A method for determining the position of a mobile communication device using a measuring plan, comprising the method steps of: a1) predetermining, in a first mobile and wireless communication device which stores an executable map-based navigation program, the position coordinates of a geographic destination which the first mobile communication device will substantially reach at a future point in time, and predetermining a positional accuracy for at least one of the position coordinates of the geographic destination; a2) executing the map-based navigation program for being able to guide a user of the first mobile communication device to the predetermined geographic destination; b) combiling a first measuring plan for obtaining position information which include position coordinates and their accuracies, and/or observation information which include observation values and their accuracies, wherein the first measuring plan includes specifications about the measurements to be collected and information about the time and/or the position of execution of the first measuring plan; c) generating simulated measurements on the basis of the first measuring plan, in order to obtain test position information and/or test observation information, and performing an adjustment procedure on the test position information and/or test observation information for providing test results regarding the position coordinates of the predetermined geographic destination and the positional accuracy of the at least one position coordinate; d) verifying, in response to the test results, whether the positional accuracy predetermined in step a) can substantially be achieved when executing the first measuring plan; if so e) executing the first measuring plan on the basis of the information contained in the first measuring plan, by causing the collection of the measurements contained in the first measuring plan to obtain current position information and/or observation information; and f) performing network adjusting on the basis of the current position information and/or observation information obtained in step e) to calculate the position coordinates of the first mobile communication device and the positional accuracy of the at least one position coordinate for the time at which the first mobile communication device will substantially reach the geographic destination. a1) predetermining, in a first mobile and wireless communication device which stores an executable map-based navigation program, the position coordinates of a geographic destination which the first mobile communication device will substantially reach at a future point in time, and predetermining a positional accuracy for at least one of the position coordinates of the geographic destination; a2) executing the map-based navigation program for being able to guide a user of the first mobile communication device to the predetermined geographic destination; b) combiling a first measuring plan for obtaining position information which include position coordinates and their accuracies, and/or observation information which include observation values and their accuracies, wherein the first measuring plan includes specifications about the measurements to be collected and information about the time and/or the position of execution of the first measuring plan; c) generating simulated measurements on the basis of the first measuring plan, in order to obtain test position information and/or test observation information, and performing an adjustment procedure on the test position information and/or test observation information for providing test results regarding the position coordinates of the predetermined geographic destination and the positional accuracy of the at least one position coordinate; d) verifying, in response to the test results, whether the positional accuracy predetermined in step a) can substantially be achieved when executing the first measuring plan; if so e) executing the first measuring plan on the basis of the information contained in the first measuring plan, by causing the collection of the measurements contained in the first measuring plan to obtain current position information and/or observation information; and f) performing network adjusting on the basis of the current position information and/or observation information obtained in step e) to calculate the position coordinates of the first mobile communication device and the positional accuracy of the at least one position coordinate for the time at which the first mobile communication device will substantially reach the geographic destination.