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Feature #3239

test dyn TS: switch to voice and back to data, ensure GPRS still works, and ensure switching back to voice still works

Added by neels 4 months ago.

Status:
New
Priority:
Normal
Assignee:
-
Target version:
-
Start date:
05/05/2018
Due date:
% Done:

0%

Estimated time:
Spec Reference:

Description

Use a pchan config that will switch over all available TS to voice.

Test Osmocom style dynamic timeslots:

network
 dyn_ts_allow_tch_f 0
 bts 0
  trx 0
   timeslot 0
    phys_chan_config CCCH+SDCCH4
   timeslot 1
    phys_chan_config SDCCH8
   timeslot 2
    phys_chan_config TCH/F_TCH/H_PDCH
   timeslot 3
    phys_chan_config SDCCH8
   timeslot 4
    phys_chan_config SDCCH8
   timeslot 5
    phys_chan_config SDCCH8
   timeslot 6
    phys_chan_config SDCCH8
   timeslot 7
    phys_chan_config SDCCH8

A voice call will switch over to TCH/H and assign one of the two available TCH/H to each MS.
As soon as both legs of the voice call are released, the TS goes back to PDCH.

Test ip.access style dynamic timeslots:

   timeslot 0
    phys_chan_config CCCH+SDCCH4
   timeslot 1
    phys_chan_config SDCCH8
   timeslot 2
    phys_chan_config TCH/F_PDCH
   timeslot 3
    phys_chan_config TCH/F_PDCH
   timeslot 4
    phys_chan_config SDCCH8
   timeslot 5
    phys_chan_config SDCCH8
   timeslot 6
    phys_chan_config SDCCH8
   timeslot 7
    phys_chan_config SDCCH8

A voice call will assign both timeslots as TCH/F, one for each MS.

For both:

1. ensure GPRS use works
2. do a voice call between two MS, hang up
3. ensure GPRS use again works
4. do another voice call, to ensure repeated switching works

and

  • test with CS encryption (see #3238 which shows that encryption could break PDTCH if it remains set after a TCH mode)
  • while at it, why not also test without CS encryption.

Related issues

Blocked by OsmoGSMTester - Feature #2202: osmo-gsm-tester: add GPRS data servicesStalled2017-04-26

History

#1 Updated by neels 4 months ago

  • Blocked by Feature #2202: osmo-gsm-tester: add GPRS data services added

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