Physical resource block indexing for coexistence of narrow band, carrier aggregation, and wide band user equipment in new radio
Methods, systems, and storage media are described for physical resource block indexing to provide coexistence for narrow band, carrier aggregation, and wide band user equipment in new radio. Other embodiments may be described and/or claimed.
1. A processor of a base station configured to perform operations comprising:
determining a physical resource block (PRB) indexing for a system bandwidth (BW) of a new radio (NR) carrier for each of a plurality of user equipments (UEs), wherein a PRB index for an active bandwidth part specific to each UE of the plurality of UEs is defined for each respective UE, wherein the active bandwidth part is smaller than the system BW; and
transmitting one or more signals to each of the plurality of UEs to inform each respective UE of the plurality of UEs indicating that the PRB indexing is for the active bandwidth part for the respective UE.
2. The processor of claim 1 , wherein the PRB index for each respective UE is numerically indexed starting at zero.
3. The processor of claim 1 , wherein the one or more signals indicate a starting point for the PRB index for the respective UE.
4. The processor of claim 1 , wherein the one or more signals indicate a number of PRBs associated with the PRB indexing for each respective UE.
5. The processor of claim 1 , wherein the one or more signals indicate a resource block group (RBG) size for resource allocation associated with the respective UE.
6. The processor of claim 1 , wherein the one or more signals comprise downlink control information (DCI) indicating a type of PRB index to be utilized by the respective UE.
7. An apparatus of a base station configured to operate in a new radio (NR) network, comprising:
radio frequency (RF) circuitry configured to communicate within the NR network; and
one or more baseband processors communicatively coupled to the RF circuitry and configured to perform operations, comprising:
determining a physical resource block (PRB) indexing for a system bandwidth (BW) of a new radio (NR) carrier for each of a plurality of user equipments (UEs), wherein a PRB index for an active bandwidth part specific to each UE of the plurality of UEs is defined for each respective UE; and
transmitting one or more signals to each of the plurality of UEs to inform each respective UE of the plurality of UEs indicating that the PRB indexing is for the active bandwidth part for the respective UE.
8. The apparatus of claim 7 , wherein each of the plurality of UEs is one of a narrowband (NB) UE, a carrier aggregation (CA) UE, and a wideband (WB) UE.
9. The apparatus of claim 7 , wherein the PRB index for each respective UE is based on a 15-kilohertz (kHZ) subcarrier spacing for sub-6 gigahertz (GHz) carrier frequencies.
10. The base station of claim 7 , wherein the one or more signals indicate a starting point for the PRB index for the respective UE.
11. The base station of claim 7 , wherein the one or more signals indicate a number of PRBs associated with the PRB index for the respective UE.
12. The base station of claim 7 , wherein the one or more signals indicate a resource block group (RBG) size for resource allocation associated with the respective UE.
13. The base station of claim 7 , wherein the one or more signals comprise downlink control information (DCI) indicating a type of PRB index to be utilized by the respective UE.