Patent ID: 7809051

Claim:
Method for performing a statistical test on a device or radio channel, which has N outcomes in the form of N different events wherein N is higher than two, comprising: measuring ns samples of the output of the device or radio channel under test, whereby occurs a specific number of each event, defining a specific limit for the test in a space spanned out by specific numbers of each event, erecting a N−1 dimensional likelihood distribution on several points of the limit, wherein the N−1 dimensional likelihood distribution is an N−1 dimensional binomial distribution, and constructing a threshold for fail of the radio channel or device and a threshold for pass of the radio channel or device by summing or integrating the N−1 dimensional likelihood distribution along unbroken paths parallel to the limit L until a predefined confidence level is reached, wherein the device or radio channel has three outcomes in the form of three different events and the two-dimensional binomial distribution p ⁡ ( na , nb ) = ( n ⁢ ⁢ s na ) ⁢ Ra na * ( n ⁢ ⁢ s - na nb ) ⁢ Rb nb * ( 1 - Ra - Rb ) ( n ⁢ ⁢ s - na - nb ) is used, wherein ns is the number of samples, na is the number of first events within the ns samples, nb is the number of second events within the ns samples, Ra is the true ratio of the occurrence of the first event to all events, Rb is the true ratio of the occurrence of the second event to all events, and p(na,nb) is the probability of the occurrence of na first events and nb second events.