Synchronization signal/PBCH block transmission method, receiving method, apparatus, device, and medium

A method for receiving a synchronization signal/PBCH block (SSB), comprising:

• receiving an SSB and RMSI corresponding to the SSB on an unlicensed spectrum,
• wherein the SSB and the RMSI corresponding to the SSB are one group of the SSB and the RMSI corresponding to the SSB of four SSBs and RMSI corresponding to the four SSBs respectively transmitted by a base station in two continuous slots;
• and
• wherein each of slots comprises 14 symbols, and four SSBs comprise:
• an SSB 0 and an SSB 3;
• and receiving RMSI corresponding to the SSB on the unlicensed spectrum comprises:
• receiving, according to a first configuration in the SSB 1 and in a 1st symbol of the 0th slot, a PDCCH of RMSI corresponding to the SSB 1;
• or receiving, according to a first configuration in the SSB 3 and in the 1st symbol of the 1st slot, a PDCCH of RMSI corresponding to the SSB 3.

An access network device, comprising:

• a processor, and
• a memory storing an executable instruction,
• wherein the processor is configured to:
• carry out listen before talk (LBT) on an unlicensed spectrum;
• transmit in two continuous slots, in response to determining that the LBT is successful, four synchronization signal/PBCH blocks (SSBs) and remaining minimum system information (RMSI) corresponding to the four SSBs respectively;
• wherein each of the slots comprises 14 symbols, and the four SSBs comprise:
• an SSB 1 and an SSB 3;
• and the processor is further configured to:
• transmit, in a 1st symbol of the 0th slot, a PDCCH of RMSI corresponding to the SSB 1;
• and transmitting, in a 1st symbol of the 1st slot, a PDCCH of RMSI corresponding to the SSB 3.