Abstract: A method and circuit for adaptively estimating channel conditions of a pilot channel in a wireless communication system. The method includes estimating channel statistics of the pilot channel, and adaptively filtering the pilot channel in response to the estimated channel statistics. The estimation is performed by filtering a channel signal derived from the pilot channel to determine an estimated channel mean and an estimated channel covariance. In order to perform the adaptive filtering, the present invention partitions the pilot channel into one or more time slots and weights each time slot according to the channel statistics. Thus, an advantage of the present invention is that it automatically and continually updates the pilot filter parameters in order to optimize the pilot filter performance over a broad range of channel conditions.

Abstract: A wireless communication device contains a speed-dial storage area containing one or more user-entered destination telephone numbers. An additional memory area contains the plurality of sets of additional digits to be added to the user-entered destination telephone number. The user associates one or more additional sets of digits to a selected user-entered destination telephone number. A control processor automatically adds the associated set of additional digits whenever the user-entered destination telephone number is selected. The sets of additional digits may be pre-programmed by the service provider or programmed by the user. The sets of additional digits may include codes for features such as caller identification transmission, caller identification blocking, message waiting cancellation, and the like. In addition, other sets of digits, such as area codes and other prefixes may be pre-programmed by the service provider or the user.