Beam management for multiple transport block transmission with repetitions

1 . A method of wireless communication performed by a user equipment (UE), the method comprising:

receiving, from a base station (BS), a multi-transport block (TB) repetition configuration indicating a first number of repetitions and a second number of repetitions;

receiving, from the BS, downlink control information (DCI) indicating a beam pattern including a plurality of beam directions, wherein the beam pattern includes a first preconfigured beam sequence associated with a first TB and a second preconfigured beam sequence associated with a second TB;

mapping the first preconfigured beam sequence to the first number of repetitions of the first TB in a multi-TB repetition sequence including the first number of repetitions and the second number of repetitions;

mapping the second preconfigured beam sequence to the second number of repetitions of the second TB in the multi-TB repetition sequence; and

communicating, with the BS based on the multi-TB repetition configuration and the beam pattern, the first TB and the second TB associated with a same scheduling grant, wherein the communicating the first TB and the second TB includes:

communicating the first number of repetitions for the first TB; and

communicating the second number of repetitions for the second TB.

2 . The method of claim 1 , further comprising:

determining a multi-TB repetition sequence including the first number of repetitions and the second number of repetitions; and

mapping the beam pattern to the multi-TB repetition sequence, wherein the beam pattern indicates a preconfigured pattern of beam directions.

3 . The method of claim 1 , further comprising:

determining a multi-TB repetition sequence including the first number of repetitions and the second number of repetitions;

mapping the beam pattern to the first number of repetitions of the first TB in a multi-TB repetition sequence including the first number of repetitions and the second number of repetitions, wherein the beam pattern indicates a preconfigured pattern of beam directions; and

mapping the beam pattern to the second number of repetitions of the second TB in the multi-TB repetition sequence.

4 . The method of claim 1 , further comprising:

mapping, to a multi-TB repetition sequence including the first number of repetitions and the second number of repetitions, one of the beam pattern or a pre-configured beam pattern different from the beam pattern based on the first number of repetitions of the first TB, the second number of repetitions of the second TB, and a number of scheduled TBs associated with the scheduling grant.

5 . The method of claim 1 , further comprising:

receiving, from the BS, a redundancy version (RV) configuration indicating a first RV value for the first repetition of the first TB and a second RV value for the first repetition of the second TB;

mapping a first preconfigured RV sequence starting from the first RV value to the first number of repetitions; and

mapping a second preconfigured RV sequence starting from the second RV value to the second number of repetitions independently of the first number of repetitions.

6 . The method of claim 1 , wherein:

the communicating the first number of repetitions of the first TB comprises receiving a first number of downlink (DL) repetitions of the first TB; and

the communicating the first number of repetitions of the first TB comprises receiving a second number of DL repetitions of the second TB.

7 . The method of claim 1 , wherein:

the communicating the first number of repetitions of the first TB comprises transmitting a first number of uplink (UL) repetitions of the first TB; and

the communicating the first number of repetitions of the first TB comprises transmitting a second number of UL repetitions of the second TB.

8 . The method of claim 1 , wherein the DCI indicates the scheduling grant.

9 . The method of claim 1 , wherein the scheduling grant is a semi-static grant.

10 . A method of wireless communication performed by a user equipment (UE), the method comprising:

receiving, from a base station (BS), a multi-transport block (TB) repetition configuration indicating a first number of repetitions and a second number of repetitions;

receiving, from the BS, downlink control information (DCI) indicating a beam pattern including a plurality of beam directions;

communicating, with the BS based on the multi-TB repetition configuration and the beam pattern, a first TB and a second TB associated with a same scheduling grant, wherein the communicating the first TB and the second TB includes:

communicating the first number of repetitions for the first TB; and

communicating the second number of repetitions for the second TB;

the method further comprising:

segmenting a TB repetition of the first number of repetitions overlapping a slot boundary into a first actual TB repetition and a second actual TB repetition;

mapping a first beam direction of the beam pattern to the first actual TB repetition of the TB repetition; and

mapping a second beam direction of the beam pattern to the second actual TB repetition of the TB repetition.

11 . A method of wireless communication performed by a user equipment (UE), the method comprising:

receiving, from a base station (BS), a multi-transport block (TB) repetition configuration indicating a first number of repetitions and a second number of repetitions;

receiving, from the BS, downlink control information (DCI) indicating a beam pattern including a plurality of beam directions;

communicating, with the BS based on the multi-TB repetition configuration and the beam pattern, a first TB and a second TB associated with a same scheduling grant, wherein the communicating the first TB and the second TB includes:

communicating the first number of repetitions for the first TB; and

communicating the second number of repetitions for the second TB;

the method further comprising:

determining whether a gap period between a first TB repetition of the first number of repetitions associated with a first beam direction and a second TB repetition of the second number of repetitions associated with a second beam direction is below a threshold; and

refraining, in response to determining that the gap period is below the threshold, from communicating the second TB repetition in a slot immediately following the first TB repetition.

12 . A method of wireless communication performed by a user equipment (UE), the method comprising:

receiving, from a base station (BS), a multi-transport block (TB) repetition configuration indicating a first number of repetitions and a second number of repetitions;

receiving, from the BS, downlink control information (DCI) indicating a beam pattern including a plurality of beam directions;

receiving, from the BS, a redundancy version (RV) configuration indicating a first RV value for a first repetition of a first TB and a second RV value for a first repetition of a second TB;

mapping a first preconfigured RV sequence starting from the first RV value to the first number of repetitions; and

mapping a second preconfigured RV sequence starting from the second RV value to the second number of repetitions independently of the first number of repetitions;

communicating, with the BS based on the multi-TB repetition configuration and the beam pattern, the first TB and the second TB associated with a same scheduling grant, wherein the communicating the first TB and the second TB includes:

communicating the first number of repetitions for the first TB; and

communicating the second number of repetitions for the second TB;

wherein:

the mapping the first preconfigured RV sequence starting from the first RV value to the first number of repetitions is based on a first beam direction associated with each TB repetition in the first number of repetitions, and

the mapping the second preconfigured RV sequence starting from the second RV value to the second number of repetitions is based on a second beam direction associated with each TB repetition in the second number of repetitions.

13 . A method of wireless communication performed by a user equipment (UE), the method comprising:

receiving, from a base station (BS), a multi-transport block (TB) repetition configuration indicating a first number of repetitions and a second number of repetitions;

receiving, from the BS, downlink control information (DCI) indicating a beam pattern including a plurality of beam directions;

receiving, from the BS, a redundancy version (RV) configuration indicating a first RV value for a first repetition of a first TB and a second RV value for a first repetition of a second TB;

mapping a first preconfigured RV sequence starting from the first RV value to the first number of repetitions; and

mapping a second preconfigured RV sequence starting from the second RV value to the second number of repetitions independently of the first number of repetitions;

communicating, with the BS based on the multi-TB repetition configuration and the beam pattern, the first TB and the second TB associated with a same scheduling grant, wherein the communicating the first TB and the second TB includes:

communicating the first number of repetitions for the first TB; and

communicating the second number of repetitions for the second TB;

wherein:

the RV configuration further indicates an RV offset, and

the mapping the first preconfigured RV sequence to the first number of repetitions is further based on the RV offset; and

the mapping the second preconfigured RV sequence to the second number of repetitions is further based on the RV offset.

14 . A method of wireless communication performed by a user equipment (UE), the method comprising:

receiving, from a base station (BS), a multi-transport block (TB) repetition configuration indicating a first number of repetitions and a second number of repetitions;

receiving, from the BS, downlink control information (DCI) indicating a beam pattern including a plurality of beam directions;

receiving, from the BS, a redundancy version (RV) configuration indicating a first RV value for a first repetition of a first TB and a second RV value for a first repetition of a second TB;

mapping a first preconfigured RV sequence starting from the first RV value to the first number of repetitions; and

mapping a second preconfigured RV sequence starting from the second RV value to the second number of repetitions independently of the first number of repetitions;

communicating, with the BS based on the multi-TB repetition configuration and the beam pattern, the first TB and the second TB associated with a same scheduling grant, wherein the communicating the first TB and the second TB includes:

communicating the first number of repetitions for the first TB; and

communicating the second number of repetitions for the second TB;

wherein:

the RV configuration further indicates a first RV offset for the first TB and a second RV offset for the second TB,

the mapping a predefined RV sequence to the first number of repetitions is further based on the first RV offset, and

the mapping a predefined RV sequence to the second number of repetitions is further based on the second RV offset.

15 . A method of wireless communication performed by a base station (BS), the method comprising:

transmitting, to a user equipment (UE), a multi-transport block (TB) repetition configuration indicating a first number of repetitions and a second number of repetitions;

transmitting, to the UE, downlink control information (DCI) indicating a beam pattern including a plurality of beam directions;

communicating, with the UE based on the multi-TB repetition configuration and the beam pattern, a first TB and a second TB associated with a same scheduling grant, wherein the communicating the first TB and the second TB includes:

communicating the first number of repetitions for the first TB; and

communicating the second number of repetitions for the second TB;

wherein the beam pattern includes a first preconfigured beam sequence associated with the first TB and a second preconfigured beam sequence associated with the second TB, and

further comprising:

mapping the first preconfigured beam sequence to the first number of repetitions of the first TB in a multi-TB repetition sequence including the first number of repetitions and the second number of repetitions; and

mapping the second preconfigured beam sequence to the second number of repetitions of the second TB in the multi-TB repetition sequence.

16 . The method of claim 15 , further comprising:

determining a multi-TB repetition sequence including the first number of repetitions and the second number of repetitions; and

mapping the beam pattern to the multi-TB repetition sequence, wherein the beam pattern indicates a preconfigured pattern of beam directions.

17 . The method of claim 15 , further comprising:

determining a multi-TB repetition sequence including the first number of repetitions and the second number of repetitions;

mapping the beam pattern to the first number of repetitions of the first TB in a multi-TB repetition sequence including the first number of repetitions and the second number of repetitions, wherein the beam pattern indicates a preconfigured pattern of beam directions; and

mapping the beam pattern to the second number of repetitions of the second TB in the multi-TB repetition sequence.

18 . The method of claim 15 , further comprising:

segmenting a TB repetition of the first number of repetitions overlapping a slot boundary into a first actual TB repetition and a second actual TB repetition;

mapping a first beam direction of the beam pattern to the first actual TB repetition of the TB repetition; and

mapping a second beam direction of the beam pattern to the second actual TB repetition of the TB repetition.

19 . The method of claim 15 , further comprising:

determining whether a gap period between a first TB repetition of the first number of repetitions associated with a first beam direction and a second TB repetition of the second number of repetitions associated with a second beam direction is below a threshold; and

refraining, in response to determining that the gap period is below the threshold, from communicating the second TB repetition in a slot immediately following the first TB repetition.

20 . The method of claim 15 , further comprising:

mapping, to a multi-TB repetition sequence including the first number of repetitions and the second number of repetitions, one of the beam pattern or a pre-configured beam pattern different from the beam pattern based on the first number of repetitions of the first TB, the second number of repetitions of the second TB, and a number of scheduled TBs associated with the scheduling grant.

21 . The method of claim 15 , further comprising:

transmitting, to the UE, a redundancy version (RV) configuration indicating a first RV value for the first repetition of the first TB and a second RV value for the first repetition of the second TB;

mapping a first preconfigured RV sequence starting from the first RV value to the first number of repetitions; and

mapping a second preconfigured RV sequence starting from the second RV value to the second number of repetitions independently of the first number of repetitions.

22 . The method of claim 21 , wherein:

the mapping the first preconfigured RV sequence starting from the first RV value to the first number of repetitions is based on a first beam direction associated with each TB repetition in the first number of repetitions, and

the mapping the second preconfigured RV sequence starting from the second RV value to the second number of repetitions is based on a second beam direction associated with each TB repetition in the second number of repetitions.

23 . The method of claim 22 , wherein:

the RV configuration further indicates an RV offset, and

the mapping the first preconfigured RV sequence to the first number of repetitions is further based on the RV offset; and

the mapping the second preconfigured RV sequence to the second number of repetitions is further based on the RV offset.

24 . The method of claim 22 , wherein:

the RV configuration further indicates a first RV offset for the first TB and a second RV offset for the second TB,

the mapping a predefined RV sequence to the first number of repetitions is further based on the first RV offset, and

the mapping a predefined RV sequence to the second number of repetitions is further based on the second RV offset.

25 . A user equipment (UE), comprising:

a transceiver; and

a processor in communication with the transceiver and configured to cause the transceiver to:

receive, from a base station (BS), a multi-transport block (TB) repetition configuration indicating a first number of repetitions and a second number of repetitions;

receive, from the BS, downlink control information (DCI) indicating a beam pattern including a plurality of beam directions, wherein the beam pattern includes a first preconfigured beam sequence associated with a first TB and a second preconfigured beam sequence associated with a second TB;

map the first preconfigured beam sequence to the first number of repetitions of the first TB in a multi-TB repetition sequence including the first number of repetitions and the second number of repetitions; and

map the second preconfigured beam sequence to the second number of repetitions of the second TB in the multi-TB repetition sequence; and

communicate, with the BS based on the multi-TB repetition configuration and the beam pattern, the first TB and the second TB associated with a same scheduling grant, wherein the communicating the first TB and the second TB includes:

communicate the first number of repetitions for the first TB; and

communicate the second number of repetitions for the second TB.

26 . The UE of claim 25 , wherein the processor is further configured to:

determine whether a gap period between a first TB repetition of the first number of repetitions associated with a first beam direction and a second TB repetition of the second number of repetitions associated with a second beam direction is below a threshold; and

refrain, in response to determining that the gap period is below the threshold, from communicating the second TB repetition in a slot immediately following the first TB repetition.

27 . The UE of claim 25 , wherein the processor is further configured to:

cause the transceiver to receive, from the BS, a redundancy version (RV) configuration indicating a first RV value for the first repetition of the first TB and a second RV value for the first repetition of the second TB;

map a first preconfigured RV sequence starting from the first RV value to the first number of repetitions; and

map a second preconfigured RV sequence starting from the second RV value to the second number of repetitions independently of the first number of repetitions.