Design method and device of synchronization access sequence

The present invention discloses a method and apparatus for designing synchronous access sequence, the method comprising: setting a variable bandwidth orthogonal frequency division multiplexing system of the primary synchronization channel bandwidth is fixed bandwidth; rule system bandwidth secondary synchronization channel system or the resource block occupied bandwidth to throw away the rule, to obtain a bandwidth irregular; provided by the main on the primary synchronization channel bandwidth isochronous channel carrying the irregular sequence of different bandwidth information. The present invention satisfies the requirements of the synchronization system.