Patents by Inventor David J. Lauson

David J. Lauson 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: 7702311
    Abstract: A serving GPRS node (SGSN) is made content aware by passing content based rate information in the GPRS tunnel protocol (GTP) header. The SGSN uses the PDP context request to inform a GPRS support node (GGSN) that it is content aware and can process the content based rate information. In one embodiment, the rate information is passed in a GTP extension header. A new GTP header type tells the SGSN that rate information is present in the GTP header content field. In an alternate embodiment, the rate information is passed in a fourth octet of a four octet tunnel endpoint identifier (TEID).
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: April 20, 2010
    Assignee: Nortel Networks Limited
    Inventors: Jerry Mizell, David J. Lauson, Curtis Provost
  • Patent number: 7343158
    Abstract: A method and apparatus are provided for dynamically redirecting mobile terminal home agent selection in a mobile IP network. A provisioning server assigns a preferred home agent to a group of mobile terminals based on one of a subscriber special services, subscriber connectivity, and home agent capacity. The provisioning server transmits the preferred home agent address to a home authentication, authorization, and accounting (AAA) server which updates a AAA database. The mobile terminal seeking access to the mobile IP network first registers with a configured home agent address stored in the mobile terminal. The configured home agent communicates with the home AAA server to authenticate the mobile terminal. The home AAA server fails the mobile terminal authentication request and provides the address of the preferred home agent. The mobile terminal reregisters with the preferred home agent to access the mobile IP network.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: March 11, 2008
    Assignee: Nortel Networks Limited
    Inventors: Jerry Mizell, David J. Lauson, Peter Wenzel
  • Patent number: 7230951
    Abstract: A foreign agent routes data packets according to policy based routing information maintained by the home network. The policy may be network based or may be subscriber profile based as defined in an authentication, authorization, and accounting server. The policy routes data packets according to one of an address specified in the mobile IP header and an application type. The address specified in the mobile IP header is typically within a range of addresses within the home network. The foreign agent routes data packets of the specified policy type directly to the home agent server. Data packets that are not of the specified policy type are routed directly to an Internet access point.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: June 12, 2007
    Assignee: Nortel Networks Limited
    Inventors: Jerry Mizell, David J Lauson, Peter Wenzel
  • Patent number: 7027825
    Abstract: A system for delivering SMS messages to a mobile terminal includes an apparatus and method that deliver the SMS messages either using legacy SMS message formats or data packet formats. Additionally, a connection is created between a message center and a gateway GPRS support node wherein SMS messages may be transmitted to the gateway GPRS support node in a data packet format. To provide this capability, the gateway GPRS support node includes a unique port address for receiving SMS messages and circuitry for processing SMS messages received in a data packet format. A serving GPRS support node is formed to include circuitry for determining whether to transmit the SMS message to the mobile terminal in a data packet format or in a legacy SMS message format.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: April 11, 2006
    Assignee: Nortel Networks, Limited
    Inventors: Jerry Mizell, Curtis Provost, David J. Lauson
  • Patent number: 7027826
    Abstract: A system for delivering SMS messages to a mobile terminal includes an apparatus and method that deliver the SMS messages either using legacy SMS message formats or data packet formats. Additionally, a connection is created between a message center and a gateway GPRS support node wherein SMS messages may be transmitted to the gateway GPRS support node in a data packet format. To provide this capability, the gateway GPRS support node includes a unique port address for receiving SMS messages and circuitry for processing SMS messages received in a data packet format. A serving GPRS support node is formed to include circuitry for determining whether to transmit the SMS message to the mobile terminal in a data packet format or in a legacy SMS message format.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: April 11, 2006
    Assignee: Nortel Networks Limited
    Inventors: Jerry Mizell, Curtis Provost, David J. Lauson
  • Patent number: 6970711
    Abstract: A system for delivering SMS messages to a mobile terminal includes an apparatus and method that deliver the SMS messages either using legacy SMS message formats or data packet formats. Additionally, a connection is created between a message center and a gateway GPRS support node wherein SMS messages may be transmitted to the gateway GPRS support node in a data packet format. To provide this capability, the gateway GPRS support node includes a unique port address for receiving SMS messages and circuitry for processing SMS messages received in a data packet format. A serving GPRS support node is formed to include circuitry for determining whether to transmit the SMS message to the mobile terminal in a data packet format or in a legacy SMS message format and to receive the message regardless of the path utilized by the message center to transmit the message.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: November 29, 2005
    Assignee: Nortel Networks Limited
    Inventors: Jerry Mizell, Curtis Provost, David J. Lauson
  • Publication number: 20040266394
    Abstract: A serving GPRS node (SGSN) is made content aware by passing content based rate information in the GPRS tunnel protocol (GTP) header. The SGSN uses the PDP context request to inform a GPRS support node (GGSN) that it is content aware and can process the content based rate information. In one embodiment, the rate information is passed in a GTP extension header. A new GTP header type tells the SGSN that rate information is present in the GTP header content field. In an alternate embodiment, the rate information is passed in a fourth octet of a four octet tunnel endpoint identifier (TEID).
    Type: Application
    Filed: June 30, 2003
    Publication date: December 30, 2004
    Inventors: Jerry Mizell, David J. Lauson, Curtis Provost
  • Publication number: 20040208153
    Abstract: A foreign agent routes data packets according to policy based routing information maintained by the home network. The policy may be network based or may be subscriber profile based as defined in an authentication, authorization, and accounting server. The policy routes data packets according to one of an address specified in the mobile IP header and an application type. The address specified in the mobile IP header is typically within a range of addresses within the home network. The foreign agent routes data packets of the specified policy type directly to the home agent server. Data packets that are not of the specified policy type are routed directly to an Internet access point.
    Type: Application
    Filed: April 16, 2003
    Publication date: October 21, 2004
    Inventors: Jerry Mizell, David J. Lauson, Peter Wenzel
  • Publication number: 20040208187
    Abstract: A method and apparatus are provided for dynamically redirecting mobile terminal home agent selection in a mobile IP network. A provisioning server assigns a preferred home agent to a group of mobile terminals based on one of a subscriber special services, subscriber connectivity, and home agent capacity. The provisioning server transmits the preferred home agent address to a home authentication, authorization, and accounting (AAA) server which updates a AAA database. The mobile terminal seeking access to the mobile IP network first registers with a configured home agent address stored in the mobile terminal. The configured home agent communicates with the home AAA server to authenticate the mobile terminal. The home AAA server fails the mobile terminal authentication request and provides the address of the preferred home agent. The mobile terminal reregisters with the preferred home agent to access the mobile IP network.
    Type: Application
    Filed: April 16, 2003
    Publication date: October 21, 2004
    Inventors: Jerry Mizell, David J. Lauson, Peter Wenzel
  • Publication number: 20030126435
    Abstract: A method of authenticating an originator of a packet in a network comprising filtering the packet for a tag embedded therein, reading the tag contents including an identifier and an encrypted hash, decrypting the encrypted hash included in the tag, calculating a second hash from the identifier of the originator, and authenticating the originator of the packet upon determining the decrypted hash and the calculated hash are identical is provided. A node for authenticating an originator of a packet comprising a processing unit, a memory unit operable to store an authentication algorithm therein, and an interface to a network medium operable to receive the packet, the authentication algorithm operable to filter the packet for a tag embedded therein, decrypt an encrypted hash in the embedded tag, calculate a hash from an identifier in the tag, and authenticate the originator upon a comparison between the decrypted hash and the calculated hash is provided.
    Type: Application
    Filed: December 28, 2001
    Publication date: July 3, 2003
    Inventors: Jerry L. Mizell, David J. Lauson, Margaret Kaczmarska
  • Publication number: 20030112782
    Abstract: A method of processing data traffic in transit in a mobile telecommunication network comprising filtering a packet of data for an application associated therewith and applying a service marking to the packet dependent on the application associated with the packet is provided. A node of a mobile telecommunication network operable to deliver at least one packet to a mobile device serviced by the mobile telecommunication network comprising an interface to at least one other network node, and a table comprising an index including at least one key having a record associated therewith is provided, the node operable to interrogate the table with an identification of an application obtained from the packet. The service marking of a record associated with a key is returned to the node upon a match between the identification and the key.
    Type: Application
    Filed: December 18, 2001
    Publication date: June 19, 2003
    Inventors: Jerry L. Mizell, David J. Lauson, Peter W. Wenzel
  • Publication number: 20020077132
    Abstract: A system for delivering SMS messages to a mobile terminal includes an apparatus and method that deliver the SMS messages either using legacy SMS message formats or data packet formats. Additionally, a connection is created between a message center and a gateway GPRS support node wherein SMS messages may be transmitted to the gateway GPRS support node in a data packet format. To provide this capability, the gateway GPRS support node includes a unique port address for receiving SMS messages and circuitry for processing SMS messages received in a data packet format. A serving GPRS support node is formed to include circuitry for determining whether to transmit the SMS message to the mobile terminal in a data packet format or in a legacy SMS message format.
    Type: Application
    Filed: December 20, 2000
    Publication date: June 20, 2002
    Inventors: Jerry Mizell, Curtis Provost, David J. Lauson
  • Publication number: 20020077134
    Abstract: A system for delivering SMS messages to a mobile terminal includes an apparatus and method that deliver the SMS messages either using legacy SMS message formats or data packet formats. Additionally, a connection is created between a message center and a gateway GPRS support node wherein SMS messages may be transmitted to the gateway GPRS support node in a data packet format. To provide this capability, the gateway GPRS support node includes a unique port address for receiving SMS messages and circuitry for processing SMS messages received in a data packet format. A serving GPRS support node is formed to include circuitry for determining whether to transmit the SMS message to the mobile terminal in a data packet format or in a legacy SMS message format. The mobile terminal of the present invention is formed to transmit and receive SMS messages in at least one of a legacy and a data packet format.
    Type: Application
    Filed: December 20, 2000
    Publication date: June 20, 2002
    Applicant: NORTEL NETWORKS LIMITED World Trade Center of Montreal
    Inventors: Jerry Mizell, Curtis Provost, David J. Lauson
  • Publication number: 20020077133
    Abstract: A system for delivering SMS messages to a mobile terminal includes an apparatus and method that deliver the SMS messages either using legacy SMS message formats or data packet formats. Additionally, a connection is created between a message center and a gateway GPRS support node wherein SMS messages may be transmitted to the gateway GPRS support node in a data packet format. To provide this capability, the gateway GPRS support node includes a unique port address for receiving SMS messages and circuitry for processing SMS messages received in a data packet format. A serving GPRS support node is formed to include circuitry for determining whether to transmit the SMS message to the mobile terminal in a data packet format or in a legacy SMS message format.
    Type: Application
    Filed: December 20, 2000
    Publication date: June 20, 2002
    Inventors: Jerry Mizell, Curtis Provost, David J. Lauson
  • Publication number: 20020077131
    Abstract: A system for delivering SMS messages to a mobile terminal includes an apparatus and method that deliver the SMS messages either using legacy SMS message formats or data packet formats. Additionally, a connection is created between a message center and a gateway GPRS support node wherein SMS messages may be transmitted to the gateway GPRS support node in a data packet format. To provide this capability, the gateway GPRS support node includes a unique port address for receiving SMS messages and circuitry for processing SMS messages received in a data packet format. A serving GPRS support node is formed to include circuitry for determining whether to transmit the SMS message to the mobile terminal in a data packet format or in a legacy SMS message format and to receive the message regardless of the path utilized by the message center to transmit the message.
    Type: Application
    Filed: December 20, 2000
    Publication date: June 20, 2002
    Inventors: Jerry Mizell, Curtis Provost, David J. Lauson
  • Patent number: 6201965
    Abstract: A system and method for facilitating a telecommunication subscriber connection using a domain name system is disclosed. The system, which is part of a DNS server, supports connection to a mobile terminal through a data network and includes multiple connections to external devices or systems, although one or more of the connections may be serviced by a single link. The connections link the system to the data network, to a home location register (“HLR”) associated with the terminal and to a mobile switch associated with the terminal. Upon initiation of a query to the DNS server through the PDN, the DNS server signals the HLR for the identification of the switch that is associated with the mobile terminal. The HLR returns an identifier for the switch and the DNS server then requests the switch to provide an address for the mobile terminal. The switch establishes a connection with the mobile terminal and provides a temporary address through a network interface system such as an interworking function.
    Type: Grant
    Filed: November 10, 1998
    Date of Patent: March 13, 2001
    Assignee: Nortel Networks Limited
    Inventors: Jerry L. Mizell, David J. Lauson
  • Patent number: 6157846
    Abstract: An interface device for faxing documents over a wireless network includes circuitry for emulating the public switched telephone network (PSTN) for communicating with an analog fax machine. The circuitry receives and stores a document image from the fax machine. It then prompts a wireless transceiver to establish a call connection. Once a call connection is created to a destination fax through the wireless network the interface device transmits the stored document image. The inventive method includes the steps of communicating with a fax over by means of one protocol to receive a document image, storing the document image, and transmitting the document image by means of a second protocol.
    Type: Grant
    Filed: October 1, 1997
    Date of Patent: December 5, 2000
    Assignee: Nortel Networks Limited
    Inventors: Serge Manning, Peter W. Wenzel, Cecil L. Taylor, David J. Lauson
  • Patent number: 4684885
    Abstract: Under normal operating conditions in an on-linne active/off-line standby duplicated processor system, only the on-line active processor is permitted access to the system's bus structure. The off-line standby processor is disconnected from the system buses. A technique is shown that allows the off-line standby processor diagnostic access to the system peripherals via the bus structure. The standby processor may then perform diagnostic testing to determine its communication ability with the system's peripheral devices. The diagnostic testing is done rapidly to avoid any loss of processor throughput. This technique also assures that the diagnostic testing will not cause faults or after the system configuration during this testing. As a result, when the off-line processor is put into active service, this transition will be made smoothly since this processor's operation has been previously verified.
    Type: Grant
    Filed: November 4, 1985
    Date of Patent: August 4, 1987
    Assignee: GET Communication Systems Corporation
    Inventors: Harry A. Chapman, David J. Lauson