Method and apparatus for configuring control channel according to BWP or beam switching in wireless communication system
According to one embodiment of the present disclosure, a method and an apparatus for allowing a user equipment (UE) to effectively monitor a control resource set (CORESET) in order to read remaining minimum system information (RMSI) in a wireless communication system are provided. The UE receives a media access control (MAC) control element (CE) indication, performs a random access channel (RACH) procedure, determines a transmission configuration indicator (TCI) state of CORESET 0 on the basis of the most recent of either the MAC CE indication or the RACH procedure, and monitors CORESET 0 on the basis of the determined TCI state.
1. A method performed by a wireless device in a wireless communication system, the method comprising:
receiving a Media Access Control (MAC) Control Element (CE) indication;
performing a Random Access Channel (RACH) procedure;
determining a Transmission Configuration Indicator (TCI) state of Control Resource Set (CORESET) 0based on most recent of the MAC CE indication or the RACH procedure; and
monitoring the CORESET 0based on the determined TCI state,
wherein a monitoring occasion of search space #0 within the CORESET 0is based on an index of a synchronization signal (SS)/physical broadcast channel (PBCH) block corresponding to the determined TCI state.
2. The method of claim 1 , wherein the CORESET 0is a control region monitored to read Remaining Minimum System Information (RMSI).
3. The method of claim 1 , wherein the TCI state is associated with a beam and/or SS/PBCH block.
4. The method of claim 1 , wherein the MAC CE indicates a specific SS/PBCH block.
5. The method of claim 1 , wherein the RACH procedure is a contention-based RACH procedure.
6. The method of claim 5 , wherein the contention-based RACH procedure changes an associated SS/PBCH block.
7. A wireless device in a wireless communication system, comprising:
a memory;
a transceiver; and
a processor connected to the memory and the transceiver, wherein the wireless device is configured to:
receive a Media Access Control (MAC) Control Element (CE) indication;
perform a Random Access Channel (RACH) procedure;
determine a Transmission Configuration Indicator (TCI) state of Control Resource Set (CORESET) 0based on most recent of the MAC CE indication or the RACH procedure; and
monitor the CORESET 0based on the determined TCI state,
wherein a monitoring occasion of search space #0 within the CORESET 0is based on an index of a synchronization signal (SS)/physical broadcast channel (PBCH) block corresponding to the determined TCI state.
8. The wireless device of claim 7 , wherein the CORESET 0is a control region monitored to read Remaining Minimum System Information (RMSI).
9. The wireless device of claim 7 , wherein the TCI state is associated with a beam and/or SS/PBCH block.
10. The wireless device of claim 7 , wherein the MAC CE indicates a specific SS/PBCH block.
11. The wireless device of claim 7 , wherein the RACH procedure is a contention-based RACH procedure.
12. The wireless device of claim 11 , wherein the contention-based RACH procedure changes an associated SS/PBCH block.