Abstract: The present invention provides a method for allocating resources in a wireless communication system. The method may include selecting at least one resource control bit that is not to be transmitted. The at least one resource control bit is selected based on at least one priority associated with the at least one resource control bit.

Abstract: Bridged polysesquioxane compositions comprising: a bridged polysesquioxane host matrix comprising sesquioxane moieties and organic moieties, the sesquioxane moieties comprising a metallic element, the organic moieties interposed between sesquioxane moieties; and a guest molecule comprising a lanthanide atom; at least some of the organic moieties comprising a substituent selected from the group consisting of electron withdrawing functional groups and electron donating functional groups. Processes for making such bridged polysesquioxane compositions. Gain media and active materials for upconversion lasers comprising such bridged polysesquioxane compositions. Light can be amplified by fluorescence emissions from the bridged polysesquioxane compositions.

Abstract: A method of transmitting information over a feed back channel of a communication system that has multiple antenna systems is provided. Long term channel condition information is obtained from received measured and/or calculated channel parameter values. The obtained long term channel condition information is arranged in a particular manner and transmitted over a defined time period during which the long term channel condition information varies relatively slowly. Because the long term information remains relatively constant for one or more defined time periods, the amount of bandwidth needed to communicate this value is small because it need only be communicated occasionally. Thus only a small bandwidth needs to be allocated for transmitting this long term information.

Abstract: An information and communication system uses an web page like environment or “Personal Space” to integrate a plurality of communication and monitoring functions. Home or enterprise automation components are linked together via wired or unwired network links and accessed via the Personal Space. Communications services are accessed through a wide variety of devices and facilitated by the Personal Space. Databases are built and used to customize user services. User profiles and system use patterns are compared and analyzed to continuously improve system performance.

Abstract: The present invention provides a method and an apparatus for controlling a Q-factor for a filter. The method comprises stabilizing an active feedback to provide a variable feedback in a filter, varying the active feedback based on an input signal to the filter, and producing a desired Q-factor for the filter at a first frequency band, in response to the variable feedback. The method further comprises reconfiguring a center frequency and a bandwidth of the filter based on a channel bandwidth of the input signal to the filter to adjust the Q-factor for the filter in response to a second frequency band different than the first frequency band. By reconfiguring a center frequency and a bandwidth of a filter, the Q-factor for the filter, such as a flexible or reconfigurable filter, may be controlled across a multiplicity of frequency band signals.

Abstract: A high-speed optical modulator constructed from a number of lower speed intensity modulators integrated onto a single optical chip.

Abstract: A fast and efficient method for network re-optimization is described. In one embodiment, the technique uses an algorithm that requires limited aggregate information to continually monitor the network for re-optimization opportunities. The re-optimization of the present invention enables a network to accommodate more traffic without adding capacity. The re-optimization of the present invention is performed only when network efficiency benefits above a predetermined threshold may be obtained. In addition, a least-cost set of sessions is determined to perform the re-routing of the present invention to attain the desired network efficiency.

Abstract: Method for providing controlled access to an XML document includes defining at least one access control policy for a user of the XML document, deriving a security view of the XML document for the user based upon said access control policy and schema level processing of the XML document and translating a user query based on the security view of the XML document to an equivalent query based on the XML document. An apparatus for same includes means for defining an access control policy for a user of the XML document and means for deriving a security view of the XML document for the user based on said access control policy and schema level processing of the XML document. Also included are means for translating a user query based on the security view of the XML document to an equivalent query based on the XML document.

Abstract: A low-loss rectangular-passband multiplexer including a three-arm interferometer coherently connected to a waveguide grating router (WGR), resulting in a passband substantially of type N=3, without intrinsic loss. The three-arm interferometer has a free-spectral range (FSR) substantially equal to the channel spacing and is connected to an M-arm interferometer having a much larger FSR. The three-arm interferometer includes three waveguides each exhibiting a linearly increasing path length optically connected to a 1×3 coupler and a 3×3 coupler. The 1×3 coupler may be constructed from a series of Y-branch couplers.

Abstract: A polarization-diverse optical amplifier includes a polarization-sensitive optically active medium and a polarization splitter. The polarization splitter is configured to receive input light, to direct a first polarization component of the received input light to a first optical path segment, and to direct a second polarization component of the received input light to a separate second optical path segment. The active medium has first and second optical ports. The first optical port is at an end of the first optical path segment. The second port is at an end of the second optical path segment. The active medium outputs amplified light from one of the ports in response to receiving the input light at the other of the ports. In a preferred embodiment, the active medium has an internal optical axis, and the polarizations of the first and second components are oriented relative to that axis so that amplification is enhanced. The two optical path segments may include polarization-maintaining optical waveguides.

Abstract: A method of controlling link transmission parameters of a communication flow in a network caches one or more network parameters at the end of a first communication flow for an elapsed time, and adjusts the network parameters for controlling link quality and transmit power of a next communication flow based on an uncertainty that is caused by caching for the elapsed time. The state of a communication channel during a previous communication flow (connection) is used to determine network parameters to use at a future communication flow. When a connection begins, and the network does not know the ideal settings to use, the network defines a specified, elapsed time duration over which the state of a previous connection no longer can be trusted, i.e., an uncertainty period. Network parameters are adjusted to account for uncertainty caused by the elapsed time.

Abstract: The present invention may provide a method of communication that includes selecting at least one access channel for transmission of data based on a channel condition. The present invention may also provide a method of communication that includes receiving data over at least one access channel selected for transmission based on a channel condition.

Abstract: Diverse semiconductor structures are fabricated on a single substrate or wafer by using a non-selective area growth technique involving deposition of material over the entire substrate. The fabricated structures are obtained by selective removal of portions of the deposited material layers. Single level and multi-level structures are possible.

Abstract: The adjacency of access points in a wireless, local area network is used to determine the existence of common overlapping access point coverage areas and to determine maximum distances between access points.

Abstract: An optical switching architecture utilizing a multiple stage configuration of wavelength division multiplexed (WDM) component wavelength converters and cyclic arrayed waveguide grating (AWG) router.

Abstract: A software upgrade in a network node that includes primary and secondary control modules is provided by downloading a computer software upgrade onto the secondary control module, selecting the computer software upgrade to use on reboot of the secondary control module, rebooting the secondary control module using the computer software upgrade, and switching control of the network node from the primary control module to the secondary control module after the rebooting.

Abstract: The present invention provides a method and an apparatus for controlling a communications system that includes a mobile wireless device, a first and a second base station and a radio network controller. The communications system may allocate frequency bands to users on a multiplicity of channels associated with a multi-layer access network across at least two cells communicatively coupled to a first and a second base station, respectively. The method comprises monitoring a radio emission parameter associated with the first and second base stations that communicate with the mobile wireless device. A radio emission parameter associated with the first and second base stations, such as signal strength or quality, is monitored, to select a target cell among a set of candidate cells for the mobile wireless device and to transfer the mobile wireless device from a first frequency band to a second frequency band.

Abstract: A system and method for transmitting and receiving control information over a control channel of a wireless communication system where the conveyed information is coded and then transformed by a set of transform function selected from a plurality of sets of transform functions. The control information is transmitted as replicated sub-frames containing replicated code words and such a string of transformed replicated code words is referred to as a control message. At a receive end inverse transform functions from different sets of functions are applied to a sub-frame of a control message so that if the sub-frame is successfully decoded the inverse transform function applied to such frame allows the timing of the control message to be determined.

Abstract: In one embodiment, an integrated magnetometer has a deformable, electrically conducting beam that is mounted on a substrate and adapted to oscillate with respect to the substrate. When the oscillating beam is exposed to a magnetic field, the magnetic field induces an oscillating electromotive force that generates an oscillating electrical signal along the beam. The magnetometer has a detection circuit that detects this oscillating electrical signal and, based on the results of this detection, determines the magnetic-field strength and/or the magnetic-field gradient.

Abstract: In a UMTS (universal mobile telecommunications system) based system, a wireless receiver implements “effective signal-to-noise (Eb/No) based BER estimation.” In particular, the wireless receiver comprises a rake receiver, a processor and memory. The rake receiver processes a received signal and provides signal-to-noise ratio values for each slot of each received frame of the received signal. The processor converts these signal-to-noise ratio values for each received frame into an effective signal-to-noise ratio value for the received signal. The processor then uses the effective signal-to-noise ratio value as a pointer, or index, into a look-up table (stored in the memory) and retrieves a BER estimate therefrom.