The invention discloses an LTE (long term evolution)
synchronization signal detection method in the technical field of communication. The LTE
synchronization signal detection method comprises the following steps of: when a primary
synchronization signal is detected, firstly adding three local primary synchronization sequences, carrying out correlation operation on the addition and a receiving sequence, determining a
peak value position, obtaining a primary synchronization
signal position, determining a sign timing position, and further obtaining a section mark; and when a secondary synchronization
signal is detected, firstly determining a secondary synchronization
signal position, obtaining a duplex mode and a circulation prefix type adopted by a
system, determining a local secondary synchronization signal sequence by utilizing the section mark obtained by detecting the primary synchronization signal, carrying out correlation operation on the local secondary synchronization signal sequence and the receiving sequence, and obtaining a frame timing synchronization and
cell group mark to obtain a
physical layer cell mark. According to the LTE synchronization signal detection method disclosed by the invention, computational load of synchronization detection is reduced by more than 60%, the calculating speed of synchronization detection is accelerated, the
service quality is improved, cells can be quickly searched in handoff, especially in a high-speed mobile environment, and the drop
call rate is reduced.