Patent ID: 8811238
Filing Date: 2014-08-19
Classification: H04W

Abstract:
1. A method for synchronizing network nodes in a time division duplex system, comprising: acquiring, by a network node, cell identity information of other network nodes via a radio interface, and inquiring synchronization status information of the other network nodes from a synchronization information node according to the cell identity information; and implementing, by the network node, a synchronization policy according to a synchronization status of the network node and an inquired synchronization status of the other network nodes, wherein the synchronization status at least comprises: being synchronous or not, and/or a synchronization level; and the synchronization policy comprises: when the network node is asynchronous, the network node is synchronized with a network node having a highest synchronization level amongst the other network nodes, or when the network node is synchronous, the network node is synchronized with a network node which has a highest synchronization level and has a synchronization level at least two levels higher than a synchronization level of the network node amongst the other network nodes.