Measurement gap timing for new radio dual connectivity

1. A processor of a user equipment (UE) configured to perform operations comprising:

establishing a network connection, the network connection including a new radio (NR)-NR dual connectivity band combination wherein a primary cell (PCell) of a primary cell group (PCG) and a primary secondary cell (PSCell) of a secondary cell group (SCG) both operate on frequency range 1 (FR1) and wherein at least one cell of either the PCG or the SCG operates on frequency range 2 (FR2);

receiving a measurement gap timing advance parameter;

selecting one subframe from multiple serving cell subframes; and

determining a starting point for a configured per-frequency range (FR) measurement gap based on the measurement gap timing advance parameter and the selected subframe.

2. The processor of claim 1 , wherein the PCG provides one or more serving component carriers operating on FR1 including a primary component carrier (PCC) and wherein the SCG provides one or more serving component carriers operating on FR1 including a primary secondary component carrier (PSCC) and at least one SCC operating on FR2.

3. The processor of claim 1 , wherein the PCG provides one or more serving component carriers operating on FR1 including a primary component carrier (PCC) and at least one secondary component carriers (SCC) operating on FR2 and wherein the SCG provides one or more serving component carriers operating on FR1 including a primary secondary component carrier (PSCC).

4. The processor of claim 3 , wherein the configured per-FR measurement gap is for FR1,

wherein the starting point is an end of a latest FR1 serving cell subframe occurring immediately before the configured per-FR measurement gap, and

wherein the multiple serving cell subframes include FR1 serving cell subframes from both the PCG and the SCG.

5. The processor of claim 3 , wherein the configured per-FR measurement gap is for FR1,

wherein the starting point is an end of a latest PCG FR1 serving cell subframe occurring immediately before the configured per-FR measurement gap, and

wherein the multiple serving cell subframes include FR1 serving cell subframes from the PCG.

6. The processor of claim 3 , wherein the configured per-FR measurement gap is for FR2,

wherein the starting point is an end of a latest PCG FR2 serving cell subframe occurring immediately before the configured per-FR measurement gap, and

wherein the multiple serving cell subframes only include FR2 serving cell subframes from the PCG.

7. The processor of claim 1 , wherein the PCG provides one or more serving component carriers operating on FR1 including a primary component carrier (PCC) and at least one secondary component carrier (SCC) operating on FR2 and wherein the SCG provides one or more serving component carriers operating on FR1 including a primary secondary component carrier (PSCC) and at least one SCC operating on FR2.

8. The processor of claim 7 , wherein the configured per-FR measurement gap is for FR1,

wherein the starting point is an end of a latest FR1 serving cell subframe occurring immediately before the configured per-FR measurement gap, and

wherein the multiple serving cell subframes include FR1 serving cell subframes from both the PCG and the SCG.

9. The processor of claim 7 , wherein the configured per-FR measurement gap is for FR2,

wherein the starting point is an end of a latest FR2 serving cell subframe occurring immediately before the configured per-FR measurement gap, and

wherein the multiple serving cell subframes include FR2 serving cell subframes from both the PCG and the SCG.

10. The processor of claim 7 , wherein the configured per-FR measurement gap is for FR1,

wherein the starting point is an end of a latest PCG FR1 serving cell subframe occurring immediately before the configured per-FR measurement gap, and

wherein the multiple serving cell subframes include FR1 serving cell subframes from the PCG.

11. The processor of claim 7 , wherein the configured per-FR measurement gap is for FR2,

wherein the starting point is an end of a latest PCG FR2 serving cell subframe occurring immediately before the configured per-FR measurement gap, and

wherein the multiple serving cell subframes only include FR2 serving cell subframes from the PCG.

12. The processor of claim 7 , wherein the configured per-FR measurement gap is for FR2,

wherein the starting point is a end of a latest SCG FR2 serving cell subframe occurring immediately before the configured per-FR measurement gap, and

wherein the multiple serving cell subframes only include FR2 serving cell subframes from the SCG.

13. A user equipment (UE), comprising:

a transceiver configured to communicate with a fifth generation (5G) network; and

a processor communicatively coupled to the transceiver and configured to perform operations comprising:

establishing a network connection, the network connection including a new radio (NR)-NR dual connectivity band combination wherein a primary cell (PCell) of a primary cell group (PCG) and a primary secondary cell (PSCell) of a secondary cell group (SCG) both operate on frequency range 1 (FR1) and wherein at least one cell of either the PCG or the SCG operates on frequency range 2 (FR2);

receiving a measurement gap timing advance parameter;

selecting one subframe from multiple serving cell subframes; and

determining a starting point for a configured per-frequency range (FR) measurement gap based on the measurement gap timing advance parameter and the selected subframe.

14. The UL of claim 13 , wherein the PCG provides one or more serving component carriers operating on FR1 including a primary component carrier (PCC) and wherein the SCG provides one or more serving component carriers operating on FR1 including a primary secondary component carrier (PSCC) and at least one SCC operating on FR2.

15. The UE of claim 13 , wherein the PCG provides one or more serving component carriers operation on FR1 including a primary component carrier (PCC) and at least one secondary component carriers (SCC) operating on FR2 and wherein the SCG provides one or more serving component carriers operating on FR1 including a primary secondary component carrier (PSCC).

16. The UE of claim 13 , wherein the PCG provides one or inure serving component carriers operating on FR1 including a primary component carrier (PCC) and at least one secondary component carrier (SCC) operating on FR2 and wherein the SCG provides one or more serving component carriers operating on FR1 including a primary secondary component carrier (PSCC) and at least one SCC operating on FR2.

17. A processor of a user equipment (UE) configured to perform operations comprising:

establishing a network connection, the network connection including a new radio (NR)-NR dual connectivity band combination wherein a primary cell (PCell) of a primary cell group (PCG) and a primary secondary cell (PSCell) of a secondary cell group (SCG) both operate on frequency range 1 (FR1) and wherein at least one cell of either the PCG or the SCG operates on frequency range 2 (FR2);

receiving an indication from the network of a serving cell or cell group that is to be used as a reference for determining a per-FR measurement gap starting point; and

selecting the per-FR starting point.

18. The processor of claim 17 , wherein the PCG provides one or more serving component carriers operating on FR1 including a primary component carrier (PCC), wherein the SCG provides one or more serving component carriers operating on FR1 including a primary secondary component carrier (PSCC) and at least one SCC operating on FR2, and wherein the indication is received via one of i) radio resource control (RRC) signaling, ii) a combination RRC signaling and downlink control information (DCI) or HD a medium access control (MAC) control element (CE) in a SCell activation command.

19. The processor of claim 17 , wherein the PCG provides one or more serving component carriers operation on FR1 including a primary component carrier (PCC) and at least one secondary component carriers (SCC) operating on FR2, wherein the SCG provides one or more serving component carriers operating on FR1 including a primary secondary component carrier (PSCC), wherein the indication is received via one of i) radio resource control (RRC) signaling, ii) a combination RRC signaling and downlink control information (DCI) or iii) a medium access control (MAC) control element (CE) in a SCell activation command.

20. The processor of claim 17 , wherein the PCG provides one or more serving component carriers operating on FR1 including a primary component carrier (PCC) and at least one secondary component carrier (SCC) operating on FR2, wherein the SCG provides one or more serving component carriers operating on FR1 including a primary secondary component carrier (PSCC) and at least one SCC operating on FR2, and wherein the indication is received via one of i) radio resource control (RRC) signaling, ii) a combination RRC signaling and downlink control information (DCI) or iii) a medium access control (MAC) control element (CE) in a SCell activation command.