Abstract: A test system includes a test device configured to output a command address and a test dock for performing a test mode and to receive a comparison signal, and a memory device configured to enter the test mode, based on the command address, to set an initial value by the command address, to perform a calculation operation on the initial value according to a logic level combination of the command address to generate a row address and a command address during a pre-charge operation, and to compress and compare internal data output based on the row address and the column address to output the internal data as the comparison signal to the test device.

Abstract: In a mobile telecommunication system that includes a base station providing communication service to a plurality of mobile stations moving within service coverage areas and a mobile switching center (MSC) connecting the base station to a public switched telephone network (PSTN), a method for the mobile switching center to send a registration request order message to the base station requesting one of the plurality of mobile stations to register. The registration request order message includes message type information, cell identifier list information, mobile identity information, slot cycle index information and signaling type information.