Handling collision for mini-slot-based and slot-based transmission
Described is an apparatus of a User Equipment (UE). The apparatus may comprise a first circuitry, a second circuitry, and a third circuitry. The first circuitry may be operable to process one or more configuration transmissions from the gNB carrying a rule for Uplink (UL) collisions and process a first Downlink (DL) transmission and a second DL transmission. The second circuitry may be operable to identify a first UL transmission for the first DL transmission and a second UL transmission for the second DL transmission, the first UL transmission overlapping with the second UL transmission in at least one Orthogonal Frequency Division Multiplexing (OFDM) symbol. The third circuitry may be operable to generate at least one of the first UL transmission and the second UL transmission in accordance with the rule for UL collisions.
1. An apparatus comprising:
a processor configured to:
process a configuration transmission from a base station (BS) carrying an indicator of a pre-emption condition; and
identify a received Physical Downlink Control Channel (PDCCH) transmission carrying a pre-emption indication in accordance with the pre-emption condition,
wherein a puncturing instance occurs prior to a slot carrying the pre-emption indication, the pre-emption indication providing an offset between the slot and the puncturing instance, and
wherein the pre-emption indication includes an antenna port index; and
an interface for receiving the configuration transmission and the PDCCH transmission.
2. The apparatus of claim 1 , wherein the preemption condition comprises at least one of: a monitoring activation condition, and a triggering condition.
3. The apparatus of claim 2 , wherein the triggering condition comprises a failure to decode a code block of an ongoing Hybrid Automatic Repeat Request (HARQ) process.
4. The apparatus of claim 2 , wherein the triggering condition comprises a presence of an active Hybrid Automatic Repeat Request (HARQ) process.
5. The apparatus of claim 1 , wherein the pre-emption indication is carried by a dedicated Downlink Control Information (DCI) format.
6. The apparatus of claim 5 , wherein a Cyclic Redundancy Check (CRC) of the dedicated DCI format carrying the pre-emption indication is scrambled with a dedicated Radio Network Temporary Identifier (RNTI).
7. The apparatus of claim 1 , wherein the preemption indication further includes an indicator of an offset to increase Hybrid Automatic Repeat Request (HARQ) feedback delay for a corresponding preempted process.
8. The apparatus of claim 1 , wherein the preemption indication further includes a field in a Downlink Control Information (DCI) scheduling a retransmission for an impacted Hybrid Automatic Repeat Request (HARQ) process.
9. The apparatus of claim 1 , wherein the preemption indication further includes a bitmap having a size corresponding to one or more Code Block Groups (CBGs) in a given Hybrid Automatic Repeat Request (HARQ) process.
10. The apparatus of claim 1 , wherein the preemption indication further includes a bitmap having at least one bit indicating whether one or more corresponding Code Block Groups (CBGs) are pre-empted in a previous scheduling occasion of a current Hybrid Automatic Repeat Request (HARQ) process.
11. The apparatus of claim 1 , wherein the preemption indication further includes a bitmap having a bit indicating a code block (CB) in a corresponding Code Block Group (CBG).
12. The apparatus of claim 1 , wherein a time domain part of the preemption indication is a bitmap corresponding to symbols of an impacted slot, the bitmap having a length of 14 bits.
13. A method comprising:
receiving, via an interface, a configuration transmission and a Physical Downlink Control Channel (PDCCH) transmission from a base station (BS);
processing, by a processor, the configuration transmission, the configuration transmission carrying an indicator of a pre-emption condition; and
identifying, by the processor, the PDCCH transmission, the PDCCH transmission carrying a pre-emption indication in accordance with the pre-emption condition,
wherein a puncturing instance occurs prior to a slot carrying the pre-emption indication, the pre-emption indication providing an offset between the slot and the puncturing instance, and
wherein the pre-emption indication includes an antenna port index.
14. The method of claim 13 , wherein the preemption condition comprises at least one of: a monitoring activation condition, and a triggering condition.
15. The method of claim 14 , wherein the triggering condition comprises a failure to decode a code block of an ongoing Hybrid Automatic Repeat Request (HARQ) process.
16. The method of claim 14 , wherein the triggering condition comprises a presence of an active Hybrid Automatic Repeat Request (HARQ) process.
17. The method of claim 13 , wherein the pre-emption indication is carried by a dedicated Downlink Control Information (DCI) format.
18. The method of claim 17 , wherein a Cyclic Redundancy Check (CRC) of the dedicated DCI format carrying the pre-emption indication is scrambled with a dedicated Radio Network Temporary Identifier (RNTI).
19. The method of claim 17 , wherein the preemption indication further includes an indicator of an offset to increase Hybrid Automatic Repeat Request (HARQ) feedback delay for a corresponding preempted process.
20. The method of claim 17 , wherein the preemption indication further includes a field in a DCI scheduling a retransmission for an impacted Hybrid Automatic Repeat Request (HARQ) process.