Clock synchronization processing method, device and communication system

Abstract

The invention provides a clock synchronization processing method, a device and a communication system. The processing method comprises the steps as follows: acquiring the system day time information; generating the air interface day time information corresponding to a specific system frame according to the system day time information and the specific system frame information; wherein the air interface day time information corresponding to the specific system frame is used for delivering the system day time information between a long-term evolution return base station and long-term evolution return user equipment; and sending the air interface information containing the air interface day time information corresponding to the specific system frame to the long-term evolution return user equipment. The invention provides a corresponding device and a communication system comprising device. On the basis of the technical scheme provided by the invention, the system time information with high precision can be provided for a remote base station by using the LTE (Long Term Evolution) as the return of the base station, thereby realizing clock synchronization.

Description

technical field [0001] Embodiments of the present invention relate to time synchronization technologies, and in particular, to a clock synchronization processing method, device, and communication system. Background technique [0002] The long term evolution technology (Long Term Evolution, hereinafter referred to as: LTE) architecture integrates a radio network controller (Radio Network Controller, hereinafter referred to as: RNC) and a base station NodeB in 3GPP R6 into one, that is, an evolved base station eNodeB. The eNodeB provides the Evolved Universal Terrestrial Radio Access (hereinafter referred to as: E-UTRA) radio link control (Radio Link Control, hereinafter referred to as: RLC) layer / radio access control (Media Access Control, Functions of physical layer protocols such as MAC) layer / Packet Data Convergence Protocol (Packet Data Convergence Protocol, PDCP) layer and functions of Radio Resource Control protocol layer (Radio Resource Control, RRC). The whole system...

AI Technical Summary

Problems solved by technology

[0018] In the technical solution of clock synchronization mentioned above, when the time stamp is transmitted on the air interface, due to the uncertainty of the wireless baseband processing and the wireless link environment, it may cause a large delay jitter and affect the synchronization accuracy.

[0019] Therefore, the existing technology has the defect of low clock synchronization accuracy in the application of using the LTE base station as the backhaul

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