Verizon Laboratories Inc.

Gte Laboratories Incorporated

Verizon Patent and Licensing Inc.

Verizon Services Organization Inc.

Vincent A O'Byrne

Rajamani Ganesh

Donna Fagen

Dimitris N Kalofonos

Ning Yang

Stanley J Wynman

Brian H Whitton

Thomas Maguire

Aline Yurik

A system is provided for powering an optical network terminal, including a power adapter connected to the optical network terminal and configured to power the optical network terminal; and a battery tray, connected to the power adapter, configured to supply auxiliary power to the optical network terminal through the power adapter from one or more batteries contained within the battery tray, wherein the battery tray is configured to allow removal and replacement, at the customer premise, of the one or more batteries.

Auxiliary power system for optical network terminal

Optical devices in optical network exchange signals at a plurality of wavelengths via a plurality of pathways. Each of the optical devices is associated with a corresponding wavelength and includes multiple optical inputs/outputs (I/Os) to exchange signals at the corresponding wavelength via the plurality of pathways. During maintenance or failure of one of the optical I/Os in an optical device associated with a wavelength, communications are maintained in the optical network by switching communications at a same wavelength to another a different pathway and/or reforming the optical network using other wavelengths. For example, an optical network unit (ONU) may identify an error in a first wavelength associated with a first optical device included in an optical line terminal (OLT) and may forward data using a second wavelength associated with the other optical device included in the OLT.

Optical network system architecture

A method is provided including the steps of monitoring at least one performance metric of at least one network component in an optical network system, determining whether the at least one network component is a rogue network component using the at least one performance metric, saving environment data to a non-volatile storage medium, and modifying the operation of the rogue network component to reduce interference of the rogue network component with the optical network system. In another embodiment, a method includes detecting a condition of a network component in an optical network system, and writing environment data of the network component to a non-volatile storage medium.

Optical network terminal agent

A system () provides a network designer with a mechanism for analyzing the performance of a code division multiple access wireless network (). The system () includes executable code in the form of a probable server identification module (), a forward link initial estimation module (), a reverse link initial estimation module (), a forward link analysis module (), and a reverse link analysis (). The modular architecture of the modules (, and) are appropriately configured and interconnected in order to form a network performance analysis process () that accurately analyzes both the reverse link performance and the forward link performance of the network ().

Method and system for analyzing digital wireless network performance

A system increases the capacity of a CDMA network having a plurality of cell sites. The system defines a pool of frequencies available for assignment, and assigns one of the available frequencies to each of the cell sites so as to minimize the number of neighboring cell sites assigned a same one of the available frequencies. By deploying different frequencies in the cell sites, the amount of interference caused by neighboring cell sites reduces. As a result, the capacity of each of the cell sites operating at a single frequency can be increased, so long as there remains sufficient power to reach the mobile units operating within the cell site. The system attains maximum benefits when the cell sites are located close together and the propagation exponent is low (for example, 10-20 dB/decade).

System and method for increasing CDMA capacity by frequency assignment

A system ( ) provides a network designer with a mechanism for analyzing the performance of a code division multiple access wireless network ( ). The system ( ) includes executable code in the form of a probable server identification module ( ), a forward link initial estimation module ( ), a reverse link initial estimation module ( ), a forward link analysis module ( ), and a reverse link analysis ( ). The modular architecture of the modules ( and ) are appropriately configured and interconnected in order to form a network performance analysis process ( ) that accurately analyzes both the reverse link performance and the forward link performance of the network ( ).

A computing system ( ) provides a network designer with a mechanism for modeling migration, or a shift, of call traffic from a first server ( ) operating using a first technology type to a second server ( ) operating using a second technology type. The system ( ) executes a traffic map generation process ( ) for generating a first traffic map ( ) responsive to a radio coverage area ( ) and a call traffic load ( ) for the first server ( ), and for generating a second traffic map ( ) responsive to a radio coverage area ( ) and call traffic load ( ) for the second server ( ). The system ( ) executes a call traffic migration modeling process ( ) to adapt the second traffic map ( ) to include a proportion ( ) of the first call traffic load ( ) to be shifted from the first server ( ) to the second server ( ).

Method and system for modeling migration of call traffic in a multiple mode wireless network

A system ( ) provides a network designer with a mechanism by which to quickly estimate the performance of a code division multiple access wireless communication network. The system ( ) allows the designer to enter a group of network and sector parameters. Based on these parameters, the user can choose one of three methods depending on a desire for speed, accuracy, and generality of result. The system ( ) determines the pilot strength and interference for each location in the network. The system ( ) determines pilot strength to interference values for each location. The system ( ) estimates the performance of the communication network using these determined values and accounting for user-defined network parameters.

System and methods for rapidly determining CDMA network performance

A cellular network includes first cell sites having a first layout and second cell sites, interspersed among the first cell sites, having a second layout. The layout refers to the orientation of the antennas in the cell sites. By making the second layout different than the first layout, the amount of interference in the network reduces and, thus, the capacity of the network increases.

System and method for increasing capacity of a cellular network by cell site reconfiguration

In a code division multiple access (CDMA) radio communications network ( ) having a plurality of cells ( ) subdivided into sectors ( ), a computer based method ( ) and a computing system ( ) determine a neighbor list ( ) for a selected one of the sectors ( ). The sector ( ) is subdivided into a plurality of locations ( ). For each location ( ), a primary pilot channel ( ) exhibiting a primary signal quality ( ) is distinguished. Secondary pilot channels ( ) are identified exhibiting secondary signal qualities ( ) within a signal quality threshold window ( ) of the primary signal quality ( ) of the primary pilot channel. The primary and secondary pilot channels ( and ) are included in the neighbor list ( ) for the sector ( ) as candidate handoff channels ( ). The candidate handoff channels ( ) are arranged in a ranked order in the neighbor list ( ) such that those candidate handoff channels ( ) having a higher rank have a greater likelihood for inclusion in a neighbor set of a mobile station ( ) residing in the serving area of the sector ( ).

Method and system for determining a neighbor list for a code division multiple access (CDMA) sector

An interference analyzing system and method analyze interference in a dual mode system having a digital network overlaid on an analog network. The digital network includes portable units operating within digital cell sites; whereas, the analog network includes mobile units operating within analog cell sites. The interference analyzing system measures the amount of interference caused by and to the portable units, and the amount of interference caused by and to the digital cell sites. The system individually compares these interference amounts to a predetermined threshold. If either of the interference amounts exceeds the predetermined threshold, the system selects one of the analog cell sites for spectrum clearing and determines the amount of spectrum to be cleared from the selected analog cell site.

System and method for determining guard zone and guard bands in a

Apparatus and method for measuring the radio signal (RF) transmission statistics of a communication channel. The apparatus is arranged to receive and process a wide bandwidth signal from which signal power is measured and from which fading or other such transmission problems can be measured for the wide bandwidth. In parallel with the wide bandwidth receiver there is a narrow bandwidth receiver arranged to receive the same RF signal but to process only a single tone or narrow bandwidth portion of the RF signal. From this narrow bandwidth processing the narrow bandwidth transmission statistical characteristics of the RF transmission channel can be measured simultaneously with the wide bandwidth statistical characteristics. The outputs of the spectrum analyzer are digitized and fed to a computer for storage and for other analysis.

Apparatus and method for simultaneous measuring of narrow and wideband

In an optical heterodyne communication system for transmission of multiple optical channels at different wavelenths, the optical channels are grouped into blocks for increased utilization of the available bandwidth. The spacing between optical channels within a block is typically equal to or somewhat greater than the channel bandwidth. The spacing between blocks is such that when the optical signal is heterodyned with a local oscillator lightwave, the interference with a selected optical channel from adjacent blocks does not exceed a predetermined level.

Compressed channel spacing for optical heterodyne communication systems

Apparatus for optical transmission of first and second digital channels. Each digital channel has first and second signal levels. The appparatus has a tunable laser for emitting an optical output at optical frequencies corresponding to current levels. Current responsive to the signal levels of the two channels provides current levels to cause the laser to emit a first optical frequency when the first channel has a second signal level and the second channel has a second signal level, a second optical frequency when the first channel has a first signal level and the second channel has a second signal level, a third optical frequency when the first channel has a first signal level and the second channel has a first signal level, and a fourth optical frequency when the first channel has a second signal level and the second channel has a first signal level. An optical transmission medium is coupled to the output of the laser. A tunable optical filter is coupled to the optical transmission medium. The filter is tuned to pass a pair of adjacent optical frequencies corresponding to a signal level on a selected channel. A baseband detector at the output of the optical filter for provides a mark when either of the pair of optical frequencies passes through the optical filter. The mark is indicative of a signal level on the selected channel.

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Brighton, MA, United States of America

Vincent A O'Byrne