rrc_common.c 10.5 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
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
 */

22
/*! \file rrc_common.c
23
 * \brief rrc common procedures for eNB and UE
24 25
 * \author Navid Nikaein and Raymond Knopp
 * \date 2011 - 2014
26 27
 * \version 1.0
 * \company Eurecom
28
 * \email:  navid.nikaein@eurecom.fr and raymond.knopp@eurecom.fr
29
 */
30

31 32 33
#include "rrc_defs.h"
#include "rrc_extern.h"
#include "LAYER2/MAC/mac_extern.h"
34
#include "COMMON/openair_defs.h"
35
#include "COMMON/platform_types.h"
36 37 38
#include "RRC/L2_INTERFACE/openair_rrc_L2_interface.h"
#include "LAYER2/RLC/rlc.h"
#include "COMMON/mac_rrc_primitives.h"
39
#include "common/utils/LOG/log.h"
40
#include "asn1_msg.h"
41
#include "pdcp.h"
42
#include "common/utils/LOG/vcd_signal_dumper.h"
43
#include "rrc_eNB_UE_context.h"
44
#include "common/ran_context.h"
laurent's avatar
laurent committed
45
#include "openair2/RRC/LTE/rrc_proto.h"
46

47
extern RAN_CONTEXT_t RC;
48 49
extern UE_MAC_INST *UE_mac_inst;

50 51
extern mui_t rrc_eNB_mui;

52 53 54 55 56 57
//-----------------------------------------------------------------------------
int
rrc_init_global_param(
  void
)
//-----------------------------------------------------------------------------
58
{
59
  rrc_rlc_register_rrc (rrc_data_ind, NULL); //register with rlc
60 61 62 63 64 65 66 67 68 69
  DCCH_LCHAN_DESC.transport_block_size = 4;
  DCCH_LCHAN_DESC.max_transport_blocks = 16;
  DCCH_LCHAN_DESC.Delay_class = 1;
  DTCH_DL_LCHAN_DESC.transport_block_size = 52;
  DTCH_DL_LCHAN_DESC.max_transport_blocks = 20;
  DTCH_DL_LCHAN_DESC.Delay_class = 1;
  DTCH_UL_LCHAN_DESC.transport_block_size = 52;
  DTCH_UL_LCHAN_DESC.max_transport_blocks = 20;
  DTCH_UL_LCHAN_DESC.Delay_class = 1;
  return 0;
70 71
}

72 73 74
//-----------------------------------------------------------------------------
void
rrc_config_buffer(
75
  SRB_INFO *Srb_info,
76 77 78 79
  uint8_t Lchan_type,
  uint8_t Role
)
//-----------------------------------------------------------------------------
80
{
81 82 83 84
  Srb_info->Rx_buffer.payload_size = 0;
  Srb_info->Tx_buffer.payload_size = 0;
}

85

86
//-----------------------------------------------------------------------------
laurent's avatar
laurent committed
87
long binary_search_int(const int elements[], long numElem, int value)
88
//-----------------------------------------------------------------------------
89
{
winckel's avatar
winckel committed
90
  long first, last, middle, search = -1;
91 92 93
  first = 0;
  last = numElem-1;
  middle = (first+last)/2;
94

95
  if(value < elements[0]) {
96
    return first;
97
  }
98

99
  if(value > elements[last]) {
100
    return last;
101
  }
102

103
  while (first <= last) {
104
    if (elements[middle] < value) {
105
      first = middle+1;
106
    } else if (elements[middle] == value) {
107 108
      search = middle+1;
      break;
109
    } else {
110
      last = middle -1;
111
    }
112

113 114
    middle = (first+last)/2;
  }
115

116
  if (first > last) {
117
    LOG_E(RRC,"Error in binary search!");
118
  }
119

120 121 122 123 124 125 126
  return search;
}

/* This is a binary search routine which operates on an array of floating
   point numbers and returns the index of the range the value lies in
   Used for RSRP and RSRQ measurement mapping. Can potentially be used for other things
*/
127
//-----------------------------------------------------------------------------
laurent's avatar
laurent committed
128
long binary_search_float(const float elements[], long numElem, float value)
129
//-----------------------------------------------------------------------------
130
{
winckel's avatar
winckel committed
131
  long first, last, middle;
132 133 134
  first = 0;
  last = numElem-1;
  middle = (first+last)/2;
135

136
  if(value <= elements[0]) {
137
    return first;
138
  }
139

140
  if(value >= elements[last]) {
141
    return last;
142
  }
143

144
  while (last - first > 1) {
145
    if (elements[middle] > value) {
146
      last = middle;
147
    } else {
148
      first = middle;
149
    }
150

151 152
    middle = (first+last)/2;
  }
153

154
  if (first < 0 || first >= numElem) {
155
    LOG_E(RRC,"\n Error in binary search float!");
156
  }
157

158 159 160
  return first;
}

161 162 163 164 165 166 167 168 169 170 171 172 173 174 175
typedef enum { BAND_TYPE_FDD, BAND_TYPE_TDD } band_type;

typedef struct {
  band_type t;
  int band;
  unsigned long ul_minfreq, ul_maxfreq;
  unsigned long dl_minfreq, dl_maxfreq;
} band_freq;

static band_freq bands[] = {
  { BAND_TYPE_FDD, 1, 1920000000UL, 1980000000UL, 2110000000UL, 2170000000UL },
  { BAND_TYPE_FDD, 2, 1850000000UL, 1910000000UL, 1930000000UL, 1990000000UL },
  { BAND_TYPE_FDD, 3, 1710000000UL, 1785000000UL, 1805000000UL, 1880000000UL },
  { BAND_TYPE_FDD, 4, 1710000000UL, 1755000000UL, 2110000000UL, 2155000000UL },
  { BAND_TYPE_FDD, 5, 824000000UL, 849000000UL, 869000000UL, 894000000UL },
176
  /* to remove? */{ BAND_TYPE_FDD, 6, 830000000UL, 840000000UL, 875000000UL, 885000000UL },
177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253
  { BAND_TYPE_FDD, 7, 2500000000UL, 2570000000UL, 2620000000UL, 2690000000UL },
  { BAND_TYPE_FDD, 8, 880000000UL, 915000000UL, 925000000UL, 960000000UL },
  { BAND_TYPE_FDD, 9, 1749900000UL, 1784900000UL, 1844900000UL, 1879900000UL },
  { BAND_TYPE_FDD, 10, 1710000000UL, 1770000000UL, 2110000000UL, 2170000000UL },
  { BAND_TYPE_FDD, 11, 1427900000UL, 1447900000UL, 1475900000UL, 1495900000UL },
  { BAND_TYPE_FDD, 12, 699000000UL, 716000000UL, 729000000UL, 746000000UL },
  { BAND_TYPE_FDD, 13, 777000000UL, 787000000UL, 746000000UL, 756000000UL },
  { BAND_TYPE_FDD, 14, 788000000UL, 798000000UL, 758000000UL, 768000000UL },
  { BAND_TYPE_FDD, 17, 704000000UL, 716000000UL, 734000000UL, 746000000UL },
  { BAND_TYPE_FDD, 18, 815000000UL, 830000000UL, 860000000UL, 875000000UL },
  { BAND_TYPE_FDD, 19, 830000000UL, 845000000UL, 875000000UL, 890000000UL },
  { BAND_TYPE_FDD, 20, 832000000UL, 862000000UL, 791000000UL, 821000000UL },
  { BAND_TYPE_FDD, 21, 1447900000UL, 1462900000UL, 1495900000UL, 1510900000UL },
  { BAND_TYPE_FDD, 22, 3410000000UL, 3490000000UL, 3510000000UL, 3590000000UL },
  { BAND_TYPE_FDD, 23, 2000000000UL, 2020000000UL, 2180000000UL, 2200000000UL },
  { BAND_TYPE_FDD, 24, 1626500000UL, 1660500000UL, 1525000000UL, 1559000000UL },
  { BAND_TYPE_FDD, 25, 1850000000UL, 1915000000UL, 1930000000UL, 1995000000UL },

  { BAND_TYPE_TDD, 33, 1900000000UL, 1920000000UL, 1900000000UL, 1920000000UL },
  { BAND_TYPE_TDD, 34, 2010000000UL, 2025000000UL, 2010000000UL, 2025000000UL },
  { BAND_TYPE_TDD, 35, 1850000000UL, 1910000000UL, 1850000000UL, 1910000000UL },
  { BAND_TYPE_TDD, 36, 1930000000UL, 1990000000UL, 1930000000UL, 1990000000UL },
  { BAND_TYPE_TDD, 37, 1910000000UL, 1930000000UL, 1910000000UL, 1930000000UL },
  { BAND_TYPE_TDD, 38, 2570000000UL, 2620000000UL, 2570000000UL, 2620000000UL },
  { BAND_TYPE_TDD, 39, 1880000000UL, 1920000000UL, 1880000000UL, 1920000000UL },
  { BAND_TYPE_TDD, 40, 2300000000UL, 2400000000UL, 2300000000UL, 2400000000UL },
  { BAND_TYPE_TDD, 41, 2496000000UL, 2690000000UL, 2496000000UL, 2690000000UL },
  { BAND_TYPE_TDD, 42, 3400000000UL, 3600000000UL, 3400000000UL, 3600000000UL },
  { BAND_TYPE_TDD, 43, 3600000000UL, 3800000000UL, 3600000000UL, 3800000000UL },
};

typedef struct {
  int band;
  unsigned long dl_flow;
  int dl_off;
  int dl_offmin, dl_offmax;
  unsigned long ul_flow;
  int ul_off;
  int ul_offmin, ul_offmax;
} earfcn;

static earfcn earfcn_table[] = {
  { 1, 2110000000UL, 0, 0, 599, 1920000000UL, 18000, 18000, 18599 },
  { 2, 1930000000UL, 600, 600, 1199, 1850000000UL, 18600, 18600, 19199 },
  { 3, 1805000000UL, 1200, 1200, 1949, 1710000000UL, 19200, 19200, 19949 },
  { 4, 2110000000UL, 1950, 1950, 2399, 1710000000UL, 19950, 19950, 20399 },
  { 5, 869000000UL, 2400, 2400, 2649, 824000000UL, 20400, 20400, 20649 },
  { 6, 875000000UL, 2650, 2650, 2749, 830000000UL, 20650, 20650, 20749 },
  { 7, 2620000000UL, 2750, 2750, 3449, 2500000000UL, 20750, 20750, 21449 },
  { 8, 925000000UL, 3450, 3450, 3799, 880000000UL, 21450, 21450, 21799 },
  { 9, 1844900000UL, 3800, 3800, 4149, 1749900000UL, 21800, 21800, 22149 },
  { 10, 2110000000UL, 4150, 4150, 4749, 1710000000UL, 22150, 22150, 22749 },
  { 11, 1475900000UL, 4750, 4750, 4949, 1427900000UL, 22750, 22750, 22949 },
  { 12, 729000000UL, 5010, 5010, 5179, 699000000UL, 23010, 23010, 23179 },
  { 13, 746000000UL, 5180, 5180, 5279, 777000000UL, 23180, 23180, 23279 },
  { 14, 758000000UL, 5280, 5280, 5379, 788000000UL, 23280, 23280, 23379 },
  { 17, 734000000UL, 5730, 5730, 5849, 704000000UL, 23730, 23730, 23849 },
  { 18, 860000000UL, 5850, 5850, 5999, 815000000UL, 23850, 23850, 23999 },
  { 19, 875000000UL, 6000, 6000, 6149, 830000000UL, 24000, 24000, 24149 },
  { 20, 791000000UL, 6150, 6150, 6449, 832000000UL, 24150, 24150, 24449 },
  { 21, 1495900000UL, 6450, 6450, 6599, 1447900000UL, 24450, 24450, 24599 },
  { 22, 3510000000UL, 6600, 6600, 7399, 3410000000UL, 24600, 24600, 25399 },
  { 23, 2180000000UL, 7500, 7500, 7699, 2000000000UL, 25500, 25500, 25699 },
  { 24, 1525000000UL, 7700, 7700, 8039, 1626500000UL, 25700, 25700, 26039 },
  { 25, 1930000000UL, 8040, 8040, 8689, 1850000000UL, 26040, 26040, 26689 },
  { 33, 1900000000UL, 36000, 36000, 36199, 1900000000UL, 36000, 36000, 36199 },
  { 34, 2010000000UL, 36200, 36200, 36349, 2010000000UL, 36200, 36200, 36349 },
  { 35, 1850000000UL, 36350, 36350, 36949, 1850000000UL, 36350, 36350, 36949 },
  { 36, 1930000000UL, 36950, 36950, 37549, 1930000000UL, 36950, 36950, 37549 },
  { 37, 1910000000UL, 37550, 37550, 37749, 1910000000UL, 37550, 37550, 37749 },
  { 38, 2570000000UL, 37750, 37750, 38249, 2570000000UL, 37750, 37750, 38249 },
  { 39, 1880000000UL, 38250, 38250, 38649, 1880000000UL, 38250, 38250, 38649 },
  { 40, 2300000000UL, 38650, 38650, 39649, 2300000000UL, 38650, 38650, 39649 },
  { 41, 2496000000UL, 39650, 39650, 41589, 2496000000UL, 39650, 39650, 41589 },
  { 42, 3400000000UL, 41590, 41590, 43589, 3400000000UL, 41590, 41590, 43589 },
  { 43, 3600000000UL, 43590, 43590, 45589, 3600000000UL, 43590, 43590, 45589 },
};
254 255 256

int freq_to_arfcn10(int band, unsigned long freq) {
  int N = sizeof(earfcn_table) / sizeof(earfcn_table[0]);
257
  int i;
258 259 260

  for (i = 0; i < N; i++) if (bands[i].band == band) break;

261
  if (i == N) return -1;
262

263 264
  if (!(bands[i].dl_minfreq < freq && freq < bands[i].dl_maxfreq))
    return -1;
265

266 267
  return (freq - earfcn_table[i].dl_flow) / 100000UL + earfcn_table[i].dl_off;
}