In a method of transmitting control signals for uplink transmission of packet data in a communication network, control signal data related to scheduling a user for uplink transmission of packet data is transmitted over a single control channel. The method can be used for invariant search to match patterns of interest in images where the searched pattern varies in size or orientation or aspect ratio, when pattern appearance is degraded, and even when the pattern is partially occluded, where the searched image is large, multidimensional, or very high resolution, or where the pattern size is large. The magnetic sensing element has molecules of a first specific binding member attached to it. Operations of the application programs are coordinated with operations of other programs using the information concerning the reliabilities corresponding to the application programs. Further since the reproduction signals are amplified by the magnetic domain enlargement, the CN is improved.