Abstract:
A technique of providing wireless network service utilizes an initial threshold to determine whether a signal received from a cellular device is of sufficient strength to warrant further processing. The technique may be implemented in a power controller of a base station, where the power controller includes an outer loop power control and an inner loop power control. The outer loop power control determines the strength of the received signal and compares it to an initial threshold. If the signal strength is below the initial threshold, the outer loop power control does not process the signal further. However, if the signal strength is above the initial threshold, the outer loop power control determines whether the signal contains any errors. If not, the signal is processed normally. If so, the outer loop power control may increase the signal-to-noise (SNR) threshold of the inner loop power control, which may cause the inner loop power control to attempt to increase the transmission power of the cellular device. By increasing the transmission power of the cellular device, the received signal will typically gain strength, resulting in an error-free signal.
Abstract:
A method for forming a microstructure is disclosed in which, after a polymer substance has been applied to a first substrate, the first substrate is micromachined to remove at least one portion of the first substrate. A second substrate is then adhered to the first substrate via the polymer substance. One application of such a method is in the fabrication of three-dimensional microfluidics. The polymer substance may, for example, be benzocyclobutene (BCB), and the first substrate may, for example, be a silicon wafer or a photo-etchable glass.
Abstract:
A method of adaptively determining a threshold for determining whether an error associated with a frame is an erasure or the result of a discontinuous transmission (DTX) uses a sample set of recently received frames yet avoids undesirable influences on the threshold that otherwise might be caused by the number of erasures in the sample set. A disclosed example uses a histogram-based approach and a simulated sort through the histogram to determine an appropriate threshold value. In a disclosed example the lesser of a bad frame threshold guideline value and a good frame threshold guideline value provide the threshold used to distinguish between a DTX and an erasure.