| 摘要 |
Statistical measurement equipment used in a communication system wherein individual cell streams with variable cell rates are multiplexed on a same link. The equipment includes a common circuit (CCC) with a first counter (CR1/8) counting a first number (A.B) of first cells of the multiplexed cell stream, and individual circuits (MMC, VMC, PMC) checking the mean, variance and peak of the probability distribution function of the variable cell rate. For instance, the MMC includes a second counter (MC) which counts the second cells of an individual cell stream and is reset by the first counter when the latter has counted the first number, the ratio of a second number of these cells and the first number constituting an expected value of the mean. As a consequence when the second number is counted this is indicative of the fact that the expected value of the mean is exceeded. |
