Application-level slicing: can one UE transmit simultaneously on multiple slices?

[Alan1321]

I have a functional srsRAN properly configured and running along with slicing configuration.
Slices are defined in the gNB config file as well as the core:

Here are what they look like:

  - sst: 1
    sd: 1
    sched_cfg:
      min_prb_policy_ratio: 9
      max_prb_policy_ratio: 11
  - sst: 1
    sd: 2
    sched_cfg:
      min_prb_policy_ratio: 19
      max_prb_policy_ratio: 21
  - sst: 1
    sd: 3
    sched_cfg:
      min_prb_policy_ratio: 29
      max_prb_policy_ratio: 31
  - sst: 1
    sd: 4
    sched_cfg:
      min_prb_policy_ratio: 39
      max_prb_policy_ratio: 41
  - sst: 1
    sd: 5
    sched_cfg:
      min_prb_policy_ratio: 49
      max_prb_policy_ratio: 51

What works now
• UE registers with multiple allowed S-NSSAIs (Quectel module).
• I can attach different slices and switch between them from the UE via AT commands (slice selection works sequentially).

Question
• Can a single UE transmit concurrently on multiple slices in srsRAN?
• Example: UE has slices {(1,1), (1,2), (1,3)} allowed/active.
• Can app1 send over slice (1,1), app2 over (1,2), and app3 over (1,3) at the same time?

if yes, could you please share how we would be able to do this?

I have read all the docs (including srsran-4G, what I was working with previously), and also been going through the github issues but wasn't able to find an answer to this.