bump version to 0.1.10~1

Default value of 0 may be too harsh, especially given random Rx/Tx delay
in 1 SPS receive mode.

CommonLibs/Configuration.cpp

@@ -35,7 +35,7 @@
 #ifdef DEBUG_CONFIG
 #define	debugLogEarly gLogEarly
 #else
-#define	debugLogEarly
+#define	debugLogEarly(x,y,z)
 #endif
 
 

CommonLibs/Logger.cpp

@@ -38,6 +38,14 @@
 
 using namespace std;
 
+// Switches to enable/disable logging targets
+// MUST BE DEFINED BEFORE gConfig FOR gLogEarly() TO WORK CORRECTLY
+bool gLogToConsole = true;
+bool gLogToSyslog = false;
+FILE *gLogToFile = NULL;
+Mutex gLogToLock;
+
+
 // Reference to a global config table, used all over the system.
 extern ConfigurationTable gConfig;
 
@@ -67,10 +75,6 @@ const char *levelNames[] = {
 	"EMERG", "ALERT", "CRIT", "ERR", "WARNING", "NOTICE", "INFO", "DEBUG"
 };
 int numLevels = 8;
-bool gLogToConsole = true;
-bool gLogToSyslog = false;
-FILE *gLogToFile = NULL;
-Mutex gLogToLock;
 
 
 int levelStringToInt(const string& name)
@@ -271,7 +275,30 @@ void gLogEarly(int level, const char *fmt, ...)
 	va_list args;
 
 	va_start(args, fmt);
-	vsyslog(level | LOG_USER, fmt, args);
+
+	if (gLogToSyslog) {
+		va_list args_copy;
+		va_copy(args_copy, args);
+		vsyslog(level | LOG_USER, fmt, args_copy);
+		va_end(args_copy);
+	}
+
+	if (gLogToConsole) {
+		va_list args_copy;
+		va_copy(args_copy, args);
+		vprintf(fmt, args_copy);
+		printf("\n");
+		va_end(args_copy);
+	}
+
+	if (gLogToFile) {
+		va_list args_copy;
+		va_copy(args_copy, args);
+		vfprintf(gLogToFile, fmt, args_copy);
+		fprintf(gLogToFile, "\n");
+		va_end(args_copy);
+	}
+
 	va_end(args);
 }
 

GSM/GSMCommon.cpp

@@ -56,6 +56,9 @@ const BitVector GSM::gDummyBurst("0001111101101110110000010100100111000001001000
 
 const BitVector GSM::gRACHSynchSequence("01001011011111111001100110101010001111000");
 
+//                               |-head-||---------midamble----------------------||--------------data----------------||t|
+const BitVector GSM::gRACHBurst("0011101001001011011111111001100110101010001111000110111101111110000111001001010110011000");
+
 
 int32_t GSM::FNDelta(int32_t v1, int32_t v2)
 {

GSM/GSMCommon.h

@@ -53,6 +53,8 @@ extern const BitVector gDummyBurst;
 
 /** Random access burst synch. sequence */
 extern const BitVector gRACHSynchSequence;
+/** Random access burst synch. sequence, GSM 05.02 5.2.7 */
+extern const BitVector gRACHBurst;
 
 
 /**@name Modulus operations for frame numbers. */

Transceiver52M/Transceiver.cpp

@@ -71,7 +71,7 @@ TransceiverState::~TransceiverState()
   }
 }
 
-bool TransceiverState::init(int filler, size_t sps, float scale, size_t rtsc)
+bool TransceiverState::init(int filler, size_t sps, float scale, size_t rtsc, unsigned rach_delay)
 {
   signalVector *burst;
 
@@ -90,6 +90,9 @@ bool TransceiverState::init(int filler, size_t sps, float scale, size_t rtsc)
       case Transceiver::FILLER_EDGE_RAND:
         burst = generateEdgeBurst(rtsc);
         break;
+      case Transceiver::FILLER_ACCESS_RAND:
+        burst = genRandAccessBurst(rach_delay, sps, n);
+        break;
       case Transceiver::FILLER_ZERO:
       default:
         burst = generateEmptyBurst(sps, n);
@@ -119,7 +122,8 @@ Transceiver::Transceiver(int wBasePort,
     mTransmitLatency(wTransmitLatency), mRadioInterface(wRadioInterface),
     rssiOffset(wRssiOffset),
     mSPSTx(tx_sps), mSPSRx(rx_sps), mChans(chans), mOn(false),
-    mTxFreq(0.0), mRxFreq(0.0), mTSC(0), mMaxExpectedDelay(0), mWriteBurstToDiskMask(0)
+    mTxFreq(0.0), mRxFreq(0.0), mTSC(0), mMaxExpectedDelayAB(2*rx_sps), mMaxExpectedDelayNB(2*rx_sps),
+    mWriteBurstToDiskMask(0)
 {
   txFullScale = mRadioInterface->fullScaleInputValue();
   rxFullScale = mRadioInterface->fullScaleOutputValue();
@@ -156,7 +160,7 @@ Transceiver::~Transceiver()
  * are still expected to report clock indications through control channel
  * activity.
  */
-bool Transceiver::init(int filler, size_t rtsc)
+bool Transceiver::init(int filler, size_t rtsc, unsigned rach_delay)
 {
   int d_srcport, d_dstport, c_srcport, c_dstport;
 
@@ -212,7 +216,7 @@ bool Transceiver::init(int filler, size_t rtsc)
     if (i && filler == FILLER_DUMMY)
       filler = FILLER_ZERO;
 
-    mStates[i].init(filler, mSPSTx, txFullScale, rtsc);
+    mStates[i].init(filler, mSPSTx, txFullScale, rtsc, rach_delay);
   }
 
   return true;
@@ -535,18 +539,19 @@ int Transceiver::detectBurst(TransceiverState *state, signalVector &burst,
   switch (type) {
   case EDGE:
     rc = detectEdgeBurst(burst, mTSC, threshold, mSPSRx,
-                         amp, toa, mMaxExpectedDelay);
+                         amp, toa, mMaxExpectedDelayNB);
     if (rc > 0)
       break;
     else
       type = TSC;
   case TSC:
     rc = analyzeTrafficBurst(burst, mTSC, threshold, mSPSRx,
-                             amp, toa, mMaxExpectedDelay);
+                             amp, toa, mMaxExpectedDelayNB);
     break;
   case RACH:
     threshold = 6.0;
-    rc = detectRACHBurst(burst, threshold, mSPSRx, amp, toa);
+    rc = detectRACHBurst(burst, threshold, mSPSRx, amp, toa,
+                         mMaxExpectedDelayAB);
     break;
   default:
     LOG(ERR) << "Invalid correlation type";
@@ -753,9 +758,16 @@ void Transceiver::driveControl(size_t chan)
     //set expected maximum time-of-arrival
     int maxDelay;
     sscanf(buffer,"%3s %s %d",cmdcheck,command,&maxDelay);
-    mMaxExpectedDelay = maxDelay; // 1 GSM symbol is approx. 1 km
+    mMaxExpectedDelayAB = maxDelay; // 1 GSM symbol is approx. 1 km
     sprintf(response,"RSP SETMAXDLY 0 %d",maxDelay);
   }
+  else if (strcmp(command,"SETMAXDLYNB")==0) {
+    //set expected maximum time-of-arrival
+    int maxDelay;
+    sscanf(buffer,"%3s %s %d",cmdcheck,command,&maxDelay);
+    mMaxExpectedDelayNB = maxDelay; // 1 GSM symbol is approx. 1 km
+    sprintf(response,"RSP SETMAXDLYNB 0 %d",maxDelay);
+  }
   else if (strcmp(command,"SETRXGAIN")==0) {
     //set expected maximum time-of-arrival
     int newGain;
@@ -901,10 +913,11 @@ void Transceiver::driveReceiveRadio()
   }
 }
 
-void Transceiver::logRxBurst(SoftVector *burst, GSM::Time time, double dbm,
+void Transceiver::logRxBurst(size_t chan, SoftVector *burst, GSM::Time time, double dbm,
                              double rssi, double noise, double toa)
 {
   LOG(DEBUG) << std::fixed << std::right
+    << " chan: "   << chan
     << " time: "   << time
     << " RSSI: "   << std::setw(5) << std::setprecision(1) << rssi
                    << "dBFS/" << std::setw(6) << -dbm << "dBm"
@@ -937,7 +950,7 @@ void Transceiver::driveReceiveFIFO(size_t chan)
     nbits = gSlotLen * 3;
 
   dBm = RSSI + rssiOffset;
-  logRxBurst(rxBurst, burstTime, dBm, RSSI, noise, TOA);
+  logRxBurst(chan, rxBurst, burstTime, dBm, RSSI, noise, TOA);
 
   TOAint = (int) (TOA * 256.0 + 0.5); // round to closest integer
 

Transceiver52M/Transceiver.h

@@ -54,7 +54,7 @@ struct TransceiverState {
   ~TransceiverState();
 
   /* Initialize a multiframe slot in the filler table */
-  bool init(int filler, size_t sps, float scale, size_t rtsc);
+  bool init(int filler, size_t sps, float scale, size_t rtsc, unsigned rach_delay);
 
   int chanType[8];
 
@@ -107,7 +107,7 @@ public:
   ~Transceiver();
 
   /** Start the control loop */
-  bool init(int filler, size_t rtsc);
+  bool init(int filler, size_t rtsc, unsigned rach_delay);
 
   /** attach the radioInterface receive FIFO */
   bool receiveFIFO(VectorFIFO *wFIFO, size_t chan)
@@ -156,6 +156,7 @@ public:
     FILLER_ZERO,
     FILLER_NORM_RAND,
     FILLER_EDGE_RAND,
+    FILLER_ACCESS_RAND,
   };
 
 private:
@@ -227,7 +228,8 @@ private:
   double mTxFreq;                      ///< the transmit frequency
   double mRxFreq;                      ///< the receive frequency
   unsigned mTSC;                       ///< the midamble sequence code
-  unsigned mMaxExpectedDelay;          ///< maximum expected time-of-arrival offset in GSM symbols
+  unsigned mMaxExpectedDelayAB;        ///< maximum expected time-of-arrival offset in GSM symbols for Access Bursts (RACH)
+  unsigned mMaxExpectedDelayNB;        ///< maximum expected time-of-arrival offset in GSM symbols for Normal Bursts
   unsigned mWriteBurstToDiskMask;      ///< debug: bitmask to indicate which timeslots to dump to disk
 
   std::vector<TransceiverState> mStates;
@@ -274,7 +276,7 @@ protected:
   /** set priority on current thread */
   void setPriority(float prio = 0.5) { mRadioInterface->setPriority(prio); }
 
-  void logRxBurst(SoftVector *burst, GSM::Time time, double dbm,
+  void logRxBurst(size_t chan, SoftVector *burst, GSM::Time time, double dbm,
                   double rssi, double noise, double toa);
 };
 

Transceiver52M/osmo-trx.cpp

@@ -75,6 +75,7 @@ struct trx_config {
 	unsigned rx_sps;
 	unsigned chans;
 	unsigned rtsc;
+	unsigned rach_delay;
 	bool extref;
 	Transceiver::FillerType filler;
 	bool diversity;
@@ -187,6 +188,9 @@ bool trx_setup_config(struct trx_config *config)
 	case Transceiver::FILLER_EDGE_RAND:
 		fillstr = "EDGE busrts with random payload";
 		break;
+	case Transceiver::FILLER_ACCESS_RAND:
+		fillstr = "Access busrts with random payload";
+		break;
 	}
 
 	std::ostringstream ost("");
@@ -266,7 +270,7 @@ Transceiver *makeTransceiver(struct trx_config *config, RadioInterface *radio)
 	trx = new Transceiver(config->port, config->addr.c_str(),
 			      config->tx_sps, config->rx_sps, config->chans,
 			      GSM::Time(3,0), radio, config->rssi_offset);
-	if (!trx->init(config->filler, config->rtsc)) {
+	if (!trx->init(config->filler, config->rtsc, config->rach_delay)) {
 		LOG(ALERT) << "Failed to initialize transceiver";
 		delete trx;
 		return NULL;
@@ -318,7 +322,8 @@ static void print_help()
 		"  -c    Number of ARFCN channels (default=1)\n"
 		"  -f    Enable C0 filler table\n"
 		"  -o    Set baseband frequency offset (default=auto)\n"
-		"  -r    Random burst test mode with TSC\n"
+		"  -r    Random Normal Burst test mode with TSC\n"
+		"  -A    Random Access Burst test mode with delay\n"
 		"  -R    RSSI to dBm offset in dB (default=0)\n"
 		"  -S    Swap channels (UmTRX only)\n",
 		"EMERG, ALERT, CRT, ERR, WARNING, NOTICE, INFO, DEBUG");
@@ -333,6 +338,7 @@ static void handle_options(int argc, char **argv, struct trx_config *config)
 	config->rx_sps = DEFAULT_RX_SPS;
 	config->chans = DEFAULT_CHANS;
 	config->rtsc = 0;
+	config->rach_delay = 0;
 	config->extref = false;
 	config->filler = Transceiver::FILLER_ZERO;
 	config->diversity = false;
@@ -341,7 +347,7 @@ static void handle_options(int argc, char **argv, struct trx_config *config)
 	config->swap_channels = false;
 	config->edge = false;
 
-	while ((option = getopt(argc, argv, "ha:l:i:p:c:dxfo:s:r:R:Se")) != -1) {
+	while ((option = getopt(argc, argv, "ha:l:i:p:c:dxfo:s:r:A:R:Se")) != -1) {
 		switch (option) {
 		case 'h':
 			print_help();
@@ -381,6 +387,10 @@ static void handle_options(int argc, char **argv, struct trx_config *config)
 			config->rtsc = atoi(optarg);
 			config->filler = Transceiver::FILLER_NORM_RAND;
 			break;
+		case 'A':
+			config->rach_delay = atoi(optarg);
+			config->filler = Transceiver::FILLER_ACCESS_RAND;
+			break;
 		case 'R':
 			config->rssi_offset = atof(optarg);
 			break;
@@ -417,6 +427,12 @@ static void handle_options(int argc, char **argv, struct trx_config *config)
 		print_help();
 		exit(0);
 	}
+
+	if (config->rach_delay > 68) {
+		printf("RACH delay is too big %i\n\n", config->rach_delay);
+		print_help();
+		exit(0);
+	}
 }
 
 int main(int argc, char *argv[])

Transceiver52M/sigProcLib.cpp

@@ -1005,6 +1005,45 @@ signalVector *genRandNormalBurst(int tsc, int sps, int tn)
   return burst;
 }
 
+/*
+ * Generate a random GSM access burst.
+ */
+signalVector *genRandAccessBurst(int delay, int sps, int tn)
+{
+  if ((tn < 0) || (tn > 7))
+    return NULL;
+  if ((sps != 1) && (sps != 4))
+    return NULL;
+  if (delay > 68)
+    return NULL;
+
+  int i = 0;
+  BitVector *bits = new BitVector(88+delay);
+  signalVector *burst;
+
+  /* delay */
+  for (; i < delay; i++)
+    (*bits)[i] = 0;
+
+  /* head and synch bits */
+  for (int n = 0; i < 49+delay; i++, n++)
+    (*bits)[i] = gRACHBurst[n];
+
+  /* Random bits */
+  for (; i < 85+delay; i++)
+    (*bits)[i] = rand() % 2;
+
+  /* Tail bits */
+  for (; i < 88+delay; i++)
+    (*bits)[i] = 0;
+
+  int guard = 68-delay + !(tn % 4);
+  burst = modulateBurst(*bits, guard, sps);
+  delete bits;
+
+  return burst;
+}
+
 signalVector *generateEmptyBurst(int sps, int tn)
 {
 	if ((tn < 0) || (tn > 7))
@@ -1816,21 +1855,22 @@ int detectGeneralBurst(signalVector &rxBurst,
  *
  * Correlation window parameters:
  *   target: Tail bits + RACH length (reduced from 41 to a multiple of 4)
- *   head: Search 4 symbols before target 
- *   tail: Search 10 symbols after target
+ *   head: Search 8 symbols before target
+ *   tail: Search 4 symbols + maximum expected delay
  */
 int detectRACHBurst(signalVector &rxBurst,
             float thresh,
             int sps,
             complex &amp,
-            float &toa)
+            float &toa,
+            unsigned maxTOA)
 {
   int rc, target, head, tail;
   CorrelationSequence *sync;
 
   target = 8 + 40;
-  head = 4;
-  tail = 10;
+  head = 8;
+  tail = 4 + maxTOA;
   sync = gRACHSequence;
 
   rc = detectGeneralBurst(rxBurst, thresh, sps, amp, toa,

Transceiver52M/sigProcLib.h

@@ -122,6 +122,9 @@ signalVector *generateEmptyBurst(int sps, int tn);
 /** Generate a normal GSM burst with random payload - 4 or 1 SPS */
 signalVector *genRandNormalBurst(int tsc, int sps, int tn);
 
+/** Generate an access GSM burst with random payload - 4 or 1 SPS */
+signalVector *genRandAccessBurst(int delay, int sps, int tn);
+
 /** Generate a dummy GSM burst - 4 or 1 SPS */
 signalVector *generateDummyBurst(int sps, int tn);
 
@@ -192,13 +195,15 @@ bool energyDetect(signalVector &rxBurst,
         @param sps The number of samples per GSM symbol.
         @param amplitude The estimated amplitude of received RACH burst.
         @param TOA The estimate time-of-arrival of received RACH burst.
+        @param maxTOA The maximum expected time-of-arrival
         @return positive if threshold value is reached, negative on error, zero otherwise
 */
 int detectRACHBurst(signalVector &rxBurst,
                     float detectThreshold,
                     int sps,
                     complex &amplitude,
-                    float &TOA);
+                    float &TOA,
+                    unsigned maxTOA);
 
 /**
         Normal burst correlator, detector, channel estimator.

debian/changelog

@@ -1,3 +1,10 @@
+osmo-trx (0.1.10~1) trusty; urgency=medium
+
+  * some EDGE support in master
+  * fairwaves/rach-filler branch
+
+ -- Kirill Zakharenko <earwin@gmail.com>  Sun, 27 Mar 2016 19:37:39 +0100
+
 osmo-trx (0.1.9) trusty; urgency=medium
 
   * Ask Ivan, really

debian/rules

@@ -5,6 +5,9 @@ DEB_BUILD_HARDENING=1
 %:
 	dh $@ --with autoreconf
 
+override_dh_auto_configure:
+	dh_auto_configure -- --without-sse CFLAGS="-DHAVE_SSE3 -march=atom -mtune=atom -O2" CXXFLAGS="-DHAVE_SSE3 -march=atom -mtune=atom -O2"
+
 override_dh_shlibdeps:
 	dh_shlibdeps --dpkg-shlibdeps-params=--ignore-missing-info