Method for detecting synchronization signal block, and method, apparatus and system for transmitting synchronization signal block

A terminal device, comprising:

• a receiver configured to receive a first synchronization signal block transmitted by an access network device;
• wherein the first synchronization signal block comprises a primary synchronization signal (PSS), a secondary synchronization signal (SSS) and a synchronization channel;
• and
• a processor configured to determine a location of a time-frequency resource of a second synchronization signal block according to preset information comprised in the first synchronization signal block, wherein the first synchronization signal block and the second synchronization signal block are sent using a same beam.

A network device, comprising:

• a transmitter configured to transmit a first synchronization signal block to a terminal, wherein the first synchronization signal block comprises a physical broadcast channel (PBCH), a primary synchronization signal (PSS), and a secondary synchronization signal (SSS), and
• a processor configured to determine a location of a frequency resource of a second synchronization signal block according to preset information comprised in the PBCH;
• wherein the transmitter is further configured to transmit the second synchronization signal block to the terminal;
• wherein the preset information comprises a frequency domain interval between the first synchronization signal block and the second synchronization signal block;
• wherein the processor is configured to:
• determine a frequency domain location of the second synchronization signal block according to a frequency domain location of the first synchronization signal block and the frequency domain interval between the first synchronization signal block and the second synchronization signal block.