Configuration schemes for secondary cell, bandwidth part and physical resource block indexing
The disclosure describes configuration schemes for secondary cell (SCell), bandwidth part (BWP) and physical resource block (PRB) indexing. An apparatus of user equipment (UE) for BWP activation and deactivation operation is disclosed. The apparatus includes baseband circuitry that includes a radio frequency (RF) interface, and one or more processors. The one or more processors are to receive radio resource control (RRC) data via the RF interface, configure a timer for a BWP according to the RRC data, and trigger the timer for the BWP in response to detection of an event associated with an access node after the BWP has been activated.
1. A radio access network (RAN) node comprising:
one or more processors configured to generate, for a secondary cell (SCell) configuration for an SCell carrier without a synchronization signal block (SSB) to be allocated to a user equipment (UE), data that contains information regarding an offset between a reference point and a lowest subcarrier of a reference physical resource block (PRB), wherein the reference PRB is a lowest PRB of a carrier from a perspective of the RAN node that allocates the SCell carrier to the UE; and
an RF interface configured to receive the data from the one or more processors.
2. The RAN node of claim 1 , wherein the reference point is a lowest PRB of the SCell carrier from a perspective of the UE.
3. The RAN node of claim 1 , wherein the reference point is a PRB containing a center frequency of the SCell carrier from the perspective of the RAN node.
4. The RAN node of claim 1 , wherein the reference point is a PRB containing a center frequency of the SCell carrier from a perspective of the UE.
5. The RAN node of claim 1 , wherein the reference point is a PRB containing a direct current (DC) subcarrier.
6. The RAN node of claim 1 , wherein the reference point is a position of a virtual SSB which is not physically present in the SCell carrier from a perspective of the UE.
7. The RAN node of claim 1 , wherein the offset defines a common PRB indexing that is common to multiple UEs sharing a wideband component carrier (CC).
8. A method of operating radio access network (RAN) node for communication with a user equipment (UE), comprising:
generating, for a secondary cell (SCell) configuration for an SCell carrier without a synchronization signal block (SSB) to be allocated to the UE, data that contains information regarding an offset between a reference point and a lowest subcarrier of a reference physical resource block (PRB), wherein the reference PRB is a lowest PRB of a carrier from a perspective of the RAN node that allocates the SCell carrier to the UE; and
transmitting the data to the UE.
9. The method of claim 8 , wherein the reference point is a lowest PRB of the SCell carrier from a perspective of the UE.
10. The method of claim 8 , wherein the reference point is a PRB containing a center frequency of the SCell carrier from the perspective of the RAN node.
11. The method of claim 8 , wherein the reference point is a PRB containing a center frequency of the SCell carrier from a perspective of the UE.
12. The method of claim 8 , wherein the reference point is a PRB containing a direct current (DC) subcarrier.
13. The method of claim 8 , wherein the reference point is a position of a virtual SSB which is not physically present in the SCell carrier from a perspective of the UE.
14. The method of claim 8 , wherein the offset defines a common PRB indexing that is common to multiple UEs sharing a wideband component carrier (CC).
15. A non-transitory computer readable medium having machine executable instructions that, when executed, cause one or more processors of a base station to perform operations, the operations comprising:
generating, for a secondary cell (SCell) configuration for an SCell carrier without a synchronization signal block (SSB) to be allocated to the UE, data that contains information regarding an offset between a reference point and a lowest subcarrier of a reference physical resource block (PRB), wherein the reference PRB is a lowest PRB of a carrier from a perspective of the RAN node that allocates the SCell carrier to the UE; and
transmitting the data to the UE.
16. The non-transitory computer readable medium of claim 15 , wherein the reference point is a lowest PRB of the SCell carrier from a perspective of the UE.
17. The non-transitory computer readable medium of claim 15 , wherein the reference point is a PRB containing a center frequency of the SCell carrier from the perspective of the RAN node.
18. The non-transitory computer readable medium of claim 15 , wherein the reference point is a PRB containing a center frequency of the SCell carrier from a perspective of the UE.
19. The non-transitory computer readable medium of claim 15 , wherein the reference point is a PRB containing a direct current (DC) subcarrier.
20. The non-transitory computer readable medium of claim 15 , wherein the reference point is a position of a virtual SSB which is not physically present in the SCell carrier from a perspective of the UE.