diff --git a/src/wifi/model/wifi-mac-header.cc b/src/wifi/model/wifi-mac-header.cc
index 65e0494f0..a7b09dcb1 100644
--- a/src/wifi/model/wifi-mac-header.cc
+++ b/src/wifi/model/wifi-mac-header.cc
@@ -383,6 +383,13 @@ void WifiMacHeader::SetQosTxopLimit (uint8_t txop)
   m_qosStuff = txop;
 }
 
+void
+WifiMacHeader::SetQosQueueSize (uint8_t size)
+{
+  m_qosEosp = 1;
+  m_qosStuff = size;
+}
+
 void WifiMacHeader::SetQosMeshControlPresent (void)
 {
   //Mark bit 0 of this variable instead of bit 8, since m_qosStuff is
@@ -835,6 +842,13 @@ WifiMacHeader::GetQosTid (void) const
   return m_qosTid;
 }
 
+uint8_t
+WifiMacHeader::GetQosQueueSize (void) const
+{
+  NS_ASSERT (m_qosEosp == 1);
+  return m_qosStuff;
+}
+
 uint16_t
 WifiMacHeader::GetFrameControl (void) const
 {
diff --git a/src/wifi/model/wifi-mac-header.h b/src/wifi/model/wifi-mac-header.h
index e7c76dd43..0264d9625 100644
--- a/src/wifi/model/wifi-mac-header.h
+++ b/src/wifi/model/wifi-mac-header.h
@@ -249,6 +249,12 @@ public:
    * \param txop the TXOP limit
    */
   void SetQosTxopLimit (uint8_t txop);
+  /**
+   * Set the Queue Size subfield in the QoS control field.
+   *
+   * \param size the value for the Queue Size subfield
+   */
+  void SetQosQueueSize (uint8_t size);
   /**
    * Set the Mesh Control Present flag for the QoS header.
    */
@@ -544,6 +550,12 @@ public:
    * \return the QoS Ack policy in the QoS control field
    */
   QosAckPolicy GetQosAckPolicy (void) const;
+  /**
+   * Get the Queue Size subfield in the QoS control field.
+   *
+   * \return the value of the Queue Size subfield
+   */
+  uint8_t GetQosQueueSize (void) const;
   /**
    * Return the size of the WifiMacHeader in octets.
    * GetSerializedSize calls this function.