transport_proto_ue.h 76.3 KB
Newer Older
1 2 3 4 5
/*
 * 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
Cedric Roux's avatar
Cedric Roux committed
6
 * the OAI Public License, Version 1.1  (the "License"); you may not use this file
7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
 * 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
 */

knopp's avatar
knopp committed
22
/*! \file PHY/LTE_UE_TRANSPORT/transport_proto_ue.h
23 24 25 26 27 28 29 30 31
 * \brief Function prototypes for PHY physical/transport channel processing and generation V8.6 2009-03
 * \author R. Knopp, F. Kaltenberger
 * \date 2011
 * \version 0.1
 * \company Eurecom
 * \email: knopp@eurecom.fr
 * \note
 * \warning
 */
32 33 34
#ifndef __LTE_TRANSPORT_PROTO_UE__H__
#define __LTE_TRANSPORT_PROTO_UE__H__
#include "PHY/defs_UE.h"
knopp's avatar
knopp committed
35
#include "PHY/LTE_TRANSPORT/transport_common_proto.h"
36
#include <math.h>
37
#include "nfapi_interface.h"
38 39 40 41 42 43 44 45 46 47 48 49 50

// Functions below implement 36-211 and 36-212

/** @addtogroup _PHY_TRANSPORT_
 * @{
 */

/** \fn free_ue_dlsch(LTE_UE_DLSCH_t *dlsch)
    \brief This function frees memory allocated for a particular DLSCH at UE
    @param dlsch Pointer to DLSCH to be removed
*/
void free_ue_dlsch(LTE_UE_DLSCH_t *dlsch);

51
/** \fn new_ue_dlsch(uint8_t Kmimo,uint8_t Mdlharq,uint32_t Nsoft,uint8_t abstraction_flag)
52
    \brief This function allocates structures for a particular DLSCH at UE
53 54 55 56 57 58 59 60
    @returns Pointer to DLSCH to be removed
    @param Kmimo Kmimo factor from 36-212/36-213
    @param Mdlharq Maximum number of HARQ rounds (36-212/36-213)
    @param Nsoft Soft-LLR buffer size from UE-Category
    @params N_RB_DL total number of resource blocks (determine the operating BW)
    @param abstraction_flag Flag to indicate abstracted interface
*/
LTE_UE_DLSCH_t *new_ue_dlsch(uint8_t Kmimo,uint8_t Mdlharq,uint32_t Nsoft,uint8_t max_turbo_iterations,uint8_t N_RB_DL, uint8_t abstraction_flag);
61 62 63 64 65


void free_ue_ulsch(LTE_UE_ULSCH_t *ulsch);


66
LTE_UE_ULSCH_t *new_ue_ulsch(unsigned char N_RB_UL, uint8_t abstraction_flag);
67

knopp's avatar
knopp committed
68
void fill_UE_dlsch_MCH(PHY_VARS_UE *ue,int mcs,int ndi,int rvidx,int eNB_id);
69 70

int rx_pmch(PHY_VARS_UE *phy_vars_ue,
71 72 73
            unsigned char eNB_id,
            uint8_t subframe,
            unsigned char symbol);
74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91

/** \brief Dump OCTAVE/MATLAB files for PMCH debugging
    @param phy_vars_ue Pointer to UE variables
    @param eNB_id index of eNB in ue variables
    @param coded_bits_per_codeword G from 36.211
    @param subframe Index of subframe
    @returns 0 on success
*/
void dump_mch(PHY_VARS_UE *phy_vars_ue,uint8_t eNB_id,uint16_t coded_bits_per_codeword,int subframe);



/** \brief This function computes the LLRs for ML (max-logsum approximation) dual-stream QPSK/QPSK reception.
    @param stream0_in Input from channel compensated (MR combined) stream 0
    @param stream1_in Input from channel compensated (MR combined) stream 1
    @param stream0_out Output from LLR unit for stream0
    @param rho01 Cross-correlation between channels (MR combined)
    @param length in complex channel outputs*/
gauthier's avatar
gauthier committed
92
void qpsk_qpsk(int16_t *stream0_in,
93 94 95 96
               int16_t *stream1_in,
               int16_t *stream0_out,
               int16_t *rho01,
               int32_t length);
97 98 99 100 101 102 103 104 105 106 107 108

/** \brief This function perform LLR computation for dual-stream (QPSK/QPSK) transmission.
    @param frame_parms Frame descriptor structure
    @param rxdataF_comp Compensated channel output
    @param rxdataF_comp_i Compensated channel output for interference
    @param rho_i Correlation between channel of signal and inteference
    @param dlsch_llr llr output
    @param symbol OFDM symbol index in sub-frame
    @param first_symbol_flag flag to indicate this is the first symbol of the dlsch
    @param nb_rb number of RBs for this allocation
    @param pbch_pss_sss_adj Number of channel bits taken by PBCH/PSS/SSS
    @param llr128p pointer to pointer to symbol in dlsch_llr*/
gauthier's avatar
gauthier committed
109
int32_t dlsch_qpsk_qpsk_llr(LTE_DL_FRAME_PARMS *frame_parms,
110 111 112 113 114 115 116 117 118
                            int32_t **rxdataF_comp,
                            int32_t **rxdataF_comp_i,
                            int32_t **rho_i,
                            int16_t *dlsch_llr,
                            uint8_t symbol,
                            uint8_t first_symbol_flag,
                            uint16_t nb_rb,
                            uint16_t pbch_pss_sss_adj,
                            int16_t **llr128p);
119 120 121 122 123 124 125 126

/** \brief This function computes the LLRs for ML (max-logsum approximation) dual-stream QPSK/16QAM reception.
    @param stream0_in Input from channel compensated (MR combined) stream 0
    @param stream1_in Input from channel compensated (MR combined) stream 1
    @param ch_mag_i Input from scaled channel magnitude square of h0'*g1
    @param stream0_out Output from LLR unit for stream0
    @param rho01 Cross-correlation between channels (MR combined)
    @param length in complex channel outputs*/
gauthier's avatar
gauthier committed
127 128
void qpsk_qam16(int16_t *stream0_in,
                int16_t *stream1_in,
129
                short *ch_mag_i,
gauthier's avatar
gauthier committed
130 131 132
                int16_t *stream0_out,
                int16_t *rho01,
                int32_t length);
133 134 135 136 137 138 139 140 141 142 143 144

/** \brief This function perform LLR computation for dual-stream (QPSK/16QAM) transmission.
    @param frame_parms Frame descriptor structure
    @param rxdataF_comp Compensated channel output
    @param rxdataF_comp_i Compensated channel output for interference
    @param rho_i Correlation between channel of signal and inteference
    @param dlsch_llr llr output
    @param symbol OFDM symbol index in sub-frame
    @param first_symbol_flag flag to indicate this is the first symbol of the dlsch
    @param nb_rb number of RBs for this allocation
    @param pbch_pss_sss_adj Number of channel bits taken by PBCH/PSS/SSS
    @param llr128p pointer to pointer to symbol in dlsch_llr*/
gauthier's avatar
gauthier committed
145
int32_t dlsch_qpsk_16qam_llr(LTE_DL_FRAME_PARMS *frame_parms,
146 147 148 149 150 151 152 153 154 155
                             int32_t **rxdataF_comp,
                             int32_t **rxdataF_comp_i,
                             int **dl_ch_mag_i, //|h_1|^2*(2/sqrt{10})
                             int32_t **rho_i,
                             int16_t *dlsch_llr,
                             uint8_t symbol,
                             uint8_t first_symbol_flag,
                             uint16_t nb_rb,
                             uint16_t pbch_pss_sss_adj,
                             int16_t **llr128p);
156 157 158 159 160 161 162 163

/** \brief This function computes the LLRs for ML (max-logsum approximation) dual-stream QPSK/64QAM reception.
    @param stream0_in Input from channel compensated (MR combined) stream 0
    @param stream1_in Input from channel compensated (MR combined) stream 1
    @param ch_mag_i Input from scaled channel magnitude square of h0'*g1
    @param stream0_out Output from LLR unit for stream0
    @param rho01 Cross-correlation between channels (MR combined)
    @param length in complex channel outputs*/
gauthier's avatar
gauthier committed
164 165
void qpsk_qam64(int16_t *stream0_in,
                int16_t *stream1_in,
166
                short *ch_mag_i,
gauthier's avatar
gauthier committed
167 168 169
                int16_t *stream0_out,
                int16_t *rho01,
                int32_t length);
170 171 172 173 174 175 176 177 178 179 180 181

/** \brief This function perform LLR computation for dual-stream (QPSK/64QAM) transmission.
    @param frame_parms Frame descriptor structure
    @param rxdataF_comp Compensated channel output
    @param rxdataF_comp_i Compensated channel output for interference
    @param rho_i Correlation between channel of signal and inteference
    @param dlsch_llr llr output
    @param symbol OFDM symbol index in sub-frame
    @param first_symbol_flag flag to indicate this is the first symbol of the dlsch
    @param nb_rb number of RBs for this allocation
    @param pbch_pss_sss_adj Number of channel bits taken by PBCH/PSS/SSS
    @param llr128p pointer to pointer to symbol in dlsch_llr*/
gauthier's avatar
gauthier committed
182
int32_t dlsch_qpsk_64qam_llr(LTE_DL_FRAME_PARMS *frame_parms,
183 184 185 186 187 188 189 190 191 192
                             int32_t **rxdataF_comp,
                             int32_t **rxdataF_comp_i,
                             int **dl_ch_mag_i, //|h_1|^2*(2/sqrt{10})
                             int32_t **rho_i,
                             int16_t *dlsch_llr,
                             uint8_t symbol,
                             uint8_t first_symbol_flag,
                             uint16_t nb_rb,
                             uint16_t pbch_pss_sss_adj,
                             int16_t **llr128p);
193 194 195 196 197 198 199 200 201 202 203 204 205 206


/** \brief This function computes the LLRs for ML (max-logsum approximation) dual-stream 16QAM/QPSK reception.
    @param stream0_in Input from channel compensated (MR combined) stream 0
    @param stream1_in Input from channel compensated (MR combined) stream 1
    @param ch_mag   Input from scaled channel magnitude square of h0'*g0
    @param stream0_out Output from LLR unit for stream0
    @param rho01 Cross-correlation between channels (MR combined)
    @param length in complex channel outputs*/
void qam16_qpsk(short *stream0_in,
                short *stream1_in,
                short *ch_mag,
                short *stream0_out,
                short *rho01,
207
                int length);
208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369
/** \brief This function perform LLR computation for dual-stream (16QAM/QPSK) transmission.
    @param frame_parms Frame descriptor structure
    @param rxdataF_comp Compensated channel output
    @param rxdataF_comp_i Compensated channel output for interference
    @param ch_mag   Input from scaled channel magnitude square of h0'*g0
    @param rho_i Correlation between channel of signal and inteference
    @param dlsch_llr llr output
    @param symbol OFDM symbol index in sub-frame
    @param first_symbol_flag flag to indicate this is the first symbol of the dlsch
    @param nb_rb number of RBs for this allocation
    @param pbch_pss_sss_adj Number of channel bits taken by PBCH/PSS/SSS
    @param llr16p pointer to pointer to symbol in dlsch_llr*/
int dlsch_16qam_qpsk_llr(LTE_DL_FRAME_PARMS *frame_parms,
                         int **rxdataF_comp,
                         int **rxdataF_comp_i,
                         int **dl_ch_mag,   //|h_0|^2*(2/sqrt{10})
                         int **rho_i,
                         short *dlsch_llr,
                         unsigned char symbol,
                         unsigned char first_symbol_flag,
                         unsigned short nb_rb,
                         uint16_t pbch_pss_sss_adjust,
                         short **llr16p);

/** \brief This function computes the LLRs for ML (max-logsum approximation) dual-stream 16QAM/16QAM reception.
    @param stream0_in Input from channel compensated (MR combined) stream 0
    @param stream1_in Input from channel compensated (MR combined) stream 1
    @param ch_mag   Input from scaled channel magnitude square of h0'*g0
    @param ch_mag_i Input from scaled channel magnitude square of h0'*g1
    @param stream0_out Output from LLR unit for stream0
    @param rho01 Cross-correlation between channels (MR combined)
    @param length in complex channel outputs*/
void qam16_qam16(short *stream0_in,
                 short *stream1_in,
                 short *ch_mag,
                 short *ch_mag_i,
                 short *stream0_out,
                 short *rho01,
                 int length);

/** \brief This function perform LLR computation for dual-stream (16QAM/16QAM) transmission.
    @param frame_parms Frame descriptor structure
    @param rxdataF_comp Compensated channel output
    @param rxdataF_comp_i Compensated channel output for interference
    @param ch_mag   Input from scaled channel magnitude square of h0'*g0
    @param ch_mag_i Input from scaled channel magnitude square of h0'*g1
    @param rho_i Correlation between channel of signal and inteference
    @param dlsch_llr llr output
    @param symbol OFDM symbol index in sub-frame
    @param first_symbol_flag flag to indicate this is the first symbol of the dlsch
    @param nb_rb number of RBs for this allocation
    @param pbch_pss_sss_adj Number of channel bits taken by PBCH/PSS/SSS
    @param llr16p pointer to pointer to symbol in dlsch_llr*/
int dlsch_16qam_16qam_llr(LTE_DL_FRAME_PARMS *frame_parms,
                          int **rxdataF_comp,
                          int **rxdataF_comp_i,
                          int **dl_ch_mag,   //|h_0|^2*(2/sqrt{10})
                          int **dl_ch_mag_i, //|h_1|^2*(2/sqrt{10})
                          int **rho_i,
                          short *dlsch_llr,
                          unsigned char symbol,
                          unsigned char first_symbol_flag,
                          unsigned short nb_rb,
                          uint16_t pbch_pss_sss_adjust,
                          short **llr16p);

/** \brief This function computes the LLRs for ML (max-logsum approximation) dual-stream 16QAM/64QAM reception.
    @param stream0_in Input from channel compensated (MR combined) stream 0
    @param stream1_in Input from channel compensated (MR combined) stream 1
    @param ch_mag   Input from scaled channel magnitude square of h0'*g0
    @param ch_mag_i Input from scaled channel magnitude square of h0'*g1
    @param stream0_out Output from LLR unit for stream0
    @param rho01 Cross-correlation between channels (MR combined)
    @param length in complex channel outputs*/
void qam16_qam64(short *stream0_in,
                 short *stream1_in,
                 short *ch_mag,
                 short *ch_mag_i,
                 short *stream0_out,
                 short *rho01,
                 int length);

/** \brief This function perform LLR computation for dual-stream (16QAM/64QAM) transmission.
    @param frame_parms Frame descriptor structure
    @param rxdataF_comp Compensated channel output
    @param rxdataF_comp_i Compensated channel output for interference
    @param ch_mag   Input from scaled channel magnitude square of h0'*g0
    @param ch_mag_i Input from scaled channel magnitude square of h0'*g1
    @param rho_i Correlation between channel of signal and inteference
    @param dlsch_llr llr output
    @param symbol OFDM symbol index in sub-frame
    @param first_symbol_flag flag to indicate this is the first symbol of the dlsch
    @param nb_rb number of RBs for this allocation
    @param pbch_pss_sss_adj Number of channel bits taken by PBCH/PSS/SSS
    @param llr16p pointer to pointer to symbol in dlsch_llr*/
int dlsch_16qam_64qam_llr(LTE_DL_FRAME_PARMS *frame_parms,
                          int **rxdataF_comp,
                          int **rxdataF_comp_i,
                          int **dl_ch_mag,   //|h_0|^2*(2/sqrt{10})
                          int **dl_ch_mag_i, //|h_1|^2*(2/sqrt{10})
                          int **rho_i,
                          short *dlsch_llr,
                          unsigned char symbol,
                          unsigned char first_symbol_flag,
                          unsigned short nb_rb,
                          uint16_t pbch_pss_sss_adjust,
                          short **llr16p);

/** \brief This function computes the LLRs for ML (max-logsum approximation) dual-stream 64QAM/64QAM reception.
    @param stream0_in Input from channel compensated (MR combined) stream 0
    @param stream1_in Input from channel compensated (MR combined) stream 1
    @param ch_mag   Input from scaled channel magnitude square of h0'*g0
    @param stream0_out Output from LLR unit for stream0
    @param rho01 Cross-correlation between channels (MR combined)
    @param length in complex channel outputs*/
void qam64_qpsk(short *stream0_in,
                short *stream1_in,
                short *ch_mag,
                short *stream0_out,
                short *rho01,
                int length);

/** \brief This function perform LLR computation for dual-stream (64QAM/64QAM) transmission.
    @param frame_parms Frame descriptor structure
    @param rxdataF_comp Compensated channel output
    @param rxdataF_comp_i Compensated channel output for interference
    @param ch_mag   Input from scaled channel magnitude square of h0'*g0
    @param rho_i Correlation between channel of signal and inteference
    @param dlsch_llr llr output
    @param symbol OFDM symbol index in sub-frame
    @param first_symbol_flag flag to indicate this is the first symbol of the dlsch
    @param nb_rb number of RBs for this allocation
    @param pbch_pss_sss_adj Number of channel bits taken by PBCH/PSS/SSS
    @param llr16p pointer to pointer to symbol in dlsch_llr*/
int dlsch_64qam_qpsk_llr(LTE_DL_FRAME_PARMS *frame_parms,
                         int **rxdataF_comp,
                         int **rxdataF_comp_i,
                         int **dl_ch_mag,
                         int **rho_i,
                         short *dlsch_llr,
                         unsigned char symbol,
                         unsigned char first_symbol_flag,
                         unsigned short nb_rb,
                         uint16_t pbch_pss_sss_adjust,
                         short **llr16p);

/** \brief This function computes the LLRs for ML (max-logsum approximation) dual-stream 64QAM/16QAM reception.
    @param stream0_in Input from channel compensated (MR combined) stream 0
    @param stream1_in Input from channel compensated (MR combined) stream 1
    @param ch_mag   Input from scaled channel magnitude square of h0'*g0
    @param ch_mag_i Input from scaled channel magnitude square of h0'*g1
    @param stream0_out Output from LLR unit for stream0
    @param rho01 Cross-correlation between channels (MR combined)
    @param length in complex channel outputs*/
void qam64_qam16(short *stream0_in,
                 short *stream1_in,
                 short *ch_mag,
                 short *ch_mag_i,
                 short *stream0_out,
                 short *rho01,
                 int length);

370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385
/** \brief This function computes the LLRs for ML (max-logsum approximation) dual-stream 64QAM/16QAM reception.
    @param stream0_in Input from channel compensated (MR combined) stream 0
    @param stream1_in Input from channel compensated (MR combined) stream 1
    @param ch_mag   Input from scaled channel magnitude square of h0'*g0
    @param ch_mag_i Input from scaled channel magnitude square of h0'*g1
    @param stream0_out Output from LLR unit for stream0
    @param rho01 Cross-correlation between channels (MR combined)
    @param length in complex channel outputs*/
void qam64_qam16_avx2(short *stream0_in,
                      short *stream1_in,
                      short *ch_mag,
                      short *ch_mag_i,
                      short *stream0_out,
                      short *rho01,
                      int length);

386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427
/** \brief This function perform LLR computation for dual-stream (64QAM/16QAM) transmission.
    @param frame_parms Frame descriptor structure
    @param rxdataF_comp Compensated channel output
    @param rxdataF_comp_i Compensated channel output for interference
    @param ch_mag   Input from scaled channel magnitude square of h0'*g0
    @param ch_mag_i Input from scaled channel magnitude square of h0'*g1
    @param rho_i Correlation between channel of signal and inteference
    @param dlsch_llr llr output
    @param symbol OFDM symbol index in sub-frame
    @param first_symbol_flag flag to indicate this is the first symbol of the dlsch
    @param nb_rb number of RBs for this allocation
    @param pbch_pss_sss_adj Number of channel bits taken by PBCH/PSS/SSS
    @param llr16p pointer to pointer to symbol in dlsch_llr*/
int dlsch_64qam_16qam_llr(LTE_DL_FRAME_PARMS *frame_parms,
                          int **rxdataF_comp,
                          int **rxdataF_comp_i,
                          int **dl_ch_mag,
                          int **dl_ch_mag_i,
                          int **rho_i,
                          short *dlsch_llr,
                          unsigned char symbol,
                          unsigned char first_symbol_flag,
                          unsigned short nb_rb,
                          uint16_t pbch_pss_sss_adjust,
                          short **llr16p);

/** \brief This function computes the LLRs for ML (max-logsum approximation) dual-stream 64QAM/64QAM reception.
    @param stream0_in Input from channel compensated (MR combined) stream 0
    @param stream1_in Input from channel compensated (MR combined) stream 1
    @param ch_mag   Input from scaled channel magnitude square of h0'*g0
    @param ch_mag_i Input from scaled channel magnitude square of h0'*g1
    @param stream0_out Output from LLR unit for stream0
    @param rho01 Cross-correlation between channels (MR combined)
    @param length in complex channel outputs*/
void qam64_qam64(short *stream0_in,
                 short *stream1_in,
                 short *ch_mag,
                 short *ch_mag_i,
                 short *stream0_out,
                 short *rho01,
                 int length);

428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443
/** \brief This function computes the LLRs for ML (max-logsum approximation) dual-stream 64QAM/64QAM reception.
    @param stream0_in Input from channel compensated (MR combined) stream 0
    @param stream1_in Input from channel compensated (MR combined) stream 1
    @param ch_mag   Input from scaled channel magnitude square of h0'*g0
    @param ch_mag_i Input from scaled channel magnitude square of h0'*g1
    @param stream0_out Output from LLR unit for stream0
    @param rho01 Cross-correlation between channels (MR combined)
    @param length in complex channel outputs*/
void qam64_qam64_avx2(int32_t *stream0_in,
                      int32_t *stream1_in,
                      int32_t *ch_mag,
                      int32_t *ch_mag_i,
                      int16_t *stream0_out,
                      int32_t *rho01,
                      int length);

444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467
/** \brief This function perform LLR computation for dual-stream (64QAM/64QAM) transmission.
    @param frame_parms Frame descriptor structure
    @param rxdataF_comp Compensated channel output
    @param rxdataF_comp_i Compensated channel output for interference
    @param ch_mag   Input from scaled channel magnitude square of h0'*g0
    @param ch_mag_i Input from scaled channel magnitude square of h0'*g1
    @param rho_i Correlation between channel of signal and inteference
    @param dlsch_llr llr output
    @param symbol OFDM symbol index in sub-frame
    @param first_symbol_flag flag to indicate this is the first symbol of the dlsch
    @param nb_rb number of RBs for this allocation
    @param pbch_pss_sss_adj Number of channel bits taken by PBCH/PSS/SSS
    @param llr16p pointer to pointer to symbol in dlsch_llr*/
int dlsch_64qam_64qam_llr(LTE_DL_FRAME_PARMS *frame_parms,
                          int **rxdataF_comp,
                          int **rxdataF_comp_i,
                          int **dl_ch_mag,
                          int **dl_ch_mag_i,
                          int **rho_i,
                          short *dlsch_llr,
                          unsigned char symbol,
                          unsigned char first_symbol_flag,
                          unsigned short nb_rb,
                          uint16_t pbch_pss_sss_adjust,
468 469
                          //short **llr16p,
                          uint32_t llr_offset);
470 471 472 473 474 475 476


/** \brief This function generates log-likelihood ratios (decoder input) for single-stream QPSK received waveforms.
    @param frame_parms Frame descriptor structure
    @param rxdataF_comp Compensated channel output
    @param dlsch_llr llr output
    @param symbol OFDM symbol index in sub-frame
477
    @param first_symbol_flag
478 479 480
    @param nb_rb number of RBs for this allocation
    @param pbch_pss_sss_adj Number of channel bits taken by PBCH/PSS/SSS
    @param llr128p pointer to pointer to symbol in dlsch_llr
481
    @param beamforming_mode beamforming mode
482
*/
gauthier's avatar
gauthier committed
483
int32_t dlsch_qpsk_llr(LTE_DL_FRAME_PARMS *frame_parms,
484 485 486 487 488 489
                       int32_t **rxdataF_comp,
                       int16_t *dlsch_llr,
                       uint8_t symbol,
                       uint8_t first_symbol_flag,
                       uint16_t nb_rb,
                       uint16_t pbch_pss_sss_adj,
490
                       //int16_t **llr128p,
491
                       uint8_t beamforming_mode);
492 493 494 495 496 497 498 499 500 501 502 503

/**
   \brief This function generates log-likelihood ratios (decoder input) for single-stream 16QAM received waveforms
   @param frame_parms Frame descriptor structure
   @param rxdataF_comp Compensated channel output
   @param dlsch_llr llr output
   @param dl_ch_mag Squared-magnitude of channel in each resource element position corresponding to allocation and weighted for mid-point in 16QAM constellation
   @param symbol OFDM symbol index in sub-frame
   @param first_symbol_flag
   @param nb_rb number of RBs for this allocation
   @param pbch_pss_sss_adjust  Adjustment factor in RE for PBCH/PSS/SSS allocations
   @param llr128p pointer to pointer to symbol in dlsch_llr
504
   @param beamforming_mode beamforming mode
505 506
*/

Elena Lukashova's avatar
Elena Lukashova committed
507
int32_t dlsch_qpsk_llr_SIC(LTE_DL_FRAME_PARMS *frame_parms,
508 509 510 511 512 513 514
                           int **rxdataF_comp,
                           int32_t **sic_buffer,
                           int **rho_i,
                           short *dlsch_llr,
                           uint8_t num_pdcch_symbols,
                           uint16_t nb_rb,
                           uint8_t subframe,
Elena Lukashova's avatar
Elena Lukashova committed
515
                           uint16_t mod_order_0,
516
                           uint32_t rb_alloc);
Elena Lukashova's avatar
Elena Lukashova committed
517

518
void dlsch_16qam_llr(LTE_DL_FRAME_PARMS *frame_parms,
519 520 521 522 523 524 525
                     int32_t **rxdataF_comp,
                     int16_t *dlsch_llr,
                     int32_t **dl_ch_mag,
                     uint8_t symbol,
                     uint8_t first_symbol_flag,
                     uint16_t nb_rb,
                     uint16_t pbch_pss_sss_adjust,
526 527
                     int16_t **llr128p,
                     uint8_t beamforming_mode);
528 529 530 531 532 533 534 535 536 537 538
/**
   \brief This function generates log-likelihood ratios (decoder input) for single-stream 16QAM received waveforms
   @param frame_parms Frame descriptor structure
   @param rxdataF_comp Compensated channel output
   @param dlsch_llr llr output
   @param dl_ch_mag Squared-magnitude of channel in each resource element position corresponding to allocation, weighted by first mid-point of 64-QAM constellation
   @param dl_ch_magb Squared-magnitude of channel in each resource element position corresponding to allocation, weighted by second mid-point of 64-QAM constellation
   @param symbol OFDM symbol index in sub-frame
   @param first_symbol_flag
   @param nb_rb number of RBs for this allocation
   @param pbch_pss_sss_adjust PBCH/PSS/SSS RE adjustment (in REs)
539
   @param beamforming_mode beamforming mode
540
*/
541 542
void dlsch_16qam_llr_SIC (LTE_DL_FRAME_PARMS *frame_parms,
                          int32_t **rxdataF_comp,
543 544 545 546 547 548 549
                          int32_t **sic_buffer,  //Q15
                          int32_t **rho_i,
                          int16_t *dlsch_llr,
                          uint8_t num_pdcch_symbols,
                          int32_t **dl_ch_mag,
                          uint16_t nb_rb,
                          uint8_t subframe,
550
                          uint16_t mod_order_0,
551
                          uint32_t rb_alloc);
Elena Lukashova's avatar
Elena Lukashova committed
552

553
void dlsch_64qam_llr_SIC(LTE_DL_FRAME_PARMS *frame_parms,
Elena Lukashova's avatar
Elena Lukashova committed
554
                         int32_t **rxdataF_comp,
555 556 557 558 559 560 561 562
                         int32_t **sic_buffer,  //Q15
                         int32_t **rho_i,
                         int16_t *dlsch_llr,
                         uint8_t num_pdcch_symbols,
                         int32_t **dl_ch_mag,
                         int32_t **dl_ch_magb,
                         uint16_t nb_rb,
                         uint8_t subframe,
563
                         uint16_t mod_order_0,
564
                         uint32_t rb_alloc);
565

Elena Lukashova's avatar
Elena Lukashova committed
566

567
void dlsch_64qam_llr(LTE_DL_FRAME_PARMS *frame_parms,
568 569 570 571 572 573 574 575
                     int32_t **rxdataF_comp,
                     int16_t *dlsch_llr,
                     int32_t **dl_ch_mag,
                     int32_t **dl_ch_magb,
                     uint8_t symbol,
                     uint8_t first_symbol_flag,
                     uint16_t nb_rb,
                     uint16_t pbch_pss_sss_adjust,
576 577
                     //int16_t **llr_save,
                     uint32_t llr_offset,
578
                     uint8_t beamforming_mode);
579

Elena Lukashova's avatar
Elena Lukashova committed
580

581
/** \fn dlsch_siso(LTE_DL_FRAME_PARMS *frame_parms,
gauthier's avatar
gauthier committed
582 583
    int32_t **rxdataF_comp,
    int32_t **rxdataF_comp_i,
584 585 586 587 588 589 590 591 592 593 594
    uint8_t l,
    uint16_t nb_rb)
    \brief This function does the first stage of llr computation for SISO, by just extracting the pilots, PBCH and primary/secondary synchronization sequences.
    @param frame_parms Frame descriptor structure
    @param rxdataF_comp Compensated channel output
    @param rxdataF_comp_i Compensated channel output for interference
    @param l symbol in sub-frame
    @param nb_rb Number of RBs in this allocation
*/

void dlsch_siso(LTE_DL_FRAME_PARMS *frame_parms,
595 596 597 598
                int32_t **rxdataF_comp,
                int32_t **rxdataF_comp_i,
                uint8_t l,
                uint16_t nb_rb);
599 600

/** \fn dlsch_alamouti(LTE_DL_FRAME_PARMS *frame_parms,
gauthier's avatar
gauthier committed
601 602 603
    int32_t **rxdataF_comp,
    int32_t **dl_ch_mag,
    int32_t **dl_ch_magb,
604 605 606 607 608 609 610 611 612 613 614
    uint8_t symbol,
    uint16_t nb_rb)
    \brief This function does Alamouti combining on RX and prepares LLR inputs by skipping pilots, PBCH and primary/secondary synchronization signals.
    @param frame_parms Frame descriptor structure
    @param rxdataF_comp Compensated channel output
    @param dl_ch_mag First squared-magnitude of channel (16QAM and 64QAM) for LLR computation.  Alamouti combining should be performed on this as well. Result is stored in first antenna position
    @param dl_ch_magb Second squared-magnitude of channel (64QAM only) for LLR computation.  Alamouti combining should be performed on this as well. Result is stored in first antenna position
    @param symbol Symbol in sub-frame
    @param nb_rb Number of RBs in this allocation
*/
void dlsch_alamouti(LTE_DL_FRAME_PARMS *frame_parms,
615 616 617 618 619
                    int32_t **rxdataF_comp,
                    int32_t **dl_ch_mag,
                    int32_t **dl_ch_magb,
                    uint8_t symbol,
                    uint16_t nb_rb);
620 621

/** \fn dlsch_antcyc(LTE_DL_FRAME_PARMS *frame_parms,
gauthier's avatar
gauthier committed
622 623 624
    int32_t **rxdataF_comp,
    int32_t **dl_ch_mag,
    int32_t **dl_ch_magb,
625 626 627 628 629 630 631 632 633 634 635
    uint8_t symbol,
    uint16_t nb_rb)
    \brief This function does antenna selection (based on antenna cycling pattern) on RX and prepares LLR inputs by skipping pilots, PBCH and primary/secondary synchronization signals.  Note that this is not LTE, it is just included for comparison purposes.
    @param frame_parms Frame descriptor structure
    @param rxdataF_comp Compensated channel output
    @param dl_ch_mag First squared-magnitude of channel (16QAM and 64QAM) for LLR computation.  Alamouti combining should be performed on this as well. Result is stored in first antenna position
    @param dl_ch_magb Second squared-magnitude of channel (64QAM only) for LLR computation.  Alamouti combining should be performed on this as well. Result is stored in first antenna position
    @param symbol Symbol in sub-frame
    @param nb_rb Number of RBs in this allocation
*/
void dlsch_antcyc(LTE_DL_FRAME_PARMS *frame_parms,
636 637 638 639 640
                  int32_t **rxdataF_comp,
                  int32_t **dl_ch_mag,
                  int32_t **dl_ch_magb,
                  uint8_t symbol,
                  uint16_t nb_rb);
641 642

/** \fn dlsch_detection_mrc(LTE_DL_FRAME_PARMS *frame_parms,
gauthier's avatar
gauthier committed
643 644 645 646 647 648
    int32_t **rxdataF_comp,
    int32_t **rxdataF_comp_i,
    int32_t **rho,
    int32_t **rho_i,
    int32_t **dl_ch_mag,
    int32_t **dl_ch_magb,
649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665
    uint8_t symbol,
    uint16_t nb_rb,
    uint8_t dual_stream_UE)

    \brief This function does maximal-ratio combining for dual-antenna receivers.
    @param frame_parms Frame descriptor structure
    @param rxdataF_comp Compensated channel output
    @param rxdataF_comp_i Compensated channel output for interference
    @param rho Cross correlation between spatial channels
    @param rho_i Cross correlation between signal and inteference channels
    @param dl_ch_mag First squared-magnitude of channel (16QAM and 64QAM) for LLR computation.  Alamouti combining should be performed on this as well. Result is stored in first antenna position
    @param dl_ch_magb Second squared-magnitude of channel (64QAM only) for LLR computation.  Alamouti combining should be performed on this as well. Result is stored in first antenna position
    @param symbol Symbol in sub-frame
    @param nb_rb Number of RBs in this allocation
    @param dual_stream_UE Flag to indicate dual-stream detection
*/
void dlsch_detection_mrc(LTE_DL_FRAME_PARMS *frame_parms,
666 667 668 669 670 671 672 673 674 675 676
                         int32_t **rxdataF_comp,
                         int32_t **rxdataF_comp_i,
                         int32_t **rho,
                         int32_t **rho_i,
                         int32_t **dl_ch_mag,
                         int32_t **dl_ch_magb,
                         int32_t **dl_ch_mag_i,
                         int32_t **dl_ch_magb_i,
                         uint8_t symbol,
                         uint16_t nb_rb,
                         uint8_t dual_stream_UE);
677

678
void dlsch_detection_mrc_TM34(LTE_DL_FRAME_PARMS *frame_parms,
679 680 681 682 683 684
                              LTE_UE_PDSCH *lte_ue_pdsch_vars,
                              int harq_pid,
                              int round,
                              unsigned char symbol,
                              unsigned short nb_rb,
                              unsigned char dual_stream_UE);
685

gauthier's avatar
gauthier committed
686 687 688 689
/** \fn dlsch_extract_rbs_single(int32_t **rxdataF,
    int32_t **dl_ch_estimates,
    int32_t **rxdataF_ext,
    int32_t **dl_ch_estimates_ext,
690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706
    uint16_t pmi,
    uint8_t *pmi_ext,
    uint32_t *rb_alloc,
    uint8_t symbol,
    uint8_t subframe,
    LTE_DL_FRAME_PARMS *frame_parms)
    \brief This function extracts the received resource blocks, both channel estimates and data symbols,
    for the current allocation and for single antenna eNB transmission.
    @param rxdataF Raw FFT output of received signal
    @param dl_ch_estimates Channel estimates of current slot
    @param rxdataF_ext FFT output for RBs in this allocation
    @param dl_ch_estimates_ext Channel estimates for RBs in this allocation
    @param pmi subband Precoding matrix indicator
    @param pmi_ext Extracted PMI for chosen RBs
    @param rb_alloc RB allocation vector
    @param symbol Symbol to extract
    @param subframe Subframe number
707
    @param vrb_type Flag to indicate distributed VRB type
708
    @param high_speed_flag
709 710
    @param frame_parms Pointer to frame descriptor
*/
gauthier's avatar
gauthier committed
711
uint16_t dlsch_extract_rbs_single(int32_t **rxdataF,
712 713 714 715 716 717 718 719 720 721
                                  int32_t **dl_ch_estimates,
                                  int32_t **rxdataF_ext,
                                  int32_t **dl_ch_estimates_ext,
                                  uint16_t pmi,
                                  uint8_t *pmi_ext,
                                  uint32_t *rb_alloc,
                                  uint8_t symbol,
                                  uint8_t subframe,
                                  uint32_t high_speed_flag,
                                  LTE_DL_FRAME_PARMS *frame_parms);
722

gauthier's avatar
gauthier committed
723 724 725 726
/** \fn dlsch_extract_rbs_dual(int32_t **rxdataF,
    int32_t **dl_ch_estimates,
    int32_t **rxdataF_ext,
    int32_t **dl_ch_estimates_ext,
727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742
    uint16_t pmi,
    uint8_t *pmi_ext,
    uint32_t *rb_alloc,
    uint8_t symbol,
    LTE_DL_FRAME_PARMS *frame_parms)
    \brief This function extracts the received resource blocks, both channel estimates and data symbols,
    for the current allocation and for dual antenna eNB transmission.
    @param rxdataF Raw FFT output of received signal
    @param dl_ch_estimates Channel estimates of current slot
    @param rxdataF_ext FFT output for RBs in this allocation
    @param dl_ch_estimates_ext Channel estimates for RBs in this allocation
    @param pmi subband Precoding matrix indicator
    @param pmi_ext Extracted PMI for chosen RBs
    @param rb_alloc RB allocation vector
    @param symbol Symbol to extract
    @param subframe Subframe index
743
    @param high_speed_flag
744 745
    @param frame_parms Pointer to frame descriptor
*/
gauthier's avatar
gauthier committed
746
uint16_t dlsch_extract_rbs_dual(int32_t **rxdataF,
747 748 749 750 751 752 753 754 755
                                int32_t **dl_ch_estimates,
                                int32_t **rxdataF_ext,
                                int32_t **dl_ch_estimates_ext,
                                uint16_t pmi,
                                uint8_t *pmi_ext,
                                uint32_t *rb_alloc,
                                uint8_t symbol,
                                uint8_t subframe,
                                uint32_t high_speed_flag,
756 757
                                LTE_DL_FRAME_PARMS *frame_parms,
                                MIMO_mode_t mimo_mode);
758

Xiwen JIANG's avatar
Xiwen JIANG committed
759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779
/** \fn dlsch_extract_rbs_TM7(int32_t **rxdataF,
    int32_t **dl_bf_ch_estimates,
    int32_t **rxdataF_ext,
    int32_t **dl_bf_ch_estimates_ext,
    uint32_t *rb_alloc,
    uint8_t symbol,
    uint8_t subframe,
    uint32_t high_speed_flag,
    LTE_DL_FRAME_PARMS *frame_parms)
    \brief This function extracts the received resource blocks, both channel estimates and data symbols,
    for the current allocation and for single antenna eNB transmission.
    @param rxdataF Raw FFT output of received signal
    @param dl_bf_ch_estimates Beamforming channel estimates of current slot
    @param rxdataF_ext FFT output for RBs in this allocation
    @param dl_bf_ch_estimates_ext Beamforming channel estimates for RBs in this allocation
    @param rb_alloc RB allocation vector
    @param symbol Symbol to extract
    @param subframe Subframe number
    @param high_speed_flag
    @param frame_parms Pointer to frame descriptor
*/
780 781 782 783 784 785 786 787 788 789
uint16_t dlsch_extract_rbs_TM7(int32_t **rxdataF,
                               int32_t **dl_bf_ch_estimates,
                               int32_t **rxdataF_ext,
                               int32_t **dl_bf_ch_estimates_ext,
                               uint32_t *rb_alloc,
                               uint8_t symbol,
                               uint8_t subframe,
                               uint32_t high_speed_flag,
                               LTE_DL_FRAME_PARMS *frame_parms);

790 791 792 793 794
/** \brief This function performs channel compensation (matched filtering) on the received RBs for this allocation.  In addition, it computes the squared-magnitude of the channel with weightings for 16QAM/64QAM detection as well as dual-stream detection (cross-correlation)
    @param rxdataF_ext Frequency-domain received signal in RBs to be demodulated
    @param dl_ch_estimates_ext Frequency-domain channel estimates in RBs to be demodulated
    @param dl_ch_mag First Channel magnitudes (16QAM/64QAM)
    @param dl_ch_magb Second weighted Channel magnitudes (64QAM)
795
    @param rxdataF_comp Compensated received waveform
796 797 798 799 800 801 802 803 804
    @param rho Cross-correlation between two spatial channels on each RX antenna
    @param frame_parms Pointer to frame descriptor
    @param symbol Symbol on which to operate
    @param first_symbol_flag set to 1 on first DLSCH symbol
    @param mod_order Modulation order of allocation
    @param nb_rb Number of RBs in allocation
    @param output_shift Rescaling for compensated output (should be energy-normalizing)
    @param phy_measurements Pointer to UE PHY measurements
*/
gauthier's avatar
gauthier committed
805
void dlsch_channel_compensation(int32_t **rxdataF_ext,
806 807 808 809 810 811 812 813 814 815 816 817
                                int32_t **dl_ch_estimates_ext,
                                int32_t **dl_ch_mag,
                                int32_t **dl_ch_magb,
                                int32_t **rxdataF_comp,
                                int32_t **rho,
                                LTE_DL_FRAME_PARMS *frame_parms,
                                uint8_t symbol,
                                uint8_t first_symbol_flag,
                                uint8_t mod_order,
                                uint16_t nb_rb,
                                uint8_t output_shift,
                                PHY_MEASUREMENTS *phy_measurements);
818 819 820 821 822 823 824 825 826

void dlsch_dual_stream_correlation(LTE_DL_FRAME_PARMS *frame_parms,
                                   unsigned char symbol,
                                   unsigned short nb_rb,
                                   int **dl_ch_estimates_ext,
                                   int **dl_ch_estimates_ext_i,
                                   int **dl_ch_rho_ext,
                                   unsigned char output_shift);

827 828 829 830 831 832 833
void dlsch_dual_stream_correlationTM34(LTE_DL_FRAME_PARMS *frame_parms,
                                   unsigned char symbol,
                                   unsigned short nb_rb,
                                   int **dl_ch_estimates_ext,
                                   int **dl_ch_estimates_ext_i,
                                   int **dl_ch_rho_ext,
                                   unsigned char output_shift0,
834
                                   unsigned char output_shift1);
835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881
//This function is used to compute multiplications in Hhermitian * H matrix
void conjch0_mult_ch1(int *ch0,
                      int *ch1,
                      int32_t *ch0conj_ch1,
                      unsigned short nb_rb,
                      unsigned char output_shift0);

void construct_HhH_elements(int *ch0conj_ch0,
                         int *ch1conj_ch1,
                         int *ch2conj_ch2,
                         int *ch3conj_ch3,
                         int *ch0conj_ch1,
                         int *ch1conj_ch0,
                         int *ch2conj_ch3,
                         int *ch3conj_ch2,
                         int32_t *after_mf_00,
                         int32_t *after_mf_01,
                         int32_t *after_mf_10,
                         int32_t *after_mf_11,
                         unsigned short nb_rb);

void squared_matrix_element(int32_t *Hh_h_00,
                            int32_t *Hh_h_00_sq,
                            unsigned short nb_rb);

void dlsch_channel_level_TM34_meas(int *ch00,
                                   int *ch01,
                                   int *ch10,
                                   int *ch11,
                                   int *avg_0,
                                   int *avg_1,
                                   unsigned short nb_rb);

void det_HhH(int32_t *after_mf_00,
             int32_t *after_mf_01,
             int32_t *after_mf_10,
             int32_t *after_mf_11,
             int32_t *det_fin_128,
             unsigned short nb_rb);

void numer(int32_t *Hh_h_00_sq,
           int32_t *Hh_h_01_sq,
           int32_t *Hh_h_10_sq,
           int32_t *Hh_h_11_sq,
           int32_t *num_fin,
           unsigned short nb_rb);

882 883 884 885 886
uint8_t rank_estimation_tm3_tm4(int *dl_ch_estimates_00,
                                int *dl_ch_estimates_01,
                                int *dl_ch_estimates_10,
                                int *dl_ch_estimates_11,
                                unsigned short nb_rb);
887

888
void dlsch_channel_compensation_TM56(int **rxdataF_ext,
889 890 891 892 893 894 895 896 897 898 899 900 901
                                     int **dl_ch_estimates_ext,
                                     int **dl_ch_mag,
                                     int **dl_ch_magb,
                                     int **rxdataF_comp,
                                     unsigned char *pmi_ext,
                                     LTE_DL_FRAME_PARMS *frame_parms,
                                     PHY_MEASUREMENTS *phy_measurements,
                                     int eNB_id,
                                     unsigned char symbol,
                                     unsigned char mod_order,
                                     unsigned short nb_rb,
                                     unsigned char output_shift,
                                     unsigned char dl_power_off);
902 903


904
void dlsch_channel_compensation_TM34(LTE_DL_FRAME_PARMS *frame_parms,
905 906 907 908 909 910
                                    LTE_UE_PDSCH *lte_ue_pdsch_vars,
                                    PHY_MEASUREMENTS *phy_measurements,
                                    int eNB_id,
                                    unsigned char symbol,
                                    unsigned char mod_order0,
                                    unsigned char mod_order1,
911
                                    int harq_pid,
912
                                    int round,
913
                                    MIMO_mode_t mimo_mode,
914
                                    unsigned short nb_rb,
915 916
                                    unsigned char output_shift0,
                                    unsigned char output_shift1);
917 918


919 920 921 922 923 924 925
/** \brief This function computes the average channel level over all allocated RBs and antennas (TX/RX) in order to compute output shift for compensated signal
    @param dl_ch_estimates_ext Channel estimates in allocated RBs
    @param frame_parms Pointer to frame descriptor
    @param avg Pointer to average signal strength
    @param pilots_flag Flag to indicate pilots in symbol
    @param nb_rb Number of allocated RBs
*/
gauthier's avatar
gauthier committed
926
void dlsch_channel_level(int32_t **dl_ch_estimates_ext,
927 928 929 930
                         LTE_DL_FRAME_PARMS *frame_parms,
                         int32_t *avg,
                         uint8_t pilots_flag,
                         uint16_t nb_rb);
931 932


933
void dlsch_channel_level_TM34(int **dl_ch_estimates_ext,
934 935 936 937 938 939 940
                              LTE_DL_FRAME_PARMS *frame_parms,
                              unsigned char *pmi_ext,
                              int *avg_0,
                              int *avg_1,
                              uint8_t symbol,
                              unsigned short nb_rb,
                              MIMO_mode_t mimo_mode);
941 942 943


void dlsch_channel_level_TM56(int32_t **dl_ch_estimates_ext,
944 945
                              LTE_DL_FRAME_PARMS *frame_parms,
                              unsigned char *pmi_ext,
gauthier's avatar
gauthier committed
946
                              int32_t *avg,
947 948 949
                              uint8_t symbol_mod,
                              uint16_t nb_rb);

Xiwen JIANG's avatar
Xiwen JIANG committed
950 951 952 953 954 955
void dlsch_channel_level_TM7(int32_t **dl_bf_ch_estimates_ext,
                         LTE_DL_FRAME_PARMS *frame_parms,
                         int32_t *avg,
                         uint8_t pilots_flag,
                         uint16_t nb_rb);

gauthier's avatar
gauthier committed
956
void dlsch_scale_channel(int32_t **dl_ch_estimates_ext,
957 958 959 960 961 962
                         LTE_DL_FRAME_PARMS *frame_parms,
                         LTE_UE_DLSCH_t **dlsch_ue,
                         uint8_t symbol_mod,
                         uint16_t nb_rb);

/** \brief This is the top-level entry point for DLSCH decoding in UE.  It should be replicated on several
963
    threads (on multi-core machines) corresponding to different HARQ processes. The routine first
964 965 966 967 968 969 970 971 972
    computes the segmentation information, followed by rate dematching and sub-block deinterleaving the of the
    received LLRs computed by dlsch_demodulation for each transport block segment. It then calls the
    turbo-decoding algorithm for each segment and stops after either after unsuccesful decoding of at least
    one segment or correct decoding of all segments.  Only the segment CRCs are check for the moment, the
    overall CRC is ignored.  Finally transport block reassembly is performed.
    @param phy_vars_ue Pointer to ue variables
    @param dlsch_llr Pointer to LLR values computed by dlsch_demodulation
    @param lte_frame_parms Pointer to frame descriptor
    @param dlsch Pointer to DLSCH descriptor
973
    @param frame Frame number
974 975 976 977 978 979 980
    @param subframe Subframe number
    @param num_pdcch_symbols Number of PDCCH symbols
    @param is_crnti indicates if PDSCH belongs to a CRNTI (necessary for parallelizing decoding threads)
    @param llr8_flag If 1, indicate that the 8-bit turbo decoder should be used
    @returns 0 on success, 1 on unsuccessful decoding
*/
uint32_t dlsch_decoding(PHY_VARS_UE *phy_vars_ue,
981 982 983 984
                        int16_t *dlsch_llr,
                        LTE_DL_FRAME_PARMS *lte_frame_parms,
                        LTE_UE_DLSCH_t *dlsch,
                        LTE_DL_UE_HARQ_t *harq_process,
985
                        uint32_t frame,
986 987 988 989
                        uint8_t subframe,
                        uint8_t harq_pid,
                        uint8_t is_crnti,
                        uint8_t llr8_flag);
990

991

992
uint32_t dlsch_decoding_emul(PHY_VARS_UE *phy_vars_ue,
993
                             uint8_t subframe,
994
                             PDSCH_t dlsch_id,
995
                             uint8_t eNB_id);
996 997 998 999 1000 1001 1002

/** \brief This function is the top-level entry point to PDSCH demodulation, after frequency-domain transformation and channel estimation.  It performs
    - RB extraction (signal and channel estimates)
    - channel compensation (matched filtering)
    - RE extraction (pilot, PBCH, synch. signals)
    - antenna combining (MRC, Alamouti, cycling)
    - LLR computation
1003
    This function supports TM1, 2, 3, 5, and 6.
1004 1005 1006 1007 1008 1009 1010
    @param phy_vars_ue Pointer to PHY variables
    @param type Type of PDSCH (SI_PDSCH,RA_PDSCH,PDSCH,PMCH)
    @param eNB_id eNb index (Nid1) 0,1,2
    @param eNB_id_i Interfering eNB index (Nid1) 0,1,2, or 3 in case of MU-MIMO IC receiver
    @param subframe Subframe number
    @param symbol Symbol on which to act (within sub-frame)
    @param first_symbol_flag set to 1 on first DLSCH symbol
1011
    @param rx_type. rx_type=RX_IC_single_stream will enable interference cancellation of a second stream when decoding the first stream. In case of TM1, 2, 5, and this can cancel interference from a neighbouring cell given by eNB_id_i. In case of TM5, eNB_id_i should be set to n_connected_eNB to perform multi-user interference cancellation. In case of TM3, eNB_id_i should be set to eNB_id to perform co-channel interference cancellation; this option should be used together with an interference cancellation step [...]. In case of TM3, if rx_type=RX_IC_dual_stream, both streams will be decoded by applying the IC single stream receiver twice.
1012 1013
    @param i_mod Modulation order of the interfering stream
*/
gauthier's avatar
gauthier committed
1014
int32_t rx_pdsch(PHY_VARS_UE *phy_vars_ue,
1015 1016 1017
                 PDSCH_t type,
                 uint8_t eNB_id,
                 uint8_t eNB_id_i,
Bilel's avatar
Bilel committed
1018
                 uint32_t frame,
1019 1020 1021
                 uint8_t subframe,
                 uint8_t symbol,
                 uint8_t first_symbol_flag,
1022
                 RX_type_t rx_type,
1023 1024
                 uint8_t i_mod,
                 uint8_t harq_pid);
1025

Bilel's avatar
Bilel committed
1026
int32_t rx_pdcch(PHY_VARS_UE *ue,
Bilel's avatar
Bilel committed
1027
                 uint32_t frame,
1028 1029 1030
                 uint8_t subframe,
                 uint8_t eNB_id,
                 MIMO_mode_t mimo_mode,
knopp's avatar
knopp committed
1031
                 uint32_t high_speed_flag);
1032 1033 1034 1035 1036 1037 1038 1039 1040

/*! \brief Extract PSS and SSS resource elements
  @param phy_vars_ue Pointer to UE variables
  @param[out] pss_ext contain the PSS signals after the extraction
  @param[out] sss_ext contain the SSS signals after the extraction
  @returns 0 on success
*/
int pss_sss_extract(PHY_VARS_UE *phy_vars_ue,
                    int32_t pss_ext[4][72],
1041
                    int32_t sss_ext[4][72],
1042
                                        uint8_t subframe);
1043 1044 1045 1046 1047 1048 1049

/*! \brief Extract only PSS resource elements
  @param phy_vars_ue Pointer to UE variables
  @param[out] pss_ext contain the PSS signals after the extraction
  @returns 0 on success
*/
int pss_only_extract(PHY_VARS_UE *phy_vars_ue,
Bilel's avatar
Bilel committed
1050 1051
                    int32_t pss_ext[4][72],
                    uint8_t subframe);
1052 1053 1054 1055 1056 1057 1058

/*! \brief Extract only SSS resource elements
  @param phy_vars_ue Pointer to UE variables
  @param[out] sss_ext contain the SSS signals after the extraction
  @returns 0 on success
*/
int sss_only_extract(PHY_VARS_UE *phy_vars_ue,
Bilel's avatar
Bilel committed
1059 1060
                    int32_t sss_ext[4][72],
                    uint8_t subframe);
1061

1062 1063 1064 1065 1066 1067 1068 1069
/*! \brief Performs detection of SSS to find cell ID and other framing parameters (FDD/TDD, normal/extended prefix)
  @param phy_vars_ue Pointer to UE variables
  @param tot_metric Pointer to variable containing maximum metric under framing hypothesis (to be compared to other hypotheses
  @param flip_max Pointer to variable indicating if start of frame is in second have of RX buffer (i.e. PSS/SSS is flipped)
  @param phase_max Pointer to variable (0 ... 6) containing rought phase offset between PSS and SSS (can be used for carrier
  frequency adjustment. 0 means -pi/3, 6 means pi/3.
  @returns 0 on success
*/
gauthier's avatar
gauthier committed
1070
int rx_sss(PHY_VARS_UE *phy_vars_ue,int32_t *tot_metric,uint8_t *flip_max,uint8_t *phase_max);
1071 1072 1073 1074 1075

/*! \brief receiver for the PBCH
  \returns number of tx antennas or -1 if error
*/
uint16_t rx_pbch(LTE_UE_COMMON *lte_ue_common_vars,
1076 1077 1078 1079 1080 1081
                 LTE_UE_PBCH *lte_ue_pbch_vars,
                 LTE_DL_FRAME_PARMS *frame_parms,
                 uint8_t eNB_id,
                 MIMO_mode_t mimo_mode,
                 uint32_t high_speed_flag,
                 uint8_t frame_mod4);
1082 1083

uint16_t rx_pbch_emul(PHY_VARS_UE *phy_vars_ue,
1084 1085
                      uint8_t eNB_id,
                      uint8_t pbch_phase);
1086 1087 1088 1089 1090 1091 1092


/*! \brief PBCH unscrambling
  This is similar to pbch_scrabling with the difference that inputs are signed s16s (llr values) and instead of flipping bits we change signs.
  \param frame_parms Pointer to frame descriptor
  \param llr Output of the demodulator
  \param length Length of the sequence
1093
  \param frame_mod4 Frame number modulo 4*/
1094
void pbch_unscrambling(LTE_DL_FRAME_PARMS *frame_parms,
1095 1096 1097
                       int8_t* llr,
                       uint32_t length,
                       uint8_t frame_mod4);
1098

1099 1100 1101 1102 1103
/*! \brief Top-level generation route for Sidelink BCH,PSS and SSS
  \param ue pointer to UE descriptor
  \param slss pointer to SLSS configuration and payload
  \param frame_tx Frame number
  \param subframe_tx subframe number
1104
*/
1105
void generate_slss(PHY_VARS_UE *ue,SLSS_t *slss,int frame_tx,int subframe_tx);
1106

1107 1108 1109 1110 1111 1112 1113
/*! \brief Top-level generation route for Sidelink Discovery Channel
  \param ue pointer to UE descriptor
  \param sldch pointer to SLDCH configuration and payload
  \param frame_tx Frame number
  \param subframe_tx subframe number
*/
void generate_sldch(PHY_VARS_UE *ue,SLDCH_t *sldch,int frame_tx,int subframe_tx);
1114

1115 1116 1117 1118 1119 1120 1121
/*! \brief Top-level generation route for Sidelink Shared Channel
  \param ue pointer to UE descriptor
  \param slsch pointer to SLSCH configuration and payload
  \param frame_tx Frame number
  \param subframe_tx subframe number
*/
void generate_slsch(PHY_VARS_UE *ue,SLSCH_t *slss,int frame_tx,int subframe_tx);
1122 1123 1124

void generate_64qam_table(void);
void generate_16qam_table(void);
1125
void generate_qpsk_table(void);
1126 1127 1128 1129 1130 1131 1132 1133

uint16_t extract_crc(uint8_t *dci,uint8_t DCI_LENGTH);

/*! \brief LLR from two streams. This function takes two streams (qpsk modulated) and calculates the LLR, considering one stream as interference.
  \param stream0_in pointer to first stream0
  \param stream1_in pointer to first stream1
  \param stream0_out pointer to output stream
  \param rho01 pointer to correlation matrix
1134
  \param length*/
1135
void qpsk_qpsk_TM3456(short *stream0_in,
1136 1137 1138 1139 1140
                      short *stream1_in,
                      short *stream0_out,
                      short *rho01,
                      int length
                     );
1141 1142 1143 1144 1145 1146 1147 1148

/** \brief Attempt decoding of a particular DCI with given length and format.
    @param DCI_LENGTH length of DCI in bits
    @param DCI_FMT Format of DCI
    @param e e-sequence (soft bits)
    @param decoded_output Output of Viterbi decoder
*/
void dci_decoding(uint8_t DCI_LENGTH,
1149 1150 1151
                  uint8_t DCI_FMT,
                  int8_t *e,
                  uint8_t *decoded_output);
1152 1153 1154 1155 1156

/** \brief Do 36.213 DCI decoding procedure by searching different RNTI options and aggregation levels.  Currently does
    not employ the complexity reducing procedure based on RNTI.
    @param phy_vars_ue UE variables
    @param dci_alloc Pointer to DCI_ALLOC_t array to store results for DLSCH/ULSCH programming
1157
    @param do_common If 1 perform search in common search-space else ue-specific search-space
1158 1159 1160 1161 1162
    @param eNB_id eNB Index on which to act
    @param subframe Index of subframe
    @returns bitmap of occupied CCE positions (i.e. those detected)
*/
uint16_t dci_decoding_procedure(PHY_VARS_UE *phy_vars_ue,
1163 1164 1165 1166
                                DCI_ALLOC_t *dci_alloc,
                                int do_common,
                                int16_t eNB_id,
                                uint8_t subframe);
1167

1168 1169 1170 1171 1172 1173
uint16_t dci_CRNTI_decoding_procedure(PHY_VARS_UE *ue,
                                DCI_ALLOC_t *dci_alloc,
                                uint8_t DCIFormat,
                                uint8_t agregationLevel,
                                int16_t eNB_id,
                                uint8_t subframe);
1174 1175

uint16_t dci_decoding_procedure_emul(LTE_UE_PDCCH **lte_ue_pdcch_vars,
1176 1177 1178 1179 1180
                                     uint8_t num_ue_spec_dci,
                                     uint8_t num_common_dci,
                                     DCI_ALLOC_t *dci_alloc_tx,
                                     DCI_ALLOC_t *dci_alloc_rx,
                                     int16_t eNB_id);
1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201

/** \brief Compute Q (modulation order) based on I_MCS PDSCH.  Implements table 7.1.7.1-1 from 36.213.
    @param I_MCS */
uint8_t get_Qm(uint8_t I_MCS);

/** \brief Compute Q (modulation order) based on I_MCS for PUSCH.  Implements table 8.6.1-1 from 36.213.
    @param I_MCS */
uint8_t get_Qm_ul(uint8_t I_MCS);

/** \brief Compute I_TBS (transport-block size) based on I_MCS for PDSCH.  Implements table 7.1.7.1-1 from 36.213.
    @param I_MCS */
uint8_t get_I_TBS(uint8_t I_MCS);

/** \brief Compute I_TBS (transport-block size) based on I_MCS for PUSCH.  Implements table 8.6.1-1 from 36.213.
    @param I_MCS */
unsigned char get_I_TBS_UL(unsigned char I_MCS);

/** \brief Compute Q (modulation order) based on downlink I_MCS. Implements table 7.1.7.1-1 from 36.213.
    @param I_MCS
    @param nb_rb
    @return Transport block size */
1202
uint32_t get_TBS_DL(uint8_t mcs, uint16_t nb_rb);
1203 1204 1205 1206 1207

/** \brief Compute Q (modulation order) based on uplink I_MCS. Implements table 7.1.7.1-1 from 36.213.
    @param I_MCS
    @param nb_rb
    @return Transport block size */
1208
uint32_t get_TBS_UL(uint8_t mcs, uint16_t nb_rb);
1209 1210

/* \brief Return bit-map of resource allocation for a given DCI rballoc (RIV format) and vrb type
1211 1212 1213 1214 1215 1216 1217
   @param N_RB_DL number of PRB on DL
   @param indicator for even/odd slot
   @param vrb vrb index
   @param Ngap Gap indicator
*/
uint32_t get_prb(int N_RB_DL,int odd_slot,int vrb,int Ngap);

1218
/* \brief Return prb for a given vrb index
1219 1220 1221
   @param vrb_type VRB type (0=localized,1=distributed)
   @param rb_alloc_dci rballoc field from DCI
*/
1222
uint32_t get_rballoc(vrb_t vrb_type,uint16_t rb_alloc_dci);
1223

1224

1225 1226 1227
/* \brief Return bit-map of resource allocation for a given DCI rballoc (RIV format) and vrb type
   @returns Transmission mode (1-7)
*/
1228
uint8_t get_transmission_mode(module_id_t Mod_id, uint8_t CC_id, rnti_t rnti);
1229

1230

1231
/* \brief
1232
   @param ra_header Header of resource allocation (0,1) (See sections 7.1.6.1/7.1.6.2 of 36.213 Rel8.6)
1233
   @param rb_alloc Bitmap allocation from DCI (format 1,2)
1234 1235 1236 1237
   @returns number of physical resource blocks
*/
uint32_t conv_nprb(uint8_t ra_header,uint32_t rb_alloc,int N_RB_DL);

1238
int get_G(LTE_DL_FRAME_PARMS *frame_parms,uint16_t nb_rb,uint32_t *rb_alloc,uint8_t mod_order,uint8_t Nl,uint8_t num_pdcch_symbols,int frame,uint8_t subframe, uint8_t beamforming_mode);
1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264

int adjust_G(LTE_DL_FRAME_PARMS *frame_parms,uint32_t *rb_alloc,uint8_t mod_order,uint8_t subframe);
int adjust_G2(LTE_DL_FRAME_PARMS *frame_parms,uint32_t *rb_alloc,uint8_t mod_order,uint8_t subframe,uint8_t symbol);


#ifndef modOrder
#define modOrder(I_MCS,I_TBS) ((I_MCS-I_TBS)*2+2) // Find modulation order from I_TBS and I_MCS
#endif

/** \fn uint8_t I_TBS2I_MCS(uint8_t I_TBS);
    \brief This function maps I_tbs to I_mcs according to Table 7.1.7.1-1 in 3GPP TS 36.213 V8.6.0. Where there is two supported modulation orders for the same I_TBS then either high or low modulation is chosen by changing the equality of the two first comparisons in the if-else statement.
    \param I_TBS Index of Transport Block Size
    \return I_MCS given I_TBS
*/
uint8_t I_TBS2I_MCS(uint8_t I_TBS);

/** \fn uint8_t SE2I_TBS(float SE,
    uint8_t N_PRB,
    uint8_t symbPerRB);
    \brief This function maps a requested throughput in number of bits to I_tbs. The throughput is calculated as a function of modulation order, RB allocation and number of symbols per RB. The mapping orginates in the "Transport block size table" (Table 7.1.7.2.1-1 in 3GPP TS 36.213 V8.6.0)
    \param SE Spectral Efficiency (before casting to integer, multiply by 1024, remember to divide result by 1024!)
    \param N_PRB Number of PhysicalResourceBlocks allocated \sa lte_frame_parms->N_RB_DL
    \param symbPerRB Number of symbols per resource block allocated to this channel
    \return I_TBS given an SE and an N_PRB
*/
uint8_t SE2I_TBS(float SE,
1265 1266
                 uint8_t N_PRB,
                 uint8_t symbPerRB);
1267 1268 1269 1270 1271
/** \brief This function generates the sounding reference symbol (SRS) for the uplink according to 36.211 v8.6.0. If IFFT_FPGA is defined, the SRS is quantized to a QPSK sequence.
    @param frame_parms LTE DL Frame Parameters
    @param soundingrs_ul_config_dedicated Dynamic configuration from RRC during Connection Establishment
    @param txdataF pointer to the frequency domain TX signal
    @returns 0 on success*/
1272 1273 1274 1275 1276
int generate_srs(LTE_DL_FRAME_PARMS *frame_parms,
		 SOUNDINGRS_UL_CONFIG_DEDICATED *soundingrs_ul_config_dedicated,
		 int *txdataF,
		 int16_t amp,
		 uint32_t subframe);
1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287


/*!
  \brief This function is similar to generate_srs_tx but generates a conjugate sequence for channel estimation. If IFFT_FPGA is defined, the SRS is quantized to a QPSK sequence.
  @param phy_vars_ue Pointer to PHY_VARS structure
  @param eNB_id Index of destination eNB for this SRS
  @param amp Linear amplitude of SRS
  @param subframe Index of subframe on which to act
  @returns 0 on success, -1 on error with message
*/

gauthier's avatar
gauthier committed
1288
int32_t generate_srs_tx(PHY_VARS_UE *phy_vars_ue,
1289 1290 1291
                        uint8_t eNB_id,
                        int16_t amp,
                        uint32_t subframe);
1292 1293 1294 1295 1296

/*!
  \brief This function generates the downlink reference signal for the PUSCH according to 36.211 v8.6.0. The DRS occuies the RS defined by rb_alloc and the symbols 2 and 8 for extended CP and 3 and 10 for normal CP.
*/

gauthier's avatar
gauthier committed
1297
int32_t generate_drs_pusch(PHY_VARS_UE *phy_vars_ue,
1298
                           UE_rxtx_proc_t *proc,
1299 1300 1301 1302 1303 1304
                           uint8_t eNB_id,
                           int16_t amp,
                           uint32_t subframe,
                           uint32_t first_rb,
                           uint32_t nb_rb,
                           uint8_t ant);
1305 1306 1307 1308 1309 1310

/*!
  \brief This function initializes the Group Hopping, Sequence Hopping and nPRS sequences for PUCCH/PUSCH according to 36.211 v8.6.0. It should be called after configuration of UE (reception of SIB2/3) and initial configuration of eNB (or after reconfiguration of cell-specific parameters).
  @param frame_parms Pointer to a LTE_DL_FRAME_PARMS structure (eNB or UE)*/
void init_ul_hopping(LTE_DL_FRAME_PARMS *frame_parms);

1311 1312 1313 1314 1315 1316 1317 1318

/*!
  \brief This function implements the initialization of paging parameters for UE (See Section 7, 36.304).It must be called after setting IMSImod1024 during UE startup and after receiving SIB2
  @param ue Pointer to UE context
  @param defaultPagingCycle T from 36.304 (0=32,1=64,2=128,3=256)
  @param nB nB from 36.304 (0=4T,1=2T,2=T,3=T/2,4=T/4,5=T/8,6=T/16,7=T/32*/
int init_ue_paging_info(PHY_VARS_UE *ue, long defaultPagingCycle, long nB);

gauthier's avatar
gauthier committed
1319
int32_t compareints (const void * a, const void * b);
1320 1321


1322
void ulsch_modulation(int32_t **txdataF,
1323 1324 1325 1326 1327
                      int16_t amp,
                      frame_t frame,
                      uint32_t subframe,
                      LTE_DL_FRAME_PARMS *frame_parms,
                      LTE_UE_ULSCH_t *ulsch);
1328 1329 1330



1331 1332


1333

1334
int generate_ue_dlsch_params_from_dci(int frame,
1335
                                      uint8_t subframe,
1336
                                      void *dci_pdu,
gauthier's avatar
gauthier committed
1337
                                      rnti_t rnti,
1338
                                      DCI_format_t dci_format,
1339 1340
                                      LTE_UE_PDCCH *pdcch_vars,
                                      LTE_UE_PDSCH *pdsch_vars,
1341 1342 1343 1344 1345
                                      LTE_UE_DLSCH_t **dlsch,
                                      LTE_DL_FRAME_PARMS *frame_parms,
                                      PDSCH_CONFIG_DEDICATED *pdsch_config_dedicated,
                                      uint16_t si_rnti,
                                      uint16_t ra_rnti,
1346
                                      uint16_t p_rnti,
1347 1348
                                      uint8_t beamforming_mode,
                                      uint16_t tc_rnti);
1349 1350 1351


int generate_ue_ulsch_params_from_dci(void *dci_pdu,
gauthier's avatar
gauthier committed
1352
                                      rnti_t rnti,
1353 1354 1355
                                      uint8_t subframe,
                                      DCI_format_t dci_format,
                                      PHY_VARS_UE *phy_vars_ue,
1356
                                      UE_rxtx_proc_t *proc,
1357
                                      uint16_t si_rnti,
1358 1359 1360 1361 1362
                                      uint16_t ra_rnti,
                                      uint16_t p_rnti,
                                      uint16_t cba_rnti,
                                      uint8_t eNB_id,
                                      uint8_t use_srs);
1363

gauthier's avatar
gauthier committed
1364
int32_t generate_ue_ulsch_params_from_rar(PHY_VARS_UE *phy_vars_ue,
1365 1366
                                          UE_rxtx_proc_t *proc,
                                          uint8_t eNB_id);
1367
double sinr_eff_cqi_calc(PHY_VARS_UE *phy_vars_ue,
1368
                         uint8_t eNB_id,
1369
                                                 uint8_t subframe);
knopp's avatar
knopp committed
1370 1371 1372

uint8_t sinr2cqi(double sinr,uint8_t trans_mode);

1373 1374 1375

int dump_dci(LTE_DL_FRAME_PARMS *frame_parms, DCI_ALLOC_t *dci);

1376
int dump_ue_stats(PHY_VARS_UE *phy_vars_ue, UE_rxtx_proc_t *proc, char* buffer, int length, runmode_t mode, int input_level_dBm);
1377 1378 1379 1380 1381 1382 1383



void generate_pcfich_reg_mapping(LTE_DL_FRAME_PARMS *frame_parms);


void pcfich_unscrambling(LTE_DL_FRAME_PARMS *frame_parms,
1384 1385
                         uint8_t subframe,
                         int16_t *d);
1386 1387 1388


uint8_t rx_pcfich(LTE_DL_FRAME_PARMS *frame_parms,
1389 1390 1391
                  uint8_t subframe,
                  LTE_UE_PDCCH *lte_ue_pdcch_vars,
                  MIMO_mode_t mimo_mode);
1392 1393 1394 1395 1396 1397 1398 1399 1400

void generate_phich_reg_mapping(LTE_DL_FRAME_PARMS *frame_parms);


void init_transport_channels(uint8_t);

void generate_RIV_tables(void);

/*!
1401 1402
  \brief This function performs the initial cell search procedure - PSS detection, SSS detection and PBCH detection.  At the
  end, the basic frame parameters are known (Frame configuration - TDD/FDD and cyclic prefix length,
1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420
  N_RB_DL, PHICH_CONFIG and Nid_cell) and the UE can begin decoding PDCCH and DLSCH SI to retrieve the rest.  Once these
  parameters are know, the routine calls some basic initialization routines (cell-specific reference signals, etc.)
  @param phy_vars_ue Pointer to UE variables
*/
int initial_sync(PHY_VARS_UE *phy_vars_ue, runmode_t mode);


/*!
  \brief Encoding of PUSCH/ACK/RI/ACK from 36-212.
  @param a Pointer to ulsch SDU
  @param frame_parms Pointer to Frame parameters
  @param ulsch Pointer to ulsch descriptor
  @param harq_pid HARQ process ID
  @param tmode Transmission mode (1-7)
  @param control_only_flag Generate PUSCH with control information only
  @param Nbundled Parameter for ACK/NAK bundling (36.213 Section 7.3)
*/
uint32_t ulsch_encoding(uint8_t *a,
1421 1422 1423
                        PHY_VARS_UE *phy_vars_ue,
                        uint8_t harq_pid,
                        uint8_t eNB_id,
Bilel's avatar
Bilel committed
1424
                        uint8_t subframe_rx,
1425 1426 1427
                        uint8_t tmode,
                        uint8_t control_only_flag,
                        uint8_t Nbundled);
1428

1429

1430 1431 1432 1433


/* \brief  This routine demodulates the PHICH and updates PUSCH/ULSCH parameters.
   @param phy_vars_ue Pointer to UE variables
1434
   @param proc Pointer to RXN_TXNp4 proc
1435 1436 1437 1438 1439
   @param subframe Subframe of received PDCCH/PHICH
   @param eNB_id Index of eNB
*/

void rx_phich(PHY_VARS_UE *phy_vars_ue,
1440
              UE_rxtx_proc_t *proc,
1441 1442
              uint8_t subframe,
              uint8_t eNB_id);
1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457


/** \brief  This routine provides the relationship between a PHICH TXOp and its corresponding PUSCH subframe (Table 8.3.-1 from 36.213).
    @param frame_parms Pointer to DL frame configuration parameters
    @param subframe Subframe of received/transmitted PHICH
    @returns subframe of PUSCH transmission
*/
uint8_t phich_subframe2_pusch_subframe(LTE_DL_FRAME_PARMS *frame_parms,uint8_t subframe);

/** \brief  This routine provides the relationship between a PHICH TXOp and its corresponding PUSCH frame (Table 8.3.-1 from 36.213).
    @param frame_parms Pointer to DL frame configuration parameters
    @param frame Frame of received/transmitted PHICH
    @param subframe Subframe of received/transmitted PHICH
    @returns frame of PUSCH transmission
*/
1458
int phich_frame2_pusch_frame(LTE_DL_FRAME_PARMS *frame_parms, int frame, int subframe);
1459

knopp's avatar
 
knopp committed
1460
void print_CQI(void *o,UCI_format_t uci_format,uint8_t eNB_id,int N_RB_DL);
1461

1462
void fill_CQI(LTE_UE_ULSCH_t *ulsch,PHY_MEASUREMENTS *meas,uint8_t eNB_id, uint8_t harq_pid,int N_RB_DL, rnti_t rnti, uint8_t trans_