Radio control channel resource set design

1. A base station, comprising:

one or more computer-readable media; and

one or more processors, configured execute instructions stored on the one or more computer- readable media, to cause the processor to:

transmit, via a physical broadcast channel (PBCH) transmission, an indicator that indicates an entry of a table comprising a first set of parameters of a control resource set (CORESET) corresponding to a physical downlink control channel (PDCCH), the first set of parameters including a CORESET size in frequency, a frequency position of the CORESET, and a number of orthogonal frequency division multiplexing (OFDM) symbols of the CORESET; and

transmit, in a transmission of the PDCCH and based on the first set of parameters, scheduling information of a physical downlink shared channel (PDSCH) including remaining system information (RMSI),

wherein the CORESET is comprised of control channel element (CCEs),

wherein the indicator is configured to cause a user equipment (UE) to identify the entry of the table comprising a plurality of entries, each entry, of the plurality of entries of the table, comprising a different first set of CORESET parameters corresponding to the PDCCH, the first set of each parameters including CORES ET size in frequency, frequency position of the CORESET, and number of OFDM symbols of the CORESET.

2. The base station of claim 1 , wherein the first set of parameters comprises:

a number of resource blocks; and

a frequency offset between a synchronization signal block and the CORESET.

3. The base station of claim 1 , wherein the first set of parameters comprises:

a slot offset; and

periodicity of the CORESET.

4. The base station of claim 1 , wherein the PBCH comprises:

an indication of a second set of parameters of a common search space for the CORESET.

5. The base station of claim 4 , wherein the second set of parameters comprises information for monitoring of the PDCCH in the CORESET.

6. The base station of claim 1 , wherein the PBCH further includes subcarrier spacing for the RMSI.

7. The base station of claim 1 , wherein the RMSI comprises information of resources for receiving PDCCHs related to at least one of:

other system information;

paging; or

random access.

8. The base station of claim 1 , wherein:

a CCE is comprised of 6 resource element groups (REGs) each containing 12 consecutive subcarriers,

the CORESET includes a CCE-to-REG mapping, the CCE-to-REG mapping being interleaved, and

an interleaver for the CCE-to-REG mapping being defined by:

writing inputs into an interleaving matrix in a first manner, the interleaving matrix including a plurality of columns,

re-arranging the plurality of columns of the interleaving matrix, the re-arranging being based on a cell ID of the base station, and

reading outputs in a second manner.

9. The base station of claim 1 , wherein the base station indicates a second set of parameters, relating to timing information, to enable the UE to monitor a subsequent control channel transmission for non-essential CORESET information.

10. A method, comprising:

transmitting, via a physical broadcast channel (PBCH) transmission, an indicator that indicates an entry of a table comprising a first set of parameters of a control resource set (CORESET) corresponding to a physical downlink control channel (PDCCH), the first set of parameters including a CORESET size in frequency, a frequency position of the CORESET, and a number of orthogonal frequency division multiplexing (OFDM) symbols of the CORESET; and

transmitting, in a transmission of the PDCCH and based on the first set of parameters, scheduling information of a physical downlink shared channel (PDSCH) including remaining system information (RMSI),

wherein the CORESET is comprised of control channel element (CCEs),

wherein the indicator is configured to cause a user equipment (UE) to identify the entry of the table comprising a plurality of entries, each entry, of the plurality of entries of the table, comprising a different first set of CORESET parameters corresponding to the PDCCH, the first set of each parameters including CORESET size in frequency, frequency position of the CORESET, and number of OFDM symbols of the CORESET.

11. The method of claim 10 , wherein the first set of parameters comprises:

a number of resource blocks; and

a frequency offset between a synchronization signal block and the CORESET.

12. The method of claim 10 , wherein the first set of parameters comprises:

a slot offset; and

periodicity of the CORESET.

13. The method of claim 10 , wherein the PBCH comprises:

an indication of a second set of parameters of a common search space for the CORESET.

14. The method of claim 13 , wherein the second set of parameters comprises information for monitoring of the PDCCH in the CORESET.

15. The method of claim 10 , wherein the PBCH further includes subcarrier spacing for the RMSI.

16. The method of claim 10 , wherein the RMSI comprises information of resources for receiving PDCCHs related to at least one of:

other system information;

paging; or

random access.

17. The method of claim 10 , wherein:

a CCE is comprised of 6 resource element groups (REGs) each containing 12 consecutive subcarriers,

the CORESET includes a CCE-to-REG mapping, the CCE-to-REG mapping being interleaved, and

an interleaver for the CCE-to-REG mapping being defined by:

writing inputs into an interleaving matrix in a first manner, the interleaving matrix including a plurality of columns,

re-arranging the plurality of columns of the interleaving matrix, the re-arranging being based on a cell ID of the base station, and

reading outputs in a second manner.

18. A processor of a base station, the processor configured to perform instructions comprising:

transmit, via a physical broadcast channel (PBCH) transmission, an indicator that indicates of an entry of a table comprising a first set of parameters of a control resource set (CORESET) corresponding to a physical downlink control channel (PDCCH), the first set of parameters including a CORESET size in frequency, a frequency position of the CORESET, and a number of orthogonal frequency division multiplexing (OFDM) symbols of the CORESET; and

transmit, in a transmission of the PDCCH and based on the first set of parameters, scheduling information of a physical downlink shared channel (PDSCH) including remaining system information (RMSI),

wherein the CORESET is comprised of control channel element (CCEs),

wherein the indicator is configured to cause a user equipment (UE) to identify the entry of the table comprising a plurality of entries, each entry, of the plurality of entries of the table, comprising a different first set of CORESET parameters corresponding to the PDCCH, the first set of each parameters including CORESET size in frequency, frequency position of the CORESET, and number of OFDM symbols of the CORESET.

19. The processor of claim 18 , wherein the first set of parameters comprises:

a number of resource blocks; and

a frequency offset between a synchronization signal block and the CORESET.

20. The processor of claim 18 , wherein the first set of parameters comprises:

a slot offset; and

periodicity of the CORESET.

21. The processor of claim 18 , wherein the PBCH comprises:

an indication of a second set of parameters of a common search space for the CORESET.

22. The processor of claim 21 , wherein the second set of parameters comprises information for monitoring of the PDCCH in the CORESET.

23. The processor of claim 18 , wherein the PBCH further includes subcarrier spacing for the RMSI.

24. The processor of claim 18 , wherein the RMSI comprises information of resources for receiving PDCCHs related to at least one of:

other system information;

paging; or random access.

25. The processor of claim 18 , wherein:

a CCE is comprised of 6 resource element groups (REGs) each containing 12 consecutive subcarriers,

the CORESET includes a CCE-to-REG mapping, the CCE-to-REG mapping being interleaved, and

an interleaver for the CCE-to-REG mapping being defined by:

writing inputs into an interleaving matrix in a first manner, the interleaving matrix including a plurality of columns,

re-arranging the plurality of columns of the interleaving matrix, the re-arranging being based on a cell ID of the base station, and

reading outputs in a second manner.

26. A baseband processor of a User Equipment (UE), comprising:

one or more processors configured to:

receive, via a physical broadcast channel (PBCH) transmission, an indicator that indicates an entry of a table comprising a first set of parameters of a control resource set (CORESET) corresponding to a physical downlink control channel (PDCCH), the first set of parameters including a CORESET size in frequency, a frequency position of the CORESET, and a number of orthogonal frequency division multiplexing (OFDM) symbols of the CORESET; and

receive, in a transmission of the PDCCH and based on the first set of parameters, scheduling information of a physical downlink shared channel (PDSCH) including remaining system information (RMSI),

wherein the CORESET is comprised of control channel element (CCEs),

wherein the indicator is configured to cause the UE to identify the entry of the table comprising a plurality of entries, each entry, of the plurality of entries of the table, comprising a different first set of CORESET parameters corresponding to the PDCCH, the first set of each parameters including CORESET size in frequency, frequency position of the CORESET, and number of OFDM symbols of the CORESET.

27. The baseband processor of claim 26 , wherein the first set of parameters comprises:

a number of resource blocks; and

a frequency offset between a synchronization signal block and the CORESET.

28. The baseband processor of claim 26 , wherein the first set of parameters comprises:

a slot offset; and

periodicity of the CORESET.

29. The baseband processor of claim 26 , wherein the PBCH comprises:

an indication of a second set of parameters of a common search space for the CORESET.

30. The baseband processor of claim 29 , wherein the second set of parameters comprises information for monitoring of the PDCCH in the CORESET.

31. The baseband processor of claim 26 , wherein the PBCH further includes subcarrier spacing for the RMSI.

32. The baseband processor of claim 26 , wherein the RMSI comprises information of resources for receiving PDCCHs related to at least one of:

other system information;

paging; or

random access.

33. The baseband processor of claim 26 , wherein:

a CCE is comprised of 6 resource element groups (REGs) each containing 12 consecutive subcarriers,

the CORESET includes a CCE-to-REG mapping, the CCE-to-REG mapping being interleaved, and

an interleaver for the CCE-to-REG mapping being defined by:

writing inputs into an interleaving matrix in a first manner, the interleaving matrix including a plurality of columns,

re-arranging the plurality of columns of the interleaving matrix, the re-arranging being based on a cell ID of the base station, and

reading outputs in a second manner.

34. A User Equipment (UE), comprising:

one or more computer-readable media; and

one or more processors, configured execute instructions stored on the one or more computer- readable media, to cause the processor to:

receive, via a physical broadcast channel (PBCH) transmission, an indicator that indicates an entry of a table comprising a first set of parameters of a control resource set (CORESET) corresponding to a physical downlink control channel (PDCCH), the first set of parameters including a CORESET size in frequency, a frequency position of the CORESET, and a number of orthogonal frequency division multiplexing (OFDM) symbols of the CORESET; and

receive, in a transmission of the PDCCH and based on the first set of parameters, scheduling information of a physical downlink shared channel (PDSCH) including remaining system information (RMSI),

wherein the CORESET is comprised of control channel element (CCEs),

wherein the indicator is configured to cause the UE to identify the entry of the table comprising a plurality of entries, each entry, of the plurality of entries of the table, comprising a different first set of CORESET parameters corresponding to the PDCCH, the first set of each parameters including CORESET size in frequency, frequency position of the CORESET, and number of OFDM symbols of the CORESET.

35. The UE of claim 34 , wherein the first set of parameters comprises:

a number of resource blocks; and

a frequency offset between a synchronization signal block and the CORESET.

36. The UE of claim 34 , wherein the first set of parameters comprises:

a slot offset; and

periodicity of the CORESET.

37. The UE of claim 34 , wherein the PBCH comprises:

an indication of a second set of parameters of a common search space for the CORESET.

38. The UE of claim 34 , wherein:

a CCE is comprised of 6 resource element groups (REGs) each containing 12 consecutive subcarriers,

the CORESET includes a CCE-to-REG mapping, the CCE-to-REG mapping being interleaved, and

an interleaver for the CCE-to-REG mapping being defined by:

writing inputs into an interleaving matrix in a first manner, the interleaving matrix including a plurality of columns,

re-arranging the plurality of columns of the interleaving matrix, the re-arranging being based on a cell ID of the base station, and

reading outputs in a second manner.

39. A method performed by a User Equipment (UE), comprising:

receiving, via a physical broadcast channel (PBCH) transmission, an indicator that indicates an entry of a table comprising a first set of parameters of a control resource set (CORESET) corresponding to a physical downlink control channel (PDCCH), the first set of parameters including a CORESET size in frequency, a frequency position of the CORESET, and a number of orthogonal frequency division multiplexing (OFDM) symbols of the CORESET; and

receiving, in a transmission of the PDCCH and based on the first set of parameters, scheduling information of a physical downlink shared channel (PDSCH) including remaining system information (RMSI),

wherein the CORESET is comprised of control channel element (CCEs),

wherein the indicator is configured to cause the UE to identify the entry of the table comprising a plurality of entries, each entry, of the plurality of entries of the table, comprising a different first set of CORESET parameters corresponding to the PDCCH, the first set of each parameters including CORESET size in frequency, frequency position of the CORESET, and number of OFDM symbols of the CORES ET.

40. The method of claim 39 , wherein the first set of parameters comprises:

a number of resource blocks; and

a frequency offset between a synchronization signal block and the CORESET.

41. The method of claim 39 , wherein the first set of parameters comprises:

a slot offset; and

periodicity of the CORESET.

42. The method of claim 39 , wherein the PBCH comprises:

an indication of a second set of parameters of a common search space for the CORESET.

43. The method of claim 39 , wherein:

a CCE is comprised of 6 resource element groups (REGs) each containing 12 consecutive subcarriers,

the CORESET includes a CCE-to-REG mapping, the CCE-to-REG mapping being interleaved, and

an interleaver for the CCE-to-REG mapping being defined by:

writing inputs into an interleaving matrix in a first manner, the interleaving matrix including a plurality of columns,

re-arranging the plurality of columns of the interleaving matrix, the re-arranging being based on a cell ID of the base station, and

reading outputs in a second manner.