A connecting arrangement for fluid-conducting tubes has a further fluid transporting component. A first version of the bottle holder has a clip for attachment to the belt or waistband of the user’s clothing. The present invention performs timing offset estimation for multiple users on the basis of the received pilot sequences, therefore provides more accurate measurement values for timing offset compensation and timing offset reporting, so as to reduce the influence of the timing offset on the receiver performance. The low power scan architecture is advantageous to ICdie manufacturers since it allows a larger number of circuits embedded in an ICdie to be tested in parallel without consuming too much power within the ICdie. The invariants are then passed to a verification algorithm, which outputs a trace satisfying these invariants.