Abstract: A base station almanac (BSA) stores directional forward link calibration (FLC) values that correct for differences between the listed locations of base station antennas and the actual locations of the antennas. Each directional FLC value is specific to wireless signals that are transmitted from a particular base station antenna and propagate toward a particular receiving area. A mobile station operating in a receiving area measures a wireless signal from a base station antenna located outside of the receiving area to obtain a signal measurement. The location of the mobile station is determined by applying a positioning algorithm that uses the signal measurement corrected by the directional FLC value for that particular combination of base station antenna and receiving area.

Abstract: A base station almanac (BSA) stores directional forward link calibration (FLC) values that correct for differences between the listed locations of base station antennas and the actual locations of the antennas. Each directional FLC value is specific to wireless signals that are transmitted from a particular base station antenna and propagate toward a particular receiving area. A mobile station operating in a receiving area measures a wireless signal from a base station antenna located outside of the receiving area to obtain a signal measurement. The location of the mobile station is determined by applying a positioning algorithm that uses the signal measurement corrected by the directional FLC value for that particular combination of base station antenna and receiving area.

Abstract: A method for monitoring performance of a message-delivery system, such as an SMS delivery system for instance. According to the method described, key performance metrics will be collected from one or more message-routers and will be monitored over time to determine when a threshold problem condition occurs with the message-delivery system. In response to detecting a threshold problem condition such as (i) a threshold measure of difference in router-input and router-output, (ii) a threshold measure of change in message-queue length, and/or (iii) a threshold measure of message delivery attempts per message, an alert will then be generated, in order to inform network administrators or systems of a potential issue and to allow prompt remedial action to be taken.