Discontinuous scheduling
Methods, systems, and devices for wireless communication are described that support discontinuous scheduling. A base station may transmit, to a user equipment (UE), a grant of resources of a communication channel over a multiple of aggregated TTIs. The UE may monitor a control channel for the grant of resources transmitted by base station. The base station and the UE may identify a location of an excluded TTI within the plurality of aggregated TTIs. The excluded TTI may correspond to a TTI for communicating synchronization signals, random access channel (RACH) signals, or the like. The base station may communicate with the UE via the resources of the communication channel over at least a subset of the aggregated TTIs based on the grant and the location of the excluded TTI.
1. A method for wireless communication, comprising:
monitoring a control channel for a grant of resources of a communication channel;
receiving, from a base station, a reassignment indicator associated with the communication channel;
identifying a location of an excluded portion within the resources based at least in part on the reassignment indicator; and
refraining from communicating with the base station on the excluded portion of the resources of the communication channel based at least in part on the grant and the identified location of the excluded portion.
2. The method of claim 1 , further comprising:
communicating with the base station via the communication channel over at least a subset of the resources based at least in part on the grant and the identified location of the excluded portion.
3. The method of claim 2 , wherein communicating via the communication channel comprises:
transmitting a first portion of a transmission in a first symbol of a plurality of symbols associated with the resources and a second portion of the transmission in a second symbol of the plurality of symbols.
4. The method of claim 3 , further comprising:
identifying the first symbol of the plurality of symbols associated with the resources to be transmitted via a first transmit beam and the second symbol of the plurality of symbols to be transmitted via a second transmit beam.
5. The method of claim 1 , wherein the reassignment indicator indicates the excluded portion within the resources.
6. The method of claim 1 , wherein the reassignment indicator is received via downlink control information (DCI).
7. The method of claim 6 , wherein the DCI includes an explicit indication of the excluded portion.
8. The method of claim 1 , wherein the reassignment indicator is received via radio resource control (RRC) signaling.
9. The method of claim 1 , wherein the reassignment indicator includes information corresponding to one or more capabilities of a user equipment (UE) receiving the reassignment indicator.
10. The method of claim 1 , further comprising:
determining that the reassignment indicator is received after a beginning of a transmission scheduled by the grant; and
cancelling a remainder of the transmission.
11. The method of claim 1 , wherein the resources comprise a plurality of aggregated transmission time intervals (TTIs).
12. The method of claim 11 , further comprising:
adjusting a TTI number for the plurality of aggregated TTIs based at least in part on the location of the excluded portion.
13. The method of claim 1 , further comprising:
determining that the excluded portion of the resources is being punctured by a transmission.
14. The method of claim 1 , further comprising:
communicating an acknowledgment of the reassignment indicator prior to a beginning of the resources.
15. The method of claim 1 , wherein the excluded portion comprises one or more symbols of the resources.
16. The method of claim 1 , wherein the grant comprises at least one of a starting indication, an ending indication, or a transmission time interval (TTI) number indication.
17. A method for wireless communication at a base station, comprising:
transmitting, from the base station and to a user equipment (UE), a grant of resources of a communication channel;
transmitting, from the base station to the UE, a reassignment indicator associated with the communication channel;
identifying a location of an excluded portion within the resources based at least in part on the reassignment indicator; and
refraining from communicating with the UE on the excluded portion of the resources of the communication channel based at least in part on the grant and the identified location of the excluded portion.
18. The method of claim 17 , further comprising:
communicating with the UE via the communication channel over at least a subset of the resources based at least in part on the grant and the identified location of the excluded portion.
19. An apparatus for wireless communication, comprising:
a processor;
memory coupled with the processor; and
instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to:
monitor a control channel for a grant of resources of a communication channel;
receive, from a base station, a reassignment indicator associated with the communication channel;
identify a location of an excluded portion within the resources based at least in part on the reassignment indicator; and
refrain from communicating with the base station on the excluded portion of the resources of the communication channel based at least in part on the grant and the identified location of the excluded portion.
20. The apparatus of claim 19 , wherein the instructions are further executable by the processor to:
communicate with the base station via the communication channel over at least a subset of the resources based at least in part on the grant and the identified location of the excluded portion.
21. The apparatus of claim 20 , wherein the instructions to communicate via the communication channel comprise instructions further executable by the processor to:
transmit a first portion of a transmission in a first symbol of a plurality of symbols associated with the resources and a second portion of the transmission in a second symbol of the plurality of symbols.
22. The apparatus of claim 21 , wherein the instructions are further executable by the processor to:
identify the first symbol of the plurality of symbols associated with the resources to be transmitted via a first transmit beam and the second symbol of the plurality of symbols to be transmitted via a second transmit beam.
23. The apparatus of claim 19 , wherein the reassignment indicator indicates the excluded portion within the resources.
24. The apparatus of claim 19 , wherein the reassignment indicator is received via downlink control information (DCI).
25. The apparatus of claim 24 , wherein the DCI includes an explicit indication of the excluded portion.
26. The apparatus of claim 19 , wherein the reassignment indicator is received via radio resource control (RRC) signaling.
27. The apparatus of claim 19 , wherein the reassignment indicator includes information corresponding to one or more capabilities of a user equipment (UE) receiving the reassignment indicator.
28. The apparatus of claim 19 , wherein the instructions are further executable by the processor to:
determine that the reassignment indicator is received after a beginning a transmission scheduled by the grant; and
cancel a remainder of the transmission.
29. The apparatus of claim 19 , wherein the resources comprise a plurality of aggregated transmission time intervals (TTIs).
30. The apparatus of claim 29 , wherein the instructions are further executable by the processor to:
adjust a TTI number for the plurality of aggregated TTIs based at least in part on the location of the excluded portion.
31. The apparatus of claim 19 , wherein the instructions are further executable by the processor to:
determine that the excluded portion of the resources is being punctured by a transmission.
32. The apparatus of claim 19 , wherein the instructions are further executable by the processor to:
communicate an acknowledgment of the reassignment indicator prior to a beginning the resources.
33. The apparatus of claim 19 , wherein the excluded portion comprises one or more symbols of the resources.
34. The apparatus of claim 19 , wherein the grant comprises at least one of a starting indication, an ending indication, or a transmission time interval (TTI) number.
35. An apparatus for wireless communication at a base station, comprising:
a processor;
memory coupled with the processor; and
instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to:
transmit, from the base station and to a user equipment (UE), a grant of resources of a communication channel;
transmit, from the base station to the UE, a reassignment indicator associated with the communication channel;
identify a location of an excluded portion within the resources based at least in part on the reassignment indicator; and
refrain from communicating with the UE on the excluded portion of the resources of the communication channel based at least in part on the grant and the identified location of the excluded portion.
36. The apparatus of claim 35 , wherein the instructions are further executable by the processor to:
communicate with the UE via the communication channel over at least a subset of the resources based at least in part on the grant and the identified location of the excluded portion.