lte: Add m_componentCarrierId to UeManager to track primary CC

src/lte/model/lte-enb-rrc.cc

@@ -143,6 +143,7 @@ UeManager::UeManager (Ptr<LteEnbRrc> rrc, uint16_t rnti, State s)
   : m_lastAllocatedDrbid (0),
     m_rnti (rnti),
     m_imsi (0),
+    m_componentCarrierId (0),
     m_lastRrcTransactionIdentifier (0),
     m_rrc (rrc),
     m_state (s),

src/lte/model/lte-enb-rrc.h

@@ -488,6 +488,10 @@ private:
    * unique UE identifier.
    */
   uint64_t m_imsi;
+  /**
+   * ID of the primary CC for this UE
+   */
+  uint8_t m_componentCarrierId;
   
   uint8_t m_lastRrcTransactionIdentifier; ///< last RRC transaction identifier