FIELD: physics; communication.
SUBSTANCE: invention relates to wireless communication, and more specifically to wireless systems which use assistance window data in signal acquisition in order to help a receiver in acquisition of selected signals. The result is achieved due to that, conformity of acquisition assistance windows is examined using a posteriori knowledge of specific, or hypothetical, position measurements from a mobile station. A base station almanac manager compares mobile station measurement data to acquisition assistance window data, records the result based on the comparison including a window quality value (WQ), or range of window quality values. Source data used in generation of acquisition assistance windows is adjusted according to the window quality value.
EFFECT: provision for control of assistance window value in positioning signal acquisition of a positioning auxiliary system.
31 cl, 5 dwg
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