| /* |
| * Copyright 2008 Free Software Foundation, Inc. |
| * Copyright 2011 Range Networks, Inc. |
| * |
| * This software is distributed under the terms of the GNU Affero Public License. |
| * See the COPYING file in the main directory for details. |
| * |
| * This use of this software may be subject to additional restrictions. |
| * See the LEGAL file in the main directory for details. |
| |
| This program is free software: you can redistribute it and/or modify |
| it under the terms of the GNU Affero General Public License as published by |
| the Free Software Foundation, either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU Affero General Public License for more details. |
| |
| You should have received a copy of the GNU Affero General Public License |
| along with this program. If not, see <http://www.gnu.org/licenses/>. |
| |
| */ |
| |
| |
| #include "GSMCommon.h" |
| |
| using namespace GSM; |
| using namespace std; |
| |
| |
| const BitVector GSM::gTrainingSequence[] = { |
| BitVector("00100101110000100010010111"), |
| BitVector("00101101110111100010110111"), |
| BitVector("01000011101110100100001110"), |
| BitVector("01000111101101000100011110"), |
| BitVector("00011010111001000001101011"), |
| BitVector("01001110101100000100111010"), |
| BitVector("10100111110110001010011111"), |
| BitVector("11101111000100101110111100"), |
| }; |
| |
| const BitVector GSM::gEdgeTrainingSequence[] = { |
| BitVector("111111001111111001111001001001111111111111001111111111001111111001111001001001"), |
| BitVector("111111001111001001111001001001111001001001001111111111001111001001111001001001"), |
| BitVector("111001111111111111001001001111001001001111001111111001111111111111001001001111"), |
| BitVector("111001111111111001001001001111001001111001111111111001111111111001001001001111"), |
| BitVector("111111111001001111001111001001001111111001111111111111111001001111001111001001"), |
| BitVector("111001111111001001001111001111001001111111111111111001111111001001001111001111"), |
| BitVector("001111001111111001001001001001111001001111111111001111001111111001001001001001"), |
| BitVector("001001001111001001001001111111111001111111001111001001001111001001001001111111"), |
| }; |
| |
| const BitVector GSM::gDummyBurst("0001111101101110110000010100100111000001001000100000001111100011100010111000101110001010111010010100011001100111001111010011111000100101111101010000"); |
| |
| /* 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"); |
| |
| |
| int32_t GSM::FNDelta(int32_t v1, int32_t v2) |
| { |
| static const int32_t halfModulus = gHyperframe/2; |
| int32_t delta = v1-v2; |
| if (delta>=halfModulus) delta -= gHyperframe; |
| else if (delta<-halfModulus) delta += gHyperframe; |
| return (int32_t) delta; |
| } |
| |
| int GSM::FNCompare(int32_t v1, int32_t v2) |
| { |
| int32_t delta = FNDelta(v1,v2); |
| if (delta>0) return 1; |
| if (delta<0) return -1; |
| return 0; |
| } |
| |
| |
| |
| |
| ostream& GSM::operator<<(ostream& os, const Time& t) |
| { |
| os << t.TN() << ":" << t.FN(); |
| return os; |
| } |
| |
| |
| // vim: ts=4 sw=4 |