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Merge remote-tracking branch 'origin/issue-929' into integration_2025_w16 (!3330)

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NR UE: consider the ratio of PUSCH EPRE to DMRS EPRE when calculating PUSCH
DMRS power scaling

When calculating DMRS scaling ratio, we should consider PUSCH EPRE to DMRS
EPRE according to TS 38.214 Table 6.2.2-1.

Close #929
This commit is contained in:
Jaroslava Fiedlerova
2025-04-17 23:03:13 +02:00
parent 6e67c1ac20 570c1b5639
commit 18372ae27e
7 changed files with 47 additions and 13 deletions
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common/utils/nr/nr_common.c
+13
View File
@@ -36,6 +36,7 @@
#include "common/utils/LOG/log.h"
#include "nr_common.h"
#include <limits.h>
#include <math.h>
#define C_SRS_NUMBER (64)
#define B_SRS_NUMBER (4)
@@ -1427,3 +1428,15 @@ frequency_range_t get_freq_range_from_band(uint16_t band)
{
return band <= 256 ? FR1 : FR2;
}
float get_beta_dmrs_pusch(int num_cdm_groups_no_data, pusch_dmrs_type_t dmrs_type)
{
float beta_dmrs_pusch = 1.0;
if (num_cdm_groups_no_data == 2) {
beta_dmrs_pusch = powf(10.0, 3.0 / 20.0);
} else if (num_cdm_groups_no_data == 3) {
if (dmrs_type == pusch_dmrs_type2)
beta_dmrs_pusch = powf(10.0, 4.77 / 20.0);
}
return beta_dmrs_pusch;
}
common/utils/nr/nr_common.h
+16
View File
@@ -130,6 +130,11 @@ typedef enum frequency_range_e {
FR2
} frequency_range_t;
typedef enum {
pusch_dmrs_type1 = 0,
pusch_dmrs_type2 = 1
} pusch_dmrs_type_t;
#define MAX_NUM_SLOTS_ALLOWED 80 // up to numerology 3 (120 KHz SCS) is supported
enum slot_type { TDD_NR_DOWNLINK_SLOT, TDD_NR_UPLINK_SLOT, TDD_NR_MIXED_SLOT };
@@ -302,6 +307,17 @@ frequency_range_t get_freq_range_from_freq(uint64_t freq);
frequency_range_t get_freq_range_from_arfcn(uint32_t arfcn);
frequency_range_t get_freq_range_from_band(uint16_t band);
/**
* @brief Calculates the scaling factor for the ratio of PUSCH EPRE to DMRS EPRE.
*
* @param num_cdm_groups_no_data The number of CDM groups without data.
* @param dmrs_type The DMRS type.
* @return The calculated beta scaling factor for the ratio of PUSCH EPRE to DMRS EPRE.
*
* @note The values are derived from TS 38.214 Table 6.2.2-1.
*/
float get_beta_dmrs_pusch(int num_cdm_groups_no_data, pusch_dmrs_type_t dmrs_type);
#define CEILIDIV(a,b) ((a+b-1)/b)
#define ROUNDIDIV(a,b) (((a<<1)+b)/(b<<1))