Method and apparatus for indicating position of cell-defining synchronization signal block and searching for the same, and base station

A method of searching for a position of a cell-defining synchronization signal block (SSB), the method comprising:

• receiving, by user equipment (UE), an SSB sent by a base station;
• parsing, by the UE, the SSB;
• reading, by the UE and in response to that on-off indication information parsed from a PBCH of the SSB is a first value, SSB position indication information and
• searching for, by the UE, a position of a cell-defining SSB based on the SSB position indication information;
• and
• reading, by the UE and in response to that the on-off indication information parsed from the PBCH of the SSB is a second value, gap indication information and
• searching for, by the UE, the position of the cell-defining SSB by skipping a range of a current frequency band indicated by the gap indication information, wherein the range has a length of a gap value and is centered at a position of the current SSB;
• wherein the on-off indication information is configured to distinguish between a first scenario in which two frequency bands of a first operator are not separated by one frequency band of a second operator and a second scenario in which two frequency bands of the first operator are separated by one frequency band of the second operator.

User equipment, comprising:

• at least one processor;
• and
• a memory for storing executable instructions by the at least one processor;
• wherein the at least one processor is configured to:
• receive an SSB sent by a base station;
• parse the SSB;
• read, in response to that on-off indication information parsed from a PBCH of the SSB is a first value, SSB position indication information and
• search for a position of a cell-defining SSB based on the SSB position indication information;
• and
• read, in response to that the on-off indication information parsed from the PBCH of the SSB is a second value, gap indication information and
• search for the position of the cell-defining SSB by skipping a range of a current frequency band indicated by the gap indication information, wherein the range has a length of a gap value and is centered at a position of the current SSB;
• wherein the on-off indication information is configured to distinguish between a first scenario in which two frequency bands of a first operator are not separated by one frequency band of a second operator and a second scenario in which two frequency bands of the first operator are separated by one frequency band of the second operator.