It is an object of the present invention to solve a problem included in the onion routing which is used as a confidential communication method, that if a system down occurs in a computer within a communication route, connection is not made to further components at all, or a problem that the system and the traffic become slow by using multiplexed encryption. For the uplink, an RF unit of the BTS compresses signal samples resulting from analog to digital conversion of an analog signal received via an antenna. In comparison with the transmission power control performed by the conventional plural base station transmission, interference for the peripheral mobile station can be reduced to achieve higher down link capacity. The invention may be applied for normal short messaging also. An open end of the container is sealed by a printed circuit board which also provides electrical connection to the enclosed electronic circuitry by means of connectors mounted to its inside and outside surface. The symbology may include slope symbology.