Abstract: Non-uniform spatial loads are estimated for a plurality of bins corresponding to a cellular wireless territory served by Base Station Transceivers (BTS's). Using means and standard deviation of signal strength received at each of the bins from each of the BTS's, probabilities are computed for each bin such that each of the BTS's will serve the bin. Using the computed probabilities and an estimated offered load for each BTS, which load is derived from carried load and call lost measurements at the BTS, a resource constraint is then expressed for each BDS in terms of the bin offered load estimates. Next, using an approximation of relative demand for wireless services across all bins, based, for example, on demographic data, a performance function is expressed for each bin in terms of the bin's estimated offered load. Using the performance function a lexicographic minimax objective function is defined, which is then coupled with the resource constraints to express an equitable resource allocation model.

Abstract: Entity identity information and location identity information are sensed and made available to subscriber applications through a secure location-aware services infrastructure, thereby allowing for the creation of location-based services. Information detected by a sensor is passed to an interface aggregator for conversion to a standardized format and then forwarded to location registers for the domain of the sensors. Subscriber applications query the registers to determine which entities are in a particular location and to determine the location of entities. By unifying diverse sensing technologies, location information can be simultaneously obtained on varying degrees of granularity. In addition, the system is scalable to large scenarios by using a plurality of sensors, interface aggregators, and registers.

Abstract: Methods and systems provide a mobile workforce remote access to legacy systems utilizing a wireless communications network with a wireline network available as a backup network. This system includes portable personal computers in communication with the wireless or wireline communications network, protocol servers for receiving and forwarding messages to and from the portable personal computers, and an interface in communications with the protocol servers and legacy systems.

Abstract: Reliably detecting voiceband signaling tones at a subscriber or network device in the presence of near-end and far-end speech occurs by eliminating, rather than balancing, near-end talk-off and by separately handling far-end talkoff and near-end talkdown. A tone detector is placed on the receive path of the device. One or more frequencies that comprise the tone to be detected by the tone detector are attenuated/removed from the near-end speech present on the send path of the device thereby preventing the near-end speech from talking-off the tone detector. Near-end talkdown and far-end talkoff are eliminated by utilizing two separate signal-to-guard ratios within the tone detector: a large signal-to-guard ratio to combat the effects of the far-end talkoff and a small signal-to-guard ratio to combat the effects of the near-end talkdown. The tone detector is switched between the two signal-to-guard ratios by predicting whether the near-end is speaking.

Abstract: Utility failures are automatically detected and potential causes for these failures are automatically located and identified without having to physically search a utility provider's network. Detection systems capable of monitoring utility status are located at each, or a subset, of the customer premises serviced by a utility provider. A monitoring system, capable of correlating the geographical location of the detection systems with the geographical location of the equipment that comprises the utility provider's network, is located at a utility provider and interconnects with the detection systems through a communications network. The monitoring system queries the detection systems to determine utility status and to subsequently locate an outage and deduce a possible cause for the outage. Detection systems can also be configured to automatically contact the monitoring system to report utility status.

Abstract: A method and system for providing suppression of near-end speech energy for tone signal detectors. In accordance with the invention a system or device is connected between the tip and ring on a subscriber loop, the subscriber loop being connected to office equipment and that subscriber's station set. The system also includes a receive interface that is connected to either a tone signal detector or a frequency shift keying modulator. The system achieves speech cancellation by forming a Wheatstone bridge with a mirror circuit possessing a scaled image of the loop and office equipment impedance. In one embodiment of the invention the Wheatstone bridge is formed using the combined impedance of the loop and office equipment as the impedance that is to be matched by a set of balanced networks included within the system.