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sigProcLib: introduce both TS1 and TS2 RACH synch. sequences

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According to 3GPP TS 05.02, section 5.2.7, there are three
synch. sequences for Access Bursts:

  - TS0: GSM, GMSK (default),
  - TS1: EGPRS, 8-PSK,
  - TS2: EGPRS, GMSK.

Let's prepare everythyng to be able to detect all TS0-3 synch.
sequences, but keep detection of both TS1 and TS2 disabled
until the corresponding VTY option is introduced.

Change-Id: I838c21db29c54f1924dd478c2b34b46b70aab2cd
Related: OS#3054
This commit is contained in:
Vadim Yanitskiy
2018-10-17 11:01:58 +02:00
parent a439fed166
commit a79bc70737
4 changed files with 31 additions and 19 deletions
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5
GSM/GSMCommon.cpp
View File

@@ -54,7 +54,10 @@ const BitVector GSM::gEdgeTrainingSequence[] = {
const BitVector GSM::gDummyBurst("0001111101101110110000010100100111000001001000100000001111100011100010111000101110001010111010010100011001100111001111010011111000100101111101010000");
const BitVector GSM::gRACHSynchSequence("01001011011111111001100110101010001111000");
/* 3GPP TS 05.02, section 5.2.7 "Access burst (AB)", synch. sequence bits */
const BitVector GSM::gRACHSynchSequenceTS0("01001011011111111001100110101010001111000"); /* GSM, GMSK (default) */
const BitVector GSM::gRACHSynchSequenceTS1("01010100111110001000011000101111001001101"); /* EGPRS, 8-PSK */
const BitVector GSM::gRACHSynchSequenceTS2("11101111001001110101011000001101101110111"); /* EGPRS, GMSK */
// |-head-||---------midamble----------------------||--------------data----------------||t|
const BitVector GSM::gRACHBurst("0011101001001011011111111001100110101010001111000110111101111110000111001001010110011000");

4
GSM/GSMCommon.h
View File

@@ -52,7 +52,9 @@ extern const BitVector gEdgeTrainingSequence[];
extern const BitVector gDummyBurst;
/** Random access burst synch. sequence */
extern const BitVector gRACHSynchSequence;
extern const BitVector gRACHSynchSequenceTS0;
extern const BitVector gRACHSynchSequenceTS1;
extern const BitVector gRACHSynchSequenceTS2;
/** Random access burst synch. sequence, GSM 05.02 5.2.7 */
extern const BitVector gRACHBurst;