Abstract: An encoding/decoding apparatus and method for controlling a channel signal is disclosed, wherein the encoding apparatus may include an encoder to encode an object signal, a channel signal, and rendering information for the channel signal, and a bit stream generator to generate, as a bit stream, the encoded object signal, the encoded channel signal, and the encoded rendering information for the channel signal.

Abstract: Apparatus and methods for managing a detailed status message and alarm message of a global positioning system (GPS) receiver and broadcasting an accurate system time. The GPS receiver receives current time and positional information from a global positioning system satellite, to generate clocks to respective blocks in a base station and to generate self status and alarm message data and system time message data. A base station control processor receives the status and alarm message data and system time message data, and separates the system time therefrom to immediately broadcast the system time to processors of the base station. The base station control processor also periodically checks for a change of the status and alarm message in the system time message data to report the change of the status and alarm message to a base station control device.