ue_procedures.c 105 KB
Newer Older
1
/*
2 3 4 5 6 7 8
 * Licensed to the OpenAirInterface (OAI) Software Alliance under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information regarding
 * copyright ownership.  The OpenAirInterface Software Alliance
 * licenses this file to You under the OAI Public License, Version 1.1
 * (the "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
9 10 11 12 13 14 15 16 17 18 19 20
 *
 *      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
 */
21 22

/*! \file ue_procedures.c
gauthier's avatar
gauthier committed
23
 * \brief procedures related to UE
24 25 26
 * \author  Navid Nikaein and Raymond Knopp
 * \date 2010 - 2014
 * \version 1
gauthier's avatar
gauthier committed
27 28
 * \email: navid.nikaein@eurecom.fr
 * @ingroup _mac
29

gauthier's avatar
gauthier committed
30
 */
31

32 33 34 35
#ifdef EXMIMO
#include <pthread.h>
#endif

36 37
#include "extern.h"
#include "defs.h"
38
#include "proto.h"
39
#ifdef PHY_EMUL
40
#include "SIMULATION/PHY_EMULATION/impl_defs.h"
41
#else
42 43
#include "SCHED/defs.h"
#include "PHY/impl_defs_top.h"
44 45 46
#endif
#include "PHY_INTERFACE/extern.h"
#include "COMMON/mac_rrc_primitives.h"
Cedric Roux's avatar
Cedric Roux committed
47 48

#include "RRC/L2_INTERFACE/openair_rrc_L2_interface.h"
49 50 51
#include "RRC/LITE/extern.h"
#include "UTIL/LOG/log.h"
#include "UTIL/LOG/vcd_signal_dumper.h"
Cedric Roux's avatar
Cedric Roux committed
52
#include "UTIL/OPT/opt.h"
53 54
#include "OCG.h"
#include "OCG_extern.h"
55
#include "openair2/PHY_INTERFACE/phy_stub_UE.h"
Cedric Roux's avatar
Cedric Roux committed
56

57
#ifdef PHY_EMUL
58
#include "SIMULATION/simulation_defs.h"
59
#endif
60
#include "pdcp.h"
61

62
#if defined(ENABLE_ITTI)
63
#include "intertask_interface.h"
64 65
#endif

66 67
#include "assertions.h"

68
#include "SIMULATION/TOOLS/defs.h"	// for taus
69

70
#define DEBUG_HEADER_PARSING 1
71
#define ENABLE_MAC_PAYLOAD_DEBUG 1
72

fnabet's avatar
fnabet committed
73 74
extern uint8_t usim_test;

75 76
extern UL_IND_t *UL_INFO;

77 78
extern uint8_t  nfapi_mode;

79
/*
80
 *
81 82 83
#ifndef USER_MODE
#define msg debug_msg
#endif
gauthier's avatar
gauthier committed
84
 */
85

86
mapping BSR_names[] = {
87 88 89 90 91 92
    {"NONE", 0},
    {"SHORT BSR", 1},
    {"TRUNCATED BSR", 2},
    {"LONG BSR", 3},
    {"PADDING BSR", 4},
    {NULL, -1}
93 94 95
};


96 97
void ue_init_mac(module_id_t module_idP)
{
98

99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159
    int i;
    // default values as deined in 36.331 sec 9.2.2
    LOG_I(MAC, "[UE%d] Applying default macMainConfig\n", module_idP);
    //UE_mac_inst[module_idP].scheduling_info.macConfig=NULL;
    UE_mac_inst[module_idP].scheduling_info.retxBSR_Timer =
	RetxBSR_Timer_r12_sf10240;
    UE_mac_inst[module_idP].scheduling_info.periodicBSR_Timer =
	PeriodicBSR_Timer_r12_infinity;
    UE_mac_inst[module_idP].scheduling_info.periodicPHR_Timer =
	MAC_MainConfig__phr_Config__setup__periodicPHR_Timer_sf20;
    UE_mac_inst[module_idP].scheduling_info.prohibitPHR_Timer =
	MAC_MainConfig__phr_Config__setup__prohibitPHR_Timer_sf20;
    UE_mac_inst[module_idP].scheduling_info.PathlossChange_db =
	MAC_MainConfig__phr_Config__setup__dl_PathlossChange_dB1;
    UE_mac_inst[module_idP].PHR_state =
	MAC_MainConfig__phr_Config_PR_setup;
    UE_mac_inst[module_idP].scheduling_info.SR_COUNTER = 0;
    UE_mac_inst[module_idP].scheduling_info.sr_ProhibitTimer = 0;
    UE_mac_inst[module_idP].scheduling_info.sr_ProhibitTimer_Running = 0;
    UE_mac_inst[module_idP].scheduling_info.maxHARQ_Tx =
	MAC_MainConfig__ul_SCH_Config__maxHARQ_Tx_n5;
    UE_mac_inst[module_idP].scheduling_info.ttiBundling = 0;
    UE_mac_inst[module_idP].scheduling_info.extendedBSR_Sizes_r10 = 0;
    UE_mac_inst[module_idP].scheduling_info.extendedPHR_r10 = 0;
    UE_mac_inst[module_idP].scheduling_info.drx_config = NULL;
    UE_mac_inst[module_idP].scheduling_info.phr_config = NULL;
    // set init value 0xFFFF, make sure periodic timer and retx time counters are NOT active, after bsr transmission set the value configured by the NW.
    UE_mac_inst[module_idP].scheduling_info.periodicBSR_SF =
	MAC_UE_BSR_TIMER_NOT_RUNNING;
    UE_mac_inst[module_idP].scheduling_info.retxBSR_SF =
	MAC_UE_BSR_TIMER_NOT_RUNNING;
    UE_mac_inst[module_idP].BSR_reporting_active = BSR_TRIGGER_NONE;

    UE_mac_inst[module_idP].scheduling_info.periodicPHR_SF =
	get_sf_perioidicPHR_Timer(UE_mac_inst[module_idP].
				  scheduling_info.periodicPHR_Timer);
    UE_mac_inst[module_idP].scheduling_info.prohibitPHR_SF =
	get_sf_prohibitPHR_Timer(UE_mac_inst[module_idP].
				 scheduling_info.prohibitPHR_Timer);
    UE_mac_inst[module_idP].scheduling_info.PathlossChange_db =
	get_db_dl_PathlossChange(UE_mac_inst[module_idP].
				 scheduling_info.PathlossChange);
    UE_mac_inst[module_idP].PHR_reporting_active = 0;

    for (i = 0; i < MAX_NUM_LCID; i++) {
	LOG_D(MAC,
	      "[UE%d] Applying default logical channel config for LCGID %d\n",
	      module_idP, i);
	UE_mac_inst[module_idP].scheduling_info.Bj[i] = -1;
	UE_mac_inst[module_idP].scheduling_info.bucket_size[i] = -1;

	if (i < DTCH) {		// initilize all control channels lcgid to 0
	    UE_mac_inst[module_idP].scheduling_info.LCGID[i] = 0;
	} else {		// initialize all the data channels lcgid to 1
	    UE_mac_inst[module_idP].scheduling_info.LCGID[i] = 1;
	}

	UE_mac_inst[module_idP].scheduling_info.LCID_status[i] =
	    LCID_EMPTY;
	UE_mac_inst[module_idP].scheduling_info.LCID_buffer_remain[i] = 0;
    }
160

161 162
  if(nfapi_mode == 3) {
	  pthread_mutex_init(&UE_mac_inst[module_idP].UL_INFO_mutex,NULL);
163
	  UE_mac_inst[module_idP].UE_mode[0] = NOT_SYNCHED; //PRACH;
164
	  UE_mac_inst[module_idP].first_ULSCH_Tx =0;
165 166 167 168 169 170 171
	  UE_mac_inst[module_idP].SI_Decoded = 0;
	  next_ra_frame = 0;
	  next_Mod_id = 0;
	  tx_request_pdu_list = NULL;
	  tx_req_num_elems = 0;


172 173
  }

174
#ifdef CBA
175

176 177 178 179
    for (i = 0; i < NUM_MAX_CBA_GROUP; i++) {
	UE_mac_inst[module_idP].cba_last_access[i] =
	    round(uniform_rngen(1, 30));
    }
180 181

#endif
182 183
}

184

185
unsigned char *parse_header(unsigned char *mac_header,
186 187 188 189 190 191
			    unsigned char *num_ce,
			    unsigned char *num_sdu,
			    unsigned char *rx_ces,
			    unsigned char *rx_lcids,
			    unsigned short *rx_lengths,
			    unsigned short tb_length)
192
{
193

194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226
    unsigned char not_done = 1, num_ces = 0, num_cont_res =
	0, num_padding = 0, num_sdus = 0, lcid, num_sdu_cnt;
    unsigned char *mac_header_ptr = mac_header;
    unsigned short length, ce_len = 0;

    while (not_done == 1) {

	if (((SCH_SUBHEADER_FIXED *) mac_header_ptr)->E == 0) {
	    //      printf("E=0\n");
	    not_done = 0;
	}

	lcid = ((SCH_SUBHEADER_FIXED *) mac_header_ptr)->LCID;

	if (lcid < UE_CONT_RES) {
	    //printf("[MAC][UE] header %x.%x.%x\n",mac_header_ptr[0],mac_header_ptr[1],mac_header_ptr[2]);
	    if (not_done == 0) {	// last MAC SDU, length is implicit
		mac_header_ptr++;
		length =
		    tb_length - (mac_header_ptr - mac_header) - ce_len;

		for (num_sdu_cnt = 0; num_sdu_cnt < num_sdus;
		     num_sdu_cnt++) {
		    length -= rx_lengths[num_sdu_cnt];
		}
	    } else {
		if (((SCH_SUBHEADER_LONG *) mac_header_ptr)->F == 1) {
		    length =
			((((SCH_SUBHEADER_LONG *) mac_header_ptr)->
			  L_MSB & 0x7f)
			 << 8) | (((SCH_SUBHEADER_LONG *) mac_header_ptr)->
				  L_LSB & 0xff);
		    mac_header_ptr += 3;
227
#ifdef DEBUG_HEADER_PARSING
228
		    LOG_D(MAC, "[UE] parse long sdu, size %x \n", length);
229
#endif
gauthier's avatar
gauthier committed
230

231 232 233 234 235
		} else {	//if (((SCH_SUBHEADER_SHORT *)mac_header_ptr)->F == 0) {
		    length = ((SCH_SUBHEADER_SHORT *) mac_header_ptr)->L;
		    mac_header_ptr += 2;
		}
	    }
236

237
#ifdef DEBUG_HEADER_PARSING
238 239
	    LOG_D(MAC, "[UE] sdu %d lcid %d length %d (offset now %ld)\n",
		  num_sdus, lcid, length, mac_header_ptr - mac_header);
240
#endif
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
	    rx_lcids[num_sdus] = lcid;
	    rx_lengths[num_sdus] = length;
	    num_sdus++;
	} else {		// This is a control element subheader
	    if (lcid == SHORT_PADDING) {
		num_padding++;
		mac_header_ptr++;
	    } else {
		rx_ces[num_ces] = lcid;
		num_ces++;
		mac_header_ptr++;

		if (lcid == TIMING_ADV_CMD) {
		    ce_len++;
		} else if (lcid == UE_CONT_RES) {

		    // FNA: check MAC Header is one of thoses defined in Annex B of 36.321
		    // Check there is only 1 Contention Resolution
		    if (num_cont_res) {
			LOG_W(MAC,
			      "[UE] Msg4 Wrong received format: More than 1 Contention Resolution\n");
			// exit parsing
			return NULL;

		    }
		    // UE_CONT_RES shall never be the last subheader unless this is the only MAC subheader
		    if ((not_done == 0)
			&& ((num_sdus) || (num_ces > 1) || (num_padding))) {
			LOG_W(MAC,
			      "[UE] Msg4 Wrong received format: Contention Resolution after num_ces=%d num_sdus=%d num_padding=%d\n",
			      num_ces, num_sdus, num_padding);
			// exit parsing
			return NULL;
		    }
		    num_cont_res++;
		    ce_len += 6;
		}
	    }
279

280
#ifdef DEBUG_HEADER_PARSING
281 282
	    LOG_D(MAC, "[UE] ce %d lcid %d (offset now %ld)\n", num_ces,
		  lcid, mac_header_ptr - mac_header);
283
#endif
284
	}
285 286
    }

287 288
    *num_ce = num_ces;
    *num_sdu = num_sdus;
289

290
    return (mac_header_ptr);
291 292
}

293 294 295
uint32_t
ue_get_SR(module_id_t module_idP, int CC_id, frame_t frameP,
	  uint8_t eNB_id, uint16_t rnti, sub_frame_t subframe)
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
    // no UL-SCH resources available for this tti && UE has a valid PUCCH resources for SR configuration for this tti
    //  int MGL=6;// measurement gap length in ms
    int MGRP = 0;		// measurement gap repetition period in ms
    int gapOffset = -1;
    int T = 0;

    DevCheck(module_idP < (int) NB_UE_INST, module_idP, NB_UE_INST, 0);

    AssertFatal(CC_id == 0,
		"Transmission on secondary CCs is not supported yet\n");

    // determin the measurement gap
    if (UE_mac_inst[module_idP].measGapConfig != NULL) {
	if (UE_mac_inst[module_idP].measGapConfig->choice.setup.
	    gapOffset.present == MeasGapConfig__setup__gapOffset_PR_gp0) {
	    MGRP = 40;
	    gapOffset =
		UE_mac_inst[module_idP].measGapConfig->choice.
		setup.gapOffset.choice.gp0;
	} else if (UE_mac_inst[module_idP].measGapConfig->choice.
		   setup.gapOffset.present ==
		   MeasGapConfig__setup__gapOffset_PR_gp1) {
	    MGRP = 80;
	    gapOffset =
		UE_mac_inst[module_idP].measGapConfig->choice.
		setup.gapOffset.choice.gp1;
	} else {
	    LOG_W(MAC, "Measurement GAP offset is unknown\n");
	}

	T = MGRP / 10;
	DevAssert(T != 0);

	//check the measurement gap and sr prohibit timer
	if ((subframe == gapOffset % 10)
	    && ((frameP % T) == (floor(gapOffset / 10)))
	    && (UE_mac_inst[module_idP].
		scheduling_info.sr_ProhibitTimer_Running == 0)) {
	    UE_mac_inst[module_idP].scheduling_info.SR_pending = 1;
	    return (0);
	}
339 340
    }

341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384
    if ((UE_mac_inst[module_idP].physicalConfigDedicated != NULL) &&
	(UE_mac_inst[module_idP].scheduling_info.SR_pending == 1) &&
	(UE_mac_inst[module_idP].scheduling_info.SR_COUNTER <
	 (1 <<
	  (2 +
	   UE_mac_inst[module_idP].
	   physicalConfigDedicated->schedulingRequestConfig->choice.setup.
	   dsr_TransMax)))) {
	LOG_D(MAC,
	      "[UE %d][SR %x] Frame %d subframe %d PHY asks for SR (SR_COUNTER/dsr_TransMax %d/%d), SR_pending %d\n",
	      module_idP, rnti, frameP, subframe,
	      UE_mac_inst[module_idP].scheduling_info.SR_COUNTER,
	      (1 <<
	       (2 +
		UE_mac_inst[module_idP].
		physicalConfigDedicated->schedulingRequestConfig->choice.
		setup.dsr_TransMax)),
	      UE_mac_inst[module_idP].scheduling_info.SR_pending);

	UE_mac_inst[module_idP].scheduling_info.SR_COUNTER++;

	// start the sr-prohibittimer : rel 9 and above
	if (UE_mac_inst[module_idP].scheduling_info.sr_ProhibitTimer > 0) {	// timer configured
	    UE_mac_inst[module_idP].scheduling_info.sr_ProhibitTimer--;
	    UE_mac_inst[module_idP].scheduling_info.
		sr_ProhibitTimer_Running = 1;
	} else {
	    UE_mac_inst[module_idP].scheduling_info.
		sr_ProhibitTimer_Running = 0;
	}

	LOG_D(MAC,
	      "[UE %d][SR %x] Frame %d subframe %d send SR indication (SR_COUNTER/dsr_TransMax %d/%d), SR_pending %d\n",
	      module_idP, rnti, frameP, subframe,
	      UE_mac_inst[module_idP].scheduling_info.SR_COUNTER,
	      (1 <<
	       (2 +
		UE_mac_inst[module_idP].
		physicalConfigDedicated->schedulingRequestConfig->choice.
		setup.dsr_TransMax)),
	      UE_mac_inst[module_idP].scheduling_info.SR_pending);

	//UE_mac_inst[module_idP].ul_active =1;
	return (1);		//instruct phy to signal SR
385
    } else {
386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401
	// notify RRC to relase PUCCH/SRS
	// clear any configured dl/ul
	// initiate RA
	if (UE_mac_inst[module_idP].scheduling_info.SR_pending) {
	    // release all pucch resource
	    UE_mac_inst[module_idP].physicalConfigDedicated = NULL;
	    UE_mac_inst[module_idP].ul_active = 0;
	    UE_mac_inst[module_idP].BSR_reporting_active =
		BSR_TRIGGER_NONE;

	    LOG_I(MAC, "[UE %d] Release all SRs \n", module_idP);
	}
	UE_mac_inst[module_idP].scheduling_info.SR_pending = 0;
	UE_mac_inst[module_idP].scheduling_info.SR_COUNTER = 0;
	return (0);
    }
402 403
}

404 405
//------------------------------------------------------------------------------
void
406
ue_send_sdu(module_id_t module_idP,
407 408
	    uint8_t CC_id,
	    frame_t frameP,
409 410
	    sub_frame_t subframeP,
	    uint8_t * sdu, uint16_t sdu_len, uint8_t eNB_index)
fnabet's avatar
fnabet committed
411 412
//------------------------------------------------------------------------------
{
413

414 415 416 417
    unsigned char rx_ces[MAX_NUM_CE], num_ce, num_sdu, i, *payload_ptr;
    unsigned char rx_lcids[NB_RB_MAX];
    unsigned short rx_lengths[NB_RB_MAX];
    unsigned char *tx_sdu;
Gabriel's avatar
Gabriel committed
418
#if UE_TIMING_TRACE
419
    start_meas(&UE_mac_inst[module_idP].rx_dlsch_sdu);
Gabriel's avatar
Gabriel committed
420
#endif
421 422
    VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME
	(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_SEND_SDU, VCD_FUNCTION_IN);
423 424


425
  //LOG_D(MAC,"sdu: %x.%x.%x\n",sdu[0],sdu[1],sdu[2]);
426

427 428 429 430 431 432 433
    if (opt_enabled) {
	trace_pdu(1, sdu, sdu_len, module_idP, 3,
		  UE_mac_inst[module_idP].crnti, frameP, subframeP, 0, 0);
	LOG_D(OPT,
	      "[UE %d][DLSCH] Frame %d trace pdu for rnti %x  with size %d\n",
	      module_idP, frameP, UE_mac_inst[module_idP].crnti, sdu_len);
    }
434

435 436 437
    payload_ptr =
	parse_header(sdu, &num_ce, &num_sdu, rx_ces, rx_lcids, rx_lengths,
		     sdu_len);
438 439

#ifdef DEBUG_HEADER_PARSING
440 441 442
    LOG_D(MAC,
	  "[UE %d] ue_send_sdu : Frame %d eNB_index %d : num_ce %d num_sdu %d\n",
	  module_idP, frameP, eNB_index, num_ce, num_sdu);
443 444 445
#endif

#if defined(ENABLE_MAC_PAYLOAD_DEBUG)
446
    LOG_T(MAC, "[UE %d] First 32 bytes of DLSCH : \n", module_idP);
447

448 449 450
    for (i = 0; i < 32; i++) {
	LOG_T(MAC, "%x.", sdu[i]);
    }
451

452
    LOG_T(MAC, "\n");
453 454
#endif

455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482
    if (payload_ptr != NULL) {

	for (i = 0; i < num_ce; i++) {
	    //    printf("ce %d : %d\n",i,rx_ces[i]);
	    switch (rx_ces[i]) {
	    case UE_CONT_RES:

		LOG_I(MAC,
		      "[UE %d][RAPROC] Frame %d : received contention resolution msg: %x.%x.%x.%x.%x.%x, Terminating RA procedure\n",
		      module_idP, frameP, payload_ptr[0], payload_ptr[1],
		      payload_ptr[2], payload_ptr[3], payload_ptr[4],
		      payload_ptr[5]);

		if (UE_mac_inst[module_idP].RA_active == 1) {
		    LOG_I(MAC,
			  "[UE %d][RAPROC] Frame %d : Clearing RA_active flag\n",
			  module_idP, frameP);
		    UE_mac_inst[module_idP].RA_active = 0;
		    // check if RA procedure has finished completely (no contention)
		    tx_sdu = &UE_mac_inst[module_idP].CCCH_pdu.payload[3];

		    //Note: 3 assumes sizeof(SCH_SUBHEADER_SHORT) + PADDING CE, which is when UL-Grant has TBS >= 9 (64 bits)
		    // (other possibility is 1 for TBS=7 (SCH_SUBHEADER_FIXED), or 2 for TBS=8 (SCH_SUBHEADER_FIXED+PADDING or SCH_SUBHEADER_SHORT)
		    for (i = 0; i < 6; i++)
			if (tx_sdu[i] != payload_ptr[i]) {
			    LOG_E(MAC,
				  "[UE %d][RAPROC] Contention detected, RA failed\n",
				  module_idP);
483 484 485
			    if(nfapi_mode == 3) { // Panos: phy_stub mode
			    	// Panos: Modification for phy_stub mode operation here. We only need to make sure that the ue_mode is back to
			    	// PRACH state.
486
			    	LOG_I(MAC, "nfapi_mode3: Setting UE_mode BACK to PRACH 1\n");
487 488 489 490 491 492
			    	UE_mac_inst[module_idP].UE_mode[eNB_index] = PRACH;
			    	//ra_failed(module_idP,CC_id,eNB_index);UE_mac_inst[module_idP].RA_contention_resolution_timer_active = 0;
			    	}
			    else{
			    	ra_failed(module_idP, CC_id, eNB_index);
			    }
493 494 495 496 497 498 499 500 501 502 503 504 505 506 507
			    UE_mac_inst
				[module_idP].
				RA_contention_resolution_timer_active = 0;
			    VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME
				(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_SEND_SDU,
				 VCD_FUNCTION_OUT);
			    return;
			}

		    LOG_I(MAC,
			  "[UE %d][RAPROC] Frame %d : Clearing contention resolution timer\n",
			  module_idP, frameP);
		    UE_mac_inst
			[module_idP].
			RA_contention_resolution_timer_active = 0;
508 509 510 511 512 513 514 515
		    if(nfapi_mode == 3) // phy_stub mode
		    	{
		    	//Panos: Modification for phy_stub mode operation here. We only need to change the ue_mode to PUSCH
		    	UE_mac_inst[module_idP].UE_mode[eNB_index] = PUSCH;
		    	}
		    else { // Full stack mode
		    	ra_succeeded(module_idP,CC_id,eNB_index);
		    }
516
		}
517

518 519
		payload_ptr += 6;
		break;
520

521
	    case TIMING_ADV_CMD:
522
#ifdef DEBUG_HEADER_PARSING
523 524
		LOG_D(MAC, "[UE] CE %d : UE Timing Advance : %d\n", i,
		      payload_ptr[0]);
525
#endif
526 527

	  // Panos: Eliminate call to process_timing_advance for the phy_stub UE operation mode. Is this correct?
528 529 530 531
      if (nfapi_mode!=3)
      {
    	  process_timing_advance(module_idP,CC_id,payload_ptr[0]);
      }
532 533 534
      payload_ptr++;
      break;

535
	    case DRX_CMD:
536
#ifdef DEBUG_HEADER_PARSING
537
		LOG_D(MAC, "[UE] CE %d : UE DRX :", i);
538
#endif
539 540 541 542
		payload_ptr++;
		break;
	    }
	}
543

544
	for (i = 0; i < num_sdu; i++) {
545
#ifdef DEBUG_HEADER_PARSING
546 547
	    LOG_D(MAC, "[UE] SDU %d : LCID %d, length %d\n", i,
		  rx_lcids[i], rx_lengths[i]);
548
#endif
549
	    if (rx_lcids[i] == CCCH) {
550

551 552 553 554
		LOG_D(MAC,
		      "[UE %d] rnti %x Frame %d : DLSCH -> DL-CCCH, RRC message (eNB %d, %d bytes)\n",
		      module_idP, UE_mac_inst[module_idP].crnti, frameP,
		      eNB_index, rx_lengths[i]);
555 556

#if defined(ENABLE_MAC_PAYLOAD_DEBUG)
557
		int j;
558

559 560 561
		for (j = 0; j < rx_lengths[i]; j++) {
		    LOG_T(MAC, "%x.", (uint8_t) payload_ptr[j]);
		}
562

563
		LOG_T(MAC, "\n");
564
#endif
565

566
		mac_rrc_data_ind_ue(module_idP,
567 568 569 570 571
				 CC_id,
				 frameP, subframeP,
				 UE_mac_inst[module_idP].crnti,
				 CCCH,
				 (uint8_t *) payload_ptr,
572
				 rx_lengths[i], eNB_index, 0);
573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590

	    } else if ((rx_lcids[i] == DCCH) || (rx_lcids[i] == DCCH1)) {
		LOG_D(MAC,
		      "[UE %d] Frame %d : DLSCH -> DL-DCCH%d, RRC message (eNB %d, %d bytes)\n",
		      module_idP, frameP, rx_lcids[i], eNB_index,
		      rx_lengths[i]);
		mac_rlc_data_ind(module_idP, UE_mac_inst[module_idP].crnti,
				 eNB_index, frameP, ENB_FLAG_NO,
				 MBMS_FLAG_NO, rx_lcids[i],
				 (char *) payload_ptr, rx_lengths[i], 1,
				 NULL);

	    } else if ((rx_lcids[i] < NB_RB_MAX) && (rx_lcids[i] > DCCH1)) {

		LOG_D(MAC,
		      "[UE %d] Frame %d : DLSCH -> DL-DTCH%d (eNB %d, %d bytes)\n",
		      module_idP, frameP, rx_lcids[i], eNB_index,
		      rx_lengths[i]);
591 592

#if defined(ENABLE_MAC_PAYLOAD_DEBUG)
593 594 595 596
		int j;
		for (j = 0; j < rx_lengths[i]; j++)
		    LOG_T(MAC, "%x.", (unsigned char) payload_ptr[j]);
		LOG_T(MAC, "\n");
597
#endif
598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616
		mac_rlc_data_ind(module_idP,
				 UE_mac_inst[module_idP].crnti,
				 eNB_index,
				 frameP,
				 ENB_FLAG_NO,
				 MBMS_FLAG_NO,
				 rx_lcids[i],
				 (char *) payload_ptr, rx_lengths[i], 1,
				 NULL);
	    } else {
		LOG_E(MAC, "[UE %d] Frame %d : unknown LCID %d (eNB %d)\n",
		      module_idP, frameP, rx_lcids[i], eNB_index);
	    }
	    payload_ptr += rx_lengths[i];
	}
    }				// end if (payload_ptr != NULL)

    VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME
	(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_SEND_SDU, VCD_FUNCTION_OUT);
Gabriel's avatar
Gabriel committed
617
#if UE_TIMING_TRACE
618
    stop_meas(&UE_mac_inst[module_idP].rx_dlsch_sdu);
Gabriel's avatar
Gabriel committed
619
#endif
620 621
}

622 623 624
void
ue_decode_si(module_id_t module_idP, int CC_id, frame_t frameP,
	     uint8_t eNB_index, void *pdu, uint16_t len)
625
{
Gabriel's avatar
Gabriel committed
626 627 628
#if UE_TIMING_TRACE
    start_meas(&UE_mac_inst[module_idP].rx_si);
#endif
629 630 631 632 633 634
    VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME
	(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_DECODE_SI, VCD_FUNCTION_IN);

    LOG_D(MAC, "[UE %d] Frame %d Sending SI to RRC (LCID Id %d,len %d)\n",
	  module_idP, frameP, BCCH, len);

635
    mac_rrc_data_ind_ue(module_idP, CC_id, frameP, 0,	// unknown subframe
636
		     SI_RNTI,
637
		     BCCH, (uint8_t *) pdu, len, eNB_index,
638 639 640
		     0);
    VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME
	(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_DECODE_SI, VCD_FUNCTION_OUT);
Gabriel's avatar
Gabriel committed
641
#if UE_TIMING_TRACE
642
    stop_meas(&UE_mac_inst[module_idP].rx_si);
Gabriel's avatar
Gabriel committed
643
#endif
644 645 646 647 648 649 650 651 652 653 654 655 656
    if (opt_enabled == 1) {
	trace_pdu(0,
		  (uint8_t *) pdu,
		  len,
		  module_idP,
		  4,
		  0xffff,
		  UE_mac_inst[module_idP].rxFrame,
		  UE_mac_inst[module_idP].rxSubframe, 0, 0);
	LOG_D(OPT,
	      "[UE %d][BCH] Frame %d trace pdu for CC_id %d rnti %x with size %d\n",
	      module_idP, frameP, CC_id, 0xffff, len);
    }
657 658
}

659 660 661
void
ue_decode_p(module_id_t module_idP, int CC_id, frame_t frameP,
	    uint8_t eNB_index, void *pdu, uint16_t len)
662
{
Gabriel's avatar
Gabriel committed
663 664 665
#if UE_TIMING_TRACE
    start_meas(&UE_mac_inst[module_idP].rx_p);
#endif
666 667 668 669 670 671 672
    VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME
	(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_DECODE_PCCH, VCD_FUNCTION_IN);

    LOG_D(MAC,
	  "[UE %d] Frame %d Sending Paging message to RRC (LCID Id %d,len %d)\n",
	  module_idP, frameP, PCCH, len);

673
    mac_rrc_data_ind_ue(module_idP, CC_id, frameP, 0,	// unknown subframe
674
		     P_RNTI,
675
		     PCCH, (uint8_t *) pdu, len, eNB_index,
676 677 678
		     0);
    VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME
	(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_DECODE_PCCH, VCD_FUNCTION_OUT);
Gabriel's avatar
Gabriel committed
679
#if UE_TIMING_TRACE
680
    stop_meas(&UE_mac_inst[module_idP].rx_p);
Gabriel's avatar
Gabriel committed
681
#endif
682 683 684 685 686 687 688 689 690 691 692 693 694
    if (opt_enabled == 1) {
	trace_pdu(0,
		  (uint8_t *) pdu,
		  len,
		  module_idP,
		  4,
		  P_RNTI,
		  UE_mac_inst[module_idP].rxFrame,
		  UE_mac_inst[module_idP].rxSubframe, 0, 0);
	LOG_D(OPT,
	      "[UE %d][BCH] Frame %d trace pdu for CC_id %d rnti %x with size %d\n",
	      module_idP, frameP, CC_id, P_RNTI, len);
    }
695 696
}

Cedric Roux's avatar
Cedric Roux committed
697
#if defined(Rel10) || defined(Rel14)
698
unsigned char *parse_mch_header(unsigned char *mac_header,
699 700 701 702
				unsigned char *num_sdu,
				unsigned char *rx_lcids,
				unsigned short *rx_lengths,
				unsigned short tb_length)
703
{
704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744
    unsigned char not_done = 1, num_sdus = 0, lcid, i;
    unsigned char *mac_header_ptr = mac_header;
    unsigned short length;

    while (not_done == 1) {
	if (((SCH_SUBHEADER_FIXED *) mac_header_ptr)->E == 0) {
	    not_done = 0;
	}

	lcid = ((SCH_SUBHEADER_FIXED *) mac_header_ptr)->LCID;

	if (lcid < SHORT_PADDING) {	// subheader for MSI, MCCH or MTCH
	    if (not_done == 0) {	// last MAC SDU, length is implicit
		mac_header_ptr++;
		length = tb_length - (mac_header_ptr - mac_header);

		for (i = 0; i < num_sdus; i++) {
		    length -= rx_lengths[i];
		}
	    } else {		// not the last MAC SDU
		if (((SCH_SUBHEADER_LONG *) mac_header_ptr)->F == 1) {	// subheader has length of 3octets
		    //    length = ((SCH_SUBHEADER_LONG *)mac_header_ptr)->L;
		    length =
			((((SCH_SUBHEADER_LONG *) mac_header_ptr)->
			  L_MSB & 0x7f)
			 << 8) | (((SCH_SUBHEADER_LONG *) mac_header_ptr)->
				  L_LSB & 0xff);
		    mac_header_ptr += 3;
		} else {	// subheader has length of 2octets
		    length = ((SCH_SUBHEADER_SHORT *) mac_header_ptr)->L;
		    mac_header_ptr += 2;
		}
	    }

	    rx_lcids[num_sdus] = lcid;
	    rx_lengths[num_sdus] = length;
	    num_sdus++;
	} else {		// subheader for padding
	    //     if (lcid == SHORT_PADDING)
	    mac_header_ptr++;
	}
745 746
    }

747 748
    *num_sdu = num_sdus;
    return (mac_header_ptr);
749 750 751
}

// this function is for sending mch_sdu from phy to mac
752 753 754 755
void
ue_send_mch_sdu(module_id_t module_idP, uint8_t CC_id, frame_t frameP,
		uint8_t * sdu, uint16_t sdu_len, uint8_t eNB_index,
		uint8_t sync_area)
756
{
757

758 759 760
    unsigned char num_sdu, i, *payload_ptr;
    unsigned char rx_lcids[NB_RB_MAX];
    unsigned short rx_lengths[NB_RB_MAX];
Gabriel's avatar
Gabriel committed
761
#if UE_TIMING_TRACE
762
    start_meas(&UE_mac_inst[module_idP].rx_mch_sdu);
Gabriel's avatar
Gabriel committed
763
#endif
764 765
    VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME
	(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_SEND_MCH_SDU, VCD_FUNCTION_IN);
gauthier's avatar
gauthier committed
766

767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794
    LOG_D(MAC,
	  "[UE %d] Frame %d : process the mch PDU for sync area %d \n",
	  module_idP, frameP, sync_area);
    LOG_D(MAC, "[UE %d] sdu: %x.%x\n", module_idP, sdu[0], sdu[1]);
    LOG_D(MAC, "[UE %d] parse_mch_header, demultiplex\n", module_idP);

    payload_ptr =
	parse_mch_header(sdu, &num_sdu, rx_lcids, rx_lengths, sdu_len);
    LOG_D(MAC, "[UE %d] parse_mch_header, found %d sdus\n", module_idP,
	  num_sdu);

    for (i = 0; i < num_sdu; i++) {
	if (rx_lcids[i] == MCH_SCHDL_INFO) {
	    if (UE_mac_inst[module_idP].mcch_status == 1) {
		LOG_I(MAC,
		      "[UE %d] Frame %d : MCH->MSI for sync area %d (eNB %d, %d bytes)\n",
		      module_idP, frameP, sync_area, eNB_index,
		      rx_lengths[i]);
		// ??store necessary scheduling info to ue_mac_inst in order to
		// calculate exact position of interested service (for the complex case has >1 mtch)
		// set msi_status to 1
		UE_mac_inst[module_idP].msi_status = 1;
	    }
	} else if (rx_lcids[i] == MCCH_LCHANID) {
	    LOG_I(MAC,
		  "[UE %d] Frame %d : SDU %d MCH->MCCH for sync area %d (eNB %d, %d bytes)\n",
		  module_idP, frameP, i, sync_area, eNB_index,
		  rx_lengths[i]);
795
	    mac_rrc_data_ind_ue(module_idP, CC_id, frameP, 0,	// unknown subframe
796 797
			     M_RNTI,
			     MCCH,
798
			     payload_ptr, rx_lengths[i], eNB_index,
799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819
			     sync_area);
	} else if (rx_lcids[i] == MTCH) {
	    if (UE_mac_inst[module_idP].msi_status == 1) {
		LOG_I(MAC,
		      "[UE %d] Frame %d : MCH->MTCH for sync area %d (eNB %d, %d bytes)\n",
		      module_idP, frameP, sync_area, eNB_index,
		      rx_lengths[i]);

		mac_rlc_data_ind(module_idP, UE_mac_inst[module_idP].crnti, eNB_index, frameP, ENB_FLAG_NO, MBMS_FLAG_YES, MTCH,	/*+ (maxDRB + 3), */
				 (char *) payload_ptr, rx_lengths[i], 1,
				 NULL);

	    }
	} else {
	    LOG_W(MAC,
		  "[UE %d] Frame %d : unknown sdu %d rx_lcids[%d]=%d mcch status %d eNB %d \n",
		  module_idP, frameP, rx_lengths[i], i, rx_lcids[i],
		  UE_mac_inst[module_idP].mcch_status, eNB_index);
	}

	payload_ptr += rx_lengths[i];
820
    }
gauthier's avatar
gauthier committed
821

822 823
    VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME
	(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_SEND_MCH_SDU, VCD_FUNCTION_OUT);
Gabriel's avatar
Gabriel committed
824
#if UE_TIMING_TRACE
825
    stop_meas(&UE_mac_inst[module_idP].rx_mch_sdu);
Gabriel's avatar
Gabriel committed
826
#endif
827 828
}

knopp's avatar
knopp committed
829 830 831 832 833 834
void ue_send_sl_sdu(module_id_t module_idP,
		    uint8_t CC_id,
		    frame_t frameP,
		    sub_frame_t subframeP,
		    uint8_t* sdu,
		    uint16_t sdu_len,
Tien-Thinh Nguyen's avatar
Tien-Thinh Nguyen committed
835 836
		    uint8_t eNB_index,
		    sl_discovery_flag_t sl_discovery_flag
knopp's avatar
knopp committed
837 838
		    ) {

839 840
  int rlc_sdu_len;
  char *rlc_sdu;
841
  uint32_t destinationL2Id =0x00000000;
842

Tien-Thinh Nguyen's avatar
Tien-Thinh Nguyen committed
843 844
  if (sl_discovery_flag == SL_DISCOVERY_FLAG_NO) {

845 846 847 848 849 850
  // Notes: 1. no control elements are supported yet
  //        2. we exit with error if LCID != 3
  //        3. we exit with error if E=1 (more than one SDU/CE)
  // extract header
  SLSCH_SUBHEADER_24_Bit_DST_LONG *longh = (SLSCH_SUBHEADER_24_Bit_DST_LONG *)sdu;
  AssertFatal(longh->E==0,"E is non-zero\n");
851
  AssertFatal(((longh->LCID==3)|(longh->LCID==10)),"LCID is %d (not 3 or 10)\n",longh->LCID);
852 853
  //filter incoming packet based on destination address
  destinationL2Id = (longh->DST07<<16) | (longh->DST815 <<8) | (longh->DST1623);
854
  LOG_I( MAC, "[DestinationL2Id:  0x%08x]  \n", destinationL2Id );
855 856 857 858
  //in case of 1-n communication, verify that UE belongs to that group
  int i=0;
  for (i=0; i< MAX_NUM_DEST; i++)
     if (UE_mac_inst[module_idP].destinationList[i] == destinationL2Id) break;
859
  //match the destinationL2Id with UE L2Id or groupL2ID
860
  if (!((destinationL2Id == UE_mac_inst[module_idP].sourceL2Id) | (i < MAX_NUM_DEST))){
861 862 863 864 865
     LOG_I( MAC, "[Destination Id is neither matched with Source Id nor with Group Id, drop the packet!!! \n");
     return;
  }


866 867 868 869 870 871 872 873
  if (longh->F==1) {
    rlc_sdu_len = ((longh->L_MSB<<8)&0x7F00)|(longh->L_LSB&0xFF);
    rlc_sdu = sdu+sizeof(SLSCH_SUBHEADER_24_Bit_DST_LONG);
  }
  else {
    rlc_sdu_len = ((SLSCH_SUBHEADER_24_Bit_DST_SHORT *)sdu)->L;
    rlc_sdu = sdu+sizeof(SLSCH_SUBHEADER_24_Bit_DST_SHORT);
  }
knopp's avatar
knopp committed
874 875 876 877 878 879 880
  mac_rlc_data_ind(
		   module_idP,
		   0x1234,
		   eNB_index,
		   frameP,
		   ENB_FLAG_NO,
		   MBMS_FLAG_NO,
881
		   longh->LCID, //3/10
882 883
		   rlc_sdu,
		   rlc_sdu_len,
knopp's avatar
knopp committed
884 885
		   1,
		   NULL);
Tien-Thinh Nguyen's avatar
Tien-Thinh Nguyen committed
886
  } else { //SL_DISCOVERY
887
     uint16_t len = sdu_len;
888
     LOG_I( MAC, "SL DISCOVERY \n");
889 890
     // Panos: Ask TTN if we should be calling mac_rrc_data_ind_ue() instead of mac_rrc_data_ind() now!
     /*mac_rrc_data_ind(module_idP,
Tien-Thinh Nguyen's avatar
Tien-Thinh Nguyen committed
891 892 893 894 895
                      CC_id,
                      frameP,subframeP,
                      UE_mac_inst[module_idP].crnti,
                      SL_DISCOVERY,
                      sdu, //(uint8_t*)&UE_mac_inst[Mod_id].SL_Discovery[0].Rx_buffer.Payload[0],
William Johnson's avatar
William Johnson committed
896
                      len,
Tien-Thinh Nguyen's avatar
Tien-Thinh Nguyen committed
897 898
                      ENB_FLAG_NO,
                      eNB_index,
899 900 901 902 903 904 905 906 907 908
                      0);*/
     mac_rrc_data_ind_ue(module_idP,
                           CC_id,
                           frameP,subframeP,
                           UE_mac_inst[module_idP].crnti,
                           SL_DISCOVERY,
                           sdu, //(uint8_t*)&UE_mac_inst[Mod_id].SL_Discovery[0].Rx_buffer.Payload[0],
                           len,
                           eNB_index,
                           0);
Tien-Thinh Nguyen's avatar
Tien-Thinh Nguyen committed
909 910

  }
knopp's avatar
knopp committed
911 912 913
}


914
int8_t ue_get_mbsfn_sf_alloction (module_id_t module_idP, uint8_t mbsfn_sync_area, unsigned char eNB_index)
915

916
{
917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932
    // currently there is one-to-one mapping between sf allocation pattern and sync area
    if (mbsfn_sync_area >= MAX_MBSFN_AREA) {
	LOG_W(MAC,
	      "[UE %" PRIu8 "] MBSFN synchronization area %" PRIu8
	      " out of range for eNB %" PRIu8 "\n", module_idP,
	      mbsfn_sync_area, eNB_index);
	return -1;
    } else if (UE_mac_inst[module_idP].
	       mbsfn_SubframeConfig[mbsfn_sync_area] != NULL) {
	return mbsfn_sync_area;
    } else {
	LOG_W(MAC,
	      "[UE %" PRIu8 "] MBSFN Subframe Config pattern %" PRIu8
	      " not found \n", module_idP, mbsfn_sync_area);
	return -1;
    }
933
}
934

935 936 937 938
int
ue_query_mch(module_id_t module_idP, uint8_t CC_id, uint32_t frameP,
	     uint32_t subframe, uint8_t eNB_index, uint8_t * sync_area,
	     uint8_t * mcch_active)
939
{
940

941 942 943 944 945
    int i = 0, j = 0, ii = 0, msi_pos = 0, mcch_mcs = -1;
    int mcch_flag = 0, mtch_flag = 0, msi_flag = 0;
    int mbsfn_period = 0;	// 1<<(UE_mac_inst[module_idP].mbsfn_SubframeConfig[0]->radioframeAllocationPeriod);
    int mcch_period = 0;	// 32<<(UE_mac_inst[module_idP].mbsfn_AreaInfo[0]->mcch_Config_r9.mcch_RepetitionPeriod_r9);
    int mch_scheduling_period = -1;
946

947
    int frame_FDD = 1;
948

949

Gabriel's avatar
Gabriel committed
950
#if UE_TIMING_TRACE
951
    start_meas(&UE_mac_inst[module_idP].ue_query_mch);
Gabriel's avatar
Gabriel committed
952
#endif
953

954 955 956 957
    if (UE_mac_inst[module_idP].pmch_Config[0]) {
	mch_scheduling_period =
	    8 << (UE_mac_inst[module_idP].
		  pmch_Config[0]->mch_SchedulingPeriod_r9);
958
    }
959

960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053
    for (i = 0; i < UE_mac_inst[module_idP].num_active_mbsfn_area; i++) {
	// assume, that there is always a mapping
	if ((j =
	     ue_get_mbsfn_sf_alloction(module_idP, i, eNB_index)) == -1) {
	    return -1;		// continue;
	}

	ii = 0;
	msi_pos = 0;
	mbsfn_period =
	    1 << (UE_mac_inst[module_idP].
		  mbsfn_SubframeConfig[0]->radioframeAllocationPeriod);
	mcch_period =
	    32 << (UE_mac_inst[module_idP].
		   mbsfn_AreaInfo[0]->mcch_Config_r9.
		   mcch_RepetitionPeriod_r9);

	LOG_D(MAC,
	      "[UE %d] Frame %d subframe %d: Checking MBSFN Sync Area %d/%d with SF allocation %d/%d for MCCH and MTCH (mbsfn period %d, mcch period %d,mac sched period (%d,%ld))\n",
	      module_idP, frameP, subframe, i,
	      UE_mac_inst[module_idP].num_active_mbsfn_area, j,
	      UE_mac_inst[module_idP].num_sf_allocation_pattern,
	      mbsfn_period, mcch_period, mch_scheduling_period,
	      UE_mac_inst[module_idP].
	      mbsfn_SubframeConfig[j]->radioframeAllocationOffset);

	// get the real MCS value
	switch (UE_mac_inst[module_idP].mbsfn_AreaInfo[i]->
		mcch_Config_r9.signallingMCS_r9) {
	case 0:
	    mcch_mcs = 2;
	    break;

	case 1:
	    mcch_mcs = 7;
	    break;

	case 2:
	    mcch_mcs = 13;
	    break;

	case 3:
	    mcch_mcs = 19;
	    break;
	}

	if (frameP % mbsfn_period == UE_mac_inst[module_idP].mbsfn_SubframeConfig[j]->radioframeAllocationOffset) {	// MBSFN frameP
	    if (UE_mac_inst[module_idP].mbsfn_SubframeConfig[j]->subframeAllocation.present == MBSFN_SubframeConfig__subframeAllocation_PR_oneFrame) {	// one-frameP format

		if (UE_mac_inst[module_idP].pmch_Config[0]) {
		    //  Find the first subframe in this MCH to transmit MSI
		    if (frameP % mch_scheduling_period ==
			UE_mac_inst[module_idP].
			mbsfn_SubframeConfig
			[j]->radioframeAllocationOffset) {
			while (ii == 0) {
			    ii = UE_mac_inst[module_idP].
				mbsfn_SubframeConfig[j]->
				subframeAllocation.choice.
				oneFrame.buf[0] & (0x80 >> msi_pos);
			    msi_pos++;
			}
		    }
		}

		if (UE_mac_inst[module_idP].tdd_Config == NULL)
		    frame_FDD = 1;
		else
		    frame_FDD = 0;
		// Check if the subframe is for MSI, MCCH or MTCHs and Set the correspoding flag to 1
		switch (subframe) {
		case 1:
		    if (frame_FDD == 1) {
			if ((UE_mac_inst[module_idP].mbsfn_SubframeConfig
			     [j]->subframeAllocation.choice.oneFrame.
			     buf[0] & MBSFN_FDD_SF1) == MBSFN_FDD_SF1) {
			    if (msi_pos == 1) {
				msi_flag = 1;
			    }

			    if ((frameP % mcch_period ==
				 UE_mac_inst[module_idP].mbsfn_AreaInfo
				 [i]->mcch_Config_r9.mcch_Offset_r9)
				&&
				((UE_mac_inst[module_idP].mbsfn_AreaInfo
				  [i]->mcch_Config_r9.sf_AllocInfo_r9.
				  buf[0] & MBSFN_FDD_SF1) ==
				 MBSFN_FDD_SF1)) {
				mcch_flag = 1;
			    }

			    mtch_flag = 1;
			}
		    }
1054

1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079
		    break;

		case 2:
		    if (frame_FDD == 1) {
			if ((UE_mac_inst[module_idP].mbsfn_SubframeConfig
			     [j]->subframeAllocation.choice.oneFrame.
			     buf[0] & MBSFN_FDD_SF2) == MBSFN_FDD_SF2) {
			    if (msi_pos == 2) {
				msi_flag = 1;
			    }

			    if ((frameP % mcch_period ==
				 UE_mac_inst[module_idP].mbsfn_AreaInfo
				 [i]->mcch_Config_r9.mcch_Offset_r9)
				&&
				((UE_mac_inst[module_idP].mbsfn_AreaInfo
				  [i]->mcch_Config_r9.sf_AllocInfo_r9.
				  buf[0] & MBSFN_FDD_SF2) ==
				 MBSFN_FDD_SF2)) {
				mcch_flag = 1;
			    }

			    mtch_flag = 1;
			}
		    }
1080

1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126
		    break;

		case 3:
		    if (frame_FDD == 0) {	//TDD
			if ((UE_mac_inst[module_idP].mbsfn_SubframeConfig
			     [j]->subframeAllocation.choice.oneFrame.
			     buf[0] & MBSFN_TDD_SF3) == MBSFN_TDD_SF3) {
			    if (msi_pos == 1) {
				msi_flag = 1;
			    }

			    if ((frameP % mcch_period ==
				 UE_mac_inst[module_idP].mbsfn_AreaInfo
				 [i]->mcch_Config_r9.mcch_Offset_r9)
				&&
				((UE_mac_inst[module_idP].mbsfn_AreaInfo
				  [i]->mcch_Config_r9.sf_AllocInfo_r9.
				  buf[0] & MBSFN_TDD_SF3) ==
				 MBSFN_TDD_SF3)) {
				mcch_flag = 1;
			    }

			    mtch_flag = 1;
			}
		    } else {	// FDD
			if ((UE_mac_inst[module_idP].mbsfn_SubframeConfig
			     [j]->subframeAllocation.choice.oneFrame.
			     buf[0] & MBSFN_FDD_SF3) == MBSFN_FDD_SF3) {
			    if (msi_pos == 3) {
				msi_flag = 1;
			    }

			    if ((frameP % mcch_period ==
				 UE_mac_inst[module_idP].mbsfn_AreaInfo
				 [i]->mcch_Config_r9.mcch_Offset_r9)
				&&
				((UE_mac_inst[module_idP].mbsfn_AreaInfo
				  [i]->mcch_Config_r9.sf_AllocInfo_r9.
				  buf[0] & MBSFN_FDD_SF3) ==
				 MBSFN_FDD_SF3)) {
				mcch_flag = 1;
			    }

			    mtch_flag = 1;
			}
		    }
1127

1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152
		    break;

		case 4:
		    if (frame_FDD == 0) {
			if ((UE_mac_inst[module_idP].mbsfn_SubframeConfig
			     [j]->subframeAllocation.choice.oneFrame.
			     buf[0] & MBSFN_TDD_SF4) == MBSFN_TDD_SF4) {
			    if (msi_pos == 2) {
				msi_flag = 1;
			    }

			    if ((frameP % mcch_period ==
				 UE_mac_inst[module_idP].mbsfn_AreaInfo
				 [i]->mcch_Config_r9.mcch_Offset_r9)
				&&
				((UE_mac_inst[module_idP].mbsfn_AreaInfo
				  [i]->mcch_Config_r9.sf_AllocInfo_r9.
				  buf[0] & MBSFN_TDD_SF4) ==
				 MBSFN_TDD_SF4)) {
				mcch_flag = 1;
			    }

			    mtch_flag = 1;
			}
		    }
1153

1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178
		    break;

		case 6:
		    if (frame_FDD == 1) {
			if ((UE_mac_inst[module_idP].mbsfn_SubframeConfig
			     [j]->subframeAllocation.choice.oneFrame.
			     buf[0] & MBSFN_FDD_SF6) == MBSFN_FDD_SF6) {
			    if (msi_pos == 4) {
				msi_flag = 1;
			    }

			    if ((frameP % mcch_period ==
				 UE_mac_inst[module_idP].mbsfn_AreaInfo
				 [i]->mcch_Config_r9.mcch_Offset_r9)
				&&
				((UE_mac_inst[module_idP].mbsfn_AreaInfo
				  [i]->mcch_Config_r9.sf_AllocInfo_r9.
				  buf[0] & MBSFN_FDD_SF6) ==
				 MBSFN_FDD_SF6)) {
				mcch_flag = 1;
			    }

			    mtch_flag = 1;
			}
		    }
1179

1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 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 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317
		    break;

		case 7:
		    if (frame_FDD == 0) {	// TDD
			if ((UE_mac_inst[module_idP].mbsfn_SubframeConfig
			     [j]->subframeAllocation.choice.oneFrame.
			     buf[0] & MBSFN_TDD_SF7) == MBSFN_TDD_SF7) {
			    if (msi_pos == 3) {
				msi_flag = 1;
			    }

			    if ((frameP % mcch_period ==
				 UE_mac_inst[module_idP].mbsfn_AreaInfo
				 [i]->mcch_Config_r9.mcch_Offset_r9)
				&&
				((UE_mac_inst[module_idP].mbsfn_AreaInfo
				  [i]->mcch_Config_r9.sf_AllocInfo_r9.
				  buf[0] & MBSFN_TDD_SF7) ==
				 MBSFN_TDD_SF7)) {
				mcch_flag = 1;
			    }

			    mtch_flag = 1;
			}
		    } else {	// FDD
			if ((UE_mac_inst[module_idP].mbsfn_SubframeConfig
			     [j]->subframeAllocation.choice.oneFrame.
			     buf[0] & MBSFN_FDD_SF7) == MBSFN_FDD_SF7) {
			    if (msi_pos == 5) {
				msi_flag = 1;
			    }

			    if ((frameP % mcch_period ==
				 UE_mac_inst[module_idP].mbsfn_AreaInfo
				 [i]->mcch_Config_r9.mcch_Offset_r9)
				&&
				((UE_mac_inst[module_idP].mbsfn_AreaInfo
				  [i]->mcch_Config_r9.sf_AllocInfo_r9.
				  buf[0] & MBSFN_FDD_SF7) ==
				 MBSFN_FDD_SF7)) {
				mcch_flag = 1;
			    }

			    mtch_flag = 1;
			}
		    }

		    break;

		case 8:
		    if (frame_FDD == 0) {	//TDD
			if ((UE_mac_inst[module_idP].mbsfn_SubframeConfig
			     [j]->subframeAllocation.choice.oneFrame.
			     buf[0] & MBSFN_TDD_SF8) == MBSFN_TDD_SF8) {
			    if (msi_pos == 4) {
				msi_flag = 1;
			    }

			    if ((frameP % mcch_period ==
				 UE_mac_inst[module_idP].mbsfn_AreaInfo
				 [i]->mcch_Config_r9.mcch_Offset_r9)
				&&
				((UE_mac_inst[module_idP].mbsfn_AreaInfo
				  [i]->mcch_Config_r9.sf_AllocInfo_r9.
				  buf[0] & MBSFN_TDD_SF8) ==
				 MBSFN_TDD_SF8)) {
				mcch_flag = 1;
			    }

			    mtch_flag = 1;
			}
		    } else {	// FDD
			if ((UE_mac_inst[module_idP].mbsfn_SubframeConfig
			     [j]->subframeAllocation.choice.oneFrame.
			     buf[0] & MBSFN_FDD_SF8) == MBSFN_FDD_SF8) {
			    if (msi_pos == 6) {
				msi_flag = 1;
			    }

			    if ((frameP % mcch_period ==
				 UE_mac_inst[module_idP].mbsfn_AreaInfo
				 [i]->mcch_Config_r9.mcch_Offset_r9)
				&&
				((UE_mac_inst[module_idP].mbsfn_AreaInfo
				  [i]->mcch_Config_r9.sf_AllocInfo_r9.
				  buf[0] & MBSFN_FDD_SF8) ==
				 MBSFN_FDD_SF8)) {
				mcch_flag = 1;
			    }

			    mtch_flag = 1;
			}
		    }

		    break;

		case 9:
		    if (frame_FDD == 0) {
			if ((UE_mac_inst[module_idP].mbsfn_SubframeConfig
			     [j]->subframeAllocation.choice.oneFrame.
			     buf[0] & MBSFN_TDD_SF9) == MBSFN_TDD_SF9) {
			    if (msi_pos == 5) {
				msi_flag = 1;
			    }

			    if ((frameP % mcch_period ==
				 UE_mac_inst[module_idP].mbsfn_AreaInfo
				 [i]->mcch_Config_r9.mcch_Offset_r9)
				&&
				((UE_mac_inst[module_idP].mbsfn_AreaInfo
				  [i]->mcch_Config_r9.sf_AllocInfo_r9.
				  buf[0] & MBSFN_TDD_SF9) ==
				 MBSFN_TDD_SF9)) {
				mcch_flag = 1;
			    }

			    mtch_flag = 1;
			}
		    }

		    break;
		}		// end switch

		// sf allocation is non-overlapping
		if ((msi_flag == 1) || (mcch_flag == 1)
		    || (mtch_flag == 1)) {
		    LOG_D(MAC,
			  "[UE %d] Frame %d Subframe %d: sync area %d SF alloc %d: msi flag %d, mcch flag %d, mtch flag %d\n",
			  module_idP, frameP, subframe, i, j, msi_flag,
			  mcch_flag, mtch_flag);

		    *sync_area = i;
		    break;
		}
	    } else {		// four-frameP format
	    }
	}
    }				// end of for
Gabriel's avatar
Gabriel committed
1318
#if UE_TIMING_TRACE
1319
    stop_meas(&UE_mac_inst[module_idP].ue_query_mch);
Gabriel's avatar
Gabriel committed
1320
#endif
1321

1322 1323 1324
    if ((mcch_flag == 1)) {	// || (msi_flag==1))
	*mcch_active = 1;
    }
1325

1326 1327 1328 1329 1330 1331 1332 1333 1334
    if ((mcch_flag == 1)
	|| ((msi_flag == 1) && (UE_mac_inst[module_idP].mcch_status == 1))) {
	return mcch_mcs;
    } else if ((mtch_flag == 1)
	       && (UE_mac_inst[module_idP].msi_status == 1)) {
	return UE_mac_inst[module_idP].pmch_Config[0]->dataMCS_r9;
    } else {
	return -1;
    }
1335 1336 1337 1338
}

#endif

1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349
unsigned char
generate_ulsch_header(uint8_t * mac_header,
		      uint8_t num_sdus,
		      uint8_t short_padding,
		      uint16_t * sdu_lengths,
		      uint8_t * sdu_lcids,
		      POWER_HEADROOM_CMD * power_headroom,
		      uint16_t * crnti,
		      BSR_SHORT * truncated_bsr,
		      BSR_SHORT * short_bsr,
		      BSR_LONG * long_bsr, unsigned short post_padding)
1350
{
1351

1352 1353 1354 1355
    SCH_SUBHEADER_FIXED *mac_header_ptr =
	(SCH_SUBHEADER_FIXED *) mac_header;
    unsigned char first_element = 0, last_size = 0, i;
    unsigned char mac_header_control_elements[16], *ce_ptr;
1356

1357
    LOG_D(MAC, "[UE] Generate ULSCH : num_sdus %d\n", num_sdus);
1358
#ifdef DEBUG_HEADER_PARSING
1359

1360 1361 1362 1363
    for (i = 0; i < num_sdus; i++) {
	LOG_T(MAC, "[UE] sdu %d : lcid %d length %d", i, sdu_lcids[i],
	      sdu_lengths[i]);
    }
1364

1365
    LOG_T(MAC, "\n");
1366
#endif
1367 1368 1369 1370 1371 1372 1373 1374 1375
    ce_ptr = &mac_header_control_elements[0];

    if ((short_padding == 1) || (short_padding == 2)) {
	mac_header_ptr->R = 0;
	mac_header_ptr->E = 0;
	mac_header_ptr->LCID = SHORT_PADDING;
	first_element = 1;
	last_size = 1;
    }
1376

1377 1378 1379 1380 1381 1382 1383
    if (short_padding == 2) {
	mac_header_ptr->E = 1;
	mac_header_ptr++;
	mac_header_ptr->R = 0;
	mac_header_ptr->E = 0;
	mac_header_ptr->LCID = SHORT_PADDING;
	last_size = 1;
1384 1385
    }

1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401
    if (power_headroom) {
	if (first_element > 0) {
	    mac_header_ptr->E = 1;
	    mac_header_ptr++;
	} else {
	    first_element = 1;
	}

	mac_header_ptr->R = 0;
	mac_header_ptr->E = 0;
	mac_header_ptr->LCID = POWER_HEADROOM;
	last_size = 1;
	*((POWER_HEADROOM_CMD *) ce_ptr) = (*power_headroom);
	ce_ptr += sizeof(POWER_HEADROOM_CMD);
	LOG_D(MAC, "phr header size %zu\n", sizeof(POWER_HEADROOM_CMD));
    }
1402

1403
    if (crnti) {
1404
#ifdef DEBUG_HEADER_PARSING
1405 1406
	LOG_D(MAC, "[UE] CRNTI : %x (first_element %d)\n", *crnti,
	      first_element);
1407
#endif
1408

1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422
	if (first_element > 0) {
	    mac_header_ptr->E = 1;
	    mac_header_ptr++;
	} else {
	    first_element = 1;
	}

	mac_header_ptr->R = 0;
	mac_header_ptr->E = 0;
	mac_header_ptr->LCID = CRNTI;
	last_size = 1;
	*((uint16_t *) ce_ptr) = (*crnti);
	ce_ptr += sizeof(uint16_t);
	//    printf("offset %d\n",ce_ptr-mac_header_control_elements);
1423 1424
    }

1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437
    if (truncated_bsr) {
	if (first_element > 0) {
	    mac_header_ptr->E = 1;
	    /*
	       printf("last subheader : %x (R%d,E%d,LCID%d)\n",*(unsigned char*)mac_header_ptr,
	       ((SCH_SUBHEADER_FIXED *)mac_header_ptr)->R,
	       ((SCH_SUBHEADER_FIXED *)mac_header_ptr)->E,
	       ((SCH_SUBHEADER_FIXED *)mac_header_ptr)->LCID);
	     */
	    mac_header_ptr++;
	} else {
	    first_element = 1;
	}
1438 1439

#ifdef DEBUG_HEADER_PARSING
1440
	LOG_D(MAC, "[UE] Scheduler Truncated BSR Header\n");
1441
#endif
1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462
	mac_header_ptr->R = 0;
	mac_header_ptr->E = 0;
	mac_header_ptr->LCID = TRUNCATED_BSR;
	last_size = 1;
	*((BSR_TRUNCATED *) ce_ptr) = (*truncated_bsr);
	ce_ptr += sizeof(BSR_TRUNCATED);
	//    printf("(cont_res) : offset %d\n",ce_ptr-mac_header_control_elements);

    } else if (short_bsr) {
	if (first_element > 0) {
	    mac_header_ptr->E = 1;
	    /*
	       printf("last subheader : %x (R%d,E%d,LCID%d)\n",*(unsigned char*)mac_header_ptr,
	       ((SCH_SUBHEADER_FIXED *)mac_header_ptr)->R,
	       ((SCH_SUBHEADER_FIXED *)mac_header_ptr)->E,
	       ((SCH_SUBHEADER_FIXED *)mac_header_ptr)->LCID);
	     */
	    mac_header_ptr++;
	} else {
	    first_element = 1;
	}
1463

1464
#ifdef DEBUG_HEADER_PARSING
1465
	LOG_D(MAC, "[UE] Scheduler SHORT BSR Header\n");
1466
#endif
1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487
	mac_header_ptr->R = 0;
	mac_header_ptr->E = 0;
	mac_header_ptr->LCID = SHORT_BSR;
	last_size = 1;
	*((BSR_SHORT *) ce_ptr) = (*short_bsr);
	ce_ptr += sizeof(BSR_SHORT);

	//    printf("(cont_res) : offset %d\n",ce_ptr-mac_header_control_elements);
    } else if (long_bsr) {
	if (first_element > 0) {
	    mac_header_ptr->E = 1;
	    /*
	       printf("last subheader : %x (R%d,E%d,LCID%d)\n",*(unsigned char*)mac_header_ptr,
	       ((SCH_SUBHEADER_FIXED *)mac_header_ptr)->R,
	       ((SCH_SUBHEADER_FIXED *)mac_header_ptr)->E,
	       ((SCH_SUBHEADER_FIXED *)mac_header_ptr)->LCID);
	     */
	    mac_header_ptr++;
	} else {
	    first_element = 1;
	}
1488

1489
#ifdef DEBUG_HEADER_PARSING
1490
	LOG_D(MAC, "[UE] Scheduler Long BSR Header\n");
1491
#endif
1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509
	mac_header_ptr->R = 0;
	mac_header_ptr->E = 0;
	mac_header_ptr->LCID = LONG_BSR;
	last_size = 1;

	*(ce_ptr) =
	    (long_bsr->
	     Buffer_size0 << 2) | ((long_bsr->Buffer_size1 & 0x30) >> 4);
	*(ce_ptr + 1) =
	    ((long_bsr->Buffer_size1 & 0x0F) << 4) | ((long_bsr->
						       Buffer_size2 & 0x3C)
						      >> 2);
	*(ce_ptr + 2) =
	    ((long_bsr->
	      Buffer_size2 & 0x03) << 2) | (long_bsr->Buffer_size3 & 0x3F);
	ce_ptr += BSR_LONG_SIZE;

	//    printf("(cont_res) : offset %d\n",ce_ptr-mac_header_control_elements);
1510
    }
1511
    //  printf("last_size %d,mac_header_ptr %p\n",last_size,mac_header_ptr);
1512

1513
    for (i = 0; i < num_sdus; i++) {
1514
#ifdef DEBUG_HEADER_PARSING
1515 1516
	LOG_T(MAC, "[UE] sdu subheader %d (lcid %d, %d bytes)\n", i,
	      sdu_lcids[i], sdu_lengths[i]);
1517 1518
#endif

1519 1520 1521 1522
	if ((i == (num_sdus - 1))
	    && ((short_padding) || (post_padding == 0))) {
	    if (first_element > 0) {
		mac_header_ptr->E = 1;
1523
#ifdef DEBUG_HEADER_PARSING
1524 1525 1526 1527 1528
		LOG_D(MAC, "[UE] last subheader : %x (R%d,E%d,LCID%d)\n",
		      *(unsigned char *) mac_header_ptr,
		      ((SCH_SUBHEADER_FIXED *) mac_header_ptr)->R,
		      ((SCH_SUBHEADER_FIXED *) mac_header_ptr)->E,
		      ((SCH_SUBHEADER_FIXED *) mac_header_ptr)->LCID);
1529
#endif
1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588
		mac_header_ptr += last_size;
	    }
	    mac_header_ptr->R = 0;
	    mac_header_ptr->E = 0;
	    mac_header_ptr->LCID = sdu_lcids[i];
	} else {
	    if ((first_element > 0)) {
		mac_header_ptr->E = 1;
#ifdef DEBUG_HEADER_PARSING
		LOG_D(MAC, "[UE] last subheader : %x (R%d,E%d,LCID%d)\n",
		      *(unsigned char *) mac_header_ptr,
		      ((SCH_SUBHEADER_FIXED *) mac_header_ptr)->R,
		      ((SCH_SUBHEADER_FIXED *) mac_header_ptr)->E,
		      ((SCH_SUBHEADER_FIXED *) mac_header_ptr)->LCID);
#endif
		mac_header_ptr += last_size;
		//      printf("last_size %d,mac_header_ptr %p\n",last_size,mac_header_ptr);
	    } else {
		first_element = 1;

	    }

	    if (sdu_lengths[i] < 128) {
		((SCH_SUBHEADER_SHORT *) mac_header_ptr)->R = 0;	// 3
		((SCH_SUBHEADER_SHORT *) mac_header_ptr)->E = 0;
		((SCH_SUBHEADER_SHORT *) mac_header_ptr)->F = 0;
		((SCH_SUBHEADER_SHORT *) mac_header_ptr)->LCID =
		    sdu_lcids[i];
		((SCH_SUBHEADER_SHORT *) mac_header_ptr)->L =
		    (unsigned char) sdu_lengths[i];
		last_size = 2;
#ifdef DEBUG_HEADER_PARSING
		LOG_D(MAC, "[UE] short sdu\n");
		LOG_T(MAC,
		      "[UE] last subheader : %x (R%d,E%d,LCID%d,F%d,L%d)\n",
		      ((uint16_t *) mac_header_ptr)[0],
		      ((SCH_SUBHEADER_SHORT *) mac_header_ptr)->R,
		      ((SCH_SUBHEADER_SHORT *) mac_header_ptr)->E,
		      ((SCH_SUBHEADER_SHORT *) mac_header_ptr)->LCID,
		      ((SCH_SUBHEADER_SHORT *) mac_header_ptr)->F,
		      ((SCH_SUBHEADER_SHORT *) mac_header_ptr)->L);
#endif
	    } else {
		((SCH_SUBHEADER_LONG *) mac_header_ptr)->R = 0;
		((SCH_SUBHEADER_LONG *) mac_header_ptr)->E = 0;
		((SCH_SUBHEADER_LONG *) mac_header_ptr)->F = 1;
		((SCH_SUBHEADER_LONG *) mac_header_ptr)->LCID =
		    sdu_lcids[i];
		((SCH_SUBHEADER_LONG *) mac_header_ptr)->L_MSB =
		    ((unsigned short) sdu_lengths[i] >> 8) & 0x7f;
		((SCH_SUBHEADER_LONG *) mac_header_ptr)->L_LSB =
		    (unsigned short) sdu_lengths[i] & 0xff;
		((SCH_SUBHEADER_LONG *) mac_header_ptr)->padding = 0x00;
		last_size = 3;
#ifdef DEBUG_HEADER_PARSING
		LOG_D(MAC, "[UE] long sdu\n");
#endif
	    }
	}
1589
    }
gauthier's avatar
gauthier committed
1590