Communication base station time synchronization system

• Main Authors: GONG PENG, JIAN HEBING, YANG CAIFANG, REN JUNWEI, ZENG YINGCHUN, DENG YIFENG, ZHANG ZHONGZHENG, WEN XUEBIN, ZHU MIN
• Format: Patent
• Language: Chinese; English
• Published: 24.02.2023
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; MULTIPLEX COMMUNICATION; WIRELESS COMMUNICATIONS NETWORKS

The invention discloses a communication base station time synchronization system which comprises a clock reference source, a SyncE clock synchronization module, a time synchronization module, a field bus, a first bus control module and a plurality of auxiliary modules, and the auxiliary modules are used for being connected with BBU devices in a one-to-one correspondence mode. A clock reference source in a communication base station is accessed through a time synchronization module, first standard time serving as a time reference is generated, and then local time of each BBU device is synchronized to the first standard time through time division multiplexing of a field bus; the method comprises the following steps: accessing a clock reference source in a communication base station through a SyncE clock synchronization module, generating a first frequency serving as a frequency reference, recovering the first frequency through an auxiliary module through time division multiplexing of a field bus, and sending th