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1. (WO2019032310) CBG INDICATION WITH MULTI-TTI GRANT
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[0081] WHAT IS CLAIMED IS:

CLAIMS

1. A method of wireless communication, comprising:

establishing, at a base station, a communication link with a served user equipment (UE), wherein the communication link includes configuration for code block group (CBG)- level transmission and a single grant is configurable to carry assignment for a plurality of transmission time intervals (TTIs);

preparing, by the base station, a transmission indication signal of predetermined length for the served UE including one of: a transmission grant or a retransmission grant for each of the plurality of TTIs, wherein the transmission indication signal includes for a corresponding TTI of the plurality of TTIs one or more of: a transport block (TB)-level new data indicator (NDI) and a CBG transmission indication; and

transmitting the transmission indication signal to the served UE.

2. The method of claim 1, wherein the preparing includes:

determining, by the base station, available space within the predetermined length of the transmission indication signal; and

generating, by the base station, only TB-level NDI for the corresponding TTI in response to the available space being less than a threshold size.

3. The method of claim 1, wherein the preparing includes:

determining, by the base station, available space within the predetermined length of the transmission indication signal; and

in response to the available space exceeding a threshold size:

generating, by the base station, one or more TB-level NDI for one or more of the corresponding TTI

identifying, by the base station, one or more of the corresponding TTI configured for CBG-level transmission for the CBG transmission indication; and

generating, by the base station, one or more CBG transmission indications associated with the one or more of the corresponding TTI; and

adding, by the base station, a TTI index to the transmission indication signal for each of the corresponding TTI for which the one or more CBG transmission indications is included in the transmission indication signal.

4. The method of claim 3, further including:

concatenating, by the base station, two or more CBG transmission indications of the one or more CBG transmission indications in the transmission indication signal up to the predetermined length.

5. The method of claim 4, further including:

providing, by the base station, identification information in the transmission indication signal, wherein the identification information identifies a bit field in the transmission indication signal for the two or more CBG transmission indications.

6. The method of claim 5, wherein the identification information includes one of: a single number identifier for the transmission indication signal identifying a total number of the two or more CBG transmission indications in the bit field; or

a field identifier for each of the two or more CBG transmission indications signaling a next field as the bit field for the each of the two or more CBG transmission indications.

7. The method of claim 3, wherein the identifying the one or more of the corresponding TTI includes:

identifying each TTI of the plurality of TTIs configured for CBG-level transmission; determining a type of interference experienced on the each TTI, wherein the one or more of the corresponding TTI identified for the CBG transmission indication are determined as experiencing one of: a bursty type of interference or fewer failed CBG transmissions.

8. The method of claim 3, further including:

refraining, by the base station, from including one or more of the one or more TD-level NDIs corresponding to the one or more of the corresponding TTI associated with the one or more CBG transmission indications.

9. The method of claim 1, further including:

determining, by the base station, unused bits of the predetermined length of the transmission indication signal after including all the TB-level NDI, the CBG transmission indication, and the TTI index for the transmission indication signal; and

adding, by the base station, padding for the unused bits.

10. An apparatus configured for wireless communication, comprising:

means for establishing, at a base station, a communication link with a served user equipment (UE), wherein the communication includes configuration for code block group (CBG)-level transmission and a single grant may carry assignment for a plurality of transmission time intervals (TTIs);

means for preparing, by the base station, a transmission indication signal of predetermined length for the served UE including one of: a transmission grant or a retransmission grant for each of the plurality of TTIs, wherein the transmission indication signal includes for a corresponding TTI of the plurality of TTIs one or more of: a transport block (TB)-level new data indicator (NDI) and a CBG transmission indication; and

means for transmitting the transmission indication signal to the served UE.

11. The apparatus of claim 10, wherein the means for preparing includes:

means for determining, by the base station, available space within the predetermined length of the transmission indication signal; and

means for generating, by the base station, only TB-level NDI for the corresponding TTI in response to the available space being less than a threshold size.

12. The apparatus of claim 10, wherein the means for preparing includes:

means for determining, by the base station, available space within the predetermined length of the transmission indication signal; and

in response to the available space exceeding a threshold size:

means for generating, by the base station, one or more TB-level NDI for one or more of the corresponding TTI

means for identifying, by the base station, one or more of the corresponding TTI configured for CBG-level transmission for the CBG transmission indication; and

means for generating, by the base station, one or more CBG transmission indications associated with the one or more of the corresponding TTI; and

means for adding, by the base station, a TTI index to the transmission indication signal for each of the corresponding TTI for which the one or more CBG transmission indications is included in the transmission indication signal.

13. The apparatus of claim 12, further including:

means for concatenating, by the base station, two or more CBG transmission indications of the one or more CBG transmission indications in the transmission indication signal up to the predetermined length.

14. The apparatus of claim 13, further including:

means for providing, by the base station, identification information in the

transmission indication signal, wherein the identification information identifies a bit field in the transmission indication signal for the two or more CBG transmission indications.

15. The apparatus of claim 14, wherein the identification information includes one of:

a single number identifier for the transmission indication signal identifying a total number of the two or more CBG transmission indications in the bit field; or

a field identifier for each of the two or more CBG transmission indications signaling a next field as the bit field for the each of the two or more CBG transmission indications.

16. The apparatus of claim 12, wherein the means for identifying the one or more of the corresponding TTI includes:

means for identifying each TTI of the plurality of TTIs configured for CBG-level transmission;

means for determining a type of interference experienced on the each TTI, wherein the one or more of the corresponding TTI identified for the CBG transmission indication are determined as experiencing one of: a bursty type of interference or fewer failed CBG transmissions.

17. The apparatus of claim 12, further including:

means for refraining, by the base station, from including one or more of the one or more TD-level NDIs corresponding to the one or more of the corresponding TTI associated with the one or more CBG transmission indications.

18. The apparatus of claim 10, further including:

means for determining, by the base station, unused bits of the predetermined length of the transmission indication signal after including all the TB-level NDI, the CBG transmission indication, and the TTI index for the transmission indication signal; and

means for adding, by the base station, padding for the unused bits.

19. A non-transitory computer-readable medium having program code recorded thereon, the program code comprising:

program code executable by a computer for causing the computer to establish, at a base station, a communication link with a served user equipment (UE), wherein the communication includes configuration for code block group (CBG)-level transmission and a single grant may carry assignment for a plurality of transmission time intervals (TTIs);

program code executable by the computer for causing the computer to prepare, by the base station, a transmission indication signal of predetermined length for the served UE including one of: a transmission grant or a retransmission grant for each of the plurality of TTIs, wherein the transmission indication signal includes for a corresponding TTI of the plurality of TTIs one or more of: a transport block (TB)-level new data indicator (NDI) and a CBG transmission indication; and

program code executable by the computer for causing the computer to transmit the transmission indication signal to the served UE.

20. The non-transitory computer-readable medium of claim 19, wherein the program code executable by the computer for causing the computer to prepare includes: program code executable by the computer for causing the computer to determine, by the base station, available space within the predetermined length of the transmission indication signal; and

program code executable by the computer for causing the computer to generate, by the base station, only TB-level NDI for the corresponding TTI in response to the available space being less than a threshold size.

21. The non-transitory computer-readable medium of claim 19, wherein the program code executable by the computer for causing the computer to prepare includes: program code executable by the computer for causing the computer to determine, by the base station, available space within the predetermined length of the transmission indication signal; and

executable in response to the available space exceeding a threshold size:

program code executable by the computer for causing the computer to generate, by the base station, one or more TB-level NDI for one or more of the corresponding TTI

program code executable by the computer for causing the computer to identify, by the base station, one or more of the corresponding TTI configured for CBG-level transmission for the CBG transmission indication; and

program code executable by the computer for causing the computer to generate, by the base station, one or more CBG transmission indications associated with the one or more of the corresponding TTI; and

program code executable by the computer for causing the computer to add, by the base station, a TTI index to the transmission indication signal for each of the

corresponding TTI for which the one or more CBG transmission indications is included in the transmission indication signal.

22. The non-transitory computer-readable medium of claim 19, further including: program code executable by the computer for causing the computer to determine, by the base station, unused bits of the predetermined length of the transmission indication signal after including all the TB-level NDI, the CBG transmission indication, and the TTI index for the transmission indication signal; and

program code executable by the computer for causing the computer to add, by the base station, padding for the unused bits.

23. An apparatus configured for wireless communication, the apparatus comprising:

at least one processor; and

a memory coupled to the at least one processor,

wherein the at least one processor is configured:

to establish, at a base station, a communication link with a served user equipment (UE), wherein the communication includes configuration for code block group (CBG)-level transmission and a single grant may carry assignment for a plurality of transmission time intervals (TTIs);

to prepare, by the base station, a transmission indication signal of predetermined length for the served UE including one of: a transmission grant or a

retransmission grant for each of the plurality of TTIs, wherein the transmission indication signal includes for a corresponding TTI of the plurality of TTIs one or more of: a transport block (TB)-level new data indicator (NDI) and a CBG transmission indication; and

to transmit the transmission indication signal to the served UE.

24. The apparatus of claim 23, wherein the configuration of the at least one processor to prepare includes configuration of the at least one processor:

to determine, by the base station, available space within the predetermined length of the transmission indication signal; and

to generate, by the base station, only TB-level NDI for the corresponding TTI in response to the available space being less than a threshold size.

25. The apparatus of claim 23, wherein the configuration of the at least one processor to prepare includes configuration of the at least one processor:

to determine, by the base station, available space within the predetermined length of the transmission indication signal; and

executable in response to the available space exceeding a threshold size:

to generate, by the base station, one or more TB-level NDI for one or more of the corresponding TTI

to identify, by the base station, one or more of the corresponding TTI configured for CBG-level transmission for the CBG transmission indication; and

to generate, by the base station, one or more CBG transmission indications associated with the one or more of the corresponding TTI; and

to add, by the base station, a TTI index to the transmission indication signal for each of the corresponding TTI for which the one or more CBG transmission indications is included in the transmission indication signal.

26. The apparatus of claim 25, further including:

program code executable by the computer for causing the computer to concatenate, by the base station, two or more CBG transmission indications of the one or more CBG transmission indications in the transmission indication signal up to the predetermined length.

27. The apparatus of claim 26, further including configuration of the at least one processor to provide, by the base station, identification information in the transmission indication signal, wherein the identification information identifies a bit field in the transmission indication signal for the two or more CBG transmission indications.

28. The apparatus of claim 25, wherein the configuration of the at least one processor to identify the one or more of the corresponding TTI includes configuration of the at least one processor:

to identify each TTI of the plurality of TTIs configured for CBG-level transmission; to determine a type of interference experienced on the each TTI, wherein the one or more of the corresponding TTI identified for the CBG transmission indication are determined as experiencing one of: a bursty type of interference or fewer failed CBG transmissions.

29. The apparatus of claim 25, further including configuration of the at least one processor to refrain, by the base station, from including one or more of the one or more TD-level NDIs corresponding to the one or more of the corresponding TTI associated with the one or more CBG transmission indications.

30. The apparatus of claim 23, further including configuration of the at least one processor:

to determine, by the base station, unused bits of the predetermined length of the transmission indication signal after including all the TB-level NDI, the CBG transmission indication, and the TTI index for the transmission indication signal; and

to add, by the base station, padding for the unused bits.