Method and apparatus for receiving a synchronization signal
A method for a terminal to receive a synchronization signal is disclosed in the present invention. The method receives a message including a synchronization signal block indicator indicating one or more synchronization signal block groups including at least one transmission synchronization signal block among a plurality of synchronization signal block groups grouped by the prescribed number of candidate synchronization block positions of a synchronization signal block including a primary synchronization signal, a secondary synchronization signal, and a physical broadcast channel signal, and can receive the at least one transmission synchronization signal block based on the message.
1. A method of receiving a synchronization signal block (SSB), which is received by a user equipment (UE) configured to operate on a frequency band above 6 GHz in a wireless communication system, the method comprising:
receiving (i) SSB group information regarding one or more SSB groups including at least one transmission SSB, among a plurality of SSB groups, and (ii) first SSB information regarding the at least one transmission SSB in the one or more SSB groups;
receiving second SSB information regarding a SSB position at which the at least one transmission SSB is transmitted among candidate SSB positions for a plurality of SSBs,
wherein the at least one transmission SSB includes a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH) signal,
wherein a number of the candidate SSB positions informed by the second SSB information is equal to a value obtained by multiplying a number of bits used for the SSB group information and a number of bits used for the first SSB information; and
receiving the at least one transmission SSB based on the SSB group information, the first SSB information, and the second SSB information.
2. The method of claim 1 , wherein the SSB group information and the first SSB information are received in a system information block (SIB).
3. The method of claim 1 , wherein the UE assumes that reception occasions on the PBCH, the PSS, and the SSS are in consecutive symbols and form the SSB.
4. The method of claim 1 , wherein the SSB group information is configured in a form of a bitmap having 8 bits.
5. The method of claim 1 , wherein the first SSB information corresponds to information regarding the number of the at least one transmission SSB contained in the one or more SSB groups.
6. The method of claim 1 , wherein the first SSB information indicates a SSB position of the at least one transmission SSB within the one or more SSB groups, and
wherein the first SSB information is configured in a form of a bitmap having 8 bits.
7. The method of claim 1 , wherein based on the at least one transmission SSB being received, a signal other than the at least one transmission SSB is not received in a resource corresponding to the at least one transmission SSB.
8. The method of claim 1 , wherein the second SSB information is configured in a form a bitmap having 64 bits.
9. A user equipment (UE) configured to operate on a frequency band above 6 GHz and to receive a synchronization signal block (SSB) in a wireless communication system, the UE comprising:
an RF module configured to transceive a radio signal with a base station (BS); and
a processor connected with the RF module and configured to
receive (i) SSB group information regarding one or more SSB groups including at least one transmission SSB, among a plurality of SSB groups, and (ii) first SSB information regarding the at least one transmission SSB in the one or more SSB groups,
receive second SSB information regarding a SSB position at which the at least one transmission SSB is transmitted among candidate SSB positions for a plurality of SSBs,
wherein the at least one transmission SSB includes a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH) signal,
wherein a number of the candidate SSB positions informed by the second SSB information is equal to a value obtained by multiplying a number of bits used for the SSB group information and a number of bits used for the first SSB information, and
receive the at least one transmission SSB based on the SSB group information, the first SSB information, and the second SSB information.
10. The UE of claim 9 , wherein the SSB group information and the first SSB information are received in a system information block (SIB).
11. The UE of claim 9 , wherein the UE assumes that reception occasions on the PBCH, the PSS, and the SSS are in consecutive symbols and form the SSB.
12. The UE of claim 9 , wherein the SSB group information is configured in a form of a bitmap having 8 bits.