Patent ID: 8738030

Claim:
An apparatus for determining a correspondence of a position with a reference position, wherein radio signals of stationary radio transmitters are receivable at the position, comprising: a determiner for determining an identification of a certain radio transmitter and for determining a signal characteristic of a radio signal of the certain radio transmitter at a first time, wherein the identification and the signal characteristic of the radio signal of the certain radio transmitter represent at least part of a measurement packet for the position; a processor for post-processing the measurement packet to acquire a post-processed measurement packet for the position, wherein the processor for post-processing is implemented to at least temporarily synthesize the signal characteristic of the certain radio transmitter, starting from the first time up to a second time after the first time, for which the identification of the certain radio transmitter cannot be determined, when the first time was the last time before the second time when the identification of the certain radio transmitter was determinable, and when a first time duration of more than or equal to 0.5 seconds lies between the first and second times; and a comparator for comparing the post-processed measurement packet with at least one previously determined reference measurement packet for the reference position to determine the correspondence.