.
    Type: Grant
    Filed: March 22, 2008
    Date of Patent: June 12, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Fatih Ulupinar, Parag A. Agashe, Ragulan Sinnarajah
  • Patent number: 8145228
    Abstract: In a communication system (100), a method and apparatus provide for efficient control of call requests from mobile stations (102-104) to base station (101). Mobile station (102-104) receives an initial call request block probability from base station (101), determines an elapsed time from an effective time of the initial call request block probability, and adjusts the initial call request block probability based on an elapsed time. Mobile station (102-104) uses the adjusted initial call request to block call request.
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: March 27, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Lorenzo Casaccia, Sai Yiu Duncan Ho, Ragulan Sinnarajah
  • Patent number: 8126127
    Abstract: A method and apparatus for the provision of broadcast service information is disclosed. In a wireless communication system supporting a broadcast service, a service ID is provided to identify the broadcast service. The service ID is sent to a base station. The base station configures a broadcast service parameters message that includes the service ID. The base station then transmits the broadcast service parameters message to a mobile station. The mobile station receives the broadcast service parameters message and uses the service ID in the broadcast service parameters message to determine availability of the broadcast service in an adjacent sector.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: February 28, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Raymond T. Hsu, Ragulan Sinnarajah
  • Patent number: 8126469
    Abstract: Techniques for minimizing call setup latency are disclosed. In one aspect, a channel assignment message is sent with a flag to direct the use of previously negotiated service parameters. This aspect eliminates the need for service negotiation messages. In another aspect, a channel assignment message is sent with an active set identifier instead of an active set and its parameters. This aspect reduces the transmission time of the channel assignment message. In yet another aspect, call setup without paging is facilitated by a mobile station (106) sending a pilot strength measurement message between active communication sessions, such that a channel assignment message can be used for mobile station terminated call setup without the need for mobile station paging and related messages.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: February 28, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Ragulan Sinnarajah, Edward G. Tiedemann, Jr., Ramin Rezaiifar, Jun Wang, Duncan Ho
  • Publication number: 20120026981
    Abstract: A mobile station for wireless communication includes a control processor configured to generate a message for transmission on a reverse signaling channel, the message including a Station Class Mark field having a plurality of bits, a portion of the Station Class Mark field indicating that the mobile station is uniquely identified by a Mobile Station Equipment Identifier.
    Type: Application
    Filed: October 6, 2011
    Publication date: February 2, 2012
    Applicant: QUALCOMM Incorporated
    Inventors: Ragulan Sinnarajah, Ravindra Patwardhan, Leslie Chiming Chan, Edward G. Tiedemann, JR., Walid M. Hamdy, Baaziz Achour, Phillip Kenneth Price, Bharat Shah, John Wallace Nasielski
  • Publication number: 20120014311
    Abstract: Embodiments describe overlaying a broadcast multicast channel on top of a unicast network. Messages can be generated by protocols in a broadcast/multicast (BCMC) stack and tunneled through an IRTP of a serving access node. These messages can be transmitted on a BCMC channel and/or a unicast channel. Other messages can be generated by protocols in a unicast stack and tunneled to a B-IRTP of a BCMC Access node and transmitted on a BCMC channel to an access terminal.
    Type: Application
    Filed: September 22, 2011
    Publication date: January 19, 2012
    Applicant: QUALCOMM Incorporated
    Inventors: Fatih Ulupinar, Parag A. Agashe, Ragulan Sinnarajah