Signal transmission method and related device

A network device, comprising:

• a memory storing a program;
• and
• at least one processor in communication with the memory, wherein the at least one processor is configured to execute the program to:
• send a first synchronization signal/broadcast channel block SSB to a first terminal device, wherein the first SSB comprises a synchronization signal and a physical broadcast channel PBCH, the synchronization signal and the PBCH use a frequency division multiplexing FDM manner in resource occupation, a quantity of orthogonal frequency division multiplexing OFDM symbols occupied by the synchronization signal is greater than 2, and a quantity of OFDM symbols occupied by the PBCH is greater than 3.

A terminal device, comprising:

• a memory storing a program;
• and
• at least one processor in communication with the memory, wherein the at least one processor is configured to execute the program to:
• receive a first synchronization signal/broadcast channel block SSB sent by a network device, wherein the first SSB comprises a synchronization signal and a physical broadcast channel PBCH, the synchronization signal and the PBCH use a frequency division multiplexing FDM manner in resource occupation, a quantity of orthogonal frequency division multiplexing OFDM symbols occupied by the synchronization signal is greater than 2, and a quantity of OFDM symbols occupied by the PBCH is greater than 3.