Abstract: A method and apparatus are provided for efficiently transferring data between a first and second processors having shared memory. A plurality of data packets are aggregated into a packet bundle at the first processor. The packet bundle is then transferred from the first processor to the second processor using the shared memory, wherein the transfer of the packet bundle is performed in a single context switch at the first processor. The packet bundle is then unbundled into individual data packets at the second processor, wherein a processing load of the second processor is reduced due to the aggregation of the data packets into the packet bundle by the first processor.

Abstract: Alternative authentication approaches for service request are provided. For a mobile station roaming in a visited network that does not support conventional updating of cryptographic keys (such as Dynamic Mobile IP Key Update) for a desired service, such cryptographic key authentication may be accomplished in a different way. Instead of merely rejecting a service request when a cryptographic key for the mobile station is not found at the home network, the home network may initiate a process by which a text messaging channel is utilized to establish such cryptographic key with the requesting mobile station. Alternatively, the home network may utilize other information, such as a verifiable identifier or credential for the requesting mobile station (e.g., IMSI, MIN, etc.) along with a roaming status of the requesting mobile station to authenticate the mobile station and grant access to network services allowing a requested service to be established.

Abstract: For application to analog, mixed-signal, and custom digital circuits, a system and method to do: global statistical optimization (GSO), global statistical characterization (GSC), global statistical design (GSD), and block-specific design. GSO can perform global yield optimization on hundreds of variables, with no simplifying assumptions. GSC can capture and display mappings from design variables to performance, across the whole design space. GSC can handle hundreds of design variables in a reasonable time frame, e.g., in less than a day, for a reasonable number of simulations, e.g., less than 100,000. GSC can capture design variable interactions and other possible nonlinearities, explicitly capture uncertainties, and intuitively display them. GSD can support the user's exploration of design-to-performance mappings with fast feedback, thoroughly capturing design variable interactions in the whole space, and allow for more efficiently created, more optimal designs.

Abstract: For application to analog, mixed-signal, and custom digital circuits, a system and method to begin with a complex problem description that encompasses many variables from statistical manufacturing, the circuit's environment, and the circuit's design parameters, but then apply techniques to prune the scope of the problem to make it manageable for manual design and more efficient automated design, and finally use that pruned problem for more efficient and effective design.

Abstract: A system and method for transparent Mobile IP registration within PPP negotiation uses a mobile telephone to relay messages between terminal equipment and a Foreign Agent (FA). An IPCP configuration request message by the terminal equipment requesting the assignment of an IP address is modified by the mobile telephone to delete the IP address request option. Other configuration options are forwarded unchanged by the mobile telephone to the peer/network. The peer/network responds with an acknowledgement of the requested configuration options and flow control between the terminal and the MT is asserted to permit Mobile IP registration. In the course of Mobile IP registration, and IP address is assigned to the mobile unit by the FA. Upon completion of the Mobile IP registration, flow control between the mobile telephone and the terminal is deasserted and the IP address assigned during Mobile IP registration is provided to the terminal equipment.

Abstract: A system and method for transparent Mobile IP registration within PPP negotiation uses a mobile telephone to relay messages between terminal equipment and a Foreign Agent (FA). An IPCP configuration request message by the terminal equipment requesting the assignment of an IP address is modified by the mobile telephone to delete the IP address request option. Other configuration options are forwarded unchanged by the mobile telephone to the peer/network. The peer/network responds with an acknowledgement of the requested configuration options and flow control between the terminal and the MT is asserted to permit Mobile IP registration. In the course of Mobile IP registration, and IP address is assigned to the mobile unit by the FA. Upon completion of the Mobile IP registration, flow control between the mobile telephone and the terminal is deasserted and the IP address assigned during Mobile IP registration is provided to the terminal equipment.

Abstract: Methods and apparatus are presented herein for allowing a keyless access terminal (AT) to access a packet serving data node (PSDN) over a service network stream without deactivating the authentication functions of the authentication network stream.

Abstract: Techniques for performing flow control in Universal Serial Bus (USB) are described. In one design, a USB host sends token packets to a USB device to initiate data exchanges with the USB device. The USB device determines that it is incapable of exchanging data with the USB host, e.g., because there is no data to send or because its buffer is full or near full. The USB device then sends a “flow off” notification to the USB host to suspend data exchanges. The USB host receives the flow off notification and suspends sending token packets to the USB device. Thereafter, the USB device determines that it is capable of exchanging data with the USB host. The USB device then sends a “flow on” notification to the USB host to resume data exchanges. The USB host receives the flow on notification and resumes sending token packets to the USB device.

Abstract: For application to analog, mixed-signal, and custom digital circuits, a system and method to improve the flow of setting up a set of simulations, a characterization, or optimization problem via an interactive circuit schematic. A system and method to visualize circuit simulation data in which at least one of the views is an enhanced, interactive schematic view.

Abstract: A system and method of generating a set of circuit simulation data, applying data mining to for knowledge extraction from the data, and graphically presenting the extracted knowledge in a format that is easy to digest to a designer.

Abstract: Methods and apparatus are presented herein for allowing a wireless communication device to perform a proxy authentication on behalf of a tethered device and ensure the authentication is encrypted.

Abstract: Methods and apparatus are presented herein for allowing a wireless communication device to perform a proxy authentication on behalf of a tethered device.

Abstract: An interface architecture and protocol are provided for transferring messages between a plurality of devices. The architecture provides the capability to generate a plurality of service messages according to a single message format, and to transfer the service messages between a plurality of control points or service entities according to an efficient multiplexing protocol. The control points can be software applications or device drivers running on a terminal equipment device, and the service entities can be communication services such as network access services or device management services running on an attached data communication device such as a modem or a cellular phone.

Abstract: Techniques for performing system selection based on a usage model that uses “access strings”, “profiles”, and “activation strings” are described. Access strings are defined for wireless data services and provide a highly intuitive user interface. Each access string is associated with one or more profiles. Each profile includes various parameters needed to establish a specific data call. Each profile is further associated with an activation string that contains connection information for the data call. System selection is performed in two parts. In the first part, a wireless user views access strings for available data services, selects the access string for the desired data service, and returns the selected access string. In the second part, the wireless device selects a profile for a system most suited to provide the desired data service, from among all profiles associated with the selected access string.

Abstract: Packet filtering is performed to detect for and discard malformed data packets that would be discarded by a wireless network if received from a wireless device. A cdma2000 network may restart a PPP session upon receiving (1) malformed data packets with source IPv4 addresses different from IPv4 addresses (if any) assigned to the wireless device or (2) malformed data packets with source IPv6 addresses having prefixes different from prefixes (if any) associated with the PPP session. The wireless device may receive data packets from a terminal equipment coupled to the wireless device and/or applications running at the wireless device. The wireless device may filter these data packets with packet filters to detect for malformed data packets with invalid IPv4 addresses, invalid IPv6 address prefixes, and so on. The wireless device discards malformed data packets and sends the remaining data packets to the wireless network.

Abstract: According to the invention an embodiment, a network node for communicating using a MAC address is disclosed. The network node includes a point-to-point interface, a bridge and a MAC address register. The point-to-point interface uses a first protocol. The bridge is coupled to the point-to-point interface and provides a fixed route for the Ethernet interface. The first protocol encapsulates the data of a second protocol. The MAC address register stores the MAC address for the second protocol, were the MAC address is dynamically determined in the field and written to the MAC address register. The MAC address is used when communicating with the network node through the point-to-point interface.

Abstract: Methods and apparatus are presented to facilitate the transfer of a PPP session of a mobile communication device that is handed between multiple communication networks with different air interfaces.

Abstract: Methods and apparatus are presented for enabling data connectivity when a handoff occurs between one communication network and another communication network, wherein the communication networks belong to different air interface standards. The mobile station triggers a Compression Control Protocol (CCP) request message to a tethered device if the mobile station determines that a new PDSN is not enabled to perform the CCP protocol. The tethered device then responds with a CCP request message with or without new negotiation parameters. The mobile station forwards the CCP request message to the new PDSN. Since the new PDSN is not enabled with CCP, the new PDSN responds with a CCP rejection message. The rejection message is passed from the mobile station back to the tethered device. The tethered device then sends uncompressed data packets to the PDSN.

Abstract: Techniques for performing system selection based on a usage model that uses “access strings”, “profiles”, and “activation strings” are described. Access strings are defined for wireless data services and provide a highly intuitive user interface. Each access string is associated with one or more profiles. Each profile includes various parameters needed to establish a specific data call. Each profile is further associated with an activation string that contains connection information for the data call. System selection is performed in two parts. In the first part, a wireless user views access strings for available data services, selects the access string for the desired data service, and returns the selected access string. In the second part, the wireless device selects a profile for a system most suited to provide the desired data service, from among all profiles associated with the selected access string.

Abstract: Methods and apparatus are presented to support the mobile Internet Protocol (mobile IP) across different air interface standards. In particular, mechanisms are provided that will allow a mobile device to selectively force a Point-to-Point Protocol (PPP) session resynchronization when the mobile device moves from the support of one air interface standard to another.