In an information transmission method, a radio communications system, a base station and a mobile station, a TBS size, a modulation scheme and the number of codes in a multicode are converted into identification data having a relatively smaller data size before being transmitted to a destination of communication. More specifically, the present invention relates to methods for determining a dive angle for grain. An SNR estimator receives the samples and provides an SNR metric and a multipath estimator receives the calculated filter weights and provides a multipath metric. The system also includes a first digital network, and a first central control unit. An average pore size of the ePTFE is not less than 0. In accordance with this later method, the substrate is subjected to a seed metallization etch, followed by a microetch.