From 7b3fe853584067d5bcae80752271a17466f83675 Mon Sep 17 00:00:00 2001
From: Sandeep Kumar <ee13b1025@iith.ac.in>
Date: Fri, 3 Jun 2016 16:23:22 +0200
Subject: [PATCH] fixed file name, updated the IF4 frame structure, added dummy
functions for frame generation
---
openair1/PHY/LTE_TRANSPORT/if4_tools.c | 114 +++++++++++++++++++++++++
openair1/PHY/LTE_TRANSPORT/if4_tools.h | 65 +++++++++-----
openair1/PHY/LTE_TRANSPORT/if4tools.c | 47 ----------
3 files changed, 160 insertions(+), 66 deletions(-)
create mode 100644 openair1/PHY/LTE_TRANSPORT/if4_tools.c
delete mode 100644 openair1/PHY/LTE_TRANSPORT/if4tools.c
diff --git a/openair1/PHY/LTE_TRANSPORT/if4_tools.c b/openair1/PHY/LTE_TRANSPORT/if4_tools.c
new file mode 100644
index 0000000000..a3e6d75ac8
--- /dev/null
+++ b/openair1/PHY/LTE_TRANSPORT/if4_tools.c
@@ -0,0 +1,114 @@
+/*******************************************************************************
+ OpenAirInterface
+ Copyright(c) 1999 - 2014 Eurecom
+
+ OpenAirInterface is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+
+ OpenAirInterface is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with OpenAirInterface.The full GNU General Public License is
+ included in this distribution in the file called "COPYING". If not,
+ see <http://www.gnu.org/licenses/>.
+
+ Contact Information
+ OpenAirInterface Admin: openair_admin@eurecom.fr
+ OpenAirInterface Tech : openair_tech@eurecom.fr
+ OpenAirInterface Dev : openair4g-devel@lists.eurecom.fr
+
+ Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
+
+ *******************************************************************************/
+
+/*! \file PHY/LTE_TRANSPORT/if4_tools.c
+* \brief
+* \author Mauricio Gunther, Raymond Knopp, S. Sandeep Kumar
+* \date 2016
+* \version 0.1
+* \company Eurecom
+* \email: knopp@eurecom.fr, ee13b1025@iith.ac.in
+* \note
+* \warning
+*/
+
+#include "PHY/LTE_TRANSPORT/if4_tools.h"
+
+/*
+typedef struct data_block_type {
+
+} data_block;
+*/
+
+/*
+void allocate_data_block(long *data_block ,int length){
+ data_block = malloc(length*sizeof(long));
+}
+*/
+
+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;
+ int i,j;
+
+ float *data_block = malloc(length*sizeof(long));
+
+
+ // find number of consecutive non zero in values in symbol
+ // NrOfNonZeroValues
+
+ // how many values does the atan function output?
+
+ for(i = 0; i <= fp->symbols_per_tti; i++){
+ for(j = 0; j < NrOfNonZeroValues; j=j+2){
+
+ 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]);
+ // use memset?
+ }
+
+ }
+
+/*
+memset(&eNB->common_vars.txdataF[0][aa][subframe*fp->ofdm_symbol_size*(fp->symbols_per_tti)],
+ 0,fp->ofdm_symbol_size*(fp->symbols_per_tti)*sizeof(int32_t));
+ }
+ */
+
+}
+
+void recv_IF4( ) {
+
+}
+
+IF4_dl_packet gen_IF4_dl_packet( ) {
+
+ IF4_dl_packet dl_packet;
+
+ return dl_packet;
+}
+
+IF4_ul_packet gen_IF4_ul_packet( ) {
+
+ IF4_ul_packet ul_packet;
+
+ return ul_packet;
+}
+
+IF4_prach_packet gen_IF4_prach_packet( ) {
+
+ IF4_prach_packet prach_packet;
+
+ return prach_packet;
+}
diff --git a/openair1/PHY/LTE_TRANSPORT/if4_tools.h b/openair1/PHY/LTE_TRANSPORT/if4_tools.h
index 977e5f36c5..363dbf444d 100644
--- a/openair1/PHY/LTE_TRANSPORT/if4_tools.h
+++ b/openair1/PHY/LTE_TRANSPORT/if4_tools.h
@@ -56,7 +56,15 @@ struct IF4_frame_status {
uint32_t rsvd:2;
};
-/// IF4 PRACH Configuration (32 bits)
+/// IF4 Antenna Gain
+struct IF4_gain {
+ /// Reserved
+ uint32_t rsvd:10;
+ /// FFT Exponent Output
+ uint32_t exponent:6;
+};
+
+/// IF4 LTE PRACH Configuration (32 bits)
struct IF4_lte_prach_conf {
/// Reserved
uint32_t rsvd:3;
@@ -69,14 +77,6 @@ struct IF4_lte_prach_conf {
/// FFT Exponent Output
uint32_t exponent:6;
};
-
-/// IF4 Antenna Gain
-struct IF4_gain {
- /// Reserved
- uint32_t rsvd:10;
- /// FFT Exponent Output
- uint32_t exponent:6;
-};
struct IF4_dl_packet {
/// Destination Address
@@ -84,17 +84,17 @@ struct IF4_dl_packet {
/// Source Address
/// Type
-
+ uint16_t type;
/// Sub-Type
-
+ uint16_t sub_type;
/// Reserved
-
+ uint32_t rsvd;
/// Frame Status
-
+ IF4_frame_status frame_status;
/// Data Blocks
/// Frame Check Sequence
-
+ uint32_t fcs;
};
struct IF4_ul_packet {
@@ -103,22 +103,29 @@ struct IF4_ul_packet {
/// Source Address
/// Type
-
+ uint16_t type;
/// Sub-Type
-
+ uint16_t sub_type;
/// Reserved
-
+ uint32_t rsvd;
/// Frame Status
-
+ IF4_frame_status frame_status;
/// Gain 0
+ IF4_gain gain0;
/// Gain 1
+ IF4_gain gain1;
/// Gain 2
+ IF4_gain gain2;
/// Gain 3
+ IF4_gain gain3;
/// Gain 4
+ IF4_gain gain4;
/// Gain 5
+ IF4_gain gain5;
/// Gain 6
+ IF4_gain gain6;
/// Gain 7
-
+ IF4_gain gain7;
/// Data Blocks
/// Frame Check Sequence
@@ -126,10 +133,30 @@ struct IF4_ul_packet {
};
struct IF4_prach_packet {
+ /// Destination Address
+ /// Source Address
+ /// Type
+ uint16_t type;
+ /// Sub-Type
+ uint16_t sub_type;
+ /// Reserved
+ uint32_t rsvd;
+ /// LTE Prach Configuration
+ IF4_lte_prach_conf prach_conf;
+ /// Prach Data Block (one antenna)
+
+ /// Frame Check Sequence
+ uint32_t fcs;
};
+IF4_dl_packet gen_IF4_dl_packet();
+
+IF4_ul_packet gen_IF4_ul_packet();
+
+IF4_prach_packet gen_IF4_prach_packet();
+
void send_IF4(PHY_VARS_eNB *eNB, int subframe);
void recv_IF4(PHY_VARS_eNB *eNB, int subframe);
diff --git a/openair1/PHY/LTE_TRANSPORT/if4tools.c b/openair1/PHY/LTE_TRANSPORT/if4tools.c
deleted file mode 100644
index 70e598e2a1..0000000000
--- a/openair1/PHY/LTE_TRANSPORT/if4tools.c
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
-typedef struct data_block_type {
-
-} data_block;
-*/
-
-/*
-void allocate_data_block(long *data_block ,int length){
- data_block = malloc(length*sizeof(long));
-}
-*/
-
-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;
- int i,j;
-
- float *data_block = malloc(length*sizeof(long));
-
-
- // find number of consecutive non zero in values in symbol
- // NrOfNonZeroValues
-
- // how many values does the atan function output?
-
- for(i = 0; i <= fp->symbols_per_tti; i++){
- for(j = 0; j < NrOfNonZeroValues; j=j+2){
-
- 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]);
- // use memset?
- }
-
- }
-
-/*
-memset(&eNB->common_vars.txdataF[0][aa][subframe*fp->ofdm_symbol_size*(fp->symbols_per_tti)],
- 0,fp->ofdm_symbol_size*(fp->symbols_per_tti)*sizeof(int32_t));
- }
- */
-
-}
--
GitLab