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1. (WO2011153781) DE-MAPPING METHOD AND DEVICE FOR OPTICAL TRANSPORT UNIT FRAME

Pub. No.:    WO/2011/153781    International Application No.:    PCT/CN2010/078132
Publication Date: Dec 15, 2011 International Filing Date: Oct 26, 2010
IPC: H04B 10/08
Applicants: ZTE CORPORATION
中兴通讯股份有限公司
LIU, Xilin
刘希琳
Inventors: LIU, Xilin
刘希琳
Title: DE-MAPPING METHOD AND DEVICE FOR OPTICAL TRANSPORT UNIT FRAME
Abstract:
A de-mapping method and device for an Optical Transport Unit (OTU) frame are provided by the present invention, the method includes: setting a receiving reference clock and a de-mapping path according to the highest priority of an OTU frame mapping mode of a local equipment (S102); receiving an OTU frame of the opposite equipment by using the receiving reference clock and the de-mapping path (S104); determining a de-mapping priority of the OTU frame according to a clock recovery result of the received OTU frame and a customer service alarm instruction (S106); and de-mapping the OTU frame of the opposite equipment by using the receiving reference clock and the de-mapping path corresponding to the confirmed de-mapping priority of the OTU frame (S108). By the present invention, the de-mapping efficiency and accuracy of an OTU frame in an optical transport network are improved.