UPLINK TIMING ADVANCE DETERMINING METHOD AND APPARATUS, AND COMMON TIMING-RELATED INFORMATION BROADCASTING METHOD AND APPARATUS

摘要

The present application relates to an uplink timing advance determining method, applicable to a terminal. The method comprises: receiving common timing-related information broadcast by a cell; and determining uplink timing advance according to the common timing-related information. According to the present application, a cell does not need to indicate all uplink timing advance, but only needs to indicate common timing-related information, the common timing-related information is not greater than the uplink timing advance, and thus, it is beneficial to reducing the amount of information to be indicated. In addition, by broadcasting valid time-related information of common timing-related information, when determining according to the valid time-related information that the received common timing-related information is valid, the terminal does not need to acquire system information carrying the common timing-related information; thus, even if the common time offset is changed, the cell does not need to continuously notify the terminal of the changed common time offset, thereby reducing the signaling overhead and the power consumption of the terminal.