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280 lines
8.7 KiB
C
280 lines
8.7 KiB
C
/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2015 Software Radio Systems Limited
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*
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* \section LICENSE
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*
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* This file is part of the srsLTE library.
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*
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* srsLTE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* srsLTE is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* A copy of the GNU Affero General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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/**********************************************************************************************
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* File: phy_common.h
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*
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* Description: Common parameters and lookup functions for PHY
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*
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* Reference: 3GPP TS 36.211 version 10.0.0 Release 10
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*********************************************************************************************/
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#ifndef _LTEBASE_
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#define _LTEBASE_
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#include <stdio.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <math.h>
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#include "srslte/config.h"
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#define SRSLTE_NSUBFRAMES_X_FRAME 10
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#define SRSLTE_NSLOTS_X_FRAME (2*SRSLTE_NSUBFRAMES_X_FRAME)
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#define SRSLTE_NSOFT_BITS 250368 // Soft buffer size for Category 1 UE
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#define SRSLTE_PC_MAX 23 // Maximum TX power for Category 1 UE (in dBm)
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#define SRSLTE_MAX_PORTS 4
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#define SRSLTE_MAX_LAYERS 4
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#define SRSLTE_MAX_CODEWORDS 2
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#define SRSLTE_MAX_CODEBLOCKS 32
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#define SRSLTE_LTE_CRC24A 0x1864CFB
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#define SRSLTE_LTE_CRC24B 0X1800063
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#define SRSLTE_LTE_CRC16 0x11021
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#define SRSLTE_LTE_CRC8 0x19B
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typedef enum {SRSLTE_CP_NORM, SRSLTE_CP_EXT} srslte_cp_t;
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#define SRSLTE_CRNTI_START 0x000B
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#define SRSLTE_CRNTI_END 0xFFF3
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#define SRSLTE_RARNTI_START 0x0001
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#define SRSLTE_RARNTI_END 0x000A
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#define SRSLTE_SIRNTI 0xFFFF
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#define SRSLTE_PRNTI 0xFFFE
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#define SRSLTE_MRNTI 0xFFFD
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#define SRSLTE_CELL_ID_UNKNOWN 1000
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#define SRSLTE_MAX_NSYMB 7
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#define SRSLTE_MAX_PRB 110
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#define SRSLTE_NRE 12
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#define SRSLTE_SYMBOL_SZ_MAX 2048
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#define SRSLTE_CP_NORM_NSYMB 7
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#define SRSLTE_CP_NORM_SF_NSYMB (2*SRSLTE_CP_NORM_NSYMB)
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#define SRSLTE_CP_NORM_0_LEN 160
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#define SRSLTE_CP_NORM_LEN 144
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#define SRSLTE_CP_EXT_NSYMB 6
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#define SRSLTE_CP_EXT_SF_NSYMB (2*SRSLTE_CP_EXT_NSYMB)
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#define SRSLTE_CP_EXT_LEN 512
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#define SRSLTE_CP_EXT_7_5_LEN 1024
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#define SRSLTE_CP_ISNORM(cp) (cp==SRSLTE_CP_NORM)
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#define SRSLTE_CP_ISEXT(cp) (cp==SRSLTE_CP_EXT)
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#define SRSLTE_CP_NSYMB(cp) (SRSLTE_CP_ISNORM(cp)?SRSLTE_CP_NORM_NSYMB:SRSLTE_CP_EXT_NSYMB)
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#define SRSLTE_CP_LEN(symbol_sz, c) ((int) ceil((((float) (c)*(symbol_sz))/2048)))
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#define SRSLTE_CP_LEN_NORM(symbol, symbol_sz) ((symbol==0)?SRSLTE_CP_LEN((symbol_sz),SRSLTE_CP_NORM_0_LEN):SRSLTE_CP_LEN((symbol_sz),SRSLTE_CP_NORM_LEN))
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#define SRSLTE_CP_LEN_EXT(symbol_sz) (SRSLTE_CP_LEN((symbol_sz),SRSLTE_CP_EXT_LEN))
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#define SRSLTE_SLOT_LEN(symbol_sz) (symbol_sz*15/2)
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#define SRSLTE_SF_LEN(symbol_sz) (symbol_sz*15)
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#define SRSLTE_SF_LEN_MAX (SRSLTE_SF_LEN(SRSLTE_SYMBOL_SZ_MAX))
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#define SRSLTE_SLOT_LEN_PRB(nof_prb) (SRSLTE_SLOT_LEN(srslte_symbol_sz(nof_prb)))
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#define SRSLTE_SF_LEN_PRB(nof_prb) (SRSLTE_SF_LEN(srslte_symbol_sz(nof_prb)))
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#define SRSLTE_SLOT_LEN_RE(nof_prb, cp) (nof_prb*SRSLTE_NRE*SRSLTE_CP_NSYMB(cp))
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#define SRSLTE_SF_LEN_RE(nof_prb, cp) (2*SRSLTE_SLOT_LEN_RE(nof_prb, cp))
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#define SRSLTE_TA_OFFSET (10e-6)
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#define SRSLTE_LTE_TS 1.0/(15000.0*2048)
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#define SRSLTE_SLOT_IDX_CPNORM(symbol_idx, symbol_sz) (symbol_idx==0?0:(symbol_sz + SRSLTE_CP_LEN(symbol_sz, SRSLTE_CP_NORM_0_LEN) + \
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(symbol_idx-1)*(symbol_sz+SRSLTE_CP_LEN(symbol_sz, SRSLTE_CP_NORM_LEN))))
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#define SRSLTE_SLOT_IDX_CPEXT(idx, symbol_sz) (idx*(symbol_sz+SRSLTE_CP(symbol_sz, SRSLTE_CP_EXT_LEN)))
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#define SRSLTE_RE_IDX(nof_prb, symbol_idx, sample_idx) ((symbol_idx)*(nof_prb)*(SRSLTE_NRE) + sample_idx)
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#define SRSLTE_RS_VSHIFT(cell_id) (cell_id%6)
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#define SRSLTE_GUARD_RE(nof_prb) ((srslte_symbol_sz(nof_prb)-nof_prb*SRSLTE_NRE)/2)
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#define SRSLTE_SYMBOL_HAS_REF(l, cp, nof_ports) ((l == 1 && nof_ports == 4) \
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|| l == 0 \
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|| l == SRSLTE_CP_NSYMB(cp) - 3)
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#define SRSLTE_NOF_LTE_BANDS 38
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#define SRSLTE_DEFAULT_MAX_FRAMES_PBCH 500
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#define SRSLTE_DEFAULT_MAX_FRAMES_PSS 10
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#define SRSLTE_DEFAULT_NOF_VALID_PSS_FRAMES 10
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typedef enum SRSLTE_API {
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SRSLTE_PHICH_NORM = 0,
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SRSLTE_PHICH_EXT
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} srslte_phich_length_t;
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typedef enum SRSLTE_API {
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SRSLTE_PHICH_R_1_6 = 0,
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SRSLTE_PHICH_R_1_2,
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SRSLTE_PHICH_R_1,
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SRSLTE_PHICH_R_2
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} srslte_phich_resources_t;
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typedef enum {
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SRSLTE_RNTI_USER = 0,
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SRSLTE_RNTI_SI,
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SRSLTE_RNTI_RAR,
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SRSLTE_RNTI_TEMP,
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SRSLTE_RNTI_SPS,
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SRSLTE_RNTI_PCH,
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SRSLTE_RNTI_NOF_TYPES
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} srslte_rnti_type_t;
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typedef struct SRSLTE_API {
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uint32_t nof_prb;
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uint32_t nof_ports;
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uint32_t id;
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srslte_cp_t cp;
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srslte_phich_length_t phich_length;
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srslte_phich_resources_t phich_resources;
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}srslte_cell_t;
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typedef enum SRSLTE_API {
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SRSLTE_MIMO_TYPE_SINGLE_ANTENNA,
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SRSLTE_MIMO_TYPE_TX_DIVERSITY,
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SRSLTE_MIMO_TYPE_SPATIAL_MULTIPLEX,
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SRSLTE_MIMO_TYPE_CDD
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} srslte_mimo_type_t;
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typedef enum SRSLTE_API {
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SRSLTE_MOD_BPSK = 0,
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SRSLTE_MOD_QPSK,
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SRSLTE_MOD_16QAM,
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SRSLTE_MOD_64QAM
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} srslte_mod_t;
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typedef struct SRSLTE_API {
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int id;
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float fd;
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} srslte_earfcn_t;
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enum band_geographical_area {
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SRSLTE_BAND_GEO_AREA_ALL,
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SRSLTE_BAND_GEO_AREA_NAR,
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SRSLTE_BAND_GEO_AREA_APAC,
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SRSLTE_BAND_GEO_AREA_EMEA,
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SRSLTE_BAND_GEO_AREA_JAPAN,
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SRSLTE_BAND_GEO_AREA_CALA,
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SRSLTE_BAND_GEO_AREA_NA
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};
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SRSLTE_API bool srslte_cell_isvalid(srslte_cell_t *cell);
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SRSLTE_API void srslte_cell_fprint(FILE *stream,
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srslte_cell_t *cell,
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uint32_t sfn);
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SRSLTE_API bool srslte_cellid_isvalid(uint32_t cell_id);
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SRSLTE_API bool srslte_nofprb_isvalid(uint32_t nof_prb);
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SRSLTE_API bool srslte_sfidx_isvalid(uint32_t sf_idx);
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SRSLTE_API bool srslte_portid_isvalid(uint32_t port_id);
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SRSLTE_API bool srslte_N_id_2_isvalid(uint32_t N_id_2);
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SRSLTE_API bool srslte_N_id_1_isvalid(uint32_t N_id_1);
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SRSLTE_API bool srslte_symbol_sz_isvalid(uint32_t symbol_sz);
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SRSLTE_API int srslte_symbol_sz(uint32_t nof_prb);
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SRSLTE_API int srslte_symbol_sz_power2(uint32_t nof_prb);
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SRSLTE_API int srslte_nof_prb(uint32_t symbol_sz);
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SRSLTE_API int srslte_sampling_freq_hz(uint32_t nof_prb);
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SRSLTE_API void srslte_use_standard_symbol_size(bool enabled);
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SRSLTE_API uint32_t srslte_re_x_prb(uint32_t ns,
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uint32_t symbol,
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uint32_t nof_ports,
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uint32_t nof_symbols);
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SRSLTE_API uint32_t srslte_voffset(uint32_t symbol_id,
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uint32_t cell_id,
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uint32_t nof_ports);
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SRSLTE_API int srslte_group_hopping_f_gh(uint32_t f_gh[SRSLTE_NSLOTS_X_FRAME],
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uint32_t cell_id);
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SRSLTE_API uint32_t srslte_N_ta_new_rar(uint32_t ta);
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SRSLTE_API uint32_t srslte_N_ta_new(uint32_t N_ta_old,
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uint32_t ta);
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SRSLTE_API char *srslte_cp_string(srslte_cp_t cp);
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SRSLTE_API char *srslte_mod_string(srslte_mod_t mod);
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SRSLTE_API uint32_t srslte_mod_bits_x_symbol(srslte_mod_t mod);
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SRSLTE_API int srslte_band_get_band(uint32_t dl_earfcn);
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SRSLTE_API float srslte_band_fd(uint32_t dl_earfcn);
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SRSLTE_API float srslte_band_fu(uint32_t ul_earfcn);
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SRSLTE_API uint32_t srslte_band_ul_earfcn(uint32_t dl_earfcn);
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SRSLTE_API int srslte_band_get_fd_band(uint32_t band,
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srslte_earfcn_t *earfcn,
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int earfcn_start,
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int earfcn_end,
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uint32_t max_elems);
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SRSLTE_API int srslte_band_get_fd_band_all(uint32_t band,
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srslte_earfcn_t *earfcn,
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uint32_t max_nelems);
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SRSLTE_API int srslte_band_get_fd_region(enum band_geographical_area region,
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srslte_earfcn_t *earfcn,
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uint32_t max_elems);
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SRSLTE_API int srslte_str2mimotype(char *mimo_type_str,
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srslte_mimo_type_t *type);
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SRSLTE_API uint32_t srslte_tti_interval(uint32_t tti1,
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uint32_t tti2);
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#endif
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