Merge branch 'enhancement-10-harmony' of...

Merge branch 'enhancement-10-harmony' of https://gitlab.eurecom.fr/oai/openairinterface5g into enhancement-10-harmony

Conflicts:
	targets/RT/USER/lte-softmodem.c

cmake_targets/CMakeLists.txt

@@ -963,7 +963,7 @@ set(PHY_SRC
   ${OPENAIR1_DIR}/PHY/LTE_TRANSPORT/print_stats.c
   ${OPENAIR1_DIR}/PHY/LTE_TRANSPORT/initial_sync.c
   ${OPENAIR1_DIR}/PHY/LTE_TRANSPORT/if4_tools.c
-  ${OPENAIR1_DIR}/PHY/LTE_TRANSPORT/if5_mobipass_tools.c
+  ${OPENAIR1_DIR}/PHY/LTE_TRANSPORT/if5_tools.c
   ${OPENAIR1_DIR}/PHY/MODULATION/ofdm_mod.c
   ${OPENAIR1_DIR}/PHY/MODULATION/slot_fep.c
   ${OPENAIR1_DIR}/PHY/MODULATION/slot_fep_mbsfn.c

cmake_targets/build_oai

@@ -296,9 +296,6 @@ function main() {
       if [ "$HW" = "None" -a  "$TP" = "None" ] ; then
 	  echo_fatal "Define a local radio head (e.g. -w EXMIMO) or a transport protocol (e.g. -t ETHERNET) to communicate with a remote radio head!"
       fi
-      if [ "$HW" != "None" -a  "$TP" != "None" ] ; then
-	  echo_fatal "Currently eNB  can not support simultaniously local and remote radio heads!!"
-      fi      
       if [ "$HW" = "None" ] ; then 
 	  echo_info "No radio head has been selected (HW set to $HW)"	
       fi

openair1/PHY/LTE_TRANSPORT/if4_tools.h

@@ -38,7 +38,6 @@
 * \warning
 */
 
-#include <stdint.h>
 #include "PHY/defs.h"
 
 /// Macro for IF4 packet type
@@ -57,7 +56,7 @@ struct IF4_header {
   /// Frame Status
   uint32_t frame_status;
 
-};
+} __attribute__ ((__packed__));
 
 typedef struct IF4_header IF4_header_t;
 #define sizeof_IF4_header_t 12 
@@ -71,3 +70,5 @@ void gen_IF4_prach_header(IF4_header_t*, int, int);
 void send_IF4(PHY_VARS_eNB*, int, int, uint16_t, int);
 
 void recv_IF4(PHY_VARS_eNB*, int*, int*, uint16_t*, uint32_t*);
+
+void malloc_IF4_buffer(PHY_VARS_eNB*);

openair1/PHY/LTE_TRANSPORT/if5_mobipass_tools.c

-
-#include <stdint.h>
-
-#include "PHY/defs.h"
-#include "PHY/LTE_TRANSPORT/if5_mobipass_tools.h"
-
-#include "targets/ARCH/ETHERNET/USERSPACE/LIB/if_defs.h"
-
-
-uint8_t send_IF5(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc, uint8_t init_seq) {      
-  
-  uint8_t seqno=init_seq;
-  void *txp[2]; 
-  void *tx_buffer=NULL;
-  __m128i *data_block=NULL,*main_data_block=NULL;
-
-  __m128i *txp128;
-  __m128i t0, t1;
-
-  uint16_t packet_id=0, i;
-  uint16_t db_fulllength = 640;
-
-  tx_buffer = memalign(16, MAC_HEADER_SIZE_BYTES + sizeof_IF5_mobipass_header_t + db_fulllength*sizeof(int16_t));
-  IF5_mobipass_header_t *header = (IF5_mobipass_header_t *)(tx_buffer + MAC_HEADER_SIZE_BYTES);
-  data_block = (__m128i *)(tx_buffer + MAC_HEADER_SIZE_BYTES + sizeof_IF5_mobipass_header_t + 4);
-  main_data_block = data_block;
-  
-  header->flags = 0;
-  header->fifo_status = 0;  
-  header->ack = 0;
-  header->seqno = seqno;
-  header->rsvd = 0;  
-
-  txp[0] = (void*)&eNB->common_vars.txdata[0][0][proc->subframe_tx*eNB->frame_parms.samples_per_tti];
-  txp128 = (__m128i *) txp[0];
-    		    
-  for (packet_id=0; packet_id<(7680*2)/640; packet_id++) {
-    header->time_stamp = proc->timestamp_tx + packet_id*640; 
-    data_block = main_data_block; 
-
-    for (i=0; i<db_fulllength>>3; i+=2) {
-      t0 = _mm_srli_epi16(*txp128++, 4);
-      t1 = _mm_srli_epi16(*txp128++, 4);   
-      
-      *data_block++ = _mm_packs_epi16(t0, t1);     
-    }
-    
-    // Write the packet to the fronthaul
-    if ((eNB->ifdevice.trx_write_func(&eNB->ifdevice,
-                                      packet_id,
-                                      &tx_buffer,
-                                      db_fulllength,
-                                      1,
-                                      IF5_MOBIPASS)) < 0) {
-      perror("ETHERNET write for IF5_MOBIPASS\n");
-    }
-
-    header->seqno += 1;    
-  }
-  
-  seqno = header->seqno;
-  free(tx_buffer);
-  return(seqno);  		    
-}
-

openair1/PHY/LTE_TRANSPORT/if5_mobipass_tools.h

-
-#include <stdint.h>
-#include "PHY/defs.h"
-
-#define IF5_MOBIPASS 0x0050
-
-struct IF5_mobipass_header {  
-  /// Type
-  uint16_t flags; 
-  /// Sub-Type
-  uint16_t fifo_status;
-  /// Reserved
-  uint8_t seqno;
-  
-  uint8_t ack;
-
-  uint32_t rsvd;
-  /// Frame Status
-  uint32_t time_stamp;
-
-} __attribute__ ((__packed__));
-
-typedef struct IF5_mobipass_header IF5_mobipass_header_t;
-#define sizeof_IF5_mobipass_header_t 14
-
-uint8_t send_IF5(PHY_VARS_eNB*, eNB_rxtx_proc_t*, uint8_t);

openair1/PHY/LTE_TRANSPORT/if5_tools.c

+/*******************************************************************************
+    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/if5_tools.c
+* \brief 
+* \author S. Sandeep Kumar, Raymond Knopp
+* \date 2016
+* \version 0.1
+* \company Eurecom
+* \email: ee13b1025@iith.ac.in, knopp@eurecom.fr 
+* \note
+* \warning
+*/
+
+#include "PHY/defs.h"
+
+#include "targets/ARCH/ETHERNET/USERSPACE/LIB/if_defs.h"
+
+
+void send_IF5(PHY_VARS_eNB *eNB, openair0_timestamp proc_timestamp, int subframe, uint8_t *seqno, uint16_t packet_type) {      
+  
+  LTE_DL_FRAME_PARMS *fp=&eNB->frame_parms;
+  void *txp[fp->nb_antennas_tx], *rxp[fp->nb_antennas_rx]; 
+  void *tx_buffer=NULL;
+
+  uint16_t packet_id=0, i=0;
+  
+  if (packet_type == IF5_RRH_GW_DL) {
+    unsigned int spp_eth  = eNB->ifdevice.openair0_cfg->samples_per_packet;
+    unsigned int spsf     = eNB->ifdevice.openair0_cfg->samples_per_frame/10;
+    
+    for (i=0; i < fp->nb_antennas_tx; i++)
+      txp[i] = (void*)&eNB->common_vars.txdata[0][i][subframe*fp->samples_per_tti];
+    
+    for (packet_id=0; packet_id < spsf / spp_eth; packet_id++) {
+      for (i=0; i < fp->nb_antennas_tx; i++)
+        txp[i] += packet_id*spp_eth;
+    
+      eNB->ifdevice.trx_write_func(&eNB->ifdevice,
+                                   (proc_timestamp + packet_id*spp_eth),
+                                   txp,
+                                   spp_eth,
+                                   fp->nb_antennas_tx,
+                                   0);
+    }
+    
+  } else if (packet_type == IF5_RRH_GW_UL) {
+    unsigned int spp_eth  = eNB->ifdevice.openair0_cfg->samples_per_packet;
+    unsigned int spsf     = eNB->ifdevice.openair0_cfg->samples_per_frame/10;
+    
+    for (i=0; i < fp->nb_antennas_rx; i++)
+      rxp[i] = (void*)&eNB->common_vars.rxdata[0][i][subframe*fp->samples_per_tti];
+    
+    for (packet_id=0; packet_id < spsf / spp_eth; packet_id++) {
+      for (i=0; i < fp->nb_antennas_rx; i++)
+        rxp[i] += packet_id*spp_eth;
+
+      eNB->ifdevice.trx_write_func(&eNB->ifdevice,
+                                   (proc_timestamp + packet_id*spp_eth),
+                                   rxp,
+                                   spp_eth,
+                                   fp->nb_antennas_rx,
+                                   0);
+    }    
+    
+  } else if (packet_type == IF5_MOBIPASS) {    
+    uint16_t db_fulllength=640;
+    
+    __m128i *data_block=NULL, *data_block_head=NULL;
+
+    __m128i *txp128;
+    __m128i t0, t1;
+
+    tx_buffer = memalign(16, MAC_HEADER_SIZE_BYTES + sizeof_IF5_mobipass_header_t + db_fulllength*sizeof(int16_t));
+    IF5_mobipass_header_t *header = (IF5_mobipass_header_t *)(tx_buffer + MAC_HEADER_SIZE_BYTES);
+    data_block_head = (__m128i *)(tx_buffer + MAC_HEADER_SIZE_BYTES + sizeof_IF5_mobipass_header_t + 4);
+    
+    header->flags = 0;
+    header->fifo_status = 0;  
+    header->seqno = *seqno;
+    header->ack = 0;
+    header->word0 = 0;  
+    
+    txp[0] = (void*)&eNB->common_vars.txdata[0][0][subframe*eNB->frame_parms.samples_per_tti];
+    txp128 = (__m128i *) txp[0];
+              
+    for (packet_id=0; packet_id<(fp->samples_per_tti*2)/db_fulllength; packet_id++) {
+      header->time_stamp = proc_timestamp + packet_id*db_fulllength; 
+      data_block = data_block_head; 
+    
+      for (i=0; i<db_fulllength>>3; i+=2) {
+        t0 = _mm_srli_epi16(*txp128++, 4);
+        t1 = _mm_srli_epi16(*txp128++, 4);   
+        
+        *data_block++ = _mm_packs_epi16(t0, t1);     
+      }
+      
+      // Write the packet to the fronthaul
+      if ((eNB->ifdevice.trx_write_func(&eNB->ifdevice,
+                                        packet_id,
+                                        &tx_buffer,
+                                        db_fulllength,
+                                        1,
+                                        IF5_MOBIPASS)) < 0) {
+        perror("ETHERNET write for IF5_MOBIPASS\n");
+      }
+    
+      header->seqno += 1;    
+    }  
+    *seqno = header->seqno;
+    
+  } else {    
+    AssertFatal(1==0, "send_IF5 - Unknown packet_type %x", packet_type);     
+  }  
+  
+  free(tx_buffer);
+  return;  		    
+}
+
+
+void recv_IF5(PHY_VARS_eNB *eNB, openair0_timestamp *proc_timestamp, int subframe, uint16_t packet_type) {
+
+  LTE_DL_FRAME_PARMS *fp=&eNB->frame_parms;
+  void *txp[fp->nb_antennas_tx], *rxp[fp->nb_antennas_rx]; 
+  void *rx_buffer=NULL;
+
+  uint16_t packet_id=0, i=0;
+  
+  if (packet_type == IF5_RRH_GW_DL) {
+    unsigned int spp_eth  = eNB->ifdevice.openair0_cfg->samples_per_packet;
+    unsigned int spsf     = eNB->ifdevice.openair0_cfg->samples_per_frame/10;
+    
+    openair0_timestamp timestamp[spsf / spp_eth];
+    
+    for (i=0; i < fp->nb_antennas_tx; i++)
+      txp[i] = (void*)&eNB->common_vars.txdata[0][i][subframe*fp->samples_per_tti];
+    
+    for (packet_id=0; packet_id < spsf / spp_eth; packet_id++) {
+      for (i=0; i < fp->nb_antennas_tx; i++)
+        txp[i] += packet_id*spp_eth;
+
+      eNB->ifdevice.trx_read_func(&eNB->ifdevice,
+                                  &timestamp[packet_id],
+                                  txp,
+                                  spp_eth,
+                                  fp->nb_antennas_tx);
+    }
+    
+    *proc_timestamp = timestamp[0];
+    
+  } else if (packet_type == IF5_RRH_GW_UL) {
+    unsigned int spp_eth  = eNB->ifdevice.openair0_cfg->samples_per_packet;
+    unsigned int spsf     = eNB->ifdevice.openair0_cfg->samples_per_frame/10;
+    
+    openair0_timestamp timestamp[spsf / spp_eth];
+    
+    for (i=0; i < fp->nb_antennas_rx; i++)
+      rxp[i] = (void*)&eNB->common_vars.rxdata[0][i][subframe*fp->samples_per_tti];
+    
+    for (packet_id=0; packet_id < spsf / spp_eth; packet_id++) {
+      for (i=0; i < fp->nb_antennas_tx; i++)
+        rxp[i] += packet_id*spp_eth;
+
+      eNB->ifdevice.trx_read_func(&eNB->ifdevice,
+                                  &timestamp[packet_id],
+                                  rxp,
+                                  spp_eth,
+                                  fp->nb_antennas_rx);
+    }
+
+    *proc_timestamp = timestamp[0];
+      
+  } else if (packet_type == IF5_MOBIPASS) {
+    
+    
+  } else {
+    AssertFatal(1==0, "recv_IF5 - Unknown packet_type %x", packet_type);     
+  }  
+  
+  free(rx_buffer);  
+  return;  
+}

openair1/PHY/LTE_TRANSPORT/if5_tools.h

+/*******************************************************************************
+    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/if5_tools.h
+* \brief 
+* \author S. Sandeep Kumar, Raymond Knopp
+* \date 2016
+* \version 0.1
+* \company Eurecom
+* \email: ee13b1025@iith.ac.in, knopp@eurecom.fr 
+* \note
+* \warning
+*/
+
+#include <stdint.h>
+#include "PHY/defs.h"
+
+#define IF5_RRH_GW_DL 0x0022
+#define IF5_RRH_GW_UL 0x0023
+#define IF5_MOBIPASS 0xbffe
+
+struct IF5_mobipass_header {  
+  /// 
+  uint16_t flags; 
+  /// 
+  uint16_t fifo_status;
+  /// 
+  uint8_t seqno;
+  ///
+  uint8_t ack;
+  ///
+  uint32_t word0;
+  /// 
+  uint32_t time_stamp;
+  
+} __attribute__ ((__packed__));
+
+typedef struct IF5_mobipass_header IF5_mobipass_header_t;
+#define sizeof_IF5_mobipass_header_t 14
+
+void send_IF5(PHY_VARS_eNB*, openair0_timestamp, int, uint8_t*, uint16_t);
+
+void recv_IF5(PHY_VARS_eNB*, openair0_timestamp*, int, uint16_t);

openair1/PHY/TOOLS/ALAW/companders.c

-/**
- *	@companders.c - implementation
- *		
- *	@copy Copyright (C) <2012>  <M. A. Chatterjee>
- *  @author M A Chatterjee <deftio [at] deftio [dot] com>
- *	@version 1.01 M. A. Chatterjee, cleaned up naming
- *
- *  This file contains integer math compander functions for analog/audio representations on
- *  embedded systems.  Linear2Alaw derived from Mark Spencer, Sun Microsystem and from 
- *  the A Law specification
- *
- *  @license: 
- *	This software is provided 'as-is', without any express or implied
- *	warranty. In no event will the authors be held liable for any damages
- *	arising from the use of this software.
- *
- *	Permission is granted to anyone to use this software for any purpose,
- *	including commercial applications, and to alter it and redistribute it
- *	freely, subject to the following restrictions:
- *
- *	1. The origin of this software must not be misrepresented; you must not
- *	claim that you wrote the original software. If you use this software
- *	in a product, an acknowledgment in the product documentation would be
- *	appreciated but is not required.
- *
- *	2. Altered source versions must be plainly marked as such, and must not be
- *	misrepresented as being the original software.
- *
- *	3. This notice may not be removed or altered from any source
- *	distribution.
- *
- */
-
-#include "companders.h"
-
-DIO_s8  DIO_LinearToALaw(DIO_s16 sample)
-{ 
-     const DIO_s16 cClip = 32635;
-     const static DIO_s8 LogTable[128] = 
-     { 
-     1,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5, 
-     6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6, 
-     7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 
-     7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7 
-     };
-
-     DIO_s32 sign, exponent, mantissa; 
-     DIO_s8 compandedValue;
-
-     sample = (sample ==-32768) ? -32767 : sample;
-     sign = ((~sample) >> 8) & 0x80; 
-     if (!sign) 
-          sample = (short)-sample; 
-     if (sample > cClip) 
-          sample = cClip; 
-     if (sample >= 256) 
-     { 
-          exponent = (int)LogTable[(sample >> 8) & 0x7F]; 
-          mantissa = (sample >> (exponent + 3) ) & 0x0F; 
-          compandedValue = ((exponent << 4) | mantissa); 
-     } 
-     else 
-     { 
-          compandedValue = (unsigned char)(sample >> 4); 
-     } 
-     compandedValue ^= (sign ^ 0x55); 
-     return compandedValue; 
-}
-
-DIO_s16 DIO_ALawToLinear(DIO_s8 aLawByte)
-{
-	 const static DIO_s16 ALawDecompTable[256]={
-	  5504,  5248,  6016,  5760,  4480,  4224,  4992,  4736,
-	  7552,  7296,  8064,  7808,  6528,  6272,  7040,  6784,
-	  2752,  2624,  3008,  2880,  2240,  2112,  2496,  2368,
-	  3776,  3648,  4032,  3904,  3264,  3136,  3520,  3392,
-	 22016, 20992, 24064, 23040, 17920, 16896, 19968, 18944,
-	 30208, 29184, 32256, 31232, 26112, 25088, 28160, 27136,
-	 11008, 10496, 12032, 11520,  8960,  8448,  9984,  9472,
-	 15104, 14592, 16128, 15616, 13056, 12544, 14080, 13568,
-	   344,   328,   376,   360,   280,   264,   312,   296,
-	   472,   456,   504,   488,   408,   392,   440,   424,
-		88,    72,   120,   104,    24,     8,    56,    40,
-	   216,   200,   248,   232,   152,   136,   184,   168,
-	  1376,  1312,  1504,  1440,  1120,  1056,  1248,  1184,
-	  1888,  1824,  2016,  1952,  1632,  1568,  1760,  1696,
-	   688,   656,   752,   720,   560,   528,   624,   592,
-	   944,   912,  1008,   976,   816,   784,   880,   848,
-	 -5504, -5248, -6016, -5760, -4480, -4224, -4992, -4736,
-	 -7552, -7296, -8064, -7808, -6528, -6272, -7040, -6784,
-	 -2752, -2624, -3008, -2880, -2240, -2112, -2496, -2368,
-	 -3776, -3648, -4032, -3904, -3264, -3136, -3520, -3392,
-	-22016,-20992,-24064,-23040,-17920,-16896,-19968,-18944,
-	-30208,-29184,-32256,-31232,-26112,-25088,-28160,-27136,
-	-11008,-10496,-12032,-11520, -8960, -8448, -9984, -9472,
-	-15104,-14592,-16128,-15616,-13056,-12544,-14080,-13568,
-	  -344,  -328,  -376,  -360,  -280,  -264,  -312,  -296,
-	  -472,  -456,  -504,  -488,  -408,  -392,  -440,  -424,
-	   -88,   -72,  -120,  -104,   -24,    -8,   -56,   -40,
-	  -216,  -200,  -248,  -232,  -152,  -136,  -184,  -168,
-	 -1376, -1312, -1504, -1440, -1120, -1056, -1248, -1184,
-	 -1888, -1824, -2016, -1952, -1632, -1568, -1760, -1696,
-	  -688,  -656,  -752,  -720,  -560,  -528,  -624,  -592,
-	  -944,  -912, -1008,  -976,  -816,  -784,  -880,  -848};
-	 DIO_s16 addr = ((DIO_s16)aLawByte)+128; // done for compilers with poor expr type enforcement
-	 return ALawDecompTable[addr]; 
-}
-
-// see companders.h
-// fixed-radix IIR averager implementation supporting arbitrarily chosen windows
-DIO_s32 DIO_IIRavgFR	   (DIO_s32 prevAvg, DIO_u16 windowLen, DIO_s16 newSample, DIO_u8 radix)
-{
-	DIO_s32 iirAvg=0;
-	iirAvg = ((prevAvg * (windowLen-1)) + (DIO_I2FR(newSample,radix)))/windowLen;
-	return iirAvg;
-}
-
-// see companders.h
-// fixed-radix IIR averager implementation using power-of-2 sized windows
-// and only shift operations for cpu efficiency
-DIO_s32 DIO_IIRavgPower2FR (DIO_s32 prevAvg, DIO_u8 windowLenInBits, DIO_s16 newSample, DIO_u8 radix)
-{
-	DIO_s32 iirAvg=0;
-	iirAvg = (((prevAvg<<windowLenInBits)-prevAvg) + (DIO_I2FR(newSample,radix)))>>windowLenInBits;
-	return iirAvg;
-}
-
-
-#ifdef MAIN
-
-int main(int argc, char* argv[])
-{
-
-  
-  
-  return 0;
-}
-
-#endif

openair1/PHY/TOOLS/ALAW/companders.h

-/**
- *	@companders.h - header definition file for embedded companding routines
- *		
- *	@copy Copyright (C) <2001-2012>  <M. A. Chatterjee>
- *  @author M A Chatterjee <deftio [at] deftio [dot] com>
- *	@version 1.01 M. A. Chatterjee, cleaned up naming
- *
- *  This file contains integer math settable fixed point radix math routines for
- *  use on systems in which floating point is not desired or unavailable.
- *
- *  @license: 
- *	This software is provided 'as-is', without any express or implied
- *	warranty. In no event will the authors be held liable for any damages
- *	arising from the use of this software.
- *
- *	Permission is granted to anyone to use this software for any purpose,
- *	including commercial applications, and to alter it and redistribute it
- *	freely, subject to the following restrictions:
- *
- *	1. The origin of this software must not be misrepresented; you must not
- *	claim that you wrote the original software. If you use this software
- *	in a product, an acknowledgment in the product documentation would be
- *	appreciated but is not required.
- *
- *	2. Altered source versions must be plainly marked as such, and must not be
- *	misrepresented as being the original software.
- *
- *	3. This notice may not be removed or altered from any source
- *	distribution.
- *
- */
-
-#ifndef __DIO_Compand_h__
-#define __DIO_Compand_h__
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-//"DIO" prefixes are to assist in prevent name collisions if global namespace is used.
-
-//typedefs ... change for platform dependant register size
-// u/s = unsigned/signed 8/16/32 = num of bits
-// keywords "int" and "long" in C/C++ are platform dependant
-typedef unsigned char 	DIO_u8  ;  
-typedef signed char 	DIO_s8  ;
-typedef unsigned short 	DIO_u16 ;
-typedef signed short 	DIO_s16 ;
-typedef unsigned long 	DIO_u32 ;
-typedef signed long 	DIO_s32 ;
-
-// macros for converting from Fixed-Radix to integer, vice-versa
-// r represents radix precision in bits, converts to/from integer w truncation
-#define DIO_I2FR(x,r)		((x)<<(r))
-#define DIO_FR2I(x,r)		((x)>>(r))
-
-
-// convert FR to double, this is for debug only and WILL NOT compile under many embedded systems.
-// use this in test harnesses. Since this is a macro if its not used it won't expand / link
-#define DIO_FR2D(x,r) ((double)(((double)(x))/((double)(1<<(r)))))
-
-//convert signed linear 16 bit sample to an 8 bit A-Law companded sample
-DIO_s8  DIO_LinearToALaw(DIO_s16 sample);
-
-//convert 8bit Alaw companded representation back to linear 16 bit
-DIO_s16 DIO_ALawToLinear(DIO_s8 aLawByte);
-			
-			
-//DC Offset correction for integer companders
-//IIR: y_0=(y_1*(w-1)+x_0)/(w)
-//where w is the window length
-//below are fixed radix precision IIR averagers which allow runtime tradeoffs for windowLen & precision
-//Note that (windowLen)*(1<<radix) must < 32767 
-
-
-//DIO_IIRavgPower2FR() allows any window length but uses a divide instruction.
-//output is in radix number of bits 
-DIO_s32 DIO_IIRavgFR	   (DIO_s32 prevAvg, DIO_u16 windowLen, DIO_s16 newSample, DIO_u8 radix);
-
-//DIO_IIRavgPower2FR() similar to above, but window length is specified as a number of bits
-//which removes the need for a divide in the implementation
-//outpit is in radix number of bits 
-DIO_s32 DIO_IIRavgPower2FR (DIO_s32 prevAvg, DIO_u8 windowLenInBits, DIO_s16 newSample, DIO_u8 radix);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* __DIO_Compand_h__ */

openair1/PHY/TOOLS/ALAW/compandit.c

-/**
- *	@file compandit.c - implementation test file for integer companding with
- *  compand/uncompand support & IIR correction
- *
- *	@copy Copyright (C) <2012>  <M. A. Chatterjee>
- *  @author M A Chatterjee <deftio [at] deftio [dot] com>
- *
- *	This software is provided 'as-is', without any express or implied
- *	warranty. In no event will the authors be held liable for any damages
- *	arising from the use of this software.
- *
- *	Permission is granted to anyone to use this software for any purpose,
- *	including commercial applications, and to alter it and redistribute it
- *	freely, subject to the following restrictions:
- *
- *	1. The origin of this software must not be misrepresented; you must not
- *	claim that you wrote the original software. If you use this software
- *	in a product, an acknowledgment in the product documentation would be
- *	appreciated but is not required.
- *
- *	2. Altered source versions must be plainly marked as such, and must not be
- *	misrepresented as being the original software.
- *
- *	3. This notice may not be removed or altered from any source
- *	distribution.
- *
- */
-
-#include <stdio.h>
-#include <string.h>
-
-
-#include "companders.h"
-
-
-//===============================================
-//main program for testing the functions
-int main (int argc, char *argv[])
-{
-	int ret_val = 0;
-	int i=0,j=0;
-	printf("\n============================================================\n");
-	printf("compandit library quikie program\n");
-	printf("M. A. Chatterjee (c) 2012\n\n");
-	printf("These routines were developed for use on embedded projects\n");
-	printf("for more info see the accompanying compand.txt\n");
-	printf("\n");
-	
-	//uncomment to 
-	//show how linear-->alaw-->linear-->alaw progression / quantization error works
-	/*
-	
-	{
-		char alaw=0,alaw2;
-		short rev=0;
-
-		for (i= -32768; i <= 32767; i++)
-		{
-			alaw = DIO_LinearToALaw((short)i);
-			rev  = DIO_ALawToLinear(alaw);
-			alaw2 =DIO_LinearToALaw(rev);
-			if (alaw != alaw2)
-				printf("***********");
-			printf("%7d  %7d  %7d %7d\n",i,(int)alaw,(int)rev,(int)alaw2);
-		}
-	}
-
-
-    // IIR averager examples
-    //IIR window length of 8 samples, using fractional precision of 4 bits
-    {    
-		int a3=0, a4=0;
-		unsigned char rad=4; //4 bits fixed-radix fractional precision
-		printf(" index   wave  IIRav(i)  IIRav(f)  IIRavP2(i) IIRavP2(f)\n");
-		for (i=0; i < 300; i++)
-		{
-			j=(i&0x3f)-20; // triangle wave with range -20 to + 43
-			a3= DIO_IIRavgFR(a3,8,j,rad);		  
-			a4= DIO_IIRavgPower2FR(a4,3,j,rad);  
-			printf("%6d  %6d  %6d  %9.4f     %6d  %9.4f \n",i,j, 
-				DIO_FR2I(a3,rad),DIO_FR2D(a3,rad) ,DIO_FR2I(a4,rad),DIO_FR2D(a4,rad));
-		}
-	}
-    //IIR window length of 64 samples
-    {    
-		int a3=0, a4=0;
-		unsigned char rad=6; //rad is the number of bits of precision 
-		printf(" index   wave  IIRav(i)  IIRav(f)  IIRavP2(i) IIRavP2(f)\n");
-		for (i=0; i < 300; i++)
-		{
-			j=(i&0x3f)-20; // triangle wave with range -20 to + 43
-			a3= DIO_IIRavgFR(a3,64,j,rad);	   
-			a4= DIO_IIRavgPower2FR(a4,6,j,rad); 
-			printf("%6d  %6d  %6d  %9.4f     %6d  %9.4f \n",i,j, 
-				DIO_FR2I(a3,rad),DIO_FR2D(a3,rad) ,DIO_FR2I(a4,rad),DIO_FR2D(a4,rad));
-		}
-	}
-	// */
-	//Typical microcontroller application.  See readme-companders.txt
-	// the input here simulates an A/D which has  a range 0..3.3V mapped as 12 bits (0..4095)
-	// with a DC bias of 1.55V  ==> (1.55/3.3)*4095 counts = 1923 counts
-	
-	//now window length of 256 is used for rejecting the resistor bias.  at 8KHz this window
-	// would be approx 8000/256 ~= 31 Hz (not quite but explaining Z xforms is beyond what
-	// can be explained in this small space.)
-	//we seed the DC average at 3.3/2 = 1.65V (we guess its in the middle) and let the long window
-	//length hone in on the correct value.  (1.65V/3.3V) *4095 = 2048 counts
-    {    
-		int actualDCbias     =1923;
-		int calculatedDCbias =2048;	//2048 is our initial estimate as outlined above
-		unsigned char windowLenPow2InBits = 8; // 8 bit long window = 256 sample long window
-		unsigned char rad=6; //rad is the number of bits of precision 
-
-		calculatedDCbias = DIO_I2FR(calculatedDCbias,rad);
-		printf(" index   wave  actDCbias  calcDCbias  calcDCbias(f) alaw\n");
-		for (i=0; i < 1000; i++)  // if 8000 hz sample rate this represents the number of samples captured
-		{
-			j=(((i&0x3f)<<1)-63)+1923; // triangle wave w range 0..127  with a bias set at actualDCbias
-			calculatedDCbias = DIO_IIRavgPower2FR(calculatedDCbias,windowLenPow2InBits,j,rad); 
-			printf("%6d %6d   %6d     %6d      %9.4f     %3d\n",i,j,actualDCbias, 
-				DIO_FR2I(calculatedDCbias,rad),DIO_FR2D(calculatedDCbias,rad),
-				(int)(DIO_LinearToALaw(j-DIO_FR2I(calculatedDCbias,rad)) ));
-		}
-	}
-	printf("\n");
-	return ret_val;
-}
-

openair1/PHY/defs.h

@@ -160,6 +160,7 @@ enum transmission_access_mode {
 typedef enum  {
   eNodeB_3GPP=0,   // classical eNodeB function
   eNodeB_3GPP_BBU, // eNodeB with NGFI IF5
+  NGFI_RRU_IF5,    // NGFI_RRU with IF5
   NGFI_RRU_IF4,    // NGFI_RRU (NGFI remote radio-unit, currently split at common - ue_specific interface, IF4) 
   NGFI_RCC_IF4     // NGFI_RCC (NGFI radio cloud center, currently split at common - ue_specific interface, IF4) 
 } eNB_func_t;
@@ -513,7 +514,8 @@ typedef struct PHY_VARS_eNB_s {
   /// RF and Interface devices per CC
   openair0_device rfdevice; 
   openair0_device ifdevice;
-  // *** Handle spatially distributed MIMO antenna ports   
+  /// Pointer for ifdevice buffer struct
+  if_buffer_t ifbuffer;
 
 } PHY_VARS_eNB;
 

openair1/SCHED/phy_procedures_lte_eNb.c

@@ -45,6 +45,7 @@
 #include "SCHED/extern.h"
 
 #include "PHY/LTE_TRANSPORT/if4_tools.h"
+#include "PHY/LTE_TRANSPORT/if5_tools.h"
 
 #ifdef EMOS
 #include "SCHED/phy_procedures_emos.h"
@@ -2524,6 +2525,8 @@ void phy_procedures_eNB_common_RX(PHY_VARS_eNB *eNB,const uint8_t abstraction_fl
 
   int prach_rx;
 
+  uint8_t seqno=0;
+
   uint16_t packet_type;
   uint32_t symbol_number=0;
   uint32_t symbol_mask, symbol_mask_full;
@@ -2546,6 +2549,7 @@ void phy_procedures_eNB_common_RX(PHY_VARS_eNB *eNB,const uint8_t abstraction_fl
   if (abstraction_flag==0) { // grab signal in chunks of 500 us (1 slot)
 		
     if ((eNB->node_function == NGFI_RRU_IF4) ||
+        (eNB->node_function == NGFI_RRU_IF5) || 
 	      (eNB->node_function == eNodeB_3GPP)) { // acquisition from RF
 
 	    for (i=0; i<fp->nb_antennas_rx; i++)
@@ -2585,10 +2589,31 @@ void phy_procedures_eNB_common_RX(PHY_VARS_eNB *eNB,const uint8_t abstraction_fl
       VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_READ, 0 );
 
     } else if(eNB->node_function == eNodeB_3GPP_BBU) { // acquisition from IF
-      /// **** trx_read_func from IF device **** ///
+      /// **** recv_IF5 of rxdata from RRH **** ///       
+      VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_RECV_IF5, 1 );  
+      recv_IF5(eNB, &proc->timestamp_rx, proc->subframe_rx, IF5_RRH_GW_UL); 
+      VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_RECV_IF5, 0 );  
       
+      proc->frame_rx    = (proc->timestamp_rx / (fp->samples_per_tti*10))&1023;
+      proc->subframe_rx = (proc->timestamp_rx / fp->samples_per_tti)%10;
+
+      if (proc->first_rx == 0) {
+        if (proc->subframe_rx != subframe){
+          LOG_E(PHY,"Received Timestamp doesn't correspond to the time we think it is (proc->subframe_rx %d, subframe %d)\n",proc->subframe_rx,subframe);
+          //exit_fun("Exiting");
+        }
+        if (proc->frame_rx != frame) {
+          LOG_E(PHY,"Received Timestamp doesn't correspond to the time we think it is (proc->frame_rx %d frame %d)\n",proc->frame_rx,frame);
+          //exit_fun("Exiting");
+        }
+      } else {
+        proc->first_rx = 0;
       }
 
+      VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_TRX_TS, proc->timestamp_rx&0xffffffff );
+      VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_FRAME_NUMBER_RX_ENB, proc->frame_rx );
+      VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_SUBFRAME_NUMBER_RX_ENB, proc->subframe_rx );
+    }
         
     if ((eNB->node_function == NGFI_RRU_IF4) || 
         (eNB->node_function == eNodeB_3GPP)  ||
@@ -2654,6 +2679,12 @@ void phy_procedures_eNB_common_RX(PHY_VARS_eNB *eNB,const uint8_t abstraction_fl
         }
       }
     
+    } else if (eNB->node_function == NGFI_RRU_IF5) {
+      /// **** send_IF5 of rxdata to BBU **** ///       
+      VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_SEND_IF5, 1 );  
+      send_IF5(eNB, proc->timestamp_rx, proc->subframe_rx, &seqno, IF5_RRH_GW_UL);
+      VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_SEND_IF5, 0 );  
+            
     } else if (eNB->node_function == NGFI_RCC_IF4) {
       /// **** recv_IF4 of rxdataF from RRU **** ///
       /// **** recv_IF4 of rxsigF from RRU **** ///
@@ -2709,11 +2740,11 @@ void phy_procedures_eNB_common_RX(PHY_VARS_eNB *eNB,const uint8_t abstraction_fl
       if (proc->first_rx == 0) {
         if (proc->subframe_rx != subframe){
           LOG_E(PHY,"Received Timestamp doesn't correspond to the time we think it is (proc->subframe_rx %d, subframe %d)\n",proc->subframe_rx,subframe);
-//          exit_fun("Exiting");
+          //exit_fun("Exiting");
         }
         if (proc->frame_rx != frame) {
           LOG_E(PHY,"Received Timestamp doesn't correspond to the time we think it is (proc->frame_rx %d frame %d)\n",proc->frame_rx,frame);
-  //        exit_fun("Exiting");
+          //exit_fun("Exiting");
         }
       } else {
         proc->first_rx = 0;

openair2/UTIL/LOG/vcd_signal_dumper.c

@@ -331,9 +331,11 @@ const char* eurecomFunctionsNames[] = {
   "itti_relay_thread",
   "test",
   
-  /* IF4 signals */
+  /* IF4/IF5 signals */
   "send_if4",
-  "recv_if4"
+  "recv_if4",
+  "send_if5",
+  "recv_if5"  
 };
 
 struct vcd_module_s vcd_modules[VCD_SIGNAL_DUMPER_MODULE_END] = {

openair2/UTIL/LOG/vcd_signal_dumper.h

@@ -308,9 +308,11 @@ typedef enum {
   VCD_SIGNAL_DUMPER_FUNCTIONS_ITTI_RELAY_THREAD,
   VCD_SIGNAL_DUMPER_FUNCTIONS_TEST,
   
-  /* IF4 signals */
+  /* IF4/IF5 signals */
   VCD_SIGNAL_DUMPER_FUNCTIONS_SEND_IF4,
   VCD_SIGNAL_DUMPER_FUNCTIONS_RECV_IF4,
+  VCD_SIGNAL_DUMPER_FUNCTIONS_SEND_IF5,
+  VCD_SIGNAL_DUMPER_FUNCTIONS_RECV_IF5,
 
   VCD_SIGNAL_DUMPER_FUNCTIONS_LAST,
   VCD_SIGNAL_DUMPER_FUNCTIONS_END = VCD_SIGNAL_DUMPER_FUNCTIONS_LAST,

targets/ARCH/COMMON/common_lib.h

@@ -236,6 +236,14 @@ typedef struct {
 } eth_params_t;
 
 
+typedef struct {
+  //! Tx buffer for if device
+  void *tx;
+  //! Rx buffer for if device
+  void *rx;
+} if_buffer_t;
+
+
 /*!\brief structure holds the parameters to configure USRP devices */
 struct openair0_device_t {
   /*!brief Module ID of this device */

targets/ARCH/ETHERNET/USERSPACE/LIB/eth_raw.c

@@ -51,9 +51,6 @@
 
 #include "common_lib.h"
 #include "ethernet_lib.h"
-#include "if_defs.h"
-#include "openair1/PHY/LTE_TRANSPORT/if4_tools.h"
-#include "openair1/PHY/LTE_TRANSPORT/if5_mobipass_tools.h"
 
 #define DEBUG 0
 
@@ -124,11 +121,11 @@ int eth_socket_init_raw(openair0_device *device) {
  /* Construct the Ethernet header */ 
  ether_aton_r(local_mac, (struct ether_addr *)(&(eth->eh.ether_shost)));
  ether_aton_r(remote_mac, (struct ether_addr *)(&(eth->eh.ether_dhost)));
-// if (((*) device->priv)->flags == ETH_RAW_IF5_MOBIPASS) {
+ if (eth->flags == ETH_RAW_IF5_MOBIPASS) {
    eth->eh.ether_type = htons(0xbffe);
-// } else {
-//   eth->eh.ether_type = htons((short)device->openair0_cfg->my_port);
-// } 
+ } else {
+   eth->eh.ether_type = htons((short)device->openair0_cfg->my_port);
+ } 
  printf("[%s] binding mod_%d to hardware address %x:%x:%x:%x:%x:%x\n",((device->host_type == BBU_HOST) ? "BBU": "RRH"),Mod_id,eth->eh.ether_shost[0],eth->eh.ether_shost[1],eth->eh.ether_shost[2],eth->eh.ether_shost[3],eth->eh.ether_shost[4],eth->eh.ether_shost[5]);
  
  return 0;
@@ -316,12 +313,10 @@ int trx_eth_read_raw_IF4(openair0_device *device, openair0_timestamp *timestamp,
   int Mod_id = device->Mod_id;
   
   ssize_t packet_size = MAC_HEADER_SIZE_BYTES + sizeof_IF4_header_t;      
-  void *test_buffer = (void*)malloc(packet_size);
-  
-  IF4_header_t *test_header = (IF4_header_t*)(test_buffer + MAC_HEADER_SIZE_BYTES);
+  IF4_header_t *test_header = (IF4_header_t*)(buff[0] + MAC_HEADER_SIZE_BYTES);
   
   bytes_received = recv(eth->sockfd[Mod_id],
-                        test_buffer,
+                        buff[0],
                         packet_size,
                         MSG_PEEK);                        
 	if (bytes_received ==-1) {
@@ -340,10 +335,6 @@ int trx_eth_read_raw_IF4(openair0_device *device, openair0_timestamp *timestamp,
     packet_size = RAW_IF4_PRACH_SIZE_BYTES;
   }
         
-  buff[0] = (void*)malloc(packet_size);
-  
-  bytes_received = 0;
-  
   while(bytes_received < packet_size) {
     bytes_received = recv(eth->sockfd[Mod_id],
                           buff[0],
@@ -360,7 +351,6 @@ int trx_eth_read_raw_IF4(openair0_device *device, openair0_timestamp *timestamp,
   }
 
   eth->rx_nsamps = nsamps;  
-  free(test_buffer);
   return(bytes_received);
 }
 
@@ -398,6 +388,7 @@ int eth_set_dev_conf_raw(openair0_device *device) {
 
 
 int eth_set_dev_conf_raw_IF4(openair0_device *device) {  
+  // use for cc_id info
 
   int 	       Mod_id = device->Mod_id;
   eth_state_t *eth = (eth_state_t*)device->priv;
@@ -458,6 +449,7 @@ int eth_get_dev_conf_raw(openair0_device *device) {
 
 
 int eth_get_dev_conf_raw_IF4(openair0_device *device) {
+  // use for cc_id info
 
   eth_state_t   *eth = (eth_state_t*)device->priv;
   int 		Mod_id = device->Mod_id;

targets/ARCH/ETHERNET/USERSPACE/LIB/eth_udp.c

@@ -52,7 +52,6 @@
 
 #include "common_lib.h"
 #include "ethernet_lib.h"
-#include "if_defs.h"
 
 #define DEBUG 0
 struct sockaddr_in dest_addr[MAX_INST];

targets/ARCH/ETHERNET/USERSPACE/LIB/ethernet_lib.c

@@ -51,7 +51,6 @@
 
 #include "common_lib.h"
 #include "ethernet_lib.h"
-#include "if_defs.h"
 
 int num_devices_eth = 0;
 struct sockaddr_in dest_addr[MAX_INST];
@@ -83,7 +82,7 @@ int trx_eth_start(openair0_device *device) {
       if(eth_get_dev_conf_raw_IF4(device)!=0)  return -1;
     }
     /* adjust MTU wrt number of samples per packet */
-    if(ethernet_tune (device,MTU_SIZE,RAW_PACKET_SIZE_BYTES(device->openair0_cfg->samples_per_packet))!=0)  return -1;
+    if(ethernet_tune (device,MTU_SIZE,RAW_IF4_PRACH_SIZE_BYTES)!=0)  return -1;
     
   } else if (eth->flags == ETH_UDP_IF4_MODE) {
     
@@ -107,8 +106,6 @@ int trx_eth_start(openair0_device *device) {
     } else {
       if(eth_get_dev_conf_udp(device)!=0)  return -1;
     }
-    /* adjust MTU wrt number of samples per packet */
-    //if(ethernet_tune (device,MTU_SIZE,UDP_PACKET_SIZE_BYTES(device->openair0_cfg->samples_per_packet))!=0)  return -1;
   }
   /* apply additional configuration */
   if(ethernet_tune (device, SND_BUF_SIZE,2000000000)!=0)  return -1;
@@ -386,8 +383,6 @@ int transport_init(openair0_device *device, openair0_config_t *openair0_cfg, eth
   device->priv = eth;
  	
   /* device specific */
-  //openair0_cfg[0].txlaunch_wait = 0;//manage when TX processing is triggered
-  //openair0_cfg[0].txlaunch_wait_slotcount = 0; //manage when TX processing is triggered
   openair0_cfg[0].iq_rxrescale = 15;//rescale iqs
   openair0_cfg[0].iq_txshift = eth_params->iq_txshift;// shift
   openair0_cfg[0].tx_sample_advance = eth_params->tx_sample_advance;
@@ -397,19 +392,19 @@ int transport_init(openair0_device *device, openair0_config_t *openair0_cfg, eth
     /*Note scheduling advance values valid only for case 7680000 */    
     switch ((int)openair0_cfg[0].sample_rate) {
     case 30720000:
-      openair0_cfg[0].samples_per_packet    = 4096;     
+      openair0_cfg[0].samples_per_packet    = 3840;     
       break;
     case 23040000:     
-      openair0_cfg[0].samples_per_packet    = 2048;
+      openair0_cfg[0].samples_per_packet    = 2880;
       break;
     case 15360000:
-      openair0_cfg[0].samples_per_packet    = 2048;      
+      openair0_cfg[0].samples_per_packet    = 1920;      
       break;
     case 7680000:
-      openair0_cfg[0].samples_per_packet    = 1024;     
+      openair0_cfg[0].samples_per_packet    = 960;     
       break;
     case 1920000:
-      openair0_cfg[0].samples_per_packet    = 256;     
+      openair0_cfg[0].samples_per_packet    = 240;     
       break;
     default:
       printf("Error: unknown sampling rate %f\n",openair0_cfg[0].sample_rate);

targets/ARCH/ETHERNET/USERSPACE/LIB/if_defs.h

@@ -41,6 +41,9 @@
 #include <netinet/ether.h>
 #include <stdint.h>
 
+#include "PHY/LTE_TRANSPORT/if4_tools.h"
+#include "PHY/LTE_TRANSPORT/if5_tools.h"
+
 // ETH transport preference modes
 #define ETH_UDP_MODE        0
 #define ETH_RAW_MODE        1
@@ -56,7 +59,7 @@
 #define RAW_PACKET_SIZE_BYTES(nsamps) (APP_HEADER_SIZE_BYTES + MAC_HEADER_SIZE_BYTES + PAYLOAD_SIZE_BYTES(nsamps))
 
 // Packet sizes for IF4 interface format
-#define DATA_BLOCK_SIZE_BYTES(scaled_nblocks) (sizeof(int16_t)*scaled_nblocks)
+#define DATA_BLOCK_SIZE_BYTES(scaled_nblocks) (sizeof(uint16_t)*scaled_nblocks)
 #define PRACH_BLOCK_SIZE_BYTES (sizeof(int16_t)*839*2)  // FIX hard coded prach size (uncompressed)
  
 #define RAW_IF4_PDLFFT_SIZE_BYTES(nblocks) (MAC_HEADER_SIZE_BYTES + sizeof_IF4_header_t + DATA_BLOCK_SIZE_BYTES(nblocks))  

targets/RT/USER/lte-enb.c

@@ -69,7 +69,7 @@
 //#undef FRAME_LENGTH_COMPLEX_SAMPLES //there are two conflicting definitions, so we better make sure we don't use it at all
 
 #include "PHY/LTE_TRANSPORT/if4_tools.h"
-#include "PHY/LTE_TRANSPORT/if5_mobipass_tools.h"
+#include "PHY/LTE_TRANSPORT/if5_tools.h"
 
 #include "PHY/extern.h"
 #include "SCHED/extern.h"
@@ -302,6 +302,8 @@ static void* eNB_thread_rxtx( void* param ) {
   uint16_t packet_type;
   uint32_t symbol_number=0;
   
+  uint8_t seqno=0;
+  
   if (opp_enabled == 1) {
     snprintf(tx_time_name, 100,"/tmp/%s_tx_time_thread_sf", "eNB");
     tx_time_file = fopen(tx_time_name,"w");
@@ -434,7 +436,9 @@ static void* eNB_thread_rxtx( void* param ) {
     if (oai_exit) break;
 
     // UE-specific RX processing for subframe n
-    if (PHY_vars_eNB_g[0][proc->CC_id]->node_function != NGFI_RRU_IF4) {
+    if ((PHY_vars_eNB_g[0][proc->CC_id]->node_function == eNodeB_3GPP) ||
+        (PHY_vars_eNB_g[0][proc->CC_id]->node_function == eNodeB_3GPP_BBU) ||
+        (PHY_vars_eNB_g[0][proc->CC_id]->node_function == NGFI_RCC_IF4)) {
       VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_ENB_RX_UESPEC, 1 );
       // this is the ue-specific processing for the subframe and can be multi-threaded later
       phy_procedures_eNB_uespec_RX(PHY_vars_eNB_g[0][proc->CC_id], proc, 0, no_relay );
@@ -472,7 +476,9 @@ static void* eNB_thread_rxtx( void* param ) {
       
       if (oai_exit) break;
       
-      if (PHY_vars_eNB_g[0][proc->CC_id]->node_function != NGFI_RRU_IF4) { 
+      if ((PHY_vars_eNB_g[0][proc->CC_id]->node_function == eNodeB_3GPP) ||
+          (PHY_vars_eNB_g[0][proc->CC_id]->node_function == eNodeB_3GPP_BBU) ||
+          (PHY_vars_eNB_g[0][proc->CC_id]->node_function == NGFI_RCC_IF4)) { 
         phy_procedures_eNB_TX(PHY_vars_eNB_g[0][proc->CC_id], proc, 0, no_relay, NULL );
 
         /* we're done, let the next one proceed */
@@ -489,21 +495,28 @@ static void* eNB_thread_rxtx( void* param ) {
           exit_fun("nothing to add");
           break;
 	}
-      } else {
-
+      } else if (PHY_vars_eNB_g[0][proc->CC_id]->node_function == NGFI_RRU_IF4) {
         /// **** recv_IF4 of txdataF from RCC **** ///             
         VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_RECV_IF4, 1 );  
-        while (symbol_number < PHY_vars_eNB_g[0][proc->CC_id]->frame_parms.symbols_per_tti-1) { 
+        do { 
           recv_IF4(PHY_vars_eNB_g[0][proc->CC_id], &proc->frame_tx, &proc->subframe_tx, &packet_type, &symbol_number);
-        }
+        } while (symbol_number < PHY_vars_eNB_g[0][proc->CC_id]->frame_parms.symbols_per_tti-1); 
+        
         VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_RECV_IF4, 0 );   
         
-        // Check the recv frame/subframe
+      } else if (PHY_vars_eNB_g[0][proc->CC_id]->node_function == NGFI_RRU_IF5) {
+        /// **** recv_IF5 of txdata from BBU **** ///       
+        VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_RECV_IF5, 1 );  
+        recv_IF5(PHY_vars_eNB_g[0][proc->CC_id], &proc->timestamp_tx, proc->subframe_tx, IF5_RRH_GW_DL);
+        VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_RECV_IF5, 0 );  
+
       }
     }
 
     // eNodeB_3GPP, _BBU and RRU create txdata
-    if (PHY_vars_eNB_g[0][proc->CC_id]->node_function != NGFI_RCC_IF4) {
+    if ((PHY_vars_eNB_g[0][proc->CC_id]->node_function == eNodeB_3GPP) ||
+        (PHY_vars_eNB_g[0][proc->CC_id]->node_function == eNodeB_3GPP_BBU) ||
+        (PHY_vars_eNB_g[0][proc->CC_id]->node_function == NGFI_RRU_IF4)) {
       VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_SFGEN , 1 );
       do_OFDM_mod_rt( proc->subframe_tx, PHY_vars_eNB_g[0][proc->CC_id] );
       VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_SFGEN , 0 );
@@ -525,8 +538,9 @@ static void* eNB_thread_rxtx( void* param ) {
           
 
     // eNodeB_3GPP, RRU write to RF device    
-    if (PHY_vars_eNB_g[0][proc->CC_id]->node_function == eNodeB_3GPP ||
-        PHY_vars_eNB_g[0][proc->CC_id]->node_function == NGFI_RRU_IF4) {
+    if ((PHY_vars_eNB_g[0][proc->CC_id]->node_function == eNodeB_3GPP) ||
+        (PHY_vars_eNB_g[0][proc->CC_id]->node_function == NGFI_RRU_IF4) ||
+        (PHY_vars_eNB_g[0][proc->CC_id]->node_function == NGFI_RRU_IF5)) {
       // Transmit TX buffer based on timestamp from RX  
       VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_WRITE, 1 );
       // prepare tx buffer pointers
@@ -547,14 +561,17 @@ static void* eNB_thread_rxtx( void* param ) {
       VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_TRX_TST, (proc->timestamp_tx-openair0_cfg[0].tx_sample_advance)&0xffffffff );
 
     } else if (PHY_vars_eNB_g[0][proc->CC_id]->node_function == eNodeB_3GPP_BBU) {
-      /// **** trx_write_func to IF device **** ///       
-   //   send_IF5(PHY_vars_eNB_g[0][proc->CC_id], proc, 0);
+      /// **** send_IF5 of txdata to RRH **** ///       
+      VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_SEND_IF5, 1 );  
+      send_IF5(PHY_vars_eNB_g[0][proc->CC_id], proc->timestamp_tx, proc->subframe_tx, &seqno, IF5_RRH_GW_DL);
+      VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_SEND_IF5, 0 );  
 
     } else { 
       /// **** send_IF4 of txdataF to RRU **** ///       
       VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_SEND_IF4, 1 );   
       send_IF4(PHY_vars_eNB_g[0][proc->CC_id], proc->frame_tx, proc->subframe_tx, IF4_PDLFFT, 0);
       VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_SEND_IF4, 0 );
+      
     }
 
     if (pthread_mutex_lock(&proc->mutex_rxtx) != 0) {
@@ -626,10 +643,8 @@ static void* eNB_thread_rx_common( void* param ) {
   PHY_VARS_eNB *eNB = PHY_vars_eNB_g[0][proc->CC_id];
   LTE_DL_FRAME_PARMS *fp = &eNB->frame_parms;
   
-  uint8_t seqno=0;
   FILE  *rx_time_file = NULL;
   char rx_time_name[101];
-  int i;
   struct timespec wait;
 
   wait.tv_sec=0;
@@ -753,6 +768,18 @@ static void* eNB_thread_rx_common( void* param ) {
   wait_system_ready ("Waiting for eNB application to be ready %s\r", &start_eNB);
 #endif 
 
+  // Create buffer for IF device and free when stopping
+  if (eNB->node_function == NGFI_RCC_IF4 || eNB->node_function == NGFI_RRU_IF4) {
+    malloc_IF4_buffer(eNB);
+    
+  } else if (eNB->node_function == NGFI_RRU_IF5 || eNB->node_function == eNodeB_3GPP_BBU) {
+    //malloc_IF5_buffer(eNB);
+
+  } else {
+    eNB->ifbuffer.tx = NULL;
+    eNB->ifbuffer.rx = NULL;
+  }
+
   // Start IF device for this CC
   if (eNB->node_function != eNodeB_3GPP) {
     if (eNB->ifdevice.trx_start_func(&eNB->ifdevice) != 0 ) 
@@ -760,19 +787,13 @@ static void* eNB_thread_rx_common( void* param ) {
   }
   
   // Start RF device for this CC
-  if (eNB->node_function == eNodeB_3GPP || eNB->node_function == NGFI_RRU_IF4) {
+  if ((eNB->node_function == eNodeB_3GPP) || 
+      (eNB->node_function == NGFI_RRU_IF4) || 
+      (eNB->node_function == NGFI_RRU_IF5)) {
     if (eNB->rfdevice.trx_start_func(&eNB->rfdevice) != 0 ) 
       LOG_E(HW,"Could not start the RF device\n");
   }
       
-  //  proc->proc_rxtx[0].timestamp_tx = 0;
-  //  seqno = send_IF5(eNB, &proc->proc_rxtx[0], 0); 
-  
- // for (i=0; i<1000;i++) {
- //   seqno = send_IF5(eNB, &proc->proc_rxtx[0], seqno); 
- //   proc->proc_rxtx[0].timestamp_tx += 7680*2;
- // }
-      
   // This is a forever while loop, it loops over subframes which are scheduled by incoming samples from HW devices
   while (!oai_exit) {
     VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_PROC_RX, 0 );

targets/RT/USER/lte-softmodem.c

@@ -385,9 +385,11 @@ void help (void) {
   printf("  --ue-txgain set UE TX gain\n");
   printf("  --ue-scan_carrier set UE to scan around carrier\n");
   printf("  --loop-memory get softmodem (UE) to loop through memory instead of acquiring from HW\n");
-  printf("  --RCC run using NGFI RCC node function\n");
-  printf("  --RRU run using NGFI RRU node function\n");
+  printf("  --RCC run using NGFI RCC node function IF4 split\n");
+  printf("  --RRU run using NGFI RRU node function  IF4 split\n");
   printf("  --eNB run using 3GPP eNB node function\n");   
+  printf("  --BBU run using 3GPP eNB node function with IF5 split\n");   
+  printf("  --RRH run using RRH node function with IF5 split\n");   
   printf("  -C Set the downlink frequency for all component carriers\n");
   printf("  -d Enable soft scope and L1 and L2 stats (Xforms)\n");
   printf("  -F Calibrate the EXMIMO borad, available files: exmimo2_2arxg.lime exmimo2_2brxg.lime \n");
@@ -687,7 +689,8 @@ static void get_options (int argc, char **argv)
     LONG_OPTION_RCC,
     LONG_OPTION_RRU,
     LONG_OPTION_ENB,
-    LONG_OPTION_ENB_BBU
+    LONG_OPTION_ENB_BBU,
+    LONG_OPTION_RRH
 #if T_TRACER
     ,
     LONG_OPTION_T_PORT,
@@ -715,6 +718,7 @@ static void get_options (int argc, char **argv)
     {"RRU", no_argument, NULL, LONG_OPTION_RRU},
     {"eNB", no_argument, NULL, LONG_OPTION_ENB},
     {"BBU", no_argument, NULL, LONG_OPTION_ENB_BBU},
+    {"RRH", no_argument, NULL, LONG_OPTION_RRH},
 #if T_TRACER
     {"T_port",                 required_argument, 0, LONG_OPTION_T_PORT},
     {"T_nowait",               no_argument,       0, LONG_OPTION_T_NOWAIT},
@@ -822,6 +826,10 @@ static void get_options (int argc, char **argv)
       node_function = eNodeB_3GPP_BBU;
       break;
 
+    case LONG_OPTION_RRH:
+      node_function = NGFI_RRU_IF5;
+      break;
+      
 #if T_TRACER
     case LONG_OPTION_T_PORT: {
       extern int T_port;
@@ -1650,19 +1658,13 @@ int main( int argc, char **argv )
 
   if (UE_flag == 0) {
     for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
-      if (node_function == NGFI_RRU_IF4) {
+      if (node_function == NGFI_RRU_IF4 || node_function == NGFI_RRU_IF5) {
         PHY_vars_eNB_g[0][CC_id]->rfdevice.host_type = RRH_HOST;
         PHY_vars_eNB_g[0][CC_id]->ifdevice.host_type = RRH_HOST;
       } else {
         PHY_vars_eNB_g[0][CC_id]->rfdevice.host_type = BBU_HOST;
         PHY_vars_eNB_g[0][CC_id]->ifdevice.host_type = BBU_HOST;
       }
-      
-      PHY_vars_eNB_g[0][CC_id]->rfdevice.type = NONE_DEV;
-      PHY_vars_eNB_g[0][CC_id]->rfdevice.transp_type = NONE_TP;
-      
-      PHY_vars_eNB_g[0][CC_id]->ifdevice.type = NONE_DEV;
-      PHY_vars_eNB_g[0][CC_id]->ifdevice.transp_type = NONE_TP;
     }
   }
   /* device host type is set*/
@@ -1703,8 +1705,7 @@ int main( int argc, char **argv )
     
   // Handle spatially distributed MIMO antenna ports   
   // Load RF device and initialize
-
-  if (node_function == NGFI_RRU_IF4 || node_function == eNodeB_3GPP) { 
+  if (node_function == NGFI_RRU_IF5 || node_function == NGFI_RRU_IF4 || node_function == eNodeB_3GPP) { 
     for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {  
       if (mode!=loop_through_memory) {
         returns= (UE_flag == 0) ?