From d51d5deeaca2378cea73758a1e05d6aa519eabf0 Mon Sep 17 00:00:00 2001
From: "S. Sandeep Kumar" <ee13b1025@iith.ac.in>
Date: Wed, 8 Jun 2016 04:00:13 +0530
Subject: [PATCH] fix some structures and add more details to if4 functions
---
openair1/PHY/LTE_TRANSPORT/if4_tools.c | 209 +++++++++++--------------
openair1/PHY/LTE_TRANSPORT/if4_tools.h | 55 ++++---
2 files changed, 129 insertions(+), 135 deletions(-)
diff --git a/openair1/PHY/LTE_TRANSPORT/if4_tools.c b/openair1/PHY/LTE_TRANSPORT/if4_tools.c
index a42eae8798..e75a8675e9 100644
--- a/openair1/PHY/LTE_TRANSPORT/if4_tools.c
+++ b/openair1/PHY/LTE_TRANSPORT/if4_tools.c
@@ -45,153 +45,132 @@
#include "PHY/LTE_TRANSPORT/if4_tools.h"
#endif
-// Define how data blocks are stored and transferred
-
-//void send_IF4(PHY_VARS_eNB *eNB, int subframe){
- //eNB_proc_t *proc = &eNB->proc;
- //int frame=proc->frame_tx;
- //int subframe=proc->subframe_tx;
-
- //LTE_DL_FRAME_PARMS *fp=&eNB->frame_parms;
-
- //uint32_t i,j;
- //float *data_block = malloc(length*sizeof(long));
-
- // Generate IF4 packet (for now DL) with frame status information
- //dl_packet = gen_IF4_dl_packet( /* ADD INFO and data_block pointer */ );
+void send_IF4(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc) {
+ int frame = proc->frame_tx;
+ int subframe = proc->subframe_tx;
+ LTE_DL_FRAME_PARMS *fp = &eNB->frame_parms;
- //for(i=0; i<fp->symbols_per_tti; i++) {
-
- // Do compression of the two parts and generate data blocks
-
- //symbol = eNB->common_vars.txdataF[0][0 /*antenna number*/][subframe*fp->ofdm_symbol_size*(fp->symbols_per_tti)]
- //data_block[j] = Atan(symbol[fp->ofmd_symbol_size - NrOfNonZeroValues + j -1])<<16 + Atan(symbol[fp->ofmd_symbol_size - NrOfNonZeroValues + j]);
- //data_block[j+NrOfNonZeroValues] = Atan(subframe[i][j+1])<<16 + Atan(subframe[i][j+2]);
-
- // Set data blocks and update subframe no./other information to generated packet
-
-
- // Write the packet(s) to the fronthaul
-
- //}
+ uint16_t i;
+
+ float_t data_block_length = 1200*(fp->ofdm_symbol_size/2048);
+ uint16_t *data_block = (uint16_t*)malloc(data_block_length*sizeof(uint16_t));
+
+ // Caller: RCC - DL *** handle RRU case - UL and PRACH ***
+ if (eNB->node_function == NGFI_RCC_IF4) {
+ IF4_dl_packet_t *dl_packet = (IF4_dl_packet_t*)malloc(sizeof_IF4_dl_packet_t);
+ gen_IF4_dl_packet(dl_packet, proc);
+
+ dl_packet->data_block = data_block;
+
+ for(i=0; i<fp->symbols_per_tti; i++) {
+
+ //Do compression of the two parts and generate data blocks
+
+ //symbol = eNB->common_vars.txdataF[0][0 /*antenna number*/][subframe*fp->ofdm_symbol_size*(fp->symbols_per_tti)]
+ //data_block[j] = Atan(symbol[fp->ofmd_symbol_size - NrOfNonZeroValues + j -1])<<16 + Atan(symbol[fp->ofmd_symbol_size - NrOfNonZeroValues + j]);
+ //data_block[j+NrOfNonZeroValues] = Atan(subframe[i][j+1])<<16 + Atan(subframe[i][j+2]);
+
+ // Update information in generated packet
+ dl_packet->frame_status.sym_num = i;
+
+ // Write the packet(s) to the fronthaul
+
+ }
+ }else {
+ IF4_ul_packet_t *ul_packet = (IF4_ul_packet_t*)malloc(sizeof_IF4_ul_packet_t);
+ gen_IF4_ul_packet(ul_packet, proc);
+
+ ul_packet->data_block = data_block;
+
+ for(i=0; i<fp->symbols_per_tti; i++) {
+
+ //Do compression of the two parts and generate data blocks
+
+ //symbol = eNB->common_vars.txdataF[0][0 /*antenna number*/][subframe*fp->ofdm_symbol_size*(fp->symbols_per_tti)]
+ //data_block[j] = Atan(symbol[fp->ofmd_symbol_size - NrOfNonZeroValues + j -1])<<16 + Atan(symbol[fp->ofmd_symbol_size - NrOfNonZeroValues + j]);
+ //data_block[j+NrOfNonZeroValues] = Atan(subframe[i][j+1])<<16 + Atan(subframe[i][j+2]);
+
+ // Update information in generated packet
+ ul_packet->frame_status.sym_num = i;
+
+ // Write the packet(s) to the fronthaul
+
+ }
+ }
-//}
+}
-void recv_IF4( /* ADD INFO and data_block pointer */ ) {
+void recv_IF4(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc) {
// Read packet(s) from the fronthaul
// Apply reverse processing - decompression
// Generate and return the OFDM symbols (txdataF)
-
+
+ // Caller: RRU - DL *** handle RCC case - UL and PRACH ***
+
}
-struct IF4_dl_packet gen_IF4_dl_packet( /* ADD INFO and data_block pointer */ ) {
- struct IF4_dl_packet dl_packet;
-
- // Set destination and source address
-
+void gen_IF4_dl_packet(IF4_dl_packet_t *dl_packet, eNB_rxtx_proc_t *proc) {
// Set Type and Sub-Type
- dl_packet.type = 0x080A;
- dl_packet.sub_type = 0x0020;
+ dl_packet->type = 0x080A;
+ dl_packet->sub_type = 0x0020;
// Leave reserved as it is
- //dl_packet.rsvd = ;
+ dl_packet->rsvd = 0;
// Set frame status
- dl_packet.frame_status.ant_num = 0;
- dl_packet.frame_status.ant_start = 0;
- dl_packet.frame_status.rf_num = 0;
- dl_packet.frame_status.sf_num = 0;
- dl_packet.frame_status.sym_num = 0;
- //dl_packet.frame_status.rsvd = ;
-
- // Set data blocks if sent
- //if (data_block != NULL) {
- //
- //} else {
- //
- //}
-
+ dl_packet->frame_status.ant_num = 0;
+ dl_packet->frame_status.ant_start = 0;
+ dl_packet->frame_status.rf_num = proc->frame_tx;
+ dl_packet->frame_status.sf_num = proc->subframe_tx;
+ dl_packet->frame_status.sym_num = 0;
+ dl_packet->frame_status.rsvd = 0;
+
// Set frame check sequence
- dl_packet.fcs = 0;
-
- return dl_packet;
+ dl_packet->fcs = 0;
}
-struct IF4_ul_packet gen_IF4_ul_packet( /* ADD INFO and data_block pointer */ ) {
- struct IF4_ul_packet ul_packet;
-
- // Set destination and source address
-
+void gen_IF4_ul_packet(IF4_ul_packet_t *ul_packet, eNB_rxtx_proc_t *proc) {
// Set Type and Sub-Type
- ul_packet.type = 0x080A;
- ul_packet.sub_type = 0x0019;
+ ul_packet->type = 0x080A;
+ ul_packet->sub_type = 0x0019;
// Leave reserved as it is
- //ul_packet.rsvd = ;
+ ul_packet->rsvd = 0;
// Set frame status
- ul_packet.frame_status.ant_num = 0;
- ul_packet.frame_status.ant_start = 0;
- ul_packet.frame_status.rf_num = 0;
- ul_packet.frame_status.sf_num = 0;
- ul_packet.frame_status.sym_num = 0;
- //ul_packet.frame_status.rsvd = ;
+ ul_packet->frame_status.ant_num = 0;
+ ul_packet->frame_status.ant_start = 0;
+ ul_packet->frame_status.rf_num = proc->frame_rx;
+ ul_packet->frame_status.sf_num = proc->subframe_rx;
+ ul_packet->frame_status.sym_num = 0;
+ ul_packet->frame_status.rsvd = 0;
+
+ // Set antenna specific gain *** set other antenna gain ***
+ ul_packet->gain0.exponent = 0;
+ ul_packet->gain0.rsvd = 0;
- // Set antenna specific gain
- ul_packet.gain0.exponent = 0;
- //ul_packet.gain0.rsvd = ;
-
- // Set data blocks if sent
- //if (data_block != NULL) {
- //
- //} else {
- //
- //}
-
// Set frame check sequence
- ul_packet.fcs = 0;
-
- return ul_packet;
+ ul_packet->fcs = 0;
}
-struct IF4_prach_packet gen_IF4_prach_packet( /* ADD INFO and data_block pointer */ ) {
- struct IF4_prach_packet prach_packet;
-
- // Set destination and source address
-
+void gen_IF4_prach_packet(IF4_prach_packet_t *prach_packet, eNB_rxtx_proc_t *proc) {
// Set Type and Sub-Type
- prach_packet.type = 0x080A;
- prach_packet.sub_type = 0x0021;
+ prach_packet->type = 0x080A;
+ prach_packet->sub_type = 0x0021;
// Leave reserved as it is
- //prach_packet.rsvd = ;
+ prach_packet->rsvd = 0;
// Set LTE Prach configuration
- //prach_packet.prach_conf.rsvd = ;
- prach_packet.prach_conf.ant = 0;
- prach_packet.prach_conf.rf_num = 0;
- prach_packet.prach_conf.sf_num = 0;
- prach_packet.prach_conf.exponent = 0;
-
- // Set data blocks if sent
- //if (data_block != NULL) {
- //
- //} else {
- //
- //}
-
+ prach_packet->prach_conf.rsvd = 0;
+ prach_packet->prach_conf.ant = 0;
+ prach_packet->prach_conf.rf_num = proc->frame_rx;
+ prach_packet->prach_conf.sf_num = proc->subframe_rx;
+ prach_packet->prach_conf.exponent = 0;
+
// Set frame check sequence
- prach_packet.fcs = 0;
-
- return prach_packet;
+ prach_packet->fcs = 0;
}
-
-int main(){
-
- uint32_t i=0;
-
- return 0;
-}
diff --git a/openair1/PHY/LTE_TRANSPORT/if4_tools.h b/openair1/PHY/LTE_TRANSPORT/if4_tools.h
index c5bb46576c..819aca58d6 100644
--- a/openair1/PHY/LTE_TRANSPORT/if4_tools.h
+++ b/openair1/PHY/LTE_TRANSPORT/if4_tools.h
@@ -54,6 +54,9 @@ struct IF4_frame_status {
uint32_t rsvd:2;
};
+typedef struct IF4_frame_status IF4_frame_status_t;
+#define sizeof_IF4_frame_status_t 4
+
/// IF4 Antenna Gain (16 bits)
struct IF4_gain {
/// Reserved
@@ -62,6 +65,9 @@ struct IF4_gain {
uint16_t exponent:6;
};
+typedef struct IF4_gain IF4_gain_t;
+#define sizeof_IF_gain_t 2
+
/// IF4 LTE PRACH Configuration (32 bits)
struct IF4_lte_prach_conf {
/// Reserved
@@ -76,6 +82,9 @@ struct IF4_lte_prach_conf {
uint32_t exponent:6;
};
+typedef struct IF4_lte_prach_conf IF4_lte_prach_conf_t;
+#define sizeof_IF4_lte_prach_conf_t 4
+
struct IF4_dl_packet {
/// Destination Address
@@ -88,13 +97,15 @@ struct IF4_dl_packet {
/// Reserved
uint32_t rsvd;
/// Frame Status
- struct IF4_frame_status frame_status;
+ IF4_frame_status_t frame_status;
/// Data Blocks
-
+ uint16_t *data_block;
/// Frame Check Sequence
uint32_t fcs;
};
+typedef struct IF4_dl_packet IF4_dl_packet_t;
+#define sizeof_IF4_dl_packet_t 18
struct IF4_ul_packet {
/// Destination Address
@@ -108,29 +119,32 @@ struct IF4_ul_packet {
/// Reserved
uint32_t rsvd;
/// Frame Status
- struct IF4_frame_status frame_status;
+ IF4_frame_status_t frame_status;
/// Gain 0
- struct IF4_gain gain0;
+ IF4_gain_t gain0;
/// Gain 1
- struct IF4_gain gain1;
+ IF4_gain_t gain1;
/// Gain 2
- struct IF4_gain gain2;
+ IF4_gain_t gain2;
/// Gain 3
- struct IF4_gain gain3;
+ IF4_gain_t gain3;
/// Gain 4
- struct IF4_gain gain4;
+ IF4_gain_t gain4;
/// Gain 5
- struct IF4_gain gain5;
+ IF4_gain_t gain5;
/// Gain 6
- struct IF4_gain gain6;
+ IF4_gain_t gain6;
/// Gain 7
- struct IF4_gain gain7;
+ IF4_gain_t gain7;
/// Data Blocks
-
+ uint16_t *data_block;
/// Frame Check Sequence
uint32_t fcs;
};
+typedef struct IF4_ul_packet IF4_ul_packet_t;
+#define sizeof_IF4_ul_packet_t 34
+
struct IF4_prach_packet {
/// Destination Address
@@ -143,21 +157,22 @@ struct IF4_prach_packet {
/// Reserved
uint32_t rsvd;
/// LTE Prach Configuration
- struct IF4_lte_prach_conf prach_conf;
+ IF4_lte_prach_conf_t prach_conf;
/// Prach Data Block (one antenna)
-
+ uint16_t *data_block;
/// Frame Check Sequence
uint32_t fcs;
};
-// Needs to be checked
+typedef struct IF4_prach_packet IF4_prach_packet_t;
+#define sizeof_IF4_prach_packet_t 18
-struct IF4_dl_packet gen_IF4_dl_packet();
+void gen_IF4_dl_packet(IF4_dl_packet_t*, eNB_rxtx_proc_t*);
-struct IF4_ul_packet gen_IF4_ul_packet();
+void gen_IF4_ul_packet(IF4_ul_packet_t*, eNB_rxtx_proc_t*);
-struct IF4_prach_packet gen_IF4_prach_packet();
+void gen_IF4_prach_packet(IF4_prach_packet_t*, eNB_rxtx_proc_t*);
-void send_IF4( /* ADD INFO */ );
+void send_IF4(PHY_VARS_eNB*, eNB_rxtx_proc_t*);
-void recv_IF4( /* ADD INFO */ );
+void recv_IF4(PHY_VARS_eNB*, eNB_rxtx_proc_t*);
--
GitLab