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1. (WO2018063485) LINK MONITORING REPETITION LEVEL FEEDBACK FOR COMMUNICATION SYSTEMS
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CLAIMS

What is claimed is:

1 . An apparatus for a base station, comprising baseband circuitry having:

a radio frequency (RF) interface; and

one or more processors configured to:

determine repetition level (RL) thresholds;

allocate downlink resources, wherein the downlink resources include a repetition level (RL) and the RL thresholds;

send downlink data to the RF interface for transmission to a user equipment (UE) according to the RL;

receive repetition feedback from the RF interface based on the transmission to the UE; and

update the allocation of downlink resources based on the repetition feedback.

2. The apparatus of claim 1 , wherein the repetition feedback is part of an excess number of repetitions report (ENRR).

3. The apparatus of claim 1 , wherein repetition feedback indicates that a tracked number of repetitions used to correctly decode the downlink data is greater than an RL increment threshold of the RL thresholds.

4. The apparatus of claim 1 , wherein repetition feedback indicates that a tracked number of repetitions used to correctly decode the downlink data is less than an RL decrement threshold of the RL thresholds.

5. The apparatus of any one of claims 1 -4, wherein the DL resources include a modulation and coding scheme (MCS) and subcarrier spacing.

6. The apparatus of any one of claims 1 -4, wherein the one or more processors are configured to adjust the RL based on the repetition feedback.

7. The apparatus of any one of claims 1 -4, wherein the one or more processors are configured to compare the repetition feedback with one or more prior repetition feedback and to update the RL at least partially based on the comparison.

8. The apparatus of any one of claims 1 -4, wherein the one or more processors are configured to determine an RL increase amount or an RL decrease amount based on one or more of the repetition feedback, the downlink resources, and utilization of the downlink resources.

9. The apparatus of any one of claims 1 -4, wherein the one or more processors are configured to receive an RL increase amount and an RL decrease amount from a network via the RF interface.

10. The apparatus of any one of claims 1 -4, wherein an RL increase for the RL is based on propagation conditions.

1 1 . The apparatus of any one of claims 1 -4, wherein the base station is an evolved Node B (eNB).

12. An apparatus for a user equipment (UE) device, comprising baseband circuitry having:

a radio frequency (RF) interface; and

one or more processors configured to:

obtain repeated downlink transmissions from the RF interface from a base station;

track a number of repetitions to correctly decode downlink data from the repeated downlink transmissions; and

generate repetition feedback based on the tracked number of repetitions and a repetition level (RL).

13. The apparatus of claim 12, wherein the one or more processors are configured to generate an excess number of repetitions report (ENRR) that includes the repetition feedback and provide the ENNR to the RF interface for transmission to a base station.

14. The apparatus of claim 12, wherein the one or more processors are configured to average the tracked repetitions with one or more previous tracked repetitions.

15. The apparatus of claim 12, wherein the one or more processors are configured to compare the tracked repetitions with an RL threshold to at least partially generate the repetition feedback.

16. The apparatus of any one of claims 12-15, wherein the one or more processors are configured to receive allocated downlink resources via the RF interface, wherein the allocated downlink resources include the RL.

17. The apparatus of any one of claims 12-15, wherein the one or more processors are configured to receive an updated allocation of downlink resources via the RF interface, wherein the updated allocation of downlink resources are at least partially based on the repetition feedback.

18. One or more computer-readable media having instructions that, when executed, cause a base station to:

allocate downlink resources, wherein the downlink resources include a repetition level (RL);

send downlink data to the RF interface for transmission to a user equipment (UE) according to the RL;

receive repetition feedback from the RF interface, wherein the repetition feedback is based on the transmission to the UE; and

update the RL based on the repetition feedback.

19. The computer-readable media of claim 18 comprising one or more computer-readable media having instructions that, when executed, further cause the base station to determine one or more RL thresholds.

20. The computer-readable media of claim 19 comprising one or more computer-readable media having instructions that, when executed, further cause the base station to update the RL based on the repetition feedback and one or more previous RLs.

21 . An apparatus for a base station, the apparatus comprising:

a means to transmit the allocated downlink resources to a user equipment (UE) device;

a means to transmit downlink data according to a repetition level (RL);

a means to receive repetition feedback in response to the transmitted downlink data; and

a means to update the RL based on the repetition feedback.

22. The apparatus of claim 21 , further comprising a means to allocate downlink resources including the RL.

23. An apparatus for a user equipment (UE) device, the apparatus comprising: a means to obtain repeated downlink transmissions from a base station;

a means to track a number of repetitions to correctly decode downlink data from the repeated downlink transmissions; and

a means to generate repetition feedback based on the tracked number of repetitions and a repetition level (RL).

24. The apparatus of claim 23, further comprising a means to receive downlink resources, wherein the downlink resources include the RL.