Patents by Inventor Vincent Park
Vincent Park 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: 8565801Abstract: Improved group communications methods which are well suited for a wireless environment are described. End nodes request that access nodes make changes in group membership information maintained at the access node. The access node responds to the requests by a response signal indicating a grant or denial of the request. Requests may be to add or remove the end node, e.g., a mobile wireless terminal, from a particular group membership list identified in the request signal. The access node maintains a detailed list of group members and uses the information to control how signals, e.g., packets, are transmitted to the group members. Group membership information may be updated at the access node at the time of handoff and/or an end node enters the cell or otherwise changes its point of network attachment.Type: GrantFiled: August 16, 2005Date of Patent: October 22, 2013Assignee: QUALCOMM IncorporatedInventors: M. Scott Corson, Alan O'Neill, Vincent Park
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Patent number: 8488602Abstract: Group communications methods and apparatus are described. Multiple modes of group communications signaling are supported. In a first mode, copies of packets are separately transmitted to each group member in a sector or cell. In a second mode a copy of a packet is directed to multiple group members at the same time. Transitions between the two modes may be determined as a function of the cost of operating in each of the modes in terms of system cost and/or the number of group members in a cell or sector being serviced by a transmitter.Type: GrantFiled: August 16, 2005Date of Patent: July 16, 2013Assignee: QUALCOMM IncorporatedInventors: M. Scott Corson, Rajiv Laroia, Alan O'Neill, Vincent Park, Murari Srinivasan, Sathyadev Venkata Uppala
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Patent number: 8184615Abstract: Methods and apparatus for establishing communication links, used to support communications sessions with one or more end nodes, e.g., mobile devices, are described. Various features are directed to a mobile node controlling the establishment of initial links to a first access node and the establishment of new links from a first access node to a second access node during a handoff operation using highly efficient messages and signal.Type: GrantFiled: October 12, 2005Date of Patent: May 22, 2012Assignee: QUALCOMM IncorporatedInventors: George Tsirtsis, M. Scott Corson, Vincent Park, Rajiv Laroia, Pablo Anigstein, Richard J. Dynarski, Matthew Impett, Prashanth Hande, Prasanna Nadhamuni
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Patent number: 8165124Abstract: Methods and apparatus for compressing messages used to support mobile communications are described. After transmission of a first mobile IP message which may be a conventional mobile IP message, a compressed mobile IP message is transmitted. The compressed message includes a new “compressed message” indicator and information which is to replace information in the previous message or to be added to the previous message to construct a new message. In some embodiments, the compressed message includes a mask field, e.g., a sequence of bits, each bit corresponding to one field of a standard registration request message or binding update message. If the mask flag bit corresponding to a field is set, it indicates that the compressed message includes information to replace the content in the corresponding field of the previous message or to be added to the previous message as a field corresponding to the asserted bit.Type: GrantFiled: October 13, 2006Date of Patent: April 24, 2012Assignee: QUALCOMM IncorporatedInventors: George Tsirtsis, Vincent Park, Hesham Soliman
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Publication number: 20120087312Abstract: Methods and apparatus for using end nodes, e.g., wireless terminals, to discover base stations and communicate information about discovered access nodes, e.g., base stations, to other access nodes in a system are described. As the wireless terminal roams in the system and new access nodes are encountered, one or more physically adjacent access nodes will be informed of the presence of the new access node as a result of communications with the wireless terminal. A message indicating an access node's inability to route a message to another access node which is known to a wireless terminal may trigger the wireless terminal to begin the process of updating access node routing and neighbor information.Type: ApplicationFiled: December 20, 2011Publication date: April 12, 2012Applicant: QUALCOMM INCORPORATEDInventors: Rajiv LAROIA, Pablo Anigstein, David R. Mazik, Vladimir Parizhsky, Vincent Park, Murari Srinivasan, George Tsirtsis
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Patent number: 8036104Abstract: Techniques for supporting fault tolerance in communications systems are described. Fault notification messages are communicated which may be affected by a detected/reported service disruption. End nodes receiving a fault notification message determine if the message indicates a disruption in a node that is critical to the end node receiving the message. If the indicated disruption is in a critical node, the end node takes action to ameliorate the effect of the reported condition. Fault notification messages indicating disruptions in nodes which are not critical to the end node receiving the fault notification message may be ignored once it is determined that the indicated disruption is in a node which is not critical to the end node receiving the message. The invention described herein minimizes service disruption following fault, failure or outage of critical network nodes, improving overall system robustness and resiliency.Type: GrantFiled: July 14, 2003Date of Patent: October 11, 2011Assignee: QUALCOMM IncorporatedInventors: M. Scott Corson, Samir Kapoor, Rajiv Laroia, Vincent Park, Arthur Stephens
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Publication number: 20110228690Abstract: A method and apparatus for providing uplink macro-diversity in packet-switched networks that allows packets and/or portions of packets, e.g., frames, to be selectively sent from an end node, e.g., wireless communication device or mobile terminal, over a set of multiple communication connections, e.g., physical-layer or link-layer connections, to one or more access nodes, e.g., base stations. Uplink macro-diversity is achieved in part through intelligent selective forwarding over multiple communication connections, where the forwarding decision is controlled by the end node based on a variety of factors, e.g., physical-layer channel conditions and/or higher layer policy. The forwarding decision is executed on a rapid timescale, e.g., on a per packet basis, to adapt to the dynamically varying conditions of the set of communication connections.Type: ApplicationFiled: May 27, 2011Publication date: September 22, 2011Applicant: QUALCOMM INCORPORATEDInventors: M. Scott Corson, Samir Kapoor, Rajiv Laroia, Vincent Park
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Patent number: 7984492Abstract: An apparatus and associated method is provided for facilitating policy decision in a communication system, wherein the apparatus receiving a message, the message comprising a first destination device identification of a first destination device, determining a second destination device identification of a second destination device by accessing a location information of a wireless terminal, and replacing the first destination device identification with second destination device identification.Type: GrantFiled: July 16, 2007Date of Patent: July 19, 2011Assignee: QUALCOMM IncorporatedInventors: Hesham Soliman, Vincent Park, David R. Mazik, Mathew Scott Corson
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Patent number: 7962142Abstract: Methods and apparatus for storing, manipulating, retrieving, and forwarding state, e.g., context and other information, used to support communications sessions with one or more end nodes, e.g., mobile devices, are described. Various features are directed to a mobile node controlling the transfer of state from a first access node to a second access node during a handoff operation thereby eliminating any need for state transfer messages to be transmitted between the second access node and the first access node during handoff. Other features of the invention are directed to the use of a core network node to store state information. State information stored in the core node can be accessed and used by access nodes in cases where a mobile node does not send a state transfer message during a handoff, e.g., because communication with the first access node is lost or because such messages are not supported.Type: GrantFiled: April 21, 2008Date of Patent: June 14, 2011Assignee: Qualcomm IncorporatedInventors: Alan O'Neill, M. Scott Corson, George Tsirtsis, Vincent Park
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Patent number: 7882346Abstract: This invention proposes an integrated process for AAA (Authentication, Authorisation, and Accounting) with the order reversed whereby L2 follows L3. The L3 process treats the wireless link as any normal IP access link, and the L3 authorisation provides L3 processing, but also includes the L2 terminal authentication identifiers so that the L2 security parameters can also be returned. This means that the wireless link and the IP layer are not secured until after the L3 authorisation has completed and therefore the first IP messages that trigger authorisation are sent insecurely. This invention also provides methods to avoid these insecure messages presenting any opportunities to an attacker. Finally, the inventions include methods to enable L3 before L2 authorisation when a user is roaming in a foreign network.Type: GrantFiled: May 9, 2003Date of Patent: February 1, 2011Assignee: QUALCOMM IncorporatedInventors: Alan O'Neill, Michaela Vanderveen, George Tsirtsis, Vincent Park
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Publication number: 20110019614Abstract: Methods and apparatus for storing, manipulating, retrieving, and forwarding state, e.g., context and other information, used to support communications sessions with one or more end nodes, e.g., mobile devices, are described. Various features are directed to a mobile node controlling the transfer of state from a first access node to a second access node during a handoff operation thereby eliminating any need for state transfer messages to be transmitted between the second access node and the first access node during handoff. Other features of the invention are directed to the use of a core network node to store state information. State information stored in the core node can be accessed and used by access nodes in cases where a mobile node does not send a state transfer message during a handoff, e.g., because communication with the first access node is lost or because such messages are not supported.Type: ApplicationFiled: January 21, 2010Publication date: January 27, 2011Applicant: QUALCOMM IncorporatedInventors: Alan O'Neill, M. Scott Corson, George Tsirtsis, Vincent Park, Richard J. Dynarski, David R. Mazik, Leonid Sigal
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Patent number: 7729686Abstract: Signal, e.g., message, security techniques are described for wireless systems. A first signal is received by an access node via a wireless link. The signal includes a first authenticator that was generated by the transmitting device, e.g., wireless terminal. The access node determines from an attribute of the signal at least some information known to both the access node and transmitting device but which was not transmitted as part of the message content. The determined information was used by the wireless terminal in generating the first authenticator. The access node sends at least a portion of the first signal including the first authenticator and the determined information to another entity. The entity compares the first authenticator to a second authenticator it generates from the determined information and a secure key which it shares with the transmitting device to determine if the first and second authenticators match.Type: GrantFiled: June 19, 2006Date of Patent: June 1, 2010Assignee: Qualcomm IncorporatedInventors: M. Scott Corson, Rajiv Laroia, Vincent Park, Sathyadev Venkata Uppala, Michaela Vanderveen
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Patent number: 7668541Abstract: Methods and apparatus for storing, manipulating, retrieving, and forwarding state, e.g., context and other information, used to support communications sessions with one or more end nodes, e.g., mobile devices, are described. Various features are directed to a mobile node controlling the transfer of state from a first access node to a second access node during a handoff operation thereby eliminating any need for state transfer messages to be transmitted between the second access node and the first access node during handoff. Other features of the invention are directed to the use of a core network node to store state information. State information stored in the core node can be accessed and used by access nodes in cases where a mobile node does not send a state transfer message during a handoff, e.g., because communication with the first access node is lost or because such messages are not supported.Type: GrantFiled: August 4, 2004Date of Patent: February 23, 2010Assignee: Qualcomm IncorporatedInventors: Alan O'Neill, M. Scott Corson, George Tsirtsis, Vincent Park, Richard J. Dynarski, David R. Mazik, Leonid Sigal
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Publication number: 20100027476Abstract: The invention described herein enables a form of downlink macro-diversity in packet-switched cellular networks. It allows packets to be selectively delivered from a network/internetwork to an end node, e.g., a wireless communication device or terminal, over a set of available link-layer connections to/from the end node, through one or more access nodes, e.g., base stations. Downlink macro-diversity is particularly important when the link-layer connections between the end node and the corresponding access node, e.g., the access links, are subject to independent or partially correlated time variations in signal strength and interference. In accordance with the invention, the end node dynamically selects the downlink to be used out of a set of available access links on a per packet basis subject to prevailing channel conditions, availability of air-link resources and other constraints.Type: ApplicationFiled: October 13, 2009Publication date: February 4, 2010Applicant: QUALCOMM InorporatedInventors: M. Scott Corson, Samir Kapoor, Rajiv Laroia, Vincent Park
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Patent number: 7623477Abstract: The invention described herein enables a form of downlink macro-diversity in packet-switched cellular networks. It allows packets to be selectively delivered from a network/internetwork to an end node, e.g., a wireless communication device or terminal, over a set of available link-layer connections to/from the end node, through one or more access nodes, e.g., base stations. Downlink macro-diversity is particularly important when the link-layer connections between the end node and the corresponding access node, e.g., the access links, are subject to independent or partially correlated time variations in signal strength and interference. In accordance with the invention, the end node dynamically selects the downlink to be used out of a set of available access links on a per packet basis subject to prevailing channel conditions, availability of air-link resources and other constraints.Type: GrantFiled: November 5, 2003Date of Patent: November 24, 2009Assignee: QUALCOMM, IncorporatedInventors: M. Scott Corson, Samir Kapoor, Rajiv Laroia, Vincent Park
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Publication number: 20090270120Abstract: An apparatus and associated method, wherein the method provided for facilitating receiving a request that requires a reply within a first time, determining a first maximum time to reply using a first criteria, wherein the maximum time to reply is less than the first time, and selecting a reply time, wherein the reply time is not greater than the maximum time to reply.Type: ApplicationFiled: July 16, 2007Publication date: October 29, 2009Applicant: QUALCOMM INCORPORATEDInventor: Vincent Park
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Patent number: 7460504Abstract: Methods and apparatus for establishing communication links, used to support communications sessions with one or more end nodes, e.g., mobile devices, are described. Various features are directed to a mobile node controlling the establishment of initial links to a first access node and the establishment of new links from a first access node to a second access node during a handoff operation using highly efficient messages and signal.Type: GrantFiled: October 12, 2005Date of Patent: December 2, 2008Assignee: QUALCOMM IncorporatedInventors: George Tsirtsis, M. Scott Corson, Vincent Park, Rajiv Laroia, Pablo Anigstein
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Publication number: 20080227459Abstract: Methods and apparatus for storing, manipulating, retrieving, and forwarding state, e.g., context and other information, used to support communications sessions with one or more end nodes, e.g., mobile devices, are described. Various features are directed to a mobile node controlling the transfer of state from a first access node to a second access node during a handoff operation thereby eliminating any need for state transfer messages to be transmitted between the second access node and the first access node during handoff. Other features of the invention are directed to the use of a core network node to store state information. State information stored in the core node can be accessed and used by access nodes in cases where a mobile node does not send a state transfer message during a handoff, e.g., because communication with the first access node is lost or because such messages are not supported.Type: ApplicationFiled: April 21, 2008Publication date: September 18, 2008Inventors: Alan O'Neill, M. Scott Corson, George Tsirtsis, Vincent Park
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Patent number: 7421281Abstract: Group communications methods and apparatus are described. In particular, methods for granting a mobile device access to a communications resource, e.g., the right to transmit data, associated with a group are described. User requests for the communications resource are suppressed by the corresponding mobile device, for periods during which the communications resource has been granted to another mobile device. A mobile device may store a suppressed user request so that a resource request signal may be transmitted after the communications resource has been released by the mobile device that was previously granted the resource. In this manner requests that cannot be granted are not transmitted, increasing communications efficiency as compared to systems where requests are not suppressed at the mobile devices. A priority scheme is used in some embodiments to determine whether or not a request should be suppressed while another device has been granted the communications resource.Type: GrantFiled: May 10, 2005Date of Patent: September 2, 2008Assignee: QUALCOMM IncorporatedInventors: Alan O'Neill, M. Scott Corson, Vincent Park, Michaela Vanderveen, George Tsirtsis
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Patent number: 7392056Abstract: Location update techniques are described. A dormant mobile node updates its location information by sending a first message over a wireless link to an access node. The access node generates a second update message in response to the first message. The second message includes a mobile node identifier and, in some embodiments is directed to the mobile node. The second message is received by a tracking agent, which updates location information corresponding to the mobile node. In the case where second message is an IP message and is routed to the mobile node using Mobile IP, a Mobile IP home agent routes the second message to the mobile node's last point of network attachment where the tracking agent is located and intercepts the message. The tracking agent may send a response message to the access node sending the second message.Type: GrantFiled: January 6, 2006Date of Patent: June 24, 2008Assignee: QUALCOMM IncorporatedInventors: M. Scott Corson, Rajiv Laroia, Vincent Park, Sathyadev Venkata Uppala, Michaela Vanderveen