1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
/*!\brief Initilization and reconfiguration routines for LTE PHY */
#include "phy_init.h"
#include "PHY/phy_extern.h"
#include "PHY/CODING/coding_extern.h"
#include "PHY/LTE_ESTIMATION/lte_estimation.h"
#include "PHY/LTE_REFSIG/lte_refsig.h"
#include "PHY/LTE_TRANSPORT/transport_common_proto.h"
void generate_64qam_table(void)
{
int a,b,c,index;
for (a=-1; a<=1; a+=2)
for (b=-1; b<=1; b+=2)
for (c=-1; c<=1; c+=2) {
index = (1+a)*2 + (1+b) + (1+c)/2;
qam64_table[index] = -a*(QAM64_n1 + b*(QAM64_n2 + (c*QAM64_n3))); // 0 1 2
}
}
void generate_16qam_table(void)
{
int a,b,index;
for (a=-1; a<=1; a+=2)
for (b=-1; b<=1; b+=2) {
index = (1+a) + (1+b)/2;
qam16_table[index] = -a*(QAM16_n1 + (b*QAM16_n2));
}
}
void generate_qpsk_table(void)
{
int a,index;
for (a=-1; a<=1; a+=2) {
index = (1+a)/2;
qpsk_table[index] = -a*QPSK;
}
}
void init_lte_top(LTE_DL_FRAME_PARMS *frame_parms)
{
ccodelte_init();
ccodelte_init_inv();
init_dfts();
phy_generate_viterbi_tables_lte();
load_codinglib();
lte_sync_time_init(frame_parms);
generate_ul_ref_sigs();
generate_ul_ref_sigs_rx();
generate_64qam_table();
generate_16qam_table();
generate_qpsk_table();
generate_RIV_tables();
init_unscrambling_lut();
init_scrambling_lut();
//set_taus_seed(1328);
}
void free_lte_top(void)
{
free_codinglib();
lte_sync_time_free();
/* free_ul_ref_sigs() is called in phy_free_lte_eNB() */
}
/*
* @}*/