diff --git a/openair1/PHY/LTE_TRANSPORT/if4_tools.c b/openair1/PHY/LTE_TRANSPORT/if4_tools.c new file mode 100644 index 0000000000..669b7a6739 --- /dev/null +++ b/openair1/PHY/LTE_TRANSPORT/if4_tools.c @@ -0,0 +1,186 @@ +/******************************************************************************* + 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 . + + 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, S. Sandeep Kumar, Raymond Knopp +* \date 2016 +* \version 0.1 +* \company Eurecom +* \email: knopp@eurecom.fr +* \note +* \warning +*/ + +#include "PHY/LTE_TRANSPORT/if4_tools.h" + +// 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 */ ); + + for(i=0; isymbols_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 + + } + +} + +void recv_IF4( /* ADD INFO and data_block pointer */ ) { + + // Read packet(s) from the fronthaul + + // Apply reverse processing - decompression + + // Generate and return the OFDM symbols (txdataF) + +} + +IF4_dl_packet gen_IF4_dl_packet( /* ADD INFO and data_block pointer */ ) { + IF4_dl_packet dl_packet; + + // Set destination and source address + + // Set Type and Sub-Type + dl_packet.type = ; //08_0A ? + dl_packet.sub_type = 0x0020; + + // Leave reserved as it is + //dl_packet.rsvd = ; + + // Set frame status + dl_packet.frame_status.ant_num = ; + dl_packet.frame_status.ant_start = ; + dl_packet.frame_status.rf_num = ; + dl_packet.frame_status.sf_num = ; + dl_packet.frame_status.sym_num = ; + //dl_packet.frame_status.rsvd = ; + + // Set data blocks if sent + if (data_block != NULL) { + + } else { + + } + + // Set frame check sequence + dl_packet.fcs = ; + + return dl_packet; +} + +IF4_ul_packet gen_IF4_ul_packet( /* ADD INFO and data_block pointer */ ) { + IF4_ul_packet ul_packet; + + // Set destination and source address + + // Set Type and Sub-Type + ul_packet.type = ; //08_0A ? + ul_packet.sub_type = 0x0019; + + // Leave reserved as it is + //ul_packet.rsvd = ; + + // Set frame status + ul_packet.frame_status.ant_num = ; + ul_packet.frame_status.ant_start = ; + ul_packet.frame_status.rf_num = ; + ul_packet.frame_status.sf_num = ; + ul_packet.frame_status.sym_num = ; + //ul_packet.frame_status.rsvd = ; + + // Set antenna specific gain + ul_packet.gain0.exponent = ; + //ul_packet.gain0.rsvd = ; + + // Set data blocks if sent + if (data_block != NULL) { + + } else { + + } + + // Set frame check sequence + ul_packet.fcs = ; + + return ul_packet; +} + +IF4_prach_packet gen_IF4_prach_packet( /* ADD INFO and data_block pointer */ ) { + IF4_prach_packet prach_packet; + + // Set destination and source address + + // Set Type and Sub-Type + prach_packet.type = ; //08_0A ? + prach_packet.sub_type = 0x0021; + + // Leave reserved as it is + //prach_packet.rsvd = ; + + // Set LTE Prach configuration + //prach_packet.prach_conf.rsvd = ; + prach_packet.prach_conf.ant = ; + prach_packet.prach_conf.rf_num = ; + prach_packet.prach_conf.sf_num = ; + prach_packet.prach_conf.exponent = ; + + // Set data blocks if sent + if (data_block != NULL) { + + } else { + + } + + // Set frame check sequence + prach_packet.fcs = ; + + return prach_packet; +} diff --git a/openair1/PHY/LTE_TRANSPORT/if4_tools.h b/openair1/PHY/LTE_TRANSPORT/if4_tools.h new file mode 100644 index 0000000000..3b25e82c6a --- /dev/null +++ b/openair1/PHY/LTE_TRANSPORT/if4_tools.h @@ -0,0 +1,164 @@ +/******************************************************************************* + 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 . + + 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.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 + +/// IF4 Frame Status (32 bits) +struct IF4_frame_status { + /// Antenna Numbers + uint32_t ant_num:3; + /// Antenna Start + uint32_t ant_start:3; + /// Radio Frame Number + uint32_t rf_num:16; + /// Sub-frame Number + uint32_t sf_num:4; + /// Symbol Number + uint32_t sym_num:4; + /// Reserved + uint32_t rsvd:2; +}; + +/// IF4 Antenna Gain (16 bits) +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; + /// Antenna Indication + uint32_t ant:3; + /// Radio Frame Number + uint32_t rf_num:16; + /// Sub-frame Number + uint32_t sf_num:4; + /// FFT Exponent Output + uint32_t exponent:6; +}; + +struct IF4_dl_packet { + /// Destination Address + + /// 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 { + /// Destination Address + + /// 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 + uint32_t fcs; +}; + +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; +}; + +// Needs to be checked + +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/SCHED/phy_procedures_lte_eNb.c b/openair1/SCHED/phy_procedures_lte_eNb.c index 7e19bfbc76..619a5d6329 100755 --- a/openair1/SCHED/phy_procedures_lte_eNb.c +++ b/openair1/SCHED/phy_procedures_lte_eNb.c @@ -2562,6 +2562,9 @@ void phy_procedures_eNB_common_RX(PHY_VARS_eNB *eNB,const uint8_t abstraction_fl //recv_IF4(eNB,subframe<<1); //recv_IF4(eNB,1+(subframe<<1)); + // Tobi aka mr monaco: ETH + + } else { // should not get here AssertFatal(1==0, "Unknown eNB->node_function %d",eNB->node_function); diff --git a/targets/DOCS/oai_L1_L2_procedures.pdf b/targets/DOCS/oai_L1_L2_procedures.pdf index 0f47195db1..89ec485956 100755 Binary files a/targets/DOCS/oai_L1_L2_procedures.pdf and b/targets/DOCS/oai_L1_L2_procedures.pdf differ