Verification of SFN Networking and Analysis of Networking Failure Cases in 700 MHz Frequency Migration Project
The 700 MHz frequency migration work for DTMB has been basically completed,and the available frequency resources for DTMB are scarce.Establishing a single frequency network for DTMB has become the best solution to solve this problem.How to ensure the successful networking and stable operation of a SFN has become an important task for the operation and maintenance of DTMB systems.This article analyzes the actual cases encountered in the acceptance testing of SFN in the 700 MHz frequency migration project,discovers the possible problems that may occur in the actual operation of SFN networking,provides specific methods for troubleshooting SFN networking failures,and summarizes the workflow for eliminating SFN interference,providing reference and guidance for the operation and maintenance of SFN in DTMB.
700MHz Frequency MigrationSFN NetworkingVerification testingManagement and maintenance