A wireless communication network clock synchronization method, device and network element

Abstract

The invention discloses a wireless communication network clock synchronization method, device and network element. The method includes: receiving a clock signal containing a timing quality mark sent by an upstream network element; detecting the clock quality of the upstream network element according to the clock signal containing a timing quality mark; when the clock quality of the upstream network element When the preset requirements are met, the clock of the local network element is synchronized with the clock of the upstream network element. The present invention adds a timing quality mark to the clock signal of the wireless communication network, uses the timing quality mark to judge the quality level of the clock of the upstream network element, only when the clock quality level of the upstream network element meets the set requirements, the timing quality mark is used The clocks of the upstream network elements are synchronized, so that the clocks can be accurately synchronized, avoiding the situation that the local high-level clock is synchronized by the external low-level clock, and the switching of the reference clock source can be quickly realized.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a clock synchronization method, device and network element of a wireless communication network. Background technique [0002] Network synchronization and timing are important technologies in wireless communication systems. To ensure network quality, the system clock quality must meet specified standards. Since the wireless communication network usually relies on the transmission network to achieve timing transmission, in the case of traditional TDM transmission networking, the base station can recover the synchronous clock signal from the TDM E1 / T1 link (the timing can also be extracted from the STM-N line clock) , to meet the requirements of the reference clock of the base station, and constitute the service channel and synchronous timing link of the wireless communication network; as the transmission part of the wireless network develops from TDM to a pac...

AI Technical Summary

Problems solved by technology

[0012] In order to solve the inaccurate clock synchronization mechanism of the wireless communication network in the prior art and avoid the phenomenon that the local high-level clock is synchronized by the external low-level clock, the present invention proposes a wireless communication network clock synchronization method, device and system

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