mcbts: Add multi-ARFCN radio support

Add new radio interface "radioInterfaceMulti" for multi-carrier
support.

Only USRP B200/B210 devices are supported because of sample
rate requirements (3.2 Msps).

Only 4 SPS operation Tx/RX is supported.

8-PSK is supported.

Other options may be added at a later time

Signed-off-by: Tom Tsou <tom.tsou@ettus.com>

1 files changed, 31 insertions, 1 deletions

diff --git a/Transceiver52M/radioInterface.h b/Transceiver52M/radioInterface.h
index 1f225a2..b63cc4c 100644
--- a/Transceiver52M/radioInterface.h
+++ b/Transceiver52M/radioInterface.h
@@ -22,6 +22,8 @@
 #include "radioClock.h"
 #include "radioBuffer.h"
 #include "Resampler.h"
+#include "Channelizer.h"
+#include "Synthesis.h"
 
 static const unsigned gSlotLen = 148;      ///< number of symbols per slot, not counting guard periods
 
@@ -101,7 +103,7 @@ public:
   RadioClock* getClock(void) { return &mClock;};
 
   /** set transmit frequency */
-  bool tuneTx(double freq, size_t chan = 0);
+  virtual bool tuneTx(double freq, size_t chan = 0);
 
   /** set receive frequency */
   virtual bool tuneRx(double freq, size_t chan = 0);
@@ -164,6 +166,34 @@ public:
   void close();
 };
 
+class RadioInterfaceMulti : public RadioInterface {
+private:
+  bool pushBuffer();
+  void pullBuffer();
+
+  signalVector *outerSendBuffer;
+  signalVector *outerRecvBuffer;
+  std::vector<signalVector *> history;
+  std::vector<bool> active;
+
+  Resampler *dnsampler;
+  Resampler *upsampler;
+  Channelizer *channelizer;
+  Synthesis *synthesis;
+
+public:
+  RadioInterfaceMulti(RadioDevice* radio, size_t tx_sps,
+                      size_t rx_sps, size_t chans = 1);
+  ~RadioInterfaceMulti();
+
+  bool init(int type);
+  void close();
+
+  bool tuneTx(double freq, size_t chan);
+  bool tuneRx(double freq, size_t chan);
+  double setRxGain(double dB, size_t chan);
+};
+
 class RadioInterfaceDiversity : public RadioInterface {
 public:
   RadioInterfaceDiversity(RadioDevice* wRadio,