A method for determining a sending time of a synchronization block, said method being performed by a user equipment and comprising: performing descrambling and decoding processing on a PBCH message carried in the synchronization block, and buffering PBCH symbol data of the PBCH message before demodulation; when the descrambling succeeds and the decoding fails, acquiring PBCH symbol data to be merged, which are same as buffered PBCH symbol data, wherein the PBCH symbol data to be merged comprise PBCH symbol data of a beam, which is same as a beam where the synchronization block is located, and PBCH symbol data of an adjacent beam, during a PBCH merge period; and merging the buffered PBCH symbol data and at least the PBCH symbol data to be merged until the PBCH symbol data can be correctly decoded, wherein the merging the buffered PBCH symbol data and at least the PBCH symbol data to be merged comprises: acquiring the PBCH symbol data of the adjacent beam located in the same synchronization block set as the synchronization block; merging the buffered PBCH symbol data and the PBCH symbol data of the adjacent beam located in the same synchronization block set as the synchronization block to obtain merged PBCH symbol data, after acquiring the PBCH symbol data of the adjacent beam in the same synchronization block set; performing decoding processing on the merged PBCH symbol data; and if the decoding of the merged PBCH symbol data fails, merging and decoding the merged PBCH symbol data and at least PBCH symbol data to be merged in a next synchronization block set in the PBCH merge period until the decoding succeeds or there is no PBCH symbol data capable of being merged in the PBCH merge period in a case where the decoding fails, wherein the PBCH symbol data comprises high N bits and a first low data bit of a system frame number and high P bits of timing index bits of the synchronization block, where N is 7 or 8, and P is a natural number not greater than 5. performing descrambling and decoding processing on a PBCH message carried in the synchronization block, and buffering PBCH symbol data of the PBCH message before demodulation; when the descrambling succeeds and the decoding fails, acquiring PBCH symbol data to be merged, which are same as buffered PBCH symbol data, wherein the PBCH symbol data to be merged comprise PBCH symbol data of a beam, which is same as a beam where the synchronization block is located, and PBCH symbol data of an adjacent beam, during a PBCH merge period; and merging the buffered PBCH symbol data and at least the PBCH symbol data to be merged until the PBCH symbol data can be correctly decoded, wherein the merging the buffered PBCH symbol data and at least the PBCH symbol data to be merged comprises: acquiring the PBCH symbol data of the adjacent beam located in the same synchronization block set as the synchronization block; merging the buffered PBCH symbol data and the PBCH symbol data of the adjacent beam located in the same synchronization block set as the synchronization block to obtain merged PBCH symbol data, after acquiring the PBCH symbol data of the adjacent beam in the same synchronization block set; performing decoding processing on the merged PBCH symbol data; and if the decoding of the merged PBCH symbol data fails, merging and decoding the merged PBCH symbol data and at least PBCH symbol data to be merged in a next synchronization block set in the PBCH merge period until the decoding succeeds or there is no PBCH symbol data capable of being merged in the PBCH merge period in a case where the decoding fails, wherein the PBCH symbol data comprises high N bits and a first low data bit of a system frame number and high P bits of timing index bits of the synchronization block, where N is 7 or 8, and P is a natural number not greater than 5. acquiring the PBCH symbol data of the adjacent beam located in the same synchronization block set as the synchronization block; merging the buffered PBCH symbol data and the PBCH symbol data of the adjacent beam located in the same synchronization block set as the synchronization block to obtain merged PBCH symbol data, after acquiring the PBCH symbol data of the adjacent beam in the same synchronization block set; performing decoding processing on the merged PBCH symbol data; and if the decoding of the merged PBCH symbol data fails, merging and decoding the merged PBCH symbol data and at least PBCH symbol data to be merged in a next synchronization block set in the PBCH merge period until the decoding succeeds or there is no PBCH symbol data capable of being merged in the PBCH merge period in a case where the decoding fails, wherein the PBCH symbol data comprises high N bits and a first low data bit of a system frame number and high P bits of timing index bits of the synchronization block, where N is 7 or 8, and P is a natural number not greater than 5.