Abstract: A wireless local area network (WLAN) system is provided. The system comprises a WLAN network controller and a plurality of access points. The WLAN network controller is in communication with each of the plurality of access points via a transport data network. The WLAN network controller is configured to perform one or more network control functions for the benefit of the plurality of access points. The network control functions may be selected from management and operation, client authentication, mobility, and per-user administration. The WLAN network controller is remotely located and operated with respect to the plurality of access points.

Abstract: A fringe-effect antenna module includes coupling structure configured to couple the module to a communications vault that is disposed substantially at ground level. A support structure (which preferably includes an electronics unit) is coupled to the coupling structure, and at least one antenna element is coupled to the support structure. A metallic deflector is coupled to at least one of (i) the coupling structure and (ii) the support structure. The metallic deflector has an edge that is positioned substantially parallel to the ground so as to cause a fringe effect upon the RF signals of the antenna to cause those RF signals to bend in a direction toward the ground.

Abstract: A wireless local area network (WLAN) system is provided. The system comprises a WLAN network controller and a plurality of access points. The WLAN network controller is in communication with each of the plurality of access points via a transport data network. The WLAN network controller is configured to perform one or more network control functions for the benefit of the plurality of access points. The network control functions may be selected from management and operation, client authentication, mobility, and per-user administration. The WLAN network controller is remotely located and operated with respect to the plurality of access points.

Abstract: A system and method for managing information communication in a network includes a plurality of network nodes. A plurality of circuit emulation data flows are established between a first network node and at least a second network node. Different data transmission rates are assigned to each circuit emulation data flow such that the frequency of communicated packets is different at least for each circuit emulation data flow used for timing recovery to make the plurality of circuit emulation data flows substantially independent of each other. For example, different frame rates can be assigned to synchronous backhaul transmission links such that the frequency of the backhaul transmission rates is substantially independent of the circuit emulation flow rates.

Abstract: A high performance wireless mesh architecture which has been optimized for mobile end points is described. The mesh architecture is intended for Navy applications, where the wireless mesh network extends between mobile ships and includes ship-to-shore links, but it is equally applicable to other mobile elements on, in, or under land, air, sea, or space.

Abstract: A circuit for communicating information in a wireless network includes a filtering circuit in communication with a zero intermediate frequency (ZIF) transceiver circuit. The filtering circuit includes a first mixer in communication with an output of the ZIF transceiver circuit. The filtering circuit includes a first Surface Acoustic Wave (SAW) filter circuit in communication with an output of the first mixer. The filtering circuit includes a second mixer in communication with an output of the first SAW filter circuit. The filtering circuit includes a third mixer, and a second SAW filter circuit in communication with an output of the third mixer. The filtering circuit includes a fourth mixer in communication with an output of the second SAW filter circuit and an input of the ZIF transceiver circuit. The filtering circuit also includes a local oscillator circuit in communication with the first, second, third and fourth mixers.

Abstract: A high performance wireless mesh architecture which has been optimized for mobile end points is described. The mesh architecture is intended for Navy applications, where the wireless mesh network extends between mobile ships and includes ship-to-shore links, but it is equally applicable to other mobile elements on, in, or under land, air, sea, or space.

Abstract: Protocols and algorithms for contention-based adaptive modulation networks, typically used in unlicensed bands. A wireless system in which high modulation rate packets are prioritized over low rate packets. The wireless system is configured to process communication signals from plural user portable devices having wireless access points capable of dynamically adjusting access point transmit power on a user-by-user basis to a minimum level required to achieve a target signal-to-noise ratio from each user portable device irrespective of the interference observed on the link is also disclosed. The wireless system is also capable of dynamically adjusting access point transmitter power and receiver sensitivity on a user-by-user basis to a minimum level required to achieve the highest possible modulation rate.

Abstract: Described herein are a number of steps, methods and/or solutions that can be applied to greatly improve attenuation control of RF signals in cable plant. The present disclosure is directed to a cable modem auto-attenuation system or any other signal transferring system. The system may be capable of taking a high-power signal from the cable plant's service line, dropping the power value down to a usable level and transmitting the signal to a cable modem while eliminating the need for rigorous manual adjustments that a normal cable modem often requires. In certain embodiments, the system may be integrated into a separate device connected between the modem and the cable company service line and configured to handle upstream and downstream attenuation separately or jointly.

Abstract: A distributed or centralized network backhaul delay system includes a plurality of cellular base transceiver stations. Each cellular base transceiver station includes a network backhaul delay element. The network backhaul delay element is configured to calculate delay information associated with network delays between cell sites. The network backhaul delay element is configured to adjust and shape the relative network delays to minimize network delays between cell sites to enable soft handoff to be performed.

Abstract: A wireless network system is provided. The system comprises a wireless network controller and a plurality of access points and/or femtocells. The wireless network controller is in communication with each of the plurality of access points and/or femtocells via an access data network, and is configured to perform one or more network control functions for the benefit of the plurality of access points and/or femtocells. The network control functions may be selected from management and operation, client authentication, mobility, and per-user administration. The wireless network controller is remotely located and operated with respect to the plurality of access points and/or femtocells.

Abstract: A circuit for communicating information in a wireless network includes a filtering circuit in communication with a zero intermediate frequency (ZIF) transceiver circuit. The filtering circuit includes a first mixer in communication with an output of the ZIF transceiver circuit. The filtering circuit includes a first Surface Acoustic Wave (SAW) filter circuit in communication with an output of the first mixer. The filtering circuit includes a second mixer in communication with an output of the first SAW filter circuit. The filtering circuit includes a third mixer, and a second SAW filter circuit in communication with an output of the third mixer. The filtering circuit includes a fourth mixer in communication with an output of the second SAW filter circuit and an input of the ZIF transceiver circuit. The filtering circuit also includes a local oscillator circuit in communication with the first, second, third and fourth mixers.

Abstract: A network includes a plurality of network clusters. Each network cluster includes a plurality of nodes. At least one of the plurality of nodes includes a portal node. A portal node is a node with at least one link that crosses a boundary of the network cluster. Each portal node is configured to communicate detection packets for detecting the existence of other portal nodes within the network cluster. Each portal node is configured to communicate with nodes within the network cluster associated with the respective portal node to indicate that the respective portal node is a predetermined number of hops away from a virtual root bridge associated with the network cluster.

Abstract: A fringe-effect vault antenna includes a communications vault having a non-conductive cover disposed substantially at ground level. An antenna element is positioned in the communications vault. A metallic reflector has an edge, positioned substantially parallel to the ground, where the metallic reflector and the edge are configured to cause an edge diffraction, or “fringe-effect” upon the RF fields of the antenna to cause those RF fields to diffract in a direction toward the ground.

Abstract: A circuit for communicating information in a wireless network includes a filtering circuit in communication with a zero intermediate frequency (ZIF) transceiver circuit. The filtering circuit includes a first mixer in communication with an output of the ZIF transceiver circuit. The filtering circuit includes a first Surface Acoustic Wave (SAW) filter circuit in communication with an output of the first mixer. The filtering circuit includes a second mixer in communication with an output of the first SAW filter circuit. The filtering circuit includes a third mixer, and a second SAW filter circuit in communication with an output of the third mixer. The filtering circuit includes a fourth mixer in communication with an output of the second SAW filter circuit and an input of the ZIF transceiver circuit. The filtering circuit also includes a local oscillator circuit in communication with the first, second, third and fourth mixers.

Abstract: A distributed or centralized network backhaul delay system includes a plurality of cellular base transceiver stations. Each cellular base transceiver station includes a network backhaul delay element. The network backhaul delay element is configured to calculate delay information associated with network delays between cell sites. The network backhaul delay element is configured to adjust and shape the relative network delays to minimize network delays between cell sites to enable soft handoff to be performed.

Abstract: A system and method is provided for estimating the T1 timing error and clock recovery errors by processing timing information from the associated pseudowire packet stream(s) from which the T1 is derived. The timing errors are presented as MTIE measurements which are used to present alarms for a Network Operation Control centre and are used to accurately alarm error conditions where the regenerated or derived T1 signal does not meet MTIE or clock accuracy errors. This alarm is intended to detect conditions of excessive packet jitter, wander or phase transients which may exist in the data network over which the pseudowire stream is transported. In another aspect, the errors are used to control the regeneration of the T1 clock information.

Abstract: A wireless local area network (WLAN) system is provided. The system comprises a WLAN network controller and a plurality of access points. The WLAN network controller is in communication with each of the plurality of access points via a transport data network. The WLAN network controller is configured to perform one or more network control functions for the benefit of the plurality of access points. The network control functions may be selected from management and operation, client authentication, mobility, and per-user administration. The WLAN network controller is remotely located and operated with respect to the plurality of access points.

Abstract: A wireless local area network (WLAN) system is provided. The system comprises a WLAN network controller and a plurality of access points. The WLAN network controller is in communication with each of the plurality of access points via a transport data network. The WLAN network controller is configured to perform one or more network control functions for the benefit of the plurality of access points. The network control functions may be selected from management and operation, client authentication, mobility, and per-user administration. The WLAN network controller is remotely located and operated with respect to the plurality of access points.

Abstract: A system and method is provided for estimating the T1 timing error and clock recovery errors by processing timing information from the associated pseudowire packet stream(s) from which the Ti is derived. The timing errors are presented as MTIE measurements which are used to present alarms for a Network Operation Control centre and are used to accurately alarm error conditions where the regenerated or derived T1 signal does not meet MTIE or clock accuracy errors. This alarm is intended to detect conditions of excessive packet jitter, wander or phase transients which may exist in the data network over which the pseudowire stream is transported. In another aspect, the errors are used to control the regeneration of the T1 clock information.