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Merge remote-tracking branch 'origin/define_c' into integration_2026_w03 (!3826)

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Define speed of light

Common definition for speed of light constant, instead of multiple local
definitions
This commit is contained in:
Robert Schmidt
2026-01-13 11:23:49 +01:00
parent d456b1901f d4e3c5d384
commit 815a5719cd
6 changed files with 6 additions and 9 deletions
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openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_RA.c
+1 -2
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@@ -1542,8 +1542,7 @@ static void nr_generate_Msg2(module_id_t module_idP,
float T_c_ns = 0.509;
int numerology = ul_bwp->scs;
float rtt_ns = T_c_ns * 16 * 64 / (1 << numerology) * ra->timing_offset;
float speed_of_light_in_meters_per_second = 299792458.0f;
float distance_in_meters = speed_of_light_in_meters_per_second * rtt_ns / 1000 / 1000 / 1000 / 2;
float distance_in_meters = (float) SPEED_OF_LIGHT * rtt_ns / 1000 / 1000 / 1000 / 2;
LOG_A(NR_MAC,
"UE %04x: %d.%d Generating RA-Msg2 DCI, RA RNTI 0x%x, state %d, preamble_index(RAPID) %d, "
"timing_offset = %d (estimated distance %.1f [m])\n",