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comparison src/g23m-gprs/grlc/grlc_measf.c @ 183:219afcfc6250

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src/g23m-gprs: initial import from TCS3.2/LoCosto
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 13 Oct 2016 04:24:13 +0000
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182:f02d0a0e1849 183:219afcfc6250
1 /*
2 +-----------------------------------------------------------------------------
3 | Project : GPRS (8441)
4 | Modul : GRLC
5 +-----------------------------------------------------------------------------
6 | Copyright 2002 Texas Instruments Berlin, AG
7 | All rights reserved.
8 |
9 | This file is confidential and a trade secret of Texas
10 | Instruments Berlin, AG
11 | The receipt of or possession of this file does not convey
12 | any rights to reproduce or disclose its contents or to
13 | manufacture, use, or sell anything it may describe, in
14 | whole, or in part, without the specific written consent of
15 | Texas Instruments Berlin, AG.
16 +-----------------------------------------------------------------------------
17 | Purpose : This module implements local functions for service
18 | MEAS of entity GRLC.
19 +-----------------------------------------------------------------------------
20 */
21
22 #ifndef GRLC_MEASF_C
23 #define GRLC_MEASF_C
24 #endif /* #ifndef GRLC_MEASF_C */
25
26 #define ENTITY_GRLC
27
28 /*==== INCLUDES =============================================================*/
29
30 #include "typedefs.h"
31 #include "vsi.h"
32 #include "macdef.h"
33 #include "gprs.h"
34 #include "gsm.h"
35 #include "ccdapi.h"
36 #include "prim.h"
37 #include "message.h"
38 #include "grlc.h"
39 #include "grlc_measf.h"
40
41 /*==== CONST ================================================================*/
42
43 #define I_LEVEL_MIN I_LEVEL_0
44 #define I_LEVEL_0 0 /* i.lev. is greater than C */
45 #define I_LEVEL_15 15 /* i.lev. is less than or equal to C - 28 dB */
46 #define I_LEVEL_MAX I_LEVEL_15
47 #define I_LEVEL_GAMMA_0_SKIPPED 0xF0 /* used for tracing */
48 #define I_LEVEL_GAMMA_1_SKIPPED 0xF1 /* used for tracing */
49 #define I_LEVEL_GAMMA_2_SKIPPED 0xF2 /* used for tracing */
50 #define I_LEVEL_GAMMA_3_SKIPPED 0xF3 /* used for tracing */
51 #define I_LEVEL_STATE_MISMATCH 0xFD /* used for tracing */
52 #define I_LEVEL_IDX_TO_SMALL 0xFE /* used for tracing */
53 #define I_LEVEL_NOT_AVAIL 0xFF /* used for tracing */
54
55 /*==== LOCAL VARS ===========================================================*/
56
57 /*==== LOCAL TYPES===========================================================*/
58
59 /*==== PUBLIC FUNCTIONS =====================================================*/
60 /*
61 +------------------------------------------------------------------------------
62 | Function : meas_c_calc_mean
63 +------------------------------------------------------------------------------
64 | Description : This function calculates the mean of the received signal level
65 | of the four normal bursts that compose a block. It returns
66 | the amount of bursts with valid receibed signal values.
67 |
68 | Parameters : burst_level - receive signal level of the first valid downlink
69 | PDCH radio block
70 | radio_freq - radio frequency of TDMA frame within a
71 | radio block
72 | ss_block - mean of the received signal level
73 | pb_rdc - Pb reduction
74 |
75 +------------------------------------------------------------------------------
76 */
77 GLOBAL UBYTE meas_c_calc_mean ( UBYTE *burst_level,
78 USHORT *radio_freq,
79 ULONG *ss_block,
80 UBYTE *pb_rdc,
81 T_CGRLC_freq_param *freq_param )
82 {
83 UBYTE i; /* used for counting */
84 UBYTE vld_smpl = 0; /* valid measurement samples */
85
86 TRACE_FUNCTION( "meas_c_calc_mean" );
87
88 *pb_rdc = 0;
89 *ss_block = 0;
90
91 /* add up all measurement data */
92 for( i = 0; i < MAC_BURST_PER_BLOCK; i++ )
93 {
94 if( burst_level[i] NEQ MAC_RXLEV_NONE )
95 {
96 vld_smpl++;
97
98 *ss_block += burst_level[i];
99
100 if( !( grlc_data->tm.freq_param.pdch_hopping EQ FALSE AND
101 grlc_data->tm.freq_param.bcch_arfcn EQ radio_freq[i] ) )
102 {
103 *pb_rdc += 1;
104 }
105 }
106 }
107
108 /* calculate the mean */
109 if( vld_smpl )
110 {
111 *ss_block = ( *ss_block * MEAS_ACRCY ) / vld_smpl;
112 }
113
114 return( vld_smpl );
115 } /* meas_c_calc_mean() */
116
117 /*
118 +------------------------------------------------------------------------------
119 | Function : meas_int_fill_rel_iLevel
120 +------------------------------------------------------------------------------
121 | Description : ...
122 |
123 | Parameters : ...
124 |
125 +------------------------------------------------------------------------------
126 */
127 GLOBAL void meas_int_fill_rel_iLevel ( UBYTE *v_ilev,
128 UBYTE *ilev,
129 UBYTE idx,
130 USHORT c_raw_data_lev )
131 {
132 UBYTE val; /* holds interference level data */
133
134 if( grlc_data->meas.ilev.ilev[idx] NEQ CGRLC_ILEV_NONE )
135 {
136 if( c_raw_data_lev < grlc_data->meas.ilev.ilev[idx] * MEAS_ACRCY )
137 {
138 *ilev = I_LEVEL_MIN;
139 }
140 else
141 {
142 val = ( c_raw_data_lev - grlc_data->meas.ilev.ilev[idx] * MEAS_ACRCY ) /
143 ( 2 * MEAS_ACRCY ) + 1;
144
145 if( val > I_LEVEL_MAX ) *ilev = I_LEVEL_MAX;
146 else *ilev = val;
147 }
148
149 *v_ilev = TRUE;
150 }
151 else
152 {
153 *v_ilev = FALSE;
154 }
155 } /* meas_int_fill_rel_iLevel() */