Traffic multiplexing
The disclosure relates in some aspects to multiplexing different types of traffic. Techniques are disclosed to facilitate puncturing one type of traffic with another type of traffic (e.g., traffic having more stringent latency and/or reliability requirements). In some aspects, these techniques mitigate potential loss of control information for the punctured traffic. In some aspects, the disclosed techniques are applicable to mobile broadband traffic and mission critical traffic.
1. A method of communication for an apparatus, comprising:
scheduling control signaling of first traffic on a first set of resource elements and data of the first traffic on a second set of resource elements, such that a portion of the first set of resource elements is protected from additional scheduling and comprises an indication of a portion of the second set of resource elements for additional control signaling of the first traffic;
scheduling second traffic on the second set of resource elements;
communicating, to another apparatus, a schedule indicative of the scheduling of the control signaling and the data of the first traffic and the scheduling of the second traffic; and
communicating with the other apparatus according to the schedule.
2. The method of claim 1 , wherein the scheduling of the second traffic comprises puncturing at least one resource element for data of the first traffic on the second set of resource elements.
3. The method of claim 1 , further comprising:
scheduling additional second traffic on the first set of resource elements.
4. The method of claim 3 , wherein the scheduling of the additional second traffic comprises puncturing at least one but not all of the first set of resource elements for the control signaling of the first traffic.
5. The method of claim 1 , wherein:
the first traffic is scheduled during transmission time intervals (TTIs) of a first length; and
the second traffic is scheduled during TTIs of a second length that is shorter than the first length.
6. The method of claim 1 , wherein:
the first traffic is associated with a first latency requirement; and
the second traffic is associated with a second latency requirement that is stricter than the first latency requirement.
7. The method of claim 1 , wherein:
the first traffic is associated with a first reliability requirement; and
the second traffic is associated with a second reliability requirement that is stricter than the first reliability requirement.
8. The method of claim 1 , wherein:
the first traffic is associated with a first priority; and
the second traffic is associated with a second priority that is stricter than the first priority.
9. The method of claim 1 , wherein:
the first traffic is mobile broadband traffic; and
the second traffic is mission critical traffic.
10. The method of claim 1 , wherein the resource elements are time and frequency resources.
11. An apparatus for communication, comprising:
a memory; and
a processor coupled to the memory,
the processor and the memory configured to:
schedule control signaling of first traffic on a first set of resource elements and data of the first traffic on a second set of resource elements, such that a portion of the first set of resource elements is protected from additional scheduling and comprises an indication of a portion of the second set of resource elements for additional control signaling of the first traffic;
schedule second traffic on the second set of resource elements;
communicate, to another apparatus, a schedule indicative of the scheduling of the control signaling and the data of the first traffic and the scheduling of the second traffic; and
communicate with the other apparatus according to the schedule.
12. The apparatus of claim 11 , wherein the scheduling of the second traffic comprises puncturing at least one resource element for data of the first traffic on the second set of resource elements.
13. The apparatus of claim 11 , wherein the processor and the memory are further configured to:
schedule additional second traffic on the first set of resource elements.
14. A method of communication for an apparatus, comprising:
receiving a schedule from another apparatus, wherein the schedule indicates scheduling of control signaling of first traffic on a first set of resource elements and scheduling of data of the first traffic on a second set of resource elements, such that a portion of the first set of resource elements is protected from additional scheduling and comprises an indication of a portion of the second set of resource elements for additional control signaling of the first traffic;
receiving information according to the schedule;
determining, based on the received information, whether the second traffic punctured any resource element for the first traffic; and
processing the first traffic based on the determination.
15. The method of claim 14 , wherein the determination of whether the second traffic punctured any resource element for the first traffic comprises determining whether the second traffic punctured the first set of resource elements.
16. The method of claim 14 , wherein the determination of whether the second traffic punctured any resource element for the first traffic comprises determining whether the second traffic punctured a second set of resource elements carrying data for the first traffic.
17. The method of claim 14 , wherein the schedule indicates that the second traffic is allowed to puncture at least one second resource element for data of the first traffic.
18. The method of claim 14 , wherein:
the first traffic is scheduled during transmission time intervals (TTIs) of a first length; and
the second traffic is scheduled during TTIs of a second length that is shorter than the first length.
19. The method of claim 14 , wherein:
the first traffic is associated with a first latency requirement; and
the second traffic is associated with a second latency requirement that is stricter than the first latency requirement.
20. The method of claim 14 , wherein:
the first traffic is associated with a first reliability requirement; and
the second traffic is associated with a second reliability requirement that is stricter than the first reliability requirement.
21. The method of claim 14 , wherein:
the first traffic is associated with a first priority; and
the second traffic is associated with a second priority that is stricter than the first priority.
22. An apparatus for communication, comprising:
a memory; and
a processor coupled to the memory,
the processor and the memory configured to:
receive a schedule from another apparatus, wherein the schedule indicates scheduling of control signaling of first traffic on a first set of resource elements and scheduling of data of the first traffic on a second set of resource elements, such that a portion of the first set of resource elements is protected from additional scheduling and comprises an indication of a portion of the second set of resource elements for additional control signaling of the first traffic;
receive information according to the schedule;
determine, based on the received information, whether the second traffic punctured at least one second resource element for the first traffic; and
process the first traffic based on the determination.