Method and apparatus for control resource set configuration for common control

1. A user equipment (UE) for receiving control information in a wireless communication system, the UE comprising:

a transceiver configured to receive a synchronization signal/physical broadcasting channel (SS/PBCH) block of an index i from a base station (BS), wherein the SS/PBCH block comprises a PBCH carrying master information block (MIB); and

a processor configured to:

for the SS/PBCH block of the index i, determine a slot index n 0 as a sum of an offset value and └i*M┘, wherein the offset value is determined based on:

a first value O determined according to an index indicated in the MIB, pdcch-ConfigSIB1, wherein the index configures physical downlink control channel (PDCCH) monitoring occasions; and

a second value μ indicated in the MIB, wherein the second value μ represents a subcarrier spacing configuration,

wherein M is a positive number determined according to the pdcch-ConfigSIB1; and

decode a PDCCH in the slot index n 0 .

2. The UE of claim 1 , wherein:

for a first frequency range, the first value O is one of 0, 2, 5 and 7; and

for a second frequency range, the first value O is one of 0, 2.5, 5 and 7.5.

3. The UE of claim 1 , wherein:

when μ is either 0 or 1, the first value O is one of 0, 2, 5 and 7; and

when μ is either 2 or 3, the first value O is one of 0, 2.5, 5 and 7.5.

4. The UE of claim 1 , wherein

when μ is 0, the offset value is one of 0, 2, 5, 7;

when μ is 1, the offset value is one of 0, 4, 10, 14;

when μ is 2, the offset value is one of 0, 10, 20, 30; and

when μ is 3, the offset value is one of 0, 20, 40, 60.

5. The UE of claim 1 , wherein possible values for M comprises 0.5 and 1.

6. The UE of claim 1 , wherein pdcch-ConfigSIB1 further indicates a first symbol index of the PDCCH.

7. The UE of claim 6 , wherein when the subcarrier spacing values for the SS/PBCH block and the PDCCH are respectively 120 and 60, the first symbol index is determined as 0, 1, 6, 7, respectively when i=4k, 4k+1, 4k+2, 4k+3, where k is an integer.

8. The UE of claim 6 , wherein when the subcarrier spacing values for the SS/PBCH block and the PDCCH are respectively 120 and 120, the first symbol index is determined as 4, 8, 2, 6, respectively when i=4k, 4k+1, 4k+2, 4k+3, where k is an integer.

9. A base station (BS) for transmitting control information in a wireless communication system, the BS comprising:

a processor configured to, for a synchronization signal/physical broadcasting channel (SS/PBCH) block of an index i, configure a slot index n 0 as a sum of an offset value and └i*M┘, wherein SS/PBCH block comprises a PBCH carrying master information block (MIB); wherein the offset value is determined based on:

a first value O determined according to an index indicated in the MIB, pdcch-ConfigSIB1, wherein the index configures physical downlink control channel (PDCCH) monitoring occasions; and

a second value μ indicated in the MIB, wherein the second value μ represents a subcarrier spacing configuration,

wherein M is a positive number determined according to the pdcch-ConfigSIB1; and

a transceiver configured to transmit the SS/PBCH block of the index i, and a PDCCH in the slot index n 0 to a user equipment (UE).

10. The BS of claim 9 , wherein:

for a first frequency range, the first value O is one of 0, 2, 5 and 7; and

for a second frequency range, the first value O is one of 0, 2.5, 5 and 7.5.

11. The BS of claim 9 , wherein:

when μ is either 0 or 1, the first value O is one of 0, 2, 5 and 7; and

when μ is either 2 or 3, the first value O is one of 0, 2.5, 5 and 7.5.

12. The BS of claim 9 , wherein:

when μ is 0, the offset value is one of 0, 2, 5, 7;

when μ is 1, the offset value is one of 0, 4, 10, 14;

when μ is 2, the offset value is one of 0, 10, 20, 30; and

when μ is 3, the offset value is one of 0, 20, 40, 60.

13. The BS of claim 9 , wherein possible values for M comprises 0.5 and 1.

14. The BS of claim 9 , wherein the pdcch-ConfigSIB1 further indicates a first symbol index of the PDCCH.

15. The BS of claim 14 , wherein when the subcarrier spacing values for the SS/PBCH block and the PDCCH are respectively 120 and 60, the first symbol index is determined as 0, 1, 6, 7, respectively when i=4k, 4k+1, 4k+2, 4k+3, where k is an integer.

16. The BS of claim 14 , wherein when the subcarrier spacing values for the SS/PBCH block and the PDCCH are respectively 120 and 120, the first symbol index is determined as 4, 8, 2, 6, respectively when i=4k, 4k+1, 4k+2, 4k+3, where k is an integer.

17. A method for receiving control information in a wireless communication system, the method comprising:

receiving a synchronization signal/physical broadcasting channel (SS/PBCH) block of an index i from a base station (BS), wherein SS/PBCH block comprises a PBCH carrying master information block (MIB); and

for the SS/PBCH block of the index i, determining a slot index n 0 , as a sum of an offset value and └i*M┘, wherein the offset value is determined based on:

a first value O determined according to an index indicated in the MIB, pdcch-ConfigSIB1, wherein the index configures physical downlink control channel (PDCCH) monitoring occasions; and

a second value μ indicated in the MIB, wherein the second value μ represents a subcarrier spacing configuration,

wherein M is a positive number determined according to the pdcch-ConfigSIB1; and

decoding a PDCCH in the slot index n 0 .

18. The method of claim 17 , wherein:

for a first frequency range, the first value O is one of 0, 2, 5 and 7; and

for a second frequency range, the first value O is one of 0, 2.5, 5 and 7.5.

19. The method of claim 17 , wherein:

when μ is either 0 or 1, the first value O is one of 0, 2, 5 and 7; and

when μ is either 2 or 3, and the first value O is one of 0, 2.5, 5 and 7.5.

20. The method of claim 17 , wherein

when μ is 0, the offset value is one of 0, 2, 5, 7;

when μ is 1, the offset value is one of 0, 4, 10, 14;

when μ is 2, the offset value is one of 0, 10, 20, 30; and

when μ is 3, the offset value is one of 0, 20, 40, 60.