Abstract: In a wireless communication system, a mobility factor is used to influence handoff. If a subscriber station has been in a low mobility state for some period of time, the system may handoff operation from a first service type to a second service type. If the mobility factor indicates that the subscriber station is moving, the system may handoff operation from the second service type back to the first service type.

Abstract: In a wireless communication system, a mobility factor is used to influence handoff. If a subscriber station has been in a low mobility state for some period of time, the system may handoff operation from a first service type to a second service type. If the mobility factor indicates that the subscriber station is moving, the system may handoff operation from the second service type back to the first service type.

Abstract: In a wireless communication system, a mobility factor is used to influence handoff. If a subscriber station has been in a low mobility state for some period of time, the system may handoff operation from a first service type to a second service type. If the mobility factor indicates that the subscriber station is moving, the system may handoff operation from the second service type back to the first service type.

Abstract: A system is provided to establish and maintain a data path between a Local Area Network (LAN) that is mounted on a moving vehicle and a satellite. In combination, an antenna assembly, an Antenna Control Unit (ACU), an Inertial reference Unit (IRU), and a modem are mounted together on the moving vehicle, under the overall control of a services platform. Operationally, the IRU generates parametric values indicative of the spatial attitude and location of the moving vehicle. The ACU then uses the parametric values to aim the antenna in a direction toward the satellite. In this combination, the modem is connected with the antenna to transmit and receive data between the system and the satellite. Individually or collectively, operationally compatible components of the system (IRU, ACU, antenna and modem) can be appropriately substituted to thereby customize the system.

Abstract: In a wireless communication system, a mobility factor is used to influence handoff. If a subscriber station has been in a low mobility state for some period of time, the system may handoff operation from a first service type to a second service type. If the mobility factor indicates that the subscriber station is moving, the system may handoff operation from the second service type back to the first service type.

Abstract: In a wireless communication system, a mobility factor is used to influence handoff. If a subscriber station has been in a low mobility state for some period of time, the system may handoff operation from a first service type to a second service type. If the mobility factor indicates that the subscriber station is moving, the system may handoff operation from the second service type back to the first service type.

Abstract: A system for detecting moving objects within a predetermined geographical area is provided. The system is designed to convey object movement information from an airborne surveillance platform to a ground-based operator station with reduced data transmission. This is accomplished by computer processing image data on the surveillance platform prior to transmitting data to the ground station. First, the system constructs a 3D model of the area under surveillance, for example, by obtaining many different views of the area using an aircraft. One 3D model is maintained at the surveillance platform, and another is transmitted to the ground station. During a surveillance mission, a succession of relatively low data, 2D images are created and aligned with the surveillance platform's 3D model. The alignment reveals differences in the images (tracking data) which is then transmitted to the ground station for use with the ground station's 3D model to resolve object movement information.

Abstract: A system and method are disclosed for allowing a user at the transmit end of a communication link to change a forward error correction scheme to select between relatively high spectral efficiency and relatively small error block processing delay. The system can include a modem having a plurality of encoding modules, at least one modulation module and a user input module. Pluralities of switches are provided to selectively route an input data-stream to one of the encoding modules. The switches are operationally coupled with the user input module allowing the user to route the input data-stream to a user-selected encoding module. At the user-selected encoding module, the input data-stream is processed to add an FEC redundancy and output FEC blocks having an FEC block size that is unique to the selected encoding module. In this way, the user selects the different encoding modules and the corresponding different FEC block sizes.

Abstract: An on-board communication and navigation system for an aircraft is provided for allowing an aircraft to transmit and receive information via satellite link. Specifically, the system includes a radome assembly and a fuselage coupler. The radome assembly, for example, may include an antenna, an antenna control unit and an inertial reference unit. During installation, the fuselage coupler is securely and permanently mounted on the aircraft, typically on the fuselage at the top of the aircraft. Once the fuselage coupler is securely mounted, the radome assembly can be removably attached to the fuselage coupler, allowing the radome assembly to be quickly and easily removed and reattached to the aircraft, as needed.

Abstract: A storage system for storing and retrieving data streams from a plurality of networked devices in real-time can include a plurality of solid-state memory devices (SSDs), a plurality of storage processors and an interface processor. Each storage processor is connected to the interface processor, and, once the storage system is configured, each storage processor is connected to one or more SSD's. The particular number of SSD's that are addressed by each storage processor depends on the storage system configuration and changes when the storage system is reconfigured. With the arrangement described above, the storage system is segmented into a plurality of individual drives with each individual drive including a storage processor and the individual SSDs that are connected to and addressed by the storage processor. To optimize storage speed and efficiency, the interface processor can then route the data streams from one or more networked devices to a particular individual drive.

Abstract: A system is provided to establish and maintain a data path between a Local Area Network (LAN) that is mounted on a moving vehicle and a satellite. In combination, an antenna assembly, an Antenna Control Unit (ACU), an Inertial reference Unit (IRU), and a modem are mounted together on the moving vehicle, under the overall control of a services platform. Operationally, the IRU generates parametric values indicative of the spatial attitude and location of the moving vehicle. The ACU then uses the parametric values to aim the antenna in a direction toward the satellite. In this combination, the modem is connected with the antenna to transmit and receive data between the system and the satellite. Individually or collectively, operationally compatible components of the system (IRU, ACU, antenna and modem) can be appropriately substituted to thereby customize the system.

Abstract: A soft switch providing wireless PBX voice services to a local area network (WLAN) is used to extend PBX functionality to the cellular domain. A dual mode remote unit is capable of receiving signals both in the cellular system as well as the WLAN. The cellular system is comprised of a data-bearing path and a voice-bearing path. When the dual mode remote unit is within the WLAN, it communicates both voice over IP (VoIP) signaling as well as session initiation protocol (SIP) control signaling over the WLAN. When the remote unit is outside the WLAN, it communicates voice signaling over the voice-bearing path of the cellular network using a standard cellular voice channel. In parallel, it uses the data-bearing path of the cellular network to transmit SIP control signaling.

Abstract: In a wireless communication system, a mobility factor is used to influence handoff. If a subscriber station has been in a low mobility state for some period of time, the system may handoff operation from a first service type to a second service type. If the mobility factor indicates that the subscriber station is moving, the system may handoff operation from the second service type back to the first service type.

Abstract: A system and method for providing connectivity to a foreign network for a device configured for communication over a home network without reconfiguring the device include intercepting packets transmitted by the device, selectively modifying intercepted packets which are incompatible with the foreign network to be compatible with network settings of the foreign network, and selectively providing network services for the device corresponding to network services available on the home network to reduce the delay associated with accessing the network services from the foreign network, or to provide network services otherwise inaccessible from the foreign network. Network services are provided by or through a configuration adapter connected to the device or to the foreign network.

Abstract: A method for communicating to a host information during an existing networking session. The method comprises the steps of establishing computer network access to a user's host through a gateway interface, creating information and control console packets at the gateway interface, sending the information and control console packets to the user's host, and generating an information and control console on the monitor of the user's host that comprises data. The data will typically comprise user-specific data based upon a user's profile, the chosen billing scheme, the chosen service level or the location from which the user desires access. The gateway interface is capable of transparently connecting the user/subscriber to multiple networks without the need to reconfigure the user's host computer. The information and control console allows the gateway administrator to provide information to the user/subscriber.

Abstract: A soft switch providing wireless PBX voice services to a local area network (WLAN) is used to extend PBX functionality to the cellular domain. A dual mode remote unit is capable of receiving signals both in the cellular system as well as the WLAN. The cellular system is comprised of a data-bearing path and a voice-bearing path. When the dual mode remote unit is within the WLAN, it communicates both voice over IP (VoIP) signaling as well as session initiation protocol (SIP) control signaling over the WLAN. When the remote unit is outside the WLAN, it communicates voice signaling over the voice-bearing path of the cellular network using a standard cellular voice channel. In parallel, it uses the data-bearing path of the cellular network to transmit SIP control signaling.

Abstract: A method and apparatus for achieving seamless, Internet Protocol (IP) wireless station mobility by using an Internet Protocol (IP) router to receive and classify IP packets and route them to their desired destination based on these classifications as the IP host moves between networks. The use of this method and apparatus provides a transparent network to facilitate Internet mobility management.

Abstract: A method and apparatus for operating a wireless telecommunication system utilizing code division multiple access (CDMA) over-the-air with a Global System for Mobile communications (GSM) A-interface based network is described. A CDMA radio frequency (RF) signal interface provides a bi-directional interface to a subscriber unit, and a Global System for Mobile (GSM) communications A-interface SS7 transport provides a bi-directional interface with GSM mobile services switching center (MSC). Additionally, a transparent message transport is provided over which signaling messages defined in the GSM A-interface protocol are exchanged between the GSM MSC and a subscriber unit. Other signaling message generating by the GSM MSC and subscriber unit are processed and various actions are taken in response, including the configuration and control of signal processing resources.

Abstract: The wireless system includes one or more payphones from which users may initiate payphone calls. A mobile switching center connects telephone calls initiated from wireless payphones to external telephone systems such as the public switch telephone network (PSTN). To meter charges incurred during the telephone call within an external system, the external system transmits periodic metering pulses to the mobile switching center. Each pulse is representative of a predetermined amount of money associated with the telephone call. The rate at which the periodic pulses are transmitted to the mobile switching center depends upon the current billing rate and may be affected by, for example, the time of day.

Abstract: A method and apparatus for operating a wireless telecommunication system utilizing code division multiple access (CDMA) over-the-air with a Global System for Mobile communications (GSM) A-interface based network is described. A CDMA radio frequency (RF) signal interface provides a bi-directional interface to a subscriber unit, and a Global System for Mobile (GSM) communications A-interface SS7 transport provides a bi-directional interface with GSM mobile services switching center (MSC). Additionally, a transparent message transport is provided over which signaling messages defined in the GSM A-interface protocol are exchanged between the GSM MSC and a subscriber unit. Other signaling message generating by the GSM MSC and subscriber unit are processed and various actions are taken in response, including the configuration and control of signal processing resources.