Enhanced signaling to support multiple configured grants

1. An apparatus comprising one or more processors configured to perform operations comprising:

selecting a configured grant (CG) index based on a maximum number of configured grants in a bandwidth part (BWP), wherein the maximum number of configured grants comprises 16;

generating at least one of a plurality of uplink (UL) CGs or a plurality of downlink (DL) semi-persistent scheduling (SPS) assignments for a user equipment (UE) in the BWP, the generating comprising:

configuring a first UL CG in an informational element, the informational element comprising: (i) a CG index for the first UL CG in the BWP, and (ii) a hybrid automatic repeat request (HARQ) process identifier (ID) offset for the first UL CG; and

preparing the at least one of the plurality of UL CGs or the plurality of DL SPS assignments for communication to the UE.

2. The apparatus of claim 1 , wherein preparing the at least one of the plurality of UL CGs or the plurality of DL SPS assignments for communication to the UE uses a signaling protocol that comprises one of a radio resource control (RRC) signaling protocol or a medium access control (MAC) signaling protocol.

3. The apparatus of claim 1 , wherein generating the plurality of DL SPS assignments comprises:

configuring a first DL SPS assignment in an informational element, the informational element comprising: (i) an SPS index for the first DL SPS assignment in the BWP, and (ii) a hybrid automatic repeat request (HARM) process identifier (ID) offset for the DL SPS assignment.

4. The apparatus of claim 3 , wherein configuring the first DL SPS assignment in the informational element further comprises:

selecting the SPS index based on a maximum number of SPS assignments in the BWP.

5. The apparatus of claim 1 , the operations further comprising:

configuring a downlink control information (DCI) message to include one of: (i) an SPS index of a first DL SPS assignment or (ii) a CG index of a first UL CG, wherein the SPS index is indicative of activating the first DL SPS assignment and the CG index is indicative of activating the first UL CG.

6. The apparatus of claim 1 , the operations further comprising:

processing a CG confirmation medium access control (MAC) control element (CE) received from the UE, wherein the CG confirmation MAC CE comprises a CG index of a first UL CG; and

determining, based on the CG confirmation MAC CE, that the first UL CG is confirmed by the UE.

7. The apparatus of claim 6 , wherein the CG confirmation MAC CE further comprises at least one of a serving cell identifier (ID) and a BWP ID.

8. The apparatus of claim 7 , wherein the CG confirmation MAC CE comprises five bits for the serving cell ID, two bits for the BWP ID, and four bits for a CG index.

9. The apparatus of claim 6 , the operations further comprising:

determining, based on the CG confirmation MAC CE, that the UE did not receive one of the plurality of UL CG.

10. The apparatus of claim 1 , wherein preparing the at least one of the plurality of UL CGs or the plurality of DL SPS assignments for communication to the UE comprises:

configuring a downlink control information (DCI) message to include one of: (i) four bits for an SPS index of a first DL SPS assignment, wherein the SPS index is indicative of activating the first DL SPS assignment or (ii) four bits for a CG index of a first UL CG, wherein the CG index is indicative of activating the first UL CG.

11. The apparatus of claim 1 , wherein preparing the at least one of the plurality of UL CGs or the plurality of DL SPS assignments for communication to the UE comprises:

configuring a downlink control information (DCI) message to include one of: (i) four bits for an SPS index of a first DL SPS assignment, wherein the SPS index is indicative of activating the first DL SPS assignment or (ii) four bits for a CG index of a first UL CG, wherein the CG index is indicative of activating the first UL CG, the operations comprising:

receiving, from the UE, a CG confirmation medium access control (MAC) control element (CE), wherein the CG confirmation MAC CE comprises a CG index of a first UL CG and at least one of a serving cell identifier (ID) or a BWP ID; and

determining, based on the CG confirmation MAC CE, that the first UL CG is confirmed by the UE.

12. An apparatus comprising one or more processors configured to perform operations comprising:

receiving, from a base station, at least one of: (i) a plurality of uplink (UL) configured grants (CGs), or (ii) a plurality of downlink (DL) semi-persistent scheduling (SPS) assignments for a bandwidth part (BWP), the receiving comprising:

receiving a first UL CG in an informational element, the informational element comprising: (i) a CG index for the first UL CG in the BWP that was selected based at least on a maximum number of configured grants in a BWP, the maximum number of configured grants comprising 16, and (ii) a hybrid automatic repeat request (HARQ) process identifier (ID) offset for the first UL CG; and

performing a communication in the BWP based on the at least one of the plurality of UL CGs or the plurality of DL SPS assignments.

13. The apparatus of claim 12 , wherein receiving the at least one of: (i) the plurality of UL CGs, or (ii) the plurality of DL SPS assignments for the BWP uses a signaling protocol that comprises one of a radio resource control (RRC) signaling protocol or a medium access control (MAC) signaling protocol.

14. The apparatus of claim 12 , wherein receiving the plurality of DL SPS assignments comprises:

receiving a first DL SPS assignment in an informational element, the informational element comprising: (i) an SPS index for the first DL SPS assignment in the BWP, and (ii) a hybrid automatic repeat request (HARQ) process identifier (ID) offset for the DL SPS assignment.

15. The apparatus of claim 12 , the operations further comprising:

receiving a downlink control information (DCI) message that includes one of an SPS index of a first DL SPS assignment or a CG index of a first UL CG, wherein the SPS index is indicative of activating the first DL SPS assignment and the CG index is indicative of activating the first UL CG.

16. The apparatus of claim 12 , the operations further comprising:

transmitting, to the base station, a CG confirmation medium access control (MAC) control element (CE), the CG confirmation MAC CE comprising a CG index of a first UL CG.

17. The apparatus of claim 16 , wherein the CG confirmation MAC CE further comprises at least one of a serving cell identifier (ID) and a BWP ID.

18. The apparatus of claim 12 , the operations comprising:

receiving, from the base station, a downlink control information (DCI) message that includes one of: (i) four bits for an SPS index of a first DL SPS assignment, wherein the SPS index is indicative of activating the first DL SPS assignment or (ii) four bits for a CG index of a first UL CG, wherein the CG index is indicative of activating the first UL CG; and

sending, to the base station, a CG confirmation medium access control (MAC) control element (CE) that indicates whether the first UL CG is confirmed, wherein the CG confirmation MAC CE comprises a CG index of a first UL CG and at least one of a serving cell identifier (ID) or a BWP ID.

19. A method comprising:

selecting a configured grant (CG) index based on a maximum number of configured grants in a bandwidth part (BWP), wherein the maximum number of configured grants comprises 16;

generating at least one of a plurality of uplink (UL) CGs or a plurality of downlink (DL) semi-persistent scheduling (SPS) assignments for a user equipment (UE) in the BWP, the generating comprising:

configuring a first UL CG in an informational element, the informational element comprising: (i) a CG index for the first UL CG in the BWP, and (ii) a hybrid automatic repeat request (HARQ) process identifier (ID) offset for the first UL CG; and

transmitting the at least one of the plurality of UL CGs or the plurality of DL SPS assignments to the UE.

20. The method of claim 19 , wherein generating the plurality of DL SPS assignments comprises:

configuring a first DL SPS assignment in an informational element, the informational element comprising: (i) an SPS index for the first DL SPS assignment in the BWP, and (ii) a hybrid automatic repeat request (HARM) process identifier (ID) offset for the DL SPS assignment.