maki/openairinterface5g
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Fix bug for SRS generation when freqDomainShift (n_shift) is not 0

Browse Source 
According to TS 38.211 section 6.4.1.4.3, the frequency domain shift value n_shift
is from higher-layer parameter freqDomainShift.
The quantity n_RRC is given by higher-layer parameter freqDomainPosition.
Also corrected k_0_overbar_p calculation formula to align with standard.
This commit is contained in:
alexjiao
2025-11-14 19:21:19 +08:00
parent 8186e840a3
commit 19301afcb1
2 changed files with 3 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair1/PHY/nr_phy_common/src/nr_phy_common_srs.c
+1 -1
View File
@@ -293,7 +293,7 @@ bool generate_srs_nr(NR_DL_FRAME_PARMS *frame_parms,
}
uint8_t k_l_offset = 0; // If the SRS is configured by the IE SRS-PosResource-r16, the quantity k_l_offset is
// given by TS 38.211 - Table 6.4.1.4.3-2, otherwise k_l_offset = 0.
uint8_t k_0_overbar_p = (nr_srs_info->n_shift * NR_NB_SC_PER_RB + (K_TC_p + k_l_offset)) % K_TC;
uint8_t k_0_overbar_p = nr_srs_info->n_shift * NR_NB_SC_PER_RB + (K_TC_p + k_l_offset) % K_TC;
uint8_t k_0_p = k_0_overbar_p + K_TC * M_sc_b_SRS * sum_n_b;
nr_srs_info->k_0_p[p_index][l_line] = k_0_p;