diff --git a/nfapi/open-nFAPI/nfapi/public_inc/nfapi_nr_interface_scf.h b/nfapi/open-nFAPI/nfapi/public_inc/nfapi_nr_interface_scf.h
index c3a173758cc30cceb688775293039799780b6604..0326bd20b1ce87dcca3a37c9fa4670fa3bc5fb0d 100644
--- a/nfapi/open-nFAPI/nfapi/public_inc/nfapi_nr_interface_scf.h
+++ b/nfapi/open-nFAPI/nfapi/public_inc/nfapi_nr_interface_scf.h
@@ -1665,41 +1665,34 @@ typedef struct
} nfapi_nr_uci_indication_t;
-//3.4.10 srs_indication
-//table 3-73
-typedef struct
-{
- uint8_t rb_snr;
-}nfapi_nr_srs_indication_reported_symbol_resource_block_t;
+/// 5G PHY FAPI Specification: SRS indication - Section 3.4.10, Table 3-73
-typedef struct
-{
- uint16_t num_rbs;
+typedef struct {
+ uint8_t rb_snr; // SNR value in dB. Value: 0 -> 255 representing -64 dB to 63 dB with a step size 0.5 dB, 0xff will be set if this field is invalid.
+} nfapi_nr_srs_indication_reported_symbol_resource_block_t;
+
+typedef struct {
+ uint16_t num_rbs; // Number of PRBs to be reported for this SRS PDU. Value: 0 -> 272.
nfapi_nr_srs_indication_reported_symbol_resource_block_t* rb_list;
-}nfapi_nr_srs_indication_reported_symbol_t;
+} nfapi_nr_srs_indication_reported_symbol_t;
-#define NFAPI_NR_SRS_IND_MAX_PDU 100
-typedef struct
-{
- uint32_t handle;
- uint16_t rnti;
- uint16_t timing_advance;
- uint8_t num_symbols;
- uint8_t wide_band_snr;
- uint8_t num_reported_symbols;
+typedef struct {
+ uint32_t handle; // The handle passed to the PHY in the the UL_TTI.request SRS PDU.
+ uint16_t rnti; // The RNTI passed to the PHY in the UL_TTI.request SRS PDU. Value: 1 -> 65535.
+ uint16_t timing_advance; // Timing advance TA measured for the UE [TS 38.213, Section 4.2]. NTA_new = NTA_old + (TA − 31) * 16 * 64 / (2^u). Value: 0 -> 63. 0xffff should be set if this field is invalid.
+ uint8_t num_symbols; // Number of symbols for SRS. Value: 1 -> 4. If a PHY does not report for individual symbols then this parameter should be set to 1.
+ uint8_t wide_band_snr; // SNR value in dB measured within configured SRS bandwidth on each symbol. Value: 0 -> 255 representing -64 dB to 63 dB with a step size 0.5 dB. 0xff will be set if this field is invalid.
+ uint8_t num_reported_symbols; // Number of symbols reported in this message. This allows PHY to report individual symbols or aggregated symbols where this field will be set to 1. Value: 1 -> 4.
nfapi_nr_srs_indication_reported_symbol_t* reported_symbol_list;
+} nfapi_nr_srs_indication_pdu_t;
-}nfapi_nr_srs_indication_pdu_t;
-
-typedef struct
-{
+typedef struct {
nfapi_p7_message_header_t header;
- uint16_t sfn;
- uint16_t slot;
- uint8_t number_of_pdus;
+ uint16_t sfn; // SFN. Value: 0 -> 1023
+ uint16_t slot; // Slot. Value: 0 -> 159
+ uint8_t number_of_pdus; // Number of PDUs included in this message. Value: 0 -> 255
nfapi_nr_srs_indication_pdu_t* pdu_list;
-
} nfapi_nr_srs_indication_t;