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openairinterface5g/openair1/PHY/LTE_TRANSPORT/prach_extern.h
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/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
/*! \file PHY/LTE_TRANSPORT/prach_common.c
* \brief Common routines for UE/eNB PRACH physical channel V8.6 2009-03
* \author R. Knopp
* \date 2011
* \version 0.1
* \company Eurecom
* \email: knopp@eurecom.fr
* \note
* \warning
*/
#ifndef __PHY_LTE_TRANSPORT_PRACH_EXTERN__H__
#define __PHY_LTE_TRANSPORT_PRACH_EXTERN__H__
#include "PHY/sse_intrin.h"
#include "PHY/defs_eNB.h"
//#include "PHY/phy_extern.h"
//#define PRACH_DEBUG 1
//#define PRACH_WRITE_OUTPUT_DEBUG 1
extern const uint16_t NCS_unrestricted[16];
extern const uint16_t NCS_restricted[15];
extern const uint16_t NCS_4[7];
extern int16_t ru[2 * 839]; // quantized roots of unity
extern uint16_t du[838];
// This is table 5.7.1-4 from 36.211
extern PRACH_TDD_PREAMBLE_MAP tdd_preamble_map[64][7];
extern uint16_t prach_root_sequence_map0_3[838];
extern uint16_t prach_root_sequence_map4[138];
void dump_prach_config(LTE_DL_FRAME_PARMS *frame_parms,uint8_t subframe);
// This function computes the du
void fill_du(uint8_t prach_fmt);
uint8_t get_num_prach_tdd(module_id_t Mod_id);
uint8_t get_fid_prach_tdd(module_id_t Mod_id,uint8_t tdd_map_index);
int is_prach_subframe(LTE_DL_FRAME_PARMS *frame_parms,uint32_t frame, uint8_t subframe);
#endif